--- libgig/trunk/src/gig.cpp 2006/10/29 17:57:20 930 +++ libgig/trunk/src/gig.cpp 2007/07/29 10:51:09 1264 @@ -1,8 +1,8 @@ /*************************************************************************** * * - * libgig - C++ cross-platform Gigasampler format file loader library * + * libgig - C++ cross-platform Gigasampler format file access library * * * - * Copyright (C) 2003-2006 by Christian Schoenebeck * + * Copyright (C) 2003-2007 by Christian Schoenebeck * * * * * * This library is free software; you can redistribute it and/or modify * @@ -254,6 +254,50 @@ } + +// *************** Other Internal functions *************** +// * + + static split_type_t __resolveSplitType(dimension_t dimension) { + return ( + dimension == dimension_layer || + dimension == dimension_samplechannel || + dimension == dimension_releasetrigger || + dimension == dimension_keyboard || + dimension == dimension_roundrobin || + dimension == dimension_random || + dimension == dimension_smartmidi || + dimension == dimension_roundrobinkeyboard + ) ? split_type_bit : split_type_normal; + } + + static int __resolveZoneSize(dimension_def_t& dimension_definition) { + return (dimension_definition.split_type == split_type_normal) + ? int(128.0 / dimension_definition.zones) : 0; + } + + + +// *************** CRC *************** +// * + + const uint32_t* CRC::table(initTable()); + + uint32_t* CRC::initTable() { + uint32_t* res = new uint32_t[256]; + + for (int i = 0 ; i < 256 ; i++) { + uint32_t c = i; + for (int j = 0 ; j < 8 ; j++) { + c = (c & 1) ? 0xedb88320 ^ (c >> 1) : c >> 1; + } + res[i] = c; + } + return res; + } + + + // *************** Sample *************** // * @@ -279,7 +323,11 @@ * is located, 0 otherwise */ Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset, unsigned long fileNo) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { - pInfo->UseFixedLengthStrings = true; + static const DLS::Info::FixedStringLength fixedStringLengths[] = { + { CHUNK_ID_INAM, 64 }, + { 0, 0 } + }; + pInfo->FixedStringLengths = fixedStringLengths; Instances++; FileNo = fileNo; @@ -314,11 +362,13 @@ Manufacturer = 0; Product = 0; SamplePeriod = uint32_t(1000000000.0 / SamplesPerSecond + 0.5); - MIDIUnityNote = 64; + MIDIUnityNote = 60; FineTune = 0; + SMPTEFormat = smpte_format_no_offset; SMPTEOffset = 0; Loops = 0; LoopID = 0; + LoopType = loop_type_normal; LoopStart = 0; LoopEnd = 0; LoopFraction = 0; @@ -364,7 +414,7 @@ * Usually there is absolutely no need to call this method explicitly. * It will be called automatically when File::Save() was called. * - * @throws DLS::Exception if FormatTag != WAVE_FORMAT_PCM or no sample data + * @throws DLS::Exception if FormatTag != DLS_WAVE_FORMAT_PCM or no sample data * was provided yet * @throws gig::Exception if there is any invalid sample setting */ @@ -374,27 +424,30 @@ // make sure 'smpl' chunk exists pCkSmpl = pWaveList->GetSubChunk(CHUNK_ID_SMPL); - if (!pCkSmpl) pCkSmpl = pWaveList->AddSubChunk(CHUNK_ID_SMPL, 60); + if (!pCkSmpl) { + pCkSmpl = pWaveList->AddSubChunk(CHUNK_ID_SMPL, 60); + memset(pCkSmpl->LoadChunkData(), 0, 60); + } // update 'smpl' chunk uint8_t* pData = (uint8_t*) pCkSmpl->LoadChunkData(); SamplePeriod = uint32_t(1000000000.0 / SamplesPerSecond + 0.5); - memcpy(&pData[0], &Manufacturer, 4); - memcpy(&pData[4], &Product, 4); - memcpy(&pData[8], &SamplePeriod, 4); - memcpy(&pData[12], &MIDIUnityNote, 4); - memcpy(&pData[16], &FineTune, 4); - memcpy(&pData[20], &SMPTEFormat, 4); - memcpy(&pData[24], &SMPTEOffset, 4); - memcpy(&pData[28], &Loops, 4); + store32(&pData[0], Manufacturer); + store32(&pData[4], Product); + store32(&pData[8], SamplePeriod); + store32(&pData[12], MIDIUnityNote); + store32(&pData[16], FineTune); + store32(&pData[20], SMPTEFormat); + store32(&pData[24], SMPTEOffset); + store32(&pData[28], Loops); // we skip 'manufByt' for now (4 bytes) - memcpy(&pData[36], &LoopID, 4); - memcpy(&pData[40], &LoopType, 4); - memcpy(&pData[44], &LoopStart, 4); - memcpy(&pData[48], &LoopEnd, 4); - memcpy(&pData[52], &LoopFraction, 4); - memcpy(&pData[56], &LoopPlayCount, 4); + store32(&pData[36], LoopID); + store32(&pData[40], LoopType); + store32(&pData[44], LoopStart); + store32(&pData[48], LoopEnd); + store32(&pData[52], LoopFraction); + store32(&pData[56], LoopPlayCount); // make sure '3gix' chunk exists pCk3gix = pWaveList->GetSubChunk(CHUNK_ID_3GIX); @@ -414,7 +467,7 @@ } // update '3gix' chunk pData = (uint8_t*) pCk3gix->LoadChunkData(); - memcpy(&pData[0], &iSampleGroup, 2); + store16(&pData[0], iSampleGroup); } /// Scans compressed samples for mandatory informations (e.g. actual number of total sample points). @@ -635,13 +688,13 @@ * enlarged samples before calling File::Save() as this might exceed the * current sample's boundary! * - * Also note: only WAVE_FORMAT_PCM is currently supported, that is - * FormatTag must be WAVE_FORMAT_PCM. Trying to resize samples with + * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is + * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with * other formats will fail! * * @param iNewSize - new sample wave data size in sample points (must be * greater than zero) - * @throws DLS::Excecption if FormatTag != WAVE_FORMAT_PCM + * @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM * or if \a iNewSize is less than 1 * @throws gig::Exception if existing sample is compressed * @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, @@ -1099,6 +1152,10 @@ * * Note: there is currently no support for writing compressed