// license:BSD-3-Clause // copyright-holders:Luca Elia /*************************************************************************** -= Run Deep / The Deep =- driver by Luca Elia (l.elia@tin.it) [ 1 Horizontally Scrolling Layer ] Size : 512 x 512 Tiles: 16 x 16 x 4. In addition to a global x & y scroll register each tile-wide column has its own y scroll register. [ 1 Fixed Layer ] Size : 256 x 256 Tiles: 8 x 8 x 2. [ 128? sprites ] Sprites tiles are 16 x 16 x 4. Each sprite has a height and width specified (1,2,4, or 8 tiles). A sprite of width N uses N consecutive sprites: the first one specifies all the data (position,flip), the following ones only the tile code and color for that column (tile codes in each column are consecutive). ***************************************************************************/ #include "emu.h" #include "includes/thedeep.h" /*************************************************************************** Callbacks for the TileMap code ***************************************************************************/ TILE_GET_INFO_MEMBER(thedeep_state::get_tile_info) { uint8_t code = m_textram[ tile_index * 2 + 0 ]; uint8_t color = m_textram[ tile_index * 2 + 1 ]; SET_TILE_INFO_MEMBER(2, code + (color << 8), (color & 0xf0) >> 4, 0); } WRITE8_MEMBER(thedeep_state::textram_w) { m_textram[offset] = data; m_text_tilemap->mark_tile_dirty(offset / 2); } /*************************************************************************** Palette Init ***************************************************************************/ void thedeep_state::thedeep_palette(palette_device &palette) const { uint8_t const *const color_prom = memregion("proms")->base(); for (int i = 0; i < 512; i++) palette.set_pen_color(i, pal4bit(color_prom[0x400 + i] >> 0), pal4bit(color_prom[0x400 + i] >> 4), pal4bit(color_prom[0x200 + i] >> 0)); } /*************************************************************************** Video Init ***************************************************************************/ void thedeep_state::video_start() { m_text_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(thedeep_state::get_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 0x20, 0x20); m_text_tilemap->set_transparent_pen(0); } /*************************************************************************** Screen Drawing ***************************************************************************/ uint32_t thedeep_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { bitmap.fill(m_palette->black_pen(), cliprect); m_tilegen->deco_bac06_pf_draw(screen, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0x00, 0x00, 0x00, 0x00, 0); m_spritegen->draw_sprites(screen, bitmap, cliprect, m_gfxdecode->gfx(0), reinterpret_cast(m_spriteram.target()), 0x400/2); m_text_tilemap->draw(screen, bitmap, cliprect, 0,0); return 0; }