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generalize qt_memfill<T>() implementations

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Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2020-08-01 21:17:56 +03:00
parent 7286ec19be
commit 542bc73fc6
1 changed files with 37 additions and 53 deletions
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90
src/gui/painting/qdrawhelper_p.h
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@ -335,38 +335,6 @@ static inline uint PREMUL(uint x) {
| (((255*qGreen(p)) / qAlpha(p)) << 8) \
| ((255*qBlue(p)) / qAlpha(p))))
template <class DST, class SRC>
inline DST qt_colorConvert(const SRC color, const DST dummy)
{
Q_UNUSED(dummy);
return DST(color);
}
template <>
inline quint32 qt_colorConvert(const quint16 color, const quint32 dummy)
{
Q_UNUSED(dummy);
const int r = (color & 0xf800);
const int g = (color & 0x07e0);
const int b = (color & 0x001f);
const int tr = (r >> 8) | (r >> 13);
const int tg = (g >> 3) | (g >> 9);
const int tb = (b << 3) | (b >> 2);
return qRgb(tr, tg, tb);
}
template <>
inline quint16 qt_colorConvert(const quint32 color, const quint16 dummy)
{
Q_UNUSED(dummy);
const int r = qRed(color) << 8;
const int g = qGreen(color) << 3;
const int b = qBlue(color) >> 3;
return (r & 0xf800) | (g & 0x07e0)| (b & 0x001f);
}
class quint32p
{
public:
@ -1063,10 +1031,44 @@ qrgb444 qrgb444::operator+(qrgb444 v) const
return t;
}
template <class T>
inline void qt_memfill(T *dest, const T value, int count)
template <class DST, class SRC>
inline DST qt_colorConvert(const SRC color, const DST dummy)
{
::memset(dest, value, count);
Q_UNUSED(dummy);
return DST(color);
}
template <>
inline quint32 qt_colorConvert(const quint16 color, const quint32 dummy)
{
Q_UNUSED(dummy);
const int r = (color & 0xf800);
const int g = (color & 0x07e0);
const int b = (color & 0x001f);
const int tr = (r >> 8) | (r >> 13);
const int tg = (g >> 3) | (g >> 9);
const int tb = (b << 3) | (b >> 2);
return qRgb(tr, tg, tb);
}
template <>
inline quint16 qt_colorConvert(const quint32 color, const quint16 dummy)
{
Q_UNUSED(dummy);
const int r = qRed(color) << 8;
const int g = qGreen(color) << 3;
const int b = qBlue(color) >> 3;
return (r & 0xf800) | (g & 0x07e0)| (b & 0x001f);
}
template <class T>
inline void qt_memfill(T *dest, const T color, int count)
{
while (count--)
*dest++ = color;
}
template <class DST, class SRC>
@ -1077,24 +1079,6 @@ inline void qt_memfill(DST *dest, const SRC color, int count)
*dest++ = c;
}
template<> inline void qt_memfill(quint32 *dest, const quint32 color, int count)
{
while (count--)
*dest++ = color;
}
template<> inline void qt_memfill(quint16 *dest, const quint16 color, int count)
{
while (count--)
*dest++ = color;
}
template<> inline void qt_memfill(quint8 *dest, const quint8 color, int count)
{
while (count--)
*dest++ = color;
}
template <class T>
inline void qt_rectfill(T *dest, const T value,
int x, int y, int width, int height, int stride)