void AudioSndio::run( void )
{
surroundSampleFrame * temp =
new surroundSampleFrame[mixer()->framesPerPeriod()];
int_sample_t * outbuf =
new int_sample_t[mixer()->framesPerPeriod() * channels()];
while( TRUE )
{
const fpp_t frames = getNextBuffer( temp );
if( !frames )
{
break;
}
uint bytes = convertToS16( temp, frames,
mixer()->masterGain(), outbuf, FALSE );
if( sio_write( m_hdl, outbuf, bytes ) != bytes )
{
break;
}
}
delete[] temp;
delete[] outbuf;
}
void AudioOss::run()
{
surroundSampleFrame * temp =
new surroundSampleFrame[mixer()->framesPerPeriod()];
int_sample_t * outbuf =
new int_sample_t[mixer()->framesPerPeriod() *
channels()];
while( true )
{
const fpp_t frames = getNextBuffer( temp );
if( !frames )
{
break;
}
int bytes = convertToS16( temp, frames,
mixer()->masterGain(), outbuf,
m_convertEndian );
if( write( m_audioFD, outbuf, bytes ) != bytes )
{
break;
}
}
delete[] temp;
delete[] outbuf;
}
bool ObjectDataIStream::getNextBuffer( uint32_t* compressor, uint32_t* nChunks,
const void** chunkData, uint64_t* size )
{
const Command* command = getNextCommand();
if( !command )
return false;
const ObjectDataPacket* packet = command->get< ObjectDataPacket >();
LBASSERT( packet->command == CMD_OBJECT_INSTANCE ||
packet->command == CMD_OBJECT_DELTA ||
packet->command == CMD_OBJECT_SLAVE_DELTA );
if( packet->dataSize == 0 ) // empty packet
return getNextBuffer( compressor, nChunks, chunkData, size );
*size = packet->dataSize;
*compressor = packet->compressorName;
*nChunks = packet->nChunks;
*size = packet->dataSize;
switch( packet->command )
{
case CMD_OBJECT_INSTANCE:
*chunkData = command->get< ObjectInstancePacket >()->data;
break;
case CMD_OBJECT_DELTA:
*chunkData = command->get< ObjectDeltaPacket >()->data;
break;
case CMD_OBJECT_SLAVE_DELTA:
*chunkData = command->get< ObjectSlaveDeltaPacket >()->data;
break;
}
return true;
}
command result_t StdControl.start() {
uint8_t *rxBuffer = getNextBuffer(&receiveBufferSet);
call BulkTxRx.BulkReceive(rxBuffer, RXLINELEN);
return SUCCESS;
}
int AudioPortAudio::process_callback(
const float *_inputBuffer,
float * _outputBuffer,
unsigned long _framesPerBuffer )
{
if( supportsCapture() )
{
mixer()->pushInputFrames( (sampleFrame*)_inputBuffer,
_framesPerBuffer );
}
if( m_stopped )
{
memset( _outputBuffer, 0, _framesPerBuffer *
channels() * sizeof(float) );
return paComplete;
}
while( _framesPerBuffer )
{
if( m_outBufPos == 0 )
{
// frames depend on the sample rate
const fpp_t frames = getNextBuffer( m_outBuf );
if( !frames )
{
m_stopped = true;
m_stopSemaphore.release();
memset( _outputBuffer, 0, _framesPerBuffer *
channels() * sizeof(float) );
return paComplete;
}
m_outBufSize = frames;
}
const int min_len = qMin( (int)_framesPerBuffer,
m_outBufSize - m_outBufPos );
float master_gain = mixer()->masterGain();
for( fpp_t frame = 0; frame < min_len; ++frame )
{
for( ch_cnt_t chnl = 0; chnl < channels(); ++chnl )
{
( _outputBuffer + frame * channels() )[chnl] =
Mixer::clip( m_outBuf[frame][chnl] *
master_gain );
}
}
_outputBuffer += min_len * channels();
_framesPerBuffer -= min_len;
m_outBufPos += min_len;
m_outBufPos %= m_outBufSize;
}
return paContinue;
}
int16* waitForFreeBuffer (Thread& threadToCheck)
{
while (numBlocksOut.get() == numBuffers)
{
dataArrived.wait (1);
if (threadToCheck.threadShouldExit())
return nullptr;
}
return getNextBuffer();
}
void AudioSoundIo::writeCallback(int frameCountMin, int frameCountMax)
{
