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