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funtech/supracan.cpp: add note

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angelosa 2024-09-25 22:46:33 +02:00
parent 6b34b1149c
commit d7b8d2cd92
2 changed files with 6 additions and 2 deletions
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3
hash/supracan.xml
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@ -238,9 +238,10 @@ Should use unemulated [video] interlace (verify on HW)
<description>Rebel Star ~ Pàn Xīng</description>
<year>1996</year>
<publisher>Horng Shen Information Co., Ltd</publisher>
<notes><![CDATA[
<notes><![CDATA[
[video] ROZ layer is concealed on intro.
[video] ROZ layer should blend hex grids, draws solid squares.
[video] select attack screens should blend as well (uses sprites)
]]></notes>
<info name="serial" value="F012" />
<info name="alt_title" value="叛星" />

5
src/mame/funtech/supracan.cpp
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@ -735,6 +735,9 @@ void supracan_state::draw_sprite_tile_masked(bitmap_ind16 &dst, bitmap_ind8 &mas
const uint32_t srcdata = *srcp;
if (srcdata != 0 && *maskp != 0)
{
// TODO: this is really color mix
// rebelst select attack screens draws with this path with no "*maskp" set,
// and expect *dstp to add up not just set.
*dstp = (uint16_t)(srcdata + color);
*priop = (*priop & 0xf0) | (uint8_t)prio;
}
@ -1017,7 +1020,7 @@ uint32_t supracan_state::screen_update(screen_device &screen, bitmap_ind16 &bitm
// - boomzoo (title) wants 0x00
// - sangofgt (1st fighter stage) wants 0x00
// - sonevil (intro) wants 0x00
// TODO: layer overlay happens from mixing registers (A'Can BIOS sets 0x02 there)
// - back layer overlay happens from mixing registers (A'Can BIOS sets 0x02 there)
bitmap.fill(0x00, cliprect);
draw_sprites(m_sprite_final_bitmap, m_sprite_mask_bitmap, m_prio_bitmap, cliprect);