| ;***************************************************************************** |
| ;* x86-optimized functions for threshold filter |
| ;* |
| ;* Copyright (C) 2017 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_RODATA |
| |
| pb_128: times 16 db 128 |
| pb_128_0 : times 8 db 0, 128 |
| |
| SECTION .text |
| |
| ;%1 depth (8 or 16) ; %2 b or w ; %3 constant |
| %macro THRESHOLD 3 |
| %if ARCH_X86_64 |
| cglobal threshold%1, 10, 13, 5, in, threshold, min, max, out, ilinesize, tlinesize, flinesize, slinesize, olinesize, w, h, x |
| mov wd, dword wm |
| mov hd, dword hm |
| %else |
| cglobal threshold%1, 5, 7, 5, in, threshold, min, max, out, w, x |
| mov wd, r10m |
| %define ilinesizeq r5mp |
| %define tlinesizeq r6mp |
| %define flinesizeq r7mp |
| %define slinesizeq r8mp |
| %define olinesizeq r9mp |
| %define hd r11mp |
| %endif |
| VBROADCASTI128 m4, [%3] |
| %if %1 == 16 |
| add wq, wq ; w *= 2 (16 bits instead of 8) |
| %endif |
| add inq, wq |
| add thresholdq, wq |
| add minq, wq |
| add maxq, wq |
| add outq, wq |
| neg wq |
| .nextrow: |
| mov xq, wq |
| |
| .loop: |
| movu m1, [inq + xq] |
| movu m0, [thresholdq + xq] |
| movu m2, [minq + xq] |
| movu m3, [maxq + xq] |
| pxor m0, m4 |
| pxor m1, m4 |
| pcmpgt%2 m0, m1 |
| PBLENDVB m3, m2, m0 |
| movu [outq + xq], m3 |
| add xq, mmsize |
| jl .loop |
| |
| add inq, ilinesizeq |
| add thresholdq, tlinesizeq |
| add minq, flinesizeq |
| add maxq, slinesizeq |
| add outq, olinesizeq |
| sub hd, 1 |
| jg .nextrow |
| RET |
| %endmacro |
| |
| INIT_XMM sse4 |
| THRESHOLD 8, b, pb_128 |
| THRESHOLD 16, w, pb_128_0 |
| |
| %if HAVE_AVX2_EXTERNAL |
| INIT_YMM avx2 |
| THRESHOLD 8, b, pb_128 |
| THRESHOLD 16, w, pb_128_0 |
| %endif |