unsafe protected override void PreDetachVirtualChannel()
{
OpenALSoundWorld.criticalSection.Enter();
Al.alSourceStop(alSource);
OpenALSoundWorld.CheckError();
if (currentSound is OpenALDataBufferSound)
{
if (currentSound is OpenALFileStreamSound)
{
OpenALSoundWorld.Instance.fileStreamRealChannels.Remove(this);
}
if (streamBuffer != null)
{
NativeUtils.Free((IntPtr)streamBuffer);
streamBuffer = null;
streamBufferSize = 0;
}
}
Al.alSourcei(alSource, Al.AL_BUFFER, 0);
OpenALSoundWorld.CheckError();
currentSound = null;
OpenALSoundWorld.criticalSection.Leave();
}
void UpdateVolume2()
{
float value = CurrentVirtualChannel.GetTotalVolume() * CurrentVirtualChannel.GetRolloffFactor();
Al.alSourcef(alSource, Al.AL_GAIN, value);
OpenALSoundWorld.CheckError();
}
void UpdateVelocity2()
{
Vec3 value = CurrentVirtualChannel.Velocity;
Al.alSource3f(alSource, Al.AL_VELOCITY, value.X, value.Y, value.Z);
OpenALSoundWorld.CheckError();
}
void UpdatePosition2()
{
Vec3 value = CurrentVirtualChannel.Position;
Al.alSource3f(alSource, Al.AL_POSITION, value.X, value.Y, value.Z);
OpenALSoundWorld.CheckError();
}
void UpdatePan2()
{
float value = CurrentVirtualChannel.Pan;
MathFunctions.Clamp(ref value, -1, 1);
Al.alSource3f(alSource, Al.AL_POSITION, value * .1f, 0, 0);
OpenALSoundWorld.CheckError();
}
void UpdateVelocity2()
{
Vector3 value = CurrentVirtualChannel.Velocity;
//!!!!double
Al.alSource3f(alSource, Al.AL_VELOCITY, (float)value.X, (float)value.Y, (float)value.Z);
OpenALSoundWorld.CheckError();
}
void UpdatePosition2()
{
Vector3 value = CurrentVirtualChannel.Position;
//!!!!!double
Al.alSource3f(alSource, Al.AL_POSITION, (float)value.X, (float)value.Y, (float)value.Z);
OpenALSoundWorld.CheckError();
}
void UpdateSample()
{
int state;
Al.alGetSourcei(alSource, Al.AL_SOURCE_STATE, out state);
OpenALSoundWorld.CheckError();
if (state == Al.AL_STOPPED)
{
CurrentVirtualChannel.Stop();
}
}
void FileStreamStartPlay()
{
for (int n = 0; n < streamAlDataBuffers.Length; n++)
{
if (!FileStream(streamAlDataBuffers[n]))
{
return;
}
Al.alSourceQueueBuffers(alSource, 1, ref streamAlDataBuffers[n]);
OpenALSoundWorld.CheckError();
}
}
unsafe bool FileStream(int alStreamBuffer)
{
OpenALFileStreamSound fileStreamSound = (OpenALFileStreamSound)currentSound;
int size = 0;
streamDataAvailable = true;
while (size < streamBufferSize)
{
byte *pointer = streamBuffer + size;
int readBytes = fileStreamSound.vorbisFile.read((IntPtr)pointer,
streamBufferSize - size, 0, 2, 1, IntPtr.Zero);
//convert to mono for 3D
if (readBytes > 0 && fileStreamSound.needConvertToMono)
{
readBytes /= 2;
for (int n = 0; n < readBytes; n += 2)
{
pointer[n + 0] = pointer[n * 2 + 0];
pointer[n + 1] = pointer[n * 2 + 1];
}
}
if (readBytes > 0)
{
size += readBytes;
}
else
{
break;
}
}
if (size == 0)
{
streamDataAvailable = false;
return(false);
}
int alFormat = (currentSound.channels == 1) ? Al.AL_FORMAT_MONO16 :
Al.AL_FORMAT_STEREO16;
Al.alBufferData(alStreamBuffer, alFormat, streamBuffer, size, currentSound.frequency);
OpenALSoundWorld.CheckError();
return(true);
}
//
unsafe protected bool GenerateBuffers(int count)
{
alDataBuffers = new int[count];
fixed(int *pAlDataBuffers = alDataBuffers)
{
Al.alGenBuffers(alDataBuffers.Length, pAlDataBuffers);
}
if (OpenALSoundWorld.CheckError())
{
return(false);
}
return(true);
}
protected override void OnDispose()
{
OpenALSoundWorld.criticalSection.Enter();
if (alBuffer != 0)
{
Al.alDeleteBuffers(1, ref alBuffer);
OpenALSoundWorld.CheckError();
alBuffer = 0;
}
OpenALSoundWorld.criticalSection.Leave();
base.OnDispose();
}
unsafe internal protected override void PreDetachVirtualChannel()
{
OpenALSoundWorld.criticalSection.Enter();
Al.alSourceStop(alSource);
OpenALSoundWorld.CheckError();
//never delete buffer because cannot delete. maybe need some time to free buffer internally
////delete al data buffers
//if( streamAlDataBuffers != null )
//{
// fixed ( int* pAlDataBuffers = streamAlDataBuffers )
// Al.alDeleteBuffers( streamAlDataBuffers.Length, pAlDataBuffers );
// OpenALSoundWorld.CheckError();
// streamAlDataBuffers = null;
//}
if (currentSound is OpenALDataBufferSound)
{
if (currentSound is OpenALFileStreamSound)
{
OpenALSoundWorld.fileStreamRealChannels.Remove(this);
}
if (streamBuffer != null)
{
NativeUtility.Free((IntPtr)streamBuffer);
streamBuffer = null;
streamBufferSize = 0;
}
}
fileStreamVorbisFile?.Dispose();
fileStreamVorbisFile = null;
fileStreamVorbisFileReader?.Dispose();
fileStreamVorbisFileReader = null;
Al.alSourcei(alSource, Al.AL_BUFFER, 0);
OpenALSoundWorld.CheckError();
currentSound = null;
OpenALSoundWorld.criticalSection.Leave();
}
unsafe protected override void OnDispose()
{
OpenALSoundWorld.criticalSection.Enter();
if (alDataBuffers != null)
{
fixed(int *pAlDataBuffers = alDataBuffers)
{
Al.alDeleteBuffers(alDataBuffers.Length, pAlDataBuffers);
}
OpenALSoundWorld.CheckError();
alDataBuffers = null;
}
OpenALSoundWorld.criticalSection.Leave();
base.OnDispose();
}
protected override void ShutdownLibrary()
{
if (thread != null)
{
needAbortThread = true;
Thread.Sleep(50);
thread.Abort();
}
if (realChannels != null)
{
foreach (OpenALRealChannel realChannel in realChannels)
{
if (realChannel.alSource != 0)
{
Al.alDeleteSources(1, ref realChannel.alSource);
realChannel.alSource = 0;
}
}
}
try
{
Alc.alcMakeContextCurrent(IntPtr.Zero);
Alc.alcDestroyContext(alContext);
Alc.alcCloseDevice(alDevice);
}
catch { }
if (realChannels != null)
{
realChannels.Clear();
realChannels = null;
}
if (criticalSection != null)
{
criticalSection.Dispose();
criticalSection = null;
}
instance = null;
}
unsafe void UpdateDataStream()
{
OpenALDataStreamSound dataStreamSound = (OpenALDataStreamSound)currentSound;
int alFormat = (currentSound.channels == 1) ? Al.AL_FORMAT_MONO16 : Al.AL_FORMAT_STEREO16;
int processed;
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
OpenALSoundWorld.CheckError();
while (processed != 0)
{
int alBuffer = 0;
int readed = ReadDataFromDataStream((IntPtr)streamBuffer, streamBufferSize);
Al.alSourceUnqueueBuffers(alSource, 1, ref alBuffer);
OpenALSoundWorld.CheckError();
Al.alBufferData(alBuffer, alFormat, streamBuffer, readed, currentSound.frequency);
OpenALSoundWorld.CheckError();
Al.alSourceQueueBuffers(alSource, 1, ref alBuffer);
OpenALSoundWorld.CheckError();
processed--;
}
int state;
Al.alGetSourcei(alSource, Al.AL_SOURCE_STATE, out state);
OpenALSoundWorld.CheckError();
if (state != Al.AL_PLAYING)
{
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
Al.alSourcePlay(alSource);
}
}
unsafe internal protected override void PostAttachVirtualChannel()
{
OpenALSoundWorld.criticalSection.Enter();
currentSound = (OpenALSound)CurrentVirtualChannel.Sound;
OpenALSampleSound sampleSound = currentSound as OpenALSampleSound;
OpenALDataBufferSound streamSound = null;
OpenALFileStreamSound fileStreamSound = null;
OpenALDataStreamSound dataStreamSound = null;
if (sampleSound == null)
{
streamSound = currentSound as OpenALDataBufferSound;
fileStreamSound = currentSound as OpenALFileStreamSound;
dataStreamSound = currentSound as OpenALDataStreamSound;
}
//create streamBuffer
if (fileStreamSound != null)
{
var stream = OpenALSoundWorld.CreateFileStream2(currentSound.Name);
if (stream == null)
{
//Log.Warning( string.Format( "Creating sound \"{0}\" failed.", currentSound.Name ) );
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
fileStreamVorbisFile = new VorbisFile.File();
fileStreamVorbisFileReader = new VorbisFileReader(stream, true);
if (!fileStreamVorbisFileReader.OpenVorbisFile(fileStreamVorbisFile))
{
//Log.Warning( string.Format( "Creating sound \"{0}\" failed.", currentSound.Name ) );
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
int numSamples = (int)fileStreamVorbisFile.pcm_total(-1);
fileStreamVorbisFile.get_info(-1, out var channels, out var frequency);
//int numSamples = (int)fileStreamSound.vorbisFile.pcm_total( -1 );
//fileStreamSound.vorbisFile.get_info( -1, out var channels, out var rate );
if (fileStreamSound.needConvertToMono)
{
channels = 1;
}
int sizeInBytes = numSamples * channels * 2;
int bufferSize = sizeInBytes / 2;
if (bufferSize > 65536 * 4)
{
bufferSize = 65536 * 4;
}
streamBufferSize = bufferSize;
streamBuffer = (byte *)NativeUtility.Alloc(NativeUtility.MemoryAllocationType.SoundAndVideo, streamBufferSize);
}
if (dataStreamSound != null)
{
streamBufferSize = dataStreamSound.bufferSize;
streamBuffer = (byte *)NativeUtility.Alloc(NativeUtility.MemoryAllocationType.SoundAndVideo, streamBufferSize);
}
//create al data buffers
if (fileStreamSound != null || dataStreamSound != null)
{
if (streamAlDataBuffers == null)
{
streamAlDataBuffers = new int[2];
fixed(int *pAlDataBuffers = streamAlDataBuffers)
Al.alGenBuffers(streamAlDataBuffers.Length, pAlDataBuffers);
if (OpenALSoundWorld.CheckError())
{
streamAlDataBuffers = null;
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
}
}
//init source
bool mode3d = (currentSound.Mode & SoundModes.Mode3D) != 0;
bool loop = (currentSound.Mode & SoundModes.Loop) != 0;
if (alSource == 0)
{
Al.alGenSources(1, out alSource);
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
}
if (sampleSound != null)
{
//no stream sound
Al.alSourcei(alSource, Al.AL_BUFFER, sampleSound.alBuffer);
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
}
if (fileStreamSound != null)
{
FileStreamStartPlay();
}
if (dataStreamSound != null)
{
DataStreamStartPlay();
}
Al.alSourcei(alSource, Al.AL_SOURCE_RELATIVE, mode3d ? Al.AL_FALSE : Al.AL_TRUE);
//update parameters
if (mode3d)
{
UpdatePosition2();
UpdateVelocity2();
}
else
{
UpdatePan2();
}
UpdatePitch2();
UpdateVolume2();
if (sampleSound != null)
{
Al.alSourcei(alSource, Al.AL_LOOPING, loop ? Al.AL_TRUE : Al.AL_FALSE);
}
else
{
Al.alSourcei(alSource, Al.AL_LOOPING, Al.AL_FALSE);
}
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
UpdateTime2();
//unpause
Al.alSourcePlay(alSource);
OpenALSoundWorld.CheckError();
