WIP Backends: SDLRenderer3: fix for imgui_impl_sdl3 backend change storing WindowID instead of pointer in PlatformHandle.

.github/ISSUE_TEMPLATE/issue_template.yml

@@ -4,12 +4,10 @@ body:
   - type: markdown
     attributes:
       value: |
-        FOR FIRST-TIME USERS ISSUES COMPILING/LINKING/RUNNING, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions)
-        For anything else: **we are happy to use 'GitHub Issues' for many types of open-ended questions**. We are encouraging 'Issues' becoming a large, centralized, tagged, cross-referenced database of Dear ImGui contents.
+        FOR FIRST-TIME USERS ISSUES COMPILING/LINKING/RUNNING or LOADING FONTS, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions)
+        For anything else: we are happy to use 'GitHub Issues' for many types of open-ended questions. We are encouraging 'Issues' becoming a large, centralized and cross-referenced database of Dear ImGui contents.
 
         Be mindful that messages are being sent to the e-mail box of "Watching" users. Try to proof-read your messages before sending them. Edits are not seen by those users.
-
-        **If you are using Dear ImGui as part of a job that you are being well-paid for** and your company is not a sponsor. Please be mindful that this is a Free Software and you might be about to ask volunteers to help you doing your job. Please put extra effort describing your issue or question properly. If your company is wealthy, please read [Funding](https://github.com/ocornut/imgui/wiki/Funding) and consider getting in touch.
   - type: markdown
     attributes:
       value: |

.github/pull_request_template.md

@@ -2,7 +2,5 @@
 
 1. PLEASE CAREFULLY READ: [Contributing Guidelines](https://github.com/ocornut/imgui/blob/master/docs/CONTRIBUTING.md)
 
-2. Make sure you're using a special branch just for this pull request. (Sometimes people unknowingly use a default branch, then later update that branch, which updates the pull request with the other changes if it hasn't been merged yet.)
-
-3. Clear this template before submitting your PR.
+2. Clear this template before submitting your PR.
 

.github/workflows/build.yml

@@ -17,23 +17,19 @@ on:
 
 jobs:
   Windows:
-    runs-on: windows-2025
+    runs-on: windows-2019
     env:
-      VS_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\
-      MSBUILD_PATH: C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\
+      VS_PATH: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\
+      MSBUILD_PATH: C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\
     steps:
       - uses: actions/checkout@v4
 
       - name: Install Dependencies
         shell: powershell
         run: |
-          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL2-devel-2.32.8-VC.zip" -OutFile "SDL2-devel-2.32.8-VC.zip"
-          Expand-Archive -Path SDL2-devel-2.32.8-VC.zip
-          echo "SDL2_DIR=$(pwd)\SDL2-devel-2.32.8-VC\SDL2-2.32.8\" >>${env:GITHUB_ENV}
-          
-          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL3-devel-3.2.18-VC.zip" -OutFile "SDL3-devel-3.2.18-VC.zip"
-          Expand-Archive -Path SDL3-devel-3.2.18-VC.zip
-          echo "SDL3_DIR=$(pwd)\SDL3-devel-3.2.18-VC\SDL3-3.2.18\" >>${env:GITHUB_ENV}
+          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL2-devel-2.26.3-VC.zip" -OutFile "SDL2-devel-2.26.3-VC.zip"
+          Expand-Archive -Path SDL2-devel-2.26.3-VC.zip
+          echo "SDL2_DIR=$(pwd)\SDL2-devel-2.26.3-VC\SDL2-2.26.3\" >>${env:GITHUB_ENV}
 
           Invoke-WebRequest -Uri "https://github.com/ocornut/imgui/files/3789205/vulkan-sdk-1.1.121.2.zip" -OutFile vulkan-sdk-1.1.121.2.zip
           Expand-Archive -Path vulkan-sdk-1.1.121.2.zip
@@ -44,8 +40,8 @@ jobs:
         run: |
           # CI workers do not supporter older Visual Studio versions. Fix projects to target newer available version.
           gci -recurse -filter "*.vcxproj" | ForEach-Object {
-            (Get-Content $_.FullName) -Replace "<PlatformToolset>v\d{3}</PlatformToolset>","<PlatformToolset>v143</PlatformToolset>" | Set-Content -Path $_.FullName
-            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>[\d\.]+</WindowsTargetPlatformVersion>",'<WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>' | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<PlatformToolset>v\d{3}</PlatformToolset>","<PlatformToolset>v142</PlatformToolset>" | Set-Content -Path $_.FullName
+            (Get-Content $_.FullName) -Replace "<WindowsTargetPlatformVersion>[\d\.]+</WindowsTargetPlatformVersion>","<WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>" | Set-Content -Path $_.FullName
           }
 
       # Not using matrix here because it would inflate job count too much. Check out and setup is done for every job and that makes build times way too long.
@@ -55,11 +51,15 @@ jobs:
       - name: Build example_null (mingw 64-bit, as DLL)
         shell: bash
         run: |
-          echo '#define IMGUI_API __declspec(dllexport)'         >  example_single_file.cpp
+          echo '#ifdef _EXPORT'                                  >  example_single_file.cpp
+          echo '#  define IMGUI_API __declspec(dllexport)'       >> example_single_file.cpp
+          echo '#else'                                           >> example_single_file.cpp
+          echo '#  define IMGUI_API __declspec(dllimport)'       >> example_single_file.cpp
+          echo '#endif'                                          >> example_single_file.cpp
           echo '#define IMGUI_IMPLEMENTATION'                    >> example_single_file.cpp
           echo '#include "misc/single_file/imgui_single_file.h"' >> example_single_file.cpp
-          g++ -I. -Wall -Wformat -shared -o libimgui.dll -Wl,--out-implib,libimgui.a example_single_file.cpp -limm32
-          g++ -I. -Wall -Wformat -DIMGUI_API='__declspec(dllimport)' -o example_null.exe examples/example_null/main.cpp -L. -limgui
+          g++ -I. -Wall -Wformat -D_EXPORT -shared -o libimgui.dll -Wl,--out-implib,libimgui.a example_single_file.cpp -limm32
+          g++ -I. -Wall -Wformat -o example_null.exe examples/example_null/main.cpp -L. -limgui
           rm -f example_null.exe libimgui.* example_single_file.*
 
       - name: Build example_null (extra warnings, msvc 64-bit)
@@ -99,19 +99,20 @@ jobs:
         run: |
           call "%VS_PATH%\VC\Auxiliary\Build\vcvars64.bat"
 
-          echo #define IMGUI_API __declspec(dllexport)         >  example_single_file.cpp
+          echo #ifdef _EXPORT                                  >  example_single_file.cpp
+          echo #  define IMGUI_API __declspec(dllexport)       >> example_single_file.cpp
+          echo #else                                           >> example_single_file.cpp
+          echo #  define IMGUI_API __declspec(dllimport)       >> example_single_file.cpp
+          echo #endif                                          >> example_single_file.cpp
           echo #define IMGUI_IMPLEMENTATION                    >> example_single_file.cpp
           echo #include "misc/single_file/imgui_single_file.h" >> example_single_file.cpp
 
-          cl.exe /D_USRDLL /D_WINDLL /I. example_single_file.cpp /LD /FeImGui.dll /link
-          cl.exe /DIMGUI_API=__declspec(dllimport) /I. ImGui.lib /Feexample_null.exe examples/example_null/main.cpp
+          cl.exe /D_USRDLL /D_WINDLL /D_EXPORT /I. example_single_file.cpp /LD /FeImGui.dll /link
+          cl.exe /I. ImGui.lib /Feexample_null.exe examples/example_null/main.cpp
 
-      # Win64 examples are more frequently compilted than the Win32 examples.
-      # More of the Win32 examples requires 'workflow_run' to reduce waste.
       - name: Build Win32 example_glfw_opengl2
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl2/example_glfw_opengl2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
 
       - name: Build Win32 example_glfw_opengl3
         shell: cmd
@@ -147,116 +148,77 @@ jobs:
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win32 example_sdl3_opengl3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_opengl3/example_sdl3_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-
-      - name: Build Win32 example_sdl3_sdlgpu3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
-
-      - name: Build Win32 example_sdl3_sdlrenderer3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
-
-      - name: Build Win32 example_sdl3_vulkan
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_vulkan/example_sdl3_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
-
       - name: Build Win32 example_win32_directx9
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx9/example_win32_directx9.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
 
       - name: Build Win32 example_win32_directx10
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx10/example_win32_directx10.vcxproj /p:Platform=Win32 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
 
       - name: Build Win32 example_win32_directx11
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx11/example_win32_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      # Windows 64-bits
-      - name: Build Win64 example_glfw_opengl2
+      - name: Build x64 example_glfw_opengl2
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl2/example_glfw_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_glfw_opengl3
+      - name: Build x64 example_glfw_opengl3
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_opengl3/example_glfw_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
-      - name: Build Win64 example_glfw_vulkan
+      - name: Build x64 example_glfw_vulkan
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
-      - name: Build Win64 example_sdl2_sdlrenderer2
+      - name: Build x64 example_sdl2_sdlrenderer2
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_sdl2_vulkan
+      - name: Build x64 example_sdl2_vulkan
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_sdl2_opengl2
+      - name: Build x64 example_sdl2_opengl2
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_sdl2_opengl3
+      - name: Build x64 example_sdl2_opengl3
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_sdl2_directx11
+      - name: Build x64 example_sdl2_directx11
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
-      - name: Build Win64 example_sdl3_opengl3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_opengl3/example_sdl3_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
-
-      - name: Build Win64 example_sdl3_sdlgpu3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj /p:Platform=x64 /p:Configuration=Release'
-
-      - name: Build Win64 example_sdl3_sdlrenderer3
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj /p:Platform=x64 /p:Configuration=Release'
-
-      - name: Build Win64 example_sdl3_vulkan
-        shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl3_vulkan/example_sdl3_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
-        if: github.event_name == 'workflow_run'
-
-      - name: Build Win64 example_win32_directx9
+      - name: Build x64 example_win32_directx9
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx9/example_win32_directx9.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_win32_directx10
+      - name: Build x64 example_win32_directx10
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx10/example_win32_directx10.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_win32_directx11
+      - name: Build x64 example_win32_directx11
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx11/example_win32_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        if: github.event_name == 'workflow_run'
 
-      - name: Build Win64 example_win32_directx12
+      - name: Build x64 example_win32_directx12
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_win32_directx12/example_win32_directx12.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
   Linux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
 
@@ -479,7 +441,7 @@ jobs:
 
     - name: Install Dependencies
       run: |
-        brew install glfw3 sdl2 sdl3
+        brew install glfw3 sdl2
 
     - name: Build example_null (extra warnings, clang 64-bit)
       run: make -C examples/example_null WITH_EXTRA_WARNINGS=1
@@ -537,9 +499,6 @@ jobs:
     - name: Build example_sdl2_opengl3
       run: make -C examples/example_sdl2_opengl3
 
-    - name: Build example_sdl3_opengl3
-      run: make -C examples/example_sdl3_opengl3
-
     - name: Build example_apple_metal
       run: xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos
 
@@ -557,7 +516,7 @@ jobs:
         xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_ios CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO
 
   Emscripten:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
 
@@ -598,7 +557,7 @@ jobs:
         cmake --build build
 
   Android:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4
 

.github/workflows/static-analysis.yml

@@ -10,7 +10,7 @@ on:
 
 jobs:
   PVS-Studio:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
         with:

.gitignore

@@ -29,14 +29,12 @@ ipch
 ## Getting files created in JSON/Schemas/Catalog/ from a VS2022 update
 JSON/
 
-## Commonly used CMake directories & CMake CPM cache
+## Commonly used CMake directories
 build*/
-.cache
 
-## Xcode & macOS artifacts
+## Xcode artifacts
 project.xcworkspace
 xcuserdata
-examples/*/*.dSYM
 
 ## Emscripten artifacts
 examples/*.o.tmp
@@ -51,25 +49,13 @@ examples/example_sdl2_opengl3/web/*
 .idea
 cmake-build-*
 
-## VS code artifacts
-.vscode
-
 ## Unix executables from our example Makefiles
-examples/example_apple_metal/example_apple_metal
-examples/example_apple_opengl2/example_apple_opengl2
 examples/example_glfw_metal/example_glfw_metal
 examples/example_glfw_opengl2/example_glfw_opengl2
 examples/example_glfw_opengl3/example_glfw_opengl3
-examples/example_glfw_vulkan/example_glfw_vulkan
 examples/example_glut_opengl2/example_glut_opengl2
 examples/example_null/example_null
 examples/example_sdl2_metal/example_sdl2_metal
 examples/example_sdl2_opengl2/example_sdl2_opengl2
 examples/example_sdl2_opengl3/example_sdl2_opengl3
-examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2
-examples/example_sdl2_vulkan/example_sdl2_vulkan
-examples/example_sdl3_metal/example_sdl3_metal
-examples/example_sdl3_opengl3/example_sdl3_opengl3
-examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3
-examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3
-examples/example_sdl3_vulkan/example_sdl3_vulkan
+examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014-2025 Omar Cornut
+Copyright (c) 2014-2024 Omar Cornut
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

backends/imgui_impl_allegro5.cpp

@@ -2,15 +2,14 @@
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy ALLEGRO_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Clipboard support (from Allegro 5.1.12).
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-// Missing features or Issues:
-//  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [X] Platform: Clipboard support (from Allegro 5.1.12)
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows)..
+//  [ ] Renderer: The renderer is suboptimal as we need to convert vertices manually.
 //  [ ] Platform: Missing gamepad support.
-//  [ ] Renderer: Multi-viewport support (multiple windows).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -22,12 +21,6 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-08-12: Inputs: fixed missing support for ImGuiKey_PrintScreen under Windows, as raw Allegro 5 does not receive it.
-//  2025-08-12: Added ImGui_ImplAllegro5_SetDisplay() function to change current ALLEGRO_DISPLAY, as Allegro applications often need to do that.
-//  2025-07-07: Fixed texture update broken on some platforms where ALLEGRO_LOCK_WRITEONLY needed all texels to be rewritten.
-//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLGPU3_CreateFontsTexture() and ImGui_ImplSDLGPU3_DestroyFontsTexture().
-//  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
-//  2025-01-06: Avoid calling al_set_mouse_cursor() repeatedly since it appears to leak on on X11 (#8256).
 //  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
 //               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
 //               - io.SetClipboardTextFn    -> platform_io.Platform_SetClipboardTextFn
@@ -103,7 +96,6 @@ struct ImGui_ImplAllegro5_Data
     ALLEGRO_MOUSE_CURSOR*       MouseCursorInvisible;
     ALLEGRO_VERTEX_DECL*        VertexDecl;
     char*                       ClipboardTextData;
-    ImGuiMouseCursor            LastCursor;
 
     ImVector<ImDrawVertAllegro> BufVertices;
     ImVector<int>               BufIndices;
@@ -143,13 +135,6 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
     if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
         return;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplAllegro5_UpdateTexture(tex);
-
     // Backup Allegro state that will be modified
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
     ALLEGRO_TRANSFORM last_transform = *al_get_current_transform();
@@ -163,8 +148,10 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplAllegro5_SetupRenderState(draw_data);
 
     // Render command lists
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
+
         ImVector<ImDrawVertAllegro>& vertices = bd->BufVertices;
 #if ALLEGRO_HAS_DRAW_INDEXED_PRIM
         vertices.resize(draw_list->VtxBuffer.Size);
@@ -243,7 +230,43 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
 
 bool ImGui_ImplAllegro5_CreateDeviceObjects()
 {
+    // Build texture atlas
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    ImGuiIO& io = ImGui::GetIO();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+    // Create texture
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    int flags = al_get_new_bitmap_flags();
+    int fmt = al_get_new_bitmap_format();
+    al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR);
+    al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ABGR_8888_LE);
+    ALLEGRO_BITMAP* img = al_create_bitmap(width, height);
+    al_set_new_bitmap_flags(flags);
+    al_set_new_bitmap_format(fmt);
+    if (!img)
+        return false;
+
+    ALLEGRO_LOCKED_REGION* locked_img = al_lock_bitmap(img, al_get_bitmap_format(img), ALLEGRO_LOCK_WRITEONLY);
+    if (!locked_img)
+    {
+        al_destroy_bitmap(img);
+        return false;
+    }
+    memcpy(locked_img->data, pixels, sizeof(int) * width * height);
+    al_unlock_bitmap(img);
+
+    // Convert software texture to hardware texture.
+    ALLEGRO_BITMAP* cloned_img = al_clone_bitmap(img);
+    al_destroy_bitmap(img);
+    if (!cloned_img)
+        return false;
+
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)cloned_img);
+    bd->Texture = cloned_img;
 
     // Create an invisible mouse cursor
     // Because al_hide_mouse_cursor() seems to mess up with the actual inputs..
@@ -254,82 +277,16 @@ bool ImGui_ImplAllegro5_CreateDeviceObjects()
     return true;
 }
 
-void ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex)
-{
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // Create texture
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-        const int new_bitmap_flags = al_get_new_bitmap_flags();
-        int new_bitmap_format = al_get_new_bitmap_format();
-        al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR);
-        al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ABGR_8888_LE);
-        ALLEGRO_BITMAP* cpu_bitmap = al_create_bitmap(tex->Width, tex->Height);
-        IM_ASSERT(cpu_bitmap != nullptr && "Backend failed to create texture!");
-
-        // Upload pixels
-        ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap(cpu_bitmap, al_get_bitmap_format(cpu_bitmap), ALLEGRO_LOCK_WRITEONLY);
-        IM_ASSERT(locked_region != nullptr && "Backend failed to create texture!");
-        memcpy(locked_region->data, tex->GetPixels(), tex->GetSizeInBytes());
-        al_unlock_bitmap(cpu_bitmap);
-
-        // Convert software texture to hardware texture.
-        al_set_new_bitmap_flags(ALLEGRO_VIDEO_BITMAP);
-        al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ANY_32_WITH_ALPHA);
-        ALLEGRO_BITMAP* gpu_bitmap = al_clone_bitmap(cpu_bitmap);
-        al_destroy_bitmap(cpu_bitmap);
-        IM_ASSERT(gpu_bitmap != nullptr && "Backend failed to create texture!");
-
-        al_set_new_bitmap_flags(new_bitmap_flags);
-        al_set_new_bitmap_format(new_bitmap_format);
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)gpu_bitmap);
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        ImTextureRect r = tex->UpdateRect; // Bounding box encompassing all individual updates
-        ALLEGRO_BITMAP* gpu_bitmap = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID;
-        ALLEGRO_LOCKED_REGION* locked_region = al_lock_bitmap_region(gpu_bitmap, r.x, r.y, r.w, r.h, al_get_bitmap_format(gpu_bitmap), ALLEGRO_LOCK_WRITEONLY);
-        IM_ASSERT(locked_region && "Backend failed to update texture!");
-        for (int y = 0; y < r.h; y++)
-            memcpy((unsigned char*)locked_region->data + locked_region->pitch * y, tex->GetPixelsAt(r.x, r.y + y), r.w * tex->BytesPerPixel); // dst, src, block pitch
-        al_unlock_bitmap(gpu_bitmap);
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy)
-    {
-        ALLEGRO_BITMAP* backend_tex = (ALLEGRO_BITMAP*)(intptr_t)tex->TexID;
-        if (backend_tex)
-            al_destroy_bitmap(backend_tex);
-
-        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
-    }
-}
-
 void ImGui_ImplAllegro5_InvalidateDeviceObjects()
 {
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
-
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-        {
-            tex->SetStatus(ImTextureStatus_WantDestroy);
-            ImGui_ImplAllegro5_UpdateTexture(tex);
-        }
-
-    // Destroy mouse cursor
+    if (bd->Texture)
+    {
+        io.Fonts->SetTexID(0);
+        al_destroy_bitmap(bd->Texture);
+        bd->Texture = nullptr;
+    }
     if (bd->MouseCursorInvisible)
     {
         al_destroy_mouse_cursor(bd->MouseCursorInvisible);
@@ -480,11 +437,20 @@ bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
     io.BackendPlatformUserData = (void*)bd;
     io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5";
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
-    bd->LastCursor = ALLEGRO_SYSTEM_MOUSE_CURSOR_NONE;
+    bd->Display = display;
 
-    ImGui_ImplAllegro5_SetDisplay(display);
+    // Create custom vertex declaration.
+    // Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 floats.
+    // We still use a custom declaration to use 'ALLEGRO_PRIM_TEX_COORD' instead of 'ALLEGRO_PRIM_TEX_COORD_PIXEL' else we can't do a reliable conversion.
+    ALLEGRO_VERTEX_ELEMENT elems[] =
+    {
+        { ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, pos) },
+        { ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, uv) },
+        { ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(ImDrawVertAllegro, col) },
+        { 0, 0, 0 }
+    };
+    bd->VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
 
 #if ALLEGRO_HAS_CLIPBOARD
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
@@ -509,37 +475,10 @@ void ImGui_ImplAllegro5_Shutdown()
 
     io.BackendPlatformName = io.BackendRendererName = nullptr;
     io.BackendPlatformUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_RendererHasTextures);
+    io.BackendFlags &= ~ImGuiBackendFlags_HasMouseCursors;
     IM_DELETE(bd);
 }
 
-void ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display)
-{
-    ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
-    bd->Display = display;
-
-    if (bd->VertexDecl)
-    {
-        al_destroy_vertex_decl(bd->VertexDecl);
-        bd->VertexDecl = NULL;
-    }
-
-    if (bd->Display && !bd->VertexDecl)
-    {
-        // Create custom vertex declaration.
-        // Unfortunately Allegro doesn't support 32-bits packed colors so we have to convert them to 4 floats.
-        // We still use a custom declaration to use 'ALLEGRO_PRIM_TEX_COORD' instead of 'ALLEGRO_PRIM_TEX_COORD_PIXEL' else we can't do a reliable conversion.
-        ALLEGRO_VERTEX_ELEMENT elems[] =
-        {
-            { ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, pos) },
-            { ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, offsetof(ImDrawVertAllegro, uv) },
-            { ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(ImDrawVertAllegro, col) },
-            { 0, 0, 0 }
-        };
-        bd->VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
-    }
-}
-
 // ev->keyboard.modifiers seems always zero so using that...
 static void ImGui_ImplAllegro5_UpdateKeyModifiers()
 {
@@ -630,16 +569,9 @@ static void ImGui_ImplAllegro5_UpdateMouseCursor()
 
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
     ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
-
-    // Hide OS mouse cursor if imgui is drawing it
-    if (io.MouseDrawCursor)
-        imgui_cursor = ImGuiMouseCursor_None;
-
-    if (bd->LastCursor == imgui_cursor)
-        return;
-    bd->LastCursor = imgui_cursor;
-    if (imgui_cursor == ImGuiMouseCursor_None)
+    if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
     {
+        // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
         al_set_mouse_cursor(bd->Display, bd->MouseCursorInvisible);
     }
     else
@@ -653,8 +585,6 @@ static void ImGui_ImplAllegro5_UpdateMouseCursor()
         case ImGuiMouseCursor_ResizeEW:     cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_E; break;
         case ImGuiMouseCursor_ResizeNESW:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NE; break;
         case ImGuiMouseCursor_ResizeNWSE:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NW; break;
-        case ImGuiMouseCursor_Wait:         cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_BUSY; break;
-        case ImGuiMouseCursor_Progress:     cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_PROGRESS; break;
         case ImGuiMouseCursor_NotAllowed:   cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_UNAVAILABLE; break;
         }
         al_set_system_mouse_cursor(bd->Display, cursor_id);
@@ -666,11 +596,12 @@ void ImGui_ImplAllegro5_NewFrame()
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
 
-    if (!bd->MouseCursorInvisible)
+    if (!bd->Texture)
         ImGui_ImplAllegro5_CreateDeviceObjects();
 
-    // Setup display size (every frame to accommodate for window resizing)
     ImGuiIO& io = ImGui::GetIO();
+
+    // Setup display size (every frame to accommodate for window resizing)
     int w, h;
     w = al_get_display_width(bd->Display);
     h = al_get_display_height(bd->Display);
@@ -681,11 +612,6 @@ void ImGui_ImplAllegro5_NewFrame()
     io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
-    // Allegro 5 doesn't receive PrintScreen under Windows
-#ifdef _WIN32
-    io.AddKeyEvent(ImGuiKey_PrintScreen, (::GetAsyncKeyState(VK_SNAPSHOT) & 0x8000) != 0);
-#endif
-
     // Setup mouse cursor shape
     ImGui_ImplAllegro5_UpdateMouseCursor();
 }

backends/imgui_impl_allegro5.h

@@ -2,15 +2,14 @@
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy ALLEGRO_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Clipboard support (from Allegro 5.1.12).
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-// Missing features or Issues:
+//  [X] Platform: Clipboard support (from Allegro 5.1.12)
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows)..
 //  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
 //  [ ] Platform: Missing gamepad support.
-//  [ ] Renderer: Multi-viewport support (multiple windows).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -33,13 +32,9 @@ IMGUI_IMPL_API void     ImGui_ImplAllegro5_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_NewFrame();
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* event);
-IMGUI_IMPL_API void     ImGui_ImplAllegro5_SetDisplay(ALLEGRO_DISPLAY* display);
 
 // Use if you want to reset your rendering device without losing Dear ImGui state.
 IMGUI_IMPL_API bool     ImGui_ImplAllegro5_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplAllegro5_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplAllegro5_UpdateTexture(ImTextureData* tex);
-
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_android.cpp

@@ -4,10 +4,10 @@
 // Implemented features:
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy AKEYCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
-// Missing features or Issues:
+// Missing features:
 //  [ ] Platform: Clipboard support.
-//  [ ] Platform: Gamepad support.
-//  [ ] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
+//  [ ] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [ ] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
 //  [ ] Platform: Multi-viewport support (multiple windows). Not meaningful on Android.
 // Important:
 //  - Consider using SDL or GLFW backend on Android, which will be more full-featured than this.

backends/imgui_impl_android.h

@@ -4,10 +4,10 @@
 // Implemented features:
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy AKEYCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
-// Missing features or Issues:
+// Missing features:
 //  [ ] Platform: Clipboard support.
-//  [ ] Platform: Gamepad support.
-//  [ ] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
+//  [ ] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [ ] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
 //  [ ] Platform: Multi-viewport support (multiple windows). Not meaningful on Android.
 // Important:
 //  - Consider using SDL or GLFW backend on Android, which will be more full-featured than this.

backends/imgui_impl_dx10.cpp

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -17,10 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-11: DirectX10: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
-//  2025-05-07: DirectX10: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
-//  2025-01-06: DirectX10: Expose selected render state in ImGui_ImplDX10_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-07: DirectX10: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
 //  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
@@ -52,19 +48,7 @@
 #pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
 #endif
 
-// Clang/GCC warnings with -Weverything
-#if defined(__clang__)
-#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
-#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
-#endif
-
-// DirectX10 data
-struct ImGui_ImplDX10_Texture
-{
-    ID3D10Texture2D*            pTexture;
-    ID3D10ShaderResourceView*   pTextureView;
-};
-
+// DirectX data
 struct ImGui_ImplDX10_Data
 {
     ID3D10Device*               pd3dDevice;
@@ -76,6 +60,7 @@ struct ImGui_ImplDX10_Data
     ID3D10Buffer*               pVertexConstantBuffer;
     ID3D10PixelShader*          pPixelShader;
     ID3D10SamplerState*         pFontSampler;
+    ID3D10ShaderResourceView*   pFontTextureView;
     ID3D10RasterizerState*      pRasterizerState;
     ID3D10BlendState*           pBlendState;
     ID3D10DepthStencilState*    pDepthStencilState;
@@ -107,36 +92,16 @@ static void ImGui_ImplDX10_SetupRenderState(ImDrawData* draw_data, ID3D10Device*
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
 
     // Setup viewport
-    D3D10_VIEWPORT vp = {};
-    vp.Width = (UINT)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
-    vp.Height = (UINT)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    D3D10_VIEWPORT vp;
+    memset(&vp, 0, sizeof(D3D10_VIEWPORT));
+    vp.Width = (UINT)draw_data->DisplaySize.x;
+    vp.Height = (UINT)draw_data->DisplaySize.y;
     vp.MinDepth = 0.0f;
     vp.MaxDepth = 1.0f;
     vp.TopLeftX = vp.TopLeftY = 0;
     device->RSSetViewports(1, &vp);
 
-    // Setup orthographic projection matrix into our constant buffer
-    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
-    void* mapped_resource;
-    if (bd->pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) == S_OK)
-    {
-        VERTEX_CONSTANT_BUFFER_DX10* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX10*)mapped_resource;
-        float L = draw_data->DisplayPos.x;
-        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
-        float T = draw_data->DisplayPos.y;
-        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
-        float mvp[4][4] =
-        {
-            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
-            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
-            { 0.0f,         0.0f,           0.5f,       0.0f },
-            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
-        };
-        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
-        bd->pVertexConstantBuffer->Unmap();
-    }
-
-    // Setup shader and vertex buffers
+    // Bind shader and vertex buffers
     unsigned int stride = sizeof(ImDrawVert);
     unsigned int offset = 0;
     device->IASetInputLayout(bd->pInputLayout);
@@ -166,19 +131,13 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
     ID3D10Device* device = bd->pd3dDevice;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplDX10_UpdateTexture(tex);
-
     // Create and grow vertex/index buffers if needed
     if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
     {
         if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
         bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
-        D3D10_BUFFER_DESC desc = {};
+        D3D10_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
         desc.Usage = D3D10_USAGE_DYNAMIC;
         desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
         desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
@@ -192,7 +151,8 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     {
         if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
         bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
-        D3D10_BUFFER_DESC desc = {};
+        D3D10_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
         desc.Usage = D3D10_USAGE_DYNAMIC;
         desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
         desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
@@ -206,8 +166,9 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     ImDrawIdx* idx_dst = nullptr;
     bd->pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&vtx_dst);
     bd->pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&idx_dst);
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
         memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
         vtx_dst += draw_list->VtxBuffer.Size;
@@ -216,6 +177,28 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     bd->pVB->Unmap();
     bd->pIB->Unmap();
 
+    // Setup orthographic projection matrix into our constant buffer
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    {
+        void* mapped_resource;
+        if (bd->pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
+            return;
+        VERTEX_CONSTANT_BUFFER_DX10* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX10*)mapped_resource;
+        float L = draw_data->DisplayPos.x;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+        float T = draw_data->DisplayPos.y;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+        float mvp[4][4] =
+        {
+            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
+            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
+            { 0.0f,         0.0f,           0.5f,       0.0f },
+            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
+        };
+        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
+        bd->pVertexConstantBuffer->Unmap();
+    }
+
     // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
     struct BACKUP_DX10_STATE
     {
@@ -259,26 +242,19 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
 
     // Setup desired DX state
     ImGui_ImplDX10_SetupRenderState(draw_data, device);
-    // Setup render state structure (for callbacks and custom texture bindings)
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    ImGui_ImplDX10_RenderState render_state;
-    render_state.Device = bd->pd3dDevice;
-    render_state.SamplerDefault = bd->pFontSampler;
-    render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
-    platform_io.Renderer_RenderState = &render_state;
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
     int global_vtx_offset = 0;
     int global_idx_offset = 0;
     ImVec2 clip_off = draw_data->DisplayPos;
-    ImVec2 clip_scale = draw_data->FramebufferScale;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
         {
             const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
-            if (pcmd->UserCallback != nullptr)
+            if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
                 // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
@@ -290,8 +266,8 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
             else
             {
                 // Project scissor/clipping rectangles into framebuffer space
-                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
-                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -308,7 +284,6 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
 
     // Restore modified DX state
     device->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
@@ -328,39 +303,21 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     device->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
 }
 
-static void ImGui_ImplDX10_DestroyTexture(ImTextureData* tex)
-{
-    ImGui_ImplDX10_Texture* backend_tex = (ImGui_ImplDX10_Texture*)tex->BackendUserData;
-    if (backend_tex == nullptr)
-        return;
-    IM_ASSERT(backend_tex->pTextureView == (ID3D10ShaderResourceView*)(intptr_t)tex->TexID);
-    backend_tex->pTexture->Release();
-    backend_tex->pTextureView->Release();
-    IM_DELETE(backend_tex);
-
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-    tex->BackendUserData = nullptr;
-}
-
-void ImGui_ImplDX10_UpdateTexture(ImTextureData* tex)
+static void ImGui_ImplDX10_CreateFontsTexture()
 {
+    // Build texture atlas
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        unsigned int* pixels = (unsigned int*)tex->GetPixels();
-        ImGui_ImplDX10_Texture* backend_tex = IM_NEW(ImGui_ImplDX10_Texture)();
+    ImGuiIO& io = ImGui::GetIO();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
 
-        // Create texture
+    // Upload texture to graphics system
+    {
         D3D10_TEXTURE2D_DESC desc;
         ZeroMemory(&desc, sizeof(desc));
-        desc.Width = (UINT)tex->Width;
-        desc.Height = (UINT)tex->Height;
+        desc.Width = width;
+        desc.Height = height;
         desc.MipLevels = 1;
         desc.ArraySize = 1;
         desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
@@ -369,12 +326,13 @@ void ImGui_ImplDX10_UpdateTexture(ImTextureData* tex)
         desc.BindFlags = D3D10_BIND_SHADER_RESOURCE;
         desc.CPUAccessFlags = 0;
 
+        ID3D10Texture2D* pTexture = nullptr;
         D3D10_SUBRESOURCE_DATA subResource;
         subResource.pSysMem = pixels;
         subResource.SysMemPitch = desc.Width * 4;
         subResource.SysMemSlicePitch = 0;
-        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &backend_tex->pTexture);
-        IM_ASSERT(backend_tex->pTexture != nullptr && "Backend failed to create texture!");
+        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
+        IM_ASSERT(pTexture != nullptr);
 
         // Create texture view
         D3D10_SHADER_RESOURCE_VIEW_DESC srv_desc;
@@ -383,29 +341,28 @@ void ImGui_ImplDX10_UpdateTexture(ImTextureData* tex)
         srv_desc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
         srv_desc.Texture2D.MipLevels = desc.MipLevels;
         srv_desc.Texture2D.MostDetailedMip = 0;
-        bd->pd3dDevice->CreateShaderResourceView(backend_tex->pTexture, &srv_desc, &backend_tex->pTextureView);
-        IM_ASSERT(backend_tex->pTextureView != nullptr && "Backend failed to create texture!");
+        bd->pd3dDevice->CreateShaderResourceView(pTexture, &srv_desc, &bd->pFontTextureView);
+        pTexture->Release();
+    }
 
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)backend_tex->pTextureView);
-        tex->SetStatus(ImTextureStatus_OK);
-        tex->BackendUserData = backend_tex;
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)bd->pFontTextureView);
+
+    // Create texture sampler
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
     {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        ImGui_ImplDX10_Texture* backend_tex = (ImGui_ImplDX10_Texture*)tex->BackendUserData;
-        IM_ASSERT(backend_tex->pTextureView == (ID3D10ShaderResourceView*)(intptr_t)tex->TexID);
-        for (ImTextureRect& r : tex->Updates)
-        {
-            D3D10_BOX box = { (UINT)r.x, (UINT)r.y, (UINT)0, (UINT)(r.x + r.w), (UINT)(r.y + r.h), (UINT)1 };
-            bd->pd3dDevice->UpdateSubresource(backend_tex->pTexture, 0, &box, tex->GetPixelsAt(r.x, r.y), (UINT)tex->GetPitch(), 0);
-        }
-        tex->SetStatus(ImTextureStatus_OK);
+        D3D10_SAMPLER_DESC desc;
+        ZeroMemory(&desc, sizeof(desc));
+        desc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR;
+        desc.AddressU = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressV = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.AddressW = D3D10_TEXTURE_ADDRESS_CLAMP;
+        desc.MipLODBias = 0.f;
+        desc.ComparisonFunc = D3D10_COMPARISON_ALWAYS;
+        desc.MinLOD = 0.f;
+        desc.MaxLOD = 0.f;
+        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pFontSampler);
     }
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-        ImGui_ImplDX10_DestroyTexture(tex);
 }
 
 bool    ImGui_ImplDX10_CreateDeviceObjects()
@@ -413,7 +370,8 @@ bool    ImGui_ImplDX10_CreateDeviceObjects()
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
     if (!bd->pd3dDevice)
         return false;
-    ImGui_ImplDX10_InvalidateDeviceObjects();
+    if (bd->pFontSampler)
+        ImGui_ImplDX10_InvalidateDeviceObjects();
 
     // By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
     // If you would like to use this DX10 sample code but remove this dependency you can:
@@ -476,7 +434,7 @@ bool    ImGui_ImplDX10_CreateDeviceObjects()
 
         // Create the constant buffer
         {
-            D3D10_BUFFER_DESC desc = {};
+            D3D10_BUFFER_DESC desc;
             desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER_DX10);
             desc.Usage = D3D10_USAGE_DYNAMIC;
             desc.BindFlags = D3D10_BIND_CONSTANT_BUFFER;
@@ -556,21 +514,7 @@ bool    ImGui_ImplDX10_CreateDeviceObjects()
         bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
     }
 
-    // Create texture sampler
-    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-    {
-        D3D10_SAMPLER_DESC desc;
-        ZeroMemory(&desc, sizeof(desc));
-        desc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR;
-        desc.AddressU = D3D10_TEXTURE_ADDRESS_CLAMP;
-        desc.AddressV = D3D10_TEXTURE_ADDRESS_CLAMP;
-        desc.AddressW = D3D10_TEXTURE_ADDRESS_CLAMP;
-        desc.MipLODBias = 0.f;
-        desc.ComparisonFunc = D3D10_COMPARISON_ALWAYS;
-        desc.MinLOD = 0.f;
-        desc.MaxLOD = 0.f;
-        bd->pd3dDevice->CreateSamplerState(&desc, &bd->pFontSampler);
-    }
+    ImGui_ImplDX10_CreateFontsTexture();
 
     return true;
 }
@@ -581,11 +525,8 @@ void    ImGui_ImplDX10_InvalidateDeviceObjects()
     if (!bd->pd3dDevice)
         return;
 
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplDX10_DestroyTexture(tex);
     if (bd->pFontSampler)           { bd->pFontSampler->Release(); bd->pFontSampler = nullptr; }
+    if (bd->pFontTextureView)       { bd->pFontTextureView->Release(); bd->pFontTextureView = nullptr; ImGui::GetIO().Fonts->SetTexID(0); } // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
     if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
     if (bd->pVB)                    { bd->pVB->Release(); bd->pVB = nullptr; }
     if (bd->pBlendState)            { bd->pBlendState->Release(); bd->pBlendState = nullptr; }
@@ -608,12 +549,8 @@ bool    ImGui_ImplDX10_Init(ID3D10Device* device)
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_dx10";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
-
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;
     IDXGIAdapter* pDXGIAdapter = nullptr;
@@ -646,7 +583,7 @@ void ImGui_ImplDX10_Shutdown()
     if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
 }
 
@@ -655,9 +592,8 @@ void ImGui_ImplDX10_NewFrame()
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX10_Init()?");
 
-    if (!bd->pVertexShader)
-        if (!ImGui_ImplDX10_CreateDeviceObjects())
-            IM_ASSERT(0 && "ImGui_ImplDX10_CreateDeviceObjects() failed!");
+    if (!bd->pFontSampler)
+        ImGui_ImplDX10_CreateDeviceObjects();
 }
 
 //--------------------------------------------------------------------------------------------------------
@@ -682,7 +618,7 @@ static void ImGui_ImplDX10_CreateWindow(ImGuiViewport* viewport)
     ImGui_ImplDX10_ViewportData* vd = IM_NEW(ImGui_ImplDX10_ViewportData)();
     viewport->RendererUserData = vd;
 
-    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
     // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
     HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
     IM_ASSERT(hwnd != 0);

backends/imgui_impl_dx10.h

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -20,8 +19,6 @@
 #ifndef IMGUI_DISABLE
 
 struct ID3D10Device;
-struct ID3D10SamplerState;
-struct ID3D10Buffer;
 
 // Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplDX10_Init(ID3D10Device* device);
@@ -33,17 +30,4 @@ IMGUI_IMPL_API void     ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX10_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX10_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplDX10_UpdateTexture(ImTextureData* tex);
-
-// [BETA] Selected render state data shared with callbacks.
-// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX10_RenderDrawData() call.
-// (Please open an issue if you feel you need access to more data)
-struct ImGui_ImplDX10_RenderState
-{
-    ID3D10Device*           Device;
-    ID3D10SamplerState*     SamplerDefault;
-    ID3D10Buffer*           VertexConstantBuffer;
-};
-
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx11.cpp

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
@@ -18,11 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-11: DirectX11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
-//  2025-05-07: DirectX11: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
-//  2025-02-24: [Docking] Added undocumented ImGui_ImplDX11_SetSwapChainDescs() to configure swap chain creation for secondary viewports.
-//  2025-01-06: DirectX11: Expose VertexConstantBuffer in ImGui_ImplDX11_RenderState. Reset projection matrix in ImDrawCallback_ResetRenderState handler.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-07: DirectX11: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2024-10-07: DirectX11: Expose selected render state in ImGui_ImplDX11_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
@@ -55,19 +50,7 @@
 #pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
 #endif
 
-// Clang/GCC warnings with -Weverything
-#if defined(__clang__)
-#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
-#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
-#endif
-
 // DirectX11 data
-struct ImGui_ImplDX11_Texture
-{
-    ID3D11Texture2D*            pTexture;
-    ID3D11ShaderResourceView*   pTextureView;
-};
-
 struct ImGui_ImplDX11_Data
 {
     ID3D11Device*               pd3dDevice;
@@ -80,12 +63,12 @@ struct ImGui_ImplDX11_Data
     ID3D11Buffer*               pVertexConstantBuffer;
     ID3D11PixelShader*          pPixelShader;
     ID3D11SamplerState*         pFontSampler;
+    ID3D11ShaderResourceView*   pFontTextureView;
     ID3D11RasterizerState*      pRasterizerState;
     ID3D11BlendState*           pBlendState;
     ID3D11DepthStencilState*    pDepthStencilState;
     int                         VertexBufferSize;
     int                         IndexBufferSize;
-    ImVector<DXGI_SWAP_CHAIN_DESC> SwapChainDescsForViewports;
 
     ImGui_ImplDX11_Data()       { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
 };
@@ -112,35 +95,15 @@ static void ImGui_ImplDX11_SetupRenderState(ImDrawData* draw_data, ID3D11DeviceC
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
 
     // Setup viewport
-    D3D11_VIEWPORT vp = {};
-    vp.Width = draw_data->DisplaySize.x * draw_data->FramebufferScale.x;
-    vp.Height = draw_data->DisplaySize.y * draw_data->FramebufferScale.y;
+    D3D11_VIEWPORT vp;
+    memset(&vp, 0, sizeof(D3D11_VIEWPORT));
+    vp.Width = draw_data->DisplaySize.x;
+    vp.Height = draw_data->DisplaySize.y;
     vp.MinDepth = 0.0f;
     vp.MaxDepth = 1.0f;
     vp.TopLeftX = vp.TopLeftY = 0;
     device_ctx->RSSetViewports(1, &vp);
 
-    // Setup orthographic projection matrix into our constant buffer
-    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
-    D3D11_MAPPED_SUBRESOURCE mapped_resource;
-    if (device_ctx->Map(bd->pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) == S_OK)
-    {
-        VERTEX_CONSTANT_BUFFER_DX11* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX11*)mapped_resource.pData;
-        float L = draw_data->DisplayPos.x;
-        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
-        float T = draw_data->DisplayPos.y;
-        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
-        float mvp[4][4] =
-        {
-            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
-            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
-            { 0.0f,         0.0f,           0.5f,       0.0f },
-            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
-        };
-        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
-        device_ctx->Unmap(bd->pVertexConstantBuffer, 0);
-    }
-
     // Setup shader and vertex buffers
     unsigned int stride = sizeof(ImDrawVert);
     unsigned int offset = 0;
@@ -157,7 +120,7 @@ static void ImGui_ImplDX11_SetupRenderState(ImDrawData* draw_data, ID3D11DeviceC
     device_ctx->DSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
     device_ctx->CSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
 
-    // Setup render state
+    // Setup blend state
     const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
     device_ctx->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
     device_ctx->OMSetDepthStencilState(bd->pDepthStencilState, 0);
@@ -174,19 +137,13 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
     ID3D11DeviceContext* device = bd->pd3dDeviceContext;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplDX11_UpdateTexture(tex);
-
     // Create and grow vertex/index buffers if needed
     if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
     {
         if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
         bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
-        D3D11_BUFFER_DESC desc = {};
+        D3D11_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
         desc.Usage = D3D11_USAGE_DYNAMIC;
         desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
         desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
@@ -199,7 +156,8 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     {
         if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
         bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
-        D3D11_BUFFER_DESC desc = {};
+        D3D11_BUFFER_DESC desc;
+        memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
         desc.Usage = D3D11_USAGE_DYNAMIC;
         desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
         desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
@@ -216,8 +174,9 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
         return;
     ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
     ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
         memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
         vtx_dst += draw_list->VtxBuffer.Size;
@@ -226,6 +185,28 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     device->Unmap(bd->pVB, 0);
     device->Unmap(bd->pIB, 0);
 
+    // Setup orthographic projection matrix into our constant buffer
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    {
+        D3D11_MAPPED_SUBRESOURCE mapped_resource;
+        if (device->Map(bd->pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
+            return;
+        VERTEX_CONSTANT_BUFFER_DX11* constant_buffer = (VERTEX_CONSTANT_BUFFER_DX11*)mapped_resource.pData;
+        float L = draw_data->DisplayPos.x;
+        float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+        float T = draw_data->DisplayPos.y;
+        float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+        float mvp[4][4] =
+        {
+            { 2.0f/(R-L),   0.0f,           0.0f,       0.0f },
+            { 0.0f,         2.0f/(T-B),     0.0f,       0.0f },
+            { 0.0f,         0.0f,           0.5f,       0.0f },
+            { (R+L)/(L-R),  (T+B)/(B-T),    0.5f,       1.0f },
+        };
+        memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
+        device->Unmap(bd->pVertexConstantBuffer, 0);
+    }
+
     // Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
     struct BACKUP_DX11_STATE
     {
@@ -280,7 +261,6 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     render_state.Device = bd->pd3dDevice;
     render_state.DeviceContext = bd->pd3dDeviceContext;
     render_state.SamplerDefault = bd->pFontSampler;
-    render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
     platform_io.Renderer_RenderState = &render_state;
 
     // Render command lists
@@ -288,9 +268,9 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     int global_idx_offset = 0;
     int global_vtx_offset = 0;
     ImVec2 clip_off = draw_data->DisplayPos;
-    ImVec2 clip_scale = draw_data->FramebufferScale;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
         {
             const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
@@ -306,8 +286,8 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
             else
             {
                 // Project scissor/clipping rectangles into framebuffer space
-                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
-                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -324,7 +304,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = NULL;
 
     // Restore modified DX state
     device->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
@@ -346,39 +326,21 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     device->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
 }
 
-static void ImGui_ImplDX11_DestroyTexture(ImTextureData* tex)
-{
-    ImGui_ImplDX11_Texture* backend_tex = (ImGui_ImplDX11_Texture*)tex->BackendUserData;
-    if (backend_tex == nullptr)
-        return;
-    IM_ASSERT(backend_tex->pTextureView == (ID3D11ShaderResourceView*)(intptr_t)tex->TexID);
-    backend_tex->pTextureView->Release();
-    backend_tex->pTexture->Release();
-    IM_DELETE(backend_tex);
-
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-    tex->BackendUserData = nullptr;
-}
-
-void ImGui_ImplDX11_UpdateTexture(ImTextureData* tex)
+static void ImGui_ImplDX11_CreateFontsTexture()
 {
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        unsigned int* pixels = (unsigned int*)tex->GetPixels();
-        ImGui_ImplDX11_Texture* backend_tex = IM_NEW(ImGui_ImplDX11_Texture)();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
 
-        // Create texture
+    // Upload texture to graphics system
+    {
         D3D11_TEXTURE2D_DESC desc;
         ZeroMemory(&desc, sizeof(desc));
-        desc.Width = (UINT)tex->Width;
-        desc.Height = (UINT)tex->Height;
+        desc.Width = width;
+        desc.Height = height;
         desc.MipLevels = 1;
         desc.ArraySize = 1;
         desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
@@ -386,12 +348,14 @@ void ImGui_ImplDX11_UpdateTexture(ImTextureData* tex)
         desc.Usage = D3D11_USAGE_DEFAULT;
         desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
         desc.CPUAccessFlags = 0;
+
+        ID3D11Texture2D* pTexture = nullptr;
         D3D11_SUBRESOURCE_DATA subResource;
         subResource.pSysMem = pixels;
         subResource.SysMemPitch = desc.Width * 4;
         subResource.SysMemSlicePitch = 0;
-        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &backend_tex->pTexture);
-        IM_ASSERT(backend_tex->pTexture != nullptr && "Backend failed to create texture!");
+        bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
+        IM_ASSERT(pTexture != nullptr);
 
         // Create texture view
         D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
@@ -400,29 +364,23 @@ void ImGui_ImplDX11_UpdateTexture(ImTextureData* tex)
         srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
         srvDesc.Texture2D.MipLevels = desc.MipLevels;
         srvDesc.Texture2D.MostDetailedMip = 0;
-        bd->pd3dDevice->CreateShaderResourceView(backend_tex->pTexture, &srvDesc, &backend_tex->pTextureView);
-        IM_ASSERT(backend_tex->pTextureView != nullptr && "Backend failed to create texture!");
+        bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &bd->pFontTextureView);
+        pTexture->Release();
+    }
 
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)backend_tex->pTextureView);
-        tex->SetStatus(ImTextureStatus_OK);
-        tex->BackendUserData = backend_tex;
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)bd->pFontTextureView);
+}
+
+static void ImGui_ImplDX11_DestroyFontsTexture()
+{
+    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
+    if (bd->pFontTextureView)
     {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        ImGui_ImplDX11_Texture* backend_tex = (ImGui_ImplDX11_Texture*)tex->BackendUserData;
-        IM_ASSERT(backend_tex->pTextureView == (ID3D11ShaderResourceView*)(intptr_t)tex->TexID);
-        for (ImTextureRect& r : tex->Updates)
-        {
-            D3D11_BOX box = { (UINT)r.x, (UINT)r.y, (UINT)0, (UINT)(r.x + r.w), (UINT)(r.y + r .h), (UINT)1 };
-            bd->pd3dDeviceContext->UpdateSubresource(backend_tex->pTexture, 0, &box, tex->GetPixelsAt(r.x, r.y), (UINT)tex->GetPitch(), 0);
-        }
-        tex->SetStatus(ImTextureStatus_OK);
+        bd->pFontTextureView->Release();
+        bd->pFontTextureView = nullptr;
+        ImGui::GetIO().Fonts->SetTexID(0); // We copied data->pFontTextureView to io.Fonts->TexID so let's clear that as well.
     }
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-        ImGui_ImplDX11_DestroyTexture(tex);
 }
 
 bool    ImGui_ImplDX11_CreateDeviceObjects()
@@ -430,7 +388,8 @@ bool    ImGui_ImplDX11_CreateDeviceObjects()
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
     if (!bd->pd3dDevice)
         return false;
-    ImGui_ImplDX11_InvalidateDeviceObjects();
+    if (bd->pFontSampler)
+        ImGui_ImplDX11_InvalidateDeviceObjects();
 
     // By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
     // If you would like to use this DX11 sample code but remove this dependency you can:
@@ -493,7 +452,7 @@ bool    ImGui_ImplDX11_CreateDeviceObjects()
 
         // Create the constant buffer
         {
-            D3D11_BUFFER_DESC desc = {};
+            D3D11_BUFFER_DESC desc;
             desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER_DX11);
             desc.Usage = D3D11_USAGE_DYNAMIC;
             desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
@@ -589,6 +548,8 @@ bool    ImGui_ImplDX11_CreateDeviceObjects()
         bd->pd3dDevice->CreateSamplerState(&desc, &bd->pFontSampler);
     }
 
+    ImGui_ImplDX11_CreateFontsTexture();
+
     return true;
 }
 
@@ -598,10 +559,7 @@ void    ImGui_ImplDX11_InvalidateDeviceObjects()
     if (!bd->pd3dDevice)
         return;
 
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplDX11_DestroyTexture(tex);
+    ImGui_ImplDX11_DestroyFontsTexture();
 
     if (bd->pFontSampler)           { bd->pFontSampler->Release(); bd->pFontSampler = nullptr; }
     if (bd->pIB)                    { bd->pIB->Release(); bd->pIB = nullptr; }
@@ -626,12 +584,8 @@ bool    ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_co
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_dx11";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
-
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;
     IDXGIAdapter* pDXGIAdapter = nullptr;
@@ -668,7 +622,7 @@ void ImGui_ImplDX11_Shutdown()
     if (bd->pd3dDeviceContext)    { bd->pd3dDeviceContext->Release(); }
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
 }
 
@@ -677,9 +631,8 @@ void ImGui_ImplDX11_NewFrame()
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX11_Init()?");
 
-    if (!bd->pVertexShader)
-        if (!ImGui_ImplDX11_CreateDeviceObjects())
-            IM_ASSERT(0 && "ImGui_ImplDX11_CreateDeviceObjects() failed!");
+    if (!bd->pFontSampler)
+        ImGui_ImplDX11_CreateDeviceObjects();
 }
 
 //--------------------------------------------------------------------------------------------------------
@@ -698,45 +651,37 @@ struct ImGui_ImplDX11_ViewportData
     ~ImGui_ImplDX11_ViewportData()  { IM_ASSERT(SwapChain == nullptr && RTView == nullptr); }
 };
 
-// Multi-Viewports: configure templates used when creating swapchains for secondary viewports. Will try them in order.
-// This is intentionally not declared in the .h file yet, so you will need to copy this declaration:
-void ImGui_ImplDX11_SetSwapChainDescs(const DXGI_SWAP_CHAIN_DESC* desc_templates, int desc_templates_count);
-void ImGui_ImplDX11_SetSwapChainDescs(const DXGI_SWAP_CHAIN_DESC* desc_templates, int desc_templates_count)
-{
-    ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
-    bd->SwapChainDescsForViewports.resize(desc_templates_count);
-    memcpy(bd->SwapChainDescsForViewports.Data, desc_templates, sizeof(DXGI_SWAP_CHAIN_DESC));
-}
-
 static void ImGui_ImplDX11_CreateWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
     ImGui_ImplDX11_ViewportData* vd = IM_NEW(ImGui_ImplDX11_ViewportData)();
     viewport->RendererUserData = vd;
 
-    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
     // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
     HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
     IM_ASSERT(hwnd != 0);
-    IM_ASSERT(vd->SwapChain == nullptr && vd->RTView == nullptr);
 
     // Create swap chain
-    HRESULT hr = DXGI_ERROR_UNSUPPORTED;
-    for (const DXGI_SWAP_CHAIN_DESC& sd_template : bd->SwapChainDescsForViewports)
-    {
-        IM_ASSERT(sd_template.BufferDesc.Width == 0 && sd_template.BufferDesc.Height == 0 && sd_template.OutputWindow == nullptr);
-        DXGI_SWAP_CHAIN_DESC sd = sd_template;
-        sd.BufferDesc.Width = (UINT)viewport->Size.x;
-        sd.BufferDesc.Height = (UINT)viewport->Size.y;
-        sd.OutputWindow = hwnd;
-        hr = bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
-        if (SUCCEEDED(hr))
-            break;
-    }
-    IM_ASSERT(SUCCEEDED(hr));
+    DXGI_SWAP_CHAIN_DESC sd;
+    ZeroMemory(&sd, sizeof(sd));
+    sd.BufferDesc.Width = (UINT)viewport->Size.x;
+    sd.BufferDesc.Height = (UINT)viewport->Size.y;
+    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+    sd.SampleDesc.Count = 1;
+    sd.SampleDesc.Quality = 0;
+    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+    sd.BufferCount = 1;
+    sd.OutputWindow = hwnd;
+    sd.Windowed = TRUE;
+    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+    sd.Flags = 0;
+
+    IM_ASSERT(vd->SwapChain == nullptr && vd->RTView == nullptr);
+    bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
 
     // Create the render target
-    if (vd->SwapChain != nullptr)
+    if (vd->SwapChain)
     {
         ID3D11Texture2D* pBackBuffer;
         vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
@@ -806,19 +751,6 @@ static void ImGui_ImplDX11_InitMultiViewportSupport()
     platform_io.Renderer_SetWindowSize = ImGui_ImplDX11_SetWindowSize;
     platform_io.Renderer_RenderWindow = ImGui_ImplDX11_RenderWindow;
     platform_io.Renderer_SwapBuffers = ImGui_ImplDX11_SwapBuffers;
-
-    // Default swapchain format
-    DXGI_SWAP_CHAIN_DESC sd;
-    ZeroMemory(&sd, sizeof(sd));
-    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
-    sd.SampleDesc.Count = 1;
-    sd.SampleDesc.Quality = 0;
-    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
-    sd.BufferCount = 1;
-    sd.Windowed = TRUE;
-    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
-    sd.Flags = 0;
-    ImGui_ImplDX11_SetSwapChainDescs(&sd, 1);
 }
 
 static void ImGui_ImplDX11_ShutdownMultiViewportSupport()

backends/imgui_impl_dx11.h

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
@@ -23,7 +22,6 @@
 struct ID3D11Device;
 struct ID3D11DeviceContext;
 struct ID3D11SamplerState;
-struct ID3D11Buffer;
 
 // Follow "Getting Started" link and check examples/ folder to learn about using backends!
 IMGUI_IMPL_API bool     ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
@@ -35,9 +33,6 @@ IMGUI_IMPL_API void     ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX11_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX11_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplDX11_UpdateTexture(ImTextureData* tex);
-
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX11_RenderDrawData() call.
 // (Please open an issue if you feel you need access to more data)
@@ -46,7 +41,6 @@ struct ImGui_ImplDX11_RenderState
     ID3D11Device*           Device;
     ID3D11DeviceContext*    DeviceContext;
     ID3D11SamplerState*     SamplerDefault;
-    ID3D11Buffer*           VertexConstantBuffer;
 };
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx12.cpp

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //      FIXME: The transition from removing a viewport and moving the window in an existing hosted viewport tends to flicker.
@@ -22,13 +21,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-19: Fixed build on MinGW. (#8702, #4594)
-//  2025-06-11: DirectX12: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
-//  2025-05-07: DirectX12: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
-//  2025-02-24: DirectX12: Fixed an issue where ImGui_ImplDX12_Init() signature change from 2024-11-15 combined with change from 2025-01-15 made legacy ImGui_ImplDX12_Init() crash. (#8429)
-//  2025-01-15: DirectX12: Texture upload use the command queue provided in ImGui_ImplDX12_InitInfo instead of creating its own.
-//  2024-12-09: DirectX12: Let user specifies the DepthStencilView format by setting ImGui_ImplDX12_InitInfo::DSVFormat.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-11-15: DirectX12: *BREAKING CHANGE* Changed ImGui_ImplDX12_Init() signature to take a ImGui_ImplDX12_InitInfo struct. Legacy ImGui_ImplDX12_Init() signature is still supported (will obsolete).
 //  2024-11-15: DirectX12: *BREAKING CHANGE* User is now required to pass function pointers to allocate/free SRV Descriptors. We provide convenience legacy fields to pass a single descriptor, matching the old API, but upcoming features will want multiple.
 //  2024-10-23: DirectX12: Unmap() call specify written range. The range is informational and may be used by debug tools.
@@ -65,15 +58,6 @@
 #pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
 #endif
 
-// Clang/GCC warnings with -Weverything
-#if defined(__clang__)
-#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
-#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
-#endif
-
-// MinGW workaround, see #4594
-typedef decltype(D3D12SerializeRootSignature) *_PFN_D3D12_SERIALIZE_ROOT_SIGNATURE;
-
 // DirectX12 data
 struct ImGui_ImplDX12_RenderBuffers;
 
@@ -92,10 +76,7 @@ struct ImGui_ImplDX12_Data
     ID3D12Device*               pd3dDevice;
     ID3D12RootSignature*        pRootSignature;
     ID3D12PipelineState*        pPipelineState;
-    ID3D12CommandQueue*         pCommandQueue;
-    bool                        commandQueueOwned;
     DXGI_FORMAT                 RTVFormat;
-    DXGI_FORMAT                 DSVFormat;
     ID3D12DescriptorHeap*       pd3dSrvDescHeap;
     UINT                        numFramesInFlight;
     ImGui_ImplDX12_Texture      FontTexture;
@@ -226,9 +207,10 @@ static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12Graphic
     }
 
     // Setup viewport
-    D3D12_VIEWPORT vp = {};
-    vp.Width = draw_data->DisplaySize.x * draw_data->FramebufferScale.x;
-    vp.Height = draw_data->DisplaySize.y * draw_data->FramebufferScale.y;
+    D3D12_VIEWPORT vp;
+    memset(&vp, 0, sizeof(D3D12_VIEWPORT));
+    vp.Width = draw_data->DisplaySize.x;
+    vp.Height = draw_data->DisplaySize.y;
     vp.MinDepth = 0.0f;
     vp.MaxDepth = 1.0f;
     vp.TopLeftX = vp.TopLeftY = 0.0f;
@@ -237,12 +219,14 @@ static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12Graphic
     // Bind shader and vertex buffers
     unsigned int stride = sizeof(ImDrawVert);
     unsigned int offset = 0;
-    D3D12_VERTEX_BUFFER_VIEW vbv = {};
+    D3D12_VERTEX_BUFFER_VIEW vbv;
+    memset(&vbv, 0, sizeof(D3D12_VERTEX_BUFFER_VIEW));
     vbv.BufferLocation = fr->VertexBuffer->GetGPUVirtualAddress() + offset;
     vbv.SizeInBytes = fr->VertexBufferSize * stride;
     vbv.StrideInBytes = stride;
     command_list->IASetVertexBuffers(0, 1, &vbv);
-    D3D12_INDEX_BUFFER_VIEW ibv = {};
+    D3D12_INDEX_BUFFER_VIEW ibv;
+    memset(&ibv, 0, sizeof(D3D12_INDEX_BUFFER_VIEW));
     ibv.BufferLocation = fr->IndexBuffer->GetGPUVirtualAddress();
     ibv.SizeInBytes = fr->IndexBufferSize * sizeof(ImDrawIdx);
     ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
@@ -272,14 +256,6 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
     if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
         return;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplDX12_UpdateTexture(tex);
-
-    // FIXME: We are assuming that this only gets called once per frame!
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     ImGui_ImplDX12_ViewportData* vd = (ImGui_ImplDX12_ViewportData*)draw_data->OwnerViewport->RendererUserData;
     vd->FrameIndex++;
@@ -290,11 +266,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
     {
         SafeRelease(fr->VertexBuffer);
         fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
-        D3D12_HEAP_PROPERTIES props = {};
+        D3D12_HEAP_PROPERTIES props;
+        memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
         props.Type = D3D12_HEAP_TYPE_UPLOAD;
         props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
         props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
-        D3D12_RESOURCE_DESC desc = {};
+        D3D12_RESOURCE_DESC desc;
+        memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
         desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
         desc.Width = fr->VertexBufferSize * sizeof(ImDrawVert);
         desc.Height = 1;
@@ -311,11 +289,13 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
     {
         SafeRelease(fr->IndexBuffer);
         fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
-        D3D12_HEAP_PROPERTIES props = {};
+        D3D12_HEAP_PROPERTIES props;
+        memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
         props.Type = D3D12_HEAP_TYPE_UPLOAD;
         props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
         props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
-        D3D12_RESOURCE_DESC desc = {};
+        D3D12_RESOURCE_DESC desc;
+        memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
         desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
         desc.Width = fr->IndexBufferSize * sizeof(ImDrawIdx);
         desc.Height = 1;
@@ -339,8 +319,9 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
         return;
     ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource;
     ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
         memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
         vtx_dst += draw_list->VtxBuffer.Size;
@@ -370,9 +351,9 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
     int global_vtx_offset = 0;
     int global_idx_offset = 0;
     ImVec2 clip_off = draw_data->DisplayPos;
-    ImVec2 clip_scale = draw_data->FramebufferScale;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
         {
             const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
@@ -388,8 +369,8 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
             else
             {
                 // Project scissor/clipping rectangles into framebuffer space
-                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
-                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+                ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -407,43 +388,23 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = NULL;
 }
 
-static void ImGui_ImplDX12_DestroyTexture(ImTextureData* tex)
+static void ImGui_ImplDX12_CreateFontsTexture()
 {
-    ImGui_ImplDX12_Texture* backend_tex = (ImGui_ImplDX12_Texture*)tex->BackendUserData;
-    if (backend_tex == nullptr)
-        return;
-    IM_ASSERT(backend_tex->hFontSrvGpuDescHandle.ptr == (UINT64)tex->TexID);
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-    bd->InitInfo.SrvDescriptorFreeFn(&bd->InitInfo, backend_tex->hFontSrvCpuDescHandle, backend_tex->hFontSrvGpuDescHandle);
-    SafeRelease(backend_tex->pTextureResource);
-    backend_tex->hFontSrvCpuDescHandle.ptr = 0;
-    backend_tex->hFontSrvGpuDescHandle.ptr = 0;
-    IM_DELETE(backend_tex);
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
 
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-    tex->BackendUserData = nullptr;
-}
-
-void ImGui_ImplDX12_UpdateTexture(ImTextureData* tex)
-{
-    ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-    bool need_barrier_before_copy = true; // Do we need a resource barrier before we copy new data in?
-
-    if (tex->Status == ImTextureStatus_WantCreate)
+    // Upload texture to graphics system
+    ImGui_ImplDX12_Texture* font_tex = &bd->FontTexture;
     {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        ImGui_ImplDX12_Texture* backend_tex = IM_NEW(ImGui_ImplDX12_Texture)();
-        bd->InitInfo.SrvDescriptorAllocFn(&bd->InitInfo, &backend_tex->hFontSrvCpuDescHandle, &backend_tex->hFontSrvGpuDescHandle); // Allocate a desctriptor handle
-
-        D3D12_HEAP_PROPERTIES props = {};
+        D3D12_HEAP_PROPERTIES props;
+        memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
         props.Type = D3D12_HEAP_TYPE_DEFAULT;
         props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
         props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
@@ -452,8 +413,8 @@ void ImGui_ImplDX12_UpdateTexture(ImTextureData* tex)
         ZeroMemory(&desc, sizeof(desc));
         desc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
         desc.Alignment = 0;
-        desc.Width = tex->Width;
-        desc.Height = tex->Height;
+        desc.Width = width;
+        desc.Height = height;
         desc.DepthOrArraySize = 1;
         desc.MipLevels = 1;
         desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
@@ -466,50 +427,11 @@ void ImGui_ImplDX12_UpdateTexture(ImTextureData* tex)
         bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
             D3D12_RESOURCE_STATE_COPY_DEST, nullptr, IID_PPV_ARGS(&pTexture));
 
-        // Create SRV
-        D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc;
-        ZeroMemory(&srvDesc, sizeof(srvDesc));
-        srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
-        srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
-        srvDesc.Texture2D.MipLevels = desc.MipLevels;
-        srvDesc.Texture2D.MostDetailedMip = 0;
-        srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
-        bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, backend_tex->hFontSrvCpuDescHandle);
-        SafeRelease(backend_tex->pTextureResource);
-        backend_tex->pTextureResource = pTexture;
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)backend_tex->hFontSrvGpuDescHandle.ptr);
-        tex->BackendUserData = backend_tex;
-        need_barrier_before_copy = false; // Because this is a newly-created texture it will be in D3D12_RESOURCE_STATE_COMMON and thus we don't need a barrier
-        // We don't set tex->Status to ImTextureStatus_OK to let the code fallthrough below.
-    }
-
-    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
-    {
-        ImGui_ImplDX12_Texture* backend_tex = (ImGui_ImplDX12_Texture*)tex->BackendUserData;
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // We could use the smaller rect on _WantCreate but using the full rect allows us to clear the texture.
-        // FIXME-OPT: Uploading single box even when using ImTextureStatus_WantUpdates. Could use tex->Updates[]
-        // - Copy all blocks contiguously in upload buffer.
-        // - Barrier before copy, submit all CopyTextureRegion(), barrier after copy.
-        const int upload_x = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.x;
-        const int upload_y = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.y;
-        const int upload_w = (tex->Status == ImTextureStatus_WantCreate) ? tex->Width : tex->UpdateRect.w;
-        const int upload_h = (tex->Status == ImTextureStatus_WantCreate) ? tex->Height : tex->UpdateRect.h;
-
-        // Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
-        UINT upload_pitch_src = upload_w * tex->BytesPerPixel;
-        UINT upload_pitch_dst = (upload_pitch_src + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
-        UINT upload_size = upload_pitch_dst * upload_h;
-
-        D3D12_RESOURCE_DESC desc;
-        ZeroMemory(&desc, sizeof(desc));
+        UINT uploadPitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
+        UINT uploadSize = height * uploadPitch;
         desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
         desc.Alignment = 0;
-        desc.Width = upload_size;
+        desc.Width = uploadSize;
         desc.Height = 1;
         desc.DepthOrArraySize = 1;
         desc.MipLevels = 1;
@@ -519,109 +441,104 @@ void ImGui_ImplDX12_UpdateTexture(ImTextureData* tex)
         desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
         desc.Flags = D3D12_RESOURCE_FLAG_NONE;
 
-        D3D12_HEAP_PROPERTIES props;
-        memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
         props.Type = D3D12_HEAP_TYPE_UPLOAD;
         props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
         props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
 
-        // FIXME-OPT: Can upload buffer be reused?
         ID3D12Resource* uploadBuffer = nullptr;
         HRESULT hr = bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
             D3D12_RESOURCE_STATE_GENERIC_READ, nullptr, IID_PPV_ARGS(&uploadBuffer));
         IM_ASSERT(SUCCEEDED(hr));
 
-        // Create temporary command list and execute immediately
+        void* mapped = nullptr;
+        D3D12_RANGE range = { 0, uploadSize };
+        hr = uploadBuffer->Map(0, &range, &mapped);
+        IM_ASSERT(SUCCEEDED(hr));
+        for (int y = 0; y < height; y++)
+            memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
+        uploadBuffer->Unmap(0, &range);
+
+        D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
+        srcLocation.pResource = uploadBuffer;
+        srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
+        srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srcLocation.PlacedFootprint.Footprint.Width = width;
+        srcLocation.PlacedFootprint.Footprint.Height = height;
+        srcLocation.PlacedFootprint.Footprint.Depth = 1;
+        srcLocation.PlacedFootprint.Footprint.RowPitch = uploadPitch;
+
+        D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
+        dstLocation.pResource = pTexture;
+        dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+        dstLocation.SubresourceIndex = 0;
+
+        D3D12_RESOURCE_BARRIER barrier = {};
+        barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+        barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+        barrier.Transition.pResource   = pTexture;
+        barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
+        barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
+        barrier.Transition.StateAfter  = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
+
         ID3D12Fence* fence = nullptr;
         hr = bd->pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&fence));
         IM_ASSERT(SUCCEEDED(hr));
 
-        HANDLE event = ::CreateEvent(0, 0, 0, 0);
+        HANDLE event = CreateEvent(0, 0, 0, 0);
         IM_ASSERT(event != nullptr);
 
-        // FIXME-OPT: Create once and reuse?
+        D3D12_COMMAND_QUEUE_DESC queueDesc = {};
+        queueDesc.Type     = D3D12_COMMAND_LIST_TYPE_DIRECT;
+        queueDesc.Flags    = D3D12_COMMAND_QUEUE_FLAG_NONE;
+        queueDesc.NodeMask = 1;
+
+        ID3D12CommandQueue* cmdQueue = nullptr;
+        hr = bd->pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
+        IM_ASSERT(SUCCEEDED(hr));
+
         ID3D12CommandAllocator* cmdAlloc = nullptr;
         hr = bd->pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
         IM_ASSERT(SUCCEEDED(hr));
 
-        // FIXME-OPT: Can be use the one from user? (pass ID3D12GraphicsCommandList* to ImGui_ImplDX12_UpdateTextures)
         ID3D12GraphicsCommandList* cmdList = nullptr;
         hr = bd->pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, cmdAlloc, nullptr, IID_PPV_ARGS(&cmdList));
         IM_ASSERT(SUCCEEDED(hr));
 
-        // Copy to upload buffer
-        void* mapped = nullptr;
-        D3D12_RANGE range = { 0, upload_size };
-        hr = uploadBuffer->Map(0, &range, &mapped);
-        IM_ASSERT(SUCCEEDED(hr));
-        for (int y = 0; y < upload_h; y++)
-            memcpy((void*)((uintptr_t)mapped + y * upload_pitch_dst), tex->GetPixelsAt(upload_x, upload_y + y), upload_pitch_src);
-        uploadBuffer->Unmap(0, &range);
-
-        if (need_barrier_before_copy)
-        {
-            D3D12_RESOURCE_BARRIER barrier = {};
-            barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
-            barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
-            barrier.Transition.pResource = backend_tex->pTextureResource;
-            barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
-            barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
-            barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_COPY_DEST;
-            cmdList->ResourceBarrier(1, &barrier);
-        }
-
-        D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
-        D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
-        {
-            srcLocation.pResource = uploadBuffer;
-            srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
-            srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
-            srcLocation.PlacedFootprint.Footprint.Width = upload_w;
-            srcLocation.PlacedFootprint.Footprint.Height = upload_h;
-            srcLocation.PlacedFootprint.Footprint.Depth = 1;
-            srcLocation.PlacedFootprint.Footprint.RowPitch = upload_pitch_dst;
-            dstLocation.pResource = backend_tex->pTextureResource;
-            dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
-            dstLocation.SubresourceIndex = 0;
-        }
-        cmdList->CopyTextureRegion(&dstLocation, upload_x, upload_y, 0, &srcLocation, nullptr);
-
-        {
-            D3D12_RESOURCE_BARRIER barrier = {};
-            barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
-            barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
-            barrier.Transition.pResource = backend_tex->pTextureResource;
-            barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
-            barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
-            barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
-            cmdList->ResourceBarrier(1, &barrier);
-        }
+        cmdList->CopyTextureRegion(&dstLocation, 0, 0, 0, &srcLocation, nullptr);
+        cmdList->ResourceBarrier(1, &barrier);
 
         hr = cmdList->Close();
         IM_ASSERT(SUCCEEDED(hr));
 
-        ID3D12CommandQueue* cmdQueue = bd->pCommandQueue;
         cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&cmdList);
         hr = cmdQueue->Signal(fence, 1);
         IM_ASSERT(SUCCEEDED(hr));
 
-        // FIXME-OPT: Suboptimal?
-        // - To remove this may need to create NumFramesInFlight x ImGui_ImplDX12_FrameContext in backend data (mimick docking version)
-        // - Store per-frame in flight: upload buffer?
-        // - Where do cmdList and cmdAlloc fit?
         fence->SetEventOnCompletion(1, event);
-        ::WaitForSingleObject(event, INFINITE);
+        WaitForSingleObject(event, INFINITE);
 
         cmdList->Release();
         cmdAlloc->Release();
-        ::CloseHandle(event);
+        cmdQueue->Release();
+        CloseHandle(event);
         fence->Release();
         uploadBuffer->Release();
-        tex->SetStatus(ImTextureStatus_OK);
+
+        // Create texture view
+        D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc;
+        ZeroMemory(&srvDesc, sizeof(srvDesc));
+        srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+        srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
+        srvDesc.Texture2D.MipLevels = desc.MipLevels;
+        srvDesc.Texture2D.MostDetailedMip = 0;
+        srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
+        bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, font_tex->hFontSrvCpuDescHandle);
+        SafeRelease(font_tex->pTextureResource);
+        font_tex->pTextureResource = pTexture;
     }
 
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames >= (int)bd->numFramesInFlight)
-        ImGui_ImplDX12_DestroyTexture(tex);
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)font_tex->hFontSrvGpuDescHandle.ptr);
 }
 
 bool    ImGui_ImplDX12_CreateDeviceObjects()
@@ -665,7 +582,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         staticSampler.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
         staticSampler.BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
         staticSampler.MinLOD = 0.f;
-        staticSampler.MaxLOD = D3D12_FLOAT32_MAX;
+        staticSampler.MaxLOD = 0.f;
         staticSampler.ShaderRegister = 0;
         staticSampler.RegisterSpace = 0;
         staticSampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
@@ -703,7 +620,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
                 return false;
         }
 
-        _PFN_D3D12_SERIALIZE_ROOT_SIGNATURE D3D12SerializeRootSignatureFn = (_PFN_D3D12_SERIALIZE_ROOT_SIGNATURE)(void*)::GetProcAddress(d3d12_dll, "D3D12SerializeRootSignature");
+        PFN_D3D12_SERIALIZE_ROOT_SIGNATURE D3D12SerializeRootSignatureFn = (PFN_D3D12_SERIALIZE_ROOT_SIGNATURE)::GetProcAddress(d3d12_dll, "D3D12SerializeRootSignature");
         if (D3D12SerializeRootSignatureFn == nullptr)
             return false;
 
@@ -721,14 +638,14 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
     //  2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
     // See https://github.com/ocornut/imgui/pull/638 for sources and details.
 
