Added GTX_common with isdenomal #223

glm/gtx/common.hpp

@@ -0,0 +1,70 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+/// 
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+/// 
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref gtx_common
+/// @file glm/gtx/common.hpp
+/// @date 2014-09-08 / 2014-09-08
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+/// @see gtc_half_float (dependence)
+///
+/// @defgroup gtx_common GLM_GTX_common
+/// @ingroup gtx
+/// 
+/// @brief Provide functions to increase the compatibility with Cg and HLSL languages
+/// 
+/// <glm/gtx/common.hpp> need to be included to use these functionalities.
+///////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+// Dependencies:
+#include "../vec2.hpp"
+#include "../vec3.hpp"
+#include "../vec4.hpp"
+#include "../gtx/vec1.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
+#	pragma message("GLM: GLM_GTX_common extension included")
+#endif
+
+namespace glm
+{
+	/// @addtogroup gtx_common
+	/// @{
+
+	/// Returns true if x is a denormalized number
+	/// Numbers whose absolute value is too small to be represented in the normal format are represented in an alternate, denormalized format.
+	/// This format is less precise but can represent values closer to zero.
+	/// 
+	/// @tparam genType Floating-point scalar or vector types.
+	///
+	/// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/isnan.xml">GLSL isnan man page</a>
+	/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.3 Common Functions</a>
+	template <typename genType> 
+	GLM_FUNC_DECL typename genType::bool_type isdenormal(genType const & x);
+
+	/// @}
+}//namespace glm
+
+#include "common.inl"

glm/gtx/common.inl

@@ -0,0 +1,98 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+/// 
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+/// 
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref gtx_common
+/// @file glm/gtx/common.inl
+/// @date 2014-09-08 / 2014-09-08
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <cmath>
+
+namespace glm
+{
+	template <typename T> 
+	GLM_FUNC_QUALIFIER bool isdenormal(T const & x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+#		if(GLM_LANG & GLM_LANG_CXX11_FLAG)
+			return std::fpclassify(x) == FP_SUBNORMAL;
+#		else
+			return x != static_cast<T>(0) && std::fabs(x) < std::numeric_limits<T>::min();
+#		endif
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER typename detail::tvec1<T, P>::bool_type isdenormal
+	(
+		detail::tvec1<T, P> const & x
+	)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+		return typename detail::tvec1<T, P>::bool_type(
+			isdenormal(x.x));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER typename detail::tvec2<T, P>::bool_type isdenormal
+	(
+		detail::tvec2<T, P> const & x
+	)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+		return typename detail::tvec2<T, P>::bool_type(
+			isdenormal(x.x),
+			isdenormal(x.y));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER typename detail::tvec3<T, P>::bool_type isdenormal
+	(
+		detail::tvec3<T, P> const & x
+	)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+		return typename detail::tvec3<T, P>::bool_type(
+			isdenormal(x.x),
+			isdenormal(x.y),
+			isdenormal(x.z));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER typename detail::tvec4<T, P>::bool_type isdenormal
+	(
+		detail::tvec4<T, P> const & x
+	)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'isdenormal' only accept floating-point inputs");
+
+		return typename detail::tvec4<T, P>::bool_type(
+			isdenormal(x.x),
+			isdenormal(x.y),
+			isdenormal(x.z),
+			isdenormal(x.w));
+	}
+}//namespace glm

glm/gtx/compatibility.hpp

@@ -39,7 +39,7 @@
 #pragma once
 
 // Dependency:
-#include "../glm.hpp"  
+#include "../glm.hpp"
 #include "../gtc/quaternion.hpp"
 
 #if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))

readme.txt

@@ -42,13 +42,14 @@ GLM 0.9.6.0: 2014-XX-XX
 - Added transparent use of SIMD instructions for vec4 and mat4 types
 - Removed degrees for function parameters
 - Removed GLM_FORCE_RADIANS, active by default
-- Added move contructors and assignment operators (#141)
+- Added move contructors and assignment operators #141
 - Use pragma once
 - Fixed Visual Studio 14 compiler warnings
 - Added *vec1 support to *vec2 types
-- Limited extended integer type redifinition (#233)
-- Improved linearRand: support precision and integers (#230)
-- Added vec3 slerp (#237)
+- Limited extended integer type redifinition #233
+- Improved linearRand: support precision and integers #230
+- Added vec3 slerp #237
+- Added GTX_common with isdenomal #223
 
 ================================================================================
 GLM 0.9.5.5: 2014-XX-XX

test/gtx/CMakeLists.txt

@@ -3,6 +3,7 @@ glmCreateTestGTC(gtx_bit)
 glmCreateTestGTC(gtx_closest_point)
 glmCreateTestGTC(gtx_color_space_YCoCg)
 glmCreateTestGTC(gtx_color_space)
+glmCreateTestGTC(gtx_common)
 glmCreateTestGTC(gtx_compatibility)
 glmCreateTestGTC(gtx_component_wise)
 glmCreateTestGTC(gtx_euler_angle)

test/gtx/gtx_common.cpp

@@ -0,0 +1,33 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2014-09-08
+// Updated : 2014-09-08
+// Licence : This source is under MIT licence
+// File    : test/gtx/common.cpp
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include <glm/gtx/common.hpp>
+#include <glm/gtx/vec1.hpp>
+
+int test_isdenormal()
+{
+	int Error(0);
+
+	bool A = glm::isdenormal(1.0f);
+	glm::bvec1 B = glm::isdenormal(glm::vec1(1.0f));
+	glm::bvec2 C = glm::isdenormal(glm::vec2(1.0f));
+	glm::bvec3 D = glm::isdenormal(glm::vec3(1.0f));
+	glm::bvec4 E = glm::isdenormal(glm::vec4(1.0f));
+
+	return Error;
+}
+
+int main()
+{
+	int Error(0);
+
+	Error += test_isdenormal();
+
+	return Error;
+}