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 #include <SkBlendMode.h>
20 
21 class ShadowGridAnimation;
22 
23 static TestScene::Registrar _ShadowGrid(TestScene::Info{
24         "shadowgrid",
25         "A grid of rounded rects that cast a shadow. Simplified scenario of an "
26         "Android TV-style launcher interface. High CPU/GPU load.",
27         TestScene::simpleCreateScene<ShadowGridAnimation>});
28 
29 class ShadowGridAnimation : public TestScene {
30 public:
31     std::vector<sp<RenderNode> > cards;
createContent(int width,int height,Canvas & canvas)32     void createContent(int width, int height, Canvas& canvas) override {
33         canvas.drawColor(0xFFFFFFFF, SkBlendMode::kSrcOver);
34         canvas.enableZ(true);
35 
36         for (int x = dp(16); x < (width - dp(116)); x += dp(116)) {
37             for (int y = dp(16); y < (height - dp(116)); y += dp(116)) {
38                 sp<RenderNode> card = createCard(x, y, dp(100), dp(100));
39                 canvas.drawRenderNode(card.get());
40                 cards.push_back(card);
41             }
42         }
43 
44         canvas.enableZ(false);
45     }
doFrame(int frameNr)46     void doFrame(int frameNr) override {
47         int curFrame = frameNr % 150;
48         for (size_t ci = 0; ci < cards.size(); ci++) {
49             cards[ci]->mutateStagingProperties().setTranslationX(curFrame);
50             cards[ci]->mutateStagingProperties().setTranslationY(curFrame);
51             cards[ci]->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
52         }
53     }
54 
55 private:
createCard(int x,int y,int width,int height)56     sp<RenderNode> createCard(int x, int y, int width, int height) {
57         return TestUtils::createNode(x, y, x + width, y + height,
58                                      [width, height](RenderProperties& props, Canvas& canvas) {
59                                          props.setElevation(dp(16));
60                                          props.mutableOutline().setRoundRect(0, 0, width, height,
61                                                                              dp(6), 1);
62                                          props.mutableOutline().setShouldClip(true);
63                                          canvas.drawColor(0xFFEEEEEE, SkBlendMode::kSrcOver);
64                                      });
65     }
66 };
67