shithub: libvpx

ref: d36659cec7fab96cedc67db4d511ed7135637d0e
dir: /vp8/common/x86/idct_blk_sse2.c/

/*
 *  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 "vp8_rtcd.h"

void vp8_idct_dequant_0_2x_sse2
            (short *q, short *dq ,
             unsigned char *dst, int dst_stride);
void vp8_idct_dequant_full_2x_sse2
            (short *q, short *dq ,
             unsigned char *dst, int dst_stride);

void vp8_dequant_idct_add_y_block_sse2
            (short *q, short *dq,
             unsigned char *dst, int stride, char *eobs)
{
    int i;

    for (i = 0; i < 4; i++)
    {
        if (((short *)(eobs))[0])
        {
            if (((short *)(eobs))[0] & 0xfefe)
                vp8_idct_dequant_full_2x_sse2 (q, dq, dst, stride);
            else
                vp8_idct_dequant_0_2x_sse2 (q, dq, dst, stride);
        }
        if (((short *)(eobs))[1])
        {
            if (((short *)(eobs))[1] & 0xfefe)
                vp8_idct_dequant_full_2x_sse2 (q+32, dq, dst+8, stride);
            else
                vp8_idct_dequant_0_2x_sse2 (q+32, dq, dst+8, stride);
        }
        q    += 64;
        dst  += stride*4;
        eobs += 4;
    }
}

void vp8_dequant_idct_add_uv_block_sse2
            (short *q, short *dq,
             unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
{
    if (((short *)(eobs))[0])
    {
        if (((short *)(eobs))[0] & 0xfefe)
            vp8_idct_dequant_full_2x_sse2 (q, dq, dstu, stride);
        else
            vp8_idct_dequant_0_2x_sse2 (q, dq, dstu, stride);
    }
    q    += 32;
    dstu += stride*4;

    if (((short *)(eobs))[1])
    {
        if (((short *)(eobs))[1] & 0xfefe)
            vp8_idct_dequant_full_2x_sse2 (q, dq, dstu, stride);
        else
            vp8_idct_dequant_0_2x_sse2 (q, dq, dstu, stride);
    }
    q    += 32;

    if (((short *)(eobs))[2])
    {
        if (((short *)(eobs))[2] & 0xfefe)
            vp8_idct_dequant_full_2x_sse2 (q, dq, dstv, stride);
        else
            vp8_idct_dequant_0_2x_sse2 (q, dq, dstv, stride);
    }
    q    += 32;
    dstv += stride*4;

    if (((short *)(eobs))[3])
    {
      if (((short *)(eobs))[3] & 0xfefe)
          vp8_idct_dequant_full_2x_sse2 (q, dq, dstv, stride);
      else
          vp8_idct_dequant_0_2x_sse2 (q, dq, dstv, stride);
    }
}