shithub: libvpx

ref: 4e6b5079c65ccf396c0c4a606dd7e13ccb7da54f
dir: /vp8/common/mips/dspr2/idct_blk_dspr2.c/

/*
 *  Copyright (c) 2012 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 "vp8_rtcd.h"

#if HAVE_DSPR2

void vp8_dequant_idct_add_y_block_dspr2
(short *q, short *dq,
 unsigned char *dst, int stride, char *eobs)
{
    int i, j;

    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            if (*eobs++ > 1)
                vp8_dequant_idct_add_dspr2(q, dq, dst, stride);
            else
            {
                vp8_dc_only_idct_add_dspr2(q[0]*dq[0], dst, stride, dst, stride);
                ((int *)q)[0] = 0;
            }

            q   += 16;
            dst += 4;
        }

        dst += 4 * stride - 16;
    }
}

void vp8_dequant_idct_add_uv_block_dspr2
(short *q, short *dq,
 unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
{
    int i, j;

    for (i = 0; i < 2; i++)
    {
        for (j = 0; j < 2; j++)
        {
            if (*eobs++ > 1)
                vp8_dequant_idct_add_dspr2(q, dq, dstu, stride);
            else
            {
                vp8_dc_only_idct_add_dspr2(q[0]*dq[0], dstu, stride, dstu, stride);
                ((int *)q)[0] = 0;
            }

            q    += 16;
            dstu += 4;
        }

        dstu += 4 * stride - 8;
    }

    for (i = 0; i < 2; i++)
    {
        for (j = 0; j < 2; j++)
        {
            if (*eobs++ > 1)
                vp8_dequant_idct_add_dspr2(q, dq, dstv, stride);
            else
            {
                vp8_dc_only_idct_add_dspr2(q[0]*dq[0], dstv, stride, dstv, stride);
                ((int *)q)[0] = 0;
            }

            q    += 16;
            dstv += 4;
        }

        dstv += 4 * stride - 8;
    }
}

#endif