73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
/*
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* Copyright (C) 2017 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 ShadowShaderAnimation;
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static TestScene::Registrar _ShadowShader(TestScene::Info{
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"shadowshader",
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"A set of overlapping shadowed areas with simple tessellation useful for"
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" benchmarking shadow shader performance.",
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TestScene::simpleCreateScene<ShadowShaderAnimation>});
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class ShadowShaderAnimation : public TestScene {
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public:
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std::vector<sp<RenderNode> > cards;
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void createContent(int width, int height, Canvas& canvas) override {
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canvas.drawColor(0xFFFFFFFF, SkBlendMode::kSrcOver);
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canvas.enableZ(true);
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int outset = 50;
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for (int i = 0; i < 10; i++) {
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sp<RenderNode> card =
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createCard(outset, outset, width - (outset * 2), height - (outset * 2));
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canvas.drawRenderNode(card.get());
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cards.push_back(card);
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}
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canvas.enableZ(false);
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}
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void doFrame(int frameNr) override {
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int curFrame = frameNr % 10;
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for (size_t ci = 0; ci < cards.size(); ci++) {
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cards[ci]->mutateStagingProperties().setTranslationX(curFrame);
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cards[ci]->mutateStagingProperties().setTranslationY(curFrame);
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cards[ci]->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
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}
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}
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private:
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sp<RenderNode> createCard(int x, int y, int width, int height) {
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return TestUtils::createNode(x, y, x + width, y + height,
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[width, height](RenderProperties& props, Canvas& canvas) {
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props.setElevation(1000);
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// Set 0 radius, no clipping, so shadow is easy to compute.
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// Slightly transparent outline
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// to signal contents aren't opaque (not necessary though,
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// as elevation is so high, no
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// inner content to cut out)
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props.mutableOutline().setRoundRect(0, 0, width, height, 0,
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0.99f);
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props.mutableOutline().setShouldClip(false);
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// don't draw anything to card's canvas - we just want the
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// shadow
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});
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}
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};
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