addsynth_internal.h

   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 #ifndef ADDSYNTH_INTERNAL_H__9870368A_F1C9_4F0D_ADC1_B07ECFF2F9C7__INCLUDED
  22 #define ADDSYNTH_INTERNAL_H__9870368A_F1C9_4F0D_ADC1_B07ECFF2F9C7__INCLUDED
  23
  24 #include "filter_common.h"
  25 #include "filter_sv.h"
  26
  27 struct note_channel;
  28
  29 #define ZYN_FM_TYPE_NONE          0
  30 #define ZYN_FM_TYPE_MORPH         1
  31 #define ZYN_FM_TYPE_RING_MOD      2
  32 #define ZYN_FM_TYPE_PHASE_MOD     3
  33 #define ZYN_FM_TYPE_FREQ_MOD      4
  34 #define ZYN_FM_TYPE_PITCH_MOD     5 /* code for this is disabled for some reason */
  35
  36 #define ZYN_DETUNE_NORMAL           0 /* the base frequency is normal one */
  37 #define ZYN_DETUNE_FIXED_440        1 /* the base frequency is fixed to 440 Hz */
  38 #define ZYN_DETUNE_EQUAL_TEMPERATE  2 /* Equal temperate */
  39
  40 struct zyn_fixed_detune
  41 {
  42   int mode;                     /* One of ZYN_DETUNE_XXX */
  43
  44   /* 0 .. 127 */
  45   /* at 64, 1 MIDI halftone -> 1 frequency halftone */
  46   unsigned char equal_temperate;
  47 };
  48
  49 struct zyn_detune
  50 {
  51   signed int type;       /* Detune type, one of ZYN_DETUNE_TYPE_XXX */
  52   signed int octave;     /* Octave, -8..7 */
  53   signed int coarse;     /* Coarse detune, -64 .. 63 */
  54   float fine;            /* Fine detune, -1..1 */
  55 };
  56
  57 /***********************************************************/
  58 /*                    VOICE PARAMETERS                     */
  59 /***********************************************************/
  60 struct zyn_addnote_voice_parameters
  61 {
  62   /* whether voice is enabled */
  63   bool enabled;
  64
  65   /* Type of the voice (false = Sound, true = White Noise)*/
  66   bool white_noise;
  67
  68   /* Voice Delay */
  69   unsigned char PDelay;
  70
  71   /* whether resonance is enabled for this voice */
  72   bool resonance;
  73
  74   // What external oscil should I use, -1 for internal OscilSmp&FMSmp
  75   short int Pextoscil,PextFMoscil;
  76   // it is not allowed that the externoscil,externFMoscil => current voice
  77
  78   // oscillator phases
  79   unsigned char Poscilphase,PFMoscilphase;
  80
  81   // filter bypass
  82   unsigned char Pfilterbypass;
  83
  84   /* Voice oscillator */
  85   struct zyn_oscillator oscillator;
  86
  87   /**********************************
  88    *     FREQUENCY PARAMETERS        *
  89    **********************************/
  90
  91   struct zyn_detune detune;
  92   struct zyn_fixed_detune fixed_detune;
  93
  94   /* Frequency Envelope */
  95   unsigned char PFreqEnvelopeEnabled;
  96   EnvelopeParams m_frequency_envelope_params;
  97
  98   /* Frequency LFO */
  99   unsigned char PFreqLfoEnabled;
 100   struct zyn_lfo_parameters frequency_lfo_params;
 101
 102   /***************************
 103    *   AMPLITUDE PARAMETERS   *
 104    ***************************/
 105
 106   /* Panning       0 - random
 107      1 - left
 108      64 - center
 109      127 - right
 110      The Panning is ignored if the instrument is mono */
 111   unsigned char PPanning;
 112
 113   /* Voice Volume */
 114   unsigned char PVolume;
 115
 116   /* If the Volume negative */
 117   unsigned char PVolumeminus;
 118
 119   /* Velocity sensing */
 120   unsigned char PAmpVelocityScaleFunction;
 121
 122   /* Amplitude Envelope */
 123   unsigned char PAmpEnvelopeEnabled;
 124   EnvelopeParams m_amplitude_envelope_params;
 125
 126   /* Amplitude LFO */
 127   unsigned char PAmpLfoEnabled;
 128   struct zyn_lfo_parameters amplitude_lfo_params;
 129
 130   /*************************
 131    *   FILTER PARAMETERS    *
 132    *************************/
 133
 134   /* Voice Filter */
 135   unsigned char PFilterEnabled;
 136   FilterParams m_filter_params;
 137
 138   /* Filter Envelope */
 139   unsigned char PFilterEnvelopeEnabled;
 140   EnvelopeParams m_filter_envelope_params;
 141
 142   /* LFO Envelope */
 143   unsigned char PFilterLfoEnabled;
 144   struct zyn_lfo_parameters filter_lfo_params;
 145
 146   /****************************
 147    *   MODULLATOR PARAMETERS   *
 148    ****************************/
 149
 150   /* Modullator Parameters, one of ZYN_FM_TYPE_XXX */
 151   unsigned int fm_type;
 152
 153   /* Voice that I use as modullator instead of FMSmp.
