text: /*
   * Copyright (C) 2008 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 JETPLAYER_H_
  #define JETPLAYER_H_
  
  #include <utils/threads.h>
  
  #include <libsonivox/jet.h>
  #include <libsonivox/eas_types.h>
  #include <media/AudioTrack.h>
  
  
  namespace android {
  
  typedef void (*jetevent_callback)(int eventType, int val1, int val2, void *cookie);
  
  class JetPlayer {
  
  public:
  
      // to keep in sync with the JetPlayer class constants
      // defined in frameworks/base/media/java/android/media/JetPlayer.java
      static const int JET_EVENT                   = 1;
      static const int JET_USERID_UPDATE           = 2;
      static const int JET_NUMQUEUEDSEGMENT_UPDATE = 3;
      static const int JET_PAUSE_UPDATE            = 4;
  
      JetPlayer(void *javaJetPlayer,
              int maxTracks = 32,
              int trackBufferSize = 1200);
      ~JetPlayer();
      int init();
      int release();
  
      int loadFromFile(const char* url);
      int loadFromFD(const int fd, const long long offset, const long long length);
      int closeFile();
      int play();
      int pause();
      int queueSegment(int segmentNum, int libNum, int repeatCount, int transpose,
              EAS_U32 muteFlags, EAS_U8 userID);
      int setMuteFlags(EAS_U32 muteFlags, bool sync);
      int setMuteFlag(int trackNum, bool muteFlag, bool sync);
      int triggerClip(int clipId);
      int clearQueue();
  
      void setEventCallback(jetevent_callback callback);
  
      int getMaxTracks() { return mMaxTracks; };
  
  
  private:
      int                 render();
      void                fireUpdateOnStatusChange();
      void                fireEventsFromJetQueue();
  
      JetPlayer() {} // no default constructor
      void dump();
      void dumpJetStatus(S_JET_STATUS* pJetStatus);
  
      jetevent_callback   mEventCallback;
  
      void*               mJavaJetPlayerRef;
      Mutex               mMutex; // mutex to sync the render and playback thread with the JET calls
      pid_t               mTid;
      Condition           mCondition;
      volatile bool       mRender;
      bool                mPaused;
  
      EAS_STATE           mState;
      int*                mMemFailedVar;
  
      int                 mMaxTracks; // max number of MIDI tracks, usually 32
      EAS_DATA_HANDLE     mEasData;
      EAS_FILE_LOCATOR    mEasJetFileLoc;
      EAS_PCM*            mAudioBuffer;// EAS renders the MIDI data into this buffer,
      AudioTrack*         mAudioTrack; // and we play it in this audio track
      int                 mTrackBufferSize;
      S_JET_STATUS        mJetStatus;
      S_JET_STATUS        mPreviousJetStatus;
  
      char                mJetFilePath[PATH_MAX];
  
      class JetPlayerThread : public Thread {
      public:
          JetPlayerThread(JetPlayer *player) : mPlayer(player) {
          }
  
      protected:
          virtual ~JetPlayerThread() {}
  
      private:
          JetPlayer *mPlayer;
  
          bool threadLoop() {
              int result;
              result = mPlayer->render();
              return false;
          }
  
          JetPlayerThread(const JetPlayerThread &);
          JetPlayerThread &operator=(const JetPlayerThread &);
      };
  
      sp<JetPlayerThread> mThread;
  
  }; // end class JetPlayer
  
  } // end namespace android
  
  
  
  #endif /*JETPLAYER_H_*/
  