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authorJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
committerJef <jef@targetspot.com>2024-09-24 08:54:57 -0400
commit20d28e80a5c861a9d5f449ea911ab75b4f37ad0d (patch)
tree12f17f78986871dd2cfb0a56e5e93b545c1ae0d0 /Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp
parent537bcbc86291b32fc04ae4133ce4d7cac8ebe9a7 (diff)
downloadwinamp-20d28e80a5c861a9d5f449ea911ab75b4f37ad0d.tar.gz
Initial community commit
Diffstat (limited to 'Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp')
-rw-r--r--Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp2212
1 files changed, 2212 insertions, 0 deletions
diff --git a/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp b/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp
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+++ b/Src/external_dependencies/openmpt-trunk/soundlib/Dlsbank.cpp
@@ -0,0 +1,2212 @@
+/*
+ * DLSBank.cpp
+ * -----------
+ * Purpose: Sound bank loading.
+ * Notes : Supported sound bank types: DLS (including embedded DLS in MSS & RMI), SF2, SF3 / SF4 (modified SF2 with compressed samples)
+ * Authors: Olivier Lapicque
+ * OpenMPT Devs
+ * The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
+ */
+
+
+#include "stdafx.h"
+#include "Sndfile.h"
+#ifdef MODPLUG_TRACKER
+#include "../mptrack/Mptrack.h"
+#include "../common/mptFileIO.h"
+#endif
+#include "Dlsbank.h"
+#include "Loaders.h"
+#include "SampleCopy.h"
+#include "../common/mptStringBuffer.h"
+#include "../common/FileReader.h"
+#include "openmpt/base/Endian.hpp"
+#include "SampleIO.h"
+#include "mpt/io/base.hpp"
+#include "mpt/io/io.hpp"
+#include "mpt/io/io_stdstream.hpp"
+
+OPENMPT_NAMESPACE_BEGIN
+
+#ifdef MODPLUG_TRACKER
+
+#ifdef MPT_ALL_LOGGING
+#define DLSBANK_LOG
+#define DLSINSTR_LOG
+#endif
+
+#define F_RGN_OPTION_SELFNONEXCLUSIVE 0x0001
+
+// Region Flags
+enum RegionFlags
+{
+ DLSREGION_KEYGROUPMASK = 0x0F,
+ DLSREGION_OVERRIDEWSMP = 0x10,
+ DLSREGION_PINGPONGLOOP = 0x20,
+ DLSREGION_SAMPLELOOP = 0x40,
+ DLSREGION_SELFNONEXCLUSIVE = 0x80,
+ DLSREGION_SUSTAINLOOP = 0x100,
+};
+
+///////////////////////////////////////////////////////////////////////////
+// Articulation connection graph definitions
+
+enum ConnectionSource : uint16
+{
+ // Generic Sources
+ CONN_SRC_NONE = 0x0000,
+ CONN_SRC_LFO = 0x0001,
+ CONN_SRC_KEYONVELOCITY = 0x0002,
+ CONN_SRC_KEYNUMBER = 0x0003,
+ CONN_SRC_EG1 = 0x0004,
+ CONN_SRC_EG2 = 0x0005,
+ CONN_SRC_PITCHWHEEL = 0x0006,
+
+ CONN_SRC_POLYPRESSURE = 0x0007,
+ CONN_SRC_CHANNELPRESSURE = 0x0008,
+ CONN_SRC_VIBRATO = 0x0009,
+
+ // Midi Controllers 0-127
+ CONN_SRC_CC1 = 0x0081,
+ CONN_SRC_CC7 = 0x0087,
+ CONN_SRC_CC10 = 0x008a,
+ CONN_SRC_CC11 = 0x008b,
+
+ CONN_SRC_CC91 = 0x00db,
+ CONN_SRC_CC93 = 0x00dd,
+
+ CONN_SRC_RPN0 = 0x0100,
+ CONN_SRC_RPN1 = 0x0101,
+ CONN_SRC_RPN2 = 0x0102,
+};
+
+enum ConnectionDestination : uint16
+{
+ // Generic Destinations
+ CONN_DST_NONE = 0x0000,
+ CONN_DST_ATTENUATION = 0x0001,
+ CONN_DST_RESERVED = 0x0002,
+ CONN_DST_PITCH = 0x0003,
+ CONN_DST_PAN = 0x0004,
+
+ // LFO Destinations
+ CONN_DST_LFO_FREQUENCY = 0x0104,
+ CONN_DST_LFO_STARTDELAY = 0x0105,
+
+ CONN_DST_KEYNUMBER = 0x0005,
+
+ // EG1 Destinations
+ CONN_DST_EG1_ATTACKTIME = 0x0206,
+ CONN_DST_EG1_DECAYTIME = 0x0207,
+ CONN_DST_EG1_RESERVED = 0x0208,
+ CONN_DST_EG1_RELEASETIME = 0x0209,
+ CONN_DST_EG1_SUSTAINLEVEL = 0x020a,
+
+ CONN_DST_EG1_DELAYTIME = 0x020b,
+ CONN_DST_EG1_HOLDTIME = 0x020c,
+ CONN_DST_EG1_SHUTDOWNTIME = 0x020d,
+
+ // EG2 Destinations
+ CONN_DST_EG2_ATTACKTIME = 0x030a,
+ CONN_DST_EG2_DECAYTIME = 0x030b,
+ CONN_DST_EG2_RESERVED = 0x030c,
+ CONN_DST_EG2_RELEASETIME = 0x030d,
+ CONN_DST_EG2_SUSTAINLEVEL = 0x030e,
+
+ CONN_DST_EG2_DELAYTIME = 0x030f,
+ CONN_DST_EG2_HOLDTIME = 0x0310,
+
+ CONN_TRN_NONE = 0x0000,
+ CONN_TRN_CONCAVE = 0x0001,
+};
+
+
+//////////////////////////////////////////////////////////
+// Supported DLS1 Articulations
+
+// [4-bit transform][12-bit dest][8-bit control][8-bit source] = 32-bit ID
+constexpr uint32 DLSArt(uint8 src, uint8 ctl, uint16 dst)
+{
+ return (dst << 16u) | (ctl << 8u) | src;
+}
+
+enum DLSArt : uint32
+{
+ // Vibrato / Tremolo
+ ART_LFO_FREQUENCY = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_LFO_FREQUENCY),
+ ART_LFO_STARTDELAY = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_LFO_STARTDELAY),
+ ART_LFO_ATTENUATION = DLSArt(CONN_SRC_LFO, CONN_SRC_NONE, CONN_DST_ATTENUATION),
+ ART_LFO_PITCH = DLSArt(CONN_SRC_LFO, CONN_SRC_NONE, CONN_DST_PITCH),
+ ART_LFO_MODWTOATTN = DLSArt(CONN_SRC_LFO, CONN_SRC_CC1, CONN_DST_ATTENUATION),
+ ART_LFO_MODWTOPITCH = DLSArt(CONN_SRC_LFO, CONN_SRC_CC1, CONN_DST_PITCH),
+
+ // Volume Envelope
+ ART_VOL_EG_ATTACKTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_ATTACKTIME),
+ ART_VOL_EG_DECAYTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_DECAYTIME),
+ ART_VOL_EG_SUSTAINLEVEL = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_SUSTAINLEVEL),
+ ART_VOL_EG_RELEASETIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_RELEASETIME),
+ ART_VOL_EG_DELAYTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_DELAYTIME),
+ ART_VOL_EG_HOLDTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_HOLDTIME),
+ ART_VOL_EG_SHUTDOWNTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG1_SHUTDOWNTIME),
+ ART_VOL_EG_VELTOATTACK = DLSArt(CONN_SRC_KEYONVELOCITY, CONN_SRC_NONE, CONN_DST_EG1_ATTACKTIME),
+ ART_VOL_EG_KEYTODECAY = DLSArt(CONN_SRC_KEYNUMBER, CONN_SRC_NONE, CONN_DST_EG1_DECAYTIME),
+
+ // Pitch Envelope
+ ART_PITCH_EG_ATTACKTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG2_ATTACKTIME),
+ ART_PITCH_EG_DECAYTIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG2_DECAYTIME),
+ ART_PITCH_EG_SUSTAINLEVEL = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG2_SUSTAINLEVEL),
+ ART_PITCH_EG_RELEASETIME = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_EG2_RELEASETIME),
+ ART_PITCH_EG_VELTOATTACK = DLSArt(CONN_SRC_KEYONVELOCITY, CONN_SRC_NONE, CONN_DST_EG2_ATTACKTIME),
+ ART_PITCH_EG_KEYTODECAY = DLSArt(CONN_SRC_KEYNUMBER, CONN_SRC_NONE, CONN_DST_EG2_DECAYTIME),
+
+ // Default Pan
+ ART_DEFAULTPAN = DLSArt(CONN_SRC_NONE, CONN_SRC_NONE, CONN_DST_PAN),
+};
+
+//////////////////////////////////////////////////////////
+// DLS IFF Chunk IDs
+
+enum IFFChunkID : uint32
+{
+ // Standard IFF chunks IDs
+ IFFID_FORM = MagicLE("FORM"),
+ IFFID_RIFF = MagicLE("RIFF"),
+ IFFID_LIST = MagicLE("LIST"),
+ IFFID_INFO = MagicLE("INFO"),
+
+ // IFF Info fields
+ IFFID_ICOP = MagicLE("ICOP"),
+ IFFID_INAM = MagicLE("INAM"),
+ IFFID_ICMT = MagicLE("ICMT"),
+ IFFID_IENG = MagicLE("IENG"),
+ IFFID_ISFT = MagicLE("ISFT"),
+ IFFID_ISBJ = MagicLE("ISBJ"),
+
+ // Wave IFF chunks IDs
+ IFFID_wave = MagicLE("wave"),
+ IFFID_wsmp = MagicLE("wsmp"),
+
+ IFFID_XDLS = MagicLE("XDLS"),
+ IFFID_DLS = MagicLE("DLS "),
+ IFFID_MLS = MagicLE("MLS "),
+ IFFID_RMID = MagicLE("RMID"),
+ IFFID_colh = MagicLE("colh"),
+ IFFID_ins = MagicLE("ins "),
+ IFFID_insh = MagicLE("insh"),
+ IFFID_ptbl = MagicLE("ptbl"),
+ IFFID_wvpl = MagicLE("wvpl"),
+ IFFID_rgn = MagicLE("rgn "),
+ IFFID_rgn2 = MagicLE("rgn2"),
+ IFFID_rgnh = MagicLE("rgnh"),
+ IFFID_wlnk = MagicLE("wlnk"),
+ IFFID_art1 = MagicLE("art1"),
+ IFFID_art2 = MagicLE("art2"),
+};
+
+//////////////////////////////////////////////////////////
+// DLS Structures definitions
+
+struct IFFCHUNK
+{
+ uint32le id;
+ uint32le len;
+};
+
+MPT_BINARY_STRUCT(IFFCHUNK, 8)
+
+struct RIFFChunkID
+{
+ uint32le id_RIFF;