samples. * + * For 16 bit samples, the data in the source buffer should be + * int16_t (using native endianness). For 24 bit, the buffer + * should contain three bytes per sample, little-endian. + * * @param pBuffer - source buffer * @param SampleCount - number of sample points to write * @throws DLS::Exception if current sample size is too small @@ -1107,7 +1164,29 @@ */ unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) { if (Compressed) throw gig::Exception("There is no support for writing compressed gig samples (yet)"); - return DLS::Sample::Write(pBuffer, SampleCount); + + // if this is the first write in this sample, reset the + // checksum calculator + if (pCkData->GetPos() == 0) { + crc.reset(); + } + if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small"); + unsigned long res; + if (BitDepth == 24) { + res = pCkData->Write(pBuffer, SampleCount * FrameSize, 1) / FrameSize; + } else { // 16 bit + res = Channels == 2 ? pCkData->Write(pBuffer, SampleCount << 1, 2) >> 1 + : pCkData->Write(pBuffer, SampleCount, 2); + } + crc.update((unsigned char *)pBuffer, SampleCount * FrameSize); + + // if this is the last write, update the checksum chunk in the + // file + if (pCkData->GetPos() == pCkData->GetSize()) { + File* pFile = static_cast(GetParent()); + pFile->SetSampleChecksum(this, crc.getValue()); + } + return res; } /** @@ -1188,7 +1267,9 @@ pSample = NULL; - memcpy(&Crossfade, &SamplerOptions, 4); + if (_3ewl->GetSubChunk(CHUNK_ID_WSMP)) memcpy(&Crossfade, &SamplerOptions, 4); + else memset(&Crossfade, 0, 4); + if (!pVelocityTables) pVelocityTables = new VelocityTableMap; RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); @@ -1338,6 +1419,11 @@ if (lfo3ctrl & 0x40) // bit 6 VCFType = vcf_type_lowpassturbo; } + if (_3ewa->RemainingBytes() >= 8) { + _3ewa->Read(DimensionUpperLimits, 1, 8); + } else { + memset(DimensionUpperLimits, 0, 8); + } } else { // '3ewa' chunk does not exist yet // use default values LFO3Frequency = 1.0; @@ -1347,9 +1433,9 @@ LFO1ControlDepth = 0; LFO3ControlDepth = 0; EG1Attack = 0.0; - EG1Decay1 = 0.0; - EG1Sustain = 0; - EG1Release = 0.0; + EG1Decay1 = 0.005; + EG1Sustain = 1000; + EG1Release = 0.3; EG1Controller.type = eg1_ctrl_t::type_none; EG1Controller.controller_number = 0; EG1ControllerInvert = false; @@ -1364,18 +1450,18 @@ EG2ControllerReleaseInfluence = 0; LFO1Frequency = 1.0; EG2Attack = 0.0; - EG2Decay1 = 0.0; - EG2Sustain = 0; - EG2Release = 0.0; + EG2Decay1 = 0.005; + EG2Sustain = 1000; + EG2Release = 0.3; LFO2ControlDepth = 0; LFO2Frequency = 1.0; LFO2InternalDepth = 0; EG1Decay2 = 0.0; - EG1InfiniteSustain = false; - EG1PreAttack = 1000; + EG1InfiniteSustain = true; + EG1PreAttack = 0; EG2Decay2 = 0.0; - EG2InfiniteSustain = false; - EG2PreAttack = 1000; + EG2InfiniteSustain = true; + EG2PreAttack = 0; VelocityResponseCurve = curve_type_nonlinear; VelocityResponseDepth = 3; ReleaseVelocityResponseCurve = curve_type_nonlinear; @@ -1418,6 +1504,7 @@ VCFVelocityDynamicRange = 0x04; VCFVelocityCurve = curve_type_linear; VCFType = vcf_type_lowpass; + memset(DimensionUpperLimits, 127, 8); } pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve, @@ -1463,114 +1550,129 @@ * It will be called automatically when File::Save() was called. */ void DimensionRegion::UpdateChunks() { + // check if wsmp is going to be created by + // DLS::Sampler::UpdateChunks + bool wsmp_created = !pParentList->GetSubChunk(CHUNK_ID_WSMP); + // first update base class's chunk DLS::Sampler::UpdateChunks(); + RIFF::Chunk* wsmp = pParentList->GetSubChunk(CHUNK_ID_WSMP); + uint8_t* pData = (uint8_t*) wsmp->LoadChunkData(); + pData[12] = Crossfade.in_start; + pData[13] = Crossfade.in_end; + pData[14] = Crossfade.out_start; + pData[15] = Crossfade.out_end; + // make sure '3ewa' chunk exists RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA); if (!_3ewa) _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, 140); - uint8_t* pData = (uint8_t*) _3ewa->LoadChunkData(); + else if (wsmp_created) { + // make sure the chunk order is: wsmp, 3ewa + pParentList->MoveSubChunk(_3ewa, 0); + } + pData = (uint8_t*) _3ewa->LoadChunkData(); // update '3ewa' chunk with DimensionRegion's current settings - const uint32_t unknown = _3ewa->GetSize(); // unknown, always chunk size ? - memcpy(&pData[0], &unknown, 4); + const uint32_t chunksize = _3ewa->GetNewSize(); + store32(&pData[0], chunksize); // unknown, always chunk size? const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); - memcpy(&pData[4], &lfo3freq, 4); + store32(&pData[4], lfo3freq); const int32_t eg3attack = (int32_t) GIG_EXP_ENCODE(EG3Attack); - memcpy(&pData[8], &eg3attack, 4); + store32(&pData[8], eg3attack); // next 2 bytes unknown - memcpy(&pData[14], &LFO1InternalDepth, 2); + store16(&pData[14], LFO1InternalDepth); // next 2 bytes unknown - memcpy(&pData[18], &LFO3InternalDepth, 2); + store16(&pData[18], LFO3InternalDepth); // next 2 bytes unknown - memcpy(&pData[22], &LFO1ControlDepth, 2); + store16(&pData[22], LFO1ControlDepth); // next 2 bytes unknown - memcpy(&pData[26], &LFO3ControlDepth, 2); + store16(&pData[26], LFO3ControlDepth); const int32_t eg1attack = (int32_t) GIG_EXP_ENCODE(EG1Attack); - memcpy(&pData[28], &eg1attack, 4); + store32(&pData[28], eg1attack); const int32_t eg1decay1 = (int32_t) GIG_EXP_ENCODE(EG1Decay1); - memcpy(&pData[32], &eg1decay1, 4); + store32(&pData[32], eg1decay1); // next 2 bytes unknown - memcpy(&pData[38], &EG1Sustain, 2); + store16(&pData[38], EG1Sustain); const int32_t eg1release = (int32_t) GIG_EXP_ENCODE(EG1Release); - memcpy(&pData[40], &eg1release, 4); + store32(&pData[40], eg1release); const uint8_t eg1ctl = (uint8_t) EncodeLeverageController(EG1Controller); - memcpy(&pData[44], &eg1ctl, 1); + pData[44] = eg1ctl; const uint8_t eg1ctrloptions = (EG1ControllerInvert) ? 