mirror of https://git.ffmpeg.org/ffmpeg.git
111 lines
2.6 KiB
NASM
111 lines
2.6 KiB
NASM
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;******************************************************************************
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;* x86-optimized functions for gradfun filter
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;*
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;* This file is part of Libav.
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;*
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;* Libav 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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;* Libav 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 Libav; 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_7f: times 8 dw 0x7F
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pw_ff: times 8 dw 0xFF
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SECTION .text
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%macro FILTER_LINE 1
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movh m0, [r2+r0]
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movh m1, [r3+r0]
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punpcklbw m0, m7
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punpcklwd m1, m1
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psllw m0, 7
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psubw m1, m0
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PABSW m2, m1
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pmulhuw m2, m5
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psubw m2, m6
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pminsw m2, m7
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pmullw m2, m2
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psllw m1, 2
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paddw m0, %1
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pmulhw m1, m2
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paddw m0, m1
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psraw m0, 7
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packuswb m0, m0
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movh [r1+r0], m0
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%endmacro
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INIT_MMX mmxext
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cglobal gradfun_filter_line, 6, 6
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movh m5, r4d
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pxor m7, m7
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pshufw m5, m5,0
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mova m6, [pw_7f]
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mova m3, [r5]
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mova m4, [r5+8]
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.loop:
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FILTER_LINE m3
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add r0, 4
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jge .end
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FILTER_LINE m4
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add r0, 4
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jl .loop
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.end:
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REP_RET
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INIT_XMM ssse3
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cglobal gradfun_filter_line, 6, 6, 8
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movd m5, r4d
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pxor m7, m7
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pshuflw m5, m5, 0
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mova m6, [pw_7f]
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punpcklqdq m5, m5
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mova m4, [r5]
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.loop:
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FILTER_LINE m4
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add r0, 8
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jl .loop
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REP_RET
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%macro BLUR_LINE 1
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cglobal gradfun_blur_line_%1, 6, 6, 8
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mova m7, [pw_ff]
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.loop:
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%1 m0, [r4+r0]
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%1 m1, [r5+r0]
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mova m2, m0
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mova m3, m1
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psrlw m0, 8
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psrlw m1, 8
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pand m2, m7
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pand m3, m7
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paddw m0, m1
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paddw m2, m3
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paddw m0, m2
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paddw m0, [r2+r0]
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mova m1, [r1+r0]
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mova [r1+r0], m0
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psubw m0, m1
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mova [r3+r0], m0
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add r0, 16
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jl .loop
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REP_RET
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%endmacro
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INIT_XMM sse2
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BLUR_LINE movdqa
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BLUR_LINE movdqu
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