// license:BSD-3-Clause // copyright-holders:David Haywood /* Aquarium */ #include "emu.h" #include "includes/aquarium.h" /* TXT Layer */ TILE_GET_INFO_MEMBER(aquarium_state::get_txt_tile_info) { const u32 tileno = (m_txt_videoram[tile_index] & 0x0fff); const u32 colour = (m_txt_videoram[tile_index] & 0xf000) >> 12; SET_TILE_INFO_MEMBER(0, tileno, colour, 0); tileinfo.category = (m_txt_videoram[tile_index] & 0x8000) >> 15; } void aquarium_state::txt_videoram_w(offs_t offset, u16 data, u16 mem_mask) { COMBINE_DATA(&m_txt_videoram[offset]); m_txt_tilemap->mark_tile_dirty(offset); } /* MID Layer */ TILE_GET_INFO_MEMBER(aquarium_state::get_mid_tile_info) { const u32 tileno = (m_mid_videoram[tile_index * 2] & 0x0fff); const u32 colour = (m_mid_videoram[tile_index * 2 + 1] & 0x001f); const int flag = TILE_FLIPYX((m_mid_videoram[tile_index * 2 + 1] & 0x300) >> 8); SET_TILE_INFO_MEMBER(1, tileno, colour, flag); tileinfo.category = (m_mid_videoram[tile_index * 2 + 1] & 0x20) >> 5; } void aquarium_state::mid_videoram_w(offs_t offset, u16 data, u16 mem_mask) { COMBINE_DATA(&m_mid_videoram[offset]); m_mid_tilemap->mark_tile_dirty(offset / 2); } /* BAK Layer */ TILE_GET_INFO_MEMBER(aquarium_state::get_bak_tile_info) { const u32 tileno = (m_bak_videoram[tile_index * 2] & 0x0fff); const u32 colour = (m_bak_videoram[tile_index * 2 + 1] & 0x001f); const int flag = TILE_FLIPYX((m_bak_videoram[tile_index * 2 + 1] & 0x300) >> 8); SET_TILE_INFO_MEMBER(2, tileno, colour, flag); tileinfo.category = (m_bak_videoram[tile_index * 2 + 1] & 0x20) >> 5; } void aquarium_state::bak_videoram_w(offs_t offset, u16 data, u16 mem_mask) { COMBINE_DATA(&m_bak_videoram[offset]); m_bak_tilemap->mark_tile_dirty(offset / 2); } void aquarium_state::video_start() { m_txt_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(aquarium_state::get_txt_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 64); m_mid_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(aquarium_state::get_mid_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 32, 32); m_bak_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(aquarium_state::get_bak_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 32, 32); m_txt_tilemap->set_transparent_pen(0); m_mid_tilemap->set_transparent_pen(0); m_bak_tilemap->set_transparent_pen(0); } void aquarium_state::aquarium_colpri_cb(u32 &colour, u32 &pri_mask) { pri_mask = 0; if (colour & 8) pri_mask |= (GFX_PMASK_2 | GFX_PMASK_4 | GFX_PMASK_8); } uint32_t aquarium_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_mid_tilemap->set_scrollx(0, m_scroll[0]); m_mid_tilemap->set_scrolly(0, m_scroll[1]); m_bak_tilemap->set_scrollx(0, m_scroll[2]); m_bak_tilemap->set_scrolly(0, m_scroll[3]); m_txt_tilemap->set_scrollx(0, m_scroll[4]); m_txt_tilemap->set_scrolly(0, m_scroll[5]); screen.priority().fill(0, cliprect); bitmap.fill(0, cliprect); // WDUD logo suggests this m_bak_tilemap->draw(screen, bitmap, cliprect, 0, 1); m_mid_tilemap->draw(screen, bitmap, cliprect, 0, 2); m_txt_tilemap->draw(screen, bitmap, cliprect, 1, 4); m_bak_tilemap->draw(screen, bitmap, cliprect, 1, 8); m_sprgen->aquarium_draw_sprites(screen, bitmap, cliprect, 16); m_mid_tilemap->draw(screen, bitmap, cliprect, 1, 0); m_txt_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; }