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[chaz/yoink] / src / Moof / Sound.cc
diff --git a/src/Moof/Sound.cc b/src/Moof/Sound.cc
index 110dc4ba0416e03c268147097bd8e4c7f44821ee..4c60e328085f60d7d282c2e70144079c49c5dbc2 100644 (file)
--- a/src/Moof/Sound.cc
+++ b/src/Moof/Sound.cc
@@ -26,17 +26,20 @@
 
 *******************************************************************************/
 
 
 *******************************************************************************/
 
+#include <cstdio>
+#include <deque>
 #include <string>
 #include <string>
-#include <queue>
 #include <vector>
 
 #include <vector>
 
-#include <SDL/SDL.h>
-#include <SDL/SDL_sound.h>
 #include <AL/al.h>
 #include <AL/al.h>
+#include <vorbis/codec.h>
+#include <vorbis/vorbisfile.h>
 
 
+#include "Exception.hh"
+#include "Library.hh"
 #include "Log.hh"
 #include "Log.hh"
-#include "Mippleton.hh"
 #include "Sound.hh"
 #include "Sound.hh"
+#include "Timer.hh"
 
 #define BUFFER_SIZE (64 * 1024)
 //#define BUFFER_SIZE (5*2048)
 
 #define BUFFER_SIZE (64 * 1024)
 //#define BUFFER_SIZE (5*2048)
@@ -44,418 +47,448 @@
 namespace Mf {
 
 
 namespace Mf {
 
 
-struct Sound::Impl
+class Sound::Impl
 {
 {
+public:
 
 
-       static ALenum getAudioFormat(const Sound_AudioInfo& audioInfo)
+       static ALenum getAudioFormat(const vorbis_info* audioInfo)
        {
        {
-               if (audioInfo.format == AUDIO_U8 || audioInfo.format == AUDIO_S8)
-               {
-                       if (audioInfo.channels == 1) return AL_FORMAT_MONO8;
-                       else                         return AL_FORMAT_STEREO8;
-               }
-               else
-               {
-                       if (audioInfo.channels == 1) return AL_FORMAT_MONO16;
-                       else                         return AL_FORMAT_STEREO16;
-               }
+               if (audioInfo->channels == 1) return AL_FORMAT_MONO16;
+               else                                              return AL_FORMAT_STEREO16;
        }
        
        }
        
+
        class Buffer;
        typedef boost::shared_ptr<Buffer> BufferP;
        
        class Buffer;
        typedef boost::shared_ptr<Buffer> BufferP;
        
-       class Buffer : public Mippleton<Buffer>
+       class Buffer : public Library<Buffer>
        {
        {
-               Sound_Sample*                   sound;
-               std::vector<ALuint>             objects;
-
        public:
 
                Buffer(const std::string& name) :
        public:
 
                Buffer(const std::string& name) :
-                       Mippleton<Buffer>(name),
-                       sound(0)
+                       Library<Buffer>(name),
+                       mBuffer(-1)
                {
                {
+                       mOggStream.datasource = 0;
                        openFile();
                }
 
                ~Buffer()
                {
                        openFile();
                }
 
                ~Buffer()
                {
-                       while (!objects.empty())
+                       if (mOggStream.datasource)
                        {
                        {
-                               alDeleteBuffers(1, &objects.back());
-                               objects.pop_back();
+                               ov_clear(&mOggStream);
                        }
                        }
-
-                       if (sound) Sound_FreeSample(sound);
+                       if (int(mBuffer) != -1) alDeleteBuffers(1, &mBuffer);
                }
 
 
                void openFile()
                {
                }
 
 
                void openFile()
                {
-                       if (sound) Sound_FreeSample(sound);
+                       if (mOggStream.datasource)
+                       {
+                               ov_clear(&mOggStream);
+                               mOggStream.datasource = 0;
+                       }
 
 
-                       sound = Sound_NewSampleFromFile(Sound::getPath(getName()).c_str(),
-                                       0, BUFFER_SIZE);
+                       std::string filePath = Sound::getPath(getName());
+                       int result = ov_fopen((char*)filePath.c_str(), &mOggStream);
 
