2 |
* * |
* * |
3 |
* libgig - C++ cross-platform Gigasampler format file access library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
4 |
* * |
* * |
5 |
* Copyright (C) 2003-2007 by Christian Schoenebeck * |
* Copyright (C) 2003-2009 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 * |
25 |
|
|
26 |
#include "helper.h" |
#include "helper.h" |
27 |
|
|
28 |
|
#include <algorithm> |
29 |
#include <math.h> |
#include <math.h> |
30 |
#include <iostream> |
#include <iostream> |
31 |
|
|
256 |
|
|
257 |
|
|
258 |
|
|
259 |
|
// *************** Internal CRC-32 (Cyclic Redundancy Check) functions *************** |
260 |
|
// * |
261 |
|
|
262 |
|
static uint32_t* __initCRCTable() { |
263 |
|
static uint32_t res[256]; |
264 |
|
|
265 |
|
for (int i = 0 ; i < 256 ; i++) { |
266 |
|
uint32_t c = i; |
267 |
|
for (int j = 0 ; j < 8 ; j++) { |
268 |
|
c = (c & 1) ? 0xedb88320 ^ (c >> 1) : c >> 1; |
269 |
|
} |
270 |
|
res[i] = c; |
271 |
|
} |
272 |
|
return res; |
273 |
|
} |
274 |
|
|
275 |
|
static const uint32_t* __CRCTable = __initCRCTable(); |
276 |
|
|
277 |
|
/** |
278 |
|
* Initialize a CRC variable. |
279 |
|
* |
280 |
|
* @param crc - variable to be initialized |
281 |
|
*/ |
282 |
|
inline static void __resetCRC(uint32_t& crc) { |
283 |
|
crc = 0xffffffff; |
284 |
|
} |
285 |
|
|
286 |
|
/** |
287 |
|
* Used to calculate checksums of the sample data in a gig file. The |
288 |
|
* checksums are stored in the 3crc chunk of the gig file and |
289 |
|
* automatically updated when a sample is written with Sample::Write(). |
290 |
|
* |
291 |
|
* One should call __resetCRC() to initialize the CRC variable to be |
292 |
|
* used before calling this function the first time. |
293 |
|
* |
294 |
|
* After initializing the CRC variable one can call this function |
295 |
|
* arbitrary times, i.e. to split the overall CRC calculation into |
296 |
|
* steps. |
297 |
|
* |
298 |
|
* Once the whole data was processed by __calculateCRC(), one should |
299 |
|
* call __encodeCRC() to get the final CRC result. |
300 |
|
* |
301 |
|
* @param buf - pointer to data the CRC shall be calculated of |
302 |
|
* @param bufSize - size of the data to be processed |
303 |
|
* @param crc - variable the CRC sum shall be stored to |
304 |
|
*/ |
305 |
|
static void __calculateCRC(unsigned char* buf, int bufSize, uint32_t& crc) { |
306 |
|
for (int i = 0 ; i < bufSize ; i++) { |
307 |
|
crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); |
308 |
|
} |
309 |
|
} |
310 |
|
|
311 |
|
/** |
312 |
|
* Returns the final CRC result. |
313 |
|
* |
314 |
|
* @param crc - variable previously passed to __calculateCRC() |
315 |
|
*/ |
316 |
|
inline static uint32_t __encodeCRC(const uint32_t& crc) { |
317 |
|
return crc ^ 0xffffffff; |
318 |
|
} |
319 |
|
|
320 |
|
|
321 |
|
|
322 |
// *************** Other Internal functions *************** |
// *************** Other Internal functions *************** |
323 |
// * |
// * |
324 |
|
|
342 |
|
|
343 |
|
|
344 |
|
|
|
// *************** CRC *************** |
|
|
// * |
|
|
|
|
|
const uint32_t* CRC::table(initTable()); |
|
|
|
|
|
uint32_t* CRC::initTable() { |
|
|
uint32_t* res = new uint32_t[256]; |
|
|
|
|
|
for (int i = 0 ; i < 256 ; i++) { |
|
|
uint32_t c = i; |
|
|
for (int j = 0 ; j < 8 ; j++) { |
|
|
c = (c & 1) ? 0xedb88320 ^ (c >> 1) : c >> 1; |
|
|
} |
|
|
res[i] = c; |
|
|
} |
|
|
return res; |
|
|
} |
|
|
|
|
|
|
|
|
|
|
345 |
// *************** Sample *************** |
// *************** Sample *************** |
346 |
// * |
// * |
347 |
|
|
367 |
* is located, 0 otherwise |
* is located, 0 otherwise |
368 |
*/ |
*/ |
369 |
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, unsigned long WavePoolOffset, unsigned long fileNo) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { |
370 |
static const DLS::Info::FixedStringLength fixedStringLengths[] = { |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
371 |
{ CHUNK_ID_INAM, 64 }, |
{ CHUNK_ID_INAM, 64 }, |
372 |
{ 0, 0 } |
{ 0, 0 } |
373 |
}; |
}; |
374 |
pInfo->FixedStringLengths = fixedStringLengths; |
pInfo->SetFixedStringLengths(fixedStringLengths); |
375 |
Instances++; |
Instances++; |
376 |
FileNo = fileNo; |
FileNo = fileNo; |
377 |
|
|
378 |
|
__resetCRC(crc); |
379 |
|
|
380 |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
381 |
if (pCk3gix) { |
if (pCk3gix) { |
382 |
uint16_t iSampleGroup = pCk3gix->ReadInt16(); |
uint16_t iSampleGroup = pCk3gix->ReadInt16(); |
677 |
if (SampleCount > this->SamplesTotal) SampleCount = this->SamplesTotal; |
if (SampleCount > this->SamplesTotal) SampleCount = this->SamplesTotal; |
678 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
679 |
unsigned long allocationsize = (SampleCount + NullSamplesCount) * this->FrameSize; |
unsigned long allocationsize = (SampleCount + NullSamplesCount) * this->FrameSize; |
680 |
|
SetPos(0); // reset read position to begin of sample |
681 |
RAMCache.pStart = new int8_t[allocationsize]; |
RAMCache.pStart = new int8_t[allocationsize]; |
682 |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * this->FrameSize; |
RAMCache.Size = Read(RAMCache.pStart, SampleCount) * this->FrameSize; |
683 |
RAMCache.NullExtensionSize = allocationsize - RAMCache.Size; |
RAMCache.NullExtensionSize = allocationsize - RAMCache.Size; |
715 |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; |
716 |
RAMCache.pStart = NULL; |
RAMCache.pStart = NULL; |
717 |
RAMCache.Size = 0; |
RAMCache.Size = 0; |
718 |
|
RAMCache.NullExtensionSize = 0; |
719 |
} |
} |
720 |
|
|
721 |
/** @brief Resize sample. |
/** @brief Resize sample. |
910 |
} |
} |
911 |
|
|
912 |
// reverse the sample frames for backward playback |
// reverse the sample frames for backward playback |
913 |
SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); |
if (totalreadsamples > swapareastart) //FIXME: this if() is just a crash workaround for now (#102), but totalreadsamples <= swapareastart should never be the case, so there's probably still a bug above! |
914 |
|
SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); |
915 |
} |
} |
916 |
} while (samplestoread && readsamples); |
} while (samplestoread && readsamples); |
917 |
break; |
break; |
1217 |
// if this is the first write in this sample, reset the |
// if this is the first write in this sample, reset the |
1218 |
// checksum calculator |
// checksum calculator |
1219 |
if (pCkData->GetPos() == 0) { |
if (pCkData->GetPos() == 0) { |
1220 |
crc.reset(); |
__resetCRC(crc); |
1221 |
} |
} |
1222 |
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"); |
1223 |
unsigned long res; |
unsigned long res; |
1227 |
res = Channels == 2 ? pCkData->Write(pBuffer, SampleCount << 1, 2) >> 1 |
res = Channels == 2 ? pCkData->Write(pBuffer, SampleCount << 1, 2) >> 1 |
1228 |
: pCkData->Write(pBuffer, SampleCount, 2); |
: pCkData->Write(pBuffer, SampleCount, 2); |
1229 |
} |
} |
1230 |
crc.update((unsigned char *)pBuffer, SampleCount * FrameSize); |
__calculateCRC((unsigned char *)pBuffer, SampleCount * FrameSize, crc); |
1231 |
|
|
1232 |
// if this is the last write, update the checksum chunk in the |
// if this is the last write, update the checksum chunk in the |
1233 |
// file |
// file |
1234 |
if (pCkData->GetPos() == pCkData->GetSize()) { |
if (pCkData->GetPos() == pCkData->GetSize()) { |
1235 |
File* pFile = static_cast<File*>(GetParent()); |
File* pFile = static_cast<File*>(GetParent()); |
1236 |
pFile->SetSampleChecksum(this, crc.getValue()); |
