2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2015 by Christian Schoenebeck * |
* Copyright (C) 2003-2017 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 * |
30 |
#include <iostream> |
#include <iostream> |
31 |
#include <assert.h> |
#include <assert.h> |
32 |
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33 |
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/// libgig's current file format version (for extending the original Giga file |
34 |
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/// format with libgig's own custom data / custom features). |
35 |
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#define GIG_FILE_EXT_VERSION 2 |
36 |
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37 |
/// Initial size of the sample buffer which is used for decompression of |
/// Initial size of the sample buffer which is used for decompression of |
38 |
/// compressed sample wave streams - this value should always be bigger than |
/// compressed sample wave streams - this value should always be bigger than |
39 |
/// the biggest sample piece expected to be read by the sampler engine, |
/// the biggest sample piece expected to be read by the sampler engine, |
55 |
#define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) |
#define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) |
56 |
#define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) |
#define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) |
57 |
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58 |
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#define SRLZ(member) \ |
59 |
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archive->serializeMember(*this, member, #member); |
60 |
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61 |
namespace gig { |
namespace gig { |
62 |
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63 |
// *************** Internal functions for sample decompression *************** |
// *************** Internal functions for sample decompression *************** |
98 |
void Decompress16(int compressionmode, const unsigned char* params, |
void Decompress16(int compressionmode, const unsigned char* params, |
99 |
int srcStep, int dstStep, |
int srcStep, int dstStep, |
100 |
const unsigned char* pSrc, int16_t* pDst, |
const unsigned char* pSrc, int16_t* pDst, |
101 |
unsigned long currentframeoffset, |
file_offset_t currentframeoffset, |
102 |
unsigned long copysamples) |
file_offset_t copysamples) |
103 |
{ |
{ |
104 |
switch (compressionmode) { |
switch (compressionmode) { |
105 |
case 0: // 16 bit uncompressed |
case 0: // 16 bit uncompressed |
135 |
|
|
136 |
void Decompress24(int compressionmode, const unsigned char* params, |
void Decompress24(int compressionmode, const unsigned char* params, |
137 |
int dstStep, const unsigned char* pSrc, uint8_t* pDst, |
int dstStep, const unsigned char* pSrc, uint8_t* pDst, |
138 |
unsigned long currentframeoffset, |
file_offset_t currentframeoffset, |
139 |
unsigned long copysamples, int truncatedBits) |
file_offset_t copysamples, int truncatedBits) |
140 |
{ |
{ |
141 |
int y, dy, ddy, dddy; |
int y, dy, ddy, dddy; |
142 |
|
|
272 |
* steps. |
* steps. |
273 |
* |
* |
274 |
* Once the whole data was processed by __calculateCRC(), one should |
* Once the whole data was processed by __calculateCRC(), one should |
275 |
* call __encodeCRC() to get the final CRC result. |
* call __finalizeCRC() to get the final CRC result. |
276 |
* |
* |
277 |
* @param buf - pointer to data the CRC shall be calculated of |
* @param buf - pointer to data the CRC shall be calculated of |
278 |
* @param bufSize - size of the data to be processed |
* @param bufSize - size of the data to be processed |
279 |
* @param crc - variable the CRC sum shall be stored to |
* @param crc - variable the CRC sum shall be stored to |
280 |
*/ |
*/ |
281 |
static void __calculateCRC(unsigned char* buf, int bufSize, uint32_t& crc) { |
static void __calculateCRC(unsigned char* buf, size_t bufSize, uint32_t& crc) { |
282 |
for (int i = 0 ; i < bufSize ; i++) { |
for (size_t i = 0 ; i < bufSize ; i++) { |
283 |
crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); |
crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); |
284 |
} |
} |
285 |
} |
} |
289 |
* |
* |
290 |
* @param crc - variable previously passed to __calculateCRC() |
* @param crc - variable previously passed to __calculateCRC() |
291 |
*/ |
*/ |
292 |
inline static uint32_t __encodeCRC(const uint32_t& crc) { |
inline static void __finalizeCRC(uint32_t& crc) { |
293 |
return crc ^ 0xffffffff; |
crc ^= 0xffffffff; |
294 |
} |
} |
295 |
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296 |
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318 |
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319 |
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320 |
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321 |
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// *************** leverage_ctrl_t *************** |
322 |
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// * |
323 |
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324 |
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void leverage_ctrl_t::serialize(Serialization::Archive* archive) { |
325 |
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SRLZ(type); |
326 |
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SRLZ(controller_number); |
327 |
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} |
328 |
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329 |
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330 |
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331 |
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// *************** crossfade_t *************** |
332 |
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// * |
333 |
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334 |
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void crossfade_t::serialize(Serialization::Archive* archive) { |
335 |
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SRLZ(in_start); |
336 |
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SRLZ(in_end); |
337 |
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SRLZ(out_start); |
338 |
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SRLZ(out_end); |
339 |
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} |
340 |
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341 |
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342 |
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343 |
// *************** Sample *************** |
// *************** Sample *************** |
344 |
// * |
// * |
345 |
|
|
346 |
unsigned int Sample::Instances = 0; |
size_t Sample::Instances = 0; |
347 |
buffer_t Sample::InternalDecompressionBuffer; |
buffer_t Sample::InternalDecompressionBuffer; |
348 |
|
|
349 |
/** @brief Constructor. |
/** @brief Constructor. |
363 |
* ('wvpl') list chunk |
* ('wvpl') list chunk |
364 |
* @param fileNo - number of an extension file where this sample |
* @param fileNo - number of an extension file where this sample |
365 |
* is located, 0 otherwise |
* is located, 0 otherwise |
366 |
|
* @param index - wave pool index of sample (may be -1 on new sample) |
367 |
*/ |
*/ |
368 |
Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset, unsigned long fileNo) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { |
Sample::Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset, unsigned long fileNo, int index) |
369 |
|
: DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) |
370 |
|
{ |
371 |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
372 |
{ CHUNK_ID_INAM, 64 }, |
{ CHUNK_ID_INAM, 64 }, |
373 |
{ 0, 0 } |
{ 0, 0 } |
377 |
FileNo = fileNo; |
FileNo = fileNo; |
378 |
|
|
379 |
__resetCRC(crc); |
__resetCRC(crc); |
380 |
|
// if this is not a new sample, try to get the sample's already existing |
381 |
