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/*
* Copyright (C) 2009 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 com.android.testframerate;
import android.content.Context;
import android.opengl.GLSurfaceView;
import android.os.SystemProperties;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.egl.EGLContext;
import javax.microedition.khronos.egl.EGLDisplay;
import javax.microedition.khronos.opengles.GL10;
import android.opengl.GLES20;
class TestFramerateView extends GLSurfaceView {
private static String TAG = "TestFramerateView";
public TestFramerateView(Context context) {
super(context);
setEGLContextClientVersion(2);
setRenderer(new Renderer());
}
private long mLastTime_us = 0;
private long mNumShortFramesElapsed = 0;
private void registerTime(long now_us) {
long longFrameTime_ms = Integer.parseInt(SystemProperties.get("debug.longframe_ms", "16"));
long elapsedTime_us = now_us - mLastTime_us;
float fps = 1000000.f / elapsedTime_us;
if (mLastTime_us > 0 && elapsedTime_us > longFrameTime_ms*1000) {
Log.v(TAG, "Long frame: " + elapsedTime_us/1000.f + " ms (" + fps + " fps)");
if (mNumShortFramesElapsed > 0) {
Log.v(TAG, " Short frames since last long frame: " + mNumShortFramesElapsed);
mNumShortFramesElapsed = 0;
}
} else {
++mNumShortFramesElapsed;
}
mLastTime_us = now_us;
}
private class Renderer implements GLSurfaceView.Renderer {
public Renderer() {
}
public void onDrawFrame(GL10 gl) {
long now_us = System.nanoTime() / 1000;
registerTime(now_us);
float red = (now_us % 1000000) / 1000000.f;
float green = (now_us % 2000000) / 2000000.f;
float blue = (now_us % 3000000) / 3000000.f;
GLES20.glClearColor(red, green, blue, 1.0f);
GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT);
}
public void onSurfaceChanged(GL10 gl, int width, int height) {
GLES20.glViewport(0, 0, width, height);
}
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
}
}
}
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