PdSynth :: PdSynth(lua_State * L)
: synth(5), mPd(NULL) {
synth.init(L);
luaav_audio_config config = luaav_audio_config_current();
void * userdata = this;
mPd = zg_new_context(config.inchannels, config.outchannels, config.blocksize, config.samplerate, printCallbackFunction, userdata);
mIns = config.inchannels;
mOuts = config.outchannels;
mBlockSize = config.blocksize;
// create some buffers for PD to use:
// (Can't use LuaAV signals, because PD wants floats...)
mInputBuffers = (float *)calloc(mIns * mBlockSize, sizeof(float));
mOutputBuffers = (float *)calloc(mOuts * mBlockSize, sizeof(float));
}
int main(int argc, char * const argv[]) {
const int blockSize = 64;
const int numInputChannels = 2;
const int numOutputChannels = 2;
const float sampleRate = 22050.0f;
// pass directory and filename of the patch to load
PdContext *context = zg_new_context(numInputChannels, numOutputChannels, blockSize, sampleRate,
callbackFunction, NULL);
PdGraph *graph = zg_new_graph(context, "/Users/mhroth/workspace/ZenGarden/test/", "MessageMessageBox.pd");
if (graph == NULL) {
zg_delete_context(context);
return 1;
}
zg_attach_graph(context, graph);
float *inputBuffers = (float *) calloc(numInputChannels * blockSize, sizeof(float));
float *outputBuffers = (float *) calloc(numOutputChannels * blockSize, sizeof(float));
timeval start, end;
gettimeofday(&start, NULL);
for (int i = 0; i < NUM_ITERATIONS; i++) {
zg_process(context, inputBuffers, outputBuffers);
}
gettimeofday(&end, NULL);
double elapsedTime = (end.tv_sec - start.tv_sec) * 1000.0; // sec to ms
elapsedTime += (end.tv_usec - start.tv_usec) / 1000.0; // us to ms
printf("Runtime is: %i iterations in %f milliseconds == %f iterations/second.\n", NUM_ITERATIONS,
elapsedTime, ((double) NUM_ITERATIONS)*1000.0/elapsedTime);
double simulatedTime = ((double) blockSize / (double) sampleRate) * (double) NUM_ITERATIONS * 1000.0; // milliseconds
printf("Runs in realtime: %s (x%.3f)\n", (simulatedTime >= elapsedTime) ? "YES" : "NO", simulatedTime/elapsedTime);
zg_delete_context(context);
free(inputBuffers);
free(outputBuffers);
return 0;
}
void ofxZenGarden::load(string patchFile, int inputs, int outputs, int samplerate, int bufferSize) {
patchFile = ofToDataPath(patchFile);
running = false;
hasADC = false;
blockSize = bufferSize;
numInputChannels = inputs;
numOutputChannels = outputs;
sampleRate = samplerate;
path = patchFile;
if(inputBuffer!=NULL) delete [] inputBuffer;
if(outputBuffer!=NULL) delete [] outputBuffer;
outputBuffer = new float[numOutputChannels*blockSize];
inputBuffer = new float[numInputChannels*blockSize];
char file[256];
char dir[512];
getDirAndFile(patchFile.c_str(), dir, file);
if(context!=NULL) {
delete context;
context = NULL;
}
printf("Starting graph with in: %d out: %d sr: %d bs: %d\n", numInputChannels, numOutputChannels, sampleRate, blockSize);
context = zg_new_context(numInputChannels, numOutputChannels, blockSize, sampleRate,
callbackFunction, NULL);
ZGGraph *graph = zg_new_graph(context, dir, file);
if (graph == NULL) {
printf("PdGraph could not be created. Is the filename correct?\n");
zg_delete_context(context);
return;
}
zg_attach_graph(context, graph);
// look through the pd file and see if there's a dac~ in it
string line;
ifstream myfile (patchFile.c_str());
if (myfile.is_open()) {
while (! myfile.eof() ) {
getline (myfile,line);
if(line.find("adc~;")!=-1) {
hasADC = true;
break;
}
}
myfile.close();
}
if(hasADC) {
printf("Has input\n");
} else {
printf("No input\n");
}
running = true;
}
