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
26namespace android {
27
28BufferQueue::ProxyConsumerListener::ProxyConsumerListener(
29        const wp<ConsumerListener>& consumerListener):
30        mConsumerListener(consumerListener) {}
31
32BufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {}
33
34void BufferQueue::ProxyConsumerListener::onDisconnect() {
35    sp<ConsumerListener> listener(mConsumerListener.promote());
36    if (listener != NULL) {
37        listener->onDisconnect();
38    }
39}
40
41void BufferQueue::ProxyConsumerListener::onFrameAvailable(
42        const BufferItem& item) {
43    sp<ConsumerListener> listener(mConsumerListener.promote());
44    if (listener != NULL) {
45        listener->onFrameAvailable(item);
46    }
47}
48
49void BufferQueue::ProxyConsumerListener::onFrameReplaced(
50        const BufferItem& item) {
51    sp<ConsumerListener> listener(mConsumerListener.promote());
52    if (listener != NULL) {
53        listener->onFrameReplaced(item);
54    }
55}
56
57void BufferQueue::ProxyConsumerListener::onBuffersReleased() {
58    sp<ConsumerListener> listener(mConsumerListener.promote());
59    if (listener != NULL) {
60        listener->onBuffersReleased();
61    }
62}
63
64void BufferQueue::ProxyConsumerListener::onSidebandStreamChanged() {
65    sp<ConsumerListener> listener(mConsumerListener.promote());
66    if (listener != NULL) {
67        listener->onSidebandStreamChanged();
68    }
69}
70
71void BufferQueue::ProxyConsumerListener::addAndGetFrameTimestamps(
72        const NewFrameEventsEntry* newTimestamps,
73        FrameEventHistoryDelta* outDelta) {
74    sp<ConsumerListener> listener(mConsumerListener.promote());
75    if (listener != nullptr) {
76        listener->addAndGetFrameTimestamps(newTimestamps, outDelta);
77    }
78}
79
80void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer,
81        sp<IGraphicBufferConsumer>* outConsumer,
82        bool consumerIsSurfaceFlinger) {
83    LOG_ALWAYS_FATAL_IF(outProducer == NULL,
84            "BufferQueue: outProducer must not be NULL");
85    LOG_ALWAYS_FATAL_IF(outConsumer == NULL,
86            "BufferQueue: outConsumer must not be NULL");
87
88    sp<BufferQueueCore> core(new BufferQueueCore());
89    LOG_ALWAYS_FATAL_IF(core == NULL,
90            "BufferQueue: failed to create BufferQueueCore");
91
92    sp<IGraphicBufferProducer> producer(new BufferQueueProducer(core, consumerIsSurfaceFlinger));
93    LOG_ALWAYS_FATAL_IF(producer == NULL,
94            "BufferQueue: failed to create BufferQueueProducer");
95
96    sp<IGraphicBufferConsumer> consumer(new BufferQueueConsumer(core));
97    LOG_ALWAYS_FATAL_IF(consumer == NULL,
98            "BufferQueue: failed to create BufferQueueConsumer");
99
100    *outProducer = producer;
101    *outConsumer = consumer;
102}
103
104}; // namespace android
105