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  */
16 
17 
18 #include "TestSceneBase.h"
19 
20 class RectGridAnimation;
21 
22 static TestScene::Registrar _RectGrid(TestScene::Info{
23     "rectgrid",
24     "A dense grid of 1x1 rects that should visually look like a single rect. "
25     "Low CPU/GPU load.",
26     TestScene::simpleCreateScene<RectGridAnimation>
27 });
28 
29 class RectGridAnimation : public TestScene {
30 public:
31     sp<RenderNode> card;
createContent(int width,int height,TestCanvas & canvas)32     void createContent(int width, int height, TestCanvas& canvas) override {
33         canvas.drawColor(0xFFFFFFFF, SkXfermode::kSrcOver_Mode);
34         canvas.insertReorderBarrier(true);
35 
36         card = TestUtils::createNode(50, 50, 250, 250,
37                 [](RenderProperties& props, TestCanvas& canvas) {
38             canvas.drawColor(0xFFFF00FF, SkXfermode::kSrcOver_Mode);
39 
40             SkRegion region;
41             for (int xOffset = 0; xOffset < 200; xOffset+=2) {
42                 for (int yOffset = 0; yOffset < 200; yOffset+=2) {
43                     region.op(xOffset, yOffset, xOffset + 1, yOffset + 1, SkRegion::kUnion_Op);
44                 }
45             }
46 
47             SkPaint paint;
48             paint.setColor(0xff00ffff);
49             canvas.drawRegion(region, paint);
50         });
51         canvas.drawRenderNode(card.get());
52 
53         canvas.insertReorderBarrier(false);
54     }
doFrame(int frameNr)55     void doFrame(int frameNr) override {
56         int curFrame = frameNr % 150;
57         card->mutateStagingProperties().setTranslationX(curFrame);
58         card->mutateStagingProperties().setTranslationY(curFrame);
59         card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
60     }
61 };
62