alias end of the vertex buffer as a tempoary array

ocornut · Dec 31, 2018 · f38dd95 · f38dd95
1 parent 939d53b
commit f38dd95
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/imgui_draw.cpp b/imgui_draw.cpp
@@ -861,7 +861,7 @@ void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_coun
         }
 
         // Compute normals
-        ImVec2* temp_normals = (ImVec2*)alloca(points_count * sizeof(ImVec2));
+        ImVec2* temp_normals = (ImVec2*)((size_t)(_VtxWritePtr + vtx_count) & ~(alignof(ImVec2) - 1)) - points_count;
         for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
         {
             const ImVec2& p0 = points[i0];