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update dear imgui from 1.92.6-docking to 1.92.7-docking

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This commit is contained in:
Sven Balzer
2026-04-02 20:22:14 +02:00
parent b549728a24
commit 85d1832a0c
40 changed files with 1823 additions and 1130 deletions
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libs/imgui/backends/imgui_impl_wgpu.cpp
+91 -57
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@@ -22,6 +22,8 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 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)
// 2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
// 2025-06-12: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. (#8465)
@@ -57,17 +59,14 @@
#include <stdio.h>
// One of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided. See imgui_impl_wgpu.h for more details.
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) == defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
#error Exactly one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be defined!
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
#error Exactly one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN, IMGUI_IMPL_WEBGPU_BACKEND_WGPU or IMGUI_IMPL_WEBGPU_BACKEND_WGVK must be defined!
#endif
// This condition is true when it's built with EMSCRIPTEN using -sUSE_WEBGPU=1 flag (deprecated from 4.0.10)
// This condition is false for all other 3 cases: WGPU-Native, DAWN-Native or DAWN-EMSCRIPTEN (using --use-port=emdawnwebgpu flag)
#if defined(__EMSCRIPTEN__) && defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN
#error Emscripten <4.0.10 with '-sUSE_WEBGPU=1' is not supported anymore.
#endif
#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
#if defined IMGUI_IMPL_WEBGPU_BACKEND_DAWN || defined IMGUI_IMPL_WEBGPU_BACKEND_WGVK
// Dawn renamed WGPUProgrammableStageDescriptor to WGPUComputeState (see: https://github.com/webgpu-native/webgpu-headers/pull/413)
// Using type alias until WGPU adopts the same naming convention (#8369)
using WGPUProgrammableStageDescriptor = WGPUComputeState;
@@ -189,6 +188,60 @@ fn main(in: VertexOutput) -> @location(0) vec4<f32> {
}
)";
// Same shader as __shader_vert_wgsl[] but compiled as SPIRV.
// 'wgslc -o vert.spv vert.wgsl' + 'binary_to_compressed_c -u8 -nocompress vert.spv'
static const unsigned char __shader_vert_spirv[1996] =
{
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};
// Same shader as __shader_frag_wgsl[] but compiled as SPIRV.
// 'wgslc -o frag.spv frag.wgsl' + 'binary_to_compressed_c -u8 -nocompress frag.spv'
static const unsigned char __shader_frag_spirv[1392] =
{
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};
static void SafeRelease(ImDrawIdx*& res)
{
if (res)
@@ -259,19 +312,13 @@ static void SafeRelease(FrameResources& res)
SafeRelease(res.VertexBufferHost);
}
static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const char* wgsl_source)
static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleWGSL(const char* wgsl_source)
{
ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
WGPUShaderSourceWGSL wgsl_desc = {};
wgsl_desc.chain.sType = WGPUSType_ShaderSourceWGSL;
wgsl_desc.code = { wgsl_source, WGPU_STRLEN };
#else
WGPUShaderModuleWGSLDescriptor wgsl_desc = {};
wgsl_desc.chain.sType = WGPUSType_ShaderModuleWGSLDescriptor;
wgsl_desc.code = wgsl_source;
#endif
WGPUShaderModuleDescriptor desc = {};
desc.nextInChain = (WGPUChainedStruct*)&wgsl_desc;
@@ -279,11 +326,26 @@ static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(const c
WGPUProgrammableStageDescriptor stage_desc = {};
stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
stage_desc.entryPoint = { "main", WGPU_STRLEN };
#else
stage_desc.entryPoint = "main";
#endif
return stage_desc;
}
static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModuleSPIRV(const void* spirv_binary, size_t spirv_length)
{
ImGui_ImplWGPU_Data* bd = ImGui_ImplWGPU_GetBackendData();
WGPUShaderSourceSPIRV spirv_desc = {};
spirv_desc.chain.sType = WGPUSType_ShaderSourceSPIRV;
spirv_desc.code = (const uint32_t *)spirv_binary;
spirv_desc.codeSize = ((uint32_t)(spirv_length / 4));
WGPUShaderModuleDescriptor desc = {};
desc.nextInChain = (WGPUChainedStruct*)&spirv_desc;
WGPUProgrammableStageDescriptor stage_desc = {};
stage_desc.module = wgpuDeviceCreateShaderModule(bd->wgpuDevice, &desc);
stage_desc.entryPoint = { "main", WGPU_STRLEN };
return stage_desc;
}
@@ -402,11 +464,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
WGPUBufferDescriptor vb_desc =
{
nullptr,
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
{ "Dear ImGui Vertex buffer", WGPU_STRLEN, },
#else
"Dear ImGui Vertex buffer",
#endif
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Vertex,
MEMALIGN(fr->VertexBufferSize * sizeof(ImDrawVert), 4),
false
@@ -430,11 +488,7 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
WGPUBufferDescriptor ib_desc =
{
nullptr,
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
{ "Dear ImGui Index buffer", WGPU_STRLEN, },
#else
"Dear ImGui Index buffer",
#endif
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Index,
MEMALIGN(fr->IndexBufferSize * sizeof(ImDrawIdx), 4),
false
@@ -458,8 +512,8 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
}
int64_t vb_write_size = MEMALIGN((char*)vtx_dst - (char*)fr->VertexBufferHost, 4);
int64_t ib_write_size = MEMALIGN((char*)idx_dst - (char*)fr->IndexBufferHost, 4);
wgpuQueueWriteBuffer(bd->defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, vb_write_size);
wgpuQueueWriteBuffer(bd->defaultQueue, fr->IndexBuffer, 0, fr->IndexBufferHost, ib_write_size);
wgpuQueueWriteBuffer(bd->defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, (size_t)vb_write_size);
wgpuQueueWriteBuffer(bd->defaultQueue, fr->IndexBuffer, 0, fr->IndexBufferHost, (size_t)ib_write_size);
// Setup desired render state
ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
@@ -566,11 +620,7 @@ void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
// Create texture
WGPUTextureDescriptor tex_desc = {};
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
tex_desc.label = { "Dear ImGui Texture", WGPU_STRLEN };
#else
tex_desc.label = "Dear ImGui Texture";
#endif
tex_desc.dimension = WGPUTextureDimension_2D;
tex_desc.size.width = tex->Width;
tex_desc.size.height = tex->Height;
@@ -611,20 +661,12 @@ void ImGui_ImplWGPU_UpdateTexture(ImTextureData* tex)
// Update full texture or selected blocks. We only ever write to textures regions which have never been used before!
// This backend choose to use tex->UpdateRect but you can use tex->Updates[] to upload individual regions.
