qrgb666 Class Reference

#include <qdrawhelper_p.h>

Public Functions
quint8	alpha () const
Q_STATIC_INLINE_FUNCTION quint8	alpha (quint8 a)
qrgb666	byte_mul (quint8 a) const
Q_STATIC_INLINE_FUNCTION bool	hasAlpha ()
Q_STATIC_INLINE_FUNCTION quint8	ialpha (quint8 a)
	operator quint32 () const
bool	operator!= (const qrgb666 &v) const
qrgb666	operator+ (qrgb666 v) const
bool	operator== (const qrgb666 &v) const
	qrgb666 ()
	qrgb666 (quint32 v)
	qrgb666 (const qargb6666 &v)
quint32	rawValue () const
qrgb666	truncedAlpha ()

Properties
quint8	data [3]

Friends
class	qargb6666

Detailed Description

Definition at line 1239 of file qdrawhelper_p.h.

Constructors and Destructors

qrgb666() [1/3]

qrgb666::qrgb666 ( )

inline

Definition at line 1244 of file qdrawhelper_p.h.

{}

qrgb666() [2/3]

qrgb666::qrgb666 ( quint32  v )

inline

Definition at line 1272 of file qdrawhelper_p.h.

{
    const uchar b = qBlue(v);
    const uchar g = qGreen(v);
    const uchar r = qRed(v);
    const uint p = (b >> 2) | ((g >> 2) << 6) | ((r >> 2) << 12);
    data[0] = qBlue(p);
    data[1] = qGreen(p);
    data[2] = qRed(p);
}

qrgb666() [3/3]

qrgb666::qrgb666 ( const qargb6666 &  v )

inline

Definition at line 1283 of file qdrawhelper_p.h.

{
    data[0] = v.data[0];
    data[1] = v.data[1];
    data[2] = v.data[2] & 0x03;
}

Functions

alpha() [1/2]

quint8 qrgb666::alpha ( ) const

inline

Definition at line 1250 of file qdrawhelper_p.h.

{ return 0xff; }

alpha() [2/2]

Q_STATIC_INLINE_FUNCTION quint8 qrgb666::alpha ( quint8  a )

inline

Definition at line 1252 of file qdrawhelper_p.h.

{ return (a + 1) >> 2; }

byte_mul()

qrgb666 qrgb666::byte_mul ( quint8  a ) const

inline

Definition at line 1310 of file qdrawhelper_p.h.

{
    const quint32 x = (data[2] << 16) | (data[1] << 8) | data[0];
    const quint32 t = ((((x & 0x03f03f) * a) >> 6) & 0x03f03f) |
                      ((((x & 0x000fc0) * a) >> 6) & 0x000fc0);

    qrgb666 r;
    r.data[0] = t & 0xff;
    r.data[1] = (t >> 8) & 0xff;
    r.data[2] = (t >> 16) & 0xff;
    return r;
}

hasAlpha()

Q_STATIC_INLINE_FUNCTION bool qrgb666::hasAlpha ( )

inline

Definition at line 1242 of file qdrawhelper_p.h.

{ return false; }

ialpha()

Q_STATIC_INLINE_FUNCTION quint8 qrgb666::ialpha ( quint8  a )

inline

Definition at line 1253 of file qdrawhelper_p.h.

{ return (255 - a + 1) >> 2; }

operator quint32()

qrgb666::operator quint32 ( ) const

inline

Definition at line 1290 of file qdrawhelper_p.h.

{
    const uchar r = (data[2] << 6) | ((data[1] & 0xf0) >> 2) | (data[2] & 0x3);
    const uchar g = (data[1] << 4) | ((data[0] & 0xc0) >> 4) | ((data[1] & 0x0f) >> 2);
    const uchar b = (data[0] << 2) | ((data[0] & 0x3f) >> 4);
    return qRgb(r, g, b);
}

operator!=()

bool qrgb666::operator!= ( const qrgb666 &  v ) const

inline

Definition at line 1259 of file qdrawhelper_p.h.

{ return !(*this == v); }

operator+()

qrgb666 qrgb666::operator+ ( qrgb666  v ) const

inline

Definition at line 1298 of file qdrawhelper_p.h.

{
    const quint32 x1 = (data[2] << 16) | (data[1] << 8) | data[0];
    const quint32 x2 = (v.data[2] << 16) | (v.data[1] << 8) | v.data[0];
    const quint32 t = x1 + x2;
    qrgb666 r;
    r.data[0] = t & 0xff;
    r.data[1] = (t >> 8) & 0xff;
    r.data[2] = (t >> 16) & 0xff;
    return r;
}

operator==()

bool qrgb666::operator== ( const qrgb666 &  v ) const

inline

Definition at line 1323 of file qdrawhelper_p.h.

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

rawValue()

quint32 qrgb666::rawValue ( ) const

inline

Definition at line 1261 of file qdrawhelper_p.h.

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

truncedAlpha()

qrgb666 qrgb666::truncedAlpha ( )

inline

Definition at line 1251 of file qdrawhelper_p.h.

{ return *this; }

Friends and Related Functions

qargb6666

friend class qargb6666

friend

Definition at line 1267 of file qdrawhelper_p.h.

Properties

data

quint8 qrgb666::data[3]

private

Definition at line 1269 of file qdrawhelper_p.h.

Referenced by byte_mul(), operator+(), operator==(), and qargb6666::qargb6666().

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

• /src/gui/painting/qdrawhelper_p.h