25 |
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26 |
#include <iostream> |
#include <iostream> |
27 |
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28 |
namespace gig { namespace { |
namespace gig { |
29 |
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30 |
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// *************** progress_t *************** |
31 |
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// * |
32 |
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33 |
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progress_t::progress_t() { |
34 |
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callback = NULL; |
35 |
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custom = NULL; |
36 |
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__range_min = 0.0f; |
37 |
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__range_max = 1.0f; |
38 |
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} |
39 |
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40 |
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// private helper function to convert progress of a subprocess into the global progress |
41 |
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static void __notify_progress(progress_t* pProgress, float subprogress) { |
42 |
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if (pProgress && pProgress->callback) { |
43 |
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const float totalrange = pProgress->__range_max - pProgress->__range_min; |
44 |
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const float totalprogress = pProgress->__range_min + subprogress * totalrange; |
45 |
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pProgress->factor = totalprogress; |
46 |
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pProgress->callback(pProgress); // now actually notify about the progress |
47 |
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} |
48 |
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} |
49 |
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50 |
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// private helper function to divide a progress into subprogresses |
51 |
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static void __divide_progress(progress_t* pParentProgress, progress_t* pSubProgress, float totalTasks, float currentTask) { |
52 |
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if (pParentProgress && pParentProgress->callback) { |
53 |
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const float totalrange = pParentProgress->__range_max - pParentProgress->__range_min; |
54 |
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pSubProgress->callback = pParentProgress->callback; |
55 |
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pSubProgress->custom = pParentProgress->custom; |
56 |
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pSubProgress->__range_min = pParentProgress->__range_min + totalrange * currentTask / totalTasks; |
57 |
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pSubProgress->__range_max = pSubProgress->__range_min + totalrange / totalTasks; |
58 |
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} |
59 |
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} |
60 |
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61 |
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62 |
// *************** Internal functions for sample decopmression *************** |
// *************** Internal functions for sample decopmression *************** |
63 |
// * |
// * |
64 |
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65 |
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namespace { |
66 |
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|
67 |
inline int get12lo(const unsigned char* pSrc) |
inline int get12lo(const unsigned char* pSrc) |
68 |
{ |
{ |
69 |
const int x = pSrc[0] | (pSrc[1] & 0x0f) << 8; |
const int x = pSrc[0] | (pSrc[1] & 0x0f) << 8; |
128 |
void Decompress24(int compressionmode, const unsigned char* params, |
void Decompress24(int compressionmode, const unsigned char* params, |
129 |
int dstStep, const unsigned char* pSrc, int16_t* pDst, |
int dstStep, const unsigned char* pSrc, int16_t* pDst, |
130 |
unsigned long currentframeoffset, |
unsigned long currentframeoffset, |
131 |
unsigned long copysamples) |
unsigned long copysamples, int truncatedBits) |
132 |
{ |
{ |
133 |
// Note: The 24 bits are truncated to 16 bits for now. |
// Note: The 24 bits are truncated to 16 bits for now. |
134 |
|
|
140 |
// |
// |
141 |
// Strange thing #2: The formula in SKIP_ONE gives values for |
// Strange thing #2: The formula in SKIP_ONE gives values for |
142 |
// y that are twice as high as they should be. That's why |
// y that are twice as high as they should be. That's why |
143 |
// COPY_ONE shifts 9 steps instead of 8, and also why y is |
// COPY_ONE shifts an extra step, and also why y is |
144 |
// initialized with a sum instead of a mean value. |
// initialized with a sum instead of a mean value. |
145 |
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|
146 |
int y, dy, ddy; |
int y, dy, ddy; |
147 |
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|
148 |
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const int shift = 8 - truncatedBits; |
149 |
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const int shift1 = shift + 1; |
150 |
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|
151 |
#define GET_PARAMS(params) \ |
#define GET_PARAMS(params) \ |
152 |
y = (get24(params) + get24((params) + 3)); \ |
y = (get24(params) + get24((params) + 3)); \ |
153 |
dy = get24((params) + 6); \ |
dy = get24((params) + 6); \ |
160 |
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|
161 |
#define COPY_ONE(x) \ |
#define COPY_ONE(x) \ |
162 |
SKIP_ONE(x); \ |
SKIP_ONE(x); \ |
163 |
*pDst = y >> 9; \ |
*pDst = y >> shift1; \ |
164 |
pDst += dstStep |
pDst += dstStep |
165 |
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|
166 |
switch (compressionmode) { |
switch (compressionmode) { |
167 |
case 2: // 24 bit uncompressed |
case 2: // 24 bit uncompressed |
168 |
pSrc += currentframeoffset * 3; |
pSrc += currentframeoffset * 3; |
169 |
while (copysamples) { |
while (copysamples) { |
170 |
*pDst = get24(pSrc) >> 8; |
*pDst = get24(pSrc) >> shift; |
171 |
pDst += dstStep; |
pDst += dstStep; |
172 |
pSrc += 3; |
pSrc += 3; |
173 |
copysamples--; |
copysamples--; |
276 |
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|
277 |
if (BitDepth > 24) throw gig::Exception("Only samples up to 24 bit supported"); |
if (BitDepth > 24) throw gig::Exception("Only samples up to 24 bit supported"); |
278 |
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|
279 |
Compressed = (waveList->GetSubChunk(CHUNK_ID_EWAV)); |
RIFF::Chunk* ewav = waveList->GetSubChunk(CHUNK_ID_EWAV); |
280 |
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Compressed = ewav; |
281 |
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Dithered = false; |
282 |
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TruncatedBits = 0; |
283 |
if (Compressed) { |
if (Compressed) { |
284 |
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uint32_t version = ewav->ReadInt32(); |
285 |
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if (version == 3 && BitDepth == 24) { |
286 |
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Dithered = ewav->ReadInt32(); |
287 |
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ewav->SetPos(Channels == 2 ? 84 : 64); |
288 |
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TruncatedBits = ewav->ReadInt32(); |
289 |
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} |
290 |
ScanCompressedSample(); |
ScanCompressedSample(); |
291 |
} |
} |
292 |
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|
295 |
InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE]; |
InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE]; |
296 |
InternalDecompressionBuffer.Size = INITIAL_SAMPLE_BUFFER_SIZE; |
InternalDecompressionBuffer.Size = INITIAL_SAMPLE_BUFFER_SIZE; |
297 |
} |
} |
298 |
FrameOffset = 0; // just for streaming compressed samples |
FrameOffset = 0; // just for streaming compressed samples |
299 |
|
|
300 |
LoopSize = LoopEnd - LoopStart; |
LoopSize = LoopEnd - LoopStart; |
301 |
} |
} |
892 |
const unsigned char* const param_r = pSrc; |
const unsigned char* const param_r = pSrc; |
893 |
if (mode_r != 2) pSrc += 12; |
if (mode_r != 2) pSrc += 12; |
894 |
|
|
895 |
Decompress24(mode_l, param_l, 2, pSrc, pDst, skipsamples, copysamples); |
Decompress24(mode_l, param_l, 2, pSrc, pDst, |
896 |
|
skipsamples, copysamples, TruncatedBits); |
897 |
Decompress24(mode_r, param_r, 2, pSrc + rightChannelOffset, pDst + 1, |
Decompress24(mode_r, param_r, 2, pSrc + rightChannelOffset, pDst + 1, |
898 |
skipsamples, copysamples); |
skipsamples, copysamples, TruncatedBits); |
899 |
pDst += copysamples << 1; |
pDst += copysamples << 1; |
900 |
} |
} |
901 |
else { // Mono |
else { // Mono |
902 |
Decompress24(mode_l, param_l, 1, pSrc, pDst, skipsamples, copysamples); |
Decompress24(mode_l, param_l, 1, pSrc, pDst, |
903 |
|
skipsamples, copysamples, TruncatedBits); |
904 |
pDst += copysamples; |
pDst += copysamples; |
905 |
} |
} |
906 |
} |
} |
1161 |
VCFType = vcf_type_lowpassturbo; |
VCFType = vcf_type_lowpassturbo; |
1162 |
} |
} |
1163 |
|
|
1164 |
// get the corresponding velocity->volume table from the table map or create & calculate that table if it doesn't exist yet |
pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve, |
1165 |
uint32_t tableKey = (VelocityResponseCurve<<16) | (VelocityResponseDepth<<8) | VelocityResponseCurveScaling; |
VelocityResponseDepth, |
1166 |
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VelocityResponseCurveScaling); |
1167 |
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|
1168 |
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curve_type_t curveType = ReleaseVelocityResponseCurve; |
1169 |
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uint8_t depth = ReleaseVelocityResponseDepth; |
1170 |
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|
1171 |
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// this models a strange behaviour or bug in GSt: two of the |
1172 |
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// velocity response curves for release time are not used even |
1173 |
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// if specified, instead another curve is chosen. |
1174 |
|
|
1175 |
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if ((curveType == curve_type_nonlinear && depth == 0) || |
1176 |
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(curveType == curve_type_special && depth == 4)) { |
1177 |
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curveType = curve_type_nonlinear; |
1178 |
|
depth = 3; |
1179 |
|
} |
1180 |
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pVelocityReleaseTable = GetVelocityTable(curveType, depth, 0); |
1181 |
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|
1182 |
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SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); |
1183 |
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} |
1184 |
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|
1185 |
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// get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet |
1186 |
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double* DimensionRegion::GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) |
1187 |
|
{ |
1188 |
|
double* table; |
1189 |
|
uint32_t tableKey = (curveType<<16) | (depth<<8) | scaling; |
1190 |
if (pVelocityTables->count(tableKey)) { // if key exists |
if (pVelocityTables->count(tableKey)) { // if key exists |
1191 |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
table = (*pVelocityTables)[tableKey]; |
1192 |
} |
} |
1193 |
else { |
else { |
1194 |
pVelocityAttenuationTable = |
table = CreateVelocityTable(curveType, depth, scaling); |
1195 |
CreateVelocityTable(VelocityResponseCurve, |
(*pVelocityTables)[tableKey] = table; // put the new table into the tables map |
|
VelocityResponseDepth, |
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VelocityResponseCurveScaling); |
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(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
|
1196 |
} |
} |
1197 |
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return table; |
1198 |
} |
} |
1199 |
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|
1200 |
leverage_ctrl_t DimensionRegion::DecodeLeverageController(_lev_ctrl_t EncodedController) { |
leverage_ctrl_t DimensionRegion::DecodeLeverageController(_lev_ctrl_t EncodedController) { |
1345 |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
1346 |
} |
} |
1347 |
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|
1348 |
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double DimensionRegion::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
1349 |
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return pVelocityReleaseTable[MIDIKeyVelocity]; |
1350 |
|
} |
1351 |
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|
1352 |
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) { |
1353 |
|
|
1354 |
// line-segment approximations of the 15 velocity curves |
// line-segment approximations of the 15 velocity curves |
1450 |
pDimensionDefinitions[i].zones = 0x01 << bits; // = pow(2,bits) |
pDimensionDefinitions[i].zones = 0x01 << bits; // = pow(2,bits) |
1451 |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
1452 |
dimension == dimension_samplechannel || |
dimension == dimension_samplechannel || |
1453 |
dimension == dimension_releasetrigger) ? split_type_bit |
dimension == dimension_releasetrigger || |
1454 |
: split_type_normal; |
dimension == dimension_roundrobin || |
1455 |
|
dimension == dimension_random) ? split_type_bit |
1456 |
|
: split_type_normal; |
1457 |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
1458 |
