/*
===================
idSoundSample::Load
Loads based on name, possibly doing a MakeDefault if necessary
===================
*/
void idSoundSample::Load( void ) {
defaultSound = false;
purged = false;
hardwareBuffer = false;
timestamp = GetNewTimeStamp();
if( timestamp == FILE_NOT_FOUND_TIMESTAMP ) {
common->DWarning( "Couldn't load sound '%s' using default", name.c_str() );
MakeDefault();
return;
}
// load it
idWaveFile fh;
waveformatex_t info;
if( fh.Open( name, &info ) == -1 ) {
common->DWarning( "Couldn't load sound '%s' using default", name.c_str() );
MakeDefault();
return;
}
if( info.nChannels != 1 && info.nChannels != 2 ) {
common->Warning( "idSoundSample: %s has %i channels, using default", name.c_str(), info.nChannels );
fh.Close();
MakeDefault();
return;
}
if( info.wBitsPerSample != 16 ) {
common->Warning( "idSoundSample: %s is %dbits, expected 16bits using default", name.c_str(), info.wBitsPerSample );
fh.Close();
MakeDefault();
return;
}
if( info.nSamplesPerSec != 44100 && info.nSamplesPerSec != 22050 && info.nSamplesPerSec != 11025 ) {
common->Warning( "idSoundCache: %s is %dHz, expected 11025, 22050 or 44100 Hz. Using default", name.c_str(), info.nSamplesPerSec );
fh.Close();
MakeDefault();
return;
}
objectInfo = info;
objectSize = fh.GetOutputSize();
objectMemSize = fh.GetMemorySize();
nonCacheData = ( byte * )soundCacheAllocator.Alloc( objectMemSize );
fh.Read( nonCacheData, objectMemSize, NULL );
// optionally convert it to 22kHz to save memory
CheckForDownSample();
// create hardware audio buffers
if( idSoundSystemLocal::useOpenAL ) {
// PCM loads directly
if( objectInfo.wFormatTag == WAVE_FORMAT_TAG_PCM ) {
alGetError();
alGenBuffers( 1, &openalBuffer );
if( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error generating OpenAL hardware buffer" );
}
if( alIsBuffer( openalBuffer ) ) {
alGetError();
alBufferData( openalBuffer, objectInfo.nChannels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16, nonCacheData, objectMemSize, objectInfo.nSamplesPerSec );
if( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error loading data into OpenAL hardware buffer" );
} else {
hardwareBuffer = true;
}
}
}
// OGG decompressed at load time (when smaller than s_decompressionLimit seconds, 6 seconds by default)
if( objectInfo.wFormatTag == WAVE_FORMAT_TAG_OGG ) {
#if defined(MACOS_X)
if( ( objectSize < ( ( int ) objectInfo.nSamplesPerSec * idSoundSystemLocal::s_decompressionLimit.GetInteger() ) ) ) {
#else
if( ( alIsExtensionPresent( ID_ALCHAR "EAX-RAM" ) == AL_TRUE ) && ( objectSize < ( ( int ) objectInfo.nSamplesPerSec * idSoundSystemLocal::s_decompressionLimit.GetInteger() ) ) ) {
#endif
alGetError();
alGenBuffers( 1, &openalBuffer );
if( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error generating OpenAL hardware buffer" );
}
if( alIsBuffer( openalBuffer ) ) {
idSampleDecoder *decoder = idSampleDecoder::Alloc();
float *destData = ( float * )soundCacheAllocator.Alloc( ( LengthIn44kHzSamples() + 1 ) * sizeof( float ) );
// Decoder *always* outputs 44 kHz data
decoder->Decode( this, 0, LengthIn44kHzSamples(), destData );
// Downsample back to original frequency (save memory)
if( objectInfo.nSamplesPerSec == 11025 ) {
for( int i = 0; i < objectSize; i++ ) {
if( destData[i * 4] < -32768.0f ) {
( ( short * )destData )[i] = -32768;
} else if( destData[i * 4] > 32767.0f ) {
( ( short * )destData )[i] = 32767;
} else {
( ( short * )destData )[i] = idMath::FtoiFast( destData[i * 4] );
}
}
} else if( objectInfo.nSamplesPerSec == 22050 ) {
for( int i = 0; i < objectSize; i++ ) {
if( destData[i * 2] < -32768.0f ) {
( ( short * )destData )[i] = -32768;
