Jonne Valola / PokittoLib Featured

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   YATTT sd_map_test cPong SnowDemo ... more

PokittoLib

Library for programming Pokitto hardware

How to Use

  1. Import this library to online compiler (see button "import" on the right hand side
  2. DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
  3. Change My_settings.h according to your project
  4. Start coding!

POKITTO_LIBS/Synth/Synth_oscfuncs.cpp@71:531419862202, 2019-12-25 (annotated)

Committer:
Pokitto
Date:
Wed Dec 25 23:59:52 2019 +0000
Revision:
71:531419862202
Parent:
66:6281a40d73e6 
Changed Mode2 C++ refresh code (graphical errors)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 31:f4b9b85c7b62 1 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 2 /*!
Pokitto 31:f4b9b85c7b62 3 @file Synth_oscfuncs.cpp
Pokitto 31:f4b9b85c7b62 4 @author Jonne Valola
Pokitto 31:f4b9b85c7b62 5
Pokitto 31:f4b9b85c7b62 6 @section LICENSE
Pokitto 31:f4b9b85c7b62 7
Pokitto 31:f4b9b85c7b62 8 Software License Agreement (BSD License)
Pokitto 31:f4b9b85c7b62 9
Pokitto 31:f4b9b85c7b62 10 Copyright (c) 2016, Jonne Valola
Pokitto 31:f4b9b85c7b62 11 All rights reserved.
Pokitto 31:f4b9b85c7b62 12
Pokitto 31:f4b9b85c7b62 13 Redistribution and use in source and binary forms, with or without
Pokitto 31:f4b9b85c7b62 14 modification, are permitted provided that the following conditions are met:
Pokitto 31:f4b9b85c7b62 15 1. Redistributions of source code must retain the above copyright
Pokitto 31:f4b9b85c7b62 16 notice, this list of conditions and the following disclaimer.
Pokitto 31:f4b9b85c7b62 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 31:f4b9b85c7b62 18 notice, this list of conditions and the following disclaimer in the
Pokitto 31:f4b9b85c7b62 19 documentation and/or other materials provided with the distribution.
Pokitto 31:f4b9b85c7b62 20 3. Neither the name of the copyright holders nor the
Pokitto 31:f4b9b85c7b62 21 names of its contributors may be used to endorse or promote products
Pokitto 31:f4b9b85c7b62 22 derived from this software without specific prior written permission.
Pokitto 31:f4b9b85c7b62 23
Pokitto 31:f4b9b85c7b62 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 31:f4b9b85c7b62 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 31:f4b9b85c7b62 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 31:f4b9b85c7b62 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 31:f4b9b85c7b62 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 31:f4b9b85c7b62 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 31:f4b9b85c7b62 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 31:f4b9b85c7b62 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 31:f4b9b85c7b62 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 31:f4b9b85c7b62 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 31:f4b9b85c7b62 34 */
Pokitto 31:f4b9b85c7b62 35 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 36
Pokitto 31:f4b9b85c7b62 37 #include "Synth.h"
Pokitto 31:f4b9b85c7b62 38
Pokitto 31:f4b9b85c7b62 39 /** OSCILLATOR FUNCTIONS **/
Pokitto 31:f4b9b85c7b62 40
Pokitto 31:f4b9b85c7b62 41 void setOSC(OSC* o,byte on=1, byte wave=1, byte loop=0, byte echo=0, byte adsr=0,
Pokitto 66:6281a40d73e6 42 uint8_t notenumber=25, uint16_t volume=127,
Pokitto 31:f4b9b85c7b62 43 uint16_t attack=0, uint16_t decay=0, uint16_t sustain=0, uint16_t release=0,
Pokitto 31:f4b9b85c7b62 44 int16_t maxbend=0, int16_t bendrate=0, uint8_t arpmode = 0, uint8_t overdrive=0, uint8_t kick=0){
Pokitto 31:f4b9b85c7b62 45 //Serial.println("SetOsc "); osc1
Pokitto 31:f4b9b85c7b62 46 o->on = on;
Pokitto 66:6281a40d73e6 47 o->duration = -1; //max this out for the time being
Pokitto 31:f4b9b85c7b62 48 o->overdrive = overdrive;
Pokitto 31:f4b9b85c7b62 49 o->kick = kick;
Pokitto 31:f4b9b85c7b62 50 o->wave = wave;
Pokitto 31:f4b9b85c7b62 51 o->loop = loop;
Pokitto 31:f4b9b85c7b62 52 o->echo = echo; //echo shifts left 8 steps to zero
Pokitto 31:f4b9b85c7b62 53 o->echodiv = 0;
Pokitto 31:f4b9b85c7b62 54 o->adsr = adsr;
Pokitto 31:f4b9b85c7b62 55 if (arpmode) {
Pokitto 31:f4b9b85c7b62 56 if (arpmode < 4) {o->arpmode = 1; o->arpspeed = arpmode;}
Pokitto 31:f4b9b85c7b62 57 else if (arpmode < 7) {o->arpmode = 2; o->arpspeed = arpmode-3;}
Pokitto 31:f4b9b85c7b62 58 else if (arpmode < 10) {o->arpmode = 3; o->arpspeed = arpmode-6; } // vibrato trial
Pokitto 31:f4b9b85c7b62 59 else if (arpmode < 13) {o->arpmode = 4; o->arpspeed = arpmode-9; } // octave trial
Pokitto 31:f4b9b85c7b62 60 else if (arpmode < 16) {o->arpmode = 5; o->arpspeed = arpmode-12; } // funk trial*/
Pokitto 31:f4b9b85c7b62 61 } else o->arpmode = 0;
Pokitto 31:f4b9b85c7b62 62 o->arpstep = 0;
Pokitto 31:f4b9b85c7b62 63 o->count = 0;
Pokitto 31:f4b9b85c7b62 64 noiseval = xorshift16(); //random(0,0xFFFF);
Pokitto 31:f4b9b85c7b62 65
Pokitto 31:f4b9b85c7b62 66 o->cinc = cincs[notenumber]; // direct cinc from table, no calculation
Pokitto 31:f4b9b85c7b62 67 o->tonic = notenumber; // save tonic for arpeggio use
Pokitto 31:f4b9b85c7b62 68 if (wave == 2) o->cinc >>= 1; // correct pitch for saw wave
Pokitto 31:f4b9b85c7b62 69 if (wave == 4) o->cinc <<= 1; // enable higher pitch for pure noise
Pokitto 66:6281a40d73e6 70 if (wave == 6) o->samplestep = (o->cinc/(cincs[37]>>8));
Pokitto 31:f4b9b85c7b62 71 o->vol = volume << 8;//volume;
Pokitto 31:f4b9b85c7b62 72
Pokitto 31:f4b9b85c7b62 73 if (adsr) {
Pokitto 31:f4b9b85c7b62 74 o->attack = attack;
Pokitto 31:f4b9b85c7b62 75 o->decay = decay;
Pokitto 66:6281a40d73e6 76 o->sustain = sustain<<8; //sustain needs to be multiplied by 256 also
Pokitto 31:f4b9b85c7b62 77 o->release = release;
Pokitto 31:f4b9b85c7b62 78 o->adsrphase = 1;
Pokitto 31:f4b9b85c7b62 79 if (!o->attack) o->adsrvol = o->vol; // start directly, no attack ramp
Pokitto 31:f4b9b85c7b62 80 else o->adsrvol = 0;
Pokitto 31:f4b9b85c7b62 81 } else {
Pokitto 31:f4b9b85c7b62 82 o->attack = 0;
Pokitto 31:f4b9b85c7b62 83 o->decay = 0;
Pokitto 31:f4b9b85c7b62 84 o->sustain = 0;
Pokitto 31:f4b9b85c7b62 85 o->release = 0;
Pokitto 31:f4b9b85c7b62 86 o->adsrphase = 0;
Pokitto 31:f4b9b85c7b62 87 o->adsrvol = o->vol; // will stay same all the time
Pokitto 31:f4b9b85c7b62 88 }
Pokitto 31:f4b9b85c7b62 89
Pokitto 66:6281a40d73e6 90 o->pitchbend = 0; //this has to be zeroed always!
