Mercurial > SDL_sound_CoreAudio
annotate decoders/timidity/instrum.c @ 577:af33b35a55c1
Minor cleanups. Ready to release.
| author | Eric Wing <ewing . public |-at-| gmail . com> |
|---|---|
| date | Sat, 23 Oct 2010 22:35:38 -0700 |
| parents | cbc2a4ffeeec |
| children |
| rev | line source |
|---|---|
| 199 | 1 /* |
| 2 | |
| 3 TiMidity -- Experimental MIDI to WAVE converter | |
| 4 Copyright (C) 1995 Tuukka Toivonen <toivonen@clinet.fi> | |
| 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; either version 2 of the License, or | |
| 9 (at your option) any later version. | |
| 10 | |
| 11 This program is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with this program; if not, write to the Free Software | |
| 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 19 | |
| 20 instrum.c | |
| 21 | |
| 22 Code to load and unload GUS-compatible instrument patches. | |
| 23 | |
| 24 */ | |
| 25 | |
| 26 #if HAVE_CONFIG_H | |
| 27 # include <config.h> | |
| 28 #endif | |
| 29 | |
| 30 #include <stdio.h> | |
| 31 #include <string.h> | |
| 32 #include <stdlib.h> | |
| 33 | |
| 34 #include "SDL_sound.h" | |
| 35 | |
| 36 #define __SDL_SOUND_INTERNAL__ | |
| 37 #include "SDL_sound_internal.h" | |
| 38 | |
| 39 #include "timidity.h" | |
| 40 #include "options.h" | |
| 41 #include "common.h" | |
| 42 #include "instrum.h" | |
|
455
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|
43 #include "instrum_dls.h" |
| 199 | 44 #include "resample.h" |
| 45 #include "tables.h" | |
| 46 | |
| 47 static void free_instrument(Instrument *ip) | |
| 48 { | |
| 49 Sample *sp; | |
| 50 int i; | |
| 51 if (!ip) return; | |
| 52 for (i=0; i<ip->samples; i++) | |
| 53 { | |
| 54 sp=&(ip->sample[i]); | |
| 55 free(sp->data); | |
| 56 } | |
| 57 free(ip->sample); | |
| 58 free(ip); | |
| 59 } | |
| 60 | |
| 61 static void free_bank(MidiSong *song, int dr, int b) | |
| 62 { | |
| 63 int i; | |
| 64 ToneBank *bank=((dr) ? song->drumset[b] : song->tonebank[b]); | |
| 65 for (i=0; i<128; i++) | |
| 66 if (bank->instrument[i]) | |
| 67 { | |
| 68 /* Not that this could ever happen, of course */ | |
| 69 if (bank->instrument[i] != MAGIC_LOAD_INSTRUMENT) | |
| 70 free_instrument(bank->instrument[i]); | |
| 71 bank->instrument[i]=0; | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 static Sint32 convert_envelope_rate(MidiSong *song, Uint8 rate) | |
| 76 { | |
| 77 Sint32 r; | |
| 78 | |
| 79 r = 3 - ((rate >> 6) & 0x3); | |
| 80 r *= 3; | |
| 81 r = (Sint32) (rate & 0x3f) << r; /* 6.9 fixed point */ | |
| 82 | |
| 83 /* 15.15 fixed point. */ | |
| 84 r = ((r * 44100) / song->rate) * song->control_ratio; | |
| 85 | |
| 86 #ifdef FAST_DECAY | |
| 87 return r << 10; | |
| 88 #else | |
| 89 return r << 9; | |
| 90 #endif | |
| 91 } | |
| 92 | |
| 93 static Sint32 convert_envelope_offset(Uint8 offset) | |
| 94 { | |
| 95 /* This is not too good... Can anyone tell me what these values mean? | |
| 96 Are they GUS-style "exponential" volumes? And what does that mean? */ | |
| 97 | |
| 98 /* 15.15 fixed point */ | |
| 99 return offset << (7+15); | |
| 100 } | |
| 101 | |
| 102 static Sint32 convert_tremolo_sweep(MidiSong *song, Uint8 sweep) | |
| 103 { | |
| 104 if (!sweep) | |
| 105 return 0; | |
| 106 | |
| 107 return | |
| 108 ((song->control_ratio * SWEEP_TUNING) << SWEEP_SHIFT) / | |
| 109 (song->rate * sweep); | |
| 110 } | |
| 111 | |
| 112 static Sint32 convert_vibrato_sweep(MidiSong *song, Uint8 sweep, | |
| 113 Sint32 vib_control_ratio) | |
| 114 { | |
| 115 if (!sweep) | |
| 116 return 0; | |
| 117 | |
| 118 return | |
| 119 (Sint32) (FSCALE((double) (vib_control_ratio) * SWEEP_TUNING, SWEEP_SHIFT) | |
| 120 / (double)(song->rate * sweep)); | |
| 121 | |
| 122 /* this was overflowing with seashore.pat | |
| 123 | |
| 124 ((vib_control_ratio * SWEEP_TUNING) << SWEEP_SHIFT) / | |
| 125 (song->rate * sweep); */ | |
| 126 } | |
| 127 | |
| 128 static Sint32 convert_tremolo_rate(MidiSong *song, Uint8 rate) | |
| 129 { | |
| 130 return | |
| 131 ((SINE_CYCLE_LENGTH * song->control_ratio * rate) << RATE_SHIFT) / | |
| 132 (TREMOLO_RATE_TUNING * song->rate); | |
| 133 } | |
| 134 | |
| 135 static Sint32 convert_vibrato_rate(MidiSong *song, Uint8 rate) | |
| 136 { | |
| 137 /* Return a suitable vibrato_control_ratio value */ | |
| 138 return | |
| 139 (VIBRATO_RATE_TUNING * song->rate) / | |
| 140 (rate * 2 * VIBRATO_SAMPLE_INCREMENTS); | |
| 141 } | |
| 142 | |
| 143 static void reverse_data(Sint16 *sp, Sint32 ls, Sint32 le) | |
| 144 { | |
| 145 Sint16 s, *ep=sp+le; | |
| 146 sp+=ls; | |
| 147 le-=ls; | |
| 148 le/=2; | |
| 149 while (le--) | |
| 150 { | |
| 151 s=*sp; | |
| 152 *sp++=*ep; | |
| 153 *ep--=s; | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 /* | |
| 158 If panning or note_to_use != -1, it will be used for all samples, | |
| 159 instead of the sample-specific values in the instrument file. | |
| 160 | |
| 161 For note_to_use, any value <0 or >127 will be forced to 0. | |
| 162 | |
| 163 For other parameters, 1 means yes, 0 means no, other values are | |
| 164 undefined. | |
| 165 | |
| 166 TODO: do reverse loops right */ | |
| 167 static Instrument *load_instrument(MidiSong *song, char *name, int percussion, | |
| 168 int panning, int amp, int note_to_use, | |
| 169 int strip_loop, int strip_envelope, | |
| 170 int strip_tail) | |
| 171 { | |
| 172 Instrument *ip; | |
| 173 Sample *sp; | |
| 174 SDL_RWops *rw; | |
| 175 char tmp[1024]; | |
| 176 int i,j,noluck=0; | |
| 177 static char *patch_ext[] = PATCH_EXT_LIST; | |
| 178 | |
| 179 if (!name) return 0; | |
| 180 | |
| 181 /* Open patch file */ | |
|
455
cbc2a4ffeeec
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hercules
parents:
447
diff
changeset
|
182 if ((rw=open_file(name)) == NULL) |
| 199 | 183 { |
| 184 noluck=1; | |
| 185 /* Try with various extensions */ | |
| 186 for (i=0; patch_ext[i]; i++) | |
| 187 { | |
| 188 if (strlen(name)+strlen(patch_ext[i])<1024) | |
| 189 { | |
| 190 strcpy(tmp, name); | |
| 191 strcat(tmp, patch_ext[i]); | |
|
455
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
192 if ((rw=open_file(tmp)) != NULL) |
| 199 | 193 { |
| 194 noluck=0; | |
| 195 break; | |
| 196 } | |
| 197 } | |
| 198 } | |
| 199 } | |
| 200 | |
| 201 if (noluck) | |
| 202 { | |
| 203 SNDDBG(("Instrument `%s' can't be found.\n", name)); | |
| 204 return 0; | |
| 205 } | |
| 206 | |
| 207 SNDDBG(("Loading instrument %s\n", tmp)); | |
| 208 | |
| 209 /* Read some headers and do cursory sanity checks. There are loads | |
| 210 of magic offsets. This could be rewritten... */ | |
| 211 | |
| 212 if ((239 != SDL_RWread(rw, tmp, 1, 239)) || | |
| 213 (memcmp(tmp, "GF1PATCH110\0ID#000002", 22) && | |
| 214 memcmp(tmp, "GF1PATCH100\0ID#000002", 22))) /* don't know what the | |
| 215 differences are */ | |
| 216 { | |
| 217 SNDDBG(("%s: not an instrument\n", name)); | |
| 218 return 0; | |
| 219 } | |
| 220 | |
| 221 if (tmp[82] != 1 && tmp[82] != 0) /* instruments. To some patch makers, | |
| 222 0 means 1 */ | |
| 223 { | |
| 224 SNDDBG(("Can't handle patches with %d instruments\n", tmp[82])); | |
| 225 return 0; | |
| 226 } | |
| 227 | |
| 228 if (tmp[151] != 1 && tmp[151] != 0) /* layers. What's a layer? */ | |
| 229 { | |
| 230 SNDDBG(("Can't handle instruments with %d layers\n", tmp[151])); | |
| 231 return 0; | |
| 232 } | |
| 233 | |
| 234 ip=safe_malloc(sizeof(Instrument)); | |
| 235 ip->samples = tmp[198]; | |
| 236 ip->sample = safe_malloc(sizeof(Sample) * ip->samples); | |
| 237 for (i=0; i<ip->samples; i++) | |
| 238 { | |
| 239 | |
| 240 Uint8 fractions; | |
| 241 Sint32 tmplong; | |
| 242 Uint16 tmpshort; | |
| 243 Uint8 tmpchar; | |
| 244 | |
| 245 #define READ_CHAR(thing) \ | |
| 246 if (1 != SDL_RWread(rw, &tmpchar, 1, 1)) goto fail; \ | |
| 247 thing = tmpchar; | |
| 248 #define READ_SHORT(thing) \ | |
| 249 if (1 != SDL_RWread(rw, &tmpshort, 2, 1)) goto fail; \ | |
| 250 thing = SDL_SwapLE16(tmpshort); | |
| 251 #define READ_LONG(thing) \ | |
| 252 if (1 != SDL_RWread(rw, &tmplong, 4, 1)) goto fail; \ | |
| 253 thing = SDL_SwapLE32(tmplong); | |
| 254 | |
| 255 SDL_RWseek(rw, 7, SEEK_CUR); /* Skip the wave name */ | |
| 256 | |
| 257 if (1 != SDL_RWread(rw, &fractions, 1, 1)) | |
| 258 { | |
| 259 fail: | |
| 260 SNDDBG(("Error reading sample %d\n", i)); | |
| 261 for (j=0; j<i; j++) | |
| 262 free(ip->sample[j].data); | |
| 263 free(ip->sample); | |
| 264 free(ip); | |
| 265 return 0; | |
| 266 } | |
| 267 | |
| 268 sp=&(ip->sample[i]); | |
| 269 | |
| 270 READ_LONG(sp->data_length); | |
| 271 READ_LONG(sp->loop_start); | |
| 272 READ_LONG(sp->loop_end); | |
| 273 READ_SHORT(sp->sample_rate); | |
| 274 READ_LONG(sp->low_freq); | |
| 275 READ_LONG(sp->high_freq); | |
| 276 READ_LONG(sp->root_freq); | |
|
455
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* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
277 sp->low_vel = 0; |
|
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
278 sp->high_vel = 127; |
| 199 | 279 SDL_RWseek(rw, 2, SEEK_CUR); /* Why have a "root frequency" and then |
| 280 * "tuning"?? */ | |
| 281 | |
| 282 READ_CHAR(tmp[0]); | |
| 283 | |
| 284 if (panning==-1) | |
| 285 sp->panning = (tmp[0] * 8 + 4) & 0x7f; | |
| 286 else | |
| 287 sp->panning=(Uint8)(panning & 0x7F); | |
| 288 | |
| 289 /* envelope, tremolo, and vibrato */ | |
| 290 if (18 != SDL_RWread(rw, tmp, 1, 18)) goto fail; | |
| 291 | |
| 292 if (!tmp[13] || !tmp[14]) | |
| 293 { | |
| 294 sp->tremolo_sweep_increment= | |
| 295 sp->tremolo_phase_increment=sp->tremolo_depth=0; | |
| 296 SNDDBG((" * no tremolo\n")); | |
| 297 } | |
| 298 else | |
| 299 { | |
| 300 sp->tremolo_sweep_increment=convert_tremolo_sweep(song, tmp[12]); | |
| 301 sp->tremolo_phase_increment=convert_tremolo_rate(song, tmp[13]); | |
| 302 sp->tremolo_depth=tmp[14]; | |
| 303 SNDDBG((" * tremolo: sweep %d, phase %d, depth %d\n", | |
| 304 sp->tremolo_sweep_increment, sp->tremolo_phase_increment, | |
| 305 sp->tremolo_depth)); | |
| 306 } | |
| 307 | |
| 308 if (!tmp[16] || !tmp[17]) | |
| 309 { | |
| 310 sp->vibrato_sweep_increment= | |
| 311 sp->vibrato_control_ratio=sp->vibrato_depth=0; | |
| 312 SNDDBG((" * no vibrato\n")); | |
| 313 } | |
| 314 else | |
| 315 { | |
| 316 sp->vibrato_control_ratio=convert_vibrato_rate(song, tmp[16]); | |
| 317 sp->vibrato_sweep_increment= | |
| 318 convert_vibrato_sweep(song, tmp[15], sp->vibrato_control_ratio); | |
| 319 sp->vibrato_depth=tmp[17]; | |
| 320 SNDDBG((" * vibrato: sweep %d, ctl %d, depth %d\n", | |
| 321 sp->vibrato_sweep_increment, sp->vibrato_control_ratio, | |
| 322 sp->vibrato_depth)); | |
| 323 | |
| 324 } | |
| 325 | |
| 326 READ_CHAR(sp->modes); | |
| 327 | |
| 328 SDL_RWseek(rw, 40, SEEK_CUR); /* skip the useless scale frequency, scale | |
| 329 factor (what's it mean?), and reserved | |
| 330 space */ | |
| 331 | |
| 332 /* Mark this as a fixed-pitch instrument if such a deed is desired. */ | |
| 333 if (note_to_use!=-1) | |
| 334 sp->note_to_use=(Uint8)(note_to_use); | |
| 335 else | |
| 336 sp->note_to_use=0; | |
| 337 | |
| 338 /* seashore.pat in the Midia patch set has no Sustain. I don't | |
| 339 understand why, and fixing it by adding the Sustain flag to | |
| 340 all looped patches probably breaks something else. We do it | |
| 341 anyway. */ | |
| 342 | |
| 343 if (sp->modes & MODES_LOOPING) | |
| 344 sp->modes |= MODES_SUSTAIN; | |
| 345 | |
| 346 /* Strip any loops and envelopes we're permitted to */ | |
