Descriptor batch interface. More...

#include <IDescriptor.h>

Inheritance diagram for fsdk::IDescriptorBatch:

Public Types
enum	Error : uint32_t { Error::Ok, Error::InvalidInput, Error::BatchFull, Error::Incompatible, Error::Internal, Error::IoError, Error::OutOfRange }
	Descriptor batch error enumeration. More...

Public Types inherited from fsdk::ISerializableObject
enum	Error : uint32_t { Error::Ok, Error::Size, Error::Signature, Error::ArchiveRead, Error::InputArchive, Error::ArchiveWrite }
	Serialization nerror codes. More...

enum	Flags { Default = 0, NoSignature = 1 }
	Serialization flags. More...

Public Member Functions
virtual Result< Error >	add (IDescriptor *descriptor) noexcept=0
	Add a descriptor to the batch. More...

virtual Result< Error >	add (IDescriptorBatch *batch, uint32_t offset=0) noexcept=0
	Add a descriptor batch content to the batch. Descriptors to copy from the source bath are selected based on offset parameter. More...

virtual Result< Error >	add (IDescriptorBatch *batch, uint32_t offset, uint32_t count) noexcept=0
	Add a descriptor batch content to the batch. Descriptors to copy from the source bath are selected based on count and offset parameters. More...

virtual Result< Error >	removeFast (int index) noexcept=0
	Remove a descriptor from batch. More...

virtual Result< Error >	removeSlow (int index) noexcept=0
	Remove a descriptor from batch. More...

virtual Result< MultiError < ISerializableObject::Error, Error > >	loadAndAdd (IArchive *archive)=0
	Load a descriptor/descriptors from archive and add it to the batch. More...

virtual uint32_t	getMaxCount () const noexcept=0
	Get maximum number of descriptors in this batch. More...

virtual uint32_t	getCount () const noexcept=0
	Get actual number of descriptors in this batch. More...

virtual uint32_t	getModelVersion () const noexcept=0
	Get algorithm model version the descriptors in this batch were created with. More...

virtual DesctiptorType	getDescriptorType () const noexcept=0
	Get type of descriptor. More...

virtual uint32_t	getDescriptorSize () const noexcept=0
	Get length of one descriptor. Specified by version of descriptors in batch. More...

virtual IDescriptor *	getDescriptorSlow (uint32_t index) const noexcept=0
	Create descriptor from batch by index with copying. More...

virtual IDescriptor *	getDescriptorFast (uint32_t index) noexcept=0
	Create descriptor from batch by index without copying. More...

Public Member Functions inherited from fsdk::IDataStorageObject
virtual void	clear () noexcept=0
	Clear object data. More...

virtual IRefCounted *	getParentObject () const noexcept=0
	Get parent object (one that has created this). More...

Public Member Functions inherited from fsdk::ISerializableObject
virtual void	getSize (Sizer &sizer, uint32_t flags=Default) const noexcept=0
	Estimate size of this object binary data. More...

virtual Result< Error >	load (IArchive *archive, uint32_t flags=Default)=0
	Load object from archive. More...

virtual Result< Error >	save (IArchive *archive, uint32_t flags=Default) const =0
	Save object to archive. More...

Public Member Functions inherited from fsdk::IRefCounted
virtual int32_t	retain () noexcept=0
	Increase strong reference count. More...

virtual int32_t	release () noexcept=0
	Decrease strong reference count. More...

virtual int32_t	getRefCount () const noexcept=0
	Get actual strong reference count. More...

virtual int32_t	retainWeak () noexcept=0
	Increase weak reference count. More...

virtual int32_t	releaseWeak () noexcept=0
	Decrease weak reference count. More...

virtual int32_t	getWeakRefCount () const noexcept=0
	Get actual weak reference count. More...

Detailed Description

Descriptor batch interface.

Used for matching large continous sets of descriptors.

A batch is created with a reserved memory for descriptors that can not be later extended. Thus descriptors can be add()'ed until the memory reservation is exceeded.

Memory reservation size can be obtained via getMaxCount() function. The batch me be reset via clear() function. It does not deallocate memory reservation. Instead, it resets internal counter allowing to re-populate the batch via add() again.

Member Enumeration Documentation

enum fsdk::IDescriptorBatch::Error : uint32_t

strong

Descriptor batch error enumeration.

Used for descriptor batch related errors indication.

Enumerator
Ok	No error.
InvalidInput	Invalid input (Ex: null pointer while a valid objects is expected).
BatchFull	Batch is full.
Incompatible	Trying to add an incompatible descriptor.
Internal	An internal processing error (Ex: memopry allocation or misalignment).
IoError	Error while trying open/read/write file.
OutOfRange	Error while accessing descriptor out of range.

Member Function Documentation

virtual Result<Error> fsdk::IDescriptorBatch::add ( IDescriptor * descriptor )

pure virtualnoexcept

Add a descriptor to the batch.

Parameters

descriptor descriptor to add. Descriptor data is copied and to internal reference is held, thus it is safe to release the source descriptor object later.

Returns: One of the error codes specified by DescriptorBatchError.

virtual Result<Error> fsdk::IDescriptorBatch::add	(	IDescriptorBatch *	batch,
		uint32_t	offset = `0`
	)

pure virtualnoexcept

Add a descriptor batch content to the batch. Descriptors to copy from the source bath are selected based on offset parameter.

Parameters

batch	batch to add content off. All descriptors from the input batch are copied to the buffer of the current batch. So it is safe to release the source descriptor batch object later.
offset	offset of descriptors to copy.

Returns: One of the error codes specified by DescriptorBatchError.

Note: Current batch should have enough free space to place all descriptors from the input batch.; All selected descriptors from the source batch will be placed right after all descriptors in the current batch.; All selected descriptors from the input batch are copied to the buffer of the current batch. So it is safe to release the source descriptor batch object later.

virtual Result<Error> fsdk::IDescriptorBatch::add	(	IDescriptorBatch *	batch,
		uint32_t	offset,
		uint32_t	count
	)

pure virtualnoexcept

Add a descriptor batch content to the batch. Descriptors to copy from the source bath are selected based on count and offset parameters.

Parameters

batch	batch to add content from.
offset	offset of descriptors to copy.
count	count of descriptors to copy.

Returns: One of the error codes specified by DescriptorBatchError.

Note: Current batch should have enough free space to place all descriptors from the input batch.; All selected descriptors from the source batch will be placed right after all descriptors in the current batch.; All selected descriptors from the input batch are copied to the buffer of the current batch. So it is safe to release the source descriptor batch object later.

virtual uint32_t fsdk::IDescriptorBatch::getCount ( ) const

pure virtualnoexcept

Get actual number of descriptors in this batch.

Returns: actual number of descriptors in this batch.

virtual IDescriptor* fsdk::IDescriptorBatch::getDescriptorFast ( uint32_t index )

pure virtualnoexcept

Create descriptor from batch by index without copying.

Parameters

index index required descriptor in batch

Returns: IDescriptor instance pointer if succeeded, nullptr otherwise

Note: If you change achived descriptor - corresponded descriptor in batch will be changed

virtual uint32_t fsdk::IDescriptorBatch::getDescriptorSize ( ) const

pure virtualnoexcept

Get length of one descriptor. Specified by version of descriptors in batch.

Returns: Length of one descriptor in batch.

virtual IDescriptor* fsdk::IDescriptorBatch::getDescriptorSlow ( uint32_t index ) const

pure virtualnoexcept

Create descriptor from batch by index with copying.

Parameters

index index required descriptor in batch

Returns: IDescriptor instance pointer if succeeded, nullptr otherwise

virtual DesctiptorType fsdk::IDescriptorBatch::getDescriptorType ( ) const

pure virtualnoexcept

Get type of descriptor.

Note: This function only makes sense when there is at least one descriptor in the batch.

Returns: type as enum

See Also: DesctiptorType.

virtual uint32_t fsdk::IDescriptorBatch::getMaxCount ( ) const

pure virtualnoexcept

Get maximum number of descriptors in this batch.

Returns: maximum number of descriptors in this batch.

virtual uint32_t fsdk::IDescriptorBatch::getModelVersion ( ) const

pure virtualnoexcept

Get algorithm model version the descriptors in this batch were created with.

Note: This function only makes sense when there is at least one descriptor in the batch. It will return 0 if the batch is empty.

Returns: Version as integral number.

virtual Result<MultiError<ISerializableObject::Error,Error> > fsdk::IDescriptorBatch::loadAndAdd ( IArchive * archive )

pure virtual

Load a descriptor/descriptors from archive and add it to the batch.

Note: This method supports both serialized IDescriptorBatch and IDescriptor.

Parameters

archive archive to read from.

Returns: MultiError result with codes specified by DescriptorBatchError and SerializationError.

Note: This method pass exceptions from user defined IArchive, but doesnt throw its own

See Also: MultiError.

virtual Result<Error> fsdk::IDescriptorBatch::removeFast ( int index )

pure virtualnoexcept

Remove a descriptor from batch.

Remove descriptor by swapping it with the last descriptor in batch. This breaks descriptor order.

Parameters

index descriptor index.

Returns: One of the error codes specified by DescriptorBatchError.

virtual Result<Error> fsdk::IDescriptorBatch::removeSlow ( int index )

pure virtualnoexcept

Remove a descriptor from batch.

Remove descriptor by shifting all the following descriptors back. This preserves descriptor order.

Parameters

index descriptor index.

Returns: One of the error codes specified by DescriptorBatchError.

The documentation for this struct was generated from the following file:

include/fsdk/IDescriptor.h

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

Member Function Documentation