 154      It is -1 if I use FMSmp(default).
 155      It maynot be equal or bigger than current voice */
 156   short int PFMVoice;
 157
 158   /* Modullator oscillator */
 159   struct zyn_oscillator modulator_oscillator;
 160
 161   /* Modullator Volume */
 162   unsigned char PFMVolume;
 163
 164   /* Modullator damping at higher frequencies */
 165   unsigned char PFMVolumeDamp;
 166
 167   /* Modullator Velocity Sensing */
 168   unsigned char PFMVelocityScaleFunction;
 169
 170   /* Detune of the Modullator */
 171   struct zyn_detune fm_detune;
 172
 173   /* Frequency Envelope of the Modullator */
 174   unsigned char PFMFreqEnvelopeEnabled;
 175   EnvelopeParams m_fm_frequency_envelope_params;
 176
 177   /* Frequency Envelope of the Modullator */
 178   unsigned char PFMAmpEnvelopeEnabled;
 179   EnvelopeParams m_fm_amplitude_envelope_params;
 180 };
 181
 182 #include "addsynth_component.h"
 183
 184 struct zyn_addsynth
 185 {
 186   float sample_rate;
 187   unsigned int polyphony;
 188   struct note_channel * notes_array;
 189   bool all_sound_off;
 190   zyn_fft_handle fft;
 191   unsigned char velsns;         // velocity sensing (amplitude velocity scale)
 192   zyn_sample_type oldfreq;      // this is used for portamento
 193
 194   bool random_panorama;         // whether panorama is random for each note
 195   float panorama;               // -1.0 for left, 0.0 for center, 1.0 for right
 196
 197   /* The instrument type - MONO/STEREO
 198      If the mode is MONO, the panning of voices are not used
 199      Stereo=true, Mono=false. */
 200   bool stereo;                  // stereo or mono
 201
 202   // How the Harmonic Amplitude is applied to voices that use the same oscillator
 203   bool random_grouping;
 204
 205   // RESONANCE
 206   struct zyn_resonance resonance;
 207
 208   // 0-127, Master volume
 209   unsigned char PVolume;
 210
 211   // 0-127, velocity sensing
 212   unsigned char PAmpVelocityScaleFunction;
 213
 214   // 0-127
 215   unsigned char PPunchStrength;
 216
 217   // 0-127
 218   unsigned char PPunchTime;
 219
 220   // 0-127
 221   unsigned char PPunchStretch;
 222
 223   // 0-127
 224   unsigned char PPunchVelocitySensing;
 225
 226   // Amplitude LFO parameters
 227   struct zyn_lfo_parameters amplitude_lfo_params;
 228
 229   EnvelopeParams m_amplitude_envelope_params;
 230
 231   int filter_type;              /* filter category/supertype, one of ZYN_FILTER_TYPE_XXX */
 232   FilterParams m_filter_params;
 233   zyn_filter_sv_handle filter_sv;
 234
 235   // Velocity sensing amount of the Filter, 0 .. 1
 236   float m_filter_velocity_sensing_amount;
 237
 238   // Velocity sensing function of the Filter, 1 .. -1
 239   float m_filter_velocity_scale_function;
 240
 241   // Filter LFO parameters
 242   struct zyn_lfo_parameters filter_lfo_params;
 243
 244   EnvelopeParams m_filter_envelope_params;
 245
 246   struct zyn_detune detune;
 247
 248   /* how much the relative fine detunes of the voices are changed */
 249   /* -1.0 .. 1.0 */
 250   float detune_bandwidth;
 251
 252   // Frequency LFO parameters
 253   struct zyn_lfo_parameters frequency_lfo_params;
 254
 255   EnvelopeParams m_frequency_envelope_params;
 256
 257   zyn_portamento portamento;
 258
 259   float pitch_bend_range;
 260   float pitch_bend;
 261   float pitch_bend_relative_frequency;
 262
 263   int bandwidth_depth;
 264   int bandwidth_exponential;
 265   float bandwidth_relbw;
 266
 267   int modwheel_depth;
 268   int modwheel_exponential;
 269   float modwheel_relmod;
 270
 271   zyn_sample_type * temporary_samples_ptr; // this array stores some termporary data and it has OSCIL_SIZE elements
 272   struct zyn_fft_freqs oscillator_fft_frequencies;
 273
 274   unsigned int voices_count;
 275
 276   struct zyn_addnote_voice_parameters * voices_params_ptr; /* array with one entry per voice */
 277
 278   struct zyn_component_descriptor global_components[ZYNADD_GLOBAL_COMPONENTS_COUNT];
 279
 280   struct zyn_component_descriptor * voices_components;
 281 };
 282
 283 #ifdef __cplusplus
 284 extern "C" {
 285 #endif
 286 #if 0
 287 } /* Adjust editor indent */
 288 #endif
 289
 290 float percent_from_0_127(unsigned char value);
 291 unsigned char percent_to_0_127(float value);
 292
 293 void zyn_addsynth_set_bandwidth(struct zyn_addsynth * zyn_addsynth_ptr, int value);
 294 void zyn_addsynth_set_modwheel(struct zyn_addsynth * zyn_addsynth_ptr, int value);
 295
 296 #if 0
 297 { /* Adjust editor indent */
 298 #endif
 299 #ifdef __cplusplus
 300 } /* extern "C" */
 301 #endif
 302
 303 #define ZYN_UPDATE_PITCH_BEND(zyn_addsynth_ptr)       \
 304   (zyn_addsynth_ptr)->pitch_bend_relative_frequency = \
 305     pow(2, (zyn_addsynth_ptr)->pitch_bend *           \
 306         (zyn_addsynth_ptr)->pitch_bend_range /        \
 307         1200.0);
 308
 309 #endif /* #ifndef ADDSYNTH_INTERNAL_H__9870368A_F1C9_4F0D_ADC1_B07ECFF2F9C7__INCLUDED */