220 lines
5.5 KiB
C
220 lines
5.5 KiB
C
/* Copyright © 2020 tyrolyean
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*
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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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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include "sound.h"
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#include "sound.h"
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#include "dac.h"
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#include <avr/pgmspace.h>
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#include <stddef.h>
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const struct tone_t computer_room[] PROGMEM =
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{
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_SQUARE, 10,100},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SINE, 10,50},
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{DAC_MODE_SINE, -10,50},
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{DAC_MODE_SQUARE, -2,100},
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{DAC_MODE_SQUARE, 8,100},
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{DAC_MODE_SQUARE, -2,100},
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{DAC_MODE_SQUARE, 8,100},
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{DAC_MODE_SQUARE, -2,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 12,50},
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{DAC_MODE_SINE, -8,50},
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{DAC_MODE_SINE, 12,50},
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{DAC_MODE_SINE, -8,50},
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{DAC_MODE_SQUARE, -3,100},
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{DAC_MODE_SQUARE, 7,100},
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{DAC_MODE_SQUARE, -3,100},
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{DAC_MODE_SQUARE, 7,100},
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{DAC_MODE_SQUARE, -3,100},
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{DAC_MODE_NOISE, 0,200},
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{DAC_MODE_SINE, 13,50},
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{DAC_MODE_SINE, -7,50},
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{DAC_MODE_SINE, 13,50},
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{DAC_MODE_SINE, -7,50},
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TRACK_END_MARKER
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};
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const struct tone_t lonely_road[] PROGMEM =
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{
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,200},
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{DAC_MODE_SQUARE, -4,200},
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{DAC_MODE_SQUARE, -5,200},
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{DAC_MODE_SQUARE, -3,400},
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{DAC_MODE_SQUARE, -4,400},
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{DAC_MODE_SQUARE, -5,400},
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{DAC_MODE_SQUARE, -3,400},
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{DAC_MODE_SQUARE, -4,400},
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{DAC_MODE_SQUARE, -5,400},
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{DAC_MODE_SQUARE, -3,800},
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{DAC_MODE_SQUARE, -4,900},
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{DAC_MODE_SQUARE, -5,1000},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,100},
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{DAC_MODE_SAW, 0,200},
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{DAC_MODE_SQUARE, 0,100},
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{DAC_MODE_NOISE, 0,100},
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{DAC_MODE_SINE, 0,200},
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{DAC_MODE_SINE, 0,100},
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{DAC_MODE_NOISE, 0,100},
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{DAC_MODE_SINE, 0,200},
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{DAC_MODE_SQUARE, 0,100},
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TRACK_END_MARKER
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};
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const struct tone_t *current_track = NULL;
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/* Loops a track indefinitely and changes voices according to predefined tables.
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* A new track resets the internal state. A voice with a length of 0ms */
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void update_sound(){
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static uint16_t audio_time = 0;
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static size_t tone_pointer = 0x00;
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static struct tone_t current_tone = {DAC_MODE_SILENT, 0,0};
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if(current_track == NULL){
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/* ABORT */
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audio_time = 0x00;
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return;
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}
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audio_time++;
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static const struct tone_t * old_track = NULL;
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if(audio_time >= current_tone.length ||
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current_track != old_track){
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if(old_track != current_track){
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tone_pointer = 0;
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audio_time = 0x00;
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old_track = current_track;
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}
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memcpy_P(¤t_tone,&(current_track[tone_pointer]),
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sizeof(current_tone));
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if(current_tone.length == 0){
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tone_pointer = 0;
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memcpy_P(¤t_tone,&(current_track[tone_pointer]),
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sizeof(current_tone));
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}
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dac_mode = current_tone.waveform;
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dac_frequency_deviation = current_tone.frequency_deviation;
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audio_time = 0x00;
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tone_pointer++;
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}
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return;
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}
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