diff options
author | Allan Sandfeld Jensen <allan.jensen@digia.com> | 2014-02-14 10:39:30 +0100 |
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committer | Allan Sandfeld Jensen <allan.jensen@digia.com> | 2014-09-17 14:48:48 +0200 |
commit | d84a6eab5129ba29951a7ba6d82820b21cc9872e (patch) | |
tree | 1d794ecd3f37363a286f3eeda8e571c36ec4006c /src/gui/kernel/qpixelformat.h | |
parent | bce19cb9063003af5924c643f6fc1416146b4242 (diff) |
Add Grayscale8 and Alpha8 formats to QImage and drawing
Extend the QImage format with two 8-bit grayscale and alpha formats.
These formats have the advantage over Indexed8 that they have simpler
conversion and can be rendered to by the raster engine.
[ChangeLog][QtGui][QImage] Added support grayscale and alpha 8-bit
formats which can also be rendered to.
Change-Id: I4343c80a92a3dda196aa38d0c3ea251b094fc274
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Diffstat (limited to 'src/gui/kernel/qpixelformat.h')
-rw-r--r-- | src/gui/kernel/qpixelformat.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/gui/kernel/qpixelformat.h b/src/gui/kernel/qpixelformat.h index 60bfbed824..a9dcda2a1e 100644 --- a/src/gui/kernel/qpixelformat.h +++ b/src/gui/kernel/qpixelformat.h @@ -111,7 +111,8 @@ public: CMYK, HSL, HSV, - YUV + YUV, + Alpha }; enum AlphaUsage { @@ -312,6 +313,22 @@ Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatGrayscale(uchar channelSize, typeInt); } +Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatAlpha(uchar channelSize, + QPixelFormat::TypeInterpretation typeInt=QPixelFormat::UnsignedInteger) Q_DECL_NOTHROW +{ + return QPixelFormat(QPixelFormat::Alpha, + 0, + 0, + 0, + 0, + 0, + channelSize, + QPixelFormat::UsesAlpha, + QPixelFormat::AtBeginning, + QPixelFormat::NotPremultiplied, + typeInt); +} + Q_DECL_CONSTEXPR inline QPixelFormat qPixelFormatCmyk(uchar channelSize, uchar alfa=0, QPixelFormat::AlphaUsage usage=QPixelFormat::IgnoresAlpha, |