 
-                       if (!sound)
+                       if (result < 0)
                        {
                        {
-                               logWarning("error while loading sound %s: %s",
-                                               getName().c_str(), Sound_GetError());
-                               throw Exception(Exception::FILE_NOT_FOUND);
+                               logWarning("error while loading sound %s",
+                                               getName().c_str());
+                               throw Exception(ErrorCode::UNKNOWN_AUDIO_FORMAT);
                        }
 
                        }
 
-                       logDebug("buffer size: %d", sound->buffer_size);
-                       logDebug("   channels: %d", sound->actual.channels);
-                       logDebug("     format: %d", sound->actual.format);
-                       logDebug("  frequency: %d", sound->actual.rate);
+                       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)
                {
                }
 
 
                void loadAll(ALuint source)
                {
-                       if (!sound) openFile();
-                       if (!sound) return;
+                       if (!mOggStream.datasource) openFile();
+                       if (!mOggStream.datasource) return;
+
+                       char data[BUFFER_SIZE];
+                       int size = 0;
 
 
-                       unsigned decoded = Sound_DecodeAll(sound);
-                       if (decoded == 0)
+                       for (;;)
+                       {
+                               int section;
+                               int result = ov_read(&mOggStream, data + size,
+                                               BUFFER_SIZE - size, 0, 2, 1, &section);
+
+                               if (result > 0)
+                               {
+                                       size += result;
+                               }
+                               else
+                               {
+                                       if (result < 0) logWarning("vorbis playback error");
+                                       break;
+                               }
+                       }
+                       if (size == 0)
                        {
                                logWarning("decoded no bytes from %s", getName().c_str());
                        {
                                logWarning("decoded no bytes from %s", getName().c_str());
-                               //throw Exception(Exception::FILE_NOT_FOUND);
+                               //throw Exception("file_not_found");
                                return;
                        }
 
                                return;
                        }
 
-                       ALuint obj;
-                       alGenBuffers(1, &obj);
+                       alGenBuffers(1, &mBuffer);
 
 
-                       alBufferData(obj, getAudioFormat(sound->actual), sound->buffer,
-                                       sound->buffer_size, sound->actual.rate);
+                       alBufferData(mBuffer, mFormat, data, size, mFreq);
+                       alSourcei(source, AL_BUFFER, mBuffer);
 
 
-                       objects.push_back(obj);
-
-                       alSourcei(source, AL_BUFFER, obj);
-
-                       // don't need t his anymore
-                       Sound_FreeSample(sound);
-                       sound = 0;
+                       // don't need to keep this loaded
+                       ov_clear(&mOggStream);
+                       mOggStream.datasource = 0;
                }
 
                }
 
-
-               void beginStream(ALuint source, int nBuffers = 4)
+               bool stream(ALuint buffer)
                {
                {
-                       if (!sound) openFile();
-                       if (!sound) return;
+                       char data[BUFFER_SIZE];
+                       int size = 0;
 
 
-                       ALuint objs[nBuffers];
-                       alGenBuffers(nBuffers, objs);
-
-                       for (int i = 0; i < nBuffers; ++i)
+                       while (size < BUFFER_SIZE)
                        {
                        {
-                               objects.push_back(objs[i]);
-                               stream(objs[i]);
-                       }
-
-                       alSourceQueueBuffers(source, nBuffers, objs);
-               }
+                               int section;
+                               int result = ov_read(&mOggStream, data + size,
+                                               BUFFER_SIZE - size, 0, 2, 1, &section);
 
 
-               enum StreamStatus
-               {
-                       STREAM_OK               = 0,
-                       STREAM_EOF              = 1,
-                       STREAM_WRONG    = 2
-               };
-
-               StreamStatus stream(ALuint buffer)
-               {
-                       std::vector<ALuint>::iterator it =
-                               std::find(objects.begin(), objects.end(), buffer);
-
-                       // that buffer doesn't belong to us
-                       if (it == objects.end()) return STREAM_WRONG;
-
-                       unsigned bytes = Sound_Decode(sound);
+                               if (result > 0)
+                               {
+                                       size += result;
+                               }
+                               else
+                               {
+                                       if (result < 0) logWarning("vorbis playback error");
+                                       break;
+                               }
+                       }
 
 
-                       if (bytes == 0) return STREAM_EOF;
+                       if (size == 0) return false;
 
 
-                       alBufferData(buffer, getAudioFormat(sound->actual), sound->buffer,
-                                       bytes, sound->actual.rate);
+                       alBufferData(buffer, mFormat, data, size, mFreq);
 
 
-                       return STREAM_OK;
+                       return true;
                }
 
                }
 
-               inline void rewind()
+               void rewind()
                {
                {
-                       if (!sound) openFile();
-                       else Sound_Rewind(sound);
+                       if (!mOggStream.datasource) openFile();
+                       else ov_raw_seek(&mOggStream, 0);
                }
 
 
                }
 
 
-               // delete unused buffers, return true if all buffers deleted
-               inline bool clear()
-               {
-                       // clear any openal errors
-                       alGetError();
-
-                       while (!objects.empty())
-                       {
-                               ALuint buffer = objects.back();
-                               alDeleteBuffers(1, &buffer);
+       private:
 
 
-                               // 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;
+       };
 
 
-                               objects.pop_back();
-                       }
 
 
-                       return true;
-               }
-       };
+       Impl()
+       {
+               init();
+       }
 
 
+       Impl(const std::string& name)
+       {
+               init();
+               enqueue(name);
+       }
 
 
-       Impl(const std::string& name) :
-               buffer_(Buffer::getInstance(name)),
-               playing_(false),
-               looping_(false)
+       void init()
        {
                ALfloat zero[] = {0.0f, 0.0f, 0.0f};
                
        {
                ALfloat zero[] = {0.0f, 0.0f, 0.0f};
                
-               alGenSources(1, &source_);
+               alGenSources(1, &mSource);
+
+               alSourcef(mSource,  AL_PITCH, 1.0f);
+               alSourcef(mSource,  AL_GAIN, 1.0f);
+               alSourcefv(mSource, AL_POSITION, zero);
+               alSourcefv(mSource, AL_VELOCITY, zero);
 
 
-               alSourcef(source_,  AL_PITCH, 1.0f);
-               alSourcef(source_,  AL_GAIN, 1.0f);
-               alSourcefv(source_, AL_POSITION, zero);
-               alSourcefv(source_, AL_VELOCITY, zero);
+               mIsPlaying = false;
+               mIsLooping = false;
        }
 
        ~Impl()
        {
        }
 
        ~Impl()
        {
-               alDeleteSources(1, &source_);
+               stop();
+
+               alDeleteSources(1, &mSource);
+
+               while (!mBufferObjects.empty())
+               {
+                       alDeleteBuffers(1, &mBufferObjects.back());
+                       mBufferObjects.pop_back();
+               }
        }
 
 
        void play()
        {
        }
 
 
        void play()
        {
+               if (mQueue.empty()) return;
+
                ALenum type;
                ALenum type;
-               alGetSourcei(source_, AL_SOURCE_TYPE, &type);
+               alGetSourcei(mSource, AL_SOURCE_TYPE, &type);
 
                if (type != AL_STATIC)
                {
 
                if (type != AL_STATIC)
                {
-                       buffer_->loadAll(source_);
+                       mQueue.front()->loadAll(mSource);
                }
 
                }
 
-               alSourcei(source_, AL_LOOPING, looping_);
-               alSourcePlay(source_);
-               playing_ = true;
+               alSourcei(mSource, AL_LOOPING, mIsLooping);
+               alSourcePlay(mSource);
+               mIsPlaying = true;
        }
 
 
        void stream()
        {
        }
 
 
        void stream()
        {
-               ALenum type;
-               alGetSourcei(source_, AL_SOURCE_TYPE, &type);
+               stop();
 
 
-               alSourcei(source_, AL_BUFFER, AL_NONE);
-               buffer_->rewind();
-               buffer_->beginStream(source_);
+               alSourcei(mSource, AL_BUFFER, AL_NONE);
+               mQueue.front()->rewind();
+               beginStream();
 
 
-               alSourcei(source_, AL_LOOPING, AL_FALSE);
-               alSourcePlay(source_);
-               playing_ = true;
+               alSourcei(mSource, AL_LOOPING, AL_FALSE);
+               alSourcePlay(mSource);
+               mIsPlaying = true;
+
+               mStreamTimer.init(boost::bind(&Impl::streamUpdate, this, _1, _2), 1.0,
+                               Timer::REPEAT);
+       }
+
+       void beginStream()
+       {
+               ALuint buffer;
+               for (int i = mBufferObjects.size(); i < 8; ++i)
+               {
+                       alGenBuffers(1, &buffer);
+                       mBufferObjects.push_back(buffer);
+               }
+               for (int i = 0; i < 8; ++i)
+               {
+                       buffer = mBufferObjects[i];
+                       mQueue.front()->stream(buffer);
+                       alSourceQueueBuffers(mSource, 1, &buffer);
+               }
        }
 
