80486DX2-66/86Box-fork
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Fixed said implementation.

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This commit is contained in:
OBattler
2021-09-14 02:14:42 +02:00
parent 411a64553d
commit b8bc115c7f
1 changed files with 23 additions and 10 deletions
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33
src/video/vid_s3.c
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@@ -1876,6 +1876,25 @@ s3_queue(s3_t *s3, uint32_t addr, uint32_t val, uint32_t type)
wake_fifo_thread(s3);
}
static uint32_t
s3_hwcursor_convert_addr(svga_t *svga)
{
uint32_t real_addr;
if ((svga->bpp == 8) && ((svga->gdcreg[5] & 0x60) >= 0x20) && (svga->crtc[0x45] & 0x10)) {
real_addr = (svga->hwcursor_latch.addr & 0xfffff000);
if ((svga->gdcreg[5] & 0x60) >= 0x40)
return (real_addr | ((svga->hwcursor_latch.addr & 0x200) << 2)) + 0x200;
else if ((svga->gdcreg[5] & 0x60) == 0x20)
return (real_addr | ((svga->hwcursor_latch.addr & 0x300) << 2)) + 0x100;
else
return svga->hwcursor_latch.addr;
} else
return svga->hwcursor_latch.addr;
}
static void
s3_hwcursor_draw(svga_t *svga, int displine)
{
@@ -1888,14 +1907,7 @@ s3_hwcursor_draw(svga_t *svga, int displine)
uint32_t fg, bg;
uint32_t real_addr;
if ((svga->bpp == 8) && ((svga->gdcreg[5] & 0x60) >= 0x20) && (svga->crtc[0x45] & 0x10)) {
real_addr = (svga->hwcursor_latch.addr & 0xfffff000);
if ((svga->gdcreg[5] & 0x60) >= 0x40)
real_addr = (real_addr | ((svga->hwcursor_latch.addr & 0x200) << 2)) + 0x200;
else if ((svga->gdcreg[5] & 0x60) == 0x20)
real_addr = (real_addr | ((svga->hwcursor_latch.addr & 0x300) << 2)) + 0x100;
} else
real_addr = svga->hwcursor_latch.addr;
real_addr = s3_hwcursor_convert_addr(svga);
switch (svga->bpp)
{
@@ -1950,8 +1962,8 @@ s3_hwcursor_draw(svga_t *svga, int displine)
for (x = 0; x < 64; x += 16)
{
dat[0] = (svga->vram[svga->hwcursor_latch.addr & svga->vram_display_mask] << 8) | svga->vram[(svga->hwcursor_latch.addr + 1) & svga->vram_display_mask];
dat[1] = (svga->vram[(svga->hwcursor_latch.addr + 2) & svga->vram_display_mask] << 8) | svga->vram[(svga->hwcursor_latch.addr + 3) & svga->vram_display_mask];
dat[0] = (svga->vram[real_addr & svga->vram_display_mask] << 8) | svga->vram[(real_addr + 1) & svga->vram_display_mask];
dat[1] = (svga->vram[(real_addr + 2) & svga->vram_display_mask] << 8) | svga->vram[(real_addr + 3) & svga->vram_display_mask];
if (svga->crtc[0x55] & 0x10) {
/*X11*/
for (xx = 0; xx < 16; xx++) {
@@ -1980,6 +1992,7 @@ s3_hwcursor_draw(svga_t *svga, int displine)
}
}
svga->hwcursor_latch.addr += 4;
real_addr = s3_hwcursor_convert_addr(svga);
}
if (svga->interlace && !svga->hwcursor_oddeven)
svga->hwcursor_latch.addr += 16;