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  1. /* GRF allocation:
  2.    g1~g30: constant buffer
  3.            g1~g2:intra IQ matrix
  4.            g3~g4:non intra IQ matrix
  5.            g5~g20:IDCT table
  6.    g31:    thread payload
  7.    g58~g81:reference data
  8.    g82:    thread payload backup
  9.    g83~g106:IDCT data
  10.    g115:   message descriptor for reading reference data   */
  11. mov (1) g115.8<1>UD 0x07000FUD {align1};
  12. send (16) 0 g40.0<1>UW g115<8,8,1>UW read(surface_u, 2, 0, 2) mlen 1 rlen 4 {align1};//U
  13. send (16) 0 g45.0<1>UW g115<8,8,1>UW read(surface_v, 2, 0, 2) mlen 1 rlen 4 {align1};//V
  14. mov (1) g115.8<1>UD 0x01000FUD {align1};
  15. add (1) g115.4<1>UD g115.4<1,1,1>UD 8UD {align1};
  16. send (16) 0 g44.0<1>UW g115<8,8,1>UW read(surface_u, 2, 0, 2) mlen 1 rlen 1 {align1};//U
  17. send (16) 0 g49.0<1>UW g115<8,8,1>UW read(surface_v, 2, 0, 2) mlen 1 rlen 1 {align1};//V
  18. //U
  19. add (16) g32.0<1>UW g40.0<16,8,1>UB g41.0<16,8,1>UB {align1};
  20. add (16) g33.0<1>UW g41.0<16,8,1>UB g42.0<16,8,1>UB {align1};
  21. add (16) g34.0<1>UW g42.0<16,8,1>UB g43.0<16,8,1>UB {align1};
  22. add (16) g35.0<1>UW g43.0<16,8,1>UB g44.0<16,8,1>UB {align1};
  23.  
  24. add (16) g32.0<1>UW g32.0<16,8,1>UW g40.1<16,8,1>UB {align1};
  25. add (16) g33.0<1>UW g33.0<16,8,1>UW g41.1<16,8,1>UB {align1};
  26. add (16) g34.0<1>UW g34.0<16,8,1>UW g42.1<16,8,1>UB {align1};
  27. add (16) g35.0<1>UW g35.0<16,8,1>UW g43.1<16,8,1>UB {align1};
  28.  
  29. add (16) g32.0<1>UW g32.0<16,8,1>UW g41.1<16,8,1>UB {align1};
  30. add (16) g33.0<1>UW g33.0<16,8,1>UW g42.1<16,8,1>UB {align1};
  31. add (16) g34.0<1>UW g34.0<16,8,1>UW g43.1<16,8,1>UB {align1};
  32. add (16) g35.0<1>UW g35.0<16,8,1>UW g44.1<16,8,1>UB {align1};
  33. //V
  34. add (16) g36.0<1>UW g45.0<16,8,1>UB g46.0<16,8,1>UB {align1};
  35. add (16) g37.0<1>UW g46.0<16,8,1>UB g47.0<16,8,1>UB {align1};
  36. add (16) g38.0<1>UW g47.0<16,8,1>UB g48.0<16,8,1>UB {align1};
  37. add (16) g39.0<1>UW g48.0<16,8,1>UB g49.0<16,8,1>UB {align1};
  38.  
  39. add (16) g36.0<1>UW g36.0<16,8,1>UW g45.1<16,8,1>UB {align1};
  40. add (16) g37.0<1>UW g37.0<16,8,1>UW g46.1<16,8,1>UB {align1};
  41. add (16) g38.0<1>UW g38.0<16,8,1>UW g47.1<16,8,1>UB {align1};
  42. add (16) g39.0<1>UW g39.0<16,8,1>UW g48.1<16,8,1>UB {align1};
  43.  
  44. add (16) g36.0<1>UW g36.0<16,8,1>UW g46.1<16,8,1>UB {align1};
  45. add (16) g37.0<1>UW g37.0<16,8,1>UW g47.1<16,8,1>UB {align1};
  46. add (16) g38.0<1>UW g38.0<16,8,1>UW g48.1<16,8,1>UB {align1};
  47. add (16) g39.0<1>UW g39.0<16,8,1>UW g49.1<16,8,1>UB {align1};
  48.  
  49. shr (32) g32.0<1>UW g32.0<16,16,1>UW 2UW {align1 compr};
  50. shr (32) g34.0<1>UW g34.0<16,16,1>UW 2UW {align1 compr};
  51. shr (32) g36.0<1>UW g36.0<16,16,1>UW 2UW {align1 compr};
  52. shr (32) g38.0<1>UW g38.0<16,16,1>UW 2UW {align1 compr};
  53.  
  54.