LZMASaveFilter Struct Reference

Filter using LZMA compression. More...

Inheritance diagram for LZMASaveFilter:

Public Member Functions
	LZMASaveFilter (std::shared_ptr< SaveFilter > chain, uint8_t compression_level)
	Initialise this filter.
	~LZMASaveFilter ()
	Clean up what we allocated.
void	WriteLoop (uint8_t *p, size_t len, lzma_action action)
	Helper loop for writing the data.
void	Write (uint8_t *buf, size_t size) override
	Write a given number of bytes into the savegame.
void	Finish () override
	Prepare everything to finish writing the savegame.
Public Member Functions inherited from SaveFilter
	SaveFilter (std::shared_ptr< SaveFilter > chain)
	Initialise this filter.
virtual	~SaveFilter ()=default
	Make sure the writers are properly closed.

Data Fields
lzma_stream	lzma
	Stream state that we are writing to.
uint8_t	fwrite_buf [MEMORY_CHUNK_SIZE]
	Buffer for writing to the file.
Data Fields inherited from SaveFilter
std::shared_ptr< SaveFilter >	chain
	Chained to the (savegame) filters.

Detailed Description

Filter using LZMA compression.

Definition at line 2623 of file saveload.cpp.

Constructor & Destructor Documentation

LZMASaveFilter()

LZMASaveFilter::LZMASaveFilter ( std::shared_ptr< SaveFilter >  chain, uint8_t  compression_level  )

inline

Initialise this filter.

Parameters

chain	The next filter in this chain.
compression_level	The requested level of compression.

Definition at line 2632 of file saveload.cpp.

References SlError().

~LZMASaveFilter()

LZMASaveFilter::~LZMASaveFilter ( )

inline

Clean up what we allocated.

Definition at line 2638 of file saveload.cpp.

Member Function Documentation

Finish()

void LZMASaveFilter::Finish ( )

inlineoverridevirtual

Prepare everything to finish writing the savegame.

Reimplemented from SaveFilter.

Definition at line 2674 of file saveload.cpp.

References SaveFilter::chain, and WriteLoop().

Write()

void LZMASaveFilter::Write ( uint8_t *  buf, size_t  len  )

inlineoverridevirtual

Write a given number of bytes into the savegame.

Parameters

buf	The bytes to write.
len	The number of bytes to write.

Implements SaveFilter.

Definition at line 2669 of file saveload.cpp.

References WriteLoop().

WriteLoop()

void LZMASaveFilter::WriteLoop ( uint8_t *  p, size_t  len, lzma_action  action  )

inline

Helper loop for writing the data.

Parameters

p	The bytes to write.
len	Amount of bytes to write.
action	Action for lzma_code.

Definition at line 2649 of file saveload.cpp.

References SaveFilter::chain, fwrite_buf, and SlError().

Referenced by Finish(), and Write().

Field Documentation

fwrite_buf

uint8_t LZMASaveFilter::fwrite_buf[MEMORY_CHUNK_SIZE]

Buffer for writing to the file.

Definition at line 2625 of file saveload.cpp.

Referenced by WriteLoop().

lzma

lzma_stream LZMASaveFilter::lzma

Stream state that we are writing to.

Definition at line 2624 of file saveload.cpp.

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

• src/saveload/saveload.cpp