i965_drv_video/shaders/mpeg2/vld/lib.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 in UB format
           g3~g4:non intra IQ matrix in UB format
           g5~g20:IDCT table
   g32~g55:DCT data before IQ
   g56~g79:DCT data after IQ
   g83~g106: IDCT data after idct
   g82:    thread payload backup
   g125:   ip before jump
*/
include(`iq_non_intra.g4i')

define(`ROW_SHIFT', `11UD') //define for idct
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,the start of DCT data)

//Y0
and.nz (1) null g82.8<1,1,1>UW 0x800UW {align1};
(f0) jmpi do_idct_y0;

mov (8) g83.0<1>UW 0UW {align1}; 
mov (8) g84.0<1>UW 0UW {align1}; 
mov (8) g85.0<1>UW 0UW {align1}; 
mov (8) g86.0<1>UW 0UW {align1}; 
mov (8) g87.0<1>UW 0UW {align1}; 
mov (8) g88.0<1>UW 0UW {align1}; 
mov (8) g89.0<1>UW 0UW {align1}; 
mov (8) g90.0<1>UW 0UW {align1}; 
add (1) a0.0<1>UD a0.0<1,1,1>UD 0x00800080UD {align1};
jmpi block_y1;
do_idct_y0:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (8) g83.0<1>W g32.0<16,8,2>W {align1};
mov (8) g84.0<1>W g33.0<16,8,2>W {align1};
mov (8) g85.0<1>W g34.0<16,8,2>W {align1};
mov (8) g86.0<1>W g35.0<16,8,2>W {align1};
mov (8) g87.0<1>W g36.0<16,8,2>W {align1};
mov (8) g88.0<1>W g37.0<16,8,2>W {align1};
mov (8) g89.0<1>W g38.0<16,8,2>W {align1};
mov (8) g90.0<1>W g39.0<16,8,2>W {align1};

//Y1
block_y1:
and.nz (1) null g82.8<1,1,1>UW 0x400UW {align1};
(f0) jmpi do_idct_y1;
mov (8) g83.16<1>UW 0UW {align1}; 
mov (8) g84.16<1>UW 0UW {align1}; 
mov (8) g85.16<1>UW 0UW {align1}; 
mov (8) g86.16<1>UW 0UW {align1}; 
mov (8) g87.16<1>UW 0UW {align1}; 
mov (8) g88.16<1>UW 0UW {align1}; 
mov (8) g89.16<1>UW 0UW {align1}; 
mov (8) g90.16<1>UW 0UW {align1}; 
add (1) a0.0<1>UD a0.0<1,1,1>UD 0x00800080UD {align1};
jmpi block_y2;
do_idct_y1:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (8) g83.16<1>W g32.0<16,8,2>W {align1};
mov (8) g84.16<1>W g33.0<16,8,2>W {align1};
mov (8) g85.16<1>W g34.0<16,8,2>W {align1};
mov (8) g86.16<1>W g35.0<16,8,2>W {align1};
mov (8) g87.16<1>W g36.0<16,8,2>W {align1};
mov (8) g88.16<1>W g37.0<16,8,2>W {align1};
mov (8) g89.16<1>W g38.0<16,8,2>W {align1};
mov (8) g90.16<1>W g39.0<16,8,2>W {align1};

//Y2
block_y2:
and.nz (1) null g82.8<1,1,1>UW 0x200UW {align1};
(f0) jmpi do_idct_y2;
mov (8) g91.0<1>UW 0UW {align1}; 
mov (8) g92.0<1>UW 0UW {align1}; 
mov (8) g93.0<1>UW 0UW {align1}; 
mov (8) g94.0<1>UW 0UW {align1}; 
mov (8) g95.0<1>UW 0UW {align1}; 
mov (8) g96.0<1>UW 0UW {align1}; 
mov (8) g97.0<1>UW 0UW {align1}; 
mov (8) g98.0<1>UW 0UW {align1}; 
add (1) a0.0<1>UD a0.0<1,1,1>UD 0x00800080UD {align1};
jmpi block_y3;
do_idct_y2:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (8) g91.0<1>W g32.0<16,8,2>W {align1};
mov (8) g92.0<1>W g33.0<16,8,2>W {align1};
mov (8) g93.0<1>W g34.0<16,8,2>W {align1};
mov (8) g94.0<1>W g35.0<16,8,2>W {align1};
mov (8) g95.0<1>W g36.0<16,8,2>W {align1};
mov (8) g96.0<1>W g37.0<16,8,2>W {align1};
mov (8) g97.0<1>W g38.0<16,8,2>W {align1};
mov (8) g98.0<1>W g39.0<16,8,2>W {align1};

//Y3
block_y3:
and.nz (1) null g82.8<1,1,1>UW 0x100UW {align1};
(f0) jmpi do_idct_y3;
mov (8) g91.16<1>UW 0UW {align1}; 
mov (8) g92.16<1>UW 0UW {align1}; 
mov (8) g93.16<1>UW 0UW {align1}; 
mov (8) g94.16<1>UW 0UW {align1}; 
mov (8) g95.16<1>UW 0UW {align1}; 
mov (8) g96.16<1>UW 0UW {align1}; 
mov (8) g97.16<1>UW 0UW {align1}; 
mov (8) g98.16<1>UW 0UW {align1}; 
add (1) a0.0<1>UD a0.0<1,1,1>UD 0x00800080UD {align1};
jmpi block_u;
do_idct_y3:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (8) g91.16<1>W g32.0<16,8,2>W {align1};
mov (8) g92.16<1>W g33.0<16,8,2>W {align1};
mov (8) g93.16<1>W g34.0<16,8,2>W {align1};
mov (8) g94.16<1>W g35.0<16,8,2>W {align1};
mov (8) g95.16<1>W g36.0<16,8,2>W {align1};
mov (8) g96.16<1>W g37.0<16,8,2>W {align1};
mov (8) g97.16<1>W g38.0<16,8,2>W {align1};
mov (8) g98.16<1>W g39.0<16,8,2>W {align1};

//U
block_u:
and.nz (1) null g82.8<1,1,1>UW 0x80UW {align1};
(f0) jmpi do_idct_u;
mov (16) g99.0<1>UW 0UW {align1}; 
mov (16) g100.0<1>UW 0UW {align1}; 
mov (16) g101.0<1>UW 0UW {align1}; 
mov (16) g102.0<1>UW 0UW {align1}; 
add (1) a0.0<1>UD a0.0<1,1,1>UD 0x00800080UD {align1};
jmpi block_v;
do_idct_u:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (16) g99.0<1>W g32.0<16,8,2>W {align1};
mov (16) g100.0<1>W g34.0<16,8,2>W {align1};
mov (16) g101.0<1>W g36.0<16,8,2>W {align1};
mov (16) g102.0<1>W g38.0<16,8,2>W {align1};

//V
block_v:
and.nz (1) null g82.8<1,1,1>UW 0x40UW {align1};
(f0) jmpi do_idct_v;
mov (16) g103.0<1>UW 0UW {align1}; 
mov (16) g104.0<1>UW 0UW {align1}; 
mov (16) g105.0<1>UW 0UW {align1}; 
mov (16) g106.0<1>UW 0UW {align1};  
jmpi block_end;
do_idct_v:
mov (1) g125.0<1>UD ip {align1};
jmpi IDCT_START;
mov (16) g103.0<1>W g32.0<16,8,2>W {align1};
mov (16) g104.0<1>W g34.0<16,8,2>W {align1};
mov (16) g105.0<1>W g36.0<16,8,2>W {align1};
mov (16) g106.0<1>W g38.0<16,8,2>W {align1};
block_end:

add (1) ip g126.8<1,1,1>UD 0x20UD {align1};            //jump back
include(`do_iq_non_intra.g4i')
include(`idct.g4i')