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- /*
- This software is subject to the license described in the License.txt file
- included with this software distribution. You may not use this file except in compliance
- with this license.
- Copyright (c) Dynastream Innovations Inc. 2013
- All rights reserved.
- */
- #ifndef DSI_DEFINES_H
- #define DSI_DEFINES_H
- #include "types.h"
- //////////////////////////////////////////////////////////////////////////////////
- // Public Definitions
- //////////////////////////////////////////////////////////////////////////////////
- #define KELVIN 273.15F
- #define G 9.80665F // m/s2
- #define PI 3.14159265359F
- #define RADTODEG(x) ((x) * 360.0F / (2.0F * PI))
- #define DEGTORAD(x) ((x) * (2.0F * PI) / 360.0F)
- #define CTOK(x) ((x) + KELVIN)
- #define KTOC(x) ((x) - KELVIN)
- #define MIN(x, y) (((x) < (y)) ? (x) : (y))
- #define MAX(x, y) (((x) > (y)) ? (x) : (y))
- #define SQR(x) ((x) * (x))
- #define UINTDIV(x, y) (((x) + (y) / 2) / (y)) // Unsigned integer division, x / y rounded to the nearest integer
- #define ROUND_BIAS(x) ((x) < 0 ? -0.5F : 0.5F)
- #define ROUND_FLOAT(x) ((x) + ROUND_BIAS(x))
- // The following macro computes offset (in bytes) of a member in a
- // structure. This compiles to a constant if a constant member is
- // supplied as arg.
- #define STRUCT_OFFSET(MEMBER, STRUCT_TYPE) ( ((UCHAR *) &(((STRUCT_TYPE *) NULL)->MEMBER)) - ((UCHAR *) (NULL)) )
- #endif // defined(DSI_DEFINES_H)
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