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