replicant-frameworks_native/libs/gui/BufferItemConsumer.cpp

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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "BufferItemConsumer"
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include <utils/Log.h>
#include <gui/BufferItemConsumer.h>
#define BI_LOGV(x, ...) ALOGV("[%s] "x, mName.string(), ##__VA_ARGS__)
#define BI_LOGD(x, ...) ALOGD("[%s] "x, mName.string(), ##__VA_ARGS__)
#define BI_LOGI(x, ...) ALOGI("[%s] "x, mName.string(), ##__VA_ARGS__)
#define BI_LOGW(x, ...) ALOGW("[%s] "x, mName.string(), ##__VA_ARGS__)
#define BI_LOGE(x, ...) ALOGE("[%s] "x, mName.string(), ##__VA_ARGS__)
namespace android {
BufferItemConsumer::BufferItemConsumer(uint32_t consumerUsage,
int bufferCount, bool synchronousMode) :
ConsumerBase(new BufferQueue(true) )
{
mBufferQueue->setConsumerUsageBits(consumerUsage);
mBufferQueue->setSynchronousMode(synchronousMode);
mBufferQueue->setMaxAcquiredBufferCount(bufferCount);
}
BufferItemConsumer::~BufferItemConsumer() {
}
void BufferItemConsumer::setName(const String8& name) {
Mutex::Autolock _l(mMutex);
mName = name;
mBufferQueue->setConsumerName(name);
}
status_t BufferItemConsumer::acquireBuffer(BufferItem *item, bool waitForFence) {
status_t err;
if (!item) return BAD_VALUE;
Mutex::Autolock _l(mMutex);
err = acquireBufferLocked(item);
if (err != OK) {
if (err != NO_BUFFER_AVAILABLE) {
BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
}
return err;
}
if (waitForFence && item->mFence.get()) {
err = item->mFence->waitForever(1000, "BufferItemConsumer::acquireBuffer");
if (err != OK) {
BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
strerror(-err), err);
return err;
}
}
item->mGraphicBuffer = mSlots[item->mBuf].mGraphicBuffer;
return OK;
}
status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
const sp<Fence>& releaseFence) {
status_t err;
Mutex::Autolock _l(mMutex);
err = addReleaseFenceLocked(item.mBuf, releaseFence);
err = releaseBufferLocked(item.mBuf, EGL_NO_DISPLAY,
EGL_NO_SYNC_KHR);
if (err != OK) {
BI_LOGE("Failed to release buffer: %s (%d)",
strerror(-err), err);
}
return err;
}
} // namespace android