/usr/include/DLS.h is in libgig-dev 3.3.0-3.
This file is owned by root:root, with mode 0o644.
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* *
* libgig - C++ cross-platform Gigasampler format file access library *
* *
* Copyright (C) 2003-2009 by Christian Schoenebeck *
* <cuse@users.sourceforge.net> *
* *
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
* MA 02111-1307 USA *
***************************************************************************/
#ifndef __DLS_H__
#define __DLS_H__
#include "RIFF.h"
#if WORDS_BIGENDIAN
# define RIFF_TYPE_DLS 0x444C5320
# define LIST_TYPE_INFO 0x494E464F
# define LIST_TYPE_WVPL 0x7776706C
# define LIST_TYPE_DWPL 0x6477706C ///< Seen on some files instead of a wvpl list chunk.
# define LIST_TYPE_WAVE 0x77617665
# define LIST_TYPE_LINS 0X6C696E73
# define LIST_TYPE_INS 0X696E7320
# define LIST_TYPE_LRGN 0x6C72676E
# define LIST_TYPE_LART 0x6C617274
# define LIST_TYPE_LAR2 0x6C617232
# define LIST_TYPE_RGN 0x72676E20
# define LIST_TYPE_RGN2 0x72676E32
# define CHUNK_ID_IARL 0x4941524C
# define CHUNK_ID_IART 0x49415254
# define CHUNK_ID_ICMS 0x49434D53
# define CHUNK_ID_ICMT 0x49434D54
# define CHUNK_ID_ICOP 0x49434F50
# define CHUNK_ID_ICRD 0x49435244
# define CHUNK_ID_IENG 0x49454E47
# define CHUNK_ID_IGNR 0x49474E52
# define CHUNK_ID_IKEY 0x494B4559
# define CHUNK_ID_IMED 0x494D4544
# define CHUNK_ID_INAM 0x494E414D
# define CHUNK_ID_IPRD 0x49505244
# define CHUNK_ID_ISBJ 0x4953424A
# define CHUNK_ID_ISFT 0x49534654
# define CHUNK_ID_ISRC 0x49535243
# define CHUNK_ID_ISRF 0x49535246
# define CHUNK_ID_ITCH 0x49544348
# define CHUNK_ID_VERS 0x76657273
# define CHUNK_ID_DLID 0x646C6964
# define CHUNK_ID_FMT 0x666D7420
# define CHUNK_ID_DATA 0x64617461
# define CHUNK_ID_INSH 0x696E7368
# define CHUNK_ID_RGNH 0x72676E68
# define CHUNK_ID_WLNK 0x776C6E6B
# define CHUNK_ID_PTBL 0x7074626C
# define CHUNK_ID_WSMP 0x77736D70
# define CHUNK_ID_COLH 0x636F6C68
# define CHUNK_ID_ARTL 0x6172746C
# define CHUNK_ID_ART2 0x61727432
#else // little endian
# define RIFF_TYPE_DLS 0x20534C44
# define LIST_TYPE_INFO 0x4F464E49
# define LIST_TYPE_WVPL 0x6C707677
# define LIST_TYPE_DWPL 0x6C707764 ///< Seen on some files instead of a wvpl list chunk.
# define LIST_TYPE_WAVE 0x65766177
# define LIST_TYPE_LINS 0X736E696C
# define LIST_TYPE_INS 0X20736E69
# define LIST_TYPE_LRGN 0x6E67726C
# define LIST_TYPE_LART 0x7472616C
# define LIST_TYPE_LAR2 0x3272616C
# define LIST_TYPE_RGN 0x206E6772
# define LIST_TYPE_RGN2 0x326E6772
# define CHUNK_ID_IARL 0x4C524149
# define CHUNK_ID_IART 0x54524149
# define CHUNK_ID_ICMS 0x534D4349
# define CHUNK_ID_ICMT 0x544D4349
# define CHUNK_ID_ICOP 0x504F4349
# define CHUNK_ID_ICRD 0x44524349
# define CHUNK_ID_IENG 0x474E4549
# define CHUNK_ID_IGNR 0x524E4749
# define CHUNK_ID_IKEY 0x59454B49
# define CHUNK_ID_IMED 0x44454D49
# define CHUNK_ID_INAM 0x4D414E49
# define CHUNK_ID_IPRD 0x44525049
# define CHUNK_ID_ISBJ 0x4A425349
# define CHUNK_ID_ISFT 0x54465349
# define CHUNK_ID_ISRC 0x43525349
# define CHUNK_ID_ISRF 0x46525349
# define CHUNK_ID_ITCH 0x48435449
# define CHUNK_ID_VERS 0x73726576
# define CHUNK_ID_DLID 0x64696C64
# define CHUNK_ID_FMT 0x20746D66
# define CHUNK_ID_DATA 0x61746164
# define CHUNK_ID_INSH 0x68736E69
# define CHUNK_ID_RGNH 0x686E6772
# define CHUNK_ID_WLNK 0x6B6E6C77
# define CHUNK_ID_PTBL 0x6C627470
# define CHUNK_ID_WSMP 0x706D7377
# define CHUNK_ID_COLH 0x686C6F63
# define CHUNK_ID_ARTL 0x6C747261
# define CHUNK_ID_ART2 0x32747261
#endif // WORDS_BIGENDIAN