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// CRC32 checksum from disk, this checksum will reflect the sample's CRC32 |
382 |
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// checksum of the time when the sample was consciously modified by the |
383 |
|
// user for the last time (by calling Sample::Write() that is). |
384 |
|
if (index >= 0) { // not a new file ... |
385 |
|
try { |
386 |
|
uint32_t crc = pFile->GetSampleChecksumByIndex(index); |
387 |
|
this->crc = crc; |
388 |
|
} catch (...) {} |
389 |
|
} |
390 |
|
|
391 |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
392 |
if (pCk3gix) { |
if (pCk3gix) { |
519 |
const int iReadAtOnce = 32*1024; |
const int iReadAtOnce = 32*1024; |
520 |
char* buf = new char[iReadAtOnce * orig->FrameSize]; |
char* buf = new char[iReadAtOnce * orig->FrameSize]; |
521 |
Sample* pOrig = (Sample*) orig; //HACK: remove constness for now |
Sample* pOrig = (Sample*) orig; //HACK: remove constness for now |
522 |
unsigned long restorePos = pOrig->GetPos(); |
file_offset_t restorePos = pOrig->GetPos(); |
523 |
pOrig->SetPos(0); |
pOrig->SetPos(0); |
524 |
SetPos(0); |
SetPos(0); |
525 |
for (unsigned long n = pOrig->Read(buf, iReadAtOnce); n; |
for (file_offset_t n = pOrig->Read(buf, iReadAtOnce); n; |
526 |
n = pOrig->Read(buf, iReadAtOnce)) |
n = pOrig->Read(buf, iReadAtOnce)) |
527 |
{ |
{ |
528 |
Write(buf, n); |
Write(buf, n); |
607 |
void Sample::ScanCompressedSample() { |
void Sample::ScanCompressedSample() { |
608 |
//TODO: we have to add some more scans here (e.g. determine compression rate) |
//TODO: we have to add some more scans here (e.g. determine compression rate) |
609 |
this->SamplesTotal = 0; |
this->SamplesTotal = 0; |
610 |
std::list<unsigned long> frameOffsets; |
std::list<file_offset_t> frameOffsets; |
611 |
|
|
612 |
SamplesPerFrame = BitDepth == 24 ? 256 : 2048; |
SamplesPerFrame = BitDepth == 24 ? 256 : 2048; |
613 |
WorstCaseFrameSize = SamplesPerFrame * FrameSize + Channels; // +Channels for compression flag |
WorstCaseFrameSize = SamplesPerFrame * FrameSize + Channels; // +Channels for compression flag |
623 |
const int mode_l = pCkData->ReadUint8(); |
const int mode_l = pCkData->ReadUint8(); |
624 |
const int mode_r = pCkData->ReadUint8(); |
const int mode_r = pCkData->ReadUint8(); |
625 |
if (mode_l > 5 || mode_r > 5) throw gig::Exception("Unknown compression mode"); |
if (mode_l > 5 || mode_r > 5) throw gig::Exception("Unknown compression mode"); |
626 |
const unsigned long frameSize = bytesPerFrame[mode_l] + bytesPerFrame[mode_r]; |
const file_offset_t frameSize = bytesPerFrame[mode_l] + bytesPerFrame[mode_r]; |
627 |
|
|
628 |
if (pCkData->RemainingBytes() <= frameSize) { |
if (pCkData->RemainingBytes() <= frameSize) { |
629 |
SamplesInLastFrame = |
SamplesInLastFrame = |
642 |
|
|
643 |
const int mode = pCkData->ReadUint8(); |
const int mode = pCkData->ReadUint8(); |
644 |
if (mode > 5) throw gig::Exception("Unknown compression mode"); |
if (mode > 5) throw gig::Exception("Unknown compression mode"); |
645 |
const unsigned long frameSize = bytesPerFrame[mode]; |
const file_offset_t frameSize = bytesPerFrame[mode]; |
646 |
|
|
647 |
if (pCkData->RemainingBytes() <= frameSize) { |
if (pCkData->RemainingBytes() <= frameSize) { |
648 |
SamplesInLastFrame = |
SamplesInLastFrame = |
658 |
|
|
659 |
// Build the frames table (which is used for fast resolving of a frame's chunk offset) |
// Build the frames table (which is used for fast resolving of a frame's chunk offset) |
660 |
if (FrameTable) delete[] FrameTable; |
if (FrameTable) delete[] FrameTable; |
661 |
FrameTable = new unsigned long[frameOffsets.size()]; |
FrameTable = new file_offset_t[frameOffsets.size()]; |
662 |
std::list<unsigned long>::iterator end = frameOffsets.end(); |
std::list<file_offset_t>::iterator end = frameOffsets.end(); |
663 |
std::list<unsigned long>::iterator iter = frameOffsets.begin(); |
std::list<file_offset_t>::iterator iter = frameOffsets.begin(); |
664 |
for (int i = 0; iter != end; i++, iter++) { |
for (int i = 0; iter != end; i++, iter++) { |
665 |
FrameTable[i] = *iter; |
FrameTable[i] = *iter; |
666 |
} |
} |
701 |
* the cached sample data in bytes |
* the cached sample data in bytes |
702 |
* @see ReleaseSampleData(), Read(), SetPos() |
* @see ReleaseSampleData(), Read(), SetPos() |
703 |
*/ |
*/ |
704 |
buffer_t Sample::LoadSampleData(unsigned long SampleCount) { |
buffer_t Sample::LoadSampleData(file_offset_t SampleCount) { |
705 |
return LoadSampleDataWithNullSamplesExtension(SampleCount, 0); // 0 amount of NullSamples |
return LoadSampleDataWithNullSamplesExtension(SampleCount, 0); // 0 amount of NullSamples |
706 |
} |
} |
707 |
|
|
760 |
* size of the cached sample data in bytes |
* size of the cached sample data in bytes |
761 |
* @see ReleaseSampleData(), Read(), SetPos() |
* @see ReleaseSampleData(), Read(), SetPos() |
762 |
*/ |
*/ |
763 |
buffer_t Sample::LoadSampleDataWithNullSamplesExtension(unsigned long SampleCount, uint NullSamplesCount) { |
buffer_t Sample::LoadSampleDataWithNullSamplesExtension(file_offset_t SampleCount, uint NullSamplesCount) { |
764 |
if (SampleCount > this->SamplesTotal) SampleCount = this->SamplesTotal; |
if (SampleCount > this->SamplesTotal) SampleCount = this->SamplesTotal; |
765 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
766 |
unsigned long allocationsize = (SampleCount + NullSamplesCount) * this->FrameSize; |
file_offset_t allocationsize = (SampleCount + NullSamplesCount) * this->FrameSize; |
767 |
SetPos(0); // reset read position to begin of sample |
SetPos(0); // reset read position to begin of sample |
768 |
RAMCache.pStart = new int8_t[allocationsize]; |
RAMCache.pStart = new int8_t[allocationsize]; |
769 |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * this->FrameSize; |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * this->FrameSize; |
827 |
* FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with |
* FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with |
828 |
* other formats will fail! |
* other formats will fail! |
829 |
* |
* |
830 |
* @param iNewSize - new sample wave data size in sample points (must be |
* @param NewSize - new sample wave data size in sample points (must be |
831 |
* greater than zero) |
* greater than zero) |
832 |
* @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM |
* @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM |
833 |
* or if \a iNewSize is less than 1 |
* @throws DLS::Exception if \a NewSize is less than 1 or unrealistic large |
834 |
* @throws gig::Exception if existing sample is compressed |
* @throws gig::Exception if existing sample is compressed |
835 |
* @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, |
* @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, |
836 |
* DLS::Sample::FormatTag, File::Save() |
* DLS::Sample::FormatTag, File::Save() |
837 |
*/ |
*/ |
838 |
void Sample::Resize(int iNewSize) { |
void Sample::Resize(file_offset_t NewSize) { |
839 |
if (Compressed) throw gig::Exception("There is no support for modifying compressed samples (yet)"); |
if (Compressed) throw gig::Exception("There is no support for modifying compressed samples (yet)"); |
840 |
DLS::Sample::Resize(iNewSize); |
DLS::Sample::Resize(NewSize); |
841 |
} |
} |
842 |
|
|
843 |
/** |
/** |
861 |
* @returns the new sample position |
* @returns the new sample position |
862 |
* @see Read() |
* @see Read() |
863 |
*/ |
*/ |
864 |
unsigned long Sample::SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence) { |
file_offset_t Sample::SetPos(file_offset_t SampleCount, RIFF::stream_whence_t Whence) { |
865 |
if (Compressed) { |
if (Compressed) { |
866 |
switch (Whence) { |
switch (Whence) { |
867 |
case RIFF::stream_curpos: |
case RIFF::stream_curpos: |
879 |
} |
} |
880 |
if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; |
if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; |
881 |
|
|
882 |
unsigned long frame = this->SamplePos / 2048; // to which frame to jump |
