commit c3198ff918cfde8b065fc97ca7edb874d2489adb
author radhakrishna <radhakrishna@codeaurora.org> Tue Mar 10 17:10:02 2015 +0530
committer radhakrishna <radhakrishna@codeaurora.org> Thu Mar 19 15:27:03 2015 +0530
tree c47465a38cc592d43119005d0b4a75f724c94b13
parent 361b88f0c31d90b1966bc7371c2aee3e089185cb

hwc: Support for reading FB format from driver

- Instead of assuming the default format(RGBA_8888),
  read FB format from driver and pass the info to SF
- For now, this is limited to primary and HDMI only.
  WB FBformat is assumed to be in RGBA_8888
- If FB doesn't have alpha channel, disable mixed mode

Change-Id: Iefc0080819749b541483ea47357bb37ec150c544

libhwcomposer/hwc_fbupdate.cpp

diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index ef83008..3ac04a8 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -56,7 +56,7 @@
         yres = ctx->dpyAttr[mDpy].yres_new;
     }
     getBufferAttributes((int)xres, (int)yres,
-            HAL_PIXEL_FORMAT_RGBA_8888,
+            ctx->dpyAttr[mDpy].fbformat,
             0,
             mAlignedFBWidth,
             mAlignedFBHeight,
@@ -136,7 +136,7 @@
         int flags = mTileEnabled ?
             private_handle_t::PRIV_FLAGS_TILE_RENDERED : 0;
         ovutils::Whf info(mAlignedFBWidth, mAlignedFBHeight,
-                ovutils::getMdpFormat(HAL_PIXEL_FORMAT_RGBA_8888, flags));
+                ovutils::getMdpFormat(ctx->dpyAttr[mDpy].fbformat, flags));
 
         Overlay::PipeSpecs pipeSpecs;
         pipeSpecs.formatClass = Overlay::FORMAT_RGB;