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      1 /*
      2  * Copyright 2019 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #pragma once
     18 
     19 #include <memory>
     20 #include <string>
     21 
     22 #include <compositionengine/OutputLayer.h>
     23 #include <compositionengine/impl/OutputLayerCompositionState.h>
     24 #include <ui/FloatRect.h>
     25 #include <ui/Rect.h>
     26 
     27 #include "DisplayHardware/DisplayIdentification.h"
     28 
     29 namespace android::compositionengine::impl {
     30 
     31 class OutputLayer : public compositionengine::OutputLayer {
     32 public:
     33     OutputLayer(const compositionengine::Output&, std::shared_ptr<compositionengine::Layer>,
     34                 sp<compositionengine::LayerFE>);
     35     ~OutputLayer() override;
     36 
     37     void initialize(const CompositionEngine&, std::optional<DisplayId>);
     38 
     39     const compositionengine::Output& getOutput() const override;
     40     compositionengine::Layer& getLayer() const override;
     41     compositionengine::LayerFE& getLayerFE() const override;
     42 
     43     const OutputLayerCompositionState& getState() const override;
     44     OutputLayerCompositionState& editState() override;
     45 
     46     void updateCompositionState(bool) override;
     47     void writeStateToHWC(bool) const override;
     48 
     49     void dump(std::string& result) const override;
     50 
     51     virtual FloatRect calculateOutputSourceCrop() const;
     52     virtual Rect calculateOutputDisplayFrame() const;
     53     virtual uint32_t calculateOutputRelativeBufferTransform() const;
     54 
     55 private:
     56     Rect calculateInitialCrop() const;
     57 
     58     const compositionengine::Output& mOutput;
     59     std::shared_ptr<compositionengine::Layer> mLayer;
     60     sp<compositionengine::LayerFE> mLayerFE;
     61 
     62     OutputLayerCompositionState mState;
     63 };
     64 
     65 std::unique_ptr<compositionengine::OutputLayer> createOutputLayer(
     66         const CompositionEngine&, std::optional<DisplayId>, const compositionengine::Output&,
     67         std::shared_ptr<compositionengine::Layer>, sp<compositionengine::LayerFE>);
     68 
     69 } // namespace android::compositionengine::impl
     70