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  1. /*
  2.  * Load reference 6x3 area for chroma NV12 4x4 MC
  3.  * Copyright © <2010>, Intel Corporation.
  4.  *
  5.  * Permission is hereby granted, free of charge, to any person obtaining a
  6.  * copy of this software and associated documentation files (the
  7.  * "Software"), to deal in the Software without restriction, including
  8.  * without limitation the rights to use, copy, modify, merge, publish,
  9.  * distribute, sub license, and/or sell copies of the Software, and to
  10.  * permit persons to whom the Software is furnished to do so, subject to
  11.  * the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice (including the
  14.  * next paragraph) shall be included in all copies or substantial portions
  15.  * of the Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  21.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24.  *
  25.  * This file was originally licensed under the following license
  26.  *
  27.  *  Licensed under the Apache License, Version 2.0 (the "License");
  28.  *  you may not use this file except in compliance with the License.
  29.  *  You may obtain a copy of the License at
  30.  *
  31.  *      http://www.apache.org/licenses/LICENSE-2.0
  32.  *
  33.  *  Unless required by applicable law or agreed to in writing, software
  34.  *  distributed under the License is distributed on an "AS IS" BASIS,
  35.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  36.  *  See the License for the specific language governing permissions and
  37.  *  limitations under the License.
  38.  *
  39.  */
  40. // Kernel name: LoadRef_C_6x3.asm
  41. //
  42. // Load reference 6x3 area for chroma NV12 4x4 MC
  43.  
  44.  
  45. //#if !defined(__LOADREF_C_6x3__)               // Make sure this is only included once
  46. //#define __LOADREF_C_6x3__
  47.  
  48.  
  49. #ifdef DEV_ILK
  50.         add (1)         pMSGDSC:ud                      gMSGDSC_R:ud                                    0x00100010:ud
  51. #else
  52.         add (1)         pMSGDSC:ud                      gMSGDSC_R:ud                                    0x00010010:ud
  53. #endif  // DEV_ILK
  54.  
  55.         // Compute integer and fractional components of MV
  56.     asr (2)             gMVX_INT<1>:w           r[pMV,0]<2;2,1>:w                               0x03:w {NoDDClr}
  57.     and (2)             gMVX_FRACC<1>:w         r[pMV,0]<2;2,1>:w                               0x07:w {NoDDChk}
  58.        
  59.         // Compute top-left corner position to be loaded
  60.     mov (2)             gMSGSRC.0<1>:d          gMVX_INT<2;2,1>:w
  61.         shl (1)         gMSGSRC.0:d                     gMSGSRC.0:d                                             1:w
  62.  
  63.     // Read 8x3 pixels
  64.     mov (1)             gMSGSRC.2:ud            0x00020005:ud
  65.     send (8)    gudREFC(0)<1>       mMSGHDRC                                            gMSGSRC<8;8,1>:ud       DAPREAD pMSGDSC:ud
  66.  
  67.        
  68. //#endif        // !defined(__LOADREF_C_6x3__)
  69.