1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package android.opengl.cts; 17 18 import java.nio.FloatBuffer; 19 20 import javax.microedition.khronos.opengles.GL10; 21 22 import android.opengl.GLES20; 23 import android.opengl.GLSurfaceView; 24 import android.opengl.GLSurfaceView.Renderer; 25 26 import java.util.concurrent.CountDownLatch; 27 28 public abstract class RendererBase implements GLSurfaceView.Renderer { 29 30 FloatBuffer floatBuffer; 31 int mProgram; 32 int maPositionHandle; 33 float[] mColorOne = new float[4]; 34 35 int[] mShaderCount = null; 36 int mError; 37 String mInfoLog = null; 38 39 // child may need to manipulate them directly 40 protected CountDownLatch mLatch; 41 protected boolean mDrawn = false; 42 RendererBase(CountDownLatch latch)43 public RendererBase(CountDownLatch latch) { 44 mLatch = latch; 45 } 46 47 @Override onSurfaceChanged(GL10 gl, int width, int height)48 public void onSurfaceChanged(GL10 gl, int width, int height) { 49 50 } 51 loadShader(int type, String shaderCode)52 public int loadShader(int type, String shaderCode) { 53 int shader = GLES20.glCreateShader(type); 54 GLES20.glShaderSource(shader, shaderCode); 55 GLES20.glCompileShader(shader); 56 mInfoLog = GLES20.glGetShaderInfoLog(shader); 57 return shader; 58 } 59 60 @Override onDrawFrame(GL10 gl)61 public void onDrawFrame(GL10 gl) { 62 if (mDrawn) { 63 return; 64 } 65 mDrawn = true; 66 doOnDrawFrame(gl); 67 mLatch.countDown(); 68 } 69 70 /// dummy method to be overridden by child doOnDrawFrame(GL10 gl)71 public void doOnDrawFrame(GL10 gl) { 72 } 73 } 74