IRemoteDisplayClient.cpp revision 2013a54981d4ffb036dff279b88cc9f08c0ee1c2 
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#include <stdint.h>
18#include <sys/types.h>
19
20#include <media/IRemoteDisplayClient.h>
21#include <gui/ISurfaceTexture.h>
22#include <utils/String8.h>
23
24namespace android {
25
26enum {
27    ON_DISPLAY_CONNECTED = IBinder::FIRST_CALL_TRANSACTION,
28    ON_DISPLAY_DISCONNECTED,
29    ON_DISPLAY_ERROR,
30};
31
32class BpRemoteDisplayClient: public BpInterface<IRemoteDisplayClient>
33{
34public:
35    BpRemoteDisplayClient(const sp<IBinder>& impl)
36        : BpInterface<IRemoteDisplayClient>(impl)
37    {
38    }
39
40    void onDisplayConnected(const sp<ISurfaceTexture>& surfaceTexture,
41            uint32_t width, uint32_t height, uint32_t flags)
42    {
43        Parcel data, reply;
44        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
45        data.writeStrongBinder(surfaceTexture->asBinder());
46        data.writeInt32(width);
47        data.writeInt32(height);
48        data.writeInt32(flags);
49        remote()->transact(ON_DISPLAY_CONNECTED, data, &reply, IBinder::FLAG_ONEWAY);
50    }
51
52    void onDisplayDisconnected()
53    {
54        Parcel data, reply;
55        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
56        remote()->transact(ON_DISPLAY_DISCONNECTED, data, &reply, IBinder::FLAG_ONEWAY);
57    }
58
59    void onDisplayError(int32_t error)
60    {
61        Parcel data, reply;
62        data.writeInterfaceToken(IRemoteDisplayClient::getInterfaceDescriptor());
63        data.writeInt32(error);
64        remote()->transact(ON_DISPLAY_ERROR, data, &reply, IBinder::FLAG_ONEWAY);
65    }
66};
67
68IMPLEMENT_META_INTERFACE(RemoteDisplayClient, "android.media.IRemoteDisplayClient");
69
70// ----------------------------------------------------------------------
71
72status_t BnRemoteDisplayClient::onTransact(
73    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
74{
75    switch (code) {
76        case ON_DISPLAY_CONNECTED: {
77            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
78            sp<ISurfaceTexture> surfaceTexture(
79                    interface_cast<ISurfaceTexture>(data.readStrongBinder()));
80            uint32_t width = data.readInt32();
81            uint32_t height = data.readInt32();
82            uint32_t flags = data.readInt32();
83            onDisplayConnected(surfaceTexture, width, height, flags);
84            return NO_ERROR;
85        }
86        case ON_DISPLAY_DISCONNECTED: {
87            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
88            onDisplayDisconnected();
89            return NO_ERROR;
90        }
91        case ON_DISPLAY_ERROR: {
92            CHECK_INTERFACE(IRemoteDisplayClient, data, reply);
93            int32_t error = data.readInt32();
94            onDisplayError(error);
95            return NO_ERROR;
96        }
97        default:
98            return BBinder::onTransact(code, data, reply, flags);
99    }
100}
101
102}; // namespace android
103