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  1. /*
  2.  * Copyright © 2009 Intel Corporation
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the "Software"),
  6.  * to deal in the Software without restriction, including without limitation
  7.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8.  * and/or sell copies of the Software, and to permit persons to whom the
  9.  * Software is furnished to do so, subject to the following conditions:
  10.  *
  11.  * The above copyright notice and this permission notice (including the next
  12.  * paragraph) shall be included in all copies or substantial portions of the
  13.  * Software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20.  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21.  * SOFTWARE.
  22.  *
  23.  * Author:
  24.  *    Zou Nan hai <nanhai.zou@intel.com>
  25.  */  
  26.  
  27. /* if (motion_vect.x & 1) {
  28.  *   if (motion_vect.y & 1)
  29.  *       half_pixel in x and y;
  30.  *   else
  31.  *       half_pixel in x;
  32.  * } else {
  33.  *      if (motion_vect.y & 1)
  34.  *        half_pixel y;
  35.  *      else
  36.  *        full_pixel_read;     
  37.  * }     
  38.  */
  39.  
  40.         and.z (1) null mv1<1,1,1>UW 1UD {align1};      
  41.         (f0) jmpi LL1;
  42.         and.z (1) null mv2<1,1,1>UW 1UD {align1};      
  43.         (f0) jmpi LL2;
  44.         include(`read_frame_x1y1_y.g4i')
  45.         jmpi LL5;
  46. LL2:
  47.         include(`read_frame_x1y0_y.g4i')
  48.         jmpi LL5;
  49. LL1:
  50.         and.z (1) null mv2<1,1,1>UW 1UD {align1};      
  51.         (f0) jmpi LL4;
  52.         include(`read_frame_x0y1_y.g4i')
  53.         jmpi LL5;
  54. LL4:
  55.         include(`read_frame_x0y0_y.g4i')
  56. LL5:
  57.  
  58.