// license:BSD-3-Clause // copyright-holders:Bryan McPhail /*************************************************************************** video.c Functions to emulate the video hardware of the machine. ***************************************************************************/ #include "emu.h" #include "includes/lastduel.h" /*************************************************************************** Callbacks for the TileMap code ***************************************************************************/ TILE_GET_INFO_MEMBER(lastduel_state::ld_get_bg_tile_info) { int const tile = m_vram[1][2 * tile_index] & 0x1fff; int const color = m_vram[1][2 * tile_index + 1]; tileinfo.set(2, tile,color & 0xf, TILE_FLIPYX((color & 0x60) >> 5)); } TILE_GET_INFO_MEMBER(lastduel_state::ld_get_fg_tile_info) { int const tile = m_vram[0][2 * tile_index] & 0x1fff; int const color = m_vram[0][2 * tile_index + 1]; tileinfo.set(3, tile, color & 0xf, TILE_FLIPYX((color & 0x60) >> 5)); tileinfo.group = (color & 0x80) >> 7; } TILE_GET_INFO_MEMBER(lastduel_state::get_bg_tile_info) { int const tile = m_vram[1][tile_index] & 0x1fff; int const color = m_vram[1][tile_index + 0x0800]; tileinfo.set(2, tile, color & 0xf, TILE_FLIPYX((color & 0x60) >> 5)); } TILE_GET_INFO_MEMBER(lastduel_state::get_fg_tile_info) { int const tile = m_vram[0][tile_index] & 0x1fff; int const color = m_vram[0][tile_index + 0x0800]; tileinfo.set(3, tile, color & 0xf, TILE_FLIPYX((color & 0x60) >> 5)); tileinfo.group = (color & 0x10) >> 4; } TILE_GET_INFO_MEMBER(lastduel_state::get_fix_info) { int const tile = m_txram[tile_index]; tileinfo.set(1, tile & 0x7ff, tile>>12, (tile & 0x800) ? TILE_FLIPY : 0); } /*************************************************************************** Start the video hardware emulation. ***************************************************************************/ VIDEO_START_MEMBER(lastduel_state,lastduel) { m_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::ld_get_bg_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 64, 64); m_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::ld_get_fg_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 64, 64); m_tx_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::get_fix_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 32); m_tilemap[0]->set_transmask(0, 0xffff, 0x0001); m_tilemap[0]->set_transmask(1, 0xf07f, 0x0f81); m_tx_tilemap->set_transparent_pen(3); m_sprite_flipy_mask = 0x40; m_sprite_pri_mask = 0x00; m_tilemap_priority = 0; } VIDEO_START_MEMBER(lastduel_state,madgear) { m_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::get_bg_tile_info)), TILEMAP_SCAN_COLS, 16, 16, 64, 32); m_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::get_fg_tile_info)), TILEMAP_SCAN_COLS, 16, 16, 64, 32); m_tx_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(lastduel_state::get_fix_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 32); m_tilemap[0]->set_transmask(0, 0xffff, 0x8000); m_tilemap[0]->set_transmask(1, 0x80ff, 0xff00); m_tx_tilemap->set_transparent_pen(3); m_tilemap[1]->set_transparent_pen(15); m_sprite_flipy_mask = 0x80; m_sprite_pri_mask = 0x10; } /*************************************************************************** Memory handlers ***************************************************************************/ void lastduel_state::flip_w(uint8_t data) { flip_screen_set(data & 0x01); machine().bookkeeping().coin_lockout_w(0, ~data & 0x10); machine().bookkeeping().coin_lockout_w(1, ~data & 0x20); machine().bookkeeping().coin_counter_w(0, data & 0x40); machine().bookkeeping().coin_counter_w(1, data & 0x80); } void lastduel_state::vctrl_w(offs_t offset, uint16_t data, uint16_t mem_mask) { data = COMBINE_DATA(&m_vctrl[offset]); switch (offset) { case 0: m_tilemap[0]->set_scrolly(0, data); break; case 1: m_tilemap[0]->set_scrollx(0, data); break; case 2: m_tilemap[1]->set_scrolly(0, data); break; case 3: m_tilemap[1]->set_scrollx(0, data); break; case 7: m_tilemap_priority = data; break; default: logerror("Unmapped video write %d %04x\n", offset, data); break; } } void lastduel_state::txram_w(offs_t offset, uint16_t data, uint16_t mem_mask) { COMBINE_DATA(&m_txram[offset]); m_tx_tilemap->mark_tile_dirty(offset); } rgb_t lastduel_state::lastduel_RRRRGGGGBBBBIIII(uint32_t raw) { // Brightness parameter interpreted same way as CPS1 int const bright = 0x10 + (raw & 0x0f); int const red = ((raw >> 12) & 0x0f) * bright * 0x11 / 0x1f; int const green = ((raw >> 8) & 0x0f) * bright * 0x11 / 0x1f; int const blue = ((raw >> 4) & 0x0f) * bright * 0x11 / 0x1f; return rgb_t(red, green, blue); } /*************************************************************************** Display refresh ***************************************************************************/ void lastduel_state::draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect, int pri ) { const uint16_t *buffered_spriteram16 = m_spriteram->buffer(); int offs; if (!m_sprite_pri_mask) if (pri == 1) return; /* only low priority sprites in lastduel */ for (offs = 0x400 - 4; offs >= 0; offs -= 4) { int attr, sy, sx, flipx, flipy, code, color; attr = buffered_spriteram16[offs + 1]; if (m_sprite_pri_mask) /* only madgear seems to have this */ { if (pri == 1 && (attr & m_sprite_pri_mask)) continue; if (pri == 0 && !(attr & m_sprite_pri_mask)) continue; } code = buffered_spriteram16[offs]; sx = buffered_spriteram16[offs + 3] & 0x1ff; sy = buffered_spriteram16[offs + 2] & 0x1ff; if (sy > 0x100) sy -= 0x200; flipx = attr & 0x20; flipy = attr & m_sprite_flipy_mask; /* 0x40 for lastduel, 0x80 for madgear */ color = attr & 0x0f; if (flip_screen()) { sx = 496 - sx; sy = 240 - sy; flipx = !flipx; flipy = !flipy; } m_gfxdecode->gfx(0)->transpen(bitmap,cliprect, code, color, flipx,flipy, sx,sy,15); } } uint32_t lastduel_state::screen_update_lastduel(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_tilemap[1]->draw(screen, bitmap, cliprect, 0, 0); m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER1, 0); draw_sprites(bitmap, cliprect, 0); m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 0); draw_sprites(bitmap, cliprect, 1); m_tx_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; } uint32_t lastduel_state::screen_update_madgear(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { if (m_tilemap_priority) { m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER1 | TILEMAP_DRAW_OPAQUE, 0); draw_sprites(bitmap, cliprect, 0); m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 0); m_tilemap[1]->draw(screen, bitmap, cliprect, 0, 0); draw_sprites(bitmap, cliprect, 1); } else { m_tilemap[1]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0); m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER1, 0); draw_sprites(bitmap, cliprect, 0); m_tilemap[0]->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 0); draw_sprites(bitmap, cliprect, 1); } m_tx_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; }