/****************************************************************************** Video Hardware for Nichibutsu Mahjong series. Driver by Takahiro Nogi 1999/11/05 - ******************************************************************************/ #include "driver.h" #include "nb1413m3.h" static int mjsikaku_scrolly; static int blitter_destx, blitter_desty; static int blitter_sizex, blitter_sizey; static int blitter_direction_x, blitter_direction_y; static int blitter_src_addr; static int mjsikaku_gfxrom; static int mjsikaku_dispflag; static int mjsikaku_gfxflag2; static int mjsikaku_gfxflag3; static int mjsikaku_flipscreen; static int mjsikaku_screen_refresh; static int mjsikaku_gfxmode; static mame_bitmap *mjsikaku_tmpbitmap; static UINT16 *mjsikaku_videoram; static UINT8 *nbmj8688_clut; static UINT8 *HD61830B_ram[2]; static int HD61830B_instr[2]; static int HD61830B_addr[2]; static void mjsikaku_vramflip(void); static void mbmj8688_gfxdraw(int gfxtype); /* the blitter can copy data both in "direct" mode, where every byte of the source data is copied verbatim to video RAM *twice* (thus doubling the pixel width), and in "lookup" mode, where the source byte is taken 4 bits at a time and indexed though a lookup table. Video RAM directly maps to a RGB output. In the first version of the hardware the palette was 8-bit, then they added more video RAM to have better color reproduction in photos. This was done in different ways, which differ for the implementation and the control over pixel color in the two drawing modes. */ enum { GFXTYPE_8BIT, // direct mode: 8-bit; lookup table: 8-bit GFXTYPE_HYBRID_12BIT, // direct mode: 12-bit; lookup table: 8-bit GFXTYPE_HYBRID_16BIT, // direct mode: 16-bit; lookup table: 12-bit GFXTYPE_PURE_16BIT, // direct mode: 16-bit; lookup table: 16-bit GFXTYPE_PURE_12BIT // direct mode: n/a; lookup table: 12-bit }; /****************************************************************************** ******************************************************************************/ PALETTE_INIT( mbmj8688_8bit ) { int i; int bit0, bit1, bit2, r, g, b; /* initialize 332 RGB lookup */ for (i = 0; i < 0x100; i++) { // xxxxxxxx_bbgggrrr /* red component */ bit0 = ((i >> 0) & 0x01); bit1 = ((i >> 1) & 0x01); bit2 = ((i >> 2) & 0x01); r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* green component */ bit0 = ((i >> 3) & 0x01); bit1 = ((i >> 4) & 0x01); bit2 = ((i >> 5) & 0x01); g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* blue component */ bit0 = 0; bit1 = ((i >> 6) & 0x01); bit2 = ((i >> 7) & 0x01); b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; palette_set_color(machine, i, MAKE_RGB(r, g, b)); } } PALETTE_INIT( mbmj8688_12bit ) { int i; int r, g, b; /* initialize 444 RGB lookup */ for (i = 0; i < 0x1000; i++) { // high and low bytes swapped for convenience r = ((i & 0x07) << 1) | (((i >> 8) & 0x01) >> 0); g = ((i & 0x38) >> 2) | (((i >> 8) & 0x02) >> 1); b = ((i & 0xc0) >> 4) | (((i >> 8) & 0x0c) >> 2); palette_set_color_rgb(machine, i, pal4bit(r), pal4bit(g), pal4bit(b)); } } PALETTE_INIT( mbmj8688_16bit ) { int i; int r, g, b; /* initialize 655 RGB lookup */ for (i = 0; i < 0x10000; i++) { r = (((i & 0x0700) >> 5) | ((i & 0x0007) >> 0)); // R 6bit g = (((i & 0x3800) >> 9) | ((i & 0x0018) >> 3)); // G 5bit b = (((i & 0xc000) >> 11) | ((i & 0x00e0) >> 5)); // B 5bit palette_set_color_rgb(machine, i, pal6bit(r), pal5bit(g), pal5bit(b)); } } WRITE8_HANDLER( nbmj8688_clut_w ) { nbmj8688_clut[offset] = (data ^ 0xff); } /****************************************************************************** ******************************************************************************/ WRITE8_HANDLER( nbmj8688_blitter_w ) { switch (offset) { case 0x00: blitter_src_addr = (blitter_src_addr & 0xff00) | data; break; case 0x01: blitter_src_addr = (blitter_src_addr & 0x00ff) | (data << 8); break; case 0x02: blitter_destx = data; break; case 0x03: blitter_desty = data; break; case 0x04: blitter_sizex = data; break; case 0x05: blitter_sizey = data; /* writing here also starts the blit */ mbmj8688_gfxdraw(mjsikaku_gfxmode); break; case 0x06: blitter_direction_x = (data & 0x01) ? 1 : 0; blitter_direction_y = (data & 0x02) ? 1 : 0; mjsikaku_flipscreen = (data & 0x04) ? 0 : 1; mjsikaku_dispflag = (data & 0x08) ? 0 : 1; mjsikaku_vramflip(); break; case 0x07: break; } } WRITE8_HANDLER( mjsikaku_gfxflag2_w ) { mjsikaku_gfxflag2 = data; if (nb1413m3_type == NB1413M3_SEIHAM || nb1413m3_type == NB1413M3_KORINAI || nb1413m3_type == NB1413M3_KORINAIM || nb1413m3_type == NB1413M3_LIVEGAL) mjsikaku_gfxflag2 ^= 0x20; if (nb1413m3_type == NB1413M3_OJOUSANM || nb1413m3_type == NB1413M3_RYUUHA) mjsikaku_gfxflag2 |= 0x20; } static WRITE8_HANDLER( mjsikaku_gfxflag3_w ) { mjsikaku_gfxflag3 = (data & 0xe0); } WRITE8_HANDLER( mjsikaku_scrolly_w ) { mjsikaku_scrolly = data; } WRITE8_HANDLER( mjsikaku_romsel_w ) { mjsikaku_gfxrom = (data & 0x0f); if ((mjsikaku_gfxrom << 17) > (memory_region_length(REGION_GFX1) - 1)) { #ifdef MAME_DEBUG popmessage("GFXROM BANK OVER!!"); #endif mjsikaku_gfxrom &= (memory_region_length(REGION_GFX1) / 0x20000 - 1); } } WRITE8_HANDLER( secolove_romsel_w ) { mjsikaku_gfxrom = ((data & 0xc0) >> 4) + (data & 0x03); mjsikaku_gfxflag2_w(0, data); if ((mjsikaku_gfxrom << 17) > (memory_region_length(REGION_GFX1) - 1)) { #ifdef MAME_DEBUG popmessage("GFXROM BANK OVER!!"); #endif mjsikaku_gfxrom &= (memory_region_length(REGION_GFX1) / 0x20000 - 1); } } WRITE8_HANDLER( crystalg_romsel_w ) { mjsikaku_gfxrom = (data & 0x03); mjsikaku_gfxflag2_w(0, data); if ((mjsikaku_gfxrom << 17) > (memory_region_length(REGION_GFX1) - 1)) { #ifdef MAME_DEBUG popmessage("GFXROM BANK OVER!!"); #endif mjsikaku_gfxrom &= (memory_region_length(REGION_GFX1) / 0x20000 - 1); } } WRITE8_HANDLER( seiha_romsel_w ) { mjsikaku_gfxrom = (data & 0x1f); mjsikaku_gfxflag3_w(0, data); if ((mjsikaku_gfxrom << 17) > (memory_region_length(REGION_GFX1) - 1)) { #ifdef MAME_DEBUG popmessage("GFXROM BANK OVER!!"); #endif mjsikaku_gfxrom &= (memory_region_length(REGION_GFX1) / 0x20000 - 1); } } /****************************************************************************** ******************************************************************************/ void mjsikaku_vramflip(void) { static int mjsikaku_flipscreen_old = 0; int x, y; UINT16 color1, color2; if (mjsikaku_flipscreen == mjsikaku_flipscreen_old) return; for (y = 0; y < (256 / 2); y++) { for (x = 0; x < 512; x++) { color1 = mjsikaku_videoram[(y * 512) + x]; color2 = mjsikaku_videoram[((y ^ 0xff) * 512) + (x ^ 0x1ff)]; mjsikaku_videoram[(y * 512) + x] = color2; mjsikaku_videoram[((y ^ 0xff) * 512) + (x ^ 0x1ff)] = color1; } } mjsikaku_flipscreen_old = mjsikaku_flipscreen; mjsikaku_screen_refresh = 1; } static void update_pixel(int x, int y) { int color = mjsikaku_videoram[(y * 512) + x]; *BITMAP_ADDR16(mjsikaku_tmpbitmap, y, x) = Machine->pens[color]; } static void writeram_low(int x, int y, int color) { mjsikaku_videoram[(y * 512) + x] &= 0xff00; mjsikaku_videoram[(y * 512) + x] |= color; update_pixel(x, y); } static void writeram_high(int x, int y, int color) { mjsikaku_videoram[(y * 512) + x] &= 0x00ff; mjsikaku_videoram[(y * 512) + x] |= color << 8; update_pixel(x, y); } static TIMER_CALLBACK( blitter_timer_callback ) { nb1413m3_busyflag = 1; } static void mbmj8688_gfxdraw(int gfxtype) { UINT8 *GFX = memory_region(REGION_GFX1); int x, y; int dx1, dx2, dy; int startx, starty; int sizex, sizey; int skipx, skipy; int ctrx, ctry; int gfxaddr; UINT16 color, color1, color2; if (gfxtype == GFXTYPE_PURE_12BIT) { if (mjsikaku_gfxflag2 & 0x20) return; } nb1413m3_busyctr = 0; startx = blitter_destx + blitter_sizex; starty = blitter_desty + blitter_sizey; if (blitter_direction_x) { sizex = blitter_sizex ^ 0xff; skipx = 1; } else { sizex = blitter_sizex; skipx = -1; } if (blitter_direction_y) { sizey = blitter_sizey ^ 0xff; skipy = 1; } else { sizey = blitter_sizey; skipy = -1; } gfxaddr = (mjsikaku_gfxrom << 17) + (blitter_src_addr << 1); //popmessage("ADDR:%08X DX:%03d DY:%03d SX:%03d SY:%03d", gfxaddr, startx, starty, sizex, sizey); //if (blitter_direction_x|blitter_direction_y) popmessage("ADDR:%08X FX:%01d FY:%01d", gfxaddr, blitter_direction_x, blitter_direction_y); for (y = starty, ctry = sizey; ctry >= 0; y += skipy, ctry--) { for (x = startx, ctrx = sizex; ctrx >= 0; x += skipx, ctrx--) { if ((gfxaddr > (memory_region_length(REGION_GFX1) - 1))) { #ifdef MAME_DEBUG popmessage("GFXROM ADDRESS OVER!!"); #endif gfxaddr = 0; } color = GFX[gfxaddr++]; dx1 = (2 * x + 0) & 0x1ff; dx2 = (2 * x + 1) & 0x1ff; dy = (y + mjsikaku_scrolly) & 0xff; if (mjsikaku_flipscreen) { dx1 ^= 0x1ff; dx2 ^= 0x1ff; dy ^= 0xff; } if (gfxtype == GFXTYPE_HYBRID_16BIT) { if (mjsikaku_gfxflag3 & 0x40) { // direct mode if (mjsikaku_gfxflag3 & 0x80) { /* least significant bits */ if (color != 0xff) { writeram_low(dx1, dy, color); writeram_low(dx2, dy, color); } } else { /* most significant bits */ if (color != 0xff) { writeram_high(dx1, dy, color); writeram_high(dx2, dy, color); } } } else { /* 16-bit palette with 4-to-12 bit lookup (!) */ // lookup table mode // unknown flag (seiha, seiham) // if (mjsikaku_gfxflag3 & 0x80) return; // unknown (seiha, seiham, iemoto, ojousan) if (!(mjsikaku_gfxflag2 & 0x20)) return; if (blitter_direction_x) { // flip color1 = (color & 0x0f) >> 0; color2 = (color & 0xf0) >> 4; } else { // normal color1 = (color & 0xf0) >> 4; color2 = (color & 0x0f) >> 0; } color1 = (nbmj8688_clut[color1] << 8) | ((nbmj8688_clut[color1 | 0x10] & 0x0f) << 4); color2 = (nbmj8688_clut[color2] << 8) | ((nbmj8688_clut[color2 | 0x10] & 0x0f) << 4); if (color1 != 0xfff0) { /* extend color from 12-bit to 16-bit */ color1 = (color1 & 0xffc0) | ((color1 & 0x20) >> 1) | ((color1 & 0x10) >> 2); mjsikaku_videoram[(dy * 512) + dx1] = color1; update_pixel(dx1, dy); } if (color2 != 0xfff0) { /* extend color from 12-bit to 16-bit */ color2 = (color2 & 0xffc0) | ((color2 & 0x20) >> 1) | ((color2 & 0x10) >> 2); mjsikaku_videoram[(dy * 512) + dx2] = color2; update_pixel(dx2, dy); } } } else if (gfxtype == GFXTYPE_PURE_12BIT) { /* 12-bit palette with 4-to-12 bit lookup table */ if (blitter_direction_x) { // flip color1 = (color & 0x0f) >> 0; color2 = (color & 0xf0) >> 4; } else { // normal color1 = (color & 0xf0) >> 4; color2 = (color & 0x0f) >> 0; } color1 = nbmj8688_clut[color1] | ((nbmj8688_clut[color1 | 0x10] & 0x0f) << 8); color2 = nbmj8688_clut[color2] | ((nbmj8688_clut[color2 | 0x10] & 0x0f) << 8); if (color1 != 0x0fff) { mjsikaku_videoram[(dy * 512) + dx1] = color1; update_pixel(dx1, dy); } if (color2 != 0x0fff) { mjsikaku_videoram[(dy * 512) + dx2] = color2; update_pixel(dx2, dy); } } else { if (gfxtype == GFXTYPE_HYBRID_12BIT && (mjsikaku_gfxflag2 & 0x20)) { /* 4096 colors mode, wedged in on top of normal mode Here we affect only the 4 least significant bits, the others are changed as usual. */ if (mjsikaku_gfxflag2 & 0x10) { // 4096 colors low mode (2nd draw upper) color = nbmj8688_clut[((color & 0xf0) >> 4)]; } else { // 4096 colors low mode (1st draw lower) color = nbmj8688_clut[((color & 0x0f) >> 0)]; } if (color != 0xff) { color &= 0x0f; writeram_high(dx1, dy, color); writeram_high(dx2, dy, color); } } else { if (mjsikaku_gfxflag2 & 0x04) { // direct mode color1 = color2 = color; } else { // lookup table mode if (blitter_direction_x) { // flip color1 = (color & 0x0f) >> 0; color2 = (color & 0xf0) >> 4; } else { // normal color1 = (color & 0xf0) >> 4; color2 = (color & 0x0f) >> 0; } color1 = nbmj8688_clut[color1]; color2 = nbmj8688_clut[color2]; } if (gfxtype == GFXTYPE_PURE_16BIT && !(mjsikaku_gfxflag2 & 0x20)) { /* 16-bit palette most significant bits */ if (color1 != 0xff) writeram_high(dx1, dy, color1); if (color2 != 0xff) writeram_high(dx2, dy, color2); } else { /* 8-bit palette or 16-bit palette least significant bits */ if (color1 != 0xff) writeram_low(dx1, dy, color1); if (color2 != 0xff) writeram_low(dx2, dy, color2); } } } nb1413m3_busyctr++; } } nb1413m3_busyflag = 0; if (gfxtype == GFXTYPE_8BIT) timer_set(attotime_mul(ATTOTIME_IN_HZ(400000), nb1413m3_busyctr), 0, blitter_timer_callback); else timer_set(attotime_mul(ATTOTIME_IN_HZ(400000), nb1413m3_busyctr), 0, blitter_timer_callback); } /****************************************************************************** ******************************************************************************/ static void common_video_start(void) { mjsikaku_tmpbitmap = auto_bitmap_alloc(512, 256, Machine->screen[0].format); mjsikaku_videoram = auto_malloc(512 * 256 * sizeof(UINT16)); nbmj8688_clut = auto_malloc(0x20 * sizeof(UINT8)); memset(mjsikaku_videoram, 0, (512 * 256 * sizeof(UINT16))); mjsikaku_scrolly = 0; // reset because crystalg/crystal2 don't write to this register } VIDEO_START( mbmj8688_8bit ) { mjsikaku_gfxmode = GFXTYPE_8BIT; common_video_start(); } VIDEO_START( mbmj8688_hybrid_12bit ) { mjsikaku_gfxmode = GFXTYPE_HYBRID_12BIT; common_video_start(); } VIDEO_START( mbmj8688_pure_12bit ) { mjsikaku_gfxmode = GFXTYPE_PURE_12BIT; common_video_start(); } VIDEO_START( mbmj8688_hybrid_16bit ) { mjsikaku_gfxmode = GFXTYPE_HYBRID_16BIT; common_video_start(); } VIDEO_START( mbmj8688_pure_16bit ) { mjsikaku_gfxmode = GFXTYPE_PURE_16BIT; common_video_start(); } VIDEO_START( mbmj8688_pure_16bit_LCD ) { mjsikaku_gfxmode = GFXTYPE_PURE_16BIT; HD61830B_ram[0] = auto_malloc(0x10000); HD61830B_ram[1] = auto_malloc(0x10000); common_video_start(); } /****************************************************************************** Quick and dirty implementation of the bare minimum required to elmulate the Hitachi HD61830B LCD controller. ******************************************************************************/ static void nbmj8688_HD61830B_instr_w(int chip,int offset,int data) { HD61830B_instr[chip] = data; } static void nbmj8688_HD61830B_data_w(int chip,int offset,int data) { switch (HD61830B_instr[chip]) { case 0x0a: // set cursor address (low order) HD61830B_addr[chip] = (HD61830B_addr[chip] & 0xff00) | data; break; case 0x0b: // set cursor address (high order) HD61830B_addr[chip] = (HD61830B_addr[chip] & 0x00ff) | (data << 8); break; case 0x0c: // write display data HD61830B_ram[chip][HD61830B_addr[chip]++] = data; break; default: logerror("HD61830B unsupported instruction %02x %02x\n",HD61830B_instr[chip],data); break; } } WRITE8_HANDLER( nbmj8688_HD61830B_0_instr_w ) { nbmj8688_HD61830B_instr_w(0,offset,data); } WRITE8_HANDLER( nbmj8688_HD61830B_1_instr_w ) { nbmj8688_HD61830B_instr_w(1,offset,data); } WRITE8_HANDLER( nbmj8688_HD61830B_both_instr_w ) { nbmj8688_HD61830B_instr_w(0,offset,data); nbmj8688_HD61830B_instr_w(1,offset,data); } WRITE8_HANDLER( nbmj8688_HD61830B_0_data_w ) { nbmj8688_HD61830B_data_w(0,offset,data); } WRITE8_HANDLER( nbmj8688_HD61830B_1_data_w ) { nbmj8688_HD61830B_data_w(1,offset,data); } WRITE8_HANDLER( nbmj8688_HD61830B_both_data_w ) { nbmj8688_HD61830B_data_w(0,offset,data); nbmj8688_HD61830B_data_w(1,offset,data); } /****************************************************************************** ******************************************************************************/ VIDEO_UPDATE( mbmj8688 ) { int x, y; if (mjsikaku_screen_refresh) { mjsikaku_screen_refresh = 0; for (y = 0; y < 256; y++) { for (x = 0; x < 512; x++) { update_pixel(x,y); } } } if (mjsikaku_dispflag) { int scrolly; if (mjsikaku_flipscreen) scrolly = mjsikaku_scrolly; else scrolly = (-mjsikaku_scrolly) & 0xff; copybitmap(bitmap, mjsikaku_tmpbitmap, 0, 0, 0, scrolly, cliprect, TRANSPARENCY_NONE, 0); copybitmap(bitmap, mjsikaku_tmpbitmap, 0, 0, 0, scrolly - 256, cliprect, TRANSPARENCY_NONE, 0); } else { fillbitmap(bitmap, machine->pens[0], 0); } return 0; } VIDEO_UPDATE( mbmj8688_LCD ) { int x, y, b; if(screen==0) video_update_mbmj8688(machine,screen,bitmap,cliprect); if (screen==1) { for (y = 0;y < 64;y++) { for (x = 0;x < 60;x++) { int data = HD61830B_ram[0][y * 60 + x]; for (b = 0;b < 8;b++) *BITMAP_ADDR16(bitmap, y, (8*x+b)) = (data & (1<