void svvimApp::getAlpha () {
// Sound buffer for FFT
mPcmBuffer = mInput.getPcmBuffer();
//
if (mPcmBuffer) {
mFftDataRef = audio::calculateFft(mPcmBuffer->getChannelData( audio::CHANNEL_FRONT_LEFT ), 512);
}
uint16_t bandCount = 64;
if( ! mPcmBuffer )
return;
//use the most recent Pcm data to calculate t`he Fft
std::shared_ptr <float> fftRef = audio::calculateFft( mPcmBuffer->getChannelData( audio::CHANNEL_FRONT_LEFT ), bandCount );
if( ! fftRef ) {
return;
}
float * fftBuffer = fftRef.get();
//mAlpha = max(2, mAlpha);
//draw the bands
for( int i = 0; i < ( bandCount/32 ); i++ ) {
mAlpha += fftBuffer[i] / bandCount / 4;
}
mAlpha /= 6.5;
}
void TouchAudioTestApp::update()
{
mPcmBuffer = mInput.getPcmBuffer();
if( ! mPcmBuffer ) {
return;
}
}
void shader02vertexApp::update() {
//--audio input
mPcmBuffer= mInput.getPcmBuffer();
if(mPcmBuffer) {
mBufferSize= mPcmBuffer->getSampleCount();
//std::cout<<"mBufferSize: "<<mBufferSize<<std::endl;
mBufferLeft= mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_LEFT);
mFftLeft= audio::calculateFft(mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_LEFT), mBufferSize/2);
mAmplitude= 0.0f;
for(uint32_t i= 0; i<mBufferSize; i++) {
mAmplitude += abs(mBufferLeft->mData[i]);
}
mAmplitude /= float(mBufferSize); //average amplitude
Surface32f mSurfaceSnd(mBufferSize, 1, true);
Surface32f::Iter sndIter(mSurfaceSnd.getIter());
uint32_t i= 0;
while(sndIter.line()) {
while(sndIter.pixel()) {
sndIter.r()= mBufferLeft->mData[i];
i++;
}
}
mTextureSnd= gl::Texture(mSurfaceSnd);
Surface32f mSurfaceFft(mBufferSize/2, 1, true);
Surface32f::Iter fftIter(mSurfaceFft.getIter());
uint32_t j= 0;
float *fftBuffer= mFftLeft.get();
while(fftIter.line()) {
while(fftIter.pixel()) {
fftIter.r()= fftBuffer[j];
j++;
}
}
mTextureFft= gl::Texture(mSurfaceFft);
}
//--shaders
if((fs::last_write_time(mPathFrag)>mTimeFrag) || (fs::last_write_time(mPathVert)>mTimeVert)) {
loadShader(); //hot-loading shader
}
}
void redEyeApp::update() {
//--osc input
while(mListener.hasWaitingMessages()) {
osc::Message msg;
mListener.getNextMessage(&msg);
mOsc= msg.getAddress();
for(uint32_t i= 0; i<msg.getNumArgs(); i++) {
mOsc= mOsc+" "+msg.getArgAsString(i, true);
}
if(msg.getAddress()=="/numSamples") {
mNumSamples= math<int32_t>::clamp(msg.getArgAsInt32(0, true), 1, 2048);
} else if(msg.getAddress()=="/downSample") {
mDownSample= math<int32_t>::clamp(msg.getArgAsInt32(0, true), 0, 2047);
} else if(msg.getAddress()=="/amplitude") {
mAmplitude= msg.getArgAsFloat(0, true);
} else if(msg.getAddress()=="/width") {
mWidth= math<float>::clamp(msg.getArgAsFloat(0, true), 0, 1000);
} else if(msg.getAddress()=="/colorBack") {
ColorA col= ColorA(0, 0, 0, 1);
for(uint32_t i= 0; i<min(msg.getNumArgs(), 4); i++) {
col[i]= msg.getArgAsFloat(i, true);
}
mColorBack.set(col.r, col.g, col.b, col.a);
} else if(msg.getAddress()=="/scale0") {
Vec3f sca= Vec3f(1.0f, 1.0f, 1.0f);
