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DrawList: fixed out of bounds access of baked corner based on thickness

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This commit is contained in:
Mikko Mononen
2026-05-28 10:44:37 +03:00
committed by ocornut
parent 95f7865835
commit 9f9fe6908b
1 changed files with 2 additions and 1 deletions
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3
imgui_draw.cpp
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@@ -2583,9 +2583,10 @@ void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, fl
return;
}
if ((Flags & ImDrawListFlags_RoundCornersUseTex) && s_thickness <= IM_DRAWLIST_TEX_CORNERS_THICKNESS_MAX && s_rounding <= IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX)
if ((Flags & ImDrawListFlags_RoundCornersUseTex) && s_thickness < IM_DRAWLIST_TEX_CORNERS_THICKNESS_MAX && s_rounding <= IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX)
{
// Pixel aligned rect with round corners rendered using baked textures.
IM_ASSERT_PARANOID(s_thickness > 0 && s_rounding > 0);
const int size = ImMax(s_rounding, s_thickness); // This is matching the baking calculations.
const int idx = (s_thickness * IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX) + s_rounding - 1;
IM_ASSERT_PARANOID((_Data->Font->OwnerAtlas->Flags & ImFontAtlasFlags_NoBakedRoundCorners) == 0);