diff options
Diffstat (limited to 'src/include/glm/ext/scalar_common.inl')
| -rw-r--r-- | src/include/glm/ext/scalar_common.inl | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/include/glm/ext/scalar_common.inl b/src/include/glm/ext/scalar_common.inl new file mode 100644 index 0000000..53de033 --- /dev/null +++ b/src/include/glm/ext/scalar_common.inl @@ -0,0 +1,152 @@ +namespace glm
+{
+ template<typename T>
+ GLM_FUNC_QUALIFIER T min(T a, T b, T c)
+ {
+ return glm::min(glm::min(a, b), c);
+ }
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T min(T a, T b, T c, T d)
+ {
+ return glm::min(glm::min(a, b), glm::min(c, d));
+ }
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T max(T a, T b, T c)
+ {
+ return glm::max(glm::max(a, b), c);
+ }
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T max(T a, T b, T c, T d)
+ {
+ return glm::max(glm::max(a, b), glm::max(c, d));
+ }
+
+# if GLM_HAS_CXX11_STL
+ using std::fmin;
+# else
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmin(T a, T b)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
+
+ if (isnan(a))
+ return b;
+ return min(a, b);
+ }
+# endif
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmin(T a, T b, T c)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
+
+ if (isnan(a))
+ return fmin(b, c);
+ if (isnan(b))
+ return fmin(a, c);
+ if (isnan(c))
+ return min(a, b);
+ return min(a, b, c);
+ }
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmin(T a, T b, T c, T d)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmin' only accept floating-point input");
+
+ if (isnan(a))
+ return fmin(b, c, d);
+ if (isnan(b))
+ return min(a, fmin(c, d));
+ if (isnan(c))
+ return fmin(min(a, b), d);
+ if (isnan(d))
+ return min(a, b, c);
+ return min(a, b, c, d);
+ }
+
+
+# if GLM_HAS_CXX11_STL
+ using std::fmax;
+# else
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmax(T a, T b)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
+
+ if (isnan(a))
+ return b;
+ return max(a, b);
+ }
+# endif
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmax(T a, T b, T c)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
+
+ if (isnan(a))
+ return fmax(b, c);
+ if (isnan(b))
+ return fmax(a, c);
+ if (isnan(c))
+ return max(a, b);
+ return max(a, b, c);
+ }
+
+ template<typename T>
+ GLM_FUNC_QUALIFIER T fmax(T a, T b, T c, T d)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'fmax' only accept floating-point input");
+
+ if (isnan(a))
+ return fmax(b, c, d);
+ if (isnan(b))
+ return max(a, fmax(c, d));
+ if (isnan(c))
+ return fmax(max(a, b), d);
+ if (isnan(d))
+ return max(a, b, c);
+ return max(a, b, c, d);
+ }
+
+ // fclamp
+ template<typename genType>
+ GLM_FUNC_QUALIFIER genType fclamp(genType x, genType minVal, genType maxVal)
+ {
+ GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'fclamp' only accept floating-point or integer inputs");
+ return fmin(fmax(x, minVal), maxVal);
+ }
+
+ template<typename genType>
+ GLM_FUNC_QUALIFIER genType clamp(genType const& Texcoord)
+ {
+ return glm::clamp(Texcoord, static_cast<genType>(0), static_cast<genType>(1));
+ }
+
+ template<typename genType>
+ GLM_FUNC_QUALIFIER genType repeat(genType const& Texcoord)
+ {
+ return glm::fract(Texcoord);
+ }
+
+ template<typename genType>
+ GLM_FUNC_QUALIFIER genType mirrorClamp(genType const& Texcoord)
+ {
+ return glm::fract(glm::abs(Texcoord));
+ }
+
+ template<typename genType>
+ GLM_FUNC_QUALIFIER genType mirrorRepeat(genType const& Texcoord)
+ {
+ genType const Abs = glm::abs(Texcoord);
+ genType const Clamp = glm::mod(glm::floor(Abs), static_cast<genType>(2));
+ genType const Floor = glm::floor(Abs);
+ genType const Rest = Abs - Floor;
+ genType const Mirror = Clamp + Rest;
+ return mix(Rest, static_cast<genType>(1) - Rest, Mirror >= static_cast<genType>(1));
+ }
+}//namespace glm
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