LibreOffice Module vcl (master)  1
BitmapScaleConvolutionFilter.hxx
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19 
20 #ifndef VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
21 #define VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
22 
23 #include <vcl/BitmapFilter.hxx>
24 
25 #include "ResampleKernel.hxx"
26 
27 namespace vcl
28 {
30 {
31 protected:
32  BitmapScaleConvolutionFilter(const double& rScaleX, const double& rScaleY, std::unique_ptr<Kernel> pKernel)
33  : mxKernel(std::move(pKernel))
34  , mrScaleX(rScaleX)
35  , mrScaleY(rScaleY)
36  {
37  }
38 
39  virtual BitmapEx execute(BitmapEx const& rBitmap) const override;
40 
41 private:
42  std::unique_ptr<Kernel> mxKernel;
43  double const mrScaleX;
44  double const mrScaleY;
45 };
46 
48 {
49 public:
50  BitmapScaleBilinearFilter(const double& rScaleX, const double& rScaleY)
51  : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BilinearKernel>())
52  {
53  }
54 };
55 
57 {
58 public:
59  BitmapScaleBicubicFilter(const double& rScaleX, const double& rScaleY)
60  : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BicubicKernel>())
61  {
62  }
63 };
64 
66 {
67 public:
68  BitmapScaleLanczos3Filter(const double& rScaleX, const double& rScaleY)
69  : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<Lanczos3Kernel>())
70  {
71  }
72 };
73 
74 }
75 
76 #endif // VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
77 
78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
BitmapScaleBicubicFilter(const double &rScaleX, const double &rScaleY)
#define VCL_DLLPUBLIC
Definition: dllapi.h:29
BitmapScaleLanczos3Filter(const double &rScaleX, const double &rScaleY)
BitmapScaleBilinearFilter(const double &rScaleX, const double &rScaleY)
BitmapScaleConvolutionFilter(const double &rScaleX, const double &rScaleY, std::unique_ptr< Kernel > pKernel)