zgfx.c File Reference

#include <freerdp/config.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/bitstream.h>
#include <freerdp/log.h>
#include <freerdp/codec/zgfx.h>

Macros
#define	TAG   FREERDP_TAG("codec")

Functions
static INLINE BOOL	zgfx_GetBits (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, UINT32 nbits)
static INLINE void	zgfx_history_buffer_ring_write (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, const BYTE *WINPR_RESTRICT src, size_t count)
static INLINE void	zgfx_history_buffer_ring_read (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, int offset, BYTE *WINPR_RESTRICT dst, UINT32 count)
static INLINE BOOL	zgfx_decompress_segment (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, wStream *WINPR_RESTRICT stream, size_t segmentSize)
static INLINE BYTE *	aligned_zgfx_malloc (size_t size)
static INLINE BOOL	zgfx_append (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, BYTE **WINPR_RESTRICT ppConcatenated, size_t uncompressedSize, size_t *WINPR_RESTRICT pUsed)
int	zgfx_decompress (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, const BYTE *WINPR_RESTRICT pSrcData, UINT32 SrcSize, BYTE **WINPR_RESTRICT ppDstData, UINT32 *WINPR_RESTRICT pDstSize, UINT32 flags)
static BOOL	zgfx_compress_segment (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, wStream *WINPR_RESTRICT s, const BYTE *WINPR_RESTRICT pSrcData, UINT32 SrcSize, UINT32 *WINPR_RESTRICT pFlags)
int	zgfx_compress_to_stream (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, wStream *WINPR_RESTRICT sDst, const BYTE *WINPR_RESTRICT pUncompressed, UINT32 uncompressedSize, UINT32 *WINPR_RESTRICT pFlags)
int	zgfx_compress (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, const BYTE *WINPR_RESTRICT pSrcData, UINT32 SrcSize, BYTE **WINPR_RESTRICT ppDstData, UINT32 *WINPR_RESTRICT pDstSize, UINT32 *WINPR_RESTRICT pFlags)
void	zgfx_context_reset (ZGFX_CONTEXT *WINPR_RESTRICT zgfx, BOOL flush)
ZGFX_CONTEXT *	zgfx_context_new (BOOL Compressor)
void	zgfx_context_free (ZGFX_CONTEXT *zgfx)

Variables
static const ZGFX_TOKEN	ZGFX_TOKEN_TABLE []

Macro Definition Documentation

TAG

#define TAG   FREERDP_TAG("codec")

FreeRDP: A Remote Desktop Protocol Implementation ZGFX (RDP8) 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

aligned_zgfx_malloc()

static INLINE BYTE* aligned_zgfx_malloc ( size_t  size )

static

zgfx_append()

static INLINE BOOL zgfx_append ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, BYTE **WINPR_RESTRICT  ppConcatenated, size_t  uncompressedSize, size_t *WINPR_RESTRICT  pUsed  )

static

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zgfx_compress()

int zgfx_compress	(	ZGFX_CONTEXT *WINPR_RESTRICT	zgfx,
		const BYTE *WINPR_RESTRICT	pSrcData,
		UINT32	SrcSize,
		BYTE **WINPR_RESTRICT	ppDstData,
		UINT32 *WINPR_RESTRICT	pDstSize,
		UINT32 *WINPR_RESTRICT	pFlags
	)

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zgfx_compress_segment()

static BOOL zgfx_compress_segment ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, wStream *WINPR_RESTRICT  s, const BYTE *WINPR_RESTRICT  pSrcData, UINT32  SrcSize, UINT32 *WINPR_RESTRICT  pFlags  )

static

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zgfx_compress_to_stream()

int zgfx_compress_to_stream	(	ZGFX_CONTEXT *WINPR_RESTRICT	zgfx,
		wStream *WINPR_RESTRICT	sDst,
		const BYTE *WINPR_RESTRICT	pUncompressed,
		UINT32	uncompressedSize,
		UINT32 *WINPR_RESTRICT	pFlags
	)

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zgfx_context_free()

void zgfx_context_free

(

ZGFX_CONTEXT *

zgfx

)

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zgfx_context_new()

ZGFX_CONTEXT* zgfx_context_new

(

BOOL

Compressor

)

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zgfx_context_reset()

void zgfx_context_reset	(	ZGFX_CONTEXT *WINPR_RESTRICT	zgfx,
		BOOL	flush
	)

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zgfx_decompress()

int zgfx_decompress	(	ZGFX_CONTEXT *WINPR_RESTRICT	zgfx,
		const BYTE *WINPR_RESTRICT	pSrcData,
		UINT32	SrcSize,
		BYTE **WINPR_RESTRICT	ppDstData,
		UINT32 *WINPR_RESTRICT	pDstSize,
		UINT32	flags
	)

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zgfx_decompress_segment()

static INLINE BOOL zgfx_decompress_segment ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, wStream *WINPR_RESTRICT  stream, size_t  segmentSize  )

static

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zgfx_GetBits()

static INLINE BOOL zgfx_GetBits ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, UINT32  nbits  )

static

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zgfx_history_buffer_ring_read()

static INLINE void zgfx_history_buffer_ring_read ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, int  offset, BYTE *WINPR_RESTRICT  dst, UINT32  count  )

static

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zgfx_history_buffer_ring_write()

static INLINE void zgfx_history_buffer_ring_write ( ZGFX_CONTEXT *WINPR_RESTRICT  zgfx, const BYTE *WINPR_RESTRICT  src, size_t  count  )

static

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Variable Documentation

ZGFX_TOKEN_TABLE

const ZGFX_TOKEN ZGFX_TOKEN_TABLE[]

static