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;***************************************************************************** |
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;* x86-optimized functions for maskedmerge filter |
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;* |
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;* Copyright (C) 2015 Paul B Mahol |
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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 "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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pw_127: times 8 dw 127 |
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pw_255: times 8 dw 255 |
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pw_32897: times 8 dw 32897 |
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SECTION .text |
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INIT_XMM sse2 |
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%if ARCH_X86_64 |
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cglobal maskedmerge8, 8, 11, 8, bsrc, osrc, msrc, dst, blinesize, olinesize, mlinesize, dlinesize, w, h, x |
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mov wd, dword wm |
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mov hd, dword hm |
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%else |
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cglobal maskedmerge8, 5, 7, 8, bsrc, osrc, msrc, dst, blinesize, w, x |
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mov wd, r8m |
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%define olinesizeq r5mp |
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%define mlinesizeq r6mp |
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%define dlinesizeq r7mp |
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%define hd r9mp |
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%endif |
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mova m4, [pw_255] |
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mova m5, [pw_127] |
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mova m7, [pw_32897] |
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pxor m6, m6 |
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add bsrcq, wq |
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add osrcq, wq |
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add msrcq, wq |
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add dstq, wq |
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neg wq |
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.nextrow: |
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mov xq, wq |
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.loop: |
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movh m0, [bsrcq + xq] |
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movh m1, [osrcq + xq] |
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movh m3, [msrcq + xq] |
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mova m2, m4 |
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punpcklbw m0, m6 |
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punpcklbw m1, m6 |
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punpcklbw m3, m6 |
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psubw m2, m3 |
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pmullw m2, m0 |
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pmullw m1, m3 |
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paddw m1, m2 |
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paddw m1, m5 |
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pmulhuw m1, m7 |
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psrlw m1, 7 |
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packuswb m1, m1 |
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movh [dstq + xq], m1 |
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add xq, mmsize / 2 |
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jl .loop |
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add bsrcq, blinesizeq |
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add osrcq, olinesizeq |
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add msrcq, mlinesizeq |
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add dstq, dlinesizeq |
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sub hd, 1 |
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jg .nextrow |
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RET |
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