commit 288f8c7e25b1bda2bc4864ecc8e0fe02107fc4fa
author Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Tue Jan 15 11:37:54 2013 -0800
committer Ramkumar Radhakrishnan <ramkumar@codeaurora.org> Fri Jan 18 12:07:49 2013 -0800
tree 69e35768e93c4ce90b86e7a855a491938adefc8c
parent 57fbcfe05a951f3a09b181035d588daa1001e9d4

liboverlay: Rotator-assisted MDP downscaling of videos.

Engage the rotator to assist MDP in performing video downscale for
primary and external. This saves bandwidth and avoids causing the
driver to make too many panel mode switches between BLT (writeback)
and non-BLT (direct) modes.

Change-Id: Icfabc2c0f978a23cf96c78a9976cf69cea697b5f
CRs-Fixed: 434852

libhwcomposer/hwc_fbupdate.cpp

diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index ecbf813..e0331ad 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -89,7 +89,7 @@
                 info,
                 ovutils::ZORDER_0,
                 ovutils::IS_FG_SET,
-                ovutils::ROT_FLAG_DISABLED);
+                ovutils::ROT_FLAGS_NONE);
         ov.setSource(parg, dest);
 
         hwc_rect_t sourceCrop = layer->sourceCrop;
@@ -193,7 +193,7 @@
                 info,
                 ovutils::ZORDER_0,
                 ovutils::IS_FG_SET,
-                ovutils::ROT_FLAG_DISABLED);
+                ovutils::ROT_FLAGS_NONE);
         ov.setSource(pargL, destL);
 
         ovutils::eMdpFlags mdpFlagsR = mdpFlagsL;
@@ -202,7 +202,7 @@
                 info,
                 ovutils::ZORDER_0,
                 ovutils::IS_FG_SET,
-                ovutils::ROT_FLAG_DISABLED);
+                ovutils::ROT_FLAGS_NONE);
         ov.setSource(pargR, destR);
 
         hwc_rect_t sourceCrop = layer->sourceCrop;

libhwcomposer/hwc_mdpcomp.cpp

diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index 2e58b93..bbea007 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -20,6 +20,7 @@
 #include <sys/ioctl.h>
 #include "external.h"
 #include "qdMetaData.h"
+#include "mdp_version.h"
 
 namespace qhwc {
 
@@ -325,11 +326,17 @@
         orient = static_cast<ovutils::eTransform>(layer->transform);
     }
 
+    ovutils::eRotFlags rotFlags = ovutils::ROT_FLAGS_NONE;
+    if(isYuvBuffer(hnd) && (ctx->mMDP.version >= qdutils::MDP_V4_2 &&
+                           ctx->mMDP.version < qdutils::MDSS_V5)) {
+        rotFlags = ovutils::ROT_DOWNSCALE_ENABLED;
+    }
+
     ovutils::PipeArgs parg(mdpFlags,
             info,
             zOrder,
             ovutils::IS_FG_OFF,
-            ovutils::ROT_FLAG_DISABLED);
+            rotFlags);
 
     ov.setSource(parg, dest);
 

libhwcomposer/hwc_video.cpp

diff --git a/libhwcomposer/hwc_video.cpp b/libhwcomposer/hwc_video.cpp
index 13f3cdd..41d4365 100644
--- a/libhwcomposer/hwc_video.cpp
+++ b/libhwcomposer/hwc_video.cpp
@@ -20,6 +20,7 @@
 #include "hwc_video.h"
 #include "hwc_utils.h"
 #include "qdMetaData.h"
+#include "mdp_version.h"
 
 namespace qhwc {
 
@@ -119,11 +120,17 @@
         isFgFlag = ovutils::IS_FG_SET;
     }
 
+    ovutils::eRotFlags rotFlags = ovutils::ROT_FLAGS_NONE;
+    if(ctx->mMDP.version >= qdutils::MDP_V4_2 &&
+                ctx->mMDP.version < qdutils::MDSS_V5) {
+        rotFlags = ovutils::ROT_DOWNSCALE_ENABLED;
+    }
+
     ovutils::PipeArgs parg(mdpFlags,
             info,
             ovutils::ZORDER_1,
             isFgFlag,
-            ovutils::ROT_FLAG_DISABLED);
+            rotFlags);
 
     ov.setSource(parg, dest);