const struct SoundIoChannelLayout *layout = &m_outstream->layout;
SoundIoChannelArea *areas;
int bytesPerSample = m_outstream->bytes_per_sample;
int err;
const float gain = mixer()->masterGain();
int framesLeft = frameCountMax;
while (framesLeft > 0)
{
int frameCount = framesLeft;
if ((err = soundio_outstream_begin_write(m_outstream, &areas, &frameCount)))
{
errorCallback(err);
return;
}
if (!frameCount)
break;
for (int frame = 0; frame < frameCount; frame += 1)
{
if (m_outBufFrameIndex >= m_outBufFramesTotal)
{
m_outBufFramesTotal = getNextBuffer(m_outBuf);
m_outBufFrameIndex = 0;
}
for (int channel = 0; channel < layout->channel_count; channel += 1)
{
float sample = gain * m_outBuf[m_outBufFrameIndex][channel];
memcpy(areas[channel].ptr, &sample, bytesPerSample);
areas[channel].ptr += areas[channel].step;
}
m_outBufFrameIndex += 1;
}
if ((err = soundio_outstream_end_write(m_outstream)))
{
errorCallback(err);
return;
}
framesLeft -= frameCount;
}
}
bool DataIStream::_checkBuffer()
{
while( _impl->position >= _impl->inputSize )
{
uint32_t compressor = EQ_COMPRESSOR_NONE;
uint32_t nChunks = 0;
const void* data = 0;
if( !getNextBuffer( compressor, nChunks, &data, _impl->inputSize ))
return false;
_impl->input = _decompress( data, compressor, nChunks,
_impl->inputSize );
_impl->position = 0;
}
return true;
}
void*
kma_malloc(kma_size_t size)
{
if (debug) printf("\nREQUEST %i\n", size);
if (entryPoint == 0) {
entryPoint = getEntryPoint();
}
int adjustedSize = size + sizeof(buffer);
int bufferSize = getBufferSize(adjustedSize);
freeListInfo* freeList = getFreeList(bufferSize);
if (freeList == NULL) {
return NULL;
}
getSpaceIfNeeded(freeList, bufferSize);
return getNextBuffer(freeList);
}
bool DataIStream::_checkBuffer()
{
while (_impl->position >= _impl->inputSize)
{
CompressorInfo info;
uint32_t nChunks = 0;
const void* data = 0;
_impl->position = 0;
_impl->input = 0;
_impl->inputSize = 0;
if (!getNextBuffer(info, nChunks, data, _impl->inputSize))
return false;
_impl->input = _decompress(data, info, nChunks, _impl->inputSize);
}
return true;
}
bool ObjectDataIStream::getNextBuffer( uint32_t& compressor, uint32_t& nChunks,
const void** chunkData, uint64_t& size )
{
if( _commands.empty( ))
{
_usedCommand.clear();
return false;
}
_usedCommand = _commands.front();
_commands.pop_front();
if( !_usedCommand.isValid( ))
return false;
LBASSERT( _usedCommand.getCommand() == CMD_OBJECT_INSTANCE ||
_usedCommand.getCommand() == CMD_OBJECT_DELTA ||
_usedCommand.getCommand() == CMD_OBJECT_SLAVE_DELTA );
ObjectDataICommand command( _usedCommand );
const uint64_t dataSize = command.getDataSize();
if( dataSize == 0 ) // empty command
return getNextBuffer( compressor, nChunks, chunkData, size );
size = dataSize;
compressor = command.getCompressor();
nChunks = command.getChunks();
switch( command.getCommand( ))
{
case CMD_OBJECT_INSTANCE:
command.get< NodeID >(); // nodeID
command.get< uint32_t >(); // instanceID
break;
case CMD_OBJECT_SLAVE_DELTA:
command.get< UUID >(); // commit UUID
break;
}
*chunkData = command.getRemainingBuffer( command.getRemainingBufferSize( ));
setSwapping( command.isSwapping( ));
return true;
}
void AudioSdl::sdlAudioCallback( Uint8 * _buf, int _len )
{
if( m_stopped )
{
memset( _buf, 0, _len );
return;
}
while( _len )
{
if( m_convertedBufPos == 0 )
{
// frames depend on the sample rate
const fpp_t frames = getNextBuffer( m_outBuf );
if( !frames )
{
m_stopped = true;
m_stopSemaphore.release();
