BitmapFilter::execute can be const

...after a little tweak to BitmapMosaicFilter

Change-Id: I76b8ffdbf719a9d7960e7f3dafeb3adeb2300ec5
Reviewed-on: https://gerrit.libreoffice.org/60165
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/vcl/BitmapGaussianSeparableBlurFilter.hxx b/include/vcl/BitmapGaussianSeparableBlurFilter.hxx
index c1359dab4761..fde41c935dc6 100644
--- a/include/vcl/BitmapGaussianSeparableBlurFilter.hxx
+++ b/include/vcl/BitmapGaussianSeparableBlurFilter.hxx
@@ -31,14 +31,14 @@ public:
         Separable Blur implementation uses 2x separable 1D convolution
         to process the image.
     */
-    virtual BitmapEx execute(BitmapEx const& rBitmapEx) override;
+    virtual BitmapEx execute(BitmapEx const& rBitmapEx) const override;
 
 private:
     double mfRadius;
 
     bool convolutionPass(Bitmap& rBitmap, Bitmap& aNewBitmap, BitmapReadAccess const* pReadAcc,
                          int aNumberOfContributions, const double* pWeights, int const* pPixels,
-                         const int* pCount);
+                         const int* pCount) const;
 
     static std::vector<double> makeBlurKernel(const double radius, int& rows);
     static void blurContributions(const int aSize, const int aNumberOfContributions,