//add to fileStreamChannels
if (fileStreamSound != null)
{
OpenALSoundWorld.fileStreamRealChannels.Add(this);
}
OpenALSoundWorld.criticalSection.Leave();
}
unsafe protected override void PostAttachVirtualChannel()
{
OpenALSoundWorld.criticalSection.Enter();
currentSound = (OpenALSound)CurrentVirtualChannel.CurrentSound;
OpenALSampleSound sampleSound = currentSound as OpenALSampleSound;
OpenALDataBufferSound streamSound = null;
OpenALFileStreamSound fileStreamSound = null;
OpenALDataStreamSound dataStreamSound = null;
if (sampleSound == null)
{
streamSound = currentSound as OpenALDataBufferSound;
fileStreamSound = currentSound as OpenALFileStreamSound;
dataStreamSound = currentSound as OpenALDataStreamSound;
}
//create streamBuffer
if (fileStreamSound != null)
{
int bufferSize = 0;
int numSamples = (int)fileStreamSound.vorbisFile.pcm_total(-1);
int channels;
int rate;
fileStreamSound.vorbisFile.get_info(-1, out channels, out rate);
if (fileStreamSound.needConvertToMono)
{
channels = 1;
}
int sizeInBytes = numSamples * channels * 2;
bufferSize = sizeInBytes / 2;
if (bufferSize > 65536 * 4)
{
bufferSize = 65536 * 4;
}
streamBufferSize = bufferSize;
streamBuffer = (byte *)NativeUtils.Alloc(NativeMemoryAllocationType.SoundAndVideo, streamBufferSize);
}
if (dataStreamSound != null)
{
streamBufferSize = dataStreamSound.bufferSize;
streamBuffer = (byte *)NativeUtils.Alloc(NativeMemoryAllocationType.SoundAndVideo,
streamBufferSize);
}
//init source
bool mode3d = (currentSound.Mode & SoundMode.Mode3D) != 0;
bool loop = (currentSound.Mode & SoundMode.Loop) != 0;
if (alSource == 0)
{
Al.alGenSources(1, out alSource);
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
}
if (sampleSound != null)
{
//no stream sound
Al.alSourcei(alSource, Al.AL_BUFFER, sampleSound.alBuffer);
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
}
if (fileStreamSound != null)
{
FileStreamStartPlay();
}
if (dataStreamSound != null)
{
DataStreamStartPlay();
}
Al.alSourcei(alSource, Al.AL_SOURCE_RELATIVE, mode3d ? Al.AL_FALSE : Al.AL_TRUE);
//update parameters
if (mode3d)
{
UpdatePosition2();
UpdateVelocity2();
}
else
{
UpdatePan2();
}
UpdatePitch2();
UpdateVolume2();
if (sampleSound != null)
{
Al.alSourcei(alSource, Al.AL_LOOPING, loop ? Al.AL_TRUE : Al.AL_FALSE);
}
else
{
Al.alSourcei(alSource, Al.AL_LOOPING, Al.AL_FALSE);
}
if (OpenALSoundWorld.CheckError())
{
PreDetachVirtualChannel();
OpenALSoundWorld.criticalSection.Leave();
return;
}
UpdateTime2();
//unpause
Al.alSourcePlay(alSource);
OpenALSoundWorld.CheckError();
//add to fileStreamChannels
if (fileStreamSound != null)
{
OpenALSoundWorld.Instance.fileStreamRealChannels.Add(this);
}
OpenALSoundWorld.criticalSection.Leave();
}
void UpdateTime2()
{
Al.alSourcef(alSource, Al.AL_SEC_OFFSET, CurrentVirtualChannel.Time);
OpenALSoundWorld.CheckError();
}
unsafe public OpenALSampleSound(VirtualFileStream stream, SoundType soundType, string name, SoundModes mode, out bool initialized)
{
initialized = false;
byte[] samples;
int sizeInBytes;
float timeLength;
if (string.Compare(Path.GetExtension(name), ".ogg", true) == 0)
{
//ogg
VorbisFileReader vorbisFileReader = new VorbisFileReader(stream, false);
VorbisFile.File vorbisFile = new VorbisFile.File();
if (!vorbisFileReader.OpenVorbisFile(vorbisFile))
{
vorbisFile.Dispose();
