FreeRDP/include/freerdp/codec/planar.h

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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* RDP6 Planar Codec
*
* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2016 Armin Novak <armin.novak@thincast.com>
* Copyright 2016 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.
*/
#ifndef FREERDP_CODEC_PLANAR_H
#define FREERDP_CODEC_PLANAR_H
#include <winpr/crt.h>
typedef struct _BITMAP_PLANAR_CONTEXT BITMAP_PLANAR_CONTEXT;
#include <freerdp/codec/color.h>
#include <freerdp/codec/bitmap.h>
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#define PLANAR_FORMAT_HEADER_CS (1 << 3)
#define PLANAR_FORMAT_HEADER_RLE (1 << 4)
#define PLANAR_FORMAT_HEADER_NA (1 << 5)
#define PLANAR_FORMAT_HEADER_CLL_MASK 0x07
#define PLANAR_CONTROL_BYTE(_nRunLength, _cRawBytes) \
(_nRunLength & 0x0F) | ((_cRawBytes & 0x0F) << 4)
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#define PLANAR_CONTROL_BYTE_RUN_LENGTH(_controlByte) (_controlByte & 0x0F)
#define PLANAR_CONTROL_BYTE_RAW_BYTES(_controlByte) ((_controlByte >> 4) & 0x0F)
struct _RDP6_RLE_SEGMENT
{
/**
* controlByte:
* [0-3]: nRunLength
* [4-7]: cRawBytes
*/
BYTE controlByte;
BYTE* rawValues;
};
typedef struct _RDP6_RLE_SEGMENT RDP6_RLE_SEGMENT;
struct _RDP6_RLE_SEGMENTS
{
UINT32 cSegments;
RDP6_RLE_SEGMENT* segments;
};
typedef struct _RDP6_RLE_SEGMENTS RDP6_RLE_SEGMENTS;
struct _RDP6_BITMAP_STREAM
{
/**
* formatHeader:
* [0-2]: Color Loss Level (CLL)
* [3] : Chroma Subsampling (CS)
* [4] : Run Length Encoding (RLE)
* [5] : No Alpha (NA)
* [6-7]: Reserved
*/
BYTE formatHeader;
};
typedef struct _RDP6_BITMAP_STREAM RDP6_BITMAP_STREAM;
struct _BITMAP_PLANAR_CONTEXT
{
UINT32 maxWidth;
UINT32 maxHeight;
UINT32 maxPlaneSize;
BOOL AllowSkipAlpha;
BOOL AllowRunLengthEncoding;
BOOL AllowColorSubsampling;
BOOL AllowDynamicColorFidelity;
UINT32 ColorLossLevel;
BYTE* planes[4];
BYTE* planesBuffer;
BYTE* deltaPlanes[4];
BYTE* deltaPlanesBuffer;
BYTE* rlePlanes[4];
BYTE* rlePlanesBuffer;
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BYTE* pTempData;
UINT32 nTempStep;
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BOOL bgr;
BOOL topdown;
};
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#ifdef __cplusplus
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extern "C"
{
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#endif
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FREERDP_API BYTE* freerdp_bitmap_compress_planar(BITMAP_PLANAR_CONTEXT* context,
const BYTE* data, UINT32 format, UINT32 width,
UINT32 height, UINT32 scanline, BYTE* dstData,
UINT32* pDstSize);
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FREERDP_API BOOL freerdp_bitmap_planar_context_reset(BITMAP_PLANAR_CONTEXT* context,
UINT32 width, UINT32 height);
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FREERDP_API BITMAP_PLANAR_CONTEXT* freerdp_bitmap_planar_context_new(DWORD flags, UINT32 width,
UINT32 height);
FREERDP_API void freerdp_bitmap_planar_context_free(BITMAP_PLANAR_CONTEXT* context);
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FREERDP_API void freerdp_planar_switch_bgr(BITMAP_PLANAR_CONTEXT* planar, BOOL bgr);
FREERDP_API void freerdp_planar_topdown_image(BITMAP_PLANAR_CONTEXT* planar, BOOL topdown);
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FREERDP_API BOOL planar_decompress(BITMAP_PLANAR_CONTEXT* planar, const BYTE* pSrcData,
UINT32 SrcSize, UINT32 nSrcWidth, UINT32 nSrcHeight,
BYTE* pDstData, UINT32 DstFormat, UINT32 nDstStep,
UINT32 nXDst, UINT32 nYDst, UINT32 nDstWidth,
UINT32 nDstHeight, BOOL vFlip);
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#ifdef __cplusplus
}
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#endif
#endif /* FREERDP_CODEC_PLANAR_H */