LCOV - code coverage report
Current view: top level - libavcodec/x86 - mpegvideoenc.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 4 31 12.9 %
Date: 2017-10-18 21:45:51 Functions: 1 3 33.3 %

          Line data    Source code
       1             : /*
       2             :  * The simplest mpeg encoder (well, it was the simplest!)
       3             :  * Copyright (c) 2000,2001 Fabrice Bellard
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : #include "libavutil/attributes.h"
      23             : #include "libavutil/cpu.h"
      24             : #include "libavutil/x86/asm.h"
      25             : #include "libavutil/x86/cpu.h"
      26             : #include "libavcodec/avcodec.h"
      27             : #include "libavcodec/dct.h"
      28             : #include "libavcodec/mpegvideo.h"
      29             : 
      30             : /* not permutated inverse zigzag_direct + 1 for MMX quantizer */
      31             : DECLARE_ALIGNED(16, static const uint16_t, inv_zigzag_direct16)[64] = {
      32             :     1,  2,  6,  7,  15, 16, 28, 29,
      33             :     3,  5,  8,  14, 17, 27, 30, 43,
      34             :     4,  9,  13, 18, 26, 31, 42, 44,
      35             :     10, 12, 19, 25, 32, 41, 45, 54,
      36             :     11, 20, 24, 33, 40, 46, 53, 55,
      37             :     21, 23, 34, 39, 47, 52, 56, 61,
      38             :     22, 35, 38, 48, 51, 57, 60, 62,
      39             :     36, 37, 49, 50, 58, 59, 63, 64,
      40             : };
      41             : 
      42             : #if HAVE_6REGS
      43             : 
      44             : #if HAVE_MMX_INLINE
      45             : #define COMPILE_TEMPLATE_MMXEXT 0
      46             : #define COMPILE_TEMPLATE_SSE2   0
      47             : #define COMPILE_TEMPLATE_SSSE3  0
      48             : #define RENAME(a)      a ## _mmx
      49             : #define RENAME_FDCT(a) a ## _mmx
      50             : #include "mpegvideoenc_template.c"
      51             : #endif /* HAVE_MMX_INLINE */
      52             : 
      53             : #if HAVE_MMXEXT_INLINE
      54             : #undef COMPILE_TEMPLATE_SSSE3
      55             : #undef COMPILE_TEMPLATE_SSE2
      56             : #undef COMPILE_TEMPLATE_MMXEXT
      57             : #define COMPILE_TEMPLATE_MMXEXT 1
      58             : #define COMPILE_TEMPLATE_SSE2   0
      59             : #define COMPILE_TEMPLATE_SSSE3  0
      60             : #undef RENAME
      61             : #undef RENAME_FDCT
      62             : #define RENAME(a)      a ## _mmxext
      63             : #define RENAME_FDCT(a) a ## _mmxext
      64             : #include "mpegvideoenc_template.c"
      65             : #endif /* HAVE_MMXEXT_INLINE */
      66             : 
      67             : #if HAVE_SSE2_INLINE
      68             : #undef COMPILE_TEMPLATE_MMXEXT
      69             : #undef COMPILE_TEMPLATE_SSE2
      70             : #undef COMPILE_TEMPLATE_SSSE3
      71             : #define COMPILE_TEMPLATE_MMXEXT 0
      72             : #define COMPILE_TEMPLATE_SSE2   1
      73             : #define COMPILE_TEMPLATE_SSSE3  0
      74             : #undef RENAME
      75             : #undef RENAME_FDCT
      76             : #define RENAME(a)      a ## _sse2
      77             : #define RENAME_FDCT(a) a ## _sse2
      78             : #include "mpegvideoenc_template.c"
      79             : #endif /* HAVE_SSE2_INLINE */
      80             : 
      81             : #if HAVE_SSSE3_INLINE
      82             : #undef COMPILE_TEMPLATE_MMXEXT
      83             : #undef COMPILE_TEMPLATE_SSE2
      84             : #undef COMPILE_TEMPLATE_SSSE3
      85             : #define COMPILE_TEMPLATE_MMXEXT 0
      86             : #define COMPILE_TEMPLATE_SSE2   1
      87             : #define COMPILE_TEMPLATE_SSSE3  1
      88             : #undef RENAME
      89             : #undef RENAME_FDCT
      90             : #define RENAME(a)      a ## _ssse3
      91             : #define RENAME_FDCT(a) a ## _sse2
      92             : #include "mpegvideoenc_template.c"
      93             : #endif /* HAVE_SSSE3_INLINE */
      94             : 
      95             : #endif /* HAVE_6REGS */
      96             : 
      97             : #if HAVE_INLINE_ASM
      98             : #if HAVE_MMX_INLINE
      99           0 : static void  denoise_dct_mmx(MpegEncContext *s, int16_t *block){
     100           0 :     const int intra= s->mb_intra;
     101           0 :     int *sum= s->dct_error_sum[intra];
     102           0 :     uint16_t *offset= s->dct_offset[intra];
     103             : 
