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#ifndef QRGBA64_P_H
#define QRGBA64_P_H

#include <QtGui/qrgba64.h>
#include <QtGui/private/qdrawhelper_p.h>

QT_BEGIN_NAMESPACE

inline QRgba64 combineAlpha256(QRgba64 rgba64, uint alpha256)
{
    return QRgba64::fromRgba64(rgba64.red(), rgba64.green(), rgba64.blue(), (rgba64.alpha() * alpha256) >> 8);
}

inline QRgba64 multiplyAlpha256(QRgba64 rgba64, uint alpha256)
{
    return QRgba64::fromRgba64((rgba64.red()   * alpha256) >> 8,
                               (rgba64.green() * alpha256) >> 8,
                               (rgba64.blue()  * alpha256) >> 8,
                               (rgba64.alpha() * alpha256) >> 8);
}

inline QRgba64 multiplyAlpha255(QRgba64 rgba64, uint alpha255)
{
    return QRgba64::fromRgba64(qt_div_255(rgba64.red()   * alpha255),
                               qt_div_255(rgba64.green() * alpha255),
                               qt_div_255(rgba64.blue()  * alpha255),
                               qt_div_255(rgba64.alpha() * alpha255));
}

inline QRgba64 multiplyAlpha65535(QRgba64 rgba64, uint alpha65535)
{
    return QRgba64::fromRgba64(qt_div_65535(rgba64.red()   * alpha65535),
                               qt_div_65535(rgba64.green() * alpha65535),
                               qt_div_65535(rgba64.blue()  * alpha65535),
                               qt_div_65535(rgba64.alpha() * alpha65535));
}

inline QRgba64 interpolate256(QRgba64 x, uint alpha1, QRgba64 y, uint alpha2)
{
    return QRgba64::fromRgba64(multiplyAlpha256(x, alpha1) + multiplyAlpha256(y, alpha2));
}

inline QRgba64 interpolate255(QRgba64 x, uint alpha1, QRgba64 y, uint alpha2)
{
    return QRgba64::fromRgba64(multiplyAlpha255(x, alpha1) + multiplyAlpha255(y, alpha2));
}

QT_END_NAMESPACE

#endif // QRGBA64_P_H