0x01 : 0x00 | GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG1ControllerAttackInfluence) | GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG1ControllerDecayInfluence) | GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG1ControllerReleaseInfluence); - memcpy(&pData[45], &eg1ctrloptions, 1); + pData[45] = eg1ctrloptions; const uint8_t eg2ctl = (uint8_t) EncodeLeverageController(EG2Controller); - memcpy(&pData[46], &eg2ctl, 1); + pData[46] = eg2ctl; const uint8_t eg2ctrloptions = (EG2ControllerInvert) ? 0x01 : 0x00 | GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG2ControllerAttackInfluence) | GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG2ControllerDecayInfluence) | GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG2ControllerReleaseInfluence); - memcpy(&pData[47], &eg2ctrloptions, 1); + pData[47] = eg2ctrloptions; const int32_t lfo1freq = (int32_t) GIG_EXP_ENCODE(LFO1Frequency); - memcpy(&pData[48], &lfo1freq, 4); + store32(&pData[48], lfo1freq); const int32_t eg2attack = (int32_t) GIG_EXP_ENCODE(EG2Attack); - memcpy(&pData[52], &eg2attack, 4); + store32(&pData[52], eg2attack); const int32_t eg2decay1 = (int32_t) GIG_EXP_ENCODE(EG2Decay1); - memcpy(&pData[56], &eg2decay1, 4); + store32(&pData[56], eg2decay1); // next 2 bytes unknown - memcpy(&pData[62], &EG2Sustain, 2); + store16(&pData[62], EG2Sustain); const int32_t eg2release = (int32_t) GIG_EXP_ENCODE(EG2Release); - memcpy(&pData[64], &eg2release, 4); + store32(&pData[64], eg2release); // next 2 bytes unknown - memcpy(&pData[70], &LFO2ControlDepth, 2); + store16(&pData[70], LFO2ControlDepth); const int32_t lfo2freq = (int32_t) GIG_EXP_ENCODE(LFO2Frequency); - memcpy(&pData[72], &lfo2freq, 4); + store32(&pData[72], lfo2freq); // next 2 bytes unknown - memcpy(&pData[78], &LFO2InternalDepth, 2); + store16(&pData[78], LFO2InternalDepth); const int32_t eg1decay2 = (int32_t) (EG1InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG1Decay2); - memcpy(&pData[80], &eg1decay2, 4); + store32(&pData[80], eg1decay2); // next 2 bytes unknown - memcpy(&pData[86], &EG1PreAttack, 2); + store16(&pData[86], EG1PreAttack); const int32_t eg2decay2 = (int32_t) (EG2InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG2Decay2); - memcpy(&pData[88], &eg2decay2, 4); + store32(&pData[88], eg2decay2); // next 2 bytes unknown - memcpy(&pData[94], &EG2PreAttack, 2); + store16(&pData[94], EG2PreAttack); { if (VelocityResponseDepth > 4) throw Exception("VelocityResponseDepth must be between 0 and 4"); @@ -1588,7 +1690,7 @@ default: throw Exception("Could not update DimensionRegion's chunk, unknown VelocityResponseCurve selected"); } - memcpy(&pData[96], &velocityresponse, 1); + pData[96] = velocityresponse; } { @@ -1607,16 +1709,16 @@ default: throw Exception("Could not update DimensionRegion's chunk, unknown ReleaseVelocityResponseCurve selected"); } - memcpy(&pData[97], &releasevelocityresponse, 1); + pData[97] = releasevelocityresponse; } - memcpy(&pData[98], &VelocityResponseCurveScaling, 1); + pData[98] = VelocityResponseCurveScaling; - memcpy(&pData[99], &AttenuationControllerThreshold, 1); + pData[99] = AttenuationControllerThreshold; // next 4 bytes unknown - memcpy(&pData[104], &SampleStartOffset, 2); + store16(&pData[104], SampleStartOffset); // next 2 bytes unknown @@ -1635,14 +1737,14 @@ default: throw Exception("Could not update DimensionRegion's chunk, unknown DimensionBypass selected"); } - memcpy(&pData[108], &pitchTrackDimensionBypass, 1); + pData[108] = pitchTrackDimensionBypass; } const uint8_t pan = (Pan >= 0) ? Pan : ((-Pan) + 63); // signed 8 bit -> signed 7 bit - memcpy(&pData[109], &pan, 1); + pData[109] = pan; const uint8_t selfmask = (SelfMask) ? 0x01 : 0x00; - memcpy(&pData[110], &selfmask, 1); + pData[110] = selfmask; // next byte unknown @@ -1651,18 +1753,18 @@ if (LFO3Sync) lfo3ctrl |= 0x20; // bit 5 if (InvertAttenuationController) lfo3ctrl |= 0x80; // bit 7 if (VCFType == vcf_type_lowpassturbo) lfo3ctrl |= 0x40; // bit 6 - memcpy(&pData[112], &lfo3ctrl, 1); + pData[112] = lfo3ctrl; } const uint8_t attenctl = EncodeLeverageController(AttenuationController); - memcpy(&pData[113], &attenctl, 1); + pData[113] = attenctl; { uint8_t lfo2ctrl = LFO2Controller & 0x07; // lower 3 bits if (LFO2FlipPhase) lfo2ctrl |= 0x80; // bit 7 if (LFO2Sync) lfo2ctrl |= 0x20; // bit 5 if (VCFResonanceController != vcf_res_ctrl_none) lfo2ctrl |= 0x40; // bit 6 - memcpy(&pData[114], &lfo2ctrl, 1); + pData[114] = lfo2ctrl; } { @@ -1671,64 +1773,68 @@ if (LFO1Sync) lfo1ctrl |= 0x40; // bit 6 if (VCFResonanceController != vcf_res_ctrl_none) lfo1ctrl |= GIG_VCF_RESONANCE_CTRL_ENCODE(VCFResonanceController); - memcpy(&pData[115], &lfo1ctrl, 1); + pData[115] = lfo1ctrl; } const uint16_t eg3depth = (EG3Depth >= 0) ? EG3Depth : uint16_t(((-EG3Depth) - 1) ^ 0xffff); /* binary complementary for negatives */ - memcpy(&pData[116], &eg3depth, 1); + pData[116] = eg3depth; // next 2 bytes unknown const uint8_t channeloffset = ChannelOffset * 4; - memcpy(&pData[120], &channeloffset, 1); + pData[120] = channeloffset; { uint8_t regoptions = 0; if (MSDecode) regoptions |= 0x01; // bit 0 if (SustainDefeat) regoptions |= 0x02; // bit 1 - memcpy(&pData[121], ®options, 1); + pData[121] = regoptions; } // next 2 bytes unknown - memcpy(&pData[124], &VelocityUpperLimit, 1); + pData[124] = VelocityUpperLimit; // next 3 bytes unknown - memcpy(&pData[128], &ReleaseTriggerDecay, 1); + pData[128] = ReleaseTriggerDecay; // next 2 bytes unknown const uint8_t eg1hold = (EG1Hold) ? 