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 "rt.h"
  20 #include "sampler.h"
  21 #include "sampler_prg.h"
  22 #include "sfzloader.h"
  23
  24 #include <assert.h>
  25
  26 CBOX_CLASS_DEFINITION_ROOT(sampler_program)
  27
  28 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)
  29 {
  30     int ch = (c - c->module->channels) + 1;
  31     for(;next_layer;next_layer = g_slist_next(next_layer))
  32     {
  33         struct sampler_layer *lr = next_layer->data;
  34         struct sampler_layer_data *l = lr->runtime;
  35         if (!l->eff_waveform)
  36             continue;
  37         if ((l->trigger == stm_first && !is_first) ||
  38             (l->trigger == stm_legato && is_first))
  39             continue;
  40         if (l->sw_last != -1)
  41         {
  42             if (note >= l->sw_lokey && note <= l->sw_hikey)
  43                 lr->last_key = note;
  44         }
  45         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 &&
  46             (l->cc_number == -1 || (c->cc[l->cc_number] >= l->locc && c->cc[l->cc_number] <= l->hicc)))
  47         {
  48             if (!l->eff_use_keyswitch ||
  49                 ((l->sw_last == -1 || l->sw_last == lr->last_key) &&
  50                  (l->sw_down == -1 || (c->switchmask[l->sw_down >> 5] & (1 << (l->sw_down & 31)))) &&
  51                  (l->sw_up == -1 || !(c->switchmask[l->sw_up >> 5] & (1 << (l->sw_up & 31)))) &&
  52                  (l->sw_previous == -1 || l->sw_previous == c->previous_note)))
  53             {
  54                 gboolean play = lr->current_seq_position == 1;
  55                 lr->current_seq_position++;
  56                 if (lr->current_seq_position >= l->seq_length)
  57                     lr->current_seq_position = 1;
  58                 if (play)
  59                     return next_layer;
  60             }
  61         }
  62     }
  63     return NULL;
  64 }
  65
  66 static gboolean return_layers(GSList *layers, const char *keyword, struct cbox_command_target *fb, GError **error)
  67 {
  68     for (GSList *p = layers; p; p = g_slist_next(p))
  69     {
  70         if (!cbox_execute_on(fb, NULL, keyword, "o", error, p->data))
  71             return FALSE;
  72     }
  73     return TRUE;
  74 }
  75
  76 static gboolean sampler_program_process_cmd(struct cbox_command_target *ct, struct cbox_command_target *fb, struct cbox_osc_command *cmd, GError **error)
  77 {
  78     struct sampler_program *program = ct->user_data;
  79     if (!strcmp(cmd->command, "/status") && !strcmp(cmd->arg_types, ""))
  80     {
  81         if (!cbox_check_fb_channel(fb, cmd->command, error))
  82             return FALSE;
  83
  84         if (!((!program->name || cbox_execute_on(fb, NULL, "/name", "s", error, program->name)) &&
  85             cbox_execute_on(fb, NULL, "/sample_dir", "s", error, program->sample_dir) &&
  86             cbox_execute_on(fb, NULL, "/source_file", "s", error, program->source_file) &&
  87             cbox_execute_on(fb, NULL, "/program_no", "i", error, program->prog_no) &&
  88             cbox_execute_on(fb, NULL, "/in_use", "i", error, program->in_use) &&
  89             CBOX_OBJECT_DEFAULT_STATUS(program, fb, error)))
  90             return FALSE;
  91         return TRUE;
  92     }
  93     if (!strcmp(cmd->command, "/regions") && !strcmp(cmd->arg_types, ""))
  94     {
  95         if (!cbox_check_fb_channel(fb, cmd->command, error))
  96             return FALSE;
  97         return return_layers(program->all_layers, "/region", fb, error);
  98     }
  99     if (!strcmp(cmd->command, "/groups") && !strcmp(cmd->arg_types, ""))
 100     {
 101         if (!cbox_check_fb_channel(fb, cmd->command, error))
 102             return FALSE;
 103         if (!cbox_execute_on(fb, NULL, "/default_group", "o", error, program->default_group))
 104             return FALSE;
 105         return return_layers(program->groups, "/group", fb, error);
 106     }
 107     if (!strcmp(cmd->command, "/control_inits") && !strcmp(cmd->arg_types, ""))
 108     {
 109         if (!cbox_check_fb_channel(fb, cmd->command, error))
 110             return FALSE;
 111         for (GSList *p = program->ctrl_init_list; p; p = p->next)
 112         {
 113             const struct sampler_ctrlinit *cin = (const struct sampler_ctrlinit *)&p->data;
 114             if (!cbox_execute_on(fb, NULL, "/control_init", "ii", error, (int)cin->controller, (int)cin->value))
 115                 return FALSE;
 116         }
 117         return TRUE;
 118     }
 119     if (!strcmp(cmd->command, "/add_control_init") && !strcmp(cmd->arg_types, "ii"))
 120     {
 121         sampler_program_add_controller_init(program, CBOX_ARG_I(cmd, 0), CBOX_ARG_I(cmd, 1));
 122         return TRUE;
 123     }
 124     if (!strcmp(cmd->command, "/delete_control_init") && !strcmp(cmd->arg_types, "ii"))
 125     {
