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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 library is free software; you can redistribute it and/or

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

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

  8.  * version 2 of the License, or (at your option) any later version.

  9.  *

  10.  * This library is distributed in the hope that it will be useful,

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

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

  13.  * Lesser General Public License for more details.

  14.  *

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

  16.  * License along with this library; if not, write to the Free Software

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

  18.  */

  19. 

  20. #include "../avcodec.h"

  21. #include "../snow.h"

  22. #include "mmx.h"

  23. 

  24. static void always_inline snow_interleave_line_header(int * i, int width, DWTELEM * low, DWTELEM * high){

  25.     (*i) = (width) - 2;

  26. 

  27.     if (width & 1){

  28.         low[(*i)+1] = low[((*i)+1)>>1];

  29.         (*i)--;

  30.     }

  31. }

  32. 

  33. static void always_inline snow_horizontal_compose_lift_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){

  34.     for(; i<w; i++){

  35.         dst[i] = src[i] - ((mul * (ref[i] + ref[i + 1]) + add) >> shift);

  36.     }

  37. 

  38.     if((width^lift_high)&1){

  39.         dst[w] = src[w] - ((mul * 2 * ref[w] + add) >> shift);

  40.     }

  41. }

  42. 

  43. static void always_inline snow_horizontal_compose_liftS_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w){

  44.         for(; i<w; i++){

  45.             dst[i] = src[i] - (((-(ref[i] + ref[(i+1)])+W_BO) - 4 * src[i]) >> W_BS);

  46.         }

  47. 

  48.         if(width&1){

  49.             dst[w] = src[w] - (((-2 * ref[w] + W_BO) - 4 * src[w]) >> W_BS);

  50.         }

  51. }

  52. 

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

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

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

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

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

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

  59.     const int w_r= w2 - 1;

  60.     int i;

  61. 

  62.     { // Lift 0

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

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

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

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

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

  68. 

  69.         i = 0;

  70.         asm volatile(

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

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

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

  74.         ::);

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

  76.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  100.                 : "memory"

  101.             );

  102.         }

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

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

  105.     }

  106. 

  107.     { // Lift 1

  108.         DWTELEM * const dst = b+w2;

  109. 

  110.         i = 0;

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

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

  113.         }

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

  115.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

  129.                 : "memory"

  130.             );

  131.         }

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

  133.     }

  134. 

  135.     { // Lift 2

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

  137.         DWTELEM b_0 = b[0];

  138. 

  139.         i = 0;

  140.         asm volatile(

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

  142.         ::);

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

  144.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  170.                 : "memory"

  171.             );

  172.         }

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

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

  175.     }

  176. 

  177.     { // Lift 3

  178.         DWTELEM * const src = b+w2;

  179. 

  180.         i = 0;

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

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

  183.         }

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

  185.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  205.                  : "memory"

  206.                );

  207.         }

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

  209.     }

  210. 

  211.     {

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

  213. 

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

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

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

  217.         }

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

  219.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  245.                  : "memory"

  246.                );

  247.         }

  248.     }

  249. }

  250. 

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

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

  253.     DWTELEM temp[width >> 1];

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

  255.     const int w_r= w2 - 1;

  256.     int i;

  257. 

  258.     { // Lift 0

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

  260. 

  261.         i = 1;

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

  263.         asm volatile(

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

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

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

  267.            ::);

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

  269.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  291.                  : "memory"

  292.                );

  293.         }

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

  295.     }

  296. 

  297.     { // Lift 1

  298.         DWTELEM * const dst = b+w2;

  299. 

  300.         i = 0;

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

  302.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

  314.                  : "memory"

  315.                );

  316.         }

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

  318.     }

  319. 

  320.     { // Lift 2

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

  322. 

  323.         i = 1;

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

  325.         asm volatile(

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

  327.            ::);

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

  329.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  353.                  : "memory"

  354.                );

  355.         }

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

  357.     }

  358. 

  359.     { // Lift 3

  360.         DWTELEM * const src = b+w2;

  361.         i = 0;

  362. 

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

  364.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  384.                  : "memory"

  385.                );

  386.         }

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

  388.     }

  389. 

  390.     {

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

  392. 

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

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

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

  396.         }

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

  398.             asm volatile(

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  424.                  : "memory"

  425.                );

  426.         }

  427.     }

  428. }

  429. 

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

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

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

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

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

  435. 

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

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

  438. 

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

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

  441. 

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

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

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

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

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

  447. 

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

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

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

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

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

  453. 

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

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

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

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

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

  459. 

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

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

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

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

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

  465. 

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

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

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

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

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

  471. 

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

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

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

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

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

  477. 

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

  479.     long i = width;

  480. 

  481.     while(i & 0xF)

  482.     {

  483.         i--;

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

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

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

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

  488.     }

  489. 

  490.          asm volatile (

  491.         "jmp 2f                                      \n\t"

  492.         "1:                                          \n\t"

  493. 

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

  495.         "mov %4, %%"REG_b"                           \n\t"

  496. 

  497.         snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")

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

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

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

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

  502. 

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

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

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

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

  507. 

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

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

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

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

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

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

  514.         snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")

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

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

  517.         snow_vertical_compose_sse2_store(REG_b,"xmm0","xmm2","xmm4","xmm6")

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

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

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

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

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

  523. 

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

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

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

  527.         "mov %1, %%"REG_b"                           \n\t"

  528. 

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

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

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

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

  533.         snow_vertical_compose_sse2_add(REG_b,"xmm0","xmm2","xmm4","xmm6")

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

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

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

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

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

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

  540. 

  541.         "2:                                          \n\t"

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

  543.         "jge 1b                                      \n\t"

  544.         :"+d"(i)

  545.         :

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

  547.         "%"REG_a"","%"REG_b"","%"REG_c"");

  548. }

  549. 

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

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

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

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

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

  555. 

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

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

  558. 

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

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

  561. 

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

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

  564. 

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

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

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

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

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

  570. 

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

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

  573. 

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

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

  576. 

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

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

  579. 

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

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

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

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

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

  585. 

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

  587.     long i = width;

  588.     while(i & 0x7)

  589.     {

  590.         i--;

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

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

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

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

  595.     }

  596. 

  597.     asm volatile(

  598.         "jmp 2f                                      \n\t"

  599.         "1:                                          \n\t"

  600. 

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

  602.         "mov %4, %%"REG_b"                           \n\t"

  603. 

  604.         snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")

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

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

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

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

  609. 

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

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

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

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

  614. 

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

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

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

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

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

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

  621.         snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")

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

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

  624.         snow_vertical_compose_mmx_store(REG_b,"mm0","mm2","mm4","mm6")

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

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

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

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

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

  630. 

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

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

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

  634.         "mov %1, %%"REG_b"                           \n\t"

  635. 

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

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

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

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

  640.         snow_vertical_compose_mmx_add(REG_b,"mm0","mm2","mm4","mm6")

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

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

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

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

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

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

  647. 

  648.         "2:                                          \n\t"

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

  650.         "jge 1b                                      \n\t"

  651.         :"+d"(i)

  652.         :

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

  654.         "%"REG_a"","%"REG_b"","%"REG_c"");

  655. }