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dc_texheight must be (INT64) to prevent overflow and rendering softlock

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Arthur 2024-02-16 12:48:28 -05:00
parent 2747e30f8c
commit 532abf9279
1 changed files with 1 additions and 1 deletions
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src/r_segs.c
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@ -441,7 +441,7 @@ static void R_DrawRepeatMaskedColumn(column_t *col, unsigned lengthcol)
{ {
while (sprtopscreen < sprbotscreen) { while (sprtopscreen < sprbotscreen) {
R_DrawMaskedColumn(col, lengthcol); R_DrawMaskedColumn(col, lengthcol);
if ((INT64)sprtopscreen + dc_texheight*spryscale > (INT64)INT32_MAX) // prevent overflow if ((INT64)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;