/[svn]/libgig/trunk/src/gig.cpp
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Diff of /libgig/trunk/src/gig.cpp

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revision 3348 by schoenebeck, Tue Oct 3 15:05:45 2017 UTC revision 3710 by schoenebeck, Fri Jan 10 13:32:34 2020 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   libgig - C++ cross-platform Gigasampler format file access library    *   *   libgig - C++ cross-platform Gigasampler format file access library    *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003-2017 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2020 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  *
# Line 412  namespace { Line 412  namespace {
412    
413          pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX);          pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX);
414          if (pCk3gix) {          if (pCk3gix) {
415                pCk3gix->SetPos(0);
416    
417              uint16_t iSampleGroup = pCk3gix->ReadInt16();              uint16_t iSampleGroup = pCk3gix->ReadInt16();
418              pGroup = pFile->GetGroup(iSampleGroup);              pGroup = pFile->GetGroup(iSampleGroup);
419          } else { // '3gix' chunk missing          } else { // '3gix' chunk missing
# Line 421  namespace { Line 423  namespace {
423    
424          pCkSmpl = waveList->GetSubChunk(CHUNK_ID_SMPL);          pCkSmpl = waveList->GetSubChunk(CHUNK_ID_SMPL);
425          if (pCkSmpl) {          if (pCkSmpl) {
426                pCkSmpl->SetPos(0);
427    
428              Manufacturer  = pCkSmpl->ReadInt32();              Manufacturer  = pCkSmpl->ReadInt32();
429              Product       = pCkSmpl->ReadInt32();              Product       = pCkSmpl->ReadInt32();
430              SamplePeriod  = pCkSmpl->ReadInt32();              SamplePeriod  = pCkSmpl->ReadInt32();
# Line 467  namespace { Line 471  namespace {
471          Dithered          = false;          Dithered          = false;
472          TruncatedBits     = 0;          TruncatedBits     = 0;
473          if (Compressed) {          if (Compressed) {
474                ewav->SetPos(0);
475    
476              uint32_t version = ewav->ReadInt32();              uint32_t version = ewav->ReadInt32();
477              if (version == 3 && BitDepth == 24) {              if (version > 2 && BitDepth == 24) {
478                  Dithered = ewav->ReadInt32();                  Dithered = ewav->ReadInt32();
479                  ewav->SetPos(Channels == 2 ? 84 : 64);                  ewav->SetPos(Channels == 2 ? 84 : 64);
480                  TruncatedBits = ewav->ReadInt32();                  TruncatedBits = ewav->ReadInt32();
# Line 1500  namespace { Line 1506  namespace {
1506    
1507          RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA);          RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA);
1508          if (_3ewa) { // if '3ewa' chunk exists          if (_3ewa) { // if '3ewa' chunk exists
1509                _3ewa->SetPos(0);
1510    
1511              _3ewa->ReadInt32(); // unknown, always == chunk size ?              _3ewa->ReadInt32(); // unknown, always == chunk size ?
1512              LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32());              LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32());
1513              EG3Attack     = (double) GIG_EXP_DECODE(_3ewa->ReadInt32());              EG3Attack     = (double) GIG_EXP_DECODE(_3ewa->ReadInt32());
# Line 1732  namespace { Line 1740  namespace {
1740              VCFType                         = vcf_type_lowpass;              VCFType                         = vcf_type_lowpass;
1741              memset(DimensionUpperLimits, 127, 8);              memset(DimensionUpperLimits, 127, 8);
1742          }          }
1743          // format extension for EG behavior options, these will *NOT* work with  
1744          // Gigasampler/GigaStudio !          // chunk for own format extensions, these will *NOT* work with Gigasampler/GigaStudio !
1745          RIFF::Chunk* lsde = _3ewl->GetSubChunk(CHUNK_ID_LSDE);          RIFF::Chunk* lsde = _3ewl->GetSubChunk(CHUNK_ID_LSDE);
1746          if (lsde) {          if (lsde) { // format extension for EG behavior options
1747                lsde->SetPos(0);
1748    
1749              eg_opt_t* pEGOpts[2] = { &EG1Options, &EG2Options };              eg_opt_t* pEGOpts[2] = { &EG1Options, &EG2Options };
1750              for (int i = 0; i < 2; ++i) {              for (int i = 0; i < 2; ++i) { // NOTE: we reserved a 3rd byte for a potential future EG3 option
1751                  unsigned char byte = lsde->ReadUint8();                  unsigned char byte = lsde->ReadUint8();
1752                  pEGOpts[i]->AttackCancel     = byte & 1;                  pEGOpts[i]->AttackCancel     = byte & 1;
1753                  pEGOpts[i]->AttackHoldCancel = byte & (1 << 1);                  pEGOpts[i]->AttackHoldCancel = byte & (1 << 1);
# Line 1746  namespace { Line 1756  namespace {
1756                  pEGOpts[i]->ReleaseCancel    = byte & (1 << 4);                  pEGOpts[i]->ReleaseCancel    = byte & (1 << 4);
1757              }              }
1758          }          }
1759            // format extension for sustain pedal up effect on release trigger samples
1760            if (lsde && lsde->GetSize() > 3) { // NOTE: we reserved the 3rd byte for a potential future EG3 option
1761                lsde->SetPos(3);
1762                uint8_t byte = lsde->ReadUint8();
1763                SustainReleaseTrigger   = static_cast<sust_rel_trg_t>(byte & 0x03);
1764                NoNoteOffReleaseTrigger = byte >> 7;
1765            } else {
1766                SustainReleaseTrigger   = sust_rel_trg_none;
1767                NoNoteOffReleaseTrigger = false;
1768            }
1769            // format extension for LFOs' wave form, phase displacement and for
1770            // LFO3's flip phase
1771            if (lsde && lsde->GetSize() > 4) {
1772                lsde->SetPos(4);
1773                LFO1WaveForm = static_cast<lfo_wave_t>( lsde->ReadUint16() );
1774                LFO2WaveForm = static_cast<lfo_wave_t>( lsde->ReadUint16() );
1775                LFO3WaveForm = static_cast<lfo_wave_t>( lsde->ReadUint16() );
1776                lsde->ReadUint16(); // unused 16 bits, reserved for potential future use
1777                LFO1Phase = (double) GIG_EXP_DECODE( lsde->ReadInt32() );
1778                LFO2Phase = (double) GIG_EXP_DECODE( lsde->ReadInt32() );
1779                LFO3Phase = (double) GIG_EXP_DECODE( lsde->ReadInt32() );
1780                const uint32_t flags = lsde->ReadInt32();
1781                LFO3FlipPhase = flags & 1;
1782            } else {
1783                LFO1WaveForm = lfo_wave_sine;
1784                LFO2WaveForm = lfo_wave_sine;
1785                LFO3WaveForm = lfo_wave_sine;
1786                LFO1Phase = 0.0;
1787                LFO2Phase = 0.0;
1788                LFO3Phase = 0.0;
1789                LFO3FlipPhase = false;
1790            }
1791    
1792          pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve,          pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve,
1793                                                       VelocityResponseDepth,                                                       VelocityResponseDepth,
# Line 1871  namespace { Line 1913  namespace {
1913          SRLZ(EG1ControllerAttackInfluence);          SRLZ(EG1ControllerAttackInfluence);
1914          SRLZ(EG1ControllerDecayInfluence);          SRLZ(EG1ControllerDecayInfluence);
1915          SRLZ(EG1ControllerReleaseInfluence);          SRLZ(EG1ControllerReleaseInfluence);
1916            SRLZ(LFO1WaveForm);
1917          SRLZ(LFO1Frequency);          SRLZ(LFO1Frequency);
1918            SRLZ(LFO1Phase);
1919          SRLZ(LFO1InternalDepth);          SRLZ(LFO1InternalDepth);
1920          SRLZ(LFO1ControlDepth);          SRLZ(LFO1ControlDepth);
1921          SRLZ(LFO1Controller);          SRLZ(LFO1Controller);
# Line 1889  namespace { Line 1933  namespace {
1933          SRLZ(EG2ControllerAttackInfluence);          SRLZ(EG2ControllerAttackInfluence);
1934          SRLZ(EG2ControllerDecayInfluence);          SRLZ(EG2ControllerDecayInfluence);
1935          SRLZ(EG2ControllerReleaseInfluence);          SRLZ(EG2ControllerReleaseInfluence);
1936            SRLZ(LFO2WaveForm);
1937          SRLZ(LFO2Frequency);          SRLZ(LFO2Frequency);
1938            SRLZ(LFO2Phase);
1939          SRLZ(LFO2InternalDepth);          SRLZ(LFO2InternalDepth);
1940          SRLZ(LFO2ControlDepth);          SRLZ(LFO2ControlDepth);
1941          SRLZ(LFO2Controller);          SRLZ(LFO2Controller);
# Line 1897  namespace { Line 1943  namespace {
1943          SRLZ(LFO2Sync);          SRLZ(LFO2Sync);
1944          SRLZ(EG3Attack);          SRLZ(EG3Attack);
1945          SRLZ(EG3Depth);          SRLZ(EG3Depth);
1946            SRLZ(LFO3WaveForm);
1947          SRLZ(LFO3Frequency);          SRLZ(LFO3Frequency);
1948            SRLZ(LFO3Phase);
1949          SRLZ(LFO3InternalDepth);          SRLZ(LFO3InternalDepth);
1950          SRLZ(LFO3ControlDepth);          SRLZ(LFO3ControlDepth);
1951          SRLZ(LFO3Controller);          SRLZ(LFO3Controller);
1952            SRLZ(LFO3FlipPhase);
1953          SRLZ(LFO3Sync);          SRLZ(LFO3Sync);
1954          SRLZ(VCFEnabled);          SRLZ(VCFEnabled);
1955          SRLZ(VCFType);          SRLZ(VCFType);
# Line 1936  namespace { Line 1985  namespace {
1985          SRLZ(SampleAttenuation);          SRLZ(SampleAttenuation);
1986          SRLZ(EG1Options);          SRLZ(EG1Options);
1987          SRLZ(EG2Options);          SRLZ(EG2Options);
1988            SRLZ(SustainReleaseTrigger);
1989            SRLZ(NoNoteOffReleaseTrigger);
1990    
1991          // derived attributes from DLS::Sampler          // derived attributes from DLS::Sampler
1992          SRLZ(FineTune);          SRLZ(FineTune);
# Line 1975  namespace { Line 2026  namespace {
2026          RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA);          RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA);
2027          if (!_3ewa) {          if (!_3ewa) {
2028              File* pFile = (File*) GetParent()->GetParent()->GetParent();              File* pFile = (File*) GetParent()->GetParent()->GetParent();
2029              bool version3 = pFile->pVersion && pFile->pVersion->major == 3;              bool versiongt2 = pFile->pVersion && pFile->pVersion->major > 2;
2030              _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, version3 ? 148 : 140);              _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, versiongt2 ? 148 : 140);
2031          }          }
2032          pData = (uint8_t*) _3ewa->LoadChunkData();          pData = (uint8_t*) _3ewa->LoadChunkData();
2033    
# Line 2243  namespace { Line 2294  namespace {
2294              memcpy(&pData[140], DimensionUpperLimits, 8);              memcpy(&pData[140], DimensionUpperLimits, 8);
2295          }          }
2296    
2297          // format extension for EG behavior options, these will *NOT* work with          // chunk for own format extensions, these will *NOT* work with
2298          // Gigasampler/GigaStudio !          // Gigasampler/GigaStudio !
2299          RIFF::Chunk* lsde = pParentList->GetSubChunk(CHUNK_ID_LSDE);          RIFF::Chunk* lsde = pParentList->GetSubChunk(CHUNK_ID_LSDE);
2300          if (!lsde) {          const int lsdeSize =
2301              // only add this "LSDE" chunk if the EG options do not match the              3 /* EG cancel options */ +
2302              // default EG behavior              1 /* sustain pedal up on release trigger option */ +
2303              eg_opt_t defaultOpt;              8 /* LFOs' wave forms */ + 12 /* LFOs' phase */ + 4 /* flags (LFO3FlipPhase) */;
2304              if (memcmp(&EG1Options, &defaultOpt, sizeof(eg_opt_t)) ||          if (!lsde && UsesAnyGigFormatExtension()) {
2305                  memcmp(&EG2Options, &defaultOpt, sizeof(eg_opt_t)))              // only add this "LSDE" chunk if there is some (format extension)
2306              {              // setting effective that would require our "LSDE" format extension
2307                  lsde = pParentList->AddSubChunk(CHUNK_ID_LSDE, 2);              // chunk to be stored
2308                  // move LSDE chunk to the end of parent list              lsde = pParentList->AddSubChunk(CHUNK_ID_LSDE, lsdeSize);
2309                  pParentList->MoveSubChunk(lsde, (RIFF::Chunk*)NULL);              // move LSDE chunk to the end of parent list
2310              }              pParentList->MoveSubChunk(lsde, (RIFF::Chunk*)NULL);
2311          }          }
2312          if (lsde) {          if (lsde) {
2313                if (lsde->GetNewSize() < lsdeSize)
2314                    lsde->Resize(lsdeSize);
2315                // format extension for EG behavior options
2316              unsigned char* pData = (unsigned char*) lsde->LoadChunkData();              unsigned char* pData = (unsigned char*) lsde->LoadChunkData();
2317              eg_opt_t* pEGOpts[2] = { &EG1Options, &EG2Options };              eg_opt_t* pEGOpts[2] = { &EG1Options, &EG2Options };
2318              for (int i = 0; i < 2; ++i) {              for (int i = 0; i < 2; ++i) { // NOTE: we reserved the 3rd byte for a potential future EG3 option
2319                  pData[i] =                  pData[i] =
2320                      (pEGOpts[i]->AttackCancel     ? 1 : 0) |                      (pEGOpts[i]->AttackCancel     ? 1 : 0) |
2321                      (pEGOpts[i]->AttackHoldCancel ? (1<<1) : 0) |                      (pEGOpts[i]->AttackHoldCancel ? (1<<1) : 0) |
# Line 2269  namespace { Line 2323  namespace {
2323                      (pEGOpts[i]->Decay2Cancel     ? (1<<3) : 0) |                      (pEGOpts[i]->Decay2Cancel     ? (1<<3) : 0) |
2324                      (pEGOpts[i]->ReleaseCancel    ? (1<<4) : 0);                      (pEGOpts[i]->ReleaseCancel    ? (1<<4) : 0);
2325              }              }
2326                // format extension for release trigger options
2327                pData[3] = static_cast<uint8_t>(SustainReleaseTrigger) | (NoNoteOffReleaseTrigger ? (1<<7) : 0);
2328                // format extension for LFOs' wave form, phase displacement and for
2329                // LFO3's flip phase
2330                store16(&pData[4], LFO1WaveForm);
2331                store16(&pData[6], LFO2WaveForm);
2332                store16(&pData[8], LFO3WaveForm);
2333                //NOTE: 16 bits reserved here for potential future use !
2334                const int32_t lfo1Phase = (int32_t) GIG_EXP_ENCODE(LFO1Phase);
2335                const int32_t lfo2Phase = (int32_t) GIG_EXP_ENCODE(LFO2Phase);
2336                const int32_t lfo3Phase = (int32_t) GIG_EXP_ENCODE(LFO3Phase);
2337                store32(&pData[12], lfo1Phase);
2338                store32(&pData[16], lfo2Phase);
2339                store32(&pData[20], lfo3Phase);
2340                const int32_t flags = LFO3FlipPhase ? 1 : 0;
2341                store32(&pData[24], flags);
2342    
2343                // compile time sanity check: is our last store access here
2344                // consistent with the initial lsdeSize value assignment?
2345                static_assert(lsdeSize == 28, "Inconsistency in assumed 'LSDE' RIFF chunk size");
2346          }          }
2347      }      }
2348    
2349        /**
2350         * Returns @c true in case this DimensionRegion object uses any gig format
2351         * extension, that is whether this DimensionRegion object currently has any
2352         * setting effective that would require our "LSDE" RIFF chunk to be stored
2353         * to the gig file.
2354         *
2355         * Right now this is a private method. It is considerable though this method
2356         * to become (in slightly modified form) a public API method in future, i.e.
2357         * to allow instrument editors to visualize and/or warn the user of any
2358         * format extension being used. Right now this method really just serves to
2359         * answer the question whether an LSDE chunk is required, for the public API
2360         * purpose this method would also need to check whether any other setting
2361         * stored to the regular value '3ewa' chunk, is actually a format extension
2362         * as well.
2363         */
2364        bool DimensionRegion::UsesAnyGigFormatExtension() const {
2365            eg_opt_t defaultOpt;
2366            return memcmp(&EG1Options, &defaultOpt, sizeof(eg_opt_t)) ||
2367                   memcmp(&EG2Options, &defaultOpt, sizeof(eg_opt_t)) ||
2368                   SustainReleaseTrigger || NoNoteOffReleaseTrigger ||
2369                   LFO1WaveForm || LFO2WaveForm || LFO3WaveForm ||
2370                   LFO1Phase || LFO2Phase || LFO3Phase ||
2371                   LFO3FlipPhase;
2372        }
2373    
2374      double* DimensionRegion::GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth) {      double* DimensionRegion::GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth) {
2375          curve_type_t curveType = releaseVelocityResponseCurve;          curve_type_t curveType = releaseVelocityResponseCurve;
2376          uint8_t depth = releaseVelocityResponseDepth;          uint8_t depth = releaseVelocityResponseDepth;
# Line 2309  namespace { Line 2408  namespace {
2408      // 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
2409      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)
2410      {      {
2411            // sanity check input parameters
2412            // (fallback to some default parameters on ill input)
2413            switch (curveType) {
2414                case curve_type_nonlinear:
2415                case curve_type_linear:
2416                    if (depth > 4) {
2417                        printf("Warning: Invalid depth (0x%x) for velocity curve type (0x%x).\n", depth, curveType);
2418                        depth   = 0;
2419                        scaling = 0;
2420                    }
2421                    break;
2422                case curve_type_special:
2423                    if (depth > 5) {
2424                        printf("Warning: Invalid depth (0x%x) for velocity curve type 'special'.\n", depth);
2425                        depth   = 0;
2426                        scaling = 0;
2427                    }
2428                    break;
2429                case curve_type_unknown:
2430                default:
2431                    printf("Warning: Unknown velocity curve type (0x%x).\n", curveType);
2432                    curveType = curve_type_linear;
2433                    depth     = 0;
2434                    scaling   = 0;
2435                    break;
2436            }
2437    
2438          double* table;          double* table;
2439          uint32_t tableKey = (curveType<<16) | (depth<<8) | scaling;          uint32_t tableKey = (curveType<<16) | (depth<<8) | scaling;
2440          if (pVelocityTables->count(tableKey)) { // if key exists          if (pVelocityTables->count(tableKey)) { // if key exists
# Line 3181  namespace { Line 3307  namespace {
3307          }          }
3308          Layers = 1;          Layers = 1;
3309          File* file = (File*) GetParent()->GetParent();          File* file = (File*) GetParent()->GetParent();
3310          int dimensionBits = (file->pVersion && file->pVersion->major == 3) ? 8 : 5;          int dimensionBits = (file->pVersion && file->pVersion->major > 2) ? 8 : 5;
3311    
3312          // Actual Loading          // Actual Loading
3313    
# Line 3191  namespace { Line 3317  namespace {
3317    
3318          RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK);          RIFF::Chunk* _3lnk = rgnList->GetSubChunk(CHUNK_ID_3LNK);
3319          if (_3lnk) {          if (_3lnk) {
3320                _3lnk->SetPos(0);
3321    
3322              DimensionRegions = _3lnk->ReadUint32();              DimensionRegions = _3lnk->ReadUint32();
3323              for (int i = 0; i < dimensionBits; i++) {              for (int i = 0; i < dimensionBits; i++) {
3324                  dimension_t dimension = static_cast<dimension_t>(_3lnk->ReadUint8());                  dimension_t dimension = static_cast<dimension_t>(_3lnk->ReadUint8());
# Line 3225  namespace { Line 3353  namespace {
3353              UpdateVelocityTable();              UpdateVelocityTable();
3354    
3355              // jump to start of the wave pool indices (if not already there)              // jump to start of the wave pool indices (if not already there)
3356              if (file->pVersion && file->pVersion->major == 3)              if (file->pVersion && file->pVersion->major > 2)
3357                  _3lnk->SetPos(68); // version 3 has a different 3lnk structure                  _3lnk->SetPos(68); // version 3 has a different 3lnk structure
3358              else              else
3359                  _3lnk->SetPos(44);                  _3lnk->SetPos(44);
# Line 3284  namespace { Line 3412  namespace {
3412          }          }
3413    
3414          File* pFile = (File*) GetParent()->GetParent();          File* pFile = (File*) GetParent()->GetParent();
3415          bool version3 = pFile->pVersion && pFile->pVersion->major == 3;          const bool versiongt2 = pFile->pVersion && pFile->pVersion->major > 2;
3416          const int iMaxDimensions =  version3 ? 8 : 5;          const int iMaxDimensions =  versiongt2 ? 8 : 5;
3417          const int iMaxDimensionRegions = version3 ? 256 : 32;          const int iMaxDimensionRegions = versiongt2 ? 256 : 32;
3418    
3419          // make sure '3lnk' chunk exists          // make sure '3lnk' chunk exists
3420          RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK);          RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK);
3421          if (!_3lnk) {          if (!_3lnk) {
3422              const int _3lnkChunkSize = version3 ? 1092 : 172;              const int _3lnkChunkSize = versiongt2 ? 1092 : 172;
3423              _3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize);              _3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize);
3424              memset(_3lnk->LoadChunkData(), 0, _3lnkChunkSize);              memset(_3lnk->LoadChunkData(), 0, _3lnkChunkSize);
3425    
# Line 3315  namespace { Line 3443  namespace {
3443          }          }
3444    
3445          // update wave pool table in '3lnk' chunk          // update wave pool table in '3lnk' chunk
3446          const int iWavePoolOffset = version3 ? 68 : 44;          const int iWavePoolOffset = versiongt2 ? 68 : 44;
3447          for (uint i = 0; i < iMaxDimensionRegions; i++) {          for (uint i = 0; i < iMaxDimensionRegions; i++) {
3448              int iWaveIndex = -1;              int iWaveIndex = -1;
3449              if (i < DimensionRegions) {              if (i < DimensionRegions) {
# Line 3331  namespace { Line 3459  namespace {
3459              }              }
3460              store32(&pData[iWavePoolOffset + i * 4], iWaveIndex);              store32(&pData[iWavePoolOffset + i * 4], iWaveIndex);
3461          }          }
3462    
3463            // The following chunks are just added for compatibility with the
3464            // GigaStudio software, which would show a warning if these were
3465            // missing. However currently these chunks don't cover any useful
3466            // data. So if this gig file uses any of our own gig format
3467            // extensions which would cause this gig file to be unloadable
3468            // with GSt software anyway, then just skip these GSt compatibility
3469            // chunks here as well.
3470            if (versiongt2 && !UsesAnyGigFormatExtension()) {
3471                // add 3dnm list which always seems to be empty
3472                RIFF::List* _3dnm = pCkRegion->GetSubList(LIST_TYPE_3DNM);
3473                if (!_3dnm) _3dnm = pCkRegion->AddSubList(LIST_TYPE_3DNM);
3474    
3475                // add 3ddp chunk which always seems to have 16 bytes of 0xFF
3476                RIFF::Chunk* _3ddp = pCkRegion->GetSubChunk(CHUNK_ID_3DDP);
3477                if (!_3ddp) _3ddp =  pCkRegion->AddSubChunk(CHUNK_ID_3DDP, 16);
3478                uint8_t* pData = (uint8_t*) _3ddp->LoadChunkData();
3479                for (int i = 0; i < 16; i += 4) {
3480                    store32(&pData[i], 0xFFFFFFFF);
3481                }
3482    
3483                // move 3dnm and 3ddp to the end of the region list
3484                pCkRegion->MoveSubChunk(pCkRegion->GetSubList(LIST_TYPE_3DNM), (RIFF::Chunk*)NULL);
3485                pCkRegion->MoveSubChunk(pCkRegion->GetSubChunk(CHUNK_ID_3DDP), (RIFF::Chunk*)NULL);
3486            } else {
3487                // this is intended for the user switching from GSt >= 3 version
3488                // back to an older format version, delete GSt3 chunks ...
3489                RIFF::List* _3dnm = pCkRegion->GetSubList(LIST_TYPE_3DNM);
3490                if (_3dnm) pCkRegion->DeleteSubChunk(_3dnm);
3491    
3492                RIFF::Chunk* _3ddp = pCkRegion->GetSubChunk(CHUNK_ID_3DDP);
3493                if (_3ddp) pCkRegion->DeleteSubChunk(_3ddp);
3494            }
3495      }      }
3496    
3497      void Region::LoadDimensionRegions(RIFF::List* rgn) {      void Region::LoadDimensionRegions(RIFF::List* rgn) {
# Line 3458  namespace { Line 3619  namespace {
3619    
3620          // check if max. amount of dimensions reached          // check if max. amount of dimensions reached
3621          File* file = (File*) GetParent()->GetParent();          File* file = (File*) GetParent()->GetParent();
3622          const int iMaxDimensions = (file->pVersion && file->pVersion->major == 3) ? 8 : 5;          const int iMaxDimensions = (file->pVersion && file->pVersion->major > 2) ? 8 : 5;
3623          if (Dimensions >= iMaxDimensions)          if (Dimensions >= iMaxDimensions)
3624              throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimensions already reached");              throw gig::Exception("Could not add new dimension, max. amount of " + ToString(iMaxDimensions) + " dimensions already reached");
3625          // check if max. amount of dimension bits reached          // check if max. amount of dimension bits reached
# Line 3750  namespace { Line 3911  namespace {
3911          }          }
3912    
3913          // delete temporary region          // delete temporary region
3914            tempRgn->DeleteChunks();
3915          delete tempRgn;          delete tempRgn;
3916    
3917          UpdateVelocityTable();          UpdateVelocityTable();
# Line 3868  namespace { Line 4030  namespace {
4030          // now tempRegion's dimensions and DimensionRegions basically reflect          // now tempRegion's dimensions and DimensionRegions basically reflect
4031          // what we wanted to get for this actual Region here, so we now just          // what we wanted to get for this actual Region here, so we now just
4032          // delete and recreate the dimension in question with the new amount          // delete and recreate the dimension in question with the new amount
4033          // zones and then copy back from tempRegion                // zones and then copy back from tempRegion. we're actually deleting and
4034          DeleteDimension(oldDef);          // recreating all dimensions here, to avoid altering the precise order
4035          AddDimension(&newDef);          // of the dimensions (which would not be an error per so, but it would
4036            // cause usability issues with instrument editors)
4037            {
4038                std::vector<dimension_def_t> oldDefs;
4039                for (int i = 0; i < Dimensions; ++i)
4040                    oldDefs.push_back(pDimensionDefinitions[i]); // copy, don't reference
4041                for (int i = Dimensions - 1; i >= 0; --i)
4042                    DeleteDimension(&pDimensionDefinitions[i]);
4043                for (int i = 0; i < oldDefs.size(); ++i) {
4044                    dimension_def_t& def = oldDefs[i];
4045                    AddDimension(
4046                        (def.dimension == newDef.dimension) ? &newDef : &def
4047                    );
4048                }
4049            }
4050          for (int iSrc = 0; iSrc < 256; ++iSrc) {          for (int iSrc = 0; iSrc < 256; ++iSrc) {
4051              DimensionRegion* srcDimRgn = tempRgn->pDimensionRegions[iSrc];              DimensionRegion* srcDimRgn = tempRgn->pDimensionRegions[iSrc];
4052              if (!srcDimRgn) continue;              if (!srcDimRgn) continue;
# Line 3889  namespace { Line 4065  namespace {
4065          }          }
4066    
4067          // delete temporary region          // delete temporary region
4068            tempRgn->DeleteChunks();
4069          delete tempRgn;          delete tempRgn;
4070    
4071          UpdateVelocityTable();          UpdateVelocityTable();
# Line 4116  namespace { Line 4293  namespace {
4293          if ((int32_t)WavePoolTableIndex == -1) return NULL;          if ((int32_t)WavePoolTableIndex == -1) return NULL;
4294          File* file = (File*) GetParent()->GetParent();          File* file = (File*) GetParent()->GetParent();
4295          if (!file->pWavePoolTable) return NULL;          if (!file->pWavePoolTable) return NULL;
4296            if (WavePoolTableIndex + 1 > file->WavePoolCount) return NULL;
4297          // for new files or files >= 2 GB use 64 bit wave pool offsets          // for new files or files >= 2 GB use 64 bit wave pool offsets
4298          if (file->pRIFF->IsNew() || (file->pRIFF->GetCurrentFileSize() >> 31)) {          if (file->pRIFF->IsNew() || (file->pRIFF->GetCurrentFileSize() >> 31)) {
4299              // use 64 bit wave pool offsets (treating this as large file)              // use 64 bit wave pool offsets (treating this as large file)
# Line 4192  namespace { Line 4370  namespace {
4370          Layers = orig->Layers;          Layers = orig->Layers;
4371      }      }
4372    
4373        /**
4374         * Returns @c true in case this Region object uses any gig format
4375         * extension, that is e.g. whether any DimensionRegion object currently
4376         * has any setting effective that would require our "LSDE" RIFF chunk to
4377         * be stored to the gig file.
4378         *
4379         * Right now this is a private method. It is considerable though this method
4380         * to become (in slightly modified form) a public API method in future, i.e.
4381         * to allow instrument editors to visualize and/or warn the user of any gig
4382         * format extension being used. See also comments on
4383         * DimensionRegion::UsesAnyGigFormatExtension() for details about such a
4384         * potential public API change in future.
