1 files changed, 94 insertions, 0 deletions
diff --git a/source/LoG/math/matrix44.h b/source/LoG/math/matrix44.h
new file mode 100644
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+++ b/source/LoG/math/matrix44.h
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+#ifndef __LOG_MAT44_H__
+#define __LOG_MAT44_H__
+
+
+//
+// 4x4矩阵，不需要转置，直接运用在Opengl中，由于opengl的glUniformMatrix按列填入矩阵，进行
+// 的是和列向量的右乘，为了不需要转置，直接使用按列定义的矩阵。保证矩阵的内存排列和输入opengl
+// 的统一
+//
+class Matrix44
+{
+public:
+
+	static const Matrix44 Identity;
+
+	Matrix44();
+
+	Matrix44(const Matrix44& m);
+
+	~Matrix44();
+
+	void operator = (const Matrix44& m);
+
+	void SetOrtho(float _left, float _right, float _bottom, float _top, float _near, float _far);
+
+	Matrix44 operator * (const Matrix44 & m) const;
+
+	void operator *= (const Matrix44 & m);
+
+	const float* GetElements() const;
+
+	void SetIdentity();
+
+	void SetTranslation(float x, float y);
+
+	void SetRotation(float r);
+
+	void SetScale(float sx, float sy);
+
+	void SetShear(float kx, float ky);
+
+	void SetTransformation(float x, float y, float angle, float sx, float sy, float ox, float oy);
+
+	void Translate(float x, float y);
+
+	//
+	// 饶xyz轴旋转
+	//
+	void Rotate(float r, float x, float y, float z);
+
+	void Scale(float sx, float sy);
+
+	void Transform(float x, float y, float angle, float sx, float sy, float ox, float oy);
+
+	// 
+	// Multiplies this Matrix44 with a shear transformation.
+	// @param kx Shear along the x-axis.
+	// @param ky Shear along the y-axis.
+	// 
+	void Shear(float kx, float ky);
+
+	void Ortho(float left, float right, float bottom, float top, float near, float far);
+
+	//// 
+	//// Transforms an array of vertices by this Matrix44. The sources and
+	//// destination arrays may be the same.
+	////
+	//// @param dst Storage for the transformed vertices.
+	//// @param src The source vertices.
+	//// @param size The number of vertices.
+	//// 
+	//void transform(Graphics::Vertex* dst, const Graphics::Vertex * src, int size) const;
+
+	//
+	// 
+	//
+	void Frustum(float l, float r, float t, float b, float near, float far);
+
+	void Perspective(float fov, float aspect, float near, float far);
+
+private:
+
+	// 
+	// | e0 e4 e8  e12 |
+	// | e1 e5 e9  e13 |
+	// | e2 e6 e10 e14 |
+	// | e3 e7 e11 e15 |
+	//
+	float e[16];
+
+};
+
+
+#endif
+\ No newline at end of file