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FFmpeg/libavcodec/x86/mpegvideo_mmx.c

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  1. /*

  2.  * The simplest mpeg encoder (well, it was the simplest!)

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

  4.  *

  5.  * Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru>

  6.  * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at>

  7.  *

  8.  * This file is part of FFmpeg.

  9.  *

  10.  * FFmpeg 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.  * FFmpeg 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 FFmpeg; 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/x86_cpu.h"

  26. #include "libavcodec/avcodec.h"

  27. #include "libavcodec/dsputil.h"

  28. #include "libavcodec/mpegvideo.h"

  29. #include "dsputil_mmx.h"

  30. 

  31. extern uint16_t inv_zigzag_direct16[64];

  32. 

  33. 

  34. static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,

  35.                                   DCTELEM *block, int n, int qscale)

  36. {

  37.     x86_reg level, qmul, qadd, nCoeffs;

  38. 

  39.     qmul = qscale << 1;

  40. 

  41.     assert(s->block_last_index[n]>=0 || s->h263_aic);

  42. 

  43.     if (!s->h263_aic) {

  44.         if (n < 4)

  45.             level = block[0] * s->y_dc_scale;

  46.         else

  47.             level = block[0] * s->c_dc_scale;

  48.         qadd = (qscale - 1) | 1;

  49.     }else{

  50.         qadd = 0;

  51.         level= block[0];

  52.     }

  53.     if(s->ac_pred)

  54.         nCoeffs=63;

  55.     else

  56.         nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];

  57. //printf("%d %d  ", qmul, qadd);

  58. __asm__ volatile(

  59.                 "movd %1, %%mm6                 \n\t" //qmul

  60.                 "packssdw %%mm6, %%mm6          \n\t"

  61.                 "packssdw %%mm6, %%mm6          \n\t"

  62.                 "movd %2, %%mm5                 \n\t" //qadd

  63.                 "pxor %%mm7, %%mm7              \n\t"

  64.                 "packssdw %%mm5, %%mm5          \n\t"

  65.                 "packssdw %%mm5, %%mm5          \n\t"

  66.                 "psubw %%mm5, %%mm7             \n\t"

  67.                 "pxor %%mm4, %%mm4              \n\t"

  68.                 ASMALIGN(4)

  69.                 "1:                             \n\t"

  70.                 "movq (%0, %3), %%mm0           \n\t"

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

  72. 

  73.                 "pmullw %%mm6, %%mm0            \n\t"

  74.                 "pmullw %%mm6, %%mm1            \n\t"

  75. 

  76.                 "movq (%0, %3), %%mm2           \n\t"

  77.                 "movq 8(%0, %3), %%mm3          \n\t"

  78. 

  79.                 "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  80.                 "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  81. 

  82.                 "pxor %%mm2, %%mm0              \n\t"

  83.                 "pxor %%mm3, %%mm1              \n\t"

  84. 

  85.                 "paddw %%mm7, %%mm0             \n\t"

  86.                 "paddw %%mm7, %%mm1             \n\t"

  87. 

  88.                 "pxor %%mm0, %%mm2              \n\t"

  89.                 "pxor %%mm1, %%mm3              \n\t"

  90. 

  91.                 "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0

  92.                 "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0

  93. 

  94.                 "pandn %%mm2, %%mm0             \n\t"

  95.                 "pandn %%mm3, %%mm1             \n\t"

  96. 

  97.                 "movq %%mm0, (%0, %3)           \n\t"

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

  99. 

  100.                 "add $16, %3                    \n\t"

  101.                 "jng 1b                         \n\t"

  102.                 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))

  103.                 : "memory"

  104.         );

  105.         block[0]= level;

  106. }

  107. 

  108. 

  109. static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,

  110.                                   DCTELEM *block, int n, int qscale)

  111. {

  112.     x86_reg qmul, qadd, nCoeffs;

  113. 

  114.     qmul = qscale << 1;

  115.     qadd = (qscale - 1) | 1;

  116. 

  117.     assert(s->block_last_index[n]>=0 || s->h263_aic);

  118. 

  119.     nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];

  120. //printf("%d %d  ", qmul, qadd);

  121. __asm__ volatile(

  122.                 "movd %1, %%mm6                 \n\t" //qmul

  123.                 "packssdw %%mm6, %%mm6          \n\t"

  124.                 "packssdw %%mm6, %%mm6          \n\t"

  125.                 "movd %2, %%mm5                 \n\t" //qadd

  126.                 "pxor %%mm7, %%mm7              \n\t"

  127.                 "packssdw %%mm5, %%mm5          \n\t"

  128.                 "packssdw %%mm5, %%mm5          \n\t"

  129.                 "psubw %%mm5, %%mm7             \n\t"

  130.                 "pxor %%mm4, %%mm4              \n\t"

  131.                 ASMALIGN(4)

  132.                 "1:                             \n\t"

  133.                 "movq (%0, %3), %%mm0           \n\t"

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

  135. 

  136.                 "pmullw %%mm6, %%mm0            \n\t"

  137.                 "pmullw %%mm6, %%mm1            \n\t"

  138. 

  139.                 "movq (%0, %3), %%mm2           \n\t"

  140.                 "movq 8(%0, %3), %%mm3          \n\t"

  141. 

  142.                 "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  143.                 "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  144. 

  145.                 "pxor %%mm2, %%mm0              \n\t"

  146.                 "pxor %%mm3, %%mm1              \n\t"

  147. 

  148.                 "paddw %%mm7, %%mm0             \n\t"

  149.                 "paddw %%mm7, %%mm1             \n\t"

  150. 

  151.                 "pxor %%mm0, %%mm2              \n\t"

  152.                 "pxor %%mm1, %%mm3              \n\t"

  153. 

  154.                 "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0

  155.                 "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0

  156. 

  157.                 "pandn %%mm2, %%mm0             \n\t"

  158.                 "pandn %%mm3, %%mm1             \n\t"

  159. 

  160.                 "movq %%mm0, (%0, %3)           \n\t"

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

  162. 

  163.                 "add $16, %3                    \n\t"

  164.                 "jng 1b                         \n\t"

  165.                 ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))

  166.                 : "memory"

  167.         );

  168. }

  169. 

  170. 

  171. /*

  172.   NK:

  173.   Note: looking at PARANOID:

  174.   "enable all paranoid tests for rounding, overflows, etc..."

  175. 

  176. #ifdef PARANOID

  177.                 if (level < -2048 || level > 2047)

  178.                     fprintf(stderr, "unquant error %d %d\n", i, level);

  179. #endif

  180.   We can suppose that result of two multiplications can't be greater than 0xFFFF

  181.   i.e. is 16-bit, so we use here only PMULLW instruction and can avoid

  182.   a complex multiplication.

  183. =====================================================

  184.  Full formula for multiplication of 2 integer numbers

  185.  which are represent as high:low words:

  186.  input: value1 = high1:low1

  187.         value2 = high2:low2

  188.  output: value3 = value1*value2

  189.  value3=high3:low3 (on overflow: modulus 2^32 wrap-around)

  190.  this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4

  191.  but this algorithm will compute only 0x66cb0ce4

  192.  this limited by 16-bit size of operands

  193.  ---------------------------------

  194.  tlow1 = high1*low2

  195.  tlow2 = high2*low1

  196.  tlow1 = tlow1 + tlow2

  197.  high3:low3 = low1*low2

  198.  high3 += tlow1

  199. */

  200. static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,

  201.                                      DCTELEM *block, int n, int qscale)

  202. {

  203.     x86_reg nCoeffs;

  204.     const uint16_t *quant_matrix;

  205.     int block0;

  206. 

  207.     assert(s->block_last_index[n]>=0);

  208. 

  209.     nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;

  210. 

