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Fixed pattern offsets in CL-GD5429 blitter.

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This commit is contained in:
SarahW 2018-02-16 22:21:01 +00:00
commit 2f5bbb3b66
1 changed files with 13 additions and 21 deletions
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34
src/vid_cl5429.c
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@ -792,9 +792,7 @@ void gd5429_start_blit(uint32_t cpu_dat, int count, void *p)
gd5429->blt.src_addr_backup = gd5429->blt.src_addr;
gd5429->blt.width_backup = gd5429->blt.width;
gd5429->blt.height_internal = gd5429->blt.height;
gd5429->blt.x_count = gd5429->blt.mask & 7;
if (gd5429->blt.mode & 0x10)
gd5429->blt.x_count *= 2;
gd5429->blt.x_count = 0;
// pclog("gd5429_start_blit : size %i, %i %i\n", gd5429->blt.width, gd5429->blt.height, gd5429->blt.x_count);
if (gd5429->blt.mode & 0x04)
@ -862,30 +860,17 @@ void gd5429_start_blit(uint32_t cpu_dat, int count, void *p)
src = mask ? (gd5429->blt.fg_col >> 8) : (gd5429->blt.bg_col >> 8);
else
src = mask ? gd5429->blt.fg_col : gd5429->blt.bg_col;
// pclog(" src=%02x mask=%i fg_col=%04x bg_col=%04x %i %08x\n", src, mask, gd5429->blt.fg_col, gd5429->blt.bg_col, gd5429->blt.x_count, gd5429->blt.src_addr);
gd5429->blt.x_count++;
if (gd5429->blt.x_count == 16)
{
gd5429->blt.x_count = 0;
gd5429->blt.src_addr++;
}
}
else
{
mask = svga->vram[gd5429->blt.src_addr & svga->vram_mask] & (0x80 >> gd5429->blt.x_count);
src = mask ? gd5429->blt.fg_col : gd5429->blt.bg_col;
gd5429->blt.x_count++;
if (gd5429->blt.x_count == 8)
{
gd5429->blt.x_count = 0;
gd5429->blt.src_addr++;
}
}
break;
case 0xc0:
if (gd5429->blt.mode & 0x10)
{
mask = svga->vram[gd5429->blt.src_addr & svga->vram_mask] & (0x80 >> ((gd5429->blt.dst_addr >> 1) & 7));
mask = svga->vram[gd5429->blt.src_addr & svga->vram_mask] & (0x80 >> (gd5429->blt.x_count >> 1));
if (gd5429->blt.dst_addr & 1)
src = mask ? (gd5429->blt.fg_col >> 8) : (gd5429->blt.bg_col >> 8);
else
@ -893,7 +878,7 @@ void gd5429_start_blit(uint32_t cpu_dat, int count, void *p)
}
else
{
mask = svga->vram[gd5429->blt.src_addr & svga->vram_mask] & (0x80 >> (gd5429->blt.dst_addr & 7));
mask = svga->vram[gd5429->blt.src_addr & svga->vram_mask] & (0x80 >> gd5429->blt.x_count);
src = mask ? gd5429->blt.fg_col : gd5429->blt.bg_col;
}
break;
@ -930,6 +915,14 @@ void gd5429_start_blit(uint32_t cpu_dat, int count, void *p)
svga->vram[gd5429->blt.dst_addr & svga->vram_mask] = dst;
gd5429->blt.dst_addr += ((gd5429->blt.mode & 0x01) ? -1 : 1);
gd5429->blt.x_count++;
if (gd5429->blt.x_count == ((gd5429->blt.mode & 0x10) ? 16 : 8))
{
gd5429->blt.x_count = 0;
if ((gd5429->blt.mode & 0xc0) == 0x80)
gd5429->blt.src_addr++;
}
gd5429->blt.width--;
@ -952,15 +945,14 @@ void gd5429_start_blit(uint32_t cpu_dat, int count, void *p)
break;
case 0x80:
if (gd5429->blt.x_count != 0)
{
gd5429->blt.x_count = 0;
gd5429->blt.src_addr++;
}
break;
case 0xc0:
gd5429->blt.src_addr = ((gd5429->blt.src_addr + ((gd5429->blt.mode & 0x01) ? -1 : 1)) & 7) | (gd5429->blt.src_addr & ~7);
break;
}
gd5429->blt.x_count = 0;
gd5429->blt.height_internal--;
if (gd5429->blt.height_internal == 0xffff)