i965_drv_video/shaders/mpeg2/vld/frame_intra.g4a

/*
 * Copyright © 2009 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 tab
   g31:    read and write message descriptor
   g32~g55:DCT data
   g58~g81:reference data
   g82:    thread payload 
   g83~g106:IDCT data 
*/

mov (8) g82.0<1>UD g31.0<8,8,1>UD {align1};
mov (2) g31.0<1>UD g82.12<2,2,1>UW {align1};
//shl (1) g31.4<1>UD g31.4<1,1,1>UD 1UD {align1};

include(`iq_intra.g4i')

//defined for idct
define(`ROW_SHIFT', `11UD') 
define(`ROW_ADD', `0x400UD')          
define(`COL_SHIFT', `20UD') 
define(`COL_ADD', `0x80000UD')          

mov (1) a0.0<1>UD 0x06F006E0UD {align1};      //0x06F006E0UD+0x00200020UD=0x07100700UD (g56.0 and g56.16)

//Y0
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (8) g83.0<1>W g32.0<16,8,2>W 128UW {align1};
add (8) g84.0<1>W g33.0<16,8,2>W 128UW {align1};
add (8) g85.0<1>W g34.0<16,8,2>W 128UW {align1};
add (8) g86.0<1>W g35.0<16,8,2>W 128UW {align1};
add (8) g87.0<1>W g36.0<16,8,2>W 128UW {align1};
add (8) g88.0<1>W g37.0<16,8,2>W 128UW {align1};
add (8) g89.0<1>W g38.0<16,8,2>W 128UW {align1};
add (8) g90.0<1>W g39.0<16,8,2>W 128UW {align1};

//Y1
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (8) g83.16<1>W g32.0<16,8,2>W 128UW {align1};
add (8) g84.16<1>W g33.0<16,8,2>W 128UW {align1};
add (8) g85.16<1>W g34.0<16,8,2>W 128UW {align1};
add (8) g86.16<1>W g35.0<16,8,2>W 128UW {align1};
add (8) g87.16<1>W g36.0<16,8,2>W 128UW {align1};
add (8) g88.16<1>W g37.0<16,8,2>W 128UW {align1};
add (8) g89.16<1>W g38.0<16,8,2>W 128UW {align1};
add (8) g90.16<1>W g39.0<16,8,2>W 128UW {align1};

//Y2
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (8) g91.0<1>W g32.0<16,8,2>W 128UW {align1};
add (8) g92.0<1>W g33.0<16,8,2>W 128UW {align1};
add (8) g93.0<1>W g34.0<16,8,2>W 128UW {align1};
add (8) g94.0<1>W g35.0<16,8,2>W 128UW {align1};
add (8) g95.0<1>W g36.0<16,8,2>W 128UW {align1};
add (8) g96.0<1>W g37.0<16,8,2>W 128UW {align1};
add (8) g97.0<1>W g38.0<16,8,2>W 128UW {align1};
add (8) g98.0<1>W g39.0<16,8,2>W 128UW {align1};

//Y3
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (8) g91.16<1>W g32.0<16,8,2>W 128UW {align1};
add (8) g92.16<1>W g33.0<16,8,2>W 128UW {align1};
add (8) g93.16<1>W g34.0<16,8,2>W 128UW {align1};
add (8) g94.16<1>W g35.0<16,8,2>W 128UW {align1};
add (8) g95.16<1>W g36.0<16,8,2>W 128UW {align1};
add (8) g96.16<1>W g37.0<16,8,2>W 128UW {align1};
add (8) g97.16<1>W g38.0<16,8,2>W 128UW {align1};
add (8) g98.16<1>W g39.0<16,8,2>W 128UW {align1};

//U
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (16) g99.0<1>W g32.0<16,8,2>W 128UW {align1};
add (16) g100.0<1>W g34.0<16,8,2>W 128UW {align1};
add (16) g101.0<1>W g36.0<16,8,2>W 128UW {align1};
add (16) g102.0<1>W g38.0<16,8,2>W 128UW {align1};

//V
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
add (16) g103.0<1>W g32.0<16,8,2>W 128UW {align1};
add (16) g104.0<1>W g34.0<16,8,2>W 128UW {align1};
add (16) g105.0<1>W g36.0<16,8,2>W 128UW {align1};
add (16) g106.0<1>W g38.0<16,8,2>W 128UW {align1};

