addsynth.cpp

   1 /* -*- Mode: C++ ; c-basic-offset: 2 -*- */
   2 /*****************************************************************************
   3  *
   4  *   Copyright (C) 2006,2007,2008,2009 Nedko Arnaudov <nedko@arnaudov.name>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; version 2 of the License
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program; if not, write to the Free Software
  17  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *****************************************************************************/
  20
  21 #include <stdlib.h>
  22 #include <math.h>
  23 #include <assert.h>
  24
  25 #include "common.h"
  26 #include "addsynth.h"
  27 #include "globals.h"
  28 #include "resonance.h"
  29 #include "fft.h"
  30 #include "oscillator.h"
  31 #include "envelope_parameters.h"
  32 #include "envelope.h"
  33 #include "lfo_parameters.h"
  34 #include "lfo.h"
  35 #include "filter_parameters.h"
  36 #include "filter_base.h"
  37 #include "analog_filter.h"
  38 #include "sv_filter.h"
  39 #include "formant_filter.h"
  40 #include "filter.h"
  41 #include "portamento.h"
  42 #include "addsynth_internal.h"
  43 #include "addnote.h"
  44 #include "util.h"
  45
  46 #define LOG_LEVEL LOG_LEVEL_ERROR
  47 #include "log.h"
  48
  49 #define ZYN_DEFAULT_POLYPHONY 60
  50
  51 // (94.0 / 64.0 - 1) * 5.0 = 2.34375
  52 #define ZYN_GLOBAL_FILTER_INITIAL_FREQUENCY 2.34375
  53
  54 // 40.0 / 127.0 = 0.31496062992125984
  55 #define ZYN_GLOBAL_FILTER_INITIAL_Q 0.31496062992125984
  56
  57 struct note_channel
  58 {
  59   int midinote;               // MIDI note, -1 when note "channel" is not playing
  60   zyn_addnote_handle note_handle;
  61 };
  62
  63 bool
  64 zyn_addsynth_create(
  65   float sample_rate,
  66   unsigned int voices_count,
  67   zyn_addsynth_handle * handle_ptr)
  68 {
  69   struct zyn_addsynth * zyn_addsynth_ptr;
  70   unsigned int note_index;
  71   unsigned int voice_index;
  72
  73 //  printf("zyn_addsynth_create\n");
  74   zyn_addsynth_ptr = (struct zyn_addsynth *)malloc(sizeof(struct zyn_addsynth));
  75   if (zyn_addsynth_ptr == NULL)
  76   {
  77     goto fail;
  78   }
  79
  80   zyn_addsynth_ptr->sample_rate = sample_rate;
  81
  82   zyn_addsynth_ptr->temporary_samples_ptr = (zyn_sample_type *)malloc(sizeof(zyn_sample_type) * OSCIL_SIZE);
  83   zyn_fft_freqs_init(&zyn_addsynth_ptr->oscillator_fft_frequencies, OSCIL_SIZE / 2);
  84
  85   zyn_addsynth_ptr->polyphony = ZYN_DEFAULT_POLYPHONY;
  86   zyn_addsynth_ptr->notes_array = (struct note_channel *)malloc(ZYN_DEFAULT_POLYPHONY * sizeof(struct note_channel));
  87
  88   zyn_addsynth_ptr->all_sound_off = false;
  89
  90   zyn_addsynth_ptr->velsns = 64;
  91   zyn_addsynth_ptr->fft = zyn_fft_create(OSCIL_SIZE);
  92
  93   // ADnoteParameters temp begin
  94
  95   zyn_addsynth_ptr->m_frequency_envelope_params.init_asr(0, false, 64, 50, 64, 60);
  96
  97   zyn_addsynth_ptr->m_amplitude_envelope_params.init_adsr(64, true, 0, 40, 127, 25, false);
  98
  99   zyn_addsynth_ptr->filter_type = ZYN_FILTER_TYPE_ANALOG;
 100   zyn_addsynth_ptr->m_filter_params.init(sample_rate, ZYN_FILTER_ANALOG_TYPE_LPF2, 94, 40);
 101   if (!zyn_filter_sv_create(sample_rate, ZYN_GLOBAL_FILTER_INITIAL_FREQUENCY, ZYN_GLOBAL_FILTER_INITIAL_Q, &zyn_addsynth_ptr->filter_sv))
 102   {
 103     goto fail_free_synth;
 104   }
 105
 106   zyn_addsynth_ptr->m_filter_envelope_params.init_adsr_filter(0, true, 64, 40, 64, 70, 60, 64);
 107
 108   zyn_resonance_init(&zyn_addsynth_ptr->GlobalPar.resonance);
 109
 110   zyn_addsynth_ptr->voices_count = voices_count;
