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Added GLM_GTX_constants extension

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Christophe Riccio ago%!(EXTRA string=14 years)
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  1. 177
      glm/gtx/constants.hpp
  2. 792
      glm/gtx/constants.inl

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glm/gtx/constants.hpp
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///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2011 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 constants
/// @file glm/gtx/constants.hpp
/// @date 2011-09-30 / 2011-09-30
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtc_half_float (dependence)
///
/// @defgroup gtx_constants GLM_GTX_constants: Provide build-in constants
/// @ingroup gtx
///
/// @brief Allow to perform bit operations on integer values
///
/// <glm/gtx/constants.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////
#ifndef GLM_GTX_constants
#define GLM_GTX_constants GLM_VERSION
// Dependency:
#include "../glm.hpp"
#include "../gtc/half_float.hpp"
#if(defined(GLM_MESSAGES) && !defined(glm_ext))
# pragma message("GLM: GLM_GTX_constants extension included")
#endif
namespace glm
{
/// @addtogroup gtx_constants
/// @{
template <typename T>
T pi();
template <typename T>
GLM_FUNC_QUALIFIER T pi()
{
return T(3.14159265358979323846264338327950288);
}
template <typename T>
GLM_FUNC_QUALIFIER T root_pi()
{
return T(1.772453850905516027);
}
template <typename T>
GLM_FUNC_QUALIFIER T half_pi()
{
return T(1.57079632679489661923132169163975144);
}
template <typename T>
GLM_FUNC_QUALIFIER T quarter_pi()
{
return T(0.785398163397448309615660845819875721);
}
template <typename T>
GLM_FUNC_QUALIFIER T one_over_pi()
{
return T(0.318309886183790671537767526745028724);
}
template <typename T>
GLM_FUNC_QUALIFIER T two_over_pi()
{
return T(0.636619772367581343075535053490057448);
}
template <typename T>
GLM_FUNC_QUALIFIER T two_over_root_pi()
{
return T(1.12837916709551257389615890312154517);
}
template <typename T>
GLM_FUNC_QUALIFIER T one_over_root_two()
{
return T(0.707106781186547524400844362104849039);
}
template <typename T>
GLM_FUNC_QUALIFIER T root_half_pi()
{
return T(1.253314137315500251);
}
template <typename T>
GLM_FUNC_QUALIFIER T root_two_pi()
{
return T(2.506628274631000502);
}
template <typename T>
GLM_FUNC_QUALIFIER T root_ln_four()
{
return T(1.17741002251547469);
}
template <typename T>
GLM_FUNC_QUALIFIER T e()
{
return T(2.71828182845904523536);
}
template <typename T>
GLM_FUNC_QUALIFIER T euler()
{
return T(0.577215664901532860606);
}
template <typename T>
GLM_FUNC_QUALIFIER T root_two()
{
return T(1.41421356237309504880168872420969808);
}
template <typename T>
GLM_FUNC_QUALIFIER T ln_two()
{
return T(0.693147180559945309417232121458176568);
}
template <typename T>
GLM_FUNC_QUALIFIER T ln_ten(2.30258509299404568401799145468436421)
{
return T();
}
template <typename T>
GLM_FUNC_QUALIFIER T ln_ln_two()
{
return T(-0.3665129205816643);
}
template <typename T>
GLM_FUNC_QUALIFIER T third()
{
return T(0.333333333333333333);
}
template <typename T>
GLM_FUNC_QUALIFIER T twothirds()
{
return T(0.666666666666666666);
}
/// @}
} //namespace glm
#include "constants.inl"
#endif//GLM_GTX_constants

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glm/gtx/constants.inl
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///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2011 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 gtc_half_float
/// @file glm/gtc/half_float.inl
/// @date 2009-04-29 / 2011-06-05
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
#include "../core/_detail.hpp"
namespace glm{
template <typename genIType>
GLM_FUNC_QUALIFIER genIType mask
(
genIType const & count
)
{
return ((genIType(1) << (count)) - genIType(1));
}
template <typename valIType>
GLM_FUNC_QUALIFIER detail::tvec2<valIType> mask
(
detail::tvec2<valIType> const & count
)
{
return detail::tvec2<valIType>(
mask(count[0]),
mask(count[1]));
}
template <typename valIType>
GLM_FUNC_QUALIFIER detail::tvec3<valIType> mask
(
detail::tvec3<valIType> const & count
)
{
return detail::tvec3<valIType>(
mask(count[0]),
mask(count[1]),
mask(count[2]));
}
template <typename valIType>
GLM_FUNC_QUALIFIER detail::tvec4<valIType> mask
(
detail::tvec4<valIType> const & count
)
{
return detail::tvec4<valIType>(
mask(count[0]),
mask(count[1]),
mask(count[2]),
mask(count[3]));
}
// extractField
template <typename genIType>
GLM_FUNC_QUALIFIER genIType extractField
(
half const & value,
genIType const & first,
genIType const & count
)
{
assert(first + count < sizeof(half));
return (value._data() << first) >> ((sizeof(half) << 3) - count);
}
template <typename genIType>
GLM_FUNC_QUALIFIER genIType extractField
(
float const & value,
genIType const & first,
genIType const & count
)
{
assert(first + count < sizeof(float));
return (detail::uif32(value).i << first) >> ((sizeof(float) << 3) - count);
}
template <typename genIType>
GLM_FUNC_QUALIFIER genIType extractField
(
double const & value,
genIType const & first,
genIType const & count
)
{
assert(first + count < sizeof(double));
return (detail::uif64(value).i << first) >> ((sizeof(double) << genIType(3)) - count);
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER genIUType extractField
(
genIUType const & Value,
sizeType const & First,
sizeType const & Count
)
{
sizeType GenSize = sizeof(genIUType) << 3;
assert(First + Count <= GenSize);
genIUType ShiftLeft = Count ? Value << (GenSize - (Count + First)) : 0;
genIUType ShiftBack = ShiftLeft >> genIUType(GenSize - Count);
return ShiftBack;
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
(
detail::tvec2<genIUType> const & value,
sizeType const & first,
sizeType const & count
)
{
return detail::tvec2<genIUType>(
extractField(value[0], first, count),
extractField(value[1], first, count));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
(
detail::tvec3<genIUType> const & value,
sizeType const & first,
sizeType const & count
)
{
return detail::tvec3<genIUType>(
extractField(value[0], first, count),
extractField(value[1], first, count),
extractField(value[2], first, count));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
(
detail::tvec4<genIUType> const & value,
sizeType const & first,
sizeType const & count
)
{
return detail::tvec4<genIUType>(
extractField(value[0], first, count),
extractField(value[1], first, count),
extractField(value[2], first, count),
extractField(value[3], first, count));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
(
detail::tvec2<genIUType> const & value,
detail::tvec2<sizeType> const & first,
detail::tvec2<sizeType> const & count
)
{
return detail::tvec2<genIUType>(
extractField(value[0], first[0], count[0]),
extractField(value[1], first[1], count[1]));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
(
detail::tvec3<genIUType> const & value,
detail::tvec3<sizeType> const & first,
detail::tvec3<sizeType> const & count
)
{
return detail::tvec3<genIUType>(
extractField(value[0], first[0], count[0]),
extractField(value[1], first[1], count[1]),
extractField(value[2], first[2], count[2]));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
(
detail::tvec4<genIUType> const & value,
detail::tvec4<sizeType> const & first,
detail::tvec4<sizeType> const & count
)
{
return detail::tvec4<genIUType>(
extractField(value[0], first[0], count[0]),
extractField(value[1], first[1], count[1]),
extractField(value[2], first[2], count[2]),
extractField(value[3], first[3], count[3]));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec2<genIUType> extractField
(
genIUType const & value,
detail::tvec2<sizeType> const & first,
detail::tvec2<sizeType> const & count
)
{
return detail::tvec2<genIUType>(
extractField(value, first[0], count[0]),
extractField(value, first[1], count[1]));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec3<genIUType> extractField
(
genIUType const & value,
detail::tvec3<sizeType> const & first,
detail::tvec3<sizeType> const & count
)
{
return detail::tvec3<genIUType>(
extractField(value, first[0], count[0]),
extractField(value, first[1], count[1]),
extractField(value, first[2], count[2]));
}
template <typename genIUType, typename sizeType>
GLM_FUNC_QUALIFIER detail::tvec4<genIUType> extractField
(
genIUType const & value,
detail::tvec4<sizeType> const & first,
detail::tvec4<sizeType> const & count
)
{
return detail::tvec4<genIUType>(
extractField(value, first[0], count[0]),
extractField(value, first[1], count[1]),
extractField(value, first[2], count[2]),
extractField(value, first[3], count[3]));
}
// lowestBit
template <typename genType>
GLM_FUNC_QUALIFIER int lowestBit
(
genType const & Value
)
{
assert(Value != genType(0)); // not valid call
genType Bit;
for(Bit = genType(0); !(Value & (1 << Bit)); ++Bit){}
return Bit;
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<int> lowestBit
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<int>(
lowestBit(value[0]),
lowestBit(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<int> lowestBit
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<int>(
lowestBit(value[0]),
lowestBit(value[1]),
lowestBit(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<int> lowestBit
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<int>(
lowestBit(value[0]),
lowestBit(value[1]),
lowestBit(value[2]),
lowestBit(value[3]));
}
// highestBit
template <typename genType>
GLM_FUNC_QUALIFIER int highestBit
(
genType const & value
)
{
assert(value != genType(0)); // not valid call
genType bit = genType(-1);
for(genType tmp = value; tmp; tmp >>= 1, ++bit){}
return bit;
}
//template <>
//GLM_FUNC_QUALIFIER int highestBit<int>
//(
// int value
//)
//{
// int bit = -1;
// for(int tmp = value; tmp; tmp >>= 1, ++bit);
// return bit;
//}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<int> highestBit
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<int>(
highestBit(value[0]),
highestBit(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<int> highestBit
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<int>(
highestBit(value[0]),
highestBit(value[1]),
highestBit(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<int> highestBit
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<int>(
highestBit(value[0]),
highestBit(value[1]),
highestBit(value[2]),
highestBit(value[3]));
}
// highestBitValue
template <typename genType>
GLM_FUNC_QUALIFIER genType highestBitValue
(
genType const & value
)
{
genType tmp = value;
genType result = genType(0);
while(tmp)
{
result = (tmp & (~tmp + 1)); // grab lowest bit
tmp &= ~result; // clear lowest bit
}
return result;
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<int> highestBitValue
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<int>(
highestBitValue(value[0]),
highestBitValue(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<int> highestBitValue
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<int>(
highestBitValue(value[0]),
highestBitValue(value[1]),
highestBitValue(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<int> highestBitValue
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<int>(
highestBitValue(value[0]),
highestBitValue(value[1]),
highestBitValue(value[2]),
highestBitValue(value[3]));
}
// isPowerOfTwo
template <typename genType>
GLM_FUNC_QUALIFIER bool isPowerOfTwo(genType const & Value)
{
//detail::If<std::numeric_limits<genType>::is_signed>::apply(abs, Value);
//return !(Value & (Value - 1));
// For old complier?
genType Result = Value;
if(std::numeric_limits<genType>::is_signed)
Result = abs(Result);
return !(Result & (Result - 1));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<bool> isPowerOfTwo
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<bool>(
isPowerOfTwo(value[0]),
isPowerOfTwo(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<bool> isPowerOfTwo
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<bool>(
isPowerOfTwo(value[0]),
isPowerOfTwo(value[1]),
isPowerOfTwo(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<bool> isPowerOfTwo
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<bool>(
isPowerOfTwo(value[0]),
isPowerOfTwo(value[1]),
isPowerOfTwo(value[2]),
isPowerOfTwo(value[3]));
}
// powerOfTwoAbove
template <typename genType>
GLM_FUNC_QUALIFIER genType powerOfTwoAbove(genType const & value)
{
return isPowerOfTwo(value) ? value : highestBitValue(value) << 1;
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoAbove
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<valType>(
powerOfTwoAbove(value[0]),
powerOfTwoAbove(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoAbove
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<valType>(
powerOfTwoAbove(value[0]),
powerOfTwoAbove(value[1]),
powerOfTwoAbove(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoAbove
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<valType>(
powerOfTwoAbove(value[0]),
powerOfTwoAbove(value[1]),
powerOfTwoAbove(value[2]),
powerOfTwoAbove(value[3]));
}
// powerOfTwoBelow
template <typename genType>
GLM_FUNC_QUALIFIER genType powerOfTwoBelow
(
genType const & value
)
{
return isPowerOfTwo(value) ? value : highestBitValue(value);
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoBelow
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<valType>(
powerOfTwoBelow(value[0]),
powerOfTwoBelow(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoBelow
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<valType>(
powerOfTwoBelow(value[0]),
powerOfTwoBelow(value[1]),
powerOfTwoBelow(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoBelow
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<valType>(
powerOfTwoBelow(value[0]),
powerOfTwoBelow(value[1]),
powerOfTwoBelow(value[2]),
powerOfTwoBelow(value[3]));
}
// powerOfTwoNearest
template <typename genType>
GLM_FUNC_QUALIFIER genType powerOfTwoNearest
(