pFile->SetSampleChecksum(this, __encodeCRC(crc)); |
1237 |
} |
} |
1238 |
return res; |
return res; |
1239 |
} |
} |
1561 |
VelocityResponseDepth, |
VelocityResponseDepth, |
1562 |
VelocityResponseCurveScaling); |
VelocityResponseCurveScaling); |
1563 |
|
|
1564 |
curve_type_t curveType = ReleaseVelocityResponseCurve; |
pVelocityReleaseTable = GetReleaseVelocityTable( |
1565 |
uint8_t depth = ReleaseVelocityResponseDepth; |
ReleaseVelocityResponseCurve, |
1566 |
|
ReleaseVelocityResponseDepth |
1567 |
// this models a strange behaviour or bug in GSt: two of the |
); |
1568 |
// velocity response curves for release time are not used even |
|
1569 |
// if specified, instead another curve is chosen. |
pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, |
1570 |
if ((curveType == curve_type_nonlinear && depth == 0) || |
VCFVelocityDynamicRange, |
1571 |
(curveType == curve_type_special && depth == 4)) { |
VCFVelocityScale, |
1572 |
curveType = curve_type_nonlinear; |
VCFCutoffController); |
|
depth = 3; |
|
|
} |
|
|
pVelocityReleaseTable = GetVelocityTable(curveType, depth, 0); |
|
|
|
|
|
curveType = VCFVelocityCurve; |
|
|
depth = VCFVelocityDynamicRange; |
|
|
|
|
|
// even stranger GSt: two of the velocity response curves for |
|
|
// filter cutoff are not used, instead another special curve |
|
|
// is chosen. This curve is not used anywhere else. |
|
|
if ((curveType == curve_type_nonlinear && depth == 0) || |
|
|
(curveType == curve_type_special && depth == 4)) { |
|
|
curveType = curve_type_special; |
|
|
depth = 5; |
|
|
} |
|
|
pVelocityCutoffTable = GetVelocityTable(curveType, depth, |
|
|
VCFCutoffController <= vcf_cutoff_ctrl_none2 ? VCFVelocityScale : 0); |
|
1573 |
|
|
1574 |
SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); |
SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); |
1575 |
VelocityTable = 0; |
VelocityTable = 0; |
1598 |
} |
} |
1599 |
|
|
1600 |
/** |
/** |
1601 |
|
* Updates the respective member variable and updates @c SampleAttenuation |
1602 |
|
* which depends on this value. |
1603 |
|
*/ |
1604 |
|
void DimensionRegion::SetGain(int32_t gain) { |
1605 |
|
DLS::Sampler::SetGain(gain); |
1606 |
|
SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); |
1607 |
|
} |
1608 |
|
|
1609 |
|
/** |
1610 |
* Apply dimension region settings to the respective RIFF chunks. You |
* Apply dimension region settings to the respective RIFF chunks. You |
1611 |
* have to call File::Save() to make changes persistent. |
* have to call File::Save() to make changes persistent. |
1612 |
* |
* |
1838 |
|
|
1839 |
const uint16_t eg3depth = (EG3Depth >= 0) ? EG3Depth |
const uint16_t eg3depth = (EG3Depth >= 0) ? EG3Depth |
1840 |
: uint16_t(((-EG3Depth) - 1) ^ 0xffff); /* binary complementary for negatives */ |
: uint16_t(((-EG3Depth) - 1) ^ 0xffff); /* binary complementary for negatives */ |
1841 |
pData[116] = eg3depth; |
store16(&pData[116], eg3depth); |
1842 |
|
|
1843 |
// next 2 bytes unknown |
// next 2 bytes unknown |
1844 |
|
|
1885 |
(VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */ |
(VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */ |
1886 |
pData[137] = vcfbreakpoint; |
pData[137] = vcfbreakpoint; |
1887 |
|
|
1888 |
const uint8_t vcfvelocity = VCFVelocityDynamicRange % 5 | |
const uint8_t vcfvelocity = VCFVelocityDynamicRange % 5 + |
1889 |
VCFVelocityCurve * 5; |
VCFVelocityCurve * 5; |
1890 |
pData[138] = vcfvelocity; |
pData[138] = vcfvelocity; |
1891 |
|
|
1897 |
} |
} |
1898 |
} |
} |
1899 |
|
|
1900 |
|
double* DimensionRegion::GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth) { |
1901 |
|
curve_type_t curveType = releaseVelocityResponseCurve; |
1902 |
|
uint8_t depth = releaseVelocityResponseDepth; |
1903 |
|
// this models a strange behaviour or bug in GSt: two of the |
1904 |
|
// velocity response curves for release time are not used even |
1905 |
|
// if specified, instead another curve is chosen. |
1906 |
|
if ((curveType == curve_type_nonlinear && depth == 0) || |
1907 |
|
(curveType == curve_type_special && depth == 4)) { |
1908 |
|
curveType = curve_type_nonlinear; |
1909 |
|
depth = 3; |
1910 |
|
} |
1911 |
|
return GetVelocityTable(curveType, depth, 0); |
1912 |
|
} |
1913 |
|
|
1914 |
|
double* DimensionRegion::GetCutoffVelocityTable(curve_type_t vcfVelocityCurve, |
1915 |
|
uint8_t vcfVelocityDynamicRange, |
1916 |
|
uint8_t vcfVelocityScale, |
1917 |
|
vcf_cutoff_ctrl_t vcfCutoffController) |
1918 |
|
{ |
1919 |
|
curve_type_t curveType = vcfVelocityCurve; |
1920 |
|
uint8_t depth = vcfVelocityDynamicRange; |
1921 |
|
// even stranger GSt: two of the velocity response curves for |
1922 |
|
// filter cutoff are not used, instead another special curve |
1923 |
|
// is chosen. This curve is not used anywhere else. |
1924 |
|
if ((curveType == curve_type_nonlinear && depth == 0) || |
1925 |
|
(curveType == curve_type_special && depth == 4)) { |
1926 |
|
curveType = curve_type_special; |
1927 |
|
depth = 5; |
1928 |
|
} |
1929 |
|
return GetVelocityTable(curveType, depth, |
1930 |
|
(vcfCutoffController <= vcf_cutoff_ctrl_none2) |
1931 |
|
? vcfVelocityScale : 0); |
1932 |
|
} |
1933 |
|
|
1934 |
// get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet |
// get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet |
1935 |
double* DimensionRegion::GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) |
double* DimensionRegion::GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) |
1936 |
{ |
{ |
2203 |
return pVelocityCutoffTable[MIDIKeyVelocity]; |
return pVelocityCutoffTable[MIDIKeyVelocity]; |
2204 |
} |
} |
2205 |
|
|
2206 |
|
/** |
2207 |
|
* Updates the respective member variable and the lookup table / cache |
2208 |
|
* that depends on this value. |
2209 |
|
*/ |
2210 |
|
void DimensionRegion::SetVelocityResponseCurve(curve_type_t curve) { |
2211 |
|
pVelocityAttenuationTable = |
2212 |
|
GetVelocityTable( |
2213 |
|
curve, VelocityResponseDepth, VelocityResponseCurveScaling |
2214 |
|
); |
2215 |
|
VelocityResponseCurve = curve; |
2216 |
|
} |
2217 |
|
|
2218 |
|
/** |
2219 |
|
* Updates the respective member variable and the lookup table / cache |
2220 |
|
* that depends on this value. |
2221 |
|
*/ |
2222 |
|
void DimensionRegion::SetVelocityResponseDepth(uint8_t depth) { |
2223 |
|
pVelocityAttenuationTable = |
2224 |
|
GetVelocityTable( |
2225 |
|
VelocityResponseCurve, depth, VelocityResponseCurveScaling |
2226 |
|
); |
2227 |
|
VelocityResponseDepth = depth; |
2228 |
|
} |
2229 |
|
|
2230 |
|
/** |
2231 |
|
* Updates the respective member variable and the lookup table / cache |
2232 |
|
* that depends on this value. |
2233 |
|
*/ |
2234 |
|
void DimensionRegion::SetVelocityResponseCurveScaling(uint8_t scaling) { |
2235 |
|
pVelocityAttenuationTable = |
2236 |
|
GetVelocityTable( |
2237 |
|
VelocityResponseCurve, VelocityResponseDepth, scaling |
2238 |
|
); |
2239 |
|
VelocityResponseCurveScaling = scaling; |
2240 |
|
} |
2241 |
|
|
2242 |
|
/** |
2243 |
|
* Updates the respective member variable and the lookup table / cache |
2244 |
|
* that depends on this value. |
2245 |
|
*/ |
2246 |
|
void DimensionRegion::SetReleaseVelocityResponseCurve(curve_type_t curve) { |
2247 |
|
pVelocityReleaseTable = GetReleaseVelocityTable(curve, ReleaseVelocityResponseDepth); |
2248 |
|
ReleaseVelocityResponseCurve = curve; |
2249 |
|
} |
2250 |
|
|
2251 |
|
/** |
2252 |
|
* Updates the respective member variable and the lookup table / cache |
2253 |
|
* that depends on this value. |
2254 |
|
*/ |
2255 |
|
void DimensionRegion::SetReleaseVelocityResponseDepth(uint8_t depth) { |
2256 |
|
pVelocityReleaseTable = GetReleaseVelocityTable(ReleaseVelocityResponseCurve, depth); |
2257 |
|
ReleaseVelocityResponseDepth = depth; |
2258 |
|
} |
2259 |
|
|
2260 |
|
/** |
2261 |
|
* Updates the respective member variable and the lookup table / cache |
2262 |
|
* that depends on this value. |
2263 |
|
*/ |
2264 |
|
void DimensionRegion::SetVCFCutoffController(vcf_cutoff_ctrl_t controller) { |
2265 |
|
pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, VCFVelocityDynamicRange, VCFVelocityScale, controller); |
2266 |
|
VCFCutoffController = controller; |
2267 |
|
} |
2268 |
|
|
2269 |
|
/** |
2270 |
|
* Updates the respective member variable and the lookup table / cache |
2271 |
|
* that depends on this value. |
2272 |
|
*/ |
2273 |
|
void DimensionRegion::SetVCFVelocityCurve(curve_type_t curve) { |
2274 |
|
pVelocityCutoffTable = GetCutoffVelocityTable(curve, VCFVelocityDynamicRange, VCFVelocityScale, VCFCutoffController); |
2275 |
|
VCFVelocityCurve = curve; |
2276 |
|
} |
2277 |
|
|
2278 |
|
/** |
2279 |
|
* Updates the respective member variable and the lookup table / cache |
2280 |
|
* that depends on this value. |
2281 |
|
*/ |
2282 |
|
void DimensionRegion::SetVCFVelocityDynamicRange(uint8_t range) { |
2283 |
|
pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, range, VCFVelocityScale, VCFCutoffController); |
2284 |
|
VCFVelocityDynamicRange = range; |
2285 |
|
} |
2286 |
|
|
2287 |
|
/** |
2288 |
|
* Updates the respective member variable and the lookup table / cache |
2289 |
|
* that depends on this value. |
2290 |
|
*/ |
2291 |
|
void DimensionRegion::SetVCFVelocityScale(uint8_t scaling) { |
2292 |
|
pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, VCFVelocityDynamicRange, scaling, VCFCutoffController); |
2293 |
|
VCFVelocityScale = scaling; |
2294 |
|
} |
2295 |
|
|
2296 |
double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
2297 |
|
|
2298 |
// line-segment approximations of the 15 velocity curves |
// line-segment approximations of the 15 velocity curves |
2376 |
|
|
2377 |
// Actual Loading |
// Actual Loading |
2378 |
|
|
2379 |
|
if (!file->GetAutoLoad()) return; |
2380 |
|
|
2381 |
LoadDimensionRegions(rgnList); |
LoadDimensionRegions(rgnList); |
2382 |
|
|
2383 |
RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK); |
RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK); |
2421 |
else |
else |
2422 |
_3lnk->SetPos(44); |
_3lnk->SetPos(44); |
2423 |
|
|
2424 |
// load sample references |
// load sample references (if auto loading is enabled) |
2425 |
for (uint i = 0; i < DimensionRegions; i++) { |
if (file->GetAutoLoad()) { |
2426 |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
for (uint i = 0; i < DimensionRegions; i++) { |
2427 |
if (file->pWavePoolTable) pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
2428 |
|
if (file->pWavePoolTable) pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
2429 |
|
} |
2430 |
|
GetSample(); // load global region sample reference |
2431 |
} |
} |
|
GetSample(); // load global region sample reference |
|
2432 |
} else { |
} else { |
2433 |
DimensionRegions = 0; |
DimensionRegions = 0; |
2434 |
for (int i = 0 ; i < 8 ; i++) { |
for (int i = 0 ; i < 8 ; i++) { |
2538 |
} |
} |
2539 |
} |
} |
2540 |
|
|
2541 |
|
void Region::SetKeyRange(uint16_t Low, uint16_t High) { |
2542 |
|
// update KeyRange struct and make sure regions are in correct order |
2543 |
|
DLS::Region::SetKeyRange(Low, High); |
2544 |
|
// update Region key table for fast lookup |
2545 |
|
((gig::Instrument*)GetParent())->UpdateRegionKeyTable(); |
2546 |
|
} |
2547 |
|
|
2548 |
void Region::UpdateVelocityTable() { |
void Region::UpdateVelocityTable() { |
2549 |
// get velocity dimension's index |
// get velocity dimension's index |
2550 |
int veldim = -1; |
int veldim = -1; |
2927 |
} |
} |
2928 |
|
|
2929 |
|
|
2930 |
|
// *************** MidiRule *************** |
2931 |
|
// * |
2932 |
|
|
2933 |
|
MidiRuleCtrlTrigger::MidiRuleCtrlTrigger(RIFF::Chunk* _3ewg) { |
2934 |
|
_3ewg->SetPos(36); |
2935 |
|
Triggers = _3ewg->ReadUint8(); |
2936 |
|
_3ewg->SetPos(40); |
2937 |
|
ControllerNumber = _3ewg->ReadUint8(); |
2938 |
|
_3ewg->SetPos(46); |
2939 |
|
for (int i = 0 ; i < Triggers ; i++) { |
2940 |
|
pTriggers[i].TriggerPoint = _3ewg->ReadUint8(); |
2941 |
|
pTriggers[i].Descending = _3ewg->ReadUint8(); |
2942 |
|
pTriggers[i].VelSensitivity = _3ewg->ReadUint8(); |
2943 |
|
pTriggers[i].Key = _3ewg->ReadUint8(); |
2944 |
|
pTriggers[i].NoteOff = _3ewg->ReadUint8(); |
2945 |
|
pTriggers[i].Velocity = _3ewg->ReadUint8(); |
2946 |
|
pTriggers[i].OverridePedal = _3ewg->ReadUint8(); |
2947 |
|
_3ewg->ReadUint8(); |
2948 |
|
} |
2949 |
|
} |
2950 |
|
|
2951 |
|
|
2952 |
// *************** Instrument *************** |
// *************** Instrument *************** |
2953 |
// * |
// * |
2954 |
|
|
2955 |
Instrument::Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress) : DLS::Instrument((DLS::File*)pFile, insList) { |
Instrument::Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress) : DLS::Instrument((DLS::File*)pFile, insList) { |
2956 |
static const DLS::Info::FixedStringLength fixedStringLengths[] = { |
static const DLS::Info::string_length_t fixedStringLengths[] = { |
2957 |
{ CHUNK_ID_INAM, 64 }, |
{ CHUNK_ID_INAM, 64 }, |
2958 |
{ CHUNK_ID_ISFT, 12 }, |
{ CHUNK_ID_ISFT, 12 }, |
2959 |
{ 0, 0 } |
{ 0, 0 } |
2960 |
}; |
}; |
2961 |
pInfo->FixedStringLengths = fixedStringLengths; |
pInfo->SetFixedStringLengths(fixedStringLengths); |
2962 |
|
|
2963 |
// Initialization |
// Initialization |
2964 |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
2969 |
PianoReleaseMode = false; |
PianoReleaseMode = false; |
2970 |
DimensionKeyRange.low = 0; |
DimensionKeyRange.low = 0; |
2971 |
DimensionKeyRange.high = 0; |
DimensionKeyRange.high = 0; |
2972 |
|
pMidiRules = new MidiRule*[3]; |
2973 |
|
pMidiRules[0] = NULL; |
2974 |
|
|
2975 |
// Loading |
// Loading |
2976 |
RIFF::List* lart = insList->GetSubList(LIST_TYPE_LART); |
RIFF::List* lart = insList->GetSubList(LIST_TYPE_LART); |
2985 |
PianoReleaseMode = dimkeystart & 0x01; |
PianoReleaseMode = dimkeystart & 0x01; |
2986 |
DimensionKeyRange.low = dimkeystart >> 1; |
DimensionKeyRange.low = dimkeystart >> 1; |
2987 |
DimensionKeyRange.high = _3ewg->ReadUint8(); |
DimensionKeyRange.high = _3ewg->ReadUint8(); |
2988 |
|
|
2989 |
|
if (_3ewg->GetSize() > 32) { |
2990 |
|
// read MIDI rules |
2991 |
|
int i = 0; |
2992 |
|
_3ewg->SetPos(32); |
2993 |
|
uint8_t id1 = _3ewg->ReadUint8(); |
2994 |
|
uint8_t id2 = _3ewg->ReadUint8(); |
2995 |
|
|
2996 |
|
if (id1 == 4 && id2 == 16) { |
2997 |
|
pMidiRules[i++] = new MidiRuleCtrlTrigger(_3ewg); |
2998 |
|
} |
2999 |
|
//TODO: all the other types of rules |
3000 |
|
|
3001 |
|
pMidiRules[i] = NULL; |
3002 |
|
} |
3003 |
} |
} |
3004 |
} |
} |
3005 |
|
|
3006 |
if (!pRegions) pRegions = new RegionList; |
if (pFile->GetAutoLoad()) { |
3007 |
RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN); |
if (!pRegions) pRegions = new RegionList; |
3008 |
if (lrgn) { |
RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN); |
3009 |
RIFF::List* rgn = lrgn->GetFirstSubList(); |
if (lrgn) { |
3010 |
while (rgn) { |
RIFF::List* rgn = lrgn->GetFirstSubList(); |
3011 |
if (rgn->GetListType() == LIST_TYPE_RGN) { |
while (rgn) { |
3012 |
__notify_progress(pProgress, (float) pRegions->size() / (float) Regions); |
if (rgn->GetListType() == LIST_TYPE_RGN) { |
