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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.    g115:   message descriptor for reading reference data   */
  38. mov (1) g32.8<1>UD 0x07001FUD {align1};
  39. send (16) 0 g38.0<1>UW g32<8,8,1>UW read(surface,2,0,2) mlen 1 rlen 8 {align1};
  40. add (1) g32.4<1>UD g32.4<1,1,1>UD 8UD {align1};
  41. send (16) 0 g46.0<1>UW g32<8,8,1>UW read(surface,2,0,2) mlen 1 rlen 8 {align1};
  42. avg (16) g58.0<1>UW g38.0<16,16,1>UB g38.1<16,16,1>UB {align1};
  43. avg (16) g59.0<1>UW g40.0<16,16,1>UB g40.1<16,16,1>UB {align1};
  44. avg (16) g60.0<1>UW g42.0<16,16,1>UB g42.1<16,16,1>UB {align1};
  45. avg (16) g61.0<1>UW g44.0<16,16,1>UB g44.1<16,16,1>UB {align1};
  46. avg (16) g62.0<1>UW g46.0<16,16,1>UB g46.1<16,16,1>UB {align1};
  47. avg (16) g63.0<1>UW g48.0<16,16,1>UB g48.1<16,16,1>UB {align1};
  48. avg (16) g64.0<1>UW g50.0<16,16,1>UB g50.1<16,16,1>UB {align1};
  49. avg (16) g65.0<1>UW g52.0<16,16,1>UB g52.1<16,16,1>UB {align1};
  50.  
  51. add (1) g32.4<1>UD g32.4<1,1,1>UD 8UD {align1};
  52. send (16) 0 g38.0<1>UW g32<8,8,1>UW read(surface,2,0,2) mlen 1 rlen 8 {align1};
  53. add (1) g32.4<1>UD g32.4<1,1,1>UD 8UD {align1};
  54. send (16) 0 g46.0<1>UW g32<8,8,1>UW read(surface,2,0,2) mlen 1 rlen 8 {align1};
  55. avg (16) g66.0<1>UW g38.0<16,16,1>UB g38.1<16,16,1>UB {align1};
  56. avg (16) g67.0<1>UW g40.0<16,16,1>UB g40.1<16,16,1>UB {align1};
  57. avg (16) g68.0<1>UW g42.0<16,16,1>UB g42.1<16,16,1>UB {align1};
  58. avg (16) g69.0<1>UW g44.0<16,16,1>UB g44.1<16,16,1>UB {align1};
  59. avg (16) g70.0<1>UW g46.0<16,16,1>UB g46.1<16,16,1>UB {align1};
  60. avg (16) g71.0<1>UW g48.0<16,16,1>UB g48.1<16,16,1>UB {align1};
  61. avg (16) g72.0<1>UW g50.0<16,16,1>UB g50.1<16,16,1>UB {align1};
  62. avg (16) g73.0<1>UW g52.0<16,16,1>UB g52.1<16,16,1>UB {align1};
  63.