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
WGPUTexelCopyTextureInfo dst_view = {};
#else
WGPUImageCopyTexture dst_view = {};
#endif
dst_view.texture = backend_tex->Texture;
dst_view.mipLevel = 0;
dst_view.origin = { (uint32_t)upload_x, (uint32_t)upload_y, 0 };
dst_view.aspect = WGPUTextureAspect_All;
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
WGPUTexelCopyBufferLayout layout = {};
#else
WGPUTextureDataLayout layout = {};
#endif
layout.offset = 0;
layout.bytesPerRow = tex->Width * tex->BytesPerPixel;
layout.rowsPerImage = upload_h;
@@ -642,11 +684,7 @@ static void ImGui_ImplWGPU_CreateUniformBuffer()
WGPUBufferDescriptor ub_desc =
{
nullptr,
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
{ "Dear ImGui Uniform buffer", WGPU_STRLEN, },
#else
"Dear ImGui Uniform buffer",
#endif
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Uniform,
MEMALIGN(sizeof(Uniforms), 16),
false
@@ -703,14 +741,15 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
graphics_pipeline_desc.layout = wgpuDeviceCreatePipelineLayout(bd->wgpuDevice, &layout_desc);
// Create the vertex shader
WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__shader_vert_wgsl);
WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModuleWGSL(__shader_vert_wgsl);
if (!vertex_shader_desc.module) vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModuleSPIRV(__shader_vert_spirv, sizeof(__shader_vert_spirv));
graphics_pipeline_desc.vertex.module = vertex_shader_desc.module;
graphics_pipeline_desc.vertex.entryPoint = vertex_shader_desc.entryPoint;
// Vertex input configuration
WGPUVertexAttribute attribute_desc[] =
{
#ifdef IMGUI_IMPL_WEBGPU_BACKEND_DAWN
#if defined IMGUI_IMPL_WEBGPU_BACKEND_DAWN || defined IMGUI_IMPL_WEBGPU_BACKEND_WGVK
{ nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, pos), 0 },
{ nullptr, WGPUVertexFormat_Float32x2, (uint64_t)offsetof(ImDrawVert, uv), 1 },
{ nullptr, WGPUVertexFormat_Unorm8x4, (uint64_t)offsetof(ImDrawVert, col), 2 },
@@ -731,7 +770,8 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
graphics_pipeline_desc.vertex.buffers = buffer_layouts;
// Create the pixel shader
WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__shader_frag_wgsl);
WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModuleWGSL(__shader_frag_wgsl);
if (!pixel_shader_desc.module) pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModuleSPIRV(__shader_frag_spirv, sizeof(__shader_frag_spirv));
// Create the blending setup
WGPUBlendState blend_state = {};
@@ -758,11 +798,7 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
// Create depth-stencil State
WGPUDepthStencilState depth_stencil_state = {};
depth_stencil_state.format = bd->depthStencilFormat;
#if !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU_EMSCRIPTEN)
depth_stencil_state.depthWriteEnabled = WGPUOptionalBool_False;
#else
depth_stencil_state.depthWriteEnabled = false;
#endif
depth_stencil_state.depthCompare = WGPUCompareFunction_Always;
depth_stencil_state.stencilFront.compare = WGPUCompareFunction_Always;
depth_stencil_state.stencilFront.failOp = WGPUStencilOperation_Keep;
@@ -847,11 +883,9 @@ bool ImGui_ImplWGPU_Init(ImGui_ImplWGPU_InitInfo* init_info)
io.BackendRendererName = "imgui_impl_wgpu (Dawn, Native)";
#endif
#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
#if defined(__EMSCRIPTEN__)
io.BackendRendererName = "imgui_impl_wgpu (WGPU, Emscripten)"; // linked using EMSCRIPTEN with "-sUSE_WEBGPU=1" flag, deprecated from EMSCRIPTEN 4.0.10
#else
io.BackendRendererName = "imgui_impl_wgpu (WGPU, Native)";
#endif
#elif defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
io.BackendRendererName = "imgui_impl_wgpu (WGVK, Native)";
#endif
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures; // We can honor ImGuiPlatformIO::Textures[] requests during render.
@@ -923,7 +957,7 @@ void ImGui_ImplWGPU_NewFrame()
bool ImGui_ImplWGPU_IsSurfaceStatusError(WGPUSurfaceGetCurrentTextureStatus status)
{
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
return (status == WGPUSurfaceGetCurrentTextureStatus_Error);
#else
return (status == WGPUSurfaceGetCurrentTextureStatus_OutOfMemory || status == WGPUSurfaceGetCurrentTextureStatus_DeviceLost);
@@ -940,7 +974,7 @@ bool ImGui_ImplWGPU_IsSurfaceStatusSubOptimal(WGPUSurfaceGetCurrentTextureStatus
}
// Helpers to obtain a string
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN)
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) || defined(IMGUI_IMPL_WEBGPU_BACKEND_WGVK)
const char* ImGui_ImplWGPU_GetErrorTypeName(WGPUErrorType type)
{
switch (type)