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Nav, Docking: fix dimming crash with accessing zero-cmd ImDrawList (amend 1dc3af3, 23ef6c1)

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# Conflicts:
#	imgui.cpp
This commit is contained in:
ocornut
2021-12-06 18:49:57 +01:00
parent 20e040c858
commit 657073a650
1 changed files with 6 additions and 6 deletions
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12
imgui.cpp
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@@ -2476,7 +2476,7 @@ bool ImGuiListClipper::Step()
IM_ASSERT(table->RowPosY1 == StartPosY && table->RowPosY2 == window->DC.CursorPos.y); IM_ASSERT(table->RowPosY1 == StartPosY && table->RowPosY2 == window->DC.CursorPos.y);
ItemsHeight = (window->DC.CursorPos.y - StartPosY) / (float)(DisplayEnd - DisplayStart); ItemsHeight = (window->DC.CursorPos.y - StartPosY) / (float)(DisplayEnd - DisplayStart);
float affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision(StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y); bool affected_by_floating_point_precision = ImIsFloatAboveGuaranteedIntegerPrecision(StartPosY) || ImIsFloatAboveGuaranteedIntegerPrecision(window->DC.CursorPos.y);
if (affected_by_floating_point_precision) if (affected_by_floating_point_precision)
ItemsHeight = window->DC.PrevLineSize.y + g.Style.ItemSpacing.y; // FIXME: Technically wouldn't allow multi-line entries. ItemsHeight = window->DC.PrevLineSize.y + g.Style.ItemSpacing.y; // FIXME: Technically wouldn't allow multi-line entries.
@@ -4456,13 +4456,13 @@ static void ImGui::RenderDimmedBackgroundBehindWindow(ImGuiWindow* window, ImU32
// Draw behind window by moving the draw command at the FRONT of the draw list // Draw behind window by moving the draw command at the FRONT of the draw list
{ {
ImDrawList* draw_list = window->RootWindow->DrawList; ImDrawList* draw_list = window->RootWindow->DrawList;
draw_list->AddDrawCmd();
draw_list->PushClipRect(viewport_rect.Min - ImVec2(1, 1), viewport_rect.Max + ImVec2(1, 1), false); // Ensure ImDrawCmd are not merged draw_list->PushClipRect(viewport_rect.Min - ImVec2(1, 1), viewport_rect.Max + ImVec2(1, 1), false); // Ensure ImDrawCmd are not merged
draw_list->AddRectFilled(viewport_rect.Min, viewport_rect.Max, col); draw_list->AddRectFilled(viewport_rect.Min, viewport_rect.Max, col);
ImDrawCmd cmd = draw_list->CmdBuffer.back(); ImDrawCmd cmd = draw_list->CmdBuffer.back();
IM_ASSERT(cmd.ElemCount == 6); IM_ASSERT(cmd.ElemCount == 6);
draw_list->CmdBuffer.pop_back(); draw_list->CmdBuffer.pop_back();
draw_list->CmdBuffer.push_front(cmd); draw_list->CmdBuffer.push_front(cmd);
draw_list->PopClipRect();
} }
} }
@@ -4608,6 +4608,10 @@ void ImGui::Render()
AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetBackgroundDrawList(viewport)); AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetBackgroundDrawList(viewport));
} }
// Draw modal/window whitening backgrounds
if (first_render_of_frame)
RenderDimmedBackgrounds();
// Add ImDrawList to render // Add ImDrawList to render
ImGuiWindow* windows_to_render_top_most[2]; ImGuiWindow* windows_to_render_top_most[2];
windows_to_render_top_most[0] = (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoBringToFrontOnFocus)) ? g.NavWindowingTarget->RootWindow : NULL; windows_to_render_top_most[0] = (g.NavWindowingTarget && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_NoBringToFrontOnFocus)) ? g.NavWindowingTarget->RootWindow : NULL;
@@ -4623,10 +4627,6 @@ void ImGui::Render()
if (windows_to_render_top_most[n] && IsWindowActiveAndVisible(windows_to_render_top_most[n])) // NavWindowingTarget is always temporarily displayed as the top-most window if (windows_to_render_top_most[n] && IsWindowActiveAndVisible(windows_to_render_top_most[n])) // NavWindowingTarget is always temporarily displayed as the top-most window
AddRootWindowToDrawData(windows_to_render_top_most[n]); AddRootWindowToDrawData(windows_to_render_top_most[n]);
// Draw modal/window whitening backgrounds
if (first_render_of_frame)
RenderDimmedBackgrounds();
// Setup ImDrawData structures for end-user // Setup ImDrawData structures for end-user
g.IO.MetricsRenderVertices = g.IO.MetricsRenderIndices = 0; g.IO.MetricsRenderVertices = g.IO.MetricsRenderIndices = 0;
for (int n = 0; n < g.Viewports.Size; n++) for (int n = 0; n < g.Viewports.Size; n++)