Merge branch 'master' into docking

# Conflicts:
#	backends/imgui_impl_opengl3.cpp
#	imgui.cpp
#	imgui_internal.h

.github/workflows/build.yml

@@ -489,12 +489,12 @@ jobs:
         popd
         make -C examples/example_sdl2_opengl3 -f Makefile.emscripten
 
-    - name: Build example_emscripten_wgpu
+    - name: Build example_glfw_wgpu
       run: |
         pushd emsdk-master
         source ./emsdk_env.sh
         popd
-        make -C examples/example_emscripten_wgpu -f Makefile.emscripten
+        make -C examples/example_glfw_wgpu -f Makefile.emscripten
 
   Android:
     runs-on: ubuntu-22.04

.gitignore

@@ -40,8 +40,9 @@ examples/*.o.tmp
 examples/*.out.js
 examples/*.out.wasm
 examples/example_glfw_opengl3/web/*
+examples/example_glfw_wgpu/web/*
+examples/example_glfw_wgpu/external/*
 examples/example_sdl2_opengl3/web/*
-examples/example_emscripten_wgpu/web/*
 
 ## JetBrains IDE artifacts
 .idea

backends/imgui_impl_allegro5.cpp

@@ -491,8 +491,9 @@ static void ImGui_ImplAllegro5_UpdateKeyModifiers()
 // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
 bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* ev)
 {
-    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
+    ImGuiIO& io = ImGui::GetIO();
 
     switch (ev->type)
     {
@@ -587,7 +588,7 @@ static void ImGui_ImplAllegro5_UpdateMouseCursor()
 void ImGui_ImplAllegro5_NewFrame()
 {
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplAllegro5_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplAllegro5_Init()?");
 
     if (!bd->Texture)
         ImGui_ImplAllegro5_CreateDeviceObjects();

backends/imgui_impl_dx10.cpp

@@ -16,7 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  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).
 //  2021-05-19: DirectX10: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
@@ -588,7 +588,7 @@ void ImGui_ImplDX10_Shutdown()
 void ImGui_ImplDX10_NewFrame()
 {
     ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX10_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX10_Init()?");
 
     if (!bd->pFontSampler)
         ImGui_ImplDX10_CreateDeviceObjects();

backends/imgui_impl_dx11.cpp

@@ -16,7 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  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).
 //  2021-05-19: DirectX11: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
@@ -605,7 +605,7 @@ void ImGui_ImplDX11_Shutdown()
 void ImGui_ImplDX11_NewFrame()
 {
     ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX11_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX11_Init()?");
 
     if (!bd->pFontSampler)
         ImGui_ImplDX11_CreateDeviceObjects();

backends/imgui_impl_dx12.cpp

@@ -25,7 +25,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  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).
 //  2021-05-19: DirectX12: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
@@ -833,7 +833,7 @@ void ImGui_ImplDX12_Shutdown()
 void ImGui_ImplDX12_NewFrame()
 {
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX12_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX12_Init()?");
 
     if (!bd->pPipelineState)
         ImGui_ImplDX12_CreateDeviceObjects();

backends/imgui_impl_dx9.cpp

@@ -16,7 +16,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  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.
 //  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).
 //  2021-06-25: DirectX9: Explicitly disable texture state stages after >= 1.
@@ -330,6 +331,24 @@ void ImGui_ImplDX9_Shutdown()
     IM_DELETE(bd);
 }
 
+static bool ImGui_ImplDX9_CheckFormatSupport(IDirect3DDevice9* pDevice, D3DFORMAT format)
+{
+    IDirect3D9* pd3d = nullptr;
+    if (pDevice->GetDirect3D(&pd3d) != D3D_OK)
+        return false;
+    D3DDEVICE_CREATION_PARAMETERS param = {};
+    D3DDISPLAYMODE mode = {};
+    if (pDevice->GetCreationParameters(&param) != D3D_OK || pDevice->GetDisplayMode(0, &mode) != D3D_OK)
+    {
+        pd3d->Release();
+        return false;
+    }
+    // Font texture should support linear filter, color blend and write to render-target
+    bool support = (pd3d->CheckDeviceFormat(param.AdapterOrdinal, param.DeviceType, mode.Format, D3DUSAGE_DYNAMIC | D3DUSAGE_QUERY_FILTER | D3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING, D3DRTYPE_TEXTURE, format)) == D3D_OK;
+    pd3d->Release();
+    return support;
+}
+
 static bool ImGui_ImplDX9_CreateFontsTexture()
 {
     // Build texture atlas
@@ -341,18 +360,21 @@ static bool ImGui_ImplDX9_CreateFontsTexture()
 
     // Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
 #ifndef IMGUI_USE_BGRA_PACKED_COLOR
-    if (io.Fonts->TexPixelsUseColors)
+    const bool rgba_support = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
+    if (!rgba_support && io.Fonts->TexPixelsUseColors)
     {
         ImU32* dst_start = (ImU32*)ImGui::MemAlloc((size_t)width * height * bytes_per_pixel);
         for (ImU32* src = (ImU32*)pixels, *dst = dst_start, *dst_end = dst_start + (size_t)width * height; dst < dst_end; src++, dst++)
             *dst = IMGUI_COL_TO_DX9_ARGB(*src);
         pixels = (unsigned char*)dst_start;
     }
+#else
+    const bool rgba_support = false;
 #endif
 
     // Upload texture to graphics system
     bd->FontTexture = nullptr;
-    if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, nullptr) < 0)
+    if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, rgba_support ? 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)
@@ -365,7 +387,7 @@ static bool ImGui_ImplDX9_CreateFontsTexture()
     io.Fonts->SetTexID((ImTextureID)bd->FontTexture);
 
 #ifndef IMGUI_USE_BGRA_PACKED_COLOR
-    if (io.Fonts->TexPixelsUseColors)
+    if (!rgba_support && io.Fonts->TexPixelsUseColors)
         ImGui::MemFree(pixels);
 #endif
 
@@ -397,7 +419,7 @@ void ImGui_ImplDX9_InvalidateDeviceObjects()
 void ImGui_ImplDX9_NewFrame()
 {
     ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplDX9_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplDX9_Init()?");
 
     if (!bd->FontTexture)
         ImGui_ImplDX9_CreateDeviceObjects();

backends/imgui_impl_glfw.cpp

@@ -10,9 +10,8 @@
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [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'.
-
 // Issues:
-//  [ ] Platform: Multi-viewport support: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+//  [ ] 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.
@@ -24,7 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2023-12-19: Emscripten: Added ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback() to register canvas selector and auto-resize GLFW window.
 //  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys.
 //  2023-07-18: Inputs: Revert ignoring mouse data on GLFW_CURSOR_DISABLED as it can be used differently. User may set ImGuiConfigFLags_NoMouse if desired. (#5625, #6609)
@@ -91,11 +90,15 @@
 
 #ifdef _WIN32
 #undef APIENTRY
+#ifndef GLFW_EXPOSE_NATIVE_WIN32
 #define GLFW_EXPOSE_NATIVE_WIN32
+#endif
 #include <GLFW/glfw3native.h>   // for glfwGetWin32Window()
 #endif
 #ifdef __APPLE__
+#ifndef GLFW_EXPOSE_NATIVE_COCOA
 #define GLFW_EXPOSE_NATIVE_COCOA
+#endif
 #include <GLFW/glfw3native.h>   // for glfwGetCocoaWindow()
 #endif
 
@@ -581,7 +584,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
 #ifndef __EMSCRIPTEN__
     io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;    // We can create multi-viewports on the Platform side (optional)
 #endif
-#if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32))
+#if GLFW_HAS_MOUSE_PASSTHROUGH || GLFW_HAS_WINDOW_HOVERED
     io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can call io.AddMouseViewportEvent() with correct data (optional)
 #endif
 
@@ -748,7 +751,8 @@ static void ImGui_ImplGlfw_UpdateMouseData()
 
         // (Optional) When using multiple viewports: call io.AddMouseViewportEvent() with the viewport the OS mouse cursor is hovering.
         // If ImGuiBackendFlags_HasMouseHoveredViewport is not set by the backend, Dear imGui will ignore this field and infer the information using its flawed heuristic.
-        // - [X] GLFW >= 3.3 backend ON WINDOWS ONLY does correctly ignore viewports with the _NoInputs flag.
+        // - [X] GLFW >= 3.3 backend ON WINDOWS ONLY does correctly ignore viewports with the _NoInputs flag (since we implement hit via our WndProc hook)
+        //       On other platforms we rely on the library fallbacking to its own search when reporting a viewport with _NoInputs flag.
         // - [!] GLFW <= 3.2 backend CANNOT correctly ignore viewports with the _NoInputs flag, and CANNOT reported Hovered Viewport because of mouse capture.
         //       Some backend are not able to handle that correctly. If a backend report an hovered viewport that has the _NoInputs flag (e.g. when dragging a window
         //       for docking, the viewport has the _NoInputs flag in order to allow us to find the viewport under), then Dear ImGui is forced to ignore the value reported
@@ -756,12 +760,12 @@ static void ImGui_ImplGlfw_UpdateMouseData()
         // - [X] GLFW backend correctly reports this regardless of another viewport behind focused and dragged from (we need this to find a useful drag and drop target).
         // FIXME: This is currently only correct on Win32. See what we do below with the WM_NCHITTEST, missing an equivalent for other systems.
         // See https://github.com/glfw/glfw/issues/1236 if you want to help in making this a GLFW feature.
-#if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32))
-        const bool window_no_input = (viewport->Flags & ImGuiViewportFlags_NoInputs) != 0;
 #if GLFW_HAS_MOUSE_PASSTHROUGH
+        const bool window_no_input = (viewport->Flags & ImGuiViewportFlags_NoInputs) != 0;
         glfwSetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH, window_no_input);
 #endif
-        if (glfwGetWindowAttrib(window, GLFW_HOVERED) && !window_no_input)
+#if GLFW_HAS_MOUSE_PASSTHROUGH || GLFW_HAS_WINDOW_HOVERED
+        if (glfwGetWindowAttrib(window, GLFW_HOVERED))
             mouse_viewport_id = viewport->ID;
 #else
         // We cannot use bd->MouseWindow maintained from CursorEnter/Leave callbacks, because it is locked to the window capturing mouse.
@@ -898,7 +902,7 @@ void ImGui_ImplGlfw_NewFrame()
 {
     ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplGlfw_InitForXXX()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
 
     // Setup display size (every frame to accommodate for window resizing)
     int w, h;
@@ -951,7 +955,7 @@ void ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback(const char* canvas_sel
 {
     IM_ASSERT(canvas_selector != nullptr);
     ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplGlfw_InitForXXX()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
 
     bd->CanvasSelector = canvas_selector;
     emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, bd, false, ImGui_ImplGlfw_OnCanvasSizeChange);

backends/imgui_impl_glfw.h

@@ -8,11 +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 will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
 //  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [x] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+).
+//  [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'.
-
 // Issues:
-//  [ ] Platform: Multi-viewport support: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
+//  [ ] 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.

backends/imgui_impl_metal.mm

@@ -16,7 +16,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Metal: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  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.
@@ -166,7 +166,7 @@ void ImGui_ImplMetal_Shutdown()
 void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor)
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
-    IM_ASSERT(bd->SharedMetalContext != nil && "No Metal context. Did you call ImGui_ImplMetal_Init() ?");
+    IM_ASSERT(bd != nil && "Context or backend not initialized! Did you call ImGui_ImplMetal_Init()?");
     bd->SharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
 
     if (bd->SharedMetalContext.depthStencilState == nil)

backends/imgui_impl_opengl2.cpp

@@ -23,7 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
 //  2021-12-08: OpenGL: Fixed mishandling of the ImDrawCmd::IdxOffset field! This is an old bug but it never had an effect until some internal rendering changes in 1.86.
 //  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).
@@ -120,7 +120,7 @@ void    ImGui_ImplOpenGL2_Shutdown()
 void    ImGui_ImplOpenGL2_NewFrame()
 {
     ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplOpenGL2_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL2_Init()?");
 
     if (!bd->FontTexture)
         ImGui_ImplOpenGL2_CreateDeviceObjects();

backends/imgui_impl_opengl3.cpp

@@ -23,7 +23,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-05-07: OpenGL: Update loader for Linux to support EGL/GLVND. (#7562)
+//  2024-04-16: OpenGL: Detect ES3 contexts on desktop based on version string, to e.g. avoid calling glPolygonMode() on them. (#7447)
 //  2024-01-09: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" and variants, fixing regression on distros missing a symlink.
 //  2023-11-08: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" instead of "libGL.so.1", accommodating for NetBSD systems having only "libGL.so.3" available. (#6983)
 //  2023-10-05: OpenGL: Rename symbols in our internal loader so that LTO compilation with another copy of gl3w is possible. (#6875, #6668, #4445)
@@ -179,9 +181,10 @@
 #endif
 
 // Desktop GL 2.0+ has extension and glPolygonMode() which GL ES and WebGL don't have..
+// A desktop ES context can technically compile fine with our loader, so we also perform a runtime checks
 #if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
 #define IMGUI_IMPL_OPENGL_HAS_EXTENSIONS        // has glGetIntegerv(GL_NUM_EXTENSIONS)
-#define IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE      // has glPolygonMode()
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE // may have glPolygonMode()
 #endif
 
 // Desktop GL 2.1+ and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
@@ -232,6 +235,7 @@ struct ImGui_ImplOpenGL3_Data
     unsigned int    VboHandle, ElementsHandle;
     GLsizeiptr      VertexBufferSize;
     GLsizeiptr      IndexBufferSize;
+    bool            HasPolygonMode;
     bool            HasClipOrigin;
     bool            UseBufferSubData;
 
@@ -300,16 +304,13 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     bd->GlProfileIsES2 = true;
 #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);
     glGetIntegerv(GL_MINOR_VERSION, &minor);
     if (major == 0 && minor == 0)
-    {
-        // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
-        const char* gl_version = (const char*)glGetString(GL_VERSION);
-        sscanf(gl_version, "%d.%d", &major, &minor);
-    }
+        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);
 #if defined(GL_CONTEXT_PROFILE_MASK)
     if (bd->GlVersion >= 320)
@@ -319,6 +320,9 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 
 #if defined(IMGUI_IMPL_OPENGL_ES3)
     bd->GlProfileIsES3 = true;
+#else
+    if (strncmp(gl_version_str, "OpenGL ES 3", 11) == 0)
+        bd->GlProfileIsES3 = true;
 #endif
 
     bd->UseBufferSubData = false;
@@ -333,7 +337,7 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 #endif
 
 #ifdef IMGUI_IMPL_OPENGL_DEBUG
-    printf("GlVersion = %d\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2 = %d, GlProfileIsES3 = %d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", bd->GlVersion, bd->GlProfileIsCompat, bd->GlProfileMask, bd->GlProfileIsES2, bd->GlProfileIsES3, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
+    printf("GlVersion = %d, \"%s\"\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2 = %d, GlProfileIsES3 = %d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", bd->GlVersion, gl_version_str, bd->GlProfileIsCompat, bd->GlProfileMask, bd->GlProfileIsES2, bd->GlProfileIsES3, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
 #endif
 
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
@@ -366,6 +370,9 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
 
     // Detect extensions we support
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    bd->HasPolygonMode = (!bd->GlProfileIsES2 && !bd->GlProfileIsES3);
+#endif
     bd->HasClipOrigin = (bd->GlVersion >= 450);
 #ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
     GLint num_extensions = 0;
@@ -401,7 +408,7 @@ void    ImGui_ImplOpenGL3_Shutdown()
 void    ImGui_ImplOpenGL3_NewFrame()
 {
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplOpenGL3_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL3_Init()?");
 
     if (!bd->ShaderHandle)
         ImGui_ImplOpenGL3_CreateDeviceObjects();
@@ -423,8 +430,9 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
     if (bd->GlVersion >= 310)
         glDisable(GL_PRIMITIVE_RESTART);
 #endif
-#ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
-    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    if (bd->HasPolygonMode)
+        glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 #endif
 
     // Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
@@ -512,8 +520,8 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
 #ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
     GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
 #endif
-#ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
-    GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    GLint last_polygon_mode[2]; if (bd->HasPolygonMode) { glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode); }
 #endif
     GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
     GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
@@ -651,18 +659,10 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
 #endif
 
-#ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
     // Desktop OpenGL 3.0 and OpenGL 3.1 had separate polygon draw modes for front-facing and back-facing faces of polygons
-    if (bd->GlVersion <= 310 || bd->GlProfileIsCompat)
-    {
-        glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]);
-        glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
-    }
-    else
-    {
-        glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
-    }
-#endif // IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
+    if (bd->HasPolygonMode) { if (bd->GlVersion <= 310 || bd->GlProfileIsCompat) { glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]); } else { glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]); } }
+#endif // IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
 
     glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
     glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);

backends/imgui_impl_opengl3.h

@@ -42,9 +42,9 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyFontsTexture();
 IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateDeviceObjects();
 IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
 
-// Specific OpenGL ES versions
-//#define IMGUI_IMPL_OPENGL_ES2     // Auto-detected on Emscripten
-//#define IMGUI_IMPL_OPENGL_ES3     // Auto-detected on iOS/Android
+// 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)
 
 // You can explicitly select GLES2 or GLES3 API by using one of the '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
 #if !defined(IMGUI_IMPL_OPENGL_ES2) \

backends/imgui_impl_opengl3_loader.h

@@ -18,7 +18,7 @@
 // WILL NOT BE USING OUR LOADER, AND INSTEAD EXPECT ANOTHER/YOUR LOADER TO BE AVAILABLE IN THE COMPILATION UNIT.
 //
 // Regenerate with:
-//   python gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
+//   python3 gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
 //
 // More info:
 //   https://github.com/dearimgui/gl3w_stripped
@@ -118,7 +118,7 @@ extern "C" {
 ** included as <GL/glcorearb.h>.
 **
 ** glcorearb.h includes only APIs in the latest OpenGL core profile
-** implementation together with APIs in newer ARB extensions which
+** implementation together with APIs in newer ARB extensions which 
 ** can be supported by the core profile. It does not, and never will
 ** include functionality removed from the core profile, such as
 ** fixed-function vertex and fragment processing.
@@ -260,8 +260,6 @@ typedef khronos_intptr_t GLintptr;
 #define GL_ARRAY_BUFFER_BINDING           0x8894
 #define GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895
 #define GL_STREAM_DRAW                    0x88E0
-#define GL_PIXEL_UNPACK_BUFFER            0x88EC
-#define GL_PIXEL_UNPACK_BUFFER_BINDING    0x88EF
 typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
 typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
 typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
@@ -348,6 +346,10 @@ GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean
 GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
 #endif
 #endif /* GL_VERSION_2_0 */
+#ifndef GL_VERSION_2_1
+#define GL_PIXEL_UNPACK_BUFFER            0x88EC
+#define GL_PIXEL_UNPACK_BUFFER_BINDING    0x88EF
+#endif /* GL_VERSION_2_1 */
 #ifndef GL_VERSION_3_0
 typedef khronos_uint16_t GLhalf;
 #define GL_MAJOR_VERSION                  0x821B
@@ -663,31 +665,123 @@ static GL3WglProc get_proc(const char *proc)
 #else
 #include <dlfcn.h>
 
-static void *libgl;
-static GL3WglProc (*glx_get_proc_address)(const GLubyte *);
+static void* libgl;  // OpenGL library
+static void* libglx;  // GLX library
+static void* libegl;  // EGL library
+static GL3WGetProcAddressProc gl_get_proc_address;
 
-static int open_libgl(void)
+static void close_libgl(void)
 {
+    if (libgl) {
+        dlclose(libgl);
+        libgl = NULL;
+    }
+    if (libegl) {
+        dlclose(libegl);
+        libegl = NULL;
+    }
+    if (libglx) {
+        dlclose(libglx);
+        libglx = NULL;
+    }
+}
+
+static int is_library_loaded(const char* name, void** lib)
+{
+    *lib = dlopen(name, RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
+    return *lib != NULL;
+}
+
+static int open_libs(void)
+{
+    // On Linux we have two APIs to get process addresses: EGL and GLX.
+    // EGL is supported under both X11 and Wayland, whereas GLX is X11-specific.
+
+    libgl = NULL;
+    libegl = NULL;
+    libglx = NULL;
+
+    // First check what's already loaded, the windowing library might have
+    // already loaded either EGL or GLX and we want to use the same one.
+
+    if (is_library_loaded("libEGL.so.1", &libegl) ||
+        is_library_loaded("libGLX.so.0", &libglx)) {
+        libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+        if (libgl)
+            return GL3W_OK;
+        else
+            close_libgl();
+    }
+
+    if (is_library_loaded("libGL.so", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.1", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.3", &libgl))
+        return GL3W_OK;
+
+    // Neither is already loaded, so we have to load one.  Try EGL first
+    // because it is supported under both X11 and Wayland.
+
+    // Load OpenGL + EGL
+    libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+    libegl = dlopen("libEGL.so.1", RTLD_LAZY | RTLD_LOCAL);
+    if (libgl && libegl)
+        return GL3W_OK;
+    else
+        close_libgl();
+
+    // Fall back to legacy libGL, which includes GLX
     // While most systems use libGL.so.1, NetBSD seems to use that libGL.so.3. See https://github.com/ocornut/imgui/issues/6983
     libgl = dlopen("libGL.so", RTLD_LAZY | RTLD_LOCAL);
     if (!libgl)
         libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
     if (!libgl)
         libgl = dlopen("libGL.so.3", RTLD_LAZY | RTLD_LOCAL);
-    if (!libgl)
+
+    if (libgl)
+        return GL3W_OK;
+
+    return GL3W_ERROR_LIBRARY_OPEN;
+}
+
+static int open_libgl(void)
+{
+    int res = open_libs();
+    if (res)
+        return res;
+
+    if (libegl)
+        *(void**)(&gl_get_proc_address) = dlsym(libegl, "eglGetProcAddress");
+    else if (libglx)
+        *(void**)(&gl_get_proc_address) = dlsym(libglx, "glXGetProcAddressARB");
+    else
+        *(void**)(&gl_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
+
+    if (!gl_get_proc_address) {
+        close_libgl();
         return GL3W_ERROR_LIBRARY_OPEN;
-    *(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
+    }
+
     return GL3W_OK;
 }
 
-static void close_libgl(void) { dlclose(libgl); }
-
-static GL3WglProc get_proc(const char *proc)
+static GL3WglProc get_proc(const char* proc)
 {
-    GL3WglProc res;
-    res = glx_get_proc_address((const GLubyte *)proc);
+    GL3WglProc res = NULL;
+
+    // Before EGL version 1.5, eglGetProcAddress doesn't support querying core
+    // functions and may return a dummy function if we try, so try to load the
+    // function from the GL library directly first.
+    if (libegl)
+        *(void**)(&res) = dlsym(libgl, proc);
+
     if (!res)
-        *(void **)(&res) = dlsym(libgl, proc);
+        res = gl_get_proc_address(proc);
+
+    if (!libegl && !res)
+        *(void**)(&res) = dlsym(libgl, proc);
+
     return res;
 }
 #endif

backends/imgui_impl_osx.h

@@ -11,7 +11,9 @@
 //  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [X] Platform: IME support.
 //  [x] Platform: Multi-viewport / platform windows.
-//  - [ ] Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
+// 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.

backends/imgui_impl_osx.mm

@@ -11,7 +11,9 @@
 //  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
 //  [X] Platform: IME support.
 //  [x] Platform: Multi-viewport / platform windows.
-//  - [ ] Window size not correctly reported when enabling io.ConfigViewportsNoDecoration
+// 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.
@@ -31,7 +33,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  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 mices).
@@ -571,7 +573,6 @@ static void ImGui_ImplOSX_UpdateMouseCursor()
 static void ImGui_ImplOSX_UpdateGamepads()
 {
     ImGuiIO& io = ImGui::GetIO();
-    memset(io.NavInputs, 0, sizeof(io.NavInputs));
     if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
         return;
 
@@ -638,6 +639,7 @@ static void ImGui_ImplOSX_UpdateImePosWithView(NSView* view)
 void ImGui_ImplOSX_NewFrame(NSView* view)
 {
     ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOSX_Init()?");
     ImGuiIO& io = ImGui::GetIO();
 
     // Setup display size

backends/imgui_impl_sdl2.cpp

@@ -10,8 +10,9 @@
 //  [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:
-//  [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
+// 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.
@@ -24,7 +25,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-02-14: Inputs: Handle gamepad disconnection. Added ImGui_ImplSDL2_SetGamepadMode().
 //  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
 //  2023-04-06: Inputs: Avoid calling SDL_StartTextInput()/SDL_StopTextInput() as they don't only pertain to IME. It's unclear exactly what their relation is to IME. (#6306)
 //  2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen. (#2702)
@@ -116,19 +118,26 @@ static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
 // SDL Data
 struct ImGui_ImplSDL2_Data
 {
-    SDL_Window*     Window;
-    SDL_Renderer*   Renderer;
-    Uint64          Time;
-    Uint32          MouseWindowID;
-    int             MouseButtonsDown;
-    SDL_Cursor*     MouseCursors[ImGuiMouseCursor_COUNT];
-    SDL_Cursor*     LastMouseCursor;
-    int             PendingMouseLeaveFrame;
-    char*           ClipboardTextData;
-    bool            MouseCanUseGlobalState;
-    bool            MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
-    bool            UseVulkan;
-    bool            WantUpdateMonitors;
+    SDL_Window*             Window;
+    SDL_Renderer*           Renderer;
+    Uint64                  Time;
+    char*                   ClipboardTextData;
+    bool                    UseVulkan;
+    bool                    WantUpdateMonitors;
+
+    // Mouse handling
+    Uint32                  MouseWindowID;
+    int                     MouseButtonsDown;
+    SDL_Cursor*             MouseCursors[ImGuiMouseCursor_COUNT];
+    SDL_Cursor*             MouseLastCursor;
+    int                     MouseLastLeaveFrame;
+    bool                    MouseCanUseGlobalState;
+    bool                    MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
+
+    // Gamepad handling
+    ImVector<SDL_GameController*> Gamepads;
+    ImGui_ImplSDL2_GamepadMode    GamepadMode;
+    bool                          WantUpdateGamepadsList;
 
     ImGui_ImplSDL2_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
@@ -319,8 +328,9 @@ static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
 // If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
 bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
 {
-    ImGuiIO& io = ImGui::GetIO();
     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();
 
     switch (event->type)
     {
@@ -405,10 +415,10 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
             if (window_event == SDL_WINDOWEVENT_ENTER)
             {
                 bd->MouseWindowID = event->window.windowID;
-                bd->PendingMouseLeaveFrame = 0;
+                bd->MouseLastLeaveFrame = 0;
             }
             if (window_event == SDL_WINDOWEVENT_LEAVE)
-                bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
+                bd->MouseLastLeaveFrame = ImGui::GetFrameCount() + 1;
             if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
                 io.AddFocusEvent(true);
             else if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
@@ -426,6 +436,12 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
                 }
             return true;
         }
+        case SDL_CONTROLLERDEVICEADDED:
+        case SDL_CONTROLLERDEVICEREMOVED:
+        {
+            bd->WantUpdateGamepadsList = true;
+            return true;
+        }
     }
     return false;
 }
@@ -473,6 +489,10 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     io.ClipboardUserData = nullptr;
     io.SetPlatformImeDataFn = ImGui_ImplSDL2_SetPlatformImeData;
 
+    // Gamepad handling
+    bd->GamepadMode = ImGui_ImplSDL2_GamepadMode_AutoFirst;
+    bd->WantUpdateGamepadsList = true;
+
     // Load mouse cursors
     bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
     bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
@@ -569,6 +589,8 @@ bool ImGui_ImplSDL2_InitForOther(SDL_Window* window)
     return ImGui_ImplSDL2_Init(window, nullptr, nullptr);
 }
 
+static void ImGui_ImplSDL2_CloseGamepads();
+
 void ImGui_ImplSDL2_Shutdown()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
@@ -581,7 +603,7 @@ void ImGui_ImplSDL2_Shutdown()
         SDL_free(bd->ClipboardTextData);
     for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
         SDL_FreeCursor(bd->MouseCursors[cursor_n]);
-    bd->LastMouseCursor = nullptr;
+    ImGui_ImplSDL2_CloseGamepads();
 
     io.BackendPlatformName = nullptr;
     io.BackendPlatformUserData = nullptr;
@@ -670,59 +692,118 @@ static void ImGui_ImplSDL2_UpdateMouseCursor()
     {
         // Show OS mouse cursor
         SDL_Cursor* expected_cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
-        if (bd->LastMouseCursor != expected_cursor)
+        if (bd->MouseLastCursor != expected_cursor)
         {
             SDL_SetCursor(expected_cursor); // SDL function doesn't have an early out (see #6113)
-            bd->LastMouseCursor = expected_cursor;
+            bd->MouseLastCursor = expected_cursor;
         }
         SDL_ShowCursor(SDL_TRUE);
     }
 }
 
+static void ImGui_ImplSDL2_CloseGamepads()
+{
+    ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
+    if (bd->GamepadMode != ImGui_ImplSDL2_GamepadMode_Manual)
+        for (SDL_GameController* gamepad : bd->Gamepads)
+            SDL_GameControllerClose(gamepad);
+    bd->Gamepads.resize(0);
+}
+
+void ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController** manual_gamepads_array, int manual_gamepads_count)
+{
+    ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
+    ImGui_ImplSDL2_CloseGamepads();
+    if (mode == ImGui_ImplSDL2_GamepadMode_Manual)
+    {
+        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]);
+    }
+    else
+    {
+        IM_ASSERT(manual_gamepads_array == nullptr && manual_gamepads_count <= 0);
+        bd->WantUpdateGamepadsList = true;
+    }
+    bd->GamepadMode = mode;
+}
+
+static void ImGui_ImplSDL2_UpdateGamepadButton(ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerButton button_no)
+{
+    bool merged_value = false;
+    for (SDL_GameController* gamepad : bd->Gamepads)
+        merged_value |= SDL_GameControllerGetButton(gamepad, button_no) != 0;
+    io.AddKeyEvent(key, merged_value);
+}
+
+static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v  > 1.0f ? 1.0f : v; }
+static void ImGui_ImplSDL2_UpdateGamepadAnalog(ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerAxis axis_no, float v0, float v1)
+{
+    float merged_value = 0.0f;
+    for (SDL_GameController* gamepad : bd->Gamepads)
+    {
+        float vn = Saturate((float)(SDL_GameControllerGetAxis(gamepad, axis_no) - v0) / (float)(v1 - v0));
+        if (merged_value < vn)
+            merged_value = vn;
+    }
+    io.AddKeyAnalogEvent(key, merged_value > 0.1f, merged_value);
+}
+
 static void ImGui_ImplSDL2_UpdateGamepads()
 {
+    ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
     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;
 
-    // Get gamepad
+    // Update list of controller(s) to use
+    if (bd->WantUpdateGamepadsList && bd->GamepadMode != ImGui_ImplSDL2_GamepadMode_Manual)
+    {
+        ImGui_ImplSDL2_CloseGamepads();
+        int joystick_count = SDL_NumJoysticks();
+        for (int n = 0; n < joystick_count; n++)
+            if (SDL_IsGameController(n))
+                if (SDL_GameController* gamepad = SDL_GameControllerOpen(n))
+                {
+                    bd->Gamepads.push_back(gamepad);
+                    if (bd->GamepadMode == ImGui_ImplSDL2_GamepadMode_AutoFirst)
+                        break;
+                }
+        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;
-    SDL_GameController* game_controller = SDL_GameControllerOpen(0);
-    if (!game_controller)
+    if (bd->Gamepads.Size == 0)
         return;
     io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
 
