mirror of https://git.ffmpeg.org/ffmpeg.git
238 lines
9.7 KiB
C
238 lines
9.7 KiB
C
/*
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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/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_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_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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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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{
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x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
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if (!w || !h)
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return;
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av_assert2(block_w <= FFABS(dst_stride));
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if (src_y >= h) {
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src -= src_y*src_stride;
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src_y_add = h - 1;
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src_y = h - 1;
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} else if (src_y <= -block_h) {
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src -= src_y*src_stride;
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src_y_add = 1 - block_h;
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src_y = 1 - block_h;
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}
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if (src_x >= w) {
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src += w - 1 - src_x;
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src_x = w - 1;
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} else if (src_x <= -block_w) {
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src += 1 - block_w - src_x;
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src_x = 1 - block_w;
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}
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start_y = FFMAX(0, -src_y);
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start_x = FFMAX(0, -src_x);
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end_y = FFMIN(block_h, h-src_y);
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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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src += (src_y_add + start_y) * src_stride + start_x;
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w = end_x - start_x;
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if (w <= 22) {
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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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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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if (start_x) {
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if (start_x <= 22) {
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hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
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} else {
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h_extend_var(dst, dst_stride,
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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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p = block_w - end_x;
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if (p) {
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if (p <= 22) {
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hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
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-!(p & 1), block_h);
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} else {
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h_extend_var(dst + end_x - (p & 1), dst_stride,
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-!(p & 1), (p + 1) >> 1, block_h);
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}
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}
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}
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static av_noinline void emulated_edge_mc_sse2(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,
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int src_x, int src_y, int w,
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int h)
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{
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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_sse2, &ff_emu_edge_hvar_sse2);
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}
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#if HAVE_AVX2_EXTERNAL
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static av_noinline void emulated_edge_mc_avx2(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,
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int src_x, int src_y, int w,
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int h)
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{
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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_avx2, &ff_emu_edge_hvar_avx2);
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}
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#endif /* HAVE_AVX2_EXTERNAL */
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#endif /* HAVE_X86ASM */
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void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
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av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
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{
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#if HAVE_X86ASM
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_MMXEXT(cpu_flags)) {
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ctx->prefetch = ff_prefetch_mmxext;
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}
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if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
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ctx->emulated_edge_mc = emulated_edge_mc_sse2;
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}
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#if HAVE_AVX2_EXTERNAL
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if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
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ctx->emulated_edge_mc = emulated_edge_mc_avx2;
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}
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#endif
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#endif /* HAVE_X86ASM */
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}
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