/****************************************************************************** Video Hardware for Video System Mahjong series and Pipe Dream. Driver by Takahiro Nogi 2001/02/04 - and Bryan McPhail, Nicola Salmoria, Aaron Giles ******************************************************************************/ #include "driver.h" #include "fromance.h" static UINT8 selected_videoram; static UINT8 *local_videoram[2]; static UINT8 selected_paletteram; static UINT8 *local_paletteram; static UINT32 scrollx[2], scrolly[2]; static UINT8 gfxreg; static UINT8 flipscreen; static UINT32 scrolly_ofs; static UINT32 scrollx_ofs; static UINT8 crtc_register; static UINT8 crtc_data[0x10]; static mame_timer *crtc_timer; static UINT8 flipscreen_old = -1; static tilemap *bg_tilemap, *fg_tilemap; static TIMER_CALLBACK( crtc_interrupt_gen ); /************************************* * * Tilemap callbacks * *************************************/ INLINE void get_fromance_tile_info(running_machine *machine,tile_data *tileinfo,int tile_index,int layer) { int tile = ((local_videoram[layer][0x0000 + tile_index] & 0x80) << 9) | (local_videoram[layer][0x1000 + tile_index] << 8) | local_videoram[layer][0x2000 + tile_index]; int color = local_videoram[layer][tile_index] & 0x7f; SET_TILE_INFO(layer, tile, color, 0); } static TILE_GET_INFO( get_fromance_bg_tile_info ) { get_fromance_tile_info(machine,tileinfo,tile_index, 0); } static TILE_GET_INFO( get_fromance_fg_tile_info ) { get_fromance_tile_info(machine,tileinfo,tile_index, 1); } INLINE void get_nekkyoku_tile_info(running_machine *machine,tile_data *tileinfo,int tile_index,int layer) { int tile = (local_videoram[layer][0x0000 + tile_index] << 8) | local_videoram[layer][0x1000 + tile_index]; int color = local_videoram[layer][tile_index + 0x2000] & 0x3f; SET_TILE_INFO(layer, tile, color, 0); } static TILE_GET_INFO( get_nekkyoku_bg_tile_info ) { get_nekkyoku_tile_info(machine, tileinfo, tile_index, 0); } static TILE_GET_INFO( get_nekkyoku_fg_tile_info ) { get_nekkyoku_tile_info(machine, tileinfo, tile_index, 1); } /************************************* * * Video system start * *************************************/ VIDEO_START( fromance ) { /* allocate tilemaps */ bg_tilemap = tilemap_create(get_fromance_bg_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,4, 64,64); fg_tilemap = tilemap_create(get_fromance_fg_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,4, 64,64); /* allocate local videoram */ local_videoram[0] = auto_malloc(0x1000 * 3); local_videoram[1] = auto_malloc(0x1000 * 3); /* allocate local palette RAM */ local_paletteram = auto_malloc(0x800 * 2); /* configure tilemaps */ tilemap_set_transparent_pen(fg_tilemap,15); /* reset the timer */ crtc_timer = mame_timer_alloc(crtc_interrupt_gen); scrollx_ofs = 0x159; scrolly_ofs = 0x10; /* state save */ state_save_register_global(selected_videoram); state_save_register_global_pointer(local_videoram[0], 0x1000 * 3); state_save_register_global_pointer(local_videoram[1], 0x1000 * 3); state_save_register_global(selected_paletteram); state_save_register_global_array(scrollx); state_save_register_global_array(scrolly); state_save_register_global(gfxreg); state_save_register_global(flipscreen); state_save_register_global(flipscreen_old); state_save_register_global(scrollx_ofs); state_save_register_global(scrolly_ofs); state_save_register_global(crtc_register); state_save_register_global_array(crtc_data); state_save_register_global_pointer(local_paletteram, 0x800 * 2); } VIDEO_START( nekkyoku ) { /* allocate tilemaps */ bg_tilemap = tilemap_create(get_nekkyoku_bg_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,4, 64,64); fg_tilemap = tilemap_create(get_nekkyoku_fg_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,4, 64,64); /* allocate local videoram */ local_videoram[0] = auto_malloc(0x1000 * 3); local_videoram[1] = auto_malloc(0x1000 * 3); /* allocate local palette RAM */ local_paletteram = auto_malloc(0x800 * 2); /* configure tilemaps */ tilemap_set_transparent_pen(fg_tilemap,15); /* reset the timer */ crtc_timer = mame_timer_alloc(crtc_interrupt_gen); scrollx_ofs = 0x159; scrolly_ofs = 0x10; /* state save */ state_save_register_global(selected_videoram); state_save_register_global_pointer(local_videoram[0], 0x1000 * 3); state_save_register_global_pointer(local_videoram[1], 0x1000 * 3); state_save_register_global(selected_paletteram); state_save_register_global_array(scrollx); state_save_register_global_array(scrolly); state_save_register_global(gfxreg); state_save_register_global(flipscreen); state_save_register_global(flipscreen_old); state_save_register_global(scrollx_ofs); state_save_register_global(scrolly_ofs); state_save_register_global(crtc_register); state_save_register_global_array(crtc_data); state_save_register_global_pointer(local_paletteram, 0x800 * 2); } VIDEO_START( pipedrm ) { video_start_fromance(machine); scrolly_ofs = 0x00; } VIDEO_START( hatris ) { video_start_fromance(machine); scrollx_ofs = 0xB9; scrolly_ofs = 0x00; } /************************************* * * Graphics control register * *************************************/ WRITE8_HANDLER( fromance_gfxreg_w ) { gfxreg = data; flipscreen = (data & 0x01); selected_videoram = (~data >> 1) & 1; selected_paletteram = (data >> 6) & 1; if (flipscreen != flipscreen_old) { flipscreen_old = flipscreen; tilemap_set_flip(ALL_TILEMAPS, flipscreen ? (TILEMAP_FLIPX | TILEMAP_FLIPY) : 0); } } /************************************* * * Banked palette RAM * *************************************/ READ8_HANDLER( fromance_paletteram_r ) { /* adjust for banking and read */ offset |= selected_paletteram << 11; return local_paletteram[offset]; } WRITE8_HANDLER( fromance_paletteram_w ) { int palword; /* adjust for banking and modify */ offset |= selected_paletteram << 11; local_paletteram[offset] = data; /* compute R,G,B */ palword = (local_paletteram[offset | 1] << 8) | local_paletteram[offset & ~1]; palette_set_color_rgb(Machine, offset / 2, pal5bit(palword >> 10), pal5bit(palword >> 5), pal5bit(palword >> 0)); } /************************************* * * Video RAM read/write * *************************************/ READ8_HANDLER( fromance_videoram_r ) { return local_videoram[selected_videoram][offset]; } WRITE8_HANDLER( fromance_videoram_w ) { local_videoram[selected_videoram][offset] = data; tilemap_mark_tile_dirty(selected_videoram ? fg_tilemap : bg_tilemap, offset & 0x0fff); } /************************************* * * Scroll registers * *************************************/ WRITE8_HANDLER( fromance_scroll_w ) { if (flipscreen) { switch (offset) { case 0: scrollx[1] = (data + (((gfxreg & 0x08) >> 3) * 0x100) - scrollx_ofs); break; case 1: scrolly[1] = (data + (((gfxreg & 0x04) >> 2) * 0x100) - scrolly_ofs); // - 0x10 break; case 2: scrollx[0] = (data + (((gfxreg & 0x20) >> 5) * 0x100) - scrollx_ofs); break; case 3: scrolly[0] = (data + (((gfxreg & 0x10) >> 4) * 0x100) - scrolly_ofs); break; } } else { switch (offset) { case 0: scrollx[1] = (data + (((gfxreg & 0x08) >> 3) * 0x100) - 0x1f7); break; case 1: scrolly[1] = (data + (((gfxreg & 0x04) >> 2) * 0x100) - 0xf9); break; case 2: scrollx[0] = (data + (((gfxreg & 0x20) >> 5) * 0x100) - 0x1f7); break; case 3: scrolly[0] = (data + (((gfxreg & 0x10) >> 4) * 0x100) - 0xf9); break; } } } /************************************* * * Fake video controller * *************************************/ static TIMER_CALLBACK( crtc_interrupt_gen ) { cpunum_set_input_line(1, 0, HOLD_LINE); if (param != 0) mame_timer_adjust(crtc_timer, make_mame_time(0, machine->screen[0].refresh / param), 0, make_mame_time(0, machine->screen[0].refresh / param)); } WRITE8_HANDLER( fromance_crtc_data_w ) { crtc_data[crtc_register] = data; switch (crtc_register) { /* only register we know about.... */ case 0x0b: mame_timer_adjust(crtc_timer, video_screen_get_time_until_pos(0, Machine->screen[0].visarea.max_y + 1, 0), (data > 0x80) ? 2 : 1, time_zero); break; default: logerror("CRTC register %02X = %02X\n", crtc_register, data & 0xff); break; } } WRITE8_HANDLER( fromance_crtc_register_w ) { crtc_register = data; } /************************************* * * Sprite routines (Pipe Dream) * *************************************/ static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const rectangle *cliprect, int draw_priority) { static const UINT8 zoomtable[16] = { 0,7,14,20,25,30,34,38,42,46,49,52,54,57,59,61 }; int offs; /* draw the sprites */ for (offs = 0; offs < spriteram_size; offs += 8) { int data2 = spriteram[offs + 4] | (spriteram[offs + 5] << 8); int priority = (data2 >> 4) & 1; /* turns out the sprites are the same as in aerofgt.c */ if ((data2 & 0x80) && priority == draw_priority) { int data0 = spriteram[offs + 0] | (spriteram[offs + 1] << 8); int data1 = spriteram[offs + 2] | (spriteram[offs + 3] << 8); int data3 = spriteram[offs + 6] | (spriteram[offs + 7] << 8); int code = data3 & 0xfff; int color = data2 & 0x0f; int y = (data0 & 0x1ff) - 6; int x = (data1 & 0x1ff) - 13; int yzoom = (data0 >> 12) & 15; int xzoom = (data1 >> 12) & 15; int zoomed = (xzoom | yzoom); int ytiles = ((data2 >> 12) & 7) + 1; int xtiles = ((data2 >> 8) & 7) + 1; int yflip = (data2 >> 15) & 1; int xflip = (data2 >> 11) & 1; int xt, yt; /* compute the zoom factor -- stolen from aerofgt.c */ xzoom = 16 - zoomtable[xzoom] / 8; yzoom = 16 - zoomtable[yzoom] / 8; /* wrap around */ if (x > machine->screen[0].visarea.max_x) x -= 0x200; if (y > machine->screen[0].visarea.max_y) y -= 0x200; /* flip ? */ if (flipscreen) { y = machine->screen[0].visarea.max_y - y - 16 * ytiles - 4; x = machine->screen[0].visarea.max_x - x - 16 * xtiles - 24; xflip=!xflip; yflip=!yflip; } /* normal case */ if (!xflip && !yflip) { for (yt = 0; yt < ytiles; yt++) for (xt = 0; xt < xtiles; xt++, code++) if (!zoomed) drawgfx(bitmap, machine->gfx[2], code, color, 0, 0, x + xt * 16, y + yt * 16, cliprect, TRANSPARENCY_PEN, 15); else drawgfxzoom(bitmap, machine->gfx[2], code, color, 0, 0, x + xt * xzoom, y + yt * yzoom, cliprect, TRANSPARENCY_PEN, 15, 0x1000 * xzoom, 0x1000 * yzoom); } /* xflipped case */ else if (xflip && !yflip) { for (yt = 0; yt < ytiles; yt++) for (xt = 0; xt < xtiles; xt++, code++) if (!zoomed) drawgfx(bitmap, machine->gfx[2], code, color, 1, 0, x + (xtiles - 1 - xt) * 16, y + yt * 16, cliprect, TRANSPARENCY_PEN, 15); else drawgfxzoom(bitmap, machine->gfx[2], code, color, 1, 0, x + (xtiles - 1 - xt) * xzoom, y + yt * yzoom, cliprect, TRANSPARENCY_PEN, 15, 0x1000 * xzoom, 0x1000 * yzoom); } /* yflipped case */ else if (!xflip && yflip) { for (yt = 0; yt < ytiles; yt++) for (xt = 0; xt < xtiles; xt++, code++) if (!zoomed) drawgfx(bitmap, machine->gfx[2], code, color, 0, 1, x + xt * 16, y + (ytiles - 1 - yt) * 16, cliprect, TRANSPARENCY_PEN, 15); else drawgfxzoom(bitmap, machine->gfx[2], code, color, 0, 1, x + xt * xzoom, y + (ytiles - 1 - yt) * yzoom, cliprect, TRANSPARENCY_PEN, 15, 0x1000 * xzoom, 0x1000 * yzoom); } /* x & yflipped case */ else { for (yt = 0; yt < ytiles; yt++) for (xt = 0; xt < xtiles; xt++, code++) if (!zoomed) drawgfx(bitmap, machine->gfx[2], code, color, 1, 1, x + (xtiles - 1 - xt) * 16, y + (ytiles - 1 - yt) * 16, cliprect, TRANSPARENCY_PEN, 15); else drawgfxzoom(bitmap, machine->gfx[2], code, color, 1, 1, x + (xtiles - 1 - xt) * xzoom, y + (ytiles - 1 - yt) * yzoom, cliprect, TRANSPARENCY_PEN, 15, 0x1000 * xzoom, 0x1000 * yzoom); } } } } /************************************* * * Main screen refresh * *************************************/ VIDEO_UPDATE( fromance ) { tilemap_set_scrollx(bg_tilemap, 0, scrollx[0]); tilemap_set_scrolly(bg_tilemap, 0, scrolly[0]); tilemap_set_scrollx(fg_tilemap, 0, scrollx[1]); tilemap_set_scrolly(fg_tilemap, 0, scrolly[1]); tilemap_draw(bitmap,cliprect, bg_tilemap, 0, 0); tilemap_draw(bitmap,cliprect, fg_tilemap, 0, 0); return 0; } VIDEO_UPDATE( pipedrm ) { /* there seems to be no logical mapping for the X scroll register -- maybe it's gone */ tilemap_set_scrolly(bg_tilemap, 0, scrolly[1]); tilemap_set_scrolly(fg_tilemap, 0, scrolly[0]); tilemap_draw(bitmap,cliprect, bg_tilemap, 0, 0); tilemap_draw(bitmap,cliprect, fg_tilemap, 0, 0); draw_sprites(machine,bitmap,cliprect, 0); draw_sprites(machine,bitmap,cliprect, 1); return 0; }