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/*************************************************************************** |
/*************************************************************************** |
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* * |
* * |
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* libgig - C++ cross-platform Gigasampler format file loader library * |
* libgig - C++ cross-platform Gigasampler format file access library * |
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* * |
* * |
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* Copyright (C) 2003-2006 by Christian Schoenebeck * |
* Copyright (C) 2003-2006 by Christian Schoenebeck * |
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* <cuse@users.sourceforge.net> * |
* <cuse@users.sourceforge.net> * |
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#if WORDS_BIGENDIAN |
#if WORDS_BIGENDIAN |
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# define LIST_TYPE_3PRG 0x33707267 |
# define LIST_TYPE_3PRG 0x33707267 |
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# define LIST_TYPE_3EWL 0x3365776C |
# define LIST_TYPE_3EWL 0x3365776C |
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|
# define LIST_TYPE_3GRI 0x33677269 |
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|
# define LIST_TYPE_3GNL 0x33676E6C |
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# define CHUNK_ID_SMPL 0x736D706C |
# define CHUNK_ID_SMPL 0x736D706C |
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# define CHUNK_ID_3GIX 0x33676978 |
# define CHUNK_ID_3GIX 0x33676978 |
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# define CHUNK_ID_3EWA 0x33657761 |
# define CHUNK_ID_3EWA 0x33657761 |
37 |
# define CHUNK_ID_3LNK 0x336C6E6B |
# define CHUNK_ID_3LNK 0x336C6E6B |
38 |
# define CHUNK_ID_3EWG 0x33657767 |
# define CHUNK_ID_3EWG 0x33657767 |
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# define CHUNK_ID_EWAV 0x65776176 |
# define CHUNK_ID_EWAV 0x65776176 |
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|
# define CHUNK_ID_3GNM 0x33676E6D |
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#else // little endian |
#else // little endian |
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# define LIST_TYPE_3PRG 0x67727033 |
# define LIST_TYPE_3PRG 0x67727033 |
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# define LIST_TYPE_3EWL 0x6C776533 |
# define LIST_TYPE_3EWL 0x6C776533 |
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|
# define LIST_TYPE_3GRI 0x69726733 |
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|
# define LIST_TYPE_3GNL 0x6C6E6733 |
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# define CHUNK_ID_SMPL 0x6C706D73 |
# define CHUNK_ID_SMPL 0x6C706D73 |
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# define CHUNK_ID_3GIX 0x78696733 |
# define CHUNK_ID_3GIX 0x78696733 |
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# define CHUNK_ID_3EWA 0x61776533 |
# define CHUNK_ID_3EWA 0x61776533 |
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# define CHUNK_ID_3LNK 0x6B6E6C33 |
# define CHUNK_ID_3LNK 0x6B6E6C33 |
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# define CHUNK_ID_3EWG 0x67776533 |
# define CHUNK_ID_3EWG 0x67776533 |
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# define CHUNK_ID_EWAV 0x76617765 |
# define CHUNK_ID_EWAV 0x76617765 |
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|
# define CHUNK_ID_3GNM 0x6D6E6733 |
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#endif // WORDS_BIGENDIAN |
#endif // WORDS_BIGENDIAN |
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|
|
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/** Gigasampler specific classes and definitions */ |
/** Gigasampler specific classes and definitions */ |
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class Instrument; |
class Instrument; |
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class Sample; |
class Sample; |
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class Region; |
class Region; |
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class Group; |
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/** Encapsulates articulation information of a dimension region. |
/** Encapsulates articulation information of a dimension region. |
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* |
* |
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*/ |
*/ |
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class DimensionRegion : protected DLS::Sampler { |
class DimensionRegion : protected DLS::Sampler { |
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public: |
public: |
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uint8_t VelocityUpperLimit; ///< Defines the upper velocity value limit of a velocity split (only if an user defined limit was set, thus a value not equal to 128/NumberOfSplits, else this value is 0). |
uint8_t VelocityUpperLimit; ///< Defines the upper velocity value limit of a velocity split (only if an user defined limit was set, thus a value not equal to 128/NumberOfSplits, else this value is 0). Only for gig2, otherwise the DimensionUpperLimts are used instead. |
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Sample* pSample; ///< Points to the Sample which is assigned to the dimension region. |
Sample* pSample; ///< Points to the Sample which is assigned to the dimension region. |
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// Sample Amplitude EG/LFO |
// Sample Amplitude EG/LFO |
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uint16_t EG1PreAttack; ///< Preattack value of the sample amplitude EG (0 - 1000 permille). |
uint16_t EG1PreAttack; ///< Preattack value of the sample amplitude EG (0 - 1000 permille). |
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bool MSDecode; ///< Gigastudio flag: defines if Mid Side Recordings should be decoded. |
bool MSDecode; ///< Gigastudio flag: defines if Mid Side Recordings should be decoded. |
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uint16_t SampleStartOffset; ///< Number of samples the sample start should be moved (0 - 2000). |
uint16_t SampleStartOffset; ///< Number of samples the sample start should be moved (0 - 2000). |
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double SampleAttenuation; ///< Sample volume (calculated from DLS::Sampler::Gain) |
double SampleAttenuation; ///< Sample volume (calculated from DLS::Sampler::Gain) |
