56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
/*
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* Copyright (C) 2021 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 "TransformCanvas.h"
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#include "FunctorDrawable.h"
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#include "HolePunch.h"
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#include "SkData.h"
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#include "SkDrawable.h"
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using namespace android::uirenderer::skiapipeline;
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void TransformCanvas::onDrawAnnotation(const SkRect& rect, const char* key, SkData* value) {
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if (HOLE_PUNCH_ANNOTATION == key) {
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auto* rectParams = reinterpret_cast<const float*>(value->data());
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float radiusX = rectParams[0];
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float radiusY = rectParams[1];
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SkRRect roundRect = SkRRect::MakeRectXY(rect, radiusX, radiusY);
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SkPaint paint;
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paint.setColor(SkColors::kBlack);
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paint.setBlendMode(mHolePunchBlendMode);
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mWrappedCanvas->drawRRect(roundRect, paint);
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}
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}
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void TransformCanvas::onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) {
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// TransformCanvas filters all drawing commands while maintaining the current
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// clip stack and transformation. We need to draw most SkDrawables, since their
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// draw calls may call methods that affect the clip stack and transformation. (Any
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// actual draw commands will then be filtered out.) But FunctorDrawables are used
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// as leaf nodes which issue self-contained OpenGL/Vulkan commands. These won't
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// affect the clip stack + transformation, and in some cases cause problems (e.g. if
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// the surface only has an alpha channel). See b/203960959
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const auto* drawableName = drawable->getTypeName();
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if (drawableName == nullptr || strcmp(drawableName, FunctorDrawable::TYPE_NAME) != 0) {
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drawable->draw(this, matrix);
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}
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}
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bool TransformCanvas::onFilter(SkPaint& paint) const {
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return false;
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}
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