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
20namespace 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