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Backends: WebGPU: minor build fix for Emscripten 5.0.0 (note: our examples currently don't build with 5.0.1).

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Getting 'warning: unused function 'CreateWGPUSurface' [-Wunused-function]' in some build paths.
cc #9246
This commit is contained in:
ocornut
2026-02-16 18:04:07 +01:00
parent acdaaef625
commit ff673d31df
4 changed files with 15 additions and 5 deletions
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9
backends/imgui_impl_wgpu.h
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@@ -33,12 +33,21 @@
// 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>
#ifdef __EMSCRIPTEN_MAJOR__
#if (__EMSCRIPTEN_MAJOR__ >= 4) && (__EMSCRIPTEN_MINOR__ >= 0) && (__EMSCRIPTEN_TINY__ >= 10)
#define IMGUI_IMPL_WEBGPU_BACKEND_DAWN
#else
#define IMGUI_IMPL_WEBGPU_BACKEND_WGPU
#endif
#else
#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
#endif
#include <webgpu/webgpu.h>
#if defined(IMGUI_IMPL_WEBGPU_BACKEND_WGPU) && !defined(__EMSCRIPTEN__)

1
docs/CHANGELOG.txt
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@@ -259,6 +259,7 @@ Other Changes:
selects `VkSwapchainCreateInfoKHR`'s `compositeAlpha` value based on
`cap.supportedCompositeAlpha`, which seems to be required on some Android
devices. (#8784) [@FelixStach]
- WebGPU: fixes for Emscripten 5.0.0 (note: our examples currently don't build with 5.0.1).
- Win32: handle `WM_IME_CHAR`/`WM_IME_COMPOSITION` to support Unicode inputs on
MBCS (non-Unicode) Windows. (#9099, #3653, #5961) [@ulhc, @ocornut, @Othereum]
- Win32: minor optimization not submitting gamepad input if packet number has not

6
examples/example_glfw_wgpu/main.cpp
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@@ -40,8 +40,8 @@ static int wgpu_surface_width = 1280;
static int wgpu_surface_height = 800;
// Forward declarations
static bool InitWGPU(GLFWwindow* window);
static WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, GLFWwindow* window);
static bool InitWGPU(GLFWwindow* window);
WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, GLFWwindow* window);
static void glfw_error_callback(int error, const char* description)
{
@@ -408,7 +408,7 @@ static WGPUDevice RequestDevice(WGPUAdapter& adapter)
#endif // __EMSCRIPTEN__
#endif // IMGUI_IMPL_WEBGPU_BACKEND_WGPU
static bool InitWGPU(GLFWwindow* window)
bool InitWGPU(GLFWwindow* window)
{
WGPUTextureFormat preferred_fmt = WGPUTextureFormat_Undefined; // acquired from SurfaceCapabilities

4
examples/example_sdl3_wgpu/main.cpp
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@@ -40,8 +40,8 @@ static int wgpu_surface_width = 1280;
static int wgpu_surface_height = 800;
// Forward declarations
static bool InitWGPU(SDL_Window* window);
static WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window);
static bool InitWGPU(SDL_Window* window);
WGPUSurface CreateWGPUSurface(const WGPUInstance& instance, SDL_Window* window);
static void ResizeSurface(int width, int height)
{