#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 *WINPR_RESTRICT data, UINT32 size)

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

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

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

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

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

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

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

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

static int	xcrush_optimize_matches (XCRUSH_CONTEXT *WINPR_RESTRICT xcrush)

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

static INLINE size_t	xcrush_copy_bytes_no_overlap (BYTE WINPR_RESTRICT dst, const BYTE WINPR_RESTRICT src, size_t num)

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

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

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

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

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

void	xcrush_context_reset (XCRUSH_CONTEXT *WINPR_RESTRICT 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 *WINPR_RESTRICT	xcrush,
		const BYTE *WINPR_RESTRICT	data,
		UINT32 *WINPR_RESTRICT	beg,
		UINT32	end
	)

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_clear_hash_table_range()

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

static

Here is the caller graph for this function:

◆ xcrush_compress()

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

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_compress_l1()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_compute_chunks()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_compute_signatures()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_context_free()

void xcrush_context_free ( XCRUSH_CONTEXT * xcrush )

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_context_new()

XCRUSH_CONTEXT* xcrush_context_new ( BOOL Compressor )

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_context_reset()

void xcrush_context_reset	(	XCRUSH_CONTEXT *WINPR_RESTRICT	xcrush,
		BOOL	flush
	)

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_copy_bytes()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_copy_bytes_no_overlap()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_decompress()

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

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_decompress_l1()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_find_all_matches()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_find_match_length()

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

static

Here is the caller graph for this function:

◆ xcrush_find_next_matching_chunk()

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

static

Here is the caller graph for this function:

◆ xcrush_generate_output()

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

static

Here is the caller graph for this function:

◆ xcrush_insert_chunk()

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

static

Here is the call graph for this function:

Here is the caller graph for this function:

◆ xcrush_optimize_matches()

static int xcrush_optimize_matches ( XCRUSH_CONTEXT *WINPR_RESTRICT xcrush )

static

Here is the caller graph for this function:

◆ xcrush_update_hash()

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

static

Here is the caller graph for this function:

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_copy_bytes_no_overlap()

◆ 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()