12047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr/* 22047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * Copyright (C) 2016 The Android Open Source Project 32047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * 42047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * Licensed under the Apache License, Version 2.0 (the "License"); 52047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * you may not use this file except in compliance with the License. 62047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * You may obtain a copy of the License at 72047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * 82047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * http://www.apache.org/licenses/LICENSE-2.0 92047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * 102047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * Unless required by applicable law or agreed to in writing, software 112047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * distributed under the License is distributed on an "AS IS" BASIS, 122047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 132047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * See the License for the specific language governing permissions and 142047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * limitations under the License. 152047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr */ 162047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 172047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#ifndef ANDROID_SURFACE_FLINGER_LAYER_VECTOR_H 182047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#define ANDROID_SURFACE_FLINGER_LAYER_VECTOR_H 192047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 202047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#include <utils/SortedVector.h> 212047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#include <utils/RefBase.h> 222047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 232047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#include <functional> 242047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 252047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carrnamespace android { 262047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carrclass Layer; 272047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 282047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr/* 292047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * Used by the top-level SurfaceFlinger state and individual layers 302047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * to track layers they own sorted according to Z-order. Provides traversal 312047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr * functions for traversing all owned layers, and their descendents. 322047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr */ 332047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carrclass LayerVector : public SortedVector<sp<Layer>> { 342047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carrpublic: 35412903fce3a93f411c85c54375a1851bfb370400Dan Stoza enum class StateSet { 36412903fce3a93f411c85c54375a1851bfb370400Dan Stoza Invalid, 37412903fce3a93f411c85c54375a1851bfb370400Dan Stoza Current, 38412903fce3a93f411c85c54375a1851bfb370400Dan Stoza Drawing, 39412903fce3a93f411c85c54375a1851bfb370400Dan Stoza }; 40412903fce3a93f411c85c54375a1851bfb370400Dan Stoza 41738df02be90749afa30316ff70ef0ed425ceb6f0chaviw explicit LayerVector(const StateSet stateSet); 42738df02be90749afa30316ff70ef0ed425ceb6f0chaviw LayerVector(const LayerVector& rhs, const StateSet stateSet); 43738df02be90749afa30316ff70ef0ed425ceb6f0chaviw ~LayerVector() override; 44738df02be90749afa30316ff70ef0ed425ceb6f0chaviw 45738df02be90749afa30316ff70ef0ed425ceb6f0chaviw LayerVector& operator=(const LayerVector& rhs); 46738df02be90749afa30316ff70ef0ed425ceb6f0chaviw 472047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr // Sorts layer by layer-stack, Z order, and finally creation order (sequence). 482047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr int do_compare(const void* lhs, const void* rhs) const override; 492047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 50412903fce3a93f411c85c54375a1851bfb370400Dan Stoza using Visitor = std::function<void(Layer*)>; 51412903fce3a93f411c85c54375a1851bfb370400Dan Stoza void traverseInReverseZOrder(StateSet stateSet, const Visitor& visitor) const; 52412903fce3a93f411c85c54375a1851bfb370400Dan Stoza void traverseInZOrder(StateSet stateSet, const Visitor& visitor) const; 53738df02be90749afa30316ff70ef0ed425ceb6f0chaviw 54738df02be90749afa30316ff70ef0ed425ceb6f0chaviwprivate: 55738df02be90749afa30316ff70ef0ed425ceb6f0chaviw const StateSet mStateSet; 562047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr}; 572047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr} 582047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr 592047fae0cfed99c425dc7333f31d309e5b8ee1baRobert Carr#endif /* ANDROID_SURFACE_FLINGER_LAYER_VECTOR_H_ */ 60