sampler_prg.c

   1 /*
   2 Calf Box, an open source musical instrument.
   3 Copyright (C) 2010-2013 Krzysztof Foltman
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   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, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include "app.h"
  20 #include "blob.h"
  21 #include "instr.h"
  22 #include "rt.h"
  23 #include "sampler.h"
  24 #include "sampler_prg.h"
  25 #include "sfzloader.h"
  26 #include "tarfile.h"
  27
  28 #include <assert.h>
  29
  30 CBOX_CLASS_DEFINITION_ROOT(sampler_program)
  31
  32 GSList *sampler_program_get_next_layer(struct sampler_program *prg, struct sampler_channel *c, GSList *next_layer, int note, int vel, float random, gboolean is_first)
  33 {
  34     int ch = (c - c->module->channels) + 1;
  35     for(;next_layer;next_layer = g_slist_next(next_layer))
  36     {
  37         struct sampler_layer *lr = next_layer->data;
  38         struct sampler_layer_data *l = lr->runtime;
  39         if (!l->eff_waveform)
  40             continue;
  41         if ((l->trigger == stm_first && !is_first) ||
  42             (l->trigger == stm_legato && is_first))
  43             continue;
  44         if (l->sw_last != -1)
  45         {
  46             if (note >= l->sw_lokey && note <= l->sw_hikey)
  47                 lr->last_key = note;
  48         }
  49         if (note >= l->lokey && note <= l->hikey && vel >= l->lovel && vel <= l->hivel && ch >= l->lochan && ch <= l->hichan && random >= l->lorand && random < l->hirand &&
  50             (l->cc_number == -1 || (c->cc[l->cc_number] >= l->locc && c->cc[l->cc_number] <= l->hicc)))
  51         {
  52             if (!l->eff_use_keyswitch ||
  53                 ((l->sw_last == -1 || l->sw_last == lr->last_key) &&
  54                  (l->sw_down == -1 || (c->switchmask[l->sw_down >> 5] & (1 << (l->sw_down & 31)))) &&
  55                  (l->sw_up == -1 || !(c->switchmask[l->sw_up >> 5] & (1 << (l->sw_up & 31)))) &&
  56                  (l->sw_previous == -1 || l->sw_previous == c->previous_note)))
  57             {
  58                 gboolean play = lr->current_seq_position == 1;
  59                 lr->current_seq_position++;
  60                 if (lr->current_seq_position >= l->seq_length)
  61                     lr->current_seq_position = 1;
  62                 if (play)
  63                     return next_layer;
  64             }
  65         }
  66     }
  67     return NULL;
  68 }
  69
  70 static gboolean return_layers(GSList *layers, const char *keyword, struct cbox_command_target *fb, GError **error)
  71 {
  72     for (GSList *p = layers; p; p = g_slist_next(p))
  73     {
  74         if (!cbox_execute_on(fb, NULL, keyword, "o", error, p->data))
  75             return FALSE;
  76     }
  77     return TRUE;
  78 }
  79
  80 static gboolean sampler_program_process_cmd(struct cbox_command_target *ct, struct cbox_command_target *fb, struct cbox_osc_command *cmd, GError **error)
  81 {
  82     struct sampler_program *program = ct->user_data;
  83     if (!strcmp(cmd->command, "/status") && !strcmp(cmd->arg_types, ""))
  84     {
  85         if (!cbox_check_fb_channel(fb, cmd->command, error))
  86             return FALSE;
  87
  88         if (!((!program->name || cbox_execute_on(fb, NULL, "/name", "s", error, program->name)) &&
  89             cbox_execute_on(fb, NULL, "/sample_dir", "s", error, program->sample_dir) &&
  90             cbox_execute_on(fb, NULL, "/source_file", "s", error, program->source_file) &&
  91             cbox_execute_on(fb, NULL, "/program_no", "i", error, program->prog_no) &&
  92             cbox_execute_on(fb, NULL, "/in_use", "i", error, program->in_use) &&
  93             CBOX_OBJECT_DEFAULT_STATUS(program, fb, error)))
  94             return FALSE;
  95         return TRUE;
  96     }
  97     if (!strcmp(cmd->command, "/regions") && !strcmp(cmd->arg_types, ""))
