libs/hwui/tests/common/scenes/HwLayerSizeAnimation.cpp

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "TestSceneBase.h"

class HwLayerSizeAnimation;

static TestScene::Registrar _HwLayerSize(TestScene::Info{
        "hwlayersize",
        "A nested pair of nodes with LayerType::RenderLayer(hardware) set on the child and "
        "LayerType::None on the parent. "
        "Tests animating the size of a hardware layer.",
        TestScene::simpleCreateScene<HwLayerSizeAnimation>});

class HwLayerSizeAnimation : public TestScene {
public:
    sp<RenderNode> card;
    void createContent(int width, int height, Canvas& canvas) override {
        card = TestUtils::createNode(0, 0, 200, 200, [](RenderProperties& props, Canvas& canvas) {
            props.mutateLayerProperties().setType(LayerType::RenderLayer);
            canvas.drawColor(0xFF0000FF, SkBlendMode::kSrcOver);
        });
        canvas.drawColor(0xFFFFFFFF, SkBlendMode::kSrcOver);  // background
        canvas.drawRenderNode(card.get());
    }
    void doFrame(int frameNr) override {
        int curFrame = frameNr % 150;
        // we animate left and top coordinates, which in turn animates width and
        // height (bottom/right coordinates are fixed)
        card->mutateStagingProperties().setLeftTop(curFrame, curFrame);
        card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
    }
};