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XGA: Move a variable initialization to IF blocks, fixes segementation fault when pat_src is 8 (eg. in Windows 95 on the MCA XGA).

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OBattler
2025-02-03 00:46:38 +01:00
parent b148566d00
commit a540012f9a
1 changed files with 5 additions and 1 deletions
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6
src/video/vid_xga.c
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@@ -1504,7 +1504,7 @@ xga_bitblt(svga_t *svga)
uint32_t old_dest_dat;
uint32_t color_cmp = xga->accel.color_cmp;
uint32_t plane_mask = xga->accel.plane_mask;
uint32_t patbase = xga->accel.px_map_base[xga->accel.pat_src];
uint32_t patbase;
uint32_t dstbase = xga->accel.px_map_base[xga->accel.dst_map];
uint32_t srcbase = xga->accel.px_map_base[xga->accel.src_map];
uint32_t patwidth = xga->accel.px_map_width[xga->accel.pat_src];
@@ -1632,6 +1632,8 @@ xga_bitblt(svga_t *svga)
}
}
} else if (xga->accel.pat_src >= 1) {
patbase = xga->accel.px_map_base[xga->accel.pat_src];
if (patheight == 7) {
if (xga->accel.src_map != 1)
xga->accel.pattern = 1;
@@ -1741,6 +1743,8 @@ xga_bitblt(svga_t *svga)
}
}
} else {
patbase = xga->accel.px_map_base[xga->accel.pat_src];
while (xga->accel.y >= 0) {
mix = xga_accel_read_pattern_map_pixel(svga, xga->accel.px, xga->accel.py, patbase, patwidth + 1);