#include "driver.h"
#include "video/konamiic.h"
static int layer_colorbase[2];
extern int bladestl_spritebank;
PALETTE_INIT( bladestl )
{
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])
/* build the lookup table for sprites. Palette is dynamic. */
for (i = 0;i < TOTAL_COLORS(1);i++)
COLOR(1,i) = 0x20 + (*(color_prom++) & 0x0f);
}
/***************************************************************************
Callback for the K007342
***************************************************************************/
static void tile_callback(int layer, int bank, int *code, int *color, int *flags)
{
*code |= ((*color & 0x0f) << 8) | ((*color & 0x40) << 6);
*color = layer_colorbase[layer];
}
/***************************************************************************
Callback for the K007420
***************************************************************************/
static void sprite_callback(int *code,int *color)
{
*code |= ((*color & 0xc0) << 2) + bladestl_spritebank;
*code = (*code << 2) | ((*color & 0x30) >> 4);
*color = 0 + (*color & 0x0f);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
VIDEO_START( bladestl )
{
layer_colorbase[0] = 0;
layer_colorbase[1] = 1;
K007342_vh_start(0,tile_callback);
K007420_vh_start(machine,1,sprite_callback);
}
/***************************************************************************
Screen Refresh
***************************************************************************/
VIDEO_UPDATE( bladestl )
{
K007342_tilemap_update();
K007342_tilemap_draw( bitmap, cliprect, 1, TILEMAP_DRAW_OPAQUE ,0);
K007420_sprites_draw( bitmap, cliprect );
K007342_tilemap_draw( bitmap, cliprect, 1, 1 | TILEMAP_DRAW_OPAQUE ,0);
K007342_tilemap_draw( bitmap, cliprect, 0, 0 ,0);
K007342_tilemap_draw( bitmap, cliprect, 0, 1 ,0);
return 0;
}