src/source.cpp

   1
   2 #include "config.h"
   3
   4 #include "source.h"
   5
   6 #include <cstring>
   7
   8 #include <stdexcept>
   9 #include <sstream>
  10 #include <memory>
  11 #include <limits>
  12
  13 #include "al.h"
  14 #include "alext.h"
  15
  16 #include "context.h"
  17 #include "buffer.h"
  18 #include "auxeffectslot.h"
  19 #include "sourcegroup.h"
  20
  21 namespace alure
  22 {
  23
  24 class ALBufferStream {
  25     SharedPtr<Decoder> mDecoder;
  26
  27     ALuint mUpdateLen;
  28     ALuint mNumUpdates;
  29
  30     ALenum mFormat;
  31     ALuint mFrequency;
  32     ALuint mFrameSize;
  33
  34     Vector<ALbyte> mData;
  35     ALbyte mSilence;
  36
  37     Vector<ALuint> mBufferIds;
  38     ALuint mCurrentIdx;
  39
  40     uint64_t mSamplePos;
  41     std::pair<uint64_t,uint64_t> mLoopPts;
  42     bool mHasLooped;
  43     std::atomic<bool> mDone;
  44
  45 public:
  46     ALBufferStream(SharedPtr<Decoder> decoder, ALuint updatelen, ALuint numupdates)
  47       : mDecoder(decoder), mUpdateLen(updatelen), mNumUpdates(numupdates),
  48         mFormat(AL_NONE), mFrequency(0), mFrameSize(0), mSilence(0),
  49         mCurrentIdx(0), mSamplePos(0), mLoopPts{0,0}, mHasLooped(false),
  50         mDone(false)
  51     { }
  52     ~ALBufferStream()
  53     {
  54         if(!mBufferIds.empty())
  55         {
  56             alDeleteBuffers(mBufferIds.size(), mBufferIds.data());
  57             mBufferIds.clear();
  58         }
  59     }
  60
  61     uint64_t getLength() const { return mDecoder->getLength(); }
  62     uint64_t getPosition() const { return mSamplePos; }
  63
  64     ALuint getNumUpdates() const { return mNumUpdates; }
  65     ALuint getUpdateLength() const { return mUpdateLen; }
  66
  67     ALuint getFrequency() const { return mFrequency; }
  68
  69     bool seek(uint64_t pos)
  70     {
  71         if(!mDecoder->seek(pos))
  72             return false;
  73         mSamplePos = pos;
  74         mHasLooped = false;
  75         mDone.store(false, std::memory_order_release);
  76         return true;
  77     }
  78
  79     void prepare()
  80     {
  81         ALuint srate = mDecoder->getFrequency();
  82         ChannelConfig chans = mDecoder->getChannelConfig();
  83         SampleType type = mDecoder->getSampleType();
  84
  85         mLoopPts = mDecoder->getLoopPoints();
  86         if(mLoopPts.first >= mLoopPts.second)
  87         {
  88             mLoopPts.first = 0;
  89             mLoopPts.second = std::numeric_limits<uint64_t>::max();
  90         }
  91
  92         mFrequency = srate;
  93         mFrameSize = FramesToBytes(1, chans, type);
  94         mFormat = GetFormat(chans, type);
  95         if(mFormat == AL_NONE)
  96         {
  97             std::stringstream sstr;
  98             sstr<< "Format not supported ("<<GetSampleTypeName(type)<<", "<<GetChannelConfigName(chans)<<")";
  99             throw std::runtime_error(sstr.str());
 100         }
 101
 102         mData.resize(mUpdateLen * mFrameSize);
 103         if(type == SampleType::UInt8) mSilence = 0x80;
 104         else if(type == SampleType::Mulaw) mSilence = 0x7f;
 105         else mSilence = 0x00;
 106
 107         mBufferIds.assign(mNumUpdates, 0);
 108         alGenBuffers(mBufferIds.size(), mBufferIds.data());
 109     }
 110
 111     int64_t getLoopStart() const { return mLoopPts.first; }
 112     int64_t getLoopEnd() const { return mLoopPts.second; }
 113
 114     bool hasLooped() const { return mHasLooped; }
 115     bool hasMoreData() const { return !mDone.load(std::memory_order_acquire); }
 116     bool streamMoreData(ALuint srcid, bool loop)
 117     {
 118         if(mDone.load(std::memory_order_acquire))
 119             return false;
 120
 121         ALuint frames;
 122         ALuint len = mUpdateLen;
 123         if(loop && mSamplePos <= mLoopPts.second)
 124             len = std::min<uint64_t>(len, mLoopPts.second - mSamplePos);
 125         else
 126             loop = false;
 127
 128         frames = mDecoder->read(mData.data(), len);
 129         mSamplePos += frames;
 130         if(frames < mUpdateLen && loop && mSamplePos > 0)
 131         {
 132             if(mSamplePos < mLoopPts.second)
 133             {
 134                 mLoopPts.second = mSamplePos;
 135                 mLoopPts.first = std::min(mLoopPts.first, mLoopPts.second-1);
 136             }
 137
 138             do {
 139                 if(!mDecoder->seek(mLoopPts.first))
 140                     break;
 141                 mSamplePos = mLoopPts.first;
 142                 mHasLooped = true;
 143
 144                 len = std::min<uint64_t>(mUpdateLen-frames, mLoopPts.second-mLoopPts.first);
 145                 ALuint got = mDecoder->read(&mData[frames*mFrameSize], len);
 146                 if(got == 0) break;
 147                 mSamplePos += got;
 148                 frames += got;
 149             } while(frames < mUpdateLen);
 150         }
 151         if(frames < mUpdateLen)
 152         {
 153             mDone.store(true, std::memory_order_release);
 154             if(frames == 0) return false;
 155             mSamplePos += mUpdateLen - frames;
 156             std::fill(mData.begin() + frames*mFrameSize, mData.end(), mSilence);
 157         }
 158
 159         alBufferData(mBufferIds[mCurrentIdx], mFormat, mData.data(), mData.size(), mFrequency);
 160         alSourceQueueBuffers(srcid, 1, &mBufferIds[mCurrentIdx]);
 161         mCurrentIdx = (mCurrentIdx+1) % mBufferIds.size();
 162         return true;
 163     }
 164 };
 165
 166
 167 SourceImpl::SourceImpl(ContextImpl *context)
 168   : mContext(context), mId(0), mBuffer(0), mGroup(nullptr), mIsAsync(false),
 169     mDirectFilter(AL_FILTER_NULL)
 170 {
 171     resetProperties();
 172 }
 173
 174 SourceImpl::~SourceImpl()
 175 {
 176 }
 177
 178
 179 void SourceImpl::resetProperties()
 180 {
 181     if(mGroup)
 182         mGroup->removeSource(Source(this));
 183     mGroup = nullptr;
 184     mGroupPitch = 1.0f;
 185     mGroupGain = 1.0f;
 186
 187     mFadeGainTarget = 1.0f;
 188     mFadeGain = 1.0f;
 189
 190     mPaused.store(false, std::memory_order_release);
 191     mOffset = 0;
 192     mPitch = 1.0f;
 193     mGain = 1.0f;
 194     mMinGain = 0.0f;
 195     mMaxGain = 1.0f;
 196     mRefDist = 1.0f;
 197     mMaxDist = std::numeric_limits<float>::max();
 198     mPosition = Vector3(0.0f);
 199     mVelocity = Vector3(0.0f);
 200     mDirection = Vector3(0.0f);
 201     mOrientation[0] = Vector3(0.0f, 0.0f, -1.0f);
 202     mOrientation[1] = Vector3(0.0f, 1.0f,  0.0f);
 203     mConeInnerAngle = 360.0f;
 204     mConeOuterAngle = 360.0f;
 205     mConeOuterGain = 0.0f;
 206     mConeOuterGainHF = 1.0f;
 207     mRolloffFactor = 1.0f;
 208     mRoomRolloffFactor = 0.0f;
 209     mDopplerFactor = 1.0f;
 210     mAirAbsorptionFactor = 0.0f;
 211     mRadius = 0.0f;
 212     mStereoAngles[0] =  F_PI / 6.0f;
 213     mStereoAngles[1] = -F_PI / 6.0f;
 214     mSpatialize = Spatialize::Auto;
 215     mResampler = mContext->hasExtension(AL::SOFT_source_resampler) ?