     // Update gamepad inputs
-    #define IM_SATURATE(V)                      (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
-    #define MAP_BUTTON(KEY_NO, BUTTON_NO)       { io.AddKeyEvent(KEY_NO, SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0); }
-    #define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
-    const int thumb_dead_zone = 8000;           // SDL_gamecontroller.h suggests using this value.
-    MAP_BUTTON(ImGuiKey_GamepadStart,           SDL_CONTROLLER_BUTTON_START);
-    MAP_BUTTON(ImGuiKey_GamepadBack,            SDL_CONTROLLER_BUTTON_BACK);
-    MAP_BUTTON(ImGuiKey_GamepadFaceLeft,        SDL_CONTROLLER_BUTTON_X);              // Xbox X, PS Square
-    MAP_BUTTON(ImGuiKey_GamepadFaceRight,       SDL_CONTROLLER_BUTTON_B);              // Xbox B, PS Circle
-    MAP_BUTTON(ImGuiKey_GamepadFaceUp,          SDL_CONTROLLER_BUTTON_Y);              // Xbox Y, PS Triangle
-    MAP_BUTTON(ImGuiKey_GamepadFaceDown,        SDL_CONTROLLER_BUTTON_A);              // Xbox A, PS Cross
-    MAP_BUTTON(ImGuiKey_GamepadDpadLeft,        SDL_CONTROLLER_BUTTON_DPAD_LEFT);
-    MAP_BUTTON(ImGuiKey_GamepadDpadRight,       SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
-    MAP_BUTTON(ImGuiKey_GamepadDpadUp,          SDL_CONTROLLER_BUTTON_DPAD_UP);
-    MAP_BUTTON(ImGuiKey_GamepadDpadDown,        SDL_CONTROLLER_BUTTON_DPAD_DOWN);
-    MAP_BUTTON(ImGuiKey_GamepadL1,              SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
-    MAP_BUTTON(ImGuiKey_GamepadR1,              SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
-    MAP_ANALOG(ImGuiKey_GamepadL2,              SDL_CONTROLLER_AXIS_TRIGGERLEFT,  0.0f, 32767);
-    MAP_ANALOG(ImGuiKey_GamepadR2,              SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
-    MAP_BUTTON(ImGuiKey_GamepadL3,              SDL_CONTROLLER_BUTTON_LEFTSTICK);
-    MAP_BUTTON(ImGuiKey_GamepadR3,              SDL_CONTROLLER_BUTTON_RIGHTSTICK);
-    MAP_ANALOG(ImGuiKey_GamepadLStickLeft,      SDL_CONTROLLER_AXIS_LEFTX,  -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadLStickRight,     SDL_CONTROLLER_AXIS_LEFTX,  +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadLStickUp,        SDL_CONTROLLER_AXIS_LEFTY,  -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadLStickDown,      SDL_CONTROLLER_AXIS_LEFTY,  +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadRStickLeft,      SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadRStickRight,     SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadRStickUp,        SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadRStickDown,      SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
-    #undef MAP_BUTTON
-    #undef MAP_ANALOG
+    const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadStart,       SDL_CONTROLLER_BUTTON_START);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadBack,        SDL_CONTROLLER_BUTTON_BACK);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceLeft,    SDL_CONTROLLER_BUTTON_X);              // Xbox X, PS Square
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceRight,   SDL_CONTROLLER_BUTTON_B);              // Xbox B, PS Circle
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceUp,      SDL_CONTROLLER_BUTTON_Y);              // Xbox Y, PS Triangle
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceDown,    SDL_CONTROLLER_BUTTON_A);              // Xbox A, PS Cross
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadLeft,    SDL_CONTROLLER_BUTTON_DPAD_LEFT);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadRight,   SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadUp,      SDL_CONTROLLER_BUTTON_DPAD_UP);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadDown,    SDL_CONTROLLER_BUTTON_DPAD_DOWN);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL1,          SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR1,          SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadL2,          SDL_CONTROLLER_AXIS_TRIGGERLEFT,  0.0f, 32767);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadR2,          SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL3,          SDL_CONTROLLER_BUTTON_LEFTSTICK);
+    ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR3,          SDL_CONTROLLER_BUTTON_RIGHTSTICK);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickLeft,  SDL_CONTROLLER_AXIS_LEFTX,  -thumb_dead_zone, -32768);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickRight, SDL_CONTROLLER_AXIS_LEFTX,  +thumb_dead_zone, +32767);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickUp,    SDL_CONTROLLER_AXIS_LEFTY,  -thumb_dead_zone, -32768);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickDown,  SDL_CONTROLLER_AXIS_LEFTY,  +thumb_dead_zone, +32767);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickLeft,  SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickRight, SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickUp,    SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
+    ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown,  SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
 }
 
 // FIXME: Note that doesn't update with DPI/Scaling change only as SDL2 doesn't have an event for it (SDL3 has).
@@ -761,7 +842,7 @@ static void ImGui_ImplSDL2_UpdateMonitors()
 void ImGui_ImplSDL2_NewFrame()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDL2_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
     ImGuiIO& io = ImGui::GetIO();
 
     // Setup display size (every frame to accommodate for window resizing)
@@ -791,10 +872,10 @@ void ImGui_ImplSDL2_NewFrame()
     io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
-    if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
+    if (bd->MouseLastLeaveFrame && bd->MouseLastLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
     {
         bd->MouseWindowID = 0;
-        bd->PendingMouseLeaveFrame = 0;
+        bd->MouseLastLeaveFrame = 0;
         io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
     }
 

backends/imgui_impl_sdl2.h

@@ -9,8 +9,9 @@
 //  [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:
-//  [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
+// 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.
@@ -27,6 +28,7 @@
 
 struct SDL_Window;
 struct SDL_Renderer;
+struct _SDL_GameController;
 typedef union SDL_Event SDL_Event;
 
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
@@ -39,8 +41,9 @@ 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);
 
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-static inline void ImGui_ImplSDL2_NewFrame(SDL_Window*) { ImGui_ImplSDL2_NewFrame(); } // 1.84: removed unnecessary parameter
-#endif
+// 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 = NULL, int manual_gamepads_count = -1);
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdl3.cpp

@@ -10,9 +10,10 @@
 //  [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:
-//  [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
-//  [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()!.
+// 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).
+//  [ ] Platform: IME SUPPORT IS BROKEN IN SDL3 BECAUSE INPUTS GETS SENT TO BOTH APP AND IME + 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.
@@ -24,7 +25,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-04-15: Inputs: Re-enable calling SDL_StartTextInput()/SDL_StopTextInput() as SDL3 no longer enables it by default and should play nicer with IME.
+//  2024-02-13: Inputs: Fixed gamepad support. Handle gamepad disconnection. Added ImGui_ImplSDL3_SetGamepadMode().
 //  2023-11-13: Updated for recent SDL3 API changes.
 //  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
 //  2023-05-04: Fixed build on Emscripten/iOS/Android. (#6391)
@@ -64,19 +67,26 @@
 // SDL Data
 struct ImGui_ImplSDL3_Data
 {
-    SDL_Window*     Window;
-    SDL_Renderer*   Renderer;
-    Uint64          Time;
-    Uint32          MouseWindowID;
-    int             MouseButtonsDown;
-    SDL_Cursor*     MouseCursors[ImGuiMouseCursor_COUNT];
-    SDL_Cursor*     LastMouseCursor;
-    int             PendingMouseLeaveFrame;
-    char*           ClipboardTextData;
-    bool            MouseCanUseGlobalState;
-    bool            MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
-    bool            UseVulkan;
-    bool            WantUpdateMonitors;
+    SDL_Window*             Window;
+    SDL_Renderer*           Renderer;
+    Uint64                  Time;
+    char*                   ClipboardTextData;
+    bool                    UseVulkan;
+    bool                    WantUpdateMonitors;
+
+    // Mouse handling
+    Uint32                  MouseWindowID;
+    int                     MouseButtonsDown;
+    SDL_Cursor*             MouseCursors[ImGuiMouseCursor_COUNT];
+    SDL_Cursor*             MouseLastCursor;
+    int                     MousePendingLeaveFrame;
+    bool                    MouseCanUseGlobalState;
+    bool                    MouseCanReportHoveredViewport;  // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
+
+    // Gamepad handling
+    ImVector<SDL_Gamepad*>  Gamepads;
+    ImGui_ImplSDL3_GamepadMode  GamepadMode;
+    bool                    WantUpdateGamepadsList;
 
     ImGui_ImplSDL3_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
@@ -120,6 +130,11 @@ static void ImGui_ImplSDL3_SetPlatformImeData(ImGuiViewport* viewport, ImGuiPlat
         r.w = 1;
         r.h = (int)data->InputLineHeight;
         SDL_SetTextInputRect(&r);
+        SDL_StartTextInput();
+    }
+    else
+    {
+        SDL_StopTextInput();
     }
 }
 
@@ -266,8 +281,9 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
 // If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
 bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
 {
-    ImGuiIO& io = ImGui::GetIO();
     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();
 
     switch (event->type)
     {
@@ -339,7 +355,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         case SDL_EVENT_WINDOW_MOUSE_ENTER:
         {
             bd->MouseWindowID = event->window.windowID;
-            bd->PendingMouseLeaveFrame = 0;
+            bd->MousePendingLeaveFrame = 0;
             return true;
         }
         // - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
@@ -348,7 +364,7 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
         // FIXME: Unconfirmed whether this is still needed with SDL3.
         case SDL_EVENT_WINDOW_MOUSE_LEAVE:
         {
-            bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
+            bd->MousePendingLeaveFrame = ImGui::GetFrameCount() + 1;
             return true;
         }
         case SDL_EVENT_WINDOW_FOCUS_GAINED:
@@ -371,6 +387,12 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
                 return true;
             }
             return true;
+        case SDL_EVENT_GAMEPAD_ADDED:
+        case SDL_EVENT_GAMEPAD_REMOVED:
+        {
+            bd->WantUpdateGamepadsList = true;
+            return true;
+        }
     }
     return false;
 }
@@ -430,6 +452,10 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
     io.ClipboardUserData = nullptr;
     io.SetPlatformImeDataFn = ImGui_ImplSDL3_SetPlatformImeData;
 
+    // Gamepad handling
+    bd->GamepadMode = ImGui_ImplSDL3_GamepadMode_AutoFirst;
+    bd->WantUpdateGamepadsList = true;
+
     // Load mouse cursors
     bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
     bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
@@ -504,6 +530,8 @@ bool ImGui_ImplSDL3_InitForOther(SDL_Window* window)
     return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
 }
 
+static void ImGui_ImplSDL3_CloseGamepads();
+
 void ImGui_ImplSDL3_Shutdown()
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@@ -516,7 +544,7 @@ void ImGui_ImplSDL3_Shutdown()
         SDL_free(bd->ClipboardTextData);
     for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
         SDL_DestroyCursor(bd->MouseCursors[cursor_n]);
-    bd->LastMouseCursor = nullptr;
+    ImGui_ImplSDL3_CloseGamepads();
 
     io.BackendPlatformName = nullptr;
     io.BackendPlatformUserData = nullptr;
@@ -605,59 +633,119 @@ static void ImGui_ImplSDL3_UpdateMouseCursor()
     {
         // Show OS mouse cursor
         SDL_Cursor* expected_cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
-        if (bd->LastMouseCursor != expected_cursor)
+        if (bd->MouseLastCursor != expected_cursor)
         {
             SDL_SetCursor(expected_cursor); // SDL function doesn't have an early out (see #6113)
-            bd->LastMouseCursor = expected_cursor;
+            bd->MouseLastCursor = expected_cursor;
         }
         SDL_ShowCursor();
     }
 }
 
+static void ImGui_ImplSDL3_CloseGamepads()
+{
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
+    if (bd->GamepadMode != ImGui_ImplSDL3_GamepadMode_Manual)
+        for (SDL_Gamepad* gamepad : bd->Gamepads)
+            SDL_CloseGamepad(gamepad);
+    bd->Gamepads.resize(0);
+}
+
+void ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode mode, SDL_Gamepad** manual_gamepads_array, int manual_gamepads_count)
+{
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
+    ImGui_ImplSDL3_CloseGamepads();
+    if (mode == ImGui_ImplSDL3_GamepadMode_Manual)
+    {
+        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]);
+    }
+    else
+    {
+        IM_ASSERT(manual_gamepads_array == nullptr && manual_gamepads_count <= 0);
+        bd->WantUpdateGamepadsList = true;
+    }
+    bd->GamepadMode = mode;
+}
+
+static void ImGui_ImplSDL3_UpdateGamepadButton(ImGui_ImplSDL3_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GamepadButton button_no)
+{
+    bool merged_value = false;
+    for (SDL_Gamepad* gamepad : bd->Gamepads)
+        merged_value |= SDL_GetGamepadButton(gamepad, button_no) != 0;
+    io.AddKeyEvent(key, merged_value);
+}
+
+static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v  > 1.0f ? 1.0f : v; }
+static void ImGui_ImplSDL3_UpdateGamepadAnalog(ImGui_ImplSDL3_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GamepadAxis axis_no, float v0, float v1)
+{
+    float merged_value = 0.0f;
+    for (SDL_Gamepad* gamepad : bd->Gamepads)
+    {
+        float vn = Saturate((float)(SDL_GetGamepadAxis(gamepad, axis_no) - v0) / (float)(v1 - v0));
+        if (merged_value < vn)
+            merged_value = vn;
+    }
+    io.AddKeyAnalogEvent(key, merged_value > 0.1f, merged_value);
+}
+
 static void ImGui_ImplSDL3_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;
+    ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
 
-    // Get gamepad
+    // Update list of gamepads to use
+    if (bd->WantUpdateGamepadsList && bd->GamepadMode != ImGui_ImplSDL3_GamepadMode_Manual)
+    {
+        ImGui_ImplSDL3_CloseGamepads();
+        int sdl_gamepads_count = 0;
+        SDL_JoystickID* sdl_gamepads = SDL_GetGamepads(&sdl_gamepads_count);
+        for (int n = 0; n < sdl_gamepads_count; n++)
+            if (SDL_Gamepad* gamepad = SDL_OpenGamepad(sdl_gamepads[n]))
+            {
+                bd->Gamepads.push_back(gamepad);
+                if (bd->GamepadMode == ImGui_ImplSDL3_GamepadMode_AutoFirst)
+                    break;
+            }
+        SDL_free(sdl_gamepads);
+        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;
-    SDL_Gamepad* gamepad = SDL_OpenGamepad(0);
-    if (!gamepad)
+    if (bd->Gamepads.Size == 0)
         return;
     io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
 
     // Update gamepad inputs
-    #define IM_SATURATE(V)                      (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
-    #define MAP_BUTTON(KEY_NO, BUTTON_NO)       { io.AddKeyEvent(KEY_NO, SDL_GetGamepadButton(gamepad, BUTTON_NO) != 0); }
-    #define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GetGamepadAxis(gamepad, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
-    const int thumb_dead_zone = 8000;           // SDL_gamecontroller.h suggests using this value.
-    MAP_BUTTON(ImGuiKey_GamepadStart,           SDL_GAMEPAD_BUTTON_START);
-    MAP_BUTTON(ImGuiKey_GamepadBack,            SDL_GAMEPAD_BUTTON_BACK);
-    MAP_BUTTON(ImGuiKey_GamepadFaceLeft,        SDL_GAMEPAD_BUTTON_WEST);           // Xbox X, PS Square
-    MAP_BUTTON(ImGuiKey_GamepadFaceRight,       SDL_GAMEPAD_BUTTON_EAST);           // Xbox B, PS Circle
-    MAP_BUTTON(ImGuiKey_GamepadFaceUp,          SDL_GAMEPAD_BUTTON_NORTH);          // Xbox Y, PS Triangle
-    MAP_BUTTON(ImGuiKey_GamepadFaceDown,        SDL_GAMEPAD_BUTTON_SOUTH);          // Xbox A, PS Cross
-    MAP_BUTTON(ImGuiKey_GamepadDpadLeft,        SDL_GAMEPAD_BUTTON_DPAD_LEFT);
-    MAP_BUTTON(ImGuiKey_GamepadDpadRight,       SDL_GAMEPAD_BUTTON_DPAD_RIGHT);
-    MAP_BUTTON(ImGuiKey_GamepadDpadUp,          SDL_GAMEPAD_BUTTON_DPAD_UP);
-    MAP_BUTTON(ImGuiKey_GamepadDpadDown,        SDL_GAMEPAD_BUTTON_DPAD_DOWN);
-    MAP_BUTTON(ImGuiKey_GamepadL1,              SDL_GAMEPAD_BUTTON_LEFT_SHOULDER);
-    MAP_BUTTON(ImGuiKey_GamepadR1,              SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER);
-    MAP_ANALOG(ImGuiKey_GamepadL2,              SDL_GAMEPAD_AXIS_LEFT_TRIGGER,  0.0f, 32767);
-    MAP_ANALOG(ImGuiKey_GamepadR2,              SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, 0.0f, 32767);
-    MAP_BUTTON(ImGuiKey_GamepadL3,              SDL_GAMEPAD_BUTTON_LEFT_STICK);
-    MAP_BUTTON(ImGuiKey_GamepadR3,              SDL_GAMEPAD_BUTTON_RIGHT_STICK);
-    MAP_ANALOG(ImGuiKey_GamepadLStickLeft,      SDL_GAMEPAD_AXIS_LEFTX,  -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadLStickRight,     SDL_GAMEPAD_AXIS_LEFTX,  +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadLStickUp,        SDL_GAMEPAD_AXIS_LEFTY,  -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadLStickDown,      SDL_GAMEPAD_AXIS_LEFTY,  +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadRStickLeft,      SDL_GAMEPAD_AXIS_RIGHTX, -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadRStickRight,     SDL_GAMEPAD_AXIS_RIGHTX, +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiKey_GamepadRStickUp,        SDL_GAMEPAD_AXIS_RIGHTY, -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiKey_GamepadRStickDown,      SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
-    #undef MAP_BUTTON
-    #undef MAP_ANALOG
+    const int thumb_dead_zone = 8000;           // SDL_gamepad.h suggests using this value.
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadStart,       SDL_GAMEPAD_BUTTON_START);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadBack,        SDL_GAMEPAD_BUTTON_BACK);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceLeft,    SDL_GAMEPAD_BUTTON_WEST);           // Xbox X, PS Square
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceRight,   SDL_GAMEPAD_BUTTON_EAST);           // Xbox B, PS Circle
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceUp,      SDL_GAMEPAD_BUTTON_NORTH);          // Xbox Y, PS Triangle
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceDown,    SDL_GAMEPAD_BUTTON_SOUTH);          // Xbox A, PS Cross
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadLeft,    SDL_GAMEPAD_BUTTON_DPAD_LEFT);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadRight,   SDL_GAMEPAD_BUTTON_DPAD_RIGHT);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadUp,      SDL_GAMEPAD_BUTTON_DPAD_UP);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadDown,    SDL_GAMEPAD_BUTTON_DPAD_DOWN);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL1,          SDL_GAMEPAD_BUTTON_LEFT_SHOULDER);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR1,          SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadL2,          SDL_GAMEPAD_AXIS_LEFT_TRIGGER,  0.0f, 32767);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadR2,          SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, 0.0f, 32767);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL3,          SDL_GAMEPAD_BUTTON_LEFT_STICK);
+    ImGui_ImplSDL3_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR3,          SDL_GAMEPAD_BUTTON_RIGHT_STICK);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickLeft,  SDL_GAMEPAD_AXIS_LEFTX,  -thumb_dead_zone, -32768);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickRight, SDL_GAMEPAD_AXIS_LEFTX,  +thumb_dead_zone, +32767);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickUp,    SDL_GAMEPAD_AXIS_LEFTY,  -thumb_dead_zone, -32768);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickDown,  SDL_GAMEPAD_AXIS_LEFTY,  +thumb_dead_zone, +32767);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickLeft,  SDL_GAMEPAD_AXIS_RIGHTX, -thumb_dead_zone, -32768);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickRight, SDL_GAMEPAD_AXIS_RIGHTX, +thumb_dead_zone, +32767);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickUp,    SDL_GAMEPAD_AXIS_RIGHTY, -thumb_dead_zone, -32768);
+    ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown,  SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
 }
 
 static void ImGui_ImplSDL3_UpdateMonitors()
@@ -692,7 +780,7 @@ static void ImGui_ImplSDL3_UpdateMonitors()
 void ImGui_ImplSDL3_NewFrame()
 {
     ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDL3_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDL3_Init()?");
     ImGuiIO& io = ImGui::GetIO();
 
     // Setup display size (every frame to accommodate for window resizing)
@@ -719,10 +807,10 @@ void ImGui_ImplSDL3_NewFrame()
     io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
-    if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
+    if (bd->MousePendingLeaveFrame && bd->MousePendingLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
     {
         bd->MouseWindowID = 0;
-        bd->PendingMouseLeaveFrame = 0;
+        bd->MousePendingLeaveFrame = 0;
         io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
     }
 

backends/imgui_impl_sdl3.h

@@ -10,9 +10,11 @@
 //  [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:
-//  [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
+// 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. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
+//  [ ] Platform: IME SUPPORT IS BROKEN IN SDL3 BECAUSE INPUTS GETS SENT TO BOTH APP AND IME + 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.
@@ -28,6 +30,7 @@
 
 struct SDL_Window;
 struct SDL_Renderer;
+struct SDL_Gamepad;
 typedef union SDL_Event SDL_Event;
 
 IMGUI_IMPL_API bool     ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
@@ -40,4 +43,9 @@ IMGUI_IMPL_API void     ImGui_ImplSDL3_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDL3_NewFrame();
 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 = NULL, int manual_gamepads_count = -1);
+
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlrenderer2.cpp

@@ -106,7 +106,7 @@ static void ImGui_ImplSDLRenderer2_SetupRenderState()
 void ImGui_ImplSDLRenderer2_NewFrame()
 {
     ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer2_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer2_Init()?");
 
     if (!bd->FontTexture)
         ImGui_ImplSDLRenderer2_CreateDeviceObjects();

backends/imgui_impl_sdlrenderer3.cpp

@@ -22,6 +22,7 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
+//  2024-02-12: Amend to query SDL_RenderViewportSet() and restore viewport accordingly.
 //  2023-05-30: Initial version.
 
 #include "imgui.h"
@@ -101,7 +102,7 @@ static void ImGui_ImplSDLRenderer3_SetupRenderState()
 void ImGui_ImplSDLRenderer3_NewFrame()
 {
     ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer3_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplSDLRenderer3_Init()?");
 
     if (!bd->FontTexture)
         ImGui_ImplSDLRenderer3_CreateDeviceObjects();
@@ -131,10 +132,12 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data)
     struct BackupSDLRendererState
     {
         SDL_Rect    Viewport;
+        bool        ViewportEnabled;
         bool        ClipEnabled;
         SDL_Rect    ClipRect;
     };
     BackupSDLRendererState old = {};
+    old.ViewportEnabled = SDL_RenderViewportSet(bd->SDLRenderer) == SDL_TRUE;
     old.ClipEnabled = SDL_RenderClipEnabled(bd->SDLRenderer) == SDL_TRUE;
     SDL_GetRenderViewport(bd->SDLRenderer, &old.Viewport);
     SDL_GetRenderClipRect(bd->SDLRenderer, &old.ClipRect);
@@ -180,11 +183,7 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data)
 
                 const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, pos));
                 const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, uv));
-#if SDL_VERSION_ATLEAST(2,0,19)
                 const SDL_Color* color = (const SDL_Color*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.19+
-#else
-                const int* color = (const int*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + offsetof(ImDrawVert, col)); // SDL 2.0.17 and 2.0.18
-#endif
 
                 // Bind texture, Draw
 				SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
@@ -199,7 +198,7 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data)
     }
 
     // Restore modified SDL_Renderer state
-    SDL_SetRenderViewport(bd->SDLRenderer, &old.Viewport);
+    SDL_SetRenderViewport(bd->SDLRenderer, old.ViewportEnabled ? &old.Viewport : nullptr);
     SDL_SetRenderClipRect(bd->SDLRenderer, old.ClipEnabled ? &old.ClipRect : nullptr);
 }
 

backends/imgui_impl_vulkan.cpp

@@ -35,10 +35,13 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-04-19: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define (you can also use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
+//  2024-02-14: *BREAKING CHANGE*: Moved RenderPass parameter from ImGui_ImplVulkan_Init() function to ImGui_ImplVulkan_InitInfo structure. Not required when using dynamic rendering.
+//  2024-02-12: *BREAKING CHANGE*: Dynamic rendering now require filling PipelineRenderingCreateInfo structure.
 //  2024-01-19: Vulkan: Fixed vkAcquireNextImageKHR() validation errors in VulkanSDK 1.3.275 by allocating one extra semaphore than in-flight frames. (#7236)
 //  2024-01-11: Vulkan: Fixed vkMapMemory() calls unnecessarily using full buffer size (#3957). Fixed MinAllocationSize handing (#7189).
 //  2024-01-03: Vulkan: Added MinAllocationSize field in ImGui_ImplVulkan_InitInfo to workaround zealous "best practice" validation layer. (#7189, #4238)
-//  2024-01-03: Vulkan: Stoped creating command pools with VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT as we don't reset them.
+//  2024-01-03: Vulkan: Stopped creating command pools with VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT as we don't reset them.
 //  2023-11-29: Vulkan: Fixed mismatching allocator passed to vkCreateCommandPool() vs vkDestroyCommandPool(). (#7075)
 //  2023-11-10: *BREAKING CHANGE*: Removed parameter from ImGui_ImplVulkan_CreateFontsTexture(): backend now creates its own command-buffer to upload fonts.
 //              *BREAKING CHANGE*: Removed ImGui_ImplVulkan_DestroyFontUploadObjects() which is now unecessary as we create and destroy those objects in the backend.
@@ -109,12 +112,13 @@ void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_devi
 
 // Vulkan prototypes for use with custom loaders
 // (see description of IMGUI_IMPL_VULKAN_NO_PROTOTYPES in imgui_impl_vulkan.h
-#ifdef VK_NO_PROTOTYPES
+#if defined(VK_NO_PROTOTYPES) && !defined(VOLK_H_)
+#define IMGUI_IMPL_VULKAN_USE_LOADER
 static bool g_FunctionsLoaded = false;
 #else
 static bool g_FunctionsLoaded = true;
 #endif
-#ifdef VK_NO_PROTOTYPES
+#ifdef IMGUI_IMPL_VULKAN_USE_LOADER
 #define IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_MAP_MACRO) \
     IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateCommandBuffers) \
     IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateDescriptorSets) \
@@ -192,10 +196,9 @@ static bool g_FunctionsLoaded = true;
 #define IMGUI_VULKAN_FUNC_DEF(func) static PFN_##func func;
 IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_DEF)
 #undef IMGUI_VULKAN_FUNC_DEF
-#endif // VK_NO_PROTOTYPES
+#endif // IMGUI_IMPL_VULKAN_USE_LOADER
 
-#if defined(VK_VERSION_1_3) || defined(VK_KHR_dynamic_rendering)
-#define IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
+#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
 static PFN_vkCmdBeginRenderingKHR   ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR;
 static PFN_vkCmdEndRenderingKHR     ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR;
 #endif
@@ -225,11 +228,12 @@ struct ImGui_ImplVulkan_WindowRenderBuffers
 // Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
 struct ImGui_ImplVulkan_ViewportData
 {
+    ImGui_ImplVulkanH_Window                Window;                 // Used by secondary viewports only
+    ImGui_ImplVulkan_WindowRenderBuffers    RenderBuffers;          // Used by all viewports
     bool                                    WindowOwned;
-    ImGui_ImplVulkanH_Window                Window;             // Used by secondary viewports only
-    ImGui_ImplVulkan_WindowRenderBuffers    RenderBuffers;      // Used by all viewports
+    bool                                    SwapChainNeedRebuild;   // Flag when viewport swapchain resized in the middle of processing a frame
 
-    ImGui_ImplVulkan_ViewportData()         { WindowOwned = false; memset(&RenderBuffers, 0, sizeof(RenderBuffers)); }
+    ImGui_ImplVulkan_ViewportData()         { WindowOwned = SwapChainNeedRebuild = false; memset(&RenderBuffers, 0, sizeof(RenderBuffers)); }
     ~ImGui_ImplVulkan_ViewportData()        { }
 };
 
@@ -237,13 +241,12 @@ struct ImGui_ImplVulkan_ViewportData
 struct ImGui_ImplVulkan_Data
 {
     ImGui_ImplVulkan_InitInfo   VulkanInitInfo;
-    VkRenderPass                RenderPass;
     VkDeviceSize                BufferMemoryAlignment;
     VkPipelineCreateFlags       PipelineCreateFlags;
     VkDescriptorSetLayout       DescriptorSetLayout;
     VkPipelineLayout            PipelineLayout;
-    VkPipeline                  Pipeline;
-    uint32_t                    Subpass;
+    VkPipeline                  Pipeline;               // pipeline for main render pass (created by app)
+    VkPipeline                  PipelineForViewports;   // pipeline for secondary viewports (created by backend)
     VkShaderModule              ShaderModuleVert;
     VkShaderModule              ShaderModuleFrag;
 
@@ -981,13 +984,11 @@ static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationC
     info.subpass = subpass;
 
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
-    VkPipelineRenderingCreateInfoKHR pipelineRenderingCreateInfo = {};
-    pipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR;
-    pipelineRenderingCreateInfo.colorAttachmentCount = 1;
-    pipelineRenderingCreateInfo.pColorAttachmentFormats = &bd->VulkanInitInfo.ColorAttachmentFormat;
     if (bd->VulkanInitInfo.UseDynamicRendering)
     {
-        info.pNext = &pipelineRenderingCreateInfo;
+        IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR && "PipelineRenderingCreateInfo sType must be VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR");
+        IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.pNext == nullptr && "PipelineRenderingCreateInfo pNext must be NULL");
+        info.pNext = &bd->VulkanInitInfo.PipelineRenderingCreateInfo;
         info.renderPass = VK_NULL_HANDLE; // Just make sure it's actually nullptr.
     }
 #endif
@@ -1052,7 +1053,7 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
         check_vk_result(err);
     }
 
-    ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, bd->RenderPass, v->MSAASamples, &bd->Pipeline, bd->Subpass);
+    ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, v->RenderPass, v->MSAASamples, &bd->Pipeline, v->Subpass);
 
     return true;
 }
@@ -1072,6 +1073,7 @@ void    ImGui_ImplVulkan_DestroyDeviceObjects()
     if (bd->DescriptorSetLayout)  { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayout, v->Allocator); bd->DescriptorSetLayout = VK_NULL_HANDLE; }
     if (bd->PipelineLayout)       { vkDestroyPipelineLayout(v->Device, bd->PipelineLayout, v->Allocator); bd->PipelineLayout = VK_NULL_HANDLE; }
     if (bd->Pipeline)             { vkDestroyPipeline(v->Device, bd->Pipeline, v->Allocator); bd->Pipeline = VK_NULL_HANDLE; }
+    if (bd->PipelineForViewports) { vkDestroyPipeline(v->Device, bd->PipelineForViewports, v->Allocator); bd->PipelineForViewports = VK_NULL_HANDLE; }
 }
 
 bool    ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data)
@@ -1079,8 +1081,8 @@ bool    ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const ch
     // Load function pointers
     // You can use the default Vulkan loader using:
     //      ImGui_ImplVulkan_LoadFunctions([](const char* function_name, void*) { return vkGetInstanceProcAddr(your_vk_isntance, function_name); });
-    // But this would be equivalent to not setting VK_NO_PROTOTYPES.
-#ifdef VK_NO_PROTOTYPES
+    // But this would be roughly equivalent to not setting VK_NO_PROTOTYPES.
+#ifdef IMGUI_IMPL_VULKAN_USE_LOADER
 #define IMGUI_VULKAN_FUNC_LOAD(func) \
     func = reinterpret_cast<decltype(func)>(loader_func(#func, user_data)); \
     if (func == nullptr)   \
@@ -1102,14 +1104,14 @@ bool    ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const ch
     return true;
 }
 
-bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass)
+bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info)
 {
     IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!");
 
     if (info->UseDynamicRendering)
     {
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
-#ifndef VK_NO_PROTOTYPES
+#ifndef IMGUI_IMPL_VULKAN_USE_LOADER
         ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdBeginRenderingKHR"));
         ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdEndRenderingKHR"));
 #endif
@@ -1138,11 +1140,9 @@ bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass rend
     IM_ASSERT(info->MinImageCount >= 2);
     IM_ASSERT(info->ImageCount >= info->MinImageCount);
     if (info->UseDynamicRendering == false)
-        IM_ASSERT(render_pass != VK_NULL_HANDLE);
+        IM_ASSERT(info->RenderPass != VK_NULL_HANDLE);
 
     bd->VulkanInitInfo = *info;
-    bd->RenderPass = render_pass;
-    bd->Subpass = info->Subpass;
 
     ImGui_ImplVulkan_CreateDeviceObjects();
 
@@ -1183,7 +1183,7 @@ void ImGui_ImplVulkan_Shutdown()
 void ImGui_ImplVulkan_NewFrame()
 {
     ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplVulkan_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplVulkan_Init()?");
 
     if (!bd->FontDescriptorSet)
         ImGui_ImplVulkan_CreateFontsTexture();
@@ -1436,8 +1436,6 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
     wd->ImageCount = 0;
     if (wd->RenderPass)
         vkDestroyRenderPass(device, wd->RenderPass, allocator);
-    if (wd->Pipeline)
-        vkDestroyPipeline(device, wd->Pipeline, allocator);
 
     // If min image count was not specified, request different count of images dependent on selected present mode
     if (min_image_count == 0)
@@ -1538,7 +1536,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
 
         // We do not create a pipeline by default as this is also used by examples' main.cpp,
         // but secondary viewport in multi-viewport mode may want to create one with:
-        //ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, bd->Subpass);
+        //ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, v->Subpass);
     }
 
     // Create The Image Views
@@ -1607,7 +1605,6 @@ void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui
     IM_FREE(wd->FrameSemaphores);
     wd->Frames = nullptr;
     wd->FrameSemaphores = nullptr;
-    vkDestroyPipeline(device, wd->Pipeline, allocator);
     vkDestroyRenderPass(device, wd->RenderPass, allocator);
     vkDestroySwapchainKHR(device, wd->Swapchain, allocator);
     vkDestroySurfaceKHR(instance, wd->Surface, allocator);
@@ -1672,13 +1669,17 @@ static void ImGui_ImplVulkan_CreateWindow(ImGuiViewport* viewport)
     }
 
     // Select Surface Format
-    const VkFormat requestSurfaceImageFormat[] = {
-#if defined(IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING)
-        v->UseDynamicRendering && v->ColorAttachmentFormat ? v->ColorAttachmentFormat : VK_FORMAT_B8G8R8A8_UNORM,
+    ImVector<VkFormat> requestSurfaceImageFormats;
+#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
+    for (uint32_t n = 0; n < v->PipelineRenderingCreateInfo.colorAttachmentCount; n++)
+        requestSurfaceImageFormats.push_back(v->PipelineRenderingCreateInfo.pColorAttachmentFormats[n]);
 #endif
-        VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
+    const VkFormat defaultFormats[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
+    for (VkFormat format : defaultFormats)
+        requestSurfaceImageFormats.push_back(format);
+
     const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(v->PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
+    wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(v->PhysicalDevice, wd->Surface, requestSurfaceImageFormats.Data, (size_t)requestSurfaceImageFormats.Size, requestSurfaceColorSpace);
 
     // Select Present Mode
     // FIXME-VULKAN: Even thought mailbox seems to get us maximum framerate with a single window, it halves framerate with a second window etc. (w/ Nvidia and SDK 1.82.1)
@@ -1691,6 +1692,10 @@ static void ImGui_ImplVulkan_CreateWindow(ImGuiViewport* viewport)
     wd->UseDynamicRendering = v->UseDynamicRendering;
     ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
     vd->WindowOwned = true;
+
+    // Create pipeline (shared by all secondary viewports)
+    if (bd->PipelineForViewports == VK_NULL_HANDLE)
+        ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &bd->PipelineForViewports, 0);
 }
 
 static void ImGui_ImplVulkan_DestroyWindow(ImGuiViewport* viewport)
@@ -1727,13 +1732,25 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
     ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
     VkResult err;
 
+    if (vd->SwapChainNeedRebuild)
+    {
+        ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
+        vd->SwapChainNeedRebuild = false;
+    }
+
     ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
     ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex];
     {
         {
-          err = vkAcquireNextImageKHR(v->Device, wd->Swapchain, UINT64_MAX, fsd->ImageAcquiredSemaphore, VK_NULL_HANDLE, &wd->FrameIndex);
-          check_vk_result(err);
-          fd = &wd->Frames[wd->FrameIndex];
+            err = vkAcquireNextImageKHR(v->Device, wd->Swapchain, UINT64_MAX, fsd->ImageAcquiredSemaphore, VK_NULL_HANDLE, &wd->FrameIndex);
+            if (err == VK_ERROR_OUT_OF_DATE_KHR)
+            {
+                // Since we are not going to swap this frame anyway, it's ok that recreation happens on next frame.
+                vd->SwapChainNeedRebuild = true;
+                return;
+            }
+            check_vk_result(err);
+            fd = &wd->Frames[wd->FrameIndex];
         }
         for (;;)
         {
@@ -1805,7 +1822,7 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
         }
     }
 
-    ImGui_ImplVulkan_RenderDrawData(viewport->DrawData, fd->CommandBuffer, wd->Pipeline);
+    ImGui_ImplVulkan_RenderDrawData(viewport->DrawData, fd->CommandBuffer, bd->PipelineForViewports);
 
     {
 #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
@@ -1859,6 +1876,9 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
     ImGui_ImplVulkanH_Window* wd = &vd->Window;
     ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
 
+    if (vd->SwapChainNeedRebuild) // Frame data became invalid in the middle of rendering
+        return;
+
     VkResult err;
     uint32_t present_index = wd->FrameIndex;
 
@@ -1872,9 +1892,11 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
     info.pImageIndices = &present_index;
     err = vkQueuePresentKHR(v->Queue, &info);
     if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
-        ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, &vd->Window, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
-    else
-        check_vk_result(err);
+    {
+        vd->SwapChainNeedRebuild = true;
+        return;
+    }
+    check_vk_result(err);
 
     wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount;             // This is for the next vkWaitForFences()
     wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores

backends/imgui_impl_vulkan.h

@@ -43,18 +43,31 @@
 // If you have no idea what this is, leave it alone!
 //#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES
 
-// Vulkan includes
+// Convenience support for Volk
+// (you can also technically use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().)
+//#define IMGUI_IMPL_VULKAN_USE_VOLK
+
 #if defined(IMGUI_IMPL_VULKAN_NO_PROTOTYPES) && !defined(VK_NO_PROTOTYPES)
 #define VK_NO_PROTOTYPES
 #endif
 #if defined(VK_USE_PLATFORM_WIN32_KHR) && !defined(NOMINMAX)
 #define NOMINMAX
-#include <vulkan/vulkan.h>
+#endif
+
+// Vulkan includes
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+#include <Volk/volk.h>
 #else
 #include <vulkan/vulkan.h>
 #endif
+#if defined(VK_VERSION_1_3) || defined(VK_KHR_dynamic_rendering)
+#define IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
+#endif
 
 // Initialization data, for ImGui_ImplVulkan_Init()
+// - VkDescriptorPool should be created with VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
+//   and must contain a pool size large enough to hold an ImGui VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER descriptor.
+// - When using dynamic rendering, set UseDynamicRendering=true and fill PipelineRenderingCreateInfo structure.
 // [Please zero-clear before use!]
 struct ImGui_ImplVulkan_InitInfo
 {
@@ -63,25 +76,31 @@ struct ImGui_ImplVulkan_InitInfo
     VkDevice                        Device;
     uint32_t                        QueueFamily;
     VkQueue                         Queue;
+    VkDescriptorPool                DescriptorPool;               // See requirements in note above
+    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
+
+    // (Optional)
     VkPipelineCache                 PipelineCache;
-    VkDescriptorPool                DescriptorPool;
     uint32_t                        Subpass;
-    uint32_t                        MinImageCount;          // >= 2
-    uint32_t                        ImageCount;             // >= MinImageCount
-    VkSampleCountFlagBits           MSAASamples;            // >= VK_SAMPLE_COUNT_1_BIT (0 -> default to VK_SAMPLE_COUNT_1_BIT)
 
-    // Dynamic Rendering (Optional)
-    bool                            UseDynamicRendering;    // Need to explicitly enable VK_KHR_dynamic_rendering extension to use this, even for Vulkan 1.3.
-    VkFormat                        ColorAttachmentFormat;  // Required for dynamic rendering
+    // (Optional) Dynamic Rendering
+    // 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;
+#endif
 
-    // Allocation, Debugging
+    // (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.
 };
 
 // Called by user code
-IMGUI_IMPL_API bool         ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass);
+IMGUI_IMPL_API bool         ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info);
 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);
@@ -119,8 +138,8 @@ struct ImGui_ImplVulkanH_Frame;
 struct ImGui_ImplVulkanH_Window;
 
 // Helpers
-IMGUI_IMPL_API void                 ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wnd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
-IMGUI_IMPL_API void                 ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wnd, const VkAllocationCallbacks* allocator);
+IMGUI_IMPL_API void                 ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
+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 int                  ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
@@ -155,7 +174,6 @@ struct ImGui_ImplVulkanH_Window
     VkSurfaceFormatKHR  SurfaceFormat;
     VkPresentModeKHR    PresentMode;
     VkRenderPass        RenderPass;
-    VkPipeline          Pipeline;               // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
     bool                UseDynamicRendering;
     bool                ClearEnable;
     VkClearValue        ClearValue;

backends/imgui_impl_wgpu.cpp

@@ -753,7 +753,7 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
 
     // Create buffers with a default size (they will later be grown as needed)
     bd->pFrameResources = new FrameResources[bd->numFramesInFlight];
-    for (int i = 0; i < bd->numFramesInFlight; i++)
+    for (unsigned int i = 0; i < bd->numFramesInFlight; i++)
     {
         FrameResources* fr = &bd->pFrameResources[i];
         fr->IndexBuffer = nullptr;

backends/imgui_impl_wgpu.h

@@ -34,7 +34,7 @@ struct ImGui_ImplWGPU_InitInfo
     ImGui_ImplWGPU_InitInfo()
     {
         PipelineMultisampleState.count = 1;
-        PipelineMultisampleState.mask = -1u;
+        PipelineMultisampleState.mask = UINT32_MAX;
         PipelineMultisampleState.alphaToCoverageEnabled = false;
     }
 };

backends/imgui_impl_win32.cpp

@@ -17,30 +17,12 @@
 // - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
 // - Introduction, links and more at the top of imgui.cpp
 
-#include "imgui.h"
-#ifndef IMGUI_DISABLE
-#include "imgui_impl_win32.h"
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-#include <windows.h>
-#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
-#include <tchar.h>
-#include <dwmapi.h>
-
-// Configuration flags to add in your imconfig.h file:
+// Configuration flags to add in your imconfig file:
 //#define IMGUI_IMPL_WIN32_DISABLE_GAMEPAD              // Disable gamepad support. This was meaningful before <1.81 but we now load XInput dynamically so the option is now less relevant.
 
-// Using XInput for gamepad (will load DLL dynamically)
-#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
-#include <xinput.h>
-typedef DWORD (WINAPI *PFN_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
-typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
-#endif
-
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
 //  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys, app back/forward keys.
 //  2023-09-25: Inputs: Synthesize key-down event on key-up for VK_SNAPSHOT / ImGuiKey_PrintScreen as Windows doesn't emit it (same behavior as GLFW/SDL).
 //  2023-09-07: Inputs: Added support for keyboard codepage conversion for when application is compiled in MBCS mode and using a non-Unicode window.
@@ -93,8 +75,36 @@ typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
 //  2017-10-23: Inputs: Using Win32 ::SetCapture/::GetCapture() to retrieve mouse positions outside the client area when dragging.
 //  2016-11-12: Inputs: Only call Win32 ::SetCursor(nullptr) when io.MouseDrawCursor is set.
 
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_win32.h"
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
+#include <tchar.h>
+#include <dwmapi.h>
+
+// Using XInput for gamepad (will load DLL dynamically)
+#ifndef IMGUI_IMPL_WIN32_DISABLE_GAMEPAD
+#include <xinput.h>
+typedef DWORD(WINAPI* PFN_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
+typedef DWORD(WINAPI* PFN_XInputGetState)(DWORD, XINPUT_STATE*);
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wcast-function-type"     // warning: cast between incompatible function types (for loader)
+#endif
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-function-type"       // warning: cast between incompatible function types (for loader)
+#endif
+
 // Forward Declarations
-static void ImGui_ImplWin32_InitPlatformInterface(bool platformHasOwnDC);
+static void ImGui_ImplWin32_InitPlatformInterface(bool platform_has_own_dc);
 static void ImGui_ImplWin32_ShutdownPlatformInterface();
 static void ImGui_ImplWin32_UpdateMonitors();
 
@@ -442,9 +452,9 @@ static void ImGui_ImplWin32_UpdateMonitors()
 
 void    ImGui_ImplWin32_NewFrame()
 {
-    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
-    IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplWin32_Init()?");
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized? Did you call ImGui_ImplWin32_Init()?");
+    ImGuiIO& io = ImGui::GetIO();
 
     // Setup display size (every frame to accommodate for window resizing)
     RECT rect = { 0, 0, 0, 0 };
@@ -642,11 +652,13 @@ static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
 
 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().
     if (ImGui::GetCurrentContext() == nullptr)
         return 0;
 
-    ImGuiIO& io = ImGui::GetIO();
     ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplWin32_Init()?");
+    ImGuiIO& io = ImGui::GetIO();
 
     switch (msg)
     {
@@ -1067,10 +1079,20 @@ static void ImGui_ImplWin32_ShowWindow(ImGuiViewport* viewport)
 {
     ImGui_ImplWin32_ViewportData* vd = (ImGui_ImplWin32_ViewportData*)viewport->PlatformUserData;
     IM_ASSERT(vd->Hwnd != 0);
+
+    // ShowParent() also brings parent to front, which is not always desirable,
+    // so we temporarily disable parenting. (#7354)
+    if (vd->HwndParent != NULL)
+        ::SetWindowLongPtr(vd->Hwnd, GWLP_HWNDPARENT, (LONG_PTR)nullptr);
+
     if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
         ::ShowWindow(vd->Hwnd, SW_SHOWNA);
     else
         ::ShowWindow(vd->Hwnd, SW_SHOW);
+
+    // Restore
+    if (vd->HwndParent != NULL)
+        ::SetWindowLongPtr(vd->Hwnd, GWLP_HWNDPARENT, (LONG_PTR)vd->HwndParent);
 }
 
 static void ImGui_ImplWin32_UpdateWindow(ImGuiViewport* viewport)
@@ -1324,4 +1346,11 @@ static void ImGui_ImplWin32_ShutdownPlatformInterface()
 
 //---------------------------------------------------------------------------------------------------------
 
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
 #endif // #ifndef IMGUI_DISABLE

docs/BACKENDS.md

@@ -79,14 +79,14 @@ List of Renderer Backends:
     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 available from SDL 3.0.0+)
     imgui_impl_vulkan.cpp     ; Vulkan
-    imgui_impl_wgpu.cpp       ; WebGPU
+    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 SDL+GL, GLFW+GL and SDL+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
 

docs/CHANGELOG.txt

@@ -36,7 +36,213 @@ HOW TO UPDATE?
 - Please report any issue!
 
 -----------------------------------------------------------------------
- VERSION 1.90.2 (Released 2024-01-09)
+ VERSION 1.90.6 (Released 2024-05-08)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.90.6
+
+Breaking changes:
+
+- TreeNode: Fixed a layout inconsistency when using a empty/hidden label followed
+  by a SameLine() call. (#7505, #282)
+     Before: TreeNode("##Hidden"); SameLine(); Text("Hello");
+             // This was actually incorrect! BUT appeared to look ok with the default style
+             // where ItemSpacing.x == FramePadding.x * 2 (it didn't look aligned otherwise).
+     After:  TreeNode("##Hidden"); SameLine(0, 0); Text("Hello");
+             // This is correct for all values in style.
+  With the fix, IF you were successfully using TreeNode("")+SameLine(); you will now
+  have extra spacing between your TreeNode and the following item. You'll need to change
+  the SameLine() call to SameLine(0,0) to remove this extraneous spacing.
+  This seemed like the more sensible fix that's not making things less consistent.
+  (Note: when using this idiom you are likely to also use ImGuiTreeNodeFlags_SpanAvailWidth).
+
+Other changes:
+
+- Windows: Changed default ClipRect to extend to windows' left and right borders,
+  instead of adding arbitrary WindowPadding.x * 0.5f space on left and right.
+  That ClipRect half-padding was arbitrary/confusing and inconsistent with Y axis.
+  It also made it harder to draw items covering whole window without pushing an
+  extended ClipRect. Some items near windows left and right edge that used to be clipped
+  may be partly more visible. (#3312, #7540, #3756, #6170, #6365)
+- Windows: Fixed subsequent Begin() append calls from setting last item information
+  for title bar, making it impossible to use IsItemHovered() on a Begin()-to-append,
+  and causing issue bypassing hover detection on collapsed windows. (#7506, #823)
+- Fonts: Fixed font ascent and descent calculation when a font hits exact integer values.
+  It is possible that some prior manual use of ImFontConfig::GlyphOffset may become
+  duplicate with this fix. (#7399, #7404) [@GamingMinds-DanielC]
+- TreeNode: Added ImGuiTreeNodeFlags_SpanTextWidth to make hitbox and highlight only
+  cover the label. (#6937) [@dimateos]
+- Tables: Angled headers: fixed multi-line label display when angle is flipped. (#6917)
+- Tables: Angled headers: added style.TableAngledHeadersTextAlign and corresponding
+  ImGuiStyleVar_TableAngledHeadersTextAlign variable. Default to horizontal center. (#6917)
+  [@thedmd, @ocornut]
+- ProgressBar: Added support for indeterminate progress bar by passing an animated
+  negative fraction, e.g. ProgressBar(-1.0f * GetTime()). (#5316, #5370, #1901)[@gan74]
+- Text, DrawList: Improved handling of long single-line wrapped text. Faster and
+  mitigate issues with reading vertex indexing limits with 16-bit indices. (#7496, #5720)
+- Backends: OpenGL3: Detect ES3 contexts on desktop based on version string,
+  to e.g. avoid calling glPolygonMode() on them. (#7447) [@afraidofdark, @ocornut]
+- Backends: OpenGL3: Update loader for Linux to support EGL/GLVND. (#7562) [@ShadowNinja, @vanfanel]
+- Backends: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define.
+  (you could always use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + ImGui_ImplVulkan_LoadFunctions() as well).
+  (#6582, #4854) [@adalsteinnh, @kennyalive, @ocornut]
+- Backends: SDL3: Fixed text inputs. Re-enable calling SDL_StartTextInput()/SDL_StopTextInput()
+  as SDL3 no longer enables it by default. (#7452, #6306, #6071, #1953) [@Green-Sky]
+- Examples: GLFW+Vulkan, SDL+Vulkan: Added optional support for Volk. (#6582, #4854)
+- Examples: GLFW+WebGPU: Added support for WebGPU-native/Dawn (#7435, #7132) [@eliasdaler, @Zelif]
+- Examples: GLFW+WebGPU: Renamed example_emscripten_wgpu/ to example_glfw_wgpu/. (#7435, #7132)
+
+Docking+Viewports Branch:
+
+- Docking: when io.ConfigDockingWithShift is enabled, fixed help tooltip erroneously
+  reading SetNextWindowXXX() data. (#6709, #4643, #7491) [@ocornut, @cfillion]
+- Viewports: fixed outer-right edge of MenuBar clipping rectangle off by one when window
+  is located on a monitor with negative coordinates. (#6861, #2884) [@cfillion]
+- Backends: Vulkan: reworked swap-chain resize handling for secondary viewports, fix for
+  typical Linux setups. (#2626, #3390, #3758, #7508, #7513) [@RoryO, @InsideBSITheSecond]
+- Backends: Vulkan: create a custom pipeline for secondary viewports. Fixes issues
+  when user created main viewport uses a different renderpass. (#6325, #6305, #7398,
+  #3459, #3253, #3522) [@skaman, @FunMiles]
+
+
+-----------------------------------------------------------------------
+ VERSION 1.90.5 (Released 2024-04-11)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.90.5
+
+Breaking changes:
+
+- More formally obsoleted GetKeyIndex() when IMGUI_DISABLE_OBSOLETE_FUNCTIONS is set.
+  It has been unnecessary and a no-op since 1.87 (it returns the same value as passed
+  when used with a 1.87+ backend using io.AddKeyEvent() function). (#4921)
+  - IsKeyPressed(GetKeyIndex(ImGuiKey_XXX)) --> IsKeyPressed(ImGuiKey_XXX)
+- ImDrawList: Merged the radius_x/radius_y parameters in AddEllipse(), AddEllipseFilled()
+  and PathEllipticalArcTo() into a single ImVec2 parameter. Exceptionally, because those
+  functions were added recently in 1.90, we are not adding inline redirection functions.
+  The transition is easy and should affect few users. (#2743, #7417) [@cfillion]
+
+Other changes:
+
+- Windows: Scrollbar visibility decision uses current size when both size and contents
+  size are submitted by API. (#7252)
+- Windows: Double-click to collapse may be disabled via key-ownership mechanism. (#7369)
+- Windows: BeginChild(): Extend outer resize borders to the edges when there are no corner
+  grips. Essentially affects resizable child windows. (#7440, #1710) [@cfillion]
+- Windows: BeginChild(): Resizing logic for child windows evaluates whether per-axis clamping
+  should be applied based on parent scrollbars, not child scrollbars. (#7440, #1710) [@cfillion]
+  Adjust those resizing limits to match window padding rather than inner clipping rectangle.
+- Tables: Fixed auto-width columns when using synced-instances of same table, width of
+  one instance would bleed into next one instead of sharing their widths. (#7218)
+- Tables: Angled headers: fixed border hit box extending beyond when used within
+  non-scrollable tables. (#7416) [@cfillion]
+- Tables: Angled headers: fixed borders not moving back up after TableAngleHeadersRow()
+  stops being called. (#7416) [@cfillion]
+- Tables: Angled headers: rounding header size to nearest integers, fixes some issues
+  when using clipper.
+- Menus, Popups: Fixed an issue where sibling menu popups re-opening in successive
+  frames would erroneously close the window. While it is technically a popup issue
+  it would generally manifest when fast moving the mouse bottom to top in a sub-menu.
+  (#7325, #7287, #7063)
+- ProgressBar: Fixed passing fraction==NaN from leading to a crash. (#7451)
+- ListBox: Fixed text-baseline offset when using SameLine()+Text() after a labeled ListBox().
+- Drags, Sliders, Inputs: Fixed io.PlatformLocaleDecimalPoint decimal point localization
+  feature not working regression from 1.90.1. (#7389, #6719, #2278) [@GamingMinds-DanielC]
+- Style: Added ImGuiStyleVar_TabBorderSize, ImGuiStyleVar_TableAngledHeadersAngle for
+  consistency. (#7411) [@cfillion]
+- DrawList: Added AddConcavePolyFilled(), PathFillConcave() concave filling. (#760) [@thedmd]
+  Note that only simple polygons (no self-intersections, no holes) are supported.
+- DrawList: Allow AddText() to accept null ranges. (#3615, 7391)
+- Docs: added more wiki links to headers of imgui.h/imgui.cpp to facilitate discovery
+  of interesting resources, because github doesn't allow Wiki to be crawled by search engines.
+  - This is the main wiki: https://github.com/ocornut/imgui/wiki
+  - This is the crawlable version: https://github-wiki-see.page/m/ocornut/imgui/wiki
+    Adding a link to the crawlable version, even though it is not intended for humans,
+    to increase its search rank.
+
+Docking+Viewports Branch:
+
+- Backends: Win32: made it so that an appearing viewport showing up doesn't bring
+  its parent to front. (#7354)
+
+
+-----------------------------------------------------------------------
+ VERSION 1.90.4 (Released 2024-02-22)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.90.4
+
+Other changes:
+
+- Nav: Fixed SetKeyboardFocusHere() or programmatic tabbing API from not working on
+  windows with the ImGuiWindowFlags_NoNavInputs flag (regression in 1.90.2, which
+  among other things broke imgui_memory_editor).
+- Menus, Popups: Fixed an issue where hovering a parent-menu upward would
+  erroneously close the window. (#7325, #7287, #7063)
+- Popups: Fixed resizable popup minimum size being too small. Standardized minimum
+  size logic. (#7329).
+- Modals: Temporary changes of ImGuiCol_ModalWindowDimBg are properly handled by
+  BeginPopupModal(). (#7340)
+- Tables: Angled headers: fixed support for multi-line labels. (#6917)
+- Tables: Angled headers: various fixes to accurately handle CellPadding changes. (#6917)
+- Tables: Angled headers: properly registers horizontal component of angled headers
+  for auto-resizing of columns. (#6917)
+- Tables: Angled headers: fixed TableAngledHeadersRow() incorrect background fill
+  drawn too low, particularly visible with tables that have no scrolling. (#6917)
+- ProgressBar: Fixed a minor tessellation issue when rendering rounded progress bars,
+  where in some situations the rounded section wouldn't follow regular tessellation rules.
+- Debug Tools: Item Picker: Promoted ImGui::DebugStartItemPicker() to public API. (#2673)
+- Debug Tools: Item Picker: Menu entry visible in Demo->Tools but greyed out unless
+  io.ConfigDebugIsDebuggerPresent is set. (#2673)
+- Misc: Added optional alpha multiplier parameter to GetColorU32(ImU32) variant.
+- Demo: Custom Rendering: better demonstrate PathArcTo(), PathBezierQuadraticCurveTo(),
+  PathBezierCubicCurveTo(), PathStroke(), PathFillConvex() functions.
+
+Docking+Viewports Branch:
+
+- Backends: GLFW: enable ImGuiBackendFlags_HasMouseHoveredViewport support with GLFW 3.3.x,
+  as required specs for it was relaxed in 1.87. This enable better viewport hovering detection
+  without GLFW 3.4's GLFW_MOUSE_PASSTHROUGH, with less reliance on dear imgui's own heuristic
+  of platform windows order. (#7316)
+
+
+-----------------------------------------------------------------------
+ VERSION 1.90.3 (Released 2024-02-14)
+-----------------------------------------------------------------------
+
+Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.90.3
+
+Breaking changes:
+
+- Backends: SDL2: Removed obsolete ImGui_ImplSDL2_NewFrame(SDL_Window*) signature which
+  was obsoleted in 1.84. Calling ImGui_ImplSDL2_NewFrame() is fine.
+- Backends: Vulkan: Moved RenderPass parameter from ImGui_ImplVulkan_Init() function to
+  ImGui_ImplVulkan_InitInfo structure. Not required when using dynamic rendering. (#7308) [@shawnhatori]
+- Backends: Vulkan: Using dynamic rendering now require filling the PipelineRenderingCreateInfo
+  structure in ImGui_ImplVulkan_InitInfo, allowing to configure color/depth/stencil formats.
+  Removed ColorAttachmentFormat field previously provided for dynamic rendering.
+  (#7166, #6855, #5446, #5037) [@shawnhatori]
+
+Other changes:
+
+- Menus, Popups: Fixed menus and popups with ChildWindow flag erroneously not displaying
+  a scrollbar when contents is over parent viewport size. (#7287, #7063) [@ZingBallyhoo]
+- Backends: SDL2, SDL3: Handle gamepad disconnection + fixed increasing gamepad reference
+  counter continuously. Added support for multiple simultaneous gamepads.
+  Added ImGui_ImplSDL2_SetGamepadMode()) function to select whether to automatically pick
+  first available gamepad, all gamepads, or specific gamepads.
+  (#3884, #6559, #6890, #7180) [@ocornut, @lethal-guitar, @wn2000, @bog-dan-ro]
+- Backends: SDL3: Fixed gamepad handling. (#7180) [@bog-dan-ro]
+- Backends: SDLRenderer3: query newly added SDL_RenderViewportSet() to not restore
+  a wrong viewport if none was initially set.
+- Backends: DirectX9: Using RGBA format when allowed by the driver to avoid CPU side
+  conversion. (#6575) [@Demonese]
+- Internals: Fixed ImFileOpen not working before context is created, preventing creation
+  of a font atlas before main context creation. (#7314, #7315) [@PathogenDavid, @ocornut]
+
+
+-----------------------------------------------------------------------
+ VERSION 1.90.2 (Released 2024-02-09)
 -----------------------------------------------------------------------
 
 Decorated log and release notes: https://github.com/ocornut/imgui/releases/tag/v1.90.2
@@ -209,7 +415,7 @@ Docking+Viewports Branch:
 - Backends: DX12: Changed swapchain scaling mode to DXGI_SCALING_NONE to reduce artifacts as
   queued frames aren't synchronized with platform window resizes. (#7152, #7153) [@SuperWangKai]
 - Backends: OSX: Fixed monitor and window position by correctly transforming Y origin on multi-viewports
-  multi-monitor setups. (#7028, #7101, #6009, #6432) [@dmirty-kuzmenko, @734vin] 
+  multi-monitor setups. (#7028, #7101, #6009, #6432) [@dmirty-kuzmenko, @734vin]
 - Backends: OSX: Fixed IME position in multi-monitor multi-viewports setups. (#7028) [@734vin]
 
 
@@ -332,7 +538,7 @@ Other changes:
     with ImGuiDragDropFlags_AcceptNoPreviewTooltip and submitting a tooltip manually.
 - Tables:
   - Added angled headers support. You need to set ImGuiTableColumnFlags_AngledHeader on selected
-    columns and call TableAngledHeadersRow(). Added style.TableAngledHeadersAngle style option.
+    columns and call TableAngledHeadersRow(). Added style.TableAngledHeadersAngle style option. (#6917)
   - Added ImGuiTableFlags_HighlightHoveredColumn flag, currently highlighting column header.
   - Fixed an edge-case when no columns are visible + table scrollbar is visible + user
     code is always testing return value of TableSetColumnIndex() to coarse clip. With an active

docs/CONTRIBUTING.md

@@ -58,7 +58,7 @@ Steps:
 - 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.
 
 **Some unfortunate words of warning**
-- If you are involved in cheating schemes (e.g. DLL injection) for competitive online multiplayer games, please don't post here. We won't answer and you will be blocked. It doesn't matter if your question relates to said project. We've had too many of you and need to project our time and sanity.
+- If you are involved in cheating schemes (e.g. DLL injection) for competitive online multiplayer games, please don't post here. We won't answer and you will be blocked. It doesn't matter if your question relates to said project. We've had too many of you and need to protect our time and sanity.
 - Due to frequent abuse of this service from the aforementioned users, if your GitHub account is anonymous and was created five minutes ago please understand that your post will receive more scrutiny and incomplete questions will be harshly dismissed.
 
