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> |
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date | Fri, 27 May 2016 14:34:41 +0100 |
parents | dbeed520b014 |
children | 1feb9c23ac57 |
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300:dbeed520b014 | 301:e4392164b458 |
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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 } |