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uint8_t DimensionUpperLimits[8]; ///< gig3: defines the upper limit of the dimension values for this dimension region |
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// derived attributes from DLS::Sampler |
// derived attributes from DLS::Sampler |
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DLS::Sampler::UnityNote; |
DLS::Sampler::UnityNote; |
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*/ |
*/ |
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class Sample : public DLS::Sample { |
class Sample : public DLS::Sample { |
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public: |
public: |
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uint16_t SampleGroup; |
|
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uint32_t Manufacturer; ///< Specifies the MIDI Manufacturer's Association (MMA) Manufacturer code for the sampler intended to receive this file's waveform. If no particular manufacturer is to be specified, a value of 0 should be used. |
uint32_t Manufacturer; ///< Specifies the MIDI Manufacturer's Association (MMA) Manufacturer code for the sampler intended to receive this file's waveform. If no particular manufacturer is to be specified, a value of 0 should be used. |
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uint32_t Product; ///< Specifies the MIDI model ID defined by the manufacturer corresponding to the Manufacturer field. If no particular manufacturer's product is to be specified, a value of 0 should be used. |
uint32_t Product; ///< Specifies the MIDI model ID defined by the manufacturer corresponding to the Manufacturer field. If no particular manufacturer's product is to be specified, a value of 0 should be used. |
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uint32_t SamplePeriod; ///< Specifies the duration of time that passes during the playback of one sample in nanoseconds (normally equal to 1 / Samples Per Second, where Samples Per Second is the value found in the format chunk), don't bother to update this attribute, it won't be saved. |
uint32_t SamplePeriod; ///< Specifies the duration of time that passes during the playback of one sample in nanoseconds (normally equal to 1 / Samples Per Second, where Samples Per Second is the value found in the format chunk), don't bother to update this attribute, it won't be saved. |
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unsigned long Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer = NULL); |
unsigned long Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer = NULL); |
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unsigned long ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer = NULL); |
unsigned long ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer = NULL); |
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unsigned long Write(void* pBuffer, unsigned long SampleCount); |
unsigned long Write(void* pBuffer, unsigned long SampleCount); |
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Group* GetGroup() const; |
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virtual void UpdateChunks(); |
virtual void UpdateChunks(); |
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protected: |
protected: |
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static unsigned int Instances; ///< Number of instances of class Sample. |
static unsigned int Instances; ///< Number of instances of class Sample. |
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static buffer_t InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples. |
static buffer_t InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples. |
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|
Group* pGroup; ///< pointer to the Group this sample belongs to (always not-NULL) |
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unsigned long FrameOffset; ///< Current offset (sample points) in current sample frame (for decompression only). |
unsigned long FrameOffset; ///< Current offset (sample points) in current sample frame (for decompression only). |
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unsigned long* FrameTable; ///< For positioning within compressed samples only: stores the offset values for each frame. |
unsigned long* FrameTable; ///< For positioning within compressed samples only: stores the offset values for each frame. |
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unsigned long SamplePos; ///< For compressed samples only: stores the current position (in sample points). |
unsigned long SamplePos; ///< For compressed samples only: stores the current position (in sample points). |
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void ScanCompressedSample(); |
void ScanCompressedSample(); |
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friend class File; |
friend class File; |
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friend class Region; |
friend class Region; |
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friend class Group; // allow to modify protected member pGroup |
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}; |
}; |
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// TODO: <3dnl> list not used yet - not important though (just contains optional descriptions for the dimensions) |
// TODO: <3dnl> list not used yet - not important though (just contains optional descriptions for the dimensions) |
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friend class File; |
friend class File; |
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}; |
}; |
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// TODO: <3gnm> chunk not added yet (just contains the names of the sample groups) |
/** @brief Group of Gigasampler objects |
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* |
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* Groups help to organize a huge collection of Gigasampler objects. |
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* Groups are not concerned at all for the synthesis, but they help |
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* sound library developers when working on complex instruments with an |
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* instrument editor (as long as that instrument editor supports it ;-). |
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* |
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* At the moment, it seems as only samples can be grouped together in |
