Premake: Only build example_sdl2_vulkan with both sdl2 and vulkan (7852)

(neater vs project output but certainly less standard than cmake)
(amended 2022-09-28)
(amended 2023-02-07)

.gitignore

@@ -1,5 +1,7 @@
-## OSX artifacts
+## Misc artifacts
 .DS_Store
+.claude
+.vscode
 
 ## Dear ImGui artifacts
 imgui.ini
@@ -55,9 +57,6 @@ examples/example_sdl3_wgpu/web/*
 .idea
 cmake-build-*
 
-## VS code artifacts
-.vscode
-
 ## Unix executables from our example Makefiles
 examples/example_apple_metal/example_apple_metal
 examples/example_apple_opengl2/example_apple_opengl2

backends/imgui_impl_allegro5.cpp

@@ -9,6 +9,7 @@
 //  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features or Issues:
 //  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
 //  [ ] Platform: Missing gamepad support.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
@@ -21,6 +22,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState (others cannot be supported by Allegro5). (#9378)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() and platform_io.ClearPlatformHandlers() on shutdown.
 //  2025-08-12: Inputs: fixed missing support for ImGuiKey_PrintScreen under Windows, as raw Allegro 5 does not receive it.
 //  2025-08-12: Added ImGui_ImplAllegro5_SetDisplay() function to change current ALLEGRO_DISPLAY, as Allegro applications often need to do that.
@@ -136,7 +138,10 @@ static void ImGui_ImplAllegro5_SetupRenderState(ImDrawData* draw_data)
     }
 }
 
-// Render function.
+// Draw callbacks
+static void ImGui_ImplAllegro5_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*) {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+
+// Render function
 void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
 {
     // Avoid rendering when minimized
@@ -152,6 +157,7 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
 
     // Backup Allegro state that will be modified
     ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ALLEGRO_TRANSFORM last_transform = *al_get_current_transform();
     ALLEGRO_TRANSFORM last_projection_transform = *al_get_current_projection_transform();
     int last_clip_x, last_clip_y, last_clip_w, last_clip_h;
@@ -208,8 +214,7 @@ void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplAllegro5_DrawCallback_ResetRenderState)
                     ImGui_ImplAllegro5_SetupRenderState(draw_data);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -486,11 +491,12 @@ bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
 
     ImGui_ImplAllegro5_SetDisplay(display);
 
-#if ALLEGRO_HAS_CLIPBOARD
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+#if ALLEGRO_HAS_CLIPBOARD
     platform_io.Platform_SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
     platform_io.Platform_GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
 #endif
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplAllegro5_DrawCallback_ResetRenderState;
 
     return true;
 }

backends/imgui_impl_allegro5.h

@@ -9,6 +9,7 @@
 //  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features or Issues:
 //  [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: Allegro5 cannot enable/disable LINEAR bitmap flags after creation.
 //  [ ] Platform: Missing gamepad support.
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.

backends/imgui_impl_dx10.cpp

@@ -16,7 +16,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2026-01-19: DirectX11: Added 'SamplerNearest' in ImGui_ImplDX11_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'. 
+//  2026-04-23: DirectX10: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. Obsoleting samplers from ImGui_ImplDX10_RenderState. (#9378)
+//  2026-01-19: DirectX10: Added 'SamplerNearest' in ImGui_ImplDX10_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'. 
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX10: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
 //  2025-05-07: DirectX10: Honor draw_data->FramebufferScale to allow for custom backends and experiment using it (consistently with other renderer backends, even though in normal condition it is not set under Windows).
@@ -153,6 +154,11 @@ static void ImGui_ImplDX10_SetupRenderState(ImDrawData* draw_data, ID3D10Device*
     device->RSSetState(bd->pRasterizerState);
 }
 
+// Draw callbacks
+static void ImGui_ImplDX10_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)       {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplDX10_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)       { ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData(); bd->pd3dDevice->PSSetSamplers(0, 1, &bd->pTexSamplerLinear); }
+static void ImGui_ImplDX10_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)      { ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData(); bd->pd3dDevice->PSSetSamplers(0, 1, &bd->pTexSamplerNearest); }
+
 // Render function
 void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
 {
@@ -177,7 +183,7 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
         bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
         D3D10_BUFFER_DESC desc = {};
         desc.Usage = D3D10_USAGE_DYNAMIC;
-        desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
+        desc.ByteWidth = (UINT)bd->VertexBufferSize * sizeof(ImDrawVert);
         desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
         desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
         desc.MiscFlags = 0;
@@ -191,7 +197,7 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
         bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
         D3D10_BUFFER_DESC desc = {};
         desc.Usage = D3D10_USAGE_DYNAMIC;
-        desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
+        desc.ByteWidth = (UINT)bd->IndexBufferSize * sizeof(ImDrawIdx);
         desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
         desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
         if (device->CreateBuffer(&desc, nullptr, &bd->pIB) < 0)
@@ -260,8 +266,6 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ImGui_ImplDX10_RenderState render_state;
     render_state.Device = bd->pd3dDevice;
-    render_state.SamplerLinear = bd->pTexSamplerLinear;
-    render_state.SamplerNearest = bd->pTexSamplerNearest;
     render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
     platform_io.Renderer_RenderState = &render_state;
 
@@ -279,8 +283,7 @@ void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplDX10_DrawCallback_ResetRenderState)
                     ImGui_ImplDX10_SetupRenderState(draw_data, device);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -613,6 +616,9 @@ bool    ImGui_ImplDX10_Init(ID3D10Device* device)
 
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX10_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX10_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX10_DrawCallback_SetSamplerNearest;
 
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;

backends/imgui_impl_dx10.h

@@ -41,9 +41,9 @@ IMGUI_IMPL_API void     ImGui_ImplDX10_UpdateTexture(ImTextureData* tex);
 struct ImGui_ImplDX10_RenderState
 {
     ID3D10Device*           Device;
-    ID3D10SamplerState*     SamplerLinear;
-    ID3D10SamplerState*     SamplerNearest;
     ID3D10Buffer*           VertexConstantBuffer;
+    //ID3D10SamplerState*   SamplerLinear;          // Use ImDrawList::AddCallback(ImGui::GetPlatform().DrawCallback_SetSamplerLinear)
+    //ID3D10SamplerState*   SamplerNearest;         // Use ImDrawList::AddCallback(ImGui::GetPlatform().DrawCallback_SetSamplerNearest)
 };
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx11.cpp

@@ -17,6 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: DirectX11: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. Obsoleting samplers from ImGui_ImplDX11_RenderState. (#9378)
 //  2026-01-19: DirectX11: Added 'SamplerNearest' in ImGui_ImplDX11_RenderState. Renamed 'SamplerDefault' to 'SamplerLinear'.
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
@@ -85,6 +86,7 @@ struct ImGui_ImplDX11_Data
     ID3D11DepthStencilState*    pDepthStencilState;
     int                         VertexBufferSize;
     int                         IndexBufferSize;
+    ImGui_ImplDX11_RenderState* RenderState;            // == (ImGui_ImplDX11_RenderState*)ImGui::GetPlatformIO().Renderer_RenderState during rendering.
 
     ImGui_ImplDX11_Data()       { memset((void*)this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
 };
@@ -159,6 +161,11 @@ static void ImGui_ImplDX11_SetupRenderState(const ImDrawData* draw_data, ID3D11D
     device_ctx->RSSetState(bd->pRasterizerState);
 }
 
+// Draw callbacks
+static void ImGui_ImplDX11_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)       {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplDX11_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)       { ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData(); bd->RenderState->DeviceContext->PSSetSamplers(0, 1, &bd->pTexSamplerLinear); }
+static void ImGui_ImplDX11_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)      { ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData(); bd->RenderState->DeviceContext->PSSetSamplers(0, 1, &bd->pTexSamplerNearest); }
+
 // Render function
 void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
 {
@@ -183,7 +190,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
         bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
         D3D11_BUFFER_DESC desc = {};
         desc.Usage = D3D11_USAGE_DYNAMIC;
-        desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
+        desc.ByteWidth = (UINT)bd->VertexBufferSize * sizeof(ImDrawVert);
         desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
         desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
         desc.MiscFlags = 0;
@@ -196,7 +203,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
         bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
         D3D11_BUFFER_DESC desc = {};
         desc.Usage = D3D11_USAGE_DYNAMIC;
-        desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
+        desc.ByteWidth = (UINT)bd->IndexBufferSize * sizeof(ImDrawIdx);
         desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
         desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
         if (bd->pd3dDevice->CreateBuffer(&desc, nullptr, &bd->pIB) < 0)
@@ -274,10 +281,8 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
     ImGui_ImplDX11_RenderState render_state;
     render_state.Device = bd->pd3dDevice;
     render_state.DeviceContext = bd->pd3dDeviceContext;
-    render_state.SamplerLinear = bd->pTexSamplerLinear;
-    render_state.SamplerNearest = bd->pTexSamplerNearest;
     render_state.VertexConstantBuffer = bd->pVertexConstantBuffer;
-    platform_io.Renderer_RenderState = &render_state;
+    platform_io.Renderer_RenderState = bd->RenderState = &render_state;
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
@@ -293,8 +298,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplDX11_DrawCallback_ResetRenderState)
                     ImGui_ImplDX11_SetupRenderState(draw_data, device);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -320,7 +324,7 @@ void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = bd->RenderState = nullptr;
 
     // Restore modified DX state
     device->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
@@ -629,6 +633,9 @@ bool    ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_co
 
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX11_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX11_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX11_DrawCallback_SetSamplerNearest;
 
     // Get factory from device
     IDXGIDevice* pDXGIDevice = nullptr;

backends/imgui_impl_dx11.h

@@ -44,9 +44,9 @@ struct ImGui_ImplDX11_RenderState
 {
     ID3D11Device*           Device;
     ID3D11DeviceContext*    DeviceContext;
-    ID3D11SamplerState*     SamplerLinear;
-    ID3D11SamplerState*     SamplerNearest;
     ID3D11Buffer*           VertexConstantBuffer;
+    //ID3D11SamplerState*   SamplerLinear;          // Use ImDrawList::AddCallback(ImGui::GetPlatform().DrawCallback_SetSamplerLinear)
+    //ID3D11SamplerState*   SamplerNearest;         // Use ImDrawList::AddCallback(ImGui::GetPlatform().DrawCallback_SetSamplerNearest)
 };
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_dx12.cpp

@@ -20,6 +20,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2025-10-11: DirectX12: Reuse texture upload buffer and grow it only when necessary. (#9002)
 //  2025-09-29: DirectX12: Rework synchronization logic. (#8961)
 //  2025-09-29: DirectX12: Enable swapchain tearing to eliminate viewports framerate throttling. (#8965)
@@ -91,6 +92,8 @@ struct ImGui_ImplDX12_Texture
 struct ImGui_ImplDX12_Data
 {
     ImGui_ImplDX12_InitInfo     InitInfo;
+    ImGui_ImplDX12_RenderState* RenderState;
+        
     IDXGIFactory5*              pdxgiFactory;
     ID3D12Device*               pd3dDevice;
     ID3D12RootSignature*        pRootSignatureLinear;
@@ -142,19 +145,15 @@ struct VERTEX_CONSTANT_BUFFER_DX12
     float   mvp[4][4];
 };
 
-// FIXME-WIP: Allow user to forward declare those two, for until we come up with a backend agnostic API to do this. (#9173)
-void ImGui_ImplDX12_SetupSamplerLinear(ID3D12GraphicsCommandList* command_list);
-void ImGui_ImplDX12_SetupSamplerNearest(ID3D12GraphicsCommandList* command_list);
-
 // Functions
-void ImGui_ImplDX12_SetupSamplerLinear(ID3D12GraphicsCommandList* command_list)
+static void ImGui_ImplDX12_SetupSamplerLinear(ID3D12GraphicsCommandList* command_list)
 {
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     command_list->SetPipelineState(bd->pPipelineStateLinear);
     command_list->SetGraphicsRootSignature(bd->pRootSignatureLinear);
 }
 
-void ImGui_ImplDX12_SetupSamplerNearest(ID3D12GraphicsCommandList* command_list)
+static void ImGui_ImplDX12_SetupSamplerNearest(ID3D12GraphicsCommandList* command_list)
 {
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     command_list->SetPipelineState(bd->pPipelineStateNearest);
@@ -200,7 +199,7 @@ static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12Graphic
     command_list->IASetVertexBuffers(0, 1, &vbv);
     D3D12_INDEX_BUFFER_VIEW ibv = {};
     ibv.BufferLocation = fr->IndexBuffer->GetGPUVirtualAddress();
-    ibv.SizeInBytes = fr->IndexBufferSize * sizeof(ImDrawIdx);
+    ibv.SizeInBytes = (UINT)fr->IndexBufferSize * sizeof(ImDrawIdx);
     ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
     command_list->IASetIndexBuffer(&ibv);
     command_list->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
@@ -220,6 +219,11 @@ static inline void SafeRelease(T*& res)
     res = nullptr;
 }
 
+// Draw callbacks
+static void ImGui_ImplDX12_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)   {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplDX12_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData(); ImGui_ImplDX12_SetupSamplerLinear(bd->RenderState->CommandList); }
+static void ImGui_ImplDX12_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)  { ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData(); ImGui_ImplDX12_SetupSamplerNearest(bd->RenderState->CommandList); }
+
 // Render function
 void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* command_list)
 {
@@ -317,7 +321,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
     ImGui_ImplDX12_RenderState render_state;
     render_state.Device = bd->pd3dDevice;
     render_state.CommandList = command_list;
-    platform_io.Renderer_RenderState = &render_state;
+    platform_io.Renderer_RenderState = bd->RenderState = &render_state;
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
@@ -334,7 +338,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
             {
                 // User callback, registered via ImDrawList::AddCallback()
                 // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplDX12_DrawCallback_ResetRenderState)
                     ImGui_ImplDX12_SetupRenderState(draw_data, command_list, fr);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -361,7 +365,7 @@ void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandL
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = bd->RenderState = nullptr;
 }
 
 static void ImGui_ImplDX12_DestroyTexture(ImTextureData* tex)
@@ -664,7 +668,7 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignatureLinear));
         blob->Release();
 
-        // Root Signature for ImDrawCallback_SetSamplerNearest
+        // Nearest sampler
         staticSampler[0].Filter = D3D12_FILTER_MIN_MAG_MIP_POINT;
         if (D3D12SerializeRootSignatureFn(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, nullptr) != S_OK)
             return false;
@@ -813,7 +817,6 @@ bool    ImGui_ImplDX12_CreateDeviceObjects()
         return false;
     }
 
-    // Pipeline State for ImDrawCallback_SetSamplerNearest
     psoDesc.pRootSignature = bd->pRootSignatureNearest;
 
     result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineStateNearest));
@@ -927,6 +930,11 @@ bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* init_info)
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX12_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX12_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX12_DrawCallback_SetSamplerNearest;
+
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
     if (init_info->SrvDescriptorAllocFn == nullptr)
         ImGui_ImplDX12_InitLegacySingleDescriptorMode(init_info);
@@ -971,6 +979,7 @@ bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FO
     bool ret = ImGui_ImplDX12_Init(&init_info);
     ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
     bd->commandQueueOwned = true;
+
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags &= ~ImGuiBackendFlags_RendererHasTextures; // Using legacy ImGui_ImplDX12_Init() call with 1 SRV descriptor we cannot support multiple textures.
 

backends/imgui_impl_dx9.cpp

@@ -17,6 +17,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-03-19: Fixed issue in ImGui_ImplDX9_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: DirectX9: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas.
@@ -162,6 +163,11 @@ static void ImGui_ImplDX9_SetupRenderState(ImDrawData* draw_data)
     }
 }
 
+// Draw callbacks
+static void ImGui_ImplDX9_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplDX9_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR); bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR); }
+static void ImGui_ImplDX9_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData(); bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT); bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT); }
+
 // Render function.
 void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
 {
@@ -184,14 +190,14 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
     {
         if (bd->pVB) { bd->pVB->Release(); bd->pVB = nullptr; }
         bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
-        if (device->CreateVertexBuffer(bd->VertexBufferSize * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &bd->pVB, nullptr) < 0)
+        if (device->CreateVertexBuffer((UINT)bd->VertexBufferSize * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &bd->pVB, nullptr) < 0)
             return;
     }
     if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
     {
         if (bd->pIB) { bd->pIB->Release(); bd->pIB = nullptr; }
         bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
-        if (device->CreateIndexBuffer(bd->IndexBufferSize * sizeof(ImDrawIdx), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, sizeof(ImDrawIdx) == 2 ? D3DFMT_INDEX16 : D3DFMT_INDEX32, D3DPOOL_DEFAULT, &bd->pIB, nullptr) < 0)
+        if (device->CreateIndexBuffer((UINT)bd->IndexBufferSize * sizeof(ImDrawIdx), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, sizeof(ImDrawIdx) == 2 ? D3DFMT_INDEX16 : D3DFMT_INDEX32, D3DPOOL_DEFAULT, &bd->pIB, nullptr) < 0)
             return;
     }
 
@@ -269,8 +275,7 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplDX9_DrawCallback_ResetRenderState)
                     ImGui_ImplDX9_SetupRenderState(draw_data);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -325,46 +330,6 @@ static bool ImGui_ImplDX9_CheckFormatSupport(LPDIRECT3DDEVICE9 pDevice, D3DFORMA
     return support;
 }
 
-bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-
-    // Setup backend capabilities flags
-    ImGui_ImplDX9_Data* bd = IM_NEW(ImGui_ImplDX9_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_dx9";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = 4096;
-
-    bd->pd3dDevice = device;
-    bd->pd3dDevice->AddRef();
-    bd->HasRgbaSupport = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
-
-    return true;
-}
-
-void ImGui_ImplDX9_Shutdown()
-{
-    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplDX9_InvalidateDeviceObjects();
-    if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-    IM_DELETE(bd);
-}
-
 // Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
 static void ImGui_ImplDX9_CopyTextureRegion(bool tex_use_colors, const ImU32* src, int src_pitch, ImU32* dst, int dst_pitch, int w, int h)
 {
@@ -477,6 +442,50 @@ void ImGui_ImplDX9_NewFrame()
     IM_UNUSED(bd);
 }
 
+
+bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplDX9_Data* bd = IM_NEW(ImGui_ImplDX9_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_dx9";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = 4096;
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplDX9_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplDX9_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplDX9_DrawCallback_SetSamplerNearest;
+
+    bd->pd3dDevice = device;
+    bd->pd3dDevice->AddRef();
+    bd->HasRgbaSupport = ImGui_ImplDX9_CheckFormatSupport(bd->pd3dDevice, D3DFMT_A8B8G8R8);
+
+    return true;
+}
+
+void ImGui_ImplDX9_Shutdown()
+{
+    ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplDX9_InvalidateDeviceObjects();
+    if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
 //-----------------------------------------------------------------------------
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_glfw.cpp

@@ -29,6 +29,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-21: Added a Win32-specific implementation of ImGui_ImplGlfw_GetContentScaleXXXX functions for legacy GLFW 3.2.
 //  2026-03-25: Mouse cursor is properly restored if changed by user app/code while using glfwSetInputMode(..., GLFW_CURSOR_DISABLED) or ImGuiConfigFlags_NoMouseCursorChange. Amend change from 2025-12-10.
 //  2026-02-10: Try to set IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND automatically if corresponding headers are not accessible. (#9225)
 //  2025-12-12: Added IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND to forcefully disable either.
@@ -948,6 +949,16 @@ static void ImGui_ImplGlfw_UpdateGamepads()
     #undef MAP_ANALOG
 }
 
+// For GFLW 3.2 + Windows: include a simplified non-monitor aware version of ImGui_ImplWin32_GetDpiScaleForMonitor().
+// This is merely a band-aid to make using GLFW 3.2 a little bit nicer, but prefer to use GLFW 3.3+ or the full correct functions from the Win32 backend.
+#if !GLFW_HAS_PER_MONITOR_DPI && defined(_WIN32) && !defined(NOGDI)
+static float   ImGui_ImplWin32_GetLegacyDpiScale()   { const HDC dc = ::GetDC(nullptr); UINT xdpi = ::GetDeviceCaps(dc, LOGPIXELSX); ::ReleaseDC(nullptr, dc); return (float)xdpi / 96.0f; }
+static void    glfwGetWindowContentScale(GLFWwindow*, float* x_scale, float* y_scale)   { *x_scale = *y_scale = ImGui_ImplWin32_GetLegacyDpiScale(); }
+static void    glfwGetMonitorContentScale(GLFWmonitor*, float* x_scale, float* y_scale) { *x_scale = *y_scale = ImGui_ImplWin32_GetLegacyDpiScale(); }
+#undef GLFW_HAS_PER_MONITOR_DPI
+#define GLFW_HAS_PER_MONITOR_DPI 1
+#endif
+
 // - On Windows the process needs to be marked DPI-aware!! SDL2 doesn't do it by default. You can call ::SetProcessDPIAware() or call ImGui_ImplWin32_EnableDpiAwareness() from Win32 backend.
 // - Apple platforms use FramebufferScale so we always return 1.0f.
 // - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
@@ -1016,7 +1027,7 @@ void ImGui_ImplGlfw_NewFrame()
     // (Accept glfwGetTime() not returning a monotonically increasing value. Seems to happens on disconnecting peripherals and probably on VMs and Emscripten, see #6491, #6189, #6114, #3644)
     double current_time = glfwGetTime();
     if (current_time <= bd->Time)
-        current_time = bd->Time + 0.00001f;
+        current_time = bd->Time + 0.00001;
     io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 

backends/imgui_impl_metal.h

@@ -5,6 +5,8 @@
 //  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+// Missing features or Issues:
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks.
 
 // 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

@@ -5,6 +5,8 @@
 //  [X] Renderer: User texture binding. Use 'MTLTexture' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+// Missing features or Issues:
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks.
 
 // 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.
@@ -16,6 +18,9 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState (others are not yet supported). (#9378)
+//  2026-04-14: Metal: use a dedicated bufferCacheLock to avoid crashing when bufferCache is replaced by a new object while being used for @synchronize(). (#9367)
+//  2026-04-03: Metal: avoid redundant vertex buffer bind in SetupRenderState. (#9343)
 //  2026-03-19: Fixed issue in ImGui_ImplMetal_RenderDrawData() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplMetal_CreateFontsTexture() and ImGui_ImplMetal_DestroyFontsTexture().
@@ -77,6 +82,7 @@
 @property (nonatomic, strong) FramebufferDescriptor*        framebufferDescriptor; // framebuffer descriptor for current frame; transient
 @property (nonatomic, strong) NSMutableDictionary*          renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
 @property (nonatomic, strong) NSMutableArray<MetalBuffer*>* bufferCache;
+@property (nonatomic, strong) NSObject*                     bufferCacheLock;
 @property (nonatomic, assign) double                        lastBufferCachePurge;
 - (MetalBuffer*)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
 - (id<MTLRenderPipelineState>)renderPipelineStateForFramebufferDescriptor:(FramebufferDescriptor*)descriptor device:(id<MTLDevice>)device;
@@ -127,41 +133,6 @@ bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device)
 
 #pragma mark - Dear ImGui Metal Backend API
 
-bool ImGui_ImplMetal_Init(id<MTLDevice> device)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-
-    ImGui_ImplMetal_Data* bd = IM_NEW(ImGui_ImplMetal_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_metal";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    bd->SharedMetalContext = [[MetalContext alloc] init];
-    bd->SharedMetalContext.device = device;
-
-    return true;
-}
-
-void ImGui_ImplMetal_Shutdown()
-{
-    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
-    IM_UNUSED(bd);
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplMetal_DestroyDeviceObjects();
-    ImGui_ImplMetal_DestroyBackendData();
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-}
-
 void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor)
 {
     ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
@@ -215,10 +186,12 @@ static void ImGui_ImplMetal_SetupRenderState(ImDrawData* draw_data, id<MTLComman
 
     [commandEncoder setRenderPipelineState:renderPipelineState];
 
-    [commandEncoder setVertexBuffer:vertexBuffer.buffer offset:0 atIndex:0];
-    [commandEncoder setVertexBufferOffset:vertexBufferOffset atIndex:0];
+    [commandEncoder setVertexBuffer:vertexBuffer.buffer offset:vertexBufferOffset atIndex:0];
 }
 
+// Draw callbacks
+static void ImGui_ImplMetal_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*) {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+
 // Metal Render function.
 void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
 {
@@ -275,8 +248,7 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
             if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplMetal_DrawCallback_ResetRenderState)
                     ImGui_ImplMetal_SetupRenderState(draw_data, commandBuffer, commandEncoder, renderPipelineState, vertexBuffer, vertexBufferOffset);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -290,8 +262,8 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
                 // Clamp to viewport as setScissorRect() won't accept values that are off bounds
                 if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
                 if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
-                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
-                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
                 if (pcmd->ElemCount == 0) // drawIndexedPrimitives() validation doesn't accept this
@@ -328,13 +300,11 @@ void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer>
     MetalContext* sharedMetalContext = bd->SharedMetalContext;
     [commandBuffer addCompletedHandler:^(id<MTLCommandBuffer>)
     {
-        dispatch_async(dispatch_get_main_queue(), ^{
-            @synchronized(sharedMetalContext.bufferCache)
-            {
-                [sharedMetalContext.bufferCache addObject:vertexBuffer];
-                [sharedMetalContext.bufferCache addObject:indexBuffer];
-            }
-        });
+        @synchronized(sharedMetalContext.bufferCacheLock)
+        {
+            [sharedMetalContext.bufferCache addObject:vertexBuffer];
+            [sharedMetalContext.bufferCache addObject:indexBuffer];
+        }
     }];
 }
 
@@ -431,6 +401,44 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
     [bd->SharedMetalContext.renderPipelineStateCache removeAllObjects];
 }
 
+bool ImGui_ImplMetal_Init(id<MTLDevice> device)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    ImGui_ImplMetal_Data* bd = IM_NEW(ImGui_ImplMetal_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_metal";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplMetal_DrawCallback_ResetRenderState;
+
+    bd->SharedMetalContext = [[MetalContext alloc] init];
+    bd->SharedMetalContext.device = device;
+
+    return true;
+}
+
+void ImGui_ImplMetal_Shutdown()
+{
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    IM_UNUSED(bd);
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplMetal_DestroyDeviceObjects();
+    ImGui_ImplMetal_DestroyBackendData();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+}
+
 #pragma mark - MetalBuffer implementation
 
 @implementation MetalBuffer
@@ -514,6 +522,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
     {
         self.renderPipelineStateCache = [NSMutableDictionary dictionary];
         self.bufferCache = [NSMutableArray array];
+        self.bufferCacheLock = [[NSObject alloc] init];
         _lastBufferCachePurge = GetMachAbsoluteTimeInSeconds();
     }
     return self;
@@ -521,9 +530,9 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
 
 - (MetalBuffer*)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device
 {
-    uint64_t now = GetMachAbsoluteTimeInSeconds();
+    double now = GetMachAbsoluteTimeInSeconds();
 
-    @synchronized(self.bufferCache)
+    @synchronized(self.bufferCacheLock)
     {
         // Purge old buffers that haven't been useful for a while
         if (now - self.lastBufferCachePurge > 1.0)

backends/imgui_impl_opengl2.cpp

@@ -6,6 +6,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 // Missing features or Issues:
 //  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [ ] Renderer: Use of DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest is emulated by poking to glTexParameter(), as legacy OpenGL doesn't have glBindSampler().
 
 // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -25,6 +26,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: OpenGL: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-03-12: OpenGL: Fixed invalid assert in ImGui_ImplOpenGL3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures. (#8802)
@@ -86,6 +88,9 @@
 // OpenGL data
 struct ImGui_ImplOpenGL2_Data
 {
+    bool        UseTexParameterToSetSampler;
+    GLuint      NextSampler;
+
     ImGui_ImplOpenGL2_Data() { memset((void*)this, 0, sizeof(*this)); }
 };
 
@@ -97,37 +102,6 @@ static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData()
 }
 
 // Functions
-bool    ImGui_ImplOpenGL2_Init()
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-
-    // Setup backend capabilities flags
-    ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_opengl2";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    return true;
-}
-
-void    ImGui_ImplOpenGL2_Shutdown()
-{
-    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplOpenGL2_DestroyDeviceObjects();
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-    IM_DELETE(bd);
-}
-
 void    ImGui_ImplOpenGL2_NewFrame()
 {
     ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
@@ -138,6 +112,7 @@ void    ImGui_ImplOpenGL2_NewFrame()
 static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
 {
     // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     //glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // In order to composite our output buffer we need to preserve alpha
@@ -155,6 +130,7 @@ static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_wid
     glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
     glShadeModel(GL_SMOOTH);
     glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+    bd->NextSampler = GL_LINEAR;
 
     // If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
     // you may need to backup/reset/restore other state, e.g. for current shader using the commented lines below.
@@ -179,12 +155,18 @@ static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_wid
     glLoadIdentity();
 }
 
+// Draw callbacks
+static void ImGui_ImplOpenGL2_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplOpenGL2_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData(); bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_LINEAR; }
+static void ImGui_ImplOpenGL2_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData(); bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_NEAREST; }
+
 // OpenGL2 Render function.
 // Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
 // This is in order to be able to run within an OpenGL engine that doesn't do so.
 void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
 {
     // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
     int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
     int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
     if (fb_width == 0 || fb_height == 0)
@@ -228,8 +210,7 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplOpenGL2_DrawCallback_ResetRenderState)
                     ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -246,7 +227,17 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
                 glScissor((int)clip_min.x, (int)((float)fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
 
                 // Bind texture, Draw
-                glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID());
+                GLuint pcmd_texture = (GLuint)(intptr_t)pcmd->GetTexID();
+                glBindTexture(GL_TEXTURE_2D, pcmd_texture);
+
+                // Emulate sampler change (even though it is technically part of texture data)
+                // As a sort of hack/workaround, we only start writing using glTextParameter() if sampler is ever changed explicitly.
+                if (bd->UseTexParameterToSetSampler)
+                {
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, bd->NextSampler);
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, bd->NextSampler);
+                }
+
                 glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset);
             }
         }
@@ -344,6 +335,42 @@ void    ImGui_ImplOpenGL2_DestroyDeviceObjects()
         }
 }
 
+bool    ImGui_ImplOpenGL2_Init()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_opengl2";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplOpenGL2_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplOpenGL2_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplOpenGL2_DrawCallback_SetSamplerNearest;
+
+    return true;
+}
+
+void    ImGui_ImplOpenGL2_Shutdown()
+{
+    ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplOpenGL2_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
 //-----------------------------------------------------------------------------
 
 #if defined(__clang__)

backends/imgui_impl_opengl2.h

@@ -6,6 +6,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 // Missing features or Issues:
 //  [ ] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
+//  [ ] Renderer: Use of DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest is emulated by poking to glTexParameter(), as legacy OpenGL doesn't have glBindSampler().
 
 // 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_opengl3.cpp

@@ -23,6 +23,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: OpenGL: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-03-12: OpenGL: Fixed invalid assert in ImGui_ImplOpenGL3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-12-11: OpenGL: Fixed embedded loader multiple init/shutdown cycles broken on some platforms. (#8792, #9112)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
@@ -252,6 +253,10 @@ struct ImGui_ImplOpenGL3_Data
     bool            HasBindSampler;
     bool            HasClipOrigin;
     bool            UseBufferSubData;
+    bool            UseTexParameterToSetSampler;
+    GLuint          NextSampler;            // Used if !HasBindSampler && UseTexParameterToSetSampler.
+    GLuint          TexSamplers[2];         // Used if IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER && HasBindSimpler (0=linear, 1=nearest).
+
     ImVector<char>  TempBuffer;
 
     ImGui_ImplOpenGL3_Data() { memset((void*)this, 0, sizeof(*this)); }
@@ -312,139 +317,6 @@ static void ImGui_ImplOpenGL3_ShutdownLoader()
 }
 
 // Functions
-bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-
-    // Initialize loader
-    if (!ImGui_ImplOpenGL3_InitLoader())
-        return false;
-
-    // Setup backend capabilities flags
-    ImGui_ImplOpenGL3_Data* bd = IM_NEW(ImGui_ImplOpenGL3_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_opengl3";
-
-    // Query for GL version (e.g. 320 for GL 3.2)
-    const char* gl_version_str = (const char*)glGetString(GL_VERSION);
-#if defined(IMGUI_IMPL_OPENGL_ES2)
-    // GLES 2
-    bd->GlVersion = 200;
-    bd->GlProfileIsES2 = true;
-    IM_UNUSED(gl_version_str);
-#else
-    // Desktop or GLES 3
-    GLint major = 0;
-    GLint minor = 0;
-    glGetIntegerv(GL_MAJOR_VERSION, &major);
-    glGetIntegerv(GL_MINOR_VERSION, &minor);
-    if (major == 0 && minor == 0)
-        sscanf(gl_version_str, "%d.%d", &major, &minor); // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
-    bd->GlVersion = (GLuint)(major * 100 + minor * 10);
-    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &bd->MaxTextureSize);
-
-#if defined(IMGUI_IMPL_OPENGL_ES3)
-    bd->GlProfileIsES3 = true;
-#else
-    if (strncmp(gl_version_str, "OpenGL ES 3", 11) == 0)
-        bd->GlProfileIsES3 = true;
-#endif
-
-#if defined(GL_CONTEXT_PROFILE_MASK)
-    if (!bd->GlProfileIsES3 && bd->GlVersion >= 320)
-        glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
-    bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
-#endif
-
-    bd->UseBufferSubData = false;
-    /*
-    // Query vendor to enable glBufferSubData kludge
-#ifdef _WIN32
-    if (const char* vendor = (const char*)glGetString(GL_VENDOR))
-        if (strncmp(vendor, "Intel", 5) == 0)
-            bd->UseBufferSubData = true;
-#endif
-    */
-#endif
-
-#ifdef IMGUI_IMPL_OPENGL_DEBUG
-    printf("GlVersion = %d, \"%s\"\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2/IsEs3 = %d/%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
-    if (bd->GlVersion >= 320)
-        io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-#endif
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = (int)bd->MaxTextureSize;
-
-    // Store GLSL version string so we can refer to it later in case we recreate shaders.
-    // Note: GLSL version is NOT the same as GL version. Leave this to nullptr if unsure.
-    if (glsl_version == nullptr)
-    {
-#if defined(IMGUI_IMPL_OPENGL_ES2)
-        glsl_version = "#version 100";
-#elif defined(IMGUI_IMPL_OPENGL_ES3)
-        glsl_version = "#version 300 es";
-#elif defined(__APPLE__)
-        glsl_version = "#version 150";
-#else
-        glsl_version = "#version 130";
-#endif
-    }
-    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_COUNTOF(bd->GlslVersionString));
-    strcpy(bd->GlslVersionString, glsl_version);
-    strcat(bd->GlslVersionString, "\n");
-
-    // Make an arbitrary GL call (we don't actually need the result)
-    // IF YOU GET A CRASH HERE: it probably means the OpenGL function loader didn't do its job. Let us know!
-    GLint current_texture;
-    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
-#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
-    bd->HasBindSampler = (bd->GlVersion >= 330 || bd->GlProfileIsES3);
-#endif
-    bd->HasClipOrigin = (bd->GlVersion >= 450);
-#ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
-    GLint num_extensions = 0;
-    glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
-    for (GLint i = 0; i < num_extensions; i++)
-    {
-        const char* extension = (const char*)glGetStringi(GL_EXTENSIONS, i);
-        if (extension != nullptr && strcmp(extension, "GL_ARB_clip_control") == 0)
-            bd->HasClipOrigin = true;
-    }
-#endif
-
-    return true;
-}
-
-void    ImGui_ImplOpenGL3_Shutdown()
-{
-    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplOpenGL3_DestroyDeviceObjects();
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-    IM_DELETE(bd);
-
-    ImGui_ImplOpenGL3_ShutdownLoader();
-}
-
 void    ImGui_ImplOpenGL3_NewFrame()
 {
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
@@ -511,7 +383,7 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
 
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
     if (bd->HasBindSampler)
-        glBindSampler(0, 0); // We use combined texture/sampler state. Applications using GL 3.3 and GL ES 3.0 may set that otherwise.
+        glBindSampler(0, bd->TexSamplers[0]); // We use combined texture/sampler state. Applications using GL 3.3 and GL ES 3.0 may set that otherwise.
 #endif
 
     (void)vertex_array_object;
@@ -530,6 +402,11 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
     GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, col)));
 }
 
+// Draw callbacks
+static void ImGui_ImplOpenGL3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[0]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_LINEAR; } }
+static void ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData(); if (bd->HasBindSampler) { glBindSampler(0, bd->TexSamplers[1]); } else { bd->UseTexParameterToSetSampler = true; bd->NextSampler = GL_NEAREST; } }
+
 // OpenGL3 Render function.
 // Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
 // This is in order to be able to run within an OpenGL engine that doesn't do so.
@@ -644,8 +521,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplOpenGL3_DrawCallback_ResetRenderState)
                     ImGui_ImplOpenGL3_SetupRenderState(draw_data, fb_width, fb_height, vertex_array_object);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -663,6 +539,15 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
 
                 // Bind texture, Draw
                 GL_CALL(glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID()));
+
+                // Emulate sampler change (even though it is technically part of texture data)
+                // As a sort of hack/workaround, we only start writing using glTextParameter() if sampler is ever changed explicitly.
+                if (!bd->HasBindSampler && bd->UseTexParameterToSetSampler)
+                {
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, bd->NextSampler);
+                    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, bd->NextSampler);
+                }
+
 #ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
                 if (bd->GlVersion >= 320)
                     GL_CALL(glDrawElementsBaseVertex(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx)), (GLint)pcmd->VtxOffset));
@@ -1028,6 +913,20 @@ bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
     glGenBuffers(1, &bd->VboHandle);
     glGenBuffers(1, &bd->ElementsHandle);
 
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    if (bd->HasBindSampler)
+    {
+        glGenSamplers(2, &bd->TexSamplers[0]);
+        for (int sampler_n = 0; sampler_n < 2; sampler_n++)
+        {
+            GL_CALL(glSamplerParameteri(bd->TexSamplers[sampler_n], GL_TEXTURE_MIN_FILTER, (sampler_n == 0) ? GL_LINEAR : GL_NEAREST));
+            GL_CALL(glSamplerParameteri(bd->TexSamplers[sampler_n], GL_TEXTURE_MAG_FILTER, (sampler_n == 0) ? GL_LINEAR : GL_NEAREST));
+            GL_CALL(glSamplerParameteri(bd->TexSamplers[sampler_n], GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+            GL_CALL(glSamplerParameteri(bd->TexSamplers[sampler_n], GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+        }
+    }
+#endif
+
     // Restore modified GL state
     glBindTexture(GL_TEXTURE_2D, last_texture);
     glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
@@ -1045,6 +944,7 @@ void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
 {
     ImGui_ImplOpenGL3_InitLoader();
     ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    if (bd->TexSamplers[0]) { glDeleteSamplers(2, &bd->TexSamplers[0]); bd->TexSamplers[0] = bd->TexSamplers[1] = 0; }
     if (bd->VboHandle)      { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
     if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }
     if (bd->ShaderHandle)   { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }
@@ -1055,6 +955,142 @@ void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
             ImGui_ImplOpenGL3_DestroyTexture(tex);
 }
 
+bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Initialize loader
+    if (!ImGui_ImplOpenGL3_InitLoader())
+        return false;
+
+    // Setup backend capabilities flags
+    ImGui_ImplOpenGL3_Data* bd = IM_NEW(ImGui_ImplOpenGL3_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_opengl3";
+
+    // Query for GL version (e.g. 320 for GL 3.2)
+    const char* gl_version_str = (const char*)glGetString(GL_VERSION);
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+    // GLES 2
+    bd->GlVersion = 200;
+    bd->GlProfileIsES2 = true;
+    IM_UNUSED(gl_version_str);
+#else
+    // Desktop or GLES 3
+    GLint major = 0;
+    GLint minor = 0;
+    glGetIntegerv(GL_MAJOR_VERSION, &major);
+    glGetIntegerv(GL_MINOR_VERSION, &minor);
+    if (major == 0 && minor == 0)
+        sscanf(gl_version_str, "%d.%d", &major, &minor); // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
+    bd->GlVersion = (GLuint)(major * 100 + minor * 10);
+    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &bd->MaxTextureSize);
+
+#if defined(IMGUI_IMPL_OPENGL_ES3)
+    bd->GlProfileIsES3 = true;
+#else
+    if (strncmp(gl_version_str, "OpenGL ES 3", 11) == 0)
+        bd->GlProfileIsES3 = true;
+#endif
+
+#if defined(GL_CONTEXT_PROFILE_MASK)
+    if (!bd->GlProfileIsES3 && bd->GlVersion >= 320)
+        glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
+    bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
+#endif
+
+    bd->UseBufferSubData = false;
+    /*
+    // Query vendor to enable glBufferSubData kludge
+#ifdef _WIN32
+    if (const char* vendor = (const char*)glGetString(GL_VENDOR))
+        if (strncmp(vendor, "Intel", 5) == 0)
+            bd->UseBufferSubData = true;
+#endif
+    */
+#endif
+
+#ifdef IMGUI_IMPL_OPENGL_DEBUG
+    printf("GlVersion = %d, \"%s\"\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2/IsEs3 = %d/%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
+    if (bd->GlVersion >= 320)
+        io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+#endif
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = (int)bd->MaxTextureSize;
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplOpenGL3_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplOpenGL3_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplOpenGL3_DrawCallback_SetSamplerNearest;
+
+    // Store GLSL version string so we can refer to it later in case we recreate shaders.
+    // Note: GLSL version is NOT the same as GL version. Leave this to nullptr if unsure.
+    if (glsl_version == nullptr)
+    {
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+        glsl_version = "#version 100";
+#elif defined(IMGUI_IMPL_OPENGL_ES3)
+        glsl_version = "#version 300 es";
+#elif defined(__APPLE__)
+        glsl_version = "#version 150";
+#else
+        glsl_version = "#version 130";
+#endif
+    }
+    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_COUNTOF(bd->GlslVersionString));
+    strcpy(bd->GlslVersionString, glsl_version);
+    strcat(bd->GlslVersionString, "\n");
+
+    // Make an arbitrary GL call (we don't actually need the result)
+    // IF YOU GET A CRASH HERE: it probably means the OpenGL function loader didn't do its job. Let us know!
+    GLint current_texture;
+    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
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    bd->HasBindSampler = (bd->GlVersion >= 330 || bd->GlProfileIsES3);
+#endif
+    bd->HasClipOrigin = (bd->GlVersion >= 450);
+#ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
+    GLint num_extensions = 0;
+    glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
+    for (GLint i = 0; i < num_extensions; i++)
+    {
+        const char* extension = (const char*)glGetStringi(GL_EXTENSIONS, i);
+        if (extension != nullptr && strcmp(extension, "GL_ARB_clip_control") == 0)
+            bd->HasClipOrigin = true;
+    }
+#endif
+
+    return true;
+}
+
+void    ImGui_ImplOpenGL3_Shutdown()
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplOpenGL3_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+
+    ImGui_ImplOpenGL3_ShutdownLoader();
+}
+
 //-----------------------------------------------------------------------------
 
 #if defined(__GNUC__)

backends/imgui_impl_sdl2.cpp

@@ -21,6 +21,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-16: Made ImGui_ImplSDL2_GetContentScaleForWindow(), ImGui_ImplSDL2_GetContentScaleForDisplay() helpers return a minimum of 1.0f, as some Linux setup seems to report <1.0f value and this breaks scaling border size. (#9369)
 //  2026-02-13: Inputs: systems other than X11 are back to starting mouse capture on mouse down (reverts 2025-02-26 change). Only X11 requires waiting for a drag by default (not ideal, but a better default for X11 users). Added ImGui_ImplSDL2_SetMouseCaptureMode() for X11 debugger users. (#3650, #6410, #9235)
 //  2026-01-15: Changed GetClipboardText() handler to return nullptr on error aka clipboard contents is not text. Consistent with other backends. (#9168)
 //  2025-09-24: Skip using the SDL_GetGlobalMouseState() state when one of our window is hovered, as the SDL_MOUSEMOTION data is reliable. Fix macOS notch mouse coordinates issue in fullscreen mode + better perf on X11. (#7919, #7786)
@@ -748,6 +749,7 @@ float ImGui_ImplSDL2_GetContentScaleForWindow(SDL_Window* window)
     return ImGui_ImplSDL2_GetContentScaleForDisplay(SDL_GetWindowDisplayIndex(window));
 }
 
+// SDL_GetDisplayDPI() seems rather unreliable on Linux.
 float ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index)
 {
     const char* sdl_driver = SDL_GetCurrentVideoDriver();
@@ -757,7 +759,11 @@ float ImGui_ImplSDL2_GetContentScaleForDisplay(int display_index)
 #if !defined(__APPLE__) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__)
     float dpi = 0.0f;
     if (SDL_GetDisplayDPI(display_index, &dpi, nullptr, nullptr) == 0)
+    {
+        if (dpi < 96.0f)
+            dpi = 96.0f;
         return dpi / 96.0f;
+    }
 #endif
 #endif
     IM_UNUSED(display_index);
@@ -884,7 +890,7 @@ static void ImGui_ImplSDL2_GetWindowSizeAndFramebufferScale(SDL_Window* window,
     if (out_size != nullptr)
         *out_size = ImVec2((float)w, (float)h);
     if (out_framebuffer_scale != nullptr)
-        *out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / w, (float)display_h / h) : ImVec2(1.0f, 1.0f);
+        *out_framebuffer_scale = (w > 0 && h > 0) ? ImVec2((float)display_w / (float)w, (float)display_h / (float)h) : ImVec2(1.0f, 1.0f);
 }
 
 void ImGui_ImplSDL2_NewFrame()
@@ -902,7 +908,7 @@ void ImGui_ImplSDL2_NewFrame()
     Uint64 current_time = SDL_GetPerformanceCounter();
     if (current_time <= bd->Time)
         current_time = bd->Time + 1;
-    io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
+    io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / (double)frequency) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
     if (bd->MouseLastLeaveFrame && bd->MouseLastLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)

backends/imgui_impl_sdl3.cpp

@@ -686,8 +686,8 @@ static void ImGui_ImplSDL3_UpdateMouseData()
             int window_x, window_y;
             SDL_GetGlobalMouseState(&mouse_x, &mouse_y);
             SDL_GetWindowPosition(focused_window, &window_x, &window_y);
-            mouse_x -= window_x;
-            mouse_y -= window_y;
+            mouse_x -= (float)window_x;
+            mouse_y -= (float)window_y;
             io.AddMousePosEvent(mouse_x, mouse_y);
         }
     }
@@ -860,7 +860,7 @@ void ImGui_ImplSDL3_NewFrame()
     Uint64 current_time = SDL_GetPerformanceCounter();
     if (current_time <= bd->Time)
         current_time = bd->Time + 1;
-    io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
+    io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / (double)frequency) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
     if (bd->MousePendingLeaveFrame && bd->MousePendingLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)

backends/imgui_impl_sdlgpu3.cpp

@@ -22,6 +22,7 @@
 //   Calling the function is MANDATORY, otherwise the ImGui will not upload neither the vertex nor the index buffer for the GPU. See imgui_impl_sdlgpu3.cpp for more info.
 
 // CHANGELOG
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. Obsoleting samplers from ImGui_ImplSDLGPU3_RenderState. (#9378)
 //  2026-03-19: Fixed issue in ImGui_ImplSDLGPU3_DestroyTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295, #9310)
 //  2026-02-25: Removed unnecessary call to SDL_WaitForGPUIdle when releasing vertex/index buffers. (#9262)
 //  2025-11-26: macOS version can use MSL shaders in order to support macOS 10.14+ (vs Metallib shaders requiring macOS 14+). Requires calling SDL_CreateGPUDevice() with SDL_GPU_SHADERFORMAT_MSL.
@@ -59,6 +60,10 @@ struct ImGui_ImplSDLGPU3_Data
 {
     ImGui_ImplSDLGPU3_InitInfo   InitInfo;
 
+    // Render state
+    ImGui_ImplSDLGPU3_RenderState*  RenderState         = nullptr; // == ImGui::GetPlatformIO().Renderer_RenderState during rendering.
+    SDL_GPUSampler*                 CurrentSampler      = nullptr;
+
     // Graphics pipeline & shaders
     SDL_GPUShader*               VertexShader           = nullptr;
     SDL_GPUShader*               FragmentShader         = nullptr;
@@ -87,10 +92,10 @@ static ImGui_ImplSDLGPU3_Data* ImGui_ImplSDLGPU3_GetBackendData()
     return ImGui::GetCurrentContext() ? (ImGui_ImplSDLGPU3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
 }
 
-static void ImGui_ImplSDLGPU3_SetupRenderState(ImDrawData* draw_data, ImGui_ImplSDLGPU3_RenderState* render_state, SDL_GPUGraphicsPipeline* pipeline, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, ImGui_ImplSDLGPU3_FrameData* fd, uint32_t fb_width, uint32_t fb_height)
+static void ImGui_ImplSDLGPU3_SetupRenderState(ImDrawData* draw_data, SDL_GPUGraphicsPipeline* pipeline, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, ImGui_ImplSDLGPU3_FrameData* fd, uint32_t fb_width, uint32_t fb_height)
 {
     ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData();
-    render_state->SamplerCurrent = bd->TexSamplerLinear;
+    bd->CurrentSampler = bd->TexSamplerLinear;
 
     // Bind graphics pipeline
     SDL_BindGPUGraphicsPipeline(render_pass, pipeline);
@@ -174,8 +179,8 @@ void ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuff
     ImGui_ImplSDLGPU3_InitInfo* v = &bd->InitInfo;
     ImGui_ImplSDLGPU3_FrameData* fd = &bd->MainWindowFrameData;
 
-    uint32_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
-    uint32_t index_size  = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
+    uint32_t vertex_size = (uint32_t)draw_data->TotalVtxCount * sizeof(ImDrawVert);
+    uint32_t index_size  = (uint32_t)draw_data->TotalIdxCount * sizeof(ImDrawIdx);
     if (fd->VertexBuffer == nullptr || fd->VertexBufferSize < vertex_size)
         CreateOrResizeBuffers(&fd->VertexBuffer, &fd->VertexTransferBuffer, &fd->VertexBufferSize, vertex_size, SDL_GPU_BUFFERUSAGE_VERTEX);
     if (fd->IndexBuffer == nullptr || fd->IndexBufferSize < index_size)
@@ -216,6 +221,11 @@ void ImGui_ImplSDLGPU3_PrepareDrawData(ImDrawData* draw_data, SDL_GPUCommandBuff
     SDL_EndGPUCopyPass(copy_pass);
 }
 
+// Draw callbacks
+static void ImGui_ImplSDLGPU3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)    {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplSDLGPU3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData(); bd->CurrentSampler = bd->TexSamplerLinear; }
+static void ImGui_ImplSDLGPU3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplSDLGPU3_Data* bd = ImGui_ImplSDLGPU3_GetBackendData(); bd->CurrentSampler = bd->TexSamplerNearest; }
+
 void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffer* command_buffer, SDL_GPURenderPass* render_pass, SDL_GPUGraphicsPipeline* pipeline)
 {
     // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
@@ -238,11 +248,9 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ImGui_ImplSDLGPU3_RenderState render_state;
     render_state.Device = bd->InitInfo.Device;
-    render_state.SamplerLinear = render_state.SamplerCurrent = bd->TexSamplerLinear;
-    render_state.SamplerNearest = bd->TexSamplerNearest;
-    platform_io.Renderer_RenderState = &render_state;
+    platform_io.Renderer_RenderState = bd->RenderState = &render_state;
 
-    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
+    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
@@ -256,9 +264,8 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
-                    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, &render_state, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
+                if (pcmd->UserCallback == ImGui_ImplSDLGPU3_DrawCallback_ResetRenderState)
+                    ImGui_ImplSDLGPU3_SetupRenderState(draw_data, pipeline, command_buffer, render_pass, fd, fb_width, fb_height);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
             }
@@ -271,8 +278,8 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
                 // Clamp to viewport as SDL_SetGPUScissor() won't accept values that are off bounds
                 if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
                 if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
-                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
-                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -287,7 +294,7 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
                 // Bind DescriptorSet with font or user texture
                 SDL_GPUTextureSamplerBinding texture_sampler_binding;
                 texture_sampler_binding.texture = (SDL_GPUTexture*)(intptr_t)pcmd->GetTexID();
-                texture_sampler_binding.sampler = render_state.SamplerCurrent;
+                texture_sampler_binding.sampler = bd->CurrentSampler;
                 SDL_BindGPUFragmentSamplers(render_pass, 0, &texture_sampler_binding, 1);
 
                 // Draw
@@ -306,6 +313,8 @@ void ImGui_ImplSDLGPU3_RenderDrawData(ImDrawData* draw_data, SDL_GPUCommandBuffe
     // We perform a call to SDL_SetGPUScissor() to set back a full viewport which is likely to fix things for 99% users but technically this is not perfect. (See github #4644)
     SDL_Rect scissor_rect { 0, 0, fb_width, fb_height };
     SDL_SetGPUScissor(render_pass, &scissor_rect);
+
+    platform_io.Renderer_RenderState = bd->RenderState = nullptr;
 }
 
 static void ImGui_ImplSDLGPU3_DestroyTexture(ImTextureData* tex)
@@ -656,6 +665,11 @@ bool ImGui_ImplSDLGPU3_Init(ImGui_ImplSDLGPU3_InitInfo* info)
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplSDLGPU3_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplSDLGPU3_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplSDLGPU3_DrawCallback_SetSamplerNearest;
+
     IM_ASSERT(info->Device != nullptr);
     IM_ASSERT(info->ColorTargetFormat != SDL_GPU_TEXTUREFORMAT_INVALID);
 

backends/imgui_impl_sdlgpu3.h

@@ -57,9 +57,6 @@ IMGUI_IMPL_API void     ImGui_ImplSDLGPU3_UpdateTexture(ImTextureData* tex);
 struct ImGui_ImplSDLGPU3_RenderState
 {
     SDL_GPUDevice*      Device;
-    SDL_GPUSampler*     SamplerLinear;      // Bilinear filtering sampler
-    SDL_GPUSampler*     SamplerNearest;     // Nearest/point filtering sampler
-    SDL_GPUSampler*     SamplerCurrent;     // Current sampler (may be changed by callback)
 };
 
 #endif // #ifndef IMGUI_DISABLE

backends/imgui_impl_sdlrenderer2.cpp

@@ -14,8 +14,10 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features or Issues:
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
 
-// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
 // Learn about Dear ImGui:
 // - FAQ                  https://dearimgui.com/faq
@@ -24,6 +26,8 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState (others cannot be supported). (#9378)
 //  2026-03-12: Fixed invalid assert in ImGui_ImplSDLRenderer2_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer2_CreateFontsTexture() and ImGui_ImplSDLRenderer2_DestroyFontsTexture().
@@ -72,41 +76,6 @@ static ImGui_ImplSDLRenderer2_Data* ImGui_ImplSDLRenderer2_GetBackendData()
 }
 
 // Functions
-bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
-
-    // Setup backend capabilities flags
-    ImGui_ImplSDLRenderer2_Data* bd = IM_NEW(ImGui_ImplSDLRenderer2_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_sdlrenderer2";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    bd->Renderer = renderer;
-
-    return true;
-}
-
-void ImGui_ImplSDLRenderer2_Shutdown()
-{
-    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-    IM_DELETE(bd);
-}
-
 static void ImGui_ImplSDLRenderer2_SetupRenderState(SDL_Renderer* renderer)
 {
     // Clear out any viewports and cliprect set by the user
@@ -122,6 +91,9 @@ void ImGui_ImplSDLRenderer2_NewFrame()
     IM_UNUSED(bd);
 }
 
+// Draw callbacks
+static void ImGui_ImplSDLRenderer2_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*) {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+
 void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
 {
     // If there's a scale factor set by the user, use that instead
@@ -184,8 +156,7 @@ void ImGui_ImplSDLRenderer2_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
             if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplSDLRenderer2_DrawCallback_ResetRenderState)
                     ImGui_ImplSDLRenderer2_SetupRenderState(renderer);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -293,6 +264,44 @@ void ImGui_ImplSDLRenderer2_DestroyDeviceObjects()
         }
 }
 
+bool ImGui_ImplSDLRenderer2_Init(SDL_Renderer* renderer)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplSDLRenderer2_Data* bd = IM_NEW(ImGui_ImplSDLRenderer2_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_sdlrenderer2";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplSDLRenderer2_DrawCallback_ResetRenderState;
+
+    bd->Renderer = renderer;
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer2_Shutdown()
+{
+    ImGui_ImplSDLRenderer2_Data* bd = ImGui_ImplSDLRenderer2_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplSDLRenderer2_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
 //-----------------------------------------------------------------------------
 
 #if defined(__clang__)

backends/imgui_impl_sdlrenderer2.h

@@ -14,6 +14,8 @@
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
+// Missing features or Issues:
+//  [ ] Renderer: Missing support for DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest callbacks: SDLRenderer2 does not support changing SDL_SCALE_MODE while rendering.
 
 // 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_sdlrenderer3.cpp

@@ -15,7 +15,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 
-// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
 // Learn about Dear ImGui:
 // - FAQ                  https://dearimgui.com/faq
@@ -24,6 +24,8 @@
 // - Introduction, links and more at the top of imgui.cpp
 
 // CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-03-12: Fixed invalid assert in ImGui_ImplSDLRenderer3_UpdateTexture() if ImTextureID_Invalid is defined to be != 0, which became the default since 2026-03-12. (#9295)
 //  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
 //  2025-06-11: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplSDLRenderer3_CreateFontsTexture() and ImGui_ImplSDLRenderer3_DestroyFontsTexture().
@@ -59,6 +61,9 @@ struct ImGui_ImplSDLRenderer3_Data
     SDL_Renderer*           Renderer;       // Main viewport's renderer
     ImVector<SDL_FColor>    ColorBuffer;
 
+    // Render State
+    SDL_ScaleMode           CurrentScaleMode;
+
     ImGui_ImplSDLRenderer3_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
 
@@ -70,41 +75,6 @@ static ImGui_ImplSDLRenderer3_Data* ImGui_ImplSDLRenderer3_GetBackendData()
 }
 
 // Functions
-bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    IMGUI_CHECKVERSION();
-    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
-    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
-
-    // Setup backend capabilities flags
-    ImGui_ImplSDLRenderer3_Data* bd = IM_NEW(ImGui_ImplSDLRenderer3_Data)();
-    io.BackendRendererUserData = (void*)bd;
-    io.BackendRendererName = "imgui_impl_sdlrenderer3";
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
-
-    bd->Renderer = renderer;
-
-    return true;
-}
-
-void ImGui_ImplSDLRenderer3_Shutdown()
-{
-    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
-    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
-    ImGuiIO& io = ImGui::GetIO();
-    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
-
-    ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
-
-    io.BackendRendererName = nullptr;
-    io.BackendRendererUserData = nullptr;
-    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
-    platform_io.ClearRendererHandlers();
-    IM_DELETE(bd);
-}
-
 static void ImGui_ImplSDLRenderer3_SetupRenderState(SDL_Renderer* renderer)
 {
     // Clear out any viewports and cliprect set by the user
@@ -138,6 +108,11 @@ static int SDL_RenderGeometryRaw8BitColor(SDL_Renderer* renderer, ImVector<SDL_F
     return SDL_RenderGeometryRaw(renderer, texture, xy, xy_stride, color3, sizeof(*color3), uv, uv_stride, num_vertices, indices, num_indices, size_indices);
 }
 
+// Draw callbacks
+static void ImGui_ImplSDLRenderer3_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)   {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplSDLRenderer3_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData(); bd->CurrentScaleMode = SDL_SCALEMODE_LINEAR; }
+static void ImGui_ImplSDLRenderer3_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)  { ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData(); bd->CurrentScaleMode = SDL_SCALEMODE_NEAREST; }
+
 void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer* renderer)
 {
     ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
@@ -204,8 +179,7 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
             if (pcmd->UserCallback)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplSDLRenderer3_DrawCallback_ResetRenderState)
                     ImGui_ImplSDLRenderer3_SetupRenderState(renderer);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -231,6 +205,7 @@ void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data, SDL_Renderer*
 
                 // Bind texture, Draw
                 SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
+                SDL_SetTextureScaleMode(tex, bd->CurrentScaleMode);
                 SDL_RenderGeometryRaw8BitColor(renderer, bd->ColorBuffer, tex,
                     xy, (int)sizeof(ImDrawVert),
                     color, (int)sizeof(ImDrawVert),
@@ -309,6 +284,46 @@ void ImGui_ImplSDLRenderer3_DestroyDeviceObjects()
         }
 }
 
+bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+    IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
+
+    // Setup backend capabilities flags
+    ImGui_ImplSDLRenderer3_Data* bd = IM_NEW(ImGui_ImplSDLRenderer3_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_sdlrenderer3";
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplSDLRenderer3_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplSDLRenderer3_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplSDLRenderer3_DrawCallback_SetSamplerNearest;
+
+    bd->Renderer = renderer;
+
+    return true;
+}
+
+void ImGui_ImplSDLRenderer3_Shutdown()
+{
+    ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+}
+
 //-----------------------------------------------------------------------------
 
 #if defined(__clang__)

backends/imgui_impl_sdlrenderer3.h

@@ -15,7 +15,7 @@
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
 
-// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
 // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
 // Learn about Dear ImGui:
 // - FAQ                  https://dearimgui.com/faq

backends/imgui_impl_vulkan.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [!] Renderer: User texture binding. Use 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
+//  [!] Renderer: User texture binding. Use a VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
@@ -27,6 +27,16 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
+//  2026-04-22: *BREAKING CHANGE* redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. This change allows us to facilitate changing samplers, in line with other backends.
+//              - When registering custom textures: changed ImGui_ImplVulkan_AddTexture() signature to remove Sampler.
+//                - Before: ImGui_ImplVulkan_AddTexture(VkSampler, VkImageView, VkImageLayout)
+//                - After:  ImGui_ImplVulkan_AddTexture(VkImageView, VkImageLayout)
+//                - Kept inline redirection function that ignores the sampler.
+//              - When creating your own descriptor pool (instead of letting backend creates its own):
+//                - Before: need at least IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER.
+//                - After:  need at least IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE.
+//                                      + IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE       descriptors of type VK_DESCRIPTOR_TYPE_SAMPLER.
 //  2026-03-11: Vulkan: Added ImGui_ImplVulkan_PipelineInfo::ExtraDynamicStates[] to allow specifying extra dynamic states to add when creating the VkPipeline. (#9211)
 //  2025-09-26: [Helpers] *BREAKING CHANGE*: Vulkan: Helper ImGui_ImplVulkanH_DestroyWindow() does not call vkDestroySurfaceKHR(): as surface is created by caller of ImGui_ImplVulkanH_CreateOrResizeWindow(), it is more consistent that we don't destroy it. (#9163)
 //  2026-01-05: [Helpers] *BREAKING CHANGE*: Vulkan: Helper for creating render pass uses ImGui_ImplVulkanH_Window::AttachmentDesc to create render pass. Removed ClearEnabled. (#9152)
@@ -266,10 +276,12 @@ struct ImGui_ImplVulkan_Texture
 struct ImGui_ImplVulkan_Data
 {
     ImGui_ImplVulkan_InitInfo   VulkanInitInfo;
+    ImGui_ImplVulkan_RenderState* RenderState;          // == ImGui::GetPlatformIO().Renderer_RenderState during rendering.
     VkDeviceSize                BufferMemoryAlignment;
     VkDeviceSize                NonCoherentAtomSize;
     VkPipelineCreateFlags       PipelineCreateFlags;
-    VkDescriptorSetLayout       DescriptorSetLayout;
+    VkDescriptorSetLayout       DescriptorSetLayoutTexture;
+    VkDescriptorSetLayout       DescriptorSetLayoutSampler;
     VkPipelineLayout            PipelineLayout;
     VkPipeline                  Pipeline;               // pipeline for main render pass (created by app)
     VkShaderModule              ShaderModuleVert;
@@ -278,7 +290,10 @@ struct ImGui_ImplVulkan_Data
     ImVector<VkFormat>          PipelineRenderingCreateInfoColorAttachmentFormats; // Deep copy of format array
 
