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FFmpeg/libavcodec/x86/h264dsp_mmx.c

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  1. /*

  2.  * Copyright (c) 2004-2005 Michael Niedermayer, Loren Merritt

  3.  *

  4.  * This file is part of Libav.

  5.  *

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

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

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

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

  10.  *

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

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

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

  14.  * Lesser General Public License for more details.

  15.  *

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

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

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

  19.  */

  20. 

  21. #include "libavutil/cpu.h"

  22. #include "libavutil/x86_cpu.h"

  23. #include "libavcodec/h264dsp.h"

  24. #include "dsputil_mmx.h"

  25. 

  26. DECLARE_ALIGNED(8, static const uint64_t, ff_pb_3_1  ) = 0x0103010301030103ULL;

  27. 

  28. /***********************************/

  29. /* IDCT */

  30. 

  31. void ff_h264_idct_add_mmx     (uint8_t *dst, int16_t *block, int stride);

  32. void ff_h264_idct8_add_mmx    (uint8_t *dst, int16_t *block, int stride);

  33. void ff_h264_idct8_add_sse2   (uint8_t *dst, int16_t *block, int stride);

  34. void ff_h264_idct_dc_add_mmx2 (uint8_t *dst, int16_t *block, int stride);

  35. void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride);

  36. 

  37. void ff_h264_idct_add16_mmx      (uint8_t *dst, const int *block_offset,

  38.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  39. void ff_h264_idct8_add4_mmx      (uint8_t *dst, const int *block_offset,

  40.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  41. void ff_h264_idct_add16_mmx2     (uint8_t *dst, const int *block_offset,

  42.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  43. void ff_h264_idct_add16intra_mmx (uint8_t *dst, const int *block_offset,

  44.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  45. void ff_h264_idct_add16intra_mmx2(uint8_t *dst, const int *block_offset,

  46.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  47. void ff_h264_idct8_add4_mmx2     (uint8_t *dst, const int *block_offset,

  48.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  49. void ff_h264_idct8_add4_sse2     (uint8_t *dst, const int *block_offset,

  50.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  51. void ff_h264_idct_add8_mmx       (uint8_t **dest, const int *block_offset,

  52.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  53. void ff_h264_idct_add8_mmx2      (uint8_t **dest, const int *block_offset,

  54.                                   DCTELEM *block, int stride, const uint8_t nnzc[6*8]);

  55. 

  56. void ff_h264_idct_add16_sse2     (uint8_t *dst, const int *block_offset, DCTELEM *block,

  57.                                   int stride, const uint8_t nnzc[6*8]);

  58. void ff_h264_idct_add16intra_sse2(uint8_t *dst, const int *block_offset, DCTELEM *block,

  59.                                   int stride, const uint8_t nnzc[6*8]);

  60. void ff_h264_idct_add8_sse2      (uint8_t **dest, const int *block_offset, DCTELEM *block,

  61.                                   int stride, const uint8_t nnzc[6*8]);

  62. void ff_h264_luma_dc_dequant_idct_mmx (DCTELEM *output, DCTELEM *input, int qmul);

  63. void ff_h264_luma_dc_dequant_idct_sse2(DCTELEM *output, DCTELEM *input, int qmul);

  64. 

  65. /***********************************/

  66. /* deblocking */

  67. 

  68. #define h264_loop_filter_strength_iteration_mmx2(bS, nz, ref, mv, bidir, edges, step, mask_mv, dir, d_idx, mask_dir) \

  69.     do { \

  70.         x86_reg b_idx; \

  71.         mask_mv <<= 3; \

  72.         for( b_idx=0; b_idx<edges; b_idx+=step ) { \

  73.             if (!mask_dir) \

  74.             __asm__ volatile( \

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

  76.                     :: \

  77.             ); \

  78.             if(!(mask_mv & b_idx)) { \

  79.                 if(bidir) { \

  80.                     __asm__ volatile( \

  81.                         "movd         %a3(%0,%2), %%mm2 \n" \

  82.                         "punpckldq    %a4(%0,%2), %%mm2 \n" /* { ref0[bn], ref1[bn] } */ \

