/* video/pass.c - see drivers/pass.c for more info */ #include "emu.h" #include "includes/pass.h" /* background tilemap stuff */ static TILE_GET_INFO( get_pass_bg_tile_info ) { pass_state *state = machine.driver_data(); int tileno, fx; tileno = state->m_bg_videoram[tile_index] & 0x1fff; fx = (state->m_bg_videoram[tile_index] & 0xc000) >> 14; SET_TILE_INFO(1, tileno, 0, TILE_FLIPYX(fx)); } WRITE16_HANDLER( pass_bg_videoram_w ) { pass_state *state = space->machine().driver_data(); state->m_bg_videoram[offset] = data; tilemap_mark_tile_dirty(state->m_bg_tilemap, offset); } /* foreground 'sprites' tilemap stuff */ static TILE_GET_INFO( get_pass_fg_tile_info ) { pass_state *state = machine.driver_data(); int tileno, flip; tileno = state->m_fg_videoram[tile_index] & 0x3fff; flip = (state->m_fg_videoram[tile_index] & 0xc000) >>14; SET_TILE_INFO(0, tileno, 0, TILE_FLIPYX(flip)); } WRITE16_HANDLER( pass_fg_videoram_w ) { pass_state *state = space->machine().driver_data(); state->m_fg_videoram[offset] = data; tilemap_mark_tile_dirty(state->m_fg_tilemap, offset); } /* video update / start */ VIDEO_START( pass ) { pass_state *state = machine.driver_data(); state->m_bg_tilemap = tilemap_create(machine, get_pass_bg_tile_info, tilemap_scan_rows, 8, 8, 64, 32); state->m_fg_tilemap = tilemap_create(machine, get_pass_fg_tile_info, tilemap_scan_rows, 4, 4, 128, 64); tilemap_set_transparent_pen(state->m_fg_tilemap, 255); } SCREEN_UPDATE( pass ) { pass_state *state = screen->machine().driver_data(); tilemap_draw(bitmap,cliprect,state->m_bg_tilemap, 0, 0); tilemap_draw(bitmap,cliprect,state->m_fg_tilemap, 0, 0); return 0; }