robert@501: /*
robert@501:  ____  _____ _        _    
robert@501: | __ )| ____| |      / \   
robert@501: |  _ \|  _| | |     / _ \  
robert@501: | |_) | |___| |___ / ___ \ 
robert@501: |____/|_____|_____/_/   \_\
robert@501: 
robert@501: The platform for ultra-low latency audio and sensor processing
robert@501: 
robert@501: http://bela.io
robert@501: 
robert@501: A project of the Augmented Instruments Laboratory within the
robert@501: Centre for Digital Music at Queen Mary University of London.
robert@501: http://www.eecs.qmul.ac.uk/~andrewm
robert@501: 
robert@501: (c) 2016 Augmented Instruments Laboratory: Andrew McPherson,
robert@501:   Astrid Bin, Liam Donovan, Christian Heinrichs, Robert Jack,
robert@501:   Giulio Moro, Laurel Pardue, Victor Zappi. All rights reserved.
robert@501: 
robert@501: The Bela software is distributed under the GNU Lesser General Public License
robert@501: (LGPL 3.0), available here: https://www.gnu.org/licenses/lgpl-3.0.txt
robert@501: */
robert@501: 
robert@501: 
robert@501: #include <Bela.h> 
robert@501: #include <cmath>
robert@501: #include <WriteFile.h>
robert@501: 
robert@501: float gPhase1, gPhase2;
robert@501: float gFrequency1, gFrequency2;
robert@501: float gInverseSampleRate;
robert@501: 
robert@501: WriteFile file1;
robert@501: WriteFile file2;
robert@501: 
robert@501: bool setup(BelaContext *context, void *userData)
robert@501: {
robert@501: 	gInverseSampleRate = 1.0/context->audioSampleRate;
robert@501: 	file1.init("out1.m"); //set the file name to write to
robert@501: 	file1.setHeader("myvar=[\n"); //set a line to be printed at the beginning of the file
robert@501: 	file1.setFooter("];\n"); //set a line to be printed at the end of the file
robert@501: 	file1.setEcho(true); // enable echo to the console (as well as to the file)
robert@501: 	file1.setFormat("%.5f %.10f %f\n"); // set the format that you want to use for your output. Please use %f only (with modifiers)
robert@501: 	file2.init("out2.m");
robert@501: 	file2.setHeader("input=[\n");
robert@501: 	file2.setFooter("];\n");
robert@501: 	file2.setEcho(false);
robert@501: 	file2.setFormat("%f\n");
robert@501: 	gPhase1 = 0.0;
robert@501: 	gPhase2 = 0.0;
robert@501: 
robert@501: 	gFrequency1 = 200.0;
robert@501: 	gFrequency2 = 201.0;
robert@501: 	return true; 
robert@501: }
robert@501: 
robert@501: void render(BelaContext *context, void *userData)
robert@501: {
robert@501: 	static int count = 0;
robert@501: 	if((count&16383) == 0){
robert@501:     	file2.log(context->audioIn, context->audioFrames); //write the input buffer every so often
robert@501: 	}
robert@501: 	for(unsigned int n = 0; n < context->audioFrames; n++) {
robert@501: 	    float chn1 = sinf(gPhase1);
robert@501: 	    float chn2 = sinf(gPhase2);
robert@501: 	    gPhase1 += 2.0 * M_PI * gFrequency1 * gInverseSampleRate;
robert@501: 	    gPhase2 += 2.0 * M_PI * gFrequency2 * gInverseSampleRate;
robert@501: 		if(gPhase1 > 2.0 * M_PI)
robert@501: 			gPhase1 -= 2.0 * M_PI;
robert@501: 		if(gPhase2 > 2.0 * M_PI)
robert@501: 			gPhase2 -= 2.0 * M_PI;
robert@501: 		if( (count&511) == 0){
robert@501: 			file1.log(chn1);
robert@501: 			file1.log(chn2);
robert@501: 			file1.log(count);
robert@501: 		}
robert@501: 		count++;
robert@501: 	}
robert@501: }
robert@501: 
robert@501: // cleanup_render() is called once at the end, after the audio has stopped.
robert@501: // Release any resources that were allocated in initialise_render().
robert@501: 
robert@501: void cleanup(BelaContext *context, void *userData)
robert@501: {
robert@501:     
robert@501: }
robert@501: 
robert@501: /* ------------ Project Explantation ------------ */
robert@501: 
robert@501: /**
robert@502: \example write-file/render.cpp
robert@501: 
robert@501: Writing data to a file
robert@501: ---------------------------
robert@501: 
robert@501: This sketch demonstrates how to log values from within a project for later processing or analysis.
robert@501: 
robert@501: */
robert@501: