/[svn]/libgig/trunk/src/DLS.cpp
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Contents of /libgig/trunk/src/DLS.cpp

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Revision 2329 - (show annotations) (download)
Mon Mar 12 14:59:10 2012 UTC (9 years, 7 months ago) by schoenebeck
File size: 68413 byte(s)
* added new method DLS::File::GetExtensionFile(int index)
* bumped version to 3.3.0svn3

1 /***************************************************************************
2 * *
3 * libgig - C++ cross-platform Gigasampler format file access library *
4 * *
5 * Copyright (C) 2003-2009 by Christian Schoenebeck *
6 * <cuse@users.sourceforge.net> *
7 * *
8 * This library is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This library is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this library; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #include "DLS.h"
25
26 #include <algorithm>
27 #include <time.h>
28
29 #ifdef __APPLE__
30 #include <CoreFoundation/CFUUID.h>
31 #elif defined(HAVE_UUID_UUID_H)
32 #include <uuid/uuid.h>
33 #endif
34
35 #include "helper.h"
36
37 // macros to decode connection transforms
38 #define CONN_TRANSFORM_SRC(x) ((x >> 10) & 0x000F)
39 #define CONN_TRANSFORM_CTL(x) ((x >> 4) & 0x000F)
40 #define CONN_TRANSFORM_DST(x) (x & 0x000F)
41 #define CONN_TRANSFORM_BIPOLAR_SRC(x) (x & 0x4000)
42 #define CONN_TRANSFORM_BIPOLAR_CTL(x) (x & 0x0100)
43 #define CONN_TRANSFORM_INVERT_SRC(x) (x & 0x8000)
44 #define CONN_TRANSFORM_INVERT_CTL(x) (x & 0x0200)
45
46 // macros to encode connection transforms
47 #define CONN_TRANSFORM_SRC_ENCODE(x) ((x & 0x000F) << 10)
48 #define CONN_TRANSFORM_CTL_ENCODE(x) ((x & 0x000F) << 4)
49 #define CONN_TRANSFORM_DST_ENCODE(x) (x & 0x000F)
50 #define CONN_TRANSFORM_BIPOLAR_SRC_ENCODE(x) ((x) ? 0x4000 : 0)
51 #define CONN_TRANSFORM_BIPOLAR_CTL_ENCODE(x) ((x) ? 0x0100 : 0)
52 #define CONN_TRANSFORM_INVERT_SRC_ENCODE(x) ((x) ? 0x8000 : 0)
53 #define CONN_TRANSFORM_INVERT_CTL_ENCODE(x) ((x) ? 0x0200 : 0)
54
55 #define DRUM_TYPE_MASK 0x80000000
56
57 #define F_RGN_OPTION_SELFNONEXCLUSIVE 0x0001
58
59 #define F_WAVELINK_PHASE_MASTER 0x0001
60 #define F_WAVELINK_MULTICHANNEL 0x0002
61
62 #define F_WSMP_NO_TRUNCATION 0x0001
63 #define F_WSMP_NO_COMPRESSION 0x0002
64
65 #define MIDI_BANK_COARSE(x) ((x & 0x00007F00) >> 8) // CC0
66 #define MIDI_BANK_FINE(x) (x & 0x0000007F) // CC32
67 #define MIDI_BANK_MERGE(coarse, fine) ((((uint16_t) coarse) << 7) | fine) // CC0 + CC32
68 #define MIDI_BANK_ENCODE(coarse, fine) (((coarse & 0x0000007F) << 8) | (fine & 0x0000007F))
69
70 namespace DLS {
71
72 // *************** Connection ***************
73 // *
74
75 void Connection::Init(conn_block_t* Header) {
76 Source = (conn_src_t) Header->source;
77 Control = (conn_src_t) Header->control;
78 Destination = (conn_dst_t) Header->destination;
79 Scale = Header->scale;
80 SourceTransform = (conn_trn_t) CONN_TRANSFORM_SRC(Header->transform);
81 ControlTransform = (conn_trn_t) CONN_TRANSFORM_CTL(Header->transform);
82 DestinationTransform = (conn_trn_t) CONN_TRANSFORM_DST(Header->transform);
83 SourceInvert = CONN_TRANSFORM_INVERT_SRC(Header->transform);
84 SourceBipolar = CONN_TRANSFORM_BIPOLAR_SRC(Header->transform);
85 ControlInvert = CONN_TRANSFORM_INVERT_CTL(Header->transform);
86 ControlBipolar = CONN_TRANSFORM_BIPOLAR_CTL(Header->transform);
87 }
88
89 Connection::conn_block_t Connection::ToConnBlock() {
90 conn_block_t c;
91 c.source = Source;
92 c.control = Control;
93 c.destination = Destination;
94 c.scale = Scale;
95 c.transform = CONN_TRANSFORM_SRC_ENCODE(SourceTransform) |
96 CONN_TRANSFORM_CTL_ENCODE(ControlTransform) |
97 CONN_TRANSFORM_DST_ENCODE(DestinationTransform) |
98 CONN_TRANSFORM_INVERT_SRC_ENCODE(SourceInvert) |
99 CONN_TRANSFORM_BIPOLAR_SRC_ENCODE(SourceBipolar) |
100 CONN_TRANSFORM_INVERT_CTL_ENCODE(ControlInvert) |
101 CONN_TRANSFORM_BIPOLAR_CTL_ENCODE(ControlBipolar);
102 return c;
103 }
104
105
106
107 // *************** Articulation ***************
108 // *
109
110 /** @brief Constructor.
111 *
112 * Expects an 'artl' or 'art2' chunk to be given where the articulation
113 * connections will be read from.
114 *
115 * @param artl - pointer to an 'artl' or 'art2' chunk
116 * @throws Exception if no 'artl' or 'art2' chunk was given
117 */
118 Articulation::Articulation(RIFF::Chunk* artl) {
119 pArticulationCk = artl;
120 if (artl->GetChunkID() != CHUNK_ID_ART2 &&
121 artl->GetChunkID() != CHUNK_ID_ARTL) {
122 throw DLS::Exception("<artl-ck> or <art2-ck> chunk expected");
123 }
124 HeaderSize = artl->ReadUint32();
125 Connections = artl->ReadUint32();
126 artl->SetPos(HeaderSize);
127
128 pConnections = new Connection[Connections];
129 Connection::conn_block_t connblock;
130 for (uint32_t i = 0; i < Connections; i++) {
131 artl->Read(&connblock.source, 1, 2);
132 artl->Read(&connblock.control, 1, 2);
133 artl->Read(&connblock.destination, 1, 2);
134 artl->Read(&connblock.transform, 1, 2);
135 artl->Read(&connblock.scale, 1, 4);
136 pConnections[i].Init(&connblock);
137 }
138 }
139
140 Articulation::~Articulation() {
141 if (pConnections) delete[] pConnections;
142 }
143
144 /**
145 * Apply articulation connections to the respective RIFF chunks. You
146 * have to call File::Save() to make changes persistent.
147 */
148 void Articulation::UpdateChunks() {
149 const int iEntrySize = 12; // 12 bytes per connection block
150 pArticulationCk->Resize(HeaderSize + Connections * iEntrySize);
151 uint8_t* pData = (uint8_t*) pArticulationCk->LoadChunkData();
152 store16(&pData[0], HeaderSize);
153 store16(&pData[2], Connections);
154 for (uint32_t i = 0; i < Connections; i++) {
155 Connection::conn_block_t c = pConnections[i].ToConnBlock();
156 store16(&pData[HeaderSize + i * iEntrySize], c.source);
157 store16(&pData[HeaderSize + i * iEntrySize + 2], c.control);
158 store16(&pData[HeaderSize + i * iEntrySize + 4], c.destination);
159 store16(&pData[HeaderSize + i * iEntrySize + 6], c.transform);
160 store32(&pData[HeaderSize + i * iEntrySize + 8], c.scale);
161 }
162 }
163
164
165
166 // *************** Articulator ***************
167 // *
168
169 Articulator::Articulator(RIFF::List* ParentList) {
170 pParentList = ParentList;
171 pArticulations = NULL;
172 }
173
174 Articulation* Articulator::GetFirstArticulation() {
175 if (!pArticulations) LoadArticulations();
176 if (!pArticulations) return NULL;
177 ArticulationsIterator = pArticulations->begin();
178 return (ArticulationsIterator != pArticulations->end()) ? *ArticulationsIterator : NULL;
179 }
180
181 Articulation* Articulator::GetNextArticulation() {
182 if (!pArticulations) return NULL;
183 ArticulationsIterator++;
184 return (ArticulationsIterator != pArticulations->end()) ? *ArticulationsIterator : NULL;
185 }
186
187 void Articulator::LoadArticulations() {
188 // prefer articulation level 2
189 RIFF::List* lart = pParentList->GetSubList(LIST_TYPE_LAR2);
190 if (!lart) lart = pParentList->GetSubList(LIST_TYPE_LART);
191 if (lart) {
192 uint32_t artCkType = (lart->GetListType() == LIST_TYPE_LAR2) ? CHUNK_ID_ART2
193 : CHUNK_ID_ARTL;
194 RIFF::Chunk* art = lart->GetFirstSubChunk();
195 while (art) {
196 if (art->GetChunkID() == artCkType) {
197 if (!pArticulations) pArticulations = new ArticulationList;
198 pArticulations->push_back(new Articulation(art));
199 }
200 art = lart->GetNextSubChunk();
201 }
202 }
203 }
204
205 Articulator::~Articulator() {
206 if (pArticulations) {
207 ArticulationList::iterator iter = pArticulations->begin();
208 ArticulationList::iterator end = pArticulations->end();
209 while (iter != end) {
210 delete *iter;
211 iter++;
212 }
213 delete pArticulations;
214 }
215 }
216
217 /**
218 * Apply all articulations to the respective RIFF chunks. You have to
219 * call File::Save() to make changes persistent.
