/* Space Bugger - Video Hardware */ #include "driver.h" extern UINT8* sbugger_videoram, *sbugger_videoram_attr; static tilemap *sbugger_tilemap; static TILE_GET_INFO( get_sbugger_tile_info ) { int tileno, color; tileno = sbugger_videoram[tile_index]; color = sbugger_videoram_attr[tile_index]; SET_TILE_INFO(0,tileno,color,0); } WRITE8_HANDLER( sbugger_videoram_w ) { sbugger_videoram[offset] = data; tilemap_mark_tile_dirty(sbugger_tilemap,offset); } WRITE8_HANDLER( sbugger_videoram_attr_w ) { sbugger_videoram_attr[offset] = data; tilemap_mark_tile_dirty(sbugger_tilemap,offset); } VIDEO_START(sbugger) { sbugger_tilemap = tilemap_create(get_sbugger_tile_info,tilemap_scan_rows,TILEMAP_TYPE_PEN, 8, 16,64,16); } VIDEO_UPDATE(sbugger) { tilemap_draw(bitmap,cliprect,sbugger_tilemap,0,0); return 0; } /* not right but so we can see things ok */ PALETTE_INIT(sbugger) { /* just some random colours for now */ int i; for (i = 0;i < 256;i++) { int r = mame_rand(machine)|0x80; int g = mame_rand(machine)|0x80; int b = mame_rand(machine)|0x80; if (i == 0) r = g = b = 0; palette_set_color(machine,i*2+1,MAKE_RGB(r,g,b)); palette_set_color(machine,i*2,MAKE_RGB(0,0,0)); } }