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
msg.getArgAsFloat(i, true);
}
mScale0.set(sca.x, sca.y, sca.z);
} else if(msg.getAddress()=="/scale1") {
Vec3f sca= Vec3f(1.0f, 1.0f, 1.0f);
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
msg.getArgAsFloat(i, true);
}
mScale1.set(sca.x, sca.y, sca.z);
} else if(msg.getAddress()=="/rotate0") {
Vec3f rot= Vec3f::zero();
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
rot[i]= msg.getArgAsFloat(i, true);
}
mRotate0.set(rot.x, rot.y, rot.z);
} else if(msg.getAddress()=="/rotate1") {
Vec3f rot= Vec3f::zero();
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
rot[i]= msg.getArgAsFloat(i, true);
}
mRotate1.set(rot.x, rot.y, rot.z);
} else if(msg.getAddress()=="/translate0") {
Vec3f tra= Vec3f::zero();
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
tra[i]= msg.getArgAsFloat(i, true);
}
mTranslate0.set(tra.x, tra.y, tra.z);
} else if(msg.getAddress()=="/translate1") {
Vec3f tra= Vec3f::zero();
for(uint32_t i= 0; i<min(msg.getNumArgs(), 3); i++) {
tra[i]= msg.getArgAsFloat(i, true);
}
mTranslate1.set(tra.x, tra.y, tra.z);
} else if(msg.getAddress()=="/color0") {
ColorA col= ColorA(0, 0, 0, 1);
for(uint32_t i= 0; i<min(msg.getNumArgs(), 4); i++) {
col[i]= msg.getArgAsFloat(i, true);
}
mColor0.set(col.r, col.g, col.b, col.a);
} else if(msg.getAddress()=="/color1") {
ColorA col= ColorA(0, 0, 0, 1);
for(uint32_t i= 0; i<min(msg.getNumArgs(), 4); i++) {
col[i]= msg.getArgAsFloat(i, true);
}
mColor1.set(col.r, col.g, col.b, col.a);
}
}
//--audio input
mPcmBuffer= mInput.getPcmBuffer();
if(mPcmBuffer) {
mBufferSize= mPcmBuffer->getSampleCount();
//std::cout<<"mBufferSize: "<<mBufferSize<<std::endl;
mBufferLeft= mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_LEFT);
//mBufferRight= mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_RIGHT);
mFftLeft= audio::calculateFft(mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_LEFT), mBufferSize/2);
//mFftRight= audio::calculateFft(mPcmBuffer->getChannelData(audio::CHANNEL_FRONT_LEFT), mBufferSize/2);
mAmplitude= 0.0f;
for(uint32_t i= 0; i<mBufferSize; i++) {
mAmplitude += abs(mBufferLeft->mData[i]);
}
mAmplitude /= float(mBufferSize); //average amplitude
Surface32f mSurfaceSnd(mBufferSize, 1, true);
Surface32f::Iter sndIter(mSurfaceSnd.getIter());
uint32_t i= 0;
while(sndIter.line()) {
while(sndIter.pixel()) {
sndIter.r()= mBufferLeft->mData[i];
i++;
}
}
mTextureSnd= gl::Texture(mSurfaceSnd);
Surface32f mSurfaceFft(mBufferSize/2, 1, true);
Surface32f::Iter fftIter(mSurfaceFft.getIter());
uint32_t j= 0;
float *fftBuffer= mFftLeft.get();
while(fftIter.line()) {
while(fftIter.pixel()) {
fftIter.r()= fftBuffer[j];
j++;
}
}
mTextureFft= gl::Texture(mSurfaceFft);
}
//--shaders
if(mShader!=NULL) {
if((fs::last_write_time(mPathFrag)>mTimeFrag) || (fs::last_write_time(mPathVert)>mTimeVert)) {
loadShader(); //hot-loading shader
}
}
mFps= getAverageFps();
}