     // Texture management
-    VkSampler                   TexSamplerLinear;
+    VkSampler                   SamplerLinear;
+    VkSampler                   SamplerNearest;
+    VkDescriptorSet             SamplerLinearDS;
+    VkDescriptorSet             SamplerNearestDS;
     VkCommandPool               TexCommandPool;
     VkCommandBuffer             TexCommandBuffer;
 
@@ -318,7 +333,7 @@ void main()
 */
 static uint32_t __glsl_shader_vert_spv[] =
 {
-    0x07230203,0x00010000,0x00080001,0x0000002e,0x00000000,0x00020011,0x00000001,0x0006000b,
+    0x07230203,0x00010000,0x0008000b,0x0000002e,0x00000000,0x00020011,0x00000001,0x0006000b,
     0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
     0x000a000f,0x00000000,0x00000004,0x6e69616d,0x00000000,0x0000000b,0x0000000f,0x00000015,
     0x0000001b,0x0000001c,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
@@ -331,10 +346,10 @@ static uint32_t __glsl_shader_vert_spv[] =
     0x00050006,0x0000001e,0x00000000,0x61635375,0x0000656c,0x00060006,0x0000001e,0x00000001,
     0x61725475,0x616c736e,0x00006574,0x00030005,0x00000020,0x00006370,0x00040047,0x0000000b,
     0x0000001e,0x00000000,0x00040047,0x0000000f,0x0000001e,0x00000002,0x00040047,0x00000015,
-    0x0000001e,0x00000001,0x00050048,0x00000019,0x00000000,0x0000000b,0x00000000,0x00030047,
-    0x00000019,0x00000002,0x00040047,0x0000001c,0x0000001e,0x00000000,0x00050048,0x0000001e,
-    0x00000000,0x00000023,0x00000000,0x00050048,0x0000001e,0x00000001,0x00000023,0x00000008,
-    0x00030047,0x0000001e,0x00000002,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,
+    0x0000001e,0x00000001,0x00030047,0x00000019,0x00000002,0x00050048,0x00000019,0x00000000,
+    0x0000000b,0x00000000,0x00040047,0x0000001c,0x0000001e,0x00000000,0x00030047,0x0000001e,
+    0x00000002,0x00050048,0x0000001e,0x00000000,0x00000023,0x00000000,0x00050048,0x0000001e,
+    0x00000001,0x00000023,0x00000008,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,
     0x00030016,0x00000006,0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040017,
     0x00000008,0x00000006,0x00000002,0x0004001e,0x00000009,0x00000007,0x00000008,0x00040020,
     0x0000000a,0x00000003,0x00000009,0x0004003b,0x0000000a,0x0000000b,0x00000003,0x00040015,
@@ -366,39 +381,44 @@ static uint32_t __glsl_shader_vert_spv[] =
 /*
 #version 450 core
 layout(location = 0) out vec4 fColor;
-layout(set=0, binding=0) uniform sampler2D sTexture;
+layout(set=0, binding=0) uniform texture2D _Texture;
+layout(set=1, binding=0) uniform sampler _Sampler;
 layout(location = 0) in struct { vec4 Color; vec2 UV; } In;
 void main()
 {
-    fColor = In.Color * texture(sTexture, In.UV.st);
+    fColor = In.Color * texture(sampler2D(_Texture, _Sampler), In.UV.st);
 }
 */
 static uint32_t __glsl_shader_frag_spv[] =
 {
-    0x07230203,0x00010000,0x00080001,0x0000001e,0x00000000,0x00020011,0x00000001,0x0006000b,
+    0x07230203,0x00010000,0x0008000b,0x00000023,0x00000000,0x00020011,0x00000001,0x0006000b,
     0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
     0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010,
     0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
     0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000,
     0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001,
-    0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000016,0x78655473,0x65727574,
-    0x00000000,0x00040047,0x00000009,0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e,
-    0x00000000,0x00040047,0x00000016,0x00000022,0x00000000,0x00040047,0x00000016,0x00000021,
-    0x00000000,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,
-    0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040020,0x00000008,0x00000003,
-    0x00000007,0x0004003b,0x00000008,0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006,
-    0x00000002,0x0004001e,0x0000000b,0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001,
-    0x0000000b,0x0004003b,0x0000000c,0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020,
-    0x00000001,0x0004002b,0x0000000e,0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001,
-    0x00000007,0x00090019,0x00000013,0x00000006,0x00000001,0x00000000,0x00000000,0x00000000,
-    0x00000001,0x00000000,0x0003001b,0x00000014,0x00000013,0x00040020,0x00000015,0x00000000,
-    0x00000014,0x0004003b,0x00000015,0x00000016,0x00000000,0x0004002b,0x0000000e,0x00000018,
-    0x00000001,0x00040020,0x00000019,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004,
-    0x00000000,0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d,
-    0x0000000f,0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000014,0x00000017,
-    0x00000016,0x00050041,0x00000019,0x0000001a,0x0000000d,0x00000018,0x0004003d,0x0000000a,
-    0x0000001b,0x0000001a,0x00050057,0x00000007,0x0000001c,0x00000017,0x0000001b,0x00050085,
-    0x00000007,0x0000001d,0x00000012,0x0000001c,0x0003003e,0x00000009,0x0000001d,0x000100fd,
+    0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000015,0x7865545f,0x65727574,
+    0x00000000,0x00050005,0x00000019,0x6d61535f,0x72656c70,0x00000000,0x00040047,0x00000009,
+    0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e,0x00000000,0x00040047,0x00000015,
+    0x00000021,0x00000000,0x00040047,0x00000015,0x00000022,0x00000000,0x00040047,0x00000019,
+    0x00000021,0x00000000,0x00040047,0x00000019,0x00000022,0x00000001,0x00020013,0x00000002,
+    0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,0x00000020,0x00040017,0x00000007,
+    0x00000006,0x00000004,0x00040020,0x00000008,0x00000003,0x00000007,0x0004003b,0x00000008,
+    0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006,0x00000002,0x0004001e,0x0000000b,
+    0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001,0x0000000b,0x0004003b,0x0000000c,
+    0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020,0x00000001,0x0004002b,0x0000000e,
+    0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001,0x00000007,0x00090019,0x00000013,
+    0x00000006,0x00000001,0x00000000,0x00000000,0x00000000,0x00000001,0x00000000,0x00040020,
+    0x00000014,0x00000000,0x00000013,0x0004003b,0x00000014,0x00000015,0x00000000,0x0002001a,
+    0x00000017,0x00040020,0x00000018,0x00000000,0x00000017,0x0004003b,0x00000018,0x00000019,
+    0x00000000,0x0003001b,0x0000001b,0x00000013,0x0004002b,0x0000000e,0x0000001d,0x00000001,
+    0x00040020,0x0000001e,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004,0x00000000,
+    0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d,0x0000000f,
+    0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000013,0x00000016,0x00000015,
+    0x0004003d,0x00000017,0x0000001a,0x00000019,0x00050056,0x0000001b,0x0000001c,0x00000016,
+    0x0000001a,0x00050041,0x0000001e,0x0000001f,0x0000000d,0x0000001d,0x0004003d,0x0000000a,
+    0x00000020,0x0000001f,0x00050057,0x00000007,0x00000021,0x0000001c,0x00000020,0x00050085,
+    0x00000007,0x00000022,0x00000012,0x00000021,0x0003003e,0x00000009,0x00000022,0x000100fd,
     0x00010038
 };
 
@@ -481,9 +501,7 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
     ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
 
     // Bind pipeline:
-    {
-        vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
-    }
+    vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
 
     // Bind Vertex And Index Buffer:
     if (draw_data->TotalVtxCount > 0)
@@ -495,29 +513,33 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
     }
 
     // Setup viewport:
-    {
-        VkViewport viewport;
-        viewport.x = 0;
-        viewport.y = 0;
-        viewport.width = (float)fb_width;
-        viewport.height = (float)fb_height;
-        viewport.minDepth = 0.0f;
-        viewport.maxDepth = 1.0f;
-        vkCmdSetViewport(command_buffer, 0, 1, &viewport);
-    }
+    VkViewport viewport;
+    viewport.x = 0;
+    viewport.y = 0;
+    viewport.width = (float)fb_width;
+    viewport.height = (float)fb_height;
+    viewport.minDepth = 0.0f;
+    viewport.maxDepth = 1.0f;
+    vkCmdSetViewport(command_buffer, 0, 1, &viewport);
 
     // Setup scale and translation:
     // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
-    {
-        float constants[4];
-        constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
-        constants[1] = 2.0f / draw_data->DisplaySize.y;
-        constants[2] = -1.0f - draw_data->DisplayPos.x * constants[0]; // Translate
-        constants[3] = -1.0f - draw_data->DisplayPos.y * constants[1];
-        vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 4, constants);
-    }
+    float constants[4];
+    constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
+    constants[1] = 2.0f / draw_data->DisplaySize.y;
+    constants[2] = -1.0f - draw_data->DisplayPos.x * constants[0]; // Translate
+    constants[3] = -1.0f - draw_data->DisplayPos.y * constants[1];
+    vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 4, constants);
+
+    // Setup sampler
+    vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerLinearDS, 0, nullptr);
 }
 
+// Draw callbacks
+static void ImGui_ImplVulkan_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)     {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplVulkan_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)     { ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerLinearDS, 0, nullptr); }
+static void ImGui_ImplVulkan_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)    { ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); vkCmdBindDescriptorSets(bd->RenderState->CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 1, 1, &bd->SamplerNearestDS, 0, nullptr); }
+
 // Render function
 void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline)
 {
@@ -589,16 +611,16 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
         vkUnmapMemory(v->Device, rb->IndexBufferMemory);
     }
 
-    // Setup desired Vulkan state
-    ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height);
-
     // Setup render state structure (for callbacks and custom texture bindings)
     ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
     ImGui_ImplVulkan_RenderState render_state;
     render_state.CommandBuffer = command_buffer;
     render_state.Pipeline = pipeline;
     render_state.PipelineLayout = bd->PipelineLayout;
-    platform_io.Renderer_RenderState = &render_state;
+    platform_io.Renderer_RenderState = bd->RenderState = &render_state;
+
+    // Setup desired Vulkan state
+    ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height);
 
     // Will project scissor/clipping rectangles into framebuffer space
     ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
@@ -606,7 +628,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
-    VkDescriptorSet last_desc_set = VK_NULL_HANDLE;
+    VkDescriptorSet last_image_view = VK_NULL_HANDLE;
     int global_vtx_offset = 0;
     int global_idx_offset = 0;
     for (const ImDrawList* draw_list : draw_data->CmdLists)
@@ -617,12 +639,13 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplVulkan_DrawCallback_ResetRenderState)
+                {
                     ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height);
+                    last_image_view = VK_NULL_HANDLE;
+                }
                 else
                     pcmd->UserCallback(draw_list, pcmd);
-                last_desc_set = VK_NULL_HANDLE;
             }
             else
             {
@@ -633,8 +656,8 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
                 // Clamp to viewport as vkCmdSetScissor() won't accept values that are off bounds
                 if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
                 if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
-                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
-                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -646,11 +669,11 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
                 scissor.extent.height = (uint32_t)(clip_max.y - clip_min.y);
                 vkCmdSetScissor(command_buffer, 0, 1, &scissor);
 
-                // Bind DescriptorSet with font or user texture
-                VkDescriptorSet desc_set = (VkDescriptorSet)pcmd->GetTexID();
-                if (desc_set != last_desc_set)
-                    vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 0, 1, &desc_set, 0, nullptr);
-                last_desc_set = desc_set;
+                // Bind DescriptorSets for image view (font or user texture) and samplers
+                VkDescriptorSet image_view = (VkDescriptorSet)pcmd->GetTexID();
+                if (image_view != last_image_view)
+                    vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 0, 1, &image_view, 0, nullptr);
+                last_image_view = image_view;
 
                 // Draw
                 vkCmdDrawIndexed(command_buffer, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
@@ -659,7 +682,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
         global_idx_offset += draw_list->IdxBuffer.Size;
         global_vtx_offset += draw_list->VtxBuffer.Size;
     }
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = bd->RenderState = nullptr;
 
     // Note: at this point both vkCmdSetViewport() and vkCmdSetScissor() have been called.
     // Our last values will leak into user/application rendering IF:
@@ -753,7 +776,7 @@ void ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex)
         }
 
         // Create the Descriptor Set
-        backend_tex->DescriptorSet = ImGui_ImplVulkan_AddTexture(bd->TexSamplerLinear, backend_tex->ImageView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
+        backend_tex->DescriptorSet = ImGui_ImplVulkan_AddTexture(backend_tex->ImageView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
 
         // Store identifiers
         tex->SetTexID((ImTextureID)backend_tex->DescriptorSet);
@@ -1048,15 +1071,83 @@ static VkPipeline ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAlloc
     return pipeline;
 }
 
+static void ImGui_ImplVulkan_CreateDescriptorSetLayout(VkDescriptorSetLayout* p_layout, VkDescriptorType descriptor_type)
+{
+    ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
+    ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
+
+    VkDescriptorSetLayoutBinding binding[1] = {};
+    binding[0].descriptorType = descriptor_type;
+    binding[0].descriptorCount = 1;
+    binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
+    VkDescriptorSetLayoutCreateInfo info = {};
+    info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+    info.bindingCount = 1;
+    info.pBindings = binding;
+    VkResult err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, p_layout);
+    check_vk_result(err);
+}
+
+static VkDescriptorSet ImGui_ImplVulkan_CreateSamplerDS(VkSampler sampler)
+{
+    ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
+    ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
+
+    VkDescriptorSet descriptor_set;
+    VkDescriptorSetAllocateInfo alloc_info = {};
+    alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
+    alloc_info.descriptorPool = bd->DescriptorPool ? bd->DescriptorPool : v->DescriptorPool;
+    alloc_info.descriptorSetCount = 1;
+    alloc_info.pSetLayouts = &bd->DescriptorSetLayoutSampler;
+    VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set);
+    check_vk_result(err);
+
+    VkDescriptorImageInfo desc_image = {};
+    desc_image.sampler = sampler;
+    VkWriteDescriptorSet sampler_write_desc = {};
+    sampler_write_desc.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+    sampler_write_desc.dstSet = descriptor_set;
+    sampler_write_desc.descriptorCount = 1;
+    sampler_write_desc.dstBinding = 0;
+    sampler_write_desc.descriptorType = VK_DESCRIPTOR_TYPE_SAMPLER;
+    sampler_write_desc.pImageInfo = &desc_image;
+    vkUpdateDescriptorSets(v->Device, 1, &sampler_write_desc, 0, nullptr);
+    return descriptor_set;
+}
+
 bool ImGui_ImplVulkan_CreateDeviceObjects()
 {
     ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
     ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
     VkResult err;
 
-    if (!bd->TexSamplerLinear)
+    if (!bd->DescriptorSetLayoutTexture)
+        ImGui_ImplVulkan_CreateDescriptorSetLayout(&bd->DescriptorSetLayoutTexture, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE);
+    if (!bd->DescriptorSetLayoutSampler)
+        ImGui_ImplVulkan_CreateDescriptorSetLayout(&bd->DescriptorSetLayoutSampler, VK_DESCRIPTOR_TYPE_SAMPLER);
+
+    if (v->DescriptorPoolSize != 0)
+    {
+        IM_ASSERT(v->DescriptorPoolSize >= IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE);
+        VkDescriptorPoolSize pool_sizes[] =
+        {
+            { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, v->DescriptorPoolSize },
+            { VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
+        };
+        VkDescriptorPoolCreateInfo pool_info = {};
+        pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
+        pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
+        pool_info.maxSets = v->DescriptorPoolSize + IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE;
+        pool_info.poolSizeCount = (uint32_t)IM_COUNTOF(pool_sizes);
+        pool_info.pPoolSizes = pool_sizes;
+        err = vkCreateDescriptorPool(v->Device, &pool_info, v->Allocator, &bd->DescriptorPool);
+        check_vk_result(err);
+    }
+
+    // Create samplers
+    // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
+    if (!bd->SamplerLinear || !bd->SamplerNearest)
     {
-        // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling.
         VkSamplerCreateInfo info = {};
         info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
         info.magFilter = VK_FILTER_LINEAR;
@@ -1068,37 +1159,16 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
         info.minLod = -1000;
         info.maxLod = 1000;
         info.maxAnisotropy = 1.0f;
-        err = vkCreateSampler(v->Device, &info, v->Allocator, &bd->TexSamplerLinear);
+        err = vkCreateSampler(v->Device, &info, v->Allocator, &bd->SamplerLinear);
         check_vk_result(err);
-    }
+        bd->SamplerLinearDS = ImGui_ImplVulkan_CreateSamplerDS(bd->SamplerLinear);
 
-    if (!bd->DescriptorSetLayout)
-    {
-        VkDescriptorSetLayoutBinding binding[1] = {};
-        binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
-        binding[0].descriptorCount = 1;
-        binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
-        VkDescriptorSetLayoutCreateInfo info = {};
-        info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
-        info.bindingCount = 1;
-        info.pBindings = binding;
-        err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, &bd->DescriptorSetLayout);
-        check_vk_result(err);
-    }
-
-    if (v->DescriptorPoolSize != 0)
-    {
-        IM_ASSERT(v->DescriptorPoolSize >= IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE);
-        VkDescriptorPoolSize pool_size = { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, v->DescriptorPoolSize };
-        VkDescriptorPoolCreateInfo pool_info = {};
-        pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
-        pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
-        pool_info.maxSets = v->DescriptorPoolSize;
-        pool_info.poolSizeCount = 1;
-        pool_info.pPoolSizes = &pool_size;
-
-        err = vkCreateDescriptorPool(v->Device, &pool_info, v->Allocator, &bd->DescriptorPool);
+        info.magFilter = VK_FILTER_NEAREST;
+        info.minFilter = VK_FILTER_NEAREST;
+        info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+        err = vkCreateSampler(v->Device, &info, v->Allocator, &bd->SamplerNearest);
         check_vk_result(err);
+        bd->SamplerNearestDS = ImGui_ImplVulkan_CreateSamplerDS(bd->SamplerNearest);
     }
 
     if (!bd->PipelineLayout)
@@ -1108,10 +1178,10 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
         push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
         push_constants[0].offset = sizeof(float) * 0;
         push_constants[0].size = sizeof(float) * 4;
-        VkDescriptorSetLayout set_layout[1] = { bd->DescriptorSetLayout };
+        VkDescriptorSetLayout set_layout[2] = { bd->DescriptorSetLayoutTexture, bd->DescriptorSetLayoutSampler };
         VkPipelineLayoutCreateInfo layout_info = {};
         layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
-        layout_info.setLayoutCount = 1;
+        layout_info.setLayoutCount = 2;
         layout_info.pSetLayouts = set_layout;
         layout_info.pushConstantRangeCount = 1;
         layout_info.pPushConstantRanges = push_constants;
@@ -1191,10 +1261,12 @@ void    ImGui_ImplVulkan_DestroyDeviceObjects()
 
     if (bd->TexCommandBuffer)     { vkFreeCommandBuffers(v->Device, bd->TexCommandPool, 1, &bd->TexCommandBuffer); bd->TexCommandBuffer = VK_NULL_HANDLE; }
     if (bd->TexCommandPool)       { vkDestroyCommandPool(v->Device, bd->TexCommandPool, v->Allocator); bd->TexCommandPool = VK_NULL_HANDLE; }
-    if (bd->TexSamplerLinear)     { vkDestroySampler(v->Device, bd->TexSamplerLinear, v->Allocator); bd->TexSamplerLinear = VK_NULL_HANDLE; }
+    if (bd->SamplerLinear)        { vkDestroySampler(v->Device, bd->SamplerLinear, v->Allocator); bd->SamplerLinear = VK_NULL_HANDLE; }
+    if (bd->SamplerNearest)       { vkDestroySampler(v->Device, bd->SamplerNearest, v->Allocator); bd->SamplerNearest = VK_NULL_HANDLE; }
     if (bd->ShaderModuleVert)     { vkDestroyShaderModule(v->Device, bd->ShaderModuleVert, v->Allocator); bd->ShaderModuleVert = VK_NULL_HANDLE; }
     if (bd->ShaderModuleFrag)     { vkDestroyShaderModule(v->Device, bd->ShaderModuleFrag, v->Allocator); bd->ShaderModuleFrag = VK_NULL_HANDLE; }
-    if (bd->DescriptorSetLayout)  { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayout, v->Allocator); bd->DescriptorSetLayout = VK_NULL_HANDLE; }
+    if (bd->DescriptorSetLayoutTexture)  { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayoutTexture, v->Allocator); bd->DescriptorSetLayoutTexture = VK_NULL_HANDLE; }
+    if (bd->DescriptorSetLayoutSampler)  { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayoutSampler, v->Allocator); bd->DescriptorSetLayoutSampler = 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->DescriptorPool)       { vkDestroyDescriptorPool(v->Device, bd->DescriptorPool, v->Allocator); bd->DescriptorPool = VK_NULL_HANDLE; }
@@ -1290,6 +1362,11 @@ bool    ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info)
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplVulkan_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplVulkan_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplVulkan_DrawCallback_SetSamplerNearest;
+
     // Sanity checks
     IM_ASSERT(info->Instance != VK_NULL_HANDLE);
     IM_ASSERT(info->PhysicalDevice != VK_NULL_HANDLE);
@@ -1355,7 +1432,7 @@ void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
 
 // Register a texture by creating a descriptor
 // FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem, please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
-VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout)
+VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkImageView image_view, VkImageLayout image_layout)
 {
     ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();
     ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
@@ -1368,7 +1445,7 @@ VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image
         alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
         alloc_info.descriptorPool = pool;
         alloc_info.descriptorSetCount = 1;
-        alloc_info.pSetLayouts = &bd->DescriptorSetLayout;
+        alloc_info.pSetLayouts = &bd->DescriptorSetLayoutTexture;
         VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set);
         check_vk_result(err);
     }
@@ -1377,20 +1454,27 @@ VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image
     if (descriptor_set != VK_NULL_HANDLE)
     {
         VkDescriptorImageInfo desc_image[1] = {};
-        desc_image[0].sampler = sampler;
         desc_image[0].imageView = image_view;
         desc_image[0].imageLayout = image_layout;
         VkWriteDescriptorSet write_desc[1] = {};
         write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
         write_desc[0].dstSet = descriptor_set;
         write_desc[0].descriptorCount = 1;
-        write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+        write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE;
         write_desc[0].pImageInfo = desc_image;
         vkUpdateDescriptorSets(v->Device, 1, write_desc, 0, nullptr);
     }
     return descriptor_set;
 }
 
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout)
+{
+    IM_UNUSED(sampler);
+    return ImGui_ImplVulkan_AddTexture(image_view, image_layout);
+}
+#endif
+
 void ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set)
 {
     ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData();

backends/imgui_impl_vulkan.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [!] Renderer: User texture binding. Use 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
+//  [!] Renderer: User texture binding. Use a VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE 'VkDescriptorSet' as texture identifier. Call ImGui_ImplVulkan_AddTexture() to register one. Read the FAQ about ImTextureID/ImTextureRef + https://github.com/ocornut/imgui/pull/914 for discussions.
 //  [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
 //  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
 //  [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
@@ -78,7 +78,8 @@
 #endif
 
 // Backend uses a small number of descriptors per font atlas + as many as additional calls done to ImGui_ImplVulkan_AddTexture().
-#define IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE   (8)     // Minimum per atlas
+#define IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE   (8)     // Minimum per atlas
+#define IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE         (2)     // Minimum for linear + nearest
 
 // Specify settings to create pipeline and swapchain
 struct ImGui_ImplVulkan_PipelineInfo
@@ -109,7 +110,7 @@ struct ImGui_ImplVulkan_InitInfo
     uint32_t                        QueueFamily;
     VkQueue                         Queue;
     VkDescriptorPool                DescriptorPool;             // See requirements in note above; ignored if using DescriptorPoolSize > 0
-    uint32_t                        DescriptorPoolSize;         // Optional: set to create internal descriptor pool automatically instead of using DescriptorPool.
+    uint32_t                        DescriptorPoolSize;         // Optional: set to create internal ImageView descriptor pool automatically instead of using DescriptorPool.
     uint32_t                        MinImageCount;              // >= 2
     uint32_t                        ImageCount;                 // >= MinImageCount
     VkPipelineCache                 PipelineCache;              // Optional
@@ -152,12 +153,14 @@ IMGUI_IMPL_API void             ImGui_ImplVulkan_CreateMainPipeline(const ImGui_
 // (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
 IMGUI_IMPL_API void             ImGui_ImplVulkan_UpdateTexture(ImTextureData* tex);
 
-// Register a texture (VkDescriptorSet == ImTextureID)
-// FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem
-// Please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions.
-IMGUI_IMPL_API VkDescriptorSet  ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout);
+// Register a texture (VkDescriptorSet for a VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE == ImTextureID)
+IMGUI_IMPL_API VkDescriptorSet  ImGui_ImplVulkan_AddTexture(VkImageView image_view, VkImageLayout image_layout);
 IMGUI_IMPL_API void             ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set);
 
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+IMGUI_IMPL_API VkDescriptorSet  ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout); // Ignore VkSampler
+#endif
+
 // Optional: load Vulkan functions with a custom function loader
 // This is only useful with IMGUI_IMPL_VULKAN_NO_PROTOTYPES / VK_NO_PROTOTYPES
 IMGUI_IMPL_API bool             ImGui_ImplVulkan_LoadFunctions(uint32_t api_version, PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data = nullptr);
@@ -254,7 +257,7 @@ struct ImGui_ImplVulkanH_Window
         memset((void*)this, 0, sizeof(*this));
 
         // Parameters to create SwapChain
-        PresentMode = (VkPresentModeKHR)~0;             // Ensure we get an error if user doesn't set this.
+        PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;     // Ensure we get an error if user doesn't set this.
 
         // Parameters to create RenderPass
         AttachmentDesc.format = VK_FORMAT_UNDEFINED;    // Will automatically use wd->SurfaceFormat.format.

backends/imgui_impl_wgpu.cpp

@@ -20,6 +20,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
 //  2026-03-25: Added support for WGVK native backend via IMGUI_IMPL_WEBGPU_BACKEND_WGVK define, with SPIRV shaders if WGSL is not available. (#9316, #9246, #9257)
 //  2026-03-09: Removed support for Emscripten < 4.0.10. (#9281)
 //  2025-10-16: Update to compile with Dawn and Emscripten's 4.0.10+ '--use-port=emdawnwebgpu' ports. (#8381, #8898)
@@ -83,11 +84,13 @@ struct ImGui_ImplWGPU_Texture
 
 struct RenderResources
 {
-    WGPUSampler         Sampler = nullptr;              // Sampler for textures
-    WGPUBuffer          Uniforms = nullptr;             // Shader uniforms
-    WGPUBindGroup       CommonBindGroup = nullptr;      // Resources bind-group to bind the common resources to pipeline
-    ImGuiStorage        ImageBindGroups;                // Resources bind-group to bind the font/image resources to pipeline (this is a key->value map)
-    WGPUBindGroupLayout ImageBindGroupLayout = nullptr; // Cache layout used for the image bind group. Avoids allocating unnecessary JS objects when working with WebASM
+    WGPUSampler         SamplerLinear = nullptr;            // Bilinear sampler
+    WGPUSampler         SamplerNearest = nullptr;           // Nearest/point sampler
+    WGPUBuffer          Uniforms = nullptr;                 // Shader uniforms
+    WGPUBindGroup       CommonBindGroupLinear = nullptr;    // Common bind-group bound to group 0 (uniforms + SamplerLinear)
+    WGPUBindGroup       CommonBindGroupNearest = nullptr;   // Common bind-group bound to group 0 (uniforms + SamplerNearest)
+    ImGuiStorage        ImageBindGroups;                    // Resources bind-group to bind the font/image resources to pipeline (this is a key->value map)
+    WGPUBindGroupLayout ImageBindGroupLayout = nullptr;     // Cache layout used for the image bind group. Avoids allocating unnecessary JS objects when working with WebASM
 };
 
 struct FrameResources
@@ -114,6 +117,7 @@ struct ImGui_ImplWGPU_Data
     WGPUTextureFormat       renderTargetFormat = WGPUTextureFormat_Undefined;
     WGPUTextureFormat       depthStencilFormat = WGPUTextureFormat_Undefined;
     WGPURenderPipeline      pipelineState = nullptr;
+    ImGui_ImplWGPU_RenderState* RenderState = nullptr;  // == ImGui::GetPlatformIO().Renderer_RenderState during rendering.
 
