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::onFrameAvailable( 35 const BufferItem& item) { 36 sp<ConsumerListener> listener(mConsumerListener.promote()); 37 if (listener != NULL) { 38 listener->onFrameAvailable(item); 39 } 40} 41 42void BufferQueue::ProxyConsumerListener::onFrameReplaced( 43 const BufferItem& item) { 44 sp<ConsumerListener> listener(mConsumerListener.promote()); 45 if (listener != NULL) { 46 listener->onFrameReplaced(item); 47 } 48} 49 50void BufferQueue::ProxyConsumerListener::onBuffersReleased() { 51 sp<ConsumerListener> listener(mConsumerListener.promote()); 52 if (listener != NULL) { 53 listener->onBuffersReleased(); 54 } 55} 56 57void BufferQueue::ProxyConsumerListener::onSidebandStreamChanged() { 58 sp<ConsumerListener> listener(mConsumerListener.promote()); 59 if (listener != NULL) { 60 listener->onSidebandStreamChanged(); 61 } 62} 63 64void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer, 65 sp<IGraphicBufferConsumer>* outConsumer, 66 const sp<IGraphicBufferAlloc>& allocator) { 67 LOG_ALWAYS_FATAL_IF(outProducer == NULL, 68 "BufferQueue: outProducer must not be NULL"); 69 LOG_ALWAYS_FATAL_IF(outConsumer == NULL, 70 "BufferQueue: outConsumer must not be NULL"); 71 72 sp<BufferQueueCore> core(new BufferQueueCore(allocator)); 73 LOG_ALWAYS_FATAL_IF(core == NULL, 74 "BufferQueue: failed to create BufferQueueCore"); 75 76 sp<IGraphicBufferProducer> producer(new BufferQueueProducer(core)); 77 LOG_ALWAYS_FATAL_IF(producer == NULL, 78 "BufferQueue: failed to create BufferQueueProducer"); 79 80 sp<IGraphicBufferConsumer> consumer(new BufferQueueConsumer(core)); 81 LOG_ALWAYS_FATAL_IF(consumer == NULL, 82 "BufferQueue: failed to create BufferQueueConsumer"); 83 84 *outProducer = producer; 85 *outConsumer = consumer; 86} 87 88}; // namespace android 89