2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2016 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 * |
24 |
#include "gig.h" |
#include "gig.h" |
25 |
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|
26 |
#include "helper.h" |
#include "helper.h" |
27 |
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#include "Serialization.h" |
28 |
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29 |
#include <algorithm> |
#include <algorithm> |
30 |
#include <math.h> |
#include <math.h> |
56 |
#define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) |
#define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) |
57 |
#define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) |
#define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) |
58 |
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59 |
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#define SRLZ(member) \ |
60 |
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archive->serializeMember(*this, member, #member); |
61 |
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62 |
namespace gig { |
namespace gig { |
63 |
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64 |
// *************** Internal functions for sample decompression *************** |
// *************** Internal functions for sample decompression *************** |
273 |
* steps. |
* steps. |
274 |
* |
* |
275 |
* Once the whole data was processed by __calculateCRC(), one should |
* Once the whole data was processed by __calculateCRC(), one should |
276 |
* call __encodeCRC() to get the final CRC result. |
* call __finalizeCRC() to get the final CRC result. |
277 |
* |
* |
278 |
* @param buf - pointer to data the CRC shall be calculated of |
* @param buf - pointer to data the CRC shall be calculated of |
279 |
* @param bufSize - size of the data to be processed |
* @param bufSize - size of the data to be processed |
280 |
* @param crc - variable the CRC sum shall be stored to |
* @param crc - variable the CRC sum shall be stored to |
281 |
*/ |
*/ |
282 |
static void __calculateCRC(unsigned char* buf, int bufSize, uint32_t& crc) { |
static void __calculateCRC(unsigned char* buf, size_t bufSize, uint32_t& crc) { |
283 |
for (int i = 0 ; i < bufSize ; i++) { |
for (size_t i = 0 ; i < bufSize ; i++) { |
284 |
crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); |
crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); |
285 |
} |
} |
286 |
} |
} |
290 |
* |
* |
291 |
* @param crc - variable previously passed to __calculateCRC() |
* @param crc - variable previously passed to __calculateCRC() |
292 |
*/ |
*/ |
293 |
inline static uint32_t __encodeCRC(const uint32_t& crc) { |
inline static void __finalizeCRC(uint32_t& crc) { |
294 |
return crc ^ 0xffffffff; |
crc ^= 0xffffffff; |
295 |
} |
} |
296 |
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297 |
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319 |
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320 |
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321 |
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322 |
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// *************** leverage_ctrl_t *************** |
323 |
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// * |
324 |
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325 |
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void leverage_ctrl_t::serialize(Serialization::Archive* archive) { |
326 |
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SRLZ(type); |
327 |
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SRLZ(controller_number); |
328 |
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} |
329 |
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330 |
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331 |
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332 |
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// *************** crossfade_t *************** |
333 |
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// * |
334 |
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335 |
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void crossfade_t::serialize(Serialization::Archive* archive) { |
336 |
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SRLZ(in_start); |
337 |
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SRLZ(in_end); |
338 |
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SRLZ(out_start); |
339 |
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SRLZ(out_end); |
340 |
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} |
341 |
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342 |
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343 |
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344 |
// *************** Sample *************** |
// *************** Sample *************** |
345 |
// * |
// * |
346 |
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|
347 |
unsigned int Sample::Instances = 0; |
size_t Sample::Instances = 0; |
348 |
buffer_t Sample::InternalDecompressionBuffer; |
buffer_t Sample::InternalDecompressionBuffer; |
349 |
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|
350 |
/** @brief Constructor. |
/** @brief Constructor. |
364 |
* ('wvpl') list chunk |
* ('wvpl') list chunk |
365 |
* @param fileNo - number of an extension file where this sample |
* @param fileNo - number of an extension file where this sample |
366 |
* is located, 0 otherwise |
* is located, 0 otherwise |
367 |
|
* @param index - wave pool index of sample (may be -1 on new sample) |
