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some more ASIO work

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This commit is contained in:
Volker Fischer 2008-07-11 21:06:15 +00:00
parent 2d368f6ace
commit 90fbd027eb
2 changed files with 39 additions and 87 deletions
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117
windows/sound.cpp
View File

@ -35,6 +35,14 @@
extern AsioDrivers* asioDrivers;
bool loadAsioDriver ( char *name );
// ASIO stuff
ASIODriverInfo driverInfo;
ASIOBufferInfo bufferInfos[2 * NUM_IN_OUT_CHANNELS]; // for input and output buffers -> "2 *"
ASIOChannelInfo channelInfos[2 * NUM_IN_OUT_CHANNELS];
bool bASIOPostOutput;
ASIOCallbacks asioCallbacks;
int iBufferSize;
/******************************************************************************\
* Wave in *
@ -384,8 +392,8 @@ void CSound::InitRecordingAndPlayback ( int iNewBufferSize )
}
// create and activate buffers
ASIOCreateBuffers(bufferInfos, 2 * NUM_IN_OUT_CHANNELS,
iBufferSize * BYTES_PER_SAMPLE, &asioCallbacks);
ASIOCreateBuffers ( bufferInfos, 2 * NUM_IN_OUT_CHANNELS,
iBufferSize * BYTES_PER_SAMPLE, &asioCallbacks );
// now set all the buffer details
for ( i = 0; i < 2 * NUM_IN_OUT_CHANNELS; i++ )
@ -692,94 +700,47 @@ ASIOTime* CSound::bufferSwitchTimeInfo ( ASIOTime *timeInfo, long index, ASIOBoo
void CSound::bufferSwitch ( long index, ASIOBool processNow )
{
static long processedSamples = 0;
/*
// buffer size in samples
// long buffSize = asioDriverInfo.preferredSize;
long buffSize = iBufferSize * BYTES_PER_SAMPLE;
// perform the processing
for ( int i = 0; i < asioDriverInfo.inputBuffers + asioDriverInfo.outputBuffers; i++ )
// perform the processing for input and output
for ( int i = 0; i < 2 * NUM_IN_OUT_CHANNELS; i++ )
{
if ( asioDriverInfo.bufferInfos[i].isInput == false )
// only 16 bit is supported
if ( channelInfos[i].type != ASIOSTInt16LSB )
{
// TODO fire error
}
if ( bufferInfos[i].isInput == false )
{
// OK do processing for the outputs only
switch ( asioDriverInfo.channelInfos[i].type )
{
case ASIOSTInt16LSB:
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 2 );
break;
case ASIOSTInt24LSB: // used for 20 bits as well
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 3 );
break;
case ASIOSTInt32LSB:
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 8 );
break;
// these are used for 32 bit data buffer, with different alignment of the data inside
// 32 bit PCI bus systems can more easily used with these
case ASIOSTInt32LSB16: // 32 bit data with 18 bit alignment
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
case ASIOSTInt16MSB:
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 2 );
break;
case ASIOSTInt24MSB: // used for 20 bits as well
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 3 );
break;
case ASIOSTInt32MSB:
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 8 );
break;
// these are used for 32 bit data buffer, with different alignment of the data inside
// 32 bit PCI bus systems can more easily used with these
case ASIOSTInt32MSB16: // 32 bit data with 18 bit alignment
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
memset ( asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 4 );
break;
}
// TODO the following is just a test code
memset ( bufferInfos[i].buffers[index], 0, buffSize * 2 );
}
else
{
// TEST
static FILE* pFile = fopen ( "test.dat", "w" );
for ( int iIdx = 0; iIdx < buffSize * 2; iIdx++ )
{
fprintf ( pFile, "%d\n", ((short*) bufferInfos[i].buffers[index])[iIdx] );
}
fflush ( pFile );
// TODO
}
}
// finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place
if ( asioDriverInfo.postOutput )
// finally if the driver supports the ASIOOutputReady() optimization,
// do it here, all data are in place
if ( bASIOPostOutput )
{
ASIOOutputReady();
}
if ( processedSamples >= asioDriverInfo.sampleRate * TEST_RUN_TIME ) // roughly measured
{
asioDriverInfo.stopped = true;
}
else
{
processedSamples += buffSize;
}
*/
}
long CSound::asioMessages ( long selector, long value, void* message, double* opt )

9
windows/sound.h
View File

@ -97,13 +97,6 @@ protected:
void AddOutBuffer ( int iBufNum );
void GetDoneBuffer ( int& iCntPrepBuf, int& iIndexDoneBuf );
// ASIO stuff
ASIODriverInfo driverInfo;
ASIOBufferInfo bufferInfos[2 * NUM_IN_OUT_CHANNELS]; // for input and output buffers -> "2 *"
ASIOChannelInfo channelInfos[2 * NUM_IN_OUT_CHANNELS];
bool bASIOPostOutput;
ASIOCallbacks asioCallbacks;
// audio hardware buffer info
struct sHWBufferInfo
{
@ -126,8 +119,6 @@ protected:
int iCurNumSndBufIn;
int iCurNumSndBufOut;
int iBufferSize;
// wave in
HANDLE m_WaveInEvent;
int iWhichBufferIn;