IConsumerListener.cpp revision 399184a4cd728ea1421fb0bc1722274a29e38f4a 
1/*
2 * Copyright (C) 2013 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 <binder/IInterface.h>
21#include <binder/Parcel.h>
22
23#include <gui/IConsumerListener.h>
24
25// ---------------------------------------------------------------------------
26namespace android {
27// ---------------------------------------------------------------------------
28
29enum {
30    ON_FRAME_AVAILABLE = IBinder::FIRST_CALL_TRANSACTION,
31    ON_BUFFER_RELEASED,
32    ON_SIDEBAND_STREAM_CHANGED,
33};
34
35class BpConsumerListener : public BpInterface<IConsumerListener>
36{
37public:
38    BpConsumerListener(const sp<IBinder>& impl)
39        : BpInterface<IConsumerListener>(impl) {
40    }
41
42    virtual void onFrameAvailable() {
43        Parcel data, reply;
44        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
45        remote()->transact(ON_FRAME_AVAILABLE, data, &reply, IBinder::FLAG_ONEWAY);
46    }
47
48    virtual void onBuffersReleased() {
49        Parcel data, reply;
50        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
51        remote()->transact(ON_BUFFER_RELEASED, data, &reply, IBinder::FLAG_ONEWAY);
52    }
53
54    virtual void onSidebandStreamChanged() {
55        Parcel data, reply;
56        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
57        remote()->transact(ON_SIDEBAND_STREAM_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
58    }
59};
60
61IMPLEMENT_META_INTERFACE(ConsumerListener, "android.gui.IConsumerListener");
62
63// ----------------------------------------------------------------------
64
65status_t BnConsumerListener::onTransact(
66    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
67{
68    switch(code) {
69        case ON_FRAME_AVAILABLE:
70            CHECK_INTERFACE(IConsumerListener, data, reply);
71            onFrameAvailable();
72            return NO_ERROR;
73        case ON_BUFFER_RELEASED:
74            CHECK_INTERFACE(IConsumerListener, data, reply);
75            onBuffersReleased();
76            return NO_ERROR;
77        case ON_SIDEBAND_STREAM_CHANGED:
78            CHECK_INTERFACE(IConsumerListener, data, reply);
79            onSidebandStreamChanged();
80            return NO_ERROR;
81    }
82    return BBinder::onTransact(code, data, reply, flags);
83}
84
85
86// ---------------------------------------------------------------------------
87}; // namespace android
88// ---------------------------------------------------------------------------
89