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

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Revision 1154 - (hide annotations) (download)
Wed Apr 11 16:33:56 2007 UTC (16 years, 11 months ago) by schoenebeck
File size: 63023 byte(s)
* src/DLS.cpp, src/DLS.h:
  - added Sampler::AddSampleLoop() and Sampler::DeleteSampleLoop() methods

1 schoenebeck 2 /***************************************************************************
2     * *
3 schoenebeck 933 * libgig - C++ cross-platform Gigasampler format file access library *
4 schoenebeck 2 * *
5 schoenebeck 1050 * Copyright (C) 2003-2007 by Christian Schoenebeck *
6 schoenebeck 384 * <cuse@users.sourceforge.net> *
7 schoenebeck 2 * *
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 schoenebeck 800 #include <time.h>
27    
28     #include "helper.h"
29    
30     // macros to decode connection transforms
31     #define CONN_TRANSFORM_SRC(x) ((x >> 10) & 0x000F)
32     #define CONN_TRANSFORM_CTL(x) ((x >> 4) & 0x000F)
33     #define CONN_TRANSFORM_DST(x) (x & 0x000F)
34     #define CONN_TRANSFORM_BIPOLAR_SRC(x) (x & 0x4000)
35     #define CONN_TRANSFORM_BIPOLAR_CTL(x) (x & 0x0100)
36     #define CONN_TRANSFORM_INVERT_SRC(x) (x & 0x8000)
37     #define CONN_TRANSFORM_INVERT_CTL(x) (x & 0x0200)
38    
39     // macros to encode connection transforms
40     #define CONN_TRANSFORM_SRC_ENCODE(x) ((x & 0x000F) << 10)
41     #define CONN_TRANSFORM_CTL_ENCODE(x) ((x & 0x000F) << 4)
42     #define CONN_TRANSFORM_DST_ENCODE(x) (x & 0x000F)
43     #define CONN_TRANSFORM_BIPOLAR_SRC_ENCODE(x) ((x) ? 0x4000 : 0)
44     #define CONN_TRANSFORM_BIPOLAR_CTL_ENCODE(x) ((x) ? 0x0100 : 0)
45     #define CONN_TRANSFORM_INVERT_SRC_ENCODE(x) ((x) ? 0x8000 : 0)
46     #define CONN_TRANSFORM_INVERT_CTL_ENCODE(x) ((x) ? 0x0200 : 0)
47    
48 persson 918 #define DRUM_TYPE_MASK 0x80000000
49 schoenebeck 800
50     #define F_RGN_OPTION_SELFNONEXCLUSIVE 0x0001
51    
52     #define F_WAVELINK_PHASE_MASTER 0x0001
53     #define F_WAVELINK_MULTICHANNEL 0x0002
54    
55     #define F_WSMP_NO_TRUNCATION 0x0001
56     #define F_WSMP_NO_COMPRESSION 0x0002
57    
58     #define MIDI_BANK_COARSE(x) ((x & 0x00007F00) >> 8) // CC0
59     #define MIDI_BANK_FINE(x) (x & 0x0000007F) // CC32
60     #define MIDI_BANK_MERGE(coarse, fine) ((((uint16_t) coarse) << 7) | fine) // CC0 + CC32
61     #define MIDI_BANK_ENCODE(coarse, fine) (((coarse & 0x0000007F) << 8) | (fine & 0x0000007F))
62    
63 schoenebeck 2 namespace DLS {
64    
65     // *************** Connection ***************
66     // *
67    
68     void Connection::Init(conn_block_t* Header) {
69     Source = (conn_src_t) Header->source;
70     Control = (conn_src_t) Header->control;
71     Destination = (conn_dst_t) Header->destination;
72     Scale = Header->scale;
73     SourceTransform = (conn_trn_t) CONN_TRANSFORM_SRC(Header->transform);
74     ControlTransform = (conn_trn_t) CONN_TRANSFORM_CTL(Header->transform);
75     DestinationTransform = (conn_trn_t) CONN_TRANSFORM_DST(Header->transform);
76     SourceInvert = CONN_TRANSFORM_INVERT_SRC(Header->transform);
77     SourceBipolar = CONN_TRANSFORM_BIPOLAR_SRC(Header->transform);
78     ControlInvert = CONN_TRANSFORM_INVERT_CTL(Header->transform);
79     ControlBipolar = CONN_TRANSFORM_BIPOLAR_CTL(Header->transform);
80     }
81    
82 schoenebeck 800 Connection::conn_block_t Connection::ToConnBlock() {
83     conn_block_t c;
84     c.source = Source;
85     c.control = Control;
86     c.destination = Destination;
87     c.scale = Scale;
88     c.transform = CONN_TRANSFORM_SRC_ENCODE(SourceTransform) |
89     CONN_TRANSFORM_CTL_ENCODE(ControlTransform) |
90     CONN_TRANSFORM_DST_ENCODE(DestinationTransform) |
91     CONN_TRANSFORM_INVERT_SRC_ENCODE(SourceInvert) |
92     CONN_TRANSFORM_BIPOLAR_SRC_ENCODE(SourceBipolar) |
93     CONN_TRANSFORM_INVERT_CTL_ENCODE(ControlInvert) |
94     CONN_TRANSFORM_BIPOLAR_CTL_ENCODE(ControlBipolar);
95     return c;
96     }
97 schoenebeck 2
98    
99 schoenebeck 800
100 schoenebeck 2 // *************** Articulation ***************
101     // *
102    
103 schoenebeck 800 /** @brief Constructor.
104     *
105     * Expects an 'artl' or 'art2' chunk to be given where the articulation
106     * connections will be read from.
107     *
108     * @param artl - pointer to an 'artl' or 'art2' chunk
109     * @throws Exception if no 'artl' or 'art2' chunk was given
110     */
111     Articulation::Articulation(RIFF::Chunk* artl) {
112     pArticulationCk = artl;
113     if (artl->GetChunkID() != CHUNK_ID_ART2 &&
114     artl->GetChunkID() != CHUNK_ID_ARTL) {
115     throw DLS::Exception("<artl-ck> or <art2-ck> chunk expected");
116 schoenebeck 2 }
117 schoenebeck 800 HeaderSize = artl->ReadUint32();
118     Connections = artl->ReadUint32();
119     artl->SetPos(HeaderSize);
120 schoenebeck 2
121     pConnections = new Connection[Connections];
122     Connection::conn_block_t connblock;
123 schoenebeck 800 for (uint32_t i = 0; i < Connections; i++) {
124     artl->Read(&connblock.source, 1, 2);
125     artl->Read(&connblock.control, 1, 2);
126     artl->Read(&connblock.destination, 1, 2);
127     artl->Read(&connblock.transform, 1, 2);
128     artl->Read(&connblock.scale, 1, 4);
129 schoenebeck 2 pConnections[i].Init(&connblock);
130     }
131     }
132    
133     Articulation::~Articulation() {
134     if (pConnections) delete[] pConnections;
135     }
136    
137 schoenebeck 800 /**
138     * Apply articulation connections to the respective RIFF chunks. You
139     * have to call File::Save() to make changes persistent.
140     */
141     void Articulation::UpdateChunks() {
142     const int iEntrySize = 12; // 12 bytes per connection block
143     pArticulationCk->Resize(HeaderSize + Connections * iEntrySize);
144     uint8_t* pData = (uint8_t*) pArticulationCk->LoadChunkData();
145 persson 918 memcpy(&pData[0], &HeaderSize, 2);
146     memcpy(&pData[2], &Connections, 2);
147 schoenebeck 800 for (uint32_t i = 0; i < Connections; i++) {
148     Connection::conn_block_t c = pConnections[i].ToConnBlock();
149 persson 918 memcpy(&pData[HeaderSize + i * iEntrySize], &c.source, 2);
150     memcpy(&pData[HeaderSize + i * iEntrySize + 2], &c.control, 2);
151     memcpy(&pData[HeaderSize + i * iEntrySize + 4], &c.destination, 2);
152     memcpy(&pData[HeaderSize + i * iEntrySize + 6], &c.transform, 2);
153     memcpy(&pData[HeaderSize + i * iEntrySize + 8], &c.scale, 4);
154 schoenebeck 800 }
155     }
156 schoenebeck 2
157    
158 schoenebeck 800
159 schoenebeck 2 // *************** Articulator ***************
160     // *
161    
162     Articulator::Articulator(RIFF::List* ParentList) {
163     pParentList = ParentList;
164     pArticulations = NULL;
165     }
166    
167     Articulation* Articulator::GetFirstArticulation() {
168     if (!pArticulations) LoadArticulations();
169     if (!pArticulations) return NULL;
170     ArticulationsIterator = pArticulations->begin();
171     return (ArticulationsIterator != pArticulations->end()) ? *ArticulationsIterator : NULL;
172     }
173    
174     Articulation* Articulator::GetNextArticulation() {
175     if (!pArticulations) return NULL;
176     ArticulationsIterator++;
177     return (ArticulationsIterator != pArticulations->end()) ? *ArticulationsIterator : NULL;
178     }
179    
180     void Articulator::LoadArticulations() {
181     // prefer articulation level 2
182     RIFF::List* lart = pParentList->GetSubList(LIST_TYPE_LAR2);
183     if (!lart) lart = pParentList->GetSubList(LIST_TYPE_LART);
184     if (lart) {
185 schoenebeck 800 uint32_t artCkType = (lart->GetListType() == LIST_TYPE_LAR2) ? CHUNK_ID_ART2
186     : CHUNK_ID_ARTL;
187     RIFF::Chunk* art = lart->GetFirstSubChunk();
188 schoenebeck 2 while (art) {
189 schoenebeck 800 if (art->GetChunkID() == artCkType) {
190 schoenebeck 2 if (!pArticulations) pArticulations = new ArticulationList;
191     pArticulations->push_back(new Articulation(art));
192     }
193 schoenebeck 800 art = lart->GetNextSubChunk();
194 schoenebeck 2 }
195     }
196     }
197    
198     Articulator::~Articulator() {
199     if (pArticulations) {
200     ArticulationList::iterator iter = pArticulations->begin();
201     ArticulationList::iterator end = pArticulations->end();
202     while (iter != end) {
203     delete *iter;
204     iter++;
205     }
206     delete pArticulations;
207     }
208     }
209    
210 schoenebeck 800 /**
211     * Apply all articulations to the respective RIFF chunks. You have to
212     * call File::Save() to make changes persistent.
