#include <BitmapFilterStackBlur.hxx>
Public Member Functions | |
| BitmapFilterStackBlur (sal_Int32 nRadius) | |
| Implementation of stack blur - a fast Gaussian blur approximation. More... | |
| virtual | ~BitmapFilterStackBlur () |
| virtual BitmapEx | execute (BitmapEx const &rBitmap) const override |
| Bitmap | filter (Bitmap const &rBitmap) const |
 Public Member Functions inherited from BitmapFilter | |
| BitmapFilter () | |
| virtual | ~BitmapFilter () |
| virtual BitmapEx | execute (BitmapEx const &rBitmapEx) const =0 |
Private Attributes | |
| sal_Int32 | mnRadius |
Additional Inherited Members | |
| Static Public Member Functions inherited from BitmapFilter | |
| static bool | Filter (BitmapEx &rBmpEx, BitmapFilter const &rFilter) |
| static bool | Filter (Animation &rBmpEx, BitmapFilter const &rFilter) |
Detailed Description
Definition at line 18 of file BitmapFilterStackBlur.hxx.
Constructor & Destructor Documentation
◆ BitmapFilterStackBlur()
| BitmapFilterStackBlur::BitmapFilterStackBlur | ( | sal_Int32 | nRadius | ) |
Implementation of stack blur - a fast Gaussian blur approximation.
nRadius - blur radius, valid values are between 2 and 254 bExtend - extend the bitmap in all directions by the radius
Stack Blur Algorithm by Mario Klingemann mario.nosp@m.@qua.nosp@m.simon.nosp@m.do.c.nosp@m.om (http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html)
Additionally references and implementations:
- Blur.js by Jacob Kelley (http://www.blurjs.com)
- BlurEffectForAndroidDesign by Nicolas Pomepuy (https://github.com/PomepuyN/BlurEffectForAndroidDesign)
- StackBluriOS by Thomas Landspurg (https://github.com/tomsoft1/StackBluriOS)
- stackblur.cpp by Benjamin Yates (https://gist.github.com/benjamin9999/3809142)
- stack blur in fog 2D graphic library by Petr Kobalicek (https://code.google.com/p/fog/)
Definition at line 613 of file BitmapFilterStackBlur.cxx.
◆ ~BitmapFilterStackBlur()
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virtual |
Definition at line 618 of file BitmapFilterStackBlur.cxx.
Member Function Documentation
◆ execute()
Implements BitmapFilter.
Definition at line 620 of file BitmapFilterStackBlur.cxx.
References filter(), BitmapEx::GetAlphaMask(), BitmapEx::GetBitmap(), and result.
◆ filter()
Definition at line 627 of file BitmapFilterStackBlur.cxx.
References BitmapInfoAccess::GetScanlineFormat(), mnRadius, N24BitTcBgr, N24BitTcRgb, N32BitTcBgra, N32BitTcMask, N8BitPal, and NONE.
Referenced by execute().
Member Data Documentation
◆ mnRadius
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private |
Definition at line 20 of file BitmapFilterStackBlur.hxx.
Referenced by filter().
The documentation for this class was generated from the following files:
