LZMA Decompressor#

LZMA decompressor LZMA is a compression algorithm that is used in the Gecko Bootloader for compressing upgrade images.

It uses dictionary compression algorithm, a variant of LZ77

Functions#

int32_t

decompressAndFlash(ParserContext_t *ctx, const BootloaderParserCallbacks_t *callbacks, bool finish)

Decompress LZMA data and flash.

int32_t

decompressData(uint8_t *dstBuffer, size_t *dstBufferLen, uint8_t *srcBuffer, size_t *srcBufferLen, ELzmaStatus *status)

Decompress LZMA compressed data.

void *

lzmaAlloc(ISzAllocPtr p, size_t size)

LZMA Allocator.

void

lzmaFree(ISzAllocPtr p, void *address)

LZMA Allocator.

int32_t decompressAndFlash (ParserContext_t * ctx, const BootloaderParserCallbacks_t * callbacks, bool finish)

Decompress LZMA data and flash.

Parameters

N/A	ctx	Parser context
N/A	callbacks	Callbacks to call with parsed data
N/A	finish	Indicates if decompression is complete

Returns

Definition at line 50 of file platform/bootloader/parser/compression/btl_decompress_lzma.h

int32_t decompressData (uint8_t * dstBuffer, size_t * dstBufferLen, uint8_t * srcBuffer, size_t * srcBufferLen, ELzmaStatus * status)

Decompress LZMA compressed data.

Parameters

N/A	dstBuffer	Pointer to the destination buffer
N/A	dstBufferLen	Size of the destination buffer
N/A	srcBuffer	Pointer to the source buffer
N/A	srcBufferLen	Size of the source buffer
N/A	status	LZMA status code.

Returns

Definition at line 63 of file platform/bootloader/parser/compression/btl_decompress_lzma.h

void * lzmaAlloc (ISzAllocPtr p, size_t size)

LZMA Allocator.

Parameters

N/A	p	Pointer to ISzAllocPtr structure instance.
N/A	size	Size of the dictionary buffer

Definition at line 74 of file platform/bootloader/parser/compression/btl_decompress_lzma.h

void lzmaFree (ISzAllocPtr p, void * address)

LZMA Allocator.

Parameters

N/A	p	Pointer to ISzAllocPtr structure instance.
N/A	address	Pointer to ISzAlloc structure

Definition at line 81 of file platform/bootloader/parser/compression/btl_decompress_lzma.h