     RenderResources         renderResources;
     FrameResources*         pFrameResources = nullptr;
@@ -296,9 +300,11 @@ static void SafeRelease(WGPUShaderModule& res)
 }
 static void SafeRelease(RenderResources& res)
 {
-    SafeRelease(res.Sampler);
+    SafeRelease(res.SamplerLinear);
+    SafeRelease(res.SamplerNearest);
     SafeRelease(res.Uniforms);
-    SafeRelease(res.CommonBindGroup);
+    SafeRelease(res.CommonBindGroupLinear);
+    SafeRelease(res.CommonBindGroupNearest);
     SafeRelease(res.ImageBindGroupLayout);
 };
 
@@ -313,6 +319,7 @@ static void SafeRelease(FrameResources& res)
 static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleWGSL(const char* wgsl_source)
 {
     ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
+    IM_UNUSED(bd);
 
     WGPUShaderSourceWGSL wgsl_desc = {};
     wgsl_desc.chain.sType = WGPUSType_ShaderSourceWGSL;
@@ -322,9 +329,10 @@ static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleWGSL(con
     desc.nextInChain = (WGPUChainedStruct*)&wgsl_desc;
 
     WGPUProgrammableStageDescriptor stage_desc = {};
+#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
     stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
-
     stage_desc.entryPoint = { "main", WGPU_STRLEN };
+#endif
     return stage_desc;
 }
 
@@ -418,15 +426,19 @@ static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPas
     wgpuRenderPassEncoderSetVertexBuffer(ctx, 0, fr->VertexBuffer, 0, fr->VertexBufferSize * sizeof(ImDrawVert));
     wgpuRenderPassEncoderSetIndexBuffer(ctx, fr->IndexBuffer, sizeof(ImDrawIdx) == 2 ? WGPUIndexFormat_Uint16 : WGPUIndexFormat_Uint32, 0, fr->IndexBufferSize * sizeof(ImDrawIdx));
     wgpuRenderPassEncoderSetPipeline(ctx, bd->pipelineState);
-    wgpuRenderPassEncoderSetBindGroup(ctx, 0, bd->renderResources.CommonBindGroup, 0, nullptr);
+    wgpuRenderPassEncoderSetBindGroup(ctx, 0, bd->renderResources.CommonBindGroupLinear, 0, nullptr);
 
     // Setup blend factor
     WGPUColor blend_color = { 0.f, 0.f, 0.f, 0.f };
     wgpuRenderPassEncoderSetBlendConstant(ctx, &blend_color);
 }
 
+// Draw callbacks
+static void ImGui_ImplWGPU_DrawCallback_ResetRenderState(const ImDrawList*, const ImDrawCmd*)   {} // Intentionally empty. Used as an identifier for rendering loop to call its code. Simpler to implement this way.
+static void ImGui_ImplWGPU_DrawCallback_SetSamplerLinear(const ImDrawList*, const ImDrawCmd*)   { ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData(); wgpuRenderPassEncoderSetBindGroup(bd->RenderState->RenderPassEncoder, 0, bd->renderResources.CommonBindGroupLinear, 0, nullptr); }
+static void ImGui_ImplWGPU_DrawCallback_SetSamplerNearest(const ImDrawList*, const ImDrawCmd*)  { ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData(); wgpuRenderPassEncoderSetBindGroup(bd->RenderState->RenderPassEncoder, 0, bd->renderResources.CommonBindGroupNearest, 0, nullptr); }
+
 // Render function
-// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
 void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
 {
     // Avoid rendering when minimized
@@ -521,7 +533,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     ImGui_ImplWGPU_RenderState render_state;
     render_state.Device = bd->wgpuDevice;
     render_state.RenderPassEncoder = pass_encoder;
-    platform_io.Renderer_RenderState = &render_state;
+    platform_io.Renderer_RenderState = bd->RenderState = &render_state;
 
     // Render command lists
     // (Because we merged all buffers into a single one, we maintain our own offset into them)
@@ -537,8 +549,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
             if (pcmd->UserCallback != nullptr)
             {
                 // User callback, registered via ImDrawList::AddCallback()
-                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                if (pcmd->UserCallback == ImGui_ImplWGPU_DrawCallback_ResetRenderState)
                     ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
                 else
                     pcmd->UserCallback(draw_list, pcmd);
@@ -549,12 +560,11 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
                 ImTextureID tex_id = pcmd->GetTexID();
                 ImGuiID tex_id_hash = ImHashData(&tex_id, sizeof(tex_id), 0);
                 WGPUBindGroup bind_group = (WGPUBindGroup)bd->renderResources.ImageBindGroups.GetVoidPtr(tex_id_hash);
-                if (!bind_group)
-                {
-                    bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bd->renderResources.ImageBindGroupLayout, (WGPUTextureView)tex_id);
-                    bd->renderResources.ImageBindGroups.SetVoidPtr(tex_id_hash, bind_group);
-                }
-                wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, nullptr);
+                if (!bind_group && tex_id != 0)
+                    if ((bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bd->renderResources.ImageBindGroupLayout, (WGPUTextureView)tex_id)) != 0)
+                        bd->renderResources.ImageBindGroups.SetVoidPtr(tex_id_hash, bind_group);
+                if (bind_group)
+                    wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, nullptr);
 
                 // Project scissor/clipping rectangles into framebuffer space
                 ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
@@ -563,8 +573,8 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
                 // Clamp to viewport as wgpuRenderPassEncoderSetScissorRect() won't accept values that are off bounds
                 if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
                 if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
-                if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
-                if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
+                if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
+                if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
                 if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
                     continue;
 
@@ -586,7 +596,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
     }
     image_bind_groups.Data.resize(0);
 
-    platform_io.Renderer_RenderState = nullptr;
+    platform_io.Renderer_RenderState = bd->RenderState = nullptr;
 }
 
 static void ImGui_ImplWGPU_DestroyTexture(ImTextureData* tex)
@@ -814,29 +824,35 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
 
     ImGui_ImplWGPU_CreateUniformBuffer();
 
-    // Create sampler
+    // Create samplers (Linear/Nearest)
     // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
     WGPUSamplerDescriptor sampler_desc = {};
-    sampler_desc.minFilter = WGPUFilterMode_Linear;
-    sampler_desc.magFilter = WGPUFilterMode_Linear;
-    sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Linear;
     sampler_desc.addressModeU = WGPUAddressMode_ClampToEdge;
     sampler_desc.addressModeV = WGPUAddressMode_ClampToEdge;
     sampler_desc.addressModeW = WGPUAddressMode_ClampToEdge;
     sampler_desc.maxAnisotropy = 1;
-    bd->renderResources.Sampler = wgpuDeviceCreateSampler(bd->wgpuDevice, &sampler_desc);
+    sampler_desc.minFilter = WGPUFilterMode_Linear;
+    sampler_desc.magFilter = WGPUFilterMode_Linear;
+    sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Linear;
+    bd->renderResources.SamplerLinear = wgpuDeviceCreateSampler(bd->wgpuDevice, &sampler_desc);
+    sampler_desc.minFilter = WGPUFilterMode_Nearest;
+    sampler_desc.magFilter = WGPUFilterMode_Nearest;
+    sampler_desc.mipmapFilter = WGPUMipmapFilterMode_Nearest;
+    bd->renderResources.SamplerNearest = wgpuDeviceCreateSampler(bd->wgpuDevice, &sampler_desc);
 
-    // Create resource bind group
+    // Create resource bind groups (one per sampler, otherwise identical)
     WGPUBindGroupEntry common_bg_entries[] =
     {
         { nullptr, 0, bd->renderResources.Uniforms, 0, MEMALIGN(sizeof(Uniforms), 16), 0, 0 },
-        { nullptr, 1, 0, 0, 0, bd->renderResources.Sampler, 0 },
+        { nullptr, 1, 0, 0, 0, bd->renderResources.SamplerLinear, 0 },
     };
     WGPUBindGroupDescriptor common_bg_descriptor = {};
     common_bg_descriptor.layout = bg_layouts[0];
     common_bg_descriptor.entryCount = sizeof(common_bg_entries) / sizeof(WGPUBindGroupEntry);
     common_bg_descriptor.entries = common_bg_entries;
-    bd->renderResources.CommonBindGroup = wgpuDeviceCreateBindGroup(bd->wgpuDevice, &common_bg_descriptor);
+    bd->renderResources.CommonBindGroupLinear = wgpuDeviceCreateBindGroup(bd->wgpuDevice, &common_bg_descriptor);
+    common_bg_entries[1].sampler = bd->renderResources.SamplerNearest;
+    bd->renderResources.CommonBindGroupNearest = wgpuDeviceCreateBindGroup(bd->wgpuDevice, &common_bg_descriptor);
     bd->renderResources.ImageBindGroupLayout = bg_layouts[1];
 
     SafeRelease(vertex_shader_desc.module);
@@ -888,6 +904,11 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
     io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;   // We can honor ImGuiPlatformIO::Textures[] requests during render.
 
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.DrawCallback_ResetRenderState = ImGui_ImplWGPU_DrawCallback_ResetRenderState;
+    platform_io.DrawCallback_SetSamplerLinear = ImGui_ImplWGPU_DrawCallback_SetSamplerLinear;
+    platform_io.DrawCallback_SetSamplerNearest = ImGui_ImplWGPU_DrawCallback_SetSamplerNearest;
+
     bd->initInfo = *init_info;
     bd->wgpuDevice = init_info->Device;
     bd->defaultQueue = wgpuDeviceGetQueue(bd->wgpuDevice);
@@ -896,11 +917,7 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
     bd->numFramesInFlight = init_info->NumFramesInFlight;
     bd->frameIndex = UINT_MAX;
 
-    bd->renderResources.Sampler = nullptr;
-    bd->renderResources.Uniforms = nullptr;
-    bd->renderResources.CommonBindGroup = nullptr;
     bd->renderResources.ImageBindGroups.Data.reserve(100);
-    bd->renderResources.ImageBindGroupLayout = nullptr;
 
     // Create buffers with a default size (they will later be grown as needed)
     bd->pFrameResources = new FrameResources[bd->numFramesInFlight];

backends/imgui_impl_win32.cpp

@@ -412,7 +412,7 @@ void    ImGui_ImplWin32_NewFrame()
     // Setup time step
     INT64 current_time = 0;
     ::QueryPerformanceCounter((LARGE_INTEGER*)&current_time);
-    io.DeltaTime = (float)(current_time - bd->Time) / bd->TicksPerSecond;
+    io.DeltaTime = (float)((double)(current_time - bd->Time) / (double)bd->TicksPerSecond);
     bd->Time = current_time;
 
     // Update OS mouse position
@@ -930,7 +930,7 @@ float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor)
         {
             GetDpiForMonitorFn((HMONITOR)monitor, MDT_EFFECTIVE_DPI, &xdpi, &ydpi);
             IM_ASSERT(xdpi == ydpi); // Please contact me if you hit this assert!
-            return xdpi / 96.0f;
+            return (float)xdpi / 96.0f;
         }
     }
 #ifndef NOGDI
@@ -940,7 +940,7 @@ float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor)
     IM_ASSERT(xdpi == ydpi); // Please contact me if you hit this assert!
     ::ReleaseDC(nullptr, dc);
 #endif
-    return xdpi / 96.0f;
+    return (float)xdpi / 96.0f;
 }
 
 float ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd)

backends/vulkan/glsl_shader.frag

@@ -1,7 +1,8 @@
 #version 450 core
 layout(location = 0) out vec4 fColor;
 
-layout(set=0, binding=0) uniform sampler2D sTexture;
+layout(set=0, binding=0) uniform texture2D _Texture;
+layout(set=1, binding=0) uniform sampler _Sampler;
 
 layout(location = 0) in struct {
     vec4 Color;
@@ -10,5 +11,5 @@ layout(location = 0) in struct {
 
 void main()
 {
-    fColor = In.Color * texture(sTexture, In.UV.st);
+    fColor = In.Color * texture(sampler2D(_Texture, _Sampler), In.UV.st);
 }

docs/BACKENDS.md

@@ -255,8 +255,8 @@ void MyImGuiBackend_RenderDrawData(ImDrawData* draw_data)
             const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
             if (pcmd->UserCallback)
             {
-                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
-                    MyEngineSetupenderState();
+                if (pcmd->UserCallback == platform_io.DrawCallback_ResetRenderState)
+                    MyEngineSetupSenderState();
                 else
                     pcmd->UserCallback(cmd_list, pcmd);
             }

docs/CHANGELOG.txt

@@ -35,6 +35,139 @@ HOW TO UPDATE?
   and API updates have been a little more frequent lately. They are documented below and in imgui.cpp and should not affect all users.
 - Please report any issue!
 
+-----------------------------------------------------------------------
+ VERSION 1.92.8 WIP (In Progress)
+-----------------------------------------------------------------------
+
+Breaking Changes:
+
+- DrawList:
+  - Obsoleted `ImDrawCallback_ResetRenderState` in favor of using `ImGui::GetPlatformIO().DrawCallback_ResetRenderState`,
+    which is part of our new standard draw callbacks. (#9378)
+    Redirecting the earlier value into the later one when set, so both old and new code should work.
+- Backends:
+  - Vulkan: redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. (#914)
+    This change allows us to facilitate changing samplers, in line with other backends. [@yaz0r, @ocornut]
+    - When creating your own descriptor pool (instead of letting backend creates its own):
+      - Before: need at least IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER.
+      - After:  need at least IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE.
+                            + IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE       descriptors of type VK_DESCRIPTOR_TYPE_SAMPLER.
+    - When registering custom textures: changed ImGui_ImplVulkan_AddTexture() signature to remove Sampler.
+      - Before: ImGui_ImplVulkan_AddTexture(VkSampler, VkImageView, VkImageLayout)
+      - After:  ImGui_ImplVulkan_AddTexture(VkImageView, VkImageLayout)
+      - Kept inline redirection function that ignores the sampler (will obsolete).
+  - DirectX10, DirectX11, SDLGPU3, Vulkan: removed samplers from ImGui_ImplXXXX_RenderState.
+    Prefer to use backend-agnostic DrawCallback_SetSamplerLinear which works everywhere! (#9378)
+    If there is a legit need/request for them or any render state we can always add them back.
+
+Other Changes:
+
+- DrawList:
+  - Added room in ImGuiPlatformIO for standard backend-agnostic draw callbacks. Those callbacks
+    are setup/provided by the backend and available in most of our standard backends.
+    They allow backend-agnostic code from e.g. switching to a Nearest/Point sampler without
+    messing with custom Renderer-specific callbacks.
+      platform_io.DrawCallback_ResetRenderState;    // Request to reset the graphics/render state.
+      platform_io.DrawCallback_SetSamplerLinear;    // Request to set current texture sampling to Linear
+      platform_io.DrawCallback_SetSamplerNearest;   // Request to set current texture sampling to Nearest/Point
+    Note that some backends might not support all callbacks.
+    (#9378, #9371, #3590, #8926, #2973, #7485, #7468, #6969, #5118, #7616, #9173, #8322, #7230,
+    #5999, #6452, #5156, #7342, #7592, #7511)
+  - Made AddCallback() user data default to Null for convenience.
+- InputText:
+  - InputTextMultiline: fixed an issue processing deactivation logic when an active
+    multi-line edit is clipped due to being out of view.
+  - Fixed a crash when toggling ReadOnly while active. (#9354)
+  - CharFilter callback event sets CursorPos/SelectionStart/SelectionEnd. (#816)
+- Tables:
+  - Fixed issues reporting ideal size to parent window/container: (#9352, #7651)
+    - When both scrollbars are visible but only one of ScrollX/ScrollY was explicitly requested.
+    - When vertical scrollbar was not at the top, the computation was often incorrect.
+- Windows:
+  - Fixed a single-axis auto-resizing feedback loop issue with nested containers
+    and varying scrollbar visibility. (#9352)
+  - Detect and report error when calling End() instead of EndPopup() on a popup. (#9351)
+  - Child windows with only ImGuiChildFlags_AutoResizeY flag keep using the proportional
+    default ItemWidth. (#9355)
+- Multi-Select:
+  - Fixed an issue using Multi-Select within a Table causing column width measurement to
+    be invalid when trailing column contents is not submitted in the last row. (#9341, #8250)
+  - Fixed an issue using Multi-Select within a Table with the right-most column visible,
+    which could lead to an extra vertical offset in the Header row. (#8250)
+  - Box-Select: fixed an issue using ImGuiMultiSelectFlags_BoxSelect1d mode while scrolling.
+    Notably, using mouse wheel while holding a box-selection could lead items close to windows
+    edges from not being correctly unselected. (#7994, #8250, #7821, #7850, #7970)
+  - Box-Select: improved dirty/unclip rectangle logic for ImGuiMultiSelectFlags_BoxSelect2d.
+  - Box-Select: fixed an issue using ImGuiMultiSelectFlags_BoxSelect2d mode, where
+    items out of view wouldn't be properly selected while scrolling while mouse cursor
+    is hovering outside of selection scope. (#7994, #1861, #6518)
+  - Box-Select: fixed an issue where items out of horizontal view would sometimes lead
+    to incorrect merging of sequential selection requests while also scrolling fast
+    enough to overlap multiple rows during a frame. (#7994, #1861, #6518)
+  - Box-Select: fixed an issue using ImGuiMultiSelectFlags_BoxSelect2d mode in a Table
+    while relying on the TableNextColumn() return value to perform coarse clipping. (#7994)
+  - Box-Select: disabled merging consecutive selection requests as we have no reliable
+    way of detecting if user has submitted all consecutives items without clipping gaps,
+    and ImGuiSelectionUserData is technically opaque storage. (#7994, #1861)
+    (we will probably bring this back as a minor optimization if we have a way to for
+    user to tell us ImGuiSelectionUserData are indices)
+  - Box-Select: fixes for using accross nested child windows. (#8364)
+  - Box-Select + Clipper: fixed an issue selecting items while scrolling while a clipper
+    active. (#7994, #8250, #7821, #7850, #7970)
+  - Box-Select + Tables: fixed an issue using box-selection in a tables with
+    items straying out of columns boundaries. (#7994, #2221)
+  - Box-Select + Tables: fixed an issue when calling `BeginMultiSelect()` in a table
+    before layout has been locked (first row or headers row submitted). (#8250)
+- Style:
+  - Fixed vertical scrollbar top coordinates when using thick borders on windows
+    with no title bar and no menu bar. (#9366)
+- Fonts:
+  - imgui_freetype: add FreeType headers & compiled version in 'About Dear ImGui' details.
+  - Assert when using MergeMode with an explicit size over a target font with an implicit
+    size, as scale factor are likely erroneous. (#9361)
+- Clipper:
+  - Improved error reporting when misusing the clipper inside a table (prioritize
+    reporting the common clipper error over a table sanity check assert). (#9350)
+  - Tweaked assert triggering when first item height measurement fails, and made it
+    a better recoverable error. (#9350)
+- Misc:
+  - Minor optimization: reduce redudant label scanning in common widgets.
+  - Added missing Test Engine hooks for PlotXXX(), VSliderXXX(), TableHeader().
+- Backends:
+  - Added support for new standardized draw callbacks in most backends: (#9378)
+    - Allegro5:     Reset     n/a               n/a
+    - DX9:          Reset     SetSamplerLinear  SetSamplerNearest
+    - DX10:         Reset     SetSamplerLinear  SetSamplerNearest
+    - DX11:         Reset     SetSamplerLinear  SetSamplerNearest
+    - DX12:         Reset     SetSamplerLinear  SetSamplerNearest
+    - Metal:        Reset     *missing*         *missing*
+    - OpenGL2:      Reset     SetSamplerLinear  SetSamplerNearest
+    - OpenGL3+:     Reset     SetSamplerLinear  SetSamplerNearest
+    - SDLGPU3:      Reset     SetSamplerLinear  SetSamplerNearest
+    - SDLRenderer2: Reset     n/a               n/a
+    - SDLRenderer3: Reset     SetSamplerLinear  SetSamplerNearest
+    - Vulkan:       Reset     SetSamplerLinear  SetSamplerNearest
+    - WebGPU:       Reset     SetSamplerLinear  SetSamplerNearest
+    (Vulkan backend by @yaz0r, others by @ocornut)
+  - GLFW: added a Win32-specific implementation of `ImGui_ImplGlfw_GetContentScaleXXXX`
+    functions for legacy GLFW 3.2. (#9003)
+  - Metal: avoid redundant vertex buffer bind in `SetupRenderState()`, which leads
+    to validation issue. (#9343) [@Hunam6]
+  - Metal: use a dedicated `bufferCacheLock` to avoid crashing when `bufferCache` is
+    replaced by a new object while being used for `@synchronize()`. (#9367) [@andygrundman]
+  - SDL2: made `ImGui_ImplSDL2_GetContentScaleForWindow()`/`ImGui_ImplSDL2_GetContentScaleForDisplay()`
+    helpers return a minimum of 1.0f, as some Linux setup seems to report <1.0f value
+    and this breaks scaling border size. (#9369)
+  - WebGPU: always use SPIR-V shader on WGVK, as it cannot be detected at runtime. (#9316, #9246, #9257)
+- Examples:
+  - Update VS toolset in all .vcxproj from VS2015 (v140) to VS2017 (v141). The later is the
+    first that supports vcpkg. Onward we will likely stop testing building the library with VS2015.
+  - GLFW+Vulkan, SDL2+Vulkan, SDL3+Vulkan, Win32+Vulkan: reworked to create a descriptor pool with:
+    - IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE.
+    - IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE       descriptors of type VK_DESCRIPTOR_TYPE_SAMPLER.
+
+
+
 -----------------------------------------------------------------------
  VERSION 1.92.7 (Released 2026-04-02)
 -----------------------------------------------------------------------

docs/TODO.txt

@@ -2,12 +2,14 @@ dear imgui
 ISSUES & TODO LIST
 
 Issue numbers (#) refer to GitHub issues listed at https://github.com/ocornut/imgui/issues/XXXX
+
 THIS LIST IS NOT WELL MAINTAINED. MOST OF THE WORK HAPPENS ON GITHUB NOWADAYS.
+
 The list below consist mostly of ideas noted down before they are requested/discussed by users (at which point they usually exist on the github issue tracker).
 It's mostly a bunch of personal notes, probably incomplete. Feel free to query if you have any questions.
 
- - doc: add a proper documentation system (maybe relying on automation? #435)
  - doc: checklist app to verify backends/integration of imgui (test inputs, rendering, callback, etc.).
+ - doc: add a proper documentation system (maybe relying on automation? #435)
  - doc/tips: tips of the day: website? applet in imgui_club?
 
  - window: preserve/restore relative focus ordering (persistent or not), and e.g. of multiple reappearing windows (#2304) -> also see docking reference to same #.
@@ -29,9 +31,9 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - window/clipping: some form of clipping when DisplaySize (or corresponding viewport) is zero.
  - window/tabbing: add a way to signify that a window or docked window requires attention (e.g. blinking title bar, trying to click behind a modal).
  - window/id_stack: add e.g. window->GetIDFromPath() with support for leading / and ../ (#1390, #331) -> model from test engine.
- ! scrolling: exposing horizontal scrolling with Shift+Wheel even when scrollbar is disabled expose lots of issues (#2424, #1463)
+
+ ! scrolling: exposing horizontal scrolling with Shift+Wheel even when scrollbar is disabled expose various issues (#2424, #1463)
  - scrolling: while holding down a scrollbar, try to keep the same contents visible (at least while not moving mouse)
- - scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet.
  - scrolling: forward mouse wheel scrolling to parent window when at the edge of scrolling limits? (useful for listbox,tables?)
  - scrolling/style: shadows on scrollable areas to denote that there is more contents (see e.g. DaVinci Resolve ui)
 
@@ -51,38 +53,32 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - widgets: display mode: widget-label, label-widget (aligned on column or using fixed size), label-newline-tab-widget etc. (#395)
  - widgets: clean up widgets internal toward exposing everything and stabilizing imgui_internals.h.
  - widgets: add always-allow-overlap mode. This should perhaps be the default? one problem is that highlight after mouse-wheel scrolling gets deferred, makes scrolling more flickery.
- - widgets: start exposing PushItemFlag() and ImGuiItemFlags
  - widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260
  - widgets: activate by identifier (trigger button, focus given id)
  - widgets: custom glyph/shapes replacements for stock shapes. (also #6090 #2431 #2235 #6517)
  - widgets: coloredit: keep reporting as active when picker is on?
- - widgets: group/scalarn functions: expose more per-component information. e.g. store NextItemData.ComponentIdx set by scalarn function, groups can expose them back somehow.
+ - widgets: group/ScalarN functions: expose more per-component information. e.g. store NextItemData.ComponentIdx set by scalarn function, groups can expose them back somehow.
  - selectable: using (size.x == 0.0f) and (SelectableTextAlign.x > 0.0f) followed by SameLine() is currently not supported.
  - selectable: generic BeginSelectable()/EndSelectable() mechanism. (work out alongside range-select branch)
  - selectable: a way to visualize partial/mixed selection (e.g. parent tree node has children with mixed selection)
 
+ - input text: flag to disable live update of the user buffer (also applies to float/int text input) (#701)
  - input text: preserve scrolling when unfocused?
  - input text: reorganize event handling, allow CharFilter to modify buffers, allow multiple events? (#541)
- - input text: expose CursorPos in char filter event (#816)
- - input text: try usage idiom of using InputText with data only exposed through get/set accessors, without extraneous copy/alloc. (#3009)
- - input text: access public fields via a non-callback API e.g. InputTextGetState("xxx") that may return nullptr if not active (available in internals)
- - input text: flag to disable live update of the user buffer (also applies to float/int text input) (#701)
  - input text: hover tooltip could show unclamped text
  - input text: support for INSERT key to toggle overwrite mode. currently disabled because stb_textedit behavior is unsatisfactory on multi-line. (#2863)
  - input text: option to Tab after an Enter validation.
  - input text: add ImGuiInputTextFlags_EnterToApply? (off #218)
  - input text: easier ways to update buffer (from source char*) while owned. preserve some sort of cursor position for multi-line text.
  - input text: add discard flag (e.g. ImGuiInputTextFlags_DiscardActiveBuffer) or make it easier to clear active focus for text replacement during edition (#725)
- - input text: display bug when clicking a drag/slider after an input text in a different window has all-selected text (order dependent). actually a very old bug but no one appears to have noticed it.
  - input text: allow centering/positioning text so that ctrl+clicking Drag or Slider keeps the textual value at the same pixel position.
  - input text: decorrelate display layout from inputs with custom template - e.g. what's the easiest way to implement a nice IP/Mac address input editor?
- - input text: global callback system so user can plug in an expression evaluator easily. (#1691)
+ - input text: callback system (global) so user can plug in an expression evaluator easily. (#1691)
  - input text: force scroll to end or scroll to a given line/contents (so user can implement a log or a search feature)
  - input text: a way to preview completion (e.g. disabled text completing from the cursor)
  - input text: a side bar that could e.g. preview where errors are. probably left to the user to draw but we'd need to give them the info there.
  - input text: a way for the user to provide syntax coloring.
  - input text: Shift+TAB with ImGuiInputTextFlags_AllowTabInput could eat preceding blanks, up to tab_count.
- - input text multi-line: don't directly call AddText() which does an unnecessary vertex reserve for character count prior to clipping. and/or more line-based clipping to AddText(). and/or reorganize TextUnformatted/RenderText for more efficiency for large text (e.g TextUnformatted could clip and log separately, etc).
  - input text multi-line: support for copy/cut without selection (copy/cut current line?)
  - input text multi-line: line numbers? status bar? (follow up on #200)
  - input text multi-line: behave better when user changes input buffer while editing is active (even though it is illegal behavior). namely, the change of buffer can create a scrollbar glitch (#725)
@@ -111,11 +107,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
 !- color: the color conversion helpers/types are a mess and needs sorting out.
  - color: (api breaking) ImGui::ColorConvertXXX functions should be loose ImColorConvertXX to match imgui_internals.h
 
- - plot: full featured plot/graph api w/ scrolling, zooming etc. --> promote using ImPlot
- - (plot: deleted all other todo lines on 2023-06-28)
-
  - clipper: ability to disable the clipping through a simple flag/bool.
- - clipper: ability to run without knowing full count in advance.
  - clipper: horizontal clipping support. (#2580)
 
  - separator: expose flags (#759)
@@ -141,22 +133,19 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - knob: rotating knob widget (#942)
  - drag float: support for reversed drags (min > max) (removed is_locked, also see fdc526e)
  - drag float: up/down axis
- - drag float: power != 0.0f with current value being outside the range keeps the value stuck.
  - drag float: added leeway on edge (e.g. a few invisible steps past the clamp limits)
 
  - combo: a way/helper to customize the combo preview (#1658) -> experimental BeginComboPreview()
  - combo/listbox: keyboard control. need InputText-like non-active focus + key handling. considering keyboard for custom listbox (pr #203)
- - listbox: multiple selection (WIP range-select branch)
  - listbox: unselect option (#1208)
- - listbox: make it easier/more natural to implement range-select (need some sort of info/ref about the last clicked/focused item that user can translate to an index?) (WIP range-select branch)
  - listbox: user may want to initial scroll to focus on the one selected value?
  - listbox: disable capturing mouse wheel if the listbox has no scrolling. (#1681)
  - listbox: scrolling should track modified selection.
  - listbox: future api should allow to enable horizontal scrolling (#2510)
 
 !- popups/menus: clarify usage of popups id, how MenuItem/Selectable closing parent popups affects the ID, etc. this is quite fishy needs improvement! (#331, #402)
- - modals: make modal title bar blink when trying to click outside the modal
- - modals: technically speaking, we could make Begin() with ImGuiWindowFlags_Modal work without involving popup. May help untangle a few things, as modals are more like regular windows than popups.
+ - modals: make modal title bar blink when trying to click outside the modal.
+ - modals: technically speaking, we could make Begin() with ImGuiWindowFlags_Modal work without involving popup. May help untangle a few things, as modals are more like regular windows than popups. (#402)
  - popups: if the popup functions took explicit ImGuiID it would allow the user to manage the scope of those ID. (#331)
  - popups: clicking outside (to close popup) and holding shouldn't drag window below.
  - popups: add variant using global identifier similar to Begin/End (#402)
@@ -198,7 +187,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - style: FramePadding could be different for up vs down (#584)
  - style: WindowPadding needs to be EVEN as the 0.5 multiplier used on this value probably have a subtle effect on clip rectangle
  - style: have a more global HSV setter (e.g. alter hue on all elements). consider replacing active/hovered by offset in HSV space? (#438, #707, #1223)
- - style: gradients fill (#1223) ~ 2 bg colors for each fill? tricky with rounded shapes and using textures for corners.
+ - style: gradients fill (#4722, #1223) ~ 2 bg colors for each fill? tricky with rounded shapes and using textures for corners.
  - style editor: color child window height expressed in multiple of line height.
 