-    D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = {};
+    D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc;
+    memset(&psoDesc, 0, sizeof(D3D12_GRAPHICS_PIPELINE_STATE_DESC));
     psoDesc.NodeMask = 1;
     psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
     psoDesc.pRootSignature = bd->pRootSignature;
     psoDesc.SampleMask = UINT_MAX;
     psoDesc.NumRenderTargets = 1;
     psoDesc.RTVFormats[0] = bd->RTVFormat;
-    psoDesc.DSVFormat = bd->DSVFormat;
     psoDesc.SampleDesc.Count = 1;
     psoDesc.Flags = D3D12_PIPELINE_STATE_FLAG_NONE;
 
@@ -853,6 +770,8 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
     if (result_pipeline_state != S_OK)
         return false;
 
+    ImGui_ImplDX12_CreateFontsTexture();
+
     return true;
 }
 
@@ -869,40 +788,17 @@ void    ImGui_ImplDX12_InvalidateDeviceObjects()
     if (!bd || !bd->pd3dDevice)
         return;
 
-    if (bd->commandQueueOwned)
-        SafeRelease(bd->pCommandQueue);
-    bd->commandQueueOwned = false;
+    ImGuiIO& io = ImGui::GetIO();
     SafeRelease(bd->pRootSignature);
     SafeRelease(bd->pPipelineState);
 
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplDX12_DestroyTexture(tex);
+    // Free SRV descriptor used by texture
+    ImGui_ImplDX12_Texture* font_tex = &bd->FontTexture;
+    bd->InitInfo.SrvDescriptorFreeFn(&bd->InitInfo, font_tex->hFontSrvCpuDescHandle, font_tex->hFontSrvGpuDescHandle);
+    SafeRelease(font_tex->pTextureResource);
+    io.Fonts->SetTexID(0); // We copied bd->hFontSrvGpuDescHandle to io.Fonts->TexID so let's clear that as well.
 }
 
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-static void ImGui_ImplDX12_InitLegacySingleDescriptorMode(ImGui_ImplDX12_InitInfo* init_info)
-{
-    // Wrap legacy behavior of passing space for a single descriptor
-    IM_ASSERT(init_info->LegacySingleSrvCpuDescriptor.ptr != 0 && init_info->LegacySingleSrvGpuDescriptor.ptr != 0);
-    init_info->SrvDescriptorAllocFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_handle)
-    {
-        ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-        IM_ASSERT(bd->LegacySingleDescriptorUsed == false && "Only 1 simultaneous texture allowed with legacy ImGui_ImplDX12_Init() signature!");
-        *out_cpu_handle = bd->InitInfo.LegacySingleSrvCpuDescriptor;
-        *out_gpu_handle = bd->InitInfo.LegacySingleSrvGpuDescriptor;
-        bd->LegacySingleDescriptorUsed = true;
-    };
-    init_info->SrvDescriptorFreeFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE, D3D12_GPU_DESCRIPTOR_HANDLE)
-    {
-        ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-        IM_ASSERT(bd->LegacySingleDescriptorUsed == true);
-        bd->LegacySingleDescriptorUsed = false;
-    };
-}
-#endif
-
 bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
 {
     ImGuiIO& io = ImGui::GetIO();
@@ -915,19 +811,14 @@ bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
     init_info = &bd->InitInfo;
 
     bd->pd3dDevice = init_info->Device;
-    IM_ASSERT(init_info->CommandQueue != NULL);
-    bd->pCommandQueue = init_info->CommandQueue;
     bd->RTVFormat = init_info->RTVFormat;
-    bd->DSVFormat = init_info->DSVFormat;
     bd->numFramesInFlight = init_info->NumFramesInFlight;
     bd->pd3dSrvDescHeap = init_info->SrvDescriptorHeap;
 
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_dx12";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
-
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
         ImGui_ImplDX12_InitPlatformInterface();
 
@@ -937,10 +828,30 @@ bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
     main_viewport->RendererUserData = IM_NEW(ImGui_ImplDX12_ViewportData)(bd->numFramesInFlight);
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    if (init_info->SrvDescriptorAllocFn == nullptr)
-        ImGui_ImplDX12_InitLegacySingleDescriptorMode(init_info);
+    if (init_info->SrvDescriptorAllocFn == NULL)
+    {
+        // Wrap legacy behavior of passing space for a single descriptor
+        IM_ASSERT(init_info->LegacySingleSrvCpuDescriptor.ptr != 0 && init_info->LegacySingleSrvGpuDescriptor.ptr != 0);
+        init_info->SrvDescriptorAllocFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_handle)
+        {
+            ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+            IM_ASSERT(bd->LegacySingleDescriptorUsed == false);
+            *out_cpu_handle = bd->InitInfo.LegacySingleSrvCpuDescriptor;
+            *out_gpu_handle = bd->InitInfo.LegacySingleSrvGpuDescriptor;
+            bd->LegacySingleDescriptorUsed = true;
+        };
+        init_info->SrvDescriptorFreeFn = [](ImGui_ImplDX12_InitInfo*, D3D12_CPU_DESCRIPTOR_HANDLE, D3D12_GPU_DESCRIPTOR_HANDLE)
+        {
+            ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+            IM_ASSERT(bd->LegacySingleDescriptorUsed == true);
+            bd->LegacySingleDescriptorUsed = false;
+        };
+    }
 #endif
-    IM_ASSERT(init_info->SrvDescriptorAllocFn != nullptr && init_info->SrvDescriptorFreeFn != nullptr);
+
+    // Allocate 1 SRV descriptor for the font texture
+    IM_ASSERT(init_info->SrvDescriptorAllocFn != NULL && init_info->SrvDescriptorFreeFn != NULL);
+    init_info->SrvDescriptorAllocFn(&bd->InitInfo, &bd->FontTexture.hFontSrvCpuDescHandle, &bd->FontTexture.hFontSrvGpuDescHandle);
 
     return true;
 }
@@ -956,22 +867,8 @@ bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FO
     init_info.RTVFormat = rtv_format;
     init_info.SrvDescriptorHeap = srv_descriptor_heap;
     init_info.LegacySingleSrvCpuDescriptor = font_srv_cpu_desc_handle;
-    init_info.LegacySingleSrvGpuDescriptor = font_srv_gpu_desc_handle;
-
-    D3D12_COMMAND_QUEUE_DESC queueDesc = {};
-    queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
-    queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
-    queueDesc.NodeMask = 1;
-    HRESULT hr = device->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&init_info.CommandQueue));
-    IM_ASSERT(SUCCEEDED(hr));
-
-    bool ret = ImGui_ImplDX12_Init(&init_info);
-    ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-    bd->commandQueueOwned = true;
-    ImGuiIO& io = ImGui::GetIO();
-    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasTextures; // Using legacy ImGui_ImplDX12_Init() call with 1 SRV descriptor we cannot support multiple textures.
-
-    return ret;
+    init_info.LegacySingleSrvGpuDescriptor = font_srv_gpu_desc_handle;;
+    return ImGui_ImplDX12_Init(&init_info);
 }
 #endif
 
@@ -998,7 +895,7 @@ void ImGui_ImplDX12_Shutdown()
 
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
 }
 
@@ -1008,8 +905,7 @@ void ImGui_ImplDX12_NewFrame()
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX12_Init()?");
 
     if (!bd->pPipelineState)
-        if (!ImGui_ImplDX12_CreateDeviceObjects())
-            IM_ASSERT(0 && "ImGui_ImplDX12_CreateDeviceObjects() failed!");
+        ImGui_ImplDX12_CreateDeviceObjects();
 }
 
 //--------------------------------------------------------------------------------------------------------
@@ -1024,7 +920,7 @@ static void ImGui_ImplDX12_CreateWindow(ImGuiViewport* viewport)
     ImGui_ImplDX12_ViewportData* vd = IM_NEW(ImGui_ImplDX12_ViewportData)(bd->numFramesInFlight);
     viewport->RendererUserData = vd;
 
-    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
     // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
     HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
     IM_ASSERT(hwnd != 0);
@@ -1213,7 +1109,7 @@ static void ImGui_ImplDX12_RenderWindow(ImGuiViewport* viewport, void*)
     cmd_list->ResourceBarrier(1, &barrier);
     cmd_list->OMSetRenderTargets(1, &vd->FrameCtx[back_buffer_idx].RenderTargetCpuDescriptors, FALSE, nullptr);
     if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
-        cmd_list->ClearRenderTargetView(vd->FrameCtx[back_buffer_idx].RenderTargetCpuDescriptors, (const float*)&clear_color, 0, nullptr);
+        cmd_list->ClearRenderTargetView(vd->FrameCtx[back_buffer_idx].RenderTargetCpuDescriptors, (float*)&clear_color, 0, nullptr);
     cmd_list->SetDescriptorHeaps(1, &bd->pd3dSrvDescHeap);
 
     ImGui_ImplDX12_RenderDrawData(viewport->DrawData, cmd_list);

backends/imgui_impl_dx12.h

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
@@ -29,14 +28,13 @@
 struct ImGui_ImplDX12_InitInfo
 {
     ID3D12Device*               Device;
-    ID3D12CommandQueue*         CommandQueue;       // Command queue used for queuing texture uploads.
+    ID3D12CommandQueue*         CommandQueue;
     int                         NumFramesInFlight;
-    DXGI_FORMAT                 RTVFormat;          // RenderTarget format.
-    DXGI_FORMAT                 DSVFormat;          // DepthStencilView format.
+    DXGI_FORMAT                 RTVFormat;
     void*                       UserData;
 
     // Allocating SRV descriptors for textures is up to the application, so we provide callbacks.
-    // (current version of the backend will only allocate one descriptor, from 1.92 the backend will need to allocate more)
+    // (current version of the backend will only allocate one descriptor, future versions will need to allocate more)
     ID3D12DescriptorHeap*       SrvDescriptorHeap;
     void                        (*SrvDescriptorAllocFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_desc_handle);
     void                        (*SrvDescriptorFreeFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE gpu_desc_handle);
@@ -45,7 +43,7 @@ struct ImGui_ImplDX12_InitInfo
     D3D12_GPU_DESCRIPTOR_HANDLE LegacySingleSrvGpuDescriptor;
 #endif
 
-    ImGui_ImplDX12_InitInfo()   { memset((void*)this, 0, sizeof(*this)); }
+    ImGui_ImplDX12_InitInfo()   { memset(this, 0, sizeof(*this)); }
 };
 
 // Follow "Getting Started" link and check examples/ folder to learn about using backends!
@@ -56,8 +54,7 @@ IMGUI_IMPL_API void     ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 // Legacy initialization API Obsoleted in 1.91.5
-// - font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture, they must be in 'srv_descriptor_heap'
-// - When we introduced the ImGui_ImplDX12_InitInfo struct we also added a 'ID3D12CommandQueue* CommandQueue' field.
+// font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture, they must be in 'srv_descriptor_heap'
 IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* srv_descriptor_heap, D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
 #endif
 
@@ -65,9 +62,6 @@ IMGUI_IMPL_API bool     ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames
 IMGUI_IMPL_API bool     ImGui_ImplDX12_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX12_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplDX12_UpdateTexture(ImTextureData* tex);
-
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX12_RenderDrawData() call.
 // (Please open an issue if you feel you need access to more data)

backends/imgui_impl_dx9.cpp

@@ -2,10 +2,9 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR support, as this is the optimal color encoding for DirectX9.
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
+//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR is supported, as this is the optimal color encoding for DirectX9.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -18,8 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-11: DirectX9: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-07: DirectX9: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2024-02-12: DirectX9: Using RGBA format when supported by the driver to avoid CPU side conversion. (#6575)
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
@@ -48,18 +46,13 @@
 // DirectX
 #include <d3d9.h>
 
-// Clang/GCC warnings with -Weverything
-#if defined(__clang__)
-#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast                            // yes, they are more terse.
-#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
-#endif
-
 // DirectX data
 struct ImGui_ImplDX9_Data
 {
     LPDIRECT3DDEVICE9           pd3dDevice;
     LPDIRECT3DVERTEXBUFFER9     pVB;
     LPDIRECT3DINDEXBUFFER9      pIB;
+    LPDIRECT3DTEXTURE9          FontTexture;
     int                         VertexBufferSize;
     int                         IndexBufferSize;
     bool                        HasRgbaSupport;
@@ -178,13 +171,6 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
     LPDIRECT3DDEVICE9 device = bd->pd3dDevice;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplDX9_UpdateTexture(tex);
-
     // Create and grow buffers if needed
     if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
     {
@@ -236,8 +222,9 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
     // FIXME-OPT: This is a minor waste of resource, the ideal is to use imconfig.h and
     //  1) to avoid repacking colors:   #define IMGUI_USE_BGRA_PACKED_COLOR
     //  2) to avoid repacking vertices: #define IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT struct ImDrawVert { ImVec2 pos; float z; ImU32 col; ImVec2 uv; }
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_src = draw_list->VtxBuffer.Data;
         for (int i = 0; i < draw_list->VtxBuffer.Size; i++)
         {
@@ -267,8 +254,9 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
     int global_vtx_offset = 0;
     int global_idx_offset = 0;
     ImVec2 clip_off = draw_data->DisplayPos;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
         {
             const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
@@ -347,12 +335,8 @@ bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_dx9";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = 4096;
-
     bd->pd3dDevice = device;
     bd->pd3dDevice->AddRef();
     bd->HasRgbaSupport = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
@@ -373,12 +357,12 @@ void ImGui_ImplDX9_Shutdown()
     if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
 }
 
 // Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
-static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* src, int src_pitch, ImU32* dst, int dst_pitch, int w, int h)
+static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, ImU32* src, int src_pitch, ImU32* dst, int dst_pitch, int w, int h)
 {
 #ifndef IMGUI_USE_BGRA_PACKED_COLOR
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
@@ -389,8 +373,8 @@ static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* sr
 #endif
     for (int y = 0; y < h; y++)
     {
-        const ImU32* src_p = (const ImU32*)(const void*)((const unsigned char*)src + src_pitch * y);
-        ImU32* dst_p = (ImU32*)(void*)((unsigned char*)dst + dst_pitch * y);
+        ImU32* src_p = (ImU32*)((unsigned char*)src + src_pitch * y);
+        ImU32* dst_p = (ImU32*)((unsigned char*)dst + dst_pitch * y);
         if (convert_rgba_to_bgra)
             for (int x = w; x > 0; x--, src_p++, dst_p++) // Convert copy
                 *dst_p = IMGUI_COL_TO_DX9_ARGB(*src_p);
@@ -399,61 +383,28 @@ static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* sr
     }
 }
 
-void ImGui_ImplDX9_UpdateTexture(ImTextureData* tex)
+static bool ImGui_ImplDX9_CreateFontsTexture()
 {
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    unsigned char* pixels;
+    int width, height, bytes_per_pixel;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &bytes_per_pixel);
 
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        LPDIRECT3DTEXTURE9 dx_tex = nullptr;
-        HRESULT hr = bd->pd3dDevice->CreateTexture(tex->Width, tex->Height, 1, D3DUSAGE_DYNAMIC, bd->HasRgbaSupport ? D3DFMT_A8B8G8R8 : D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &dx_tex, nullptr);
-        if (hr < 0)
-        {
-            IM_ASSERT(hr >= 0 && "Backend failed to create texture!");
-            return;
-        }
+    // Upload texture to graphics system
+    bd->FontTexture = nullptr;
+    if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, bd->HasRgbaSupport ? D3DFMT_A8B8G8R8 : D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, nullptr) < 0)
+        return false;
+    D3DLOCKED_RECT tex_locked_rect;
+    if (bd->FontTexture->LockRect(0, &tex_locked_rect, nullptr, 0) != D3D_OK)
+        return false;
+    ImGui_ImplDX9_CopyTextureRegion(io.Fonts->TexPixelsUseColors, (ImU32*)pixels, width * bytes_per_pixel, (ImU32*)tex_locked_rect.pBits, (int)tex_locked_rect.Pitch, width, height);
+    bd->FontTexture->UnlockRect(0);
 
-        D3DLOCKED_RECT locked_rect;
-        if (dx_tex->LockRect(0, &locked_rect, nullptr, 0) == D3D_OK)
-        {
-            ImGui_ImplDX9_CopyTextureRegion(tex->UseColors, (ImU32*)tex->GetPixels(), tex->Width * 4, (ImU32*)locked_rect.pBits, (ImU32)locked_rect.Pitch, tex->Width, tex->Height);
-            dx_tex->UnlockRect(0);
-        }
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)dx_tex);
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)(intptr_t)tex->TexID;
-        RECT update_rect = { (LONG)tex->UpdateRect.x, (LONG)tex->UpdateRect.y, (LONG)(tex->UpdateRect.x + tex->UpdateRect.w), (LONG)(tex->UpdateRect.y + tex->UpdateRect.h) };
-        D3DLOCKED_RECT locked_rect;
-        if (backend_tex->LockRect(0, &locked_rect, &update_rect, 0) == D3D_OK)
-            for (ImTextureRect& r : tex->Updates)
-                ImGui_ImplDX9_CopyTextureRegion(tex->UseColors, (ImU32*)tex->GetPixelsAt(r.x, r.y), tex->Width * 4,
-                    (ImU32*)locked_rect.pBits + (r.x - update_rect.left) + (r.y - update_rect.top) * (locked_rect.Pitch / 4), (int)locked_rect.Pitch, r.w, r.h);
-        backend_tex->UnlockRect(0);
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy)
-    {
-        LPDIRECT3DTEXTURE9 backend_tex = (LPDIRECT3DTEXTURE9)tex->TexID;
-        if (backend_tex == nullptr)
-            return;
-        IM_ASSERT(tex->TexID == (ImTextureID)(intptr_t)backend_tex);
-        backend_tex->Release();
-
-        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
-    }
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)bd->FontTexture);
+    return true;
 }
 
 bool ImGui_ImplDX9_CreateDeviceObjects()
@@ -461,6 +412,8 @@ bool ImGui_ImplDX9_CreateDeviceObjects()
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
     if (!bd || !bd->pd3dDevice)
         return false;
+    if (!ImGui_ImplDX9_CreateFontsTexture())
+        return false;
     ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows();
     return true;
 }
@@ -470,16 +423,9 @@ void ImGui_ImplDX9_InvalidateDeviceObjects()
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
     if (!bd || !bd->pd3dDevice)
         return;
-
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-        {
-            tex->SetStatus(ImTextureStatus_WantDestroy);
-            ImGui_ImplDX9_UpdateTexture(tex);
-        }
     if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
     if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
+    if (bd->FontTexture) { bd->FontTexture->Release(); bd->FontTexture = nullptr; ImGui::GetIO().Fonts->SetTexID(0); } // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
     ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows();
 }
 
@@ -487,7 +433,9 @@ void ImGui_ImplDX9_NewFrame()
 {
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX9_Init()?");
-    IM_UNUSED(bd);
+
+    if (!bd->FontTexture)
+        ImGui_ImplDX9_CreateDeviceObjects();
 }
 
 //--------------------------------------------------------------------------------------------------------
@@ -512,7 +460,7 @@ static void ImGui_ImplDX9_CreateWindow(ImGuiViewport* viewport)
     ImGui_ImplDX9_ViewportData* vd = IM_NEW(ImGui_ImplDX9_ViewportData)();
     viewport->RendererUserData = vd;
 
-    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL's WindowID).
+    // PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
     // Some backends will leave PlatformHandleRaw == 0, in which case we assume PlatformHandle will contain the HWND.
     HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
     IM_ASSERT(hwnd != 0);

backends/imgui_impl_dx9.h

@@ -2,10 +2,9 @@
 // This needs to be used along with a Platform Backend (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR support, as this is the optimal color encoding for DirectX9.
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
+//  [X] Renderer: IMGUI_USE_BGRA_PACKED_COLOR is supported, as this is the optimal color encoding for DirectX9.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -32,7 +31,4 @@ IMGUI_IMPL_API void     ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data);
 IMGUI_IMPL_API bool     ImGui_ImplDX9_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplDX9_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplDX9_UpdateTexture(ImTextureData* tex);
-
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_glfw.cpp

@@ -8,13 +8,10 @@
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+).
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-//  [X] Multiple Dear ImGui contexts support.
-// Missing features or Issues:
-//  [ ] Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
-//  [ ] Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
-//  [ ] Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+// Issues:
+//  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -31,17 +28,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-07-08: Made ImGui_ImplGlfw_GetContentScaleForWindow(), ImGui_ImplGlfw_GetContentScaleForMonitor() helpers return 1.0f on Emscripten and Android platforms, matching macOS logic. (#8742, #8733)
-//  2025-06-18: Added support for multiple Dear ImGui contexts. (#8676, #8239, #8069)
-//  2025-06-11: Added ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window) and ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor) helper to facilitate making DPI-aware apps.
-//  2025-05-15: [Docking] Add Platform_GetWindowFramebufferScale() handler, to allow varying Retina display density on multiple monitors.
-//  2025-04-26: [Docking] Disable multi-viewports under Wayland. (#8587)
-//  2025-03-10: Map GLFW_KEY_WORLD_1 and GLFW_KEY_WORLD_2 into ImGuiKey_Oem102.
-//  2025-03-03: Fixed clipboard handler assertion when using GLFW <= 3.2.1 compiled with asserts enabled.
-//  2025-02-21: [Docking] Update monitors and work areas information every frame, as the later may change regardless of monitor changes. (#8415)
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-11-05: [Docking] Added Linux workaround for spurious mouse up events emitted while dragging and creating new viewport. (#3158, #7733, #7922)
-//  2024-08-22: Moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
+//  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
 //               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
 //               - io.SetClipboardTextFn    -> platform_io.Platform_SetClipboardTextFn
 //               - io.PlatformOpenInShellFn -> platform_io.Platform_OpenInShellFn
@@ -108,8 +97,6 @@
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wold-style-cast"     // warning: use of old-style cast
 #pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
-#elif defined(__GNUC__)
-#pragma GCC diagnostic ignored "-Wfloat-equal"          // warning: comparing floating-point with '==' or '!=' is unsafe
 #endif
 
 // GLFW
@@ -131,7 +118,6 @@
 #ifndef _WIN32
 #include <unistd.h>             // for usleep()
 #endif
-#include <stdio.h>              // for snprintf()
 
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
@@ -171,17 +157,6 @@
 #define GLFW_HAS_GAMEPAD_API            (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetGamepadState() new api
 #define GLFW_HAS_GETKEYNAME             (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwGetKeyName()
 #define GLFW_HAS_GETERROR               (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetError()
-#define GLFW_HAS_GETPLATFORM            (GLFW_VERSION_COMBINED >= 3400) // 3.4+ glfwGetPlatform()
-
-// Map GLFWWindow* to ImGuiContext*. 
-// - Would be simpler if we could use glfwSetWindowUserPointer()/glfwGetWindowUserPointer(), but this is a single and shared resource.
-// - Would be simpler if we could use e.g. std::map<> as well. But we don't.
-// - This is not particularly optimized as we expect size to be small and queries to be rare.
-struct ImGui_ImplGlfw_WindowToContext { GLFWwindow* Window; ImGuiContext* Context; };
-static ImVector<ImGui_ImplGlfw_WindowToContext> g_ContextMap;
-static void ImGui_ImplGlfw_ContextMap_Add(GLFWwindow* window, ImGuiContext* ctx) { g_ContextMap.push_back(ImGui_ImplGlfw_WindowToContext{ window, ctx }); }
-static void ImGui_ImplGlfw_ContextMap_Remove(GLFWwindow* window)                 { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) { g_ContextMap.erase_unsorted(&entry); return; } }
-static ImGuiContext* ImGui_ImplGlfw_ContextMap_Get(GLFWwindow* window)           { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) return entry.Context; return nullptr; }
 
 // GLFW data
 enum GlfwClientApi
@@ -193,7 +168,6 @@ enum GlfwClientApi
 
 struct ImGui_ImplGlfw_Data
 {
-    ImGuiContext*           Context;
     GLFWwindow*             Window;
     GlfwClientApi           ClientApi;
     double                  Time;
@@ -205,7 +179,7 @@ struct ImGui_ImplGlfw_Data
     GLFWwindow*             KeyOwnerWindows[GLFW_KEY_LAST];
     bool                    InstalledCallbacks;
     bool                    CallbacksChainForAllWindows;
-    char                    BackendPlatformName[32];
+    bool                    WantUpdateMonitors;
 #ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
     const char*             CanvasSelector;
 #endif
@@ -233,18 +207,10 @@ struct ImGui_ImplGlfw_Data
 //   (passing install_callbacks=false in ImGui_ImplGlfw_InitXXX functions), set the current dear imgui context and then call our callbacks.
 // - Otherwise we may need to store a GLFWWindow* -> ImGuiContext* map and handle this in the backend, adding a little bit of extra complexity to it.
 // FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
-namespace ImGui { extern ImGuiIO& GetIO(ImGuiContext*); }
 static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData()
 {
-    // Get data for current context
     return ImGui::GetCurrentContext() ? (ImGui_ImplGlfw_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
 }
-static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData(GLFWwindow* window)
-{
-    // Get data for a given GLFW window, regardless of current context (since GLFW events are sent together)
-    ImGuiContext* ctx = ImGui_ImplGlfw_ContextMap_Get(window);
-    return (ImGui_ImplGlfw_Data*)ImGui::GetIO(ctx).BackendPlatformUserData;
-}
 
 // Forward Declarations
 static void ImGui_ImplGlfw_UpdateMonitors();
@@ -284,8 +250,6 @@ ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int keycode, int scancode)
         case GLFW_KEY_EQUAL: return ImGuiKey_Equal;
         case GLFW_KEY_LEFT_BRACKET: return ImGuiKey_LeftBracket;
         case GLFW_KEY_BACKSLASH: return ImGuiKey_Backslash;
-        case GLFW_KEY_WORLD_1: return ImGuiKey_Oem102;
-        case GLFW_KEY_WORLD_2: return ImGuiKey_Oem102;
         case GLFW_KEY_RIGHT_BRACKET: return ImGuiKey_RightBracket;
         case GLFW_KEY_GRAVE_ACCENT: return ImGuiKey_GraveAccent;
         case GLFW_KEY_CAPS_LOCK: return ImGuiKey_CapsLock;
@@ -385,39 +349,42 @@ ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int keycode, int scancode)
 
 // X11 does not include current pressed/released modifier key in 'mods' flags submitted by GLFW
 // See https://github.com/ocornut/imgui/issues/6034 and https://github.com/glfw/glfw/issues/1630
-static void ImGui_ImplGlfw_UpdateKeyModifiers(ImGuiIO& io, GLFWwindow* window)
+static void ImGui_ImplGlfw_UpdateKeyModifiers(GLFWwindow* window)
 {
+    ImGuiIO& io = ImGui::GetIO();
     io.AddKeyEvent(ImGuiMod_Ctrl,  (glfwGetKey(window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS));
     io.AddKeyEvent(ImGuiMod_Shift, (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT)   == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SHIFT)   == GLFW_PRESS));
     io.AddKeyEvent(ImGuiMod_Alt,   (glfwGetKey(window, GLFW_KEY_LEFT_ALT)     == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_ALT)     == GLFW_PRESS));
     io.AddKeyEvent(ImGuiMod_Super, (glfwGetKey(window, GLFW_KEY_LEFT_SUPER)   == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SUPER)   == GLFW_PRESS));
 }
 
-static bool ImGui_ImplGlfw_ShouldChainCallback(ImGui_ImplGlfw_Data* bd, GLFWwindow* window)
+static bool ImGui_ImplGlfw_ShouldChainCallback(GLFWwindow* window)
 {
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     return bd->CallbacksChainForAllWindows ? true : (window == bd->Window);
 }
 
 void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackMousebutton != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackMousebutton != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackMousebutton(window, button, action, mods);
 
     // Workaround for Linux: ignore mouse up events which are following an focus loss following a viewport creation
     if (bd->MouseIgnoreButtonUp && action == GLFW_RELEASE)
         return;
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
-    ImGui_ImplGlfw_UpdateKeyModifiers(io, window);
+    ImGui_ImplGlfw_UpdateKeyModifiers(window);
+
+    ImGuiIO& io = ImGui::GetIO();
     if (button >= 0 && button < ImGuiMouseButton_COUNT)
         io.AddMouseButtonEvent(button, action == GLFW_PRESS);
 }
 
 void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackScroll != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackScroll != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackScroll(window, xoffset, yoffset);
 
 #ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
@@ -425,7 +392,7 @@ void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yo
     return;
 #endif
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     io.AddMouseWheelEvent((float)xoffset, (float)yoffset);
 }
 
@@ -465,21 +432,21 @@ static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
 
 void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int keycode, int scancode, int action, int mods)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackKey != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackKey != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackKey(window, keycode, scancode, action, mods);
 
     if (action != GLFW_PRESS && action != GLFW_RELEASE)
         return;
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
-    ImGui_ImplGlfw_UpdateKeyModifiers(io, window);
+    ImGui_ImplGlfw_UpdateKeyModifiers(window);
 
     if (keycode >= 0 && keycode < IM_ARRAYSIZE(bd->KeyOwnerWindows))
         bd->KeyOwnerWindows[keycode] = (action == GLFW_PRESS) ? window : nullptr;
 
     keycode = ImGui_ImplGlfw_TranslateUntranslatedKey(keycode, scancode);
 
+    ImGuiIO& io = ImGui::GetIO();
     ImGuiKey imgui_key = ImGui_ImplGlfw_KeyToImGuiKey(keycode, scancode);
     io.AddKeyEvent(imgui_key, (action == GLFW_PRESS));
     io.SetKeyEventNativeData(imgui_key, keycode, scancode); // To support legacy indexing (<1.87 user code)
@@ -487,25 +454,25 @@ void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int keycode, int scancode, i
 
 void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackWindowFocus != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackWindowFocus != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackWindowFocus(window, focused);
 
     // Workaround for Linux: when losing focus with MouseIgnoreButtonUpWaitForFocusLoss set, we will temporarily ignore subsequent Mouse Up events
     bd->MouseIgnoreButtonUp = (bd->MouseIgnoreButtonUpWaitForFocusLoss && focused == 0);
     bd->MouseIgnoreButtonUpWaitForFocusLoss = false;
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     io.AddFocusEvent(focused != 0);
 }
 
 void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackCursorPos != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackCursorPos != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackCursorPos(window, x, y);
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         int window_x, window_y;
@@ -521,11 +488,11 @@ void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y)
 // so we back it up and restore on Leave/Enter (see https://github.com/ocornut/imgui/issues/4984)
 void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackCursorEnter != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackCursorEnter != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackCursorEnter(window, entered);
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     if (entered)
     {
         bd->MouseWindow = window;
@@ -541,32 +508,32 @@ void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
 
 void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
-    if (bd->PrevUserCallbackChar != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if (bd->PrevUserCallbackChar != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window))
         bd->PrevUserCallbackChar(window, c);
 
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     io.AddInputCharacter(c);
 }
 
 void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int)
 {
-    // This function is technically part of the API even if we stopped using the callback, so leaving it around.
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    bd->WantUpdateMonitors = true;
 }
 
 #ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
-static EM_BOOL ImGui_ImplEmscripten_WheelCallback(int, const EmscriptenWheelEvent* ev, void* user_data)
+static EM_BOOL ImGui_ImplEmscripten_WheelCallback(int, const EmscriptenWheelEvent* ev, void*)
 {
     // Mimic Emscripten_HandleWheel() in SDL.
     // Corresponding equivalent in GLFW JS emulation layer has incorrect quantizing preventing small values. See #6096
-    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
     float multiplier = 0.0f;
     if (ev->deltaMode == DOM_DELTA_PIXEL)       { multiplier = 1.0f / 100.0f; } // 100 pixels make up a step.
     else if (ev->deltaMode == DOM_DELTA_LINE)   { multiplier = 1.0f / 3.0f; }   // 3 lines make up a step.
     else if (ev->deltaMode == DOM_DELTA_PAGE)   { multiplier = 80.0f; }         // A page makes up 80 steps.
     float wheel_x = ev->deltaX * -multiplier;
     float wheel_y = ev->deltaY * -multiplier;
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGuiIO& io = ImGui::GetIO();
     io.AddMouseWheelEvent(wheel_x, wheel_y);
     //IMGUI_DEBUG_LOG("[Emsc] mode %d dx: %.2f, dy: %.2f, dz: %.2f --> feed %.2f %.2f\n", (int)ev->deltaMode, ev->deltaX, ev->deltaY, ev->deltaZ, wheel_x, wheel_y);
     return EM_TRUE;
@@ -579,7 +546,7 @@ static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wPara
 
 void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     IM_ASSERT(bd->InstalledCallbacks == false && "Callbacks already installed!");
     IM_ASSERT(bd->Window == window);
 
@@ -596,7 +563,7 @@ void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
 
 void ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window)
 {
-    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     IM_ASSERT(bd->InstalledCallbacks == true && "Callbacks not installed!");
     IM_ASSERT(bd->Window == window);
 
@@ -646,40 +613,24 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
 
     // Setup backend capabilities flags
     ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)();
-    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_glfw (%d)", GLFW_VERSION_COMBINED);
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = bd->BackendPlatformName;
+    io.BackendPlatformName = "imgui_impl_glfw";
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
-
-    bool has_viewports = false;
 #ifndef __EMSCRIPTEN__
-    has_viewports = true;
-#if GLFW_HAS_GETPLATFORM
-    if (glfwGetPlatform() == GLFW_PLATFORM_WAYLAND)
-        has_viewports = false;
-#endif
-    if (has_viewports)
-        io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;  // We can create multi-viewports on the Platform side (optional)
+    io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;    // We can create multi-viewports on the Platform side (optional)
 #endif
 #if GLFW_HAS_MOUSE_PASSTHROUGH || GLFW_HAS_WINDOW_HOVERED
     io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can call io.AddMouseViewportEvent() with correct data (optional)
 #endif
 
-    bd->Context = ImGui::GetCurrentContext();
     bd->Window = window;
     bd->Time = 0.0;
-    ImGui_ImplGlfw_ContextMap_Add(window, bd->Context);
+    bd->WantUpdateMonitors = true;
 
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-#if GLFW_VERSION_COMBINED < 3300
-    platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(ImGui_ImplGlfw_GetBackendData()->Window, text); };
-    platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(ImGui_ImplGlfw_GetBackendData()->Window); };
-#else
-    platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(nullptr, text); };
-    platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(nullptr); };
-#endif
-
+    platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(NULL, text); };
+    platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(NULL); };
 #ifdef __EMSCRIPTEN__
     platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplGlfw_EmscriptenOpenURL(url); return true; };
 #endif
@@ -729,14 +680,11 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
 #else
     IM_UNUSED(main_viewport);
 #endif
-    if (has_viewports)
-        ImGui_ImplGlfw_InitMultiViewportSupport();
+    ImGui_ImplGlfw_InitMultiViewportSupport();
 
     // Windows: register a WndProc hook so we can intercept some messages.
 #ifdef _WIN32
-    HWND hwnd = (HWND)main_viewport->PlatformHandleRaw;
-    ::SetPropA(hwnd, "IMGUI_BACKEND_DATA", bd);
-    bd->PrevWndProc = (WNDPROC)::GetWindowLongPtrW(hwnd, GWLP_WNDPROC);
+    bd->PrevWndProc = (WNDPROC)::GetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC);
     IM_ASSERT(bd->PrevWndProc != nullptr);
     ::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc);
 #endif
@@ -747,7 +695,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
 #if EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3 >= 34020240817
     if (emscripten::glfw3::IsRuntimePlatformApple())
     {
-        io.ConfigMacOSXBehaviors = true;
+        ImGui::GetIO().ConfigMacOSXBehaviors = true;
 
         // Due to how the browser (poorly) handles the Meta Key, this line essentially disables repeats when used.
         // This means that Meta + V only registers a single key-press, even if the keys are held.
@@ -798,7 +746,6 @@ void ImGui_ImplGlfw_Shutdown()
     // Windows: restore our WndProc hook
 #ifdef _WIN32
     ImGuiViewport* main_viewport = ImGui::GetMainViewport();
-    ::SetPropA((HWND)main_viewport->PlatformHandleRaw, "IMGUI_BACKEND_DATA", nullptr);
     ::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)bd->PrevWndProc);
     bd->PrevWndProc = nullptr;
 #endif
@@ -806,7 +753,6 @@ void ImGui_ImplGlfw_Shutdown()
     io.BackendPlatformName = nullptr;
     io.BackendPlatformUserData = nullptr;
     io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport);
-    ImGui_ImplGlfw_ContextMap_Remove(bd->Window);
     IM_DELETE(bd);
 }
 
@@ -913,7 +859,7 @@ static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v  > 1.0f ? 1.0
 static void ImGui_ImplGlfw_UpdateGamepads()
 {
     ImGuiIO& io = ImGui::GetIO();
-    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs, but see #8075
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
         return;
 
     io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
@@ -963,7 +909,9 @@ static void ImGui_ImplGlfw_UpdateGamepads()
 
 static void ImGui_ImplGlfw_UpdateMonitors()
 {
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    bd->WantUpdateMonitors = false;
 
     int monitors_count = 0;
     GLFWmonitor** glfw_monitors = glfwGetMonitors(&monitors_count);
@@ -990,63 +938,35 @@ static void ImGui_ImplGlfw_UpdateMonitors()
             monitor.WorkSize = ImVec2((float)w, (float)h);
         }
 #endif
-        float scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfw_monitors[n]);
-        if (scale == 0.0f)
+#if GLFW_HAS_PER_MONITOR_DPI
+        // Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
+        float x_scale, y_scale;
+        glfwGetMonitorContentScale(glfw_monitors[n], &x_scale, &y_scale);
+        if (x_scale == 0.0f)
             continue; // Some accessibility applications are declaring virtual monitors with a DPI of 0, see #7902.
-        monitor.DpiScale = scale;
+        monitor.DpiScale = x_scale;
+#endif
         monitor.PlatformHandle = (void*)glfw_monitors[n]; // [...] GLFW doc states: "guaranteed to be valid only until the monitor configuration changes"
         platform_io.Monitors.push_back(monitor);
     }
 }
 
-// - On Windows the process needs to be marked DPI-aware!! SDL2 doesn't do it by default. You can call ::SetProcessDPIAware() or call ImGui_ImplWin32_EnableDpiAwareness() from Win32 backend.
-// - Apple platforms use FramebufferScale so we always return 1.0f.
-// - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
-float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
-{
-#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
-    float x_scale, y_scale;
-    glfwGetWindowContentScale(window, &x_scale, &y_scale);
-    return x_scale;
-#else
-    IM_UNUSED(window);
-    return 1.0f;
-#endif
-}
-
-float ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor)
-{
-#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
-    float x_scale, y_scale;
-    glfwGetMonitorContentScale(monitor, &x_scale, &y_scale);
-    return x_scale;
-#else
-    IM_UNUSED(monitor);
-    return 1.0f;
-#endif
-}
-
-static void ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(GLFWwindow* window, ImVec2* out_size, ImVec2* out_framebuffer_scale)
-{
-    int w, h;
-    int display_w, display_h;
-    glfwGetWindowSize(window, &w, &h);
-    glfwGetFramebufferSize(window, &display_w, &display_h);
-    if (out_size != nullptr)
-        *out_size = ImVec2((float)w, (float)h);
-    if (out_framebuffer_scale != nullptr)
-        *out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / (float)w, (float)display_h / (float)h) : ImVec2(1.0f, 1.0f);
-}
-
 void ImGui_ImplGlfw_NewFrame()
 {
     ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
 
-    // Setup main viewport size (every frame to accommodate for window resizing)
-    ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(bd->Window, &io.DisplaySize, &io.DisplayFramebufferScale);
-    ImGui_ImplGlfw_UpdateMonitors();
+    // Setup display size (every frame to accommodate for window resizing)
+    int w, h;
+    int display_w, display_h;
+    glfwGetWindowSize(bd->Window, &w, &h);
+    glfwGetFramebufferSize(bd->Window, &display_w, &display_h);
+    io.DisplaySize = ImVec2((float)w, (float)h);
+    if (w > 0 && h > 0)
+        io.DisplayFramebufferScale = ImVec2((float)display_w / (float)w, (float)display_h / (float)h);
+    if (bd->WantUpdateMonitors)
+        ImGui_ImplGlfw_UpdateMonitors();
 
     // Setup time step
     // (Accept glfwGetTime() not returning a monotonically increasing value. Seems to happens on disconnecting peripherals and probably on VMs and Emscripten, see #6491, #6189, #6114, #3644)
@@ -1111,7 +1031,7 @@ void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow*, const char* canvas_s
     // Register Emscripten Wheel callback to workaround issue in Emscripten GLFW Emulation (#6096)
     // We intentionally do not check 'if (install_callbacks)' here, as some users may set it to false and call GLFW callback themselves.
     // FIXME: May break chaining in case user registered their own Emscripten callback?
-    emscripten_set_wheel_callback(bd->CanvasSelector, bd, false, ImGui_ImplEmscripten_WheelCallback);
+    emscripten_set_wheel_callback(bd->CanvasSelector, nullptr, false, ImGui_ImplEmscripten_WheelCallback);
 }
 #elif defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
 // When using --use-port=contrib.glfw3 for the GLFW implementation, you can override the behavior of this call
@@ -1133,10 +1053,10 @@ void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* window, const char* c
 // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
 //--------------------------------------------------------------------------------------------------------
 
-// Helper structure we store in the void* PlatformUserData field of each ImGuiViewport to easily retrieve our backend data.
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
 struct ImGui_ImplGlfw_ViewportData
 {
-    GLFWwindow* Window;             // Stored in ImGuiViewport::PlatformHandle
+    GLFWwindow* Window;
     bool        WindowOwned;
     int         IgnoreWindowPosEventFrame;
     int         IgnoreWindowSizeEventFrame;
@@ -1144,7 +1064,7 @@ struct ImGui_ImplGlfw_ViewportData
     WNDPROC     PrevWndProc;
 #endif
 
-    ImGui_ImplGlfw_ViewportData()  { memset((void*)this, 0, sizeof(*this)); IgnoreWindowSizeEventFrame = IgnoreWindowPosEventFrame = -1; }
+    ImGui_ImplGlfw_ViewportData()  { memset(this, 0, sizeof(*this)); IgnoreWindowSizeEventFrame = IgnoreWindowPosEventFrame = -1; }
     ~ImGui_ImplGlfw_ViewportData() { IM_ASSERT(Window == nullptr); }
 };
 
@@ -1215,11 +1135,9 @@ static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport)
     GLFWwindow* share_window = (bd->ClientApi == GlfwClientApi_OpenGL) ? bd->Window : nullptr;
     vd->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", nullptr, share_window);
     vd->WindowOwned = true;
-    ImGui_ImplGlfw_ContextMap_Add(vd->Window, bd->Context);
     viewport->PlatformHandle = (void*)vd->Window;
 #ifdef _WIN32
     viewport->PlatformHandleRaw = glfwGetWin32Window(vd->Window);
-    ::SetPropA((HWND)viewport->PlatformHandleRaw, "IMGUI_BACKEND_DATA", bd);
 #elif defined(__APPLE__)
     viewport->PlatformHandleRaw = (void*)glfwGetCocoaWindow(vd->Window);
 #endif
@@ -1261,7 +1179,6 @@ static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewport* viewport)
                 if (bd->KeyOwnerWindows[i] == vd->Window)
                     ImGui_ImplGlfw_KeyCallback(vd->Window, i, 0, GLFW_RELEASE, 0); // Later params are only used for main viewport, on which this function is never called.
 
-            ImGui_ImplGlfw_ContextMap_Remove(vd->Window);
             glfwDestroyWindow(vd->Window);
         }
         vd->Window = nullptr;
@@ -1285,10 +1202,12 @@ static void ImGui_ImplGlfw_ShowWindow(ImGuiViewport* viewport)
         ::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
     }
 
-    // GLFW hack: install WndProc for mouse source event and WM_NCHITTEST message handler.
+    // GLFW hack: install hook for WM_NCHITTEST message handler
+#if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)
     ::SetPropA(hwnd, "IMGUI_VIEWPORT", viewport);
     vd->PrevWndProc = (WNDPROC)::GetWindowLongPtrW(hwnd, GWLP_WNDPROC);
     ::SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc);
+#endif
 
 #if !GLFW_HAS_FOCUS_ON_SHOW
     // GLFW hack: GLFW 3.2 has a bug where glfwShowWindow() also activates/focus the window.
@@ -1332,7 +1251,7 @@ static ImVec2 ImGui_ImplGlfw_GetWindowSize(ImGuiViewport* viewport)
 static void ImGui_ImplGlfw_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
 {
     ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
-#if defined(__APPLE__) && !GLFW_HAS_OSX_WINDOW_POS_FIX
+#if __APPLE__ && !GLFW_HAS_OSX_WINDOW_POS_FIX
     // Native OS windows are positioned from the bottom-left corner on macOS, whereas on other platforms they are
     // positioned from the upper-left corner. GLFW makes an effort to convert macOS style coordinates, however it
     // doesn't handle it when changing size. We are manually moving the window in order for changes of size to be based
@@ -1346,14 +1265,6 @@ static void ImGui_ImplGlfw_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
     glfwSetWindowSize(vd->Window, (int)size.x, (int)size.y);
 }
 
-static ImVec2 ImGui_ImplGlfw_GetWindowFramebufferScale(ImGuiViewport* viewport)
-{
-    ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
-    ImVec2 framebuffer_scale;
-    ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(vd->Window, nullptr, &framebuffer_scale);
-    return framebuffer_scale;
-}
-
 static void ImGui_ImplGlfw_SetWindowTitle(ImGuiViewport* viewport, const char* title)
 {
     ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
@@ -1452,7 +1363,6 @@ static void ImGui_ImplGlfw_InitMultiViewportSupport()
     platform_io.Platform_GetWindowPos = ImGui_ImplGlfw_GetWindowPos;
     platform_io.Platform_SetWindowSize = ImGui_ImplGlfw_SetWindowSize;
     platform_io.Platform_GetWindowSize = ImGui_ImplGlfw_GetWindowSize;
-    platform_io.Platform_GetWindowFramebufferScale = ImGui_ImplGlfw_GetWindowFramebufferScale;
     platform_io.Platform_SetWindowFocus = ImGui_ImplGlfw_SetWindowFocus;
     platform_io.Platform_GetWindowFocus = ImGui_ImplGlfw_GetWindowFocus;
     platform_io.Platform_GetWindowMinimized = ImGui_ImplGlfw_GetWindowMinimized;
@@ -1496,9 +1406,7 @@ static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
 }
 static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
-    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)::GetPropA(hWnd, "IMGUI_BACKEND_DATA");
-    ImGuiIO& io = ImGui::GetIO(bd->Context);
-
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
     WNDPROC prev_wndproc = bd->PrevWndProc;
     ImGuiViewport* viewport = (ImGuiViewport*)::GetPropA(hWnd, "IMGUI_VIEWPORT");
     if (viewport != NULL)
@@ -1514,7 +1422,7 @@ static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wPara
     case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: case WM_RBUTTONUP:
     case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: case WM_MBUTTONUP:
     case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK: case WM_XBUTTONUP:
-        io.AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo());
+        ImGui::GetIO().AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo());
         break;
 
         // We have submitted https://github.com/glfw/glfw/pull/1568 to allow GLFW to support "transparent inputs".
@@ -1531,7 +1439,6 @@ static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wPara
         break;
     }
 #endif
-    default: break;
     }
     return ::CallWindowProcW(prev_wndproc, hWnd, msg, wParam, lParam);
 }

backends/imgui_impl_glfw.h

@@ -8,13 +8,10 @@
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+).
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-//  [X] Multiple Dear ImGui contexts support.
-// Missing features or Issues:
-//  [ ] Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
-//  [ ] Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
-//  [ ] Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+// Issues:
+//  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -66,8 +63,5 @@ IMGUI_IMPL_API void     ImGui_ImplGlfw_MonitorCallback(GLFWmonitor* monitor, int
 
 // GLFW helpers
 IMGUI_IMPL_API void     ImGui_ImplGlfw_Sleep(int milliseconds);
-IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window);
-IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor);
-
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_glut.cpp

@@ -7,7 +7,7 @@
 
 // Implemented features:
 //  [X] Platform: Partial keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLUT values are obsolete since 1.87 and not supported since 1.91.5]
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
 //  [ ] Platform: Missing horizontal mouse wheel support.
 //  [ ] Platform: Missing mouse cursor shape/visibility support.
@@ -51,7 +51,7 @@
 
 static int g_Time = 0;          // Current time, in milliseconds
 
-// Glut has one function for characters and one for "special keys". We map the characters in the 0..255 range and the keys above.
+// Glut has 1 function for characters and one for "special keys". We map the characters in the 0..255 range and the keys above.
 static ImGuiKey ImGui_ImplGLUT_KeyToImGuiKey(int key)
 {
     switch (key)

backends/imgui_impl_glut.h

@@ -7,7 +7,7 @@
 
 // Implemented features:
 //  [X] Platform: Partial keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLUT values are obsolete since 1.87 and not supported since 1.91.5]
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
 //  [ ] Platform: Missing horizontal mouse wheel support.
 //  [ ] Platform: Missing mouse cursor shape/visibility support.

backends/imgui_impl_metal.h

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. OSX)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -15,7 +14,6 @@
 // - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
 // - Introduction, links and more at the top of imgui.cpp
 
-#pragma once
 #include "imgui.h"      // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE
 
@@ -37,12 +35,11 @@ IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* drawData,
                                                    id<MTLRenderCommandEncoder> commandEncoder);
 
 // Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool ImGui_ImplMetal_CreateFontsTexture(id<MTLDevice> device);
+IMGUI_IMPL_API void ImGui_ImplMetal_DestroyFontsTexture();
 IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device);
 IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
-
 #endif
 
 //-----------------------------------------------------------------------------
@@ -65,12 +62,11 @@ IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
                                                    MTL::RenderCommandEncoder* commandEncoder);
 
 // Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool ImGui_ImplMetal_CreateFontsTexture(MTL::Device* device);
+IMGUI_IMPL_API void ImGui_ImplMetal_DestroyFontsTexture();
 IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device);
 IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex);
-
 #endif
 #endif
 

backends/imgui_impl_metal.mm

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. OSX)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -17,10 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Metal: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplMetal_CreateFontsTexture() and ImGui_ImplMetal_DestroyFontsTexture().
-//  2025-02-03: Metal: Crash fix. (#8367)
-//  2025-01-08: Metal: Fixed memory leaks when using metal-cpp (#8276, #8166) or when using multiple contexts (#7419).
+//  2024-XX-XX: Metal: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2022-08-23: Metal: Update deprecated property 'sampleCount'->'rasterSampleCount'.
 //  2022-07-05: Metal: Add dispatch synchronization.
 //  2022-06-30: Metal: Use __bridge for ARC based systems.
@@ -69,11 +65,6 @@ static void ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows();
 - (instancetype)initWithRenderPassDescriptor:(MTLRenderPassDescriptor*)renderPassDescriptor;
 @end
 
-@interface MetalTexture : NSObject
-@property (nonatomic, strong) id<MTLTexture> metalTexture;
-- (instancetype)initWithTexture:(id<MTLTexture>)metalTexture;
-@end
-
 // A singleton that stores long-lived objects that are needed by the Metal
 // renderer backend. Stores the render pipeline state cache and the default
 // font texture, and manages the reusable buffer cache.
@@ -82,6 +73,7 @@ static void ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows();
 @property (nonatomic, strong) id<MTLDepthStencilState>      depthStencilState;
 @property (nonatomic, strong) FramebufferDescriptor*        framebufferDescriptor; // framebuffer descriptor for current frame; transient
 @property (nonatomic, strong) NSMutableDictionary*          renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
+@property (nonatomic, strong, nullable) id<MTLTexture>      fontTexture;
 @property (nonatomic, strong) NSMutableArray<MetalBuffer*>* bufferCache;
 @property (nonatomic, assign) double                        lastBufferCachePurge;
 - (MetalBuffer*)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
@@ -124,6 +116,11 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
 
 }
 
+bool ImGui_ImplMetal_CreateFontsTexture(MTL::Device* device)
+{
+    return ImGui_ImplMetal_CreateFontsTexture((__bridge id<MTLDevice>)(device));
+}
+
 bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device)
 {
     return ImGui_ImplMetal_CreateDeviceObjects((__bridge id<MTLDevice>)(device));
@@ -143,7 +140,6 @@ bool ImGui_ImplMetal_Init(id<MTLDevice> device)
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_metal";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
     bd->SharedMetalContext = [[MetalContext alloc] init];
@@ -157,7 +153,6 @@ bool ImGui_ImplMetal_Init(id<MTLDevice> device)
 void ImGui_ImplMetal_Shutdown()
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
-    IM_UNUSED(bd);
     IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
     ImGui_ImplMetal_ShutdownMultiViewportSupport();
     ImGui_ImplMetal_DestroyDeviceObjects();
@@ -166,23 +161,20 @@ void ImGui_ImplMetal_Shutdown()
     ImGuiIO& io = ImGui::GetIO();
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
 }
 
 void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor)
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     IM_ASSERT(bd != nil && "Context or backend not initialized! Did you call ImGui_ImplMetal_Init()?");
-#ifdef IMGUI_IMPL_METAL_CPP
-    bd->SharedMetalContext.framebufferDescriptor = [[[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor]autorelease];
-#else
     bd->SharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
-#endif
+
     if (bd->SharedMetalContext.depthStencilState == nil)
         ImGui_ImplMetal_CreateDeviceObjects(bd->SharedMetalContext.device);
 }
 
-static void ImGui_ImplMetal_SetupRenderState(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer,
+static void ImGui_ImplMetal_SetupRenderState(ImDrawData* drawData, id<MTLCommandBuffer> commandBuffer,
     id<MTLRenderCommandEncoder> commandEncoder, id<MTLRenderPipelineState> renderPipelineState,
     MetalBuffer* vertexBuffer, size_t vertexBufferOffset)
 {
@@ -198,17 +190,17 @@ static void ImGui_ImplMetal_SetupRenderState(ImDrawData* draw_data, id<MTLComman
     {
         .originX = 0.0,
         .originY = 0.0,
-        .width = (double)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x),
-        .height = (double)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y),
+        .width = (double)(drawData->DisplaySize.x * drawData->FramebufferScale.x),
+        .height = (double)(drawData->DisplaySize.y * drawData->FramebufferScale.y),
         .znear = 0.0,
         .zfar = 1.0
     };
     [commandEncoder setViewport:viewport];
 
-    float L = draw_data->DisplayPos.x;
-    float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
-    float T = draw_data->DisplayPos.y;
-    float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+    float L = drawData->DisplayPos.x;
+    float R = drawData->DisplayPos.x + drawData->DisplaySize.x;
+    float T = drawData->DisplayPos.y;
+    float B = drawData->DisplayPos.y + drawData->DisplaySize.y;
     float N = (float)viewport.znear;
     float F = (float)viewport.zfar;
     const float ortho_projection[4][4] =
@@ -227,24 +219,17 @@ static void ImGui_ImplMetal_SetupRenderState(ImDrawData* draw_data, id<MTLComman
 }
 
 // Metal Render function.
-void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
+void ImGui_ImplMetal_RenderDrawData(ImDrawData* drawData, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     MetalContext* ctx = bd->SharedMetalContext;
 
     // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
-    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
-    if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdLists.Size == 0)
+    int fb_width = (int)(drawData->DisplaySize.x * drawData->FramebufferScale.x);
+    int fb_height = (int)(drawData->DisplaySize.y * drawData->FramebufferScale.y);
+    if (fb_width <= 0 || fb_height <= 0 || drawData->CmdListsCount == 0)
         return;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplMetal_UpdateTexture(tex);
-
     // Try to retrieve a render pipeline state that is compatible with the framebuffer config for this frame
     // The hit rate for this cache should be very near 100%.
     id<MTLRenderPipelineState> renderPipelineState = ctx.renderPipelineStateCache[ctx.framebufferDescriptor];
@@ -257,22 +242,24 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
         ctx.renderPipelineStateCache[ctx.framebufferDescriptor] = renderPipelineState;
     }
 
-    size_t vertexBufferLength = (size_t)draw_data->TotalVtxCount * sizeof(ImDrawVert);
-    size_t indexBufferLength = (size_t)draw_data->TotalIdxCount * sizeof(ImDrawIdx);
+    size_t vertexBufferLength = (size_t)drawData->TotalVtxCount * sizeof(ImDrawVert);
+    size_t indexBufferLength = (size_t)drawData->TotalIdxCount * sizeof(ImDrawIdx);
     MetalBuffer* vertexBuffer = [ctx dequeueReusableBufferOfLength:vertexBufferLength device:commandBuffer.device];
     MetalBuffer* indexBuffer = [ctx dequeueReusableBufferOfLength:indexBufferLength device:commandBuffer.device];
 
-    ImGui_ImplMetal_SetupRenderState(draw_data, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, 0);
+    ImGui_ImplMetal_SetupRenderState(drawData, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, 0);
 
     // Will project scissor/clipping rectangles into framebuffer space
-    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
-    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+    ImVec2 clip_off = drawData->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = drawData->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
 
     // Render command lists
     size_t vertexBufferOffset = 0;
     size_t indexBufferOffset = 0;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < drawData->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = drawData->CmdLists[n];
+
         memcpy((char*)vertexBuffer.buffer.contents + vertexBufferOffset, draw_list->VtxBuffer.Data, (size_t)draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
         memcpy((char*)indexBuffer.buffer.contents + indexBufferOffset, draw_list->IdxBuffer.Data, (size_t)draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
 
@@ -284,7 +271,7 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
                 // User callback, registered via ImDrawList::AddCallback()
                 // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
                 if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
-                    ImGui_ImplMetal_SetupRenderState(draw_data, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, vertexBufferOffset);
+                    ImGui_ImplMetal_SetupRenderState(drawData, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, vertexBufferOffset);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
             }
@@ -331,84 +318,58 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
         indexBufferOffset += (size_t)draw_list->IdxBuffer.Size * sizeof(ImDrawIdx);
     }
 
-    MetalContext* sharedMetalContext = bd->SharedMetalContext;
     [commandBuffer addCompletedHandler:^(id<MTLCommandBuffer>)
     {
         dispatch_async(dispatch_get_main_queue(), ^{
-            @synchronized(sharedMetalContext.bufferCache)
+            ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+            if (bd != nullptr)
             {
-                [sharedMetalContext.bufferCache addObject:vertexBuffer];
-                [sharedMetalContext.bufferCache addObject:indexBuffer];
+                @synchronized(bd->SharedMetalContext.bufferCache)
+                {
+                    [bd->SharedMetalContext.bufferCache addObject:vertexBuffer];
+                    [bd->SharedMetalContext.bufferCache addObject:indexBuffer];
+                }
             }
         });
     }];
 }
 
-static void ImGui_ImplMetal_DestroyTexture(ImTextureData* tex)
-{
-    MetalTexture* backend_tex = (__bridge_transfer MetalTexture*)(tex->BackendUserData);
-    if (backend_tex == nullptr)
-        return;
-    IM_ASSERT(backend_tex.metalTexture == (__bridge id<MTLTexture>)(void*)(intptr_t)tex->TexID);
-    backend_tex.metalTexture = nil;
-
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-    tex->BackendUserData = nullptr;
-}
-
-void ImGui_ImplMetal_UpdateTexture(ImTextureData* tex)
+bool ImGui_ImplMetal_CreateFontsTexture(id<MTLDevice> device)
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+    ImGuiIO& io = ImGui::GetIO();
 
-        // We are retrieving and uploading the font atlas as a 4-channels RGBA texture here.
-        // In theory we could call GetTexDataAsAlpha8() and upload a 1-channel texture to save on memory access bandwidth.
-        // However, using a shader designed for 1-channel texture would make it less obvious to use the ImTextureID facility to render users own textures.
-        // You can make that change in your implementation.
-        MTLTextureDescriptor* textureDescriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatRGBA8Unorm
-                                                                                                     width:(NSUInteger)tex->Width
-                                                                                                    height:(NSUInteger)tex->Height
-                                                                                                 mipmapped:NO];
-        textureDescriptor.usage = MTLTextureUsageShaderRead;
-    #if TARGET_OS_OSX || TARGET_OS_MACCATALYST
-        textureDescriptor.storageMode = MTLStorageModeManaged;
-    #else
-        textureDescriptor.storageMode = MTLStorageModeShared;
-    #endif
-        id <MTLTexture> texture = [bd->SharedMetalContext.device newTextureWithDescriptor:textureDescriptor];
-        [texture replaceRegion:MTLRegionMake2D(0, 0, (NSUInteger)tex->Width, (NSUInteger)tex->Height) mipmapLevel:0 withBytes:tex->Pixels bytesPerRow:(NSUInteger)tex->Width * 4];
-        MetalTexture* backend_tex = [[MetalTexture alloc] initWithTexture:texture];
+    // We are retrieving and uploading the font atlas as a 4-channels RGBA texture here.
+    // In theory we could call GetTexDataAsAlpha8() and upload a 1-channel texture to save on memory access bandwidth.
+    // However, using a shader designed for 1-channel texture would make it less obvious to use the ImTextureID facility to render users own textures.
+    // You can make that change in your implementation.
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+    MTLTextureDescriptor* textureDescriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatRGBA8Unorm
+                                                                                                 width:(NSUInteger)width
+                                                                                                height:(NSUInteger)height
+                                                                                             mipmapped:NO];
+    textureDescriptor.usage = MTLTextureUsageShaderRead;
+#if TARGET_OS_OSX || TARGET_OS_MACCATALYST
+    textureDescriptor.storageMode = MTLStorageModeManaged;
+#else
+    textureDescriptor.storageMode = MTLStorageModeShared;
+#endif
+    id <MTLTexture> texture = [device newTextureWithDescriptor:textureDescriptor];
+    [texture replaceRegion:MTLRegionMake2D(0, 0, (NSUInteger)width, (NSUInteger)height) mipmapLevel:0 withBytes:pixels bytesPerRow:(NSUInteger)width * 4];
+    bd->SharedMetalContext.fontTexture = texture;
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)(__bridge void*)bd->SharedMetalContext.fontTexture); // ImTextureID == ImU64
 
