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

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revision 1247 by persson, Fri Jun 22 09:59:57 2007 UTC revision 1292 by schoenebeck, Sat Aug 11 14:38:51 2007 UTC
# Line 1152  namespace { Line 1152  namespace {
1152       *       *
1153       * Note: there is currently no support for writing compressed samples.       * Note: there is currently no support for writing compressed samples.
1154       *       *
1155         * For 16 bit samples, the data in the source buffer should be
1156         * int16_t (using native endianness). For 24 bit, the buffer
1157         * should contain three bytes per sample, little-endian.
1158         *
1159       * @param pBuffer     - source buffer       * @param pBuffer     - source buffer
1160       * @param SampleCount - number of sample points to write       * @param SampleCount - number of sample points to write
1161       * @throws DLS::Exception if current sample size is too small       * @throws DLS::Exception if current sample size is too small
# Line 1166  namespace { Line 1170  namespace {
1170          if (pCkData->GetPos() == 0) {          if (pCkData->GetPos() == 0) {
1171              crc.reset();              crc.reset();
1172          }          }
1173          unsigned long res = DLS::Sample::Write(pBuffer, SampleCount);          if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small");
1174            unsigned long res;
1175            if (BitDepth == 24) {
1176                res = pCkData->Write(pBuffer, SampleCount * FrameSize, 1) / FrameSize;
1177            } else { // 16 bit
1178                res = Channels == 2 ? pCkData->Write(pBuffer, SampleCount << 1, 2) >> 1
1179                                    : pCkData->Write(pBuffer, SampleCount, 2);
1180            }
1181          crc.update((unsigned char *)pBuffer, SampleCount * FrameSize);          crc.update((unsigned char *)pBuffer, SampleCount * FrameSize);
1182    
1183          // if this is the last write, update the checksum chunk in the          // if this is the last write, update the checksum chunk in the
# Line 1539  namespace { Line 1550  namespace {
1550       * It will be called automatically when File::Save() was called.       * It will be called automatically when File::Save() was called.
1551       */       */
1552      void DimensionRegion::UpdateChunks() {      void DimensionRegion::UpdateChunks() {
1553            // check if wsmp is going to be created by
1554            // DLS::Sampler::UpdateChunks
1555            bool wsmp_created = !pParentList->GetSubChunk(CHUNK_ID_WSMP);
1556    
1557          // first update base class's chunk          // first update base class's chunk
1558          DLS::Sampler::UpdateChunks();          DLS::Sampler::UpdateChunks();
1559    
# Line 1552  namespace { Line 1567  namespace {
1567          // make sure '3ewa' chunk exists          // make sure '3ewa' chunk exists
1568          RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA);          RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA);
1569          if (!_3ewa)  _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, 140);          if (!_3ewa)  _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, 140);
1570            else if (wsmp_created) {
1571                // make sure the chunk order is: wsmp, 3ewa
1572                pParentList->MoveSubChunk(_3ewa, 0);
1573            }
1574          pData = (uint8_t*) _3ewa->LoadChunkData();          pData = (uint8_t*) _3ewa->LoadChunkData();
1575    
1576          // update '3ewa' chunk with DimensionRegion's current settings          // update '3ewa' chunk with DimensionRegion's current settings
# Line 1598  namespace { Line 1617  namespace {
1617          pData[44] = eg1ctl;          pData[44] = eg1ctl;
1618    
1619          const uint8_t eg1ctrloptions =          const uint8_t eg1ctrloptions =
1620              (EG1ControllerInvert) ? 0x01 : 0x00 |              (EG1ControllerInvert ? 0x01 : 0x00) |
1621              GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG1ControllerAttackInfluence) |              GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG1ControllerAttackInfluence) |
1622              GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG1ControllerDecayInfluence) |              GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG1ControllerDecayInfluence) |
1623              GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG1ControllerReleaseInfluence);              GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG1ControllerReleaseInfluence);
# Line 1608  namespace { Line 1627  namespace {
1627          pData[46] = eg2ctl;          pData[46] = eg2ctl;
1628    
1629          const uint8_t eg2ctrloptions =          const uint8_t eg2ctrloptions =
1630              (EG2ControllerInvert) ? 0x01 : 0x00 |              (EG2ControllerInvert ? 0x01 : 0x00) |
1631              GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG2ControllerAttackInfluence) |              GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG2ControllerAttackInfluence) |
1632              GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG2ControllerDecayInfluence) |              GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG2ControllerDecayInfluence) |
1633              GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG2ControllerReleaseInfluence);              GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG2ControllerReleaseInfluence);
# Line 1786  namespace { Line 1805  namespace {
1805          const uint8_t eg1hold = (EG1Hold) ? 0x80 : 0x00; // bit 7          const uint8_t eg1hold = (EG1Hold) ? 0x80 : 0x00; // bit 7
1806          pData[131] = eg1hold;          pData[131] = eg1hold;
1807    
1808          const uint8_t vcfcutoff = (VCFEnabled) ? 0x80 : 0x00 |  /* bit 7 */          const uint8_t vcfcutoff = (VCFEnabled ? 0x80 : 0x00) |  /* bit 7 */
1809                                    (VCFCutoff & 0x7f);   /* lower 7 bits */                                    (VCFCutoff & 0x7f);   /* lower 7 bits */
1810          pData[132] = vcfcutoff;          pData[132] = vcfcutoff;
1811    
1812          pData[133] = VCFCutoffController;          pData[133] = VCFCutoffController;
1813    
1814          const uint8_t vcfvelscale = (VCFCutoffControllerInvert) ? 0x80 : 0x00 | /* bit 7 */          const uint8_t vcfvelscale = (VCFCutoffControllerInvert ? 0x80 : 0x00) | /* bit 7 */
1815                                      (VCFVelocityScale & 0x7f); /* lower 7 bits */                                      (VCFVelocityScale & 0x7f); /* lower 7 bits */
1816          pData[134] = vcfvelscale;          pData[134] = vcfvelscale;
1817    
1818          // next byte unknown          // next byte unknown
1819    
1820          const uint8_t vcfresonance = (VCFResonanceDynamic) ? 0x00 : 0x80 | /* bit 7 */          const uint8_t vcfresonance = (VCFResonanceDynamic ? 0x00 : 0x80) | /* bit 7 */
1821                                       (VCFResonance & 0x7f); /* lower 7 bits */                                       (VCFResonance & 0x7f); /* lower 7 bits */
1822          pData[136] = vcfresonance;          pData[136] = vcfresonance;
1823    
1824          const uint8_t vcfbreakpoint = (VCFKeyboardTracking) ? 0x80 : 0x00 | /* bit 7 */          const uint8_t vcfbreakpoint = (VCFKeyboardTracking ? 0x80 : 0x00) | /* bit 7 */
1825                                        (VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */                                        (VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */
1826          pData[137] = vcfbreakpoint;          pData[137] = vcfbreakpoint;
1827    
# Line 2293  namespace { Line 2312  namespace {
2312          for (int i = 0; i < iMaxDimensions; i++) {          for (int i = 0; i < iMaxDimensions; i++) {
2313              pData[4 + i * 8] = (uint8_t) pDimensionDefinitions[i].dimension;              pData[4 + i * 8] = (uint8_t) pDimensionDefinitions[i].dimension;
2314              pData[5 + i * 8] = pDimensionDefinitions[i].bits;              pData[5 + i * 8] = pDimensionDefinitions[i].bits;
2315              pData[6 + i * 8] = shift;              pData[6 + i * 8] = pDimensionDefinitions[i].dimension == dimension_none ? 0 : shift;
2316              pData[7 + i * 8] = (1 << (shift + pDimensionDefinitions[i].bits)) - (1 << shift);              pData[7 + i * 8] = (1 << (shift + pDimensionDefinitions[i].bits)) - (1 << shift);
2317              pData[8 + i * 8] = pDimensionDefinitions[i].zones;              pData[8 + i * 8] = pDimensionDefinitions[i].zones;
2318              // next 3 bytes unknown, always zero?              // next 3 bytes unknown, always zero?