 216                  alGetInteger(AL_DEFAULT_RESAMPLER_SOFT) : 0;
 217     mLooping = false;
 218     mRelative = false;
 219     mDryGainHFAuto = true;
 220     mWetGainAuto = true;
 221     mWetGainHFAuto = true;
 222     if(mDirectFilter)
 223         mContext->alDeleteFilters(1, &mDirectFilter);
 224     mDirectFilter = 0;
 225     for(auto &i : mEffectSlots)
 226     {
 227         if(i.second.mSlot)
 228             i.second.mSlot->removeSourceSend({Source(this), i.first});
 229         if(i.second.mFilter)
 230             mContext->alDeleteFilters(1, &i.second.mFilter);
 231     }
 232     mEffectSlots.clear();
 233
 234     mPriority = 0;
 235 }
 236
 237 void SourceImpl::applyProperties(bool looping, ALuint offset) const
 238 {
 239     alSourcei(mId, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
 240     alSourcei(mId, AL_SAMPLE_OFFSET, offset);
 241     alSourcef(mId, AL_PITCH, mPitch * mGroupPitch);
 242     alSourcef(mId, AL_GAIN, mGain * mGroupGain * mFadeGain);
 243     alSourcef(mId, AL_MIN_GAIN, mMinGain);
 244     alSourcef(mId, AL_MAX_GAIN, mMaxGain);
 245     alSourcef(mId, AL_REFERENCE_DISTANCE, mRefDist);
 246     alSourcef(mId, AL_MAX_DISTANCE, mMaxDist);
 247     alSourcefv(mId, AL_POSITION, mPosition.getPtr());
 248     alSourcefv(mId, AL_VELOCITY, mVelocity.getPtr());
 249     alSourcefv(mId, AL_DIRECTION, mDirection.getPtr());
 250     if(mContext->hasExtension(AL::EXT_BFORMAT))
 251         alSourcefv(mId, AL_ORIENTATION, &mOrientation[0][0]);
 252     alSourcef(mId, AL_CONE_INNER_ANGLE, mConeInnerAngle);
 253     alSourcef(mId, AL_CONE_OUTER_ANGLE, mConeOuterAngle);
 254     alSourcef(mId, AL_CONE_OUTER_GAIN, mConeOuterGain);
 255     alSourcef(mId, AL_ROLLOFF_FACTOR, mRolloffFactor);
 256     alSourcef(mId, AL_DOPPLER_FACTOR, mDopplerFactor);
 257     if(mContext->hasExtension(AL::EXT_SOURCE_RADIUS))
 258         alSourcef(mId, AL_SOURCE_RADIUS, mRadius);
 259     if(mContext->hasExtension(AL::EXT_STEREO_ANGLES))
 260         alSourcefv(mId, AL_STEREO_ANGLES, mStereoAngles);
 261     if(mContext->hasExtension(AL::SOFT_source_spatialize))
 262         alSourcei(mId, AL_SOURCE_SPATIALIZE_SOFT, (ALint)mSpatialize);
 263     if(mContext->hasExtension(AL::SOFT_source_resampler))
 264         alSourcei(mId, AL_SOURCE_RESAMPLER_SOFT, mResampler);
 265     alSourcei(mId, AL_SOURCE_RELATIVE, mRelative ? AL_TRUE : AL_FALSE);
 266     if(mContext->hasExtension(AL::EXT_EFX))
 267     {
 268         alSourcef(mId, AL_CONE_OUTER_GAINHF, mConeOuterGainHF);
 269         alSourcef(mId, AL_ROOM_ROLLOFF_FACTOR, mRoomRolloffFactor);
 270         alSourcef(mId, AL_AIR_ABSORPTION_FACTOR, mAirAbsorptionFactor);
 271         alSourcei(mId, AL_DIRECT_FILTER_GAINHF_AUTO, mDryGainHFAuto ? AL_TRUE : AL_FALSE);
 272         alSourcei(mId, AL_AUXILIARY_SEND_FILTER_GAIN_AUTO, mWetGainAuto ? AL_TRUE : AL_FALSE);
 273         alSourcei(mId, AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO, mWetGainHFAuto ? AL_TRUE : AL_FALSE);
 274         alSourcei(mId, AL_DIRECT_FILTER, mDirectFilter);
 275         for(const auto &i : mEffectSlots)
 276         {
 277             ALuint slotid = (i.second.mSlot ? i.second.mSlot->getId() : 0);
 278             alSource3i(mId, AL_AUXILIARY_SEND_FILTER, slotid, i.first, i.second.mFilter);
 279         }
 280     }
 281 }
 282
 283
 284 void SourceImpl::setGroup(SourceGroupImpl *group)
 285 {
 286     if(mGroup)
 287         mGroup->removeSource(Source(this));
 288     mGroup = group;
 289     mGroupPitch = mGroup->getAppliedPitch();
 290     mGroupGain = mGroup->getAppliedGain();
 291     if(mId)
 292     {
 293         alSourcef(mId, AL_PITCH, mPitch * mGroupPitch);
 294         alSourcef(mId, AL_GAIN, mGain * mGroupGain);
 295     }
 296 }
 297
 298 void SourceImpl::unsetGroup()
 299 {
 300     mGroup = nullptr;
 301     mGroupPitch = 1.0f;
 302     mGroupGain = 1.0f;
 303     if(mId)
 304     {
 305         alSourcef(mId, AL_PITCH, mPitch * mGroupPitch);
 306         alSourcef(mId, AL_GAIN, mGain * mGroupGain * mFadeGain);
 307     }
 308 }
 309
 310 void SourceImpl::groupPropUpdate(ALfloat gain, ALfloat pitch)
 311 {
 312     if(mId)
 313     {
 314         alSourcef(mId, AL_PITCH, mPitch * pitch);
 315         alSourcef(mId, AL_GAIN, mGain * gain * mFadeGain);
 316     }
 317     mGroupPitch = pitch;
 318     mGroupGain = gain;
 319 }
 320
 321
 322 void SourceImpl::play(Buffer buffer)
 323 {
 324     BufferImpl *albuf = buffer.getHandle();
 325     if(!albuf) throw std::runtime_error("Buffer is not valid");
 326     CheckContext(mContext);
 327     CheckContext(albuf->getContext());
 328
 329     if(mStream)
 330         mContext->removeStream(this);
 331     mIsAsync.store(false, std::memory_order_release);
 332
 333     mFadeGainTarget = mFadeGain = 1.0f;
 334     mFadeTimeTarget = mLastFadeTime = std::chrono::steady_clock::now();
 335
 336     if(mId == 0)
 337     {
 338         mId = mContext->getSourceId(mPriority);
 339         applyProperties(mLooping, (ALuint)std::min<uint64_t>(mOffset, std::numeric_limits<ALint>::max()));
 340     }
 341     else
 342     {
 343         mContext->removeFadingSource(this);
 344         mContext->removePlayingSource(this);
 345         alSourceRewind(mId);
 346         alSourcei(mId, AL_BUFFER, 0);
 347         alSourcei(mId, AL_LOOPING, mLooping ? AL_TRUE : AL_FALSE);
 348         alSourcei(mId, AL_SAMPLE_OFFSET, (ALuint)std::min<uint64_t>(mOffset, std::numeric_limits<ALint>::max()));
 349     }
 350     mOffset = 0;
 351
 352     mStream.reset();
 353     if(mBuffer)
 354         mBuffer->removeSource(Source(this));
 355     mBuffer = albuf;
 356     mBuffer->addSource(Source(this));
 357
 358     alSourcei(mId, AL_BUFFER, mBuffer->getId());
 359     alSourcePlay(mId);
 360     mPaused.store(false, std::memory_order_release);
 361     mContext->removePendingSource(this);
 362     mContext->addPlayingSource(this, mId);
 363 }
 364
 365 void SourceImpl::play(SharedPtr<Decoder> decoder, ALuint chunk_len, ALuint queue_size)
 366 {
 367     if(chunk_len < 64)
 368         throw std::runtime_error("Update length out of range");
 369     if(queue_size < 2)
 370         throw std::runtime_error("Queue size out of range");
 371     CheckContext(mContext);
 372
 373     auto stream = MakeUnique<ALBufferStream>(decoder, chunk_len, queue_size);
 374     stream->prepare();
 375
 376     if(mStream)
 377         mContext->removeStream(this);
 378     mIsAsync.store(false, std::memory_order_release);
 379
 380     mFadeGainTarget = mFadeGain = 1.0f;
 381     mFadeTimeTarget = mLastFadeTime = std::chrono::steady_clock::now();
 382
 383     if(mId == 0)
 384     {
 385         mId = mContext->getSourceId(mPriority);
 386         applyProperties(false, 0);
 387     }
 388     else
 389     {
 390         mContext->removeFadingSource(this);
 391         mContext->removePlayingSource(this);
 392         alSourceRewind(mId);
 393         alSourcei(mId, AL_BUFFER, 0);
 394         alSourcei(mId, AL_LOOPING, AL_FALSE);
 395         alSourcei(mId, AL_SAMPLE_OFFSET, 0);
 396     }
 397
 398     mStream.reset();
 399     if(mBuffer)
 400         mBuffer->removeSource(Source(this));
 401     mBuffer = 0;
 402
 403     mStream = std::move(stream);
 404
 405     mStream->seek(mOffset);
 406     mOffset = 0;
 407
 408     for(ALuint i = 0;i < mStream->getNumUpdates();i++)
 409     {
 410         if(!mStream->streamMoreData(mId, mLooping))
 411             break;
 412     }
 413     alSourcePlay(mId);
 414     mPaused.store(false, std::memory_order_release);
 415
 416     mContext->addStream(this);
 417     mIsAsync.store(true, std::memory_order_release);
 418     mContext->removePendingSource(this);
 419     mContext->addPlayingSource(this);
 420 }
 421
 422 void SourceImpl::play(SharedFuture<Buffer> future_buffer)
 423 {
 424     if(!future_buffer.valid())
 425         throw std::runtime_error("Invalid future buffer");
 426     if(future_buffer.wait_for(std::chrono::milliseconds::zero()) == std::future_status::ready)
 427     {
 428         play(future_buffer.get());
 429         return;
 430     }
 431
 432     CheckContext(mContext);
 433
 434     mContext->removeFadingSource(this);
 435     mContext->removePlayingSource(this);
 436     makeStopped(true);
 437
 438     mFadeGainTarget = mFadeGain = 1.0f;
 439     mFadeTimeTarget = mLastFadeTime = std::chrono::steady_clock::now();
 440
 441     mContext->addPendingSource(this, std::move(future_buffer));
 442 }
 443
 444
 445 void SourceImpl::makeStopped(bool dolock)
 446 {
 447     if(mStream)
 448     {
 449         if(dolock)
 450             mContext->removeStream(this);
 451         else
 452             mContext->removeStreamNoLock(this);
 453     }
 454     mIsAsync.store(false, std::memory_order_release);
 455
 456     if(mId != 0)
 457     {
 458         alSourceRewind(mId);
 459         alSourcei(mId, AL_BUFFER, 0);
 460         if(mContext->hasExtension(AL::EXT_EFX))
 461         {
 462             alSourcei(mId, AL_DIRECT_FILTER, AL_FILTER_NULL);
 463             for(auto &i : mEffectSlots)
 464                 alSource3i(mId, AL_AUXILIARY_SEND_FILTER, 0, i.first, AL_FILTER_NULL);
 465         }
 466         mContext->insertSourceId(mId);
 467         mId = 0;
 468     }
 469
 470     mStream.reset();
 471     if(mBuffer)
 472         mBuffer->removeSource(Source(this));
 473     mBuffer = 0;
 474
 475     mPaused.store(false, std::memory_order_release);
 476 }
 477
 478 void SourceImpl::stop()
 479 {
 480     CheckContext(mContext);
 481     mContext->removePendingSource(this);
 482     mContext->removeFadingSource(this);
 483     mContext->removePlayingSource(this);
 484     makeStopped();
 485 }
 486
 487
 488 void SourceImpl::fadeOutToStop(ALfloat gain, std::chrono::milliseconds duration)
 489 {
 490     if(!(gain < 1.0f && gain >= 0.0f))
 491         throw std::runtime_error("Fade gain target out of range");
 492     if(duration.count() <= 0)
 493         throw std::runtime_error("Fade duration out of range");
 494     CheckContext(mContext);
 495
 496     mFadeGainTarget = std::max<ALfloat>(gain, 0.0001f);
 497     mLastFadeTime = std::chrono::steady_clock::now();
 498     mFadeTimeTarget = mLastFadeTime + duration;
 499
 500     mContext->addFadingSource(this);
 501 }
 502
 503
 504 void SourceImpl::checkPaused()
 505 {
 506     if(mPaused.load(std::memory_order_acquire) || mId == 0)
 507         return;
 508
 509     ALint state = -1;
 510     alGetSourcei(mId, AL_SOURCE_STATE, &state);
 511     // Streaming sources may be in a stopped or initial state if underrun
 512     mPaused.store(state == AL_PAUSED || (mStream && mStream->hasMoreData()),
 513                   std::memory_order_release);
 514 }
 515
 516 void SourceImpl::pause()
 517 {
 518     CheckContext(mContext);
 519     if(mPaused.load(std::memory_order_acquire))
 520         return;
 521
 522     if(mId != 0)
 523     {
 524         std::lock_guard<std::mutex> lock(mMutex);
 525         alSourcePause(mId);
 526         ALint state = -1;
 527         alGetSourcei(mId, AL_SOURCE_STATE, &state);
 528         // Streaming sources may be in a stopped or initial state if underrun
 529         mPaused.store(state == AL_PAUSED || (mStream && mStream->hasMoreData()),
 530                       std::memory_order_release);
 531     }
 532 }
 533
 534 void SourceImpl::resume()
 535 {
 536     CheckContext(mContext);
 537     if(!mPaused.load(std::memory_order_acquire))
 538         return;
 539
 540     if(mId != 0)
 541         alSourcePlay(mId);
 542     mPaused.store(false, std::memory_order_release);
 543 }
 544
 545
 546 bool SourceImpl::isPending() const
 547 {
 548     CheckContext(mContext);
 549     return mContext->isPendingSource(this);
 550 }
 551
 552 bool SourceImpl::isPlaying() const
 553 {
 554     CheckContext(mContext);
 555     if(mId == 0) return false;
 556
 557     ALint state = -1;
 558     alGetSourcei(mId, AL_SOURCE_STATE, &state);
 559     if(state == -1)
 560         throw std::runtime_error("Source state error");
 561
 562     return state == AL_PLAYING || (!mPaused.load(std::memory_order_acquire) &&
 563                                    mStream && mStream->hasMoreData());
 564 }
 565
 566 bool SourceImpl::isPaused() const
 567 {
 568     CheckContext(mContext);
 569     return mId != 0 && mPaused.load(std::memory_order_acquire);
 570 }
 571
 572
 573 bool SourceImpl::checkPending(SharedFuture<Buffer> &future)
 574 {
 575     if(future.wait_for(std::chrono::milliseconds::zero()) != std::future_status::ready)
 576         return true;
 577
 578     BufferImpl *buffer = future.get().getHandle();
 579     if(Expect<false>(buffer->getContext() != mContext))
 580         return false;
 581
 582     if(mId == 0)
 583     {
 584         mId = mContext->getSourceId(mPriority);
 585         applyProperties(mLooping, (ALuint)std::min<uint64_t>(mOffset, std::numeric_limits<ALint>::max()));
 586     }
 587     else
 588     {
 589         alSourceRewind(mId);
 590         alSourcei(mId, AL_BUFFER, 0);
 591         alSourcei(mId, AL_LOOPING, mLooping ? AL_TRUE : AL_FALSE);
 592         alSourcei(mId, AL_SAMPLE_OFFSET, (ALuint)std::min<uint64_t>(mOffset, std::numeric_limits<ALint>::max()));
 593     }
 594     mOffset = 0;
 595
 596     mBuffer = buffer;
 597     mBuffer->addSource(Source(this));
 598
 599     alSourcei(mId, AL_BUFFER, mBuffer->getId());
 600     alSourcePlay(mId);
 601     mPaused.store(false, std::memory_order_release);
 602     mContext->addPlayingSource(this, mId);
 603     return false;
 604 }
 605
 606 bool SourceImpl::fadeUpdate(std::chrono::steady_clock::time_point cur_fade_time)
 607 {
 608     if((cur_fade_time - mFadeTimeTarget).count() >= 0)
 609     {
 610         mLastFadeTime = mFadeTimeTarget;
 611         mFadeGain = 1.0f;
 612         if(mFadeGainTarget >= 1.0f)
 613         {
 614             if(mId != 0)
 615                 alSourcef(mId, AL_GAIN, mGain * mGroupGain);
 616             return false;
 617         }
 618         mContext->removePendingSource(this);
 619         mContext->removePlayingSource(this);
 620         makeStopped(true);
 621         return false;
 622     }
 623
 624     float mult = std::pow(mFadeGainTarget/mFadeGain,
 625         float(1.0/Seconds(mFadeTimeTarget-mLastFadeTime).count())
 626     );
 627
 628     std::chrono::steady_clock::duration duration = cur_fade_time - mLastFadeTime;
 629     mLastFadeTime = cur_fade_time;
 630
 631     float gain = mFadeGain * std::pow(mult, (float)Seconds(duration).count());
 632     if(Expect<false>(gain == mFadeGain))
 633     {
 634         // Ensure the gain keeps moving toward its target, in case precision
 635         // loss results in no change with small steps.
