#include <winpr/assert.h>
#include <freerdp/config.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/bitstream.h>
#include <freerdp/log.h>
#include "xcrush.h"

Macros
#define	TAG FREERDP_TAG("codec")

Functions
static UINT32	xcrush_update_hash (const BYTE *data, UINT32 size)

static int	xcrush_append_chunk (XCRUSH_CONTEXT xcrush, const BYTE data, UINT32 *beg, UINT32 end)

static int	xcrush_compute_chunks (XCRUSH_CONTEXT xcrush, const BYTE data, UINT32 size, UINT32 *pIndex)

static UINT32	xcrush_compute_signatures (XCRUSH_CONTEXT xcrush, const BYTE data, UINT32 size)

static void	xcrush_clear_hash_table_range (XCRUSH_CONTEXT *xcrush, UINT32 beg, UINT32 end)

static int	xcrush_find_next_matching_chunk (XCRUSH_CONTEXT xcrush, XCRUSH_CHUNK chunk, XCRUSH_CHUNK **pNextChunk)

static int	xcrush_insert_chunk (XCRUSH_CONTEXT xcrush, XCRUSH_SIGNATURE signature, UINT32 offset, XCRUSH_CHUNK **pPrevChunk)

static int	xcrush_find_match_length (XCRUSH_CONTEXT xcrush, UINT32 MatchOffset, UINT32 ChunkOffset, UINT32 HistoryOffset, UINT32 SrcSize, UINT32 MaxMatchLength, XCRUSH_MATCH_INFO MatchInfo)

static int	xcrush_find_all_matches (XCRUSH_CONTEXT *xcrush, UINT32 SignatureIndex, UINT32 HistoryOffset, UINT32 SrcOffset, UINT32 SrcSize)

static int	xcrush_optimize_matches (XCRUSH_CONTEXT *xcrush)

static int	xcrush_generate_output (XCRUSH_CONTEXT xcrush, BYTE OutputBuffer, UINT32 OutputSize, UINT32 HistoryOffset, UINT32 *pDstSize)

static INLINE size_t	xcrush_copy_bytes (BYTE dst, const BYTE src, size_t num)

static int	xcrush_decompress_l1 (XCRUSH_CONTEXT xcrush, const BYTE pSrcData, UINT32 SrcSize, const BYTE *ppDstData, UINT32 pDstSize, UINT32 flags)

int	xcrush_decompress (XCRUSH_CONTEXT xcrush, const BYTE pSrcData, UINT32 SrcSize, const BYTE *ppDstData, UINT32 pDstSize, UINT32 flags)

static int	xcrush_compress_l1 (XCRUSH_CONTEXT xcrush, const BYTE pSrcData, UINT32 SrcSize, BYTE pDstData, UINT32 pDstSize, UINT32 *pFlags)

int	xcrush_compress (XCRUSH_CONTEXT xcrush, const BYTE pSrcData, UINT32 SrcSize, BYTE pDstBuffer, const BYTE ppDstData, UINT32 pDstSize, UINT32 *pFlags)

void	xcrush_context_reset (XCRUSH_CONTEXT *xcrush, BOOL flush)

XCRUSH_CONTEXT *	xcrush_context_new (BOOL Compressor)

void	xcrush_context_free (XCRUSH_CONTEXT *xcrush)

Macro Definition Documentation

◆ TAG

#define TAG FREERDP_TAG("codec")

FreeRDP: A Remote Desktop Protocol Implementation XCrush (RDP6.1) Bulk Data Compression

Copyright 2014 Marc-Andre Moreau marca.nosp@m.ndre.nosp@m..more.nosp@m.au@g.nosp@m.mail..nosp@m.com Copyright 2017 Armin Novak armin.nosp@m..nov.nosp@m.ak@th.nosp@m.inca.nosp@m.st.co.nosp@m.m Copyright 2017 Thincast Technologies GmbH

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Function Documentation

◆ xcrush_append_chunk()

static int xcrush_append_chunk	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	data,
		UINT32 *	beg,
		UINT32	end
	)

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◆ xcrush_clear_hash_table_range()

static void xcrush_clear_hash_table_range	(	XCRUSH_CONTEXT *	xcrush,
		UINT32	beg,
		UINT32	end
	)

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◆ xcrush_compress()

int xcrush_compress	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		BYTE *	pDstBuffer,
		const BYTE **	ppDstData,
		UINT32 *	pDstSize,
		UINT32 *	pFlags
	)

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◆ xcrush_compress_l1()

static int xcrush_compress_l1	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		BYTE *	pDstData,
		UINT32 *	pDstSize,
		UINT32 *	pFlags
	)

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◆ xcrush_compute_chunks()

static int xcrush_compute_chunks	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	data,
		UINT32	size,
		UINT32 *	pIndex
	)

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◆ xcrush_compute_signatures()

static UINT32 xcrush_compute_signatures	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	data,
		UINT32	size
	)

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◆ xcrush_context_free()

void xcrush_context_free ( XCRUSH_CONTEXT * xcrush )

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◆ xcrush_context_new()

XCRUSH_CONTEXT* xcrush_context_new ( BOOL Compressor )

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◆ xcrush_context_reset()

void xcrush_context_reset	(	XCRUSH_CONTEXT *	xcrush,
		BOOL	flush
	)

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◆ xcrush_copy_bytes()

static INLINE size_t xcrush_copy_bytes	(	BYTE *	dst,
		const BYTE *	src,
		size_t	num
	)

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◆ xcrush_decompress()

int xcrush_decompress	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		const BYTE **	ppDstData,
		UINT32 *	pDstSize,
		UINT32	flags
	)

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◆ xcrush_decompress_l1()

static int xcrush_decompress_l1	(	XCRUSH_CONTEXT *	xcrush,
		const BYTE *	pSrcData,
		UINT32	SrcSize,
		const BYTE **	ppDstData,
		UINT32 *	pDstSize,
		UINT32	flags
	)

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◆ xcrush_find_all_matches()

static int xcrush_find_all_matches	(	XCRUSH_CONTEXT *	xcrush,
		UINT32	SignatureIndex,
		UINT32	HistoryOffset,
		UINT32	SrcOffset,
		UINT32	SrcSize
	)

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◆ xcrush_find_match_length()

static int xcrush_find_match_length	(	XCRUSH_CONTEXT *	xcrush,
		UINT32	MatchOffset,
		UINT32	ChunkOffset,
		UINT32	HistoryOffset,
		UINT32	SrcSize,
		UINT32	MaxMatchLength,
		XCRUSH_MATCH_INFO *	MatchInfo
	)

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◆ xcrush_find_next_matching_chunk()

static int xcrush_find_next_matching_chunk	(	XCRUSH_CONTEXT *	xcrush,
		XCRUSH_CHUNK *	chunk,
		XCRUSH_CHUNK **	pNextChunk
	)

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◆ xcrush_generate_output()

static int xcrush_generate_output	(	XCRUSH_CONTEXT *	xcrush,
		BYTE *	OutputBuffer,
		UINT32	OutputSize,
		UINT32	HistoryOffset,
		UINT32 *	pDstSize
	)

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◆ xcrush_insert_chunk()

static int xcrush_insert_chunk	(	XCRUSH_CONTEXT *	xcrush,
		XCRUSH_SIGNATURE *	signature,
		UINT32	offset,
		XCRUSH_CHUNK **	pPrevChunk
	)

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◆ xcrush_optimize_matches()

static int xcrush_optimize_matches ( XCRUSH_CONTEXT * xcrush )

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◆ xcrush_update_hash()

static UINT32 xcrush_update_hash	(	const BYTE *	data,
		UINT32	size
	)

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Macros

Functions

Macro Definition Documentation

◆ TAG

Function Documentation

◆ xcrush_append_chunk()

◆ xcrush_clear_hash_table_range()

◆ xcrush_compress()

◆ xcrush_compress_l1()

◆ xcrush_compute_chunks()

◆ xcrush_compute_signatures()

◆ xcrush_context_free()

◆ xcrush_context_new()

◆ xcrush_context_reset()

◆ xcrush_copy_bytes()

◆ xcrush_decompress()

◆ xcrush_decompress_l1()

◆ xcrush_find_all_matches()

◆ xcrush_find_match_length()

◆ xcrush_find_next_matching_chunk()

◆ xcrush_generate_output()

◆ xcrush_insert_chunk()

◆ xcrush_optimize_matches()

◆ xcrush_update_hash()