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257 lines
8.7 KiB
257 lines
8.7 KiB
/*
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MicroDexed
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MicroDexed is a port of the Dexed sound engine
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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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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <Arduino.h>
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#include <ArduinoJson.h>
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#include <Audio.h>
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#include "config.h"
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#include "drums.h"
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extern uint8_t num_drums;
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extern drum_config_t drum_config[DRUM_MAX_INSTRUMENTS];
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void read_drum_config(void)
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{
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File json;
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DynamicJsonDocument drums_json(4096);
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AudioNoInterrupts();
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if (SD.exists("/DRM/CFGDrums.json"))
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{
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#ifdef DEBUG
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Serial.println(F("Found drum configuration file."));
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#endif
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json = SD.open("/DRM/CFGDrums.json");
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if (json)
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{
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deserializeJson(drums_json, json);
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json.close();
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num_drums = drums_json.size();
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#ifdef DEBUG
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Serial.print(F("Drum Objects: "));
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Serial.println(num_drums);
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if (num_drums > DRUM_MAX_INSTRUMENTS)
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Serial.println(F("*** Maximum number of drum samples exceeded! ***"));
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//Serial.println(F("Drum Configuration:"));
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//serializeJsonPretty(drums_json, Serial);
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//Serial.println();
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#endif
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num_drums = constrain(num_drums, 0, DRUM_MAX_INSTRUMENTS);
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}
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}
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AudioInterrupts();
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uint8_t drum = 0;
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JsonObject root = drums_json["drums"].as<JsonObject>();
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for (JsonPair kv : root)
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{
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sprintf(drum_config[drum].filename, "/drm/%s.wav", kv.key().c_str());
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if (!SD.exists(drum_config[drum].filename))
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{
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#ifdef DEBUG
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Serial.print(F("Cannot find WAV file ["));
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Serial.print(drum_config[drum].filename);
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Serial.println(F("]"));
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#endif
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continue;
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}
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JsonObject drum_root = drums_json["drums"][kv.key().c_str()].as<JsonObject>();
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for (JsonPair drum_kv : drum_root)
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{
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if (strcmp(drum_kv.key().c_str(), "drum_class") == 0)
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{
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if (drum_kv.value().is<const char*>())
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{
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if (strcmp(drum_kv.value().as<const char*>(), "DRUM_NONE") == 0)
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drum_config[drum].drum_class = DRUM_NONE;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_BASS") == 0)
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drum_config[drum].drum_class = DRUM_BASS;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_SNARE") == 0)
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drum_config[drum].drum_class = DRUM_SNARE;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_HIHAT") == 0)
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drum_config[drum].drum_class = DRUM_HIHAT;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_HANDCLAP") == 0)
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drum_config[drum].drum_class = DRUM_HANDCLAP;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_RIDE") == 0)
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drum_config[drum].drum_class = DRUM_RIDE;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_CHRASH") == 0)
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drum_config[drum].drum_class = DRUM_CHRASH;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_LOWTOM") == 0)
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drum_config[drum].drum_class = DRUM_LOWTOM;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_MIDTOM") == 0)
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drum_config[drum].drum_class = DRUM_MIDTOM;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_HIGHTOM") == 0)
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drum_config[drum].drum_class = DRUM_HIGHTOM;
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else if (strcmp(drum_kv.value().as<const char*>(), "DRUM_PERCUSSION") == 0)
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drum_config[drum].drum_class = DRUM_PERCUSSION;
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}
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}
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else if (strcmp(drum_kv.key().c_str(), "midinote") == 0)
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{
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if (drum_kv.value().is<const char*>())
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{
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uint8_t note_number = 0;
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uint8_t oct = 0;
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char midi_note[4];
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strcpy(midi_note, drum_kv.value().as<const char*>());
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switch (midi_note[0])
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{
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case 'A':
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if (midi_note[1] == '#')
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{
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note_number = 1;
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oct = midi_note[2] - 48;
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}
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else
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{
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note_number = 0;
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oct = midi_note[1] - 48;
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}
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break;
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case 'B':
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note_number = 2;
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oct = midi_note[1] - 48;
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break;
