mirror of
https://github.com/FFmpeg/FFmpeg.git
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19abc4c0a9
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT, SSE and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2). So given that the only systems which benefit from these functions are truely ancient 32bit x86s they are removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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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