+ uint32le riff_len;
+ uint32le id_DLS;
+};
+
+MPT_BINARY_STRUCT(RIFFChunkID, 12)
+
+struct LISTChunk
+{
+ uint32le id;
+ uint32le len;
+ uint32le listid;
+};
+
+MPT_BINARY_STRUCT(LISTChunk, 12)
+
+struct DLSRgnRange
+{
+ uint16le usLow;
+ uint16le usHigh;
+};
+
+MPT_BINARY_STRUCT(DLSRgnRange, 4)
+
+struct VERSChunk
+{
+ uint32le id;
+ uint32le len;
+ uint16le version[4];
+};
+
+MPT_BINARY_STRUCT(VERSChunk, 16)
+
+struct PTBLChunk
+{
+ uint32le cbSize;
+ uint32le cCues;
+};
+
+MPT_BINARY_STRUCT(PTBLChunk, 8)
+
+struct INSHChunk
+{
+ uint32le cRegions;
+ uint32le ulBank;
+ uint32le ulInstrument;
+};
+
+MPT_BINARY_STRUCT(INSHChunk, 12)
+
+struct RGNHChunk
+{
+ DLSRgnRange RangeKey;
+ DLSRgnRange RangeVelocity;
+ uint16le fusOptions;
+ uint16le usKeyGroup;
+};
+
+MPT_BINARY_STRUCT(RGNHChunk, 12)
+
+struct WLNKChunk
+{
+ uint16le fusOptions;
+ uint16le usPhaseGroup;
+ uint32le ulChannel;
+ uint32le ulTableIndex;
+};
+
+MPT_BINARY_STRUCT(WLNKChunk, 12)
+
+struct ART1Chunk
+{
+ uint32le cbSize;
+ uint32le cConnectionBlocks;
+};
+
+MPT_BINARY_STRUCT(ART1Chunk, 8)
+
+struct ConnectionBlock
+{
+ uint16le usSource;
+ uint16le usControl;
+ uint16le usDestination;
+ uint16le usTransform;
+ int32le lScale;
+};
+
+MPT_BINARY_STRUCT(ConnectionBlock, 12)
+
+struct WSMPChunk
+{
+ uint32le cbSize;
+ uint16le usUnityNote;
+ int16le sFineTune;
+ int32le lAttenuation;
+ uint32le fulOptions;
+ uint32le cSampleLoops;
+};
+
+MPT_BINARY_STRUCT(WSMPChunk, 20)
+
+struct WSMPSampleLoop
+{
+ uint32le cbSize;
+ uint32le ulLoopType;
+ uint32le ulLoopStart;
+ uint32le ulLoopLength;
+
+};
+
+MPT_BINARY_STRUCT(WSMPSampleLoop, 16)
+
+
+/////////////////////////////////////////////////////////////////////
+// SF2 IFF Chunk IDs
+
+enum SF2ChunkID : uint32
+{
+ IFFID_ifil = MagicLE("ifil"),
+ IFFID_sfbk = MagicLE("sfbk"),
+ IFFID_sfpk = MagicLE("sfpk"), // SF2Pack compressed soundfont
+ IFFID_sdta = MagicLE("sdta"),
+ IFFID_pdta = MagicLE("pdta"),
+ IFFID_phdr = MagicLE("phdr"),
+ IFFID_pbag = MagicLE("pbag"),
+ IFFID_pgen = MagicLE("pgen"),
+ IFFID_inst = MagicLE("inst"),
+ IFFID_ibag = MagicLE("ibag"),
+ IFFID_igen = MagicLE("igen"),
+ IFFID_shdr = MagicLE("shdr"),
+};
+
+///////////////////////////////////////////
+// SF2 Generators IDs
+
+enum SF2Generators : uint16
+{
+ SF2_GEN_START_LOOP_FINE = 2,
+ SF2_GEN_END_LOOP_FINE = 3,
+ SF2_GEN_MODENVTOFILTERFC = 11,
+ SF2_GEN_PAN = 17,
+ SF2_GEN_DECAYMODENV = 28,
+ SF2_GEN_ATTACKVOLENV = 34,
+ SF2_GEN_HOLDVOLENV = 34,
+ SF2_GEN_DECAYVOLENV = 36,
+ SF2_GEN_SUSTAINVOLENV = 37,
+ SF2_GEN_RELEASEVOLENV = 38,
+ SF2_GEN_INSTRUMENT = 41,
+ SF2_GEN_KEYRANGE = 43,
+ SF2_GEN_START_LOOP_COARSE = 45,
+ SF2_GEN_ATTENUATION = 48,
+ SF2_GEN_END_LOOP_COARSE = 50,
+ SF2_GEN_COARSETUNE = 51,
+ SF2_GEN_FINETUNE = 52,
+ SF2_GEN_SAMPLEID = 53,
+ SF2_GEN_SAMPLEMODES = 54,
+ SF2_GEN_SCALE_TUNING = 56,
+ SF2_GEN_KEYGROUP = 57,
+ SF2_GEN_UNITYNOTE = 58,
+};
+
+/////////////////////////////////////////////////////////////////////
+// SF2 Structures Definitions
+
+struct SFPresetHeader
+{
+ char achPresetName[20];
+ uint16le wPreset;
+ uint16le wBank;
+ uint16le wPresetBagNdx;
+ uint32le dwLibrary;
+ uint32le dwGenre;
+ uint32le dwMorphology;
+};
+
+MPT_BINARY_STRUCT(SFPresetHeader, 38)
+
+struct SFPresetBag
+{
+ uint16le wGenNdx;
+ uint16le wModNdx;
+};
+
+MPT_BINARY_STRUCT(SFPresetBag, 4)
+
+struct SFGenList
+{
+ uint16le sfGenOper;
+ uint16le genAmount;
+};
+
+MPT_BINARY_STRUCT(SFGenList, 4)
+
+struct SFInst
+{
+ char achInstName[20];
+ uint16le wInstBagNdx;
+};
+
+MPT_BINARY_STRUCT(SFInst, 22)
+
+struct SFInstBag
+{
+ uint16le wGenNdx;
+ uint16le wModNdx;
+};
+
+MPT_BINARY_STRUCT(SFInstBag, 4)
+
+struct SFInstGenList
+{
+ uint16le sfGenOper;
+ uint16le genAmount;
+};
+
+MPT_BINARY_STRUCT(SFInstGenList, 4)
+
+struct SFSample
+{
+ char achSampleName[20];
+ uint32le dwStart;
+ uint32le dwEnd;
+ uint32le dwStartloop;
+ uint32le dwEndloop;
+ uint32le dwSampleRate;
+ uint8le byOriginalPitch;
+ int8le chPitchCorrection;
+ uint16le wSampleLink;
+ uint16le sfSampleType;
+};
+
+MPT_BINARY_STRUCT(SFSample, 46)
+
+// End of structures definitions
+/////////////////////////////////////////////////////////////////////
+
+
+struct SF2LoaderInfo
+{
+ FileReader presetBags;
+ FileReader presetGens;
+ FileReader insts;
+ FileReader instBags;
+ FileReader instGens;
+};
+
+
+/////////////////////////////////////////////////////////////////////
+// Unit conversion
+
+static uint8 DLSSustainLevelToLinear(int32 sustain)
+{
+ // 0.1% units
+ if(sustain >= 0)
+ {
+ int32 l = sustain / (1000 * 512);
+ if(l >= 0 && l <= 128)
+ return static_cast<uint8>(l);
+ }
+ return 128;
+}
+
+
+static uint8 SF2SustainLevelToLinear(int32 sustain)
+{
+ // 0.1% units
+ int32 l = 128 * (1000 - Clamp(sustain, 0, 1000)) / 1000;
+ return static_cast<uint8>(l);
+}
+
+
+int32 CDLSBank::DLS32BitTimeCentsToMilliseconds(int32 lTimeCents)
+{
+ // tc = log2(time[secs]) * 1200*65536
+ // time[secs] = 2^(tc/(1200*65536))
+ if ((uint32)lTimeCents == 0x80000000) return 0;
+ double fmsecs = 1000.0 * std::pow(2.0, ((double)lTimeCents)/(1200.0*65536.0));
+ if (fmsecs < -32767) return -32767;
+ if (fmsecs > 32767) return 32767;
+ return (int32)fmsecs;
+}
+
+
+// 0dB = 0x10000
+int32 CDLSBank::DLS32BitRelativeGainToLinear(int32 lCentibels)
+{
+ // v = 10^(cb/(200*65536)) * V
+ return (int32)(65536.0 * std::pow(10.0, ((double)lCentibels)/(200*65536.0)) );
+}
+
+
+int32 CDLSBank::DLS32BitRelativeLinearToGain(int32 lGain)
+{
+ // cb = log10(v/V) * 200 * 65536
+ if (lGain <= 0) return -960 * 65536;
+ return (int32)(200 * 65536.0 * std::log10(((double)lGain) / 65536.0));
+}
+
+
+int32 CDLSBank::DLSMidiVolumeToLinear(uint32 nMidiVolume)
+{
+ return (nMidiVolume * nMidiVolume << 16) / (127*127);
+}
+
+
+/////////////////////////////////////////////////////////////////////
+// Implementation
+
+CDLSBank::CDLSBank()
+{
+ m_nMaxWaveLink = 0;
+ m_nType = SOUNDBANK_TYPE_INVALID;
+}
+
+
+bool CDLSBank::IsDLSBank(const mpt::PathString &filename)
+{
+ RIFFChunkID riff;
+ if(filename.empty()) return false;
+ mpt::ifstream f(filename, std::ios::binary);
+ if(!f)
+ {
+ return false;
+ }
+ MemsetZero(riff);
+ mpt::IO::Read(f, riff);
+ // Check for embedded DLS sections
+ if(riff.id_RIFF == IFFID_FORM)
+ {
+ // Miles Sound System
+ do
+ {
+ uint32 len = mpt::bit_cast<uint32be>(riff.riff_len);
+ if (len <= 4) break;
+ if (riff.id_DLS == IFFID_XDLS)
+ {
+ mpt::IO::Read(f, riff);
+ break;
+ }
+ if((len % 2u) != 0)
+ len++;
+ if (!mpt::IO::SeekRelative(f, len-4)) break;
+ } while (mpt::IO::Read(f, riff));
+ } else if(riff.id_RIFF == IFFID_RIFF && riff.id_DLS == IFFID_RMID)
+ {
+ for (;;)
+ {
+ if(!mpt::IO::Read(f, riff))
+ break;
+ if (riff.id_DLS == IFFID_DLS)
+ break; // found it
+ int len = riff.riff_len;
+ if((len % 2u) != 0)
+ len++;
+ if ((len <= 4) || !mpt::IO::SeekRelative(f, len-4)) break;
+ }
+ }
+ return ((riff.id_RIFF == IFFID_RIFF)
+ && ((riff.id_DLS == IFFID_DLS) || (riff.id_DLS == IFFID_MLS) || (riff.id_DLS == IFFID_sfbk))
+ && (riff.riff_len >= 256));
+}
+
+
+///////////////////////////////////////////////////////////////
+// Find an instrument based on the given parameters
+
+const DLSINSTRUMENT *CDLSBank::FindInstrument(bool isDrum, uint32 bank, uint32 program, uint32 key, uint32 *pInsNo) const
+{
+ // This helps finding the "more correct" instrument if we search for an instrument in any bank, and the higher-bank instruments appear first in the file
+ // Fixes issues when loading GeneralUser GS into OpenMPT's MIDI library.
+ std::vector<std::reference_wrapper<const DLSINSTRUMENT>> sortedInstr{m_Instruments.begin(), m_Instruments.end()};
+ if(bank >= 0x4000 || program >= 0x80)
+ {
+ std::sort(sortedInstr.begin(), sortedInstr.end(), [](const DLSINSTRUMENT &l, const DLSINSTRUMENT &r)
+ { return std::tie(l.ulBank, l.ulInstrument) < std::tie(r.ulBank, r.ulInstrument); });
+ }
+
+ for(const DLSINSTRUMENT &dlsIns : sortedInstr)
+ {
+ uint32 insbank = ((dlsIns.ulBank & 0x7F00) >> 1) | (dlsIns.ulBank & 0x7F);
+ if((bank >= 0x4000) || (insbank == bank))
+ {
+ if(isDrum && (dlsIns.ulBank & F_INSTRUMENT_DRUMS))
+ {
+ if((program >= 0x80) || (program == (dlsIns.ulInstrument & 0x7F)))
+ {
+ for(const auto &region : dlsIns.Regions)
+ {
+ if(region.IsDummy())
+ continue;
+
+ if((!key || key >= 0x80)
+ || (key >= region.uKeyMin && key <= region.uKeyMax))
+ {
+ if(pInsNo)
+ *pInsNo = static_cast<uint32>(std::distance(m_Instruments.data(), &dlsIns));
+ // cppcheck false-positive
+ // cppcheck-suppress returnDanglingLifetime
+ return &dlsIns;
+ }
+ }
+ }
+ } else if(!isDrum && !(dlsIns.ulBank & F_INSTRUMENT_DRUMS))
+ {
+ if((program >= 0x80) || (program == (dlsIns.ulInstrument & 0x7F)))
+ {
+ if(pInsNo)
+ *pInsNo = static_cast<uint32>(std::distance(m_Instruments.data(), &dlsIns));
+ // cppcheck false-positive
+ // cppcheck-suppress returnDanglingLifetime
+ return &dlsIns;
+ }
+ }
+ }
+ }
+
+ return nullptr;
+}
+
+
+bool CDLSBank::FindAndExtract(CSoundFile &sndFile, const INSTRUMENTINDEX ins, const bool isDrum) const
+{
+ ModInstrument *pIns = sndFile.Instruments[ins];
+ if(pIns == nullptr)
+ return false;
+
+ uint32 dlsIns = 0, drumRgn = 0;
+ const uint32 program = (pIns->nMidiProgram != 0) ? pIns->nMidiProgram - 1 : 0;
+ const uint32 key = isDrum ? (pIns->nMidiDrumKey & 0x7F) : 0xFF;
+ if(FindInstrument(isDrum, (pIns->wMidiBank - 1) & 0x3FFF, program, key, &dlsIns)
+ || FindInstrument(isDrum, (pIns->wMidiBank - 1) & 0x3F80, program, key, &dlsIns)
+ || FindInstrument(isDrum, 0xFFFF, isDrum ? 0xFF : program, key, &dlsIns))
+ {
+ if(key < 0x80) drumRgn = GetRegionFromKey(dlsIns, key);
+ if(ExtractInstrument(sndFile, ins, dlsIns, drumRgn))
+ {
+ pIns = sndFile.Instruments[ins]; // Reset pointer because ExtractInstrument may delete the previous value.
+ if((key >= 24) && (key < 24 + std::size(szMidiPercussionNames)))
+ {
+ pIns->name = szMidiPercussionNames[key - 24];
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+
+///////////////////////////////////////////////////////////////
+// Update DLS instrument definition from an IFF chunk
+
+bool CDLSBank::UpdateInstrumentDefinition(DLSINSTRUMENT *pDlsIns, FileReader chunk)
+{
+ IFFCHUNK header;
+ chunk.ReadStruct(header);
+ if(!header.len || !chunk.CanRead(header.len))
+ return false;
+ if(header.id == IFFID_LIST)
+ {
+ uint32 listid = chunk.ReadUint32LE();
+ while(chunk.CanRead(sizeof(IFFCHUNK)))
+ {
+ IFFCHUNK subHeader;
+ chunk.ReadStruct(subHeader);
+ chunk.SkipBack(sizeof(IFFCHUNK));
+ FileReader subData = chunk.ReadChunk(subHeader.len + sizeof(IFFCHUNK));
+ if(subHeader.len & 1)
+ {
+ chunk.Skip(1);
+ }
+ UpdateInstrumentDefinition(pDlsIns, subData);
+ }
+ switch(listid)
+ {
+ case IFFID_rgn: // Level 1 region
+ case IFFID_rgn2: // Level 2 region
+ pDlsIns->Regions.push_back({});
+ break;
+ }
+ } else
+ {
+ switch(header.id)
+ {
+ case IFFID_insh:
+ {
+ INSHChunk insh;
+ chunk.ReadStruct(insh);
+ pDlsIns->ulBank = insh.ulBank;
+ pDlsIns->ulInstrument = insh.ulInstrument;
+ //Log("%3d regions, bank 0x%04X instrument %3d\n", insh.cRegions, pDlsIns->ulBank, pDlsIns->ulInstrument);
+ break;
+ }
+
+ case IFFID_rgnh:
+ if(!pDlsIns->Regions.empty())
+ {
+ RGNHChunk rgnh;
+ chunk.ReadStruct(rgnh);
+ DLSREGION &region = pDlsIns->Regions.back();
+ region.uKeyMin = (uint8)rgnh.RangeKey.usLow;
+ region.uKeyMax = (uint8)rgnh.RangeKey.usHigh;
+ region.fuOptions = (uint8)(rgnh.usKeyGroup & DLSREGION_KEYGROUPMASK);
+ if(rgnh.fusOptions & F_RGN_OPTION_SELFNONEXCLUSIVE)
+ region.fuOptions |= DLSREGION_SELFNONEXCLUSIVE;
+ //Log(" Region %d: fusOptions=0x%02X usKeyGroup=0x%04X ", pDlsIns->nRegions, rgnh.fusOptions, rgnh.usKeyGroup);
+ //Log("KeyRange[%3d,%3d] ", rgnh.RangeKey.usLow, rgnh.RangeKey.usHigh);
+ }
+ break;
+
+ case IFFID_wlnk:
+ if (!pDlsIns->Regions.empty())
+ {
+ WLNKChunk wlnk;
+ chunk.ReadStruct(wlnk);
+ DLSREGION &region = pDlsIns->Regions.back();
+ region.nWaveLink = (uint16)wlnk.ulTableIndex;
+ if((region.nWaveLink < Util::MaxValueOfType(region.nWaveLink)) && (region.nWaveLink >= m_nMaxWaveLink))
+ m_nMaxWaveLink = region.nWaveLink + 1;
+ //Log(" WaveLink %d: fusOptions=0x%02X usPhaseGroup=0x%04X ", pDlsIns->nRegions, wlnk.fusOptions, wlnk.usPhaseGroup);
+ //Log("ulChannel=%d ulTableIndex=%4d\n", wlnk.ulChannel, wlnk.ulTableIndex);
+ }
+ break;
+
+ case IFFID_wsmp:
+ if(!pDlsIns->Regions.empty())
+ {
+ DLSREGION &region = pDlsIns->Regions.back();
+ WSMPChunk wsmp;
+ chunk.ReadStruct(wsmp);
+ region.fuOptions |= DLSREGION_OVERRIDEWSMP;
+ region.uUnityNote = (uint8)wsmp.usUnityNote;
+ region.sFineTune = wsmp.sFineTune;
+ int32 lVolume = DLS32BitRelativeGainToLinear(wsmp.lAttenuation) / 256;
+ if (lVolume > 256) lVolume = 256;
+ if (lVolume < 4) lVolume = 4;
+ region.usVolume = (uint16)lVolume;
+ //Log(" WaveSample %d: usUnityNote=%2d sFineTune=%3d ", pDlsEnv->nRegions, p->usUnityNote, p->sFineTune);
+ //Log("fulOptions=0x%04X loops=%d\n", p->fulOptions, p->cSampleLoops);
+ if((wsmp.cSampleLoops) && (wsmp.cbSize + sizeof(WSMPSampleLoop) <= header.len))
+ {
+ WSMPSampleLoop loop;
+ chunk.Seek(sizeof(IFFCHUNK) + wsmp.cbSize);
+ chunk.ReadStruct(loop);
+ //Log("looptype=%2d loopstart=%5d loopend=%5d\n", ploop->ulLoopType, ploop->ulLoopStart, ploop->ulLoopLength);
+ if(loop.ulLoopLength > 3)
+ {
+ region.fuOptions |= DLSREGION_SAMPLELOOP;
+ //if(loop.ulLoopType) region.fuOptions |= DLSREGION_PINGPONGLOOP;
+ region.ulLoopStart = loop.ulLoopStart;
+ region.ulLoopEnd = loop.ulLoopStart + loop.ulLoopLength;
+ }
+ }
+ }
+ break;
+
+ case IFFID_art1:
+ case IFFID_art2:
+ {
+ ART1Chunk art1;
+ chunk.ReadStruct(art1);
+ if(!(pDlsIns->ulBank & F_INSTRUMENT_DRUMS))
+ {
+ pDlsIns->nMelodicEnv = static_cast<uint32>(m_Envelopes.size() + 1);
+ }
+ if(art1.cbSize + art1.cConnectionBlocks * sizeof(ConnectionBlock) > header.len)
+ break;
+ DLSENVELOPE dlsEnv;
+ MemsetZero(dlsEnv);
+ dlsEnv.nDefPan = 128;
+ dlsEnv.nVolSustainLevel = 128;
+ //Log(" art1 (%3d bytes): cbSize=%d cConnectionBlocks=%d\n", p->len, p->cbSize, p->cConnectionBlocks);
+ chunk.Seek(sizeof(IFFCHUNK) + art1.cbSize);
+ for (uint32 iblk = 0; iblk < art1.cConnectionBlocks; iblk++)
+ {
+ ConnectionBlock blk;
+ chunk.ReadStruct(blk);
+ // [4-bit transform][12-bit dest][8-bit control][8-bit source] = 32-bit ID
+ uint32 dwArticulation = blk.usTransform;
+ dwArticulation = (dwArticulation << 12) | (blk.usDestination & 0x0FFF);
+ dwArticulation = (dwArticulation << 8) | (blk.usControl & 0x00FF);
+ dwArticulation = (dwArticulation << 8) | (blk.usSource & 0x00FF);
+ switch(dwArticulation)
+ {
+ case ART_DEFAULTPAN:
+ {
+ int32 pan = 128 + blk.lScale / (65536000/128);
+ dlsEnv.nDefPan = mpt::saturate_cast<uint8>(pan);
+ }
+ break;
+
+ case ART_VOL_EG_ATTACKTIME:
+ // 32-bit time cents units. range = [0s, 20s]
+ dlsEnv.wVolAttack = 0;
+ if(blk.lScale > -0x40000000)
+ {
+ int32 l = blk.lScale - 78743200; // maximum velocity
+ if (l > 0) l = 0;
+ int32 attacktime = DLS32BitTimeCentsToMilliseconds(l);
+ if (attacktime < 0) attacktime = 0;
+ if (attacktime > 20000) attacktime = 20000;
+ if (attacktime >= 20) dlsEnv.wVolAttack = (uint16)(attacktime / 20);
+ //Log("%3d: Envelope Attack Time set to %d (%d time cents)\n", (uint32)(dlsEnv.ulInstrument & 0x7F)|((dlsEnv.ulBank >> 16) & 0x8000), attacktime, pblk->lScale);
+ }
+ break;
+
+ case ART_VOL_EG_DECAYTIME:
+ // 32-bit time cents units. range = [0s, 20s]
+ dlsEnv.wVolDecay = 0;
+ if(blk.lScale > -0x40000000)
+ {
+ int32 decaytime = DLS32BitTimeCentsToMilliseconds(blk.lScale);
+ if (decaytime > 20000) decaytime = 20000;
+ if (decaytime >= 20) dlsEnv.wVolDecay = (uint16)(decaytime / 20);
+ //Log("%3d: Envelope Decay Time set to %d (%d time cents)\n", (uint32)(dlsEnv.ulInstrument & 0x7F)|((dlsEnv.ulBank >> 16) & 0x8000), decaytime, pblk->lScale);
+ }
+ break;
+
+ case ART_VOL_EG_RELEASETIME:
+ // 32-bit time cents units. range = [0s, 20s]
+ dlsEnv.wVolRelease = 0;
+ if(blk.lScale > -0x40000000)
+ {
+ int32 releasetime = DLS32BitTimeCentsToMilliseconds(blk.lScale);
+ if (releasetime > 20000) releasetime = 20000;
+ if (releasetime >= 20) dlsEnv.wVolRelease = (uint16)(releasetime / 20);
+ //Log("%3d: Envelope Release Time set to %d (%d time cents)\n", (uint32)(dlsEnv.ulInstrument & 0x7F)|((dlsEnv.ulBank >> 16) & 0x8000), dlsEnv.wVolRelease, pblk->lScale);
+ }
+ break;
+
+ case ART_VOL_EG_SUSTAINLEVEL:
+ // 0.1% units
+ if(blk.lScale >= 0)
+ {
+ dlsEnv.nVolSustainLevel = DLSSustainLevelToLinear(blk.lScale);
+ }
+ break;
+
+ //default:
+ // Log(" Articulation = 0x%08X value=%d\n", dwArticulation, blk.lScale);
+ }
+ }
+ m_Envelopes.push_back(dlsEnv);
+ }
+ break;
+
+ case IFFID_INAM:
+ chunk.ReadString<mpt::String::spacePadded>(pDlsIns->szName, header.len);
+ break;
+ #if 0
+ default:
+ {
+ char sid[5];
+ memcpy(sid, &header.id, 4);
+ sid[4] = 0;
+ Log(" \"%s\": %d bytes\n", (uint32)sid, header.len.get());
+ }
+ #endif
+ }
+ }
+ return true;
+}
+
+///////////////////////////////////////////////////////////////
+// Converts SF2 chunks to DLS
+
+bool CDLSBank::UpdateSF2PresetData(SF2LoaderInfo &sf2info, const IFFCHUNK &header, FileReader &chunk)
+{
+ if (!chunk.IsValid()) return false;
+ switch(header.id)
+ {
+ case IFFID_phdr:
+ if(m_Instruments.empty())
+ {
+ uint32 numIns = static_cast<uint32>(chunk.GetLength() / sizeof(SFPresetHeader));
+ if(numIns <= 1)
+ break;
+ // The terminal sfPresetHeader record should never be accessed, and exists only to provide a terminal wPresetBagNdx with which to determine the number of zones in the last preset.
