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FFmpeg/libavcodec/x86/dsputilenc_mmx.c

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  1. /*

  2.  * MMX optimized DSP utils

  3.  * Copyright (c) 2000, 2001 Fabrice Bellard

  4.  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>

  5.  *

  6.  * MMX optimization by Nick Kurshev <nickols_k@mail.ru>

  7.  *

  8.  * This file is part of Libav.

  9.  *

  10.  * Libav is free software; you can redistribute it and/or

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

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

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

  14.  *

  15.  * Libav is distributed in the hope that it will be useful,

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

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

  18.  * Lesser General Public License for more details.

  19.  *

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

  21.  * License along with Libav; if not, write to the Free Software

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

  23.  */

  24. 

  25. #include "libavutil/attributes.h"

  26. #include "libavutil/cpu.h"

  27. #include "libavutil/x86/asm.h"

  28. #include "libavutil/x86/cpu.h"

  29. #include "libavcodec/dct.h"

  30. #include "libavcodec/dsputil.h"

  31. #include "libavcodec/mpegvideo.h"

  32. #include "libavcodec/mathops.h"

  33. #include "dsputil_x86.h"

  34. 

  35. void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size);

  36. void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, int line_size);

  37. void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2, int stride);

  38. int ff_pix_sum16_mmx(uint8_t * pix, int line_size);

  39. int ff_pix_norm1_mmx(uint8_t *pix, int line_size);

  40. 

  41. #if HAVE_INLINE_ASM

  42. 

  43. static int sse8_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {

  44.     int tmp;

  45.   __asm__ volatile (

  46.       "movl %4,%%ecx\n"

  47.       "shr $1,%%ecx\n"

  48.       "pxor %%mm0,%%mm0\n"      /* mm0 = 0 */

  49.       "pxor %%mm7,%%mm7\n"      /* mm7 holds the sum */

  50.       "1:\n"

  51.       "movq (%0),%%mm1\n"       /* mm1 = pix1[0][0-7] */

  52.       "movq (%1),%%mm2\n"       /* mm2 = pix2[0][0-7] */

  53.       "movq (%0,%3),%%mm3\n"    /* mm3 = pix1[1][0-7] */

  54.       "movq (%1,%3),%%mm4\n"    /* mm4 = pix2[1][0-7] */

  55. 

  56.       /* todo: mm1-mm2, mm3-mm4 */

  57.       /* algo: subtract mm1 from mm2 with saturation and vice versa */

  58.       /*       OR the results to get absolute difference */

  59.       "movq %%mm1,%%mm5\n"

  60.       "movq %%mm3,%%mm6\n"

  61.       "psubusb %%mm2,%%mm1\n"

  62.       "psubusb %%mm4,%%mm3\n"

  63.       "psubusb %%mm5,%%mm2\n"

  64.       "psubusb %%mm6,%%mm4\n"

  65. 

  66.       "por %%mm1,%%mm2\n"

  67.       "por %%mm3,%%mm4\n"

  68. 

  69.       /* now convert to 16-bit vectors so we can square them */

  70.       "movq %%mm2,%%mm1\n"

  71.       "movq %%mm4,%%mm3\n"

  72. 

  73.       "punpckhbw %%mm0,%%mm2\n"

  74.       "punpckhbw %%mm0,%%mm4\n"

  75.       "punpcklbw %%mm0,%%mm1\n" /* mm1 now spread over (mm1,mm2) */

  76.       "punpcklbw %%mm0,%%mm3\n" /* mm4 now spread over (mm3,mm4) */

  77. 

  78.       "pmaddwd %%mm2,%%mm2\n"

  79.       "pmaddwd %%mm4,%%mm4\n"

  80.       "pmaddwd %%mm1,%%mm1\n"

  81.       "pmaddwd %%mm3,%%mm3\n"

  82. 

  83.       "lea (%0,%3,2), %0\n"     /* pix1 += 2*line_size */

  84.       "lea (%1,%3,2), %1\n"     /* pix2 += 2*line_size */

  85. 

  86.       "paddd %%mm2,%%mm1\n"

  87.       "paddd %%mm4,%%mm3\n"

  88.       "paddd %%mm1,%%mm7\n"

  89.       "paddd %%mm3,%%mm7\n"

  90. 

  91.       "decl %%ecx\n"

  92.       "jnz 1b\n"

  93. 

  94.       "movq %%mm7,%%mm1\n"

  95.       "psrlq $32, %%mm7\n"      /* shift hi dword to lo */

  96.       "paddd %%mm7,%%mm1\n"

  97.       "movd %%mm1,%2\n"

  98.       : "+r" (pix1), "+r" (pix2), "=r"(tmp)

  99.       : "r" ((x86_reg)line_size) , "m" (h)

  100.       : "%ecx");

  101.     return tmp;

  102. }

  103. 

  104. static int sse16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {

  105.     int tmp;

  106.   __asm__ volatile (

  107.       "movl %4,%%ecx\n"

  108.       "pxor %%mm0,%%mm0\n"      /* mm0 = 0 */

  109.       "pxor %%mm7,%%mm7\n"      /* mm7 holds the sum */

  110.       "1:\n"

  111.       "movq (%0),%%mm1\n"       /* mm1 = pix1[0-7] */

  112.       "movq (%1),%%mm2\n"       /* mm2 = pix2[0-7] */

  113.       "movq 8(%0),%%mm3\n"      /* mm3 = pix1[8-15] */

  114.       "movq 8(%1),%%mm4\n"      /* mm4 = pix2[8-15] */

  115. 

  116.       /* todo: mm1-mm2, mm3-mm4 */

  117.       /* algo: subtract mm1 from mm2 with saturation and vice versa */

  118.       /*       OR the results to get absolute difference */

  119.       "movq %%mm1,%%mm5\n"

  120.       "movq %%mm3,%%mm6\n"

  121.       "psubusb %%mm2,%%mm1\n"

  122.       "psubusb %%mm4,%%mm3\n"

  123.       "psubusb %%mm5,%%mm2\n"

  124.       "psubusb %%mm6,%%mm4\n"

  125. 

  126.       "por %%mm1,%%mm2\n"

  127.       "por %%mm3,%%mm4\n"

  128. 

  129.       /* now convert to 16-bit vectors so we can square them */

  130.       "movq %%mm2,%%mm1\n"

  131.       "movq %%mm4,%%mm3\n"

  132. 

