// Main audio processing callback.
// NOTE: Called on a separate thread from main() thread.
ASIOTime *bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow)
{
// Buffer size (in samples):
long buffSize = drv.preferredSize;
// Assume the buffer size is an even multiple of 32-bytes:
assert((buffSize % sizeof(vec4_d64)) == 0);
for (long i = 0; i < buffSize; ++i)
{
assert(index == 0 || index == 1);
// Process 8 channels of 32-bit samples per iteration:
for (long n = 0; n < inputChannels / 8; ++n)
{
const long ci = n * 8;
const long co = drv.inputBuffers + ci;
// Stripe input samples into a vector:
const vec8_i32 inpSamples = _mm256_setr_epi32(
((long *)drv.bufferInfos[ci + 0].buffers[index])[i],
((long *)drv.bufferInfos[ci + 1].buffers[index])[i],
((long *)drv.bufferInfos[ci + 2].buffers[index])[i],
((long *)drv.bufferInfos[ci + 3].buffers[index])[i],
((long *)drv.bufferInfos[ci + 4].buffers[index])[i],
((long *)drv.bufferInfos[ci + 5].buffers[index])[i],
((long *)drv.bufferInfos[ci + 6].buffers[index])[i],
((long *)drv.bufferInfos[ci + 7].buffers[index])[i]
);
// Process audio effects:
vec8_i32 outSamples;
processEffects(inpSamples, outSamples, n * 2);
// Copy outputs to output channel buffers:
const long *outputs32 = (const long *)&outSamples;
((long *)drv.bufferInfos[co + 0].buffers[index])[i] = outputs32[0];
((long *)drv.bufferInfos[co + 1].buffers[index])[i] = outputs32[1];
((long *)drv.bufferInfos[co + 2].buffers[index])[i] = outputs32[2];
((long *)drv.bufferInfos[co + 3].buffers[index])[i] = outputs32[3];
((long *)drv.bufferInfos[co + 4].buffers[index])[i] = outputs32[4];
((long *)drv.bufferInfos[co + 5].buffers[index])[i] = outputs32[5];
((long *)drv.bufferInfos[co + 6].buffers[index])[i] = outputs32[6];
((long *)drv.bufferInfos[co + 7].buffers[index])[i] = outputs32[7];
}
}
if (drv.postOutput)
ASIOOutputReady();
return 0L;
}
//----------------------------------------------------------------------------------
long init_asio_static_data (DriverInfo *asioDriverInfo)
{ // collect the informational data of the driver
// get the number of available channels
if(ASIOGetChannels(&asioDriverInfo->inputChannels, &asioDriverInfo->outputChannels) == ASE_OK)
{
printf ("ASIOGetChannels (inputs: %d, outputs: %d);\n", asioDriverInfo->inputChannels, asioDriverInfo->outputChannels);
// get the usable buffer sizes
if(ASIOGetBufferSize(&asioDriverInfo->minSize, &asioDriverInfo->maxSize, &asioDriverInfo->preferredSize, &asioDriverInfo->granularity) == ASE_OK)
{
printf ("ASIOGetBufferSize (min: %d, max: %d, preferred: %d, granularity: %d);\n",
asioDriverInfo->minSize, asioDriverInfo->maxSize,
asioDriverInfo->preferredSize, asioDriverInfo->granularity);
// get the currently selected sample rate
if(ASIOGetSampleRate(&asioDriverInfo->sampleRate) == ASE_OK)
{
printf ("ASIOGetSampleRate (sampleRate: %f);\n", asioDriverInfo->sampleRate);
if (asioDriverInfo->sampleRate <= 0.0 || asioDriverInfo->sampleRate > 96000.0)
{
// Driver does not store it's internal sample rate, so set it to a know one.
// Usually you should check beforehand, that the selected sample rate is valid
// with ASIOCanSampleRate().
if(ASIOSetSampleRate(44100.0) == ASE_OK)
{
if(ASIOGetSampleRate(&asioDriverInfo->sampleRate) == ASE_OK)
printf ("ASIOGetSampleRate (sampleRate: %f);\n", asioDriverInfo->sampleRate);
else
return -6;
}
else
return -5;
}
// check wether the driver requires the ASIOOutputReady() optimization
// (can be used by the driver to reduce output latency by one block)
if(ASIOOutputReady() == ASE_OK)
asioDriverInfo->postOutput = true;
else
asioDriverInfo->postOutput = false;
printf ("ASIOOutputReady(); - %s\n", asioDriverInfo->postOutput ? "Supported" : "Not supported");
return 0;
}
return -3;
}
return -2;
}
return -1;
}
// from ASIOv2
ASIOTime* bufferSwitchTimeInfo(ASIOTime* asioTime, long bufferIndex, ASIOBool directProcess) {
JNIEnv *env = NULL;
jint res = jvm->AttachCurrentThreadAsDaemon((void **) &env, NULL);
if (res == JNI_OK && env != NULL) {
env->CallVoidMethod(
jAsioDriver,
fireBufferSwitchMid,
(jlong) ASIO64toLong(asioTime->timeInfo.systemTime),
(jlong) ASIO64toLong(asioTime->timeInfo.samplePosition),
(jint) bufferIndex);
}
ASIOOutputReady();
return asioTime;
}
SndASIO::SndASIO(int channels, int mode, char* driver, int numbuffs,
SndObj** inputs,
int vecsize, float sr) :
SndIO(channels,16,inputs,vecsize, sr){
int i;
m_numbuffs = numbuffs;
m_mode = mode;
m_running = false;
m_driver = driver;
m_ocurrentbuffer = m_icurrentbuffer = 1;
m_icount = m_ocount = 0;
memset(&m_driverinfo, 0, sizeof(ASIODriverInfo));
m_asiocallbacks.bufferSwitch = &bufferSwitch;
m_asiocallbacks.sampleRateDidChange = &sampleRateChanged;
m_asiocallbacks.asioMessage = &asioMessages;
m_asiocallbacks.bufferSwitchTimeInfo = &bufferSwitchTimeInfo;
// Allocate the memory for BufferInfos
if(!(bufferinfos = new ASIOBufferInfo[(m_channels+2)*2])){
m_error = 21;
return;
}
if(!asioDrivers) asioDrivers = new AsioDrivers;
if(asioDrivers->loadDriver(m_driver)){
if(ASIOInit(&m_driverinfo) == ASE_OK){
if(ASIOCanSampleRate(m_sr) == ASE_OK)
ASIOSetSampleRate(m_sr);
else ASIOGetSampleRate((double *)&m_sr);
// set buffer size
long dump1, dump2, dump3;
ASIOGetBufferSize(&dump1, &dump2, &buffsize, &dump3);
// get number of channels
ASIOGetChannels(&ichannels, &ochannels);
if(ichannels < m_channels){
m_channels = (short) ichannels;
m_samples = m_vecsize*m_channels;
}
else ichannels = m_channels;
if(ochannels < m_channels){
m_channels = (short) ochannels;
m_samples = m_vecsize*m_channels;
}
else ochannels = m_channels;
if(m_mode == SND_OUTPUT) ichannels = 0;
if(m_mode == SND_INPUT) ochannels = 0;
// Set the channel infos
if(!(m_channelinfos = new ASIOChannelInfo[m_channels*2])){
m_error = 22;
return;
}
if((m_mode == SND_IO) || (m_mode == SND_OUTPUT)){
outsndbuff = new float*[m_numbuffs];
for(i = 0; i< m_numbuffs; i++){
if(!(outsndbuff[i] = new float[buffsize*m_channels])){
m_error =14;
return;
}
}
for(i = 0; i < m_channels; i++){
bufferinfos[i].isInput = ASIOFalse;
bufferinfos[i].channelNum = i;
bufferinfos[i].buffers[0] =
bufferinfos[i].buffers[1] = 0;
m_channelinfos[i].channel = bufferinfos[i].channelNum;
m_channelinfos[i].isInput = bufferinfos[i].isInput;
ASIOGetChannelInfo(&m_channelinfos[i]);
switch(m_channelinfos[i].type){
case ASIOSTInt16LSB:
encoding = SHORTSAM;
m_bits = 16;
break;
case ASIOSTInt24LSB:
encoding = S24LE;
m_bits = 24;
break;
case ASIOSTInt32LSB:
encoding = LONGSAM;
m_bits = 32;
break;
default:
encoding = SHORTSAM;
break;
}
}
}
if((m_mode == SND_IO) || (m_mode == SND_INPUT)){
insndbuff = new float*[m_numbuffs];
for(i = 0; i< m_numbuffs; i++){
if(!(insndbuff[i] = new float[buffsize*m_channels])){
m_error =14;
return;
}
}
for(i = 0; i < m_channels; i++){
bufferinfos[i+ochannels].isInput = ASIOTrue;
bufferinfos[i+ochannels].channelNum = i;
bufferinfos[i+ochannels].buffers[0] =
bufferinfos[i+ochannels].buffers[1] = 0;
m_channelinfos[i+ochannels].channel = bufferinfos[i+ochannels].channelNum;
m_channelinfos[i+ochannels].isInput = bufferinfos[i+ochannels].isInput;
ASIOGetChannelInfo(&m_channelinfos[i+ochannels]);
switch(m_channelinfos[i+ochannels].type){
case ASIOSTInt16LSB:
encoding = SHORTSAM;
m_bits = 16;
break;
case ASIOSTInt24LSB:
encoding = S24LE;
m_bits = 24;
break;
case ASIOSTInt32LSB:
encoding = LONGSAM;
m_bits = 32;
break;
default:
encoding = SHORTSAM;
break;
}
}
}
if(!(ASIOCreateBuffers(bufferinfos, ichannels+ochannels,
buffsize, &m_asiocallbacks)== ASE_OK)){
m_error = 25;
return;
}
if(ASIOOutputReady() == ASE_OK) optimise = true;
else optimise = false;
// printf("channels: %d\n", m_channels);
m_outsndbuff = outsndbuff;
m_insndbuff = insndbuff;
m_encoding = encoding;
m_bufferinfos = bufferinfos;
m_ichannels = ichannels;
m_ochannels = ochannels;
m_buffsize = buffsize;
currentbuffer = 0;
m_called_read = false;
buffs = m_numbuffs;
}
else { // could not initialise
m_error = 24;
return;
}
}
else { // if driver could not be loaded
m_error = 23;
return;
}
#ifdef DEBUG
cout << m_bits;
#endif
}
ASIOTime*
bufferSwitchTimeInfo(ASIOTime *timeInfo,
long index, ASIOBool processNow){
short* sigshort;
long* siglong;
_24Bit* sig24;
int n,j;
// we do the channel interleaving here
for(int i = 0; i < ichannels+ochannels; i++){
if(bufferinfos[i].isInput == ASIOFalse){
// while(ocurrentbuffer == currentbuffer) {
// Sleep(1);
// }
switch(encoding){
case SHORTSAM:
sigshort = (short *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ochannels; n+=ochannels, j++){
sigshort[j] = (short) outsndbuff[currentbuffer][n];
}
break;
case S24LE:
union { char c[4]; long l;} tmp;
sig24 = (_24Bit *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ochannels; n+=ochannels, j++){
tmp.l = (long) outsndbuff[currentbuffer][n];
sig24[j].s[0] = tmp.c[1];
sig24[j].s[1] = tmp.c[2];
sig24[j].s[2] = tmp.c[3];
}
break;
case LONGSAM:
siglong = (long *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ochannels; n+=ochannels, j++)
siglong[j] = (long) outsndbuff[currentbuffer][n];
break;
}
}
else{
switch(encoding){
case SHORTSAM:
sigshort = (short *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ichannels; n+=ichannels, j++)
insndbuff[currentbuffer][n] = (float) sigshort[j];
break;
case S24LE:
char tmp[4];
sig24 = (_24Bit *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ichannels; n+=ichannels, j++) {
tmp[1] = sig24[j].s[0];
tmp[2] = sig24[j].s[1];
tmp[3] = sig24[j].s[2];
tmp[0] = 0;
insndbuff[currentbuffer][n] = (float)(*(long *)tmp);
}
break;
case LONGSAM:
siglong = (long *)bufferinfos[i].buffers[index];
for(n = bufferinfos[i].channelNum, j = 0;
n < buffsize*ichannels; n+=ichannels, j++)
insndbuff[currentbuffer][n] = (float) siglong[j];
break;
}
}
}
if(optimise)ASIOOutputReady();
memset(outsndbuff[currentbuffer], 0, sizeof(float)*buffsize*ochannels);
currentbuffer= (currentbuffer+1)%buffs;
return timeInfo;
}
// Main:
int main()
{
int retval = 0;
bool inited = false, buffersCreated = false, started = false;
char *error = NULL;
drv.sampleRate = 44100.0;
// Initialize FX parameters:
fx.f0_gain.init();
fx.f1_compressor.init();
// Set our own inputs:
for (int i = 0; i < icr; ++i)
{
fx.f0_gain.input.gain[i] = _mm256_set1_pd(0); // dB
fx.f1_compressor.input.threshold[i] = _mm256_set1_pd(-30); // dBFS
fx.f1_compressor.input.attack[i] = _mm256_set1_pd(1.0); // msec
fx.f1_compressor.input.release[i] = _mm256_set1_pd(80); // msec
fx.f1_compressor.input.ratio[i] = _mm256_set1_pd(0.25); // N:1
fx.f1_compressor.input.gain[i] = _mm256_set1_pd(6); // dB
}
// Calculate input-dependent values:
fx.f0_gain.recalc();
fx.f1_compressor.recalc();
// FX parameters are all set.
#ifdef NOT_LIVE
// Test mode:
#if 0
const auto t0 = mm256_if_then_else(_mm256_cmp_pd(_mm256_set1_pd(-1.0), _mm256_set1_pd(0.0), _CMP_LT_OQ), _mm256_set1_pd(0.0), _mm256_set1_pd(-1.0));
printvec_dB(t0);
printf("\n\n");
const auto p0 = mm256_if_then_else(_mm256_cmp_pd(_mm256_set1_pd(-1.0), _mm256_set1_pd(0.0), _CMP_LT_OQ), _mm256_set1_pd(0.0), _mm256_set1_pd(1.0));
printvec_dB(t0);
printf("\n\n");
const auto t1 = mm256_if_then_else(_mm256_cmp_pd(_mm256_set1_pd(0.0), _mm256_set1_pd(0.0), _CMP_LT_OQ), _mm256_set1_pd(0.0), _mm256_set1_pd(-1.0));
printvec_dB(t1);
printf("\n\n");
const auto p1 = mm256_if_then_else(_mm256_cmp_pd(_mm256_set1_pd(0.0), _mm256_set1_pd(0.0), _CMP_LT_OQ), _mm256_set1_pd(0.0), _mm256_set1_pd(1.0));
printvec_dB(t1);
printf("\n\n");
goto done;
#endif
vec8_i32 in, out;
long long c = 0LL;
for (int i = 0; i < 20; ++i)
{
for (int n = 0; n < 48; ++n, ++c)
{
double s = sin(2.0 * 3.14159265358979323846 * (double)c / drv.sampleRate);
int si = (int)(s * INT_MAX / 2);
in = _mm256_set1_epi32(si);
processEffects(in, out, 0);
}
#if 1
printf("samp: ");
printvec_samp(in);
printf("\n");
printf("input: ");
for (int n = 0; n < icr; ++n)
{
printvec_dB(fx.fi_monitor.levels[n]);
if (n < icr - 1) printf(" ");
}
printf("\n");
printf("gain: ");
for (int n = 0; n < icr; ++n)
{
printvec_dB(fx.f0_output.levels[n]);
if (n < icr - 1) printf(" ");
}
printf("\n");
printf("comp: ");
for (int n = 0; n < icr; ++n)
{
printvec_dB(fx.fo_monitor.levels[n]);
if (n < icr - 1) printf(" ");
}
printf("\n");
printf("samp: ");
printvec_samp(out);
printf("\n\n");
#endif
}
#else
// ASIO live engine mode:
if (!loadAsioDriver("UA-1000"))
{
error = "load failed.";
goto err;
}
if (ASIOInit(&drv.driver) != ASE_OK)
goto err;
inited = true;
if (ASIOGetChannels(&drv.inputChannels, &drv.outputChannels) != ASE_OK)
goto err;
printf("in: %d, out %d\n", drv.inputChannels, drv.outputChannels);
if (ASIOGetBufferSize(&drv.minSize, &drv.maxSize, &drv.preferredSize, &drv.granularity) != ASE_OK)
goto err;
printf("min buf size: %d, preferred: %d, max buf size: %d\n", drv.minSize, drv.preferredSize, drv.maxSize);
if (ASIOGetSampleRate(&drv.sampleRate) != ASE_OK)
goto err;
printf("rate: %f\n\n", drv.sampleRate);
if (ASIOOutputReady() == ASE_OK)
drv.postOutput = true;
else
drv.postOutput = false;
// fill the bufferInfos from the start without a gap
ASIOBufferInfo *info = drv.bufferInfos;
// prepare inputs (Though this is not necessarily required, no opened inputs will work, too
if (drv.inputChannels > kMaxInputChannels)
drv.inputBuffers = kMaxInputChannels;
else
drv.inputBuffers = drv.inputChannels;
for (int i = 0; i < drv.inputBuffers; i++, info++)
{
info->isInput = ASIOTrue;
info->channelNum = i;
info->buffers[0] = info->buffers[1] = 0;
}
// prepare outputs
if (drv.outputChannels > kMaxOutputChannels)
drv.outputBuffers = kMaxOutputChannels;
else
drv.outputBuffers = drv.outputChannels;
for (int i = 0; i < drv.outputBuffers; i++, info++)
{
info->isInput = ASIOFalse;
info->channelNum = i;
info->buffers[0] = info->buffers[1] = 0;
}
asioCallbacks.asioMessage = asioMessage;
asioCallbacks.bufferSwitch = bufferSwitch;
asioCallbacks.bufferSwitchTimeInfo = bufferSwitchTimeInfo;
// Create the buffers:
if (ASIOCreateBuffers(drv.bufferInfos, drv.inputBuffers + drv.outputBuffers, drv.preferredSize, &asioCallbacks) != ASE_OK)
goto err;
else
buffersCreated = true;
// now get all the buffer details, sample word length, name, word clock group and activation
for (int i = 0; i < drv.inputBuffers + drv.outputBuffers; i++)
{
drv.channelInfos[i].channel = drv.bufferInfos[i].channelNum;
drv.channelInfos[i].isInput = drv.bufferInfos[i].isInput;
if (ASIOGetChannelInfo(&drv.channelInfos[i]) != ASE_OK)
goto err;
//printf("%s[%2d].type = %d\n", drv.channelInfos[i].isInput ? "in " : "out", drv.channelInfos[i].channel, drv.channelInfos[i].type);
if (drv.channelInfos[i].type != ASIOSTInt32LSB)
{
error = "Application assumes sample types of ASIOSTInt32LSB!";
goto err;
}
}
// get the input and output latencies
// Latencies often are only valid after ASIOCreateBuffers()
// (input latency is the age of the first sample in the currently returned audio block)
// (output latency is the time the first sample in the currently returned audio block requires to get to the output)
if (ASIOGetLatencies(&drv.inputLatency, &drv.outputLatency) != ASE_OK)
goto err;
printf ("latencies: input: %d, output: %d\n", drv.inputLatency, drv.outputLatency);
// Start the engine:
if (ASIOStart() != ASE_OK)
goto err;
else
started = true;
printf("Engine started.\n\n");
const int total_time = 30;
for (int i = 0; i < total_time; ++i)
{
printf("Engine running %2d. \r", total_time - i);
Sleep(1000);
}
#endif
goto done;
err:
if (error == NULL)
error = drv.driver.errorMessage;
if (error != NULL)
fprintf(stderr, "%s\r\n", error);
retval = -1;
done:
if (started)
ASIOStop();
if (buffersCreated)
ASIODisposeBuffers();
if (inited)
ASIOExit();
return retval;
}
ASIOTime *bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow)
{ // the actual processing callback.
// Beware that this is normally in a seperate thread, hence be sure that you take care
// about thread synchronization. This is omitted here for simplicity.
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 = ASIO64toNanoSeconds(timeInfo->timeInfo.systemTime);
else
asioDriverInfo.nanoSeconds = 0;
if (timeInfo->timeInfo.flags & kSamplePositionValid)
asioDriverInfo.samples = ASIO64toNanoSeconds(timeInfo->timeInfo.samplePosition);
else
asioDriverInfo.samples = 0;
if (timeInfo->timeCode.flags & kTcValid)
asioDriverInfo.tcSamples = ASIO64toNanoSeconds(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 == true)
{
in_counter++;
std::unique_ptr<ah::GenericBuffer> gbuff = ah::NewGenericBufferFromASIO_Sample_T(
asioDriverInfo.bufferInfos[i].buffers[index],asioDriverInfo.channelInfos[i].type);
int inbuf_ind;
int n = buffSize/gbuff->SampleSize();
sum=0;
for (inbuf_ind = 0 ; inbuf_ind < n ; inbuf_ind++ )
{
int this_elem = *gbuff->GetElement(inbuf_ind);
sum += this_elem*this_elem;
}
//fprintf(stdout,"%d",sum);
}
else
{
out_counter++;
// 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;
}