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23d015167a
much better performance now because frame decoding is statefull Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/* This file is part of the KDE libraries
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Copyright (C) 2022 Ivailo Monev <xakepa10@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef KIMGIO_WEBP_H
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#define KIMGIO_WEBP_H
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#include <QStringList>
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#include <QImageIOHandler>
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#include <QImage>
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#include <QPainter>
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#include <webp/decode.h>
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#include <webp/encode.h>
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#include <webp/demux.h>
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class WebPHandler : public QImageIOHandler
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{
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public:
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WebPHandler();
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~WebPHandler();
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bool canRead() const final;
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bool read(QImage *image) final;
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bool write(const QImage &image) final;
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QByteArray name() const final;
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bool supportsOption(QImageIOHandler::ImageOption option) const final;
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QVariant option(QImageIOHandler::ImageOption option) const final;
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void setOption(QImageIOHandler::ImageOption option, const QVariant &value) final;
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static bool canRead(QIODevice *device);
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bool jumpToImage(int imageNumber) final;
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int loopCount() const final;
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int imageCount() const final;
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int nextImageDelay() const final;
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int currentImageNumber() const final;
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private:
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int m_quality;
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int m_loopcount;
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int m_imagecount;
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int m_imagedelay;
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int m_currentimage;
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QByteArray m_data;
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WebPData m_webpdata;
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WebPAnimDecoderOptions m_webpanimoptions;
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WebPAnimDecoder* m_webpanimdec;
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QImage m_framebuffer;
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QPainter* m_framepainter;
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QRectF m_previousrect;
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QColor m_background;
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};
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class WebPPlugin : public QImageIOPlugin
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{
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public:
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QList<QByteArray> mimeTypes() const final;
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QImageIOPlugin::Capabilities capabilities(QIODevice *device, const QByteArray &format) const final;
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QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const final;
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};
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#endif // KIMGIO_WEBP_H
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