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Diffstat (limited to 'include/vcl/BitmapColorQuantizationFilter.hxx')
-rw-r--r-- | include/vcl/BitmapColorQuantizationFilter.hxx | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/vcl/BitmapColorQuantizationFilter.hxx b/include/vcl/BitmapColorQuantizationFilter.hxx new file mode 100644 index 000000000..266a384a3 --- /dev/null +++ b/include/vcl/BitmapColorQuantizationFilter.hxx @@ -0,0 +1,43 @@ +/* -*- 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/. + * + */ + +#ifndef INCLUDED_INCLUDE_VCL_BITMAPCOLORQUANTIZATIONFILTER_HXX +#define INCLUDED_INCLUDE_VCL_BITMAPCOLORQUANTIZATIONFILTER_HXX + +#include <vcl/BitmapFilter.hxx> + +class VCL_DLLPUBLIC BitmapColorQuantizationFilter final : public BitmapFilter +{ +public: + /** Reduce number of colors for the bitmap using the POPULAR algorithm + + @param nNewColorCount + Maximal number of bitmap colors after the reduce operation + */ + BitmapColorQuantizationFilter(sal_uInt16 nNewColorCount) + : mnNewColorCount(nNewColorCount) + { + } + + virtual BitmapEx execute(BitmapEx const& rBitmapEx) const override; + +private: + sal_uInt16 mnNewColorCount; + + struct PopularColorCount + { + sal_uInt32 mnIndex; + sal_uInt32 mnCount; + }; +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |