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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#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
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