Handler for a VST 3 Preset File. More...

#include <vstpresetfile.h>

Classes
struct	Entry
	Internal structure used for chunk handling. More...

Public Member Functions
	PresetFile (IBStream *stream)
	Constructor of Preset file based on a stream.

virtual	~PresetFile ()

IBStream *	getStream () const
	Returns the associated stream.

const FUID &	getClassID () const
	Returns the associated classID (component ID: Processor part (not the controller!)).

void	setClassID (const FUID &uid)
	Sets the associated classID (component ID: Processor part (not the controller!)).

const Entry *	getEntry (ChunkType which) const
	Returns an entry for a given chunk type.

const Entry *	getLastEntry () const
	Returns the last available entry.

int32	getEntryCount () const
	Returns the number of total entries in the current stream.

const Entry &	at (int32 index) const
	Returns the entry at a given position.

bool	contains (ChunkType which) const
	Checks if a given chunk type exist in the stream.

bool	readChunkList ()
	Reads and build the chunk list (including the header chunk).

bool	writeHeader ()
	Writes into the stream the main header.

bool	writeChunkList ()
	Writes into the stream the chunk list (should be at the end).

bool	readMetaInfo (char *xmlBuffer, int32 &size)
	Reads the meta XML info and its size, the size could be retrieved by passing zero as xmlBuffer.

bool	writeMetaInfo (const char *xmlBuffer, int32 size=-1, bool forceWriting=false)
	Writes the meta XML info, -1 means null-terminated, forceWriting to true will force to rewrite the XML Info when the chunk already exists.

bool	prepareMetaInfoUpdate ()
	checks if meta info chunk is the last one and jump to correct position.

bool	writeChunk (const void *data, int32 size, ChunkType which=kComponentState)
	Writes a given data of a given size as "which" chunk type.

bool	seekToComponentState ()
	Seeks to the begin of the Component State.

bool	storeComponentState (IComponent *component)
	Stores the component state (only one time).

bool	storeComponentState (IBStream *componentStream)
	Stores the component state from stream (only one time).

bool	restoreComponentState (IComponent *component)
	Restores the component state.

bool	seekToControllerState ()
	Seeks to the begin of the Controller State.

bool	storeControllerState (IEditController *editController)
	Stores the controller state (only one time).

bool	storeControllerState (IBStream *editStream)
	Stores the controller state from stream (only one time).

bool	restoreControllerState (IEditController *editController)
	Restores the controller state.

bool	restoreComponentState (IEditController *editController)
	Restores the component state and apply it to the controller.

bool	storeProgramData (IBStream *inStream, ProgramListID listID)
	Store program data or unit data from stream (including the header chunk).

bool	storeProgramData (IProgramListData *programListData, ProgramListID programListID, int32 programIndex)
	Stores a IProgramListData with a given identifier and index (including the header chunk).

bool	restoreProgramData (IProgramListData programListData, ProgramListID programListID=nullptr, int32 programIndex=0)
	Restores a IProgramListData with a given identifier and index.

bool	storeProgramData (IUnitData *unitData, UnitID unitID)
	Stores a IUnitData with a given unitID (including the header chunk).

bool	restoreProgramData (IUnitData unitData, UnitID unitID=nullptr)
	Restores a IUnitData with a given unitID (optional).

bool	restoreProgramData (IUnitInfo *unitInfo, int32 unitProgramListID, int32 programIndex=-1)
	for keeping the controller part in sync concerning preset data stream, unitProgramListID could be ProgramListID or UnitID.

bool	getUnitProgramListID (int32 &unitProgramListID)
	Gets the unitProgramListID saved in the kProgramData chunk (if available).

Static Public Member Functions
static bool	savePreset (IBStream stream, const FUID &classID, IComponent component, IEditController editController=nullptr, const char xmlBuffer=nullptr, int32 xmlSize=-1)
	Shortcut helper to create preset from component/controller state.

static bool	savePreset (IBStream stream, const FUID &classID, IBStream componentStream, IBStream editStream=nullptr, const char xmlBuffer=nullptr, int32 xmlSize=-1)

static bool	loadPreset (IBStream stream, const FUID &classID, IComponent component, IEditController editController=nullptr, std::vector< FUID > otherClassIDArray=nullptr)
	Shortcut helper to load preset with component/controller state.

Protected Types
enum	{ kMaxEntries = 128 }

Protected Member Functions
bool	readID (ChunkID id)

bool	writeID (const ChunkID id)

bool	readEqualID (const ChunkID id)

bool	readSize (TSize &size)

bool	writeSize (TSize size)

bool	readInt32 (int32 &value)

bool	writeInt32 (int32 value)

bool	seekTo (TSize offset)

bool	beginChunk (Entry &e, ChunkType which)

bool	endChunk (Entry &e)

Protected Attributes
IBStream *	stream

FUID	classID
	classID is the FUID of the component (processor) part

Entry	entries [kMaxEntries]

int32	entryCount {0}

Detailed Description

Handler for a VST 3 Preset File.

See Also: presetformat

Member Enumeration Documentation

anonymous enum

protected

Enumerator
kMaxEntries

Constructor & Destructor Documentation

PresetFile ( IBStream * stream )

Constructor of Preset file based on a stream.

