1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "JetPlayer-C"
19
20#include <utils/Log.h>
21#include <media/JetPlayer.h>
22
23
24namespace android
25{
26
27static const int MIX_NUM_BUFFERS = 4;
28static const S_EAS_LIB_CONFIG* pLibConfig = NULL;
29
30//-------------------------------------------------------------------------------------------------
31JetPlayer::JetPlayer(void *javaJetPlayer, int maxTracks, int trackBufferSize) :
32        mEventCallback(NULL),
33        mJavaJetPlayerRef(javaJetPlayer),
34        mTid(-1),
35        mRender(false),
36        mPaused(false),
37        mMaxTracks(maxTracks),
38        mEasData(NULL),
39        mTrackBufferSize(trackBufferSize)
40{
41    ALOGV("JetPlayer constructor");
42    mPreviousJetStatus.currentUserID = -1;
43    mPreviousJetStatus.segmentRepeatCount = -1;
44    mPreviousJetStatus.numQueuedSegments = -1;
45    mPreviousJetStatus.paused = true;
46}
47
48//-------------------------------------------------------------------------------------------------
49JetPlayer::~JetPlayer()
50{
51    ALOGV("~JetPlayer");
52    release();
53
54}
55
56//-------------------------------------------------------------------------------------------------
57int JetPlayer::init()
58{
59    //Mutex::Autolock lock(&mMutex);
60
61    EAS_RESULT result;
62
63    // retrieve the EAS library settings
64    if (pLibConfig == NULL)
65        pLibConfig = EAS_Config();
66    if (pLibConfig == NULL) {
67        ALOGE("JetPlayer::init(): EAS library configuration could not be retrieved, aborting.");
68        return EAS_FAILURE;
69    }
70
71    // init the EAS library
72    result = EAS_Init(&mEasData);
73    if (result != EAS_SUCCESS) {
74        ALOGE("JetPlayer::init(): Error initializing Sonivox EAS library, aborting.");
75        mState = EAS_STATE_ERROR;
76        return result;
77    }
78    // init the JET library with the default app event controller range
79    result = JET_Init(mEasData, NULL, sizeof(S_JET_CONFIG));
80    if (result != EAS_SUCCESS) {
81        ALOGE("JetPlayer::init(): Error initializing JET library, aborting.");
82        mState = EAS_STATE_ERROR;
83        return result;
84    }
85
86    // create the output AudioTrack
87    mAudioTrack = new AudioTrack();
88    status_t status = mAudioTrack->set(AUDIO_STREAM_MUSIC,  //TODO parameterize this
89            pLibConfig->sampleRate,
90            AUDIO_FORMAT_PCM_16_BIT,
91            audio_channel_out_mask_from_count(pLibConfig->numChannels),
92            (size_t) mTrackBufferSize,
93            AUDIO_OUTPUT_FLAG_NONE);
94    if (status != OK) {
95        ALOGE("JetPlayer::init(): Error initializing JET library; AudioTrack error %d", status);
96        mAudioTrack.clear();
97        mState = EAS_STATE_ERROR;
98        return EAS_FAILURE;
99    }
100
101    // create render and playback thread
102    {
103        Mutex::Autolock l(mMutex);
104        ALOGV("JetPlayer::init(): trying to start render thread");
105        mThread = new JetPlayerThread(this);
106        mThread->run("jetRenderThread", ANDROID_PRIORITY_AUDIO);
107        mCondition.wait(mMutex);
108    }
109    if (mTid > 0) {
110        // render thread started, we're ready
111        ALOGV("JetPlayer::init(): render thread(%d) successfully started.", mTid);
112        mState = EAS_STATE_READY;
113    } else {
114        ALOGE("JetPlayer::init(): failed to start render thread.");
115        mState = EAS_STATE_ERROR;
116        return EAS_FAILURE;
117    }
118
119    return EAS_SUCCESS;
120}
121
122void JetPlayer::setEventCallback(jetevent_callback eventCallback)
123{
124    Mutex::Autolock l(mMutex);
125    mEventCallback = eventCallback;
126}
127
128//-------------------------------------------------------------------------------------------------
