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Backends: WebGPU: round framebuffer dimensions instead of truncating. (#9538, #9515, #8628)

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SlowRiot 2026-09-05 17:18:09 +01:00 • committed by ocornut
parent 96b6eb7728
commit 080319c4ce
1 changed files with 5 additions and 4 deletions
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9
backends/imgui_impl_wgpu.cpp
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@ -20,6 +20,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2026-09-07: Round framebuffer dimensions to the nearest integer instead of truncating them. (#9538, 9515, #8628)
// 2026-08-31: Update to compile with wgpu-native 29.0. (#9377, #9532, #9530)
// 2026-08-18: Fixed passing non-integer sizes to `wgpuRenderPassEncoderSetViewport() when FramebufferScale is >1.0f. (#9515, #8628)
// 2026-04-23: Added support for standard draw callbacks (in platform_io): DrawCallback_ResetRenderState, DrawCallback_SetSamplerLinear, DrawCallback_SetSamplerNearest. (#9378)
@ -436,8 +437,8 @@ static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPas
}
// Setup viewport
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x + 0.5f);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y + 0.5f);
wgpuRenderPassEncoderSetViewport(ctx, 0, 0, (float)fb_width, (float)fb_height, 0, 1);
// Bind shader and vertex buffers
@ -460,8 +461,8 @@ static void ImGui_ImplWGPU_DrawCallback_SetSamplerNearest(const ImDrawList*, con
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
{
// Avoid rendering when minimized
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x + 0.5f);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y + 0.5f);
if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdLists.Size == 0)
return;