memset( _buf, 0, _len );
return;
}
m_convertedBufSize = frames * channels()
* sizeof( int_sample_t );
convertToS16( m_outBuf, frames,
mixer()->masterGain(),
(int_sample_t *)m_convertedBuf,
m_convertEndian );
}
const int min_len = qMin( _len, m_convertedBufSize
- m_convertedBufPos );
memcpy( _buf, m_convertedBuf + m_convertedBufPos, min_len );
_buf += min_len;
_len -= min_len;
m_convertedBufPos += min_len;
m_convertedBufPos %= m_convertedBufSize;
}
}
void AudioAlsa::run()
{
surroundSampleFrame * temp =
new surroundSampleFrame[mixer()->framesPerPeriod()];
int_sample_t * outbuf =
new int_sample_t[mixer()->framesPerPeriod() *
channels()];
int_sample_t * pcmbuf = new int_sample_t[m_periodSize * channels()];
int outbuf_size = mixer()->framesPerPeriod() * channels();
int outbuf_pos = 0;
int pcmbuf_size = m_periodSize * channels();
bool quit = false;
while( quit == false )
{
int_sample_t * ptr = pcmbuf;
int len = pcmbuf_size;
while( len )
{
if( outbuf_pos == 0 )
{
// frames depend on the sample rate
const fpp_t frames = getNextBuffer( temp );
if( !frames )
{
quit = true;
memset( ptr, 0, len
* sizeof( int_sample_t ) );
break;
}
outbuf_size = frames * channels();
convertToS16( temp, frames,
mixer()->masterGain(),
outbuf,
m_convertEndian );
}
int min_len = qMin( len, outbuf_size - outbuf_pos );
memcpy( ptr, outbuf + outbuf_pos,
min_len * sizeof( int_sample_t ) );
ptr += min_len;
len -= min_len;
outbuf_pos += min_len;
outbuf_pos %= outbuf_size;
}
f_cnt_t frames = m_periodSize;
ptr = pcmbuf;
while( frames )
{
int err = snd_pcm_writei( m_handle, ptr, frames );
if( err == -EAGAIN )
{
continue;
}
if( err < 0 )
{
if( handleError( err ) < 0 )
{
printf( "Write error: %s\n",
snd_strerror( err ) );
}
break; // skip this buffer
}
ptr += err * channels();
frames -= err;
}
}
delete[] temp;
delete[] outbuf;
delete[] pcmbuf;
}
int AudioJack::processCallback( jack_nframes_t _nframes, void * _udata )
{
for( int c = 0; c < channels(); ++c )
{
m_tempOutBufs[c] =
(jack_default_audio_sample_t *) jack_port_get_buffer(
m_outputPorts[c], _nframes );
}
#ifdef AUDIO_PORT_SUPPORT
const int frames = qMin<int>( _nframes, mixer()->framesPerPeriod() );
for( jackPortMap::iterator it = m_portMap.begin();
it != m_portMap.end(); ++it )
{
for( ch_cnt_t ch = 0; ch < channels(); ++ch )
{
if( it.data().ports[ch] == NULL )
{
continue;
}
jack_default_audio_sample_t * buf =
(jack_default_audio_sample_t *) jack_port_get_buffer(
it.data().ports[ch],
_nframes );
for( int frame = 0; frame < frames; ++frame )
{
buf[frame] = it.key()->firstBuffer()[frame][ch];
}
}
}
#endif
jack_nframes_t done = 0;
while( done < _nframes && m_stopped == false )
{
jack_nframes_t todo = qMin<jack_nframes_t>(
_nframes,
m_framesToDoInCurBuf -
m_framesDoneInCurBuf );
const float gain = mixer()->masterGain();
for( int c = 0; c < channels(); ++c )
{
jack_default_audio_sample_t * o = m_tempOutBufs[c];
for( jack_nframes_t frame = 0; frame < todo; ++frame )
{
o[done+frame] = m_outBuf[m_framesDoneInCurBuf+frame][c] * gain;
}
}
done += todo;
m_framesDoneInCurBuf += todo;
if( m_framesDoneInCurBuf == m_framesToDoInCurBuf )
{
m_framesToDoInCurBuf = getNextBuffer( m_outBuf );
if( !m_framesToDoInCurBuf )
{
m_stopped = true;
m_stopSemaphore.release();
}
m_framesDoneInCurBuf = 0;
}
}
if( m_stopped == true )
{
for( int c = 0; c < channels(); ++c )
{
jack_default_audio_sample_t * b = m_tempOutBufs[c] + done;
memset( b, 0, sizeof( *b ) * ( _nframes - done ) );
}
}
return 0;
}
