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fix overflow check overflowing in R_DrawRepeatMaskedColumn

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fixes renderer lock ups with transparent textures in software renderer
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Alug 2024-03-30 00:04:42 +01:00
parent 62294dfe35
commit 2172c9ddb2
1 changed files with 1 additions and 1 deletions
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2
src/r_segs.c
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@ -681,7 +681,7 @@ static void R_DrawRepeatMaskedColumn(column_t *col)
{ {
while (sprtopscreen < sprbotscreen) { while (sprtopscreen < sprbotscreen) {
R_DrawMaskedColumn(col); R_DrawMaskedColumn(col);
if ((INT64)sprtopscreen + dc_texheight*spryscale > (INT64)INT32_MAX) // prevent overflow if (sprtopscreen + (INT64)dc_texheight*spryscale > (INT64)INT32_MAX) // prevent overflow
sprtopscreen = INT32_MAX; sprtopscreen = INT32_MAX;
else else
sprtopscreen += dc_texheight*spryscale; sprtopscreen += dc_texheight*spryscale;