220 */
221 void Articulator::UpdateChunks() {
222 if (pArticulations) {
223 ArticulationList::iterator iter = pArticulations->begin();
224 ArticulationList::iterator end = pArticulations->end();
225 for (; iter != end; ++iter) {
226 (*iter)->UpdateChunks();
227 }
228 }
229 }
230
231
232
233 // *************** Info ***************
234 // *
235
236 /** @brief Constructor.
237 *
238 * Initializes the info strings with values provided by an INFO list chunk.
239 *
240 * @param list - pointer to a list chunk which contains an INFO list chunk
241 */
242 Info::Info(RIFF::List* list) {
243 pFixedStringLengths = NULL;
244 pResourceListChunk = list;
245 if (list) {
246 RIFF::List* lstINFO = list->GetSubList(LIST_TYPE_INFO);
247 if (lstINFO) {
248 LoadString(CHUNK_ID_INAM, lstINFO, Name);
249 LoadString(CHUNK_ID_IARL, lstINFO, ArchivalLocation);
250 LoadString(CHUNK_ID_ICRD, lstINFO, CreationDate);
251 LoadString(CHUNK_ID_ICMT, lstINFO, Comments);
252 LoadString(CHUNK_ID_IPRD, lstINFO, Product);
253 LoadString(CHUNK_ID_ICOP, lstINFO, Copyright);
254 LoadString(CHUNK_ID_IART, lstINFO, Artists);
255 LoadString(CHUNK_ID_IGNR, lstINFO, Genre);
256 LoadString(CHUNK_ID_IKEY, lstINFO, Keywords);
257 LoadString(CHUNK_ID_IENG, lstINFO, Engineer);
258 LoadString(CHUNK_ID_ITCH, lstINFO, Technician);
259 LoadString(CHUNK_ID_ISFT, lstINFO, Software);
260 LoadString(CHUNK_ID_IMED, lstINFO, Medium);
261 LoadString(CHUNK_ID_ISRC, lstINFO, Source);
262 LoadString(CHUNK_ID_ISRF, lstINFO, SourceForm);
263 LoadString(CHUNK_ID_ICMS, lstINFO, Commissioned);
264 LoadString(CHUNK_ID_ISBJ, lstINFO, Subject);
265 }
266 }
267 }
268
269 Info::~Info() {
270 }
271
272 /**
273 * Forces specific Info fields to be of a fixed length when being saved
274 * to a file. By default the respective RIFF chunk of an Info field
275 * will have a size analogue to its actual string length. With this
276 * method however this behavior can be overridden, allowing to force an
277 * arbitrary fixed size individually for each Info field.
278 *
279 * This method is used as a workaround for the gig format, not for DLS.
280 *
281 * @param lengths - NULL terminated array of string_length_t elements
282 */
283 void Info::SetFixedStringLengths(const string_length_t* lengths) {
284 pFixedStringLengths = lengths;
285 }
286
287 /** @brief Load given INFO field.
288 *
289 * Load INFO field from INFO chunk with chunk ID \a ChunkID from INFO
290 * list chunk \a lstINFO and save value to \a s.
291 */
292 void Info::LoadString(uint32_t ChunkID, RIFF::List* lstINFO, String& s) {
293 RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID);
294 ::LoadString(ck, s); // function from helper.h
295 }
296
297 /** @brief Apply given INFO field to the respective chunk.
298 *
299 * Apply given info value to info chunk with ID \a ChunkID, which is a
300 * subchunk of INFO list chunk \a lstINFO. If the given chunk already
301 * exists, value \a s will be applied. Otherwise if it doesn't exist yet
302 * and either \a s or \a sDefault is not an empty string, such a chunk
303 * will be created and either \a s or \a sDefault will be applied
304 * (depending on which one is not an empty string, if both are not an
305 * empty string \a s will be preferred).
306 *
307 * @param ChunkID - 32 bit RIFF chunk ID of INFO subchunk
308 * @param lstINFO - parent (INFO) RIFF list chunk
309 * @param s - current value of info field
310 * @param sDefault - default value
311 */
312 void Info::SaveString(uint32_t ChunkID, RIFF::List* lstINFO, const String& s, const String& sDefault) {
313 int size = 0;
314 if (pFixedStringLengths) {
315 for (int i = 0 ; pFixedStringLengths[i].length ; i++) {
316 if (pFixedStringLengths[i].chunkId == ChunkID) {
317 size = pFixedStringLengths[i].length;
318 break;
319 }
320 }
321 }
322 RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID);
323 ::SaveString(ChunkID, ck, lstINFO, s, sDefault, size != 0, size); // function from helper.h
324 }
325
326 /** @brief Update chunks with current info values.
327 *
328 * Apply current INFO field values to the respective INFO chunks. You
329 * have to call File::Save() to make changes persistent.
330 */
331 void Info::UpdateChunks() {
332 if (!pResourceListChunk) return;
333
334 // make sure INFO list chunk exists
335 RIFF::List* lstINFO = pResourceListChunk->GetSubList(LIST_TYPE_INFO);
336
337 String defaultName = "";
338 String defaultCreationDate = "";
339 String defaultSoftware = "";
340 String defaultComments = "";
341
342 uint32_t resourceType = pResourceListChunk->GetListType();
343
344 if (!lstINFO) {
345 lstINFO = pResourceListChunk->AddSubList(LIST_TYPE_INFO);
346
347 // assemble default values
348 defaultName = "NONAME";
349
350 if (resourceType == RIFF_TYPE_DLS) {
351 // get current date
352 time_t now = time(NULL);
353 tm* pNowBroken = localtime(&now);
354 char buf[11];
355 strftime(buf, 11, "%F", pNowBroken);
356 defaultCreationDate = buf;
357
358 defaultComments = "Created with " + libraryName() + " " + libraryVersion();
359 }
360 if (resourceType == RIFF_TYPE_DLS || resourceType == LIST_TYPE_INS)
361 {
362 defaultSoftware = libraryName() + " " + libraryVersion();
363 }
364 }
365
366 // save values
367
368 SaveString(CHUNK_ID_IARL, lstINFO, ArchivalLocation, String(""));
369 SaveString(CHUNK_ID_IART, lstINFO, Artists, String(""));
370 SaveString(CHUNK_ID_ICMS, lstINFO, Commissioned, String(""));
371 SaveString(CHUNK_ID_ICMT, lstINFO, Comments, defaultComments);
372 SaveString(CHUNK_ID_ICOP, lstINFO, Copyright, String(""));
373 SaveString(CHUNK_ID_ICRD, lstINFO, CreationDate, defaultCreationDate);
374 SaveString(CHUNK_ID_IENG, lstINFO, Engineer, String(""));
375 SaveString(CHUNK_ID_IGNR, lstINFO, Genre, String(""));
376 SaveString(CHUNK_ID_IKEY, lstINFO, Keywords, String(""));
377 SaveString(CHUNK_ID_IMED, lstINFO, Medium, String(""));
378 SaveString(CHUNK_ID_INAM, lstINFO, Name, defaultName);
379 SaveString(CHUNK_ID_IPRD, lstINFO, Product, String(""));
380 SaveString(CHUNK_ID_ISBJ, lstINFO, Subject, String(""));
381 SaveString(CHUNK_ID_ISFT, lstINFO, Software, defaultSoftware);
382 SaveString(CHUNK_ID_ISRC, lstINFO, Source, String(""));
383 SaveString(CHUNK_ID_ISRF, lstINFO, SourceForm, String(""));
384 SaveString(CHUNK_ID_ITCH, lstINFO, Technician, String(""));
385 }
386
387
388
389 // *************** Resource ***************
390 // *
391
392 /** @brief Constructor.
393 *
394 * Initializes the 'Resource' object with values provided by a given
395 * INFO list chunk and a DLID chunk (the latter optional).
396 *
397 * @param Parent - pointer to parent 'Resource', NULL if this is
398 * the toplevel 'Resource' object
399 * @param lstResource - pointer to an INFO list chunk
400 */
401 Resource::Resource(Resource* Parent, RIFF::List* lstResource) {
402 pParent = Parent;
403 pResourceList = lstResource;
404
405 pInfo = new Info(lstResource);
406
407 RIFF::Chunk* ckDLSID = lstResource->GetSubChunk(CHUNK_ID_DLID);
408 if (ckDLSID) {
409 pDLSID = new dlsid_t;
410 ckDLSID->Read(&pDLSID->ulData1, 1, 4);
411 ckDLSID->Read(&pDLSID->usData2, 1, 2);
412 ckDLSID->Read(&pDLSID->usData3, 1, 2);
413 ckDLSID->Read(pDLSID->abData, 8, 1);
414 }
415 else pDLSID = NULL;
416 }
417
418 Resource::~Resource() {
419 if (pDLSID) delete pDLSID;
420 if (pInfo) delete pInfo;
421 }
422
423 /** @brief Update chunks with current Resource data.
424 *
425 * Apply Resource data persistently below the previously given resource
426 * list chunk. This will currently only include the INFO data. The DLSID
427 * will not be applied at the moment (yet).
428 *
429 * You have to call File::Save() to make changes persistent.
430 */
431 void Resource::UpdateChunks() {
432 pInfo->UpdateChunks();
433
434 if (pDLSID) {
435 // make sure 'dlid' chunk exists
436 RIFF::Chunk* ckDLSID = pResourceList->GetSubChunk(CHUNK_ID_DLID);
437 if (!ckDLSID) ckDLSID = pResourceList->AddSubChunk(CHUNK_ID_DLID, 16);
438 uint8_t* pData = (uint8_t*)ckDLSID->LoadChunkData();
439 // update 'dlid' chunk
440 store32(&pData[0], pDLSID->ulData1);
441 store16(&pData[4], pDLSID->usData2);
442 store16(&pData[6], pDLSID->usData3);
443 memcpy(&pData[8], pDLSID->abData, 8);
444 }
445 }
446
447 /**
448 * Generates a new DLSID for the resource.
449 */
450 void Resource::GenerateDLSID() {
451 #if defined(WIN32) || defined(__APPLE__) || defined(HAVE_UUID_GENERATE)
452
453 if (!pDLSID) pDLSID = new dlsid_t;
454
455 #ifdef WIN32
456
457 UUID uuid;
458 UuidCreate(&uuid);
459 pDLSID->ulData1 = uuid.Data1;
460 pDLSID->usData2 = uuid.Data2;
461 pDLSID->usData3 = uuid.Data3;
462 memcpy(pDLSID->abData, uuid.Data4, 8);
463
464 #elif defined(__APPLE__)
465
466 CFUUIDRef uuidRef = CFUUIDCreate(NULL);
467 CFUUIDBytes uuid = CFUUIDGetUUIDBytes(uuidRef);
468 CFRelease(uuidRef);
469 pDLSID->ulData1 = uuid.byte0 | uuid.byte1 << 8 | uuid.byte2 << 16 | uuid.byte3 << 24;
470 pDLSID->usData2 = uuid.byte4 | uuid.byte5 << 8;
471 pDLSID->usData3 = uuid.byte6 | uuid.byte7 << 8;
472 pDLSID->abData[0] = uuid.byte8;
473 pDLSID->abData[1] = uuid.byte9;
474 pDLSID->abData[2] = uuid.byte10;
475 pDLSID->abData[3] = uuid.byte11;
476 pDLSID->abData[4] = uuid.byte12;
477 pDLSID->abData[5] = uuid.byte13;
478 pDLSID->abData[6] = uuid.byte14;
479 pDLSID->abData[7] = uuid.byte15;
480 #else
481 uuid_t uuid;
482 uuid_generate(uuid);
483 pDLSID->ulData1 = uuid[0] | uuid[1] << 8 | uuid[2] << 16 | uuid[3] << 24;
484 pDLSID->usData2 = uuid[4] | uuid[5] << 8;
485 pDLSID->usData3 = uuid[6] | uuid[7] << 8;
486 memcpy(pDLSID->abData, &uuid[8], 8);
487 #endif
488 #endif
489 }
490
491
492 // *************** Sampler ***************
493 // *
494
495 Sampler::Sampler(RIFF::List* ParentList) {
496 pParentList = ParentList;
497 RIFF::Chunk* wsmp = ParentList->GetSubChunk(CHUNK_ID_WSMP);
498 if (wsmp) {
499 uiHeaderSize = wsmp->ReadUint32();
500 UnityNote = wsmp->ReadUint16();
501 FineTune = wsmp->ReadInt16();
502 Gain = wsmp->ReadInt32();
503 SamplerOptions = wsmp->ReadUint32();
504 SampleLoops = wsmp->ReadUint32();
505 } else { // 'wsmp' chunk missing
506 uiHeaderSize = 20;
507 UnityNote = 60;
508 FineTune = 0; // +- 0 cents
509 Gain = 0; // 0 dB
510 SamplerOptions = F_WSMP_NO_COMPRESSION;
511 SampleLoops = 0;
512 }
513 NoSampleDepthTruncation = SamplerOptions & F_WSMP_NO_TRUNCATION;
514 NoSampleCompression = SamplerOptions & F_WSMP_NO_COMPRESSION;
515 pSampleLoops = (SampleLoops) ? new sample_loop_t[SampleLoops] : NULL;
516 if (SampleLoops) {
517 wsmp->SetPos(uiHeaderSize);
518 for (uint32_t i = 0; i < SampleLoops; i++) {
519 wsmp->Read(pSampleLoops + i, 4, 4);
520 if (pSampleLoops[i].Size > sizeof(sample_loop_t)) { // if loop struct was extended
521 wsmp->SetPos(pSampleLoops[i].Size - sizeof(sample_loop_t), RIFF::stream_curpos);
522 }
523 }
524 }
525 }
526
527 Sampler::~Sampler() {
528 if (pSampleLoops) delete[] pSampleLoops;
529 }
530
531 void Sampler::SetGain(int32_t gain) {
532 Gain = gain;
533 }
534
535 /**
536 * Apply all sample player options to the respective RIFF chunk. You
537 * have to call File::Save() to make changes persistent.
538 */
539 void Sampler::UpdateChunks() {
540 // make sure 'wsmp' chunk exists
541 RIFF::Chunk* wsmp = pParentList->GetSubChunk(CHUNK_ID_WSMP);
542 int wsmpSize = uiHeaderSize + SampleLoops * 16;
543 if (!wsmp) {
544 wsmp = pParentList->AddSubChunk(CHUNK_ID_WSMP, wsmpSize);
545 } else if (wsmp->GetSize() != wsmpSize) {
546 wsmp->Resize(wsmpSize);
547 }
548 uint8_t* pData = (uint8_t*) wsmp->LoadChunkData();
549 // update headers size
550 store32(&pData[0], uiHeaderSize);
551 // update respective sampler options bits
552 SamplerOptions = (NoSampleDepthTruncation) ? SamplerOptions | F_WSMP_NO_TRUNCATION
553 : SamplerOptions & (~F_WSMP_NO_TRUNCATION);
554 SamplerOptions = (NoSampleCompression) ? SamplerOptions | F_WSMP_NO_COMPRESSION
555 : SamplerOptions & (~F_WSMP_NO_COMPRESSION);
556 store16(&pData[4], UnityNote);
557 store16(&pData[6], FineTune);
558 store32(&pData[8], Gain);
559 store32(&pData[12], SamplerOptions);
560 store32(&pData[16], SampleLoops);
561 // update loop definitions
562 for (uint32_t i = 0; i < SampleLoops; i++) {
563 //FIXME: this does not handle extended loop structs correctly
564 store32(&pData[uiHeaderSize + i * 16], pSampleLoops[i].Size);
565 store32(&pData[uiHeaderSize + i * 16 + 4], pSampleLoops[i].LoopType);
566 store32(&pData[uiHeaderSize + i * 16 + 8], pSampleLoops[i].LoopStart);
567 store32(&pData[uiHeaderSize + i * 16 + 12], pSampleLoops[i].LoopLength);
568 }
569 }
570
571 /**
572 * Adds a new sample loop with the provided loop definition.
573 *
574 * @param pLoopDef - points to a loop definition that is to be copied
575 */
576 void Sampler::AddSampleLoop(sample_loop_t* pLoopDef) {
577 sample_loop_t* pNewLoops = new sample_loop_t[SampleLoops + 1];
578 // copy old loops array
579 for (int i = 0; i < SampleLoops; i++) {
580 pNewLoops[i] = pSampleLoops[i];
581 }
582 // add the new loop
583 pNewLoops[SampleLoops] = *pLoopDef;
584 // auto correct size field
585 pNewLoops[SampleLoops].Size = sizeof(DLS::sample_loop_t);
586 // free the old array and update the member variables
587 if (SampleLoops) delete[] pSampleLoops;
588 pSampleLoops = pNewLoops;
589 SampleLoops++;
590 }
591
592 /**
593 * Deletes an existing sample loop.
594 *
595 * @param pLoopDef - pointer to existing loop definition
596 * @throws Exception - if given loop definition does not exist
597 */
598 void Sampler::DeleteSampleLoop(sample_loop_t* pLoopDef) {
599 sample_loop_t* pNewLoops = new sample_loop_t[SampleLoops - 1];
600 // copy old loops array (skipping given loop)
601 for (int i = 0, o = 0; i < SampleLoops; i++) {
602 if (&pSampleLoops[i] == pLoopDef) continue;
603 if (o == SampleLoops - 1) {
604 delete[] pNewLoops;
605 throw Exception("Could not delete Sample Loop, because it does not exist");
606 }
607 pNewLoops[o] = pSampleLoops[i];
608 o++;
609 }
610 // free the old array and update the member variables
611 if (SampleLoops) delete[] pSampleLoops;
612 pSampleLoops = pNewLoops;
613 SampleLoops--;
614 }
615
616
617
618 // *************** Sample ***************
619 // *
620
621 /** @brief Constructor.
622 *
623 * Load an existing sample or create a new one. A 'wave' list chunk must
624 * be given to this constructor. In case the given 'wave' list chunk
625 * contains a 'fmt' and 'data' chunk, the format and sample data will be
626 * loaded from there, otherwise default values will be used and those
627 * chunks will be created when File::Save() will be called later on.
628 *
629 * @param pFile - pointer to DLS::File where this sample is
630 * located (or will be located)
631 * @param waveList - pointer to 'wave' list chunk which is (or
632 * will be) associated with this sample
633 * @param WavePoolOffset - offset of this sample data from wave pool
634 * ('wvpl') list chunk
635 */
636 Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset) : Resource(pFile, waveList) {
637 pWaveList = waveList;
638 ulWavePoolOffset = WavePoolOffset - LIST_HEADER_SIZE;
639 pCkFormat = waveList->GetSubChunk(CHUNK_ID_FMT);
640 pCkData = waveList->GetSubChunk(CHUNK_ID_DATA);
641 if (pCkFormat) {
642 // common fields
643 FormatTag = pCkFormat->ReadUint16();
644 Channels = pCkFormat->ReadUint16();
645 SamplesPerSecond = pCkFormat->ReadUint32();
646 AverageBytesPerSecond = pCkFormat->ReadUint32();
647 BlockAlign = pCkFormat->ReadUint16();
648 // PCM format specific
649 if (FormatTag == DLS_WAVE_FORMAT_PCM) {
650 BitDepth = pCkFormat->ReadUint16();
651 FrameSize = (BitDepth / 8) * Channels;
652 } else { // unsupported sample data format
653 BitDepth = 0;
654 FrameSize = 0;
655 }
656 } else { // 'fmt' chunk missing
657 FormatTag = DLS_WAVE_FORMAT_PCM;
658 BitDepth = 16;
659 Channels = 1;
660 SamplesPerSecond = 44100;
661 AverageBytesPerSecond = (BitDepth / 8) * SamplesPerSecond * Channels;
662 FrameSize = (BitDepth / 8) * Channels;
663 BlockAlign = FrameSize;
664 }
665 SamplesTotal = (pCkData) ? (FormatTag == DLS_WAVE_FORMAT_PCM) ? pCkData->GetSize() / FrameSize
666 : 0
667 : 0;
668 }
669
670 /** @brief Destructor.
671 *
672 * Removes RIFF chunks associated with this Sample and frees all
673 * memory occupied by this sample.
674 */
675 Sample::~Sample() {
676 RIFF::List* pParent = pWaveList->GetParent();
677 pParent->DeleteSubChunk(pWaveList);
678 }
679
680 /** @brief Load sample data into RAM.
681 *
682 * In case the respective 'data' chunk exists, the sample data will be
683 * loaded into RAM (if not done already) and a pointer to the data in
684 * RAM will be returned. If this is a new sample, you have to call
685 * Resize() with the desired sample size to create the mandatory RIFF
686 * chunk for the sample wave data.
687 *
688 * You can call LoadChunkData() again if you previously scheduled to
689 * enlarge the sample data RIFF chunk with a Resize() call. In that case
690 * the buffer will be enlarged to the new, scheduled size and you can
691 * already place the sample wave data to the buffer and finally call
692 * File::Save() to enlarge the sample data's chunk physically and write
693 * the new sample wave data in one rush. This approach is definitely
694 * recommended if you have to enlarge and write new sample data to a lot
695 * of samples.
696 *
697 * <b>Caution:</b> the buffer pointer will be invalidated once
698 * File::Save() was called. You have to call LoadChunkData() again to
699 * get a new, valid pointer whenever File::Save() was called.
700 *
701 * @returns pointer to sample data in RAM, NULL in case respective
702 * 'data' chunk does not exist (yet)
703 * @throws Exception if data buffer could not be enlarged
704 * @see Resize(), File::Save()
705 */
706 void* Sample::LoadSampleData() {
707 return (pCkData) ? pCkData->LoadChunkData() : NULL;
708 }
709
710 /** @brief Free sample data from RAM.
711 *
712 * In case sample data was previously successfully loaded into RAM with
713 * LoadSampleData(), this method will free the sample data from RAM.
714 */
715 void Sample::ReleaseSampleData() {
716 if (pCkData) pCkData->ReleaseChunkData();
717 }
718
719 /** @brief Returns sample size.
720 *
721 * Returns the sample wave form's data size (in sample points). This is
722 * actually the current, physical size (converted to sample points) of
723 * the RIFF chunk which encapsulates the sample's wave data. The
724 * returned value is dependant to the current FrameSize value.
725 *
726 * @returns number of sample points or 0 if FormatTag != DLS_WAVE_FORMAT_PCM
727 * @see FrameSize, FormatTag
728 */
729 unsigned long Sample::GetSize() {
730 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0;
731 return (pCkData) ? pCkData->GetSize() / FrameSize : 0;
732 }
733
734 /** @brief Resize sample.
735 *
736 * Resizes the sample's wave form data, that is the actual size of
737 * sample wave data possible to be written for this sample. This call
738 * will return immediately and just schedule the resize operation. You
739 * should call File::Save() to actually perform the resize operation(s)
740 * "physically" to the file. As this can take a while on large files, it
741 * is recommended to call Resize() first on all samples which have to be
742 * resized and finally to call File::Save() to perform all those resize
743 * operations in one rush.
744 *
745 * The actual size (in bytes) is dependant to the current FrameSize
746 * value. You may want to set FrameSize before calling Resize().
747 *
748 * <b>Caution:</b> You cannot directly write to enlarged samples before
749 * calling File::Save() as this might exceed the current sample's
750 * boundary!
751 *
752 * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is
753 * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with
754 * other formats will fail!
755 *
756 * @param iNewSize - new sample wave data size in sample points (must be
757 * greater than zero)
758 * @throws Excecption if FormatTag != DLS_WAVE_FORMAT_PCM
759 * @throws Exception if \a iNewSize is less than 1
760 * @see File::Save(), FrameSize, FormatTag
761 */
762 void Sample::Resize(int iNewSize) {
763 if (FormatTag != DLS_WAVE_FORMAT_PCM) throw Exception("Sample's format is not DLS_WAVE_FORMAT_PCM");
764 if (iNewSize < 1) throw Exception("Sample size must be at least one sample point");
765 const int iSizeInBytes = iNewSize * FrameSize;
766 pCkData = pWaveList->GetSubChunk(CHUNK_ID_DATA);
767 if (pCkData) pCkData->Resize(iSizeInBytes);
768 else pCkData = pWaveList->AddSubChunk(CHUNK_ID_DATA, iSizeInBytes);
769 }
770
771 /**
772 * Sets the position within the sample (in sample points, not in
773 * bytes). Use this method and <i>Read()</i> if you don't want to load
774 * the sample into RAM, thus for disk streaming.
775 *
776 * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is
777 * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to reposition the sample
778 * with other formats will fail!
779 *
780 * @param SampleCount number of sample points
781 * @param Whence to which relation \a SampleCount refers to
782 * @returns new position within the sample, 0 if
783 * FormatTag != DLS_WAVE_FORMAT_PCM
784 * @throws Exception if no data RIFF chunk was created for the sample yet
785 * @see FrameSize, FormatTag
786 */
787 unsigned long Sample::SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence) {
788 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
789 if (!pCkData) throw Exception("No data chunk created for sample yet, call Sample::Resize() to create one");
790 unsigned long orderedBytes = SampleCount * FrameSize;
791 unsigned long result = pCkData->SetPos(orderedBytes, Whence);
792 return (result == orderedBytes) ? SampleCount
793 : result / FrameSize;
794 }
795
796 /**
797 * Reads \a SampleCount number of sample points from the current
798 * position into the buffer pointed by \a pBuffer and increments the
799 * position within the sample. Use this method and <i>SetPos()</i> if you
800 * don't want to load the sample into RAM, thus for disk streaming.
801 *
802 * @param pBuffer destination buffer
803 * @param SampleCount number of sample points to read
804 */
805 unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) {
806 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
807 return pCkData->Read(pBuffer, SampleCount, FrameSize); // FIXME: channel inversion due to endian correction?
808 }
809
810 /** @brief Write sample wave data.
811 *
812 * Writes \a SampleCount number of sample points from the buffer pointed
813 * by \a pBuffer and increments the position within the sample. Use this
814 * method to directly write the sample data to disk, i.e. if you don't
815 * want or cannot load the whole sample data into RAM.
816 *
817 * You have to Resize() the sample to the desired size and call
818 * File::Save() <b>before</b> using Write().
819 *
820 * @param pBuffer - source buffer
821 * @param SampleCount - number of sample points to write
822 * @throws Exception if current sample size is too small
823 * @see LoadSampleData()
824 */
825 unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) {
826 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
827 if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small");
828 return pCkData->Write(pBuffer, SampleCount, FrameSize); // FIXME: channel inversion due to endian correction?
829 }
830
831 /**
832 * Apply sample and its settings to the respective RIFF chunks. You have
833 * to call File::Save() to make changes persistent.
834 *
835 * @throws Exception if FormatTag != DLS_WAVE_FORMAT_PCM or no sample data
836 * was provided yet
837 */
838 void Sample::UpdateChunks() {
839 if (FormatTag != DLS_WAVE_FORMAT_PCM)
840 throw Exception("Could not save sample, only PCM format is supported");
841 // we refuse to do anything if not sample wave form was provided yet
842 if (!pCkData)
843 throw Exception("Could not save sample, there is no sample data to save");
844 // update chunks of base class as well
845 Resource::UpdateChunks();
846 // make sure 'fmt' chunk exists
847 RIFF::Chunk* pCkFormat = pWaveList->GetSubChunk(CHUNK_ID_FMT);
848 if (!pCkFormat) pCkFormat = pWaveList->AddSubChunk(CHUNK_ID_FMT, 16); // assumes PCM format
849 uint8_t* pData = (uint8_t*) pCkFormat->LoadChunkData();
850 // update 'fmt' chunk
851 store16(&pData[0], FormatTag);
852 store16(&pData[2], Channels);
853 store32(&pData[4], SamplesPerSecond);
854 store32(&pData[8], AverageBytesPerSecond);
855 store16(&pData[12], BlockAlign);
856 store16(&pData[14], BitDepth); // assuming PCM format
857 }
858
859
860
861 // *************** Region ***************
862 // *
863
864 Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : Resource(pInstrument, rgnList), Articulator(rgnList), Sampler(rgnList) {
865 pCkRegion = rgnList;
866
867 // articulation informations
868 RIFF::Chunk* rgnh = rgnList->GetSubChunk(CHUNK_ID_RGNH);
869 if (rgnh) {
870 rgnh->Read(&KeyRange, 2, 2);
871 rgnh->Read(&VelocityRange, 2, 2);
872 FormatOptionFlags = rgnh->ReadUint16();
873 KeyGroup = rgnh->ReadUint16();
874 // Layer is optional
875 if (rgnh->RemainingBytes() >= sizeof(uint16_t)) {
876 rgnh->Read(&Layer, 1, sizeof(uint16_t));
877 } else Layer = 0;
878 } else { // 'rgnh' chunk is missing
879 KeyRange.low = 0;
880 KeyRange.high = 127;
881 VelocityRange.low = 0;
882 VelocityRange.high = 127;
883 FormatOptionFlags = F_RGN_OPTION_SELFNONEXCLUSIVE;
884 KeyGroup = 0;
885 Layer = 0;
886 }
887 SelfNonExclusive = FormatOptionFlags & F_RGN_OPTION_SELFNONEXCLUSIVE;
888
889 // sample informations
890 RIFF::Chunk* wlnk = rgnList->GetSubChunk(CHUNK_ID_WLNK);
891 if (wlnk) {
892 WaveLinkOptionFlags = wlnk->ReadUint16();
893 PhaseGroup = wlnk->ReadUint16();
894 Channel = wlnk->ReadUint32();
895 WavePoolTableIndex = wlnk->ReadUint32();
896 } else { // 'wlnk' chunk is missing
897 WaveLinkOptionFlags = 0;
898 PhaseGroup = 0;
899 Channel = 0; // mono
900 WavePoolTableIndex = 0; // first entry in wave pool table
901 }
902 PhaseMaster = WaveLinkOptionFlags & F_WAVELINK_PHASE_MASTER;
903 MultiChannel = WaveLinkOptionFlags & F_WAVELINK_MULTICHANNEL;
904
905 pSample = NULL;
906 }
907
908 /** @brief Destructor.
909 *
910 * Removes RIFF chunks associated with this Region.
911 */
912 Region::~Region() {
913 RIFF::List* pParent = pCkRegion->GetParent();
914 pParent->DeleteSubChunk(pCkRegion);
915 }
916
917 Sample* Region::GetSample() {
918 if (pSample) return pSample;
919 File* file = (File*) GetParent()->GetParent();
920 unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex];
921 Sample* sample = file->GetFirstSample();
922 while (sample) {
923 if (sample->ulWavePoolOffset == soughtoffset) return (pSample = sample);
924 sample = file->GetNextSample();
925 }
926 return NULL;
927 }
928
929 /**
930 * Assign another sample to this Region.
931 *
932 * @param pSample - sample to be assigned
933 */
934 void Region::SetSample(Sample* pSample) {
935 this->pSample = pSample;
936 WavePoolTableIndex = 0; // we update this offset when we Save()
937 }
938
939 /**
940 * Modifies the key range of this Region and makes sure the respective
941 * chunks are in correct order.
942 *
943 * @param Low - lower end of key range
944 * @param High - upper end of key range
945 */
946 void Region::SetKeyRange(uint16_t Low, uint16_t High) {
947 KeyRange.low = Low;
948 KeyRange.high = High;
949
950 // make sure regions are already loaded
951 Instrument* pInstrument = (Instrument*) GetParent();
952 if (!pInstrument->pRegions) pInstrument->LoadRegions();
953 if (!pInstrument->pRegions) return;
954
955 // find the r which is the first one to the right of this region
956 // at its new position
957 Region* r = NULL;
958 Region* prev_region = NULL;
959 for (
960 Instrument::RegionList::iterator iter = pInstrument->pRegions->begin();
961 iter != pInstrument->pRegions->end(); iter++
962 ) {
963 if ((*iter)->KeyRange.low > this->KeyRange.low) {
964 r = *iter;
965 break;
966 }
967 prev_region = *iter;
968 }
969
970 // place this region before r if it's not already there
971 if (prev_region != this) pInstrument->MoveRegion(this, r);
972 }
973
974 /**
975 * Apply Region settings to the respective RIFF chunks. You have to
976 * call File::Save() to make changes persistent.
977 *
978 * @throws Exception - if the Region's sample could not be found
979 */
980 void Region::UpdateChunks() {
981 // make sure 'rgnh' chunk exists
982 RIFF::Chunk* rgnh = pCkRegion->GetSubChunk(CHUNK_ID_RGNH);
983 if (!rgnh) rgnh = pCkRegion->AddSubChunk(CHUNK_ID_RGNH, Layer ? 14 : 12);
984 uint8_t* pData = (uint8_t*) rgnh->LoadChunkData();
985 FormatOptionFlags = (SelfNonExclusive)
986 ? FormatOptionFlags | F_RGN_OPTION_SELFNONEXCLUSIVE
987 : FormatOptionFlags & (~F_RGN_OPTION_SELFNONEXCLUSIVE);
988 // update 'rgnh' chunk
989 store16(&pData[0], KeyRange.low);
990 store16(&pData[2], KeyRange.high);
991 store16(&pData[4], VelocityRange.low);
992 store16(&pData[6], VelocityRange.high);
993 store16(&pData[8], FormatOptionFlags);
994 store16(&pData[10], KeyGroup);
995 if (rgnh->GetSize() >= 14) store16(&pData[12], Layer);
996
997 // update chunks of base classes as well (but skip Resource,
998 // as a rgn doesn't seem to have dlid and INFO chunks)
999 Articulator::UpdateChunks();
1000 Sampler::UpdateChunks();
1001
1002 // make sure 'wlnk' chunk exists
1003 RIFF::Chunk* wlnk = pCkRegion->GetSubChunk(CHUNK_ID_WLNK);
1004 if (!wlnk) wlnk = pCkRegion->AddSubChunk(CHUNK_ID_WLNK, 12);
1005 pData = (uint8_t*) wlnk->LoadChunkData();
1006 WaveLinkOptionFlags = (PhaseMaster)
1007 ? WaveLinkOptionFlags | F_WAVELINK_PHASE_MASTER
1008 : WaveLinkOptionFlags & (~F_WAVELINK_PHASE_MASTER);
1009 WaveLinkOptionFlags = (MultiChannel)
1010 ? WaveLinkOptionFlags | F_WAVELINK_MULTICHANNEL
1011 : WaveLinkOptionFlags & (~F_WAVELINK_MULTICHANNEL);
1012 // get sample's wave pool table index
1013 int index = -1;
1014 File* pFile = (File*) GetParent()->GetParent();
1015 if (pFile->pSamples) {
1016 File::SampleList::iterator iter = pFile->pSamples->begin();
1017 File::SampleList::iterator end = pFile->pSamples->end();
1018 for (int i = 0; iter != end; ++iter, i++) {
1019 if (*iter == pSample) {
1020 index = i;
1021 break;
1022 }
1023 }
1024 }
1025 WavePoolTableIndex = index;
1026 // update 'wlnk' chunk
1027 store16(&pData[0], WaveLinkOptionFlags);
1028 store16(&pData[2], PhaseGroup);
1029 store32(&pData[4], Channel);
1030 store32(&pData[8], WavePoolTableIndex);
1031 }
1032
1033
1034
1035 // *************** Instrument ***************
1036 // *
1037
1038 /** @brief Constructor.
1039 *
1040 * Load an existing instrument definition or create a new one. An 'ins'
1041 * list chunk must be given to this constructor. In case this 'ins' list
1042 * chunk contains a 'insh' chunk, the instrument data fields will be
1043 * loaded from there, otherwise default values will be used and the
1044 * 'insh' chunk will be created once File::Save() was called.
