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FFmpeg/libavcodec/i386/snowdsp_mmx.c

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  1. /*

  2.  * MMX and SSE2 optimized snow DSP utils

  3.  * Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. #include "../avcodec.h"

  23. #include "../snow.h"

  24. #include "x86_cpu.h"

  25. 

  26. void ff_snow_horizontal_compose97i_sse2(DWTELEM *b, int width){

  27.     const int w2= (width+1)>>1;

  28.     // SSE2 code runs faster with pointers aligned on a 32-byte boundary.

  29.     DWTELEM temp_buf[(width>>1) + 4];

  30.     DWTELEM * const temp = temp_buf + 4 - (((int)temp_buf & 0xF) >> 2);

  31.     const int w_l= (width>>1);

  32.     const int w_r= w2 - 1;

  33.     int i;

  34. 

  35.     { // Lift 0

  36.         DWTELEM * const ref = b + w2 - 1;

  37.         DWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice

  38.         // (the first time erroneously), we allow the SSE2 code to run an extra pass.

  39.         // The savings in code and time are well worth having to store this value and

  40.         // calculate b[0] correctly afterwards.

  41. 

  42.         i = 0;

  43.         asm volatile(

  44.             "pcmpeqd   %%xmm7, %%xmm7         \n\t"

  45.             "pslld        $31, %%xmm7         \n\t"

  46.             "psrld        $29, %%xmm7         \n\t"

  47.         ::);

  48.         for(; i<w_l-7; i+=8){

  49.             asm volatile(

  50.                 "movdqu   (%1), %%xmm1        \n\t"

  51.                 "movdqu 16(%1), %%xmm5        \n\t"

  52.                 "movdqu  4(%1), %%xmm2        \n\t"

  53.                 "movdqu 20(%1), %%xmm6        \n\t"

  54.                 "paddd  %%xmm1, %%xmm2        \n\t"

  55.                 "paddd  %%xmm5, %%xmm6        \n\t"

  56.                 "movdqa %%xmm2, %%xmm0        \n\t"

  57.                 "movdqa %%xmm6, %%xmm4        \n\t"

  58.                 "paddd  %%xmm2, %%xmm2        \n\t"

  59.                 "paddd  %%xmm6, %%xmm6        \n\t"

  60.                 "paddd  %%xmm0, %%xmm2        \n\t"

  61.                 "paddd  %%xmm4, %%xmm6        \n\t"

  62.                 "paddd  %%xmm7, %%xmm2        \n\t"

  63.                 "paddd  %%xmm7, %%xmm6        \n\t"

  64.                 "psrad      $3, %%xmm2        \n\t"

  65.                 "psrad      $3, %%xmm6        \n\t"

  66.                 "movdqa   (%0), %%xmm0        \n\t"

  67.                 "movdqa 16(%0), %%xmm4        \n\t"

  68.                 "psubd  %%xmm2, %%xmm0        \n\t"

  69.                 "psubd  %%xmm6, %%xmm4        \n\t"

  70.                 "movdqa %%xmm0, (%0)          \n\t"

  71.                 "movdqa %%xmm4, 16(%0)        \n\t"

  72.                 :: "r"(&b[i]), "r"(&ref[i])

  73.                 : "memory"

  74.             );

  75.         }

  76.         snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);

  77.         b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);

  78.     }

  79. 

  80.     { // Lift 1

  81.         DWTELEM * const dst = b+w2;

  82. 

  83.         i = 0;

  84.         for(; (((long)&dst[i]) & 0xF) && i<w_r; i++){

  85.             dst[i] = dst[i] - (b[i] + b[i + 1]);

  86.         }

  87.         for(; i<w_r-7; i+=8){

  88.             asm volatile(

  89.                 "movdqu   (%1), %%xmm1        \n\t"

  90.                 "movdqu 16(%1), %%xmm5        \n\t"

  91.                 "movdqu  4(%1), %%xmm2        \n\t"

  92.                 "movdqu 20(%1), %%xmm6        \n\t"

  93.                 "paddd  %%xmm1, %%xmm2        \n\t"

  94.                 "paddd  %%xmm5, %%xmm6        \n\t"

  95.                 "movdqa   (%0), %%xmm0        \n\t"

  96.                 "movdqa 16(%0), %%xmm4        \n\t"

  97.                 "psubd  %%xmm2, %%xmm0        \n\t"

  98.                 "psubd  %%xmm6, %%xmm4        \n\t"

  99.                 "movdqa %%xmm0, (%0)          \n\t"

  100.                 "movdqa %%xmm4, 16(%0)        \n\t"

  101.                 :: "r"(&dst[i]), "r"(&b[i])

  102.                 : "memory"

  103.             );

  104.         }

  105.         snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);

  106.     }

  107. 

  108.     { // Lift 2

  109.         DWTELEM * const ref = b+w2 - 1;

  110.         DWTELEM b_0 = b[0];

  111. 

  112.         i = 0;

  113.         asm volatile(

  114.             "pslld          $1, %%xmm7       \n\t" /* xmm7 already holds a '4' from 2 lifts ago. */

  115.         ::);

  116.         for(; i<w_l-7; i+=8){

  117.             asm volatile(

  118.                 "movdqu   (%1), %%xmm1        \n\t"

  119.                 "movdqu 16(%1), %%xmm5        \n\t"

  120.                 "movdqu  4(%1), %%xmm0        \n\t"

  121.                 "movdqu 20(%1), %%xmm4        \n\t"

  122.                 "paddd  %%xmm1, %%xmm0        \n\t"

  123.                 "paddd  %%xmm5, %%xmm4        \n\t"

  124.                 "movdqa %%xmm7, %%xmm1        \n\t"

  125.                 "movdqa %%xmm7, %%xmm5        \n\t"

  126.                 "psubd  %%xmm0, %%xmm1        \n\t"

  127.                 "psubd  %%xmm4, %%xmm5        \n\t"

  128.                 "movdqa   (%0), %%xmm0        \n\t"

  129.                 "movdqa 16(%0), %%xmm4        \n\t"

  130.                 "pslld      $2, %%xmm0        \n\t"

  131.                 "pslld      $2, %%xmm4        \n\t"

