i965_drv_video/shaders/mpeg2/vld/addidct.g4i

/*
 * Copyright © 2008 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Author:
 *    Zou Nan hai <nanhai.zou@intel.com>
 *    Yan Li <li.l.yan@intel.com>
 *    Liu Xi bin<xibin.liu@intel.com>
 */
/* GRF allocation:
   g1~g30: constant buffer
           g1~g2:intra IQ matrix
           g3~g4:non intra IQ matrix
           g5~g20:IDCT table
   g31:    thread payload 
   g32:    message descriptor for reading reference data
   g58~g81:reference data
   g82:    thread payload backup
   g83~g106:IDCT data                           */
mov (2) g31.0<1>UD g82.12<2,2,1>UW {align1};          //restore x and y

and.nz (1) null g82.2<1,1,1>UW 0x20UW {align1};       //dct_type
(f0) jmpi field_dct;

add (16) g58.0<1>W g83.0<16,16,1>W g58.0<16,16,2>UB {align1};
add (16) g59.0<1>W g84.0<16,16,1>W g59.0<16,16,2>UB {align1};
add (16) g60.0<1>W g85.0<16,16,1>W g60.0<16,16,2>UB {align1};
add (16) g61.0<1>W g86.0<16,16,1>W g61.0<16,16,2>UB {align1};
add (16) g62.0<1>W g87.0<16,16,1>W g62.0<16,16,2>UB {align1};
add (16) g63.0<1>W g88.0<16,16,1>W g63.0<16,16,2>UB {align1};
add (16) g64.0<1>W g89.0<16,16,1>W g64.0<16,16,2>UB {align1};
add (16) g65.0<1>W g90.0<16,16,1>W g65.0<16,16,2>UB {align1};
add (16) g66.0<1>W g91.0<16,16,1>W g66.0<16,16,2>UB {align1};
add (16) g67.0<1>W g92.0<16,16,1>W g67.0<16,16,2>UB {align1};
add (16) g68.0<1>W g93.0<16,16,1>W g68.0<16,16,2>UB {align1};
add (16) g69.0<1>W g94.0<16,16,1>W g69.0<16,16,2>UB {align1};
add (16) g70.0<1>W g95.0<16,16,1>W g70.0<16,16,2>UB {align1};
add (16) g71.0<1>W g96.0<16,16,1>W g71.0<16,16,2>UB {align1};
add (16) g72.0<1>W g97.0<16,16,1>W g72.0<16,16,2>UB {align1};
add (16) g73.0<1>W g98.0<16,16,1>W g73.0<16,16,2>UB {align1};
jmpi write_back;

field_dct:
add (16) g58.0<1>W g83.0<16,16,1>W g58.0<16,16,2>UB {align1};
add (16) g59.0<1>W g91.0<16,16,1>W g59.0<16,16,2>UB {align1};
add (16) g60.0<1>W g84.0<16,16,1>W g60.0<16,16,2>UB {align1};
add (16) g61.0<1>W g92.0<16,16,1>W g61.0<16,16,2>UB {align1};
add (16) g62.0<1>W g85.0<16,16,1>W g62.0<16,16,2>UB {align1};
add (16) g63.0<1>W g93.0<16,16,1>W g63.0<16,16,2>UB {align1};
add (16) g64.0<1>W g86.0<16,16,1>W g64.0<16,16,2>UB {align1};
add (16) g65.0<1>W g94.0<16,16,1>W g65.0<16,16,2>UB {align1};
add (16) g66.0<1>W g87.0<16,16,1>W g66.0<16,16,2>UB {align1};
add (16) g67.0<1>W g95.0<16,16,1>W g67.0<16,16,2>UB {align1};
add (16) g68.0<1>W g88.0<16,16,1>W g68.0<16,16,2>UB {align1};
add (16) g69.0<1>W g96.0<16,16,1>W g69.0<16,16,2>UB {align1};
add (16) g70.0<1>W g89.0<16,16,1>W g70.0<16,16,2>UB {align1};
add (16) g71.0<1>W g97.0<16,16,1>W g71.0<16,16,2>UB {align1};
add (16) g72.0<1>W g90.0<16,16,1>W g72.0<16,16,2>UB {align1};
add (16) g73.0<1>W g98.0<16,16,1>W g73.0<16,16,2>UB {align1};

write_back:
mov (1) g31.8<1>UD 0x00F000FUD {align1};
mov.sat (16) g58.0<2>UB g58.0<16,16,1>W {align1};
mov.sat (16) g59.0<2>UB g59.0<16,16,1>W {align1};
mov.sat (16) g60.0<2>UB g60.0<16,16,1>W {align1};
mov.sat (16) g61.0<2>UB g61.0<16,16,1>W {align1};
mov.sat (16) g62.0<2>UB g62.0<16,16,1>W {align1};
mov.sat (16) g63.0<2>UB g63.0<16,16,1>W {align1};
mov.sat (16) g64.0<2>UB g64.0<16,16,1>W {align1};
mov.sat (16) g65.0<2>UB g65.0<16,16,1>W {align1};
mov.sat (16) g66.0<2>UB g66.0<16,16,1>W {align1};
mov.sat (16) g67.0<2>UB g67.0<16,16,1>W {align1};
mov.sat (16) g68.0<2>UB g68.0<16,16,1>W {align1};
mov.sat (16) g69.0<2>UB g69.0<16,16,1>W {align1};
mov.sat (16) g70.0<2>UB g70.0<16,16,1>W {align1};
mov.sat (16) g71.0<2>UB g71.0<16,16,1>W {align1};
mov.sat (16) g72.0<2>UB g72.0<16,16,1>W {align1};
mov.sat (16) g73.0<2>UB g73.0<16,16,1>W {align1};

mov (16) m1.0<1>UB  g58.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g59.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB  g60.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g61.0<16,16,2>UB {align1};
mov (16) m3.0<1>UB  g62.0<16,16,2>UB {align1};
mov (16) m3.16<1>UB g63.0<16,16,2>UB {align1};
mov (16) m4.0<1>UB  g64.0<16,16,2>UB {align1};
mov (16) m4.16<1>UB g65.0<16,16,2>UB {align1};
mov (16) m5.0<1>UB  g66.0<16,16,2>UB {align1};
mov (16) m5.16<1>UB g67.0<16,16,2>UB {align1};
mov (16) m6.0<1>UB  g68.0<16,16,2>UB {align1};
mov (16) m6.16<1>UB g69.0<16,16,2>UB {align1};
mov (16) m7.0<1>UB  g70.0<16,16,2>UB {align1};
mov (16) m7.16<1>UB g71.0<16,16,2>UB {align1};
mov (16) m8.0<1>UB  g72.0<16,16,2>UB {align1};
mov (16) m8.16<1>UB g73.0<16,16,2>UB {align1};
send (16) 0 acc0<1>UW g31<8,8,1>UW write(0,0,2,0) mlen 9 rlen 0 {align1};

//U
mov (1) g31.8<1>UD 0x0070007UD  { align1 };
shr (2) g31.0<1>UD g31.0<2,2,1>UD 1D {align1};
add (16) g74.0<1>W g99.0<16,16,1>W g74.0<16,16,1>UW {align1};
add (16) g75.0<1>W g100.0<16,16,1>W g75.0<16,16,1>UW {align1};
add (16) g76.0<1>W g101.0<16,16,1>W g76.0<16,16,1>UW {align1};
add (16) g77.0<1>W g102.0<16,16,1>W g77.0<16,16,1>UW {align1};
mov.sat (16) g74.0<2>UB g74.0<16,16,1>W {align1};
mov.sat (16) g75.0<2>UB g75.0<16,16,1>W {align1};
mov.sat (16) g76.0<2>UB g76.0<16,16,1>W {align1};
mov.sat (16) g77.0<2>UB g77.0<16,16,1>W {align1};

mov (16) m1.0<1>UB g74.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g75.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB g76.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g77.0<16,16,2>UB {align1};
send (16) 0 acc0<1>UW g31<8,8,1>UW write(1, 0, 2, 0) mlen 3 rlen 0 { align1 };

//V
add (16) g78.0<1>UW g103.0<16,16,1>W g78.0<16,16,1>UW {align1};
add (16) g79.0<1>UW g104.0<16,16,1>W g79.0<16,16,1>UW {align1};
add (16) g80.0<1>UW g105.0<16,16,1>W g80.0<16,16,1>UW {align1};
add (16) g81.0<1>UW g106.0<16,16,1>W g81.0<16,16,1>UW {align1};
mov.sat (16) g78.0<2>UB g78.0<16,16,1>W {align1};
mov.sat (16) g79.0<2>UB g79.0<16,16,1>W {align1};
mov.sat (16) g80.0<2>UB g80.0<16,16,1>W {align1};
mov.sat (16) g81.0<2>UB g81.0<16,16,1>W {align1};

mov (16) m1.0<1>UB g78.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g79.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB g80.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g81.0<16,16,2>UB {align1};
send (16) 0 acc0<1>UW g31<8,8,1>UW write(2, 0, 2, 0) mlen 3 rlen 0 { align1 };

send (16) 0 acc0<1>UW g0<8,8,1>UW
        thread_spawner(0, 0, 0) mlen 1 rlen 0 { align1 EOT};