368 |
*/ |
*/ |
369 |
Sample::Sample(File* pFile, RIFF::List* waveList, file_offset_t 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) |
370 |
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: DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) |
371 |
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{ |
372 |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
373 |
{ CHUNK_ID_INAM, 64 }, |
{ CHUNK_ID_INAM, 64 }, |
374 |
{ 0, 0 } |
{ 0, 0 } |
378 |
FileNo = fileNo; |
FileNo = fileNo; |
379 |
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|
380 |
__resetCRC(crc); |
__resetCRC(crc); |
381 |
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// if this is not a new sample, try to get the sample's already existing |
382 |
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// CRC32 checksum from disk, this checksum will reflect the sample's CRC32 |
383 |
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// checksum of the time when the sample was consciously modified by the |
384 |
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// user for the last time (by calling Sample::Write() that is). |
385 |
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if (index >= 0) { // not a new file ... |
386 |
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try { |
387 |
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uint32_t crc = pFile->GetSampleChecksumByIndex(index); |
388 |
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this->crc = crc; |
389 |
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} catch (...) {} |
390 |
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} |
391 |
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|
392 |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
393 |
if (pCk3gix) { |
if (pCk3gix) { |
828 |
* FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with |
* FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with |
829 |
* other formats will fail! |
* other formats will fail! |
830 |
* |
* |
831 |
* @param iNewSize - new sample wave data size in sample points (must be |
* @param NewSize - new sample wave data size in sample points (must be |
832 |
* greater than zero) |
* greater than zero) |
833 |
* @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM |
* @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM |
834 |
* or if \a iNewSize is less than 1 |
* @throws DLS::Exception if \a NewSize is less than 1 or unrealistic large |
835 |
* @throws gig::Exception if existing sample is compressed |
* @throws gig::Exception if existing sample is compressed |
836 |
* @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, |
* @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, |
837 |
* DLS::Sample::FormatTag, File::Save() |
* DLS::Sample::FormatTag, File::Save() |
838 |
*/ |
*/ |
839 |
void Sample::Resize(int iNewSize) { |
void Sample::Resize(file_offset_t NewSize) { |
840 |
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)"); |
841 |
DLS::Sample::Resize(iNewSize); |
DLS::Sample::Resize(NewSize); |
842 |
} |
} |
843 |
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|
844 |
/** |
/** |
1320 |
// if this is the last write, update the checksum chunk in the |
// if this is the last write, update the checksum chunk in the |
1321 |
// file |
// file |
1322 |
if (pCkData->GetPos() == pCkData->GetSize()) { |
if (pCkData->GetPos() == pCkData->GetSize()) { |
1323 |
|
__finalizeCRC(crc); |
1324 |
File* pFile = static_cast<File*>(GetParent()); |
File* pFile = static_cast<File*>(GetParent()); |
1325 |
pFile->SetSampleChecksum(this, __encodeCRC(crc)); |
pFile->SetSampleChecksum(this, crc); |
1326 |
} |
} |
1327 |
return res; |
return res; |
1328 |
} |
} |
1381 |
return pGroup; |
return pGroup; |
1382 |
} |
} |
1383 |
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1384 |
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/** |
1385 |
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* Returns the CRC-32 checksum of the sample's raw wave form data at the |
1386 |
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* time when this sample's wave form data was modified for the last time |
1387 |
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* by calling Write(). This checksum only covers the raw wave form data, |
1388 |
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* not any meta informations like i.e. bit depth or loop points. Since |
1389 |
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* this method just returns the checksum stored for this sample i.e. when |
1390 |
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* the gig file was loaded, this method returns immediately. So it does no |
1391 |
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* recalcuation of the checksum with the currently available sample wave |
1392 |
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* form data. |
1393 |
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* |
1394 |
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* @see VerifyWaveData() |
1395 |
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*/ |
1396 |
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uint32_t Sample::GetWaveDataCRC32Checksum() { |
1397 |
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return crc; |
1398 |
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} |
1399 |
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1400 |
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/** |
1401 |