 636         gain = std::nextafter(gain, mFadeGainTarget);
 637     }
 638     mFadeGain = gain;
 639
 640     if(mId != 0)
 641         alSourcef(mId, AL_GAIN, mGain * mGroupGain * mFadeGain);
 642     return true;
 643 }
 644
 645 bool SourceImpl::playUpdate(ALuint id)
 646 {
 647     ALint state = -1;
 648     alGetSourcei(id, AL_SOURCE_STATE, &state);
 649     if(Expect<true>(state == AL_PLAYING || state == AL_PAUSED))
 650         return true;
 651
 652     makeStopped();
 653     mContext->send(&MessageHandler::sourceStopped, Source(this));
 654     return false;
 655 }
 656
 657 bool SourceImpl::playUpdate()
 658 {
 659     if(Expect<true>(mIsAsync.load(std::memory_order_acquire)))
 660         return true;
 661
 662     makeStopped();
 663     mContext->send(&MessageHandler::sourceStopped, Source(this));
 664     return false;
 665 }
 666
 667
 668 ALint SourceImpl::refillBufferStream()
 669 {
 670     ALint processed;
 671     alGetSourcei(mId, AL_BUFFERS_PROCESSED, &processed);
 672     while(processed > 0)
 673     {
 674         ALuint buf;
 675         alSourceUnqueueBuffers(mId, 1, &buf);
 676         --processed;
 677     }
 678
 679     ALint queued;
 680     alGetSourcei(mId, AL_BUFFERS_QUEUED, &queued);
 681     for(;(ALuint)queued < mStream->getNumUpdates();queued++)
 682     {
 683         if(!mStream->streamMoreData(mId, mLooping))
 684             break;
 685     }
 686
 687     return queued;
 688 }
 689
 690 bool SourceImpl::updateAsync()
 691 {
 692     std::lock_guard<std::mutex> lock(mMutex);
 693
 694     ALint queued = refillBufferStream();
 695     if(queued == 0)
 696     {
 697         mIsAsync.store(false, std::memory_order_release);
 698         return false;
 699     }
 700
 701     ALint state = -1;
 702     alGetSourcei(mId, AL_SOURCE_STATE, &state);
 703     if(!mPaused.load(std::memory_order_acquire))
 704     {
 705         // Make sure the source is still playing if it's not paused.
 706         if(state != AL_PLAYING)
 707             alSourcePlay(mId);
 708     }
 709     else
 710     {
 711         // Rewind the source to an initial state if it underrun as it was
 712         // paused.
 713         if(state == AL_STOPPED)
 714             alSourceRewind(mId);
 715     }
 716     return true;
 717 }
 718
 719
 720 void SourceImpl::setPriority(ALuint priority)
 721 {
 722     mPriority = priority;
 723 }
 724
 725
 726 void SourceImpl::setOffset(uint64_t offset)
 727 {
 728     CheckContext(mContext);
 729     if(mId == 0)
 730     {
 731         mOffset = offset;
 732         return;
 733     }
 734
 735     if(!mStream)
 736     {
 737         if(offset >= std::numeric_limits<ALint>::max())
 738             throw std::runtime_error("Offset out of range");
 739         alGetError();
 740         alSourcei(mId, AL_SAMPLE_OFFSET, (ALint)offset);
 741         if(alGetError() != AL_NO_ERROR)
 742             throw std::runtime_error("Offset out of range");
 743     }
 744     else
 745     {
 746         std::lock_guard<std::mutex> lock(mMutex);
 747         if(!mStream->seek(offset))
 748             throw std::runtime_error("Failed to seek to offset");
 749         alSourceRewind(mId);
 750         alSourcei(mId, AL_BUFFER, 0);
 751         ALint queued = refillBufferStream();
 752         if(queued > 0 && !mPaused.load(std::memory_order_acquire))
 753             alSourcePlay(mId);
 754     }
 755 }
 756
 757 std::pair<uint64_t,std::chrono::nanoseconds> SourceImpl::getSampleOffsetLatency() const
 758 {
 759     std::pair<uint64_t,std::chrono::nanoseconds> ret{0, std::chrono::nanoseconds::zero()};
 760     CheckContext(mContext);
 761     if(mId == 0) return ret;
 762
 763     if(mStream)
 764     {
 765         std::lock_guard<std::mutex> lock(mMutex);
 766         ALint queued = 0, state = -1, srcpos = 0;
 767
 768         alGetSourcei(mId, AL_BUFFERS_QUEUED, &queued);
 769         if(mContext->hasExtension(AL::SOFT_source_latency))
 770         {
 771             ALint64SOFT val[2];
 772             mContext->alGetSourcei64vSOFT(mId, AL_SAMPLE_OFFSET_LATENCY_SOFT, val);
 773             srcpos = val[0]>>32;
 774             ret.second = std::chrono::nanoseconds(val[1]);
 775         }
 776         else
 777             alGetSourcei(mId, AL_SAMPLE_OFFSET, &srcpos);
 778         alGetSourcei(mId, AL_SOURCE_STATE, &state);
 779
 780         int64_t streampos = mStream->getPosition();
 781         if(state != AL_STOPPED)
 782         {
 783             // The amount of samples in the queue waiting to play
 784             ALuint inqueue = queued*mStream->getUpdateLength() - srcpos;
 785             if(!mStream->hasLooped())
 786             {
 787                 // A non-looped stream should never have more samples queued
 788                 // than have been read...
 789                 streampos = std::max<int64_t>(streampos, inqueue) - inqueue;
 790             }
 791             else
 792             {
 793                 streampos -= inqueue;
 794                 int64_t looplen = mStream->getLoopEnd() - mStream->getLoopStart();
 795                 while(streampos < mStream->getLoopStart())
 796                     streampos += looplen;
 797             }
 798         }
 799
 800         ret.first = streampos;
 801         return ret;
 802     }
 803
 804     ALint srcpos = 0;
 805     if(mContext->hasExtension(AL::SOFT_source_latency))
 806     {
 807         ALint64SOFT val[2];
 808         mContext->alGetSourcei64vSOFT(mId, AL_SAMPLE_OFFSET_LATENCY_SOFT, val);
 809         srcpos = val[0]>>32;
 810         ret.second = std::chrono::nanoseconds(val[1]);
 811     }
 812     else
 813         alGetSourcei(mId, AL_SAMPLE_OFFSET, &srcpos);
 814     ret.first = srcpos;
 815     return ret;
 816 }
 817
 818 std::pair<Seconds,Seconds> SourceImpl::getSecOffsetLatency() const
 819 {
 820     std::pair<Seconds,Seconds> ret{Seconds::zero(), Seconds::zero()};
 821     CheckContext(mContext);
 822     if(mId == 0) return ret;
 823
 824     if(mStream)
 825     {
 826         std::lock_guard<std::mutex> lock(mMutex);
 827         ALint queued = 0, state = -1;
 828         ALdouble srcpos = 0;
 829
 830         alGetSourcei(mId, AL_BUFFERS_QUEUED, &queued);
 831         if(mContext->hasExtension(AL::SOFT_source_latency))
 832         {
 833             ALdouble val[2];
 834             mContext->alGetSourcedvSOFT(mId, AL_SEC_OFFSET_LATENCY_SOFT, val);
 835             srcpos = val[0];
 836             ret.second = Seconds(val[1]);
 837         }
 838         else
 839         {
 840             ALfloat f;
 841             alGetSourcef(mId, AL_SEC_OFFSET, &f);
 842             srcpos = f;
 843         }
 844         alGetSourcei(mId, AL_SOURCE_STATE, &state);
 845
 846         ALdouble frac = 0.0;
 847         int64_t streampos = mStream->getPosition();
 848         if(state != AL_STOPPED)
 849         {
 850             ALdouble ipos;
 851             frac = std::modf(srcpos * mStream->getFrequency(), &ipos);
 852
 853             // The amount of samples in the queue waiting to play
 854             ALuint inqueue = queued*mStream->getUpdateLength() - (ALuint)ipos;
 855             if(!mStream->hasLooped())
 856             {
 857                 // A non-looped stream should never have more samples queued
 858                 // than have been read...
 859                 streampos = std::max<int64_t>(streampos, inqueue) - inqueue;
 860             }
 861             else
 862             {
 863                 streampos -= inqueue;
 864                 int64_t looplen = mStream->getLoopEnd() - mStream->getLoopStart();
 865                 while(streampos < mStream->getLoopStart())
 866                     streampos += looplen;
 867             }
 868         }
 869
 870         ret.first = Seconds((streampos+frac) / mStream->getFrequency());
 871         return ret;
 872     }
 873
 874     if(mContext->hasExtension(AL::SOFT_source_latency))
 875     {
 876         ALdouble val[2];
 877         mContext->alGetSourcedvSOFT(mId, AL_SEC_OFFSET_LATENCY_SOFT, val);
 878         ret.first = Seconds(val[0]);
 879         ret.second = Seconds(val[1]);
 880     }
 881     else
 882     {
 883         ALfloat f;
 884         alGetSourcef(mId, AL_SEC_OFFSET, &f);
 885         ret.first = Seconds(f);
 886     }
 887     return ret;
 888 }
 889
 890
 891 void SourceImpl::setLooping(bool looping)
 892 {
 893     CheckContext(mContext);
 894
 895     if(mId && !mStream)
 896         alSourcei(mId, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
 897     mLooping = looping;
 898 }
 899
 900
 901 void SourceImpl::setPitch(ALfloat pitch)
 902 {
 903     if(!(pitch > 0.0f))
 904         throw std::runtime_error("Pitch out of range");
 905     CheckContext(mContext);
 906     if(mId != 0)
 907         alSourcef(mId, AL_PITCH, pitch * mGroupPitch);
 908     mPitch = pitch;
 909 }
 910
 911
 912 void SourceImpl::setGain(ALfloat gain)
 913 {
 914     if(!(gain >= 0.0f))
 915         throw std::runtime_error("Gain out of range");
 916     CheckContext(mContext);
 917     if(mId != 0)
 918         alSourcef(mId, AL_GAIN, gain * mGroupGain * mFadeGain);
 919     mGain = gain;
 920 }
 921
 922 void SourceImpl::setGainRange(ALfloat mingain, ALfloat maxgain)
 923 {
 924     if(!(mingain >= 0.0f && maxgain <= 1.0f && maxgain >= mingain))
 925         throw std::runtime_error("Gain range out of range");
 926     CheckContext(mContext);
 927     if(mId != 0)
 928     {
 929         alSourcef(mId, AL_MIN_GAIN, mingain);
 930         alSourcef(mId, AL_MAX_GAIN, maxgain);
 931     }
 932     mMinGain = mingain;
 933     mMaxGain = maxgain;
 934 }
 935
 936
 937 void SourceImpl::setDistanceRange(ALfloat refdist, ALfloat maxdist)
 938 {
 939     if(!(refdist >= 0.0f && maxdist <= std::numeric_limits<float>::max() && refdist <= maxdist))
 940         throw std::runtime_error("Distance range out of range");
 941     CheckContext(mContext);
 942     if(mId != 0)
 943     {
 944         alSourcef(mId, AL_REFERENCE_DISTANCE, refdist);
 945         alSourcef(mId, AL_MAX_DISTANCE, maxdist);
 946     }
 947     mRefDist = refdist;
 948     mMaxDist = maxdist;
 949 }
 950
 951
 952 void SourceImpl::set3DParameters(const Vector3 &position, const Vector3 &velocity, const Vector3 &direction)
 953 {
 954     CheckContext(mContext);
 955     if(mId != 0)
 956     {
 957         Batcher batcher = mContext->getBatcher();
 958         alSourcefv(mId, AL_POSITION, position.getPtr());
 959         alSourcefv(mId, AL_VELOCITY, velocity.getPtr());
 960         alSourcefv(mId, AL_DIRECTION, direction.getPtr());
 961     }
 962     mPosition = position;
 963     mVelocity = velocity;
 964     mDirection = direction;
 965 }
 966
 967 void SourceImpl::set3DParameters(const Vector3 &position, const Vector3 &velocity, std::pair<Vector3,Vector3> orientation)
 968 {
 969     static_assert(sizeof(orientation) == sizeof(ALfloat[6]), "Invalid Vector3 pair size");
 970     CheckContext(mContext);
 971     if(mId != 0)
 972     {
 973         Batcher batcher = mContext->getBatcher();
 974         alSourcefv(mId, AL_POSITION, position.getPtr());
 975         alSourcefv(mId, AL_VELOCITY, velocity.getPtr());
 976         if(mContext->hasExtension(AL::EXT_BFORMAT))
