view release on metacpan or  search on metacpan

src/Source/LibJXR/image/decode/decode.c  view on Meta::CPAN

//*@@@+++@@@@******************************************************************
//
// 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.
//
//*@@@---@@@@******************************************************************
/******************************************************************************

Module Name:
    decode.c 
    
Abstract:    
    Defines the entry point for the console application.

Author:

Revision History:
*******************************************************************************/
#include "strcodec.h"
#include "decode.h"

#ifdef MEM_TRACE
#define TRACE_MALLOC    1
#define TRACE_NEW       0
#define TRACE_HEAP      0
#include "memtrace.h"
#endif

/******************************************************************
Free Adaptive Huffman Table
******************************************************************/
static Void CleanAH(CAdaptiveHuffman **ppAdHuff)
{
    CAdaptiveHuffman *pAdHuff;
    
    if (NULL != ppAdHuff) {
        pAdHuff = *ppAdHuff;
        if (NULL != pAdHuff) {
            free(pAdHuff);
        }
        *ppAdHuff = NULL;
    }
}

static Void CleanAHDec(CCodingContext * pSC)
{
    Int kk;

    for (kk = 0; kk < NUMVLCTABLES; kk++) {
        CleanAH(&(pSC->m_pAHexpt[kk]));
    }
    CleanAH(&(pSC->m_pAdaptHuffCBPCY));
    CleanAH(&(pSC->m_pAdaptHuffCBPCY1));
}

/*************************************************************************
    Initialize an adaptive huffman table
*************************************************************************/
static Int InitializeAH(CAdaptiveHuffman **ppAdHuff, Int iSym)
{