Pokitto 31:f4b9b85c7b62 91 if (bendrate != 0) {
Pokitto 66:6281a40d73e6 92 o->bendrate = (int32_t)bendrate*(o->cinc/10000); // test value
Pokitto 66:6281a40d73e6 93 o->maxbend = (int32_t)maxbend*(o->cinc/100);
Pokitto 66:6281a40d73e6 94 //o->samplebendcount = o->maxbend>>24;
Pokitto 66:6281a40d73e6 95 //o->samplebendtick = 0;
Pokitto 66:6281a40d73e6 96 } else {
Pokitto 66:6281a40d73e6 97 o->bendrate = 0;
Pokitto 66:6281a40d73e6 98 o->maxbend = 0;
Pokitto 31:f4b9b85c7b62 99 }
Pokitto 31:f4b9b85c7b62 100 }
Pokitto 31:f4b9b85c7b62 101
Pokitto 31:f4b9b85c7b62 102 void setOSC(OSC* o,byte on, byte wave, uint16_t frq, uint8_t volume, uint32_t duration){
Pokitto 31:f4b9b85c7b62 103 o->on = on;
Pokitto 31:f4b9b85c7b62 104 o->overdrive = 0;
Pokitto 31:f4b9b85c7b62 105 o->kick = 0;
Pokitto 31:f4b9b85c7b62 106 o->wave = wave;
Pokitto 31:f4b9b85c7b62 107 o->loop = 0;//1;
Pokitto 31:f4b9b85c7b62 108 o->echo = 0;//1; //echo shifts left 8 steps to zero
Pokitto 31:f4b9b85c7b62 109 o->echodiv = 0;
Pokitto 31:f4b9b85c7b62 110 o->adsr = 0;//1;
Pokitto 31:f4b9b85c7b62 111 o->attack = 0;//200;
Pokitto 31:f4b9b85c7b62 112 o->decay = 0;//200;
Pokitto 31:f4b9b85c7b62 113 o->sustain = 0;//20;
Pokitto 31:f4b9b85c7b62 114 o->release = 0;//10;
Pokitto 31:f4b9b85c7b62 115 o->adsrphase = 0;//1;
Pokitto 31:f4b9b85c7b62 116 o->arpmode = 0;
Pokitto 31:f4b9b85c7b62 117 o->count = 0;
Pokitto 31:f4b9b85c7b62 118 noiseval = xorshift16(); //random(0,0xFFFF);
Pokitto 31:f4b9b85c7b62 119 o->cinc = ((float)0xFFFFFFFF/(float)POK_AUD_FREQ)*frq;
Pokitto 31:f4b9b85c7b62 120 if (wave == 2) o->cinc >>= 1; // correct pitch for saw wave
Pokitto 31:f4b9b85c7b62 121 if (wave == 4) o->cinc <<= 1; // enable higher pitch for pure noise
Pokitto 31:f4b9b85c7b62 122 o->vol = volume << 8;//volume;
Pokitto 31:f4b9b85c7b62 123 o->adsrvol = o->vol;
Pokitto 31:f4b9b85c7b62 124 o->duration = 0;//duration*100;
Pokitto 31:f4b9b85c7b62 125 o->maxbend = 0;//-4000;
Pokitto 31:f4b9b85c7b62 126 o->bendrate = 0;//1000;
Pokitto 31:f4b9b85c7b62 127 }
Pokitto 31:f4b9b85c7b62 128
Pokitto 31:f4b9b85c7b62 129
Pokitto 31:f4b9b85c7b62 130
Pokitto 31:f4b9b85c7b62 131 void emptyOscillators(){
Pokitto 31:f4b9b85c7b62 132 osc1.on = false; osc1.wave = 0; osc1.echo = 0; osc1.count = 0; osc1.cinc =0;
Pokitto 31:f4b9b85c7b62 133 osc1.attack = 0; osc1.loop = 0; osc1.adsrphase = 1; osc1.adsr = 1; osc1.decay = 100;
Pokitto 31:f4b9b85c7b62 134 osc1.pitchbend = 0; osc1.bendrate = 0; osc1.maxbend = 0; osc1.sustain = 0; osc1.release = 0;
Pokitto 31:f4b9b85c7b62 135
Pokitto 31:f4b9b85c7b62 136 osc2.on = false; osc2.wave = 0; osc2.echo = 0; osc2.count = 0; osc2.cinc =0;
Pokitto 31:f4b9b85c7b62 137 osc2.attack = 0; osc2.loop = 0; osc2.adsrphase = 1; osc2.adsr = 1; osc2.decay = 100;
Pokitto 31:f4b9b85c7b62 138 osc2.pitchbend = 0; osc2.bendrate = 0; osc2.maxbend = 0; osc2.sustain = 0; osc2.release = 0;
