mirror of https://git.ffmpeg.org/ffmpeg.git
288 lines
7.2 KiB
NASM
288 lines
7.2 KiB
NASM
;*****************************************************************************
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;* x86-optimized functions for blend 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_1: times 8 dw 1
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pw_128: times 8 dw 128
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pw_255: times 8 dw 255
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pb_127: times 16 db 127
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pb_128: times 16 db 128
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pb_255: times 16 db 255
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SECTION .text
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%macro BLEND_INIT 2
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%if ARCH_X86_64
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cglobal blend_%1, 6, 9, %2, top, top_linesize, bottom, bottom_linesize, dst, dst_linesize, width, end, x
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mov widthd, dword widthm
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%else
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cglobal blend_%1, 5, 7, %2, top, top_linesize, bottom, bottom_linesize, dst, end, x
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%define dst_linesizeq r5mp
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%define widthq r6mp
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%endif
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mov endd, dword r8m
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add topq, widthq
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add bottomq, widthq
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add dstq, widthq
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sub endd, dword r7m ; start
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neg widthq
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%endmacro
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%macro BLEND_END 0
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add topq, top_linesizeq
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add bottomq, bottom_linesizeq
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add dstq, dst_linesizeq
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sub endd, 1
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jg .nextrow
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REP_RET
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%endmacro
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%macro BLEND_SIMPLE 2
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BLEND_INIT %1, 2
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.nextrow:
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mov xq, widthq
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.loop:
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movu m0, [topq + xq]
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movu m1, [bottomq + xq]
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p%2 m0, m1
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mova [dstq + xq], m0
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add xq, mmsize
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jl .loop
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BLEND_END
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%endmacro
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INIT_XMM sse2
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BLEND_SIMPLE xor, xor
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BLEND_SIMPLE or, or
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BLEND_SIMPLE and, and
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BLEND_SIMPLE addition, addusb
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BLEND_SIMPLE subtract, subusb
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BLEND_SIMPLE darken, minub
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BLEND_SIMPLE lighten, maxub
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BLEND_INIT difference128, 4
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pxor m2, m2
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mova m3, [pw_128]
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq]
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movh m1, [bottomq + xq]
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punpcklbw m0, m2
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punpcklbw m1, m2
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paddw m0, m3
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psubw m0, m1
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packuswb m0, m0
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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%macro MULTIPLY 3 ; a, b, pw_1
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pmullw %1, %2 ; xxxxxxxx a * b
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paddw %1, %3
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mova %2, %1
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psrlw %2, 8
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paddw %1, %2
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psrlw %1, 8 ; 00xx00xx a * b / 255
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%endmacro
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%macro SCREEN 4 ; a, b, pw_1, pw_255
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pxor %1, %4 ; 00xx00xx 255 - a
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pxor %2, %4
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MULTIPLY %1, %2, %3
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pxor %1, %4 ; 00xx00xx 255 - x / 255
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%endmacro
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BLEND_INIT multiply, 4
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pxor m2, m2
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mova m3, [pw_1]
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.nextrow:
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mov xq, widthq
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.loop:
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; word
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; |--|
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movh m0, [topq + xq] ; 0000xxxx
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movh m1, [bottomq + xq]
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punpcklbw m0, m2 ; 00xx00xx
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punpcklbw m1, m2
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MULTIPLY m0, m1, m3
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packuswb m0, m0 ; 0000xxxx
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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BLEND_INIT screen, 5
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pxor m2, m2
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mova m3, [pw_1]
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mova m4, [pw_255]
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq] ; 0000xxxx
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movh m1, [bottomq + xq]
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punpcklbw m0, m2 ; 00xx00xx
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punpcklbw m1, m2
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SCREEN m0, m1, m3, m4
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packuswb m0, m0 ; 0000xxxx
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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BLEND_INIT average, 3
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pxor m2, m2
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq]
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movh m1, [bottomq + xq]
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punpcklbw m0, m2
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punpcklbw m1, m2
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paddw m0, m1
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psrlw m0, 1
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packuswb m0, m0
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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BLEND_INIT addition128, 4
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pxor m2, m2
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mova m3, [pw_128]
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq]
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movh m1, [bottomq + xq]
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punpcklbw m0, m2
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punpcklbw m1, m2
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paddw m0, m1
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psubw m0, m3
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packuswb m0, m0
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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BLEND_INIT hardmix, 5
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mova m2, [pb_255]
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mova m3, [pb_128]
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mova m4, [pb_127]
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.nextrow:
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mov xq, widthq
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.loop:
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movu m0, [topq + xq]
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movu m1, [bottomq + xq]
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pxor m1, m4
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pxor m0, m3
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pcmpgtb m1, m0
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pxor m1, m2
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mova [dstq + xq], m1
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add xq, mmsize
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jl .loop
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BLEND_END
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BLEND_INIT phoenix, 4
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mova m3, [pb_255]
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.nextrow:
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mov xq, widthq
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.loop:
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movu m0, [topq + xq]
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movu m1, [bottomq + xq]
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mova m2, m0
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pminub m0, m1
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pmaxub m1, m2
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mova m2, m3
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psubusb m2, m1
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paddusb m2, m0
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mova [dstq + xq], m2
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add xq, mmsize
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jl .loop
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BLEND_END
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%macro BLEND_ABS 0
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BLEND_INIT difference, 3
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pxor m2, m2
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq]
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movh m1, [bottomq + xq]
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punpcklbw m0, m2
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punpcklbw m1, m2
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psubw m0, m1
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ABS1 m0, m1
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packuswb m0, m0
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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BLEND_INIT negation, 5
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pxor m2, m2
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mova m4, [pw_255]
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.nextrow:
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mov xq, widthq
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.loop:
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movh m0, [topq + xq]
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movh m1, [bottomq + xq]
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punpcklbw m0, m2
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punpcklbw m1, m2
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mova m3, m4
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psubw m3, m0
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psubw m3, m1
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ABS1 m3, m1
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mova m0, m4
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psubw m0, m3
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packuswb m0, m0
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movh [dstq + xq], m0
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add xq, mmsize / 2
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jl .loop
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BLEND_END
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%endmacro
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INIT_XMM sse2
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BLEND_ABS
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INIT_XMM ssse3
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BLEND_ABS
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