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Diffstat (limited to 'src/render/materialsystem/shadercache.cpp')
-rw-r--r-- | src/render/materialsystem/shadercache.cpp | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/src/render/materialsystem/shadercache.cpp b/src/render/materialsystem/shadercache.cpp deleted file mode 100644 index 78193755f..000000000 --- a/src/render/materialsystem/shadercache.cpp +++ /dev/null @@ -1,174 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the Qt3D module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL3$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPLv3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or later as published by the Free -** Software Foundation and appearing in the file LICENSE.GPL included in -** the packaging of this file. Please review the following information to -** ensure the GNU General Public License version 2.0 requirements will be -** met: http://www.gnu.org/licenses/gpl-2.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "shadercache_p.h" - -#include <QtCore/QMutexLocker> - -QT_BEGIN_NAMESPACE - -namespace Qt3DRender { -namespace Render { - -/*! - * \internal - * - * Destroys the ShaderCache and deletes all cached QOpenGLShaderPrograms - */ -ShaderCache::~ShaderCache() -{ - qDeleteAll(m_programHash); -} - -/*! - * \internal - * - * Looks up the QOpenGLShaderProgram corresponding to \a dna. Also checks to see if the cache - * contains a reference to this shader program from the Shader with peerId of \a shaderPeerId. - * If there is no existing reference for \a shaderPeerId, one is recorded. - * - * \return A pointer to the shader program if it is cached, nullptr otherwise - */ -QOpenGLShaderProgram *ShaderCache::getShaderProgramAndAddRef(ProgramDNA dna, Qt3DCore::QNodeId shaderPeerId, bool *wasPresent) -{ - auto shaderProgram = m_programHash.constFind(dna); - - // Some callers may wish to differentiate between a result of null due to - // not having anything in the cache and a result of null due to the cache - // containing a program the shaders of which failed to compile. - if (wasPresent) - *wasPresent = shaderProgram != m_programHash.constEnd(); - - if (shaderProgram != m_programHash.constEnd()) { - // Ensure we store the fact that shaderPeerId references this shader - QMutexLocker lock(&m_refsMutex); - QVector<Qt3DCore::QNodeId> &programRefs = m_programRefs[dna]; - auto it = std::lower_bound(programRefs.begin(), programRefs.end(), shaderPeerId); - if (*it != shaderPeerId) - programRefs.insert(it, shaderPeerId); - - m_pendingRemoval.removeOne(dna); - - return *shaderProgram; - } - - return nullptr; -} - -/*! - * \internal - * - * Inserts the \a program in the cache indexed by \a dna and adds a reference to it from - * \a shaderPeerId. The cache takes ownership of the \a program. - */ -void ShaderCache::insert(ProgramDNA dna, Qt3DCore::QNodeId shaderPeerId, QOpenGLShaderProgram *program) -{ - Q_ASSERT(!m_programHash.contains(dna)); - m_programHash.insert(dna, program); - QMutexLocker lock(&m_refsMutex); - Q_ASSERT(!m_programRefs.contains(dna)); - QVector<Qt3DCore::QNodeId> programRefs; - programRefs.push_back(shaderPeerId); - m_programRefs.insert(dna, programRefs); -} - -/*! - * \internal - * - * Removes a reference to the shader program indexed by \a dna from the Shader with peerId of - * \a shaderPeerId. If this was the last reference, the dna and corresponding shader are added - * to a list of items to be removed by the next call to purge. - */ -void ShaderCache::removeRef(ProgramDNA dna, Qt3DCore::QNodeId shaderPeerId) -{ - QMutexLocker lock(&m_refsMutex); - auto it = m_programRefs.find(dna); - if (it != m_programRefs.end()) { - QVector<Qt3DCore::QNodeId> &programRefs = it.value(); - programRefs.removeOne(shaderPeerId); - if (programRefs.isEmpty()) - m_pendingRemoval.append(dna); - } -} - -/*! - * \internal - * - * Iterates through a list of program dna's and checks to see if they still have no references - * from Shaders. If so, the dna and corresponding QOpenGLShaderProgram are removed from the cache. - */ -void ShaderCache::purge() -{ - QMutexLocker lock(&m_refsMutex); - for (const ProgramDNA &dna : qAsConst(m_pendingRemoval)) { - QVector<Qt3DCore::QNodeId> &programRefs = m_programRefs[dna]; - if (programRefs.isEmpty()) { - delete m_programHash.take(dna); - m_programRefs.remove(dna); - } - } - - m_pendingRemoval.clear(); -} - -/*! - * \internal - * - * Deletes all cached shader programs and removes any references - */ -void ShaderCache::clear() -{ - QMutexLocker lock(&m_refsMutex); - qDeleteAll(m_programHash); - m_programHash.clear(); - m_programRefs.clear(); - m_pendingRemoval.clear(); -} - -QOpenGLShaderProgram *ShaderCache::getShaderProgramForDNA(ProgramDNA dna) const -{ - return m_programHash.value(dna, nullptr); -} - -QVector<Qt3DCore::QNodeId> ShaderCache::shaderIdsForProgram(ProgramDNA dna) const -{ - return m_programRefs.value(dna); -} - -} // namespace Render -} // namespace Qt3DRender - -QT_END_NAMESPACE |