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Diffstat (limited to 'basebmp/inc/colormisc.hxx')
| -rw-r--r-- | basebmp/inc/colormisc.hxx | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/basebmp/inc/colormisc.hxx b/basebmp/inc/colormisc.hxx deleted file mode 100644 index 5d38b930a1eb..000000000000 --- a/basebmp/inc/colormisc.hxx +++ /dev/null @@ -1,173 +0,0 @@ -/* -*- 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 INCLUDED_BASEBMP_INC_COLORMISC_HXX -#define INCLUDED_BASEBMP_INC_COLORMISC_HXX - -#include <osl/diagnose.h> -#include <basebmp/color.hxx> -#include <colortraits.hxx> -#include <accessortraits.hxx> -#include <vigra/mathutil.hxx> - -// Contents of this header moved out of color.hxx, as it is not useful -// for the general public (drags in vigra and other template -// functionality, that shouldn't be necessary for the ordinary client -// of BitmapDevice etc.) - -namespace basebmp -{ - -template< bool polarity > struct ColorBitmaskOutputMaskFunctor; -template<> struct ColorBitmaskOutputMaskFunctor<true> : MaskFunctorBase<Color,sal_uInt8> -{ - Color operator()( Color v1, sal_uInt8 m, Color v2 ) const - { - OSL_ASSERT(m<=1); - - return Color(v1.toInt32()*(sal_uInt8)(1-m) + v2.toInt32()*m); - } -}; -template<> struct ColorBitmaskOutputMaskFunctor<false> : MaskFunctorBase<Color,sal_uInt8> -{ - Color operator()( Color v1, sal_uInt8 m, Color v2 ) const - { - OSL_ASSERT(m<=1); - - return Color(v1.toInt32()*m + v2.toInt32()*(sal_uInt8)(1-m)); - } -}; - -/// Specialized output mask functor for Color value type -template<bool polarity> struct outputMaskFunctorSelector< Color, sal_uInt8, polarity, FastMask > -{ - typedef ColorBitmaskOutputMaskFunctor<polarity> type; -}; - -template< bool polarity > struct ColorBlendFunctor8 - : public TernaryFunctorBase<sal_uInt8,Color,Color,Color> -{ - Color operator()( sal_uInt8 alpha, - Color v1, - Color v2 ) const - { - alpha = polarity ? alpha : 255 - alpha; - - const sal_uInt8 v1_red( v1.getRed() ); - const sal_uInt8 v1_green( v1.getGreen() ); - const sal_uInt8 v1_blue( v1.getBlue() ); - - // using '>> 8' instead of '/ 0x100' is ill-advised (shifted - // value might be negative). Better rely on decent optimizer - // here... - return Color(((((sal_Int32)v2.getRed() - v1_red)*alpha) / 0x100) + v1_red, - ((((sal_Int32)v2.getGreen() - v1_green)*alpha) / 0x100) + v1_green, - ((((sal_Int32)v2.getBlue() - v1_blue)*alpha) / 0x100) + v1_blue); - } -}; - -template< bool polarity > struct ColorBlendFunctor32 - : public TernaryFunctorBase<Color,Color,Color,Color> -{ - Color operator()( Color input, - Color v1, - Color v2 ) const - { - sal_uInt8 alpha = input.getGreyscale(); - alpha = polarity ? alpha : 255 - alpha; - - const sal_uInt8 v1_red( v1.getRed() ); - const sal_uInt8 v1_green( v1.getGreen() ); - const sal_uInt8 v1_blue( v1.getBlue() ); - - // using '>> 8' instead of '/ 0x100' is ill-advised (shifted - // value might be negative). Better rely on decent optimizer - // here... - return Color(((((sal_Int32)v2.getRed() - v1_red)*alpha) / 0x100) + v1_red, - ((((sal_Int32)v2.getGreen() - v1_green)*alpha) / 0x100) + v1_green, - ((((sal_Int32)v2.getBlue() - v1_blue)*alpha) / 0x100) + v1_blue); - } -}; - - - -template<> struct ColorTraits< Color > -{ - /// Type of a color component (i.e. the type of an individual channel) - typedef sal_uInt8 component_type; - - /// Metafunction to select blend functor from color and alpha type - template< typename AlphaType, bool polarity > struct blend_functor; - - /// Calculate normalized distance between color c1 and c2 - static inline double distance( const Color& c1, - const Color& c2 ) - { - return (c1 - c2).magnitude(); - } - - static inline component_type toGreyscale( const Color& c ) - { - return c.getGreyscale(); - } - - static inline Color fromGreyscale( component_type c ) - { - return Color(c,c,c); - } -}; - -/// The version for plain 8 bit alpha -template<bool polarity> struct ColorTraits< Color >::blend_functor< sal_uInt8, polarity > -{ - typedef ColorBlendFunctor8<polarity> type; -}; - -/// The version taking grey value of a Color -template<bool polarity> struct ColorTraits< Color >::blend_functor< Color, polarity > -{ - typedef ColorBlendFunctor32<polarity> type; -}; - -} // namespace basebmp - -namespace vigra -{ - -template<> -struct NumericTraits<basebmp::Color> -{ - typedef basebmp::Color Type; - typedef basebmp::Color Promote; - typedef basebmp::Color RealPromote; - typedef std::complex<basebmp::Color> ComplexPromote; - typedef sal_uInt8 ValueType; - - typedef VigraTrueType isIntegral; - typedef VigraFalseType isScalar; - typedef VigraTrueType isSigned; - typedef VigraTrueType isOrdered; - typedef VigraFalseType isComplex; -}; - -} // namespace vigra - -#endif /* INCLUDED_BASEBMP_INC_COLORMISC_HXX */ - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |