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/***************************************************************************
video.c
Functions to emulate the video hardware of the machine.
***************************************************************************/
#include "emu.h"
#include "video/konicdev.h"
#include "includes/chqflag.h"
/***************************************************************************
Callbacks for the K051960
***************************************************************************/
void chqflag_sprite_callback( running_machine &machine, int *code, int *color, int *priority, int *shadow )
{
chqflag_state *state = machine.driver_data<chqflag_state>();
*priority = (*color & 0x10) >> 4;
*color = state->m_sprite_colorbase + (*color & 0x0f);
}
/***************************************************************************
Callbacks for the K051316
***************************************************************************/
void chqflag_zoom_callback_0( running_machine &machine, int *code, int *color, int *flags )
{
chqflag_state *state = machine.driver_data<chqflag_state>();
*code |= ((*color & 0x03) << 8);
*color = state->m_zoom_colorbase[0] + ((*color & 0x3c) >> 2);
}
void chqflag_zoom_callback_1( running_machine &machine, int *code, int *color, int *flags )
{
chqflag_state *state = machine.driver_data<chqflag_state>();
*flags = TILE_FLIPYX((*color & 0xc0) >> 6);
*code |= ((*color & 0x0f) << 8);
*color = state->m_zoom_colorbase[1] + ((*color & 0x10) >> 4);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
VIDEO_START( chqflag )
{
chqflag_state *state = machine.driver_data<chqflag_state>();
machine.generic.paletteram.u8 = auto_alloc_array(machine, UINT8, 0x800);
state->m_sprite_colorbase = 0;
state->m_zoom_colorbase[0] = 0x10;
state->m_zoom_colorbase[1] = 0x02;
state_save_register_global_pointer(machine, machine.generic.paletteram.u8, 0x800);
}
/***************************************************************************
Display Refresh
***************************************************************************/
SCREEN_UPDATE( chqflag )
{
chqflag_state *state = screen->machine().driver_data<chqflag_state>();
bitmap_fill(bitmap, cliprect, 0);
k051316_zoom_draw(state->m_k051316_2, bitmap, cliprect, TILEMAP_DRAW_LAYER1, 0);
k051960_sprites_draw(state->m_k051960, bitmap, cliprect, 0, 0);
k051316_zoom_draw(state->m_k051316_2, bitmap, cliprect, TILEMAP_DRAW_LAYER0, 0);
k051960_sprites_draw(state->m_k051960, bitmap, cliprect, 1, 1);
k051316_zoom_draw(state->m_k051316_1, bitmap, cliprect, 0, 0);
return 0;
}
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