| // math_util.h | |
| // | |
| // Copyright (C) 2020 Dan Rodrigues <danrr.gh.oss@gmail.com> | |
| // | |
| // SPDX-License-Identifier: MIT | |
| #ifndef math_util_h | |
| #define math_util_h | |
| #include <stdint.h> | |
| #define MIN(a, b) (((a) < (b)) ? (a) : (b)) | |
| #define MAX(a, b) (((a) > (b)) ? (a) : (b)) | |
| #define ABS(a) (((a) < 0) ? (-(a)) : (a)) | |
| #define SIGN(a) ((a) < 0) | |
| static const uint16_t SIN_PERIOD = 0x400; | |
| static const int16_t SIN_MAX = 0x4000; | |
| int16_t cos(uint16_t angle); | |
| int16_t sin(uint16_t angle); | |
| #endif |