Mercurial > SDL_sound_CoreAudio
annotate decoders/timidity/instrum_dls.c @ 458:69c8ba97f4bd
Fixed memory corruption when freeing DLS instruments
| author | hercules |
|---|---|
| date | Sun, 05 Oct 2003 23:33:11 +0000 |
| parents | cbc2a4ffeeec |
| children | 4d2febf33dc7 |
| rev | line source |
|---|---|
| 455 | 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.h | |
| 21 | |
| 22 */ | |
| 23 | |
| 24 #include <stdlib.h> | |
| 25 #include <string.h> | |
| 26 | |
| 27 #include "SDL.h" | |
| 28 #include "SDL_endian.h" | |
| 29 #include "SDL_rwops.h" | |
| 30 | |
| 31 #include "SDL_sound.h" | |
| 32 | |
| 33 #define __SDL_SOUND_INTERNAL__ | |
| 34 #include "SDL_sound_internal.h" | |
| 35 | |
| 36 #include "timidity.h" | |
| 37 #include "options.h" | |
| 38 #include "instrum.h" | |
| 39 #include "tables.h" | |
| 40 #include "common.h" | |
| 41 | |
| 42 /*-------------------------------------------------------------------------*/ | |
| 43 /* * * * * * * * * * * * * * * * * load_riff.h * * * * * * * * * * * * * * */ | |
| 44 /*-------------------------------------------------------------------------*/ | |
| 45 typedef struct _RIFF_Chunk { | |
| 46 Uint32 magic; | |
| 47 Uint32 length; | |
| 48 Uint32 subtype; | |
| 49 Uint8 *data; | |
| 50 struct _RIFF_Chunk *child; | |
| 51 struct _RIFF_Chunk *next; | |
| 52 } RIFF_Chunk; | |
| 53 | |
| 54 extern DECLSPEC RIFF_Chunk* SDLCALL LoadRIFF(SDL_RWops *src); | |
| 55 extern DECLSPEC void SDLCALL FreeRIFF(RIFF_Chunk *chunk); | |
| 56 extern DECLSPEC void SDLCALL PrintRIFF(RIFF_Chunk *chunk, int level); | |
| 57 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 58 | |
| 59 /*-------------------------------------------------------------------------*/ | |
| 60 /* * * * * * * * * * * * * * * * * load_riff.c * * * * * * * * * * * * * * */ | |
| 61 /*-------------------------------------------------------------------------*/ | |
| 62 #define RIFF 0x46464952 /* "RIFF" */ | |
| 63 #define LIST 0x5453494c /* "LIST" */ | |
| 64 | |
| 65 static RIFF_Chunk *AllocRIFFChunk() | |
| 66 { | |
| 67 RIFF_Chunk *chunk = (RIFF_Chunk *)malloc(sizeof(*chunk)); | |
| 68 if ( !chunk ) { | |
| 69 SDL_Error(SDL_ENOMEM); | |
| 70 return NULL; | |
| 71 } | |
| 72 memset(chunk, 0, sizeof(*chunk)); | |
| 73 return chunk; | |
| 74 } | |
| 75 | |
| 76 static void FreeRIFFChunk(RIFF_Chunk *chunk) | |
| 77 { | |
| 78 if ( chunk->child ) { | |
| 79 FreeRIFFChunk(chunk->child); | |
| 80 } | |
|
458
69c8ba97f4bd
Fixed memory corruption when freeing DLS instruments
hercules
parents:
455
diff
changeset
|
81 if ( chunk->next ) { |
|
69c8ba97f4bd
Fixed memory corruption when freeing DLS instruments
hercules
parents:
455
diff
changeset
|
82 FreeRIFFChunk(chunk->next); |
| 455 | 83 } |
| 84 free(chunk); | |
| 85 } | |
| 86 | |
| 87 static int ChunkHasSubType(Uint32 magic) | |
| 88 { | |
| 89 static Uint32 chunk_list[] = { | |
| 90 RIFF, LIST | |
| 91 }; | |
| 92 int i; | |
| 93 for ( i = 0; i < SDL_TABLESIZE(chunk_list); ++i ) { | |
| 94 if ( magic == chunk_list[i] ) { | |
| 95 return 1; | |
| 96 } | |
| 97 } | |
| 98 return 0; | |
| 99 } | |
| 100 | |
| 101 static int ChunkHasSubChunks(Uint32 magic) | |
| 102 { | |
| 103 static Uint32 chunk_list[] = { | |
| 104 RIFF, LIST | |
| 105 }; | |
| 106 int i; | |
| 107 for ( i = 0; i < SDL_TABLESIZE(chunk_list); ++i ) { | |
| 108 if ( magic == chunk_list[i] ) { | |
| 109 return 1; | |
| 110 } | |
| 111 } | |
| 112 return 0; | |
| 113 } | |
| 114 | |
| 115 static void LoadSubChunks(RIFF_Chunk *chunk, Uint8 *data, Uint32 left) | |
| 116 { | |
| 117 Uint8 *subchunkData; | |
| 118 Uint32 subchunkDataLen; | |
| 119 | |
| 120 while ( left > 8 ) { | |
| 121 RIFF_Chunk *child = AllocRIFFChunk(); | |
| 122 RIFF_Chunk *next, *prev = NULL; | |
| 123 for ( next = chunk->child; next; next = next->next ) { | |
| 124 prev = next; | |
| 125 } | |
| 126 if ( prev ) { | |
| 127 prev->next = child; | |
| 128 } else { | |
| 129 chunk->child = child; | |
| 130 } | |
| 131 | |
| 132 child->magic = (data[0] << 0) | | |
| 133 (data[1] << 8) | | |
| 134 (data[2] << 16) | | |
| 135 (data[3] << 24); | |
| 136 data += 4; | |
| 137 left -= 4; | |
| 138 child->length = (data[0] << 0) | | |
| 139 (data[1] << 8) | | |
| 140 (data[2] << 16) | | |
| 141 (data[3] << 24); | |
| 142 data += 4; | |
| 143 left -= 4; | |
| 144 child->data = data; | |
| 145 | |
| 146 if ( child->length > left ) { | |
| 147 child->length = left; | |
| 148 } | |
| 149 | |
| 150 subchunkData = child->data; | |
| 151 subchunkDataLen = child->length; | |
| 152 if ( ChunkHasSubType(child->magic) && subchunkDataLen >= 4 ) { | |
| 153 child->subtype = (subchunkData[0] << 0) | | |
| 154 (subchunkData[1] << 8) | | |
| 155 (subchunkData[2] << 16) | | |
| 156 (subchunkData[3] << 24); | |
| 157 subchunkData += 4; | |
| 158 subchunkDataLen -= 4; | |
| 159 } | |
| 160 if ( ChunkHasSubChunks(child->magic) ) { | |
| 161 LoadSubChunks(child, subchunkData, subchunkDataLen); | |
| 162 } | |
| 163 | |
| 164 data += child->length; | |
| 165 left -= child->length; | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 RIFF_Chunk *LoadRIFF(SDL_RWops *src) | |
| 170 { | |
| 171 RIFF_Chunk *chunk; | |
| 172 Uint8 *subchunkData; | |
| 173 Uint32 subchunkDataLen; | |
| 174 | |
| 175 /* Allocate the chunk structure */ | |
| 176 chunk = AllocRIFFChunk(); | |
| 177 | |
| 178 /* Make sure the file is in RIFF format */ | |
| 179 chunk->magic = SDL_ReadLE32(src); | |
| 180 chunk->length = SDL_ReadLE32(src); | |
| 181 if ( chunk->magic != RIFF ) { | |
| 182 SDL_SetError("Not a RIFF file"); | |
| 183 FreeRIFFChunk(chunk); | |
| 184 return NULL; | |
| 185 } | |
| 186 chunk->data = (Uint8 *)malloc(chunk->length); | |
| 187 if ( chunk->data == NULL ) { | |
| 188 SDL_Error(SDL_ENOMEM); | |
| 189 FreeRIFFChunk(chunk); | |
| 190 return NULL; | |
| 191 } | |
| 192 if ( SDL_RWread(src, chunk->data, chunk->length, 1) != 1 ) { | |
| 193 SDL_Error(SDL_EFREAD); | |
| 194 FreeRIFF(chunk); | |
| 195 return NULL; | |
| 196 } | |
| 197 subchunkData = chunk->data; | |
| 198 subchunkDataLen = chunk->length; | |
| 199 if ( ChunkHasSubType(chunk->magic) && subchunkDataLen >= 4 ) { | |
| 200 chunk->subtype = (subchunkData[0] << 0) | | |
| 201 (subchunkData[1] << 8) | | |
| 202 (subchunkData[2] << 16) | | |
| 203 (subchunkData[3] << 24); | |
| 204 subchunkData += 4; | |
| 205 subchunkDataLen -= 4; | |
| 206 } | |
| 207 if ( ChunkHasSubChunks(chunk->magic) ) { | |
| 208 LoadSubChunks(chunk, subchunkData, subchunkDataLen); | |
| 209 } | |
| 210 return chunk; | |
| 211 } | |
| 212 | |
| 213 void FreeRIFF(RIFF_Chunk *chunk) | |
| 214 { | |
| 215 free(chunk->data); | |
| 216 FreeRIFFChunk(chunk); | |
| 217 } | |
| 218 | |
| 219 void PrintRIFF(RIFF_Chunk *chunk, int level) | |
| 220 { | |
| 221 static char prefix[128]; | |
| 222 | |
| 223 if ( level == sizeof(prefix)-1 ) { | |
| 224 return; | |
| 225 } | |
| 226 if ( level > 0 ) { | |
| 227 prefix[(level-1)*2] = ' '; | |
| 228 prefix[(level-1)*2+1] = ' '; | |
| 229 } | |
| 230 prefix[level*2] = '\0'; | |
| 231 printf("%sChunk: %c%c%c%c (%d bytes)", prefix, | |
| 232 ((chunk->magic >> 0) & 0xFF), | |
| 233 ((chunk->magic >> 8) & 0xFF), | |
| 234 ((chunk->magic >> 16) & 0xFF), | |
| 235 ((chunk->magic >> 24) & 0xFF), chunk->length); | |
| 236 if ( chunk->subtype ) { | |
| 237 printf(" subtype: %c%c%c%c", | |
| 238 ((chunk->subtype >> 0) & 0xFF), | |
| 239 ((chunk->subtype >> 8) & 0xFF), | |
| 240 ((chunk->subtype >> 16) & 0xFF), | |
| 241 ((chunk->subtype >> 24) & 0xFF)); | |
| 242 } | |
| 243 printf("\n"); | |
| 244 if ( chunk->child ) { | |
| 245 printf("%s{\n", prefix); | |
| 246 PrintRIFF(chunk->child, level + 1); | |
| 247 printf("%s}\n", prefix); | |
| 248 } | |
| 249 if ( chunk->next ) { | |
| 250 PrintRIFF(chunk->next, level); | |
| 251 } | |
| 252 if ( level > 0 ) { | |
| 253 prefix[(level-1)*2] = '\0'; | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 #ifdef TEST_MAIN_RIFF | |
| 258 | |
| 259 main(int argc, char *argv[]) | |
| 260 { | |
| 261 int i; | |
| 262 for ( i = 1; i < argc; ++i ) { | |
| 263 RIFF_Chunk *chunk; | |
| 264 SDL_RWops *src = SDL_RWFromFile(argv[i], "rb"); | |
| 265 if ( !src ) { | |
| 266 fprintf(stderr, "Couldn't open %s: %s", argv[i], SDL_GetError()); | |
| 267 continue; | |
| 268 } | |
| 269 chunk = LoadRIFF(src); | |
| 270 if ( chunk ) { | |
| 271 PrintRIFF(chunk, 0); | |
| 272 FreeRIFF(chunk); | |
| 273 } else { | |
| 274 fprintf(stderr, "Couldn't load %s: %s\n", argv[i], SDL_GetError()); | |
| 275 } | |
| 276 SDL_RWclose(src); | |
| 277 } | |
| 278 } | |
| 279 | |
| 280 #endif // TEST_MAIN | |
| 281 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 282 | |
| 283 /*-------------------------------------------------------------------------*/ | |
| 284 /* * * * * * * * * * * * * * * * * load_dls.h * * * * * * * * * * * * * * */ | |
| 285 /*-------------------------------------------------------------------------*/ | |
| 286 /* This code is based on the DLS spec version 1.1, available at: | |
| 287 http://www.midi.org/about-midi/dls/dlsspec.shtml | |
| 288 */ | |
| 289 | |
| 290 /* Some typedefs so the public dls headers don't need to be modified */ | |
| 291 #define FAR | |
| 292 typedef Uint8 BYTE; | |
| 293 typedef Sint16 SHORT; | |
| 294 typedef Uint16 USHORT; | |
| 295 typedef Uint16 WORD; | |
| 296 typedef Sint32 LONG; | |
| 297 typedef Uint32 ULONG; | |
| 298 typedef Uint32 DWORD; | |
| 299 #define mmioFOURCC(A, B, C, D) \ | |
| 300 (((A) << 0) | ((B) << 8) | ((C) << 16) | ((D) << 24)) | |
| 301 #define DEFINE_GUID(A, B, C, E, F, G, H, I, J, K, L, M) | |
| 302 | |
| 303 #include "dls1.h" | |
| 304 #include "dls2.h" | |
| 305 | |
| 306 typedef struct _WaveFMT { | |
| 307 WORD wFormatTag; | |
| 308 WORD wChannels; | |
| 309 DWORD dwSamplesPerSec; | |
| 310 DWORD dwAvgBytesPerSec; | |
| 311 WORD wBlockAlign; | |
| 312 WORD wBitsPerSample; | |
| 313 } WaveFMT; | |
| 314 | |
| 315 typedef struct _DLS_Wave { | |
| 316 WaveFMT *format; | |
| 317 Uint8 *data; | |
| 318 Uint32 length; | |
| 319 WSMPL *wsmp; | |
| 320 WLOOP *wsmp_loop; | |
| 321 } DLS_Wave; | |
| 322 | |
| 323 typedef struct _DLS_Region { | |
| 324 RGNHEADER *header; | |
| 325 WAVELINK *wlnk; | |
| 326 WSMPL *wsmp; | |
| 327 WLOOP *wsmp_loop; | |
| 328 CONNECTIONLIST *art; | |
| 329 CONNECTION *artList; | |
| 330 } DLS_Region; | |
| 331 | |
| 332 typedef struct _DLS_Instrument { | |
| 333 const char *name; | |
| 334 INSTHEADER *header; | |
| 335 DLS_Region *regions; | |
| 336 CONNECTIONLIST *art; | |
| 337 CONNECTION *artList; | |
| 338 } DLS_Instrument; | |
| 339 | |
| 340 typedef struct _DLS_Data { | |
| 341 struct _RIFF_Chunk *chunk; | |
| 342 | |
| 343 Uint32 cInstruments; | |
| 344 DLS_Instrument *instruments; | |
| 345 | |
| 346 POOLTABLE *ptbl; | |
| 347 POOLCUE *ptblList; | |
| 348 DLS_Wave *waveList; | |
| 349 | |
| 350 const char *name; | |
| 351 const char *artist; | |
| 352 const char *copyright; | |
| 353 const char *comments; | |
| 354 } DLS_Data; | |
| 355 | |
| 356 extern DECLSPEC DLS_Data* SDLCALL LoadDLS(SDL_RWops *src); | |
| 357 extern DECLSPEC void SDLCALL FreeDLS(DLS_Data *chunk); | |
| 358 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 359 | |
| 360 /*-------------------------------------------------------------------------*/ | |
| 361 /* * * * * * * * * * * * * * * * * load_dls.c * * * * * * * * * * * * * * */ | |
| 362 /*-------------------------------------------------------------------------*/ | |
| 363 | |
| 364 #define FOURCC_LIST 0x5453494c /* "LIST" */ | |
| 365 #define FOURCC_FMT 0x20746D66 /* "fmt " */ | |
| 366 #define FOURCC_DATA 0x61746164 /* "data" */ | |
| 367 #define FOURCC_INFO mmioFOURCC('I','N','F','O') | |
| 368 #define FOURCC_IARL mmioFOURCC('I','A','R','L') | |
| 369 #define FOURCC_IART mmioFOURCC('I','A','R','T') | |
| 370 #define FOURCC_ICMS mmioFOURCC('I','C','M','S') | |
| 371 #define FOURCC_ICMT mmioFOURCC('I','C','M','T') | |
| 372 #define FOURCC_ICOP mmioFOURCC('I','C','O','P') | |
| 373 #define FOURCC_ICRD mmioFOURCC('I','C','R','D') | |
| 374 #define FOURCC_IENG mmioFOURCC('I','E','N','G') | |
| 375 #define FOURCC_IGNR mmioFOURCC('I','G','N','R') | |
| 376 #define FOURCC_IKEY mmioFOURCC('I','K','E','Y') | |
| 377 #define FOURCC_IMED mmioFOURCC('I','M','E','D') | |
| 378 #define FOURCC_INAM mmioFOURCC('I','N','A','M') | |
| 379 #define FOURCC_IPRD mmioFOURCC('I','P','R','D') | |
| 380 #define FOURCC_ISBJ mmioFOURCC('I','S','B','J') | |
| 381 #define FOURCC_ISFT mmioFOURCC('I','S','F','T') | |
| 382 #define FOURCC_ISRC mmioFOURCC('I','S','R','C') | |
| 383 #define FOURCC_ISRF mmioFOURCC('I','S','R','F') | |
| 384 #define FOURCC_ITCH mmioFOURCC('I','T','C','H') | |
| 385 | |
| 386 | |
| 387 static void FreeRegions(DLS_Instrument *instrument) | |
| 388 { | |
| 389 if ( instrument->regions ) { | |
| 390 free(instrument->regions); | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 static void AllocRegions(DLS_Instrument *instrument) | |
| 395 { | |
| 396 int datalen = (instrument->header->cRegions * sizeof(DLS_Region)); | |
| 397 FreeRegions(instrument); | |
| 398 instrument->regions = (DLS_Region *)malloc(datalen); | |
| 399 if ( instrument->regions ) { | |
| 400 memset(instrument->regions, 0, datalen); | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 static void FreeInstruments(DLS_Data *data) | |
| 405 { | |
| 406 if ( data->instruments ) { | |
| 407 Uint32 i; | |
| 408 for ( i = 0; i < data->cInstruments; ++i ) { | |
| 409 FreeRegions(&data->instruments[i]); | |
| 410 } | |
| 411 free(data->instruments); | |
| 412 } | |
| 413 } | |
| 414 | |
| 415 static void AllocInstruments(DLS_Data *data) | |
| 416 { | |
| 417 int datalen = (data->cInstruments * sizeof(DLS_Instrument)); | |
| 418 FreeInstruments(data); | |
| 419 data->instruments = (DLS_Instrument *)malloc(datalen); | |
| 420 if ( data->instruments ) { | |
| 421 memset(data->instruments, 0, datalen); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 static void FreeWaveList(DLS_Data *data) | |
| 426 { | |
| 427 if ( data->waveList ) { | |
| 428 free(data->waveList); | |
| 429 } | |
| 430 } | |
| 431 | |
| 432 static void AllocWaveList(DLS_Data *data) | |
| 433 { | |
| 434 int datalen = (data->ptbl->cCues * sizeof(DLS_Wave)); | |
| 435 FreeWaveList(data); | |
| 436 data->waveList = (DLS_Wave *)malloc(datalen); | |
| 437 if ( data->waveList ) { | |
| 438 memset(data->waveList, 0, datalen); | |
| 439 } | |
| 440 } | |
| 441 | |
| 442 static void Parse_colh(DLS_Data *data, RIFF_Chunk *chunk) | |
| 443 { | |
| 444 data->cInstruments = SDL_SwapLE32(*(Uint32 *)chunk->data); | |
| 445 AllocInstruments(data); | |
| 446 } | |
| 447 | |
| 448 static void Parse_insh(DLS_Data *data, RIFF_Chunk *chunk, DLS_Instrument *instrument) | |
| 449 { | |
| 450 INSTHEADER *header = (INSTHEADER *)chunk->data; | |
| 451 header->cRegions = SDL_SwapLE32(header->cRegions); | |
| 452 header->Locale.ulBank = SDL_SwapLE32(header->Locale.ulBank); | |
| 453 header->Locale.ulInstrument = SDL_SwapLE32(header->Locale.ulInstrument); | |
| 454 instrument->header = header; | |
| 455 AllocRegions(instrument); | |
| 456 } | |
| 457 | |
| 458 static void Parse_rgnh(DLS_Data *data, RIFF_Chunk *chunk, DLS_Region *region) | |
| 459 { | |
| 460 RGNHEADER *header = (RGNHEADER *)chunk->data; | |
| 461 header->RangeKey.usLow = SDL_SwapLE16(header->RangeKey.usLow); | |
| 462 header->RangeKey.usHigh = SDL_SwapLE16(header->RangeKey.usHigh); | |
| 463 header->RangeVelocity.usLow = SDL_SwapLE16(header->RangeVelocity.usLow); | |
| 464 header->RangeVelocity.usHigh = SDL_SwapLE16(header->RangeVelocity.usHigh); | |
| 465 header->fusOptions = SDL_SwapLE16(header->fusOptions); | |
| 466 header->usKeyGroup = SDL_SwapLE16(header->usKeyGroup); | |
| 467 region->header = header; | |
| 468 } | |
| 469 | |
| 470 static void Parse_wlnk(DLS_Data *data, RIFF_Chunk *chunk, DLS_Region *region) | |
| 471 { | |
| 472 WAVELINK *wlnk = (WAVELINK *)chunk->data; | |
| 473 wlnk->fusOptions = SDL_SwapLE16(wlnk->fusOptions); | |
| 474 wlnk->usPhaseGroup = SDL_SwapLE16(wlnk->usPhaseGroup); | |
| 475 wlnk->ulChannel = SDL_SwapLE16(wlnk->ulChannel); | |
| 476 wlnk->ulTableIndex = SDL_SwapLE16(wlnk->ulTableIndex); | |
| 477 region->wlnk = wlnk; | |
| 478 } | |
| 479 | |
| 480 static void Parse_wsmp(DLS_Data *data, RIFF_Chunk *chunk, WSMPL **wsmp_ptr, WLOOP **wsmp_loop_ptr) | |
| 481 { | |
| 482 Uint32 i; | |
| 483 WSMPL *wsmp = (WSMPL *)chunk->data; | |
| 484 WLOOP *loop; | |
| 485 wsmp->cbSize = SDL_SwapLE32(wsmp->cbSize); | |
| 486 wsmp->usUnityNote = SDL_SwapLE16(wsmp->usUnityNote); | |
| 487 wsmp->sFineTune = SDL_SwapLE16(wsmp->sFineTune); | |
| 488 wsmp->lAttenuation = SDL_SwapLE32(wsmp->lAttenuation); | |
| 489 wsmp->fulOptions = SDL_SwapLE32(wsmp->fulOptions); | |
| 490 wsmp->cSampleLoops = SDL_SwapLE32(wsmp->cSampleLoops); | |
| 491 loop = (WLOOP *)((Uint8 *)chunk->data + wsmp->cbSize); | |
| 492 *wsmp_ptr = wsmp; | |
| 493 *wsmp_loop_ptr = loop; | |
| 494 for ( i = 0; i < wsmp->cSampleLoops; ++i ) { | |
| 495 loop->cbSize = SDL_SwapLE32(loop->cbSize); | |
| 496 loop->ulType = SDL_SwapLE32(loop->ulType); | |
| 497 loop->ulStart = SDL_SwapLE32(loop->ulStart); | |
| 498 loop->ulLength = SDL_SwapLE32(loop->ulLength); | |
| 499 ++loop; | |
| 500 } | |
| 501 } | |
| 502 | |
| 503 static void Parse_art(DLS_Data *data, RIFF_Chunk *chunk, CONNECTIONLIST **art_ptr, CONNECTION **artList_ptr) | |
| 504 { | |
| 505 Uint32 i; | |
| 506 CONNECTIONLIST *art = (CONNECTIONLIST *)chunk->data; | |
| 507 CONNECTION *artList; | |
| 508 art->cbSize = SDL_SwapLE32(art->cbSize); | |
| 509 art->cConnections = SDL_SwapLE32(art->cConnections); | |
| 510 artList = (CONNECTION *)((Uint8 *)chunk->data + art->cbSize); | |
| 511 *art_ptr = art; | |
| 512 *artList_ptr = artList; | |
| 513 for ( i = 0; i < art->cConnections; ++i ) { | |
| 514 artList->usSource = SDL_SwapLE16(artList->usSource); | |
| 515 artList->usControl = SDL_SwapLE16(artList->usControl); | |
| 516 artList->usDestination = SDL_SwapLE16(artList->usDestination); | |
| 517 artList->usTransform = SDL_SwapLE16(artList->usTransform); | |
| 518 artList->lScale = SDL_SwapLE32(artList->lScale); | |
| 519 ++artList; | |
| 520 } | |
| 521 } | |
| 522 | |
| 523 static void Parse_lart(DLS_Data *data, RIFF_Chunk *chunk, CONNECTIONLIST **conn_ptr, CONNECTION **connList_ptr) | |
| 524 { | |
| 525 /* FIXME: This only supports one set of connections */ | |
| 526 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 527 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 528 switch(magic) { | |
| 529 case FOURCC_ART1: | |
| 530 case FOURCC_ART2: | |
| 531 Parse_art(data, chunk, conn_ptr, connList_ptr); | |
| 532 return; | |
| 533 } | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 static void Parse_rgn(DLS_Data *data, RIFF_Chunk *chunk, DLS_Region *region) | |
| 538 { | |
| 539 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 540 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 541 switch(magic) { | |
| 542 case FOURCC_RGNH: | |
| 543 Parse_rgnh(data, chunk, region); | |
| 544 break; | |
| 545 case FOURCC_WLNK: | |
| 546 Parse_wlnk(data, chunk, region); | |
| 547 break; | |
| 548 case FOURCC_WSMP: | |
| 549 Parse_wsmp(data, chunk, ®ion->wsmp, ®ion->wsmp_loop); | |
| 550 break; | |
| 551 case FOURCC_LART: | |
| 552 case FOURCC_LAR2: | |
| 553 Parse_lart(data, chunk, ®ion->art, ®ion->artList); | |
| 554 break; | |
| 555 } | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 static void Parse_lrgn(DLS_Data *data, RIFF_Chunk *chunk, DLS_Instrument *instrument) | |
| 560 { | |
| 561 Uint32 region = 0; | |
| 562 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 563 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 564 switch(magic) { | |
| 565 case FOURCC_RGN: | |
| 566 case FOURCC_RGN2: | |
| 567 if ( region < instrument->header->cRegions ) { | |
| 568 Parse_rgn(data, chunk, &instrument->regions[region++]); | |
| 569 } | |
| 570 break; | |
| 571 } | |
| 572 } | |
| 573 } | |
| 574 | |
| 575 static void Parse_INFO_INS(DLS_Data *data, RIFF_Chunk *chunk, DLS_Instrument *instrument) | |
| 576 { | |
| 577 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 578 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 579 switch(magic) { | |
| 580 case FOURCC_INAM: /* Name */ | |
| 581 instrument->name = chunk->data; | |
| 582 break; | |
| 583 } | |
| 584 } | |
| 585 } | |
| 586 | |
| 587 static void Parse_ins(DLS_Data *data, RIFF_Chunk *chunk, DLS_Instrument *instrument) | |
| 588 { | |
| 589 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 590 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 591 switch(magic) { | |
| 592 case FOURCC_INSH: | |
| 593 Parse_insh(data, chunk, instrument); | |
| 594 break; | |
| 595 case FOURCC_LRGN: | |
| 596 Parse_lrgn(data, chunk, instrument); | |
| 597 break; | |
| 598 case FOURCC_LART: | |
| 599 case FOURCC_LAR2: | |
| 600 Parse_lart(data, chunk, &instrument->art, &instrument->artList); | |
| 601 break; | |
| 602 case FOURCC_INFO: | |
| 603 Parse_INFO_INS(data, chunk, instrument); | |
| 604 break; | |
| 605 } | |
| 606 } | |
| 607 } | |
| 608 | |
| 609 static void Parse_lins(DLS_Data *data, RIFF_Chunk *chunk) | |
| 610 { | |
| 611 Uint32 instrument = 0; | |
| 612 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 613 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 614 switch(magic) { | |
| 615 case FOURCC_INS: | |
| 616 if ( instrument < data->cInstruments ) { | |
| 617 Parse_ins(data, chunk, &data->instruments[instrument++]); | |
| 618 } | |
| 619 break; | |
| 620 } | |
| 621 } | |
| 622 } | |
| 623 | |
| 624 static void Parse_ptbl(DLS_Data *data, RIFF_Chunk *chunk) | |
| 625 { | |
| 626 Uint32 i; | |
| 627 POOLTABLE *ptbl = (POOLTABLE *)chunk->data; | |
| 628 ptbl->cbSize = SDL_SwapLE32(ptbl->cbSize); | |
| 629 ptbl->cCues = SDL_SwapLE32(ptbl->cCues); | |
| 630 data->ptbl = ptbl; | |
| 631 data->ptblList = (POOLCUE *)((Uint8 *)chunk->data + ptbl->cbSize); | |
| 632 for ( i = 0; i < ptbl->cCues; ++i ) { | |
| 633 data->ptblList[i].ulOffset = SDL_SwapLE32(data->ptblList[i].ulOffset); | |
| 634 } | |
| 635 AllocWaveList(data); | |
| 636 } | |
| 637 | |
| 638 static void Parse_fmt(DLS_Data *data, RIFF_Chunk *chunk, DLS_Wave *wave) | |
| 639 { | |
| 640 WaveFMT *fmt = (WaveFMT *)chunk->data; | |
| 641 fmt->wFormatTag = SDL_SwapLE16(fmt->wFormatTag); | |
| 642 fmt->wChannels = SDL_SwapLE16(fmt->wChannels); | |
| 643 fmt->dwSamplesPerSec = SDL_SwapLE32(fmt->dwSamplesPerSec); | |
| 644 fmt->dwAvgBytesPerSec = SDL_SwapLE32(fmt->dwAvgBytesPerSec); | |
| 645 fmt->wBlockAlign = SDL_SwapLE16(fmt->wBlockAlign); | |
| 646 fmt->wBitsPerSample = SDL_SwapLE16(fmt->wBitsPerSample); | |
| 647 wave->format = fmt; | |
| 648 } | |
| 649 | |
| 650 static void Parse_data(DLS_Data *data, RIFF_Chunk *chunk, DLS_Wave *wave) | |
| 651 { | |
| 652 wave->data = chunk->data; | |
| 653 wave->length = chunk->length; | |
| 654 } | |
| 655 | |
| 656 static void Parse_wave(DLS_Data *data, RIFF_Chunk *chunk, DLS_Wave *wave) | |
| 657 { | |
| 658 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 659 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 660 switch(magic) { | |
| 661 case FOURCC_FMT: | |
| 662 Parse_fmt(data, chunk, wave); | |
| 663 break; | |
| 664 case FOURCC_DATA: | |
| 665 Parse_data(data, chunk, wave); | |
| 666 break; | |
| 667 case FOURCC_WSMP: | |
| 668 Parse_wsmp(data, chunk, &wave->wsmp, &wave->wsmp_loop); | |
| 669 break; | |
| 670 } | |
| 671 } | |
| 672 } | |
| 673 | |
| 674 static void Parse_wvpl(DLS_Data *data, RIFF_Chunk *chunk) | |
| 675 { | |
| 676 Uint32 wave = 0; | |
| 677 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 678 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 679 switch(magic) { | |
| 680 case FOURCC_wave: | |
| 681 if ( wave < data->ptbl->cCues ) { | |
| 682 Parse_wave(data, chunk, &data->waveList[wave++]); | |
| 683 } | |
| 684 break; | |
| 685 } | |
| 686 } | |
| 687 } | |
| 688 | |
| 689 static void Parse_INFO_DLS(DLS_Data *data, RIFF_Chunk *chunk) | |
| 690 { | |
| 691 for ( chunk = chunk->child; chunk; chunk = chunk->next ) { | |
| 692 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 693 switch(magic) { | |
| 694 case FOURCC_IARL: /* Archival Location */ | |
| 695 break; | |
| 696 case FOURCC_IART: /* Artist */ | |
| 697 data->artist = chunk->data; | |
| 698 break; | |
| 699 case FOURCC_ICMS: /* Commisioned */ | |
| 700 break; | |
| 701 case FOURCC_ICMT: /* Comments */ | |
| 702 data->comments = chunk->data; | |
| 703 break; | |
| 704 case FOURCC_ICOP: /* Copyright */ | |
| 705 data->copyright = chunk->data; | |
| 706 break; | |
| 707 case FOURCC_ICRD: /* Creation Date */ | |
| 708 break; | |
| 709 case FOURCC_IENG: /* Engineer */ | |
| 710 break; | |
| 711 case FOURCC_IGNR: /* Genre */ | |
| 712 break; | |
| 713 case FOURCC_IKEY: /* Keywords */ | |
| 714 break; | |
| 715 case FOURCC_IMED: /* Medium */ | |
| 716 break; | |
| 717 case FOURCC_INAM: /* Name */ | |
| 718 data->name = chunk->data; | |
| 719 break; | |
| 720 case FOURCC_IPRD: /* Product */ | |
| 721 break; | |
| 722 case FOURCC_ISBJ: /* Subject */ | |
| 723 break; | |
| 724 case FOURCC_ISFT: /* Software */ | |
| 725 break; | |
| 726 case FOURCC_ISRC: /* Source */ | |
| 727 break; | |
| 728 case FOURCC_ISRF: /* Source Form */ | |
| 729 break; | |
| 730 case FOURCC_ITCH: /* Technician */ | |
| 731 break; | |
| 732 } | |
| 733 } | |
| 734 } | |
| 735 | |
| 736 DLS_Data *LoadDLS(SDL_RWops *src) | |
| 737 { | |
| 738 RIFF_Chunk *chunk; | |
| 739 DLS_Data *data = (DLS_Data *)malloc(sizeof(*data)); | |
| 740 if ( !data ) { | |
| 741 SDL_Error(SDL_ENOMEM); | |
| 742 return NULL; | |
| 743 } | |
| 744 memset(data, 0, sizeof(*data)); | |
| 745 | |
| 746 data->chunk = LoadRIFF(src); | |
| 747 if ( !data->chunk ) { | |
| 748 FreeDLS(data); | |
| 749 return NULL; | |
| 750 } | |
| 751 | |
| 752 for ( chunk = data->chunk->child; chunk; chunk = chunk->next ) { | |
| 753 Uint32 magic = (chunk->magic == FOURCC_LIST) ? chunk->subtype : chunk->magic; | |
| 754 switch(magic) { | |
| 755 case FOURCC_COLH: | |
| 756 Parse_colh(data, chunk); | |
| 757 break; | |
| 758 case FOURCC_LINS: | |
| 759 Parse_lins(data, chunk); | |
| 760 break; | |
| 761 case FOURCC_PTBL: | |
| 762 Parse_ptbl(data, chunk); | |
| 763 break; | |
| 764 case FOURCC_WVPL: | |
| 765 Parse_wvpl(data, chunk); | |
| 766 break; | |
| 767 case FOURCC_INFO: | |
| 768 Parse_INFO_DLS(data, chunk); | |
| 769 break; | |
| 770 } | |
| 771 } | |
| 772 return data; | |
| 773 } | |
| 774 | |
| 775 void FreeDLS(DLS_Data *data) | |
| 776 { | |
| 777 if ( data->chunk ) { | |
| 778 FreeRIFF(data->chunk); | |
| 779 } | |
| 780 FreeInstruments(data); | |
| 781 FreeWaveList(data); | |
| 782 free(data); | |
| 783 } | |
| 784 | |
| 785 static const char *SourceToString(USHORT usSource) | |
| 786 { | |
| 787 switch(usSource) { | |
| 788 case CONN_SRC_NONE: | |
| 789 return "NONE"; | |
| 790 case CONN_SRC_LFO: | |
| 791 return "LFO"; | |
| 792 case CONN_SRC_KEYONVELOCITY: | |
| 793 return "KEYONVELOCITY"; | |
| 794 case CONN_SRC_KEYNUMBER: | |
| 795 return "KEYNUMBER"; | |
| 796 case CONN_SRC_EG1: | |
| 797 return "EG1"; | |
| 798 case CONN_SRC_EG2: | |
| 799 return "EG2"; | |
| 800 case CONN_SRC_PITCHWHEEL: | |
| 801 return "PITCHWHEEL"; | |
| 802 case CONN_SRC_CC1: | |
| 803 return "CC1"; | |
| 804 case CONN_SRC_CC7: | |
| 805 return "CC7"; | |
| 806 case CONN_SRC_CC10: | |
| 807 return "CC10"; | |
| 808 case CONN_SRC_CC11: | |
| 809 return "CC11"; | |
| 810 case CONN_SRC_POLYPRESSURE: | |
| 811 return "POLYPRESSURE"; | |
| 812 case CONN_SRC_CHANNELPRESSURE: | |
| 813 return "CHANNELPRESSURE"; | |
| 814 case CONN_SRC_VIBRATO: | |
| 815 return "VIBRATO"; | |
| 816 case CONN_SRC_MONOPRESSURE: | |
| 817 return "MONOPRESSURE"; | |
| 818 case CONN_SRC_CC91: | |
| 819 return "CC91"; | |
| 820 case CONN_SRC_CC93: | |
| 821 return "CC93"; | |
| 822 default: | |
| 823 return "UNKNOWN"; | |
| 824 } | |
| 825 } | |
| 826 | |
| 827 static const char *TransformToString(USHORT usTransform) | |
| 828 { | |
| 829 switch (usTransform) { | |
| 830 case CONN_TRN_NONE: | |
| 831 return "NONE"; | |
| 832 case CONN_TRN_CONCAVE: | |
| 833 return "CONCAVE"; | |
| 834 case CONN_TRN_CONVEX: | |
| 835 return "CONVEX"; | |
| 836 case CONN_TRN_SWITCH: | |
| 837 return "SWITCH"; | |
| 838 default: | |
| 839 return "UNKNOWN"; | |
| 840 } | |
| 841 } | |
| 842 | |
| 843 static const char *DestinationToString(USHORT usDestination) | |
| 844 { | |
| 845 switch (usDestination) { | |
| 846 case CONN_DST_NONE: | |
| 847 return "NONE"; | |
| 848 case CONN_DST_ATTENUATION: | |
| 849 return "ATTENUATION"; | |
| 850 case CONN_DST_PITCH: | |
| 851 return "PITCH"; | |
| 852 case CONN_DST_PAN: | |
| 853 return "PAN"; | |
| 854 case CONN_DST_LFO_FREQUENCY: | |
| 855 return "LFO_FREQUENCY"; | |
| 856 case CONN_DST_LFO_STARTDELAY: | |
| 857 return "LFO_STARTDELAY"; | |
| 858 case CONN_DST_EG1_ATTACKTIME: | |
| 859 return "EG1_ATTACKTIME"; | |
| 860 case CONN_DST_EG1_DECAYTIME: | |
| 861 return "EG1_DECAYTIME"; | |
| 862 case CONN_DST_EG1_RELEASETIME: | |
| 863 return "EG1_RELEASETIME"; | |
| 864 case CONN_DST_EG1_SUSTAINLEVEL: | |
| 865 return "EG1_SUSTAINLEVEL"; | |
| 866 case CONN_DST_EG2_ATTACKTIME: | |
| 867 return "EG2_ATTACKTIME"; | |
| 868 case CONN_DST_EG2_DECAYTIME: | |
| 869 return "EG2_DECAYTIME"; | |
| 870 case CONN_DST_EG2_RELEASETIME: | |
| 871 return "EG2_RELEASETIME"; | |
| 872 case CONN_DST_EG2_SUSTAINLEVEL: | |
| 873 return "EG2_SUSTAINLEVEL"; | |
| 874 case CONN_DST_KEYNUMBER: | |
| 875 return "KEYNUMBER"; | |
| 876 case CONN_DST_LEFT: | |
| 877 return "LEFT"; | |
| 878 case CONN_DST_RIGHT: | |
| 879 return "RIGHT"; | |
| 880 case CONN_DST_CENTER: | |
| 881 return "CENTER"; | |
| 882 case CONN_DST_LEFTREAR: | |
| 883 return "LEFTREAR"; | |
| 884 case CONN_DST_RIGHTREAR: | |
| 885 return "RIGHTREAR"; | |
| 886 case CONN_DST_LFE_CHANNEL: | |
| 887 return "LFE_CHANNEL"; | |
| 888 case CONN_DST_CHORUS: | |
| 889 return "CHORUS"; | |
| 890 case CONN_DST_REVERB: | |
| 891 return "REVERB"; | |
| 892 case CONN_DST_VIB_FREQUENCY: | |
| 893 return "VIB_FREQUENCY"; | |
| 894 case CONN_DST_VIB_STARTDELAY: | |
| 895 return "VIB_STARTDELAY"; | |
| 896 case CONN_DST_EG1_DELAYTIME: | |
| 897 return "EG1_DELAYTIME"; | |
| 898 case CONN_DST_EG1_HOLDTIME: | |
| 899 return "EG1_HOLDTIME"; | |
| 900 case CONN_DST_EG1_SHUTDOWNTIME: | |
| 901 return "EG1_SHUTDOWNTIME"; | |
| 902 case CONN_DST_EG2_DELAYTIME: | |
| 903 return "EG2_DELAYTIME"; | |
| 904 case CONN_DST_EG2_HOLDTIME: | |
| 905 return "EG2_HOLDTIME"; | |
| 906 case CONN_DST_FILTER_CUTOFF: | |
| 907 return "FILTER_CUTOFF"; | |
| 908 case CONN_DST_FILTER_Q: | |
| 909 return "FILTER_Q"; | |
| 910 default: | |
| 911 return "UNKOWN"; | |
| 912 } | |
| 913 } | |
| 914 | |
| 915 static void PrintArt(const char *type, CONNECTIONLIST *art, CONNECTION *artList) | |
| 916 { | |
| 917 Uint32 i; | |
| 918 printf("%s Connections:\n", type); | |
| 919 for ( i = 0; i < art->cConnections; ++i ) { | |
| 920 printf(" Source: %s, Control: %s, Destination: %s, Transform: %s, Scale: %d\n", | |
| 921 SourceToString(artList[i].usSource), | |
| 922 SourceToString(artList[i].usControl), | |
| 923 DestinationToString(artList[i].usDestination), | |
| 924 TransformToString(artList[i].usTransform), | |
| 925 artList[i].lScale); | |
| 926 } | |
| 927 } | |
| 928 | |
| 929 static void PrintWave(DLS_Wave *wave, Uint32 index) | |
| 930 { | |
| 931 WaveFMT *format = wave->format; | |
| 932 if ( format ) { | |
| 933 printf(" Wave %u: Format: %hu, %hu channels, %u Hz, %hu bits (length = %u)\n", index, format->wFormatTag, format->wChannels, format->dwSamplesPerSec, format->wBitsPerSample, wave->length); | |
| 934 } | |
| 935 if ( wave->wsmp ) { | |
| 936 Uint32 i; | |
| 937 printf(" wsmp->usUnityNote = %hu\n", wave->wsmp->usUnityNote); | |
| 938 printf(" wsmp->sFineTune = %hd\n", wave->wsmp->sFineTune); | |
| 939 printf(" wsmp->lAttenuation = %d\n", wave->wsmp->lAttenuation); | |
| 940 printf(" wsmp->fulOptions = 0x%8.8x\n", wave->wsmp->fulOptions); | |
| 941 printf(" wsmp->cSampleLoops = %u\n", wave->wsmp->cSampleLoops); | |
| 942 for ( i = 0; i < wave->wsmp->cSampleLoops; ++i ) { | |
| 943 WLOOP *loop = &wave->wsmp_loop[i]; | |
| 944 printf(" Loop %u:\n", i); | |
| 945 printf(" ulStart = %u\n", loop->ulStart); | |
| 946 printf(" ulLength = %u\n", loop->ulLength); | |
| 947 } | |
| 948 } | |
| 949 } | |
| 950 | |
| 951 static void PrintRegion(DLS_Region *region, Uint32 index) | |
| 952 { | |
| 953 printf(" Region %u:\n", index); | |
| 954 if ( region->header ) { | |
| 955 printf(" RangeKey = { %hu - %hu }\n", region->header->RangeKey.usLow, region->header->RangeKey.usHigh); | |
| 956 printf(" RangeVelocity = { %hu - %hu }\n", region->header->RangeVelocity.usLow, region->header->RangeVelocity.usHigh); | |
| 957 printf(" fusOptions = 0x%4.4hx\n", region->header->fusOptions); | |
| 958 printf(" usKeyGroup = %hu\n", region->header->usKeyGroup); | |
| 959 } | |
| 960 if ( region->wlnk ) { | |
| 961 printf(" wlnk->fusOptions = 0x%4.4hx\n", region->wlnk->fusOptions); | |
| 962 printf(" wlnk->usPhaseGroup = %hu\n", region->wlnk->usPhaseGroup); | |
| 963 printf(" wlnk->ulChannel = %u\n", region->wlnk->ulChannel); | |
| 964 printf(" wlnk->ulTableIndex = %u\n", region->wlnk->ulTableIndex); | |
| 965 } | |
| 966 if ( region->wsmp ) { | |
| 967 Uint32 i; | |
| 968 printf(" wsmp->usUnityNote = %hu\n", region->wsmp->usUnityNote); | |
| 969 printf(" wsmp->sFineTune = %hd\n", region->wsmp->sFineTune); | |
| 970 printf(" wsmp->lAttenuation = %d\n", region->wsmp->lAttenuation); | |
| 971 printf(" wsmp->fulOptions = 0x%8.8x\n", region->wsmp->fulOptions); | |
| 972 printf(" wsmp->cSampleLoops = %u\n", region->wsmp->cSampleLoops); | |
| 973 for ( i = 0; i < region->wsmp->cSampleLoops; ++i ) { | |
| 974 WLOOP *loop = ®ion->wsmp_loop[i]; | |
| 975 printf(" Loop %u:\n", i); | |
| 976 printf(" ulStart = %u\n", loop->ulStart); | |
| 977 printf(" ulLength = %u\n", loop->ulLength); | |
| 978 } | |
| 979 } | |
| 980 if ( region->art && region->art->cConnections > 0 ) { | |
| 981 PrintArt("Region", region->art, region->artList); | |
| 982 } | |
| 983 } | |
| 984 | |
| 985 static void PrintInstrument(DLS_Instrument *instrument, Uint32 index) | |
| 986 { | |
| 987 printf("Instrument %u:\n", index); | |
| 988 if ( instrument->name ) { | |
| 989 printf(" Name: %s\n", instrument->name); | |
| 990 } | |
| 991 if ( instrument->header ) { | |
| 992 Uint32 i; | |
| 993 printf(" ulBank = 0x%8.8x\n", instrument->header->Locale.ulBank); | |
| 994 printf(" ulInstrument = %u\n", instrument->header->Locale.ulInstrument); | |
| 995 printf(" Regions: %u\n", instrument->header->cRegions); | |
| 996 for ( i = 0; i < instrument->header->cRegions; ++i ) { | |
| 997 PrintRegion(&instrument->regions[i], i); | |
| 998 } | |
| 999 } | |
| 1000 if ( instrument->art && instrument->art->cConnections > 0 ) { | |
| 1001 PrintArt("Instrument", instrument->art, instrument->artList); | |
| 1002 } | |
| 1003 }; | |
| 1004 | |
| 1005 void PrintDLS(DLS_Data *data) | |
| 1006 { | |
| 1007 printf("DLS Data:\n"); | |
| 1008 printf("cInstruments = %u\n", data->cInstruments); | |
| 1009 if ( data->instruments ) { | |
| 1010 Uint32 i; | |
| 1011 for ( i = 0; i < data->cInstruments; ++i ) { | |
| 1012 PrintInstrument(&data->instruments[i], i); | |
| 1013 } | |
| 1014 } | |
| 1015 if ( data->ptbl && data->ptbl->cCues > 0 ) { | |
| 1016 Uint32 i; | |
| 1017 printf("Cues: "); | |
| 1018 for ( i = 0; i < data->ptbl->cCues; ++i ) { | |
| 1019 if ( i > 0 ) { | |
| 1020 printf(", "); | |
| 1021 } | |
| 1022 printf("%u", data->ptblList[i].ulOffset); | |
| 1023 } | |
| 1024 printf("\n"); | |
| 1025 } | |
| 1026 if ( data->waveList ) { | |
| 1027 Uint32 i; | |
| 1028 printf("Waves:\n"); | |
| 1029 for ( i = 0; i < data->ptbl->cCues; ++i ) { | |
| 1030 PrintWave(&data->waveList[i], i); | |
| 1031 } | |
| 1032 } | |
| 1033 if ( data->name ) { | |
| 1034 printf("Name: %s\n", data->name); | |
| 1035 } | |
| 1036 if ( data->artist ) { | |
| 1037 printf("Artist: %s\n", data->artist); | |
| 1038 } | |
| 1039 if ( data->copyright ) { | |
| 1040 printf("Copyright: %s\n", data->copyright); | |
| 1041 } | |
| 1042 if ( data->comments ) { | |
| 1043 printf("Comments: %s\n", data->comments); | |
| 1044 } | |
| 1045 } | |
| 1046 | |
| 1047 #ifdef TEST_MAIN_DLS | |
| 1048 | |
| 1049 main(int argc, char *argv[]) | |
| 1050 { | |
| 1051 int i; | |
| 1052 for ( i = 1; i < argc; ++i ) { | |
| 1053 DLS_Data *data; | |
| 1054 SDL_RWops *src = SDL_RWFromFile(argv[i], "rb"); | |
| 1055 if ( !src ) { | |
| 1056 fprintf(stderr, "Couldn't open %s: %s", argv[i], SDL_GetError()); | |
| 1057 continue; | |
| 1058 } | |
| 1059 data = LoadDLS(src); | |
| 1060 if ( data ) { | |
| 1061 PrintRIFF(data->chunk, 0); | |
| 1062 PrintDLS(data); | |
| 1063 FreeDLS(data); | |
| 1064 } else { | |
| 1065 fprintf(stderr, "Couldn't load %s: %s\n", argv[i], SDL_GetError()); | |
| 1066 } | |
| 1067 SDL_RWclose(src); | |
| 1068 } | |
| 1069 } | |
| 1070 | |
| 1071 #endif // TEST_MAIN | |
| 1072 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 1073 | |
| 1074 /*-------------------------------------------------------------------------*/ | |
| 1075 /* * * * * * * * * * * * * * * * * instrum_dls.c * * * * * * * * * * * * * */ | |
| 1076 /*-------------------------------------------------------------------------*/ | |
| 1077 | |
| 1078 DLS_Data *Timidity_LoadDLS(SDL_RWops *src) | |
| 1079 { | |
| 1080 DLS_Data *patches = LoadDLS(src); | |
| 1081 if (!patches) { | |
| 1082 SNDDBG(("%s", SDL_GetError())); | |
| 1083 } | |
| 1084 return patches; | |
| 1085 } | |
| 1086 | |
| 1087 void Timidity_FreeDLS(DLS_Data *patches) | |
| 1088 { | |
| 1089 FreeDLS(patches); | |
| 1090 } | |
| 1091 | |
| 1092 /* convert timecents to sec */ | |
| 1093 static double to_msec(int timecent) | |
| 1094 { | |
| 1095 if (timecent == 0x80000000 || timecent == 0) | |
| 1096 return 0.0; | |
| 1097 return 1000.0 * pow(2.0, (double)(timecent / 65536) / 1200.0); | |
| 1098 } | |
| 1099 | |
| 1100 /* convert decipercent to {0..1} */ | |
| 1101 static double to_normalized_percent(int decipercent) | |
| 1102 { | |
| 1103 return ((double)(decipercent / 65536)) / 1000.0; | |
| 1104 } | |
| 1105 | |
| 1106 /* convert from 8bit value to fractional offset (15.15) */ | |
| 1107 static Sint32 to_offset(int offset) | |
| 1108 { | |
| 1109 return (Sint32)offset << (7+15); | |
| 1110 } | |
| 1111 | |
| 1112 /* calculate ramp rate in fractional unit; | |
| 1113 * diff = 8bit, time = msec | |
| 1114 */ | |
| 1115 static Sint32 calc_rate(MidiSong *song, int diff, int sample_rate, double msec) | |
| 1116 { | |
| 1117 double rate; | |
| 1118 | |
| 1119 if(msec < 6) | |
| 1120 msec = 6; | |
| 1121 if(diff == 0) | |
| 1122 diff = 255; | |
| 1123 diff <<= (7+15); | |
| 1124 rate = ((double)diff / song->rate) * song->control_ratio * 1000.0 / msec; | |
| 1125 return (Sint32)rate; | |
| 1126 } | |
| 1127 | |
| 1128 static int load_connection(ULONG cConnections, CONNECTION *artList, USHORT destination) | |
| 1129 { | |
| 1130 ULONG i; | |
| 1131 int value = 0; | |
| 1132 for (i = 0; i < cConnections; ++i) { | |
| 1133 CONNECTION *conn = &artList[i]; | |
| 1134 if(conn->usDestination == destination) { | |
| 1135 // The formula for the destination is: | |
| 1136 // usDestination = usDestination + usTransform(usSource * (usControl * lScale)) | |
| 1137 // Since we are only handling source/control of NONE and identity | |
| 1138 // transform, this simplifies to: usDestination = usDestination + lScale | |
| 1139 if (conn->usSource == CONN_SRC_NONE && | |
| 1140 conn->usControl == CONN_SRC_NONE && | |
| 1141 conn->usTransform == CONN_TRN_NONE) | |
| 1142 value += conn->lScale; | |
| 1143 } | |
| 1144 } | |
| 1145 return value; | |
| 1146 } | |
| 1147 | |
| 1148 static void load_region_dls(MidiSong *song, Sample *sample, DLS_Instrument *ins, Uint32 index) | |
| 1149 { | |
| 1150 DLS_Region *rgn = &ins->regions[index]; | |
| 1151 DLS_Wave *wave = &song->patches->waveList[rgn->wlnk->ulTableIndex]; | |
| 1152 | |
| 1153 sample->low_freq = freq_table[rgn->header->RangeKey.usLow]; | |
| 1154 sample->high_freq = freq_table[rgn->header->RangeKey.usHigh]; | |
| 1155 sample->root_freq = freq_table[rgn->wsmp->usUnityNote]; | |
| 1156 sample->low_vel = rgn->header->RangeVelocity.usLow; | |
| 1157 sample->high_vel = rgn->header->RangeVelocity.usHigh; | |
| 1158 | |
| 1159 sample->modes = MODES_16BIT; | |
| 1160 sample->sample_rate = wave->format->dwSamplesPerSec; | |
| 1161 sample->data_length = wave->length / 2; | |
| 1162 sample->data = (sample_t *)safe_malloc(wave->length); | |
| 1163 memcpy(sample->data, wave->data, wave->length); | |
| 1164 if (rgn->wsmp->cSampleLoops) { | |
| 1165 sample->modes |= (MODES_LOOPING|MODES_SUSTAIN); | |
| 1166 sample->loop_start = rgn->wsmp_loop->ulStart / 2; | |
| 1167 sample->loop_end = sample->loop_start + (rgn->wsmp_loop->ulLength / 2); | |
| 1168 } | |
| 1169 sample->volume = 1.0f; | |
| 1170 | |
| 1171 if (sample->modes & MODES_SUSTAIN) { | |
| 1172 int value; | |
| 1173 double attack, hold, decay, release; int sustain; | |
| 1174 CONNECTIONLIST *art = NULL; | |
| 1175 CONNECTION *artList = NULL; | |
| 1176 | |
| 1177 if (ins->art && ins->art->cConnections > 0 && ins->artList) { | |
| 1178 art = ins->art; | |
| 1179 artList = ins->artList; | |
| 1180 } else { | |
| 1181 art = rgn->art; | |
| 1182 artList = rgn->artList; | |
| 1183 } | |
| 1184 | |
| 1185 value = load_connection(art->cConnections, artList, CONN_DST_EG1_ATTACKTIME); | |
| 1186 attack = to_msec(value); | |
| 1187 value = load_connection(art->cConnections, artList, CONN_DST_EG1_HOLDTIME); | |
| 1188 hold = to_msec(value); | |
| 1189 value = load_connection(art->cConnections, artList, CONN_DST_EG1_DECAYTIME); | |
| 1190 decay = to_msec(value); | |
| 1191 value = load_connection(art->cConnections, artList, CONN_DST_EG1_RELEASETIME); | |
| 1192 release = to_msec(value); | |
| 1193 value = load_connection(art->cConnections, artList, CONN_DST_EG1_SUSTAINLEVEL); | |
| 1194 sustain = (int)((1.0 - to_normalized_percent(value)) * 250.0); | |
| 1195 value = load_connection(art->cConnections, artList, CONN_DST_PAN); | |
| 1196 sample->panning = (int)((0.5 + to_normalized_percent(value)) * 127.0); | |
| 1197 | |
| 1198 /* | |
| 1199 printf("%d, Rate=%d LV=%d HV=%d Low=%d Hi=%d Root=%d Pan=%d Attack=%f Hold=%f Sustain=%d Decay=%f Release=%f\n", index, sample->sample_rate, rgn->header->RangeVelocity.usLow, rgn->header->RangeVelocity.usHigh, sample->low_freq, sample->high_freq, sample->root_freq, sample->panning, attack, hold, sustain, decay, release); | |
| 1200 */ | |
| 1201 | |
| 1202 sample->envelope_offset[0] = to_offset(255); | |
| 1203 sample->envelope_rate[0] = calc_rate(song, 255, sample->sample_rate, attack); | |
| 1204 | |
| 1205 sample->envelope_offset[1] = to_offset(250); | |
| 1206 sample->envelope_rate[1] = calc_rate(song, 5, sample->sample_rate, hold); | |
| 1207 | |
| 1208 sample->envelope_offset[2] = to_offset(sustain); | |
| 1209 sample->envelope_rate[2] = calc_rate(song, 255 - sustain, sample->sample_rate, decay); | |
| 1210 | |
| 1211 sample->envelope_offset[3] = to_offset(0); | |
| 1212 sample->envelope_rate[3] = calc_rate(song, 5 + sustain, sample->sample_rate, release); | |
| 1213 | |
| 1214 sample->envelope_offset[4] = to_offset(0); | |
| 1215 sample->envelope_rate[4] = to_offset(1); | |
| 1216 | |
| 1217 sample->envelope_offset[5] = to_offset(0); | |
| 1218 sample->envelope_rate[5] = to_offset(1); | |
| 1219 | |
| 1220 sample->modes |= MODES_ENVELOPE; | |
| 1221 } | |
| 1222 | |
| 1223 sample->data_length <<= FRACTION_BITS; | |
| 1224 sample->loop_start <<= FRACTION_BITS; | |
| 1225 sample->loop_end <<= FRACTION_BITS; | |
| 1226 } | |
| 1227 | |
| 1228 Instrument *load_instrument_dls(MidiSong *song, int drum, int bank, int instrument) | |
| 1229 { | |
| 1230 Instrument *inst; | |
| 1231 Uint32 i; | |
| 1232 DLS_Instrument *dls_ins; | |
| 1233 | |
| 1234 if (!song->patches) | |
| 1235 return(NULL); | |
| 1236 | |
| 1237 drum = drum ? 0x80000000 : 0; | |
| 1238 for (i = 0; i < song->patches->cInstruments; ++i) { | |
| 1239 dls_ins = &song->patches->instruments[i]; | |
| 1240 if ((dls_ins->header->Locale.ulBank & 0x80000000) == drum && | |
| 1241 ((dls_ins->header->Locale.ulBank >> 8) & 0xFF) == bank && | |
| 1242 dls_ins->header->Locale.ulInstrument == instrument) | |
| 1243 break; | |
| 1244 } | |
| 1245 if (i == song->patches->cInstruments && !bank) { | |
| 1246 for (i = 0; i < song->patches->cInstruments; ++i) { | |
| 1247 dls_ins = &song->patches->instruments[i]; | |
| 1248 if ((dls_ins->header->Locale.ulBank & 0x80000000) == drum && | |
| 1249 dls_ins->header->Locale.ulInstrument == instrument) | |
| 1250 break; | |
| 1251 } | |
| 1252 } | |
| 1253 if (i == song->patches->cInstruments) { | |
| 1254 SNDDBG(("Couldn't find %s instrument %d in bank %d\n", drum ? "drum" : "melodic", instrument, bank)); | |
| 1255 return(NULL); | |
| 1256 } | |
| 1257 | |
| 1258 inst = (Instrument *)safe_malloc(sizeof(*inst)); | |
| 1259 inst->samples = dls_ins->header->cRegions; | |
| 1260 inst->sample = (Sample *)safe_malloc(inst->samples * sizeof(*inst->sample)); | |
| 1261 memset(inst->sample, 0, inst->samples * sizeof(*inst->sample)); | |
| 1262 /* | |
| 1263 printf("Found %s instrument %d in bank %d named %s with %d regions\n", drum ? "drum" : "melodic", instrument, bank, dls_ins->name, inst->samples); | |
| 1264 */ | |
| 1265 for (i = 0; i < dls_ins->header->cRegions; ++i) { | |
| 1266 load_region_dls(song, &inst->sample[i], dls_ins, i); | |
| 1267 } | |
| 1268 return(inst); | |
| 1269 } |