diff options
Diffstat (limited to 'src/mame/video/namcos22.cpp')
-rw-r--r-- | src/mame/video/namcos22.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/mame/video/namcos22.cpp b/src/mame/video/namcos22.cpp index 9ae1937bb54..b0f99df0f73 100644 --- a/src/mame/video/namcos22.cpp +++ b/src/mame/video/namcos22.cpp @@ -1778,15 +1778,21 @@ TILE_GET_INFO_MEMBER(namcos22_state::get_text_tile_info) WRITE32_MEMBER(namcos22_state::namcos22_textram_w) { + uint32_t prevdata = m_textram[offset]; COMBINE_DATA(&m_textram[offset]); - m_bgtilemap->mark_tile_dirty(offset * 2); - m_bgtilemap->mark_tile_dirty(offset * 2 + 1); + if (prevdata != m_textram[offset]) + { + m_bgtilemap->mark_tile_dirty(offset * 2); + m_bgtilemap->mark_tile_dirty(offset * 2 + 1); + } } WRITE32_MEMBER(namcos22_state::namcos22_cgram_w) { + uint32_t prevdata = m_cgram[offset]; COMBINE_DATA(&m_cgram[offset]); - m_gfxdecode->gfx(0)->mark_dirty(offset/32); + if (prevdata != m_cgram[offset]) + m_gfxdecode->gfx(0)->mark_dirty(offset/32); } READ32_MEMBER(namcos22_state::namcos22_tilemapattr_r) |