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)texture);
-        tex->SetStatus(ImTextureStatus_OK);
-        tex->BackendUserData = (__bridge_retained void*)(backend_tex);
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        MetalTexture* backend_tex = (__bridge MetalTexture*)(tex->BackendUserData);
-        for (ImTextureRect& r : tex->Updates)
-        {
-            [backend_tex.metalTexture replaceRegion:MTLRegionMake2D((NSUInteger)r.x, (NSUInteger)r.y, (NSUInteger)r.w, (NSUInteger)r.h)
-                                        mipmapLevel:0
-                                          withBytes:tex->GetPixelsAt(r.x, r.y)
-                                        bytesPerRow:(NSUInteger)tex->Width * 4];
-        }
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-    {
-        ImGui_ImplMetal_DestroyTexture(tex);
-    }
+    return (bd->SharedMetalContext.fontTexture != nil);
+}
+
+void ImGui_ImplMetal_DestroyFontsTexture()
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    ImGuiIO& io = ImGui::GetIO();
+    bd->SharedMetalContext.fontTexture = nil;
+    io.Fonts->SetTexID(0);
 }
 
 bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
@@ -419,9 +380,7 @@ bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
     depthStencilDescriptor.depthCompareFunction = MTLCompareFunctionAlways;
     bd->SharedMetalContext.depthStencilState = [device newDepthStencilStateWithDescriptor:depthStencilDescriptor];
     ImGui_ImplMetal_CreateDeviceObjectsForPlatformWindows();
-#ifdef IMGUI_IMPL_METAL_CPP
-    [depthStencilDescriptor release];
-#endif
+    ImGui_ImplMetal_CreateFontsTexture(device);
 
     return true;
 }
@@ -429,12 +388,7 @@ bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
 void ImGui_ImplMetal_DestroyDeviceObjects()
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
-
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplMetal_DestroyTexture(tex);
-
+    ImGui_ImplMetal_DestroyFontsTexture();
     ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows();
     [bd->SharedMetalContext.renderPipelineStateCache removeAllObjects];
 }
@@ -526,12 +480,13 @@ static void ImGui_ImplMetal_RenderWindow(ImGuiViewport* viewport, void*)
     }
     data->FirstFrame = false;
 
-    float fb_scale = (float)window.backingScaleFactor;
-    if (data->MetalLayer.contentsScale != fb_scale)
+    viewport->DpiScale = (float)window.backingScaleFactor;
+    if (data->MetalLayer.contentsScale != viewport->DpiScale)
     {
-        data->MetalLayer.contentsScale = fb_scale;
-        data->MetalLayer.drawableSize = MakeScaledSize(window.frame.size, fb_scale);
+        data->MetalLayer.contentsScale = viewport->DpiScale;
+        data->MetalLayer.drawableSize = MakeScaledSize(window.frame.size, viewport->DpiScale);
     }
+    viewport->DrawData->FramebufferScale = ImVec2(viewport->DpiScale, viewport->DpiScale);
 #endif
 
     id <CAMetalDrawable> drawable = [data->MetalLayer nextDrawable];
@@ -645,18 +600,6 @@ static void ImGui_ImplMetal_InvalidateDeviceObjectsForPlatformWindows()
 
 @end
 
-#pragma mark - MetalTexture implementation
-
-@implementation MetalTexture
-- (instancetype)initWithTexture:(id<MTLTexture>)metalTexture
-{
-    if ((self = [super init]))
-        self.metalTexture = metalTexture;
-    return self;
-}
-
-@end
-
 #pragma mark - MetalContext implementation
 
 @implementation MetalContext

backends/imgui_impl_opengl2.cpp

@@ -2,11 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-// Missing features or Issues:
-//  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -26,9 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures. (#8802)
-//  2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL2_CreateFontsTexture() and ImGui_ImplOpenGL2_DestroyFontsTexture().
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-07: OpenGL: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2024-06-28: OpenGL: ImGui_ImplOpenGL2_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL2_DestroyFontsTexture(). (#7748)
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
@@ -74,18 +69,10 @@
 #include <GL/gl.h>
 #endif
 
-// [Debugging]
-//#define IMGUI_IMPL_OPENGL_DEBUG
-#ifdef IMGUI_IMPL_OPENGL_DEBUG
-#include <stdio.h>
-#define GL_CALL(_CALL)      do { _CALL; GLenum gl_err = glGetError(); if (gl_err != 0) fprintf(stderr, "GL error 0x%x returned from '%s'.\n", gl_err, #_CALL); } while (0)  // Call with error check
-#else
-#define GL_CALL(_CALL)      _CALL   // Call without error check
-#endif
-
-// OpenGL data
 struct ImGui_ImplOpenGL2_Data
 {
+    GLuint       FontTexture;
+
     ImGui_ImplOpenGL2_Data() { memset((void*)this, 0, sizeof(*this)); }
 };
 
@@ -111,8 +98,7 @@ bool    ImGui_ImplOpenGL2_Init()
     ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_opengl2";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;      // We can create multi-viewports on the Renderer side (optional)
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;    // We can create multi-viewports on the Renderer side (optional)
 
     ImGui_ImplOpenGL2_InitMultiViewportSupport();
 
@@ -129,7 +115,7 @@ void    ImGui_ImplOpenGL2_Shutdown()
     ImGui_ImplOpenGL2_DestroyDeviceObjects();
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasViewports;
     IM_DELETE(bd);
 }
 
@@ -137,7 +123,11 @@ void    ImGui_ImplOpenGL2_NewFrame()
 {
     ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL2_Init()?");
-    IM_UNUSED(bd);
+
+    if (!bd->FontTexture)
+        ImGui_ImplOpenGL2_CreateDeviceObjects();
+    if (!bd->FontTexture)
+        ImGui_ImplOpenGL2_CreateFontsTexture();
 }
 
 static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
@@ -174,7 +164,7 @@ static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_wid
 
     // Setup viewport, orthographic projection matrix
     // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
-    GL_CALL(glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height));
+    glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
     glMatrixMode(GL_PROJECTION);
     glPushMatrix();
     glLoadIdentity();
@@ -195,13 +185,6 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
     if (fb_width == 0 || fb_height == 0)
         return;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplOpenGL2_UpdateTexture(tex);
-
     // Backup GL state
     GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
     GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
@@ -219,8 +202,9 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
     ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
 
     // Render command lists
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
         const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
         glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + offsetof(ImDrawVert, pos)));
@@ -274,79 +258,57 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
     glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
 }
 
-void ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex)
+bool ImGui_ImplOpenGL2_CreateFontsTexture()
 {
-    if (tex->Status == ImTextureStatus_WantCreate)
+    // Build texture atlas
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
+
+    // Upload texture to graphics system
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    GLint last_texture;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    glGenTextures(1, &bd->FontTexture);
+    glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
+
+    // Restore state
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+
+    return true;
+}
+
+void ImGui_ImplOpenGL2_DestroyFontsTexture()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
+    if (bd->FontTexture)
     {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        const void* pixels = tex->GetPixels();
-        GLuint gl_texture_id = 0;
-
-        // Upload texture to graphics system
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-        GLint last_texture;
-        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
-        GL_CALL(glGenTextures(1, &gl_texture_id));
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_texture_id));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
-        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
-        GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->Width, tex->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)gl_texture_id);
-        tex->SetStatus(ImTextureStatus_OK);
-
-        // Restore state
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture));
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        GLint last_texture;
-        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
-
-        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_tex_id));
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->Width));
-        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
-        for (ImTextureRect& r : tex->Updates)
-            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, tex->GetPixelsAt(r.x, r.y)));
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture)); // Restore state
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy)
-    {
-        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
-        glDeleteTextures(1, &gl_tex_id);
-
-        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
+        glDeleteTextures(1, &bd->FontTexture);
+        io.Fonts->SetTexID(0);
+        bd->FontTexture = 0;
     }
 }
 
 bool    ImGui_ImplOpenGL2_CreateDeviceObjects()
 {
-    return true;
+    return ImGui_ImplOpenGL2_CreateFontsTexture();
 }
 
 void    ImGui_ImplOpenGL2_DestroyDeviceObjects()
 {
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-        {
-            tex->SetStatus(ImTextureStatus_WantDestroy);
-            ImGui_ImplOpenGL2_UpdateTexture(tex);
-        }
+    ImGui_ImplOpenGL2_DestroyFontsTexture();
 }
 
 

backends/imgui_impl_opengl2.h

@@ -2,11 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-// Missing features or Issues:
-//  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -35,10 +32,9 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL2_NewFrame();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
 
 // Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_CreateFontsTexture();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL2_DestroyFontsTexture();
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL2_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL2_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplOpenGL2_UpdateTexture(ImTextureData* tex);
-
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_opengl3.cpp

@@ -4,9 +4,8 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!]
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices (Desktop OpenGL only).
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // About WebGL/ES:
@@ -24,12 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-07-22: OpenGL: Add and call embedded loader shutdown during ImGui_ImplOpenGL3_Shutdown() to facilitate multiple init/shutdown cycles in same process. (#8792)
-//  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures (#8802) + restore non-WebGL/ES update path that doesn't require a CPU-side copy.
-//  2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL3_CreateFontsTexture() and ImGui_ImplOpenGL3_DestroyFontsTexture().
-//  2025-06-04: OpenGL: Made GLES 3.20 contexts not access GL_CONTEXT_PROFILE_MASK nor GL_PRIMITIVE_RESTART. (#8664)
-//  2025-02-18: OpenGL: Lazily reinitialize embedded GL loader for when calling backend from e.g. other DLL boundaries. (#8406)
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-07: OpenGL: Changed default texture sampler to Clamp instead of Repeat/Wrap.
 //  2024-06-28: OpenGL: ImGui_ImplOpenGL3_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL3_DestroyFontsTexture(). (#7748)
 //  2024-05-07: OpenGL: Update loader for Linux to support EGL/GLVND. (#7562)
@@ -61,7 +55,7 @@
 //  2021-01-03: OpenGL: Backup, setup and restore GL_STENCIL_TEST state.
 //  2020-10-23: OpenGL: Backup, setup and restore GL_PRIMITIVE_RESTART state.
 //  2020-10-15: OpenGL: Use glGetString(GL_VERSION) instead of glGetIntegerv(GL_MAJOR_VERSION, ...) when the later returns zero (e.g. Desktop GL 2.x)
-//  2020-09-17: OpenGL: Fix to avoid compiling/calling glBindSampler() on ES or pre-3.3 context which have the defines set by a loader.
+//  2020-09-17: OpenGL: Fix to avoid compiling/calling glBindSampler() on ES or pre 3.3 context which have the defines set by a loader.
 //  2020-07-10: OpenGL: Added support for glad2 OpenGL loader.
 //  2020-05-08: OpenGL: Made default GLSL version 150 (instead of 130) on OSX.
 //  2020-04-21: OpenGL: Fixed handling of glClipControl(GL_UPPER_LEFT) by inverting projection matrix.
@@ -145,7 +139,6 @@
 #pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wunknown-warning-option"   // warning: unknown warning group 'xxx'
 #pragma GCC diagnostic ignored "-Wcast-function-type"       // warning: cast between incompatible function types (for loader)
-#pragma GCC diagnostic ignored "-Wstrict-overflow"          // warning: assuming signed overflow does not occur when simplifying division / ..when changing X +- C1 cmp C2 to X cmp C2 -+ C1
 #endif
 
 // GL includes
@@ -177,7 +170,6 @@
 // - You can temporarily use an unstripped version. See https://github.com/dearimgui/gl3w_stripped/releases
 // Changes to this backend using new APIs should be accompanied by a regenerated stripped loader version.
 #define IMGL3W_IMPL
-#define IMGUI_IMPL_OPENGL_LOADER_IMGL3W
 #include "imgui_impl_opengl3_loader.h"
 #endif
 
@@ -237,7 +229,7 @@ struct ImGui_ImplOpenGL3_Data
     bool            GlProfileIsES3;
     bool            GlProfileIsCompat;
     GLint           GlProfileMask;
-    GLint           MaxTextureSize;
+    GLuint          FontTexture;
     GLuint          ShaderHandle;
     GLint           AttribLocationTex;       // Uniforms location
     GLint           AttribLocationProjMtx;
@@ -250,7 +242,6 @@ struct ImGui_ImplOpenGL3_Data
     bool            HasPolygonMode;
     bool            HasClipOrigin;
     bool            UseBufferSubData;
-    ImVector<char>  TempBuffer;
 
     ImGui_ImplOpenGL3_Data() { memset((void*)this, 0, sizeof(*this)); }
 };
@@ -290,21 +281,6 @@ struct ImGui_ImplOpenGL3_VtxAttribState
 };
 #endif
 
-// Not static to allow third-party code to use that if they want to (but undocumented)
-bool ImGui_ImplOpenGL3_InitLoader();
-bool ImGui_ImplOpenGL3_InitLoader()
-{
-    // Initialize our loader
-#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
-    if (glGetIntegerv == nullptr && imgl3wInit() != 0)
-    {
-        fprintf(stderr, "Failed to initialize OpenGL loader!\n");
-        return false;
-    }
-#endif
-    return true;
-}
-
 // Functions
 bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 {
@@ -312,9 +288,14 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
 
-    // Initialize loader
-    if (!ImGui_ImplOpenGL3_InitLoader())
+    // Initialize our loader
+#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
+    if (imgl3wInit() != 0)
+    {
+        fprintf(stderr, "Failed to initialize OpenGL loader!\n");
         return false;
+    }
+#endif
 
     // Setup backend capabilities flags
     ImGui_ImplOpenGL3_Data* bd = IM_NEW(ImGui_ImplOpenGL3_Data)();
@@ -322,14 +303,15 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     io.BackendRendererName = "imgui_impl_opengl3";
 
     // Query for GL version (e.g. 320 for GL 3.2)
-    const char* gl_version_str = (const char*)glGetString(GL_VERSION);
 #if defined(IMGUI_IMPL_OPENGL_ES2)
     // GLES 2
+    const char* gl_version_str = "";
+    IM_UNUSED(gl_version_str); // For IMGUI_IMPL_OPENGL_DEBUG block below.
     bd->GlVersion = 200;
     bd->GlProfileIsES2 = true;
-    IM_UNUSED(gl_version_str);
 #else
     // Desktop or GLES 3
+    const char* gl_version_str = (const char*)glGetString(GL_VERSION);
     GLint major = 0;
     GLint minor = 0;
     glGetIntegerv(GL_MAJOR_VERSION, &major);
@@ -337,7 +319,11 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     if (major == 0 && minor == 0)
         sscanf(gl_version_str, "%d.%d", &major, &minor); // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
     bd->GlVersion = (GLuint)(major * 100 + minor * 10);
-    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &bd->MaxTextureSize);
+#if defined(GL_CONTEXT_PROFILE_MASK)
+    if (bd->GlVersion >= 320)
+        glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
+    bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
+#endif
 
 #if defined(IMGUI_IMPL_OPENGL_ES3)
     bd->GlProfileIsES3 = true;
@@ -346,12 +332,6 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
         bd->GlProfileIsES3 = true;
 #endif
 
-#if defined(GL_CONTEXT_PROFILE_MASK)
-    if (!bd->GlProfileIsES3 && bd->GlVersion >= 320)
-        glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
-    bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
-#endif
-
     bd->UseBufferSubData = false;
     /*
     // Query vendor to enable glBufferSubData kludge
@@ -371,11 +351,7 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     if (bd->GlVersion >= 320)
         io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
 #endif
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;      // We can create multi-viewports on the Renderer side (optional)
-
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = (int)bd->MaxTextureSize;
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
     // Store GLSL version string so we can refer to it later in case we recreate shaders.
     // Note: GLSL version is NOT the same as GL version. Leave this to nullptr if unsure.
@@ -431,12 +407,8 @@ void    ImGui_ImplOpenGL3_Shutdown()
     ImGui_ImplOpenGL3_DestroyDeviceObjects();
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
-
-#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
-    imgl3wShutdown();
-#endif
 }
 
 void    ImGui_ImplOpenGL3_NewFrame()
@@ -444,11 +416,10 @@ void    ImGui_ImplOpenGL3_NewFrame()
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL3_Init()?");
 
-    ImGui_ImplOpenGL3_InitLoader(); // Lazily init loader if not already done for e.g. DLL boundaries.
-
     if (!bd->ShaderHandle)
-        if (!ImGui_ImplOpenGL3_CreateDeviceObjects())
-            IM_ASSERT(0 && "ImGui_ImplOpenGL3_CreateDeviceObjects() failed!");
+        ImGui_ImplOpenGL3_CreateDeviceObjects();
+    if (!bd->FontTexture)
+        ImGui_ImplOpenGL3_CreateFontsTexture();
 }
 
 static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height, GLuint vertex_array_object)
@@ -464,7 +435,7 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
     glDisable(GL_STENCIL_TEST);
     glEnable(GL_SCISSOR_TEST);
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
-    if (!bd->GlProfileIsES3 && bd->GlVersion >= 310)
+    if (bd->GlVersion >= 310)
         glDisable(GL_PRIMITIVE_RESTART);
 #endif
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
@@ -536,17 +507,8 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     if (fb_width <= 0 || fb_height <= 0)
         return;
 
-    ImGui_ImplOpenGL3_InitLoader(); // Lazily init loader if not already done for e.g. DLL boundaries.
-
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplOpenGL3_UpdateTexture(tex);
-
     // Backup GL state
     GLenum last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, (GLint*)&last_active_texture);
     glActiveTexture(GL_TEXTURE0);
@@ -583,7 +545,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     GLboolean last_enable_stencil_test = glIsEnabled(GL_STENCIL_TEST);
     GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
-    GLboolean last_enable_primitive_restart = (!bd->GlProfileIsES3 && bd->GlVersion >= 310) ? glIsEnabled(GL_PRIMITIVE_RESTART) : GL_FALSE;
+    GLboolean last_enable_primitive_restart = (bd->GlVersion >= 310) ? glIsEnabled(GL_PRIMITIVE_RESTART) : GL_FALSE;
 #endif
 
     // Setup desired GL state
@@ -600,8 +562,10 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
 
     // Render command lists
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
+
         // Upload vertex/index buffers
         // - OpenGL drivers are in a very sorry state nowadays....
         //   During 2021 we attempted to switch from glBufferData() to orphaning+glBufferSubData() following reports
@@ -700,7 +664,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     if (last_enable_stencil_test) glEnable(GL_STENCIL_TEST); else glDisable(GL_STENCIL_TEST);
     if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
-    if (!bd->GlProfileIsES3 && bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
+    if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
 #endif
 
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
@@ -713,90 +677,50 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     (void)bd; // Not all compilation paths use this
 }
 
-static void ImGui_ImplOpenGL3_DestroyTexture(ImTextureData* tex)
+bool ImGui_ImplOpenGL3_CreateFontsTexture()
 {
-    GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
-    glDeleteTextures(1, &gl_tex_id);
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
 
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
+    // Build texture atlas
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
+
+    // Upload texture to graphics system
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    GLint last_texture;
+    GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
+    GL_CALL(glGenTextures(1, &bd->FontTexture));
+    GL_CALL(glBindTexture(GL_TEXTURE_2D, bd->FontTexture));
+    GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
+    GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
+    GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+    GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
+    GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
+#endif
+    GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
+
+    // Store identifier
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
+
+    // Restore state
+    GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture));
+
+    return true;
 }
 
-void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
+void ImGui_ImplOpenGL3_DestroyFontsTexture()
 {
-    // FIXME: Consider backing up and restoring
-    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    if (bd->FontTexture)
     {
-#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
-#endif
-#ifdef GL_UNPACK_ALIGNMENT
-        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
-#endif
+        glDeleteTextures(1, &bd->FontTexture);
+        io.Fonts->SetTexID(0);
+        bd->FontTexture = 0;
     }
-
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        const void* pixels = tex->GetPixels();
-        GLuint gl_texture_id = 0;
-
-        // Upload texture to graphics system
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-        GLint last_texture;
-        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
-        GL_CALL(glGenTextures(1, &gl_texture_id));
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_texture_id));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
-        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
-        GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->Width, tex->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)gl_texture_id);
-        tex->SetStatus(ImTextureStatus_OK);
-
-        // Restore state
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture));
-    }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        GLint last_texture;
-        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
-
-        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_tex_id));
-#if GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->Width));
-        for (ImTextureRect& r : tex->Updates)
-            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, tex->GetPixelsAt(r.x, r.y)));
-        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
-#else
-        // GL ES doesn't have GL_UNPACK_ROW_LENGTH, so we need to (A) copy to a contiguous buffer or (B) upload line by line.
-        ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
-        for (ImTextureRect& r : tex->Updates)
-        {
-            const int src_pitch = r.w * tex->BytesPerPixel;
-            bd->TempBuffer.resize(r.h * src_pitch);
-            char* out_p = bd->TempBuffer.Data;
-            for (int y = 0; y < r.h; y++, out_p += src_pitch)
-                memcpy(out_p, tex->GetPixelsAt(r.x, r.y + y), src_pitch);
-            IM_ASSERT(out_p == bd->TempBuffer.end());
-            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, bd->TempBuffer.Data));
-        }
-#endif
-        tex->SetStatus(ImTextureStatus_OK);
-        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture)); // Restore state
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-        ImGui_ImplOpenGL3_DestroyTexture(tex);
 }
 
 // If you get an error please report on github. You may try different GL context version or GLSL version. See GL<>GLSL version table at the top of this file.
@@ -988,24 +912,21 @@ bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
     GL_CALL(vert_handle = glCreateShader(GL_VERTEX_SHADER));
     glShaderSource(vert_handle, 2, vertex_shader_with_version, nullptr);
     glCompileShader(vert_handle);
-    if (!CheckShader(vert_handle, "vertex shader"))
-        return false;
+    CheckShader(vert_handle, "vertex shader");
 
     const GLchar* fragment_shader_with_version[2] = { bd->GlslVersionString, fragment_shader };
     GLuint frag_handle;
     GL_CALL(frag_handle = glCreateShader(GL_FRAGMENT_SHADER));
     glShaderSource(frag_handle, 2, fragment_shader_with_version, nullptr);
     glCompileShader(frag_handle);
-    if (!CheckShader(frag_handle, "fragment shader"))
-        return false;
+    CheckShader(frag_handle, "fragment shader");
 
     // Link
     bd->ShaderHandle = glCreateProgram();
     glAttachShader(bd->ShaderHandle, vert_handle);
     glAttachShader(bd->ShaderHandle, frag_handle);
     glLinkProgram(bd->ShaderHandle);
-    if (!CheckProgram(bd->ShaderHandle, "shader program"))
-        return false;
+    CheckProgram(bd->ShaderHandle, "shader program");
 
     glDetachShader(bd->ShaderHandle, vert_handle);
     glDetachShader(bd->ShaderHandle, frag_handle);
@@ -1022,6 +943,8 @@ bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
     glGenBuffers(1, &bd->VboHandle);
     glGenBuffers(1, &bd->ElementsHandle);
 
+    ImGui_ImplOpenGL3_CreateFontsTexture();
+
     // Restore modified GL state
     glBindTexture(GL_TEXTURE_2D, last_texture);
     glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
@@ -1041,11 +964,7 @@ void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
     if (bd->VboHandle)      { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
     if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }
     if (bd->ShaderHandle)   { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }
-
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplOpenGL3_DestroyTexture(tex);
+    ImGui_ImplOpenGL3_DestroyFontsTexture();
 }
 
 //--------------------------------------------------------------------------------------------------------

backends/imgui_impl_opengl3.h

@@ -4,9 +4,8 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!]
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices (Desktop OpenGL only).
 //  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // About WebGL/ES:
@@ -38,12 +37,11 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_NewFrame();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
 
 // (Optional) Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateFontsTexture();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyFontsTexture();
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex);
-
 // Configuration flags to add in your imconfig file:
 //#define IMGUI_IMPL_OPENGL_ES2     // Enable ES 2 (Auto-detected on Emscripten)
 //#define IMGUI_IMPL_OPENGL_ES3     // Enable ES 3 (Auto-detected on iOS/Android)

backends/imgui_impl_opengl3_loader.h

@@ -166,9 +166,7 @@ typedef khronos_uint8_t GLubyte;
 #define GL_SCISSOR_BOX                    0x0C10
 #define GL_SCISSOR_TEST                   0x0C11
 #define GL_UNPACK_ROW_LENGTH              0x0CF2
-#define GL_UNPACK_ALIGNMENT               0x0CF5
 #define GL_PACK_ALIGNMENT                 0x0D05
-#define GL_MAX_TEXTURE_SIZE               0x0D33
 #define GL_TEXTURE_2D                     0x0DE1
 #define GL_UNSIGNED_BYTE                  0x1401
 #define GL_UNSIGNED_SHORT                 0x1403
@@ -226,13 +224,11 @@ typedef khronos_float_t GLclampf;
 typedef double GLclampd;
 #define GL_TEXTURE_BINDING_2D             0x8069
 typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
-typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
 typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
 typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
 typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
 #ifdef GL_GLEXT_PROTOTYPES
 GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices);
-GLAPI void APIENTRY glTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
 GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture);
 GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures);
 GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures);
@@ -477,13 +473,12 @@ typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc);
 /* gl3w api */
 GL3W_API int imgl3wInit(void);
 GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc);
-GL3W_API void imgl3wShutdown(void);
 GL3W_API int imgl3wIsSupported(int major, int minor);
 GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
 
 /* gl3w internal state */
 union ImGL3WProcs {
-    GL3WglProc ptr[60];
+    GL3WglProc ptr[59];
     struct {
         PFNGLACTIVETEXTUREPROC            ActiveTexture;
         PFNGLATTACHSHADERPROC             AttachShader;
@@ -539,7 +534,6 @@ union ImGL3WProcs {
         PFNGLSHADERSOURCEPROC             ShaderSource;
         PFNGLTEXIMAGE2DPROC               TexImage2D;
         PFNGLTEXPARAMETERIPROC            TexParameteri;
-        PFNGLTEXSUBIMAGE2DPROC            TexSubImage2D;
         PFNGLUNIFORM1IPROC                Uniform1i;
         PFNGLUNIFORMMATRIX4FVPROC         UniformMatrix4fv;
         PFNGLUSEPROGRAMPROC               UseProgram;
@@ -605,7 +599,6 @@ GL3W_API extern union ImGL3WProcs imgl3wProcs;
 #define glShaderSource                    imgl3wProcs.gl.ShaderSource
 #define glTexImage2D                      imgl3wProcs.gl.TexImage2D
 #define glTexParameteri                   imgl3wProcs.gl.TexParameteri
-#define glTexSubImage2D                   imgl3wProcs.gl.TexSubImage2D
 #define glUniform1i                       imgl3wProcs.gl.Uniform1i
 #define glUniformMatrix4fv                imgl3wProcs.gl.UniformMatrix4fv
 #define glUseProgram                      imgl3wProcs.gl.UseProgram
@@ -633,7 +626,7 @@ extern "C" {
 #endif
 #include <windows.h>
 
-static HMODULE libgl = NULL;
+static HMODULE libgl;
 typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR);
 static GL3WglGetProcAddr wgl_get_proc_address;
 
@@ -646,7 +639,7 @@ static int open_libgl(void)
     return GL3W_OK;
 }
 
-static void close_libgl(void) { FreeLibrary(libgl); libgl = NULL; }
+static void close_libgl(void) { FreeLibrary(libgl); }
 static GL3WglProc get_proc(const char *proc)
 {
     GL3WglProc res;
@@ -658,7 +651,7 @@ static GL3WglProc get_proc(const char *proc)
 #elif defined(__APPLE__)
 #include <dlfcn.h>
 
-static void *libgl = NULL;
+static void *libgl;
 static int open_libgl(void)
 {
     libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL);
@@ -667,7 +660,7 @@ static int open_libgl(void)
     return GL3W_OK;
 }
 
-static void close_libgl(void) { dlclose(libgl); libgl = NULL; }
+static void close_libgl(void) { dlclose(libgl); }
 
 static GL3WglProc get_proc(const char *proc)
 {
@@ -835,11 +828,6 @@ int imgl3wInit2(GL3WGetProcAddressProc proc)
     return parse_version();
 }
 
-void imgl3wShutdown(void)
-{
-    close_libgl();
-}
-
 int imgl3wIsSupported(int major, int minor)
 {
     if (major < 2)
@@ -906,7 +894,6 @@ static const char *proc_names[] = {
     "glShaderSource",
     "glTexImage2D",
     "glTexParameteri",
-    "glTexSubImage2D",
     "glUniform1i",
     "glUniformMatrix4fv",
     "glUseProgram",

backends/imgui_impl_osx.h

@@ -4,16 +4,16 @@
 // - Requires linking with the GameController framework ("-framework GameController").
 
 // Implemented features:
-//  [X] Platform: Clipboard support is part of core Dear ImGui (no specific code in this backend).
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Mouse support. Can discriminate Mouse/Pen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy kVK_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: OSX clipboard is supported within core Dear ImGui (no specific code in this backend).
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [X] Platform: IME support.
 //  [x] Platform: Multi-viewport / platform windows.
-// Missing features or Issues:
-//  [ ] Multi-viewport: Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
-//  [ ] Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+// Issues:
+//  [ ] Platform: Multi-viewport: Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
+//  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -23,7 +23,6 @@
 // - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
 // - Introduction, links and more at the top of imgui.cpp
 
-#pragma once
 #include "imgui.h"      // IMGUI_IMPL_API
 #ifndef IMGUI_DISABLE
 

backends/imgui_impl_osx.mm

@@ -4,16 +4,16 @@
 // - Requires linking with the GameController framework ("-framework GameController").
 
 // Implemented features:
-//  [X] Platform: Clipboard support is part of core Dear ImGui (no specific code in this backend).
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Mouse support. Can discriminate Mouse/Pen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy kVK_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: OSX clipboard is supported within core Dear ImGui (no specific code in this backend).
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [X] Platform: IME support.
 //  [x] Platform: Multi-viewport / platform windows.
-// Missing features or Issues:
-//  [ ] Multi-viewport: Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
-//  [ ] Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+// Issues:
+//  [ ] Platform: Multi-viewport: Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
+//  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -33,13 +33,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-07-08: [Docking] Fixed multi-viewport handling broken on 2025-06-02. (#8644, #8777)
-//  2025-06-27: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
-//  2025-06-12: ImGui_ImplOSX_HandleEvent() only process event for window containing our view. (#8644)
-//  2025-05-15: [Docking] Add Platform_GetWindowFramebufferScale() handler, to allow varying Retina display density on multiple monitors.
-//  2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
-//  2025-01-20: Removed notification observer when shutting down. (#8331)
+//  2024-XX-XX: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
 //               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
 //               - io.SetClipboardTextFn    -> platform_io.Platform_SetClipboardTextFn
@@ -47,7 +41,7 @@
 //  2024-07-02: Update for io.SetPlatformImeDataFn() -> io.PlatformSetImeDataFn() renaming in main library.
 //  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F20 function keys. Stopped mapping F13 into PrintScreen.
 //  2023-04-09: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_Pen.
-//  2023-02-01: Fixed scroll wheel scaling for devices emitting events with hasPreciseScrollingDeltas==false (e.g. non-Apple mice).
+//  2023-02-01: Fixed scroll wheel scaling for devices emitting events with hasPreciseScrollingDeltas==false (e.g. non-Apple mices).
 //  2022-11-02: Fixed mouse coordinates before clicking the host window.
 //  2022-10-06: Fixed mouse inputs on flipped views.
 //  2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
@@ -119,7 +113,6 @@ static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view);
 + (id)_windowResizeNorthEastSouthWestCursor;
 + (id)_windowResizeNorthSouthCursor;
 + (id)_windowResizeEastWestCursor;
-+ (id)busyButClickableCursor;
 @end
 
 /**
@@ -462,13 +455,12 @@ bool ImGui_ImplOSX_Init(NSView* view)
     bd->MouseCursors[ImGuiMouseCursor_Arrow] = [NSCursor arrowCursor];
     bd->MouseCursors[ImGuiMouseCursor_TextInput] = [NSCursor IBeamCursor];
     bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = [NSCursor closedHandCursor];
+    bd->MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
+    bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = [NSCursor operationNotAllowedCursor];
     bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
     bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
     bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
     bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
-    bd->MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
-    bd->MouseCursors[ImGuiMouseCursor_Wait] = bd->MouseCursors[ImGuiMouseCursor_Progress] = [NSCursor respondsToSelector:@selector(busyButClickableCursor)] ? [NSCursor busyButClickableCursor] : [NSCursor arrowCursor];
-    bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = [NSCursor operationNotAllowedCursor];
 
     // Note that imgui.cpp also include default OSX clipboard handlers which can be enabled
     // by adding '#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS' in imconfig.h and adding '-framework ApplicationServices' to your linker command-line.
@@ -515,7 +507,7 @@ bool ImGui_ImplOSX_Init(NSView* view)
     [view addSubview:bd->KeyEventResponder];
     ImGui_ImplOSX_AddTrackingArea(view);
 
-    platform_io.Platform_SetImeDataFn = [](ImGuiContext*, ImGuiViewport*, ImGuiPlatformImeData* data) -> void
+    platform_io.Platform_SetImeDataFn = [](ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data) -> void
     {
         ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
         if (data->WantVisible)
@@ -539,7 +531,6 @@ void ImGui_ImplOSX_Shutdown()
     ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
     IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
 
-    [[NSNotificationCenter defaultCenter] removeObserver:bd->Observer];
     bd->Observer = nullptr;
     if (bd->Monitor != nullptr)
     {
@@ -575,7 +566,7 @@ static void ImGui_ImplOSX_UpdateMouseCursor()
     else
     {
         NSCursor* desired = bd->MouseCursors[imgui_cursor] ?: bd->MouseCursors[ImGuiMouseCursor_Arrow];
-        // -[NSCursor set] generates measurable overhead if called unconditionally.
+        // -[NSCursor set] generates measureable overhead if called unconditionally.
         if (desired != NSCursor.currentCursor)
         {
             [desired set];
@@ -591,6 +582,8 @@ static void ImGui_ImplOSX_UpdateMouseCursor()
 static void ImGui_ImplOSX_UpdateGamepads()
 {
     ImGuiIO& io = ImGui::GetIO();
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
+        return;
 
 #if APPLE_HAS_CONTROLLER
     GCController* controller = GCController.current;
@@ -661,9 +654,9 @@ void ImGui_ImplOSX_NewFrame(NSView* view)
     // Setup display size
     if (view)
     {
-        const float fb_scale = (float)[view.window backingScaleFactor];
+        const float dpi = (float)[view.window backingScaleFactor];
         io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
-        io.DisplayFramebufferScale = ImVec2(fb_scale, fb_scale);
+        io.DisplayFramebufferScale = ImVec2(dpi, dpi);
     }
 
     // Setup time step
@@ -701,11 +694,8 @@ static ImGuiMouseSource GetMouseSource(NSEvent* event)
 
 static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
 {
-    // Only process events from the window containing ImGui view
-    if (!ImGui::FindViewportByPlatformHandle((__bridge void*)event.window))
-        return false;
-
     ImGuiIO& io = ImGui::GetIO();
+
     if (event.type == NSEventTypeLeftMouseDown || event.type == NSEventTypeRightMouseDown || event.type == NSEventTypeOtherMouseDown)
     {
         int button = (int)[event buttonNumber];
@@ -838,6 +828,8 @@ static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
                 default:
                     return io.WantCaptureKeyboard;
             }
+
+            NSEventModifierFlags modifier_flags = [event modifierFlags];
             io.AddKeyEvent(key, (modifier_flags & mask) != 0);
             io.SetKeyEventNativeData(key, key_code, -1); // To support legacy indexing (<1.87 user code)
         }
@@ -878,13 +870,13 @@ static void ImGui_ImplOSX_AddTrackingArea(NSView* _Nonnull view)
 // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
 //--------------------------------------------------------------------------------------------------------
 
-struct ImGui_ImplOSX_ViewportData
+struct ImGuiViewportDataOSX
 {
-    NSWindow*        Window;
-    bool             WindowOwned;
+    NSWindow*               Window;
+    bool                    WindowOwned;
 
-    ImGui_ImplOSX_ViewportData()  { WindowOwned = false; }
-    ~ImGui_ImplOSX_ViewportData() { IM_ASSERT(Window == nil); }
+    ImGuiViewportDataOSX()  { WindowOwned = false; }
+    ~ImGuiViewportDataOSX() { IM_ASSERT(Window == nil); }
 };
 
 @interface ImGui_ImplOSX_Window: NSWindow
@@ -909,8 +901,8 @@ static void ConvertNSRect(NSRect* r)
 static void ImGui_ImplOSX_CreateWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
-    ImGui_ImplOSX_ViewportData* vd = IM_NEW(ImGui_ImplOSX_ViewportData)();
-    viewport->PlatformUserData = vd;
+    ImGuiViewportDataOSX* data = IM_NEW(ImGuiViewportDataOSX)();
+    viewport->PlatformUserData = data;
 
     NSScreen* screen = bd->Window.screen;
     NSRect rect = NSMakeRect(viewport->Pos.x, viewport->Pos.y, viewport->Size.x, viewport->Size.y);
@@ -939,48 +931,51 @@ static void ImGui_ImplOSX_CreateWindow(ImGuiViewport* viewport)
 
     window.contentView = view;
 
-    vd->Window = window;
-    vd->WindowOwned = true;
+    data->Window = window;
+    data->WindowOwned = true;
     viewport->PlatformRequestResize = false;
     viewport->PlatformHandle = viewport->PlatformHandleRaw = (__bridge_retained void*)window;
 }
 
 static void ImGui_ImplOSX_DestroyWindow(ImGuiViewport* viewport)
 {
-    if (ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData)
+    NSWindow* window = (__bridge_transfer NSWindow*)viewport->PlatformHandleRaw;
+    window = nil;
+
+    if (ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData)
     {
-        NSWindow* window = vd->Window;
-        if (window != nil && vd->WindowOwned)
+        NSWindow* window = data->Window;
+        if (window != nil && data->WindowOwned)
         {
             window.contentView = nil;
             window.contentViewController = nil;
             [window orderOut:nil];
         }
-        vd->Window = nil;
-        IM_DELETE(vd);
+        data->Window = nil;
+        IM_DELETE(data);
     }
     viewport->PlatformUserData = viewport->PlatformHandle = viewport->PlatformHandleRaw = nullptr;
 }
 
 static void ImGui_ImplOSX_ShowWindow(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
     if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
-        [vd->Window orderFront:nil];
+        [data->Window orderFront:nil];
     else
-        [vd->Window makeKeyAndOrderFront:nil];
+        [data->Window makeKeyAndOrderFront:nil];
 
-    [vd->Window setIsVisible:YES];
+    [data->Window setIsVisible:YES];
 }
 
 static ImVec2 ImGui_ImplOSX_GetWindowPos(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    NSWindow* window = vd->Window;
+    NSWindow* window = data->Window;
     NSRect frame = window.frame;
     NSRect contentRect = window.contentLayoutRect;
     if (window.styleMask & NSWindowStyleMaskFullSizeContentView) // No title bar windows should be considered.
@@ -992,10 +987,10 @@ static ImVec2 ImGui_ImplOSX_GetWindowPos(ImGuiViewport* viewport)
 
 static void ImGui_ImplOSX_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    NSWindow* window = vd->Window;
+    NSWindow* window = data->Window;
     NSSize size = window.frame.size;
 
     NSRect r = NSMakeRect(pos.x, pos.y, size.width, size.height);
@@ -1005,20 +1000,20 @@ static void ImGui_ImplOSX_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
 
 static ImVec2 ImGui_ImplOSX_GetWindowSize(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    NSWindow* window = vd->Window;
+    NSWindow* window = data->Window;
     NSSize size = window.contentLayoutRect.size;
     return ImVec2(size.width, size.height);
 }
 
 static void ImGui_ImplOSX_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    NSWindow* window = vd->Window;
+    NSWindow* window = data->Window;
     NSRect rect = window.frame;
     rect.origin.y -= (size.y - rect.size.height);
     rect.size.width = size.x;
@@ -1026,61 +1021,53 @@ static void ImGui_ImplOSX_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
     [window setFrame:rect display:YES];
 }
 
-static ImVec2 ImGui_ImplOSX_GetWindowFramebufferScale(ImGuiViewport* viewport)
-{
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    NSWindow* window = vd->Window;
-    const float fb_scale = (float)[window backingScaleFactor];
-    return ImVec2(fb_scale, fb_scale);
-}
-
 static void ImGui_ImplOSX_SetWindowFocus(ImGuiViewport* viewport)
 {
     ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
-    [vd->Window makeKeyAndOrderFront:bd->Window];
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
+    [data->Window makeKeyAndOrderFront:bd->Window];
 }
 
 static bool ImGui_ImplOSX_GetWindowFocus(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    return vd->Window.isKeyWindow;
+    return data->Window.isKeyWindow;
 }
 
 static bool ImGui_ImplOSX_GetWindowMinimized(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    return vd->Window.isMiniaturized;
+    return data->Window.isMiniaturized;
 }
 
 static void ImGui_ImplOSX_SetWindowTitle(ImGuiViewport* viewport, const char* title)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    vd->Window.title = [NSString stringWithUTF8String:title];
+    data->Window.title = [NSString stringWithUTF8String:title];
 }
 
 static void ImGui_ImplOSX_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
     IM_ASSERT(alpha >= 0.0f && alpha <= 1.0f);
 
-    vd->Window.alphaValue = alpha;
+    data->Window.alphaValue = alpha;
 }
 
 static float ImGui_ImplOSX_GetWindowDpiScale(ImGuiViewport* viewport)
 {
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)viewport->PlatformUserData;
-    IM_ASSERT(vd->Window != 0);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)viewport->PlatformUserData;
+    IM_ASSERT(data->Window != 0);
 
-    return vd->Window.backingScaleFactor;
+    return data->Window.backingScaleFactor;
 }
 
 static void ImGui_ImplOSX_UpdateMonitors()
@@ -1123,7 +1110,6 @@ static void ImGui_ImplOSX_InitMultiViewportSupport()
     platform_io.Platform_GetWindowPos = ImGui_ImplOSX_GetWindowPos;
     platform_io.Platform_SetWindowSize = ImGui_ImplOSX_SetWindowSize;
     platform_io.Platform_GetWindowSize = ImGui_ImplOSX_GetWindowSize;
-    platform_io.Platform_GetWindowFramebufferScale = ImGui_ImplOSX_GetWindowFramebufferScale;
     platform_io.Platform_SetWindowFocus = ImGui_ImplOSX_SetWindowFocus;
     platform_io.Platform_GetWindowFocus = ImGui_ImplOSX_GetWindowFocus;
     platform_io.Platform_GetWindowMinimized = ImGui_ImplOSX_GetWindowMinimized;
@@ -1133,10 +1119,10 @@ static void ImGui_ImplOSX_InitMultiViewportSupport()
 
     // Register main window handle (which is owned by the main application, not by us)
     ImGuiViewport* main_viewport = ImGui::GetMainViewport();
-    ImGui_ImplOSX_ViewportData* vd = IM_NEW(ImGui_ImplOSX_ViewportData)();
-    vd->Window = bd->Window;
-    vd->WindowOwned = false;
-    main_viewport->PlatformUserData = vd;
+    ImGuiViewportDataOSX* data = IM_NEW(ImGuiViewportDataOSX)();
+    data->Window = bd->Window;
+    data->WindowOwned = false;
+    main_viewport->PlatformUserData = data;
     main_viewport->PlatformHandle = (__bridge void*)bd->Window;
 
     [NSNotificationCenter.defaultCenter addObserver:bd->Observer
@@ -1160,8 +1146,8 @@ static void ImGui_ImplOSX_ShutdownMultiViewportSupport()
     }
 
     ImGuiViewport* main_viewport = ImGui::GetMainViewport();
-    ImGui_ImplOSX_ViewportData* vd = (ImGui_ImplOSX_ViewportData*)main_viewport->PlatformUserData;
-    IM_DELETE(vd);
+    ImGuiViewportDataOSX* data = (ImGuiViewportDataOSX*)main_viewport->PlatformUserData;
+    IM_DELETE(data);
     main_viewport->PlatformUserData = nullptr;
     ImGui::DestroyPlatformWindows();
 }

backends/imgui_impl_sdl2.cpp

@@ -7,13 +7,13 @@
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-//  [X] Platform: Basic IME support. App needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
 //  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+//  [x] Platform: Basic IME support. App needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -25,21 +25,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-07-08: Made ImGui_ImplSDL2_GetContentScaleForWindow(), ImGui_ImplSDL2_GetContentScaleForDisplay() helpers return 1.0f on Emscripten and Android platforms, matching macOS logic. (#8742, #8733)
-//  2025-06-11: Added ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window) and ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index) helper to facilitate making DPI-aware apps.
-//  2025-05-15: [Docking] Add Platform_GetWindowFramebufferScale() handler, to allow varying Retina display density on multiple monitors.
-//  2025-04-09: [Docking] Revert update monitors and work areas information every frame. Only do it on Windows. (#8415, #8558)
-//  2025-04-09: Don't attempt to call SDL_CaptureMouse() on drivers where we don't call SDL_GetGlobalMouseState(). (#8561)
-//  2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
-//  2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
-//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g.Linux debuggers not claiming capture back. (#6410, #3650)
-//  2025-02-25: [Docking] Revert to use SDL_GetDisplayBounds() for WorkPos/WorkRect if SDL_GetDisplayUsableBounds() failed.
-//  2025-02-24: Avoid calling SDL_GetGlobalMouseState() when mouse is in relative mode.
-//  2025-02-21: [Docking] Update monitors and work areas information every frame, as the later may change regardless of monitor changes. (#8415)
-//  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
-//  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
-//  2025-01-20: Made ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode_Manual) accept an empty array.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-10-24: Emscripten: from SDL 2.30.9, SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f.
 //  2024-09-09: use SDL_Vulkan_GetDrawableSize() when available. (#7967, #3190)
 //  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
@@ -114,7 +100,6 @@
 // Clang warnings with -Weverything
 #if defined(__clang__)
 #pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
 #endif
 
@@ -122,14 +107,12 @@
 // (the multi-viewports feature requires SDL features supported from SDL 2.0.4+. SDL 2.0.5+ is highly recommended)
 #include <SDL.h>
 #include <SDL_syswm.h>
-#include <stdio.h>              // for snprintf()
 #ifdef __APPLE__
 #include <TargetConditionals.h>
 #endif
 #ifdef __EMSCRIPTEN__
 #include <emscripten/em_js.h>
 #endif
-#undef Status // X11 headers are leaking this.
 
 #if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
 #define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE    1
@@ -142,7 +125,6 @@
 #define SDL_HAS_PER_MONITOR_DPI             SDL_VERSION_ATLEAST(2,0,4)
 #define SDL_HAS_VULKAN                      SDL_VERSION_ATLEAST(2,0,6)
 #define SDL_HAS_DISPLAY_EVENT               SDL_VERSION_ATLEAST(2,0,9)
-#define SDL_HAS_OPEN_URL                    SDL_VERSION_ATLEAST(2,0,14)
 #define SDL_HAS_SHOW_WINDOW_ACTIVATION_HINT SDL_VERSION_ATLEAST(2,0,18)
 #if SDL_HAS_VULKAN
 #include <SDL_vulkan.h>
@@ -154,11 +136,10 @@ static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
 struct ImGui_ImplSDL2_Data
 {
     SDL_Window*             Window;
-    Uint32                  WindowID;       // Stored in ImGuiViewport::PlatformHandle. Use SDL_GetWindowFromID() to get SDL_Window* from Uint32 WindowID.
+    Uint32                  WindowID;
     SDL_Renderer*           Renderer;
     Uint64                  Time;
     char*                   ClipboardTextData;
-    char                    BackendPlatformName[48];
     bool                    UseVulkan;
     bool                    WantUpdateMonitors;
 
@@ -169,7 +150,6 @@ struct ImGui_ImplSDL2_Data
     SDL_Cursor*             MouseLastCursor;
     int                     MouseLastLeaveFrame;
     bool                    MouseCanUseGlobalState;
-    bool                    MouseCanUseCapture;
     bool                    MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
 
     // Gamepad handling
@@ -227,6 +207,7 @@ static void ImGui_ImplSDL2_PlatformSetImeData(ImGuiContext*, ImGuiViewport* view
 ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode scancode);
 ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode scancode)
 {
+    IM_UNUSED(scancode);
     switch (keycode)
     {
         case SDLK_TAB: return ImGuiKey_Tab;
@@ -244,17 +225,17 @@ ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode sca
         case SDLK_SPACE: return ImGuiKey_Space;
         case SDLK_RETURN: return ImGuiKey_Enter;
         case SDLK_ESCAPE: return ImGuiKey_Escape;
-        //case SDLK_QUOTE: return ImGuiKey_Apostrophe;
+        case SDLK_QUOTE: return ImGuiKey_Apostrophe;
         case SDLK_COMMA: return ImGuiKey_Comma;
-        //case SDLK_MINUS: return ImGuiKey_Minus;
+        case SDLK_MINUS: return ImGuiKey_Minus;
         case SDLK_PERIOD: return ImGuiKey_Period;
-        //case SDLK_SLASH: return ImGuiKey_Slash;
+        case SDLK_SLASH: return ImGuiKey_Slash;
         case SDLK_SEMICOLON: return ImGuiKey_Semicolon;
-        //case SDLK_EQUALS: return ImGuiKey_Equal;
-        //case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
-        //case SDLK_BACKSLASH: return ImGuiKey_Backslash;
-        //case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
-        //case SDLK_BACKQUOTE: return ImGuiKey_GraveAccent;
+        case SDLK_EQUALS: return ImGuiKey_Equal;
+        case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
+        case SDLK_BACKSLASH: return ImGuiKey_Backslash;
+        case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
+        case SDLK_BACKQUOTE: return ImGuiKey_GraveAccent;
         case SDLK_CAPSLOCK: return ImGuiKey_CapsLock;
         case SDLK_SCROLLLOCK: return ImGuiKey_ScrollLock;
         case SDLK_NUMLOCKCLEAR: return ImGuiKey_NumLock;
@@ -350,24 +331,6 @@ ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode sca
         case SDLK_AC_FORWARD: return ImGuiKey_AppForward;
         default: break;
     }
-
-    // Fallback to scancode
-    switch (scancode)
-    {
-    case SDL_SCANCODE_GRAVE: return ImGuiKey_GraveAccent;
-    case SDL_SCANCODE_MINUS: return ImGuiKey_Minus;
-    case SDL_SCANCODE_EQUALS: return ImGuiKey_Equal;
-    case SDL_SCANCODE_LEFTBRACKET: return ImGuiKey_LeftBracket;
-    case SDL_SCANCODE_RIGHTBRACKET: return ImGuiKey_RightBracket;
-    case SDL_SCANCODE_NONUSBACKSLASH: return ImGuiKey_Oem102;
-    case SDL_SCANCODE_BACKSLASH: return ImGuiKey_Backslash;
-    case SDL_SCANCODE_SEMICOLON: return ImGuiKey_Semicolon;
-    case SDL_SCANCODE_APOSTROPHE: return ImGuiKey_Apostrophe;
-    case SDL_SCANCODE_COMMA: return ImGuiKey_Comma;
-    case SDL_SCANCODE_PERIOD: return ImGuiKey_Period;
-    case SDL_SCANCODE_SLASH: return ImGuiKey_Slash;
-    default: break;
-    }
     return ImGuiKey_None;
 }
 
@@ -399,7 +362,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
     {
         case SDL_MOUSEMOTION:
         {
-            if (ImGui_ImplSDL2_GetViewportForWindowID(event->motion.windowID) == nullptr)
+            if (ImGui_ImplSDL2_GetViewportForWindowID(event->motion.windowID) == NULL)
                 return false;
             ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
             if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
@@ -415,7 +378,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         }
         case SDL_MOUSEWHEEL:
         {
-            if (ImGui_ImplSDL2_GetViewportForWindowID(event->wheel.windowID) == nullptr)
+            if (ImGui_ImplSDL2_GetViewportForWindowID(event->wheel.windowID) == NULL)
                 return false;
             //IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
 #if SDL_VERSION_ATLEAST(2,0,18) // If this fails to compile on Emscripten: update to latest Emscripten!
@@ -435,7 +398,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         case SDL_MOUSEBUTTONDOWN:
         case SDL_MOUSEBUTTONUP:
         {
-            if (ImGui_ImplSDL2_GetViewportForWindowID(event->button.windowID) == nullptr)
+            if (ImGui_ImplSDL2_GetViewportForWindowID(event->button.windowID) == NULL)
                 return false;
             int mouse_button = -1;
             if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
@@ -452,7 +415,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         }
         case SDL_TEXTINPUT:
         {
-            if (ImGui_ImplSDL2_GetViewportForWindowID(event->text.windowID) == nullptr)
+            if (ImGui_ImplSDL2_GetViewportForWindowID(event->text.windowID) == NULL)
                 return false;
             io.AddInputCharactersUTF8(event->text.text);
             return true;
@@ -460,15 +423,12 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         case SDL_KEYDOWN:
         case SDL_KEYUP:
         {
-            ImGuiViewport* viewport = ImGui_ImplSDL2_GetViewportForWindowID(event->key.windowID);
-            if (viewport == nullptr)
+            if (ImGui_ImplSDL2_GetViewportForWindowID(event->key.windowID) == NULL)
                 return false;
-            //IMGUI_DEBUG_LOG("SDL_KEY%s : key=0x%08X ('%s'), scancode=%d ('%s'), mod=%X, windowID=%d, viewport=%08X\n",
-            //    (event->type == SDL_KEYDOWN) ? "DOWN" : "UP  ", event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym), event->key.keysym.scancode, SDL_GetScancodeName(event->key.keysym.scancode), event->key.keysym.mod, event->key.windowID, viewport ? viewport->ID : 0);
             ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
             ImGuiKey key = ImGui_ImplSDL2_KeyEventToImGuiKey(event->key.keysym.sym, event->key.keysym.scancode);
             io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
-            io.SetKeyEventNativeData(key, (int)event->key.keysym.sym, (int)event->key.keysym.scancode, (int)event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
+            io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
             return true;
         }
 #if SDL_HAS_DISPLAY_EVENT
@@ -499,17 +459,15 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
             }
             if (window_event == SDL_WINDOWEVENT_LEAVE)
                 bd->MouseLastLeaveFrame = ImGui::GetFrameCount() + 1;
-            //if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED) { IMGUI_DEBUG_LOG("SDL_WINDOWEVENT_FOCUS_GAINED: windowId %d, viewport: %08X\n", event->window.windowID, viewport ? viewport->ID : 0); }
-            //if (window_event == SDL_WINDOWEVENT_FOCUS_LOST) { IMGUI_DEBUG_LOG("SDL_WINDOWEVENT_FOCUS_LOST: windowId %d, viewport: %08X\n", event->window.windowID, viewport ? viewport->ID : 0); }
             if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
                 io.AddFocusEvent(true);
-            if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
+            else if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
                 io.AddFocusEvent(false);
-            if (window_event == SDL_WINDOWEVENT_CLOSE)
+            else if (window_event == SDL_WINDOWEVENT_CLOSE)
                 viewport->PlatformRequestClose = true;
-            if (window_event == SDL_WINDOWEVENT_MOVED)
+            else if (window_event == SDL_WINDOWEVENT_MOVED)
                 viewport->PlatformRequestMove = true;
-            if (window_event == SDL_WINDOWEVENT_RESIZED)
+            else if (window_event == SDL_WINDOWEVENT_RESIZED)
                 viewport->PlatformRequestResize = true;
             return true;
         }
@@ -519,8 +477,6 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
             bd->WantUpdateGamepadsList = true;
             return true;
         }
-        default:
-            break;
     }
     return false;
 }
@@ -534,23 +490,26 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     ImGuiIO& io = ImGui::GetIO();
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
-    //SDL_SetHint(SDL_HINT_EVENT_LOGGING, "2");
 
-    // Obtain compiled and runtime versions
-    SDL_version ver_compiled;
-    SDL_version ver_runtime;
-    SDL_VERSION(&ver_compiled);
-    SDL_GetVersion(&ver_runtime);
+    // Check and store if we are on a SDL backend that supports global mouse position
+    // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
+    bool mouse_can_use_global_state = false;
+#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
+    const char* sdl_backend = SDL_GetCurrentVideoDriver();
+    const char* global_mouse_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
+    for (int n = 0; n < IM_ARRAYSIZE(global_mouse_whitelist); n++)
+        if (strncmp(sdl_backend, global_mouse_whitelist[n], strlen(global_mouse_whitelist[n])) == 0)
+            mouse_can_use_global_state = true;
+#endif
 
     // Setup backend capabilities flags
     ImGui_ImplSDL2_Data* bd = IM_NEW(ImGui_ImplSDL2_Data)();
-    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl2 (%u.%u.%u, %u.%u.%u)",
-        ver_compiled.major, ver_compiled.minor, ver_compiled.patch, ver_runtime.major, ver_runtime.minor, ver_runtime.patch);
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = bd->BackendPlatformName;
+    io.BackendPlatformName = "imgui_impl_sdl2";
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;            // We can honor io.WantSetMousePos requests (optional, rarely used)
-    // (ImGuiBackendFlags_PlatformHasViewports may be set just below)
+    if (mouse_can_use_global_state)
+        io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;  // We can create multi-viewports on the Platform side (optional)
 
     bd->Window = window;
     bd->WindowID = SDL_GetWindowID(window);
@@ -558,26 +517,13 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
 
     // SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)
     // We will use 'MouseCanReportHoveredViewport' to set 'ImGuiBackendFlags_HasMouseHoveredViewport' dynamically each frame.
+    bd->MouseCanUseGlobalState = mouse_can_use_global_state;
 #ifndef __APPLE__
     bd->MouseCanReportHoveredViewport = bd->MouseCanUseGlobalState;
 #else
     bd->MouseCanReportHoveredViewport = false;
 #endif
 
-    // Check and store if we are on a SDL backend that supports SDL_GetGlobalMouseState() and SDL_CaptureMouse()
-    // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
-    bd->MouseCanUseGlobalState = false;
-    bd->MouseCanUseCapture = false;
-#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
-    const char* sdl_backend = SDL_GetCurrentVideoDriver();
-    const char* capture_and_global_state_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
-    for (const char* item : capture_and_global_state_whitelist)
-        if (strncmp(sdl_backend, item, strlen(item)) == 0)
-            bd->MouseCanUseGlobalState = bd->MouseCanUseCapture = true;
-#endif
-    if (bd->MouseCanUseGlobalState)
-        io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;  // We can create multi-viewports on the Platform side (optional)
-
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
     platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
@@ -585,8 +531,6 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     platform_io.Platform_SetImeDataFn = ImGui_ImplSDL2_PlatformSetImeData;
 #ifdef __EMSCRIPTEN__
     platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url); return true; };
-#elif SDL_HAS_OPEN_URL
-    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
 #endif
 
     // Update monitor a first time during init
@@ -605,8 +549,6 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
     bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
     bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
-    bd->MouseCursors[ImGuiMouseCursor_Wait] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_WAIT);
-    bd->MouseCursors[ImGuiMouseCursor_Progress] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_WAITARROW);
     bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
 
     // Set platform dependent data in viewport
@@ -724,17 +666,8 @@ static void ImGui_ImplSDL2_UpdateMouseData()
 
     // We forward mouse input when hovered or captured (via SDL_MOUSEMOTION) or when focused (below)
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
-    // - SDL_CaptureMouse() let the OS know e.g. that our drags can extend outside of parent boundaries (we want updated position) and shouldn't trigger other operations outside.
-    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue we wait until mouse has moved to begin capture.
-    if (bd->MouseCanUseCapture)
-    {
-        bool want_capture = false;
-        for (int button_n = 0; button_n < ImGuiMouseButton_COUNT && !want_capture; button_n++)
-            if (ImGui::IsMouseDragging(button_n, 1.0f))
-                want_capture = true;
-        SDL_CaptureMouse(want_capture ? SDL_TRUE : SDL_FALSE);
-    }
-
+    // SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger other operations outside
+    SDL_CaptureMouse((bd->MouseButtonsDown != 0) ? SDL_TRUE : SDL_FALSE);
     SDL_Window* focused_window = SDL_GetKeyboardFocus();
     const bool is_app_focused = (focused_window && (bd->Window == focused_window || ImGui_ImplSDL2_GetViewportForWindowID(SDL_GetWindowID(focused_window)) != NULL));
 #else
@@ -756,8 +689,7 @@ static void ImGui_ImplSDL2_UpdateMouseData()
         }
 
         // (Optional) Fallback to provide mouse position when focused (SDL_MOUSEMOTION already provides this when hovered or captured)
-        const bool is_relative_mouse_mode = SDL_GetRelativeMouseMode() != 0;
-        if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
+        if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0)
         {
             // Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
             // Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
@@ -815,27 +747,6 @@ static void ImGui_ImplSDL2_UpdateMouseCursor()
     }
 }
 
-// - On Windows the process needs to be marked DPI-aware!! SDL2 doesn't do it by default. You can call ::SetProcessDPIAware() or call ImGui_ImplWin32_EnableDpiAwareness() from Win32 backend.
-// - Apple platforms use FramebufferScale so we always return 1.0f.
-// - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
-float ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window)
-{
-    return ImGui_ImplSDL2_GetContentScaleForDisplay(SDL_GetWindowDisplayIndex(window));
-}
-
-float ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index)
-{
-#if SDL_HAS_PER_MONITOR_DPI
-#if !defined(__APPLE__) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__)
-    float dpi = 0.0f;
-    if (SDL_GetDisplayDPI(display_index, &dpi, nullptr, nullptr) == 0)
-        return dpi / 96.0f;
-#endif
-#endif
-    IM_UNUSED(display_index);
-    return 1.0f;
-}
-
 static void ImGui_ImplSDL2_CloseGamepads()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
@@ -851,7 +762,7 @@ void ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_
     ImGui_ImplSDL2_CloseGamepads();
     if (mode == ImGui_ImplSDL2_GamepadMode_Manual)
     {
-        IM_ASSERT(manual_gamepads_array != nullptr || manual_gamepads_count <= 0);
+        IM_ASSERT(manual_gamepads_array != nullptr && manual_gamepads_count > 0);
         for (int n = 0; n < manual_gamepads_count; n++)
             bd->Gamepads.push_back(manual_gamepads_array[n]);
     }
@@ -905,6 +816,9 @@ static void ImGui_ImplSDL2_UpdateGamepads()
         bd->WantUpdateGamepadsList = false;
     }
 
+    // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
+        return;
     io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
     if (bd->Gamepads.Size == 0)
         return;
@@ -955,55 +869,51 @@ static void ImGui_ImplSDL2_UpdateMonitors()
         monitor.MainPos = monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
         monitor.MainSize = monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
 #if SDL_HAS_USABLE_DISPLAY_BOUNDS
-        if (SDL_GetDisplayUsableBounds(n, &r) == 0 && r.w > 0 && r.h > 0)
+        SDL_GetDisplayUsableBounds(n, &r);
+        monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
+        monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
+#endif
+#if SDL_HAS_PER_MONITOR_DPI
+        // FIXME-VIEWPORT: On MacOS SDL reports actual monitor DPI scale, ignoring OS configuration. We may want to set
+        //  DpiScale to cocoa_window.backingScaleFactor here.
+        float dpi = 0.0f;
+        if (!SDL_GetDisplayDPI(n, &dpi, nullptr, nullptr))
         {
-            monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
-            monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
+            if (dpi <= 0.0f)
+                continue; // Some accessibility applications are declaring virtual monitors with a DPI of 0, see #7902.
+            monitor.DpiScale = dpi / 96.0f;
         }
 #endif
-        float dpi_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(n);
-        if (dpi_scale <= 0.0f)
-            continue; // Some accessibility applications are declaring virtual monitors with a DPI of 0, see #7902.
-        monitor.DpiScale = dpi_scale;
         monitor.PlatformHandle = (void*)(intptr_t)n;
         platform_io.Monitors.push_back(monitor);
     }
 }
 
-static void ImGui_ImplSDL2_GetWindowSizeAndFramebufferScale(SDL_Window* window, SDL_Renderer* renderer, ImVec2* out_size, ImVec2* out_framebuffer_scale)
-{
-    int w, h;
-    int display_w, display_h;
-    SDL_GetWindowSize(window, &w, &h);
-    if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
-        w = h = 0;
-    if (renderer != nullptr)
-        SDL_GetRendererOutputSize(renderer, &display_w, &display_h);
-#if SDL_HAS_VULKAN
-    else if (SDL_GetWindowFlags(window) & SDL_WINDOW_VULKAN)
-        SDL_Vulkan_GetDrawableSize(window, &display_w, &display_h);
-#endif
-    else
-        SDL_GL_GetDrawableSize(window, &display_w, &display_h);
-    if (out_size != nullptr)
-        *out_size = ImVec2((float)w, (float)h);
-    if (out_framebuffer_scale != nullptr)
-        *out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / w, (float)display_h / h) : ImVec2(1.0f, 1.0f);
-}
-
 void ImGui_ImplSDL2_NewFrame()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
     ImGuiIO& io = ImGui::GetIO();
 
-    // Setup main viewport size (every frame to accommodate for window resizing)
-    ImGui_ImplSDL2_GetWindowSizeAndFramebufferScale(bd->Window, bd->Renderer, &io.DisplaySize, &io.DisplayFramebufferScale);
+    // Setup display size (every frame to accommodate for window resizing)
+    int w, h;
+    int display_w, display_h;
+    SDL_GetWindowSize(bd->Window, &w, &h);
+    if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
+        w = h = 0;
+    if (bd->Renderer != nullptr)
+        SDL_GetRendererOutputSize(bd->Renderer, &display_w, &display_h);
+#if SDL_HAS_VULKAN
+    else if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_VULKAN)
+        SDL_Vulkan_GetDrawableSize(bd->Window, &display_w, &display_h);
+#endif
+    else
+        SDL_GL_GetDrawableSize(bd->Window, &display_w, &display_h);
+    io.DisplaySize = ImVec2((float)w, (float)h);
+    if (w > 0 && h > 0)
+        io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
 
     // Update monitors
-#ifdef WIN32
-    bd->WantUpdateMonitors = true; // Keep polling under Windows to handle changes of work area when resizing task-bar (#8415)
-#endif
     if (bd->WantUpdateMonitors)
         ImGui_ImplSDL2_UpdateMonitors();
 
@@ -1043,16 +953,16 @@ void ImGui_ImplSDL2_NewFrame()
 // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
 //--------------------------------------------------------------------------------------------------------
 
-// Helper structure we store in the void* PlatformUserData field of each ImGuiViewport to easily retrieve our backend data.
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
 struct ImGui_ImplSDL2_ViewportData
 {
     SDL_Window*     Window;
-    Uint32          WindowID;       // Stored in ImGuiViewport::PlatformHandle. Use SDL_GetWindowFromID() to get SDL_Window* from Uint32 WindowID.
+    Uint32          WindowID;
     bool            WindowOwned;
     SDL_GLContext   GLContext;
 
-    ImGui_ImplSDL2_ViewportData()   { Window = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
-    ~ImGui_ImplSDL2_ViewportData()  { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
+    ImGui_ImplSDL2_ViewportData() { Window = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
+    ~ImGui_ImplSDL2_ViewportData() { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
 };
 
 static void ImGui_ImplSDL2_CreateWindow(ImGuiViewport* viewport)
@@ -1129,7 +1039,7 @@ static void ImGui_ImplSDL2_DestroyWindow(ImGuiViewport* viewport)
 static void ImGui_ImplSDL2_ShowWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
-#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && ((defined(WINAPI_FAMILY_APP) && WINAPI_FAMILY == WINAPI_FAMILY_APP) || (defined(WINAPI_FAMILY_GAMES) && WINAPI_FAMILY == WINAPI_FAMILY_GAMES)))
+#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP || WINAPI_FAMILY == WINAPI_FAMILY_GAMES))
     HWND hwnd = (HWND)viewport->PlatformHandleRaw;
 
     // SDL hack: Hide icon from task bar
@@ -1184,15 +1094,6 @@ static void ImGui_ImplSDL2_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
     SDL_SetWindowSize(vd->Window, (int)size.x, (int)size.y);
 }
 
-static ImVec2 ImGui_ImplSDL2_GetWindowFramebufferScale(ImGuiViewport* viewport)
-{
-    // FIXME: SDL_Renderer does not support multi-viewport.
-    ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
-    ImVec2 framebuffer_scale;
-    ImGui_ImplSDL2_GetWindowSizeAndFramebufferScale(vd->Window, nullptr, nullptr, &framebuffer_scale);
-    return framebuffer_scale;
-}
-
 static void ImGui_ImplSDL2_SetWindowTitle(ImGuiViewport* viewport, const char* title)
 {
     ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
@@ -1266,7 +1167,6 @@ static void ImGui_ImplSDL2_InitMultiViewportSupport(SDL_Window* window, void* sd
     platform_io.Platform_GetWindowPos = ImGui_ImplSDL2_GetWindowPos;
     platform_io.Platform_SetWindowSize = ImGui_ImplSDL2_SetWindowSize;
     platform_io.Platform_GetWindowSize = ImGui_ImplSDL2_GetWindowSize;
-    platform_io.Platform_GetWindowFramebufferScale = ImGui_ImplSDL2_GetWindowFramebufferScale;
     platform_io.Platform_SetWindowFocus = ImGui_ImplSDL2_SetWindowFocus;
     platform_io.Platform_GetWindowFocus = ImGui_ImplSDL2_GetWindowFocus;
     platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL2_GetWindowMinimized;

backends/imgui_impl_sdl2.h

@@ -6,13 +6,13 @@
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
-//  [X] Platform: Basic IME support. App needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
 //  [ ] Platform: Multi-viewport: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+//  [x] Platform: Basic IME support. App needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -42,13 +42,9 @@ IMGUI_IMPL_API void     ImGui_ImplSDL2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDL2_NewFrame();
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);
 
-// DPI-related helpers (optional)
-IMGUI_IMPL_API float    ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window);
-IMGUI_IMPL_API float    ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index);
-
 // Gamepad selection automatically starts in AutoFirst mode, picking first available SDL_Gamepad. You may override this.
 // When using manual mode, caller is responsible for opening/closing gamepad.
 enum ImGui_ImplSDL2_GamepadMode { ImGui_ImplSDL2_GamepadMode_AutoFirst, ImGui_ImplSDL2_GamepadMode_AutoAll, ImGui_ImplSDL2_GamepadMode_Manual };
-IMGUI_IMPL_API void     ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
+IMGUI_IMPL_API void     ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array = NULL, int manual_gamepads_count = -1);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdl3.cpp

@@ -1,17 +1,18 @@
-// dear imgui: Platform Backend for SDL3
-// This needs to be used along with a Renderer (e.g. SDL_GPU, DirectX11, OpenGL3, Vulkan..)
+// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
+// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 // (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
 
+// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
+
 // Implemented features:
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
-//  [x] Platform: IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -23,25 +24,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-27: IME: avoid calling SDL_StartTextInput() again if already active. (#8727)
-//  2025-05-15: [Docking] Add Platform_GetWindowFramebufferScale() handler, to allow varying Retina display density on multiple monitors.
-//  2025-05-06: [Docking] macOS: fixed secondary viewports not appearing on other monitors before of parenting.
-//  2025-04-09: [Docking] Revert update monitors and work areas information every frame. Only do it on Windows. (#8415, #8558)
-//  2025-04-22: IME: honor ImGuiPlatformImeData->WantTextInput as an alternative way to call SDL_StartTextInput(), without IME being necessarily visible.
-//  2025-04-09: Don't attempt to call SDL_CaptureMouse() on drivers where we don't call SDL_GetGlobalMouseState(). (#8561)
-//  2025-03-30: Update for SDL3 api changes: Revert SDL_GetClipboardText() memory ownership change. (#8530, #7801)
-//  2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
-//  2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
-//  2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g.Linux debuggers not claiming capture back. (#6410, #3650)
-//  2025-02-25: [Docking] Revert to use SDL_GetDisplayBounds() for WorkPos/WorkRect if SDL_GetDisplayUsableBounds() failed.
-//  2025-02-24: Avoid calling SDL_GetGlobalMouseState() when mouse is in relative mode.
-//  2025-02-21: [Docking] Update monitors and work areas information every frame, as the later may change regardless of monitor changes. (#8415)
-//  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
-//  2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
-//  2025-01-20: Made ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode_Manual) accept an empty array.
-//  2024-10-24: Emscripten: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f on Emscripten.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-09-11: (Docking) Added support for viewport->ParentViewportId field to support parenting at OS level. (#7973)
+//  2024-10-24: Emscripten: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f on Emscripten.
 //  2024-09-03: Update for SDL3 api changes: SDL_GetGamepads() memory ownership revert. (#7918, #7898, #7807)
 //  2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
 //               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
@@ -75,13 +60,11 @@
 // Clang warnings with -Weverything
 #if defined(__clang__)
 #pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
 #endif
 
 // SDL
 #include <SDL3/SDL.h>
-#include <stdio.h>              // for snprintf()
 #if defined(__APPLE__)
 #include <TargetConditionals.h>
 #endif
@@ -114,7 +97,6 @@ struct ImGui_ImplSDL3_Data
     SDL_Renderer*           Renderer;
     Uint64                  Time;
     char*                   ClipboardTextData;
-    char                    BackendPlatformName[48];
     bool                    UseVulkan;
     bool                    WantUpdateMonitors;
 
@@ -128,7 +110,6 @@ struct ImGui_ImplSDL3_Data
     SDL_Cursor*             MouseLastCursor;
     int                     MousePendingLeaveFrame;
     bool                    MouseCanUseGlobalState;
-    bool                    MouseCanUseCapture;
     bool                    MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
 
     // Gamepad handling
@@ -159,7 +140,8 @@ static const char* ImGui_ImplSDL3_GetClipboardText(ImGuiContext*)
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
     if (bd->ClipboardTextData)
         SDL_free(bd->ClipboardTextData);
-    bd->ClipboardTextData = SDL_GetClipboardText();
+    const char* sdl_clipboard_text = SDL_GetClipboardText();
+    bd->ClipboardTextData = sdl_clipboard_text ? SDL_strdup(sdl_clipboard_text) : NULL;
     return bd->ClipboardTextData;
 }
 
@@ -173,7 +155,7 @@ static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* view
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
     SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
     SDL_Window* window = SDL_GetWindowFromID(window_id);
-    if ((!(data->WantVisible || data->WantTextInput) || bd->ImeWindow != window) && bd->ImeWindow != nullptr)
+    if ((data->WantVisible == false || bd->ImeWindow != window) && bd->ImeWindow != NULL)
     {
         SDL_StopTextInput(bd->ImeWindow);
         bd->ImeWindow = nullptr;
@@ -186,10 +168,9 @@ static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* view
         r.w = 1;
         r.h = (int)data->InputLineHeight;
         SDL_SetTextInputArea(window, &r, 0);
+        SDL_StartTextInput(window);
         bd->ImeWindow = window;
     }
-    if (!SDL_TextInputActive(window) && (data->WantVisible || data->WantTextInput))
-        SDL_StartTextInput(window);
 }
 
 // Not static to allow third-party code to use that if they want to (but undocumented)
@@ -235,17 +216,17 @@ ImGuiKey ImGui_ImplSDL3_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode sca
         case SDLK_SPACE: return ImGuiKey_Space;
         case SDLK_RETURN: return ImGuiKey_Enter;
         case SDLK_ESCAPE: return ImGuiKey_Escape;
-        //case SDLK_APOSTROPHE: return ImGuiKey_Apostrophe;
+        case SDLK_APOSTROPHE: return ImGuiKey_Apostrophe;
         case SDLK_COMMA: return ImGuiKey_Comma;
-        //case SDLK_MINUS: return ImGuiKey_Minus;
+        case SDLK_MINUS: return ImGuiKey_Minus;
         case SDLK_PERIOD: return ImGuiKey_Period;
-        //case SDLK_SLASH: return ImGuiKey_Slash;
+        case SDLK_SLASH: return ImGuiKey_Slash;
         case SDLK_SEMICOLON: return ImGuiKey_Semicolon;
-        //case SDLK_EQUALS: return ImGuiKey_Equal;
-        //case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
-        //case SDLK_BACKSLASH: return ImGuiKey_Backslash;
-        //case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
-        //case SDLK_GRAVE: return ImGuiKey_GraveAccent;
+        case SDLK_EQUALS: return ImGuiKey_Equal;
+        case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
+        case SDLK_BACKSLASH: return ImGuiKey_Backslash;
+        case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
+        case SDLK_GRAVE: return ImGuiKey_GraveAccent;
         case SDLK_CAPSLOCK: return ImGuiKey_CapsLock;
         case SDLK_SCROLLLOCK: return ImGuiKey_ScrollLock;
         case SDLK_NUMLOCKCLEAR: return ImGuiKey_NumLock;
@@ -324,24 +305,6 @@ ImGuiKey ImGui_ImplSDL3_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode sca
         case SDLK_AC_FORWARD: return ImGuiKey_AppForward;
         default: break;
     }
-
-    // Fallback to scancode
-    switch (scancode)
-    {
-    case SDL_SCANCODE_GRAVE: return ImGuiKey_GraveAccent;
-    case SDL_SCANCODE_MINUS: return ImGuiKey_Minus;
-    case SDL_SCANCODE_EQUALS: return ImGuiKey_Equal;
-    case SDL_SCANCODE_LEFTBRACKET: return ImGuiKey_LeftBracket;
-    case SDL_SCANCODE_RIGHTBRACKET: return ImGuiKey_RightBracket;
-    case SDL_SCANCODE_NONUSBACKSLASH: return ImGuiKey_Oem102;
-    case SDL_SCANCODE_BACKSLASH: return ImGuiKey_Backslash;
-    case SDL_SCANCODE_SEMICOLON: return ImGuiKey_Semicolon;
-    case SDL_SCANCODE_APOSTROPHE: return ImGuiKey_Apostrophe;
-    case SDL_SCANCODE_COMMA: return ImGuiKey_Comma;
-    case SDL_SCANCODE_PERIOD: return ImGuiKey_Period;
-    case SDL_SCANCODE_SLASH: return ImGuiKey_Slash;
-    default: break;
-    }
     return ImGuiKey_None;
 }
 
@@ -373,7 +336,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
     {
         case SDL_EVENT_MOUSE_MOTION:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->motion.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->motion.windowID) == NULL)
                 return false;
             ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
             if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
@@ -389,7 +352,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         }
         case SDL_EVENT_MOUSE_WHEEL:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->wheel.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->wheel.windowID) == NULL)
                 return false;
             //IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
             float wheel_x = -event->wheel.x;
@@ -401,7 +364,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         case SDL_EVENT_MOUSE_BUTTON_DOWN:
         case SDL_EVENT_MOUSE_BUTTON_UP:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->button.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->button.windowID) == NULL)
                 return false;
             int mouse_button = -1;
             if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
@@ -418,7 +381,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         }
         case SDL_EVENT_TEXT_INPUT:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->text.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->text.windowID) == NULL)
                 return false;
             io.AddInputCharactersUTF8(event->text.text);
             return true;
@@ -426,15 +389,13 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         case SDL_EVENT_KEY_DOWN:
         case SDL_EVENT_KEY_UP:
         {
-            ImGuiViewport* viewport = ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID);
-            if (viewport == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID) == NULL)
                 return false;
-            //IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%s : key=0x%08X ('%s'), scancode=%d ('%s'), mod=%X, windowID=%d, viewport=%08X\n",
-            //    (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP  ", event->key.key, SDL_GetKeyName(event->key.key), event->key.scancode, SDL_GetScancodeName(event->key.scancode), event->key.mod, event->key.windowID, viewport ? viewport->ID : 0);
+            //IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%d: key=%d, scancode=%d, mod=%X\n", (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP", event->key.key, event->key.scancode, event->key.mod);
             ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.mod);
             ImGuiKey key = ImGui_ImplSDL3_KeyEventToImGuiKey(event->key.key, event->key.scancode);
             io.AddKeyEvent(key, (event->type == SDL_EVENT_KEY_DOWN));
-            io.SetKeyEventNativeData(key, (int)event->key.key, (int)event->key.scancode, (int)event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
+            io.SetKeyEventNativeData(key, event->key.key, event->key.scancode, event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
             return true;
         }
         case SDL_EVENT_DISPLAY_ORIENTATION:
@@ -448,7 +409,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         }
         case SDL_EVENT_WINDOW_MOUSE_ENTER:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
                 return false;
             bd->MouseWindowID = event->window.windowID;
             bd->MousePendingLeaveFrame = 0;
@@ -460,7 +421,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         // FIXME: Unconfirmed whether this is still needed with SDL3.
         case SDL_EVENT_WINDOW_MOUSE_LEAVE:
         {
-            if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
                 return false;
             bd->MousePendingLeaveFrame = ImGui::GetFrameCount() + 1;
             return true;
@@ -468,10 +429,8 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         case SDL_EVENT_WINDOW_FOCUS_GAINED:
         case SDL_EVENT_WINDOW_FOCUS_LOST:
         {
-            ImGuiViewport* viewport = ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID);
-            if (viewport == nullptr)
+            if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == NULL)
                 return false;
-            //IMGUI_DEBUG_LOG("%s: windowId %d, viewport: %08X\n", (event->type == SDL_EVENT_WINDOW_FOCUS_GAINED) ? "SDL_EVENT_WINDOW_FOCUS_GAINED" : "SDL_WINDOWEVENT_FOCUS_LOST", event->window.windowID, viewport ? viewport->ID : 0);
             io.AddFocusEvent(event->type == SDL_EVENT_WINDOW_FOCUS_GAINED);
             return true;
         }
@@ -496,8 +455,6 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
             bd->WantUpdateGamepadsList = true;
             return true;
         }
-        default:
-            break;
     }
     return false;
 }
@@ -508,7 +465,7 @@ static void ImGui_ImplSDL3_SetupPlatformHandles(ImGuiViewport* viewport, SDL_Win
     viewport->PlatformHandleRaw = nullptr;
 #if defined(_WIN32) && !defined(__WINRT__)
     viewport->PlatformHandleRaw = (HWND)SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_WIN32_HWND_POINTER, nullptr);
-#elif defined(__APPLE__)
+#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
     viewport->PlatformHandleRaw = SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_COCOA_WINDOW_POINTER, nullptr);
 #endif
 }
@@ -519,19 +476,26 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     IMGUI_CHECKVERSION();
     IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
     IM_UNUSED(sdl_gl_context); // Unused in this branch
-    //SDL_SetHint(SDL_HINT_EVENT_LOGGING, "2");
 
-    const int ver_linked = SDL_GetVersion();
+    // Check and store if we are on a SDL backend that supports global mouse position
+    // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
+    bool mouse_can_use_global_state = false;
+#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
+    const char* sdl_backend = SDL_GetCurrentVideoDriver();
+    const char* global_mouse_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
+    for (int n = 0; n < IM_ARRAYSIZE(global_mouse_whitelist); n++)
+        if (strncmp(sdl_backend, global_mouse_whitelist[n], strlen(global_mouse_whitelist[n])) == 0)
+            mouse_can_use_global_state = true;
+#endif
 
     // Setup backend capabilities flags
     ImGui_ImplSDL3_Data* bd = IM_NEW(ImGui_ImplSDL3_Data)();
-    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_sdl3 (%d.%d.%d; %d.%d.%d)",
-        SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_MICRO_VERSION, SDL_VERSIONNUM_MAJOR(ver_linked), SDL_VERSIONNUM_MINOR(ver_linked), SDL_VERSIONNUM_MICRO(ver_linked));
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = bd->BackendPlatformName;
+    io.BackendPlatformName = "imgui_impl_sdl3";
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;            // We can honor io.WantSetMousePos requests (optional, rarely used)
-    // (ImGuiBackendFlags_PlatformHasViewports may be set just below)
+    if (mouse_can_use_global_state)
+        io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;  // We can create multi-viewports on the Platform side (optional)
 
     bd->Window = window;
     bd->WindowID = SDL_GetWindowID(window);
@@ -539,31 +503,17 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
 
     // SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)
     // We will use 'MouseCanReportHoveredViewport' to set 'ImGuiBackendFlags_HasMouseHoveredViewport' dynamically each frame.
+    bd->MouseCanUseGlobalState = mouse_can_use_global_state;
 #ifndef __APPLE__
     bd->MouseCanReportHoveredViewport = bd->MouseCanUseGlobalState;
 #else
     bd->MouseCanReportHoveredViewport = false;
 #endif
 
-    // Check and store if we are on a SDL backend that supports SDL_GetGlobalMouseState() and SDL_CaptureMouse()
-    // ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
-    bd->MouseCanUseGlobalState = false;
-    bd->MouseCanUseCapture = false;
-#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
-    const char* sdl_backend = SDL_GetCurrentVideoDriver();
-    const char* capture_and_global_state_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
-    for (const char* item : capture_and_global_state_whitelist)
-        if (strncmp(sdl_backend, item, strlen(item)) == 0)
-            bd->MouseCanUseGlobalState = bd->MouseCanUseCapture = true;
-#endif
-    if (bd->MouseCanUseGlobalState)
-        io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;  // We can create multi-viewports on the Platform side (optional)
-
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
     platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
     platform_io.Platform_SetImeDataFn = ImGui_ImplSDL3_PlatformSetImeData;
-    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
 
     // Update monitor a first time during init
     ImGui_ImplSDL3_UpdateMonitors();
@@ -581,8 +531,6 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NESW_RESIZE);
     bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NWSE_RESIZE);
     bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_POINTER);
-    bd->MouseCursors[ImGuiMouseCursor_Wait] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_WAIT);
-    bd->MouseCursors[ImGuiMouseCursor_Progress] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_PROGRESS);
     bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NOT_ALLOWED);
 
     // Set platform dependent data in viewport
@@ -594,7 +542,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     // Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
     // (This is unfortunately a global SDL setting, so enabling it might have a side-effect on your application.
     // It is unlikely to make a difference, but if your app absolutely needs to ignore the initial on-focus click:
-    // you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_EVENT_WINDOW_FOCUS_GAINED)
+    // you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_WINDOWEVENT_FOCUS_GAINED)
     SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
 
     // From 2.0.22: Disable auto-capture, this is preventing drag and drop across multiple windows (see #5710)
@@ -644,11 +592,6 @@ bool ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* rendere
     return ImGui_ImplSDL3_Init(window, renderer, nullptr);
 }
 
-bool ImGui_ImplSDL3_InitForSDLGPU(SDL_Window* window)
-{
-    return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
-}
-
 bool ImGui_ImplSDL3_InitForOther(SDL_Window* window)
 {
     return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
@@ -684,17 +627,8 @@ static void ImGui_ImplSDL3_UpdateMouseData()
 
     // We forward mouse input when hovered or captured (via SDL_EVENT_MOUSE_MOTION) or when focused (below)
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
-    // - SDL_CaptureMouse() let the OS know e.g. that our drags can extend outside of parent boundaries (we want updated position) and shouldn't trigger other operations outside.
-    // - Debuggers under Linux tends to leave captured mouse on break, which may be very inconvenient, so to mitigate the issue we wait until mouse has moved to begin capture.
-    if (bd->MouseCanUseCapture)
-    {
-        bool want_capture = false;
-        for (int button_n = 0; button_n < ImGuiMouseButton_COUNT && !want_capture; button_n++)
-            if (ImGui::IsMouseDragging(button_n, 1.0f))
-                want_capture = true;
-        SDL_CaptureMouse(want_capture);
-    }
-
+    // SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger other operations outside
+    SDL_CaptureMouse(bd->MouseButtonsDown != 0);
     SDL_Window* focused_window = SDL_GetKeyboardFocus();
     const bool is_app_focused = (focused_window && (bd->Window == focused_window || ImGui_ImplSDL3_GetViewportForWindowID(SDL_GetWindowID(focused_window)) != NULL));
 #else
@@ -715,8 +649,7 @@ static void ImGui_ImplSDL3_UpdateMouseData()
         }
 
         // (Optional) Fallback to provide mouse position when focused (SDL_EVENT_MOUSE_MOTION already provides this when hovered or captured)
-        const bool is_relative_mouse_mode = SDL_GetWindowRelativeMouseMode(bd->Window);
-        if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
+        if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0)
         {
             // Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
             // Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
@@ -790,7 +723,7 @@ void ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad*
     ImGui_ImplSDL3_CloseGamepads();
     if (mode == ImGui_ImplSDL3_GamepadMode_Manual)
     {
-        IM_ASSERT(manual_gamepads_array != nullptr || manual_gamepads_count <= 0);
+        IM_ASSERT(manual_gamepads_array != nullptr && manual_gamepads_count > 0);
         for (int n = 0; n < manual_gamepads_count; n++)
             bd->Gamepads.push_back(manual_gamepads_array[n]);
     }
@@ -845,6 +778,9 @@ static void ImGui_ImplSDL3_UpdateGamepads()
         SDL_free(sdl_gamepads);
     }
 
+    // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
+        return;
     io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
     if (bd->Gamepads.Size == 0)
         return;
@@ -896,12 +832,12 @@ static void ImGui_ImplSDL3_UpdateMonitors()
         SDL_GetDisplayBounds(display_id, &r);
         monitor.MainPos = monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
         monitor.MainSize = monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
-        if (SDL_GetDisplayUsableBounds(display_id, &r) && r.w > 0 && r.h > 0)
-        {
-            monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
-            monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
-        }
-        monitor.DpiScale = SDL_GetDisplayContentScale(display_id); // See https://wiki.libsdl.org/SDL3/README-highdpi for details.
+        SDL_GetDisplayUsableBounds(display_id, &r);
+        monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
+        monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
+        // FIXME-VIEWPORT: On MacOS SDL reports actual monitor DPI scale, ignoring OS configuration. We may want to set
+        //  DpiScale to cocoa_window.backingScaleFactor here.
+        monitor.DpiScale = SDL_GetDisplayContentScale(display_id);
         monitor.PlatformHandle = (void*)(intptr_t)n;
         if (monitor.DpiScale <= 0.0f)
             continue; // Some accessibility applications are declaring virtual monitors with a DPI of 0, see #7902.
@@ -910,37 +846,28 @@ static void ImGui_ImplSDL3_UpdateMonitors()
     SDL_free(displays);
 }
 
-static void ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(SDL_Window* window, ImVec2* out_size, ImVec2* out_framebuffer_scale)
-{
-    int w, h;
-    int display_w, display_h;
-    SDL_GetWindowSize(window, &w, &h);
-    if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
-        w = h = 0;
-    SDL_GetWindowSizeInPixels(window, &display_w, &display_h);
-    if (out_size != nullptr)
-        *out_size = ImVec2((float)w, (float)h);
-    if (out_framebuffer_scale != nullptr)
-        *out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / w, (float)display_h / h) : ImVec2(1.0f, 1.0f);
-}
-
 void ImGui_ImplSDL3_NewFrame()
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL3_Init()?");
     ImGuiIO& io = ImGui::GetIO();
 
-    // Setup main viewport size (every frame to accommodate for window resizing)
-    ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(bd->Window, &io.DisplaySize, &io.DisplayFramebufferScale);
+    // Setup display size (every frame to accommodate for window resizing)
+    int w, h;
+    int display_w, display_h;
+    SDL_GetWindowSize(bd->Window, &w, &h);
+    if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
+        w = h = 0;
+    SDL_GetWindowSizeInPixels(bd->Window, &display_w, &display_h);
+    io.DisplaySize = ImVec2((float)w, (float)h);
+    if (w > 0 && h > 0)
+        io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
 
     // Update monitors
-#ifdef WIN32
-    bd->WantUpdateMonitors = true; // Keep polling under Windows to handle changes of work area when resizing task-bar (#8415)
-#endif
     if (bd->WantUpdateMonitors)
         ImGui_ImplSDL3_UpdateMonitors();
 
-    // Setup time step (we could also use SDL_GetTicksNS() available since SDL3)
+    // Setup time step (we don't use SDL_GetTicks() because it is using millisecond resolution)
     // (Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. Happens in VMs and Emscripten, see #6189, #6114, #3644)
     static Uint64 frequency = SDL_GetPerformanceFrequency();
     Uint64 current_time = SDL_GetPerformanceCounter();
@@ -976,17 +903,17 @@ void ImGui_ImplSDL3_NewFrame()
 // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
 //--------------------------------------------------------------------------------------------------------
 
-// Helper structure we store in the void* PlatformUserData field of each ImGuiViewport to easily retrieve our backend data.
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
 struct ImGui_ImplSDL3_ViewportData
 {
     SDL_Window*     Window;
     SDL_Window*     ParentWindow;
-    Uint32          WindowID;       // Stored in ImGuiViewport::PlatformHandle. Use SDL_GetWindowFromID() to get SDL_Window* from Uint32 WindowID.
+    Uint32          WindowID;
     bool            WindowOwned;
     SDL_GLContext   GLContext;
 
-    ImGui_ImplSDL3_ViewportData()   { Window = ParentWindow = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
-    ~ImGui_ImplSDL3_ViewportData()  { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
+    ImGui_ImplSDL3_ViewportData() { Window = ParentWindow = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
+    ~ImGui_ImplSDL3_ViewportData() { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
 };
 
 static SDL_Window* ImGui_ImplSDL3_GetSDLWindowFromViewportID(ImGuiID viewport_id)
@@ -1022,7 +949,6 @@ static void ImGui_ImplSDL3_CreateWindow(ImGuiViewport* viewport)
     }
 
     SDL_WindowFlags sdl_flags = 0;
-    sdl_flags |= SDL_WINDOW_HIDDEN;
     sdl_flags |= use_opengl ? SDL_WINDOW_OPENGL : (bd->UseVulkan ? SDL_WINDOW_VULKAN : 0);
     sdl_flags |= SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_HIGH_PIXEL_DENSITY;
     sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? SDL_WINDOW_BORDERLESS : 0;
@@ -1030,9 +956,7 @@ static void ImGui_ImplSDL3_CreateWindow(ImGuiViewport* viewport)
     sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) ? SDL_WINDOW_UTILITY : 0;
     sdl_flags |= (viewport->Flags & ImGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
     vd->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
-#ifndef __APPLE__ // On Mac, SDL3 Parenting appears to prevent viewport from appearing in another monitor
     SDL_SetWindowParent(vd->Window, vd->ParentWindow);
-#endif
     SDL_SetWindowPosition(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y);
     vd->WindowOwned = true;
     if (use_opengl)
@@ -1064,7 +988,7 @@ static void ImGui_ImplSDL3_DestroyWindow(ImGuiViewport* viewport)
 static void ImGui_ImplSDL3_ShowWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
-#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && ((defined(WINAPI_FAMILY_APP) && WINAPI_FAMILY == WINAPI_FAMILY_APP) || (defined(WINAPI_FAMILY_GAMES) && WINAPI_FAMILY == WINAPI_FAMILY_GAMES)))
+#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP || WINAPI_FAMILY == WINAPI_FAMILY_GAMES))
     HWND hwnd = (HWND)viewport->PlatformHandleRaw;
 
     // SDL hack: Show icon in task bar (#7989)
@@ -1079,20 +1003,14 @@ static void ImGui_ImplSDL3_ShowWindow(ImGuiViewport* viewport)
     }
 #endif
 
-#ifdef __APPLE__
-    SDL_SetHint(SDL_HINT_WINDOW_ACTIVATE_WHEN_SHOWN, "1"); // Otherwise new window appear under
-#else
     SDL_SetHint(SDL_HINT_WINDOW_ACTIVATE_WHEN_SHOWN, (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing) ? "0" : "1");
-#endif
     SDL_ShowWindow(vd->Window);
 }
 
 static void ImGui_ImplSDL3_UpdateWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
-    IM_UNUSED(vd);
 
-#ifndef __APPLE__ // On Mac, SDL3 Parenting appears to prevent viewport from appearing in another monitor
     // Update SDL3 parent if it changed _after_ creation.
     // This is for advanced apps that are manipulating ParentViewportID manually.
     SDL_Window* new_parent = ImGui_ImplSDL3_GetSDLWindowFromViewportID(viewport->ParentViewportId);
@@ -1101,7 +1019,6 @@ static void ImGui_ImplSDL3_UpdateWindow(ImGuiViewport* viewport)
         vd->ParentWindow = new_parent;
         SDL_SetWindowParent(vd->Window, vd->ParentWindow);
     }
-#endif
 }
 
 static ImVec2 ImGui_ImplSDL3_GetWindowPos(ImGuiViewport* viewport)
@@ -1132,14 +1049,6 @@ static void ImGui_ImplSDL3_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
     SDL_SetWindowSize(vd->Window, (int)size.x, (int)size.y);
 }
 
-static ImVec2 ImGui_ImplSDL3_GetWindowFramebufferScale(ImGuiViewport* viewport)
-{
-    ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
-    ImVec2 framebuffer_scale;
-    ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(vd->Window, nullptr, &framebuffer_scale);
-    return framebuffer_scale;
-}
-
 static void ImGui_ImplSDL3_SetWindowTitle(ImGuiViewport* viewport, const char* title)
 {
     ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
@@ -1194,7 +1103,7 @@ static int ImGui_ImplSDL3_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_inst
 {
     ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
     (void)vk_allocator;
-    bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (const VkAllocationCallbacks*)vk_allocator, (VkSurfaceKHR*)out_vk_surface);
+    bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (VkAllocationCallbacks*)vk_allocator, (VkSurfaceKHR*)out_vk_surface);
     return ret ? 0 : 1; // ret ? VK_SUCCESS : VK_NOT_READY
 }
 
@@ -1210,7 +1119,6 @@ static void ImGui_ImplSDL3_InitMultiViewportSupport(SDL_Window* window, void* sd
     platform_io.Platform_GetWindowPos = ImGui_ImplSDL3_GetWindowPos;
     platform_io.Platform_SetWindowSize = ImGui_ImplSDL3_SetWindowSize;
     platform_io.Platform_GetWindowSize = ImGui_ImplSDL3_GetWindowSize;
-    platform_io.Platform_GetWindowFramebufferScale = ImGui_ImplSDL3_GetWindowFramebufferScale;
     platform_io.Platform_SetWindowFocus = ImGui_ImplSDL3_SetWindowFocus;
     platform_io.Platform_GetWindowFocus = ImGui_ImplSDL3_GetWindowFocus;
     platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL3_GetWindowMinimized;

backends/imgui_impl_sdl3.h

@@ -1,17 +1,19 @@
-// dear imgui: Platform Backend for SDL3
-// This needs to be used along with a Renderer (e.g. SDL_GPU, DirectX11, OpenGL3, Vulkan..)
+// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
+// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
 // (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
 
+// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
+
 // Implemented features:
 //  [X] Platform: Clipboard support.
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
-// Missing features or Issues:
+// Issues:
 //  [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
-//  [x] Platform: IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+//  [x] Platform: Basic IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -36,7 +38,6 @@ IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForVulkan(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForD3D(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForMetal(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
-IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForSDLGPU(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForOther(SDL_Window* window);
 IMGUI_IMPL_API void     ImGui_ImplSDL3_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDL3_NewFrame();
@@ -45,6 +46,6 @@ IMGUI_IMPL_API bool     ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event);
 // Gamepad selection automatically starts in AutoFirst mode, picking first available SDL_Gamepad. You may override this.
 // When using manual mode, caller is responsible for opening/closing gamepad.
 enum ImGui_ImplSDL3_GamepadMode { ImGui_ImplSDL3_GamepadMode_AutoFirst, ImGui_ImplSDL3_GamepadMode_AutoAll, ImGui_ImplSDL3_GamepadMode_Manual };
-IMGUI_IMPL_API void     ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array = nullptr, int manual_gamepads_count = -1);
+IMGUI_IMPL_API void     ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array = NULL, int manual_gamepads_count = -1);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlgpu3.cpp

@@ -1,742 +0,0 @@
-// dear imgui: Renderer Backend for SDL_GPU
-// This needs to be used along with the SDL3 Platform Backend
-
-// Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_GPUTexture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! **IMPORTANT** Before 2025/08/08, ImTextureID was a reference to a SDL_GPUTextureSamplerBinding struct.
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-
-// The aim of imgui_impl_sdlgpu3.h/.cpp is to be usable in your engine without any modification.
-// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
-
-// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
-// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-// Important note to the reader who wish to integrate imgui_impl_sdlgpu3.cpp/.h in their own engine/app.
-// - Unlike other backends, the user must call the function ImGui_ImplSDLGPU3_PrepareDrawData() BEFORE issuing a SDL_GPURenderPass containing ImGui_ImplSDLGPU3_RenderDrawData.
-//   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
-
-// CHANGELOG
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-08-20: Added ImGui_ImplSDLGPU3_InitInfo::SwapchainComposition and ImGui_ImplSDLGPU3_InitInfo::PresentMode to configure how secondary viewports are created.
-//  2025-08-08: *BREAKING* Changed ImTextureID type from SDL_GPUTextureSamplerBinding* to SDL_GPUTexture*, which is more natural and easier for user to manage. If you need to change the current sampler, you can access the ImGui_ImplSDLGPU3_RenderState struct. (#8866, #8163, #7998, #7988)
-//  2025-08-08: Expose SamplerDefault and SamplerCurrent in ImGui_ImplSDLGPU3_RenderState. Allow callback to change sampler.
-//  2025-06-25: Mapping transfer buffer for texture update use cycle=true. Fixes artifacts e.g. on Metal backend.
-//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLGPU3_CreateFontsTexture() and ImGui_ImplSDLGPU3_DestroyFontsTexture().
-//  2025-04-28: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
-//  2025-03-30: Made ImGui_ImplSDLGPU3_PrepareDrawData() reuse GPU Transfer Buffers which were unusually slow to recreate every frame. Much faster now.
-//  2025-03-21: Fixed typo in function name Imgui_ImplSDLGPU3_PrepareDrawData() -> ImGui_ImplSDLGPU3_PrepareDrawData().
-//  2025-01-16: Renamed ImGui_ImplSDLGPU3_InitInfo::GpuDevice to Device.
-//  2025-01-09: SDL_GPU: Added the SDL_GPU3 backend.
-
-#include "imgui.h"
-#ifndef IMGUI_DISABLE
-#include "imgui_impl_sdlgpu3.h"
-#include "imgui_impl_sdlgpu3_shaders.h"
-
-// SDL_GPU Data
-
-// Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplSDLGPU3_RenderDrawData()
-struct ImGui_ImplSDLGPU3_FrameData
-{
-    SDL_GPUBuffer*          VertexBuffer            = nullptr;
-    SDL_GPUTransferBuffer*  VertexTransferBuffer    = nullptr;
-    uint32_t                VertexBufferSize        = 0;
-    SDL_GPUBuffer*          IndexBuffer             = nullptr;
-    SDL_GPUTransferBuffer*  IndexTransferBuffer     = nullptr;
-    uint32_t                IndexBufferSize         = 0;
-};
-
-struct ImGui_ImplSDLGPU3_Data
-{
-    ImGui_ImplSDLGPU3_InitInfo   InitInfo;
-
-    // Graphics pipeline & shaders
-    SDL_GPUShader*               VertexShader           = nullptr;
-    SDL_GPUShader*               FragmentShader         = nullptr;
-    SDL_GPUGraphicsPipeline*     Pipeline               = nullptr;
-    SDL_GPUSampler*              TexSampler             = nullptr;
-    SDL_GPUTransferBuffer*       TexTransferBuffer      = nullptr;
-    uint32_t                     TexTransferBufferSize  = 0;
-
-    // Frame data for main window
-    ImGui_ImplSDLGPU3_FrameData  MainWindowFrameData;
-};
-
-// Forward Declarations
-static void ImGui_ImplSDLGPU3_DestroyFrameData();
-
-//-----------------------------------------------------------------------------
-// FUNCTIONS
-//-----------------------------------------------------------------------------
-
-// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
-// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
-// FIXME: multi-context support has never been tested.
-static ImGui_ImplSDLGPU3_Data* ImGui_ImplSDLGPU3_GetBackendData()
-{
-    return ImGui::GetCurrentContext() ? (ImGui_ImplSDLGPU3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
-}
-
-static void ImGui_ImplSDLGPU3_SetupRenderState(ImDrawData* draw_data, ImGui_ImplSDLGPU3_RenderState* render_state, SDL_GPUGraphicsPipeline* pipeline, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, ImGui_ImplSDLGPU3_FrameData* fd, uint32_t fb_width, uint32_t fb_height)
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    render_state->SamplerCurrent = render_state->SamplerCurrent = bd->TexSampler;
-
-    // Bind graphics pipeline
-    SDL_BindGPUGraphicsPipeline(render_pass, pipeline);
-
-    // Bind Vertex And Index Buffers
-    if (draw_data->TotalVtxCount > 0)
-    {
-        SDL_GPUBufferBinding vertex_buffer_binding = {};
-        vertex_buffer_binding.buffer = fd->VertexBuffer;
-        vertex_buffer_binding.offset = 0;
-        SDL_GPUBufferBinding index_buffer_binding = {};
-        index_buffer_binding.buffer = fd->IndexBuffer;
-        index_buffer_binding.offset = 0;
-        SDL_BindGPUVertexBuffers(render_pass,0, &vertex_buffer_binding, 1);
-        SDL_BindGPUIndexBuffer(render_pass, &index_buffer_binding, sizeof(ImDrawIdx) == 2 ? SDL_GPU_INDEXELEMENTSIZE_16BIT : SDL_GPU_INDEXELEMENTSIZE_32BIT);
-    }
-
-    // Setup viewport
-    SDL_GPUViewport viewport = {};
-    viewport.x = 0;
-    viewport.y = 0;
-    viewport.w = (float)fb_width;
-    viewport.h = (float)fb_height;
-    viewport.min_depth = 0.0f;
-    viewport.max_depth = 1.0f;
-    SDL_SetGPUViewport(render_pass, &viewport);
-
-    // Setup scale and translation
-    // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
-    struct UBO { float scale[2]; float translation[2]; } ubo;
-    ubo.scale[0] = 2.0f / draw_data->DisplaySize.x;
-    ubo.scale[1] = 2.0f / draw_data->DisplaySize.y;
-    ubo.translation[0] = -1.0f - draw_data->DisplayPos.x * ubo.scale[0];
-    ubo.translation[1] = -1.0f - draw_data->DisplayPos.y * ubo.scale[1];
-    SDL_PushGPUVertexUniformData(command_buffer, 0, &ubo, sizeof(UBO));
-}
-
-static void CreateOrResizeBuffers(SDL_GPUBuffer** buffer, SDL_GPUTransferBuffer** transferbuffer, uint32_t* old_size, uint32_t new_size, SDL_GPUBufferUsageFlags usage)
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    // FIXME-OPT: Not optimal, but this is fairly rarely called.
-    SDL_WaitForGPUIdle(v->Device);
-    SDL_ReleaseGPUBuffer(v->Device, *buffer);
-    SDL_ReleaseGPUTransferBuffer(v->Device, *transferbuffer);
-
-    SDL_GPUBufferCreateInfo buffer_info = {};
-    buffer_info.usage = usage;
-    buffer_info.size = new_size;
-    buffer_info.props = 0;
-    *buffer = SDL_CreateGPUBuffer(v->Device, &buffer_info);
-    *old_size = new_size;
-    IM_ASSERT(*buffer != nullptr && "Failed to create GPU Buffer, call SDL_GetError() for more information");
-
-    SDL_GPUTransferBufferCreateInfo transferbuffer_info = {};
-    transferbuffer_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
-    transferbuffer_info.size = new_size;
-    *transferbuffer = SDL_CreateGPUTransferBuffer(v->Device, &transferbuffer_info);
-    IM_ASSERT(*transferbuffer != nullptr && "Failed to create GPU Transfer Buffer, call SDL_GetError() for more information");
-}
-
-// SDL_GPU doesn't allow copy passes to occur while a render or compute pass is bound!
-// The only way to allow a user to supply their own RenderPass (to render to a texture instead of the window for example),
-// is to split the upload part of ImGui_ImplSDLGPU3_RenderDrawData() to another function that needs to be called by the user before rendering.
-void ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer)
-{
-    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
-    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
-    if (fb_width <= 0 || fb_height <= 0 || draw_data->TotalVtxCount <= 0)
-        return;
-
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplSDLGPU3_UpdateTexture(tex);
-
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
-
-    uint32_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
-    uint32_t index_size  = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
-    if (fd->VertexBuffer == nullptr || fd->VertexBufferSize < vertex_size)
-        CreateOrResizeBuffers(&fd->VertexBuffer, &fd->VertexTransferBuffer, &fd->VertexBufferSize, vertex_size, SDL_GPU_BUFFERUSAGE_VERTEX);
-    if (fd->IndexBuffer == nullptr || fd->IndexBufferSize < index_size)
-        CreateOrResizeBuffers(&fd->IndexBuffer, &fd->IndexTransferBuffer, &fd->IndexBufferSize, index_size, SDL_GPU_BUFFERUSAGE_INDEX);
-
-    ImDrawVert* vtx_dst = (ImDrawVert*)SDL_MapGPUTransferBuffer(v->Device, fd->VertexTransferBuffer, true);
-    ImDrawIdx* idx_dst = (ImDrawIdx*)SDL_MapGPUTransferBuffer(v->Device, fd->IndexTransferBuffer, true);
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
-    {
-        memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
-        memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
-        vtx_dst += draw_list->VtxBuffer.Size;
-        idx_dst += draw_list->IdxBuffer.Size;
-    }
-    SDL_UnmapGPUTransferBuffer(v->Device, fd->VertexTransferBuffer);
-    SDL_UnmapGPUTransferBuffer(v->Device, fd->IndexTransferBuffer);
-
-    SDL_GPUTransferBufferLocation vertex_buffer_location = {};
-    vertex_buffer_location.offset = 0;
-    vertex_buffer_location.transfer_buffer = fd->VertexTransferBuffer;
-    SDL_GPUTransferBufferLocation index_buffer_location = {};
-    index_buffer_location.offset = 0;
-    index_buffer_location.transfer_buffer = fd->IndexTransferBuffer;
-
-    SDL_GPUBufferRegion vertex_buffer_region = {};
-    vertex_buffer_region.buffer = fd->VertexBuffer;
-    vertex_buffer_region.offset = 0;
-    vertex_buffer_region.size = vertex_size;
-
-    SDL_GPUBufferRegion index_buffer_region = {};
-    index_buffer_region.buffer = fd->IndexBuffer;
-    index_buffer_region.offset = 0;
-    index_buffer_region.size = index_size;
-
-    SDL_GPUCopyPass* copy_pass = SDL_BeginGPUCopyPass(command_buffer);
-    SDL_UploadToGPUBuffer(copy_pass, &vertex_buffer_location, &vertex_buffer_region, true);
-    SDL_UploadToGPUBuffer(copy_pass, &index_buffer_location, &index_buffer_region, true);
-    SDL_EndGPUCopyPass(copy_pass);
-}
-
-void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline)
-{
-    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
-    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
-    if (fb_width <= 0 || fb_height <= 0)
-        return;
-
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
-
-    if (pipeline == nullptr)
-        pipeline = bd->Pipeline;
-
-    // Will project scissor/clipping rectangles into framebuffer space
-    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
-    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
-
-    // Setup render state structure (for callbacks and custom texture bindings)
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    ImGui_ImplSDLGPU3_RenderState render_state;
-    render_state.Device = bd->InitInfo.Device;
-    render_state.SamplerDefault = render_state.SamplerCurrent = bd->TexSampler;
-    platform_io.Renderer_RenderState = &render_state;
-
-    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
-
-    // Render command lists
-    // (Because we merged all buffers into a single one, we maintain our own offset into them)
-    int global_vtx_offset = 0;
-    int global_idx_offset = 0;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
-    {
-        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
-        {
-            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
-            if (pcmd->UserCallback != nullptr)
-            {
-                // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
-                    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
-                else
-                    pcmd->UserCallback(draw_list, pcmd);
-            }
-            else
-            {
-                // Project scissor/clipping rectangles into framebuffer space
-                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
-                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
-
-                // Clamp to viewport as SDL_SetGPUScissor() won't accept values that are off bounds
-                if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
-                if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
-                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
-                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
-                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
-                    continue;
-
-                // Apply scissor/clipping rectangle
-                SDL_Rect scissor_rect = {};
-                scissor_rect.x = (int)clip_min.x;
-                scissor_rect.y = (int)clip_min.y;
-                scissor_rect.w = (int)(clip_max.x - clip_min.x);
-                scissor_rect.h = (int)(clip_max.y - clip_min.y);
-                SDL_SetGPUScissor(render_pass,&scissor_rect);
-
-                // Bind DescriptorSet with font or user texture
-                SDL_GPUTextureSamplerBinding texture_sampler_binding;
-                texture_sampler_binding.texture = (SDL_GPUTexture*)(intptr_t)pcmd->GetTexID();
-                texture_sampler_binding.sampler = render_state.SamplerCurrent;
-                SDL_BindGPUFragmentSamplers(render_pass, 0, &texture_sampler_binding, 1);
-
-                // Draw
-                // **IF YOU GET A CRASH HERE** In 1.92.2 on 2025/08/08 we have changed ImTextureID to store 'SDL_GPUTexture*' instead of storing 'SDL_GPUTextureSamplerBinding'.
-                // Any code loading custom texture using this backend needs to be updated.
-                SDL_DrawGPUIndexedPrimitives(render_pass, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
-            }
-        }
-        global_idx_offset += draw_list->IdxBuffer.Size;
-        global_vtx_offset += draw_list->VtxBuffer.Size;
-    }
-
-    // Note: at this point both SDL_SetGPUViewport() and SDL_SetGPUScissor() have been called.
-    // Our last values will leak into user/application rendering if you forgot to call SDL_SetGPUViewport() and SDL_SetGPUScissor() yourself to explicitly set that state
-    // In theory we should aim to backup/restore those values but I am not sure this is possible.
-    // We perform a call to SDL_SetGPUScissor() to set back a full viewport which is likely to fix things for 99% users but technically this is not perfect. (See github #4644)
-    SDL_Rect scissor_rect { 0, 0, fb_width, fb_height };
-    SDL_SetGPUScissor(render_pass, &scissor_rect);
-}
-
-static void ImGui_ImplSDLGPU3_DestroyTexture(ImTextureData* tex)
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID();
-    if (raw_tex != nullptr)
-        SDL_ReleaseGPUTexture(bd->InitInfo.Device, raw_tex);
-
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-}
-
-void ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex)
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // Create texture
-        SDL_GPUTextureCreateInfo texture_info = {};
-        texture_info.type = SDL_GPU_TEXTURETYPE_2D;
-        texture_info.format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM;
-        texture_info.usage = SDL_GPU_TEXTUREUSAGE_SAMPLER;
-        texture_info.width = tex->Width;
-        texture_info.height = tex->Height;
-        texture_info.layer_count_or_depth = 1;
-        texture_info.num_levels = 1;
-        texture_info.sample_count = SDL_GPU_SAMPLECOUNT_1;
-
-        SDL_GPUTexture* raw_tex = SDL_CreateGPUTexture(v->Device, &texture_info);
-        IM_ASSERT(raw_tex != nullptr && "Failed to create font texture, call SDL_GetError() for more info");
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)raw_tex);
-    }
-
-    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
-    {
-        SDL_GPUTexture* raw_tex = (SDL_GPUTexture*)(intptr_t)tex->GetTexID();
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
-        // We could use the smaller rect on _WantCreate but using the full rect allows us to clear the texture.
-        const int upload_x = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.x;
-        const int upload_y = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.y;
-        const int upload_w = (tex->Status == ImTextureStatus_WantCreate) ? tex->Width : tex->UpdateRect.w;
-        const int upload_h = (tex->Status == ImTextureStatus_WantCreate) ? tex->Height : tex->UpdateRect.h;
-        uint32_t upload_pitch = upload_w * tex->BytesPerPixel;
-        uint32_t upload_size = upload_w * upload_h * tex->BytesPerPixel;
-
-        // Create transfer buffer
-        if (bd->TexTransferBufferSize < upload_size)
-        {
-            SDL_ReleaseGPUTransferBuffer(v->Device, bd->TexTransferBuffer);
-            SDL_GPUTransferBufferCreateInfo transferbuffer_info = {};
-            transferbuffer_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
-            transferbuffer_info.size = upload_size + 1024;
-            bd->TexTransferBufferSize = upload_size + 1024;
-            bd->TexTransferBuffer = SDL_CreateGPUTransferBuffer(v->Device, &transferbuffer_info);
-            IM_ASSERT(bd->TexTransferBuffer != nullptr && "Failed to create font transfer buffer, call SDL_GetError() for more information");
-        }
-
-        // Copy to transfer buffer
-        {
-            void* texture_ptr = SDL_MapGPUTransferBuffer(v->Device, bd->TexTransferBuffer, true);
-            for (int y = 0; y < upload_h; y++)
-                memcpy((void*)((uintptr_t)texture_ptr + y * upload_pitch), tex->GetPixelsAt(upload_x, upload_y + y), upload_pitch);
-            SDL_UnmapGPUTransferBuffer(v->Device, bd->TexTransferBuffer);
-        }
-
-        SDL_GPUTextureTransferInfo transfer_info = {};
-        transfer_info.offset = 0;
-        transfer_info.transfer_buffer = bd->TexTransferBuffer;
-
-        SDL_GPUTextureRegion texture_region = {};
-        texture_region.texture = raw_tex;
-        texture_region.x = (Uint32)upload_x;
-        texture_region.y = (Uint32)upload_y;
-        texture_region.w = (Uint32)upload_w;
-        texture_region.h = (Uint32)upload_h;
-        texture_region.d = 1;
-
-        // Upload
-        {
-            SDL_GPUCommandBuffer* cmd = SDL_AcquireGPUCommandBuffer(v->Device);
-            SDL_GPUCopyPass* copy_pass = SDL_BeginGPUCopyPass(cmd);
-            SDL_UploadToGPUTexture(copy_pass, &transfer_info, &texture_region, false);
-            SDL_EndGPUCopyPass(copy_pass);
-            SDL_SubmitGPUCommandBuffer(cmd);
-        }
-
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-        ImGui_ImplSDLGPU3_DestroyTexture(tex);
-}
-
-static void ImGui_ImplSDLGPU3_CreateShaders()
-{
-    // Create the shader modules
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    const char* driver = SDL_GetGPUDeviceDriver(v->Device);
-
-    SDL_GPUShaderCreateInfo vertex_shader_info = {};
-    vertex_shader_info.entrypoint = "main";
-    vertex_shader_info.stage = SDL_GPU_SHADERSTAGE_VERTEX;
-    vertex_shader_info.num_uniform_buffers  = 1;
-    vertex_shader_info.num_storage_buffers = 0;
-    vertex_shader_info.num_storage_textures = 0;
-    vertex_shader_info.num_samplers = 0;
-
-    SDL_GPUShaderCreateInfo fragment_shader_info = {};
-    fragment_shader_info.entrypoint = "main";
-    fragment_shader_info.stage = SDL_GPU_SHADERSTAGE_FRAGMENT;
-    fragment_shader_info.num_samplers = 1;
-    fragment_shader_info.num_storage_buffers  = 0;
-    fragment_shader_info.num_storage_textures = 0;
-    fragment_shader_info.num_uniform_buffers  = 0;
-
-    if (strcmp(driver, "vulkan") == 0)
-    {
-        vertex_shader_info.format = SDL_GPU_SHADERFORMAT_SPIRV;
-        vertex_shader_info.code = spirv_vertex;
-        vertex_shader_info.code_size = sizeof(spirv_vertex);
-        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_SPIRV;
-        fragment_shader_info.code = spirv_fragment;
-        fragment_shader_info.code_size = sizeof(spirv_fragment);
-    }
-    else if (strcmp(driver, "direct3d12") == 0)
-    {
-        vertex_shader_info.format   = SDL_GPU_SHADERFORMAT_DXBC;
-        vertex_shader_info.code = dxbc_vertex;
-        vertex_shader_info.code_size = sizeof(dxbc_vertex);
-        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_DXBC;
-        fragment_shader_info.code = dxbc_fragment;
-        fragment_shader_info.code_size = sizeof(dxbc_fragment);
-    }
-#ifdef __APPLE__
-    else
-    {
-        vertex_shader_info.entrypoint = "main0";
-        vertex_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
-        vertex_shader_info.code = metallib_vertex;
-        vertex_shader_info.code_size = sizeof(metallib_vertex);
-        fragment_shader_info.entrypoint = "main0";
-        fragment_shader_info.format = SDL_GPU_SHADERFORMAT_METALLIB;
-        fragment_shader_info.code = metallib_fragment;
-        fragment_shader_info.code_size = sizeof(metallib_fragment);
-    }
-#endif
-    bd->VertexShader = SDL_CreateGPUShader(v->Device, &vertex_shader_info);
-    bd->FragmentShader = SDL_CreateGPUShader(v->Device, &fragment_shader_info);
-    IM_ASSERT(bd->VertexShader != nullptr && "Failed to create vertex shader, call SDL_GetError() for more information");
-    IM_ASSERT(bd->FragmentShader != nullptr && "Failed to create fragment shader, call SDL_GetError() for more information");
-}
-
-static void ImGui_ImplSDLGPU3_CreateGraphicsPipeline()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-    ImGui_ImplSDLGPU3_CreateShaders();
-
-    SDL_GPUVertexBufferDescription vertex_buffer_desc[1];
-    vertex_buffer_desc[0].slot = 0;
-    vertex_buffer_desc[0].input_rate = SDL_GPU_VERTEXINPUTRATE_VERTEX;
-    vertex_buffer_desc[0].instance_step_rate = 0;
-    vertex_buffer_desc[0].pitch = sizeof(ImDrawVert);
-
-    SDL_GPUVertexAttribute vertex_attributes[3];
-    vertex_attributes[0].buffer_slot = 0;
-    vertex_attributes[0].format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT2;
-    vertex_attributes[0].location = 0;
-    vertex_attributes[0].offset = offsetof(ImDrawVert,pos);
-
-    vertex_attributes[1].buffer_slot = 0;
-    vertex_attributes[1].format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT2;
-    vertex_attributes[1].location = 1;
-    vertex_attributes[1].offset = offsetof(ImDrawVert, uv);
-
-    vertex_attributes[2].buffer_slot = 0;
-    vertex_attributes[2].format = SDL_GPU_VERTEXELEMENTFORMAT_UBYTE4_NORM;
-    vertex_attributes[2].location = 2;
-    vertex_attributes[2].offset = offsetof(ImDrawVert, col);
-
-    SDL_GPUVertexInputState vertex_input_state = {};
-    vertex_input_state.num_vertex_attributes = 3;
-    vertex_input_state.vertex_attributes = vertex_attributes;
-    vertex_input_state.num_vertex_buffers = 1;
-    vertex_input_state.vertex_buffer_descriptions = vertex_buffer_desc;
-
-    SDL_GPURasterizerState rasterizer_state = {};
-    rasterizer_state.fill_mode = SDL_GPU_FILLMODE_FILL;
-    rasterizer_state.cull_mode = SDL_GPU_CULLMODE_NONE;
-    rasterizer_state.front_face = SDL_GPU_FRONTFACE_COUNTER_CLOCKWISE;
-    rasterizer_state.enable_depth_bias = false;
-    rasterizer_state.enable_depth_clip = false;
-
-    SDL_GPUMultisampleState multisample_state = {};
-    multisample_state.sample_count = v->MSAASamples;
-    multisample_state.enable_mask = false;
-
-    SDL_GPUDepthStencilState depth_stencil_state = {};
-    depth_stencil_state.enable_depth_test = false;
-    depth_stencil_state.enable_depth_write = false;
-    depth_stencil_state.enable_stencil_test = false;
-
-    SDL_GPUColorTargetBlendState blend_state = {};
-    blend_state.enable_blend = true;
-    blend_state.src_color_blendfactor = SDL_GPU_BLENDFACTOR_SRC_ALPHA;
-    blend_state.dst_color_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA;
-    blend_state.color_blend_op = SDL_GPU_BLENDOP_ADD;
-    blend_state.src_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE;
-    blend_state.dst_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA;
-    blend_state.alpha_blend_op = SDL_GPU_BLENDOP_ADD;
-    blend_state.color_write_mask = SDL_GPU_COLORCOMPONENT_R | SDL_GPU_COLORCOMPONENT_G | SDL_GPU_COLORCOMPONENT_B | SDL_GPU_COLORCOMPONENT_A;
-
-    SDL_GPUColorTargetDescription color_target_desc[1];
-    color_target_desc[0].format = v->ColorTargetFormat;
-    color_target_desc[0].blend_state = blend_state;
-
-    SDL_GPUGraphicsPipelineTargetInfo target_info = {};
-    target_info.num_color_targets = 1;
-    target_info.color_target_descriptions = color_target_desc;
-    target_info.has_depth_stencil_target = false;
-
-    SDL_GPUGraphicsPipelineCreateInfo pipeline_info = {};
-    pipeline_info.vertex_shader = bd->VertexShader;
-    pipeline_info.fragment_shader = bd->FragmentShader;
-    pipeline_info.vertex_input_state = vertex_input_state;
-    pipeline_info.primitive_type = SDL_GPU_PRIMITIVETYPE_TRIANGLELIST;
-    pipeline_info.rasterizer_state = rasterizer_state;
-    pipeline_info.multisample_state = multisample_state;
-    pipeline_info.depth_stencil_state = depth_stencil_state;
-    pipeline_info.target_info = target_info;
-
-    bd->Pipeline = SDL_CreateGPUGraphicsPipeline(v->Device, &pipeline_info);
-    IM_ASSERT(bd->Pipeline != nullptr && "Failed to create graphics pipeline, call SDL_GetError() for more information");
-}
-
-void ImGui_ImplSDLGPU3_CreateDeviceObjects()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    ImGui_ImplSDLGPU3_DestroyDeviceObjects();
-
-    if (bd->TexSampler == nullptr)
-    {
-        // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
-        SDL_GPUSamplerCreateInfo sampler_info = {};
-        sampler_info.min_filter = SDL_GPU_FILTER_LINEAR;
-        sampler_info.mag_filter = SDL_GPU_FILTER_LINEAR;
-        sampler_info.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_LINEAR;
-        sampler_info.address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
-        sampler_info.address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
-        sampler_info.address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
-        sampler_info.mip_lod_bias = 0.0f;
-        sampler_info.min_lod = -1000.0f;
-        sampler_info.max_lod = 1000.0f;
-        sampler_info.enable_anisotropy = false;
-        sampler_info.max_anisotropy = 1.0f;
-        sampler_info.enable_compare = false;
-
-        bd->TexSampler = SDL_CreateGPUSampler(v->Device, &sampler_info);
-        IM_ASSERT(bd->TexSampler != nullptr && "Failed to create font sampler, call SDL_GetError() for more information");
-    }
-
-    ImGui_ImplSDLGPU3_CreateGraphicsPipeline();
-}
-
-void ImGui_ImplSDLGPU3_DestroyFrameData()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
-    SDL_ReleaseGPUBuffer(v->Device, fd->VertexBuffer);
-    SDL_ReleaseGPUBuffer(v->Device, fd->IndexBuffer);
-    SDL_ReleaseGPUTransferBuffer(v->Device, fd->VertexTransferBuffer);
-    SDL_ReleaseGPUTransferBuffer(v->Device, fd->IndexTransferBuffer);
-    fd->VertexBuffer = fd->IndexBuffer = nullptr;
-    fd->VertexTransferBuffer = fd->IndexTransferBuffer = nullptr;
-    fd->VertexBufferSize = fd->IndexBufferSize = 0;
-}
-
-void ImGui_ImplSDLGPU3_DestroyDeviceObjects()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
-
-    ImGui_ImplSDLGPU3_DestroyFrameData();
-
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplSDLGPU3_DestroyTexture(tex);
-    if (bd->TexTransferBuffer)  { SDL_ReleaseGPUTransferBuffer(v->Device, bd->TexTransferBuffer); bd->TexTransferBuffer = nullptr; }
-    if (bd->VertexShader)       { SDL_ReleaseGPUShader(v->Device, bd->VertexShader); bd->VertexShader = nullptr; }
-    if (bd->FragmentShader)     { SDL_ReleaseGPUShader(v->Device, bd->FragmentShader); bd->FragmentShader = nullptr; }
-    if (bd->TexSampler)         { SDL_ReleaseGPUSampler(v->Device, bd->TexSampler); bd->TexSampler = nullptr; }
-    if (bd->Pipeline)           { SDL_ReleaseGPUGraphicsPipeline(v->Device, bd->Pipeline); bd->Pipeline = nullptr; }
-}
-
-static void ImGui_ImplSDLGPU3_InitMultiViewportSupport();
-static void ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport();
-
-bool ImGui_ImplSDLGPU3_Init(ImGui_ImplSDLGPU3_InitInfo* info)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-
-    // Setup backend capabilities flags
-    ImGui_ImplSDLGPU3_Data* bd = IM_NEW(ImGui_ImplSDLGPU3_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_sdlgpu3";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
-
-    IM_ASSERT(info->Device != nullptr);
-    IM_ASSERT(info->ColorTargetFormat != SDL_GPU_TEXTUREFORMAT_INVALID);
-
-    bd->InitInfo = *info;
-
-    ImGui_ImplSDLGPU3_InitMultiViewportSupport();
-
-    return true;
-}
-
-void ImGui_ImplSDLGPU3_Shutdown()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-
-    ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport();
-    ImGui_ImplSDLGPU3_DestroyDeviceObjects();
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures | ImGuiBackendFlags_RendererHasViewports);
-    IM_DELETE(bd);
-}
-
-void ImGui_ImplSDLGPU3_NewFrame()
-{
-    ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLGPU3_Init()?");
-
-    if (!bd->TexSampler)
-        ImGui_ImplSDLGPU3_CreateDeviceObjects();
-}
-
-//--------------------------------------------------------------------------------------------------------
-// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
-// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
-// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
-//--------------------------------------------------------------------------------------------------------
-
-static void ImGui_ImplSDLGPU3_CreateWindow(ImGuiViewport* viewport)
-{
-    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
-    SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
-    SDL_ClaimWindowForGPUDevice(data->InitInfo.Device, window);
-    SDL_SetGPUSwapchainParameters(data->InitInfo.Device, window, data->InitInfo.SwapchainComposition, data->InitInfo.PresentMode);
-    viewport->RendererUserData = (void*)1;
-}
-
-static void ImGui_ImplSDLGPU3_RenderWindow(ImGuiViewport* viewport, void*)
-{
-    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
-    SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
-
-    ImDrawData* draw_data = viewport->DrawData;
-
-    SDL_GPUCommandBuffer* command_buffer = SDL_AcquireGPUCommandBuffer(data->InitInfo.Device);
-
-    SDL_GPUTexture* swapchain_texture;
-    SDL_AcquireGPUSwapchainTexture(command_buffer, window, &swapchain_texture, nullptr, nullptr);
-
-    if (swapchain_texture != nullptr)
-    {
-        ImGui_ImplSDLGPU3_PrepareDrawData(draw_data, command_buffer); // FIXME-OPT: Not optimal, may this be done earlier?
-        SDL_GPUColorTargetInfo target_info = {};
-        target_info.texture = swapchain_texture;
-        target_info.clear_color = SDL_FColor{ 0.0f,0.0f,0.0f,1.0f };
-        target_info.load_op = SDL_GPU_LOADOP_CLEAR;
-        target_info.store_op = SDL_GPU_STOREOP_STORE;
-        target_info.mip_level = 0;
-        target_info.layer_or_depth_plane = 0;
-        target_info.cycle = false;
-        SDL_GPURenderPass* render_pass = SDL_BeginGPURenderPass(command_buffer, &target_info, 1, nullptr);
-        ImGui_ImplSDLGPU3_RenderDrawData(draw_data, command_buffer, render_pass);
-        SDL_EndGPURenderPass(render_pass);
-    }
-
-    SDL_SubmitGPUCommandBuffer(command_buffer);
-}
-
-static void ImGui_ImplSDLGPU3_DestroyWindow(ImGuiViewport* viewport)
-{
-    ImGui_ImplSDLGPU3_Data* data = ImGui_ImplSDLGPU3_GetBackendData();
-    if (viewport->RendererUserData)
-    {
-        SDL_Window* window = SDL_GetWindowFromID((SDL_WindowID)(intptr_t)viewport->PlatformHandle);
-        SDL_ReleaseWindowFromGPUDevice(data->InitInfo.Device, window);
-    }
-    viewport->RendererUserData = nullptr;
-}
-
-static void ImGui_ImplSDLGPU3_InitMultiViewportSupport()
-{
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_RenderWindow = ImGui_ImplSDLGPU3_RenderWindow;
-    platform_io.Renderer_CreateWindow = ImGui_ImplSDLGPU3_CreateWindow;
-    platform_io.Renderer_DestroyWindow = ImGui_ImplSDLGPU3_DestroyWindow;
-}
-
-static void ImGui_ImplSDLGPU3_ShutdownMultiViewportSupport()
-{
-    ImGui::DestroyPlatformWindows();
-}
-
-//-----------------------------------------------------------------------------
-
-#endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlgpu3.h

@@ -1,65 +0,0 @@
-// dear imgui: Renderer Backend for SDL_GPU
-// This needs to be used along with the SDL3 Platform Backend
-
-// Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_GPUTexture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef! **IMPORTANT** Before 2025/08/08, ImTextureID was a reference to a SDL_GPUTextureSamplerBinding struct.
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-//  [X] Renderer: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
-
-// The aim of imgui_impl_sdlgpu3.h/.cpp is to be usable in your engine without any modification.
-// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
-
-// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
-// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-// Important note to the reader who wish to integrate imgui_impl_sdlgpu3.cpp/.h in their own engine/app.
-// - Unlike other backends, the user must call the function ImGui_ImplSDLGPU_PrepareDrawData BEFORE issuing a SDL_GPURenderPass containing ImGui_ImplSDLGPU_RenderDrawData.
-//   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
-
-#pragma once
-#include "imgui.h"      // IMGUI_IMPL_API
-#ifndef IMGUI_DISABLE
-#include <SDL3/SDL_gpu.h>
-
-// Initialization data, for ImGui_ImplSDLGPU_Init()
-// - Remember to set ColorTargetFormat to the correct format. If you're rendering to the swapchain, call SDL_GetGPUSwapchainTextureFormat() to query the right value
-struct ImGui_ImplSDLGPU3_InitInfo
-{
-    SDL_GPUDevice*              Device                  = nullptr;
-    SDL_GPUTextureFormat        ColorTargetFormat       = SDL_GPU_TEXTUREFORMAT_INVALID;
-    SDL_GPUSampleCount          MSAASamples             = SDL_GPU_SAMPLECOUNT_1;
-    SDL_GPUSwapchainComposition SwapchainComposition    = SDL_GPU_SWAPCHAINCOMPOSITION_SDR;     // Only used in multi-viewports mode.
-    SDL_GPUPresentMode          PresentMode             = SDL_GPU_PRESENTMODE_VSYNC;            // Only used in multi-viewports mode.
-};
-
-// Follow "Getting Started" link and check examples/ folder to learn about using backends!
-IMGUI_IMPL_API bool     ImGui_ImplSDLGPU3_Init(ImGui_ImplSDLGPU3_InitInfo* info);
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_Shutdown();
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_NewFrame();
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer);
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline = nullptr);
-
-// Use if you want to reset your rendering device without losing Dear ImGui state.
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_CreateDeviceObjects();
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_DestroyDeviceObjects();
-
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex);
-
-// [BETA] Selected render state data shared with callbacks.
-// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLGPU3_RenderDrawData() call.
-// (Please open an issue if you feel you need access to more data)
-struct ImGui_ImplSDLGPU3_RenderState
-{
-    SDL_GPUDevice*      Device;
-    SDL_GPUSampler*     SamplerDefault;     // Default sampler (bilinear filtering)
-    SDL_GPUSampler*     SamplerCurrent;     // Current sampler (may be changed by callback)
-};
-
-#endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlgpu3_shaders.h

