shithub: libvpx

ref: cf671e2756d1b27ff1ac222a2fb5f3800f63a5d5
dir: /vp9/decoder/x86/vp9_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_ports/config.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/decoder/vp9_dequantize.h"

void vp9_idct_dequant_dc_0_2x_sse2(short *q, const short *dq,
                                   unsigned char *pre, unsigned char *dst,
                                   int dst_stride, const short *dc);

void vp9_idct_dequant_dc_full_2x_sse2(short *q, const short *dq,
                                      unsigned char *pre, unsigned char *dst,
                                      int dst_stride, const short *dc);

void vp9_idct_dequant_0_2x_sse2(short *q, const short *dq,
                                unsigned char *pre, unsigned char *dst,
                                int dst_stride, int blk_stride);

void vp9_idct_dequant_full_2x_sse2(short *q, const short *dq,
                                   unsigned char *pre, unsigned char *dst,
                                   int dst_stride, int blk_stride);

void vp9_dequant_dc_idct_add_y_block_sse2(short *q, const short *dq,
                                          unsigned char *pre,
                                          unsigned char *dst,
                                          int stride, unsigned short *eobs,
                                          const short *dc) {
  int i;

  for (i = 0; i < 4; i++) {
    if (((short *)(eobs))[0] & 0xfefe)
      vp9_idct_dequant_dc_full_2x_sse2(q, dq, pre, dst, stride, dc);
    else
      vp9_idct_dequant_dc_0_2x_sse2(q, dq, pre, dst, stride, dc);

    if (((short *)(eobs))[1] & 0xfefe)
      vp9_idct_dequant_dc_full_2x_sse2(q + 32, dq, pre + 8, dst + 8,
                                       stride, dc + 2);
    else
      vp9_idct_dequant_dc_0_2x_sse2(q + 32, dq, pre + 8, dst + 8,
                                    stride, dc + 2);

    q    += 64;
    dc   += 4;
    pre  += 64;
    dst  += stride * 4;
    eobs += 4;
  }
}

void vp9_dequant_idct_add_y_block_sse2(short *q, const short *dq,
                                       unsigned char *pre, unsigned char *dst,
                                       int stride, unsigned short *eobs) {
  int i;

  for (i = 0; i < 4; i++) {
    if (((short *)(eobs))[0] & 0xfefe)
      vp9_idct_dequant_full_2x_sse2(q, dq, pre, dst, stride, 16);
    else
      vp9_idct_dequant_0_2x_sse2(q, dq, pre, dst, stride, 16);

    if (((short *)(eobs))[1] & 0xfefe)
      vp9_idct_dequant_full_2x_sse2(q + 32, dq, pre + 8, dst + 8, stride, 16);
    else
      vp9_idct_dequant_0_2x_sse2(q + 32, dq, pre + 8, dst + 8, stride, 16);

    q    += 64;
    pre  += 64;
    dst  += stride * 4;
    eobs += 4;
  }
}

void vp9_dequant_idct_add_uv_block_sse2(short *q, const short *dq,
                                        unsigned char *pre,
                                        unsigned char *dstu,
                                        unsigned char *dstv,
                                        int stride, unsigned short *eobs) {
  if (((short *)(eobs))[0] & 0xfefe)
    vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstu, stride, 8);
  else
    vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstu, stride, 8);

  q    += 32;
  pre  += 32;
  dstu += stride * 4;

  if (((short *)(eobs))[1] & 0xfefe)
    vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstu, stride, 8);
  else
    vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstu, stride, 8);

  q    += 32;
  pre  += 32;

  if (((short *)(eobs))[2] & 0xfefe)
    vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstv, stride, 8);
  else
    vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstv, stride, 8);

  q    += 32;
  pre  += 32;
  dstv += stride * 4;

  if (((short *)(eobs))[3] & 0xfefe)
    vp9_idct_dequant_full_2x_sse2(q, dq, pre, dstv, stride, 8);
  else
    vp9_idct_dequant_0_2x_sse2(q, dq, pre, dstv, stride, 8);
}