mirror of
https://github.com/morgan9e/FreeRDP
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cc934795e4
* use asserting casts to detect overflows or sign conversions * code cleanup for issues uncovered by casts
89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* RDP6 Planar Codec
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*
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* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2016 Armin Novak <armin.novak@thincast.com>
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* Copyright 2016 Thincast Technologies GmbH
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FREERDP_CODEC_PLANAR_H
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#define FREERDP_CODEC_PLANAR_H
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#include <winpr/cast.h>
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#include <winpr/crt.h>
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#include <freerdp/codec/color.h>
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#include <freerdp/codec/bitmap.h>
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#define PLANAR_FORMAT_HEADER_CS (1 << 3)
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#define PLANAR_FORMAT_HEADER_RLE (1 << 4)
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#define PLANAR_FORMAT_HEADER_NA (1 << 5)
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#define PLANAR_FORMAT_HEADER_CLL_MASK 0x07
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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static inline BYTE PLANAR_CONTROL_BYTE(UINT32 nRunLength, UINT32 cRawBytes)
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{
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return WINPR_ASSERTING_INT_CAST(UINT8, ((nRunLength & 0x0F) | ((cRawBytes & 0x0F) << 4)));
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}
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static inline BYTE PLANAR_CONTROL_BYTE_RUN_LENGTH(UINT32 controlByte)
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{
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return (controlByte & 0x0F);
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}
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static inline BYTE PLANAR_CONTROL_BYTE_RAW_BYTES(UINT32 controlByte)
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{
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return ((controlByte >> 4) & 0x0F);
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}
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typedef struct S_BITMAP_PLANAR_CONTEXT BITMAP_PLANAR_CONTEXT;
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FREERDP_API BYTE* freerdp_bitmap_compress_planar(BITMAP_PLANAR_CONTEXT* WINPR_RESTRICT context,
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const BYTE* WINPR_RESTRICT data, UINT32 format,
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UINT32 width, UINT32 height, UINT32 scanline,
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BYTE* WINPR_RESTRICT dstData,
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UINT32* WINPR_RESTRICT pDstSize);
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FREERDP_API BOOL freerdp_bitmap_planar_context_reset(
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BITMAP_PLANAR_CONTEXT* WINPR_RESTRICT context, UINT32 width, UINT32 height);
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FREERDP_API void freerdp_bitmap_planar_context_free(BITMAP_PLANAR_CONTEXT* context);
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WINPR_ATTR_MALLOC(freerdp_bitmap_planar_context_free, 1)
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FREERDP_API BITMAP_PLANAR_CONTEXT* freerdp_bitmap_planar_context_new(DWORD flags, UINT32 width,
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UINT32 height);
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FREERDP_API void freerdp_planar_switch_bgr(BITMAP_PLANAR_CONTEXT* WINPR_RESTRICT planar,
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BOOL bgr);
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FREERDP_API void freerdp_planar_topdown_image(BITMAP_PLANAR_CONTEXT* WINPR_RESTRICT planar,
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BOOL topdown);
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FREERDP_API BOOL planar_decompress(BITMAP_PLANAR_CONTEXT* WINPR_RESTRICT planar,
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const BYTE* WINPR_RESTRICT pSrcData, UINT32 SrcSize,
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UINT32 nSrcWidth, UINT32 nSrcHeight,
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BYTE* WINPR_RESTRICT pDstData, UINT32 DstFormat,
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UINT32 nDstStep, UINT32 nXDst, UINT32 nYDst,
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UINT32 nDstWidth, UINT32 nDstHeight, BOOL vFlip);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FREERDP_CODEC_PLANAR_H */
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