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128 lines
3.0 KiB
128 lines
3.0 KiB
///////////////////////////////////////////////////////////////////////////////////////////////////
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// OpenGL Mathematics Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Created : 2009-10-26
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// Updated : 2011-06-07
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// Licence : This source is under MIT License
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// File : glm/gtx/multiple.inl
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Dependency:
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// - GLM core
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///////////////////////////////////////////////////////////////////////////////////////////////////
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namespace glm
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{
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//////////////////////
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// higherMultiple
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template <typename genType>
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GLM_FUNC_QUALIFIER genType higherMultiple
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(
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genType const & Source,
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genType const & Multiple
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)
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{
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if (Source > 0)
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{
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genType Tmp = Source - 1;
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return Tmp + (Multiple - (Tmp % Multiple));
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}
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else
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return Source + (-Source % Multiple);
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}
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template <>
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GLM_FUNC_QUALIFIER detail::half higherMultiple
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(
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detail::half const & SourceH,
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detail::half const & MultipleH
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)
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{
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float Source = SourceH.toFloat();
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float Multiple = MultipleH.toFloat();
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int Tmp = int(float(Source)) % int(Multiple);
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return detail::half(Tmp ? Source + Multiple - float(Tmp) : Source);
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}
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template <>
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GLM_FUNC_QUALIFIER float higherMultiple
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(
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float const & Source,
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float const & Multiple
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)
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{
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int Tmp = int(Source) % int(Multiple);
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return Tmp ? Source + Multiple - float(Tmp) : Source;
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}
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template <>
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GLM_FUNC_QUALIFIER double higherMultiple
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(
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double const & Source,
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double const & Multiple
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)
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{
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long Tmp = long(Source) % long(Multiple);
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return Tmp ? Source + Multiple - double(Tmp) : Source;
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}
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VECTORIZE_VEC_VEC(higherMultiple)
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//////////////////////
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// lowerMultiple
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template <typename genType>
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GLM_FUNC_QUALIFIER genType lowerMultiple
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(
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genType const & Source,
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genType const & Multiple
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)
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{
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if (Source >= 0)
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return Source - Source % Multiple;
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else
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{
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genType Tmp = Source + 1;
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return Tmp - Tmp % Multiple - Multiple;
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}
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}
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template <>
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GLM_FUNC_QUALIFIER detail::half lowerMultiple
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(
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detail::half const & SourceH,
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detail::half const & MultipleH
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)
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{
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float Source = SourceH.toFloat();
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float Multiple = MultipleH.toFloat();
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int Tmp = int(float(Source)) % int(float(Multiple));
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return detail::half(Tmp ? Source - float(Tmp) : Source);
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}
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template <>
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GLM_FUNC_QUALIFIER float lowerMultiple
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(
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float const & Source,
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float const & Multiple
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)
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{
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int Tmp = int(Source) % int(Multiple);
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return Tmp ? Source - float(Tmp) : Source;
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}
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template <>
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GLM_FUNC_QUALIFIER double lowerMultiple
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(
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double const & Source,
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double const & Multiple
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)
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{
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long Tmp = long(Source) % long(Multiple);
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return Tmp ? Source - double(Tmp) : Source;
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}
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VECTORIZE_VEC_VEC(lowerMultiple)
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}//namespace glm
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