129int JetPlayer::release()
130{
131    ALOGV("JetPlayer::release()");
132    Mutex::Autolock lock(mMutex);
133    mPaused = true;
134    mRender = false;
135    if (mEasData) {
136        JET_Pause(mEasData);
137        JET_CloseFile(mEasData);
138        JET_Shutdown(mEasData);
139        EAS_Shutdown(mEasData);
140    }
141    mIoWrapper.clear();
142    if (mAudioTrack != 0) {
143        mAudioTrack->stop();
144        mAudioTrack->flush();
145        mAudioTrack.clear();
146    }
147    if (mAudioBuffer) {
148        delete mAudioBuffer;
149        mAudioBuffer = NULL;
150    }
151    mEasData = NULL;
152
153    return EAS_SUCCESS;
154}
155
156
157//-------------------------------------------------------------------------------------------------
158int JetPlayer::render() {
159    EAS_RESULT result = EAS_FAILURE;
160    EAS_I32 count;
161    int temp;
162    bool audioStarted = false;
163
164    ALOGV("JetPlayer::render(): entering");
165
166    // allocate render buffer
167    mAudioBuffer =
168        new EAS_PCM[pLibConfig->mixBufferSize * pLibConfig->numChannels * MIX_NUM_BUFFERS];
169
170    // signal main thread that we started
171    {
172        Mutex::Autolock l(mMutex);
173        mTid = gettid();
174        ALOGV("JetPlayer::render(): render thread(%d) signal", mTid);
175        mCondition.signal();
176    }
177
178    while (1) {
179
180        mMutex.lock(); // [[[[[[[[ LOCK ---------------------------------------
181
182        if (mEasData == NULL) {
183            mMutex.unlock();
184            ALOGV("JetPlayer::render(): NULL EAS data, exiting render.");
185            goto threadExit;
186        }
187
188        // nothing to render, wait for client thread to wake us up
189        while (!mRender)
190        {
191            ALOGV("JetPlayer::render(): signal wait");
192            if (audioStarted) {
193                mAudioTrack->pause();
194                // we have to restart the playback once we start rendering again
195                audioStarted = false;
196            }
197            mCondition.wait(mMutex);
198            ALOGV("JetPlayer::render(): signal rx'd");
199        }
200
201        // render midi data into the input buffer
202        int num_output = 0;
203        EAS_PCM* p = mAudioBuffer;
204        for (int i = 0; i < MIX_NUM_BUFFERS; i++) {
205            result = EAS_Render(mEasData, p, pLibConfig->mixBufferSize, &count);
206            if (result != EAS_SUCCESS) {
207                ALOGE("JetPlayer::render(): EAS_Render returned error %ld", result);
208            }
209            p += count * pLibConfig->numChannels;
210            num_output += count * pLibConfig->numChannels * sizeof(EAS_PCM);
211
212            // send events that were generated (if any) to the event callback
213            fireEventsFromJetQueue();
214        }
215
216        // update playback state
217        //ALOGV("JetPlayer::render(): updating state");
218        JET_Status(mEasData, &mJetStatus);
219        fireUpdateOnStatusChange();
220        mPaused = mJetStatus.paused;
221
222        mMutex.unlock(); // UNLOCK ]]]]]]]] -----------------------------------
223
224        // check audio output track
225        if (mAudioTrack == NULL) {
226            ALOGE("JetPlayer::render(): output AudioTrack was not created");
227            goto threadExit;
228        }
229
230        // Write data to the audio hardware
231        //ALOGV("JetPlayer::render(): writing to audio output");
232        if ((temp = mAudioTrack->write(mAudioBuffer, num_output)) < 0) {
233            ALOGE("JetPlayer::render(): Error in writing:%d",temp);
234            return temp;
235        }
236
237        // start audio output if necessary
238        if (!audioStarted) {
239            ALOGV("JetPlayer::render(): starting audio playback");
240            mAudioTrack->start();
241            audioStarted = true;
242        }
243
244    }//while (1)
245
246threadExit:
247    if (mAudioTrack != NULL) {
248        mAudioTrack->stop();
249        mAudioTrack->flush();
250    }
251    delete [] mAudioBuffer;
252    mAudioBuffer = NULL;
253    mMutex.lock();
254    mTid = -1;
255    mCondition.signal();
256    mMutex.unlock();
257    return result;
258}
259
260
261//-------------------------------------------------------------------------------------------------
262// fire up an update if any of the status fields has changed
263// precondition: mMutex locked
264void JetPlayer::fireUpdateOnStatusChange()
265{
266    if ( (mJetStatus.currentUserID      != mPreviousJetStatus.currentUserID)
267       ||(mJetStatus.segmentRepeatCount != mPreviousJetStatus.segmentRepeatCount) ) {
268        if (mEventCallback)  {
269            mEventCallback(
270                JetPlayer::JET_USERID_UPDATE,
271                mJetStatus.currentUserID,
272                mJetStatus.segmentRepeatCount,
273                mJavaJetPlayerRef);
274        }
275        mPreviousJetStatus.currentUserID      = mJetStatus.currentUserID;
276        mPreviousJetStatus.segmentRepeatCount = mJetStatus.segmentRepeatCount;
277    }
278
279    if (mJetStatus.numQueuedSegments != mPreviousJetStatus.numQueuedSegments) {
280        if (mEventCallback)  {
281            mEventCallback(
282                JetPlayer::JET_NUMQUEUEDSEGMENT_UPDATE,
283                mJetStatus.numQueuedSegments,
284                -1,
285                mJavaJetPlayerRef);
286        }
287        mPreviousJetStatus.numQueuedSegments  = mJetStatus.numQueuedSegments;
288    }
289
290    if (mJetStatus.paused != mPreviousJetStatus.paused) {
291        if (mEventCallback)  {
292            mEventCallback(JetPlayer::JET_PAUSE_UPDATE,
293                mJetStatus.paused,
294                -1,
295                mJavaJetPlayerRef);
296        }
297        mPreviousJetStatus.paused = mJetStatus.paused;
298    }
299
300}
301
302
303//-------------------------------------------------------------------------------------------------
304// fire up all the JET events in the JET engine queue (until the queue is empty)
305// precondition: mMutex locked
306void JetPlayer::fireEventsFromJetQueue()
307{
308    if (!mEventCallback) {
309        // no callback, just empty the event queue
310        while (JET_GetEvent(mEasData, NULL, NULL)) { }
311        return;
312    }
313
314    EAS_U32 rawEvent;
315    while (JET_GetEvent(mEasData, &rawEvent, NULL)) {
316        mEventCallback(
317            JetPlayer::JET_EVENT,
318            rawEvent,
319            -1,
320            mJavaJetPlayerRef);
321    }
322}
323
324
325//-------------------------------------------------------------------------------------------------
326int JetPlayer::loadFromFile(const char* path)
327{
328    ALOGV("JetPlayer::loadFromFile(): path=%s", path);
329
330    Mutex::Autolock lock(mMutex);
331
332    mIoWrapper = new MidiIoWrapper(path);
333
334    EAS_RESULT result = JET_OpenFile(mEasData, mIoWrapper->getLocator());
335    if (result != EAS_SUCCESS)
336        mState = EAS_STATE_ERROR;
337    else
338        mState = EAS_STATE_OPEN;
339    return( result );
340}
341
342
343//-------------------------------------------------------------------------------------------------
344int JetPlayer::loadFromFD(const int fd, const long long offset, const long long length)
345{
346    ALOGV("JetPlayer::loadFromFD(): fd=%d offset=%lld length=%lld", fd, offset, length);
347
348    Mutex::Autolock lock(mMutex);
349
350    mIoWrapper = new MidiIoWrapper(fd, offset, length);
351
352    EAS_RESULT result = JET_OpenFile(mEasData, mIoWrapper->getLocator());
353    if (result != EAS_SUCCESS)
354        mState = EAS_STATE_ERROR;
355    else
356        mState = EAS_STATE_OPEN;
357    return( result );
358}
359
360
361//-------------------------------------------------------------------------------------------------
362int JetPlayer::closeFile()
363{
364    Mutex::Autolock lock(mMutex);
365    return JET_CloseFile(mEasData);
366}
367
368
369//-------------------------------------------------------------------------------------------------
370int JetPlayer::play()
371{
372    ALOGV("JetPlayer::play(): entering");
373    Mutex::Autolock lock(mMutex);
374
375    EAS_RESULT result = JET_Play(mEasData);
376
377    mPaused = false;
378    mRender = true;
379
380    JET_Status(mEasData, &mJetStatus);
381    this->dumpJetStatus(&mJetStatus);
382
383    fireUpdateOnStatusChange();
384
385    // wake up render thread
386    ALOGV("JetPlayer::play(): wakeup render thread");
387    mCondition.signal();
388
389    return result;
390}
391
392//-------------------------------------------------------------------------------------------------
393int JetPlayer::pause()
394{
395    Mutex::Autolock lock(mMutex);
396    mPaused = true;
397    EAS_RESULT result = JET_Pause(mEasData);
398
399    mRender = false;
400
401    JET_Status(mEasData, &mJetStatus);
402    this->dumpJetStatus(&mJetStatus);
403    fireUpdateOnStatusChange();
404
405
406    return result;
407}
408
409
410//-------------------------------------------------------------------------------------------------
411int JetPlayer::queueSegment(int segmentNum, int libNum, int repeatCount, int transpose,
412        EAS_U32 muteFlags, EAS_U8 userID)
413{
414    ALOGV("JetPlayer::queueSegment segmentNum=%d, libNum=%d, repeatCount=%d, transpose=%d",
415        segmentNum, libNum, repeatCount, transpose);
416    Mutex::Autolock lock(mMutex);
417    return JET_QueueSegment(mEasData, segmentNum, libNum, repeatCount, transpose, muteFlags,
418            userID);
419}
420
421//-------------------------------------------------------------------------------------------------
422int JetPlayer::setMuteFlags(EAS_U32 muteFlags, bool sync)
423{
424    Mutex::Autolock lock(mMutex);
425    return JET_SetMuteFlags(mEasData, muteFlags, sync);
426}
427
428//-------------------------------------------------------------------------------------------------
429int JetPlayer::setMuteFlag(int trackNum, bool muteFlag, bool sync)
430{
431    Mutex::Autolock lock(mMutex);
432    return JET_SetMuteFlag(mEasData, trackNum, muteFlag, sync);
433}
434
435//-------------------------------------------------------------------------------------------------
436int JetPlayer::triggerClip(int clipId)
437{
438    ALOGV("JetPlayer::triggerClip clipId=%d", clipId);
439    Mutex::Autolock lock(mMutex);
440    return JET_TriggerClip(mEasData, clipId);
441}
442
443//-------------------------------------------------------------------------------------------------
444int JetPlayer::clearQueue()
445{
446    ALOGV("JetPlayer::clearQueue");
447    Mutex::Autolock lock(mMutex);
448    return JET_Clear_Queue(mEasData);
449}
450
451//-------------------------------------------------------------------------------------------------
452void JetPlayer::dump()
453{
454}
455
456void JetPlayer::dumpJetStatus(S_JET_STATUS* pJetStatus)
457{
458    if (pJetStatus!=NULL)
459        ALOGV(">> current JET player status: userID=%d segmentRepeatCount=%d numQueuedSegments=%d "
460                "paused=%d",
461                pJetStatus->currentUserID, pJetStatus->segmentRepeatCount,
462                pJetStatus->numQueuedSegments, pJetStatus->paused);
463    else
464        ALOGE(">> JET player status is NULL");
465}
466
467
468} // end namespace android
469