diff options
Diffstat (limited to 'src/mame/video/ampoker.c')
-rw-r--r-- | src/mame/video/ampoker.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/mame/video/ampoker.c b/src/mame/video/ampoker.c new file mode 100644 index 00000000000..f0ae3e9bc0c --- /dev/null +++ b/src/mame/video/ampoker.c @@ -0,0 +1,120 @@ +/******************************************************************************** + + + AMERICAN POKER 2 - VIDEO HARDWARE + --------------------------------- + + Company: Novomatic. + Year: 1990. + + Original preliminary driver: Curt Coder. + Rewrite and additional work: Roberto Fresca, with a lot of help of Grull Osgo. + + + --- Supported Sets --- + + Old name | New name | Relation | Description + -------------------------------------------- + ampokr2b ampoker2 parent American Poker II. + ---- ampkr2b1 clone American Poker II (bootleg, set 1). + ampokr2a ampkr2b2 clone American Poker II (bootleg, set 2). + ampoker2 ampkr2b3 clone American Poker II (bootleg, set 3). + ampokr2c pkrdewin clone Poker De Win. + ---- ampkr95 clone American Poker 95. + ---- sigmapkr parent Sigma Poker. + ---- sigma2k parent Sigma Poker 2000. + + +********************************************************************************/ + + +#include "driver.h" + +static tilemap *bg_tilemap; + + +PALETTE_INIT( ampoker2 ) +{ + #define COLOR(gfxn,offs) (colortable[machine->drv->gfxdecodeinfo[gfxn].color_codes_start + offs]) + + int i; + +/* - bits - + 76543210 + RRRGGGBB +*/ + for (i = 0; i < machine->drv->total_colors; i++) + { + int bit0, bit1, bit2, r, g, b; + + /* blue component */ + bit0 = 0; + bit1 = (*color_prom >> 0) & 0x01; + bit2 = (*color_prom >> 1) & 0x01; + b = ( 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2); + + /* green component */ + bit0 = (*color_prom >> 2) & 0x01; + bit1 = (*color_prom >> 3) & 0x01; + bit2 = (*color_prom >> 4) & 0x01; + g = ( 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2); + + /* red component */ + bit0 = (*color_prom >> 5) & 0x01; + bit1 = (*color_prom >> 6) & 0x01; + bit2 = (*color_prom >> 7) & 0x01; + r = ( 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2); + + palette_set_color(machine, i, MAKE_RGB(r, g, b)); + + color_prom++; + } +} + +WRITE8_HANDLER( ampoker2_videoram_w ) +{ + videoram[offset] = data; + tilemap_mark_tile_dirty(bg_tilemap, offset / 2); +} + +static TILE_GET_INFO( get_bg_tile_info ) +{ + int offs = tile_index * 2; + int attr = videoram[offs + 1]; + int code = videoram[offs]; + int color = attr; + code=code+(256*(color & 0x03)); /* code = color.bit1 + color.bit0 + code */ + color= color >> 1; /* color = color - bit0 (bit1..bit7) */ + + SET_TILE_INFO(0, code, color, 0); +} + +static TILE_GET_INFO( s2k_get_bg_tile_info ) +{ + int offs = tile_index * 2; + int attr = videoram[offs + 1]; + int code = videoram[offs]; + int color = attr; + code=code+(256*(color & 0x0f)); /* the game use 2 extra bits */ + color= color >> 1; + + SET_TILE_INFO(0, code, color, 0); +} + +VIDEO_START(ampoker2) +{ + bg_tilemap = tilemap_create(get_bg_tile_info, tilemap_scan_rows, + TILEMAP_TYPE_PEN, 8, 8, 64, 32); +} + +VIDEO_START(sigma2k) +{ + bg_tilemap = tilemap_create(s2k_get_bg_tile_info, tilemap_scan_rows, + TILEMAP_TYPE_PEN, 8, 8, 64, 32); +} + +VIDEO_UPDATE(ampoker2) +{ + tilemap_draw(bitmap, cliprect, bg_tilemap, 0, 0); + return 0; +} |