// license:BSD-3-Clause // copyright-holders:Brad Oliver /*************************************************************************** video/zerozone.cpp ***************************************************************************/ #include "emu.h" #include "includes/zerozone.h" void zerozone_state::tilemap_w(offs_t offset, uint16_t data, uint16_t mem_mask) { COMBINE_DATA(&m_vram[offset]); m_zz_tilemap->mark_tile_dirty(offset); } void zerozone_state::tilebank_w(uint8_t data) { // popmessage ("Data %04x",data); m_tilebank = data & 0x07; m_zz_tilemap->mark_all_dirty(); } TILE_GET_INFO_MEMBER(zerozone_state::get_zerozone_tile_info) { int tileno = m_vram[tile_index] & 0x07ff; int colour = m_vram[tile_index] & 0xf000; if (m_vram[tile_index] & 0x0800) tileno += m_tilebank * 0x800; tileinfo.set(0, tileno, colour >> 12, 0); } void zerozone_state::video_start() { // I'm not 100% sure it should be opaque, pink title screen looks strange in Las Vegas Girls // but if it's transparent other things look incorrect m_zz_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(zerozone_state::get_zerozone_tile_info)), TILEMAP_SCAN_COLS, 8, 8, 64, 32); } uint32_t zerozone_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_zz_tilemap->draw(screen, bitmap, cliprect); return 0; }