void dmndrby_state::video_start()
{
m_bg = 0;
m_racetrack_tilemap_rom = memregion("user1")->base();
m_racetrack_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(dmndrby_state::get_dmndrby_tile_info),this),TILEMAP_SCAN_ROWS,16,16, 16, 512);
m_racetrack_tilemap->mark_all_dirty();
}
uint32_t patapata_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// vregs
// 0/1 are fg scroll? 0x0ff0 , 0x07b0 is no scroll
// 2/3 are bg scroll?
// 4 is fg bank
int scrollx = (m_vregs[2]-0xff0)&0xfff;
int scrolly = (m_vregs[3]-0x7b0)&0xfff;
if (scrolly&0x200) scrollx += 0x1000;
scrolly&=0x1ff;
m_bg_tilemap->set_scrollx(0, scrollx);
m_bg_tilemap->set_scrolly(0, scrolly);
scrollx = (m_vregs[0]-0xff0)&0xfff;
scrolly = (m_vregs[1]-0x7b0)&0xfff;
if (scrolly&0x200) scrollx += 0x1000;
scrolly&=0x1ff;
m_fg_tilemap->set_scrollx(0, scrollx);
m_fg_tilemap->set_scrolly(0, scrolly);
if ((m_vregs[4]&0x3) != m_fg_bank)
{
m_fg_bank = m_vregs[4]&0x3;
m_fg_tilemap->mark_all_dirty();
}
m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
/*
popmessage("%04x %04x %04x %04x\n%04x %04x %04x %04x",
m_vregs[0], m_vregs[1],
m_vregs[2], m_vregs[3],
m_vregs[4], m_vregs[5],
m_vregs[6], m_vregs[7]);
*/
return 0;
}
UINT32 flyball_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int pitcherx = m_pitcher_horz;
int pitchery = m_pitcher_vert - 31;
int ballx = m_ball_horz - 1;
int bally = m_ball_vert - 17;
m_tmap->mark_all_dirty();
/* draw playfield */
m_tmap->draw(screen, bitmap, cliprect, 0, 0);
/* draw pitcher */
m_gfxdecode->m_gfx[1]->transpen(bitmap,cliprect, m_pitcher_pic ^ 0xf, 0, 1, 0, pitcherx, pitchery, 1);
/* draw ball */
for (int y = bally; y < bally + 2; y++)
for (int x = ballx; x < ballx + 2; x++)
if (cliprect.contains(x, y))
bitmap.pix16(y, x) = 1;
return 0;
}
UINT32 tattack_state::screen_update_tattack(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_tmap->mark_all_dirty();
m_tmap->draw(screen, bitmap, cliprect, 0,0);
return 0;
}