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ygv608.cpp: Add scrolling-by-row (used in NCV1 Xevious Arrangement)

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This commit is contained in:
Agiri 2017-10-28 12:15:41 +09:00
parent 6e0c1465b1
commit a1a767de1f
1 changed files with 43 additions and 9 deletions
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38
src/mame/video/ygv608.cpp
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@ -1005,6 +1005,9 @@ uint32_t ygv608_device::update_screen(screen_device &screen, bitmap_ind16 &bitma
#endif
#ifdef _ENABLE_SCROLLY
int col;
#endif
#ifdef _ENABLE_SCROLLX
int row;
#endif
rectangle finalclip;
const rectangle &visarea = screen.visible_area();
@ -1048,8 +1051,15 @@ uint32_t ygv608_device::update_screen(screen_device &screen, bitmap_ind16 &bitma
m_tilemap_A->mark_all_dirty();
m_tilemap_A->set_transparent_pen(0);
// for NCV1 it's sufficient to scroll only columns
if (m_h_div_size == 0) {
m_tilemap_A->set_scroll_cols(m_page_x);
m_tilemap_A->set_scroll_rows(1);
}
else {
m_tilemap_A->set_scroll_cols(1);
m_tilemap_A->set_scroll_rows(m_page_y);
}
if (m_pattern_size == PTS_8X8 )
m_tilemap_B = m_tilemap_B_cache_8[index];
@ -1057,8 +1067,14 @@ uint32_t ygv608_device::update_screen(screen_device &screen, bitmap_ind16 &bitma
m_tilemap_B = m_tilemap_B_cache_16[index];
m_tilemap_B->mark_all_dirty();
// for NCV1 it's sufficient to scroll only columns
if (m_h_div_size == 0) {
m_tilemap_B->set_scroll_cols(m_page_x);
m_tilemap_B->set_scroll_rows(1);
}
else {
m_tilemap_B->set_scroll_cols(1);
m_tilemap_B->set_scroll_rows(m_page_y);
}
// now clear the screen in case we change to 1-plane mode
m_work_bitmap.fill(0, finalclip );
@ -1086,6 +1102,8 @@ uint32_t ygv608_device::update_screen(screen_device &screen, bitmap_ind16 &bitma
#ifdef _ENABLE_SCROLLX
if (m_h_div_size == 0) {
m_tilemap_B->set_scrollx(0,
( (int)m_scroll_data_table[1][0x80] +
( (int)m_scroll_data_table[1][0x81] << 8 ) ) );
@ -1094,6 +1112,22 @@ uint32_t ygv608_device::update_screen(screen_device &screen, bitmap_ind16 &bitma
( (int)m_scroll_data_table[0][0x80] +
( (int)m_scroll_data_table[0][0x81] << 8 ) ) );
}
else {
for( row=0; row<m_page_y; row++ )
{
m_tilemap_B->set_scrollx(row,
( (int)m_scroll_data_table[1][0x80 + ((row & (m_page_y/2 - 1)) << 1)] +
( (int)m_scroll_data_table[1][0x81 + ((row & (m_page_y/2 - 1)) << 1)] << 8 ) ) );
m_tilemap_A->set_scrollx(row,
( (int)m_scroll_data_table[0][0x80 + ((row & (m_page_y/2 - 1)) << 1)] +
( (int)m_scroll_data_table[0][0x81 + ((row & (m_page_y/2 - 1)) << 1)] << 8 ) ) );
}
}
#endif
m_tilemap_A->enable(m_dspe == true);