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https://github.com/ValveSoftware/Proton.git
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132 lines
4.6 KiB
C
132 lines
4.6 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_COMMON_H
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#define WMI_COMMON_H
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/*************************************************************************
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// Common typedef's
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*************************************************************************/
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typedef enum { ENCODER = 0, DECODER = 1 } CODINGMODE;
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typedef enum tagBand
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{
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BAND_HEADER = 0,
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BAND_DC = 1,
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BAND_LP = 2,
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BAND_AC = 3,
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BAND_FL = 4
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} BAND;
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/*************************************************************************
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struct / class definitions
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*************************************************************************/
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//#define SIGNATURE_BYTES 8 // Bytes for GDI+ signature
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#define CODEC_VERSION 1
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#define CODEC_SUBVERSION 0
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#define CODEC_SUBVERSION_NEWSCALING_SOFT_TILES 1
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#define CODEC_SUBVERSION_NEWSCALING_HARD_TILES 9
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#define CONTEXTX 8
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#define CTDC 5
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#define NUMVLCTABLES 21 // CONTEXTX * 2 + CTDC
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#define AVG_NDIFF 3
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#define MAXTOTAL 32767 // 511 should be enough
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/** Quantization related defines **/
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#define SHIFTZERO 1 /* >= 0 */
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#define QPFRACBITS 2 /* or 0 only supported */
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/** adaptive huffman encoding / decoding struct **/
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typedef struct CAdaptiveHuffman
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{
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Int m_iNSymbols;
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const Int *m_pTable;
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const Int *m_pDelta, *m_pDelta1;
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Int m_iTableIndex;
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const short *m_hufDecTable;
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Bool m_bInitialize;
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//Char m_pLabel[8]; // for debugging - label attached to constructor
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Int m_iDiscriminant, m_iDiscriminant1;
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Int m_iUpperBound;
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Int m_iLowerBound;
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} CAdaptiveHuffman;
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/************************************************************************************
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Context structures
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************************************************************************************/
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typedef struct CAdaptiveModel {
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Int m_iFlcState[2];
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Int m_iFlcBits[2];
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BAND m_band;
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} CAdaptiveModel;
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typedef struct CCBPModel {
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Int m_iCount0[2];
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Int m_iCount1[2];
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Int m_iState[2];
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} CCBPModel;
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/*************************************************************************
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globals
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*************************************************************************/
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extern Int grgiZigzagInv4x4_lowpass[];
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extern Int grgiZigzagInv4x4H[];
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extern Int grgiZigzagInv4x4V[];
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extern const Int gSignificantRunBin[];
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extern const Int gSignificantRunFixedLength[];
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static const Int cblkChromas[] = {0,4,8,16, 16,16,16, 0,0};
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/*************************************************************************
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function declarations
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*************************************************************************/
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// common utilities
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Void Clean (CAdaptiveHuffman *pAdHuff);
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CAdaptiveHuffman *Allocate (Int iNSymbols, CODINGMODE cm);
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/* Timing functions */
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void reset_timing(double *time);
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void report_timing(const char *s, double time);
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// static double timeperclock;
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/** adaptive model functions **/
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Void UpdateModelMB (COLORFORMAT cf, Int iChannels, Int iLaplacianMean[], CAdaptiveModel *m_pModel);
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/** adaptive huffman encoder / decoder functions **/
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Void Adapt (CAdaptiveHuffman *pAdHuff, Bool bFixedTables);
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Void AdaptFixed (CAdaptiveHuffman *pAdHuff);
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Void AdaptDiscriminant (CAdaptiveHuffman *pAdHuff);
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#ifndef _PREFAST_
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#pragma warning(disable:4068)
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#endif
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#endif // WMI_COMMON_H
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