Mercurial > hg > beaglert
comparison examples/basic/render.cpp @ 301:e4392164b458 prerelease
RENAMED BeagleRT to Bela AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA, scripts probably not working
| author | Giulio Moro <giuliomoro@yahoo.it> | 
|---|---|
| date | Fri, 27 May 2016 14:34:41 +0100 | 
| parents | dbeed520b014 | 
| children | 1feb9c23ac57 | 
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| 300:dbeed520b014 | 301:e4392164b458 | 
|---|---|
| 4 * Created on: Oct 24, 2014 | 4 * Created on: Oct 24, 2014 | 
| 5 * Author: parallels | 5 * Author: parallels | 
| 6 */ | 6 */ | 
| 7 | 7 | 
| 8 | 8 | 
| 9 #include <BeagleRT.h> | 9 #include <Bela.h> | 
| 10 #include <cmath> | 10 #include <cmath> | 
| 11 #include <Utilities.h> | 11 #include <Utilities.h> | 
| 12 | 12 | 
| 13 float gFrequency = 440.0; | 13 float gFrequency = 440.0; | 
| 14 float gPhase; | 14 float gPhase; | 
| 21 // userData holds an opaque pointer to a data structure that was passed | 21 // userData holds an opaque pointer to a data structure that was passed | 
| 22 // in from the call to initAudio(). | 22 // in from the call to initAudio(). | 
| 23 // | 23 // | 
| 24 // Return true on success; returning false halts the program. | 24 // Return true on success; returning false halts the program. | 
| 25 | 25 | 
| 26 bool setup(BeagleRTContext *context, void *userData) | 26 bool setup(BelaContext *context, void *userData) | 
| 27 { | 27 { | 
| 28 // Retrieve a parameter passed in from the initAudio() call | 28 // Retrieve a parameter passed in from the initAudio() call | 
| 29 if(userData != 0) | 29 if(userData != 0) | 
| 30 gFrequency = *(float *)userData; | 30 gFrequency = *(float *)userData; | 
| 31 | 31 | 
| 38 // render() is called regularly at the highest priority by the audio engine. | 38 // render() is called regularly at the highest priority by the audio engine. | 
| 39 // Input and output are given from the audio hardware and the other | 39 // Input and output are given from the audio hardware and the other | 
| 40 // ADCs and DACs (if available). If only audio is available, numMatrixFrames | 40 // ADCs and DACs (if available). If only audio is available, numMatrixFrames | 
| 41 // will be 0. | 41 // will be 0. | 
| 42 | 42 | 
| 43 void render(BeagleRTContext *context, void *userData) | 43 void render(BelaContext *context, void *userData) | 
| 44 { | 44 { | 
| 45 for(unsigned int n = 0; n < context->audioFrames; n++) { | 45 for(unsigned int n = 0; n < context->audioFrames; n++) { | 
| 46 float out = 0.8f * sinf(gPhase); | 46 float out = 0.8f * sinf(gPhase); | 
| 47 gPhase += 2.0 * M_PI * gFrequency * gInverseSampleRate; | 47 gPhase += 2.0 * M_PI * gFrequency * gInverseSampleRate; | 
| 48 if(gPhase > 2.0 * M_PI) | 48 if(gPhase > 2.0 * M_PI) | 
| 61 } | 61 } | 
| 62 | 62 | 
| 63 // cleanup() is called once at the end, after the audio has stopped. | 63 // cleanup() is called once at the end, after the audio has stopped. | 
| 64 // Release any resources that were allocated in setup(). | 64 // Release any resources that were allocated in setup(). | 
| 65 | 65 | 
| 66 void cleanup(BeagleRTContext *context, void *userData) | 66 void cleanup(BelaContext *context, void *userData) | 
| 67 { | 67 { | 
| 68 | 68 | 
| 69 } | 69 } | 
