| 1 | // Copyright (C) 2016 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 QWEBPHANDLER_P_H |
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| 5 | #define QWEBPHANDLER_P_H |
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| 6 | |
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| 7 | #include <QtGui/qcolor.h> |
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| 8 | #include <QtGui/qcolorspace.h> |
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| 9 | #include <QtGui/qimage.h> |
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| 10 | #include <QtGui/qimageiohandler.h> |
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| 11 | #include <QtCore/qbytearray.h> |
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| 12 | #include <QtCore/qsize.h> |
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| 13 | |
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| 14 | #include "webp/decode.h" |
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| 15 | #include "webp/demux.h" |
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| 16 | |
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| 17 | QT_BEGIN_NAMESPACE |
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| 18 | |
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| 19 | class QWebpHandler : public QImageIOHandler |
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| 20 | { |
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| 21 | public: |
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| 22 | QWebpHandler(); |
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| 23 | ~QWebpHandler(); |
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| 24 | |
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| 25 | public: |
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| 26 | bool canRead() const override; |
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| 27 | bool read(QImage *image) override; |
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| 28 | |
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| 29 | static bool canRead(QIODevice *device); |
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| 30 | |
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| 31 | bool write(const QImage &image) override; |
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| 32 | QVariant option(ImageOption option) const override; |
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| 33 | void setOption(ImageOption option, const QVariant &value) override; |
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| 34 | bool supportsOption(ImageOption option) const override; |
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| 35 | |
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| 36 | int imageCount() const override; |
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| 37 | int currentImageNumber() const override; |
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| 38 | QRect currentImageRect() const override; |
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| 39 | int loopCount() const override; |
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| 40 | int nextImageDelay() const override; |
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| 41 | |
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| 42 | private: |
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| 43 | bool ensureScanned() const; |
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| 44 | bool ensureDemuxer(); |
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| 45 | |
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| 46 | private: |
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| 47 | enum ScanState { |
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| 48 | ScanError = -1, |
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| 49 | ScanNotScanned = 0, |
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| 50 | ScanSuccess = 1, |
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| 51 | }; |
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| 52 | |
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| 53 | int m_quality; |
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| 54 | mutable ScanState m_scanState; |
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| 55 | WebPBitstreamFeatures m_features; |
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| 56 | uint32_t m_formatFlags; |
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| 57 | int m_loop; |
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| 58 | int m_frameCount; |
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| 59 | QColor m_bgColor; |
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| 60 | QByteArray m_rawData; |
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| 61 | WebPData m_webpData; |
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| 62 | WebPDemuxer *m_demuxer; |
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| 63 | WebPIterator m_iter; |
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| 64 | QColorSpace m_colorSpace; |
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| 65 | QImage *m_composited; // For animation frames composition |
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| 66 | }; |
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| 67 | |
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| 68 | QT_END_NAMESPACE |
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| 69 | |
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| 70 | #endif // WEBPHANDLER_H |
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| 71 | |
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