#include <Encoder.h>

Inheritance diagram for e57::BitpackEncoder:

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Collaboration diagram for e57::BitpackEncoder:

Public Member Functions
uint64_t	processRecords (size_t recordCount) override=0

unsigned	sourceBufferNextIndex () override

uint64_t	currentRecordIndex () override

float	bitsPerRecord () override=0

bool	registerFlushToOutput () override=0

size_t	outputAvailable () const override

void	outputRead (char *dest, const size_t byteCount) override
	number of bytes that can be read More...

void	outputClear () override
	get data from encoder More...

void	sourceBufferSetNew (std::vector< SourceDestBuffer > &sbufs) override

size_t	outputGetMaxSize () override

void	outputSetMaxSize (unsigned byteCount) override

void	dump (int indent=0, std::ostream &os=std::cout) const override

Public Member Functions inherited from e57::Encoder
virtual	~Encoder ()=default

unsigned	bytestreamNumber () const

Protected Member Functions
	BitpackEncoder (unsigned bytestreamNumber, SourceDestBuffer &sbuf, unsigned outputMaxSize, unsigned alignmentSize)
	================ More...

void	outBufferShiftDown ()

Protected Member Functions inherited from e57::Encoder
	Encoder (unsigned bytestreamNumber)

Protected Attributes
std::shared_ptr< SourceDestBufferImpl >	sourceBuffer_

std::vector< char >	outBuffer_

size_t	outBufferFirst_

size_t	outBufferEnd_

size_t	outBufferAlignmentSize_

uint64_t	currentRecordIndex_

Protected Attributes inherited from e57::Encoder
unsigned	bytestreamNumber_

Additional Inherited Members
Static Public Member Functions inherited from e57::Encoder
static std::shared_ptr< Encoder >	EncoderFactory (unsigned bytestreamNumber, std::shared_ptr< CompressedVectorNodeImpl > cVector, std::vector< SourceDestBuffer > &sbuf, ustring &codecPath)

Detailed Description

Definition at line 71 of file Encoder.h.

Constructor & Destructor Documentation

◆ BitpackEncoder()

BitpackEncoder::BitpackEncoder	(	unsigned	bytestreamNumber,
		SourceDestBuffer &	sbuf,
		unsigned	outputMaxSize,
		unsigned	alignmentSize
	)

protected

================

Definition at line 204 of file Encoder.cpp.

Member Function Documentation

◆ bitsPerRecord()

float e57::BitpackEncoder::bitsPerRecord ( )

overridepure virtual

Implements e57::Encoder.

Implemented in e57::BitpackIntegerEncoder< RegisterT >, e57::BitpackStringEncoder, and e57::BitpackFloatEncoder.

◆ currentRecordIndex()

uint64_t BitpackEncoder::currentRecordIndex ( )

overridevirtual

Implements e57::Encoder.

Definition at line 216 of file Encoder.cpp.

References currentRecordIndex_.

◆ dump()

void BitpackEncoder::dump	(	int	indent = `0`,
		std::ostream &	os = `std::cout`
	)		const

overridevirtual

Reimplemented from e57::Encoder.

Reimplemented in e57::BitpackIntegerEncoder< RegisterT >, e57::BitpackStringEncoder, and e57::BitpackFloatEncoder.

Definition at line 348 of file Encoder.cpp.

References currentRecordIndex_, e57::Encoder::dump(), QtCompat::endl(), outBuffer_, outBufferAlignmentSize_, outBufferEnd_, outBufferFirst_, sourceBuffer_, and e57::space().

Referenced by e57::BitpackFloatEncoder::dump(), e57::BitpackStringEncoder::dump(), and e57::BitpackIntegerEncoder< RegisterT >::dump().

◆ outBufferShiftDown()

void BitpackEncoder::outBufferShiftDown ( )

protected

Move data down closer to beginning of outBuffer_. But keep outBufferEnd_ as a multiple of outBufferAlignmentSize_. This ensures that writes into buffer can occur on natural boundaries. Otherwise some CPUs will fault.

Buffer is empty, reset indices to 0

Round newEnd up to nearest multiple of outBufferAlignmentSize_.

Double check round up worked

Be paranoid before memory copy

Move available data down closer to beginning of outBuffer_. Overlapping regions ok with memmove().

Update indexes

Definition at line 298 of file Encoder.cpp.

References e57::E57_ERROR_INTERNAL, E57_EXCEPTION2, outBuffer_, outBufferAlignmentSize_, outBufferEnd_, outBufferFirst_, outputAvailable(), and e57::toString().

Referenced by e57::BitpackFloatEncoder::processRecords(), and e57::BitpackStringEncoder::processRecords().