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treacity: Fix scrolling regression (nw)

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This commit is contained in:
AJR 2019-10-05 00:44:27 -04:00
parent 4b414fa45b
commit 52cd97b79a
1 changed files with 3 additions and 3 deletions
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6
src/mame/drivers/subsino2.cpp
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@ -775,7 +775,7 @@ uint32_t subsino2_state::screen_update_subsino2(screen_device &screen, bitmap_in
if (mask_y[i]) if (mask_y[i])
scroll_dx = l->scrollram[y & mask_y[i]]; scroll_dx = l->scrollram[y & mask_y[i]];
l->tmap->set_scrollx(y, scroll_dx); l->tmap->set_scrollx(y, l->scroll_x + scroll_dx);
} }
} }
@ -792,7 +792,7 @@ uint32_t subsino2_state::screen_update_subsino2(screen_device &screen, bitmap_in
for (int y = 0; y < 0x20/4; y++) for (int y = 0; y < 0x20/4; y++)
{ {
for (int x = 0; x < 0x40; x++) for (int x = 0; x < 0x80; x++)
{ {
rectangle visible; rectangle visible;
visible.min_x = 8 * x; visible.min_x = 8 * x;
@ -803,7 +803,7 @@ uint32_t subsino2_state::screen_update_subsino2(screen_device &screen, bitmap_in
int reeladdr = y * 0x80 * 4 + x; int reeladdr = y * 0x80 * 4 + x;
uint16_t reelscroll = m_ss9601_reelram[reeladdr]; uint16_t reelscroll = m_ss9601_reelram[reeladdr];
l->tmap->set_scrollx(0, l->scroll_x + (reelscroll >> 9) * 8 - visible.min_x); l->tmap->set_scrollx(0, (reelscroll >> 9) * 8 - visible.min_x);
// wrap around at half tilemap (0x100) // wrap around at half tilemap (0x100)
int reelscroll_y = (reelscroll & 0x100) + ((reelscroll - visible.min_y) & 0xff); int reelscroll_y = (reelscroll & 0x100) + ((reelscroll - visible.min_y) & 0xff);