diff options
| author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2018-04-27 10:37:27 +0200 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2018-05-23 08:31:07 +0000 |
| commit | dfa434a9799618eba48a84cbad279262679aa108 (patch) | |
| tree | 5d0e5bb32305c10e6487086683fb476c6c1e15e1 /src/gui/painting/qrgba64.h | |
| parent | 5e67c653db2aecb332f9f3d93da7c4fdd8a4ad35 (diff) | |
Optimize unpremultiply using SSE rcp
Change-Id: I255031d354b0fde7abe8366ea2c86a35f9f24afd
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/gui/painting/qrgba64.h')
| -rw-r--r-- | src/gui/painting/qrgba64.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/painting/qrgba64.h b/src/gui/painting/qrgba64.h index 2c8f8fa8c4..0e5344cacb 100644 --- a/src/gui/painting/qrgba64.h +++ b/src/gui/painting/qrgba64.h @@ -127,6 +127,10 @@ public: Q_DECL_RELAXED_CONSTEXPR QRgba64 premultiplied() const { + if (isOpaque()) + return *this; + if (isTransparent()) + return QRgba64::fromRgba64(0); const quint32 a = alpha(); const quint16 r = div_65535(red() * a); const quint16 g = div_65535(green() * a); |