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#include <gui/BufferItem.h>
25
26// ---------------------------------------------------------------------------
27namespace android {
28// ---------------------------------------------------------------------------
29
30enum {
31    ON_FRAME_AVAILABLE = IBinder::FIRST_CALL_TRANSACTION,
32    ON_BUFFER_RELEASED,
33    ON_SIDEBAND_STREAM_CHANGED,
34};
35
36class BpConsumerListener : public BpInterface<IConsumerListener>
37{
38public:
39    BpConsumerListener(const sp<IBinder>& impl)
40        : BpInterface<IConsumerListener>(impl) {
41    }
42
43    virtual ~BpConsumerListener();
44
45    virtual void onFrameAvailable(const BufferItem& item) {
46        Parcel data, reply;
47        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
48        data.write(item);
49        remote()->transact(ON_FRAME_AVAILABLE, data, &reply, IBinder::FLAG_ONEWAY);
50    }
51
52    virtual void onBuffersReleased() {
53        Parcel data, reply;
54        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
55        remote()->transact(ON_BUFFER_RELEASED, data, &reply, IBinder::FLAG_ONEWAY);
56    }
57
58    virtual void onSidebandStreamChanged() {
59        Parcel data, reply;
60        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
61        remote()->transact(ON_SIDEBAND_STREAM_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
62    }
63};
64
65// Out-of-line virtual method definition to trigger vtable emission in this
66// translation unit (see clang warning -Wweak-vtables)
67BpConsumerListener::~BpConsumerListener() {}
68
69IMPLEMENT_META_INTERFACE(ConsumerListener, "android.gui.IConsumerListener");
70
71// ----------------------------------------------------------------------
72
73status_t BnConsumerListener::onTransact(
74    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
75{
76    switch(code) {
77        case ON_FRAME_AVAILABLE: {
78            CHECK_INTERFACE(IConsumerListener, data, reply);
79            BufferItem item;
80            data.read(item);
81            onFrameAvailable(item);
82            return NO_ERROR; }
83        case ON_BUFFER_RELEASED: {
84            CHECK_INTERFACE(IConsumerListener, data, reply);
85            onBuffersReleased();
86            return NO_ERROR; }
87        case ON_SIDEBAND_STREAM_CHANGED: {
88            CHECK_INTERFACE(IConsumerListener, data, reply);
89            onSidebandStreamChanged();
90            return NO_ERROR; }
91    }
92    return BBinder::onTransact(code, data, reply, flags);
93}
94
95
96// ---------------------------------------------------------------------------
97}; // namespace android
98// ---------------------------------------------------------------------------
99