 111   zyn_addsynth_ptr->voices_params_ptr = (struct zyn_addnote_voice_parameters *)malloc(sizeof(struct zyn_addnote_voice_parameters) * voices_count);
 112
 113   for (voice_index = 0 ; voice_index < voices_count ; voice_index++)
 114   {
 115     zyn_oscillator_init(
 116       &zyn_addsynth_ptr->voices_params_ptr[voice_index].oscillator,
 117       sample_rate,
 118       zyn_addsynth_ptr->fft,
 119       &zyn_addsynth_ptr->GlobalPar.resonance,
 120       zyn_addsynth_ptr->temporary_samples_ptr,
 121       &zyn_addsynth_ptr->oscillator_fft_frequencies);
 122
 123     zyn_oscillator_init(
 124       &zyn_addsynth_ptr->voices_params_ptr[voice_index].modulator_oscillator,
 125       sample_rate,
 126       zyn_addsynth_ptr->fft,
 127       NULL,
 128       zyn_addsynth_ptr->temporary_samples_ptr,
 129       &zyn_addsynth_ptr->oscillator_fft_frequencies);
 130
 131     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_amplitude_envelope_params.init_adsr(64, true, 0, 100, 127, 100, false);
 132
 133     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.frequency = 90.0 / 127.0;
 134     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.depth = 32.0 / 127.0;
 135     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.random_start_phase = false;
 136     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.start_phase = 0.5;
 137     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.depth_randomness_enabled = false;
 138     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.depth = 0;
 139     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.frequency_randomness_enabled = false;
 140     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.frequency_randomness = 0;
 141     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.delay = 30.0 / 127.0 * 4.0;
 142     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.stretch = 0;
 143     zyn_addsynth_ptr->voices_params_ptr[voice_index].amplitude_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 144
 145     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_frequency_envelope_params.init_asr(0, false, 30, 40, 64, 60);
 146
 147     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.frequency = 50.0 / 127.0;
 148     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.depth = 40.0 / 127.0;
 149     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.random_start_phase = false;
 150     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.start_phase = 0;
 151     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.depth_randomness_enabled = false;
 152     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.depth = 0;
 153     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.frequency_randomness_enabled = false;
 154     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.frequency_randomness = 0;
 155     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.delay = 0;
 156     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.stretch = 0;
 157     zyn_addsynth_ptr->voices_params_ptr[voice_index].frequency_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 158
 159     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_filter_params.init(sample_rate, ZYN_FILTER_ANALOG_TYPE_LPF2, 50, 60);
 160     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_filter_envelope_params.init_adsr_filter(0, false, 90, 70, 40, 70, 10, 40);
 161
 162     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.frequency = 50.0 / 127.0;
 163     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.depth = 20.0 / 127.0;