#define DLS_WAVE_FORMAT_PCM 0x0001
//TODO: no support for conditional chunks <cdl> yet
/** DLS specific classes and definitions */
namespace DLS {
typedef std::string String;
/** Quadtuple version number ("major.minor.release.build"). */
struct version_t {
uint16_t minor;
uint16_t major;
uint16_t build;
uint16_t release;
};
/** Every subject of an DLS file and the file itself can have an unique, computer generated ID. */
struct dlsid_t {
uint32_t ulData1;
uint16_t usData2;
uint16_t usData3;
uint8_t abData[8];
};
/** Connection Sources */
typedef enum {
// Modulator 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 Controller Sources
conn_src_cc1 = 0x0081,
conn_src_cc7 = 0x0087,
conn_src_cc10 = 0x008A,
conn_src_cc11 = 0x008B,
conn_src_cc91 = 0x00DB,
conn_src_cc93 = 0x00DD,
// Registered Parameter Numbers
conn_src_rpn0 = 0x0100,
conn_src_rpn1 = 0x0101,
conn_src_rpn2 = 0x0102
} conn_src_t;
/** Connection Destinations */
typedef enum {
// Generic Destinations
conn_dst_none = 0x0000,
conn_dst_gain = 0x0001,
conn_dst_reserved = 0x0002,
conn_dst_pitch = 0x0003,
conn_dst_pan = 0x0004,
conn_dst_keynumber = 0x0005,
// Channel Output Destinations
conn_dst_left = 0x0010,
conn_dst_right = 0x0011,
conn_dst_center = 0x0012,
conn_dst_lfe_channel = 0x0013,
conn_dst_leftrear = 0x0014,
conn_dst_rightrear = 0x0015,
conn_dst_chorus = 0x0080,
conn_dst_reverb = 0x0081,
// Modulator LFO Destinations
conn_dst_lfo_frequency = 0x0104,
conn_dst_lfo_startdelay = 0x0105,
// Vibrato LFO Destinations
conn_dst_vib_frequency = 0x0114,
conn_dst_vib_startdelay = 0x0115,
// EG 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,
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,
// Filter Destinations
conn_dst_filter_cutoff = 0x0500,
conn_dst_filter_q = 0x0501
} conn_dst_t;
/** Connection Transforms */
typedef enum {
conn_trn_none = 0x0000,
conn_trn_concave = 0x0001,
conn_trn_convex = 0x0002,
conn_trn_switch = 0x0003
} conn_trn_t;
/** Lower and upper limit of a range. */
struct range_t {
uint16_t low; ///< Low value of range.
uint16_t high; ///< High value of range.
};
/** Defines Sample Loop Points. */
struct sample_loop_t {
uint32_t Size; ///< For internal usage only: usually reflects exactly @c sizeof(sample_loop_t), otherwise if the value is larger then the DLS format was extended!
uint32_t LoopType; ///< Defines how the waveform samples will be looped (appropriate loop types for the gig format are defined by gig::loop_type_t).
uint32_t LoopStart; ///< The start value specifies the offset (in sample points) in the waveform data of the first sample point to be played in the loop.
uint32_t LoopLength; ///< Length of the looping area (in sample points).
};
// just symbol prototyping
class File;
class Instrument;
class Region;
class Sample;
/** Defines a connection within the synthesis model. */
class Connection {
public:
conn_src_t Source;
conn_trn_t SourceTransform;
bool SourceInvert;
bool SourceBipolar;
conn_src_t Control;
conn_trn_t ControlTransform;
bool ControlInvert;
bool ControlBipolar;
conn_dst_t Destination;
conn_trn_t DestinationTransform;
uint32_t Scale;
protected:
struct conn_block_t {
uint16_t source;
uint16_t control;
uint16_t destination;
uint16_t transform;
uint32_t scale;
};
Connection() {}
void Init(conn_block_t* Header);
conn_block_t ToConnBlock();
virtual ~Connection() {}
friend class Articulation;
};
/** Provides access to the defined connections used for the synthesis model. */
class Articulation {
public:
Connection* pConnections; ///< Points to the beginning of a <i>Connection</i> array.
uint32_t Connections; ///< Reflects the number of Connections.
Articulation(RIFF::Chunk* artl);
virtual ~Articulation();
virtual void UpdateChunks();
protected:
RIFF::Chunk* pArticulationCk;
uint32_t HeaderSize;
};
/** Abstract base class for classes that provide articulation information (thus for <i>Instrument</i> and <i>Region</i> class). */
class Articulator {
public:
Articulator(RIFF::List* ParentList);
Articulation* GetFirstArticulation();
Articulation* GetNextArticulation();
virtual void UpdateChunks();
protected:
typedef std::list<Articulation*> ArticulationList;
RIFF::List* pParentList;
ArticulationList* pArticulations;
ArticulationList::iterator ArticulationsIterator;
void LoadArticulations();
virtual ~Articulator();
};
/** Optional information for DLS files, instruments, samples, etc. */
class Info {
public:
String Name; ///< <INAM-ck>. Stores the title of the subject of the file, such as, Seattle From Above.
String ArchivalLocation; ///< <IARL-ck>. Indicates where the subject of the file is stored.
String CreationDate; ///< <ICRD-ck>. Specifies the date the subject of the file was created. List dates in yyyy-mm-dd format.
String Comments; ///< <ICMT-ck>. Provides general comments about the file or the subject of the file. Sentences might end with semicolon.
String Product; ///< <IPRD-ck>. Specifies the name of the title the file was originally intended for, such as World Ruler V.
String Copyright; ///< <ICOP-ck>. Records the copyright information for the file.
String Artists; ///< <IART-ck>. Lists the artist of the original subject of the file.
String Genre; ///< <IGNR-ck>. Descirbes the original work, such as, Jazz, Classic, Rock, Techno, Rave, etc.
String Keywords; ///< <IKEY-ck>. Provides a list of keywords that refer to the file or subject of the file. Keywords are separated with semicolon and blank, e.g., FX; death; murder.
String Engineer; ///< <IENG-ck>. Stores the name of the engineer who worked on the file. Multiple engineer names are separated by semicolon and blank, e.g, Smith, John; Adams, Joe.
String Technician; ///< <ITCH-ck>. Identifies the technician who sampled the subject file.
String Software; ///< <ISFT-ck>. Identifies the name of the sofware package used to create the file.
String Medium; ///< <IMED-ck>. Describes the original subject of the file, such as, record, CD, and so forth.
String Source; ///< <ISRC-ck>. Identifies the name of the person or organization who supplied the original subject of the file.
String SourceForm; ///< <ISRF-ck>. Identifies the original form of the material that was digitized, such as record, sampling CD, TV sound track. This is not neccessarily the same as <i>Medium</i>.
String Commissioned; ///< <ICMS-ck>. Lists the name of the person or organization that commissioned the subject of the file, e.g., Pope Julian II.
String Subject; ///< <ISBJ-ck>. Describes the contents of the file.
bool UseFixedLengthStrings; ///< @deprecated Not used anymore, use SetFixedStringLengths() instead.
struct string_length_t {
uint32_t chunkId;
int length;
};
Info(RIFF::List* list);
void SetFixedStringLengths(const string_length_t* lengths);
virtual ~Info();
virtual void UpdateChunks();
private:
RIFF::List* pResourceListChunk;
const string_length_t* pFixedStringLengths; ///< List of IDs and string lengths for strings that should be stored in a fixed length format. This is used for gig files, not for ordinary DLS files.
static void LoadString(uint32_t ChunkID, RIFF::List* lstINFO, String& s);
void SaveString(uint32_t ChunkID, RIFF::List* lstINFO, const String& s, const String& sDefault);
};
/** Abstract base class which encapsulates data structures which all DLS resources are able to provide. */
class Resource {
public:
Info* pInfo; ///< Points (in any case) to an <i>Info</i> object, providing additional, optional infos and comments.
dlsid_t* pDLSID; ///< Points to a <i>dlsid_t</i> structure if the file provided a DLS ID else is <i>NULL</i>.
