mirror of
https://github.com/ValveSoftware/Proton.git
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144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
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//*@@@+++@@@@******************************************************************
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//
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// Copyright <20> Microsoft Corp.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// <20> Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// <20> Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//*@@@---@@@@******************************************************************
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#ifndef WMI_DECODE_H
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#define WMI_DECODE_H
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typedef struct CWMDecoderParameters {
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/** ROI decode **/
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Bool bDecodeFullFrame;
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Bool bDecodeFullWidth;
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/** thumbnail decode **/
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Bool bSkipFlexbits;
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size_t cThumbnailScale; // 1: cThumbnailScale thumbnail, only supports cThumbnailScale = 2^m for now
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Bool bDecodeHP;
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Bool bDecodeLP;
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// Region of interest decoding
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size_t cROILeftX;
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size_t cROIRightX;
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size_t cROITopY;
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size_t cROIBottomY;
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// table lookups for rotation and flip
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size_t * pOffsetX;
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size_t * pOffsetY;
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} CWMDecoderParameters;
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Void predCBPDec(CWMImageStrCodec *, CCodingContext *);
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Void predDCACDec(CWMImageStrCodec *);
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Void predACDec(CWMImageStrCodec *);
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Int dequantizeMacroblock(CWMImageStrCodec *);
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Int invTransformMacroblock(CWMImageStrCodec * pSC);
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Int invTransformMacroblock_alteredOperators_hard(CWMImageStrCodec * pSC);
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Int DecodeMacroblockDC(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
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Int DecodeMacroblockLowpass(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
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Int DecodeMacroblockHighpass(CWMImageStrCodec * pSC, CCodingContext *pContext, Int iMBX, Int iMBY);
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Int AdaptLowpassDec(struct CCodingContext *);
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Int AdaptHighpassDec(struct CCodingContext *);
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Void ResetCodingContextDec(CCodingContext *pContext);
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Void FreeCodingContextDec(struct CWMImageStrCodec *pSC);
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/*************************************************************************/
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// Inverse transform functions
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// 2-point post filter for boundaries (only used in 420 UV DC subband)
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Void strPost2(PixelI *, PixelI *);
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// 2x2 post filter (only used in 420 UV DC subband)
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Void strPost2x2(PixelI *, PixelI *, PixelI *, PixelI *);
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/** 4-point post filter for boundaries **/
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Void strPost4(PixelI *, PixelI *, PixelI *, PixelI *);
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/** data allocation in working buffer (first stage) **/
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/** Y, 444 U and V **/
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/** 0 1 2 3 **/
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/** 32 33 34 35 **/
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/** 64 65 66 67 **/
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/** 96 97 98 99 **/
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/** 420 U and V **/
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/** 0 2 4 6 **/
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/** 64 66 68 70 **/
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/** 128 130 132 134 **/
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/** 192 194 196 198 **/
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/** 4x4 inverse DCT for first stage **/
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Void strIDCT4x4FirstStage(PixelI *);
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Void strIDCT4x4Stage1(PixelI*);
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Void strIDCT4x4FirstStage420UV(PixelI *);
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/** 4x4 post filter for first stage **/
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Void strPost4x4FirstStage(PixelI *);
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Void strPost4x4Stage1Split(PixelI*, PixelI*, Int, Int, Bool);
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Void strPost4x4Stage1(PixelI*, Int, Int, Bool);
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Void strPost4x4Stage1Split_alternate(PixelI*, PixelI*, Int);
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Void strPost4x4Stage1_alternate(PixelI*, Int);
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//Void strPost4x4Stage1Split_420(PixelI*, PixelI*);
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//Void strPost4x4Stage1_420(PixelI*);
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Void strPost4x4FirstStage420UV(PixelI *);
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/** data allocation in working buffer (second stage)**/
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/** Y, 444 U and V **/
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/** 0 4 8 12 **/
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/** 128 132 136 140 **/
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/** 256 260 264 268 **/
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/** 384 388 392 396 **/
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/** 420 U and V **/
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/** 0 8 **/
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/** 256 264 **/
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/** 4x4 invesr DCT for second stage **/
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//Void strIDCT4x4SecondStage(PixelI *);
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Void strIDCT4x4Stage2(PixelI*);
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Void strNormalizeDec(PixelI*, Bool);
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Void strDCT2x2dnDec(PixelI *, PixelI *, PixelI *, PixelI *);
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/** 4x4 post filter for second stage **/
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Void strPost4x4SecondStage(PixelI *);
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Void strPost4x4Stage2Split(PixelI*, PixelI*);
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Void strPost4x4Stage2Split_alternate(PixelI*, PixelI*);
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/** Huffman decode related defines **/
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#define HUFFMAN_DECODE_ROOT_BITS_LOG 3
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#define HUFFMAN_DECODE_ROOT_BITS (5)
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Int getHuff(const short *pDecodeTable, BitIOInfo* pIO);
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#endif // WMI_DECODE_H
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