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      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 // ---------------------------------------------------------------------------
     32 
     33 class LayerBaseClient;
     34 class SurfaceFlinger;
     35 
     36 // ---------------------------------------------------------------------------
     37 
     38 class Client : public BnSurfaceComposerClient
     39 {
     40 public:
     41         Client(const sp<SurfaceFlinger>& flinger);
     42         ~Client();
     43 
     44     status_t initCheck() const;
     45 
     46     // protected by SurfaceFlinger::mStateLock
     47     size_t attachLayer(const sp<LayerBaseClient>& layer);
     48 
     49     void detachLayer(const LayerBaseClient* layer);
     50 
     51     sp<LayerBaseClient> getLayerUser(int32_t i) const;
     52 
     53 private:
     54     // ISurfaceComposerClient interface
     55     virtual sp<ISurface> createSurface(
     56             surface_data_t* params, const String8& name,
     57             uint32_t w, uint32_t h,PixelFormat format,
     58             uint32_t flags);
     59 
     60     virtual status_t destroySurface(SurfaceID surfaceId);
     61 
     62     virtual status_t onTransact(
     63         uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);
     64 
     65     // constant
     66     sp<SurfaceFlinger> mFlinger;
     67 
     68     // protected by mLock
     69     DefaultKeyedVector< size_t, wp<LayerBaseClient> > mLayers;
     70     size_t mNameGenerator;
     71 
     72     // thread-safe
     73     mutable Mutex mLock;
     74 };
     75 
     76 // ---------------------------------------------------------------------------
     77 }; // namespace android
     78 
     79 #endif // ANDROID_SF_CLIENT_H
     80