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S3 ViRGE/GX2: Fix screen overlay staying on Windows XP

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This commit is contained in:
Cacodemon345
2024-02-23 16:25:50 +06:00
committed by GitHub
parent b0e7cbc86f
commit 45dff17d58
1 changed files with 4 additions and 0 deletions
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4
src/video/vid_s3_virge.c
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@@ -920,6 +920,10 @@ s3_virge_recalctimings(svga_t *svga)
if (virge->chip <= S3_VIRGEDX && svga->overlay.ena) {
svga->overlay.ena = (((virge->streams.blend_ctrl >> 24) & 7) == 0b000) || (((virge->streams.blend_ctrl >> 24) & 7) == 0b101);
} else if (virge->chip == S3_VIRGEGX2 && svga->overlay.ena) {
/* 0x20 = Secondary Stream enabled */
/* 0x2000 = Primary Stream enabled */
svga->overlay.ena = !!(virge->streams.blend_ctrl & 0x20) && (svga->crtc[0x67] & 0xC);
}
switch ((virge->streams.pri_ctrl >> 24) & 0x7) {