  132.                 "psubd  %%xmm0, %%xmm1        \n\t"

  133.                 "psubd  %%xmm4, %%xmm5        \n\t"

  134.                 "psrad      $4, %%xmm1        \n\t"

  135.                 "psrad      $4, %%xmm5        \n\t"

  136.                 "movdqa   (%0), %%xmm0        \n\t"

  137.                 "movdqa 16(%0), %%xmm4        \n\t"

  138.                 "psubd  %%xmm1, %%xmm0        \n\t"

  139.                 "psubd  %%xmm5, %%xmm4        \n\t"

  140.                 "movdqa %%xmm0, (%0)          \n\t"

  141.                 "movdqa %%xmm4, 16(%0)        \n\t"

  142.                 :: "r"(&b[i]), "r"(&ref[i])

  143.                 : "memory"

  144.             );

  145.         }

  146.         snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);

  147.         b[0] = b_0 - (((-2 * ref[1] + W_BO) - 4 * b_0) >> W_BS);

  148.     }

  149. 

  150.     { // Lift 3

  151.         DWTELEM * const src = b+w2;

  152. 

  153.         i = 0;

  154.         for(; (((long)&temp[i]) & 0xF) && i<w_r; i++){

  155.             temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);

  156.         }

  157.         for(; i<w_r-7; i+=8){

  158.             asm volatile(

  159.                 "movdqu  4(%1), %%xmm2        \n\t"

  160.                 "movdqu 20(%1), %%xmm6        \n\t"

  161.                 "paddd    (%1), %%xmm2        \n\t"

  162.                 "paddd  16(%1), %%xmm6        \n\t"

  163.                 "movdqa %%xmm2, %%xmm0        \n\t"

  164.                 "movdqa %%xmm6, %%xmm4        \n\t"

  165.                 "pslld      $2, %%xmm2        \n\t"

  166.                 "pslld      $2, %%xmm6        \n\t"

  167.                 "psubd  %%xmm2, %%xmm0        \n\t"

  168.                 "psubd  %%xmm6, %%xmm4        \n\t"

  169.                 "psrad      $1, %%xmm0        \n\t"

  170.                 "psrad      $1, %%xmm4        \n\t"

  171.                 "movdqu   (%0), %%xmm2        \n\t"

  172.                 "movdqu 16(%0), %%xmm6        \n\t"

  173.                 "psubd  %%xmm0, %%xmm2        \n\t"

  174.                 "psubd  %%xmm4, %%xmm6        \n\t"

  175.                 "movdqa %%xmm2, (%2)          \n\t"

  176.                 "movdqa %%xmm6, 16(%2)        \n\t"

  177.                 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])

  178.                  : "memory"

  179.                );

  180.         }

  181.         snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO, W_AS);

  182.     }

  183. 

  184.     {

  185.         snow_interleave_line_header(&i, width, b, temp);

  186. 

  187.         for (; (i & 0x1E) != 0x1E; i-=2){

  188.             b[i+1] = temp[i>>1];

  189.             b[i] = b[i>>1];

  190.         }

  191.         for (i-=30; i>=0; i-=32){

  192.             asm volatile(

  193.                 "movdqa      (%1), %%xmm0       \n\t"

  194.                 "movdqa    16(%1), %%xmm2       \n\t"

  195.                 "movdqa    32(%1), %%xmm4       \n\t"

  196.                 "movdqa    48(%1), %%xmm6       \n\t"

  197.                 "movdqa      (%1), %%xmm1       \n\t"

  198.                 "movdqa    16(%1), %%xmm3       \n\t"

  199.                 "movdqa    32(%1), %%xmm5       \n\t"

  200.                 "movdqa    48(%1), %%xmm7       \n\t"

  201.                 "punpckldq   (%2), %%xmm0       \n\t"

  202.                 "punpckldq 16(%2), %%xmm2       \n\t"

  203.                 "punpckldq 32(%2), %%xmm4       \n\t"

  204.                 "punpckldq 48(%2), %%xmm6       \n\t"

  205.                 "movdqa    %%xmm0, (%0)         \n\t"

  206.                 "movdqa    %%xmm2, 32(%0)       \n\t"

  207.                 "movdqa    %%xmm4, 64(%0)       \n\t"

  208.                 "movdqa    %%xmm6, 96(%0)       \n\t"

  209.                 "punpckhdq   (%2), %%xmm1       \n\t"

  210.                 "punpckhdq 16(%2), %%xmm3       \n\t"

  211.                 "punpckhdq 32(%2), %%xmm5       \n\t"

  212.                 "punpckhdq 48(%2), %%xmm7       \n\t"

  213.                 "movdqa    %%xmm1, 16(%0)       \n\t"

  214.                 "movdqa    %%xmm3, 48(%0)       \n\t"

  215.                 "movdqa    %%xmm5, 80(%0)       \n\t"

  216.                 "movdqa    %%xmm7, 112(%0)      \n\t"

  217.                 :: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])

  218.                  : "memory"

  219.                );

  220.         }

  221.     }

  222. }

  223. 

  224. void ff_snow_horizontal_compose97i_mmx(DWTELEM *b, int width){

  225.     const int w2= (width+1)>>1;

  226.     DWTELEM temp[width >> 1];

  227.     const int w_l= (width>>1);

  228.     const int w_r= w2 - 1;

  229.     int i;

  230. 

  231.     { // Lift 0

  232.         DWTELEM * const ref = b + w2 - 1;

  233. 

  234.         i = 1;

  235.         b[0] = b[0] - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);

  236.         asm volatile(

  237.             "pcmpeqd    %%mm7, %%mm7         \n\t"

  238.             "pslld        $31, %%mm7         \n\t"

  239.             "psrld        $29, %%mm7         \n\t"

  240.            ::);

  241.         for(; i<w_l-3; i+=4){

  242.             asm volatile(

  243.                 "movq     (%1), %%mm2        \n\t"

  244.                 "movq    8(%1), %%mm6        \n\t"

  245.                 "paddd   4(%1), %%mm2        \n\t"

  246.                 "paddd  12(%1), %%mm6        \n\t"

  247.                 "movq    %%mm2, %%mm0        \n\t"

  248.                 "movq    %%mm6, %%mm4        \n\t"

  249.                 "paddd   %%mm2, %%mm2        \n\t"

  250.                 "paddd   %%mm6, %%mm6        \n\t"

  251.                 "paddd   %%mm0, %%mm2        \n\t"

  252.                 "paddd   %%mm4, %%mm6        \n\t"

  253.                 "paddd   %%mm7, %%mm2        \n\t"

  254.                 "paddd   %%mm7, %%mm6        \n\t"

  255.                 "psrad      $3, %%mm2        \n\t"

  256.                 "psrad      $3, %%mm6        \n\t"

  257.                 "movq     (%0), %%mm0        \n\t"

  258.                 "movq    8(%0), %%mm4        \n\t"

  259.                 "psubd   %%mm2, %%mm0        \n\t"

  260.                 "psubd   %%mm6, %%mm4        \n\t"

  261.                 "movq    %%mm0, (%0)         \n\t"

  262.                 "movq    %%mm4, 8(%0)        \n\t"

  263.                 :: "r"(&b[i]), "r"(&ref[i])

  264.                  : "memory"

  265.                );

  266.         }

  267.         snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);

  268.     }

  269. 

  270.     { // Lift 1

  271.         DWTELEM * const dst = b+w2;

  272. 

  273.         i = 0;

  274.         for(; i<w_r-3; i+=4){

  275.             asm volatile(

  276.                 "movq     (%1), %%mm2        \n\t"

  277.                 "movq    8(%1), %%mm6        \n\t"

  278.                 "paddd   4(%1), %%mm2        \n\t"

  279.                 "paddd  12(%1), %%mm6        \n\t"

  280.                 "movq     (%0), %%mm0        \n\t"

  281.                 "movq    8(%0), %%mm4        \n\t"

  282.                 "psubd   %%mm2, %%mm0        \n\t"

  283.                 "psubd   %%mm6, %%mm4        \n\t"

  284.                 "movq    %%mm0, (%0)         \n\t"

  285.                 "movq    %%mm4, 8(%0)        \n\t"

  286.                 :: "r"(&dst[i]), "r"(&b[i])

  287.                  : "memory"

  288.                );

  289.         }

  290.         snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);

  291.     }

  292. 

  293.     { // Lift 2

  294.         DWTELEM * const ref = b+w2 - 1;

  295. 

  296.         i = 1;

  297.         b[0] = b[0] - (((-2 * ref[1] + W_BO) - 4 * b[0]) >> W_BS);

  298.         asm volatile(

  299.             "pslld          $1, %%mm7       \n\t" /* xmm7 already holds a '4' from 2 lifts ago. */

  300.            ::);

  301.         for(; i<w_l-3; i+=4){

  302.             asm volatile(

  303.                 "movq     (%1), %%mm0        \n\t"

  304.                 "movq    8(%1), %%mm4        \n\t"

  305.                 "paddd   4(%1), %%mm0        \n\t"

  306.                 "paddd  12(%1), %%mm4        \n\t"

  307.                 "movq    %%mm7, %%mm1        \n\t"

  308.                 "movq    %%mm7, %%mm5        \n\t"

  309.                 "psubd   %%mm0, %%mm1        \n\t"

  310.                 "psubd   %%mm4, %%mm5        \n\t"

  311.                 "movq     (%0), %%mm0        \n\t"

  312.                 "movq    8(%0), %%mm4        \n\t"

  313.                 "pslld      $2, %%mm0        \n\t"

  314.                 "pslld      $2, %%mm4        \n\t"

  315.                 "psubd   %%mm0, %%mm1        \n\t"

  316.                 "psubd   %%mm4, %%mm5        \n\t"

  317.                 "psrad      $4, %%mm1        \n\t"

  318.                 "psrad      $4, %%mm5        \n\t"

  319.                 "movq     (%0), %%mm0        \n\t"

  320.                 "movq    8(%0), %%mm4        \n\t"

  321.                 "psubd   %%mm1, %%mm0        \n\t"

  322.                 "psubd   %%mm5, %%mm4        \n\t"

  323.                 "movq    %%mm0, (%0)         \n\t"

  324.                 "movq    %%mm4, 8(%0)        \n\t"

  325.                 :: "r"(&b[i]), "r"(&ref[i])

  326.                  : "memory"

  327.                );

  328.         }

  329.         snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);

  330.     }

  331. 

  332.     { // Lift 3

  333.         DWTELEM * const src = b+w2;

  334.         i = 0;

  335. 

  336.         for(; i<w_r-3; i+=4){

  337.             asm volatile(

  338.                 "movq    4(%1), %%mm2        \n\t"

  339.                 "movq   12(%1), %%mm6        \n\t"

  340.                 "paddd    (%1), %%mm2        \n\t"

  341.                 "paddd   8(%1), %%mm6        \n\t"

  342.                 "movq    %%mm2, %%mm0        \n\t"

  343.                 "movq    %%mm6, %%mm4        \n\t"

  344.                 "pslld      $2, %%mm2        \n\t"

  345.                 "pslld      $2, %%mm6        \n\t"

  346.                 "psubd   %%mm2, %%mm0        \n\t"

  347.                 "psubd   %%mm6, %%mm4        \n\t"

  348.                 "psrad      $1, %%mm0        \n\t"

  349.                 "psrad      $1, %%mm4        \n\t"

  350.                 "movq     (%0), %%mm2        \n\t"

  351.                 "movq    8(%0), %%mm6        \n\t"

  352.                 "psubd   %%mm0, %%mm2        \n\t"

  353.                 "psubd   %%mm4, %%mm6        \n\t"

  354.                 "movq    %%mm2, (%2)         \n\t"

  355.                 "movq    %%mm6, 8(%2)        \n\t"

  356.                 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])

  357.                  : "memory"

  358.                );

  359.         }

  360.         snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO, W_AS);

  361.     }

  362. 

  363.     {

  364.         snow_interleave_line_header(&i, width, b, temp);

  365. 

  366.         for (; (i & 0xE) != 0xE; i-=2){

  367.             b[i+1] = temp[i>>1];

  368.             b[i] = b[i>>1];

  369.         }

  370.         for (i-=14; i>=0; i-=16){

  371.             asm volatile(

  372.                 "movq        (%1), %%mm0       \n\t"

  373.                 "movq       8(%1), %%mm2       \n\t"

  374.                 "movq      16(%1), %%mm4       \n\t"

  375.                 "movq      24(%1), %%mm6       \n\t"

  376.                 "movq        (%1), %%mm1       \n\t"

  377.                 "movq       8(%1), %%mm3       \n\t"

  378.                 "movq      16(%1), %%mm5       \n\t"

  379.                 "movq      24(%1), %%mm7       \n\t"

  380.                 "punpckldq   (%2), %%mm0       \n\t"

  381.                 "punpckldq  8(%2), %%mm2       \n\t"

  382.                 "punpckldq 16(%2), %%mm4       \n\t"

  383.                 "punpckldq 24(%2), %%mm6       \n\t"

  384.                 "movq       %%mm0, (%0)        \n\t"

  385.                 "movq       %%mm2, 16(%0)      \n\t"

  386.                 "movq       %%mm4, 32(%0)      \n\t"

  387.                 "movq       %%mm6, 48(%0)      \n\t"

  388.                 "punpckhdq   (%2), %%mm1       \n\t"

  389.                 "punpckhdq  8(%2), %%mm3       \n\t"

  390.                 "punpckhdq 16(%2), %%mm5       \n\t"

  391.                 "punpckhdq 24(%2), %%mm7       \n\t"

  392.                 "movq       %%mm1, 8(%0)       \n\t"

  393.                 "movq       %%mm3, 24(%0)      \n\t"

  394.                 "movq       %%mm5, 40(%0)      \n\t"

  395.                 "movq       %%mm7, 56(%0)      \n\t"

  396.                 :: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])

  397.                  : "memory"

  398.                );

  399.         }

  400.     }

  401. }

  402. 

  403. #define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\

  404.         ""op" (%%"r",%%"REG_d",4), %%"t0"      \n\t"\

  405.         ""op" 16(%%"r",%%"REG_d",4), %%"t1"    \n\t"\

  406.         ""op" 32(%%"r",%%"REG_d",4), %%"t2"    \n\t"\

  407.         ""op" 48(%%"r",%%"REG_d",4), %%"t3"    \n\t"

  408. 

  409. #define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\

  410.         snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)

  411. 

  412. #define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\

  413.         snow_vertical_compose_sse2_load_add("paddd",r,t0,t1,t2,t3)

  414. 

  415. #define snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)\

  416.         "psubd %%"s0", %%"t0" \n\t"\

  417.         "psubd %%"s1", %%"t1" \n\t"\

  418.         "psubd %%"s2", %%"t2" \n\t"\

  419.         "psubd %%"s3", %%"t3" \n\t"

  420. 

  421. #define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\

  422.         "movdqa %%"s0", (%%"w",%%"REG_d",4)      \n\t"\

  423.         "movdqa %%"s1", 16(%%"w",%%"REG_d",4)    \n\t"\

  424.         "movdqa %%"s2", 32(%%"w",%%"REG_d",4)    \n\t"\

  425.         "movdqa %%"s3", 48(%%"w",%%"REG_d",4)    \n\t"

  426. 

  427. #define snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)\

  428.         "psrad $"n", %%"t0" \n\t"\

  429.         "psrad $"n", %%"t1" \n\t"\

  430.         "psrad $"n", %%"t2" \n\t"\

  431.         "psrad $"n", %%"t3" \n\t"

  432. 

  433. #define snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\

  434.         "paddd %%"s0", %%"t0" \n\t"\

  435.         "paddd %%"s1", %%"t1" \n\t"\

  436.         "paddd %%"s2", %%"t2" \n\t"\

  437.         "paddd %%"s3", %%"t3" \n\t"

  438. 

  439. #define snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)\

  440.         "pslld $"n", %%"t0" \n\t"\

  441.         "pslld $"n", %%"t1" \n\t"\

  442.         "pslld $"n", %%"t2" \n\t"\

  443.         "pslld $"n", %%"t3" \n\t"

  444. 

  445. #define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\

  446.         "movdqa %%"s0", %%"t0" \n\t"\

  447.         "movdqa %%"s1", %%"t1" \n\t"\

  448.         "movdqa %%"s2", %%"t2" \n\t"\

  449.         "movdqa %%"s3", %%"t3" \n\t"

  450. 

  451. void ff_snow_vertical_compose97i_sse2(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){

  452.     long i = width;

  453. 

  454.     while(i & 0xF)

  455.     {

  456.         i--;

  457.         b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;

  458.         b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;

  459.         b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;

  460.         b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;

  461.     }

  462. 

  463.          asm volatile (

  464.         "jmp 2f                                      \n\t"

  465.         "1:                                          \n\t"

  466. 

  467.         "mov %6, %%"REG_a"                           \n\t"

  468.         "mov %4, %%"REG_S"                           \n\t"

  469. 

  470.         snow_vertical_compose_sse2_load(REG_S,"xmm0","xmm2","xmm4","xmm6")

  471.         snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")

  472.         snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")

  473.         snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\

  474.         snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

  475. 

  476.         "pcmpeqd %%xmm1, %%xmm1                      \n\t"

  477.         "pslld $31, %%xmm1                           \n\t"

  478.         "psrld $29, %%xmm1                           \n\t"

  479.         "mov %5, %%"REG_a"                           \n\t"

  480. 

  481.         snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")

  482.         snow_vertical_compose_sse2_sra("3","xmm0","xmm2","xmm4","xmm6")

  483.         snow_vertical_compose_sse2_load(REG_a,"xmm1","xmm3","xmm5","xmm7")

  484.         snow_vertical_compose_sse2_sub("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")

  485.         snow_vertical_compose_sse2_store(REG_a,"xmm1","xmm3","xmm5","xmm7")

  486.         "mov %3, %%"REG_c"                           \n\t"

  487.         snow_vertical_compose_sse2_load(REG_S,"xmm0","xmm2","xmm4","xmm6")

  488.         snow_vertical_compose_sse2_add(REG_c,"xmm1","xmm3","xmm5","xmm7")

  489.         snow_vertical_compose_sse2_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

  490.         snow_vertical_compose_sse2_store(REG_S,"xmm0","xmm2","xmm4","xmm6")

  491.         "mov %2, %%"REG_a"                           \n\t"

  492.         snow_vertical_compose_sse2_load(REG_c,"xmm1","xmm3","xmm5","xmm7")

  493.         snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")

  494.         snow_vertical_compose_sse2_sll("2","xmm1","xmm3","xmm5","xmm7")\

  495.         snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

  496. 