213     */
214     void Articulator::UpdateChunks() {
215 schoenebeck 804 if (pArticulations) {
216     ArticulationList::iterator iter = pArticulations->begin();
217     ArticulationList::iterator end = pArticulations->end();
218     for (; iter != end; ++iter) {
219     (*iter)->UpdateChunks();
220     }
221 schoenebeck 800 }
222     }
223 schoenebeck 2
224    
225 schoenebeck 800
226 schoenebeck 2 // *************** Info ***************
227     // *
228    
229 schoenebeck 800 /** @brief Constructor.
230     *
231 schoenebeck 929 * Initializes the info strings with values provided by an INFO list chunk.
232 schoenebeck 800 *
233 schoenebeck 929 * @param list - pointer to a list chunk which contains an INFO list chunk
234 schoenebeck 800 */
235 schoenebeck 2 Info::Info(RIFF::List* list) {
236 persson 918 UseFixedLengthStrings = false;
237 schoenebeck 800 pResourceListChunk = list;
238 schoenebeck 2 if (list) {
239     RIFF::List* lstINFO = list->GetSubList(LIST_TYPE_INFO);
240     if (lstINFO) {
241     LoadString(CHUNK_ID_INAM, lstINFO, Name);
242     LoadString(CHUNK_ID_IARL, lstINFO, ArchivalLocation);
243     LoadString(CHUNK_ID_ICRD, lstINFO, CreationDate);
244     LoadString(CHUNK_ID_ICMT, lstINFO, Comments);
245     LoadString(CHUNK_ID_IPRD, lstINFO, Product);
246     LoadString(CHUNK_ID_ICOP, lstINFO, Copyright);
247     LoadString(CHUNK_ID_IART, lstINFO, Artists);
248     LoadString(CHUNK_ID_IGNR, lstINFO, Genre);
249     LoadString(CHUNK_ID_IKEY, lstINFO, Keywords);
250     LoadString(CHUNK_ID_IENG, lstINFO, Engineer);
251     LoadString(CHUNK_ID_ITCH, lstINFO, Technician);
252     LoadString(CHUNK_ID_ISFT, lstINFO, Software);
253     LoadString(CHUNK_ID_IMED, lstINFO, Medium);
254     LoadString(CHUNK_ID_ISRC, lstINFO, Source);
255     LoadString(CHUNK_ID_ISRF, lstINFO, SourceForm);
256     LoadString(CHUNK_ID_ICMS, lstINFO, Commissioned);
257 persson 928 LoadString(CHUNK_ID_ISBJ, lstINFO, Subject);
258 schoenebeck 2 }
259     }
260     }
261    
262 schoenebeck 823 Info::~Info() {
263     }
264    
265 schoenebeck 800 /** @brief Load given INFO field.
266     *
267     * Load INFO field from INFO chunk with chunk ID \a ChunkID from INFO
268     * list chunk \a lstINFO and save value to \a s.
269     */
270     void Info::LoadString(uint32_t ChunkID, RIFF::List* lstINFO, String& s) {
271     RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID);
272 schoenebeck 929 ::LoadString(ck, s); // function from helper.h
273 schoenebeck 800 }
274 schoenebeck 2
275 schoenebeck 800 /** @brief Apply given INFO field to the respective chunk.
276     *
277     * Apply given info value to info chunk with ID \a ChunkID, which is a
278     * subchunk of INFO list chunk \a lstINFO. If the given chunk already
279 schoenebeck 804 * exists, value \a s will be applied. Otherwise if it doesn't exist yet
280     * and either \a s or \a sDefault is not an empty string, such a chunk
281     * will be created and either \a s or \a sDefault will be applied
282     * (depending on which one is not an empty string, if both are not an
283     * empty string \a s will be preferred).
284 schoenebeck 800 *
285     * @param ChunkID - 32 bit RIFF chunk ID of INFO subchunk
286     * @param lstINFO - parent (INFO) RIFF list chunk
287     * @param s - current value of info field
288     * @param sDefault - default value
289 schoenebeck 929 * @param bUseFixedLengthStrings - should a specific string size be forced in the chunk?
290     * @param size - wanted size of the INFO chunk. This is ignored if bUseFixedLengthStrings is false.
291 schoenebeck 800 */
292 schoenebeck 929 void Info::SaveString(uint32_t ChunkID, RIFF::List* lstINFO, const String& s, const String& sDefault, bool bUseFixedLengthStrings, int size) {
293 schoenebeck 800 RIFF::Chunk* ck = lstINFO->GetSubChunk(ChunkID);
294 schoenebeck 929 ::SaveString(ChunkID, ck, lstINFO, s, sDefault, bUseFixedLengthStrings, size); // function from helper.h
295 schoenebeck 800 }
296 schoenebeck 2
297 schoenebeck 800 /** @brief Update chunks with current info values.
298     *
299     * Apply current INFO field values to the respective INFO chunks. You
300     * have to call File::Save() to make changes persistent.
301     */
302     void Info::UpdateChunks() {
303     if (!pResourceListChunk) return;
304    
305     // make sure INFO list chunk exists
306     RIFF::List* lstINFO = pResourceListChunk->GetSubList(LIST_TYPE_INFO);
307    
308 persson 918 String defaultName = "";
309     String defaultCreationDate = "";
310     String defaultSoftware = "";
311     String defaultComments = "";
312 schoenebeck 800
313 persson 918 uint32_t resourceType = pResourceListChunk->GetListType();
314    
315     if (!lstINFO) {
316     lstINFO = pResourceListChunk->AddSubList(LIST_TYPE_INFO);
317    
318     // assemble default values
319     defaultName = "NONAME";
320    
321     if (resourceType == RIFF_TYPE_DLS) {
322     // get current date
323     time_t now = time(NULL);
324     tm* pNowBroken = localtime(&now);
325     char buf[11];
326     strftime(buf, 11, "%F", pNowBroken);
327     defaultCreationDate = buf;
328    
329     defaultComments = "Created with " + libraryName() + " " + libraryVersion();
330     }
331     if (resourceType == RIFF_TYPE_DLS || resourceType == LIST_TYPE_INS)
332     {
333     defaultSoftware = libraryName() + " " + libraryVersion();
334     }
335     }
336    
337 schoenebeck 800 // save values
338 persson 918
339     // (the string size values are for gig files; they are only
340     // used if UseFixedLengthStrings is set to true)
341 schoenebeck 929 SaveString(CHUNK_ID_INAM, lstINFO, Name, defaultName, UseFixedLengthStrings,
342 persson 918 resourceType == RIFF_TYPE_DLS ? 128 : 64);
343 schoenebeck 929 SaveString(CHUNK_ID_IARL, lstINFO, ArchivalLocation, String(""), UseFixedLengthStrings, 256);
344     SaveString(CHUNK_ID_ICRD, lstINFO, CreationDate, defaultCreationDate, UseFixedLengthStrings, 128);
345     SaveString(CHUNK_ID_ICMT, lstINFO, Comments, defaultComments, UseFixedLengthStrings, 1024);
346     SaveString(CHUNK_ID_IPRD, lstINFO, Product, String(""), UseFixedLengthStrings, 128);
347     SaveString(CHUNK_ID_ICOP, lstINFO, Copyright, String(""), UseFixedLengthStrings, 128);
348     SaveString(CHUNK_ID_IART, lstINFO, Artists, String(""), UseFixedLengthStrings, 128);
349     SaveString(CHUNK_ID_IGNR, lstINFO, Genre, String(""), UseFixedLengthStrings, 128);
350     SaveString(CHUNK_ID_IKEY, lstINFO, Keywords, String(""), UseFixedLengthStrings, 128);
351     SaveString(CHUNK_ID_IENG, lstINFO, Engineer, String(""), UseFixedLengthStrings, 128);
352     SaveString(CHUNK_ID_ITCH, lstINFO, Technician, String(""), UseFixedLengthStrings, 128);
353     SaveString(CHUNK_ID_ISFT, lstINFO, Software, defaultSoftware, UseFixedLengthStrings,
354 persson 918 resourceType == LIST_TYPE_INS ?