vorbisFileReader.Dispose();
Log.Warning("OpenALSoundSystem: Creating sound failed \"{0}\" (Reading failed).", name);
return;
}
int numSamples = (int)vorbisFile.pcm_total(-1);
vorbisFile.get_info(-1, out channels, out frequency);
timeLength = (float)vorbisFile.time_total(-1);
sizeInBytes = numSamples * channels * 2;
samples = new byte[sizeInBytes];
fixed(byte *pSamples = samples)
{
int samplePos = 0;
while (samplePos < sizeInBytes)
{
int readBytes = vorbisFile.read((IntPtr)(pSamples + samplePos), sizeInBytes - samplePos, 0, 2, 1, IntPtr.Zero);
if (readBytes <= 0)
{
break;
}
samplePos += readBytes;
}
}
vorbisFile.Dispose();
vorbisFileReader.Dispose();
}
else if (string.Compare(Path.GetExtension(name), ".wav", true) == 0)
{
//wav
string error;
if (!WavLoader.Load(stream, out channels, out frequency, out samples, out sizeInBytes, out error))
{
Log.Warning("OpenALSoundSystem: Creating sound failed \"{0}\" ({1}).", name, error);
return;
}
timeLength = (float)(samples.Length / channels / 2) / (float)frequency;
}
else
{
Log.Warning("OpenALSoundSystem: Creating sound failed \"{0}\" (Unknown file type).", name);
return;
}
//create buffer
Al.alGenBuffers(1, out alBuffer);
int alFormat = (channels == 1) ? Al.AL_FORMAT_MONO16 : Al.AL_FORMAT_STEREO16;
//bug fix: half volume mono 2D sounds
//convert to stereo
if ((mode & SoundModes.Mode3D) == 0 && alFormat == Al.AL_FORMAT_MONO16)
{
byte[] stereoSamples = new byte[sizeInBytes * 2];
for (int n = 0; n < sizeInBytes; n += 2)
{
stereoSamples[n * 2 + 0] = samples[n];
stereoSamples[n * 2 + 1] = samples[n + 1];
stereoSamples[n * 2 + 2] = samples[n];
stereoSamples[n * 2 + 3] = samples[n + 1];
}
samples = stereoSamples;
alFormat = Al.AL_FORMAT_STEREO16;
sizeInBytes *= 2;
}
//convert to mono for 3D
if ((mode & SoundModes.Mode3D) != 0 && channels == 2)
{
byte[] oldSamples = samples;
samples = new byte[oldSamples.Length / 2];
for (int n = 0; n < samples.Length; n += 2)
{
samples[n + 0] = oldSamples[n * 2 + 0];
samples[n + 1] = oldSamples[n * 2 + 1];
}
alFormat = Al.AL_FORMAT_MONO16;
sizeInBytes /= 2;
}
fixed(byte *pSamples = samples)
Al.alBufferData(alBuffer, alFormat, pSamples, sizeInBytes, frequency);
if (OpenALSoundWorld.CheckError())
{
Log.Warning("OpenALSoundSystem: Creating sound failed \"{0}\".", name);
return;
}
Init(name, mode, timeLength, channels, frequency);
initialized = true;
}
void UpdatePitch2()
{
Al.alSourcef(alSource, Al.AL_PITCH, CurrentVirtualChannel.GetTotalPitch());
OpenALSoundWorld.CheckError();
}
public void UpdateFileStreamFromThread()
{
if (currentSound == null)
{
return;
}
//update buffers
int processed;
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
OpenALSoundWorld.CheckError();
while (processed != 0)
{
int alStreamBuffer = 0;
Al.alSourceUnqueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
FileStream(alStreamBuffer);
if (streamDataAvailable)
{
Al.alSourceQueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
}
processed--;
}
//play if buffer stopped (from behind internal buffers processed)
int state;
Al.alGetSourcei(alSource, Al.AL_SOURCE_STATE, out state);
OpenALSoundWorld.CheckError();
bool stoppedNoQueued = false;
if (state == Al.AL_STOPPED)
{
int queued;
Al.alGetSourcei(alSource, Al.AL_BUFFERS_QUEUED, out queued);
if (queued != 0)
{
Al.alSourcePlay(alSource);
}
else
{
stoppedNoQueued = true;
