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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.  *    Yan Li <li.l.yan@intel.com>
  26.  *    Liu Xi bin<xibin.liu@intel.com>
  27.  */
  28. /* GRF allocation:
  29.    g1~g30: constant buffer
  30.            g1~g2:intra IQ matrix
  31.            g3~g4:non intra IQ matrix
  32.            g5~g20:IDCT table
  33.    g31:    thread payload
  34.    g58~g81:reference data
  35.    g82:    thread payload backup
  36.    g83~g106:IDCT data
  37.    g32:   message descriptor for reading reference data   */
  38.  
  39. mov (8) g82.0<1>UD g31.0<8,8,1>UD {align1};
  40. mov (2) g31.0<1>UD g82.12<2,2,1>UW {align1};
  41. mov (1) g126.8<1>UD ip {align1};
  42. mov (1) ip g21.0<1,1,1>UD {align1};
  43.  
  44. and.nz (1) null g82.2<1,1,1>UW 0x0800UW {align1};          //second field-picture?
  45. (f0) jmpi first_field_picture;
  46.  
  47. and (1) g32.0<1>UW g82.10<1,1,1>UW 0x0003UW {align1};            
  48. cmp.e (1) null g32.0<1,1,1>UW 0x0002UW {align1};           //bottom field?
  49. (f0) jmpi bottom_field;
  50.  
  51. top_field:
  52. and.z (1) null g82.2<1,1,1>UW 0x1000UW {align1};           //motion vertical field select forward
  53. (f0) jmpi first_field_picture;                             //second field-picture top field from top
  54. mov (1) g32.28<1>UD 1UD {align1};
  55. jmpi first_field_picture;                                  //second field-picture top field from bottom
  56.  
  57. bottom_field:
  58. and.nz (1) null g82.2<1,1,1>UW 0x1000UW {align1};          //motion vertical field select forward
  59. (f0) jmpi first_field_picture;                             //second field-picture bottom field from bottom
  60. mov (1) g32.28<1>UD 0UD {align1};
  61. jmpi second_field_picture;                                 //second field-picture bottom field from top
  62.  
  63. //Y of top field
  64. first_field_picture:
  65. asr (2) g31.14<1>W g82.16<2,2,1>W 1W {align1};
  66. add (2) g32.0<1>UD g31.0<2,2,1>UD g31.14<2,2,1>W {align1};
  67. mov (1) g32.28<1>UD 0UD {align1};
  68. and.nz (1) null g82.2<1,1,1>UW 0x1000UW {align1};             //motion vertical field select forward
  69. (f0) mov (1) g32.28<1>UD 1UD {align1};
  70. shl (1) g32.4<1>UD g32.4<1,1,1>UD 1UD {align1};
  71. add (1) g32.4<1>UD g32.4<1,1,1>UD g32.28<1,1,1>UD {align1};
  72. define(`surface',`4')
  73. define(`mv1',`g82.16')
  74. define(`mv2',`g82.18')
  75. include(`field_motion_y.g4i')
  76. //UV of top field
  77. shr (2) g31.0<1>UD g31.0<2,2,1>UD 1UD {align1};
  78. asr (2) g31.14<1>W g82.16<2,2,1>W 2W {align1};
  79. add (2) g32.0<1>UD g31.0<2,2,1>UD g31.14<2,2,1>W {align1};
  80. mov (1) g32.28<1>UD 0UD {align1};
  81. and.nz (1) null g82.2<1,1,1>UW 0x1000UW {align1};             //motion vertical field select forward
  82. (f0) mov (1) g32.28<1>UD 1UD {align1};
  83. shl (1) g32.4<1>UD g32.4<1,1,1>UD 1UD {align1};
  84. add (1) g32.4<1>UD g32.4<1,1,1>UD g32.28<1,1,1>UD {align1};
  85. define(`surface_u', `5')
  86. define(`surface_v', `6')
  87. define(`mv1',`g82.16')
  88. define(`mv2',`g82.18')
  89. include(`field_motion_uv.g4i')
  90. jmpi field_addidct;
  91.  
  92. second_field_picture:
  93. //Y of bottom field
  94. asr (2) g31.14<1>W g82.16<2,2,1>W 1W {align1};
  95. add (2) g32.0<1>UD g31.0<2,2,1>UD g31.14<2,2,1>W {align1};
  96. shl (1) g32.4<1>UD g32.4<1,1,1>UD 1UD {align1};
  97. define(`surface',`3')
  98. define(`mv1',`g82.16')
  99. define(`mv2',`g82.18')
  100. include(`field_motion_y.g4i')
  101. //UV of bottom field
  102. shr (2) g31.0<1>UD g31.0<2,2,1>UD 1UD {align1};
  103. asr (2) g31.14<1>W g82.16<2,2,1>W 2W {align1};
  104. add (2) g32.0<1>UD g31.0<2,2,1>UD g31.14<2,2,1>W {align1};
  105. shl (1) g32.4<1>UD g32.4<1,1,1>UD 1UD {align1};
  106. define(`surface_u', `10')
  107. define(`surface_v', `11')
  108. define(`mv1',`g82.16')
  109. define(`mv2',`g82.18')
  110. include(`field_motion_uv.g4i')
  111.  
  112. field_addidct:
  113. include(`field_addidct.g4i')
  114. out:
  115. send (16) 0 acc0<1>UW g0<8,8,1>UW
  116.         thread_spawner(0, 0, 0) mlen 1 rlen 0 { align1 EOT};
  117.