        }
 
-       inline void update()
+
+       void update()
        {
                ALint finished = 0;
 
        {
                ALint finished = 0;
 
-               alGetSourcei(source_, AL_BUFFERS_PROCESSED, &finished);
+               alGetSourcei(mSource, AL_BUFFERS_PROCESSED, &finished);
 
                while (finished-- > 0)
                {
 
                while (finished-- > 0)
                {
-                       ALuint buffer;
+                       ALuint bufferObj;
+                       alSourceUnqueueBuffers(mSource, 1, &bufferObj);
 
 
-                       alSourceUnqueueBuffers(source_, 1, &buffer);
+                       BufferP buffer = mQueue.front();
+                       bool streamed = buffer->stream(bufferObj);
 
 
-                       Buffer::StreamStatus status = buffer_->stream(buffer);
-
-                       if (status == Buffer::STREAM_OK)
+                       if (streamed)
                        {
                        {
-                               alSourceQueueBuffers(source_, 1, &buffer);
+                               alSourceQueueBuffers(mSource, 1, &bufferObj);
                        }
                        }
-                       else if (status == Buffer::STREAM_EOF)
+                       else
                        {
                        {
-                               if (!queue_.empty())
+                               // the buffer couldn't be streamed, so get rid of it
+                               mQueue.pop_front();
+
+                               if (!mQueue.empty())
                                {
                                        // begin the next buffer in the queue
                                {
                                        // begin the next buffer in the queue
-                                       expired_.push_back(buffer_);
-                                       buffer_ = queue_.front();
-                                       queue_.pop();
-                                       buffer_->beginStream(source_, 1);
+                                       mQueue.front()->rewind();
+                                       mQueue.front()->stream(bufferObj);
+                                       alSourceQueueBuffers(mSource, 1, &bufferObj);
+                                       logInfo("loading new buffer");
                                }
                                }
-                               else if (looping_)
+                               else if (mIsLooping)
                                {
                                {
-                                       // restart from the beginning
-                                       buffer_->rewind();
-                                       buffer_->stream(buffer);
-                                       alSourceQueueBuffers(source_, 1, &buffer);
+                                       // reload the same buffer
+                                       mQueue.push_back(buffer);
+                                       buffer->rewind();
+                                       buffer->stream(bufferObj);
+                                       alSourceQueueBuffers(mSource, 1, &bufferObj);
+                                       logInfo("looping same buffer");
                                }
                        }
                                }
                        }
-                       else if (status == Buffer::STREAM_WRONG)
-                       {
-                               clear();
-                               buffer_->beginStream(source_, 1);
-                       }
                }
 
                ALenum state;
                }
 
                ALenum state;
-               alGetSourcei(source_, AL_SOURCE_STATE, &state);
+               alGetSourcei(mSource, AL_SOURCE_STATE, &state);
 
                // restart playing if we're stopped but supposed to be playing... this
 
                // restart playing if we're stopped but supposed to be playing... this
-               // means we didn't queue enough and the audio skipped
-               if (playing_ && state != AL_PLAYING)
+               // means we didn't queue enough and the audio skipped :-(
+               if (mIsPlaying && state != AL_PLAYING)
                {
                {
-                       alSourcePlay(source_);
-               }
-       }
-
-       inline void clear()
-       {
-               // try to remove expired buffers
-               std::vector<BufferP>::iterator it;
-               for (it = expired_.end() - 1; it >= expired_.begin(); --it)
-               {
-                       if ((*it)->clear()) expired_.erase(it);
+                       alSourcePlay(mSource);
                }
        }
 
 
        void stop()
        {
                }
        }
 
 
        void stop()
        {
-               alSourceStop(source_);
-               playing_ = false;
+               alSourceStop(mSource);
+               mIsPlaying = false;
+
+               mStreamTimer.invalidate();
        }
 
        }
 
-       inline void pause()
+       void pause()
        {
        {
-               alSourcePause(source_);
-               playing_ = false;
+               alSourcePause(mSource);
+               mIsPlaying = false;
+
+               mStreamTimer.invalidate();
        }
 
        }
 
-       inline void resume()
+       void resume()
        {
        {
-               alSourcePlay(source_);
-               playing_ = true;
+               alSourcePlay(mSource);
+               mIsPlaying = true;
+
+               ALenum type;
+               alGetSourcei(mSource, AL_SOURCE_TYPE, &type);
+
+               if (type == AL_STREAMING)
+               {
+                       mStreamTimer.init(boost::bind(&Impl::streamUpdate, this, _1, _2),
+                                       1.0, Timer::REPEAT);
+               }
        }
 
 
        }
 
 
-       inline void setSample(const std::string& name)
+       void setSample(const std::string& name)
        {
                bool playing = isPlaying();
                ALenum type;
        {
                bool playing = isPlaying();
                ALenum type;
-               alGetSourcei(source_, AL_SOURCE_TYPE, &type);
+               alGetSourcei(mSource, AL_SOURCE_TYPE, &type);
 
                stop();
 
                stop();
+               mQueue.clear();
 
 
-               //alSourcei(source_, AL_BUFFER, AL_NONE);
-               buffer_ = Buffer::getInstance(name);
+               //alSourcei(mSource, AL_BUFFER, AL_NONE);
+               enqueue(name);
 
 
-               if (type == AL_STREAMING)
-               {
-                       if (playing) stream();
-               }
-               else
+               if (playing)
                {
                {
-                       if (playing) play();
+                       if (type == AL_STREAMING) stream();
+                       else                      play();
                }
        }
 
                }
        }
 
-       inline void enqueue(const std::string& name)
+       void enqueue(const std::string& name)
        {
                BufferP buffer = Buffer::getInstance(name);
        {
                BufferP buffer = Buffer::getInstance(name);
-               queue_.push(buffer);
+               mQueue.push_back(buffer);
        }
 
 
        }
 
 
-       inline bool isPlaying() const
+       bool isPlaying() const
        {
        {
-               if (playing_) return true;
+               if (mIsPlaying) return true;
 
                ALenum state;
 
                ALenum state;
-               alGetSourcei(source_, AL_SOURCE_STATE, &state);
+               alGetSourcei(mSource, AL_SOURCE_STATE, &state);
 
                return state == AL_PLAYING;
        }
 
 
 
                return state == AL_PLAYING;
        }
 
 
-       inline void setLooping(bool looping)
+       void setLooping(bool looping)
        {
        {
-               looping_ = looping;
+               mIsLooping = looping;
 
                ALenum type;
 
                ALenum type;
-               alGetSourcei(source_, AL_SOURCE_TYPE, &type);
+               alGetSourcei(mSource, AL_SOURCE_TYPE, &type);
 
                if (type != AL_STREAMING)
                {
 
                if (type != AL_STREAMING)
                {
-                       alSourcei(source_, AL_LOOPING, looping_);
+                       alSourcei(mSource, AL_LOOPING, mIsLooping);
                }
        }
 
 
                }
        }
 
 
-       ALuint                                  source_;
-       BufferP                                 buffer_;
+       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
+       }
+
+
+       ALuint                                  mSource;
+       std::vector<ALuint>             mBufferObjects;
+
+       bool                                    mIsPlaying;
+       bool                                    mIsLooping;
 
 
-       bool                                    playing_;
-       bool                                    looping_;
+       std::deque<BufferP>             mQueue;
 
 
-       std::queue<BufferP>             queue_;
-       std::vector<BufferP>    expired_;
+       Timer                                   mStreamTimer;
 };
 
 };
 
+
+Sound::Sound() :
+       // pass through
+       mImpl(new Sound::Impl) {}
+
 Sound::Sound(const std::string& name) :
        // pass through
 Sound::Sound(const std::string& name) :
        // pass through
-       impl_(new Sound::Impl(name)) {}
+       mImpl(new Sound::Impl(name)) {}
 
 
 void Sound::play()
 {
        // pass through
 
 
 void Sound::play()
 {
        // pass through
-       impl_->play();
+       mImpl->play();
 }
 
 }
 
-
 void Sound::stream()
 {
        // pass through
 void Sound::stream()
 {
        // pass through
-       impl_->stream();
-}
-
-void Sound::update(Scalar t, Scalar dt)
-{
-       // pass through
-       impl_->update();
+       mImpl->stream();
 }
 
 
 void Sound::stop()
 {
        // pass through
 }
 
 
 void Sound::stop()
 {
        // pass through
-       impl_->stop();
+       mImpl->stop();
 }
 
 void Sound::pause()
 {
        // pass through
 }
 
 void Sound::pause()
 {
        // pass through
-       impl_->pause();
+       mImpl->pause();
 }
 
 void Sound::resume()
 {
        // pass through
 }
 
 void Sound::resume()
 {
        // pass through
-       impl_->resume();
+       mImpl->resume();
 }
 
 void Sound::toggle()
 {
 }
 
 void Sound::toggle()
 {
-       if (impl_->playing_) pause();
+       if (mImpl->mIsPlaying) pause();
        else resume();
 }
 
        else resume();
 }
 
@@ -463,48 +496,73 @@ void Sound::toggle()
 void Sound::setSample(const std::string& name)
 {
        // pass through
 void Sound::setSample(const std::string& name)
 {
        // pass through
-       impl_->setSample(name);
+       mImpl->setSample(name);
 }
 
 void Sound::enqueue(const std::string& name)
 {
        // pass through
 }
 
 void Sound::enqueue(const std::string& name)
 {
        // pass through
-       impl_->enqueue(name);
+       mImpl->enqueue(name);
 }
 
 
 bool Sound::isPlaying() const
 {
        // pass through
 }
 
 
 bool Sound::isPlaying() const
 {
        // pass through
-       return impl_->isPlaying();
+       return mImpl->isPlaying();
 }
 
 }
 
-void Sound::setPosition(Vector3 position)
+void Sound::setPosition(const Vector3& position)
 {
        float p[3] = {position[0], position[1], position[2]};
 {
        float p[3] = {position[0], position[1], position[2]};
-       alSourcefv(impl_->source_, AL_POSITION, p);
+       alSourcefv(mImpl->mSource, AL_POSITION, p);
 }
 
 }
 
-void Sound::setVelocity(Vector3 velocity)
+void Sound::setVelocity(const Vector3& velocity)
 {
        float v[3] = {velocity[0], velocity[1], velocity[2]};
 {
        float v[3] = {velocity[0], velocity[1], velocity[2]};
-       alSourcefv(impl_->source_, AL_VELOCITY, v);
+       alSourcefv(mImpl->mSource, AL_VELOCITY, v);
 }
 
 void Sound::setGain(Scalar gain)
 {
 }
 
 void Sound::setGain(Scalar gain)
 {
-       alSourcef(impl_->source_, AL_GAIN, float(gain));
+       alSourcef(mImpl->mSource, AL_GAIN, float(gain));
 }
 
 void Sound::setPitch(Scalar pitch)
 {
 }
 
 void Sound::setPitch(Scalar pitch)
 {
-       alSourcef(impl_->source_, AL_PITCH, float(pitch));
+       alSourcef(mImpl->mSource, AL_PITCH, float(pitch));
 }
 
 void Sound::setLooping(bool looping)
 {
        // pass through
 }
 
 void Sound::setLooping(bool looping)
 {
        // pass through
-       impl_->setLooping(looping);
+       mImpl->setLooping(looping);
+}
+
+
+void Sound::setListenerPosition(const Vector3& position)
+{
+       alListener3f(AL_POSITION, float(position[0]), float(position[1]),
+                       float(position[2]));
+}
+
+void Sound::setListenerVelocity(const Vector3& velocity)
+{
+       alListener3f(AL_VELOCITY, float(velocity[0]), float(velocity[1]),
+                       float(velocity[2]));
+}
+
+void Sound::setListenerOrientation(const Vector3& forward, const Vector3& up)
+{
+       float vec[6];
+       vec[0] = float(forward[0]);
+       vec[1] = float(forward[1]);
+       vec[2] = float(forward[2]);
+       vec[3] = float(up[0]);
+       vec[4] = float(up[1]);
+       vec[5] = float(up[2]);
+       alListenerfv(AL_ORIENTATION, vec);
 }
 
 
 }
 
 
port of a 3d side-scroller action game
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