2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2017 by Christian Schoenebeck * |
* Copyright (C) 2003-2018 by Christian Schoenebeck * |
6 |
* <cuse@users.sourceforge.net> * |
* <cuse@users.sourceforge.net> * |
7 |
* * |
* * |
8 |
* This library is free software; you can redistribute it and/or modify * |
* This library is free software; you can redistribute it and/or modify * |
468 |
TruncatedBits = 0; |
TruncatedBits = 0; |
469 |
if (Compressed) { |
if (Compressed) { |
470 |
uint32_t version = ewav->ReadInt32(); |
uint32_t version = ewav->ReadInt32(); |
471 |
if (version == 3 && BitDepth == 24) { |
if (version > 2 && BitDepth == 24) { |
472 |
Dithered = ewav->ReadInt32(); |
Dithered = ewav->ReadInt32(); |
473 |
ewav->SetPos(Channels == 2 ? 84 : 64); |
ewav->SetPos(Channels == 2 ? 84 : 64); |
474 |
TruncatedBits = ewav->ReadInt32(); |
TruncatedBits = ewav->ReadInt32(); |
1975 |
RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA); |
RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA); |
1976 |
if (!_3ewa) { |
if (!_3ewa) { |
1977 |
File* pFile = (File*) GetParent()->GetParent()->GetParent(); |
File* pFile = (File*) GetParent()->GetParent()->GetParent(); |
1978 |
bool version3 = pFile->pVersion && pFile->pVersion->major == 3; |
bool versiongt2 = pFile->pVersion && pFile->pVersion->major > 2; |
1979 |
_3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, version3 ? 148 : 140); |
_3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, versiongt2 ? 148 : 140); |
1980 |
} |
} |
1981 |
pData = (uint8_t*) _3ewa->LoadChunkData(); |
pData = (uint8_t*) _3ewa->LoadChunkData(); |
1982 |
|
|
3208 |
} |
} |
3209 |
Layers = 1; |
Layers = 1; |
3210 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
3211 |
int dimensionBits = (file->pVersion && file->pVersion->major == 3) ? 8 : 5; |
int dimensionBits = (file->pVersion && file->pVersion->major > 2) ? 8 : 5; |
3212 |
|
|
3213 |
// Actual Loading |
// Actual Loading |
3214 |
|
|
3252 |
UpdateVelocityTable(); |
UpdateVelocityTable(); |
3253 |
|
|
3254 |
// jump to start of the wave pool indices (if not already there) |
// jump to start of the wave pool indices (if not already there) |
3255 |
if (file->pVersion && file->pVersion->major == 3) |
if (file->pVersion && file->pVersion->major > 2) |
3256 |
_3lnk->SetPos(68); // version 3 has a different 3lnk structure |
_3lnk->SetPos(68); // version 3 has a different 3lnk structure |
3257 |
else |
else |
3258 |
_3lnk->SetPos(44); |
_3lnk->SetPos(44); |
3311 |
} |
} |
3312 |
|
|
3313 |
File* pFile = (File*) GetParent()->GetParent(); |
File* pFile = (File*) GetParent()->GetParent(); |
3314 |
bool version3 = pFile->pVersion && pFile->pVersion->major == 3; |
bool versiongt2 = pFile->pVersion && pFile->pVersion->major > 2; |
3315 |
const int iMaxDimensions = version3 ? 8 : 5; |
const int iMaxDimensions = versiongt2 ? 8 : 5; |
3316 |
const int iMaxDimensionRegions = version3 ? 256 : 32; |
const int iMaxDimensionRegions = versiongt2 ? 256 : 32; |
3317 |
|
|
3318 |
// make sure '3lnk' chunk exists |
// make sure '3lnk' chunk exists |
3319 |
RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK); |
RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK); |
3320 |
if (!_3lnk) { |
if (!_3lnk) { |
3321 |
const int _3lnkChunkSize = version3 ? 1092 : 172; |
const int _3lnkChunkSize = versiongt2 ? 1092 : 172; |
3322 |
_3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize); |
_3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize); |
3323 |
memset(_3lnk->LoadChunkData(), 0, _3lnkChunkSize); |
memset(_3lnk->LoadChunkData(), 0, _3lnkChunkSize); |
3324 |
|
|
3342 |
} |
} |
3343 |
|
|
3344 |
// update wave pool table in '3lnk' chunk |
// update wave pool table in '3lnk' chunk |
3345 |
const int iWavePoolOffset = version3 ? 68 : 44; |
const int iWavePoolOffset = versiongt2 ? 68 : 44; |
3346 |
for (uint i = 0; i < iMaxDimensionRegions; i++) { |
for (uint i = 0; i < iMaxDimensionRegions; i++) { |
3347 |
int iWaveIndex = -1; |
int iWaveIndex = -1; |
3348 |
if (i < DimensionRegions) { |
if (i < DimensionRegions) { |
3485 |
|
|
3486 |
// check if max. amount of dimensions reached |
// check if max. amount of dimensions reached |
3487 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
3488 |
const int iMaxDimensions = (file->pVersion && file->pVersion->major == 3) ? 8 : 5; |
const int iMaxDimensions = (file->pVersion && file->pVersion->major > 2) ? 8 : 5; |
3489 |
if (Dimensions >= iMaxDimensions) |
if (Dimensions >= iMaxDimensions) |
3490 |
throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimensions already reached"); |
throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimensions already reached"); |
3491 |
// check if max. amount of dimension bits reached |
// check if max. amount of dimension bits reached |
4143 |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
4144 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
4145 |
if (!file->pWavePoolTable) return NULL; |
if (!file->pWavePoolTable) return NULL; |
4146 |
|
if (WavePoolTableIndex + 1 > file->WavePoolCount) return NULL; |
4147 |
// for new files or files >= 2 GB use 64 bit wave pool offsets |
// for new files or files >= 2 GB use 64 bit wave pool offsets |
4148 |
if (file->pRIFF->IsNew() || (file->pRIFF->GetCurrentFileSize() >> 31)) { |
if (file->pRIFF->IsNew() || (file->pRIFF->GetCurrentFileSize() >> 31)) { |
4149 |
// use 64 bit wave pool offsets (treating this as large file) |
// use 64 bit wave pool offsets (treating this as large file) |
4817 |
File* pFile = (File*) GetParent(); |
File* pFile = (File*) GetParent(); |
4818 |
|
|
4819 |
// 3ewg is bigger in gig3, as it includes the iMIDI rules |
// 3ewg is bigger in gig3, as it includes the iMIDI rules |
4820 |
int size = (pFile->pVersion && pFile->pVersion->major == 3) ? 16416 : 12; |
int size = (pFile->pVersion && pFile->pVersion->major > 2) ? 16416 : 12; |
4821 |
_3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size); |
_3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size); |
4822 |
memset(_3ewg->LoadChunkData(), 0, size); |
memset(_3ewg->LoadChunkData(), 0, size); |
4823 |
} |
} |
5399 |
RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL); |
RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL); |
5400 |
if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL); |
if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL); |
5401 |
|
|
5402 |
if (!pNameChunk && pFile->pVersion && pFile->pVersion->major == 3) { |
if (!pNameChunk && pFile->pVersion && pFile->pVersion->major > 2) { |
5403 |
// v3 has a fixed list of 128 strings, find a free one |
// v3 has a fixed list of 128 strings, find a free one |
5404 |
for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) { |
for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) { |
5405 |
if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) { |
if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) { |
5494 |
0, 3, 20030331 & 0xffff, 20030331 >> 16 |
0, 3, 20030331 & 0xffff, 20030331 >> 16 |
5495 |
}; |
}; |
5496 |
|
|
5497 |
|
/// Reflects Gigasampler file format version 4.0 (2007-10-12). |
5498 |
|
const DLS::version_t File::VERSION_4 = { |
5499 |
|
0, 4, 20071012 & 0xffff, 20071012 >> 16 |
5500 |
|
}; |
5501 |
|
|
5502 |
static const DLS::Info::string_length_t _FileFixedStringLengths[] = { |
static const DLS::Info::string_length_t _FileFixedStringLengths[] = { |
5503 |
{ CHUNK_ID_IARL, 256 }, |
{ CHUNK_ID_IARL, 256 }, |
5504 |
{ CHUNK_ID_IART, 128 }, |
{ CHUNK_ID_IART, 128 }, |
5595 |
return static_cast<gig::Sample*>( *it ); |
return static_cast<gig::Sample*>( *it ); |
5596 |
} |
} |
5597 |
|
|
5598 |
|
/** |
5599 |
|
* Returns the total amount of samples of this gig file. |
5600 |
|
* |
5601 |
|
