diff options
| -rw-r--r-- | hw/display/sm501.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/display/sm501.c b/hw/display/sm501.c index 5d2e019575..ad5a62bfab 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -788,6 +788,11 @@ static void sm501_2d_operation(SM501State *s) (rop2_source_is_pattern ? " with pattern source" : "")); } + /* Ignore no-op blits, some guests seem to do this */ + if (src_base == dst_base && src_pitch == dst_pitch && + src_x == dst_x && src_y == dst_y) { + break; + } /* Check for overlaps, this could be made more exact */ uint32_t sb, se, db, de; sb = src_base + src_x + src_y * (width + src_pitch); |