b9337e22ce
see https://gerrit.libreoffice.org/#/c/3367/ and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a
139 lines
5 KiB
C++
139 lines
5 KiB
C++
/* -*- 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_PACKEDPIXELFORMATS_HXX
|
|
#define INCLUDED_BASEBMP_PACKEDPIXELFORMATS_HXX
|
|
|
|
#include <basebmp/color.hxx>
|
|
#include <basebmp/colortraits.hxx>
|
|
#include <basebmp/accessor.hxx>
|
|
#include <basebmp/pixeliterator.hxx>
|
|
#include <basebmp/packedpixeliterator.hxx>
|
|
#include <basebmp/pixelformatadapters.hxx>
|
|
#include <basebmp/paletteimageaccessor.hxx>
|
|
#include <basebmp/metafunctions.hxx>
|
|
|
|
#include <vigra/numerictraits.hxx>
|
|
#include <vigra/metaprogramming.hxx>
|
|
|
|
namespace basebmp
|
|
{
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
/** Lookup index value for given color value in a PaletteImageAccessor
|
|
*/
|
|
template< class Accessor > struct ColorLookup
|
|
{
|
|
typename Accessor::data_type operator()( const Accessor& acc,
|
|
typename Accessor::value_type v ) const
|
|
{
|
|
return acc.lookup(v);
|
|
}
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// partial specialization of AccessorTraits for PaletteAccessor
|
|
template< class Accessor, typename ColorType > struct AccessorTraits<
|
|
PaletteImageAccessor< Accessor, ColorType > >
|
|
{
|
|
/// value type of described accessor
|
|
typedef typename PaletteImageAccessor< Accessor, ColorType >::value_type value_type;
|
|
|
|
/// Retrieve stand-alone color lookup function for given Accessor type
|
|
typedef ColorLookup< PaletteImageAccessor< Accessor, ColorType > > color_lookup;
|
|
|
|
/// Retrieve raw pixel data accessor for given Accessor type
|
|
typedef Accessor raw_accessor;
|
|
|
|
/** accessor for XOR setter access is disabled, since the results
|
|
* are usually completely unintended - you'll usually want to
|
|
* wrap an xor_accessor with a PaletteAccessor, not the other way
|
|
* around.
|
|
*/
|
|
typedef vigra::VigraFalseType xor_accessor;
|
|
|
|
/** accessor for masked setter access is disabled, since the
|
|
* results are usually completely unintended - you'll usually
|
|
* want to wrap a masked_accessor with a PaletteAccessor, not the
|
|
* other way around.
|
|
*/
|
|
template< class MaskAccessor,
|
|
class Iterator,
|
|
class MaskIterator > struct masked_accessor
|
|
{
|
|
typedef vigra::VigraFalseType type;
|
|
};
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< typename ColorType > struct PaletteAccessorSelector
|
|
{
|
|
template< class Accessor > struct wrap_accessor
|
|
{
|
|
typedef PaletteImageAccessor< Accessor, ColorType > type;
|
|
};
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
template< class Iterator,
|
|
class Accessor > struct PixelFormatTraitsTemplate_Palette
|
|
{
|
|
typedef typename Iterator::value_type pixel_type;
|
|
typedef Iterator iterator_type;
|
|
typedef Accessor raw_accessor_type;
|
|
typedef PaletteAccessorSelector<Color> accessor_selector;
|
|
};
|
|
|
|
template< int BitsPerPixel,
|
|
bool MsbFirst > struct PixelFormatTraitsTemplate_PackedPalette :
|
|
public PixelFormatTraitsTemplate_Palette<
|
|
PackedPixelIterator< sal_uInt8,
|
|
BitsPerPixel,
|
|
MsbFirst >,
|
|
NonStandardAccessor< sal_uInt8 > >
|
|
{};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// 1bpp MSB
|
|
typedef PixelFormatTraitsTemplate_PackedPalette<1, true> PixelFormatTraits_PAL1_MSB;
|
|
|
|
// 1bpp LSB
|
|
typedef PixelFormatTraitsTemplate_PackedPalette<1, false> PixelFormatTraits_PAL1_LSB;
|
|
|
|
// 4bpp MSB
|
|
typedef PixelFormatTraitsTemplate_PackedPalette<4, true> PixelFormatTraits_PAL4_MSB;
|
|
|
|
// 4bpp LSB
|
|
typedef PixelFormatTraitsTemplate_PackedPalette<4, false> PixelFormatTraits_PAL4_LSB;
|
|
|
|
// 8bpp
|
|
typedef PixelFormatTraitsTemplate_Palette<
|
|
PixelIterator< sal_uInt8 >,
|
|
StandardAccessor< sal_uInt8 > > PixelFormatTraits_PAL8;
|
|
|
|
} // namespace basebmp
|
|
|
|
#endif /* INCLUDED_BASEBMP_PACKEDPIXELFORMATS_HXX */
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|