Resource* GetParent() { return pParent; }
virtual void UpdateChunks();
void GenerateDLSID();
protected:
Resource* pParent;
RIFF::List* pResourceList;
Resource(Resource* Parent, RIFF::List* lstResource);
virtual ~Resource();
};
/** Abstract base class which provides mandatory informations about sample players in general. */
class Sampler {
public:
uint8_t UnityNote;
int16_t FineTune;
int32_t Gain; ///< @deprecated Don't alter directly, use SetGain() instead!
bool NoSampleDepthTruncation;
bool NoSampleCompression;
uint32_t SampleLoops; ///< Reflects the number of sample loops.
sample_loop_t* pSampleLoops; ///< Points to the beginning of a sample loop array, or is NULL if there are no loops defined.
void AddSampleLoop(sample_loop_t* pLoopDef);
void DeleteSampleLoop(sample_loop_t* pLoopDef);
virtual void SetGain(int32_t gain);
virtual void UpdateChunks();
protected:
RIFF::List* pParentList;
uint32_t uiHeaderSize;
uint32_t SamplerOptions;
Sampler(RIFF::List* ParentList);
virtual ~Sampler();
};
/** @brief Encapsulates sample waves used for playback.
*
* In case you created a new sample with File::AddSample(), you should
* first update all attributes with the desired meta informations
* (amount of channels, bit depth, sample rate, etc.), then call
* Resize() with the desired sample size. The latter will create
* the mandatory RIFF chunk which will hold the sample wave data.
*/
class Sample : public Resource {
public:
uint16_t FormatTag; ///< Format ID of the waveform data (should be DLS_WAVE_FORMAT_PCM for DLS1 compliant files, this is also the default value if Sample was created with Instrument::AddSample()).
uint16_t Channels; ///< Number of channels represented in the waveform data, e.g. 1 for mono, 2 for stereo (defaults to 1=mono if Sample was created with Instrument::AddSample() previously).
uint32_t SamplesPerSecond; ///< Sampling rate at which each channel should be played (defaults to 44100 if Sample was created with Instrument::AddSample() previously).
uint32_t AverageBytesPerSecond; ///< The average number of bytes per second at which the waveform data should be transferred (Playback software can estimate the buffer size using this value).
uint16_t BlockAlign; ///< The block alignment (in bytes) of the waveform data. Playback software needs to process a multiple of <i>BlockAlign</i> bytes of data at a time, so the value of <i>BlockAlign</i> can be used for buffer alignment.
uint16_t BitDepth; ///< Size of each sample per channel (only if known sample data format is used, 0 otherwise).
unsigned long SamplesTotal; ///< Reflects total number of sample points (only if known sample data format is used, 0 otherwise), do not bother to change this value, it will not be saved.
uint FrameSize; ///< Reflects the size (in bytes) of one single sample point (only if known sample data format is used, 0 otherwise). <b>Caution:</b> with the current version of libgig you have to upate this field by yourself whenever you change one of the following fields: Channels, BitDepth ! Ignoring this might lead to undesired behavior when i.e. calling Resize(), SetPos(), Write() or Read().
void* LoadSampleData();
void ReleaseSampleData();
unsigned long GetSize();
void Resize(int iNewSize);
unsigned long SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);
unsigned long Read(void* pBuffer, unsigned long SampleCount);
unsigned long Write(void* pBuffer, unsigned long SampleCount);
virtual void UpdateChunks();
protected:
RIFF::List* pWaveList;
RIFF::Chunk* pCkData;
RIFF::Chunk* pCkFormat;
unsigned long ulWavePoolOffset; // needed for comparison with the wave pool link table, thus the link to instruments
Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset);
virtual ~Sample();
friend class File;
friend class Region; // Region has to compare the wave pool offset to get its sample
};
/** Defines <i>Region</i> information of an <i>Instrument</i>. */
class Region : public Resource, public Articulator, public Sampler {
public:
range_t KeyRange; ///< @deprecated Only read, don't write! Use SetKeyRange() instead.
