execute move of global headers

see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details

Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a

1 files changed, 226 insertions, 0 deletions

diff --git a/include/basebmp/metafunctions.hxx b/include/basebmp/metafunctions.hxx
new file mode 100644
index 000000000000..e451dce8e4d9
--- /dev/null
+++ b/include/basebmp/metafunctions.hxx
@@ -0,0 +1,226 @@
+/* -*- 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_METAFUNCTIONS_HXX
+#define INCLUDED_BASEBMP_METAFUNCTIONS_HXX
+
+#include <boost/mpl/integral_c.hpp>
+#include <vigra/metaprogramming.hxx>
+#include <vigra/numerictraits.hxx>
+
+#include <functional>
+
+namespace basebmp
+{
+
+// TODO(Q3): move to generic place (o3tl?)
+
+/** template meta function: add const qualifier to 2nd type, if given
+    1st type has it
+*/
+template<typename A, typename B> struct clone_const
+{
+    typedef B type;
+};
+template<typename A, typename B> struct clone_const<const A,B>
+{
+    typedef const B type;
+};
+
+/** template meta function: add const qualifier to plain type (if not
+    already there)
+ */
+template <typename T> struct add_const
+{
+    typedef const T type;
+};
+template <typename T> struct add_const<const T>
+{
+    typedef const T type;
+};
+
+/// template meta function: remove const qualifier from plain type
+template <typename T> struct remove_const
+{
+    typedef T type;
+};
+template <typename T> struct remove_const<const T>
+{
+    typedef T type;
+};
+
+//--------------------------------------------------------------
+
+/// Base class for an adaptable ternary functor
+template< typename A1, typename A2, typename A3, typename R > struct TernaryFunctorBase
+{
+    typedef A1 first_argument_type;
+    typedef A2 second_argument_type;
+    typedef A3 third_argument_type;
+    typedef R  result_type;
+};
+
+//--------------------------------------------------------------
+
+/** template meta function: ensure that given integer type is unsigned
+
+    If given integer type is already unsigned, return as-is -
+    otherwise, convert to unsigned type of same or greater range.
+ */
+template< typename T > struct make_unsigned;
+
+#define BASEBMP_MAKE_UNSIGNED(T,U)        \
+    template<> struct make_unsigned<T> { \
+        typedef U type; \
+    };
+
+BASEBMP_MAKE_UNSIGNED(signed char,unsigned char)
+BASEBMP_MAKE_UNSIGNED(unsigned char,unsigned char)
+BASEBMP_MAKE_UNSIGNED(short,unsigned short)
+BASEBMP_MAKE_UNSIGNED(unsigned short,unsigned short)
+BASEBMP_MAKE_UNSIGNED(int,unsigned int)
+BASEBMP_MAKE_UNSIGNED(unsigned int,unsigned int)
+BASEBMP_MAKE_UNSIGNED(long,unsigned long)
+BASEBMP_MAKE_UNSIGNED(unsigned long,unsigned long)
+
+#undef BASEBMP_MAKE_UNSIGNED
+
+/// cast integer to unsigned type of similar size
+template< typename T > inline typename make_unsigned<T>::type unsigned_cast( T value )
+{
+    return static_cast< typename make_unsigned<T>::type >(value);
+}
+
+//--------------------------------------------------------------
+
+/// returns true, if given number is strictly less than 0
+template< typename T > inline bool is_negative( T x )
+{
+    return x < 0;
+}
+
+/// Overload for ints (branch-free)
+inline bool is_negative( int x )
+{
+    // force logic shift (result for signed shift right is undefined)
+    return static_cast<unsigned int>(x) >> (sizeof(int)*8-1);
+}
+
+//--------------------------------------------------------------
+
+/// Results in VigraTrueType, if T is of integer type and scalar
+template< typename T, typename trueCase, typename falseCase >
+struct ifScalarIntegral
+{
+    typedef
+    typename vigra::If<
+        typename vigra::NumericTraits< T >::isIntegral,
+        typename vigra::If<
+            typename vigra::NumericTraits< T >::isScalar,
+            trueCase,
+            falseCase >::type,
+        falseCase >::type type;
+};
+
+/// Results in VigraTrueType, if T is of non-integer type and scalar
+template< typename T, typename trueCase, typename falseCase >
+struct ifScalarNonIntegral
+{
+    typedef
+    typename vigra::If<
+        typename vigra::NumericTraits< T >::isIntegral,
+        falseCase,
+        typename vigra::If<
+            typename vigra::NumericTraits< T >::isScalar,
+            trueCase,
+            falseCase >::type >::type type;
+};
+
+/// Results in VigraTrueType, if both T1 and T2 are of integer type and scalar
+template< typename T1, typename T2, typename trueCase, typename falseCase >
+struct ifBothScalarIntegral
+{
+    typedef
+    typename ifScalarIntegral<
+        T1,
+        typename ifScalarIntegral<
+            T2,
+            trueCase,
+            falseCase >::type,
+        falseCase >::type type;
+};
+
+//--------------------------------------------------------------
+
+/// Count number of trailing zeros
+template< unsigned int val > struct numberOfTrailingZeros
+{
+    enum { next = val >> 1 };
+    enum { value = vigra::IfBool< (val & 1) == 0,
+                                  numberOfTrailingZeros<next>,
+                                  boost::mpl::integral_c< int,-1 > > ::type::value + 1 };
+};
+
+template<> struct numberOfTrailingZeros<0>
+{
+    enum { value = 0 };
+};
+
+//--------------------------------------------------------------
+
+/// Count number of one bits
+template< unsigned int val > struct bitcount
+{
+    enum { next = val >> 1 };
+    enum { value = bitcount<next>::value + (val & 1) };
+};
+
+template<> struct bitcount<0>
+{
+    enum { value = 0 };
+};
+
+//--------------------------------------------------------------
+
+/// Shift left for positive shift value, and right otherwise
+template< typename T > inline T shiftLeft( T v, int shift )
+{
+    return shift > 0 ? v << shift : v >> (-shift);
+}
+
+/// Shift right for positive shift value, and left otherwise
+template< typename T > inline T shiftRight( T v, int shift )
+{
+    return shift > 0 ? v >> shift : v << (-shift);
+}
+
+//--------------------------------------------------------------
+
+/// Replace non-std project2nd from SGI extensions
+template< typename T1, typename T2 >
+struct project2nd : public std::binary_function<T1, T2, T2>
+{
+    T2 operator() (const T1&, const T2& v) const { return v; }
+};
+
+} // namespace basebmp
+
+#endif /* INCLUDED_BASEBMP_METAFUNCTIONS_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */