refactor(codegen): Use gpu_init helper in seq_compiler.py

Refactors the timeline code generator (`tools/seq_compiler.py`) to use the `gpu_init_color_attachment` helper function from `src/gpu/gpu.h`.

This change removes platform-specific `#if !defined(DEMO_CROSS_COMPILE_WIN32)` directives from the generated C++ files (`timeline.cc`, `test_timeline.cc`) and centralizes the platform-aware initialization logic within the existing helper function.

The generated code is now cleaner and easier to maintain. Both native macOS and Windows cross-compilation builds are confirmed to be successful.

1 files changed, 3 insertions, 14 deletions

diff --git a/tools/seq_compiler.py b/tools/seq_compiler.py
index 8c92996..dec3ab1 100755
--- a/tools/seq_compiler.py
+++ b/tools/seq_compiler.py
@@ -639,13 +639,7 @@ void RenderTimeline(WGPUSurface surface, float time, int width, int height,
 
     // Clear source
     WGPURenderPassColorAttachment clear_attach = {};
-    clear_attach.view = g_source_view;
-    #if !defined(DEMO_CROSS_COMPILE_WIN32)
-    clear_attach.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
-#endif
-    clear_attach.loadOp = WGPULoadOp_Clear;
-    clear_attach.storeOp = WGPUStoreOp_Store;
-    clear_attach.clearValue = {0.0, 0.0, 0.0, 1.0};
+    gpu_init_color_attachment(clear_attach, g_source_view);
 
     WGPURenderPassDescriptor clear_desc = {};
     clear_desc.colorAttachmentCount = 1;
@@ -664,15 +658,10 @@ void RenderTimeline(WGPUSurface surface, float time, int width, int height,
 
     if (surface_texture.status == WGPUSurfaceGetCurrentTextureStatus_SuccessOptimal) {
         WGPURenderPassColorAttachment blit_attach = {};
-        blit_attach.view = surface_texture.texture
+        WGPUTextureView blit_view = surface_texture.texture
             ? wgpuTextureCreateView(surface_texture.texture, nullptr)
             : nullptr;
-        #if !defined(DEMO_CROSS_COMPILE_WIN32)
-        blit_attach.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
-#endif
-        blit_attach.loadOp = WGPULoadOp_Clear;
-        blit_attach.storeOp = WGPUStoreOp_Store;
-        blit_attach.clearValue = {0.0, 0.0, 0.0, 1.0};
+        gpu_init_color_attachment(blit_attach, blit_view);
 
         WGPURenderPassDescriptor blit_desc = {};
         blit_desc.colorAttachmentCount = 1;