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Merge pull request #3026 from Cacodemon345/patch-122

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vid_mga: Fix Matrox Mystique MGA modes
This commit is contained in:
Miran Grča
2023-01-15 12:18:01 +01:00
committed by GitHub
parent 72118bb259 104d21f806
commit 0fe4cfc086
1 changed files with 4 additions and 2 deletions
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6
src/video/vid_mga.c
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@@ -848,7 +848,7 @@ mystique_recalctimings(svga_t *svga)
mystique_t *mystique = (mystique_t *) svga->p;
int clk_sel = (svga->miscout >> 2) & 3;
svga->clock = (cpuclock * (float) (1ull << 32)) / svga->getclock(clk_sel & 2, svga->clock_gen);
svga->clock = (cpuclock * (float) (1ull << 32)) / svga->getclock(clk_sel & 3, svga->clock_gen);
if (mystique->crtcext_regs[1] & CRTCX_R1_HTOTAL8)
svga->htotal += 0x100;
@@ -896,7 +896,9 @@ mystique_recalctimings(svga_t *svga)
svga->ma = svga->maback = (svga->maback - (mystique->ma_latch_old << 2)) + (svga->ma_latch << 2);
mystique->ma_latch_old = svga->ma_latch;
}
svga->rowoffset <<= 1;
switch (mystique->xmulctrl & XMULCTRL_DEPTH_MASK) {
case XMULCTRL_DEPTH_8:
case XMULCTRL_DEPTH_2G8V16: