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| /* | |
| * ARM NEON optimised Format Conversion Utils | |
| * Copyright (c) 2008 Mans Rullgard <[email protected]> | |
| * Copyright (c) 2015 Janne Grunau <[email protected]> | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include "config.h" | |
| #include "libavutil/aarch64/asm.S" | |
| function ff_int32_to_float_fmul_scalar_neon, export=1 | |
| ld1 {v1.4s,v2.4s}, [x1], #32 | |
| scvtf v1.4s, v1.4s | |
| scvtf v2.4s, v2.4s | |
| 1: | |
| subs w2, w2, #8 | |
| fmul v3.4s, v1.4s, v0.s[0] | |
| fmul v4.4s, v2.4s, v0.s[0] | |
| b.le 2f | |
| ld1 {v1.4s,v2.4s}, [x1], #32 | |
| st1 {v3.4s,v4.4s}, [x0], #32 | |
| scvtf v1.4s, v1.4s | |
| scvtf v2.4s, v2.4s | |
| b 1b | |
| 2: | |
| st1 {v3.4s,v4.4s}, [x0] | |
| ret | |
| endfunc | |
| function ff_int32_to_float_fmul_array8_neon, export=1 | |
| lsr w4, w4, #3 | |
| subs w5, w4, #1 | |
| b.eq 1f | |
| 2: | |
| ld1 {v0.4s,v1.4s}, [x2], #32 | |
| ld1 {v2.4s,v3.4s}, [x2], #32 | |
| scvtf v0.4s, v0.4s | |
| scvtf v1.4s, v1.4s | |
| ld1 {v16.2s}, [x3], #8 | |
| scvtf v2.4s, v2.4s | |
| scvtf v3.4s, v3.4s | |
| fmul v4.4s, v0.4s, v16.s[0] | |
| fmul v5.4s, v1.4s, v16.s[0] | |
| fmul v6.4s, v2.4s, v16.s[1] | |
| fmul v7.4s, v3.4s, v16.s[1] | |
| st1 {v4.4s,v5.4s}, [x1], #32 | |
| st1 {v6.4s,v7.4s}, [x1], #32 | |
| subs w5, w5, #2 | |
| b.gt 2b | |
| b.eq 1f | |
| ret | |
| 1: | |
| ld1 {v0.4s,v1.4s}, [x2] | |
| ld1 {v16.s}[0], [x3] | |
| scvtf v0.4s, v0.4s | |
| scvtf v1.4s, v1.4s | |
| fmul v4.4s, v0.4s, v16.s[0] | |
| fmul v5.4s, v1.4s, v16.s[0] | |
| st1 {v4.4s,v5.4s}, [x1] | |
| ret | |
| endfunc | |