UINT32 sshangha_state::screen_update_sshangha(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
m_sprgen1->draw_sprites(bitmap, cliprect, m_spriteram, 0x800, true);
// I'm pretty sure only the original has the 2nd spriteram, used for the Japanese text on the 2nd scene (non-scrolling text) in the intro of the quest (3rd in JPN) mode
if (m_spriteram2 != NULL)
m_sprgen2->draw_sprites(bitmap, cliprect, m_spriteram2, 0x800, true);
machine().tilemap().set_flip_all(flip_screen_x() ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0);
bitmap.fill(get_black_pen(machine()), cliprect);
deco16ic_pf_update(m_deco_tilegen1, m_pf1_rowscroll, m_pf2_rowscroll);
/* the tilemap 4bpp + 4bpp = 8bpp mixing actually seems external to the tilemap, note video_control is not part of the tilemap chip */
if ((m_video_control&4)==0) {
deco16ic_tilemap_12_combine_draw(m_deco_tilegen1, bitmap, cliprect, 0, 0, 1);
m_sprgen1->inefficient_copy_sprite_bitmap(bitmap, cliprect, 0x0200, 0x0200, 0x100, 0x1ff);
}
else {
deco16ic_tilemap_2_draw(m_deco_tilegen1, bitmap, cliprect, 0, 0);
m_sprgen1->inefficient_copy_sprite_bitmap(bitmap, cliprect, 0x0200, 0x0200, 0x100, 0x1ff);
deco16ic_tilemap_1_draw(m_deco_tilegen1, bitmap, cliprect, 0, 0);
}
if (m_spriteram2 != NULL)
m_sprgen2->inefficient_copy_sprite_bitmap(bitmap, cliprect, 0x0000, 0x0000, 0, 0x1ff);
m_sprgen1->inefficient_copy_sprite_bitmap(bitmap, cliprect, 0x0000, 0x0200, 0, 0x1ff);
return 0;
}
UINT32 boogwing_state::screen_update_boogwing(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
address_space &space = machine().driver_data()->generic_space();
UINT16 flip = deco16ic_pf_control_r(m_deco_tilegen1, space, 0, 0xffff);
UINT16 priority = decocomn_priority_r(m_decocomn, space, 0, 0xffff);
/* Draw sprite planes to bitmaps for later mixing */
machine().device<decospr_device>("spritegen2")->draw_sprites(bitmap, cliprect, m_spriteram2->buffer(), 0x400, true);
machine().device<decospr_device>("spritegen1")->draw_sprites(bitmap, cliprect, m_spriteram->buffer(), 0x400, true);
flip_screen_set(BIT(flip, 7));
deco16ic_pf_update(m_deco_tilegen1, m_pf1_rowscroll, m_pf2_rowscroll);
deco16ic_pf_update(m_deco_tilegen2, m_pf3_rowscroll, m_pf4_rowscroll);
/* Draw playfields */
bitmap.fill(machine().pens[0x400], cliprect); /* pen not confirmed */
machine().priority_bitmap.fill(0);
// bit&0x8 is definitely some kind of palette effect
// bit&0x4 combines playfields
if ((priority & 0x7) == 0x5)
{
deco16ic_tilemap_2_draw(m_deco_tilegen1, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0);
deco16ic_tilemap_12_combine_draw(m_deco_tilegen2, bitmap, cliprect, 0, 32);
}
else if ((priority & 0x7) == 0x1 || (priority & 0x7) == 0x2)
{
deco16ic_tilemap_2_draw(m_deco_tilegen2, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0);
deco16ic_tilemap_2_draw(m_deco_tilegen1, bitmap, cliprect, 0, 8);
deco16ic_tilemap_1_draw(m_deco_tilegen2, bitmap, cliprect, 0, 32);
}
else if ((priority & 0x7) == 0x3)
{
deco16ic_tilemap_2_draw(m_deco_tilegen2, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0);
deco16ic_tilemap_2_draw(m_deco_tilegen1, bitmap, cliprect, 0, 8);
// This mode uses playfield 3 to shadow sprites & playfield 2 (instead of
// regular alpha-blending, the destination is inverted). Not yet implemented.
// deco16ic_tilemap_3_draw(m_deco_tilegen1, bitmap, cliprect, TILEMAP_DRAW_ALPHA(0x80), 32);
}
else
{
deco16ic_tilemap_2_draw(m_deco_tilegen2, bitmap, cliprect, TILEMAP_DRAW_OPAQUE, 0);
deco16ic_tilemap_1_draw(m_deco_tilegen2, bitmap, cliprect, 0, 8);
deco16ic_tilemap_2_draw(m_deco_tilegen1, bitmap, cliprect, 0, 32);
}
mix_boogwing(machine(), bitmap,cliprect);
deco16ic_tilemap_1_draw(m_deco_tilegen1, bitmap, cliprect, 0, 0);
return 0;
}
