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Add plugin for High Efficiency Image File Format (HEIF)

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Code partially by Sirius Bakke
This commit is contained in:
Daniel Novomesky
2021-02-12 13:27:53 +01:00
parent 7ba4d6adda
commit ca52d4ddf5
11 changed files with 823 additions and 1 deletions
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src/imageformats/heif_p.h Normal file
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/*
High Efficiency Image File Format (HEIF) support for QImage.
SPDX-FileCopyrightText: 2020 Sirius Bakke <sirius@bakke.co>
SPDX-FileCopyrightText: 2021 Daniel Novomesky <dnovomesky@gmail.com>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#ifndef KIMG_HEIF_P_H
#define KIMG_HEIF_P_H
#include <QImage>
#include <QImageIOPlugin>
class HEIFHandler : public QImageIOHandler
{
public:
HEIFHandler();
bool canRead() const override;
bool read(QImage *image) override;
bool write(const QImage &image) override;
static bool canRead(QIODevice *device);
QVariant option(ImageOption option) const override;
void setOption(ImageOption option, const QVariant &value) override;
bool supportsOption(ImageOption option) const override;
private:
bool ensureParsed() const;
bool ensureDecoder();
enum ParseHeicState {
ParseHeicError = -1,
ParseHeicNotParsed = 0,
ParseHeicSuccess = 1
};
ParseHeicState m_parseState;
int m_quality;
QImage m_current_image;
};
class HEIFPlugin : public QImageIOPlugin
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QImageIOHandlerFactoryInterface" FILE "heif.json")
public:
Capabilities capabilities(QIODevice *device, const QByteArray &format) const override;
QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const override;
};
#endif // KIMG_HEIF_P_H