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  1. /*
  2.  * Copyright © <2010>, 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
  6.  * "Software"), to deal in the Software without restriction, including
  7.  * without limitation the rights to use, copy, modify, merge, publish,
  8.  * distribute, sub license, and/or sell copies of the Software, and to
  9.  * permit persons to whom the Software is furnished to do so, subject to
  10.  * the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice (including the
  13.  * next paragraph) shall be included in all copies or substantial portions
  14.  * of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23.  *
  24.  * This file was originally licensed under the following license
  25.  *
  26.  *  Licensed under the Apache License, Version 2.0 (the "License");
  27.  *  you may not use this file except in compliance with the License.
  28.  *  You may obtain a copy of the License at
  29.  *
  30.  *      http://www.apache.org/licenses/LICENSE-2.0
  31.  *
  32.  *  Unless required by applicable law or agreed to in writing, software
  33.  *  distributed under the License is distributed on an "AS IS" BASIS,
  34.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  35.  *  See the License for the specific language governing permissions and
  36.  *  limitations under the License.
  37.  *
  38.  */
  39. //      Kernel name: RoundShift_C_4x4.asm
  40. //
  41. //      Do (...+32)>>6 to 4x4 (NV12 8x4) interpolated chrominance data
  42. //
  43.  
  44.  
  45. //#if !defined(__RoundShift_C_4x4__)            // Make sure this is only included once
  46. //#define __RoundShift_C_4x4__
  47.  
  48.  
  49.         // TODO: Optimize using instruction compression
  50.         add (16)        acc0<1>:w                                       r[pRESULT,0]<16;16,1>:w                 32:w
  51.         add (16)        acc1<1>:w                                       r[pRESULT,nGRFWIB]<16;16,1>:w   32:w
  52.         asr.sat (16) r[pRESULT,0]<2>:ub                 acc0<16;16,1>:w                                 6:w
  53.         asr.sat (16) r[pRESULT,nGRFWIB]<2>:ub   acc1<16;16,1>:w                                 6:w
  54.        
  55.  
  56. //#endif        // !defined(__RoundShift_C_4x4__)
  57.