pDimensionDefinitions[i].zone_size = |
pDimensionDefinitions[i].zone_size = |
1459 |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128 / pDimensionDefinitions[i].zones |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128 / pDimensionDefinitions[i].zones |
1609 |
else return static_cast<gig::Sample*>(pSample = GetSampleFromWavePool(WavePoolTableIndex)); |
else return static_cast<gig::Sample*>(pSample = GetSampleFromWavePool(WavePoolTableIndex)); |
1610 |
} |
} |
1611 |
|
|
1612 |
Sample* Region::GetSampleFromWavePool(unsigned int WavePoolTableIndex) { |
Sample* Region::GetSampleFromWavePool(unsigned int WavePoolTableIndex, progress_t* pProgress) { |
1613 |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
if ((int32_t)WavePoolTableIndex == -1) return NULL; |
1614 |
File* file = (File*) GetParent()->GetParent(); |
File* file = (File*) GetParent()->GetParent(); |
1615 |
unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
unsigned long soughtoffset = file->pWavePoolTable[WavePoolTableIndex]; |
1616 |
Sample* sample = file->GetFirstSample(); |
Sample* sample = file->GetFirstSample(pProgress); |
1617 |
while (sample) { |
while (sample) { |
1618 |
if (sample->ulWavePoolOffset == soughtoffset) return static_cast<gig::Sample*>(pSample = sample); |
if (sample->ulWavePoolOffset == soughtoffset) return static_cast<gig::Sample*>(pSample = sample); |
1619 |
sample = file->GetNextSample(); |
sample = file->GetNextSample(); |
1626 |
// *************** Instrument *************** |
// *************** Instrument *************** |
1627 |
// * |
// * |
1628 |
|
|
1629 |
Instrument::Instrument(File* pFile, RIFF::List* insList) : DLS::Instrument((DLS::File*)pFile, insList) { |
Instrument::Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress) : DLS::Instrument((DLS::File*)pFile, insList) { |
1630 |
// Initialization |
// Initialization |
1631 |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; |
1632 |
RegionIndex = -1; |
RegionIndex = -1; |
1657 |
unsigned int iRegion = 0; |
unsigned int iRegion = 0; |
1658 |
while (rgn) { |
while (rgn) { |
1659 |
if (rgn->GetListType() == LIST_TYPE_RGN) { |
if (rgn->GetListType() == LIST_TYPE_RGN) { |
1660 |
|
__notify_progress(pProgress, (float) iRegion / (float) Regions); |
1661 |
pRegions[iRegion] = new Region(this, rgn); |
pRegions[iRegion] = new Region(this, rgn); |
1662 |
iRegion++; |
iRegion++; |
1663 |
} |
} |
1670 |
RegionKeyTable[iKey] = pRegions[iReg]; |
RegionKeyTable[iKey] = pRegions[iReg]; |
1671 |
} |
} |
1672 |
} |
} |
1673 |
|
|
1674 |
|
__notify_progress(pProgress, 1.0f); // notify done |
1675 |
} |
} |
1676 |
|
|
1677 |
Instrument::~Instrument() { |
Instrument::~Instrument() { |
1760 |
} |
} |
1761 |
} |
} |
1762 |
|
|
1763 |
Sample* File::GetFirstSample() { |
Sample* File::GetFirstSample(progress_t* pProgress) { |
1764 |
if (!pSamples) LoadSamples(); |
if (!pSamples) LoadSamples(pProgress); |
1765 |
if (!pSamples) return NULL; |
if (!pSamples) return NULL; |
1766 |
SamplesIterator = pSamples->begin(); |
SamplesIterator = pSamples->begin(); |
1767 |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
1773 |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
return static_cast<gig::Sample*>( (SamplesIterator != pSamples->end()) ? *SamplesIterator : NULL ); |
1774 |
} |
} |
1775 |
|
|
1776 |
void File::LoadSamples() { |
void File::LoadSamples(progress_t* pProgress) { |
1777 |
RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL); |
RIFF::List* wvpl = pRIFF->GetSubList(LIST_TYPE_WVPL); |
1778 |
if (wvpl) { |
if (wvpl) { |
1779 |
|
// just for progress calculation |
1780 |
|
int iSampleIndex = 0; |
1781 |
|
int iTotalSamples = wvpl->CountSubLists(LIST_TYPE_WAVE); |
1782 |
|
|
1783 |
unsigned long wvplFileOffset = wvpl->GetFilePos(); |
unsigned long wvplFileOffset = wvpl->GetFilePos(); |
1784 |
RIFF::List* wave = wvpl->GetFirstSubList(); |
RIFF::List* wave = wvpl->GetFirstSubList(); |
1785 |
while (wave) { |
while (wave) { |
1786 |
if (wave->GetListType() == LIST_TYPE_WAVE) { |
if (wave->GetListType() == LIST_TYPE_WAVE) { |
1787 |
|
// notify current progress |
1788 |
|
const float subprogress = (float) iSampleIndex / (float) iTotalSamples; |
1789 |
|
__notify_progress(pProgress, subprogress); |
1790 |
|
|
1791 |
if (!pSamples) pSamples = new SampleList; |
if (!pSamples) pSamples = new SampleList; |
1792 |
unsigned long waveFileOffset = wave->GetFilePos(); |
unsigned long waveFileOffset = wave->GetFilePos(); |
1793 |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset)); |
pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset)); |
1794 |
|
|
1795 |
|
iSampleIndex++; |
1796 |
} |
} |
1797 |
wave = wvpl->GetNextSubList(); |
wave = wvpl->GetNextSubList(); |
1798 |
} |
} |
1799 |
|
__notify_progress(pProgress, 1.0); // notify done |
1800 |
} |
} |
1801 |
else throw gig::Exception("Mandatory <wvpl> chunk not found."); |
else throw gig::Exception("Mandatory <wvpl> chunk not found."); |
1802 |
} |
} |
1817 |
/** |
/** |
1818 |
* Returns the instrument with the given index. |
* Returns the instrument with the given index. |
1819 |
* |
* |
1820 |
|
* @param index - number of the sought instrument (0..n) |
1821 |
|
* @param pProgress - optional: callback function for progress notification |
1822 |
* @returns sought instrument or NULL if there's no such instrument |
* @returns sought instrument or NULL if there's no such instrument |
1823 |
*/ |
*/ |
1824 |
Instrument* File::GetInstrument(uint index) { |
Instrument* File::GetInstrument(uint index, progress_t* pProgress) { |
1825 |
if (!pInstruments) LoadInstruments(); |
if (!pInstruments) { |
1826 |
|
// TODO: hack - we simply load ALL samples here, it would have been done in the Region constructor anyway (ATM) |
1827 |
|
|
1828 |
|
// sample loading subtask |
1829 |
|
progress_t subprogress; |
1830 |
|
__divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask |
1831 |
|
__notify_progress(&subprogress, 0.0f); |
1832 |
|
GetFirstSample(&subprogress); // now force all samples to be loaded |
1833 |
|
__notify_progress(&subprogress, 1.0f); |
1834 |
|
|
1835 |
|
// instrument loading subtask |
1836 |
|
if (pProgress && pProgress->callback) { |
1837 |
|
subprogress.__range_min = subprogress.__range_max; |
1838 |
|
subprogress.__range_max = pProgress->__range_max; // schedule remaining percentage for this subtask |
1839 |
|
} |
1840 |
|
__notify_progress(&subprogress, 0.0f); |
1841 |
|
LoadInstruments(&subprogress); |
1842 |
|
__notify_progress(&subprogress, 1.0f); |
1843 |
|
} |
1844 |
if (!pInstruments) return NULL; |
if (!pInstruments) return NULL; |
1845 |
InstrumentsIterator = pInstruments->begin(); |
InstrumentsIterator = pInstruments->begin(); |
1846 |
for (uint i = 0; InstrumentsIterator != pInstruments->end(); i++) { |
for (uint i = 0; InstrumentsIterator != pInstruments->end(); i++) { |
1850 |
return NULL; |
return NULL; |
1851 |
} |
} |
1852 |
|
|
1853 |
void File::LoadInstruments() { |
void File::LoadInstruments(progress_t* pProgress) { |
1854 |
RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); |
RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); |
1855 |
if (lstInstruments) { |
if (lstInstruments) { |
1856 |
|
int iInstrumentIndex = 0; |
1857 |
RIFF::List* lstInstr = lstInstruments->GetFirstSubList(); |
RIFF::List* lstInstr = lstInstruments->GetFirstSubList(); |
1858 |
while (lstInstr) { |
while (lstInstr) { |
1859 |
if (lstInstr->GetListType() == LIST_TYPE_INS) { |
if (lstInstr->GetListType() == LIST_TYPE_INS) { |
1860 |
|
// notify current progress |
1861 |
|
const float localProgress = (float) iInstrumentIndex / (float) Instruments; |
1862 |
|
__notify_progress(pProgress, localProgress); |
1863 |
|
|
1864 |
|
// divide local progress into subprogress for loading current Instrument |
1865 |
|
progress_t subprogress; |
1866 |
|
__divide_progress(pProgress, &subprogress, Instruments, iInstrumentIndex); |
1867 |
|
|
1868 |
if (!pInstruments) pInstruments = new InstrumentList; |
if (!pInstruments) pInstruments = new InstrumentList; |
1869 |
pInstruments->push_back(new Instrument(this, lstInstr)); |
pInstruments->push_back(new Instrument(this, lstInstr, &subprogress)); |
1870 |
|
|
1871 |
|
iInstrumentIndex++; |
1872 |
} |
} |
1873 |
lstInstr = lstInstruments->GetNextSubList(); |
lstInstr = lstInstruments->GetNextSubList(); |
1874 |
} |
} |
1875 |
|
__notify_progress(pProgress, 1.0); // notify done |
1876 |
} |
} |
1877 |
else throw gig::Exception("Mandatory <lins> list chunk not found."); |
else throw gig::Exception("Mandatory <lins> list chunk not found."); |
1878 |
} |
} |
1889 |
std::cout << "gig::Exception: " << Message << std::endl; |
std::cout << "gig::Exception: " << Message << std::endl; |
1890 |
} |
} |
1891 |
|
|
1892 |
|
|
1893 |
|
// *************** functions *************** |
1894 |
|
// * |
1895 |
|
|
1896 |
|
/** |
1897 |
|
* Returns the name of this C++ library. This is usually "libgig" of |
1898 |
|
* course. This call is equivalent to RIFF::libraryName() and |
1899 |
|
* DLS::libraryName(). |
1900 |
|
*/ |
1901 |
|
String libraryName() { |
1902 |
|
return PACKAGE; |
1903 |
|
} |
1904 |
|
|
1905 |
|
/** |
1906 |
|
* Returns version of this C++ library. This call is equivalent to |
1907 |
|
* RIFF::libraryVersion() and DLS::libraryVersion(). |
1908 |
|
*/ |
1909 |
|
String libraryVersion() { |
1910 |
|
return VERSION; |
1911 |
|
} |
1912 |
|
|
1913 |
} // namespace gig |
} // namespace gig |