diff options
Diffstat (limited to 'src/gui/opengl/qopengltexturecache_p.h')
-rw-r--r-- | src/gui/opengl/qopengltexturecache_p.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/gui/opengl/qopengltexturecache_p.h b/src/gui/opengl/qopengltexturecache_p.h new file mode 100644 index 0000000000..bdee9f4e83 --- /dev/null +++ b/src/gui/opengl/qopengltexturecache_p.h @@ -0,0 +1,102 @@ +/**************************************************************************** +** +** 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. +// + +#ifndef QOPENGLTEXTURECACHE_P_H +#define QOPENGLTEXTURECACHE_P_H + +#include <QHash> +#include <QObject> +#include <QtGui/QtGui> +#include <private/qopenglcontext_p.h> +#include <QtCore/qmutex.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLCachedTexture +{ +public: + QOpenGLCachedTexture(GLuint id, QOpenGLContext *context); + ~QOpenGLCachedTexture() { m_resource->free(); } + + GLuint id() const { return m_resource->id(); } + +private: + QOpenGLSharedResourceGuard *m_resource; +}; + +class QOpenGLTextureCache : public QOpenGLSharedResource +{ +public: + static QOpenGLTextureCache *cacheForContext(QOpenGLContext *context); + + QOpenGLTextureCache(QOpenGLContext *); + ~QOpenGLTextureCache(); + + GLuint bindTexture(QOpenGLContext *context, const QPixmap &pixmap); + GLuint bindTexture(QOpenGLContext *context, const QImage &image); + + void invalidate(qint64 key); + + void invalidateResource(); + void freeResource(QOpenGLContext *ctx); + +private: + GLuint bindTexture(QOpenGLContext *context, qint64 key, const QImage &image); + + QMutex m_mutex; + QCache<quint64, QOpenGLCachedTexture> m_cache; +}; + +QT_END_NAMESPACE + +#endif + |