2b6bd2626d
1. Fix stream leak in rdpgfx 2. Make src data const in zgfx. Harden zgfx to be independent to byte order 3. Fix written bytes return value in channel write 4. Add check for return value in shadow_client.c 5. Add gfx callback to send surface command with frame marker pdu. 6. Check remain length for recv subroutine 7. Fix compile errors
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/**
|
|
* FreeRDP: A Remote Desktop Protocol Implementation
|
|
* ZGFX (RDP8) Bulk Data Compression
|
|
*
|
|
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef FREERDP_CODEC_ZGFX_H
|
|
#define FREERDP_CODEC_ZGFX_H
|
|
|
|
#include <freerdp/api.h>
|
|
#include <freerdp/types.h>
|
|
|
|
#include <freerdp/codec/bulk.h>
|
|
|
|
#define ZGFX_SEGMENTED_SINGLE 0xE0
|
|
#define ZGFX_SEGMENTED_MULTIPART 0xE1
|
|
|
|
#define ZGFX_PACKET_COMPR_TYPE_RDP8 0x04
|
|
|
|
#define ZGFX_SEGMENTED_MAXSIZE 65535
|
|
|
|
struct _ZGFX_CONTEXT
|
|
{
|
|
BOOL Compressor;
|
|
|
|
const BYTE* pbInputCurrent;
|
|
const BYTE* pbInputEnd;
|
|
|
|
UINT32 bits;
|
|
UINT32 cBitsRemaining;
|
|
UINT32 BitsCurrent;
|
|
UINT32 cBitsCurrent;
|
|
|
|
BYTE OutputBuffer[65536];
|
|
UINT32 OutputCount;
|
|
|
|
BYTE HistoryBuffer[2500000];
|
|
UINT32 HistoryIndex;
|
|
UINT32 HistoryBufferSize;
|
|
};
|
|
typedef struct _ZGFX_CONTEXT ZGFX_CONTEXT;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
FREERDP_API int zgfx_decompress(ZGFX_CONTEXT* zgfx, const BYTE* pSrcData, UINT32 SrcSize, BYTE** ppDstData, UINT32* pDstSize, UINT32 flags);
|
|
FREERDP_API int zgfx_compress(ZGFX_CONTEXT* zgfx, const BYTE* pSrcData, UINT32 SrcSize, BYTE** ppDstData, UINT32* pDstSize, UINT32* pFlags);
|
|
FREERDP_API int zgfx_compress_to_stream(ZGFX_CONTEXT* zgfx, wStream* sDst, const BYTE* pUncompressed, UINT32 uncompressedSize, UINT32* pFlags);
|
|
|
|
FREERDP_API void zgfx_context_reset(ZGFX_CONTEXT* zgfx, BOOL flush);
|
|
|
|
FREERDP_API ZGFX_CONTEXT* zgfx_context_new(BOOL Compressor);
|
|
FREERDP_API void zgfx_context_free(ZGFX_CONTEXT* zgfx);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* FREERDP_CODEC_ZGFX_H */
|
|
|