// license:BSD-3-Clause // copyright-holders:Bryan McPhail /******************************************************************************* Todo: There are some kind of resistors hooked up to the background colours, the same prom colours can change for the background but not the foreground. It's rarely used (Liberation title screen only?). Emulation by Bryan McPhail, mish@tendril.co.uk *******************************************************************************/ #include "emu.h" #include "cpu/m6502/deco16.h" #include "cpu/m6502/m6502.h" #include "includes/liberate.h" #if 0 void liberate_state::debug_print(bitmap_ind16 &bitmap) { int i, j; char buf[20 * 16]; char *bufptr = buf; for (i = 0; i < 16; i += 2) bufptr += sprintf(bufptr, "%04X", deco16_io_ram[i + 1] | (deco16_io_ram[i] << 8)); ui_draw_text(buf, 10, 6 * 6); } #endif TILEMAP_MAPPER_MEMBER(liberate_state::back_scan) { /* logical (col,row) -> memory offset */ return ((row & 0xf)) + ((15 - (col & 0xf)) << 4) + ((row & 0x10) << 5) + ((col & 0x10) << 4); } TILEMAP_MAPPER_MEMBER(liberate_state::fix_scan) { /* logical (col,row) -> memory offset */ return (row & 0x1f) + ((31 - (col & 0x1f)) << 5); } TILE_GET_INFO_MEMBER(liberate_state::get_back_tile_info) { const uint8_t *RAM = memregion("user1")->base(); int tile, bank; /* Convert tile index of 512x512 to paged format */ if (tile_index & 0x100) { if (tile_index & 0x200) tile_index = (tile_index & 0xff) + (m_io_ram[5] << 8); /* Bottom right */ else tile_index = (tile_index & 0xff) + (m_io_ram[4] << 8); /* Bottom left */ } else { if (tile_index & 0x200) tile_index = (tile_index & 0xff) + (m_io_ram[3] << 8); /* Top right */ else tile_index = (tile_index & 0xff) + (m_io_ram[2] << 8); /* Top left */ } tile = RAM[tile_index]; if (tile > 0x7f) bank = 3; else bank = 2; SET_TILE_INFO_MEMBER(bank, tile & 0x7f, m_background_color, 0); } TILE_GET_INFO_MEMBER(liberate_state::get_fix_tile_info) { uint8_t *videoram = m_videoram; uint8_t *colorram = m_colorram; int tile, color; tile = videoram[tile_index] + (colorram[tile_index] << 8); color = (colorram[tile_index] & 0x70) >> 4; SET_TILE_INFO_MEMBER(0, tile, color, 0); } TILE_GET_INFO_MEMBER(liberate_state::prosport_get_back_tile_info) { int tile; /* robiza notes: - flip y (handled with a +0x10 tile banking) depends only by position of the tile in the screen - bits 0-3 are not used by gfx hardware; the value is the color of the pixel in the map (golf) */ tile = (m_bg_vram[tile_index] & 0xf0)>>4; if (tile_index & 0x8) tile += 0x10; tile += m_io_ram[0]&0x20; //Pro Bowling bg tiles banking bit SET_TILE_INFO_MEMBER(8, tile, 0, 0); } /***************************************************************************/ WRITE8_MEMBER(liberate_state::deco16_io_w) { m_io_ram[offset] = data; if (offset > 1 && offset < 6) m_back_tilemap->mark_all_dirty(); switch (offset) { case 6: /* Background colour */ if (((data >> 4) & 3) != m_background_color) { m_background_color = (data >> 4) & 3; m_back_tilemap->mark_all_dirty(); } m_background_disable = data & 0x4; flip_screen_set(data & 0x01); break; case 7: /* Background palette resistors? */ /* Todo */ break; case 8: /* Irq ack */ m_maincpu->set_input_line(DECO16_IRQ_LINE, CLEAR_LINE); break; case 9: /* Sound */ m_soundlatch->write(space, 0, data); m_audiocpu->set_input_line(M6502_IRQ_LINE, HOLD_LINE); break; } } WRITE8_MEMBER(liberate_state::prosoccr_io_w) { m_io_ram[offset] = data; if (offset > 1 && offset < 6) m_back_tilemap->mark_all_dirty(); // popmessage("%02x %02x",m_io_ram[6],m_io_ram[7]); switch (offset) { case 6: /* unused here */ break; case 7: m_background_disable = ~data & 0x10; //sprite_priority = (data & 0x80)>>7; /* -x-- --xx used during gameplay */ /* x--- ---- used on the attract mode */ break; case 8: /* Irq ack */ m_maincpu->set_input_line(DECO16_IRQ_LINE, CLEAR_LINE); break; case 9: /* Sound */ m_soundlatch->write(space, 0, data); m_audiocpu->set_input_line(M6502_IRQ_LINE, HOLD_LINE); break; } } /* completely different i/o...*/ WRITE8_MEMBER(liberate_state::prosport_io_w) { m_io_ram[offset] = data; switch (offset) { case 0: //background_disable = ~data & 0x80; flip_screen_set(data & 0x80); m_back_tilemap->mark_all_dirty(); break; case 2: /* Sound */ m_soundlatch->write(space, 0, data); m_audiocpu->set_input_line(M6502_IRQ_LINE, HOLD_LINE); break; case 4: /* Irq ack */ m_maincpu->set_input_line(DECO16_IRQ_LINE, CLEAR_LINE); break; } } WRITE8_MEMBER(liberate_state::liberate_videoram_w) { m_videoram[offset] = data; m_fix_tilemap->mark_tile_dirty(offset); } WRITE8_MEMBER(liberate_state::liberate_colorram_w) { m_colorram[offset] = data; m_fix_tilemap->mark_tile_dirty(offset); } WRITE8_MEMBER(liberate_state::prosport_bg_vram_w) { m_bg_vram[offset] = data; m_back_tilemap->mark_tile_dirty(offset); } /***************************************************************************/ VIDEO_START_MEMBER(liberate_state,prosoccr) { m_back_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_back_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::back_scan),this), 16, 16, 32, 32); m_fix_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_fix_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::fix_scan),this), 8, 8, 32, 32); m_fix_tilemap->set_transparent_pen(0); m_fg_gfx = memregion("fg_gfx")->base(); m_charram = std::make_unique(0x1800 * 2); save_pointer(NAME(m_charram.get()), 0x1800 * 2); save_pointer(NAME(m_fg_gfx), 0x6000); } VIDEO_START_MEMBER(liberate_state,boomrang) { m_back_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_back_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::back_scan),this), 16, 16, 32, 32); m_fix_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_fix_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::fix_scan),this), 8, 8, 32, 32); m_back_tilemap->set_transmask(0, 0x0001, 0x007e); /* Bottom 1 pen/Top 7 pens */ m_fix_tilemap->set_transparent_pen(0); } VIDEO_START_MEMBER(liberate_state,liberate) { m_back_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_back_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::back_scan),this), 16, 16, 32, 32); m_fix_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_fix_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::fix_scan),this), 8, 8, 32, 32); m_fix_tilemap->set_transparent_pen(0); } VIDEO_START_MEMBER(liberate_state,prosport) { m_back_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::prosport_get_back_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::back_scan),this), 16, 16, 32, 32); m_fix_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(liberate_state::get_fix_tile_info),this), tilemap_mapper_delegate(FUNC(liberate_state::fix_scan),this), 8, 8, 32, 32); m_fix_tilemap->set_transparent_pen(0); } /***************************************************************************/ PALETTE_INIT_MEMBER(liberate_state,liberate) { const uint8_t *color_prom = memregion("proms")->base(); int i, bit0, bit1, bit2, g, r, b; for (i = 0;i < 32;i++) { /* red component */ bit0 = (*color_prom >> 0) & 0x01; bit1 = (*color_prom >> 1) & 0x01; bit2 = (*color_prom >> 2) & 0x01; r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* green component */ bit0 = (*color_prom >> 3) & 0x01; bit1 = (*color_prom >> 4) & 0x01; bit2 = (*color_prom >> 5) & 0x01; g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* blue component */ bit0 = 0; bit1 = (*color_prom >> 6) & 0x01; bit2 = (*color_prom >> 7) & 0x01; b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; color_prom++; palette.set_pen_color(i,rgb_t(r,g,b)); } palette.set_pen_color(32,rgb_t(0,0,0)); /* Allocate black for when no background is displayed */ } /***************************************************************************/ void liberate_state::liberate_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect ) { uint8_t *spriteram = m_spriteram; int offs; /* Sprites */ for (offs = 0x000; offs < 0x800; offs += 4) { int multi, fx, fy, sx, sy, sy2, code, color; /* Byte 0: 0x01 - ? 0x02 - Y flip 0x04 - X flip 0x08 - Colour? 0x10 - Multi sprite set 0x60 - Tile (high bits) 0x80 - ? Byte 1: 0xff - Tile (low bits) Byte 2: 0xff - Y position Byte 3: 0xff - X position */ code = spriteram[offs + 1] + ((spriteram[offs + 0] & 0x60) << 3); sx = 240 - spriteram[offs + 3]; sy = 240 - spriteram[offs + 2]; color = ((spriteram[offs + 1] & 0x08) >> 3); // ? fx = spriteram[offs + 0] & 0x04; fy = spriteram[offs + 0] & 0x02; multi = spriteram[offs + 0] & 0x10; if (multi && fy == 0) sy -= 16; if (flip_screen()) { sy = 240 - sy; sx = 240 - sx; if (fy) sy2 = sy + 16; else sy2 = sy - 16; if (fx) fx = 0; else fx = 1; if (fy) fy = 0; else fy = 1; } else { if (fy) sy2 = sy - 16; else sy2 = sy + 16; } m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, fx,fy, sx,sy,0); if (multi) m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code+1, color, fx,fy, sx,sy2,0); } } void liberate_state::prosport_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect ) { int offs, multi, fx, fy, sx, sy, sy2, code, code2, color, gfx_region; uint8_t *spriteram = m_spriteram; for (offs = 0x000; offs < 0x800; offs += 4) { if ((spriteram[offs + 0] & 1) != 1) continue; code = spriteram[offs + 1] + ((spriteram[offs + 0] & 0x3) << 8); code2 = code + 1; if(m_io_ram[0] & 0x40) //dynamic ram-based gfxs for Pro Golf gfx_region = 3 + 4; else gfx_region = ((m_io_ram[0] & 0x30) >> 4) + 4; multi = spriteram[offs + 0] & 0x10; sy = spriteram[offs + 2]; if (multi) sy += 16; sx = (240 - spriteram[offs + 3]); // sy = (240 - spriteram[offs + 2]);//-16; sy = 240 - sy; color = 1;//(m_io_ram[4] & 2) + 1;//(spriteram[offs + 0] & 0x4) >> 2; fy = spriteram[offs + 0] & 0x02; fx = spriteram[offs + 0] & 0x04; multi = 0;// spriteram[offs + 0] & 0x10; // if (multi) sy -= 16; if ((fy && multi) || (fx && multi)) { code2 = code; code++; } if (flip_screen()) { sy = 240 - sy; sx = 240 - sx; if (fx) fx = 0; else fx = 1; if (fy) fy = 0; else fy = 1; sy2 = sy - 16; } else { sy2 = sy + 16; } m_gfxdecode->gfx(gfx_region)->transpen(bitmap,cliprect, code, color, fx,fy, sx,sy,0); if (multi) m_gfxdecode->gfx(gfx_region)->transpen(bitmap,cliprect, code2, color, fx,fy, sx,sy2,0); } } void liberate_state::boomrang_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect, int pri ) { uint8_t *spriteram = m_spriteram; int offs, multi, fx, fy, sx, sy, sy2, code, code2, color; for (offs = 0x000; offs < 0x800; offs += 4) { if ((spriteram[offs + 0] & 1) != 1) continue; if ((spriteram[offs + 0] & 0x8) != pri) continue; code = spriteram[offs + 1] + ((spriteram[offs + 0] & 0xe0) << 3); code2 = code + 1; multi = spriteram[offs + 0] & 0x10; sy=spriteram[offs + 2]; if (multi) sy += 16; sx = (240 - spriteram[offs + 3]); // sy = (240-spriteram[offs + 2]);//-16; sy = 240 - sy; color = (spriteram[offs + 0] & 0x4) >> 2; fx = 0; fy = spriteram[offs + 0] & 0x02; multi = spriteram[offs + 0] & 0x10; // if (multi) sy -= 16; if (fy && multi) { code2 = code; code++; } if (flip_screen()) { sy = 240 - sy; sx = 240 - sx; if (fx) fx = 0; else fx = 1; if (fy) fy = 0; else fy = 1; sy2 = sy - 16; } else { sy2 = sy + 16; } m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, fx,fy, sx,sy,0); if (multi) m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code2, color, fx,fy, sx,sy2,0); } } void liberate_state::prosoccr_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect ) { uint8_t *spriteram = m_spriteram; int offs, code, fx, fy, sx, sy; for (offs = 0x000; offs < 0x400; offs += 4) { if ((spriteram[offs + 0] & 1) != 1) continue; code = spriteram[offs + 1]; sy = 240 - spriteram[offs + 2]; sx = 240 - spriteram[offs + 3]; fx = spriteram[offs + 0] & 4; fy = spriteram[offs + 0] & 2; m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, 0, fx,fy, sx,sy,0); } } /***************************************************************************/ uint32_t liberate_state::screen_update_prosoccr(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_back_tilemap->set_scrolly(0, m_io_ram[1]); m_back_tilemap->set_scrollx(0, -m_io_ram[0]); if (m_background_disable) bitmap.fill(32, cliprect); else m_back_tilemap->draw(screen, bitmap, cliprect, 0, 0); m_fix_tilemap->draw(screen, bitmap, cliprect, 0, 0); prosoccr_draw_sprites(bitmap, cliprect); return 0; } uint32_t liberate_state::screen_update_prosport(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { uint8_t *videoram = m_videoram; uint8_t *colorram = m_colorram; int mx, my, tile, offs, gfx_region; int scrollx, scrolly; bitmap.fill(0, cliprect); offs = 0; /* TODO: what's bits 0 and 2 for? Internal scrolling state? */ scrolly = ((m_io_ram[0] & 0x8) << 5); scrollx = ((m_io_ram[0] & 0x2) << 7) | (m_io_ram[1]); m_back_tilemap->set_scrolly(0, scrolly); m_back_tilemap->set_scrollx(0, -scrollx); m_back_tilemap->draw(screen, bitmap, cliprect, 0, 0); // popmessage("%d %02x %02x %02x %02x %02x %02x %02x %02x",scrollx,deco16_io_ram[0],deco16_io_ram[1],deco16_io_ram[2],deco16_io_ram[3] // ,deco16_io_ram[4],deco16_io_ram[5],deco16_io_ram[6],deco16_io_ram[7]); for (offs = 0; offs < 0x400; offs++) { tile = videoram[offs] + ((colorram[offs] & 0x3) << 8); if(m_io_ram[0] & 0x40) //dynamic ram-based gfxs for Pro Golf gfx_region = 3; else gfx_region = ((m_io_ram[0] & 0x30) >> 4); my = (offs) % 32; mx = (offs) / 32; m_gfxdecode->gfx(gfx_region)->transpen(bitmap,cliprect, tile, 1, 0, 0, 248 - 8 * mx, 8 * my, 0); } prosport_draw_sprites(bitmap, cliprect); return 0; } uint32_t liberate_state::screen_update_boomrang(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_back_tilemap->set_scrolly(0, m_io_ram[1]); m_back_tilemap->set_scrollx(0, -m_io_ram[0]); if (m_background_disable) bitmap.fill(32, cliprect); else m_back_tilemap->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER1, 0); boomrang_draw_sprites(bitmap,cliprect,8); if (!m_background_disable) m_back_tilemap->draw(screen, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 0); boomrang_draw_sprites(bitmap, cliprect, 0); m_fix_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; } uint32_t liberate_state::screen_update_liberate(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { m_back_tilemap->set_scrolly(0, m_io_ram[1]); m_back_tilemap->set_scrollx(0, -m_io_ram[0]); if (m_background_disable) bitmap.fill(32, cliprect); else m_back_tilemap->draw(screen, bitmap, cliprect, 0, 0); liberate_draw_sprites(bitmap, cliprect); m_fix_tilemap->draw(screen, bitmap, cliprect, 0, 0); return 0; }