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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_IREMOTEDISPLAYCLIENT_H
     18 #define ANDROID_IREMOTEDISPLAYCLIENT_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <utils/RefBase.h>
     24 #include <binder/IInterface.h>
     25 #include <binder/Parcel.h>
     26 
     27 namespace android {
     28 
     29 class IGraphicBufferProducer;
     30 
     31 class IRemoteDisplayClient : public IInterface
     32 {
     33 public:
     34     DECLARE_META_INTERFACE(RemoteDisplayClient);
     35 
     36     enum {
     37         // Flag: The remote display is using a secure transport protocol such as HDCP.
     38         kDisplayFlagSecure = 1 << 0,
     39     };
     40 
     41     enum {
     42         // Error: An unknown / generic error occurred.
     43         kDisplayErrorUnknown = 1,
     44         // Error: The connection was dropped unexpectedly.
     45         kDisplayErrorConnectionDropped = 2,
     46     };
     47 
     48     // Indicates that the remote display has been connected successfully.
     49     // Provides a surface texture that the client should use to stream buffers to
     50     // the remote display.
     51     virtual void onDisplayConnected(const sp<IGraphicBufferProducer>& bufferProducer,
     52             uint32_t width, uint32_t height, uint32_t flags, uint32_t session) = 0; // one-way
     53 
     54     // Indicates that the remote display has been disconnected normally.
     55     // This method should only be called once the client has called 'dispose()'
     56     // on the IRemoteDisplay.
     57     // It is currently an error for the display to disconnect for any other reason.
     58     virtual void onDisplayDisconnected() = 0; // one-way
     59 
     60     // Indicates that a connection could not be established to the remote display
     61     // or an unrecoverable error occurred and the connection was severed.
     62     virtual void onDisplayError(int32_t error) = 0; // one-way
     63 };
     64 
     65 
     66 // ----------------------------------------------------------------------------
     67 
     68 class BnRemoteDisplayClient : public BnInterface<IRemoteDisplayClient>
     69 {
     70 public:
     71     virtual status_t    onTransact( uint32_t code,
     72                                     const Parcel& data,
     73                                     Parcel* reply,
     74                                     uint32_t flags = 0);
     75 };
     76 
     77 }; // namespace android
     78 
     79 #endif // ANDROID_IREMOTEDISPLAYCLIENT_H
     80