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 
17 package com.android.test.hwuicompare;
18 
19 import java.lang.reflect.InvocationTargetException;
20 import java.lang.reflect.Method;
21 
22 import com.android.test.hwuicompare.R;
23 
24 import android.app.Activity;
25 import android.graphics.Bitmap;
26 import android.graphics.Canvas;
27 import android.graphics.Color;
28 import android.graphics.drawable.ColorDrawable;
29 import android.os.Handler;
30 import android.os.Trace;
31 import android.util.Log;
32 import android.view.View;
33 
34 abstract public class CompareActivity extends Activity {
35     private static final String LOG_TAG = "CompareActivity";
36 
37     protected MainView mHardwareView = null;
38 
39     protected Bitmap mSoftwareBitmap;
40     protected Bitmap mHardwareBitmap;
41 
42     protected ErrorCalculator mErrorCalculator;
43 
44     protected Handler mHandler;
45 
46     Runnable mDrawCallback = null;
47     protected boolean mRedrewFlag = true;
48 
onCreateCommon(final Runnable postDrawCallback)49     protected void onCreateCommon(final Runnable postDrawCallback) {
50         mDrawCallback = new Runnable() {
51             @Override
52             public void run() {
53                 mRedrewFlag = true;
54                 mHandler.post(postDrawCallback);
55             };
56         };
57         getWindow().setBackgroundDrawable(new ColorDrawable(0xffefefef));
58         ResourceModifiers.init(getResources());
59 
60         mHardwareView = (MainView) findViewById(R.id.hardware_view);
61         mHardwareView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
62         mHardwareView.setBackgroundColor(Color.WHITE);
63         mHardwareView.addDrawCallback(mDrawCallback);
64 
65         int width = getResources().getDimensionPixelSize(R.dimen.layer_width);
66         int height = getResources().getDimensionPixelSize(R.dimen.layer_height);
67         mSoftwareBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
68         mHardwareBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
69 
70         mErrorCalculator = new ErrorCalculator(getApplicationContext(), getResources());
71 
72         mHandler = new Handler();
73     }
74 
forceRecreateBitmaps()75     protected abstract boolean forceRecreateBitmaps();
76 
loadBitmaps()77     protected void loadBitmaps() {
78         Trace.traceBegin(Trace.TRACE_TAG_ALWAYS, "loadBitmaps");
79         if (forceRecreateBitmaps()) {
80             int width = mSoftwareBitmap.getWidth();
81             int height = mSoftwareBitmap.getHeight();
82 
83             mSoftwareBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
84             mHardwareBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
85         }
86 
87         Trace.traceBegin(Trace.TRACE_TAG_ALWAYS, "softwareDraw");
88         mHardwareView.draw(new Canvas(mSoftwareBitmap));
89         Trace.traceEnd(Trace.TRACE_TAG_ALWAYS);
90 
91         try {
92             Method getHardwareLayer = View.class.getDeclaredMethod("getHardwareLayer");
93             if (!getHardwareLayer.isAccessible())
94                 getHardwareLayer.setAccessible(true);
95             Object hardwareLayer = getHardwareLayer.invoke(mHardwareView);
96             if (hardwareLayer == null) {
97                 Log.d(LOG_TAG, "failure to access hardware layer");
98                 return;
99             }
100             Method copyInto = hardwareLayer.getClass()
101                     .getDeclaredMethod("copyInto", Bitmap.class);
102             if (!copyInto.isAccessible())
103                 copyInto.setAccessible(true);
104 
105             Trace.traceBegin(Trace.TRACE_TAG_ALWAYS, "copyInto");
106             boolean success = (Boolean) copyInto.invoke(hardwareLayer, mHardwareBitmap);
107             Trace.traceEnd(Trace.TRACE_TAG_ALWAYS);
108             if (!success) {
109                 Log.d(LOG_TAG, "failure to copy hardware layer into bitmap");
110             }
111         } catch (NoSuchMethodException e) {
112             e.printStackTrace();
113         } catch (IllegalArgumentException e) {
114             e.printStackTrace();
115         } catch (IllegalAccessException e) {
116             e.printStackTrace();
117         } catch (InvocationTargetException e) {
118             e.printStackTrace();
119         }
120         Trace.traceEnd(Trace.TRACE_TAG_ALWAYS);
121     }
122 }
123