sna: Optimise call to composite with single box

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 6 insertions, 3 deletions

diff --git a/src/sna/sna_composite.c b/src/sna/sna_composite.c
index 4111b8d1..15876f52 100644
--- a/src/sna/sna_composite.c
+++ b/src/sna/sna_composite.c
@@ -495,9 +495,12 @@ sna_composite(CARD8 op,
 		goto fallback;
 	}
 
-	tmp.boxes(sna, &tmp,
-		  REGION_RECTS(&region),
-		  REGION_NUM_RECTS(&region));
+	if (region.data == NULL)
+		tmp.box(sna, &tmp, &region.extents);
+	else
+		tmp.boxes(sna, &tmp,
+			  REGION_BOXPTR(&region),
+			  REGION_NUM_RECTS(&region));
 	apply_damage(&tmp, &region);
 	tmp.done(sna, &tmp);