| ;***************************************************************************** |
| ;* x86-optimized functions for scene SAD |
| ;* |
| ;* Copyright (C) 2018 Marton Balint |
| ;* |
| ;* Based on vf_blend.asm, Copyright (C) 2015 Paul B Mahol |
| ;* |
| ;* This file is part of FFmpeg. |
| ;* |
| ;* FFmpeg is free software; you can redistribute it and/or |
| ;* modify it under the terms of the GNU Lesser General Public |
| ;* License as published by the Free Software Foundation; either |
| ;* version 2.1 of the License, or (at your option) any later version. |
| ;* |
| ;* FFmpeg is distributed in the hope that it will be useful, |
| ;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| ;* Lesser General Public License for more details. |
| ;* |
| ;* You should have received a copy of the GNU Lesser General Public |
| ;* License along with FFmpeg; if not, write to the Free Software |
| ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| ;****************************************************************************** |
| |
| %include "libavutil/x86/x86util.asm" |
| |
| SECTION .text |
| |
| |
| %macro SAD_INIT 0 |
| cglobal scene_sad, 6, 7, 2, src1, stride1, src2, stride2, width, end, x |
| add src1q, widthq |
| add src2q, widthq |
| neg widthq |
| pxor m1, m1 |
| %endmacro |
| |
| |
| %macro SAD_LOOP 0 |
| .nextrow: |
| mov xq, widthq |
| |
| .loop: |
| movu m0, [src1q + xq] |
| psadbw m0, [src2q + xq] |
| paddq m1, m0 |
| add xq, mmsize |
| jl .loop |
| add src1q, stride1q |
| add src2q, stride2q |
| sub endd, 1 |
| jg .nextrow |
| |
| mov r0q, r6mp |
| movu [r0q], m1 ; sum |
| REP_RET |
| %endmacro |
| |
| |
| %macro SAD_FRAMES 0 |
| SAD_INIT |
| SAD_LOOP |
| %endmacro |
| |
| |
| INIT_XMM sse2 |
| SAD_FRAMES |
| |
| %if HAVE_AVX2_EXTERNAL |
| |
| INIT_YMM avx2 |
| SAD_FRAMES |
| |
| %endif |