 If you have been using Dear ImGui for a while or have been using C/C++ for several years or have demonstrated good behavior here, it is ok to not fulfill every item to the letter. Those are guidelines and experienced users or members of the community will know which information is useful in a given context.

docs/EXAMPLES.md

@@ -104,8 +104,8 @@ OSX + OpenGL2 example. <BR>
 (NB: imgui_impl_osx.mm is currently not as feature complete as other platforms backends.
  You may prefer to use the GLFW Or SDL backends, which will also support Windows and Linux.)
 
-[example_emscripten_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_emscripten_wgpu/) <BR>
-Emcripten + GLFW + WebGPU example. <BR>
+[example_glfw_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_wgpu/) <BR>
+GLFW + WebGPU example. Supports Emscripten (web) or Dawn (desktop) <BR>
 = main.cpp + imgui_impl_glfw.cpp + imgui_impl_wgpu.cpp
 Note that the 'example_glfw_opengl3' and 'example_sdl2_opengl3' examples also supports Emscripten!
 

docs/FAQ.md

@@ -621,8 +621,8 @@ You may take a look at:
 
 - [Quotes](https://github.com/ocornut/imgui/wiki/Quotes)
 - [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui)
-- [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors)
-- [Gallery](https://github.com/ocornut/imgui/issues/6897)
+- [Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding)
+- [Gallery](https://github.com/ocornut/imgui/issues/7503)
 
 ##### [Return to Index](#index)
 
@@ -664,11 +664,11 @@ There is an auto-generated [c-api for Dear ImGui (cimgui)](https://github.com/ci
 # Q&A: Community
 
 ### Q: How can I help?
-- Businesses: please reach out to `omar AT dearimgui.com` if you work in a place using Dear ImGui! We can discuss ways for your company to fund development via invoiced technical support, maintenance, or sponsoring contacts. This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people to work on this project.
+- Businesses: please reach out to `omar AT dearimgui.com` if you work in a place using Dear ImGui! We can discuss ways for your company to fund development via invoiced technical support, maintenance, or sponsoring contacts. This is among the most useful thing you can do for Dear ImGui. With increased funding, we can hire more people to work on this project. Please see [Funding](https://github.com/ocornut/imgui/wiki/Funding) page.
 - Individuals: you can support continued maintenance and development via PayPal donations. See [README](https://github.com/ocornut/imgui/blob/master/docs/README.md).
 - If you are experienced with Dear ImGui and C++, look at [GitHub Issues](https://github.com/ocornut/imgui/issues), [GitHub Discussions](https://github.com/ocornut/imgui/discussions), the [Wiki](https://github.com/ocornut/imgui/wiki), read [docs/TODO.txt](https://github.com/ocornut/imgui/blob/master/docs/TODO.txt), and see how you want to help and can help!
 - Disclose your usage of Dear ImGui via a dev blog post, a tweet, a screenshot, a mention somewhere, etc.
-You may post screenshots or links in the [gallery threads](https://github.com/ocornut/imgui/issues/6897). Visuals are ideal as they inspire other programmers. Disclosing your use of Dear ImGui helps the library grow credibility, and helps other teams and programmers with taking decisions.
+You may post screenshots or links in the [gallery threads](https://github.com/ocornut/imgui/issues/7503). Visuals are ideal as they inspire other programmers. Disclosing your use of Dear ImGui helps the library grow credibility, and helps other teams and programmers with taking decisions.
 - If you have issues or if you need to hack into the library, even if you don't expect any support it is useful that you share your issues or sometimes incomplete PR.
 
 ##### [Return to Index](#index)

docs/README.md

@@ -11,11 +11,11 @@ Dear ImGui
 
 Businesses: support continued development and maintenance via invoiced sponsoring/support contracts:
 <br>&nbsp;&nbsp;_E-mail: contact @ dearimgui dot com_
-<br>Individuals: support continued development and maintenance [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WGHNC6MBFLZ2S). Also see [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors) page.
+<br>Individuals: support continued development and maintenance [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=WGHNC6MBFLZ2S). Also see [Funding](https://github.com/ocornut/imgui/wiki/Funding) page.
 
 | [The Pitch](#the-pitch) - [Usage](#usage) - [How it works](#how-it-works) - [Releases & Changelogs](#releases--changelogs) - [Demo](#demo) - [Integration](#integration) |
 :----------------------------------------------------------: |
-| [Gallery](#gallery) - [Support, FAQ](#support-frequently-asked-questions-faq) -  [How to help](#how-to-help) - [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors) - [Credits](#credits) - [License](#license) |
+| [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) - [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
@@ -141,7 +141,7 @@ Also see [Wiki](https://github.com/ocornut/imgui/wiki) for more links and ideas.
 
 Examples projects using Dear ImGui: [Tracy](https://github.com/wolfpld/tracy) (profiler), [ImHex](https://github.com/WerWolv/ImHex) (hex editor/data analysis), [RemedyBG](https://remedybg.itch.io/remedybg) (debugger) and [hundreds of others](https://github.com/ocornut/imgui/wiki/Software-using-Dear-ImGui).
 
-For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues/6897)!
+For more user-submitted screenshots of projects using Dear ImGui, check out the [Gallery Threads](https://github.com/ocornut/imgui/issues/7503)!
 
 For a list of third-party widgets and extensions, check out the [Useful Extensions/Widgets](https://github.com/ocornut/imgui/wiki/Useful-Extensions) wiki page.
 
@@ -162,6 +162,8 @@ See: [Upcoming Changes](https://github.com/ocornut/imgui/wiki/Upcoming-Changes).
 
 See: [Dear ImGui Test Engine + Test Suite](https://github.com/ocornut/imgui_test_engine) for Automation & Testing.
 
+For the purposes of getting search engines to crawl the wiki, here's a link to the [Crawable Wiki](https://github-wiki-see.page/m/ocornut/imgui/wiki) (not for humans, [here's why](https://github-wiki-see.page/)).
+
 Getting started? For first-time users having issues compiling/linking/running or issues loading fonts, please use [GitHub Discussions](https://github.com/ocornut/imgui/discussions). For ANY other questions, bug reports, requests, feedback, please post on [GitHub Issues](https://github.com/ocornut/imgui/issues). Please read and fill the New Issue template carefully.
 
 Private support is available for paying business customers (E-mail: _contact @ dearimgui dot com_).
@@ -172,7 +174,7 @@ We occasionally tag [Releases](https://github.com/ocornut/imgui/releases) (with
 
 **Who uses Dear ImGui?**
 
-See the [Quotes](https://github.com/ocornut/imgui/wiki/Quotes), [Sponsors](https://github.com/ocornut/imgui/wiki/Sponsors), and [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) Wiki pages for an idea of who is using Dear ImGui. Please add your game/software if you can! Also, see the [Gallery Threads](https://github.com/ocornut/imgui/issues/6897)!
+See the [Quotes](https://github.com/ocornut/imgui/wiki/Quotes), [Funding & Sponsors](https://github.com/ocornut/imgui/wiki/Funding), and [Software using Dear ImGui](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui) Wiki pages for an idea of who is using Dear ImGui. Please add your game/software if you can! Also, see the [Gallery Threads](https://github.com/ocornut/imgui/issues/7503)!
 
 How to help
 -----------
@@ -182,13 +184,13 @@ 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 [sponsor](https://github.com/ocornut/imgui/wiki/Sponsors)! 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).
+- 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
 --------
 
 Ongoing Dear ImGui development is and has been financially supported by users and private sponsors.
-<BR>Please see the **[detailed list of current and past Dear ImGui supporters](https://github.com/ocornut/imgui/wiki/Sponsors)** for details.
+<BR>Please see the **[detailed list of current and past Dear ImGui funding supporters and sponsors](https://github.com/ocornut/imgui/wiki/Funding)** for details.
 <BR>From November 2014 to December 2019, ongoing development has also been financially supported by its users on Patreon and through individual donations.
 
 **THANK YOU to all past and present supporters for helping to keep this project alive and thriving!**
@@ -205,7 +207,7 @@ Developed by [Omar Cornut](https://www.miracleworld.net) and every direct or ind
 
 Recurring contributors include Rokas Kupstys [@rokups](https://github.com/rokups) (2020-2022): a good portion of work on automation system and regression tests now available in [Dear ImGui Test Engine](https://github.com/ocornut/imgui_test_engine).
 
-Sponsoring, maintenance/support contracts and other B2B transactions are hosted and handled by [Disco Hello](https://www.discohello.com).
+Maintenance/support contracts, sponsoring invoices and other B2B transactions are hosted and handled by [Disco Hello](https://www.discohello.com).
 
 Omar: "I first discovered the IMGUI paradigm at [Q-Games](https://www.q-games.com) where Atman Binstock had dropped his own simple implementation in the codebase, which I spent quite some time improving and thinking about. It turned out that Atman was exposed to the concept directly by working with Casey. When I moved to Media Molecule I rewrote a new library trying to overcome the flaws and limitations of the first one I've worked with. It became this library and since then I have spent an unreasonable amount of time iterating and improving it."
 

examples/example_glfw_metal/Makefile

@@ -14,10 +14,10 @@ SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 
 LIBS = -framework Metal -framework MetalKit -framework Cocoa -framework IOKit -framework CoreVideo -framework QuartzCore
-LIBS += -L/usr/local/lib -L/opt/homebrew/lib
+LIBS += -L/usr/local/lib -L/opt/homebrew/lib -L/opt/local/lib
 LIBS += -lglfw
 
-CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I/usr/local/include -I/opt/homebrew/include
+CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends -I/usr/local/include -I/opt/homebrew/include -I/opt/local/include
 CXXFLAGS += -Wall -Wformat
 CFLAGS = $(CXXFLAGS)
 

examples/example_glfw_vulkan/main.cpp

@@ -21,8 +21,12 @@
 #define GLFW_INCLUDE_NONE
 #define GLFW_INCLUDE_VULKAN
 #include <GLFW/glfw3.h>
-#include <vulkan/vulkan.h>
-//#include <vulkan/vulkan_beta.h>
+
+// Volk headers
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+#define VOLK_IMPLEMENTATION
+#include <Volk/volk.h>
+#endif
 
 // [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
 // To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma.
@@ -113,6 +117,9 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
 static void SetupVulkan(ImVector<const char*> instance_extensions)
 {
     VkResult err;
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+    volkInitialize();
+#endif
 
     // Create Vulkan Instance
     {
@@ -151,17 +158,20 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         create_info.ppEnabledExtensionNames = instance_extensions.Data;
         err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
         check_vk_result(err);
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+        volkLoadInstance(g_Instance);
+#endif
 
         // Setup the debug report callback
 #ifdef APP_USE_VULKAN_DEBUG_REPORT
-        auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
-        IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
+        auto f_vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
+        IM_ASSERT(f_vkCreateDebugReportCallbackEXT != nullptr);
         VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
         debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
         debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
         debug_report_ci.pfnCallback = debug_report;
         debug_report_ci.pUserData = nullptr;
-        err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
+        err = f_vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
         check_vk_result(err);
 #endif
     }
@@ -277,8 +287,8 @@ static void CleanupVulkan()
 
 #ifdef APP_USE_VULKAN_DEBUG_REPORT
     // Remove the debug report callback
-    auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
-    vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
+    auto f_vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
+    f_vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
 #endif // APP_USE_VULKAN_DEBUG_REPORT
 
     vkDestroyDevice(g_Device, g_Allocator);
@@ -446,13 +456,14 @@ int main(int, char**)
     init_info.Queue = g_Queue;
     init_info.PipelineCache = g_PipelineCache;
     init_info.DescriptorPool = g_DescriptorPool;
+    init_info.RenderPass = wd->RenderPass;
     init_info.Subpass = 0;
     init_info.MinImageCount = g_MinImageCount;
     init_info.ImageCount = wd->ImageCount;
     init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
     init_info.Allocator = g_Allocator;
     init_info.CheckVkResultFn = check_vk_result;
-    ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
+    ImGui_ImplVulkan_Init(&init_info);
 
     // 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.

examples/example_glfw_wgpu/CMakeLists.txt

@@ -0,0 +1,100 @@
+# Building for desktop (WebGPU-native) with Dawn:
+#  1. git clone https://github.com/google/dawn dawn
+#  2. cmake -B build -DIMGUI_DAWN_DIR=dawn
+#  3. cmake --build build
+# The resulting binary will be found at one of the following locations:
+#   * build/Debug/example_glfw_wgpu[.exe]
+#   * build/example_glfw_wgpu[.exe]
+
+# Building for Emscripten:
+#  1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
+#  2. Install Ninja build system
+#  3. emcmake cmake -G Ninja -B build
+#  3. cmake --build build
+#  4. emrun build/index.html
+
+cmake_minimum_required(VERSION 3.10.2)
+project(imgui_example_glfw_wgpu C CXX)
+
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
+endif()
+
+set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
+
+# Dear ImGui
+set(IMGUI_DIR ../../)
+
+# Libraries
+if(EMSCRIPTEN)
+  set(LIBRARIES glfw)
+  add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
+else()
+  # Dawn wgpu desktop
+  set(DAWN_FETCH_DEPENDENCIES ON)
+  set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
+  if (NOT IMGUI_DAWN_DIR)
+    message(FATAL_ERROR "Please specify the Dawn repository by setting IMGUI_DAWN_DIR")
+  endif()
+
+  option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
+
+  # Dawn builds many things by default - disable things we don't need
+  option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
+  option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
+  option(TINT_BUILD_DOCS "Build documentation" OFF)
+  option(TINT_BUILD_TESTS "Build tests" OFF)
+  if (NOT APPLE)
+    option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
+  endif()
+  if(WIN32)
+    option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
+    option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
+    option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
+    option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
+    option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" OFF)
+    option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
+  endif()
+
+  add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
+
+  set(LIBRARIES webgpu_dawn webgpu_cpp webgpu_glfw glfw)
+endif()
+
+add_executable(example_glfw_wgpu
+  main.cpp
+  # backend files
+  ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
+  ${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
+  # Dear ImGui files
+  ${IMGUI_DIR}/imgui.cpp
+  ${IMGUI_DIR}/imgui_draw.cpp
+  ${IMGUI_DIR}/imgui_demo.cpp
+  ${IMGUI_DIR}/imgui_tables.cpp
+  ${IMGUI_DIR}/imgui_widgets.cpp
+)
+target_include_directories(example_glfw_wgpu PUBLIC
+  ${IMGUI_DIR}
+  ${IMGUI_DIR}/backends
+)
+
+target_link_libraries(example_glfw_wgpu PUBLIC ${LIBRARIES})
+
+# Emscripten settings
+if(EMSCRIPTEN)
+  target_link_options(example_glfw_wgpu PRIVATE
+    "-sUSE_WEBGPU=1"
+    "-sUSE_GLFW=3"
+    "-sWASM=1"
+    "-sALLOW_MEMORY_GROWTH=1"
+    "-sNO_EXIT_RUNTIME=0"
+    "-sASSERTIONS=1"
+    "-sDISABLE_EXCEPTION_CATCHING=1"
+    "-sNO_FILESYSTEM=1"
+  )
+  set_target_properties(example_glfw_wgpu PROPERTIES OUTPUT_NAME "index")
+  # copy our custom index.html to build directory
+  add_custom_command(TARGET example_glfw_wgpu POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_LIST_DIR}/web/index.html" $<TARGET_FILE_DIR:example_glfw_wgpu>
+  )
+endif()

examples/example_glfw_wgpu/README.md

@@ -6,7 +6,7 @@
 
 - You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
 
-- Then build using `make -f Makefile.emscripten` while in the `example_emscripten_wgpu/` directory.
+- Then build using `make -f Makefile.emscripten` while in the `example_glfw_wgpu/` directory.
 
 - Requires recent Emscripten as WGPU is still a work-in-progress API.
 
@@ -18,7 +18,7 @@ To run on a local machine:
 - Otherwise, generally you will need a local webserver:
   - Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
 _"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
-  - Emscripten SDK has a handy `emrun` command: `emrun web/example_emscripten_opengl3.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
+  - Emscripten SDK has a handy `emrun` command: `emrun web/example_glfw_wgpu.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
   - You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
   - You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
   - If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).

examples/example_glfw_wgpu/main.cpp

@@ -1,5 +1,6 @@
-// Dear ImGui: standalone example application for Emscripten, using GLFW + WebGPU
-// (Emscripten is a C++-to-javascript compiler, used to publish executables for the web. See https://emscripten.org/)
+// Dear ImGui: standalone example application for using GLFW + WebGPU
+// - Emscripten is supported for publishing on web. See https://emscripten.org.
+// - Dawn is used as a WebGPU implementation on desktop.
 
 // Learn about Dear ImGui:
 // - FAQ                  https://dearimgui.com/faq
@@ -11,11 +12,15 @@
 #include "imgui_impl_glfw.h"
 #include "imgui_impl_wgpu.h"
 #include <stdio.h>
+
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
 #include <emscripten/html5.h>
 #include <emscripten/html5_webgpu.h>
+#else
+#include <webgpu/webgpu_glfw.h>
 #endif
+
 #include <GLFW/glfw3.h>
 #include <webgpu/webgpu.h>
 #include <webgpu/webgpu_cpp.h>
@@ -26,15 +31,16 @@
 #endif
 
 // Global WebGPU required states
+static WGPUInstance      wgpu_instance = nullptr;
 static WGPUDevice        wgpu_device = nullptr;
 static WGPUSurface       wgpu_surface = nullptr;
 static WGPUTextureFormat wgpu_preferred_fmt = WGPUTextureFormat_RGBA8Unorm;
 static WGPUSwapChain     wgpu_swap_chain = nullptr;
-static int               wgpu_swap_chain_width = 0;
-static int               wgpu_swap_chain_height = 0;
+static int               wgpu_swap_chain_width = 1280;
+static int               wgpu_swap_chain_height = 720;
 
 // Forward declarations
-static bool InitWGPU();
+static bool InitWGPU(GLFWwindow* window);
 static void CreateSwapChain(int width, int height);
 
 static void glfw_error_callback(int error, const char* description)
@@ -66,18 +72,19 @@ int main(int, char**)
     // Make sure GLFW does not initialize any graphics context.
     // This needs to be done explicitly later.
     glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
-    GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
+    GLFWwindow* window = glfwCreateWindow(wgpu_swap_chain_width, wgpu_swap_chain_height, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
     if (window == nullptr)
         return 1;
 
     // Initialize the WebGPU environment
-    if (!InitWGPU())
+    if (!InitWGPU(window))
     {
         if (window)
             glfwDestroyWindow(window);
         glfwTerminate();
         return 1;
     }
+    CreateSwapChain(wgpu_swap_chain_width, wgpu_swap_chain_height);
     glfwShowWindow(window);
 
     // Setup Dear ImGui context
@@ -115,7 +122,7 @@ int main(int, char**)
     //io.Fonts->AddFontDefault();
 #ifndef IMGUI_DISABLE_FILE_FUNCTIONS
     //io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf", 18.0f);
-    io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf", 16.0f);
+    //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);
@@ -148,7 +155,7 @@ int main(int, char**)
         // React to changes in screen size
         int width, height;
         glfwGetFramebufferSize((GLFWwindow*)window, &width, &height);
-        if (width != wgpu_swap_chain_width && height != wgpu_swap_chain_height)
+        if (width != wgpu_swap_chain_width || height != wgpu_swap_chain_height)
         {
             ImGui_ImplWGPU_InvalidateDeviceObjects();
             CreateSwapChain(width, height);
@@ -200,7 +207,13 @@ int main(int, char**)
         // Rendering
         ImGui::Render();
 
+#ifndef __EMSCRIPTEN__
+        // Tick needs to be called in Dawn to display validation errors
+        wgpuDeviceTick(wgpu_device);
+#endif
+
         WGPURenderPassColorAttachment color_attachments = {};
+        color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
         color_attachments.loadOp = WGPULoadOp_Clear;
         color_attachments.storeOp = WGPUStoreOp_Store;
         color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
@@ -222,6 +235,15 @@ int main(int, char**)
         WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
         WGPUQueue queue = wgpuDeviceGetQueue(wgpu_device);
         wgpuQueueSubmit(queue, 1, &cmd_buffer);
+
+#ifndef __EMSCRIPTEN__
+        wgpuSwapChainPresent(wgpu_swap_chain);
+#endif
+
+        wgpuTextureViewRelease(color_attachments.view);
+        wgpuRenderPassEncoderRelease(pass);
+        wgpuCommandEncoderRelease(encoder);
+        wgpuCommandBufferRelease(cmd_buffer);
     }
 #ifdef __EMSCRIPTEN__
     EMSCRIPTEN_MAINLOOP_END;
@@ -238,29 +260,72 @@ int main(int, char**)
     return 0;
 }
 
-static bool InitWGPU()
+#ifndef __EMSCRIPTEN__
+static WGPUAdapter RequestAdapter(WGPUInstance instance)
 {
+    auto onAdapterRequestEnded = [](WGPURequestAdapterStatus status, WGPUAdapter adapter, const char* message, void* pUserData)
+    {
+        if (status == WGPURequestAdapterStatus_Success)
+            *(WGPUAdapter*)(pUserData) = adapter;
+        else
+            printf("Could not get WebGPU adapter: %s\n", message);
+};
+    WGPUAdapter adapter;
+    wgpuInstanceRequestAdapter(instance, nullptr, onAdapterRequestEnded, (void*)&adapter);
+    return adapter;
+}
+
+static WGPUDevice RequestDevice(WGPUAdapter& adapter)
+{
+    auto onDeviceRequestEnded = [](WGPURequestDeviceStatus status, WGPUDevice device, const char* message, void* pUserData)
+    {
+        if (status == WGPURequestDeviceStatus_Success)
+            *(WGPUDevice*)(pUserData) = device;
+        else
+            printf("Could not get WebGPU device: %s\n", message);
+    };
+    WGPUDevice device;
+    wgpuAdapterRequestDevice(adapter, nullptr, onDeviceRequestEnded, (void*)&device);
+    return device;
+}
+#endif
+
+static bool InitWGPU(GLFWwindow* window)
+{
+    wgpu::Instance instance = wgpuCreateInstance(nullptr);
+
+#ifdef __EMSCRIPTEN__
     wgpu_device = emscripten_webgpu_get_device();
     if (!wgpu_device)
         return false;
+#else
+    WGPUAdapter adapter = RequestAdapter(instance.Get());
+    if (!adapter)
+        return false;
+    wgpu_device = RequestDevice(adapter);
+#endif
 
-    wgpuDeviceSetUncapturedErrorCallback(wgpu_device, wgpu_error_callback, nullptr);
-
-    // Use C++ wrapper due to misbehavior in Emscripten.
-    // Some offset computation for wgpuInstanceCreateSurface in JavaScript
-    // seem to be inline with struct alignments in the C++ structure
+#ifdef __EMSCRIPTEN__
     wgpu::SurfaceDescriptorFromCanvasHTMLSelector html_surface_desc = {};
     html_surface_desc.selector = "#canvas";
-
     wgpu::SurfaceDescriptor surface_desc = {};
     surface_desc.nextInChain = &html_surface_desc;
-
-    wgpu::Instance instance = wgpuCreateInstance(nullptr);
     wgpu::Surface surface = instance.CreateSurface(&surface_desc);
+
     wgpu::Adapter adapter = {};
     wgpu_preferred_fmt = (WGPUTextureFormat)surface.GetPreferredFormat(adapter);
+#else
+    wgpu::Surface surface = wgpu::glfw::CreateSurfaceForWindow(instance, window);
+    if (!surface)
+        return false;
+    wgpu_preferred_fmt = WGPUTextureFormat_BGRA8Unorm;
+#endif
+
+    wgpu_instance = instance.MoveToCHandle();
     wgpu_surface = surface.MoveToCHandle();
 
+    wgpuDeviceSetUncapturedErrorCallback(wgpu_device, wgpu_error_callback, nullptr);
+
     return true;
 }
 

examples/example_glfw_wgpu/web/index.html

@@ -3,7 +3,7 @@
   <head>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
-    <title>Dear ImGui Emscripten+WebGPU example</title>
+    <title>Dear ImGui Emscripten+GLFW+WebGPU example</title>
     <style>
         body { margin: 0; background-color: black }
         .emscripten {
@@ -63,6 +63,10 @@
 
       // Initialize the graphics adapter
       {
+          if (!navigator.gpu) {
+            throw Error("WebGPU not supported.");
+          }
+
           const adapter = await navigator.gpu.requestAdapter();
           const device = await adapter.requestDevice();
           Module.preinitializedWebGPUDevice = device;

examples/example_sdl2_vulkan/main.cpp

@@ -20,8 +20,12 @@
 #include <stdlib.h>         // abort
 #include <SDL.h>
 #include <SDL_vulkan.h>
-#include <vulkan/vulkan.h>
-//#include <vulkan/vulkan_beta.h>
+
+// Volk headers
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+#define VOLK_IMPLEMENTATION
+#include <Volk/volk.h>
+#endif
 
 //#define APP_USE_UNLIMITED_FRAME_RATE
 #ifdef _DEBUG
@@ -101,6 +105,9 @@ static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
 static void SetupVulkan(ImVector<const char*> instance_extensions)
 {
     VkResult err;
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+    volkInitialize();
+#endif
 
     // Create Vulkan Instance
     {
@@ -139,17 +146,20 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
         create_info.ppEnabledExtensionNames = instance_extensions.Data;
         err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
         check_vk_result(err);
+#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
+        volkLoadInstance(g_Instance);
+#endif
 
         // Setup the debug report callback
 #ifdef APP_USE_VULKAN_DEBUG_REPORT
-        auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
-        IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
+        auto f_vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
+        IM_ASSERT(f_vkCreateDebugReportCallbackEXT != nullptr);
         VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
         debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
         debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
         debug_report_ci.pfnCallback = debug_report;
         debug_report_ci.pUserData = nullptr;
-        err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
+        err = f_vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
         check_vk_result(err);
 #endif
     }
@@ -265,8 +275,8 @@ static void CleanupVulkan()
 
 #ifdef APP_USE_VULKAN_DEBUG_REPORT
     // Remove the debug report callback
-    auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
-    vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
+    auto f_vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
+    f_vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
 #endif // APP_USE_VULKAN_DEBUG_REPORT
 
     vkDestroyDevice(g_Device, g_Allocator);
@@ -446,13 +456,14 @@ int main(int, char**)
     init_info.Queue = g_Queue;
     init_info.PipelineCache = g_PipelineCache;
     init_info.DescriptorPool = g_DescriptorPool;
+    init_info.RenderPass = wd->RenderPass;
     init_info.Subpass = 0;
     init_info.MinImageCount = g_MinImageCount;
     init_info.ImageCount = wd->ImageCount;
     init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
     init_info.Allocator = g_Allocator;
     init_info.CheckVkResultFn = check_vk_result;
-    ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
+    ImGui_ImplVulkan_Init(&init_info);
 
     // 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.

examples/example_sdl3_sdlrenderer3/main.cpp

@@ -42,7 +42,7 @@ int main(int, char**)
         printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
         return -1;
     }
-    SDL_Renderer* renderer = SDL_CreateRenderer(window, nullptr, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
+    SDL_Renderer* renderer = SDL_CreateRenderer(window, nullptr, SDL_RENDERER_PRESENTVSYNC);
     if (renderer == nullptr)
     {
         SDL_Log("Error: SDL_CreateRenderer(): %s\n", SDL_GetError());

imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6 WIP
 // (headers)
 
 // Help:
@@ -7,15 +7,19 @@
 // - Read top of imgui.cpp for more details, links and comments.
 
 // Resources:
-// - FAQ                   https://dearimgui.com/faq
-// - Getting Started       https://dearimgui.com/getting-started
-// - Homepage              https://github.com/ocornut/imgui
-// - Releases & changelog  https://github.com/ocornut/imgui/releases
-// - Gallery               https://github.com/ocornut/imgui/issues/6897 (please post your screenshots/video there!)
-// - Wiki                  https://github.com/ocornut/imgui/wiki (lots of good stuff there)
-// - Glossary              https://github.com/ocornut/imgui/wiki/Glossary
-// - Issues & support      https://github.com/ocornut/imgui/issues
-// - Tests & Automation    https://github.com/ocornut/imgui_test_engine
+// - FAQ ........................ https://dearimgui.com/faq (in repository as docs/FAQ.md)
+// - Homepage ................... https://github.com/ocornut/imgui
+// - Releases & changelog ....... https://github.com/ocornut/imgui/releases
+// - Gallery .................... https://github.com/ocornut/imgui/issues/7503 (please post your screenshots/video there!)
+// - Wiki ....................... https://github.com/ocornut/imgui/wiki (lots of good stuff there)
+//   - Getting Started            https://github.com/ocornut/imgui/wiki/Getting-Started (how to integrate in an existing app by adding ~25 lines of code)
+//   - Third-party Extensions     https://github.com/ocornut/imgui/wiki/Useful-Extensions (ImPlot & many more)
+//   - Bindings/Backends          https://github.com/ocornut/imgui/wiki/Bindings (language bindings, backends for various tech/engines)
+//   - Glossary                   https://github.com/ocornut/imgui/wiki/Glossary
+//   - Debug Tools                https://github.com/ocornut/imgui/wiki/Debug-Tools
+//   - Software using Dear ImGui  https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui
+// - Issues & support ........... https://github.com/ocornut/imgui/issues
+// - Test Engine & Automation ... https://github.com/ocornut/imgui_test_engine (test suite, test engine to automate your apps)
 
 // For first-time users having issues compiling/linking/running/loading fonts:
 // please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.
@@ -23,8 +27,8 @@
 
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
-#define IMGUI_VERSION       "1.90.2"
-#define IMGUI_VERSION_NUM   19020
+#define IMGUI_VERSION       "1.90.6"
+#define IMGUI_VERSION_NUM   19060
 #define IMGUI_HAS_TABLE
 #define IMGUI_HAS_VIEWPORT          // Viewport WIP branch
 #define IMGUI_HAS_DOCK              // Docking WIP branch
@@ -128,6 +132,7 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe
 #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
 #pragma clang diagnostic ignored "-Wreserved-identifier"            // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wpragmas"          // warning: unknown option after '#pragma GCC diagnostic' kind
@@ -176,8 +181,9 @@ struct ImGuiWindowClass;            // Window class (rare/advanced uses: provide
 // Enumerations
 // - We don't use strongly typed enums much because they add constraints (can't extend in private code, can't store typed in bit fields, extra casting on iteration)
 // - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
-//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
-//   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+//   - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
+//   - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
 enum ImGuiKey : int;                // -> enum ImGuiKey              // Enum: A key identifier (ImGuiKey_XXX or ImGuiMod_XXX value)
 enum ImGuiMouseSource : int;        // -> enum ImGuiMouseSource      // Enum; A mouse input source identifier (Mouse, TouchScreen, Pen)
 typedef int ImGuiCol;               // -> enum ImGuiCol_             // Enum: A color identifier for styling
@@ -192,8 +198,9 @@ typedef int ImGuiTableBgTarget;     // -> enum ImGuiTableBgTarget_   // Enum: A
 
 // Flags (declared as int to allow using as flags without overhead, and to not pollute the top of this file)
 // - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
-//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
-//   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+//   - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
+//   - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
 typedef int ImDrawFlags;            // -> enum ImDrawFlags_          // Flags: for ImDrawList functions
 typedef int ImDrawListFlags;        // -> enum ImDrawListFlags_      // Flags: for ImDrawList instance
 typedef int ImFontAtlasFlags;       // -> enum ImFontAtlasFlags_     // Flags: for ImFontAtlas build
@@ -454,7 +461,7 @@ namespace ImGui
     IMGUI_API ImVec2        GetFontTexUvWhitePixel();                                       // get UV coordinate for a while pixel, useful to draw custom shapes via the ImDrawList API
     IMGUI_API ImU32         GetColorU32(ImGuiCol idx, float alpha_mul = 1.0f);              // retrieve given style color with style alpha applied and optional extra alpha multiplier, packed as a 32-bit value suitable for ImDrawList
     IMGUI_API ImU32         GetColorU32(const ImVec4& col);                                 // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
-    IMGUI_API ImU32         GetColorU32(ImU32 col);                                         // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
+    IMGUI_API ImU32         GetColorU32(ImU32 col, float alpha_mul = 1.0f);                 // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList
     IMGUI_API const ImVec4& GetStyleColorVec4(ImGuiCol idx);                                // retrieve style color as stored in ImGuiStyle structure. use to feed back into PushStyleColor(), otherwise use GetColorU32() to get style color with style alpha baked in.
 
     // Layout cursor positioning
@@ -998,6 +1005,7 @@ namespace ImGui
     // - Your main debugging friend is the ShowMetricsWindow() function, which is also accessible from Demo->Tools->Metrics Debugger
     IMGUI_API void          DebugTextEncoding(const char* text);
     IMGUI_API void          DebugFlashStyleColor(ImGuiCol idx);
+    IMGUI_API void          DebugStartItemPicker();
     IMGUI_API bool          DebugCheckVersionAndDataLayout(const char* version_str, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_drawvert, size_t sz_drawidx); // This is called by IMGUI_CHECKVERSION() macro.
 
     // Memory Allocators
@@ -1137,11 +1145,12 @@ enum ImGuiTreeNodeFlags_
     ImGuiTreeNodeFlags_Leaf                 = 1 << 8,   // No collapsing, no arrow (use as a convenience for leaf nodes).
     ImGuiTreeNodeFlags_Bullet               = 1 << 9,   // Display a bullet instead of arrow. IMPORTANT: node can still be marked open/close if you don't set the _Leaf flag!
     ImGuiTreeNodeFlags_FramePadding         = 1 << 10,  // Use FramePadding (even for an unframed text node) to vertically align text baseline to regular widget height. Equivalent to calling AlignTextToFramePadding().
-    ImGuiTreeNodeFlags_SpanAvailWidth       = 1 << 11,  // Extend hit box to the right-most edge, even if not framed. This is not the default in order to allow adding other items on the same line. In the future we may refactor the hit system to be front-to-back, allowing natural overlaps and then this can become the default.
-    ImGuiTreeNodeFlags_SpanFullWidth        = 1 << 12,  // Extend hit box to the left-most and right-most edges (bypass the indented area).
-    ImGuiTreeNodeFlags_SpanAllColumns       = 1 << 13,  // Frame will span all columns of its container table (text will still fit in current column)
-    ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 14,  // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
-    //ImGuiTreeNodeFlags_NoScrollOnOpen     = 1 << 15,  // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
+    ImGuiTreeNodeFlags_SpanAvailWidth       = 1 << 11,  // Extend hit box to the right-most edge, even if not framed. This is not the default in order to allow adding other items on the same line without using AllowOverlap mode.
+    ImGuiTreeNodeFlags_SpanFullWidth        = 1 << 12,  // Extend hit box to the left-most and right-most edges (cover the indent area).
+    ImGuiTreeNodeFlags_SpanTextWidth        = 1 << 13,  // Narrow hit box + narrow hovering highlight, will only cover the label text.
+    ImGuiTreeNodeFlags_SpanAllColumns       = 1 << 14,  // Frame will span all columns of its container table (text will still fit in current column)
+    ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 15,  // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
+    //ImGuiTreeNodeFlags_NoScrollOnOpen     = 1 << 16,  // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
     ImGuiTreeNodeFlags_CollapsingHeader     = ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_NoAutoOpenOnLog,
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
@@ -1622,42 +1631,46 @@ enum ImGuiCol_
 // - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code.
 //   During initialization or between frames, feel free to just poke into ImGuiStyle directly.
 // - Tip: Use your programming IDE navigation facilities on the names in the _second column_ below to find the actual members and their description.
-//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
-//   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+//   - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
+//   - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
 // - When changing this enum, you need to update the associated internal table GStyleVarInfo[] accordingly. This is where we link enum values to members offset/type.
 enum ImGuiStyleVar_
 {
-    // Enum name --------------------- // Member in ImGuiStyle structure (see ImGuiStyle for descriptions)
-    ImGuiStyleVar_Alpha,               // float     Alpha
-    ImGuiStyleVar_DisabledAlpha,       // float     DisabledAlpha
-    ImGuiStyleVar_WindowPadding,       // ImVec2    WindowPadding
-    ImGuiStyleVar_WindowRounding,      // float     WindowRounding
-    ImGuiStyleVar_WindowBorderSize,    // float     WindowBorderSize
-    ImGuiStyleVar_WindowMinSize,       // ImVec2    WindowMinSize
-    ImGuiStyleVar_WindowTitleAlign,    // ImVec2    WindowTitleAlign
-    ImGuiStyleVar_ChildRounding,       // float     ChildRounding
-    ImGuiStyleVar_ChildBorderSize,     // float     ChildBorderSize
-    ImGuiStyleVar_PopupRounding,       // float     PopupRounding
-    ImGuiStyleVar_PopupBorderSize,     // float     PopupBorderSize
-    ImGuiStyleVar_FramePadding,        // ImVec2    FramePadding
-    ImGuiStyleVar_FrameRounding,       // float     FrameRounding
-    ImGuiStyleVar_FrameBorderSize,     // float     FrameBorderSize
-    ImGuiStyleVar_ItemSpacing,         // ImVec2    ItemSpacing
-    ImGuiStyleVar_ItemInnerSpacing,    // ImVec2    ItemInnerSpacing
-    ImGuiStyleVar_IndentSpacing,       // float     IndentSpacing
-    ImGuiStyleVar_CellPadding,         // ImVec2    CellPadding
-    ImGuiStyleVar_ScrollbarSize,       // float     ScrollbarSize
-    ImGuiStyleVar_ScrollbarRounding,   // float     ScrollbarRounding
-    ImGuiStyleVar_GrabMinSize,         // float     GrabMinSize
-    ImGuiStyleVar_GrabRounding,        // float     GrabRounding
-    ImGuiStyleVar_TabRounding,         // float     TabRounding
-    ImGuiStyleVar_TabBarBorderSize,    // float     TabBarBorderSize
-    ImGuiStyleVar_ButtonTextAlign,     // ImVec2    ButtonTextAlign
-    ImGuiStyleVar_SelectableTextAlign, // ImVec2    SelectableTextAlign
-    ImGuiStyleVar_SeparatorTextBorderSize,// float  SeparatorTextBorderSize
-    ImGuiStyleVar_SeparatorTextAlign,  // ImVec2    SeparatorTextAlign
-    ImGuiStyleVar_SeparatorTextPadding,// ImVec2    SeparatorTextPadding
-    ImGuiStyleVar_DockingSeparatorSize,// float     DockingSeparatorSize
+    // Enum name -------------------------- // Member in ImGuiStyle structure (see ImGuiStyle for descriptions)
+    ImGuiStyleVar_Alpha,                    // float     Alpha
+    ImGuiStyleVar_DisabledAlpha,            // float     DisabledAlpha
+    ImGuiStyleVar_WindowPadding,            // ImVec2    WindowPadding
+    ImGuiStyleVar_WindowRounding,           // float     WindowRounding
+    ImGuiStyleVar_WindowBorderSize,         // float     WindowBorderSize
+    ImGuiStyleVar_WindowMinSize,            // ImVec2    WindowMinSize
+    ImGuiStyleVar_WindowTitleAlign,         // ImVec2    WindowTitleAlign
+    ImGuiStyleVar_ChildRounding,            // float     ChildRounding
+    ImGuiStyleVar_ChildBorderSize,          // float     ChildBorderSize
+    ImGuiStyleVar_PopupRounding,            // float     PopupRounding
+    ImGuiStyleVar_PopupBorderSize,          // float     PopupBorderSize
+    ImGuiStyleVar_FramePadding,             // ImVec2    FramePadding
+    ImGuiStyleVar_FrameRounding,            // float     FrameRounding
+    ImGuiStyleVar_FrameBorderSize,          // float     FrameBorderSize
+    ImGuiStyleVar_ItemSpacing,              // ImVec2    ItemSpacing
+    ImGuiStyleVar_ItemInnerSpacing,         // ImVec2    ItemInnerSpacing
+    ImGuiStyleVar_IndentSpacing,            // float     IndentSpacing
+    ImGuiStyleVar_CellPadding,              // ImVec2    CellPadding
+    ImGuiStyleVar_ScrollbarSize,            // float     ScrollbarSize
+    ImGuiStyleVar_ScrollbarRounding,        // float     ScrollbarRounding
+    ImGuiStyleVar_GrabMinSize,              // float     GrabMinSize
+    ImGuiStyleVar_GrabRounding,             // float     GrabRounding
+    ImGuiStyleVar_TabRounding,              // float     TabRounding
+    ImGuiStyleVar_TabBorderSize,            // float     TabBorderSize
+    ImGuiStyleVar_TabBarBorderSize,         // float     TabBarBorderSize
+    ImGuiStyleVar_TableAngledHeadersAngle,  // float     TableAngledHeadersAngle
+    ImGuiStyleVar_TableAngledHeadersTextAlign,// ImVec2  TableAngledHeadersTextAlign
+    ImGuiStyleVar_ButtonTextAlign,          // ImVec2    ButtonTextAlign
+    ImGuiStyleVar_SelectableTextAlign,      // ImVec2    SelectableTextAlign
+    ImGuiStyleVar_SeparatorTextBorderSize,  // float     SeparatorTextBorderSize
+    ImGuiStyleVar_SeparatorTextAlign,       // ImVec2    SeparatorTextAlign
+    ImGuiStyleVar_SeparatorTextPadding,     // ImVec2    SeparatorTextPadding
+    ImGuiStyleVar_DockingSeparatorSize,     // float     DockingSeparatorSize
     ImGuiStyleVar_COUNT
 };
 
@@ -2072,7 +2085,7 @@ struct ImGuiStyle
     float       FrameBorderSize;            // Thickness of border around frames. Generally set to 0.0f or 1.0f. (Other values are not well tested and more CPU/GPU costly).
     ImVec2      ItemSpacing;                // Horizontal and vertical spacing between widgets/lines.
     ImVec2      ItemInnerSpacing;           // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label).
-    ImVec2      CellPadding;                // Padding within a table cell. CellPadding.y may be altered between different rows.
+    ImVec2      CellPadding;                // Padding within a table cell. Cellpadding.x is locked for entire table. CellPadding.y may be altered between different rows.
     ImVec2      TouchExtraPadding;          // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
     float       IndentSpacing;              // Horizontal indentation when e.g. entering a tree node. Generally == (FontSize + FramePadding.x*2).
     float       ColumnsMinSpacing;          // Minimum horizontal spacing between two columns. Preferably > (FramePadding.x + 1).
@@ -2086,6 +2099,7 @@ struct ImGuiStyle
     float       TabMinWidthForCloseButton;  // Minimum width for close button to appear on an unselected tab when hovered. Set to 0.0f to always show when hovering, set to FLT_MAX to never show close button unless selected.
     float       TabBarBorderSize;           // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
     float       TableAngledHeadersAngle;    // Angle of angled headers (supported values range from -50.0f degrees to +50.0f degrees).
+    ImVec2      TableAngledHeadersTextAlign;// Alignment of angled headers within the cell
     ImGuiDir    ColorButtonPosition;        // Side of the color button in the ColorEdit4 widget (left/right). Defaults to ImGuiDir_Right.
     ImVec2      ButtonTextAlign;            // Alignment of button text when button is larger than text. Defaults to (0.5f, 0.5f) (centered).
     ImVec2      SelectableTextAlign;        // Alignment of selectable text. Defaults to (0.0f, 0.0f) (top-left aligned). It's generally important to keep this left-aligned if you want to lay multiple items on a same line.
@@ -2120,6 +2134,9 @@ struct ImGuiStyle
 //-----------------------------------------------------------------------------
 // Communicate most settings and inputs/outputs to Dear ImGui using this structure.
 // Access via ImGui::GetIO(). Read 'Programmer guide' section in .cpp file for general usage.
+// It is generally expected that:
+// - initialization: backends and user code writes to ImGuiIO.
+// - main loop: backends writes to ImGuiIO, user code and imgui code reads from ImGuiIO.
 //-----------------------------------------------------------------------------
 
 // [Internal] Storage used by IsKeyDown(), IsKeyPressed() etc functions.
@@ -2279,16 +2296,6 @@ struct ImGuiIO
     int         MetricsActiveWindows;               // Number of active windows
     ImVec2      MouseDelta;                         // Mouse delta. Note that this is zero if either current or previous position are invalid (-FLT_MAX,-FLT_MAX), so a disappearing/reappearing mouse won't have a huge delta.
 
-    // Legacy: before 1.87, we required backend to fill io.KeyMap[] (imgui->native map) during initialization and io.KeysDown[] (native indices) every frame.
-    // This is still temporarily supported as a legacy feature. However the new preferred scheme is for backend to call io.AddKeyEvent().
-    //   Old (<1.87):  ImGui::IsKeyPressed(ImGui::GetIO().KeyMap[ImGuiKey_Space]) --> New (1.87+) ImGui::IsKeyPressed(ImGuiKey_Space)
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    int         KeyMap[ImGuiKey_COUNT];             // [LEGACY] Input: map of indices into the KeysDown[512] entries array which represent your "native" keyboard state. The first 512 are now unused and should be kept zero. Legacy backend will write into KeyMap[] using ImGuiKey_ indices which are always >512.
-    bool        KeysDown[ImGuiKey_COUNT];           // [LEGACY] Input: Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys). This used to be [512] sized. It is now ImGuiKey_COUNT to allow legacy io.KeysDown[GetKeyIndex(...)] to work without an overflow.
-    float       NavInputs[ImGuiNavInput_COUNT];     // [LEGACY] Since 1.88, NavInputs[] was removed. Backends from 1.60 to 1.86 won't build. Feed gamepad inputs via io.AddKeyEvent() and ImGuiKey_GamepadXXX enums.
-    //void*     ImeWindowHandle;                    // [Obsoleted in 1.87] Set ImGuiViewport::PlatformHandleRaw instead. Set this to your HWND to get automatic IME cursor positioning.
-#endif
-
     //------------------------------------------------------------------
     // [Internal] Dear ImGui will maintain those fields. Forward compatibility not guaranteed!
     //------------------------------------------------------------------
@@ -2336,6 +2343,16 @@ struct ImGuiIO
     ImWchar16   InputQueueSurrogate;                // For AddInputCharacterUTF16()
     ImVector<ImWchar> InputQueueCharacters;         // Queue of _characters_ input (obtained by platform backend). Fill using AddInputCharacter() helper.
 
+    // Legacy: before 1.87, we required backend to fill io.KeyMap[] (imgui->native map) during initialization and io.KeysDown[] (native indices) every frame.
+    // This is still temporarily supported as a legacy feature. However the new preferred scheme is for backend to call io.AddKeyEvent().
+    //   Old (<1.87):  ImGui::IsKeyPressed(ImGui::GetIO().KeyMap[ImGuiKey_Space]) --> New (1.87+) ImGui::IsKeyPressed(ImGuiKey_Space)
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    int         KeyMap[ImGuiKey_COUNT];             // [LEGACY] Input: map of indices into the KeysDown[512] entries array which represent your "native" keyboard state. The first 512 are now unused and should be kept zero. Legacy backend will write into KeyMap[] using ImGuiKey_ indices which are always >512.
+    bool        KeysDown[ImGuiKey_COUNT];           // [LEGACY] Input: Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys). This used to be [512] sized. It is now ImGuiKey_COUNT to allow legacy io.KeysDown[GetKeyIndex(...)] to work without an overflow.
+    float       NavInputs[ImGuiNavInput_COUNT];     // [LEGACY] Since 1.88, NavInputs[] was removed. Backends from 1.60 to 1.86 won't build. Feed gamepad inputs via io.AddKeyEvent() and ImGuiKey_GamepadXXX enums.
+    //void*     ImeWindowHandle;                    // [Obsoleted in 1.87] Set ImGuiViewport::PlatformHandleRaw instead. Set this to your HWND to get automatic IME cursor positioning.
+#endif
+
     IMGUI_API   ImGuiIO();
 };
 
@@ -2360,6 +2377,8 @@ struct ImGuiInputTextCallbackData
     void*               UserData;       // What user passed to InputText()      // Read-only
 
     // Arguments for the different callback events
+    // - During Resize callback, Buf will be same as your input buffer.
+    // - However, during Completion/History/Always callback, Buf always points to our own internal data (it is not the same as your buffer)! Changes to it will be reflected into your own buffer shortly after the callback.
     // - To modify the text buffer in a callback, prefer using the InsertChars() / DeleteChars() function. InsertChars() will take care of calling the resize callback if necessary.
     // - If you know your edits are not going to resize the underlying buffer allocation, you may modify the contents of 'Buf[]' directly. You need to update 'BufTextLen' accordingly (0 <= BufTextLen < BufSize) and set 'BufDirty'' to true so InputText can update its internal state.
     ImWchar             EventChar;      // Character input                      // Read-write   // [CharFilter] Replace character with another one, or set to zero to drop. return 1 is equivalent to setting EventChar=0;
@@ -2825,15 +2844,15 @@ struct ImDrawList
     // [Internal, used while building lists]
     unsigned int            _VtxCurrentIdx;     // [Internal] generally == VtxBuffer.Size unless we are past 64K vertices, in which case this gets reset to 0.
     ImDrawListSharedData*   _Data;              // Pointer to shared draw data (you can use ImGui::GetDrawListSharedData() to get the one from current ImGui context)
-    const char*             _OwnerName;         // Pointer to owner window's name for debugging
     ImDrawVert*             _VtxWritePtr;       // [Internal] point within VtxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
     ImDrawIdx*              _IdxWritePtr;       // [Internal] point within IdxBuffer.Data after each add command (to avoid using the ImVector<> operators too much)
-    ImVector<ImVec4>        _ClipRectStack;     // [Internal]
-    ImVector<ImTextureID>   _TextureIdStack;    // [Internal]
     ImVector<ImVec2>        _Path;              // [Internal] current path building
     ImDrawCmdHeader         _CmdHeader;         // [Internal] template of active commands. Fields should match those of CmdBuffer.back().
     ImDrawListSplitter      _Splitter;          // [Internal] for channels api (note: prefer using your own persistent instance of ImDrawListSplitter!)
+    ImVector<ImVec4>        _ClipRectStack;     // [Internal]
+    ImVector<ImTextureID>   _TextureIdStack;    // [Internal]
     float                   _FringeScale;       // [Internal] anti-alias fringe is scaled by this value, this helps to keep things sharp while zooming at vertex buffer content
+    const char*             _OwnerName;         // Pointer to owner window's name for debugging
 
     // If you want to create ImDrawList instances, pass them ImGui::GetDrawListSharedData() or create and use your own ImDrawListSharedData (so you can use ImDrawList without ImGui)
     ImDrawList(ImDrawListSharedData* shared_data) { memset(this, 0, sizeof(*this)); _Data = shared_data; }
@@ -2866,15 +2885,20 @@ struct ImDrawList
     IMGUI_API void  AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments = 0);
     IMGUI_API void  AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness = 1.0f);
     IMGUI_API void  AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments);
-    IMGUI_API void  AddEllipse(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot = 0.0f, int num_segments = 0, float thickness = 1.0f);
-    IMGUI_API void  AddEllipseFilled(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot = 0.0f, int num_segments = 0);
+    IMGUI_API void  AddEllipse(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot = 0.0f, int num_segments = 0, float thickness = 1.0f);
+    IMGUI_API void  AddEllipseFilled(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot = 0.0f, int num_segments = 0);
     IMGUI_API void  AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
     IMGUI_API void  AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
-    IMGUI_API void  AddPolyline(const ImVec2* points, int num_points, ImU32 col, ImDrawFlags flags, float thickness);
-    IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
     IMGUI_API void  AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0); // Cubic Bezier (4 control points)
     IMGUI_API void  AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments = 0);               // Quadratic Bezier (3 control points)
 
+    // General polygon
+    // - Only simple polygons are supported by filling functions (no self-intersections, no holes).
+    // - Concave polygon fill is more expensive than convex one: it has O(N^2) complexity. Provided as a convenience fo user but not used by main library.
+    IMGUI_API void  AddPolyline(const ImVec2* points, int num_points, ImU32 col, ImDrawFlags flags, float thickness);
+    IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
+    IMGUI_API void  AddConcavePolyFilled(const ImVec2* points, int num_points, ImU32 col);
+
     // Image primitives
     // - Read FAQ to understand what ImTextureID is.
     // - "p_min" and "p_max" represent the upper-left and lower-right corners of the rectangle.
@@ -2884,15 +2908,17 @@ struct ImDrawList
     IMGUI_API void  AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags = 0);
 
     // Stateful path API, add points then finish with PathFillConvex() or PathStroke()
-    // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
+    // - Important: filled shapes must always use clockwise winding order! The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
+    //   so e.g. 'PathArcTo(center, radius, PI * -0.5f, PI)' is ok, whereas 'PathArcTo(center, radius, PI, PI * -0.5f)' won't have correct anti-aliasing when followed by PathFillConvex().
     inline    void  PathClear()                                                 { _Path.Size = 0; }
     inline    void  PathLineTo(const ImVec2& pos)                               { _Path.push_back(pos); }
     inline    void  PathLineToMergeDuplicate(const ImVec2& pos)                 { if (_Path.Size == 0 || memcmp(&_Path.Data[_Path.Size - 1], &pos, 8) != 0) _Path.push_back(pos); }
     inline    void  PathFillConvex(ImU32 col)                                   { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }
+    inline    void  PathFillConcave(ImU32 col)                                  { AddConcavePolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }
     inline    void  PathStroke(ImU32 col, ImDrawFlags flags = 0, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, flags, thickness); _Path.Size = 0; }
     IMGUI_API void  PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 0);
     IMGUI_API void  PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12);                // Use precomputed angles for a 12 steps circle
-    IMGUI_API void  PathEllipticalArcTo(const ImVec2& center, float radius_x, float radius_y, float rot, float a_min, float a_max, int num_segments = 0); // Ellipse
+    IMGUI_API void  PathEllipticalArcTo(const ImVec2& center, const ImVec2& radius, float rot, float a_min, float a_max, int num_segments = 0); // Ellipse
     IMGUI_API void  PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0); // Cubic Bezier (4 control points)
     IMGUI_API void  PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments = 0);               // Quadratic Bezier (3 control points)
     IMGUI_API void  PathRect(const ImVec2& rect_min, const ImVec2& rect_max, float rounding = 0.0f, ImDrawFlags flags = 0);
@@ -2925,6 +2951,9 @@ struct ImDrawList
     inline    void  PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col)         { PrimWriteIdx((ImDrawIdx)_VtxCurrentIdx); PrimWriteVtx(pos, uv, col); } // Write vertex with unique index
 
     // Obsolete names
+    //inline  void  AddEllipse(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot = 0.0f, int num_segments = 0, float thickness = 1.0f) { AddEllipse(center, ImVec2(radius_x, radius_y), col, rot, num_segments, thickness); } // OBSOLETED in 1.90.5 (Mar 2024)
+    //inline  void  AddEllipseFilled(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot = 0.0f, int num_segments = 0) { AddEllipseFilled(center, ImVec2(radius_x, radius_y), col, rot, num_segments); }                        // OBSOLETED in 1.90.5 (Mar 2024)
+    //inline  void  PathEllipticalArcTo(const ImVec2& center, float radius_x, float radius_y, float rot, float a_min, float a_max, int num_segments = 0) { PathEllipticalArcTo(center, ImVec2(radius_x, radius_y), rot, a_min, a_max, num_segments); } // OBSOLETED in 1.90.5 (Mar 2024)
     //inline  void  AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0) { AddBezierCubic(p1, p2, p3, p4, col, thickness, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
     //inline  void  PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0) { PathBezierCubicCurveTo(p2, p3, p4, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
 
@@ -3425,15 +3454,6 @@ struct ImGuiPlatformImeData
 // Please keep your copy of dear imgui up to date! Occasionally set '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in imconfig.h to stay ahead.
 //-----------------------------------------------------------------------------
 
-namespace ImGui
-{
-#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
-    IMGUI_API ImGuiKey     GetKeyIndex(ImGuiKey key);  // map ImGuiKey_* values into legacy native key index. == io.KeyMap[key]
-#else
-    static inline ImGuiKey GetKeyIndex(ImGuiKey key)   { IM_ASSERT(key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END && "ImGuiKey and native_index was merged together and native_index is disabled by IMGUI_DISABLE_OBSOLETE_KEYIO. Please switch to ImGuiKey."); return key; }
-#endif
-}
-
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 namespace ImGui
 {
@@ -3455,6 +3475,9 @@ namespace ImGui
     // OBSOLETED in 1.88 (from May 2022)
     static inline void  CaptureKeyboardFromApp(bool want_capture_keyboard = true)           { SetNextFrameWantCaptureKeyboard(want_capture_keyboard); } // Renamed as name was misleading + removed default value.
     static inline void  CaptureMouseFromApp(bool want_capture_mouse = true)                 { SetNextFrameWantCaptureMouse(want_capture_mouse); }       // Renamed as name was misleading + removed default value.
+    // OBSOLETED in 1.87 (from February 2022)
+    IMGUI_API ImGuiKey  GetKeyIndex(ImGuiKey key);                                          // Map ImGuiKey_* values into legacy native key index. == io.KeyMap[key]. When using a 1.87+ backend using io.AddKeyEvent(), calling GetKeyIndex() with ANY ImGuiKey_XXXX values will return the same value!
+    //static inline ImGuiKey GetKeyIndex(ImGuiKey key)                                      { IM_ASSERT(key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END); return key; }
 
     // Some of the older obsolete names along with their replacement (commented out so they are not reported in IDE)
     //-- OBSOLETED in 1.86 (from November 2021)

imgui_demo.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6
 // (demo code)
 
 // Help:
@@ -7,9 +7,14 @@
 // - Need help integrating Dear ImGui in your codebase?
 //   - Read Getting Started https://github.com/ocornut/imgui/wiki/Getting-Started
 //   - Read 'Programmer guide' in imgui.cpp for notes on how to setup Dear ImGui in your codebase.
-// Read imgui.cpp for more details, documentation and comments.
+// Read top of imgui.cpp and imgui.h for many details, documentation, comments, links.
 // Get the latest version at https://github.com/ocornut/imgui
 
+// How to easily locate code?
+// - Use the Item Picker to debug break in code by clicking any widgets: https://github.com/ocornut/imgui/wiki/Debug-Tools
+// - Browse an online version the demo with code linked to hovered widgets: https://pthom.github.io/imgui_manual_online/manual/imgui_manual.html
+// - Find a visible string and search for it in the code!
+
 //---------------------------------------------------
 // PLEASE DO NOT REMOVE THIS FILE FROM YOUR PROJECT!
 //---------------------------------------------------
@@ -54,8 +59,9 @@
 //   Because we can't assume anything about your support of maths operators, we cannot use them in imgui_demo.cpp.
 
 // Navigating this file:
-// - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
-// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+// - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
+// - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
 
 /*
 
@@ -131,6 +137,7 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
 #pragma clang diagnostic ignored "-Wreserved-id-macro"              // warning: macro name is a reserved identifier
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wint-to-pointer-cast"      // warning: cast to pointer from integer of different size
@@ -418,6 +425,12 @@ void ImGui::ShowDemoWindow(bool* p_open)
             ImGui::MenuItem("Debug Log", NULL, &show_tool_debug_log, has_debug_tools);
             ImGui::MenuItem("ID Stack Tool", NULL, &show_tool_id_stack_tool, has_debug_tools);
             ImGui::MenuItem("Style Editor", NULL, &show_tool_style_editor);
+            bool is_debugger_present = ImGui::GetIO().ConfigDebugIsDebuggerPresent;
+            if (ImGui::MenuItem("Item Picker", NULL, false, has_debug_tools && is_debugger_present))
+                ImGui::DebugStartItemPicker();
+            if (!is_debugger_present)
+                ImGui::SetItemTooltip("Requires io.ConfigDebugIsDebuggerPresent=true to be set.\n\nWe otherwise disable the menu option to avoid casual users crashing the application.\n\nYou can however always access the Item Picker in Metrics->Tools.");
+            ImGui::Separator();
             ImGui::MenuItem("About Dear ImGui", NULL, &show_tool_about);
             ImGui::EndMenu();
         }
@@ -954,13 +967,18 @@ static void ShowDemoWindowWidgets()
                 if (i == 0)
                     ImGui::SetNextItemOpen(true, ImGuiCond_Once);
 
-                if (ImGui::TreeNode((void*)(intptr_t)i, "Child %d", i))
+                // Here we use PushID() to generate a unique base ID, and then the "" used as TreeNode id won't conflict.
+                // An alternative to using 'PushID() + TreeNode("", ...)' to generate a unique ID is to use 'TreeNode((void*)(intptr_t)i, ...)',
+                // aka generate a dummy pointer-sized value to be hashed. The demo below uses that technique. Both are fine.
+                ImGui::PushID(i);
+                if (ImGui::TreeNode("", "Child %d", i))
                 {
                     ImGui::Text("blah blah");
                     ImGui::SameLine();
                     if (ImGui::SmallButton("button")) {}
                     ImGui::TreePop();
                 }
+                ImGui::PopID();
             }
             ImGui::TreePop();
         }
@@ -978,7 +996,10 @@ static void ShowDemoWindowWidgets()
             ImGui::CheckboxFlags("ImGuiTreeNodeFlags_OpenOnDoubleClick", &base_flags, ImGuiTreeNodeFlags_OpenOnDoubleClick);
             ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAvailWidth",    &base_flags, ImGuiTreeNodeFlags_SpanAvailWidth); ImGui::SameLine(); HelpMarker("Extend hit area to all available width instead of allowing more items to be laid out after the node.");
             ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth",     &base_flags, ImGuiTreeNodeFlags_SpanFullWidth);
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanTextWidth",     &base_flags, ImGuiTreeNodeFlags_SpanTextWidth); ImGui::SameLine(); HelpMarker("Reduce hit area to the text label and a bit of margin.");
             ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAllColumns",    &base_flags, ImGuiTreeNodeFlags_SpanAllColumns); ImGui::SameLine(); HelpMarker("For use in Tables only.");
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_AllowOverlap",      &base_flags, ImGuiTreeNodeFlags_AllowOverlap);
+            ImGui::CheckboxFlags("ImGuiTreeNodeFlags_Framed",            &base_flags, ImGuiTreeNodeFlags_Framed); ImGui::SameLine(); HelpMarker("Draw frame with background (e.g. for CollapsingHeader)");
             ImGui::Checkbox("Align label with current X position", &align_label_with_current_x_position);
             ImGui::Checkbox("Test tree node as drag source", &test_drag_and_drop);
             ImGui::Text("Hello!");
@@ -1011,6 +1032,12 @@ static void ShowDemoWindowWidgets()
                         ImGui::Text("This is a drag and drop source");
                         ImGui::EndDragDropSource();
                     }
+                    if (i == 2)
+                    {
+                        // Item 2 has an additional inline button to help demonstrate SpanTextWidth.
+                        ImGui::SameLine();
+                        if (ImGui::SmallButton("button")) {}
+                    }
                     if (node_open)
                     {
                         ImGui::BulletText("Blah blah\nBlah Blah");
@@ -1343,6 +1370,7 @@ static void ShowDemoWindowWidgets()
             }
             ImGui::EndListBox();
         }
+        ImGui::SameLine(); HelpMarker("Here we are sharing selection state between both boxes.");
 
         // Custom size: use all width, 5 items tall
         ImGui::Text("Full-width:");
@@ -1873,10 +1901,10 @@ static void ShowDemoWindowWidgets()
         ImGui::Checkbox("Animate", &animate);
 
         // Plot as lines and plot as histogram
-        IMGUI_DEMO_MARKER("Widgets/Plotting/PlotLines, PlotHistogram");
         static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
         ImGui::PlotLines("Frame Times", arr, IM_ARRAYSIZE(arr));
         ImGui::PlotHistogram("Histogram", arr, IM_ARRAYSIZE(arr), 0, NULL, 0.0f, 1.0f, ImVec2(0, 80.0f));
+        //ImGui::SameLine(); HelpMarker("Consider using ImPlot instead!");
 
         // Fill an array of contiguous float values to plot
         // Tip: If your float aren't contiguous but part of a structure, you can pass a pointer to your first float
@@ -1926,15 +1954,17 @@ static void ShowDemoWindowWidgets()
         ImGui::PlotHistogram("Histogram", func, NULL, display_count, 0, NULL, -1.0f, 1.0f, ImVec2(0, 80));
         ImGui::Separator();
 
+        ImGui::TreePop();
+    }
+
+    IMGUI_DEMO_MARKER("Widgets/Progress Bars");
+    if (ImGui::TreeNode("Progress Bars"))
+    {
         // Animate a simple progress bar
-        IMGUI_DEMO_MARKER("Widgets/Plotting/ProgressBar");
         static float progress = 0.0f, progress_dir = 1.0f;
-        if (animate)
-        {
-            progress += progress_dir * 0.4f * ImGui::GetIO().DeltaTime;
-            if (progress >= +1.1f) { progress = +1.1f; progress_dir *= -1.0f; }
-            if (progress <= -0.1f) { progress = -0.1f; progress_dir *= -1.0f; }
-        }
+        progress += progress_dir * 0.4f * ImGui::GetIO().DeltaTime;
+        if (progress >= +1.1f) { progress = +1.1f; progress_dir *= -1.0f; }
+        if (progress <= -0.1f) { progress = -0.1f; progress_dir *= -1.0f; }
 
         // Typically we would use ImVec2(-1.0f,0.0f) or ImVec2(-FLT_MIN,0.0f) to use all available width,
         // or ImVec2(width,0.0f) for a specified width. ImVec2(0.0f,0.0f) uses ItemWidth.
@@ -1946,6 +1976,13 @@ static void ShowDemoWindowWidgets()
         char buf[32];
         sprintf(buf, "%d/%d", (int)(progress_saturated * 1753), 1753);
         ImGui::ProgressBar(progress, ImVec2(0.f, 0.f), buf);
+
+        // Pass an animated negative value, e.g. -1.0f * (float)ImGui::GetTime() is the recommended value.
+        // Adjust the factor if you want to adjust the animation speed.
+        ImGui::ProgressBar(-1.0f * (float)ImGui::GetTime(), ImVec2(0.0f, 0.0f), "Searching..");
+        ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
+        ImGui::Text("Indeterminate");
+
         ImGui::TreePop();
     }
 
@@ -2536,9 +2573,7 @@ static void ShowDemoWindowWidgets()
                     {
                         IM_UNUSED(payload);
                         ImGui::SetMouseCursor(ImGuiMouseCursor_NotAllowed);
-                        ImGui::BeginTooltip();
-                        ImGui::Text("Cannot drop here!");
-                        ImGui::EndTooltip();
+                        ImGui::SetTooltip("Cannot drop here!");
                     }
                     ImGui::EndDragDropTarget();
                 }
@@ -5209,7 +5244,8 @@ static void ShowDemoWindowTables()
         static ImGuiTableFlags flags = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoBordersInBody;
 
         static ImGuiTreeNodeFlags tree_node_flags = ImGuiTreeNodeFlags_SpanAllColumns;
-        ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth", &tree_node_flags, ImGuiTreeNodeFlags_SpanFullWidth);
+        ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth",  &tree_node_flags, ImGuiTreeNodeFlags_SpanFullWidth);
+        ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanTextWidth",  &tree_node_flags, ImGuiTreeNodeFlags_SpanTextWidth);
         ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAllColumns", &tree_node_flags, ImGuiTreeNodeFlags_SpanAllColumns);
 
         HelpMarker("See \"Columns flags\" section to configure how indentation is applied to individual columns.");
@@ -5383,23 +5419,37 @@ static void ShowDemoWindowTables()
         const int rows_count = 12;
 
         static ImGuiTableFlags table_flags = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersInnerH | ImGuiTableFlags_Hideable | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_HighlightHoveredColumn;
+        static ImGuiTableColumnFlags column_flags = ImGuiTableColumnFlags_AngledHeader | ImGuiTableColumnFlags_WidthFixed;
         static bool bools[columns_count * rows_count] = {}; // Dummy storage selection storage
         static int frozen_cols = 1;
         static int frozen_rows = 2;
         ImGui::CheckboxFlags("_ScrollX", &table_flags, ImGuiTableFlags_ScrollX);
         ImGui::CheckboxFlags("_ScrollY", &table_flags, ImGuiTableFlags_ScrollY);
+        ImGui::CheckboxFlags("_Resizable", &table_flags, ImGuiTableFlags_Resizable);
         ImGui::CheckboxFlags("_NoBordersInBody", &table_flags, ImGuiTableFlags_NoBordersInBody);
         ImGui::CheckboxFlags("_HighlightHoveredColumn", &table_flags, ImGuiTableFlags_HighlightHoveredColumn);
         ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
         ImGui::SliderInt("Frozen columns", &frozen_cols, 0, 2);
         ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
         ImGui::SliderInt("Frozen rows", &frozen_rows, 0, 2);
+        ImGui::CheckboxFlags("Disable header contributing to column width", &column_flags, ImGuiTableColumnFlags_NoHeaderWidth);
+
+        if (ImGui::TreeNode("Style settings"))
+        {
+            ImGui::SameLine();
+            HelpMarker("Giving access to some ImGuiStyle value in this demo for convenience.");
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
+            ImGui::SliderAngle("style.TableAngledHeadersAngle", &ImGui::GetStyle().TableAngledHeadersAngle, -50.0f, +50.0f);
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
+            ImGui::SliderFloat2("style.TableAngledHeadersTextAlign", (float*)&ImGui::GetStyle().TableAngledHeadersTextAlign, 0.0f, 1.0f, "%.2f");
+            ImGui::TreePop();
+        }
 
         if (ImGui::BeginTable("table_angled_headers", columns_count, table_flags, ImVec2(0.0f, TEXT_BASE_HEIGHT * 12)))
         {
             ImGui::TableSetupColumn(column_names[0], ImGuiTableColumnFlags_NoHide | ImGuiTableColumnFlags_NoReorder);
             for (int n = 1; n < columns_count; n++)
-                ImGui::TableSetupColumn(column_names[n], ImGuiTableColumnFlags_AngledHeader | ImGuiTableColumnFlags_WidthFixed);
+                ImGui::TableSetupColumn(column_names[n], column_flags);
             ImGui::TableSetupScrollFreeze(frozen_cols, frozen_rows);
 
             ImGui::TableAngledHeadersRow(); // Draw angled headers for all columns with the ImGuiTableColumnFlags_AngledHeader flag.
@@ -5546,6 +5596,7 @@ static void ShowDemoWindowTables()
         HelpMarker("Multiple tables with the same identifier will share their settings, width, visibility, order etc.");
 
         static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_NoSavedSettings;
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
         ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
         ImGui::CheckboxFlags("ImGuiTableFlags_SizingFixedFit", &flags, ImGuiTableFlags_SizingFixedFit);
         ImGui::CheckboxFlags("ImGuiTableFlags_HighlightHoveredColumn", &flags, ImGuiTableFlags_HighlightHoveredColumn);
@@ -6418,7 +6469,7 @@ void ImGui::ShowAboutWindow(bool* p_open)
     ImGui::Separator();
     ImGui::Text("By Omar Cornut and all Dear ImGui contributors.");
     ImGui::Text("Dear ImGui is licensed under the MIT License, see LICENSE for more information.");
-    ImGui::Text("If your company uses this, please consider sponsoring the project!");
+    ImGui::Text("If your company uses this, please consider funding the project.");
 
     static bool show_config_info = false;
     ImGui::Checkbox("Config/Build Information", &show_config_info);
@@ -6704,6 +6755,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
             ImGui::SeparatorText("Tables");
             ImGui::SliderFloat2("CellPadding", (float*)&style.CellPadding, 0.0f, 20.0f, "%.0f");
             ImGui::SliderAngle("TableAngledHeadersAngle", &style.TableAngledHeadersAngle, -50.0f, +50.0f);
+            ImGui::SliderFloat2("TableAngledHeadersTextAlign", (float*)&style.TableAngledHeadersTextAlign, 0.0f, 1.0f, "%.2f");
 
             ImGui::SeparatorText("Widgets");
             ImGui::SliderFloat2("WindowTitleAlign", (float*)&style.WindowTitleAlign, 0.0f, 1.0f, "%.2f");
@@ -7880,7 +7932,7 @@ static void ShowExampleAppConstrainedResize(bool* p_open)
     if (type == 2) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 0),    ImVec2(-1, FLT_MAX));      // Resize vertical + lock current width
     if (type == 3) ImGui::SetNextWindowSizeConstraints(ImVec2(0, -1),    ImVec2(FLT_MAX, -1));      // Resize horizontal + lock current height
     if (type == 4) ImGui::SetNextWindowSizeConstraints(ImVec2(400, -1),  ImVec2(500, -1));          // Width Between and 400 and 500
-    if (type == 5) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 500),  ImVec2(-1, FLT_MAX));      // Height at least 400
+    if (type == 5) ImGui::SetNextWindowSizeConstraints(ImVec2(-1, 400),  ImVec2(-1, FLT_MAX));      // Height at least 400
     if (type == 6) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0),     ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::AspectRatio, (void*)&aspect_ratio);   // Aspect ratio
     if (type == 7) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0),     ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Square);                              // Always Square
     if (type == 8) ImGui::SetNextWindowSizeConstraints(ImVec2(0, 0),     ImVec2(FLT_MAX, FLT_MAX), CustomConstraints::Step, (void*)&fixed_step);            // Fixed Step
@@ -8058,6 +8110,14 @@ static void ShowExampleAppWindowTitles(bool*)
 // [SECTION] Example App: Custom Rendering using ImDrawList API / ShowExampleAppCustomRendering()
 //-----------------------------------------------------------------------------
 
+// Add a |_| looking shape
+static void PathConcaveShape(ImDrawList* draw_list, float x, float y, float sz)
+{
+    const ImVec2 pos_norms[] = { { 0.0f, 0.0f }, { 0.3f, 0.0f }, { 0.3f, 0.7f }, { 0.7f, 0.7f }, { 0.7f, 0.0f }, { 1.0f, 0.0f }, { 1.0f, 1.0f }, { 0.0f, 1.0f } };
+    for (const ImVec2& p : pos_norms)
+        draw_list->PathLineTo(ImVec2(x + 0.5f + (int)(sz * p.x), y + 0.5f + (int)(sz * p.y)));
+}
+
 // Demonstrate using the low-level ImDrawList to draw custom shapes.
 static void ShowExampleAppCustomRendering(bool* p_open)
 {
@@ -8130,6 +8190,9 @@ static void ShowExampleAppCustomRendering(bool* p_open)
             const float rounding = sz / 5.0f;
             const int circle_segments = circle_segments_override ? circle_segments_override_v : 0;
             const int curve_segments = curve_segments_override ? curve_segments_override_v : 0;
+            const ImVec2 cp3[3] = { ImVec2(0.0f, sz * 0.6f), ImVec2(sz * 0.5f, -sz * 0.4f), ImVec2(sz, sz) }; // Control points for curves
+            const ImVec2 cp4[4] = { ImVec2(0.0f, 0.0f), ImVec2(sz * 1.3f, sz * 0.3f), ImVec2(sz - sz * 1.3f, sz - sz * 0.3f), ImVec2(sz, sz) };
+
             float x = p.x + 4.0f;
             float y = p.y + 4.0f;
             for (int n = 0; n < 2; n++)
@@ -8138,41 +8201,63 @@ static void ShowExampleAppCustomRendering(bool* p_open)
                 float th = (n == 0) ? 1.0f : thickness;
                 draw_list->AddNgon(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, ngon_sides, th);                 x += sz + spacing;  // N-gon
                 draw_list->AddCircle(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, col, circle_segments, th);          x += sz + spacing;  // Circle
-                draw_list->AddEllipse(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, sz*0.3f, col, -0.3f, circle_segments, th); x += sz + spacing;	// Ellipse
+                draw_list->AddEllipse(ImVec2(x + sz*0.5f, y + sz*0.5f), ImVec2(sz*0.5f, sz*0.3f), col, -0.3f, circle_segments, th); x += sz + spacing;	// Ellipse
                 draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 0.0f, ImDrawFlags_None, th);          x += sz + spacing;  // Square
                 draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, ImDrawFlags_None, th);      x += sz + spacing;  // Square with all rounded corners
                 draw_list->AddRect(ImVec2(x, y), ImVec2(x + sz, y + sz), col, rounding, corners_tl_br, th);         x += sz + spacing;  // Square with two rounded corners
                 draw_list->AddTriangle(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col, th);x += sz + spacing;  // Triangle
                 //draw_list->AddTriangle(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col, th);x+= sz*0.4f + spacing; // Thin triangle
+                PathConcaveShape(draw_list, x, y, sz); draw_list->PathStroke(col, ImDrawFlags_Closed, th);          x += sz + spacing;  // Concave Shape
+                //draw_list->AddPolyline(concave_shape, IM_ARRAYSIZE(concave_shape), col, ImDrawFlags_Closed, th);
                 draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y), col, th);                                       x += sz + spacing;  // Horizontal line (note: drawing a filled rectangle will be faster!)
                 draw_list->AddLine(ImVec2(x, y), ImVec2(x, y + sz), col, th);                                       x += spacing;       // Vertical line (note: drawing a filled rectangle will be faster!)
                 draw_list->AddLine(ImVec2(x, y), ImVec2(x + sz, y + sz), col, th);                                  x += sz + spacing;  // Diagonal line
 
+                // Path
+                draw_list->PathArcTo(ImVec2(x + sz*0.5f, y + sz*0.5f), sz*0.5f, 3.141592f, 3.141592f * -0.5f);
+                draw_list->PathStroke(col, ImDrawFlags_None, th);
+                x += sz + spacing;
+
                 // Quadratic Bezier Curve (3 control points)
-                ImVec2 cp3[3] = { ImVec2(x, y + sz * 0.6f), ImVec2(x + sz * 0.5f, y - sz * 0.4f), ImVec2(x + sz, y + sz) };
-                draw_list->AddBezierQuadratic(cp3[0], cp3[1], cp3[2], col, th, curve_segments); x += sz + spacing;
+                draw_list->AddBezierQuadratic(ImVec2(x + cp3[0].x, y + cp3[0].y), ImVec2(x + cp3[1].x, y + cp3[1].y), ImVec2(x + cp3[2].x, y + cp3[2].y), col, th, curve_segments);
+                x += sz + spacing;
 
                 // Cubic Bezier Curve (4 control points)
-                ImVec2 cp4[4] = { ImVec2(x, y), ImVec2(x + sz * 1.3f, y + sz * 0.3f), ImVec2(x + sz - sz * 1.3f, y + sz - sz * 0.3f), ImVec2(x + sz, y + sz) };
-                draw_list->AddBezierCubic(cp4[0], cp4[1], cp4[2], cp4[3], col, th, curve_segments);
+                draw_list->AddBezierCubic(ImVec2(x + cp4[0].x, y + cp4[0].y), ImVec2(x + cp4[1].x, y + cp4[1].y), ImVec2(x + cp4[2].x, y + cp4[2].y), ImVec2(x + cp4[3].x, y + cp4[3].y), col, th, curve_segments);
 
                 x = p.x + 4;
                 y += sz + spacing;
             }
+
+            // Filled shapes
             draw_list->AddNgonFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz * 0.5f, col, ngon_sides);             x += sz + spacing;  // N-gon
             draw_list->AddCircleFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz * 0.5f, col, circle_segments);      x += sz + spacing;  // Circle
-            draw_list->AddEllipseFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz * 0.5f, sz * 0.3f, col, -0.3f, circle_segments); x += sz + spacing;// Ellipse
+            draw_list->AddEllipseFilled(ImVec2(x + sz * 0.5f, y + sz * 0.5f), ImVec2(sz * 0.5f, sz * 0.3f), col, -0.3f, circle_segments); x += sz + spacing;// Ellipse
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col);                                    x += sz + spacing;  // Square
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f);                             x += sz + spacing;  // Square with all rounded corners
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + sz), col, 10.0f, corners_tl_br);              x += sz + spacing;  // Square with two rounded corners
             draw_list->AddTriangleFilled(ImVec2(x+sz*0.5f,y), ImVec2(x+sz, y+sz-0.5f), ImVec2(x, y+sz-0.5f), col);  x += sz + spacing;  // Triangle
             //draw_list->AddTriangleFilled(ImVec2(x+sz*0.2f,y), ImVec2(x, y+sz-0.5f), ImVec2(x+sz*0.4f, y+sz-0.5f), col); x += sz*0.4f + spacing; // Thin triangle
+            PathConcaveShape(draw_list, x, y, sz); draw_list->PathFillConcave(col);                                 x += sz + spacing;  // Concave shape
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + sz, y + thickness), col);                             x += sz + spacing;  // Horizontal line (faster than AddLine, but only handle integer thickness)
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + thickness, y + sz), col);                             x += spacing * 2.0f;// Vertical line (faster than AddLine, but only handle integer thickness)
             draw_list->AddRectFilled(ImVec2(x, y), ImVec2(x + 1, y + 1), col);                                      x += sz;            // Pixel (faster than AddLine)
-            draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x + sz, y + sz), IM_COL32(0, 0, 0, 255), IM_COL32(255, 0, 0, 255), IM_COL32(255, 255, 0, 255), IM_COL32(0, 255, 0, 255));
 
-            ImGui::Dummy(ImVec2((sz + spacing) * 11.2f, (sz + spacing) * 3.0f));
+            // Path
+            draw_list->PathArcTo(ImVec2(x + sz * 0.5f, y + sz * 0.5f), sz * 0.5f, 3.141592f * -0.5f, 3.141592f);
+            draw_list->PathFillConvex(col);
+            x += sz + spacing;
+
+            // Quadratic Bezier Curve (3 control points)
+            draw_list->PathLineTo(ImVec2(x + cp3[0].x, y + cp3[0].y));
+            draw_list->PathBezierQuadraticCurveTo(ImVec2(x + cp3[1].x, y + cp3[1].y), ImVec2(x + cp3[2].x, y + cp3[2].y), curve_segments);
+            draw_list->PathFillConvex(col);
+            x += sz + spacing;
+
+            draw_list->AddRectFilledMultiColor(ImVec2(x, y), ImVec2(x + sz, y + sz), IM_COL32(0, 0, 0, 255), IM_COL32(255, 0, 0, 255), IM_COL32(255, 255, 0, 255), IM_COL32(0, 255, 0, 255));
+            x += sz + spacing;
+
+            ImGui::Dummy(ImVec2((sz + spacing) * 13.2f, (sz + spacing) * 3.0f));
             ImGui::PopItemWidth();
             ImGui::EndTabItem();
         }

imgui_draw.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6
 // (drawing and font code)
 
 /*
@@ -8,6 +8,7 @@ Index of this file:
 // [SECTION] STB libraries implementation
 // [SECTION] Style functions
 // [SECTION] ImDrawList
+// [SECTION] ImTriangulator, ImDrawList concave polygon fill
 // [SECTION] ImDrawListSplitter
 // [SECTION] ImDrawData
 // [SECTION] Helpers ShadeVertsXXX functions
@@ -64,6 +65,7 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wdouble-promotion"               // warning: implicit conversion from 'float' to 'double' when passing argument to function  // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
 #pragma clang diagnostic ignored "-Wreserved-identifier"            // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wunused-function"          // warning: 'xxxx' defined but not used
@@ -389,6 +391,7 @@ void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
 }
 
 // Initialize before use in a new frame. We always have a command ready in the buffer.
+// In the majority of cases, you would want to call PushClipRect() and PushTextureID() after this.
 void ImDrawList::_ResetForNewFrame()
 {
     // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
@@ -1223,10 +1226,10 @@ void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, floa
     }
 }
 
-void ImDrawList::PathEllipticalArcTo(const ImVec2& center, float radius_x, float radius_y, float rot, float a_min, float a_max, int num_segments)
+void ImDrawList::PathEllipticalArcTo(const ImVec2& center, const ImVec2& radius, float rot, float a_min, float a_max, int num_segments)
 {
     if (num_segments <= 0)
-        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.
+        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
 
     _Path.reserve(_Path.Size + (num_segments + 1));
 
@@ -1235,11 +1238,10 @@ void ImDrawList::PathEllipticalArcTo(const ImVec2& center, float radius_x, float
     for (int i = 0; i <= num_segments; i++)
     {
         const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
-        ImVec2 point(ImCos(a) * radius_x, ImSin(a) * radius_y);
-        const float rel_x = (point.x * cos_rot) - (point.y * sin_rot);
-        const float rel_y = (point.x * sin_rot) + (point.y * cos_rot);
-        point.x = rel_x + center.x;
-        point.y = rel_y + center.y;
+        ImVec2 point(ImCos(a) * radius.x, ImSin(a) * radius.y);
+        const ImVec2 rel((point.x * cos_rot) - (point.y * sin_rot), (point.x * sin_rot) + (point.y * cos_rot));
+        point.x = rel.x + center.x;
+        point.y = rel.y + center.y;
         _Path.push_back(point);
     }
 }
@@ -1564,31 +1566,31 @@ void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, in
 }
 
 // Ellipse
-void ImDrawList::AddEllipse(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot, int num_segments, float thickness)
+void ImDrawList::AddEllipse(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments, float thickness)
 {
     if ((col & IM_COL32_A_MASK) == 0)
         return;
 
     if (num_segments <= 0)
-        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.
+        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
 
     // Because we are filling a closed shape we remove 1 from the count of segments/points
     const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
-    PathEllipticalArcTo(center, radius_x, radius_y, rot, 0.0f, a_max, num_segments - 1);
+    PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1);
     PathStroke(col, true, thickness);
 }
 
-void ImDrawList::AddEllipseFilled(const ImVec2& center, float radius_x, float radius_y, ImU32 col, float rot, int num_segments)
+void ImDrawList::AddEllipseFilled(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments)
 {
     if ((col & IM_COL32_A_MASK) == 0)
         return;
 
     if (num_segments <= 0)
-        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius_x, radius_y)); // A bit pessimistic, maybe there's a better computation to do here.
+        num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
 
     // Because we are filling a closed shape we remove 1 from the count of segments/points
     const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
-    PathEllipticalArcTo(center, radius_x, radius_y, rot, 0.0f, a_max, num_segments - 1);
+    PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1);
     PathFillConvex(col);
 }
 
@@ -1619,10 +1621,11 @@ void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos,
     if ((col & IM_COL32_A_MASK) == 0)
         return;
 
+    // Accept null ranges
+    if (text_begin == text_end || text_begin[0] == 0)
+        return;
     if (text_end == NULL)
         text_end = text_begin + strlen(text_begin);
-    if (text_begin == text_end)
-        return;
 
     // Pull default font/size from the shared ImDrawListSharedData instance
     if (font == NULL)
@@ -1706,6 +1709,316 @@ void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_mi
         PopTextureID();
 }
 
+//-----------------------------------------------------------------------------
+// [SECTION] ImTriangulator, ImDrawList concave polygon fill
+//-----------------------------------------------------------------------------
+// Triangulate concave polygons. Based on "Triangulation by Ear Clipping" paper, O(N^2) complexity.
+// Reference: https://www.geometrictools.com/Documentation/TriangulationByEarClipping.pdf
+// Provided as a convenience for user but not used by main library.
+//-----------------------------------------------------------------------------
+// - ImTriangulator [Internal]
+// - AddConcavePolyFilled()
+//-----------------------------------------------------------------------------
+
+enum ImTriangulatorNodeType
+{
+    ImTriangulatorNodeType_Convex,
+    ImTriangulatorNodeType_Ear,
+    ImTriangulatorNodeType_Reflex
+};
+
+struct ImTriangulatorNode
+{
+    ImTriangulatorNodeType  Type;
+    int                     Index;
+    ImVec2                  Pos;
+    ImTriangulatorNode*     Next;
+    ImTriangulatorNode*     Prev;
+
+    void    Unlink()        { Next->Prev = Prev; Prev->Next = Next; }
+};
+
+struct ImTriangulatorNodeSpan
+{
+    ImTriangulatorNode**    Data = NULL;
+    int                     Size = 0;
+
+    void    push_back(ImTriangulatorNode* node) { Data[Size++] = node; }
+    void    find_erase_unsorted(int idx)        { for (int i = Size - 1; i >= 0; i--) if (Data[i]->Index == idx) { Data[i] = Data[Size - 1]; Size--; return; } }
+};
+
+struct ImTriangulator
+{
+    static int EstimateTriangleCount(int points_count)      { return (points_count < 3) ? 0 : points_count - 2; }
+    static int EstimateScratchBufferSize(int points_count)  { return sizeof(ImTriangulatorNode) * points_count + sizeof(ImTriangulatorNode*) * points_count * 2; }
+
+    void    Init(const ImVec2* points, int points_count, void* scratch_buffer);
+    void    GetNextTriangle(unsigned int out_triangle[3]);     // Return relative indexes for next triangle
+
+    // Internal functions
+    void    BuildNodes(const ImVec2* points, int points_count);
+    void    BuildReflexes();
+    void    BuildEars();
+    void    FlipNodeList();
+    bool    IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const;
+    void    ReclassifyNode(ImTriangulatorNode* node);
+
+    // Internal members
+    int                     _TrianglesLeft = 0;
+    ImTriangulatorNode*     _Nodes = NULL;
+    ImTriangulatorNodeSpan  _Ears;
+    ImTriangulatorNodeSpan  _Reflexes;
+};
+
+// Distribute storage for nodes, ears and reflexes.
+// FIXME-OPT: if everything is convex, we could report it to caller and let it switch to an convex renderer
+// (this would require first building reflexes to bail to convex if empty, without even building nodes)
+void ImTriangulator::Init(const ImVec2* points, int points_count, void* scratch_buffer)
+{
+    IM_ASSERT(scratch_buffer != NULL && points_count >= 3);
+    _TrianglesLeft = EstimateTriangleCount(points_count);
+    _Nodes         = (ImTriangulatorNode*)scratch_buffer;                          // points_count x Node
+    _Ears.Data     = (ImTriangulatorNode**)(_Nodes + points_count);                // points_count x Node*
+    _Reflexes.Data = (ImTriangulatorNode**)(_Nodes + points_count) + points_count; // points_count x Node*
+    BuildNodes(points, points_count);
+    BuildReflexes();
+    BuildEars();
+}
+
+void ImTriangulator::BuildNodes(const ImVec2* points, int points_count)
+{
+    for (int i = 0; i < points_count; i++)
+    {
+        _Nodes[i].Type = ImTriangulatorNodeType_Convex;
+        _Nodes[i].Index = i;
+        _Nodes[i].Pos = points[i];
+        _Nodes[i].Next = _Nodes + i + 1;
+        _Nodes[i].Prev = _Nodes + i - 1;
+    }
+    _Nodes[0].Prev = _Nodes + points_count - 1;
+    _Nodes[points_count - 1].Next = _Nodes;
+}
+
+void ImTriangulator::BuildReflexes()
+{
+    ImTriangulatorNode* n1 = _Nodes;
+    for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
+    {
+        if (ImTriangleIsClockwise(n1->Prev->Pos, n1->Pos, n1->Next->Pos))
+            continue;
+        n1->Type = ImTriangulatorNodeType_Reflex;
+        _Reflexes.push_back(n1);
+    }
+}
+
+void ImTriangulator::BuildEars()
+{
+    ImTriangulatorNode* n1 = _Nodes;
+    for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
+    {
+        if (n1->Type != ImTriangulatorNodeType_Convex)
+            continue;
+        if (!IsEar(n1->Prev->Index, n1->Index, n1->Next->Index, n1->Prev->Pos, n1->Pos, n1->Next->Pos))
+            continue;
+        n1->Type = ImTriangulatorNodeType_Ear;
+        _Ears.push_back(n1);
+    }
+}
+
+void ImTriangulator::GetNextTriangle(unsigned int out_triangle[3])
+{
+    if (_Ears.Size == 0)
+    {
+        FlipNodeList();
+
+        ImTriangulatorNode* node = _Nodes;
+        for (int i = _TrianglesLeft; i >= 0; i--, node = node->Next)
+            node->Type = ImTriangulatorNodeType_Convex;
+        _Reflexes.Size = 0;
+        BuildReflexes();
+        BuildEars();
+
+        // If we still don't have ears, it means geometry is degenerated.
+        if (_Ears.Size == 0)
+        {
+            // Return first triangle available, mimicking the behavior of convex fill.
+            IM_ASSERT(_TrianglesLeft > 0); // Geometry is degenerated
+            _Ears.Data[0] = _Nodes;
+            _Ears.Size    = 1;
+        }
+    }
+
+    ImTriangulatorNode* ear = _Ears.Data[--_Ears.Size];
+    out_triangle[0] = ear->Prev->Index;
+    out_triangle[1] = ear->Index;
+    out_triangle[2] = ear->Next->Index;
+
+    ear->Unlink();
+    if (ear == _Nodes)
+        _Nodes = ear->Next;
+
+    ReclassifyNode(ear->Prev);
+    ReclassifyNode(ear->Next);
+    _TrianglesLeft--;
+}
+
+void ImTriangulator::FlipNodeList()
+{
+    ImTriangulatorNode* prev = _Nodes;
+    ImTriangulatorNode* temp = _Nodes;
+    ImTriangulatorNode* current = _Nodes->Next;
+    prev->Next = prev;
+    prev->Prev = prev;
+    while (current != _Nodes)
+    {
+        temp = current->Next;
+
+        current->Next = prev;
+        prev->Prev = current;
+        _Nodes->Next = current;
+        current->Prev = _Nodes;
+
+        prev = current;
+        current = temp;
+    }
+    _Nodes = prev;
+}
+
+// A triangle is an ear is no other vertex is inside it. We can test reflexes vertices only (see reference algorithm)
+bool ImTriangulator::IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const
+{
+    ImTriangulatorNode** p_end = _Reflexes.Data + _Reflexes.Size;
+    for (ImTriangulatorNode** p = _Reflexes.Data; p < p_end; p++)
+    {
+        ImTriangulatorNode* reflex = *p;
+        if (reflex->Index != i0 && reflex->Index != i1 && reflex->Index != i2)
+            if (ImTriangleContainsPoint(v0, v1, v2, reflex->Pos))
+                return false;
+    }
+    return true;
+}
+
+void ImTriangulator::ReclassifyNode(ImTriangulatorNode* n1)
+{
+    // Classify node
+    ImTriangulatorNodeType type;
+    const ImTriangulatorNode* n0 = n1->Prev;
+    const ImTriangulatorNode* n2 = n1->Next;
+    if (!ImTriangleIsClockwise(n0->Pos, n1->Pos, n2->Pos))
+        type = ImTriangulatorNodeType_Reflex;
+    else if (IsEar(n0->Index, n1->Index, n2->Index, n0->Pos, n1->Pos, n2->Pos))
+        type = ImTriangulatorNodeType_Ear;
+    else
+        type = ImTriangulatorNodeType_Convex;
+
+    // Update lists when a type changes
+    if (type == n1->Type)
+        return;
+    if (n1->Type == ImTriangulatorNodeType_Reflex)
+        _Reflexes.find_erase_unsorted(n1->Index);
+    else if (n1->Type == ImTriangulatorNodeType_Ear)
+        _Ears.find_erase_unsorted(n1->Index);
+    if (type == ImTriangulatorNodeType_Reflex)
+        _Reflexes.push_back(n1);
+    else if (type == ImTriangulatorNodeType_Ear)
+        _Ears.push_back(n1);
+    n1->Type = type;
+}
+
+// Use ear-clipping algorithm to triangulate a simple polygon (no self-interaction, no holes).
+// (Reminder: we don't perform any coarse clipping/culling in ImDrawList layer!
+// It is up to caller to ensure not making costly calls that will be outside of visible area.
+// As concave fill is noticeably more expensive than other primitives, be mindful of this...
+// Caller can build AABB of points, and avoid filling if 'draw_list->_CmdHeader.ClipRect.Overlays(points_bb) == false')
+void ImDrawList::AddConcavePolyFilled(const ImVec2* points, const int points_count, ImU32 col)
+{
+    if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
+        return;
+
+    const ImVec2 uv = _Data->TexUvWhitePixel;
+    ImTriangulator triangulator;
+    unsigned int triangle[3];
+    if (Flags & ImDrawListFlags_AntiAliasedFill)
+    {
+        // Anti-aliased Fill
+        const float AA_SIZE = _FringeScale;
+        const ImU32 col_trans = col & ~IM_COL32_A_MASK;
+        const int idx_count = (points_count - 2) * 3 + points_count * 6;
+        const int vtx_count = (points_count * 2);
+        PrimReserve(idx_count, vtx_count);
+
+        // Add indexes for fill
+        unsigned int vtx_inner_idx = _VtxCurrentIdx;
+        unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
+
+        _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
+        triangulator.Init(points, points_count, _Data->TempBuffer.Data);
+        while (triangulator._TrianglesLeft > 0)
+        {
+            triangulator.GetNextTriangle(triangle);
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (triangle[0] << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (triangle[1] << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (triangle[2] << 1));
+            _IdxWritePtr += 3;
+        }
+
+        // Compute normals
+        _Data->TempBuffer.reserve_discard(points_count);
+        ImVec2* temp_normals = _Data->TempBuffer.Data;
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
+            const ImVec2& p0 = points[i0];
+            const ImVec2& p1 = points[i1];
+            float dx = p1.x - p0.x;
+            float dy = p1.y - p0.y;
+            IM_NORMALIZE2F_OVER_ZERO(dx, dy);
+            temp_normals[i0].x = dy;
+            temp_normals[i0].y = -dx;
+        }
+
+        for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
+        {
+            // Average normals
+            const ImVec2& n0 = temp_normals[i0];
+            const ImVec2& n1 = temp_normals[i1];
+            float dm_x = (n0.x + n1.x) * 0.5f;
+            float dm_y = (n0.y + n1.y) * 0.5f;
+            IM_FIXNORMAL2F(dm_x, dm_y);
+            dm_x *= AA_SIZE * 0.5f;
+            dm_y *= AA_SIZE * 0.5f;
+
+            // Add vertices
+            _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;        // Inner
+            _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans;  // Outer
+            _VtxWritePtr += 2;
+
+            // Add indexes for fringes
+            _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
+            _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
+            _IdxWritePtr += 6;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+    else
+    {
+        // Non Anti-aliased Fill
+        const int idx_count = (points_count - 2) * 3;
+        const int vtx_count = points_count;
+        PrimReserve(idx_count, vtx_count);
+        for (int i = 0; i < vtx_count; i++)
+        {
+            _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
+            _VtxWritePtr++;
+        }
+        _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
+        triangulator.Init(points, points_count, _Data->TempBuffer.Data);
+        while (triangulator._TrianglesLeft > 0)
+        {
+            triangulator.GetNextTriangle(triangle);
+            _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx + triangle[0]); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + triangle[1]); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + triangle[2]);
+            _IdxWritePtr += 3;
+        }
+        _VtxCurrentIdx += (ImDrawIdx)vtx_count;
+    }
+}
 