 164     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.random_start_phase = false;
 165     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.start_phase = 0.5;
 166     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.depth_randomness_enabled = false;
 167     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.depth = 0;
 168     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.frequency_randomness_enabled = false;
 169     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.frequency_randomness = 0;
 170     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.delay = 0;
 171     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.stretch = 0;
 172     zyn_addsynth_ptr->voices_params_ptr[voice_index].filter_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 173
 174     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_fm_frequency_envelope_params.init_asr(0, false, 20, 90, 40, 80);
 175     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_fm_amplitude_envelope_params.init_adsr(64, true, 80, 90, 127, 100, false);
 176   }
 177
 178   /* Frequency Global Parameters */
 179 //  zyn_addsynth_ptr->GlobalPar.stereo = true;      // Stereo
 180   zyn_addsynth_ptr->GlobalPar.PDetune=8192;//zero
 181   zyn_addsynth_ptr->GlobalPar.PCoarseDetune=0;
 182   zyn_addsynth_ptr->GlobalPar.PDetuneType=1;
 183   zyn_addsynth_ptr->GlobalPar.PBandwidth=64;
 184
 185   /* Amplitude Global Parameters */
 186   zyn_addsynth_ptr->GlobalPar.PVolume=90;
 187   zyn_addsynth_ptr->GlobalPar.PAmpVelocityScaleFunction=64;
 188   zyn_addsynth_ptr->GlobalPar.PPunchStrength=0;
 189   zyn_addsynth_ptr->GlobalPar.PPunchTime=60;
 190   zyn_addsynth_ptr->GlobalPar.PPunchStretch=64;
 191   zyn_addsynth_ptr->GlobalPar.PPunchVelocitySensing=72;
 192
 193   /* Filter Global Parameters*/
 194   zyn_addsynth_ptr->m_filter_velocity_sensing_amount = 0.5;
 195   zyn_addsynth_ptr->m_filter_velocity_scale_function = 0;
 196   zyn_addsynth_ptr->m_filter_params.defaults();
 197
 198   for (voice_index = 0 ; voice_index < voices_count ; voice_index++)
 199   {
 200     zyn_addsynth_ptr->voices_params_ptr[voice_index].enabled = false;
 201     zyn_addsynth_ptr->voices_params_ptr[voice_index].white_noise = false;
 202     zyn_addsynth_ptr->voices_params_ptr[voice_index].Pfixedfreq=0;
 203     zyn_addsynth_ptr->voices_params_ptr[voice_index].PfixedfreqET=0;
 204     zyn_addsynth_ptr->voices_params_ptr[voice_index].resonance = true;
 205     zyn_addsynth_ptr->voices_params_ptr[voice_index].Pfilterbypass=0;
 206     zyn_addsynth_ptr->voices_params_ptr[voice_index].Pextoscil=-1;
 207     zyn_addsynth_ptr->voices_params_ptr[voice_index].PextFMoscil=-1;
 208     zyn_addsynth_ptr->voices_params_ptr[voice_index].Poscilphase=64;
 209     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMoscilphase=64;
 210     zyn_addsynth_ptr->voices_params_ptr[voice_index].PDelay=0;
 211     zyn_addsynth_ptr->voices_params_ptr[voice_index].PVolume=100;
 212     zyn_addsynth_ptr->voices_params_ptr[voice_index].PVolumeminus=0;
 213     zyn_addsynth_ptr->voices_params_ptr[voice_index].PPanning=64;//center
 214     zyn_addsynth_ptr->voices_params_ptr[voice_index].PDetune=8192;//8192=0
 215     zyn_addsynth_ptr->voices_params_ptr[voice_index].PCoarseDetune=0;
 216     zyn_addsynth_ptr->voices_params_ptr[voice_index].PDetuneType=0;
 217     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFreqLfoEnabled=0;
 218     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFreqEnvelopeEnabled=0;
 219     zyn_addsynth_ptr->voices_params_ptr[voice_index].PAmpEnvelopeEnabled=0;