} else if( destData[i * 2] > 32767.0f ) {
( ( short * )destData )[i] = 32767;
} else {
( ( short * )destData )[i] = idMath::FtoiFast( destData[i * 2] );
}
}
} else {
for( int i = 0; i < objectSize; i++ ) {
if( destData[i] < -32768.0f ) {
( ( short * )destData )[i] = -32768;
} else if( destData[i] > 32767.0f ) {
( ( short * )destData )[i] = 32767;
} else {
( ( short * )destData )[i] = idMath::FtoiFast( destData[i] );
}
}
}
alGetError();
alBufferData( openalBuffer, objectInfo.nChannels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16, destData, objectSize * sizeof( short ), objectInfo.nSamplesPerSec );
if( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error loading data into OpenAL hardware buffer" );
} else {
hardwareBuffer = true;
}
soundCacheAllocator.Free( ( byte * )destData );
idSampleDecoder::Free( decoder );
}
}
}
}
fh.Close();
}
/*
===================
idSoundSample::PurgeSoundSample
===================
*/
void idSoundSample::PurgeSoundSample() {
purged = true;
if( hardwareBuffer && idSoundSystemLocal::useOpenAL ) {
alGetError();
alDeleteBuffers( 1, &openalBuffer );
if( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error unloading data from OpenAL hardware buffer" );
} else {
openalBuffer = 0;
hardwareBuffer = false;
}
}
if( amplitudeData ) {
soundCacheAllocator.Free( amplitudeData );
amplitudeData = NULL;
}
if( nonCacheData ) {
soundCacheAllocator.Free( nonCacheData );
nonCacheData = NULL;
}
}
/*
===================
idSoundSample::Load
Loads based on name, possibly doing a MakeDefault if necessary
===================
*/
void idSoundSample::Load( void ) {
defaultSound = false;
purged = false;
hardwareBuffer = false;
timestamp = GetNewTimeStamp();
if ( timestamp == FILE_NOT_FOUND_TIMESTAMP ) {
common->Warning( "Couldn't load sound '%s' using default", name.c_str() );
MakeDefault();
return;
}
// load it
idWaveFile fh;
waveformatex_t info;
if ( fh.Open( name, &info ) == -1 ) {
common->Warning( "Couldn't load sound '%s' using default", name.c_str() );
MakeDefault();
return;
}
if ( info.nChannels != 1 && info.nChannels != 2 ) {
common->Warning( "idSoundSample: %s has %i channels, using default", name.c_str(), info.nChannels );
fh.Close();
MakeDefault();
return;
}
if ( info.wBitsPerSample != 16 ) {
common->Warning( "idSoundSample: %s is %dbits, expected 16bits using default", name.c_str(), info.wBitsPerSample );
fh.Close();
MakeDefault();
return;
}
if ( info.nSamplesPerSec != 44100 && info.nSamplesPerSec != 22050 && info.nSamplesPerSec != 11025 ) {
common->Warning( "idSoundCache: %s is %dHz, expected 11025, 22050 or 44100 Hz. Using default", name.c_str(), info.nSamplesPerSec );
fh.Close();
MakeDefault();
return;
}
objectInfo = info;
objectSize = fh.GetOutputSize();
objectMemSize = fh.GetMemorySize();
nonCacheData = (byte *)soundCacheAllocator.Alloc( objectMemSize );
fh.Read( nonCacheData, objectMemSize, NULL );
// optionally convert it to 22kHz to save memory
CheckForDownSample();
// create hardware audio buffers
// PCM loads directly
if ( objectInfo.wFormatTag == WAVE_FORMAT_TAG_PCM ) {
alGetError();
alGenBuffers( 1, &openalBuffer );
if ( alGetError() != AL_NO_ERROR )
common->Error( "idSoundCache: error generating OpenAL hardware buffer" );
if ( alIsBuffer( openalBuffer ) ) {
alGetError();
alBufferData( openalBuffer, objectInfo.nChannels==1?AL_FORMAT_MONO16:AL_FORMAT_STEREO16, nonCacheData, objectMemSize, objectInfo.nSamplesPerSec );
if ( alGetError() != AL_NO_ERROR ) {
common->Error( "idSoundCache: error loading data into OpenAL hardware buffer" );
} else {
// Compute amplitude block size
int blockSize = 512 * objectInfo.nSamplesPerSec / 44100 ;