Pokitto 31:f4b9b85c7b62 139
Pokitto 31:f4b9b85c7b62 140 osc3.on = false; osc3.wave = 0; osc3.echo = 0; osc3.count = 0; osc3.cinc =0;
Pokitto 31:f4b9b85c7b62 141 osc3.attack = 0; osc3.loop = 0; osc3.adsrphase = 1; osc3.adsr = 1; osc3.decay = 100;
Pokitto 31:f4b9b85c7b62 142 osc3.pitchbend = 0; osc3.bendrate = 0; osc3.maxbend = 0; osc3.sustain = 0; osc3.release = 0;
Pokitto 31:f4b9b85c7b62 143 }
Pokitto 31:f4b9b85c7b62 144
Pokitto 31:f4b9b85c7b62 145
Pokitto 31:f4b9b85c7b62 146 void testOsc(){
Pokitto 31:f4b9b85c7b62 147 setOSC(&osc1,1,WTRI,1,0,1,25,127,10,10,20,2,0,0,0,0,0); // C3 = 25
Pokitto 31:f4b9b85c7b62 148 setOSC(&osc2,1,WTRI,1,0,1,29-12,63,2,1,20,2,0,0,14,0,0); // E3 = 29
Pokitto 31:f4b9b85c7b62 149 setOSC(&osc3,1,WSAW,1,0,1,25,15,30,30,20,2,-1,-1000,12,0,0); // G3 = 32
Pokitto 31:f4b9b85c7b62 150 }
Pokitto 31:f4b9b85c7b62 151
Pokitto 31:f4b9b85c7b62 152 void playNote(uint8_t oscnum, uint8_t notenum, uint8_t i) {
Pokitto 31:f4b9b85c7b62 153 OSC* o;
Pokitto 31:f4b9b85c7b62 154 if (oscnum == 1) o = &osc1; else if (oscnum == 2) o = &osc2; else o = &osc3;
Pokitto 31:f4b9b85c7b62 155 setOSC(o,1,patch[i].wave,patch[i].loop,patch[i].echo,patch[i].adsr,notenum,patch[i].vol,
Pokitto 31:f4b9b85c7b62 156 patch[i].attack,patch[i].decay,patch[i].sustain,patch[i].release,
Pokitto 31:f4b9b85c7b62 157 patch[i].maxbend,patch[i].bendrate,patch[i].arpmode,patch[i].overdrive,patch[i].kick);
Pokitto 31:f4b9b85c7b62 158 }
Pokitto 31:f4b9b85c7b62 159
Pokitto 31:f4b9b85c7b62 160 void makeSampleInstruments() {
Pokitto 31:f4b9b85c7b62 161 /* sample instruments for testing */
Pokitto 31:f4b9b85c7b62 162 patch[0].wave = WSQUARE;
Pokitto 31:f4b9b85c7b62 163 patch[0].on = 1;
Pokitto 31:f4b9b85c7b62 164 patch[0].vol = 127;
Pokitto 31:f4b9b85c7b62 165 patch[0].loop = 0;
Pokitto 31:f4b9b85c7b62 166 patch[0].echo = 0;
Pokitto 31:f4b9b85c7b62 167
Pokitto 31:f4b9b85c7b62 168 patch[0].adsr = 0;
Pokitto 31:f4b9b85c7b62 169 patch[0].attack = 0;
Pokitto 31:f4b9b85c7b62 170 patch[0].decay = 0;
Pokitto 31:f4b9b85c7b62 171 patch[0].sustain = 0;
Pokitto 31:f4b9b85c7b62 172 patch[0].release = 0;
Pokitto 31:f4b9b85c7b62 173
Pokitto 31:f4b9b85c7b62 174 patch[0].maxbend = -1000;
Pokitto 31:f4b9b85c7b62 175 patch[0].bendrate = 100;
Pokitto 31:f4b9b85c7b62 176 patch[0].arpmode = 3;
Pokitto 31:f4b9b85c7b62 177 patch[0].overdrive = 0;
Pokitto 31:f4b9b85c7b62 178 patch[0].kick = 0;
Pokitto 31:f4b9b85c7b62 179
Pokitto 31:f4b9b85c7b62 180 patch[1].wave = WSAW;
Pokitto 31:f4b9b85c7b62 181 patch[1].on = 1;
Pokitto 31:f4b9b85c7b62 182 patch[1].vol = 200;
Pokitto 31:f4b9b85c7b62 183 patch[1].loop = 0;
Pokitto 31:f4b9b85c7b62 184 patch[1].echo = 0;
Pokitto 31:f4b9b85c7b62 185
Pokitto 31:f4b9b85c7b62 186 patch[1].adsr = 0;
Pokitto 31:f4b9b85c7b62 187 patch[1].attack = 0;
Pokitto 31:f4b9b85c7b62 188 patch[1].decay = 0;
Pokitto 31:f4b9b85c7b62 189 patch[1].sustain = 0;
Pokitto 31:f4b9b85c7b62 190 patch[1].release = 0;
Pokitto 31:f4b9b85c7b62 191
Pokitto 31:f4b9b85c7b62 192 patch[1].maxbend = 0;
Pokitto 31:f4b9b85c7b62 193 patch[1].bendrate = 0;
Pokitto 31:f4b9b85c7b62 194 patch[1].arpmode = 1;
Pokitto 31:f4b9b85c7b62 195 patch[1].overdrive = 0;
Pokitto 31:f4b9b85c7b62 196 patch[1].kick = 0;
Pokitto 31:f4b9b85c7b62 197
Pokitto 31:f4b9b85c7b62 198 patch[2].wave = WTRI;
Pokitto 31:f4b9b85c7b62 199 patch[2].on = 1;
Pokitto 31:f4b9b85c7b62 200 patch[2].vol = 127;
Pokitto 31:f4b9b85c7b62 201 patch[2].loop = 0;
Pokitto 31:f4b9b85c7b62 202 patch[2].echo = 0;
Pokitto 31:f4b9b85c7b62 203
Pokitto 31:f4b9b85c7b62 204 patch[2].adsr = 1;
Pokitto 31:f4b9b85c7b62 205 patch[2].attack = 10;
Pokitto 31:f4b9b85c7b62 206 patch[2].decay = 0;
Pokitto 31:f4b9b85c7b62 207 patch[2].sustain = 0;
Pokitto 31:f4b9b85c7b62 208 patch[2].release = 0;
Pokitto 31:f4b9b85c7b62 209
Pokitto 31:f4b9b85c7b62 210 patch[2].maxbend = 0;
Pokitto 31:f4b9b85c7b62 211 patch[2].bendrate = 0;
Pokitto 31:f4b9b85c7b62 212 patch[2].arpmode = 1;
Pokitto 31:f4b9b85c7b62 213 patch[2].overdrive = 0;
Pokitto 31:f4b9b85c7b62 214 patch[2].kick = 0;
Pokitto 31:f4b9b85c7b62 215
Pokitto 31:f4b9b85c7b62 216 patch[3].wave = WNOISE;
Pokitto 31:f4b9b85c7b62 217 patch[3].on = 1;
Pokitto 31:f4b9b85c7b62 218 patch[3].vol = 127;
Pokitto 31:f4b9b85c7b62 219 patch[3].loop = 1;
Pokitto 31:f4b9b85c7b62 220 patch[3].echo = 1;
Pokitto 31:f4b9b85c7b62 221
Pokitto 31:f4b9b85c7b62 222 patch[3].adsr = 1;
Pokitto 31:f4b9b85c7b62 223 patch[3].attack = 0;
Pokitto 31:f4b9b85c7b62 224 patch[3].decay = 30;
Pokitto 31:f4b9b85c7b62 225 patch[3].sustain = 30;
Pokitto 31:f4b9b85c7b62 226 patch[3].release = 5;
Pokitto 31:f4b9b85c7b62 227
Pokitto 31:f4b9b85c7b62 228 patch[3].maxbend = 0;
Pokitto 31:f4b9b85c7b62 229 patch[3].bendrate = 0;
Pokitto 31:f4b9b85c7b62 230 patch[3].arpmode = 0;
Pokitto 31:f4b9b85c7b62 231 patch[3].overdrive = 0;
Pokitto 31:f4b9b85c7b62 232 patch[3].kick = 0;
Pokitto 31:f4b9b85c7b62 233
Pokitto 31:f4b9b85c7b62 234 patch[4].wave = WPNOISE;
Pokitto 31:f4b9b85c7b62 235 patch[4].on = 1;
Pokitto 31:f4b9b85c7b62 236 patch[4].vol = 127;
Pokitto 31:f4b9b85c7b62 237 patch[4].loop = 0;
Pokitto 31:f4b9b85c7b62 238 patch[4].echo = 0;
Pokitto 31:f4b9b85c7b62 239
Pokitto 31:f4b9b85c7b62 240 patch[4].adsr = 1;
Pokitto 31:f4b9b85c7b62 241 patch[4].attack = 0;
Pokitto 31:f4b9b85c7b62 242 patch[4].decay = 30;
Pokitto 31:f4b9b85c7b62 243 patch[4].sustain = 30;
Pokitto 31:f4b9b85c7b62 244 patch[4].release = 5;
Pokitto 31:f4b9b85c7b62 245
Pokitto 31:f4b9b85c7b62 246 patch[4].maxbend = 0;
Pokitto 31:f4b9b85c7b62 247 patch[4].bendrate = 0;
Pokitto 31:f4b9b85c7b62 248 patch[4].arpmode = 1;
Pokitto 31:f4b9b85c7b62 249 patch[4].overdrive = 0;
Pokitto 31:f4b9b85c7b62 250 patch[4].kick = 0;
Pokitto 31:f4b9b85c7b62 251 }
Pokitto 31:f4b9b85c7b62 252
Pokitto 31:f4b9b85c7b62 253