3013 |
pRegions->push_back(new Region(this, rgn)); |
__notify_progress(pProgress, (float) pRegions->size() / (float) Regions); |
3014 |
|
pRegions->push_back(new Region(this, rgn)); |
3015 |
|
} |
3016 |
|
rgn = lrgn->GetNextSubList(); |
3017 |
} |
} |
3018 |
rgn = lrgn->GetNextSubList(); |
// Creating Region Key Table for fast lookup |
3019 |
|
UpdateRegionKeyTable(); |
3020 |
} |
} |
|
// Creating Region Key Table for fast lookup |
|
|
UpdateRegionKeyTable(); |
|
3021 |
} |
} |
3022 |
|
|
3023 |
__notify_progress(pProgress, 1.0f); // notify done |
__notify_progress(pProgress, 1.0f); // notify done |
3024 |
} |
} |
3025 |
|
|
3026 |
void Instrument::UpdateRegionKeyTable() { |
void Instrument::UpdateRegionKeyTable() { |
3027 |
|
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
3028 |
RegionList::iterator iter = pRegions->begin(); |
RegionList::iterator iter = pRegions->begin(); |
3029 |
RegionList::iterator end = pRegions->end(); |
RegionList::iterator end = pRegions->end(); |
3030 |
for (; iter != end; ++iter) { |
for (; iter != end; ++iter) { |
3036 |
} |
} |
3037 |
|
|
3038 |
Instrument::~Instrument() { |
Instrument::~Instrument() { |
3039 |
|
for (int i = 0 ; pMidiRules[i] ; i++) { |
3040 |
|
delete pMidiRules[i]; |
3041 |
|
} |
3042 |
|
delete[] pMidiRules; |
3043 |
} |
} |
3044 |
|
|
3045 |
/** |
/** |
3096 |
* there is no Region defined for the given \a Key |
* there is no Region defined for the given \a Key |
3097 |
*/ |
*/ |
3098 |
Region* Instrument::GetRegion(unsigned int Key) { |
Region* Instrument::GetRegion(unsigned int Key) { |
3099 |
if (!pRegions || !pRegions->size() || Key > 127) return NULL; |
if (!pRegions || pRegions->empty() || Key > 127) return NULL; |
3100 |
return RegionKeyTable[Key]; |
return RegionKeyTable[Key]; |
3101 |
|
|
3102 |
/*for (int i = 0; i < Regions; i++) { |
/*for (int i = 0; i < Regions; i++) { |
3154 |
UpdateRegionKeyTable(); |
UpdateRegionKeyTable(); |
3155 |
} |
} |
3156 |
|
|
3157 |
|
/** |
3158 |
|
* Returns a MIDI rule of the instrument. |
3159 |
|
* |
3160 |
|
* The list of MIDI rules, at least in gig v3, always contains at |
3161 |
|
* most two rules. The second rule can only be the DEF filter |
3162 |
|
* (which currently isn't supported by libgig). |
3163 |
|
* |
3164 |
|
* @param i - MIDI rule number |
3165 |
|
* @returns pointer address to MIDI rule number i or NULL if there is none |
3166 |
|
*/ |
3167 |
|
MidiRule* Instrument::GetMidiRule(int i) { |
3168 |
|
return pMidiRules[i]; |
3169 |
|
} |
3170 |
|
|
3171 |
|
|
3172 |
// *************** Group *************** |
// *************** Group *************** |
3292 |
// *************** File *************** |
// *************** File *************** |
3293 |
// * |
// * |
3294 |
|
|
3295 |
// File version 2.0, 1998-06-28 |
/// Reflects Gigasampler file format version 2.0 (1998-06-28). |
3296 |
const DLS::version_t File::VERSION_2 = { |
const DLS::version_t File::VERSION_2 = { |
3297 |
0, 2, 19980628 & 0xffff, 19980628 >> 16 |
0, 2, 19980628 & 0xffff, 19980628 >> 16 |
3298 |
}; |
}; |
3299 |
|
|
3300 |
// File version 3.0, 2003-03-31 |
/// Reflects Gigasampler file format version 3.0 (2003-03-31). |
3301 |
const DLS::version_t File::VERSION_3 = { |
const DLS::version_t File::VERSION_3 = { |
3302 |
0, 3, 20030331 & 0xffff, 20030331 >> 16 |
0, 3, 20030331 & 0xffff, 20030331 >> 16 |
3303 |
}; |
}; |
3304 |
|
|
3305 |
const DLS::Info::FixedStringLength File::FixedStringLengths[] = { |
static const DLS::Info::string_length_t _FileFixedStringLengths[] = { |
3306 |
{ CHUNK_ID_IARL, 256 }, |
{ CHUNK_ID_IARL, 256 }, |
3307 |
{ CHUNK_ID_IART, 128 }, |
{ CHUNK_ID_IART, 128 }, |
3308 |
{ CHUNK_ID_ICMS, 128 }, |
{ CHUNK_ID_ICMS, 128 }, |
3324 |
}; |
}; |
3325 |
|
|
3326 |
File::File() : DLS::File() { |
File::File() : DLS::File() { |
3327 |
|
bAutoLoad = true; |
3328 |
*pVersion = VERSION_3; |
*pVersion = VERSION_3; |
3329 |
pGroups = NULL; |
pGroups = NULL; |
3330 |
pInfo->FixedStringLengths = FixedStringLengths; |
pInfo->SetFixedStringLengths(_FileFixedStringLengths); |
3331 |
pInfo->ArchivalLocation = String(256, ' '); |
pInfo->ArchivalLocation = String(256, ' '); |
3332 |
|
|
3333 |
// add some mandatory chunks to get the file chunks in right |
// add some mandatory chunks to get the file chunks in right |
3340 |
} |
} |
3341 |
|
|
3342 |
File::File(RIFF::File* pRIFF) : DLS::File(pRIFF) { |
File::File(RIFF::File* pRIFF) : DLS::File(pRIFF) { |
3343 |
|
bAutoLoad = true; |
3344 |
pGroups = NULL; |
pGroups = NULL; |
3345 |
pInfo->FixedStringLengths = FixedStringLengths; |
pInfo->SetFixedStringLengths(_FileFixedStringLengths); |
3346 |
} |
} |
3347 |
|
|
3348 |
File::~File() { |
File::~File() { |
3410 |
pSamples->erase(iter); |
pSamples->erase(iter); |
3411 |
delete pSample; |
delete pSample; |
3412 |
|
|
3413 |
|
SampleList::iterator tmp = SamplesIterator; |
3414 |
// remove all references to the sample |
// remove all references to the sample |
3415 |
for (Instrument* instrument = GetFirstInstrument() ; instrument ; |
for (Instrument* instrument = GetFirstInstrument() ; instrument ; |
3416 |
instrument = GetNextInstrument()) { |
instrument = GetNextInstrument()) { |
3425 |
} |
} |
3426 |
} |
} |
3427 |
} |
} |
3428 |
|
SamplesIterator = tmp; // restore iterator |
3429 |
} |
} |
3430 |
|
|
3431 |
void File::LoadSamples() { |
void File::LoadSamples() { |
3516 |
progress_t subprogress; |
progress_t subprogress; |
3517 |
__divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask |
__divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask |
3518 |
__notify_progress(&subprogress, 0.0f); |
__notify_progress(&subprogress, 0.0f); |
3519 |
GetFirstSample(&subprogress); // now force all samples to be loaded |
if (GetAutoLoad()) |
3520 |
|
GetFirstSample(&subprogress); // now force all samples to be loaded |
3521 |
__notify_progress(&subprogress, 1.0f); |
__notify_progress(&subprogress, 1.0f); |
3522 |
|
|
3523 |
// instrument loading subtask |
// instrument loading subtask |
3924 |
} |
} |
3925 |
} |
} |
3926 |
|
|
3927 |
|
/** |
3928 |
|
* Enable / disable automatic loading. By default this properyt is |
3929 |
|
* enabled and all informations are loaded automatically. However |
3930 |
|
* loading all Regions, DimensionRegions and especially samples might |
3931 |
|
* take a long time for large .gig files, and sometimes one might only |
3932 |
|
* be interested in retrieving very superficial informations like the |
3933 |
|
* amount of instruments and their names. In this case one might disable |
3934 |
|
* automatic loading to avoid very slow response times. |
3935 |
|
* |
3936 |
|
* @e CAUTION: by disabling this property many pointers (i.e. sample |
3937 |
|
* references) and informations will have invalid or even undefined |
3938 |
|
* data! This feature is currently only intended for retrieving very |
3939 |
|
* superficial informations in a very fast way. Don't use it to retrieve |
3940 |
|
* details like synthesis informations or even to modify .gig files! |
3941 |
|
*/ |
3942 |
|
void File::SetAutoLoad(bool b) { |
3943 |
|
bAutoLoad = b; |
3944 |
|
} |
3945 |
|
|
3946 |
|
/** |
3947 |
|
* Returns whether automatic loading is enabled. |
3948 |
|
* @see SetAutoLoad() |
3949 |
|
*/ |
3950 |
|
bool File::GetAutoLoad() { |
3951 |
|
return bAutoLoad; |
3952 |
|
} |
3953 |
|
|
3954 |
|
|
3955 |
|
|
3956 |
// *************** Exception *************** |
// *************** Exception *************** |