  - log: improve logging of ArrowButton, ListBox, TabItem
@@ -214,7 +203,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - filters: fuzzy matches (may use code at blog.forrestthewoods.com/4cffeed33fdb)
 
  - drag and drop: focus drag target window on hold (even without open)
- - drag and drop: releasing a drop shows the "..." tooltip for one frame - since e13e598 (#1725)
  - drag and drop: drag source on a group object (would need e.g. an invisible button covering group in EndGroup) https://twitter.com/paniq/status/1121446364909535233
  - drag and drop: have some way to know when a drag begin from BeginDragDropSource() pov. (see 2018/01/11 post in #143)
  - drag and drop: allow preview tooltip to be submitted from a different place than the drag source. (#1725)
@@ -247,7 +235,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - font: make it easier to submit own bitmap font (same texture, another texture?). (#2127, #2575)
  - font: MemoryTTF taking ownership confusing/not obvious, maybe default should be opposite?
  - font: storing MinAdvanceX per font would allow us to skip calculating line width (under a threshold of character count) in loops looking for block width
- - font/demo: demonstrate use of ImFontGlyphRangesBuilder.
  - font/draw: vertical and/or rotated text renderer (#705) - vertical is easier clipping wise
  - font/draw: need to be able to specify wrap start position.
  - font/draw: better reserve policy for large horizontal block of text (shouldn't reserve for all clipped lines). also see #3349.
@@ -273,12 +260,11 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - nav: NavFlattened: ESC on a flattened child should select something.
  - nav: NavFlattened: broken: in typical usage scenario, the items of a fully clipped child are currently not considered to enter into a NavFlattened child.
  - nav: NavFlattened: cannot access menu-bar of a flattened child window with Alt/menu key (not a very common use case..).
- - nav: simulate right-click or context activation? (SHIFT+F10, keyboard Menu key?)
  - nav/popup: esc/enter default behavior for popups, e.g. be able to mark an "ok" or "cancel" button that would get triggered by those keys, default validation button, etc.
  - nav/treenode: left within a tree node block as a fallback (ImGuiTreeNodeFlags_NavLeftJumpsBackHere by default?)
  - nav/menus: pressing left-right on a vertically clipped menu bar tends to jump to the collapse/close buttons.
  - nav/menus: allow pressing Menu to leave a sub-menu.
- - nav/menus: a way to access the main menu bar with Alt? (currently needs CTRL+TAB) or last focused window menu bar?
+ ! nav/menus: a way to access the main menu bar with Alt? (currently needs CTRL+TAB) or last focused window menu bar?
  - nav/menus: when using the main menu bar, even though we restore focus after, the underlying window loses its title bar highlight during menu manipulation. could we prevent it?
  - nav/menus: main menu bar currently cannot restore a nullptr focus. Could save NavWindow at the time of being focused, similarly to what popup do?
  - nav/menus: Alt,Up could open the first menu (e.g. "File") currently it tends to nav into the window/collapse menu. Do do that we would need custom transition?
@@ -297,7 +283,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - misc: no way to run a root-most GetID() with ImGui:: api since there's always a Debug window in the stack. (mentioned in #2960)
  - misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags (Why?)
  - misc: PushItemFlag(): add a flag to disable keyboard capture when used with mouse? (#1682)
- - misc: use more size_t in public api?
  - misc: support for string view/range instead of char* would e.g. facilitate usage with Rust (#683, #3038, WIP string_view branch)
 
  - demo: demonstrate using PushStyleVar() in more details.
@@ -315,8 +300,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - backends: opengl: could use a single vertex buffer and glBufferSubData for uploads?
  - backends: opengl: explicitly disable GL_STENCIL_TEST in bindings.
  - backends: vulkan: viewport: support for synchronized swapping of multiple swap chains.
- - backends: bgfx: https://gist.github.com/RichardGale/6e2b74bc42b3005e08397236e4be0fd0
- - backends: emscripten: with refactored examples, we could provide a direct imgui_impl_emscripten platform layer (see eg. https://github.com/floooh/sokol-samples/blob/master/html5/imgui-emsc.cc#L42)
+ - backends: emscripten: dedicated backend? (#8178, #9120, eg. https://github.com/floooh/sokol-samples/blob/master/html5/imgui-emsc.cc#L42)
 
  - bindings: ways to use clang ast dump to generate bindings or helpers for bindings? (e.g. clang++ -Xclang -ast-dump=json imgui.h) (--> use https://github.com/dearimgui/dear_bindings)
 

examples/example_allegro5/example_allegro5.vcxproj

@@ -28,27 +28,27 @@
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     <CharacterSet>MultiByte</CharacterSet>
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     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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examples/example_glfw_opengl2/example_glfw_opengl2.vcxproj

@@ -28,27 +28,27 @@
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     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
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     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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examples/example_glfw_opengl3/example_glfw_opengl3.vcxproj

@@ -28,27 +28,27 @@
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     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
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     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj

@@ -28,27 +28,27 @@
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     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
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-    <PlatformToolset>v140</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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examples/example_glfw_vulkan/main.cpp

@@ -193,7 +193,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

examples/example_glut_opengl2/example_glut_opengl2.vcxproj

@@ -28,27 +28,27 @@
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     <UseDebugLibraries>true</UseDebugLibraries>
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-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
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+    <PlatformToolset>v141</PlatformToolset>
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examples/example_null/example_null.vcxproj

@@ -21,33 +21,34 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{1A0BF63C-18EF-4BAE-A8DA-055481B11F5D}</ProjectGuid>
     <RootNamespace>example_win32_directx11</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
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   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
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     <CharacterSet>Unicode</CharacterSet>
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+    <PlatformToolset>v141</PlatformToolset>
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examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj

@@ -29,27 +29,27 @@
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     <CharacterSet>MultiByte</CharacterSet>
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+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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     <UseDebugLibraries>false</UseDebugLibraries>
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     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
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examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj

@@ -28,27 +28,27 @@
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     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl2_sdlrenderer2/example_sdl2_sdlrenderer2.vcxproj

@@ -29,27 +29,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -184,4 +184,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -187,4 +187,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_vulkan/main.cpp

@@ -184,7 +184,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

examples/example_sdl3_directx11/example_sdl3_directx11.vcxproj

@@ -29,27 +29,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl3_opengl3/example_sdl3_opengl3.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl3_sdlgpu3/example_sdl3_sdlgpu3.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -186,4 +186,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl3_sdlrenderer3/example_sdl3_sdlrenderer3.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl3_vulkan/example_sdl3_vulkan.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_sdl3_vulkan/main.cpp

@@ -186,7 +186,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

examples/example_win32_directx10/example_win32_directx10.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_directx11/example_win32_directx11.vcxproj

@@ -21,33 +21,34 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9F316E83-5AE5-4939-A723-305A94F48005}</ProjectGuid>
     <RootNamespace>example_win32_directx11</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_directx9/example_win32_directx9.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_opengl3/example_win32_opengl3.vcxproj

@@ -28,27 +28,27 @@
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_vulkan/example_win32_vulkan.vcxproj

@@ -21,33 +21,34 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>{0A1E32DF-E0F4-4CCE-B3DC-9644C503BD88}</ProjectGuid>
     <RootNamespace>example_win32_directx11</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v141</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

examples/example_win32_vulkan/main.cpp

@@ -182,7 +182,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
     {
         VkDescriptorPoolSize pool_sizes[] =
         {
-            { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE },
+            { VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
         };
         VkDescriptorPoolCreateInfo pool_info = {};
         pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;

examples/premake5-lib.lua

@@ -0,0 +1,7 @@
+project "imgui"
+    kind "StaticLib"
+    files { "../*.h", "../*.cpp" }
+    vpaths { ["imgui"] = { "../*.cpp", "../*.h", "../misc/debuggers/*.natvis" } }
+    filter { "toolset:msc*" }
+        files { "../misc/debuggers/*.natvis" }
+

examples/premake5.lua

@@ -0,0 +1,322 @@
+
+-- We use Premake5 to generate project files (Visual Studio solutions, XCode solutions, Makefiles, etc.)
+-- Download Premake5: at https://premake.github.io/download
+-- YOU NEED PREMAKE 5.0.0-alpha10 or later
+
+--------- HELP
+-- To reduce friction for people who don't aren't used to Premake, we list some concrete usage examples.
+
+if _ACTION == nil then
+	print "-----------------------------------------"
+	print " DEAR IMGUI EXAMPLES - PROJECT GENERATOR"
+	print "-----------------------------------------"
+	print "Usage:"
+	print "  premake5 [generator] [options]"
+	print "Examples:"
+	print "  premake5 vs2010"
+	print "  premake5 vs2019 --with-sdl2 --with-vulkan"
+	print "  premake5 xcode4 --with-glfw"
+    print "  premake5 gmake2 --with-glfw --cc=clang"
+	print "Generators:"
+	print "  codelite gmake gmake2 vs2008 vs2010 vs2012 vs2013 vs2015 vs2017 xcode4 etc."
+	print "Options:"
+	print "  --with-dx9       Enable dear imgui DirectX 9 example"
+	print "  --with-dx10      Enable dear imgui DirectX 10 example"
+	print "  --with-dx11      Enable dear imgui DirectX 11 example"
+	print "  --with-dx12      Enable dear imgui DirectX 12 example (vs2015+)"
+	print "  --with-glfw      Enable dear imgui GLFW examples"
+	print "  --with-sdl2      Enable dear imgui SDL2 examples"
+	print "  --with-vulkan    Enable dear imgui Vulkan example"
+    print "  --cc=clang       Compile with Clang"
+    print "  --cc=gcc         Compile with GCC"
+	print "Project and object files will be created in the build/ folder. You can delete your build/ folder at any time."
+	print ""
+end
+
+---------- OPTIONS
+
+newoption { trigger = "with-dx9",    description="Enable dear imgui DirectX 9 example" }
+newoption { trigger = "with-dx10",   description="Enable dear imgui DirectX 10 example" }
+newoption { trigger = "with-dx11",   description="Enable dear imgui DirectX 11 example" }
+newoption { trigger = "with-dx12",   description="Enable dear imgui DirectX 12 example" }
+newoption { trigger = "with-glfw",   description="Enable dear imgui GLFW examples" }
+newoption { trigger = "with-sdl2",   description="Enable dear imgui SDL2 examples" }
+newoption { trigger = "with-vulkan", description="Enable dear imgui Vulkan example" }
+
+-- Enable/detect default options under Windows
+if _ACTION ~= nil and ((os.istarget ~= nil and os.istarget("windows")) or (os.is ~= nil and os.is("windows"))) then
+	print("( enabling --with-dx9 )");
+	print("( enabling --with-dx10 )");
+	print("( enabling --with-dx11 )");
+	_OPTIONS["with-dx9"] = 1
+	_OPTIONS["with-dx10"] = 1
+	_OPTIONS["with-dx11"] = 1
+	if _ACTION >= "vs2015" then
+		print("( enabling --with-dx12 because compiler is " .. _ACTION .. " )");
+		_OPTIONS["with-dx12"] = 1
+	end
+	print("( enabling --with-glfw because GLFW is included in the libs/ folder )");
+	_OPTIONS["with-glfw"] = 1
+	if os.getenv("SDL2_DIR") then
+		print("( enabling --with-sdl2 because SDL2_DIR environment variable was found )");
+		_OPTIONS["with-sdl2"] = 1
+	end
+	if os.getenv("VULKAN_SDK") then
+		print("( enabling --with-vulkan because VULKAN_SDK environment variable was found )");
+		_OPTIONS["with-vulkan"] = 1
+	end
+end
+
+
+--------- HELPER FUNCTIONS
+
+-- Helper function: add dear imgui source files into project
+function imgui_as_src(fs_path, project_path)
+	if (project_path == nil) then project_path = fs_path; end;	        -- default to same virtual folder as the file system folder (in this project it would be ".." !)
+
+	files { fs_path .. "/*.cpp", fs_path .. "/*.h" }
+	includedirs { fs_path, fs_path .. "/backends" }
+	vpaths { [project_path] = { fs_path .. "/*.*", fs_path .. "/misc/debuggers/*.natvis" } }  -- add in a specific folder of the Visual Studio project
+	filter { "toolset:msc*" }
+		files { fs_path .. "/misc/debuggers/*.natvis" }
+	filter {}
+end
+
+-- Helper function: add dear imgui as a library (uncomment the 'include "premake5-lib"' line)
+--include "premake5-lib"
+function imgui_as_lib(fs_path)
+	includedirs { fs_path, fs_path .. "/backends" }
+	links "imgui"
+end
+
+--------- SOLUTION, PROJECTS
+
+workspace "imgui_examples"
+	configurations { "Debug", "Release" }
+	platforms { "x86", "x86_64" }
+
+	location "build/"
+	symbols "On"
+	warnings "Extra"
+	--flags { "FatalCompileWarnings"}
+
+	filter { "configurations:Debug" }
+		optimize "Off"
+	filter { "configurations:Release" }
+		optimize "On"
+    filter { "toolset:clang", "system:windows" }
+        buildoptions { "-Xclang", "-flto-visibility-public-std" }   -- Remove "warning LNK4049: locally defined symbol ___std_terminate imported"
+
+-- example_win32_directx11 (Win32 + DirectX 11)
+-- We have DX11 as the first project because this is what Visual Studio uses
+if (_OPTIONS["with-dx11"]) then
+	project "example_win32_directx11"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		files { "../backends/imgui_impl_win32.*", "../backends/imgui_impl_dx11.*", "example_win32_directx11/*.cpp", "example_win32_directx11/*.h", "README.txt" }
+        vpaths { ["sources"] = "./**" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100" }
+			includedirs { "$(DXSDK_DIR)/Include" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100", "platforms:x86" }
+			libdirs { "$(DXSDK_DIR)/Lib/x86" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100", "platforms:x86_64" }
+			libdirs { "$(DXSDK_DIR)/Lib/x64" }
+		filter { "system:windows" }
+			links { "d3d11", "d3dcompiler", "dxgi" }
+end
+
+-- example_win32_directx9 (Win32 + DirectX 9)
+if (_OPTIONS["with-dx9"]) then
+	project "example_win32_directx9"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		files { "../backends/imgui_impl_win32.*", "../backends/imgui_impl_dx9.*", "example_win32_directx9/*.cpp", "example_win32_directx9/*.h", "README.txt" }
+        vpaths { ["sources"] = "./**" }
+		filter { "system:windows" }
+			links { "d3d9" }
+end
+
+-- example_win32_directx10 (Win32 + DirectX 10)
+if (_OPTIONS["with-dx10"]) then
+	project "example_win32_directx10"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		files { "../backends/imgui_impl_win32.*", "../backends/imgui_impl_dx10.*", "example_win32_directx10/*.cpp", "example_win32_directx10/*.h", "README.txt" }
+        vpaths { ["sources"] = "./**" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100" }
+			includedirs { "$(DXSDK_DIR)/Include" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100", "platforms:x86" }
+			libdirs { "$(DXSDK_DIR)/Lib/x86" }
+		filter { "system:windows", "toolset:msc-v80 or msc-v90 or msc-v100", "platforms:x86_64" }
+			libdirs { "$(DXSDK_DIR)/Lib/x64" }
+		filter { "system:windows" }
+			links { "d3d10", "d3dcompiler", "dxgi" }
+end
+
+-- example_win32_directx12 (Win32 + DirectX 12)
+if (_OPTIONS["with-dx12"]) then
+	project "example_win32_directx12"
+		kind "ConsoleApp"
+		systemversion "10.0.16299.0"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		files { "../backends/imgui_impl_win32.*", "../backends/imgui_impl_dx12.*", "example_win32_directx12/*.cpp", "example_win32_directx12/*.h", "README.txt" }
+        vpaths { ["sources"] = "./**" }
+		filter { "system:windows" }
+			links { "d3d12", "d3dcompiler", "dxgi" }
+end
+
+-- example_glfw_opengl2 (GLFW + OpenGL2)
+if (_OPTIONS["with-glfw"]) then
+	project "example_glfw_opengl2"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		files { "../backends/imgui_impl_glfw.*", "../backends/imgui_impl_opengl2.*", "example_glfw_opengl2/*.h", "example_glfw_opengl2/*.cpp", "README.txt"}
+        vpaths { ["sources"] = "./**" }
+		includedirs { "libs/glfw/include" }
+		filter { "system:windows", "platforms:x86" }
+			libdirs { "libs/glfw/lib-vc2010-32" }
+		filter { "system:windows", "platforms:x86_64" }
+			libdirs { "libs/glfw/lib-vc2010-64" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+			links { "opengl32", "glfw3" }
+		filter { "system:linux" }
+			links { "glfw3" }
+		filter { "system:macosx" }
+			libdirs { "/usr/local/lib" }
+			links { "glfw" }
+			linkoptions { "-framework OpenGL" }
+end
+
+-- example_glfw_opengl3 (GLFW + OpenGL3)
+if (_OPTIONS["with-glfw"]) then
+	project "example_glfw_opengl3"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+		files { "../backends/imgui_impl_glfw.*", "../backends/imgui_impl_opengl3.*", "example_glfw_opengl3/*.h", "example_glfw_opengl3/*.cpp", "./README.txt" }
+		includedirs { "libs/glfw/include" }
+		filter { "system:windows", "platforms:x86" }
+			libdirs { "libs/glfw/lib-vc2010-32" }
+		filter { "system:windows", "platforms:x86_64" }
+			libdirs { "libs/glfw/lib-vc2010-64" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+			links { "opengl32", "glfw3" }
+		filter { "system:linux" }
+			links { "glfw3" }
+		filter { "system:macosx" }
+			libdirs { "/usr/local/lib" }
+			links { "glfw" }
+			linkoptions { "-framework OpenGL" }
+end
+
+-- example_glfw_vulkan (GLFW + Vulkan)
+if (_OPTIONS["with-vulkan"]) then
+    project "example_glfw_vulkan"
+        kind "ConsoleApp"
+        imgui_as_src ("..", "imgui")
+        --imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+        files { "../backends/imgui_impl_glfw*", "../backends/imgui_impl_vulkan.*", "example_glfw_vulkan/*.h", "example_glfw_vulkan/*.cpp", "./README.txt" }
+        includedirs { "libs/glfw/include", "%VULKAN_SDK%/include" }
+        filter { "system:windows", "platforms:x86" }
+            libdirs { "libs/glfw/lib-vc2010-32", "%VULKAN_SDK%/lib32" }
+        filter { "system:windows", "platforms:x86_64" }
+            libdirs { "libs/glfw/lib-vc2010-64", "%VULKAN_SDK%/lib" }
+        filter { "system:windows" }
+            ignoredefaultlibraries { "msvcrt" }
+            links { "vulkan-1", "glfw3" }
+		filter { "system:linux" }
+			links { "glfw3" } -- FIXME: missing Vulkan. missing macosx version
+end
+
+-- example_null (no rendering)
+if (true) then
+	project "example_null"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+		files { "example_null/*.h", "example_null/*.cpp", "./README.txt" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+end
+
+-- example_sdl2_sdlrenderer2 (SDL2 + SDL_Renderer)
+if (_OPTIONS["with-sdl2"]) then
+	project "example_sdl2_sdlrenderer2"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+		vpaths { ["sources"] = "./**" }
+		files { "../backends/imgui_impl_sdl2*", "../backends/imgui_impl_sdlrenderer2.*", "example_sdl2_sdlrenderer2/*.h", "example_sdl2_sdlrenderer2/*.cpp", "./README.txt" }
+		includedirs { "%SDL2_DIR%/include" }
+		filter { "system:windows", "platforms:x86" }
+			libdirs { "%SDL2_DIR%/lib/x86" }
+		filter { "system:windows", "platforms:x86_64" }
+			libdirs { "%SDL2_DIR%/lib/x64" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+			links { "SDL2", "SDL2main" }
+end
+
+-- example_sdl2_opengl2 (SDL2 + OpenGL2)
+if (_OPTIONS["with-sdl2"]) then
+	project "example_sdl2_opengl2"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+		files { "../backends/imgui_impl_sdl2*", "../backends/imgui_impl_opengl2.*", "example_sdl2_opengl2/*.h", "example_sdl2_opengl2/*.cpp", "./README.txt" }
+		includedirs { "%SDL2_DIR%/include" }
+		filter { "system:windows", "platforms:x86" }
+			libdirs { "%SDL2_DIR%/lib/x86" }
+		filter { "system:windows", "platforms:x86_64" }
+			libdirs { "%SDL2_DIR%/lib/x64" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+			links { "SDL2", "SDL2main", "opengl32" }
+end
+
+-- example_sdl2_opengl3 (SDL2 + OpenGL3)
+if (_OPTIONS["with-sdl2"]) then
+	project "example_sdl2_opengl3"
+		kind "ConsoleApp"
+		imgui_as_src ("..", "imgui")
+		--imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+		files { "../backends/imgui_impl_sdl2*", "../backends/imgui_impl_opengl3.*", "example_sdl2_opengl3/*.h", "example_sdl2_opengl3/*.cpp", "./README.txt" }
+		includedirs { "%SDL2_DIR%/include" }
+		filter { "system:windows", "platforms:x86" }
+			libdirs { "%SDL2_DIR%/lib/x86" }
+		filter { "system:windows", "platforms:x86_64" }
+			libdirs { "%SDL2_DIR%/lib/x64" }
+		filter { "system:windows" }
+			ignoredefaultlibraries { "msvcrt" }
+			links { "SDL2", "SDL2main", "opengl32" }
+end
+
+-- example_sdl2_vulkan (SDL2 + Vulkan)
+if (_OPTIONS["with-sdl2"] and _OPTIONS["with-vulkan"]) then
+    project "example_sdl2_vulkan"
+        kind "ConsoleApp"
+        imgui_as_src ("..", "imgui")
+        --imgui_as_lib ("..")
+        vpaths { ["sources"] = "./**" }
+        files { "../backends/imgui_impl_sdl2*", "../backends/imgui_impl_vulkan.*", "example_sdl2_vulkan/*.h", "example_sdl2_vulkan/*.cpp", "./README.txt" }
+        includedirs { "%SDL2_DIR%/include", "%VULKAN_SDK%/include" }
+        filter { "system:windows", "platforms:x86" }
+            libdirs { "%SDL2_DIR%/lib/x86", "%VULKAN_SDK%/lib32" }
+        filter { "system:windows", "platforms:x86_64" }
+            libdirs { "%SDL2_DIR%/lib/x64", "%VULKAN_SDK%/lib" }
+        filter { "system:windows" }
+            ignoredefaultlibraries { "msvcrt" }
+            links { "SDL2", "SDL2main", "vulkan-1" }
+end

imgui.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (main code and documentation)
 
 // Help:
@@ -395,6 +395,10 @@ IMPLEMENTING SUPPORT for ImGuiBackendFlags_RendererHasTextures:
  When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
+ - 2026/04/23 (1.92.8) - Obsoleted `ImDrawCallback_ResetRenderState` in favor of using `ImGui::GetPlatformIO().DrawCallback_ResetRenderState`, which is part of our new standard draw callbacks. (#9378)
+ - 2026/04/22 (1.92.8) - Backends: Vulkan: redesigned to use separate ImageView + Sampler instead of Combined Image Sampler.
+                         - When registering custom textures: changed ImGui_ImplVulkan_AddTexture() signature to remove Sampler.
+                         - When creating your own descriptor pool (instead of letting backend creates its own): need at least IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE + IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE descriptors of type VK_DESCRIPTOR_TYPE_SAMPLER.
  - 2026/03/19 (1.92.7) - MultiSelect: renamed ImGuiMultiSelectFlags_SelectOnClick to ImGuiMultiSelectFlags_SelectOnAuto.
  - 2026/02/26 (1.92.7) - Separator: fixed a legacy quirk where Separator() was submitting a zero-height item for layout purpose, even though it draws a 1-pixel separator.
                          The fix could affect code e.g. computing height from multiple widgets in order to allocate vertical space for a footer or multi-line status bar. (#2657, #9263)
@@ -1495,7 +1499,7 @@ ImGuiStyle::ImGuiStyle()
     TabRounding                 = 5.0f;             // Radius of upper corners of a tab. Set to 0.0f to have rectangular tabs.
     TabBorderSize               = 0.0f;             // Thickness of border around tabs.
     TabMinWidthBase             = 1.0f;             // Minimum tab width, to make tabs larger than their contents. TabBar buttons are not affected.
-    TabMinWidthShrink           = 80.0f;            // Minimum tab width after shrinking, when using ImGuiTabBarFlags_FittingPolicyMixed policy.
+    TabMinWidthShrink           = 80.0f;            // Minimum tab width after shrinking, when using ImGuiTabBarFlags_FittingPolicyMixed policy. FLT_MAX: never shrink, will behave like ImGuiTabBarFlags_FittingPolicyScroll.
     TabCloseButtonMinWidthSelected   = -1.0f;       // -1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width.
     TabCloseButtonMinWidthUnselected = 0.0f;        // -1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width. FLT_MAX: never show close button when unselected.
     TabBarBorderSize            = 1.0f;             // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
@@ -1542,6 +1546,7 @@ ImGuiStyle::ImGuiStyle()
 
 
 // Scale all spacing/padding/thickness values. Do not scale fonts.
+// Consider not calling this if your initial scale factor if <1.0.
 // Important: This operation is lossy because we round all sizes to integer. If you need to change your scale multiples, call this over a freshly initialized ImGuiStyle structure rather than scaling multiple times.
 void ImGuiStyle::ScaleAllSizes(float scale_factor)
 {
@@ -3387,9 +3392,6 @@ static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
     if (clipper->ItemsHeight <= 0.0f)
     {
         IM_ASSERT(data->StepNo == 1);
-        if (table)
-            IM_ASSERT(table->RowPosY1 == clipper->StartPosY && table->RowPosY2 == window->DC.CursorPos.y);
-
         bool affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision((float)clipper->StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y);
         if (affected_by_floating_point_precision)
         {
@@ -3403,7 +3405,14 @@ static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
         }
         if (clipper->ItemsHeight == 0.0f && clipper->ItemsCount == INT_MAX) // Accept that no item have been submitted if in indeterminate mode.
             return false;
-        IM_ASSERT(clipper->ItemsHeight > 0.0f && "Unable to calculate item height! First item hasn't moved the cursor vertically!");
+        if (clipper->ItemsHeight <= 0.0f)
+        {
+            IM_ASSERT_USER_ERROR(clipper->ItemsHeight > 0.0f, "ImGuiListClipper: Failed to calculate item height! First item hasn't been submitted by user code, or has not moved the cursor vertically!");
+            return false;
+        }
+        if (table)
+            IM_ASSERT(table->RowPosY1 == clipper->StartPosY && table->RowPosY2 == window->DC.CursorPos.y);
+
         calc_clipping = true;   // If item height had to be calculated, calculate clipping afterwards.
     }
 
@@ -3449,12 +3458,14 @@ static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
                 // FIXME: Selectable() use of half-ItemSpacing isn't consistent in matter of layout, as ItemAdd(bb) stray above ItemSize()'s CursorPos.
                 // RangeSelect's BoxSelect relies on comparing overlap of previous and current rectangle and is sensitive to that.
                 // As a workaround we currently half ItemSpacing worth on each side.
-                min_y -= g.Style.ItemSpacing.y;
-                max_y += g.Style.ItemSpacing.y;
+                float pad_y = g.Style.ItemSpacing.y;
+                min_y -= pad_y;
+                max_y += pad_y;
 
                 // Box-select on 2D area requires different clipping.
+                // (best adding pad_y here than in BeginBoxSelect() as we are closer to current state)
                 if (bs->UnclipMode)
-                    data->Ranges.push_back(ImGuiListClipperRange::FromPositions(bs->UnclipRect.Min.y, bs->UnclipRect.Max.y, 0, 0));
+                    data->Ranges.push_back(ImGuiListClipperRange::FromPositions(bs->UnclipRect.Min.y - pad_y, bs->UnclipRect.Max.y + pad_y, 0, 0));
             }
 
             // Add main visible range
@@ -3828,7 +3839,7 @@ void ImGui::RenderText(ImVec2 pos, const char* text, const char* text_end, bool
     else
     {
         if (!text_end)
-            text_end = text + ImStrlen(text); // FIXME-OPT
+            text_end = text + ImStrlen(text); // FIXME-OPT (not reached by our internal calls)
         text_display_end = text_end;
     }
 
@@ -3846,7 +3857,7 @@ void ImGui::RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end
     ImGuiWindow* window = g.CurrentWindow;
 
     if (!text_end)
-        text_end = text + ImStrlen(text); // FIXME-OPT
+        text_end = text + ImStrlen(text); // FIXME-OPT (not reached by our internal calls)
 
     if (text != text_end)
     {
@@ -4150,7 +4161,7 @@ ImGuiContext::ImGuiContext(ImFontAtlas* shared_font_atlas)
     IO.Fonts = shared_font_atlas ? shared_font_atlas : IM_NEW(ImFontAtlas)();
     if (shared_font_atlas == NULL)
         IO.Fonts->OwnerContext = this;
-    WithinEndChildID = 0;
+    WithinEndChildID = WithinEndPopupID = 0;
     TestEngine = NULL;
 
     InputEventsNextMouseSource = ImGuiMouseSource_Mouse;
@@ -6432,7 +6443,7 @@ bool ImGui::BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, I
     window_flags |= ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoTitleBar;
     window_flags |= (parent_window->Flags & ImGuiWindowFlags_NoMove); // Inherit the NoMove flag
     if (child_flags & (ImGuiChildFlags_AutoResizeX | ImGuiChildFlags_AutoResizeY | ImGuiChildFlags_AlwaysAutoResize))
-        window_flags |= ImGuiWindowFlags_AlwaysAutoResize;
+        window_flags |= ImGuiWindowFlags_AlwaysAutoResize; // FIXME: Would be sane to not make single-axis flag set this. (#9355)
     if ((child_flags & (ImGuiChildFlags_ResizeX | ImGuiChildFlags_ResizeY)) == 0)
         window_flags |= ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings;
 
@@ -6581,6 +6592,14 @@ void ImGui::EndChild()
     g.LogLinePosY = -FLT_MAX; // To enforce a carriage return
 }
 
+ImGuiWindow* ImGui::FindFrontMostVisibleChildWindow(ImGuiWindow* window)
+{
+    for (int n = window->DC.ChildWindows.Size - 1; n >= 0; n--)
+        if (IsWindowActiveAndVisible(window->DC.ChildWindows[n]))
+            return FindFrontMostVisibleChildWindow(window->DC.ChildWindows[n]);
+    return window;
+}
+
 static void SetWindowConditionAllowFlags(ImGuiWindow* window, ImGuiCond flags, bool enabled)
 {
     window->SetWindowPosAllowFlags       = enabled ? (window->SetWindowPosAllowFlags       | flags) : (window->SetWindowPosAllowFlags       & ~flags);
@@ -6744,8 +6763,8 @@ static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_cont
     const float decoration_h_without_scrollbars = window->DecoOuterSizeY1 + window->DecoOuterSizeY2 - window->ScrollbarSizes.y;
     ImVec2 size_pad = window->WindowPadding * 2.0f;
     ImVec2 size_desired;
-    size_desired[ImGuiAxis_X] = (axis_mask & 1) ? size_contents.x + size_pad.x + decoration_w_without_scrollbars : window->Size.x;
-    size_desired[ImGuiAxis_Y] = (axis_mask & 2) ? size_contents.y + size_pad.y + decoration_h_without_scrollbars : window->Size.y;
+    size_desired.x = (axis_mask & 1) ? size_contents.x + size_pad.x + decoration_w_without_scrollbars : window->Size.x;
+    size_desired.y = (axis_mask & 2) ? size_contents.y + size_pad.y + decoration_h_without_scrollbars : window->Size.y;
 
     // Determine maximum window size
     // Child windows are laid within their parent (unless they are also popups/menus) and thus have no restriction
@@ -6764,8 +6783,10 @@ static ImVec2 CalcWindowAutoFitSize(ImGuiWindow* window, const ImVec2& size_cont
         // When the window cannot fit all contents (either because of constraints, either because screen is too small),
         // we are growing the size on the other axis to compensate for expected scrollbar. FIXME: Might turn bigger than ViewportSize-WindowPadding.
         ImVec2 size_auto_fit_after_constraint = CalcWindowSizeAfterConstraint(window, size_auto_fit);
-        bool will_have_scrollbar_x = (size_auto_fit_after_constraint.x - size_pad.x - decoration_w_without_scrollbars < size_contents.x && !(window->Flags & ImGuiWindowFlags_NoScrollbar) && (window->Flags & ImGuiWindowFlags_HorizontalScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar);
-        bool will_have_scrollbar_y = (size_auto_fit_after_constraint.y - size_pad.y - decoration_h_without_scrollbars < size_contents.y && !(window->Flags & ImGuiWindowFlags_NoScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysVerticalScrollbar);
+        float size_contents_for_scrollbar_x = (axis_mask & 1) ? size_contents.x : window->ContentSize.x; // See #9352. In theory this should use same logic as `window->ScrollbarY = ...` codepath in Begin(). Needs some plumbling.
+        float size_contents_for_scrollbar_y = (axis_mask & 2) ? size_contents.y : window->ContentSize.y;
+        bool will_have_scrollbar_x = (size_auto_fit_after_constraint.x < size_contents_for_scrollbar_x + size_pad.x + decoration_w_without_scrollbars && !(window->Flags & ImGuiWindowFlags_NoScrollbar) && (window->Flags & ImGuiWindowFlags_HorizontalScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar);
+        bool will_have_scrollbar_y = (size_auto_fit_after_constraint.y < size_contents_for_scrollbar_y + size_pad.y + decoration_h_without_scrollbars && !(window->Flags & ImGuiWindowFlags_NoScrollbar)) || (window->Flags & ImGuiWindowFlags_AlwaysVerticalScrollbar);
         if (will_have_scrollbar_x)
             size_auto_fit.y += style.ScrollbarSize;
         if (will_have_scrollbar_y)
@@ -7844,12 +7865,12 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             ImVec2 avail_size_from_current_frame = ImVec2(window->SizeFull.x, window->SizeFull.y - (window->DecoOuterSizeY1 + window->DecoOuterSizeY2));
             ImVec2 avail_size_from_last_frame = window->InnerRect.GetSize() + scrollbar_sizes_from_last_frame;
             ImVec2 needed_size_from_last_frame = window_just_created ? ImVec2(0, 0) : window->ContentSize + window->WindowPadding * 2.0f;
-            float size_x_for_scrollbars = use_current_size_for_scrollbar_x ? avail_size_from_current_frame.x : avail_size_from_last_frame.x;
-            float size_y_for_scrollbars = use_current_size_for_scrollbar_y ? avail_size_from_current_frame.y : avail_size_from_last_frame.y;
+            float size_for_scrollbars_x = use_current_size_for_scrollbar_x ? avail_size_from_current_frame.x : avail_size_from_last_frame.x;
+            float size_for_scrollbars_y = use_current_size_for_scrollbar_y ? avail_size_from_current_frame.y : avail_size_from_last_frame.y;
             bool scrollbar_x_prev = window->ScrollbarX;
             //bool scrollbar_y_from_last_frame = window->ScrollbarY; // FIXME: May want to use that in the ScrollbarX expression? How many pros vs cons?
-            window->ScrollbarY = (flags & ImGuiWindowFlags_AlwaysVerticalScrollbar) || ((needed_size_from_last_frame.y > size_y_for_scrollbars) && !(flags & ImGuiWindowFlags_NoScrollbar));
-            window->ScrollbarX = (flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar) || ((needed_size_from_last_frame.x > size_x_for_scrollbars - (window->ScrollbarY ? style.ScrollbarSize : 0.0f)) && !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar));
+            window->ScrollbarY = (flags & ImGuiWindowFlags_AlwaysVerticalScrollbar) || ((needed_size_from_last_frame.y > size_for_scrollbars_y) && !(flags & ImGuiWindowFlags_NoScrollbar));
+            window->ScrollbarX = (flags & ImGuiWindowFlags_AlwaysHorizontalScrollbar) || ((needed_size_from_last_frame.x > size_for_scrollbars_x - (window->ScrollbarY ? style.ScrollbarSize : 0.0f)) && !(flags & ImGuiWindowFlags_NoScrollbar) && (flags & ImGuiWindowFlags_HorizontalScrollbar));
 
             // Track when ScrollbarX visibility keeps toggling, which is a sign of a feedback loop, and stabilize by enforcing visibility (#3285, #8488)
             // (Feedback loops of this sort can manifest in various situations, but combining horizontal + vertical scrollbar + using a clipper with varying width items is one frequent cause.
@@ -7864,7 +7885,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             window->ScrollbarXStabilizeEnabled = scrollbar_x_stabilize;
 
             if (window->ScrollbarX && !window->ScrollbarY)
-                window->ScrollbarY = (needed_size_from_last_frame.y > size_y_for_scrollbars - style.ScrollbarSize) && !(flags & ImGuiWindowFlags_NoScrollbar);
+                window->ScrollbarY = (needed_size_from_last_frame.y > size_for_scrollbars_y - style.ScrollbarSize) && !(flags & ImGuiWindowFlags_NoScrollbar);
             window->ScrollbarSizes = ImVec2(window->ScrollbarY ? style.ScrollbarSize : 0.0f, window->ScrollbarX ? style.ScrollbarSize : 0.0f);
 
             // Amend the partially filled window->DecorationXXX values.
@@ -8029,9 +8050,14 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         window->DC.LayoutType = ImGuiLayoutType_Vertical;
         window->DC.ParentLayoutType = parent_window ? parent_window->DC.LayoutType : ImGuiLayoutType_Vertical;
 
-        // Default item width. Make it proportional to window size if window manually resizes
-        const bool is_resizable_window = (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize));
-        if (is_resizable_window)
+        // Default item width. Make it proportional to window size if window can be manually resized.
+        // (we cannot use AutoFitFramesX/AutoFitFramesY which is a temporary state)
+        bool is_resizable_width;
+        if (flags & ImGuiWindowFlags_ChildWindow)
+            is_resizable_width = (window->Size.x > 0.0f) && !(window->ChildFlags & (ImGuiChildFlags_AutoResizeX | ImGuiChildFlags_AlwaysAutoResize));
+        else
+            is_resizable_width = (window->Size.x > 0.0f) && !(flags & ImGuiWindowFlags_AlwaysAutoResize);
+        if (is_resizable_width)
             window->DC.ItemWidthDefault = ImTrunc(window->Size.x * 0.65f);
         else
             window->DC.ItemWidthDefault = ImTrunc(g.FontSize * 16.0f);
@@ -8201,6 +8227,8 @@ void ImGui::End()
     ImGuiWindowStackData& window_stack_data = g.CurrentWindowStack.back();
 
     // Error checking: verify that user doesn't directly call End() on a child window.
+    if (window->Flags & ImGuiWindowFlags_Popup)
+        IM_ASSERT_USER_ERROR(g.WithinEndPopupID == window->ID, "Must call EndPopup() and not End()!");
     if (window->Flags & ImGuiWindowFlags_ChildWindow)
         IM_ASSERT_USER_ERROR(g.WithinEndChildID == window->ID, "Must call EndChild() and not End()!");
 
@@ -8738,6 +8766,17 @@ void ImGui::PopFocusScope()
     g.CurrentFocusScopeId = g.FocusScopeStack.Size ? g.FocusScopeStack.back().ID : 0;
 }
 
+bool ImGui::IsInNavFocusRoute(ImGuiID focus_scope_id)
+{
+    ImGuiContext& g = *GImGui;
+    if (g.NavFocusScopeId == focus_scope_id)
+        return true;
+    for (const ImGuiFocusScopeData& focus_scope : g.NavFocusRoute)
+        if (focus_scope.ID == focus_scope_id)
+            return true;
+    return false;
+}
+
 void ImGui::SetNavFocusScope(ImGuiID focus_scope_id)
 {
     ImGuiContext& g = *GImGui;
@@ -9094,7 +9133,7 @@ void ImGui::UpdateCurrentFontSize(float restore_font_size_after_scaling)
     }
 
     g.FontBaked = (g.Font != NULL && window != NULL) ? g.Font->GetFontBaked(final_size) : NULL;
-    g.FontBakedScale = (g.Font != NULL && window != NULL) ? (g.FontSize / g.FontBaked->Size) : 0.0f;
+    g.FontBakedScale = (g.FontBaked != NULL) ? (g.FontSize / g.FontBaked->Size) : 0.0f;
     g.DrawListSharedData.FontScale = g.FontBakedScale;
 }
 
@@ -10804,7 +10843,8 @@ bool ImGui::DebugCheckVersionAndDataLayout(const char* version, size_t sz_io, si
 // to extend contents size of our parent container (e.g. window contents size, which is used for auto-resizing
 // windows, table column contents size used for auto-resizing columns, group size).
 // This was causing issues and ambiguities and we needed to retire that.
-// From 1.89, extending contents size boundaries REQUIRES AN ITEM TO BE SUBMITTED.
+// 2022/08/05 (1.89): extending contents size boundaries REQUIRES AN ITEM TO BE SUBMITTED. However we gated the new logic behind a '#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS' block.
+// 2025/06/25 (1.92): removed the legacy path and turned into an assert. It was a mistake that there was a #ifndef before: our obsolescence schedule gets pushed back a bit more :(
 //
 //  Previously this would make the window content size ~200x200:
 //    Begin(...) + SetCursorScreenPos(GetCursorScreenPos() + ImVec2(200,200)) + End();                      // NOT OK ANYMORE
@@ -12485,10 +12525,13 @@ void ImGui::EndPopup()
         NavMoveRequestTryWrapping(window, ImGuiNavMoveFlags_LoopY);
 
     // Child-popups don't need to be laid out
+    const ImGuiID backup_within_end_popup_id = g.WithinEndPopupID;
     const ImGuiID backup_within_end_child_id = g.WithinEndChildID;
+    g.WithinEndPopupID = window->ID;
     if (window->Flags & ImGuiWindowFlags_ChildWindow)
         g.WithinEndChildID = window->ID;
     End();
+    g.WithinEndPopupID = backup_within_end_popup_id;
     g.WithinEndChildID = backup_within_end_child_id;
 }
 
@@ -13310,7 +13353,7 @@ static void ImGui::NavProcessItem()
     const ImGuiID id = g.LastItemData.ID;
     const ImGuiItemFlags item_flags = g.LastItemData.ItemFlags;
 
-    // When inside a container that isn't scrollable with Left<>Right, clip NavRect accordingly (#2221, #8816)
+    // When inside a container that isn't scrollable with Left<>Right, clip NavRect accordingly (#2221, #8816, #7994)
     ImRect nav_bb = g.LastItemData.NavRect;
     if (window->DC.NavIsScrollPushableX == false)
     {
@@ -15774,6 +15817,7 @@ void ImGuiPlatformIO::ClearRendererHandlers()
 {
     Renderer_TextureMaxWidth = Renderer_TextureMaxHeight = 0;
     Renderer_RenderState = NULL;
+    DrawCallback_ResetRenderState = DrawCallback_SetSamplerLinear = DrawCallback_SetSamplerNearest = NULL;
 }
 
 ImGuiViewport* ImGui::GetMainViewport()

imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (headers)
 
 // Help:
@@ -29,8 +29,8 @@
 
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
-#define IMGUI_VERSION       "1.92.7"
-#define IMGUI_VERSION_NUM   19270
+#define IMGUI_VERSION       "1.92.8 WIP"
+#define IMGUI_VERSION_NUM   19274
 #define IMGUI_HAS_TABLE             // Added BeginTable() - from IMGUI_VERSION_NUM >= 18000
 #define IMGUI_HAS_TEXTURES          // Added ImGuiBackendFlags_RendererHasTextures - from IMGUI_VERSION_NUM >= 19198
 
@@ -1401,7 +1401,7 @@ enum ImGuiTabBarFlags_
     ImGuiTabBarFlags_DrawSelectedOverline           = 1 << 6,   // Draw selected overline markers over selected tab
 
     // Fitting/Resize policy
-    ImGuiTabBarFlags_FittingPolicyMixed             = 1 << 7,   // Shrink down tabs when they don't fit, until width is style.TabMinWidthShrink, then enable scrolling buttons.
+    ImGuiTabBarFlags_FittingPolicyMixed             = 1 << 7,   // Shrink down tabs when they don't fit, until width is style.TabMinWidthShrink, then enable scrolling. Setting TabMinWidthShrink to FLT_MAX makes this behave like ImGuiTabBarFlags_FittingPolicyScroll.
     ImGuiTabBarFlags_FittingPolicyShrink            = 1 << 8,   // Shrink down tabs when they don't fit
     ImGuiTabBarFlags_FittingPolicyScroll            = 1 << 9,   // Enable scrolling buttons when tabs don't fit
     ImGuiTabBarFlags_FittingPolicyMask_             = ImGuiTabBarFlags_FittingPolicyMixed | ImGuiTabBarFlags_FittingPolicyShrink | ImGuiTabBarFlags_FittingPolicyScroll,
@@ -2319,7 +2319,7 @@ struct ImGuiStyle
     float       TabBorderSize;              // Thickness of border around tabs.
     float       TabMinWidthBase;            // Minimum tab width, to make tabs larger than their contents. TabBar buttons are not affected.
     float       TabMinWidthShrink;          // Minimum tab width after shrinking, when using ImGuiTabBarFlags_FittingPolicyMixed policy.
-    float       TabCloseButtonMinWidthSelected;     // -1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width.
+    float       TabCloseButtonMinWidthSelected;     // -1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width. FLT_MAX: never shrink, will behave like ImGuiTabBarFlags_FittingPolicyScroll.
     float       TabCloseButtonMinWidthUnselected;   // -1: always visible. 0.0f: visible when hovered. >0.0f: visible when hovered if minimum width. FLT_MAX: never show close button when unselected.
     float       TabBarBorderSize;           // Thickness of tab-bar separator, which takes on the tab active color to denote focus.
     float       TabBarOverlineSize;         // Thickness of tab-bar overline, which highlights the selected tab-bar.
@@ -2335,7 +2335,7 @@ struct ImGuiStyle
     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.
-    float       SeparatorSize;              // Thickness of border in Separator()
+    float       SeparatorSize;              // Thickness of border in Separator(). Must be >= 1.0f.
     float       SeparatorTextBorderSize;    // Thickness of border in SeparatorText()
     ImVec2      SeparatorTextAlign;         // Alignment of text within the separator. Defaults to (0.0f, 0.5f) (left aligned, center).
     ImVec2      SeparatorTextPadding;       // Horizontal offset of text from each edge of the separator + spacing on other axis. Generally small values. .y is recommended to be == FramePadding.y.
@@ -2365,7 +2365,7 @@ struct ImGuiStyle
 
     // Functions
     IMGUI_API   ImGuiStyle();
-    IMGUI_API   void ScaleAllSizes(float scale_factor); // Scale all spacing/padding/thickness values. Do not scale fonts.
+    IMGUI_API   void ScaleAllSizes(float scale_factor); // Scale all spacing/padding/thickness values. Do not scale fonts. See comments in definition. Consider not calling this if your initial scale factor if <1.0.
 
     // Obsolete names
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
@@ -2642,7 +2642,7 @@ struct ImGuiInputTextCallbackData
     ImGuiInputTextFlags EventFlag;      // One ImGuiInputTextFlags_Callback*    // Read-only
     ImGuiInputTextFlags Flags;          // What user passed to InputText()      // Read-only
     void*               UserData;       // What user passed to InputText()      // Read-only
-    ImGuiID             ID;             // Widget ID                             // Read-only
+    ImGuiID             ID;             // Widget ID                            // Read-only
 
     // Arguments for the different callback events
     // - During Resize callback, Buf will be same as your input buffer.
@@ -2656,9 +2656,9 @@ struct ImGuiInputTextCallbackData
     char*               Buf;            // Text buffer                          // Read-write   // [Resize] Can replace pointer / [Completion,History,Always] Only write to pointed data, don't replace the actual pointer!
     int                 BufTextLen;     // Text length (in bytes)               // Read-write   // [Resize,Completion,History,Always] Exclude zero-terminator storage. In C land: == strlen(some_text), in C++ land: string.length()
     int                 BufSize;        // Buffer size (in bytes) = capacity+1  // Read-only    // [Resize,Completion,History,Always] Include zero-terminator storage. In C land: == ARRAYSIZE(my_char_array), in C++ land: string.capacity()+1
-    int                 CursorPos;      //                                      // Read-write   // [Completion,History,Always]
-    int                 SelectionStart; //                                      // Read-write   // [Completion,History,Always] == to SelectionEnd when no selection
-    int                 SelectionEnd;   //                                      // Read-write   // [Completion,History,Always]
+    int                 CursorPos;      //                                      // Read-write   // [Completion,History,Always,CharFilter]
+    int                 SelectionStart; //                                      // Read-write   // [Completion,History,Always,CharFilter] == to SelectionEnd when no selection
+    int                 SelectionEnd;   //                                      // Read-write   // [Completion,History,Always,CharFilter]
 
     // Helper functions for text manipulation.
     // Use those function to benefit from the CallbackResize behaviors. Calling those function reset the selection.
@@ -3166,12 +3166,6 @@ typedef unsigned short ImDrawIdx;   // Default: 16-bit (for maximum compatibilit
 typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* cmd);
 #endif
 
-// Special Draw callback value to request renderer backend to reset the graphics/render state.
-// The renderer backend needs to handle this special value, otherwise it will crash trying to call a function at this address.
-// This is useful, for example, if you submitted callbacks which you know have altered the render state and you want it to be restored.
-// Render state is not reset by default because they are many perfectly useful way of altering render state (e.g. changing shader/blending settings before an Image call).
-#define ImDrawCallback_ResetRenderState     (ImDrawCallback)(-8)
-
 // Typically, 1 command = 1 GPU draw call (unless command is a callback)
 // - VtxOffset: When 'io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset' is enabled,
 //   this fields allow us to render meshes larger than 64K vertices while keeping 16-bit indices.
@@ -3378,14 +3372,15 @@ struct ImDrawList
 
     // Advanced: Draw Callbacks
     // - May be used to alter render state (change sampler, blending, current shader). May be used to emit custom rendering commands (difficult to do correctly, but possible).
-    // - Use special ImDrawCallback_ResetRenderState callback to instruct backend to reset its render state to the default.
+    // - Use special GetPlatformIO().DrawCallback_ResetRenderState callback to instruct backend to reset its render state to the default.
+    // - See other standard callbacks in GetPlatformIO(), which may or not be supported by your backend.
     // - Your rendering loop must check for 'UserCallback' in ImDrawCmd and call the function instead of rendering triangles. All standard backends are honoring this.
     // - For some backends, the callback may access selected render-states exposed by the backend in a ImGui_ImplXXXX_RenderState structure pointed to by platform_io.Renderer_RenderState.
     // - IMPORTANT: please be mindful of the different level of indirection between using size==0 (copying argument) and using size>0 (copying pointed data into a buffer).
     //   - If userdata_size == 0: we copy/store the 'userdata' argument as-is. It will be available unmodified in ImDrawCmd::UserCallbackData during render.
     //   - If userdata_size > 0,  we copy/store 'userdata_size' bytes pointed to by 'userdata'. We store them in a buffer stored inside the drawlist. ImDrawCmd::UserCallbackData will point inside that buffer so you have to retrieve data from there. Your callback may need to use ImDrawCmd::UserCallbackDataSize if you expect dynamically-sized data.
     //   - Support for userdata_size > 0 was added in v1.91.4, October 2024. So earlier code always only allowed to copy/store a simple void*.
-    IMGUI_API void  AddCallback(ImDrawCallback callback, void* userdata, size_t userdata_size = 0);
+    IMGUI_API void  AddCallback(ImDrawCallback callback, void* userdata = NULL, size_t userdata_size = 0);
 
     // Advanced: Miscellaneous
     IMGUI_API void  AddDrawCmd();                                               // This is useful if you need to forcefully create a new draw call (to allow for dependent rendering / blending). Otherwise primitives are merged into the same draw-call as much as possible
@@ -3861,6 +3856,7 @@ enum ImFontFlags_
     ImFontFlags_NoLoadError             = 1 << 1,   // Disable throwing an error/assert when calling AddFontXXX() with missing file/data. Calling code is expected to check AddFontXXX() return value.
     ImFontFlags_NoLoadGlyphs            = 1 << 2,   // [Internal] Disable loading new glyphs.
     ImFontFlags_LockBakedSizes          = 1 << 3,   // [Internal] Disable loading new baked sizes, disable garbage collecting current ones. e.g. if you want to lock a font to a single size. Important: if you use this to preload given sizes, consider the possibility of multiple font density used on Retina display.
+    ImFontFlags_ImplicitRefSize         = 1 << 4,   // [Internal] Reference size was not set explicitly.
 };
 
 // Font runtime data and rendering
@@ -4021,6 +4017,12 @@ struct ImGuiPlatformIO
     // Written by some backends during ImGui_ImplXXXX_RenderDrawData() call to point backend_specific ImGui_ImplXXXX_RenderState* structure.
     void*       Renderer_RenderState;
 
+    // Standard draw callbacks
+    ImDrawCallback  DrawCallback_ResetRenderState;      // Request to reset the graphics/render state.
+    ImDrawCallback  DrawCallback_SetSamplerLinear;      // Request to set current texture sampling to Linear
+    ImDrawCallback  DrawCallback_SetSamplerNearest;     // Request to set current texture sampling to Nearest/Point
+    //ImDrawCallback  DrawCallback_SetSamplerCustom;    // Request to set current texture sampling using Backend Specific data.
+
     //------------------------------------------------------------------
     // Output
     //------------------------------------------------------------------
@@ -4149,6 +4151,8 @@ namespace ImGui
     //static inline void  SetScrollPosHere()                    { SetScrollHere(); }                                                // OBSOLETED in 1.42
 }
 
+#define ImDrawCallback_ResetRenderState     (ImDrawCallback)(-8)    // OBSOLETED in 1.92.8: Use ImGui::GetPlatformIO().DrawCallback_ResetRenderState
+
 //-- OBSOLETED in 1.92.0: ImFontAtlasCustomRect becomes ImTextureRect
 // - ImFontAtlasCustomRect::X,Y          --> ImTextureRect::x,y
 // - ImFontAtlasCustomRect::Width,Height --> ImTextureRect::w,h

imgui_demo.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (demo code)
 
 // Help:
@@ -10724,10 +10724,11 @@ struct ExampleAssetsBrowser
     bool            AllowBoxSelect = true;                  // Will set ImGuiMultiSelectFlags_BoxSelect2d
     bool            AllowBoxSelectInsideSelection = false;  // Will set ImGuiMultiSelectFlags_SelectOnClickAlways
     bool            AllowDragUnselected = false;            // Will set ImGuiMultiSelectFlags_SelectOnClickRelease
-    float           IconSize = 32.0f;
+    float           IconSize = 0;
     int             IconSpacing = 10;
-    int             IconHitSpacing = 4;         // Increase hit-spacing if you want to make it possible to clear or box-select from gaps. Some spacing is required to able to amend with Shift+box-select. Value is small in Explorer.
+    int             IconHitSpacing = 4;                     // Increase hit-spacing if you want to make it possible to clear or box-select from gaps. Some spacing is required to able to amend with Shift+box-select. Value is small in Explorer.
     bool            StretchSpacing = true;
+    bool            UseScrollX = false;                     // Debug: submit twice the number of items per line (overflow horizontally to exercise ScrollX + box-select)
 
     // State
     ImVector<ExampleAsset> Items;               // Our items
@@ -10778,12 +10779,15 @@ struct ExampleAssetsBrowser
         // Layout: calculate number of icon per line and number of lines
         LayoutItemSize = ImVec2(floorf(IconSize), floorf(IconSize));
         LayoutColumnCount = IM_MAX((int)(avail_width / (LayoutItemSize.x + LayoutItemSpacing)), 1);
-        LayoutLineCount = (Items.Size + LayoutColumnCount - 1) / LayoutColumnCount;
 
         // Layout: when stretching: allocate remaining space to more spacing. Round before division, so item_spacing may be non-integer.
         if (StretchSpacing && LayoutColumnCount > 1)
             LayoutItemSpacing = floorf(avail_width - LayoutItemSize.x * LayoutColumnCount) / LayoutColumnCount;
 
+        if (UseScrollX)
+            LayoutColumnCount *= 2;
+        LayoutLineCount = (Items.Size + LayoutColumnCount - 1) / LayoutColumnCount;
+
         LayoutItemStep = ImVec2(LayoutItemSize.x + LayoutItemSpacing, LayoutItemSize.y + LayoutItemSpacing);
         LayoutSelectableSpacing = IM_MAX(floorf(LayoutItemSpacing) - IconHitSpacing, 0.0f);
         LayoutOuterPadding = floorf(LayoutItemSpacing * 0.5f);
@@ -10791,6 +10795,9 @@ struct ExampleAssetsBrowser
 
     void Draw(const char* title, bool* p_open)
     {
+        if (IconSize <= 0.0f)
+            IconSize = ImGui::CalcTextSize("99999").x;
+
         ImGui::SetNextWindowSize(ImVec2(IconSize * 25, IconSize * 15), ImGuiCond_FirstUseEver);
         if (!ImGui::Begin(title, p_open, ImGuiWindowFlags_MenuBar))
         {
@@ -10840,6 +10847,7 @@ struct ExampleAssetsBrowser
                 ImGui::SliderInt("Icon Spacing", &IconSpacing, 0, 32);
                 ImGui::SliderInt("Icon Hit Spacing", &IconHitSpacing, 0, 32);
                 ImGui::Checkbox("Stretch Spacing", &StretchSpacing);
+                ImGui::Checkbox("Use ScrollX", &UseScrollX);
                 ImGui::PopItemWidth();
                 ImGui::EndMenu();
             }
@@ -10869,7 +10877,7 @@ struct ExampleAssetsBrowser
 
         ImGuiIO& io = ImGui::GetIO();
         ImGui::SetNextWindowContentSize(ImVec2(0.0f, LayoutOuterPadding + LayoutLineCount * (LayoutItemSize.y + LayoutItemSpacing)));
-        if (ImGui::BeginChild("Assets", ImVec2(0.0f, -ImGui::GetTextLineHeightWithSpacing()), ImGuiChildFlags_Borders, ImGuiWindowFlags_NoMove))
+        if (ImGui::BeginChild("Assets", ImVec2(0.0f, -ImGui::GetTextLineHeightWithSpacing()), ImGuiChildFlags_Borders, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_HorizontalScrollbar))
         {
             ImDrawList* draw_list = ImGui::GetWindowDrawList();
 
@@ -11013,6 +11021,8 @@ struct ExampleAssetsBrowser
                 }
             }
             clipper.End();
+            if (Items.Size == 0)
+                ImGui::Dummy(ImVec2(0, 0));
             ImGui::PopStyleVar(); // ImGuiStyleVar_ItemSpacing
 
             // Context menu

imgui_draw.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (drawing and font code)
 
 /*
@@ -528,9 +528,14 @@ void ImDrawList::_PopUnusedDrawCmd()
 
 void ImDrawList::AddCallback(ImDrawCallback callback, void* userdata, size_t userdata_size)
 {
+    IM_ASSERT(callback != NULL);
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    if (callback == ImDrawCallback_ResetRenderState && _Data->Context != NULL && _Data->Context->PlatformIO.DrawCallback_ResetRenderState != NULL)
+        callback = _Data->Context->PlatformIO.DrawCallback_ResetRenderState; // == ImGui::GetPlatformIO().DrawCallback_ResetRenderState
+#endif
+
     IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
     ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
-    IM_ASSERT(callback != NULL);
     IM_ASSERT(curr_cmd->UserCallback == NULL);
     if (curr_cmd->ElemCount != 0)
     {
@@ -662,7 +667,7 @@ void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool i
     if (intersect_with_current_clip_rect)
     {
         ImVec4 current = _CmdHeader.ClipRect;
-        if (cr.x < current.x) cr.x = current.x;
+        if (cr.x < current.x) cr.x = current.x; // = ClipWith(). Note that passing inverted range wouldn't be fixed here.
         if (cr.y < current.y) cr.y = current.y;
         if (cr.z > current.z) cr.z = current.z;
         if (cr.w > current.w) cr.w = current.w;
@@ -1432,35 +1437,21 @@ void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3,
     }
 }
 
-static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
-{
-    /*
-    IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    // Obsoleted in 1.82 (from February 2021). This code was stripped/simplified and mostly commented in 1.90 (from September 2023)
-    // - Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
-    if (flags == ~0)                    { return ImDrawFlags_RoundCornersAll; }
-    // - Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations). Read details in older version of this code.
-    if (flags >= 0x01 && flags <= 0x0F) { return (flags << 4); }
-    // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
-#endif
-    */
-    // If this assert triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
-    // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway.
-    // See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section.
-    IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
-
-    if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
-        flags |= ImDrawFlags_RoundCornersAll;
-
-    return flags;
-}
-
 void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
 {
     if (rounding >= 0.5f)
     {
-        flags = FixRectCornerFlags(flags);
+        // If this assert triggers on legacy code, please update your code replacing hardcoded values with ImDrawFlags_RoundCorners* values.
+        // - See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section.
+        // - Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway.
+        // - Marked obsolete in 1.82 and completely removed in 1.90:
+        //   - Hard coded support for ~0 == ImDrawFlags_RoundCornersAll.
+        //   - Hard coded support for values 0x01 to 0x0F (matching 15 out of 16 old flags combinations) --> see FixRectCornerFlags() in <1.90 code.
+        //   - Hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
+        IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
+        if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
+            flags |= ImDrawFlags_RoundCornersAll;
+
         rounding = ImMin(rounding, ImFabs(b.x - a.x) * (((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f) - 1.0f);
         rounding = ImMin(rounding, ImFabs(b.y - a.y) * (((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f) - 1.0f);
     }
@@ -1776,7 +1767,10 @@ void ImDrawList::AddImageRounded(ImTextureRef tex_ref, const ImVec2& p_min, cons
     if ((col & IM_COL32_A_MASK) == 0)
         return;
 
-    flags = FixRectCornerFlags(flags);
+    IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!"); // If this assert triggers on legacy code: see comments in ImDrawList::PathRect().
+    if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
+        flags |= ImDrawFlags_RoundCornersAll;
+
     if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
     {
         AddImage(tex_ref, p_min, p_max, uv_min, uv_max, col);
@@ -3050,7 +3044,7 @@ ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg_in)
     }
     else
     {
-        IM_ASSERT(Fonts.Size > 0 && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before.
+        IM_ASSERT(Fonts.Size > 0 && "Cannot use MergeMode for the first font!"); // When using MergeMode make sure that a font has already been added before.
         font = font_cfg_in->DstFont ? font_cfg_in->DstFont : Fonts.back();
         ImFontAtlasFontDiscardBakes(this, font, 0); // Need to discard bakes if the font was already used, because baked->FontLoaderDatas[] will change size. (#9162)
     }
@@ -3078,6 +3072,11 @@ ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg_in)
         IM_ASSERT(font_cfg->FontLoader->FontBakedLoadGlyph != NULL);
         IM_ASSERT(font_cfg->FontLoader->LoaderInit == NULL && font_cfg->FontLoader->LoaderShutdown == NULL); // FIXME-NEWATLAS: Unsupported yet.
     }
+    //                             | Target w/ Implicit RefSize | Target w/ Explicit RefSize |
+    // Adding w/ Implicit RefSize: | OK (same scale)            | OK (same scale)            |
+    // Adding w/ Explicit RefSize: | KO                         | OK (custom scale)          |
+    if (font_cfg_in->MergeMode && font_cfg_in->SizePixels > 0)
+        IM_ASSERT((font->Flags & ImFontFlags_ImplicitRefSize) == 0 && "Cannot use MergeMode with an explicit reference size when the destination font used an implicit reference size!");
     IM_ASSERT(font_cfg->FontLoaderData == NULL);
 
     if (!ImFontAtlasFontSourceInit(this, font_cfg))
@@ -3145,7 +3144,10 @@ ImFont* ImFontAtlas::AddFontDefaultBitmap(const ImFontConfig* font_cfg_template)
     if (!font_cfg_template)
         font_cfg.PixelSnapH = true; // Prevents sub-integer scaling factors at lower-level layers.
     if (font_cfg.SizePixels <= 0.0f)
+    {
         font_cfg.SizePixels = 13.0f; // This only serves (1) as a reference for GlyphOffset.y setting and (2) as a default for pre-1.92 backend.
+        font_cfg.Flags |= ImFontFlags_ImplicitRefSize;
+    }
     if (font_cfg.Name[0] == '\0')
         ImFormatString(font_cfg.Name, IM_COUNTOF(font_cfg.Name), "ProggyClean.ttf");
     font_cfg.EllipsisChar = (ImWchar)0x0085;
@@ -3170,7 +3172,10 @@ ImFont* ImFontAtlas::AddFontDefaultVector(const ImFontConfig* font_cfg_template)
     if (!font_cfg_template)
         font_cfg.PixelSnapH = true; // Precisely match ProggyClean, but prevents sub-integer scaling factors at lower-level layers.
     if (font_cfg.SizePixels <= 0.0f)
+    {
         font_cfg.SizePixels = 13.0f;
+        font_cfg.Flags |= ImFontFlags_ImplicitRefSize;
+    }
     if (font_cfg.Name[0] == '\0')
         ImFormatString(font_cfg.Name, IM_COUNTOF(font_cfg.Name), "ProggyForever.ttf");
     font_cfg.ExtraSizeScale *= 1.015f; // Match ProggyClean

imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (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.
@@ -252,6 +252,9 @@ extern IMGUI_API ImGuiContext* GImGui;  // Current implicit context pointer
 #define IMGUI_DEBUG_LOG_FONT(...)       do { ImGuiContext* g2 = GImGui; if (g2 && g2->DebugLogFlags & ImGuiDebugLogFlags_EventFont) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0) // Called from ImFontAtlas function which may operate without a context.
 #define IMGUI_DEBUG_LOG_INPUTROUTING(...) do{if (g.DebugLogFlags & ImGuiDebugLogFlags_EventInputRouting)IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
 
+// Debug options (also see ones on top of imgui.cpp)
+//#define IMGUI_DEBUG_BOXSELECT
+
 // Static Asserts
 #define IM_STATIC_ASSERT(_COND)         static_assert(_COND, "")
 
