diff options
Diffstat (limited to 'src/gui/painting/qcompositionfunctions.cpp')
| -rw-r--r-- | src/gui/painting/qcompositionfunctions.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/gui/painting/qcompositionfunctions.cpp b/src/gui/painting/qcompositionfunctions.cpp index ced213e36d..aa3f148934 100644 --- a/src/gui/painting/qcompositionfunctions.cpp +++ b/src/gui/painting/qcompositionfunctions.cpp @@ -1045,12 +1045,12 @@ private: static inline int mix_alpha(int da, int sa) { - return 255 - ((255 - sa) * (255 - da) >> 8); + return 255 - qt_div_255((255 - sa) * (255 - da)); } static inline uint mix_alpha_rgb64(uint da, uint sa) { - return 65535 - ((65535 - sa) * (65535 - da) >> 16); + return 65535U - qt_div_65535((65535U - sa) * (65535U - da)); } /* @@ -1337,7 +1337,7 @@ static inline void comp_func_Screen_impl(uint *Q_DECL_RESTRICT dest, const uint int da = qAlpha(d); int sa = qAlpha(s); -#define OP(a, b) 255 - (((255-a) * (255-b)) >> 8) +#define OP(a, b) 255 - qt_div_255((255-a) * (255-b)) int r = OP( qRed(d), qRed(s)); int b = OP( qBlue(d), qBlue(s)); int g = OP(qGreen(d), qGreen(s)); @@ -1367,7 +1367,7 @@ static inline void comp_func_Screen_impl(QRgba64 *Q_DECL_RESTRICT dest, const QR uint da = d.alpha(); uint sa = s.alpha(); -#define OP(a, b) 65535 - (((65535-a) * (65535-b)) >> 16) +#define OP(a, b) 65535U - qt_div_65535((65535U-a) * (65535U-b)) uint r = OP( d.red(), s.red()); uint b = OP( d.blue(), s.blue()); uint g = OP(d.green(), s.green()); |