1 /*
2  * Copyright (C) 2012 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 #ifndef ANDROID_SF_CLIENT_H
18 #define ANDROID_SF_CLIENT_H
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <utils/Errors.h>
24 #include <utils/KeyedVector.h>
25 #include <utils/Mutex.h>
26 
27 #include <gui/ISurfaceComposerClient.h>
28 
29 namespace android {
30 
31 class Layer;
32 class SurfaceFlinger;
33 
34 class Client : public BnSurfaceComposerClient
35 {
36 public:
37     explicit Client(const sp<SurfaceFlinger>& flinger);
38     ~Client() = default;
39 
40     status_t initCheck() const;
41 
42     // protected by SurfaceFlinger::mStateLock
43     void attachLayer(const sp<IBinder>& handle, const sp<Layer>& layer);
44     void detachLayer(const Layer* layer);
45 
46     sp<Layer> getLayerUser(const sp<IBinder>& handle) const;
47 
48 private:
49     // ISurfaceComposerClient interface
50     virtual status_t createSurface(const String8& name, uint32_t w, uint32_t h, PixelFormat format,
51                                    uint32_t flags, const sp<IBinder>& parent,
52                                    LayerMetadata metadata, sp<IBinder>* handle,
53                                    sp<IGraphicBufferProducer>* gbp, int32_t* outLayerId,
54                                    uint32_t* outTransformHint = nullptr);
55 
56     virtual status_t createWithSurfaceParent(const String8& name, uint32_t w, uint32_t h,
57                                              PixelFormat format, uint32_t flags,
58                                              const sp<IGraphicBufferProducer>& parent,
59                                              LayerMetadata metadata, sp<IBinder>* handle,
60                                              sp<IGraphicBufferProducer>* gbp, int32_t* outLayerId,
61                                              uint32_t* outTransformHint = nullptr);
62 
63     status_t mirrorSurface(const sp<IBinder>& mirrorFromHandle, sp<IBinder>* handle,
64                            int32_t* outLayerId);
65 
66     virtual status_t clearLayerFrameStats(const sp<IBinder>& handle) const;
67 
68     virtual status_t getLayerFrameStats(const sp<IBinder>& handle, FrameStats* outStats) const;
69 
70     // constant
71     sp<SurfaceFlinger> mFlinger;
72 
73     // protected by mLock
74     DefaultKeyedVector< wp<IBinder>, wp<Layer> > mLayers;
75 
76     // thread-safe
77     mutable Mutex mLock;
78 };
79 
80 }; // namespace android
81 
82 #endif // ANDROID_SF_CLIENT_H
83