Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2011 Mans Rullgard |
||
| 3 | * |
||
| 4 | * This file is part of FFmpeg. |
||
| 5 | * |
||
| 6 | * FFmpeg is free software; you can redistribute it and/or |
||
| 7 | * modify it under the terms of the GNU Lesser General Public |
||
| 8 | * License as published by the Free Software Foundation; either |
||
| 9 | * version 2.1 of the License, or (at your option) any later version. |
||
| 10 | * |
||
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
| 14 | * Lesser General Public License for more details. |
||
| 15 | * |
||
| 16 | * You should have received a copy of the GNU Lesser General Public |
||
| 17 | * License along with FFmpeg; if not, write to the Free Software |
||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||
| 19 | */ |
||
| 20 | |||
| 21 | #include "libavutil/arm/asm.S" |
||
| 22 | |||
| 23 | function ff_ac3_max_msb_abs_int16_neon, export=1 |
||
| 24 | vmov.i16 q0, #0 |
||
| 25 | vmov.i16 q2, #0 |
||
| 26 | 1: vld1.16 {q1}, [r0,:128]! |
||
| 27 | vabs.s16 q1, q1 |
||
| 28 | vld1.16 {q3}, [r0,:128]! |
||
| 29 | vabs.s16 q3, q3 |
||
| 30 | vorr q0, q0, q1 |
||
| 31 | vorr q2, q2, q3 |
||
| 32 | subs r1, r1, #16 |
||
| 33 | bgt 1b |
||
| 34 | vorr q0, q0, q2 |
||
| 35 | vorr d0, d0, d1 |
||
| 36 | vpmax.u16 d0, d0, d0 |
||
| 37 | vpmax.u16 d0, d0, d0 |
||
| 38 | vmov.u16 r0, d0[0] |
||
| 39 | bx lr |
||
| 40 | endfunc |
||
| 41 | |||
| 42 | function ff_ac3_exponent_min_neon, export=1 |
||
| 43 | cmp r1, #0 |
||
| 44 | it eq |
||
| 45 | bxeq lr |
||
| 46 | push {lr} |
||
| 47 | mov r12, #256 |
||
| 48 | 1: |
||
| 49 | vld1.8 {q0}, [r0,:128] |
||
| 50 | mov lr, r1 |
||
| 51 | add r3, r0, #256 |
||
| 52 | 2: vld1.8 {q1}, [r3,:128], r12 |
||
| 53 | subs lr, lr, #1 |
||
| 54 | vmin.u8 q0, q0, q1 |
||
| 55 | bgt 2b |
||
| 56 | subs r2, r2, #16 |
||
| 57 | vst1.8 {q0}, [r0,:128]! |
||
| 58 | bgt 1b |
||
| 59 | pop {pc} |
||
| 60 | endfunc |
||
| 61 | |||
| 62 | function ff_ac3_lshift_int16_neon, export=1 |
||
| 63 | vdup.16 q0, r2 |
||
| 64 | 1: vld1.16 {q1}, [r0,:128] |
||
| 65 | vshl.s16 q1, q1, q0 |
||
| 66 | vst1.16 {q1}, [r0,:128]! |
||
| 67 | subs r1, r1, #8 |
||
| 68 | bgt 1b |
||
| 69 | bx lr |
||
| 70 | endfunc |
||
| 71 | |||
| 72 | function ff_ac3_rshift_int32_neon, export=1 |
||
| 73 | rsb r2, r2, #0 |
||
| 74 | vdup.32 q0, r2 |
||
| 75 | 1: vld1.32 {q1}, [r0,:128] |
||
| 76 | vshl.s32 q1, q1, q0 |