# Line 2315  namespace { Line 2334  namespace {
2334                          break;                          break;
2335                      }                      }
2336                  }                  }
                 if (iWaveIndex < 0) throw gig::Exception("Could not update gig::Region, could not find DimensionRegion's sample");  
2337              }              }
2338              store32(&pData[iWavePoolOffset + i * 4], iWaveIndex);              store32(&pData[iWavePoolOffset + i * 4], iWaveIndex);
2339          }          }
# Line 2467  namespace { Line 2485  namespace {
2485    
2486          // initialize the upper limits for this dimension          // initialize the upper limits for this dimension
2487          for (int z = 0, j = 0 ; z < pDimDef->zones ; z++, j += 1 << iCurrentBits) {          for (int z = 0, j = 0 ; z < pDimDef->zones ; z++, j += 1 << iCurrentBits) {
2488              uint8_t upperLimit = (z + 1) * 128.0 / pDimDef->zones - 1;              uint8_t upperLimit = uint8_t((z + 1) * 128.0 / pDimDef->zones - 1);
2489              for (int i = 0 ; i < 1 << iCurrentBits ; i++) {              for (int i = 0 ; i < 1 << iCurrentBits ; i++) {
2490                  pDimensionRegions[j + i]->DimensionUpperLimits[Dimensions] = upperLimit;                  pDimensionRegions[j + i]->DimensionUpperLimits[Dimensions] = upperLimit;
2491              }              }
# Line 2785  namespace { Line 2803  namespace {
2803          if (!lart)  lart = pCkInstrument->AddSubList(LIST_TYPE_LART);          if (!lart)  lart = pCkInstrument->AddSubList(LIST_TYPE_LART);
2804          // make sure '3ewg' RIFF chunk exists          // make sure '3ewg' RIFF chunk exists
2805          RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG);          RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG);
2806          if (!_3ewg)  _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, 12);          if (!_3ewg)  {
2807                File* pFile = (File*) GetParent();
2808    
2809                // 3ewg is bigger in gig3, as it includes the iMIDI rules
2810                int size = (pFile->pVersion && pFile->pVersion->major == 3) ? 16416 : 12;
2811                _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size);
2812                memset(_3ewg->LoadChunkData(), 0, size);
2813            }
2814          // update '3ewg' RIFF chunk          // update '3ewg' RIFF chunk
2815          uint8_t* pData = (uint8_t*) _3ewg->LoadChunkData();          uint8_t* pData = (uint8_t*) _3ewg->LoadChunkData();
2816          store16(&pData[0], EffectSend);          store16(&pData[0], EffectSend);
2817          store32(&pData[2], Attenuation);          store32(&pData[2], Attenuation);
2818          store16(&pData[6], FineTune);          store16(&pData[6], FineTune);
2819          store16(&pData[8], PitchbendRange);          store16(&pData[8], PitchbendRange);
2820          const uint8_t dimkeystart = (PianoReleaseMode) ? 0x01 : 0x00 |          const uint8_t dimkeystart = (PianoReleaseMode ? 0x01 : 0x00) |
2821                                      DimensionKeyRange.low << 1;                                      DimensionKeyRange.low << 1;
2822          pData[10] = dimkeystart;          pData[10] = dimkeystart;
2823          pData[11] = DimensionKeyRange.high;          pData[11] = DimensionKeyRange.high;
# Line 2903  namespace { Line 2928  namespace {
2928          }          }
2929          RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL);          RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL);
2930          if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL);          if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL);
2931    
2932            if (!pNameChunk && pFile->pVersion && pFile->pVersion->major == 3) {
2933                // v3 has a fixed list of 128 strings, find a free one
2934                for (RIFF::Chunk* ck = _3gnl->GetFirstSubChunk() ; ck ; ck = _3gnl->GetNextSubChunk()) {
2935                    if (strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) {
2936                        pNameChunk = ck;
2937                        break;
2938                    }
2939                }
2940            }
2941    
2942          // now store the name of this group as <3gnm> chunk as subchunk of the <3gnl> list chunk          // now store the name of this group as <3gnm> chunk as subchunk of the <3gnl> list chunk
2943          ::SaveString(CHUNK_ID_3GNM, pNameChunk, _3gnl, Name, String("Unnamed Group"), true, 64);          ::SaveString(CHUNK_ID_3GNM, pNameChunk, _3gnl, Name, String("Unnamed Group"), true, 64);
2944      }      }
# Line 3010  namespace { Line 3046  namespace {
3046      };      };
3047    
3048      File::File() : DLS::File() {      File::File() : DLS::File() {
3049            *pVersion = VERSION_3;
3050          pGroups = NULL;          pGroups = NULL;
3051          pInfo->FixedStringLengths = FixedStringLengths;          pInfo->FixedStringLengths = FixedStringLengths;
3052          pInfo->ArchivalLocation = String(256, ' ');          pInfo->ArchivalLocation = String(256, ' ');
# Line 3078  namespace { Line 3115  namespace {
3115    
3116      /** @brief Delete a sample.      /** @brief Delete a sample.