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* the Gigasampler format yet. If this is false in the meantime, please |
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* tell us ! |
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* |
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* A sample is always assigned to exactly one Group. This also means |
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* there is always at least one Group in a .gig file, no matter if you |
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* created one yet or not. |
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*/ |
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class Group { |
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public: |
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String Name; ///< Stores the name of this Group. |
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Sample* GetFirstSample(); |
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Sample* GetNextSample(); |
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void AddSample(Sample* pSample); |
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protected: |
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Group(File* file, RIFF::Chunk* ck3gnm); |
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virtual ~Group(); |
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virtual void UpdateChunks(); |
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void MoveAll(); |
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friend class File; |
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private: |
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File* pFile; |
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RIFF::Chunk* pNameChunk; |
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}; |
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/** Parses Gigasampler files and provides abstract access to the data. */ |
/** Parses Gigasampler files and provides abstract access to the data. */ |
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class File : protected DLS::File { |
class File : protected DLS::File { |
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public: |
public: |
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File(RIFF::File* pRIFF); |
File(RIFF::File* pRIFF); |
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Sample* GetFirstSample(progress_t* pProgress = NULL); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise. |
Sample* GetFirstSample(progress_t* pProgress = NULL); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise. |
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Sample* GetNextSample(); ///< Returns a pointer to the next <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. |
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Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise. |
|
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Sample* AddSample(); |
Sample* AddSample(); |
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void DeleteSample(Sample* pSample); |
void DeleteSample(Sample* pSample); |
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Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise. |
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Instrument* GetNextInstrument(); ///< Returns a pointer to the next <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. |
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Instrument* GetInstrument(uint index, progress_t* pProgress = NULL); |
Instrument* GetInstrument(uint index, progress_t* pProgress = NULL); |
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Instrument* AddInstrument(); |
Instrument* AddInstrument(); |
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void DeleteInstrument(Instrument* pInstrument); |
void DeleteInstrument(Instrument* pInstrument); |
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Group* GetFirstGroup(); ///< Returns a pointer to the first <i>Group</i> object of the file, <i>NULL</i> otherwise. |
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Group* GetNextGroup(); ///< Returns a pointer to the next <i>Group</i> object of the file, <i>NULL</i> otherwise. |
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Group* GetGroup(uint index); |
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Group* AddGroup(); |
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void DeleteGroup(Group* pGroup); |
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virtual ~File(); |
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protected: |
protected: |
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// overridden protected methods from DLS::File |
// overridden protected methods from DLS::File |
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virtual void LoadSamples(); |
virtual void LoadSamples(); |
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virtual void LoadInstruments(); |
virtual void LoadInstruments(); |
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virtual void LoadGroups(); |
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// own protected methods |
// own protected methods |
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virtual void LoadSamples(progress_t* pProgress); |
virtual void LoadSamples(progress_t* pProgress); |
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virtual void LoadInstruments(progress_t* pProgress); |
virtual void LoadInstruments(progress_t* pProgress); |
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friend class Region; |
friend class Region; |
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friend class Sample; |
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friend class Group; // so Group can access protected member pRIFF |
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private: |
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std::list<Group*>* pGroups; |
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std::list<Group*>::iterator GroupsIterator; |
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}; |
}; |
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|
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/** Will be thrown whenever a gig specific error occurs while trying to access a Gigasampler File. */ |
/** Will be thrown whenever a gig specific error occurs while trying to access a Gigasampler File. */ |