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Rendering: defer responsability of calling _PopUnusedDrawCmd() later so RenderDimmedBackgrounds()/RenderMouseCursor() don't need to deal with the side-effects (#4857, #4317)

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This commit is contained in:
ocornut 2022-01-27 16:59:24 +01:00
parent 075f4ac661
commit 718daa153d
1 changed files with 6 additions and 6 deletions
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12
imgui.cpp
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@ -4551,11 +4551,10 @@ static void AddWindowToSortBuffer(ImVector<ImGuiWindow*>* out_sorted_windows, Im
static void AddDrawListToDrawData(ImVector<ImDrawList*>* out_list, ImDrawList* draw_list)
{
// Remove trailing command if unused.
// Technically we could return directly instead of popping, but this make things looks neat in Metrics/Debugger window as well.
draw_list->_PopUnusedDrawCmd();
if (draw_list->CmdBuffer.Size == 0)
return;
if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL)
return;
// Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
// May trigger for you if you are using PrimXXX functions incorrectly.
@ -4641,8 +4640,10 @@ static void SetupViewportDrawData(ImGuiViewportP* viewport, ImVector<ImDrawList*
draw_data->FramebufferScale = io.DisplayFramebufferScale;
for (int n = 0; n < draw_lists->Size; n++)
{
draw_data->TotalVtxCount += draw_lists->Data[n]->VtxBuffer.Size;
draw_data->TotalIdxCount += draw_lists->Data[n]->IdxBuffer.Size;
ImDrawList* draw_list = draw_lists->Data[n];
draw_list->_PopUnusedDrawCmd();
draw_data->TotalVtxCount += draw_list->VtxBuffer.Size;
draw_data->TotalIdxCount += draw_list->IdxBuffer.Size;
}
}
@ -4745,7 +4746,6 @@ static void ImGui::RenderDimmedBackgrounds()
window->DrawList->PushClipRect(viewport->Pos, viewport->Pos + viewport->Size);
window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha), window->WindowRounding, 0, 3.0f);
window->DrawList->PopClipRect();
window->DrawList->_PopUnusedDrawCmd(); // Since are past the calls to AddDrawListToDrawData() we don't have a _PopUnusedDrawCmd() running on commands.
}
}