  211.     if (n < 4)

  212.         block0 = block[0] * s->y_dc_scale;

  213.     else

  214.         block0 = block[0] * s->c_dc_scale;

  215.     /* XXX: only mpeg1 */

  216.     quant_matrix = s->intra_matrix;

  217. __asm__ volatile(

  218.                 "pcmpeqw %%mm7, %%mm7           \n\t"

  219.                 "psrlw $15, %%mm7               \n\t"

  220.                 "movd %2, %%mm6                 \n\t"

  221.                 "packssdw %%mm6, %%mm6          \n\t"

  222.                 "packssdw %%mm6, %%mm6          \n\t"

  223.                 "mov %3, %%"REG_a"              \n\t"

  224.                 ASMALIGN(4)

  225.                 "1:                             \n\t"

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

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

  228.                 "movq (%1, %%"REG_a"), %%mm4    \n\t"

  229.                 "movq 8(%1, %%"REG_a"), %%mm5   \n\t"

  230.                 "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]

  231.                 "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]

  232.                 "pxor %%mm2, %%mm2              \n\t"

  233.                 "pxor %%mm3, %%mm3              \n\t"

  234.                 "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  235.                 "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  236.                 "pxor %%mm2, %%mm0              \n\t"

  237.                 "pxor %%mm3, %%mm1              \n\t"

  238.                 "psubw %%mm2, %%mm0             \n\t" // abs(block[i])

  239.                 "psubw %%mm3, %%mm1             \n\t" // abs(block[i])

  240.                 "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q

  241.                 "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q

  242.                 "pxor %%mm4, %%mm4              \n\t"

  243.                 "pxor %%mm5, %%mm5              \n\t" // FIXME slow

  244.                 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0

  245.                 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0

  246.                 "psraw $3, %%mm0                \n\t"

  247.                 "psraw $3, %%mm1                \n\t"

  248.                 "psubw %%mm7, %%mm0             \n\t"

  249.                 "psubw %%mm7, %%mm1             \n\t"

  250.                 "por %%mm7, %%mm0               \n\t"

  251.                 "por %%mm7, %%mm1               \n\t"

  252.                 "pxor %%mm2, %%mm0              \n\t"

  253.                 "pxor %%mm3, %%mm1              \n\t"

  254.                 "psubw %%mm2, %%mm0             \n\t"

  255.                 "psubw %%mm3, %%mm1             \n\t"

  256.                 "pandn %%mm0, %%mm4             \n\t"

  257.                 "pandn %%mm1, %%mm5             \n\t"

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

  259.                 "movq %%mm5, 8(%0, %%"REG_a")   \n\t"

  260. 

  261.                 "add $16, %%"REG_a"             \n\t"

  262.                 "js 1b                          \n\t"

  263.                 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)

  264.                 : "%"REG_a, "memory"

  265.         );

  266.     block[0]= block0;

  267. }

  268. 

  269. static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,

  270.                                      DCTELEM *block, int n, int qscale)

  271. {

  272.     x86_reg nCoeffs;

  273.     const uint16_t *quant_matrix;

  274. 

  275.     assert(s->block_last_index[n]>=0);

  276. 

  277.     nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;

  278. 

  279.         quant_matrix = s->inter_matrix;

  280. __asm__ volatile(

  281.                 "pcmpeqw %%mm7, %%mm7           \n\t"

  282.                 "psrlw $15, %%mm7               \n\t"

  283.                 "movd %2, %%mm6                 \n\t"

  284.                 "packssdw %%mm6, %%mm6          \n\t"

  285.                 "packssdw %%mm6, %%mm6          \n\t"

  286.                 "mov %3, %%"REG_a"              \n\t"

  287.                 ASMALIGN(4)

  288.                 "1:                             \n\t"

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

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

  291.                 "movq (%1, %%"REG_a"), %%mm4    \n\t"

  292.                 "movq 8(%1, %%"REG_a"), %%mm5   \n\t"

  293.                 "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]

  294.                 "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]

  295.                 "pxor %%mm2, %%mm2              \n\t"

  296.                 "pxor %%mm3, %%mm3              \n\t"

  297.                 "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  298.                 "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  299.                 "pxor %%mm2, %%mm0              \n\t"

  300.                 "pxor %%mm3, %%mm1              \n\t"

  301.                 "psubw %%mm2, %%mm0             \n\t" // abs(block[i])

  302.                 "psubw %%mm3, %%mm1             \n\t" // abs(block[i])

  303.                 "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2

  304.                 "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2

  305.                 "paddw %%mm7, %%mm0             \n\t" // abs(block[i])*2 + 1

  306.                 "paddw %%mm7, %%mm1             \n\t" // abs(block[i])*2 + 1

  307.                 "pmullw %%mm4, %%mm0            \n\t" // (abs(block[i])*2 + 1)*q

  308.                 "pmullw %%mm5, %%mm1            \n\t" // (abs(block[i])*2 + 1)*q

  309.                 "pxor %%mm4, %%mm4              \n\t"

  310.                 "pxor %%mm5, %%mm5              \n\t" // FIXME slow

  311.                 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0

  312.                 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0

  313.                 "psraw $4, %%mm0                \n\t"

  314.                 "psraw $4, %%mm1                \n\t"

  315.                 "psubw %%mm7, %%mm0             \n\t"

  316.                 "psubw %%mm7, %%mm1             \n\t"

  317.                 "por %%mm7, %%mm0               \n\t"

  318.                 "por %%mm7, %%mm1               \n\t"

  319.                 "pxor %%mm2, %%mm0              \n\t"

  320.                 "pxor %%mm3, %%mm1              \n\t"

  321.                 "psubw %%mm2, %%mm0             \n\t"

  322.                 "psubw %%mm3, %%mm1             \n\t"

  323.                 "pandn %%mm0, %%mm4             \n\t"

  324.                 "pandn %%mm1, %%mm5             \n\t"

  325.                 "movq %%mm4, (%0, %%"REG_a")    \n\t"

  326.                 "movq %%mm5, 8(%0, %%"REG_a")   \n\t"

  327. 

  328.                 "add $16, %%"REG_a"             \n\t"

  329.                 "js 1b                          \n\t"

  330.                 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)

  331.                 : "%"REG_a, "memory"

  332.         );

  333. }

  334. 

  335. static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,

  336.                                      DCTELEM *block, int n, int qscale)

  337. {

  338.     x86_reg nCoeffs;

  339.     const uint16_t *quant_matrix;

  340.     int block0;

  341. 

  342.     assert(s->block_last_index[n]>=0);

  343. 

  344.     if(s->alternate_scan) nCoeffs= 63; //FIXME

  345.     else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];

  346. 

  347.     if (n < 4)

  348.         block0 = block[0] * s->y_dc_scale;

  349.     else

  350.         block0 = block[0] * s->c_dc_scale;

  351.     quant_matrix = s->intra_matrix;

  352. __asm__ volatile(

  353.                 "pcmpeqw %%mm7, %%mm7           \n\t"

  354.                 "psrlw $15, %%mm7               \n\t"

  355.                 "movd %2, %%mm6                 \n\t"

  356.                 "packssdw %%mm6, %%mm6          \n\t"

  357.                 "packssdw %%mm6, %%mm6          \n\t"

  358.                 "mov %3, %%"REG_a"              \n\t"

  359.                 ASMALIGN(4)

  360.                 "1:                             \n\t"

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

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

  363.                 "movq (%1, %%"REG_a"), %%mm4    \n\t"

  364.                 "movq 8(%1, %%"REG_a"), %%mm5   \n\t"

  365.                 "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]

  366.                 "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]

  367.                 "pxor %%mm2, %%mm2              \n\t"

  368.                 "pxor %%mm3, %%mm3              \n\t"

  369.                 "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  370.                 "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  371.                 "pxor %%mm2, %%mm0              \n\t"

  372.                 "pxor %%mm3, %%mm1              \n\t"

  373.                 "psubw %%mm2, %%mm0             \n\t" // abs(block[i])

  374.                 "psubw %%mm3, %%mm1             \n\t" // abs(block[i])

  375.                 "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q

  376.                 "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q

  377.                 "pxor %%mm4, %%mm4              \n\t"

  378.                 "pxor %%mm5, %%mm5              \n\t" // FIXME slow

  379.                 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0

  380.                 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0

  381.                 "psraw $3, %%mm0                \n\t"

  382.                 "psraw $3, %%mm1                \n\t"

  383.                 "pxor %%mm2, %%mm0              \n\t"

  384.                 "pxor %%mm3, %%mm1              \n\t"

  385.                 "psubw %%mm2, %%mm0             \n\t"

  386.                 "psubw %%mm3, %%mm1             \n\t"

  387.                 "pandn %%mm0, %%mm4             \n\t"

  388.                 "pandn %%mm1, %%mm5             \n\t"

  389.                 "movq %%mm4, (%0, %%"REG_a")    \n\t"

  390.                 "movq %%mm5, 8(%0, %%"REG_a")   \n\t"

  391. 

  392.                 "add $16, %%"REG_a"             \n\t"

  393.                 "jng 1b                         \n\t"

  394.                 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)

  395.                 : "%"REG_a, "memory"

  396.         );

  397.     block[0]= block0;

  398.         //Note, we do not do mismatch control for intra as errors cannot accumulate

  399. }

  400. 

  401. static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,

  402.                                      DCTELEM *block, int n, int qscale)

  403. {

  404.     x86_reg nCoeffs;

  405.     const uint16_t *quant_matrix;

  406. 

  407.     assert(s->block_last_index[n]>=0);

  408. 

  409.     if(s->alternate_scan) nCoeffs= 63; //FIXME

  410.     else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];

  411. 

  412.         quant_matrix = s->inter_matrix;

  413. __asm__ volatile(

  414.                 "pcmpeqw %%mm7, %%mm7           \n\t"

  415.                 "psrlq $48, %%mm7               \n\t"

  416.                 "movd %2, %%mm6                 \n\t"

  417.                 "packssdw %%mm6, %%mm6          \n\t"

  418.                 "packssdw %%mm6, %%mm6          \n\t"

  419.                 "mov %3, %%"REG_a"              \n\t"

  420.                 ASMALIGN(4)

  421.                 "1:                             \n\t"

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

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

  424.                 "movq (%1, %%"REG_a"), %%mm4    \n\t"

  425.                 "movq 8(%1, %%"REG_a"), %%mm5   \n\t"

  426.                 "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]

  427.                 "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]

  428.                 "pxor %%mm2, %%mm2              \n\t"

  429.                 "pxor %%mm3, %%mm3              \n\t"

  430.                 "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0

  431.                 "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0

  432.                 "pxor %%mm2, %%mm0              \n\t"

  433.                 "pxor %%mm3, %%mm1              \n\t"

  434.                 "psubw %%mm2, %%mm0             \n\t" // abs(block[i])

  435.                 "psubw %%mm3, %%mm1             \n\t" // abs(block[i])

  436.                 "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2

  437.                 "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2

  438.                 "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*2*q

  439.                 "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*2*q

  440.                 "paddw %%mm4, %%mm0             \n\t" // (abs(block[i])*2 + 1)*q

  441.                 "paddw %%mm5, %%mm1             \n\t" // (abs(block[i])*2 + 1)*q

  442.                 "pxor %%mm4, %%mm4              \n\t"

  443.                 "pxor %%mm5, %%mm5              \n\t" // FIXME slow

  444.                 "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0

  445.                 "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0

  446.                 "psrlw $4, %%mm0                \n\t"

  447.                 "psrlw $4, %%mm1                \n\t"

  448.                 "pxor %%mm2, %%mm0              \n\t"

  449.                 "pxor %%mm3, %%mm1              \n\t"

  450.                 "psubw %%mm2, %%mm0             \n\t"

  451.                 "psubw %%mm3, %%mm1             \n\t"

  452.                 "pandn %%mm0, %%mm4             \n\t"

  453.                 "pandn %%mm1, %%mm5             \n\t"

  454.                 "pxor %%mm4, %%mm7              \n\t"

  455.                 "pxor %%mm5, %%mm7              \n\t"

  456.                 "movq %%mm4, (%0, %%"REG_a")    \n\t"

  457.                 "movq %%mm5, 8(%0, %%"REG_a")   \n\t"

  458. 

  459.                 "add $16, %%"REG_a"             \n\t"

  460.                 "jng 1b                         \n\t"

  461.                 "movd 124(%0, %3), %%mm0        \n\t"

  462.                 "movq %%mm7, %%mm6              \n\t"

  463.                 "psrlq $32, %%mm7               \n\t"

  464.                 "pxor %%mm6, %%mm7              \n\t"

  465.                 "movq %%mm7, %%mm6              \n\t"

  466.                 "psrlq $16, %%mm7               \n\t"

  467.                 "pxor %%mm6, %%mm7              \n\t"

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

  469.                 "psrlq $15, %%mm7               \n\t"

  470.                 "pxor %%mm7, %%mm0              \n\t"

  471.                 "movd %%mm0, 124(%0, %3)        \n\t"

  472. 

  473.                 ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs)

  474.                 : "%"REG_a, "memory"

  475.         );

  476. }

  477. 

  478. static void  denoise_dct_mmx(MpegEncContext *s, DCTELEM *block){

  479.     const int intra= s->mb_intra;

  480.     int *sum= s->dct_error_sum[intra];

  481.     uint16_t *offset= s->dct_offset[intra];

  482. 

  483.     s->dct_count[intra]++;

  484. 

  485.     __asm__ volatile(

  486.         "pxor %%mm7, %%mm7                      \n\t"

  487.         "1:                                     \n\t"

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

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

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

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

  492.         "pcmpgtw %%mm2, %%mm0                   \n\t"

  493.         "pcmpgtw %%mm3, %%mm1                   \n\t"

  494.         "pxor %%mm0, %%mm2                      \n\t"

  495.         "pxor %%mm1, %%mm3                      \n\t"

  496.         "psubw %%mm0, %%mm2                     \n\t"

  497.         "psubw %%mm1, %%mm3                     \n\t"

  498.         "movq %%mm2, %%mm4                      \n\t"

  499.         "movq %%mm3, %%mm5                      \n\t"

  500.         "psubusw (%2), %%mm2                    \n\t"

  501.         "psubusw 8(%2), %%mm3                   \n\t"

  502.         "pxor %%mm0, %%mm2                      \n\t"

  503.         "pxor %%mm1, %%mm3                      \n\t"

  504.         "psubw %%mm0, %%mm2                     \n\t"

  505.         "psubw %%mm1, %%mm3                     \n\t"

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

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

  508.         "movq %%mm4, %%mm2                      \n\t"

  509.         "movq %%mm5, %%mm3                      \n\t"

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

  511.         "punpckhwd %%mm7, %%mm2                 \n\t"

  512.         "punpcklwd %%mm7, %%mm5                 \n\t"

  513.         "punpckhwd %%mm7, %%mm3                 \n\t"

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

  515.         "paddd 8(%1), %%mm2                     \n\t"

  516.         "paddd 16(%1), %%mm5                    \n\t"

  517.         "paddd 24(%1), %%mm3                    \n\t"

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

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

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

  521.         "movq %%mm3, 24(%1)                     \n\t"

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

  523.         "add $32, %1                            \n\t"

  524.         "add $16, %2                            \n\t"

  525.         "cmp %3, %0                             \n\t"

  526.             " jb 1b                             \n\t"

  527.         : "+r" (block), "+r" (sum), "+r" (offset)

  528.         : "r"(block+64)

  529.     );

  530. }

  531. 

  532. static void  denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){

  533.     const int intra= s->mb_intra;

  534.     int *sum= s->dct_error_sum[intra];

  535.     uint16_t *offset= s->dct_offset[intra];

  536. 

  537.     s->dct_count[intra]++;

  538. 

  539.     __asm__ volatile(

  540.         "pxor %%xmm7, %%xmm7                    \n\t"

  541.         "1:                                     \n\t"

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

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

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

  545.         "movdqa 16(%0), %%xmm3                  \n\t"

  546.         "pcmpgtw %%xmm2, %%xmm0                 \n\t"

  547.         "pcmpgtw %%xmm3, %%xmm1                 \n\t"

  548.         "pxor %%xmm0, %%xmm2                    \n\t"

  549.         "pxor %%xmm1, %%xmm3                    \n\t"

  550.         "psubw %%xmm0, %%xmm2                   \n\t"

  551.         "psubw %%xmm1, %%xmm3                   \n\t"

  552.         "movdqa %%xmm2, %%xmm4                  \n\t"

  553.         "movdqa %%xmm3, %%xmm5                  \n\t"

  554.         "psubusw (%2), %%xmm2                   \n\t"

  555.         "psubusw 16(%2), %%xmm3                 \n\t"

  556.         "pxor %%xmm0, %%xmm2                    \n\t"

  557.         "pxor %%xmm1, %%xmm3                    \n\t"