}
}
//file stream played
OpenALFileStreamSound fileStreamSound = (OpenALFileStreamSound)currentSound;
if (!streamDataAvailable && stoppedNoQueued)
{
if ((currentSound.Mode & SoundMode.Loop) != 0)
{
//loop play. we need recreate vorbis file
//stop and unqueues sources
Al.alSourceStop(alSource);
Al.alGetSourcei(alSource, Al.AL_BUFFERS_PROCESSED, out processed);
OpenALSoundWorld.CheckError();
while (processed != 0)
{
int alStreamBuffer = 0;
Al.alSourceUnqueueBuffers(alSource, 1, ref alStreamBuffer);
OpenALSoundWorld.CheckError();
processed--;
}
//recreate vorbis file
fileStreamSound.Rewind();
FileStreamStartPlay();
//Pause = false;
Al.alSourcePlay(alSource);
OpenALSoundWorld.CheckError();
}
else
{
CurrentVirtualChannel.Stop();
}
}
}
protected override bool InitLibrary( IntPtr mainWindowHandle,
int maxReal2DChannels, int maxReal3DChannels )
{
instance = this;
NativeLibraryManager.PreLoadLibrary( "libogg" );
NativeLibraryManager.PreLoadLibrary( "libvorbis" );
NativeLibraryManager.PreLoadLibrary( "libvorbisfile" );
//preload OpenAL32
{
string fileName;
if( PlatformInfo.Platform == PlatformInfo.Platforms.Windows )
fileName = "OpenAL32.dll";
else if( PlatformInfo.Platform == PlatformInfo.Platforms.MacOSX )
fileName = "OpenAL32.dylib";
else if( PlatformInfo.Platform == PlatformInfo.Platforms.Android )
fileName = "libOpenAL32.so";
else
{
Log.Fatal( "OpenALSoundWorld: InitLibrary: Unknown platform." );
return false;
}
string path = Path.Combine( NativeLibraryManager.GetNativeLibrariesDirectory(), fileName );
if( File.Exists( path ) )
NativeLibraryManager.PreLoadLibrary( "OpenAL32" );
}
criticalSection = CriticalSection.Create();
if( PlatformInfo.Platform == PlatformInfo.Platforms.Android )
{
Alc.alcSetJNIEnvironmentAndJavaVM(
EngineApp.Instance._CallCustomPlatformSpecificMethod( "GetJNIEnvironment", IntPtr.Zero ),
EngineApp.Instance._CallCustomPlatformSpecificMethod( "GetJavaVM", IntPtr.Zero ) );
}
//string[] devices = Alc.alcGetStringv( IntPtr.Zero, Alc.ALC_DEVICE_SPECIFIER );
try
{
alDevice = Alc.alcOpenDevice( null );
}
catch( DllNotFoundException )
{
Log.InvisibleInfo( "OpenALSoundSystem: OpenAL not found." );
return false;
}
if( alDevice == IntPtr.Zero )
{
Log.InvisibleInfo( "OpenALSoundSystem: No sound driver." );
return false;
}
alContext = Alc.alcCreateContext( alDevice, IntPtr.Zero );
if( alContext == IntPtr.Zero )
{
Log.Error( "OpenALSoundSystem: Create context failed." );
return false;
}
Alc.alcMakeContextCurrent( alContext );
if( CheckError() )
return false;
//get captureDeviceName
try
{
captureDeviceName = Alc.alcGetString( alDevice, Alc.ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER );
}
catch { }
//Channels
realChannels = new List<OpenALRealChannel>();
for( int n = 0; n < maxReal2DChannels; n++ )
{
OpenALRealChannel realChannel = new OpenALRealChannel();
AddRealChannel( realChannel, false );
realChannels.Add( realChannel );
}
for( int n = 0; n < maxReal3DChannels; n++ )
{
OpenALRealChannel realChannel = new OpenALRealChannel();
AddRealChannel( realChannel, true );
realChannels.Add( realChannel );
}
fileStreamRealChannels = new List<OpenALRealChannel>();
thread = new Thread( new ThreadStart( ThreadFunction ) );
thread.CurrentCulture = new System.Globalization.CultureInfo( "en-US" );
thread.IsBackground = true;
thread.Start();
