1 /*
2  * Copyright (C) 2017 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 #include "TestSceneBase.h"
18 #include "renderthread/RenderProxy.h"
19 #include "utils/Color.h"
20 #include "hwui/Paint.h"
21 
22 class MagnifierAnimation;
23 
24 static TestScene::Registrar _Magnifier(TestScene::Info{
25         "magnifier", "A sample magnifier using Readback",
26         TestScene::simpleCreateScene<MagnifierAnimation>});
27 
28 class MagnifierAnimation : public TestScene {
29 public:
30     sp<RenderNode> card;
31     sp<RenderNode> zoomImageView;
32 
createContent(int width,int height,Canvas & canvas)33     void createContent(int width, int height, Canvas& canvas) override {
34         magnifier = TestUtils::createBitmap(200, 100);
35         SkBitmap temp;
36         magnifier->getSkBitmap(&temp);
37         temp.eraseColor(Color::White);
38         canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
39         card = TestUtils::createNode(
40                 0, 0, width, height, [&](RenderProperties& props, Canvas& canvas) {
41                     Paint paint;
42                     paint.setAntiAlias(true);
43                     paint.getSkFont().setSize(50);
44 
45                     paint.setColor(Color::Black);
46                     TestUtils::drawUtf8ToCanvas(&canvas, "Test string", paint, 10, 400);
47                 });
48         canvas.drawRenderNode(card.get());
49         zoomImageView = TestUtils::createNode(
50                 100, 100, 500, 300, [&](RenderProperties& props, Canvas& canvas) {
51                     props.setElevation(dp(16));
52                     props.mutableOutline().setRoundRect(0, 0, props.getWidth(), props.getHeight(),
53                                                         dp(6), 1);
54                     props.mutableOutline().setShouldClip(true);
55                     canvas.drawBitmap(*magnifier, 0.0f, 0.0f, (float)magnifier->width(),
56                                       (float)magnifier->height(), 0, 0, (float)props.getWidth(),
57                                       (float)props.getHeight(), nullptr);
58                 });
59         canvas.insertReorderBarrier(true);
60         canvas.drawRenderNode(zoomImageView.get());
61         canvas.insertReorderBarrier(false);
62     }
63 
doFrame(int frameNr)64     void doFrame(int frameNr) override {
65         int curFrame = frameNr % 150;
66         card->mutateStagingProperties().setTranslationX(curFrame);
67         card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
68         if (renderTarget) {
69             SkBitmap temp;
70             magnifier->getSkBitmap(&temp);
71             constexpr int x = 90;
72             constexpr int y = 325;
73             RenderProxy::copySurfaceInto(renderTarget, x, y, x + magnifier->width(),
74                                          y + magnifier->height(), &temp);
75         }
76     }
77 
78     sk_sp<Bitmap> magnifier;
79 };
80