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| author | Liang Qi <liang.qi@qt.io> | 2016-08-29 08:13:40 +0200 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2016-08-29 08:13:40 +0200 |
| commit | cc74452d6d259d36ac47c536f11a5efb269e8e44 (patch) | |
| tree | e43ac89e9edde354d12fbddffcbb6e40108cc643 /src/gui/painting/qdrawhelper_p.h | |
| parent | 6cbd982836266a59e926d8f149ad0013bd8162a3 (diff) | |
| parent | e52fcb7dc78c83586c813f55f087a98bae4eaa0e (diff) | |
Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
configure
src/plugins/platforms/winrt/qwinrtclipboard.cpp
Change-Id: Ic6d58be3d1ed2bb507f2ba06c82361afd9f9ddb9
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index 21af6039f8..fa3e6396ec 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -760,6 +760,7 @@ static Q_ALWAYS_INLINE uint BYTE_MUL_RGB16_32(uint x, uint a) { return t; } +// qt_div_255 is a fast rounded division by 255 using an approximation that is accurate for all positive 16-bit integers static Q_DECL_CONSTEXPR Q_ALWAYS_INLINE int qt_div_255(int x) { return (x + (x>>8) + 0x80) >> 8; } static Q_DECL_CONSTEXPR Q_ALWAYS_INLINE uint qt_div_65535(uint x) { return (x + (x>>16) + 0x8000U) >> 16; } |