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Updated built-in

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This commit is contained in:
Christophe Riccio
2014-11-22 20:30:40 +01:00
parent 0bffce4f4b
commit 3135560336
1 changed files with 48 additions and 53 deletions
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101
glm/detail/func_integer.inl
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@@ -100,31 +100,29 @@ namespace detail
} }
}; };
# if (GLM_ARCH != GLM_ARCH_PURE) && (GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM)) # if(GLM_ARCH != GLM_ARCH_PURE) && (GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM))
template <typename genIUType>
template <typename genIUType> struct compute_findLSB<genIUType, 32>
struct compute_findLSB<genIUType, 32>
{
GLM_FUNC_QUALIFIER static int call(genIUType Value)
{ {
unsigned long Result(0); GLM_FUNC_QUALIFIER static int call(genIUType Value)
unsigned char IsNotNull = _BitScanForward(&Result, *reinterpret_cast<unsigned long*>(&Value)); {
return IsNotNull ? int(Result) : -1; unsigned long Result(0);
} unsigned char IsNotNull = _BitScanForward(&Result, *reinterpret_cast<unsigned long*>(&Value));
}; return IsNotNull ? int(Result) : -1;
}
};
template <typename genIUType> template <typename genIUType>
struct compute_findLSB<genIUType, 64> struct compute_findLSB<genIUType, 64>
{
GLM_FUNC_QUALIFIER static int call(genIUType Value)
{ {
unsigned long Result(0); GLM_FUNC_QUALIFIER static int call(genIUType Value)
unsigned char IsNotNull = _BitScanForward64(&Result, *reinterpret_cast<unsigned __int64*>(&Value)); {
return IsNotNull ? int(Result) : -1; unsigned long Result(0);
} unsigned char IsNotNull = _BitScanForward64(&Result, *reinterpret_cast<unsigned __int64*>(&Value));
}; return IsNotNull ? int(Result) : -1;
}
# endif };
# endif//GLM_ARCH != GLM_ARCH_PURE
template <typename T, glm::precision P, template <class, glm::precision> class vecType, bool EXEC = true> template <typename T, glm::precision P, template <class, glm::precision> class vecType, bool EXEC = true>
struct compute_findMSB_step_vec struct compute_findMSB_step_vec
@@ -160,44 +158,41 @@ namespace detail
} }
}; };
# if (GLM_ARCH != GLM_ARCH_PURE) && (GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM)) # if(GLM_ARCH != GLM_ARCH_PURE) && (GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_APPLE_CLANG | GLM_COMPILER_LLVM))
template <typename genIUType>
template <typename genIUType> GLM_FUNC_QUALIFIER int compute_findMSB_32(genIUType Value)
GLM_FUNC_QUALIFIER int compute_findMSB_32(genIUType Value)
{
unsigned long Result(0);
unsigned char IsNotNull = _BitScanReverse(&Result, *reinterpret_cast<unsigned long*>(&Value));
return IsNotNull ? int(Result) : -1;
}
template <typename genIUType>
GLM_FUNC_QUALIFIER int compute_findMSB_64(genIUType Value)
{
unsigned long Result(0);
unsigned char IsNotNull = _BitScanReverse64(&Result, *reinterpret_cast<unsigned __int64*>(&Value));
return IsNotNull ? int(Result) : -1;
}
template <typename T, glm::precision P, template <class, glm::precision> class vecType>
struct compute_findMSB_vec<T, P, vecType, 32>
{
GLM_FUNC_QUALIFIER static int call(vecType<T, P> const & x)
{ {
return detail::functor1<int, T, P, vecType>::call(compute_findMSB_32, x); unsigned long Result(0);
unsigned char IsNotNull = _BitScanReverse(&Result, *reinterpret_cast<unsigned long*>(&Value));
return IsNotNull ? int(Result) : -1;
} }
};
template <typename T, glm::precision P, template <class, glm::precision> class vecType> template <typename genIUType>
struct compute_findMSB_vec<T, P, vecType, 64> GLM_FUNC_QUALIFIER int compute_findMSB_64(genIUType Value)
{
GLM_FUNC_QUALIFIER static int call(vecType<T, P> const & x)
{ {
return detail::functor1<int, T, P, vecType>::call(compute_findMSB_64, x); unsigned long Result(0);
unsigned char IsNotNull = _BitScanReverse64(&Result, *reinterpret_cast<unsigned __int64*>(&Value));
return IsNotNull ? int(Result) : -1;
} }
};
# endif template <typename T, glm::precision P, template <class, glm::precision> class vecType>
struct compute_findMSB_vec<T, P, vecType, 32>
{
GLM_FUNC_QUALIFIER static int call(vecType<T, P> const & x)
{
return detail::functor1<int, T, P, vecType>::call(compute_findMSB_32, x);
}
};
template <typename T, glm::precision P, template <class, glm::precision> class vecType>
struct compute_findMSB_vec<T, P, vecType, 64>
{
GLM_FUNC_QUALIFIER static int call(vecType<T, P> const & x)
{
return detail::functor1<int, T, P, vecType>::call(compute_findMSB_64, x);
}
};
# endif//GLM_ARCH != GLM_ARCH_PURE
}//namespace detail }//namespace detail
// uaddCarry // uaddCarry