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 void onFrameAvailable(const BufferItem& item) {
44        Parcel data, reply;
45        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
46        data.write(item);
47        remote()->transact(ON_FRAME_AVAILABLE, data, &reply, IBinder::FLAG_ONEWAY);
48    }
49
50    virtual void onBuffersReleased() {
51        Parcel data, reply;
52        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
53        remote()->transact(ON_BUFFER_RELEASED, data, &reply, IBinder::FLAG_ONEWAY);
54    }
55
56    virtual void onSidebandStreamChanged() {
57        Parcel data, reply;
58        data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor());
59        remote()->transact(ON_SIDEBAND_STREAM_CHANGED, data, &reply, IBinder::FLAG_ONEWAY);
60    }
61};
62
63IMPLEMENT_META_INTERFACE(ConsumerListener, "android.gui.IConsumerListener");
64
65// ----------------------------------------------------------------------
66
67status_t BnConsumerListener::onTransact(
68    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
69{
70    switch(code) {
71        case ON_FRAME_AVAILABLE: {
72            CHECK_INTERFACE(IConsumerListener, data, reply);
73            BufferItem item;
74            data.read(item);
75            onFrameAvailable(item);
76            return NO_ERROR; }
77        case ON_BUFFER_RELEASED: {
78            CHECK_INTERFACE(IConsumerListener, data, reply);
79            onBuffersReleased();
80            return NO_ERROR; }
81        case ON_SIDEBAND_STREAM_CHANGED: {
82            CHECK_INTERFACE(IConsumerListener, data, reply);
83            onSidebandStreamChanged();
84            return NO_ERROR; }
85    }
86    return BBinder::onTransact(code, data, reply, flags);
87}
88
89
90// ---------------------------------------------------------------------------
91}; // namespace android
92// ---------------------------------------------------------------------------
93