+ numIns--;
+ m_Instruments.resize(numIns);
+
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBank", MPT_UFORMAT("phdr: {} instruments")(m_Instruments.size()));
+ #endif
+ SFPresetHeader psfh;
+ chunk.ReadStruct(psfh);
+ for(auto &dlsIns : m_Instruments)
+ {
+ mpt::String::WriteAutoBuf(dlsIns.szName) = mpt::String::ReadAutoBuf(psfh.achPresetName);
+ dlsIns.ulInstrument = psfh.wPreset & 0x7F;
+ dlsIns.ulBank = (psfh.wBank >= 128) ? F_INSTRUMENT_DRUMS : (psfh.wBank << 8);
+ dlsIns.wPresetBagNdx = psfh.wPresetBagNdx;
+ dlsIns.wPresetBagNum = 1;
+ chunk.ReadStruct(psfh);
+ if (psfh.wPresetBagNdx > dlsIns.wPresetBagNdx) dlsIns.wPresetBagNum = static_cast<uint16>(psfh.wPresetBagNdx - dlsIns.wPresetBagNdx);
+ }
+ }
+ break;
+
+ case IFFID_pbag:
+ if(!m_Instruments.empty() && chunk.CanRead(sizeof(SFPresetBag)))
+ {
+ sf2info.presetBags = chunk.GetChunk(chunk.BytesLeft());
+ }
+ #ifdef DLSINSTR_LOG
+ else MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", U_("pbag: no instruments!"));
+ #endif
+ break;
+
+ case IFFID_pgen:
+ if(!m_Instruments.empty() && chunk.CanRead(sizeof(SFGenList)))
+ {
+ sf2info.presetGens = chunk.GetChunk(chunk.BytesLeft());
+ }
+ #ifdef DLSINSTR_LOG
+ else MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", U_("pgen: no instruments!"));
+ #endif
+ break;
+
+ case IFFID_inst:
+ if(!m_Instruments.empty() && chunk.CanRead(sizeof(SFInst)))
+ {
+ sf2info.insts = chunk.GetChunk(chunk.BytesLeft());
+ }
+ break;
+
+ case IFFID_ibag:
+ if(!m_Instruments.empty() && chunk.CanRead(sizeof(SFInstBag)))
+ {
+ sf2info.instBags = chunk.GetChunk(chunk.BytesLeft());
+ }
+ break;
+
+ case IFFID_igen:
+ if(!m_Instruments.empty() && chunk.CanRead(sizeof(SFInstGenList)))
+ {
+ sf2info.instGens = chunk.GetChunk(chunk.BytesLeft());
+ }
+ break;
+
+ case IFFID_shdr:
+ if (m_SamplesEx.empty())
+ {
+ uint32 numSmp = static_cast<uint32>(chunk.GetLength() / sizeof(SFSample));
+ if (numSmp < 1) break;
+ m_SamplesEx.resize(numSmp);
+ m_WaveForms.resize(numSmp);
+ #ifdef DLSINSTR_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT("shdr: {} samples")(m_SamplesEx.size()));
+ #endif
+
+ for (uint32 i = 0; i < numSmp; i++)
+ {
+ SFSample p;
+ chunk.ReadStruct(p);
+ DLSSAMPLEEX &dlsSmp = m_SamplesEx[i];
+ mpt::String::WriteAutoBuf(dlsSmp.szName) = mpt::String::ReadAutoBuf(p.achSampleName);
+ dlsSmp.dwLen = 0;
+ dlsSmp.dwSampleRate = p.dwSampleRate;
+ dlsSmp.byOriginalPitch = p.byOriginalPitch;
+ dlsSmp.chPitchCorrection = static_cast<int8>(Util::muldivr(p.chPitchCorrection, 128, 100));
+ // cognitone's sf2convert tool doesn't set the correct sample flags (0x01 / 0x02 instead of 0x10/ 0x20).
+ // For SF3, we ignore this and go by https://github.com/FluidSynth/fluidsynth/wiki/SoundFont3Format instead
+ // As cognitone's tool is the only tool writing SF4 files, we always assume compressed samples with SF4 files if bits 0/1 are set.
+ uint16 sampleType = p.sfSampleType;
+ if(m_sf2version >= 0x4'0000 && m_sf2version <= 0x4'FFFF && (sampleType & 0x03))
+ sampleType = (sampleType & 0xFFFC) | 0x10;
+
+ dlsSmp.compressed = (sampleType & 0x10);
+ if(((sampleType & 0x7FCF) <= 4) && (p.dwEnd >= p.dwStart + 4))
+ {
+ m_WaveForms[i] = p.dwStart;
+ dlsSmp.dwLen = (p.dwEnd - p.dwStart);
+ if(!dlsSmp.compressed)
+ {
+ m_WaveForms[i] *= 2;
+ dlsSmp.dwLen *= 2;
+ if((p.dwEndloop > p.dwStartloop + 7) && (p.dwStartloop >= p.dwStart))
+ {
+ dlsSmp.dwStartloop = p.dwStartloop - p.dwStart;
+ dlsSmp.dwEndloop = p.dwEndloop - p.dwStart;
+ }
+ } else
+ {
+ if(p.dwEndloop > p.dwStartloop + 7)
+ {
+ dlsSmp.dwStartloop = p.dwStartloop;
+ dlsSmp.dwEndloop = p.dwEndloop;
+ }
+ }
+ }
+ }
+ }
+ break;
+
+ #ifdef DLSINSTR_LOG
+ default:
+ {
+ char sdbg[5];
+ memcpy(sdbg, &header.id, 4);
+ sdbg[4] = 0;
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT("Unsupported SF2 chunk: {} ({} bytes)")(mpt::ToUnicode(mpt::Charset::ASCII, mpt::String::ReadAutoBuf(sdbg)), header.len.get()));
+ }
+ #endif
+ }
+ return true;
+}
+
+
+static int16 SF2TimeToDLS(int16 amount)
+{
+ int32 time = CDLSBank::DLS32BitTimeCentsToMilliseconds(static_cast<int32>(amount) << 16);
+ return static_cast<int16>(Clamp(time, 20, 20000) / 20);
+}
+
+
+// Convert all instruments to the DLS format
+bool CDLSBank::ConvertSF2ToDLS(SF2LoaderInfo &sf2info)
+{
+ if (m_Instruments.empty() || m_SamplesEx.empty())
+ return false;
+
+ const uint32 numInsts = static_cast<uint32>(sf2info.insts.GetLength() / sizeof(SFInst));
+ const uint32 numInstBags = static_cast<uint32>(sf2info.instBags.GetLength() / sizeof(SFInstBag));
+
+ std::vector<std::pair<uint16, uint16>> instruments; // instrument, key range
+ std::vector<SFGenList> generators;
+ std::vector<SFInstGenList> instrGenerators;
+ for(auto &dlsIns : m_Instruments)
+ {
+ instruments.clear();
+ DLSENVELOPE dlsEnv;
+ int32 instrAttenuation = 0;
+ int16 instrFinetune = 0;
+ // Default Envelope Values
+ dlsEnv.wVolAttack = 0;
+ dlsEnv.wVolDecay = 0;
+ dlsEnv.wVolRelease = 0;
+ dlsEnv.nVolSustainLevel = 128;
+ dlsEnv.nDefPan = 128;
+ // Load Preset Bags
+ sf2info.presetBags.Seek(dlsIns.wPresetBagNdx * sizeof(SFPresetBag));
+ for(uint32 ipbagcnt = 0; ipbagcnt < dlsIns.wPresetBagNum; ipbagcnt++)
+ {
+ // Load generators for each preset bag
+ SFPresetBag bag[2];
+ if(!sf2info.presetBags.ReadArray(bag))
+ break;
+ sf2info.presetBags.SkipBack(sizeof(SFPresetBag));
+
+ sf2info.presetGens.Seek(bag[0].wGenNdx * sizeof(SFGenList));
+ uint16 keyRange = 0xFFFF;
+ if(!sf2info.presetGens.ReadVector(generators, bag[1].wGenNdx - bag[0].wGenNdx))
+ continue;
+ for(const auto &gen : generators)
+ {
+ const int16 value = static_cast<int16>(gen.genAmount);
+ switch(gen.sfGenOper)
+ {
+ case SF2_GEN_ATTACKVOLENV:
+ dlsEnv.wVolAttack = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_DECAYVOLENV:
+ dlsEnv.wVolDecay = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_SUSTAINVOLENV:
+ // 0.1% units
+ if(gen.genAmount >= 0)
+ {
+ dlsEnv.nVolSustainLevel = SF2SustainLevelToLinear(gen.genAmount);
+ }
+ break;
+ case SF2_GEN_RELEASEVOLENV:
+ dlsEnv.wVolRelease = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_INSTRUMENT:
+ if(const auto instr = std::make_pair(gen.genAmount.get(), keyRange); !mpt::contains(instruments, instr))
+ instruments.push_back(instr);
+ keyRange = 0xFFFF;
+ break;
+ case SF2_GEN_KEYRANGE:
+ keyRange = gen.genAmount;
+ break;
+ case SF2_GEN_ATTENUATION:
+ instrAttenuation = -value;
+ break;
+ case SF2_GEN_COARSETUNE:
+ instrFinetune += value * 128;
+ break;
+ case SF2_GEN_FINETUNE:
+ instrFinetune += static_cast<int16>(Util::muldiv(static_cast<int8>(value), 128, 100));
+ break;
+#if 0
+ default:
+ Log("Ins %3d: bag %3d gen %3d: ", nIns, ipbagndx, ipgenndx);
+ Log("genoper=%d amount=0x%04X ", gen.sfGenOper, gen.genAmount);
+ Log((pSmp->ulBank & F_INSTRUMENT_DRUMS) ? "(drum)\n" : "\n");
+#endif
+ }
+ }
+ }
+ // Envelope
+ if (!(dlsIns.ulBank & F_INSTRUMENT_DRUMS))
+ {
+ m_Envelopes.push_back(dlsEnv);
+ dlsIns.nMelodicEnv = static_cast<uint32>(m_Envelopes.size());
+ }
+ // Load Instrument Bags
+ dlsIns.Regions.clear();
+ for(const auto & [nInstrNdx, keyRange] : instruments)
+ {
+ if(nInstrNdx >= numInsts)
+ continue;
+ sf2info.insts.Seek(nInstrNdx * sizeof(SFInst));
+ SFInst insts[2];
+ sf2info.insts.ReadArray(insts);
+ const uint32 numRegions = insts[1].wInstBagNdx - insts[0].wInstBagNdx;
+ dlsIns.Regions.reserve(dlsIns.Regions.size() + numRegions);
+ //Log("\nIns %3d, %2d regions:\n", nIns, pSmp->nRegions);
+ DLSREGION globalZone{};
+ globalZone.uUnityNote = 0xFF; // 0xFF means undefined -> use sample root note
+ globalZone.tuning = 100;
+ globalZone.sFineTune = instrFinetune;
+ globalZone.nWaveLink = Util::MaxValueOfType(globalZone.nWaveLink);
+ if(keyRange != 0xFFFF)
+ {
+ globalZone.uKeyMin = static_cast<uint8>(keyRange & 0xFF);
+ globalZone.uKeyMax = static_cast<uint8>(keyRange >> 8);
+ if(globalZone.uKeyMin > globalZone.uKeyMax)
+ std::swap(globalZone.uKeyMin, globalZone.uKeyMax);
+ } else
+ {
+ globalZone.uKeyMin = 0;
+ globalZone.uKeyMax = 127;
+ }
+ for(uint32 nRgn = 0; nRgn < numRegions; nRgn++)
+ {
