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64 lines
1.6 KiB
64 lines
1.6 KiB
5 months ago
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/*
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synth_dexed
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synth_dexed is a port of the Dexed sound engine (https://github.com/asb2m10/dexed)
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as library for the Teensy-3.5/3.6/4.x with an audio shield.
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Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
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(c)2018-2021 H. Wirtz <wirtz@parasitstudio.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "synth_dexed.h"
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#if defined(TEENSYDUINO)
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void AudioSynthDexed::update(void)
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{
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if (in_update == true)
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{
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xrun++;
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return;
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}
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else
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in_update = true;
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elapsedMicros render_time;
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audio_block_t *block;
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block = allocate();
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if (!block)
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{
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in_update = false;
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return;
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}
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getSamples(block->data, AUDIO_BLOCK_SAMPLES);
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if (render_time > audio_block_time_us) // everything greater audio_block_time_us (2.9ms for buffer size of 128) is a buffer underrun!
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xrun++;
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if (render_time > render_time_max)
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render_time_max = render_time;
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transmit(block, 0);
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release(block);
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in_update = false;
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};
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#endif
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