giuliomoro@24: /*
giuliomoro@24:  * render.cpp
giuliomoro@24:  *
giuliomoro@24:  *  Created on: Oct 24, 2014
giuliomoro@24:  *      Author: parallels
giuliomoro@24:  */
giuliomoro@24: 
giuliomoro@24: #include "../../include/RTAudioSettings.h"
giuliomoro@24: #include "../../include/render.h"
giuliomoro@24: #include <cmath>
giuliomoro@24: #include "../../include/client.h"
giuliomoro@24: #include "../../include/RTAudio.h"	// to schedule lower prio parallel process
giuliomoro@24: #include <rtdk.h>
giuliomoro@24: float gFrequency;
giuliomoro@24: float gPhase;
giuliomoro@24: float gInverseSampleRate;
giuliomoro@24: int gCount=0;
giuliomoro@24: networkData networkObject;
giuliomoro@24: AuxiliaryTask transmitReceiveDataTask;
giuliomoro@24: 
giuliomoro@24: void transmitReceiveData(){
giuliomoro@24: 	printf("transmitAndReceiveData\n");
giuliomoro@24: 	while(!gShouldStop){
giuliomoro@24: 		//sendMessage(networkObject);
giuliomoro@24: 		//receiveMessage(networkObject);
giuliomoro@24: 		usleep(10000);
giuliomoro@24: 	}
giuliomoro@24: 	closeSockets();
giuliomoro@24: }
giuliomoro@24: 
giuliomoro@24: // initialise_render() is called once before the audio rendering starts.
giuliomoro@24: // Use it to perform any initialisation and allocation which is dependent
giuliomoro@24: // on the period size or sample rate.
giuliomoro@24: //
giuliomoro@24: // userData holds an opaque pointer to a data structure that was passed
giuliomoro@24: // in from the call to initAudio().
giuliomoro@24: //
giuliomoro@24: // Return true on success; returning false halts the program.
giuliomoro@24: bool initialise_render(int numMatrixChannels, int numDigitalChannels, int numAudioChannels,
giuliomoro@24: 					   int numMatrixFramesPerPeriod,
giuliomoro@24: 					   int numAudioFramesPerPeriod,
giuliomoro@24: 					   float matrixSampleRate, float audioSampleRate,
giuliomoro@24: 					   void *userData, RTAudioSettings *settings)
giuliomoro@24: {
giuliomoro@24: 	// Retrieve a parameter passed in from the initAudio() call
giuliomoro@24: 	gFrequency = *(float *)userData;
giuliomoro@24: 
giuliomoro@24: 	gInverseSampleRate = 1.0 / audioSampleRate;
giuliomoro@24: 	gPhase = 0.0;
giuliomoro@24: 
giuliomoro@24: 	networkObject.counter=&gCount;
giuliomoro@24: 	networkObject.variables[0]=&gFrequency;
giuliomoro@24: 	networkObject.variables[1]=&gPhase;
giuliomoro@24: 	networkObject.numVariables=2;
giuliomoro@24: 	setupSockets(settings->receivePort, settings->transmitPort, settings->serverName);
giuliomoro@24: 	transmitReceiveDataTask=createAuxiliaryTaskLoop(*transmitReceiveData, 50, "transmit-receive-data");
giuliomoro@24: 	//scheduleAuxiliaryTask(transmitReceiveDataTask); //here it does not work
giuliomoro@24: 	return true;
giuliomoro@24: }
giuliomoro@24: 
giuliomoro@24: // render() is called regularly at the highest priority by the audio engine.
giuliomoro@24: // Input and output are given from the audio hardware and the other
giuliomoro@24: // ADCs and DACs (if available). If only audio is available, numMatrixFrames
giuliomoro@24: // will be 0.
giuliomoro@24: 
giuliomoro@24: void render(int numAnalogFrames, int numAudioFrames, int numDigitalFrames, float *audioIn, float *audioOut,
giuliomoro@24: 		float *analogIn, float *analogOut, uint32_t *digital)
giuliomoro@24: {
giuliomoro@24: 	for(int n = 0; n < numAudioFrames; n++) {
giuliomoro@24: 		float out = 0.7f * sinf(gPhase);
giuliomoro@24: 		gPhase += 2.0 * M_PI * gFrequency * gInverseSampleRate;
giuliomoro@24: 		if(gPhase > 2.0 * M_PI)
giuliomoro@24: 			gPhase -= 2.0 * M_PI;
giuliomoro@24: 
giuliomoro@24: 		for(int channel = 0; channel < gNumAudioChannels; channel++)
giuliomoro@24: 			audioOut[n * gNumAudioChannels + channel] = out;
giuliomoro@24: 		if(gCount==0){
giuliomoro@24: 			scheduleAuxiliaryTask(transmitReceiveDataTask);
giuliomoro@24: 		}
giuliomoro@24: 		gCount++;
giuliomoro@24: 	}
giuliomoro@24: }
giuliomoro@24: 
giuliomoro@24: // cleanup_render() is called once at the end, after the audio has stopped.
giuliomoro@24: // Release any resources that were allocated in initialise_render().
giuliomoro@24: 
giuliomoro@24: void cleanup_render()
giuliomoro@24: {
giuliomoro@24: }