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39 | |
40 | // |
41 | // W A R N I N G |
42 | // ------------- |
43 | // |
44 | // This file is not part of the Qt API. It exists purely as an |
45 | // implementation detail. This header file may change from version to |
46 | // version without notice, or even be removed. |
47 | // |
48 | // We mean it. |
49 | // |
50 | |
51 | #ifndef QOPENGLTEXTURECACHE_P_H |
52 | #define QOPENGLTEXTURECACHE_P_H |
53 | |
54 | #include <QtGui/private/qtguiglobal_p.h> |
55 | #include <QHash> |
56 | #include <QObject> |
57 | #include <QCache> |
58 | #include <private/qopenglcontext_p.h> |
59 | #include <private/qopengltextureuploader_p.h> |
60 | #include <QtCore/qmutex.h> |
61 | |
62 | QT_BEGIN_NAMESPACE |
63 | |
64 | class QOpenGLCachedTexture; |
65 | |
66 | class Q_GUI_EXPORT QOpenGLTextureCache : public QOpenGLSharedResource |
67 | { |
68 | public: |
69 | static QOpenGLTextureCache *cacheForContext(QOpenGLContext *context); |
70 | |
71 | QOpenGLTextureCache(QOpenGLContext *); |
72 | ~QOpenGLTextureCache(); |
73 | |
74 | GLuint bindTexture(QOpenGLContext *context, const QPixmap &pixmap, |
75 | QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
76 | GLuint bindTexture(QOpenGLContext *context, const QImage &image, |
77 | QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
78 | |
79 | void invalidate(qint64 key); |
80 | |
81 | void invalidateResource() override; |
82 | void freeResource(QOpenGLContext *ctx) override; |
83 | |
84 | private: |
85 | GLuint bindTexture(QOpenGLContext *context, qint64 key, const QImage &image, QOpenGLTextureUploader::BindOptions options); |
86 | |
87 | QMutex m_mutex; |
88 | QCache<quint64, QOpenGLCachedTexture> m_cache; |
89 | }; |
90 | |
91 | class QOpenGLCachedTexture |
92 | { |
93 | public: |
94 | QOpenGLCachedTexture(GLuint id, QOpenGLTextureUploader::BindOptions options, QOpenGLContext *context); |
95 | ~QOpenGLCachedTexture() { m_resource->free(); } |
96 | |
97 | GLuint id() const { return m_resource->id(); } |
98 | QOpenGLTextureUploader::BindOptions options() const { return m_options; } |
99 | |
100 | private: |
101 | QOpenGLSharedResourceGuard *m_resource; |
102 | QOpenGLTextureUploader::BindOptions m_options; |
103 | }; |
104 | |
105 | QT_END_NAMESPACE |
106 | |
107 | #endif |
108 | |
109 | |