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Provided color prom to Cow Race [Tomasz Slanina, Angelo Salese]

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This commit is contained in:
Angelo Salese 2009-02-22 01:24:25 +00:00
parent 89c7a72ebe
commit 1d28360128
1 changed files with 42 additions and 13 deletions
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55
src/mame/drivers/cowrace.c
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@ -28,7 +28,9 @@ static WRITE8_HANDLER( cowrace_colorram_w )
static TILE_GET_INFO( get_tile_info ) static TILE_GET_INFO( get_tile_info )
{ {
UINT16 code = videoram[ tile_index ] + (colorram[ tile_index ] << 8) ; UINT16 code = videoram[ tile_index ] + (colorram[ tile_index ] << 8) ;
SET_TILE_INFO(1, code & 0x1ff, 0, TILE_FLIPYX( 0 ));; UINT8 color = 0;//(colorram[ tile_index ] & 0x3e)>>1;
SET_TILE_INFO(1, code & 0x1ff, color, TILE_FLIPYX( 0 ));;
} }
static VIDEO_START( cowrace ) static VIDEO_START( cowrace )
@ -36,12 +38,11 @@ static VIDEO_START( cowrace )
tmap = tilemap_create( machine, get_tile_info, tilemap_scan_rows, tmap = tilemap_create( machine, get_tile_info, tilemap_scan_rows,
8,8, 0x20,0x20 ); 8,8, 0x20,0x20 );
tilemap_set_transparent_pen(tmap, 0); // tilemap_set_transparent_pen(tmap, 0);
} }
static VIDEO_UPDATE( cowrace ) static VIDEO_UPDATE( cowrace )
{ {
bitmap_fill(bitmap,cliprect,0);
tilemap_draw(bitmap,cliprect, tmap, 0, 0); tilemap_draw(bitmap,cliprect, tmap, 0, 0);
return 0; return 0;
} }
@ -124,16 +125,15 @@ static const gfx_layout layout8x8x2 =
8*8 8*8
}; };
/* seems more suitable with 2bpp?*/
static const gfx_layout layout16x16x4 = static const gfx_layout layout16x16x4 =
{ {
16,16, 16,16,
RGN_FRAC(1,4), RGN_FRAC(1,2),
4, 2,
{ {
RGN_FRAC(0,4), RGN_FRAC(0,2),
RGN_FRAC(1,4), RGN_FRAC(1,2),
RGN_FRAC(2,4),
RGN_FRAC(3,4)
}, },
{ 16*8+0,16*8+1,16*8+2,16*8+3,16*8+4,16*8+5,16*8+6,16*8+7,0,1,2,3,4,5,6,7 }, { 16*8+0,16*8+1,16*8+2,16*8+3,16*8+4,16*8+5,16*8+6,16*8+7,0,1,2,3,4,5,6,7 },
{ 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8,8*8,9*8,10*8,11*8,12*8,13*8,14*8,15*8 }, { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8,8*8,9*8,10*8,11*8,12*8,13*8,14*8,15*8 },
@ -141,8 +141,8 @@ static const gfx_layout layout16x16x4 =
}; };
static GFXDECODE_START( cowrace ) static GFXDECODE_START( cowrace )
GFXDECODE_ENTRY( "gfx1", 0x000000, layout16x16x4, 0, 0x1 ) GFXDECODE_ENTRY( "gfx1", 0x000000, layout16x16x4, 0, 0x40 )
GFXDECODE_ENTRY( "gfx2", 0x000000, layout8x8x2, 0, 0x1 ) GFXDECODE_ENTRY( "gfx2", 0x000000, layout8x8x2, 0, 0x40 )
GFXDECODE_END GFXDECODE_END
static INPUT_PORTS_START( cowrace ) static INPUT_PORTS_START( cowrace )
@ -162,6 +162,31 @@ static const ym2203_interface ym2203_interface_1 =
NULL NULL
}; };
/* format might be wrong */
static PALETTE_INIT(cowrace)
{
int bit0, bit1, bit2 , r, g, b;
int i;
for (i = 0; i < 0x200; ++i)
{
bit0 = 0;
bit1 = (color_prom[0] >> 0) & 0x01;
bit2 = (color_prom[0] >> 1) & 0x01;
r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
bit0 = (color_prom[0] >> 2) & 0x01;
bit1 = (color_prom[0] >> 3) & 0x01;
bit2 = (color_prom[0] >> 4) & 0x01;
g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
bit0 = (color_prom[0] >> 5) & 0x01;
bit1 = (color_prom[0] >> 6) & 0x01;
bit2 = (color_prom[0] >> 7) & 0x01;
b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
palette_set_color(machine, i, MAKE_RGB(r, g, b));
color_prom++;
}
}
static MACHINE_DRIVER_START( cowrace ) static MACHINE_DRIVER_START( cowrace )
@ -187,7 +212,8 @@ static MACHINE_DRIVER_START( cowrace )
MDRV_SCREEN_VISIBLE_AREA(0, 256-1, 0, 256-1) MDRV_SCREEN_VISIBLE_AREA(0, 256-1, 0, 256-1)
MDRV_GFXDECODE(cowrace) MDRV_GFXDECODE(cowrace)
MDRV_PALETTE_LENGTH(0x1000) MDRV_PALETTE_LENGTH(0x400)
MDRV_PALETTE_INIT(cowrace)
MDRV_VIDEO_START(cowrace) MDRV_VIDEO_START(cowrace)
MDRV_VIDEO_UPDATE(cowrace) MDRV_VIDEO_UPDATE(cowrace)
@ -223,6 +249,9 @@ ROM_START( cowrace )
ROM_REGION( 0x20000, "oki", 0 ) ROM_REGION( 0x20000, "oki", 0 )
ROM_LOAD( "u4.bin", 0x00000, 0x20000, CRC(f92a3ab5) SHA1(fc164492793597eadb8a50154410936edb74fa23) ) ROM_LOAD( "u4.bin", 0x00000, 0x20000, CRC(f92a3ab5) SHA1(fc164492793597eadb8a50154410936edb74fa23) )
ROM_REGION( 0x20000, "proms", 0 )
ROM_LOAD( "u149.bin", 0x00000, 0x200, CRC(f41a5eca) SHA1(797f2d95d4e00f96e5a99604935810e1add59689) )
ROM_END ROM_END
GAME( 2000, cowrace, kingdrby, cowrace, cowrace, 0, ROT0, "bootleg", "Cow Race (hack of King Derby)", GAME_NOT_WORKING ) GAME( 2000, cowrace, kingdrby, cowrace, cowrace, 0, ROT0, "bootleg", "Cow Race (hack of King Derby)", GAME_NOT_WORKING | GAME_WRONG_COLORS )