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1 #ifndef GMATH_MATRIX_H_
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2 #define GMATH_MATRIX_H_
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3
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4 #include <string.h>
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5 #include "vector.h"
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6
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7 namespace gph {
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8
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9 class Matrix4x4 {
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10 private:
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11 float m[4][4];
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12
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13 public:
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14 static Matrix4x4 identity;
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15
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16 Matrix4x4()
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17 {
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18 memcpy((float*)m, (const float*)identity.m, 16 * sizeof(float));
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19 }
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20
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21 Matrix4x4(const float *m)
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22 {
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23 memcpy((float*)this->m, (const float*)m, 16 * sizeof(float));
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24 }
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25
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26 Matrix4x4(float m00, float m01, float m02, float m03,
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27 float m10, float m11, float m12, float m13,
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28 float m20, float m21, float m22, float m23,
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29 float m30, float m31, float m32, float m33)
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30 {
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31 m[0][0] = m00; m[0][1] = m01; m[0][2] = m02; m[0][3] = m03;
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32 m[1][0] = m10; m[1][1] = m11; m[1][2] = m12; m[1][3] = m13;
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33 m[2][0] = m20; m[2][1] = m21; m[2][2] = m22; m[2][3] = m23;
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34 m[3][0] = m30; m[3][1] = m31; m[3][2] = m32; m[3][3] = m33;
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35 }
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36
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37 Matrix4x4(const Vector4 &v0, const Vector4 &v1, const Vector4 &v2, const Vector4 &v3)
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38 {
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39 m[0][0] = v0.x; m[0][1] = v0.y; m[0][2] = v0.z; m[0][3] = v0.w;
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40 m[1][0] = v1.x; m[1][1] = v1.y; m[1][2] = v1.z; m[1][3] = v1.w;
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41 m[2][0] = v2.x; m[2][1] = v2.y; m[2][2] = v2.z; m[2][3] = v2.w;
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42 m[3][0] = v3.x; m[3][1] = v3.y; m[3][2] = v3.z; m[3][3] = v3.w;
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43 }
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44
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45 float *operator [](int idx)
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46 {
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47 return m[idx];
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48 }
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49
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50 const float *operator [](int idx) const
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51 {
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52 return m[idx];
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53 }
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54 };
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55
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56 } // namespace gph
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57
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58 #endif // GMATH_MATRIX_H_
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