1/*
2 * Copyright (C) 2015 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 */
16package com.android.test.uibench;
17
18import android.animation.ObjectAnimator;
19import android.animation.ValueAnimator;
20import android.content.Context;
21import android.graphics.Bitmap;
22import android.graphics.Canvas;
23import android.graphics.Color;
24import android.graphics.Rect;
25import android.os.Bundle;
26import android.support.v7.app.AppCompatActivity;
27import android.util.AttributeSet;
28import android.util.DisplayMetrics;
29import android.view.View;
30
31public class BitmapUploadActivity extends AppCompatActivity {
32    public static class UploadView extends View {
33        private int mColorValue;
34        private Bitmap mBitmap;
35        private final DisplayMetrics mMetrics = new DisplayMetrics();
36        private final Rect mRect = new Rect();
37
38        public UploadView(Context context, AttributeSet attrs) {
39            super(context, attrs);
40        }
41
42        @SuppressWarnings("unused")
43        public void setColorValue(int colorValue) {
44            if (colorValue == mColorValue) return;
45
46            mColorValue = colorValue;
47
48            // modify the bitmap's color to ensure it's uploaded to the GPU
49            mBitmap.eraseColor(Color.rgb(mColorValue, 255 - mColorValue, 255));
50
51            invalidate();
52        }
53
54        @Override
55        protected void onAttachedToWindow() {
56            super.onAttachedToWindow();
57
58            getDisplay().getMetrics(mMetrics);
59            int minDisplayDimen = Math.min(mMetrics.widthPixels, mMetrics.heightPixels);
60            int bitmapSize = Math.min((int) (minDisplayDimen * 0.75), 720);
61            if (mBitmap == null
62                    || mBitmap.getWidth() != bitmapSize
63                    || mBitmap.getHeight() != bitmapSize) {
64                mBitmap = Bitmap.createBitmap(bitmapSize, bitmapSize, Bitmap.Config.ARGB_8888);
65            }
66        }
67
68        @Override
69        protected void onDraw(Canvas canvas) {
70            if (mBitmap != null) {
71                mRect.set(0, 0, getWidth(), getHeight());
72                canvas.drawBitmap(mBitmap, null, mRect, null);
73            }
74        }
75    }
76
77    @Override
78    protected void onCreate(Bundle savedInstanceState) {
79        super.onCreate(savedInstanceState);
80        setContentView(R.layout.activity_bitmap_upload);
81
82        // animate color to force bitmap uploads
83        UploadView uploadView = findViewById(R.id.upload_view);
84        ObjectAnimator colorValueAnimator = ObjectAnimator.ofInt(uploadView, "colorValue", 0, 255);
85        colorValueAnimator.setRepeatMode(ValueAnimator.REVERSE);
86        colorValueAnimator.setRepeatCount(ValueAnimator.INFINITE);
87        colorValueAnimator.start();
88
89        // animate scene root to guarantee there's a minimum amount of GPU rendering work
90        View uploadRoot = findViewById(R.id.upload_root);
91        ObjectAnimator yAnimator = ObjectAnimator.ofFloat(uploadRoot, "translationY", 0, 100);
92        yAnimator.setRepeatMode(ValueAnimator.REVERSE);
93        yAnimator.setRepeatCount(ValueAnimator.INFINITE);
94        yAnimator.start();
95    }
96}
97