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Sanitized the horizontal blanking adjustments a bit and fixed 640x480x8bpp on some S3 cards.

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OBattler
2024-01-13 22:04:20 +01:00
parent a55b64a3dd
commit b1c292a9e9
6 changed files with 81 additions and 63 deletions
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9
src/video/vid_s3_virge.c
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@@ -864,8 +864,7 @@ s3_virge_recalctimings(svga_t *svga)
if (virge->chip != S3_VIRGEVX && virge->chip < S3_VIRGEGX2) {
svga->htotal >>= 1;
svga->hdisp >>= 1;
svga->hoverride = 1;
svga->hblankstart = ((svga->hblankstart - 1) >> 1) + 1;
svga->hblankstart >>= 1;
svga->hblank_end_val >>= 1;
}
break;
@@ -874,7 +873,7 @@ s3_virge_recalctimings(svga_t *svga)
if (virge->chip != S3_VIRGEVX && virge->chip < S3_VIRGEGX2) {
svga->htotal >>= 1;
svga->hdisp >>= 1;
svga->hblankstart = ((svga->hblankstart - 1) >> 1) + 1;
svga->hblankstart >>= 1;
svga->hblank_end_val >>= 1;
}
break;
@@ -923,13 +922,13 @@ s3_virge_recalctimings(svga_t *svga)
break;
case 3: /*KRGB-16 (1.5.5.5)*/
svga->htotal >>= 1;
svga->hblankstart = ((svga->hblankstart - 1) >> 1) + 1;
svga->hblankstart >>= 1;
svga->hblank_end_val >>= 1;
svga->render = svga_render_15bpp_highres;
break;
case 5: /*RGB-16 (5.6.5)*/
svga->htotal >>= 1;
svga->hblankstart = ((svga->hblankstart - 1) >> 1) + 1;
svga->hblankstart >>= 1;
svga->hblank_end_val >>= 1;
svga->render = svga_render_16bpp_highres;
break;