blob: 095b7f2e6ac5265de81f5c6ae704422bd4100991 [file] [log] [blame]
 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "Plane.hpp" #include "Matrix.hpp" namespace sw { Plane::Plane() { } Plane::Plane(float p_A, float p_B, float p_C, float p_D) { A = p_A; B = p_B; C = p_C; D = p_D; } Plane::Plane(const float ABCD[4]) { A = ABCD[0]; B = ABCD[1]; C = ABCD[2]; D = ABCD[3]; } Plane operator*(const Plane &p, const Matrix &T) { Matrix M = !T; return Plane(p.A * M(1, 1) + p.B * M(1, 2) + p.C * M(1, 3) + p.D * M(1, 4), p.A * M(2, 1) + p.B * M(2, 2) + p.C * M(2, 3) + p.D * M(2, 4), p.A * M(3, 1) + p.B * M(3, 2) + p.C * M(3, 3) + p.D * M(3, 4), p.A * M(4, 1) + p.B * M(4, 2) + p.C * M(4, 3) + p.D * M(4, 4)); } Plane operator*(const Matrix &T, const Plane &p) { Matrix M = !T; return Plane(M(1, 1) * p.A + M(2, 1) * p.B + M(3, 1) * p.C + M(4, 1) * p.D, M(1, 2) * p.A + M(2, 2) * p.B + M(3, 2) * p.C + M(4, 2) * p.D, M(1, 3) * p.A + M(2, 3) * p.B + M(3, 3) * p.C + M(4, 3) * p.D, M(1, 4) * p.A + M(2, 4) * p.B + M(3, 4) * p.C + M(4, 4) * p.D); } }