mirror of
https://git.ffmpeg.org/ffmpeg.git
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100 lines
3.4 KiB
ArmAsm
100 lines
3.4 KiB
ArmAsm
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/*
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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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.macro lumConvertRange name, max, mult, offset, shift
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function ff_\name, export=1
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.if \max != 0
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mov w3, #\max
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dup v24.8h, w3
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.endif
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mov w3, #\mult
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dup v25.4s, w3
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movz w3, #(\offset & 0xffff)
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movk w3, #((\offset >> 16) & 0xffff), lsl #16
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dup v26.4s, w3
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1:
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ld1 {v0.8h}, [x0]
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.if \max != 0
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smin v0.8h, v0.8h, v24.8h
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.endif
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mov v16.16b, v26.16b
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mov v18.16b, v26.16b
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sxtl v20.4s, v0.4h
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sxtl2 v22.4s, v0.8h
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mla v16.4s, v20.4s, v25.4s
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mla v18.4s, v22.4s, v25.4s
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shrn v0.4h, v16.4s, #\shift
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shrn2 v0.8h, v18.4s, #\shift
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subs w1, w1, #8
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st1 {v0.8h}, [x0], #16
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b.gt 1b
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ret
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endfunc
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.endm
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.macro chrConvertRange name, max, mult, offset, shift
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function ff_\name, export=1
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.if \max != 0
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mov w3, #\max
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dup v24.8h, w3
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.endif
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mov w3, #\mult
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dup v25.4s, w3
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movz w3, #(\offset & 0xffff)
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movk w3, #((\offset >> 16) & 0xffff), lsl #16
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dup v26.4s, w3
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1:
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ld1 {v0.8h}, [x0]
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ld1 {v1.8h}, [x1]
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.if \max != 0
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smin v0.8h, v0.8h, v24.8h
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smin v1.8h, v1.8h, v24.8h
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.endif
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mov v16.16b, v26.16b
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mov v17.16b, v26.16b
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mov v18.16b, v26.16b
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mov v19.16b, v26.16b
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sxtl v20.4s, v0.4h
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sxtl v21.4s, v1.4h
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sxtl2 v22.4s, v0.8h
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sxtl2 v23.4s, v1.8h
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mla v16.4s, v20.4s, v25.4s
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mla v17.4s, v21.4s, v25.4s
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mla v18.4s, v22.4s, v25.4s
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mla v19.4s, v23.4s, v25.4s
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shrn v0.4h, v16.4s, #\shift
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shrn v1.4h, v17.4s, #\shift
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shrn2 v0.8h, v18.4s, #\shift
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shrn2 v1.8h, v19.4s, #\shift
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subs w2, w2, #8
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st1 {v0.8h}, [x0], #16
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st1 {v1.8h}, [x1], #16
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b.gt 1b
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ret
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endfunc
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.endm
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lumConvertRange lumRangeToJpeg_neon, 30189, 19077, -39057361, 14
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chrConvertRange chrRangeToJpeg_neon, 30775, 4663, -9289992, 12
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lumConvertRange lumRangeFromJpeg_neon, 0, 14071, 33561947, 14
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chrConvertRange chrRangeFromJpeg_neon, 0, 1799, 4081085, 11
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