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 *zgfx, UINT32 nbits)
static void	zgfx_history_buffer_ring_write (ZGFX_CONTEXT *zgfx, const BYTE *src, size_t count)
static void	zgfx_history_buffer_ring_read (ZGFX_CONTEXT *zgfx, int offset, BYTE *dst, UINT32 count)
static BOOL	zgfx_decompress_segment (ZGFX_CONTEXT *zgfx, wStream *stream, size_t segmentSize)
static BYTE *	aligned_zgfx_malloc (size_t size)
int	zgfx_decompress (ZGFX_CONTEXT *zgfx, const BYTE *pSrcData, UINT32 SrcSize, BYTE **ppDstData, UINT32 *pDstSize, UINT32 flags)
static BOOL	zgfx_compress_segment (ZGFX_CONTEXT *zgfx, wStream *s, const BYTE *pSrcData, UINT32 SrcSize, UINT32 *pFlags)
int	zgfx_compress_to_stream (ZGFX_CONTEXT *zgfx, wStream *sDst, const BYTE *pUncompressed, UINT32 uncompressedSize, UINT32 *pFlags)
int	zgfx_compress (ZGFX_CONTEXT *zgfx, const BYTE *pSrcData, UINT32 SrcSize, BYTE **ppDstData, UINT32 *pDstSize, UINT32 *pFlags)
void	zgfx_context_reset (ZGFX_CONTEXT *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 BYTE* aligned_zgfx_malloc ( size_t  size )

static

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zgfx_compress()

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

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zgfx_compress_segment()

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

static

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zgfx_compress_to_stream()

int zgfx_compress_to_stream	(	ZGFX_CONTEXT *	zgfx,
		wStream *	sDst,
		const BYTE *	pUncompressed,
		UINT32	uncompressedSize,
		UINT32 *	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 *	zgfx,
		BOOL	flush
	)

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zgfx_decompress()

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

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zgfx_decompress_segment()

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

static

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zgfx_GetBits()

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

static

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zgfx_history_buffer_ring_read()

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

static

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zgfx_history_buffer_ring_write()

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

static

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Variable Documentation

ZGFX_TOKEN_TABLE

const ZGFX_TOKEN ZGFX_TOKEN_TABLE[]

static