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   /* Fine detune */
  52   unsigned short int fine;
  53
  54   /* Coarse detune + octave */
  55   unsigned short int coarse;
  56
  57   /* Detune type */
  58   unsigned char type;
  59 };
  60
  61 /***********************************************************/
  62 /*                    VOICE PARAMETERS                     */
  63 /***********************************************************/
  64 struct zyn_addnote_voice_parameters
  65 {
  66   /* whether voice is enabled */
  67   bool enabled;
  68
  69   /* Type of the voice (false = Sound, true = White Noise)*/
  70   bool white_noise;
  71
  72   /* Voice Delay */
  73   unsigned char PDelay;
  74
  75   /* whether resonance is enabled for this voice */
  76   bool resonance;
  77
  78   // What external oscil should I use, -1 for internal OscilSmp&FMSmp
  79   short int Pextoscil,PextFMoscil;
  80   // it is not allowed that the externoscil,externFMoscil => current voice
  81
  82   // oscillator phases
  83   unsigned char Poscilphase,PFMoscilphase;
  84
  85   // filter bypass
  86   unsigned char Pfilterbypass;
  87
  88   /* Voice oscillator */
  89   struct zyn_oscillator oscillator;
  90
  91   /**********************************
  92    *     FREQUENCY PARAMETERS        *
  93    **********************************/
  94
  95   struct zyn_detune detune;
  96   struct zyn_fixed_detune fixed_detune;
  97
  98   /* Frequency Envelope */
  99   unsigned char PFreqEnvelopeEnabled;
 100   EnvelopeParams m_frequency_envelope_params;
 101
 102   /* Frequency LFO */
 103   unsigned char PFreqLfoEnabled;
 104   struct zyn_lfo_parameters frequency_lfo_params;
 105
 106   /***************************
 107    *   AMPLITUDE PARAMETERS   *
 108    ***************************/
 109
 110   /* Panning       0 - random
 111      1 - left
 112      64 - center
 113      127 - right
 114      The Panning is ignored if the instrument is mono */
 115   unsigned char PPanning;
 116
 117   /* Voice Volume */
 118   unsigned char PVolume;
 119
 120   /* If the Volume negative */
 121   unsigned char PVolumeminus;
 122
 123   /* Velocity sensing */
 124   unsigned char PAmpVelocityScaleFunction;
 125
 126   /* Amplitude Envelope */
 127   unsigned char PAmpEnvelopeEnabled;
 128   EnvelopeParams m_amplitude_envelope_params;
 129
 130   /* Amplitude LFO */
 131   unsigned char PAmpLfoEnabled;
 132   struct zyn_lfo_parameters amplitude_lfo_params;
 133
 134   /*************************
 135    *   FILTER PARAMETERS    *
 136    *************************/
 137
 138   /* Voice Filter */
 139   unsigned char PFilterEnabled;
 140   FilterParams m_filter_params;
 141
 142   /* Filter Envelope */
 143   unsigned char PFilterEnvelopeEnabled;
 144   EnvelopeParams m_filter_envelope_params;
 145
 146   /* LFO Envelope */
 147   unsigned char PFilterLfoEnabled;
 148   struct zyn_lfo_parameters filter_lfo_params;
 149
 150   /****************************
 151    *   MODULLATOR PARAMETERS   *
 152    ****************************/
 153
 154   /* Modullator Parameters, one of ZYN_FM_TYPE_XXX */
 155   unsigned int fm_type;
 156
 157   /* Voice that I use as modullator instead of FMSmp.
 158      It is -1 if I use FMSmp(default).
 159      It maynot be equal or bigger than current voice */
 160   short int PFMVoice;
 161
 162   /* Modullator oscillator */
 163   struct zyn_oscillator modulator_oscillator;
 164
 165   /* Modullator Volume */
 166   unsigned char PFMVolume;
 167
 168   /* Modullator damping at higher frequencies */
 169   unsigned char PFMVolumeDamp;
 170
 171   /* Modullator Velocity Sensing */
 172   unsigned char PFMVelocityScaleFunction;
 173
 174   /* Detune of the Modullator */
 175   struct zyn_detune fm_detune;
 176
 177   /* Frequency Envelope of the Modullator */
 178   unsigned char PFMFreqEnvelopeEnabled;
 179   EnvelopeParams m_fm_frequency_envelope_params;
 180
 181   /* Frequency Envelope of the Modullator */
 182   unsigned char PFMAmpEnvelopeEnabled;
 183   EnvelopeParams m_fm_amplitude_envelope_params;
 184 };
 185
 186 #include "addsynth_component.h"
 187
 188 struct zyn_addsynth
 189 {
 190   float sample_rate;
 191   unsigned int polyphony;
 192   struct note_channel * notes_array;
 193   bool all_sound_off;
 194   zyn_fft_handle fft;
 195   unsigned char velsns;         // velocity sensing (amplitude velocity scale)
 196   zyn_sample_type oldfreq;      // this is used for portamento
 197
 198   bool random_panorama;         // whether panorama is random for each note
 199   float panorama;               // -1.0 for left, 0.0 for center, 1.0 for right
 200
 201   /* The instrument type - MONO/STEREO
 202      If the mode is MONO, the panning of voices are not used
 203      Stereo=true, Mono=false. */
 204   bool stereo;                  // stereo or mono
 205
 206   // How the Harmonic Amplitude is applied to voices that use the same oscillator
 207   bool random_grouping;
 208
 209   // RESONANCE
 210   struct zyn_resonance resonance;
 211
 212   // 0-127, Master volume
 213   unsigned char PVolume;
 214
 215   // 0-127, velocity sensing
 216   unsigned char PAmpVelocityScaleFunction;
 217
 218   // 0-127
 219   unsigned char PPunchStrength;
 220
 221   // 0-127
 222   unsigned char PPunchTime;
 223
 224   // 0-127
 225   unsigned char PPunchStretch;
 226
 227   // 0-127
 228   unsigned char PPunchVelocitySensing;
 229
 230   // Amplitude LFO parameters
 231   struct zyn_lfo_parameters amplitude_lfo_params;
 232
 233   EnvelopeParams m_amplitude_envelope_params;
 234
 235   int filter_type;              /* filter category/supertype, one of ZYN_FILTER_TYPE_XXX */
 236   FilterParams m_filter_params;
 237   zyn_filter_sv_handle filter_sv;
 238
 239   // Velocity sensing amount of the Filter, 0 .. 1
 240   float m_filter_velocity_sensing_amount;
 241
 242   // Velocity sensing function of the Filter, 1 .. -1
 243   float m_filter_velocity_scale_function;
 244
 245   // Filter LFO parameters
 246   struct zyn_lfo_parameters filter_lfo_params;
 247
 248   EnvelopeParams m_filter_envelope_params;
 249
 250   struct zyn_detune detune;
 251
 252   /* how much the relative fine detunes of the voices are changed */
 253   /* -1.0 .. 1.0 */
 254   float detune_bandwidth;
 255
 256   // Frequency LFO parameters
 257   struct zyn_lfo_parameters frequency_lfo_params;
 258
 259   EnvelopeParams m_frequency_envelope_params;
 260
 261   zyn_portamento portamento;
 262
 263   float pitch_bend_range;
 264   float pitch_bend;
 265   float pitch_bend_relative_frequency;
 266
 267   int bandwidth_depth;
 268   int bandwidth_exponential;
 269   float bandwidth_relbw;
 270
 271   int modwheel_depth;
 272   int modwheel_exponential;
 273   float modwheel_relmod;
 274
 275   zyn_sample_type * temporary_samples_ptr; // this array stores some termporary data and it has OSCIL_SIZE elements
 276   struct zyn_fft_freqs oscillator_fft_frequencies;
 277
 278   unsigned int voices_count;
 279
 280   struct zyn_addnote_voice_parameters * voices_params_ptr; /* array with one entry per voice */
 281
 282   struct zyn_component_descriptor global_components[ZYNADD_GLOBAL_COMPONENTS_COUNT];
 283
 284   struct zyn_component_descriptor * voices_components;
 285 };
 286
 287 #ifdef __cplusplus
 288 extern "C" {
 289 #endif
 290 #if 0
 291 } /* Adjust editor indent */
 292 #endif
 293
 294 float percent_from_0_127(unsigned char value);
 295 unsigned char percent_to_0_127(float value);
 296
 297 void zyn_addsynth_set_bandwidth(struct zyn_addsynth * zyn_addsynth_ptr, int value);
 298 void zyn_addsynth_set_modwheel(struct zyn_addsynth * zyn_addsynth_ptr, int value);
 299
 300 #if 0
 301 { /* Adjust editor indent */
 302 #endif
 303 #ifdef __cplusplus
 304 } /* extern "C" */
 305 #endif
 306
 307 #define ZYN_UPDATE_PITCH_BEND(zyn_addsynth_ptr)       \
 308   (zyn_addsynth_ptr)->pitch_bend_relative_frequency = \
 309     pow(2, (zyn_addsynth_ptr)->pitch_bend *           \
 310         (zyn_addsynth_ptr)->pitch_bend_range /        \
 311         1200.0);
 312
 313 #endif /* #ifndef ADDSYNTH_INTERNAL_H__9870368A_F1C9_4F0D_ADC1_B07ECFF2F9C7__INCLUDED */