  497.         "pcmpeqd %%xmm1, %%xmm1                      \n\t"

  498.         "pslld $31, %%xmm1                           \n\t"

  499.         "psrld $28, %%xmm1                           \n\t"

  500.         "mov %1, %%"REG_S"                           \n\t"

  501. 

  502.         snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")

  503.         snow_vertical_compose_sse2_sra("4","xmm0","xmm2","xmm4","xmm6")

  504.         snow_vertical_compose_sse2_add(REG_c,"xmm0","xmm2","xmm4","xmm6")

  505.         snow_vertical_compose_sse2_store(REG_c,"xmm0","xmm2","xmm4","xmm6")

  506.         snow_vertical_compose_sse2_add(REG_S,"xmm0","xmm2","xmm4","xmm6")

  507.         snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")

  508.         snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\

  509.         snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

  510.         snow_vertical_compose_sse2_sra("1","xmm0","xmm2","xmm4","xmm6")

  511.         snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")

  512.         snow_vertical_compose_sse2_store(REG_a,"xmm0","xmm2","xmm4","xmm6")

  513. 

  514.         "2:                                          \n\t"

  515.         "sub $16, %%"REG_d"                          \n\t"

  516.         "jge 1b                                      \n\t"

  517.         :"+d"(i)

  518.         :

  519.         "m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5):

  520.         "%"REG_a"","%"REG_S"","%"REG_c"");

  521. }

  522. 

  523. #define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\

  524.         ""op" (%%"r",%%"REG_d",4), %%"t0"   \n\t"\

  525.         ""op" 8(%%"r",%%"REG_d",4), %%"t1"  \n\t"\

  526.         ""op" 16(%%"r",%%"REG_d",4), %%"t2" \n\t"\

  527.         ""op" 24(%%"r",%%"REG_d",4), %%"t3" \n\t"

  528. 

  529. #define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\

  530.         snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)

  531. 

  532. #define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\

  533.         snow_vertical_compose_mmx_load_add("paddd",r,t0,t1,t2,t3)

  534. 

  535. #define snow_vertical_compose_mmx_sub(s0,s1,s2,s3,t0,t1,t2,t3)\

  536.         snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)

  537. 

  538. #define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\

  539.         "movq %%"s0", (%%"w",%%"REG_d",4)   \n\t"\

  540.         "movq %%"s1", 8(%%"w",%%"REG_d",4)  \n\t"\

  541.         "movq %%"s2", 16(%%"w",%%"REG_d",4) \n\t"\

  542.         "movq %%"s3", 24(%%"w",%%"REG_d",4) \n\t"

  543. 

  544. #define snow_vertical_compose_mmx_sra(n,t0,t1,t2,t3)\

  545.         snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)

  546. 

  547. #define snow_vertical_compose_mmx_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\

  548.         snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)

  549. 

  550. #define snow_vertical_compose_mmx_sll(n,t0,t1,t2,t3)\

  551.         snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)

  552. 

  553. #define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\

  554.         "movq %%"s0", %%"t0" \n\t"\

  555.         "movq %%"s1", %%"t1" \n\t"\

  556.         "movq %%"s2", %%"t2" \n\t"\

  557.         "movq %%"s3", %%"t3" \n\t"

  558. 

  559. void ff_snow_vertical_compose97i_mmx(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){

  560.     long i = width;

  561.     while(i & 0x7)

  562.     {

  563.         i--;

  564.         b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;

  565.         b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;

  566.         b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;

  567.         b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;

  568.     }

  569. 

  570.     asm volatile(

  571.         "jmp 2f                                      \n\t"

  572.         "1:                                          \n\t"

  573. 

  574.         "mov %6, %%"REG_a"                           \n\t"

  575.         "mov %4, %%"REG_S"                           \n\t"

  576. 

  577.         snow_vertical_compose_mmx_load(REG_S,"mm0","mm2","mm4","mm6")

  578.         snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")

  579.         snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")

  580.         snow_vertical_compose_mmx_sll("1","mm0","mm2","mm4","mm6")

  581.         snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

  582. 

  583.         "pcmpeqd %%mm1, %%mm1                        \n\t"

  584.         "pslld $31, %%mm1                            \n\t"

  585.         "psrld $29, %%mm1                            \n\t"

  586.         "mov %5, %%"REG_a"                           \n\t"

  587. 

  588.         snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")

  589.         snow_vertical_compose_mmx_sra("3","mm0","mm2","mm4","mm6")

  590.         snow_vertical_compose_mmx_load(REG_a,"mm1","mm3","mm5","mm7")

  591.         snow_vertical_compose_mmx_sub("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")

  592.         snow_vertical_compose_mmx_store(REG_a,"mm1","mm3","mm5","mm7")

  593.         "mov %3, %%"REG_c"                           \n\t"

  594.         snow_vertical_compose_mmx_load(REG_S,"mm0","mm2","mm4","mm6")

  595.         snow_vertical_compose_mmx_add(REG_c,"mm1","mm3","mm5","mm7")

  596.         snow_vertical_compose_mmx_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

  597.         snow_vertical_compose_mmx_store(REG_S,"mm0","mm2","mm4","mm6")

  598.         "mov %2, %%"REG_a"                           \n\t"

  599.         snow_vertical_compose_mmx_load(REG_c,"mm1","mm3","mm5","mm7")

  600.         snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")

  601.         snow_vertical_compose_mmx_sll("2","mm1","mm3","mm5","mm7")

  602.         snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

  603. 

  604.         "pcmpeqd %%mm1, %%mm1                        \n\t"

  605.         "pslld $31, %%mm1                            \n\t"

  606.         "psrld $28, %%mm1                            \n\t"

  607.         "mov %1, %%"REG_S"                           \n\t"

  608. 

  609.         snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")

  610.         snow_vertical_compose_mmx_sra("4","mm0","mm2","mm4","mm6")

  611.         snow_vertical_compose_mmx_add(REG_c,"mm0","mm2","mm4","mm6")

  612.         snow_vertical_compose_mmx_store(REG_c,"mm0","mm2","mm4","mm6")

  613.         snow_vertical_compose_mmx_add(REG_S,"mm0","mm2","mm4","mm6")

  614.         snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")

  615.         snow_vertical_compose_mmx_sll("1","mm0","mm2","mm4","mm6")

  616.         snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

  617.         snow_vertical_compose_mmx_sra("1","mm0","mm2","mm4","mm6")

  618.         snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")

  619.         snow_vertical_compose_mmx_store(REG_a,"mm0","mm2","mm4","mm6")

  620. 

  621.         "2:                                          \n\t"

  622.         "sub $8, %%"REG_d"                           \n\t"

  623.         "jge 1b                                      \n\t"

  624.         :"+d"(i)

  625.         :

  626.         "m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5):

  627.         "%"REG_a"","%"REG_S"","%"REG_c"");

  628. }

  629. 

  630. #define snow_inner_add_yblock_sse2_header \

  631.     DWTELEM * * dst_array = sb->line + src_y;\

  632.     long tmp;\

  633.     asm volatile(\

  634.              "mov  %7, %%"REG_c"             \n\t"\

  635.              "mov  %6, %2                    \n\t"\

  636.              "mov  %4, %%"REG_S"             \n\t"\

  637.              "pxor %%xmm7, %%xmm7            \n\t" /* 0 */\

  638.              "pcmpeqd %%xmm3, %%xmm3         \n\t"\

  639.              "pslld $31, %%xmm3              \n\t"\

  640.              "psrld $24, %%xmm3              \n\t" /* FRAC_BITS >> 1 */\

  641.              "1:                             \n\t"\

  642.              "mov %1, %%"REG_D"              \n\t"\

  643.              "mov (%%"REG_D"), %%"REG_D"     \n\t"\

  644.              "add %3, %%"REG_D"              \n\t"

  645. 

  646. #define snow_inner_add_yblock_sse2_start_8(out_reg1, out_reg2, ptr_offset, s_offset)\

  647.              "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\

  648.              "movq (%%"REG_d"), %%"out_reg1" \n\t"\

  649.              "movq (%%"REG_d", %%"REG_c"), %%"out_reg2" \n\t"\

  650.              "punpcklbw %%xmm7, %%"out_reg1" \n\t"\

  651.              "punpcklbw %%xmm7, %%"out_reg2" \n\t"\

  652.              "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\

  653.              "movq "s_offset"+16(%%"REG_S"), %%xmm4 \n\t"\

  654.              "punpcklbw %%xmm7, %%xmm0       \n\t"\

  655.              "punpcklbw %%xmm7, %%xmm4       \n\t"\

  656.              "pmullw %%xmm0, %%"out_reg1"    \n\t"\

  657.              "pmullw %%xmm4, %%"out_reg2"    \n\t"

  658. 

  659. #define snow_inner_add_yblock_sse2_start_16(out_reg1, out_reg2, ptr_offset, s_offset)\

  660.              "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\

  661.              "movq (%%"REG_d"), %%"out_reg1" \n\t"\

  662.              "movq 8(%%"REG_d"), %%"out_reg2" \n\t"\

  663.              "punpcklbw %%xmm7, %%"out_reg1" \n\t"\

  664.              "punpcklbw %%xmm7, %%"out_reg2" \n\t"\

  665.              "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\

  666.              "movq "s_offset"+8(%%"REG_S"), %%xmm4 \n\t"\

  667.              "punpcklbw %%xmm7, %%xmm0       \n\t"\

  668.              "punpcklbw %%xmm7, %%xmm4       \n\t"\

  669.              "pmullw %%xmm0, %%"out_reg1"    \n\t"\

  670.              "pmullw %%xmm4, %%"out_reg2"    \n\t"

  671. 

  672. #define snow_inner_add_yblock_sse2_accum_8(ptr_offset, s_offset) \

  673.              snow_inner_add_yblock_sse2_start_8("xmm2", "xmm6", ptr_offset, s_offset)\

  674.              "paddusw %%xmm2, %%xmm1         \n\t"\

  675.              "paddusw %%xmm6, %%xmm5         \n\t"

  676. 

  677. #define snow_inner_add_yblock_sse2_accum_16(ptr_offset, s_offset) \

  678.              snow_inner_add_yblock_sse2_start_16("xmm2", "xmm6", ptr_offset, s_offset)\

  679.              "paddusw %%xmm2, %%xmm1         \n\t"\

  680.              "paddusw %%xmm6, %%xmm5         \n\t"

  681. 

  682. #define snow_inner_add_yblock_sse2_end_common1\

  683.              "add $32, %%"REG_S"             \n\t"\

  684.              "add %%"REG_c", %0              \n\t"\

  685.              "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\

  686.              "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\

  687.              "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\

  688.              "add %%"REG_c", (%%"REG_a")     \n\t"

  689. 

  690. #define snow_inner_add_yblock_sse2_end_common2\

  691.              "jnz 1b                         \n\t"\

  692.              :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\

  693.              :\

  694.              "rm"((long)(src_x<<2)),"m"(obmc),"a"(block),"m"((long)b_h),"m"((long)src_stride):\

  695.              "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");

  696. 

  697. #define snow_inner_add_yblock_sse2_end_8\

  698.              "sal $1, %%"REG_c"              \n\t"\

  699.              "add $"PTR_SIZE"*2, %1          \n\t"\

  700.              snow_inner_add_yblock_sse2_end_common1\

  701.              "sar $1, %%"REG_c"              \n\t"\

  702.              "sub $2, %2                     \n\t"\

  703.              snow_inner_add_yblock_sse2_end_common2

  704. 

  705. #define snow_inner_add_yblock_sse2_end_16\

  706.              "add $"PTR_SIZE"*1, %1          \n\t"\

  707.              snow_inner_add_yblock_sse2_end_common1\

  708.              "dec %2                         \n\t"\

  709.              snow_inner_add_yblock_sse2_end_common2

  710. 

  711. static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,

  712.                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  713. snow_inner_add_yblock_sse2_header

  714. snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")

  715. snow_inner_add_yblock_sse2_accum_8("2", "8")

  716. snow_inner_add_yblock_sse2_accum_8("1", "128")

  717. snow_inner_add_yblock_sse2_accum_8("0", "136")

  718. 

  719.              "mov %0, %%"REG_d"              \n\t"

  720.              "movdqa (%%"REG_D"), %%xmm0     \n\t"

  721.              "movdqa %%xmm1, %%xmm2          \n\t"

  722. 

  723.              "punpckhwd %%xmm7, %%xmm1       \n\t"

  724.              "punpcklwd %%xmm7, %%xmm2       \n\t"

  725.              "paddd %%xmm2, %%xmm0           \n\t"

  726.              "movdqa 16(%%"REG_D"), %%xmm2   \n\t"

  727.              "paddd %%xmm1, %%xmm2           \n\t"

  728.              "paddd %%xmm3, %%xmm0           \n\t"

  729.              "paddd %%xmm3, %%xmm2           \n\t"

  730. 

  731.              "mov %1, %%"REG_D"              \n\t"

  732.              "mov "PTR_SIZE"(%%"REG_D"), %%"REG_D";\n\t"

  733.              "add %3, %%"REG_D"              \n\t"

  734. 

  735.              "movdqa (%%"REG_D"), %%xmm4     \n\t"

  736.              "movdqa %%xmm5, %%xmm6          \n\t"

  737.              "punpckhwd %%xmm7, %%xmm5       \n\t"

  738.              "punpcklwd %%xmm7, %%xmm6       \n\t"

  739.              "paddd %%xmm6, %%xmm4           \n\t"

  740.              "movdqa 16(%%"REG_D"), %%xmm6   \n\t"

  741.              "paddd %%xmm5, %%xmm6           \n\t"

  742.              "paddd %%xmm3, %%xmm4           \n\t"

  743.              "paddd %%xmm3, %%xmm6           \n\t"

  744. 

  745.              "psrad $8, %%xmm0               \n\t" /* FRAC_BITS. */

  746.              "psrad $8, %%xmm2               \n\t" /* FRAC_BITS. */

  747.              "packssdw %%xmm2, %%xmm0        \n\t"

  748.              "packuswb %%xmm7, %%xmm0        \n\t"

  749.              "movq %%xmm0, (%%"REG_d")       \n\t"

  750. 

  751.              "psrad $8, %%xmm4               \n\t" /* FRAC_BITS. */

  752.              "psrad $8, %%xmm6               \n\t" /* FRAC_BITS. */

  753.              "packssdw %%xmm6, %%xmm4        \n\t"

  754.              "packuswb %%xmm7, %%xmm4        \n\t"

  755.              "movq %%xmm4, (%%"REG_d",%%"REG_c");\n\t"

  756. snow_inner_add_yblock_sse2_end_8

  757. }

  758. 

  759. static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,

  760.                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  761. snow_inner_add_yblock_sse2_header

  762. snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")

  763. snow_inner_add_yblock_sse2_accum_16("2", "16")

  764. snow_inner_add_yblock_sse2_accum_16("1", "512")

  765. snow_inner_add_yblock_sse2_accum_16("0", "528")

  766. 

  767.              "mov %0, %%"REG_d"              \n\t"

  768.              "movdqa %%xmm1, %%xmm0          \n\t"

  769.              "movdqa %%xmm5, %%xmm4          \n\t"

  770.              "punpcklwd %%xmm7, %%xmm0       \n\t"

  771.              "paddd (%%"REG_D"), %%xmm0      \n\t"

  772.              "punpckhwd %%xmm7, %%xmm1       \n\t"

  773.              "paddd 16(%%"REG_D"), %%xmm1    \n\t"

  774.              "punpcklwd %%xmm7, %%xmm4       \n\t"

  775.              "paddd 32(%%"REG_D"), %%xmm4    \n\t"

  776.              "punpckhwd %%xmm7, %%xmm5       \n\t"

  777.              "paddd 48(%%"REG_D"), %%xmm5    \n\t"

  778.              "paddd %%xmm3, %%xmm0           \n\t"

  779.              "paddd %%xmm3, %%xmm1           \n\t"

  780.              "paddd %%xmm3, %%xmm4           \n\t"

  781.              "paddd %%xmm3, %%xmm5           \n\t"

  782.              "psrad $8, %%xmm0               \n\t" /* FRAC_BITS. */

  783.              "psrad $8, %%xmm1               \n\t" /* FRAC_BITS. */

  784.              "psrad $8, %%xmm4               \n\t" /* FRAC_BITS. */

  785.              "psrad $8, %%xmm5               \n\t" /* FRAC_BITS. */

  786. 

  787.              "packssdw %%xmm1, %%xmm0        \n\t"

  788.              "packssdw %%xmm5, %%xmm4        \n\t"

  789.              "packuswb %%xmm4, %%xmm0        \n\t"

  790. 

  791.              "movdqu %%xmm0, (%%"REG_d")       \n\t"

  792. 

  793. snow_inner_add_yblock_sse2_end_16

  794. }

  795. 

  796. #define snow_inner_add_yblock_mmx_header \

  797.     DWTELEM * * dst_array = sb->line + src_y;\

  798.     long tmp;\

  799.     asm volatile(\

  800.              "mov  %7, %%"REG_c"             \n\t"\

  801.              "mov  %6, %2                    \n\t"\

  802.              "mov  %4, %%"REG_S"             \n\t"\

  803.              "pxor %%mm7, %%mm7              \n\t" /* 0 */\

  804.              "pcmpeqd %%mm3, %%mm3           \n\t"\

  805.              "pslld $31, %%mm3               \n\t"\

  806.              "psrld $24, %%mm3               \n\t" /* FRAC_BITS >> 1 */\

  807.              "1:                             \n\t"\

  808.              "mov %1, %%"REG_D"              \n\t"\

  809.              "mov (%%"REG_D"), %%"REG_D"     \n\t"\

  810.              "add %3, %%"REG_D"              \n\t"

  811. 

  812. #define snow_inner_add_yblock_mmx_start(out_reg1, out_reg2, ptr_offset, s_offset, d_offset)\

  813.              "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\

  814.              "movd "d_offset"(%%"REG_d"), %%"out_reg1" \n\t"\

  815.              "movd "d_offset"+4(%%"REG_d"), %%"out_reg2" \n\t"\

  816.              "punpcklbw %%mm7, %%"out_reg1" \n\t"\

  817.              "punpcklbw %%mm7, %%"out_reg2" \n\t"\

  818.              "movd "s_offset"(%%"REG_S"), %%mm0 \n\t"\

  819.              "movd "s_offset"+4(%%"REG_S"), %%mm4 \n\t"\

  820.              "punpcklbw %%mm7, %%mm0       \n\t"\

  821.              "punpcklbw %%mm7, %%mm4       \n\t"\

  822.              "pmullw %%mm0, %%"out_reg1"    \n\t"\

  823.              "pmullw %%mm4, %%"out_reg2"    \n\t"

  824. 

  825. #define snow_inner_add_yblock_mmx_accum(ptr_offset, s_offset, d_offset) \

  826.              snow_inner_add_yblock_mmx_start("mm2", "mm6", ptr_offset, s_offset, d_offset)\

  827.              "paddusw %%mm2, %%mm1         \n\t"\

  828.              "paddusw %%mm6, %%mm5         \n\t"

  829. 

  830. #define snow_inner_add_yblock_mmx_mix(read_offset, write_offset)\

  831.              "mov %0, %%"REG_d"              \n\t"\

  832.              "movq %%mm1, %%mm0              \n\t"\

  833.              "movq %%mm5, %%mm4              \n\t"\

  834.              "punpcklwd %%mm7, %%mm0         \n\t"\

  835.              "paddd "read_offset"(%%"REG_D"), %%mm0 \n\t"\

  836.              "punpckhwd %%mm7, %%mm1         \n\t"\

  837.              "paddd "read_offset"+8(%%"REG_D"), %%mm1 \n\t"\

  838.              "punpcklwd %%mm7, %%mm4         \n\t"\

  839.              "paddd "read_offset"+16(%%"REG_D"), %%mm4 \n\t"\

  840.              "punpckhwd %%mm7, %%mm5         \n\t"\

  841.              "paddd "read_offset"+24(%%"REG_D"), %%mm5 \n\t"\

  842.              "paddd %%mm3, %%mm0             \n\t"\

  843.              "paddd %%mm3, %%mm1             \n\t"\

  844.              "paddd %%mm3, %%mm4             \n\t"\

  845.              "paddd %%mm3, %%mm5             \n\t"\

  846.              "psrad $8, %%mm0                \n\t"\

  847.              "psrad $8, %%mm1                \n\t"\

  848.              "psrad $8, %%mm4                \n\t"\

  849.              "psrad $8, %%mm5                \n\t"\

  850. \

  851.              "packssdw %%mm1, %%mm0          \n\t"\

  852.              "packssdw %%mm5, %%mm4          \n\t"\

  853.              "packuswb %%mm4, %%mm0          \n\t"\

  854.              "movq %%mm0, "write_offset"(%%"REG_d") \n\t"

  855. 

  856. #define snow_inner_add_yblock_mmx_end(s_step)\

  857.              "add $"s_step", %%"REG_S"             \n\t"\

  858.              "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\

  859.              "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\

  860.              "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\

  861.              "add %%"REG_c", (%%"REG_a")     \n\t"\

  862.              "add $"PTR_SIZE"*1, %1          \n\t"\

  863.              "add %%"REG_c", %0              \n\t"\

  864.              "dec %2                         \n\t"\

  865.              "jnz 1b                         \n\t"\

  866.              :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\

  867.              :\

  868.              "rm"((long)(src_x<<2)),"m"(obmc),"a"(block),"m"((long)b_h),"m"((long)src_stride):\

  869.              "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");

  870. 

  871. static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,

  872.                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  873. snow_inner_add_yblock_mmx_header

  874. snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")

  875. snow_inner_add_yblock_mmx_accum("2", "8", "0")

  876. snow_inner_add_yblock_mmx_accum("1", "128", "0")

  877. snow_inner_add_yblock_mmx_accum("0", "136", "0")

  878. snow_inner_add_yblock_mmx_mix("0", "0")

  879. snow_inner_add_yblock_mmx_end("16")

  880. }

  881. 

  882. static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,

  883.                       int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  884. snow_inner_add_yblock_mmx_header

  885. snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")

  886. snow_inner_add_yblock_mmx_accum("2", "16", "0")

  887. snow_inner_add_yblock_mmx_accum("1", "512", "0")

  888. snow_inner_add_yblock_mmx_accum("0", "528", "0")

  889. snow_inner_add_yblock_mmx_mix("0", "0")

  890. 

  891. snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "8", "8")

  892. snow_inner_add_yblock_mmx_accum("2", "24", "8")

  893. snow_inner_add_yblock_mmx_accum("1", "520", "8")

  894. snow_inner_add_yblock_mmx_accum("0", "536", "8")

  895. snow_inner_add_yblock_mmx_mix("32", "8")

  896. snow_inner_add_yblock_mmx_end("32")

  897. }

  898. 

  899. void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,

  900.                            int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  901. 

  902.     if (b_w == 16)

  903.         inner_add_yblock_bw_16_obmc_32_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  904.     else if (b_w == 8 && obmc_stride == 16) {

  905.         if (!(b_h & 1))

  906.             inner_add_yblock_bw_8_obmc_16_bh_even_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  907.         else

  908.             inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  909.     } else

  910.          ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  911. }

  912. 

  913. void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,

  914.                           int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){

  915.     if (b_w == 16)

  916.         inner_add_yblock_bw_16_obmc_32_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  917.     else if (b_w == 8 && obmc_stride == 16)

  918.         inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  919.     else

  920.         ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);

  921. }