file_offset_t frame = this->SamplePos / 2048; // to which frame to jump |
883 |
this->FrameOffset = this->SamplePos % 2048; // offset (in sample points) within that frame |
this->FrameOffset = this->SamplePos % 2048; // offset (in sample points) within that frame |
884 |
pCkData->SetPos(FrameTable[frame]); // set chunk pointer to the start of sought frame |
pCkData->SetPos(FrameTable[frame]); // set chunk pointer to the start of sought frame |
885 |
return this->SamplePos; |
return this->SamplePos; |
886 |
} |
} |
887 |
else { // not compressed |
else { // not compressed |
888 |
unsigned long orderedBytes = SampleCount * this->FrameSize; |
file_offset_t orderedBytes = SampleCount * this->FrameSize; |
889 |
unsigned long result = pCkData->SetPos(orderedBytes, Whence); |
file_offset_t result = pCkData->SetPos(orderedBytes, Whence); |
890 |
return (result == orderedBytes) ? SampleCount |
return (result == orderedBytes) ? SampleCount |
891 |
: result / this->FrameSize; |
: result / this->FrameSize; |
892 |
} |
} |
895 |
/** |
/** |
896 |
* Returns the current position in the sample (in sample points). |
* Returns the current position in the sample (in sample points). |
897 |
*/ |
*/ |
898 |
unsigned long Sample::GetPos() const { |
file_offset_t Sample::GetPos() const { |
899 |
if (Compressed) return SamplePos; |
if (Compressed) return SamplePos; |
900 |
else return pCkData->GetPos() / FrameSize; |
else return pCkData->GetPos() / FrameSize; |
901 |
} |
} |
934 |
* @returns number of successfully read sample points |
* @returns number of successfully read sample points |
935 |
* @see CreateDecompressionBuffer() |
* @see CreateDecompressionBuffer() |
936 |
*/ |
*/ |
937 |
unsigned long Sample::ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, |
file_offset_t Sample::ReadAndLoop(void* pBuffer, file_offset_t SampleCount, playback_state_t* pPlaybackState, |
938 |
DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer) { |
DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer) { |
939 |
unsigned long samplestoread = SampleCount, totalreadsamples = 0, readsamples, samplestoloopend; |
file_offset_t samplestoread = SampleCount, totalreadsamples = 0, readsamples, samplestoloopend; |
940 |
uint8_t* pDst = (uint8_t*) pBuffer; |
uint8_t* pDst = (uint8_t*) pBuffer; |
941 |
|
|
942 |
SetPos(pPlaybackState->position); // recover position from the last time |
SetPos(pPlaybackState->position); // recover position from the last time |
974 |
// reading, swap all sample frames so it reflects |
// reading, swap all sample frames so it reflects |
975 |
// backward playback |
// backward playback |
976 |
|
|
977 |
unsigned long swapareastart = totalreadsamples; |
file_offset_t swapareastart = totalreadsamples; |
978 |
unsigned long loopoffset = GetPos() - loop.LoopStart; |
file_offset_t loopoffset = GetPos() - loop.LoopStart; |
979 |
unsigned long samplestoreadinloop = Min(samplestoread, loopoffset); |
file_offset_t samplestoreadinloop = Min(samplestoread, loopoffset); |
980 |
unsigned long reverseplaybackend = GetPos() - samplestoreadinloop; |
file_offset_t reverseplaybackend = GetPos() - samplestoreadinloop; |
981 |
|
|
982 |
SetPos(reverseplaybackend); |
SetPos(reverseplaybackend); |
983 |
|
|
1025 |
// reading, swap all sample frames so it reflects |
// reading, swap all sample frames so it reflects |
1026 |
// backward playback |
// backward playback |
1027 |
|
|
1028 |
unsigned long swapareastart = totalreadsamples; |
file_offset_t swapareastart = totalreadsamples; |
1029 |
unsigned long loopoffset = GetPos() - loop.LoopStart; |
file_offset_t loopoffset = GetPos() - loop.LoopStart; |
1030 |
unsigned long samplestoreadinloop = (this->LoopPlayCount) ? Min(samplestoread, pPlaybackState->loop_cycles_left * loop.LoopLength - loopoffset) |
file_offset_t samplestoreadinloop = (this->LoopPlayCount) ? Min(samplestoread, pPlaybackState->loop_cycles_left * loop.LoopLength - loopoffset) |
1031 |
: samplestoread; |
: samplestoread; |
1032 |
unsigned long reverseplaybackend = loop.LoopStart + Abs((loopoffset - samplestoreadinloop) % loop.LoopLength); |
file_offset_t reverseplaybackend = loop.LoopStart + Abs((loopoffset - samplestoreadinloop) % loop.LoopLength); |
1033 |
|
|
1034 |
SetPos(reverseplaybackend); |
SetPos(reverseplaybackend); |
1035 |
|
|
1109 |
* @returns number of successfully read sample points |
* @returns number of successfully read sample points |
1110 |
* @see SetPos(), CreateDecompressionBuffer() |
* @see SetPos(), CreateDecompressionBuffer() |
1111 |
*/ |
*/ |
1112 |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer) { |
file_offset_t Sample::Read(void* pBuffer, file_offset_t SampleCount, buffer_t* pExternalDecompressionBuffer) { |
1113 |
if (SampleCount == 0) return 0; |
if (SampleCount == 0) return 0; |
1114 |
if (!Compressed) { |
if (!Compressed) { |
1115 |
if (BitDepth == 24) { |
if (BitDepth == 24) { |
1124 |
else { |
else { |
1125 |
if (this->SamplePos >= this->SamplesTotal) return 0; |
if (this->SamplePos >= this->SamplesTotal) return 0; |
1126 |
//TODO: efficiency: maybe we should test for an average compression rate |
//TODO: efficiency: maybe we should test for an average compression rate |
1127 |
unsigned long assumedsize = GuessSize(SampleCount), |
file_offset_t assumedsize = GuessSize(SampleCount), |
1128 |
remainingbytes = 0, // remaining bytes in the local buffer |
remainingbytes = 0, // remaining bytes in the local buffer |
1129 |
remainingsamples = SampleCount, |
remainingsamples = SampleCount, |
1130 |
copysamples, skipsamples, |
copysamples, skipsamples, |
1147 |
remainingbytes = pCkData->Read(pSrc, assumedsize, 1); |
remainingbytes = pCkData->Read(pSrc, assumedsize, 1); |
1148 |
|
|
1149 |
while (remainingsamples && remainingbytes) { |
while (remainingsamples && remainingbytes) { |
1150 |
unsigned long framesamples = SamplesPerFrame; |
file_offset_t framesamples = SamplesPerFrame; |
1151 |
unsigned long framebytes, rightChannelOffset = 0, nextFrameOffset; |
file_offset_t framebytes, rightChannelOffset = 0, nextFrameOffset; |
1152 |
|
|
1153 |
int mode_l = *pSrc++, mode_r = 0; |
int mode_l = *pSrc++, mode_r = 0; |
1154 |
|
|
1298 |
* @throws gig::Exception if sample is compressed |
* @throws gig::Exception if sample is compressed |
1299 |
* @see DLS::LoadSampleData() |
* @see DLS::LoadSampleData() |
1300 |
*/ |
*/ |
1301 |
unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) { |
file_offset_t Sample::Write(void* pBuffer, file_offset_t SampleCount) { |
1302 |
if (Compressed) throw gig::Exception("There is no support for writing compressed gig samples (yet)"); |
if (Compressed) throw gig::Exception("There is no support for writing compressed gig samples (yet)"); |
1303 |
|
|
1304 |
// if this is the first write in this sample, reset the |
// if this is the first write in this sample, reset the |
1307 |
__resetCRC(crc); |
__resetCRC(crc); |
1308 |
} |
} |
1309 |
if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small"); |
if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small"); |
1310 |
unsigned long res; |
file_offset_t res; |
1311 |
if (BitDepth == 24) { |
if (BitDepth == 24) { |
1312 |
res = pCkData->Write(pBuffer, SampleCount * FrameSize, 1) / FrameSize; |
res = pCkData->Write(pBuffer, SampleCount * FrameSize, 1) / FrameSize; |
1313 |
} else { // 16 bit |
} else { // 16 bit |
1319 |
// if this is the last write, update the checksum chunk in the |
// if this is the last write, update the checksum chunk in the |
1320 |
// file |
// file |
1321 |
if (pCkData->GetPos() == pCkData->GetSize()) { |
if (pCkData->GetPos() == pCkData->GetSize()) { |
1322 |
|
__finalizeCRC(crc); |
1323 |
File* pFile = static_cast<File*>(GetParent()); |
File* pFile = static_cast<File*>(GetParent()); |
1324 |
pFile->SetSampleChecksum(this, __encodeCRC(crc)); |
pFile->SetSampleChecksum(this, crc); |
1325 |
} |
} |
1326 |
return res; |
return res; |
1327 |
} |
} |
1342 |
* @returns allocated decompression buffer |
* @returns allocated decompression buffer |
1343 |
* @see DestroyDecompressionBuffer() |
* @see DestroyDecompressionBuffer() |
1344 |
*/ |
*/ |
1345 |
buffer_t Sample::CreateDecompressionBuffer(unsigned long MaxReadSize) { |
buffer_t Sample::CreateDecompressionBuffer(file_offset_t MaxReadSize) { |
1346 |
buffer_t result; |
buffer_t result; |
1347 |
const double worstCaseHeaderOverhead = |
const double worstCaseHeaderOverhead = |
1348 |
(256.0 /*frame size*/ + 12.0 /*header*/ + 2.0 /*compression type flag (stereo)*/) / 256.0; |
(256.0 /*frame size*/ + 12.0 /*header*/ + 2.0 /*compression type flag (stereo)*/) / 256.0; |
1349 |
result.Size = (unsigned long) (double(MaxReadSize) * 3.0 /*(24 Bit)*/ * 2.0 /*stereo*/ * worstCaseHeaderOverhead); |
result.Size = (file_offset_t) (double(MaxReadSize) * 3.0 /*(24 Bit)*/ * 2.0 /*stereo*/ * worstCaseHeaderOverhead); |
1350 |
result.pStart = new int8_t[result.Size]; |
result.pStart = new int8_t[result.Size]; |
1351 |
result.NullExtensionSize = 0; |
result.NullExtensionSize = 0; |
1352 |
return result; |
return result; |
1380 |
return pGroup; |
return pGroup; |
1381 |
} |
} |
1382 |
|
|
1383 |
|
/** |
1384 |
|
* Returns the CRC-32 checksum of the sample's raw wave form data at the |
1385 |
|
* time when this sample's wave form data was modified for the last time |
1386 |
|
* by calling Write(). This checksum only covers the raw wave form data, |
1387 |
|
* not any meta informations like i.e. bit depth or loop points. Since |
1388 |
|
* this method just returns the checksum stored for this sample i.e. when |
1389 |
|
* the gig file was loaded, this method returns immediately. So it does no |
1390 |
|
* recalcuation of the checksum with the currently available sample wave |
1391 |
|
* form data. |
1392 |
|
* |
1393 |
|
* @see VerifyWaveData() |
1394 |
|
*/ |
1395 |
|
uint32_t Sample::GetWaveDataCRC32Checksum() { |
1396 |
|
return crc; |
1397 |
|
} |
1398 |
|
|
1399 |
|
/** |
1400 |
|
* Checks the integrity of this sample's raw audio wave data. Whenever a |
1401 |
|
* Sample's raw wave data is intentionally modified (i.e. by calling |
1402 |
|
* Write() and supplying the new raw audio wave form data) a CRC32 checksum |
1403 |
|
* is calculated and stored/updated for this sample, along to the sample's |
1404 |
|
* meta informations. |
1405 |
|
* |
1406 |
|
* Now by calling this method the current raw audio wave data is checked |
1407 |
|
* against the already stored CRC32 check sum in order to check whether the |
1408 |
|
* sample data had been damaged unintentionally for some reason. Since by |
1409 |
|
* calling this method always the entire raw audio wave data has to be |
1410 |
|
* read, verifying all samples this way may take a long time accordingly. |
1411 |
|
* And that's also the reason why the sample integrity is not checked by |
1412 |
|
* default whenever a gig file is loaded. So this method must be called |
1413 |
|
* explicitly to fulfill this task. |
1414 |
|
* |
1415 |
|
* @param pActually - (optional) if provided, will be set to the actually |
1416 |
|
* calculated checksum of the current raw wave form data, |
1417 |
|
* you can get the expected checksum instead by calling |
1418 |
|
* GetWaveDataCRC32Checksum() |
1419 |
|
* @returns true if sample is OK or false if the sample is damaged |
1420 |
|
* @throws Exception if no checksum had been stored to disk for this |
1421 |
|
* sample yet, or on I/O issues |
1422 |
|
* @see GetWaveDataCRC32Checksum() |
1423 |
|
*/ |
1424 |
|
bool Sample::VerifyWaveData(uint32_t* pActually) { |
1425 |
|
//File* pFile = static_cast<File*>(GetParent()); |
1426 |
|
uint32_t crc = CalculateWaveDataChecksum(); |
1427 |
|
if (pActually) *pActually = crc; |
1428 |
|
return crc == this->crc; |
1429 |
|
} |
1430 |
|
|
1431 |
|
uint32_t Sample::CalculateWaveDataChecksum() { |
1432 |
|
const size_t sz = 20*1024; // 20kB buffer size |
1433 |
|
std::vector<uint8_t> buffer(sz); |
1434 |
|
buffer.resize(sz); |
1435 |
|
|
1436 |
|
const size_t n = sz / FrameSize; |
1437 |
|
SetPos(0); |
1438 |
|
uint32_t crc = 0; |
1439 |
|
__resetCRC(crc); |
1440 |
|
while (true) { |
1441 |
|
file_offset_t nRead = Read(&buffer[0], n); |
1442 |
|
if (nRead <= 0) break; |
1443 |
|
__calculateCRC(&buffer[0], nRead * FrameSize, crc); |
1444 |
|
} |
1445 |
|
__finalizeCRC(crc); |
1446 |
|
return crc; |
1447 |
|
} |
1448 |
|
|
1449 |
Sample::~Sample() { |
Sample::~Sample() { |
1450 |
Instances--; |
Instances--; |
1451 |
if (!Instances && InternalDecompressionBuffer.Size) { |
if (!Instances && InternalDecompressionBuffer.Size) { |
1462 |
// *************** DimensionRegion *************** |
// *************** DimensionRegion *************** |
1463 |
// * |
// * |
1464 |
|
|
1465 |
uint DimensionRegion::Instances = 0; |
size_t DimensionRegion::Instances = 0; |
1466 |
DimensionRegion::VelocityTableMap* DimensionRegion::pVelocityTables = NULL; |
DimensionRegion::VelocityTableMap* DimensionRegion::pVelocityTables = NULL; |
1467 |
|
|
1468 |
DimensionRegion::DimensionRegion(Region* pParent, RIFF::List* _3ewl) : DLS::Sampler(_3ewl) { |
DimensionRegion::DimensionRegion(Region* pParent, RIFF::List* _3ewl) : DLS::Sampler(_3ewl) { |
1656 |
EG2Attack = 0.0; |
EG2Attack = 0.0; |
1657 |
EG2Decay1 = 0.005; |
EG2Decay1 = 0.005; |
1658 |
EG2Sustain = 1000; |
EG2Sustain = 1000; |
1659 |
EG2Release = 0.3; |
EG2Release = 60; |
1660 |
LFO2ControlDepth = 0; |
LFO2ControlDepth = 0; |
1661 |
LFO2Frequency = 1.0; |
LFO2Frequency = 1.0; |
1662 |
LFO2InternalDepth = 0; |
LFO2InternalDepth = 0; |
1815 |
} |
} |
1816 |
} |
} |
1817 |
|
|
1818 |
|
void DimensionRegion::serialize(Serialization::Archive* archive) { |
1819 |
|
SRLZ(VelocityUpperLimit); |
1820 |
|
SRLZ(EG1PreAttack); |
1821 |
|
SRLZ(EG1Attack); |
1822 |
|
SRLZ(EG1Decay1); |
1823 |
|
SRLZ(EG1Decay2); |
1824 |
|
SRLZ(EG1InfiniteSustain); |
1825 |
|
SRLZ(EG1Sustain); |
1826 |
|
SRLZ(EG1Release); |
1827 |
|
SRLZ(EG1Hold); |
1828 |
|
SRLZ(EG1Controller); |
1829 |
|
SRLZ(EG1ControllerInvert); |
1830 |
|
SRLZ(EG1ControllerAttackInfluence); |
1831 |
|
SRLZ(EG1ControllerDecayInfluence); |
1832 |
|
SRLZ(EG1ControllerReleaseInfluence); |
1833 |
|
SRLZ(LFO1Frequency); |
1834 |
|
SRLZ(LFO1InternalDepth); |
1835 |
|
SRLZ(LFO1ControlDepth); |
1836 |
|
SRLZ(LFO1Controller); |
1837 |
|
SRLZ(LFO1FlipPhase); |
1838 |
|
SRLZ(LFO1Sync); |
1839 |
|
SRLZ(EG2PreAttack); |
1840 |
|
SRLZ(EG2Attack); |
1841 |
|
SRLZ(EG2Decay1); |
1842 |
|
SRLZ(EG2Decay2); |
1843 |
|
SRLZ(EG2InfiniteSustain); |
1844 |
|
SRLZ(EG2Sustain); |
1845 |
|
SRLZ(EG2Release); |
1846 |
|
SRLZ(EG2Controller); |
1847 |
|
SRLZ(EG2ControllerInvert); |
1848 |
|
SRLZ(EG2ControllerAttackInfluence); |
1849 |
|
SRLZ(EG2ControllerDecayInfluence); |
1850 |
|
SRLZ(EG2ControllerReleaseInfluence); |
1851 |
|
SRLZ(LFO2Frequency); |
1852 |
|
SRLZ(LFO2InternalDepth); |
1853 |
|
SRLZ(LFO2ControlDepth); |
1854 |
|
SRLZ(LFO2Controller); |
1855 |
|
SRLZ(LFO2FlipPhase); |
1856 |
|
SRLZ(LFO2Sync); |
1857 |
|
SRLZ(EG3Attack); |
1858 |
|
SRLZ(EG3Depth); |
1859 |
|
SRLZ(LFO3Frequency); |
1860 |
|
SRLZ(LFO3InternalDepth); |
1861 |
|
SRLZ(LFO3ControlDepth); |
1862 |
|
SRLZ(LFO3Controller); |
1863 |
|
SRLZ(LFO3Sync); |
1864 |
|
SRLZ(VCFEnabled); |
1865 |
|
SRLZ(VCFType); |
1866 |
|
SRLZ(VCFCutoffController); |
1867 |
|
SRLZ(VCFCutoffControllerInvert); |
1868 |
|
SRLZ(VCFCutoff); |
1869 |
|
SRLZ(VCFVelocityCurve); |
1870 |
|
SRLZ(VCFVelocityScale); |
1871 |
|
SRLZ(VCFVelocityDynamicRange); |
1872 |
|
SRLZ(VCFResonance); |
1873 |
|
SRLZ(VCFResonanceDynamic); |
1874 |
|
SRLZ(VCFResonanceController); |
1875 |
|
SRLZ(VCFKeyboardTracking); |
1876 |
|
SRLZ(VCFKeyboardTrackingBreakpoint); |
1877 |
|
SRLZ(VelocityResponseCurve); |
1878 |
|
SRLZ(VelocityResponseDepth); |
1879 |
|
SRLZ(VelocityResponseCurveScaling); |
1880 |
|
SRLZ(ReleaseVelocityResponseCurve); |
1881 |
|
SRLZ(ReleaseVelocityResponseDepth); |
1882 |
|
SRLZ(ReleaseTriggerDecay); |
1883 |
|
SRLZ(Crossfade); |
1884 |
|
SRLZ(PitchTrack); |
1885 |
|
SRLZ(DimensionBypass); |
1886 |
|
SRLZ(Pan); |
1887 |
|
SRLZ(SelfMask); |
1888 |
|
SRLZ(AttenuationController); |
1889 |
|
SRLZ(InvertAttenuationController); |
1890 |
|
SRLZ(AttenuationControllerThreshold); |
1891 |
|
SRLZ(ChannelOffset); |
1892 |
|
SRLZ(SustainDefeat); |
1893 |
|
SRLZ(MSDecode); |
1894 |
|
//SRLZ(SampleStartOffset); |
1895 |
|
SRLZ(SampleAttenuation); |
1896 |
|
|
1897 |
|
// derived attributes from DLS::Sampler |
1898 |
|
SRLZ(FineTune); |
1899 |
|
SRLZ(Gain); |
1900 |
|
} |
1901 |
|
|
1902 |
/** |
/** |
1903 |
* Updates the respective member variable and updates @c SampleAttenuation |
* Updates the respective member variable and updates @c SampleAttenuation |
1904 |
* which depends on this value. |
* which depends on this value. |
1939 |
|
|
1940 |
// update '3ewa' chunk with DimensionRegion's current settings |
// update '3ewa' chunk with DimensionRegion's current settings |
1941 |
|
|
1942 |
const uint32_t chunksize = _3ewa->GetNewSize(); |
const uint32_t chunksize = (uint32_t) _3ewa->GetNewSize(); |
1943 |
store32(&pData[0], chunksize); // unknown, always chunk size? |
store32(&pData[0], chunksize); // unknown, always chunk size? |
1944 |
|
|
1945 |
const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); |
const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); |
3295 |
int step = 1; |
int step = 1; |
3296 |
for (int i = 0 ; i < veldim ; i++) step <<= pDimensionDefinitions[i].bits; |
for (int i = 0 ; i < veldim ; i++) step <<= pDimensionDefinitions[i].bits; |
3297 |
int skipveldim = (step << pDimensionDefinitions[veldim].bits) - step; |
int skipveldim = (step << pDimensionDefinitions[veldim].bits) - step; |
|
int end = step * pDimensionDefinitions[veldim].zones; |
|
3298 |
|
|
3299 |
// loop through all dimension regions for all dimensions except the velocity dimension |
// loop through all dimension regions for all dimensions except the velocity dimension |
3300 |
int dim[8] = { 0 }; |
int dim[8] = { 0 }; |
3301 |
for (int i = 0 ; i < DimensionRegions ; i++) { |
for (int i = 0 ; i < DimensionRegions ; i++) { |
3302 |
|
const int end = i + step * pDimensionDefinitions[veldim].zones; |
3303 |
|
|
3304 |
|
// create a velocity table for all cases where the velocity zone is zero |
3305 |
if (pDimensionRegions[i]->DimensionUpperLimits[veldim] || |
if (pDimensionRegions[i]->DimensionUpperLimits[veldim] || |
3306 |
pDimensionRegions[i]->VelocityUpperLimit) { |
pDimensionRegions[i]->VelocityUpperLimit) { |
3307 |
// create the velocity table |
// create the velocity table |
3332 |
} |
} |
3333 |
} |
} |
3334 |
|
|
3335 |
|
// jump to the next case where the velocity zone is zero |
3336 |
int j; |
int j; |
3337 |
int shift = 0; |
int shift = 0; |
3338 |
for (j = 0 ; j < Dimensions ; j++) { |
for (j = 0 ; j < Dimensions ; j++) { |
3907 |
DimensionRegion* Region::GetDimensionRegionByValue(const uint DimValues[8]) { |
DimensionRegion* Region::GetDimensionRegionByValue(const uint DimValues[8]) { |
3908 |
uint8_t bits; |
uint8_t bits; |
3909 |
int veldim = -1; |
int veldim = -1; |
3910 |
int velbitpos; |
int velbitpos = 0; |
3911 |
int bitpos = 0; |
int bitpos = 0; |
3912 |
int dimregidx = 0; |
int dimregidx = 0; |
3913 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
3956 |
int Region::GetDimensionRegionIndexByValue(const uint DimValues[8]) { |
int Region::GetDimensionRegionIndexByValue(const uint DimValues[8]) { |
3957 |
uint8_t bits; |
uint8_t bits; |
3958 |
int veldim = -1; |
int veldim = -1; |
3959 |
int velbitpos; |
int velbitpos = 0; |
3960 |
int bitpos = 0; |
int bitpos = 0; |
3961 |
int dimregidx = 0; |
int dimregidx = 0; |
3962 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
4041 |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
4042 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
4043 |
if (!file->pWavePoolTable) return NULL; |
if (!file->pWavePoolTable) return NULL; |
4044 |
unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
// for new files or files >= 2 GB use 64 bit wave pool offsets |
4045 |
unsigned long soughtfileno = file->pWavePoolTableHi[WavePoolTableIndex]; |
if (file->pRIFF->IsNew() || (file->pRIFF->GetCurrentFileSize() >> 31)) { |
4046 |
Sample* sample = file->GetFirstSample(pProgress); |
// use 64 bit wave pool offsets (treating this as large file) |
4047 |
while (sample) { |
uint64_t soughtoffset = |
4048 |
if (sample->ulWavePoolOffset == soughtoffset && |
uint64_t(file->pWavePoolTable[WavePoolTableIndex]) | |
4049 |
sample->FileNo == soughtfileno) return static_cast<gig::Sample*>(sample); |
uint64_t(file->pWavePoolTableHi[WavePoolTableIndex]) << 32; |
4050 |
sample = file->GetNextSample(); |
Sample* sample = file->GetFirstSample(pProgress); |
4051 |
|
while (sample) { |
4052 |
|
if (sample->ullWavePoolOffset == soughtoffset) |
4053 |
|
return static_cast<gig::Sample*>(sample); |
4054 |
|
sample = file->GetNextSample(); |
4055 |
|
} |
4056 |
|
} else { |
4057 |
|
// use extension files and 32 bit wave pool offsets |
4058 |
|
file_offset_t soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
4059 |
|
file_offset_t soughtfileno = file->pWavePoolTableHi[WavePoolTableIndex]; |
4060 |
|
Sample* sample = file->GetFirstSample(pProgress); |
4061 |
|
while (sample) { |
4062 |
|
if (sample->ullWavePoolOffset == soughtoffset && |
4063 |
|
sample->FileNo == soughtfileno) return static_cast<gig::Sample*>(sample); |
4064 |
|
sample = file->GetNextSample(); |
4065 |
|
} |
4066 |
} |
} |
4067 |
return NULL; |
return NULL; |
4068 |
} |
} |
4305 |
// to handle potential future extensions of the header |
// to handle potential future extensions of the header |
4306 |
ckScri->SetPos(sizeof(int32_t) + headerSize); |
ckScri->SetPos(sizeof(int32_t) + headerSize); |
4307 |
// read actual script data |
// read actual script data |
4308 |
uint32_t scriptSize = ckScri->GetSize() - ckScri->GetPos(); |
uint32_t scriptSize = uint32_t(ckScri->GetSize() - ckScri->GetPos()); |
4309 |
data.resize(scriptSize); |
data.resize(scriptSize); |
4310 |
for (int i = 0; i < scriptSize; ++i) |
for (int i = 0; i < scriptSize; ++i) |
4311 |
data[i] = ckScri->ReadUint8(); |
data[i] = ckScri->ReadUint8(); |
4356 |
// recalculate CRC32 check sum |
// recalculate CRC32 check sum |
4357 |
__resetCRC(crc); |
__resetCRC(crc); |
4358 |
__calculateCRC(&data[0], data.size(), crc); |
__calculateCRC(&data[0], data.size(), crc); |
4359 |
__encodeCRC(crc); |
__finalizeCRC(crc); |
4360 |
// make sure chunk exists and has the required size |
// make sure chunk exists and has the required size |
4361 |
const int chunkSize = 7*sizeof(int32_t) + Name.size() + data.size(); |
const file_offset_t chunkSize = (file_offset_t) 7*sizeof(int32_t) + Name.size() + data.size(); |
4362 |
if (!pChunk) pChunk = pGroup->pList->AddSubChunk(CHUNK_ID_SCRI, chunkSize); |
if (!pChunk) pChunk = pGroup->pList->AddSubChunk(CHUNK_ID_SCRI, chunkSize); |
4363 |
else pChunk->Resize(chunkSize); |
else pChunk->Resize(chunkSize); |
4364 |
// fill the chunk data to be written to disk |
// fill the chunk data to be written to disk |
4365 |
uint8_t* pData = (uint8_t*) pChunk->LoadChunkData(); |
uint8_t* pData = (uint8_t*) pChunk->LoadChunkData(); |
4366 |
int pos = 0; |
int pos = 0; |
4367 |
store32(&pData[pos], 6*sizeof(int32_t) + Name.size()); // total header size |
store32(&pData[pos], uint32_t(6*sizeof(int32_t) + Name.size())); // total header size |
4368 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4369 |
store32(&pData[pos], Compression); |
store32(&pData[pos], Compression); |
4370 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4376 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4377 |
store32(&pData[pos], crc); |
store32(&pData[pos], crc); |
4378 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4379 |
store32(&pData[pos], Name.size()); |
store32(&pData[pos], (uint32_t) Name.size()); |
4380 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4381 |
for (int i = 0; i < Name.size(); ++i, ++pos) |
for (int i = 0; i < Name.size(); ++i, ++pos) |
4382 |
pData[pos] = Name[i]; |
pData[pos] = Name[i]; |
4391 |
* @param pGroup - script's new group |
* @param pGroup - script's new group |
4392 |
*/ |
*/ |
4393 |
void Script::SetGroup(ScriptGroup* pGroup) { |
void Script::SetGroup(ScriptGroup* pGroup) { |
4394 |
if (this->pGroup = pGroup) return; |
if (this->pGroup == pGroup) return; |
4395 |
if (pChunk) |
if (pChunk) |
4396 |
pChunk->GetParent()->MoveSubChunk(pChunk, pGroup->pList); |
pChunk->GetParent()->MoveSubChunk(pChunk, pGroup->pList); |
4397 |
this->pGroup = pGroup; |
this->pGroup = pGroup; |
4407 |
return pGroup; |
return pGroup; |
4408 |
} |
} |
4409 |
|
|
4410 |
|
/** |
4411 |
|
* Make a (semi) deep copy of the Script object given by @a orig |
4412 |
|
* and assign it to this object. Note: the ScriptGroup this Script |
4413 |
|
* object belongs to remains untouched by this call. |
4414 |
|
* |
4415 |
|
* @param orig - original Script object to be copied from |
4416 |
|
*/ |
4417 |
|
void Script::CopyAssign(const Script* orig) { |
4418 |
|
Name = orig->Name; |
4419 |
|
Compression = orig->Compression; |
4420 |
|
Encoding = orig->Encoding; |
4421 |
|
Language = orig->Language; |
4422 |
|
Bypass = orig->Bypass; |
4423 |
|
data = orig->data; |
4424 |
|
} |
4425 |
|
|
4426 |
void Script::RemoveAllScriptReferences() { |
void Script::RemoveAllScriptReferences() { |
4427 |
File* pFile = pGroup->pFile; |
File* pFile = pGroup->pFile; |
4428 |
for (int i = 0; pFile->GetInstrument(i); ++i) { |
for (int i = 0; pFile->GetInstrument(i); ++i) { |
4569 |
EffectSend = 0; |
EffectSend = 0; |
4570 |
Attenuation = 0; |
Attenuation = 0; |
4571 |
FineTune = 0; |
FineTune = 0; |
4572 |
PitchbendRange = 0; |
PitchbendRange = 2; |
4573 |
PianoReleaseMode = false; |
PianoReleaseMode = false; |
4574 |
DimensionKeyRange.low = 0; |
DimensionKeyRange.low = 0; |
4575 |
DimensionKeyRange.high = 0; |
DimensionKeyRange.high = 0; |
4744 |
|
|
4745 |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
4746 |
if (!lst3LS) lst3LS = pCkInstrument->AddSubList(LIST_TYPE_3LS); |
if (!lst3LS) lst3LS = pCkInstrument->AddSubList(LIST_TYPE_3LS); |
4747 |
const int slotCount = pScriptRefs->size(); |
const int slotCount = (int) pScriptRefs->size(); |
4748 |
const int headerSize = 3 * sizeof(uint32_t); |
const int headerSize = 3 * sizeof(uint32_t); |
4749 |
const int slotSize = 2 * sizeof(uint32_t); |
const int slotSize = 2 * sizeof(uint32_t); |
4750 |
const int totalChunkSize = headerSize + slotCount * slotSize; |
const int totalChunkSize = headerSize + slotCount * slotSize; |
4780 |
if (pScriptRefs && pScriptRefs->size() > 0) { |
if (pScriptRefs && pScriptRefs->size() > 0) { |
4781 |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
4782 |
RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL); |
RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL); |
4783 |
const int slotCount = pScriptRefs->size(); |
const int slotCount = (int) pScriptRefs->size(); |
4784 |
const int headerSize = 3 * sizeof(uint32_t); |
const int headerSize = 3 * sizeof(uint32_t); |
4785 |
ckSCSL->SetPos(headerSize); |
ckSCSL->SetPos(headerSize); |
4786 |
for (int i = 0; i < slotCount; ++i) { |
for (int i = 0; i < slotCount; ++i) { |
4787 |
uint32_t fileOffset = |
uint32_t fileOffset = uint32_t( |
4788 |
(*pScriptRefs)[i].script->pChunk->GetFilePos() - |
(*pScriptRefs)[i].script->pChunk->GetFilePos() - |
4789 |
(*pScriptRefs)[i].script->pChunk->GetPos() - |
(*pScriptRefs)[i].script->pChunk->GetPos() - |
4790 |
CHUNK_HEADER_SIZE; |
CHUNK_HEADER_SIZE(ckSCSL->GetFile()->GetFileOffsetSize()) |
4791 |
|
); |
4792 |
ckSCSL->WriteUint32(&fileOffset); |
ckSCSL->WriteUint32(&fileOffset); |
4793 |
// jump over flags entry (containing the bypass flag) |
// jump over flags entry (containing the bypass flag) |
4794 |
ckSCSL->SetPos(sizeof(uint32_t), RIFF::stream_curpos); |
ckSCSL->SetPos(sizeof(uint32_t), RIFF::stream_curpos); |
4848 |
RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN); |
RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN); |
4849 |
Region* pNewRegion = new Region(this, rgn); |
Region* pNewRegion = new Region(this, rgn); |
4850 |
pRegions->push_back(pNewRegion); |
pRegions->push_back(pNewRegion); |
4851 |
Regions = pRegions->size(); |
Regions = (uint32_t) pRegions->size(); |
4852 |
// update Region key table for fast lookup |
// update Region key table for fast lookup |
4853 |
UpdateRegionKeyTable(); |
UpdateRegionKeyTable(); |
4854 |
// done |
// done |
4900 |
|
|
4901 |
// move this instrument within the instrument list |
// move this instrument within the instrument list |
4902 |
{ |
{ |
4903 |
DLS::File::InstrumentList& list = *pFile->pInstruments; |
File::InstrumentList& list = *pFile->pInstruments; |
4904 |
|
|
4905 |
DLS::File::InstrumentList::iterator itFrom = |
File::InstrumentList::iterator itFrom = |
4906 |
std::find(list.begin(), list.end(), static_cast<DLS::Instrument*>(this)); |
std::find(list.begin(), list.end(), static_cast<DLS::Instrument*>(this)); |
4907 |
|
|
4908 |
DLS::File::InstrumentList::iterator itTo = |
File::InstrumentList::iterator itTo = |
4909 |
std::find(list.begin(), list.end(), static_cast<DLS::Instrument*>(dst)); |
std::find(list.begin(), list.end(), static_cast<DLS::Instrument*>(dst)); |
4910 |
|
|
4911 |
list.splice(itTo, list, itFrom); |
list.splice(itTo, list, itFrom); |
4994 |
for (uint s = 0; group->GetScript(s); ++s) { |
for (uint s = 0; group->GetScript(s); ++s) { |
4995 |
Script* script = group->GetScript(s); |
Script* script = group->GetScript(s); |
4996 |
if (script->pChunk) { |
if (script->pChunk) { |
4997 |
uint32_t offset = script->pChunk->GetFilePos() - |
uint32_t offset = uint32_t( |
4998 |
script->pChunk->GetPos() - |
script->pChunk->GetFilePos() - |
4999 |
CHUNK_HEADER_SIZE; |
script->pChunk->GetPos() - |
5000 |
|
CHUNK_HEADER_SIZE(script->pChunk->GetFile()->GetFileOffsetSize()) |
5001 |
|
); |
5002 |
if (offset == soughtOffset) |
if (offset == soughtOffset) |
5003 |
{ |
{ |
5004 |
_ScriptPooolRef ref; |
_ScriptPooolRef ref; |
5123 |
*/ |
*/ |
5124 |
void Instrument::RemoveScript(Script* pScript) { |
void Instrument::RemoveScript(Script* pScript) { |
5125 |
LoadScripts(); |
LoadScripts(); |
5126 |
for (int i = pScriptRefs->size() - 1; i >= 0; --i) { |
for (ssize_t i = pScriptRefs->size() - 1; i >= 0; --i) { |
5127 |
if ((*pScriptRefs)[i].script == pScript) { |
if ((*pScriptRefs)[i].script == pScript) { |
5128 |
pScriptRefs->erase( pScriptRefs->begin() + i ); |
pScriptRefs->erase( pScriptRefs->begin() + i ); |
5129 |
} |
} |
5145 |
* gigedit. |
* gigedit. |
5146 |
*/ |
*/ |
5147 |
uint Instrument::ScriptSlotCount() const { |
uint Instrument::ScriptSlotCount() const { |
5148 |
return pScriptRefs ? pScriptRefs->size() : scriptPoolFileOffsets.size(); |
return uint(pScriptRefs ? pScriptRefs->size() : scriptPoolFileOffsets.size()); |
5149 |
} |
} |
5150 |
|
|
5151 |
/** @brief Whether script execution shall be skipped. |
/** @brief Whether script execution shall be skipped. |
5561 |
int iTotalSamples = WavePoolCount; |
int iTotalSamples = WavePoolCount; |
5562 |
|
|
5563 |
// check if samples should be loaded from extension files |
// check if samples should be loaded from extension files |
5564 |
|
// (only for old gig files < 2 GB) |
5565 |
int lastFileNo = 0; |
int lastFileNo = 0; |
5566 |
for (int i = 0 ; i < WavePoolCount ; i++) { |
if (!file->IsNew() && !(file->GetCurrentFileSize() >> 31)) { |
5567 |
if (pWavePoolTableHi[i] > lastFileNo) lastFileNo = pWavePoolTableHi[i]; |
for (int i = 0 ; i < WavePoolCount ; i++) { |
5568 |
|
if (pWavePoolTableHi[i] > lastFileNo) lastFileNo = pWavePoolTableHi[i]; |
5569 |
|
} |
5570 |
} |
} |
5571 |
String name(pRIFF->GetFileName()); |
String name(pRIFF->GetFileName()); |
5572 |
int nameLen = name.length(); |
int nameLen = (int) name.length(); |
5573 |
char suffix[6]; |
char suffix[6]; |
5574 |
if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4; |
if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4; |
5575 |
|
|
5576 |
for (int fileNo = 0 ; ; ) { |
for (int fileNo = 0 ; ; ) { |
5577 |
RIFF::List* wvpl = file->GetSubList(LIST_TYPE_WVPL); |
RIFF::List* wvpl = file->GetSubList(LIST_TYPE_WVPL); |
5578 |
if (wvpl) { |
if (wvpl) { |
5579 |
unsigned long wvplFileOffset = wvpl->GetFilePos(); |
file_offset_t wvplFileOffset = wvpl->GetFilePos(); |
5580 |
RIFF::List* wave = wvpl->GetFirstSubList(); |
RIFF::List* wave = wvpl->GetFirstSubList(); |
5581 |
while (wave) { |
while (wave) { |
5582 |
if (wave->GetListType() == LIST_TYPE_WAVE) { |
if (wave->GetListType() == LIST_TYPE_WAVE) { |
5584 |
const float subprogress = (float) iSampleIndex / (float) iTotalSamples; |
const float subprogress = (float) iSampleIndex / (float) iTotalSamples; |
5585 |
__notify_progress(pProgress, subprogress); |
__notify_progress(pProgress, subprogress); |
5586 |
|
|
5587 |
unsigned long waveFileOffset = wave->GetFilePos(); |
file_offset_t waveFileOffset = wave->GetFilePos(); |
5588 |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo)); |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo, iSampleIndex)); |
5589 |
|
|
5590 |
iSampleIndex++; |
iSampleIndex++; |
5591 |
} |
} |
5738 |
mGroups[pFile->GetSample(i)->GetGroup()]->AddSample(s); |
mGroups[pFile->GetSample(i)->GetGroup()]->AddSample(s); |
5739 |
mSamples[pFile->GetSample(i)] = s; |
mSamples[pFile->GetSample(i)] = s; |
5740 |
} |
} |
5741 |
|
|
5742 |
|
// clone script groups and their scripts |
5743 |
|
for (int iGroup = 0; pFile->GetScriptGroup(iGroup); ++iGroup) { |
5744 |
|
ScriptGroup* sg = pFile->GetScriptGroup(iGroup); |
5745 |
|
ScriptGroup* dg = AddScriptGroup(); |
5746 |
|
dg->Name = "COPY" + ToString(iCallCount) + "_" + sg->Name; |
5747 |
|
for (int iScript = 0; sg->GetScript(iScript); ++iScript) { |
5748 |
|
Script* ss = sg->GetScript(iScript); |
5749 |
|
Script* ds = dg->AddScript(); |
5750 |
|
ds->CopyAssign(ss); |
5751 |
|
} |
5752 |
|
} |
5753 |
|
|
5754 |
//BUG: For some reason this method only works with this additional |
//BUG: For some reason this method only works with this additional |
5755 |
// Save() call in between here. |
// Save() call in between here. |
5756 |
// |
// |
5835 |
if (!_3crc) return; |
if (!_3crc) return; |
5836 |
|
|
5837 |
// get the index of the sample |
// get the index of the sample |
5838 |
int iWaveIndex = -1; |
int iWaveIndex = GetWaveTableIndexOf(pSample); |
|
File::SampleList::iterator iter = pSamples->begin(); |
|
|
File::SampleList::iterator end = pSamples->end(); |
|
|
for (int index = 0; iter != end; ++iter, ++index) { |
|
|
if (*iter == pSample) { |
|
|
iWaveIndex = index; |
|
|
break; |
|
|
} |
|
|
} |
|
5839 |
if (iWaveIndex < 0) throw gig::Exception("Could not update crc, could not find sample"); |
if (iWaveIndex < 0) throw gig::Exception("Could not update crc, could not find sample"); |
5840 |
|
|
5841 |
// write the CRC-32 checksum to disk |
// write the CRC-32 checksum to disk |
5842 |
_3crc->SetPos(iWaveIndex * 8); |
_3crc->SetPos(iWaveIndex * 8); |
5843 |
uint32_t tmp = 1; |
uint32_t one = 1; |
5844 |
_3crc->WriteUint32(&tmp); // unknown, always 1? |
_3crc->WriteUint32(&one); // always 1 |
5845 |
_3crc->WriteUint32(&crc); |
_3crc->WriteUint32(&crc); |
5846 |
} |
} |
5847 |
|
|
5848 |
|
uint32_t File::GetSampleChecksum(Sample* pSample) { |
5849 |
|
// get the index of the sample |
5850 |
|
int iWaveIndex = GetWaveTableIndexOf(pSample); |
5851 |
|
if (iWaveIndex < 0) throw gig::Exception("Could not retrieve reference crc of sample, could not resolve sample's wave table index"); |
5852 |
|
|
5853 |
|
return GetSampleChecksumByIndex(iWaveIndex); |
5854 |
|
} |
5855 |
|
|
5856 |
|
uint32_t File::GetSampleChecksumByIndex(int index) { |
5857 |
|
if (index < 0) throw gig::Exception("Could not retrieve reference crc of sample, invalid wave pool index of sample"); |
5858 |
|
|
5859 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5860 |
|
if (!_3crc) throw gig::Exception("Could not retrieve reference crc of sample, no checksums stored for this file yet"); |
5861 |
|
uint8_t* pData = (uint8_t*) _3crc->LoadChunkData(); |
5862 |
|
if (!pData) throw gig::Exception("Could not retrieve reference crc of sample, no checksums stored for this file yet"); |
5863 |
|
|
5864 |
|
// read the CRC-32 checksum directly from disk |
5865 |
|
size_t pos = index * 8; |
5866 |
|
if (pos + 8 > _3crc->GetNewSize()) |
5867 |
|
throw gig::Exception("Could not retrieve reference crc of sample, could not seek to required position in crc chunk"); |
5868 |
|
|
5869 |
|
uint32_t one = load32(&pData[pos]); // always 1 |
5870 |
|
if (one != 1) |
5871 |
|
throw gig::Exception("Could not retrieve reference crc of sample, because reference checksum table is damaged"); |
5872 |
|
|
5873 |
|
return load32(&pData[pos+4]); |
5874 |
|
} |
5875 |
|
|
5876 |
|
int File::GetWaveTableIndexOf(gig::Sample* pSample) { |
5877 |
|
if (!pSamples) GetFirstSample(); // make sure sample chunks were scanned |
5878 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5879 |
|
File::SampleList::iterator end = pSamples->end(); |
5880 |
|
for (int index = 0; iter != end; ++iter, ++index) |
5881 |
|
if (*iter == pSample) |
5882 |
|
return index; |
5883 |
|
return -1; |
5884 |
|
} |
5885 |
|
|
5886 |
|
/** |
5887 |
|
* Checks whether the file's "3CRC" chunk was damaged. This chunk contains |
5888 |
|
* the CRC32 check sums of all samples' raw wave data. |
5889 |
|
* |
5890 |
|
* @return true if 3CRC chunk is OK, or false if 3CRC chunk is damaged |
5891 |
|
*/ |
5892 |
|
bool File::VerifySampleChecksumTable() { |
5893 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5894 |
|
if (!_3crc) return false; |
5895 |
|
if (_3crc->GetNewSize() <= 0) return false; |
5896 |
|
if (_3crc->GetNewSize() % 8) return false; |
5897 |
|
if (!pSamples) GetFirstSample(); // make sure sample chunks were scanned |
5898 |
|
if (_3crc->GetNewSize() != pSamples->size() * 8) return false; |
5899 |
|
|
5900 |
|
const file_offset_t n = _3crc->GetNewSize() / 8; |
5901 |
|
|
5902 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
5903 |
|
if (!pData) return false; |
5904 |
|
|
5905 |
|
for (file_offset_t i = 0; i < n; ++i) { |
5906 |
|
uint32_t one = pData[i*2]; |
5907 |
|
if (one != 1) return false; |
5908 |
|
} |
5909 |
|
|
5910 |
|
return true; |
5911 |
|
} |
5912 |
|
|
5913 |
|
/** |
5914 |
|
* Recalculates CRC32 checksums for all samples and rebuilds this gig |
5915 |
|
* file's checksum table with those new checksums. This might usually |
5916 |
|
* just be necessary if the checksum table was damaged. |
5917 |
|
* |
5918 |
|
* @e IMPORTANT: The current implementation of this method only works |
5919 |
|
* with files that have not been modified since it was loaded, because |
5920 |
|
* it expects that no externally caused file structure changes are |
5921 |
|
* required! |
5922 |
|
* |
5923 |
|
* Due to the expectation above, this method is currently protected |
5924 |
|
* and actually only used by the command line tool "gigdump" yet. |
5925 |
|
* |
5926 |
|
* @returns true if Save() is required to be called after this call, |
5927 |
|
* false if no further action is required |
5928 |
|
*/ |
5929 |
|
bool File::RebuildSampleChecksumTable() { |
5930 |
|
// make sure sample chunks were scanned |
5931 |
|
if (!pSamples) GetFirstSample(); |
5932 |
|
|
5933 |
|
bool bRequiresSave = false; |
5934 |
|
|
5935 |
|
// make sure "3CRC" chunk exists with required size |
5936 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5937 |
|
if (!_3crc) { |
5938 |
|
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
5939 |
|
// the order of einf and 3crc is not the same in v2 and v3 |
5940 |
|
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
5941 |
|
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
5942 |
|
bRequiresSave = true; |
5943 |
|
} else if (_3crc->GetNewSize() != pSamples->size() * 8) { |
5944 |
|
_3crc->Resize(pSamples->size() * 8); |
5945 |
|
bRequiresSave = true; |
5946 |
|
} |
5947 |
|
|
5948 |
|
if (bRequiresSave) { // refill CRC table for all samples in RAM ... |
