| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QSGRHITEXTUREGLYPHCACHE_P_H |
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| 5 | #define QSGRHITEXTUREGLYPHCACHE_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtGui/private/qtextureglyphcache_p.h> |
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| 19 | #include <rhi/qrhi.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | class QSGDefaultRenderContext; |
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| 24 | |
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| 25 | class QSGRhiTextureGlyphCache : public QImageTextureGlyphCache |
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| 26 | { |
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| 27 | public: |
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| 28 | QSGRhiTextureGlyphCache(QSGDefaultRenderContext *rc, |
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| 29 | QFontEngine::GlyphFormat format, const QTransform &matrix, |
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| 30 | const QColor &color = QColor()); |
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| 31 | ~QSGRhiTextureGlyphCache(); |
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| 32 | |
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| 33 | void createTextureData(int width, int height) override; |
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| 34 | void resizeTextureData(int width, int height) override; |
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| 35 | void beginFillTexture() override; |
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| 36 | void fillTexture(const Coord &c, glyph_t glyph, const QFixedPoint &subPixelPosition) override; |
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| 37 | void endFillTexture() override; |
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| 38 | int glyphPadding() const override; |
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| 39 | int maxTextureWidth() const override; |
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| 40 | int maxTextureHeight() const override; |
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| 41 | |
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| 42 | QRhiTexture *texture() const { return m_texture; } |
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| 43 | void commitResourceUpdates(QRhiResourceUpdateBatch *mergeInto); |
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| 44 | |
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| 45 | // Clamp the default -1 width and height to 0 for compatibility with |
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| 46 | // QOpenGLTextureGlyphCache. |
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| 47 | int width() const { return qMax(a: 0, b: m_size.width()); } |
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| 48 | int height() const { return qMax(a: 0, b: m_size.height()); } |
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| 49 | |
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| 50 | bool eightBitFormatIsAlphaSwizzled() const; |
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| 51 | |
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| 52 | private: |
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| 53 | void prepareGlyphImage(QImage *img); |
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| 54 | QRhiTexture *createEmptyTexture(QRhiTexture::Format format); |
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| 55 | |
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| 56 | QSGDefaultRenderContext *m_rc; |
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| 57 | QRhi *m_rhi; |
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| 58 | bool m_resizeWithTextureCopy; |
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| 59 | QRhiTexture *m_texture = nullptr; |
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| 60 | QSize m_size; |
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| 61 | bool m_bgra = false; |
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| 62 | QVarLengthArray<QRhiTextureUploadEntry, 16> m_uploads; |
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| 63 | }; |
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| 64 | |
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| 65 | QT_END_NAMESPACE |
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| 66 | |
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| 67 | #endif // QSGRHITEXTUREGLYPHCACHE_P_H |
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| 68 | |
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