~PresetFile ( )

virtual

Member Function Documentation

IBStream* getStream ( ) const

inline

Returns the associated stream.

const FUID& getClassID ( ) const

inline

Returns the associated classID (component ID: Processor part (not the controller!)).

void setClassID ( const FUID & uid )

inline

Sets the associated classID (component ID: Processor part (not the controller!)).

const PresetFile::Entry * getEntry ( ChunkType which ) const

Returns an entry for a given chunk type.

const PresetFile::Entry * getLastEntry ( ) const

Returns the last available entry.

int32 getEntryCount ( ) const

inline

Returns the number of total entries in the current stream.

const Entry& at ( int32 index ) const

inline

Returns the entry at a given position.

bool contains ( ChunkType which ) const

inline

Checks if a given chunk type exist in the stream.

bool readChunkList ( )

Reads and build the chunk list (including the header chunk).

bool writeHeader ( )

Writes into the stream the main header.

bool writeChunkList ( )

Writes into the stream the chunk list (should be at the end).

bool readMetaInfo	(	char *	xmlBuffer,
		int32 &	size
	)

Reads the meta XML info and its size, the size could be retrieved by passing zero as xmlBuffer.

bool writeMetaInfo	(	const char *	xmlBuffer,
		int32	size = `-1`,
		bool	forceWriting = `false`
	)

Writes the meta XML info, -1 means null-terminated, forceWriting to true will force to rewrite the XML Info when the chunk already exists.

bool prepareMetaInfoUpdate ( )

checks if meta info chunk is the last one and jump to correct position.

bool writeChunk	(	const void *	data,
		int32	size,
		ChunkType	which = `kComponentState`
	)

Writes a given data of a given size as "which" chunk type.

bool seekToComponentState ( )

Seeks to the begin of the Component State.

bool storeComponentState ( IComponent * component )

Stores the component state (only one time).

bool storeComponentState ( IBStream * componentStream )

Stores the component state from stream (only one time).

bool restoreComponentState ( IComponent * component )

Restores the component state.

bool seekToControllerState ( )

Seeks to the begin of the Controller State.

bool storeControllerState ( IEditController * editController )

Stores the controller state (only one time).

bool storeControllerState ( IBStream * editStream )

Stores the controller state from stream (only one time).

bool restoreControllerState ( IEditController * editController )

Restores the controller state.

bool restoreComponentState ( IEditController * editController )

Restores the component state and apply it to the controller.

bool storeProgramData	(	IBStream *	inStream,
		ProgramListID	listID
	)

Store program data or unit data from stream (including the header chunk).

Parameters

inStream
listID	could be ProgramListID or UnitID.

bool storeProgramData	(	IProgramListData *	programListData,
		ProgramListID	programListID,
		int32	programIndex
	)

Stores a IProgramListData with a given identifier and index (including the header chunk).

bool restoreProgramData	(	IProgramListData *	programListData,
		ProgramListID *	programListID = `nullptr`,
		int32	programIndex = `0`
	)

Restores a IProgramListData with a given identifier and index.

bool storeProgramData	(	IUnitData *	unitData,
		UnitID	unitID
	)

Stores a IUnitData with a given unitID (including the header chunk).

bool restoreProgramData	(	IUnitData *	unitData,
		UnitID *	unitID = `nullptr`
	)

Restores a IUnitData with a given unitID (optional).

bool restoreProgramData	(	IUnitInfo *	unitInfo,
		int32	unitProgramListID,
		int32	programIndex = `-1`
	)

for keeping the controller part in sync concerning preset data stream, unitProgramListID could be ProgramListID or UnitID.

bool getUnitProgramListID ( int32 & unitProgramListID )

Gets the unitProgramListID saved in the kProgramData chunk (if available).

bool savePreset	(	IBStream *	stream,
		const FUID &	classID,
		IComponent *	component,
		IEditController *	editController = `nullptr`,
		const char *	xmlBuffer = `nullptr`,
		int32	xmlSize = `-1`
	)

static

Shortcut helper to create preset from component/controller state.

classID is the FUID of the component (processor) part.

bool savePreset	(	IBStream *	stream,
		const FUID &	classID,
		IBStream *	componentStream,
		IBStream *	editStream = `nullptr`,
		const char *	xmlBuffer = `nullptr`,
		int32	xmlSize = `-1`
	)

static

bool loadPreset	(	IBStream *	stream,
		const FUID &	classID,
		IComponent *	component,
		IEditController *	editController = `nullptr`,
		std::vector< FUID > *	otherClassIDArray = `nullptr`
	)

static

Shortcut helper to load preset with component/controller state.

classID is the FUID of the component (processor) part.

bool readID ( ChunkID id )

protected

bool writeID ( const ChunkID id )

protected

bool readEqualID ( const ChunkID id )

protected

bool readSize ( TSize & size )

protected

bool writeSize ( TSize size )

protected

bool readInt32 ( int32 & value )

protected

bool writeInt32 ( int32 value )

protected

bool seekTo ( TSize offset )

protected

bool beginChunk	(	Entry &	e,
		ChunkType	which
	)

protected

bool endChunk ( Entry & e )

protected

Member Data Documentation

IBStream* stream

protected

FUID classID

protected

classID is the FUID of the component (processor) part

Entry entries[kMaxEntries]

protected

int32 entryCount {0}

protected

Classes

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation