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// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria
#include "emu.h"
#include "includes/overdriv.h"
/***************************************************************************
Callbacks for the K053247
***************************************************************************/
K053246_CB_MEMBER(overdriv_state::sprite_callback)
{
int pri = (*color & 0xffe0) >> 5; /* ??????? */
if (pri)
*priority_mask = 0x02;
else
*priority_mask = 0x00;
*color = m_sprite_colorbase + (*color & 0x001f);
}
/***************************************************************************
Callbacks for the K051316
***************************************************************************/
K051316_CB_MEMBER(overdriv_state::zoom_callback_1)
{
*flags = (*color & 0x40) ? TILE_FLIPX : 0;
*code |= ((*color & 0x03) << 8);
*color = m_zoom_colorbase[0] + ((*color & 0x3c) >> 2);
}
K051316_CB_MEMBER(overdriv_state::zoom_callback_2)
{
*flags = (*color & 0x40) ? TILE_FLIPX : 0;
*code |= ((*color & 0x03) << 8);
*color = m_zoom_colorbase[1] + ((*color & 0x3c) >> 2);
}
/***************************************************************************
Display refresh
***************************************************************************/
uint32_t overdriv_state::screen_update_overdriv(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_sprite_colorbase = m_k053251->get_palette_index(k053251_device::CI0);
m_road_colorbase[1] = m_k053251->get_palette_index(k053251_device::CI1);
m_road_colorbase[0] = m_k053251->get_palette_index(k053251_device::CI2);
m_zoom_colorbase[1] = m_k053251->get_palette_index(k053251_device::CI3);
m_zoom_colorbase[0] = m_k053251->get_palette_index(k053251_device::CI4);
screen.priority().fill(0, cliprect);
m_k051316_1->zoom_draw(screen, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0);
m_k051316_2->zoom_draw(screen, bitmap, cliprect, 0, 1);
m_k053246->k053247_sprites_draw( bitmap,cliprect);
return 0;
}
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