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
PerspectiveProgram(GLuint programId)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
before(Matrix & model,Matrix & view,Matrix & projection)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