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77 lines
5.1 KiB
77 lines
5.1 KiB
/* |
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* Copyright (c) 2017 Matthieu Bouron <matthieu.bouron gmail.com> |
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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_resample_common_apply_filter_x4_float_neon, export=1 |
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movi v0.4S, #0 // accumulator |
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1: ld1 {v1.4S}, [x1], #16 // src[0..3] |
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ld1 {v2.4S}, [x2], #16 // filter[0..3] |
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fmla v0.4S, v1.4S, v2.4S // accumulator += src[0..3] * filter[0..3] |
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subs w3, w3, #4 // filter_length -= 4 |
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b.gt 1b // loop until filter_length |
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faddp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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faddp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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st1 {v0.S}[0], [x0], #4 // write accumulator |
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ret |
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endfunc |
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function ff_resample_common_apply_filter_x8_float_neon, export=1 |
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movi v0.4S, #0 // accumulator |
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1: ld1 {v1.4S}, [x1], #16 // src[0..3] |
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ld1 {v2.4S}, [x2], #16 // filter[0..3] |
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ld1 {v3.4S}, [x1], #16 // src[4..7] |
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ld1 {v4.4S}, [x2], #16 // filter[4..7] |
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fmla v0.4S, v1.4S, v2.4S // accumulator += src[0..3] * filter[0..3] |
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fmla v0.4S, v3.4S, v4.4S // accumulator += src[4..7] * filter[4..7] |
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subs w3, w3, #8 // filter_length -= 8 |
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b.gt 1b // loop until filter_length |
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faddp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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faddp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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st1 {v0.S}[0], [x0], #4 // write accumulator |
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ret |
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endfunc |
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function ff_resample_common_apply_filter_x4_s16_neon, export=1 |
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movi v0.4S, #0 // accumulator |
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1: ld1 {v1.4H}, [x1], #8 // src[0..3] |
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ld1 {v2.4H}, [x2], #8 // filter[0..3] |
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smlal v0.4S, v1.4H, v2.4H // accumulator += src[0..3] * filter[0..3] |
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subs w3, w3, #4 // filter_length -= 4 |
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b.gt 1b // loop until filter_length |
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addp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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addp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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st1 {v0.S}[0], [x0], #4 // write accumulator |
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ret |
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endfunc |
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function ff_resample_common_apply_filter_x8_s16_neon, export=1 |
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movi v0.4S, #0 // accumulator |
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1: ld1 {v1.8H}, [x1], #16 // src[0..7] |
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ld1 {v2.8H}, [x2], #16 // filter[0..7] |
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smlal v0.4S, v1.4H, v2.4H // accumulator += src[0..3] * filter[0..3] |
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smlal2 v0.4S, v1.8H, v2.8H // accumulator += src[4..7] * filter[4..7] |
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subs w3, w3, #8 // filter_length -= 8 |
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b.gt 1b // loop until filter_length |
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addp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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addp v0.4S, v0.4S, v0.4S // pair adding of the 4x32-bit accumulated values |
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st1 {v0.S}[0], [x0], #4 // write accumulator |
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ret |
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endfunc
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