69e5adffb1
bug:15860114 Savelayers and HW layers both now support shadow casting. For save layers, the light source should always be correct, for HW layers, the light source position is set when the layer is created, and updated when it is resized. Change-Id: Ie85567dd43c2bb0a0b08fd0bd4db41efa793ac2b
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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* Copyright (C) 2014 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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#ifndef DAMAGEACCUMULATOR_H
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#define DAMAGEACCUMULATOR_H
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#include <cutils/compiler.h>
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#include <utils/LinearAllocator.h>
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#include <SkMatrix.h>
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#include <SkRect.h>
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#include "utils/Macros.h"
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namespace android {
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namespace uirenderer {
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struct DirtyStack;
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class RenderNode;
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class Matrix4;
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class DamageAccumulator {
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PREVENT_COPY_AND_ASSIGN(DamageAccumulator);
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public:
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DamageAccumulator();
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// mAllocator will clean everything up for us, no need for a dtor
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// Push a transform node onto the stack. This should be called prior
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// to any dirty() calls. Subsequent calls to dirty()
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// will be affected by the transform when popTransform() is called.
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void pushTransform(const RenderNode* transform);
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void pushTransform(const Matrix4* transform);
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// Pops a transform node from the stack, propagating the dirty rect
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// up to the parent node. Returns the IDamageTransform that was just applied
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void popTransform();
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void dirty(float left, float top, float right, float bottom);
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// Returns the current dirty area, *NOT* transformed by pushed transforms
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void peekAtDirty(SkRect* dest);
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void computeCurrentTransform(Matrix4* outMatrix) const;
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void finish(SkRect* totalDirty);
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private:
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void pushCommon();
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void applyMatrix4Transform(DirtyStack* frame);
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void applyRenderNodeTransform(DirtyStack* frame);
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LinearAllocator mAllocator;
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DirtyStack* mHead;
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};
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} /* namespace uirenderer */
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} /* namespace android */
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#endif /* DAMAGEACCUMULATOR_H */
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