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 <unistd.h> 20 21 class JankyScene; 22 23 static TestScene::Registrar _JankyScene(TestScene::Info{ 24 "janky", 25 "A scene that intentionally janks just enough to stay in " 26 "triple buffering.", 27 TestScene::simpleCreateScene<JankyScene>}); 28 29 class JankyScene : public TestScene { 30 public: 31 sp<RenderNode> card; 32 33 void createContent(int width, int height, Canvas& canvas) override { 34 card = TestUtils::createNode(0, 0, 200, 200, [](RenderProperties& props, Canvas& canvas) { 35 canvas.drawColor(0xFF0000FF, SkBlendMode::kSrcOver); 36 }); 37 canvas.drawColor(0xFFFFFFFF, SkBlendMode::kSrcOver); // background 38 canvas.drawRenderNode(card.get()); 39 } 40 41 void doFrame(int frameNr) override { 42 int curFrame = frameNr % 150; 43 if (curFrame & 1) { 44 usleep(15000); 45 } 46 // we animate left and top coordinates, which in turn animates width and 47 // height (bottom/right coordinates are fixed) 48 card->mutateStagingProperties().setLeftTop(curFrame, curFrame); 49 card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y); 50 } 51 };