0x80 : 0x00; // bit 7 - memcpy(&pData[131], &eg1hold, 1); + pData[131] = eg1hold; const uint8_t vcfcutoff = (VCFEnabled) ? 0x80 : 0x00 | /* bit 7 */ (VCFCutoff & 0x7f); /* lower 7 bits */ - memcpy(&pData[132], &vcfcutoff, 1); + pData[132] = vcfcutoff; - memcpy(&pData[133], &VCFCutoffController, 1); + pData[133] = VCFCutoffController; const uint8_t vcfvelscale = (VCFCutoffControllerInvert) ? 0x80 : 0x00 | /* bit 7 */ (VCFVelocityScale & 0x7f); /* lower 7 bits */ - memcpy(&pData[134], &vcfvelscale, 1); + pData[134] = vcfvelscale; // next byte unknown const uint8_t vcfresonance = (VCFResonanceDynamic) ? 0x00 : 0x80 | /* bit 7 */ (VCFResonance & 0x7f); /* lower 7 bits */ - memcpy(&pData[136], &vcfresonance, 1); + pData[136] = vcfresonance; const uint8_t vcfbreakpoint = (VCFKeyboardTracking) ? 0x80 : 0x00 | /* bit 7 */ (VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */ - memcpy(&pData[137], &vcfbreakpoint, 1); + pData[137] = vcfbreakpoint; const uint8_t vcfvelocity = VCFVelocityDynamicRange % 5 | VCFVelocityCurve * 5; - memcpy(&pData[138], &vcfvelocity, 1); + pData[138] = vcfvelocity; const uint8_t vcftype = (VCFType == vcf_type_lowpassturbo) ? vcf_type_lowpass : VCFType; - memcpy(&pData[139], &vcftype, 1); + pData[139] = vcftype; + + if (chunksize >= 148) { + memcpy(&pData[140], DimensionUpperLimits, 8); + } } // get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet @@ -1953,6 +2059,7 @@ default: throw gig::Exception("leverage controller number is not supported by the gig format"); } + break; default: throw gig::Exception("Unknown leverage controller type."); } @@ -2070,8 +2177,6 @@ // * Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : DLS::Region((DLS::Instrument*) pInstrument, rgnList) { - pInfo->UseFixedLengthStrings = true; - // Initialization Dimensions = 0; for (int i = 0; i < 256; i++) { @@ -2091,8 +2196,8 @@ for (int i = 0; i < dimensionBits; i++) { dimension_t dimension = static_cast(_3lnk->ReadUint8()); uint8_t bits = _3lnk->ReadUint8(); - _3lnk->ReadUint8(); // probably the position of the dimension - _3lnk->ReadUint8(); // unknown + _3lnk->ReadUint8(); // bit position of the dimension (bits[0] + bits[1] + ... + bits[i-1]) + _3lnk->ReadUint8(); // (1 << bit position of next dimension) - (1 << bit position of this dimension) uint8_t zones = _3lnk->ReadUint8(); // new for v3: number of zones doesn't have to be == pow(2,bits) if (dimension == dimension_none) { // inactive dimension pDimensionDefinitions[i].dimension = dimension_none; @@ -2105,16 +2210,8 @@ pDimensionDefinitions[i].dimension = dimension; pDimensionDefinitions[i].bits = bits; pDimensionDefinitions[i].zones = zones ? zones : 0x01 << bits; // = pow(2,bits) - pDimensionDefinitions[i].split_type = (dimension == dimension_layer || - dimension == dimension_samplechannel || - dimension == dimension_releasetrigger || - dimension == dimension_keyboard || - dimension == dimension_roundrobin || - dimension == dimension_random) ? split_type_bit - : split_type_normal; - pDimensionDefinitions[i].zone_size = - (pDimensionDefinitions[i].split_type == split_type_normal) ? 128.0 / pDimensionDefinitions[i].zones - : 0; + pDimensionDefinitions[i].split_type = __resolveSplitType(dimension); + pDimensionDefinitions[i].zone_size = __resolveZoneSize(pDimensionDefinitions[i]); Dimensions++; // if this is a layer dimension, remember the amount of layers @@ -2140,6 +2237,13 @@ if (file->pWavePoolTable) pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); } GetSample(); // load global region sample reference + } else { + DimensionRegions = 0; + for (int i = 0 ; i < 8 ; i++) { + pDimensionDefinitions[i].dimension = dimension_none; + pDimensionDefinitions[i].bits = 0; + pDimensionDefinitions[i].zones = 0; + } } // make sure there is at least one dimension region @@ -2162,38 +2266,62 @@ * @throws gig::Exception if samples cannot be dereferenced */ void Region::UpdateChunks() { + // in the gig format we don't care about the Region's sample reference + // but we still have to provide some existing one to not corrupt the + // file, so to avoid the latter we simply always assign the sample of + // the first dimension region of this region + pSample = pDimensionRegions[0]->pSample; + // first update base class's chunks DLS::Region::UpdateChunks(); + File* pFile = (File*) GetParent()->GetParent(); + bool version3 = pFile->pVersion && pFile->pVersion->major == 3; + // update dimension region's chunks for (int i = 0; i < DimensionRegions; i++) { - pDimensionRegions[i]->UpdateChunks(); + DimensionRegion* d = pDimensionRegions[i]; + + // make sure '3ewa' chunk exists (we need to this before + // calling DimensionRegion::UpdateChunks, as + // DimensionRegion doesn't know which file version it is) + RIFF::Chunk* _3ewa = d->pParentList->GetSubChunk(CHUNK_ID_3EWA); + if (!_3ewa) d->pParentList->AddSubChunk(CHUNK_ID_3EWA, version3 ? 148 : 140); + + d->UpdateChunks(); } - File* pFile = (File*) GetParent()->GetParent(); - const int iMaxDimensions = (pFile->pVersion && pFile->pVersion->major == 3) ? 8 : 5; - const int iMaxDimensionRegions = (pFile->pVersion && pFile->pVersion->major == 3) ? 