diff options
author | Gunnar Sletta <gunnar.sletta@nokia.com> | 2011-09-13 08:54:45 +0200 |
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committer | Gunnar Sletta <gunnar.sletta@nokia.com> | 2011-09-13 08:54:45 +0200 |
commit | b62bd0584a7872b6917917009b707785b3abd077 (patch) | |
tree | 9981f274712c098cabbff0c4667672a3934e5393 /src/gui/opengl/qopenglgradientcache_p.h | |
parent | 5e10745dca1d10025404a9f268f03ae697fb10cc (diff) | |
parent | 97baad65f65783d2b5ff938f6217aec9434f2e5f (diff) |
Merge branch 'refactor'
Conflicts:
mkspecs/qws/linux-lsb-g++/qmake.conf
src/gui/image/qpixmap_mac.cpp
src/gui/painting/qpaintengine_x11.cpp
src/gui/painting/qtessellator.cpp
src/gui/text/qfontengine_qws.cpp
src/gui/text/qfontengine_x11.cpp
src/gui/widgets/qlinecontrol.cpp
src/opengl/qgl.h
src/opengl/qgl_x11egl.cpp
src/plugins/plugins.pro
Change-Id: If52dcd55cd55f2983a756c2f843967702b60a310
Diffstat (limited to 'src/gui/opengl/qopenglgradientcache_p.h')
-rw-r--r-- | src/gui/opengl/qopenglgradientcache_p.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglgradientcache_p.h b/src/gui/opengl/qopenglgradientcache_p.h new file mode 100644 index 0000000000..53abf221d2 --- /dev/null +++ b/src/gui/opengl/qopenglgradientcache_p.h @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 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 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QMultiHash> +#include <QObject> +#include <QtGui/QtGui> +#include <private/qopenglcontext_p.h> +#include <QtCore/qmutex.h> + +QT_BEGIN_NAMESPACE + +class QOpenGL2GradientCache : public QOpenGLSharedResource +{ + struct CacheInfo + { + inline CacheInfo(QGradientStops s, qreal op, QGradient::InterpolationMode mode) : + stops(s), opacity(op), interpolationMode(mode) {} + + GLuint texId; + QGradientStops stops; + qreal opacity; + QGradient::InterpolationMode interpolationMode; + }; + + typedef QMultiHash<quint64, CacheInfo> QOpenGLGradientColorTableHash; + +public: + static QOpenGL2GradientCache *cacheForContext(QOpenGLContext *context); + + QOpenGL2GradientCache(QOpenGLContext *); + ~QOpenGL2GradientCache(); + + GLuint getBuffer(const QGradient &gradient, qreal opacity); + inline int paletteSize() const { return 1024; } + + void invalidateResource(); + void freeResource(QOpenGLContext *ctx); + +private: + inline int maxCacheSize() const { return 60; } + inline void generateGradientColorTable(const QGradient& gradient, + uint *colorTable, + int size, qreal opacity) const; + GLuint addCacheElement(quint64 hash_val, const QGradient &gradient, qreal opacity); + void cleanCache(); + + QOpenGLGradientColorTableHash cache; + QMutex m_mutex; +}; + +QT_END_NAMESPACE + |