 126         sampler_program_remove_controller_init(program, CBOX_ARG_I(cmd, 0), CBOX_ARG_I(cmd, 1));
 127         return TRUE;
 128     }
 129     if (!strcmp(cmd->command, "/new_group") && !strcmp(cmd->arg_types, ""))
 130     {
 131         struct sampler_layer *l = sampler_layer_new(program->module, program, NULL);
 132         sampler_program_add_group(program, l);
 133         return cbox_execute_on(fb, NULL, "/uuid", "o", error, l);
 134     }
 135     return cbox_object_default_process_cmd(ct, fb, cmd, error);
 136
 137 }
 138
 139 struct sampler_program *sampler_program_new(struct sampler_module *m, int prog_no, const char *name, const char *sample_dir)
 140 {
 141     struct cbox_document *doc = CBOX_GET_DOCUMENT(&m->module);
 142     struct sampler_program *prg = malloc(sizeof(struct sampler_program));
 143     memset(prg, 0, sizeof(*prg));
 144     CBOX_OBJECT_HEADER_INIT(prg, sampler_program, doc);
 145     cbox_command_target_init(&prg->cmd_target, sampler_program_process_cmd, prg);
 146
 147     prg->module = m;
 148     prg->prog_no = prog_no;
 149     prg->name = g_strdup(name);
 150     prg->sample_dir = g_strdup(sample_dir);
 151     prg->source_file = NULL;
 152     prg->all_layers = NULL;
 153     prg->rll = NULL;
 154     prg->groups = NULL;
 155     prg->ctrl_init_list = NULL;
 156     prg->default_group = sampler_layer_new(m, prg, NULL);
 157     prg->deleting = FALSE;
 158     prg->in_use = 0;
 159     CBOX_OBJECT_REGISTER(prg);
 160     return prg;
 161 }
 162
 163 struct sampler_program *sampler_program_new_from_cfg(struct sampler_module *m, const char *cfg_section, const char *name, int pgm_id, GError **error)
 164 {
 165     int i;
 166
 167     char *name2 = NULL, *sfz_path = NULL, *spath = NULL;
 168     const char *sfz = NULL;
 169
 170     g_clear_error(error);
 171     if (!strncmp(cfg_section, "spgm:!", 6))
 172     {
 173         sfz = cfg_section + 6;
 174         name2 = strrchr(name, '/');
 175         if (name2)
 176             name2++;
 177     }
 178     else
 179     {
 180         if (!sfz && !cbox_config_has_section(cfg_section))
 181         {
 182             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);
 183             return FALSE;
 184         }
 185         name2 = cbox_config_get_string(cfg_section, "name");
 186
 187         sfz_path = cbox_config_get_string(cfg_section, "sfz_path");
 188         spath = cbox_config_get_string(cfg_section, "sample_path");
 189         sfz = cbox_config_get_string(cfg_section, "sfz");
 190     }
 191
 192     if (sfz && !sfz_path && !spath)
 193     {
 194         char *lastslash = strrchr(sfz, '/');
 195         if (lastslash && !sfz_path && !spath)
 196         {
 197             char *tmp = g_strndup(sfz, lastslash - sfz);
 198             sfz_path = cbox_config_permify(tmp);
 199             g_free(tmp);
 200             sfz = lastslash + 1;
 201         }
 202     }
 203
 204     struct sampler_program *prg = sampler_program_new(
 205         m,
 206         pgm_id != -1 ? pgm_id : cbox_config_get_int(cfg_section, "program", 0),
 207         name2 ? name2 : name,
 208         spath ? spath : (sfz_path ? sfz_path : "")
 209     );
 210
 211     if (sfz)
 212     {
 213         if (sfz_path)
 214             prg->source_file = g_build_filename(sfz_path, sfz, NULL);
 215         else
 216         {
 217             prg->source_file = g_strdup(sfz);
 218         }
 219
 220         if (sampler_module_load_program_sfz(m, prg, prg->source_file, FALSE, error))
 221             return prg;
 222         CBOX_DELETE(prg);
 223         return NULL;
 224     }
 225
 226     for (i = 0; ; i++)
 227     {
 228         char *where = NULL;
 229         gchar *s = g_strdup_printf("layer%d", 1 + i);
 230         const char *layer_section = cbox_config_get_string(cfg_section, s);
 231         g_free(s);
 232         if (!layer_section)
 233             break;
 234         where = g_strdup_printf("slayer:%s", layer_section);
 235
 236         prg->source_file = g_strdup_printf("config:%s", cfg_section);
 237         struct sampler_layer *l = sampler_layer_new_from_section(m, prg, where);
 238         if (!l)
 239             g_warning("Sample layer '%s' cannot be created - skipping", layer_section);
 240         else
 241         {
 242             sampler_layer_update(l);
 243             if (!l->data.eff_waveform)
 244                 g_warning("Sample layer '%s' does not have a waveform - skipping", layer_section);
 245             else
 246                 sampler_program_add_layer(prg, l);
 247         }
 248         g_free(where);
 249     }
 250     prg->all_layers = g_slist_reverse(prg->all_layers);
 251     sampler_program_update_layers(prg);
 252     return prg;
 253 }
 254
 255 void sampler_program_add_layer(struct sampler_program *prg, struct sampler_layer *l)
 256 {
 257     // Always call sampler_update_layer before sampler_program_add_layer.
