sna: flatten source alphamaps

Replace the source picture+alpha with a bo that contains the RGB
channels from source and A from the alpha map.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sna/sna_composite.c b/src/sna/sna_composite.c
index fcc0070a..7adbbfb5 100644
--- a/src/sna/sna_composite.c
+++ b/src/sna/sna_composite.c
@@ -437,7 +437,7 @@ sna_composite(CARD8 op,
 		goto fallback;
 	}
 
-	if (dst->alphaMap || src->alphaMap || (mask && mask->alphaMap)) {
+	if (dst->alphaMap) {
 		DBG(("%s: fallback due to unhandled alpha-map\n", __FUNCTION__));
 		goto fallback;
 	}