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Backends: WebGPU: update to compile with Dawn and Emscripten's 4.0.10+ '--use-port=emdawnwebgpu' ports. (#8381, #8898)

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BrutPitt 2025-10-16 18:13:34 +02:00 • committed by ocornut
parent 36de604a5b
commit 3dc511c71d
3 changed files with 65 additions and 37 deletions
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23
backends/imgui_impl_wgpu.h
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@ -1,11 +1,14 @@
// dear imgui: Renderer for WebGPU
// This needs to be used along with a Platform Binding (e.g. GLFW)
// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
// This needs to be used along with a Platform Binding (e.g. GLFW, SDL2, SDL3)
// (Please note that WebGPU is a recent API, may not be supported by all browser, and its ecosystem is generally a mess)
// Important note to dawn and/or wgpu users: when targeting native platforms (i.e. NOT emscripten),
// one of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU must be provided.
// When targeting native platforms:
// - One of IMGUI_IMPL_WEBGPU_BACKEND_DAWN or IMGUI_IMPL_WEBGPU_BACKEND_WGPU *must* be provided.
// When targeting Emscripten:
// - We now defaults to IMGUI_IMPL_WEBGPU_BACKEND_DAWN is Emscripten version is 4.0.10+, which correspond to using Emscripten '--use-port=emdawnwebgpu'.
// - We can still define IMGUI_IMPL_WEBGPU_BACKEND_WGPU to use Emscripten '-s USE_WEBGPU=1' which is marked as obsolete by Emscripten.
// Add #define to your imconfig.h file, or as a compilation flag in your build system.
// This requirement will be removed once WebGPU stabilizes and backends converge on a unified interface.
// This requirement may be removed once WebGPU stabilizes and backends converge on a unified interface.
//#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
//#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
@ -27,6 +30,16 @@
#include "imgui.h" // IMGUI_IMPL_API
#ifndef IMGUI_DISABLE
// Setup Emscripten default if not specified.
#if defined(__EMSCRIPTEN__) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_DAWN) && !defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU)
#include <emscripten/version.h>
#if (__EMSCRIPTEN_major__ >= 4) && (__EMSCRIPTEN_minor__ >= 0) && (__EMSCRIPTEN_tiny__ >= 10)
#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
#else
#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
#endif
#endif
#include <webgpu/webgpu.h>
// Initialization data, for ImGui_ImplWGPU_Init()