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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 (1) g32.8<1>UD 0x7000FUD {align1}; //8*16
  40. send (16) 0 g40.0<1>UW g32<8,8,1>UW read(surface_u, 2, 0, 2) mlen 1 rlen 4 {align1};//U
  41. send (16) 0 g44.0<1>UW g32<8,8,1>UW read(surface_v, 2, 0, 2) mlen 1 rlen 4 {align1};//V
  42. //U
  43. mov (8) g74.0<1>UW  g40.0<8,8,1>UB {align1};
  44. mov (8) g74.16<1>UW g41.0<8,8,1>UB {align1};
  45. mov (8) g75.0<1>UW  g42.0<8,8,1>UB {align1};
  46. mov (8) g75.16<1>UW g43.0<8,8,1>UB {align1};
  47. //V
  48. mov (8) g78.0<1>UW  g44.0<8,8,1>UB {align1};
  49. mov (8) g78.16<1>UW g45.0<8,8,1>UB {align1};
  50. mov (8) g79.0<1>UW  g46.0<8,8,1>UB {align1};
  51. mov (8) g79.16<1>UW g47.0<8,8,1>UB {align1};
  52.  
  53. add (1) g32.4<1>UD g32.4<1,1,1>UD 8UD {align1};
  54. send (16) 0 g40.0<1>UW g32<8,8,1>UW read(surface_u, 2, 0, 2) mlen 1 rlen 4 {align1};//U
  55. send (16) 0 g44.0<1>UW g32<8,8,1>UW read(surface_v, 2, 0, 2) mlen 1 rlen 4 {align1};//V
  56. //U
  57. mov (8) g76.0<1>UW  g40.0<8,8,1>UB {align1};
  58. mov (8) g76.16<1>UW g41.0<8,8,1>UB {align1};
  59. mov (8) g77.0<1>UW  g42.0<8,8,1>UB {align1};
  60. mov (8) g77.16<1>UW g43.0<8,8,1>UB {align1};
  61. //V
  62. mov (8) g80.0<1>UW  g44.0<8,8,1>UB {align1};
  63. mov (8) g80.16<1>UW g45.0<8,8,1>UB {align1};
  64. mov (8) g81.0<1>UW  g46.0<8,8,1>UB {align1};
  65. mov (8) g81.16<1>UW g47.0<8,8,1>UB {align1};
  66.