commit 2686788a4bb3e18c2aafcf6894091164c47ce6e6
author Naseer Ahmed <naseer@codeaurora.org> Wed Aug 21 15:16:24 2013 -0400
committer Naseer Ahmed <naseer@codeaurora.org> Wed Aug 21 19:31:34 2013 -0400
tree 98b8ad14c3c2b22b1c05de7010a277e99652806e
parent e36a9c2f1aa602859cc9c2f941a321c04e75e4ea

gralloc: Fix caching for rarely read/write flags

GRALLOC_USAGE_SW_WRITE_RARELY and GRALLOC_USAGE_SW_READ_RARELY
need to be compared directly since they share bits with
GRALLOC_USAGE_SW_WRITE_OFTEN and GRALLOC_USAGE_SW_READ_OFTEN.

Change-Id: I52692027033e1036e3ad960b9e03dd8ee60b4111

libgralloc/alloc_controller.cpp

diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index 0ae3eb4..9a46548 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -75,9 +75,10 @@
 
 static bool useUncached(int usage)
 {
-    if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED ||
-        usage & GRALLOC_USAGE_SW_WRITE_RARELY  ||
-        usage & GRALLOC_USAGE_SW_READ_RARELY)
+    if (usage & GRALLOC_USAGE_PRIVATE_UNCACHED)
+        return true;
+    if(((usage & GRALLOC_USAGE_SW_WRITE_MASK) == GRALLOC_USAGE_SW_WRITE_RARELY)
+       ||((usage & GRALLOC_USAGE_SW_READ_MASK) == GRALLOC_USAGE_SW_READ_RARELY))
         return true;
     return false;
 }