| 347 if ((strip_loop==1) && | |
| 348 (sp->modes & (MODES_SUSTAIN | MODES_LOOPING | | |
| 349 MODES_PINGPONG | MODES_REVERSE))) | |
| 350 { | |
| 351 SNDDBG((" - Removing loop and/or sustain\n")); | |
| 352 sp->modes &=~(MODES_SUSTAIN | MODES_LOOPING | | |
| 353 MODES_PINGPONG | MODES_REVERSE); | |
| 354 } | |
| 355 | |
| 356 if (strip_envelope==1) | |
| 357 { | |
| 358 if (sp->modes & MODES_ENVELOPE) | |
| 359 SNDDBG((" - Removing envelope\n")); | |
| 360 sp->modes &= ~MODES_ENVELOPE; | |
| 361 } | |
| 362 else if (strip_envelope != 0) | |
| 363 { | |
| 364 /* Have to make a guess. */ | |
| 365 if (!(sp->modes & (MODES_LOOPING | MODES_PINGPONG | MODES_REVERSE))) | |
| 366 { | |
| 367 /* No loop? Then what's there to sustain? No envelope needed | |
| 368 either... */ | |
| 369 sp->modes &= ~(MODES_SUSTAIN|MODES_ENVELOPE); | |
| 370 SNDDBG((" - No loop, removing sustain and envelope\n")); | |
| 371 } | |
| 372 else if (!memcmp(tmp, "??????", 6) || tmp[11] >= 100) | |
| 373 { | |
| 374 /* Envelope rates all maxed out? Envelope end at a high "offset"? | |
| 375 That's a weird envelope. Take it out. */ | |
| 376 sp->modes &= ~MODES_ENVELOPE; | |
| 377 SNDDBG((" - Weirdness, removing envelope\n")); | |
| 378 } | |
| 379 else if (!(sp->modes & MODES_SUSTAIN)) | |
| 380 { | |
| 381 /* No sustain? Then no envelope. I don't know if this is | |
| 382 justified, but patches without sustain usually don't need the | |
| 383 envelope either... at least the Gravis ones. They're mostly | |
| 384 drums. I think. */ | |
| 385 sp->modes &= ~MODES_ENVELOPE; | |
| 386 SNDDBG((" - No sustain, removing envelope\n")); | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 for (j=0; j<6; j++) | |
| 391 { | |
| 392 sp->envelope_rate[j]= | |
| 393 convert_envelope_rate(song, tmp[j]); | |
| 394 sp->envelope_offset[j]= | |
| 395 convert_envelope_offset(tmp[6+j]); | |
| 396 } | |
| 397 | |
| 398 /* Then read the sample data */ | |
| 399 sp->data = safe_malloc(sp->data_length); | |
| 400 if (1 != SDL_RWread(rw, sp->data, sp->data_length, 1)) | |
| 401 goto fail; | |
| 402 | |
| 403 if (!(sp->modes & MODES_16BIT)) /* convert to 16-bit data */ | |
| 404 { | |
| 405 Sint32 i=sp->data_length; | |
| 406 Uint8 *cp=(Uint8 *)(sp->data); | |
| 407 Uint16 *tmp,*new; | |
| 408 tmp=new=safe_malloc(sp->data_length*2); | |
| 409 while (i--) | |
| 410 *tmp++ = (Uint16)(*cp++) << 8; | |
| 411 cp=(Uint8 *)(sp->data); | |
| 412 sp->data = (sample_t *)new; | |
| 413 free(cp); | |
| 414 sp->data_length *= 2; | |
| 415 sp->loop_start *= 2; | |
| 416 sp->loop_end *= 2; | |
| 417 } | |
| 418 #if SDL_BYTEORDER == SDL_BIG_ENDIAN | |
| 419 else | |
| 420 /* convert to machine byte order */ | |
| 421 { | |
| 422 Sint32 i=sp->data_length/2; | |
| 423 Sint16 *tmp=(Sint16 *)sp->data,s; | |
| 424 while (i--) | |
| 425 { | |
|
447
c98a34c00069
Fixed MIDI decoding on bigendian systems.
Ryan C. Gordon <icculus@icculus.org>
parents:
199
diff
changeset
|
426 s=SDL_SwapLE16(*tmp); |
| 199 | 427 *tmp++=s; |
| 428 } | |
| 429 } | |
| 430 #endif | |
| 431 | |
| 432 if (sp->modes & MODES_UNSIGNED) /* convert to signed data */ | |
| 433 { | |
| 434 Sint32 i=sp->data_length/2; | |
| 435 Sint16 *tmp=(Sint16 *)sp->data; | |
| 436 while (i--) | |
| 437 *tmp++ ^= 0x8000; | |
| 438 } | |
| 439 | |
| 440 /* Reverse reverse loops and pass them off as normal loops */ | |
| 441 if (sp->modes & MODES_REVERSE) | |
| 442 { | |
| 443 Sint32 t; | |
| 444 /* The GUS apparently plays reverse loops by reversing the | |
| 445 whole sample. We do the same because the GUS does not SUCK. */ | |
| 446 | |
| 447 SNDDBG(("Reverse loop in %s\n", name)); | |
| 448 reverse_data((Sint16 *)sp->data, 0, sp->data_length/2); | |
| 449 | |
| 450 t=sp->loop_start; | |
| 451 sp->loop_start=sp->data_length - sp->loop_end; | |
| 452 sp->loop_end=sp->data_length - t; | |
| 453 | |
| 454 sp->modes &= ~MODES_REVERSE; | |
| 455 sp->modes |= MODES_LOOPING; /* just in case */ | |
| 456 } | |
| 457 | |
| 458 #ifdef ADJUST_SAMPLE_VOLUMES | |
| 459 if (amp!=-1) | |
| 460 sp->volume=(float)((amp) / 100.0); | |
| 461 else | |
| 462 { | |
| 463 /* Try to determine a volume scaling factor for the sample. | |
| 464 This is a very crude adjustment, but things sound more | |
| 465 balanced with it. Still, this should be a runtime option. */ | |
| 466 Sint32 i=sp->data_length/2; | |
| 467 Sint16 maxamp=0,a; | |
| 468 Sint16 *tmp=(Sint16 *)sp->data; | |
| 469 while (i--) | |
| 470 { | |
| 471 a=*tmp++; | |
| 472 if (a<0) a=-a; | |
| 473 if (a>maxamp) | |
| 474 maxamp=a; | |
| 475 } | |
| 476 sp->volume=(float)(32768.0 / maxamp); | |
| 477 SNDDBG((" * volume comp: %f\n", sp->volume)); | |
| 478 } | |
| 479 #else | |
| 480 if (amp!=-1) | |
| 481 sp->volume=(double)(amp) / 100.0; | |
| 482 else | |
| 483 sp->volume=1.0; | |
| 484 #endif | |
| 485 | |
| 486 sp->data_length /= 2; /* These are in bytes. Convert into samples. */ | |
| 487 sp->loop_start /= 2; | |
| 488 sp->loop_end /= 2; | |
| 489 | |
| 490 /* Then fractional samples */ | |
| 491 sp->data_length <<= FRACTION_BITS; | |
| 492 sp->loop_start <<= FRACTION_BITS; | |
| 493 sp->loop_end <<= FRACTION_BITS; | |
| 494 | |
| 495 /* Adjust for fractional loop points. This is a guess. Does anyone | |
| 496 know what "fractions" really stands for? */ | |
| 497 sp->loop_start |= | |
| 498 (fractions & 0x0F) << (FRACTION_BITS-4); | |
| 499 sp->loop_end |= | |
| 500 ((fractions>>4) & 0x0F) << (FRACTION_BITS-4); | |
| 501 | |
| 502 /* If this instrument will always be played on the same note, | |
| 503 and it's not looped, we can resample it now. */ | |
| 504 if (sp->note_to_use && !(sp->modes & MODES_LOOPING)) | |
| 505 pre_resample(song, sp); | |
| 506 | |
| 507 if (strip_tail==1) | |
| 508 { | |
| 509 /* Let's not really, just say we did. */ | |
| 510 SNDDBG((" - Stripping tail\n")); | |
| 511 sp->data_length = sp->loop_end; | |
| 512 } | |
| 513 } | |
| 514 | |
| 515 SDL_RWclose(rw); | |
| 516 return ip; | |
| 517 } | |
| 518 | |
| 519 static int fill_bank(MidiSong *song, int dr, int b) | |
| 520 { | |
| 521 int i, errors=0; | |
| 522 ToneBank *bank=((dr) ? song->drumset[b] : song->tonebank[b]); | |
| 523 if (!bank) | |
| 524 { | |
| 525 SNDDBG(("Huh. Tried to load instruments in non-existent %s %d\n", | |
| 526 (dr) ? "drumset" : "tone bank", b)); | |
| 527 return 0; | |
| 528 } | |
| 529 for (i=0; i<128; i++) | |
| 530 { | |
| 531 if (bank->instrument[i]==MAGIC_LOAD_INSTRUMENT) | |
| 532 { | |
|
455
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
533 bank->instrument[i]=load_instrument_dls(song, dr, b, i); |
|
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
534 if (bank->instrument[i]) |
|
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
535 { |
|
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
536 continue; |
|
cbc2a4ffeeec
* Added support for loading DLS format instruments:
hercules
parents:
447
diff
changeset
|
537 } |
| 199 | 538 if (!(bank->tone[i].name)) |
| 539 { | |
| 540 SNDDBG(("No instrument mapped to %s %d, program %d%s\n", | |
| 541 (dr)? "drum set" : "tone bank", b, i, | |
| 542 (b!=0) ? "" : " - this instrument will not be heard")); | |
| 543 if (b!=0) | |
| 544 { | |
| 545 /* Mark the corresponding instrument in the default | |
| 546 bank / drumset for loading (if it isn't already) */ | |
| 547 if (!dr) | |
| 548 { | |
| 549 if (!(song->tonebank[0]->instrument[i])) | |
| 550 song->tonebank[0]->instrument[i] = | |
| 551 MAGIC_LOAD_INSTRUMENT; | |
| 552 } | |
| 553 else | |
| 554 { | |
| 555 if (!(song->drumset[0]->instrument[i])) | |
| 556 song->drumset[0]->instrument[i] = | |
| 557 MAGIC_LOAD_INSTRUMENT; | |
| 558 } | |
| 559 } | |
| 560 bank->instrument[i] = 0; | |
| 561 errors++; | |
| 562 } | |
| 563 else if (!(bank->instrument[i] = | |
| 564 load_instrument(song, | |
| 565 bank->tone[i].name, | |
| 566 (dr) ? 1 : 0, | |
| 567 bank->tone[i].pan, | |
| 568 bank->tone[i].amp, | |
| 569 (bank->tone[i].note!=-1) ? | |
| 570 bank->tone[i].note : | |
| 571 ((dr) ? i : -1), | |
| 572 (bank->tone[i].strip_loop!=-1) ? | |
| 573 bank->tone[i].strip_loop : | |
| 574 ((dr) ? 1 : -1), | |
| 575 (bank->tone[i].strip_envelope != -1) ? | |
| 576 bank->tone[i].strip_envelope : | |
| 577 ((dr) ? 1 : -1), | |
| 578 bank->tone[i].strip_tail ))) | |
| 579 { | |
| 580 SNDDBG(("Couldn't load instrument %s (%s %d, program %d)\n", | |
| 581 bank->tone[i].name, | |
| 582 (dr)? "drum set" : "tone bank", b, i)); | |
| 583 errors++; | |
| 584 } | |
| 585 } | |
| 586 } | |
| 587 return errors; | |
| 588 } | |
| 589 | |
| 590 int load_missing_instruments(MidiSong *song) | |
| 591 { | |
| 592 int i=128,errors=0; | |
| 593 while (i--) | |
| 594 { | |
| 595 if (song->tonebank[i]) | |
| 596 errors+=fill_bank(song,0,i); | |
| 597 if (song->drumset[i]) | |
| 598 errors+=fill_bank(song,1,i); | |
| 599 } | |
| 600 return errors; | |
| 601 } | |
| 602 | |
| 603 void free_instruments(MidiSong *song) | |
| 604 { | |
| 605 int i=128; | |
| 606 while(i--) | |
| 607 { | |
| 608 if (song->tonebank[i]) | |
| 609 free_bank(song, 0, i); | |
| 610 if (song->drumset[i]) | |
| 611 free_bank(song, 1, i); | |
| 612 } | |
| 613 } | |
| 614 | |
| 615 int set_default_instrument(MidiSong *song, char *name) | |
| 616 { | |
| 617 Instrument *ip; | |
| 618 if (!(ip=load_instrument(song, name, 0, -1, -1, -1, 0, 0, 0))) | |
| 619 return -1; | |
| 620 song->default_instrument = ip; | |
| 621 song->default_program = SPECIAL_PROGRAM; | |
| 622 return 0; | |
| 623 } |