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some more ASIO stuff

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This commit is contained in:
Volker Fischer 2007-12-19 20:16:50 +00:00
parent 4889a1d378
commit 74cb27d2bc
2 changed files with 356 additions and 361 deletions
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685
windows/sound.cpp
View file

@ -47,10 +47,8 @@ bool CSound::Read ( CVector<short>& psData )
// check if device must be opened or reinitialized
if ( bChangParamIn == TRUE )
{
OpenInDevice();
// Reinit sound interface
InitRecording ( iBufferSizeIn, bBlockingRec );
InitRecordingAndPlayback ( iBufferSize );
// Reset flag
bChangParamIn = FALSE;
@ -98,7 +96,7 @@ bool CSound::Read ( CVector<short>& psData )
*/
// copy data from sound card in output buffer
for ( i = 0; i < iBufferSizeIn; i++ )
for ( i = 0; i < iBufferSize; i++ )
{
psData[i] = psSoundcardBuffer[iWhichBufferIn][i];
}
@ -147,106 +145,6 @@ void CSound::PrepareInBuffer ( int iBufNum )
*/
}
void CSound::InitRecording ( int iNewBufferSize, bool bNewBlocking )
{
// check if device must be opened or reinitialized
if ( bChangParamIn == TRUE )
{
OpenInDevice();
// reset flag
bChangParamIn = FALSE;
}
// set internal parameter
iBufferSizeIn = iNewBufferSize;
bBlockingRec = bNewBlocking;
/*
// reset interface so that all buffers are returned from the interface
waveInReset ( m_WaveIn );
waveInStop ( m_WaveIn );
*/
// reset current buffer ID (it is important to do this BEFORE calling
// "AddInBuffer()"
iWhichBufferIn = 0;
// create memory for sound card buffer
for ( int i = 0; i < iCurNumSndBufIn; i++ )
{
/*
// Unprepare old wave-header in case that we "re-initialized" this
// module. Calling "waveInUnprepareHeader()" with an unprepared
// buffer (when the module is initialized for the first time) has
// simply no effect
waveInUnprepareHeader ( m_WaveIn, &m_WaveInHeader[i], sizeof ( WAVEHDR ) );
*/
if ( psSoundcardBuffer[i] != NULL )
{
delete[] psSoundcardBuffer[i];
}
psSoundcardBuffer[i] = new short[iBufferSizeIn];
/* Send all buffers to driver for filling the queue ----------------- */
// prepare buffers before sending them to the sound interface
PrepareInBuffer ( i );
AddInBuffer();
}
/*
// notify that sound capturing can start now
waveInStart ( m_WaveIn );
*/
// This reset event is very important for initialization, otherwise we will
// get errors!
ResetEvent ( m_WaveInEvent );
}
void CSound::OpenInDevice()
{
/*
// open wave-input and set call-back mechanism to event handle
if ( m_WaveIn != NULL )
{
waveInReset ( m_WaveIn );
waveInClose ( m_WaveIn );
}
MMRESULT result = waveInOpen ( &m_WaveIn, iCurInDev, &sWaveFormatEx,
(DWORD) m_WaveInEvent, NULL, CALLBACK_EVENT );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface Start, waveInOpen() failed. This error "
"usually occurs if another application blocks the sound in." );
}
*/
}
void CSound::SetInDev ( int iNewDev )
{
/*
// set device to wave mapper if iNewDev is invalid
if ( ( iNewDev >= iNumDevs ) || ( iNewDev < 0 ) )
{
iNewDev = WAVE_MAPPER;
}
*/
// change only in case new device id is not already active
if ( iNewDev != iCurInDev )
{
iCurInDev = iNewDev;
bChangParamIn = TRUE;
}
}
void CSound::SetInNumBuf ( int iNewNum )
{
// check new parameter
@ -277,10 +175,8 @@ bool CSound::Write ( CVector<short>& psData )
// check if device must be opened or reinitialized
if ( bChangParamOut == TRUE )
{
OpenOutDevice();
// reinit sound interface
InitPlayback ( iBufferSizeOut, bBlockingPlay );
InitRecordingAndPlayback ( iBufferSize );
// reset flag
bChangParamOut = FALSE;
@ -292,24 +188,14 @@ bool CSound::Write ( CVector<short>& psData )
// now check special cases (Buffer is full or empty)
if ( iCntPrepBuf == 0 )
{
if ( bBlockingPlay == TRUE )
/* Blocking wave out routine. Needed for transmitter. Always
ensure that the buffer is completely filled to avoid buffer
underruns */
while ( iCntPrepBuf == 0 )
{
/* Blocking wave out routine. Needed for transmitter. Always
ensure that the buffer is completely filled to avoid buffer
underruns */
while ( iCntPrepBuf == 0 )
{
WaitForSingleObject ( m_WaveOutEvent, INFINITE );
WaitForSingleObject ( m_WaveOutEvent, INFINITE );
GetDoneBuffer ( iCntPrepBuf, iIndexDoneBuf );
}
}
else
{
/* All buffers are filled, dump new block ----------------------- */
// It would be better to kill half of the buffer blocks to set the start
// back to the middle: TODO
return TRUE; // an error occurred
GetDoneBuffer ( iCntPrepBuf, iIndexDoneBuf );
}
}
else
@ -323,7 +209,7 @@ bool CSound::Write ( CVector<short>& psData )
for ( j = 0; j < iCurNumSndBufOut / 2; j++ )
{
// first, clear these buffers
for ( i = 0; i < iBufferSizeOut; i++ )
for ( i = 0; i < iBufferSize; i++ )
{
psPlaybackBuffer[j][i] = 0;
}
@ -344,7 +230,7 @@ bool CSound::Write ( CVector<short>& psData )
}
// copy stereo data from input in soundcard buffer
for ( i = 0; i < iBufferSizeOut; i++ )
for ( i = 0; i < iBufferSize; i++ )
{
psPlaybackBuffer[iIndexDoneBuf][i] = psData[i];
}
@ -399,95 +285,6 @@ void CSound::PrepareOutBuffer ( int iBufNum )
*/
}
void CSound::InitPlayback ( int iNewBufferSize, bool bNewBlocking )
{
int i, j;
// check if device must be opened or reinitialized
if ( bChangParamOut == TRUE )
{
OpenOutDevice();
// reset flag
bChangParamOut = FALSE;
}
// set internal parameters
iBufferSizeOut = iNewBufferSize;
bBlockingPlay = bNewBlocking;
/*
// reset interface
waveOutReset ( m_WaveOut );
*/
for ( j = 0; j < iCurNumSndBufOut; j++ )
{
/*
// Unprepare old wave-header (in case header was not prepared before,
// simply nothing happens with this function call
waveOutUnprepareHeader ( m_WaveOut, &m_WaveOutHeader[j], sizeof ( WAVEHDR ) );
*/
// create memory for playback buffer
if ( psPlaybackBuffer[j] != NULL )
{
delete[] psPlaybackBuffer[j];
}
psPlaybackBuffer[j] = new short[iBufferSizeOut];
// clear new buffer
for ( i = 0; i < iBufferSizeOut; i++ )
{
psPlaybackBuffer[j][i] = 0;
}
// prepare buffer for sending to the sound interface
PrepareOutBuffer ( j );
// initially, send all buffers to the interface
AddOutBuffer ( j );
}
}
void CSound::OpenOutDevice()
{
/*
if ( m_WaveOut != NULL )
{
waveOutReset ( m_WaveOut );
waveOutClose ( m_WaveOut );
}
MMRESULT result = waveOutOpen ( &m_WaveOut, iCurOutDev, &sWaveFormatEx,
(DWORD) m_WaveOutEvent, NULL, CALLBACK_EVENT );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface Start, waveOutOpen() failed." );
}
*/
}
void CSound::SetOutDev ( int iNewDev )
{
/*
// set device to wave mapper if iNewDev is invalid
if ( ( iNewDev >= iNumDevs ) || ( iNewDev < 0 ) )
{
iNewDev = WAVE_MAPPER;
}
*/
// change only in case new device id is not already active
if ( iNewDev != iCurOutDev )
{
iCurOutDev = iNewDev;
bChangParamOut = TRUE;
}
}
void CSound::SetOutNumBuf ( int iNewNum )
{
// check new parameter
@ -508,35 +305,128 @@ void CSound::SetOutNumBuf ( int iNewNum )
/******************************************************************************\
* Common *
\******************************************************************************/
void CSound::Close()
void CSound::InitRecordingAndPlayback ( int iNewBufferSize )
{
int i;
int i, j;
// first, stop audio
ASIOStop();
// set internal parameters
iBufferSize = iNewBufferSize;
/*
MMRESULT result;
// reset audio driver
if ( m_WaveOut != NULL )
{
result = waveOutReset ( m_WaveOut );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveOutReset() failed." );
}
}
if ( m_WaveIn != NULL )
{
result = waveInReset ( m_WaveIn );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveInReset() failed." );
}
}
// reset interface so that all buffers are returned from the interface
waveInReset ( m_WaveIn );
waveInStop ( m_WaveIn );
*/
// reset current buffer ID (it is important to do this BEFORE calling
// "AddInBuffer()"
iWhichBufferIn = 0;
// create memory for sound card buffer
for ( i = 0; i < iCurNumSndBufIn; i++ )
{
/*
// Unprepare old wave-header in case that we "re-initialized" this
// module. Calling "waveInUnprepareHeader()" with an unprepared
// buffer (when the module is initialized for the first time) has
// simply no effect
waveInUnprepareHeader ( m_WaveIn, &m_WaveInHeader[i], sizeof ( WAVEHDR ) );
*/
if ( psSoundcardBuffer[i] != NULL )
{
delete[] psSoundcardBuffer[i];
}
psSoundcardBuffer[i] = new short[iBufferSize];
/* Send all buffers to driver for filling the queue ----------------- */
// prepare buffers before sending them to the sound interface
PrepareInBuffer ( i );
AddInBuffer();
}
/*
// notify that sound capturing can start now
waveInStart ( m_WaveIn );
*/
// This reset event is very important for initialization, otherwise we will
// get errors!
ResetEvent ( m_WaveInEvent );
// TODO this should be done in the setinoutbuf functions
// create and activate buffers
// ASIOCreateBuffers(bufferInfos, 2 * NUM_IN_OUT_CHANNELS,
// iBufferSizeIn * 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++ )
{
channelInfos[i].channel = NUM_IN_OUT_CHANNELS;
channelInfos[i].isInput = bufferInfos[i].isInput;
ASIOGetChannelInfo ( &channelInfos[i] );
}
/*
// reset interface
waveOutReset ( m_WaveOut );
*/
for ( j = 0; j < iCurNumSndBufOut; j++ )
{
/*
// Unprepare old wave-header (in case header was not prepared before,
// simply nothing happens with this function call
waveOutUnprepareHeader ( m_WaveOut, &m_WaveOutHeader[j], sizeof ( WAVEHDR ) );
*/
// create memory for playback buffer
if ( psPlaybackBuffer[j] != NULL )
{
delete[] psPlaybackBuffer[j];
}
psPlaybackBuffer[j] = new short[iBufferSize];
// clear new buffer
for ( i = 0; i < iBufferSize; i++ )
{
psPlaybackBuffer[j][i] = 0;
}
// prepare buffer for sending to the sound interface
PrepareOutBuffer ( j );
// initially, send all buffers to the interface
AddOutBuffer ( j );
}
// initialization is done, (re)start audio
ASIOStart();
}
void CSound::Close()
{
// set event to ensure that thread leaves the waiting function
if ( m_WaveInEvent != NULL )
{
@ -546,53 +436,6 @@ void CSound::Close()
// wait for the thread to terminate
Sleep ( 500 );
/*
// unprepare wave-headers
if ( m_WaveIn != NULL )
{
for ( i = 0; i < iCurNumSndBufIn; i++ )
{
result = waveInUnprepareHeader (
m_WaveIn, &m_WaveInHeader[i], sizeof ( WAVEHDR ) );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveInUnprepareHeader()"
" failed." );
}
}
// close the sound in device
result = waveInClose ( m_WaveIn );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveInClose() failed." );
}
}
if ( m_WaveOut != NULL )
{
for ( i = 0; i < iCurNumSndBufOut; i++ )
{
result = waveOutUnprepareHeader (
m_WaveOut, &m_WaveOutHeader[i], sizeof ( WAVEHDR ) );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveOutUnprepareHeader()"
" failed." );
}
}
// close the sound out device
result = waveOutClose ( m_WaveOut );
if ( result != MMSYSERR_NOERROR )
{
throw CGenErr ( "Sound Interface, waveOutClose() failed." );
}
}
*/
// set flag to open devices the next time it is initialized
bChangParamIn = TRUE;
bChangParamOut = TRUE;
@ -606,44 +449,9 @@ CSound::CSound()
iCurNumSndBufIn = NUM_SOUND_BUFFERS_IN;
iCurNumSndBufOut = NUM_SOUND_BUFFERS_OUT;
/*
// should be initialized because an error can occur during init
m_WaveInEvent = NULL;
m_WaveOutEvent = NULL;
m_WaveIn = NULL;
m_WaveOut = NULL;
*/
// init buffer pointer to zero
for ( i = 0; i < MAX_SND_BUF_IN; i++ )
{
/*
memset ( &m_WaveInHeader[i], 0, sizeof ( WAVEHDR ) );
*/
psSoundcardBuffer[i] = NULL;
}
for ( i = 0; i < MAX_SND_BUF_OUT; i++ )
{
/*
memset ( &m_WaveOutHeader[i], 0, sizeof ( WAVEHDR ) );
*/
psPlaybackBuffer[i] = NULL;
}
/*
// init wave-format structure
sWaveFormatEx.wFormatTag = WAVE_FORMAT_PCM;
sWaveFormatEx.nChannels = NUM_IN_OUT_CHANNELS;
sWaveFormatEx.wBitsPerSample = BITS_PER_SAMPLE;
sWaveFormatEx.nSamplesPerSec = SND_CRD_SAMPLE_RATE;
sWaveFormatEx.nBlockAlign = sWaveFormatEx.nChannels *
sWaveFormatEx.wBitsPerSample / 8;
sWaveFormatEx.nAvgBytesPerSec = sWaveFormatEx.nBlockAlign *
sWaveFormatEx.nSamplesPerSec;
sWaveFormatEx.cbSize = 0;
*/
// get available ASIO driver names in system
char* cDriverNames[MAX_NUMBER_SOUND_CARDS];
@ -692,49 +500,94 @@ pstrDevices[0] = driverInfo.name;
// TEST !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ASIOExit();
/*
// get info about the devices and store the names
for ( i = 0; i < iNumDevs; i++ )
// check the number of available channels
long lNumInChan;
long lNumOutChan;
ASIOGetChannels ( &lNumInChan, &lNumOutChan );
if ( ( lNumInChan != NUM_IN_OUT_CHANNELS ) || ( lNumOutChan != NUM_IN_OUT_CHANNELS ) )
{
if ( !waveInGetDevCaps ( i, &m_WaveInDevCaps, sizeof ( WAVEINCAPS ) ) )
{
pstrDevices[i] = m_WaveInDevCaps.szPname;
}
throw CGenErr ( "The audio device does not support required number of channels." );
}
// check the usable buffer sizes
long lMinSize;
long lMaxSize;
long lPreferredSize;
long lGranularity;
ASIOGetBufferSize ( &lMinSize, &lMaxSize, &lPreferredSize, &lGranularity );
// TODO make use of the information...
