falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43714 Commits
32 Branches
759MB
Tree: 6c180b35c4
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '6c180b35c4'
${ noResults }
FFmpeg/libavcodec/x86/mpegvideo_mmx.c

672 lines
28KB
Raw Blame History 

  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/cpu.h"

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

  27. #include "libavcodec/avcodec.h"

  28. #include "libavcodec/dsputil.h"

  29. #include "libavcodec/mpegvideo.h"

  30. #include "dsputil_mmx.h"

  31. 

  32. #if HAVE_INLINE_ASM

  33. 

  34. extern uint16_t ff_inv_zigzag_direct16[64];

  35. 

  36. 

  37. static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,

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

  39. {

  40.     x86_reg level, qmul, qadd, nCoeffs;

  41. 

  42.     qmul = qscale << 1;

  43. 

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

  45. 

  46.     if (!s->h263_aic) {

  47.         if (n < 4)

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

  49.         else

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

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

  52.     }else{

  53.         qadd = 0;

  54.         level= block[0];

  55.     }

  56.     if(s->ac_pred)

  57.         nCoeffs=63;

  58.     else

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

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

  61. __asm__ volatile(

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

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

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

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

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

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

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

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

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

  71.                 ".p2align 4                     \n\t"

  72.                 "1:                             \n\t"

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

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

  75. 

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

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

  78. 

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

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

  81. 

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

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

  84. 

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

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

  87. 

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

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

  90. 

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

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

  93. 

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

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

  96. 

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

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

  99. 

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

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

  102. 

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

  104.                 "jng 1b                         \n\t"

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

  106.                 : "memory"

  107.         );

  108.         block[0]= level;

  109. }

  110. 

  111. 

  112. static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,

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

  114. {

  115.     x86_reg qmul, qadd, nCoeffs;

  116. 

  117.     qmul = qscale << 1;

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

  119. 

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

  121. 

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

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

  124. __asm__ volatile(

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

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

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

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

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

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

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

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

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

  134.                 ".p2align 4                     \n\t"

  135.                 "1:                             \n\t"

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

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

  138. 

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

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

  141. 

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

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

  144. 

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

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

  147. 

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

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

  150. 

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

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

  153. 

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

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

  156. 

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

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

  159. 

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

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

  162. 

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

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

  165. 

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

  167.                 "jng 1b                         \n\t"

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

  169.                 : "memory"

  170.         );

  171. }

  172. 

  173. 

  174. /*

  175.   NK:

  176.   Note: looking at PARANOID:

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

  178. 

  179. #ifdef PARANOID

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

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

  182. #endif

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

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

  185.   a complex multiplication.

  186. =====================================================

  187.  Full formula for multiplication of 2 integer numbers

  188.  which are represent as high:low words:

  189.  input: value1 = high1:low1

  190.         value2 = high2:low2

  191.  output: value3 = value1*value2

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

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

  194.  but this algorithm will compute only 0x66cb0ce4

  195.  this limited by 16-bit size of operands

  196.  ---------------------------------

  197.  tlow1 = high1*low2

  198.  tlow2 = high2*low1

  199.  tlow1 = tlow1 + tlow2

  200.  high3:low3 = low1*low2

  201.  high3 += tlow1

  202. */

  203. static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,

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

  205. {

  206.     x86_reg nCoeffs;

  207.     const uint16_t *quant_matrix;

  208.     int block0;

  209. 

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

  211. 

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

  213. 

  214.     if (n < 4)

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

  216.     else

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

  218.     /* XXX: only mpeg1 */

  219.     quant_matrix = s->intra_matrix;

  220. __asm__ volatile(

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

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

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

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

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

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

  227.                 ".p2align 4                     \n\t"

  228.                 "1:                             \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  263. 

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

  265.                 "js 1b                          \n\t"

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

  267.                 : "%"REG_a, "memory"

  268.         );

  269.     block[0]= block0;

  270. }

  271. 

  272. static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,

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

  274. {

  275.     x86_reg nCoeffs;

  276.     const uint16_t *quant_matrix;

  277. 

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

  279. 

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

  281. 

  282.         quant_matrix = s->inter_matrix;

  283. __asm__ volatile(

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

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

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

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

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

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

  290.                 ".p2align 4                     \n\t"

  291.                 "1:                             \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  330. 

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

  332.                 "js 1b                          \n\t"

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

  334.                 : "%"REG_a, "memory"

  335.         );

  336. }

  337. 

  338. static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,

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

  340. {

  341.     x86_reg nCoeffs;

  342.     const uint16_t *quant_matrix;

  343.     int block0;

  344. 

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

  346. 

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

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

  349. 

  350.     if (n < 4)

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

  352.     else

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

  354.     quant_matrix = s->intra_matrix;

  355. __asm__ volatile(

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

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

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

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

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

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

  362.                 ".p2align 4                     \n\t"

  363.                 "1:                             \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  394. 

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

  396.                 "jng 1b                         \n\t"

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

  398.                 : "%"REG_a, "memory"

  399.         );

  400.     block[0]= block0;

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

  402. }

  403. 

  404. static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,

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

  406. {

  407.     x86_reg nCoeffs;

  408.     const uint16_t *quant_matrix;

  409. 

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

  411. 

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

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

  414. 

  415.         quant_matrix = s->inter_matrix;

  416. __asm__ volatile(

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

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

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

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

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

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

  423.                 ".p2align 4                     \n\t"

  424.                 "1:                             \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  461. 

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

  463.                 "jng 1b                         \n\t"

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

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

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

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

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

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

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

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

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

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

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

  475. 

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

  477.                 : "%"REG_a, "memory"

  478.         );

  479. }

  480. 

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

  482.     const int intra= s->mb_intra;

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

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

  485. 

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

  487. 

  488.     __asm__ volatile(

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

  490.         "1:                                     \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  529.             " jb 1b                             \n\t"

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

  531.         : "r"(block+64)

  532.     );

  533. }

  534. 

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

  536.     const int intra= s->mb_intra;

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

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

  539. 

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

  541. 

  542.     __asm__ volatile(

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

  544.         "1:                                     \n\t"

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  583.             " jb 1b                             \n\t"

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

  585.         : "r"(block+64)

  586.           XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",

  587.                             "%xmm4", "%xmm5", "%xmm6", "%xmm7")

  588.     );

  589. }

  590. 

  591. #if HAVE_SSSE3

  592. #define HAVE_SSSE3_BAK

  593. #endif

  594. #undef HAVE_SSSE3

  595. #define HAVE_SSSE3 0

  596. 

  597. #undef HAVE_SSE2

  598. #undef HAVE_MMXEXT

  599. #define HAVE_SSE2 0

  600. #define HAVE_MMXEXT 0

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

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

  603. #include "mpegvideo_mmx_template.c"

  604. 

  605. #undef HAVE_MMXEXT

  606. #define HAVE_MMXEXT 1

  607. #undef RENAME

  608. #undef RENAMEl

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

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

  611. #include "mpegvideo_mmx_template.c"

  612. 

  613. #undef HAVE_SSE2

  614. #define HAVE_SSE2 1

  615. #undef RENAME

  616. #undef RENAMEl

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

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

  619. #include "mpegvideo_mmx_template.c"

  620. 

  621. #ifdef HAVE_SSSE3_BAK

  622. #undef HAVE_SSSE3

  623. #define HAVE_SSSE3 1

  624. #undef RENAME

  625. #undef RENAMEl

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

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

  628. #include "mpegvideo_mmx_template.c"

  629. #endif

  630. 

  631. #endif /* HAVE_INLINE_ASM */

  632. 

  633. void ff_MPV_common_init_mmx(MpegEncContext *s)

  634. {

  635. #if HAVE_INLINE_ASM

  636.     int mm_flags = av_get_cpu_flags();

  637. 

  638.     if (mm_flags & AV_CPU_FLAG_MMX) {

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

  640. 

  641.         s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;

  642.         s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;

  643.         s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;

  644.         s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;

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

  646.             s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;

  647.         s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;

  648. 

  649.         if (mm_flags & AV_CPU_FLAG_SSE2) {

  650.             s->denoise_dct= denoise_dct_sse2;

  651.         } else {

  652.                 s->denoise_dct= denoise_dct_mmx;

  653.         }

  654. 

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

  656. #if HAVE_SSSE3

  657.             if(mm_flags & AV_CPU_FLAG_SSSE3){

  658.                 s->dct_quantize= dct_quantize_SSSE3;

  659.             } else

  660. #endif

  661.             if(mm_flags & AV_CPU_FLAG_SSE2){

  662.                 s->dct_quantize= dct_quantize_SSE2;

  663.             } else if (mm_flags & AV_CPU_FLAG_MMXEXT) {

  664.                 s->dct_quantize= dct_quantize_MMX2;

  665.             } else {

  666.                 s->dct_quantize= dct_quantize_MMX;

  667.             }

  668.         }

  669.     }

  670. #endif /* HAVE_INLINE_ASM */

  671. }