||
| 77 | vst1.32 {q1}, [r0,:128]! |
||
| 78 | subs r1, r1, #4 |
||
| 79 | bgt 1b |
||
| 80 | bx lr |
||
| 81 | endfunc |
||
| 82 | |||
| 83 | function ff_float_to_fixed24_neon, export=1 |
||
| 84 | 1: vld1.32 {q0-q1}, [r1,:128]! |
||
| 85 | vcvt.s32.f32 q0, q0, #24 |
||
| 86 | vld1.32 {q2-q3}, [r1,:128]! |
||
| 87 | vcvt.s32.f32 q1, q1, #24 |
||
| 88 | vcvt.s32.f32 q2, q2, #24 |
||
| 89 | vst1.32 {q0-q1}, [r0,:128]! |
||
| 90 | vcvt.s32.f32 q3, q3, #24 |
||
| 91 | vst1.32 {q2-q3}, [r0,:128]! |
||
| 92 | subs r2, r2, #16 |
||
| 93 | bgt 1b |
||
| 94 | bx lr |
||
| 95 | endfunc |
||
| 96 | |||
| 97 | function ff_ac3_extract_exponents_neon, export=1 |
||
| 98 | vmov.i32 q15, #8 |
||
| 99 | 1: |
||
| 100 | vld1.32 {q0}, [r1,:128]! |
||
| 101 | vabs.s32 q1, q0 |
||
| 102 | vclz.i32 q3, q1 |
||
| 103 | vsub.i32 q3, q3, q15 |
||
| 104 | vmovn.i32 d6, q3 |
||
| 105 | vmovn.i16 d6, q3 |
||
| 106 | vst1.32 {d6[0]}, [r0,:32]! |
||
| 107 | subs r2, r2, #4 |
||
| 108 | bgt 1b |
||
| 109 | bx lr |
||
| 110 | endfunc |
||
| 111 | |||
| 112 | function ff_ac3_sum_square_butterfly_int32_neon, export=1 |
||
| 113 | vmov.i64 q0, #0 |
||
| 114 | vmov.i64 q1, #0 |
||
| 115 | vmov.i64 q2, #0 |
||
| 116 | vmov.i64 q3, #0 |
||
| 117 | 1: |
||
| 118 | vld1.32 {d16}, [r1]! |
||
| 119 | vld1.32 {d17}, [r2]! |
||
| 120 | vadd.s32 d18, d16, d17 |
||
| 121 | vsub.s32 d19, d16, d17 |
||
| 122 | vmlal.s32 q0, d16, d16 |
||
| 123 | vmlal.s32 q1, d17, d17 |
||
| 124 | vmlal.s32 q2, d18, d18 |
||
| 125 | vmlal.s32 q3, d19, d19 |
||
| 126 | subs r3, r3, #2 |
||
| 127 | bgt 1b |
||
| 128 | vadd.s64 d0, d0, d1 |
||
| 129 | vadd.s64 d1, d2, d3 |
||
| 130 | vadd.s64 d2, d4, d5 |
||
| 131 | vadd.s64 d3, d6, d7 |
||
| 132 | vst1.64 {q0-q1}, [r0] |
||
| 133 | bx lr |
||
| 134 | endfunc |
||
| 135 | |||
| 136 | function ff_ac3_sum_square_butterfly_float_neon, export=1 |
||
| 137 | vmov.f32 q0, #0.0 |
||
| 138 | vmov.f32 q1, #0.0 |
||
| 139 | 1: |
||
| 140 | vld1.32 {d16}, [r1]! |
||
| 141 | vld1.32 {d17}, [r2]! |
||
| 142 | vadd.f32 d18, d16, d17 |
||
| 143 | vsub.f32 d19, d16, d17 |
||
| 144 | vmla.f32 d0, d16, d16 |
||
| 145 | vmla.f32 d1, d17, d17 |
||
| 146 | vmla.f32 d2, d18, d18 |
||
| 147 | vmla.f32 d3, d19, d19 |
||
| 148 | subs r3, r3, #2 |
||
| 149 | bgt 1b |
||
| 150 | vpadd.f32 d0, d0, d1 |
||
| 151 | vpadd.f32 d1, d2, d3 |
||
| 152 | vst1.32 {q0}, [r0] |
||
| 153 | bx lr |
||
| 154 | endfunc |