+ uint32 ibagcnt = insts[0].wInstBagNdx + nRgn;
+ if(ibagcnt >= numInstBags)
+ break;
+ // Create a new envelope for drums
+ DLSENVELOPE *pDlsEnv = &dlsEnv;
+ if(!(dlsIns.ulBank & F_INSTRUMENT_DRUMS) && dlsIns.nMelodicEnv > 0 && dlsIns.nMelodicEnv <= m_Envelopes.size())
+ {
+ pDlsEnv = &m_Envelopes[dlsIns.nMelodicEnv - 1];
+ }
+
+ DLSREGION rgn = globalZone;
+
+ // Region Default Values
+ int32 regionAttn = 0;
+ // Load Generators
+ sf2info.instBags.Seek(ibagcnt * sizeof(SFInstBag));
+ SFInstBag bags[2];
+ sf2info.instBags.ReadArray(bags);
+ sf2info.instGens.Seek(bags[0].wGenNdx * sizeof(SFInstGenList));
+ uint16 lastOp = SF2_GEN_SAMPLEID;
+ int32 loopStart = 0, loopEnd = 0;
+ if(!sf2info.instGens.ReadVector(instrGenerators, bags[1].wGenNdx - bags[0].wGenNdx))
+ break;
+ for(const auto &gen : instrGenerators)
+ {
+ uint16 value = gen.genAmount;
+ lastOp = gen.sfGenOper;
+
+ switch(gen.sfGenOper)
+ {
+ case SF2_GEN_KEYRANGE:
+ {
+ uint8 keyMin = static_cast<uint8>(value & 0xFF);
+ uint8 keyMax = static_cast<uint8>(value >> 8);
+ if(keyMin > keyMax)
+ std::swap(keyMin, keyMax);
+ rgn.uKeyMin = std::max(rgn.uKeyMin, keyMin);
+ rgn.uKeyMax = std::min(rgn.uKeyMax, keyMax);
+ // There was no overlap between instrument region and preset region - skip it
+ if(rgn.uKeyMin > rgn.uKeyMax)
+ rgn.uKeyMin = rgn.uKeyMax = 0xFF;
+ }
+ break;
+ case SF2_GEN_UNITYNOTE:
+ if (value < 128) rgn.uUnityNote = static_cast<uint8>(value);
+ break;
+ case SF2_GEN_ATTACKVOLENV:
+ pDlsEnv->wVolAttack = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_DECAYVOLENV:
+ pDlsEnv->wVolDecay = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_SUSTAINVOLENV:
+ // 0.1% units
+ if(gen.genAmount >= 0)
+ {
+ pDlsEnv->nVolSustainLevel = SF2SustainLevelToLinear(gen.genAmount);
+ }
+ break;
+ case SF2_GEN_RELEASEVOLENV:
+ pDlsEnv->wVolRelease = SF2TimeToDLS(gen.genAmount);
+ break;
+ case SF2_GEN_PAN:
+ {
+ int32 pan = static_cast<int16>(value);
+ pan = std::clamp(Util::muldivr(pan + 500, 256, 1000), 0, 256);
+ rgn.panning = static_cast<int16>(pan);
+ pDlsEnv->nDefPan = mpt::saturate_cast<uint8>(pan);
+ }
+ break;
+ case SF2_GEN_ATTENUATION:
+ regionAttn = -static_cast<int16>(value);
+ break;
+ case SF2_GEN_SAMPLEID:
+ if (value < m_SamplesEx.size())
+ {
+ rgn.nWaveLink = value;
+ rgn.ulLoopStart = mpt::saturate_cast<uint32>(m_SamplesEx[value].dwStartloop + loopStart);
+ rgn.ulLoopEnd = mpt::saturate_cast<uint32>(m_SamplesEx[value].dwEndloop + loopEnd);
+ }
+ break;
+ case SF2_GEN_SAMPLEMODES:
+ value &= 3;
+ rgn.fuOptions &= uint16(~(DLSREGION_SAMPLELOOP|DLSREGION_PINGPONGLOOP|DLSREGION_SUSTAINLOOP));
+ if(value == 1)
+ rgn.fuOptions |= DLSREGION_SAMPLELOOP;
+ else if(value == 2)
+ rgn.fuOptions |= DLSREGION_SAMPLELOOP | DLSREGION_PINGPONGLOOP;
+ else if(value == 3)
+ rgn.fuOptions |= DLSREGION_SAMPLELOOP | DLSREGION_SUSTAINLOOP;
+ rgn.fuOptions |= DLSREGION_OVERRIDEWSMP;
+ break;
+ case SF2_GEN_KEYGROUP:
+ rgn.fuOptions |= (value & DLSREGION_KEYGROUPMASK);
+ break;
+ case SF2_GEN_COARSETUNE:
+ rgn.sFineTune += static_cast<int16>(value) * 128;
+ break;
+ case SF2_GEN_FINETUNE:
+ rgn.sFineTune += static_cast<int16>(Util::muldiv(static_cast<int8>(value), 128, 100));
+ break;
+ case SF2_GEN_SCALE_TUNING:
+ rgn.tuning = mpt::saturate_cast<uint8>(value);
+ break;
+ case SF2_GEN_START_LOOP_FINE:
+ loopStart += static_cast<int16>(value);
+ break;
+ case SF2_GEN_END_LOOP_FINE:
+ loopEnd += static_cast<int16>(value);
+ break;
+ case SF2_GEN_START_LOOP_COARSE:
+ loopStart += static_cast<int16>(value) * 32768;
+ break;
+ case SF2_GEN_END_LOOP_COARSE:
+ loopEnd += static_cast<int16>(value) * 32768;
+ break;
+ //default:
+ // Log(" gen=%d value=%04X\n", pgen->sfGenOper, pgen->genAmount);
+ }
+ }
+ int32 linearVol = DLS32BitRelativeGainToLinear(((instrAttenuation + regionAttn) * 65536) / 10) / 256;
+ Limit(linearVol, 16, 256);
+ rgn.usVolume = static_cast<uint16>(linearVol);
+
+ if(lastOp != SF2_GEN_SAMPLEID && nRgn == 0)
+ globalZone = rgn;
+ else if(!rgn.IsDummy())
+ dlsIns.Regions.push_back(rgn);
+ //Log("\n");
+ }
+ }
+ }
+ return true;
+}
+
+
+///////////////////////////////////////////////////////////////
+// Open: opens a DLS bank
+
+bool CDLSBank::Open(const mpt::PathString &filename)
+{
+ if(filename.empty()) return false;
+ m_szFileName = filename;
+ InputFile f(filename, SettingCacheCompleteFileBeforeLoading());
+ if(!f.IsValid()) return false;
+ return Open(GetFileReader(f));
+}
+
+
+bool CDLSBank::Open(FileReader file)
+{
+ uint32 nInsDef;
+
+ if(file.GetOptionalFileName())
+ m_szFileName = file.GetOptionalFileName().value();
+
+ file.Rewind();
+ size_t dwMemLength = file.GetLength();
+ size_t dwMemPos = 0;
+ if(!file.CanRead(256))
+ {
+ return false;
+ }
+
+ RIFFChunkID riff;
+ file.ReadStruct(riff);
+ // Check DLS sections embedded in RMI midi files
+ if(riff.id_RIFF == IFFID_RIFF && riff.id_DLS == IFFID_RMID)
+ {
+ while(file.ReadStruct(riff))
+ {
+ if(riff.id_RIFF == IFFID_RIFF && riff.id_DLS == IFFID_DLS)
+ {
+ file.SkipBack(sizeof(riff));
+ break;
+ }
+ uint32 len = riff.riff_len;
+ if((len % 2u) != 0)
+ len++;
+ file.SkipBack(4);
+ file.Skip(len);
+ }
+ }
+
+ // Check XDLS sections embedded in big endian IFF files (Miles Sound System)
+ if (riff.id_RIFF == IFFID_FORM)
+ {
+ do
+ {
+ if(riff.id_DLS == IFFID_XDLS)
+ {
+ file.ReadStruct(riff);
+ break;
+ }
+ uint32 len = mpt::bit_cast<uint32be>(riff.riff_len);
+ if((len % 2u) != 0)
+ len++;
+ file.SkipBack(4);
+ file.Skip(len);
+ } while(file.ReadStruct(riff));
+ }
+ if (riff.id_RIFF != IFFID_RIFF
+ || (riff.id_DLS != IFFID_DLS && riff.id_DLS != IFFID_MLS && riff.id_DLS != IFFID_sfbk)
+ || !file.CanRead(riff.riff_len - 4))
+ {
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", U_("Invalid DLS bank!"));
+ #endif
+ return false;
+ }
+ SF2LoaderInfo sf2info;
+ m_nType = (riff.id_DLS == IFFID_sfbk) ? SOUNDBANK_TYPE_SF2 : SOUNDBANK_TYPE_DLS;
+ m_dwWavePoolOffset = 0;
+ m_sf2version = 0;
+ m_Instruments.clear();
+ m_WaveForms.clear();
+ m_Envelopes.clear();
+ nInsDef = 0;
+ if (dwMemLength > 8 + riff.riff_len + dwMemPos) dwMemLength = 8 + riff.riff_len + dwMemPos;
+ bool applyPaddingToSampleChunk = true;
+ while(file.CanRead(sizeof(IFFCHUNK)))
+ {
+ IFFCHUNK chunkHeader;
+ file.ReadStruct(chunkHeader);
+ dwMemPos = file.GetPosition();
+ FileReader chunk = file.ReadChunk(chunkHeader.len);
+
+ bool applyPadding = (chunkHeader.len % 2u) != 0;
+
+ if(!chunk.LengthIsAtLeast(chunkHeader.len))
+ break;
+
+ switch(chunkHeader.id)
+ {
+ // DLS 1.0: Instruments Collection Header
+ case IFFID_colh:
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("colh ({} bytes)")(chunkHeader.len.get()));
+ #endif
+ if (m_Instruments.empty())
+ {
+ m_Instruments.resize(chunk.ReadUint32LE());
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT(" {} instruments")(m_Instruments.size()));
+ #endif
+ }
+ break;
+
+ // DLS 1.0: Instruments Pointers Table
+ case IFFID_ptbl:
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("ptbl ({} bytes)")(chunkHeader.len.get()));
+ #endif
+ if (m_WaveForms.empty())
+ {
+ PTBLChunk ptbl;
+ chunk.ReadStruct(ptbl);
+ chunk.Skip(ptbl.cbSize - 8);
+ uint32 cues = std::min(ptbl.cCues.get(), mpt::saturate_cast<uint32>(chunk.BytesLeft() / sizeof(uint32)));
+ m_WaveForms.reserve(cues);
+ for(uint32 i = 0; i < cues; i++)
+ {
+ m_WaveForms.push_back(chunk.ReadUint32LE());
+ }
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT(" {} waveforms")(m_WaveForms.size()));
+ #endif
+ }
+ break;
+
+ // DLS 1.0: LIST section
+ case IFFID_LIST:
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", U_("LIST"));
+ #endif
+ {
+ uint32 listid = chunk.ReadUint32LE();
+ if (((listid == IFFID_wvpl) && (m_nType & SOUNDBANK_TYPE_DLS))
+ || ((listid == IFFID_sdta) && (m_nType & SOUNDBANK_TYPE_SF2)))
+ {
+ m_dwWavePoolOffset = dwMemPos + 4;
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("Wave Pool offset: {}")(m_dwWavePoolOffset));
+ #endif
+ if(!applyPaddingToSampleChunk)
+ applyPadding = false;
+ break;
+ }
+
+ while (chunk.CanRead(12))
+ {
+ IFFCHUNK listHeader;
+ chunk.ReadStruct(listHeader);
+
+ if(!chunk.CanRead(listHeader.len))
+ break;
+
+ FileReader subData = chunk.GetChunkAt(chunk.GetPosition() - sizeof(IFFCHUNK), listHeader.len + 8);
+ FileReader listChunk = chunk.ReadChunk(listHeader.len);
+ if(listHeader.len % 2u)
+ chunk.Skip(1);
+ // DLS Instrument Headers
+ if (listHeader.id == IFFID_LIST && (m_nType & SOUNDBANK_TYPE_DLS))
+ {
+ uint32 subID = listChunk.ReadUint32LE();
+ if ((subID == IFFID_ins) && (nInsDef < m_Instruments.size()))
+ {
+ DLSINSTRUMENT &dlsIns = m_Instruments[nInsDef];
+ //Log("Instrument %d:\n", nInsDef);
+ dlsIns.Regions.push_back({});
+ UpdateInstrumentDefinition(&dlsIns, subData);
+ nInsDef++;
+ }
+ } else
+ // DLS/SF2 Bank Information
+ if (listid == IFFID_INFO && listHeader.len)
+ {
+ switch(listHeader.id)
+ {
+ case IFFID_ifil:
+ m_sf2version = listChunk.ReadUint16LE() << 16;
+ m_sf2version |= listChunk.ReadUint16LE();
+ if(m_sf2version >= 0x3'0000 && m_sf2version <= 0x4'FFFF)
+ {
+ // "SF3" / "SF4" with compressed samples. The padding of the sample chunk is now optional (probably because it was simply forgotten to be added)
+ applyPaddingToSampleChunk = false;
+ }
+ listChunk.Skip(2);
+ break;
+ case IFFID_INAM:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szBankName, listChunk.BytesLeft());
+ break;
+ case IFFID_IENG:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szEngineer, listChunk.BytesLeft());
+ break;
+ case IFFID_ICOP:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szCopyRight, listChunk.BytesLeft());
+ break;
+ case IFFID_ICMT:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szComments, listChunk.BytesLeft());
+ break;
+ case IFFID_ISFT:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szSoftware, listChunk.BytesLeft());
+ break;
+ case IFFID_ISBJ:
+ listChunk.ReadString<mpt::String::maybeNullTerminated>(m_BankInfo.szDescription, listChunk.BytesLeft());
+ break;
+ }
+ } else
+ if ((listid == IFFID_pdta) && (m_nType & SOUNDBANK_TYPE_SF2))
+ {
+ UpdateSF2PresetData(sf2info, listHeader, listChunk);
+ }
+ }
+ }
+ break;
+
+ #ifdef DLSBANK_LOG
+ default:
+ {
+ char sdbg[5];
+ memcpy(sdbg, &chunkHeader.id, 4);
+ sdbg[4] = 0;
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("Unsupported chunk: {} ({} bytes)")(mpt::ToUnicode(mpt::Charset::ASCII, mpt::String::ReadAutoBuf(sdbg)), chunkHeader.len.get()));
+ }
+ break;
+ #endif
+ }
+
+ if(applyPadding)
+ file.Skip(1);
+ }
+ // Build the ptbl is not present in file
+ if ((m_WaveForms.empty()) && (m_dwWavePoolOffset) && (m_nType & SOUNDBANK_TYPE_DLS) && (m_nMaxWaveLink > 0))
+ {
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("ptbl not present: building table ({} wavelinks)...")(m_nMaxWaveLink));
+ #endif
+ m_WaveForms.reserve(m_nMaxWaveLink);
+ file.Seek(m_dwWavePoolOffset);
+ while(m_WaveForms.size() < m_nMaxWaveLink && file.CanRead(sizeof(IFFCHUNK)))
+ {
+ IFFCHUNK chunk;
+ file.ReadStruct(chunk);
+ if (chunk.id == IFFID_LIST)
+ m_WaveForms.push_back(file.GetPosition() - m_dwWavePoolOffset - sizeof(IFFCHUNK));
+ file.Skip(chunk.len);
+ }
+#ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("Found {} waveforms")(m_WaveForms.size()));
+#endif
+ }
+ // Convert the SF2 data to DLS
+ if ((m_nType & SOUNDBANK_TYPE_SF2) && !m_SamplesEx.empty() && !m_Instruments.empty())
+ {
+ ConvertSF2ToDLS(sf2info);
+ }
+#ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", U_("DLS bank closed"));
+#endif
+ return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////
+// Extracts the Waveforms from a DLS/SF2 bank
+
+uint32 CDLSBank::GetRegionFromKey(uint32 nIns, uint32 nKey) const
+{
+ if(nIns >= m_Instruments.size())
+ return 0;
+ const DLSINSTRUMENT &dlsIns = m_Instruments[nIns];
+ for(uint32 rgn = 0; rgn < static_cast<uint32>(dlsIns.Regions.size()); rgn++)
+ {
+ const auto &region = dlsIns.Regions[rgn];
+ if(nKey < region.uKeyMin || nKey > region.uKeyMax)
+ continue;
+ if(region.nWaveLink == Util::MaxValueOfType(region.nWaveLink))
+ continue;
+ return rgn;
+ }
+ return 0;
+}
+
+
+bool CDLSBank::ExtractWaveForm(uint32 nIns, uint32 nRgn, std::vector<uint8> &waveData, uint32 &length) const
+{
+ waveData.clear();
+ length = 0;
+
+ if (nIns >= m_Instruments.size() || !m_dwWavePoolOffset)
+ {
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("ExtractWaveForm({}) failed: m_Instruments.size()={} m_dwWavePoolOffset={} m_WaveForms.size()={}")(nIns, m_Instruments.size(), m_dwWavePoolOffset, m_WaveForms.size()));
+ #endif
+ return false;
+ }
+ const DLSINSTRUMENT &dlsIns = m_Instruments[nIns];
+ if(nRgn >= dlsIns.Regions.size())
+ {
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("invalid waveform region: nIns={} nRgn={} pSmp->nRegions={}")(nIns, nRgn, dlsIns.Regions.size()));
+ #endif
+ return false;
+ }
+ uint32 nWaveLink = dlsIns.Regions[nRgn].nWaveLink;
+ if(nWaveLink >= m_WaveForms.size())
+ {
+ #ifdef DLSBANK_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSBANK", MPT_UFORMAT("Invalid wavelink id: nWaveLink={} nWaveForms={}")(nWaveLink, m_WaveForms.size()));
+ #endif
+ return false;
+ }
+
+ mpt::ifstream f(m_szFileName, std::ios::binary);
+ if(!f)
+ {
+ return false;
+ }
+
+ mpt::IO::Offset sampleOffset = mpt::saturate_cast<mpt::IO::Offset>(m_WaveForms[nWaveLink] + m_dwWavePoolOffset);
+ if(mpt::IO::SeekAbsolute(f, sampleOffset))
+ {
+ if (m_nType & SOUNDBANK_TYPE_SF2)
+ {
+ if (m_SamplesEx[nWaveLink].dwLen)
+ {
+ if (mpt::IO::SeekRelative(f, 8))
+ {
+ length = m_SamplesEx[nWaveLink].dwLen;
+ try
+ {
+ waveData.assign(length + 8, 0);
+ mpt::IO::ReadRaw(f, waveData.data(), length);
+ } catch(mpt::out_of_memory e)
+ {
+ mpt::delete_out_of_memory(e);
+ }
+ }
+ }
+ } else
+ {
+ LISTChunk chunk;
+ if(mpt::IO::Read(f, chunk))
+ {
+ if((chunk.id == IFFID_LIST) && (chunk.listid == IFFID_wave) && (chunk.len > 4))
+ {
+ length = chunk.len + 8;
+ try
+ {
+ waveData.assign(chunk.len + sizeof(IFFCHUNK), 0);
+ memcpy(waveData.data(), &chunk, sizeof(chunk));
+ mpt::IO::ReadRaw(f, &waveData[sizeof(chunk)], length - sizeof(chunk));
+ } catch(mpt::out_of_memory e)
+ {
+ mpt::delete_out_of_memory(e);
+ }
+ }
+ }
+ }
+ }
+ return !waveData.empty();
+}
+
+
+bool CDLSBank::ExtractSample(CSoundFile &sndFile, SAMPLEINDEX nSample, uint32 nIns, uint32 nRgn, int transpose) const
+{
+ std::vector<uint8> pWaveForm;
+ uint32 dwLen = 0;
+ bool ok, hasWaveform;
+
+ if(nIns >= m_Instruments.size())
+ return false;
+ const DLSINSTRUMENT &dlsIns = m_Instruments[nIns];
+ if(nRgn >= dlsIns.Regions.size())
+ return false;
+ if(!ExtractWaveForm(nIns, nRgn, pWaveForm, dwLen))
+ return false;
+ if(dwLen < 16)
+ return false;
+ ok = false;
+
+ FileReader wsmpChunk;
+ if (m_nType & SOUNDBANK_TYPE_SF2)
+ {
+ sndFile.DestroySample(nSample);
+ uint32 nWaveLink = dlsIns.Regions[nRgn].nWaveLink;
+ ModSample &sample = sndFile.GetSample(nSample);
+ if (sndFile.m_nSamples < nSample) sndFile.m_nSamples = nSample;
+ if (nWaveLink < m_SamplesEx.size())
+ {
+ const DLSSAMPLEEX &p = m_SamplesEx[nWaveLink];
+ #ifdef DLSINSTR_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" SF2 WaveLink #{}: {}Hz")(nWaveLink, p.dwSampleRate));
+ #endif
+ sample.Initialize();
+
+ FileReader chunk{mpt::as_span(pWaveForm.data(), dwLen)};
+ if(!p.compressed || !sndFile.ReadSampleFromFile(nSample, chunk, false, false))
+ {
+ sample.nLength = dwLen / 2;
+ SampleIO(
+ SampleIO::_16bit,
+ SampleIO::mono,
+ SampleIO::littleEndian,
+ SampleIO::signedPCM)
+ .ReadSample(sample, chunk);
+ }
+ sample.nLoopStart = dlsIns.Regions[nRgn].ulLoopStart;
+ sample.nLoopEnd = dlsIns.Regions[nRgn].ulLoopEnd;
+ sample.nC5Speed = p.dwSampleRate;
+ sample.RelativeTone = p.byOriginalPitch;
+ sample.nFineTune = p.chPitchCorrection;
+ if(p.szName[0])
+ sndFile.m_szNames[nSample] = mpt::String::ReadAutoBuf(p.szName);
+ else if(dlsIns.szName[0])
+ sndFile.m_szNames[nSample] = mpt::String::ReadAutoBuf(dlsIns.szName);
+ }
+ hasWaveform = sample.HasSampleData();
+ } else
+ {
+ FileReader file(mpt::as_span(pWaveForm.data(), dwLen));
+ hasWaveform = sndFile.ReadWAVSample(nSample, file, false, &wsmpChunk);
+ if(dlsIns.szName[0])
+ sndFile.m_szNames[nSample] = mpt::String::ReadAutoBuf(dlsIns.szName);
+ }
+ if (hasWaveform)
+ {
+ ModSample &sample = sndFile.GetSample(nSample);
+ const DLSREGION &rgn = dlsIns.Regions[nRgn];
+ sample.uFlags.reset(CHN_LOOP | CHN_PINGPONGLOOP | CHN_SUSTAINLOOP | CHN_PINGPONGSUSTAIN);
+ if (rgn.fuOptions & DLSREGION_SAMPLELOOP) sample.uFlags.set(CHN_LOOP);
+ if (rgn.fuOptions & DLSREGION_SUSTAINLOOP) sample.uFlags.set(CHN_SUSTAINLOOP);
+ if (rgn.fuOptions & DLSREGION_PINGPONGLOOP) sample.uFlags.set(CHN_PINGPONGLOOP);
+ if (sample.uFlags[CHN_LOOP | CHN_SUSTAINLOOP])
+ {
+ if (rgn.ulLoopEnd > rgn.ulLoopStart)
+ {
+ if (sample.uFlags[CHN_SUSTAINLOOP])
+ {
+ sample.nSustainStart = rgn.ulLoopStart;
+ sample.nSustainEnd = rgn.ulLoopEnd;
+ } else
+ {
+ sample.nLoopStart = rgn.ulLoopStart;
+ sample.nLoopEnd = rgn.ulLoopEnd;
+ }
+ } else
+ {
+ sample.uFlags.reset(CHN_LOOP|CHN_SUSTAINLOOP);
+ }
+ }
+ // WSMP chunk
+ {
+ uint32 usUnityNote = rgn.uUnityNote;
+ int sFineTune = rgn.sFineTune;
+ int lVolume = rgn.usVolume;
+
+ WSMPChunk wsmp;
+ if(!(rgn.fuOptions & DLSREGION_OVERRIDEWSMP) && wsmpChunk.IsValid() && wsmpChunk.Skip(sizeof(IFFCHUNK)) && wsmpChunk.ReadStructPartial(wsmp))
+ {
+ usUnityNote = wsmp.usUnityNote;
+ sFineTune = wsmp.sFineTune;
+ lVolume = DLS32BitRelativeGainToLinear(wsmp.lAttenuation) / 256;
+ if(wsmp.cSampleLoops)
+ {
+ WSMPSampleLoop loop;
+ wsmpChunk.Seek(sizeof(IFFCHUNK) + wsmp.cbSize);
+ wsmpChunk.ReadStruct(loop);
+ if(loop.ulLoopLength > 3)
+ {
+ sample.uFlags.set(CHN_LOOP);
+ //if (loop.ulLoopType) sample.uFlags |= CHN_PINGPONGLOOP;
+ sample.nLoopStart = loop.ulLoopStart;
+ sample.nLoopEnd = loop.ulLoopStart + loop.ulLoopLength;
+ }
+ }
+ } else if (m_nType & SOUNDBANK_TYPE_SF2)
+ {
+ usUnityNote = (usUnityNote < 0x80) ? usUnityNote : sample.RelativeTone;
+ sFineTune += sample.nFineTune;
+ }
+ #ifdef DLSINSTR_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT("WSMP: usUnityNote={}.{}, {}Hz (transp={})")(usUnityNote, sFineTune, sample.nC5Speed, transpose));
+ #endif
+ if (usUnityNote > 0x7F) usUnityNote = 60;
+ int steps = (60 + transpose - usUnityNote) * 128 + sFineTune;
+ sample.Transpose(steps * (1.0 / (12.0 * 128.0)));
+ sample.RelativeTone = 0;
+
+ Limit(lVolume, 16, 256);
+ sample.nGlobalVol = (uint8)(lVolume / 4); // 0-64
+ }
+ sample.nPan = GetPanning(nIns, nRgn);
+
+ sample.Convert(MOD_TYPE_IT, sndFile.GetType());
+ sample.PrecomputeLoops(sndFile, false);
+ ok = true;
+ }
+ return ok;
+}
+
+
+static uint16 ScaleEnvelope(uint32 time, float tempoScale)
+{
+ return std::max(mpt::saturate_round<uint16>(time * tempoScale), uint16(1));
+}
+
+
+bool CDLSBank::ExtractInstrument(CSoundFile &sndFile, INSTRUMENTINDEX nInstr, uint32 nIns, uint32 nDrumRgn) const
+{
+ uint32 minRegion, maxRegion, nEnv;
+
+ if (nIns >= m_Instruments.size())
+ return false;
+ const DLSINSTRUMENT &dlsIns = m_Instruments[nIns];
+ const bool isDrum = (dlsIns.ulBank & F_INSTRUMENT_DRUMS) && nDrumRgn != uint32_max;
+ if(isDrum)
+ {
+ if(nDrumRgn >= dlsIns.Regions.size())
+ return false;
+ minRegion = nDrumRgn;
+ maxRegion = nDrumRgn + 1;
+ nEnv = dlsIns.Regions[nDrumRgn].uPercEnv;
+ } else
+ {
+ if(dlsIns.Regions.empty())
+ return false;
+ minRegion = 0;
+ maxRegion = static_cast<uint32>(dlsIns.Regions.size());
+ nEnv = dlsIns.nMelodicEnv;
+ }
+#ifdef DLSINSTR_LOG
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT("DLS Instrument #{}: {}")(nIns, mpt::ToUnicode(mpt::Charset::ASCII, mpt::String::ReadAutoBuf(dlsIns.szName))));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" Bank=0x{} Instrument=0x{}")(mpt::ufmt::HEX0<4>(dlsIns.ulBank), mpt::ufmt::HEX0<4>(dlsIns.ulInstrument)));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" {} regions, nMelodicEnv={}")(dlsIns.Regions.size(), dlsIns.nMelodicEnv));
+ for (uint32 iDbg=0; iDbg<dlsIns.Regions.size(); iDbg++)
+ {
+ const DLSREGION *prgn = &dlsIns.Regions[iDbg];
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" Region {}:")(iDbg));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" WaveLink = {} (loop [{}, {}])")(prgn->nWaveLink, prgn->ulLoopStart, prgn->ulLoopEnd));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" Key Range: [{}, {}]")(prgn->uKeyMin, prgn->uKeyMax));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" fuOptions = 0x{}")(mpt::ufmt::HEX0<4>(prgn->fuOptions)));
+ MPT_LOG_GLOBAL(LogDebug, "DLSINSTR", MPT_UFORMAT(" usVolume = {}, Unity Note = {}")(prgn->usVolume, prgn->uUnityNote));
+ }
+#endif
+
+ ModInstrument *pIns = new (std::nothrow) ModInstrument();
+ if(pIns == nullptr)
+ {
+ return false;
+ }
+
+ if(sndFile.Instruments[nInstr])
+ {
+ sndFile.DestroyInstrument(nInstr, deleteAssociatedSamples);
+ }
+ // Initializes Instrument
+ if(isDrum)
+ {
+ uint32 key = dlsIns.Regions[nDrumRgn].uKeyMin;
+ if((key >= 24) && (key <= 84))
+ {
+ std::string s = szMidiPercussionNames[key-24];
+ if(!mpt::String::ReadAutoBuf(dlsIns.szName).empty())
+ {
+ s += MPT_AFORMAT(" ({})")(mpt::trim_right<std::string>(mpt::String::ReadAutoBuf(dlsIns.szName)));
+ }
+ pIns->name = s;
+ } else
+ {
+ pIns->name = mpt::String::ReadAutoBuf(dlsIns.szName);
+ }
+ } else
+ {
+ pIns->name = mpt::String::ReadAutoBuf(dlsIns.szName);
+ }
+ int transpose = 0;
+ if(isDrum)
+ {
+ for(uint32 iNoteMap = 0; iNoteMap < NOTE_MAX; iNoteMap++)
+ {
+ if(sndFile.GetType() & (MOD_TYPE_IT | MOD_TYPE_MID | MOD_TYPE_MPT))
+ {
+ // Format has instrument note mapping
+ if(dlsIns.Regions[nDrumRgn].tuning == 0)
+ pIns->NoteMap[iNoteMap] = NOTE_MIDDLEC;
+ else if (iNoteMap < dlsIns.Regions[nDrumRgn].uKeyMin)
+ pIns->NoteMap[iNoteMap] = (uint8)(dlsIns.Regions[nDrumRgn].uKeyMin + NOTE_MIN);
+ else if(iNoteMap > dlsIns.Regions[nDrumRgn].uKeyMax)
+ pIns->NoteMap[iNoteMap] = (uint8)(dlsIns.Regions[nDrumRgn].uKeyMax + NOTE_MIN);
+ } else
+ {
+ if(iNoteMap == dlsIns.Regions[nDrumRgn].uKeyMin)
+ {
+ transpose = (dlsIns.Regions[nDrumRgn].uKeyMin + (dlsIns.Regions[nDrumRgn].uKeyMax - dlsIns.Regions[nDrumRgn].uKeyMin) / 2) - 60;
+ }
+ }
+ }
+ }
+ pIns->nFadeOut = 1024;
+ pIns->nMidiProgram = (uint8)(dlsIns.ulInstrument & 0x7F) + 1;
+ pIns->nMidiChannel = (uint8)(isDrum ? 10 : 0);
+ pIns->wMidiBank = (uint16)(((dlsIns.ulBank & 0x7F00) >> 1) | (dlsIns.ulBank & 0x7F));
+ pIns->nNNA = NewNoteAction::NoteOff;
+ pIns->nDCT = DuplicateCheckType::Note;
+ pIns->nDNA = DuplicateNoteAction::NoteFade;
+ sndFile.Instruments[nInstr] = pIns;
+ uint32 nLoadedSmp = 0;
+ SAMPLEINDEX nextSample = 0;
+ // Extract Samples
+ std::vector<SAMPLEINDEX> RgnToSmp(dlsIns.Regions.size());
+ std::set<uint16> extractedSamples;
+ for(uint32 nRgn = minRegion; nRgn < maxRegion; nRgn++)
+ {
+ bool duplicateRegion = false;
+ SAMPLEINDEX nSmp = 0;
+ const DLSREGION &rgn = dlsIns.Regions[nRgn];
+ if(rgn.IsDummy())
+ continue;
+ // Elimitate Duplicate Regions
+ uint32 dupRegion;
+ for(dupRegion = minRegion; dupRegion < nRgn; dupRegion++)
+ {
+ const DLSREGION &rgn2 = dlsIns.Regions[dupRegion];
+ if(RgnToSmp[dupRegion] == 0 || rgn2.IsDummy())
+ continue;
+ // No need to extract the same sample data twice
+ const bool sameSample = (rgn2.nWaveLink == rgn.nWaveLink) && (rgn2.ulLoopEnd == rgn.ulLoopEnd) && (rgn2.ulLoopStart == rgn.ulLoopStart) && extractedSamples.count(rgn.nWaveLink);
+ // Candidate for stereo sample creation
+ const bool sameKeyRange = (rgn2.uKeyMin == rgn.uKeyMin) && (rgn2.uKeyMax == rgn.uKeyMax);
+ if(sameSample || sameKeyRange)
+ {
+ duplicateRegion = true;
+ if(!sameKeyRange)
+ nSmp = RgnToSmp[dupRegion];
+ break;
+ }
+ }
+ // Create a new sample
+ if (!duplicateRegion)
+ {
+ uint32 nmaxsmp = (m_nType & MOD_TYPE_XM) ? 16 : (NOTE_MAX - NOTE_MIN + 1);
+ if (nLoadedSmp >= nmaxsmp)
+ {
+ nSmp = RgnToSmp[nRgn - 1];
+ } else
+ {
+ nextSample = sndFile.GetNextFreeSample(nInstr, nextSample + 1);
+ if (nextSample == SAMPLEINDEX_INVALID) break;
+ if (nextSample > sndFile.GetNumSamples()) sndFile.m_nSamples = nextSample;
+ nSmp = nextSample;
+ nLoadedSmp++;
+ }
+ }
+
+ RgnToSmp[nRgn] = nSmp;
+ // Map all notes to the right sample
+ if(nSmp)
+ {
+ for(uint8 key = 0; key < NOTE_MAX; key++)
+ {
+ if(isDrum || (key >= rgn.uKeyMin && key <= rgn.uKeyMax))
