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

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revision 3731 by schoenebeck, Sat Feb 1 15:35:07 2020 UTC revision 3925 by schoenebeck, Mon Jun 14 12:15:51 2021 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) 2003-2020 by Christian Schoenebeck                      *   *   Copyright (C) 2003-2021 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 482  namespace { Line 482  namespace {
482              ScanCompressedSample();              ScanCompressedSample();
483          }          }
484    
485          // we use a buffer for decompression and for truncating 24 bit samples to 16 bit          // we use a buffer for decompression only
486          if ((Compressed || BitDepth == 24) && !InternalDecompressionBuffer.Size) {          if (Compressed && !InternalDecompressionBuffer.Size) {
487              InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE];              InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE];
488              InternalDecompressionBuffer.Size   = INITIAL_SAMPLE_BUFFER_SIZE;              InternalDecompressionBuffer.Size   = INITIAL_SAMPLE_BUFFER_SIZE;
489          }          }
# Line 3498  namespace { Line 3498  namespace {
3498          RIFF::List* _3prg = rgn->GetSubList(LIST_TYPE_3PRG);          RIFF::List* _3prg = rgn->GetSubList(LIST_TYPE_3PRG);
3499          if (_3prg) {          if (_3prg) {
3500              int dimensionRegionNr = 0;              int dimensionRegionNr = 0;
3501              RIFF::List* _3ewl = _3prg->GetFirstSubList();              size_t i = 0;
3502              while (_3ewl) {              for (RIFF::List* _3ewl = _3prg->GetSubListAt(i); _3ewl;
3503                     _3ewl = _3prg->GetSubListAt(++i))
3504                {
3505                  if (_3ewl->GetListType() == LIST_TYPE_3EWL) {                  if (_3ewl->GetListType() == LIST_TYPE_3EWL) {
3506                      pDimensionRegions[dimensionRegionNr] = new DimensionRegion(this, _3ewl);                      pDimensionRegions[dimensionRegionNr] = new DimensionRegion(this, _3ewl);
3507                      dimensionRegionNr++;                      dimensionRegionNr++;
3508                  }                  }
                 _3ewl = _3prg->GetNextSubList();  
3509              }              }
3510              if (dimensionRegionNr == 0) throw gig::Exception("No dimension region found.");              if (dimensionRegionNr == 0) throw gig::Exception("No dimension region found.");
3511          }          }
# Line 3807  namespace { Line 3808  namespace {
3808       * @throws gig::Exception if requested zone could not be deleted       * @throws gig::Exception if requested zone could not be deleted
3809       */       */
3810      void Region::DeleteDimensionZone(dimension_t type, int zone) {      void Region::DeleteDimensionZone(dimension_t type, int zone) {
3811            if (!Dimensions)
3812                throw gig::Exception("Could not delete dimension zone, because there is no dimension at all.");
3813          dimension_def_t* oldDef = GetDimensionDefinition(type);          dimension_def_t* oldDef = GetDimensionDefinition(type);
3814          if (!oldDef)          if (!oldDef)
3815              throw gig::Exception("Could not delete dimension zone, no such dimension of given type");              throw gig::Exception("Could not delete dimension zone, no such dimension of given type");
# Line 3835  namespace { Line 3838  namespace {
3838          // requested by the arguments of this method call) to the temporary          // requested by the arguments of this method call) to the temporary
3839          // region, and don't use Region::CopyAssign() here for this task, since          // region, and don't use Region::CopyAssign() here for this task, since
3840          // it would also alter fast lookup helper variables here and there          // it would also alter fast lookup helper variables here and there
3841          dimension_def_t newDef;          dimension_def_t newDef = {};
3842          for (int i = 0; i < Dimensions; ++i) {          for (int i = 0; i < Dimensions; ++i) {
3843              dimension_def_t def = pDimensionDefinitions[i]; // copy, don't reference              dimension_def_t def = pDimensionDefinitions[i]; // copy, don't reference
3844              // is this the dimension requested by the method arguments? ...              // is this the dimension requested by the method arguments? ...
# Line 3846  namespace { Line 3849  namespace {
3849              }              }
3850              tempRgn->AddDimension(&def);              tempRgn->AddDimension(&def);
3851          }          }
3852            // silence clang sanitizer warning
3853            if (newDef.dimension == dimension_none)
3854                throw gig::Exception("Unexpected internal failure resolving dimension in DeleteDimensionZone() [this is a bug].");
3855    
3856          // find the dimension index in the tempRegion which is the dimension          // find the dimension index in the tempRegion which is the dimension
3857          // type passed to this method (paranoidly expecting different order)          // type passed to this method (paranoidly expecting different order)
# Line 3946  namespace { Line 3952  namespace {
3952       * @throws gig::Exception if requested zone could not be splitted       * @throws gig::Exception if requested zone could not be splitted
3953       */       */
3954      void Region::SplitDimensionZone(dimension_t type, int zone) {      void Region::SplitDimensionZone(dimension_t type, int zone) {
3955            if (!Dimensions)
3956                throw gig::Exception("Could not split dimension zone, because there is no dimension at all.");
3957          dimension_def_t* oldDef = GetDimensionDefinition(type);          dimension_def_t* oldDef = GetDimensionDefinition(type);
3958          if (!oldDef)          if (!oldDef)
3959              throw gig::Exception("Could not split dimension zone, no such dimension of given type");              throw gig::Exception("Could not split dimension zone, no such dimension of given type");
# Line 3972  namespace { Line 3980  namespace {
3980          // requested by the arguments of this method call) to the temporary          // requested by the arguments of this method call) to the temporary
3981          // region, and don't use Region::CopyAssign() here for this task, since          // region, and don't use Region::CopyAssign() here for this task, since
3982          // it would also alter fast lookup helper variables here and there          // it would also alter fast lookup helper variables here and there
3983          dimension_def_t newDef;          dimension_def_t newDef = {};
3984          for (int i = 0; i < Dimensions; ++i) {          for (int i = 0; i < Dimensions; ++i) {
3985              dimension_def_t def = pDimensionDefinitions[i]; // copy, don't reference              dimension_def_t def = pDimensionDefinitions[i]; // copy, don't reference
3986              // is this the dimension requested by the method arguments? ...              // is this the dimension requested by the method arguments? ...
# Line 3983  namespace { Line 3991  namespace {
3991              }              }
3992              tempRgn->AddDimension(&def);              tempRgn->AddDimension(&def);
3993          }          }
3994            // silence clang sanitizer warning
3995            if (newDef.dimension == dimension_none)
3996                throw gig::Exception("Unexpected internal failure resolving dimension in SplitDimensionZone() [this is a bug].");
3997    
3998          // find the dimension index in the tempRegion which is the dimension          // find the dimension index in the tempRegion which is the dimension
3999          // type passed to this method (paranoidly expecting different order)          // type passed to this method (paranoidly expecting different order)
# Line 4896  namespace { Line 4907  namespace {
4907          pScripts = new std::list<Script*>;          pScripts = new std::list<Script*>;
4908          if (!pList) return;          if (!pList) return;
4909    
4910          for (RIFF::Chunk* ck = pList->GetFirstSubChunk(); ck;          size_t i = 0;
4911               ck = pList->GetNextSubChunk())          for (RIFF::Chunk* ck = pList->GetSubChunkAt(i); ck;
4912                 ck = pList->GetSubChunkAt(++i))
4913          {          {
4914              if (ck->GetChunkID() == CHUNK_ID_SCRI) {              if (ck->GetChunkID() == CHUNK_ID_SCRI) {
4915                  pScripts->push_back(new Script(this, ck));                  pScripts->push_back(new Script(this, ck));
# Line 4977  namespace { Line 4989  namespace {
4989              if (!pRegions) pRegions = new RegionList;              if (!pRegions) pRegions = new RegionList;
4990              RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN);              RIFF::List* lrgn = insList->GetSubList(LIST_TYPE_LRGN);
4991              if (lrgn) {              if (lrgn) {
4992                  RIFF::List* rgn = lrgn->GetFirstSubList();                  size_t i = 0;
4993                  while (rgn) {                  for (RIFF::List* rgn = lrgn->GetSubListAt(i); rgn;
4994                         rgn = lrgn->GetSubListAt(++i))
4995                    {
4996                      if (rgn->GetListType() == LIST_TYPE_RGN) {                      if (rgn->GetListType() == LIST_TYPE_RGN) {
4997                          if (pProgress)                          if (pProgress)
4998                              __notify_progress(pProgress, (float) pRegions->size() / (float) Regions);                              __notify_progress(pProgress, (float) pRegions->size() / (float) Regions);
4999                          pRegions->push_back(new Region(this, rgn));                          pRegions->push_back(new Region(this, rgn));
5000                      }                      }
                     rgn = lrgn->GetNextSubList();  
5001                  }                  }
5002                  // Creating Region Key Table for fast lookup                  // Creating Region Key Table for fast lookup
5003                  UpdateRegionKeyTable();                  UpdateRegionKeyTable();
# Line 5696  namespace { Line 5709  namespace {
5709       * still being able to fine tune certain aspects of the script for each       * still being able to fine tune certain aspects of the script for each
5710       * instrument individually.       * instrument individually.
5711       *       *
5712         * @note This is an own format extension which did not exist i.e. in the
5713         * GigaStudio 4 software. It will currently only work with LinuxSampler and
5714         * Gigedit.
5715         *
5716       * @param slot - script slot index of the variable to be retrieved       * @param slot - script slot index of the variable to be retrieved
5717       * @param variable - name of the 'patch' variable in that script       * @param variable - name of the 'patch' variable in that script
5718       */       */
# Line 5727  namespace { Line 5744  namespace {
5744       * still being able to fine tune certain aspects of the script for each       * still being able to fine tune certain aspects of the script for each
5745       * instrument individually.       * instrument individually.
5746       *       *
5747         * @note This is an own format extension which did not exist i.e. in the
5748         * GigaStudio 4 software. It will currently only work with LinuxSampler and
5749         * Gigedit.
5750         *
5751       * @param slot - script slot index of the variable to be retrieved       * @param slot - script slot index of the variable to be retrieved
5752       */       */
5753      std::map<String,String> Instrument::GetScriptPatchVariables(int slot) {      std::map<String,String> Instrument::GetScriptPatchVariables(int slot) {
# Line 5754  namespace { Line 5775  namespace {
5775       * still being able to fine tune certain aspects of the script for each       * still being able to fine tune certain aspects of the script for each
5776       * instrument individually.       * instrument individually.
5777       *       *
5778         * @note This is an own format extension which did not exist i.e. in the
5779         * GigaStudio 4 software. It will currently only work with LinuxSampler and
5780         * Gigedit.
5781         *
5782       * @param slot - script slot index of the variable to be retrieved       * @param slot - script slot index of the variable to be retrieved
5783       * @param variable - name of the 'patch' variable in that script       * @param variable - name of the 'patch' variable in that script
5784       */       */
# Line 5774  namespace { Line 5799  namespace {
5799       * still being able to fine tune certain aspects of the script for each       * still being able to fine tune certain aspects of the script for each
5800       * instrument individually.       * instrument individually.
5801       *       *
5802         * @note This is an own format extension which did not exist i.e. in the
5803         * GigaStudio 4 software. It will currently only work with LinuxSampler and
5804         * Gigedit.
5805         *
5806       * @param slot - script slot index of the variable to be set       * @param slot - script slot index of the variable to be set
5807       * @param variable - name of the 'patch' variable in that script       * @param variable - name of the 'patch' variable in that script
5808       * @param value - overridden initial value for that script variable       * @param value - overridden initial value for that script variable
# Line 5814  namespace { Line 5843  namespace {
5843       * still being able to fine tune certain aspects of the script for each       * still being able to fine tune certain aspects of the script for each
5844       * instrument individually.       * instrument individually.
5845       *       *
5846         * @note This is an own format extension which did not exist i.e. in the
5847         * GigaStudio 4 software. It will currently only work with LinuxSampler and
5848         * Gigedit.
5849         *
5850       * @param slot - script slot index of the variable to be unset       * @param slot - script slot index of the variable to be unset
5851       * @param variable - name of the 'patch' variable in that script       * @param variable - name of the 'patch' variable in that script
5852       */       */
# Line 5938  namespace { Line 5971  namespace {
5971          PianoReleaseMode = orig->PianoReleaseMode;          PianoReleaseMode = orig->PianoReleaseMode;
5972          DimensionKeyRange = orig->DimensionKeyRange;          DimensionKeyRange = orig->DimensionKeyRange;
5973          scriptPoolFileOffsets = orig->scriptPoolFileOffsets;          scriptPoolFileOffsets = orig->scriptPoolFileOffsets;
5974          pScriptRefs = orig->pScriptRefs;          // deep copy of pScriptRefs required (to avoid undefined behaviour)
5975            if (pScriptRefs) delete pScriptRefs;
5976            pScriptRefs = new std::vector<_ScriptPooolRef>;
5977            if (orig->pScriptRefs)
5978                *pScriptRefs = *orig->pScriptRefs;
5979          scriptVars = orig->scriptVars;          scriptVars = orig->scriptVars;
5980                    
5981          // free old midi rules          // free old midi rules
# Line 6049  namespace { Line 6086  namespace {
6086    
6087          if (!pNameChunk && pFile->pVersion && pFile->pVersion->major > 2) {          if (!pNameChunk && pFile->pVersion && pFile->pVersion->major > 2) {
6088              // v3 has a fixed list of 128 strings, find a free one              // v3 has a fixed list of 128 strings, find a free one
6089              for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) {              size_t i = 0;
6090                for (RIFF::Chunk* ck = _3gnl->GetSubChunkAt(i); ck; ck = _3gnl->GetSubChunkAt(++i)) {
6091                  if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) {                  if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) {
6092                      pNameChunk = ck;                      pNameChunk = ck;
6093                      break;                      break;
# Line 6327  namespace { Line 6365  namespace {
6365    
6366          if (!pSamples) pSamples = new SampleList;          if (!pSamples) pSamples = new SampleList;
6367    
         RIFF::File* file = pRIFF;  
   
6368          // just for progress calculation          // just for progress calculation
6369          int iSampleIndex  = 0;          int iSampleIndex  = 0;
6370          int iTotalSamples = WavePoolCount;          int iTotalSamples = WavePoolCount;
# Line 6409  namespace { Line 6445  namespace {
6445              if (wvpl) {              if (wvpl) {
6446                  file_offset_t wvplFileOffset = wvpl->GetFilePos() -                  file_offset_t wvplFileOffset = wvpl->GetFilePos() -
6447                                                 wvpl->GetPos(); // should be zero, but just to be sure                                                 wvpl->GetPos(); // should be zero, but just to be sure
6448                  RIFF::List* wave = wvpl->GetFirstSubList();                  size_t i = 0;
6449                  while (wave) {                  for (RIFF::List* wave = wvpl->GetSubListAt(i); wave;
6450                         wave = wvpl->GetSubListAt(++i))
6451                    {
6452                      if (wave->GetListType() == LIST_TYPE_WAVE) {                      if (wave->GetListType() == LIST_TYPE_WAVE) {
6453                          // notify current progress                          // notify current progress
6454                          if (pProgress) {                          if (pProgress) {
# Line 6423  namespace { Line 6461  namespace {
6461    
6462                          iSampleIndex++;                          iSampleIndex++;
6463                      }                      }
                     wave = wvpl->GetNextSubList();  
6464                  }                  }
6465              }              }
6466          }          }
# Line 6656  namespace { Line 6693  namespace {
6693          RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);          RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS);
6694          if (lstInstruments) {          if (lstInstruments) {
6695              int iInstrumentIndex = 0;              int iInstrumentIndex = 0;
6696              RIFF::List* lstInstr = lstInstruments->GetFirstSubList();              size_t i = 0;
6697              while (lstInstr) {              for (RIFF::List* lstInstr = lstInstruments->GetSubListAt(i);
6698                     lstInstr; lstInstr = lstInstruments->GetSubListAt(++i))
6699                {
6700                  if (lstInstr->GetListType() == LIST_TYPE_INS) {                  if (lstInstr->GetListType() == LIST_TYPE_INS) {
6701                      if (pProgress) {                      if (pProgress) {
6702                          // notify current progress                          // notify current progress
# Line 6675  namespace { Line 6714  namespace {
6714    
6715                      iInstrumentIndex++;                      iInstrumentIndex++;
6716                  }                  }
                 lstInstr = lstInstruments->GetNextSubList();  
6717              }              }
6718              if (pProgress)              if (pProgress)
6719                  __notify_progress(pProgress, 1.0); // notify done                  __notify_progress(pProgress, 1.0); // notify done
# Line 6941  namespace { Line 6979  namespace {
6979          if (lst3gri) {          if (lst3gri) {
6980              RIFF::List* lst3gnl = lst3gri->GetSubList(LIST_TYPE_3GNL);              RIFF::List* lst3gnl = lst3gri->GetSubList(LIST_TYPE_3GNL);
6981              if (lst3gnl) {              if (lst3gnl) {
6982                  RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk();                  size_t i = 0;
6983                  while (ck) {                  for (RIFF::Chunk* ck = lst3gnl->GetSubChunkAt(i); ck;
6984                         ck = lst3gnl->GetSubChunkAt(++i))
6985                    {
6986                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {
6987                          if (pVersion && pVersion->major > 2 &&                          if (pVersion && pVersion->major > 2 &&
6988                              strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break;                              strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break;
6989    
6990                          pGroups->push_back(new Group(this, ck));                          pGroups->push_back(new Group(this, ck));
6991                      }                      }
                     ck = lst3gnl->GetNextSubChunk();  
6992                  }                  }
6993              }              }
6994          }          }
# Line 7039  namespace { Line 7078  namespace {
7078          pScriptGroups = new std::list<ScriptGroup*>;          pScriptGroups = new std::list<ScriptGroup*>;
7079          RIFF::List* lstLS = pRIFF->GetSubList(LIST_TYPE_3LS);          RIFF::List* lstLS = pRIFF->GetSubList(LIST_TYPE_3LS);
7080          if (lstLS) {          if (lstLS) {
7081              for (RIFF::List* lst = lstLS->GetFirstSubList(); lst;              size_t i = 0;
7082                   lst = lstLS->GetNextSubList())              for (RIFF::List* lst = lstLS->GetSubListAt(i); lst;
7083                     lst = lstLS->GetSubListAt(++i))
7084              {              {
7085                  if (lst->GetListType() == LIST_TYPE_RTIS) {                  if (lst->GetListType() == LIST_TYPE_RTIS) {
7086                      pScriptGroups->push_back(new ScriptGroup(this, lst));                      pScriptGroups->push_back(new ScriptGroup(this, lst));
# Line 7101  namespace { Line 7141  namespace {
7141              // INFO was added by Resource::UpdateChunks - make sure it              // INFO was added by Resource::UpdateChunks - make sure it
7142              // is placed first in file              // is placed first in file
7143              RIFF::Chunk* info = pRIFF->GetSubList(LIST_TYPE_INFO);              RIFF::Chunk* info = pRIFF->GetSubList(LIST_TYPE_INFO);
7144              RIFF::Chunk* first = pRIFF->GetFirstSubChunk();              RIFF::Chunk* first = pRIFF->GetSubChunkAt(0);
7145              if (first != info) {              if (first != info) {
7146                  pRIFF->MoveSubChunk(info, first);                  pRIFF->MoveSubChunk(info, first);
7147              }              }
# Line 7122  namespace { Line 7162  namespace {
7162              // v3: make sure the file has 128 3gnm chunks              // v3: make sure the file has 128 3gnm chunks
7163              // (before updating the Group chunks)              // (before updating the Group chunks)
7164              if (pVersion && pVersion->major > 2) {              if (pVersion && pVersion->major > 2) {
7165                  RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk();                  size_t i = 0;
7166                  for (int i = 0 ; i < 128 ; i++) {                  for (RIFF::Chunk* _3gnm = _3gnl->GetSubChunkAt(i); i < 128;
7167                         _3gnm = _3gnl->GetSubChunkAt(++i))
7168                    {
7169                      // create 128 empty placeholder strings which will either                      // create 128 empty placeholder strings which will either
7170                      // be filled by Group::UpdateChunks below or left empty.                      // be filled by Group::UpdateChunks below or left empty.
7171                      ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64);                      ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64);
                     if (_3gnm) _3gnm = _3gnl->GetNextSubChunk();  
7172                  }                  }
7173              }              }
7174    
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