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// license:BSD-3-Clause
// copyright-holders:David Haywood
/* Super Slams - video, see notes in driver file */
#include "emu.h"
#include "vsystem_spr.h"
#include "includes/suprslam.h"
/* FG 'SCREEN' LAYER */
void suprslam_state::suprslam_screen_videoram_w(offs_t offset, uint16_t data)
{
m_screen_videoram[offset] = data;
m_screen_tilemap->mark_tile_dirty(offset);
}
TILE_GET_INFO_MEMBER(suprslam_state::get_suprslam_tile_info)
{
int tileno = m_screen_videoram[tile_index] & 0x0fff;
int colour = m_screen_videoram[tile_index] & 0xf000;
tileno += m_screen_bank;
colour = colour >> 12;
tileinfo.set(0, tileno, colour, 0);
}
/* BG LAYER */
void suprslam_state::suprslam_bg_videoram_w(offs_t offset, uint16_t data)
{
m_bg_videoram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
TILE_GET_INFO_MEMBER(suprslam_state::get_suprslam_bg_tile_info)
{
int tileno = m_bg_videoram[tile_index] & 0x0fff;
int colour = m_bg_videoram[tile_index] & 0xf000;
tileno += m_bg_bank;
colour = colour >> 12;
tileinfo.set(2, tileno, colour, 0);
}
uint32_t suprslam_state::suprslam_tile_callback( uint32_t code )
{
return m_sp_videoram[code];
}
void suprslam_state::video_start()
{
m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(suprslam_state::get_suprslam_bg_tile_info)), TILEMAP_SCAN_ROWS, 16, 16, 64, 64);
m_screen_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(suprslam_state::get_suprslam_tile_info)), TILEMAP_SCAN_ROWS, 8, 8, 64, 32);
m_spr_ctrl = 0;
m_screen_tilemap->set_transparent_pen(15);
}
void suprslam_state::spr_ctrl_w(uint8_t data)
{
m_spr_ctrl = data;
}
uint32_t suprslam_state::screen_update_suprslam(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_screen_tilemap->set_scrollx(0, m_screen_vregs[0x04/2] );
bitmap.fill(m_palette->black_pen(), cliprect);
m_k053936->zoom_draw(screen, bitmap, cliprect, m_bg_tilemap, 0, 0, 1);
if(!(m_spr_ctrl & 8))
m_spr->draw_sprites(m_spriteram, m_spriteram.bytes(), screen, bitmap, cliprect);
m_screen_tilemap->draw(screen, bitmap, cliprect, 0, 0);
if(m_spr_ctrl & 8)
m_spr->draw_sprites(m_spriteram, m_spriteram.bytes(), screen, bitmap, cliprect);
return 0;
}
void suprslam_state::suprslam_bank_w(uint16_t data)
{
uint16_t old_screen_bank, old_bg_bank;
old_screen_bank = m_screen_bank;
old_bg_bank = m_bg_bank;
m_screen_bank = data & 0xf000;
m_bg_bank = (data & 0x0f00) << 4;
if (m_screen_bank != old_screen_bank)
m_screen_tilemap->mark_all_dirty();
if (m_bg_bank != old_bg_bank)
m_bg_tilemap->mark_all_dirty();
}
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