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  1. /*
  2.  * Decode Intra_PCM macroblock
  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: Intra_PCM.asm
  41. //
  42. // Decoding of I_PCM macroblock
  43. //
  44. //  $Revision: 8 $
  45. //  $Date: 10/18/06 4:10p $
  46. //
  47.  
  48. // ----------------------------------------------------
  49. //  Main: Intra_PCM
  50. // ----------------------------------------------------
  51.  
  52. .kernel Intra_PCM
  53. INTRA_PCM:
  54.  
  55. #ifdef _DEBUG
  56. // WA for FULSIM so we'll know which kernel is being debugged
  57. mov (1) acc0:ud 0x03aa55a5:ud
  58. #endif
  59.  
  60. #include "SetupForHWMC.asm"
  61.  
  62. // Not actually needed here but just want to slow down the Intra-PCM to avoid race condition
  63. //
  64. #ifdef SW_SCOREBOARD
  65.         and (1)   REG_INTRA_PRED_AVAIL_FLAG_WORD<1>:w   REG_INTRA_PRED_AVAIL_FLAG_WORD<0;1,0>:w 0xffe0:w        // Ensure all neighbor avail flags are "0"
  66.    CALL(scoreboard_start_intra,1)
  67.         wait    n0:ud           //      Now wait for scoreboard to response
  68. #endif
  69.  
  70. //
  71. //  Decoding Y blocks
  72. //
  73. //      In I_PCM mode, the samples are already arranged in raster scan order within the macroblock.
  74. //      We just need to save them to picture buffers
  75. //
  76.     #include "save_I_PCM.asm"               // Save to destination picture buffers
  77.  
  78. #ifdef SW_SCOREBOARD    
  79.    #include "scoreboard_update.asm"
  80. #endif
  81.  
  82. // Terminate the thread
  83. //
  84.    #include "EndIntraThread.asm"
  85.  
  86. // End of Intra_PCM
  87.