Added thirdparty: boost library

thirdparty/include/boost/gil/io/read_image_info.hpp

@@ -0,0 +1,110 @@
+//
+// Copyright 2007-2012 Christian Henning, Andreas Pokorny, Lubomir Bourdev
+//
+// Distributed under 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_IO_READ_IMAGE_INFO_HPP
+#define BOOST_GIL_IO_READ_IMAGE_INFO_HPP
+
+#include <boost/gil/io/base.hpp>
+#include <boost/gil/io/device.hpp>
+#include <boost/gil/io/get_reader.hpp>
+#include <boost/gil/io/path_spec.hpp>
+#include <boost/gil/detail/mp11.hpp>
+
+#include <type_traits>
+
+namespace boost{ namespace gil {
+
+/// \ingroup IO
+
+/// \brief Returns the image format backend. Backend is format specific.
+/// \param file      It's a device. Must satisfy is_adaptable_input_device metafunction.
+/// \param settings  Specifies read settings depending on the image format.
+/// \return image_read_info object dependent on the image format.
+/// \throw std::ios_base::failure
+template <typename Device, typename FormatTag>
+inline
+auto read_image_info(Device& file, image_read_settings<FormatTag> const& settings,
+    typename std::enable_if
+    <
+        mp11::mp_and
+        <
+            detail::is_adaptable_input_device<FormatTag, Device>,
+            is_format_tag<FormatTag>
+        >::value
+    >::type* /*dummy*/ = nullptr)
+    -> typename get_reader_backend<Device, FormatTag>::type
+{
+    return make_reader_backend(file, settings);
+}
+
+/// \brief Returns the image format backend. Backend is format specific.
+/// \param file It's a device. Must satisfy is_adaptable_input_device metafunction.
+/// \param tag  Defines the image format. Must satisfy is_format_tag metafunction.
+/// \return image_read_info object dependent on the image format.
+/// \throw std::ios_base::failure
+template <typename Device, typename FormatTag>
+inline
+auto read_image_info(Device& file, FormatTag const&,
+    typename std::enable_if
+    <
+        mp11::mp_and
+        <
+            detail::is_adaptable_input_device<FormatTag, Device>,
+            is_format_tag<FormatTag>
+        >::value
+    >::type* /*dummy*/ = nullptr)
+    -> typename get_reader_backend<Device, FormatTag>::type
+{
+    return read_image_info(file, image_read_settings<FormatTag>());
+}
+
+/// \brief Returns the image format backend. Backend is format specific.
+/// \param file_name File name. Must satisfy is_supported_path_spec metafunction.
+/// \param settings  Specifies read settings depending on the image format.
+/// \return image_read_info object dependent on the image format.
+/// \throw std::ios_base::failure
+template <typename String, typename FormatTag>
+inline
+auto read_image_info(
+    String const& file_name, image_read_settings<FormatTag> const& settings,
+    typename std::enable_if
+    <
+        mp11::mp_and
+        <
+            is_format_tag<FormatTag>,
+            detail::is_supported_path_spec<String>
+        >::value
+    >::type* /*dummy*/ = nullptr)
+    -> typename get_reader_backend<String, FormatTag>::type
+{
+    return make_reader_backend(file_name, settings);
+}
+
+/// \brief Returns the image format backend. Backend is format specific.
+/// \param file_name File name. Must satisfy is_supported_path_spec metafunction.
+/// \param tag       Defines the image format. Must satisfy is_format_tag metafunction.
+/// \return image_read_info object dependent on the image format.
+/// \throw std::ios_base::failure
+template <typename String, typename FormatTag>
+inline
+auto read_image_info(String const& file_name, FormatTag const&,
+    typename std::enable_if
+    <
+        mp11::mp_and
+        <
+            is_format_tag<FormatTag>,
+            detail::is_supported_path_spec<String>
+        >::value
+    >::type* /*dummy*/ = nullptr)
+    -> typename get_reader_backend<String, FormatTag>::type
+{
+    return read_image_info(file_name, image_read_settings<FormatTag>());
+}
+
+}} // namespace boost::gil
+
+#endif