  133.       "punpckhbw %%mm0,%%mm2\n"

  134.       "punpckhbw %%mm0,%%mm4\n"

  135.       "punpcklbw %%mm0,%%mm1\n" /* mm1 now spread over (mm1,mm2) */

  136.       "punpcklbw %%mm0,%%mm3\n" /* mm4 now spread over (mm3,mm4) */

  137. 

  138.       "pmaddwd %%mm2,%%mm2\n"

  139.       "pmaddwd %%mm4,%%mm4\n"

  140.       "pmaddwd %%mm1,%%mm1\n"

  141.       "pmaddwd %%mm3,%%mm3\n"

  142. 

  143.       "add %3,%0\n"

  144.       "add %3,%1\n"

  145. 

  146.       "paddd %%mm2,%%mm1\n"

  147.       "paddd %%mm4,%%mm3\n"

  148.       "paddd %%mm1,%%mm7\n"

  149.       "paddd %%mm3,%%mm7\n"

  150. 

  151.       "decl %%ecx\n"

  152.       "jnz 1b\n"

  153. 

  154.       "movq %%mm7,%%mm1\n"

  155.       "psrlq $32, %%mm7\n"      /* shift hi dword to lo */

  156.       "paddd %%mm7,%%mm1\n"

  157.       "movd %%mm1,%2\n"

  158.       : "+r" (pix1), "+r" (pix2), "=r"(tmp)

  159.       : "r" ((x86_reg)line_size) , "m" (h)

  160.       : "%ecx");

  161.     return tmp;

  162. }

  163. 

  164. static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) {

  165.     int tmp;

  166.   __asm__ volatile (

  167.       "movl %3,%%ecx\n"

  168.       "pxor %%mm7,%%mm7\n"

  169.       "pxor %%mm6,%%mm6\n"

  170. 

  171.       "movq (%0),%%mm0\n"

  172.       "movq %%mm0, %%mm1\n"

  173.       "psllq $8, %%mm0\n"

  174.       "psrlq $8, %%mm1\n"

  175.       "psrlq $8, %%mm0\n"

  176.       "movq %%mm0, %%mm2\n"

  177.       "movq %%mm1, %%mm3\n"

  178.       "punpcklbw %%mm7,%%mm0\n"

  179.       "punpcklbw %%mm7,%%mm1\n"

  180.       "punpckhbw %%mm7,%%mm2\n"

  181.       "punpckhbw %%mm7,%%mm3\n"

  182.       "psubw %%mm1, %%mm0\n"

  183.       "psubw %%mm3, %%mm2\n"

  184. 

  185.       "add %2,%0\n"

  186. 

  187.       "movq (%0),%%mm4\n"

  188.       "movq %%mm4, %%mm1\n"

  189.       "psllq $8, %%mm4\n"

  190.       "psrlq $8, %%mm1\n"

  191.       "psrlq $8, %%mm4\n"

  192.       "movq %%mm4, %%mm5\n"

  193.       "movq %%mm1, %%mm3\n"

  194.       "punpcklbw %%mm7,%%mm4\n"

  195.       "punpcklbw %%mm7,%%mm1\n"

  196.       "punpckhbw %%mm7,%%mm5\n"

  197.       "punpckhbw %%mm7,%%mm3\n"

  198.       "psubw %%mm1, %%mm4\n"

  199.       "psubw %%mm3, %%mm5\n"

  200.       "psubw %%mm4, %%mm0\n"

  201.       "psubw %%mm5, %%mm2\n"

  202.       "pxor %%mm3, %%mm3\n"

  203.       "pxor %%mm1, %%mm1\n"

  204.       "pcmpgtw %%mm0, %%mm3\n\t"

  205.       "pcmpgtw %%mm2, %%mm1\n\t"

  206.       "pxor %%mm3, %%mm0\n"

  207.       "pxor %%mm1, %%mm2\n"

  208.       "psubw %%mm3, %%mm0\n"

  209.       "psubw %%mm1, %%mm2\n"

  210.       "paddw %%mm0, %%mm2\n"

  211.       "paddw %%mm2, %%mm6\n"

  212. 

  213.       "add %2,%0\n"

  214.       "1:\n"

  215. 

  216.       "movq (%0),%%mm0\n"

  217.       "movq %%mm0, %%mm1\n"

  218.       "psllq $8, %%mm0\n"

  219.       "psrlq $8, %%mm1\n"

  220.       "psrlq $8, %%mm0\n"

  221.       "movq %%mm0, %%mm2\n"

  222.       "movq %%mm1, %%mm3\n"

  223.       "punpcklbw %%mm7,%%mm0\n"

  224.       "punpcklbw %%mm7,%%mm1\n"

  225.       "punpckhbw %%mm7,%%mm2\n"

  226.       "punpckhbw %%mm7,%%mm3\n"

  227.       "psubw %%mm1, %%mm0\n"

  228.       "psubw %%mm3, %%mm2\n"

  229.       "psubw %%mm0, %%mm4\n"

  230.       "psubw %%mm2, %%mm5\n"

  231.       "pxor %%mm3, %%mm3\n"

  232.       "pxor %%mm1, %%mm1\n"

  233.       "pcmpgtw %%mm4, %%mm3\n\t"

  234.       "pcmpgtw %%mm5, %%mm1\n\t"

  235.       "pxor %%mm3, %%mm4\n"

  236.       "pxor %%mm1, %%mm5\n"

  237.       "psubw %%mm3, %%mm4\n"

  238.       "psubw %%mm1, %%mm5\n"

  239.       "paddw %%mm4, %%mm5\n"

  240.       "paddw %%mm5, %%mm6\n"

  241. 

  242.       "add %2,%0\n"

  243. 

  244.       "movq (%0),%%mm4\n"

  245.       "movq %%mm4, %%mm1\n"

  246.       "psllq $8, %%mm4\n"

  247.       "psrlq $8, %%mm1\n"

  248.       "psrlq $8, %%mm4\n"

  249.       "movq %%mm4, %%mm5\n"

  250.       "movq %%mm1, %%mm3\n"

  251.       "punpcklbw %%mm7,%%mm4\n"

  252.       "punpcklbw %%mm7,%%mm1\n"

  253.       "punpckhbw %%mm7,%%mm5\n"

  254.       "punpckhbw %%mm7,%%mm3\n"

  255.       "psubw %%mm1, %%mm4\n"

  256.       "psubw %%mm3, %%mm5\n"

  257.       "psubw %%mm4, %%mm0\n"

  258.       "psubw %%mm5, %%mm2\n"

  259.       "pxor %%mm3, %%mm3\n"

  260.       "pxor %%mm1, %%mm1\n"

  261.       "pcmpgtw %%mm0, %%mm3\n\t"

  262.       "pcmpgtw %%mm2, %%mm1\n\t"

  263.       "pxor %%mm3, %%mm0\n"

  264.       "pxor %%mm1, %%mm2\n"

  265.       "psubw %%mm3, %%mm0\n"

  266.       "psubw %%mm1, %%mm2\n"

  267.       "paddw %%mm0, %%mm2\n"

  268.       "paddw %%mm2, %%mm6\n"

  269. 