  98     {
  99         if (!cbox_check_fb_channel(fb, cmd->command, error))
 100             return FALSE;
 101         return return_layers(program->all_layers, "/region", fb, error);
 102     }
 103     if (!strcmp(cmd->command, "/groups") && !strcmp(cmd->arg_types, ""))
 104     {
 105         if (!cbox_check_fb_channel(fb, cmd->command, error))
 106             return FALSE;
 107         if (!cbox_execute_on(fb, NULL, "/default_group", "o", error, program->default_group))
 108             return FALSE;
 109         return return_layers(program->groups, "/group", fb, error);
 110     }
 111     if (!strcmp(cmd->command, "/control_inits") && !strcmp(cmd->arg_types, ""))
 112     {
 113         if (!cbox_check_fb_channel(fb, cmd->command, error))
 114             return FALSE;
 115         for (GSList *p = program->ctrl_init_list; p; p = p->next)
 116         {
 117             const struct sampler_ctrlinit *cin = (const struct sampler_ctrlinit *)&p->data;
 118             if (!cbox_execute_on(fb, NULL, "/control_init", "ii", error, (int)cin->controller, (int)cin->value))
 119                 return FALSE;
 120         }
 121         return TRUE;
 122     }
 123     if (!strcmp(cmd->command, "/add_control_init") && !strcmp(cmd->arg_types, "ii"))
 124     {
 125         sampler_program_add_controller_init(program, CBOX_ARG_I(cmd, 0), CBOX_ARG_I(cmd, 1));
 126         return TRUE;
 127     }
 128     if (!strcmp(cmd->command, "/delete_control_init") && !strcmp(cmd->arg_types, "ii"))
 129     {
 130         sampler_program_remove_controller_init(program, CBOX_ARG_I(cmd, 0), CBOX_ARG_I(cmd, 1));
 131         return TRUE;
 132     }
 133     if (!strcmp(cmd->command, "/new_group") && !strcmp(cmd->arg_types, ""))
 134     {
 135         struct sampler_layer *l = sampler_layer_new(program->module, program, NULL);
 136         sampler_program_add_group(program, l);
 137         return cbox_execute_on(fb, NULL, "/uuid", "o", error, l);
 138     }
 139     if (!strcmp(cmd->command, "/clone_to") && !strcmp(cmd->arg_types, "si"))
 140     {
 141         struct cbox_instrument *instrument = (struct cbox_instrument *)CBOX_ARG_O(cmd, 0, program, cbox_instrument, error);
 142         if (!instrument)
 143             return FALSE;
 144         struct cbox_module *module = instrument->module;
 145         if (strcmp(module->engine_name, "sampler"))
 146         {
 147             g_set_error(error, CBOX_MODULE_ERROR, CBOX_MODULE_ERROR_FAILED, "Cannot copy sampler program to module '%s' of type '%s'", module->instance_name, module->engine_name);
 148             return FALSE;
 149         }
 150         struct sampler_program *prg = sampler_program_clone(program, (struct sampler_module *)module, CBOX_ARG_I(cmd, 1), error);
 151         if (!prg)
 152             return FALSE;
 153         sampler_register_program((struct sampler_module *)module, prg);
 154         return cbox_execute_on(fb, NULL, "/uuid", "o", error, prg);
 155     }
 156     if (!strcmp(cmd->command, "/load_file") && !strcmp(cmd->arg_types, "si"))
 157     {
 158         if (!cbox_check_fb_channel(fb, cmd->command, error))
 159             return FALSE;
 160         struct cbox_blob *blob = cbox_blob_new_from_file(program->name, program->tarfile, program->sample_dir, CBOX_ARG_S(cmd, 0), CBOX_ARG_I(cmd, 1), error);
 161         if (!blob)
 162             return FALSE;
 163         return cbox_execute_on(fb, NULL, "/data", "b", error, blob);
 164     }
 165     return cbox_object_default_process_cmd(ct, fb, cmd, error);
 166 }
 167
 168 struct sampler_program *sampler_program_new(struct sampler_module *m, int prog_no, const char *name, struct cbox_tarfile *tarfile, const char *sample_dir, GError **error)
 169 {
 170     gchar *perm_sample_dir = g_strdup(sample_dir);
 171     if (!perm_sample_dir)
 172         return NULL;
 173
 174     struct cbox_document *doc = CBOX_GET_DOCUMENT(&m->module);