5949 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
5950 |
|
{ |
5951 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5952 |
|
File::SampleList::iterator end = pSamples->end(); |
5953 |
|
for (; iter != end; ++iter) { |
5954 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
5955 |
|
int index = GetWaveTableIndexOf(pSample); |
5956 |
|
if (index < 0) throw gig::Exception("Could not rebuild crc table for samples, wave table index of a sample could not be resolved"); |
5957 |
|
pData[index*2] = 1; // always 1 |
5958 |
|
pData[index*2+1] = pSample->CalculateWaveDataChecksum(); |
5959 |
|
} |
5960 |
|
} |
5961 |
|
} else { // no file structure changes necessary, so directly write to disk and we are done ... |
5962 |
|
// make sure file is in write mode |
5963 |
|
pRIFF->SetMode(RIFF::stream_mode_read_write); |
5964 |
|
{ |
5965 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5966 |
|
File::SampleList::iterator end = pSamples->end(); |
5967 |
|
for (; iter != end; ++iter) { |
5968 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
5969 |
|
int index = GetWaveTableIndexOf(pSample); |
5970 |
|
if (index < 0) throw gig::Exception("Could not rebuild crc table for samples, wave table index of a sample could not be resolved"); |
5971 |
|
pSample->crc = pSample->CalculateWaveDataChecksum(); |
5972 |
|
SetSampleChecksum(pSample, pSample->crc); |
5973 |
|
} |
5974 |
|
} |
5975 |
|
} |
5976 |
|
|
5977 |
|
return bRequiresSave; |
5978 |
|
} |
5979 |
|
|
5980 |
Group* File::GetFirstGroup() { |
Group* File::GetFirstGroup() { |
5981 |
if (!pGroups) LoadGroups(); |
if (!pGroups) LoadGroups(); |
5982 |
// there must always be at least one group |
// there must always be at least one group |
6205 |
void File::UpdateChunks(progress_t* pProgress) { |
void File::UpdateChunks(progress_t* pProgress) { |
6206 |
bool newFile = pRIFF->GetSubList(LIST_TYPE_INFO) == NULL; |
bool newFile = pRIFF->GetSubList(LIST_TYPE_INFO) == NULL; |
6207 |
|
|
|
b64BitWavePoolOffsets = pVersion && pVersion->major == 3; |
|
|
|
|
6208 |
// update own gig format extension chunks |
// update own gig format extension chunks |
6209 |
// (not part of the GigaStudio 4 format) |
// (not part of the GigaStudio 4 format) |
6210 |
// |
RIFF::List* lst3LS = pRIFF->GetSubList(LIST_TYPE_3LS); |
6211 |
|
if (!lst3LS) { |
6212 |
|
lst3LS = pRIFF->AddSubList(LIST_TYPE_3LS); |
6213 |
|
} |
6214 |
|
// Make sure <3LS > chunk is placed before <ptbl> chunk. The precise |
6215 |
|
// location of <3LS > is irrelevant, however it should be located |
6216 |
|
// before the actual wave data |
6217 |
|
RIFF::Chunk* ckPTBL = pRIFF->GetSubChunk(CHUNK_ID_PTBL); |
6218 |
|
pRIFF->MoveSubChunk(lst3LS, ckPTBL); |
6219 |
|
|
6220 |
// This must be performed before writing the chunks for instruments, |
// This must be performed before writing the chunks for instruments, |
6221 |
// because the instruments' script slots will write the file offsets |
// because the instruments' script slots will write the file offsets |
6222 |
// of the respective instrument script chunk as reference. |
// of the respective instrument script chunk as reference. |
6223 |
if (pScriptGroups) { |
if (pScriptGroups) { |
6224 |
RIFF::List* lst3LS = pRIFF->GetSubList(LIST_TYPE_3LS); |
// Update instrument script (group) chunks. |
6225 |
if (pScriptGroups->empty()) { |
for (std::list<ScriptGroup*>::iterator it = pScriptGroups->begin(); |
6226 |
if (lst3LS) pRIFF->DeleteSubChunk(lst3LS); |
it != pScriptGroups->end(); ++it) |
6227 |
} else { |
{ |
6228 |
if (!lst3LS) lst3LS = pRIFF->AddSubList(LIST_TYPE_3LS); |
(*it)->UpdateChunks(pProgress); |
|
|
|
|
// Update instrument script (group) chunks. |
|
|
|
|
|
for (std::list<ScriptGroup*>::iterator it = pScriptGroups->begin(); |
|
|
it != pScriptGroups->end(); ++it) |
|
|
{ |
|
|
(*it)->UpdateChunks(pProgress); |
|
|
} |
|
6229 |
} |
} |
6230 |
} |
} |
6231 |
|
|
6232 |
|
// in case no libgig custom format data was added, then remove the |
6233 |
|
// custom "3LS " chunk again |
6234 |
|
if (!lst3LS->CountSubChunks()) { |
6235 |
|
pRIFF->DeleteSubChunk(lst3LS); |
6236 |
|
lst3LS = NULL; |
6237 |
|
} |
6238 |
|
|
6239 |
// first update base class's chunks |
// first update base class's chunks |
6240 |
DLS::File::UpdateChunks(pProgress); |
DLS::File::UpdateChunks(pProgress); |
6241 |
|
|
6294 |
// Note that there are several fields with unknown use. These |
// Note that there are several fields with unknown use. These |
6295 |
// are set to zero. |
// are set to zero. |
6296 |
|
|
6297 |
int sublen = pSamples->size() / 8 + 49; |
int sublen = int(pSamples->size() / 8 + 49); |
6298 |
int einfSize = (Instruments + 1) * sublen; |
int einfSize = (Instruments + 1) * sublen; |
6299 |
|
|
6300 |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
6367 |
store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops); |
store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops); |
6368 |
// next 8 bytes unknown |
// next 8 bytes unknown |
6369 |
store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx); |
store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx); |
6370 |
store32(&pData[(instrumentIdx + 1) * sublen + 40], pSamples->size()); |
store32(&pData[(instrumentIdx + 1) * sublen + 40], (uint32_t) pSamples->size()); |
6371 |
// next 4 bytes unknown |
// next 4 bytes unknown |
6372 |
|
|
6373 |
totnbregions += instrument->Regions; |
totnbregions += instrument->Regions; |
6385 |
store32(&pData[24], totnbloops); |
store32(&pData[24], totnbloops); |
6386 |
// next 8 bytes unknown |
// next 8 bytes unknown |
6387 |
// next 4 bytes unknown, not always 0 |
// next 4 bytes unknown, not always 0 |
6388 |
store32(&pData[40], pSamples->size()); |
store32(&pData[40], (uint32_t) pSamples->size()); |
6389 |
// next 4 bytes unknown |
// next 4 bytes unknown |
6390 |
} |
} |
6391 |
|
|
6392 |
// update 3crc chunk |
// update 3crc chunk |
6393 |
|
|
6394 |
// The 3crc chunk contains CRC-32 checksums for the |
// The 3crc chunk contains CRC-32 checksums for the |
6395 |
// samples. The actual checksum values will be filled in |
// samples. When saving a gig file to disk, we first update the 3CRC |
6396 |
// later, by Sample::Write. |
// chunk here (in RAM) with the old crc values which we read from the |
6397 |
|
// 3CRC chunk when we opened the file (available with gig::Sample::crc |
6398 |
|
// member variable). This step is required, because samples might have |
6399 |
|
// been deleted by the user since the file was opened, which in turn |
6400 |
|
// changes the order of the (i.e. old) checksums within the 3crc chunk. |
6401 |
|
// If a sample was conciously modified by the user (that is if |
6402 |
|
// Sample::Write() was called later on) then Sample::Write() will just |
6403 |
|
// update the respective individual checksum(s) directly on disk and |
6404 |
|
// leaves all other sample checksums untouched. |
6405 |
|
|
6406 |
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
6407 |
if (_3crc) { |
if (_3crc) { |
6408 |
_3crc->Resize(pSamples->size() * 8); |
_3crc->Resize(pSamples->size() * 8); |
6409 |
} else if (newFile) { |
} else /*if (newFile)*/ { |
6410 |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
|
_3crc->LoadChunkData(); |
|
|
|
|
6411 |
// 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 |
6412 |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
6413 |
} |
} |
6414 |
|
{ // must be performed in RAM here ... |
6415 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
6416 |
|
if (pData) { |
6417 |
|
File::SampleList::iterator iter = pSamples->begin(); |
6418 |
|
File::SampleList::iterator end = pSamples->end(); |
6419 |
|
for (int index = 0; iter != end; ++iter, ++index) { |
6420 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
6421 |
|
pData[index*2] = 1; // always 1 |
6422 |
|
pData[index*2+1] = pSample->crc; |
6423 |
|
} |
6424 |
|
} |
6425 |
|
} |
6426 |
} |
} |
6427 |
|
|
6428 |
void File::UpdateFileOffsets() { |
void File::UpdateFileOffsets() { |