1045 *
1046 * @param pFile - pointer to DLS::File where this instrument is
1047 * located (or will be located)
1048 * @param insList - pointer to 'ins' list chunk which is (or will be)
1049 * associated with this instrument
1050 */
1051 Instrument::Instrument(File* pFile, RIFF::List* insList) : Resource(pFile, insList), Articulator(insList) {
1052 pCkInstrument = insList;
1053
1054 midi_locale_t locale;
1055 RIFF::Chunk* insh = pCkInstrument->GetSubChunk(CHUNK_ID_INSH);
1056 if (insh) {
1057 Regions = insh->ReadUint32();
1058 insh->Read(&locale, 2, 4);
1059 } else { // 'insh' chunk missing
1060 Regions = 0;
1061 locale.bank = 0;
1062 locale.instrument = 0;
1063 }
1064
1065 MIDIProgram = locale.instrument;
1066 IsDrum = locale.bank & DRUM_TYPE_MASK;
1067 MIDIBankCoarse = (uint8_t) MIDI_BANK_COARSE(locale.bank);
1068 MIDIBankFine = (uint8_t) MIDI_BANK_FINE(locale.bank);
1069 MIDIBank = MIDI_BANK_MERGE(MIDIBankCoarse, MIDIBankFine);
1070
1071 pRegions = NULL;
1072 }
1073
1074 Region* Instrument::GetFirstRegion() {
1075 if (!pRegions) LoadRegions();
1076 if (!pRegions) return NULL;
1077 RegionsIterator = pRegions->begin();
1078 return (RegionsIterator != pRegions->end()) ? *RegionsIterator : NULL;
1079 }
1080
1081 Region* Instrument::GetNextRegion() {
1082 if (!pRegions) return NULL;
1083 RegionsIterator++;
1084 return (RegionsIterator != pRegions->end()) ? *RegionsIterator : NULL;
1085 }
1086
1087 void Instrument::LoadRegions() {
1088 if (!pRegions) pRegions = new RegionList;
1089 RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
1090 if (lrgn) {
1091 uint32_t regionCkType = (lrgn->GetSubList(LIST_TYPE_RGN2)) ? LIST_TYPE_RGN2 : LIST_TYPE_RGN; // prefer regions level 2
1092 RIFF::List* rgn = lrgn->GetFirstSubList();
1093 while (rgn) {
1094 if (rgn->GetListType() == regionCkType) {
1095 pRegions->push_back(new Region(this, rgn));
1096 }
1097 rgn = lrgn->GetNextSubList();
1098 }
1099 }
1100 }
1101
1102 Region* Instrument::AddRegion() {
1103 if (!pRegions) LoadRegions();
1104 RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
1105 if (!lrgn) lrgn = pCkInstrument->AddSubList(LIST_TYPE_LRGN);
1106 RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN);
1107 Region* pNewRegion = new Region(this, rgn);
1108 pRegions->push_back(pNewRegion);
1109 Regions = pRegions->size();
1110 return pNewRegion;
1111 }
1112
1113 void Instrument::MoveRegion(Region* pSrc, Region* pDst) {
1114 RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
1115 lrgn->MoveSubChunk(pSrc->pCkRegion, pDst ? pDst->pCkRegion : 0);
1116
1117 pRegions->remove(pSrc);
1118 RegionList::iterator iter = find(pRegions->begin(), pRegions->end(), pDst);
1119 pRegions->insert(iter, pSrc);
1120 }
1121
1122 void Instrument::DeleteRegion(Region* pRegion) {
1123 if (!pRegions) return;
1124 RegionList::iterator iter = find(pRegions->begin(), pRegions->end(), pRegion);
1125 if (iter == pRegions->end()) return;
1126 pRegions->erase(iter);
1127 Regions = pRegions->size();
1128 delete pRegion;
1129 }
1130
1131 /**
1132 * Apply Instrument with all its Regions to the respective RIFF chunks.
1133 * You have to call File::Save() to make changes persistent.
1134 *
1135 * @throws Exception - on errors
1136 */
1137 void Instrument::UpdateChunks() {
1138 // first update base classes' chunks
1139 Resource::UpdateChunks();
1140 Articulator::UpdateChunks();
1141 // make sure 'insh' chunk exists
1142 RIFF::Chunk* insh = pCkInstrument->GetSubChunk(CHUNK_ID_INSH);
1143 if (!insh) insh = pCkInstrument->AddSubChunk(CHUNK_ID_INSH, 12);
1144 uint8_t* pData = (uint8_t*) insh->LoadChunkData();
1145 // update 'insh' chunk
1146 Regions = (pRegions) ? pRegions->size() : 0;
1147 midi_locale_t locale;
1148 locale.instrument = MIDIProgram;
1149 locale.bank = MIDI_BANK_ENCODE(MIDIBankCoarse, MIDIBankFine);
1150 locale.bank = (IsDrum) ? locale.bank | DRUM_TYPE_MASK : locale.bank & (~DRUM_TYPE_MASK);
1151 MIDIBank = MIDI_BANK_MERGE(MIDIBankCoarse, MIDIBankFine); // just a sync, when we're at it
1152 store32(&pData[0], Regions);
1153 store32(&pData[4], locale.bank);
1154 store32(&pData[8], locale.instrument);
1155 // update Region's chunks
1156 if (!pRegions) return;
1157 RegionList::iterator iter = pRegions->begin();
1158 RegionList::iterator end = pRegions->end();
1159 for (; iter != end; ++iter) {
1160 (*iter)->UpdateChunks();
1161 }
1162 }
1163
1164 /** @brief Destructor.
1165 *
1166 * Removes RIFF chunks associated with this Instrument and frees all
1167 * memory occupied by this instrument.
1168 */
1169 Instrument::~Instrument() {
1170 if (pRegions) {
1171 RegionList::iterator iter = pRegions->begin();
1172 RegionList::iterator end = pRegions->end();
1173 while (iter != end) {
1174 delete *iter;
1175 iter++;
1176 }
1177 delete pRegions;
1178 }
1179 // remove instrument's chunks
1180 RIFF::List* pParent = pCkInstrument->GetParent();
1181 pParent->DeleteSubChunk(pCkInstrument);
1182 }
1183
1184
1185
1186 // *************** File ***************
1187 // *
1188
1189 /** @brief Constructor.
1190 *
1191 * Default constructor, use this to create an empty DLS file. You have
1192 * to add samples, instruments and finally call Save() to actually write
1193 * a DLS file.
1194 */
1195 File::File() : Resource(NULL, pRIFF = new RIFF::File(RIFF_TYPE_DLS)) {
1196 pRIFF->SetByteOrder(RIFF::endian_little);
1197 pVersion = new version_t;
1198 pVersion->major = 0;
1199 pVersion->minor = 0;
1200 pVersion->release = 0;
1201 pVersion->build = 0;
1202
1203 Instruments = 0;
1204 WavePoolCount = 0;
1205 pWavePoolTable = NULL;
1206 pWavePoolTableHi = NULL;
1207 WavePoolHeaderSize = 8;
1208
1209 pSamples = NULL;
1210 pInstruments = NULL;
1211
1212 b64BitWavePoolOffsets = false;
1213 }
1214
1215 /** @brief Constructor.
1216 *
1217 * Load an existing DLS file.
1218 *
1219 * @param pRIFF - pointer to a RIFF file which is actually the DLS file
1220 * to load
1221 * @throws Exception if given file is not a DLS file, expected chunks
1222 * are missing
1223 */
1224 File::File(RIFF::File* pRIFF) : Resource(NULL, pRIFF) {
1225 if (!pRIFF) throw DLS::Exception("NULL pointer reference to RIFF::File object.");
1226 this->pRIFF = pRIFF;
1227
1228 RIFF::Chunk* ckVersion = pRIFF->GetSubChunk(CHUNK_ID_VERS);
1229 if (ckVersion) {
1230 pVersion = new version_t;
1231 ckVersion->Read(pVersion, 4, 2);
1232 }
1233 else pVersion = NULL;
1234
1235 RIFF::Chunk* colh = pRIFF->GetSubChunk(CHUNK_ID_COLH);
1236 if (!colh) throw DLS::Exception("Mandatory chunks in RIFF list chunk not found.");
1237 Instruments = colh->ReadUint32();
1238
1239 RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1240 if (!ptbl) { // pool table is missing - this is probably an ".art" file
1241 WavePoolCount = 0;
1242 pWavePoolTable = NULL;
1243 pWavePoolTableHi = NULL;
1244 WavePoolHeaderSize = 8;
1245 b64BitWavePoolOffsets = false;
1246 } else {
1247 WavePoolHeaderSize = ptbl->ReadUint32();
1248 WavePoolCount = ptbl->ReadUint32();
1249 pWavePoolTable = new uint32_t[WavePoolCount];
1250 pWavePoolTableHi = new uint32_t[WavePoolCount];
1251 ptbl->SetPos(WavePoolHeaderSize);
1252
1253 // Check for 64 bit offsets (used in gig v3 files)
1254 b64BitWavePoolOffsets = (ptbl->GetSize() - WavePoolHeaderSize == WavePoolCount * 8);
1255 if (b64BitWavePoolOffsets) {
1256 for (int i = 0 ; i < WavePoolCount ; i++) {
1257 pWavePoolTableHi[i] = ptbl->ReadUint32();
1258 pWavePoolTable[i] = ptbl->ReadUint32();
1259 if (pWavePoolTable[i] & 0x80000000)
1260 throw DLS::Exception("Files larger than 2 GB not yet supported");
1261 }
1262 } else { // conventional 32 bit offsets
1263 ptbl->Read(pWavePoolTable, WavePoolCount, sizeof(uint32_t));
1264 for (int i = 0 ; i < WavePoolCount ; i++) pWavePoolTableHi[i] = 0;
1265 }
1266 }
1267
1268 pSamples = NULL;
1269 pInstruments = NULL;
1270 }
1271
1272 File::~File() {
1273 if (pInstruments) {
1274 InstrumentList::iterator iter = pInstruments->begin();
1275 InstrumentList::iterator end = pInstruments->end();
1276 while (iter != end) {
1277 delete *iter;
1278 iter++;
1279 }
1280 delete pInstruments;
1281 }
1282
1283 if (pSamples) {
1284 SampleList::iterator iter = pSamples->begin();
1285 SampleList::iterator end = pSamples->end();
1286 while (iter != end) {
1287 delete *iter;
1288 iter++;
1289 }
1290 delete pSamples;
1291 }
1292
1293 if (pWavePoolTable) delete[] pWavePoolTable;
1294 if (pWavePoolTableHi) delete[] pWavePoolTableHi;
1295 if (pVersion) delete pVersion;
1296 for (std::list<RIFF::File*>::iterator i = ExtensionFiles.begin() ; i != ExtensionFiles.end() ; i++)
1297 delete *i;
1298 }
1299
1300 Sample* File::GetFirstSample() {
1301 if (!pSamples) LoadSamples();
1302 if (!pSamples) return NULL;
1303 SamplesIterator = pSamples->begin();
1304 return (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL;
1305 }
1306
1307 Sample* File::GetNextSample() {
1308 if (!pSamples) return NULL;
1309 SamplesIterator++;
1310 return (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL;
1311 }
1312
1313 void File::LoadSamples() {
1314 if (!pSamples) pSamples = new SampleList;
1315 RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1316 if (wvpl) {
1317 unsigned long wvplFileOffset = wvpl->GetFilePos();
1318 RIFF::List* wave = wvpl->GetFirstSubList();
1319 while (wave) {
1320 if (wave->GetListType() == LIST_TYPE_WAVE) {
1321 unsigned long waveFileOffset = wave->GetFilePos();
1322 pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset));
1323 }
1324 wave = wvpl->GetNextSubList();
1325 }
1326 }
1327 else { // Seen a dwpl list chunk instead of a wvpl list chunk in some file (officially not DLS compliant)
1328 RIFF::List* dwpl = pRIFF->GetSubList(LIST_TYPE_DWPL);
1329 if (dwpl) {
1330 unsigned long dwplFileOffset = dwpl->GetFilePos();
1331 RIFF::List* wave = dwpl->GetFirstSubList();
1332 while (wave) {
1333 if (wave->GetListType() == LIST_TYPE_WAVE) {
1334 unsigned long waveFileOffset = wave->GetFilePos();
1335 pSamples->push_back(new Sample(this, wave, waveFileOffset - dwplFileOffset));
1336 }
1337 wave = dwpl->GetNextSubList();
1338 }
1339 }
1340 }
1341 }
1342
1343 /** @brief Add a new sample.
1344 *
1345 * This will create a new Sample object for the DLS file. You have to
1346 * call Save() to make this persistent to the file.
1347 *
1348 * @returns pointer to new Sample object
1349 */
1350 Sample* File::AddSample() {
1351 if (!pSamples) LoadSamples();
1352 __ensureMandatoryChunksExist();
1353 RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1354 // create new Sample object and its respective 'wave' list chunk
1355 RIFF::List* wave = wvpl->AddSubList(LIST_TYPE_WAVE);
1356 Sample* pSample = new Sample(this, wave, 0 /*arbitrary value, we update offsets when we save*/);
1357 pSamples->push_back(pSample);
1358 return pSample;
1359 }
1360
1361 /** @brief Delete a sample.
1362 *
1363 * This will delete the given Sample object from the DLS file. You have
1364 * to call Save() to make this persistent to the file.
1365 *
1366 * @param pSample - sample to delete
1367 */
1368 void File::DeleteSample(Sample* pSample) {
1369 if (!pSamples) return;
1370 SampleList::iterator iter = find(pSamples->begin(), pSamples->end(), pSample);
1371 if (iter == pSamples->end()) return;
1372 pSamples->erase(iter);
1373 delete pSample;
1374 }
1375
1376 Instrument* File::GetFirstInstrument() {
1377 if (!pInstruments) LoadInstruments();
1378 if (!pInstruments) return NULL;
1379 InstrumentsIterator = pInstruments->begin();
1380 return (InstrumentsIterator != pInstruments->end()) ? *InstrumentsIterator : NULL;
1381 }
1382
1383 Instrument* File::GetNextInstrument() {
1384 if (!pInstruments) return NULL;
1385 InstrumentsIterator++;
1386 return (InstrumentsIterator != pInstruments->end()) ? *InstrumentsIterator : NULL;
1387 }
1388
1389 void File::LoadInstruments() {
1390 if (!pInstruments) pInstruments = new InstrumentList;
1391 RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1392 if (lstInstruments) {
1393 RIFF::List* lstInstr = lstInstruments->GetFirstSubList();
1394 while (lstInstr) {
1395 if (lstInstr->GetListType() == LIST_TYPE_INS) {
1396 pInstruments->push_back(new Instrument(this, lstInstr));
1397 }
1398 lstInstr = lstInstruments->GetNextSubList();
1399 }
1400 }
1401 }
1402
1403 /** @brief Add a new instrument definition.
1404 *
1405 * This will create a new Instrument object for the DLS file. You have
1406 * to call Save() to make this persistent to the file.
1407 *
1408 * @returns pointer to new Instrument object
1409 */
1410 Instrument* File::AddInstrument() {
1411 if (!pInstruments) LoadInstruments();
1412 __ensureMandatoryChunksExist();
1413 RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1414 RIFF::List* lstInstr = lstInstruments->AddSubList(LIST_TYPE_INS);
1415 Instrument* pInstrument = new Instrument(this, lstInstr);
1416 pInstruments->push_back(pInstrument);
1417 return pInstrument;
1418 }
1419
1420 /** @brief Delete an instrument.
1421 *
1422 * This will delete the given Instrument object from the DLS file. You
1423 * have to call Save() to make this persistent to the file.
1424 *
1425 * @param pInstrument - instrument to delete
1426 */
1427 void File::DeleteInstrument(Instrument* pInstrument) {
1428 if (!pInstruments) return;
1429 InstrumentList::iterator iter = find(pInstruments->begin(), pInstruments->end(), pInstrument);
1430 if (iter == pInstruments->end()) return;
1431 pInstruments->erase(iter);
1432 delete pInstrument;
1433 }
1434
1435 /**
1436 * Returns extension file of given index. Extension files are used
1437 * sometimes to circumvent the 2 GB file size limit of the RIFF format and
1438 * of certain operating systems in general. In this case, instead of just
1439 * using one file, the content is spread among several files with similar
1440 * file name scheme. This is especially used by some GigaStudio sound
1441 * libraries.
1442 *
1443 * @param index - index of extension file
1444 * @returns sought extension file, NULL if index out of bounds
1445 * @see GetFileName()
1446 */
1447 RIFF::File* File::GetExtensionFile(int index) {
1448 if (index < 0 || index >= ExtensionFiles.size()) return NULL;
1449 std::list<RIFF::File*>::iterator iter = ExtensionFiles.begin();
1450 for (int i = 0; iter != ExtensionFiles.end(); ++iter, ++i)
1451 if (i == index) return *iter;
1452 return NULL;
1453 }
1454
1455 /** @brief File name of this DLS file.
1456 *
1457 * This method returns the file name as it was provided when loading
1458 * the respective DLS file. However in case the File object associates
1459 * an empty, that is new DLS file, which was not yet saved to disk,
1460 * this method will return an empty string.
1461 *
1462 * @see GetExtensionFile()
1463 */
1464 String File::GetFileName() {
1465 return pRIFF->GetFileName();
1466 }
1467
1468 /**
1469 * Apply all the DLS file's current instruments, samples and settings to
1470 * the respective RIFF chunks. You have to call Save() to make changes
1471 * persistent.
1472 *
1473 * @throws Exception - on errors
1474 */
1475 void File::UpdateChunks() {
1476 // first update base class's chunks
1477 Resource::UpdateChunks();
1478
1479 // if version struct exists, update 'vers' chunk
1480 if (pVersion) {
1481 RIFF::Chunk* ckVersion = pRIFF->GetSubChunk(CHUNK_ID_VERS);
1482 if (!ckVersion) ckVersion = pRIFF->AddSubChunk(CHUNK_ID_VERS, 8);
1483 uint8_t* pData = (uint8_t*) ckVersion->LoadChunkData();
1484 store16(&pData[0], pVersion->minor);
1485 store16(&pData[2], pVersion->major);
1486 store16(&pData[4], pVersion->build);
1487 store16(&pData[6], pVersion->release);
1488 }
1489
1490 // update 'colh' chunk
1491 Instruments = (pInstruments) ? pInstruments->size() : 0;
1492 RIFF::Chunk* colh = pRIFF->GetSubChunk(CHUNK_ID_COLH);
1493 if (!colh) colh = pRIFF->AddSubChunk(CHUNK_ID_COLH, 4);
1494 uint8_t* pData = (uint8_t*) colh->LoadChunkData();
1495 store32(pData, Instruments);
1496
1497 // update instrument's chunks
1498 if (pInstruments) {
1499 InstrumentList::iterator iter = pInstruments->begin();
1500 InstrumentList::iterator end = pInstruments->end();
1501 for (; iter != end; ++iter) {
1502 (*iter)->UpdateChunks();
1503 }
1504 }
1505
1506 // update 'ptbl' chunk
1507 const int iSamples = (pSamples) ? pSamples->size() : 0;
1508 const int iPtblOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1509 RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1510 if (!ptbl) ptbl = pRIFF->AddSubChunk(CHUNK_ID_PTBL, 1 /*anything, we'll resize*/);
1511 const int iPtblSize = WavePoolHeaderSize + iPtblOffsetSize * iSamples;
1512 ptbl->Resize(iPtblSize);
1513 pData = (uint8_t*) ptbl->LoadChunkData();
1514 WavePoolCount = iSamples;
1515 store32(&pData[4], WavePoolCount);
1516 // we actually update the sample offsets in the pool table when we Save()
1517 memset(&pData[WavePoolHeaderSize], 0, iPtblSize - WavePoolHeaderSize);
1518
1519 // update sample's chunks
1520 if (pSamples) {
1521 SampleList::iterator iter = pSamples->begin();
1522 SampleList::iterator end = pSamples->end();
1523 for (; iter != end; ++iter) {
1524 (*iter)->UpdateChunks();
1525 }
1526 }
1527 }
1528
1529 /** @brief Save changes to another file.
1530 *
1531 * Make all changes persistent by writing them to another file.
1532 * <b>Caution:</b> this method is optimized for writing to
1533 * <b>another</b> file, do not use it to save the changes to the same
1534 * file! Use Save() (without path argument) in that case instead!
1535 * Ignoring this might result in a corrupted file!
1536 *
1537 * After calling this method, this File object will be associated with
1538 * the new file (given by \a Path) afterwards.
1539 *
1540 * @param Path - path and file name where everything should be written to
1541 */
1542 void File::Save(const String& Path) {
1543 UpdateChunks();
1544 pRIFF->Save(Path);
1545 __UpdateWavePoolTableChunk();
1546 }
1547
1548 /** @brief Save changes to same file.
1549 *
1550 * Make all changes persistent by writing them to the actual (same)
1551 * file. The file might temporarily grow to a higher size than it will
1552 * have at the end of the saving process.
1553 *
1554 * @throws RIFF::Exception if any kind of IO error occured
1555 * @throws DLS::Exception if any kind of DLS specific error occured
1556 */
1557 void File::Save() {
1558 UpdateChunks();
1559 pRIFF->Save();
1560 __UpdateWavePoolTableChunk();
1561 }
1562
1563 /**
1564 * Checks if all (for DLS) mandatory chunks exist, if not they will be
1565 * created. Note that those chunks will not be made persistent until
1566 * Save() was called.
1567 */
1568 void File::__ensureMandatoryChunksExist() {
1569 // enusre 'lins' list chunk exists (mandatory for instrument definitions)
1570 RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1571 if (!lstInstruments) pRIFF->AddSubList(LIST_TYPE_LINS);
1572 // ensure 'ptbl' chunk exists (mandatory for samples)
1573 RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1574 if (!ptbl) {
1575 const int iOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1576 ptbl = pRIFF->AddSubChunk(CHUNK_ID_PTBL, WavePoolHeaderSize + iOffsetSize);
1577 }
1578 // enusre 'wvpl' list chunk exists (mandatory for samples)
1579 RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1580 if (!wvpl) pRIFF->AddSubList(LIST_TYPE_WVPL);
1581 }
1582
1583 /**
1584 * Updates (persistently) the wave pool table with offsets to all
1585 * currently available samples. <b>Caution:</b> this method assumes the
1586 * 'ptbl' chunk to be already of the correct size and the file to be
1587 * writable, so usually this method is only called after a Save() call.
1588 *
1589 * @throws Exception - if 'ptbl' chunk is too small (should only occur
1590 * if there's a bug)
1591 */
1592 void File::__UpdateWavePoolTableChunk() {
1593 __UpdateWavePoolTable();
1594 RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1595 const int iOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1596 // check if 'ptbl' chunk is large enough
1597 WavePoolCount = (pSamples) ? pSamples->size() : 0;
1598 const unsigned long ulRequiredSize = WavePoolHeaderSize + iOffsetSize * WavePoolCount;
1599 if (ptbl->GetSize() < ulRequiredSize) throw Exception("Fatal error, 'ptbl' chunk too small");
1600 // save the 'ptbl' chunk's current read/write position
1601 unsigned long ulOriginalPos = ptbl->GetPos();
1602 // update headers
1603 ptbl->SetPos(0);
1604 uint32_t tmp = WavePoolHeaderSize;
1605 ptbl->WriteUint32(&tmp);
1606 tmp = WavePoolCount;
1607 ptbl->WriteUint32(&tmp);
1608 // update offsets
1609 ptbl->SetPos(WavePoolHeaderSize);
1610 if (b64BitWavePoolOffsets) {
1611 for (int i = 0 ; i < WavePoolCount ; i++) {
1612 tmp = pWavePoolTableHi[i];
1613 ptbl->WriteUint32(&tmp);
1614 tmp = pWavePoolTable[i];
1615 ptbl->WriteUint32(&tmp);
1616 }
1617 } else { // conventional 32 bit offsets
1618 for (int i = 0 ; i < WavePoolCount ; i++) {
1619 tmp = pWavePoolTable[i];
1620 ptbl->WriteUint32(&tmp);
1621 }
1622 }
1623 // restore 'ptbl' chunk's original read/write position
1624 ptbl->SetPos(ulOriginalPos);
1625 }
1626
1627 /**
1628 * Updates the wave pool table with offsets to all currently available
1629 * samples. <b>Caution:</b> this method assumes the 'wvpl' list chunk
1630 * exists already.
1631 */
1632 void File::__UpdateWavePoolTable() {
1633 WavePoolCount = (pSamples) ? pSamples->size() : 0;
1634 // resize wave pool table arrays
1635 if (pWavePoolTable) delete[] pWavePoolTable;
1636 if (pWavePoolTableHi) delete[] pWavePoolTableHi;
1637 pWavePoolTable = new uint32_t[WavePoolCount];
1638 pWavePoolTableHi = new uint32_t[WavePoolCount];
1639 if (!pSamples) return;
1640 // update offsets int wave pool table
1641 RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1642 uint64_t wvplFileOffset = wvpl->GetFilePos();
1643 if (b64BitWavePoolOffsets) {
1644 SampleList::iterator iter = pSamples->begin();
1645 SampleList::iterator end = pSamples->end();
1646 for (int i = 0 ; iter != end ; ++iter, i++) {
1647 uint64_t _64BitOffset = (*iter)->pWaveList->GetFilePos() - wvplFileOffset - LIST_HEADER_SIZE;
1648 (*iter)->ulWavePoolOffset = _64BitOffset;
1649 pWavePoolTableHi[i] = (uint32_t) (_64BitOffset >> 32);
1650 pWavePoolTable[i] = (uint32_t) _64BitOffset;
1651 }
1652 } else { // conventional 32 bit offsets
1653 SampleList::iterator iter = pSamples->begin();
1654 SampleList::iterator end = pSamples->end();
1655 for (int i = 0 ; iter != end ; ++iter, i++) {
1656 uint64_t _64BitOffset = (*iter)->pWaveList->GetFilePos() - wvplFileOffset - LIST_HEADER_SIZE;
1657 (*iter)->ulWavePoolOffset = _64BitOffset;
1658 pWavePoolTable[i] = (uint32_t) _64BitOffset;
1659 }
1660 }
1661 }
1662
1663
1664
1665 // *************** Exception ***************
1666 // *
1667
1668 Exception::Exception(String Message) : RIFF::Exception(Message) {
1669 }
1670
1671 void Exception::PrintMessage() {
1672 std::cout << "DLS::Exception: " << Message << std::endl;
1673 }
1674
1675
1676 // *************** functions ***************
1677 // *
1678
1679 /**
1680 * Returns the name of this C++ library. This is usually "libgig" of
1681 * course. This call is equivalent to RIFF::libraryName() and
1682 * gig::libraryName().
1683 */
1684 String libraryName() {
1685 return PACKAGE;
1686 }
1687
1688 /**
1689 * Returns version of this C++ library. This call is equivalent to
1690 * RIFF::libraryVersion() and gig::libraryVersion().
1691 */
1692 String libraryVersion() {
1693 return VERSION;
1694 }
1695
1696 } // namespace DLS

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