// Allocate amplitude data array
amplitudeData = (byte *)soundCacheAllocator.Alloc( ( objectSize / blockSize + 1 ) * 2 * sizeof( short) );
// Creating array of min/max amplitude pairs per blockSize samples
int i;
for ( i = 0; i < objectSize; i+=blockSize ) {
short min = 32767;
short max = -32768;
int j;
for ( j = 0; j < Min( objectSize - i, blockSize ); j++ ) {
min = ((short *)nonCacheData)[ i + j ] < min ? ((short *)nonCacheData)[ i + j ] : min;
max = ((short *)nonCacheData)[ i + j ] > max ? ((short *)nonCacheData)[ i + j ] : max;
}
((short *)amplitudeData)[ ( i / blockSize ) * 2 ] = min;
((short *)amplitudeData)[ ( i / blockSize ) * 2 + 1 ] = max;
}
hardwareBuffer = true;
}
}
// OGG decompressed at load time (when smaller than s_decompressionLimit seconds, 6 seconds by default)
if ( objectInfo.wFormatTag == WAVE_FORMAT_TAG_OGG ) {
if ( ( objectSize < ( ( int ) objectInfo.nSamplesPerSec * idSoundSystemLocal::s_decompressionLimit.GetInteger() ) ) ) {
alGetError();
alGenBuffers( 1, &openalBuffer );
if ( alGetError() != AL_NO_ERROR )
common->Error( "idSoundCache: error generating OpenAL hardware buffer" );
if ( alIsBuffer( openalBuffer ) ) {
idSampleDecoder *decoder = idSampleDecoder::Alloc();
float *destData = (float *)soundCacheAllocator.Alloc( ( LengthIn44kHzSamples() + 1 ) * sizeof( float ) );
// Decoder *always* outputs 44 kHz data
decoder->Decode( this, 0, LengthIn44kHzSamples(), destData );
// Downsample back to original frequency (save memory)
if ( objectInfo.nSamplesPerSec == 11025 ) {
for ( int i = 0; i < objectSize; i++ ) {
if ( destData[i*4] < -32768.0f )
((short *)destData)[i] = -32768;
else if ( destData[i*4] > 32767.0f )
((short *)destData)[i] = 32767;
else
((short *)destData)[i] = idMath::FtoiFast( destData[i*4] );
}
} else if ( objectInfo.nSamplesPerSec == 22050 ) {
for ( int i = 0; i < objectSize; i++ ) {
if ( destData[i*2] < -32768.0f )
((short *)destData)[i] = -32768;
else if ( destData[i*2] > 32767.0f )
((short *)destData)[i] = 32767;
else
((short *)destData)[i] = idMath::FtoiFast( destData[i*2] );
}
} else {
for ( int i = 0; i < objectSize; i++ ) {
if ( destData[i] < -32768.0f )
((short *)destData)[i] = -32768;
else if ( destData[i] > 32767.0f )
((short *)destData)[i] = 32767;
else
((short *)destData)[i] = idMath::FtoiFast( destData[i] );
}
}
alGetError();
alBufferData( openalBuffer, objectInfo.nChannels==1?AL_FORMAT_MONO16:AL_FORMAT_STEREO16, destData, objectSize * sizeof( short ), objectInfo.nSamplesPerSec );
if ( alGetError() != AL_NO_ERROR )
common->Error( "idSoundCache: error loading data into OpenAL hardware buffer" );
else {
// Compute amplitude block size
int blockSize = 512 * objectInfo.nSamplesPerSec / 44100 ;
// Allocate amplitude data array
amplitudeData = (byte *)soundCacheAllocator.Alloc( ( objectSize / blockSize + 1 ) * 2 * sizeof( short ) );
// Creating array of min/max amplitude pairs per blockSize samples
int i;
for ( i = 0; i < objectSize; i+=blockSize ) {
short min = 32767;
short max = -32768;
int j;
for ( j = 0; j < Min( objectSize - i, blockSize ); j++ ) {
min = ((short *)destData)[ i + j ] < min ? ((short *)destData)[ i + j ] : min;
max = ((short *)destData)[ i + j ] > max ? ((short *)destData)[ i + j ] : max;
}
((short *)amplitudeData)[ ( i / blockSize ) * 2 ] = min;
((short *)amplitudeData)[ ( i / blockSize ) * 2 + 1 ] = max;
}
hardwareBuffer = true;
}
soundCacheAllocator.Free( (byte *)destData );
idSampleDecoder::Free( decoder );
}
}
}
// Free memory if sample was loaded into hardware
if ( hardwareBuffer ) {
soundCacheAllocator.Free( nonCacheData );
nonCacheData = NULL;
}
}
fh.Close();
}
