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Diffstat (limited to 'src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture_p.h')
-rw-r--r-- | src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture_p.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture_p.h b/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture_p.h new file mode 100644 index 0000000000..59e935b623 --- /dev/null +++ b/src/quick/scenegraph/compressedtexture/qsgcompressedatlastexture_p.h @@ -0,0 +1,119 @@ +/**************************************************************************** +** +** Copyright (C) 2018 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 QSGCOMPRESSEDATLASTEXTURE_P_H +#define QSGCOMPRESSEDATLASTEXTURE_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 <QtCore/QSize> + +#include <QtGui/qopengl.h> + +#include <QtQuick/QSGTexture> +#include <QtQuick/private/qsgareaallocator_p.h> +#include <QtQuick/private/qsgatlastexture_p.h> + +QT_BEGIN_NAMESPACE + +class QSGCompressedTextureFactory; + +namespace QSGCompressedAtlasTexture { + +class Texture; + +class Atlas : public QSGAtlasTexture::AtlasBase +{ +public: + Atlas(const QSize &size, uint format); + ~Atlas(); + + void generateTexture() override; + void uploadPendingTexture(int i) override; + + Texture *create(const QByteArray &data, int dataLength, int dataOffset, const QSize &size, const QSize &paddedSize); + + uint format() const { return m_format; } + +private: + uint m_format; +}; + +class Texture : public QSGAtlasTexture::TextureBase +{ + Q_OBJECT +public: + Texture(Atlas *atlas, const QRect &textureRect, const QByteArray &data, int dataLength, int dataOffset, const QSize &size); + ~Texture(); + + QSize textureSize() const override { return m_size; } + bool hasAlphaChannel() const override; + bool hasMipmaps() const override { return false; } + + QRectF normalizedTextureSubRect() const override { return m_texture_coords_rect; } + + QSGTexture *removedFromAtlas() const override; + + const QByteArray &data() const { return m_data; } + int sizeInBytes() const { return m_dataLength; } + int dataOffset() const { return m_dataOffset; } + +private: + QRectF m_texture_coords_rect; + mutable QSGTexture *m_nonatlas_texture; + QByteArray m_data; + QSize m_size; + int m_dataLength; + int m_dataOffset; +}; + +} + +QT_END_NAMESPACE + +#endif |