From 9828ceec816d5f16f69d51e1e1f2512f1e44d04e Mon Sep 17 00:00:00 2001 From: Volker Fischer Date: Fri, 19 Mar 2010 20:23:31 +0000 Subject: [PATCH] put ASIO member variables in class, prepared for ASIO input/output channel selection --- windows/sound.cpp | 1035 +++++++++++++++++++++++---------------------- windows/sound.h | 33 +- 2 files changed, 557 insertions(+), 511 deletions(-) diff --git a/windows/sound.cpp b/windows/sound.cpp index cdf13c91..421bde3b 100755 --- a/windows/sound.cpp +++ b/windows/sound.cpp @@ -33,24 +33,7 @@ extern AsioDrivers* asioDrivers; bool loadAsioDriver ( char *name ); -// TODO the following variables should be in the class definition but we cannot -// do it here since we have static callback functions which cannot access the -// class members :-((( - -// 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 iASIOBufferSizeMono; -int iASIOBufferSizeStereo; - -CVector vecsTmpAudioSndCrdStereo; - -QMutex ASIOMutex; - -// TEST +// pointer to our sound object CSound* pSound; @@ -115,7 +98,7 @@ QString CSound::SetDev ( const int iNewDev ) // the first available driver in the system. If this fails, too, we // throw an error that no driver is available -> it does not make // sense to start the llcon software if no audio hardware is - // available + // available. if ( !LoadAndInitializeDriver ( iNewDev ).isEmpty() ) { // loading and initializing the new driver failed, try to find @@ -257,43 +240,58 @@ QString CSound::CheckDeviceCapabilities() // return error string return tr ( "The audio device does not support the " "required number of channels. The required number of channels " - "is: " ) + QString().setNum ( NUM_IN_OUT_CHANNELS ); + "for input and output is: " ) + + QString().setNum ( NUM_IN_OUT_CHANNELS ); } - // check sample format - for ( int i = 0; i < 2 * NUM_IN_OUT_CHANNELS; i++ ) + // clip number of input/output channels to our maximum + if ( lNumInChan > MAX_NUM_IN_OUT_CHANNELS ) { - // check all used input and output channels - channelInfos[i].channel = i % NUM_IN_OUT_CHANNELS; - if ( i < NUM_IN_OUT_CHANNELS ) - { - channelInfos[i].isInput = ASIOTrue; - } - else - { - channelInfos[i].isInput = ASIOFalse; - } - ASIOGetChannelInfo ( &channelInfos[i] ); + lNumInChan = MAX_NUM_IN_OUT_CHANNELS; + } + if ( lNumOutChan > MAX_NUM_IN_OUT_CHANNELS ) + { + lNumOutChan = MAX_NUM_IN_OUT_CHANNELS; + } - // check supported sample formats - if ( ( channelInfos[i].type != ASIOSTInt16LSB ) && - ( channelInfos[i].type != ASIOSTInt24LSB ) && - ( channelInfos[i].type != ASIOSTInt32LSB ) && - ( channelInfos[i].type != ASIOSTFloat32LSB ) && - ( channelInfos[i].type != ASIOSTFloat64LSB ) && - ( channelInfos[i].type != ASIOSTInt32LSB16 ) && - ( channelInfos[i].type != ASIOSTInt32LSB18 ) && - ( channelInfos[i].type != ASIOSTInt32LSB20 ) && - ( channelInfos[i].type != ASIOSTInt32LSB24 ) && - ( channelInfos[i].type != ASIOSTInt16MSB ) && - ( channelInfos[i].type != ASIOSTInt24MSB ) && - ( channelInfos[i].type != ASIOSTInt32MSB ) && - ( channelInfos[i].type != ASIOSTFloat32MSB ) && - ( channelInfos[i].type != ASIOSTFloat64MSB ) && - ( channelInfos[i].type != ASIOSTInt32MSB16 ) && - ( channelInfos[i].type != ASIOSTInt32MSB18 ) && - ( channelInfos[i].type != ASIOSTInt32MSB20 ) && - ( channelInfos[i].type != ASIOSTInt32MSB24 ) ) + // query channel infos for all available input channels + for ( int i = 0; i < lNumInChan; i++ ) + { + // setup for input channels + channelInfosInput[i].isInput = ASIOTrue; + channelInfosInput[i].channel = i; + + ASIOGetChannelInfo ( &channelInfosInput[i] ); + + // Check supported sample formats. + // Actually, it would be enough to have at least two channels which + // support the required sample format. But since we have support for + // all known sample types, the following check should always pass and + // therefore we throw the error message on any channel which does not + // fullfill the sample format requirement (quick hack solution). + if ( !CheckSampleTypeSupported ( channelInfosInput[i].type ) ) + { + // return error string + return tr ( "Required audio sample format not available." ); + } + } + + // query channel infos for all available output channels + for ( int i = 0; i < lNumOutChan; i++ ) + { + // setup for output channels + channelInfosOutput[i].isInput = ASIOFalse; + channelInfosOutput[i].channel = i; + + ASIOGetChannelInfo ( &channelInfosOutput[i] ); + + // Check supported sample formats. + // Actually, it would be enough to have at least two channels which + // support the required sample format. But since we have support for + // all known sample types, the following check should always pass and + // therefore we throw the error message on any channel which does not + // fullfill the sample format requirement (quick