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vidhrdw
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ultraman.c
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C/C++ Source or Header
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2000-03-29
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4KB
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151 lines
#include "driver.h"
#include "tilemap.h"
#include "vidhrdw/generic.h"
#include "vidhrdw/konamiic.h"
#define SPRITEROM_MEM_REGION REGION_GFX1
#define ZOOMROM0_MEM_REGION REGION_GFX2
#define ZOOMROM1_MEM_REGION REGION_GFX3
#define ZOOMROM2_MEM_REGION REGION_GFX4
static int sprite_colorbase, zoom_colorbase[3];
extern unsigned char* ultraman_regs;
/***************************************************************************
Callbacks for the K051960
***************************************************************************/
static void sprite_callback(int *code,int *color,int *priority)
{
*priority = (*color & 0x80) >> 7;
*color = sprite_colorbase + ((*color & 0x7e) >> 1);
}
/***************************************************************************
Callbacks for the K051316
***************************************************************************/
static void zoom_callback_0(int *code,int *color)
{
unsigned short data = READ_WORD(&ultraman_regs[0x18]);
*code |= ((*color & 0x07) << 8) | (data & 0x02) << 10;
*color = zoom_colorbase[0] + ((*color & 0xf8) >> 3);
}
static void zoom_callback_1(int *code,int *color)
{
unsigned short data = READ_WORD(&ultraman_regs[0x18]);
*code |= ((*color & 0x07) << 8) | (data & 0x08) << 8;
*color = zoom_colorbase[1] + ((*color & 0xf8) >> 3);
}
static void zoom_callback_2(int *code,int *color)
{
unsigned short data = READ_WORD(&ultraman_regs[0x18]);
*code |= ((*color & 0x07) << 8) | (data & 0x20) << 6;
*color = zoom_colorbase[2] + ((*color & 0xf8) >> 3);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
int ultraman_vh_start(void)
{
sprite_colorbase = 192;
zoom_colorbase[0] = 0;
zoom_colorbase[1] = 64;
zoom_colorbase[2] = 128;
if (K051960_vh_start(SPRITEROM_MEM_REGION,NORMAL_PLANE_ORDER,sprite_callback))
{
return 1;
}
if (K051316_vh_start_0(ZOOMROM0_MEM_REGION,4,zoom_callback_0))
{
K051960_vh_stop();
return 1;
}
if (K051316_vh_start_1(ZOOMROM1_MEM_REGION,4,zoom_callback_1))
{
K051960_vh_stop();
K051316_vh_stop_0();
return 1;
}
if (K051316_vh_start_2(ZOOMROM2_MEM_REGION,4,zoom_callback_2))
{
K051960_vh_stop();
K051316_vh_stop_0();
K051316_vh_stop_1();
return 1;
}
K051316_set_offset(0, 8, 0);
K051316_set_offset(1, 8, 0);
K051316_set_offset(2, 8, 0);
return 0;
}
void ultraman_vh_stop(void)
{
K051960_vh_stop();
K051316_vh_stop_0();
K051316_vh_stop_1();
K051316_vh_stop_2();
}
/***************************************************************************
Display Refresh
***************************************************************************/
void ultraman_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
{
int i;
K051316_tilemap_update_0();
K051316_tilemap_update_1();
K051316_tilemap_update_2();
palette_init_used_colors();
K051960_mark_sprites_colors();
/* set transparent pens for the K051316 */
for (i = 0;i < 64;i++)
{
palette_used_colors[(zoom_colorbase[0] + i) * 16] = PALETTE_COLOR_TRANSPARENT;
palette_used_colors[(zoom_colorbase[1] + i) * 16] = PALETTE_COLOR_TRANSPARENT;
palette_used_colors[(zoom_colorbase[2] + i) * 16] = PALETTE_COLOR_TRANSPARENT;
}
if (palette_recalc())
tilemap_mark_all_pixels_dirty(ALL_TILEMAPS);
tilemap_render(ALL_TILEMAPS);
fillbitmap(bitmap,Machine->pens[zoom_colorbase[2] * 16],&Machine->drv->visible_area);
K051316_zoom_draw_2(bitmap,0);
K051316_zoom_draw_1(bitmap,0);
K051960_sprites_draw(bitmap,0,0);
K051316_zoom_draw_0(bitmap,0);
K051960_sprites_draw(bitmap,1,1);
}