mirror of
https://github.com/FFmpeg/FFmpeg.git
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70 lines
2.0 KiB
ArmAsm
70 lines
2.0 KiB
ArmAsm
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/*
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* Copyright (c) 2020 Martin Storsjo
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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/arm/asm.S"
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.macro vld1_8 dst, src, incr, aligned
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.if \aligned
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vld1.8 {\dst}, [\src, :64], \incr
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.else
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vld1.8 {\dst}, [\src], \incr
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.endif
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.endm
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.macro get_pixels suffix, aligned
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function ff_get_pixels\suffix\()_neon, export=1
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mov r3, #8
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1:
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vld1_8 d0, r1, r2, \aligned
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subs r3, r3, #2
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vld1_8 d2, r1, r2, \aligned
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vmovl.u8 q0, d0
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vmovl.u8 q1, d2
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vst1.16 {q0, q1}, [r0, :128]!
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bgt 1b
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bx lr
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endfunc
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.endm
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get_pixels , aligned=1
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get_pixels _unaligned, aligned=0
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.macro diff_pixels suffix, aligned=0
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function ff_diff_pixels\suffix\()_neon, export=1
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mov r12, #8
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1:
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vld1_8 d0, r1, r3, \aligned
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vld1_8 d1, r2, r3, \aligned
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subs r12, r12, #2
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vld1_8 d2, r1, r3, \aligned
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vsubl.u8 q0, d0, d1
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vld1_8 d3, r2, r3, \aligned
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vsubl.u8 q1, d2, d3
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vst1.16 {q0, q1}, [r0]!
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bgt 1b
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bx lr
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endfunc
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.endm
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diff_pixels , aligned=1
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diff_pixels _unaligned, aligned=0
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