commit 495f09f38f4fffa92e9d5d4b988b557a43895d86
author Ramakant Singh <ramaka@codeaurora.org> Mon Apr 13 20:06:41 2015 +0530
committer Ramakant Singh <ramaka@codeaurora.org> Mon Apr 13 23:59:03 2015 +0530
tree 0b2266c7d2f7a5944fa97e179e8de7e96e52b88d
parent 3c5a16f718f4ad23909e23117a9ce9217530e965

hwc: mark layer as foreground for no blending

Some apps are giving layer(s) as constant blending along
with alpha, which result in wrong blending at driver end.
Marking such layer(s) as foreground layer, so that proper
blending can apply.

Change-Id: Ifc4772162c37314699a2a5d6523821c733f22fb3

libhwcomposer/hwc_copybit.cpp

diff --git a/libhwcomposer/hwc_copybit.cpp b/libhwcomposer/hwc_copybit.cpp
index d4bcc88..195542c 100644
--- a/libhwcomposer/hwc_copybit.cpp
+++ b/libhwcomposer/hwc_copybit.cpp
@@ -1046,7 +1046,8 @@
     copybit->set_parameter(copybit, COPYBIT_DITHER,
                              (dst.format == HAL_PIXEL_FORMAT_RGB_565)?
                                              COPYBIT_ENABLE : COPYBIT_DISABLE);
-    copybit->set_parameter(copybit, COPYBIT_FG_LAYER, isFG ?
+    copybit->set_parameter(copybit, COPYBIT_FG_LAYER,
+                           (layer->blending == HWC_BLENDING_NONE || isFG ) ?
                                              COPYBIT_ENABLE : COPYBIT_DISABLE);
 
     copybit->set_parameter(copybit, COPYBIT_BLIT_TO_FRAMEBUFFER,