// set the sample rate and check if sample rate is supported
ASIOSetSampleRate ( SND_CRD_SAMPLE_RATE );
ASIOSampleRate sampleRate;
ASIOGetSampleRate ( &sampleRate );
if ( sampleRate != SND_CRD_SAMPLE_RATE )
{
throw CGenErr ( "The audio device does not support required sample rate." );
}
// check wether the driver requires the ASIOOutputReady() optimization
// (can be used by the driver to reduce output latency by one block)
bASIOPostOutput = ( ASIOOutputReady() == ASE_OK );
// set up the asioCallback structure and create the ASIO data buffer
asioCallbacks.bufferSwitch = &bufferSwitch;
asioCallbacks.sampleRateDidChange = &sampleRateChanged;
asioCallbacks.asioMessage = &asioMessages;
asioCallbacks.bufferSwitchTimeInfo = &bufferSwitchTimeInfo;
// prepare input channels
for ( i = 0; i < NUM_IN_OUT_CHANNELS; i++ )
{
bufferInfos[i].isInput = ASIOTrue;
bufferInfos[i].channelNum = i;
bufferInfos[i].buffers[0] = 0;
bufferInfos[i].buffers[1] = 0;
}
// prepare output channels
for ( i = 0; i < NUM_IN_OUT_CHANNELS; i++ )
{
bufferInfos[NUM_IN_OUT_CHANNELS + i].isInput = ASIOFalse;
bufferInfos[NUM_IN_OUT_CHANNELS + i].channelNum = i;
bufferInfos[NUM_IN_OUT_CHANNELS + i].buffers[0] = 0;
bufferInfos[NUM_IN_OUT_CHANNELS + i].buffers[1] = 0;
}
// init buffer pointer to zero
for ( i = 0; i < MAX_SND_BUF_IN; i++ )
{
psSoundcardBuffer[i] = NULL;
}
for ( i = 0; i < MAX_SND_BUF_OUT; i++ )
{
psPlaybackBuffer[i] = NULL;
}
*/
// we use an event controlled wave-in (wave-out) structure
// create events
m_WaveInEvent = CreateEvent ( NULL, FALSE, FALSE, NULL );
m_WaveInEvent = CreateEvent ( NULL, FALSE, FALSE, NULL );
m_WaveOutEvent = CreateEvent ( NULL, FALSE, FALSE, NULL );
// set flag to open devices
bChangParamIn = TRUE;
bChangParamOut = TRUE;
/*
// default device number, "wave mapper"
iCurInDev = WAVE_MAPPER;
iCurOutDev = WAVE_MAPPER;
*/
// non-blocking wave out is default
bBlockingPlay = FALSE;
// blocking wave in is default
bBlockingRec = TRUE;
}
CSound::~CSound()
{
int i;
// cleanup ASIO stuff
ASIOStop();
ASIODisposeBuffers();
ASIOExit();
asioDrivers->removeCurrentDriver();
// delete allocated memory
for ( i = 0; i < iCurNumSndBufIn; i++ )
{
@ -766,6 +619,144 @@ CSound::~CSound()
*/
}
// ASIO callbacks -------------------------------------------------------------
ASIOTime* CSound::bufferSwitchTimeInfo ( ASIOTime *timeInfo, long index, ASIOBool processNow )
{
/*
static long processedSamples = 0;
// store the timeInfo for later use
asioDriverInfo.tInfo = *timeInfo;
// get the time stamp of the buffer, not necessary if no
// synchronization to other media is required
if (timeInfo->timeInfo.flags & kSystemTimeValid)
asioDriverInfo.nanoSeconds = ASIO64toDouble(timeInfo->timeInfo.systemTime);
else
asioDriverInfo.nanoSeconds = 0;
if (timeInfo->timeInfo.flags & kSamplePositionValid)
asioDriverInfo.samples = ASIO64toDouble(timeInfo->timeInfo.samplePosition);
else
asioDriverInfo.samples = 0;
if (timeInfo->timeCode.flags & kTcValid)
asioDriverInfo.tcSamples = ASIO64toDouble(timeInfo->timeCode.timeCodeSamples);
else
asioDriverInfo.tcSamples = 0;
// get the system reference time
asioDriverInfo.sysRefTime = get_sys_reference_time();
#if WINDOWS && _DEBUG
// a few debug messages for the Windows device driver developer
// tells you the time when driver got its interrupt and the delay until the app receives
// the event notification.
static double last_samples = 0;
char tmp[128];
sprintf (tmp, "diff: %d / %d ms / %d ms / %d samples \n", asioDriverInfo.sysRefTime - (long)(asioDriverInfo.nanoSeconds / 1000000.0), asioDriverInfo.sysRefTime, (long)(asioDriverInfo.nanoSeconds / 1000000.0), (long)(asioDriverInfo.samples - last_samples));
OutputDebugString (tmp);
last_samples = asioDriverInfo.samples;
#endif
// buffer size in samples
long buffSize = asioDriverInfo.preferredSize;
// perform the processing
for (int i = 0; i < asioDriverInfo.inputBuffers + asioDriverInfo.outputBuffers; i++)
{
if (asioDriverInfo.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;
}
}
}
// finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place
if (asioDriverInfo.postOutput)
ASIOOutputReady();
if (processedSamples >= asioDriverInfo.sampleRate * TEST_RUN_TIME) // roughly measured
asioDriverInfo.stopped = true;
else
processedSamples += buffSize;
*/
return 0L;
}
void CSound::bufferSwitch( long index, ASIOBool processNow )
{
}
long CSound::asioMessages ( long selector, long value, void* message, double* opt )
{
long ret = 0;
switch(selector)
{
case kAsioEngineVersion:
// return the supported ASIO version of the host application
ret = 2L;
break;
}
return ret;
}
#else // USE_ASIO_SND_INTERFACE
/******************************************************************************\

32
windows/sound.h
View file

@ -71,17 +71,17 @@ public:
CSound();
virtual ~CSound();
void InitRecording ( int iNewBufferSize, bool bNewBlocking = TRUE );
void InitPlayback ( int iNewBufferSize, bool bNewBlocking = FALSE );
void InitRecording ( int iNewBufferSize, bool bNewBlocking = TRUE ) { InitRecordingAndPlayback ( iNewBufferSize ); }
void InitPlayback ( int iNewBufferSize, bool bNewBlocking = FALSE ) { InitRecordingAndPlayback ( iNewBufferSize ); }
bool Read ( CVector<short>& psData );
bool Write ( CVector<short>& psData );
int GetNumDev() { return iNumDevs; }
std::string GetDeviceName ( int iDiD ) { return pstrDevices[iDiD]; }
void SetOutDev ( int iNewDev );
int GetOutDev() { return iCurOutDev; }
void SetInDev ( int iNewDev );
int GetInDev() { return iCurInDev; }
void SetOutDev ( int iNewDev ) {} // not supported
int GetOutDev() { return 0; } // not supported
void SetInDev ( int iNewDev ) {} // not supported
int GetInDev() { return 0; } // not supported
void SetOutNumBuf ( int iNewNum );
int GetOutNumBuf() { return iCurNumSndBufOut; }
void SetInNumBuf ( int iNewNum );
@ -90,8 +90,7 @@ public:
void Close();
protected:
void OpenInDevice();
void OpenOutDevice();
void InitRecordingAndPlayback ( int iNewBufferSize );
void PrepareInBuffer ( int iBufNum );
void PrepareOutBuffer ( int iBufNum );
void AddInBuffer();
@ -100,29 +99,34 @@ protected:
// 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;
// callbacks
static void bufferSwitch ( long index, ASIOBool processNow );
static ASIOTime* bufferSwitchTimeInfo ( ASIOTime *timeInfo, long index, ASIOBool processNow );
static void sampleRateChanged ( ASIOSampleRate sRate ) {}
static long asioMessages ( long selector, long value, void* message, double* opt );
int iNumDevs;
std::string pstrDevices[MAX_NUMBER_SOUND_CARDS];
int iCurInDev;
int iCurOutDev;
bool bChangParamIn;
bool bChangParamOut;
int iCurNumSndBufIn;
int iCurNumSndBufOut;
int iBufferSize;
// wave in
HANDLE m_WaveInEvent;
int iBufferSizeIn;
int iWhichBufferIn;
short* psSoundcardBuffer[MAX_SND_BUF_IN];
bool bBlockingRec;
// wave out
int iBufferSizeOut;
short* psPlaybackBuffer[MAX_SND_BUF_OUT];
HANDLE m_WaveOutEvent;
bool bBlockingPlay;
};
#else // USE_ASIO_SND_INTERFACE