@@ -506,7 +509,8 @@ inline double ImRsqrt(double x)          { return 1.0 / sqrt(x); }
 template<typename T> T ImMin(T lhs, T rhs)                              { return lhs < rhs ? lhs : rhs; }
 template<typename T> T ImMax(T lhs, T rhs)                              { return lhs >= rhs ? lhs : rhs; }
 template<typename T> T ImClamp(T v, T mn, T mx)                         { return (v < mn) ? mn : (v > mx) ? mx : v; }
-template<typename T> T ImLerp(T a, T b, float t)                        { return (T)(a + (b - a) * t); }
+template<typename T> T ImLerp(double a, double b, float t)              { return (T)(a + (b - a) * (double)t); }
+template<typename T> T ImLerp(T a, T b, float t)                        { return (T)((float)a + (float)(b - a) * t); }
 template<typename T> void ImSwap(T& a, T& b)                            { T tmp = a; a = b; b = tmp; }
 template<typename T> T ImAddClampOverflow(T a, T b, T mn, T mx)         { if (b < 0 && (a < mn - b)) return mn; if (b > 0 && (a > mx - b)) return mx; return a + b; }
 template<typename T> T ImSubClampOverflow(T a, T b, T mn, T mx)         { if (b > 0 && (a < mn + b)) return mn; if (b < 0 && (a > mx + b)) return mx; return a - b; }
@@ -603,6 +607,8 @@ struct IMGUI_API ImRect
     bool        Overlaps(const ImRect& r) const     { return r.Min.y <  Max.y && r.Max.y >  Min.y && r.Min.x <  Max.x && r.Max.x >  Min.x; }
     void        Add(const ImVec2& p)                { if (Min.x > p.x)     Min.x = p.x;     if (Min.y > p.y)     Min.y = p.y;     if (Max.x < p.x)     Max.x = p.x;     if (Max.y < p.y)     Max.y = p.y; }
     void        Add(const ImRect& r)                { if (Min.x > r.Min.x) Min.x = r.Min.x; if (Min.y > r.Min.y) Min.y = r.Min.y; if (Max.x < r.Max.x) Max.x = r.Max.x; if (Max.y < r.Max.y) Max.y = r.Max.y; }
+    void        AddX(float x)                       { if (Min.x > x)       Min.x = x;       if (Max.x < x)       Max.x = x; }
+    void        AddY(float y)                       { if (Min.y > y)       Min.y = y;       if (Max.y < y)       Max.y = y; }
     void        Expand(const float amount)          { Min.x -= amount;   Min.y -= amount;   Max.x += amount;   Max.y += amount; }
     void        Expand(const ImVec2& amount)        { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
     void        Translate(const ImVec2& d)          { Min.x += d.x; Min.y += d.y; Max.x += d.x; Max.y += d.y; }
@@ -1890,6 +1896,7 @@ struct ImGuiBoxSelectState
     // Temporary/Transient data
     bool                    UnclipMode;         // (Temp/Transient, here in hot area). Set/cleared by the BeginMultiSelect()/EndMultiSelect() owning active box-select.
     ImRect                  UnclipRect;         // Rectangle where ItemAdd() clipping may be temporarily disabled. Need support by multi-select supporting widgets.
+    ImRect                  UnclipRects[2];     // Per-axis versions.
     ImRect                  BoxSelectRectPrev;  // Selection rectangle in absolute coordinates (derived every frame from BoxSelectStartPosRel and MousePos)
     ImRect                  BoxSelectRectCurr;
 
@@ -1912,7 +1919,8 @@ struct IMGUI_API ImGuiMultiSelectTempData
     ImGuiMultiSelectFlags   Flags;
     ImVec2                  ScopeRectMin;
     ImVec2                  BackupCursorMaxPos;
-    ImGuiSelectionUserData  LastSubmittedItem;  // Copy of last submitted item data, used to merge output ranges.
+    //ImGuiSelectionUserData CurrSubmittedItem; // Copy of last submitted item data, used to merge output ranges.
+    //ImGuiSelectionUserData PrevSubmittedItem; // Copy of previous submitted item data, used to merge output ranges.
     ImGuiID                 BoxSelectId;
     ImGuiKeyChord           KeyMods;
     ImS8                    LoopRequestSetAll;  // -1: no operation, 0: clear all, 1: select all.
@@ -2213,6 +2221,7 @@ struct ImGuiContext
     float                   CurrentDpiScale;                    // Current window/viewport DpiScale == CurrentViewport->DpiScale
     ImDrawListSharedData    DrawListSharedData;
     ImGuiID                 WithinEndChildID;                   // Set within EndChild()
+    ImGuiID                 WithinEndPopupID;                   // Set within EndPopup()
     void*                   TestEngine;                         // Test engine user data
 
     // Inputs
@@ -3320,6 +3329,7 @@ namespace ImGui
 
     // Childs
     IMGUI_API bool          BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, ImGuiChildFlags child_flags, ImGuiWindowFlags window_flags);
+    IMGUI_API ImGuiWindow*  FindFrontMostVisibleChildWindow(ImGuiWindow* window);
 
     // Popups, Modals
     IMGUI_API bool          BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_window_flags);
@@ -3473,6 +3483,7 @@ namespace ImGui
     // We don't use the ID Stack for this as it is common to want them separate.
     IMGUI_API void          PushFocusScope(ImGuiID id);
     IMGUI_API void          PopFocusScope();
+    IMGUI_API bool          IsInNavFocusRoute(ImGuiID focus_scope_id);
     inline ImGuiID          GetCurrentFocusScope() { ImGuiContext& g = *GImGui; return g.CurrentFocusScopeId; }   // Focus scope we are outputting into, set by PushFocusScope()
 
     // Drag and Drop
@@ -3539,6 +3550,7 @@ namespace ImGui
     IMGUI_API void          TableUpdateLayout(ImGuiTable* table);
     IMGUI_API void          TableUpdateBorders(ImGuiTable* table);
     IMGUI_API void          TableUpdateColumnsWeightFromWidth(ImGuiTable* table);
+    IMGUI_API void          TableApplyExternalUnclipRect(ImGuiTable* table, ImRect& rect);
     IMGUI_API void          TableDrawBorders(ImGuiTable* table);
     IMGUI_API void          TableDrawDefaultContextMenu(ImGuiTable* table, ImGuiTableFlags flags_for_section_to_display);
     IMGUI_API bool          TableBeginContextMenuPopup(ImGuiTable* table);

imgui_tables.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (tables and columns code)
 
 /*
@@ -240,6 +240,7 @@ Index of this file:
 #pragma GCC diagnostic ignored "-Wformat"                           // warning: format '%p' expects argument of type 'int'/'void*', but argument X has type 'unsigned int'/'ImGuiWindow*'
 #pragma GCC diagnostic ignored "-Wstrict-overflow"
 #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 "-Wconversion"                       // warning: conversion to 'xxxx' from 'xxxx' may change value
 #pragma GCC diagnostic ignored "-Wsign-conversion"                  // warning: conversion to 'xxxx' from 'xxxx' may change the sign of the result
 #endif
 
@@ -1315,14 +1316,32 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         table->InnerWindow->DecoInnerSizeY1 = table_instance->LastFrozenHeight;
     table_instance->LastFrozenHeight = 0.0f;
 
-    // Initial state
     ImGuiWindow* inner_window = table->InnerWindow;
+    ImGuiBoxSelectState* bs = &g.BoxSelectState;
+    if (bs->Window == inner_window && bs->UnclipMode)
+        TableApplyExternalUnclipRect(table, bs->UnclipRect);
+
+    // Initial state
     if (table->Flags & ImGuiTableFlags_NoClip)
         table->DrawSplitter->SetCurrentChannel(inner_window->DrawList, TABLE_DRAW_CHANNEL_NOCLIP);
     else
         inner_window->DrawList->PushClipRect(inner_window->InnerClipRect.Min, inner_window->InnerClipRect.Max, false); // FIXME: use table->InnerClipRect?
 }
 
+// When starting a BeginMultiSelect() after table has been layout we update IsRequestOutput fields.
+void ImGui::TableApplyExternalUnclipRect(ImGuiTable* table, ImRect& rect)
+{
+    if (rect.IsInverted())
+        return;
+    for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
+    {
+        ImGuiTableColumn* column = &table->Columns[column_n];
+        if (!column->IsRequestOutput)
+            if (rect.Overlaps(ImRect(column->MinX, table->WorkRect.Min.y, column->MaxX, FLT_MAX)))
+                column->IsRequestOutput = true;
+    }
+}
+
 // Process hit-testing on resizing borders. Actual size change will be applied in EndTable()
 // - Set table->HoveredColumnBorder with a short delay/timer to reduce visual feedback noise.
 void ImGui::TableUpdateBorders(ImGuiTable* table)
@@ -1436,12 +1455,12 @@ void    ImGui::EndTable()
     if (table->Flags & ImGuiTableFlags_ScrollX)
     {
         const float outer_padding_for_border = (table->Flags & ImGuiTableFlags_BordersOuterV) ? TABLE_BORDER_SIZE : 0.0f;
-        float max_pos_x = table->InnerWindow->DC.CursorMaxPos.x;
+        float max_pos_x = inner_window->DC.CursorMaxPos.x;
         if (table->RightMostEnabledColumn != -1)
             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;
+        inner_window->DC.CursorMaxPos.x = max_pos_x + table->TempData->AngledHeadersExtraWidth;
     }
 
     // Pop clipping rect
@@ -1550,7 +1569,7 @@ void    ImGui::EndTable()
     }
     else
     {
-        table->InnerWindow->DC.TreeDepth--;
+        inner_window->DC.TreeDepth--;
         ItemSize(table->OuterRect.GetSize());
         ItemAdd(table->OuterRect, 0);
     }
@@ -1565,13 +1584,12 @@ void    ImGui::EndTable()
     }
     else if (temp_data->UserOuterSize.x <= 0.0f)
     {
-        // Some references for this: #7651 + tests "table_reported_size", "table_reported_size_outer" equivalent Y block
-        // - Checking for ImGuiTableFlags_ScrollX/ScrollY flag makes us a frame ahead when disabling those flags.
-        // - FIXME-TABLE: Would make sense to pre-compute expected scrollbar visibility/sizes to generally save a frame of feedback.
-        const float inner_content_max_x = table->OuterRect.Min.x + table->ColumnsAutoFitWidth; // Slightly misleading name but used for code symmetry with inner_content_max_y
-        const float decoration_size = table->TempData->AngledHeadersExtraWidth + ((table->Flags & ImGuiTableFlags_ScrollY) ? inner_window->ScrollbarSizes.x : 0.0f);
-        outer_window->DC.IdealMaxPos.x = ImMax(outer_window->DC.IdealMaxPos.x, inner_content_max_x + decoration_size - temp_data->UserOuterSize.x);
-        outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, ImMin(table->OuterRect.Max.x, inner_content_max_x + decoration_size));
+        // Some references for this: #7651 + tests "table_reported_size", "table_reported_size_outer" equivalent Y block, #9352
+        // - FIXME-TABLE: Would make sense to pre-compute expected scrollbar visibility/sizes to generally save a frame of feedback? See broken test in 'table_reported_size_outer'
+        const float outer_content_max_x = table->OuterRect.Min.x + table->ColumnsAutoFitWidth;
+        const float decoration_size = table->TempData->AngledHeadersExtraWidth + ((inner_window != outer_window) ? inner_window->ScrollbarSizes.x : 0.0f);
+        outer_window->DC.IdealMaxPos.x = ImMax(outer_window->DC.IdealMaxPos.x, outer_content_max_x + decoration_size - temp_data->UserOuterSize.x);
+        outer_window->DC.CursorMaxPos.x = ImMax(backup_outer_max_pos.x, ImMin(table->OuterRect.Max.x, outer_content_max_x + decoration_size));
     }
     else
     {
@@ -1579,9 +1597,12 @@ void    ImGui::EndTable()
     }
     if (temp_data->UserOuterSize.y <= 0.0f)
     {
-        const float decoration_size = (table->Flags & ImGuiTableFlags_ScrollX) ? inner_window->ScrollbarSizes.y : 0.0f;
-        outer_window->DC.IdealMaxPos.y = ImMax(outer_window->DC.IdealMaxPos.y, inner_content_max_y + decoration_size - temp_data->UserOuterSize.y);
-        outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, ImMin(table->OuterRect.Max.y, inner_content_max_y + decoration_size));
+        // (same comment as above)
+        const float outer_content_size_y = (inner_window == outer_window) ? (inner_content_max_y - table->InnerRect.Min.y) : (inner_content_max_y - inner_window->DC.CursorStartPos.y);
+        const float outer_content_max_y = table->OuterRect.Min.y + outer_content_size_y;
+        const float decoration_size = (inner_window != outer_window ? inner_window->ScrollbarSizes.y : 0.0f);
+        outer_window->DC.IdealMaxPos.y = ImMax(outer_window->DC.IdealMaxPos.y, outer_content_max_y + decoration_size - temp_data->UserOuterSize.y);
+        outer_window->DC.CursorMaxPos.y = ImMax(backup_outer_max_pos.y, ImMin(table->OuterRect.Max.y, outer_content_max_y + decoration_size));
     }
     else
     {
@@ -1641,7 +1662,7 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
     ImGuiTable* table = g.CurrentTable;
     IM_ASSERT_USER_ERROR_RET(table != NULL, "Call should only be done while in BeginTable() scope!");
     IM_ASSERT_USER_ERROR_RET(table->DeclColumnsCount < table->ColumnsCount, "TableSetupColumn(): called too many times!");
-    IM_ASSERT_USER_ERROR_RET(table->IsLayoutLocked == false, "TableSetupColumn(): need to call before first row!");
+    IM_ASSERT_USER_ERROR_RET(table->IsLayoutLocked == false, "TableSetupColumn(): need to call before first row!"); // Table layout is locked when submitting a row or when calling BeginMultiSelect() with box-select.
     IM_ASSERT((flags & ImGuiTableColumnFlags_StatusMask_) == 0 && "Illegal to pass StatusMask values to TableSetupColumn()");
 
     ImGuiTableColumn* column = &table->Columns[table->DeclColumnsCount];
@@ -3174,7 +3195,7 @@ void ImGui::TableHeader(const char* label)
     if (label == NULL)
         label = "";
     const char* label_end = FindRenderedTextEnd(label);
-    ImVec2 label_size = CalcTextSize(label, label_end, true);
+    ImVec2 label_size = CalcTextSize(label, label_end, false);
     ImVec2 label_pos = window->DC.CursorPos;
 
     // If we already got a row height, there's use that.
@@ -3293,6 +3314,8 @@ void ImGui::TableHeader(const char* label)
     // We don't use BeginPopupContextItem() because we want the popup to stay up even after the column is hidden
     if (IsPopupOpenRequestForItem(ImGuiPopupFlags_None, id))
         TableOpenContextMenu(column_n);
+
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
 }
 
 // Unlike TableHeadersRow() it is not expected that you can reimplement or customize this with custom widgets.

imgui_widgets.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.92.7
+// dear imgui, v1.92.8 WIP
 // (widgets code)
 
 /*
@@ -92,6 +92,7 @@ Index of this file:
 #pragma GCC diagnostic ignored "-Wstrict-overflow"                  // warning: assuming signed overflow does not occur when simplifying division / ..when changing X +- C1 cmp C2 to X cmp C2 -+ C1
 #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 "-Wcast-qual"                        // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
+#pragma GCC diagnostic ignored "-Wconversion"                       // warning: conversion to 'xxxx' from 'xxxx' may change value
 #pragma GCC diagnostic ignored "-Wsign-conversion"                  // warning: conversion to 'xxxx' from 'xxxx' may change the sign of the result
 #endif
 
@@ -401,7 +402,8 @@ void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
     const char* value_text_begin, *value_text_end;
     ImFormatStringToTempBufferV(&value_text_begin, &value_text_end, fmt, args);
     const ImVec2 value_size = CalcTextSize(value_text_begin, value_text_end, false);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     const ImVec2 pos = window->DC.CursorPos;
     const ImRect value_bb(pos, pos + ImVec2(w, value_size.y + style.FramePadding.y * 2));
@@ -413,7 +415,7 @@ void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
     // Render
     RenderTextClipped(value_bb.Min + style.FramePadding, value_bb.Max, value_text_begin, value_text_end, &value_size, ImVec2(0.0f, 0.0f));
     if (label_size.x > 0.0f)
-        RenderText(ImVec2(value_bb.Max.x + style.ItemInnerSpacing.x, value_bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(value_bb.Max.x + style.ItemInnerSpacing.x, value_bb.Min.y + style.FramePadding.y), label, label_end, false);
 }
 
 void ImGui::BulletText(const char* fmt, ...)
@@ -788,7 +790,8 @@ bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = window->GetID(label);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     ImVec2 pos = window->DC.CursorPos;
     if ((flags & ImGuiButtonFlags_AlignTextBaseLine) && style.FramePadding.y < window->DC.CurrLineTextBaseOffset) // Try to vertically align buttons that are smaller/have no padding so that text baseline matches (bit hacky, since it shouldn't be a flag)
@@ -810,7 +813,7 @@ bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags
 
     if (g.LogEnabled)
         LogSetNextTextDecoration("[", "]");
-    RenderTextClipped(bb.Min + style.FramePadding, bb.Max - style.FramePadding, label, NULL, &label_size, style.ButtonTextAlign, &bb);
+    RenderTextClipped(bb.Min + style.FramePadding, bb.Max - style.FramePadding, label, label_end, &label_size, style.ButtonTextAlign, &bb);
 
     // Automatically close popups
     //if (pressed && !(flags & ImGuiButtonFlags_DontClosePopups) && (window->Flags & ImGuiWindowFlags_Popup))
@@ -975,7 +978,7 @@ ImRect ImGui::GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis)
     const float scrollbar_size = window->ScrollbarSizes[axis ^ 1]; // (ScrollbarSizes.x = width of Y scrollbar; ScrollbarSizes.y = height of X scrollbar)
     IM_ASSERT(scrollbar_size >= 0.0f);
     const float border_size = IM_ROUND(window->WindowBorderSize * 0.5f);
-    const float border_top = (window->Flags & ImGuiWindowFlags_MenuBar) ? IM_ROUND(g.Style.FrameBorderSize * 0.5f) : 0.0f;
+    const float border_top = (window->Flags & ImGuiWindowFlags_MenuBar) ? IM_ROUND(g.Style.FrameBorderSize * 0.5f) : (window->Flags & ImGuiWindowFlags_NoTitleBar) ? border_size : 0;
     if (axis == ImGuiAxis_X)
         return ImRect(inner_rect.Min.x + border_size, ImMax(outer_rect.Min.y + border_size, outer_rect.Max.y - border_size - scrollbar_size), inner_rect.Max.x - border_size, outer_rect.Max.y - border_size);
     else
@@ -1243,7 +1246,8 @@ bool ImGui::Checkbox(const char* label, bool* v)
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = window->GetID(label);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     const float square_sz = GetFrameHeight();
     const ImVec2 pos = window->DC.CursorPos;
@@ -1303,7 +1307,7 @@ bool ImGui::Checkbox(const char* label, bool* v)
     if (g.LogEnabled)
         LogRenderedText(&label_pos, mixed_value ? "[~]" : *v ? "[x]" : "[ ]");
     if (is_visible && label_size.x > 0.0f)
-        RenderText(label_pos, label);
+        RenderText(label_pos, label, label_end, false);
 
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | ImGuiItemStatusFlags_Checkable | (*v ? ImGuiItemStatusFlags_Checked : 0));
     return pressed;
@@ -1365,7 +1369,8 @@ bool ImGui::RadioButton(const char* label, bool active)
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = window->GetID(label);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     const float square_sz = GetFrameHeight();
     const ImVec2 pos = window->DC.CursorPos;
@@ -1404,7 +1409,7 @@ bool ImGui::RadioButton(const char* label, bool active)
     if (g.LogEnabled)
         LogRenderedText(&label_pos, active ? "(x)" : "( )");
     if (label_size.x > 0.0f)
-        RenderText(label_pos, label);
+        RenderText(label_pos, label, label_end, false);
 
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
     return pressed;
@@ -1520,7 +1525,7 @@ bool ImGui::TextLink(const char* label)
     const char* label_end = FindRenderedTextEnd(label);
 
     ImVec2 pos(window->DC.CursorPos.x, window->DC.CursorPos.y + window->DC.CurrLineTextBaseOffset);
-    ImVec2 size = CalcTextSize(label, label_end, true);
+    ImVec2 size = CalcTextSize(label, label_end, false);
     ImRect bb(pos, pos + size);
     ItemSize(size, 0.0f);
     if (!ItemAdd(bb, id))
@@ -1554,7 +1559,7 @@ bool ImGui::TextLink(const char* label)
     window->DrawList->AddLine(ImVec2(bb.Min.x, line_y), ImVec2(bb.Max.x, line_y), GetColorU32(line_colf), 1.0f * (float)(int)g.Style._MainScale); // FIXME-TEXT: Underline mode // FIXME-DPI
 
     PushStyleColor(ImGuiCol_Text, GetColorU32(text_colf));
-    RenderText(bb.Min, label, label_end);
+    RenderText(bb.Min, label, label_end, false);
     PopStyleColor();
 
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
@@ -1724,7 +1729,7 @@ void ImGui::Separator()
     if (window->DC.CurrentColumns)
         flags |= ImGuiSeparatorFlags_SpanAllColumns;
 
-    SeparatorEx(flags, g.Style.SeparatorSize);
+    SeparatorEx(flags, ImMax(g.Style.SeparatorSize, 1.0f));
 }
 
 void ImGui::SeparatorTextEx(ImGuiID id, const char* label, const char* label_end, float extra_w)
@@ -1944,8 +1949,9 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
         IM_ASSERT((flags & (ImGuiComboFlags_NoPreview | (ImGuiComboFlags)ImGuiComboFlags_CustomPreview)) == 0);
 
     const float arrow_size = (flags & ImGuiComboFlags_NoArrowButton) ? 0.0f : GetFrameHeight();
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
-    const float preview_width = ((flags & ImGuiComboFlags_WidthFitPreview) && (preview_value != NULL)) ? CalcTextSize(preview_value, NULL, true).x : 0.0f;
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
+    const float preview_width = ((flags & ImGuiComboFlags_WidthFitPreview) && (preview_value != NULL)) ? CalcTextSize(preview_value, NULL, false).x : 0.0f;
     const float w = (flags & ImGuiComboFlags_NoPreview) ? arrow_size : ((flags & ImGuiComboFlags_WidthFitPreview) ? (arrow_size + preview_width + style.FramePadding.x * 2.0f) : CalcItemWidth());
     const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
     const ImRect total_bb(bb.Min, bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
@@ -1996,7 +2002,7 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
         RenderTextClipped(bb.Min + style.FramePadding, ImVec2(value_x2, bb.Max.y), preview_value, NULL, NULL);
     }
     if (label_size.x > 0)
-        RenderText(ImVec2(bb.Max.x + style.ItemInnerSpacing.x, bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(bb.Max.x + style.ItemInnerSpacing.x, bb.Min.y + style.FramePadding.y), label, label_end, false);
 
     if (!popup_open)
         return false;
@@ -2709,7 +2715,8 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data,
     const float w = CalcItemWidth();
     const ImU32 color_marker = (g.NextItemData.HasFlags & ImGuiNextItemDataFlags_HasColorMarker) ? g.NextItemData.ColorMarker : 0;
 
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
     const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
     const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
 
@@ -2785,7 +2792,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data,
     RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
 
     if (label_size.x > 0.0f)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label, label_end, false);
 
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (temp_input_allowed ? ImGuiItemStatusFlags_Inputable : 0));
     return value_changed;
@@ -3310,7 +3317,8 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
     const float w = CalcItemWidth();
     const ImU32 color_marker = (g.NextItemData.HasFlags & ImGuiNextItemDataFlags_HasColorMarker) ? g.NextItemData.ColorMarker : 0;
 
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
     const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, label_size.y + style.FramePadding.y * 2.0f));
     const ImRect total_bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
 
@@ -3382,7 +3390,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
     RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
 
     if (label_size.x > 0.0f)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label, label_end, false);
 
     IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (temp_input_allowed ? ImGuiItemStatusFlags_Inputable : 0));
     return value_changed;
@@ -3487,7 +3495,8 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = window->GetID(label);
 
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
     const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + size);
     const ImRect bb(frame_bb.Min, frame_bb.Max + ImVec2(label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f, 0.0f));
 
@@ -3532,8 +3541,9 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
     const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_COUNTOF(value_buf), data_type, p_data, format);
     RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.0f));
     if (label_size.x > 0.0f)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label, label_end, false);
 
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
     return value_changed;
 }
 
@@ -4513,6 +4523,9 @@ static bool InputTextFilterCharacter(ImGuiContext* ctx, ImGuiInputTextState* sta
         callback_data.EventFlag = ImGuiInputTextFlags_CallbackCharFilter;
         callback_data.EventChar = (ImWchar)c;
         callback_data.EventActivated = (g.ActiveId == state->ID && g.ActiveIdIsJustActivated);
+        callback_data.CursorPos = state->Stb->cursor;
+        callback_data.SelectionStart = state->Stb->select_start;
+        callback_data.SelectionEnd = state->Stb->select_end;
         callback_data.UserData = user_data;
         if (callback(&callback_data) != 0)
             return false;
@@ -4695,7 +4708,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
     if (is_multiline) // Open group before calling GetID() because groups tracks id created within their scope (including the scrollbar)
         BeginGroup();
     const ImGuiID id = window->GetID(label);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
     const ImVec2 frame_size = CalcItemSize(size_arg, CalcItemWidth(), (is_multiline ? g.FontSize * 8.0f : label_size.y) + style.FramePadding.y * 2.0f); // Arbitrary default of 8 lines high for multi-line
     const ImVec2 total_size = ImVec2(frame_size.x + (label_size.x > 0.0f ? style.ItemInnerSpacing.x + label_size.x : 0.0f), frame_size.y);
 
@@ -4709,7 +4723,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
     {
         ImVec2 backup_pos = window->DC.CursorPos;
         ItemSize(total_bb, style.FramePadding.y);
-        if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable))
+        bool no_clip = (g.InputTextDeactivatedState.ID == id) || (g.ActiveId == id) || (id == g.NavActivateId); // Mimic some of ItemAdd() logic + add InputTextDeactivatedState.ID check.
+        if (!ItemAdd(total_bb, id, &frame_bb, ImGuiItemFlags_Inputable) && !no_clip)
         {
             EndGroup();
             return false;
@@ -4735,7 +4750,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
         g.NavActivateId = backup_activate_id;
         PopStyleVar(3);
         PopStyleColor();
-        if (!child_visible)
+        if (!child_visible && !no_clip)
         {
             EndChild();
             EndGroup();
@@ -4799,7 +4814,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
     float scroll_y = is_multiline ? draw_window->Scroll.y : FLT_MAX;
 
     const bool init_reload_from_user_buf = (state != NULL && state->WantReloadUserBuf);
-    const bool init_changed_specs = (state != NULL && state->Stb->single_line != !is_multiline); // state != NULL means its our state.
+    const bool init_changed_specs_multiline = (state != NULL && (state->Stb->single_line != !is_multiline)); // state != NULL means its our state.
+    const bool init_changed_specs_readonly = (state != NULL && ((state->Flags ^ flags) & ImGuiInputTextFlags_ReadOnly)); // state != NULL means its our state.
     const bool init_make_active = (input_requested_by_user || input_requested_by_nav || input_requested_by_reactivate || user_scroll_finish);
     if (init_reload_from_user_buf)
     {
@@ -4813,7 +4829,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
         state->Stb->select_start = state->ReloadSelectionStart;
         state->Stb->cursor = state->Stb->select_end = state->ReloadSelectionEnd; // will be clamped to bounds below
     }
-    else if ((init_make_active && g.ActiveId != id) || init_changed_specs)
+    else if ((init_make_active && g.ActiveId != id) || init_changed_specs_multiline || init_changed_specs_readonly)
     {
         // Access state even if we don't own it yet.
         state = &g.InputTextState;
@@ -4834,8 +4850,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
 
         // Preserve cursor position and undo/redo stack if we come back to same widget
         // FIXME: Since we reworked this on 2022/06, may want to differentiate recycle_cursor vs recycle_undostate?
-        bool recycle_state = (state->ID == id && !init_changed_specs);
-        if (recycle_state && (state->TextLen != buf_len || (state->TextA.Data == NULL || strncmp(state->TextA.Data, buf, buf_len) != 0)))
+        bool recycle_state = (state->ID == id && !init_changed_specs_multiline);
+        if (recycle_state && !init_changed_specs_readonly && (state->TextLen != buf_len || (state->TextA.Data == NULL || strncmp(state->TextA.Data, buf, buf_len) != 0)))
             recycle_state = false;
 
         // Start edition
@@ -4944,13 +4960,17 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
     if (is_password && !is_displaying_hint)
         PushPasswordFont();
 
-    // Word-wrapping: attempt to keep cursor in view while resizing frame/parent
-    // FIXME-WORDWRAP: It would be better to preserve same relative offset.
-    if (is_wordwrap && state != NULL && state->ID == id && state->WrapWidth != wrap_width)
+    if (state != NULL && state->ID == id)
     {
-        state->CursorCenterY = true;
-        state->WrapWidth = wrap_width;
-        render_cursor = true;
+        state->Flags = flags;
+
+        // Word-wrapping: attempt to keep cursor in view while resizing frame/parent (FIXME-WORDWRAP: would be better to preserve same relative offset)
+        if (is_wordwrap && state->WrapWidth != wrap_width)
+        {
+            state->CursorCenterY = true;
+            state->WrapWidth = wrap_width;
+            render_cursor = true;
+        }
     }
 
     // Process mouse inputs and character inputs
@@ -4959,7 +4979,6 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
         IM_ASSERT(state != NULL);
         state->EditedThisFrame = false;
         state->BufCapacity = buf_size;
-        state->Flags = flags;
         state->WrapWidth = wrap_width;
 
         // Although we are active we don't prevent mouse from hovering other elements unless we are interacting right now with the widget.
@@ -5659,7 +5678,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
     }
 
     if (label_size.x > 0)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label, label_end, false);
 
     if (value_changed)
         MarkItemEdited(id);
@@ -7331,7 +7350,8 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
 
     // Submit label or explicit size to ItemSize(), whereas ItemAdd() will submit a larger/spanning rectangle.
     ImGuiID id = window->GetID(label);
-    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    ImVec2 label_size = CalcTextSize(label, label_end, false);
     ImVec2 size(size_arg.x != 0.0f ? size_arg.x : label_size.x, size_arg.y != 0.0f ? size_arg.y : label_size.y);
     ImVec2 pos = window->DC.CursorPos;
     pos.y += window->DC.CurrLineTextBaseOffset;
@@ -7486,7 +7506,11 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
 
     // Text stays at the submission position. Alignment/clipping extents ignore SpanAllColumns.
     if (is_visible)
-        RenderTextClipped(pos, ImVec2(ImMin(pos.x + size.x, window->WorkRect.Max.x), pos.y + size.y), label, NULL, &label_size, style.SelectableTextAlign, &bb);
+        RenderTextClipped(pos, ImVec2(ImMin(pos.x + size.x, window->WorkRect.Max.x), pos.y + size.y), label, label_end, &label_size, style.SelectableTextAlign, &bb);
+
+#ifdef IMGUI_DEBUG_BOXSELECT
+    if (g.BoxSelectState.UnclipMode) { GetForegroundDrawList()->AddText(pos, IM_COL32(255,255,0,200), label, label_end); }
+#endif
 
     // Automatically close popups
     if (pressed && !auto_selected && (window->Flags & ImGuiWindowFlags_Popup) && !(flags & ImGuiSelectableFlags_NoAutoClosePopups) && (g.LastItemData.ItemFlags & ImGuiItemFlags_AutoClosePopups))
@@ -7803,7 +7827,7 @@ bool ImGui::BeginBoxSelect(const ImRect& scope_rect, ImGuiWindow* window, ImGuiI
         return false;
 
     // Current frame absolute prev/current rectangles are used to toggle selection.
-    // They are derived from positions relative to scrolling space.
+    // They are derived from positions relative to scrolling space, so "previous" rectangle is reprojected for current frame coordinates.
     ImVec2 start_pos_abs = WindowPosRelToAbs(window, bs->StartPosRel);
     ImVec2 prev_end_pos_abs = WindowPosRelToAbs(window, bs->EndPosRel); // Clamped already
     ImVec2 curr_end_pos_abs = g.IO.MousePos;
@@ -7813,20 +7837,69 @@ bool ImGui::BeginBoxSelect(const ImRect& scope_rect, ImGuiWindow* window, ImGuiI
     bs->BoxSelectRectPrev.Max = ImMax(start_pos_abs, prev_end_pos_abs);
     bs->BoxSelectRectCurr.Min = ImMin(start_pos_abs, curr_end_pos_abs);
     bs->BoxSelectRectCurr.Max = ImMax(start_pos_abs, curr_end_pos_abs);
+    //IMGUI_DEBUG_LOG("StartPosRel (%.2f,%.2f) EndPosRel (%.2f,%.2f) -> (%.2f,%.2f)\n", bs->StartPosRel.x, bs->StartPosRel.y, bs->EndPosRel.x, bs->EndPosRel.y, WindowPosAbsToRel(window, g.IO.MousePos).x, WindowPosAbsToRel(window, g.IO.MousePos).y);
 
-    // Box-select 2D mode detects horizontal changes (vertical ones are already picked by Clipper)
-    // Storing an extra rect used by widgets supporting box-select.
-    if (ms_flags & ImGuiMultiSelectFlags_BoxSelect2d)
-        if (bs->BoxSelectRectPrev.Min.x != bs->BoxSelectRectCurr.Min.x || bs->BoxSelectRectPrev.Max.x != bs->BoxSelectRectCurr.Max.x)
+    // Box-select 2D mode detects change of the rectangle.
+    // Storing unclip rects which will be tested by widgets supporting box-select. Always update rectangles when active (even if we don't use them).
+    // To facilitate understanding this: enable IMGUI_DEBUG_BOXSELECT and visualize all geometry.
+    if (ms_flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d))
+    {
+        // For both sides, compute the area differing between Prev and Curr rectangles.
+        bs->UnclipRects[0] = bs->UnclipRects[1] = ImRect(+FLT_MAX, +FLT_MAX, -FLT_MAX, -FLT_MAX);
+        for (int side = 0; side < 2; side++)
         {
-            bs->UnclipMode = true;
-            bs->UnclipRect = bs->BoxSelectRectPrev; // FIXME-OPT: UnclipRect x coordinates could be intersection of Prev and Curr rect on X axis.
-            bs->UnclipRect.Add(bs->BoxSelectRectCurr);
+            ImVec2 d_min = (side == 0) ? ImMin(bs->BoxSelectRectCurr.Min, bs->BoxSelectRectPrev.Min) : ImMin(bs->BoxSelectRectCurr.Max, bs->BoxSelectRectPrev.Max);
+            ImVec2 d_max = (side == 0) ? ImMax(bs->BoxSelectRectCurr.Min, bs->BoxSelectRectPrev.Min) : ImMax(bs->BoxSelectRectCurr.Max, bs->BoxSelectRectPrev.Max);
+            if (d_min.x != d_max.x)
+            {
+                bs->UnclipRects[0].AddX(d_min.x);
+                bs->UnclipRects[0].AddX(d_max.x);
+            }
+            if (d_min.y != d_max.y)
+            {
+                bs->UnclipRects[1].AddY(d_min.y);
+                bs->UnclipRects[1].AddY(d_max.y);
+            }
         }
 
-    //GetForegroundDrawList()->AddRect(bs->UnclipRect.Min, bs->UnclipRect.Max, IM_COL32(255,0,0,200), 0.0f, 0, 3.0f);
+        ImRect box_select_intersection = bs->BoxSelectRectPrev;
+        box_select_intersection.Add(bs->BoxSelectRectCurr);
+        if (ms_flags & ImGuiMultiSelectFlags_BoxSelect2d)
+            if (bs->BoxSelectRectPrev.Min.x != bs->BoxSelectRectCurr.Min.x || bs->BoxSelectRectPrev.Max.x != bs->BoxSelectRectCurr.Max.x)
+            {
+                bs->UnclipRects[0].AddY(box_select_intersection.Min.y);
+                bs->UnclipRects[0].AddY(box_select_intersection.Max.y);
+            }
+        if (ms_flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d))
+            if (bs->BoxSelectRectPrev.Min.y != bs->BoxSelectRectCurr.Min.y || bs->BoxSelectRectPrev.Max.y != bs->BoxSelectRectCurr.Max.y)
+            {
+                bs->UnclipRects[1].AddX(box_select_intersection.Min.x);
+                bs->UnclipRects[1].AddX(box_select_intersection.Max.x);
+            }
+
+        // Merge both rectangles into one.
+        // FIXME-OPT: When UnclipRect.Area() is much larger than the sum of UnclipRects[0]/[1] Areas, widgets should
+        // ideally first use UnclipRect as a first coarse cull layer + the individual ones as a second validation.
+        bs->UnclipRect = bs->UnclipRects[0];
+        bs->UnclipRect.Add(bs->UnclipRects[1]);
+        if (!bs->UnclipRect.IsInverted() && (!window->ClipRect.Contains(bs->UnclipRect.Min) || !window->ClipRect.Contains(bs->UnclipRect.Max))) // !! Don't use Contains(ImRect)
+            bs->UnclipMode = true;
+        if (bs->UnclipMode && g.CurrentTable != NULL)
+            TableApplyExternalUnclipRect(g.CurrentTable, bs->UnclipRect); // No need submitting both
+    }
+
+#ifdef IMGUI_DEBUG_BOXSELECT
+    //GetForegroundDrawList()->AddRect(scope_rect.Min, scope_rect.Max, IM_COL32(0, 255, 0, 200), 0.0f, 0, 4.0f);
     //GetForegroundDrawList()->AddRect(bs->BoxSelectRectPrev.Min, bs->BoxSelectRectPrev.Max, IM_COL32(255,0,0,200), 0.0f, 0, 3.0f);
     //GetForegroundDrawList()->AddRect(bs->BoxSelectRectCurr.Min, bs->BoxSelectRectCurr.Max, IM_COL32(0,255,0,200), 0.0f, 0, 1.0f);
+    if (ms_flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d))
+    {
+        for (ImRect& unclip_r : bs->UnclipRects)
+            if (!unclip_r.IsInverted())
+                GetForegroundDrawList()->AddRect(unclip_r.Min, unclip_r.Max, bs->UnclipMode ? IM_COL32(255, 255, 0, 200) : IM_COL32(255, 0, 0, 200), 0.0f, 0, 4.0f);
+        GetForegroundDrawList()->AddRect(bs->UnclipRect.Min, bs->UnclipRect.Max, bs->UnclipMode ? IM_COL32(255, 255, 0, 200) : IM_COL32(255, 0, 0, 200), 0.0f, 0, 2.0f);
+    }
+#endif
     return true;
 }
 
@@ -7842,8 +7915,9 @@ void ImGui::EndBoxSelect(const ImRect& scope_rect, ImGuiMultiSelectFlags ms_flag
     bs->EndPosRel = WindowPosAbsToRel(window, ImClamp(g.IO.MousePos, scope_rect.Min, scope_rect.Max)); // Clamp stored position according to current scrolling view
     ImRect box_select_r = bs->BoxSelectRectCurr;
     box_select_r.ClipWith(scope_rect);
-    window->DrawList->AddRectFilled(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_SeparatorHovered, 0.30f)); // FIXME-MULTISELECT: Styling
-    window->DrawList->AddRect(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_NavCursor)); // FIXME-MULTISELECT FIXME-DPI: Styling
+    ImGuiWindow* draw_window = FindFrontMostVisibleChildWindow(window);
+    draw_window->DrawList->AddRectFilled(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_SeparatorHovered, 0.30f)); // FIXME-MULTISELECT: Styling
+    draw_window->DrawList->AddRect(box_select_r.Min, box_select_r.Max, GetColorU32(ImGuiCol_NavCursor)); // FIXME-MULTISELECT FIXME-DPI: Styling
 
     // Scroll
     const bool enable_scroll = (ms_flags & ImGuiMultiSelectFlags_ScopeWindow) && (ms_flags & ImGuiMultiSelectFlags_BoxSelectNoScroll) == 0;
@@ -7883,18 +7957,18 @@ static void DebugLogMultiSelectRequests(const char* function, const ImGuiMultiSe
 
 static ImRect CalcScopeRect(ImGuiMultiSelectTempData* ms, ImGuiWindow* window)
 {
-    ImGuiContext& g = *GImGui;
     if (ms->Flags & ImGuiMultiSelectFlags_ScopeRect)
     {
         // Warning: this depends on CursorMaxPos so it means to be called by EndMultiSelect() only
+        // This probably doesn't work inside a table as there are ample ambiguities related to exact time of calling BeginMultiSelect()/EndMultiSelect().
         return ImRect(ms->ScopeRectMin, ImMax(window->DC.CursorMaxPos, ms->ScopeRectMin));
     }
     else
     {
-        // When a table, pull HostClipRect, which allows us to predict ClipRect before first row/layout is performed. (#7970)
+        //// When a table, pull HostClipRect, which allows us to predict ClipRect before first row/layout is performed. (#7970)
         ImRect scope_rect = window->InnerClipRect;
-        if (g.CurrentTable != NULL)
-            scope_rect = g.CurrentTable->HostClipRect;
+        //if (g.CurrentTable != NULL)
+        //    scope_rect = g.CurrentTable->HostClipRect;
 
         // Add inner table decoration (#7821) // FIXME: Why not baking in InnerClipRect?
         scope_rect.Min = ImMin(scope_rect.Min + ImVec2(window->DecoInnerSizeX1, window->DecoInnerSizeY1), scope_rect.Max);
@@ -7930,18 +8004,24 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int sel
     // FIXME: Workaround to the fact we override CursorMaxPos, meaning size measurement are lost. (#8250)
     // They should perhaps be stacked properly?
     if (ImGuiTable* table = g.CurrentTable)
-        if (table->CurrentColumn != -1)
+    {
+        if (!table->IsLayoutLocked)
+            TableUpdateLayout(table);
+        else if (table->CurrentColumn != -1)
             TableEndCell(table); // This is currently safe to call multiple time. If that properly is lost we can extract the "save measurement" part of it.
+    }
 
     // FIXME: BeginFocusScope()
     const ImGuiID id = window->IDStack.back();
     ms->Clear();
     ms->FocusScopeId = id;
     ms->Flags = flags;
-    ms->IsFocused = (ms->FocusScopeId == g.NavFocusScopeId);
     ms->BackupCursorMaxPos = window->DC.CursorMaxPos;
-    ms->ScopeRectMin = window->DC.CursorMaxPos = window->DC.CursorPos;
+    ms->ScopeRectMin = window->DC.CursorPos;
+    if (flags & ImGuiMultiSelectFlags_ScopeRect)
+        window->DC.CursorMaxPos = ms->ScopeRectMin; // CalcScopeRect() for ImGuiMultiSelectFlags_ScopeRect will measure in EndMultiSelect().
     PushFocusScope(ms->FocusScopeId);
+    ms->IsFocused = IsInNavFocusRoute(g.CurrentFocusScopeId);
     if (flags & ImGuiMultiSelectFlags_ScopeWindow) // Mark parent child window as navigable into, with highlight. Assume user will always submit interactive items.
         window->DC.NavLayersActiveMask |= 1 << ImGuiNavLayer_Main;
 
@@ -8023,7 +8103,7 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int sel
             storage->LastSelectionSize = 0;
     }
     ms->LoopRequestSetAll = request_select_all ? 1 : request_clear ? 0 : -1;
-    ms->LastSubmittedItem = ImGuiSelectionUserData_Invalid;
+    //ms->PrevSubmittedItem = ImGuiSelectionUserData_Invalid;
 
     if (g.DebugLogFlags & ImGuiDebugLogFlags_EventSelection)
         DebugLogMultiSelectRequests("BeginMultiSelect", &ms->IO);
@@ -8069,7 +8149,7 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
     // Clear selection when clicking void?
     // We specifically test for IsMouseDragPastThreshold(0) == false to allow box-selection!
     // The InnerRect test is necessary for non-child/decorated windows.
-    bool scope_hovered = IsWindowHovered() && window->InnerRect.Contains(g.IO.MousePos);
+    bool scope_hovered = window->InnerRect.Contains(g.IO.MousePos) && IsWindowHovered(ImGuiHoveredFlags_ChildWindows);
     if (scope_hovered && (ms->Flags & ImGuiMultiSelectFlags_ScopeRect))
         scope_hovered &= scope_rect.Contains(g.IO.MousePos);
     if (scope_hovered && g.HoveredId == 0 && g.ActiveId == 0)
@@ -8095,10 +8175,13 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
     if (ms->Flags & ImGuiMultiSelectFlags_NavWrapX)
     {
         IM_ASSERT(ms->Flags & ImGuiMultiSelectFlags_ScopeWindow); // Only supported at window scope
-        ImGui::NavMoveRequestTryWrapping(ImGui::GetCurrentWindow(), ImGuiNavMoveFlags_WrapX);
+        NavMoveRequestTryWrapping(GetCurrentWindow(), ImGuiNavMoveFlags_WrapX);
     }
 
     // Unwind
+    if (ImGuiTable* table = g.CurrentTable)
+        if (table->IsInsideRow)
+            TableEndRow(table);
     window->DC.CursorMaxPos = ImMax(ms->BackupCursorMaxPos, window->DC.CursorMaxPos);
     PopFocusScope();
 
@@ -8126,6 +8209,8 @@ void ImGui::SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_d
         g.NextItemData.ItemFlags |= ImGuiItemFlags_HasSelectionUserData | ImGuiItemFlags_IsMultiSelect;
         if (ms->IO.RangeSrcItem == selection_user_data)
             ms->RangeSrcPassedBy = true;
+        //ms->PrevSubmittedItem = ms->CurrSubmittedItem; // Can't rely on previous g.NextItemData.SelectionUserData because NextItemData is not restored on nested multi-select.
+        //ms->CurrSubmittedItem = selection_user_data;
     }
     else
     {
@@ -8274,8 +8359,19 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
     if (ms->BoxSelectId != 0)
         if (ImGuiBoxSelectState* bs = GetBoxSelectState(ms->BoxSelectId))
         {
-            const bool rect_overlap_curr = bs->BoxSelectRectCurr.Overlaps(g.LastItemData.Rect);
-            const bool rect_overlap_prev = bs->BoxSelectRectPrev.Overlaps(g.LastItemData.Rect);
+            ImRect item_rect = g.LastItemData.Rect;
+            if (!window->DC.NavIsScrollPushableX) // FIXME: Rename to be more generic.
+                if (ImGuiTable* table = g.CurrentTable)
+                    if (table->CurrentColumn != -1)
+                    {
+                        // FIXME: We cannot use current ClipRect as it includes HostClipRect.
+                        // A more generic version would be nice, but window->WorkRect.Min/Max exclude CellPadding. (#7994)
+                        ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
+                        item_rect.Min.x = ImMax(item_rect.Min.x, column->MinX);
+                        item_rect.Max.x = ImMin(item_rect.Max.x, column->MaxX);
+                    }
+            const bool rect_overlap_curr = bs->BoxSelectRectCurr.Overlaps(item_rect);
+            const bool rect_overlap_prev = bs->BoxSelectRectPrev.Overlaps(item_rect);
             if ((rect_overlap_curr && !rect_overlap_prev && !selected) || (rect_overlap_prev && !rect_overlap_curr))
             {
                 if (storage->LastSelectionSize <= 0 && bs->IsStartedSetNavIdOnce)
@@ -8287,6 +8383,9 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
                 {
                     selected = !selected;
                     MultiSelectAddSetRange(ms, selected, +1, item_data, item_data);
+#ifdef IMGUI_DEBUG_BOXSELECT
+                    GetForegroundDrawList()->AddRectFilled(g.LastItemData.Rect.Min, g.LastItemData.Rect.Max, selected ? IM_COL32(0, 255, 0, 200) : IM_COL32(255, 0, 0, 200));
+#endif
                 }
                 storage->LastSelectionSize = ImMax(storage->LastSelectionSize + 1, 1);
             }
@@ -8400,7 +8499,6 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
     }
     if (storage->NavIdItem == item_data)
         ms->NavIdPassedBy = true;
-    ms->LastSubmittedItem = item_data;
 
     *p_selected = selected;
     *p_pressed = pressed;
@@ -8416,15 +8514,20 @@ void ImGui::MultiSelectAddSetAll(ImGuiMultiSelectTempData* ms, bool selected)
 void ImGui::MultiSelectAddSetRange(ImGuiMultiSelectTempData* ms, bool selected, int range_dir, ImGuiSelectionUserData first_item, ImGuiSelectionUserData last_item)
 {
     // Merge contiguous spans into same request (unless NoRangeSelect is set which guarantees single-item ranges)
+    // FIXME-OPT: Disabled on 2026/04/09 as this would break with any form of coarse clipping that we don't know about (e.g. TableNextColumn() return value).
+    // The low-hanging fruit would be to know that ImGuiSelectionUserData are sequential indices, in which case we can trivially compare PrevSubmittedItem + RangeDir == FirstItem.
+    // User can always perform this merge if required.
+#if 0
     if (ms->IO.Requests.Size > 0 && first_item == last_item && (ms->Flags & ImGuiMultiSelectFlags_NoRangeSelect) == 0)
     {
         ImGuiSelectionRequest* prev = &ms->IO.Requests.Data[ms->IO.Requests.Size - 1];
-        if (prev->Type == ImGuiSelectionRequestType_SetRange && prev->RangeLastItem == ms->LastSubmittedItem && prev->Selected == selected)
+        if (prev->Type == ImGuiSelectionRequestType_SetRange && prev->RangeLastItem == ms->PrevSubmittedItem && prev->Selected == selected)
         {
             prev->RangeLastItem = last_item;
             return;
         }
     }
+#endif
 
     ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetRange, selected, (ImS8)range_dir, (range_dir > 0) ? first_item : last_item, (range_dir > 0) ? last_item : first_item };
     ms->IO.Requests.push_back(req); // Add new request
@@ -8662,7 +8765,8 @@ bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
 
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = GetID(label);
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     // Size default to hold ~7.25 items.
     // Fractional number of items helps seeing that we can scroll down/up without looking at scrollbar.
@@ -8685,7 +8789,7 @@ bool ImGui::BeginListBox(const char* label, const ImVec2& size_arg)
     if (label_size.x > 0.0f)
     {
         ImVec2 label_pos = ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y);
-        RenderText(label_pos, label);
+        RenderText(label_pos, label, label_end, false);
         window->DC.CursorMaxPos = ImMax(window->DC.CursorMaxPos, label_pos + label_size);
         AlignTextToFramePadding();
     }
@@ -8766,9 +8870,7 @@ bool ImGui::ListBox(const char* label, int* current_item, const char* (*getter)(
 // - PlotHistogram()
 //-------------------------------------------------------------------------
 // Plot/Graph widgets are not very good.
-// Consider writing your own, or using a third-party one, see:
-// - ImPlot https://github.com/epezent/implot
-// - others https://github.com/ocornut/imgui/wiki/Useful-Extensions
+// Consider using ImPlot (https://github.com/epezent/implot) which is much better!
 //-------------------------------------------------------------------------
 
 int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, const ImVec2& size_arg)
@@ -8781,7 +8883,8 @@ int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_get
     const ImGuiStyle& style = g.Style;
     const ImGuiID id = window->GetID(label);
 
-    const ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    const ImVec2 label_size = CalcTextSize(label, label_end, false);
     const ImVec2 frame_size = CalcItemSize(size_arg, CalcItemWidth(), label_size.y + style.FramePadding.y * 2.0f);
 
     const ImRect frame_bb(window->DC.CursorPos, window->DC.CursorPos + frame_size);
@@ -8880,10 +8983,11 @@ int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_get
         RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, overlay_text, NULL, NULL, ImVec2(0.5f, 0.0f));
 
     if (label_size.x > 0.0f)
-        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
+        RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label, label_end, false);
 
     // Return hovered index or -1 if none are hovered.
     // This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags);
     return idx_hovered;
 }
 
@@ -8913,6 +9017,7 @@ void ImGui::PlotLines(const char* label, float (*values_getter)(void* data, int
     PlotEx(ImGuiPlotType_Lines, label, values_getter, data, values_count, values_offset, overlay_text, scale_min, scale_max, graph_size);
 }
 
+// Plot Histogram (the data provided _is_ histogram data. it doesn't compute the histogram of your data)
 void ImGui::PlotHistogram(const char* label, const float* values, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 graph_size, int stride)
 {
     ImGuiPlotArrayGetterData data(values, stride);
@@ -9245,7 +9350,8 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
     // Tag menu as used. Next time BeginMenu() with same ID is called it will append to existing menu
     g.MenusIdSubmittedThisFrame.push_back(id);
 
-    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     // Odd hack to allow hovering across menus of a same menu-set (otherwise we wouldn't be able to hover parent without always being a Child window)
     // This is only done for items for the menu set and not the full parent window.
@@ -9277,7 +9383,7 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
         ImVec2 text_pos(window->DC.CursorPos.x + offsets->OffsetLabel, pos.y + window->DC.CurrLineTextBaseOffset);
         pressed = Selectable("", menu_is_open, selectable_flags, label_size);
         LogSetNextTextDecoration("[", "]");
-        RenderText(text_pos, label);
+        RenderText(text_pos, label, label_end, false);
         PopStyleVar();
         window->DC.CursorPos.x += IM_TRUNC(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
         popup_pos = ImVec2(pos.x - 1.0f - IM_TRUNC(style.ItemSpacing.x * 0.5f), text_pos.y - style.FramePadding.y + window->MenuBarHeight);
@@ -9294,7 +9400,7 @@ bool ImGui::BeginMenuEx(const char* label, const char* icon, bool enabled)
         ImVec2 text_pos(window->DC.CursorPos.x, pos.y + window->DC.CurrLineTextBaseOffset);
         pressed = Selectable("", menu_is_open, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, label_size.y));
         LogSetNextTextDecoration("", ">");
-        RenderText(ImVec2(text_pos.x + offsets->OffsetLabel, text_pos.y), label);
+        RenderText(ImVec2(text_pos.x + offsets->OffsetLabel, text_pos.y), label, label_end, false);
         if (icon_w > 0.0f)
             RenderText(ImVec2(text_pos.x + offsets->OffsetIcon, text_pos.y), icon);
         RenderArrow(window->DrawList, ImVec2(text_pos.x + offsets->OffsetMark + extra_w + g.FontSize * 0.30f, text_pos.y), GetColorU32(ImGuiCol_Text), ImGuiDir_Right);
@@ -9459,7 +9565,8 @@ bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut
     ImGuiContext& g = *GImGui;
     ImGuiStyle& style = g.Style;
     ImVec2 pos = window->DC.CursorPos;
-    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     // See BeginMenuEx() for comments about this.
     const bool menuset_is_open = IsRootOfOpenMenuSet();
@@ -9486,7 +9593,7 @@ bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut
         pressed = Selectable("", selected, selectable_flags, ImVec2(label_size.x, 0.0f));
         PopStyleVar();
         if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible)
-            RenderText(text_pos, label);
+            RenderText(text_pos, label, label_end, false);
         window->DC.CursorPos.x += IM_TRUNC(style.ItemSpacing.x * (-1.0f + 0.5f)); // -1 spacing to compensate the spacing added when Selectable() did a SameLine(). It would also work to call SameLine() ourselves after the PopStyleVar().
     }
     else
@@ -9503,7 +9610,7 @@ bool ImGui::MenuItemEx(const char* label, const char* icon, const char* shortcut
         pressed = Selectable("", false, selectable_flags | ImGuiSelectableFlags_SpanAvailWidth, ImVec2(min_w, label_size.y));
         if (g.LastItemData.StatusFlags & ImGuiItemStatusFlags_Visible)
         {
-            RenderText(text_pos + ImVec2(offsets->OffsetLabel, 0.0f), label);
+            RenderText(text_pos + ImVec2(offsets->OffsetLabel, 0.0f), label, label_end, false);
             if (icon_w > 0.0f)
                 RenderText(text_pos + ImVec2(offsets->OffsetIcon, 0.0f), icon);
             if (shortcut_w > 0.0f)
@@ -10557,7 +10664,7 @@ bool    ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
     // We don't have CPU clipping primitives to clip the CloseButton (until it becomes a texture), so need to add an extra draw call (temporary in the case of vertical animation)
     const bool want_clip_rect = is_central_section && (bb.Min.x < tab_bar->ScrollingRectMinX || bb.Max.x > tab_bar->ScrollingRectMaxX);
     if (want_clip_rect)
-        PushClipRect(ImVec2(ImMax(bb.Min.x, tab_bar->ScrollingRectMinX), bb.Min.y - 1), ImVec2(tab_bar->ScrollingRectMaxX, bb.Max.y), true);
+        PushClipRect(ImVec2(ImClamp(bb.Min.x, tab_bar->ScrollingRectMinX, tab_bar->ScrollingRectMaxX), bb.Min.y - 1), ImVec2(tab_bar->ScrollingRectMaxX, bb.Max.y), true);
 
     ImVec2 backup_cursor_max_pos = window->DC.CursorMaxPos;
     ItemSize(bb.GetSize(), style.FramePadding.y);
@@ -10742,7 +10849,8 @@ void ImGui::TabItemBackground(ImDrawList* draw_list, const ImRect& bb, ImGuiTabI
 void ImGui::TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb, ImGuiTabItemFlags flags, ImVec2 frame_padding, const char* label, ImGuiID tab_id, ImGuiID close_button_id, bool is_contents_visible, bool* out_just_closed, bool* out_text_clipped)
 {
     ImGuiContext& g = *GImGui;
-    ImVec2 label_size = CalcTextSize(label, NULL, true);
+    const char* label_end = FindRenderedTextEnd(label);
+    ImVec2 label_size = CalcTextSize(label, label_end, false);
 
     if (out_just_closed)
         *out_just_closed = false;
@@ -10827,7 +10935,7 @@ void ImGui::TabItemLabelAndCloseButton(ImDrawList* draw_list, const ImRect& bb,
         }
     }
     LogSetNextTextDecoration("/", "\\");
-    RenderTextEllipsis(draw_list, text_ellipsis_clip_bb.Min, text_ellipsis_clip_bb.Max, ellipsis_max_x, label, NULL, &label_size);
+    RenderTextEllipsis(draw_list, text_ellipsis_clip_bb.Min, text_ellipsis_clip_bb.Max, ellipsis_max_x, label, label_end, &label_size);
 
 #if 0
     if (!is_contents_visible)

misc/freetype/imgui_freetype.cpp

@@ -95,6 +95,10 @@ static void* (*GImGuiFreeTypeAllocFunc)(size_t size, void* user_data) = ImGuiFre
 static void  (*GImGuiFreeTypeFreeFunc)(void* ptr, void* user_data) = ImGuiFreeTypeDefaultFreeFunc;
 static void* GImGuiFreeTypeAllocatorUserData = nullptr;
 
+// Load struct
+static ImFontLoader GImGuiFreeTypeLoader;
+static char         GImGuiFreeTypeLoaderName[48] = "FreeType";
+
 // Lunasvg support
 #ifdef IMGUI_ENABLE_FREETYPE_LUNASVG
 static FT_Error ImGuiLunasvgPortInit(FT_Pointer* state);
@@ -146,6 +150,7 @@ struct ImGui_ImplFreeType_Data
 {
     FT_Library                      Library;
     FT_MemoryRec_                   MemoryManager;
+    char                            BackendName[48];
     ImGui_ImplFreeType_Data()       { memset((void*)this, 0, sizeof(*this)); }
 };
 
@@ -359,6 +364,11 @@ static bool ImGui_ImplFreeType_LoaderInit(ImFontAtlas* atlas)
         return false;
     }
 
+    // Update ImFontLoader::Name field with linked version
+    FT_Int ver_linked_major, ver_linked_minor, ver_linked_patch;
+    FT_Library_Version(bd->Library, &ver_linked_major, &ver_linked_minor, &ver_linked_patch);
+    snprintf(GImGuiFreeTypeLoaderName, sizeof(GImGuiFreeTypeLoaderName), "FreeType (%d.%d.%d; %d.%d.%d)", FREETYPE_MAJOR, FREETYPE_MINOR, FREETYPE_PATCH, ver_linked_major, ver_linked_minor, ver_linked_patch);
+
     // If you don't call FT_Add_Default_Modules() the rest of code may work, but FreeType won't use our custom allocator.
     FT_Add_Default_Modules(bd->Library);
 
@@ -418,8 +428,9 @@ static bool ImGui_ImplFreeType_FontBakedInit(ImFontAtlas* atlas, ImFontConfig* s
 {
     IM_UNUSED(atlas);
     float size = baked->Size;
+    const float ref_size = baked->OwnerFont->Sources[0]->SizePixels;
     if (src->MergeMode && src->SizePixels != 0.0f)
-        size *= (src->SizePixels / baked->OwnerFont->Sources[0]->SizePixels);
+        size *= (src->SizePixels / ref_size);
     size *= src->ExtraSizeScale;
 
     ImGui_ImplFreeType_FontSrcData* bd_font_data = (ImGui_ImplFreeType_FontSrcData*)src->FontLoaderData;
@@ -569,18 +580,18 @@ static bool ImGui_ImplFreetype_FontSrcContainsGlyph(ImFontAtlas* atlas, ImFontCo
 
 const ImFontLoader* ImGuiFreeType::GetFontLoader()
 {
-    static ImFontLoader loader;
-    loader.Name = "FreeType";
-    loader.LoaderInit = ImGui_ImplFreeType_LoaderInit;
-    loader.LoaderShutdown = ImGui_ImplFreeType_LoaderShutdown;
-    loader.FontSrcInit = ImGui_ImplFreeType_FontSrcInit;
-    loader.FontSrcDestroy = ImGui_ImplFreeType_FontSrcDestroy;
-    loader.FontSrcContainsGlyph = ImGui_ImplFreetype_FontSrcContainsGlyph;
-    loader.FontBakedInit = ImGui_ImplFreeType_FontBakedInit;
-    loader.FontBakedDestroy = ImGui_ImplFreeType_FontBakedDestroy;
-    loader.FontBakedLoadGlyph = ImGui_ImplFreeType_FontBakedLoadGlyph;
-    loader.FontBakedSrcLoaderDataSize = sizeof(ImGui_ImplFreeType_FontSrcBakedData);
-    return &loader;
+    ImFontLoader* loader = &GImGuiFreeTypeLoader;
+    loader->Name = GImGuiFreeTypeLoaderName; // Initially "FreeType" then updated during the call to ImGui_ImplFreeType_LoaderInit()
+    loader->LoaderInit = ImGui_ImplFreeType_LoaderInit;
+    loader->LoaderShutdown = ImGui_ImplFreeType_LoaderShutdown;
+    loader->FontSrcInit = ImGui_ImplFreeType_FontSrcInit;
+    loader->FontSrcDestroy = ImGui_ImplFreeType_FontSrcDestroy;
+    loader->FontSrcContainsGlyph = ImGui_ImplFreetype_FontSrcContainsGlyph;
+    loader->FontBakedInit = ImGui_ImplFreeType_FontBakedInit;
+    loader->FontBakedDestroy = ImGui_ImplFreeType_FontBakedDestroy;
+    loader->FontBakedLoadGlyph = ImGui_ImplFreeType_FontBakedLoadGlyph;
+    loader->FontBakedSrcLoaderDataSize = sizeof(ImGui_ImplFreeType_FontSrcBakedData);
+    return loader;
 }
 
 void ImGuiFreeType::SetAllocatorFunctions(void* (*alloc_func)(size_t sz, void* user_data), void (*free_func)(void* ptr, void* user_data), void* user_data)