| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 Paul Lemire |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt3D module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "buffermanager_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| namespace Render { |
| |
| BufferManager::BufferManager() |
| { |
| } |
| |
| BufferManager::~BufferManager() |
| { |
| } |
| |
| void BufferManager::addDirtyBuffer(Qt3DCore::QNodeId bufferId) |
| { |
| if (!m_dirtyBuffers.contains(bufferId)) |
| m_dirtyBuffers.push_back(bufferId); |
| } |
| |
| QVector<Qt3DCore::QNodeId> BufferManager::takeDirtyBuffers() |
| { |
| return qMove(m_dirtyBuffers); |
| } |
| |
| // Called in QAspectThread::syncChanges |
| void BufferManager::removeBufferReference(Qt3DCore::QNodeId bufferId) |
| { |
| QMutexLocker lock(&m_mutex); |
| Q_ASSERT(m_bufferReferences.contains(bufferId) && m_bufferReferences[bufferId] > 0); |
| m_bufferReferences[bufferId]--; |
| } |
| |
| // Called in QAspectThread |
| void BufferManager::addBufferReference(Qt3DCore::QNodeId bufferId) |
| { |
| QMutexLocker lock(&m_mutex); |
| m_bufferReferences[bufferId]++; |
| } |
| |
| // Called in Render thread |
| QVector<Qt3DCore::QNodeId> BufferManager::takeBuffersToRelease() |
| { |
| QMutexLocker lock(&m_mutex); |
| QVector<Qt3DCore::QNodeId> buffersToRelease; |
| for (auto it = m_bufferReferences.begin(), end = m_bufferReferences.end(); it != end; /*erasing*/) { |
| if (it.value() == 0) { |
| buffersToRelease.append(it.key()); |
| it = m_bufferReferences.erase(it); |
| } else { |
| ++it; |
| } |
| } |
| return buffersToRelease; |
| } |
| |
| } // namespace Render |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |