WIP. Scale cover art option. Seems to work

2014-06-14 20:44:03 +02:00
parent 1d67a548c9
commit 9bada5ee2a
92 changed files with 15866 additions and 1890 deletions
@@ -0,0 +1,111 @@
+/*
+    Copyright 2007-2008 Christian Henning, Andreas Pokorny, Lubomir Bourdev
+    Use, modification and distribution are subject to the Boost Software License,
+    Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt).
+*/
+
+/*************************************************************************************************/
+
+#ifndef BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP
+#define BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP
+
+////////////////////////////////////////////////////////////////////////////////////////
+/// \file
+/// \brief
+/// \author Christian Henning, Andreas Pokorny, Lubomir Bourdev \n
+///
+/// \date   2007-2008 \n
+///
+////////////////////////////////////////////////////////////////////////////////////////
+
+#include <ostream>
+#include <istream>
+#include <vector>
+
+#include <boost/array.hpp>
+#include <boost/bind.hpp>
+#include <boost/type_traits/is_base_of.hpp>
+
+#include <boost/gil/utilities.hpp>
+#include <boost/gil/color_convert.hpp>
+#include <boost/gil/bit_aligned_pixel_reference.hpp>
+#include <boost/gil/bit_aligned_pixel_iterator.hpp>
+
+#include <boost/gil/extension/toolbox/gil_extensions.hpp>
+
+#include "typedefs.hpp"
+#include "io_error.hpp"
+
+namespace boost { namespace gil {
+
+struct format_tag {};
+
+template< typename Property > 
+struct property_base
+{
+    typedef Property type;
+};
+
+template<typename FormatTag> struct is_format_tag : is_base_and_derived< format_tag
+                                                                       , FormatTag
+                                                                       > {};
+
+struct image_read_settings_base
+{
+protected:
+
+    image_read_settings_base()
+    : _top_left( 0, 0 )
+    , _dim     ( 0, 0 )
+    {}
+
+    image_read_settings_base( const point_t& top_left
+                            , const point_t& dim
+                            )
+    : _top_left( top_left )
+    , _dim     ( dim      )
+    {}
+
+public:
+
+    point_t _top_left;
+    point_t _dim;
+};
+
+/**
+ * Boolean meta function, mpl::true_ if the pixel type \a PixelType is supported 
+ * by the image format identified with \a FormatTag.
+ * \todo the name is_supported is to generic, pick something more IO realted.
+ */
+// Depending on image type the parameter Pixel can be a reference type 
+// for bit_aligned images or a pixel for byte images.
+template< typename Pixel, typename FormatTag > struct is_read_supported {};
+template< typename Pixel, typename FormatTag > struct is_write_supported {};
+
+
+namespace detail {
+
+template< typename Property > 
+struct property_base
+{
+    typedef Property type;
+};
+
+struct read_support_true  { BOOST_STATIC_CONSTANT( bool, is_supported = true );  };
+struct read_support_false { BOOST_STATIC_CONSTANT( bool, is_supported = false ); };
+struct write_support_true { BOOST_STATIC_CONSTANT( bool, is_supported = true );  };
+struct write_support_false{ BOOST_STATIC_CONSTANT( bool, is_supported = false ); };
+
+class no_log {};
+
+} // namespace detail
+
+template<typename FormatTag> struct image_read_info;
+template<typename FormatTag> struct image_read_settings;
+template<typename FormatTag, typename Log = typename detail::no_log > struct image_write_info;
+
+} // namespace gil
+} // namespace boost
+
+#endif // BOOST_GIL_EXTENSION_IO_DETAIL_BASE_HPP