qargb8565 Class Reference

#include <qdrawhelper_p.h>

Public Functions
quint8	alpha () const
Q_STATIC_INLINE_FUNCTION quint8	alpha (quint8 a)
qargb8565	byte_mul (quint8 a) const
Q_STATIC_INLINE_FUNCTION bool	hasAlpha ()
Q_STATIC_INLINE_FUNCTION quint8	ialpha (quint8 a)
	operator quint16 () const
	operator quint32 () const
qargb8565	operator+ (qargb8565 v) const
bool	operator== (const qargb8565 &v) const
	qargb8565 ()
	qargb8565 (quint32 v)
	qargb8565 (quint32p v)
	qargb8565 (const qargb8565 &v)
	qargb8565 (const qrgb565 &v)
quint32	rawValue () const
quint16	rawValue16 () const
qargb8565	truncedAlpha ()

Properties
quint8	data [3]

Friends
class	qrgb565

Detailed Description

Definition at line 749 of file qdrawhelper_p.h.

Constructors and Destructors

qargb8565() [1/5]

qargb8565::qargb8565 ( )

inline

Definition at line 754 of file qdrawhelper_p.h.

Referenced by qargb8565().

{}

qargb8565() [2/5]

qargb8565::qargb8565 ( quint32  v )

inline

Definition at line 817 of file qdrawhelper_p.h.

{
    *this = qargb8565(quint32p(v));
}

qargb8565() [3/5]

qargb8565::qargb8565 ( quint32p  v )

inlineexplicit

Definition at line 822 of file qdrawhelper_p.h.

{
    data[0] = qAlpha(v);
    const int r = qRed(v);
    const int g = qGreen(v);
    const int b = qBlue(v);
    data[1] = ((g << 3) & 0xe0) | (b >> 3);
    data[2] = (r & 0xf8) | (g >> 5);
}

qargb8565() [4/5]

qargb8565::qargb8565 ( const qargb8565 &  v )

inline

Definition at line 832 of file qdrawhelper_p.h.

{
    data[0] = v.data[0];
    data[1] = v.data[1];
    data[2] = v.data[2];
}

qargb8565() [5/5]

qargb8565::qargb8565 ( const qrgb565 &  v )

inline

Definition at line 839 of file qdrawhelper_p.h.

{
    data[0] = 0xff;
    data[1] = v.data & 0xff;
    data[2] = v.data >> 8;
}

Functions

alpha() [1/2]

quint8 qargb8565::alpha ( ) const

inline

Definition at line 763 of file qdrawhelper_p.h.

Referenced by Blend_ARGB24_on_RGB16_SourceAlpha::write(), and Blend_ARGB24_on_RGB16_SourceAndConstAlpha::write().

{ return data[0]; }

alpha() [2/2]

Q_STATIC_INLINE_FUNCTION quint8 qargb8565::alpha ( quint8  a )

inline

Definition at line 769 of file qdrawhelper_p.h.

{ return (a + 1) >> 3; }

byte_mul()

qargb8565 qargb8565::byte_mul ( quint8  a ) const

inline

Definition at line 875 of file qdrawhelper_p.h.

Referenced by Blend_ARGB24_on_RGB16_SourceAndConstAlpha::write().

{
    qargb8565 result;
    result.data[0] = (data[0] * a) >> 5;

    const quint16 x = (data[2] << 8) | data[1];
    const quint16 t = ((((x & 0x07e0) >> 5) * a) & 0x07e0) |
                      ((((x & 0xf81f) * a) >> 5) & 0xf81f);
    result.data[1] = t & 0xff;
    result.data[2] = t >> 8;
    return result;
}

hasAlpha()

Q_STATIC_INLINE_FUNCTION bool qargb8565::hasAlpha ( )

inline

Definition at line 752 of file qdrawhelper_p.h.

{ return true; }

ialpha()

Q_STATIC_INLINE_FUNCTION quint8 qargb8565::ialpha ( quint8  a )

inline

Definition at line 770 of file qdrawhelper_p.h.

{ return 0x20 - alpha(a); }

operator quint16()

qargb8565::operator quint16 ( ) const

inline

Definition at line 859 of file qdrawhelper_p.h.

{
    return (data[2] << 8) | data[1];
}

operator quint32()

qargb8565::operator quint32 ( ) const

inline

Definition at line 846 of file qdrawhelper_p.h.

{
    const quint16 rgb = (data[2] << 8) | data[1];
    const int a = data[0];
    const int r = (rgb & 0xf800);
    const int g = (rgb & 0x07e0);
    const int b = (rgb & 0x001f);
    const int tr = qMin(a, (r >> 8) | (r >> 13));
    const int tg = qMin(a, (g >> 3) | (g >> 9));
    const int tb = qMin(a, (b << 3) | (b >> 2));
    return qRgba(tr, tg, tb, data[0]);
}

operator+()

qargb8565 qargb8565::operator+ ( qargb8565  v ) const

inline

Definition at line 864 of file qdrawhelper_p.h.

{
    qargb8565 t;
    t.data[0] = data[0] + v.data[0];
    const quint16 rgb =  ((data[2] + v.data[2]) << 8)
                         + (data[1] + v.data[1]);
    t.data[1] = rgb & 0xff;
    t.data[2] = rgb >> 8;
    return t;
}

operator==()

bool qargb8565::operator== ( const qargb8565 &  v ) const

inline

Definition at line 888 of file qdrawhelper_p.h.

{
    return data[0] == v.data[0]
        && data[1] == v.data[1]
        && data[2] == v.data[2];
}

rawValue()

quint32 qargb8565::rawValue ( ) const

inline

Definition at line 895 of file qdrawhelper_p.h.

{
    return (data[2] << 16) | (data[1] << 8) | data[0];
}

rawValue16()

quint16 qargb8565::rawValue16 ( ) const

inline

Definition at line 900 of file qdrawhelper_p.h.

Referenced by Blend_ARGB24_on_RGB16_SourceAlpha::write(), and Blend_ARGB24_on_RGB16_SourceAndConstAlpha::write().

{
    return (data[2] << 8) | data[1];
}

truncedAlpha()

qargb8565 qargb8565::truncedAlpha ( )

inline

Definition at line 764 of file qdrawhelper_p.h.

                                    {
        data[0] &= 0xf8;
        data[1] &= 0xdf;
        return *this;
    }

Friends and Related Functions

qrgb565

friend class qrgb565

friend

Definition at line 780 of file qdrawhelper_p.h.

Referenced by qrgb565::qrgb565().

Properties

data

quint8 qargb8565::data[3]

private

Definition at line 782 of file qdrawhelper_p.h.

Referenced by byte_mul(), operator+(), operator==(), qargb8565(), and qrgb565::qrgb565().

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The documentation for this class was generated from the following file:

• /src/gui/painting/qdrawhelper_p.h