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Tables: Fixed unaligned accesses when using TableSetBgColor(ImGuiTableBgTarget_CellBg). (#3872)

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ImSpanAllocator: Support for alignment.
This commit is contained in:
ocornut
2021-03-04 09:52:00 +01:00
parent 1ddaff83d8
commit d8c88bd943
3 changed files with 15 additions and 11 deletions
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6
imgui_tables.cpp
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@ -538,9 +538,9 @@ void ImGui::TableBeginInitMemory(ImGuiTable* table, int columns_count)
{
// Allocate single buffer for our arrays
ImSpanAllocator<3> span_allocator;
span_allocator.ReserveBytes(0, columns_count * sizeof(ImGuiTableColumn));
span_allocator.ReserveBytes(1, columns_count * sizeof(ImGuiTableColumnIdx));
span_allocator.ReserveBytes(2, columns_count * sizeof(ImGuiTableCellData));
span_allocator.Reserve(0, columns_count * sizeof(ImGuiTableColumn));
span_allocator.Reserve(1, columns_count * sizeof(ImGuiTableColumnIdx));
span_allocator.Reserve(2, columns_count * sizeof(ImGuiTableCellData), 4);
table->RawData = IM_ALLOC(span_allocator.GetArenaSizeInBytes());
memset(table->RawData, 0, span_allocator.GetArenaSizeInBytes());
span_allocator.SetArenaBasePtr(table->RawData);