52 lines
1.6 KiB
ArmAsm
52 lines
1.6 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/aarch64/asm.S"
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function ff_get_pixels_neon, export=1
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mov w3, #8
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1:
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ld1 {v0.8b}, [x1], x2
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subs w3, w3, #2
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ld1 {v1.8b}, [x1], x2
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uxtl v0.8h, v0.8b
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uxtl v1.8h, v1.8b
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st1 {v0.8h, v1.8h}, [x0], #32
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b.gt 1b
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ret
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endfunc
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function ff_diff_pixels_neon, export=1
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mov w4, #8
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1:
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ld1 {v0.8b}, [x1], x3
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ld1 {v1.8b}, [x2], x3
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subs w4, w4, #2
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ld1 {v2.8b}, [x1], x3
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usubl v0.8h, v0.8b, v1.8b
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ld1 {v3.8b}, [x2], x3
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usubl v1.8h, v2.8b, v3.8b
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st1 {v0.8h, v1.8h}, [x0], #32
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b.gt 1b
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ret
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endfunc
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