| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | // |
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| 5 | // W A R N I N G |
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| 6 | // ------------- |
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| 7 | // |
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| 8 | // This file is not part of the Qt API. It exists purely as an |
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| 9 | // implementation detail. This header file may change from version to |
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| 10 | // version without notice, or even be removed. |
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| 11 | // |
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| 12 | // We mean it. |
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| 13 | // |
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| 14 | |
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| 15 | #ifndef QOPENGLTEXTURECACHE_P_H |
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| 16 | #define QOPENGLTEXTURECACHE_P_H |
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| 17 | |
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| 18 | #include <QtOpenGL/qtopenglglobal.h> |
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| 19 | #include <QHash> |
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| 20 | #include <QObject> |
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| 21 | #include <QCache> |
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| 22 | #include <private/qopenglcontext_p.h> |
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| 23 | #include <private/qopengltextureuploader_p.h> |
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| 24 | #include <QtCore/qmutex.h> |
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| 25 | |
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| 26 | QT_BEGIN_NAMESPACE |
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| 27 | |
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| 28 | class QOpenGLCachedTexture; |
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| 29 | |
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| 30 | class Q_OPENGL_EXPORT QOpenGLTextureCache : public QOpenGLSharedResource |
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| 31 | { |
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| 32 | public: |
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| 33 | static QOpenGLTextureCache *cacheForContext(QOpenGLContext *context); |
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| 34 | |
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| 35 | QOpenGLTextureCache(QOpenGLContext *); |
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| 36 | ~QOpenGLTextureCache(); |
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| 37 | |
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| 38 | enum class BindResultFlag : quint8 { |
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| 39 | NewTexture = 0x01 |
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| 40 | }; |
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| 41 | Q_DECLARE_FLAGS(BindResultFlags, BindResultFlag) |
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| 42 | |
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| 43 | struct BindResult { |
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| 44 | GLuint id; |
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| 45 | BindResultFlags flags; |
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| 46 | }; |
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| 47 | |
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| 48 | BindResult bindTexture(QOpenGLContext *context, const QPixmap &pixmap, |
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| 49 | QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
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| 50 | BindResult bindTexture(QOpenGLContext *context, const QImage &image, |
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| 51 | QOpenGLTextureUploader::BindOptions options = QOpenGLTextureUploader::PremultipliedAlphaBindOption); |
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| 52 | |
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| 53 | void invalidate(qint64 key); |
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| 54 | |
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| 55 | void invalidateResource() override; |
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| 56 | void freeResource(QOpenGLContext *ctx) override; |
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| 57 | |
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| 58 | private: |
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| 59 | BindResult bindTexture(QOpenGLContext *context, qint64 key, const QImage &image, QOpenGLTextureUploader::BindOptions options); |
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| 60 | |
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| 61 | QMutex m_mutex; |
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| 62 | QCache<quint64, QOpenGLCachedTexture> m_cache; |
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| 63 | }; |
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| 64 | |
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| 65 | Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLTextureCache::BindResultFlags) |
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| 66 | |
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| 67 | class QOpenGLCachedTexture |
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| 68 | { |
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| 69 | public: |
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| 70 | QOpenGLCachedTexture(GLuint id, QOpenGLTextureUploader::BindOptions options, QOpenGLContext *context); |
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| 71 | ~QOpenGLCachedTexture() { m_resource->free(); } |
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| 72 | |
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| 73 | GLuint id() const { return m_resource->id(); } |
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| 74 | QOpenGLTextureUploader::BindOptions options() const { return m_options; } |
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| 75 | |
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| 76 | private: |
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| 77 | QOpenGLSharedResourceGuard *m_resource; |
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| 78 | QOpenGLTextureUploader::BindOptions m_options; |
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| 79 | }; |
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| 80 | |
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| 81 | QT_END_NAMESPACE |
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| 82 | |
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| 83 | #endif |
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| 84 | |
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| 85 | |
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