 175     struct sampler_program *prg = malloc(sizeof(struct sampler_program));
 176     if (!prg)
 177     {
 178         g_free(perm_sample_dir);
 179         return NULL;
 180     }
 181     memset(prg, 0, sizeof(*prg));
 182     CBOX_OBJECT_HEADER_INIT(prg, sampler_program, doc);
 183     cbox_command_target_init(&prg->cmd_target, sampler_program_process_cmd, prg);
 184
 185     prg->module = m;
 186     prg->prog_no = prog_no;
 187     prg->name = g_strdup(name);
 188     prg->tarfile = tarfile;
 189     prg->source_file = NULL;
 190     prg->sample_dir = perm_sample_dir;
 191     prg->all_layers = NULL;
 192     prg->rll = NULL;
 193     prg->groups = NULL;
 194     prg->ctrl_init_list = NULL;
 195     prg->default_group = sampler_layer_new(m, prg, NULL);
 196     prg->deleting = FALSE;
 197     prg->in_use = 0;
 198     CBOX_OBJECT_REGISTER(prg);
 199     return prg;
 200 }
 201
 202 struct sampler_program *sampler_program_new_from_cfg(struct sampler_module *m, const char *cfg_section, const char *name, int pgm_id, GError **error)
 203 {
 204     int i;
 205
 206     char *name2 = NULL, *sfz_path = NULL, *spath = NULL, *tar_name = NULL;
 207     const char *sfz = NULL;
 208     struct cbox_tarfile *tarfile = NULL;
 209
 210     g_clear_error(error);
 211     tar_name = cbox_config_get_string(cfg_section, "tar");
 212     if (!strncmp(cfg_section, "spgm:!", 6))
 213     {
 214         sfz = cfg_section + 6;
 215         if (!strncmp(sfz, "sbtar:", 6))
 216         {
 217             sfz_path = ".";
 218             gchar *p = strchr(sfz + 6, ';');
 219             if (p)
 220             {
 221                 char *tmp = g_strndup(sfz + 6, p - sfz - 6);
 222                 tarfile = cbox_tarpool_get_tarfile(app.tarpool, tmp, error);
 223                 g_free(tmp);
 224                 if (!tarfile)
 225                     return NULL;
 226                 sfz = p + 1;
 227                 name2 = p + 1;
 228             }
 229             else
 230             {
 231                 g_set_error(error, CBOX_MODULE_ERROR, CBOX_MODULE_ERROR_FAILED, "Cannot load sampler program '%s' from section '%s': missing name of a file inside a tar archive", name, cfg_section);
 232                 return NULL;
 233             }
 234         }
 235         else
 236         {
 237             name2 = strrchr(name, '/');
 238             if (name2)
 239                 name2++;
 240         }
 241     }
 242     else
 243     {
 244         if (tar_name)
 245         {
 246             tarfile = cbox_tarpool_get_tarfile(app.tarpool, tar_name, error);
 247             if (!tarfile)
 248                 return NULL;
 249         }
 250         if (!sfz && !cbox_config_has_section(cfg_section))
 251         {
 252             g_set_error(error, CBOX_MODULE_ERROR, CBOX_MODULE_ERROR_FAILED, "Cannot load sampler program '%s' from section '%s': section not found", name, cfg_section);
 253             return FALSE;
 254         }
 255         name2 = cbox_config_get_string(cfg_section, "name");
 256
 257         sfz_path = cbox_config_get_string(cfg_section, "sfz_path");
 258         spath = cbox_config_get_string(cfg_section, "sample_path");
 259         sfz = cbox_config_get_string(cfg_section, "sfz");
 260         if (tarfile && !sfz_path)
 261             sfz_path = ".";
 262     }
 263
 264     if (sfz && !sfz_path && !spath && !tarfile)
 265     {
 266         char *lastslash = strrchr(sfz, '/');
 267         if (lastslash && !sfz_path && !spath)
 268         {
 269             char *tmp = g_strndup(sfz, lastslash - sfz);
 270             sfz_path = cbox_config_permify(tmp);
 271             g_free(tmp);
 272             sfz = lastslash + 1;
 273         }
 274     }
 275
 276     struct sampler_program *prg = sampler_program_new(
 277         m,
 278         pgm_id != -1 ? pgm_id : cbox_config_get_int(cfg_section, "program", 0),
 279         name2 ? name2 : name,
