research.m1stereo.tv/gitweb/ - melted/blob - src/modules/jackrack/plugin_settings.c

   1 /*
   2  * JACK Rack
   3  *
   4  * Original:
   5  * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
   6  *
   7  * Modification for MLT:
   8  * Copyright (C) 2004 Ushodaya Enterprises Limited
   9  * Author: Dan Dennedy <dan@dennedy.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 #define _GNU_SOURCE
  27
  28 #include <math.h>
  29
  30 #include "plugin_settings.h"
  31
  32
  33 static void
  34 settings_set_to_default (settings_t * settings, guint32 sample_rate)
  35 {
  36   unsigned long control;
  37   guint copy;
  38   LADSPA_Data value;
  39
  40   for (control = 0; control < settings->desc->control_port_count; control++)
  41     {
  42       value = plugin_desc_get_default_control_value (settings->desc, control, sample_rate);
  43
  44       for (copy = 0; copy < settings->copies; copy++)
  45         {
  46           settings->control_values[copy][control] = value;
  47         }
  48
  49       settings->locks[control] = TRUE;
  50     }
  51 }
  52
  53 settings_t *
  54 settings_new     (plugin_desc_t * desc, unsigned long channels, guint32 sample_rate)
  55 {
  56   settings_t * settings;
  57   unsigned long channel;
  58   guint copies;
  59
  60   settings = g_malloc (sizeof (settings_t));
  61   copies = plugin_desc_get_copies (desc, channels);
  62
  63   settings->sample_rate = sample_rate;
  64   settings->desc = desc;
  65   settings->copies = copies;
  66   settings->channels = channels;
  67   settings->lock_all = TRUE;
  68   settings->enabled = FALSE;
  69   settings->locks = NULL;
  70   settings->control_values = NULL;
  71   settings->wet_dry_enabled = FALSE;
  72   settings->wet_dry_locked = TRUE;
  73
  74   /* control settings */
  75   if (desc->control_port_count > 0)
  76     {
  77       guint copy;
  78
  79       settings->locks = g_malloc (sizeof (gboolean) * desc->control_port_count);
  80
  81       settings->control_values = g_malloc (sizeof (LADSPA_Data *) * copies);
  82       for (copy = 0; copy < copies; copy++)
  83         {
  84           settings->control_values[copy] = g_malloc (sizeof (LADSPA_Data) * desc->control_port_count);
  85         }
  86
  87       settings_set_to_default (settings, sample_rate);
  88     }
  89
  90   /* wet/dry settings */
  91   settings->wet_dry_values = g_malloc (sizeof (LADSPA_Data) * channels);
  92   for (channel = 0; channel < channels; channel++)
  93     settings->wet_dry_values[channel] = 1.0;
  94
  95   return settings;
  96 }
  97
  98 settings_t *
  99 settings_dup     (settings_t * other)
 100 {
 101   settings_t * settings;
 102   plugin_desc_t * desc;
 103   unsigned long channel;
 104
 105   settings = g_malloc (sizeof (settings_t));
 106
 107   settings->sample_rate     = other->sample_rate;
 108   settings->desc            = other->desc;
 109   settings->copies          = settings_get_copies (other);
 110   settings->channels        = settings_get_channels (other);
 111   settings->wet_dry_enabled = settings_get_wet_dry_enabled (other);
 112   settings->wet_dry_locked  = settings_get_wet_dry_locked (other);
 113   settings->lock_all        = settings_get_lock_all (other);
 114   settings->enabled         = settings_get_enabled (other);
 115   settings->locks           = NULL;
 116   settings->control_values  = NULL;
 117
 118   desc = other->desc;
 119
 120   if (desc->control_port_count > 0)
 121     {
 122       guint copy;
 123       unsigned long control;
 124
 125       settings->locks = g_malloc (sizeof (gboolean) * desc->control_port_count);
 126       for (control = 0; control < desc->control_port_count; control++)
 127         settings_set_lock (settings, control, settings_get_lock (other, control));
 128
 129       settings->control_values = g_malloc (sizeof (LADSPA_Data *) * settings->copies);
 130       for (copy = 0; copy < settings->copies; copy++)
 131         {
 132           settings->control_values[copy] = g_malloc (sizeof (LADSPA_Data) * desc->control_port_count);
 133
 134           for (control = 0; control < desc->control_port_count; control++)
 135             {
 136               settings->control_values[copy][control] = settings_get_control_value (other, copy, control);
 137             }
 138         }
 139     }
 140
 141   settings->wet_dry_values = g_malloc (sizeof (LADSPA_Data) * settings->channels);
 142   for (channel = 0; channel < settings->channels; channel++)
 143     settings->wet_dry_values[channel] = settings_get_wet_dry_value (other, channel);
 144
 145   return settings;
 146 }
 147
 148 void
 149 settings_destroy (settings_t * settings)
 150 {
 151   if (settings->desc->control_port_count > 0)
 152     {
 153       guint i;
 154       for (i = 0; i < settings->copies; i++)
 155         g_free (settings->control_values[i]);
 156
 157       g_free (settings->control_values);
 158       g_free (settings->locks);
 159     }
 160
 161   g_free (settings->wet_dry_values);
 162
 163   g_free (settings);
 164 }
 165
 166 static void
 167 settings_set_copies (settings_t * settings, guint copies)
 168 {
 169   guint copy;
 170   guint last_copy;
 171   unsigned long control;
 172
 173   if (copies <= settings->copies)
 174     return;
 175
 176   last_copy = settings->copies - 1;
 177
 178   settings->control_values = g_realloc (settings->control_values,
 179                                         sizeof (LADSPA_Data *) * copies);
 180
 181   /* copy over the last settings to the new copies */
 182   for (copy = settings->copies; copy < copies; copy++)
 183     {
 184       for (control = 0; control < settings->desc->control_port_count; control++)
 185         {
 186           settings->control_values[copy][control] =
 187             settings->control_values[last_copy][control];
 188         }
 189     }
 190
 191   settings->copies = copies;
 192 }
 193
 194 static void
 195 settings_set_channels (settings_t * settings, unsigned long channels)
 196 {
 197   unsigned long channel;
 198   LADSPA_Data last_value;
 199
 200   if (channels <= settings->channels)
 201     return;
 202
 203   settings->wet_dry_values = g_realloc (settings->wet_dry_values, sizeof (LADSPA_Data) * channels);
 204
 205   last_value = settings->wet_dry_values[settings->channels - 1];
 206
 207   for (channel = settings->channels; channel < channels; channel++)
 208     settings->wet_dry_values[channel] = last_value;
 209
 210   settings->channels = channels;
 211 }
 212
 213 void
 214 settings_set_sample_rate (settings_t * settings, guint32 sample_rate)
 215 {
 216   LADSPA_Data old_sample_rate;
 217   LADSPA_Data new_sample_rate;
 218
 219   g_return_if_fail (settings != NULL);
 220
 221   if (settings->sample_rate == sample_rate)
 222     return;
 223
 224   if (settings->desc->control_port_count > 0)
 225     {
 226       unsigned long control;
 227       guint copy;
 228
 229       new_sample_rate = (LADSPA_Data) sample_rate;
 230       old_sample_rate = (LADSPA_Data) settings->sample_rate;
 231
 232       for (control = 0; control < settings->desc->control_port_count; control++)
 233         {
 234           for (copy = 0; copy < settings->copies; copy++)
 235             {
 236               if (LADSPA_IS_HINT_SAMPLE_RATE (settings->desc->port_range_hints[control].HintDescriptor))
 237                 {
 238                   settings->control_values[copy][control] =
 239                     (settings->control_values[copy][control] / old_sample_rate) * new_sample_rate;
 240                 }
 241             }
 242         }
 243     }
 244
 245   settings->sample_rate = sample_rate;
 246 }
 247
 248 void
 249 settings_set_control_value (settings_t * settings, guint copy, unsigned long control_index, LADSPA_Data value)
 250 {
 251   g_return_if_fail (settings != NULL);
 252   g_return_if_fail (control_index < settings->desc->control_port_count);
 253
 254   if (copy >= settings->copies)
 255     settings_set_copies (settings, copy + 1);
 256
 257   settings->control_values[copy][control_index] = value;
 258 }
 259
 260 void
 261 settings_set_lock          (settings_t * settings, unsigned long control_index, gboolean locked)
 262 {
 263   g_return_if_fail (settings != NULL);
 264   g_return_if_fail (control_index < settings->desc->control_port_count);
 265
 266   settings->locks[control_index] = locked;
 267 }
 268
 269 void
 270 settings_set_lock_all (settings_t * settings, gboolean lock_all)
 271 {
 272   g_return_if_fail (settings != NULL);
 273
 274   settings->lock_all = lock_all;
 275 }
 276
 277 void
 278 settings_set_enabled (settings_t * settings, gboolean enabled)
 279 {
 280   g_return_if_fail (settings != NULL);
 281
 282   settings->enabled = enabled;
 283 }
 284
 285 void
 286 settings_set_wet_dry_enabled (settings_t * settings, gboolean enabled)
 287 {
 288   g_return_if_fail (settings != NULL);
 289
 290   settings->wet_dry_enabled = enabled;
 291 }
 292
 293 void
 294 settings_set_wet_dry_locked  (settings_t * settings, gboolean locked)
 295 {
 296   g_return_if_fail (settings != NULL);
 297
 298   settings->wet_dry_locked = locked;
 299 }
 300
 301 void
 302 settings_set_wet_dry_value   (settings_t * settings, unsigned long channel, LADSPA_Data value)
 303 {
 304   g_return_if_fail (settings != NULL);
 305
 306   if (channel >= settings->channels)
 307     settings_set_channels (settings, channel + 1);
 308
 309   settings->wet_dry_values[channel] = value;
 310 }
 311
 312
 313 LADSPA_Data
 314 settings_get_control_value (settings_t * settings, guint copy, unsigned long control_index)
 315 {
 316   g_return_val_if_fail (settings != NULL, NAN);
 317   g_return_val_if_fail (control_index < settings->desc->control_port_count, NAN);
 318
 319   if (copy >= settings->copies)
 320     settings_set_copies (settings, copy - 1);
 321
 322   return settings->control_values[copy][control_index];
 323 }
 324
 325 gboolean
 326 settings_get_lock          (const settings_t * settings, unsigned long control_index)
 327 {
 328   g_return_if_fail (settings != NULL);
 329
 330   return settings->locks[control_index];
 331 }
 332
 333 gboolean
 334 settings_get_lock_all      (const settings_t * settings)
 335 {
 336   g_return_if_fail (settings != NULL);
 337
 338   return settings->lock_all;
 339 }
 340
 341 gboolean
 342 settings_get_enabled      (const settings_t * settings)
 343 {
 344   g_return_if_fail (settings != NULL);
 345
 346   return settings->enabled;
 347 }
 348
 349 guint
 350 settings_get_copies        (const settings_t * settings)
 351 {
 352   g_return_if_fail (settings != NULL);
 353
 354   return settings->copies;
 355 }
 356
 357
 358 unsigned long
 359 settings_get_channels        (const settings_t * settings)
 360 {
 361   g_return_if_fail (settings != NULL);
 362
 363   return settings->channels;
 364 }
 365
 366 gboolean
 367 settings_get_wet_dry_enabled (const settings_t * settings)
 368 {
 369   g_return_if_fail (settings != NULL);
 370
 371   return settings->wet_dry_enabled;
 372 }
 373
 374 gboolean
 375 settings_get_wet_dry_locked  (const settings_t * settings)
 376 {
 377   g_return_if_fail (settings != NULL);
 378
 379   return settings->wet_dry_locked;
 380 }
 381
 382 LADSPA_Data
 383 settings_get_wet_dry_value   (settings_t * settings, unsigned long channel)
 384 {
 385   g_return_if_fail (settings != NULL);
 386
 387   if (channel >= settings->channels)
 388     settings_set_channels (settings, channel + 1);
 389
 390   return settings->wet_dry_values[channel];
 391 }
 392
 393
 394
 395 /* EOF */