Merge branch 'fix_softlock' into 'next'

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

See merge request STJr/SRB2!2323

src/r_segs.c

@@ -441,7 +441,7 @@ static void R_DrawRepeatMaskedColumn(column_t *col, unsigned lengthcol)
 {
 	while (sprtopscreen < sprbotscreen) {
 		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;
 		else
 			sprtopscreen += dc_texheight*spryscale;