mirror of
https://git.ffmpeg.org/ffmpeg.git
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94 lines
2.4 KiB
ArmAsm
94 lines
2.4 KiB
ArmAsm
/*
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* Copyright (c) 2024 Ramiro Polla
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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_pix_sum16_neon, export=1
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// x0 const uint8_t *pix
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// x1 ptrdiff_t line_size
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add x2, x0, x1
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lsl x1, x1, #1
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movi v0.16b, #0
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mov w3, #16
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1:
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ld1 {v1.16b}, [x0], x1
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ld1 {v2.16b}, [x2], x1
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subs w3, w3, #2
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uadalp v0.8h, v1.16b
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uadalp v0.8h, v2.16b
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b.ne 1b
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uaddlv s0, v0.8h
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fmov w0, s0
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ret
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endfunc
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function ff_pix_norm1_neon, export=1
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// x0 const uint8_t *pix
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// x1 ptrdiff_t line_size
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movi v0.16b, #0
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mov w2, #16
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1:
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ld1 {v1.16b}, [x0], x1
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subs w2, w2, #1
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umull v2.8h, v1.8b, v1.8b
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umull2 v3.8h, v1.16b, v1.16b
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uadalp v0.4s, v2.8h
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uadalp v0.4s, v3.8h
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b.ne 1b
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uaddlv d0, v0.4s
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fmov w0, s0
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ret
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endfunc
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#if HAVE_DOTPROD
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ENABLE_DOTPROD
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function ff_pix_norm1_neon_dotprod, export=1
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// x0 const uint8_t *pix
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// x1 ptrdiff_t line_size
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movi v0.16b, #0
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mov w2, #16
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1:
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ld1 {v1.16b}, [x0], x1
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ld1 {v2.16b}, [x0], x1
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udot v0.4s, v1.16b, v1.16b
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subs w2, w2, #2
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udot v0.4s, v2.16b, v2.16b
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b.ne 1b
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uaddlv d0, v0.4s
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fmov w0, s0
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ret
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endfunc
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DISABLE_DOTPROD
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#endif
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