hack solution). + if ( !CheckSampleTypeSupported ( channelInfosOutput[i].type ) ) { // return error string return tr ( "Required audio sample format not available." ); @@ -435,6 +433,24 @@ int CSound::Init ( const int iNewPrefMonoBufferSize ) // create and activate ASIO buffers (buffer size in samples), // dispose old buffers (if any) ASIODisposeBuffers(); + + // init buffer infos, we always want to have two input and + // two output channels + for ( int i = 0; i < NUM_IN_OUT_CHANNELS; i++ ) + { + // prepare input channels + bufferInfos[i].isInput = ASIOTrue; + bufferInfos[i].channelNum = vSelectedInputChannels[i]; + bufferInfos[i].buffers[0] = 0; + bufferInfos[i].buffers[1] = 0; + + // prepare output channels + bufferInfos[NUM_IN_OUT_CHANNELS + i].isInput = ASIOFalse; + bufferInfos[NUM_IN_OUT_CHANNELS + i].channelNum = vSelectedOutputChannels[i]; + bufferInfos[NUM_IN_OUT_CHANNELS + i].buffers[0] = 0; + bufferInfos[NUM_IN_OUT_CHANNELS + i].buffers[1] = 0; + } + ASIOCreateBuffers ( bufferInfos, 2 /* in/out */ * NUM_IN_OUT_CHANNELS /* stereo */, iASIOBufferSizeMono, &asioCallbacks ); @@ -467,13 +483,14 @@ void CSound::Stop() } CSound::CSound ( void (*fpNewCallback) ( CVector& psData, void* arg ), void* arg ) : - CSoundBase ( true, fpNewCallback, arg ) + CSoundBase ( true, fpNewCallback, arg ), + vSelectedInputChannels ( NUM_IN_OUT_CHANNELS ), + vSelectedOutputChannels ( NUM_IN_OUT_CHANNELS ) { int i; -// TEST -pSound = this; - + // init pointer to our sound object + pSound = this; // get available ASIO driver names in system for ( i = 0; i < MAX_NUMBER_SOUND_CARDS; i++ ) @@ -500,22 +517,12 @@ pSound = this; // init device index with illegal value to show that driver is not initialized lCurDev = -1; - // init buffer infos, we always want to have two input and - // two output channels - for ( i = 0; i < NUM_IN_OUT_CHANNELS; i++ ) - { - // prepare input channels - bufferInfos[i].isInput = ASIOTrue; - bufferInfos[i].channelNum = i; - bufferInfos[i].buffers[0] = 0; - bufferInfos[i].buffers[1] = 0; - - // prepare output channels - 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 selected channel numbers with defaults: use first available + // channels for input and output + vSelectedInputChannels[0] = 0; + vSelectedInputChannels[1] = 1; + vSelectedOutputChannels[0] = 0; + vSelectedOutputChannels[1] = 1; // set up the asioCallback structure asioCallbacks.bufferSwitch = &bufferSwitch; @@ -542,465 +549,485 @@ ASIOTime* CSound::bufferSwitchTimeInfo ( ASIOTime* timeInfo, return 0L; } +bool CSound::CheckSampleTypeSupported ( const ASIOSampleType SamType ) +{ + // check for supported sample types + return ( ( SamType == ASIOSTInt16LSB ) || + ( SamType == ASIOSTInt24LSB ) || + ( SamType == ASIOSTInt32LSB ) || + ( SamType == ASIOSTFloat32LSB ) || + ( SamType == ASIOSTFloat64LSB ) || + ( SamType == ASIOSTInt32LSB16 ) || + ( SamType == ASIOSTInt32LSB18 ) || + ( SamType == ASIOSTInt32LSB20 ) || + ( SamType == ASIOSTInt32LSB24 ) || + ( SamType == ASIOSTInt16MSB ) || + ( SamType == ASIOSTInt24MSB ) || + ( SamType == ASIOSTInt32MSB ) || + ( SamType == ASIOSTFloat32MSB ) || + ( SamType == ASIOSTFloat64MSB ) || + ( SamType == ASIOSTInt32MSB16 ) || + ( SamType == ASIOSTInt32MSB18 ) || + ( SamType == ASIOSTInt32MSB20 ) || + ( SamType == ASIOSTInt32MSB24 ) ); +} + void CSound::bufferSwitch ( long index, ASIOBool processNow ) { int iCurSample; - ASIOMutex.lock(); // get mutex lock + // perform the processing for input and output + pSound->ASIOMutex.lock(); // get mutex lock { - // perform the processing for input and output - for ( int i = 0; i < 2 * NUM_IN_OUT_CHANNELS; i++ ) // stereo + // CAPTURE ------------------------------------------------------------- + for ( int i = 0; i < NUM_IN_OUT_CHANNELS; i++ ) { - if ( bufferInfos[i].isInput == ASIOTrue ) + const int iInChNum = i; + + // copy new captured block in thread transfer buffer (copy + // mono data interleaved in stereo buffer) + switch ( pSound->channelInfosInput[pSound->vSelectedInputChannels[i]].type ) { - // CAPTURE ----------------------------------------------------- - // copy new captured block in thread transfer buffer (copy - // mono data interleaved in stereo buffer) - switch ( channelInfos[i].type ) + case ASIOSTInt16LSB: + // no type conversion required, just copy operation + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) { - case ASIOSTInt16LSB: - // no type conversion required, just copy operation - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( bufferInfos[i].buffers[index] )[iCurSample]; - } - break; - - case ASIOSTInt24LSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - int iCurSam = 0; - memcpy ( &iCurSam, ( (char*) bufferInfos[i].buffers[index] ) + iCurSample * 3, 3 ); - iCurSam >>= 8; - - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( iCurSam ); - } - break; - - case ASIOSTInt32LSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] >> 16 ); - } - break; - - case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] * _MAXSHORT ); - } - break; - - case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] * _MAXSHORT ); - } - break; - - case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFF ); - } - break; - - case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] & 0x3FFFF ) >> 2 ); - } - break; - - case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFFF ) >> 4 ); - } - break; - - case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFFFF ) >> 8 ); - } - break; - - case ASIOSTInt16MSB: -// NOT YET TESTED - // flip bits - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - Flip16Bits ( ( static_cast ( - bufferInfos[i].buffers[index] ) )[iCurSample] ); - } - break; - - case ASIOSTInt24MSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // because the bits are flipped, we do not have to perform the - // shift by 8 bits - int iCurSam = 0; - memcpy ( &iCurSam, ( (char*) bufferInfos[i].buffers[index] ) + iCurSample * 3, 3 ); - - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - Flip16Bits ( static_cast ( iCurSam ) ); - } - break; - - case ASIOSTInt32MSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // flip bits and convert to 16 bit - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) >> 16 ); - } - break; - - case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) ) * _MAXSHORT ); - } - break; - - case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( static_cast ( - Flip64Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) ) * _MAXSHORT ); - } - break; - - case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFF ); - } - break; - - case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) & 0x3FFFF ) >> 2 ); - } - break; - - case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFFF ) >> 4 ); - } - break; - - case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] = - static_cast ( ( Flip32Bits ( static_cast ( - bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFFFF ) >> 8 ); - } - break; + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample]; } + break; + + case ASIOSTInt24LSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + int iCurSam = 0; + memcpy ( &iCurSam, ( (char*) pSound->bufferInfos[i].buffers[index] ) + iCurSample * 3, 3 ); + iCurSam >>= 8; + + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( iCurSam ); + } + break; + + case ASIOSTInt32LSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] >> 16 ); + } + break; + + case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] * _MAXSHORT ); + } + break; + + case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] * _MAXSHORT ); + } + break; + + case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFF ); + } + break; + + case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] & 0x3FFFF ) >> 2 ); + } + break; + + case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFFF ) >> 4 ); + } + break; + + case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] & 0xFFFFFF ) >> 8 ); + } + break; + + case ASIOSTInt16MSB: +// NOT YET TESTED + // flip bits + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + Flip16Bits ( ( static_cast ( + pSound->bufferInfos[i].buffers[index] ) )[iCurSample] ); + } + break; + + case ASIOSTInt24MSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // because the bits are flipped, we do not have to perform the + // shift by 8 bits + int iCurSam = 0; + memcpy ( &iCurSam, ( (char*) pSound->bufferInfos[i].buffers[index] ) + iCurSample * 3, 3 ); + + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + Flip16Bits ( static_cast ( iCurSam ) ); + } + break; + + case ASIOSTInt32MSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // flip bits and convert to 16 bit + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) >> 16 ); + } + break; + + case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) ) * _MAXSHORT ); + } + break; + + case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( static_cast ( + Flip64Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) ) * _MAXSHORT ); + } + break; + + case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFF ); + } + break; + + case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) & 0x3FFFF ) >> 2 ); + } + break; + + case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFFF ) >> 4 ); + } + break; + + case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iInChNum] = + static_cast ( ( Flip32Bits ( static_cast ( + pSound->bufferInfos[i].buffers[index] )[iCurSample] ) & 0xFFFFFF ) >> 8 ); + } + break; } } // call processing callback function - pSound->ProcessCallback ( vecsTmpAudioSndCrdStereo ); + pSound->ProcessCallback ( pSound->vecsTmpAudioSndCrdStereo ); - // perform the processing for input and output - for ( int i = 0; i < 2 * NUM_IN_OUT_CHANNELS; i++ ) // stereo + // PLAYBACK ------------------------------------------------------------ + for ( int i = NUM_IN_OUT_CHANNELS; i < 2 * NUM_IN_OUT_CHANNELS; i++ ) { - if ( bufferInfos[i].isInput != ASIOTrue ) + const int iOutChNum = i - NUM_IN_OUT_CHANNELS; + + // copy data from sound card in output buffer (copy + // interleaved stereo data in mono sound card buffer) + switch ( pSound->channelInfosOutput[pSound->vSelectedOutputChannels[iOutChNum]].type ) { - // PLAYBACK ---------------------------------------------------- - // copy data from sound card in output buffer (copy - // interleaved stereo data in mono sound card buffer) - switch ( channelInfos[i].type ) + case ASIOSTInt16LSB: + // no type conversion required, just copy operation + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) { - case ASIOSTInt16LSB: - // no type conversion required, just copy operation - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum]; - } - break; - - case ASIOSTInt24LSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert current sample in 24 bit format - int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - iCurSam <<= 8; - - memcpy ( ( (char*) bufferInfos[i].buffers[index] ) + iCurSample * 3, &iCurSam, 3 ); - } - break; - - case ASIOSTInt32LSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - ( iCurSam << 16 ); - } - break; - - case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - const float fCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - fCurSam / _MAXSHORT; - } - break; - - case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - const double fCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - fCurSam / _MAXSHORT; - } - break; - - case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - iCurSam; - } - break; - - case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - ( iCurSam << 2 ); - } - break; - - case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - ( iCurSam << 4 ); - } - break; - - case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - ( iCurSam << 8 ); - } - break; - - case ASIOSTInt16MSB: -// NOT YET TESTED - // flip bits - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - ( (int16_t*) bufferInfos[i].buffers[index] )[iCurSample] = - Flip16Bits ( vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - } - break; - - case ASIOSTInt24MSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // because the bits are flipped, we do not have to perform the - // shift by 8 bits - int32_t iCurSam = static_cast ( Flip16Bits ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ) ); - - memcpy ( ( (char*) bufferInfos[i].buffers[index] ) + iCurSample * 3, &iCurSam, 3 ); - } - break; - - case ASIOSTInt32MSB: -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit and flip bits - int iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - Flip32Bits ( iCurSam << 16 ); - } - break; - - case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - const float fCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - static_cast ( Flip32Bits ( static_cast ( - fCurSam / _MAXSHORT ) ) ); - } - break; - - case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - const double fCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - static_cast ( Flip64Bits ( static_cast ( - fCurSam / _MAXSHORT ) ) ); - } - break; - - case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - Flip32Bits ( iCurSam ); - } - break; - - case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - Flip32Bits ( iCurSam << 2 ); - } - break; - - case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - Flip32Bits ( iCurSam << 4 ); - } - break; - - case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment -// NOT YET TESTED - for ( iCurSample = 0; iCurSample < iASIOBufferSizeMono; iCurSample++ ) - { - // convert to 32 bit - const int32_t iCurSam = static_cast ( - vecsTmpAudioSndCrdStereo[2 * iCurSample + bufferInfos[i].channelNum] ); - - static_cast ( bufferInfos[i].buffers[index] )[iCurSample] = - Flip32Bits ( iCurSam << 8 ); - } - break; + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum]; } + break; + + case ASIOSTInt24LSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert current sample in 24 bit format + int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + iCurSam <<= 8; + + memcpy ( ( (char*) pSound->bufferInfos[i].buffers[index] ) + iCurSample * 3, &iCurSam, 3 ); + } + break; + + case ASIOSTInt32LSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + ( iCurSam << 16 ); + } + break; + + case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + const float fCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + fCurSam / _MAXSHORT; + } + break; + + case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + const double fCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + fCurSam / _MAXSHORT; + } + break; + + case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + iCurSam; + } + break; + + case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + ( iCurSam << 2 ); + } + break; + + case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + ( iCurSam << 4 ); + } + break; + + case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + ( iCurSam << 8 ); + } + break; + + case ASIOSTInt16MSB: +// NOT YET TESTED + // flip bits + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + ( (int16_t*) pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip16Bits ( pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + } + break; + + case ASIOSTInt24MSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // because the bits are flipped, we do not have to perform the + // shift by 8 bits + int32_t iCurSam = static_cast ( Flip16Bits ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ) ); + + memcpy ( ( (char*) pSound->bufferInfos[i].buffers[index] ) + iCurSample * 3, &iCurSam, 3 ); + } + break; + + case ASIOSTInt32MSB: +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit and flip bits + int iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip32Bits ( iCurSam << 16 ); + } + break; + + case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + const float fCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + static_cast ( Flip32Bits ( static_cast ( + fCurSam / _MAXSHORT ) ) ); + } + break; + + case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + const double fCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + static_cast ( Flip64Bits ( static_cast ( + fCurSam / _MAXSHORT ) ) ); + } + break; + + case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip32Bits ( iCurSam ); + } + break; + + case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip32Bits ( iCurSam << 2 ); + } + break; + + case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip32Bits ( iCurSam << 4 ); + } + break; + + case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment +// NOT YET TESTED + for ( iCurSample = 0; iCurSample < pSound->iASIOBufferSizeMono; iCurSample++ ) + { + // convert to 32 bit + const int32_t iCurSam = static_cast ( + pSound->vecsTmpAudioSndCrdStereo[2 * iCurSample + iOutChNum] ); + + static_cast ( pSound->bufferInfos[i].buffers[index] )[iCurSample] = + Flip32Bits ( iCurSam << 8 ); + } + break; } } // finally if the driver supports the ASIOOutputReady() optimization, // do it here, all data are in place ----------------------------------- - if ( bASIOPostOutput ) + if ( pSound->bASIOPostOutput ) { ASIOOutputReady(); } } - ASIOMutex.unlock(); + pSound->ASIOMutex.unlock(); } long CSound::asioMessages ( long selector, diff --git a/windows/sound.h b/windows/sound.h index 327a31b2..f20c6568 100755 --- a/windows/sound.h +++ b/windows/sound.h @@ -40,14 +40,14 @@ /* Definitions ****************************************************************/ -#define NUM_IN_OUT_CHANNELS 2 /* Stereo recording (but we only - use one channel for recording) */ +// stereo for input and output +#define NUM_IN_OUT_CHANNELS 2 -#define MAX_SND_BUF_IN 100 -#define MAX_SND_BUF_OUT 100 - -#define NUM_SOUND_BUFFERS_IN 4 -#define NUM_SOUND_BUFFERS_OUT 4 +// define the maximum number of audio channel for input/output we can store +// channel infos for (and therefore this is the maximum number of entries in +// the channel selection combo box regardless of the actual available number +// of channels by the audio device) +#define MAX_NUM_IN_OUT_CHANNELS 32 /* Classes ********************************************************************/ @@ -74,6 +74,17 @@ protected: QString LoadAndInitializeDriver ( int iIdx ); int GetActualBufferSize ( const int iDesiredBufferSizeMono ); QString CheckDeviceCapabilities(); + bool CheckSampleTypeSupported ( const ASIOSampleType SamType ); + + int iASIOBufferSizeMono; + int iASIOBufferSizeStereo; + + CVector vSelectedInputChannels; + CVector vSelectedOutputChannels; + + CVector vecsTmpAudioSndCrdStereo; + + QMutex ASIOMutex; // utility functions static int16_t Flip16Bits ( const int16_t iIn ); @@ -89,6 +100,14 @@ protected: long lGranularity; } HWBufferInfo; + // ASIO stuff + ASIODriverInfo driverInfo; + ASIOBufferInfo bufferInfos[2 * NUM_IN_OUT_CHANNELS]; // for input and output buffers -> "2 *" + ASIOChannelInfo channelInfosInput[MAX_NUM_IN_OUT_CHANNELS]; + ASIOChannelInfo channelInfosOutput[MAX_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 );