 220     zyn_addsynth_ptr->voices_params_ptr[voice_index].PAmpLfoEnabled=0;
 221     zyn_addsynth_ptr->voices_params_ptr[voice_index].PAmpVelocityScaleFunction=127;
 222     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFilterEnabled=0;
 223     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFilterEnvelopeEnabled=0;
 224     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFilterLfoEnabled=0;
 225     zyn_addsynth_ptr->voices_params_ptr[voice_index].fm_type = ZYN_FM_TYPE_NONE;
 226
 227     //I use the internal oscillator (-1)
 228     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMVoice=-1;
 229
 230     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMVolume=90;
 231     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMVolumeDamp=64;
 232     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMDetune=8192;
 233     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMCoarseDetune=0;
 234     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMDetuneType=0;
 235     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMFreqEnvelopeEnabled=0;
 236     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMAmpEnvelopeEnabled=0;
 237     zyn_addsynth_ptr->voices_params_ptr[voice_index].PFMVelocityScaleFunction=64;
 238
 239     zyn_addsynth_ptr->voices_params_ptr[voice_index].m_filter_params.defaults();
 240   }
 241
 242   zyn_addsynth_ptr->voices_params_ptr[0].enabled = true;
 243
 244   // ADnoteParameters temp end
 245
 246   zyn_addsynth_ptr->bandwidth_depth = 64;
 247   zyn_addsynth_ptr->bandwidth_exponential = false;
 248   zyn_addsynth_ptr->modwheel_depth = 80;
 249   zyn_addsynth_ptr->modwheel_exponential = false;
 250
 251   zyn_addsynth_set_bandwidth(zyn_addsynth_ptr, 64);
 252   zyn_addsynth_set_modwheel(zyn_addsynth_ptr, 64);
 253
 254   zyn_portamento_init(&zyn_addsynth_ptr->portamento);
 255
 256   zyn_addsynth_ptr->pitch_bend_range = 200.0; // 200 cents = 2 halftones
 257   zyn_addsynth_ptr->pitch_bend = 0; // center
 258   ZYN_UPDATE_PITCH_BEND(zyn_addsynth_ptr);
 259
 260   zyn_addsynth_ptr->oldfreq = -1.0;
 261
 262   zyn_addsynth_ptr->random_panorama = false;
 263   zyn_addsynth_ptr->panorama = 0.0;
 264
 265   zyn_addsynth_ptr->stereo = true;
 266
 267   zyn_addsynth_ptr->random_grouping = false;
 268
 269   zyn_addsynth_ptr->amplitude_lfo_params.frequency = 80.0 / 127.0;
 270   zyn_addsynth_ptr->amplitude_lfo_params.depth = 0;
 271   zyn_addsynth_ptr->amplitude_lfo_params.random_start_phase = false;
 272   zyn_addsynth_ptr->amplitude_lfo_params.start_phase = 0.5;
 273   zyn_addsynth_ptr->amplitude_lfo_params.depth_randomness_enabled = false;
 274   zyn_addsynth_ptr->amplitude_lfo_params.depth_randomness = 0.5;
 275   zyn_addsynth_ptr->amplitude_lfo_params.frequency_randomness_enabled = false;
 276   zyn_addsynth_ptr->amplitude_lfo_params.frequency_randomness = 0.5;
 277   zyn_addsynth_ptr->amplitude_lfo_params.delay = 0;
 278   zyn_addsynth_ptr->amplitude_lfo_params.stretch = 0;
 279   zyn_addsynth_ptr->amplitude_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 280
 281   zyn_addsynth_ptr->filter_lfo_params.frequency = 80.0 / 127.0;
 282   zyn_addsynth_ptr->filter_lfo_params.depth = 0;
 283   zyn_addsynth_ptr->filter_lfo_params.random_start_phase = false;
 284   zyn_addsynth_ptr->filter_lfo_params.start_phase = 0.5;
 285   zyn_addsynth_ptr->filter_lfo_params.depth_randomness_enabled = false;
 286   zyn_addsynth_ptr->filter_lfo_params.depth_randomness = 0.5;
 287   zyn_addsynth_ptr->filter_lfo_params.frequency_randomness_enabled = false;
 288   zyn_addsynth_ptr->filter_lfo_params.frequency_randomness = 0.5;
