IAudioFlinger::openRecord returns IMemory(s)

openRecord() now explicitly returns the control block and data buffer
as separate IMemory references.  If the IMemory for data buffer
is 0, this means it immediately follows the control block.

Change-Id: Ic098f88f0e037f8fbe30006689e18cacacf09d06

1 files changed, 5 insertions, 1 deletions

diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 58705c4..06023fd 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -48,7 +48,8 @@ public:
                                 const sp<IMemory>& sharedBuffer,
                                 int sessionId,
                                 int uid,
-                                bool isOut);
+                                bool isOut,
+                                bool useReadOnlyHeap = false);
     virtual             ~TrackBase();
     virtual status_t    initCheck() const { return getCblk() != 0 ? NO_ERROR : NO_MEMORY; }
 
@@ -61,6 +62,8 @@ public:
             int         uid() const { return mUid; }
     virtual status_t    setSyncEvent(const sp<SyncEvent>& event);
 
+            sp<IMemory> getBuffers() const { return mBufferMemory; }
+
 protected:
                         TrackBase(const TrackBase&);
                         TrackBase& operator = (const TrackBase&);
@@ -112,6 +115,7 @@ protected:
     /*const*/ sp<Client> mClient;   // see explanation at ~TrackBase() why not const
     sp<IMemory>         mCblkMemory;
     audio_track_cblk_t* mCblk;
+    sp<IMemory>         mBufferMemory;  // currently non-0 for fast RecordTrack only
     void*               mBuffer;    // start of track buffer, typically in shared memory
                                     // except for OutputTrack when it is in local memory
     // we don't really need a lock for these