OpenGL ES SDK for Android ARM Developer Center
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
Matrix.h
Go to the documentation of this file.
1 /* Copyright (c) 2014-2017, ARM Limited and Contributors
2  *
3  * SPDX-License-Identifier: MIT
4  *
5  * Permission is hereby granted, free of charge,
6  * to any person obtaining a copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation the rights to
8  * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
9  * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
14  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
16  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
17  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
19  */
20 
21 #ifndef MATRIX_H
22 #define MATRIX_H
23 
24 namespace AstcTextures
25 {
29  class Matrix
30  {
31  private:
36  float elements[16];
37 
46  static Matrix multiply(Matrix* left, Matrix* right);
47 
51  static const float identityArray[];
52 
53  public:
59  float* getAsArray(void);
60 
64  Matrix(void);
65 
72  float& operator[](unsigned element);
73 
80  Matrix operator*(Matrix right);
81 
85  Matrix& operator=(const Matrix& another);
86 
92  Matrix(const float* array);
93 
100 
107  static Matrix createRotationX(float angle);
108 
115  static Matrix createRotationY(float angle);
116 
123  static Matrix createRotationZ(float angle);
124 
138  static Matrix matrixOrthographic(float left, float right, float bottom, float top, float zNear, float zFar);
139 
150  static Matrix matrixPerspective(float FOV, float ratio, float zNear, float zFar);
151  };
152 }
153 #endif /* MATRIX_H */
static Matrix identityMatrix
The identity matrix.
Definition: Matrix.h:99
static Matrix createRotationY(float angle)
Create and return a rotation matrix around the y-axis matrix.
Definition: Matrix.cpp:135
Functions for manipulating matrices.
Definition: Matrix.h:29
float angle
Definition: Native.cpp:158
static Matrix matrixOrthographic(float left, float right, float bottom, float top, float zNear, float zFar)
Create and return an orthographic projection matrix.
Definition: Matrix.cpp:87
float & operator[](unsigned element)
Array operator for accessing the elements of the matrix.
Definition: Matrix.cpp:58
static const float identityArray[]
A 4x4 identity Matrix;.
Definition: Matrix.h:51
Matrix operator*(Matrix right)
Multiply operator to post multiply a matrix by another.
Definition: Matrix.cpp:70
static Matrix createRotationX(float angle)
Create and return a rotation matrix around the x-axis matrix.
Definition: Matrix.cpp:121
static Matrix multiply(Matrix *left, Matrix *right)
Multiply 2 matrices to return a third.
Definition: Matrix.cpp:163
float * getAsArray(void)
Get the matrix elements as a column major order array.
Definition: Matrix.cpp:52
Matrix & operator=(const Matrix &another)
Overloading assingment operater to do deep copy of the Matrix elements.
Definition: Matrix.cpp:76
GLint left
Definition: gl2ext.h:2704
static Matrix createRotationZ(float angle)
Create and return a rotation matrix around the z-axis matrix.
Definition: Matrix.cpp:149
static Matrix matrixPerspective(float FOV, float ratio, float zNear, float zFar)
Create and return a perspective projection matrix.
Definition: Matrix.cpp:104
Matrix(void)
Default constructor.
Definition: Matrix.cpp:49
float elements[16]
A 16 element floating point array used to represent a 4x4 matrix.
Definition: Matrix.h:36
GLint GLint bottom
Definition: gl2ext.h:2704