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* Checks the integrity of this sample's raw audio wave data. Whenever a |
1402 |
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* Sample's raw wave data is intentionally modified (i.e. by calling |
1403 |
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* Write() and supplying the new raw audio wave form data) a CRC32 checksum |
1404 |
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* is calculated and stored/updated for this sample, along to the sample's |
1405 |
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* meta informations. |
1406 |
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* |
1407 |
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* Now by calling this method the current raw audio wave data is checked |
1408 |
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* against the already stored CRC32 check sum in order to check whether the |
1409 |
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* sample data had been damaged unintentionally for some reason. Since by |
1410 |
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* calling this method always the entire raw audio wave data has to be |
1411 |
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* read, verifying all samples this way may take a long time accordingly. |
1412 |
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* And that's also the reason why the sample integrity is not checked by |
1413 |
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* default whenever a gig file is loaded. So this method must be called |
1414 |
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* explicitly to fulfill this task. |
1415 |
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* |
1416 |
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* @param pActually - (optional) if provided, will be set to the actually |
1417 |
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* calculated checksum of the current raw wave form data, |
1418 |
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* you can get the expected checksum instead by calling |
1419 |
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* GetWaveDataCRC32Checksum() |
1420 |
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* @returns true if sample is OK or false if the sample is damaged |
1421 |
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* @throws Exception if no checksum had been stored to disk for this |
1422 |
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* sample yet, or on I/O issues |
1423 |
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* @see GetWaveDataCRC32Checksum() |
1424 |
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*/ |
1425 |
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bool Sample::VerifyWaveData(uint32_t* pActually) { |
1426 |
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//File* pFile = static_cast<File*>(GetParent()); |
1427 |
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uint32_t crc = CalculateWaveDataChecksum(); |
1428 |
|
if (pActually) *pActually = crc; |
1429 |
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return crc == this->crc; |
1430 |
|
} |
1431 |
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1432 |
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uint32_t Sample::CalculateWaveDataChecksum() { |
1433 |
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const size_t sz = 20*1024; // 20kB buffer size |
1434 |
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std::vector<uint8_t> buffer(sz); |
1435 |
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buffer.resize(sz); |
1436 |
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|
1437 |
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const size_t n = sz / FrameSize; |
1438 |
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SetPos(0); |
1439 |
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uint32_t crc = 0; |
1440 |
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__resetCRC(crc); |
1441 |
|
while (true) { |
1442 |
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file_offset_t nRead = Read(&buffer[0], n); |
1443 |
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if (nRead <= 0) break; |
1444 |
|
__calculateCRC(&buffer[0], nRead * FrameSize, crc); |
1445 |
|
} |
1446 |
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__finalizeCRC(crc); |
1447 |
|
return crc; |
1448 |
|
} |
1449 |
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|
1450 |
Sample::~Sample() { |
Sample::~Sample() { |
1451 |
Instances--; |
Instances--; |
1452 |
if (!Instances && InternalDecompressionBuffer.Size) { |
if (!Instances && InternalDecompressionBuffer.Size) { |
1463 |
// *************** DimensionRegion *************** |
// *************** DimensionRegion *************** |
1464 |
// * |
// * |
1465 |
|
|
1466 |
uint DimensionRegion::Instances = 0; |
size_t DimensionRegion::Instances = 0; |
1467 |
DimensionRegion::VelocityTableMap* DimensionRegion::pVelocityTables = NULL; |
DimensionRegion::VelocityTableMap* DimensionRegion::pVelocityTables = NULL; |
1468 |
|
|
1469 |
DimensionRegion::DimensionRegion(Region* pParent, RIFF::List* _3ewl) : DLS::Sampler(_3ewl) { |
DimensionRegion::DimensionRegion(Region* pParent, RIFF::List* _3ewl) : DLS::Sampler(_3ewl) { |
1657 |
EG2Attack = 0.0; |
EG2Attack = 0.0; |
1658 |
EG2Decay1 = 0.005; |
EG2Decay1 = 0.005; |
1659 |
EG2Sustain = 1000; |
EG2Sustain = 1000; |
1660 |
EG2Release = 0.3; |
EG2Release = 60; |
1661 |
LFO2ControlDepth = 0; |
LFO2ControlDepth = 0; |
1662 |
LFO2Frequency = 1.0; |
LFO2Frequency = 1.0; |
1663 |
LFO2InternalDepth = 0; |
LFO2InternalDepth = 0; |
1816 |
} |
} |
1817 |
} |
} |
1818 |
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|
1819 |
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void DimensionRegion::serialize(Serialization::Archive* archive) { |
1820 |
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// in case this class will become backward incompatible one day, |
1821 |
|
// then set a version and minimum version for this class like: |
1822 |
|
//archive->setVersion(*this, 2); |
1823 |
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//archive->setMinVersion(*this, 1); |
1824 |
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|
1825 |
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SRLZ(VelocityUpperLimit); |
1826 |
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SRLZ(EG1PreAttack); |
1827 |
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SRLZ(EG1Attack); |
1828 |
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SRLZ(EG1Decay1); |
1829 |
|
SRLZ(EG1Decay2); |
1830 |
|
SRLZ(EG1InfiniteSustain); |
1831 |
|
SRLZ(EG1Sustain); |
1832 |
|
SRLZ(EG1Release); |
1833 |
|
SRLZ(EG1Hold); |
1834 |
|
SRLZ(EG1Controller); |
1835 |
|
SRLZ(EG1ControllerInvert); |
1836 |
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SRLZ(EG1ControllerAttackInfluence); |
1837 |
|
SRLZ(EG1ControllerDecayInfluence); |
1838 |
|
SRLZ(EG1ControllerReleaseInfluence); |
1839 |
|
SRLZ(LFO1Frequency); |
1840 |
|
SRLZ(LFO1InternalDepth); |
1841 |
|
SRLZ(LFO1ControlDepth); |
1842 |
|
SRLZ(LFO1Controller); |
1843 |
|
SRLZ(LFO1FlipPhase); |
1844 |
|
SRLZ(LFO1Sync); |
1845 |
|
SRLZ(EG2PreAttack); |
1846 |
|
SRLZ(EG2Attack); |
1847 |
|
SRLZ(EG2Decay1); |
1848 |
|
SRLZ(EG2Decay2); |
1849 |
|
SRLZ(EG2InfiniteSustain); |
1850 |
|
SRLZ(EG2Sustain); |
1851 |
|
SRLZ(EG2Release); |
1852 |
|
SRLZ(EG2Controller); |
1853 |
|
SRLZ(EG2ControllerInvert); |
1854 |
|
SRLZ(EG2ControllerAttackInfluence); |
1855 |
|
SRLZ(EG2ControllerDecayInfluence); |
1856 |
|
SRLZ(EG2ControllerReleaseInfluence); |
1857 |
|
SRLZ(LFO2Frequency); |
1858 |
|
SRLZ(LFO2InternalDepth); |
1859 |
|
SRLZ(LFO2ControlDepth); |
1860 |
|
SRLZ(LFO2Controller); |
1861 |
|
SRLZ(LFO2FlipPhase); |
1862 |
|
SRLZ(LFO2Sync); |
1863 |
|
SRLZ(EG3Attack); |
1864 |
|
SRLZ(EG3Depth); |
1865 |
|
SRLZ(LFO3Frequency); |
1866 |
|
SRLZ(LFO3InternalDepth); |
1867 |
|
SRLZ(LFO3ControlDepth); |
1868 |
|
SRLZ(LFO3Controller); |
1869 |
|
SRLZ(LFO3Sync); |
1870 |
|
SRLZ(VCFEnabled); |
1871 |
|
SRLZ(VCFType); |
1872 |
|
SRLZ(VCFCutoffController); |
1873 |
|
SRLZ(VCFCutoffControllerInvert); |
1874 |
|
SRLZ(VCFCutoff); |
1875 |
|
SRLZ(VCFVelocityCurve); |
1876 |
|
SRLZ(VCFVelocityScale); |
1877 |
|
SRLZ(VCFVelocityDynamicRange); |
1878 |
|
SRLZ(VCFResonance); |
1879 |
|
SRLZ(VCFResonanceDynamic); |
1880 |
|
SRLZ(VCFResonanceController); |
1881 |
|
SRLZ(VCFKeyboardTracking); |
1882 |
|
SRLZ(VCFKeyboardTrackingBreakpoint); |
1883 |
|
SRLZ(VelocityResponseCurve); |
1884 |
|
SRLZ(VelocityResponseDepth); |
1885 |
|
SRLZ(VelocityResponseCurveScaling); |
1886 |
|
SRLZ(ReleaseVelocityResponseCurve); |
1887 |
|
SRLZ(ReleaseVelocityResponseDepth); |
1888 |
|
SRLZ(ReleaseTriggerDecay); |
1889 |
|
SRLZ(Crossfade); |
1890 |
|
SRLZ(PitchTrack); |
1891 |
|
SRLZ(DimensionBypass); |
1892 |
|
SRLZ(Pan); |
1893 |
|
SRLZ(SelfMask); |
1894 |
|
SRLZ(AttenuationController); |
1895 |
|
SRLZ(InvertAttenuationController); |
1896 |
|
SRLZ(AttenuationControllerThreshold); |
1897 |
|
SRLZ(ChannelOffset); |
1898 |
|
SRLZ(SustainDefeat); |
1899 |
|
SRLZ(MSDecode); |
1900 |
|
//SRLZ(SampleStartOffset); |
1901 |
|
SRLZ(SampleAttenuation); |
1902 |
|
|
1903 |
|
// derived attributes from DLS::Sampler |
1904 |
|
SRLZ(FineTune); |
1905 |
|
SRLZ(Gain); |
1906 |
|
} |
1907 |
|
|
1908 |
/** |
/** |
1909 |
* Updates the respective member variable and updates @c SampleAttenuation |
* Updates the respective member variable and updates @c SampleAttenuation |
1910 |
* which depends on this value. |
* which depends on this value. |
1945 |
|
|
1946 |
// update '3ewa' chunk with DimensionRegion's current settings |
// update '3ewa' chunk with DimensionRegion's current settings |
1947 |
|
|
1948 |
const uint32_t chunksize = _3ewa->GetNewSize(); |
const uint32_t chunksize = (uint32_t) _3ewa->GetNewSize(); |
1949 |
store32(&pData[0], chunksize); // unknown, always chunk size? |
store32(&pData[0], chunksize); // unknown, always chunk size? |
1950 |
|
|
1951 |
const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); |
const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); |
3301 |
int step = 1; |
int step = 1; |
3302 |
for (int i = 0 ; i < veldim ; i++) step <<= pDimensionDefinitions[i].bits; |
for (int i = 0 ; i < veldim ; i++) step <<= pDimensionDefinitions[i].bits; |
3303 |
int skipveldim = (step << pDimensionDefinitions[veldim].bits) - step; |
int skipveldim = (step << pDimensionDefinitions[veldim].bits) - step; |
|
int end = step * pDimensionDefinitions[veldim].zones; |
|
3304 |
|
|
3305 |
// loop through all dimension regions for all dimensions except the velocity dimension |
// loop through all dimension regions for all dimensions except the velocity dimension |
3306 |
int dim[8] = { 0 }; |
int dim[8] = { 0 }; |
3307 |
for (int i = 0 ; i < DimensionRegions ; i++) { |
for (int i = 0 ; i < DimensionRegions ; i++) { |
3308 |
|
const int end = i + step * pDimensionDefinitions[veldim].zones; |
3309 |
|
|
3310 |
|
// create a velocity table for all cases where the velocity zone is zero |
