glm/glm/gtx/wrap.inl

///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// 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.
/// 
/// Restrictions:
///		By making use of the Software for military purposes, you choose to make
///		a Bunny unhappy.
/// 
/// 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_wrap
/// @file glm/gtx/wrap.inl
/// @date 2009-11-25 / 2011-06-07
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////

namespace glm
{
	template <typename genType>
	GLM_FUNC_QUALIFIER genType clamp(genType const & Texcoord) GLM_NOEXCEPT
	{
		return glm::clamp(Texcoord, genType(0), genType(1));
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec2<T, P> clamp(tvec2<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec2<T, P> Result;
		for(typename tvec2<T, P>::size_type i = 0; i < tvec2<T, P>::value_size(); ++i)
			Result[i] = clamp_to_edge(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec3<T, P> clamp(tvec3<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec3<T, P> Result;
		for(typename tvec3<T, P>::size_type i = 0; i < tvec3<T, P>::value_size(); ++i)
			Result[i] = clamp_to_edge(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec4<T, P> clamp(tvec4<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec4<T, P> Result;
		for(typename tvec4<T, P>::size_type i = 0; i < tvec4<T, P>::value_size(); ++i)
			Result[i] = clamp_to_edge(Texcoord[i]);
		return Result;
	}

	template <typename genType>
	GLM_FUNC_QUALIFIER genType repeat(genType const & Texcoord) GLM_NOEXCEPT
	{
		return glm::fract(Texcoord);
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec2<T, P> repeat(tvec2<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec2<T, P> Result;
		for(typename tvec2<T, P>::size_type i = 0; i < tvec2<T, P>::value_size(); ++i)
			Result[i] = repeat(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec3<T, P> repeat(tvec3<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec3<T, P> Result;
		for(typename tvec3<T, P>::size_type i = 0; i < tvec3<T, P>::value_size(); ++i)
			Result[i] = repeat(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec4<T, P> repeat(tvec4<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec4<T, P> Result;
		for(typename tvec4<T, P>::size_type i = 0; i < tvec4<T, P>::value_size(); ++i)
			Result[i] = repeat(Texcoord[i]);
		return Result;
	}

	template <typename genType>
	GLM_FUNC_QUALIFIER genType mirrorClamp(genType const & Texcoord) GLM_NOEXCEPT
	{
		return glm::fract(glm::abs(Texcoord));
		//return glm::mod(glm::abs(Texcoord), 1.0f);
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec2<T, P> mirrorClamp(tvec2<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec2<T, P> Result;
		for(typename tvec2<T, P>::size_type i = 0; i < tvec2<T, P>::value_size(); ++i)
			Result[i] = mirrorClamp(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec3<T, P> mirrorClamp(tvec3<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec3<T, P> Result;
		for(typename tvec3<T, P>::size_type i = 0; i < tvec3<T, P>::value_size(); ++i)
			Result[i] = mirrorClamp(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec4<T, P> mirrorClamp(tvec4<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec4<T, P> Result;
		for(typename tvec4<T, P>::size_type i = 0; i < tvec4<T, P>::value_size(); ++i)
			Result[i] = mirrorClamp(Texcoord[i]);
		return Result;
	}

	template <typename genType>
	GLM_FUNC_QUALIFIER genType mirrorRepeat(genType const & Texcoord) GLM_NOEXCEPT
	{
		genType const Abs = glm::abs(Texcoord);
		genType const Clamp = genType(int(glm::floor(Abs)) % 2);
		genType const Floor = glm::floor(Abs);
		genType const Rest = Abs - Floor;
		genType const Mirror = Clamp + Rest;

		genType Out;
		if(Mirror >= genType(1))
			Out = genType(1) - Rest;
		else
			Out = Rest;
		return Out;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec2<T, P> mirrorRepeat(tvec2<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec2<T, P> Result;
		for(typename tvec2<T, P>::size_type i = 0; i < tvec2<T, P>::value_size(); ++i)
			Result[i] = mirrorRepeat(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec3<T, P> mirrorRepeat(tvec3<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec3<T, P> Result;
		for(typename tvec3<T, P>::size_type i = 0; i < tvec3<T, P>::value_size(); ++i)
			Result[i] = mirrorRepeat(Texcoord[i]);
		return Result;
	}

	template <typename T, precision P>
	GLM_FUNC_QUALIFIER tvec4<T, P> mirrorRepeat(tvec4<T, P> const & Texcoord) GLM_NOEXCEPT
	{
		tvec4<T, P> Result;
		for(typename tvec4<T, P>::size_type i = 0; i < tvec4<T, P>::value_size(); ++i)
			Result[i] = mirrorRepeat(Texcoord[i]);
		return Result;
	}
}//namespace glm