  270.       "add %2,%0\n"

  271.       "subl $2, %%ecx\n"

  272.       " jnz 1b\n"

  273. 

  274.       "movq %%mm6, %%mm0\n"

  275.       "punpcklwd %%mm7,%%mm0\n"

  276.       "punpckhwd %%mm7,%%mm6\n"

  277.       "paddd %%mm0, %%mm6\n"

  278. 

  279.       "movq %%mm6,%%mm0\n"

  280.       "psrlq $32, %%mm6\n"

  281.       "paddd %%mm6,%%mm0\n"

  282.       "movd %%mm0,%1\n"

  283.       : "+r" (pix1), "=r"(tmp)

  284.       : "r" ((x86_reg)line_size) , "g" (h-2)

  285.       : "%ecx");

  286.       return tmp;

  287. }

  288. 

  289. static int hf_noise16_mmx(uint8_t * pix1, int line_size, int h) {

  290.     int tmp;

  291.     uint8_t * pix= pix1;

  292.   __asm__ volatile (

  293.       "movl %3,%%ecx\n"

  294.       "pxor %%mm7,%%mm7\n"

  295.       "pxor %%mm6,%%mm6\n"

  296. 

  297.       "movq (%0),%%mm0\n"

  298.       "movq 1(%0),%%mm1\n"

  299.       "movq %%mm0, %%mm2\n"

  300.       "movq %%mm1, %%mm3\n"

  301.       "punpcklbw %%mm7,%%mm0\n"

  302.       "punpcklbw %%mm7,%%mm1\n"

  303.       "punpckhbw %%mm7,%%mm2\n"

  304.       "punpckhbw %%mm7,%%mm3\n"

  305.       "psubw %%mm1, %%mm0\n"

  306.       "psubw %%mm3, %%mm2\n"

  307. 

  308.       "add %2,%0\n"

  309. 

  310.       "movq (%0),%%mm4\n"

  311.       "movq 1(%0),%%mm1\n"

  312.       "movq %%mm4, %%mm5\n"

  313.       "movq %%mm1, %%mm3\n"

  314.       "punpcklbw %%mm7,%%mm4\n"

  315.       "punpcklbw %%mm7,%%mm1\n"

  316.       "punpckhbw %%mm7,%%mm5\n"

  317.       "punpckhbw %%mm7,%%mm3\n"

  318.       "psubw %%mm1, %%mm4\n"

  319.       "psubw %%mm3, %%mm5\n"

  320.       "psubw %%mm4, %%mm0\n"

  321.       "psubw %%mm5, %%mm2\n"

  322.       "pxor %%mm3, %%mm3\n"

  323.       "pxor %%mm1, %%mm1\n"

  324.       "pcmpgtw %%mm0, %%mm3\n\t"

  325.       "pcmpgtw %%mm2, %%mm1\n\t"

  326.       "pxor %%mm3, %%mm0\n"

  327.       "pxor %%mm1, %%mm2\n"

  328.       "psubw %%mm3, %%mm0\n"

  329.       "psubw %%mm1, %%mm2\n"

  330.       "paddw %%mm0, %%mm2\n"

  331.       "paddw %%mm2, %%mm6\n"

  332. 

  333.       "add %2,%0\n"

  334.       "1:\n"

  335. 

  336.       "movq (%0),%%mm0\n"

  337.       "movq 1(%0),%%mm1\n"

  338.       "movq %%mm0, %%mm2\n"

  339.       "movq %%mm1, %%mm3\n"

  340.       "punpcklbw %%mm7,%%mm0\n"

  341.       "punpcklbw %%mm7,%%mm1\n"

  342.       "punpckhbw %%mm7,%%mm2\n"

  343.       "punpckhbw %%mm7,%%mm3\n"

  344.       "psubw %%mm1, %%mm0\n"

  345.       "psubw %%mm3, %%mm2\n"

  346.       "psubw %%mm0, %%mm4\n"

  347.       "psubw %%mm2, %%mm5\n"

  348.       "pxor %%mm3, %%mm3\n"

  349.       "pxor %%mm1, %%mm1\n"

  350.       "pcmpgtw %%mm4, %%mm3\n\t"

  351.       "pcmpgtw %%mm5, %%mm1\n\t"

  352.       "pxor %%mm3, %%mm4\n"

  353.       "pxor %%mm1, %%mm5\n"

  354.       "psubw %%mm3, %%mm4\n"

  355.       "psubw %%mm1, %%mm5\n"

  356.       "paddw %%mm4, %%mm5\n"

  357.       "paddw %%mm5, %%mm6\n"

  358. 

  359.       "add %2,%0\n"

  360. 

  361.       "movq (%0),%%mm4\n"

  362.       "movq 1(%0),%%mm1\n"

  363.       "movq %%mm4, %%mm5\n"

  364.       "movq %%mm1, %%mm3\n"

  365.       "punpcklbw %%mm7,%%mm4\n"

  366.       "punpcklbw %%mm7,%%mm1\n"

  367.       "punpckhbw %%mm7,%%mm5\n"

  368.       "punpckhbw %%mm7,%%mm3\n"

  369.       "psubw %%mm1, %%mm4\n"

  370.       "psubw %%mm3, %%mm5\n"

  371.       "psubw %%mm4, %%mm0\n"

  372.       "psubw %%mm5, %%mm2\n"

  373.       "pxor %%mm3, %%mm3\n"

  374.       "pxor %%mm1, %%mm1\n"

  375.       "pcmpgtw %%mm0, %%mm3\n\t"

  376.       "pcmpgtw %%mm2, %%mm1\n\t"

  377.       "pxor %%mm3, %%mm0\n"

  378.       "pxor %%mm1, %%mm2\n"

  379.       "psubw %%mm3, %%mm0\n"

  380.       "psubw %%mm1, %%mm2\n"

  381.       "paddw %%mm0, %%mm2\n"

  382.       "paddw %%mm2, %%mm6\n"

  383. 

