BufferItemConsumer.cpp revision b27254154642575dfb4bbfa79fbedde7d7ee23dd
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_NDEBUG 0 18#define LOG_TAG "BufferItemConsumer" 19#define ATRACE_TAG ATRACE_TAG_GRAPHICS 20#include <utils/Log.h> 21 22#include <gui/BufferItemConsumer.h> 23 24#define BI_LOGV(x, ...) ALOGV("[%s] "x, mName.string(), ##__VA_ARGS__) 25#define BI_LOGD(x, ...) ALOGD("[%s] "x, mName.string(), ##__VA_ARGS__) 26#define BI_LOGI(x, ...) ALOGI("[%s] "x, mName.string(), ##__VA_ARGS__) 27#define BI_LOGW(x, ...) ALOGW("[%s] "x, mName.string(), ##__VA_ARGS__) 28#define BI_LOGE(x, ...) ALOGE("[%s] "x, mName.string(), ##__VA_ARGS__) 29 30namespace android { 31 32BufferItemConsumer::BufferItemConsumer(uint32_t consumerUsage, 33 int bufferCount, bool synchronousMode) : 34 ConsumerBase(new BufferQueue(true) ) 35{ 36 mBufferQueue->setConsumerUsageBits(consumerUsage); 37 mBufferQueue->setSynchronousMode(synchronousMode); 38 mBufferQueue->setMaxAcquiredBufferCount(bufferCount); 39} 40 41BufferItemConsumer::~BufferItemConsumer() { 42} 43 44void BufferItemConsumer::setName(const String8& name) { 45 Mutex::Autolock _l(mMutex); 46 mName = name; 47 mBufferQueue->setConsumerName(name); 48} 49 50status_t BufferItemConsumer::acquireBuffer(BufferItem *item, bool waitForFence) { 51 status_t err; 52 53 if (!item) return BAD_VALUE; 54 55 Mutex::Autolock _l(mMutex); 56 57 err = acquireBufferLocked(item); 58 if (err != OK) { 59 if (err != NO_BUFFER_AVAILABLE) { 60 BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err); 61 } 62 return err; 63 } 64 65 if (waitForFence && item->mFence.get()) { 66 err = item->mFence->wait(Fence::TIMEOUT_NEVER); 67 if (err != OK) { 68 BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)", 69 strerror(-err), err); 70 return err; 71 } 72 } 73 74 item->mGraphicBuffer = mSlots[item->mBuf].mGraphicBuffer; 75 76 return OK; 77} 78 79status_t BufferItemConsumer::releaseBuffer(const BufferItem &item, 80 const sp<Fence>& releaseFence) { 81 status_t err; 82 83 Mutex::Autolock _l(mMutex); 84 85 err = addReleaseFence(item.mBuf, releaseFence); 86 87 err = releaseBufferLocked(item.mBuf, EGL_NO_DISPLAY, 88 EGL_NO_SYNC_KHR); 89 if (err != OK) { 90 BI_LOGE("Failed to release buffer: %s (%d)", 91 strerror(-err), err); 92 } 93 return err; 94} 95 96} // namespace android 97