| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
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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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| ** |
| ** 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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| ****************************************************************************/ |
| |
| // |
| // 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 <QtGui/private/qtguiglobal_p.h> |
| #include <QHash> |
| #include <QObject> |
| #include <QCache> |
| #include <private/qopenglcontext_p.h> |
| #include <private/qopengltextureuploader_p.h> |
| #include <QtCore/qmutex.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QOpenGLCachedTexture; |
| |
| class Q_GUI_EXPORT QOpenGLTextureCache : public QOpenGLSharedResource |
| { |
| public: |
| static QOpenGLTextureCache *cacheForContext(QOpenGLContext *context); |
| |
| QOpenGLTextureCache(QOpenGLContext *); |
| ~QOpenGLTextureCache(); |
| |
| GLuint bindTexture(QOpenGLContext *context, const QPixmap &pixmap, |
| QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
| GLuint bindTexture(QOpenGLContext *context, const QImage &image, |
| QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
| |
| void invalidate(qint64 key); |
| |
| void invalidateResource() override; |
| void freeResource(QOpenGLContext *ctx) override; |
| |
| private: |
| GLuint bindTexture(QOpenGLContext *context, qint64 key, const QImage &image, QOpenGLTextureUploader::BindOptions options); |
| |
| QMutex m_mutex; |
| QCache<quint64, QOpenGLCachedTexture> m_cache; |
| }; |
| |
| class QOpenGLCachedTexture |
| { |
| public: |
| QOpenGLCachedTexture(GLuint id, QOpenGLTextureUploader::BindOptions options, QOpenGLContext *context); |
| ~QOpenGLCachedTexture() { m_resource->free(); } |
| |
| GLuint id() const { return m_resource->id(); } |
| QOpenGLTextureUploader::BindOptions options() const { return m_options; } |
| |
| private: |
| QOpenGLSharedResourceGuard *m_resource; |
| QOpenGLTextureUploader::BindOptions m_options; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif |
| |