 //-----------------------------------------------------------------------------
 // [SECTION] ImDrawListSplitter
@@ -2678,8 +2991,8 @@ static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
         int unscaled_ascent, unscaled_descent, unscaled_line_gap;
         stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
 
-        const float ascent = ImTrunc(unscaled_ascent * font_scale + ((unscaled_ascent > 0.0f) ? +1 : -1));
-        const float descent = ImTrunc(unscaled_descent * font_scale + ((unscaled_descent > 0.0f) ? +1 : -1));
+        const float ascent = ImCeil(unscaled_ascent * font_scale);
+        const float descent = ImFloor(unscaled_descent * font_scale);
         ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
         const float font_off_x = cfg.GlyphOffset.x;
         const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
@@ -3774,6 +4087,8 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, Im
             {
                 x = start_x;
                 y += line_height;
+                if (y > clip_rect.w)
+                    break; // break out of main loop
                 word_wrap_eol = NULL;
                 s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks
                 continue;
@@ -4012,8 +4327,8 @@ void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, Im
     }
     else
     {
-        draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b, 3); // BL
-        draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e, 3); // TR
+        draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b); // BL
+        draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e); // TR
     }
     if (p1.x > rect.Min.x + rounding)
     {
@@ -4032,8 +4347,8 @@ void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, Im
         }
         else
         {
-            draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b, 3); // TR
-            draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e, 3); // BR
+            draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b); // TR
+            draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e); // BR
         }
     }
     draw_list->PathFillConvex(col);

imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6
 // (internal structures/api)
 
 // You may use this file to debug, understand or extend Dear ImGui features but we don't provide any guarantee of forward compatibility.
@@ -87,10 +87,13 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wdouble-promotion"
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
 #pragma clang diagnostic ignored "-Wmissing-noreturn"               // warning: function 'xxx' could be declared with attribute 'noreturn'
+#pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wpragmas"              // warning: unknown option after '#pragma GCC diagnostic' kind
-#pragma GCC diagnostic ignored "-Wclass-memaccess"      // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wclass-memaccess"                  // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
+#pragma GCC diagnostic ignored "-Wdeprecated-enum-enum-conversion"  // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
 #endif
 
 // In 1.89.4, we moved the implementation of "courtesy maths operators" from imgui_internal.h in imgui.h
@@ -124,7 +127,7 @@ struct ImDrawListSharedData;        // Data shared between all ImDrawList instan
 struct ImGuiColorMod;               // Stacked color modifier, backup of modified data so we can restore it
 struct ImGuiContext;                // Main Dear ImGui context
 struct ImGuiContextHook;            // Hook for extensions like ImGuiTestEngine
-struct ImGuiDataVarInfo;            // Variable information (e.g. to avoid style variables from an enum)
+struct ImGuiDataVarInfo;            // Variable information (e.g. to access style variables from an enum)
 struct ImGuiDataTypeInfo;           // Type information associated to a ImGuiDataType enum
 struct ImGuiDockContext;            // Docking system context
 struct ImGuiDockRequest;            // Docking system dock/undock queued request
@@ -150,6 +153,7 @@ struct ImGuiStyleMod;               // Stacked style modifier, backup of modifie
 struct ImGuiTabBar;                 // Storage for a tab bar
 struct ImGuiTabItem;                // Storage for a tab item (within a tab bar)
 struct ImGuiTable;                  // Storage for a table
+struct ImGuiTableHeaderData;        // Storage for TableAngledHeadersRow()
 struct ImGuiTableColumn;            // Storage for one column of a table
 struct ImGuiTableInstanceData;      // Storage for one instance of a same table
 struct ImGuiTableTempData;          // Temporary storage for one table (one per table in the stack), shared between tables.
@@ -158,6 +162,7 @@ struct ImGuiTableColumnsSettings;   // Storage for a column .ini settings
 struct ImGuiTypingSelectState;      // Storage for GetTypingSelectRequest()
 struct ImGuiTypingSelectRequest;    // Storage for GetTypingSelectRequest() (aimed to be public)
 struct ImGuiWindow;                 // Storage for one window
+struct ImGuiWindowDockStyle;        // Storage for window-style data which needs to be stored for docking purpose
 struct ImGuiWindowTempData;         // Temporary storage for one window (that's the data which in theory we could ditch at the end of the frame, in practice we currently keep it for each window)
 struct ImGuiWindowSettings;         // Storage for a window .ini settings (we keep one of those even if the actual window wasn't instanced during this session)
 
@@ -184,6 +189,7 @@ typedef int ImGuiSeparatorFlags;        // -> enum ImGuiSeparatorFlags_     // F
 typedef int ImGuiTextFlags;             // -> enum ImGuiTextFlags_          // Flags: for TextEx()
 typedef int ImGuiTooltipFlags;          // -> enum ImGuiTooltipFlags_       // Flags: for BeginTooltipEx()
 typedef int ImGuiTypingSelectFlags;     // -> enum ImGuiTypingSelectFlags_  // Flags: for GetTypingSelectRequest()
+typedef int ImGuiWindowRefreshFlags;    // -> enum ImGuiWindowRefreshFlags_ // Flags: for SetNextWindowRefreshPolicy()
 
 typedef void (*ImGuiErrorLogCallback)(void* user_data, const char* fmt, ...);
 
@@ -414,6 +420,7 @@ IMGUI_API int           ImTextCountCharsFromUtf8(const char* in_text, const char
 IMGUI_API int           ImTextCountUtf8BytesFromChar(const char* in_text, const char* in_text_end);                             // return number of bytes to express one char in UTF-8
 IMGUI_API int           ImTextCountUtf8BytesFromStr(const ImWchar* in_text, const ImWchar* in_text_end);                        // return number of bytes to express string in UTF-8
 IMGUI_API const char*   ImTextFindPreviousUtf8Codepoint(const char* in_text_start, const char* in_text_curr);                   // return previous UTF-8 code-point.
+IMGUI_API int           ImTextCountLines(const char* in_text, const char* in_text_end);                                         // return number of lines taken by text. trailing carriage return doesn't count as an extra line.
 
 // Helpers: File System
 #ifdef IMGUI_DISABLE_FILE_FUNCTIONS
@@ -508,7 +515,8 @@ IMGUI_API ImVec2     ImLineClosestPoint(const ImVec2& a, const ImVec2& b, const
 IMGUI_API bool       ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
 IMGUI_API ImVec2     ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p);
 IMGUI_API void       ImTriangleBarycentricCoords(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p, float& out_u, float& out_v, float& out_w);
-inline float         ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c) { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
+inline float         ImTriangleArea(const ImVec2& a, const ImVec2& b, const ImVec2& c)          { return ImFabs((a.x * (b.y - c.y)) + (b.x * (c.y - a.y)) + (c.x * (a.y - b.y))) * 0.5f; }
+inline bool          ImTriangleIsClockwise(const ImVec2& a, const ImVec2& b, const ImVec2& c)   { return ((b.x - a.x) * (c.y - b.y)) - ((c.x - b.x) * (b.y - a.y)) > 0.0f; }
 
 // Helper: ImVec1 (1D vector)
 // (this odd construct is used to facilitate the transition between 1D and 2D, and the maintenance of some branches/patches)
@@ -873,6 +881,7 @@ enum ImGuiInputTextFlagsPrivate_
     ImGuiInputTextFlags_Multiline           = 1 << 26,  // For internal use by InputTextMultiline()
     ImGuiInputTextFlags_NoMarkEdited        = 1 << 27,  // For internal use by functions using InputText() before reformatting data
     ImGuiInputTextFlags_MergedItem          = 1 << 28,  // For internal use by TempInputText(), will skip calling ItemAdd(). Require bounding-box to strictly match.
+    ImGuiInputTextFlags_LocalizeDecimalPoint= 1 << 29,  // For internal use by InputScalar() and TempInputScalar()
 };
 
 // Extend ImGuiButtonFlags_
@@ -1121,6 +1130,15 @@ struct IMGUI_API ImGuiInputTextState
 
 };
 
+enum ImGuiWindowRefreshFlags_
+{
+    ImGuiWindowRefreshFlags_None                = 0,
+    ImGuiWindowRefreshFlags_TryToAvoidRefresh   = 1 << 0,   // [EXPERIMENTAL] Try to keep existing contents, USER MUST NOT HONOR BEGIN() RETURNING FALSE AND NOT APPEND.
+    ImGuiWindowRefreshFlags_RefreshOnHover      = 1 << 1,   // [EXPERIMENTAL] Always refresh on hover
+    ImGuiWindowRefreshFlags_RefreshOnFocus      = 1 << 2,   // [EXPERIMENTAL] Always refresh on focus
+    // Refresh policy/frequency, Load Balancing etc.
+};
+
 enum ImGuiNextWindowDataFlags_
 {
     ImGuiNextWindowDataFlags_None               = 0,
@@ -1133,9 +1151,10 @@ enum ImGuiNextWindowDataFlags_
     ImGuiNextWindowDataFlags_HasBgAlpha         = 1 << 6,
     ImGuiNextWindowDataFlags_HasScroll          = 1 << 7,
     ImGuiNextWindowDataFlags_HasChildFlags      = 1 << 8,
-    ImGuiNextWindowDataFlags_HasViewport        = 1 << 9,
-    ImGuiNextWindowDataFlags_HasDock            = 1 << 10,
-    ImGuiNextWindowDataFlags_HasWindowClass     = 1 << 11,
+    ImGuiNextWindowDataFlags_HasRefreshPolicy   = 1 << 9,
+    ImGuiNextWindowDataFlags_HasViewport        = 1 << 10,
+    ImGuiNextWindowDataFlags_HasDock            = 1 << 11,
+    ImGuiNextWindowDataFlags_HasWindowClass     = 1 << 12,
 };
 
 // Storage for SetNexWindow** functions
@@ -1162,6 +1181,7 @@ struct ImGuiNextWindowData
     ImGuiID                     DockId;
     ImGuiWindowClass            WindowClass;
     ImVec2                      MenuBarOffsetMinVal;    // (Always on) This is not exposed publicly, so we don't clear it and it doesn't have a corresponding flag (could we? for consistency?)
+    ImGuiWindowRefreshFlags     RefreshFlagsVal;
 
     ImGuiNextWindowData()       { memset(this, 0, sizeof(*this)); }
     inline void ClearFlags()    { Flags = ImGuiNextWindowDataFlags_None; }
@@ -1310,7 +1330,7 @@ struct ImGuiPopupData
 {
     ImGuiID             PopupId;        // Set on OpenPopup()
     ImGuiWindow*        Window;         // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
-    ImGuiWindow*        BackupNavWindow;// Set on OpenPopup(), a NavWindow that will be restored on popup close
+    ImGuiWindow*        RestoreNavWindow;// Set on OpenPopup(), a NavWindow that will be restored on popup close
     int                 ParentNavLayer; // Resolved on BeginPopup(). Actually a ImGuiNavLayer type (declared down below), initialized to -1 which is not part of an enum, but serves well-enough as "not any of layers" value
     int                 OpenFrameCount; // Set on OpenPopup()
     ImGuiID             OpenParentId;   // Set on OpenPopup(), we need this to differentiate multiple menu sets from each others (e.g. inside menu bar vs loose menu items)
@@ -1368,7 +1388,6 @@ enum ImGuiInputSource
     ImGuiInputSource_Mouse,         // Note: may be Mouse or TouchScreen or Pen. See io.MouseSource to distinguish them.
     ImGuiInputSource_Keyboard,
     ImGuiInputSource_Gamepad,
-    ImGuiInputSource_Clipboard,     // Currently only used by InputText()
     ImGuiInputSource_COUNT
 };
 
@@ -1599,6 +1618,7 @@ enum ImGuiNavMoveFlags_
     ImGuiNavMoveFlags_Activate              = 1 << 12,  // Activate/select target item.
     ImGuiNavMoveFlags_NoSelect              = 1 << 13,  // Don't trigger selection by not setting g.NavJustMovedTo
     ImGuiNavMoveFlags_NoSetNavHighlight     = 1 << 14,  // Do not alter the visible state of keyboard vs mouse nav highlight
+    ImGuiNavMoveFlags_NoClearActiveId       = 1 << 15,  // (Experimental) Do not clear active id when applying move result
 };
 
 enum ImGuiNavLayer
@@ -1615,10 +1635,10 @@ struct ImGuiNavItemData
     ImGuiID             FocusScopeId;   // Init,Move    // Best candidate focus scope ID
     ImRect              RectRel;        // Init,Move    // Best candidate bounding box in window relative space
     ImGuiItemFlags      InFlags;        // ????,Move    // Best candidate item flags
-    ImGuiSelectionUserData SelectionUserData;//I+Mov    // Best candidate SetNextItemSelectionData() value.
     float               DistBox;        //      Move    // Best candidate box distance to current NavId
     float               DistCenter;     //      Move    // Best candidate center distance to current NavId
     float               DistAxial;      //      Move    // Best candidate axial distance to current NavId
+    ImGuiSelectionUserData SelectionUserData;//I+Mov    // Best candidate SetNextItemSelectionData() value.
 
     ImGuiNavItemData()  { Clear(); }
     void Clear()        { Window = NULL; ID = FocusScopeId = 0; InFlags = 0; SelectionUserData = -1; DistBox = DistCenter = DistAxial = FLT_MAX; }
@@ -1867,6 +1887,7 @@ enum ImGuiWindowDockStyleCol
     ImGuiWindowDockStyleCol_COUNT
 };
 
+// We don't store style.Alpha: dock_node->LastBgColor embeds it and otherwise it would only affect the docking tab, which intuitively I would say we don't want to.
 struct ImGuiWindowDockStyle
 {
     ImU32 Colors[ImGuiWindowDockStyleCol_COUNT];
@@ -2701,6 +2722,7 @@ struct IMGUI_API ImGuiWindowTempData
     int                     CurrentTableIdx;        // Current table index (into g.Tables)
     ImGuiLayoutType         LayoutType;
     ImGuiLayoutType         ParentLayoutType;       // Layout type of parent window at the time of Begin()
+    ImU32                   ModalDimBgColor;
 
     // Local parameters stacks
     // We store the current settings outside of the vectors to increase memory locality (reduce cache misses). The vectors are rarely modified. Also it allows us to not heap allocate for short-lived windows which are not using those settings.
@@ -2753,6 +2775,7 @@ struct IMGUI_API ImGuiWindow
     bool                    Collapsed;                          // Set when collapsing window to become only title-bar
     bool                    WantCollapseToggle;
     bool                    SkipItems;                          // Set when items can safely be all clipped (e.g. window not visible or collapsed)
+    bool                    SkipRefresh;                        // [EXPERIMENTAL] Reuse previous frame drawn contents, Begin() returns false.
     bool                    Appearing;                          // Set during the frame where the window is appearing (or re-appearing)
     bool                    Hidden;                             // Do not display (== HiddenFrames*** > 0)
     bool                    IsFallbackWindow;                   // Set on the "Debug##Default" window.
@@ -3011,13 +3034,24 @@ struct ImGuiTableColumn
 };
 
 // Transient cell data stored per row.
-// sizeof() ~ 6
+// sizeof() ~ 6 bytes
 struct ImGuiTableCellData
 {
     ImU32                       BgColor;    // Actual color
     ImGuiTableColumnIdx         Column;     // Column number
 };
 
+// Parameters for TableAngledHeadersRowEx()
+// This may end up being refactored for more general purpose.
+// sizeof() ~ 12 bytes
+struct ImGuiTableHeaderData
+{
+    ImGuiTableColumnIdx         Index;      // Column index
+    ImU32                       TextColor;
+    ImU32                       BgColor0;
+    ImU32                       BgColor1;
+};
+
 // Per-instance data that needs preserving across frames (seemingly most others do not need to be preserved aside from debug needs. Does that means they could be moved to ImGuiTableTempData?)
 // sizeof() ~ 24 bytes
 struct ImGuiTableInstanceData
@@ -3103,7 +3137,7 @@ struct IMGUI_API ImGuiTable
     ImGuiTableSortSpecs         SortSpecs;                  // Public facing sorts specs, this is what we return in TableGetSortSpecs()
     ImGuiTableColumnIdx         SortSpecsCount;
     ImGuiTableColumnIdx         ColumnsEnabledCount;        // Number of enabled columns (<= ColumnsCount)
-    ImGuiTableColumnIdx         ColumnsEnabledFixedCount;   // Number of enabled columns (<= ColumnsCount)
+    ImGuiTableColumnIdx         ColumnsEnabledFixedCount;   // Number of enabled columns using fixed width (<= ColumnsCount)
     ImGuiTableColumnIdx         DeclColumnsCount;           // Count calls to TableSetupColumn()
     ImGuiTableColumnIdx         AngledHeadersCount;         // Count columns with angled headers
     ImGuiTableColumnIdx         HoveredColumnBody;          // Index of column whose visible region is being hovered. Important: == ColumnsCount when hovering empty region after the right-most column!
@@ -3156,12 +3190,13 @@ struct IMGUI_API ImGuiTable
 // Transient data that are only needed between BeginTable() and EndTable(), those buffers are shared (1 per level of stacked table).
 // - Accessing those requires chasing an extra pointer so for very frequently used data we leave them in the main table structure.
 // - We also leave out of this structure data that tend to be particularly useful for debugging/metrics.
-// sizeof() ~ 120 bytes.
+// sizeof() ~ 136 bytes.
 struct IMGUI_API ImGuiTableTempData
 {
     int                         TableIndex;                 // Index in g.Tables.Buf[] pool
     float                       LastTimeActive;             // Last timestamp this structure was used
-    float                       AngledheadersExtraWidth;    // Used in EndTable()
+    float                       AngledHeadersExtraWidth;    // Used in EndTable()
+    ImVector<ImGuiTableHeaderData> AngledHeadersRequests;   // Used in TableAngledHeadersRow()
 
     ImVec2                      UserOuterSize;              // outer_size.x passed to BeginTable()
     ImDrawListSplitter          DrawSplitter;
@@ -3233,6 +3268,7 @@ namespace ImGui
     IMGUI_API ImGuiWindow*  FindWindowByID(ImGuiID id);
     IMGUI_API ImGuiWindow*  FindWindowByName(const char* name);
     IMGUI_API void          UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window);
+    IMGUI_API void          UpdateWindowSkipRefresh(ImGuiWindow* window);
     IMGUI_API ImVec2        CalcWindowNextAutoFitSize(ImGuiWindow* window);
     IMGUI_API bool          IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent, bool popup_hierarchy, bool dock_hierarchy);
     IMGUI_API bool          IsWindowWithinBeginStackOf(ImGuiWindow* window, ImGuiWindow* potential_parent);
@@ -3258,6 +3294,9 @@ namespace ImGui
     IMGUI_API int           FindWindowDisplayIndex(ImGuiWindow* window);
     IMGUI_API ImGuiWindow*  FindBottomMostVisibleWindowWithinBeginStack(ImGuiWindow* window);
 
+    // Windows: Idle, Refresh Policies [EXPERIMENTAL]
+    IMGUI_API void          SetNextWindowRefreshPolicy(ImGuiWindowRefreshFlags flags);
+
     // Fonts, drawing
     IMGUI_API void          SetCurrentFont(ImFont* font);
     inline ImFont*          GetDefaultFont() { ImGuiContext& g = *GImGui; return g.IO.FontDefault ? g.IO.FontDefault : g.IO.Fonts->Fonts[0]; }
@@ -3605,7 +3644,7 @@ namespace ImGui
     IMGUI_API float         TableGetHeaderAngledMaxLabelWidth();
     IMGUI_API void          TablePushBackgroundChannel();
     IMGUI_API void          TablePopBackgroundChannel();
-    IMGUI_API void          TableAngledHeadersRowEx(float angle, float label_width = 0.0f);
+    IMGUI_API void          TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label_width, const ImGuiTableHeaderData* data, int data_count);
 
     // Tables: Internals
     inline    ImGuiTable*   GetCurrentTable() { ImGuiContext& g = *GImGui; return g.CurrentTable; }
@@ -3792,7 +3831,6 @@ namespace ImGui
     IMGUI_API void          DebugBreakClearData();
     IMGUI_API bool          DebugBreakButton(const char* label, const char* description_of_location);
     IMGUI_API void          DebugBreakButtonTooltip(bool keyboard_only, const char* description_of_location);
-    inline void             DebugStartItemPicker()                                  { ImGuiContext& g = *GImGui; g.DebugItemPickerActive = true; }
     IMGUI_API void          ShowFontAtlas(ImFontAtlas* atlas);
     IMGUI_API void          DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end);
     IMGUI_API void          DebugNodeColumns(ImGuiOldColumns* columns);

imgui_tables.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6
 // (tables and columns code)
 
 /*
@@ -24,8 +24,9 @@ Index of this file:
 */
 
 // Navigating this file:
-// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
-// - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
+// - In Visual Studio: CTRL+comma ("Edit.GoToAll") can follow symbols inside comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - In Visual Studio w/ Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.
+// - In VS Code, CLion, etc.: CTRL+click can follow symbols inside comments.
 
 //-----------------------------------------------------------------------------
 // [SECTION] Commentary
@@ -227,6 +228,7 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wenum-enum-conversion"           // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
 #pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wformat-nonliteral"                // warning: format not a string literal, format string not checked
@@ -498,7 +500,8 @@ bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
     table->DeclColumnsCount = table->AngledHeadersCount = 0;
     if (previous_frame_active + 1 < g.FrameCount)
         table->IsActiveIdInTable = false;
-    temp_data->AngledheadersExtraWidth = 0.0f;
+    table->AngledHeadersHeight = 0.0f;
+    temp_data->AngledHeadersExtraWidth = 0.0f;
 
     // Using opaque colors facilitate overlapping lines of the grid, otherwise we'd need to improve TableDrawBorders()
     table->BorderColorStrong = GetColorU32(ImGuiCol_TableBorderStrong);
@@ -1066,6 +1069,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         // - ClipRect.Max.x: using WorkMaxX instead of MaxX (aka including padding) makes things more consistent when resizing down, tho slightly detrimental to visibility in very-small column.
         // - ClipRect.Max.x: using MaxX makes it easier for header to receive hover highlight with no discontinuity and display sorting arrow.
         // - FIXME-TABLE: We want equal width columns to have equal (ClipRect.Max.x - WorkMinX) width, which means ClipRect.max.x cannot stray off host_clip_rect.Max.x else right-most column may appear shorter.
+        const float previous_instance_work_min_x = column->WorkMinX;
         column->WorkMinX = column->MinX + table->CellPaddingX + table->CellSpacingX1;
         column->WorkMaxX = column->MaxX - table->CellPaddingX - table->CellSpacingX2; // Expected max
         column->ItemWidth = ImTrunc(column->WidthGiven * 0.65f);
@@ -1118,8 +1122,22 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         //    column->WorkMinX = ImLerp(column->WorkMinX, ImMax(column->StartX, column->MaxX - column->ContentWidthRowsUnfrozen), 0.5f);
 
         // Reset content width variables
-        column->ContentMaxXFrozen = column->ContentMaxXUnfrozen = column->WorkMinX;
-        column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX;
+        if (table->InstanceCurrent == 0)
+        {
+            column->ContentMaxXFrozen = column->WorkMinX;
+            column->ContentMaxXUnfrozen = column->WorkMinX;
+            column->ContentMaxXHeadersUsed = column->WorkMinX;
+            column->ContentMaxXHeadersIdeal = column->WorkMinX;
+        }
+        else
+        {
+            // As we store an absolute value to make per-cell updates faster, we need to offset values used for width computation.
+            const float offset_from_previous_instance = column->WorkMinX - previous_instance_work_min_x;
+            column->ContentMaxXFrozen += offset_from_previous_instance;
+            column->ContentMaxXUnfrozen += offset_from_previous_instance;
+            column->ContentMaxXHeadersUsed += offset_from_previous_instance;
+            column->ContentMaxXHeadersIdeal += offset_from_previous_instance;
+        }
 
         // Don't decrement auto-fit counters until container window got a chance to submit its items
         if (table->HostSkipItems == false)
@@ -1240,7 +1258,7 @@ void ImGui::TableUpdateBorders(ImGuiTable* table)
     ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
     const float hit_half_width = TABLE_RESIZE_SEPARATOR_HALF_THICKNESS;
     const float hit_y1 = (table->FreezeRowsCount >= 1 ? table->OuterRect.Min.y : table->WorkRect.Min.y) + table->AngledHeadersHeight;
-    const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table_instance->LastOuterHeight);
+    const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table_instance->LastOuterHeight - table->AngledHeadersHeight);
     const float hit_y2_head = hit_y1 + table_instance->LastTopHeadersRowHeight;
 
     for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
@@ -1344,7 +1362,7 @@ void    ImGui::EndTable()
             max_pos_x = ImMax(max_pos_x, table->Columns[table->RightMostEnabledColumn].WorkMaxX + table->CellPaddingX + table->OuterPaddingX - outer_padding_for_border);
         if (table->ResizedColumn != -1)
             max_pos_x = ImMax(max_pos_x, table->ResizeLockMinContentsX2);
-        table->InnerWindow->DC.CursorMaxPos.x = max_pos_x + table->TempData->AngledheadersExtraWidth;
+        table->InnerWindow->DC.CursorMaxPos.x = max_pos_x + table->TempData->AngledHeadersExtraWidth;
     }
 
     // Pop clipping rect
@@ -1462,7 +1480,7 @@ void    ImGui::EndTable()
     }
     else if (temp_data->UserOuterSize.x <= 0.0f)
     {
-        const float decoration_size = table->TempData->AngledheadersExtraWidth + ((table->Flags & ImGuiTableFlags_ScrollX) ? inner_window->ScrollbarSizes.x : 0.0f);
+        const float decoration_size = table->TempData->AngledHeadersExtraWidth + ((table->Flags & ImGuiTableFlags_ScrollX) ? inner_window->ScrollbarSizes.x : 0.0f);
         outer_window->DC.IdealMaxPos.x = ImMax(outer_window->DC.IdealMaxPos.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth + decoration_size - temp_data->UserOuterSize.x);
         outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, ImMin(table->OuterRect.Max.x, table->OuterRect.Min.x + table->ColumnsAutoFitWidth));
     }
@@ -1567,6 +1585,7 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
     }
 
     // Store name (append with zero-terminator in contiguous buffer)
+    // FIXME: If we recorded the number of \n in names we could compute header row height
     column->NameOffset = -1;
     if (label != NULL && label[0] != 0)
     {
@@ -1889,7 +1908,7 @@ void ImGui::TableEndRow(ImGuiTable* table)
     if (is_visible)
     {
         // Update data for TableGetHoveredRow()
-        if (table->HoveredColumnBody != -1 && g.IO.MousePos.y >= bg_y1 && g.IO.MousePos.y < bg_y2)
+        if (table->HoveredColumnBody != -1 && g.IO.MousePos.y >= bg_y1 && g.IO.MousePos.y < bg_y2 && table_instance->HoveredRowNext < 0)
             table_instance->HoveredRowNext = table->CurrentRow;
 
         // Decide of background color for the row
@@ -2154,6 +2173,8 @@ void ImGui::TableEndCell(ImGuiTable* table)
 // - TableSetColumnWidthAutoAll() [Internal]
 // - TableUpdateColumnsWeightFromWidth() [Internal]
 //-------------------------------------------------------------------------
+// Note that actual columns widths are computed in TableUpdateLayout().
+//-------------------------------------------------------------------------
 
 // Maximum column content width given current layout. Use column->MinX so this value on a per-column basis.
 float ImGui::TableGetMaxColumnWidth(const ImGuiTable* table, int column_n)
@@ -2927,6 +2948,7 @@ void ImGui::TableSortSpecsBuild(ImGuiTable* table)
 // [SECTION] Tables: Headers
 //-------------------------------------------------------------------------
 // - TableGetHeaderRowHeight() [Internal]
+// - TableGetHeaderAngledMaxLabelWidth() [Internal]
 // - TableHeadersRow()
 // - TableHeader()
 // - TableAngledHeadersRow()
@@ -2958,7 +2980,7 @@ float ImGui::TableGetHeaderAngledMaxLabelWidth()
         if (IM_BITARRAY_TESTBIT(table->EnabledMaskByIndex, column_n))
             if (table->Columns[column_n].Flags & ImGuiTableColumnFlags_AngledHeader)
                 width = ImMax(width, CalcTextSize(TableGetColumnName(table, column_n), NULL, true).x);
-    return width + g.Style.CellPadding.x * 2.0f;
+    return width + g.Style.CellPadding.y * 2.0f; // Swap padding
 }
 
 // [Public] This is a helper to output TableHeader() calls based on the column names declared in TableSetupColumn().
@@ -3149,15 +3171,43 @@ void ImGui::TableHeader(const char* label)
 }
 
 // Unlike TableHeadersRow() it is not expected that you can reimplement or customize this with custom widgets.
-// FIXME: highlight without ImGuiTableFlags_HighlightHoveredColumn
 // FIXME: No hit-testing/button on the angled header.
 void ImGui::TableAngledHeadersRow()
 {
     ImGuiContext& g = *GImGui;
-    TableAngledHeadersRowEx(g.Style.TableAngledHeadersAngle, 0.0f);
+    ImGuiTable* table = g.CurrentTable;
+    ImGuiTableTempData* temp_data = table->TempData;
+    temp_data->AngledHeadersRequests.resize(0);
+    temp_data->AngledHeadersRequests.reserve(table->ColumnsEnabledCount);
+
+    // Which column needs highlight?
+    const ImGuiID row_id = GetID("##AngledHeaders");
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
+    int highlight_column_n = table->HighlightColumnHeader;
+    if (highlight_column_n == -1 && table->HoveredColumnBody != -1)
+        if (table_instance->HoveredRowLast == 0 && table->HoveredColumnBorder == -1 && (g.ActiveId == 0 || g.ActiveId == row_id || (table->IsActiveIdInTable || g.DragDropActive)))
+            highlight_column_n = table->HoveredColumnBody;
+
+    // Build up request
+    ImU32 col_header_bg = GetColorU32(ImGuiCol_TableHeaderBg);
+    ImU32 col_text = GetColorU32(ImGuiCol_Text);
+    for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+        if (IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
+        {
+            const int column_n = table->DisplayOrderToIndex[order_n];
+            ImGuiTableColumn* column = &table->Columns[column_n];
+            if ((column->Flags & ImGuiTableColumnFlags_AngledHeader) == 0) // Note: can't rely on ImGuiTableColumnFlags_IsVisible test here.
+                continue;
+            ImGuiTableHeaderData request = { (ImGuiTableColumnIdx)column_n, col_text, col_header_bg, (column_n == highlight_column_n) ? GetColorU32(ImGuiCol_Header) : 0 };
+            temp_data->AngledHeadersRequests.push_back(request);
+        }
+
+    // Render row
+    TableAngledHeadersRowEx(row_id, g.Style.TableAngledHeadersAngle, 0.0f, temp_data->AngledHeadersRequests.Data, temp_data->AngledHeadersRequests.Size);
 }
 
-void ImGui::TableAngledHeadersRowEx(float angle, float max_label_width)
+// Important: data must be fed left to right
+void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label_width, const ImGuiTableHeaderData* data, int data_count)
 {
     ImGuiContext& g = *GImGui;
     ImGuiTable* table = g.CurrentTable;
@@ -3180,45 +3230,41 @@ void ImGui::TableAngledHeadersRowEx(float angle, float max_label_width)
 
     // Calculate our base metrics and set angled headers data _before_ the first call to TableNextRow()
     // FIXME-STYLE: Would it be better for user to submit 'max_label_width' or 'row_height' ? One can be derived from the other.
-    const float header_height = table->RowCellPaddingY * 2.0f + g.FontSize;
-    const float row_height = ImFabs(ImRotate(ImVec2(max_label_width, flip_label ? +header_height : -header_height), cos_a, sin_a).y);
-    const ImVec2 header_angled_vector = unit_right * (row_height / -sin_a);
+    const float header_height = g.FontSize + g.Style.CellPadding.x * 2.0f;
+    const float row_height = ImTrunc(ImFabs(ImRotate(ImVec2(max_label_width, flip_label ? +header_height : -header_height), cos_a, sin_a).y));
     table->AngledHeadersHeight = row_height;
     table->AngledHeadersSlope = (sin_a != 0.0f) ? (cos_a / sin_a) : 0.0f;
+    const ImVec2 header_angled_vector = unit_right * (row_height / -sin_a); // vector from bottom-left to top-left, and from bottom-right to top-right
 
     // Declare row, override and draw our own background
     TableNextRow(ImGuiTableRowFlags_Headers, row_height);
     TableNextColumn();
+    const ImRect row_r(table->WorkRect.Min.x, table->BgClipRect.Min.y, table->WorkRect.Max.x, table->RowPosY2);
     table->DrawSplitter->SetCurrentChannel(draw_list, TABLE_DRAW_CHANNEL_BG0);
     float clip_rect_min_x = table->BgClipRect.Min.x;
     if (table->FreezeColumnsCount > 0)
         clip_rect_min_x = ImMax(clip_rect_min_x, table->Columns[table->FreezeColumnsCount - 1].MaxX);
     TableSetBgColor(ImGuiTableBgTarget_RowBg0, 0); // Cancel
     PushClipRect(table->BgClipRect.Min, table->BgClipRect.Max, false); // Span all columns
-    draw_list->AddRectFilled(table->BgClipRect.Min, table->BgClipRect.Max, GetColorU32(ImGuiCol_TableHeaderBg, 0.25f)); // FIXME-STYLE: Change row background with an arbitrary color.
+    draw_list->AddRectFilled(ImVec2(table->BgClipRect.Min.x, row_r.Min.y), ImVec2(table->BgClipRect.Max.x, row_r.Max.y), GetColorU32(ImGuiCol_TableHeaderBg, 0.25f)); // FIXME-STYLE: Change row background with an arbitrary color.
     PushClipRect(ImVec2(clip_rect_min_x, table->BgClipRect.Min.y), table->BgClipRect.Max, true); // Span all columns
 
-    const ImRect row_r(table->WorkRect.Min.x, table->BgClipRect.Min.y, table->WorkRect.Max.x, window->DC.CursorPos.y + row_height);
-    const ImGuiID row_id = GetID("##AngledHeaders");
     ButtonBehavior(row_r, row_id, NULL, NULL);
     KeepAliveID(row_id);
 
-    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
-    int highlight_column_n = table->HighlightColumnHeader;
-    if (highlight_column_n == -1 && table->HoveredColumnBody != -1)
-        if (table_instance->HoveredRowLast == 0 && table->HoveredColumnBorder == -1 && (g.ActiveId == 0 || g.ActiveId == row_id || (table->IsActiveIdInTable || g.DragDropActive)))
-            highlight_column_n = table->HoveredColumnBody;
+    const float ascent_scaled = g.Font->Ascent * (g.FontSize / g.Font->FontSize); // FIXME: Standardize those scaling factors better
+    const float line_off_for_ascent_x = (ImMax((g.FontSize - ascent_scaled) * 0.5f, 0.0f) / -sin_a) * (flip_label ? -1.0f : 1.0f);
+    const ImVec2 padding = g.Style.CellPadding; // We will always use swapped component
+    const ImVec2 align = g.Style.TableAngledHeadersTextAlign;
 
+    // Draw background and labels in first pass, then all borders.
     float max_x = 0.0f;
     for (int pass = 0; pass < 2; pass++)
-        for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
+        for (int order_n = 0; order_n < data_count; order_n++)
         {
-            if (!IM_BITARRAY_TESTBIT(table->EnabledMaskByDisplayOrder, order_n))
-                continue;
-            const int column_n = table->DisplayOrderToIndex[order_n];
+            const ImGuiTableHeaderData* request = &data[order_n];
+            const int column_n = request->Index;
             ImGuiTableColumn* column = &table->Columns[column_n];
-            if ((column->Flags & ImGuiTableColumnFlags_AngledHeader) == 0) // Note: can't rely on ImGuiTableColumnFlags_IsVisible test here.
-                continue;
 
             ImVec2 bg_shape[4];
             bg_shape[0] = ImVec2(column->MaxX, row_r.Max.y);
@@ -3228,28 +3274,60 @@ void ImGui::TableAngledHeadersRowEx(float angle, float max_label_width)
             if (pass == 0)
             {
                 // Draw shape
-                draw_list->AddQuadFilled(bg_shape[0], bg_shape[1], bg_shape[2], bg_shape[3], GetColorU32(ImGuiCol_TableHeaderBg));
-                if (column_n == highlight_column_n)
-                    draw_list->AddQuadFilled(bg_shape[0], bg_shape[1], bg_shape[2], bg_shape[3], GetColorU32(ImGuiCol_Header)); // Highlight on hover
-                //draw_list->AddQuad(bg_shape[0], bg_shape[1], bg_shape[2], bg_shape[3], GetColorU32(ImGuiCol_TableBorderLight), 1.0f);
+                draw_list->AddQuadFilled(bg_shape[0], bg_shape[1], bg_shape[2], bg_shape[3], request->BgColor0);
+                draw_list->AddQuadFilled(bg_shape[0], bg_shape[1], bg_shape[2], bg_shape[3], request->BgColor1); // Optional highlight
                 max_x = ImMax(max_x, bg_shape[3].x);
 
-                // Draw label (first draw at an offset where RenderTextXXX() function won't meddle with applying current ClipRect, then transform to final offset)
-                // FIXME: May be worth tidying up all those operations to make them easier to understand.
+                // Draw label
+                // - First draw at an offset where RenderTextXXX() function won't meddle with applying current ClipRect, then transform to final offset.
+                // - Handle multiple lines manually, as we want each lines to follow on the horizontal border, rather than see a whole block rotated.
                 const char* label_name = TableGetColumnName(table, column_n);
-                const float clip_width = max_label_width - (sin_a * table->RowCellPaddingY);
-                ImRect label_r(window->ClipRect.Min, window->ClipRect.Min + ImVec2(clip_width + (flip_label ? 0.0f : table->CellPaddingX), header_height + table->RowCellPaddingY));
-                ImVec2 label_size = CalcTextSize(label_name, NULL, true);
-                ImVec2 label_off = ImVec2(flip_label ? ImMax(0.0f, max_label_width - label_size.x - table->CellPaddingX) : table->CellPaddingX, table->RowCellPaddingY);
-                int vtx_idx_begin = draw_list->_VtxCurrentIdx;
-                RenderTextEllipsis(draw_list, label_r.Min + label_off, label_r.Max, label_r.Max.x, label_r.Max.x, label_name, NULL, &label_size);
-                //if (g.IO.KeyShift) { draw_list->AddRect(label_r.Min, label_r.Max, IM_COL32(0, 255, 0, 255), 0.0f, 0, 2.0f); }
-                int vtx_idx_end = draw_list->_VtxCurrentIdx;
+                const char* label_name_end = FindRenderedTextEnd(label_name);
+                const float line_off_step_x = (g.FontSize / -sin_a);
+                const int label_lines = ImTextCountLines(label_name, label_name_end);
 
-                // Rotate and offset label
-                ImVec2 pivot_in = label_r.GetBL();
-                ImVec2 pivot_out = ImVec2(column->WorkMinX, row_r.Max.y) + (flip_label ? (unit_right * clip_width) : ImVec2(header_height, 0.0f));
-                ShadeVertsTransformPos(draw_list, vtx_idx_begin, vtx_idx_end, pivot_in, label_cos_a, label_sin_a, pivot_out); // Rotate and offset
+                // Left<>Right alignment
+                float line_off_curr_x = flip_label ? (label_lines - 1) * line_off_step_x : 0.0f;
+                float line_off_for_align_x = ImMax((((column->MaxX - column->MinX) - padding.x * 2.0f) - (label_lines * line_off_step_x)), 0.0f) * align.x;
+                line_off_curr_x += line_off_for_align_x - line_off_for_ascent_x;
+
+                // Register header width
+                column->ContentMaxXHeadersUsed = column->ContentMaxXHeadersIdeal = column->WorkMinX + ImCeil(label_lines * line_off_step_x - line_off_for_align_x);
+
+                while (label_name < label_name_end)
+                {
+                    const char* label_name_eol = strchr(label_name, '\n');
+                    if (label_name_eol == NULL)
+                        label_name_eol = label_name_end;
+
+                    // FIXME: Individual line clipping for right-most column is broken for negative angles.
+                    ImVec2 label_size = CalcTextSize(label_name, label_name_eol);
+                    float clip_width = max_label_width - padding.y; // Using padding.y*2.0f would be symetrical but hide more text.
+                    float clip_height = ImMin(label_size.y, column->ClipRect.Max.x - column->WorkMinX - line_off_curr_x);
+                    ImRect clip_r(window->ClipRect.Min, window->ClipRect.Min + ImVec2(clip_width, clip_height));
+                    int vtx_idx_begin = draw_list->_VtxCurrentIdx;
+                    PushStyleColor(ImGuiCol_Text, request->TextColor);
+                    RenderTextEllipsis(draw_list, clip_r.Min, clip_r.Max, clip_r.Max.x, clip_r.Max.x, label_name, label_name_eol, &label_size);
+                    PopStyleColor();
+                    int vtx_idx_end = draw_list->_VtxCurrentIdx;
+
+                    // Up<>Down alignment
+                    const float available_space = ImMax(clip_width - label_size.x + ImAbs(padding.x * cos_a) * 2.0f - ImAbs(padding.y * sin_a) * 2.0f, 0.0f);
+                    const float vertical_offset = available_space * align.y * (flip_label ? -1.0f : 1.0f);
+
+                    // Rotate and offset label
+                    ImVec2 pivot_in = ImVec2(window->ClipRect.Min.x - vertical_offset, window->ClipRect.Min.y + label_size.y);
+                    ImVec2 pivot_out = ImVec2(column->WorkMinX, row_r.Max.y);
+                    line_off_curr_x += flip_label ? -line_off_step_x : line_off_step_x;
+                    pivot_out += unit_right * padding.y;
+                    if (flip_label)
+                        pivot_out += unit_right * (clip_width - ImMax(0.0f, clip_width - label_size.x));
+                    pivot_out.x += flip_label ? line_off_curr_x + line_off_step_x : line_off_curr_x;
+                    ShadeVertsTransformPos(draw_list, vtx_idx_begin, vtx_idx_end, pivot_in, label_cos_a, label_sin_a, pivot_out); // Rotate and offset
+                    //if (g.IO.KeyShift) { ImDrawList* fg_dl = GetForegroundDrawList(); vtx_idx_begin = fg_dl->_VtxCurrentIdx; fg_dl->AddRect(clip_r.Min, clip_r.Max, IM_COL32(0, 255, 0, 255), 0.0f, 0, 1.0f); ShadeVertsTransformPos(fg_dl, vtx_idx_begin, fg_dl->_VtxCurrentIdx, pivot_in, label_cos_a, label_sin_a, pivot_out); }
+
+                    label_name = label_name_eol + 1;
+                }
             }
             if (pass == 1)
             {
@@ -3259,7 +3337,7 @@ void ImGui::TableAngledHeadersRowEx(float angle, float max_label_width)
         }
     PopClipRect();
     PopClipRect();
-    table->TempData->AngledheadersExtraWidth = ImMax(0.0f, max_x - table->Columns[table->RightMostEnabledColumn].MaxX);
+    table->TempData->AngledHeadersExtraWidth = ImMax(0.0f, max_x - table->Columns[table->RightMostEnabledColumn].MaxX);
 }
 
 //-------------------------------------------------------------------------

imgui_widgets.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.90.2
+// dear imgui, v1.90.6
 // (widgets code)
 
 /*
@@ -75,6 +75,7 @@ Index of this file:
 #pragma clang diagnostic ignored "-Wenum-enum-conversion"           // warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_')
 #pragma clang diagnostic ignored "-Wdeprecated-enum-enum-conversion"// warning: bitwise operation between different enumeration types ('XXXFlags_' and 'XXXFlagsPrivate_') is deprecated
 #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"  // warning: implicit conversion from 'xxx' to 'float' may lose precision
+#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access
 #elif defined(__GNUC__)
 #pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind
 #pragma GCC diagnostic ignored "-Wformat-nonliteral"                // warning: format not a string literal, format string not checked
@@ -122,9 +123,9 @@ static const ImU64          IM_U64_MAX = (2ULL * 9223372036854775807LL + 1);
 //-------------------------------------------------------------------------
 
 // For InputTextEx()
-static bool             InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source);
-static int              InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end);
-static ImVec2           InputTextCalcTextSizeW(ImGuiContext* ctx, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
+static bool     InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, bool input_source_is_clipboard = false);
+static int      InputTextCalcTextLenAndLineCount(const char* text_begin, const char** out_text_end);
+static ImVec2   InputTextCalcTextSizeW(ImGuiContext* ctx, const ImWchar* text_begin, const ImWchar* text_end, const ImWchar** remaining = NULL, ImVec2* out_offset = NULL, bool stop_on_new_line = false);
 
 //-------------------------------------------------------------------------
 // [SECTION] Widgets: Text, etc.
@@ -508,7 +509,7 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
     // Alternate registration spot, for when caller didn't use ItemAdd()
-    if (id != 0 && g.LastItemData.ID != id)
+    if (g.LastItemData.ID != id)
         IMGUI_TEST_ENGINE_ITEM_ADD(id, bb, NULL);
 #endif
 
@@ -536,6 +537,8 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
     const ImGuiID test_owner_id = (flags & ImGuiButtonFlags_NoTestKeyOwner) ? ImGuiKeyOwner_Any : id;
     if (hovered)
     {
+        IM_ASSERT(id != 0); // Lazily check inside rare path.
+
         // Poll mouse buttons
         // - 'mouse_button_clicked' is generally carried into ActiveIdMouseButton when setting ActiveId.
         // - Technically we only need some values in one code path, but since this is gated by hovered test this is fine.
@@ -1294,24 +1297,47 @@ void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* over
     if (!ItemAdd(bb, 0))
         return;
 
-    // Render
-    fraction = ImSaturate(fraction);
-    RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
-    bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize));
-    const ImVec2 fill_br = ImVec2(ImLerp(bb.Min.x, bb.Max.x, fraction), bb.Max.y);
-    RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), 0.0f, fraction, style.FrameRounding);
+    // Fraction < 0.0f will display an indeterminate progress bar animation
+    // The value must be animated along with time, so e.g. passing '-1.0f * ImGui::GetTime()' as fraction works.
+    const bool is_indeterminate = (fraction < 0.0f);
+    if (!is_indeterminate)
+        fraction = ImSaturate(fraction);
 
-    // Default displaying the fraction as percentage string, but user can override it
-    char overlay_buf[32];
-    if (!overlay)
+    // Out of courtesy we accept a NaN fraction without crashing
+    float fill_n0 = 0.0f;
+    float fill_n1 = (fraction == fraction) ? fraction : 0.0f;
+
+    if (is_indeterminate)
     {
-        ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction * 100 + 0.01f);
-        overlay = overlay_buf;
+        const float fill_width_n = 0.2f;
+        fill_n0 = ImFmod(-fraction, 1.0f) * (1.0f + fill_width_n) - fill_width_n;
+        fill_n1 = ImSaturate(fill_n0 + fill_width_n);
+        fill_n0 = ImSaturate(fill_n0);
     }
 
-    ImVec2 overlay_size = CalcTextSize(overlay, NULL);
-    if (overlay_size.x > 0.0f)
-        RenderTextClipped(ImVec2(ImClamp(fill_br.x + style.ItemSpacing.x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImVec2(0.0f, 0.5f), &bb);
+    // Render
+    RenderFrame(bb.Min, bb.Max, GetColorU32(ImGuiCol_FrameBg), true, style.FrameRounding);
+    bb.Expand(ImVec2(-style.FrameBorderSize, -style.FrameBorderSize));
+    RenderRectFilledRangeH(window->DrawList, bb, GetColorU32(ImGuiCol_PlotHistogram), fill_n0, fill_n1, style.FrameRounding);
+
+    // Default displaying the fraction as percentage string, but user can override it
+    // Don't display text for indeterminate bars by default
+    char overlay_buf[32];
+    if (!is_indeterminate || overlay != NULL)
+    {
+        if (!overlay)
+        {
+            ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.0f%%", fraction * 100 + 0.01f);
+            overlay = overlay_buf;
+        }
+
+        ImVec2 overlay_size = CalcTextSize(overlay, NULL);
+        if (overlay_size.x > 0.0f)
+        {
+            float text_x = is_indeterminate ? (bb.Min.x + bb.Max.x - overlay_size.x) * 0.5f : ImLerp(bb.Min.x, bb.Max.x, fill_n1) + style.ItemSpacing.x;
+            RenderTextClipped(ImVec2(ImClamp(text_x, bb.Min.x, bb.Max.x - overlay_size.x - style.ItemInnerSpacing.x), bb.Min.y), bb.Max, overlay, NULL, &overlay_size, ImVec2(0.0f, 0.5f), &bb);
+        }
+    }
 }
 
 void ImGui::Bullet()
@@ -2001,7 +2027,7 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*old_getter)(void*
 // - DataTypeGetInfo()
 // - DataTypeFormatString()
 // - DataTypeApplyOp()
-// - DataTypeApplyOpFromText()
+// - DataTypeApplyFromText()
 // - DataTypeCompare()
 // - DataTypeClamp()
 // - GetMinimumStepAtDecimalPrecision
@@ -3432,7 +3458,7 @@ bool ImGui::TempInputScalar(const ImRect& bb, ImGuiID id, const char* label, ImG
     DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, p_data, format);
     ImStrTrimBlanks(data_buf);
 
-    ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | (ImGuiInputTextFlags)ImGuiInputTextFlags_NoMarkEdited;
+    ImGuiInputTextFlags flags = ImGuiInputTextFlags_AutoSelectAll | (ImGuiInputTextFlags)ImGuiInputTextFlags_NoMarkEdited | (ImGuiInputTextFlags)ImGuiInputTextFlags_LocalizeDecimalPoint;
 
     bool value_changed = false;
     if (TempInputText(bb, id, label, data_buf, IM_ARRAYSIZE(data_buf), flags))
@@ -3477,6 +3503,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data
     DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, p_data, format);
 
     flags |= ImGuiInputTextFlags_AutoSelectAll | (ImGuiInputTextFlags)ImGuiInputTextFlags_NoMarkEdited; // We call MarkItemEdited() ourselves by comparing the actual data rather than the string.
+    flags |= (ImGuiInputTextFlags)ImGuiInputTextFlags_LocalizeDecimalPoint;
 
     bool value_changed = false;
     if (p_step == NULL)
@@ -3922,9 +3949,8 @@ void ImGuiInputTextCallbackData::InsertChars(int pos, const char* new_text, cons
 }
 
 // Return false to discard a character.
-static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, ImGuiInputSource input_source)
+static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback, void* user_data, bool input_source_is_clipboard)
 {
-    IM_ASSERT(input_source == ImGuiInputSource_Keyboard || input_source == ImGuiInputSource_Clipboard);
     unsigned int c = *p_char;
 
     // Filter non-printable (NB: isprint is unreliable! see #2467)
@@ -3939,7 +3965,7 @@ static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, Im
         apply_named_filters = false; // Override named filters below so newline and tabs can still be inserted.
     }
 
-    if (input_source != ImGuiInputSource_Clipboard)
+    if (input_source_is_clipboard == false)
     {
         // We ignore Ascii representation of delete (emitted from Backspace on OSX, see #2578, #2817)
         if (c == 127)
@@ -3955,7 +3981,7 @@ static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, Im
         return false;
 
     // Generic named filters
-    if (apply_named_filters && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase | ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_CharsScientific)))
+    if (apply_named_filters && (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase | ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_CharsScientific | (ImGuiInputTextFlags)ImGuiInputTextFlags_LocalizeDecimalPoint)))
     {
         // The libc allows overriding locale, with e.g. 'setlocale(LC_NUMERIC, "de_DE.UTF-8");' which affect the output/input of printf/scanf to use e.g. ',' instead of '.'.
         // The standard mandate that programs starts in the "C" locale where the decimal point is '.'.
@@ -3965,7 +3991,7 @@ static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, Im
         // Users of non-default decimal point (in particular ',') may be affected by word-selection logic (is_word_boundary_from_right/is_word_boundary_from_left) functions.
         ImGuiContext& g = *ctx;
         const unsigned c_decimal_point = (unsigned int)g.IO.PlatformLocaleDecimalPoint;
-        if (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsScientific))
+        if (flags & (ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_CharsScientific | (ImGuiInputTextFlags)ImGuiInputTextFlags_LocalizeDecimalPoint))
             if (c == '.' || c == ',')
                 c = c_decimal_point;
 
@@ -4424,7 +4450,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
             if (Shortcut(ImGuiKey_Tab, id, ImGuiInputFlags_Repeat))
             {
                 unsigned int c = '\t'; // Insert TAB
-                if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data))
                     state->OnKeyPressed((int)c);
             }
             // FIXME: Implement Shift+Tab
@@ -4447,7 +4473,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
                     unsigned int c = (unsigned int)io.InputQueueCharacters[n];
                     if (c == '\t') // Skip Tab, see above.
                         continue;
-                    if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                    if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data))
                         state->OnKeyPressed((int)c);
                 }
 
@@ -4530,7 +4556,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
             else if (!is_readonly)
             {
                 unsigned int c = '\n'; // Insert new line
-                if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data, ImGuiInputSource_Keyboard))
+                if (InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data))
                     state->OnKeyPressed((int)c);
             }
         }
@@ -4597,7 +4623,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
                 {
                     unsigned int c;
                     s += ImTextCharFromUtf8(&c, s, NULL);
-                    if (!InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data, ImGuiInputSource_Clipboard))
+                    if (!InputTextFilterCharacter(&g, &c, flags, callback, callback_user_data, true))
                         continue;
                     clipboard_filtered[clipboard_filtered_len++] = (ImWchar)c;
                 }
@@ -6186,13 +6212,17 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
         label_end = FindRenderedTextEnd(label);
     const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
+    const float text_offset_x = g.FontSize + (display_frame ? padding.x * 3 : padding.x * 2);   // Collapsing arrow width + Spacing
+    const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset);            // Latch before ItemSize changes it
+    const float text_width = g.FontSize + label_size.x + padding.x * 2;                         // Include collapsing arrow
+
     // We vertically grow up to current line height up the typical widget height.
     const float frame_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), label_size.y + padding.y * 2);
     const bool span_all_columns = (flags & ImGuiTreeNodeFlags_SpanAllColumns) != 0 && (g.CurrentTable != NULL);
     ImRect frame_bb;
     frame_bb.Min.x = span_all_columns ? window->ParentWorkRect.Min.x : (flags & ImGuiTreeNodeFlags_SpanFullWidth) ? window->WorkRect.Min.x : window->DC.CursorPos.x;
     frame_bb.Min.y = window->DC.CursorPos.y;
-    frame_bb.Max.x = span_all_columns ? window->ParentWorkRect.Max.x : window->WorkRect.Max.x;
+    frame_bb.Max.x = span_all_columns ? window->ParentWorkRect.Max.x : (flags & ImGuiTreeNodeFlags_SpanTextWidth) ? window->DC.CursorPos.x + text_width + padding.x : window->WorkRect.Max.x;
     frame_bb.Max.y = window->DC.CursorPos.y + frame_height;
     if (display_frame)
     {
@@ -6202,16 +6232,13 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
         frame_bb.Max.x += IM_TRUNC(window->WindowPadding.x * 0.5f);
     }
 
-    const float text_offset_x = g.FontSize + (display_frame ? padding.x * 3 : padding.x * 2);           // Collapsing arrow width + Spacing
-    const float text_offset_y = ImMax(padding.y, window->DC.CurrLineTextBaseOffset);                    // Latch before ItemSize changes it
-    const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x * 2 : 0.0f);  // Include collapsing
     ImVec2 text_pos(window->DC.CursorPos.x + text_offset_x, window->DC.CursorPos.y + text_offset_y);
     ItemSize(ImVec2(text_width, frame_height), padding.y);
 
     // For regular tree nodes, we arbitrary allow to click past 2 worth of ItemSpacing
     ImRect interact_bb = frame_bb;
-    if (!display_frame && (flags & (ImGuiTreeNodeFlags_SpanAvailWidth | ImGuiTreeNodeFlags_SpanFullWidth | ImGuiTreeNodeFlags_SpanAllColumns)) == 0)
-        interact_bb.Max.x = frame_bb.Min.x + text_width + style.ItemSpacing.x * 2.0f;
+    if ((flags & (ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_SpanAvailWidth | ImGuiTreeNodeFlags_SpanFullWidth | ImGuiTreeNodeFlags_SpanTextWidth | ImGuiTreeNodeFlags_SpanAllColumns)) == 0)
+        interact_bb.Max.x = frame_bb.Min.x + text_width + (label_size.x > 0.0f ? style.ItemSpacing.x * 2.0f : 0.0f);
 
     // Modify ClipRect for the ItemAdd(), faster than doing a PushColumnsBackground/PushTableBackgroundChannel for every Selectable..
     const float backup_clip_rect_min_x = window->ClipRect.Min.x;
@@ -6935,6 +6962,7 @@ bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
         ImVec2 label_pos = ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y);
         RenderText(label_pos, label);
         window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, label_pos + label_size);
+        AlignTextToFramePadding();
     }
 
     BeginChild(id, frame_bb.GetSize(), ImGuiChildFlags_FrameStyle);
@@ -7281,7 +7309,7 @@ bool ImGui::BeginMenuBar()
     // We don't clip with current window clipping rectangle as it is already set to the area below. However we clip with window full rect.
     // We remove 1 worth of rounding to Max.x to that text in long menus and small windows don't tend to display over the lower-right rounded area, which looks particularly glitchy.
     ImRect bar_rect = window->MenuBarRect();
-    ImRect clip_rect(IM_ROUND(bar_rect.Min.x + window->WindowBorderSize), IM_ROUND(bar_rect.Min.y + window->WindowBorderSize), IM_ROUND(ImMax(bar_rect.Min.x, bar_rect.Max.x - ImMax(window->WindowRounding, window->WindowBorderSize))), IM_ROUND(bar_rect.Max.y));
+    ImRect clip_rect(ImFloor(bar_rect.Min.x + window->WindowBorderSize), ImFloor(bar_rect.Min.y + window->WindowBorderSize), ImFloor(ImMax(bar_rect.Min.x, bar_rect.Max.x - ImMax(window->WindowRounding, window->WindowBorderSize))), ImFloor(bar_rect.Max.y));
     clip_rect.ClipWith(window->OuterRectClipped);
     PushClipRect(clip_rect.Min, clip_rect.Max, false);