     104           0 :     s->dct_count[intra]++;
     105             : 
     106           0 :     __asm__ volatile(
     107             :         "pxor %%mm7, %%mm7                      \n\t"
     108             :         "1:                                     \n\t"
     109             :         "pxor %%mm0, %%mm0                      \n\t"
     110             :         "pxor %%mm1, %%mm1                      \n\t"
     111             :         "movq (%0), %%mm2                       \n\t"
     112             :         "movq 8(%0), %%mm3                      \n\t"
     113             :         "pcmpgtw %%mm2, %%mm0                   \n\t"
     114             :         "pcmpgtw %%mm3, %%mm1                   \n\t"
     115             :         "pxor %%mm0, %%mm2                      \n\t"
     116             :         "pxor %%mm1, %%mm3                      \n\t"
     117             :         "psubw %%mm0, %%mm2                     \n\t"
     118             :         "psubw %%mm1, %%mm3                     \n\t"
     119             :         "movq %%mm2, %%mm4                      \n\t"
     120             :         "movq %%mm3, %%mm5                      \n\t"
     121             :         "psubusw (%2), %%mm2                    \n\t"
     122             :         "psubusw 8(%2), %%mm3                   \n\t"
     123             :         "pxor %%mm0, %%mm2                      \n\t"
     124             :         "pxor %%mm1, %%mm3                      \n\t"
     125             :         "psubw %%mm0, %%mm2                     \n\t"
     126             :         "psubw %%mm1, %%mm3                     \n\t"
     127             :         "movq %%mm2, (%0)                       \n\t"
     128             :         "movq %%mm3, 8(%0)                      \n\t"
     129             :         "movq %%mm4, %%mm2                      \n\t"
     130             :         "movq %%mm5, %%mm3                      \n\t"
     131             :         "punpcklwd %%mm7, %%mm4                 \n\t"
     132             :         "punpckhwd %%mm7, %%mm2                 \n\t"
     133             :         "punpcklwd %%mm7, %%mm5                 \n\t"
     134             :         "punpckhwd %%mm7, %%mm3                 \n\t"
     135             :         "paddd (%1), %%mm4                      \n\t"
     136             :         "paddd 8(%1), %%mm2                     \n\t"
     137             :         "paddd 16(%1), %%mm5                    \n\t"
     138             :         "paddd 24(%1), %%mm3                    \n\t"
     139             :         "movq %%mm4, (%1)                       \n\t"
     140             :         "movq %%mm2, 8(%1)                      \n\t"
     141             :         "movq %%mm5, 16(%1)                     \n\t"
     142             :         "movq %%mm3, 24(%1)                     \n\t"
     143             :         "add $16, %0                            \n\t"
     144             :         "add $32, %1                            \n\t"
     145             :         "add $16, %2                            \n\t"
     146             :         "cmp %3, %0                             \n\t"
     147             :             " jb 1b                             \n\t"
     148             :         : "+r" (block), "+r" (sum), "+r" (offset)
     149           0 :         : "r"(block+64)
     150             :     );
     151           0 : }
     152             : #endif /* HAVE_MMX_INLINE */
     153             : 
     154             : #if HAVE_SSE2_INLINE
     155           0 : static void  denoise_dct_sse2(MpegEncContext *s, int16_t *block){
     156           0 :     const int intra= s->mb_intra;
     157           0 :     int *sum= s->dct_error_sum[intra];
     158           0 :     uint16_t *offset= s->dct_offset[intra];
     159             : 
     160           0 :     s->dct_count[intra]++;
     161             : 
     162           0 :     __asm__ volatile(
     163             :         "pxor %%xmm7, %%xmm7                    \n\t"
     164             :         "1:                                     \n\t"
     165             :         "pxor %%xmm0, %%xmm0                    \n\t"
     166             :         "pxor %%xmm1, %%xmm1                    \n\t"
     167             :         "movdqa (%0), %%xmm2                    \n\t"
     168             :         "movdqa 16(%0), %%xmm3                  \n\t"
     169             :         "pcmpgtw %%xmm2, %%xmm0                 \n\t"
     170             :         "pcmpgtw %%xmm3, %%xmm1                 \n\t"
     171             :         "pxor %%xmm0, %%xmm2                    \n\t"
