67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "TestSceneBase.h"
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class SaveLayerAnimation;
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static TestScene::Registrar _SaveLayer(TestScene::Info{
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"savelayer",
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"A nested pair of clipped saveLayer operations. "
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"Tests the clipped saveLayer codepath. Draws content into offscreen buffers and back "
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"again.",
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TestScene::simpleCreateScene<SaveLayerAnimation>});
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class SaveLayerAnimation : public TestScene {
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public:
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sp<RenderNode> card;
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void createContent(int width, int height, Canvas& canvas) override {
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canvas.drawColor(Color::White, SkBlendMode::kSrcOver); // background
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card = TestUtils::createNode(0, 0, 400, 800, [](RenderProperties& props, Canvas& canvas) {
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// nested clipped saveLayers
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canvas.saveLayerAlpha(0, 0, 400, 400, 200);
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canvas.drawColor(Color::Green_700, SkBlendMode::kSrcOver);
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canvas.clipRect(50, 50, 350, 350, SkClipOp::kIntersect);
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canvas.saveLayerAlpha(100, 100, 300, 300, 128);
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canvas.drawColor(Color::Blue_500, SkBlendMode::kSrcOver);
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canvas.restore();
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canvas.restore();
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// single unclipped saveLayer
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canvas.save(SaveFlags::MatrixClip);
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canvas.translate(0, 400);
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int unclippedSaveLayer = canvas.saveUnclippedLayer(100, 100, 300, 300);
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Paint paint;
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paint.setAntiAlias(true);
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paint.setColor(Color::Green_700);
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canvas.drawCircle(200, 200, 200, paint);
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Paint alphaPaint;
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alphaPaint.setAlpha(128);
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canvas.restoreUnclippedLayer(unclippedSaveLayer, alphaPaint);
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canvas.restore();
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});
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canvas.drawRenderNode(card.get());
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}
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void doFrame(int frameNr) override {
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int curFrame = frameNr % 150;
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card->mutateStagingProperties().setTranslationX(curFrame);
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card->mutateStagingProperties().setTranslationY(curFrame);
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card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
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}
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};
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