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 28 BufferQueue::ProxyConsumerListener::ProxyConsumerListener( 29 const wp<ConsumerListener>& consumerListener): 30 mConsumerListener(consumerListener) {} 31 32 BufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {} 33 34 void BufferQueue::ProxyConsumerListener::onFrameAvailable() { 35 sp<ConsumerListener> listener(mConsumerListener.promote()); 36 if (listener != NULL) { 37 listener->onFrameAvailable(); 38 } 39 } 40 41 void BufferQueue::ProxyConsumerListener::onBuffersReleased() { 42 sp<ConsumerListener> listener(mConsumerListener.promote()); 43 if (listener != NULL) { 44 listener->onBuffersReleased(); 45 } 46 } 47 48 void BufferQueue::ProxyConsumerListener::onSidebandStreamChanged() { 49 sp<ConsumerListener> listener(mConsumerListener.promote()); 50 if (listener != NULL) { 51 listener->onSidebandStreamChanged(); 52 } 53 } 54 55 void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer, 56 sp<IGraphicBufferConsumer>* outConsumer, 57 const sp<IGraphicBufferAlloc>& allocator) { 58 LOG_ALWAYS_FATAL_IF(outProducer == NULL, 59 "BufferQueue: outProducer must not be NULL"); 60 LOG_ALWAYS_FATAL_IF(outConsumer == NULL, 61 "BufferQueue: outConsumer must not be NULL"); 62 63 sp<BufferQueueCore> core(new BufferQueueCore(allocator)); 64 LOG_ALWAYS_FATAL_IF(core == NULL, 65 "BufferQueue: failed to create BufferQueueCore"); 66 67 sp<IGraphicBufferProducer> producer(new BufferQueueProducer(core)); 68 LOG_ALWAYS_FATAL_IF(producer == NULL, 69 "BufferQueue: failed to create BufferQueueProducer"); 70 71 sp<IGraphicBufferConsumer> consumer(new BufferQueueConsumer(core)); 72 LOG_ALWAYS_FATAL_IF(consumer == NULL, 73 "BufferQueue: failed to create BufferQueueConsumer"); 74 75 *outProducer = producer; 76 *outConsumer = consumer; 77 } 78 79 }; // namespace android 80