  384.       "add %2,%0\n"

  385.       "subl $2, %%ecx\n"

  386.       " jnz 1b\n"

  387. 

  388.       "movq %%mm6, %%mm0\n"

  389.       "punpcklwd %%mm7,%%mm0\n"

  390.       "punpckhwd %%mm7,%%mm6\n"

  391.       "paddd %%mm0, %%mm6\n"

  392. 

  393.       "movq %%mm6,%%mm0\n"

  394.       "psrlq $32, %%mm6\n"

  395.       "paddd %%mm6,%%mm0\n"

  396.       "movd %%mm0,%1\n"

  397.       : "+r" (pix1), "=r"(tmp)

  398.       : "r" ((x86_reg)line_size) , "g" (h-2)

  399.       : "%ecx");

  400.       return tmp + hf_noise8_mmx(pix+8, line_size, h);

  401. }

  402. 

  403. static int nsse16_mmx(void *p, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {

  404.     MpegEncContext *c = p;

  405.     int score1, score2;

  406. 

  407.     if(c) score1 = c->dsp.sse[0](c, pix1, pix2, line_size, h);

  408.     else  score1 = sse16_mmx(c, pix1, pix2, line_size, h);

  409.     score2= hf_noise16_mmx(pix1, line_size, h) - hf_noise16_mmx(pix2, line_size, h);

  410. 

  411.     if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;

  412.     else  return score1 + FFABS(score2)*8;

  413. }

  414. 

  415. static int nsse8_mmx(void *p, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {

  416.     MpegEncContext *c = p;

  417.     int score1= sse8_mmx(c, pix1, pix2, line_size, h);

  418.     int score2= hf_noise8_mmx(pix1, line_size, h) - hf_noise8_mmx(pix2, line_size, h);

  419. 

  420.     if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;

  421.     else  return score1 + FFABS(score2)*8;

  422. }

  423. 

  424. static int vsad_intra16_mmx(void *v, uint8_t * pix, uint8_t * dummy, int line_size, int h) {

  425.     int tmp;

  426. 

  427.     assert( (((int)pix) & 7) == 0);

  428.     assert((line_size &7) ==0);

  429. 

  430. #define SUM(in0, in1, out0, out1) \

  431.       "movq (%0), %%mm2\n"\

  432.       "movq 8(%0), %%mm3\n"\

  433.       "add %2,%0\n"\

  434.       "movq %%mm2, " #out0 "\n"\

  435.       "movq %%mm3, " #out1 "\n"\

  436.       "psubusb " #in0 ", %%mm2\n"\

  437.       "psubusb " #in1 ", %%mm3\n"\

  438.       "psubusb " #out0 ", " #in0 "\n"\

  439.       "psubusb " #out1 ", " #in1 "\n"\

  440.       "por %%mm2, " #in0 "\n"\

  441.       "por %%mm3, " #in1 "\n"\

  442.       "movq " #in0 ", %%mm2\n"\

  443.       "movq " #in1 ", %%mm3\n"\

  444.       "punpcklbw %%mm7, " #in0 "\n"\

  445.       "punpcklbw %%mm7, " #in1 "\n"\

  446.       "punpckhbw %%mm7, %%mm2\n"\

  447.       "punpckhbw %%mm7, %%mm3\n"\

  448.       "paddw " #in1 ", " #in0 "\n"\

  449.       "paddw %%mm3, %%mm2\n"\

  450.       "paddw %%mm2, " #in0 "\n"\

  451.       "paddw " #in0 ", %%mm6\n"

  452. 

  453. 

  454.   __asm__ volatile (

  455.       "movl %3,%%ecx\n"

  456.       "pxor %%mm6,%%mm6\n"

  457.       "pxor %%mm7,%%mm7\n"

  458.       "movq (%0),%%mm0\n"

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

  460.       "add %2,%0\n"

  461.       "jmp 2f\n"

  462.       "1:\n"

  463. 

  464.       SUM(%%mm4, %%mm5, %%mm0, %%mm1)

  465.       "2:\n"

  466.       SUM(%%mm0, %%mm1, %%mm4, %%mm5)

  467. 

  468.       "subl $2, %%ecx\n"

  469.       "jnz 1b\n"

  470. 

  471.       "movq %%mm6,%%mm0\n"

  472.       "psrlq $32, %%mm6\n"

  473.       "paddw %%mm6,%%mm0\n"

  474.       "movq %%mm0,%%mm6\n"

  475.       "psrlq $16, %%mm0\n"

  476.       "paddw %%mm6,%%mm0\n"

  477.       "movd %%mm0,%1\n"

  478.       : "+r" (pix), "=r"(tmp)

  479.       : "r" ((x86_reg)line_size) , "m" (h)

  480.       : "%ecx");

  481.     return tmp & 0xFFFF;

  482. }

  483. #undef SUM

  484. 

  485. static int vsad_intra16_mmxext(void *v, uint8_t *pix, uint8_t *dummy,

  486.                                int line_size, int h)

  487. {

  488.     int tmp;

  489. 

  490.     assert( (((int)pix) & 7) == 0);

  491.     assert((line_size &7) ==0);

  492. 

  493. #define SUM(in0, in1, out0, out1) \

  494.       "movq (%0), " #out0 "\n"\

  495.       "movq 8(%0), " #out1 "\n"\

  496.       "add %2,%0\n"\

  497.       "psadbw " #out0 ", " #in0 "\n"\

  498.       "psadbw " #out1 ", " #in1 "\n"\

  499.       "paddw " #in1 ", " #in0 "\n"\

  500.       "paddw " #in0 ", %%mm6\n"

  501. 

  502.   __asm__ volatile (

  503.       "movl %3,%%ecx\n"

  504.       "pxor %%mm6,%%mm6\n"

  505.       "pxor %%mm7,%%mm7\n"

  506.       "movq (%0),%%mm0\n"

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

  508.       "add %2,%0\n"

  509.       "jmp 2f\n"

  510.       "1:\n"

  511. 

  512.       SUM(%%mm4, %%mm5, %%mm0, %%mm1)

  513.       "2:\n"

  514.       SUM(%%mm0, %%mm1, %%mm4, %%mm5)

  515. 

  516.       "subl $2, %%ecx\n"

  517.       "jnz 1b\n"

  518. 

  519.       "movd %%mm6,%1\n"

  520.       : "+r" (pix), "=r"(tmp)

  521.       : "r" ((x86_reg)line_size) , "m" (h)

  522.       : "%ecx");

  523.     return tmp;

  524. }

  525. #undef SUM

  526. 

  527. static int vsad16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {

  528.     int tmp;

  529. 

  530.     assert( (((int)pix1) & 7) == 0);

  531.     assert( (((int)pix2) & 7) == 0);

  532.     assert((line_size &7) ==0);

  533. 

  534. #define SUM(in0, in1, out0, out1) \

  535.       "movq (%0),%%mm2\n"\

  536.       "movq (%1)," #out0 "\n"\

  537.       "movq 8(%0),%%mm3\n"\

  538.       "movq 8(%1)," #out1 "\n"\

  539.       "add %3,%0\n"\

  540.       "add %3,%1\n"\

  541.       "psubb " #out0 ", %%mm2\n"\

  542.       "psubb " #out1 ", %%mm3\n"\

  543.       "pxor %%mm7, %%mm2\n"\

  544.       "pxor %%mm7, %%mm3\n"\

  545.       "movq %%mm2, " #out0 "\n"\

  546.       "movq %%mm3, " #out1 "\n"\

  547.       "psubusb " #in0 ", %%mm2\n"\

  548.       "psubusb " #in1 ", %%mm3\n"\

  549.       "psubusb " #out0 ", " #in0 "\n"\

  550.       "psubusb " #out1 ", " #in1 "\n"\

  551.       "por %%mm2, " #in0 "\n"\

  552.       "por %%mm3, " #in1 "\n"\

  553.       "movq " #in0 ", %%mm2\n"\

  554.       "movq " #in1 ", %%mm3\n"\

  555.       "punpcklbw %%mm7, " #in0 "\n"\

  556.       "punpcklbw %%mm7, " #in1 "\n"\

  557.       "punpckhbw %%mm7, %%mm2\n"\

  558.       "punpckhbw %%mm7, %%mm3\n"\

  559.       "paddw " #in1 ", " #in0 "\n"\

  560.       "paddw %%mm3, %%mm2\n"\

  561.       "paddw %%mm2, " #in0 "\n"\

  562.       "paddw " #in0 ", %%mm6\n"

  563. 

  564. 

  565.   __asm__ volatile (

  566.       "movl %4,%%ecx\n"

  567.       "pxor %%mm6,%%mm6\n"

  568.       "pcmpeqw %%mm7,%%mm7\n"

  569.       "psllw $15, %%mm7\n"

  570.       "packsswb %%mm7, %%mm7\n"

  571.       "movq (%0),%%mm0\n"

  572.       "movq (%1),%%mm2\n"

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

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

  575.       "add %3,%0\n"

  576.       "add %3,%1\n"

  577.       "psubb %%mm2, %%mm0\n"

  578.       "psubb %%mm3, %%mm1\n"

  579.       "pxor %%mm7, %%mm0\n"

  580.       "pxor %%mm7, %%mm1\n"

  581.       "jmp 2f\n"

  582.       "1:\n"

  583. 

  584.       SUM(%%mm4, %%mm5, %%mm0, %%mm1)

  585.       "2:\n"

  586.       SUM(%%mm0, %%mm1, %%mm4, %%mm5)

  587. 

  588.       "subl $2, %%ecx\n"

  589.       "jnz 1b\n"

  590. 

  591.       "movq %%mm6,%%mm0\n"

  592.       "psrlq $32, %%mm6\n"

  593.       "paddw %%mm6,%%mm0\n"

  594.       "movq %%mm0,%%mm6\n"

  595.       "psrlq $16, %%mm0\n"

  596.       "paddw %%mm6,%%mm0\n"

  597.       "movd %%mm0,%2\n"

  598.       : "+r" (pix1), "+r" (pix2), "=r"(tmp)

  599.       : "r" ((x86_reg)line_size) , "m" (h)

  600.       : "%ecx");

  601.     return tmp & 0x7FFF;

  602. }

  603. #undef SUM

  604. 

  605. static int vsad16_mmxext(void *v, uint8_t *pix1, uint8_t *pix2,

  606.                          int line_size, int h)

  607. {

  608.     int tmp;

  609. 

  610.     assert( (((int)pix1) & 7) == 0);

  611.     assert( (((int)pix2) & 7) == 0);

  612.     assert((line_size &7) ==0);

  613. 

  614. #define SUM(in0, in1, out0, out1) \

  615.       "movq (%0)," #out0 "\n"\

  616.       "movq (%1),%%mm2\n"\

  617.       "movq 8(%0)," #out1 "\n"\

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

  619.       "add %3,%0\n"\

  620.       "add %3,%1\n"\

  621.       "psubb %%mm2, " #out0 "\n"\

  622.       "psubb %%mm3, " #out1 "\n"\

  623.       "pxor %%mm7, " #out0 "\n"\

  624.       "pxor %%mm7, " #out1 "\n"\

  625.       "psadbw " #out0 ", " #in0 "\n"\

  626.       "psadbw " #out1 ", " #in1 "\n"\

  627.       "paddw " #in1 ", " #in0 "\n"\

  628.       "paddw " #in0 ", %%mm6\n"

  629. 

  630.   __asm__ volatile (

  631.       "movl %4,%%ecx\n"

  632.       "pxor %%mm6,%%mm6\n"

  633.       "pcmpeqw %%mm7,%%mm7\n"

  634.       "psllw $15, %%mm7\n"

  635.       "packsswb %%mm7, %%mm7\n"

  636.       "movq (%0),%%mm0\n"

  637.       "movq (%1),%%mm2\n"

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

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

  640.       "add %3,%0\n"

  641.       "add %3,%1\n"

  642.       "psubb %%mm2, %%mm0\n"

  643.       "psubb %%mm3, %%mm1\n"

  644.       "pxor %%mm7, %%mm0\n"

  645.       "pxor %%mm7, %%mm1\n"

  646.       "jmp 2f\n"

  647.       "1:\n"

  648. 

  649.       SUM(%%mm4, %%mm5, %%mm0, %%mm1)

  650.       "2:\n"

  651.       SUM(%%mm0, %%mm1, %%mm4, %%mm5)

  652. 

  653.       "subl $2, %%ecx\n"

  654.       "jnz 1b\n"

  655. 

  656.       "movd %%mm6,%2\n"

  657.       : "+r" (pix1), "+r" (pix2), "=r"(tmp)

  658.       : "r" ((x86_reg)line_size) , "m" (h)

  659.       : "%ecx");

  660.     return tmp;

  661. }

  662. #undef SUM

  663. 

  664. static void diff_bytes_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){

  665.     x86_reg i=0;

  666.     __asm__ volatile(

  667.         "1:                             \n\t"

  668.         "movq  (%2, %0), %%mm0          \n\t"

  669.         "movq  (%1, %0), %%mm1          \n\t"

  670.         "psubb %%mm0, %%mm1             \n\t"

  671.         "movq %%mm1, (%3, %0)           \n\t"

  672.         "movq 8(%2, %0), %%mm0          \n\t"

  673.         "movq 8(%1, %0), %%mm1          \n\t"

  674.         "psubb %%mm0, %%mm1             \n\t"

  675.         "movq %%mm1, 8(%3, %0)          \n\t"

  676.         "add $16, %0                    \n\t"

  677.         "cmp %4, %0                     \n\t"

  678.         " jb 1b                         \n\t"

  679.         : "+r" (i)

  680.         : "r"(src1), "r"(src2), "r"(dst), "r"((x86_reg)w-15)

  681.     );

  682.     for(; i<w; i++)

  683.         dst[i+0] = src1[i+0]-src2[i+0];

  684. }

  685. 

  686. static void sub_hfyu_median_prediction_mmxext(uint8_t *dst, const uint8_t *src1,

  687.                                               const uint8_t *src2, int w,

  688.                                               int *left, int *left_top)

  689. {

  690.     x86_reg i=0;

  691.     uint8_t l, lt;

  692. 

  693.     __asm__ volatile(

  694.         "movq  (%1, %0), %%mm0          \n\t" // LT

  695.         "psllq $8, %%mm0                \n\t"

  696.         "1:                             \n\t"

  697.         "movq  (%1, %0), %%mm1          \n\t" // T

  698.         "movq  -1(%2, %0), %%mm2        \n\t" // L

  699.         "movq  (%2, %0), %%mm3          \n\t" // X

  700.         "movq %%mm2, %%mm4              \n\t" // L

  701.         "psubb %%mm0, %%mm2             \n\t"

  702.         "paddb %%mm1, %%mm2             \n\t" // L + T - LT

  703.         "movq %%mm4, %%mm5              \n\t" // L

  704.         "pmaxub %%mm1, %%mm4            \n\t" // max(T, L)

  705.         "pminub %%mm5, %%mm1            \n\t" // min(T, L)

  706.         "pminub %%mm2, %%mm4            \n\t"

  707.         "pmaxub %%mm1, %%mm4            \n\t"

  708.         "psubb %%mm4, %%mm3             \n\t" // dst - pred

  709.         "movq %%mm3, (%3, %0)           \n\t"

  710.         "add $8, %0                     \n\t"

  711.         "movq -1(%1, %0), %%mm0         \n\t" // LT

  712.         "cmp %4, %0                     \n\t"

  713.         " jb 1b                         \n\t"

  714.         : "+r" (i)

  715.         : "r"(src1), "r"(src2), "r"(dst), "r"((x86_reg)w)

  716.     );

  717. 

  718.     l= *left;

  719.     lt= *left_top;

  720. 

  721.     dst[0]= src2[0] - mid_pred(l, src1[0], (l + src1[0] - lt)&0xFF);

  722. 

  723.     *left_top= src1[w-1];

  724.     *left    = src2[w-1];

  725. }

  726. 

  727. #define MMABS_MMX(a,z)\

  728.     "pxor " #z ", " #z "              \n\t"\

  729.     "pcmpgtw " #a ", " #z "           \n\t"\

  730.     "pxor " #z ", " #a "              \n\t"\

  731.     "psubw " #z ", " #a "             \n\t"

  732. 

  733. #define MMABS_MMXEXT(a, z)                 \

  734.     "pxor " #z ", " #z "              \n\t"\

  735.     "psubw " #a ", " #z "             \n\t"\

  736.     "pmaxsw " #z ", " #a "            \n\t"

  737. 

  738. #define MMABS_SSSE3(a,z)\

  739.     "pabsw " #a ", " #a "             \n\t"

  740. 

  741. #define MMABS_SUM(a,z, sum)\

  742.     MMABS(a,z)\

  743.     "paddusw " #a ", " #sum "         \n\t"

  744. 

  745. /* FIXME: HSUM_* saturates at 64k, while an 8x8 hadamard or dct block can get up to

  746.  * about 100k on extreme inputs. But that's very unlikely to occur in natural video,

  747.  * and it's even more unlikely to not have any alternative mvs/modes with lower cost. */

  748. #define HSUM_MMX(a, t, dst)\

  749.     "movq "#a", "#t"                  \n\t"\

  750.     "psrlq $32, "#a"                  \n\t"\

  751.     "paddusw "#t", "#a"               \n\t"\

  752.     "movq "#a", "#t"                  \n\t"\

  753.     "psrlq $16, "#a"                  \n\t"\

  754.     "paddusw "#t", "#a"               \n\t"\

  755.     "movd "#a", "#dst"                \n\t"\

  756. 

  757. #define HSUM_MMXEXT(a, t, dst)             \

  758.     "pshufw $0x0E, "#a", "#t"         \n\t"\

  759.     "paddusw "#t", "#a"               \n\t"\

  760.     "pshufw $0x01, "#a", "#t"         \n\t"\

  761.     "paddusw "#t", "#a"               \n\t"\

  762.     "movd "#a", "#dst"                \n\t"\

  763. 

  764. #define HSUM_SSE2(a, t, dst)\

  765.     "movhlps "#a", "#t"               \n\t"\

  766.     "paddusw "#t", "#a"               \n\t"\

  767.     "pshuflw $0x0E, "#a", "#t"        \n\t"\

  768.     "paddusw "#t", "#a"               \n\t"\

  769.     "pshuflw $0x01, "#a", "#t"        \n\t"\

  770.     "paddusw "#t", "#a"               \n\t"\

  771.     "movd "#a", "#dst"                \n\t"\

  772. 

  773. #define DCT_SAD4(m,mm,o)\

  774.     "mov"#m" "#o"+ 0(%1), "#mm"2      \n\t"\

  775.     "mov"#m" "#o"+16(%1), "#mm"3      \n\t"\

  776.     "mov"#m" "#o"+32(%1), "#mm"4      \n\t"\

  777.     "mov"#m" "#o"+48(%1), "#mm"5      \n\t"\

  778.     MMABS_SUM(mm##2, mm##6, mm##0)\

  779.     MMABS_SUM(mm##3, mm##7, mm##1)\

  780.     MMABS_SUM(mm##4, mm##6, mm##0)\

  781.     MMABS_SUM(mm##5, mm##7, mm##1)\

  782. 

  783. #define DCT_SAD_MMX\

  784.     "pxor %%mm0, %%mm0                \n\t"\

  785.     "pxor %%mm1, %%mm1                \n\t"\

  786.     DCT_SAD4(q, %%mm, 0)\

  787.     DCT_SAD4(q, %%mm, 8)\

  788.     DCT_SAD4(q, %%mm, 64)\

  789.     DCT_SAD4(q, %%mm, 72)\

  790.     "paddusw %%mm1, %%mm0             \n\t"\

  791.     HSUM(%%mm0, %%mm1, %0)

  792. 

  793. #define DCT_SAD_SSE2\

  794.     "pxor %%xmm0, %%xmm0              \n\t"\

  795.     "pxor %%xmm1, %%xmm1              \n\t"\

  796.     DCT_SAD4(dqa, %%xmm, 0)\

  797.     DCT_SAD4(dqa, %%xmm, 64)\

  798.     "paddusw %%xmm1, %%xmm0           \n\t"\

  799.     HSUM(%%xmm0, %%xmm1, %0)

  800. 

  801. #define DCT_SAD_FUNC(cpu) \

  802. static int sum_abs_dctelem_##cpu(int16_t *block){\

  803.     int sum;\

  804.     __asm__ volatile(\

  805.         DCT_SAD\

  806.         :"=r"(sum)\

  807.         :"r"(block)\

  808.     );\

  809.     return sum&0xFFFF;\

  810. }

  811. 

  812. #define DCT_SAD       DCT_SAD_MMX

  813. #define HSUM(a,t,dst) HSUM_MMX(a,t,dst)

  814. #define MMABS(a,z)    MMABS_MMX(a,z)

  815. DCT_SAD_FUNC(mmx)

  816. #undef MMABS

  817. #undef HSUM

  818. 

  819. #define HSUM(a,t,dst) HSUM_MMXEXT(a,t,dst)

  820. #define MMABS(a,z)    MMABS_MMXEXT(a,z)

  821. DCT_SAD_FUNC(mmxext)

  822. #undef HSUM

  823. #undef DCT_SAD

  824. 

  825. #define DCT_SAD       DCT_SAD_SSE2

  826. #define HSUM(a,t,dst) HSUM_SSE2(a,t,dst)

  827. DCT_SAD_FUNC(sse2)

  828. #undef MMABS

  829. 

  830. #if HAVE_SSSE3_INLINE

  831. #define MMABS(a,z)    MMABS_SSSE3(a,z)

  832. DCT_SAD_FUNC(ssse3)

  833. #undef MMABS

  834. #endif

  835. #undef HSUM

  836. #undef DCT_SAD

  837. 

  838. static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int size){

  839.     int sum;

  840.     x86_reg i=size;

  841.     __asm__ volatile(

  842.         "pxor %%mm4, %%mm4 \n"

  843.         "1: \n"

  844.         "sub $8, %0 \n"

  845.         "movq (%2,%0), %%mm2 \n"

  846.         "movq (%3,%0,2), %%mm0 \n"

  847.         "movq 8(%3,%0,2), %%mm1 \n"

  848.         "punpckhbw %%mm2, %%mm3 \n"

  849.         "punpcklbw %%mm2, %%mm2 \n"

  850.         "psraw $8, %%mm3 \n"

  851.         "psraw $8, %%mm2 \n"

  852.         "psubw %%mm3, %%mm1 \n"

  853.         "psubw %%mm2, %%mm0 \n"

  854.         "pmaddwd %%mm1, %%mm1 \n"

  855.         "pmaddwd %%mm0, %%mm0 \n"

  856.         "paddd %%mm1, %%mm4 \n"

  857.         "paddd %%mm0, %%mm4 \n"

  858.         "jg 1b \n"

  859.         "movq %%mm4, %%mm3 \n"

  860.         "psrlq $32, %%mm3 \n"

  861.         "paddd %%mm3, %%mm4 \n"

  862.         "movd %%mm4, %1 \n"

  863.         :"+r"(i), "=r"(sum)

  864.         :"r"(pix1), "r"(pix2)

  865.     );

  866.     return sum;

  867. }

  868. 

  869. #define PHADDD(a, t)\

  870.     "movq "#a", "#t"                  \n\t"\

  871.     "psrlq $32, "#a"                  \n\t"\

  872.     "paddd "#t", "#a"                 \n\t"

  873. /*

  874.    pmulhw: dst[0-15]=(src[0-15]*dst[0-15])[16-31]

  875.    pmulhrw: dst[0-15]=(src[0-15]*dst[0-15] + 0x8000)[16-31]

  876.    pmulhrsw: dst[0-15]=(src[0-15]*dst[0-15] + 0x4000)[15-30]

  877.  */

  878. #define PMULHRW(x, y, s, o)\

  879.     "pmulhw " #s ", "#x "            \n\t"\

  880.     "pmulhw " #s ", "#y "            \n\t"\

  881.     "paddw " #o ", "#x "             \n\t"\

  882.     "paddw " #o ", "#y "             \n\t"\

  883.     "psraw $1, "#x "                 \n\t"\

  884.     "psraw $1, "#y "                 \n\t"

  885. #define DEF(x) x ## _mmx

  886. #define SET_RND MOVQ_WONE

  887. #define SCALE_OFFSET 1

  888. 

  889. #include "dsputil_qns_template.c"

  890. 

  891. #undef DEF

  892. #undef SET_RND

  893. #undef SCALE_OFFSET

  894. #undef PMULHRW

  895. 

  896. #define DEF(x) x ## _3dnow

  897. #define SET_RND(x)

  898. #define SCALE_OFFSET 0

  899. #define PMULHRW(x, y, s, o)\

  900.     "pmulhrw " #s ", "#x "           \n\t"\

  901.     "pmulhrw " #s ", "#y "           \n\t"

  902. 

  903. #include "dsputil_qns_template.c"

  904. 

  905. #undef DEF

  906. #undef SET_RND

  907. #undef SCALE_OFFSET

  908. #undef PMULHRW

  909. 

  910. #if HAVE_SSSE3_INLINE

  911. #undef PHADDD

  912. #define DEF(x) x ## _ssse3

  913. #define SET_RND(x)

  914. #define SCALE_OFFSET -1

  915. #define PHADDD(a, t)\

  916.     "pshufw $0x0E, "#a", "#t"         \n\t"\

  917.     "paddd "#t", "#a"                 \n\t" /* faster than phaddd on core2 */

  918. #define PMULHRW(x, y, s, o)\

  919.     "pmulhrsw " #s ", "#x "          \n\t"\

  920.     "pmulhrsw " #s ", "#y "          \n\t"

  921. 

  922. #include "dsputil_qns_template.c"

  923. 

  924. #undef DEF

  925. #undef SET_RND

  926. #undef SCALE_OFFSET

  927. #undef PMULHRW

  928. #undef PHADDD

  929. #endif /* HAVE_SSSE3_INLINE */

  930. 

  931. #endif /* HAVE_INLINE_ASM */

  932. 

  933. int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);

  934. 

  935. #define hadamard_func(cpu) \

  936. int ff_hadamard8_diff_##cpu  (void *s, uint8_t *src1, uint8_t *src2, \

  937.                               int stride, int h); \

  938. int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \

  939.                               int stride, int h);

  940. 

  941. hadamard_func(mmx)

  942. hadamard_func(mmxext)

  943. hadamard_func(sse2)

  944. hadamard_func(ssse3)

  945. 

  946. av_cold void ff_dsputilenc_init_mmx(DSPContext *c, AVCodecContext *avctx)

  947. {

  948.     int cpu_flags = av_get_cpu_flags();

  949. 

  950. #if HAVE_YASM

  951.     int bit_depth = avctx->bits_per_raw_sample;

  952. 

  953.     if (EXTERNAL_MMX(cpu_flags)) {

  954.         if (bit_depth <= 8)

  955.             c->get_pixels = ff_get_pixels_mmx;

  956.         c->diff_pixels = ff_diff_pixels_mmx;

  957.         c->pix_sum = ff_pix_sum16_mmx;

  958. 

  959.         c->pix_norm1 = ff_pix_norm1_mmx;

  960.     }

  961.     if (EXTERNAL_SSE2(cpu_flags))

  962.         if (bit_depth <= 8)

  963.             c->get_pixels = ff_get_pixels_sse2;

  964. #endif /* HAVE_YASM */

  965. 

  966. #if HAVE_INLINE_ASM

  967.     if (cpu_flags & AV_CPU_FLAG_MMX) {

  968.         const int dct_algo = avctx->dct_algo;

  969.         if (avctx->bits_per_raw_sample <= 8 &&

  970.             (dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX)) {

  971.             if (cpu_flags & AV_CPU_FLAG_SSE2) {

  972.                 c->fdct = ff_fdct_sse2;

  973.             } else if (cpu_flags & AV_CPU_FLAG_MMXEXT) {

  974.                 c->fdct = ff_fdct_mmxext;

  975.             }else{

  976.                 c->fdct = ff_fdct_mmx;

  977.             }

  978.         }

  979. 

  980. 

  981.         c->diff_bytes= diff_bytes_mmx;

  982.         c->sum_abs_dctelem= sum_abs_dctelem_mmx;

  983. 

  984.         c->sse[0] = sse16_mmx;

  985.         c->sse[1] = sse8_mmx;

  986.         c->vsad[4]= vsad_intra16_mmx;

  987. 

  988.         c->nsse[0] = nsse16_mmx;

  989.         c->nsse[1] = nsse8_mmx;

  990.         if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

  991.             c->vsad[0] = vsad16_mmx;

  992.         }

  993. 

  994.         if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

  995.             c->try_8x8basis= try_8x8basis_mmx;

  996.         }

  997.         c->add_8x8basis= add_8x8basis_mmx;

  998. 

  999.         c->ssd_int8_vs_int16 = ssd_int8_vs_int16_mmx;

  1000. 

  1001.         if (cpu_flags & AV_CPU_FLAG_MMXEXT) {

  1002.             c->sum_abs_dctelem = sum_abs_dctelem_mmxext;

  1003.             c->vsad[4]         = vsad_intra16_mmxext;

  1004. 

  1005.             if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

  1006.                 c->vsad[0] = vsad16_mmxext;

  1007.             }

  1008. 

  1009.             c->sub_hfyu_median_prediction = sub_hfyu_median_prediction_mmxext;

  1010.         }

  1011. 

  1012.         if (cpu_flags & AV_CPU_FLAG_SSE2) {

  1013.             c->sum_abs_dctelem= sum_abs_dctelem_sse2;

  1014.         }

  1015. 

  1016. #if HAVE_SSSE3_INLINE

  1017.         if (cpu_flags & AV_CPU_FLAG_SSSE3) {

  1018.             if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

  1019.                 c->try_8x8basis= try_8x8basis_ssse3;

  1020.             }

  1021.             c->add_8x8basis= add_8x8basis_ssse3;

  1022.             c->sum_abs_dctelem= sum_abs_dctelem_ssse3;

  1023.         }

  1024. #endif

  1025. 

  1026.         if (cpu_flags & AV_CPU_FLAG_3DNOW) {

  1027.             if(!(avctx->flags & CODEC_FLAG_BITEXACT)){

  1028.                 c->try_8x8basis= try_8x8basis_3dnow;

  1029.             }

  1030.             c->add_8x8basis= add_8x8basis_3dnow;

  1031.         }

  1032.     }

  1033. #endif /* HAVE_INLINE_ASM */

  1034. 

  1035.     if (EXTERNAL_MMX(cpu_flags)) {

  1036.         c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx;

  1037.         c->hadamard8_diff[1] = ff_hadamard8_diff_mmx;

  1038. 

  1039.         if (EXTERNAL_MMXEXT(cpu_flags)) {

  1040.             c->hadamard8_diff[0] = ff_hadamard8_diff16_mmxext;

  1041.             c->hadamard8_diff[1] = ff_hadamard8_diff_mmxext;

  1042.         }

  1043. 

  1044.         if (EXTERNAL_SSE2(cpu_flags)) {

  1045.             c->sse[0] = ff_sse16_sse2;

  1046. 

  1047. #if HAVE_ALIGNED_STACK

  1048.             c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2;

  1049.             c->hadamard8_diff[1] = ff_hadamard8_diff_sse2;

  1050. #endif

  1051.         }

  1052. 

  1053.         if (EXTERNAL_SSSE3(cpu_flags) && HAVE_ALIGNED_STACK) {

  1054.             c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3;

  1055.             c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3;

  1056.         }

  1057.     }

  1058. 

  1059.     ff_dsputil_init_pix_mmx(c, avctx);

  1060. }