AudioFlinger files reorganization

Audioflinger.cpp and Audioflinger.h files must be split to
improve readability and maintainability.

This CL splits the files as follows:

AudioFlinger.cpp split into:
- AudioFlinger.cpp: implementation of IAudioflinger interface and global methods
- AFThreads.cpp: implementation of ThreadBase, PlaybackThread, MixerThread,
DuplicatingThread, DirectOutputThread and RecordThread.
- AFTracks.cpp: implementation of TrackBase, Track, TimedTrack, OutputTrack,
RecordTrack, TrackHandle and RecordHandle.
- AFEffects.cpp: implementation of EffectModule, EffectChain and EffectHandle.

AudioFlinger.h is modified by inline inclusion of header files containing
the declaration of complex inner classes:
- AFThreads.h: ThreadBase, PlaybackThread, MixerThread, DuplicatingThread,
DirectOutputThread and RecordThread
- AFEffects.h: EffectModule, EffectChain and EffectHandle

AFThreads.h includes the follownig headers inline:
- AFTrackBase.h: TrackBase
- AFPlaybackTracks: Track, TimedTrack, OutputTrack
- AFRecordTracks: RecordTrack

Change-Id: I512ebc3a51813ab7a4afccc9a538b18125165c4c

1 files changed, 62 insertions, 0 deletions

diff --git a/services/audioflinger/RecordTracks.h b/services/audioflinger/RecordTracks.h
new file mode 100644
index 0000000..fe681d7
--- /dev/null
+++ b/services/audioflinger/RecordTracks.h
@@ -0,0 +1,62 @@
+/*
+**
+** Copyright 2012, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef INCLUDING_FROM_AUDIOFLINGER_H
+    #error This header file should only be included from AudioFlinger.h
+#endif
+
+// record track
+class RecordTrack : public TrackBase {
+public:
+                        RecordTrack(RecordThread *thread,
+                                const sp<Client>& client,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                size_t frameCount,
+                                int sessionId);
+    virtual             ~RecordTrack();
+
+    virtual status_t    start(AudioSystem::sync_event_t event, int triggerSession);
+    virtual void        stop();
+
+            void        destroy();
+
+            // clear the buffer overflow flag
+            void        clearOverflow() { mOverflow = false; }
+            // set the buffer overflow flag and return previous value
+            bool        setOverflow() { bool tmp = mOverflow; mOverflow = true;
+                                                return tmp; }
+
+    static  void        appendDumpHeader(String8& result);
+            void        dump(char* buffer, size_t size);
+
+    virtual bool isOut() const;
+
+private:
+    friend class AudioFlinger;  // for mState
+
+                        RecordTrack(const RecordTrack&);
+                        RecordTrack& operator = (const RecordTrack&);
+
+    // AudioBufferProvider interface
+    virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer,
+                                   int64_t pts = kInvalidPTS);
+    // releaseBuffer() not overridden
+
+    bool                mOverflow;  // overflow on most recent attempt to fill client buffer
+};