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| /* | |
| * ARM NEON optimised Float DSP functions | |
| * Copyright (c) 2008 Mans Rullgard <[email protected]> | |
| * Copyright (c) 2014 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 "asm.S" | |
| function ff_vector_fmul_neon, export=1 | |
| 1: subs w3, w3, #16 | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| ld1 {v2.4S, v3.4S}, [x1], #32 | |
| ld1 {v4.4S, v5.4S}, [x2], #32 | |
| ld1 {v6.4S, v7.4S}, [x2], #32 | |
| fmul v16.4S, v0.4S, v4.4S | |
| fmul v17.4S, v1.4S, v5.4S | |
| fmul v18.4S, v2.4S, v6.4S | |
| fmul v19.4S, v3.4S, v7.4S | |
| st1 {v16.4S, v17.4S}, [x0], #32 | |
| st1 {v18.4S, v19.4S}, [x0], #32 | |
| b.ne 1b | |
| ret | |
| endfunc | |
| function ff_vector_fmac_scalar_neon, export=1 | |
| mov x3, #-32 | |
| 1: subs w2, w2, #16 | |
| ld1 {v16.4S, v17.4S}, [x0], #32 | |
| ld1 {v18.4S, v19.4S}, [x0], x3 | |
| ld1 {v4.4S, v5.4S}, [x1], #32 | |
| ld1 {v6.4S, v7.4S}, [x1], #32 | |
| fmla v16.4S, v4.4S, v0.S[0] | |
| fmla v17.4S, v5.4S, v0.S[0] | |
| fmla v18.4S, v6.4S, v0.S[0] | |
| fmla v19.4S, v7.4S, v0.S[0] | |
| st1 {v16.4S, v17.4S}, [x0], #32 | |
| st1 {v18.4S, v19.4S}, [x0], #32 | |
| b.ne 1b | |
| ret | |
| endfunc | |
| function ff_vector_fmul_scalar_neon, export=1 | |
| mov w4, #15 | |
| bics w3, w2, w4 | |
| dup v16.4S, v0.S[0] | |
| b.eq 3f | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| 1: subs w3, w3, #16 | |
| fmul v0.4S, v0.4S, v16.4S | |
| ld1 {v2.4S, v3.4S}, [x1], #32 | |
| fmul v1.4S, v1.4S, v16.4S | |
| fmul v2.4S, v2.4S, v16.4S | |
| st1 {v0.4S, v1.4S}, [x0], #32 | |
| fmul v3.4S, v3.4S, v16.4S | |
| b.eq 2f | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| st1 {v2.4S, v3.4S}, [x0], #32 | |
| b 1b | |
| 2: ands w2, w2, #15 | |
| st1 {v2.4S, v3.4S}, [x0], #32 | |
| b.eq 4f | |
| 3: ld1 {v0.4S}, [x1], #16 | |
| fmul v0.4S, v0.4S, v16.4S | |
| st1 {v0.4S}, [x0], #16 | |
| subs w2, w2, #4 | |
| b.gt 3b | |
| 4: ret | |
| endfunc | |
| function ff_vector_dmul_scalar_neon, export=1 | |
| dup v16.2D, v0.D[0] | |
| ld1 {v0.2D, v1.2D}, [x1], #32 | |
| 1: subs w2, w2, #8 | |
| fmul v0.2D, v0.2D, v16.2D | |
| ld1 {v2.2D, v3.2D}, [x1], #32 | |
| fmul v1.2D, v1.2D, v16.2D | |
| fmul v2.2D, v2.2D, v16.2D | |
| st1 {v0.2D, v1.2D}, [x0], #32 | |
| fmul v3.2D, v3.2D, v16.2D | |
| ld1 {v0.2D, v1.2D}, [x1], #32 | |
| st1 {v2.2D, v3.2D}, [x0], #32 | |
| b.gt 1b | |
| ret | |
| endfunc | |
| function ff_vector_fmul_window_neon, export=1 | |
| sxtw x4, w4 // len | |
| sub x2, x2, #8 | |
| sub x5, x4, #2 | |
| add x2, x2, x5, lsl #2 // src1 + 4 * (len - 4) | |
| add x6, x3, x5, lsl #3 // win + 8 * (len - 2) | |
