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 #define LOG_TAG "BufferQueue"
18 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
19 //#define LOG_NDEBUG 0
20
21 #include <gui/BufferQueue.h>
22 #include <gui/BufferQueueConsumer.h>
23 #include <gui/BufferQueueCore.h>
24 #include <gui/BufferQueueProducer.h>
25
26 namespace android {
27
ProxyConsumerListener(const wp<ConsumerListener> & consumerListener)28 BufferQueue::ProxyConsumerListener::ProxyConsumerListener(
29 const wp<ConsumerListener>& consumerListener):
30 mConsumerListener(consumerListener) {}
31
~ProxyConsumerListener()32 BufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {}
33
onFrameAvailable(const BufferItem & item)34 void BufferQueue::ProxyConsumerListener::onFrameAvailable(
35 const BufferItem& item) {
36 sp<ConsumerListener> listener(mConsumerListener.promote());
37 if (listener != NULL) {
38 listener->onFrameAvailable(item);
39 }
40 }
41
onFrameReplaced(const BufferItem & item)42 void BufferQueue::ProxyConsumerListener::onFrameReplaced(
43 const BufferItem& item) {
44 sp<ConsumerListener> listener(mConsumerListener.promote());
45 if (listener != NULL) {
46 listener->onFrameReplaced(item);
47 }
48 }
49
onBuffersReleased()50 void BufferQueue::ProxyConsumerListener::onBuffersReleased() {
51 sp<ConsumerListener> listener(mConsumerListener.promote());
52 if (listener != NULL) {
53 listener->onBuffersReleased();
54 }
55 }
56
onSidebandStreamChanged()57 void BufferQueue::ProxyConsumerListener::onSidebandStreamChanged() {
58 sp<ConsumerListener> listener(mConsumerListener.promote());
59 if (listener != NULL) {
60 listener->onSidebandStreamChanged();
61 }
62 }
63
getFrameTimestamps(uint64_t frameNumber,FrameTimestamps * outTimestamps) const64 bool BufferQueue::ProxyConsumerListener::getFrameTimestamps(
65 uint64_t frameNumber, FrameTimestamps* outTimestamps) const {
66 sp<ConsumerListener> listener(mConsumerListener.promote());
67 if (listener != NULL) {
68 return listener->getFrameTimestamps(frameNumber, outTimestamps);
69 }
70 return false;
71 }
72
createBufferQueue(sp<IGraphicBufferProducer> * outProducer,sp<IGraphicBufferConsumer> * outConsumer,const sp<IGraphicBufferAlloc> & allocator)73 void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer,
74 sp<IGraphicBufferConsumer>* outConsumer,
75 const sp<IGraphicBufferAlloc>& allocator) {
76 LOG_ALWAYS_FATAL_IF(outProducer == NULL,
77 "BufferQueue: outProducer must not be NULL");
78 LOG_ALWAYS_FATAL_IF(outConsumer == NULL,
79 "BufferQueue: outConsumer must not be NULL");
80
81 sp<BufferQueueCore> core(new BufferQueueCore(allocator));
82 LOG_ALWAYS_FATAL_IF(core == NULL,
83 "BufferQueue: failed to create BufferQueueCore");
84
85 sp<IGraphicBufferProducer> producer(new BufferQueueProducer(core));
86 LOG_ALWAYS_FATAL_IF(producer == NULL,
87 "BufferQueue: failed to create BufferQueueProducer");
88
89 sp<IGraphicBufferConsumer> consumer(new BufferQueueConsumer(core));
90 LOG_ALWAYS_FATAL_IF(consumer == NULL,
91 "BufferQueue: failed to create BufferQueueConsumer");
92
93 *outProducer = producer;
94 *outConsumer = consumer;
95 }
96
97 }; // namespace android
98