1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef Plane_hpp 16 #define Plane_hpp 17 18 #include "Vector.hpp" 19 20 namespace sw 21 { 22 struct Matrix; 23 24 struct Plane 25 { 26 float A; 27 float B; 28 float C; 29 float D; 30 31 Plane(); 32 Plane(float A, float B, float C, float D); // Plane equation 33 Plane(const float ABCD[4]); 34 35 friend Plane operator*(const Plane &p, const Matrix &A); // Transform plane by matrix (post-multiply) 36 friend Plane operator*(const Matrix &A, const Plane &p); // Transform plane by matrix (pre-multiply) 37 }; 38 } 39 40 #endif // Plane_hpp 41
