overlay: Request specific pipe type

Request driver for a specific pipe type instead of
notifying the type request using mdp flags.

Change-Id: I83fffc7c0e1f24d903b7dd6d52a58b87c70f3d4f
diff --git a/liboverlay/overlay.cpp b/liboverlay/overlay.cpp
index fe7bd2c..de880c6 100644
--- a/liboverlay/overlay.cpp
+++ b/liboverlay/overlay.cpp
@@ -346,20 +346,8 @@
         utils::eDest dest) {
     validate((int)dest);
 
-    PipeArgs newArgs(args);
-    if(PipeBook::getPipeType(dest) == OV_MDP_PIPE_VG) {
-        setMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_SHARE);
-    } else {
-        clearMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_SHARE);
-    }
-
-    if(PipeBook::getPipeType(dest) == OV_MDP_PIPE_DMA) {
-        setMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_FORCE_DMA);
-    } else {
-        clearMdpFlags(newArgs.mdpFlags, OV_MDP_PIPE_FORCE_DMA);
-    }
-
-    mPipeBook[dest].mPipe->setSource(newArgs);
+    setPipeType(dest, PipeBook::getPipeType(dest));
+    mPipeBook[dest].mPipe->setSource(args);
 }
 
 void Overlay::setVisualParams(const MetaData_t& metadata, utils::eDest dest) {
@@ -367,6 +355,11 @@
     mPipeBook[dest].mPipe->setVisualParams(metadata);
 }
 
+void Overlay::setPipeType(utils::eDest pipeIndex,
+        const utils::eMdpPipeType pType) {
+    mPipeBook[pipeIndex].mPipe->setPipeType(pType);
+}
+
 Overlay* Overlay::getInstance() {
     if(sInstance == NULL) {
         sInstance = new Overlay();