 258     assert(l->runtime);
 259     prg->all_layers = g_slist_prepend(prg->all_layers, l);
 260 }
 261
 262 void sampler_program_delete_layer(struct sampler_program *prg, struct sampler_layer *l)
 263 {
 264     prg->all_layers = g_slist_remove(prg->all_layers, l);
 265 }
 266
 267
 268 void sampler_program_add_group(struct sampler_program *prg, struct sampler_layer *l)
 269 {
 270     prg->groups = g_slist_prepend(prg->groups, l);
 271 }
 272
 273 void sampler_program_add_controller_init(struct sampler_program *prg, uint8_t controller, uint8_t value)
 274 {
 275     union sampler_ctrlinit_union u;
 276     u.ptr = NULL;
 277     u.cinit.controller = controller;
 278     u.cinit.value = value;
 279     prg->ctrl_init_list = g_slist_append(prg->ctrl_init_list, u.ptr);
 280 }
 281
 282 void sampler_program_remove_controller_init(struct sampler_program *prg, uint8_t controller, int which)
 283 {
 284     for (GSList **p = &prg->ctrl_init_list; *p; )
 285     {
 286         const struct sampler_ctrlinit *cin = (const struct sampler_ctrlinit *)&(*p)->data;
 287         if (cin->controller != controller)
 288         {
 289             p = &((*p)->next);
 290             continue;
 291         }
 292         if (which > 0)
 293             which--;
 294         GSList *q = (GSList *)cbox_rt_swap_pointers(prg->module->module.rt, (void **)p, (*p)->next);
 295         g_slist_free1(q);
 296         if (which == 0)
 297             break;
 298     }
 299 }
 300
 301 void sampler_program_destroyfunc(struct cbox_objhdr *hdr_ptr)
 302 {
 303     struct sampler_program *prg = CBOX_H2O(hdr_ptr);
 304     sampler_unselect_program(prg->module, prg);
 305     if (prg->rll)
 306     {
 307         sampler_rll_destroy(prg->rll);
 308         prg->rll = NULL;
 309     }
 310     for (GSList *p = prg->all_layers; p; p = g_slist_next(p))
 311         CBOX_DELETE((struct sampler_layer *)p->data);
 312     for (GSList *p = prg->groups; p; p = g_slist_next(p))
 313         CBOX_DELETE((struct sampler_layer *)p->data);
 314     CBOX_DELETE(prg->default_group);
 315
 316     g_free(prg->name);
 317     g_free(prg->sample_dir);
 318     g_free(prg->source_file);
 319     g_slist_free(prg->all_layers);
 320     g_slist_free(prg->ctrl_init_list);
 321     free(prg);
 322 }
 323
 324 void sampler_program_update_layers(struct sampler_program *prg)
 325 {
 326     struct sampler_module *m = prg->module;
 327     struct sampler_rll *new_rll = sampler_rll_new_from_program(prg);
 328     struct sampler_rll *old_rll = cbox_rt_swap_pointers(m->module.rt, (void **)&prg->rll, new_rll);
 329     if (old_rll)
 330         sampler_rll_destroy(old_rll);
 331 }
 332
 333 /////////////////////////////////////////////////////////////////////////////////
 334
 335 struct sampler_rll *sampler_rll_new_from_program(struct sampler_program *prg)
 336 {
 337     struct sampler_rll *rll = malloc(sizeof(struct sampler_rll));
 338     rll->layers = NULL;
 339     rll->layers_release = NULL;
 340     rll->layers_oncc = NULL;
 341     for (int i = 0; i < 4; i++)
 342         rll->cc_trigger_bitmask[i] = 0;
 343
 344     for (GSList *p = prg->all_layers; p; p = g_slist_next(p))
 345     {
 346         struct sampler_layer *l = p->data;
 347         int cc = l->data.on_cc_number;
 348         if (cc != -1)
 349         {
 350             rll->layers_oncc = g_slist_prepend(rll->layers_oncc, l);
 351             rll->cc_trigger_bitmask[cc >> 5] |= 1 << (cc & 31);
 352         }
 353         else if (l->data.trigger == stm_release)
 354             rll->layers_release = g_slist_prepend(rll->layers_release, l);
 355         else
 356             rll->layers = g_slist_prepend(rll->layers, l);
 357     }
 358     return rll;
 359 }
 360
 361 void sampler_rll_destroy(struct sampler_rll *rll)
 362 {
 363     g_slist_free(rll->layers);
 364     g_slist_free(rll->layers_release);
 365     g_slist_free(rll->layers_oncc);
 366     free(rll);
 367 }