//send msg
mov (1) g31.8<1>UD 0x00F000FUD {align1};
mov.sat (16) g83.0<2>UB g83.0<16,16,1>W {align1};
mov.sat (16) g84.0<2>UB g84.0<16,16,1>W {align1};
mov.sat (16) g85.0<2>UB g85.0<16,16,1>W {align1};
mov.sat (16) g86.0<2>UB g86.0<16,16,1>W {align1};
mov.sat (16) g87.0<2>UB g87.0<16,16,1>W {align1};
mov.sat (16) g88.0<2>UB g88.0<16,16,1>W {align1};
mov.sat (16) g89.0<2>UB g89.0<16,16,1>W {align1};
mov.sat (16) g90.0<2>UB g90.0<16,16,1>W {align1};
mov.sat (16) g91.0<2>UB g91.0<16,16,1>W {align1};
mov.sat (16) g92.0<2>UB g92.0<16,16,1>W {align1};
mov.sat (16) g93.0<2>UB g93.0<16,16,1>W {align1};
mov.sat (16) g94.0<2>UB g94.0<16,16,1>W {align1};
mov.sat (16) g95.0<2>UB g95.0<16,16,1>W {align1};
mov.sat (16) g96.0<2>UB g96.0<16,16,1>W {align1};
mov.sat (16) g97.0<2>UB g97.0<16,16,1>W {align1};
mov.sat (16) g98.0<2>UB g98.0<16,16,1>W {align1};

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

mov (16) m1.0<1>UB  g83.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g84.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB  g85.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g86.0<16,16,2>UB {align1};
mov (16) m3.0<1>UB  g87.0<16,16,2>UB {align1};
mov (16) m3.16<1>UB g88.0<16,16,2>UB {align1};
mov (16) m4.0<1>UB  g89.0<16,16,2>UB {align1};
mov (16) m4.16<1>UB g90.0<16,16,2>UB {align1};
mov (16) m5.0<1>UB  g91.0<16,16,2>UB {align1};
mov (16) m5.16<1>UB g92.0<16,16,2>UB {align1};
mov (16) m6.0<1>UB  g93.0<16,16,2>UB {align1};
mov (16) m6.16<1>UB g94.0<16,16,2>UB {align1};
mov (16) m7.0<1>UB  g95.0<16,16,2>UB {align1};
mov (16) m7.16<1>UB g96.0<16,16,2>UB {align1};
mov (16) m8.0<1>UB  g97.0<16,16,2>UB {align1};
mov (16) m8.16<1>UB g98.0<16,16,2>UB {align1};
jmpi write_back;

field_dct:
mov (16) m1.0<1>UB  g83.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g91.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB  g84.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g92.0<16,16,2>UB {align1};
mov (16) m3.0<1>UB  g85.0<16,16,2>UB {align1};
mov (16) m3.16<1>UB g93.0<16,16,2>UB {align1};
mov (16) m4.0<1>UB  g86.0<16,16,2>UB {align1};
mov (16) m4.16<1>UB g94.0<16,16,2>UB {align1};
mov (16) m5.0<1>UB  g87.0<16,16,2>UB {align1};
mov (16) m5.16<1>UB g95.0<16,16,2>UB {align1};
mov (16) m6.0<1>UB  g88.0<16,16,2>UB {align1};
mov (16) m6.16<1>UB g96.0<16,16,2>UB {align1};
mov (16) m7.0<1>UB  g89.0<16,16,2>UB {align1};
mov (16) m7.16<1>UB g97.0<16,16,2>UB {align1};
mov (16) m8.0<1>UB  g90.0<16,16,2>UB {align1};
mov (16) m8.16<1>UB g98.0<16,16,2>UB {align1};

write_back:
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 g82.12<2,2,1>UW 1D {align1};
mov.sat (16) g99.0<2>UB g99.0<16,16,1>W {align1};
mov.sat (16) g100.0<2>UB g100.0<16,16,1>W {align1};
mov.sat (16) g101.0<2>UB g101.0<16,16,1>W {align1};
mov.sat (16) g102.0<2>UB g102.0<16,16,1>W {align1};

mov (16) m1.0<1>UB  g99.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g100.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB  g101.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g102.0<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
mov.sat (16) g103.0<2>UB g103.0<16,16,1>W {align1};
mov.sat (16) g104.0<2>UB g104.0<16,16,1>W {align1};
mov.sat (16) g105.0<2>UB g105.0<16,16,1>W {align1};
mov.sat (16) g106.0<2>UB g106.0<16,16,1>W {align1};

mov (16) m1.0<1>UB  g103.0<16,16,2>UB {align1};
mov (16) m1.16<1>UB g104.0<16,16,2>UB {align1};
mov (16) m2.0<1>UB  g105.0<16,16,2>UB {align1};
mov (16) m2.16<1>UB g106.0<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 };

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

include(`do_iq_intra.g4i')
include(`idct.g4i')