355 schoenebeck 1106 (Software == "" ? defaultSoftware.length()+1 : Software.length()+1) : 128);
356 schoenebeck 929 SaveString(CHUNK_ID_IMED, lstINFO, Medium, String(""), UseFixedLengthStrings, 128);
357     SaveString(CHUNK_ID_ISRC, lstINFO, Source, String(""), UseFixedLengthStrings, 128);
358     SaveString(CHUNK_ID_ISRF, lstINFO, SourceForm, String(""), UseFixedLengthStrings, 128);
359     SaveString(CHUNK_ID_ICMS, lstINFO, Commissioned, String(""), UseFixedLengthStrings, 128);
360     SaveString(CHUNK_ID_ISBJ, lstINFO, Subject, String(""), UseFixedLengthStrings, 128);
361 schoenebeck 800 }
362    
363    
364    
365 schoenebeck 2 // *************** Resource ***************
366     // *
367    
368 schoenebeck 800 /** @brief Constructor.
369     *
370     * Initializes the 'Resource' object with values provided by a given
371     * INFO list chunk and a DLID chunk (the latter optional).
372     *
373     * @param Parent - pointer to parent 'Resource', NULL if this is
374     * the toplevel 'Resource' object
375     * @param lstResource - pointer to an INFO list chunk
376     */
377 schoenebeck 2 Resource::Resource(Resource* Parent, RIFF::List* lstResource) {
378     pParent = Parent;
379 schoenebeck 800 pResourceList = lstResource;
380 schoenebeck 2
381     pInfo = new Info(lstResource);
382    
383     RIFF::Chunk* ckDLSID = lstResource->GetSubChunk(CHUNK_ID_DLID);
384     if (ckDLSID) {
385     pDLSID = new dlsid_t;
386 schoenebeck 11 ckDLSID->Read(&pDLSID->ulData1, 1, 4);
387     ckDLSID->Read(&pDLSID->usData2, 1, 2);
388     ckDLSID->Read(&pDLSID->usData3, 1, 2);
389     ckDLSID->Read(pDLSID->abData, 8, 1);
390 schoenebeck 2 }
391     else pDLSID = NULL;
392     }
393    
394     Resource::~Resource() {
395     if (pDLSID) delete pDLSID;
396     if (pInfo) delete pInfo;
397     }
398    
399 schoenebeck 800 /** @brief Update chunks with current Resource data.
400     *
401     * Apply Resource data persistently below the previously given resource
402     * list chunk. This will currently only include the INFO data. The DLSID
403     * will not be applied at the moment (yet).
404     *
405     * You have to call File::Save() to make changes persistent.
406     */
407     void Resource::UpdateChunks() {
408     pInfo->UpdateChunks();
409     //TODO: save DLSID
410     }
411 schoenebeck 2
412    
413 schoenebeck 800
414 schoenebeck 2 // *************** Sampler ***************
415     // *
416    
417     Sampler::Sampler(RIFF::List* ParentList) {
418 schoenebeck 800 pParentList = ParentList;
419 schoenebeck 2 RIFF::Chunk* wsmp = ParentList->GetSubChunk(CHUNK_ID_WSMP);
420 schoenebeck 800 if (wsmp) {
421     uiHeaderSize = wsmp->ReadUint32();
422     UnityNote = wsmp->ReadUint16();
423     FineTune = wsmp->ReadInt16();
424     Gain = wsmp->ReadInt32();
425     SamplerOptions = wsmp->ReadUint32();
426     SampleLoops = wsmp->ReadUint32();
427     } else { // 'wsmp' chunk missing
428     uiHeaderSize = 0;
429     UnityNote = 64;
430     FineTune = 0; // +- 0 cents
431     Gain = 0; // 0 dB
432     SamplerOptions = F_WSMP_NO_COMPRESSION;
433     SampleLoops = 0;
434     }
435 schoenebeck 2 NoSampleDepthTruncation = SamplerOptions & F_WSMP_NO_TRUNCATION;
436     NoSampleCompression = SamplerOptions & F_WSMP_NO_COMPRESSION;
437     pSampleLoops = (SampleLoops) ? new sample_loop_t[SampleLoops] : NULL;
438 schoenebeck 800 if (SampleLoops) {
439     wsmp->SetPos(uiHeaderSize);
440     for (uint32_t i = 0; i < SampleLoops; i++) {
441     wsmp->Read(pSampleLoops + i, 4, 4);
442     if (pSampleLoops[i].Size > sizeof(sample_loop_t)) { // if loop struct was extended
443     wsmp->SetPos(pSampleLoops[i].Size - sizeof(sample_loop_t), RIFF::stream_curpos);
444     }
445 schoenebeck 2 }
446     }
447     }
448    
449     Sampler::~Sampler() {
450     if (pSampleLoops) delete[] pSampleLoops;
451     }
452    
453 schoenebeck 800 /**
454     * Apply all sample player options to the respective RIFF chunk. You
455     * have to call File::Save() to make changes persistent.
456     */
457     void Sampler::UpdateChunks() {
458     // make sure 'wsmp' chunk exists
459     RIFF::Chunk* wsmp = pParentList->GetSubChunk(CHUNK_ID_WSMP);
460     if (!wsmp) {
461     uiHeaderSize = 20;
462     wsmp = pParentList->AddSubChunk(CHUNK_ID_WSMP, uiHeaderSize + SampleLoops * 16);
463     }
464     uint8_t* pData = (uint8_t*) wsmp->LoadChunkData();
465     // update headers size
466 persson 918 memcpy(&pData[0], &uiHeaderSize, 4);
467 schoenebeck 800 // update respective sampler options bits
468     SamplerOptions = (NoSampleDepthTruncation) ? SamplerOptions | F_WSMP_NO_TRUNCATION
469     : SamplerOptions & (~F_WSMP_NO_TRUNCATION);
470     SamplerOptions = (NoSampleCompression) ? SamplerOptions | F_WSMP_NO_COMPRESSION
471     : SamplerOptions & (~F_WSMP_NO_COMPRESSION);
472 schoenebeck 919 memcpy(&pData[4], &UnityNote, 2);
473     memcpy(&pData[6], &FineTune, 2);
474     memcpy(&pData[8], &Gain, 4);
475     memcpy(&pData[12], &SamplerOptions, 4);
476     memcpy(&pData[16], &SampleLoops, 4);
477 schoenebeck 800 // update loop definitions
478     for (uint32_t i = 0; i < SampleLoops; i++) {
479     //FIXME: this does not handle extended loop structs correctly
480 persson 918 memcpy(&pData[uiHeaderSize + i * 16], pSampleLoops + i, 4 * 4);
481 schoenebeck 800 }
482     }
483 schoenebeck 2
484 schoenebeck 1154 /**
485     * Adds a new sample loop with the provided loop definition.
486     *
487     * @param - points to a loop definition that is to be copied
488     */
489     void Sampler::AddSampleLoop(sample_loop_t* pLoopDef) {
490     sample_loop_t* pNewLoops = new sample_loop_t[SampleLoops + 1];
491     // copy old loops array
492     for (int i = 0; i < SampleLoops; i++) {
493     pNewLoops[i] = pSampleLoops[i];
494     }
495     // add the new loop
496     pNewLoops[SampleLoops] = *pLoopDef;
497     // free the old array and update the member variables
498     if (SampleLoops) delete[] pSampleLoops;
499     pSampleLoops = pNewLoops;
500     SampleLoops++;
501     }
502 schoenebeck 2
503 schoenebeck 1154 /**
504     * Deletes an existing sample loop.
505     *
506     * @param pLoopDef - pointer to existing loop definition
507     * @throws Exception - if given loop definition does not exist
508     */
509     void Sampler::DeleteSampleLoop(sample_loop_t* pLoopDef) {
510     sample_loop_t* pNewLoops = new sample_loop_t[SampleLoops - 1];
511     // copy old loops array (skipping given loop)
512     for (int i = 0, o = 0; i < SampleLoops; i++) {
513     if (&pSampleLoops[i] == pLoopDef) continue;
514     if (o == SampleLoops - 1)
515     throw Exception("Could not delete Sample Loop, because it does not exist");
516     pNewLoops[o] = pSampleLoops[i];
517     o++;
518     }
519     // free the old array and update the member variables
520     if (SampleLoops) delete[] pSampleLoops;
521     pSampleLoops = pNewLoops;
522     SampleLoops--;
523     }
524 schoenebeck 800
525 schoenebeck 1154
526    
527 schoenebeck 2 // *************** Sample ***************
528     // *
529    
530 schoenebeck 800 /** @brief Constructor.
531     *
532     * Load an existing sample or create a new one. A 'wave' list chunk must
533     * be given to this constructor. In case the given 'wave' list chunk
534     * contains a 'fmt' and 'data' chunk, the format and sample data will be
535     * loaded from there, otherwise default values will be used and those
536     * chunks will be created when File::Save() will be called later on.
537     *
538     * @param pFile - pointer to DLS::File where this sample is
539     * located (or will be located)
540     * @param waveList - pointer to 'wave' list chunk which is (or
541     * will be) associated with this sample
542     * @param WavePoolOffset - offset of this sample data from wave pool
543     * ('wvpl') list chunk
544     */
545 schoenebeck 2 Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset) : Resource(pFile, waveList) {
546 schoenebeck 800 pWaveList = waveList;
547 schoenebeck 2 ulWavePoolOffset = WavePoolOffset - LIST_HEADER_SIZE;
548     pCkFormat = waveList->GetSubChunk(CHUNK_ID_FMT);
549     pCkData = waveList->GetSubChunk(CHUNK_ID_DATA);
550 schoenebeck 800 if (pCkFormat) {
551     // common fields
552     FormatTag = pCkFormat->ReadUint16();
553     Channels = pCkFormat->ReadUint16();
554     SamplesPerSecond = pCkFormat->ReadUint32();
555     AverageBytesPerSecond = pCkFormat->ReadUint32();
556     BlockAlign = pCkFormat->ReadUint16();
557     // PCM format specific
558 schoenebeck 1050 if (FormatTag == DLS_WAVE_FORMAT_PCM) {
559 schoenebeck 800 BitDepth = pCkFormat->ReadUint16();
560 persson 928 FrameSize = (BitDepth / 8) * Channels;
561 schoenebeck 800 } else { // unsupported sample data format
562     BitDepth = 0;
563     FrameSize = 0;
564     }
565     } else { // 'fmt' chunk missing
566 schoenebeck 1050 FormatTag = DLS_WAVE_FORMAT_PCM;
567 schoenebeck 800 BitDepth = 16;
568     Channels = 1;
569     SamplesPerSecond = 44100;
570     AverageBytesPerSecond = (BitDepth / 8) * SamplesPerSecond * Channels;
571     FrameSize = (BitDepth / 8) * Channels;
572     BlockAlign = FrameSize;
573 schoenebeck 2 }
574 schoenebeck 1050 SamplesTotal = (pCkData) ? (FormatTag == DLS_WAVE_FORMAT_PCM) ? pCkData->GetSize() / FrameSize
575     : 0
576 schoenebeck 800 : 0;
577 schoenebeck 2 }
578    
579 schoenebeck 800 /** @brief Destructor.
580     *
581     * Removes RIFF chunks associated with this Sample and frees all
582     * memory occupied by this sample.
583     */
584     Sample::~Sample() {
585     RIFF::List* pParent = pWaveList->GetParent();
586     pParent->DeleteSubChunk(pWaveList);
587     }
588    
589     /** @brief Load sample data into RAM.
590     *
591     * In case the respective 'data' chunk exists, the sample data will be
592     * loaded into RAM (if not done already) and a pointer to the data in
593     * RAM will be returned. If this is a new sample, you have to call
594     * Resize() with the desired sample size to create the mandatory RIFF
595     * chunk for the sample wave data.
596     *
597     * You can call LoadChunkData() again if you previously scheduled to
598     * enlarge the sample data RIFF chunk with a Resize() call. In that case
599     * the buffer will be enlarged to the new, scheduled size and you can
600     * already place the sample wave data to the buffer and finally call
601     * File::Save() to enlarge the sample data's chunk physically and write
602     * the new sample wave data in one rush. This approach is definitely
603     * recommended if you have to enlarge and write new sample data to a lot
604     * of samples.
605     *
606     * <b>Caution:</b> the buffer pointer will be invalidated once
607     * File::Save() was called. You have to call LoadChunkData() again to
608     * get a new, valid pointer whenever File::Save() was called.
609     *
610     * @returns pointer to sample data in RAM, NULL in case respective
611     * 'data' chunk does not exist (yet)
612     * @throws Exception if data buffer could not be enlarged
613     * @see Resize(), File::Save()
614     */
615 schoenebeck 2 void* Sample::LoadSampleData() {
616 schoenebeck 800 return (pCkData) ? pCkData->LoadChunkData() : NULL;
617 schoenebeck 2 }
618    
619 schoenebeck 800 /** @brief Free sample data from RAM.
620     *
621     * In case sample data was previously successfully loaded into RAM with
622     * LoadSampleData(), this method will free the sample data from RAM.
623     */
624 schoenebeck 2 void Sample::ReleaseSampleData() {
625 schoenebeck 800 if (pCkData) pCkData->ReleaseChunkData();
626 schoenebeck 2 }
627    
628 schoenebeck 800 /** @brief Returns sample size.
629     *
630     * Returns the sample wave form's data size (in sample points). This is
631     * actually the current, physical size (converted to sample points) of
632     * the RIFF chunk which encapsulates the sample's wave data. The
633     * returned value is dependant to the current FrameSize value.
634     *
635 schoenebeck 1050 * @returns number of sample points or 0 if FormatTag != DLS_WAVE_FORMAT_PCM
636 schoenebeck 800 * @see FrameSize, FormatTag
637     */
638     unsigned long Sample::GetSize() {
639 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0;
640 schoenebeck 800 return (pCkData) ? pCkData->GetSize() / FrameSize : 0;
641     }
642    
643     /** @brief Resize sample.
644     *
645     * Resizes the sample's wave form data, that is the actual size of
646     * sample wave data possible to be written for this sample. This call
647     * will return immediately and just schedule the resize operation. You
648     * should call File::Save() to actually perform the resize operation(s)
649     * "physically" to the file. As this can take a while on large files, it
650     * is recommended to call Resize() first on all samples which have to be
651     * resized and finally to call File::Save() to perform all those resize
652     * operations in one rush.
653     *
654     * The actual size (in bytes) is dependant to the current FrameSize
655     * value. You may want to set FrameSize before calling Resize().
656     *
657     * <b>Caution:</b> You cannot directly write to enlarged samples before
658     * calling File::Save() as this might exceed the current sample's
659     * boundary!
660     *
661 schoenebeck 1050 * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is
662     * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with
663 schoenebeck 800 * other formats will fail!
664     *
665     * @param iNewSize - new sample wave data size in sample points (must be
666     * greater than zero)
667 schoenebeck 1050 * @throws Excecption if FormatTag != DLS_WAVE_FORMAT_PCM
668 schoenebeck 800 * @throws Exception if \a iNewSize is less than 1
669     * @see File::Save(), FrameSize, FormatTag
670     */
671     void Sample::Resize(int iNewSize) {
672 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM) throw Exception("Sample's format is not DLS_WAVE_FORMAT_PCM");
673 schoenebeck 800 if (iNewSize < 1) throw Exception("Sample size must be at least one sample point");
674     const int iSizeInBytes = iNewSize * FrameSize;
675     pCkData = pWaveList->GetSubChunk(CHUNK_ID_DATA);
676     if (pCkData) pCkData->Resize(iSizeInBytes);
677     else pCkData = pWaveList->AddSubChunk(CHUNK_ID_DATA, iSizeInBytes);
678     }
679    
680 schoenebeck 2 /**
681     * Sets the position within the sample (in sample points, not in
682     * bytes). Use this method and <i>Read()</i> if you don't want to load
683     * the sample into RAM, thus for disk streaming.
684     *
685 schoenebeck 1050 * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is
686     * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to reposition the sample
687 schoenebeck 800 * with other formats will fail!
688     *
689 schoenebeck 2 * @param SampleCount number of sample points
690     * @param Whence to which relation \a SampleCount refers to
691 schoenebeck 800 * @returns new position within the sample, 0 if
692 schoenebeck 1050 * FormatTag != DLS_WAVE_FORMAT_PCM
693 schoenebeck 800 * @throws Exception if no data RIFF chunk was created for the sample yet
694     * @see FrameSize, FormatTag
695 schoenebeck 2 */
696     unsigned long Sample::SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence) {
697 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
698 schoenebeck 800 if (!pCkData) throw Exception("No data chunk created for sample yet, call Sample::Resize() to create one");
699 schoenebeck 2 unsigned long orderedBytes = SampleCount * FrameSize;
700     unsigned long result = pCkData->SetPos(orderedBytes, Whence);
701     return (result == orderedBytes) ? SampleCount
702     : result / FrameSize;
703     }
704    
705     /**
706     * Reads \a SampleCount number of sample points from the current
707     * position into the buffer pointed by \a pBuffer and increments the
708     * position within the sample. Use this method and <i>SetPos()</i> if you
709     * don't want to load the sample into RAM, thus for disk streaming.
710     *
711     * @param pBuffer destination buffer
712     * @param SampleCount number of sample points to read
713     */
714     unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) {
715 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
716 schoenebeck 11 return pCkData->Read(pBuffer, SampleCount, FrameSize); // FIXME: channel inversion due to endian correction?
717 schoenebeck 2 }
718    
719 schoenebeck 800 /** @brief Write sample wave data.
720     *
721     * Writes \a SampleCount number of sample points from the buffer pointed
722     * by \a pBuffer and increments the position within the sample. Use this
723     * method to directly write the sample data to disk, i.e. if you don't
724     * want or cannot load the whole sample data into RAM.
725     *
726     * You have to Resize() the sample to the desired size and call
727     * File::Save() <b>before</b> using Write().
728     *
729     * @param pBuffer - source buffer
730     * @param SampleCount - number of sample points to write
731     * @throws Exception if current sample size is too small
732     * @see LoadSampleData()
733     */
734     unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) {
735 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM) return 0; // failed: wave data not PCM format
736 schoenebeck 800 if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small");
737     return pCkData->Write(pBuffer, SampleCount, FrameSize); // FIXME: channel inversion due to endian correction?
738     }
739 schoenebeck 2
740 schoenebeck 800 /**
741     * Apply sample and its settings to the respective RIFF chunks. You have
742     * to call File::Save() to make changes persistent.
743     *
744 schoenebeck 1050 * @throws Exception if FormatTag != DLS_WAVE_FORMAT_PCM or no sample data
745 schoenebeck 800 * was provided yet
746     */
747     void Sample::UpdateChunks() {
748 schoenebeck 1050 if (FormatTag != DLS_WAVE_FORMAT_PCM)
749 schoenebeck 800 throw Exception("Could not save sample, only PCM format is supported");
750     // we refuse to do anything if not sample wave form was provided yet
751     if (!pCkData)
752     throw Exception("Could not save sample, there is no sample data to save");
753     // update chunks of base class as well
754     Resource::UpdateChunks();
755     // make sure 'fmt' chunk exists
756     RIFF::Chunk* pCkFormat = pWaveList->GetSubChunk(CHUNK_ID_FMT);
757     if (!pCkFormat) pCkFormat = pWaveList->AddSubChunk(CHUNK_ID_FMT, 16); // assumes PCM format
758     uint8_t* pData = (uint8_t*) pCkFormat->LoadChunkData();
759     // update 'fmt' chunk
760 persson 918 memcpy(&pData[0], &FormatTag, 2);
761     memcpy(&pData[2], &Channels, 2);
762     memcpy(&pData[4], &SamplesPerSecond, 4);
763     memcpy(&pData[8], &AverageBytesPerSecond, 4);
764     memcpy(&pData[12], &BlockAlign, 2);
765     memcpy(&pData[14], &BitDepth, 2); // assuming PCM format
766 schoenebeck 800 }
767 schoenebeck 2
768 schoenebeck 800
769    
770 schoenebeck 2 // *************** Region ***************
771     // *
772    
773     Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : Resource(pInstrument, rgnList), Articulator(rgnList), Sampler(rgnList) {
774     pCkRegion = rgnList;
775    
776 schoenebeck 800 // articulation informations
777 schoenebeck 2 RIFF::Chunk* rgnh = rgnList->GetSubChunk(CHUNK_ID_RGNH);
778 schoenebeck 800 if (rgnh) {
779     rgnh->Read(&KeyRange, 2, 2);
780     rgnh->Read(&VelocityRange, 2, 2);
781     FormatOptionFlags = rgnh->ReadUint16();
782     KeyGroup = rgnh->ReadUint16();
783     // Layer is optional
784     if (rgnh->RemainingBytes() >= sizeof(uint16_t)) {
785     rgnh->Read(&Layer, 1, sizeof(uint16_t));
786     } else Layer = 0;
787     } else { // 'rgnh' chunk is missing
788     KeyRange.low = 0;
789     KeyRange.high = 127;
790     VelocityRange.low = 0;
791     VelocityRange.high = 127;
792     FormatOptionFlags = F_RGN_OPTION_SELFNONEXCLUSIVE;
793     KeyGroup = 0;
794     Layer = 0;
795 schoenebeck 2 }
796 schoenebeck 800 SelfNonExclusive = FormatOptionFlags & F_RGN_OPTION_SELFNONEXCLUSIVE;
797 schoenebeck 2
798 schoenebeck 800 // sample informations
799 schoenebeck 2 RIFF::Chunk* wlnk = rgnList->GetSubChunk(CHUNK_ID_WLNK);
800 schoenebeck 800 if (wlnk) {
801     WaveLinkOptionFlags = wlnk->ReadUint16();
802     PhaseGroup = wlnk->ReadUint16();
803     Channel = wlnk->ReadUint32();
804     WavePoolTableIndex = wlnk->ReadUint32();
805     } else { // 'wlnk' chunk is missing
806     WaveLinkOptionFlags = 0;
807     PhaseGroup = 0;
808     Channel = 0; // mono
809     WavePoolTableIndex = 0; // first entry in wave pool table
810     }
811     PhaseMaster = WaveLinkOptionFlags & F_WAVELINK_PHASE_MASTER;
812     MultiChannel = WaveLinkOptionFlags & F_WAVELINK_MULTICHANNEL;
813 schoenebeck 2
814     pSample = NULL;
815     }
816    
817 schoenebeck 800 /** @brief Destructor.
818     *
819     * Removes RIFF chunks associated with this Region.
820     */
821 schoenebeck 2 Region::~Region() {
822 schoenebeck 800 RIFF::List* pParent = pCkRegion->GetParent();
823     pParent->DeleteSubChunk(pCkRegion);
824 schoenebeck 2 }
825    
826     Sample* Region::GetSample() {
827     if (pSample) return pSample;
828     File* file = (File*) GetParent()->GetParent();
829     unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex];
830     Sample* sample = file->GetFirstSample();
831     while (sample) {
832     if (sample->ulWavePoolOffset == soughtoffset) return (pSample = sample);
833     sample = file->GetNextSample();
834     }
835     return NULL;
836     }
837    
838 schoenebeck 800 /**
839     * Assign another sample to this Region.
840     *
841     * @param pSample - sample to be assigned
842     */
843     void Region::SetSample(Sample* pSample) {
844     this->pSample = pSample;
845     WavePoolTableIndex = 0; // we update this offset when we Save()
846     }
847 schoenebeck 2
848 schoenebeck 800 /**
849     * Apply Region settings to the respective RIFF chunks. You have to
850     * call File::Save() to make changes persistent.
851     *
852     * @throws Exception - if the Region's sample could not be found
853     */
854     void Region::UpdateChunks() {
855     // make sure 'rgnh' chunk exists
856     RIFF::Chunk* rgnh = pCkRegion->GetSubChunk(CHUNK_ID_RGNH);
857 persson 918 if (!rgnh) rgnh = pCkRegion->AddSubChunk(CHUNK_ID_RGNH, Layer ? 14 : 12);
858 schoenebeck 800 uint8_t* pData = (uint8_t*) rgnh->LoadChunkData();
859     FormatOptionFlags = (SelfNonExclusive)
860     ? FormatOptionFlags | F_RGN_OPTION_SELFNONEXCLUSIVE
861     : FormatOptionFlags & (~F_RGN_OPTION_SELFNONEXCLUSIVE);
862     // update 'rgnh' chunk
863 persson 918 memcpy(&pData[0], &KeyRange, 2 * 2);
864     memcpy(&pData[4], &VelocityRange, 2 * 2);
865     memcpy(&pData[8], &FormatOptionFlags, 2);
866     memcpy(&pData[10], &KeyGroup, 2);
867     if (rgnh->GetSize() >= 14) memcpy(&pData[12], &Layer, 2);
868 schoenebeck 2
869 persson 918 // update chunks of base classes as well (but skip Resource,
870     // as a rgn doesn't seem to have dlid and INFO chunks)
871 schoenebeck 800 Articulator::UpdateChunks();
872     Sampler::UpdateChunks();
873    
874     // make sure 'wlnk' chunk exists
875     RIFF::Chunk* wlnk = pCkRegion->GetSubChunk(CHUNK_ID_WLNK);
876     if (!wlnk) wlnk = pCkRegion->AddSubChunk(CHUNK_ID_WLNK, 12);
877     pData = (uint8_t*) wlnk->LoadChunkData();
878     WaveLinkOptionFlags = (PhaseMaster)
879     ? WaveLinkOptionFlags | F_WAVELINK_PHASE_MASTER
880     : WaveLinkOptionFlags & (~F_WAVELINK_PHASE_MASTER);
881     WaveLinkOptionFlags = (MultiChannel)
882     ? WaveLinkOptionFlags | F_WAVELINK_MULTICHANNEL
883     : WaveLinkOptionFlags & (~F_WAVELINK_MULTICHANNEL);
884     // get sample's wave pool table index
885     int index = -1;
886     File* pFile = (File*) GetParent()->GetParent();
887 schoenebeck 804 if (pFile->pSamples) {
888     File::SampleList::iterator iter = pFile->pSamples->begin();
889     File::SampleList::iterator end = pFile->pSamples->end();
890     for (int i = 0; iter != end; ++iter, i++) {
891     if (*iter == pSample) {
892     index = i;
893     break;
894     }
895 schoenebeck 800 }
896     }
897     if (index < 0) throw Exception("Could not save Region, could not find Region's sample");
898     WavePoolTableIndex = index;
899     // update 'wlnk' chunk
900 persson 918 memcpy(&pData[0], &WaveLinkOptionFlags, 2);
901     memcpy(&pData[2], &PhaseGroup, 2);
902     memcpy(&pData[4], &Channel, 4);
903     memcpy(&pData[8], &WavePoolTableIndex, 4);
904 schoenebeck 800 }
905    
906    
907    
908 schoenebeck 2 // *************** Instrument ***************
909     // *
910    
911 schoenebeck 800 /** @brief Constructor.
912     *
913     * Load an existing instrument definition or create a new one. An 'ins'
914     * list chunk must be given to this constructor. In case this 'ins' list
915     * chunk contains a 'insh' chunk, the instrument data fields will be
916     * loaded from there, otherwise default values will be used and the
917     * 'insh' chunk will be created once File::Save() was called.