hWnd = mainWindowHandle;
Al.alDistanceModel( Al.AL_NONE );
return true;
}
protected override bool InitLibrary(IntPtr mainWindowHandle,
int maxReal2DChannels, int maxReal3DChannels)
{
instance = this;
NativeLibraryManager.PreLoadLibrary("libogg");
NativeLibraryManager.PreLoadLibrary("libvorbis");
NativeLibraryManager.PreLoadLibrary("libvorbisfile");
//preload OpenAL32
{
string fileName;
if (PlatformInfo.Platform == PlatformInfo.Platforms.Windows)
{
fileName = "OpenAL32.dll";
}
else if (PlatformInfo.Platform == PlatformInfo.Platforms.MacOSX)
{
fileName = "OpenAL32.dylib";
}
else if (PlatformInfo.Platform == PlatformInfo.Platforms.Android)
{
fileName = "libOpenAL32.so";
}
else
{
Log.Fatal("OpenALSoundWorld: InitLibrary: Unknown platform.");
return(false);
}
string path = Path.Combine(NativeLibraryManager.GetNativeLibrariesDirectory(), fileName);
if (File.Exists(path))
{
NativeLibraryManager.PreLoadLibrary("OpenAL32");
}
}
criticalSection = CriticalSection.Create();
if (PlatformInfo.Platform == PlatformInfo.Platforms.Android)
{
Alc.alcSetJNIEnvironmentAndJavaVM(
EngineApp.Instance._CallCustomPlatformSpecificMethod("GetJNIEnvironment", IntPtr.Zero),
EngineApp.Instance._CallCustomPlatformSpecificMethod("GetJavaVM", IntPtr.Zero));
}
//string[] devices = Alc.alcGetStringv( IntPtr.Zero, Alc.ALC_DEVICE_SPECIFIER );
try
{
alDevice = Alc.alcOpenDevice(null);
}
catch (DllNotFoundException)
{
Log.InvisibleInfo("OpenALSoundSystem: OpenAL not found.");
return(false);
}
if (alDevice == IntPtr.Zero)
{
Log.InvisibleInfo("OpenALSoundSystem: No sound driver.");
return(false);
}
alContext = Alc.alcCreateContext(alDevice, IntPtr.Zero);
if (alContext == IntPtr.Zero)
{
Log.Error("OpenALSoundSystem: Create context failed.");
return(false);
}
Alc.alcMakeContextCurrent(alContext);
if (CheckError())
{
return(false);
}
//get captureDeviceName
try
{
captureDeviceName = Alc.alcGetString(alDevice, Alc.ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER);
}
catch { }
//Channels
realChannels = new List <OpenALRealChannel>();
for (int n = 0; n < maxReal2DChannels; n++)
{
OpenALRealChannel realChannel = new OpenALRealChannel();
AddRealChannel(realChannel, false);
realChannels.Add(realChannel);
}
for (int n = 0; n < maxReal3DChannels; n++)
{
OpenALRealChannel realChannel = new OpenALRealChannel();
AddRealChannel(realChannel, true);
realChannels.Add(realChannel);
}
fileStreamRealChannels = new List <OpenALRealChannel>();
thread = new Thread(new ThreadStart(ThreadFunction));
thread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
thread.IsBackground = true;
thread.Start();
hWnd = mainWindowHandle;
Al.alDistanceModel(Al.AL_NONE);
return(true);
}
protected override void ShutdownLibrary()
{
if( thread != null )
{
needAbortThread = true;
Thread.Sleep( 50 );
thread.Abort();
}
if( realChannels != null )
{
foreach( OpenALRealChannel realChannel in realChannels )
{
if( realChannel.alSource != 0 )
{
Al.alDeleteSources( 1, ref realChannel.alSource );
realChannel.alSource = 0;
}
}
}
try
{
Alc.alcMakeContextCurrent( IntPtr.Zero );
Alc.alcDestroyContext( alContext );
Alc.alcCloseDevice( alDevice );
}
catch { }
if( realChannels != null )
{
realChannels.Clear();
realChannels = null;
}
if( criticalSection != null )
{
criticalSection.Dispose();
criticalSection = null;
}
instance = null;
}