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Backends: WebGPU: Fixing an issue when opening a popup in the wgpu backend (#7191)

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Amend 2b0bd40b9
This commit is contained in:
Axel Paris 2024-01-03 11:25:19 +01:00 committed by ocornut
parent 718fa0eec6
commit e8dd47effa
2 changed files with 11 additions and 1 deletions
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10
backends/imgui_impl_wgpu.cpp
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@ -329,7 +329,9 @@ static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPas
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
if (fb_width <= 0 || fb_height <= 0 || draw_data->CmdListsCount == 0)
return;
// FIXME: Assuming that this only gets called once per frame!
@ -448,6 +450,12 @@ void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
// Clamp to viewport as wgpuRenderPassEncoderSetScissorRect() won't accept values that are off bounds
if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;

2
docs/CHANGELOG.txt
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@ -96,6 +96,8 @@ Other changes:
compiling in MBCS mode. (#7174) [@kimidaisuki22]
- Backends: Vulkan: Fixed mismatching allocator passed to vkCreateCommandPool() vs
vkDestroyCommandPool(). (#7075) [@FoonTheRaccoon]
- Backends: WebGPU: Fixed wgpuRenderPassEncoderSetScissorRect() crash when rendering modal
window's dimming layer, which has an unclipped value in ImDrawCmd::ClipRect. (#7191) [@aparis69]
- Examples: GLFW+Emscripten: Fixed examples not consistently resizing according to host canvas.
(#6751) [@Traveller23, @ypujante]