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 #include <utils/StrongPointer.h>
22 
23 struct ANativeWindow;
24 
25 namespace android {
26 
27 class IGraphicBufferProducer;
28 
29 namespace surfaceflinger {
30 
31 // A thin interface to abstract creating instances of Surface (gui/Surface.h) to
32 // use as a NativeWindow.
33 class NativeWindowSurface {
34 public:
35     virtual ~NativeWindowSurface();
36 
37     // Gets the NativeWindow to use for the surface.
38     virtual sp<ANativeWindow> getNativeWindow() const = 0;
39 
40     // Indicates that the surface should allocate its buffers now.
41     virtual void preallocateBuffers() = 0;
42 };
43 
44 namespace impl {
45 
46 std::unique_ptr<NativeWindowSurface> createNativeWindowSurface(const sp<IGraphicBufferProducer>&);
47 
48 } // namespace impl
49 } // namespace surfaceflinger
50 } // namespace android
51