  83.                         "pshufw $0x44, 12(%0,%2), %%mm0 \n" /* { ref0[b], ref0[b] } */ \

  84.                         "pshufw $0x44, 52(%0,%2), %%mm1 \n" /* { ref1[b], ref1[b] } */ \

  85.                         "pshufw $0x4E, %%mm2, %%mm3 \n" \

  86.                         "psubb         %%mm2, %%mm0 \n" /* { ref0[b]!=ref0[bn], ref0[b]!=ref1[bn] } */ \

  87.                         "psubb         %%mm3, %%mm1 \n" /* { ref1[b]!=ref1[bn], ref1[b]!=ref0[bn] } */ \

  88.  \

  89.                         "por           %%mm1, %%mm0 \n" \

  90.                         "movq   %a5(%1,%2,4), %%mm1 \n" \

  91.                         "movq   %a6(%1,%2,4), %%mm2 \n" \

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

  93.                         "movq          %%mm2, %%mm4 \n" \

  94.                         "psubw   48(%1,%2,4), %%mm1 \n" \

  95.                         "psubw   56(%1,%2,4), %%mm2 \n" \

  96.                         "psubw  208(%1,%2,4), %%mm3 \n" \

  97.                         "psubw  216(%1,%2,4), %%mm4 \n" \

  98.                         "packsswb      %%mm2, %%mm1 \n" \

  99.                         "packsswb      %%mm4, %%mm3 \n" \

  100.                         "paddb         %%mm6, %%mm1 \n" \

  101.                         "paddb         %%mm6, %%mm3 \n" \

  102.                         "psubusb       %%mm5, %%mm1 \n" /* abs(mv[b] - mv[bn]) >= limit */ \

  103.                         "psubusb       %%mm5, %%mm3 \n" \

  104.                         "packsswb      %%mm3, %%mm1 \n" \

  105.  \

  106.                         "por           %%mm1, %%mm0 \n" \

  107.                         "movq   %a7(%1,%2,4), %%mm1 \n" \

  108.                         "movq   %a8(%1,%2,4), %%mm2 \n" \

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

  110.                         "movq          %%mm2, %%mm4 \n" \

  111.                         "psubw   48(%1,%2,4), %%mm1 \n" \

  112.                         "psubw   56(%1,%2,4), %%mm2 \n" \

  113.                         "psubw  208(%1,%2,4), %%mm3 \n" \

  114.                         "psubw  216(%1,%2,4), %%mm4 \n" \

  115.                         "packsswb      %%mm2, %%mm1 \n" \

  116.                         "packsswb      %%mm4, %%mm3 \n" \

  117.                         "paddb         %%mm6, %%mm1 \n" \

  118.                         "paddb         %%mm6, %%mm3 \n" \

  119.                         "psubusb       %%mm5, %%mm1 \n" /* abs(mv[b] - mv[bn]) >= limit */ \

  120.                         "psubusb       %%mm5, %%mm3 \n" \

  121.                         "packsswb      %%mm3, %%mm1 \n" \

  122.  \

  123.                         "pshufw $0x4E, %%mm1, %%mm1 \n" \

  124.                         "por           %%mm1, %%mm0 \n" \

  125.                         "pshufw $0x4E, %%mm0, %%mm1 \n" \

  126.                         "pminub        %%mm1, %%mm0 \n" \

  127.                         ::"r"(ref), \

  128.                           "r"(mv), \

  129.                           "r"(b_idx), \

  130.                           "i"(d_idx+12), \

  131.                           "i"(d_idx+52), \

  132.                           "i"(d_idx*4+48), \

  133.                           "i"(d_idx*4+56), \

  134.                           "i"(d_idx*4+208), \

  135.                           "i"(d_idx*4+216) \

  136.                     ); \

  137.                 } else { \

  138.                     __asm__ volatile( \

  139.                         "movd   12(%0,%2), %%mm0 \n" \

  140.                         "psubb %a3(%0,%2), %%mm0 \n" /* ref[b] != ref[bn] */ \