3311 |
if (pDimensionRegions[i]->DimensionUpperLimits[veldim] || |
if (pDimensionRegions[i]->DimensionUpperLimits[veldim] || |
3312 |
pDimensionRegions[i]->VelocityUpperLimit) { |
pDimensionRegions[i]->VelocityUpperLimit) { |
3313 |
// create the velocity table |
// create the velocity table |
3338 |
} |
} |
3339 |
} |
} |
3340 |
|
|
3341 |
|
// jump to the next case where the velocity zone is zero |
3342 |
int j; |
int j; |
3343 |
int shift = 0; |
int shift = 0; |
3344 |
for (j = 0 ; j < Dimensions ; j++) { |
for (j = 0 ; j < Dimensions ; j++) { |
3913 |
DimensionRegion* Region::GetDimensionRegionByValue(const uint DimValues[8]) { |
DimensionRegion* Region::GetDimensionRegionByValue(const uint DimValues[8]) { |
3914 |
uint8_t bits; |
uint8_t bits; |
3915 |
int veldim = -1; |
int veldim = -1; |
3916 |
int velbitpos; |
int velbitpos = 0; |
3917 |
int bitpos = 0; |
int bitpos = 0; |
3918 |
int dimregidx = 0; |
int dimregidx = 0; |
3919 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
3962 |
int Region::GetDimensionRegionIndexByValue(const uint DimValues[8]) { |
int Region::GetDimensionRegionIndexByValue(const uint DimValues[8]) { |
3963 |
uint8_t bits; |
uint8_t bits; |
3964 |
int veldim = -1; |
int veldim = -1; |
3965 |
int velbitpos; |
int velbitpos = 0; |
3966 |
int bitpos = 0; |
int bitpos = 0; |
3967 |
int dimregidx = 0; |
int dimregidx = 0; |
3968 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
4311 |
// to handle potential future extensions of the header |
// to handle potential future extensions of the header |
4312 |
ckScri->SetPos(sizeof(int32_t) + headerSize); |
ckScri->SetPos(sizeof(int32_t) + headerSize); |
4313 |
// read actual script data |
// read actual script data |
4314 |
uint32_t scriptSize = ckScri->GetSize() - ckScri->GetPos(); |
uint32_t scriptSize = uint32_t(ckScri->GetSize() - ckScri->GetPos()); |
4315 |
data.resize(scriptSize); |
data.resize(scriptSize); |
4316 |
for (int i = 0; i < scriptSize; ++i) |
for (int i = 0; i < scriptSize; ++i) |
4317 |
data[i] = ckScri->ReadUint8(); |
data[i] = ckScri->ReadUint8(); |
4362 |
// recalculate CRC32 check sum |
// recalculate CRC32 check sum |
4363 |
__resetCRC(crc); |
__resetCRC(crc); |
4364 |
__calculateCRC(&data[0], data.size(), crc); |
__calculateCRC(&data[0], data.size(), crc); |
4365 |
__encodeCRC(crc); |
__finalizeCRC(crc); |
4366 |
// make sure chunk exists and has the required size |
// make sure chunk exists and has the required size |
4367 |
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(); |
4368 |
if (!pChunk) pChunk = pGroup->pList->AddSubChunk(CHUNK_ID_SCRI, chunkSize); |
if (!pChunk) pChunk = pGroup->pList->AddSubChunk(CHUNK_ID_SCRI, chunkSize); |
4369 |
else pChunk->Resize(chunkSize); |
else pChunk->Resize(chunkSize); |
4370 |
// fill the chunk data to be written to disk |
// fill the chunk data to be written to disk |
4371 |
uint8_t* pData = (uint8_t*) pChunk->LoadChunkData(); |
uint8_t* pData = (uint8_t*) pChunk->LoadChunkData(); |
4372 |
int pos = 0; |
int pos = 0; |
4373 |
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 |
4374 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4375 |
store32(&pData[pos], Compression); |
store32(&pData[pos], Compression); |
4376 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4382 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4383 |
store32(&pData[pos], crc); |
store32(&pData[pos], crc); |
4384 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4385 |
store32(&pData[pos], Name.size()); |
store32(&pData[pos], (uint32_t) Name.size()); |
4386 |
pos += sizeof(int32_t); |
pos += sizeof(int32_t); |
4387 |
for (int i = 0; i < Name.size(); ++i, ++pos) |
for (int i = 0; i < Name.size(); ++i, ++pos) |
4388 |
pData[pos] = Name[i]; |
pData[pos] = Name[i]; |
4413 |
return pGroup; |
return pGroup; |
4414 |
} |
} |
4415 |
|
|
4416 |
|
/** |
4417 |
|
* Make a (semi) deep copy of the Script object given by @a orig |
4418 |
|
* and assign it to this object. Note: the ScriptGroup this Script |
4419 |
|
* object belongs to remains untouched by this call. |
4420 |
|
* |
4421 |
|
* @param orig - original Script object to be copied from |
4422 |
|
*/ |
4423 |
|
void Script::CopyAssign(const Script* orig) { |
4424 |
|
Name = orig->Name; |
4425 |
|
Compression = orig->Compression; |
4426 |
|
Encoding = orig->Encoding; |
4427 |
|
Language = orig->Language; |
4428 |
|
Bypass = orig->Bypass; |
4429 |
|
data = orig->data; |
4430 |
|
} |
4431 |
|
|
4432 |
void Script::RemoveAllScriptReferences() { |
void Script::RemoveAllScriptReferences() { |
4433 |
File* pFile = pGroup->pFile; |
File* pFile = pGroup->pFile; |
4434 |
for (int i = 0; pFile->GetInstrument(i); ++i) { |
for (int i = 0; pFile->GetInstrument(i); ++i) { |
4575 |
EffectSend = 0; |
EffectSend = 0; |
4576 |
Attenuation = 0; |
Attenuation = 0; |
4577 |
FineTune = 0; |
FineTune = 0; |
4578 |
PitchbendRange = 0; |
PitchbendRange = 2; |
4579 |
PianoReleaseMode = false; |
PianoReleaseMode = false; |
4580 |
DimensionKeyRange.low = 0; |
DimensionKeyRange.low = 0; |
4581 |
DimensionKeyRange.high = 0; |
DimensionKeyRange.high = 0; |
4750 |
|
|
4751 |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
4752 |
if (!lst3LS) lst3LS = pCkInstrument->AddSubList(LIST_TYPE_3LS); |
if (!lst3LS) lst3LS = pCkInstrument->AddSubList(LIST_TYPE_3LS); |
4753 |
const int slotCount = pScriptRefs->size(); |
const int slotCount = (int) pScriptRefs->size(); |
4754 |
const int headerSize = 3 * sizeof(uint32_t); |
const int headerSize = 3 * sizeof(uint32_t); |
4755 |
const int slotSize = 2 * sizeof(uint32_t); |
const int slotSize = 2 * sizeof(uint32_t); |
4756 |
const int totalChunkSize = headerSize + slotCount * slotSize; |
const int totalChunkSize = headerSize + slotCount * slotSize; |
4786 |
if (pScriptRefs && pScriptRefs->size() > 0) { |
if (pScriptRefs && pScriptRefs->size() > 0) { |
4787 |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
RIFF::List* lst3LS = pCkInstrument->GetSubList(LIST_TYPE_3LS); |
4788 |
RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL); |
RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL); |
4789 |
const int slotCount = pScriptRefs->size(); |
const int slotCount = (int) pScriptRefs->size(); |
4790 |
const int headerSize = 3 * sizeof(uint32_t); |
const int headerSize = 3 * sizeof(uint32_t); |
4791 |
ckSCSL->SetPos(headerSize); |
ckSCSL->SetPos(headerSize); |
4792 |
for (int i = 0; i < slotCount; ++i) { |
for (int i = 0; i < slotCount; ++i) { |
4793 |
uint32_t fileOffset = |
uint32_t fileOffset = uint32_t( |
4794 |
(*pScriptRefs)[i].script->pChunk->GetFilePos() - |
(*pScriptRefs)[i].script->pChunk->GetFilePos() - |
4795 |
(*pScriptRefs)[i].script->pChunk->GetPos() - |
(*pScriptRefs)[i].script->pChunk->GetPos() - |
4796 |
CHUNK_HEADER_SIZE(ckSCSL->GetFile()->GetFileOffsetSize()); |
CHUNK_HEADER_SIZE(ckSCSL->GetFile()->GetFileOffsetSize()) |
4797 |
|
); |
4798 |
ckSCSL->WriteUint32(&fileOffset); |
ckSCSL->WriteUint32(&fileOffset); |
4799 |
// jump over flags entry (containing the bypass flag) |
// jump over flags entry (containing the bypass flag) |
4800 |
ckSCSL->SetPos(sizeof(uint32_t), RIFF::stream_curpos); |
ckSCSL->SetPos(sizeof(uint32_t), RIFF::stream_curpos); |
4854 |
RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN); |
RIFF::List* rgn = lrgn->AddSubList(LIST_TYPE_RGN); |
4855 |
Region* pNewRegion = new Region(this, rgn); |
Region* pNewRegion = new Region(this, rgn); |
4856 |
pRegions->push_back(pNewRegion); |
pRegions->push_back(pNewRegion); |
4857 |
Regions = pRegions->size(); |
Regions = (uint32_t) pRegions->size(); |
4858 |
// update Region key table for fast lookup |
// update Region key table for fast lookup |
4859 |
UpdateRegionKeyTable(); |
UpdateRegionKeyTable(); |
4860 |
// done |
// done |
5000 |
for (uint s = 0; group->GetScript(s); ++s) { |
for (uint s = 0; group->GetScript(s); ++s) { |
5001 |
Script* script = group->GetScript(s); |
Script* script = group->GetScript(s); |
5002 |
if (script->pChunk) { |
if (script->pChunk) { |
5003 |
uint32_t offset = script->pChunk->GetFilePos() - |
uint32_t offset = uint32_t( |
5004 |
script->pChunk->GetPos() - |
script->pChunk->GetFilePos() - |
5005 |
CHUNK_HEADER_SIZE(script->pChunk->GetFile()->GetFileOffsetSize()); |
script->pChunk->GetPos() - |
5006 |
|
CHUNK_HEADER_SIZE(script->pChunk->GetFile()->GetFileOffsetSize()) |
5007 |
|
); |
5008 |
if (offset == soughtOffset) |
if (offset == soughtOffset) |
5009 |
{ |
{ |
5010 |
_ScriptPooolRef ref; |
_ScriptPooolRef ref; |
5129 |
*/ |
*/ |
5130 |
void Instrument::RemoveScript(Script* pScript) { |
void Instrument::RemoveScript(Script* pScript) { |
5131 |
LoadScripts(); |
LoadScripts(); |
5132 |
for (int i = pScriptRefs->size() - 1; i >= 0; --i) { |
for (ssize_t i = pScriptRefs->size() - 1; i >= 0; --i) { |
5133 |
if ((*pScriptRefs)[i].script == pScript) { |
if ((*pScriptRefs)[i].script == pScript) { |
5134 |
pScriptRefs->erase( pScriptRefs->begin() + i ); |
pScriptRefs->erase( pScriptRefs->begin() + i ); |
5135 |
} |
} |
5151 |
* gigedit. |
* gigedit. |
5152 |
*/ |
*/ |
5153 |
uint Instrument::ScriptSlotCount() const { |
uint Instrument::ScriptSlotCount() const { |
5154 |
return pScriptRefs ? pScriptRefs->size() : scriptPoolFileOffsets.size(); |
return uint(pScriptRefs ? pScriptRefs->size() : scriptPoolFileOffsets.size()); |
5155 |
} |
} |
5156 |
|
|
5157 |
/** @brief Whether script execution shall be skipped. |
/** @brief Whether script execution shall be skipped. |
5575 |
} |
} |
5576 |
} |
} |
5577 |
String name(pRIFF->GetFileName()); |
String name(pRIFF->GetFileName()); |
5578 |
int nameLen = name.length(); |
int nameLen = (int) name.length(); |
5579 |
char suffix[6]; |
char suffix[6]; |
5580 |
if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4; |
if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4; |
5581 |
|
|
5591 |
__notify_progress(pProgress, subprogress); |
__notify_progress(pProgress, subprogress); |
5592 |
|
|
5593 |
file_offset_t waveFileOffset = wave->GetFilePos(); |
file_offset_t waveFileOffset = wave->GetFilePos(); |
5594 |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo)); |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo, iSampleIndex)); |
5595 |
|
|
5596 |
iSampleIndex++; |
iSampleIndex++; |
5597 |
} |
} |
5744 |
mGroups[pFile->GetSample(i)->GetGroup()]->AddSample(s); |
mGroups[pFile->GetSample(i)->GetGroup()]->AddSample(s); |
5745 |
mSamples[pFile->GetSample(i)] = s; |
mSamples[pFile->GetSample(i)] = s; |
5746 |
} |
} |
5747 |
|
|
5748 |
|
// clone script groups and their scripts |
5749 |
|
for (int iGroup = 0; pFile->GetScriptGroup(iGroup); ++iGroup) { |
5750 |
|
ScriptGroup* sg = pFile->GetScriptGroup(iGroup); |
5751 |
|
ScriptGroup* dg = AddScriptGroup(); |
5752 |
|
dg->Name = "COPY" + ToString(iCallCount) + "_" + sg->Name; |
5753 |
|
for (int iScript = 0; sg->GetScript(iScript); ++iScript) { |
5754 |
|
Script* ss = sg->GetScript(iScript); |
5755 |
|
Script* ds = dg->AddScript(); |
5756 |
|
ds->CopyAssign(ss); |
5757 |
|
} |
5758 |
|
} |
5759 |
|
|
5760 |
//BUG: For some reason this method only works with this additional |