 977             alSourcefv(mId, AL_ORIENTATION, orientation.first.getPtr());
 978         alSourcefv(mId, AL_DIRECTION, orientation.first.getPtr());
 979     }
 980     mPosition = position;
 981     mVelocity = velocity;
 982     mDirection = mOrientation[0] = orientation.first;
 983     mOrientation[1] = orientation.second;
 984 }
 985
 986
 987 void SourceImpl::setPosition(ALfloat x, ALfloat y, ALfloat z)
 988 {
 989     CheckContext(mContext);
 990     if(mId != 0)
 991         alSource3f(mId, AL_POSITION, x, y, z);
 992     mPosition[0] = x;
 993     mPosition[1] = y;
 994     mPosition[2] = z;
 995 }
 996
 997 void SourceImpl::setPosition(const ALfloat *pos)
 998 {
 999     CheckContext(mContext);
1000     if(mId != 0)
1001         alSourcefv(mId, AL_POSITION, pos);
1002     mPosition[0] = pos[0];
1003     mPosition[1] = pos[1];
1004     mPosition[2] = pos[2];
1005 }
1006
1007 void SourceImpl::setVelocity(ALfloat x, ALfloat y, ALfloat z)
1008 {
1009     CheckContext(mContext);
1010     if(mId != 0)
1011         alSource3f(mId, AL_VELOCITY, x, y, z);
1012     mVelocity[0] = x;
1013     mVelocity[1] = y;
1014     mVelocity[2] = z;
1015 }
1016
1017 void SourceImpl::setVelocity(const ALfloat *vel)
1018 {
1019     CheckContext(mContext);
1020     if(mId != 0)
1021         alSourcefv(mId, AL_VELOCITY, vel);
1022     mVelocity[0] = vel[0];
1023     mVelocity[1] = vel[1];
1024     mVelocity[2] = vel[2];
1025 }
1026
1027 void SourceImpl::setDirection(ALfloat x, ALfloat y, ALfloat z)
1028 {
1029     CheckContext(mContext);
1030     if(mId != 0)
1031         alSource3f(mId, AL_DIRECTION, x, y, z);
1032     mDirection[0] = x;
1033     mDirection[1] = y;
1034     mDirection[2] = z;
1035 }
1036
1037 void SourceImpl::setDirection(const ALfloat *dir)
1038 {
1039     CheckContext(mContext);
1040     if(mId != 0)
1041         alSourcefv(mId, AL_DIRECTION, dir);
1042     mDirection[0] = dir[0];
1043     mDirection[1] = dir[1];
1044     mDirection[2] = dir[2];
1045 }
1046
1047 void SourceImpl::setOrientation(ALfloat x1, ALfloat y1, ALfloat z1, ALfloat x2, ALfloat y2, ALfloat z2)
1048 {
1049     CheckContext(mContext);
1050     if(mId != 0)
1051     {
1052         ALfloat ori[6] = { x1, y1, z1, x2, y2, z2 };
1053         if(mContext->hasExtension(AL::EXT_BFORMAT))
1054             alSourcefv(mId, AL_ORIENTATION, ori);
1055         alSourcefv(mId, AL_DIRECTION, ori);
1056     }
1057     mDirection[0] = mOrientation[0][0] = x1;
1058     mDirection[1] = mOrientation[0][1] = y1;
1059     mDirection[2] = mOrientation[0][2] = z1;
1060     mOrientation[1][0] = x2;
1061     mOrientation[1][1] = y2;
1062     mOrientation[1][2] = z2;
1063 }
1064
1065 void SourceImpl::setOrientation(const ALfloat *at, const ALfloat *up)
1066 {
1067     CheckContext(mContext);
1068     if(mId != 0)
1069     {
1070         ALfloat ori[6] = { at[0], at[1], at[2], up[0], up[1], up[2] };
1071         if(mContext->hasExtension(AL::EXT_BFORMAT))
1072             alSourcefv(mId, AL_ORIENTATION, ori);
1073         alSourcefv(mId, AL_DIRECTION, ori);
1074     }
1075     mDirection[0] = mOrientation[0][0] = at[0];
1076     mDirection[1] = mOrientation[0][1] = at[1];
1077     mDirection[2] = mOrientation[0][2] = at[2];
1078     mOrientation[1][0] = up[0];
1079     mOrientation[1][1] = up[1];
1080     mOrientation[1][2] = up[2];
1081 }
1082
1083 void SourceImpl::setOrientation(const ALfloat *ori)
1084 {
1085     CheckContext(mContext);
1086     if(mId != 0)
1087     {
1088         if(mContext->hasExtension(AL::EXT_BFORMAT))
1089             alSourcefv(mId, AL_ORIENTATION, ori);
1090         alSourcefv(mId, AL_DIRECTION, ori);
1091     }
1092     mDirection[0] = mOrientation[0][0] = ori[0];
1093     mDirection[1] = mOrientation[0][1] = ori[1];
1094     mDirection[2] = mOrientation[0][2] = ori[2];
1095     mOrientation[1][0] = ori[3];
1096     mOrientation[1][1] = ori[4];
1097     mOrientation[1][2] = ori[5];
1098 }
1099
1100
1101 void SourceImpl::setConeAngles(ALfloat inner, ALfloat outer)
1102 {
1103     if(!(inner >= 0.0f && outer <= 360.0f && outer >= inner))
1104         throw std::runtime_error("Cone angles out of range");
1105     CheckContext(mContext);
1106     if(mId != 0)
1107     {
1108         alSourcef(mId, AL_CONE_INNER_ANGLE, inner);
1109         alSourcef(mId, AL_CONE_OUTER_ANGLE, outer);
1110     }
1111     mConeInnerAngle = inner;
1112     mConeOuterAngle = outer;
1113 }
1114
1115 void SourceImpl::setOuterConeGains(ALfloat gain, ALfloat gainhf)
1116 {
1117     if(!(gain >= 0.0f && gain <= 1.0f && gainhf >= 0.0f && gainhf <= 1.0f))
1118         throw std::runtime_error("Outer cone gain out of range");
1119     CheckContext(mContext);
1120     if(mId != 0)
1121     {
1122         alSourcef(mId, AL_CONE_OUTER_GAIN, gain);
1123         if(mContext->hasExtension(AL::EXT_EFX))
1124             alSourcef(mId, AL_CONE_OUTER_GAINHF, gainhf);
1125     }
1126     mConeOuterGain = gain;
1127     mConeOuterGainHF = gainhf;
1128 }
1129
1130
1131 void SourceImpl::setRolloffFactors(ALfloat factor, ALfloat roomfactor)
1132 {
1133     if(!(factor >= 0.0f && roomfactor >= 0.0f))
1134         throw std::runtime_error("Rolloff factor out of range");
1135     CheckContext(mContext);
1136     if(mId != 0)
1137     {
1138         alSourcef(mId, AL_ROLLOFF_FACTOR, factor);
1139         if(mContext->hasExtension(AL::EXT_EFX))
1140             alSourcef(mId, AL_ROOM_ROLLOFF_FACTOR, roomfactor);
1141     }
1142     mRolloffFactor = factor;
1143     mRoomRolloffFactor = roomfactor;
1144 }
1145
1146 void SourceImpl::setDopplerFactor(ALfloat factor)
1147 {
1148     if(!(factor >= 0.0f && factor <= 1.0f))
1149         throw std::runtime_error("Doppler factor out of range");
1150     CheckContext(mContext);
1151     if(mId != 0)
1152         alSourcef(mId, AL_DOPPLER_FACTOR, factor);
1153     mDopplerFactor = factor;
1154 }
1155
1156 void SourceImpl::setAirAbsorptionFactor(ALfloat factor)
1157 {
1158     if(!(factor >= 0.0f && factor <= 10.0f))
1159         throw std::runtime_error("Absorption factor out of range");
1160     CheckContext(mContext);
1161     if(mId != 0 && mContext->hasExtension(AL::EXT_EFX))
1162         alSourcef(mId, AL_AIR_ABSORPTION_FACTOR, factor);
1163     mAirAbsorptionFactor = factor;
1164 }
1165
1166 void SourceImpl::setRadius(ALfloat radius)
1167 {
1168     if(!(mRadius >= 0.0f))
1169         throw std::runtime_error("Radius out of range");
1170     CheckContext(mContext);
1171     if(mId != 0 && mContext->hasExtension(AL::EXT_SOURCE_RADIUS))
1172         alSourcef(mId, AL_SOURCE_RADIUS, radius);
1173     mRadius = radius;
1174 }
1175
1176 void SourceImpl::setStereoAngles(ALfloat leftAngle, ALfloat rightAngle)
1177 {
1178     CheckContext(mContext);
1179     if(mId != 0 && mContext->hasExtension(AL::EXT_STEREO_ANGLES))
1180     {
1181         ALfloat angles[2] = { leftAngle, rightAngle };
1182         alSourcefv(mId, AL_STEREO_ANGLES, angles);
1183     }
1184     mStereoAngles[0] = leftAngle;
1185     mStereoAngles[1] = rightAngle;
1186 }
1187
1188 void SourceImpl::set3DSpatialize(Spatialize spatialize)
1189 {
1190     CheckContext(mContext);
1191     if(mId != 0 && mContext->hasExtension(AL::SOFT_source_spatialize))
1192         alSourcei(mId, AL_SOURCE_SPATIALIZE_SOFT, (ALint)spatialize);
1193     mSpatialize = spatialize;
1194 }
1195
1196 void SourceImpl::setResamplerIndex(ALsizei index)
1197 {
1198     if(index < 0)
1199         throw std::runtime_error("Resampler index out of range");
1200     index = std::min<ALsizei>(index, mContext->getAvailableResamplers().size());
1201     if(mId != 0 && mContext->hasExtension(AL::SOFT_source_resampler))
1202         alSourcei(mId, AL_SOURCE_RESAMPLER_SOFT, index);
1203     mResampler = index;
1204 }
1205
1206 void SourceImpl::setRelative(bool relative)
1207 {
1208     CheckContext(mContext);
1209     if(mId != 0)
1210         alSourcei(mId, AL_SOURCE_RELATIVE, relative ? AL_TRUE : AL_FALSE);
1211     mRelative = relative;
1212 }
1213
1214 void SourceImpl::setGainAuto(bool directhf, bool send, bool sendhf)
1215 {
1216     CheckContext(mContext);
1217     if(mId != 0 && mContext->hasExtension(AL::EXT_EFX))
1218     {
1219         alSourcei(mId, AL_DIRECT_FILTER_GAINHF_AUTO, directhf ? AL_TRUE : AL_FALSE);
1220         alSourcei(mId, AL_AUXILIARY_SEND_FILTER_GAIN_AUTO, send ? AL_TRUE : AL_FALSE);
1221         alSourcei(mId, AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO, sendhf ? AL_TRUE : AL_FALSE);
1222     }
1223     mDryGainHFAuto = directhf;
1224     mWetGainAuto = send;
1225     mWetGainHFAuto = sendhf;
1226 }
1227
1228
1229 void SourceImpl::setFilterParams(ALuint &filterid, const FilterParams &params)
1230 {
1231     if(!mContext->hasExtension(AL::EXT_EFX))
1232         return;
1233
1234     if(!(params.mGain < 1.0f || params.mGainHF < 1.0f || params.mGainLF < 1.0f))
1235     {
1236         if(filterid)
1237             mContext->alFilteri(filterid, AL_FILTER_TYPE, AL_FILTER_NULL);
1238         return;
1239     }
1240
1241     alGetError();
1242     if(!filterid)
1243     {
1244         mContext->alGenFilters(1, &filterid);
1245         if(alGetError() != AL_NO_ERROR)
1246             throw std::runtime_error("Failed to create Filter");
1247     }
1248     bool filterset = false;
1249     if(params.mGainHF < 1.0f && params.mGainLF < 1.0f)
1250     {
1251         mContext->alFilteri(filterid, AL_FILTER_TYPE, AL_FILTER_BANDPASS);
1252         if(alGetError() == AL_NO_ERROR)
1253         {
1254             mContext->alFilterf(filterid, AL_BANDPASS_GAIN, std::min(params.mGain, 1.0f));
1255             mContext->alFilterf(filterid, AL_BANDPASS_GAINHF, std::min(params.mGainHF, 1.0f));
1256             mContext->alFilterf(filterid, AL_BANDPASS_GAINLF, std::min(params.mGainLF, 1.0f));
1257             filterset = true;
1258         }
1259     }
1260     if(!filterset && !(params.mGainHF < 1.0f) && params.mGainLF < 1.0f)
1261     {
1262         mContext->alFilteri(filterid, AL_FILTER_TYPE, AL_FILTER_HIGHPASS);
1263         if(alGetError() == AL_NO_ERROR)
1264         {
1265             mContext->alFilterf(filterid, AL_HIGHPASS_GAIN, std::min(params.mGain, 1.0f));
1266             mContext->alFilterf(filterid, AL_HIGHPASS_GAINLF, std::min(params.mGainLF, 1.0f));
1267             filterset = true;
1268         }
1269     }
1270     if(!filterset)
1271     {
1272         mContext->alFilteri(filterid, AL_FILTER_TYPE, AL_FILTER_LOWPASS);
1273         if(alGetError() == AL_NO_ERROR)
1274         {
1275             mContext->alFilterf(filterid, AL_LOWPASS_GAIN, std::min(params.mGain, 1.0f));
1276             mContext->alFilterf(filterid, AL_LOWPASS_GAINHF, std::min(params.mGainHF, 1.0f));
1277             filterset = true;
1278         }
1279     }
1280 }
1281
1282
1283 void SourceImpl::setDirectFilter(const FilterParams &filter)
1284 {
1285     if(!(filter.mGain >= 0.0f && filter.mGainHF >= 0.0f && filter.mGainLF >= 0.0f))
1286         throw std::runtime_error("Gain value out of range");
1287     CheckContext(mContext);
1288
1289     setFilterParams(mDirectFilter, filter);
1290     if(mId)
1291         alSourcei(mId, AL_DIRECT_FILTER, mDirectFilter);
1292 }
1293
1294 void SourceImpl::setSendFilter(ALuint send, const FilterParams &filter)
1295 {
1296     if(!(filter.mGain >= 0.0f && filter.mGainHF >= 0.0f && filter.mGainLF >= 0.0f))
1297         throw std::runtime_error("Gain value out of range");
1298     CheckContext(mContext);
1299
1300     SendPropMap::iterator siter = mEffectSlots.find(send);
1301     if(siter == mEffectSlots.end())
1302     {
1303         ALuint filterid = 0;
1304
1305         setFilterParams(filterid, filter);
1306         if(!filterid) return;
1307
1308         siter = mEffectSlots.insert(std::make_pair(send, SendProps(filterid))).first;
1309     }
1310     else
1311         setFilterParams(siter->second.mFilter, filter);
1312
1313     if(mId)
1314     {
1315         ALuint slotid = (siter->second.mSlot ? siter->second.mSlot->getId() : 0);
1316         alSource3i(mId, AL_AUXILIARY_SEND_FILTER, slotid, send, siter->second.mFilter);
1317     }
1318 }
1319
1320 void SourceImpl::setAuxiliarySend(AuxiliaryEffectSlot auxslot, ALuint send)
1321 {
1322     AuxiliaryEffectSlotImpl *slot = auxslot.getHandle();
1323     if(slot) CheckContext(slot->getContext());
1324     CheckContext(mContext);
1325
1326     SendPropMap::iterator siter = mEffectSlots.find(send);
1327     if(siter == mEffectSlots.end())
1328     {
1329         if(!slot) return;
1330         slot->addSourceSend({Source(this), send});
1331         siter = mEffectSlots.insert(std::make_pair(send, SendProps(slot))).first;
1332     }
1333     else if(siter->second.mSlot != slot)
1334     {
1335         if(slot) slot->addSourceSend({Source(this), send});
1336         if(siter->second.mSlot)
1337             siter->second.mSlot->removeSourceSend({Source(this), send});
1338         siter->second.mSlot = slot;
1339     }
1340