256 : 32; + const int iMaxDimensions = version3 ? 8 : 5; + const int iMaxDimensionRegions = version3 ? 256 : 32; // make sure '3lnk' chunk exists RIFF::Chunk* _3lnk = pCkRegion->GetSubChunk(CHUNK_ID_3LNK); if (!_3lnk) { - const int _3lnkChunkSize = (pFile->pVersion && pFile->pVersion->major == 3) ? 1092 : 172; + const int _3lnkChunkSize = version3 ? 1092 : 172; _3lnk = pCkRegion->AddSubChunk(CHUNK_ID_3LNK, _3lnkChunkSize); + memset(_3lnk->LoadChunkData(), 0, _3lnkChunkSize); + + // move 3prg to last position + pCkRegion->MoveSubChunk(pCkRegion->GetSubList(LIST_TYPE_3PRG), 0); } // update dimension definitions in '3lnk' chunk uint8_t* pData = (uint8_t*) _3lnk->LoadChunkData(); - memcpy(&pData[0], &DimensionRegions, 4); + store32(&pData[0], DimensionRegions); + int shift = 0; for (int i = 0; i < iMaxDimensions; i++) { pData[4 + i * 8] = (uint8_t) pDimensionDefinitions[i].dimension; pData[5 + i * 8] = pDimensionDefinitions[i].bits; - // next 2 bytes unknown + pData[6 + i * 8] = shift; + pData[7 + i * 8] = (1 << (shift + pDimensionDefinitions[i].bits)) - (1 << shift); pData[8 + i * 8] = pDimensionDefinitions[i].zones; - // next 3 bytes unknown + // next 3 bytes unknown, always zero? + + shift += pDimensionDefinitions[i].bits; } // update wave pool table in '3lnk' chunk - const int iWavePoolOffset = (pFile->pVersion && pFile->pVersion->major == 3) ? 68 : 44; + const int iWavePoolOffset = version3 ? 68 : 44; for (uint i = 0; i < iMaxDimensionRegions; i++) { int iWaveIndex = -1; if (i < DimensionRegions) { @@ -2208,7 +2336,7 @@ } if (iWaveIndex < 0) throw gig::Exception("Could not update gig::Region, could not find DimensionRegion's sample"); } - memcpy(&pData[iWavePoolOffset + i * 4], &iWaveIndex, 4); + store32(&pData[iWavePoolOffset + i * 4], iWaveIndex); } } @@ -2248,7 +2376,8 @@ int dim[8] = { 0 }; for (int i = 0 ; i < DimensionRegions ; i++) { - if (pDimensionRegions[i]->VelocityUpperLimit) { + if (pDimensionRegions[i]->DimensionUpperLimits[veldim] || + pDimensionRegions[i]->VelocityUpperLimit) { // create the velocity table uint8_t* table = pDimensionRegions[i]->VelocityTable; if (!table) { @@ -2257,10 +2386,18 @@ } int tableidx = 0; int velocityZone = 0; - for (int k = i ; k < end ; k += step) { - DimensionRegion *d = pDimensionRegions[k]; - for (; tableidx <= d->VelocityUpperLimit ; tableidx++) table[tableidx] = velocityZone; - velocityZone++; + if (pDimensionRegions[i]->DimensionUpperLimits[veldim]) { // gig3 + for (int k = i ; k < end ; k += step) { + DimensionRegion *d = pDimensionRegions[k]; + for (; tableidx <= d->DimensionUpperLimits[veldim] ; tableidx++) table[tableidx] = velocityZone; + velocityZone++; + } + } else { // gig2 + for (int k = i ; k < end ; k += step) { + DimensionRegion *d = pDimensionRegions[k]; + for (; tableidx <= d->VelocityUpperLimit ; tableidx++) table[tableidx] = velocityZone; + velocityZone++; + } } } else { if (pDimensionRegions[i]->VelocityTable) { @@ -2327,14 +2464,34 @@ // assign definition of new dimension pDimensionDefinitions[Dimensions] = *pDimDef; + // auto correct certain dimension definition fields (where possible) + pDimensionDefinitions[Dimensions].split_type = + __resolveSplitType(pDimensionDefinitions[Dimensions].dimension); + pDimensionDefinitions[Dimensions].zone_size = + __resolveZoneSize(pDimensionDefinitions[Dimensions]); + // create new dimension region(s) for this new dimension for (int i = 1 << iCurrentBits; i < 1 << iNewBits; i++) { //TODO: maybe we should copy existing dimension regions if possible instead of simply creating new ones with default values - RIFF::List* pNewDimRgnListChunk = pCkRegion->AddSubList(LIST_TYPE_3EWL); + RIFF::List* _3prg = pCkRegion->GetSubList(LIST_TYPE_3PRG); + RIFF::List* pNewDimRgnListChunk = _3prg->AddSubList(LIST_TYPE_3EWL); pDimensionRegions[i] = new DimensionRegion(pNewDimRgnListChunk); + + // copy the upper limits for the other dimensions + memcpy(pDimensionRegions[i]->DimensionUpperLimits, + pDimensionRegions[i & ((1 << iCurrentBits) - 1)]->DimensionUpperLimits, 8); + DimensionRegions++; } + // initialize the upper limits for this dimension + for (int z = 0, j = 0 ; z < pDimDef->zones ; z++, j += 1 << iCurrentBits) { + uint8_t upperLimit = uint8_t((z + 1) * 128.0 / pDimDef->zones - 1); + for (int i = 0 ; i < 1 << iCurrentBits ; i++) { + pDimensionRegions[j + i]->DimensionUpperLimits[Dimensions] = upperLimit; + } + } + Dimensions++; // if this is a layer dimension, update 'Layers' attribute @@ -2375,6 +2532,8 @@ for (int i = iDimensionNr + 1; i < Dimensions; i++) iUpperBits += pDimensionDefinitions[i].bits; + RIFF::List* _3prg = pCkRegion->GetSubList(LIST_TYPE_3PRG); + // delete dimension regions which belong to the given dimension // (that is where the dimension's bit > 0) for (int iUpperBit = 0; iUpperBit < 1 << iUpperBits; iUpperBit++) { @@ -2383,6 +2542,8 @@ int iToDelete = iUpperBit << (pDimensionDefinitions[iDimensionNr].bits + iLowerBits) | iObsoleteBit << iLowerBits | iLowerBit; + + _3prg->DeleteSubChunk(pDimensionRegions[iToDelete]->pParentList); delete pDimensionRegions[iToDelete]; pDimensionRegions[iToDelete] = NULL; DimensionRegions--; @@ -2403,6 +2564,15 @@ } } + // remove the this dimension from the upper limits arrays + for (int j = 0 ; j < 256 && pDimensionRegions[j] ; j++) { + DimensionRegion* d = pDimensionRegions[j]; + for (int i = iDimensionNr + 1; i < Dimensions; i++) { + d->DimensionUpperLimits[i - 1] = d->DimensionUpperLimits[i]; + } + d->DimensionUpperLimits[Dimensions - 1] = 127; + } + // 