Fixed abs function for half based types

glm/core/func_common.inl

@@ -60,19 +60,19 @@ namespace detail
 
 	// abs
 	template <typename genFIType>
-    GLM_FUNC_QUALIFIER genFIType abs
+	GLM_FUNC_QUALIFIER genFIType abs
 	(
 		genFIType const & x
 	)
-    {
+	{
 		return detail::Abs_<genFIType, std::numeric_limits<genFIType>::is_signed>::get(x);
-    }
+	}
 
 	VECTORIZE_VEC(abs)
 
-    // sign
+	// sign
 	//Try something like based on x >> 31 to get the sign bit
-    template <typename genFIType> 
+	template <typename genFIType> 
 	GLM_FUNC_QUALIFIER genFIType sign
 	(
 		genFIType const & x
@@ -84,40 +84,40 @@ namespace detail
 
 		genFIType result;
 		if(x > genFIType(0))
-            result = genFIType(1);
-        else if(x < genFIType(0))
-            result = genFIType(-1);
-        else
-            result = genFIType(0);
-        return result;
+			result = genFIType(1);
+		else if(x < genFIType(0))
+			result = genFIType(-1);
+		else
+			result = genFIType(0);
+		return result;
 	}
 	
 	VECTORIZE_VEC(sign)
 
-    // floor
-    template <>
+	// floor
+	template <>
 	GLM_FUNC_QUALIFIER detail::half floor<detail::half>(detail::half const & x)
-    {
-        return detail::half(::std::floor(float(x)));
-    }
+	{
+		return detail::half(::std::floor(float(x)));
+	}
 
-    template <typename genType>
-    GLM_FUNC_QUALIFIER genType floor(genType const & x)
-    {
+	template <typename genType>
+	GLM_FUNC_QUALIFIER genType floor(genType const & x)
+	{
 		GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'floor' only accept floating-point inputs");
 
-        return ::std::floor(x);
-    }
+		return ::std::floor(x);
+	}
 
 	VECTORIZE_VEC(floor)
 
-    // trunc
-    template <typename genType>
-    GLM_FUNC_QUALIFIER genType trunc(genType const & x)
-    {
+	// trunc
+	template <typename genType>
+	GLM_FUNC_QUALIFIER genType trunc(genType const & x)
+	{
 		GLM_STATIC_ASSERT(detail::type<genType>::is_float, "'trunc' only accept floating-point inputs");
-        return x < 0 ? -floor(-x) : floor(x);
-    }
+		return x < 0 ? -floor(-x) : floor(x);
+	}
 
 	VECTORIZE_VEC(trunc)
 

glm/gtc/half_float.hpp

@@ -22,7 +22,7 @@
 ///
 /// @ref gtc_half_float
 /// @file glm/gtc/half_float.hpp
-/// @date 2009-04-29 / 2011-06-05
+/// @date 2009-04-29 / 2012-11-06
 /// @author Christophe Riccio
 ///
 /// @see core (dependence)
@@ -55,7 +55,7 @@ namespace detail
 		typedef half value_type;
 		typedef std::size_t size_type;
 
-        GLM_FUNC_DECL size_type length() const;
+		GLM_FUNC_DECL size_type length() const;
 		static GLM_FUNC_DECL size_type value_size();
 
 		typedef tvec2<half> type;
@@ -148,7 +148,7 @@ namespace detail
 		enum ctor{null};
 		typedef half value_type;
 		typedef std::size_t size_type;
-        GLM_FUNC_DECL size_type length() const;
+		GLM_FUNC_DECL size_type length() const;
 		static GLM_FUNC_DECL size_type value_size();
 
 		typedef tvec3<half> type;
@@ -245,7 +245,7 @@ namespace detail
 		enum ctor{null};
 		typedef half value_type;
 		typedef std::size_t size_type;
-        GLM_FUNC_DECL size_type length() const;
+		GLM_FUNC_DECL size_type length() const;
 		static GLM_FUNC_DECL size_type value_size();
 
 		typedef tvec4<half> type;
@@ -416,6 +416,22 @@ namespace detail
 	/// @see gtc_half_float
 	typedef detail::tmat4x4<detail::half>	hmat4x4;
 
+	/// Returns the absolute value of a half-precision floating-point value
+	/// @see gtc_half_float
+	half abs(half const & x);
+
+	/// Returns the absolute value of a half-precision floating-point two dimensional vector
+	/// @see gtc_half_float
+	hvec2 abs(hvec2 const & x);
+
+	/// Returns the absolute value of a half-precision floating-point three dimensional vector
+	/// @see gtc_half_float
+	hvec3 abs(hvec3 const & x);
+
+	/// Returns the absolute value of a half-precision floating-point four dimensional vector
+	/// @see gtc_half_float
+	hvec4 abs(hvec4 const & x);
+
 	/// @}
 }// namespace glm
 

glm/gtc/half_float.inl

@@ -22,7 +22,7 @@
 ///
 /// @ref gtc_half_float
 /// @file glm/gtc/half_float.inl
-/// @date 2009-04-29 / 2011-06-05
+/// @date 2009-04-29 / 2012-11-06
 /// @author Christophe Riccio
 ///////////////////////////////////////////////////////////////////////////////////
 
@@ -1006,4 +1006,34 @@ namespace detail
 #endif//(GLM_COMPONENT == GLM_COMPONENT_CXX98)
 
 }//namespace detail
+
+	GLM_FUNC_QUALIFIER half abs(half const & x)
+	{
+		return float(x) >= float(0) ? x : -x;
+	}
+
+	GLM_FUNC_QUALIFIER hvec2 abs(hvec2 const & v)
+	{
+		return hvec2(
+			float(v.x) >= float(0) ? v.x : -v.x, 
+			float(v.y) >= float(0) ? v.y : -v.y);
+	}
+
+	GLM_FUNC_QUALIFIER hvec3 abs(hvec3 const & v)
+	{
+		return hvec3(
+			float(v.x) >= float(0) ? v.x : -v.x, 
+			float(v.y) >= float(0) ? v.y : -v.y, 
+			float(v.z) >= float(0) ? v.z : -v.z);
+	}
+
+	GLM_FUNC_QUALIFIER hvec4 abs(hvec4 const & v)
+	{
+		return hvec4(
+			float(v.x) >= float(0) ? v.x : -v.x, 
+			float(v.y) >= float(0) ? v.y : -v.y, 
+			float(v.z) >= float(0) ? v.z : -v.z, 
+			float(v.w) >= float(0) ? v.w : -v.w);
+	}
+
 }//namespace glm