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#include "driver.h"
#include "video/konamiic.h"
static int layer_colorbase[3],sprite_colorbase;
/***************************************************************************
Callbacks for the K052109
***************************************************************************/
static void tile_callback(int layer,int bank,int *code,int *color, int *flags, int *priority)
{
*code |= ((*color & 0x0f) << 8);
*color = layer_colorbase[layer] + ((*color & 0xe0) >> 5);
}
/***************************************************************************
Callbacks for the K051960
***************************************************************************/
static void sprite_callback(int *code,int *color,int *priority,int *shadow)
{
if(*color & 0x10)
*priority = 0xfe; // under K052109_tilemap[0]
else
*priority = 0xfc; // under K052109_tilemap[1]
*color = sprite_colorbase + (*color & 0x0f);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
VIDEO_START( blockhl )
{
layer_colorbase[0] = 0;
layer_colorbase[1] = 16;
layer_colorbase[2] = 32;
sprite_colorbase = 48;
K052109_vh_start(machine,REGION_GFX1,NORMAL_PLANE_ORDER,tile_callback);
K051960_vh_start(machine,REGION_GFX2,NORMAL_PLANE_ORDER,sprite_callback);
}
VIDEO_UPDATE( blockhl )
{
fillbitmap(priority_bitmap,0,cliprect);
K052109_tilemap_update();
tilemap_draw(bitmap,cliprect,K052109_tilemap[2],TILEMAP_DRAW_OPAQUE,0);
tilemap_draw(bitmap,cliprect,K052109_tilemap[1],0,1);
tilemap_draw(bitmap,cliprect,K052109_tilemap[0],0,2);
K051960_sprites_draw(bitmap,cliprect,0,-1); // draw sprites with pdrawgfx
return 0;
}
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