1 /*
2  * Copyright 2018 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 
21 namespace android {
22 
23 class HWComposer;
24 
25 namespace renderengine {
26 class RenderEngine;
27 } // namespace renderengine
28 
29 namespace compositionengine {
30 
31 class Display;
32 class Layer;
33 
34 struct DisplayCreationArgs;
35 struct LayerCreationArgs;
36 
37 /**
38  * Encapsulates all the interfaces and implementation details for performing
39  * display output composition.
40  */
41 class CompositionEngine {
42 public:
43     virtual ~CompositionEngine();
44 
45     // Create a composition Display
46     virtual std::shared_ptr<Display> createDisplay(DisplayCreationArgs&&) = 0;
47     virtual std::shared_ptr<Layer> createLayer(LayerCreationArgs&&) = 0;
48 
49     virtual HWComposer& getHwComposer() const = 0;
50     virtual void setHwComposer(std::unique_ptr<HWComposer>) = 0;
51 
52     virtual renderengine::RenderEngine& getRenderEngine() const = 0;
53     virtual void setRenderEngine(std::unique_ptr<renderengine::RenderEngine>) = 0;
54 };
55 
56 } // namespace compositionengine
57 } // namespace android
58