+ {
+ pIns->Keyboard[key] = nSmp;
+ }
+ }
+ // Load the sample
+ if(!duplicateRegion || !sndFile.GetSample(nSmp).HasSampleData())
+ {
+ ExtractSample(sndFile, nSmp, nIns, nRgn, transpose);
+ extractedSamples.insert(rgn.nWaveLink);
+ }
+ } else if(duplicateRegion && sndFile.GetSample(RgnToSmp[dupRegion]).GetNumChannels() == 1)
+ {
+ // Try to combine stereo samples
+ const uint16 pan1 = GetPanning(nIns, nRgn), pan2 = GetPanning(nIns, dupRegion);
+ if((pan1 < 16 && pan2 >= 240) || (pan2 < 16 && pan1 >= 240))
+ {
+ ModSample &sample = sndFile.GetSample(RgnToSmp[dupRegion]);
+ ModSample sampleCopy = sample;
+ sampleCopy.pData.pSample = nullptr;
+ sampleCopy.uFlags.set(CHN_16BIT | CHN_STEREO);
+ if(!sampleCopy.AllocateSample())
+ continue;
+
+ const uint8 offsetOrig = (pan1 < pan2) ? 1 : 0;
+ const uint8 offsetNew = (pan1 < pan2) ? 0 : 1;
+
+ std::vector<uint8> pWaveForm;
+ uint32 dwLen = 0;
+ if(!ExtractWaveForm(nIns, nRgn, pWaveForm, dwLen))
+ continue;
+ extractedSamples.insert(rgn.nWaveLink);
+
+ // First copy over original channel
+ auto pDest = sampleCopy.sample16() + offsetOrig;
+ if(sample.uFlags[CHN_16BIT])
+ CopySample<SC::ConversionChain<SC::Convert<int16, int16>, SC::DecodeIdentity<int16>>>(pDest, sample.nLength, 2, sample.sample16(), sample.GetSampleSizeInBytes(), 1);
+ else
+ CopySample<SC::ConversionChain<SC::Convert<int16, int8>, SC::DecodeIdentity<int8>>>(pDest, sample.nLength, 2, sample.sample8(), sample.GetSampleSizeInBytes(), 1);
+ sample.FreeSample();
+
+ // Now read the other channel
+ if(m_SamplesEx[m_Instruments[nIns].Regions[nRgn].nWaveLink].compressed)
+ {
+ FileReader file{mpt::as_span(pWaveForm)};
+ if(sndFile.ReadSampleFromFile(nSmp, file, false, false))
+ {
+ pDest = sampleCopy.sample16() + offsetNew;
+ const SmpLength copyLength = std::min(sample.nLength, sampleCopy.nLength);
+ if(sample.uFlags[CHN_16BIT])
+ CopySample<SC::ConversionChain<SC::Convert<int16, int16>, SC::DecodeIdentity<int16>>>(pDest, copyLength, 2, sample.sample16(), sample.GetSampleSizeInBytes(), sample.GetNumChannels());
+ else
+ CopySample<SC::ConversionChain<SC::Convert<int16, int8>, SC::DecodeIdentity<int8>>>(pDest, copyLength, 2, sample.sample8(), sample.GetSampleSizeInBytes(), sample.GetNumChannels());
+ }
+ } else
+ {
+ SmpLength len = std::min(dwLen / 2u, sampleCopy.nLength);
+ const int16 *src = reinterpret_cast<int16 *>(pWaveForm.data());
+ int16 *dst = sampleCopy.sample16() + offsetNew;
+ CopySample<SC::ConversionChain<SC::Convert<int16, int16>, SC::DecodeIdentity<int16>>>(dst, len, 2, src, pWaveForm.size(), 1);
+ }
+ sample.FreeSample();
+ sample = sampleCopy;
+ }
+ }
+ }
+
+ float tempoScale = 1.0f;
+ if(sndFile.m_nTempoMode == TempoMode::Modern)
+ {
+ uint32 ticksPerBeat = sndFile.m_nDefaultRowsPerBeat * sndFile.m_nDefaultSpeed;
+ if(ticksPerBeat != 0)
+ tempoScale = ticksPerBeat / 24.0f;
+ }
+
+ // Initializes Envelope
+ if ((nEnv) && (nEnv <= m_Envelopes.size()))
+ {
+ const DLSENVELOPE &part = m_Envelopes[nEnv - 1];
+ // Volume Envelope
+ if ((part.wVolAttack) || (part.wVolDecay < 20*50) || (part.nVolSustainLevel) || (part.wVolRelease < 20*50))
+ {
+ pIns->VolEnv.dwFlags.set(ENV_ENABLED);
+ // Delay section
+ // -> DLS level 2
+ // Attack section
+ pIns->VolEnv.clear();
+ if (part.wVolAttack)
+ {
+ pIns->VolEnv.push_back(0, (uint8)(ENVELOPE_MAX / (part.wVolAttack / 2 + 2) + 8)); // /-----
+ pIns->VolEnv.push_back(ScaleEnvelope(part.wVolAttack, tempoScale), ENVELOPE_MAX); // |
+ } else
+ {
+ pIns->VolEnv.push_back(0, ENVELOPE_MAX);
+ }
+ // Hold section
+ // -> DLS Level 2
+ // Sustain Level
+ if (part.nVolSustainLevel > 0)
+ {
+ if (part.nVolSustainLevel < 128)
+ {
+ uint16 lStartTime = pIns->VolEnv.back().tick;
+ int32 lSusLevel = - DLS32BitRelativeLinearToGain(part.nVolSustainLevel << 9) / 65536;
+ int32 lDecayTime = 1;
+ if (lSusLevel > 0)
+ {
+ lDecayTime = (lSusLevel * (int32)part.wVolDecay) / 960;
+ for (uint32 i=0; i<7; i++)
+ {
+ int32 lFactor = 128 - (1 << i);
+ if (lFactor <= part.nVolSustainLevel) break;
+ int32 lev = - DLS32BitRelativeLinearToGain(lFactor << 9) / 65536;
+ if (lev > 0)
+ {
+ int32 ltime = (lev * (int32)part.wVolDecay) / 960;
+ if ((ltime > 1) && (ltime < lDecayTime))
+ {
+ uint16 tick = lStartTime + ScaleEnvelope(ltime, tempoScale);
+ if(tick > pIns->VolEnv.back().tick)
+ {
+ pIns->VolEnv.push_back(tick, (uint8)(lFactor / 2));
+ }
+ }
+ }
+ }
+ }
+
+ uint16 decayEnd = lStartTime + ScaleEnvelope(lDecayTime, tempoScale);
+ if (decayEnd > pIns->VolEnv.back().tick)
+ {
+ pIns->VolEnv.push_back(decayEnd, (uint8)((part.nVolSustainLevel+1) / 2));
+ }
+ }
+ pIns->VolEnv.dwFlags.set(ENV_SUSTAIN);
+ } else
+ {
+ pIns->VolEnv.dwFlags.set(ENV_SUSTAIN);
+ pIns->VolEnv.push_back(pIns->VolEnv.back().tick + 1u, pIns->VolEnv.back().value);
+ }
+ pIns->VolEnv.nSustainStart = pIns->VolEnv.nSustainEnd = (uint8)(pIns->VolEnv.size() - 1);
+ // Release section
+ if ((part.wVolRelease) && (pIns->VolEnv.back().value > 1))
+ {
+ int32 lReleaseTime = part.wVolRelease;
+ uint16 lStartTime = pIns->VolEnv.back().tick;
+ int32 lStartFactor = pIns->VolEnv.back().value;
+ int32 lSusLevel = - DLS32BitRelativeLinearToGain(lStartFactor << 10) / 65536;
+ int32 lDecayEndTime = (lReleaseTime * lSusLevel) / 960;
+ lReleaseTime -= lDecayEndTime;
+ if(pIns->VolEnv.nSustainEnd > 0)
+ pIns->VolEnv.nReleaseNode = pIns->VolEnv.nSustainEnd;
+ for (uint32 i=0; i<5; i++)
+ {
+ int32 lFactor = 1 + ((lStartFactor * 3) >> (i+2));
+ if ((lFactor <= 1) || (lFactor >= lStartFactor)) continue;
+ int32 lev = - DLS32BitRelativeLinearToGain(lFactor << 10) / 65536;
+ if (lev > 0)
+ {
+ int32 ltime = (((int32)part.wVolRelease * lev) / 960) - lDecayEndTime;
+ if ((ltime > 1) && (ltime < lReleaseTime))
+ {
+ uint16 tick = lStartTime + ScaleEnvelope(ltime, tempoScale);
+ if(tick > pIns->VolEnv.back().tick)
+ {
+ pIns->VolEnv.push_back(tick, (uint8)lFactor);
+ }
+ }
+ }
+ }
+ if (lReleaseTime < 1) lReleaseTime = 1;
+ auto releaseTicks = ScaleEnvelope(lReleaseTime, tempoScale);
+ pIns->VolEnv.push_back(lStartTime + releaseTicks, ENVELOPE_MIN);
+ if(releaseTicks > 0)
+ {
+ pIns->nFadeOut = 32768 / releaseTicks;
+ }
+ } else
+ {
+ pIns->VolEnv.push_back(pIns->VolEnv.back().tick + 1u, ENVELOPE_MIN);
+ }
+ }
+ }
+ if(isDrum)
+ {
+ // Create a default envelope for drums
+ pIns->VolEnv.dwFlags.reset(ENV_SUSTAIN);
+ if(!pIns->VolEnv.dwFlags[ENV_ENABLED])
+ {
+ pIns->VolEnv.dwFlags.set(ENV_ENABLED);
+ pIns->VolEnv.resize(4);
+ pIns->VolEnv[0] = EnvelopeNode(0, ENVELOPE_MAX);
+ pIns->VolEnv[1] = EnvelopeNode(ScaleEnvelope(5, tempoScale), ENVELOPE_MAX);
+ pIns->VolEnv[2] = EnvelopeNode(pIns->VolEnv[1].tick * 2u, ENVELOPE_MID);
+ pIns->VolEnv[3] = EnvelopeNode(pIns->VolEnv[2].tick * 2u, ENVELOPE_MIN); // 1 second max. for drums
+ }
+ }
+ pIns->Sanitize(MOD_TYPE_MPT);
+ pIns->Convert(MOD_TYPE_MPT, sndFile.GetType());
+ return true;
+}
+
+
+const char *CDLSBank::GetRegionName(uint32 nIns, uint32 nRgn) const
+{
+ if(nIns >= m_Instruments.size())
+ return nullptr;
+ const DLSINSTRUMENT &dlsIns = m_Instruments[nIns];
+ if(nRgn >= dlsIns.Regions.size())
+ return nullptr;
+
+ if (m_nType & SOUNDBANK_TYPE_SF2)
+ {
+ uint32 nWaveLink = dlsIns.Regions[nRgn].nWaveLink;
+ if (nWaveLink < m_SamplesEx.size())
+ {
+ return m_SamplesEx[nWaveLink].szName;
+ }
+ }
+ return nullptr;
+}
+
+
+uint16 CDLSBank::GetPanning(uint32 ins, uint32 region) const
+{
+ const DLSINSTRUMENT &dlsIns = m_Instruments[ins];
+ if(region >= std::size(dlsIns.Regions))
+ return 128;
+ const DLSREGION &rgn = dlsIns.Regions[region];
+ if(rgn.panning >= 0)
+ return static_cast<uint16>(rgn.panning);
+
+ if(dlsIns.ulBank & F_INSTRUMENT_DRUMS)
+ {
+ if(rgn.uPercEnv > 0 && rgn.uPercEnv <= m_Envelopes.size())
+ {
+ return m_Envelopes[rgn.uPercEnv - 1].nDefPan;
+ }
+ } else
+ {
+ if(dlsIns.nMelodicEnv > 0 && dlsIns.nMelodicEnv <= m_Envelopes.size())
+ {
+ return m_Envelopes[dlsIns.nMelodicEnv - 1].nDefPan;
+ }
+ }
+ return 128;
+}
+
+
+#else // !MODPLUG_TRACKER
+
+MPT_MSVC_WORKAROUND_LNK4221(Dlsbank)
+
+#endif // MODPLUG_TRACKER
+
+
+OPENMPT_NAMESPACE_END