1 /* 2 * Copyright (C) 2018 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 #include <unistd.h> 22 23 class JankyScene; 24 25 static TestScene::Registrar _JankyScene(TestScene::Info{ 26 "janky", 27 "A scene that intentionally janks just enough to stay in " 28 "triple buffering.", 29 TestScene::simpleCreateScene<JankyScene>}); 30 31 class JankyScene : public TestScene { 32 public: 33 sp<RenderNode> card; 34 createContent(int width,int height,Canvas & canvas)35 void createContent(int width, int height, Canvas& canvas) override { 36 card = TestUtils::createNode(0, 0, 200, 200, [](RenderProperties& props, Canvas& canvas) { 37 canvas.drawColor(0xFF0000FF, SkBlendMode::kSrcOver); 38 }); 39 canvas.drawColor(0xFFFFFFFF, SkBlendMode::kSrcOver); // background 40 canvas.drawRenderNode(card.get()); 41 } 42 doFrame(int frameNr)43 void doFrame(int frameNr) override { 44 int curFrame = frameNr % 150; 45 if (curFrame & 1) { 46 usleep(15000); 47 } 48 // we animate left and top coordinates, which in turn animates width and 49 // height (bottom/right coordinates are fixed) 50 card->mutateStagingProperties().setLeftTop(curFrame, curFrame); 51 card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y); 52 } 53 };