restructured some files

tools/gl/math/mat3.h

@@ -0,0 +1,43 @@
+#ifndef MATH_MATRIX3_H
+#define MATH_MATRIX3_H
+
+#include <iostream>
+#include <cmath>
+
+class Mat4;
+
+class Mat3 {
+public:
+	union {
+	float e[3][3];
+	float cr[9];
+	};
+
+	Mat3(void);
+	Mat3(float f);
+	Mat3(float *f);
+	Mat3(float e00, float e10, float e20,
+	     float e01, float e11, float e21,
+	     float e02, float e12, float e22);
+	Mat3(const Mat4 &m);
+	float *ptr(void);
+	static Mat3 rotation(float theta, const Vec3 &v);
+	static Mat3 rotation(const Quat &v);
+	static Mat3 scale(const Vec3 &v);
+	Mat3 transpose(void) const;
+	Mat3 operator+(const Mat3 &rhs) const;
+	Mat3 operator-(const Mat3 &rhs) const;
+	Mat3 operator*(float rhs) const;
+	Mat3 operator/(float rhs) const;
+	Mat3 operator*(const Mat3 &rhs) const;
+	Vec3 operator*(const Vec3 &rhs) const;
+	Mat3 &operator+=(const Mat3 &rhs);
+	Mat3 &operator-=(const Mat3 &rhs);
+	Mat3 &operator*=(float rhs);
+	Mat3 &operator/=(float rhs);
+	Mat3 &operator*=(const Mat3 &rhs);
+	void print(std::ostream &of) const;
+};
+
+#endif
+