1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. 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 distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 #include "PerspectiveProgram.h" 16 17 #include <EGL/egl.h> 18 #include <GLES2/gl2.h> 19 #include <GLES2/gl2ext.h> 20 21 PerspectiveProgram::PerspectiveProgram(GLuint programId) : 22 Program(programId) { 23 mLightPosInModelSpace[0] = 0.0f; 24 mLightPosInModelSpace[1] = 0.0f; 25 mLightPosInModelSpace[2] = 1.0f; 26 mLightPosInModelSpace[3] = 2.0f; 27 mMVMatrixHandle = glGetUniformLocation(programId, "u_MVMatrix"); 28 mMVPMatrixHandle = glGetUniformLocation(programId, "u_MVPMatrix"); 29 mLightPosHandle = glGetUniformLocation(programId, "u_LightPos"); 30 } 31 32 void PerspectiveProgram::before(Matrix& model, Matrix& view, Matrix& projection) { 33 Program::before(model, view, projection); 34 mLightModelMatrix.identity(); 35 36 Matrix::multiplyVector(mLightPosInWorldSpace, mLightModelMatrix, mLightPosInModelSpace); 37 Matrix::multiplyVector(mLightPosInEyeSpace, view, mLightPosInWorldSpace); 38 } 39
