LCOV - code coverage report
Current view: top level - libavcodec/x86 - videodsp_init.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 53 54 98.1 %
Date: 2017-12-15 02:19:58 Functions: 4 4 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (C) 2002-2012 Michael Niedermayer
       3             :  * Copyright (C) 2012 Ronald S. Bultje
       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 "config.h"
      23             : #include "libavutil/attributes.h"
      24             : #include "libavutil/avassert.h"
      25             : #include "libavutil/common.h"
      26             : #include "libavutil/cpu.h"
      27             : #include "libavutil/mem.h"
      28             : #include "libavutil/x86/asm.h"
      29             : #include "libavutil/x86/cpu.h"
      30             : #include "libavcodec/videodsp.h"
      31             : 
      32             : #if HAVE_X86ASM
      33             : typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
      34             :                                 const uint8_t *src, x86_reg src_stride,
      35             :                                 x86_reg start_y, x86_reg end_y, x86_reg bh);
      36             : typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
      37             :                                 const uint8_t *src, x86_reg src_stride,
      38             :                                 x86_reg start_y, x86_reg end_y, x86_reg bh,
      39             :                                 x86_reg w);
      40             : 
      41             : extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
      42             : extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
      43             : extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
      44             : extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
      45             : extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
      46             : extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
      47             : extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
      48             : extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
      49             : extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
      50             : extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
      51             : extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
      52             : extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
      53             : extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
      54             : extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
      55             : extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
      56             : extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
      57             : extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
      58             : extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
      59             : extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
      60             : extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
      61             : extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
      62             : extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
      63             : #if ARCH_X86_32
      64             : static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
      65             :     &ff_emu_edge_vfix1_mmx,  &ff_emu_edge_vfix2_mmx,  &ff_emu_edge_vfix3_mmx,
      66             :     &ff_emu_edge_vfix4_mmx,  &ff_emu_edge_vfix5_mmx,  &ff_emu_edge_vfix6_mmx,
      67             :     &ff_emu_edge_vfix7_mmx,  &ff_emu_edge_vfix8_mmx,  &ff_emu_edge_vfix9_mmx,
      68             :     &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
      69             :     &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
      70             :     &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
      71             :     &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
      72             :     &ff_emu_edge_vfix22_mmx
      73             : };
      74             : #endif
      75             : extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
      76             : extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
      77             : extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
      78             : extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
      79             : extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
      80             : extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
      81             : extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
      82             : extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
      83             : static emu_edge_vfix_func * const vfixtbl_sse[22] = {
      84             :     ff_emu_edge_vfix1_mmx,  ff_emu_edge_vfix2_mmx,  ff_emu_edge_vfix3_mmx,
      85             :     ff_emu_edge_vfix4_mmx,  ff_emu_edge_vfix5_mmx,  ff_emu_edge_vfix6_mmx,
      86             :     ff_emu_edge_vfix7_mmx,  ff_emu_edge_vfix8_mmx,  ff_emu_edge_vfix9_mmx,
      87             :     ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
      88             :     ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
      89             :     ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
      90             :     ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
      91             :     ff_emu_edge_vfix22_sse
      92             : };
      93             : extern emu_edge_vvar_func ff_emu_edge_vvar_sse;
      94             : 
      95             : typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
      96             :                                 x86_reg start_x, x86_reg bh);
      97             : typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
      98             :                                 x86_reg start_x, x86_reg n_words, x86_reg bh);
      99             : 
     100             : extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
     101             : extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
     102             : extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
     103             : extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
     104             : extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
     105             : extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
     106             : extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
     107             : extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
     108             : extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
     109             : extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
     110             : extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
     111             : #if ARCH_X86_32
     112             : static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
     113             :     ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
     114             :     ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
     115             :     ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
     116             :     ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
     117             : };
     118             : #endif
     119             : extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
     120             : extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
     121             : extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
     122             : extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
     123             : extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
     124             : static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
     125             :     ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
     126             :     ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
     127             :     ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
     128             :     ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
     129             : };
     130             : extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
     131             : #if HAVE_AVX2_EXTERNAL
     132             : extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
     133             : extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
     134             : extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
     135             : extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
     136             : extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
     137             : extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
     138             : extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
     139             : extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
     140             : static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
     141             :     ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
     142             :     ff_emu_edge_hfix8_avx2,  ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
     143             :     ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
     144             :     ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
     145             : };
     146             : extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
     147             : #endif
     148             : 
     149      173355 : static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
     150             :                                               ptrdiff_t dst_stride,
     151             :                                               ptrdiff_t src_stride,
     152             :                                               x86_reg block_w, x86_reg block_h,
     153             :                                               x86_reg src_x, x86_reg src_y,
     154             :                                               x86_reg w, x86_reg h,
     155             :                                               emu_edge_vfix_func * const *vfix_tbl,
     156             :                                               emu_edge_vvar_func *v_extend_var,
     157             :                                               emu_edge_hfix_func * const *hfix_tbl,
     158             :                                               emu_edge_hvar_func *h_extend_var)
     159             : {
     160      173355 :     x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
     161             : 
     162      173355 :     if (!w || !h)
     163           0 :         return;
     164             : 
     165             :     av_assert2(block_w <= FFABS(dst_stride));
     166             : 
     167      173355 :     if (src_y >= h) {
     168         675 :         src -= src_y*src_stride;
     169         675 :         src_y_add = h - 1;
     170         675 :         src_y     = h - 1;
     171      172680 :     } else if (src_y <= -block_h) {
     172         397 :         src -= src_y*src_stride;
     173         397 :         src_y_add = 1 - block_h;
     174         397 :         src_y     = 1 - block_h;
     175             :     }
     176      173355 :     if (src_x >= w) {
     177         533 :         src   += w - 1 - src_x;
     178         533 :         src_x  = w - 1;
     179      172822 :     } else if (src_x <= -block_w) {
     180         408 :         src   += 1 - block_w - src_x;
     181         408 :         src_x  = 1 - block_w;
     182             :     }
     183             : 
     184      173355 :     start_y = FFMAX(0, -src_y);
     185      173355 :     start_x = FFMAX(0, -src_x);
     186      173355 :     end_y   = FFMIN(block_h, h-src_y);
     187      173355 :     end_x   = FFMIN(block_w, w-src_x);
     188             :     av_assert2(start_x < end_x && block_w > 0);
     189             :     av_assert2(start_y < end_y && block_h > 0);
     190             : 
     191             :     // fill in the to-be-copied part plus all above/below
     192      173355 :     src += (src_y_add + start_y) * src_stride + start_x;
     193      173355 :     w = end_x - start_x;
     194      173355 :     if (w <= 22) {
     195      172857 :         vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
     196             :                         start_y, end_y, block_h);
     197             :     } else {
     198         498 :         v_extend_var(dst + start_x, dst_stride, src, src_stride,
     199             :                      start_y, end_y, block_h, w);
     200             :     }
     201             : 
     202             :     // fill left
     203      173355 :     if (start_x) {
     204       20036 :         if (start_x <= 22) {
     205       19397 :             hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
     206             :         } else {
     207         639 :             h_extend_var(dst, dst_stride,
     208         639 :                          start_x, (start_x + 1) >> 1, block_h);
     209             :         }
     210             :     }
     211             : 
     212             :     // fill right
     213      173355 :     p = block_w - end_x;
     214      173355 :     if (p) {
     215       53932 :         if (p <= 22) {
     216      105362 :             hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
     217       52681 :                                    -!(p & 1), block_h);
     218             :         } else {
     219        2502 :             h_extend_var(dst + end_x - (p & 1), dst_stride,
     220        2502 :                          -!(p & 1), (p + 1) >> 1, block_h);
     221             :         }
     222             :     }
     223             : }
     224             : 
     225             : #if ARCH_X86_32
     226             : static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src,
     227             :                                              ptrdiff_t buf_stride,
     228             :                                              ptrdiff_t src_stride,
     229             :                                              int block_w, int block_h,
     230             :                                              int src_x, int src_y, int w, int h)
     231             : {
     232             :     emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
     233             :                      src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
     234             :                      hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
     235             : }
     236             : 
     237             : static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
     238             :                                              ptrdiff_t buf_stride,
     239             :                                              ptrdiff_t src_stride,
     240             :                                              int block_w, int block_h,
     241             :                                              int src_x, int src_y, int w, int h)
     242             : {
     243             :     emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
     244             :                      src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
     245             :                      hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
     246             : }
     247             : #endif
     248             : 
     249        1440 : static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src,
     250             :                                               ptrdiff_t buf_stride,
     251             :                                               ptrdiff_t src_stride,
     252             :                                               int block_w, int block_h,
     253             :                                               int src_x, int src_y, int w,
     254             :                                               int h)
     255             : {
     256        1440 :     emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
     257             :                      src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
     258             :                      hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
     259        1440 : }
     260             : 
     261             : #if HAVE_AVX2_EXTERNAL
     262      171915 : static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src,
     263             :                                               ptrdiff_t buf_stride,
     264             :                                               ptrdiff_t src_stride,
     265             :                                               int block_w, int block_h,
     266             :                                               int src_x, int src_y, int w,
     267             :                                               int h)
     268             : {
     269      171915 :     emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
     270             :                      src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
     271             :                      hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
     272      171915 : }
     273             : #endif /* HAVE_AVX2_EXTERNAL */
     274             : #endif /* HAVE_X86ASM */
     275             : 
     276             : void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
     277             : void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);
     278             : 
     279        2288 : av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
     280             : {
     281             : #if HAVE_X86ASM
     282        2288 :     int cpu_flags = av_get_cpu_flags();
     283             : 
     284             : #if ARCH_X86_32
     285             :     if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) {
     286             :         ctx->emulated_edge_mc = emulated_edge_mc_mmx;
     287             :     }
     288             :     if (EXTERNAL_AMD3DNOW(cpu_flags)) {
     289             :         ctx->prefetch = ff_prefetch_3dnow;
     290             :     }
     291             : #endif /* ARCH_X86_32 */
     292        2288 :     if (EXTERNAL_MMXEXT(cpu_flags)) {
     293         161 :         ctx->prefetch = ff_prefetch_mmxext;
     294             :     }
     295             : #if ARCH_X86_32
     296             :     if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) {
     297             :         ctx->emulated_edge_mc = emulated_edge_mc_sse;
     298             :     }
     299             : #endif /* ARCH_X86_32 */
     300        2288 :     if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
     301         156 :         ctx->emulated_edge_mc = emulated_edge_mc_sse2;
     302             :     }
     303             : #if HAVE_AVX2_EXTERNAL
     304        2288 :     if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
     305         148 :         ctx->emulated_edge_mc = emulated_edge_mc_avx2;
     306             :     }
     307             : #endif
     308             : #endif /* HAVE_X86ASM */
     309        2288 : }

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