 289   zyn_addsynth_ptr->filter_lfo_params.delay = 0;
 290   zyn_addsynth_ptr->filter_lfo_params.stretch = 0;
 291   zyn_addsynth_ptr->filter_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 292
 293   zyn_addsynth_ptr->frequency_lfo_params.frequency = 70.0 / 127.0;
 294   zyn_addsynth_ptr->frequency_lfo_params.depth = 0;
 295   zyn_addsynth_ptr->frequency_lfo_params.random_start_phase = false;
 296   zyn_addsynth_ptr->frequency_lfo_params.start_phase = 0.5;
 297   zyn_addsynth_ptr->frequency_lfo_params.depth_randomness_enabled = false;
 298   zyn_addsynth_ptr->frequency_lfo_params.depth_randomness = 0.5;
 299   zyn_addsynth_ptr->frequency_lfo_params.frequency_randomness_enabled = false;
 300   zyn_addsynth_ptr->frequency_lfo_params.frequency_randomness = 0.5;
 301   zyn_addsynth_ptr->frequency_lfo_params.delay = 0;
 302   zyn_addsynth_ptr->frequency_lfo_params.stretch = 0;
 303   zyn_addsynth_ptr->frequency_lfo_params.shape = ZYN_LFO_SHAPE_TYPE_SINE;
 304
 305   for (note_index = 0 ; note_index < ZYN_DEFAULT_POLYPHONY ; note_index++)
 306   {
 307     if (!zyn_addnote_create(
 308           zyn_addsynth_ptr,
 309           &zyn_addsynth_ptr->notes_array[note_index].note_handle))
 310     {
 311     }
 312
 313     zyn_addsynth_ptr->notes_array[note_index].midinote = -1;
 314   }
 315
 316   // init global components
 317
 318   zyn_addsynth_component_init_amp_globals(
 319     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_AMP_GLOBALS,
 320     zyn_addsynth_ptr);
 321
 322   zyn_addsynth_component_init_amp_envelope(
 323     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_AMP_ENV,
 324     &zyn_addsynth_ptr->m_amplitude_envelope_params);
 325
 326   zyn_addsynth_component_init_lfo(
 327     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_AMP_LFO,
 328     &zyn_addsynth_ptr->amplitude_lfo_params);
 329
 330   zyn_addsynth_component_init_filter_globals(
 331     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_GLOBALS,
 332     zyn_addsynth_ptr);
 333
 334   zyn_addsynth_component_init_filter_analog(
 335     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_ANALOG,
 336     zyn_addsynth_ptr);
 337
 338   zyn_addsynth_component_init_filter_formant(
 339     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_FORMANT,
 340     zyn_addsynth_ptr);
 341
 342   zyn_addsynth_component_init_filter_sv(
 343     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_SV,
 344     zyn_addsynth_ptr->filter_sv);
 345
 346   zyn_addsynth_component_init_filter_envelope(
 347     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_ENV,
 348     &zyn_addsynth_ptr->m_filter_envelope_params);
 349
 350   zyn_addsynth_component_init_lfo(
 351     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FILTER_LFO,
 352     &zyn_addsynth_ptr->filter_lfo_params);
 353
 354   zyn_addsynth_component_init_frequency_globals(
 355     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FREQUENCY_GLOBALS);
 356
 357   zyn_addsynth_component_init_frequency_envelope(
 358     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FREQUENCY_ENV,
 359     &zyn_addsynth_ptr->m_frequency_envelope_params);
 360
 361   zyn_addsynth_component_init_lfo(
 362     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_FREQUENCY_LFO,
 363     &zyn_addsynth_ptr->frequency_lfo_params);
 364
 365   zyn_addsynth_component_init_portamento(
 366     zyn_addsynth_ptr->global_components + ZYNADD_COMPONENT_PORTAMENTO,
 367     &zyn_addsynth_ptr->portamento);
 368
 369   // init voices components
 370
 371   zyn_addsynth_ptr->voices_components =