* Note that this method might block for a long time in case it is required |
5602 |
|
* to load the sample info for the first time. |
5603 |
|
* |
5604 |
|
* @returns total amount of samples |
5605 |
|
*/ |
5606 |
|
size_t File::CountSamples() { |
5607 |
|
if (!pSamples) LoadSamples(); |
5608 |
|
if (!pSamples) return 0; |
5609 |
|
return pSamples->size(); |
5610 |
|
} |
5611 |
|
|
5612 |
/** @brief Add a new sample. |
/** @brief Add a new sample. |
5613 |
* |
* |
5614 |
* This will create a new Sample object for the gig file. You have to |
* This will create a new Sample object for the gig file. You have to |
5744 |
} |
} |
5745 |
|
|
5746 |
/** |
/** |
5747 |
|
* Returns the total amount of instruments of this gig file. |
5748 |
|
* |
5749 |
|
* Note that this method might block for a long time in case it is required |
5750 |
|
* to load the instruments info for the first time. |
5751 |
|
* |
5752 |
|
* @returns total amount of instruments |
5753 |
|
*/ |
5754 |
|
size_t File::CountInstruments() { |
5755 |
|
if (!pInstruments) LoadInstruments(); |
5756 |
|
if (!pInstruments) return 0; |
5757 |
|
return pInstruments->size(); |
5758 |
|
} |
5759 |
|
|
5760 |
|
/** |
5761 |
* Returns the instrument with the given index. |
* Returns the instrument with the given index. |
5762 |
* |
* |
5763 |
* @param index - number of the sought instrument (0..n) |
* @param index - number of the sought instrument (0..n) |
6076 |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
6077 |
// the order of einf and 3crc is not the same in v2 and v3 |
// the order of einf and 3crc is not the same in v2 and v3 |
6078 |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
6079 |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
if (einf && pVersion && pVersion->major > 2) pRIFF->MoveSubChunk(_3crc, einf); |
6080 |
bRequiresSave = true; |
bRequiresSave = true; |
6081 |
} else if (_3crc->GetNewSize() != pSamples->size() * 8) { |
} else if (_3crc->GetNewSize() != pSamples->size() * 8) { |
6082 |
_3crc->Resize(pSamples->size() * 8); |
_3crc->Resize(pSamples->size() * 8); |
6225 |
RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk(); |
RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk(); |
6226 |
while (ck) { |
while (ck) { |
6227 |
if (ck->GetChunkID() == CHUNK_ID_3GNM) { |
if (ck->GetChunkID() == CHUNK_ID_3GNM) { |
6228 |
if (pVersion && pVersion->major == 3 && |
if (pVersion && pVersion->major > 2 && |
6229 |
strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break; |
strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break; |
6230 |
|
|
6231 |
pGroups->push_back(new Group(this, ck)); |
pGroups->push_back(new Group(this, ck)); |
6401 |
|
|
6402 |
// v3: make sure the file has 128 3gnm chunks |
// v3: make sure the file has 128 3gnm chunks |
6403 |
// (before updating the Group chunks) |
// (before updating the Group chunks) |
6404 |
if (pVersion && pVersion->major == 3) { |
if (pVersion && pVersion->major > 2) { |
6405 |
RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk(); |
RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk(); |
6406 |
for (int i = 0 ; i < 128 ; i++) { |
for (int i = 0 ; i < 128 ; i++) { |
6407 |
if (i >= pGroups->size()) ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64); |
if (i >= pGroups->size()) ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64); |
6547 |
} else /*if (newFile)*/ { |
} else /*if (newFile)*/ { |
6548 |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
6549 |
// the order of einf and 3crc is not the same in v2 and v3 |
// the order of einf and 3crc is not the same in v2 and v3 |
6550 |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
if (einf && pVersion && pVersion->major > 2) pRIFF->MoveSubChunk(_3crc, einf); |
6551 |
} |
} |
6552 |
{ // must be performed in RAM here ... |
{ // must be performed in RAM here ... |
6553 |
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |