// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QPLATFORMPIXMAP_H

#define QPLATFORMPIXMAP_H

//

//  W A R N I N G

//  -------------

//

// This file is part of the QPA API and is not meant to be used

// in applications. Usage of this API may make your code

// source and binary incompatible with future versions of Qt.

//

#include <QtGui/qtguiglobal.h>

#include <QtGui/qpixmap.h>

#include <QtCore/qatomic.h>

QT_BEGIN_NAMESPACE

class QImageReader;

class Q_GUI_EXPORT QPlatformPixmap

{

public:

    enum PixelType {

        // WARNING: Do not change the first two

        // Must match QPixmap::Type

        PixmapType, BitmapType

    };

    enum ClassId { RasterClass, DirectFBClass,

                   BlitterClass, Direct2DClass,

                   X11Class, CustomClass = 1024 };

    QPlatformPixmap(PixelType pixelType, int classId);

    virtual ~QPlatformPixmap();

    virtual QPlatformPixmap *createCompatiblePlatformPixmap() const;

    virtual void resize(int width, int height) = 0;

    virtual void fromImage(const QImage &image,

                           Qt::ImageConversionFlags flags) = 0;

    virtual void fromImageInPlace(QImage &image,

                                  Qt::ImageConversionFlags flags)

    {

        fromImage(image, flags);

    }

    virtual void fromImageReader(QImageReader *imageReader,

                                 Qt::ImageConversionFlags flags);

    virtual bool fromFile(const QString &filename, const char *format,

                          Qt::ImageConversionFlags flags);

    virtual bool fromData(const uchar *buffer, uint len, const char *format,

                          Qt::ImageConversionFlags flags);

    virtual void copy(const QPlatformPixmap *data, const QRect &rect);

    virtual bool scroll(int dx, int dy, const QRect &rect);

    virtual int metric(QPaintDevice::PaintDeviceMetric metric) const = 0;

    virtual void fill(const QColor &color) = 0;

    virtual QBitmap mask() const;

    virtual void setMask(const QBitmap &mask);

    virtual bool hasAlphaChannel() const = 0;

    virtual QPixmap transformed(const QTransform &matrix,

                                Qt::TransformationMode mode) const;

    virtual QImage toImage() const = 0;

    virtual QImage toImage(const QRect &rect) const;

    virtual QPaintEngine* paintEngine() const = 0;

    inline int serialNumber() const { return ser_no; }

    inline PixelType pixelType() const { return type; }

    inline ClassId classId() const { return static_cast<ClassId>(id); }

    virtual qreal devicePixelRatio() const = 0;

    virtual void setDevicePixelRatio(qreal scaleFactor) = 0;

    virtual QImage* buffer();

    inline int width() const { return w; }

    inline int height() const { return h; }

    inline int colorCount() const { return metric(QPaintDevice::PdmNumColors); }

    inline int depth() const { return d; }

    inline bool isNull() const { return is_null; }

    inline qint64 cacheKey() const {

        int classKey = id;

        if (classKey >= 1024)

            classKey = -(classKey >> 10);

        return ((((qint64) classKey) << 56)

                | (((qint64) ser_no) << 32)

                | ((qint64) detach_no));

    }

    static QPlatformPixmap *create(int w, int h, PixelType type);

protected:

    void setSerialNumber(int serNo);

    void setDetachNumber(int detNo);

    int w;

    int h;

    int d;

    bool is_null;

private:

    friend class QPixmap;

    friend class QX11PlatformPixmap;

    friend class QImagePixmapCleanupHooks; // Needs to set is_cached

    friend class QOpenGLTextureCache; //Needs to check the reference count

    friend class QExplicitlySharedDataPointer<QPlatformPixmap>;

    QAtomicInt ref;

    int detach_no;

    PixelType type;

    int id;

    int ser_no;

    uint is_cached;

};

#  define QT_XFORM_TYPE_MSBFIRST 0

#  define QT_XFORM_TYPE_LSBFIRST 1

Q_GUI_EXPORT bool qt_xForm_helper(const QTransform&, int, int, int, uchar*, qsizetype, int, int, const uchar*, qsizetype, int, int);

QT_END_NAMESPACE

#endif // QPLATFORMPIXMAP_H