diff options
| author | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2013-05-15 11:07:40 +0200 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-05-20 12:06:48 +0200 |
| commit | f66af39933087ec5d65bf9a0d770a10f676b9cd0 (patch) | |
| tree | 949aed5c55be184068866028efe70ec6d133e4fb /src/gui/painting | |
| parent | e63b831bbdee89decbe8c2f06110e8ac56ef9e2b (diff) | |
Make QRgb-related functions constexpr
Change-Id: I44b2b60e89a3312889101d7e5c305f4f7c18f7ae
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qrgb.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/gui/painting/qrgb.h b/src/gui/painting/qrgb.h index d7a01840e8..3c2bc5b97a 100644 --- a/src/gui/painting/qrgb.h +++ b/src/gui/painting/qrgb.h @@ -52,31 +52,31 @@ typedef unsigned int QRgb; // RGB triplet // non-namespaced Qt global variable const Q_DECL_UNUSED QRgb RGB_MASK = 0x00ffffff; // masks RGB values -inline int qRed(QRgb rgb) // get red part of RGB +inline Q_DECL_CONSTEXPR int qRed(QRgb rgb) // get red part of RGB { return ((rgb >> 16) & 0xff); } -inline int qGreen(QRgb rgb) // get green part of RGB +inline Q_DECL_CONSTEXPR int qGreen(QRgb rgb) // get green part of RGB { return ((rgb >> 8) & 0xff); } -inline int qBlue(QRgb rgb) // get blue part of RGB +inline Q_DECL_CONSTEXPR int qBlue(QRgb rgb) // get blue part of RGB { return (rgb & 0xff); } -inline int qAlpha(QRgb rgb) // get alpha part of RGBA +inline Q_DECL_CONSTEXPR int qAlpha(QRgb rgb) // get alpha part of RGBA { return rgb >> 24; } -inline QRgb qRgb(int r, int g, int b)// set RGB value +inline Q_DECL_CONSTEXPR QRgb qRgb(int r, int g, int b)// set RGB value { return (0xffu << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); } -inline QRgb qRgba(int r, int g, int b, int a)// set RGBA value +inline Q_DECL_CONSTEXPR QRgb qRgba(int r, int g, int b, int a)// set RGBA value { return ((a & 0xff) << 24) | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff); } -inline int qGray(int r, int g, int b)// convert R,G,B to gray 0..255 +inline Q_DECL_CONSTEXPR int qGray(int r, int g, int b)// convert R,G,B to gray 0..255 { return (r*11+g*16+b*5)/32; } -inline int qGray(QRgb rgb) // convert RGB to gray 0..255 +inline Q_DECL_CONSTEXPR int qGray(QRgb rgb) // convert RGB to gray 0..255 { return qGray(qRed(rgb), qGreen(rgb), qBlue(rgb)); } -inline bool qIsGray(QRgb rgb) +inline Q_DECL_CONSTEXPR bool qIsGray(QRgb rgb) { return qRed(rgb) == qGreen(rgb) && qRed(rgb) == qBlue(rgb); } QT_END_NAMESPACE |