genType const & value
)
{
if(isPowerOfTwo(value))
return value;
genType prev = highestBitValue(value);
genType next = prev << 1;
return (next - value) < (value - prev) ? next : prev;
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> powerOfTwoNearest
(
detail::tvec2<valType> const & value
)
{
return detail::tvec2<valType>(
powerOfTwoNearest(value[0]),
powerOfTwoNearest(value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> powerOfTwoNearest
(
detail::tvec3<valType> const & value
)
{
return detail::tvec3<valType>(
powerOfTwoNearest(value[0]),
powerOfTwoNearest(value[1]),
powerOfTwoNearest(value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> powerOfTwoNearest
(
detail::tvec4<valType> const & value
)
{
return detail::tvec4<valType>(
powerOfTwoNearest(value[0]),
powerOfTwoNearest(value[1]),
powerOfTwoNearest(value[2]),
powerOfTwoNearest(value[3]));
}
template <typename genType>
GLM_FUNC_QUALIFIER genType bitRevert(genType const & In)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRevert' only accept integer values");
genType Out = 0;
std::size_t BitSize = sizeof(genType) * 8;
for(std::size_t i = 0; i < BitSize; ++i)
if(In & (genType(1) << i))
Out |= genType(1) << (BitSize - 1 - i);
return Out;
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRevert
(
detail::tvec2<valType> const & Value
)
{
return detail::tvec2<valType>(
bitRevert(Value[0]),
bitRevert(Value[1]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRevert
(
detail::tvec3<valType> const & Value
)
{
return detail::tvec3<valType>(
bitRevert(Value[0]),
bitRevert(Value[1]),
bitRevert(Value[2]));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRevert
(
detail::tvec4<valType> const & Value
)
{
return detail::tvec4<valType>(
bitRevert(Value[0]),
bitRevert(Value[1]),
bitRevert(Value[2]),
bitRevert(Value[3]));
}
template <typename genType>
GLM_FUNC_QUALIFIER genType bitRotateRight(genType const & In, std::size_t Shift)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRotateRight' only accept integer values");
std::size_t BitSize = sizeof(genType) * 8;
return (In << Shift) | (In >> (BitSize - Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRotateRight
(
detail::tvec2<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec2<valType>(
bitRotateRight(Value[0], Shift),
bitRotateRight(Value[1], Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRotateRight
(
detail::tvec3<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec3<valType>(
bitRotateRight(Value[0], Shift),
bitRotateRight(Value[1], Shift),
bitRotateRight(Value[2], Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRotateRight
(
detail::tvec4<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec4<valType>(
bitRotateRight(Value[0], Shift),
bitRotateRight(Value[1], Shift),
bitRotateRight(Value[2], Shift),
bitRotateRight(Value[3], Shift));
}
template <typename genType>
GLM_FUNC_QUALIFIER genType bitRotateLeft(genType const & In, std::size_t Shift)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_integer, "'bitRotateLeft' only accept integer values");
std::size_t BitSize = sizeof(genType) * 8;
return (In >> Shift) | (In << (BitSize - Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec2<valType> bitRotateLeft
(
detail::tvec2<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec2<valType>(
bitRotateLeft(Value[0], Shift),
bitRotateLeft(Value[1], Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> bitRotateLeft
(
detail::tvec3<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec3<valType>(
bitRotateLeft(Value[0], Shift),
bitRotateLeft(Value[1], Shift),
bitRotateLeft(Value[2], Shift));
}
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec4<valType> bitRotateLeft
(
detail::tvec4<valType> const & Value,
std::size_t Shift
)
{
return detail::tvec4<valType>(
bitRotateLeft(Value[0], Shift),
bitRotateLeft(Value[1], Shift),
bitRotateLeft(Value[2], Shift),
bitRotateLeft(Value[3], Shift));
}
template <typename genIUType>
GLM_FUNC_QUALIFIER genIUType fillBitfieldWithOne
(
genIUType const & Value,
int const & FromBit,
int const & ToBit
)
{
assert(FromBit <= ToBit);
assert(ToBit <= sizeof(genIUType) * std::size_t(8));
genIUType Result = Value;
for(std::size_t i = 0; i <= ToBit; ++i)
Result |= (1 << i);
return Result;
}
template <typename genIUType>
GLM_FUNC_QUALIFIER genIUType fillBitfieldWithZero
(
genIUType const & Value,
int const & FromBit,
int const & ToBit
)
{
assert(FromBit <= ToBit);
assert(ToBit <= sizeof(genIUType) * std::size_t(8));
genIUType Result = Value;
for(std::size_t i = 0; i <= ToBit; ++i)
Result &= ~(1 << i);
return Result;
}
}//namespace glm
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