commit 4efbdd6a0b77a6e3bb9b3dfaa3c5d73c75c92e4b
author radhakrishna <radhakrishna@codeaurora.org> Mon Nov 03 13:19:27 2014 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Fri Nov 14 03:52:01 2014 -0800
tree a8ebd0646072b9ccb53509b68880a176707f4b29
parent 2324ea23eade7e99dc31fb30af1ef1076d1f6b3f

hwc: Check for planeAlpha along with HWC_BLENDING_NONE

Check for planeAlpha along with HWC_BLENDING_NONE as the latter
is set if the layer is Opaque irrespective of planeAlpha value.

Change-Id: Iaee7efe662189ba3a2562f79c2d109da831ac94d

libhwcomposer/hwc_mdpcomp.cpp

diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index 9872049..64ef64a 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -532,7 +532,8 @@
             }
 
             /* deduct any opaque region from visibleRect */
-            if (layer->blending == HWC_BLENDING_NONE)
+            if (layer->blending == HWC_BLENDING_NONE &&
+                    layer->planeAlpha == 0xFF)
                 visibleRect = deductRect(visibleRect, res);
         }
     }
@@ -638,7 +639,8 @@
                 return false;
             }
 
-            if (layer->blending == HWC_BLENDING_NONE) {
+            if (layer->blending == HWC_BLENDING_NONE &&
+                    layer->planeAlpha == 0xFF) {
                 visibleRectL = deductRect(visibleRectL, l_res);
                 visibleRectR = deductRect(visibleRectR, r_res);
             }

libhwcomposer/hwc_utils.cpp

diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index b091ae2..3732703 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -1382,7 +1382,8 @@
         //see if there is no blending required.
         //If it is opaque see if we can substract this region from below
         //layers.
-        if(list->hwLayers[i].blending == HWC_BLENDING_NONE) {
+        if(list->hwLayers[i].blending == HWC_BLENDING_NONE &&
+                list->hwLayers[i].planeAlpha == 0xFF) {
             int j= i-1;
             hwc_rect_t& topframe =
                 (hwc_rect_t&)list->hwLayers[i].displayFrame;