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mat2.h
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219 lines (131 loc) · 4.35 KB
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/*
* mat2.h - 4D Matrix math module for C/C++
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#if defined (__cplusplus)
# pragma once
#endif /* __cplusplus */
#if !defined (_mat2_h_)
# define _mat2_h_ 1
#
# if !defined (MATHAPI_STATIC) && !defined (MATHAPI_EXTERN)
# define MATHAPI_EXTERN 1
# endif /* MATHAPI_STATIC, MATHAPI_EXTERN */
# if !defined (MATHAPI)
# if defined (MATHAPI_STATIC)
# define MATHAPI static inline
# define MATHAPI_IMPLEMENTATION 1
# endif /* MATHAPI_STATIC */
# if defined (MATHAPI_EXTERN)
# define MATHAPI extern
# endif /* MATHAPI_EXTERN */
# endif /* MATHAPI */
#
# include "./struct.h"
#
# if defined (__cplusplus)
extern "C" {
# endif /* __cplusplus */
MATHAPI mat2 mat2Zero(void);
MATHAPI mat2 mat2Identity(void);
MATHAPI mat2 mat2Copy(const mat2);
MATHAPI mat2 mat2Add(const mat2, const mat2);
MATHAPI mat2 mat2Sub(const mat2, const mat2);
MATHAPI mat2 mat2Mul(const mat2, const mat2);
MATHAPI mat2 mat2Mulf(const mat2, const float);
MATHAPI int mat2Equals(const mat2, const mat2);
MATHAPI float mat2Det(const mat2);
# if defined (__cplusplus)
}
# endif /* __cplusplus */
#
# if defined (__cplusplus)
# if !defined (MATH_DISABLE_CPP_OPERATORS)
MATHAPI mat2 operator + (const mat2 &, const mat2 &);
MATHAPI const mat2& operator += (mat2 &, const mat2 &);
MATHAPI mat2 operator - (const mat2 &, const mat2 &);
MATHAPI const mat2& operator -= (mat2 &, const mat2 &);
MATHAPI mat2 operator * (const mat2 &, const mat2 &);
MATHAPI const mat2& operator *= (mat2 &, const mat2 &);
MATHAPI bool operator == (const mat2 &, const mat2 &);
MATHAPI bool operator != (const mat2 &, const mat2 &);
# endif /* MATH_DISABLE_CPP_OPERATORS */
# endif /* __cplusplus */
#
# if defined (MATHAPI_IMPLEMENTATION)
#
# if defined (__cplusplus)
extern "C" {
# endif /* __cplusplus */
MATHAPI mat2 mat2Zero(void) {
mat2 mat = {{ 0.0, 0.0,
0.0, 0.0 }};
return (mat);
}
MATHAPI mat2 mat2Identity(void) {
mat2 mat = {{ 1.0, 0.0,
0.0, 1.0 }};
return (mat);
}
MATHAPI mat2 mat2Copy(const mat2 m0) {
mat2 mat = {{ m0.m00, m0.m01,
m0.m10, m0.m11 }};
return (mat);
}
MATHAPI mat2 mat2Add(const mat2 m0, const mat2 m1) {
mat2 mat;
mat.m00 = m0.m00 + m1.m00;
mat.m01 = m0.m01 + m1.m01;
mat.m10 = m0.m10 + m1.m10;
mat.m11 = m0.m11 + m1.m11;
return (mat);
}
MATHAPI mat2 mat2Sub(const mat2 m0, const mat2 m1) {
mat2 mat;
mat.m00 = m0.m00 - m1.m00;
mat.m01 = m0.m01 - m1.m01;
mat.m10 = m0.m10 - m1.m10;
mat.m11 = m0.m11 - m1.m11;
return (mat);
}
MATHAPI mat2 mat2Mul(const mat2 m0, const mat2 m1) {
mat2 mat;
mat.m00 = m0.m00 * m1.m00 + m0.m10 * m1.m01;
mat.m01 = m0.m01 * m1.m00 + m0.m11 * m1.m01;
mat.m10 = m0.m00 * m1.m10 + m0.m10 * m1.m11;
mat.m11 = m0.m01 * m1.m10 + m0.m11 * m1.m11;
return (mat);
}
MATHAPI mat2 mat2Mulf(const mat2 m0, const float f) {
mat2 mat;
mat.m00 = m0.m00 * f;
mat.m01 = m0.m01 * f;
mat.m10 = m0.m10 * f;
mat.m11 = m0.m11 * f;
return (mat);
}
MATHAPI int mat2Equals(const mat2 m0, const mat2 m1) {
return (m0.m00 == m1.m00 && m0.m01 == m1.m01 &&
m0.m10 == m1.m10 && m0.m11 == m1.m11);
}
MATHAPI float mat2Det(const mat2 m0) {
return (m0.m00 * m0.m11 - m0.m10 * m0.m01);
}
# if defined (__cplusplus)
}
# endif /* __cplusplus */
#
# if defined (__cplusplus)
# if !defined (MATH_DISABLE_CPP_OPERATORS)
MATHAPI mat2 operator + (const mat2 &v0, const mat2 &v1) { return (mat2Add(v0, v1)); }
MATHAPI const mat2& operator += (mat2 &v0, const mat2 &v1) { return ((v0 = mat2Add(v0, v1))); }
MATHAPI mat2 operator - (const mat2 &v0, const mat2 &v1) { return (mat2Sub(v0, v1)); }
MATHAPI const mat2& operator -= (mat2 &v0, const mat2 &v1) { return ((v0 = mat2Sub(v0, v1))); }
MATHAPI mat2 operator * (const mat2 &v0, const mat2 &v1) { return (mat2Mul(v0, v1)); }
MATHAPI const mat2& operator *= (mat2 &v0, const mat2 &v1) { return ((v0 = mat2Mul(v0, v1))); }
MATHAPI bool operator == (const mat2 &v0, const mat2 &v1) { return (mat2Equals(v0, v1)); }
MATHAPI bool operator != (const mat2 &v0, const mat2 &v1) { return (!mat2Equals(v0, v1)); }
# endif /* MATH_DISABLE_CPP_OPERATORS */
# endif /* __cplusplus */
# endif /* MATHAPI_IMPLEMENTATION */
#endif /* _mat2_h_ */