  141.                         "movq   48(%1,%2,4), %%mm1 \n" \

  142.                         "movq   56(%1,%2,4), %%mm2 \n" \

  143.                         "psubw %a4(%1,%2,4), %%mm1 \n" \

  144.                         "psubw %a5(%1,%2,4), %%mm2 \n" \

  145.                         "packsswb   %%mm2, %%mm1 \n" \

  146.                         "paddb      %%mm6, %%mm1 \n" \

  147.                         "psubusb    %%mm5, %%mm1 \n" /* abs(mv[b] - mv[bn]) >= limit */ \

  148.                         "packsswb   %%mm1, %%mm1 \n" \

  149.                         "por        %%mm1, %%mm0 \n" \

  150.                         ::"r"(ref), \

  151.                           "r"(mv), \

  152.                           "r"(b_idx), \

  153.                           "i"(d_idx+12), \

  154.                           "i"(d_idx*4+48), \

  155.                           "i"(d_idx*4+56) \

  156.                     ); \

  157.                 } \

  158.             } \

  159.             __asm__ volatile( \

  160.                 "movd 12(%0,%1), %%mm1 \n" \

  161.                 "por %a2(%0,%1), %%mm1 \n" /* nnz[b] || nnz[bn] */ \

  162.                 ::"r"(nnz), \

  163.                   "r"(b_idx), \

  164.                   "i"(d_idx+12) \

  165.             ); \

  166.             __asm__ volatile( \

  167.                 "pminub    %%mm7, %%mm1 \n" \

  168.                 "pminub    %%mm7, %%mm0 \n" \

  169.                 "psllw        $1, %%mm1 \n" \

  170.                 "pxor      %%mm2, %%mm2 \n" \

  171.                 "pmaxub    %%mm0, %%mm1 \n" \

  172.                 "punpcklbw %%mm2, %%mm1 \n" \

  173.                 "movq      %%mm1, %a1(%0,%2) \n" \

  174.                 ::"r"(bS), \

  175.                   "i"(32*dir), \

  176.                   "r"(b_idx) \

  177.                 :"memory" \

  178.             ); \

  179.         } \

  180.     } while (0)

  181. 

  182. static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],

  183.                                             int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field ) {

  184.     __asm__ volatile(

  185.         "movq %0, %%mm7 \n"

  186.         "movq %1, %%mm6 \n"

  187.         ::"m"(ff_pb_1), "m"(ff_pb_3)

  188.     );

  189.     if(field)

  190.         __asm__ volatile(

  191.             "movq %0, %%mm6 \n"

  192.             ::"m"(ff_pb_3_1)

  193.         );

  194.     __asm__ volatile(

  195.         "movq  %%mm6, %%mm5 \n"

  196.         "paddb %%mm5, %%mm5 \n"

  197.     :);

  198. 

  199.     // could do a special case for dir==0 && edges==1, but it only reduces the

  200.     // average filter time by 1.2%

  201.     step  <<= 3;

  202.     edges <<= 3;

  203.     h264_loop_filter_strength_iteration_mmx2(bS, nnz, ref, mv, bidir, edges, step, mask_mv1, 1, -8,  0);

  204.     h264_loop_filter_strength_iteration_mmx2(bS, nnz, ref, mv, bidir,    32,    8, mask_mv0, 0, -1, -1);

  205. 

  206.     __asm__ volatile(

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

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

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

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

  211.         TRANSPOSE4(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4)

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

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

  214.         "movq %%mm4, 16(%0) \n\t"

  215.         "movq %%mm2, 24(%0) \n\t"

  216.         ::"r"(bS[0])

  217.         :"memory"

  218.     );

  219. }

  220. 