| add x5, x0, x5, lsl #3 // dst + 8 * (len - 2) | |
| mov x7, #-16 | |
| ld1 {v0.4S}, [x1], #16 // s0 | |
| ld1 {v2.4S}, [x3], #16 // wi | |
| ld1 {v1.4S}, [x2], x7 // s1 | |
| 1: ld1 {v3.4S}, [x6], x7 // wj | |
| subs x4, x4, #4 | |
| fmul v17.4S, v0.4S, v2.4S // s0 * wi | |
| rev64 v4.4S, v1.4S | |
| rev64 v5.4S, v3.4S | |
| rev64 v17.4S, v17.4S | |
| ext v4.16B, v4.16B, v4.16B, #8 // s1_r | |
| ext v5.16B, v5.16B, v5.16B, #8 // wj_r | |
| ext v17.16B, v17.16B, v17.16B, #8 // (s0 * wi)_rev | |
| fmul v16.4S, v0.4S, v5.4S // s0 * wj_r | |
| fmla v17.4S, v1.4S, v3.4S // (s0 * wi)_rev + s1 * wj | |
| b.eq 2f | |
| ld1 {v0.4S}, [x1], #16 | |
| fmls v16.4S, v4.4S, v2.4S // s0 * wj_r - s1_r * wi | |
| st1 {v17.4S}, [x5], x7 | |
| ld1 {v2.4S}, [x3], #16 | |
| ld1 {v1.4S}, [x2], x7 | |
| st1 {v16.4S}, [x0], #16 | |
| b 1b | |
| 2: | |
| fmls v16.4S, v4.4S, v2.4S // s0 * wj_r - s1_r * wi | |
| st1 {v17.4S}, [x5], x7 | |
| st1 {v16.4S}, [x0], #16 | |
| ret | |
| endfunc | |
| function ff_vector_fmul_add_neon, export=1 | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| ld1 {v2.4S, v3.4S}, [x2], #32 | |
| ld1 {v4.4S, v5.4S}, [x3], #32 | |
| 1: subs w4, w4, #8 | |
| fmla v4.4S, v0.4S, v2.4S | |
| fmla v5.4S, v1.4S, v3.4S | |
| b.eq 2f | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| ld1 {v2.4S, v3.4S}, [x2], #32 | |
| st1 {v4.4S, v5.4S}, [x0], #32 | |
| ld1 {v4.4S, v5.4S}, [x3], #32 | |
| b 1b | |
| 2: st1 {v4.4S, v5.4S}, [x0], #32 | |
| ret | |
| endfunc | |
| function ff_vector_fmul_reverse_neon, export=1 | |
| sxtw x3, w3 | |
| add x2, x2, x3, lsl #2 | |
| sub x2, x2, #32 | |
| mov x4, #-32 | |
| ld1 {v2.4S, v3.4S}, [x2], x4 | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| 1: subs x3, x3, #8 | |
| rev64 v3.4S, v3.4S | |
| rev64 v2.4S, v2.4S | |
| ext v3.16B, v3.16B, v3.16B, #8 | |
| ext v2.16B, v2.16B, v2.16B, #8 | |
| fmul v16.4S, v0.4S, v3.4S | |
| fmul v17.4S, v1.4S, v2.4S | |
| b.eq 2f | |
| ld1 {v2.4S, v3.4S}, [x2], x4 | |
| ld1 {v0.4S, v1.4S}, [x1], #32 | |
| st1 {v16.4S, v17.4S}, [x0], #32 | |
| b 1b | |
| 2: st1 {v16.4S, v17.4S}, [x0], #32 | |
| ret | |
| endfunc | |
| function ff_butterflies_float_neon, export=1 | |
| 1: ld1 {v0.4S}, [x0] | |
| ld1 {v1.4S}, [x1] | |
| subs w2, w2, #4 | |
| fsub v2.4S, v0.4S, v1.4S | |
| fadd v3.4S, v0.4S, v1.4S | |
| st1 {v2.4S}, [x1], #16 | |
| st1 {v3.4S}, [x0], #16 | |
| b.gt 1b | |
| ret | |
| endfunc | |
| function ff_scalarproduct_float_neon, export=1 | |
| movi v2.4S, #0 | |
| 1: ld1 {v0.4S}, [x0], #16 | |
| ld1 {v1.4S}, [x1], #16 | |
| subs w2, w2, #4 | |
| fmla v2.4S, v0.4S, v1.4S | |
| b.gt 1b | |
| faddp v0.4S, v2.4S, v2.4S | |
| faddp s0, v0.2S | |
| ret | |
| endfunc | |