| ;***************************************************************************** | |
| ;* 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 | |
| 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 | |