vp8/decoder/dequantize.c


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/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#include "vpx_config.h"
#include "dequantize.h"
#include "vp8/common/idct.h"
#include "vpx_mem/vpx_mem.h"

void vp8_dequantize_b_c(BLOCKD *d)
{
    int i;
    short *DQ  = d->dqcoeff;
    short *Q   = d->qcoeff;
    short *DQC = d->dequant;

    for (i = 0; i < 16; i++)
    {
        DQ[i] = Q[i] * DQC[i];
    }
}

void vp8_dequant_idct_add_c(short *input, short *dq,
                            unsigned char *dest, int stride)
{
    int i;

    for (i = 0; i < 16; i++)
    {
        input[i] = dq[i] * input[i];
    }

    vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);

    vpx_memset(input, 0, 32);

}