@@ -1,372 +0,0 @@
-#pragma once
-#ifndef IMGUI_DISABLE
-#include <stdint.h>
-
-// Data exported using
-//   misc/fonts/binary_to_compressed_c.exe -u8 -nocompress filename symbolname >filename.h
-// With some manual pasting.
-
-// Check sdlgpu3/ folder for the shaders' source code and instruction on how to build them
-const uint8_t spirv_vertex[1732] = {
-    3,2,35,7,0,0,1,0,11,0,13,0,55,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,11,0,6,0,1,0,0,0,71,76,83,76,46,115,116,100,46,52,53,48,0,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,10,0,0,0,0,0,4,0,0,0,109,
-    97,105,110,0,0,0,0,11,0,0,0,15,0,0,0,21,0,0,0,30,0,0,0,31,0,0,0,3,0,3,0,2,0,0,0,194,1,0,0,4,0,10,0,71,76,95,71,79,79,71,76,69,95,99,112,112,95,115,116,121,108,101,95,108,105,110,101,
-    95,100,105,114,101,99,116,105,118,101,0,0,4,0,8,0,71,76,95,71,79,79,71,76,69,95,105,110,99,108,117,100,101,95,100,105,114,101,99,116,105,118,101,0,5,0,4,0,4,0,0,0,109,97,105,110,0,
-    0,0,0,5,0,3,0,9,0,0,0,0,0,0,0,6,0,5,0,9,0,0,0,0,0,0,0,67,111,108,111,114,0,0,0,6,0,4,0,9,0,0,0,1,0,0,0,85,86,0,0,5,0,3,0,11,0,0,0,79,117,116,0,5,0,4,0,15,0,0,0,97,67,111,108,111,114,
-    0,0,5,0,3,0,21,0,0,0,97,85,86,0,5,0,6,0,28,0,0,0,103,108,95,80,101,114,86,101,114,116,101,120,0,0,0,0,6,0,6,0,28,0,0,0,0,0,0,0,103,108,95,80,111,115,105,116,105,111,110,0,6,0,7,0,28,
-    0,0,0,1,0,0,0,103,108,95,80,111,105,110,116,83,105,122,101,0,0,0,0,6,0,7,0,28,0,0,0,2,0,0,0,103,108,95,67,108,105,112,68,105,115,116,97,110,99,101,0,6,0,7,0,28,0,0,0,3,0,0,0,103,108,
-    95,67,117,108,108,68,105,115,116,97,110,99,101,0,5,0,3,0,30,0,0,0,0,0,0,0,5,0,4,0,31,0,0,0,97,80,111,115,0,0,0,0,5,0,6,0,33,0,0,0,117,80,117,115,104,67,111,110,115,116,97,110,116,0,
-    0,0,6,0,5,0,33,0,0,0,0,0,0,0,117,83,99,97,108,101,0,0,6,0,6,0,33,0,0,0,1,0,0,0,117,84,114,97,110,115,108,97,116,101,0,0,5,0,3,0,35,0,0,0,112,99,0,0,71,0,4,0,11,0,0,0,30,0,0,0,0,0,0,
-    0,71,0,4,0,15,0,0,0,30,0,0,0,2,0,0,0,71,0,4,0,21,0,0,0,30,0,0,0,1,0,0,0,71,0,3,0,28,0,0,0,2,0,0,0,72,0,5,0,28,0,0,0,0,0,0,0,11,0,0,0,0,0,0,0,72,0,5,0,28,0,0,0,1,0,0,0,11,0,0,0,1,0,
-    0,0,72,0,5,0,28,0,0,0,2,0,0,0,11,0,0,0,3,0,0,0,72,0,5,0,28,0,0,0,3,0,0,0,11,0,0,0,4,0,0,0,71,0,4,0,31,0,0,0,30,0,0,0,0,0,0,0,71,0,3,0,33,0,0,0,2,0,0,0,72,0,5,0,33,0,0,0,0,0,0,0,35,
-    0,0,0,0,0,0,0,72,0,5,0,33,0,0,0,1,0,0,0,35,0,0,0,8,0,0,0,71,0,4,0,35,0,0,0,33,0,0,0,0,0,0,0,71,0,4,0,35,0,0,0,34,0,0,0,1,0,0,0,19,0,2,0,2,0,0,0,33,0,3,0,3,0,0,0,2,0,0,0,22,0,3,0,6,
-    0,0,0,32,0,0,0,23,0,4,0,7,0,0,0,6,0,0,0,4,0,0,0,23,0,4,0,8,0,0,0,6,0,0,0,2,0,0,0,30,0,4,0,9,0,0,0,7,0,0,0,8,0,0,0,32,0,4,0,10,0,0,0,3,0,0,0,9,0,0,0,59,0,4,0,10,0,0,0,11,0,0,0,3,0,0,
-    0,21,0,4,0,12,0,0,0,32,0,0,0,1,0,0,0,43,0,4,0,12,0,0,0,13,0,0,0,0,0,0,0,32,0,4,0,14,0,0,0,1,0,0,0,7,0,0,0,59,0,4,0,14,0,0,0,15,0,0,0,1,0,0,0,32,0,4,0,17,0,0,0,3,0,0,0,7,0,0,0,43,0,
-    4,0,12,0,0,0,19,0,0,0,1,0,0,0,32,0,4,0,20,0,0,0,1,0,0,0,8,0,0,0,59,0,4,0,20,0,0,0,21,0,0,0,1,0,0,0,32,0,4,0,23,0,0,0,3,0,0,0,8,0,0,0,21,0,4,0,25,0,0,0,32,0,0,0,0,0,0,0,43,0,4,0,25,
-    0,0,0,26,0,0,0,1,0,0,0,28,0,4,0,27,0,0,0,6,0,0,0,26,0,0,0,30,0,6,0,28,0,0,0,7,0,0,0,6,0,0,0,27,0,0,0,27,0,0,0,32,0,4,0,29,0,0,0,3,0,0,0,28,0,0,0,59,0,4,0,29,0,0,0,30,0,0,0,3,0,0,0,
-    59,0,4,0,20,0,0,0,31,0,0,0,1,0,0,0,30,0,4,0,33,0,0,0,8,0,0,0,8,0,0,0,32,0,4,0,34,0,0,0,2,0,0,0,33,0,0,0,59,0,4,0,34,0,0,0,35,0,0,0,2,0,0,0,32,0,4,0,36,0,0,0,2,0,0,0,8,0,0,0,43,0,4,
-    0,6,0,0,0,43,0,0,0,0,0,0,0,43,0,4,0,6,0,0,0,44,0,0,0,0,0,128,63,43,0,4,0,6,0,0,0,49,0,0,0,0,0,128,191,32,0,4,0,50,0,0,0,3,0,0,0,6,0,0,0,54,0,5,0,2,0,0,0,4,0,0,0,0,0,0,0,3,0,0,0,248,
-    0,2,0,5,0,0,0,61,0,4,0,7,0,0,0,16,0,0,0,15,0,0,0,65,0,5,0,17,0,0,0,18,0,0,0,11,0,0,0,13,0,0,0,62,0,3,0,18,0,0,0,16,0,0,0,61,0,4,0,8,0,0,0,22,0,0,0,21,0,0,0,65,0,5,0,23,0,0,0,24,0,0,
-    0,11,0,0,0,19,0,0,0,62,0,3,0,24,0,0,0,22,0,0,0,61,0,4,0,8,0,0,0,32,0,0,0,31,0,0,0,65,0,5,0,36,0,0,0,37,0,0,0,35,0,0,0,13,0,0,0,61,0,4,0,8,0,0,0,38,0,0,0,37,0,0,0,133,0,5,0,8,0,0,0,
-    39,0,0,0,32,0,0,0,38,0,0,0,65,0,5,0,36,0,0,0,40,0,0,0,35,0,0,0,19,0,0,0,61,0,4,0,8,0,0,0,41,0,0,0,40,0,0,0,129,0,5,0,8,0,0,0,42,0,0,0,39,0,0,0,41,0,0,0,81,0,5,0,6,0,0,0,45,0,0,0,42,
-    0,0,0,0,0,0,0,81,0,5,0,6,0,0,0,46,0,0,0,42,0,0,0,1,0,0,0,80,0,7,0,7,0,0,0,47,0,0,0,45,0,0,0,46,0,0,0,43,0,0,0,44,0,0,0,65,0,5,0,17,0,0,0,48,0,0,0,30,0,0,0,13,0,0,0,62,0,3,0,48,0,0,
-    0,47,0,0,0,65,0,6,0,50,0,0,0,51,0,0,0,30,0,0,0,13,0,0,0,26,0,0,0,61,0,4,0,6,0,0,0,52,0,0,0,51,0,0,0,133,0,5,0,6,0,0,0,53,0,0,0,52,0,0,0,49,0,0,0,65,0,6,0,50,0,0,0,54,0,0,0,30,0,0,0,
-    13,0,0,0,26,0,0,0,62,0,3,0,54,0,0,0,53,0,0,0,253,0,1,0,56,0,1,0,
-};
-const uint8_t spirv_fragment[844] = {
-    3,2,35,7,0,0,1,0,11,0,13,0,30,0,0,0,0,0,0,0,17,0,2,0,1,0,0,0,11,0,6,0,1,0,0,0,71,76,83,76,46,115,116,100,46,52,53,48,0,0,0,0,14,0,3,0,0,0,0,0,1,0,0,0,15,0,7,0,4,0,0,0,4,0,0,0,109,97,
-    105,110,0,0,0,0,9,0,0,0,13,0,0,0,16,0,3,0,4,0,0,0,7,0,0,0,3,0,3,0,2,0,0,0,194,1,0,0,4,0,10,0,71,76,95,71,79,79,71,76,69,95,99,112,112,95,115,116,121,108,101,95,108,105,110,101,95,100,
-    105,114,101,99,116,105,118,101,0,0,4,0,8,0,71,76,95,71,79,79,71,76,69,95,105,110,99,108,117,100,101,95,100,105,114,101,99,116,105,118,101,0,5,0,4,0,4,0,0,0,109,97,105,110,0,0,0,0,5,
-    0,4,0,9,0,0,0,102,67,111,108,111,114,0,0,5,0,3,0,11,0,0,0,0,0,0,0,6,0,5,0,11,0,0,0,0,0,0,0,67,111,108,111,114,0,0,0,6,0,4,0,11,0,0,0,1,0,0,0,85,86,0,0,5,0,3,0,13,0,0,0,73,110,0,0,5,
-    0,5,0,22,0,0,0,115,84,101,120,116,117,114,101,0,0,0,0,71,0,4,0,9,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,13,0,0,0,30,0,0,0,0,0,0,0,71,0,4,0,22,0,0,0,33,0,0,0,0,0,0,0,71,0,4,0,22,0,0,0,34,0,
-    0,0,2,0,0,0,19,0,2,0,2,0,0,0,33,0,3,0,3,0,0,0,2,0,0,0,22,0,3,0,6,0,0,0,32,0,0,0,23,0,4,0,7,0,0,0,6,0,0,0,4,0,0,0,32,0,4,0,8,0,0,0,3,0,0,0,7,0,0,0,59,0,4,0,8,0,0,0,9,0,0,0,3,0,0,0,23,
-    0,4,0,10,0,0,0,6,0,0,0,2,0,0,0,30,0,4,0,11,0,0,0,7,0,0,0,10,0,0,0,32,0,4,0,12,0,0,0,1,0,0,0,11,0,0,0,59,0,4,0,12,0,0,0,13,0,0,0,1,0,0,0,21,0,4,0,14,0,0,0,32,0,0,0,1,0,0,0,43,0,4,0,
-    14,0,0,0,15,0,0,0,0,0,0,0,32,0,4,0,16,0,0,0,1,0,0,0,7,0,0,0,25,0,9,0,19,0,0,0,6,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,27,0,3,0,20,0,0,0,19,0,0,0,32,0,4,0,21,0,0,0,0,
-    0,0,0,20,0,0,0,59,0,4,0,21,0,0,0,22,0,0,0,0,0,0,0,43,0,4,0,14,0,0,0,24,0,0,0,1,0,0,0,32,0,4,0,25,0,0,0,1,0,0,0,10,0,0,0,54,0,5,0,2,0,0,0,4,0,0,0,0,0,0,0,3,0,0,0,248,0,2,0,5,0,0,0,65,
-    0,5,0,16,0,0,0,17,0,0,0,13,0,0,0,15,0,0,0,61,0,4,0,7,0,0,0,18,0,0,0,17,0,0,0,61,0,4,0,20,0,0,0,23,0,0,0,22,0,0,0,65,0,5,0,25,0,0,0,26,0,0,0,13,0,0,0,24,0,0,0,61,0,4,0,10,0,0,0,27,0,
-    0,0,26,0,0,0,87,0,5,0,7,0,0,0,28,0,0,0,23,0,0,0,27,0,0,0,133,0,5,0,7,0,0,0,29,0,0,0,18,0,0,0,28,0,0,0,62,0,3,0,9,0,0,0,29,0,0,0,253,0,1,0,56,0,1,0,
-};
-
-const uint8_t dxbc_vertex[1064]  = {
-    68,88,66,67,32,50,127,204,241,196,165,104,216,114,216,116,220,164,29,45,1,0,0,0,40,4,0,0,5,0,0,0,52,0,0,0,136,1,0,0,236,1,0,0,92,2,0,0,140,3,0,0,82,68,69,70,76,1,0,0,1,0,0,0,116,0,
-    0,0,1,0,0,0,60,0,0,0,1,5,254,255,0,5,0,0,34,1,0,0,19,19,68,37,60,0,0,0,24,0,0,0,40,0,0,0,40,0,0,0,36,0,0,0,12,0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
-    0,1,0,0,0,1,0,0,0,0,0,0,0,117,80,117,115,104,67,111,110,115,116,97,110,116,0,171,171,100,0,0,0,2,0,0,0,140,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0,220,0,0,0,0,0,0,0,8,0,0,0,2,0,0,0,240,0,0,
-    0,0,0,0,0,255,255,255,255,0,0,0,0,255,255,255,255,0,0,0,0,20,1,0,0,8,0,0,0,8,0,0,0,2,0,0,0,240,0,0,0,0,0,0,0,255,255,255,255,0,0,0,0,255,255,255,255,0,0,0,0,112,99,95,117,83,99,97,
-    108,101,0,102,108,111,97,116,50,0,171,171,171,1,0,3,0,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,230,0,0,0,112,99,95,117,84,114,97,110,115,108,97,116,101,0,77,105,99,114,
-    111,115,111,102,116,32,40,82,41,32,72,76,83,76,32,83,104,97,100,101,114,32,67,111,109,112,105,108,101,114,32,49,48,46,49,0,171,171,73,83,71,78,92,0,0,0,3,0,0,0,8,0,0,0,80,0,0,0,0,0,
-    0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,3,0,0,80,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,3,0,0,80,0,0,0,2,0,0,0,0,0,0,0,3,0,0,0,2,0,0,0,15,15,0,0,84,69,88,67,79,79,82,68,0,171,171,171,79,83,
-    71,78,104,0,0,0,3,0,0,0,8,0,0,0,80,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,0,0,0,80,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,12,0,0,89,0,0,0,0,0,0,0,1,0,0,0,3,0,0,0,2,0,0,0,15,0,0,
-    0,84,69,88,67,79,79,82,68,0,83,86,95,80,111,115,105,116,105,111,110,0,171,171,171,83,72,69,88,40,1,0,0,81,0,1,0,74,0,0,0,106,8,0,1,89,0,0,7,70,142,48,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
-    0,0,1,0,0,0,95,0,0,3,50,16,16,0,0,0,0,0,95,0,0,3,50,16,16,0,1,0,0,0,95,0,0,3,242,16,16,0,2,0,0,0,101,0,0,3,242,32,16,0,0,0,0,0,101,0,0,3,50,32,16,0,1,0,0,0,103,0,0,4,242,32,16,0,2,
-    0,0,0,1,0,0,0,104,0,0,2,1,0,0,0,50,0,0,13,50,0,16,0,0,0,0,0,70,16,16,0,0,0,0,0,70,128,48,0,0,0,0,0,0,0,0,0,0,0,0,0,230,138,48,0,0,0,0,0,0,0,0,0,0,0,0,0,54,0,0,6,34,32,16,0,2,0,0,0,
-    26,0,16,128,65,0,0,0,0,0,0,0,54,0,0,5,242,32,16,0,0,0,0,0,70,30,16,0,2,0,0,0,54,0,0,5,18,32,16,0,2,0,0,0,10,0,16,0,0,0,0,0,54,0,0,8,194,32,16,0,2,0,0,0,2,64,0,0,0,0,0,0,0,0,0,0,0,0,
-    0,0,0,0,128,63,54,0,0,5,50,32,16,0,1,0,0,0,70,16,16,0,1,0,0,0,62,0,0,1,83,84,65,84,148,0,0,0,7,0,0,0,1,0,0,0,0,0,0,0,6,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-    0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-};
-const uint8_t dxbc_fragment[744]  = {
-    68,88,66,67,235,219,43,109,38,151,39,223,98,41,193,28,215,98,67,110,1,0,0,0,232,2,0,0,5,0,0,0,52,0,0,0,12,1,0,0,88,1,0,0,140,1,0,0,76,2,0,0,82,68,69,70,208,0,0,0,0,0,0,0,0,0,0,0,2,
-    0,0,0,60,0,0,0,1,5,255,255,0,5,0,0,167,0,0,0,19,19,68,37,60,0,0,0,24,0,0,0,40,0,0,0,40,0,0,0,36,0,0,0,12,0,0,0,0,0,0,0,140,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,
-    0,0,2,0,0,0,0,0,0,0,158,0,0,0,2,0,0,0,5,0,0,0,4,0,0,0,255,255,255,255,0,0,0,0,1,0,0,0,12,0,0,0,2,0,0,0,0,0,0,0,95,115,84,101,120,116,117,114,101,95,115,97,109,112,108,101,114,0,115,
-    84,101,120,116,117,114,101,0,77,105,99,114,111,115,111,102,116,32,40,82,41,32,72,76,83,76,32,83,104,97,100,101,114,32,67,111,109,112,105,108,101,114,32,49,48,46,49,0,171,73,83,71,78,
-    68,0,0,0,2,0,0,0,8,0,0,0,56,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,15,0,0,56,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,3,3,0,0,84,69,88,67,79,79,82,68,0,171,171,171,79,83,71,78,44,0,
-    0,0,1,0,0,0,8,0,0,0,32,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,15,0,0,0,83,86,95,84,97,114,103,101,116,0,171,171,83,72,69,88,184,0,0,0,81,0,0,0,46,0,0,0,106,8,0,1,90,0,0,6,70,110,48,
-    0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,88,24,0,7,70,126,48,0,0,0,0,0,0,0,0,0,0,0,0,0,85,85,0,0,2,0,0,0,98,16,0,3,242,16,16,0,0,0,0,0,98,16,0,3,50,16,16,0,1,0,0,0,101,0,0,3,242,32,16,0,0,
-    0,0,0,104,0,0,2,1,0,0,0,69,0,0,11,242,0,16,0,0,0,0,0,70,16,16,0,1,0,0,0,70,126,32,0,0,0,0,0,0,0,0,0,0,96,32,0,0,0,0,0,0,0,0,0,56,0,0,7,242,32,16,0,0,0,0,0,70,14,16,0,0,0,0,0,70,30,
-    16,0,0,0,0,0,62,0,0,1,83,84,65,84,148,0,0,0,3,0,0,0,1,0,0,0,0,0,0,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
-    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-};
-
-#ifdef __APPLE__
-#include <TargetConditionals.h>
-#if TARGET_OS_MAC
-const uint8_t metallib_vertex[3892]  = {
-    77,84,76,66,1,128,2,0,7,0,0,129,14,0,0,0,52,15,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,12,1,0,0,0,0,0,0,8,0,0,0,0,0,0,0,20,1,0,0,0,0,0,0,32,
-    14,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,0,72,65,83,72,32,0,62,81,190,157,8,240,236,158,164,213,65,62,170,226,96,136,231,243,238,160,100,
-    26,13,254,254,64,19,129,180,3,149,75,77,68,83,90,8,0,32,14,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,6,0,3,0,1,0,69,78,68,84,
-    69,78,68,84,45,0,0,0,86,65,84,84,24,0,3,0,97,80,111,115,0,0,128,97,85,86,0,1,128,97,67,111,108,111,114,0,2,128,86,65,84,89,5,0,3,0,4,4,6,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,
-    11,0,0,0,0,20,0,0,0,8,14,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,0,0,74,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,
-    6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,16,69,2,66,146,11,66,132,16,50,20,56,8,24,75,10,50,66,136,72,112,196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,
-    32,201,1,50,66,132,24,42,40,42,144,49,124,176,92,145,32,196,200,0,0,0,137,32,0,0,24,0,0,0,50,34,8,9,32,98,70,0,33,43,36,152,16,33,37,36,152,16,25,39,12,133,164,144,96,66,100,92,32,
-    36,100,130,224,153,1,24,70,32,128,97,4,1,184,67,72,32,37,77,17,37,76,62,149,82,210,193,57,141,52,1,205,148,4,145,65,4,66,48,197,136,68,145,13,4,204,17,128,129,10,228,28,1,40,12,34,
-    8,194,48,2,145,140,0,0,0,0,0,81,24,0,0,100,0,0,0,27,246,35,248,255,255,255,255,1,48,5,192,15,0,56,0,254,0,144,0,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,
-    192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,
-    202,225,28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,
-    119,104,131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,
-    7,121,168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,
-    13,232,65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,
-    3,113,168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,195,24,8,
-    4,176,0,164,0,84,65,128,4,105,0,13,225,144,14,242,208,6,226,80,15,230,96,14,229,32,15,109,224,14,239,208,6,225,192,14,233,16,14,243,0,0,0,73,24,0,0,1,0,0,0,19,132,64,0,19,176,112,72,
-    7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,118,8,135,113,120,135,121,192,135,56,160,3,55,128,3,55,128,131,13,183,81,14,109,0,15,122,96,7,116,160,7,118,64,7,122,96,7,116,
-    208,6,233,16,7,122,128,7,122,128,7,109,144,14,120,160,7,120,160,7,120,208,6,233,16,7,118,160,7,113,96,7,122,16,7,118,208,6,233,48,7,114,160,7,115,32,7,122,48,7,114,208,6,233,96,7,116,
-    160,7,118,64,7,122,96,7,116,208,6,230,48,7,114,160,7,115,32,7,122,48,7,114,208,6,230,96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,16,7,118,160,7,113,96,7,122,16,7,118,208,6,246,32,
-    7,116,160,7,115,32,7,122,48,7,114,208,6,246,48,7,114,160,7,115,32,7,122,48,7,114,208,6,246,64,7,120,160,7,118,64,7,122,96,7,116,208,6,246,96,7,116,160,7,118,64,7,122,96,7,116,208,6,
-    246,144,7,118,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,114,128,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,144,7,114,160,7,114,80,7,118,160,7,114,80,7,118,208,
-    6,246,32,7,117,96,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,117,16,7,114,160,7,117,16,7,114,160,7,117,16,7,114,208,6,246,16,7,112,32,7,116,160,7,113,0,7,114,64,7,122,16,7,112,
-    32,7,116,208,6,238,128,7,122,16,7,118,160,7,115,32,7,26,33,12,89,48,0,210,208,67,42,160,48,0,0,8,0,0,0,4,0,0,0,0,0,10,64,98,131,64,81,166,1,0,128,44,16,0,11,0,0,0,50,30,152,16,25,17,
-    76,144,140,9,38,71,198,4,67,202,34,40,129,66,40,135,242,41,64,129,130,40,144,98,24,1,40,3,218,17,0,210,177,132,39,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,
-    67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,
-    120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,
-    97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,
-    135,119,128,135,95,8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,
-    29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,
-    7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,
-    29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,
-    30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,
-    129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,
-    212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,
-    14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,
-    7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,
-    248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,32,0,0,26,1,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,152,
-    6,100,208,82,0,0,0,139,210,88,216,6,109,80,28,20,27,71,6,209,18,25,76,178,24,6,179,64,18,49,24,202,131,68,148,161,68,87,35,0,0,0,0,83,68,75,32,86,101,114,115,105,111,110,119,99,104,
-    97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,
-    95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,
-    97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,
-    112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,
-    56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,
-    116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,
-    97,105,114,46,118,101,114,116,101,120,95,111,117,116,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,
-    116,52,97,105,114,46,97,114,103,95,110,97,109,101,79,117,116,95,67,111,108,111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,79,117,116,95,85,86,97,105,114,46,112,
-    111,115,105,116,105,111,110,103,108,95,80,111,115,105,116,105,111,110,97,105,114,46,118,101,114,116,101,120,95,105,110,112,117,116,97,105,114,46,108,111,99,97,116,105,111,110,95,105,
-    110,100,101,120,97,80,111,115,97,85,86,97,67,111,108,111,114,97,105,114,46,98,117,102,102,101,114,97,105,114,46,98,117,102,102,101,114,95,115,105,122,101,97,105,114,46,114,101,97,100,
-    97,105,114,46,97,100,100,114,101,115,115,95,115,112,97,99,101,97,105,114,46,115,116,114,117,99,116,95,116,121,112,101,95,105,110,102,111,117,83,99,97,108,101,117,84,114,97,110,115,
-    108,97,116,101,97,105,114,46,97,114,103,95,116,121,112,101,95,115,105,122,101,97,105,114,46,97,114,103,95,116,121,112,101,95,97,108,105,103,110,95,115,105,122,101,117,80,117,115,104,
-    67,111,110,115,116,97,110,116,112,99,0,0,0,166,119,0,0,0,0,0,0,48,130,144,4,35,8,74,51,130,144,8,35,8,201,48,130,144,16,35,8,73,49,130,144,24,35,8,201,49,130,144,32,35,8,73,50,130,
-    144,40,35,8,201,50,130,112,0,51,12,106,16,172,193,12,3,27,8,109,48,195,224,6,131,26,204,48,184,1,241,6,51,12,110,80,188,193,12,131,27,24,111,48,195,224,6,7,28,204,48,184,1,18,7,51,
-    12,110,144,200,193,12,129,50,195,160,6,115,64,7,51,16,75,29,176,1,29,204,16,48,51,4,205,12,129,51,131,241,64,145,52,81,51,24,79,21,89,211,53,67,129,69,210,148,205,48,152,194,41,160,
-    194,12,9,29,104,27,29,176,65,100,77,220,12,9,27,104,27,27,176,65,100,77,221,12,137,26,104,155,26,176,65,36,77,222,12,10,29,196,1,29,88,100,16,7,113,64,7,86,25,204,64,213,193,7,6,114,
-    176,209,1,27,132,129,24,168,193,24,180,130,25,200,193,25,196,65,132,6,83,26,204,64,168,194,42,176,130,43,204,48,216,65,42,188,194,157,1,192,113,28,199,113,28,199,113,28,199,185,129,
-    27,184,129,27,184,129,27,184,129,27,184,129,69,7,122,96,89,22,29,208,129,27,208,1,46,224,2,46,240,3,122,128,130,140,4,38,40,35,54,54,187,54,151,182,55,178,58,182,50,23,51,182,176,179,
-    185,81,18,59,184,3,60,200,3,61,216,3,62,232,3,63,72,133,141,205,174,205,37,141,172,204,141,110,148,224,15,114,9,75,147,115,177,43,147,155,75,123,115,27,37,0,133,164,194,210,228,92,
-    216,194,220,206,234,194,206,202,190,236,202,228,230,210,222,220,70,9,66,33,167,176,52,57,151,177,183,54,184,52,182,178,175,55,56,186,180,55,183,185,81,6,81,24,5,82,72,37,44,77,206,
-    197,174,76,142,174,12,111,148,224,21,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,
-    29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,
-    195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,
-    15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,68,0,0,0,19,4,65,44,16,0,0,0,11,0,0,0,148,51,0,180,37,
-    64,61,7,161,72,146,52,7,161,72,9,65,48,26,48,2,48,70,0,130,32,136,127,20,115,16,150,117,97,36,163,1,52,51,0,0,0,0,0,241,48,0,0,32,0,0,0,34,71,200,144,81,18,196,43,0,0,0,0,207,115,89,
-    0,111,109,110,105,112,111,116,101,110,116,32,99,104,97,114,83,105,109,112,108,101,32,67,43,43,32,84,66,65,65,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,
-    110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,97,114,103,40,51,41,0,19,132,133,89,33,216,194,44,172,24,110,193,22,104,97,67,32,11,27,134,88,192,133,90,216,48,228,
-    66,46,212,194,134,224,22,0,0,157,134,5,146,40,16,130,1,36,254,157,6,103,234,40,16,130,67,0,254,131,12,1,226,12,50,4,138,51,134,48,68,22,128,255,28,195,16,76,179,13,204,5,204,54,4,89,
-    48,219,16,12,194,6,1,49,0,4,0,0,0,91,138,32,200,133,67,23,182,20,68,144,11,135,46,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,134,6,0,0,0,0,0,0,0,0,101,12,0,0,31,0,0,0,18,3,148,
-    240,0,0,0,0,3,0,0,0,5,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,1,0,0,0,112,0,0,0,0,0,0,0,14,0,0,0,24,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,112,0,0,0,0,0,0,0,0,0,0,0,
-    1,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,0,0,0,0,93,12,0,0,13,0,0,0,18,3,148,102,0,0,0,0,109,97,105,110,48,51,50,48,50,51,46,51,54,56,97,105,114,54,
-    52,45,97,112,112,108,101,45,109,97,99,111,115,120,49,52,46,48,46,48,0,0,0,0,0,0,0,0,0,0,
-};
-const uint8_t metallib_fragment[3787]  = {
-    77,84,76,66,1,128,2,0,7,0,0,129,14,0,0,0,203,14,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,227,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,235,0,0,0,0,0,0,0,
-    224,13,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,1,72,65,83,72,32,0,201,103,233,140,10,95,185,107,79,93,85,82,78,218,248,8,95,184,8,139,191,
-    155,174,56,51,95,203,135,255,117,44,62,77,68,83,90,8,0,224,13,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,6,0,3,0,1,0,69,78,68,
-    84,69,78,68,84,4,0,0,0,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,11,0,0,0,0,20,0,0,0,196,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,
-    12,0,0,44,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,20,69,2,66,146,11,66,164,16,50,20,56,8,24,75,10,50,82,136,72,112,
-    196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,32,201,1,50,82,132,24,42,40,42,144,49,124,176,92,145,32,197,200,0,0,0,137,32,0,0,31,0,0,0,50,34,72,9,32,98,70,0,33,
-    43,36,152,20,33,37,36,152,20,25,39,12,133,164,144,96,82,100,92,32,36,101,130,128,154,1,24,70,32,128,27,132,97,4,1,64,74,154,34,74,152,252,127,34,174,137,138,136,223,30,254,105,140,
-    0,24,68,32,2,140,164,41,162,132,201,255,37,128,121,22,34,250,167,49,2,96,16,193,16,76,33,194,40,135,208,28,1,114,132,160,230,8,130,57,2,48,24,70,16,26,163,172,114,6,115,12,128,70,111,
-    32,64,5,218,8,0,0,81,24,0,0,105,0,0,0,27,246,35,248,255,255,255,255,1,104,3,96,13,0,83,0,252,0,144,128,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,192,28,
-    224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,202,225,
-    28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,119,104,
-    131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,7,121,
-    168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,13,232,
-    65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,3,113,
-    168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,131,33,12,192,
-    2,84,27,140,129,0,22,160,218,0,17,255,255,255,255,63,0,109,0,172,1,96,10,128,31,0,18,80,1,125,176,193,40,2,96,1,170,13,134,33,0,11,80,109,96,142,255,255,255,255,31,128,54,0,214,0,144,
-    128,10,232,3,0,73,24,0,0,4,0,0,0,19,134,64,24,38,12,68,97,76,24,142,194,0,0,0,0,19,176,112,72,7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,118,8,135,113,120,135,121,192,
-    135,56,160,3,55,128,3,55,128,131,13,183,81,14,109,0,15,122,96,7,116,160,7,118,64,7,122,96,7,116,208,6,233,16,7,122,128,7,122,128,7,109,144,14,120,160,7,120,160,7,120,208,6,233,16,7,
-    118,160,7,113,96,7,122,16,7,118,208,6,233,48,7,114,160,7,115,32,7,122,48,7,114,208,6,233,96,7,116,160,7,118,64,7,122,96,7,116,208,6,230,48,7,114,160,7,115,32,7,122,48,7,114,208,6,230,
-    96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,16,7,118,160,7,113,96,7,122,16,7,118,208,6,246,32,7,116,160,7,115,32,7,122,48,7,114,208,6,246,48,7,114,160,7,115,32,7,122,48,7,114,208,
-    6,246,64,7,120,160,7,118,64,7,122,96,7,116,208,6,246,96,7,116,160,7,118,64,7,122,96,7,116,208,6,246,144,7,118,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,114,128,7,122,16,
-    7,114,128,7,122,16,7,114,128,7,109,96,15,113,144,7,114,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,32,7,117,96,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,117,16,7,114,160,
-    7,117,16,7,114,160,7,117,16,7,114,208,6,246,16,7,112,32,7,116,160,7,113,0,7,114,64,7,122,16,7,112,32,7,116,208,6,238,128,7,122,16,7,118,160,7,115,32,7,26,33,12,89,48,0,210,208,67,42,
-    160,64,0,0,8,0,0,0,4,0,0,0,0,0,10,96,72,85,108,15,16,0,2,0,0,128,0,0,0,0,0,64,1,72,108,16,40,234,50,0,0,144,5,2,0,0,0,10,0,0,0,50,30,152,16,25,17,76,144,140,9,38,71,198,4,67,106,69,
-    80,2,133,80,14,229,83,128,2,5,81,32,197,48,2,80,6,36,199,18,158,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,
-    230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,
-    112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,
-    188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,8,135,113,24,135,114,152,135,121,
-    152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,
-    57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,
-    0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,
-    36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,
-    59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,
-    65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,
-    135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,
-    23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,
-    14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,
-    32,0,0,252,0,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,56,6,220,41,1,0,0,0,139,210,88,216,6,109,80,28,20,27,71,
-    6,81,100,48,134,180,40,15,178,24,197,34,41,24,178,28,13,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,
-    97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,
-    46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,
-    101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,
-    114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,
-    101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,
-    112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,114,101,110,100,101,114,95,116,97,114,103,101,116,97,105,114,
-    46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,97,114,103,95,110,97,109,101,102,67,111,108,111,114,97,105,114,46,102,114,97,103,109,101,110,
-    116,95,105,110,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,99,101,110,116,101,114,97,105,114,46,112,101,114,115,112,101,99,116,105,118,101,73,110,95,67,111,108,
-    111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,73,110,95,85,86,97,105,114,46,116,101,120,116,117,114,101,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,
-    100,101,120,97,105,114,46,115,97,109,112,108,101,116,101,120,116,117,114,101,50,100,60,102,108,111,97,116,44,32,115,97,109,112,108,101,62,115,84,101,120,116,117,114,101,97,105,114,
-    46,115,97,109,112,108,101,114,115,97,109,112,108,101,114,115,84,101,120,116,117,114,101,83,109,112,108,114,0,198,96,0,0,0,0,0,0,48,130,208,8,35,8,82,51,130,208,12,35,8,13,49,130,208,
-    20,35,8,141,49,130,208,28,35,8,13,50,130,208,36,35,8,141,50,130,208,44,35,8,13,51,130,144,0,51,12,100,16,148,193,12,131,25,8,103,48,195,128,6,3,25,204,48,160,1,145,6,51,12,104,80,164,
-    193,12,3,26,24,105,48,195,128,6,135,26,204,48,160,1,178,6,51,12,104,144,176,193,12,129,50,195,64,6,109,224,6,51,16,203,27,152,129,27,204,16,48,51,4,205,12,129,51,195,241,184,129,27,
-    64,145,52,205,16,128,194,12,137,27,80,149,117,65,145,132,205,144,152,1,149,89,23,164,73,219,12,10,25,112,157,27,152,129,7,125,18,24,204,144,188,65,24,116,110,96,6,144,24,72,99,48,3,
-    33,10,163,64,10,165,48,195,0,7,161,96,10,71,6,0,199,113,28,199,113,28,199,113,28,231,6,110,224,6,110,224,6,110,224,6,110,224,6,22,29,232,129,101,89,166,192,177,2,43,144,131,58,128,
-    130,140,4,38,40,35,54,54,187,54,151,182,55,178,58,182,50,23,51,182,176,179,185,81,18,56,136,3,57,152,3,58,168,3,59,184,3,60,72,133,141,205,174,205,37,141,172,204,141,110,148,32,15,
-    114,9,75,147,115,177,43,147,155,75,123,115,27,37,208,131,164,194,210,228,92,216,194,220,206,234,194,206,202,190,236,202,228,230,210,222,220,70,9,246,32,167,176,52,57,151,177,183,54,
-    184,52,182,178,175,55,56,186,180,55,183,185,81,6,62,232,3,63,72,38,44,77,206,197,76,46,236,172,173,204,141,110,148,192,20,0,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,
-    88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,
-    80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,
-    28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,
-    67,56,144,195,1,0,0,0,97,32,0,0,49,0,0,0,19,4,65,44,16,0,0,0,4,0,0,0,196,106,96,4,128,220,8,0,129,17,0,18,51,0,0,0,241,48,0,0,28,0,0,0,34,71,200,144,81,14,196,42,0,0,0,0,23,134,1,0,
-    97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,115,97,109,112,108,101,114,115,97,105,114,
-    45,97,108,105,97,115,45,115,99,111,112,101,45,116,101,120,116,117,114,101,115,0,43,132,85,64,133,21,3,43,172,66,42,172,24,90,97,21,84,97,131,208,10,172,0,0,35,6,205,16,130,96,240,88,
-    135,129,20,3,33,8,204,104,66,0,96,176,136,255,108,3,17,0,27,4,196,0,0,0,2,0,0,0,91,6,224,104,5,0,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,251,5,0,0,0,0,0,0,0,0,101,12,0,0,37,
-    0,0,0,18,3,148,40,1,0,0,0,3,0,0,0,32,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,2,0,0,0,136,0,0,0,0,0,0,0,41,0,0,0,24,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,136,0,0,0,
-    0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,5,0,0,0,27,0,0,0,5,0,0,0,27,0,0,0,255,255,255,255,8,36,0,0,0,0,0,0,93,12,0,0,20,0,0,0,18,3,
-    148,161,0,0,0,0,109,97,105,110,48,97,105,114,46,115,97,109,112,108,101,95,116,101,120,116,117,114,101,95,50,100,46,118,52,102,51,50,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,
-    112,112,108,101,45,109,97,99,111,115,120,49,52,46,48,46,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-};
-#elif TARGET_OS_IPHONE
-const uint8_t metallib_vertex[3876]  = {
-    77,84,76,66,1,0,2,0,7,0,0,130,18,0,1,0,36,15,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,12,1,0,0,0,0,0,0,8,0,0,0,0,0,0,0,20,1,0,0,0,0,0,0,16,
-    14,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,0,72,65,83,72,32,0,240,54,230,217,232,66,102,78,35,5,77,235,101,252,229,192,148,96,126,162,111,
-    77,253,247,211,52,17,198,182,137,68,244,77,68,83,90,8,0,16,14,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,7,0,3,0,2,0,69,78,68,
-    84,69,78,68,84,45,0,0,0,86,65,84,84,24,0,3,0,97,80,111,115,0,0,128,97,85,86,0,1,128,97,67,111,108,111,114,0,2,128,86,65,84,89,5,0,3,0,4,4,6,69,78,68,84,4,0,0,0,69,78,68,84,222,192,
-    23,11,0,0,0,0,20,0,0,0,252,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,0,0,72,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,
-    4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,16,69,2,66,146,11,66,132,16,50,20,56,8,24,75,10,50,66,136,72,112,196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,
-    136,32,201,1,50,66,132,24,42,40,42,144,49,124,176,92,145,32,196,200,0,0,0,137,32,0,0,24,0,0,0,50,34,8,9,32,98,70,0,33,43,36,152,16,33,37,36,152,16,25,39,12,133,164,144,96,66,100,92,
-    32,36,100,130,224,153,1,24,70,32,128,97,4,1,184,67,72,32,37,77,17,37,76,62,149,82,210,193,57,141,52,1,205,148,4,145,65,4,66,48,197,136,68,145,13,4,204,17,128,129,10,228,28,1,40,12,
-    34,8,194,48,2,145,140,0,0,0,0,0,81,24,0,0,100,0,0,0,27,246,35,248,255,255,255,255,1,48,5,192,15,0,56,0,254,0,144,0,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,
-    218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,
-    29,202,225,28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,
-    119,104,131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,
-    7,121,168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,
-    13,232,65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,
-    3,113,168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,195,24,8,
-    4,176,0,164,0,84,65,128,4,105,0,13,225,144,14,242,208,6,226,80,15,230,96,14,229,32,15,109,224,14,239,208,6,225,192,14,233,16,14,243,0,0,0,73,24,0,0,1,0,0,0,19,132,64,0,19,170,112,72,
-    7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,116,120,135,121,136,3,60,112,131,56,112,3,56,216,112,27,229,208,6,240,160,7,118,64,7,122,96,7,116,160,7,118,64,7,109,144,14,
-    113,160,7,120,160,7,120,208,6,233,128,7,122,128,7,122,128,7,109,144,14,113,96,7,122,16,7,118,160,7,113,96,7,109,144,14,115,32,7,122,48,7,114,160,7,115,32,7,109,144,14,118,64,7,122,
-    96,7,116,160,7,118,64,7,109,96,14,115,32,7,122,48,7,114,160,7,115,32,7,109,96,14,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,113,96,7,122,16,7,118,160,7,113,96,7,109,96,15,114,64,
-    7,122,48,7,114,160,7,115,32,7,109,96,15,115,32,7,122,48,7,114,160,7,115,32,7,109,96,15,116,128,7,122,96,7,116,160,7,118,64,7,109,96,15,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,
-    121,96,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,32,7,120,160,7,113,32,7,120,160,7,113,32,7,120,208,6,246,16,7,121,32,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,114,
-    80,7,118,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,80,7,113,32,7,122,80,7,113,32,7,122,80,7,113,32,7,109,96,15,113,0,7,114,64,7,122,16,7,112,32,7,116,160,7,113,0,7,114,64,7,109,
-    224,14,120,160,7,113,96,7,122,48,7,114,160,17,194,144,5,3,32,13,61,164,2,10,3,0,128,0,0,0,64,0,0,0,0,0,160,0,36,54,8,20,85,26,0,0,200,2,1,0,11,0,0,0,50,30,152,16,25,17,76,144,140,9,
-    38,71,198,4,67,202,34,40,129,66,40,135,242,41,64,129,130,40,144,17,128,50,160,29,1,32,29,75,144,2,0,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,
-    140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,
-    7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,
-    59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,
-    8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,
-    67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,
-    135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,
-    81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,
-    29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,
-    192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,
-    113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,
-    35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,
-    119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,
-    119,168,7,120,152,7,0,0,0,0,121,32,0,0,25,1,0,0,114,30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,152,6,100,208,82,0,0,0,139,
-    210,88,216,6,109,80,28,20,27,71,6,209,18,25,76,178,24,6,179,64,18,49,24,202,131,68,148,161,68,87,35,0,0,0,0,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,
-    101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,
-    97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,
-    116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,
-    65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,
-    108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,
-    95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,118,101,
-    114,116,101,120,95,111,117,116,112,117,116,117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,97,114,103,95,116,121,112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,
-    97,114,103,95,110,97,109,101,79,117,116,95,67,111,108,111,114,117,115,101,114,40,108,111,99,110,49,41,102,108,111,97,116,50,79,117,116,95,85,86,97,105,114,46,112,111,115,105,116,105,
-    111,110,103,108,95,80,111,115,105,116,105,111,110,97,105,114,46,118,101,114,116,101,120,95,105,110,112,117,116,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,100,101,120,97,
-    80,111,115,97,85,86,97,67,111,108,111,114,97,105,114,46,98,117,102,102,101,114,97,105,114,46,98,117,102,102,101,114,95,115,105,122,101,97,105,114,46,114,101,97,100,97,105,114,46,97,
-    100,100,114,101,115,115,95,115,112,97,99,101,97,105,114,46,115,116,114,117,99,116,95,116,121,112,101,95,105,110,102,111,117,83,99,97,108,101,117,84,114,97,110,115,108,97,116,101,97,
-    105,114,46,97,114,103,95,116,121,112,101,95,115,105,122,101,97,105,114,46,97,114,103,95,116,121,112,101,95,97,108,105,103,110,95,115,105,122,101,117,80,117,115,104,67,111,110,115,116,
-    97,110,116,112,99,0,0,0,230,117,0,0,0,0,0,0,48,130,144,4,35,8,10,51,130,144,8,35,8,201,48,130,144,16,35,8,73,49,130,144,24,35,8,201,49,130,144,32,35,8,73,50,130,144,40,35,8,7,48,195,
-    160,6,193,26,204,48,176,129,208,6,51,12,110,48,168,193,12,131,27,16,111,48,195,224,6,197,27,204,48,184,129,241,6,51,12,110,112,192,193,12,131,27,32,113,48,195,224,6,137,28,204,16,40,
-    51,12,106,224,6,115,48,3,177,208,129,26,204,193,12,1,51,67,208,204,16,56,51,24,15,20,73,19,53,131,241,84,145,53,93,51,20,88,36,77,217,12,67,41,152,194,41,204,144,204,129,182,205,1,
-    27,68,214,196,205,144,176,129,182,177,1,27,68,214,212,205,144,168,129,182,169,1,27,68,210,228,205,160,204,65,28,204,129,69,6,113,16,7,115,96,149,193,12,20,29,124,96,32,7,219,28,176,
-    65,24,136,129,26,140,1,43,152,129,28,156,65,28,68,104,48,165,193,12,68,42,168,194,42,180,194,12,67,29,160,130,43,156,25,0,28,199,113,28,199,113,28,199,113,110,224,6,110,224,6,110,224,
-    6,110,224,6,110,96,209,129,30,88,150,69,7,116,224,6,116,128,11,184,128,11,252,128,30,160,32,35,129,9,202,136,141,205,174,205,165,237,141,172,142,173,204,197,140,45,236,108,110,148,
-    164,14,236,224,14,240,32,15,244,96,15,248,160,15,82,97,99,179,107,115,73,35,43,115,163,27,37,240,131,92,194,210,228,92,236,202,228,230,210,222,220,70,9,254,32,169,176,52,57,23,182,
-    48,183,179,186,176,179,178,47,187,50,185,185,180,55,183,81,2,80,200,41,44,77,206,101,236,173,13,46,141,173,236,235,13,142,46,237,205,109,110,148,33,20,68,97,20,82,9,75,147,115,177,
-    43,147,163,43,195,27,37,112,5,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,
-    33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,
-    180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,
-    128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,68,0,0,0,19,4,65,44,16,0,0,0,11,0,0,0,148,51,0,197,64,91,2,212,
-    115,16,73,20,69,115,16,73,36,17,4,163,1,35,0,99,4,32,8,130,248,71,49,7,97,89,23,70,50,26,64,51,3,0,0,0,241,48,0,0,32,0,0,0,34,71,200,144,81,18,196,43,0,0,0,0,207,115,89,0,111,109,110,
-    105,112,111,116,101,110,116,32,99,104,97,114,83,105,109,112,108,101,32,67,43,43,32,84,66,65,65,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,
-    105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,97,114,103,40,51,41,0,19,132,101,89,33,212,130,44,172,24,108,161,22,102,97,67,16,11,27,6,88,184,5,90,216,48,224,2,46,208,194,134,
-    192,22,0,0,157,6,38,154,40,16,130,65,36,254,157,134,135,234,40,16,130,67,0,254,131,12,1,226,12,50,4,138,51,134,48,68,22,128,255,28,195,16,76,179,13,12,6,204,54,4,90,48,219,16,12,194,
-    6,1,49,0,4,0,0,0,91,138,32,192,133,35,23,182,20,68,128,11,71,46,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,132,6,0,0,0,0,0,0,0,0,101,12,0,0,31,0,0,0,18,3,148,240,0,0,0,0,3,0,
-    0,0,5,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,1,0,0,0,112,0,0,0,0,0,0,0,14,0,0,0,21,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,112,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
-    0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,0,0,0,0,93,12,0,0,12,0,0,0,18,3,148,99,0,0,0,0,109,97,105,110,48,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,112,112,
-    108,101,45,105,111,115,49,56,46,49,46,48,0,0,0,0,0,
-};
-const uint8_t metallib_fragment[3771]  = {
-    77,84,76,66,1,0,2,0,7,0,0,130,18,0,1,0,187,14,0,0,0,0,0,0,88,0,0,0,0,0,0,0,123,0,0,0,0,0,0,0,219,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,227,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,235,0,0,0,0,0,0,0,208,
-    13,0,0,0,0,0,0,1,0,0,0,123,0,0,0,78,65,77,69,6,0,109,97,105,110,48,0,84,89,80,69,1,0,1,72,65,83,72,32,0,167,26,51,31,140,153,203,226,66,149,243,47,185,58,96,202,28,176,71,121,86,159,
-    244,234,235,69,155,58,121,67,241,212,77,68,83,90,8,0,208,13,0,0,0,0,0,0,79,70,70,84,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,86,69,82,83,8,0,2,0,7,0,3,0,2,0,69,78,68,84,
-    69,78,68,84,4,0,0,0,69,78,68,84,4,0,0,0,69,78,68,84,222,192,23,11,0,0,0,0,20,0,0,0,180,13,0,0,255,255,255,255,66,67,192,222,53,20,0,0,3,0,0,0,98,12,48,36,128,16,5,200,20,0,0,0,33,12,
-    0,0,41,3,0,0,11,2,33,0,2,0,0,0,22,0,0,0,7,129,35,145,65,200,4,73,6,16,50,57,146,1,132,12,37,5,8,25,30,4,139,98,128,20,69,2,66,146,11,66,164,16,50,20,56,8,24,75,10,50,82,136,72,112,
-    196,33,35,68,18,135,140,16,65,146,2,100,200,8,177,20,32,67,70,136,32,201,1,50,82,132,24,42,40,42,144,49,124,176,92,145,32,197,200,0,0,0,137,32,0,0,31,0,0,0,50,34,72,9,32,98,70,0,33,
-    43,36,152,20,33,37,36,152,20,25,39,12,133,164,144,96,82,100,92,32,36,101,130,128,154,1,24,70,32,128,27,132,97,4,1,64,74,154,34,74,152,252,127,34,174,137,138,136,223,30,254,105,140,
-    0,24,68,32,2,140,164,41,162,132,201,255,37,128,121,22,34,250,167,49,2,96,16,193,16,76,33,194,40,135,208,28,1,114,132,160,230,8,130,57,2,48,24,70,16,26,163,172,114,6,115,12,128,70,111,
-    32,64,5,218,8,0,0,81,24,0,0,105,0,0,0,27,246,35,248,255,255,255,255,1,104,3,96,13,0,83,0,252,0,144,128,10,232,3,34,28,224,1,30,228,225,29,240,161,13,204,161,30,220,97,28,218,192,28,
-    224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,128,48,7,121,8,135,118,40,135,54,128,135,119,72,7,119,160,135,114,144,7,32,28,216,129,29,0,162,29,210,193,29,218,128,29,202,225,
-    28,194,129,29,218,192,30,202,97,28,232,225,29,228,161,13,238,33,29,200,129,30,208,1,136,3,57,192,3,96,112,135,119,104,3,113,168,135,116,96,7,122,72,7,119,152,7,128,112,135,119,104,
-    131,116,112,7,115,152,135,54,48,7,120,104,131,118,8,7,122,64,7,128,30,228,161,30,202,1,32,220,225,29,218,192,29,194,193,29,230,161,13,204,1,30,218,160,29,194,129,30,208,1,160,7,121,
-    168,135,114,0,8,119,120,135,54,152,135,116,56,7,119,40,7,114,104,3,125,40,7,121,120,135,121,104,3,115,128,135,54,104,135,112,160,7,116,0,232,65,30,234,161,28,0,194,29,222,161,13,232,
-    65,30,194,1,30,224,33,29,220,225,28,218,160,29,194,129,30,208,1,160,7,121,168,135,114,0,136,121,160,135,112,24,135,117,104,3,120,144,135,119,160,135,114,24,7,122,120,7,121,104,3,113,
-    168,7,115,48,135,114,144,135,54,152,135,116,208,135,114,0,240,0,32,234,193,29,230,33,28,204,161,28,218,192,28,224,161,13,218,33,28,232,1,29,0,122,144,135,122,40,7,96,131,33,12,192,
-    2,84,27,140,129,0,22,160,218,0,17,255,255,255,255,63,0,109,0,172,1,96,10,128,31,0,18,80,1,125,176,193,40,2,96,1,170,13,134,33,0,11,80,109,96,142,255,255,255,255,31,128,54,0,214,0,144,
-    128,10,232,3,0,73,24,0,0,4,0,0,0,19,134,64,24,38,12,68,97,76,24,142,194,0,0,0,0,19,170,112,72,7,121,176,3,58,104,131,112,128,7,120,96,135,114,104,131,116,120,135,121,136,3,60,112,131,
-    56,112,3,56,216,112,27,229,208,6,240,160,7,118,64,7,122,96,7,116,160,7,118,64,7,109,144,14,113,160,7,120,160,7,120,208,6,233,128,7,122,128,7,122,128,7,109,144,14,113,96,7,122,16,7,
-    118,160,7,113,96,7,109,144,14,115,32,7,122,48,7,114,160,7,115,32,7,109,144,14,118,64,7,122,96,7,116,160,7,118,64,7,109,96,14,115,32,7,122,48,7,114,160,7,115,32,7,109,96,14,118,64,7,
-    122,96,7,116,160,7,118,64,7,109,96,15,113,96,7,122,16,7,118,160,7,113,96,7,109,96,15,114,64,7,122,48,7,114,160,7,115,32,7,109,96,15,115,32,7,122,48,7,114,160,7,115,32,7,109,96,15,116,
-    128,7,122,96,7,116,160,7,118,64,7,109,96,15,118,64,7,122,96,7,116,160,7,118,64,7,109,96,15,121,96,7,122,16,7,114,128,7,122,16,7,114,128,7,109,96,15,113,32,7,120,160,7,113,32,7,120,
-    160,7,113,32,7,120,208,6,246,16,7,121,32,7,122,32,7,117,96,7,122,32,7,117,96,7,109,96,15,114,80,7,118,160,7,114,80,7,118,160,7,114,80,7,118,208,6,246,80,7,113,32,7,122,80,7,113,32,
-    7,122,80,7,113,32,7,109,96,15,113,0,7,114,64,7,122,16,7,112,32,7,116,160,7,113,0,7,114,64,7,109,224,14,120,160,7,113,96,7,122,48,7,114,160,17,194,144,5,3,32,13,61,164,2,10,4,0,128,
-    0,0,0,64,0,0,0,0,0,160,0,134,84,197,246,0,1,32,0,0,0,8,0,0,0,0,0,20,128,196,6,129,162,43,3,0,0,89,32,10,0,0,0,50,30,152,16,25,17,76,144,140,9,38,71,198,4,67,106,69,80,2,133,80,14,229,
-    83,128,2,5,81,32,35,0,101,64,114,44,65,10,0,0,0,177,24,0,0,165,0,0,0,51,8,128,28,196,225,28,102,20,1,61,136,67,56,132,195,140,66,128,7,121,120,7,115,152,113,12,230,0,15,237,16,14,244,
-    128,14,51,12,66,30,194,193,29,206,161,28,102,48,5,61,136,67,56,132,131,27,204,3,61,200,67,61,140,3,61,204,120,140,116,112,7,123,8,7,121,72,135,112,112,7,122,112,3,118,120,135,112,32,
-    135,25,204,17,14,236,144,14,225,48,15,110,48,15,227,240,14,240,80,14,51,16,196,29,222,33,28,216,33,29,194,97,30,102,48,137,59,188,131,59,208,67,57,180,3,60,188,131,60,132,3,59,204,
-    240,20,118,96,7,123,104,7,55,104,135,114,104,7,55,128,135,112,144,135,112,96,7,118,40,7,118,248,5,118,120,135,119,128,135,95,8,135,113,24,135,114,152,135,121,152,129,44,238,240,14,
-    238,224,14,245,192,14,236,48,3,98,200,161,28,228,161,28,204,161,28,228,161,28,220,97,28,202,33,28,196,129,29,202,97,6,214,144,67,57,200,67,57,152,67,57,200,67,57,184,195,56,148,67,
-    56,136,3,59,148,195,47,188,131,60,252,130,59,212,3,59,176,195,12,199,105,135,112,88,135,114,112,131,116,104,7,120,96,135,116,24,135,116,160,135,25,206,83,15,238,0,15,242,80,14,228,
-    144,14,227,64,15,225,32,14,236,80,14,51,32,40,29,220,193,30,194,65,30,210,33,28,220,129,30,220,224,28,228,225,29,234,1,30,102,24,81,56,176,67,58,156,131,59,204,80,36,118,96,7,123,104,
-    7,55,96,135,119,120,7,120,152,81,76,244,144,15,240,80,14,51,30,106,30,202,97,28,232,33,29,222,193,29,126,1,30,228,161,28,204,33,29,240,97,6,84,133,131,56,204,195,59,176,67,61,208,67,
-    57,252,194,60,228,67,59,136,195,59,176,195,140,197,10,135,121,152,135,119,24,135,116,8,7,122,40,7,114,152,129,92,227,16,14,236,192,14,229,80,14,243,48,35,193,210,65,30,228,225,23,216,
-    225,29,222,1,30,102,72,25,59,176,131,61,180,131,27,132,195,56,140,67,57,204,195,60,184,193,57,200,195,59,212,3,60,204,72,180,113,8,7,118,96,7,113,8,135,113,88,135,25,219,198,14,236,
-    96,15,237,224,6,240,32,15,229,48,15,229,32,15,246,80,14,110,16,14,227,48,14,229,48,15,243,224,6,233,224,14,228,80,14,248,48,35,226,236,97,28,194,129,29,216,225,23,236,33,29,230,33,
-    29,196,33,29,216,33,29,232,33,31,102,32,157,59,188,67,61,184,3,57,148,131,57,204,88,188,112,112,7,119,120,7,122,8,7,122,72,135,119,112,135,25,206,135,14,229,16,14,240,16,14,236,192,
-    14,239,48,14,243,144,14,244,80,14,51,40,48,8,135,116,144,7,55,48,135,122,112,135,113,160,135,116,120,7,119,248,133,115,144,135,119,168,7,120,152,7,0,0,0,0,121,32,0,0,251,0,0,0,114,
-    30,72,32,67,136,12,25,9,114,50,72,32,35,129,140,145,145,209,68,160,16,40,100,60,49,50,66,142,144,33,163,56,6,220,41,1,0,0,0,139,210,88,216,6,109,80,28,20,27,71,6,81,100,48,134,180,
-    40,15,178,24,197,34,41,24,178,28,13,83,68,75,32,86,101,114,115,105,111,110,119,99,104,97,114,95,115,105,122,101,102,114,97,109,101,45,112,111,105,110,116,101,114,97,105,114,46,109,
-    97,120,95,100,101,118,105,99,101,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,99,111,110,115,116,97,110,116,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,
-    104,114,101,97,100,103,114,111,117,112,95,98,117,102,102,101,114,115,97,105,114,46,109,97,120,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,114,101,97,100,95,119,114,
-    105,116,101,95,116,101,120,116,117,114,101,115,97,105,114,46,109,97,120,95,115,97,109,112,108,101,114,115,65,112,112,108,101,32,109,101,116,97,108,32,118,101,114,115,105,111,110,32,
-    51,50,48,50,51,46,51,54,56,32,40,109,101,116,97,108,102,101,45,51,50,48,50,51,46,51,54,56,41,77,101,116,97,108,97,105,114,46,99,111,109,112,105,108,101,46,100,101,110,111,114,109,115,
-    95,100,105,115,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,97,115,116,95,109,97,116,104,95,101,110,97,98,108,101,97,105,114,46,99,111,109,112,105,108,101,46,102,114,
-    97,109,101,98,117,102,102,101,114,95,102,101,116,99,104,95,101,110,97,98,108,101,97,105,114,46,114,101,110,100,101,114,95,116,97,114,103,101,116,97,105,114,46,97,114,103,95,116,121,
-    112,101,95,110,97,109,101,102,108,111,97,116,52,97,105,114,46,97,114,103,95,110,97,109,101,102,67,111,108,111,114,97,105,114,46,102,114,97,103,109,101,110,116,95,105,110,112,117,116,
-    117,115,101,114,40,108,111,99,110,48,41,97,105,114,46,99,101,110,116,101,114,97,105,114,46,112,101,114,115,112,101,99,116,105,118,101,73,110,95,67,111,108,111,114,117,115,101,114,40,
-    108,111,99,110,49,41,102,108,111,97,116,50,73,110,95,85,86,97,105,114,46,116,101,120,116,117,114,101,97,105,114,46,108,111,99,97,116,105,111,110,95,105,110,100,101,120,97,105,114,46,
-    115,97,109,112,108,101,116,101,120,116,117,114,101,50,100,60,102,108,111,97,116,44,32,115,97,109,112,108,101,62,115,84,101,120,116,117,114,101,97,105,114,46,115,97,109,112,108,101,
-    114,115,97,109,112,108,101,114,115,84,101,120,116,117,114,101,83,109,112,108,114,0,6,95,0,0,0,0,0,0,48,130,208,8,35,8,18,51,130,208,12,35,8,13,49,130,208,20,35,8,141,49,130,208,28,
-    35,8,13,50,130,208,36,35,8,141,50,130,208,44,35,8,9,48,195,64,6,65,25,204,48,152,129,112,6,51,12,104,48,144,193,12,3,26,16,105,48,195,128,6,69,26,204,48,160,129,145,6,51,12,104,112,
-    168,193,12,3,26,32,107,48,195,128,6,9,27,204,16,40,51,12,100,128,6,109,48,3,177,184,1,25,180,193,12,1,51,67,208,204,16,56,51,28,79,27,180,1,20,73,211,12,193,31,204,144,180,1,85,89,
-    23,20,73,216,12,137,25,80,153,117,65,154,180,205,160,144,1,215,181,129,25,120,208,39,129,193,12,137,27,132,65,215,6,102,0,137,129,52,6,51,16,161,32,10,163,64,10,51,12,111,0,10,165,
-    112,99,0,112,28,199,113,28,199,113,28,199,185,129,27,184,129,27,184,129,27,184,129,27,184,129,69,7,122,96,89,150,41,112,172,192,10,228,160,14,160,32,35,129,9,202,136,141,205,174,205,
-    165,237,141,172,142,173,204,197,140,45,236,108,110,148,228,13,224,32,14,228,96,14,232,160,14,236,224,14,82,97,99,179,107,115,73,35,43,115,163,27,37,192,131,92,194,210,228,92,236,202,
-    228,230,210,222,220,70,9,242,32,169,176,52,57,23,182,48,183,179,186,176,179,178,47,187,50,185,185,180,55,183,81,2,61,200,41,44,77,206,101,236,173,13,46,141,173,236,235,13,142,46,237,
-    205,109,110,148,97,15,248,160,15,146,9,75,147,115,49,147,11,59,107,43,115,163,27,37,40,5,0,0,0,0,169,24,0,0,37,0,0,0,11,10,114,40,135,119,128,7,122,88,112,152,67,61,184,195,56,176,
-    67,57,208,195,130,230,28,198,161,13,232,65,30,194,193,29,230,33,29,232,33,29,222,193,29,22,52,227,96,14,231,80,15,225,32,15,228,64,15,225,32,15,231,80,14,244,176,128,129,7,121,40,135,
-    112,96,7,118,120,135,113,8,7,122,40,7,114,88,112,156,195,56,180,1,59,164,131,61,148,195,2,107,28,216,33,28,220,225,28,220,32,28,228,97,28,220,32,28,232,129,30,194,97,28,208,161,28,
-    200,97,28,194,129,29,216,97,193,1,15,244,32,15,225,80,15,244,128,14,0,0,0,0,209,16,0,0,6,0,0,0,7,204,60,164,131,59,156,3,59,148,3,61,160,131,60,148,67,56,144,195,1,0,0,0,97,32,0,0,
-    49,0,0,0,19,4,65,44,16,0,0,0,4,0,0,0,196,106,96,4,128,220,8,0,129,17,0,18,51,0,0,0,241,48,0,0,28,0,0,0,34,71,200,144,81,14,196,42,0,0,0,0,23,134,1,0,97,105,114,45,97,108,105,97,115,
-    45,115,99,111,112,101,115,40,109,97,105,110,48,41,97,105,114,45,97,108,105,97,115,45,115,99,111,112,101,45,115,97,109,112,108,101,114,115,97,105,114,45,97,108,105,97,115,45,115,99,
-    111,112,101,45,116,101,120,116,117,114,101,115,0,43,4,85,56,133,21,195,42,168,2,42,172,24,88,65,21,82,97,131,192,10,171,0,0,35,6,205,16,130,96,240,84,135,129,20,3,33,8,204,104,66,0,
-    96,176,136,255,108,3,17,0,27,4,196,0,0,0,2,0,0,0,91,6,224,96,5,0,0,0,0,0,0,0,113,32,0,0,3,0,0,0,50,14,16,34,132,0,248,5,0,0,0,0,0,0,0,0,101,12,0,0,37,0,0,0,18,3,148,40,1,0,0,0,3,0,
-    0,0,32,0,0,0,9,0,0,0,76,0,0,0,1,0,0,0,88,0,0,0,0,0,0,0,88,0,0,0,2,0,0,0,136,0,0,0,0,0,0,0,41,0,0,0,21,0,0,0,0,0,0,0,5,0,0,0,5,0,0,0,0,0,0,0,136,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,
-    0,0,0,0,0,5,0,0,0,0,0,0,0,5,0,0,0,255,255,255,255,0,36,0,0,5,0,0,0,27,0,0,0,5,0,0,0,27,0,0,0,255,255,255,255,8,36,0,0,0,0,0,0,93,12,0,0,19,0,0,0,18,3,148,126,0,0,0,0,109,97,105,110,
-    48,97,105,114,46,115,97,109,112,108,101,95,116,101,120,116,117,114,101,95,50,100,46,118,52,102,51,50,51,50,48,50,51,46,51,54,56,97,105,114,54,52,45,97,112,112,108,101,45,105,111,115,
-    49,56,46,49,46,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-};
-#elif TARGET_IPHONE_SIMULATOR
-#error "SDL_GPU does not support the iphone simulator"
-#endif
-#endif
-
-#endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlrenderer2.cpp

@@ -1,18 +1,15 @@
 // dear imgui: Renderer Backend for SDL_Renderer for SDL2
 // (Requires: SDL 2.0.17+)
 
-// Note that SDL_Renderer is an _optional_ component of SDL2, which IMHO is now largely obsolete.
-// For a multi-platform app consider using other technologies:
-// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API. You will need to update to SDL3.
-// - SDL2+DirectX, SDL2+OpenGL, SDL2+Vulkan: combine SDL with dedicated renderers.
-// If your application wants to render any non trivial amount of graphics other than UI,
-// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
-// and it might be difficult to step out of those boundaries.
+// Note how SDL_Renderer is an _optional_ component of SDL2.
+// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
+// If your application will want to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
+// it might be difficult to step out of those boundaries.
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 // Missing features:
 //  [ ] Renderer: Multi-viewport support (multiple windows).
@@ -26,8 +23,6 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
-//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer2_CreateFontsTexture() and ImGui_ImplSDLRenderer2_DestroyFontsTexture().
-//  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
 //  2024-10-09: Expose selected render state in ImGui_ImplSDLRenderer2_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
 //  2024-05-14: *BREAKING CHANGE* ImGui_ImplSDLRenderer3_RenderDrawData() requires SDL_Renderer* passed as parameter.
 //  2023-05-30: Renamed imgui_impl_sdlrenderer.h/.cpp to imgui_impl_sdlrenderer2.h/.cpp to accommodate for upcoming SDL3.
@@ -46,8 +41,6 @@
 #if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
-#elif defined(__GNUC__)
-#pragma GCC diagnostic ignored "-Wfloat-equal"                      // warning: comparing floating-point with '==' or '!=' is unsafe
 #endif
 
 // SDL
@@ -60,7 +53,7 @@
 struct ImGui_ImplSDLRenderer2_Data
 {
     SDL_Renderer*   Renderer;       // Main viewport's renderer
-
+    SDL_Texture*    FontTexture;
     ImGui_ImplSDLRenderer2_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
 
@@ -84,7 +77,6 @@ bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_sdlrenderer2";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
     bd->Renderer = renderer;
 
@@ -101,49 +93,44 @@ void ImGui_ImplSDLRenderer2_Shutdown()
 
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
     IM_DELETE(bd);
 }
 
 static void ImGui_ImplSDLRenderer2_SetupRenderState(SDL_Renderer* renderer)
 {
-    // Clear out any viewports and cliprect set by the user
+	// Clear out any viewports and cliprect set by the user
     // FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
-    SDL_RenderSetViewport(renderer, nullptr);
-    SDL_RenderSetClipRect(renderer, nullptr);
+	SDL_RenderSetViewport(renderer, nullptr);
+	SDL_RenderSetClipRect(renderer, nullptr);
 }
 
 void ImGui_ImplSDLRenderer2_NewFrame()
 {
     ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer2_Init()?");
-    IM_UNUSED(bd);
+
+    if (!bd->FontTexture)
+        ImGui_ImplSDLRenderer2_CreateDeviceObjects();
 }
 
 void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
 {
-    // If there's a scale factor set by the user, use that instead
+	// If there's a scale factor set by the user, use that instead
     // If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
     // to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
     float rsx = 1.0f;
-    float rsy = 1.0f;
-    SDL_RenderGetScale(renderer, &rsx, &rsy);
+	float rsy = 1.0f;
+	SDL_RenderGetScale(renderer, &rsx, &rsy);
     ImVec2 render_scale;
-    render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
-    render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
+	render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
+	render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
 
-    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
-    int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
-    if (fb_width == 0 || fb_height == 0)
-        return;
-
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplSDLRenderer2_UpdateTexture(tex);
+	// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+	int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
+	int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
+	if (fb_width == 0 || fb_height == 0)
+		return;
 
     // Backup SDL_Renderer state that will be modified to restore it afterwards
     struct BackupSDLRendererState
@@ -166,13 +153,14 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
     render_state.Renderer = renderer;
     platform_io.Renderer_RenderState = &render_state;
 
-    // Will project scissor/clipping rectangles into framebuffer space
-    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
-    ImVec2 clip_scale = render_scale;
+	// Will project scissor/clipping rectangles into framebuffer space
+	ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+	ImVec2 clip_scale = render_scale;
 
     // Render command lists
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
         const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
 
@@ -212,7 +200,7 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
 #endif
 
                 // Bind texture, Draw
-                SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
+				SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
                 SDL_RenderGeometryRaw(renderer, tex,
                     xy, (int)sizeof(ImDrawVert),
                     color, (int)sizeof(ImDrawVert),
@@ -222,74 +210,62 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
             }
         }
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = NULL;
 
     // Restore modified SDL_Renderer state
     SDL_RenderSetViewport(renderer, &old.Viewport);
     SDL_RenderSetClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
 }
 
-void ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex)
+// Called by Init/NewFrame/Shutdown
+bool ImGui_ImplSDLRenderer2_CreateFontsTexture()
 {
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
 
-    if (tex->Status == ImTextureStatus_WantCreate)
+    // Build texture atlas
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
+
+    // Upload texture to graphics system
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    bd->FontTexture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
+    if (bd->FontTexture == nullptr)
     {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // Create texture
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-        SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
-        IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
-        SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());
-        SDL_SetTextureBlendMode(sdl_texture, SDL_BLENDMODE_BLEND);
-        SDL_SetTextureScaleMode(sdl_texture, SDL_ScaleModeLinear);
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)sdl_texture);
-        tex->SetStatus(ImTextureStatus_OK);
+        SDL_Log("error creating texture");
+        return false;
     }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
-        for (ImTextureRect& r : tex->Updates)
-        {
-            SDL_Rect sdl_r = { r.x, r.y, r.w, r.h };
-            SDL_UpdateTexture(sdl_texture, &sdl_r, tex->GetPixelsAt(r.x, r.y), tex->GetPitch());
-        }
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy)
-    {
-        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
-        if (sdl_texture == nullptr)
-            return;
-        SDL_DestroyTexture(sdl_texture);
+    SDL_UpdateTexture(bd->FontTexture, nullptr, pixels, 4 * width);
+    SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
+    SDL_SetTextureScaleMode(bd->FontTexture, SDL_ScaleModeLinear);
 
-        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer2_DestroyFontsTexture()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
+    if (bd->FontTexture)
+    {
+        io.Fonts->SetTexID(0);
+        SDL_DestroyTexture(bd->FontTexture);
+        bd->FontTexture = nullptr;
     }
 }
 
-void ImGui_ImplSDLRenderer2_CreateDeviceObjects()
+bool ImGui_ImplSDLRenderer2_CreateDeviceObjects()
 {
+    return ImGui_ImplSDLRenderer2_CreateFontsTexture();
 }
 
 void ImGui_ImplSDLRenderer2_DestroyDeviceObjects()
 {
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-        {
-            tex->SetStatus(ImTextureStatus_WantDestroy);
-            ImGui_ImplSDLRenderer2_UpdateTexture(tex);
-        }
+    ImGui_ImplSDLRenderer2_DestroyFontsTexture();
 }
 
 //-----------------------------------------------------------------------------

backends/imgui_impl_sdlrenderer2.h

@@ -1,18 +1,15 @@
 // dear imgui: Renderer Backend for SDL_Renderer for SDL2
 // (Requires: SDL 2.0.17+)
 
-// Note that SDL_Renderer is an _optional_ component of SDL2, which IMHO is now largely obsolete.
-// For a multi-platform app consider using other technologies:
-// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API. You will need to update to SDL3.
-// - SDL2+DirectX, SDL2+OpenGL, SDL2+Vulkan: combine SDL with dedicated renderers.
-// If your application wants to render any non trivial amount of graphics other than UI,
-// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
-// and it might be difficult to step out of those boundaries.
+// Note how SDL_Renderer is an _optional_ component of SDL2.
+// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
+// If your application will want to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
+// it might be difficult to step out of those boundaries.
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 // Missing features:
 //  [ ] Renderer: Multi-viewport support (multiple windows).
@@ -38,12 +35,11 @@ IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_NewFrame();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer);
 
 // Called by Init/NewFrame/Shutdown
-IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_CreateDeviceObjects();
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer2_CreateFontsTexture();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_DestroyFontsTexture();
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer2_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplSDLRenderer2_UpdateTexture(ImTextureData* tex);
-
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLRenderer2_RenderDrawData() call.
 // (Please open an issue if you feel you need access to more data)

backends/imgui_impl_sdlrenderer3.cpp

@@ -1,21 +1,21 @@
 // dear imgui: Renderer Backend for SDL_Renderer for SDL3
-// (Requires: SDL 3.1.8+)
+// (Requires: SDL 3.0.0+)
 
