diff options
Diffstat (limited to 'src/gui/opengl/qopenglprogrambinarycache_p.h')
-rw-r--r-- | src/gui/opengl/qopenglprogrambinarycache_p.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglprogrambinarycache_p.h b/src/gui/opengl/qopenglprogrambinarycache_p.h new file mode 100644 index 0000000000..5625ad9c21 --- /dev/null +++ b/src/gui/opengl/qopenglprogrambinarycache_p.h @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QOPENGLPROGRAMBINARYCACHE_P_H +#define QOPENGLPROGRAMBINARYCACHE_P_H + +#include <QtGui/qtguiglobal.h> +#include <QtGui/qopenglshaderprogram.h> +#include <QtCore/qcache.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLProgramBinaryCache +{ +public: + struct ShaderDesc { + ShaderDesc() { } + ShaderDesc(QOpenGLShader::ShaderType type, const QByteArray &source = QByteArray()) + : type(type), source(source) + { } + QOpenGLShader::ShaderType type; + QByteArray source; + }; + struct ProgramDesc { + QVector<ShaderDesc> shaders; + }; + + QOpenGLProgramBinaryCache(); + + bool load(const QByteArray &cacheKey, uint programId); + void save(const QByteArray &cacheKey, uint programId); + +private: + QString cacheFileName(const QByteArray &cacheKey) const; + bool verifyHeader(const QByteArray &buf) const; + bool setProgramBinary(uint programId, uint blobFormat, const void *p, uint blobSize); + + QString m_cacheDir; + bool m_cacheWritable; + struct MemCacheEntry { + MemCacheEntry(const void *p, int size, uint format) + : blob(reinterpret_cast<const char *>(p), size), + format(format) + { } + QByteArray blob; + uint format; + }; + QCache<QByteArray, MemCacheEntry> m_memCache; +}; + +QT_END_NAMESPACE + +#endif |