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Diffstat (limited to 'src/quick/scenegraph/compressedtexture/qsgcompressedtexture_p.h')
| -rw-r--r-- | src/quick/scenegraph/compressedtexture/qsgcompressedtexture_p.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/quick/scenegraph/compressedtexture/qsgcompressedtexture_p.h b/src/quick/scenegraph/compressedtexture/qsgcompressedtexture_p.h new file mode 100644 index 0000000000..aa87316809 --- /dev/null +++ b/src/quick/scenegraph/compressedtexture/qsgcompressedtexture_p.h @@ -0,0 +1,126 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSGCOMPRESSEDTEXTURE_P_H +#define QSGCOMPRESSEDTEXTURE_P_H + +// +// 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. +// + +#include <QSGTexture> +#include <QtQuick/private/qsgcontext_p.h> +#include <QQuickTextureFactory> +#include <QOpenGLFunctions> + +QT_BEGIN_NAMESPACE + +struct Q_QUICK_PRIVATE_EXPORT QSGCompressedTextureData +{ + QByteArray logName; + QByteArray data; + QSize size; + uint format = 0; + int dataOffset = 0; + int dataLength = 0; + bool hasAlpha = false; + + bool isValid() const; + int sizeInBytes() const; +}; + +Q_QUICK_PRIVATE_EXPORT QDebug operator<<(QDebug, const QSGCompressedTextureData *); + + +class Q_QUICK_PRIVATE_EXPORT QSGCompressedTexture : public QSGTexture +{ + Q_OBJECT +public: + typedef QSharedPointer<QSGCompressedTextureData> DataPtr; + + QSGCompressedTexture(const DataPtr& texData); + virtual ~QSGCompressedTexture(); + + int textureId() const override; + QSize textureSize() const override; + bool hasAlphaChannel() const override; + bool hasMipmaps() const override; + + void bind() override; + + const QSGCompressedTextureData *textureData(); + + static bool formatIsOpaque(quint32 glTextureFormat); + +protected: + DataPtr m_textureData; + QSize m_size; + mutable uint m_textureId = 0; + bool m_hasAlpha = false; + bool m_uploaded = false; +}; + +namespace QSGAtlasTexture { + class Manager; +} + +class Q_QUICK_PRIVATE_EXPORT QSGCompressedTextureFactory : public QQuickTextureFactory +{ +public: + QSGCompressedTextureFactory(const QSGCompressedTexture::DataPtr& texData); + QSGTexture *createTexture(QQuickWindow *) const override; + int textureByteCount() const override; + QSize textureSize() const override; + +protected: + QSGCompressedTexture::DataPtr m_textureData; +private: + friend class QSGAtlasTexture::Manager; +}; + +QT_END_NAMESPACE + +#endif // QSGCOMPRESSEDTEXTURE_P_H |