  221. #define LF_FUNC(DIR, TYPE, OPT) \

  222. void ff_x264_deblock_ ## DIR ## _ ## TYPE ## _ ## OPT (uint8_t *pix, int stride, \

  223.                                                int alpha, int beta, int8_t *tc0);

  224. #define LF_IFUNC(DIR, TYPE, OPT) \

  225. void ff_x264_deblock_ ## DIR ## _ ## TYPE ## _ ## OPT (uint8_t *pix, int stride, \

  226.                                                int alpha, int beta);

  227. 

  228. LF_FUNC (h,  chroma,       mmxext)

  229. LF_IFUNC(h,  chroma_intra, mmxext)

  230. LF_FUNC (v,  chroma,       mmxext)

  231. LF_IFUNC(v,  chroma_intra, mmxext)

  232. 

  233. LF_FUNC (h,  luma,         mmxext)

  234. LF_IFUNC(h,  luma_intra,   mmxext)

  235. #if HAVE_YASM && ARCH_X86_32

  236. LF_FUNC (v8, luma,         mmxext)

  237. static void ff_x264_deblock_v_luma_mmxext(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)

  238. {

  239.     if((tc0[0] & tc0[1]) >= 0)

  240.         ff_x264_deblock_v8_luma_mmxext(pix+0, stride, alpha, beta, tc0);

  241.     if((tc0[2] & tc0[3]) >= 0)

  242.         ff_x264_deblock_v8_luma_mmxext(pix+8, stride, alpha, beta, tc0+2);

  243. }

  244. LF_IFUNC(v8, luma_intra,   mmxext)

  245. static void ff_x264_deblock_v_luma_intra_mmxext(uint8_t *pix, int stride, int alpha, int beta)

  246. {

  247.     ff_x264_deblock_v8_luma_intra_mmxext(pix+0, stride, alpha, beta);

  248.     ff_x264_deblock_v8_luma_intra_mmxext(pix+8, stride, alpha, beta);

  249. }

  250. #endif

  251. 

  252. LF_FUNC (h,  luma,         sse2)

  253. LF_IFUNC(h,  luma_intra,   sse2)

  254. LF_FUNC (v,  luma,         sse2)

  255. LF_IFUNC(v,  luma_intra,   sse2)

  256. 

  257. /***********************************/

  258. /* weighted prediction */

  259. 

  260. #define H264_WEIGHT(W, H, OPT) \

  261. void ff_h264_weight_ ## W ## x ## H ## _ ## OPT(uint8_t *dst, \

  262.     int stride, int log2_denom, int weight, int offset);

  263. 

  264. #define H264_BIWEIGHT(W, H, OPT) \

  265. void ff_h264_biweight_ ## W ## x ## H ## _ ## OPT(uint8_t *dst, \

  266.     uint8_t *src, int stride, int log2_denom, int weightd, \

  267.     int weights, int offset);

  268. 

  269. #define H264_BIWEIGHT_MMX(W,H) \

  270. H264_WEIGHT  (W, H, mmx2) \

  271. H264_BIWEIGHT(W, H, mmx2)

  272. 

  273. #define H264_BIWEIGHT_MMX_SSE(W,H) \

  274. H264_BIWEIGHT_MMX(W, H) \

  275. H264_WEIGHT      (W, H, sse2) \

  276. H264_BIWEIGHT    (W, H, sse2) \

  277. H264_BIWEIGHT    (W, H, ssse3)

  278. 

  279. H264_BIWEIGHT_MMX_SSE(16, 16)

  280. H264_BIWEIGHT_MMX_SSE(16,  8)

  281. H264_BIWEIGHT_MMX_SSE( 8, 16)

  282. H264_BIWEIGHT_MMX_SSE( 8,  8)

  283. H264_BIWEIGHT_MMX_SSE( 8,  4)

  284. H264_BIWEIGHT_MMX    ( 4,  8)

  285. H264_BIWEIGHT_MMX    ( 4,  4)

  286. H264_BIWEIGHT_MMX    ( 4,  2)

  287. 

  288. void ff_h264dsp_init_x86(H264DSPContext *c)

  289. {

  290.     int mm_flags = av_get_cpu_flags();

  291. 

  292.     if (mm_flags & AV_CPU_FLAG_MMX2) {

  293.         c->h264_loop_filter_strength= h264_loop_filter_strength_mmx2;

  294.     }

  295. #if HAVE_YASM

  296.     if (mm_flags & AV_CPU_FLAG_MMX) {

  297.         c->h264_idct_dc_add=

  298.         c->h264_idct_add= ff_h264_idct_add_mmx;

  299.         c->h264_idct8_dc_add=

  300.         c->h264_idct8_add= ff_h264_idct8_add_mmx;

  301. 

  302.         c->h264_idct_add16     = ff_h264_idct_add16_mmx;

  303.         c->h264_idct8_add4     = ff_h264_idct8_add4_mmx;

  304.         c->h264_idct_add8      = ff_h264_idct_add8_mmx;

  305.         c->h264_idct_add16intra= ff_h264_idct_add16intra_mmx;

  306.         c->h264_luma_dc_dequant_idct= ff_h264_luma_dc_dequant_idct_mmx;

  307. 

  308.         if (mm_flags & AV_CPU_FLAG_MMX2) {

  309.             c->h264_idct_dc_add= ff_h264_idct_dc_add_mmx2;

  310.             c->h264_idct8_dc_add= ff_h264_idct8_dc_add_mmx2;

  311.             c->h264_idct_add16     = ff_h264_idct_add16_mmx2;

  312.             c->h264_idct8_add4     = ff_h264_idct8_add4_mmx2;

  313.             c->h264_idct_add8      = ff_h264_idct_add8_mmx2;

  314.             c->h264_idct_add16intra= ff_h264_idct_add16intra_mmx2;

  315. 

  316.             c->h264_v_loop_filter_chroma= ff_x264_deblock_v_chroma_mmxext;

  317.             c->h264_h_loop_filter_chroma= ff_x264_deblock_h_chroma_mmxext;

  318.             c->h264_v_loop_filter_chroma_intra= ff_x264_deblock_v_chroma_intra_mmxext;

  319.             c->h264_h_loop_filter_chroma_intra= ff_x264_deblock_h_chroma_intra_mmxext;

  320. #if ARCH_X86_32

  321.             c->h264_v_loop_filter_luma= ff_x264_deblock_v_luma_mmxext;

  322.             c->h264_h_loop_filter_luma= ff_x264_deblock_h_luma_mmxext;

  323.             c->h264_v_loop_filter_luma_intra = ff_x264_deblock_v_luma_intra_mmxext;

  324.             c->h264_h_loop_filter_luma_intra = ff_x264_deblock_h_luma_intra_mmxext;

  325. #endif

  326.             c->weight_h264_pixels_tab[0]= ff_h264_weight_16x16_mmx2;

  327.             c->weight_h264_pixels_tab[1]= ff_h264_weight_16x8_mmx2;

  328.             c->weight_h264_pixels_tab[2]= ff_h264_weight_8x16_mmx2;

  329.             c->weight_h264_pixels_tab[3]= ff_h264_weight_8x8_mmx2;

  330.             c->weight_h264_pixels_tab[4]= ff_h264_weight_8x4_mmx2;

  331.             c->weight_h264_pixels_tab[5]= ff_h264_weight_4x8_mmx2;

  332.             c->weight_h264_pixels_tab[6]= ff_h264_weight_4x4_mmx2;

  333.             c->weight_h264_pixels_tab[7]= ff_h264_weight_4x2_mmx2;

  334. 

