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76 lines
2.7 KiB
76 lines
2.7 KiB
/* |
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* ARM NEON optimised Format Conversion Utils |
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* Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
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* Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net> |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 "config.h" |
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#include "libavutil/aarch64/asm.S" |
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function ff_int32_to_float_fmul_scalar_neon, export=1 |
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ld1 {v1.4s,v2.4s}, [x1], #32 |
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scvtf v1.4s, v1.4s |
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scvtf v2.4s, v2.4s |
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1: |
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subs w2, w2, #8 |
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fmul v3.4s, v1.4s, v0.s[0] |
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fmul v4.4s, v2.4s, v0.s[0] |
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b.le 2f |
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ld1 {v1.4s,v2.4s}, [x1], #32 |
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st1 {v3.4s,v4.4s}, [x0], #32 |
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scvtf v1.4s, v1.4s |
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scvtf v2.4s, v2.4s |
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b 1b |
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2: |
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st1 {v3.4s,v4.4s}, [x0] |
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ret |
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endfunc |
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function ff_int32_to_float_fmul_array8_neon, export=1 |
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lsr w4, w4, #3 |
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subs w5, w4, #1 |
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b.eq 1f |
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2: |
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ld1 {v0.4s,v1.4s}, [x2], #32 |
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ld1 {v2.4s,v3.4s}, [x2], #32 |
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scvtf v0.4s, v0.4s |
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scvtf v1.4s, v1.4s |
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ld1 {v16.2s}, [x3], #8 |
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scvtf v2.4s, v2.4s |
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scvtf v3.4s, v3.4s |
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fmul v4.4s, v0.4s, v16.s[0] |
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fmul v5.4s, v1.4s, v16.s[0] |
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fmul v6.4s, v2.4s, v16.s[1] |
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fmul v7.4s, v3.4s, v16.s[1] |
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st1 {v4.4s,v5.4s}, [x1], #32 |
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st1 {v6.4s,v7.4s}, [x1], #32 |
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subs w5, w5, #2 |
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b.gt 2b |
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b.eq 1f |
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ret |
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1: |
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ld1 {v0.4s,v1.4s}, [x2] |
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ld1 {v16.s}[0], [x3] |
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scvtf v0.4s, v0.4s |
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scvtf v1.4s, v1.4s |
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fmul v4.4s, v0.4s, v16.s[0] |
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fmul v5.4s, v1.4s, v16.s[0] |
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st1 {v4.4s,v5.4s}, [x1] |
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ret |
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endfunc
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