/***************************************************************************
video.c
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "driver.h"
static tilemap *toptilemap;
static tilemap *bottilemap;
static tilemap *spr1tilemap;
static tilemap *spr2tilemap;
static tilemap *fgtilemap;
UINT8 *punchout_videoram2;
UINT8 *armwrest_videoram3;
UINT8 *punchout_bigsprite1ram;
UINT8 *punchout_bigsprite2ram;
UINT8 *punchout_scroll;
UINT8 *punchout_bigsprite1;
UINT8 *punchout_bigsprite2;
UINT8 *punchout_palettebank;
static UINT8 top_palette_bank,bottom_palette_bank;
/***************************************************************************
Convert the color PROMs into a more useable format.
Punch Out has a six 512x4 palette PROMs (one per gun; three for the top
monitor chars, three for everything else).
The PROMs are connected to the RGB output this way:
bit 3 -- 240 ohm resistor -- inverter -- RED/GREEN/BLUE
-- 470 ohm resistor -- inverter -- RED/GREEN/BLUE
-- 1 kohm resistor -- inverter -- RED/GREEN/BLUE
bit 0 -- 2 kohm resistor -- inverter -- RED/GREEN/BLUE
***************************************************************************/
static void convert_palette(running_machine *machine,const UINT8 *color_prom)
{
int i;
for (i = 0;i < 1024;i++)
{
int bit0,bit1,bit2,bit3,r,g,b;
bit0 = (color_prom[0] >> 0) & 0x01;
bit1 = (color_prom[0] >> 1) & 0x01;
bit2 = (color_prom[0] >> 2) & 0x01;
bit3 = (color_prom[0] >> 3) & 0x01;
r = 255 - (0x10 * bit0 + 0x21 * bit1 + 0x46 * bit2 + 0x88 * bit3);
bit0 = (color_prom[1024] >> 0) & 0x01;
bit1 = (color_prom[1024] >> 1) & 0x01;
bit2 = (color_prom[1024] >> 2) & 0x01;
bit3 = (color_prom[1024] >> 3) & 0x01;
g = 255 - (0x10 * bit0 + 0x21 * bit1 + 0x46 * bit2 + 0x88 * bit3);
bit0 = (color_prom[2*1024] >> 0) & 0x01;
bit1 = (color_prom[2*1024] >> 1) & 0x01;
bit2 = (color_prom[2*1024] >> 2) & 0x01;
bit3 = (color_prom[2*1024] >> 3) & 0x01;
b = 255 - (0x10 * bit0 + 0x21 * bit1 + 0x46 * bit2 + 0x88 * bit3);
palette_set_color(machine,i,MAKE_RGB(r,g,b));
color_prom++;
}
/* reserve the last color for the transparent pen (none of the game colors has */
/* these RGB components) */
palette_set_color(machine,1024,MAKE_RGB(240,240,240));
}
/* these depend on jumpers on the board and change from game to game */
static int gfx0inv,gfx1inv,gfx2inv,gfx3inv;
PALETTE_INIT( punchout )
{
int i;
#define TOTAL_COLORS(gfxn) (machine->gfx[gfxn]->total_colors * machine->gfx[gfxn]->color_granularity)
#define COLOR(gfxn,offs) (colortable[machine->drv->gfxdecodeinfo[gfxn].color_codes_start + (offs)])
convert_palette(machine,color_prom);
/* top monitor chars */
for (i = 0;i < TOTAL_COLORS(0);i++)
COLOR(0,i ^ gfx0inv) = i;
/* bottom monitor chars */
for (i = 0;i < TOTAL_COLORS(1);i++)
COLOR(1,i ^ gfx1inv) = i + 512;
/* big sprite #1 */
for (i = 0;i < TOTAL_COLORS(2);i++)
{
if (i % 8 == 0) COLOR(2,i ^ gfx2inv) = 1024; /* transparent */
else COLOR(2,i ^ gfx2inv) = i + 512;
}
/* big sprite #2 */
for (i = 0;i < TOTAL_COLORS(3);i++)
{
if (i % 4 == 0) COLOR(3,i ^ gfx3inv) = 1024; /* transparent */
else COLOR(3,i ^ gfx3inv) = i + 512;
}
}
PALETTE_INIT( armwrest )
{
int i;
#define TOTAL_COLORS(gfxn) (machine->gfx[gfxn]->total_colors * machine->gfx[gfxn]->color_granularity)
#define COLOR(gfxn,offs) (colortable[machine->drv->gfxdecodeinfo[gfxn].color_codes_start + (offs)])
convert_palette(machine,color_prom);
/* top monitor / bottom monitor backround chars */
for (i = 0;i < TOTAL_COLORS(0);i++)
COLOR(0,i) = i;
/* bottom monitor foreground chars */
for (i = 0;i < TOTAL_COLORS(1);i++)
COLOR(1,i) = i + 512;
/* big sprite #1 */
for (i = 0;i < TOTAL_COLORS(2);i++)
{
if (i % 8 == 7) COLOR(2,i) = 1024; /* transparent */
else COLOR(2,i) = i + 512;
}
/* big sprite #2 - pen order is inverted */
for (i = 0;i < TOTAL_COLORS(3);i++)
{
if (i % 4 == 3) COLOR(3,i ^ 3) = 1024; /* transparent */
else COLOR(3,i ^ 3) = i + 512;
}
}
DRIVER_INIT( punchout )
{
gfx0inv = 0x03;
gfx1inv = 0xfc;
gfx2inv = 0xff;
gfx3inv = 0xfc;
}
DRIVER_INIT( spnchout )
{
gfx0inv = 0x00;
gfx1inv = 0xff;
gfx2inv = 0xff;
gfx3inv = 0xff;
}
DRIVER_INIT( spnchotj )
{
gfx0inv = 0xfc;
gfx1inv = 0xff;
gfx2inv = 0xff;
gfx3inv = 0xff;
}
DRIVER_INIT( armwrest )
{
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
static TILE_GET_INFO( top_get_info )
{
int code = videoram[tile_index*2] + 256 * (videoram[tile_index*2 + 1] & 0x03);
int color = ((videoram[tile_index*2 + 1] & 0x7c) >> 2) + 64 * top_palette_bank;
int flipx = videoram[tile_index*2 + 1] & 0x80;
SET_TILE_INFO(0, code, color, flipx ? TILE_FLIPX : 0);
}
static TILE_GET_INFO( bot_get_info )
{
int code = punchout_videoram2[tile_index*2] + 256 * (punchout_videoram2[tile_index*2 + 1] & 0x03);
int color = ((punchout_videoram2[tile_index*2 + 1] & 0x7c) >> 2) + 64 * bottom_palette_bank;
int flipx = punchout_videoram2[tile_index*2 + 1] & 0x80;
SET_TILE_INFO(1, code, color, flipx ? TILE_FLIPX : 0);
}
static TILE_GET_INFO( bs1_get_info )
{
int code = punchout_bigsprite1ram[tile_index*4] + 256 * (punchout_bigsprite1ram[tile_index*4 + 1] & 0x1f);
int color = (punchout_bigsprite1ram[tile_index*4 + 3] & 0x1f) + 32 * bottom_palette_bank;
int flipx = punchout_bigsprite1ram[tile_index*4 + 3] & 0x80;
SET_TILE_INFO(2, code, color, flipx ? TILE_FLIPX : 0);
}
static TILE_GET_INFO( bs2_get_info )
{
int code = punchout_bigsprite2ram[tile_index*4] + 256 * (punchout_bigsprite2ram[tile_index*4 + 1] & 0x0f);
int color = (punchout_bigsprite2ram[tile_index*4 + 3] & 0x3f) + 64 * bottom_palette_bank;
int flipx = punchout_bigsprite2ram[tile_index*4 + 3] & 0x80;
SET_TILE_INFO(3, code, color, flipx ? TILE_FLIPX : 0);
}
VIDEO_START( punchout )
{
toptilemap = tilemap_create(top_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 32,32);
bottilemap = tilemap_create(bot_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 64,32);
tilemap_set_scroll_rows(bottilemap, 32);
spr1tilemap = tilemap_create(bs1_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 16,32);
spr2tilemap = tilemap_create(bs2_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 16,32);
fgtilemap = NULL;
}
static TILE_GET_INFO( armwrest_top_get_info )
{
int code = videoram[tile_index*2] + 256 * (videoram[tile_index*2 + 1] & 0x03) +
8 * (videoram[tile_index*2 + 1] & 0x80);
int color = ((videoram[tile_index*2 + 1] & 0x7c) >> 2) + 64 * top_palette_bank;
SET_TILE_INFO(0, code, color, 0);
}
static TILE_GET_INFO( armwrest_bot_get_info )
{
int code = punchout_videoram2[tile_index*2] + 256 * (punchout_videoram2[tile_index*2 + 1] & 0x03);
int color = 128 + ((punchout_videoram2[tile_index*2 + 1] & 0x7c) >> 2) + 64 * bottom_palette_bank;
int flipx = punchout_videoram2[tile_index*2 + 1] & 0x80;
SET_TILE_INFO(0, code, color, flipx ? TILE_FLIPX : 0);
}
static TILEMAP_MAPPER( armwrest_bs1_scan )
{
int halfcols = num_cols/2;
return (col/halfcols)*(halfcols*num_rows) + row*halfcols + col%halfcols;
}
static TILE_GET_INFO( armwrest_fg_get_info )
{
int code = armwrest_videoram3[tile_index*2] + 256 * (armwrest_videoram3[tile_index*2 + 1] & 0x07);
int color = ((armwrest_videoram3[tile_index*2 + 1] & 0xf8) >> 3) + 32 * bottom_palette_bank;
int flipx = armwrest_videoram3[tile_index*2 + 1] & 0x80;
SET_TILE_INFO(1, code, color, flipx ? TILE_FLIPX : 0);
}
VIDEO_START( armwrest )
{
toptilemap = tilemap_create(armwrest_top_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 32,32);
bottilemap = tilemap_create(armwrest_bot_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 32,32);
spr1tilemap = tilemap_create(bs1_get_info, armwrest_bs1_scan, TILEMAP_TYPE_PEN, 8,8, 32,16);
spr2tilemap = tilemap_create(bs2_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 16,32);
fgtilemap = tilemap_create(armwrest_fg_get_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 32,32);
tilemap_set_transparent_pen(fgtilemap, 7);
}
WRITE8_HANDLER( punchout_videoram_w )
{
videoram[offset] = data;
tilemap_mark_tile_dirty(toptilemap, offset/2);
}
WRITE8_HANDLER( punchout_videoram2_w )
{
punchout_videoram2[offset] = data;
tilemap_mark_tile_dirty(bottilemap, offset/2);
}
WRITE8_HANDLER( armwrest_videoram3_w )
{
armwrest_videoram3[offset] = data;
tilemap_mark_tile_dirty(fgtilemap, offset/2);
}
WRITE8_HANDLER( punchout_bigsprite1ram_w )
{
punchout_bigsprite1ram[offset] = data;
tilemap_mark_tile_dirty(spr1tilemap, offset/4);
}
WRITE8_HANDLER( punchout_bigsprite2ram_w )
{
punchout_bigsprite2ram[offset] = data;
tilemap_mark_tile_dirty(spr2tilemap, offset/4);
}
WRITE8_HANDLER( punchout_palettebank_w )
{
*punchout_palettebank = data;
if (top_palette_bank != ((data >> 1) & 0x01))
{
top_palette_bank = (data >> 1) & 0x01;
tilemap_mark_all_tiles_dirty(toptilemap);
}
if (bottom_palette_bank != ((data >> 0) & 0x01))
{
bottom_palette_bank = (data >> 0) & 0x01;
if (fgtilemap != NULL)
tilemap_mark_all_tiles_dirty(fgtilemap);
tilemap_mark_all_tiles_dirty(bottilemap);
tilemap_mark_all_tiles_dirty(spr1tilemap);
tilemap_mark_all_tiles_dirty(spr2tilemap);
}
}
static void draw_big_sprite(mame_bitmap *bitmap, const rectangle *cliprect)
{
int zoom;
zoom = punchout_bigsprite1[0] + 256 * (punchout_bigsprite1[1] & 0x0f);
if (zoom)
{
mame_bitmap *sprbitmap = tilemap_get_pixmap(spr1tilemap);
int sx,sy;
UINT32 startx,starty;
int incxx,incyy;
sx = 4096 - (punchout_bigsprite1[2] + 256 * (punchout_bigsprite1[3] & 0x0f));
if (sx > 4096-4*127) sx -= 4096;
sy = -(punchout_bigsprite1[4] + 256 * (punchout_bigsprite1[5] & 1));
if (sy <= -256 + zoom/0x40) sy += 512;
sy += 12;
incxx = zoom << 6;
incyy = zoom << 6;
startx = -sx * 0x4000;
starty = -sy * 0x10000;
startx += 3740 * zoom; /* adjustment to match the screen shots */
starty -= 178 * zoom; /* and make the hall of fame picture nice */
if (punchout_bigsprite1[6] & 1) /* flip x */
{
startx = (sprbitmap->width << 16) - startx - 1;
incxx = -incxx;
}
copyrozbitmap(bitmap,sprbitmap,
startx,starty + 0x200*(2) * zoom,
incxx,0,0,incyy, /* zoom, no rotation */
0, /* no wraparound */
cliprect,TRANSPARENCY_COLOR,1024,0);
}
}
static void drawbs2(mame_bitmap *bitmap, const rectangle *cliprect)
{
mame_bitmap *sprbitmap = tilemap_get_pixmap(spr2tilemap);
int sx,sy;
sx = 512 - (punchout_bigsprite2[0] + 256 * (punchout_bigsprite2[1] & 1));
if (sx > 512-127) sx -= 512;
sx -= 55; /* adjustment to match the screen shots */
sy = -punchout_bigsprite2[2] + 256 * (punchout_bigsprite2[3] & 1);
sy += 3; /* adjustment to match the screen shots */
copybitmap(bitmap,sprbitmap,
punchout_bigsprite2[4] & 1,0,
sx,sy,
cliprect,TRANSPARENCY_COLOR,1024);
}
VIDEO_UPDATE( punchout )
{
if (screen == 1)
{
tilemap_draw(bitmap, cliprect, toptilemap, 0, 0);
if (punchout_bigsprite1[7] & 1) /* display in top monitor */
draw_big_sprite(bitmap, cliprect);
}
else
{
int offs;
/* copy the character mapped graphics */
for (offs = 0;offs < 32;offs++)
tilemap_set_scrollx(bottilemap, offs, 58 + punchout_scroll[2*offs] + 256 * (punchout_scroll[2*offs + 1] & 0x01));
tilemap_draw(bitmap, cliprect, bottilemap, 0, 0);
if (punchout_bigsprite1[7] & 2) /* display in bottom monitor */
draw_big_sprite(bitmap, cliprect);
drawbs2(bitmap, cliprect);
}
return 0;
}
VIDEO_UPDATE( armwrest )
{
if (screen == 1)
{
tilemap_draw(bitmap, cliprect, toptilemap, 0, 0);
if (punchout_bigsprite1[7] & 1) /* display in top monitor */
draw_big_sprite(bitmap, cliprect);
}
else
{
tilemap_draw(bitmap, cliprect, bottilemap, 0, 0);
if (punchout_bigsprite1[7] & 2) /* display in bottom monitor */
draw_big_sprite(bitmap, cliprect);
drawbs2(bitmap, cliprect);
tilemap_draw(bitmap, cliprect, fgtilemap, 0, 0);
}
return 0;
}