From: Søren Sandmann Pedersen <sandmann@redhat.com>
Date: Fri, 26 Jun 2009 22:58:23 +0000 (-0400)
Subject: Change checks for srca == 0 to src == 0
X-Git-Tag: 1.0_branch~926
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e8addcc69a36375d1330749e00854d9651c8f8d0;p=profile%2Fivi%2Fpixman.git

Change checks for srca == 0 to src == 0

It is not generally correct to bail out just because the source alpha
is 0. The color channels still mig not be and in that case the correct
result is:

       s + (1 - srca) * d = s + d

which is not generally 0.
---

diff --git a/pixman/pixman-arm-neon.c b/pixman/pixman-arm-neon.c
index b4f9a27..b88ede8 100644
--- a/pixman/pixman-arm-neon.c
+++ b/pixman/pixman-arm-neon.c
@@ -1736,7 +1736,7 @@ fbCompositeSolidMask_nx8x0565neon (
 
 	// bail out if fully transparent or degenerate
 	srca = src >> 24;
-	if(srca == 0)
+	if(src == 0)
 		return;
 	if(width == 0 || height == 0)
 		return;
@@ -1877,7 +1877,7 @@ fbCompositeSolid_nx0565neon (
 
 	// bail out if fully transparent
 	srca = src >> 24;
-	if(srca == 0)
+	if(src == 0)
 		return;
 	if(width == 0 || height == 0)
 		return;