-// Note that SDL_Renderer is an _optional_ component of SDL3, which IMHO is now largely obsolete.
-// For a multi-platform app consider using other technologies:
-// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API.
-// - SDL3+DirectX, SDL3+OpenGL, SDL3+Vulkan: combine SDL with dedicated renderers.
-// If your application wants to render any non trivial amount of graphics other than UI,
-// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
-// and it might be difficult to step out of those boundaries.
+// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
+
+// Note how SDL_Renderer is an _optional_ component of SDL3.
+// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
+// If your application will want to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
+// it might be difficult to step out of those boundaries.
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-// Missing features:
-//  [ ] Renderer: Multi-viewport support (multiple windows).
+//  [X] Renderer: Multi-viewport support (multiple windows).
+//    FIXME: Missing way to share textures betweens renderers: https://github.com/libsdl-org/SDL/issues/6742
+//    FIXME: Missing way to specify a projection matrix, so our vertices in absolute coordinates are not displayed correctly in multi-viewports mode.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -26,8 +26,7 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
-//  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer3_CreateFontsTexture() and ImGui_ImplSDLRenderer3_DestroyFontsTexture().
-//  2025-01-18: Use endian-dependent RGBA32 texture format, to match SDL_Color.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface. (#5835)
 //  2024-10-09: Expose selected render state in ImGui_ImplSDLRenderer3_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
 //  2024-07-01: Update for SDL3 api changes: SDL_RenderGeometryRaw() uint32 version was removed (SDL#9009).
 //  2024-05-14: *BREAKING CHANGE* ImGui_ImplSDLRenderer3_RenderDrawData() requires SDL_Renderer* passed as parameter.
@@ -43,8 +42,6 @@
 #if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
-#elif defined(__GNUC__)
-#pragma GCC diagnostic ignored "-Wfloat-equal"          // warning: comparing floating-point with '==' or '!=' is unsafe
 #endif
 
 // SDL
@@ -57,7 +54,9 @@
 struct ImGui_ImplSDLRenderer3_Data
 {
     SDL_Renderer*           Renderer;       // Main viewport's renderer
-    ImVector<SDL_FColor>    ColorBuffer;
+    SDL_Texture*            FontTexture;
+    ImVector<SDL_FColor>    ColorBuffer;    // Transformed color buffer
+    ImVector<ImVec2>        PosBuffer;      // Transformed pos buffer (for multi-viewports only)
 
     ImGui_ImplSDLRenderer3_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
@@ -69,6 +68,10 @@ static ImGui_ImplSDLRenderer3_Data* ImGui_ImplSDLRenderer3_GetBackendData()
     return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
 }
 
+// Forward Declarations
+static void ImGui_ImplSDLRenderer3_InitMultiViewportSupport();
+static void ImGui_ImplSDLRenderer3_ShutdownMultiViewportSupport();
+
 // Functions
 bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
 {
@@ -82,10 +85,12 @@ bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
     io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_sdlrenderer3";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports;  // We can create multi-viewports on the Renderer side (optional)
 
     bd->Renderer = renderer;
 
+    ImGui_ImplSDLRenderer3_InitMultiViewportSupport();
+
     return true;
 }
 
@@ -95,27 +100,30 @@ void ImGui_ImplSDLRenderer3_Shutdown()
     IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
     ImGuiIO& io = ImGui::GetIO();
 
+    ImGui_ImplSDLRenderer3_ShutdownMultiViewportSupport();
     ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
 
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports);
     IM_DELETE(bd);
 }
 
 static void ImGui_ImplSDLRenderer3_SetupRenderState(SDL_Renderer* renderer)
 {
-    // Clear out any viewports and cliprect set by the user
+	// Clear out any viewports and cliprect set by the user
     // FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
-    SDL_SetRenderViewport(renderer, nullptr);
-    SDL_SetRenderClipRect(renderer, nullptr);
+	SDL_SetRenderViewport(renderer, nullptr);
+	SDL_SetRenderClipRect(renderer, nullptr);
 }
 
 void ImGui_ImplSDLRenderer3_NewFrame()
 {
     ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
     IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer3_Init()?");
-    IM_UNUSED(bd);
+
+    if (!bd->FontTexture)
+        ImGui_ImplSDLRenderer3_CreateDeviceObjects();
 }
 
 // https://github.com/libsdl-org/SDL/issues/9009
@@ -140,28 +148,21 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
 {
     ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
 
-    // If there's a scale factor set by the user, use that instead
+	// If there's a scale factor set by the user, use that instead
     // If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
     // to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
     float rsx = 1.0f;
-    float rsy = 1.0f;
-    SDL_GetRenderScale(renderer, &rsx, &rsy);
+	float rsy = 1.0f;
+	SDL_GetRenderScale(renderer, &rsx, &rsy);
     ImVec2 render_scale;
-    render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
-    render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
+	render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
+	render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
 
-    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
-    int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
-    if (fb_width == 0 || fb_height == 0)
-        return;
-
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplSDLRenderer3_UpdateTexture(tex);
+	// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+	int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
+	int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
+	if (fb_width == 0 || fb_height == 0)
+		return;
 
     // Backup SDL_Renderer state that will be modified to restore it afterwards
     struct BackupSDLRendererState
@@ -186,13 +187,14 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
     render_state.Renderer = renderer;
     platform_io.Renderer_RenderState = &render_state;
 
-    // Will project scissor/clipping rectangles into framebuffer space
-    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
-    ImVec2 clip_scale = render_scale;
+	// Will project scissor/clipping rectangles into framebuffer space
+	ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+	ImVec2 clip_scale = render_scale;
 
     // Render command lists
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         const ImDrawVert* vtx_buffer = draw_list->VtxBuffer.Data;
         const ImDrawIdx* idx_buffer = draw_list->IdxBuffer.Data;
 
@@ -224,13 +226,32 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
                 SDL_SetRenderClipRect(renderer, &r);
 
                 const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, pos));
+                int xy_stride = (int)sizeof(ImDrawVert);
                 const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, uv));
                 const SDL_Color* color = (const SDL_Color*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.19+
 
+                // FIXME-OPT: Transform position manually
+                // FIXME-OPT: Note that SDL_RenderGeometryRaw() does another transform for colors..
+                if (draw_data->DisplayPos.x != 0.0f || draw_data->DisplayPos.y != 0.0f)
+                {
+                    const float off_x = draw_data->DisplayPos.x;
+                    const float off_y = draw_data->DisplayPos.y;
+                    bd->PosBuffer.resize(pcmd->ElemCount);
+                    const ImDrawVert* p_in = vtx_buffer + pcmd->VtxOffset;
+                    ImVec2* p_out = bd->PosBuffer.Data;
+                    for (int remaining = pcmd->ElemCount; remaining > 0; remaining--, p_out++, p_in++)
+                    {
+                        p_out->x = p_in->pos.x - off_x;
+                        p_out->y = p_in->pos.y - off_y;
+                    }
+                    xy = (const float*)bd->PosBuffer.Data;
+                    xy_stride = (int)sizeof(ImVec2);
+                }
+
                 // Bind texture, Draw
-                SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
+				SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
                 SDL_RenderGeometryRaw8BitColor(renderer, bd->ColorBuffer, tex,
-                    xy, (int)sizeof(ImDrawVert),
+                    xy, xy_stride,
                     color, (int)sizeof(ImDrawVert),
                     uv, (int)sizeof(ImDrawVert),
                     draw_list->VtxBuffer.Size - pcmd->VtxOffset,
@@ -238,74 +259,134 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
             }
         }
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = NULL;
 
     // Restore modified SDL_Renderer state
     SDL_SetRenderViewport(renderer, old.ViewportEnabled ? &old.Viewport : nullptr);
     SDL_SetRenderClipRect(renderer, old.ClipEnabled ? &old.ClipRect : nullptr);
 }
 
-void ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex)
+// Called by Init/NewFrame/Shutdown
+bool ImGui_ImplSDLRenderer3_CreateFontsTexture()
 {
+    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
 
-    if (tex->Status == ImTextureStatus_WantCreate)
+    // Build texture atlas
+    unsigned char* pixels;
+    int width, height;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
+
+    // Upload texture to graphics system
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    bd->FontTexture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
+    if (bd->FontTexture == nullptr)
     {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // Create texture
-        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-        SDL_Texture* sdl_texture = SDL_CreateTexture(bd->Renderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, tex->Width, tex->Height);
-        IM_ASSERT(sdl_texture != nullptr && "Backend failed to create texture!");
-        SDL_UpdateTexture(sdl_texture, nullptr, tex->GetPixels(), tex->GetPitch());
-        SDL_SetTextureBlendMode(sdl_texture, SDL_BLENDMODE_BLEND);
-        SDL_SetTextureScaleMode(sdl_texture, SDL_SCALEMODE_LINEAR);
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)sdl_texture);
-        tex->SetStatus(ImTextureStatus_OK);
+        SDL_Log("error creating texture");
+        return false;
     }
-    else if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Update selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
-        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
-        for (ImTextureRect& r : tex->Updates)
-        {
-            SDL_Rect sdl_r = { r.x, r.y, r.w, r.h };
-            SDL_UpdateTexture(sdl_texture, &sdl_r, tex->GetPixelsAt(r.x, r.y), tex->GetPitch());
-        }
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    else if (tex->Status == ImTextureStatus_WantDestroy)
-    {
-        SDL_Texture* sdl_texture = (SDL_Texture*)(intptr_t)tex->TexID;
-        if (sdl_texture == nullptr)
-            return;
-        SDL_DestroyTexture(sdl_texture);
+    SDL_UpdateTexture(bd->FontTexture, nullptr, pixels, 4 * width);
+    SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
+    SDL_SetTextureScaleMode(bd->FontTexture, SDL_SCALEMODE_LINEAR);
 
-        // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
+    // Store our identifier
+    io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer3_DestroyFontsTexture()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+    if (bd->FontTexture)
+    {
+        io.Fonts->SetTexID(0);
+        SDL_DestroyTexture(bd->FontTexture);
+        bd->FontTexture = nullptr;
     }
 }
 
-void ImGui_ImplSDLRenderer3_CreateDeviceObjects()
+bool ImGui_ImplSDLRenderer3_CreateDeviceObjects()
 {
+    return ImGui_ImplSDLRenderer3_CreateFontsTexture();
 }
 
 void ImGui_ImplSDLRenderer3_DestroyDeviceObjects()
 {
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-        {
-            tex->SetStatus(ImTextureStatus_WantDestroy);
-            ImGui_ImplSDLRenderer3_UpdateTexture(tex);
-        }
+    ImGui_ImplSDLRenderer3_DestroyFontsTexture();
+}
+
+//--------------------------------------------------------------------------------------------------------
+// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
+// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
+// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
+//--------------------------------------------------------------------------------------------------------
+
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
+struct ImGui_ImplSDLRenderer3_ViewportData
+{
+    SDL_Renderer*                   Renderer;
+
+    ImGui_ImplSDLRenderer3_ViewportData()   { Renderer = nullptr; }
+    ~ImGui_ImplSDLRenderer3_ViewportData()  { IM_ASSERT(Renderer == nullptr); }
+};
+
+static void ImGui_ImplSDLRenderer3_CreateWindow(ImGuiViewport* viewport)
+{
+    //ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+    ImGui_ImplSDLRenderer3_ViewportData* vd = IM_NEW(ImGui_ImplSDLRenderer3_ViewportData)();
+    viewport->RendererUserData = vd;
+
+    SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
+    SDL_Window* window = SDL_GetWindowFromID(window_id);
+    vd->Renderer = SDL_CreateRenderer(window, nullptr);
+    SDL_SetRenderVSync(vd->Renderer, 0);
+    IM_ASSERT(vd->Renderer != NULL);
+}
+
+static void ImGui_ImplSDLRenderer3_DestroyWindow(ImGuiViewport* viewport)
+{
+    // The main viewport (owned by the application) will always have RendererUserData == nullptr since we didn't create the data for it.
+    if (ImGui_ImplSDLRenderer3_ViewportData* vd = (ImGui_ImplSDLRenderer3_ViewportData*)viewport->RendererUserData)
+    {
+        SDL_DestroyRenderer(vd->Renderer);
+        vd->Renderer = nullptr;
+        IM_DELETE(vd);
+    }
+    viewport->RendererUserData = nullptr;
+}
+
+static void ImGui_ImplSDLRenderer3_RenderWindow(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplSDLRenderer3_ViewportData* vd = (ImGui_ImplSDLRenderer3_ViewportData*)viewport->RendererUserData;
+    if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
+    {
+        ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
+        SDL_SetRenderDrawColor(vd->Renderer, (Uint8)(clear_color.x * 255), (Uint8)(clear_color.y * 255), (Uint8)(clear_color.z * 255), (Uint8)(clear_color.w * 255));
+        SDL_RenderClear(vd->Renderer);
+    }
+    ImGui_ImplSDLRenderer3_RenderDrawData(viewport->DrawData, vd->Renderer);
+}
+
+static void ImGui_ImplSDLRenderer3_SwapBuffers(ImGuiViewport* viewport, void*)
+{
+    ImGui_ImplSDLRenderer3_ViewportData* vd = (ImGui_ImplSDLRenderer3_ViewportData*)viewport->RendererUserData;
+    SDL_RenderPresent(vd->Renderer);
+}
+
+static void ImGui_ImplSDLRenderer3_InitMultiViewportSupport()
+{
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_CreateWindow = ImGui_ImplSDLRenderer3_CreateWindow;
+    platform_io.Renderer_DestroyWindow = ImGui_ImplSDLRenderer3_DestroyWindow;
+    platform_io.Renderer_RenderWindow = ImGui_ImplSDLRenderer3_RenderWindow;
+    platform_io.Renderer_SwapBuffers = ImGui_ImplSDLRenderer3_SwapBuffers;
+}
+
+static void ImGui_ImplSDLRenderer3_ShutdownMultiViewportSupport()
+{
+    ImGui::DestroyPlatformWindows();
 }
 
 //-----------------------------------------------------------------------------

backends/imgui_impl_sdlrenderer3.h

@@ -1,21 +1,21 @@
 // dear imgui: Renderer Backend for SDL_Renderer for SDL3
-// (Requires: SDL 3.1.8+)
+// (Requires: SDL 3.0.0+)
 
-// Note that SDL_Renderer is an _optional_ component of SDL3, which IMHO is now largely obsolete.
-// For a multi-platform app consider using other technologies:
-// - SDL3+SDL_GPU: SDL_GPU is SDL3 new graphics abstraction API.
-// - SDL3+DirectX, SDL3+OpenGL, SDL3+Vulkan: combine SDL with dedicated renderers.
-// If your application wants to render any non trivial amount of graphics other than UI,
-// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user
-// and it might be difficult to step out of those boundaries.
+// (**IMPORTANT: SDL 3.0.0 is NOT YET RELEASED AND CURRENTLY HAS A FAST CHANGING API. THIS CODE BREAKS OFTEN AS SDL3 CHANGES.**)
+
+// Note how SDL_Renderer is an _optional_ component of SDL3.
+// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
+// If your application will want to render any non trivial amount of graphics other than UI,
+// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
+// it might be difficult to step out of those boundaries.
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-// Missing features:
-//  [ ] Renderer: Multi-viewport support (multiple windows).
+//  [X] Renderer: Multi-viewport support (multiple windows).
+//    FIXME: Missing way to share textures betweens renderers: https://github.com/libsdl-org/SDL/issues/6742
+//    FIXME: Missing way to specify a projection matrix, so our vertices in absolute coordinates are not displayed correctly in multi-viewports mode.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -38,12 +38,11 @@ IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_NewFrame();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer);
 
 // Called by Init/NewFrame/Shutdown
-IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_CreateDeviceObjects();
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer3_CreateFontsTexture();
+IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_DestroyFontsTexture();
+IMGUI_IMPL_API bool     ImGui_ImplSDLRenderer3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void     ImGui_ImplSDLRenderer3_UpdateTexture(ImTextureData* tex);
-
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplSDLRenderer3_RenderDrawData() call.
 // (Please open an issue if you feel you need access to more data)

backends/imgui_impl_vulkan.h

@@ -2,9 +2,8 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [!] Renderer: User texture binding. Use 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+//  [x] Renderer: User texture binding. Use 'VkDescriptorSet' as ImTextureID. Read the FAQ about ImTextureID! See https://github.com/ocornut/imgui/pull/914 for discussions.
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 //  [x] Renderer: Multi-viewport / platform windows. With issues (flickering when creating a new viewport).
 
@@ -63,47 +62,47 @@
 #define IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
 #endif
 
-// Backend uses a small number of descriptors per font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
-#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE   (8)     // Minimum per atlas
-
 // Initialization data, for ImGui_ImplVulkan_Init()
 // [Please zero-clear before use!]
 // - About descriptor pool:
 //   - A VkDescriptorPool should be created with VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
 //     and must contain a pool size large enough to hold a small number of VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptors.
 //   - As an convenience, by setting DescriptorPoolSize > 0 the backend will create one for you.
+//   - Current version of the backend use 1 descriptor for the font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
+//   - It is expected that as early as Q1 2025 the backend will use a few more descriptors, so aim at 10 + number of desierd calls to ImGui_ImplVulkan_AddTexture().
 // - About dynamic rendering:
 //   - When using dynamic rendering, set UseDynamicRendering=true and fill PipelineRenderingCreateInfo structure.
 struct ImGui_ImplVulkan_InitInfo
 {
-    uint32_t                        ApiVersion;                 // Fill with API version of Instance, e.g. VK_API_VERSION_1_3 or your value of VkApplicationInfo::apiVersion. May be lower than header version (VK_HEADER_VERSION_COMPLETE)
     VkInstance                      Instance;
     VkPhysicalDevice                PhysicalDevice;
     VkDevice                        Device;
     uint32_t                        QueueFamily;
     VkQueue                         Queue;
-    VkDescriptorPool                DescriptorPool;             // See requirements in note above; ignored if using DescriptorPoolSize > 0
-    uint32_t                        DescriptorPoolSize;         // Optional: set to create internal descriptor pool automatically instead of using DescriptorPool.
-    uint32_t                        MinImageCount;              // >= 2
-    uint32_t                        ImageCount;                 // >= MinImageCount
-    VkPipelineCache                 PipelineCache;              // Optional
+    VkDescriptorPool                DescriptorPool;               // See requirements in note above; ignored if using DescriptorPoolSize > 0
+    VkRenderPass                    RenderPass;                   // Ignored if using dynamic rendering
+    uint32_t                        MinImageCount;                // >= 2
+    uint32_t                        ImageCount;                   // >= MinImageCount
+    VkSampleCountFlagBits           MSAASamples;                  // 0 defaults to VK_SAMPLE_COUNT_1_BIT
 
-    // Pipeline
-    VkRenderPass                    RenderPass;                 // Ignored if using dynamic rendering
+    // (Optional)
+    VkPipelineCache                 PipelineCache;
     uint32_t                        Subpass;
-    VkSampleCountFlagBits           MSAASamples;                // 0 defaults to VK_SAMPLE_COUNT_1_BIT
+
+    // (Optional) Set to create internal descriptor pool instead of using DescriptorPool
+    uint32_t                        DescriptorPoolSize;
 
     // (Optional) Dynamic Rendering
-    // Need to explicitly enable VK_KHR_dynamic_rendering extension to use this, even for Vulkan 1.3 + setup PipelineRenderingCreateInfo.
+    // Need to explicitly enable VK_KHR_dynamic_rendering extension to use this, even for Vulkan 1.3.
     bool                            UseDynamicRendering;
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
-    VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;   // Optional, valid if .sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR
+    VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;
 #endif
 
     // (Optional) Allocation, Debugging
     const VkAllocationCallbacks*    Allocator;
     void                            (*CheckVkResultFn)(VkResult err);
-    VkDeviceSize                    MinAllocationSize;              // Minimum allocation size. Set to 1024*1024 to satisfy zealous best practices validation layer and waste a little memory.
+    VkDeviceSize                    MinAllocationSize;      // Minimum allocation size. Set to 1024*1024 to satisfy zealous best practices validation layer and waste a little memory.
 };
 
 // Follow "Getting Started" link and check examples/ folder to learn about using backends!
@@ -111,25 +110,10 @@ IMGUI_IMPL_API bool             ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo*
 IMGUI_IMPL_API void             ImGui_ImplVulkan_Shutdown();
 IMGUI_IMPL_API void             ImGui_ImplVulkan_NewFrame();
 IMGUI_IMPL_API void             ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline = VK_NULL_HANDLE);
+IMGUI_IMPL_API bool             ImGui_ImplVulkan_CreateFontsTexture();
+IMGUI_IMPL_API void             ImGui_ImplVulkan_DestroyFontsTexture();
 IMGUI_IMPL_API void             ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count); // To override MinImageCount after initialization (e.g. if swap chain is recreated)
 
-// (Advanced) Use e.g. if you need to recreate pipeline without reinitializing the backend (see #8110, #8111)
-// The main window pipeline will be created by ImGui_ImplVulkan_Init() if possible (== RenderPass xor (UseDynamicRendering && PipelineRenderingCreateInfo->sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR))
-// Else, the pipeline can be created, or re-created, using ImGui_ImplVulkan_CreateMainPipeline() before rendering.
-struct ImGui_ImplVulkan_MainPipelineCreateInfo
-{
-    VkRenderPass                RenderPass = VK_NULL_HANDLE;
-    uint32_t                    Subpass = 0;
-    VkSampleCountFlagBits       MSAASamples = {};
-#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
-    VkPipelineRenderingCreateInfoKHR PipelineRenderingCreateInfo;   // Optional, valid if .sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR
-#endif
-};
-IMGUI_IMPL_API void             ImGui_ImplVulkan_CreateMainPipeline(const ImGui_ImplVulkan_MainPipelineCreateInfo& info); // (render_pass xor (p_dynamic_rendering && p_dynamic_rendering is correct (sType and pNext))
-
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void             ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex);
-
 // Register a texture (VkDescriptorSet == ImTextureID)
 // FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem
 // Please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
@@ -138,7 +122,7 @@ IMGUI_IMPL_API void             ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet d
 
 // Optional: load Vulkan functions with a custom function loader
 // This is only useful with IMGUI_IMPL_VULKAN_NO_PROTOTYPES / VK_NO_PROTOTYPES
-IMGUI_IMPL_API bool             ImGui_ImplVulkan_LoadFunctions(uint32_t api_version, PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data = nullptr);
+IMGUI_IMPL_API bool             ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data = nullptr);
 
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplVulkan_RenderDrawData() call.
@@ -152,24 +136,18 @@ struct ImGui_ImplVulkan_RenderState
 
 //-------------------------------------------------------------------------
 // Internal / Miscellaneous Vulkan Helpers
+// (Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.)
 //-------------------------------------------------------------------------
-// Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.
-//
 // You probably do NOT need to use or care about those functions.
 // Those functions only exist because:
 //   1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
 //   2) the multi-viewport / platform window implementation needs them internally.
-// Generally we avoid exposing any kind of superfluous high-level helpers in the backends,
+// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
 // but it is too much code to duplicate everywhere so we exceptionally expose them.
 //
-// Your engine/app will likely _already_ have code to setup all that stuff (swap chain,
-// render pass, frame buffers, etc.). You may read this code if you are curious, but
-// it is recommended you use you own custom tailored code to do equivalent work.
-//
-// We don't provide a strong guarantee that we won't change those functions API.
-//
-// The ImGui_ImplVulkanH_XXX functions should NOT interact with any of the state used
-// by the regular ImGui_ImplVulkan_XXX functions).
+// Your engine/app will likely _already_ have code to setup all that stuff (swap chain, render pass, frame buffers, etc.).
+// You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
+// (The ImGui_ImplVulkanH_XXX functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
 //-------------------------------------------------------------------------
 
 struct ImGui_ImplVulkanH_Frame;
@@ -180,8 +158,6 @@ IMGUI_IMPL_API void                 ImGui_ImplVulkanH_CreateOrResizeWindow(VkIns
 IMGUI_IMPL_API void                 ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator);
 IMGUI_IMPL_API VkSurfaceFormatKHR   ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space);
 IMGUI_IMPL_API VkPresentModeKHR     ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
-IMGUI_IMPL_API VkPhysicalDevice     ImGui_ImplVulkanH_SelectPhysicalDevice(VkInstance instance);
-IMGUI_IMPL_API uint32_t             ImGui_ImplVulkanH_SelectQueueFamilyIndex(VkPhysicalDevice physical_device);
 IMGUI_IMPL_API int                  ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
 
 // Helper structure to hold the data needed by one rendering frame
@@ -221,8 +197,8 @@ struct ImGui_ImplVulkanH_Window
     uint32_t            ImageCount;             // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
     uint32_t            SemaphoreCount;         // Number of simultaneous in-flight frames + 1, to be able to use it in vkAcquireNextImageKHR
     uint32_t            SemaphoreIndex;         // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
-    ImVector<ImGui_ImplVulkanH_Frame>           Frames;
-    ImVector<ImGui_ImplVulkanH_FrameSemaphores> FrameSemaphores;
+    ImGui_ImplVulkanH_Frame*            Frames;
+    ImGui_ImplVulkanH_FrameSemaphores*  FrameSemaphores;
 
     ImGui_ImplVulkanH_Window()
     {

backends/imgui_impl_wgpu.cpp

@@ -3,12 +3,11 @@
 // (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-//  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
-// Missing features or Issues:
-//  [ ] Renderer: Multi-viewport support (multiple windows), useful for desktop.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows). Not meaningful on the web.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -20,8 +19,6 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-06-12: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. (#8465)
-//  2025-02-26: Recreate image bind groups during render. (#8426, #8046, #7765, #8027) + Update for latest webgpu-native changes.
 //  2024-10-14: Update Dawn support for change of string usages. (#8082, #8083)
 //  2024-10-07: Expose selected render state in ImGui_ImplWGPU_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks.
 //  2024-10-07: Changed default texture sampler to Clamp instead of Repeat/Wrap.
@@ -45,8 +42,6 @@
 //  2021-02-18: Change blending equation to preserve alpha in output buffer.
 //  2021-01-28: Initial version.
 
-#include "imgui.h"
-
 // When targeting native platforms (i.e. NOT emscripten), one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN
 // or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided. See imgui_impl_wgpu.h for more details.
 #ifndef __EMSCRIPTEN__
@@ -59,34 +54,26 @@
     #endif
 #endif
 
+#include "imgui.h"
 #ifndef IMGUI_DISABLE
 #include "imgui_impl_wgpu.h"
 #include <limits.h>
 #include <webgpu/webgpu.h>
 
-#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
-// Dawn renamed WGPUProgrammableStageDescriptor to WGPUComputeState (see: https://github.com/webgpu-native/webgpu-headers/pull/413)
-// Using type alias until WGPU adopts the same naming convention (#8369)
-using WGPUProgrammableStageDescriptor = WGPUComputeState;
-#endif
-
 // Dear ImGui prototypes from imgui_internal.h
-extern ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed);
+extern ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed = 0);
 #define MEMALIGN(_SIZE,_ALIGN)        (((_SIZE) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1))    // Memory align (copied from IM_ALIGN() macro).
 
 // WebGPU data
-struct ImGui_ImplWGPU_Texture
-{
-    WGPUTexture         Texture = nullptr;
-    WGPUTextureView     TextureView = nullptr;
-};
-
 struct RenderResources
 {
-    WGPUSampler         Sampler = nullptr;              // Sampler for textures
+    WGPUTexture         FontTexture = nullptr;          // Font texture
+    WGPUTextureView     FontTextureView = nullptr;      // Texture view for font texture
+    WGPUSampler         Sampler = nullptr;              // Sampler for the font texture
     WGPUBuffer          Uniforms = nullptr;             // Shader uniforms
     WGPUBindGroup       CommonBindGroup = nullptr;      // Resources bind-group to bind the common resources to pipeline
     ImGuiStorage        ImageBindGroups;                // Resources bind-group to bind the font/image resources to pipeline (this is a key->value map)
+    WGPUBindGroup       ImageBindGroup = nullptr;       // Default font-resource of Dear ImGui
     WGPUBindGroupLayout ImageBindGroupLayout = nullptr; // Cache layout used for the image bind group. Avoids allocating unnecessary JS objects when working with WebASM
 };
 
@@ -240,11 +227,27 @@ static void SafeRelease(WGPUShaderModule& res)
         wgpuShaderModuleRelease(res);
     res = nullptr;
 }
+static void SafeRelease(WGPUTextureView& res)
+{
+    if (res)
+        wgpuTextureViewRelease(res);
+    res = nullptr;
+}
+static void SafeRelease(WGPUTexture& res)
+{
+    if (res)
+        wgpuTextureRelease(res);
+    res = nullptr;
+}
+
 static void SafeRelease(RenderResources& res)
 {
+    SafeRelease(res.FontTexture);
+    SafeRelease(res.FontTextureView);
     SafeRelease(res.Sampler);
     SafeRelease(res.Uniforms);
     SafeRelease(res.CommonBindGroup);
+    SafeRelease(res.ImageBindGroup);
     SafeRelease(res.ImageBindGroupLayout);
 };
 
@@ -260,14 +263,14 @@ static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const c
 {
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
 
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-    WGPUShaderSourceWGSL wgsl_desc = {};
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+	WGPUShaderSourceWGSL wgsl_desc = {};
     wgsl_desc.chain.sType = WGPUSType_ShaderSourceWGSL;
-    wgsl_desc.code = { wgsl_source, WGPU_STRLEN };
+	wgsl_desc.code = { wgsl_source, WGPU_STRLEN };
 #else
-    WGPUShaderModuleWGSLDescriptor wgsl_desc = {};
+	WGPUShaderModuleWGSLDescriptor wgsl_desc = {};
     wgsl_desc.chain.sType = WGPUSType_ShaderModuleWGSLDescriptor;
-    wgsl_desc.code = wgsl_source;
+	wgsl_desc.code = wgsl_source;
 #endif
 
     WGPUShaderModuleDescriptor desc = {};
@@ -275,8 +278,7 @@ static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const c
 
     WGPUProgrammableStageDescriptor stage_desc = {};
     stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
-
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
     stage_desc.entryPoint = { "main", WGPU_STRLEN };
 #else
     stage_desc.entryPoint = "main";
@@ -369,16 +371,9 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     // Avoid rendering when minimized
     int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
     int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
-    if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdLists.Size == 0)
+    if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdListsCount == 0)
         return;
 
-    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                ImGui_ImplWGPU_UpdateTexture(tex);
-
     // FIXME: Assuming that this only gets called once per frame!
     // If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
@@ -400,7 +395,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
         {
             nullptr,
             "Dear ImGui Vertex buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
             WGPU_STRLEN,
 #endif
             WGPUBufferUsage_CopyDst | WGPUBufferUsage_Vertex,
@@ -427,7 +422,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
         {
             nullptr,
             "Dear ImGui Index buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
             WGPU_STRLEN,
 #endif
             WGPUBufferUsage_CopyDst | WGPUBufferUsage_Index,
@@ -444,8 +439,9 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     // Upload vertex/index data into a single contiguous GPU buffer
     ImDrawVert* vtx_dst = (ImDrawVert*)fr->VertexBufferHost;
     ImDrawIdx* idx_dst = (ImDrawIdx*)fr->IndexBufferHost;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert));
         memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx));
         vtx_dst += draw_list->VtxBuffer.Size;
@@ -472,8 +468,9 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     int global_idx_offset = 0;
     ImVec2 clip_scale = draw_data->FramebufferScale;
     ImVec2 clip_off = draw_data->DisplayPos;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    for (int n = 0; n < draw_data->CmdListsCount; n++)
     {
+        const ImDrawList* draw_list = draw_data->CmdLists[n];
         for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
         {
             const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
@@ -490,14 +487,18 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
             {
                 // Bind custom texture
                 ImTextureID tex_id = pcmd->GetTexID();
-                ImGuiID tex_id_hash = ImHashData(&tex_id, sizeof(tex_id), 0);
-                WGPUBindGroup bind_group = (WGPUBindGroup)bd->renderResources.ImageBindGroups.GetVoidPtr(tex_id_hash);
-                if (!bind_group)
+                ImGuiID tex_id_hash = ImHashData(&tex_id, sizeof(tex_id));
+                auto bind_group = bd->renderResources.ImageBindGroups.GetVoidPtr(tex_id_hash);
+                if (bind_group)
                 {
-                    bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bd->renderResources.ImageBindGroupLayout, (WGPUTextureView)tex_id);
-                    bd->renderResources.ImageBindGroups.SetVoidPtr(tex_id_hash, bind_group);
+                    wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, nullptr);
+                }
+                else
+                {
+                    WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bd->renderResources.ImageBindGroupLayout, (WGPUTextureView)tex_id);
+                    bd->renderResources.ImageBindGroups.SetVoidPtr(tex_id_hash, image_bind_group);
+                    wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, image_bind_group, 0, nullptr);
                 }
-                wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, nullptr);
 
                 // Project scissor/clipping rectangles into framebuffer space
                 ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
@@ -519,65 +520,36 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-
-    // Remove all ImageBindGroups
-    ImGuiStorage& image_bind_groups = bd->renderResources.ImageBindGroups;
-    for (int i = 0; i < image_bind_groups.Data.Size; i++)
-    {
-        WGPUBindGroup bind_group = (WGPUBindGroup)image_bind_groups.Data[i].val_p;
-        SafeRelease(bind_group);
-    }
-    image_bind_groups.Data.resize(0);
-
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = NULL;
 }
 
-static void ImGui_ImplWGPU_DestroyTexture(ImTextureData* tex)
-{
-    ImGui_ImplWGPU_Texture* backend_tex = (ImGui_ImplWGPU_Texture*)tex->BackendUserData;
-    if (backend_tex == nullptr)
-        return;
-
-    IM_ASSERT(backend_tex->TextureView == (WGPUTextureView)(intptr_t)tex->TexID);
-    wgpuTextureViewRelease(backend_tex->TextureView);
-    wgpuTextureRelease(backend_tex->Texture);
-    IM_DELETE(backend_tex);
-
-    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
-    tex->SetTexID(ImTextureID_Invalid);
-    tex->SetStatus(ImTextureStatus_Destroyed);
-    tex->BackendUserData = nullptr;
-}
-
-void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
+static void ImGui_ImplWGPU_CreateFontsTexture()
 {
+    // Build texture atlas
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create and upload new texture to graphics system
-        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
-        IM_ASSERT(tex->TexID == ImTextureID_Invalid && tex->BackendUserData == nullptr);
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-        ImGui_ImplWGPU_Texture* backend_tex = IM_NEW(ImGui_ImplWGPU_Texture)();
+    ImGuiIO& io = ImGui::GetIO();
+    unsigned char* pixels;
+    int width, height, size_pp;
+    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &size_pp);
 
-        // Create texture
+    // Upload texture to graphics system
+    {
         WGPUTextureDescriptor tex_desc = {};
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-        tex_desc.label = { "Dear ImGui Texture", WGPU_STRLEN };
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
+        tex_desc.label = { "Dear ImGui Font Texture", WGPU_STRLEN };
 #else
-        tex_desc.label = "Dear ImGui Texture";
+        tex_desc.label = "Dear ImGui Font Texture";
 #endif
         tex_desc.dimension = WGPUTextureDimension_2D;
-        tex_desc.size.width = tex->Width;
-        tex_desc.size.height = tex->Height;
+        tex_desc.size.width = width;
+        tex_desc.size.height = height;
         tex_desc.size.depthOrArrayLayers = 1;
         tex_desc.sampleCount = 1;
         tex_desc.format = WGPUTextureFormat_RGBA8Unorm;
         tex_desc.mipLevelCount = 1;
         tex_desc.usage = WGPUTextureUsage_CopyDst | WGPUTextureUsage_TextureBinding;
-        backend_tex->Texture = wgpuDeviceCreateTexture(bd->wgpuDevice, &tex_desc);
+        bd->renderResources.FontTexture = wgpuDeviceCreateTexture(bd->wgpuDevice, &tex_desc);
 
-        // Create texture view
         WGPUTextureViewDescriptor tex_view_desc = {};
         tex_view_desc.format = WGPUTextureFormat_RGBA8Unorm;
         tex_view_desc.dimension = WGPUTextureViewDimension_2D;
@@ -586,50 +558,41 @@ void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
         tex_view_desc.baseArrayLayer = 0;
         tex_view_desc.arrayLayerCount = 1;
         tex_view_desc.aspect = WGPUTextureAspect_All;
-        backend_tex->TextureView = wgpuTextureCreateView(backend_tex->Texture, &tex_view_desc);
-
-        // Store identifiers
-        tex->SetTexID((ImTextureID)(intptr_t)backend_tex->TextureView);
-        tex->BackendUserData = backend_tex;
-        // We don't set tex->Status to ImTextureStatus_OK to let the code fallthrough below.
+        bd->renderResources.FontTextureView = wgpuTextureCreateView(bd->renderResources.FontTexture, &tex_view_desc);
     }
 
-    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
+    // Upload texture data
     {
-        ImGui_ImplWGPU_Texture* backend_tex = (ImGui_ImplWGPU_Texture*)tex->BackendUserData;
-        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
-
-        // We could use the smaller rect on _WantCreate but using the full rect allows us to clear the texture.
-        const int upload_x = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.x;
-        const int upload_y = (tex->Status == ImTextureStatus_WantCreate) ? 0 : tex->UpdateRect.y;
-        const int upload_w = (tex->Status == ImTextureStatus_WantCreate) ? tex->Width : tex->UpdateRect.w;
-        const int upload_h = (tex->Status == ImTextureStatus_WantCreate) ? tex->Height : tex->UpdateRect.h;
-
-        // Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
-        // This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-        WGPUTexelCopyTextureInfo dst_view = {};
-#else
         WGPUImageCopyTexture dst_view = {};
-#endif
-        dst_view.texture = backend_tex->Texture;
+        dst_view.texture = bd->renderResources.FontTexture;
         dst_view.mipLevel = 0;
-        dst_view.origin = { (uint32_t)upload_x, (uint32_t)upload_y, 0 };
+        dst_view.origin = { 0, 0, 0 };
         dst_view.aspect = WGPUTextureAspect_All;
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
-        WGPUTexelCopyBufferLayout layout = {};
-#else
         WGPUTextureDataLayout layout = {};
-#endif
         layout.offset = 0;
-        layout.bytesPerRow = tex->Width * tex->BytesPerPixel;
-        layout.rowsPerImage = upload_h;
-        WGPUExtent3D write_size = { (uint32_t)upload_w, (uint32_t)upload_h, 1 };
-        wgpuQueueWriteTexture(bd->defaultQueue, &dst_view, tex->GetPixelsAt(upload_x, upload_y), (uint32_t)(tex->Width * upload_h * tex->BytesPerPixel), &layout, &write_size);
-        tex->SetStatus(ImTextureStatus_OK);
+        layout.bytesPerRow = width * size_pp;
+        layout.rowsPerImage = height;
+        WGPUExtent3D size = { (uint32_t)width, (uint32_t)height, 1 };
+        wgpuQueueWriteTexture(bd->defaultQueue, &dst_view, pixels, (uint32_t)(width * size_pp * height), &layout, &size);
     }
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-        ImGui_ImplWGPU_DestroyTexture(tex);
+
+    // Create the associated sampler
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    {
+        WGPUSamplerDescriptor sampler_desc = {};
+        sampler_desc.minFilter = WGPUFilterMode_Linear;
+        sampler_desc.magFilter = WGPUFilterMode_Linear;
+        sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Linear;
+        sampler_desc.addressModeU = WGPUAddressMode_ClampToEdge;
+        sampler_desc.addressModeV = WGPUAddressMode_ClampToEdge;
+        sampler_desc.addressModeW = WGPUAddressMode_ClampToEdge;
+        sampler_desc.maxAnisotropy = 1;
+        bd->renderResources.Sampler = wgpuDeviceCreateSampler(bd->wgpuDevice, &sampler_desc);
+    }
+
+    // Store our identifier
+    static_assert(sizeof(ImTextureID) >= sizeof(bd->renderResources.FontTexture), "Can't pack descriptor handle into TexID, 32-bit not supported yet.");
+    io.Fonts->SetTexID((ImTextureID)bd->renderResources.FontTextureView);
 }
 
 static void ImGui_ImplWGPU_CreateUniformBuffer()
@@ -639,7 +602,7 @@ static void ImGui_ImplWGPU_CreateUniformBuffer()
     {
         nullptr,
         "Dear ImGui Uniform buffer",
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
         WGPU_STRLEN,
 #endif
         WGPUBufferUsage_CopyDst | WGPUBufferUsage_Uniform,
@@ -705,15 +668,9 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
     // Vertex input configuration
     WGPUVertexAttribute attribute_desc[] =
     {
-#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
-        { nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, pos), 0 },
-        { nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, uv),  1 },
-        { nullptr, WGPUVertexFormat_Unorm8x4,  (uint64_t)offsetof(ImDrawVert, col), 2 },
-#else
         { WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, pos), 0 },
         { WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, uv),  1 },
         { WGPUVertexFormat_Unorm8x4,  (uint64_t)offsetof(ImDrawVert, col), 2 },
-#endif
     };
 
     WGPUVertexBufferLayout buffer_layouts[1];
@@ -753,7 +710,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
     // Create depth-stencil State
     WGPUDepthStencilState depth_stencil_state = {};
     depth_stencil_state.format = bd->depthStencilFormat;
-#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
+#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
     depth_stencil_state.depthWriteEnabled = WGPUOptionalBool_False;
 #else
     depth_stencil_state.depthWriteEnabled = false;
@@ -773,32 +730,26 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
 
     bd->pipelineState = wgpuDeviceCreateRenderPipeline(bd->wgpuDevice, &graphics_pipeline_desc);
 
+    ImGui_ImplWGPU_CreateFontsTexture();
     ImGui_ImplWGPU_CreateUniformBuffer();
 
-    // Create sampler
-    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
-    WGPUSamplerDescriptor sampler_desc = {};
-    sampler_desc.minFilter = WGPUFilterMode_Linear;
-    sampler_desc.magFilter = WGPUFilterMode_Linear;
-    sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Linear;
-    sampler_desc.addressModeU = WGPUAddressMode_ClampToEdge;
-    sampler_desc.addressModeV = WGPUAddressMode_ClampToEdge;
-    sampler_desc.addressModeW = WGPUAddressMode_ClampToEdge;
-    sampler_desc.maxAnisotropy = 1;
-    bd->renderResources.Sampler = wgpuDeviceCreateSampler(bd->wgpuDevice, &sampler_desc);
-
     // Create resource bind group
     WGPUBindGroupEntry common_bg_entries[] =
     {
         { nullptr, 0, bd->renderResources.Uniforms, 0, MEMALIGN(sizeof(Uniforms), 16), 0, 0 },
         { nullptr, 1, 0, 0, 0, bd->renderResources.Sampler, 0 },
     };
+
     WGPUBindGroupDescriptor common_bg_descriptor = {};
     common_bg_descriptor.layout = bg_layouts[0];
     common_bg_descriptor.entryCount = sizeof(common_bg_entries) / sizeof(WGPUBindGroupEntry);
     common_bg_descriptor.entries = common_bg_entries;
     bd->renderResources.CommonBindGroup = wgpuDeviceCreateBindGroup(bd->wgpuDevice, &common_bg_descriptor);
+
+    WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bg_layouts[1], bd->renderResources.FontTextureView);
+    bd->renderResources.ImageBindGroup = image_bind_group;
     bd->renderResources.ImageBindGroupLayout = bg_layouts[1];
+    bd->renderResources.ImageBindGroups.SetVoidPtr(ImHashData(&bd->renderResources.FontTextureView, sizeof(ImTextureID)), image_bind_group);
 
     SafeRelease(vertex_shader_desc.module);
     SafeRelease(pixel_shader_desc.module);
@@ -817,10 +768,8 @@ void ImGui_ImplWGPU_InvalidateDeviceObjects()
     SafeRelease(bd->pipelineState);
     SafeRelease(bd->renderResources);
 
-    // Destroy all textures
-    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
-        if (tex->RefCount == 1)
-            ImGui_ImplWGPU_DestroyTexture(tex);
+    ImGuiIO& io = ImGui::GetIO();
+    io.Fonts->SetTexID(0); // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
 
     for (unsigned int i = 0; i < bd->numFramesInFlight; i++)
         SafeRelease(bd->pFrameResources[i]);
@@ -845,7 +794,6 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
     io.BackendRendererName = "imgui_impl_webgpu";
 #endif
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
     bd->initInfo = *init_info;
     bd->wgpuDevice = init_info->Device;
@@ -855,10 +803,13 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
     bd->numFramesInFlight = init_info->NumFramesInFlight;
     bd->frameIndex = UINT_MAX;
 
+    bd->renderResources.FontTexture = nullptr;
+    bd->renderResources.FontTextureView = nullptr;
     bd->renderResources.Sampler = nullptr;
     bd->renderResources.Uniforms = nullptr;
     bd->renderResources.CommonBindGroup = nullptr;
     bd->renderResources.ImageBindGroups.Data.reserve(100);
+    bd->renderResources.ImageBindGroup = nullptr;
     bd->renderResources.ImageBindGroupLayout = nullptr;
 
     // Create buffers with a default size (they will later be grown as needed)
@@ -893,7 +844,7 @@ void ImGui_ImplWGPU_Shutdown()
 
     io.BackendRendererName = nullptr;
     io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
     IM_DELETE(bd);
 }
 
@@ -901,8 +852,7 @@ void ImGui_ImplWGPU_NewFrame()
 {
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
     if (!bd->pipelineState)
-        if (!ImGui_ImplWGPU_CreateDeviceObjects())
-            IM_ASSERT(0 && "ImGui_ImplWGPU_CreateDeviceObjects() failed!");
+        ImGui_ImplWGPU_CreateDeviceObjects();
 }
 
 //-----------------------------------------------------------------------------

backends/imgui_impl_wgpu.h

@@ -10,12 +10,11 @@
 //#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID/ImTextureRef!
-//  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
+//  [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-//  [X] Renderer: Texture updates support for dynamic font system (ImGuiBackendFlags_RendererHasTextures).
-// Missing features or Issues:
-//  [ ] Renderer: Multi-viewport support (multiple windows), useful for desktop.
+// Missing features:
+//  [ ] Renderer: Multi-viewport support (multiple windows). Not meaningful on the web.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -58,9 +57,6 @@ IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURen
 IMGUI_IMPL_API bool ImGui_ImplWGPU_CreateDeviceObjects();
 IMGUI_IMPL_API void ImGui_ImplWGPU_InvalidateDeviceObjects();
 
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex);
-
 // [BETA] Selected render state data shared with callbacks.
 // This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplWGPU_RenderDrawData() call.
 // (Please open an issue if you feel you need access to more data)

backends/imgui_impl_win32.cpp

@@ -5,8 +5,8 @@
 //  [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -22,13 +22,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
-//  2025-06-02: [Docking] WM_DPICHANGED also apply io.ConfigDpiScaleViewports for main viewport instead of letting it be done by application code.
-//  2025-04-30: Inputs: Fixed an issue where externally losing mouse capture (due to e.g. focus loss) would fail to claim it again the next subsequent click. (#8594)
-//  2025-03-26: [Docking] Viewports: fixed an issue when closing a window from the OS close button (with io.ConfigViewportsNoDecoration = false) while user code was discarding the 'bool* p_open = false' output from Begin(). Because we allowed the Win32 window to close early, Windows destroyed it and our imgui window became not visible even though user code was still submitting it.
-//  2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
-//  2025-02-21: [Docking] WM_SETTINGCHANGE's SPI_SETWORKAREA message also triggers a refresh of monitor list. (#8415)
-//  2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2024-11-21: [Docking] Fixed a crash when multiple processes are running with multi-viewports, caused by misusage of GetProp(). (#8162, #8069)
 //  2024-10-28: [Docking] Rely on property stored inside HWND to retrieve context/viewport, should facilitate attempt to use this for parallel contexts. (#8069)
 //  2024-09-16: [Docking] Inputs: fixed an issue where a viewport destroyed while clicking would hog mouse tracking and temporary lead to incorrect update of HoveredWindow. (#7971)
@@ -285,8 +279,6 @@ static bool ImGui_ImplWin32_UpdateMouseCursor(ImGuiIO& io, ImGuiMouseCursor imgu
         case ImGuiMouseCursor_ResizeNESW:   win32_cursor = IDC_SIZENESW; break;
         case ImGuiMouseCursor_ResizeNWSE:   win32_cursor = IDC_SIZENWSE; break;
         case ImGuiMouseCursor_Hand:         win32_cursor = IDC_HAND; break;
-        case ImGuiMouseCursor_Wait:         win32_cursor = IDC_WAIT; break;
-        case ImGuiMouseCursor_Progress:     win32_cursor = IDC_APPSTARTING; break;
         case ImGuiMouseCursor_NotAllowed:   win32_cursor = IDC_NO; break;
         }
         ::SetCursor(::LoadCursor(nullptr, win32_cursor));
@@ -399,6 +391,8 @@ static void ImGui_ImplWin32_UpdateGamepads(ImGuiIO& io)
 {
 #ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
     ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData(io);
+    //if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
+    //    return;
 
     // Calling XInputGetState() every frame on disconnected gamepads is unfortunately too slow.
     // Instead we refresh gamepad availability by calling XInputGetCapabilities() _only_ after receiving WM_DEVICECHANGE.
@@ -528,8 +522,6 @@ ImGuiKey ImGui_ImplWin32_KeyEventToImGuiKey(WPARAM wParam, LPARAM lParam)
     if ((wParam == VK_RETURN) && (HIWORD(lParam) & KF_EXTENDED))
         return ImGuiKey_KeypadEnter;
 
-    const int scancode = (int)LOBYTE(HIWORD(lParam));
-    //IMGUI_DEBUG_LOG("scancode %3d, keycode = 0x%02X\n", scancode, wParam);
     switch (wParam)
     {
         case VK_TAB: return ImGuiKey_Tab;
@@ -547,17 +539,17 @@ ImGuiKey ImGui_ImplWin32_KeyEventToImGuiKey(WPARAM wParam, LPARAM lParam)
         case VK_SPACE: return ImGuiKey_Space;
         case VK_RETURN: return ImGuiKey_Enter;
         case VK_ESCAPE: return ImGuiKey_Escape;
-        //case VK_OEM_7: return ImGuiKey_Apostrophe;
+        case VK_OEM_7: return ImGuiKey_Apostrophe;
         case VK_OEM_COMMA: return ImGuiKey_Comma;
-        //case VK_OEM_MINUS: return ImGuiKey_Minus;
+        case VK_OEM_MINUS: return ImGuiKey_Minus;
         case VK_OEM_PERIOD: return ImGuiKey_Period;
-        //case VK_OEM_2: return ImGuiKey_Slash;
-        //case VK_OEM_1: return ImGuiKey_Semicolon;
-        //case VK_OEM_PLUS: return ImGuiKey_Equal;
-        //case VK_OEM_4: return ImGuiKey_LeftBracket;
-        //case VK_OEM_5: return ImGuiKey_Backslash;
-        //case VK_OEM_6: return ImGuiKey_RightBracket;
-        //case VK_OEM_3: return ImGuiKey_GraveAccent;
+        case VK_OEM_2: return ImGuiKey_Slash;
+        case VK_OEM_1: return ImGuiKey_Semicolon;
+        case VK_OEM_PLUS: return ImGuiKey_Equal;
+        case VK_OEM_4: return ImGuiKey_LeftBracket;
+        case VK_OEM_5: return ImGuiKey_Backslash;
+        case VK_OEM_6: return ImGuiKey_RightBracket;
+        case VK_OEM_3: return ImGuiKey_GraveAccent;
         case VK_CAPITAL: return ImGuiKey_CapsLock;
         case VK_SCROLL: return ImGuiKey_ScrollLock;
         case VK_NUMLOCK: return ImGuiKey_NumLock;
@@ -649,29 +641,8 @@ ImGuiKey ImGui_ImplWin32_KeyEventToImGuiKey(WPARAM wParam, LPARAM lParam)
         case VK_F24: return ImGuiKey_F24;
         case VK_BROWSER_BACK: return ImGuiKey_AppBack;
         case VK_BROWSER_FORWARD: return ImGuiKey_AppForward;
-        default: break;
+        default: return ImGuiKey_None;
     }
-
-    // Fallback to scancode
-    // https://handmade.network/forums/t/2011-keyboard_inputs_-_scancodes,_raw_input,_text_input,_key_names
-    switch (scancode)
-    {
-    case 41: return ImGuiKey_GraveAccent;  // VK_OEM_8 in EN-UK, VK_OEM_3 in EN-US, VK_OEM_7 in FR, VK_OEM_5 in DE, etc.
-    case 12: return ImGuiKey_Minus;
-    case 13: return ImGuiKey_Equal;
-    case 26: return ImGuiKey_LeftBracket;
-    case 27: return ImGuiKey_RightBracket;
-    case 86: return ImGuiKey_Oem102;
-    case 43: return ImGuiKey_Backslash;
-    case 39: return ImGuiKey_Semicolon;
-    case 40: return ImGuiKey_Apostrophe;
-    case 51: return ImGuiKey_Comma;
-    case 52: return ImGuiKey_Period;
-    case 53: return ImGuiKey_Slash;
-    default: break;
-    }
-
-    return ImGuiKey_None;
 }
 
 // Allow compilation with old Windows SDK. MinGW doesn't have default _WIN32_WINNT/WINVER versions.
@@ -707,15 +678,11 @@ static ImGuiMouseSource ImGui_ImplWin32_GetMouseSourceFromMessageExtraInfo()
 extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);                // Use ImGui::GetCurrentContext()
 extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam, ImGuiIO& io); // Doesn't use ImGui::GetCurrentContext()
 
-#ifndef WM_DPICHANGED
-#define WM_DPICHANGED 0x02E0 // From Windows SDK 8.1+ headers
-#endif
-
 IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
     // Most backends don't have silent checks like this one, but we need it because WndProc are called early in CreateWindow().
     // We silently allow both context or just only backend data to be nullptr.
-    if (ImGui::GetCurrentContext() == nullptr)
+    if (ImGui::GetCurrentContext() == NULL)
         return 0;
     return ImGui_ImplWin32_WndProcHandlerEx(hwnd, msg, wParam, lParam, ImGui::GetIO());
 }
@@ -724,7 +691,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
 IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, ImGuiIO& io)
 {
     ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData(io);
-    if (bd == nullptr)
+    if (bd == NULL)
         return 0;
     switch (msg)
     {
@@ -788,10 +755,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
         if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) { button = 1; }
         if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONDBLCLK) { button = 2; }
         if (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONDBLCLK) { button = (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) ? 3 : 4; }
-        HWND hwnd_with_capture = ::GetCapture();
-        if (bd->MouseButtonsDown != 0 && hwnd_with_capture != hwnd) // Did we externally lost capture?
-            bd->MouseButtonsDown = 0;
-        if (bd->MouseButtonsDown == 0 && hwnd_with_capture == nullptr)
+        if (bd->MouseButtonsDown == 0 && ::GetCapture() == nullptr)
             ::SetCapture(hwnd); // Allow us to read mouse coordinates when dragging mouse outside of our window bounds.
         bd->MouseButtonsDown |= 1 << button;
         io.AddMouseSourceEvent(mouse_source);
@@ -901,17 +865,6 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandlerEx(HWND hwnd, UINT msg, WPA
     case WM_DISPLAYCHANGE:
         bd->WantUpdateMonitors = true;
         return 0;
-    case WM_SETTINGCHANGE:
-        if (wParam == SPI_SETWORKAREA)
-            bd->WantUpdateMonitors = true;
-        return 0;
-    case WM_DPICHANGED:
-    {
-        const RECT* suggested_rect = (RECT*)lParam;
-        if (io.ConfigDpiScaleViewports)
-            ::SetWindowPos(hwnd, nullptr, suggested_rect->left, suggested_rect->top, suggested_rect->right - suggested_rect->left, suggested_rect->bottom - suggested_rect->top, SWP_NOZORDER | SWP_NOACTIVATE);
-        return 0;
-    }
     }
     return 0;
 }
@@ -937,9 +890,9 @@ static BOOL _IsWindowsVersionOrGreater(WORD major, WORD minor, WORD)
 {
     typedef LONG(WINAPI* PFN_RtlVerifyVersionInfo)(OSVERSIONINFOEXW*, ULONG, ULONGLONG);
     static PFN_RtlVerifyVersionInfo RtlVerifyVersionInfoFn = nullptr;
-    if (RtlVerifyVersionInfoFn == nullptr)
-        if (HMODULE ntdllModule = ::GetModuleHandleA("ntdll.dll"))
-            RtlVerifyVersionInfoFn = (PFN_RtlVerifyVersionInfo)GetProcAddress(ntdllModule, "RtlVerifyVersionInfo");
+	if (RtlVerifyVersionInfoFn == nullptr)
+		if (HMODULE ntdllModule = ::GetModuleHandleA("ntdll.dll"))
+			RtlVerifyVersionInfoFn = (PFN_RtlVerifyVersionInfo)GetProcAddress(ntdllModule, "RtlVerifyVersionInfo");
     if (RtlVerifyVersionInfoFn == nullptr)
         return FALSE;
 
@@ -947,10 +900,10 @@ static BOOL _IsWindowsVersionOrGreater(WORD major, WORD minor, WORD)
     ULONGLONG conditionMask = 0;
     versionInfo.dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
     versionInfo.dwMajorVersion = major;
-    versionInfo.dwMinorVersion = minor;
-    VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
-    VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
-    return (RtlVerifyVersionInfoFn(&versionInfo, VER_MAJORVERSION | VER_MINORVERSION, conditionMask) == 0) ? TRUE : FALSE;
+	versionInfo.dwMinorVersion = minor;
+	VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
+	VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
+	return (RtlVerifyVersionInfoFn(&versionInfo, VER_MAJORVERSION | VER_MINORVERSION, conditionMask) == 0) ? TRUE : FALSE;
 }
 
 #define _IsWindowsVistaOrGreater()   _IsWindowsVersionOrGreater(HIBYTE(0x0600), LOBYTE(0x0600), 0) // _WIN32_WINNT_VISTA
@@ -1012,16 +965,16 @@ float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor)
     UINT xdpi = 96, ydpi = 96;
     if (_IsWindows8Point1OrGreater())
     {
-        static HINSTANCE shcore_dll = ::LoadLibraryA("shcore.dll"); // Reference counted per-process
-        static PFN_GetDpiForMonitor GetDpiForMonitorFn = nullptr;
-        if (GetDpiForMonitorFn == nullptr && shcore_dll != nullptr)
+		static HINSTANCE shcore_dll = ::LoadLibraryA("shcore.dll"); // Reference counted per-process
+		static PFN_GetDpiForMonitor GetDpiForMonitorFn = nullptr;
+		if (GetDpiForMonitorFn == nullptr && shcore_dll != nullptr)
             GetDpiForMonitorFn = (PFN_GetDpiForMonitor)::GetProcAddress(shcore_dll, "GetDpiForMonitor");
-        if (GetDpiForMonitorFn != nullptr)
-        {
-            GetDpiForMonitorFn((HMONITOR)monitor, MDT_EFFECTIVE_DPI, &xdpi, &ydpi);
+		if (GetDpiForMonitorFn != nullptr)
+		{
+			GetDpiForMonitorFn((HMONITOR)monitor, MDT_EFFECTIVE_DPI, &xdpi, &ydpi);
             IM_ASSERT(xdpi == ydpi); // Please contact me if you hit this assert!
-            return xdpi / 96.0f;
-        }
+			return xdpi / 96.0f;
+		}
     }
 #ifndef NOGDI
     const HDC dc = ::GetDC(nullptr);
@@ -1085,10 +1038,10 @@ void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd)
 // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
 //--------------------------------------------------------------------------------------------------------
 
-// Helper structure we store in the void* PlatformUserData field of each ImGuiViewport to easily retrieve our backend data.
+// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
 struct ImGui_ImplWin32_ViewportData
 {
-    HWND    Hwnd;               // Stored in ImGuiViewport::PlatformHandle + PlatformHandleRaw
+    HWND    Hwnd;
     HWND    HwndParent;
     bool    HwndOwned;
     DWORD   DwStyle;
@@ -1311,12 +1264,7 @@ static void ImGui_ImplWin32_SetWindowTitle(ImGuiViewport* viewport, const char*
     ImVector<wchar_t> title_w;
     title_w.resize(n);
     ::MultiByteToWideChar(CP_UTF8, 0, title, -1, title_w.Data, n);
-
-    // Calling SetWindowTextW() in a project where UNICODE is not set doesn't work but there's a trick
-    // which is to pass it directly to the DefWindowProcW() handler.
-    // See: https://stackoverflow.com/questions/9410681/setwindowtextw-in-an-ansi-project
-    //::SetWindowTextW(vd->Hwnd, title_w.Data);
-    ::DefWindowProcW(vd->Hwnd, WM_SETTEXT, 0, (LPARAM)title_w.Data);
+    ::SetWindowTextW(vd->Hwnd, title_w.Data);
 }
 
 static void ImGui_ImplWin32_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
@@ -1360,7 +1308,7 @@ static void ImGui_ImplWin32_OnChangedViewport(ImGuiViewport* viewport)
 #endif
 }
 
-namespace ImGui { extern ImGuiIO& GetIO(ImGuiContext*); extern ImGuiPlatformIO& GetPlatformIO(ImGuiContext*); }
+namespace ImGui { extern ImGuiIO& GetIOEx(ImGuiContext*); extern ImGuiPlatformIO& GetPlatformIOEx(ImGuiContext*); }
 
 static LRESULT CALLBACK ImGui_ImplWin32_WndProcHandler_PlatformWindow(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
@@ -1369,18 +1317,18 @@ static LRESULT CALLBACK ImGui_ImplWin32_WndProcHandler_PlatformWindow(HWND hWnd,
     if (ctx == NULL)
         return DefWindowProc(hWnd, msg, wParam, lParam); // unlike ImGui_ImplWin32_WndProcHandler() we are called directly by Windows, we can't just return 0.
 
-    ImGuiIO& io = ImGui::GetIO(ctx);
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(ctx);
+    ImGuiIO& io = ImGui::GetIOEx(ctx);
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIOEx(ctx);
     LRESULT result = 0;
     if (ImGui_ImplWin32_WndProcHandlerEx(hWnd, msg, wParam, lParam, io))
-        result = 1;
+        result = true;
     else if (ImGuiViewport* viewport = ImGui_ImplWin32_FindViewportByPlatformHandle(platform_io, hWnd))
     {
         switch (msg)
         {
         case WM_CLOSE:
             viewport->PlatformRequestClose = true;
-            return 0; // 0 = Operating system will ignore the message and not destroy the window. We close ourselves.
+            break;
         case WM_MOVE:
             viewport->PlatformRequestMove = true;
             break;
@@ -1455,7 +1403,7 @@ static void ImGui_ImplWin32_InitMultiViewportSupport(bool platform_has_own_dc)
 
 static void ImGui_ImplWin32_ShutdownMultiViewportSupport()
 {
-    ::UnregisterClassW(L"ImGui Platform", ::GetModuleHandle(nullptr));
+    ::UnregisterClass(_T("ImGui Platform"), ::GetModuleHandle(nullptr));
     ImGui::DestroyPlatformWindows();
 }
 

backends/imgui_impl_win32.h

@@ -5,8 +5,8 @@
 //  [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
 //  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen.
 //  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy VK_* values are obsolete since 1.87 and not supported since 1.91.5]
-//  [X] Platform: Gamepad support.
-//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.

backends/sdlgpu3/build_instructions.txt

@@ -1,40 +0,0 @@
-
-Instructions to rebuild imgui_impl_sdlgpu3_shaders.h
-(You don't need to copy this folder if you are using the backend as-is)
-
-1) Compile the raw shader files to SPIRV:
-
-    glslc -o vertex.spv -c shader.vert
-    glslc -o fragment.spv -c shader.frag
-
-
-2) Build SDL_shadercross (https://github.com/libsdl-org/SDL_shadercross)
-
-
-3-A) Compiling for the Vulkan Driver:
-
-    Nothing to do, you just need the previous vertex.spv/fragment.spv, proceed to step 4
-
-
-3-B) Compiling for the DirectX 12 Driver:
-
-    ./shadercross vertex.spv -s SPIRV -d DXBC -t vertex -e main -o vertex.dxbc
-    ./shadercross fragment.spv -s SPIRV -d DXBC -t fragment -e main -o fragment.dxbc
-
-    Proceed to step 4
-
-
-3-C) Compiling for Metal (On windows you'll need the Metal Developer Tools for Windows, on linux you might use wine, but I never tested it):
-
-    ./shadercross vertex.spv -s SPIRV -d MSL -t vertex -e main -o vertex.metal
-    ./shadercross fragment.spv -s SPIRV -d MSL -t fragment -e main -o fragment.metal
-
-    xcrun -sdk macosx metal -o vertex.ir -c vertex.metal
-    xcrun -sdk macosx metal -o fragment.ir -c fragment.metal
-    xcrun -sdk macosx metallib -o vertex.metallib -c vertex.ir
-    xcrun -sdk macosx metallib -o fragment.metallib -c fragment.ir
-
-    Proceed to step 4
-
-
-4) Use a tool like https://notisrac.github.io/FileToCArray/ or misc/fonts/binary_to_compressed_c.cpp in imgui repository to convert the file to a uint8_t array.

backends/sdlgpu3/shader.frag

@@ -1,15 +0,0 @@
-#version 450 core
-layout(location = 0) out vec4 fColor;
-
-layout(set=2, binding=0) uniform sampler2D sTexture;
-
-layout(location = 0) in struct
-{
-    vec4 Color;
-    vec2 UV;
-} In;
-
-void main()
-{
-    fColor = In.Color * texture(sTexture, In.UV.st);
-}

backends/sdlgpu3/shader.vert

@@ -1,24 +0,0 @@
-#version 450 core
-layout(location = 0) in vec2 aPos;
-layout(location = 1) in vec2 aUV;
-layout(location = 2) in vec4 aColor;
-
-layout(set=1,binding=0) uniform UBO
-{
-    vec2 uScale;
-    vec2 uTranslate;
-} ubo;
-
-layout(location = 0) out struct
-{
-    vec4 Color;
-    vec2 UV;
-} Out;
-
-void main()
-{
-    Out.Color = aColor;
-    Out.UV = aUV;
-    gl_Position = vec4(aPos * ubo.uScale + ubo.uTranslate, 0, 1);
-    gl_Position.y *= -1.0f;
-}

backends/vulkan/build_instructions.txt

@@ -1,4 +0,0 @@
-
-Script to rebuild shaders stored inside imgui_impl_vulkan.h
-(You don't need to copy this folder if you are using the backend as-is)
-

docs/BACKENDS.md

@@ -1,33 +1,18 @@
 _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md or view this file with any Markdown viewer)_
 
-# Dear ImGui: Backends
+## Dear ImGui: Backends
 
-## Index
-
-- [Introduction](#introduction)
-   - [Getting Started](#getting-started)
-   - [What are Backends?](#what-are-backends)
-- [Using standard Backends](#using-standard-backends)
-- [Using third-party Backends](#using-third-party-backends)
-- [Writing your own Backend](#writing-your-own-backend)
-  - [Using a custom engine?](#using-a-custom-engine)
-  - [Platform: Implementing your Platform Backend](#platform-implementing-your-platform-backend)
-  - [Rendering: Implementing your RenderDrawData function](#rendering-implementing-your-renderdrawdata-function)
-  - [Rendering: Adding support for `ImGuiBackendFlags_RendererHasTextures` (1.92+)](#rendering-adding-support-for-imguibackendflags_rendererhastextures-192)
-
-## Introduction
-
-### Getting Started
+### Integrating backends
 
 💡 The **[Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) wiki guide** has examples of how to integrate Dear ImGui into an existing application.
 <BR> The [EXAMPLES.MD](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md) documentation may also be worth a read.
 
-### What are Backends?
+### What are backends?
 
 Dear ImGui is highly portable and only requires a few things to run and render, typically:
 
  - Required: providing mouse/keyboard inputs (fed into the `ImGuiIO` structure).
- - Required: creating, updating and destroying textures.
+ - Required: uploading the font atlas texture into graphics memory.
  - Required: rendering indexed textured triangles with a clipping rectangle.
 
  Extra features are opt-in, our backends try to support as many as possible:
@@ -49,13 +34,13 @@ and the backends which we are describing here (backends/ folder).
 - You should be able to write backends for pretty much any platform and any 3D graphics API.
   e.g. you can get creative and use software rendering or render remotely on a different machine.
 
-## Using standard Backends
+### Standard backends
 
 **The [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder contains backends for popular platforms/graphics API, which you can use in
 your application or engine to easily integrate Dear ImGui.** Each backend is typically self-contained in a pair of files: imgui_impl_XXXX.cpp + imgui_impl_XXXX.h.
 
 - The 'Platform' backends are in charge of: mouse/keyboard/gamepad inputs, cursor shape, timing, and windowing.<BR>
-  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), SDL3 ([imgui_impl_sdl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl3.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), etc.
+  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.cpp)), etc.
 
