1/*
2 * Copyright (C) 2009 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
17package com.android.testframerate;
18
19import android.content.Context;
20import android.opengl.GLSurfaceView;
21import android.os.SystemProperties;
22import android.util.AttributeSet;
23import android.util.Log;
24import android.view.KeyEvent;
25import android.view.MotionEvent;
26
27import java.nio.ByteBuffer;
28import java.nio.ByteOrder;
29import java.nio.FloatBuffer;
30
31import javax.microedition.khronos.egl.EGL10;
32import javax.microedition.khronos.egl.EGLConfig;
33import javax.microedition.khronos.egl.EGLContext;
34import javax.microedition.khronos.egl.EGLDisplay;
35import javax.microedition.khronos.opengles.GL10;
36
37import android.opengl.GLES20;
38
39class TestFramerateView extends GLSurfaceView {
40    private static String TAG = "TestFramerateView";
41
42    public TestFramerateView(Context context) {
43        super(context);
44        setEGLContextClientVersion(2);
45        setRenderer(new Renderer());
46    }
47
48    private long mLastTime_us = 0;
49    private long mNumShortFramesElapsed = 0;
50    private void registerTime(long now_us) {
51        long longFrameTime_ms = Integer.parseInt(SystemProperties.get("debug.longframe_ms", "16"));
52        long elapsedTime_us = now_us - mLastTime_us;
53        float fps = 1000000.f / elapsedTime_us;
54        if (mLastTime_us > 0 && elapsedTime_us > longFrameTime_ms*1000) {
55          Log.v(TAG, "Long frame: " + elapsedTime_us/1000.f + " ms (" + fps + " fps)");
56          if (mNumShortFramesElapsed > 0) {
57            Log.v(TAG, "  Short frames since last long frame: " + mNumShortFramesElapsed);
58            mNumShortFramesElapsed = 0;
59          }
60        } else {
61            ++mNumShortFramesElapsed;
62        }
63
64        mLastTime_us = now_us;
65    }
66
67    private class Renderer implements GLSurfaceView.Renderer {
68        public Renderer() {
69        }
70
71
72        public void onDrawFrame(GL10 gl) {
73            long now_us = System.nanoTime() / 1000;
74            registerTime(now_us);
75
76            float red = (now_us % 1000000) / 1000000.f;
77            float green = (now_us % 2000000) / 2000000.f;
78            float blue = (now_us % 3000000) / 3000000.f;
79            GLES20.glClearColor(red, green, blue, 1.0f);
80            GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
81        }
82
83        public void onSurfaceChanged(GL10 gl, int width, int height) {
84            GLES20.glViewport(0, 0, width, height);
85        }
86
87        public void onSurfaceCreated(GL10 gl, EGLConfig config) {
88        }
89
90    }
91}
92