| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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. |
| */ |
| package android.gameperformance; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Random; |
| |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.opengles.GL10; |
| |
| import android.content.Context; |
| import android.opengl.GLES20; |
| import android.opengl.GLSurfaceView; |
| |
| public class CustomOpenGLView extends GLSurfaceView { |
| private Random mRandom; |
| private List<Long> mFrameTimes; |
| |
| public CustomOpenGLView(Context context) { |
| super(context); |
| |
| mRandom = new Random(); |
| mFrameTimes = new ArrayList<Long>(); |
| |
| setEGLContextClientVersion(2); |
| |
| setRenderer(new GLSurfaceView.Renderer() { |
| @Override |
| public void onSurfaceCreated(GL10 gl, EGLConfig config) { |
| GLES20.glClearColor(1.0f, 0.0f, 0.0f, 1.0f); |
| gl.glClearDepthf(1.0f); |
| gl.glEnable(GL10.GL_DEPTH_TEST); |
| gl.glDepthFunc(GL10.GL_LEQUAL); |
| |
| gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, |
| GL10.GL_NICEST); } |
| |
| @Override |
| public void onSurfaceChanged(GL10 gl, int width, int height) { |
| GLES20.glViewport(0, 0, width, height); |
| } |
| |
| @Override |
| public void onDrawFrame(GL10 gl) { |
| GLES20.glClearColor( |
| mRandom.nextFloat(), mRandom.nextFloat(), mRandom.nextFloat(), 1.0f); |
| gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); |
| synchronized (mFrameTimes) { |
| mFrameTimes.add(System.currentTimeMillis()); |
| } |
| } |
| }); |
| setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY); |
| } |
| |
| /** |
| * Resets frame times in order to calculate fps for different test pass. |
| */ |
| public void resetFrameTimes() { |
| synchronized (mFrameTimes) { |
| mFrameTimes.clear(); |
| } |
| } |
| |
| /** |
| * Returns current fps based on collected frame times. |
| */ |
| public double getFps() { |
| synchronized (mFrameTimes) { |
| if (mFrameTimes.size() < 2) { |
| return 0.0f; |
| } |
| return 1000.0 * mFrameTimes.size() / |
| (mFrameTimes.get(mFrameTimes.size() - 1) - mFrameTimes.get(0)); |
| } |
| } |
| } |