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Fix Dear ImGui colors on Big Endian systems

Browse source 
https://github.com/dhewm/dhewm3/issues/625#issuecomment-2448341504
confirms that it's broken

for the fix, see
https://github.com/ocornut/imgui/issues/6732#issuecomment-1682918657
https://github.com/ocornut/imgui/pull/5190
This commit is contained in:
Daniel Gibson 2024-10-30 22:39:10 +01:00
parent 21f2e3a56a
commit af13c20614
1 changed files with 10 additions and 0 deletions
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10
neo/libs/imgui/imconfig.h
View file

@ -137,3 +137,13 @@ namespace ImGui
void MyFunction(const char* name, MyMatrix44* mtx);
}
*/
// DG: on Big Endian systems the order of color channels in an uint32 color is inverted.
// this seems to be the official way to support Big Endian platforms in ImGUI:
#if D3_IS_BIG_ENDIAN
#define IM_COL32_R_SHIFT 24
#define IM_COL32_G_SHIFT 16
#define IM_COL32_B_SHIFT 8
#define IM_COL32_A_SHIFT 0
#define IM_COL32_A_MASK 0x000000FF
#endif