commit bab187a53e4afad63df5d10111a787945a81d63a
author Sushil Chauhan <sushilchauhan@codeaurora.org> Wed Jan 30 17:44:15 2013 -0800
committer Sushil Chauhan <sushilchauhan@codeaurora.org> Mon Apr 29 13:51:44 2013 -0700
tree 59affa05f09ea8d2b255d23a7ed7246bb17eda63
parent d092e660ad08367ac2c9fd101f54356b2ee99a7e

liboverlay: Add support for MDSS Bandwidth Compression

- This adds support for Bandwidth Compression.
- If MDSS supports BWC, then we set BWC flags
  to both Rotator(encode) and overlay(decode)

Change-Id: I6f7800716a2ce2ab855f4c0b1a53cd96f7d06d74

libhwcomposer/hwc_utils.cpp

diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index 8fdaf06..d8f8c70 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -628,6 +628,12 @@
         if(transform & HWC_TRANSFORM_ROT_90) {
             ovutils::setMdpFlags(mdpFlags,
                     ovutils::OV_MDP_SOURCE_ROTATED_90);
+            // enable bandwidth compression only if src width < 2048
+            if(qdutils::MDPVersion::getInstance().supportsBWC() &&
+                hnd->width < qdutils::MAX_DISPLAY_DIM) {
+                ovutils::setMdpFlags(mdpFlags,
+                                 ovutils::OV_MDSS_MDP_BWC_EN);
+            }
         }
     }