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Diffstat (limited to 'src/opengl/qopengltexturecache_p.h')
-rw-r--r-- | src/opengl/qopengltexturecache_p.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/opengl/qopengltexturecache_p.h b/src/opengl/qopengltexturecache_p.h new file mode 100644 index 0000000000..14e03ebea1 --- /dev/null +++ b/src/opengl/qopengltexturecache_p.h @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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 <QtOpenGL/qtopenglglobal.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_OPENGL_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 + |