  558.         "psubw %%xmm0, %%xmm2                   \n\t"

  559.         "psubw %%xmm1, %%xmm3                   \n\t"

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

  561.         "movdqa %%xmm3, 16(%0)                  \n\t"

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

  563.         "movdqa %%xmm5, %%xmm0                  \n\t"

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

  565.         "punpckhwd %%xmm7, %%xmm6               \n\t"

  566.         "punpcklwd %%xmm7, %%xmm5               \n\t"

  567.         "punpckhwd %%xmm7, %%xmm0               \n\t"

  568.         "paddd (%1), %%xmm4                     \n\t"

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

  570.         "paddd 32(%1), %%xmm5                   \n\t"

  571.         "paddd 48(%1), %%xmm0                   \n\t"

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

  573.         "movdqa %%xmm6, 16(%1)                  \n\t"

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

  575.         "movdqa %%xmm0, 48(%1)                  \n\t"

  576.         "add $32, %0                            \n\t"

  577.         "add $64, %1                            \n\t"

  578.         "add $32, %2                            \n\t"

  579.         "cmp %3, %0                             \n\t"

  580.             " jb 1b                             \n\t"

  581.         : "+r" (block), "+r" (sum), "+r" (offset)

  582.         : "r"(block+64)

  583.     );

  584. }

  585. 

  586. #if HAVE_SSSE3

  587. #define HAVE_SSSE3_BAK

  588. #endif

  589. #undef HAVE_SSSE3

  590. #define HAVE_SSSE3 0

  591. 

  592. #undef HAVE_SSE2

  593. #undef HAVE_MMX2

  594. #define HAVE_SSE2 0

  595. #define HAVE_MMX2 0

  596. #define RENAME(a) a ## _MMX

  597. #define RENAMEl(a) a ## _mmx

  598. #include "mpegvideo_mmx_template.c"

  599. 

  600. #undef HAVE_MMX2

  601. #define HAVE_MMX2 1

  602. #undef RENAME

  603. #undef RENAMEl

  604. #define RENAME(a) a ## _MMX2

  605. #define RENAMEl(a) a ## _mmx2

  606. #include "mpegvideo_mmx_template.c"

  607. 

  608. #undef HAVE_SSE2

  609. #define HAVE_SSE2 1

  610. #undef RENAME

  611. #undef RENAMEl

  612. #define RENAME(a) a ## _SSE2

  613. #define RENAMEl(a) a ## _sse2

  614. #include "mpegvideo_mmx_template.c"

  615. 

  616. #ifdef HAVE_SSSE3_BAK

  617. #undef HAVE_SSSE3

  618. #define HAVE_SSSE3 1

  619. #undef RENAME

  620. #undef RENAMEl

  621. #define RENAME(a) a ## _SSSE3

  622. #define RENAMEl(a) a ## _sse2

  623. #include "mpegvideo_mmx_template.c"

  624. #endif

  625. 

  626. void MPV_common_init_mmx(MpegEncContext *s)

  627. {

  628.     if (mm_flags & FF_MM_MMX) {

  629.         const int dct_algo = s->avctx->dct_algo;

  630. 

  631.         s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;

  632.         s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;

  633.         s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;

  634.         s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;

  635.         if(!(s->flags & CODEC_FLAG_BITEXACT))

  636.             s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;

  637.         s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;

  638. 

  639.         if (mm_flags & FF_MM_SSE2) {

  640.             s->denoise_dct= denoise_dct_sse2;

  641.         } else {

  642.                 s->denoise_dct= denoise_dct_mmx;

  643.         }

  644. 

  645.         if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){

  646. #if HAVE_SSSE3

  647.             if(mm_flags & FF_MM_SSSE3){

  648.                 s->dct_quantize= dct_quantize_SSSE3;

  649.             } else

  650. #endif

  651.             if(mm_flags & FF_MM_SSE2){

  652.                 s->dct_quantize= dct_quantize_SSE2;

  653.             } else if(mm_flags & FF_MM_MMX2){

  654.                 s->dct_quantize= dct_quantize_MMX2;

  655.             } else {

  656.                 s->dct_quantize= dct_quantize_MMX;

  657.             }

  658.         }

  659.     }

  660. }