range_t VelocityRange;
uint16_t KeyGroup;
uint16_t Layer;
bool SelfNonExclusive;
bool PhaseMaster;
uint16_t PhaseGroup;
bool MultiChannel;
uint32_t Channel;
Sample* GetSample();
void SetSample(Sample* pSample);
virtual void SetKeyRange(uint16_t Low, uint16_t High);
virtual void UpdateChunks();
protected:
RIFF::List* pCkRegion;
uint32_t WavePoolTableIndex; // index in the wave pool table to the sample wave this region is linked to
Sample* pSample; // every region refers to exactly one sample
uint16_t FormatOptionFlags;
uint16_t WaveLinkOptionFlags;
Region(Instrument* pInstrument, RIFF::List* rgnList);
virtual ~Region();
friend class Instrument;
};
/** Provides all neccessary information for the synthesis of a DLS <i>Instrument</i>. */
class Instrument : public Resource, public Articulator {
public:
bool IsDrum; ///< Indicates if the <i>Instrument</i> is a drum type, as they differ in the synthesis model of DLS from melodic instruments.
uint16_t MIDIBank; ///< Reflects combination of <i>MIDIBankCoarse</i> and <i>MIDIBankFine</i> (bank 1 - bank 16384). Do not change this value, it will not be saved! Change MIDIBankCoarse and MIDIBankFine instead (we might change that in future).
uint8_t MIDIBankCoarse; ///< Reflects the MIDI Bank number for MIDI Control Change 0 (bank 1 - 128).
uint8_t MIDIBankFine; ///< Reflects the MIDI Bank number for MIDI Control Change 32 (bank 1 - 128).
uint32_t MIDIProgram; ///< Specifies the MIDI Program Change Number this Instrument should be assigned to.
uint32_t Regions; ///< Reflects the number of <i>Region</i> defintions this Instrument has.
Region* GetFirstRegion();
Region* GetNextRegion();
Region* AddRegion();
void DeleteRegion(Region* pRegion);
virtual void UpdateChunks();
protected:
typedef std::list<Region*> RegionList;
struct midi_locale_t {
uint32_t bank;
uint32_t instrument;
};
RIFF::List* pCkInstrument;
RegionList* pRegions;
RegionList::iterator RegionsIterator;
Instrument(File* pFile, RIFF::List* insList);
virtual void LoadRegions();
virtual ~Instrument();
friend class File;
friend class Region;
private:
void MoveRegion(Region* pSrc, Region* pDst);
};
/** Parses DLS Level 1 and 2 compliant files and provides abstract access to the data. */
class File : public Resource {
public:
version_t* pVersion; ///< Points to a <i>version_t</i> structure if the file provided a version number else is set to <i>NULL</i>.
uint32_t Instruments; ///< Reflects the number of available <i>Instrument</i> objects.
File();
File(RIFF::File* pRIFF);
Sample* GetFirstSample(); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise.
Sample* GetNextSample(); ///< Returns a pointer to the next <i>Sample</i> object of the file, <i>NULL</i> otherwise.
Sample* AddSample();
void DeleteSample(Sample* pSample);
Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
Instrument* GetNextInstrument(); ///< Returns a pointer to the next <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
Instrument* AddInstrument();
void DeleteInstrument(Instrument* pInstrument);
virtual void UpdateChunks();
virtual void Save(const String& Path);
virtual void Save();
virtual ~File();
protected:
typedef std::list<Sample*> SampleList;
typedef std::list<Instrument*> InstrumentList;
RIFF::File* pRIFF;
std::list<RIFF::File*> ExtensionFiles;
SampleList* pSamples;
SampleList::iterator SamplesIterator;
InstrumentList* pInstruments;
InstrumentList::iterator InstrumentsIterator;
uint32_t WavePoolHeaderSize;
uint32_t WavePoolCount;
uint32_t* pWavePoolTable;
uint32_t* pWavePoolTableHi;
bool b64BitWavePoolOffsets;
virtual void LoadSamples();
virtual void LoadInstruments();
void __ensureMandatoryChunksExist();
friend class Region; // Region has to look in the wave pool table to get its sample
private:
void __UpdateWavePoolTableChunk();
void __UpdateWavePoolTable();
};
/**
* Will be thrown whenever a DLS specific error occurs while trying to
* access a DLS File. Note: In your application you should better catch
* for RIFF::Exception rather than this one, except you explicitly want
* to catch and handle DLS::Exception and RIFF::Exception independently,
* which usually shouldn't be necessary though.
*/
class Exception : public RIFF::Exception {
public:
Exception(String Message);
void PrintMessage();
};
String libraryName();
String libraryVersion();
} // namespace DLS
#endif // __DLS_H__
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