LCOV - code coverage report
Current view: top level - basebmp/inc/basebmp - paletteformats.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 2 2 100.0 %
Date: 2012-08-25 Functions: 1 2 50.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef INCLUDED_BASEBMP_PACKEDPIXELFORMATS_HXX
      21                 :            : #define INCLUDED_BASEBMP_PACKEDPIXELFORMATS_HXX
      22                 :            : 
      23                 :            : #include <basebmp/color.hxx>
      24                 :            : #include <basebmp/colortraits.hxx>
      25                 :            : #include <basebmp/accessor.hxx>
      26                 :            : #include <basebmp/pixeliterator.hxx>
      27                 :            : #include <basebmp/packedpixeliterator.hxx>
      28                 :            : #include <basebmp/pixelformatadapters.hxx>
      29                 :            : #include <basebmp/paletteimageaccessor.hxx>
      30                 :            : #include <basebmp/metafunctions.hxx>
      31                 :            : 
      32                 :            : #include <vigra/numerictraits.hxx>
      33                 :            : #include <vigra/metaprogramming.hxx>
      34                 :            : 
      35                 :            : namespace basebmp
      36                 :            : {
      37                 :            : 
      38                 :            : //-----------------------------------------------------------------------------
      39                 :            : 
      40                 :            : /** Lookup index value for given color value in a PaletteImageAccessor
      41                 :            :  */
      42                 :            : template< class Accessor > struct ColorLookup
      43                 :            : {
      44                 :      23242 :     typename Accessor::data_type operator()( const Accessor&               acc,
      45                 :            :                                              typename Accessor::value_type v ) const
      46                 :            :     {
      47                 :      23242 :         return acc.lookup(v);
      48                 :            :     }
      49                 :            : };
      50                 :            : 
      51                 :            : //-----------------------------------------------------------------------------
      52                 :            : 
      53                 :            : // partial specialization of AccessorTraits for PaletteAccessor
      54                 :            : template< class Accessor, typename ColorType > struct AccessorTraits<
      55                 :            :     PaletteImageAccessor< Accessor, ColorType > >
      56                 :            : {
      57                 :            :     /// value type of described accessor
      58                 :            :     typedef typename PaletteImageAccessor< Accessor, ColorType >::value_type  value_type;
      59                 :            : 
      60                 :            :     /// Retrieve stand-alone color lookup function for given Accessor type
      61                 :            :     typedef ColorLookup< PaletteImageAccessor< Accessor, ColorType > >        color_lookup;
      62                 :            : 
      63                 :            :     /// Retrieve raw pixel data accessor for given Accessor type
      64                 :            :     typedef Accessor                                                          raw_accessor;
      65                 :            : 
      66                 :            :     /** accessor for XOR setter access is disabled, since the results
      67                 :            :      *  are usually completely unintended - you'll usually want to
      68                 :            :      *  wrap an xor_accessor with a PaletteAccessor, not the other way
      69                 :            :      *  around.
      70                 :            :      */
      71                 :            :     typedef vigra::VigraFalseType                                             xor_accessor;
      72                 :            : 
      73                 :            :     /** accessor for masked setter access is disabled, since the
      74                 :            :      *  results are usually completely unintended - you'll usually
      75                 :            :      *  want to wrap a masked_accessor with a PaletteAccessor, not the
      76                 :            :      *  other way around.
      77                 :            :      */
      78                 :            :     template< class MaskAccessor,
      79                 :            :               class Iterator,
      80                 :            :               class MaskIterator > struct                                     masked_accessor
      81                 :            :     {
      82                 :            :         typedef vigra::VigraFalseType type;
      83                 :            :     };
      84                 :            : };
      85                 :            : 
      86                 :            : //-----------------------------------------------------------------------------
      87                 :            : 
      88                 :            : template< typename ColorType > struct PaletteAccessorSelector
      89                 :            : {
      90                 :            :     template< class Accessor > struct wrap_accessor
      91                 :            :     {
      92                 :            :         typedef PaletteImageAccessor< Accessor, ColorType > type;
      93                 :            :     };
      94                 :            : };
      95                 :            : 
      96                 :            : //-----------------------------------------------------------------------------
      97                 :            : 
      98                 :            : template< class Iterator,
      99                 :            :           class Accessor > struct PixelFormatTraitsTemplate_Palette
     100                 :            : {
     101                 :            :     typedef typename Iterator::value_type       pixel_type;
     102                 :            :     typedef Iterator                            iterator_type;
     103                 :            :     typedef Accessor                            raw_accessor_type;
     104                 :            :     typedef PaletteAccessorSelector<Color>      accessor_selector;
     105                 :            : };
     106                 :            : 
     107                 :            : template< int BitsPerPixel,
     108                 :            :           bool MsbFirst > struct PixelFormatTraitsTemplate_PackedPalette :
     109                 :            :     public PixelFormatTraitsTemplate_Palette<
     110                 :            :                PackedPixelIterator< sal_uInt8,
     111                 :            :                                     BitsPerPixel,
     112                 :            :                                     MsbFirst >,
     113                 :            :                NonStandardAccessor< sal_uInt8 > >
     114                 :            : {};
     115                 :            : 
     116                 :            : //-----------------------------------------------------------------------------
     117                 :            : 
     118                 :            : // 1bpp MSB
     119                 :            : typedef PixelFormatTraitsTemplate_PackedPalette<1, true>  PixelFormatTraits_PAL1_MSB;
     120                 :            : 
     121                 :            : // 1bpp LSB
     122                 :            : typedef PixelFormatTraitsTemplate_PackedPalette<1, false> PixelFormatTraits_PAL1_LSB;
     123                 :            : 
     124                 :            : // 4bpp MSB
     125                 :            : typedef PixelFormatTraitsTemplate_PackedPalette<4, true>  PixelFormatTraits_PAL4_MSB;
     126                 :            : 
     127                 :            : // 4bpp LSB
     128                 :            : typedef PixelFormatTraitsTemplate_PackedPalette<4, false> PixelFormatTraits_PAL4_LSB;
     129                 :            : 
     130                 :            : // 8bpp
     131                 :            : typedef PixelFormatTraitsTemplate_Palette<
     132                 :            :     PixelIterator< sal_uInt8 >,
     133                 :            :     StandardAccessor< sal_uInt8 > >                       PixelFormatTraits_PAL8;
     134                 :            : 
     135                 :            : } // namespace basebmp
     136                 :            : 
     137                 :            : #endif /* INCLUDED_BASEBMP_PACKEDPIXELFORMATS_HXX */
     138                 :            : 
     139                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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