3117       *       *
3118       * This will delete the given Sample object from the gig file. You have       * This will delete the given Sample object from the gig file. Any
3119       * to call Save() to make this persistent to the file.       * references to this sample from Regions and DimensionRegions will be
3120         * removed. You have to call Save() to make this persistent to the file.
3121       *       *
3122       * @param pSample - sample to delete       * @param pSample - sample to delete
3123       * @throws gig::Exception if given sample could not be found       * @throws gig::Exception if given sample could not be found
# Line 3091  namespace { Line 3129  namespace {
3129          if (SamplesIterator != pSamples->end() && *SamplesIterator == pSample) ++SamplesIterator; // avoid iterator invalidation          if (SamplesIterator != pSamples->end() && *SamplesIterator == pSample) ++SamplesIterator; // avoid iterator invalidation
3130          pSamples->erase(iter);          pSamples->erase(iter);
3131          delete pSample;          delete pSample;
3132    
3133            // remove all references to the sample
3134            for (Instrument* instrument = GetFirstInstrument() ; instrument ;
3135                 instrument = GetNextInstrument()) {
3136                for (Region* region = instrument->GetFirstRegion() ; region ;
3137                     region = instrument->GetNextRegion()) {
3138    
3139                    if (region->GetSample() == pSample) region->SetSample(NULL);
3140    
3141                    for (int i = 0 ; i < region->DimensionRegions ; i++) {
3142                        gig::DimensionRegion *d = region->pDimensionRegions[i];
3143                        if (d->pSample == pSample) d->pSample = NULL;
3144                    }
3145                }
3146            }
3147      }      }
3148    
3149      void File::LoadSamples() {      void File::LoadSamples() {
# Line 3395  namespace { Line 3448  namespace {
3448                  RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk();                  RIFF::Chunk* ck = lst3gnl->GetFirstSubChunk();
3449                  while (ck) {                  while (ck) {
3450                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {                      if (ck->GetChunkID() == CHUNK_ID_3GNM) {
3451                            if (pVersion && pVersion->major == 3 &&
3452                                strcmp(static_cast<char*>(ck->LoadChunkData()), "") == 0) break;
3453    
3454                          pGroups->push_back(new Group(this, ck));                          pGroups->push_back(new Group(this, ck));
3455                      }                      }
3456                      ck = lst3gnl->GetNextSubChunk();                      ck = lst3gnl->GetNextSubChunk();
# Line 3444  namespace { Line 3500  namespace {
3500              for (; iter != end; ++iter) {              for (; iter != end; ++iter) {
3501                  (*iter)->UpdateChunks();                  (*iter)->UpdateChunks();
3502              }              }
3503    
3504                // v3: make sure the file has 128 3gnm chunks
3505                if (pVersion && pVersion->major == 3) {
3506                    RIFF::List* _3gnl = pRIFF->GetSubList(LIST_TYPE_3GRI)->GetSubList(LIST_TYPE_3GNL);
3507                    RIFF::Chunk* _3gnm = _3gnl->GetFirstSubChunk();
3508                    for (int i = 0 ; i < 128 ; i++) {
3509                        if (i >= pGroups->size()) ::SaveString(CHUNK_ID_3GNM, _3gnm, _3gnl, "", "", true, 64);
3510                        if (_3gnm) _3gnm = _3gnl->GetNextSubChunk();
3511                    }
3512                }
3513          }          }
3514    
3515          // update einf chunk          // update einf chunk
# Line 3487  namespace { Line 3553  namespace {
3553              int totnbusedchannels = 0;              int totnbusedchannels = 0;
3554              int totnbregions = 0;              int totnbregions = 0;
3555              int totnbdimregions = 0;              int totnbdimregions = 0;
3556                int totnbloops = 0;
3557              int instrumentIdx = 0;              int instrumentIdx = 0;
3558    
3559              memset(&pData[48], 0, sublen - 48);              memset(&pData[48], 0, sublen - 48);