 372     (struct zyn_component_descriptor *)malloc(
 373       sizeof(struct zyn_component_descriptor) * voices_count * ZYNADD_VOICE_COMPONENTS_COUNT);
 374
 375   for (voice_index = 0 ; voice_index < voices_count ; voice_index++)
 376   {
 377     zyn_addsynth_component_init_voice_globals(
 378       zyn_addsynth_ptr->voices_components + voice_index * ZYNADD_VOICE_COMPONENTS_COUNT + ZYNADD_COMPONENT_VOICE_GLOBALS,
 379       zyn_addsynth_ptr->voices_params_ptr + voice_index);
 380
 381     zyn_addsynth_component_init_oscillator(
 382       zyn_addsynth_ptr->voices_components + voice_index * ZYNADD_VOICE_COMPONENTS_COUNT + ZYNADD_COMPONENT_VOICE_OSCILLATOR,
 383       &zyn_addsynth_ptr->voices_params_ptr[voice_index].oscillator);
 384   }
 385
 386   *handle_ptr = (zyn_addsynth_handle)zyn_addsynth_ptr;
 387
 388 //  printf("zyn_addsynth_create(%08X)\n", (unsigned int)*handle_ptr);
 389
 390   return true;
 391
 392 fail_free_synth:
 393
 394 fail:
 395   return false;
 396 }
 397
 398 #define zyn_addsynth_ptr ((struct zyn_addsynth *)handle)
 399
 400 void
 401 zyn_addsynth_get_audio_output(
 402   zyn_addsynth_handle handle,
 403   zyn_sample_type * buffer_left,
 404   zyn_sample_type * buffer_right)
 405 {
 406   unsigned int note_index;
 407   zyn_sample_type note_buffer_left[SOUND_BUFFER_SIZE];
 408   zyn_sample_type note_buffer_right[SOUND_BUFFER_SIZE];
 409   bool note_active;
 410
 411   silence_two_buffers(buffer_left, buffer_right, SOUND_BUFFER_SIZE);
 412
 413   for (note_index = 0 ; note_index < zyn_addsynth_ptr->polyphony ; note_index++)
 414   {
 415     if (zyn_addsynth_ptr->notes_array[note_index].midinote != -1)
 416     {
 417       //printf("mixing note channel %u\n", note_index);
 418
 419       note_active = zyn_addnote_noteout(
 420         zyn_addsynth_ptr->notes_array[note_index].note_handle,
 421         note_buffer_left,
 422         note_buffer_right);
 423
 424       mix_add_two_buffers(
 425         buffer_left,
 426         buffer_right,
 427         note_buffer_left,
 428         note_buffer_right,
 429         SOUND_BUFFER_SIZE);
 430
 431       if (!note_active)
 432       {
 433         zyn_addsynth_ptr->notes_array[note_index].midinote = -1;
 434       }
 435     }
 436   }
 437
 438   if (zyn_addsynth_ptr->all_sound_off)
 439   {
 440     fadeout_two_buffers(buffer_left, buffer_right, SOUND_BUFFER_SIZE);
 441
 442     for (note_index = 0 ; note_index < zyn_addsynth_ptr->polyphony ; note_index++)
 443     {
 444       if (zyn_addsynth_ptr->notes_array[note_index].midinote != -1)
 445       {
 446         zyn_addnote_force_disable(zyn_addsynth_ptr->notes_array[note_index].note_handle);
 447         zyn_addsynth_ptr->notes_array[note_index].midinote = -1;
 448       }
 449     }
 450
 451     zyn_addsynth_ptr->all_sound_off = false;
 452   }
 453
 454   zyn_portamento_update(&zyn_addsynth_ptr->portamento);
 455 }
 456
 457 void
 458 zyn_addsynth_note_on(
 459   zyn_addsynth_handle handle,
 460   unsigned int note,
 461   unsigned int velocity)
 462 {
 463   unsigned int note_index;
 464   int masterkeyshift;
 465   float vel;
 466   zyn_sample_type notebasefreq;
 467
 468   for (note_index = 0 ; note_index < zyn_addsynth_ptr->polyphony ; note_index++)
 469   {
 470     if (zyn_addsynth_ptr->notes_array[note_index].midinote == -1)
 471     {
 472       goto unused_note_channel_found;
 473     }
 474   }
 475
 476   //printf("note on %u - ignored\n", note);
 477
 478   return;
 479
 480 unused_note_channel_found:
 481   //printf("note on %u - channel %u\n", note, note_index);
 482   masterkeyshift = 0;
 483
 484   vel = VelF(velocity/127.0, zyn_addsynth_ptr->velsns);
 485   notebasefreq = 440.0*pow(2.0,(note-69.0)/12.0);
 486
 487   // Portamento
 488
 489   if (zyn_addsynth_ptr->oldfreq < 1.0) /* only when the first note is played */
 490   {
 491     zyn_addsynth_ptr->oldfreq = notebasefreq;
 492   }
 493
 494   bool portamento = zyn_portamento_start(zyn_addsynth_ptr->sample_rate, &zyn_addsynth_ptr->portamento, zyn_addsynth_ptr->oldfreq, notebasefreq);
 495
 496   zyn_addsynth_ptr->oldfreq = notebasefreq;
 497
 498   zyn_addsynth_ptr->notes_array[note_index].midinote = note;
 499
 500   zyn_addnote_note_on(
 501     zyn_addsynth_ptr->notes_array[note_index].note_handle,
 502     zyn_addsynth_ptr->random_panorama ? RND : zyn_addsynth_ptr->panorama,
 503     zyn_addsynth_ptr->random_grouping,
 504     notebasefreq,
 505     vel,
 506     portamento,
 507     note);
 508 }
 509
 510 void
 511 zyn_addsynth_note_off(
 512   zyn_addsynth_handle handle,
 513   unsigned int note)
 514 {
 515   unsigned int note_index;
 516
 517   //printf("note off %u\n", note);
 518
 519   for (note_index = 0 ; note_index < zyn_addsynth_ptr->polyphony ; note_index++)
 520   {
 521     if (zyn_addsynth_ptr->notes_array[note_index].midinote == (char)note)
 522     {
 523       zyn_addnote_note_off(zyn_addsynth_ptr->notes_array[note_index].note_handle);
 524     }
 525   }
 526 }
 527
 528 void
 529 zyn_addsynth_all_notes_off(
 530   zyn_addsynth_handle handle)
 531 {
 532   unsigned int note_index;
 533
 534   for (note_index = 0 ; note_index < zyn_addsynth_ptr->polyphony ; note_index++)
 535   {
 536     if (zyn_addsynth_ptr->notes_array[note_index].midinote != -1)
 537     {
 538       zyn_addnote_note_off(zyn_addsynth_ptr->notes_array[note_index].note_handle);
 539     }
 540   }
 541 }
 542
 543 void
 544 zyn_addsynth_all_sound_off(
 545   zyn_addsynth_handle handle)
 546 {
 547   zyn_addsynth_ptr->all_sound_off = true;
 548 }
 549
 550 void
 551 zyn_addsynth_destroy(
 552   zyn_addsynth_handle handle)
 553 {
 554   unsigned int voice_index;
 555
 556   free(zyn_addsynth_ptr->voices_components);
 557
 558 //  printf("zyn_addsynth_destroy(%08X)\n", (unsigned int)handle);
 559   zyn_fft_destroy(zyn_addsynth_ptr->fft);
 560
 561   // ADnoteParameters temp begin
 562
 563   for (voice_index = 0 ; voice_index < zyn_addsynth_ptr->voices_count ; voice_index++)
 564   {
 565     zyn_oscillator_uninit(&zyn_addsynth_ptr->voices_params_ptr[voice_index].oscillator);
 566     zyn_oscillator_uninit(&zyn_addsynth_ptr->voices_params_ptr[voice_index].modulator_oscillator);
 567   }
 568
 569   zyn_filter_sv_destroy(zyn_addsynth_ptr->filter_sv);
 570
 571   // ADnoteParameters temp end
 572
 573   free(zyn_addsynth_ptr->voices_params_ptr);
 574
 575   free(zyn_addsynth_ptr->notes_array);
 576
 577   free(zyn_addsynth_ptr->temporary_samples_ptr);
 578
 579   delete zyn_addsynth_ptr;
 580 }
 581
 582 zyn_addsynth_component
 583 zyn_addsynth_get_global_component(
 584   zyn_addsynth_handle handle,
 585   unsigned int component)
 586 {
 587   if (component >= ZYNADD_GLOBAL_COMPONENTS_COUNT)
 588   {
 589     assert(0);
 590     return NULL;
 591   }
 592
 593   return zyn_addsynth_ptr->global_components + component;
 594 }
 595
 596 zyn_addsynth_component
 597 zyn_addsynth_get_voice_component(
 598   zyn_addsynth_handle handle,
 599   unsigned int voice,
 600   unsigned int component)
 601 {
 602   if (voice >= zyn_addsynth_ptr->voices_count)
 603   {
 604     assert(0);
 605     return NULL;
 606   }
 607
 608   if (component >= ZYNADD_VOICE_COMPONENTS_COUNT)
 609   {
 610     assert(0);