     172             :         "pxor %%xmm1, %%xmm3                    \n\t"
     173             :         "psubw %%xmm0, %%xmm2                   \n\t"
     174             :         "psubw %%xmm1, %%xmm3                   \n\t"
     175             :         "movdqa %%xmm2, %%xmm4                  \n\t"
     176             :         "movdqa %%xmm3, %%xmm5                  \n\t"
     177             :         "psubusw (%2), %%xmm2                   \n\t"
     178             :         "psubusw 16(%2), %%xmm3                 \n\t"
     179             :         "pxor %%xmm0, %%xmm2                    \n\t"
     180             :         "pxor %%xmm1, %%xmm3                    \n\t"
     181             :         "psubw %%xmm0, %%xmm2                   \n\t"
     182             :         "psubw %%xmm1, %%xmm3                   \n\t"
     183             :         "movdqa %%xmm2, (%0)                    \n\t"
     184             :         "movdqa %%xmm3, 16(%0)                  \n\t"
     185             :         "movdqa %%xmm4, %%xmm6                  \n\t"
     186             :         "movdqa %%xmm5, %%xmm0                  \n\t"
     187             :         "punpcklwd %%xmm7, %%xmm4               \n\t"
     188             :         "punpckhwd %%xmm7, %%xmm6               \n\t"
     189             :         "punpcklwd %%xmm7, %%xmm5               \n\t"
     190             :         "punpckhwd %%xmm7, %%xmm0               \n\t"
     191             :         "paddd (%1), %%xmm4                     \n\t"
     192             :         "paddd 16(%1), %%xmm6                   \n\t"
     193             :         "paddd 32(%1), %%xmm5                   \n\t"
     194             :         "paddd 48(%1), %%xmm0                   \n\t"
     195             :         "movdqa %%xmm4, (%1)                    \n\t"
     196             :         "movdqa %%xmm6, 16(%1)                  \n\t"
     197             :         "movdqa %%xmm5, 32(%1)                  \n\t"
     198             :         "movdqa %%xmm0, 48(%1)                  \n\t"
     199             :         "add $32, %0                            \n\t"
     200             :         "add $64, %1                            \n\t"
     201             :         "add $32, %2                            \n\t"
     202             :         "cmp %3, %0                             \n\t"
     203             :             " jb 1b                             \n\t"
     204             :         : "+r" (block), "+r" (sum), "+r" (offset)
     205           0 :         : "r"(block+64)
     206             :           XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
     207             :                             "%xmm4", "%xmm5", "%xmm6", "%xmm7")
     208             :     );
     209           0 : }
     210             : #endif /* HAVE_SSE2_INLINE */
     211             : #endif /* HAVE_INLINE_ASM */
     212             : 
     213         256 : av_cold void ff_dct_encode_init_x86(MpegEncContext *s)
     214             : {
     215         256 :     const int dct_algo = s->avctx->dct_algo;
     216             : 
     217         256 :     if (dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX) {
     218             : #if HAVE_MMX_INLINE
     219           0 :         int cpu_flags = av_get_cpu_flags();
     220           0 :         if (INLINE_MMX(cpu_flags)) {
     221             : #if HAVE_6REGS
     222           0 :             s->dct_quantize = dct_quantize_mmx;
     223             : #endif
     224           0 :             s->denoise_dct  = denoise_dct_mmx;
     225             :         }
     226             : #endif
     227             : #if HAVE_6REGS && HAVE_MMXEXT_INLINE
     228           0 :         if (INLINE_MMXEXT(cpu_flags))
     229           0 :             s->dct_quantize = dct_quantize_mmxext;
     230             : #endif
     231             : #if HAVE_SSE2_INLINE
     232           0 :         if (INLINE_SSE2(cpu_flags)) {
     233             : #if HAVE_6REGS
     234           0 :             s->dct_quantize = dct_quantize_sse2;
     235             : #endif
     236           0 :             s->denoise_dct  = denoise_dct_sse2;
     237             :         }
     238             : #endif
     239             : #if HAVE_6REGS && HAVE_SSSE3_INLINE
     240           0 :         if (INLINE_SSSE3(cpu_flags))
     241           0 :             s->dct_quantize = dct_quantize_ssse3;
     242             : #endif
     243             :     }
     244         256 : }

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