144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
//*@@@+++@@@@******************************************************************
|
|
//
|
|
// Copyright © Microsoft Corp.
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// • Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// • Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
//*@@@---@@@@******************************************************************
|
|
|
|
#ifndef WMI_DECODE_H
|
|
#define WMI_DECODE_H
|
|
|
|
typedef struct CWMDecoderParameters {
|
|
/** ROI decode **/
|
|
Bool bDecodeFullFrame;
|
|
Bool bDecodeFullWidth;
|
|
|
|
/** thumbnail decode **/
|
|
Bool bSkipFlexbits;
|
|
size_t cThumbnailScale; // 1: cThumbnailScale thumbnail, only supports cThumbnailScale = 2^m for now
|
|
Bool bDecodeHP;
|
|
Bool bDecodeLP;
|
|
|
|
// Region of interest decoding
|
|
size_t cROILeftX;
|
|
size_t cROIRightX;
|
|
size_t cROITopY;
|
|
size_t cROIBottomY;
|
|
|
|
// table lookups for rotation and flip
|
|
size_t * pOffsetX;
|
|
size_t * pOffsetY;
|
|
} CWMDecoderParameters;
|
|
|
|
Void predCBPDec(CWMImageStrCodec *, CCodingContext *);
|
|
Void predDCACDec(CWMImageStrCodec *);
|
|
Void predACDec(CWMImageStrCodec *);
|
|
|
|
Int dequantizeMacroblock(CWMImageStrCodec *);
|
|
Int invTransformMacroblock(CWMImageStrCodec * pSC);
|
|
Int invTransformMacroblock_alteredOperators_hard(CWMImageStrCodec * pSC);
|
|
|
|
Int DecodeMacroblockDC(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
|
|
Int DecodeMacroblockLowpass(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
|
|
Int DecodeMacroblockHighpass(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
|
|
|
|
Int AdaptLowpassDec(struct CCodingContext *);
|
|
Int AdaptHighpassDec(struct CCodingContext *);
|
|
|
|
Void ResetCodingContextDec(CCodingContext *pContext);
|
|
Void FreeCodingContextDec(struct CWMImageStrCodec *pSC);
|
|
|
|
/*************************************************************************/
|
|
// Inverse transform functions
|
|
// 2-point post filter for boundaries (only used in 420 UV DC subband)
|
|
Void strPost2(PixelI *, PixelI *);
|
|
|
|
// 2x2 post filter (only used in 420 UV DC subband)
|
|
Void strPost2x2(PixelI *, PixelI *, PixelI *, PixelI *);
|
|
|
|
/** 4-point post filter for boundaries **/
|
|
Void strPost4(PixelI *, PixelI *, PixelI *, PixelI *);
|
|
|
|
/** data allocation in working buffer (first stage) **/
|
|
|
|
/** Y, 444 U and V **/
|
|
/** 0 1 2 3 **/
|
|
/** 32 33 34 35 **/
|
|
/** 64 65 66 67 **/
|
|
/** 96 97 98 99 **/
|
|
|
|
/** 420 U and V **/
|
|
/** 0 2 4 6 **/
|
|
/** 64 66 68 70 **/
|
|
/** 128 130 132 134 **/
|
|
/** 192 194 196 198 **/
|
|
|
|
/** 4x4 inverse DCT for first stage **/
|
|
Void strIDCT4x4FirstStage(PixelI *);
|
|
Void strIDCT4x4Stage1(PixelI*);
|
|
Void strIDCT4x4FirstStage420UV(PixelI *);
|
|
|
|
/** 4x4 post filter for first stage **/
|
|
Void strPost4x4FirstStage(PixelI *);
|
|
Void strPost4x4Stage1Split(PixelI*, PixelI*, Int, Int, Bool);
|
|
Void strPost4x4Stage1(PixelI*, Int, Int, Bool);
|
|
Void strPost4x4Stage1Split_alternate(PixelI*, PixelI*, Int);
|
|
Void strPost4x4Stage1_alternate(PixelI*, Int);
|
|
//Void strPost4x4Stage1Split_420(PixelI*, PixelI*);
|
|
//Void strPost4x4Stage1_420(PixelI*);
|
|
|
|
Void strPost4x4FirstStage420UV(PixelI *);
|
|
|
|
/** data allocation in working buffer (second stage)**/
|
|
|
|
/** Y, 444 U and V **/
|
|
/** 0 4 8 12 **/
|
|
/** 128 132 136 140 **/
|
|
/** 256 260 264 268 **/
|
|
/** 384 388 392 396 **/
|
|
|
|
/** 420 U and V **/
|
|
/** 0 8 **/
|
|
/** 256 264 **/
|
|
|
|
/** 4x4 invesr DCT for second stage **/
|
|
//Void strIDCT4x4SecondStage(PixelI *);
|
|
Void strIDCT4x4Stage2(PixelI*);
|
|
Void strNormalizeDec(PixelI*, Bool);
|
|
Void strDCT2x2dnDec(PixelI *, PixelI *, PixelI *, PixelI *);
|
|
|
|
/** 4x4 post filter for second stage **/
|
|
Void strPost4x4SecondStage(PixelI *);
|
|
Void strPost4x4Stage2Split(PixelI*, PixelI*);
|
|
Void strPost4x4Stage2Split_alternate(PixelI*, PixelI*);
|
|
|
|
/** Huffman decode related defines **/
|
|
#define HUFFMAN_DECODE_ROOT_BITS_LOG 3
|
|
#define HUFFMAN_DECODE_ROOT_BITS (5)
|
|
|
|
Int getHuff(const short *pDecodeTable, BitIOInfo* pIO);
|
|
|
|
#endif // WMI_DECODE_H
|
|
|