  335.             c->biweight_h264_pixels_tab[0]= ff_h264_biweight_16x16_mmx2;

  336.             c->biweight_h264_pixels_tab[1]= ff_h264_biweight_16x8_mmx2;

  337.             c->biweight_h264_pixels_tab[2]= ff_h264_biweight_8x16_mmx2;

  338.             c->biweight_h264_pixels_tab[3]= ff_h264_biweight_8x8_mmx2;

  339.             c->biweight_h264_pixels_tab[4]= ff_h264_biweight_8x4_mmx2;

  340.             c->biweight_h264_pixels_tab[5]= ff_h264_biweight_4x8_mmx2;

  341.             c->biweight_h264_pixels_tab[6]= ff_h264_biweight_4x4_mmx2;

  342.             c->biweight_h264_pixels_tab[7]= ff_h264_biweight_4x2_mmx2;

  343. 

  344.             if (mm_flags&AV_CPU_FLAG_SSE2) {

  345.                 c->h264_idct8_add = ff_h264_idct8_add_sse2;

  346.                 c->h264_idct8_add4= ff_h264_idct8_add4_sse2;

  347.                 c->h264_luma_dc_dequant_idct= ff_h264_luma_dc_dequant_idct_sse2;

  348. 

  349.                 c->weight_h264_pixels_tab[0]= ff_h264_weight_16x16_sse2;

  350.                 c->weight_h264_pixels_tab[1]= ff_h264_weight_16x8_sse2;

  351.                 c->weight_h264_pixels_tab[2]= ff_h264_weight_8x16_sse2;

  352.                 c->weight_h264_pixels_tab[3]= ff_h264_weight_8x8_sse2;

  353.                 c->weight_h264_pixels_tab[4]= ff_h264_weight_8x4_sse2;

  354. 

  355.                 c->biweight_h264_pixels_tab[0]= ff_h264_biweight_16x16_sse2;

  356.                 c->biweight_h264_pixels_tab[1]= ff_h264_biweight_16x8_sse2;

  357.                 c->biweight_h264_pixels_tab[2]= ff_h264_biweight_8x16_sse2;

  358.                 c->biweight_h264_pixels_tab[3]= ff_h264_biweight_8x8_sse2;

  359.                 c->biweight_h264_pixels_tab[4]= ff_h264_biweight_8x4_sse2;

  360. 

  361. #if HAVE_ALIGNED_STACK

  362.                 c->h264_v_loop_filter_luma = ff_x264_deblock_v_luma_sse2;

  363.                 c->h264_h_loop_filter_luma = ff_x264_deblock_h_luma_sse2;

  364.                 c->h264_v_loop_filter_luma_intra = ff_x264_deblock_v_luma_intra_sse2;

  365.                 c->h264_h_loop_filter_luma_intra = ff_x264_deblock_h_luma_intra_sse2;

  366. #endif

  367. 

  368.                 c->h264_idct_add16 = ff_h264_idct_add16_sse2;

  369.                 c->h264_idct_add8  = ff_h264_idct_add8_sse2;

  370.                 c->h264_idct_add16intra = ff_h264_idct_add16intra_sse2;

  371.             }

  372.             if (mm_flags&AV_CPU_FLAG_SSSE3) {

  373.                 c->biweight_h264_pixels_tab[0]= ff_h264_biweight_16x16_ssse3;

  374.                 c->biweight_h264_pixels_tab[1]= ff_h264_biweight_16x8_ssse3;

  375.                 c->biweight_h264_pixels_tab[2]= ff_h264_biweight_8x16_ssse3;

  376.                 c->biweight_h264_pixels_tab[3]= ff_h264_biweight_8x8_ssse3;

  377.                 c->biweight_h264_pixels_tab[4]= ff_h264_biweight_8x4_ssse3;

  378.             }

  379.         }

  380.     }

  381. #endif

  382. }