1341     if(mId)
1342     {
1343         ALuint slotid = (siter->second.mSlot ? siter->second.mSlot->getId() : 0);
1344         alSource3i(mId, AL_AUXILIARY_SEND_FILTER, slotid, send, siter->second.mFilter);
1345     }
1346 }
1347
1348 void SourceImpl::setAuxiliarySendFilter(AuxiliaryEffectSlot auxslot, ALuint send, const FilterParams &filter)
1349 {
1350     if(!(filter.mGain >= 0.0f && filter.mGainHF >= 0.0f && filter.mGainLF >= 0.0f))
1351         throw std::runtime_error("Gain value out of range");
1352     AuxiliaryEffectSlotImpl *slot = auxslot.getHandle();
1353     if(slot) CheckContext(slot->getContext());
1354     CheckContext(mContext);
1355
1356     SendPropMap::iterator siter = mEffectSlots.find(send);
1357     if(siter == mEffectSlots.end())
1358     {
1359         ALuint filterid = 0;
1360
1361         setFilterParams(filterid, filter);
1362         if(!filterid && !slot)
1363             return;
1364
1365         if(slot) slot->addSourceSend({Source(this), send});
1366         siter = mEffectSlots.insert(std::make_pair(send, SendProps(slot, filterid))).first;
1367     }
1368     else
1369     {
1370         if(siter->second.mSlot != slot)
1371         {
1372             if(slot) slot->addSourceSend({Source(this), send});
1373             if(siter->second.mSlot)
1374                 siter->second.mSlot->removeSourceSend({Source(this), send});
1375             siter->second.mSlot = slot;
1376         }
1377         setFilterParams(siter->second.mFilter, filter);
1378     }
1379
1380     if(mId)
1381     {
1382         ALuint slotid = (siter->second.mSlot ? siter->second.mSlot->getId() : 0);
1383         alSource3i(mId, AL_AUXILIARY_SEND_FILTER, slotid, send, siter->second.mFilter);
1384     }
1385 }
1386
1387
1388 void SourceImpl::release()
1389 {
1390     stop();
1391
1392     resetProperties();
1393     mContext->freeSource(this);
1394 }
1395
1396
1397 // Need to use these to avoid extraneous commas in macro parameter lists
1398 using UInt64NSecPair = std::pair<uint64_t,std::chrono::nanoseconds>;
1399 using SecondsPair = std::pair<Seconds,Seconds>;
1400 using ALfloatPair = std::pair<ALfloat,ALfloat>;
1401 using Vector3Pair = std::pair<Vector3,Vector3>;
1402 using BoolTriple = std::tuple<bool,bool,bool>;
1403
1404 DECL_THUNK1(void, Source, play,, Buffer)
1405 DECL_THUNK3(void, Source, play,, SharedPtr<Decoder>, ALuint, ALuint)
1406 DECL_THUNK1(void, Source, play,, SharedFuture<Buffer>)
1407 DECL_THUNK0(void, Source, stop,)
1408 DECL_THUNK2(void, Source, fadeOutToStop,, ALfloat, std::chrono::milliseconds)
1409 DECL_THUNK0(void, Source, pause,)
1410 DECL_THUNK0(void, Source, resume,)
1411 DECL_THUNK0(bool, Source, isPending, const)
1412 DECL_THUNK0(bool, Source, isPlaying, const)
1413 DECL_THUNK0(bool, Source, isPaused, const)
1414 DECL_THUNK1(void, Source, setPriority,, ALuint)
1415 DECL_THUNK0(ALuint, Source, getPriority, const)
1416 DECL_THUNK1(void, Source, setOffset,, uint64_t)
1417 DECL_THUNK0(UInt64NSecPair, Source, getSampleOffsetLatency, const)
1418 DECL_THUNK0(SecondsPair, Source, getSecOffsetLatency, const)
1419 DECL_THUNK1(void, Source, setLooping,, bool)
1420 DECL_THUNK0(bool, Source, getLooping, const)
1421 DECL_THUNK1(void, Source, setPitch,, ALfloat)
1422 DECL_THUNK0(ALfloat, Source, getPitch, const)
1423 DECL_THUNK1(void, Source, setGain,, ALfloat)
1424 DECL_THUNK0(ALfloat, Source, getGain, const)
1425 DECL_THUNK2(void, Source, setGainRange,, ALfloat, ALfloat)
1426 DECL_THUNK0(ALfloatPair, Source, getGainRange, const)
1427 DECL_THUNK2(void, Source, setDistanceRange,, ALfloat, ALfloat)
1428 DECL_THUNK0(ALfloatPair, Source, getDistanceRange, const)
1429 DECL_THUNK3(void, Source, set3DParameters,, const Vector3&, const Vector3&, const Vector3&)
1430 DECL_THUNK3(void, Source, set3DParameters,, const Vector3&, const Vector3&, Vector3Pair)
1431 DECL_THUNK3(void, Source, setPosition,, ALfloat, ALfloat, ALfloat)
1432 DECL_THUNK1(void, Source, setPosition,, const ALfloat*)
1433 DECL_THUNK0(Vector3, Source, getPosition, const)
1434 DECL_THUNK3(void, Source, setVelocity,, ALfloat, ALfloat, ALfloat)
1435 DECL_THUNK1(void, Source, setVelocity,, const ALfloat*)
1436 DECL_THUNK0(Vector3, Source, getVelocity, const)
1437 DECL_THUNK3(void, Source, setDirection,, ALfloat, ALfloat, ALfloat)
1438 DECL_THUNK1(void, Source, setDirection,, const ALfloat*)
1439 DECL_THUNK0(Vector3, Source, getDirection, const)
1440 DECL_THUNK6(void, Source, setOrientation,, ALfloat, ALfloat, ALfloat, ALfloat, ALfloat, ALfloat)
1441 DECL_THUNK2(void, Source, setOrientation,, const ALfloat*, const ALfloat*)
1442 DECL_THUNK1(void, Source, setOrientation,, const ALfloat*)
1443 DECL_THUNK0(Vector3Pair, Source, getOrientation, const)
1444 DECL_THUNK2(void, Source, setConeAngles,, ALfloat, ALfloat)
1445 DECL_THUNK0(ALfloatPair, Source, getConeAngles, const)
1446 DECL_THUNK2(void, Source, setOuterConeGains,, ALfloat, ALfloat)
1447 DECL_THUNK0(ALfloatPair, Source, getOuterConeGains, const)
1448 DECL_THUNK2(void, Source, setRolloffFactors,, ALfloat, ALfloat)
1449 DECL_THUNK0(ALfloatPair, Source, getRolloffFactors, const)
1450 DECL_THUNK1(void, Source, setDopplerFactor,, ALfloat)
1451 DECL_THUNK0(ALfloat, Source, getDopplerFactor, const)
1452 DECL_THUNK1(void, Source, setRelative,, bool)
1453 DECL_THUNK0(bool, Source, getRelative, const)
1454 DECL_THUNK1(void, Source, setRadius,, ALfloat)
1455 DECL_THUNK0(ALfloat, Source, getRadius, const)
1456 DECL_THUNK2(void, Source, setStereoAngles,, ALfloat, ALfloat)
1457 DECL_THUNK0(ALfloatPair, Source, getStereoAngles, const)
1458 DECL_THUNK1(void, Source, set3DSpatialize,, Spatialize)
1459 DECL_THUNK0(Spatialize, Source, get3DSpatialize, const)
1460 DECL_THUNK1(void, Source, setResamplerIndex,, ALsizei)
1461 DECL_THUNK0(ALsizei, Source, getResamplerIndex, const)
1462 DECL_THUNK1(void, Source, setAirAbsorptionFactor,, ALfloat)
1463 DECL_THUNK0(ALfloat, Source, getAirAbsorptionFactor, const)
1464 DECL_THUNK3(void, Source, setGainAuto,, bool, bool, bool)
1465 DECL_THUNK0(BoolTriple, Source, getGainAuto, const)
1466 DECL_THUNK1(void, Source, setDirectFilter,, const FilterParams&)
1467 DECL_THUNK2(void, Source, setSendFilter,, ALuint, const FilterParams&)
1468 DECL_THUNK2(void, Source, setAuxiliarySend,, AuxiliaryEffectSlot, ALuint)
1469 DECL_THUNK3(void, Source, setAuxiliarySendFilter,, AuxiliaryEffectSlot, ALuint, const FilterParams&)
1470 void Source::release()
1471 {
1472     pImpl->release();
1473     pImpl = nullptr;
1474 }
1475
1476 }