int nmk16_state::nmk16_bg_spr_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg_tilemap0->set_scrollx(0,-m_videoshift);
m_bg_tilemap0->draw(screen, bitmap, cliprect, 0,0);
nmk16_draw_sprites(bitmap,cliprect);
return 0;
}
int nmk16_state::nmk16_bioshipbg_sprflip_tx_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
UINT16 *tilerom = (UINT16 *)memregion("gfx5")->base();
int scrollx=-(m_bioship_scroll[1] + m_bioship_scroll[0]*256);
int scrolly=-(m_bioship_scroll[3] + m_bioship_scroll[2]*256);
m_tx_tilemap->set_scrollx(0,-m_videoshift);
if (m_redraw_bitmap)
{
int bank = m_bioship_background_bank * 0x2000;
int sx=0, sy=0, offs;
m_redraw_bitmap=0;
/* Draw background from tile rom */
for (offs = 0;offs <0x1000;offs++) {
UINT16 data = tilerom[offs+bank];
int numtile = data&0xfff;
int color = (data&0xf000)>>12;
m_gfxdecode->gfx(3)->opaque(*m_background_bitmap,m_background_bitmap->cliprect(),
numtile,
color,
0,0, /* no flip */
16*sx,16*sy);
data = tilerom[offs+0x1000+bank];
numtile = data&0xfff;
color = (data&0xf000)>>12;
m_gfxdecode->gfx(3)->opaque(*m_background_bitmap,m_background_bitmap->cliprect(),
numtile,
color,
0,0, /* no flip */
16*sx,(16*sy)+256);
sy++;
if (sy==16) {sy=0; sx++;}
}
}
copyscrollbitmap(bitmap,*m_background_bitmap,1,&scrollx,1,&scrolly,cliprect);
m_bg_tilemap0->draw(screen, bitmap, cliprect, 0,0);
nmk16_draw_sprites(bitmap,cliprect);
m_tx_tilemap->draw(screen, bitmap, cliprect, 0,0);
return 0;
}