//BUG: For some reason this method only works with this additional |
5761 |
// Save() call in between here. |
// Save() call in between here. |
5762 |
// |
// |
5841 |
if (!_3crc) return; |
if (!_3crc) return; |
5842 |
|
|
5843 |
// get the index of the sample |
// get the index of the sample |
5844 |
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; |
|
|
} |
|
|
} |
|
5845 |
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"); |
5846 |
|
|
5847 |
// write the CRC-32 checksum to disk |
// write the CRC-32 checksum to disk |
5848 |
_3crc->SetPos(iWaveIndex * 8); |
_3crc->SetPos(iWaveIndex * 8); |
5849 |
uint32_t tmp = 1; |
uint32_t one = 1; |
5850 |
_3crc->WriteUint32(&tmp); // unknown, always 1? |
_3crc->WriteUint32(&one); // always 1 |
5851 |
_3crc->WriteUint32(&crc); |
_3crc->WriteUint32(&crc); |
5852 |
} |
} |
5853 |
|
|
5854 |
|
uint32_t File::GetSampleChecksum(Sample* pSample) { |
5855 |
|
// get the index of the sample |
5856 |
|
int iWaveIndex = GetWaveTableIndexOf(pSample); |
5857 |
|
if (iWaveIndex < 0) throw gig::Exception("Could not retrieve reference crc of sample, could not resolve sample's wave table index"); |
5858 |
|
|
5859 |
|
return GetSampleChecksumByIndex(iWaveIndex); |
5860 |
|
} |
5861 |
|
|
5862 |
|
uint32_t File::GetSampleChecksumByIndex(int index) { |
5863 |
|
if (index < 0) throw gig::Exception("Could not retrieve reference crc of sample, invalid wave pool index of sample"); |
5864 |
|
|
5865 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5866 |
|
if (!_3crc) throw gig::Exception("Could not retrieve reference crc of sample, no checksums stored for this file yet"); |
5867 |
|
uint8_t* pData = (uint8_t*) _3crc->LoadChunkData(); |
5868 |
|
if (!pData) throw gig::Exception("Could not retrieve reference crc of sample, no checksums stored for this file yet"); |
5869 |
|
|
5870 |
|
// read the CRC-32 checksum directly from disk |
5871 |
|
size_t pos = index * 8; |
5872 |
|
if (pos + 8 > _3crc->GetNewSize()) |
5873 |
|
throw gig::Exception("Could not retrieve reference crc of sample, could not seek to required position in crc chunk"); |
5874 |
|
|
5875 |
|
uint32_t one = load32(&pData[pos]); // always 1 |
5876 |
|
if (one != 1) |
5877 |
|
throw gig::Exception("Could not retrieve reference crc of sample, because reference checksum table is damaged"); |
5878 |
|
|
5879 |
|
return load32(&pData[pos+4]); |
5880 |
|
} |
5881 |
|
|
5882 |
|
int File::GetWaveTableIndexOf(gig::Sample* pSample) { |
5883 |
|
if (!pSamples) GetFirstSample(); // make sure sample chunks were scanned |
5884 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5885 |
|
File::SampleList::iterator end = pSamples->end(); |
5886 |
|
for (int index = 0; iter != end; ++iter, ++index) |
5887 |
|
if (*iter == pSample) |
5888 |
|
return index; |
5889 |
|
return -1; |
5890 |
|
} |
5891 |
|
|
5892 |
|
/** |
5893 |
|
* Checks whether the file's "3CRC" chunk was damaged. This chunk contains |
5894 |
|
* the CRC32 check sums of all samples' raw wave data. |
5895 |
|
* |
5896 |
|
* @return true if 3CRC chunk is OK, or false if 3CRC chunk is damaged |
5897 |
|
*/ |
5898 |
|
bool File::VerifySampleChecksumTable() { |
5899 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5900 |
|
if (!_3crc) return false; |
5901 |
|
if (_3crc->GetNewSize() <= 0) return false; |
5902 |
|
if (_3crc->GetNewSize() % 8) return false; |
5903 |
|
if (!pSamples) GetFirstSample(); // make sure sample chunks were scanned |
5904 |
|
if (_3crc->GetNewSize() != pSamples->size() * 8) return false; |
5905 |
|
|
5906 |
|
const file_offset_t n = _3crc->GetNewSize() / 8; |
5907 |
|
|
5908 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
5909 |
|
if (!pData) return false; |
5910 |
|
|
5911 |
|
for (file_offset_t i = 0; i < n; ++i) { |
5912 |
|
uint32_t one = pData[i*2]; |
5913 |
|
if (one != 1) return false; |
5914 |
|
} |
5915 |
|
|
5916 |
|
return true; |
5917 |
|
} |
5918 |
|
|
5919 |
|
/** |
5920 |
|
* Recalculates CRC32 checksums for all samples and rebuilds this gig |
5921 |
|
* file's checksum table with those new checksums. This might usually |
5922 |
|
* just be necessary if the checksum table was damaged. |
5923 |
|
* |
5924 |
|
* @e IMPORTANT: The current implementation of this method only works |
5925 |
|
* with files that have not been modified since it was loaded, because |
5926 |
|
* it expects that no externally caused file structure changes are |
5927 |
|
* required! |
5928 |
|
* |
5929 |
|
* Due to the expectation above, this method is currently protected |
5930 |
|
* and actually only used by the command line tool "gigdump" yet. |
5931 |
|
* |
5932 |
|
* @returns true if Save() is required to be called after this call, |
5933 |
|
* false if no further action is required |
5934 |
|
*/ |
5935 |
|
bool File::RebuildSampleChecksumTable() { |
5936 |
|
// make sure sample chunks were scanned |
5937 |
|
if (!pSamples) GetFirstSample(); |
5938 |
|
|
5939 |
|
bool bRequiresSave = false; |
5940 |
|
|
5941 |
|
// make sure "3CRC" chunk exists with required size |
5942 |
|
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
5943 |
|
if (!_3crc) { |
5944 |
|
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
5945 |
|
// the order of einf and 3crc is not the same in v2 and v3 |
5946 |
|
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
5947 |
|
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
5948 |
|
bRequiresSave = true; |
5949 |
|
} else if (_3crc->GetNewSize() != pSamples->size() * 8) { |
5950 |
|
_3crc->Resize(pSamples->size() * 8); |
5951 |
|
bRequiresSave = true; |
5952 |
|
} |
5953 |
|
|
5954 |
|
if (bRequiresSave) { // refill CRC table for all samples in RAM ... |
5955 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
5956 |
|
{ |
5957 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5958 |
|
File::SampleList::iterator end = pSamples->end(); |
5959 |
|
for (; iter != end; ++iter) { |
5960 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
5961 |
|
int index = GetWaveTableIndexOf(pSample); |
5962 |
|
if (index < 0) throw gig::Exception("Could not rebuild crc table for samples, wave table index of a sample could not be resolved"); |
5963 |
|
pData[index*2] = 1; // always 1 |
5964 |
|
pData[index*2+1] = pSample->CalculateWaveDataChecksum(); |
5965 |
|
} |
5966 |
|
} |
5967 |
|
} else { // no file structure changes necessary, so directly write to disk and we are done ... |
5968 |
|
// make sure file is in write mode |
5969 |
|
pRIFF->SetMode(RIFF::stream_mode_read_write); |
5970 |
|
{ |
5971 |
|
File::SampleList::iterator iter = pSamples->begin(); |
5972 |
|
File::SampleList::iterator end = pSamples->end(); |
5973 |
|
for (; iter != end; ++iter) { |
5974 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
5975 |
|
int index = GetWaveTableIndexOf(pSample); |
5976 |
|
if (index < 0) throw gig::Exception("Could not rebuild crc table for samples, wave table index of a sample could not be resolved"); |
5977 |
|
pSample->crc = pSample->CalculateWaveDataChecksum(); |
5978 |
|
SetSampleChecksum(pSample, pSample->crc); |
5979 |
|
} |
5980 |
|
} |
5981 |
|
} |
5982 |
|
|
5983 |
|
return bRequiresSave; |
5984 |
|
} |
5985 |
|
|
5986 |
Group* File::GetFirstGroup() { |
Group* File::GetFirstGroup() { |
5987 |
if (!pGroups) LoadGroups(); |
if (!pGroups) LoadGroups(); |
5988 |
// there must always be at least one group |
// there must always be at least one group |
6300 |
// Note that there are several fields with unknown use. These |
// Note that there are several fields with unknown use. These |
6301 |
// are set to zero. |
// are set to zero. |
6302 |
|
|
6303 |
int sublen = pSamples->size() / 8 + 49; |
int sublen = int(pSamples->size() / 8 + 49); |
6304 |
int einfSize = (Instruments + 1) * sublen; |
int einfSize = (Instruments + 1) * sublen; |
6305 |
|
|
6306 |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); |
6373 |
store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops); |
store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops); |
6374 |
// next 8 bytes unknown |
// next 8 bytes unknown |
6375 |
store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx); |
store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx); |
6376 |
store32(&pData[(instrumentIdx + 1) * sublen + 40], pSamples->size()); |
store32(&pData[(instrumentIdx + 1) * sublen + 40], (uint32_t) pSamples->size()); |
6377 |
// next 4 bytes unknown |
// next 4 bytes unknown |
6378 |
|
|
6379 |
totnbregions += instrument->Regions; |
totnbregions += instrument->Regions; |
6391 |
store32(&pData[24], totnbloops); |
store32(&pData[24], totnbloops); |
6392 |
// next 8 bytes unknown |
// next 8 bytes unknown |
6393 |
// next 4 bytes unknown, not always 0 |
// next 4 bytes unknown, not always 0 |
6394 |
store32(&pData[40], pSamples->size()); |
store32(&pData[40], (uint32_t) pSamples->size()); |
6395 |
// next 4 bytes unknown |
// next 4 bytes unknown |
6396 |
} |
} |
6397 |
|
|
6398 |
// update 3crc chunk |
// update 3crc chunk |
6399 |
|
|
6400 |
// The 3crc chunk contains CRC-32 checksums for the |
// The 3crc chunk contains CRC-32 checksums for the |
6401 |
// samples. The actual checksum values will be filled in |
// samples. When saving a gig file to disk, we first update the 3CRC |
6402 |
// later, by Sample::Write. |
// chunk here (in RAM) with the old crc values which we read from the |
6403 |
|
// 3CRC chunk when we opened the file (available with gig::Sample::crc |
6404 |
|
// member variable). This step is required, because samples might have |
6405 |
|
// been deleted by the user since the file was opened, which in turn |
6406 |
|
// changes the order of the (i.e. old) checksums within the 3crc chunk. |
6407 |
|
// If a sample was conciously modified by the user (that is if |
6408 |
|
// Sample::Write() was called later on) then Sample::Write() will just |
6409 |
|
// update the respective individual checksum(s) directly on disk and |
6410 |
|
// leaves all other sample checksums untouched. |
6411 |
|
|
6412 |
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); |
6413 |
if (_3crc) { |
if (_3crc) { |
6414 |
_3crc->Resize(pSamples->size() * 8); |
_3crc->Resize(pSamples->size() * 8); |
6415 |
} else if (newFile) { |
} else /*if (newFile)*/ { |
6416 |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
_3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); |
|
_3crc->LoadChunkData(); |
|
|
|
|
6417 |
// 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 |
6418 |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); |
6419 |
} |
} |
6420 |
|
{ // must be performed in RAM here ... |
6421 |
|
uint32_t* pData = (uint32_t*) _3crc->LoadChunkData(); |
6422 |
|
if (pData) { |
6423 |
|
File::SampleList::iterator iter = pSamples->begin(); |
6424 |
|
File::SampleList::iterator end = pSamples->end(); |
6425 |
|
for (int index = 0; iter != end; ++iter, ++index) { |
6426 |
|
gig::Sample* pSample = (gig::Sample*) *iter; |
6427 |
|
pData[index*2] = 1; // always 1 |
6428 |
|
pData[index*2+1] = pSample->crc; |
6429 |
|
} |
6430 |
|
} |
6431 |
|
} |
6432 |
} |
} |
6433 |
|
|
6434 |
void File::UpdateFileOffsets() { |
void File::UpdateFileOffsets() { |