commit 9bc1a783bf17a7f85c39ba9e37da0893b1a6fa2d
author Jeykumar Sankaran <jeykumar@quicinc.com> Mon Dec 14 18:36:27 2015 -0800
committer Gerrit - the friendly Code Review server <code-review@localhost> Thu Jun 30 12:05:38 2016 -0700
tree 42340d03a38d49b4f150ec2dc45355f59955ab29
parent 13f964b7b88c1fdbbea6c405ac3b415425d03085

libgralloc: Enable UBWC output buffers for Writeback displays

While allocating output buffers for writeback display, check MDP
support for writeback UBWC format before assigning the format.

Change-Id: I97bb320ec89d60453c4c7e3dc5a2b5c2a18394dd

libgralloc/gpu.cpp

diff --git a/libgralloc/gpu.cpp b/libgralloc/gpu.cpp
index c1d7788..c62cec0 100644
--- a/libgralloc/gpu.cpp
+++ b/libgralloc/gpu.cpp
@@ -267,9 +267,13 @@
        format == HAL_PIXEL_FORMAT_YCbCr_420_888) {
         if (usage & GRALLOC_USAGE_PRIVATE_ALLOC_UBWC)
             grallocFormat = HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC;
-        else if(usage & GRALLOC_USAGE_HW_VIDEO_ENCODER)
-            grallocFormat = HAL_PIXEL_FORMAT_NV12_ENCODEABLE; //NV12
-        else if((usage & GRALLOC_USAGE_HW_CAMERA_MASK)
+        else if(usage & GRALLOC_USAGE_HW_VIDEO_ENCODER) {
+            if(MDPCapabilityInfo::getInstance().isWBUBWCSupportedByMDP() &&
+               usage & GRALLOC_USAGE_HW_COMPOSER)
+              grallocFormat = HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS_UBWC;
+            else
+              grallocFormat = HAL_PIXEL_FORMAT_NV12_ENCODEABLE; //NV12
+        } else if((usage & GRALLOC_USAGE_HW_CAMERA_MASK)
                 == GRALLOC_USAGE_HW_CAMERA_ZSL)
             grallocFormat = HAL_PIXEL_FORMAT_NV21_ZSL; //NV21 ZSL
         else if(usage & GRALLOC_USAGE_HW_CAMERA_READ)