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And reverted it again.

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OBattler
2023-12-22 23:12:25 +01:00
parent f1f6ac2752
commit ede2ce9102
1 changed files with 12 additions and 0 deletions
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12
src/video/vid_mga.c
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@@ -886,6 +886,7 @@ mystique_recalctimings(svga_t *svga)
if (mystique->type >= MGA_1064SG) {
/*Mystique, unlike most SVGA cards, allows display start to take
effect mid-screen*/
#ifdef CHANGE_MA
if (svga->ma_latch != mystique->ma_latch_old) {
if (svga->interlace && svga->oddeven)
svga->ma = svga->maback = (svga->maback - (mystique->ma_latch_old << 2)) + (svga->ma_latch << 2) + (svga->rowoffset << 1);
@@ -893,6 +894,17 @@ 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;
}
#else
/* Only change maback so the new display start will take effect on the next
horizontal retrace. */
if (svga->ma_latch != mystique->ma_latch_old) {
if (svga->interlace && svga->oddeven)
svga->maback = (svga->maback - (mystique->ma_latch_old << 2)) + (svga->ma_latch << 2) + (svga->rowoffset << 1);
else
svga->maback = (svga->maback - (mystique->ma_latch_old << 2)) + (svga->ma_latch << 2);
mystique->ma_latch_old = svga->ma_latch;
}
#endif
svga->rowoffset <<= 1;
switch (mystique->xmulctrl & XMULCTRL_DEPTH_MASK) {