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case 'C':
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if (midi_note[1] == '#')
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{
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note_number = 4;
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oct = midi_note[2] - 48;
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}
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else
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{
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note_number = 3;
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oct = midi_note[1] - 48;
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}
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break;
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case 'D':
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if (midi_note[1] == '#')
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{
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note_number = 6;
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oct = midi_note[2] - 48;
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}
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else
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{
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note_number = 5;
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oct = midi_note[1] - 48;
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}
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break;
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case 'E':
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note_number = 7;
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oct = midi_note[1] - 48;
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break;
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case 'F':
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if (midi_note[1] == '#')
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{
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note_number = 9;
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oct = midi_note[2] - 48;
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}
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else
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{
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note_number = 8;
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oct = midi_note[1] - 48;
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}
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break;
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case 'G':
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if (midi_note[1] == '#')
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{
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note_number = 11;
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oct = midi_note[2] - 48;
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}
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else
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{
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note_number = 10;
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oct = midi_note[1] - 48;
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}
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break;
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}
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drum_config[drum].midinote = note_number + 9 + (oct * 12);
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}
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}
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else if (strcmp(drum_kv.key().c_str(), "shortname") == 0)
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{
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memset(drum_config[drum].shortname, 0, 2);
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if (drum_kv.value().is<const char*>())
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drum_config[drum].shortname[0] = drum_kv.value().as<const char*>()[0];
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}
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else if (strcmp(drum_kv.key().c_str(), "pan") == 0)
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{
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if (drum_kv.value().is<float>())
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drum_config[drum].pan = drum_kv.value().as<float>();
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if (drum_kv.value().is<int>())
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drum_config[drum].pan = float(drum_kv.value().as<int>());
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}
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else if (strcmp(drum_kv.key().c_str(), "vol_max") == 0)
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{
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if (drum_kv.value().is<float>())
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drum_config[drum].vol_max = drum_kv.value().as<float>();
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if (drum_kv.value().is<int>())
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drum_config[drum].vol_max = float(drum_kv.value().as<int>());
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}
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else if (strcmp(drum_kv.key().c_str(), "vol_min") == 0)
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{
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if (drum_kv.value().is<float>())
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drum_config[drum].vol_min = drum_kv.value().as<float>();
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if (drum_kv.value().is<int>())
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drum_config[drum].vol_min = float(drum_kv.value().as<int>());
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}
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else if (strcmp(drum_kv.key().c_str(), "reverb_send") == 0)
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{
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if (drum_kv.value().is<float>())
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drum_config[drum].reverb_send = drum_kv.value().as<float>();
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if (drum_kv.value().is<int>())
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drum_config[drum].reverb_send = float(drum_kv.value().as<int>());
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}
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}
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#ifdef DEBUG
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Serial.print(F("[Drum "));
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Serial.print(drum, DEC);
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Serial.println(F("]"));
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Serial.print(F("drum_class="));
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Serial.println(drum_config[drum].drum_class, DEC);
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Serial.print(F("midinote="));
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Serial.println(drum_config[drum].midinote, DEC);
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Serial.print(F("filename="));
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Serial.println(drum_config[drum].filename);
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Serial.print(F("shortname="));
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Serial.println(drum_config[drum].shortname);
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Serial.print(F("pan="));
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Serial.println(drum_config[drum].pan);
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Serial.print(F("vol_max="));
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Serial.println(drum_config[drum].vol_max);
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Serial.print(F("vol_min="));
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Serial.println(drum_config[drum].vol_min);
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Serial.print(F("reverb_send="));
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Serial.println(drum_config[drum].reverb_send);
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#endif
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drum++;
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}
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}
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