X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fyoink;a=blobdiff_plain;f=src%2FMoof%2FSound.cc;h=ffa270e9e9876768669cd7ca3bdf850d46b5b09c;hp=a04d29b814943de018f678a3425448053f17ab8f;hb=2f239b9ba2a556a5ca810cfffc60552a56a4fe86;hpb=bffc879fc8ee8167bb123310d39fad4e2f426ffd diff --git a/src/Moof/Sound.cc b/src/Moof/Sound.cc index a04d29b..ffa270e 100644 --- a/src/Moof/Sound.cc +++ b/src/Moof/Sound.cc @@ -1,41 +1,28 @@ -/******************************************************************************* - - Copyright (c) 2009, Charles McGarvey - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -*******************************************************************************/ +/*] Copyright (c) 2009-2010, Charles McGarvey [************************** +**] All rights reserved. +* +* vi:ts=4 sw=4 tw=75 +* +* Distributable under the terms and conditions of the 2-clause BSD license; +* see the file COPYING for a complete text of the license. +* +**************************************************************************/ #include +#include +#include #include -#include -#include + +#include #include +#include #include #include -#include "Library.hh" +#include "Error.hh" +#include "Manager.hh" #include "Log.hh" #include "Sound.hh" #include "Timer.hh" @@ -60,38 +47,27 @@ public: class Buffer; typedef boost::shared_ptr BufferP; - class Buffer : public Library + class Buffer : public Manager { - OggVorbis_File mOggStream; - ALenum mFormat; - ALsizei mFreq; - std::vector mObjects; - public: - Buffer(const std::string& name) : - Library(name) + Buffer() : + mBuffer(-1) { mOggStream.datasource = 0; - openFile(); } ~Buffer() { - while (!mObjects.empty()) - { - alDeleteBuffers(1, &mObjects.back()); - mObjects.pop_back(); - } - if (mOggStream.datasource) { ov_clear(&mOggStream); } + if (int(mBuffer) != -1) alDeleteBuffers(1, &mBuffer); } - void openFile() + void init(const std::string& name) { if (mOggStream.datasource) { @@ -99,28 +75,26 @@ public: mOggStream.datasource = 0; } - std::string filePath = Sound::getPath(getName()); - int result = ov_fopen((char*)filePath.c_str(), &mOggStream); + std::string path(name); + if (!Sound::getPath(path)) + { + Error(Error::RESOURCE_NOT_FOUND, path).raise(); + } - if (result < 0) + if (ov_fopen((char*)path.c_str(), &mOggStream) < 0) { - logWarning("error while loading sound %s", - getName().c_str()); - throw Exception(Exception::BAD_AUDIO_FORMAT); + Error(Error::UNKNOWN_AUDIO_FORMAT, path).raise(); } vorbis_info* vorbisInfo = ov_info(&mOggStream, -1); mFormat = getAudioFormat(vorbisInfo); mFreq = vorbisInfo->rate; - - logDebug(" channels: %d", vorbisInfo->channels); - logDebug(" frequency: %d", vorbisInfo->rate); } void loadAll(ALuint source) { - if (!mOggStream.datasource) openFile(); + if (!mOggStream.datasource) init(getName()); if (!mOggStream.datasource) return; char data[BUFFER_SIZE]; @@ -144,58 +118,23 @@ public: } if (size == 0) { - logWarning("decoded no bytes from %s", getName().c_str()); - //throw Exception(Exception::FILE_NOT_FOUND); + logWarning << "decoded no bytes from " + << getName() << std::endl; return; } - ALuint obj; - alGenBuffers(1, &obj); - - alBufferData(obj, mFormat, data, size, mFreq); + alGenBuffers(1, &mBuffer); - mObjects.push_back(obj); + alBufferData(mBuffer, mFormat, data, size, mFreq); + alSourcei(source, AL_BUFFER, mBuffer); - alSourcei(source, AL_BUFFER, obj); - - // don't need this anymore + // don't need to keep this loaded ov_clear(&mOggStream); mOggStream.datasource = 0; } - - void beginStream(ALuint source, int nBuffers = 8) - { - if (!mOggStream.datasource) openFile(); - if (!mOggStream.datasource) return; - - ALuint objs[nBuffers]; - alGenBuffers(nBuffers, objs); - - for (int i = 0; i < nBuffers; ++i) - { - mObjects.push_back(objs[i]); - stream(objs[i]); - } - - alSourceQueueBuffers(source, nBuffers, objs); - } - - enum StreamStatus - { - STREAM_OK = 0, - STREAM_EOF = 1, - STREAM_WRONG = 2 - }; - - StreamStatus stream(ALuint buffer) + bool stream(ALuint buffer) { - std::vector::iterator it = - std::find(mObjects.begin(), mObjects.end(), buffer); - - // that buffer doesn't belong to us - if (it == mObjects.end()) return STREAM_WRONG; - char data[BUFFER_SIZE]; int size = 0; @@ -216,98 +155,128 @@ public: } } - if (size == 0) return STREAM_EOF; + if (size == 0) return false; alBufferData(buffer, mFormat, data, size, mFreq); - return STREAM_OK; + return true; } - inline void rewind() + void rewind() { - if (!mOggStream.datasource) openFile(); + if (!mOggStream.datasource) init(getName()); else ov_raw_seek(&mOggStream, 0); } - // delete unused buffers, return true if all buffers deleted - inline bool clear() - { - // clear any openal errors - alGetError(); + private: - while (!mObjects.empty()) - { - ALuint buffer = mObjects.back(); - alDeleteBuffers(1, &buffer); - - // if an error occured, the buffer was not deleted because it's - // still in use by some source - if (alGetError() != AL_NO_ERROR) return false; + OggVorbis_File mOggStream; + ALenum mFormat; + ALsizei mFreq; + ALuint mBuffer; + }; - mObjects.pop_back(); - } - return true; - } - }; + Impl() + { + init(); + } + Impl(const std::string& name) + { + init(); + enqueue(name); + } - Impl(const std::string& name) : - mBuffer(Buffer::getInstance(name)), - mIsPlaying(false), - mIsLooping(false) + void init() { - ALfloat zero[] = {0.0f, 0.0f, 0.0f}; - + retainBackend(); + + mIsLoaded = false; + mIsPlaying = false; + mIsLooping = false; + alGenSources(1, &mSource); + ALfloat zero[] = {0.0f, 0.0f, 0.0f}; alSourcef(mSource, AL_PITCH, 1.0f); alSourcef(mSource, AL_GAIN, 1.0f); alSourcefv(mSource, AL_POSITION, zero); alSourcefv(mSource, AL_VELOCITY, zero); + + alSourcei(mSource, AL_LOOPING, mIsLooping); } ~Impl() { + stop(); + alDeleteSources(1, &mSource); + + while (!mBuffers.empty()) + { + alDeleteBuffers(1, &mBuffers.back()); + mBuffers.pop_back(); + } + + releaseBackend(); } void play() { - ALenum type; - alGetSourcei(mSource, AL_SOURCE_TYPE, &type); + if (mQueue.empty()) return; - if (type != AL_STATIC) - { - mBuffer->loadAll(mSource); - } + if (!mIsLoaded) mQueue.front()->loadAll(mSource); - alSourcei(mSource, AL_LOOPING, mIsLooping); alSourcePlay(mSource); - mIsPlaying = true; + mIsLoaded = true; } - void stream() + void playStream() { - ALenum type; - alGetSourcei(mSource, AL_SOURCE_TYPE, &type); + if (mQueue.empty()) return; - alSourcei(mSource, AL_BUFFER, AL_NONE); - mBuffer->rewind(); - mBuffer->beginStream(mSource); + if (!mIsPlaying) + { + alSourcei(mSource, AL_LOOPING, false); + bufferStream(); + } + + if (!mStreamTimer.isValid()) + { + mStreamTimer.init(boost::bind(&Impl::streamUpdate, this, _1, _2), + 1.0, Timer::REPEAT); + } - alSourcei(mSource, AL_LOOPING, AL_FALSE); alSourcePlay(mSource); mIsPlaying = true; + } + + void bufferStream() + { + ALuint buffer; + for (int i = mBuffers.size(); i <= 8; ++i) + { + alGenBuffers(1, &buffer); - mStreamTimer.init(boost::bind(&Impl::streamUpdate, this, _1, _2), 1.0, - Timer::REPEAT); + if (mQueue.front()->stream(buffer)) + { + alSourceQueueBuffers(mSource, 1, &buffer); + mBuffers.push_back(buffer); + } + else + { + alDeleteBuffers(1, &buffer); + break; + } + } } - inline void update() + + void update() { ALint finished = 0; @@ -315,111 +284,105 @@ public: while (finished-- > 0) { - ALuint buffer; - - alSourceUnqueueBuffers(mSource, 1, &buffer); + ALuint bufferObj; + alSourceUnqueueBuffers(mSource, 1, &bufferObj); - Buffer::StreamStatus status = mBuffer->stream(buffer); + BufferP buffer = mQueue.front(); + bool streamed = buffer->stream(bufferObj); - if (status == Buffer::STREAM_OK) + if (streamed) { - alSourceQueueBuffers(mSource, 1, &buffer); + alSourceQueueBuffers(mSource, 1, &bufferObj); } - else if (status == Buffer::STREAM_EOF) + else { + // the buffer couldn't be streamed, so get rid of it + mQueue.pop_front(); + if (!mQueue.empty()) { // begin the next buffer in the queue - mExpired.push_back(mBuffer); - mBuffer = mQueue.front(); - mQueue.pop(); - mBuffer->beginStream(mSource, 1); + mQueue.front()->rewind(); + mQueue.front()->stream(bufferObj); + alSourceQueueBuffers(mSource, 1, &bufferObj); + logInfo("loading new buffer"); + + // queue up any unused buffers + bufferStream(); } else if (mIsLooping) { - // restart from the beginning - mBuffer->rewind(); - mBuffer->stream(buffer); - alSourceQueueBuffers(mSource, 1, &buffer); + // reload the same buffer + mQueue.push_back(buffer); + buffer->rewind(); + buffer->stream(bufferObj); + alSourceQueueBuffers(mSource, 1, &bufferObj); + logInfo("looping same buffer"); + } + else + { + // nothing more to play, stopping... + mIsPlaying = false; + std::remove(mBuffers.begin(), mBuffers.end(), + bufferObj); } - } - else if (status == Buffer::STREAM_WRONG) - { - clear(); - mBuffer->beginStream(mSource, 1); } } ALenum state; alGetSourcei(mSource, AL_SOURCE_STATE, &state); - // restart playing if we're stopped but supposed to be playing... this - // means we didn't queue enough and the audio skipped + // restart playing if we're stopped but supposed to be playing... + // this means we didn't queue enough and the audio skipped :-( if (mIsPlaying && state != AL_PLAYING) { alSourcePlay(mSource); } } - inline void clear() - { - // try to remove expired buffers - std::vector::iterator it; - for (it = mExpired.end() - 1; it >= mExpired.begin(); --it) - { - if ((*it)->clear()) mExpired.erase(it); - } - } - void stop() { alSourceStop(mSource); mIsPlaying = false; + + mStreamTimer.invalidate(); } - inline void pause() + void pause() { alSourcePause(mSource); mIsPlaying = false; - } - inline void resume() - { - alSourcePlay(mSource); - mIsPlaying = true; + mStreamTimer.invalidate(); } - inline void setSample(const std::string& name) + void setSample(const std::string& name) { - bool playing = isPlaying(); - ALenum type; - alGetSourcei(mSource, AL_SOURCE_TYPE, &type); - stop(); + alSourcei(mSource, AL_BUFFER, AL_NONE); - //alSourcei(mSource, AL_BUFFER, AL_NONE); - mBuffer = Buffer::getInstance(name); + mQueue.clear(); + mIsLoaded = false; - if (type == AL_STREAMING) - { - if (playing) stream(); - } - else + enqueue(name); + + while (!mBuffers.empty()) { - if (playing) play(); + alDeleteBuffers(1, &mBuffers.back()); + mBuffers.pop_back(); } } - inline void enqueue(const std::string& name) + void enqueue(const std::string& name) { BufferP buffer = Buffer::getInstance(name); - mQueue.push(buffer); + mQueue.push_back(buffer); } - inline bool isPlaying() const + bool isPlaying() const { if (mIsPlaying) return true; @@ -430,7 +393,7 @@ public: } - inline void setLooping(bool looping) + void setLooping(bool looping) { mIsLooping = looping; @@ -444,44 +407,92 @@ public: } + void streamUpdate(Timer& timer, Scalar t) + { + // don't let the music die! + update(); + // TODO - might be nice to also allow using threads for streaming + // rather than a timer, probably as a compile-time option + } + + static void retainBackend() + { + if (gRetainCount++ == 0) + { + gAlDevice = alcOpenDevice(0); + gAlContext = alcCreateContext(gAlDevice, 0); + if (!gAlDevice || !gAlContext) + { + const char* error = alcGetString(gAlDevice, + alcGetError(gAlDevice)); + logError << "audio subsystem initialization failure: " + << error << std::endl; + } + else + { + alcMakeContextCurrent(gAlContext); + logInfo << "opened sound device `" + << alcGetString(gAlDevice, + ALC_DEFAULT_DEVICE_SPECIFIER) + << "'" << std::endl; + } + } + } + + static