 280         tarfile,
 281         spath ? spath : (sfz_path ? sfz_path : ""),
 282         error
 283     );
 284     if (!prg)
 285         return NULL;
 286
 287     if (sfz)
 288     {
 289         if (sfz_path)
 290             prg->source_file = g_build_filename(sfz_path, sfz, NULL);
 291         else
 292         {
 293             prg->source_file = g_strdup(sfz);
 294         }
 295
 296         if (sampler_module_load_program_sfz(m, prg, prg->source_file, FALSE, error))
 297             return prg;
 298         CBOX_DELETE(prg);
 299         return NULL;
 300     }
 301
 302     for (i = 0; ; i++)
 303     {
 304         char *where = NULL;
 305         gchar *s = g_strdup_printf("layer%d", 1 + i);
 306         const char *layer_section = cbox_config_get_string(cfg_section, s);
 307         g_free(s);
 308         if (!layer_section)
 309             break;
 310         where = g_strdup_printf("slayer:%s", layer_section);
 311
 312         prg->source_file = g_strdup_printf("config:%s", cfg_section);
 313         struct sampler_layer *l = sampler_layer_new_from_section(m, prg, where);
 314         if (!l)
 315             g_warning("Sample layer '%s' cannot be created - skipping", layer_section);
 316         else
 317         {
 318             sampler_layer_update(l);
 319             if (!l->data.eff_waveform)
 320                 g_warning("Sample layer '%s' does not have a waveform - skipping", layer_section);
 321             else
 322                 sampler_program_add_layer(prg, l);
 323         }
 324         g_free(where);
 325     }
 326     prg->all_layers = g_slist_reverse(prg->all_layers);
 327     sampler_program_update_layers(prg);
 328     return prg;
 329 }
 330
 331 void sampler_program_add_layer(struct sampler_program *prg, struct sampler_layer *l)
 332 {
 333     // Always call sampler_update_layer before sampler_program_add_layer.
 334     assert(l->runtime);
 335     prg->all_layers = g_slist_prepend(prg->all_layers, l);
 336 }
 337
 338 void sampler_program_delete_layer(struct sampler_program *prg, struct sampler_layer *l)
 339 {
 340     prg->all_layers = g_slist_remove(prg->all_layers, l);
 341 }
 342
 343
 344 void sampler_program_add_group(struct sampler_program *prg, struct sampler_layer *l)
 345 {
 346     prg->groups = g_slist_prepend(prg->groups, l);
 347 }
 348
 349 void sampler_program_add_controller_init(struct sampler_program *prg, uint8_t controller, uint8_t value)
 350 {
 351     union sampler_ctrlinit_union u;
 352     u.ptr = NULL;
 353     u.cinit.controller = controller;
 354     u.cinit.value = value;
 355     prg->ctrl_init_list = g_slist_append(prg->ctrl_init_list, u.ptr);
 356 }
 357
 358 void sampler_program_remove_controller_init(struct sampler_program *prg, uint8_t controller, int which)
 359 {
 360     for (GSList **p = &prg->ctrl_init_list; *p; )
 361     {
 362         const struct sampler_ctrlinit *cin = (const struct sampler_ctrlinit *)&(*p)->data;
 363         if (cin->controller != controller)
 364         {
 365             p = &((*p)->next);
 366             continue;
 367         }
 368         if (which > 0)
 369             which--;
 370         GSList *q = (GSList *)cbox_rt_swap_pointers(prg->module->module.rt, (void **)p, (*p)->next);
 371         g_slist_free1(q);
 372         if (which == 0)
 373             break;
 374     }
 375 }
 376
 377 void sampler_program_destroyfunc(struct cbox_objhdr *hdr_ptr)
 378 {
 379     struct sampler_program *prg = CBOX_H2O(hdr_ptr);
 380     sampler_unselect_program(prg->module, prg);
 381     if (prg->rll)
 382     {
 383         sampler_rll_destroy(prg->rll);
 384         prg->rll = NULL;
 385     }
 386     for (GSList *p = prg->all_layers; p; p = g_slist_next(p))
 387         CBOX_DELETE((struct sampler_layer *)p->data);
 388     for (GSList *p = prg->groups; p; p = g_slist_next(p))
 389         CBOX_DELETE((struct sampler_layer *)p->data);