 - The 'Renderer' backends are in charge of: creating atlas texture, and rendering imgui draw data.<BR>
   e.g. DirectX11 ([imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)), OpenGL/WebGL ([imgui_impl_opengl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_opengl3.cpp)), Vulkan ([imgui_impl_vulkan.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_vulkan.cpp)), etc.
@@ -68,41 +53,44 @@ For example, the [example_win32_directx11](https://github.com/ocornut/imgui/tree
 
 **Once Dear ImGui is setup and running, run and refer to `ImGui::ShowDemoWindow()` in imgui_demo.cpp for usage of the end-user API.**
 
-### List of standard Backends
+### List of backends
 
 In the [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder:
 
 List of Platforms Backends:
 
-    imgui_impl_android.cpp      ; Android native app API
-    imgui_impl_glfw.cpp         ; GLFW (Windows, macOS, Linux, etc.) http://www.glfw.org/
-    imgui_impl_osx.mm           ; macOS native API (not as feature complete as glfw/sdl backends)
-    imgui_impl_sdl2.cpp         ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
-    imgui_impl_sdl3.cpp         ; SDL3 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
-    imgui_impl_win32.cpp        ; Win32 native API (Windows)
-    imgui_impl_glut.cpp         ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
+    imgui_impl_android.cpp    ; Android native app API
+    imgui_impl_glfw.cpp       ; GLFW (Windows, macOS, Linux, etc.) http://www.glfw.org/
+    imgui_impl_osx.mm         ; macOS native API (not as feature complete as glfw/sdl backends)
+    imgui_impl_sdl2.cpp       ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
+    imgui_impl_sdl3.cpp       ; SDL3 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org (*EXPERIMENTAL UNTIL SDL3 IS RELEASED*)
+    imgui_impl_win32.cpp      ; Win32 native API (Windows)
+    imgui_impl_glut.cpp       ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
 
 List of Renderer Backends:
 
-    imgui_impl_dx9.cpp          ; DirectX9
-    imgui_impl_dx10.cpp         ; DirectX10
-    imgui_impl_dx11.cpp         ; DirectX11
-    imgui_impl_dx12.cpp         ; DirectX12
-    imgui_impl_metal.mm         ; Metal (ObjC or C++)
-    imgui_impl_opengl2.cpp      ; OpenGL 2 (legacy fixed pipeline. Don't use with modern OpenGL code!)
-    imgui_impl_opengl3.cpp      ; OpenGL 3/4, OpenGL ES 2/3, WebGL
-    imgui_impl_sdlgpu3.cpp      ; SDL_GPU (portable 3D graphics API of SDL3)
+    imgui_impl_dx9.cpp        ; DirectX9
+    imgui_impl_dx10.cpp       ; DirectX10
+    imgui_impl_dx11.cpp       ; DirectX11
+    imgui_impl_dx12.cpp       ; DirectX12
+    imgui_impl_metal.mm       ; Metal (with ObjC)
+    imgui_impl_opengl2.cpp    ; OpenGL 2 (legacy, fixed pipeline <- don't use with modern OpenGL context)
+    imgui_impl_opengl3.cpp    ; OpenGL 3/4, OpenGL ES 2, OpenGL ES 3 (modern programmable pipeline)
     imgui_impl_sdlrenderer2.cpp ; SDL_Renderer (optional component of SDL2 available from SDL 2.0.18+)
-    imgui_impl_sdlrenderer3.cpp ; SDL_Renderer (optional component of SDL3. Prefer using SDL_GPU!).
-    imgui_impl_vulkan.cpp       ; Vulkan
-    imgui_impl_wgpu.cpp         ; WebGPU (web + desktop)
+    imgui_impl_sdlrenderer3.cpp ; SDL_Renderer (optional component of SDL3 available from SDL 3.0.0+)
+    imgui_impl_vulkan.cpp     ; Vulkan
+    imgui_impl_wgpu.cpp       ; WebGPU (web and desktop)
 
 List of high-level Frameworks Backends (combining Platform + Renderer):
 
     imgui_impl_allegro5.cpp
 
 Emscripten is also supported!
-The SDL2+GL, SDL3+GL, GLFW+GL and GLFW+WebGPU examples are all ready to build and run with Emscripten.
+The SDL+GL, GLFW+GL and GLFW+WebGPU examples are all ready to build and run with Emscripten.
+
+### Backends for third-party frameworks, graphics API or other languages
+
+See https://github.com/ocornut/imgui/wiki/Bindings for the full list (e.g. Adventure Game Studio, Cinder, Cocos2d-x, Game Maker Studio2, Godot, LÖVE+LUA, Magnum, Monogame, Ogre, openFrameworks, OpenSceneGraph, SFML, Sokol, Unity, Unreal Engine and many others).
 
 ### Recommended Backends
 
@@ -110,32 +98,18 @@ If you are not sure which backend to use, the recommended platform/frameworks fo
 
 |Library |Website |Backend |Note |
 |--------|--------|--------|-----|
-| SDL3 | https://www.libsdl.org | imgui_impl_sdl3.cpp | Recommended |
-| SDL2 | https://www.libsdl.org | imgui_impl_sdl2.cpp | |
 | GLFW | https://github.com/glfw/glfw | imgui_impl_glfw.cpp | |
+| SDL2 | https://www.libsdl.org | imgui_impl_sdl2.cpp | |
 | Sokol | https://github.com/floooh/sokol | [util/sokol_imgui.h](https://github.com/floooh/sokol/blob/master/util/sokol_imgui.h) | Lower-level than GLFW/SDL |
 
-If your application runs on Windows or if you are using multi-viewport, the win32 backend handles some details a little better than other backends.
-
-## Using third-party Backends
-
-See https://github.com/ocornut/imgui/wiki/Bindings for the full list (e.g. Adventure Game Studio, Cinder, Cocos2d-x, Game Maker Studio2, Godot, LÖVE+LUA, Magnum, Monogame, Ogre, openFrameworks, OpenSceneGraph, SFML, Sokol, Unity, Unreal Engine and many others).
-
-## Writing your own Backend
 
 ### Using a custom engine?
 
 You will likely be tempted to start by rewrite your own backend using your own custom/high-level facilities...<BR>
 Think twice!
 
-TL;DR;
-- Writing your own Renderer Backend is easy.
-- Writing your own Platform Backend is harder and you are more likely to introduce bugs.
-- **It is unlikely you will add value to your project by creating your own backend.**
-
-**Consider using the existing backends as-is**.
+If you are new to Dear ImGui, first try using the existing backends as-is.
 You will save lots of time integrating the library.
-Standard backends are battle-tested and handle subtleties that you are likely to implement incorrectly.
 You can LATER decide to rewrite yourself a custom backend if you really need to.
 In most situations, custom backends have fewer features and more bugs than the standard backends we provide.
 If you want portability, you can use multiple backends and choose between them either at compile time
@@ -157,221 +131,16 @@ Suggestion: try using a non-portable backend first (e.g. win32 + underlying grap
 your desktop builds working first. This will get you running faster and get your acquainted with
 how Dear ImGui works and is setup. You can then rewrite a custom backend using your own engine API...
 
+Generally:
+It is unlikely you will add value to your project by creating your own backend.
+
 Also:
 The [multi-viewports feature](https://github.com/ocornut/imgui/wiki/Multi-Viewports) of the 'docking' branch allows
 Dear ImGui windows to be seamlessly detached from the main application window. This is achieved using an
 extra layer to the Platform and Renderer backends, which allows Dear ImGui to communicate platform-specific
 requests such as: "create an additional OS window", "create a render context", "get the OS position of this
-window", but some things are more difficult "find OS window under mouse position BUT with some windows marked as passthrough". See 'ImGuiPlatformIO' for details.
+window" etc. See 'ImGuiPlatformIO' for details.
 Supporting the multi-viewports feature correctly using 100% of your own abstractions is more difficult
 than supporting single-viewport.
 If you decide to use unmodified imgui_impl_XXXX.cpp files, you can automatically benefit from
 improvements and fixes related to viewports and platform windows without extra work on your side.
-
-### Platform: Implementing your Platform Backend
-
-The Platform backends in impl_impl_XXX.cpp files contain many implementations.
-
-**In your `ImGui_ImplXXX_Init()` function:**
-- You can allocate your backend data and use `io.BackendPlatformUserData` to store/retrieve it later.
-- Set `io.BackendPlatformName` to a name `"imgui_impl_xxxx"` which will be available in e.g. About box.
-- Set `io.BackendPlatformUserData` to your backend data.
-- Set `io.BackendFlags` with supported optional features:
-  - `ImGuiBackendFlags_HasGamepad`: supports gamepad and currently has one connected.
-  - `ImGuiBackendFlags_HasMouseCursors`: supports honoring GetMouseCursor() value to change the OS cursor shape.
-  - `ImGuiBackendFlags_HasSetMousePos`: supports io.WantSetMousePos requests to reposition the OS mouse position (only used if io.ConfigNavMoveSetMousePos is set).
-  - `ImGuiBackendFlags_PlatformHasViewports` supports multiple viewports. (multi-viewports only)
-  - `ImGuiBackendFlags_HasMouseHoveredViewport` supports calling io.AddMouseViewportEvent() with the viewport under the mouse. IF POSSIBLE, ignore viewports with the ImGuiViewportFlags_NoInputs flag. If this cannot be done, Dear ImGui needs to use a flawed heuristic to find the viewport under mouse position, as it doesn't know about foreign windows. (multi-viewports only)
-
-**In your `ImGui_ImplXXX_NewFrame()` function:**
-- Set `io.DeltaTime` to the time elapsed (in seconds) since last frame.
-- Set `io.DisplaySize` to your window size.
-- Set `io.DisplayFrameBufferSize` to your window pixel density (macOS/iOS only).
-- Update mouse cursor shape is supported.
-
-**In your `ImGui_ImplXXX_NewFrame()` function or event handlers:**
-- **Mouse Support**
-  - Use `io.AddMousePosEvent()`, `io.AddMouseButtonEvent()`, `io.AddMouseWheelEvent()` to pass mouse events.
-  - Use `io.AddMouseSourceEvent()` if you are able to distinguish Mouse from TouchScreen from Pen inputs. TouchScreen and Pen inputs requires different logic for some Dear ImGui features.
-  - Use `io.AddMouseViewportEvent()` to specify which viewport/OS window is being hovered by the mouse. Read instructions carefully as this is not as simple as it seems! (multi-viewports only)
-- **Keyboard Support**
-  - Use `io.AddKeyEvent()` to pass key events.
-  - Use `io.AddInputCharacter()` to pass text/character events.
-- **Gamepad Support**
-  - Use `io.AddKeyEvent()` and `io.AddKeyAnalogEvent()` to pass gamepad events, using `ImGuiKey_GamepadXXX` values.
-- **Miscellaneous**
-  - Clipboard Support: setup `Platform_GetClipboardTextFn()`, `Platform_SetClipboardTextFn()` handlers in `ImGuiPlatformIO`.
-  - Open in Shell support: setup `Platform_OpenInShellFn()` handler in `ImGuiPlatformIO`.
-  - IME Support: setup `Platform_SetImeDataFn()` handler in `ImGuiPlatformIO`.
-  - Use `io.AddFocusEvent()` to notify when application window gets focused/unfocused.
-- **Multi-viewport Support**
-  - Update monitor list if supported.
-  - Setup all required handlers in `ImGuiPlatformIO` to create/destroy/move/resize/title/focus/etc. windows.
-
-### Rendering: Implementing your RenderDrawData function
-
-Note: set `ImGuiBackendFlags_RendererHasVtxOffset` to signify your backend can handle rendering with a vertex offset (`ImDrawCmd::VtxOffset` field).
-Otherwise, rendering will be limited to 64K vertices per window, which may be limiting for advanced plot.
-As an alternative, you may also use `#define ImDrawIdx unsigned int` in your `imconfig.h` file to support 32-bit indices.
-
-```cpp
-void MyImGuiBackend_RenderDrawData(ImDrawData* draw_data)
-{
-    // TODO: Update textures.
-    // - Most of the times, the list will have 1 element with an OK status, aka nothing to do.
-    // - This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates.
-    if (draw_data->Textures != nullptr)
-        for (ImTextureData* tex : *draw_data->Textures)
-            if (tex->Status != ImTextureStatus_OK)
-                MyImGuiBackend_UpdateTexture(tex);
-
-    // TODO: Setup render state:
-    // - Alpha-blending enabled
-    // - No backface culling
-    // - No depth testing, no depth writing
-    // - Scissor enabled
-    MyEngineSetupenderState();
-
-    // TODO: Setup texture sampling state
-    // - Sample with bilinear filtering (NOT point/nearest filtering).
-    // - Use 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines;' to allow point/nearest filtering.
-
-    // TODO: Setup viewport covering draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
-
-    // TODO: Setup orthographic projection matrix cover draw_data->DisplayPos to draw_data->DisplayPos + draw_data->DisplaySize
-
-    // TODO: Setup shader: vertex { float2 pos, float2 uv, u32 color }, fragment shader sample color from 1 texture, multiply by vertex color.
-
-    // Render command lists
-    ImVec2 clip_off = draw_data->DisplayPos;
-    ImVec2 clip_scale = draw_data->FramebufferScale;
-    for (const ImDrawList* draw_list : draw_data->CmdLists)
-    {
-        const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;  // vertex buffer generated by Dear ImGui
-        const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;   // index buffer generated by Dear ImGui
-        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
-        {
-            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
-            if (pcmd->UserCallback)
-            {
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
-                    MyEngineSetupenderState();
-                else
-                    pcmd->UserCallback(cmd_list, pcmd);
-            }
-            else
-            {
-                // Project scissor/clipping rectangles into framebuffer space
-                // - Clipping coordinates are provided in imgui coordinates space:
-                //   - For a given viewport, draw_data->DisplayPos == viewport->Pos and draw_data->DisplaySize == viewport->Size
-                //   - In a single viewport application, draw_data->DisplayPos == (0,0) and draw_data->DisplaySize == io.DisplaySize, but always use GetMainViewport()->Pos/Size instead of hardcoding those values.
-                //   - In the interest of supporting multi-viewport applications (see 'docking' branch on github),
-                //     always subtract draw_data->DisplayPos from clipping bounds to convert them to your viewport space.
-                // - Note that pcmd->ClipRect contains Min+Max bounds. Some graphics API may use Min+Max, other may use Min+Size (size being Max-Min)
-                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
-                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
-                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
-                    continue;
-
-                // We are using scissoring to clip some objects. All low-level graphics API should support it.
-                // - If your engine doesn't support scissoring yet, you may ignore this at first. You will get some small glitches
-                //   (some elements visible outside their bounds) but you can fix that once everything else works!
-                MyEngineSetScissor(clip_min.x, clip_min.y, clip_max.x, clip_max.y);
-
-                // The texture for the draw call is specified by pcmd->GetTexID().
-                // The vast majority of draw calls will use the Dear ImGui texture atlas, which value you have set yourself during initialization.
-                MyEngineBindTexture((MyTexture*)pcmd->GetTexID());
-
-                // Render 'pcmd->ElemCount/3' indexed triangles.
-                // By default the indices ImDrawIdx are 16-bit, you can change them to 32-bit in imconfig.h if your engine doesn't support 16-bit indices.
-                MyEngineDrawIndexedTriangles(pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset, vtx_buffer, pcmd->VtxOffset);
-            }
-        }
-    }
-}
-```
-
-### Rendering: Adding support for `ImGuiBackendFlags_RendererHasTextures` (1.92+)
-
-Version [1.92.0](https://github.com/ocornut/imgui/releases/tag/v1.92.0) (June 2025), added texture support in Rendering Backends, which is the backbone for supporting dynamic font scaling among other things.
-
-**In order to move forward and take advantage of all new features, support for `ImGuiBackendFlags_RendererHasTextures` will likely be REQUIRED for all backends before June 2026.**
-
-`ImFontAtlas` functions such as `Build()`, `GetTexDataAsRGBA32()`, `GetTexDataAsAlpha8()`, `SetTexID()`, `IsBuilt()` were obsoleted in favor if iterating a `Textures[]` array and updating their state when requested by Dear ImGui.
-
-**TD;DR: List of commits which added support for `ImGuiBackendFlags_RendererHasTextures` in standard backends:**
-
-- Allegro5: [ee8941e](https://github.com/ocornut/imgui/commit/ee8941e) (+35 lines)
-- DirectX9: [75efba7](https://github.com/ocornut/imgui/commit/75efba7) (+48 lines)
-- DirectX10: [2d2b1bc](https://github.com/ocornut/imgui/commit/2d2b1bc) (+40 lines)
-- DirectX11: [372fd27](https://github.com/ocornut/imgui/commit/372fd27) (+40 lines)
-- DirectX12: [eefe5d5](https://github.com/ocornut/imgui/commit/eefe5d5) (+87 lines)
-- Metal: [26c017d](https://github.com/ocornut/imgui/commit/26c017d) (+55 lines)
-- OpenGL Legacy: [0430c55](https://github.com/ocornut/imgui/commit/0430c55) (+25 lines)
-- OpenGL3/WebGL/ES: [dbb91a5](https://github.com/ocornut/imgui/commit/dbb91a5) (+47 lines)
-- SDL_Renderer2: [9fa65cd](https://github.com/ocornut/imgui/commit/9fa65cd) (+20 lines)
-- SDL_Renderer3: [e538883](https://github.com/ocornut/imgui/commit/e538883) (+19 lines)
-- SDL_GPU: [16fe666](https://github.com/ocornut/imgui/commit/16fe666) (+41 lines)
-- Vulkan: [abe294b](https://github.com/ocornut/imgui/commit/abe294b) (+33 lines)
-- WGPU: [571dae9](https://github.com/ocornut/imgui/commit/571dae9) (+30 lines)
-
-**Instructions:**
-
-- Set `ImGuiBackendFlags_RendererHasTextures` to signify your backend can handle the feature.
-- During rendering, e.g. in your RenderDrawData function, iterate `ImDrawData->Textures` array and process all textures.
-- During shutdown, iterate the `ImGui::GetPlatformIO().Textures` and destroy all textures.
-- (Both arrays are `ImVector<ImTextureData*>`. They are only in different location because: to allow advanced users to perform multi-threaded rendering, we store a pointer to the texture list in ImDrawData, with the aim that multi-threaded rendering users replace it with their own pointer.)
-
-Pseudo-code for processing a texture:
-```cpp
-if (draw_data->Textures != nullptr)
-    for (ImTextureData* tex : *draw_data->Textures)
-        if (tex->Status != ImTextureStatus_OK)
-            MyImGuiBackend_UpdateTexture(tex);
-```
-```cpp
-void MyImGuiBackend_UpdateTexture(ImTextureData* tex)
-{
-    if (tex->Status == ImTextureStatus_WantCreate)
-    {
-        // Create texture based on tex->Width, tex->Height.
-        // - Most backends only support tex->Format == ImTextureFormat_RGBA32.
-        // - Backends for particularly memory constrainted platforms may support tex->Format == ImTextureFormat_Alpha8.
-
-        // Upload all texture pixels
-        // - Read from our CPU-side copy of the texture and copy to your graphics API.
-        // - Use tex->Width, tex->Height, tex->GetPixels(), tex->GetPixelsAt(), tex->GetPitch() as needed.
-
-        // Store your data, and acknowledge creation.
-        tex->SetTexID(xxxx); // Specify backend-specific ImTextureID identifier which will be stored in ImDrawCmd.
-        tex->SetStatus(ImTextureStatus_OK);
-        tex->BackendUserData = xxxx; // Store more backend data if needed (most backend allocate a small texture to store data in there)
-    }
-    if (tex->Status == ImTextureStatus_WantUpdates)
-    {
-        // Upload a rectangle of pixels to the existing texture
-        // - We only ever write to textures regions which have never been used before!
-        // - Use tex->TexID or tex->BackendUserData to retrieve your stored data.
-        // - Use tex->UpdateRect.x/y, tex->UpdateRect.w/h to obtain the block position and size.
-        //   - Use tex->Updates[] to obtain individual sub-regions within tex->UpdateRect. Not recommended.
-        // - Read from our CPU-side copy of the texture and copy to your graphics API.
-        // - Use tex->Width, tex->Height, tex->GetPixels(), tex->GetPixelsAt(), tex->GetPitch() as needed.
-
-        // Acknowledge update
-        tex->SetStatus(ImTextureStatus_OK);
-    }
-    if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
-    {
-        // If you use staged rendering and have in-flight renders, changed tex->UnusedFrames > 0 check to higher count as needed e.g. > 2
-
-        // Destroy texture
-        // - Use tex->TexID or tex->BackendUserData to retrieve your stored data.
-        // - Destroy texture in your graphics API.
-
-        // Acknowledge destruction
-        tex->SetTexID(ImTextureID_Invalid);
-        tex->SetStatus(ImTextureStatus_Destroyed);
-    }
-}
-```
-Refer to "List of commits which added support for `ImGuiBackendFlags_RendererHasTextures` in standard backends" above for concrete examples of this.

docs/CONTRIBUTING.md

@@ -34,7 +34,7 @@ Only if you:
 
 Then please [use the Discussions forums](https://github.com/ocornut/imgui/discussions) instead of opening an issue.
 
-If Dear ImGui is successfully showing in your app and you have used Dear ImGui before, you can open an Issue. Any form of discussions is welcome as a new issue.
+If Dear ImGui is successfully showing in your app and you have used Dear ImGui before, you can open an Issue. Any form of discussions is welcome as a new issue. 
 
 ## How to open an issue
 
@@ -52,7 +52,7 @@ Steps:
 - **Please INCLUDE CODE. Provide a Minimal, Complete, and Verifiable Example ([MCVE](https://stackoverflow.com/help/mcve)) to demonstrate your problem**. An ideal submission includes a small piece of code that anyone can paste into one of the examples applications (examples/../main.cpp) or demo (imgui_demo.cpp) to understand and reproduce it. **Narrowing your problem to its shortest and purest form is the easiest way to understand it, explain it and fix it**. Please test your shortened code to ensure it exhibits the problem. **Often while creating the MCVE you will solve the problem!** Many questions that are missing a standalone verifiable example are missing the actual cause of their issue in the description, which ends up wasting everyone's time.
 - **Attach screenshots (or GIF/video) to clarify the context**. They often convey useful information that is omitted by the description. You can drag pictures/files in the message edit box. Avoid using 3rd party image hosting services, prefer the long-term longevity of GitHub attachments (you can drag pictures into your post). On Windows, you can use [ScreenToGif](https://www.screentogif.com/) to easily capture .gif files.
 - **If you are discussing an assert or a crash, please provide a debugger callstack**. Never state "it crashes" without additional information. If you don't know how to use a debugger and retrieve a callstack, learning about it will be useful.
-- **Please make sure that your project has asserts enabled.** Calls to IM_ASSERT() are scattered in the code to help catch common issues. When an assert is triggered read the comments around it. By default IM_ASSERT() calls the standard assert() function. To verify that your asserts are enabled, add the line `IM_ASSERT(false);` in your main() function. Your application should display an error message and abort. If your application doesn't report an error, your asserts are disabled.
+- **Please make sure that your project has asserts enabled.** Calls to IM_ASSERT() are scattered in the code to help catch common issues. When an assert is triggered read the comments around it. By default IM_ASSERT() calls the standard assert() function. To verify that your asserts are enabled, add the line `IM_ASSERT(false);` in your main() function. Your application should display an error message and abort. If your application doesn't report an error, your asserts are disabled. 
 - Please state if you have made substantial modifications to your copy of Dear ImGui or the back-end.
 - If you are not calling Dear ImGui directly from C++, please provide information about your Language and the wrapper/binding you are using.
 - Be mindful that messages are being sent to the mailbox of "Watching" users. Try to proofread your messages before sending them. Edits are not seen by those users unless they browse the site.
@@ -65,17 +65,17 @@ If you have been using Dear ImGui for a while or have been using C/C++ for sever
 
 ## How to open a Pull Request
 
-- **Please understand that by submitting a PR you are also submitting a request for the maintainer to review your code and then take over its maintenance.** PR should be crafted both in the interest of the end-users and also to ease the maintainer into understanding and accepting it.
+- **Please understand that by submitting a PR you are also submitting a request for the maintainer to review your code and then take over its maintenance.** PR should be crafted both in the interest of the end-users and also to ease the maintainer into understanding and accepting it. 
 - Many PRs are useful to demonstrate a need and a possible solution but aren't adequate for merging (causing other issues, not seeing other aspects of the big picture, etc.). In doubt, don't hesitate to push a PR because that is always the first step toward pointing toward a problem, and finding the mergeable solution! Even if a PR stays unmerged for a long time, its presence can be useful for other users and helps toward finding a general solution.
-- **When adding a feature,** please describe the usage context (how you intend to use it, why you need it, etc.). Be mindful of [The XY Problem](http://xyproblem.info/).
+- **When adding a feature,** please describe the usage context (how you intend to use it, why you need it, etc.). Be mindful of [The XY Problem](http://xyproblem.info/). 
 - **When fixing a warning or compilation problem,** please post the compiler log and specify the compiler version and platform you are using.
 - **Attach screenshots (or GIF/video) to clarify the context and demonstrate the feature at a glance.** You can drag pictures/files in the message edit box. Prefer the long-term longevity of GitHub attachments over 3rd party hosting (you can drag pictures into your post).
-- **Make sure your code follows the coding style already used in the codebase:** 4 spaces indentations (no tabs), `local_variable`, `FunctionName()`, `MemberName`, `// Text Comment`, `//CodeComment();`, C-style casts, etc.. We don't use modern C++ idioms and tend to use only a minimum of C++11 features. The applications under examples/ are generally less consistent because they sometimes try to mimic the coding style often adopted by a certain ecosystem (e.g. DirectX-related code tend to use the style of their sample).
+- **Make sure your code follows the coding style already used in the codebase:** 4 spaces indentations (no tabs), `local_variable`, `FunctionName()`, `MemberName`, `// Text Comment`, `//CodeComment();`, C-style casts, etc.. We don't use modern C++ idioms and tend to use only a minimum of C++11 features. The applications under examples/ are generally less consistent because they sometimes try to mimic the coding style often adopted by a certain ecosystem (e.g. DirectX-related code tend to use the style of their sample). 
 - **Make sure you create a branch dedicated to the pull request**. In Git, 1 PR is associated to 1 branch. If you keep pushing to the same branch after you submitted the PR, your new commits will appear in the PR (we can still cherry-pick individual commits).
 
 ## Copyright / Contributor License Agreement
 
 Any code you submit will become part of the repository and be distributed under the [Dear ImGui license](https://github.com/ocornut/imgui/blob/master/LICENSE.txt). By submitting code to the project you agree that the code is your work and that you can give it to the project.
 
-You also agree by submitting your code that you grant all transferable rights to the code to the project maintainer, including for example re-licensing the code, modifying the code, and distributing it in source or binary forms. Specifically, this includes a requirement that you assign copyright to the project maintainer. For this reason, do not modify any copyright statements in files in any PRs.
+You also agree by submitting your code that you grant all transferrable rights to the code to the project maintainer, including for example re-licensing the code, modifying the code, and distributing it in source or binary forms. Specifically, this includes a requirement that you assign copyright to the project maintainer. For this reason, do not modify any copyright statements in files in any PRs.
 

docs/EXAMPLES.md

@@ -3,7 +3,7 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/EXAMP
 ## Dear ImGui: Examples
 
 **The [examples/](https://github.com/ocornut/imgui/blob/master/examples) folder example applications (standalone, ready-to-build) for variety of
-platforms and graphics APIs.** They all use standard backends from the [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder (see [docs/BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md)).
+platforms and graphics APIs.** They all use standard backends from the [backends/](https://github.com/ocornut/imgui/blob/master/backends) folder (see [BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md)).
 
 The purpose of Examples is to showcase integration with backends, let you try Dear ImGui, and guide you toward
 integrating Dear ImGui in your own application/game/engine.
@@ -58,7 +58,7 @@ Allegro 5 example. <BR>
 Android + OpenGL3 (ES) example. <BR>
 = main.cpp + imgui_impl_android.cpp + imgui_impl_opengl3.cpp
 
-[example_apple_metal/](https://github.com/ocornut/imgui/tree/master/examples/example_apple_metal/) <BR>
+[example_apple_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_metal/) <BR>
 OSX & iOS + Metal example. <BR>
 = main.m + imgui_impl_osx.mm + imgui_impl_metal.mm <BR>
 It is based on the "cross-platform" game template provided with Xcode as of Xcode 9.
@@ -139,8 +139,8 @@ This support building with Emscripten and targeting WebGL.<BR>
 Prefer using that if you are using modern GL or WebGL in your application.
 
 [example_sdl2_sdlrenderer2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_sdlrenderer2/) <BR>
-SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL2 example.<BR>
-= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_sdlrenderer2.cpp <BR>
+SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL2 (most graphics backends are supported underneath) <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_sdlrenderer.cpp <BR>
 This requires SDL 2.0.18+ (released November 2021) <BR>
 
 [example_sdl2_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_vulkan/) <BR>
@@ -149,30 +149,6 @@ SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
 This is quite long and tedious, because: Vulkan. <BR>
 For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
 
-[example_sdl3_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_metal/) <BR>
-SDL3 + Metal example (Mac). <BR>
-= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_metal.mm <BR>
-
-[example_sdl3_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_opengl3/) <BR>
-SDL3 (Win32, Mac, Linux, etc.) + OpenGL3+/ES2/ES3 example. <BR>
-= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_opengl3.cpp <BR>
-This uses more modern GL calls and custom shaders. <BR>
-This support building with Emscripten and targeting WebGL.<BR>
-
-[example_sdl3_sdlgpu3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_sdlgpu3/) <BR>
-SDL3 (Win32, Mac, Linux, etc.) + SDL_GPU for SDL3 example.<BR>
-= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_sdlrenderer3.cpp <BR>
-
-[example_sdl3_sdlrenderer3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_sdlrenderer3/) <BR>
-SDL3 (Win32, Mac, Linux, etc.) + SDL_Renderer for SDL3 example.<BR>
-= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_sdlrenderer3.cpp <BR>
-
-[example_sdl3_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl3_vulkan/) <BR>
-SDL3 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
-= main.cpp + imgui_impl_sdl3.cpp + imgui_impl_vulkan.cpp <BR>
-This is quite long and tedious, because: Vulkan. <BR>
-For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
-
 [example_win32_directx9/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx9/) <BR>
 DirectX9 example, Windows only. <BR>
 = main.cpp + imgui_impl_win32.cpp + imgui_impl_dx9.cpp
@@ -191,19 +167,15 @@ DirectX12 example, Windows only. <BR>
 This is quite long and tedious, because: DirectX12.
 
 [example_win32_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_opengl3/) <BR>
-Raw Windows + OpenGL3 example (modern, programmable pipeline) <BR>
+Raw Windows + OpenGL3 + example (modern, programmable pipeline) <BR>
 = main.cpp + imgui_impl_win32.cpp + imgui_impl_opengl3.cpp <BR>
 
-[example_win32_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_win32_vulkan/) <BR>
-Raw Windows + Vulkan example <BR>
-= main.cpp + imgui_impl_win32.cpp + imgui_impl_vulkan.cpp <BR>
-
 
 ### Miscellaneous
 
 **Building**
 
-Unfortunately, nowadays it is still tedious to create and maintain portable build files using external
+Unfortunately nowadays it is still tedious to create and maintain portable build files using external
 libraries (the kind we're using here to create a window and render 3D triangles) without relying on
 third party software and build systems. For most examples here we choose to provide:
  - Makefiles for Linux/OSX
@@ -219,22 +191,22 @@ If you are interested in using Cmake to build and links examples, see:
 
 **About mouse cursor latency**
 
-Dear ImGui does not introduce significant extra lag for most behaviors,
+Dear ImGui has no particular extra lag for most behaviors,
 e.g. the last value passed to 'io.AddMousePosEvent()' before NewFrame() will result in windows being moved
 to the right spot at the time of EndFrame()/Render(). At 60 FPS your experience should be pleasant.
 
-However, consider that OS mouse cursors are typically rendered through a very specific hardware-accelerated
-path, which makes them feel smoother than the majority of content rendered via regular graphics API (including,
+However, consider that OS mouse cursors are typically drawn through a very specific hardware accelerated
+path and will feel smoother than the majority of contents rendered via regular graphics API (including,
 but not limited to Dear ImGui windows). Because UI rendering and interaction happens on the same plane
 as the mouse, that disconnect may be jarring to particularly sensitive users.
 You may experiment with enabling the io.MouseDrawCursor flag to request Dear ImGui to draw a mouse cursor
 using the regular graphics API, to help you visualize the difference between a "hardware" cursor and a
 regularly rendered software cursor.
-However, rendering a mouse cursor at 60 FPS will feel sluggish, so you likely won't want to enable that at
+However, rendering a mouse cursor at 60 FPS will feel sluggish so you likely won't want to enable that at
 all times. It might be beneficial for the user experience to switch to a software rendered cursor _only_
 when an interactive drag is in progress.
 
-Note that some setup configurations or GPU drivers may introduce additional display lag depending on their settings.
-If you notice that dragging windows is laggy and you are not sure what the cause is: try drawing a simple
-2D shape directly under the mouse cursor to help identify the issue!
+Note that some setup or GPU drivers are likely to be causing extra display lag depending on their settings.
+If you feel that dragging windows feels laggy and you are not sure what the cause is: try to build a simple
+drawing a flat 2D shape directly under the mouse cursor!
 

docs/FAQ.md

@@ -19,13 +19,12 @@ or view this file with any Markdown viewer.
 | **[How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?](#q-how-can-i-tell-whether-to-dispatch-mousekeyboard-to-dear-imgui-or-my-application)** |
 | [How can I enable keyboard or gamepad controls?](#q-how-can-i-enable-keyboard-or-gamepad-controls) |
 | [How can I use this on a machine without mouse, keyboard or screen? (input share, remote display)](#q-how-can-i-use-this-on-a-machine-without-mouse-keyboard-or-screen-input-share-remote-display) |
-| [How can I create my own backend?](q-how-can-i-create-my-own-backend)
 | [I integrated Dear ImGui in my engine and little squares are showing instead of text...](#q-i-integrated-dear-imgui-in-my-engine-and-little-squares-are-showing-instead-of-text) |
 | [I integrated Dear ImGui in my engine and some elements are clipping or disappearing when I move windows around...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-clipping-or-disappearing-when-i-move-windows-around) |
 | [I integrated Dear ImGui in my engine and some elements are displaying outside their expected windows boundaries...](#q-i-integrated-dear-imgui-in-my-engine-and-some-elements-are-displaying-outside-their-expected-windows-boundaries) |
 | **Q&A: Usage** |
 | **[About the ID Stack system..<br>Why is my widget not reacting when I click on it?<br>Why is the wrong widget reacting when I click on one?<br>How can I have widgets with an empty label?<br>How can I have multiple widgets with the same label?<br>How can I have multiple windows with the same label?](#q-about-the-id-stack-system)** |
-| [How can I display an image?](#q-how-can-i-display-an-image)<br>[What are ImTextureID/ImTextureRef?](#q-what-are-imtextureidimtextureref)|
+| [How can I display an image? What is ImTextureID, how does it work?](#q-how-can-i-display-an-image-what-is-imtextureid-how-does-it-work)|
 | [How can I use maths operators with ImVec2?](#q-how-can-i-use-maths-operators-with-imvec2) |
 | [How can I use my own maths types instead of ImVec2/ImVec4?](#q-how-can-i-use-my-own-maths-types-instead-of-imvec2imvec4) |
 | [How can I interact with standard C++ types (such as std::string and std::vector)?](#q-how-can-i-interact-with-standard-c-types-such-as-stdstring-and-stdvector) |
@@ -93,8 +92,8 @@ Many projects are using this branch and it is kept in sync with master regularly
 ### Q: How to get started?
 
 Read [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started). <BR>
-Read [docs/EXAMPLES.md](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md). <BR>
-Read [docs/BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md). <BR>
+Read [EXAMPLES.md](https://github.com/ocornut/imgui/blob/master/docs/EXAMPLES.md). <BR>
+Read [BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md). <BR>
 Read `PROGRAMMER GUIDE` section of [imgui.cpp](https://github.com/ocornut/imgui/blob/master/imgui.cpp). <BR>
 The [Wiki](https://github.com/ocornut/imgui/wiki) is a hub to many resources and links.
 
@@ -160,18 +159,9 @@ Console SDK also sometimes provide equivalent tooling or wrapper for Synergy-lik
 
 ---
 
-### Q: How can I create my own backend?
-- See [docs/BACKENDS.md](https://github.com/ocornut/imgui/blob/master/docs/BACKENDS.md).
-- See Documentation at the top of imgui.cpp.
-
-##### [Return to Index](#index)
-
----
-
 ### Q: I integrated Dear ImGui in my engine and little squares are showing instead of text...
 Your renderer backend is not using the font texture correctly or it hasn't been uploaded to the GPU.
-- If this happens using standard backends (before 1.92): A) have you modified the font atlas after `ImGui_ImplXXX_NewFrame()`? B) maybe the texture failed to upload, which **can if your texture atlas is too big**. Also see [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
-- If this happens using standard backends (after 1.92): please report.
+- If this happens using the standard backends: A) have you modified the font atlas after `ImGui_ImplXXX_NewFrame()`? B) maybe the texture failed to upload, which **can if your texture atlas is too big**. Also see [docs/FONTS.md](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md).
 - If this happens with a custom backend: make sure you have uploaded the font texture to the GPU, that all shaders are rendering states are setup properly (e.g. texture is bound). Compare your code to existing backends and use a graphics debugger such as [RenderDoc](https://renderdoc.org) to debug your rendering states.
 
 ##### [Return to Index](#index)
@@ -243,7 +233,7 @@ for (int n = 0; n < 3; n++)
 ImGui::End();
 </pre>
 </td>
-</tr>
+</tr>    
 </table>
 
 A primer on labels and the ID Stack...
@@ -385,73 +375,23 @@ node open/closed state differently. See what makes more sense in your situation!
 
 ---
 
-### Q: How can I display an image?
-### Q: What are ImTextureID/ImTextureRef?
+### Q: How can I display an image? What is ImTextureID, how does it work?
 
-**Short explanation:**
+Short explanation:
+- Refer to [Image Loading and Displaying Examples](https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples) on the [Wiki](https://github.com/ocornut/imgui/wiki).
 - You may use functions such as `ImGui::Image()`, `ImGui::ImageButton()` or lower-level `ImDrawList::AddImage()` to emit draw calls that will use your own textures.
-- To load and display your own textures, refer to [Image Loading and Displaying Examples](https://github.com/ocornut/imgui/wiki/Image-Loading-and-Displaying-Examples) on the [Wiki](https://github.com/ocornut/imgui/wiki).
 - Actual textures are identified in a way that is up to the user/engine. Those identifiers are stored and passed as an opaque ImTextureID value.
 - By default ImTextureID can store up to 64-bits. You may `#define` it to a custom type/structure if you need.
 - Loading image files from the disk and turning them into a texture is not within the scope of Dear ImGui (for a good reason), but the examples linked above may be useful references.
 
-**Details:**
-
-1.92 introduced `ImTextureRef` in June 2025.
-- All drawing functions using `ImTextureID` were changed to use `ImTextureRef`.
-- You can trivially create a `ImTextureRef` from a `ImTextureID`.
-- **If you use Image functions with textures that you have loaded/created yourself, you will mostly likely only ever store/manipulate `ImTextureID` and then pass them as `ImTextureRef`.**
-- You only NEED to manipulate `ImTextureRef` when dealing with textures managed by the backend itself, aka mainly the atlas texture for now.
-- We intentionally do not provide an implicit `ImTextureRef` -> `ImTextureID` cast operator because it is technically lossy to convert ImTextureRef to ImTextureID before rendering.
-
-**ImTextureID = backend specific, low-level identifier for a texture uploaded in GPU/graphics system.**
-```cpp
-#ifndef ImTextureID
-typedef ImU64 ImTextureID;  // Default: store up to 64-bits (any pointer or integer). A majority of backends are ok with that.
-#endif
-```
-- When a Rendered Backend creates a texture, it store its native identifier into a ImTextureID value (e.g. Used by DX11 backend to a `ID3D11ShaderResourceView*`; Used by OpenGL backends to store `GLuint`; Used by SDLGPU backend to store a `SDL_GPUTextureSamplerBinding*`, etc.).
-- User may submit their own textures to e.g. `ImGui::Image()` function by passing this value.
-- During the rendering loop, the Renderer Backend retrieve the ImTextureID, which stored inside a ImTextureRef, which is stored inside ImDrawCmd.
-- Compile-time type configuration:
-  - To use something other than a 64-bit value: add '#define ImTextureID MyTextureType*' in your imconfig.h file.
-  - This can be whatever to you want it to be! read the FAQ entry about textures for details.
-  - You may decide to store a higher-level structure containing texture, sampler, shader etc. with various constructors if you like. You will need to implement ==/!= operators.
-
-**ImTextureRef = higher-level identifier for a texture.**
-```cpp
-// Store a ImTextureID _or_ a ImTextureData*.
-struct ImTextureRef
-{
-    ImTextureRef()                          { _TexData = NULL; _TexID = ImTextureID_Invalid; }
-    ImTextureRef(ImTextureID tex_id)        { _TexData = NULL; _TexID = tex_id; }
-    inline ImTextureID  GetTexID() const    { return _TexData ? _TexData->TexID : _TexID; }
-
-    // Members (either are set, never both!)
-    ImTextureData*      _TexData;           //      A texture, generally owned by a ImFontAtlas. Will convert to ImTextureID during render loop, after texture has been uploaded.
-    ImTextureID         _TexID;             // _OR_ Low-level backend texture identifier, if already uploaded or created by user/app. Generally provided to e.g. ImGui::Image() calls.
-};
-```
-- The identifier is valid even before the texture has been uploaded to the GPU/graphics system.
-- This is what gets passed to functions such as `ImGui::Image()`, `ImDrawList::AddImage()`.
-- This is what gets stored in draw commands (`ImDrawCmd`) to identify a texture during rendering.
- - When a texture is created by user code (e.g. custom images), we directly store the low-level `ImTextureID`.
-   - Because of this, when displaying your own texture you are likely to ever only manage ImTextureID values on your side.
- - When a texture is created by the backend, we store a `ImTextureData*` which becomes an indirection to extract the `ImTextureID` value during rendering, after texture upload has happened.
- - To create a `ImTextureRef` from a `ImTextureData*` you can use `ImTextureData::GetTexRef()`.
-   We intentionally do not provide an `ImTextureRef` constructor for this: we don't expect this to be frequently useful to the end-user, and it would be erroneously called by many legacy code.
- - There is no constructor to create a `ImTextureRef` from a `ImTextureData*` as we don't expect this to be useful to the end-user, and it would be erroneously called by many legacy code.
- - If you want to bind the current atlas when using custom rectangles, you can use `io.Fonts->TexRef`.
- - Binding generators for languages such as C (which don't have constructors), should provide a helper, e.g. `inline ImTextureRef ImTextureRefFromID(ImTextureID tex_id) { ImTextureRef tex_ref = { ._TexData = NULL, .TexID = tex_id }; return tex_ref; }`
-
 **Please read documentations or tutorials on your graphics API to understand how to display textures on the screen before moving onward.**
 
 Long explanation:
 - Dear ImGui's job is to create "meshes", defined in a renderer-agnostic format made of draw commands and vertices. At the end of the frame, those meshes (ImDrawList) will be displayed by your rendering function. They are made up of textured polygons and the code to render them is generally fairly short (a few dozen lines). In the examples/ folder, we provide functions for popular graphics APIs (OpenGL, DirectX, etc.).
 - Each rendering function decides on a data type to represent "textures". The concept of what is a "texture" is entirely tied to your underlying engine/graphics API.
-We carry the information to identify a "texture" in the ImTextureID type, which itself tends to be stored inside a ImTextureRef.
+ We carry the information to identify a "texture" in the ImTextureID type.
 ImTextureID default to ImU64 aka 8 bytes worth of data: just enough to store one pointer or integer of your choice.
-Dear ImGui doesn't know or understand what you are storing in ImTextureID, it merely passes values until they reach your rendering function.
+Dear ImGui doesn't know or understand what you are storing in ImTextureID, it merely passes ImTextureID values until they reach your rendering function.
 - In the [examples/](https://github.com/ocornut/imgui/tree/master/examples) backends, for each graphics API we decided on a type that is likely to be a good representation for specifying an image from the end-user perspective. This is what the _examples_ rendering functions are using:
 ```cpp
 OpenGL:
@@ -599,50 +539,30 @@ ImGui::End();
 
 ### Q: How should I handle DPI in my application?
 
-Since 1.92 (June 2025) fonts may be dynamically used at any size.
+The short answer is: obtain the desired DPI scale, load your fonts resized with that scale (always round down fonts size to the nearest integer), and scale your Style structure accordingly using `style.ScaleAllSizes()`.
 
-**Scaling fonts**
+Your application may want to detect DPI change and reload the fonts and reset style between frames.
 
-To change font size:
-```cpp
-ImGui::PushFont(NULL, 42.0f);
-```
-To change font and font size:
-```cpp
-ImGui::PushFont(new_font, 42.0f);
-```
-To scale all fonts:
-```cpp
-style.FontScaleDpi = 2.0f;
-```
-In `docking` branch or with multi-viewports:
-```cpp
-io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-```
+Your ui code  should avoid using hardcoded constants for size and positioning. Prefer to express values as multiple of reference values such as `ImGui::GetFontSize()` or `ImGui::GetFrameHeight()`. So e.g. instead of seeing a hardcoded height of 500 for a given item/window, you may want to use `30*ImGui::GetFontSize()` instead.
 
-**Scaling style** (paddings, spacings, thicknesses)
+Down the line Dear ImGui will provide a variety of standardized reference values to facilitate using this.
 
-This is still massively work in progress, expect turbulence.
-Style values are currently not easily scalable dynamically.
-For single viewport application you can call once:
-```cpp
-style.ScaleAllSizes(factor); // call once!
-```
-If you need to change the scaling factor, it is currently most practical to reset the style and call this again with a new value.
+Applications in the `examples/` folder are not DPI aware partly because they are unable to load a custom font from the file-system (may change that in the future).
 
-Your UI code should avoid using hardcoded constants for size and positioning. Prefer to express values as multiple of reference values such as `ImGui::GetFontSize()` or `ImGui::GetFrameHeight()`. So e.g. instead of seeing a hardcoded height of 500 for a given item/window, you may want to use `30*ImGui::GetFontSize()` instead.
+The reason DPI is not auto-magically solved in stock examples is that we don't yet have a satisfying solution for the "multi-dpi" problem (using the `docking` branch: when multiple viewport windows are over multiple monitors using different DPI scales). The current way to handle this on the application side is:
+- Create and maintain one font atlas per active DPI scale (e.g. by iterating `platform_io.Monitors[]` before `NewFrame()`).
+- Hook `platform_io.OnChangedViewport()` to detect when a `Begin()` call makes a Dear ImGui window change monitor (and therefore DPI).
+- In the hook: swap atlas, swap style with correctly sized one, and remap the current font from one atlas to the other (you may need to maintain a remapping table of your fonts at varying DPI scales).
 
-Down the line Dear ImGui will provide a variety of standardized reference values to facilitate using this. This is expected to happen during subsequent 1.92.x releases.
+This approach is relatively easy and functional but comes with two issues:
+- It's not possibly to reliably size or position a window ahead of `Begin()` without knowing on which monitor it'll land.
+- Style override may be lost during the `Begin()` call crossing monitor boundaries. You may need to do some custom scaling mumbo-jumbo if you want your `OnChangedViewport()` handler to preserve style overrides.
 
-Applications in the `examples/` folder are partly DPI aware but they are unable to load a custom font from the file-system, so they look ugly (may change that in the future).
+Please note that if you are not using multi-viewports with multi-monitors using different DPI scales, you can ignore that and use the simpler technique recommended at the top.
 
-The reason DPI is not auto-magically solved in stock examples is that we don't yet have a satisfying solution for the "multi-dpi" problem (using the `docking` branch: when multiple viewport windows are over multiple monitors using different DPI scales) specifically for the `ImGuiStyle` structure. Fonts are however now perfectly scalable.
+On Windows, in addition to scaling the font size (make sure to round to an integer) and using `style.ScaleAllSizes()`, you will need to inform Windows that your application is DPI aware. If this is not done, Windows will scale the application window and the UI text will be blurry. Potential solutions to indicate DPI awareness on Windows are:
 
-**On Windows, you need to inform Windows that your application is DPI aware!**
-If this is not done, Windows will scale the application window and the UI text will be blurry. Potential solutions to indicate DPI awareness on Windows are:
-- For SDL2: the flag `SDL_WINDOW_ALLOW_HIGHDPI` needs to be passed to `SDL_CreateWindow()` + call `::SetProcessDPIAware()`.
-- For SDL3: the flag `SDL_WINDOW_HIGH_PIXEL_DENSITY` needs to be passed to `SDL_CreateWindow()`.
+- For SDL: the flag `SDL_WINDOW_ALLOW_HIGHDPI` needs to be passed to `SDL_CreateWindow()``.
 - For GLFW: this is done automatically.
 - For other Windows projects with other backends, or wrapper projects:
   - We provide a `ImGui_ImplWin32_EnableDpiAwareness()` helper method in the Win32 backend.
@@ -694,12 +614,9 @@ Use the font atlas to pack them into a single texture. Read [docs/FONTS.md](http
 ---
 
 ### Q: How can I display and input non-Latin characters such as Chinese, Japanese, Korean, Cyrillic?
+When loading a font, pass custom Unicode ranges to specify the glyphs to load.
 
-Since 1.92 (June 2025) and with an updated backend, it is not necessary to specify glyph ranges at all.
-
-Before 1.92, when loading a font, pass custom Unicode ranges to specify the glyphs to load.
 ```cpp
-// [BEFORE 1.92]
 // Add default Japanese ranges
 io.Fonts->AddFontFromFileTTF("myfontfile.ttf", size_in_pixels, nullptr, io.Fonts->GetGlyphRangesJapanese());
 
@@ -723,8 +640,8 @@ Text input: it is up to your application to pass the right character code by cal
 The applications in examples/ are doing that.
 Windows: you can use the WM_CHAR or WM_UNICHAR or WM_IME_CHAR message (depending if your app is built using Unicode or MultiByte mode).
 You may also use `MultiByteToWideChar()` or `ToUnicode()` to retrieve Unicode codepoints from MultiByte characters or keyboard state.
-Windows: if your language is relying on an Input Method Editor (IME), you can write your HWND to `ImGui::GetMainViewport()->PlatformHandleRaw`
-for the default implementation of `GetPlatformIO().Platform_SetImeDataFn()` to set your Microsoft IME position correctly.
+Windows: if your language is relying on an Input Method Editor (IME), you can write your HWND to ImGui::GetMainViewport()->PlatformHandleRaw
+for the default implementation of GetPlatformIO().Platform_SetImeDataFn() to set your Microsoft IME position correctly.
 
 ##### [Return to Index](#index)
 
@@ -749,7 +666,7 @@ You may take a look at:
 
 Yes. People have written game editors, data browsers, debuggers, profilers, and all sorts of non-trivial tools with the library. In my experience, the simplicity of the API is very empowering. Your UI runs close to your live data. Make the tools always-on and everybody in the team will be inclined to create new tools (as opposed to more "offline" UI toolkits where only a fraction of your team effectively creates tools). The list of sponsors below is also an indicator that serious game teams have been using the library.
 
-Dear ImGui is very programmer-centric and the immediate-mode GUI paradigm might require you to readjust some habits before you can realize its full potential. Dear ImGui is about making things that are simple, efficient, and powerful.
+Dear ImGui is very programmer centric and the immediate-mode GUI paradigm might require you to readjust some habits before you can realize its full potential. Dear ImGui is about making things that are simple, efficient, and powerful.
 
 Dear ImGui is built to be efficient and scalable toward the needs for AAA-quality applications running all day. The IMGUI paradigm offers different opportunities for optimization than the more typical RMGUI paradigm.
 

docs/FONTS.md

@@ -2,7 +2,7 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/FONTS
 
 ## Dear ImGui: Using Fonts
 
-The code in imgui.cpp embeds a copy of [ProggyClean.ttf](http://proggyfonts.net) (by Tristan Grimmer),
+The code in imgui.cpp embeds a copy of 'ProggyClean.ttf' (by Tristan Grimmer),
 a 13 pixels high, pixel-perfect font used by default. We embed it in the source code so you can use Dear ImGui without any file system access. ProggyClean does not scale smoothly, therefore it is recommended that you load your own file when using Dear ImGui in an application aiming to look nice and wanting to support multiple resolutions.
 
 You may also load external .TTF/.OTF files.
@@ -12,13 +12,11 @@ In the [misc/fonts/](https://github.com/ocornut/imgui/tree/master/misc/fonts) fo
 
 ## Index
 - [Troubleshooting](#troubleshooting)
-- [New! Dynamic Fonts system in 1.92 (June 2025)](#new-dynamic-fonts-system-in-192-june-2025)
 - [How should I handle DPI in my application?](#how-should-i-handle-dpi-in-my-application)
 - [Fonts Loading Instructions](#fonts-loading-instructions)
 - [Loading Font Data from Memory](#loading-font-data-from-memory)
 - [Loading Font Data Embedded In Source Code](#loading-font-data-embedded-in-source-code)
 - [Using Icon Fonts](#using-icon-fonts)
-  - [Excluding Overlapping Ranges](#excluding-overlapping-ranges)
 - [Using FreeType Rasterizer (imgui_freetype)](#using-freetype-rasterizer-imgui_freetype)
 - [Using Colorful Glyphs/Emojis](#using-colorful-glyphsemojis)
 - [Using Custom Glyph Ranges](#using-custom-glyph-ranges)
@@ -37,7 +35,7 @@ In the [misc/fonts/](https://github.com/ocornut/imgui/tree/master/misc/fonts) fo
 
 ### (1) Invalid filename due to use of `\` or unexpected working directory.
 
-See [About Filenames](#about-filenames). AddFontXXX() functions should assert if the filename is incorrect.
+See [About Filenames](#about-filenames). AddFontXXX functions should assert if the filename is incorrect.
 
 ### (2) Invalid UTF-8 encoding of your non-ASCII strings.
 
@@ -45,18 +43,14 @@ See [About UTF-8 Encoding](#about-utf-8-encoding). Use the encoding viewer to co
 
 ### (3) Missing glyph ranges.
 
-🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary.**
+You need to load a font with explicit glyph ranges if you want to use non-ASCII characters. See [Fonts Loading Instructions](#fonts-loading-instructions). Use [Debug Tools](#debug-tools) confirm loaded fonts and loaded glyph ranges.
 
-⏪ Before 1.92: you need to load a font with explicit glyph ranges if you want to use non-ASCII characters. See [Fonts Loading Instructions](#fonts-loading-instructions). Use [Debug Tools](#debug-tools) confirm loaded fonts and loaded glyph ranges.
-
-This was a previous  constraint of Dear ImGui (lifted in 1.92): when loading a font you need to specify which characters glyphs to load.
+This is a current constraint of Dear ImGui (which we will lift in the future): when loading a font you need to specify which characters glyphs to load.
 All loaded fonts glyphs are rendered into a single texture atlas ahead of time. Calling either of `io.Fonts->GetTexDataAsAlpha8()`, `io.Fonts->GetTexDataAsRGBA32()` or `io.Fonts->Build()` will build the atlas. This is generally called by the Renderer backend, e.g. `ImGui_ImplDX11_NewFrame()` calls it. **If you use custom glyphs ranges, make sure the array is persistent** and available during the calls to `GetTexDataAsAlpha8()/GetTexDataAsRGBA32()/Build()`.
 
 ### (4) Font atlas texture fails to upload to GPU.
 
-🆕 **Since 1.92, with an up to date backend: atlas is built incrementally and dynamically resized, this is less likely to happen**
-
-:rewind: This is often of byproduct of point 3. If you have large number of glyphs or multiple fonts, the texture may become too big for your graphics API. **The typical result of failing to upload a texture is if every glyph or everything appears as empty white rectangles.** Mind the fact that some graphics drivers have texture size limitation. If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
+This is often of byproduct of point 3. If you have large number of glyphs or multiple fonts, the texture may become too big for your graphics API. **The typical result of failing to upload a texture is if every glyph or everything appears as empty white rectangles.** Mind the fact that some graphics drivers have texture size limitation. If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
 
 ![empty squares](https://github.com/user-attachments/assets/68b50fb5-8b9d-4c38-baec-6ac384f06d26)
 
@@ -66,22 +60,9 @@ Some solutions:
 - Reduce glyphs ranges by calculating them from source localization data.
   You can use the `ImFontGlyphRangesBuilder` for this purpose and rebuilding your atlas between frames when new characters are needed. This will be the biggest win!
 - Set `io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight;` to disable rounding the texture height to the next power of two.
+- Set `io.Fonts.TexDesiredWidth` to specify a texture width to reduce maximum texture height (see comment in `ImFontAtlas::Build()` function).
 
-##### [Return to Index](#index)
-
----------------------------------------
-
-## New! Dynamic Fonts system in 1.92 (June 2025)
-
-v1.92 introduces a newer, dynamic font system. It requires backend to support the `ImGuiBackendFlags_HasTextures` feature:
-- Users of icons, Asian and non-English languages do not need to pre-build all glyphs ahead of time. Saving on loading time, memory, and also reducing issues with missing glyphs. Specifying glyph ranges is not needed anymore.
-- `PushFont(NULL, new_size)` may be used anytime to change font size.
-- Packing custom rectangles is more convenient as pixels may be written to immediately.
-- Any update to fonts previously required backend specific calls to re-upload the texture, and said calls were not portable across backends. It is now possible to scale fonts etc. in a way that doesn't require you to make backend-specific calls.
-- It is possible to plug a custom loader/backend to any font source.
-
-See [#8465](https://github.com/ocornut/imgui/issues/8465) for more details.
-
+Future versions of Dear ImGui should solve this problem.
 
 ##### [Return to Index](#index)
 
@@ -104,13 +85,6 @@ io.Fonts->AddFontDefault();
 ```
 
 **Load .TTF/.OTF file with:**
-
-🆕 **Since 1.92, with an up to date backend: passing a size is not necessary**
-```cpp
-ImGuiIO& io = ImGui::GetIO();
-io.Fonts->AddFontFromFileTTF("font.ttf");
-```
-:rewind: **Before 1.92, or without an up to date backend:**
 ```cpp
 ImGuiIO& io = ImGui::GetIO();
 io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
@@ -121,14 +95,14 @@ If you get an assert stating "Could not load font file!", your font filename is
 ```cpp
 // Init
 ImGuiIO& io = ImGui::GetIO();
-ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf",);
-ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf");
+ImFont* font1 = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels);
+ImFont* font2 = io.Fonts->AddFontFromFileTTF("anotherfont.otf", size_pixels);
 ```
 
 In your application loop, select which font to use:
 ```cpp
 ImGui::Text("Hello"); // use the default font (which is the first loaded font)
-ImGui::PushFont(font2, 0.0f); // change font, keep current size
+ImGui::PushFont(font2);
 ImGui::Text("Hello with another font");
 ImGui::PopFont();
 ```
@@ -136,22 +110,13 @@ ImGui::PopFont();
 **For advanced options create a ImFontConfig structure and pass it to the AddFont() function (it will be copied internally):**
 ```cpp
 ImFontConfig config;
-config.OversampleH = 1.0f;
+config.OversampleH = 2;
+config.OversampleV = 1;
+config.GlyphExtraSpacing.x = 1.0f;
 ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
 ```
 
 **Combine multiple fonts into one:**
-
-🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary.**
-```cpp
-// Load a first font
-ImFont* font = io.Fonts->AddFontDefault();
-ImFontConfig config;
-config.MergeMode = true;
-io.Fonts->AddFontFromFileTTF("DroidSans.ttf", 0.0f, &config);           // Merge into first font to add e.g. Asian characters
-io.Fonts->AddFontFromFileTTF("fontawesome-webfont.ttf", 0.0f, &config); // Merge into first font to add Icons
-```
-:rewind: **Before 1.92, or without an up to date backend:**
 ```cpp
 // Load a first font
 ImFont* font = io.Fonts->AddFontDefault();
@@ -169,7 +134,6 @@ io.Fonts->Build();
 
 **Add a fourth parameter to bake specific font ranges only:**
 
-🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary. All the GetGlyphRangesXXX() functions are marked obsolete.**
 ```cpp
 // Basic Latin, Extended Latin
 io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, nullptr, io.Fonts->GetGlyphRangesDefault());
@@ -184,18 +148,10 @@ See [Using Custom Glyph Ranges](#using-custom-glyph-ranges) section to create yo
 
 **Example loading and using a Japanese font:**
 
-🆕 **Since 1.92, with an up to date backend:**
-```cpp
-ImGuiIO& io = ImGui::GetIO();
-io.Fonts->AddFontFromFileTTF("NotoSansCJKjp-Medium.otf");
-```
-
-:rewind: **Before 1.92, or without an up to date backend:**
 ```cpp
 ImGuiIO& io = ImGui::GetIO();
 io.Fonts->AddFontFromFileTTF("NotoSansCJKjp-Medium.otf", 20.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
 ```
-
 ```cpp
 ImGui::Text(u8"こんにちは！テスト %d", 123);
 if (ImGui::Button(u8"ロード"))
@@ -262,24 +218,12 @@ To refer to the icon UTF-8 codepoints from your C++ code, you may use those head
 
 So you can use `ICON_FA_SEARCH` as a string that will render as a "Search" icon.
 
-🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary. You can omit this parameter.**
 Example Setup:
 ```cpp
 // Merge icons into default tool font
 #include "IconsFontAwesome.h"
 ImGuiIO& io = ImGui::GetIO();
 io.Fonts->AddFontDefault();
-ImFontConfig config;
-config.MergeMode = true;
-config.GlyphMinAdvanceX = 13.0f; // Use if you want to make the icon monospaced
-io.Fonts->AddFontFromFileTTF("fonts/fontawesome-webfont.ttf", 13.0f, &config);
-```
-:rewind: **Before 1.92:**
-```cpp
-// Merge icons into default tool font
-#include "IconsFontAwesome.h"
-ImGuiIO& io = ImGui::GetIO();
-io.Fonts->AddFontDefault();
 
 ImFontConfig config;
 config.MergeMode = true;
@@ -299,8 +243,7 @@ See Links below for other icons fonts and related tools.
 
 **Monospace Icons?**
 
-To make your icon look more monospace and facilitate alignment, you may want to set the `ImFontConfig::GlyphMinAdvanceX` value when loading an icon font.
-If you `GlyphMinAdvanceX` you need to pass a `font_size` to `AddFontXXX()` calls, as the MinAdvanceX value will be specified for the given size and scaled otherwise.
+To make your icon look more monospace and facilitate alignment, you may want to set the ImFontConfig::GlyphMinAdvanceX value when loading an icon font.
 
 **Screenshot**
 
@@ -311,49 +254,11 @@ Here's an application using icons ("Avoyd", https://www.avoyd.com):
 
 ---------------------------------------
 
-### Excluding Overlapping Ranges
-
-🆕 **Since 1.92, with an up to date backend: glyphs ranges are ignored**: when loading a glyph, input fonts in the merge list are queried in order. The first font which has the glyph loads it.
-<BR>‼️ **If you are merging several fonts, you may have undesirable overlapping ranges.** You can use `ImFontConfig::GlyphExcludeRanges[] `to specify ranges to ignore in a given Input.
-
-```cpp
-// Add Font Source 1 but ignore ICON_MIN_FA..ICON_MAX_FA range
-static ImWchar exclude_ranges[] = { ICON_MIN_FA, ICON_MAX_FA, 0 };
-ImFontConfig cfg1;
-cfg1.GlyphExcludeRanges = exclude_ranges;
-io.Fonts->AddFontFromFileTTF("segoeui.ttf", 0.0f, &cfg1);
-
-// Add Font Source 2, which expects to use the range above
-ImFontConfig cfg2;
-cfg2.MergeMode = true;
-io.Fonts->AddFontFromFileTTF("FontAwesome4.ttf", 0.0f, &cfg2);
-```
-Another (silly) example:
-```cpp
-// Remove 'A'-'Z' from first font
-static ImWchar exclude_ranges[] = { 'A', 'Z', 0 };
-ImFontConfig cfg1;
-cfg1.GlyphExcludeRanges = exclude_ranges;
-io.Fonts->AddFontFromFileTTF("segoeui.ttf", 0.0f, &cfg1);
-
-// Load another font to fill the gaps
-ImFontConfig cfg2;
-cfg2.MergeMode = true;
-io.Fonts->AddFontFromFileTTF("Roboto-Medium.ttf", 0.0f, &cfg2);
-```
-![image](https://github.com/user-attachments/assets/f3d751d3-1aee-4698-bd9b-f511902f56bb)
-
-You can use `Metrics/Debugger->Fonts->Font->Input Glyphs Overlap Detection Tool` to see list of glyphs available in multiple font sources. This can facilitate understanding which font input is providing which glyph.
-
-##### [Return to Index](#index)
-
----------------------------------------
-
 ## Using FreeType Rasterizer (imgui_freetype)
 
-- Dear ImGui uses [stb_truetype.h](https://github.com/nothings/stb/) to rasterize fonts (with optional oversampling). This technique and its implementation are not ideal for fonts rendered at small sizes, which may appear a little blurry or hard to read.
-- You can however use `imgui_freetype.cpp` from the [misc/freetype/](https://github.com/ocornut/imgui/tree/master/misc/freetype) folder. Compile with this file and add `#define IMGUI_ENABLE_FREETYPE` to your imconfig.h file or build system to automatically activate it.
-- FreeType supports auto-hinting which tends to improve the readability of small fonts. It makes a big difference especially at smaller resolutions.
+- Dear ImGui uses imstb\_truetype.h to rasterize fonts (with optional oversampling). This technique and its implementation are not ideal for fonts rendered at small sizes, which may appear a little blurry or hard to read.
+- There is an implementation of the ImFontAtlas builder using FreeType that you can use in the [misc/freetype/](https://github.com/ocornut/imgui/tree/master/misc/freetype) folder.
+- FreeType supports auto-hinting which tends to improve the readability of small fonts.
 - Read documentation in the [misc/freetype/](https://github.com/ocornut/imgui/tree/master/misc/freetype) folder.
 - Correct sRGB space blending will have an important effect on your font rendering quality.
 
@@ -375,9 +280,10 @@ You can use `Metrics/Debugger->Fonts->Font->Input Glyphs Overlap Detection Tool`
 io.Fonts->AddFontFromFileTTF("../../../imgui_dev/data/fonts/NotoSans-Regular.ttf", 16.0f);
 static ImWchar ranges[] = { 0x1, 0x1FFFF, 0 };
 static ImFontConfig cfg;
+cfg.OversampleH = cfg.OversampleV = 1;
 cfg.MergeMode = true;
-cfg.FontLoaderFlags |= ImGuiFreeTypeLoaderFlags_LoadColor;
-io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\seguiemj.ttf", 16.0f, &cfg);
+cfg.FontBuilderFlags |= ImGuiFreeTypeBuilderFlags_LoadColor;
+io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\seguiemj.ttf", 16.0f, &cfg, ranges);
 ```
 
 ##### [Return to Index](#index)
@@ -386,9 +292,7 @@ io.Fonts->AddFontFromFileTTF("C:\\Windows\\Fonts\\seguiemj.ttf", 16.0f, &cfg);
 
 ## Using Custom Glyph Ranges
 
-🆕 **Since 1.92, with an up to date backend: specifying glyph ranges is unnecessary. Therefore this is not really useful any more.**
-
-:rewind: You can use the `ImFontGlyphRangesBuilder` helper to create glyph ranges based on text input. For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs.
+You can use the `ImFontGlyphRangesBuilder` helper to create glyph ranges based on text input. For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs.
 ```cpp
 ImVector<ImWchar> ranges;
 ImFontGlyphRangesBuilder builder;
@@ -407,19 +311,10 @@ io.Fonts->Build();                                     // Build the atlas while
 
 ## Using Custom Colorful Icons
 
-🆕 **Since 1.92, with an up to date backend: this system has been revamped.**
-
-TL;DR; With the new system, it is recommended that you create a custom `ImFontLoader` and register your fonts with it.
-`AddCustomRectFontGlyph()` has been obsoleted because its API does not make much sense with resizable fonts.
-
-You can ask questions in [#8466](https://github.com/ocornut/imgui/issues/8466).
-
-:rewind: **Before 1.92:**
-
 As an alternative to rendering colorful glyphs using imgui_freetype with `ImGuiFreeTypeBuilderFlags_LoadColor`, you may allocate your own space in the texture atlas and write yourself into it. **(This is a BETA api, use if you are familiar with dear imgui and with your rendering backend)**
 
 - You can use the `ImFontAtlas::AddCustomRect()` and `ImFontAtlas::AddCustomRectFontGlyph()` api to register rectangles that will be packed into the font atlas texture. Register them before building the atlas, then call Build()`.
-- You can then use `ImFontAtlas::GetCustomRect(int)` to query the position/size of your rectangle within the texture, and blit/copy any graphics data of your choice into those rectangles.
+- You can then use `ImFontAtlas::GetCustomRectByIndex(int)` to query the position/size of your rectangle within the texture, and blit/copy any graphics data of your choice into those rectangles.
 - This API is beta because it is likely to change in order to support multi-dpi (multiple viewports on multiple monitors with varying DPI scale).
 
 #### Pseudo-code:
@@ -439,7 +334,9 @@ int tex_width, tex_height;
 io.Fonts->GetTexDataAsRGBA32(&tex_pixels, &tex_width, &tex_height);
 
 for (int rect_n = 0; rect_n < IM_ARRAYSIZE(rect_ids); rect_n++)
-    if (const ImTextureRect* rect = io.Fonts->GetCustomRect(rect_ids[rect_n]))
+{
+    int rect_id = rect_ids[rect_n];
+    if (const ImFontAtlasCustomRect* rect = io.Fonts->GetCustomRectByIndex(rect_id))
     {
         // Fill the custom rectangle with red pixels (in reality you would draw/copy your bitmap data here!)
         for (int y = 0; y < rect->Height; y++)
@@ -449,6 +346,7 @@ for (int rect_n = 0; rect_n < IM_ARRAYSIZE(rect_ids); rect_n++)
                 *p++ = IM_COL32(255, 0, 0, 255);
         }
     }
+}
 ```
 
 ##### [Return to Index](#index)
@@ -587,18 +485,15 @@ Some fonts files are available in the `misc/fonts/` folder:
 
 #### MONOSPACE FONTS
 
-<img width="1172" height="715" alt="image" src="https://github.com/user-attachments/assets/c9702534-4877-41c9-ae0d-252933c26ced" />
-
 Pixel Perfect:
 - Proggy Fonts, by Tristan Grimmer http://www.proggyfonts.net or http://upperboundsinteractive.com/fonts.php
 - Sweet16, Sweet16 Mono, by Martin Sedlak (Latin + Supplemental + Extended A) https://github.com/kmar/Sweet16Font (also include an .inl file to use directly in dear imgui.)
 
 Regular:
-- ProggyVector if you want the old school Dear ImGui font to scale: https://github.com/bluescan/proggyfonts
-- Google Noto Mono Fonts: https://www.google.com/get/noto/
-- Typefaces for source code beautification: https://github.com/chrissimpkins/codeface
-- Programmation fonts: http://s9w.github.io/font_compare/
-- Inconsolata: http://www.levien.com/type/myfonts/inconsolata.html
+- Google Noto Mono Fonts https://www.google.com/get/noto/
+- Typefaces for source code beautification https://github.com/chrissimpkins/codeface
+- Programmation fonts http://s9w.github.io/font_compare/
+- Inconsolata http://www.levien.com/type/myfonts/inconsolata.html
 - Adobe Source Code Pro: Monospaced font family for ui & coding environments https://github.com/adobe-fonts/source-code-pro
 - Monospace/Fixed Width Programmer's Fonts http://www.lowing.org/fonts/
 

docs/README.md

@@ -16,7 +16,7 @@ Businesses: support continued development and maintenance via invoiced sponsorin
 | [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Getting Started & Integration](#getting-started--integration) |
 :----------------------------------------------------------: |
 | [Gallery](#gallery) - [Support, FAQ](#support-frequently-asked-questions-faq) -  [How to help](#how-to-help) - **[Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding)** - [Credits](#credits) - [License](#license) |
-| [Wiki](https://github.com/ocornut/imgui/wiki) - [Extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions) - [Language bindings & framework backends](https://github.com/ocornut/imgui/wiki/Bindings) - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) - [User quotes](https://github.com/ocornut/imgui/wiki/Quotes) |
+| [Wiki](https://github.com/ocornut/imgui/wiki) - [Extensions](https://github.com/ocornut/imgui/wiki/Useful-Extensions) - [Languages bindings & frameworks backends](https://github.com/ocornut/imgui/wiki/Bindings) - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) - [User quotes](https://github.com/ocornut/imgui/wiki/Quotes) |
 
 ### The Pitch
 
@@ -110,7 +110,7 @@ Reading the changelogs is a good way to keep up to date with the things Dear ImG
 Calling the `ImGui::ShowDemoWindow()` function will create a demo window showcasing a variety of features and examples. The code is always available for reference in `imgui_demo.cpp`. [Here's how the demo looks](https://raw.githubusercontent.com/wiki/ocornut/imgui/web/v167/v167-misc.png).
 
 You should be able to build the examples from sources. If you don't, let us know! If you want to have a quick look at some Dear ImGui features, you can download Windows binaries of the demo app here:
-- [imgui-demo-binaries-20250625.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20250625.zip) (Windows, 1.92.0, built 2025/06/25, master) or [older binaries](https://www.dearimgui.com/binaries).
+- [imgui-demo-binaries-20240105.zip](https://www.dearimgui.com/binaries/imgui-demo-binaries-20240105.zip) (Windows, 1.90.1 WIP, built 2024/01/05, master) or [older binaries](https://www.dearimgui.com/binaries).
 
 The demo applications are not DPI aware so expect some blurriness on a 4K screen. For DPI awareness in your application, you can load/reload your font at a different scale and scale your style with `style.ScaleAllSizes()` (see [FAQ](https://www.dearimgui.com/faq)).
 
@@ -120,10 +120,10 @@ See the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started)
 
 On most platforms and when using C++, **you should be able to use a combination of the [imgui_impl_xxxx](https://github.com/ocornut/imgui/tree/master/backends) backends without modification** (e.g. `imgui_impl_win32.cpp` + `imgui_impl_dx11.cpp`). If your engine supports multiple platforms, consider using more imgui_impl_xxxx files instead of rewriting them: this will be less work for you, and you can get Dear ImGui running immediately. You can _later_ decide to rewrite a custom backend using your custom engine functions if you wish so.
 
-Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading a texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles, which is essentially what Backends are doing. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that: setting up a window and using backends. If you follow the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide it should in theory take you less than an hour to integrate Dear ImGui.  **Make sure to spend time reading the [FAQ](https://www.dearimgui.com/faq), comments, and the examples applications!**
+Integrating Dear ImGui within your custom engine is a matter of 1) wiring mouse/keyboard/gamepad inputs 2) uploading a texture to your GPU/render engine 3) providing a render function that can bind textures and render textured triangles, which is essentially what Backends are doing. The [examples/](https://github.com/ocornut/imgui/tree/master/examples) folder is populated with applications doing just that: setting up a window and using backends. If you follow the [Getting Started](https://github.com/ocornut/imgui/wiki/Getting-Started) guide it should in theory takes you less than an hour to integrate Dear ImGui.  **Make sure to spend time reading the [FAQ](https://www.dearimgui.com/faq), comments, and the examples applications!**
 
 Officially maintained backends/bindings (in repository):
-- Renderers: DirectX9, DirectX10, DirectX11, DirectX12, Metal, OpenGL/ES/ES2, SDL_GPU, SDL_Renderer2/3, Vulkan, WebGPU.
+- Renderers: DirectX9, DirectX10, DirectX11, DirectX12, Metal, OpenGL/ES/ES2, SDL_Renderer, Vulkan, WebGPU.
 - Platforms: GLFW, SDL2/SDL3, Win32, Glut, OSX, Android.
 - Frameworks: Allegro5, Emscripten.
 
@@ -184,7 +184,7 @@ How to help
 - See [GitHub Forum/Issues](https://github.com/ocornut/imgui/issues).
 - You may help with development and submit pull requests! Please understand that by submitting a PR you are also submitting a request for the maintainer to review your code and then take over its maintenance forever. PR should be crafted both in the interest of the end-users and also to ease the maintainer into understanding and accepting it.
 - See [Help wanted](https://github.com/ocornut/imgui/wiki/Help-Wanted) on the [Wiki](https://github.com/ocornut/imgui/wiki/) for some more ideas.
-- Be a [Funding Supporter](https://github.com/ocornut/imgui/wiki/Funding)! Have your company financially support this project via invoiced sponsors/maintenance or by buying a license for [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine) (please reach out: contact AT dearimgui DOT com).
+- Be a [Funding Supporter](https://github.com/ocornut/imgui/wiki/Funding)! Have your company financially support this project via invoiced sponsors/maintenance or by buying a license for [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine) (please reach out: omar AT dearimgui DOT com).
 
 Sponsors
 --------
@@ -214,7 +214,7 @@ Omar: "I first discovered the IMGUI paradigm at [Q-Games](https://www.q-games.co
 Embeds [ProggyClean.ttf](https://www.proggyfonts.net) font by Tristan Grimmer (MIT license).
 <br>Embeds [stb_textedit.h, stb_truetype.h, stb_rect_pack.h](https://github.com/nothings/stb/) by Sean Barrett (public domain).
 
-Inspiration, feedback, and testing for early versions: Casey Muratori, Atman Binstock, Mikko Mononen, Emmanuel Briney, Stefan Kamoda, Anton Mikhailov, Matt Willis. Special thanks to Alex Evans, Patrick Doane, Marco Koegler for kindly helping. Also thank you to everyone posting feedback, questions and patches on GitHub.
+Inspiration, feedback, and testing for early versions: Casey Muratori, Atman Binstock, Mikko Mononen, Emmanuel Briney, Stefan Kamoda, Anton Mikhailov, Matt Willis. Also thank you to everyone posting feedback, questions and patches on GitHub.
 
 License
 -------

docs/TODO.txt

@@ -9,7 +9,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - doc: add a proper documentation system (maybe relying on automation? #435)
  - doc: checklist app to verify backends/integration of imgui (test inputs, rendering, callback, etc.).
  - doc/tips: tips of the day: website? applet in imgui_club?
-
+ 
  - window: preserve/restore relative focus ordering (persistent or not), and e.g. of multiple reappearing windows (#2304) -> also see docking reference to same #.
  - window: calling SetNextWindowSize() every frame with <= 0 doesn't do anything, may be useful to allow (particularly when used for a single axis). (#690)
  - window: add a way for very transient windows (non-saved, temporary overlay over hundreds of objects) to "clean" up from the global window list. perhaps a lightweight explicit cleanup pass.
@@ -22,10 +22,13 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - window: using SetWindowPos() inside Begin() and moving the window with the mouse reacts a very ugly glitch. We should just defer the SetWindowPos() call.
  - window: GetWindowSize() returns (0,0) when not calculated? (#1045)
  - window: investigate better auto-positioning for new windows.
- - window: top most window flag? more z-order control? (#2574)
+ - window: top most window flag? more z-order contrl? (#2574)
  - window/size: manually triggered auto-fit (double-click on grip) shouldn't resize window down to viewport size?
  - window/size: how to allow to e.g. auto-size vertically to fit contents, but be horizontally resizable? Assuming SetNextWindowSize() is modified to treat -1.0f on each axis as "keep as-is" (would be good but might break erroneous code): Problem is UpdateWindowManualResize() and lots of code treat (window->AutoFitFramesX > 0 || window->AutoFitFramesY > 0) together.
  - window/opt: freeze window flag: if not focused/hovered, return false, render with previous ImDrawList. and/or reduce refresh rate. -> this may require enforcing that it is illegal to submit contents if Begin returns false.
+ - window/child: background options for child windows, border option (disable rounding).
+ - window/child: allow resizing of child windows (possibly given min/max for each axis?.)
+ - window/child: allow SetNextWindowContentSize() to work on child windows.
  - window/clipping: some form of clipping when DisplaySize (or corresponding viewport) is zero.
  - window/tabbing: add a way to signify that a window or docked window requires attention (e.g. blinking title bar, trying to click behind a modal).
  - window/id_stack: add e.g. window->GetIDFromPath() with support for leading / and ../ (#1390, #331) -> model from test engine.
@@ -54,7 +57,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - widgets: start exposing PushItemFlag() and ImGuiItemFlags
  - widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260
  - widgets: activate by identifier (trigger button, focus given id)
- - widgets: custom glyph/shapes replacements for stock shapes. (also #6090 #2431 #2235 #6517)
+ - widgets: custom glyph/shapes replacements for stock sapes. (also #6090 #2431 #2235 #6517)
  - widgets: coloredit: keep reporting as active when picker is on?
  - widgets: group/scalarn functions: expose more per-component information. e.g. store NextItemData.ComponentIdx set by scalarn function, groups can expose them back somehow.
  - selectable: using (size.x == 0.0f) and (SelectableTextAlign.x > 0.0f) followed by SameLine() is currently not supported.
@@ -162,7 +165,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - image/image button: misalignment on padded/bordered button?
  - image/image button: parameters are confusing, image() has tint_col,border_col whereas imagebutton() has bg_col/tint_col. Even thou they are different parameters ordering could be more consistent. can we fix that?
  - slider: allow using the [-]/[+] buttons used by InputFloat()/InputInt()
- - slider: add dragging-based widgets to edit values with mouse (on 2 axes), saving screen real-estate.
+ - slider: add dragging-based widgets to edit values with mouse (on 2 axises), saving screen real-estate.
  - slider: tint background based on value (e.g. v_min -> v_max, or use 0.0f either side of the sign)
  - slider: relative dragging? + precision dragging
  - slider: step option (#1183)
@@ -238,7 +241,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - log: let user copy any window content to clipboard easily (CTRL+C on windows? while moving it? context menu?). code is commented because it fails with multiple Begin/End pairs.
  - log: obsolete LogButtons().... (was: LogButtons() options for specifying depth and/or hiding depth slider)
 
- - filters: set a current filter that certain items (e.g. tree node) can automatically query to hide themselves
+ - filters: set a current filter that certains items (e.g. tree node) can automatically query to hide themselves
  - filters: handle wild-cards (with implicit leading/trailing *), reg-exprs
  - filters: fuzzy matches (may use code at blog.forrestthewoods.com/4cffeed33fdb)
 
@@ -269,14 +272,22 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
 
  - font: arbitrary line spacing. (#2945)
  - font: MergeMode: flags to select overwriting or not (this is now very easy with refactored ImFontAtlasBuildWithStbTruetype)
- - font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
+ - font: free the Alpha buffer if user only requested RGBA.
+!- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
  - font: for the purpose of RenderTextEllipsis(), it might be useful that CalcTextSizeA() can ignore the trailing padding?
  - font: a CalcTextHeight() helper could run faster than CalcTextSize().y
  - font: enforce monospace through ImFontConfig (for icons?) + create dual ImFont output from same input, reusing rasterized data but with different glyphs/AdvanceX
+ - font: finish CustomRectRegister() to allow mapping Unicode codepoint to custom texture data
+ - font: remove ID from CustomRect registration, it seems unnecessary!
  - font: make it easier to submit own bitmap font (same texture, another texture?). (#2127, #2575)
+ - font: PushFontSize API (#1018)
  - font: MemoryTTF taking ownership confusing/not obvious, maybe default should be opposite?
  - font: storing MinAdvanceX per font would allow us to skip calculating line width (under a threshold of character count) in loops looking for block width
+ - font/demo: add tools to show glyphs used by a text blob, display U16 value, list missing glyphs.
  - font/demo: demonstrate use of ImFontGlyphRangesBuilder.
+ - font/atlas: add a missing Glyphs.reserve()
+ - font/atlas: incremental updates
+ - font/atlas: dynamic font atlas to avoid baking huge ranges into bitmap and make scaling easier.
  - font/draw: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise
  - font/draw: need to be able to specify wrap start position.
  - font/draw: better reserve policy for large horizontal block of text (shouldn't reserve for all clipped lines). also see #3349.
@@ -285,6 +296,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - font: optimization: for monospace font (like the default one) we can trim IndexXAdvance as long as trailing value is == FallbackXAdvance (need to make sure TAB is still correct), would save on cache line.
  - font: add support for kerning, probably optional. A) perhaps default to (32..128)^2 matrix ~ 9K entries = 36KB, then hash for non-ascii?. B) or sparse lookup into per-char list?
  - font: add a simpler CalcTextSizeA() api? current one ok but not welcome if user needs to call it directly (without going through ImGui::CalcTextSize)
+ - font: fix AddRemapChar() to work before atlas  has been built.
  - font: (api breaking) remove "TTF" from symbol names. also because it now supports OTF.
  - font/opt: Considering storing standalone AdvanceX table as 16-bit fixed point integer?
  - font/opt: Glyph currently 40 bytes (2+9*4). Consider storing UV as 16-bits integer? (->32 bytes). X0/Y0/X1/Y1 as 16 fixed-point integers? Or X0/Y0 as float and X1/Y1 as fixed8_8?
@@ -295,7 +307,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - nav: expose wrap around flags/logic to allow e.g. grid based layout (pressing NavRight on the right-most element would go to the next row, etc.). see internal's NavMoveRequestTryWrapping().
  - nav: patterns to make it possible for arrows key to update selection (see JustMovedTo in range_select branch)
  - nav: restore/find nearest NavId when current one disappear (e.g. pressed a button that disappear, or perhaps auto restoring when current button change name)
- - nav: SetItemDefaultFocus() level of priority, so widgets like Selectable when inside a popup could claim a low-priority default focus on the first selected item
+ - nav: SetItemDefaultFocus() level of priority, so widget like Selectable when inside a popup could claim a low-priority default focus on the first selected iem
  - nav: holding space to repeat a button doesn't show button activated during hold.
  - nav: NavFlattened: init requests don't work properly on flattened siblings.
  - nav: NavFlattened: pageup/pagedown/home/end don't work properly on flattened siblings.
@@ -315,7 +327,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - nav/windowing: Resizing window will currently fail with certain types of resizing constraints/callback applied
  - focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622)
 
- - viewport: make it possible to have no main/hosting viewport (see #8268)
+ - viewport: make it possible to have no main/hosting viewport
  - viewport: We set ImGuiViewportFlags_NoFocusOnAppearing in a way that is required for GLFW/SDL binding, but could be handled better without
    on a custom e.g. Win32 bindings. It prevents newly dragged-out viewports from taking the focus, which makes ALT+F4 more ambiguous.
  - viewport: not focusing newly undocked viewport means clicking back on previous one doesn't bring OS window to front.
@@ -324,7 +336,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - viewport: store per-viewport/monitor DPI in .ini file so an application reload or main window changing DPI on reload can be properly patched for.
  - viewport: implicit/fallback Debug window can hog a zombie viewport (harmless, noisy?) > could at least clear out the reference on a per session basis?
  - viewport: need to clarify how to use GetMousePos() from a user point of view.
- - viewport: could apply monitor boundaries to cliprect to coarse clip things out of monitor? (#8698)
  - platform: glfw: no support for ImGuiBackendFlags_HasMouseHoveredViewport.
  - platform: sdl: no support for ImGuiBackendFlags_HasMouseHoveredViewport. maybe we could use SDL_GetMouseFocus() / SDL_WINDOW_MOUSE_FOCUS if imgui could fallback on its heuristic when NoInputs is set
  - platform: sdl: no refresh of monitor/display (SDL doesn't seem to have an event for it).
@@ -360,7 +371,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - backends: opengl: explicitly disable GL_STENCIL_TEST in bindings.
  - backends: vulkan: viewport: support for synchronized swapping of multiple swap chains.
  - backends: bgfx: https://gist.github.com/RichardGale/6e2b74bc42b3005e08397236e4be0fd0
- - backends: emscripten: with refactored examples, we could provide a direct imgui_impl_emscripten platform layer (see eg. https://github.com/floooh/sokol-samples/blob/master/html5/imgui-emsc.cc#L42)
+ - backends: emscriptem: with refactored examples, we could provide a direct imgui_impl_emscripten platform layer (see eg. https://github.com/floooh/sokol-samples/blob/master/html5/imgui-emsc.cc#L42)
 
  - bindings: ways to use clang ast dump to generate bindings or helpers for bindings? (e.g. clang++ -Xclang -ast-dump=json imgui.h) (--> use https://github.com/dearimgui/dear_bindings)
 

examples/example_allegro5/README.md

@@ -24,9 +24,9 @@ You may install Allegro using vcpkg:
 git clone https://github.com/Microsoft/vcpkg
 cd vcpkg
 bootstrap-vcpkg.bat
-vcpkg install allegro5 --triplet=x86-windows    ; for win32
-vcpkg install allegro5 --triplet=x64-windows    ; for win64
-vcpkg integrate install                         ; register include / libs in Visual Studio
+vcpkg install allegro5 --triplet=x86-windows	; for win32
+vcpkg install allegro5 --triplet=x64-windows	; for win64
+vcpkg integrate install						    ; register include / libs in Visual Studio
 ```
 
 Build:

examples/example_allegro5/main.cpp

@@ -53,16 +53,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     bool show_demo_window = true;

examples/example_android_opengl3/android/.gitignore

@@ -1,14 +1,12 @@
+.cxx
+.externalNativeBuild
 build/
 *.iml
-.gradle
+
 .idea
-.DS_Store
-/captures
-.externalNativeBuild
-.cxx
+.gradle
 local.properties
 
 # Android Studio puts a Gradle wrapper here, that we don't want:
 gradle/
-!gradle/libs.versions.toml
 gradlew*

examples/example_android_opengl3/android/app/build.gradle

@@ -1,16 +1,16 @@
-plugins {
-    alias(libs.plugins.android.application)
-    alias(libs.plugins.kotlin.android)
-}
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
 
 android {
-    namespace 'imgui.example.android'
-    compileSdk 36
+    compileSdkVersion 33
+    buildToolsVersion "33.0.2"
+    ndkVersion "25.2.9519653"
 
     defaultConfig {
         applicationId "imgui.example.android"
-        minSdk 24
-        targetSdk 36
+        namespace "imgui.example.android"
+        minSdkVersion 24
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
     }
@@ -21,17 +21,26 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt')
         }
     }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_11
         targetCompatibility JavaVersion.VERSION_11
     }
+
     kotlinOptions {
-        jvmTarget = '11'
+        jvmTarget="11"
     }
+
     externalNativeBuild {
         cmake {
-            path file('../../CMakeLists.txt')
+            path "../../CMakeLists.txt"
             version '3.22.1'
         }
     }
 }
+repositories {
+    mavenCentral()
+}
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}

examples/example_android_opengl3/android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:label="ImGuiExample"

examples/example_android_opengl3/android/build.gradle

@@ -1,5 +1,24 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-plugins {
-    alias(libs.plugins.android.application) apply false
-    alias(libs.plugins.kotlin.android) apply false
+buildscript {
+    ext.kotlin_version = '1.8.0'
+    repositories {
+        google()
+        mavenCentral()
+
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.4.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
 }

examples/example_android_opengl3/android/gradle/libs.versions.toml

@@ -1,8 +0,0 @@
-[versions]
-agp = "8.12.0"
-kotlin = "2.0.21"
-
-[plugins]
-android-application = { id = "com.android.application", version.ref = "agp" }
-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
-

examples/example_android_opengl3/android/settings.gradle

@@ -1,22 +1 @@
-pluginManagement {
-    repositories {
-        google {
-            content {
-                includeGroupByRegex("com\\.android.*")
-                includeGroupByRegex("com\\.google.*")
-                includeGroupByRegex("androidx.*")
-            }
-        }
-        mavenCentral()
-        gradlePluginPortal()
-    }
-}
-dependencyResolutionManagement {
-    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
-    repositories {
-        google()
-        mavenCentral()
-    }
-}
-
 include ':app'

examples/example_android_opengl3/main.cpp

@@ -154,7 +154,8 @@ void Init(struct android_app* app)
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Android: The TTF files have to be placed into the assets/ directory (android/app/src/main/assets), we use our GetAssetData() helper to retrieve them.
 
@@ -180,7 +181,7 @@ void Init(struct android_app* app)
     //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 15.0f);
     //IM_ASSERT(font != nullptr);
     //font_data_size = GetAssetData("ArialUni.ttf", &font_data);
-    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 18.0f);
+    //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size, 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Arbitrary scale-up

examples/example_apple_metal/Makefile

@@ -1,21 +0,0 @@
-# Makefile for example_apple_metal, for macOS only (**not iOS**)
-CXX = clang++
-EXE = example_apple_metal
-IMGUI_DIR = ../../
-SOURCES = main.mm
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_osx.mm $(IMGUI_DIR)/backends/imgui_impl_metal.mm
-
-CXXFLAGS = -std=c++11 -ObjC++ -fobjc-arc -Wall -Wextra -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-FRAMEWORKS = -framework AppKit -framework Metal -framework MetalKit -framework QuartzCore -framework GameController
-
-all: $(EXE)
-
-$(EXE): $(SOURCES)
-	$(CXX) $(CXXFLAGS) $^ $(FRAMEWORKS) -o $@
-
-run: all
-	./$(EXE)
-
-clean:
-	rm -f $(EXE) *.o

examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 54;
+	objectVersion = 48;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -222,8 +222,7 @@
 		8307E7B620E9F9C700473790 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				BuildIndependentTargetsInParallel = YES;
-				LastUpgradeCheck = 1530;
+				LastUpgradeCheck = 1200;
 				ORGANIZATIONNAME = "Warren Moore";
 				TargetAttributes = {
 					8307E7C320E9F9C900473790 = {
@@ -341,11 +340,9 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
-				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -399,11 +396,9 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -423,11 +418,8 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "$(SRCROOT)/iOS/Info-iOS.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/Frameworks",
-				);
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-ios";
 				PRODUCT_NAME = example_apple_metal;
 				SDKROOT = iphoneos;
@@ -443,11 +435,8 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "$(SRCROOT)/iOS/Info-iOS.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/Frameworks",
-				);
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-ios";
 				PRODUCT_NAME = example_apple_metal;
 				SDKROOT = iphoneos;
@@ -463,14 +452,10 @@
 				CODE_SIGN_IDENTITY = "-";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
-				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "$(SRCROOT)/macOS/Info-macOS.plist";
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/../Frameworks",
-				);
-				MACOSX_DEPLOYMENT_TARGET = "$(RECOMMENDED_MACOSX_DEPLOYMENT_TARGET)";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-macos";
 				PRODUCT_NAME = example_apple_metal;
 				SDKROOT = macosx;
@@ -484,14 +469,10 @@
 				CODE_SIGN_IDENTITY = "-";
 				CODE_SIGN_STYLE = Automatic;
 				COMBINE_HIDPI_IMAGES = YES;
-				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = "";
 				INFOPLIST_FILE = "$(SRCROOT)/macOS/Info-macOS.plist";
-				LD_RUNPATH_SEARCH_PATHS = (
-					"$(inherited)",
-					"@executable_path/../Frameworks",
-				);
-				MACOSX_DEPLOYMENT_TARGET = "$(RECOMMENDED_MACOSX_DEPLOYMENT_TARGET)";
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.imgui.example.apple-metal-macos";
 				PRODUCT_NAME = example_apple_metal;
 				SDKROOT = macosx;

examples/example_apple_metal/main.mm

@@ -82,16 +82,16 @@
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     return self;
@@ -139,7 +139,7 @@
     if (renderPassDescriptor == nil)
     {
         [commandBuffer commit];
-        return;
+		return;
     }
 
     // Start the Dear ImGui frame
@@ -202,7 +202,7 @@
     [renderEncoder popDebugGroup];
     [renderEncoder endEncoding];
 
-    // Present
+	// Present
     [commandBuffer presentDrawable:view.currentDrawable];
     [commandBuffer commit];
 
@@ -336,20 +336,9 @@
 
 #if TARGET_OS_OSX
 
-int main(int, const char**)
+int main(int argc, const char * argv[])
 {
-    @autoreleasepool
-    {
-        [NSApplication sharedApplication];
-        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
-
-        AppDelegate *appDelegate = [[AppDelegate alloc] init];   // creates window
-        [NSApp setDelegate:appDelegate];
-
-        [NSApp activateIgnoringOtherApps:YES];
-        [NSApp run];
-    }
-    return 0;
+    return NSApplicationMain(argc, argv);
 }
 
 #else

examples/example_apple_opengl2/Makefile

@@ -1,21 +0,0 @@
-# Makefile for example_apple_metal, for macOS only (**not iOS**)
-CXX = clang++
-EXE = example_apple_opengl2
-IMGUI_DIR = ../../
-SOURCES = main.mm
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_osx.mm $(IMGUI_DIR)/backends/imgui_impl_opengl2.cpp
-
-CXXFLAGS = -std=c++11 -ObjC++ -fobjc-arc -Wall -Wextra -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-FRAMEWORKS = -framework Cocoa -framework OpenGL -framework GameController
-
-all: $(EXE)
-
-$(EXE): $(SOURCES)
-	$(CXX) $(CXXFLAGS) $(SOURCES) -o $(EXE) $(FRAMEWORKS)
-
-run: all
-	./$(EXE)
-
-clean:
-	rm -f $(EXE) *.o

examples/example_apple_opengl2/example_apple_opengl2.xcodeproj/project.pbxproj

@@ -289,7 +289,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CODE_SIGN_STYLE = Automatic;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				USER_HEADER_SEARCH_PATHS = ../..;
 			};
@@ -299,7 +299,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CODE_SIGN_STYLE = Automatic;
-				MACOSX_DEPLOYMENT_TARGET = 10.13;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				USER_HEADER_SEARCH_PATHS = ../..;
 			};

examples/example_apple_opengl2/main.mm

@@ -6,8 +6,6 @@
 // - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
 // - Introduction, links and more at the top of imgui.cpp
 
-// FIXME: Multi-viewports is not yet functional in this example. May need backend rework/coordination.
-
 #import <Cocoa/Cocoa.h>
 #import <OpenGL/gl.h>
 #import <OpenGL/glu.h>
@@ -72,16 +70,16 @@
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 }
 

examples/example_glfw_metal/main.mm

@@ -52,16 +52,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Setup window

examples/example_glfw_opengl2/main.cpp

@@ -77,16 +77,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_glfw_opengl3/Makefile.emscripten

@@ -32,9 +32,8 @@ EMS =
 ##---------------------------------------------------------------------
 
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
-# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of ('-s USE_GLFW=3' in LDFLAGS) to get a better support for High DPI displays.
-EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
-LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
+EMS += -s DISABLE_EXCEPTION_CATCHING=1
+LDFLAGS += -s USE_GLFW=3 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
 
 # Build as single file (binary text encoded in .html file)
 #LDFLAGS += -sSINGLE_FILE

examples/example_glfw_opengl3/main.cpp

@@ -43,17 +43,11 @@ int main(int, char**)
 
     // Decide GL+GLSL versions
 #if defined(IMGUI_IMPL_OPENGL_ES2)
-    // GL ES 2.0 + GLSL 100 (WebGL 1.0)
+    // GL ES 2.0 + GLSL 100
     const char* glsl_version = "#version 100";
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
     glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
-#elif defined(IMGUI_IMPL_OPENGL_ES3)
-    // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-    const char* glsl_version = "#version 300 es";
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
-    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-    glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
 #elif defined(__APPLE__)
     // GL 3.2 + GLSL 150
     const char* glsl_version = "#version 150";
@@ -71,8 +65,7 @@ int main(int, char**)
 #endif
 
     // Create window with graphics context
-    float main_scale = ImGui_ImplGlfw_GetContentScaleForMonitor(glfwGetPrimaryMonitor()); // Valid on GLFW 3.3+ only
-    GLFWwindow* window = glfwCreateWindow((int)(1280 * main_scale), (int)(800 * main_scale), "Dear ImGui GLFW+OpenGL3 example", nullptr, nullptr);
+    GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+OpenGL3 example", nullptr, nullptr);
     if (window == nullptr)
         return 1;
     glfwMakeContextCurrent(window);
@@ -93,16 +86,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-#if GLFW_VERSION_MAJOR >= 3 && GLFW_VERSION_MINOR >= 3
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-#endif
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -120,17 +105,17 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_glfw_vulkan/CMakeLists.txt

@@ -15,9 +15,7 @@ set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DVK_PROTOTYPES")
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVK_PROTOTYPES")
 
 # GLFW
-if(NOT GLFW_DIR)
-   set(GLFW_DIR ../../../glfw) # Set this to point to an up-to-date GLFW repo
-endif()
+set(GLFW_DIR ../../../glfw) # Set this to point to an up-to-date GLFW repo
 option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" OFF)
 option(GLFW_BUILD_TESTS "Build the GLFW test programs" OFF)
 option(GLFW_BUILD_DOCS "Build the GLFW documentation" OFF)

examples/example_glfw_vulkan/Makefile

@@ -1,83 +0,0 @@
-#
-# Cross Platform Makefile
-# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
-#
-# You will need GLFW (http://www.glfw.org):
-# Linux:
-#   apt-get install libglfw-dev
-# Mac OS X:
-#   brew install glfw
-# MSYS2:
-#   pacman -S --noconfirm --needed mingw-w64-x86_64-toolchain mingw-w64-x86_64-glfw
-#
-
-#CXX = g++
-#CXX = clang++
-
-EXE = example_glfw_vulkan
-IMGUI_DIR = ../..
-SOURCES = main.cpp
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_vulkan.cpp
-OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
-UNAME_S := $(shell uname -s)
-LINUX_GL_LIBS = -lGL
-
-CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-CXXFLAGS += -g -Wall -Wformat
-LIBS =
-
-##---------------------------------------------------------------------
-## BUILD FLAGS PER PLATFORM
-##---------------------------------------------------------------------
-
-ifeq ($(UNAME_S), Linux) #LINUX
-	ECHO_MESSAGE = "Linux"
-	LIBS += $(LINUX_GL_LIBS) `pkg-config --static --libs glfw3 vulkan`
-
-	CXXFLAGS += `pkg-config --cflags glfw3 vulkan`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(UNAME_S), Darwin) #APPLE
-	ECHO_MESSAGE = "Mac OS X"
-	LIBS += -framework Cocoa -framework IOKit -framework CoreVideo
-	LIBS += `pkg-config --libs glfw3 vulkan`
-	LIBS += -L/usr/local/lib -L/opt/local/lib -L/opt/homebrew/lib
-	#LIBS += -lglfw3
-
-	LIBS += `pkg-config --cflags glfw3 vulkan`
-	CXXFLAGS += -I/usr/local/include -I/opt/local/include -I/opt/homebrew/include
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(OS), Windows_NT)
-	ECHO_MESSAGE = "MinGW"
-	LIBS += -lgdi32 -limm32
-	LIBS += `pkg-config --libs glfw3 vulkan`
-
-	CXXFLAGS += `pkg-config --cflags glfw3 vulkan`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-##---------------------------------------------------------------------
-## BUILD RULES
-##---------------------------------------------------------------------
-
-%.o:%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/backends/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-all: $(EXE)
-	@echo Build complete for $(ECHO_MESSAGE)
-
-$(EXE): $(OBJS)
-	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
-
-clean:
-	rm -f $(EXE) $(OBJS)

examples/example_glfw_vulkan/main.cpp

@@ -38,7 +38,6 @@
 //#define APP_USE_UNLIMITED_FRAME_RATE
 #ifdef _DEBUG
 #define APP_USE_VULKAN_DEBUG_REPORT
-static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
 #endif
 
 // Data
@@ -48,11 +47,12 @@ static VkPhysicalDevice         g_PhysicalDevice = VK_NULL_HANDLE;
 static VkDevice                 g_Device = VK_NULL_HANDLE;
 static uint32_t                 g_QueueFamily = (uint32_t)-1;
 static VkQueue                  g_Queue = VK_NULL_HANDLE;
+static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
 static VkPipelineCache          g_PipelineCache = VK_NULL_HANDLE;
 static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 
 static ImGui_ImplVulkanH_Window g_MainWindowData;
-static uint32_t                 g_MinImageCount = 2;
+static int                      g_MinImageCount = 2;
 static bool                     g_SwapChainRebuild = false;
 
 static void glfw_error_callback(int error, const char* description)
@@ -61,7 +61,7 @@ static void glfw_error_callback(int error, const char* description)
 }
 static void check_vk_result(VkResult err)
 {
-    if (err == VK_SUCCESS)
+    if (err == 0)
         return;
     fprintf(stderr, "[vulkan] Error: VkResult = %d\n", err);
     if (err < 0)
@@ -85,6 +85,35 @@ static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properti
     return false;
 }
 
+static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
+{
+    uint32_t gpu_count;
+    VkResult err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, nullptr);
+    check_vk_result(err);
+    IM_ASSERT(gpu_count > 0);
+
+    ImVector<VkPhysicalDevice> gpus;
+    gpus.resize(gpu_count);
+    err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus.Data);
+    check_vk_result(err);
+
+    // If a number >1 of GPUs got reported, find discrete GPU if present, or use first one available. This covers
+    // most common cases (multi-gpu/integrated+dedicated graphics). Handling more complicated setups (multiple
+    // dedicated GPUs) is out of scope of this sample.
+    for (VkPhysicalDevice& device : gpus)
+    {
+        VkPhysicalDeviceProperties properties;
+        vkGetPhysicalDeviceProperties(device, &properties);
+        if (properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
+            return device;
+    }
+
+    // Use first GPU (Integrated) is a Discrete one is not available.
+    if (gpu_count > 0)
+        return gpus[0];
+    return VK_NULL_HANDLE;
+}
+
 static void SetupVulkan(ImVector<const char*> instance_extensions)
 {
     VkResult err;
@@ -148,12 +177,23 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Select Physical Device (GPU)
-    g_PhysicalDevice = ImGui_ImplVulkanH_SelectPhysicalDevice(g_Instance);
-    IM_ASSERT(g_PhysicalDevice != VK_NULL_HANDLE);
+    g_PhysicalDevice = SetupVulkan_SelectPhysicalDevice();
 
     // Select graphics queue family
-    g_QueueFamily = ImGui_ImplVulkanH_SelectQueueFamilyIndex(g_PhysicalDevice);
-    IM_ASSERT(g_QueueFamily != (uint32_t)-1);
+    {
+        uint32_t count;
+        vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, nullptr);
+        VkQueueFamilyProperties* queues = (VkQueueFamilyProperties*)malloc(sizeof(VkQueueFamilyProperties) * count);
+        vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, queues);
+        for (uint32_t i = 0; i < count; i++)
+            if (queues[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)
+            {
+                g_QueueFamily = i;
+                break;
+            }
+        free(queues);
+        IM_ASSERT(g_QueueFamily != (uint32_t)-1);
+    }
 
     // Create Logical Device (with 1 queue)
     {
@@ -189,18 +229,17 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
+    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
+    // If you wish to load e.g. additional textures you may need to alter pools sizes.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 0;
-        for (VkDescriptorPoolSize& pool_size : pool_sizes)
-            pool_info.maxSets += pool_size.descriptorCount;
+        pool_info.maxSets = 1;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
@@ -263,15 +302,17 @@ static void CleanupVulkanWindow()
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
 {
+    VkResult err;
+
     VkSemaphore image_acquired_semaphore  = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore;
     VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
-    VkResult err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
+    err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
     if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
+    {
         g_SwapChainRebuild = true;
-    if (err == VK_ERROR_OUT_OF_DATE_KHR)
         return;
-    if (err != VK_SUBOPTIMAL_KHR)
-        check_vk_result(err);
+    }
+    check_vk_result(err);
 
     ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
     {
@@ -340,11 +381,11 @@ static void FramePresent(ImGui_ImplVulkanH_Window* wd)
     info.pImageIndices = &wd->FrameIndex;
     VkResult err = vkQueuePresentKHR(g_Queue, &info);
     if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
+    {
         g_SwapChainRebuild = true;
-    if (err == VK_ERROR_OUT_OF_DATE_KHR)
         return;
-    if (err != VK_SUBOPTIMAL_KHR)
-        check_vk_result(err);
+    }
+    check_vk_result(err);
     wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
 }
 
@@ -408,7 +449,6 @@ int main(int, char**)
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForVulkan(window, true);
     ImGui_ImplVulkan_InitInfo init_info = {};
-    //init_info.ApiVersion = VK_API_VERSION_1_3;              // Pass in your value of VkApplicationInfo::apiVersion, otherwise will default to header version.
     init_info.Instance = g_Instance;
     init_info.PhysicalDevice = g_PhysicalDevice;
     init_info.Device = g_Device;
@@ -429,16 +469,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_glfw_wgpu/Makefile.emscripten

@@ -32,9 +32,8 @@ EMS =
 ##---------------------------------------------------------------------
 
 # ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
-# Note: For glfw, we use emscripten-glfw port (contrib.glfw3) instead of (-s USE_GLFW=3) to get a better support for High DPI displays.
-EMS += -s DISABLE_EXCEPTION_CATCHING=1 --use-port=contrib.glfw3
-LDFLAGS += -s USE_WEBGPU=1
+EMS += -s DISABLE_EXCEPTION_CATCHING=1
+LDFLAGS += -s USE_GLFW=3 -s USE_WEBGPU=1
 LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
 
 # Build as single file (binary text encoded in .html file)

examples/example_glfw_wgpu/main.cpp

@@ -115,19 +115,19 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Emscripten allows preloading a file or folder to be accessible at runtime. See Makefile for details.
     //io.Fonts->AddFontDefault();
-    //style.FontSizeBase = 20.0f;
 #ifndef IMGUI_DISABLE_FILE_FUNCTIONS
-    //io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf");
-    //io.Fonts->AddFontFromFileTTF("fonts/ProggyTiny.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf", 15.0f);
+    //io.Fonts->AddFontFromFileTTF("fonts/ProggyTiny.ttf", 10.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 #endif
 

examples/example_glut_opengl2/main.cpp

@@ -83,16 +83,16 @@ int main(int argc, char** argv)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Main loop

examples/example_null/main.cpp

@@ -11,10 +11,9 @@ int main(int, char**)
     ImGuiIO& io = ImGui::GetIO();
 
     // Build atlas
-    //unsigned char* tex_pixels = nullptr;
-    //int tex_w, tex_h;
-    //io.Fonts->GetTexDataAsRGBA32(&tex_pixels, &tex_w, &tex_h);
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;
+    unsigned char* tex_pixels = nullptr;
+    int tex_w, tex_h;
+    io.Fonts->GetTexDataAsRGBA32(&tex_pixels, &tex_w, &tex_h);
 
     for (int n = 0; n < 20; n++)
     {

examples/example_sdl2_directx11/main.cpp

@@ -33,9 +33,6 @@ int main(int, char**)
     // Setup SDL
     // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems,
     // depending on whether SDL_INIT_GAMECONTROLLER is enabled or disabled.. updating to the latest version of SDL is recommended!)
-#ifdef _WIN32
-    ::SetProcessDPIAware();
-#endif
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {
         printf("Error: %s\n", SDL_GetError());
@@ -48,9 +45,8 @@ int main(int, char**)
 #endif
 
     // Setup window
-    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+DirectX11 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+DirectX11 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -84,14 +80,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -106,16 +96,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_sdl2_metal/main.mm

@@ -43,16 +43,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Setup SDL

examples/example_sdl2_opengl2/main.cpp

@@ -17,17 +17,11 @@
 #include <stdio.h>
 #include <SDL.h>
 #include <SDL_opengl.h>
-#ifdef _WIN32
-#include <windows.h>        // SetProcessDPIAware()
-#endif
 
 // Main code
 int main(int, char**)
 {
     // Setup SDL
-#ifdef _WIN32
-    ::SetProcessDPIAware();
-#endif
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {
         printf("Error: %s\n", SDL_GetError());
@@ -45,9 +39,8 @@ int main(int, char**)
     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
-    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -73,14 +66,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -95,16 +82,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_sdl2_opengl3/main.cpp

@@ -17,9 +17,6 @@
 #else
 #include <SDL_opengl.h>
 #endif
-#ifdef _WIN32
-#include <windows.h>        // SetProcessDPIAware()
-#endif
 
 // This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
 #ifdef __EMSCRIPTEN__
@@ -30,9 +27,6 @@
 int main(int, char**)
 {
     // Setup SDL
-#ifdef _WIN32
-    ::SetProcessDPIAware();
-#endif
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {
         printf("Error: %s\n", SDL_GetError());
@@ -41,19 +35,12 @@ int main(int, char**)
 
     // Decide GL+GLSL versions
 #if defined(IMGUI_IMPL_OPENGL_ES2)
-    // GL ES 2.0 + GLSL 100 (WebGL 1.0)
+    // GL ES 2.0 + GLSL 100
     const char* glsl_version = "#version 100";
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
-#elif defined(IMGUI_IMPL_OPENGL_ES3)
-    // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-    const char* glsl_version = "#version 300 es";
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 #elif defined(__APPLE__)
     // GL 3.2 Core + GLSL 150
     const char* glsl_version = "#version 150";
@@ -79,9 +66,8 @@ int main(int, char**)
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
-    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -89,12 +75,6 @@ int main(int, char**)
     }
 
     SDL_GLContext gl_context = SDL_GL_CreateContext(window);
-    if (gl_context == nullptr)
-    {
-        printf("Error: SDL_GL_CreateContext(): %s\n", SDL_GetError());
-        return -1;
-    }
-
     SDL_GL_MakeCurrent(window, gl_context);
     SDL_GL_SetSwapInterval(1); // Enable vsync
 
@@ -113,14 +93,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -135,17 +109,17 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_sdl2_sdlrenderer2/main.cpp

@@ -15,9 +15,6 @@
 #include "imgui_impl_sdlrenderer2.h"
 #include <stdio.h>
 #include <SDL.h>
-#ifdef _WIN32
-#include <windows.h>        // SetProcessDPIAware()
-#endif
 
 #if !SDL_VERSION_ATLEAST(2,0,17)
 #error This backend requires SDL 2.0.17+ because of SDL_RenderGeometry() function
@@ -27,9 +24,6 @@
 int main(int, char**)
 {
     // Setup SDL
-#ifdef _WIN32
-    ::SetProcessDPIAware();
-#endif
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {
         printf("Error: %s\n", SDL_GetError());
@@ -42,9 +36,8 @@ int main(int, char**)
 #endif
 
     // Create window with SDL_Renderer graphics context
-    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -72,13 +65,6 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForSDLRenderer(window, renderer);
     ImGui_ImplSDLRenderer2_Init(renderer);
@@ -87,16 +73,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_sdl2_vulkan/Makefile

@@ -1,80 +0,0 @@
-#
-# Cross Platform Makefile
-# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
-#
-# You will need SDL2 (http://www.libsdl.org):
-# Linux:
-#   apt-get install libsdl2-dev
-# Mac OS X:
-#   brew install sdl2
-# MSYS2:
-#   pacman -S mingw-w64-i686-SDL2
-#
-
-#CXX = g++
-#CXX = clang++
-
-EXE = example_sdl2_vulkan
-IMGUI_DIR = ../..
-SOURCES = main.cpp
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_vulkan.cpp
-OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
-UNAME_S := $(shell uname -s)
-
-CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-CXXFLAGS += -g -Wall -Wformat
-LIBS =
-
-##---------------------------------------------------------------------
-## BUILD FLAGS PER PLATFORM
-##---------------------------------------------------------------------
-
-ifeq ($(UNAME_S), Linux) #LINUX
-	ECHO_MESSAGE = "Linux"
-	LIBS += -lGL -ldl 
-	LIBS += `pkg-config --libs sdl2 vulkan`
-	CXXFLAGS += `pkg-config --cflags sdl2 vulkan`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(UNAME_S), Darwin) #APPLE
-	ECHO_MESSAGE = "Mac OS X"
-	LIBS += -framework Cocoa -framework IOKit -framework CoreVideo
-	LIBS += `pkg-config --libs sdl2 vulkan`
-	LIBS += -L/usr/local/lib -L/opt/local/lib
-
-	CXXFLAGS += `pkg-config --cflags sdl2 vulkan`
-	CXXFLAGS += -I/usr/local/include -I/opt/local/include
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(OS), Windows_NT)
-	ECHO_MESSAGE = "MinGW"
-	LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl2 vulkan`
-
-	CXXFLAGS += `pkg-config --cflags sdl2 vulkan`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-##---------------------------------------------------------------------
-## BUILD RULES
-##---------------------------------------------------------------------
-
-%.o:%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/backends/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-all: $(EXE)
-	@echo Build complete for $(ECHO_MESSAGE)
-
-$(EXE): $(OBJS)
-	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
-
-clean:
-	rm -f $(EXE) $(OBJS)

examples/example_sdl2_vulkan/main.cpp

@@ -20,9 +20,6 @@
 #include <stdlib.h>         // abort
 #include <SDL.h>
 #include <SDL_vulkan.h>
-#ifdef _WIN32
-#include <windows.h>        // SetProcessDPIAware()
-#endif
 
 // Volk headers
 #ifdef IMGUI_IMPL_VULKAN_USE_VOLK
@@ -33,7 +30,6 @@
 //#define APP_USE_UNLIMITED_FRAME_RATE
 #ifdef _DEBUG
 #define APP_USE_VULKAN_DEBUG_REPORT
-static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
 #endif
 
 // Data
@@ -43,6 +39,7 @@ static VkPhysicalDevice         g_PhysicalDevice = VK_NULL_HANDLE;
 static VkDevice                 g_Device = VK_NULL_HANDLE;
 static uint32_t                 g_QueueFamily = (uint32_t)-1;
 static VkQueue                  g_Queue = VK_NULL_HANDLE;
+static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
 static VkPipelineCache          g_PipelineCache = VK_NULL_HANDLE;
 static VkDescriptorPool         g_DescriptorPool = VK_NULL_HANDLE;
 
@@ -52,7 +49,7 @@ static bool                     g_SwapChainRebuild = false;
 
 static void check_vk_result(VkResult err)
 {
-    if (err == VK_SUCCESS)
+    if (err == 0)
         return;
     fprintf(stderr, "[vulkan] Error: VkResult = %d\n", err);
     if (err < 0)
@@ -76,6 +73,35 @@ static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properti
     return false;
 }
 
+static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
+{
+    uint32_t gpu_count;
+    VkResult err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, nullptr);
+    check_vk_result(err);
+    IM_ASSERT(gpu_count > 0);
+
+    ImVector<VkPhysicalDevice> gpus;
+    gpus.resize(gpu_count);
+    err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus.Data);
+    check_vk_result(err);
+
+    // If a number >1 of GPUs got reported, find discrete GPU if present, or use first one available. This covers
+    // most common cases (multi-gpu/integrated+dedicated graphics). Handling more complicated setups (multiple
+    // dedicated GPUs) is out of scope of this sample.
+    for (VkPhysicalDevice& device : gpus)
+    {
+        VkPhysicalDeviceProperties properties;
+        vkGetPhysicalDeviceProperties(device, &properties);
+        if (properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
+            return device;
+    }
+
+    // Use first GPU (Integrated) is a Discrete one is not available.
+    if (gpu_count > 0)
+        return gpus[0];
+    return VK_NULL_HANDLE;
+}
+
 static void SetupVulkan(ImVector<const char*> instance_extensions)
 {
     VkResult err;
@@ -139,12 +165,23 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Select Physical Device (GPU)
-    g_PhysicalDevice = ImGui_ImplVulkanH_SelectPhysicalDevice(g_Instance);
-    IM_ASSERT(g_PhysicalDevice != VK_NULL_HANDLE);
+    g_PhysicalDevice = SetupVulkan_SelectPhysicalDevice();
 
     // Select graphics queue family
-    g_QueueFamily = ImGui_ImplVulkanH_SelectQueueFamilyIndex(g_PhysicalDevice);
-    IM_ASSERT(g_QueueFamily != (uint32_t)-1);
+    {
+        uint32_t count;
+        vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, nullptr);
+        VkQueueFamilyProperties* queues = (VkQueueFamilyProperties*)malloc(sizeof(VkQueueFamilyProperties) * count);
+        vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, queues);
+        for (uint32_t i = 0; i < count; i++)
+            if (queues[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)
+            {
+                g_QueueFamily = i;
+                break;
+            }
+        free(queues);
+        IM_ASSERT(g_QueueFamily != (uint32_t)-1);
+    }
 
     // Create Logical Device (with 1 queue)
     {
@@ -180,18 +217,17 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     }
 
     // Create Descriptor Pool
-    // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets.
+    // The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
+    // If you wish to load e.g. additional textures you may need to alter pools sizes.
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1 },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
         pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = 0;
-        for (VkDescriptorPoolSize& pool_size : pool_sizes)
-            pool_info.maxSets += pool_size.descriptorCount;
+        pool_info.maxSets = 1;
         pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes);
         pool_info.pPoolSizes = pool_sizes;
         err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool);
@@ -220,7 +256,7 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
     wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
 
     // Select Present Mode
-#ifdef APP_USE_UNLIMITED_FRAME_RATE
+#ifdef APP_UNLIMITED_FRAME_RATE
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
 #else
     VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR };
@@ -254,15 +290,17 @@ static void CleanupVulkanWindow()
 
 static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
 {
+    VkResult err;
+
     VkSemaphore image_acquired_semaphore  = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore;
     VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
-    VkResult err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
+    err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
     if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
+    {
         g_SwapChainRebuild = true;
-    if (err == VK_ERROR_OUT_OF_DATE_KHR)
         return;
-    if (err != VK_SUBOPTIMAL_KHR)
-        check_vk_result(err);
+    }
+    check_vk_result(err);
 
     ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
     {
@@ -331,11 +369,11 @@ static void FramePresent(ImGui_ImplVulkanH_Window* wd)
     info.pImageIndices = &wd->FrameIndex;
     VkResult err = vkQueuePresentKHR(g_Queue, &info);
     if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
+    {
         g_SwapChainRebuild = true;
-    if (err == VK_ERROR_OUT_OF_DATE_KHR)
         return;
-    if (err != VK_SUBOPTIMAL_KHR)
-        check_vk_result(err);
+    }
+    check_vk_result(err);
     wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
 }
 
@@ -343,9 +381,6 @@ static void FramePresent(ImGui_ImplVulkanH_Window* wd)
 int main(int, char**)
 {
     // Setup SDL
-#ifdef _WIN32
-    ::SetProcessDPIAware();
-#endif
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {
         printf("Error: %s\n", SDL_GetError());
@@ -358,9 +393,8 @@ int main(int, char**)
 #endif
 
     // Create window with Vulkan graphics context
-    float main_scale = ImGui_ImplSDL2_GetContentScaleForDisplay(0);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
@@ -404,14 +438,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -421,7 +449,6 @@ int main(int, char**)
     // Setup Platform/Renderer backends
     ImGui_ImplSDL2_InitForVulkan(window);
     ImGui_ImplVulkan_InitInfo init_info = {};
-    //init_info.ApiVersion = VK_API_VERSION_1_3;              // Pass in your value of VkApplicationInfo::apiVersion, otherwise will default to header version.
     init_info.Instance = g_Instance;
     init_info.PhysicalDevice = g_PhysicalDevice;
     init_info.Device = g_Device;
@@ -442,16 +469,16 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state

examples/example_sdl3_metal/Makefile

@@ -1,48 +0,0 @@
-#
-# You will need SDL3 (http://www.libsdl.org):
-#   brew install sdl3
-#
-
-#CXX = g++
-#CXX = clang++
-
-EXE = example_sdl3_metal
-IMGUI_DIR = ../..
-SOURCES = main.mm
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl3.cpp $(IMGUI_DIR)/backends/imgui_impl_metal.mm
-OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
-
-LIBS = -framework Metal -framework MetalKit -framework Cocoa -framework IOKit -framework CoreVideo -framework QuartzCore
-LIBS += `pkg-config --libs sdl3`
-LIBS += -L/usr/local/lib -L/opt/local/lib
-
-CXXFLAGS += `pkg-config --cflags sdl3`
-CXXFLAGS += -I/usr/local/include -I/opt/local/include
-CXXFLAGS += -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-CXXFLAGS += -Wall -Wformat
-CFLAGS = $(CXXFLAGS)
-
-%.o:%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/backends/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:%.mm
-	$(CXX) $(CXXFLAGS) -ObjC++ -fobjc-weak -fobjc-arc -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/backends/%.mm
-	$(CXX) $(CXXFLAGS) -ObjC++ -fobjc-weak -fobjc-arc -c -o $@ $<
-
-all: $(EXE)
-	@echo Build complete
-
-$(EXE): $(OBJS)
-	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
-
-clean:
-	rm -f $(EXE) $(OBJS)

examples/example_sdl3_metal/main.mm

@@ -1,208 +0,0 @@
-// Dear ImGui: standalone example application for SDL3 + Metal
-// (SDL is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
-
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-#include "imgui.h"
-#include "imgui_impl_sdl3.h"
-#include "imgui_impl_metal.h"
-#include <stdio.h>          // printf, fprintf
-#include <SDL3/SDL.h>
-
-#import <Metal/Metal.h>
-#import <QuartzCore/QuartzCore.h>
-
-// Main code
-int main(int, char**)
-{
-    // Setup SDL
-    // [If using SDL_MAIN_USE_CALLBACKS: all code below until the main loop starts would likely be your SDL_AppInit() function]
-    if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD))
-    {
-        printf("Error: SDL_Init(): %s\n", SDL_GetError());
-        return -1;
-    }
-
-    // Create SDL window graphics context
-    float main_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
-    SDL_WindowFlags window_flags = SDL_WINDOW_METAL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+Metal example", (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
-    if (window == nullptr)
-    {
-        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
-        return -1;
-    }
-    SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
-    SDL_ShowWindow(window);
-
-    // Create Metal device _before_ creating the view/layer
-    id<MTLDevice> metalDevice = MTLCreateSystemDefaultDevice(); 
-    if (!metalDevice)
-    {
-        printf("Error: failed to create Metal device.\n");
-        SDL_DestroyWindow(window);
-        SDL_Quit();
-        return -1;
-    }
-    SDL_MetalView view = SDL_Metal_CreateView(window);
-    CAMetalLayer* layer = (__bridge CAMetalLayer*)SDL_Metal_GetLayer(view);
-    layer.device = metalDevice;
-    layer.pixelFormat = MTLPixelFormatBGRA8Unorm;
-
-    id<MTLCommandQueue> commandQueue = [layer.device newCommandQueue];
-    MTLRenderPassDescriptor* renderPassDescriptor = [MTLRenderPassDescriptor new];
-
-    // Setup Dear ImGui context
-    IMGUI_CHECKVERSION();
-    ImGui::CreateContext();
-    ImGuiIO& io = ImGui::GetIO(); (void)io;
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;     // Enable Keyboard Controls
-    io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;      // Enable Gamepad Controls
-
-    // Setup Dear ImGui style
-    ImGui::StyleColorsDark();
-    //ImGui::StyleColorsLight();
-
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-
-    // Setup Platform/Renderer backends
-    ImGui_ImplMetal_Init(layer.device);
-    ImGui_ImplSDL3_InitForMetal(window);
-
-    // Load Fonts
-    // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
-    // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
-    // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
-    // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
-    // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
-    //style.FontSizeBase = 20.0f;
-    //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
-    //IM_ASSERT(font != nullptr);
-
-    // Our state
-    bool show_demo_window = true;
-    bool show_another_window = false;
-    float clear_color[4] = { 0.45f, 0.55f, 0.60f, 1.00f };
-
-    // Main loop
-    bool done = false;
-    while (!done)
-    {
-        @autoreleasepool
-        {
-            // Poll and handle events (inputs, window resize, etc.)
-            // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
-            // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
-            // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
-            // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-            // [If using SDL_MAIN_USE_CALLBACKS: call ImGui_ImplSDL3_ProcessEvent() from your SDL_AppEvent() function]
-            SDL_Event event;
-            while (SDL_PollEvent(&event))
-            {
-                ImGui_ImplSDL3_ProcessEvent(&event);
-                if (event.type == SDL_EVENT_QUIT)
-                    done = true;
-                if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
-                    done = true;
-            }
-
-            // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppIterate() function]
-            if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
-            {
-                SDL_Delay(10);
-                continue;
-            }
-
-            int width, height;
-            SDL_GetWindowSizeInPixels(window, &width, &height);
-        
-            layer.drawableSize = CGSizeMake(width, height);
-            id<CAMetalDrawable> drawable = [layer nextDrawable];
-
-            id<MTLCommandBuffer> commandBuffer = [commandQueue commandBuffer];
-            renderPassDescriptor.colorAttachments[0].clearColor = MTLClearColorMake(clear_color[0] * clear_color[3], clear_color[1] * clear_color[3], clear_color[2] * clear_color[3], clear_color[3]);
-            renderPassDescriptor.colorAttachments[0].texture = drawable.texture;
-            renderPassDescriptor.colorAttachments[0].loadAction = MTLLoadActionClear;
-            renderPassDescriptor.colorAttachments[0].storeAction = MTLStoreActionStore;
-            id <MTLRenderCommandEncoder> renderEncoder = [commandBuffer renderCommandEncoderWithDescriptor:renderPassDescriptor];
-            [renderEncoder pushDebugGroup:@"ImGui demo"];
-
-            // Start the Dear ImGui frame
-            ImGui_ImplMetal_NewFrame(renderPassDescriptor);
-            ImGui_ImplSDL3_NewFrame();
-            ImGui::NewFrame();
-
-            // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
-            if (show_demo_window)
-                ImGui::ShowDemoWindow(&show_demo_window);
-
-            // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
-            {
-                static float f = 0.0f;
-                static int counter = 0;
-
-                ImGui::Begin("Hello, world!");                          // Create a window called "Hello, world!" and append into it.
-
-                ImGui::Text("This is some useful text.");               // Display some text (you can use a format strings too)
-                ImGui::Checkbox("Demo Window", &show_demo_window);      // Edit bools storing our window open/close state
-                ImGui::Checkbox("Another Window", &show_another_window);
-
-                ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float using a slider from 0.0f to 1.0f
-                ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
-
-                if (ImGui::Button("Button"))                            // Buttons return true when clicked (most widgets return true when edited/activated)
-                    counter++;
-                ImGui::SameLine();
-                ImGui::Text("counter = %d", counter);
-
-                ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
-                ImGui::End();
-            }
-
-            // 3. Show another simple window.
-            if (show_another_window)
-            {
-                ImGui::Begin("Another Window", &show_another_window);   // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
-                ImGui::Text("Hello from another window!");
-                if (ImGui::Button("Close Me"))
-                    show_another_window = false;
-                ImGui::End();
-            }
-
-            // Rendering
-            ImGui::Render();
-            ImDrawData* draw_data = ImGui::GetDrawData();
-            ImGui_ImplMetal_RenderDrawData(draw_data, commandBuffer, renderEncoder);
-
-            [renderEncoder popDebugGroup];
-            [renderEncoder endEncoding];
-
-            [commandBuffer presentDrawable:drawable];
-            [commandBuffer commit];
-        }
-    }
-
-    // Cleanup
-    // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppQuit() function]
-    ImGui_ImplMetal_Shutdown();
-    ImGui_ImplSDL3_Shutdown();
-    ImGui::DestroyContext();
-
-    SDL_DestroyWindow(window);
-    SDL_Quit();
-
-    return 0;
-}

examples/example_sdl3_opengl3/Makefile

@@ -45,21 +45,20 @@ endif
 
 ifeq ($(UNAME_S), Darwin) #APPLE
 	ECHO_MESSAGE = "Mac OS X"
-	LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo
-	LIBS += `pkg-config --libs sdl3`
+	LIBS += -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo `sdl3-config --libs`
 	LIBS += -L/usr/local/lib -L/opt/local/lib
 
-	CXXFLAGS += `pkg-config --cflags sdl3`
+	CXXFLAGS += `pkg-config sdl3 --cflags`
 	CXXFLAGS += -I/usr/local/include -I/opt/local/include
 	CFLAGS = $(CXXFLAGS)
 endif
 
 ifeq ($(OS), Windows_NT)
-	ECHO_MESSAGE = "MinGW"
-	LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl3`
+    ECHO_MESSAGE = "MinGW"
+    LIBS += -lgdi32 -lopengl32 -limm32 `pkg-config --static --libs sdl3`
 
-	CXXFLAGS += `pkg-config --cflags sdl3`
-	CFLAGS = $(CXXFLAGS)
+    CXXFLAGS += `pkg-config --cflags sdl3`
+    CFLAGS = $(CXXFLAGS)
 endif
 
 ##---------------------------------------------------------------------

examples/example_sdl3_opengl3/main.cpp

@@ -18,6 +18,7 @@
 #include <SDL3/SDL_opengl.h>
 #endif
 
+// This example doesn't compile with Emscripten yet! Awaiting SDL3 support.
 #ifdef __EMSCRIPTEN__
 #include "../libs/emscripten/emscripten_mainloop_stub.h"
 #endif
@@ -26,7 +27,6 @@
 int main(int, char**)
 {
     // Setup SDL
-    // [If using SDL_MAIN_USE_CALLBACKS: all code below until the main loop starts would likely be your SDL_AppInit() function]
     if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD))
     {
         printf("Error: SDL_Init(): %s\n", SDL_GetError());
@@ -35,19 +35,12 @@ int main(int, char**)
 
     // Decide GL+GLSL versions
 #if defined(IMGUI_IMPL_OPENGL_ES2)
-    // GL ES 2.0 + GLSL 100 (WebGL 1.0)
+    // GL ES 2.0 + GLSL 100
     const char* glsl_version = "#version 100";
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
-#elif defined(IMGUI_IMPL_OPENGL_ES3)
-    // GL ES 3.0 + GLSL 300 es (WebGL 2.0)
-    const char* glsl_version = "#version 300 es";
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
-    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 #elif defined(__APPLE__)
     // GL 3.2 Core + GLSL 150
     const char* glsl_version = "#version 150";
@@ -68,24 +61,17 @@ int main(int, char**)
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
-    float main_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
-    SDL_WindowFlags window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN | SDL_WINDOW_HIGH_PIXEL_DENSITY;
-    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+OpenGL3 example", (int)(1280 * main_scale), (int)(720 * main_scale), window_flags);
+    Uint32 window_flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_HIDDEN;
+    SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL3+OpenGL3 example", 1280, 720, window_flags);
     if (window == nullptr)
     {
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
         return -1;
     }
+    SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
     SDL_GLContext gl_context = SDL_GL_CreateContext(window);
-    if (gl_context == nullptr)
-    {
-        printf("Error: SDL_GL_CreateContext(): %s\n", SDL_GetError());
-        return -1;
-    }
-
     SDL_GL_MakeCurrent(window, gl_context);
     SDL_GL_SetSwapInterval(1); // Enable vsync
-    SDL_SetWindowPosition(window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
     SDL_ShowWindow(window);
 
     // Setup Dear ImGui context
@@ -103,14 +89,8 @@ int main(int, char**)
     ImGui::StyleColorsDark();
     //ImGui::StyleColorsLight();
 
-    // Setup scaling
-    ImGuiStyle& style = ImGui::GetStyle();
-    style.ScaleAllSizes(main_scale);        // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
-    style.FontScaleDpi = main_scale;        // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
-    io.ConfigDpiScaleFonts = true;          // [Experimental] Automatically overwrite style.FontScaleDpi in Begin() when Monitor DPI changes. This will scale fonts but _NOT_ scale sizes/padding for now.
-    io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
-
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
+    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;
@@ -125,17 +105,17 @@ int main(int, char**)
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
     // - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
+    // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
     // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
-    // - Read 'docs/FONTS.md' for more instructions and details. If you like the default font but want it to scale better, consider using the 'ProggyVector' from the same author!
+    // - Read 'docs/FONTS.md' for more instructions and details.
     // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
     // - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
-    //style.FontSizeBase = 20.0f;
     //io.Fonts->AddFontDefault();
-    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf");
-    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf");
-    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf");
+    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
+    //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
+    //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
     //IM_ASSERT(font != nullptr);
 
     // Our state
@@ -159,7 +139,6 @@ int main(int, char**)
         // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
         // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
         // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
-        // [If using SDL_MAIN_USE_CALLBACKS: call ImGui_ImplSDL3_ProcessEvent() from your SDL_AppEvent() function]
         SDL_Event event;
         while (SDL_PollEvent(&event))
         {
@@ -169,8 +148,6 @@ int main(int, char**)
             if (event.type == SDL_EVENT_WINDOW_CLOSE_REQUESTED && event.window.windowID == SDL_GetWindowID(window))
                 done = true;
         }
-
-        // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppIterate() function]
         if (SDL_GetWindowFlags(window) & SDL_WINDOW_MINIMIZED)
         {
             SDL_Delay(10);
@@ -245,7 +222,6 @@ int main(int, char**)
 #endif
 
     // Cleanup
-    // [If using SDL_MAIN_USE_CALLBACKS: all code below would likely be your SDL_AppQuit() function]
     ImGui_ImplOpenGL3_Shutdown();
     ImGui_ImplSDL3_Shutdown();
     ImGui::DestroyContext();

examples/example_sdl3_sdlgpu3/Makefile

@@ -1,73 +0,0 @@
-#
-# Cross Platform Makefile
-# Compatible with MSYS2/MINGW, Ubuntu 14.04.1 and Mac OS X
-#
-# You will need SDL3 (http://www.libsdl.org) which is still unreleased/unpackaged.
-
-#CXX = g++
-#CXX = clang++
-
-EXE = example_sdl3_sdlgpu3
-IMGUI_DIR = ../..
-SOURCES = main.cpp
-SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl3.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlgpu3.cpp
-OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
-UNAME_S := $(shell uname -s)
-
-CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
-CXXFLAGS += -g -Wall -Wformat
-LIBS =
-
-
-##---------------------------------------------------------------------
-## BUILD FLAGS PER PLATFORM
-##---------------------------------------------------------------------
-
-ifeq ($(UNAME_S), Linux) #LINUX
-	ECHO_MESSAGE = "Linux"
-	LIBS += -ldl `pkg-config sdl3 --libs`
-
-	CXXFLAGS += `pkg-config sdl3 --cflags`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(UNAME_S), Darwin) #APPLE
-	ECHO_MESSAGE = "Mac OS X"
-	LIBS += -framework Cocoa -framework IOKit -framework CoreVideo `pkg-config --libs sdl3`
-	LIBS += -L/usr/local/lib -L/opt/local/lib
-
-	CXXFLAGS += `pkg-config sdl3 --cflags`
-	CXXFLAGS += -I/usr/local/include -I/opt/local/include
-	CFLAGS = $(CXXFLAGS)
-endif
-
-ifeq ($(OS), Windows_NT)
-	ECHO_MESSAGE = "MinGW"
-	LIBS += -lgdi32 -limm32 `pkg-config --static --libs sdl3`
-
-	CXXFLAGS += `pkg-config --cflags sdl3`
-	CFLAGS = $(CXXFLAGS)
-endif
-
-##---------------------------------------------------------------------
-## BUILD RULES
-##---------------------------------------------------------------------
-
-%.o:%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-%.o:$(IMGUI_DIR)/backends/%.cpp
-	$(CXX) $(CXXFLAGS) -c -o $@ $<
-
-all: $(EXE)
-	@echo Build complete for $(ECHO_MESSAGE)
-
-$(EXE): $(OBJS)
-	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
-
-clean:
-	rm -f $(EXE) $(OBJS)

examples/example_sdl3_sdlgpu3/build_win64.bat

@@ -1,14 +0,0 @@
-@REM Build for Visual Studio compiler. Run your copy of vcvars64.bat or vcvarsall.bat to setup command-line compiler.
-
-@set OUT_EXE=example_sdl3_sdlgpu3
-@set INCLUDES=/I..\.. /I..\..\backends /I%SDL3_DIR%\include
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl3.cpp ..\..\backends\imgui_impl_sdlgpu3.cpp ..\..\imgui*.cpp
-@set LIBS=/LIBPATH:%SDL3_DIR%\lib\x64 SDL3.lib shell32.lib
-
-@set OUT_DIR=Debug
-mkdir %OUT_DIR%
-cl /nologo /Zi /MD /utf-8 %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console
-
-@set OUT_DIR=Release
-@REM mkdir %OUT_DIR%
-@REM cl /nologo /Zi /MD /utf-8 /Ox /Oi %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj

@@ -1,189 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{c22cb6f8-39a5-4dda-90ed-4aca4e81e1e5}</ProjectGuid>
-    <RootNamespace>example_sdl3_sdlgpu3</RootNamespace>
-    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-      <GenerateDebugInformation>true</GenerateDebugInformation>
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-    <ClCompile Include="..\..\imgui_tables.cpp" />
-    <ClCompile Include="..\..\imgui_widgets.cpp" />
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