diff options
Diffstat (limited to 'src/mame/video/kopunch.c')
-rw-r--r-- | src/mame/video/kopunch.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/mame/video/kopunch.c b/src/mame/video/kopunch.c new file mode 100644 index 00000000000..1c7f61b57c7 --- /dev/null +++ b/src/mame/video/kopunch.c @@ -0,0 +1,124 @@ +#include "driver.h" + +UINT8 *kopunch_videoram2; + +static INT8 scroll[2]; // REMOVE +static int gfxbank, gfxflip; + +static tilemap *bg_tilemap, *fg_tilemap; + +PALETTE_INIT( kopunch ) +{ + int i; + + color_prom+=24; /* first 24 colors are black */ + for (i = 0;i < machine->drv->total_colors;i++) + { + int bit0,bit1,bit2,r,g,b; + + /* red component */ + bit0 = (*color_prom >> 0) & 0x01; + bit1 = (*color_prom >> 1) & 0x01; + bit2 = (*color_prom >> 2) & 0x01; + r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + /* green component */ + bit0 = (*color_prom >> 3) & 0x01; + bit1 = (*color_prom >> 4) & 0x01; + bit2 = (*color_prom >> 5) & 0x01; + g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + /* blue component */ + bit0 = 0; + bit1 = (*color_prom >> 6) & 0x01; + bit2 = (*color_prom >> 7) & 0x01; + b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + + palette_set_color(machine,i,MAKE_RGB(r,g,b)); + color_prom++; + } +} + +WRITE8_HANDLER( kopunch_videoram_w ) +{ + videoram[offset] = data; + tilemap_mark_tile_dirty(bg_tilemap, offset); +} + +WRITE8_HANDLER( kopunch_videoram2_w ) +{ + kopunch_videoram2[offset] = data; + tilemap_mark_tile_dirty(fg_tilemap, offset); +} + +WRITE8_HANDLER( kopunch_scroll_x_w ) +{ + scroll[0] = data; // REMOVE + tilemap_set_scrollx(fg_tilemap, 0, data); +} + +WRITE8_HANDLER( kopunch_scroll_y_w ) +{ + scroll[1] = data; // REMOVE + tilemap_set_scrolly(fg_tilemap, 0, data); +} + +WRITE8_HANDLER( kopunch_gfxbank_w ) +{ + if (gfxbank != (data & 0x07)) + { + gfxbank = data & 0x07; + tilemap_mark_all_tiles_dirty(fg_tilemap); + } + + gfxflip = data & 0x08; // REMOVE + + tilemap_set_flip(fg_tilemap, (data & 0x08) ? TILEMAP_FLIPY : 0); +} + +static TILE_GET_INFO( get_bg_tile_info ) +{ + int code = videoram[tile_index]; + + SET_TILE_INFO(0, code, 0, 0); +} + +static TILE_GET_INFO( get_fg_tile_info ) +{ + int code = (kopunch_videoram2[tile_index] & 0x7f) + 128 * gfxbank; + + SET_TILE_INFO(1, code, 0, 0); +} + +VIDEO_START( kopunch ) +{ + bg_tilemap = tilemap_create(get_bg_tile_info, tilemap_scan_rows, + TILEMAP_TYPE_PEN, 8, 8, 32, 32); + + fg_tilemap = tilemap_create(get_fg_tile_info, tilemap_scan_rows, + TILEMAP_TYPE_PEN, 8, 8, 16, 16); + + tilemap_set_transparent_pen(fg_tilemap, 0); +} + +VIDEO_UPDATE( kopunch ) +{ + int offs; + + tilemap_draw(bitmap, &machine->screen[0].visarea, bg_tilemap, 0, 0); + //tilemap_draw(bitmap, &machine->screen[0].visarea, fg_tilemap, 0, 0); + + for (offs = 1023;offs >= 0;offs--) + { + int sx,sy; + + sx = offs % 16; + sy = offs / 16; + + drawgfx(bitmap,machine->gfx[1], + (kopunch_videoram2[offs] & 0x7f) + 128 * gfxbank, + 0, + 0,gfxflip, + 8*(sx+8)+scroll[0],8*(8+(gfxflip ? 15-sy : sy))+scroll[1], + &machine->screen[0].visarea,TRANSPARENCY_PEN,0); + } + return 0; +} |