'remove' dimension definition for (int i = iDimensionNr + 1; i < Dimensions; i++) { pDimensionDefinitions[i - 1] = pDimensionDefinitions[i]; @@ -2455,7 +2625,15 @@ } else { switch (pDimensionDefinitions[i].split_type) { case split_type_normal: - bits = uint8_t(DimValues[i] / pDimensionDefinitions[i].zone_size); + if (pDimensionRegions[0]->DimensionUpperLimits[i]) { + // gig3: all normal dimensions (not just the velocity dimension) have custom zone ranges + for (bits = 0 ; bits < pDimensionDefinitions[i].zones ; bits++) { + if (DimValues[i] <= pDimensionRegions[bits << bitpos]->DimensionUpperLimits[i]) break; + } + } else { + // gig2: evenly sized zones + bits = uint8_t(DimValues[i] / pDimensionDefinitions[i].zone_size); + } break; case split_type_bit: // the value is already the sought dimension bit number const uint8_t limiter_mask = (0xff << pDimensionDefinitions[i].bits) ^ 0xff; @@ -2469,7 +2647,7 @@ DimensionRegion* dimreg = pDimensionRegions[dimregidx]; if (veldim != -1) { // (dimreg is now the dimension region for the lowest velocity) - if (dimreg->VelocityUpperLimit) // custom defined zone ranges + if (dimreg->VelocityTable) // custom defined zone ranges bits = dimreg->VelocityTable[DimValues[veldim]]; else // normal split type bits = uint8_t(DimValues[veldim] / pDimensionDefinitions[veldim].zone_size); @@ -2535,10 +2713,22 @@ // * Instrument::Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress) : DLS::Instrument((DLS::File*)pFile, insList) { - pInfo->UseFixedLengthStrings = true; + static const DLS::Info::FixedStringLength fixedStringLengths[] = { + { CHUNK_ID_INAM, 64 }, + { CHUNK_ID_ISFT, 12 }, + { 0, 0 } + }; + pInfo->FixedStringLengths = fixedStringLengths; // Initialization for (int i = 0; i < 128; i++) RegionKeyTable[i] = NULL; + EffectSend = 0; + Attenuation = 0; + FineTune = 0; + PitchbendRange = 0; + PianoReleaseMode = false; + DimensionKeyRange.low = 0; + DimensionKeyRange.high = 0; // Loading RIFF::List* lart = insList->GetSubList(LIST_TYPE_LART); @@ -2614,17 +2804,24 @@ if (!lart) lart = pCkInstrument->AddSubList(LIST_TYPE_LART); // make sure '3ewg' RIFF chunk exists RIFF::Chunk* _3ewg = lart->GetSubChunk(CHUNK_ID_3EWG); - if (!_3ewg) _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, 12); + if (!_3ewg) { + File* pFile = (File*) GetParent(); + + // 3ewg is bigger in gig3, as it includes the iMIDI rules + int size = (pFile->pVersion && pFile->pVersion->major == 3) ? 16416 : 12; + _3ewg = lart->AddSubChunk(CHUNK_ID_3EWG, size); + memset(_3ewg->LoadChunkData(), 0, size); + } // update '3ewg' RIFF chunk uint8_t* pData = (uint8_t*) _3ewg->LoadChunkData(); - memcpy(&pData[0], &EffectSend, 2); - memcpy(&pData[2], &Attenuation, 4); - memcpy(&pData[6], &FineTune, 2); - memcpy(&pData[8], &PitchbendRange, 2); + store16(&pData[0], EffectSend); + store32(&pData[2], Attenuation); + store16(&pData[6], FineTune); + store16(&pData[8], PitchbendRange); const uint8_t dimkeystart = (PianoReleaseMode) ? 0x01 : 0x00 | DimensionKeyRange.low << 1; - memcpy(&pData[10], &dimkeystart, 1); - memcpy(&pData[11], &DimensionKeyRange.high, 1); + pData[10] = dimkeystart; + pData[11] = DimensionKeyRange.high; } /** @@ -2711,19 +2908,27 @@ } Group::~Group() { + // remove the chunk associated with this group (if any) + if (pNameChunk) pNameChunk->GetParent()->DeleteSubChunk(pNameChunk); } /** @brief Update chunks with current group settings. * - * Apply current Group field values to the respective. You have to call - * File::Save() to make changes persistent. + * Apply current Group field values to the respective chunks. You have + * to call File::Save() to make changes persistent. + * + * Usually there is absolutely no need to call this method explicitly. + * It will be called automatically when File::Save() was called. */ void Group::UpdateChunks() { // make sure <3gri> and <3gnl> list chunks exist RIFF::List* _3gri = pFile->pRIFF->GetSubList(LIST_TYPE_3GRI); - if (!_3gri) _3gri = pFile->pRIFF->AddSubList(LIST_TYPE_3GRI); + if (!_3gri) { + _3gri = pFile->pRIFF->AddSubList(LIST_TYPE_3GRI); + pFile->pRIFF->MoveSubChunk(_3gri, pFile->pRIFF->GetSubChunk(CHUNK_ID_PTBL)); + } RIFF::List* _3gnl = _3gri->GetSubList(LIST_TYPE_3GNL); - if (!_3gnl) _3gnl = pFile->pRIFF->AddSubList(LIST_TYPE_3GNL); + if (!_3gnl) _3gnl = _3gri->AddSubList(LIST_TYPE_3GNL); // now store the name of this group as <3gnm> chunk as subchunk of the <3gnl> list chunk ::SaveString(CHUNK_ID_3GNM, pNameChunk, _3gnl, Name, String("Unnamed Group"), true, 64); } @@ -2799,14 +3004,55 @@ // *************** File *************** // * + // File version 2.0, 1998-06-28 + const DLS::version_t File::VERSION_2 = { + 0, 2, 19980628 & 0xffff, 19980628 >> 16 + }; + + // File version 3.0, 2003-03-31 + const DLS::version_t File::VERSION_3 = { + 0, 3, 20030331 & 0xffff, 20030331 >> 16 + }; + + const DLS::Info::FixedStringLength File::FixedStringLengths[] = { + { CHUNK_ID_IARL, 256 }, + { CHUNK_ID_IART, 128 }, + { CHUNK_ID_ICMS, 128 }, + { CHUNK_ID_ICMT, 1024 }, + { CHUNK_ID_ICOP, 128 }, + { CHUNK_ID_ICRD, 128 }, + { CHUNK_ID_IENG, 128 }, + { CHUNK_ID_IGNR, 128 }, + { CHUNK_ID_IKEY, 128 }, + { CHUNK_ID_IMED, 128 }, + { CHUNK_ID_INAM, 128 }, + { CHUNK_ID_IPRD, 128 }, + { CHUNK_ID_ISBJ, 128 }, + { CHUNK_ID_ISFT, 128 }, + { CHUNK_ID_ISRC, 128 }, + { CHUNK_ID_ISRF, 128 }, + { CHUNK_ID_ITCH, 128 }, + { 0, 0 } + }; + File::File() : DLS::File() { + *pVersion = VERSION_3; pGroups = NULL; - pInfo->UseFixedLengthStrings = true; + pInfo->FixedStringLengths = FixedStringLengths; + pInfo->ArchivalLocation = String(256, ' '); + + // add some mandatory chunks to get the file chunks in right + // order (INFO chunk will be moved to first position later) + pRIFF->AddSubChunk(CHUNK_ID_VERS, 8); + pRIFF->AddSubChunk(CHUNK_ID_COLH, 4); + pRIFF->AddSubChunk(CHUNK_ID_DLID, 16); + + GenerateDLSID(); } File::File(RIFF::File* pRIFF) : DLS::File(pRIFF) { pGroups = NULL; - pInfo->UseFixedLengthStrings = true; + pInfo->FixedStringLengths = FixedStringLengths; } File::~File() { @@ -2848,6 +3094,11 @@ // create new Sample object and its respective 'wave' list chunk RIFF::List* wave = wvpl->AddSubList(LIST_TYPE_WAVE); Sample* pSample = new Sample(this, wave, 0 /*arbitrary value, we update offsets when we save*/); + + // add mandatory chunks to get the chunks in right order + wave->AddSubChunk(CHUNK_ID_FMT, 16); + wave->AddSubList(LIST_TYPE_INFO); + pSamples->push_back(pSample); return pSample; } @@ -2864,6 +3115,7 @@ if (!pSamples || !pSamples->size()) throw gig::Exception("Could not delete sample as there are no samples"); SampleList::iterator iter = find(pSamples->begin(), pSamples->end(), (DLS::Sample*) pSample); if (iter == pSamples->end()) throw gig::Exception("Could not delete sample, could not find given sample"); + if (SamplesIterator != pSamples->end() && *SamplesIterator == pSample) ++SamplesIterator; // avoid iterator invalidation pSamples->erase(iter); delete pSample; } @@ -2875,7 +3127,7 @@ void File::LoadSamples(progress_t* pProgress) { // Groups must be loaded before samples, because samples will try // to resolve the group they belong to - LoadGroups(); + if (!pGroups) LoadGroups(); if (!pSamples) pSamples = new SampleList; @@ -2989,7 +3241,19 @@ __ensureMandatoryChunksExist(); RIFF::List* lstInstruments = pRIFF->GetSubList(LIST_TYPE_LINS); RIFF::List* lstInstr = lstInstruments->AddSubList(LIST_TYPE_INS); + + // add mandatory chunks to get the chunks in right order + lstInstr->AddSubList(LIST_TYPE_INFO); + lstInstr->AddSubChunk(CHUNK_ID_DLID, 16); + Instrument* pInstrument = new Instrument(this, lstInstr); + pInstrument->GenerateDLSID(); + + lstInstr->AddSubChunk(CHUNK_ID_INSH, 12); + + // this string is needed for the gig to be loadable in GSt: + pInstrument->pInfo->Software = "Endless Wave"; + pInstruments->push_back(pInstrument); return pInstrument; } @@ -3000,7 +3264,7 @@ * have to call Save() to make this persistent to the file. * * @param pInstrument - instrument to delete - * @throws gig::Excption if given instrument could not be found + * @throws gig::Exception if given instrument could not be found */ void File::DeleteInstrument(Instrument* pInstrument) { if (!pInstruments) throw gig::Exception("Could not delete instrument as there are no instruments"); @@ -3040,6 +3304,32 @@ } } + /// Updates the 3crc chunk with the checksum of a sample. The + /// update is done directly to disk, as this method is called + /// after File::Save() + void File::SetSampleChecksum(Sample* pSample, uint32_t crc) { + RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); + if (!_3crc) return; + + // get the index of the sample + int iWaveIndex = -1; + File::SampleList::iterator iter = pSamples->begin(); + File::SampleList::iterator end = pSamples->end(); + for (int index = 0; iter != end; ++iter, ++index) { + if (*iter == pSample) { + iWaveIndex = index; + break; + } + } + if (iWaveIndex < 0) throw gig::Exception("Could not update crc, could not find sample"); + + // write the CRC-32 checksum to disk + _3crc->SetPos(iWaveIndex * 8); + uint32_t tmp = 1; + _3crc->WriteUint32(&tmp); // unknown, always 1? + _3crc->WriteUint32(&crc); + } + Group* File::GetFirstGroup() { if (!pGroups) LoadGroups(); // there must always be at least one group @@ -3078,11 +3368,44 @@ return pGroup; } + /** @brief Delete a group and its samples. + * + * This will delete the given Group object and all the samples that + * belong to this group from the gig file. You have to call Save() to + * make this persistent to the file. + * + * @param pGroup - group to delete + * @throws gig::Exception if given group could not be found + */ void File::DeleteGroup(Group* pGroup) { if (!pGroups) LoadGroups(); std::list::iterator iter = find(pGroups->begin(), pGroups->end(), pGroup); if (iter == pGroups->end()) throw gig::Exception("Could not delete group, could not find given group"); if (pGroups->size() == 1) throw gig::Exception("Cannot delete group, there must be at least one default group!"); + // delete all members of this group + for (Sample* pSample = pGroup->GetFirstSample(); pSample; pSample = pGroup->GetNextSample()) { + DeleteSample(pSample); + } + // now delete this group object + pGroups->erase(iter); + delete pGroup; + } + + /** @brief Delete a group. + * + * This will delete the given Group object from the gig file. All the + * samples that belong to this group will not be deleted, but instead + * be moved to another group. You have to call Save() to make this + * persistent to the file. + * + * @param pGroup - group to delete + * @throws gig::Exception if given group could not be found + */ + void File::DeleteGroupOnly(Group* pGroup) { + if (!pGroups) LoadGroups(); + std::list::iterator iter = find(pGroups->begin(), pGroups->end(), pGroup); + if (iter == pGroups->end()) throw gig::Exception("Could not delete group, could not find given group"); + if (pGroups->size() == 1) throw gig::Exception("Cannot delete group, there must be at least one default group!"); // move all members of this group to another group pGroup->MoveAll(); pGroups->erase(iter); @@ -3113,6 +3436,172 @@ } } + /** + * Apply all the gig file's current instruments, samples, groups and settings + * to the respective RIFF chunks. You have to call Save() to make changes + * persistent. + * + * Usually there is absolutely no need to call this method explicitly. + * It will be called automatically when File::Save() was called. + * + * @throws Exception - on errors + */ + void File::UpdateChunks() { + bool newFile = pRIFF->GetSubList(LIST_TYPE_INFO) == NULL; + + b64BitWavePoolOffsets = pVersion && pVersion->major == 3; + + // first update base class's chunks + DLS::File::UpdateChunks(); + + if (newFile) { + // INFO was added by Resource::UpdateChunks - make sure it + // is placed first in file + RIFF::Chunk* info = pRIFF->GetSubList(LIST_TYPE_INFO); + RIFF::Chunk* first = pRIFF->GetFirstSubChunk(); + if (first != info) { + pRIFF->MoveSubChunk(info, first); + } + } + + // update group's chunks + if (pGroups) { + std::list::iterator iter = pGroups->begin(); + std::list::iterator end = pGroups->end(); + for (; iter != end; ++iter) { + (*iter)->UpdateChunks(); + } + } + + // update einf chunk + + // The einf chunk contains statistics about the gig file, such + // as the number of regions and samples used by each + // instrument. It is divided in equally sized parts, where the + // first part contains information about the whole gig file, + // and the rest of the parts map to each instrument in the + // file. + // + // At the end of each part there is a bit map of each sample + // in the file, where a set bit means that the sample is used + // by the file/instrument. + // + // Note that there are several fields with unknown use. These + // are set to zero. + + int sublen = pSamples->size() / 8 + 49; + int einfSize = (Instruments + 1) * sublen; + + RIFF::Chunk* einf = pRIFF->GetSubChunk(CHUNK_ID_EINF); + if (einf) { + if (einf->GetSize() != einfSize) { + einf->Resize(einfSize); + memset(einf->LoadChunkData(), 0, einfSize); + } + } else if (newFile) { + einf = pRIFF->AddSubChunk(CHUNK_ID_EINF, einfSize); + } + if (einf) { + uint8_t* pData = (uint8_t*) einf->LoadChunkData(); + + std::map sampleMap; + int sampleIdx = 0; + for (Sample* pSample = GetFirstSample(); pSample; pSample = GetNextSample()) { + sampleMap[pSample] = sampleIdx++; + } + + int totnbusedsamples = 0; + int totnbusedchannels = 0; + int totnbregions = 0; + int totnbdimregions = 0; + int totnbloops = 0; + int instrumentIdx = 0; + + memset(&pData[48], 0, sublen - 48); + + for (Instrument* instrument = GetFirstInstrument() ; instrument ; + instrument = GetNextInstrument()) { + int nbusedsamples = 0; + int nbusedchannels = 0; + int nbdimregions = 0; + int nbloops = 0; + + memset(&pData[(instrumentIdx + 1) * sublen + 48], 0, sublen - 48); + + for (Region* region = instrument->GetFirstRegion() ; region ; + region = instrument->GetNextRegion()) { + for (int i = 0 ; i < region->DimensionRegions ; i++) { + gig::DimensionRegion *d = region->pDimensionRegions[i]; + if (d->pSample) { + int sampleIdx = sampleMap[d->pSample]; + int byte = 48 + sampleIdx / 8; + int bit = 1 << (sampleIdx & 7); + if ((pData[(instrumentIdx + 1) * sublen + byte] & bit) == 0) { + pData[(instrumentIdx + 1) * sublen + byte] |= bit; + nbusedsamples++; + nbusedchannels += d->pSample->Channels; + + if ((pData[byte] & bit) == 0) { + pData[byte] |= bit; + totnbusedsamples++; + totnbusedchannels += d->pSample->Channels; + } + } + } + if (d->SampleLoops) nbloops++; + } + nbdimregions += region->DimensionRegions; + } + // first 4 bytes unknown - sometimes 0, sometimes length of einf part + // store32(&pData[(instrumentIdx + 1) * sublen], sublen); + store32(&pData[(instrumentIdx + 1) * sublen + 4], nbusedchannels); + store32(&pData[(instrumentIdx + 1) * sublen + 8], nbusedsamples); + store32(&pData[(instrumentIdx + 1) * sublen + 12], 1); + store32(&pData[(instrumentIdx + 1) * sublen + 16], instrument->Regions); + store32(&pData[(instrumentIdx + 1) * sublen + 20], nbdimregions); + store32(&pData[(instrumentIdx + 1) * sublen + 24], nbloops); + // next 8 bytes unknown + store32(&pData[(instrumentIdx + 1) * sublen + 36], instrumentIdx); + store32(&pData[(instrumentIdx + 1) * sublen + 40], pSamples->size()); + // next 4 bytes unknown + + totnbregions += instrument->Regions; + totnbdimregions += nbdimregions; + totnbloops += nbloops; + instrumentIdx++; + } + // first 4 bytes unknown - sometimes 0, sometimes length of einf part + // store32(&pData[0], sublen); + store32(&pData[4], totnbusedchannels); + store32(&pData[8], totnbusedsamples); + store32(&pData[12], Instruments); + store32(&pData[16], totnbregions); + store32(&pData[20], totnbdimregions); + store32(&pData[24], totnbloops); + // next 8 bytes unknown + // next 4 bytes unknown, not always 0 + store32(&pData[40], pSamples->size()); + // next 4 bytes unknown + } + + // update 3crc chunk + + // The 3crc chunk contains CRC-32 checksums for the + // samples. The actual checksum values will be filled in + // later, by Sample::Write. + + RIFF::Chunk* _3crc = pRIFF->GetSubChunk(CHUNK_ID_3CRC); + if (_3crc) { + _3crc->Resize(pSamples->size() * 8); + } else if (newFile) { + _3crc = pRIFF->AddSubChunk(CHUNK_ID_3CRC, pSamples->size() * 8); + _3crc->LoadChunkData(); + + // the order of einf and 3crc is not the same in v2 and v3 + if (einf && pVersion && pVersion->major == 3) pRIFF->MoveSubChunk(_3crc, einf); + } + } + // *************** Exception ***************