 611     return NULL;
 612   }
 613
 614   return zyn_addsynth_ptr->voices_components + voice * ZYNADD_VOICE_COMPONENTS_COUNT + component;
 615 }
 616
 617 float percent_from_0_127(unsigned char value)
 618 {
 619   return ((float)(value)/127.0)*100.0; // 0-127 -> percent
 620 }
 621
 622 unsigned char percent_to_0_127(float value)
 623 {
 624   return (unsigned char)roundf(value / 100.0 * 127.0);
 625 }
 626
 627 #define component_ptr ((struct zyn_component_descriptor *)component)
 628
 629 float
 630 zyn_addsynth_get_float_parameter(
 631   zyn_addsynth_component component,
 632   unsigned int parameter)
 633 {
 634   return component_ptr->get_float(component_ptr->context, parameter);
 635 }
 636
 637 void
 638 zyn_addsynth_set_float_parameter(
 639   zyn_addsynth_component component,
 640   unsigned int parameter,
 641   float value)
 642 {
 643   return component_ptr->set_float(component_ptr->context, parameter, value);
 644 }
 645
 646 bool
 647 zyn_addsynth_get_bool_parameter(
 648   zyn_addsynth_component component,
 649   unsigned int parameter)
 650 {
 651   //LOG_DEBUG("component %p, context %p", component_ptr, component_ptr->context);
 652   return component_ptr->get_bool(component_ptr->context, parameter);
 653 }
 654
 655 void
 656 zyn_addsynth_set_bool_parameter(
 657   zyn_addsynth_component component,
 658   unsigned int parameter,
 659   bool value)
 660 {
 661   return component_ptr->set_bool(component_ptr->context, parameter, value);
 662 }
 663
 664 signed int
 665 zyn_addsynth_get_int_parameter(
 666   zyn_addsynth_component component,
 667   unsigned int parameter)
 668 {
 669   return component_ptr->get_int(component_ptr->context, parameter);
 670 }
 671
 672 void
 673 zyn_addsynth_set_int_parameter(
 674   zyn_addsynth_component component,
 675   unsigned int parameter,
 676   signed int value)
 677 {
 678   return component_ptr->set_int(component_ptr->context, parameter, value);
 679 }
 680
 681 #undef zyn_addsynth_ptr
 682
 683 void
 684 zyn_addsynth_set_bandwidth(struct zyn_addsynth * zyn_addsynth_ptr, int value)
 685 {
 686   float tmp;
 687
 688   if (!zyn_addsynth_ptr->bandwidth_exponential)
 689   {
 690     if (value < 64 && zyn_addsynth_ptr->bandwidth_depth >= 64)
 691     {
 692       tmp = 1.0;
 693     }
 694     else
 695     {
 696       tmp = pow(25.0, pow(zyn_addsynth_ptr->bandwidth_depth / 127.0, 1.5)) - 1.0;
 697     }
 698
 699     zyn_addsynth_ptr->bandwidth_relbw = (value / 64.0 - 1.0) * tmp + 1.0;
 700     if (zyn_addsynth_ptr->bandwidth_relbw < 0.01)
 701     {
 702       zyn_addsynth_ptr->bandwidth_relbw = 0.01;
 703     }
 704   }
 705   else
 706   {
 707     zyn_addsynth_ptr->bandwidth_relbw = pow(25.0, (value - 64.0) / 64.0 * (zyn_addsynth_ptr->bandwidth_depth / 64.0));
 708   }
 709 }
 710
 711 void
 712 zyn_addsynth_set_modwheel(struct zyn_addsynth * zyn_addsynth_ptr, int value)
 713 {
 714   float tmp;
 715
 716   if (!zyn_addsynth_ptr->modwheel_exponential)
 717   {
 718     if ((value < 64) && (zyn_addsynth_ptr->modwheel_depth >= 64))
 719     {
 720       tmp = 1.0;
 721     }
 722     else
 723     {
 724       tmp = pow(25.0, pow(zyn_addsynth_ptr->modwheel_depth / 127.0, 1.5) * 2.0) / 25.0;
 725     }
 726
 727     zyn_addsynth_ptr->modwheel_relmod = (value / 64.0 - 1.0) * tmp + 1.0;
 728     if (zyn_addsynth_ptr->modwheel_relmod < 0.0)
 729     {
 730       zyn_addsynth_ptr->modwheel_relmod = 0.0;
 731     }
 732   }
 733   else
 734   {
 735     zyn_addsynth_ptr->modwheel_relmod = pow(25.0 , (value - 64.0) / 64.0 * (zyn_addsynth_ptr->modwheel_depth / 80.0));
 736   }
 737 }