| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _CPU_NANOHUB_MATH_H_ |
| #define _CPU_NANOHUB_MATH_H_ |
| |
| |
| #define asinf arm_asinf |
| #define sinf arm_sin_f32 |
| #define cosf arm_cos_f32 |
| #define sqrtf arm_sqrtf |
| |
| |
| |
| static inline float arm_sqrtf(float val) |
| { |
| float ret; |
| |
| asm( |
| "vsqrt.f32 %0, %1" |
| : "=w" (ret) |
| :"w" (val) |
| ); |
| |
| return ret; |
| } |
| |
| float atan2f(float, float); |
| |
| static inline float arm_asinf(float x) |
| { |
| return atan2f(x, sqrtf(1.0f - x * x)); |
| } |
| |
| #endif |