GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/x86/videodsp_init.c Lines: 53 54 98.1 %
Date: 2020-10-23 17:01:47 Branches: 34 36 94.4 %

Line Branch Exec Source
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/*
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 * Copyright (C) 2002-2012 Michael Niedermayer
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 * Copyright (C) 2012 Ronald S. Bultje
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/common.h"
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#include "libavutil/cpu.h"
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#include "libavutil/mem.h"
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#include "libavutil/x86/asm.h"
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#include "libavutil/x86/cpu.h"
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#include "libavcodec/videodsp.h"
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#if HAVE_X86ASM
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typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
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                                const uint8_t *src, x86_reg src_stride,
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                                x86_reg start_y, x86_reg end_y, x86_reg bh);
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typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
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                                const uint8_t *src, x86_reg src_stride,
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                                x86_reg start_y, x86_reg end_y, x86_reg bh,
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                                x86_reg w);
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extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
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#if ARCH_X86_32
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static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
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    &ff_emu_edge_vfix1_mmx,  &ff_emu_edge_vfix2_mmx,  &ff_emu_edge_vfix3_mmx,
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    &ff_emu_edge_vfix4_mmx,  &ff_emu_edge_vfix5_mmx,  &ff_emu_edge_vfix6_mmx,
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    &ff_emu_edge_vfix7_mmx,  &ff_emu_edge_vfix8_mmx,  &ff_emu_edge_vfix9_mmx,
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    &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
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    &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
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    &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
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    &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
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    &ff_emu_edge_vfix22_mmx
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};
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#endif
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extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
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extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
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extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
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static emu_edge_vfix_func * const vfixtbl_sse[22] = {
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    ff_emu_edge_vfix1_mmx,  ff_emu_edge_vfix2_mmx,  ff_emu_edge_vfix3_mmx,
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    ff_emu_edge_vfix4_mmx,  ff_emu_edge_vfix5_mmx,  ff_emu_edge_vfix6_mmx,
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    ff_emu_edge_vfix7_mmx,  ff_emu_edge_vfix8_mmx,  ff_emu_edge_vfix9_mmx,
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    ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
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    ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
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    ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
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    ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
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    ff_emu_edge_vfix22_sse
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};
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extern emu_edge_vvar_func ff_emu_edge_vvar_sse;
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typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
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                                x86_reg start_x, x86_reg bh);
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typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
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                                x86_reg start_x, x86_reg n_words, x86_reg bh);
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extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
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#if ARCH_X86_32
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static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
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    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
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    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
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    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
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    ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
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};
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#endif
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extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
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extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
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extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
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extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
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extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
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static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
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    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
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    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
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    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
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    ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
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};
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extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
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#if HAVE_AVX2_EXTERNAL
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extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
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extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
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static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
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    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
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    ff_emu_edge_hfix8_avx2,  ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
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    ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
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    ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
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};
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extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
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#endif
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356819
static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
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                                              ptrdiff_t dst_stride,
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                                              ptrdiff_t src_stride,
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                                              x86_reg block_w, x86_reg block_h,
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                                              x86_reg src_x, x86_reg src_y,
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                                              x86_reg w, x86_reg h,
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                                              emu_edge_vfix_func * const *vfix_tbl,
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                                              emu_edge_vvar_func *v_extend_var,
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                                              emu_edge_hfix_func * const *hfix_tbl,
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                                              emu_edge_hvar_func *h_extend_var)
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{
160
356819
    x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
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162

356819
    if (!w || !h)
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        return;
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    av_assert2(block_w <= FFABS(dst_stride));
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167
356819
    if (src_y >= h) {
168
748
        src -= src_y*src_stride;
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748
        src_y_add = h - 1;
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748
        src_y     = h - 1;
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356071
    } else if (src_y <= -block_h) {
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403
        src -= src_y*src_stride;
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403
        src_y_add = 1 - block_h;
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403
        src_y     = 1 - block_h;
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    }
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356819
    if (src_x >= w) {
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686
        src   += w - 1 - src_x;
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686
        src_x  = w - 1;
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356133
    } else if (src_x <= -block_w) {
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        src   += 1 - block_w - src_x;
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423
        src_x  = 1 - block_w;
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    }
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356819
    start_y = FFMAX(0, -src_y);
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356819
    start_x = FFMAX(0, -src_x);
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356819
    end_y   = FFMIN(block_h, h-src_y);
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356819
    end_x   = FFMIN(block_w, w-src_x);
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    av_assert2(start_x < end_x && block_w > 0);
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    av_assert2(start_y < end_y && block_h > 0);
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    // fill in the to-be-copied part plus all above/below
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356819
    src += (src_y_add + start_y) * src_stride + start_x;
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356819
    w = end_x - start_x;
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356819
    if (w <= 22) {
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356315
        vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
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                        start_y, end_y, block_h);
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    } else {
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504
        v_extend_var(dst + start_x, dst_stride, src, src_stride,
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                     start_y, end_y, block_h, w);
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    }
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    // fill left
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356819
    if (start_x) {
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35372
        if (start_x <= 22) {
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34733
            hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
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        } else {
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639
            h_extend_var(dst, dst_stride,
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639
                         start_x, (start_x + 1) >> 1, block_h);
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        }
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    }
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    // fill right
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356819
    p = block_w - end_x;
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356819
    if (p) {
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108082
        if (p <= 22) {
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106831
            hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
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106831
                                   -!(p & 1), block_h);
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        } else {
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1251
            h_extend_var(dst + end_x - (p & 1), dst_stride,
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1251
                         -!(p & 1), (p + 1) >> 1, block_h);
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        }
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    }
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}
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#if ARCH_X86_32
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static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src,
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                                             ptrdiff_t buf_stride,
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                                             ptrdiff_t src_stride,
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                                             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,
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                     src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
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                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
235
}
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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,
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                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
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                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
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}
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#endif
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249
1440
static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src,
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                                              ptrdiff_t buf_stride,
251
                                              ptrdiff_t src_stride,
252
                                              int block_w, int block_h,
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                                              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,
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                     hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
259
1440
}
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#if HAVE_AVX2_EXTERNAL
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355379
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)
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{
269
355379
    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,
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                     hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
272
355379
}
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#endif /* HAVE_AVX2_EXTERNAL */
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#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
2375
av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
280
{
281
#if HAVE_X86ASM
282
2375
    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
2375
    if (EXTERNAL_MMXEXT(cpu_flags)) {
293
184
        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

2375
    if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
301
179
        ctx->emulated_edge_mc = emulated_edge_mc_sse2;
302
    }
303
#if HAVE_AVX2_EXTERNAL
304

2375
    if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
305
171
        ctx->emulated_edge_mc = emulated_edge_mc_avx2;
306
    }
307
#endif
308
#endif /* HAVE_X86ASM */
309
2375
}