# Line 3496  namespace { Line 3563  namespace {
3563                  int nbusedsamples = 0;                  int nbusedsamples = 0;
3564                  int nbusedchannels = 0;                  int nbusedchannels = 0;
3565                  int nbdimregions = 0;                  int nbdimregions = 0;
3566                    int nbloops = 0;
3567    
3568                  memset(&pData[(instrumentIdx + 1) * sublen + 48], 0, sublen - 48);                  memset(&pData[(instrumentIdx + 1) * sublen + 48], 0, sublen - 48);
3569    
# Line 3519  namespace { Line 3587  namespace {
3587                                  }                                  }
3588                              }                              }
3589                          }                          }
3590                            if (d->SampleLoops) nbloops++;
3591                      }                      }
3592                      nbdimregions += region->DimensionRegions;                      nbdimregions += region->DimensionRegions;
3593                  }                  }
# Line 3529  namespace { Line 3598  namespace {
3598                  store32(&pData[(instrumentIdx + 1) * sublen + 12], 1);                  store32(&pData[(instrumentIdx + 1) * sublen + 12], 1);
3599                  store32(&pData[(instrumentIdx + 1) * sublen + 16], instrument->Regions);                  store32(&pData[(instrumentIdx + 1) * sublen + 16], instrument->Regions);
3600                  store32(&pData[(instrumentIdx + 1) * sublen + 20], nbdimregions);                  store32(&pData[(instrumentIdx + 1) * sublen + 20], nbdimregions);
3601                  // next 12 bytes unknown                  store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops);
3602                    // next 8 bytes unknown
3603                  store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx);                  store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx);
3604                  store32(&pData[(instrumentIdx + 1) * sublen + 40], pSamples->size());                  store32(&pData[(instrumentIdx + 1) * sublen + 40], pSamples->size());
3605                  // next 4 bytes unknown                  // next 4 bytes unknown
3606    
3607                  totnbregions += instrument->Regions;                  totnbregions += instrument->Regions;
3608                  totnbdimregions += nbdimregions;                  totnbdimregions += nbdimregions;
3609                    totnbloops += nbloops;
3610                  instrumentIdx++;                  instrumentIdx++;
3611              }              }
3612              // first 4 bytes unknown - sometimes 0, sometimes length of einf part              // first 4 bytes unknown - sometimes 0, sometimes length of einf part
# Line 3545  namespace { Line 3616  namespace {
3616              store32(&pData[12], Instruments);              store32(&pData[12], Instruments);
3617              store32(&pData[16], totnbregions);              store32(&pData[16], totnbregions);
3618              store32(&pData[20], totnbdimregions);              store32(&pData[20], totnbdimregions);
3619              // next 12 bytes unknown              store32(&pData[24], totnbloops);
3620              // next 4 bytes unknown, always 0?              // next 8 bytes unknown
3621                // next 4 bytes unknown, not always 0
3622              store32(&pData[40], pSamples->size());              store32(&pData[40], pSamples->size());
3623              // next 4 bytes unknown              // next 4 bytes unknown
3624          }          }
# Line 3563  namespace { Line 3635  namespace {
3635          } else if (newFile) {          } else if (newFile) {
3636              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);              _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8);
3637              _3crc->LoadChunkData();              _3crc->LoadChunkData();
3638    
3639                // the order of einf and 3crc is not the same in v2 and v3
3640                if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf);
3641          }          }
3642      }      }
3643    
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