void releaseBackend() + { + if (--gRetainCount == 0) + { + alcMakeContextCurrent(0); + alcDestroyContext(gAlContext); + alcCloseDevice(gAlDevice); + } + } + + ALuint mSource; - BufferP mBuffer; + std::list mBuffers; + bool mIsLoaded; bool mIsPlaying; bool mIsLooping; - std::queue mQueue; - std::vector mExpired; + std::deque mQueue; Timer mStreamTimer; - void streamUpdate(Timer& timer, Scalar t) - { - // don't let the music die! - update(); - // TODO - might be nice to also allow using threads for streaming rather - // than a timer, probably as a compile-time option - } + static unsigned gRetainCount; + static ALCdevice* gAlDevice; + static ALCcontext* gAlContext; }; +unsigned Sound::Impl::gRetainCount = 0; +ALCdevice* Sound::Impl::gAlDevice = 0; +ALCcontext* Sound::Impl::gAlContext = 0; + + +Sound::Sound() : + // pass through + mImpl(new Sound::Impl) {} + Sound::Sound(const std::string& name) : // pass through mImpl(new Sound::Impl(name)) {} -void Sound::play() +void Sound::setSample(const std::string& name) { // pass through - mImpl->play(); + mImpl->setSample(name); } -void Sound::stream() + +void Sound::play() { // pass through - mImpl->stream(); + mImpl->play(); } - void Sound::stop() { // pass through @@ -494,48 +505,30 @@ void Sound::pause() mImpl->pause(); } -void Sound::resume() -{ - // pass through - mImpl->resume(); -} void Sound::toggle() { - if (mImpl->mIsPlaying) pause(); - else resume(); -} - - -void Sound::setSample(const std::string& name) -{ - // pass through - mImpl->setSample(name); + if (isPlaying()) pause(); + else play(); } -void Sound::enqueue(const std::string& name) -{ - // pass through - mImpl->enqueue(name); -} - - bool Sound::isPlaying() const { // pass through return mImpl->isPlaying(); } + void Sound::setPosition(const Vector3& position) { - float p[3] = {position[0], position[1], position[2]}; - alSourcefv(mImpl->mSource, AL_POSITION, p); + float vec[3] = {position[0], position[1], position[2]}; + alSourcefv(mImpl->mSource, AL_POSITION, vec); } void Sound::setVelocity(const Vector3& velocity) { - float v[3] = {velocity[0], velocity[1], velocity[2]}; - alSourcefv(mImpl->mSource, AL_VELOCITY, v); + float vec[3] = {velocity[0], velocity[1], velocity[2]}; + alSourcefv(mImpl->mSource, AL_VELOCITY, vec); } void Sound::setGain(Scalar gain) @@ -557,17 +550,18 @@ void Sound::setLooping(bool looping) void Sound::setListenerPosition(const Vector3& position) { - alListener3f(AL_POSITION, float(position[0]), float(position[1]), - float(position[2])); + float vec[] = {position[0], position[1], position[2]}; + alListenerfv(AL_POSITION, vec); } void Sound::setListenerVelocity(const Vector3& velocity) { - alListener3f(AL_VELOCITY, float(velocity[0]), float(velocity[1]), - float(velocity[2])); + float vec[] = {velocity[0], velocity[1], velocity[2]}; + alListenerfv(AL_VELOCITY, vec); } -void Sound::setListenerOrientation(const Vector3& forward, const Vector3& up) +void Sound::setListenerOrientation(const Vector3& forward, + const Vector3& up) { float vec[6]; vec[0] = float(forward[0]); @@ -580,14 +574,28 @@ void Sound::setListenerOrientation(const Vector3& forward, const Vector3& up) } -std::string Sound::getPath(const std::string& name) +bool Sound::getPath(std::string& name) { - std::string path = Resource::getPath("sounds/" + name + ".ogg"); - return path; + return Resource::getPath(name, "sounds/", "ogg"); } -} // namespace Mf +//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + -/** vim: set ts=4 sw=4 tw=80: *************************************************/ +void SoundStream::enqueue(const std::string& name) +{ + // pass through + mImpl->enqueue(name); +} + + +void SoundStream::play() +{ + // pass through + mImpl->playStream(); +} + + +} // namespace Mf