 390     CBOX_DELETE(prg->default_group);
 391
 392     g_free(prg->name);
 393     g_free(prg->sample_dir);
 394     g_free(prg->source_file);
 395     g_slist_free(prg->all_layers);
 396     g_slist_free(prg->ctrl_init_list);
 397     if (prg->tarfile)
 398         cbox_tarpool_release_tarfile(app.tarpool, prg->tarfile);
 399     free(prg);
 400 }
 401
 402 void sampler_program_update_layers(struct sampler_program *prg)
 403 {
 404     struct sampler_module *m = prg->module;
 405     struct sampler_rll *new_rll = sampler_rll_new_from_program(prg);
 406     struct sampler_rll *old_rll = cbox_rt_swap_pointers(m->module.rt, (void **)&prg->rll, new_rll);
 407     if (old_rll)
 408         sampler_rll_destroy(old_rll);
 409 }
 410
 411 static void add_child_layers_of_group(struct sampler_program *newprg, struct sampler_layer *group)
 412 {
 413     sampler_layer_update(group);
 414
 415     GHashTableIter iter;
 416     g_hash_table_iter_init(&iter, group->child_layers);
 417     gpointer key, value;
 418     while(g_hash_table_iter_next(&iter, &key, &value))
 419     {
 420         sampler_layer_reset_switches((struct sampler_layer *)key, newprg->module);
 421         sampler_program_add_layer(newprg, (struct sampler_layer *)key);
 422     }
 423 }
 424
 425 struct sampler_program *sampler_program_clone(struct sampler_program *prg, struct sampler_module *m, int prog_no, GError **error)
 426 {
 427     struct sampler_program *newprg = sampler_program_new(m, prog_no, prg->name, prg->tarfile, prg->sample_dir, error);
 428     if (!newprg)
 429         return NULL;
 430     if (prg->source_file)
 431         newprg->source_file = g_strdup(prg->source_file);
 432     // The values are stored as a union aliased with the data pointer, so no need to deep-copy
 433     newprg->ctrl_init_list = g_slist_copy(prg->ctrl_init_list);
 434     newprg->rll = NULL;
 435     if (prg->default_group)
 436     {
 437         // XXXKF remove the original default group
 438         newprg->default_group = sampler_layer_new_clone(prg->default_group, m, newprg, NULL);
 439         add_child_layers_of_group(newprg, newprg->default_group);
 440     }
 441     newprg->groups = g_slist_copy(prg->groups);
 442     for (GSList *p = newprg->groups; p; p = g_slist_next(p))
 443     {
 444         struct sampler_layer *l = p->data;
 445         l = sampler_layer_new_clone(l, m, newprg, NULL);
 446         p->data = l;
 447         add_child_layers_of_group(newprg, l);
 448     }
 449     sampler_program_update_layers(newprg);
 450     if (newprg->tarfile)
 451         newprg->tarfile->refs++;
 452
 453     return newprg;
 454 }
 455
 456 /////////////////////////////////////////////////////////////////////////////////
 457
 458 struct sampler_rll *sampler_rll_new_from_program(struct sampler_program *prg)
 459 {
 460     struct sampler_rll *rll = malloc(sizeof(struct sampler_rll));
 461     rll->layers = NULL;
 462     rll->layers_release = NULL;
 463     rll->layers_oncc = NULL;
 464     for (int i = 0; i < 4; i++)
 465         rll->cc_trigger_bitmask[i] = 0;
 466
 467     for (GSList *p = prg->all_layers; p; p = g_slist_next(p))
 468     {
 469         struct sampler_layer *l = p->data;
 470         int cc = l->data.on_cc_number;
 471         if (cc != -1)
 472         {
 473             rll->layers_oncc = g_slist_prepend(rll->layers_oncc, l);
 474             rll->cc_trigger_bitmask[cc >> 5] |= 1 << (cc & 31);
 475         }
 476         else if (l->data.trigger == stm_release)
 477             rll->layers_release = g_slist_prepend(rll->layers_release, l);
 478         else
 479             rll->layers = g_slist_prepend(rll->layers, l);
 480     }
 481     return rll;
 482 }
 483
 484 void sampler_rll_destroy(struct sampler_rll *rll)
 485 {
 486     g_slist_free(rll->layers);
 487     g_slist_free(rll->layers_release);
 488     g_slist_free(rll->layers_oncc);
 489     free(rll);
 490 }