giuliomoro@301: #include <Bela.h> 
giuliomoro@153: #include <cmath>
giuliomoro@153: #include <WriteFile.h>
giuliomoro@153: 
giuliomoro@153: float gPhase1, gPhase2;
giuliomoro@153: float gFrequency1, gFrequency2;
giuliomoro@153: float gInverseSampleRate;
giuliomoro@153: 
giuliomoro@153: WriteFile file1;
giuliomoro@153: WriteFile file2;
giuliomoro@153: 
giuliomoro@301: bool setup(BelaContext *context, void *userData)
giuliomoro@153: {
giuliomoro@153: 	gInverseSampleRate = 1.0/context->audioSampleRate;
giuliomoro@153: 	file1.init("out1.m"); //set the file name to write to
giuliomoro@153: 	file1.setHeader("myvar=[\n"); //set a line to be printed at the beginning of the file
giuliomoro@153: 	file1.setFooter("];\n"); //set a line to be printed at the end of the file
giuliomoro@153: 	file1.setEcho(true); // enable echo to the console (as well as to the file)
giuliomoro@153: 	file1.setFormat("%.5f %.10f %f\n"); // set the format that you want to use for your output. Please use %f only (with modifiers)
giuliomoro@153: 	file2.init("out2.m");
giuliomoro@153: 	file2.setHeader("input=[\n");
giuliomoro@153: 	file2.setFooter("];\n");
giuliomoro@153: 	file2.setEcho(false);
giuliomoro@153: 	file2.setFormat("%f\n");
giuliomoro@153: 	gPhase1 = 0.0;
giuliomoro@153: 	gPhase2 = 0.0;
giuliomoro@153: 
giuliomoro@153: 	gFrequency1 = 200.0;
giuliomoro@153: 	gFrequency2 = 201.0;
giuliomoro@153: 	return true; 
giuliomoro@153: }
giuliomoro@153: 
giuliomoro@301: void render(BelaContext *context, void *userData)
giuliomoro@153: {
giuliomoro@153: 	static int count = 0;
giuliomoro@153: 	if((count&16383) == 0){
giuliomoro@153:     	file2.log(context->audioIn, context->audioFrames); //write the input buffer every so often
giuliomoro@153: 	}
giuliomoro@153: 	for(unsigned int n = 0; n < context->audioFrames; n++) {
giuliomoro@153: 	    float chn1 = sinf(gPhase1);
giuliomoro@153: 	    float chn2 = sinf(gPhase2);
giuliomoro@153: 	    gPhase1 += 2.0 * M_PI * gFrequency1 * gInverseSampleRate;
giuliomoro@153: 	    gPhase2 += 2.0 * M_PI * gFrequency2 * gInverseSampleRate;
giuliomoro@153: 		if(gPhase1 > 2.0 * M_PI)
giuliomoro@153: 			gPhase1 -= 2.0 * M_PI;
giuliomoro@153: 		if(gPhase2 > 2.0 * M_PI)
giuliomoro@153: 			gPhase2 -= 2.0 * M_PI;
giuliomoro@153: 		if( (count&511) == 0){
giuliomoro@153: 			file1.log(chn1);
giuliomoro@153: 			file1.log(chn2);
giuliomoro@153: 			file1.log(count);
giuliomoro@153: 		}
giuliomoro@153: 		count++;
giuliomoro@153: 	}
giuliomoro@153: }
giuliomoro@153: 
giuliomoro@153: // cleanup_render() is called once at the end, after the audio has stopped.
giuliomoro@153: // Release any resources that were allocated in initialise_render().
giuliomoro@153: 
giuliomoro@301: void cleanup(BelaContext *context, void *userData)
giuliomoro@153: {
giuliomoro@153:     
giuliomoro@153: }