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Diffstat (limited to 'src/quick/scenegraph/qsgrhitextureglyphcache_p.h')
| -rw-r--r-- | src/quick/scenegraph/qsgrhitextureglyphcache_p.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/quick/scenegraph/qsgrhitextureglyphcache_p.h b/src/quick/scenegraph/qsgrhitextureglyphcache_p.h new file mode 100644 index 0000000000..49854a596e --- /dev/null +++ b/src/quick/scenegraph/qsgrhitextureglyphcache_p.h @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2019 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 QSGRHITEXTUREGLYPHCACHE_P_H +#define QSGRHITEXTUREGLYPHCACHE_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 <QtGui/private/qtextureglyphcache_p.h> +#include <QtGui/private/qrhi_p.h> + +QT_BEGIN_NAMESPACE + +class QSGRhiTextureGlyphCache : public QImageTextureGlyphCache +{ +public: + QSGRhiTextureGlyphCache(QRhi *rhi, QFontEngine::GlyphFormat format, const QTransform &matrix, + const QColor &color = QColor()); + ~QSGRhiTextureGlyphCache(); + + void createTextureData(int width, int height) override; + void resizeTextureData(int width, int height) override; + void beginFillTexture() override; + void fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition) override; + void endFillTexture() override; + int glyphPadding() const override; + int maxTextureWidth() const override; + int maxTextureHeight() const override; + + QRhiTexture *texture() const { return m_texture; } + void commitResourceUpdates(QRhiResourceUpdateBatch *mergeInto); + + // Clamp the default -1 width and height to 0 for compatibility with + // QOpenGLTextureGlyphCache. + int width() const { return qMax(0, m_size.width()); } + int height() const { return qMax(0, m_size.height()); } + + bool eightBitFormatIsAlphaSwizzled() const; + +private: + void prepareGlyphImage(QImage *img); + QRhiTexture *createEmptyTexture(QRhiTexture::Format format); + + QRhi *m_rhi; + bool m_resizeWithTextureCopy; + QRhiResourceUpdateBatch *m_resourceUpdates = nullptr; + QRhiTexture *m_texture = nullptr; + QSize m_size; + bool m_bgra = false; + QVarLengthArray<QRhiTextureUploadEntry, 16> m_uploads; + QSet<QRhiTexture *> m_pendingDispose; +}; + +QT_END_NAMESPACE + +#endif // QSGRHITEXTUREGLYPHCACHE_P_H |