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snes: Added basic Horizontal Mosaic effect, looks better but still not yet perfect.

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This commit is contained in:
Angelo Salese 2009-07-19 17:08:46 +00:00
parent 0803a2bec5
commit 22e08803f4
1 changed files with 50 additions and 6 deletions
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44
src/mame/video/snes.c
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@ -289,11 +289,26 @@ INLINE void snes_draw_tile_2(UINT8 screen, UINT8 layer, UINT16 tileaddr, INT16 x
c = snes_cgram[pal + colour]; c = snes_cgram[pal + colour];
if( screen == MAINSCREEN ) /* Only blend main screens */ if( screen == MAINSCREEN ) /* Only blend main screens */
snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 ); snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 );
if( snes_ram[MOSAIC] & (1 << layer) ) // handle horizontal mosaic
{
int x_mos;
//TODO: 512 modes has the h values doubled.
for(x_mos = 0;x_mos < (((snes_ram[MOSAIC] & 0xf0)>>4)+1) ; x_mos++)
{
scanlines[screen].buffer[ii + x_mos] = c;
scanlines[screen].zbuf[ii + x_mos] = priority;
}
ii += x_mos - 1;
}
else
{
scanlines[screen].buffer[ii] = c; scanlines[screen].buffer[ii] = c;
scanlines[screen].zbuf[ii] = priority; scanlines[screen].zbuf[ii] = priority;
} }
} }
} }
}
} }
/***************************************** /*****************************************
@ -367,11 +382,25 @@ INLINE void snes_draw_tile_4(UINT8 screen, UINT8 layer, UINT16 tileaddr, INT16 x
c = snes_cgram[pal + colour]; c = snes_cgram[pal + colour];
if( screen == MAINSCREEN ) /* Only blend main screens */ if( screen == MAINSCREEN ) /* Only blend main screens */
snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 ); snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 );
if( snes_ram[MOSAIC] & (1 << layer) ) // handle horizontal mosaic
{
int x_mos;
//TODO: 512 modes has the h values doubled.
for(x_mos = 0;x_mos < (((snes_ram[MOSAIC] & 0xf0)>>4)+1) ; x_mos++)
{
scanlines[screen].buffer[ii + x_mos] = c;
scanlines[screen].zbuf[ii + x_mos] = priority;
}
ii += x_mos - 1;
}
else
{
scanlines[screen].buffer[ii] = c; scanlines[screen].buffer[ii] = c;
scanlines[screen].zbuf[ii] = priority; scanlines[screen].zbuf[ii] = priority;
} }
} }
} }
}
} }
/***************************************** /*****************************************
@ -453,11 +482,26 @@ INLINE void snes_draw_tile_8(UINT8 screen, UINT8 layer, UINT16 tileaddr, INT16 x
c = snes_cgram[colour]; c = snes_cgram[colour];
if( screen == MAINSCREEN ) /* Only blend main screens */ if( screen == MAINSCREEN ) /* Only blend main screens */
snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 ); snes_draw_blend(ii, &c, snes_ppu.layer[layer].blend, (snes_ram[CGWSEL] & 0x30) >> 4 );
if( snes_ram[MOSAIC] & (1 << layer) ) // handle horizontal mosaic
{
int x_mos;
//TODO: 512 modes has the h values doubled.
for(x_mos = 0;x_mos < (((snes_ram[MOSAIC] & 0xf0)>>4)+1) ; x_mos++)
{
scanlines[screen].buffer[ii + x_mos] = c;
scanlines[screen].zbuf[ii + x_mos] = priority;
}
ii += x_mos - 1;
}
else
{
scanlines[screen].buffer[ii] = c; scanlines[screen].buffer[ii] = c;
scanlines[screen].zbuf[ii] = priority; scanlines[screen].zbuf[ii] = priority;
} }
} }
} }
}
} }
/***************************************** /*****************************************