1 #ifndef DALI_INTERNAL_MATH_H
2 #define DALI_INTERNAL_MATH_H
5 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
28 typedef float Vec3[3];
29 typedef float Vec4[4];
30 typedef float Mat4[16];
33 * @brief Applies a transformation matrix to a Vector3
35 * @param[out] result The transformed vector
36 * @param[in] m The transformation matrix
37 * @param[in] v The vector to transform
39 void TransformVector3(Vec3 result, const Mat4 m, const Vec3 v);
42 * @brief Applies a transformation matrix to a Vector2
43 * Note: This performs an optimized 2D transformation.
45 * @param[in] matrix The matrix to transform by
46 * @param[in] x The x coordinate to multiply the matrix by
47 * @param[in] y The y coordinate to multiply the matrix by
48 * @return A Vector2 containing the resulting coordinates
50 Vector2 Transform2D(const Matrix& matrix, const float x, const float y);
53 * @brief Computes the length of a vector3
55 * @param[in] v The vector
56 * @return The lenght of the vector
58 float Length(const Vec3 v);
60 } // namespace Internal
64 #endif // DALI_INTERNAL_MATH_H