918     *
919     * @param pFile - pointer to DLS::File where this instrument is
920     * located (or will be located)
921     * @param insList - pointer to 'ins' list chunk which is (or will be)
922     * associated with this instrument
923     */
924 schoenebeck 2 Instrument::Instrument(File* pFile, RIFF::List* insList) : Resource(pFile, insList), Articulator(insList) {
925     pCkInstrument = insList;
926    
927 schoenebeck 800 midi_locale_t locale;
928 schoenebeck 2 RIFF::Chunk* insh = pCkInstrument->GetSubChunk(CHUNK_ID_INSH);
929 schoenebeck 800 if (insh) {
930     Regions = insh->ReadUint32();
931     insh->Read(&locale, 2, 4);
932     } else { // 'insh' chunk missing
933     Regions = 0;
934     locale.bank = 0;
935     locale.instrument = 0;
936     }
937    
938 schoenebeck 2 MIDIProgram = locale.instrument;
939     IsDrum = locale.bank & DRUM_TYPE_MASK;
940     MIDIBankCoarse = (uint8_t) MIDI_BANK_COARSE(locale.bank);
941     MIDIBankFine = (uint8_t) MIDI_BANK_FINE(locale.bank);
942     MIDIBank = MIDI_BANK_MERGE(MIDIBankCoarse, MIDIBankFine);
943    
944 schoenebeck 800 pRegions = NULL;
945 schoenebeck 2 }
946    
947     Region* Instrument::GetFirstRegion() {
948     if (!pRegions) LoadRegions();
949     if (!pRegions) return NULL;
950     RegionsIterator = pRegions->begin();
951     return (RegionsIterator != pRegions->end()) ? *RegionsIterator : NULL;
952     }
953    
954     Region* Instrument::GetNextRegion() {
955     if (!pRegions) return NULL;
956     RegionsIterator++;
957     return (RegionsIterator != pRegions->end()) ? *RegionsIterator : NULL;
958     }
959    
960     void Instrument::LoadRegions() {
961 schoenebeck 823 if (!pRegions) pRegions = new RegionList;
962 schoenebeck 2 RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
963 schoenebeck 823 if (lrgn) {
964     uint32_t regionCkType = (lrgn->GetSubList(LIST_TYPE_RGN2)) ? LIST_TYPE_RGN2 : LIST_TYPE_RGN; // prefer regions level 2
965     RIFF::List* rgn = lrgn->GetFirstSubList();
966     while (rgn) {
967     if (rgn->GetListType() == regionCkType) {
968     pRegions->push_back(new Region(this, rgn));
969     }
970     rgn = lrgn->GetNextSubList();
971 schoenebeck 2 }
972     }
973     }
974    
975 schoenebeck 800 Region* Instrument::AddRegion() {
976 schoenebeck 823 if (!pRegions) LoadRegions();
977 schoenebeck 800 RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
978     if (!lrgn) lrgn = pCkInstrument->AddSubList(LIST_TYPE_LRGN);
979     RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN);
980     Region* pNewRegion = new Region(this, rgn);
981     pRegions->push_back(pNewRegion);
982 schoenebeck 823 Regions = pRegions->size();
983 schoenebeck 800 return pNewRegion;
984     }
985    
986 persson 1102 void Instrument::MoveRegion(Region* pSrc, Region* pDst) {
987     RIFF::List* lrgn = pCkInstrument->GetSubList(LIST_TYPE_LRGN);
988     lrgn->MoveSubChunk(pSrc->pCkRegion, pDst ? pDst->pCkRegion : 0);
989    
990     pRegions->remove(pSrc);
991     RegionList::iterator iter = find(pRegions->begin(), pRegions->end(), pDst);
992     pRegions->insert(iter, pSrc);
993     }
994    
995 schoenebeck 800 void Instrument::DeleteRegion(Region* pRegion) {
996 schoenebeck 802 if (!pRegions) return;
997 schoenebeck 800 RegionList::iterator iter = find(pRegions->begin(), pRegions->end(), pRegion);
998     if (iter == pRegions->end()) return;
999     pRegions->erase(iter);
1000 schoenebeck 823 Regions = pRegions->size();
1001 schoenebeck 800 delete pRegion;
1002     }
1003    
1004     /**
1005     * Apply Instrument with all its Regions to the respective RIFF chunks.
1006     * You have to call File::Save() to make changes persistent.
1007     *
1008     * @throws Exception - on errors
1009     */
1010     void Instrument::UpdateChunks() {
1011     // first update base classes' chunks
1012     Resource::UpdateChunks();
1013     Articulator::UpdateChunks();
1014     // make sure 'insh' chunk exists
1015     RIFF::Chunk* insh = pCkInstrument->GetSubChunk(CHUNK_ID_INSH);
1016     if (!insh) insh = pCkInstrument->AddSubChunk(CHUNK_ID_INSH, 12);
1017     uint8_t* pData = (uint8_t*) insh->LoadChunkData();
1018     // update 'insh' chunk
1019 schoenebeck 804 Regions = (pRegions) ? pRegions->size() : 0;
1020 schoenebeck 800 midi_locale_t locale;
1021     locale.instrument = MIDIProgram;
1022     locale.bank = MIDI_BANK_ENCODE(MIDIBankCoarse, MIDIBankFine);
1023     locale.bank = (IsDrum) ? locale.bank | DRUM_TYPE_MASK : locale.bank & (~DRUM_TYPE_MASK);
1024     MIDIBank = MIDI_BANK_MERGE(MIDIBankCoarse, MIDIBankFine); // just a sync, when we're at it
1025 persson 918 memcpy(&pData[0], &Regions, 4);
1026     memcpy(&pData[4], &locale, 2 * 4);
1027 schoenebeck 800 // update Region's chunks
1028 schoenebeck 804 if (!pRegions) return;
1029 schoenebeck 800 RegionList::iterator iter = pRegions->begin();
1030     RegionList::iterator end = pRegions->end();
1031     for (; iter != end; ++iter) {
1032     (*iter)->UpdateChunks();
1033     }
1034     }
1035    
1036     /** @brief Destructor.
1037     *
1038     * Removes RIFF chunks associated with this Instrument and frees all
1039     * memory occupied by this instrument.
1040     */
1041 schoenebeck 2 Instrument::~Instrument() {
1042     if (pRegions) {
1043     RegionList::iterator iter = pRegions->begin();
1044     RegionList::iterator end = pRegions->end();
1045     while (iter != end) {
1046     delete *iter;
1047     iter++;
1048     }
1049     delete pRegions;
1050     }
1051 schoenebeck 800 // remove instrument's chunks
1052     RIFF::List* pParent = pCkInstrument->GetParent();
1053     pParent->DeleteSubChunk(pCkInstrument);
1054 schoenebeck 2 }
1055    
1056    
1057    
1058     // *************** File ***************
1059     // *
1060    
1061 schoenebeck 800 /** @brief Constructor.
1062     *
1063     * Default constructor, use this to create an empty DLS file. You have
1064     * to add samples, instruments and finally call Save() to actually write
1065     * a DLS file.
1066     */
1067 schoenebeck 802 File::File() : Resource(NULL, pRIFF = new RIFF::File(RIFF_TYPE_DLS)) {
1068 schoenebeck 800 pVersion = new version_t;
1069     pVersion->major = 0;
1070     pVersion->minor = 0;
1071     pVersion->release = 0;
1072     pVersion->build = 0;
1073    
1074     Instruments = 0;
1075     WavePoolCount = 0;
1076     pWavePoolTable = NULL;
1077     pWavePoolTableHi = NULL;
1078     WavePoolHeaderSize = 8;
1079    
1080     pSamples = NULL;
1081     pInstruments = NULL;
1082    
1083     b64BitWavePoolOffsets = false;
1084     }
1085    
1086     /** @brief Constructor.
1087     *
1088     * Load an existing DLS file.
1089     *
1090     * @param pRIFF - pointer to a RIFF file which is actually the DLS file
1091     * to load
1092     * @throws Exception if given file is not a DLS file, expected chunks
1093     * are missing
1094     */
1095 schoenebeck 2 File::File(RIFF::File* pRIFF) : Resource(NULL, pRIFF) {
1096     if (!pRIFF) throw DLS::Exception("NULL pointer reference to RIFF::File object.");
1097     this->pRIFF = pRIFF;
1098    
1099     RIFF::Chunk* ckVersion = pRIFF->GetSubChunk(CHUNK_ID_VERS);
1100     if (ckVersion) {
1101     pVersion = new version_t;
1102 schoenebeck 11 ckVersion->Read(pVersion, 4, 2);
1103 schoenebeck 2 }
1104     else pVersion = NULL;
1105    
1106     RIFF::Chunk* colh = pRIFF->GetSubChunk(CHUNK_ID_COLH);
1107     if (!colh) throw DLS::Exception("Mandatory chunks in RIFF list chunk not found.");
1108     Instruments = colh->ReadUint32();
1109    
1110     RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1111 persson 902 if (!ptbl) { // pool table is missing - this is probably an ".art" file
1112     WavePoolCount = 0;
1113     pWavePoolTable = NULL;
1114     pWavePoolTableHi = NULL;
1115     WavePoolHeaderSize = 8;
1116     b64BitWavePoolOffsets = false;
1117     } else {
1118     WavePoolHeaderSize = ptbl->ReadUint32();
1119     WavePoolCount = ptbl->ReadUint32();
1120     pWavePoolTable = new uint32_t[WavePoolCount];
1121     pWavePoolTableHi = new uint32_t[WavePoolCount];
1122     ptbl->SetPos(WavePoolHeaderSize);
1123 schoenebeck 2
1124 persson 902 // Check for 64 bit offsets (used in gig v3 files)
1125     b64BitWavePoolOffsets = (ptbl->GetSize() - WavePoolHeaderSize == WavePoolCount * 8);
1126     if (b64BitWavePoolOffsets) {
1127     for (int i = 0 ; i < WavePoolCount ; i++) {
1128     pWavePoolTableHi[i] = ptbl->ReadUint32();
1129     pWavePoolTable[i] = ptbl->ReadUint32();
1130     if (pWavePoolTable[i] & 0x80000000)
1131     throw DLS::Exception("Files larger than 2 GB not yet supported");
1132     }
1133     } else { // conventional 32 bit offsets
1134     ptbl->Read(pWavePoolTable, WavePoolCount, sizeof(uint32_t));
1135     for (int i = 0 ; i < WavePoolCount ; i++) pWavePoolTableHi[i] = 0;
1136 schoenebeck 317 }
1137 persson 666 }
1138 schoenebeck 317
1139 schoenebeck 2 pSamples = NULL;
1140     pInstruments = NULL;
1141     }
1142    
1143     File::~File() {
1144     if (pInstruments) {
1145     InstrumentList::iterator iter = pInstruments->begin();
1146     InstrumentList::iterator end = pInstruments->end();
1147     while (iter != end) {
1148     delete *iter;
1149     iter++;
1150     }
1151     delete pInstruments;
1152     }
1153    
1154     if (pSamples) {
1155     SampleList::iterator iter = pSamples->begin();
1156     SampleList::iterator end = pSamples->end();
1157     while (iter != end) {
1158     delete *iter;
1159     iter++;
1160     }
1161     delete pSamples;
1162     }
1163    
1164     if (pWavePoolTable) delete[] pWavePoolTable;
1165 persson 666 if (pWavePoolTableHi) delete[] pWavePoolTableHi;
1166 schoenebeck 2 if (pVersion) delete pVersion;
1167 persson 834 for (std::list<RIFF::File*>::iterator i = ExtensionFiles.begin() ; i != ExtensionFiles.end() ; i++)
1168     delete *i;
1169 schoenebeck 2 }
1170    
1171     Sample* File::GetFirstSample() {
1172     if (!pSamples) LoadSamples();
1173     if (!pSamples) return NULL;
1174     SamplesIterator = pSamples->begin();
1175     return (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL;
1176     }
1177    
1178     Sample* File::GetNextSample() {
1179     if (!pSamples) return NULL;
1180     SamplesIterator++;
1181     return (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL;
1182     }
1183    
1184     void File::LoadSamples() {
1185 schoenebeck 823 if (!pSamples) pSamples = new SampleList;
1186 schoenebeck 2 RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1187     if (wvpl) {
1188     unsigned long wvplFileOffset = wvpl->GetFilePos();
1189     RIFF::List* wave = wvpl->GetFirstSubList();
1190     while (wave) {
1191     if (wave->GetListType() == LIST_TYPE_WAVE) {
1192     unsigned long waveFileOffset = wave->GetFilePos();
1193     pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset));
1194     }
1195     wave = wvpl->GetNextSubList();
1196     }
1197     }
1198     else { // Seen a dwpl list chunk instead of a wvpl list chunk in some file (officially not DLS compliant)
1199     RIFF::List* dwpl = pRIFF->GetSubList(LIST_TYPE_DWPL);
1200     if (dwpl) {
1201     unsigned long dwplFileOffset = dwpl->GetFilePos();
1202     RIFF::List* wave = dwpl->GetFirstSubList();
1203     while (wave) {
1204     if (wave->GetListType() == LIST_TYPE_WAVE) {
1205     unsigned long waveFileOffset = wave->GetFilePos();
1206     pSamples->push_back(new Sample(this, wave, waveFileOffset - dwplFileOffset));
1207     }
1208     wave = dwpl->GetNextSubList();
1209     }
1210     }
1211     }
1212     }
1213    
1214 schoenebeck 800 /** @brief Add a new sample.
1215     *
1216     * This will create a new Sample object for the DLS file. You have to
1217     * call Save() to make this persistent to the file.
1218     *
1219     * @returns pointer to new Sample object
1220     */
1221     Sample* File::AddSample() {
1222 schoenebeck 809 if (!pSamples) LoadSamples();
1223 schoenebeck 800 __ensureMandatoryChunksExist();
1224     RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1225     // create new Sample object and its respective 'wave' list chunk
1226     RIFF::List* wave = wvpl->AddSubList(LIST_TYPE_WAVE);
1227     Sample* pSample = new Sample(this, wave, 0 /*arbitrary value, we update offsets when we save*/);
1228     pSamples->push_back(pSample);
1229     return pSample;
1230     }
1231    
1232     /** @brief Delete a sample.
1233     *
1234     * This will delete the given Sample object from the DLS file. You have
1235     * to call Save() to make this persistent to the file.
1236     *
1237     * @param pSample - sample to delete
1238     */
1239     void File::DeleteSample(Sample* pSample) {
1240 schoenebeck 802 if (!pSamples) return;
1241 schoenebeck 800 SampleList::iterator iter = find(pSamples->begin(), pSamples->end(), pSample);
1242     if (iter == pSamples->end()) return;
1243     pSamples->erase(iter);
1244     delete pSample;
1245     }
1246    
1247 schoenebeck 2 Instrument* File::GetFirstInstrument() {
1248     if (!pInstruments) LoadInstruments();
1249     if (!pInstruments) return NULL;
1250     InstrumentsIterator = pInstruments->begin();
1251     return (InstrumentsIterator != pInstruments->end()) ? *InstrumentsIterator : NULL;
1252     }
1253    
1254     Instrument* File::GetNextInstrument() {
1255     if (!pInstruments) return NULL;
1256     InstrumentsIterator++;
1257     return (InstrumentsIterator != pInstruments->end()) ? *InstrumentsIterator : NULL;
1258     }
1259    
1260     void File::LoadInstruments() {
1261 schoenebeck 823 if (!pInstruments) pInstruments = new InstrumentList;
1262 schoenebeck 2 RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1263     if (lstInstruments) {
1264     RIFF::List* lstInstr = lstInstruments->GetFirstSubList();
1265     while (lstInstr) {
1266     if (lstInstr->GetListType() == LIST_TYPE_INS) {
1267     pInstruments->push_back(new Instrument(this, lstInstr));
1268     }
1269     lstInstr = lstInstruments->GetNextSubList();
1270     }
1271     }
1272     }
1273    
1274 schoenebeck 800 /** @brief Add a new instrument definition.
1275     *
1276     * This will create a new Instrument object for the DLS file. You have
1277     * to call Save() to make this persistent to the file.
1278     *
1279     * @returns pointer to new Instrument object
1280     */
1281     Instrument* File::AddInstrument() {
1282 schoenebeck 809 if (!pInstruments) LoadInstruments();
1283 schoenebeck 800 __ensureMandatoryChunksExist();
1284     RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1285     RIFF::List* lstInstr = lstInstruments->AddSubList(LIST_TYPE_INS);
1286     Instrument* pInstrument = new Instrument(this, lstInstr);
1287     pInstruments->push_back(pInstrument);
1288     return pInstrument;
1289     }
1290 schoenebeck 2
1291 schoenebeck 809 /** @brief Delete an instrument.
1292 schoenebeck 800 *
1293     * This will delete the given Instrument object from the DLS file. You
1294     * have to call Save() to make this persistent to the file.
1295     *
1296     * @param pInstrument - instrument to delete
1297     */
1298     void File::DeleteInstrument(Instrument* pInstrument) {
1299 schoenebeck 802 if (!pInstruments) return;
1300 schoenebeck 800 InstrumentList::iterator iter = find(pInstruments->begin(), pInstruments->end(), pInstrument);
1301     if (iter == pInstruments->end()) return;
1302     pInstruments->erase(iter);
1303     delete pInstrument;
1304     }
1305 schoenebeck 2
1306 schoenebeck 800 /**
1307     * Apply all the DLS file's current instruments, samples and settings to
1308     * the respective RIFF chunks. You have to call Save() to make changes
1309     * persistent.
1310     *
1311     * @throws Exception - on errors
1312     */
1313     void File::UpdateChunks() {
1314     // first update base class's chunks
1315     Resource::UpdateChunks();
1316    
1317     // if version struct exists, update 'vers' chunk
1318     if (pVersion) {
1319     RIFF::Chunk* ckVersion = pRIFF->GetSubChunk(CHUNK_ID_VERS);
1320     if (!ckVersion) ckVersion = pRIFF->AddSubChunk(CHUNK_ID_VERS, 8);
1321     uint8_t* pData = (uint8_t*) ckVersion->LoadChunkData();
1322 persson 918 memcpy(pData, pVersion, 2 * 4);
1323 schoenebeck 800 }
1324    
1325     // update 'colh' chunk
1326     Instruments = (pInstruments) ? pInstruments->size() : 0;
1327     RIFF::Chunk* colh = pRIFF->GetSubChunk(CHUNK_ID_COLH);
1328     if (!colh) colh = pRIFF->AddSubChunk(CHUNK_ID_COLH, 4);
1329     uint8_t* pData = (uint8_t*) colh->LoadChunkData();
1330 persson 918 memcpy(pData, &Instruments, 4);
1331 schoenebeck 800
1332     // update instrument's chunks
1333     if (pInstruments) {
1334     InstrumentList::iterator iter = pInstruments->begin();
1335     InstrumentList::iterator end = pInstruments->end();
1336     for (; iter != end; ++iter) {
1337     (*iter)->UpdateChunks();
1338     }
1339     }
1340    
1341     // update 'ptbl' chunk
1342     const int iSamples = (pSamples) ? pSamples->size() : 0;
1343     const int iPtblOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1344     RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1345     if (!ptbl) ptbl = pRIFF->AddSubChunk(CHUNK_ID_PTBL, 1 /*anything, we'll resize*/);
1346     const int iPtblSize = WavePoolHeaderSize + iPtblOffsetSize * iSamples;
1347     ptbl->Resize(iPtblSize);
1348     pData = (uint8_t*) ptbl->LoadChunkData();
1349     WavePoolCount = iSamples;
1350 persson 918 memcpy(&pData[4], &WavePoolCount, 4);
1351 schoenebeck 800 // we actually update the sample offsets in the pool table when we Save()
1352     memset(&pData[WavePoolHeaderSize], 0, iPtblSize - WavePoolHeaderSize);
1353    
1354     // update sample's chunks
1355     if (pSamples) {
1356     SampleList::iterator iter = pSamples->begin();
1357     SampleList::iterator end = pSamples->end();
1358     for (; iter != end; ++iter) {
1359     (*iter)->UpdateChunks();
1360     }
1361     }
1362     }
1363    
1364     /** @brief Save changes to another file.
1365     *
1366     * Make all changes persistent by writing them to another file.
1367     * <b>Caution:</b> this method is optimized for writing to
1368     * <b>another</b> file, do not use it to save the changes to the same
1369     * file! Use Save() (without path argument) in that case instead!
1370     * Ignoring this might result in a corrupted file!
1371     *
1372     * After calling this method, this File object will be associated with
1373     * the new file (given by \a Path) afterwards.
1374     *
1375     * @param Path - path and file name where everything should be written to
1376     */
1377     void File::Save(const String& Path) {
1378     UpdateChunks();
1379     pRIFF->Save(Path);
1380     __UpdateWavePoolTableChunk();
1381     }
1382    
1383     /** @brief Save changes to same file.
1384     *
1385     * Make all changes persistent by writing them to the actual (same)
1386     * file. The file might temporarily grow to a higher size than it will
1387     * have at the end of the saving process.
1388     *
1389     * @throws RIFF::Exception if any kind of IO error occured
1390     * @throws DLS::Exception if any kind of DLS specific error occured
1391     */
1392     void File::Save() {
1393     UpdateChunks();
1394     pRIFF->Save();
1395     __UpdateWavePoolTableChunk();
1396     }
1397    
1398     /**
1399     * Checks if all (for DLS) mandatory chunks exist, if not they will be
1400     * created. Note that those chunks will not be made persistent until
1401     * Save() was called.
1402     */
1403     void File::__ensureMandatoryChunksExist() {
1404     // enusre 'lins' list chunk exists (mandatory for instrument definitions)
1405     RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
1406     if (!lstInstruments) pRIFF->AddSubList(LIST_TYPE_LINS);
1407     // ensure 'ptbl' chunk exists (mandatory for samples)
1408     RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1409     if (!ptbl) {
1410     const int iOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1411     ptbl = pRIFF->AddSubChunk(CHUNK_ID_PTBL, WavePoolHeaderSize + iOffsetSize);
1412     }
1413     // enusre 'wvpl' list chunk exists (mandatory for samples)
1414     RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1415     if (!wvpl) pRIFF->AddSubList(LIST_TYPE_WVPL);
1416     }
1417    
1418     /**
1419     * Updates (persistently) the wave pool table with offsets to all
1420     * currently available samples. <b>Caution:</b> this method assumes the
1421 schoenebeck 804 * 'ptbl' chunk to be already of the correct size and the file to be
1422     * writable, so usually this method is only called after a Save() call.
1423 schoenebeck 800 *
1424     * @throws Exception - if 'ptbl' chunk is too small (should only occur
1425     * if there's a bug)
1426     */
1427     void File::__UpdateWavePoolTableChunk() {
1428     __UpdateWavePoolTable();
1429     RIFF::Chunk* ptbl = pRIFF->GetSubChunk(CHUNK_ID_PTBL);
1430     const int iOffsetSize = (b64BitWavePoolOffsets) ? 8 : 4;
1431     // check if 'ptbl' chunk is large enough
1432 schoenebeck 802 WavePoolCount = (pSamples) ? pSamples->size() : 0;
1433 schoenebeck 800 const unsigned long ulRequiredSize = WavePoolHeaderSize + iOffsetSize * WavePoolCount;
1434     if (ptbl->GetSize() < ulRequiredSize) throw Exception("Fatal error, 'ptbl' chunk too small");
1435 schoenebeck 804 // save the 'ptbl' chunk's current read/write position
1436     unsigned long ulOriginalPos = ptbl->GetPos();
1437 schoenebeck 800 // update headers
1438 schoenebeck 804 ptbl->SetPos(0);
1439     ptbl->WriteUint32(&WavePoolHeaderSize);
1440     ptbl->WriteUint32(&WavePoolCount);
1441 schoenebeck 800 // update offsets
1442 schoenebeck 804 ptbl->SetPos(WavePoolHeaderSize);
1443 schoenebeck 800 if (b64BitWavePoolOffsets) {
1444     for (int i = 0 ; i < WavePoolCount ; i++) {
1445 schoenebeck 804 ptbl->WriteUint32(&pWavePoolTableHi[i]);
1446     ptbl->WriteUint32(&pWavePoolTable[i]);
1447 schoenebeck 800 }
1448     } else { // conventional 32 bit offsets
1449     for (int i = 0 ; i < WavePoolCount ; i++)
1450 schoenebeck 804 ptbl->WriteUint32(&pWavePoolTable[i]);
1451 schoenebeck 800 }
1452 schoenebeck 804 // restore 'ptbl' chunk's original read/write position
1453     ptbl->SetPos(ulOriginalPos);
1454 schoenebeck 800 }
1455    
1456     /**
1457     * Updates the wave pool table with offsets to all currently available
1458     * samples. <b>Caution:</b> this method assumes the 'wvpl' list chunk
1459     * exists already.
1460     */
1461     void File::__UpdateWavePoolTable() {
1462 schoenebeck 802 WavePoolCount = (pSamples) ? pSamples->size() : 0;
1463 schoenebeck 800 // resize wave pool table arrays
1464     if (pWavePoolTable) delete[] pWavePoolTable;
1465     if (pWavePoolTableHi) delete[] pWavePoolTableHi;
1466     pWavePoolTable = new uint32_t[WavePoolCount];
1467     pWavePoolTableHi = new uint32_t[WavePoolCount];
1468 schoenebeck 802 if (!pSamples) return;
1469 schoenebeck 800 // update offsets int wave pool table
1470     RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL);
1471     uint64_t wvplFileOffset = wvpl->GetFilePos();
1472     if (b64BitWavePoolOffsets) {
1473     SampleList::iterator iter = pSamples->begin();
1474     SampleList::iterator end = pSamples->end();
1475     for (int i = 0 ; iter != end ; ++iter, i++) {
1476 schoenebeck 804 uint64_t _64BitOffset = (*iter)->pWaveList->GetFilePos() - wvplFileOffset - LIST_HEADER_SIZE;
1477 schoenebeck 800 (*iter)->ulWavePoolOffset = _64BitOffset;
1478     pWavePoolTableHi[i] = (uint32_t) (_64BitOffset >> 32);
1479     pWavePoolTable[i] = (uint32_t) _64BitOffset;
1480     }
1481     } else { // conventional 32 bit offsets
1482     SampleList::iterator iter = pSamples->begin();
1483     SampleList::iterator end = pSamples->end();
1484     for (int i = 0 ; iter != end ; ++iter, i++) {
1485 schoenebeck 804 uint64_t _64BitOffset = (*iter)->pWaveList->GetFilePos() - wvplFileOffset - LIST_HEADER_SIZE;
1486 schoenebeck 800 (*iter)->ulWavePoolOffset = _64BitOffset;
1487     pWavePoolTable[i] = (uint32_t) _64BitOffset;
1488     }
1489     }
1490     }
1491    
1492    
1493    
1494 schoenebeck 2 // *************** Exception ***************
1495     // *
1496    
1497     Exception::Exception(String Message) : RIFF::Exception(Message) {
1498     }
1499    
1500     void Exception::PrintMessage() {
1501     std::cout << "DLS::Exception: " << Message << std::endl;
1502     }
1503    
1504 schoenebeck 518
1505     // *************** functions ***************
1506     // *
1507    
1508     /**
1509     * Returns the name of this C++ library. This is usually "libgig" of
1510     * course. This call is equivalent to RIFF::libraryName() and
1511     * gig::libraryName().
1512     */
1513     String libraryName() {
1514     return PACKAGE;
1515     }
1516    
1517     /**
1518     * Returns version of this C++ library. This call is equivalent to
1519     * RIFF::libraryVersion() and gig::libraryVersion().
1520     */
1521     String libraryVersion() {
1522     return VERSION;
1523     }
1524    
1525 schoenebeck 2 } // namespace DLS

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