void PauseUGenInternal::processBlock(bool& shouldDelete, const unsigned int blockID, const int channel) throw()
{
int numSamplesToProcess = uGenOutput.getBlockSize();
float* outputSamples = uGenOutput.getSampleData();
float currentLevel = *(inputs[Level].processBlock(shouldDelete, blockID, channel));
if(currentLevel == 0.f && prevLevel == 0.f)
{
#ifdef UGEN_VDSP
vDSP_vclr(outputSamples, 1, numSamplesToProcess);
#else
memset(outputSamples, 0, numSamplesToProcess * sizeof(float));
#endif
}
else
{
float* inputSamples = inputs[Input].processBlock(shouldDelete, blockID, channel);
if(currentLevel != prevLevel)
{
float inc = (currentLevel - prevLevel) / (float)numSamplesToProcess;
float level = prevLevel;
while(numSamplesToProcess--)
{
*outputSamples++ = *inputSamples++ * level;
level += inc;
}
}
else
{
#ifdef UGEN_VDSP
float zero = 0.f;
vDSP_vsmsa(inputSamples, 1, ¤tLevel, &zero, outputSamples, 1, numSamplesToProcess);
#else
while(numSamplesToProcess--)
{
*outputSamples++ = *inputSamples++ * currentLevel;
}
#endif
}
}
prevLevel = currentLevel;
}
void WaveformForBuffer(Float32 * begin, size_t length, float w, float h, ofPolyline &outLine, unsigned rate) {
const size_t size = length / rate;
if(size == 0) {
outLine.clear();
return;
}
if(outLine.size() != size) {
outLine.resize(size);
}
float * v = (float *)&outLine[0];
float zero = 0;
float half = h / 2.;
vDSP_vsmsa(begin, rate, &half, &half, v + 1, 3, size); // multiply and add "y"s
vDSP_vgen(&zero, &w, v, 3, size); // generate "x"s
}
inline void maxiCollider::createGabor(flArr &atom, const float freq, const float sampleRate, const uint length,
float startPhase, const float kurtotis, const float amp) {
atom.resize(length);
flArr sine;
sine.resize(length);
// float gausDivisor = (-2.0 * kurtotis * kurtotis);
// float phase =-1.0;
double *env = maxiCollider::envCache.getWindow(length);
#ifdef __APPLE_CC__
vDSP_vdpsp(env, 1, &atom[0], 1, length);
#else
for(uint i=0; i < length; i++) {
atom[i] = env[i];
}
#endif
//#ifdef __APPLE_CC__
// vDSP_vramp(&phase, &inc, &atom[0], 1, length);
// vDSP_vsq(&atom[0], 1, &atom[0], 1, length);
// vDSP_vsdiv(&atom[0], 1, &gausDivisor, &atom[0], 1, length);
// for(uint i=0; i < length; i++) atom[i] = exp(atom[i]);
//#else
// for(uint i=0; i < length; i++) {
// //gaussian envelope
// atom[i] = exp((phase* phase) / gausDivisor);
// phase += inc;
// }
//#endif
float cycleLen = sampleRate / freq;
float maxPhase = length / cycleLen;
float inc = 1.0 / length;
#ifdef __APPLE_CC__
flArr interpConstants;
interpConstants.resize(length);
float phase = 0.0;
vDSP_vramp(&phase, &inc, &interpConstants[0], 1, length);
vDSP_vsmsa(&interpConstants[0], 1, &maxPhase, &startPhase, &interpConstants[0], 1, length);
float waveTableLength = 512;
vDSP_vsmul(&interpConstants[0], 1, &waveTableLength, &interpConstants[0], 1, length);
for(uint i=0; i < length; i++) {
interpConstants[i] = fmod(interpConstants[i], 512.0f);
}
vDSP_vlint(sineBuffer2, &interpConstants[0], 1, &sine[0], 1, length, 514);
vDSP_vmul(&atom[0], 1, &sine[0], 1, &atom[0], 1, length);
vDSP_vsmul(&atom[0], 1, &, &atom[0], 1, length);
#else
maxPhase *= TWOPI;
for(uint i=0; i < length; i++) {
//multiply by sinewave
float x = inc * i;
sine[i] = sin((x * maxPhase) + startPhase);
}
for(uint i=0; i < length; i++) {
atom[i] *= sine[i];
atom[i] *= amp;
}
#endif
}