4385         */
4386        bool Region::UsesAnyGigFormatExtension() const {
4387            for (int i = 0; i < 256; i++) {
4388                if (pDimensionRegions[i]) {
4389                    if (pDimensionRegions[i]->UsesAnyGigFormatExtension())
4390                        return true;
4391                }
4392            }
4393            return false;
4394        }
4395    
4396    
4397  // *************** MidiRule ***************  // *************** MidiRule ***************
4398  // *  // *
# Line 4366  namespace { Line 4567  namespace {
4567          pGroup = group;          pGroup = group;
4568          pChunk = ckScri;          pChunk = ckScri;
4569          if (ckScri) { // object is loaded from file ...          if (ckScri) { // object is loaded from file ...
4570                ckScri->SetPos(0);
4571    
4572              // read header              // read header
4573              uint32_t headerSize = ckScri->ReadUint32();              uint32_t headerSize = ckScri->ReadUint32();
4574              Compression = (Compression_t) ckScri->ReadUint32();              Compression = (Compression_t) ckScri->ReadUint32();
# Line 4418  namespace { Line 4621  namespace {
4621          memcpy(&data[0], &text[0], text.size());          memcpy(&data[0], &text[0], text.size());
4622      }      }
4623    
4624        /** @brief Remove all RIFF chunks associated with this Script object.
4625         *
4626         * At the moment Script::DeleteChunks() does nothing. It is
4627         * recommended to call this method explicitly though from deriving classes's
4628         * own overridden implementation of this method to avoid potential future
4629         * compatiblity issues.
4630         *
4631         * See DLS::Storage::DeleteChunks() for details.
4632         */
4633        void Script::DeleteChunks() {
4634        }
4635    
4636      /**      /**
4637       * Apply this script to the respective RIFF chunks. You have to call       * Apply this script to the respective RIFF chunks. You have to call
4638       * File::Save() to make changes persistent.       * File::Save() to make changes persistent.
# Line 4533  namespace { Line 4748  namespace {
4748          }          }
4749      }      }
4750    
4751        /** @brief Remove all RIFF chunks associated with this ScriptGroup object.
4752         *
4753         * At the moment ScriptGroup::DeleteChunks() does nothing. It is
4754         * recommended to call this method explicitly though from deriving classes's
4755         * own overridden implementation of this method to avoid potential future
4756         * compatiblity issues.
4757         *
4758         * See DLS::Storage::DeleteChunks() for details.
4759         */
4760        void ScriptGroup::DeleteChunks() {
4761        }
4762    
4763      /**      /**
4764       * Apply this script group to the respective RIFF chunks. You have to call       * Apply this script group to the respective RIFF chunks. You have to call
4765       * File::Save() to make changes persistent.       * File::Save() to make changes persistent.
# Line 4657  namespace { Line 4884  namespace {
4884          if (lart) {          if (lart) {
4885              RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG);              RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG);
4886              if (_3ewg) {              if (_3ewg) {
4887                    _3ewg->SetPos(0);
4888    
4889                  EffectSend             = _3ewg->ReadUint16();                  EffectSend             = _3ewg->ReadUint16();
4890                  Attenuation            = _3ewg->ReadInt32();                  Attenuation            = _3ewg->ReadInt32();
4891                  FineTune               = _3ewg->ReadInt16();                  FineTune               = _3ewg->ReadInt16();
# Line 4701  namespace { Line 4930  namespace {
4930                  RIFF::List* rgn = lrgn->GetFirstSubList();                  RIFF::List* rgn = lrgn->GetFirstSubList();
4931                  while (rgn) {                  while (rgn) {
4932                      if (rgn->GetListType() == LIST_TYPE_RGN) {                      if (rgn->GetListType() == LIST_TYPE_RGN) {
4933                          __notify_progress(pProgress, (float) pRegions->size() / (float) Regions);                          if (pProgress)
4934                                __notify_progress(pProgress, (float) pRegions->size() / (float) Regions);
4935                          pRegions->push_back(new Region(this, rgn));                          pRegions->push_back(new Region(this, rgn));
4936                      }                      }
4937                      rgn = lrgn->GetNextSubList();                      rgn = lrgn->GetNextSubList();
# Line 4716  namespace { Line 4946  namespace {
4946          if (lst3LS) {          if (lst3LS) {
4947              RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL);              RIFF::Chunk* ckSCSL = lst3LS->GetSubChunk(CHUNK_ID_SCSL);
4948              if (ckSCSL) {              if (ckSCSL) {
4949                    ckSCSL->SetPos(0);
4950    
4951                  int headerSize = ckSCSL->ReadUint32();                  int headerSize = ckSCSL->ReadUint32();
4952                  int slotCount  = ckSCSL->ReadUint32();                  int slotCount  = ckSCSL->ReadUint32();
4953                  if (slotCount) {                  if (slotCount) {
# Line 4733  namespace { Line 4965  namespace {
4965              }              }
4966          }          }
4967    
4968          __notify_progress(pProgress, 1.0f); // notify done          if (pProgress)
4969                __notify_progress(pProgress, 1.0f); // notify done
4970      }      }
4971    
4972      void Instrument::UpdateRegionKeyTable() {      void Instrument::UpdateRegionKeyTable() {
# Line 4789  namespace { Line 5022  namespace {
5022              File* pFile = (File*) GetParent();              File* pFile = (File*) GetParent();
5023    
5024              // 3ewg is bigger in gig3, as it includes the iMIDI rules              // 3ewg is bigger in gig3, as it includes the iMIDI rules
5025              int size = (pFile->pVersion && pFile->pVersion->major == 3) ? 16416 : 12;              int size = (pFile->pVersion && pFile->pVersion->major > 2) ? 16416 : 12;
5026              _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size);              _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size);
5027              memset(_3ewg->LoadChunkData(), 0, size);              memset(_3ewg->LoadChunkData(), 0, size);
5028          }          }
# Line 5330  namespace { Line 5563  namespace {
5563          UpdateRegionKeyTable();          UpdateRegionKeyTable();
5564      }      }
5565    
5566        /**
5567         * Returns @c true in case this Instrument object uses any gig format
5568         * extension, that is e.g. whether any DimensionRegion object currently
5569         * has any setting effective that would require our "LSDE" RIFF chunk to
5570         * be stored to the gig file.
5571         *
5572         * Right now this is a private method. It is considerable though this method
5573         * to become (in slightly modified form) a public API method in future, i.e.
5574         * to allow instrument editors to visualize and/or warn the user of any gig
5575         * format extension being used. See also comments on
5576         * DimensionRegion::UsesAnyGigFormatExtension() for details about such a
5577         * potential public API change in future.
5578         */
5579        bool Instrument::UsesAnyGigFormatExtension() const {
5580            if (!pRegions) return false;
5581            RegionList::const_iterator iter = pRegions->begin();
5582            RegionList::const_iterator end  = pRegions->end();
5583            for (; iter != end; ++iter) {
5584                gig::Region* rgn = static_cast<gig::Region*>(*iter);
5585                if (rgn->UsesAnyGigFormatExtension())
5586                    return true;
5587            }
5588            return false;
5589        }
5590    
5591    
5592  // *************** Group ***************  // *************** Group ***************
5593  // *  // *
# Line 5346  namespace { Line 5604  namespace {
5604          ::LoadString(pNameChunk, Name);          ::LoadString(pNameChunk, Name);
5605      }      }
5606    
5607        /** @brief Destructor.
5608         *
5609         * Currently this destructor implementation does nothing.
5610         */
5611      Group::~Group() {      Group::~Group() {
5612          // remove the chunk associated with this group (if any)      }
5613          if (pNameChunk) pNameChunk->GetParent()->DeleteSubChunk(pNameChunk);  
5614        /** @brief Remove all RIFF chunks associated with this Group object.
5615         *
5616         * See DLS::Storage::DeleteChunks() for details.
5617         */
5618        void Group::DeleteChunks() {
5619            // handle own RIFF chunks
5620            if (pNameChunk) {
5621                pNameChunk->GetParent()->DeleteSubChunk(pNameChunk);
5622                pNameChunk = NULL;
5623            }
5624      }      }
5625    
5626      /** @brief Update chunks with current group settings.      /** @brief Update chunks with current group settings.
# Line 5371  namespace { Line 5643  namespace {
5643          RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL);          RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL);
5644          if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL);          if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL);
5645    
5646          if (!pNameChunk && pFile->pVersion && pFile->pVersion->major == 3) {          if (!pNameChunk && pFile->pVersion && pFile->pVersion->major > 2) {
5647              // v3 has a fixed list of 128 strings, find a free one              // v3 has a fixed list of 128 strings, find a free one
5648              for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) {              for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) {
5649                  if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) {                  if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) {
# Line 5466  namespace { Line 5738  namespace {
5738          0, 3, 20030331 & 0xffff, 20030331 >> 16          0, 3, 20030331 & 0xffff, 20030331 >> 16
5739      };      };
5740    
5741        /// Reflects Gigasampler file format version 4.0 (2007-10-12).
5742        const DLS::version_t File::VERSION_4 = {
5743            0, 4, 20071012 & 0xffff, 20071012 >> 16
5744        };
5745    
5746      static const DLS::Info::string_length_t _FileFixedStringLengths[] = {      static const DLS::Info::string_length_t _FileFixedStringLengths[] = {
5747          { CHUNK_ID_IARL, 256 },          { CHUNK_ID_IARL, 256 },
5748          { CHUNK_ID_IART, 128 },          { CHUNK_ID_IART, 128 },
# Line 5562  namespace { Line 5839  namespace {
5839          return static_cast<gig::Sample*>( *it );          return static_cast<gig::Sample*>( *it );
5840      }      }
5841    
5842        /**
5843         * Returns the total amount of samples of this gig file.
5844         *
5845         * Note that this method might block for a long time in case it is required
5846         * to load the sample info for the first time.
5847         *
5848         * @returns total amount of samples
5849         */
5850        size_t File::CountSamples() {
5851            if (!pSamples) LoadSamples();
5852            if (!pSamples) return 0;
5853            return pSamples->size();
5854        }
5855    
5856      /** @brief Add a new sample.      /** @brief Add a new sample.
5857       *       *
5858       * This will create a new Sample object for the gig file. You have to       * This will create a new Sample object for the gig file. You have to
# Line 5600  namespace { Line 5891  namespace {
5891          if (iter == pSamples->end()) throw gig::Exception("Could not delete sample, could not find given sample");          if (iter == pSamples->end()) throw gig::Exception("Could not delete sample, could not find given sample");
5892          if (SamplesIterator != pSamples->end() && *SamplesIterator == pSample) ++SamplesIterator; // avoid iterator invalidation          if (SamplesIterator != pSamples->end() && *SamplesIterator == pSample) ++SamplesIterator; // avoid iterator invalidation
5893          pSamples->erase(iter);          pSamples->erase(iter);
5894            pSample->DeleteChunks();
5895          delete pSample;          delete pSample;
5896    
5897          SampleList::iterator tmp = SamplesIterator;          SampleList::iterator tmp = SamplesIterator;
# Line 5637  namespace { Line 5929  namespace {
5929          int iSampleIndex  = 0;          int iSampleIndex  = 0;
5930          int iTotalSamples = WavePoolCount;          int iTotalSamples = WavePoolCount;
5931    
5932          // check if samples should be loaded from extension files          // just for assembling path of optional extension files to be read
5933          // (only for old gig files < 2 GB)          const std::string folder = parentPath(pRIFF->GetFileName());
5934          int lastFileNo = 0;          const std::string baseName = pathWithoutExtension(pRIFF->GetFileName());
5935          if (!file->IsNew() && !(file->GetCurrentFileSize() >> 31)) {  
5936              for (int i = 0 ; i < WavePoolCount ; i++) {          // the main gig file and the extension files (.gx01, ... , .gx98) may
5937                  if (pWavePoolTableHi[i] > lastFileNo) lastFileNo = pWavePoolTableHi[i];          // contain wave data (wave pool)
5938              }          std::vector<RIFF::File*> poolFiles;
5939          }          poolFiles.push_back(pRIFF);
5940          String name(pRIFF->GetFileName());  
5941          int nameLen = (int) name.length();          // get info about all extension files
5942          char suffix[6];          RIFF::Chunk* ckXfil = pRIFF->GetSubChunk(CHUNK_ID_XFIL);
5943          if (nameLen > 4 && name.substr(nameLen - 4) == ".gig") nameLen -= 4;          if (ckXfil) { // there are extension files (.gx01, ... , .gx98) ...
5944                const uint32_t n = ckXfil->ReadInt32();
5945          for (int fileNo = 0 ; ; ) {              for (int i = 0; i < n; i++) {
5946                    // read the filename and load the extension file
5947                    std::string name;
5948                    ckXfil->ReadString(name, 128);
5949                    std::string path = concatPath(folder, name);
5950                    RIFF::File* pExtFile = new RIFF::File(path);
5951                    // check that the dlsids match
5952                    RIFF::Chunk* ckDLSID = pExtFile->GetSubChunk(CHUNK_ID_DLID);
5953                    if (ckDLSID) {
5954                        ::DLS::dlsid_t idExpected;
5955                        idExpected.ulData1 = ckXfil->ReadInt32();
5956                        idExpected.usData2 = ckXfil->ReadInt16();
5957                        idExpected.usData3 = ckXfil->ReadInt16();
5958                        ckXfil->Read(idExpected.abData, 8, 1);
5959                        ::DLS::dlsid_t idFound;
5960                        ckDLSID->Read(&idFound.ulData1, 1, 4);
5961                        ckDLSID->Read(&idFound.usData2, 1, 2);
5962                        ckDLSID->Read(&idFound.usData3, 1, 2);
5963                        ckDLSID->Read(idFound.abData, 8, 1);
5964                        if (memcmp(&idExpected, &idFound, 16) != 0)
5965                            throw gig::Exception("dlsid mismatch for extension file: %s", path.c_str());
5966                    }
5967                    poolFiles.push_back(pExtFile);
5968                    ExtensionFiles.push_back(pExtFile);
5969                }
5970            }
5971    
5972            // check if a .gx99 (GigaPulse) file exists
5973            RIFF::Chunk* ckDoxf = pRIFF->GetSubChunk(CHUNK_ID_DOXF);
5974            if (ckDoxf) { // there is a .gx99 (GigaPulse) file ...
5975                std::string path = baseName + ".gx99";
5976                RIFF::File* pExtFile = new RIFF::File(path);
5977    
5978                // skip unused int and filename
5979                ckDoxf->SetPos(132, RIFF::stream_curpos);
5980    
5981                // check that the dlsids match
5982                RIFF::Chunk* ckDLSID = pExtFile->GetSubChunk(CHUNK_ID_DLID);
5983                if (ckDLSID) {
5984                    ::DLS::dlsid_t idExpected;
5985                    idExpected.ulData1 = ckDoxf->ReadInt32();
5986                    idExpected.usData2 = ckDoxf->ReadInt16();
5987                    idExpected.usData3 = ckDoxf->ReadInt16();
5988                    ckDoxf->Read(idExpected.abData, 8, 1);
5989                    ::DLS::dlsid_t idFound;
5990                    ckDLSID->Read(&idFound.ulData1, 1, 4);
5991                    ckDLSID->Read(&idFound.usData2, 1, 2);
5992                    ckDLSID->Read(&idFound.usData3, 1, 2);
5993                    ckDLSID->Read(idFound.abData, 8, 1);
5994                    if (memcmp(&idExpected, &idFound, 16) != 0)
5995                        throw gig::Exception("dlsid mismatch for GigaPulse file: %s", path.c_str());
5996                }
5997                poolFiles.push_back(pExtFile);
5998                ExtensionFiles.push_back(pExtFile);
5999            }
6000    
6001            // load samples from extension files (if required)
6002            for (int i = 0; i < poolFiles.size(); i++) {
6003                RIFF::File* file = poolFiles[i];
6004              RIFF::List* wvpl = file->GetSubList(LIST_TYPE_WVPL);              RIFF::List* wvpl = file->GetSubList(LIST_TYPE_WVPL);
6005              if (wvpl) {              if (wvpl) {
6006                  file_offset_t wvplFileOffset = wvpl->GetFilePos();                  file_offset_t wvplFileOffset = wvpl->GetFilePos() -
6007                                                   wvpl->GetPos(); // should be zero, but just to be sure
6008                  RIFF::List* wave = wvpl->GetFirstSubList();                  RIFF::List* wave = wvpl->GetFirstSubList();
6009                  while (wave) {                  while (wave) {
6010                      if (wave->GetListType() == LIST_TYPE_WAVE) {                      if (wave->GetListType() == LIST_TYPE_WAVE) {
6011                          // notify current progress                          // notify current progress
6012                          const float subprogress = (float) iSampleIndex / (float) iTotalSamples;                          if (pProgress) {
6013                          __notify_progress(pProgress, subprogress);                              const float subprogress = (float) iSampleIndex / (float) iTotalSamples;
6014                                __notify_progress(pProgress, subprogress);
6015                            }
6016    
6017                          file_offset_t waveFileOffset = wave->GetFilePos();                          file_offset_t waveFileOffset = wave->GetFilePos();
6018                          pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, fileNo, iSampleIndex));                          pSamples->push_back(new Sample(this, wave, waveFileOffset - wvplFileOffset, i, iSampleIndex));
6019    
6020                          iSampleIndex++;                          iSampleIndex++;
6021                      }                      }
6022                      wave = wvpl->GetNextSubList();                      wave = wvpl->GetNextSubList();
6023                  }                  }
6024                }
                 if (fileNo == lastFileNo) break;  
   
                 // open extension file (*.gx01, *.gx02, ...)  
                 fileNo++;  
                 sprintf(suffix, ".gx%02d", fileNo);  
                 name.replace(nameLen, 5, suffix);  
                 file = new RIFF::File(name);  
                 ExtensionFiles.push_back(file);  
             } else break;  
6025          }          }
6026    
6027          __notify_progress(pProgress, 1.0); // notify done          if (pProgress)
6028                __notify_progress(pProgress, 1.0); // notify done
6029      }      }
6030    
6031      Instrument* File::GetFirstInstrument() {      Instrument* File::GetFirstInstrument() {
# Line 5697  namespace { Line 6042  namespace {
6042      }      }
6043    
6044      /**      /**
6045         * Returns the total amount of instruments of this gig file.
6046         *
6047         * Note that this method might block for a long time in case it is required
6048         * to load the instruments info for the first time.
6049         *
6050         * @returns total amount of instruments
6051         */
6052        size_t File::CountInstruments() {
6053            if (!pInstruments) LoadInstruments();
6054            if (!pInstruments) return 0;
6055            return pInstruments->size();
6056        }
6057    
6058        /**
6059       * Returns the instrument with the given index.       * Returns the instrument with the given index.
6060       *       *
6061       * @param index     - number of the sought instrument (0..n)       * @param index     - number of the sought instrument (0..n)
# Line 5707  namespace { Line 6066  namespace {
6066          if (!pInstruments) {          if (!pInstruments) {
6067              // TODO: hack - we simply load ALL samples here, it would have been done in the Region constructor anyway (ATM)              // TODO: hack - we simply load ALL samples here, it would have been done in the Region constructor anyway (ATM)
6068    
6069              // sample loading subtask              if (pProgress) {
6070              progress_t subprogress;                  // sample loading subtask
6071              __divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask                  progress_t subprogress;
6072              __notify_progress(&subprogress, 0.0f);                  __divide_progress(pProgress, &subprogress, 3.0f, 0.0f); // randomly schedule 33% for this subtask
6073              if (GetAutoLoad())                  __notify_progress(&subprogress, 0.0f);
6074                  GetFirstSample(&subprogress); // now force all samples to be loaded                  if (GetAutoLoad())
6075              __notify_progress(&subprogress, 1.0f);                      GetFirstSample(&subprogress); // now force all samples to be loaded
6076                    __notify_progress(&subprogress, 1.0f);
6077              // instrument loading subtask  
6078              if (pProgress && pProgress->callback) {                  // instrument loading subtask
6079                  subprogress.__range_min = subprogress.__range_max;                  if (pProgress->callback) {
6080                  subprogress.__range_max = pProgress->__range_max; // schedule remaining percentage for this subtask                      subprogress.__range_min = subprogress.__range_max;
6081              }                      subprogress.__range_max = pProgress->__range_max; // schedule remaining percentage for this subtask
6082              __notify_progress(&subprogress, 0.0f);                  }
6083              LoadInstruments(&subprogress);                  __notify_progress(&subprogress, 0.0f);
6084              __notify_progress(&subprogress, 1.0f);                  LoadInstruments(&subprogress);
6085                    __notify_progress(&subprogress, 1.0f);
6086                } else {
6087                    // sample loading subtask
6088                    if (GetAutoLoad())
6089                        GetFirstSample(); // now force all samples to be loaded
6090    
6091                    // instrument loading subtask
6092                    LoadInstruments();
6093                }
6094          }          }
6095          if (!pInstruments) return NULL;          if (!pInstruments) return NULL;
6096          InstrumentsIterator = pInstruments->begin();          InstrumentsIterator = pInstruments->begin();
# Line 5871  namespace { Line 6239  namespace {
6239          InstrumentList::iterator iter = find(pInstruments->begin(), pInstruments->end(), (DLS::Instrument*) pInstrument);          InstrumentList::iterator iter = find(pInstruments->begin(), pInstruments->end(), (DLS::Instrument*) pInstrument);
6240          if (iter == pInstruments->end()) throw gig::Exception("Could not delete instrument, could not find given instrument");          if (iter == pInstruments->end()) throw gig::Exception("Could not delete instrument, could not find given instrument");
6241          pInstruments->erase(iter);          pInstruments->erase(iter);
6242            pInstrument->DeleteChunks();
6243          delete pInstrument;          delete pInstrument;
6244      }      }
6245    
# Line 5886  namespace { Line 6255  namespace {
6255              RIFF::List* lstInstr = lstInstruments->GetFirstSubList();              RIFF::List* lstInstr = lstInstruments->GetFirstSubList();
6256              while (lstInstr) {              while (lstInstr) {
6257                  if (lstInstr->GetListType() == LIST_TYPE_INS) {                  if (lstInstr->GetListType() == LIST_TYPE_INS) {
6258                      // notify current progress                      if (pProgress) {
6259                      const float localProgress = (float) iInstrumentIndex / (float) Instruments;                          // notify current progress
6260                      __notify_progress(pProgress, localProgress);                          const float localProgress = (float) iInstrumentIndex / (float) Instruments;
6261                            __notify_progress(pProgress, localProgress);
                     // divide local progress into subprogress for loading current Instrument  
                     progress_t subprogress;  
                     __divide_progress(pProgress, &subprogress, Instruments, iInstrumentIndex);  
6262    
6263                      pInstruments->push_back(new Instrument(this, lstInstr, &subprogress));                          // divide local progress into subprogress for loading current Instrument
6264                            progress_t subprogress;
6265                            __divide_progress(pProgress, &subprogress, Instruments, iInstrumentIndex);
6266    
6267                            pInstruments->push_back(new Instrument(this, lstInstr, &subprogress));
6268                        } else {
6269                            pInstruments->push_back(new Instrument(this, lstInstr));
6270                        }
6271    
6272                      iInstrumentIndex++;                      iInstrumentIndex++;
6273                  }                  }
6274                  lstInstr = lstInstruments->GetNextSubList();                  lstInstr = lstInstruments->GetNextSubList();
6275              }              }
6276              __notify_progress(pProgress, 1.0); // notify done              if (pProgress)
6277                    __notify_progress(pProgress, 1.0); // notify done
6278          }          }
6279      }      }
6280    
# Line 6015  namespace { Line 6389  namespace {
6389              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);
6390              // 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
6391              RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF);              RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF);
6392              if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf);              if (einf && pVersion && pVersion->major > 2) pRIFF->MoveSubChunk(_3crc, einf);
6393              bRequiresSave = true;              bRequiresSave = true;
6394          } else if (_3crc->GetNewSize() != pSamples->size() * 8) {          } else if (_3crc->GetNewSize() != pSamples->size() * 8) {
6395              _3crc->Resize(pSamples->size() * 8);              _3crc->Resize(pSamples->size() * 8);
# Line 6130  namespace { Line 6504  namespace {
6504          }          }
6505          // now delete this group object          // now delete this group object
6506          pGroups->erase(iter);          pGroups->erase(iter);
6507            pGroup->DeleteChunks();
6508          delete pGroup;          delete pGroup;
6509      }      }
6510    
# Line 6151  namespace { Line 6526  namespace {
6526          // move all members of this group to another group          // move all members of this group to another group
6527          pGroup->MoveAll();          pGroup->MoveAll();
6528          pGroups->erase(iter);          pGroups->erase(iter);
6529            pGroup->DeleteChunks();
6530          delete pGroup;          delete pGroup;
6531      }      }
6532    
# Line 6164  namespace { Line 6540  namespace {
6540                  RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk();                  RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk();
6541                  while (ck) {                  while (ck) {
6542                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {
6543                          if (pVersion && pVersion->major == 3 &&                          if (pVersion && pVersion->major > 2 &&
6544                              strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break;                              strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break;
6545    
6546                          pGroups->push_back(new Group(this, ck));                          pGroups->push_back(new Group(this, ck));
# Line 6250  namespace { Line 6626  namespace {
6626              pScriptGroup->DeleteScript(pScriptGroup->GetScript(i));              pScriptGroup->DeleteScript(pScriptGroup->GetScript(i));
6627          if (pScriptGroup->pList)          if (pScriptGroup->pList)
6628              pScriptGroup->pList->GetParent()->DeleteSubChunk(pScriptGroup->pList);              pScriptGroup->pList->GetParent()->DeleteSubChunk(pScriptGroup->pList);
6629            pScriptGroup->DeleteChunks();
6630          delete pScriptGroup;          delete pScriptGroup;
6631      }      }
6632    
# Line 6340  namespace { Line 6717  namespace {
6717    
6718              // v3: make sure the file has 128 3gnm chunks              // v3: make sure the file has 128 3gnm chunks
6719              // (before updating the Group chunks)              // (before updating the Group chunks)
6720              if (pVersion && pVersion->major == 3) {              if (pVersion && pVersion->major > 2) {
6721                  RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk();                  RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk();
6722                  for (int i = 0 ; i < 128 ; i++) {                  for (int i = 0 ; i < 128 ; i++) {
6723                      if (i >= pGroups->size()) ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64);                      // create 128 empty placeholder strings which will either
6724                        // be filled by Group::UpdateChunks below or left empty.
6725                        ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64);
6726                      if (_3gnm) _3gnm = _3gnl->GetNextSubChunk();                      if (_3gnm) _3gnm = _3gnl->GetNextSubChunk();
6727                  }                  }
6728              }              }
# Line 6486  namespace { Line 6865  namespace {
6865          } else /*if (newFile)*/ {          } else /*if (newFile)*/ {
6866              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);
6867              // 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
6868              if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf);              if (einf && pVersion && pVersion->major > 2) pRIFF->MoveSubChunk(_3crc, einf);
6869          }          }
6870          { // must be performed in RAM here ...          { // must be performed in RAM here ...
6871              uint32_t* pData = (uint32_t*) _3crc->LoadChunkData();              uint32_t* pData = (uint32_t*) _3crc->LoadChunkData();
# Line 6513  namespace { Line 6892  namespace {
6892      }      }
6893    
6894      /**      /**
6895       * Enable / disable automatic loading. By default this properyt is       * Enable / disable automatic loading. By default this property is
6896       * enabled and all informations are loaded automatically. However       * enabled and every information is loaded automatically. However
6897       * loading all Regions, DimensionRegions and especially samples might       * loading all Regions, DimensionRegions and especially samples might
6898       * take a long time for large .gig files, and sometimes one might only       * take a long time for large .gig files, and sometimes one might only
6899       * be interested in retrieving very superficial informations like the       * be interested in retrieving very superficial informations like the
# Line 6522  namespace { Line 6901  namespace {
6901       * automatic loading to avoid very slow response times.       * automatic loading to avoid very slow response times.
6902       *       *
6903       * @e CAUTION: by disabling this property many pointers (i.e. sample       * @e CAUTION: by disabling this property many pointers (i.e. sample
6904       * references) and informations will have invalid or even undefined       * references) and attributes will have invalid or even undefined
6905       * data! This feature is currently only intended for retrieving very       * data! This feature is currently only intended for retrieving very
6906       * superficial informations in a very fast way. Don't use it to retrieve       * superficial information in a very fast way. Don't use it to retrieve
6907       * details like synthesis informations or even to modify .gig files!       * details like synthesis information or even to modify .gig files!
6908       */       */
6909      void File::SetAutoLoad(bool b) {      void File::SetAutoLoad(bool b) {
6910          bAutoLoad = b;          bAutoLoad = b;
# Line 6539  namespace { Line 6918  namespace {
6918          return bAutoLoad;          return bAutoLoad;
6919      }      }
6920    
6921        /**
6922         * Returns @c true in case this gig File object uses any gig format
6923         * extension, that is e.g. whether any DimensionRegion object currently
6924         * has any setting effective that would require our "LSDE" RIFF chunk to
6925         * be stored to the gig file.
6926         *
6927         * Right now this is a private method. It is considerable though this method
6928         * to become (in slightly modified form) a public API method in future, i.e.
6929         * to allow instrument editors to visualize and/or warn the user of any gig
6930         * format extension being used. See also comments on
6931         * DimensionRegion::UsesAnyGigFormatExtension() for details about such a
6932         * potential public API change in future.
6933         */
6934        bool File::UsesAnyGigFormatExtension() const {
6935            if (!pInstruments) return false;
6936            InstrumentList::iterator iter = pInstruments->begin();
6937            InstrumentList::iterator end  = pInstruments->end();
6938            for (; iter != end; ++iter) {
6939                Instrument* pInstrument = static_cast<gig::Instrument*>(*iter);
6940                if (pInstrument->UsesAnyGigFormatExtension())
6941                    return true;
6942            }
6943            return false;
6944        }
6945    
6946    
6947  // *************** Exception ***************  // *************** Exception ***************
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