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Backends: WebGPU: fixed rendering when a depth buffer is enabled. (#5869)

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Peter Nimmervoll 2022-11-07 21:35:05 +01:00 committed by ocornut
parent 7380b9816e
commit 00b6370848
4 changed files with 15 additions and 12 deletions
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14
backends/imgui_impl_wgpu.cpp
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@ -13,9 +13,10 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2022-11-10: Fixed rendering when a depth buffer is enabled. Added 'WGPUTextureFormat depth_format' parameter to ImGui_ImplWGPU_Init().
// 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
// 2021-11-29: Passing explicit buffer sizes to wgpuRenderPassEncoderSetVertexBuffer()/wgpuRenderPassEncoderSetIndexBuffer().
// 2021-08-24: Fix for latest specs.
// 2021-08-24: Fixed for latest specs.
// 2021-05-24: Add support for draw_data->FramebufferScale.
// 2021-05-19: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-05-16: Update to latest WebGPU specs (compatible with Emscripten 2.0.20 and Chrome Canary 92).
@ -34,6 +35,7 @@ extern ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed = 0);
static WGPUDevice g_wgpuDevice = nullptr;
static WGPUQueue g_defaultQueue = nullptr;
static WGPUTextureFormat g_renderTargetFormat = WGPUTextureFormat_Undefined;
static WGPUTextureFormat g_depthStencilFormat = WGPUTextureFormat_Undefined;
static WGPURenderPipeline g_pipelineState = nullptr;
struct RenderResources
@ -602,12 +604,11 @@ bool ImGui_ImplWGPU_CreateDeviceObjects()
// Create depth-stencil State
WGPUDepthStencilState depth_stencil_state = {};
depth_stencil_state.depthBias = 0;
depth_stencil_state.depthBiasClamp = 0;
depth_stencil_state.depthBiasSlopeScale = 0;
depth_stencil_state.format = g_depthStencilFormat;
depth_stencil_state.depthWriteEnabled = false;
// Configure disabled depth-stencil state
graphics_pipeline_desc.depthStencil = nullptr;
graphics_pipeline_desc.depthStencil = g_depthStencilFormat == WGPUTextureFormat_Undefined ? nullptr : &depth_stencil_state;
g_pipelineState = wgpuDeviceCreateRenderPipeline(g_wgpuDevice, &graphics_pipeline_desc);
@ -658,7 +659,7 @@ void ImGui_ImplWGPU_InvalidateDeviceObjects()
SafeRelease(g_pFrameResources[i]);
}
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format)
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, WGPUTextureFormat depth_format)
{
// Setup backend capabilities flags
ImGuiIO& io = ImGui::GetIO();
@ -668,6 +669,7 @@ bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextur
g_wgpuDevice = device;
g_defaultQueue = wgpuDeviceGetQueue(g_wgpuDevice);
g_renderTargetFormat = rt_format;
g_depthStencilFormat = depth_format;
g_pFrameResources = new FrameResources[num_frames_in_flight];
g_numFramesInFlight = num_frames_in_flight;
g_frameIndex = UINT_MAX;

4
backends/imgui_impl_wgpu.h
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@ -6,7 +6,7 @@
// [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can 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.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
@ -15,7 +15,7 @@
#include "imgui.h" // IMGUI_IMPL_API
#include <webgpu/webgpu.h>
IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format);
IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format, WGPUTextureFormat depth_format = WGPUTextureFormat_Undefined);
IMGUI_IMPL_API void ImGui_ImplWGPU_Shutdown();
IMGUI_IMPL_API void ImGui_ImplWGPU_NewFrame();
IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder);

7
docs/CHANGELOG.txt
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@ -206,6 +206,9 @@ Other Changes:
(e.g. for multi-viewport support) and don't capture mouse when drag and dropping. (#5710)
- Backends: Win32: Convert WM_CHAR values with MultiByteToWideChar() when window class was
registered as MBCS (not Unicode). (#5725, #1807, #471, #2815, #1060) [@or75, @ocornut]
- Backends: OSX: Fixed mouse inputs on flipped views. (#5756) [@Nemirtingas]
- Backends: OSX: Fixed mouse coordinate before clicking on the host window. (#5842) [@maezawa-akira]
- Backends: OSX: Fixes to support full app creation in C++. (#5403) [@stack]
- Backends: OpenGL3: Reverted use of glBufferSubData(), too many corruptions issues were reported,
and old leaks issues seemingly can't be reproed with Intel drivers nowadays (revert earlier changes).
(#4468, #4504, #3381, #2981, #4825, #4832, #5127).
@ -213,9 +216,7 @@ Other Changes:
- Backends: Metal: Add dispatch synchronization. (#5447) [@luigifcruz]
- Backends: Metal: Update deprecated property 'sampleCount'->'rasterSampleCount'. (#5603) [@dcvz]
- Backends: Vulkan: Added experimental ImGui_ImplVulkan_RemoveTexture() for api symetry. (#914, #5738).
- Backends: OSX: Fixed mouse inputs on flipped views. (#5756) [@Nemirtingas]
- Backends: OSX: Fixed mouse coordinate before clicking on the host window. (#5842) [@maezawa-akira]
- Backends: OSX: Fixes to support full app creation in C++. (#5403) [@stack]
- Backends: WebGPU: fixed rendering when a depth buffer is enabled. (#5869) [@brainlag]
-----------------------------------------------------------------------

2
examples/example_emscripten_wgpu/main.cpp
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@ -76,7 +76,7 @@ int main(int, char**)
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOther(window, true);
ImGui_ImplWGPU_Init(wgpu_device, 3, WGPUTextureFormat_RGBA8Unorm);
ImGui_ImplWGPU_Init(wgpu_device, 3, WGPUTextureFormat_RGBA8Unorm, WGPUTextureFormat_Undefined);
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.