qargb6666 Class Reference

#include <qdrawhelper_p.h>

Public Functions
quint8	alpha () const
Q_STATIC_INLINE_FUNCTION quint8	alpha (quint8 a)
qargb6666	byte_mul (quint8 a) const
Q_STATIC_INLINE_FUNCTION bool	hasAlpha ()
Q_STATIC_INLINE_FUNCTION quint8	ialpha (quint8 a)
	operator quint32 () const
qargb6666	operator+ (qargb6666 v) const
bool	operator== (const qargb6666 &v) const
	qargb6666 ()
	qargb6666 (quint32 v)
	qargb6666 (quint32p v)
	qargb6666 (const qargb6666 &v)
	qargb6666 (const qrgb666 &v)
quint32	rawValue () const
qargb6666	truncedAlpha ()

Properties
quint8	data [3]

Friends
class	qrgb666

Detailed Description

Definition at line 1209 of file qdrawhelper_p.h.

Constructors and Destructors

qargb6666() [1/5]

qargb6666::qargb6666 ( )

inline

Definition at line 1214 of file qdrawhelper_p.h.

{}

qargb6666() [2/5]

qargb6666::qargb6666 ( quint32  v )

inline

Definition at line 1215 of file qdrawhelper_p.h.

Referenced by qargb6666().

{ *this = qargb6666(quint32p(v)); }

qargb6666() [3/5]

qargb6666::qargb6666 ( quint32p  v )

inlineexplicit

Definition at line 1330 of file qdrawhelper_p.h.

{
    const quint8 b = qBlue(v) >> 2;
    const quint8 g = qGreen(v) >> 2;
    const quint8 r = qRed(v) >> 2;
    const quint8 a = qAlpha(v) >> 2;
    const uint p = (a << 18) | (r << 12) | (g << 6) | b;
    data[0] = qBlue(p);
    data[1] = qGreen(p);
    data[2] = qRed(p);
}

qargb6666() [4/5]

qargb6666::qargb6666 ( const qargb6666 &  v )

inline

Definition at line 1342 of file qdrawhelper_p.h.

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

qargb6666() [5/5]

qargb6666::qargb6666 ( const qrgb666 &  v )

inline

Definition at line 1349 of file qdrawhelper_p.h.

{
    data[0] = v.data[0];
    data[1] = v.data[1];
    data[2] = (v.data[2] | 0xfc);
}

Functions

alpha() [1/2]

quint8 qargb6666::alpha ( ) const

inline

Definition at line 1377 of file qdrawhelper_p.h.

{
    return (data[2] & 0xfc) | (data[2] >> 6);
}

alpha() [2/2]

Q_STATIC_INLINE_FUNCTION quint8 qargb6666::alpha ( quint8  a )

inline

Definition at line 1224 of file qdrawhelper_p.h.

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

byte_mul()

qargb6666 qargb6666::byte_mul ( quint8  a ) const

inline

Definition at line 1382 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 & 0xfc0fc0) * a) >> 6) & 0xfc0fc0);

    qargb6666 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 qargb6666::hasAlpha ( )

inline

Definition at line 1212 of file qdrawhelper_p.h.

{ return true; }

ialpha()

Q_STATIC_INLINE_FUNCTION quint8 qargb6666::ialpha ( quint8  a )

inline

Definition at line 1225 of file qdrawhelper_p.h.

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

operator quint32()

qargb6666::operator quint32 ( ) const

inline

Definition at line 1356 of file qdrawhelper_p.h.

{
    const quint8 r = (data[2] << 6) | ((data[1] & 0xf0) >> 2) | (data[2] & 0x3);
    const quint8 g = (data[1] << 4) | ((data[0] & 0xc0) >> 4) | ((data[1] & 0x0f) >> 2);
    const quint8 b = (data[0] << 2) | ((data[0] & 0x3f) >> 4);
    const quint8 a = (data[2] & 0xfc) | (data[2] >> 6);
    return qRgba(r, g, b, a);
}

operator+()

qargb6666 qargb6666::operator+ ( qargb6666  v ) const

inline

Definition at line 1365 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;
    qargb6666 r;
    r.data[0] = t & 0xff;
    r.data[1] = (t >> 8) & 0xff;
    r.data[2] = (t >> 16) & 0xff;
    return r;
}

operator==()

bool qargb6666::operator== ( const qargb6666 &  v ) const

inline

Definition at line 1395 of file qdrawhelper_p.h.

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

rawValue()

quint32 qargb6666::rawValue ( ) const

inline

Definition at line 1402 of file qdrawhelper_p.h.

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

truncedAlpha()

qargb6666 qargb6666::truncedAlpha ( )

inline

Definition at line 1223 of file qdrawhelper_p.h.

{ return *this; }

Friends and Related Functions

qrgb666

friend class qrgb666

friend

Definition at line 1234 of file qdrawhelper_p.h.

Properties

data

quint8 qargb6666::data[3]

private

Definition at line 1235 of file qdrawhelper_p.h.

Referenced by byte_mul(), operator+(), operator==(), qargb6666(), and qrgb666::qrgb666().

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

• /src/gui/painting/qdrawhelper_p.h