//
bool LoadSamplesFromStream(VirtualFileStream stream, SoundType soundType,
out int channels, out int frequency, out float timeLength, out string error)
{
channels = 0;
frequency = 0;
timeLength = 0;
error = null;
switch (soundType)
{
case SoundType.OGG:
{
VorbisFileReader vorbisFileReader = new VorbisFileReader(stream, false);
VorbisFile.File vorbisFile = new VorbisFile.File();
if (!vorbisFileReader.OpenVorbisFile(vorbisFile))
{
vorbisFile.Dispose();
vorbisFileReader.Dispose();
error = "Reading failed";
return(false);
}
int numSamples = (int)vorbisFile.pcm_total(-1);
vorbisFile.get_info(-1, out channels, out frequency);
timeLength = (float)vorbisFile.time_total(-1);
int size = numSamples * channels;
int sizeInBytes = size * 2;
soundSamples = new byte[sizeInBytes];
unsafe
{
fixed(byte *pSoundSamples = soundSamples)
{
int samplePos = 0;
while (samplePos < sizeInBytes)
{
int readBytes = vorbisFile.read((IntPtr)(pSoundSamples + samplePos),
sizeInBytes - samplePos, 0, 2, 1, IntPtr.Zero);
if (readBytes <= 0)
{
break;
}
samplePos += readBytes;
}
}
}
vorbisFile.Dispose();
vorbisFileReader.Dispose();
}
return(true);
case SoundType.WAV:
{
int sizeInBytes;
if (!WavLoader.Load(stream, out channels, out frequency, out soundSamples,
out sizeInBytes, out error))
{
return(false);
}
timeLength = (float)(soundSamples.Length / channels / 2) / (float)frequency;
}
return(true);
}
error = "Unknown file type";
return(false);
}
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;
}
unsafe public OpenALSampleSound( VirtualFileStream stream, SoundType soundType, string name,
SoundMode 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 & SoundMode.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 & SoundMode.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;
}
//
bool LoadSamplesFromStream( VirtualFileStream stream, SoundType soundType,
out int channels, out int frequency, out float timeLength, out string error )
{
channels = 0;
frequency = 0;
timeLength = 0;
error = null;
switch( soundType )
{
case SoundType.OGG:
{
VorbisFileReader vorbisFileReader = new VorbisFileReader( stream, false );
VorbisFile.File vorbisFile = new VorbisFile.File();
if( !vorbisFileReader.OpenVorbisFile( vorbisFile ) )
{
vorbisFile.Dispose();
vorbisFileReader.Dispose();
error = "Reading failed";
return false;
}
int numSamples = (int)vorbisFile.pcm_total( -1 );
vorbisFile.get_info( -1, out channels, out frequency );
timeLength = (float)vorbisFile.time_total( -1 );
int size = numSamples * channels;
int sizeInBytes = size * 2;
soundSamples = new byte[ sizeInBytes ];
unsafe
{
fixed( byte* pSoundSamples = soundSamples )
{
int samplePos = 0;
while( samplePos < sizeInBytes )
{
int readBytes = vorbisFile.read( (IntPtr)( pSoundSamples + samplePos ),
sizeInBytes - samplePos, 0, 2, 1, IntPtr.Zero );
if( readBytes <= 0 )
break;
samplePos += readBytes;
}
}
}
vorbisFile.Dispose();
vorbisFileReader.Dispose();
}
return true;
case SoundType.WAV:
{
int sizeInBytes;
if( !WavLoader.Load( stream, out channels, out frequency, out soundSamples,
out sizeInBytes, out error ) )
{
return false;
}
timeLength = (float)( soundSamples.Length / channels / 2 ) / (float)frequency;
}
return true;
}
error = "Unknown file type";
return false;
}