MonitoredProducer.cpp revision fd34b65f717b84fa06d8c37f41b070f41d0ad3a3 
1/*
2 * Copyright 2014 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 "MessageQueue.h"
18#include "MonitoredProducer.h"
19#include "SurfaceFlinger.h"
20
21namespace android {
22
23MonitoredProducer::MonitoredProducer(const sp<IGraphicBufferProducer>& producer,
24        const sp<SurfaceFlinger>& flinger) :
25    mProducer(producer),
26    mFlinger(flinger) {}
27
28MonitoredProducer::~MonitoredProducer() {
29    // Remove ourselves from SurfaceFlinger's list. We do this asynchronously
30    // because we don't know where this destructor is called from. It could be
31    // called with the mStateLock held, leading to a dead-lock (it actually
32    // happens).
33    class MessageCleanUpList : public MessageBase {
34    public:
35        MessageCleanUpList(const sp<SurfaceFlinger>& flinger,
36                const wp<IBinder>& producer)
37            : mFlinger(flinger), mProducer(producer) {}
38
39        virtual ~MessageCleanUpList() {}
40
41        virtual bool handler() {
42            Mutex::Autolock _l(mFlinger->mStateLock);
43            mFlinger->mGraphicBufferProducerList.remove(mProducer);
44            return true;
45        }
46
47    private:
48        sp<SurfaceFlinger> mFlinger;
49        wp<IBinder> mProducer;
50    };
51
52    mFlinger->postMessageAsync(new MessageCleanUpList(mFlinger, asBinder()));
53}
54
55status_t MonitoredProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
56    return mProducer->requestBuffer(slot, buf);
57}
58
59status_t MonitoredProducer::setBufferCount(int bufferCount) {
60    return mProducer->setBufferCount(bufferCount);
61}
62
63status_t MonitoredProducer::dequeueBuffer(int* slot, sp<Fence>* fence,
64        bool async, uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
65    return mProducer->dequeueBuffer(slot, fence, async, w, h, format, usage);
66}
67
68status_t MonitoredProducer::detachBuffer(int slot) {
69    return mProducer->detachBuffer(slot);
70}
71
72status_t MonitoredProducer::attachBuffer(int* outSlot,
73        const sp<GraphicBuffer>& buffer) {
74    return mProducer->attachBuffer(outSlot, buffer);
75}
76
77status_t MonitoredProducer::queueBuffer(int slot, const QueueBufferInput& input,
78        QueueBufferOutput* output) {
79    return mProducer->queueBuffer(slot, input, output);
80}
81
82void MonitoredProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
83    mProducer->cancelBuffer(slot, fence);
84}
85
86int MonitoredProducer::query(int what, int* value) {
87    return mProducer->query(what, value);
88}
89
90status_t MonitoredProducer::connect(const sp<IProducerListener>& listener,
91        int api, bool producerControlledByApp, QueueBufferOutput* output) {
92    return mProducer->connect(listener, api, producerControlledByApp, output);
93}
94
95status_t MonitoredProducer::disconnect(int api) {
96    return mProducer->disconnect(api);
97}
98
99status_t MonitoredProducer::setSidebandStream(const sp<NativeHandle>& stream) {
100    return mProducer->setSidebandStream(stream);
101}
102
103IBinder* MonitoredProducer::onAsBinder() {
104    return mProducer->asBinder().get();
105}
106
107// ---------------------------------------------------------------------------
108}; // namespace android
109