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Diffstat (limited to '')
-rw-r--r-- | vcl/inc/bitmap/BitmapScaleConvolutionFilter.hxx | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/vcl/inc/bitmap/BitmapScaleConvolutionFilter.hxx b/vcl/inc/bitmap/BitmapScaleConvolutionFilter.hxx new file mode 100644 index 000000000..1c9bb8e33 --- /dev/null +++ b/vcl/inc/bitmap/BitmapScaleConvolutionFilter.hxx @@ -0,0 +1,78 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef VCL_INC_BITMAP_BITMAPSCALECONVOLUTIONFILTER_HXX +#define VCL_INC_BITMAP_BITMAPSCALECONVOLUTIONFILTER_HXX + +#include <vcl/BitmapFilter.hxx> + +#include <ResampleKernel.hxx> + +namespace vcl +{ +class BitmapScaleConvolutionFilter : public BitmapFilter +{ +protected: + BitmapScaleConvolutionFilter(const double& rScaleX, const double& rScaleY, + std::unique_ptr<Kernel> pKernel) + : mxKernel(std::move(pKernel)) + , mrScaleX(rScaleX) + , mrScaleY(rScaleY) + { + } + + virtual BitmapEx execute(BitmapEx const& rBitmap) const override; + +private: + std::unique_ptr<Kernel> mxKernel; + double mrScaleX; + double mrScaleY; +}; + +class VCL_DLLPUBLIC BitmapScaleBilinearFilter final : public BitmapScaleConvolutionFilter +{ +public: + BitmapScaleBilinearFilter(const double& rScaleX, const double& rScaleY) + : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BilinearKernel>()) + { + } +}; + +class VCL_DLLPUBLIC BitmapScaleBicubicFilter final : public BitmapScaleConvolutionFilter +{ +public: + BitmapScaleBicubicFilter(const double& rScaleX, const double& rScaleY) + : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BicubicKernel>()) + { + } +}; + +class VCL_DLLPUBLIC BitmapScaleLanczos3Filter final : public BitmapScaleConvolutionFilter +{ +public: + BitmapScaleLanczos3Filter(const double& rScaleX, const double& rScaleY) + : BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<Lanczos3Kernel>()) + { + } +}; +} + +#endif // VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |