@@ -63,6 +63,7 @@ | |||
#include "output_i2s.h" | |||
#include "output_pwm.h" | |||
#include "play_memory.h" | |||
#include "play_queue.h" | |||
#include "play_sd_raw.h" | |||
#include "play_sd_wav.h" | |||
#include "synth_tonesweep.h" |
@@ -0,0 +1,67 @@ | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include "play_queue.h" | |||
#include "utility/dspinst.h" | |||
int16_t * AudioPlayQueue::getBuffer(void) | |||
{ | |||
while (1) { | |||
userblock = allocate(); | |||
if (userblock) return userblock->data; | |||
yield(); | |||
} | |||
} | |||
void AudioPlayQueue::playBuffer(void) | |||
{ | |||
uint32_t h; | |||
if (!userblock) return; | |||
h = head + 1; | |||
if (h >= 32) h = 0; | |||
while (tail == h) ; // wait until space in the queue | |||
queue[h] = userblock; | |||
head = h; | |||
userblock = NULL; | |||
} | |||
void AudioPlayQueue::update(void) | |||
{ | |||
audio_block_t *block; | |||
uint32_t t; | |||
t = tail; | |||
if (t != head) { | |||
if (++t >= 32) t = 0; | |||
block = queue[t]; | |||
tail = t; | |||
transmit(block); | |||
release(block); | |||
} | |||
} | |||
@@ -0,0 +1,50 @@ | |||
/* Audio Library for Teensy 3.X | |||
* Copyright (c) 2014, Paul Stoffregen, paul@pjrc.com | |||
* | |||
* Development of this audio library was funded by PJRC.COM, LLC by sales of | |||
* Teensy and Audio Adaptor boards. Please support PJRC's efforts to develop | |||
* open source software by purchasing Teensy or other PJRC products. | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice, development funding notice, and this permission | |||
* notice shall be included in all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#ifndef play_queue_h_ | |||
#define play_queue_h_ | |||
#include "AudioStream.h" | |||
class AudioPlayQueue : public AudioStream | |||
{ | |||
public: | |||
AudioPlayQueue(void) : AudioStream(0, NULL), | |||
userblock(NULL), head(0), tail(0) { } | |||
void play(int16_t data); | |||
void play(const int16_t *data, uint32_t len); | |||
int16_t * getBuffer(void); | |||
void playBuffer(void); | |||
void stop(void); | |||
//bool isPlaying(void) { return playing; } | |||
virtual void update(void); | |||
private: | |||
audio_block_t *queue[32]; | |||
audio_block_t *userblock; | |||
volatile uint8_t head, tail; | |||
}; | |||
#endif |