anulax
/
glm
1
0
Fork 0
Code Issues Pull Requests Packages project_board Releases Wiki Activity

Added GLM_GTX_constants extension

Browse Source
master
Christophe Riccio ago%!(EXTRA string=14 years)
parent 264054d59d
commit b7c11b1e6a
2 changed files with 969 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 177
      glm/gtx/constants.hpp
  2. 792
      glm/gtx/constants.inl

177
glm/gtx/constants.hpp
Unescape View File

@ -0,0 +1,177 @@
///////////////////////////////////////////////////////////////////////////////////
/// 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

792
glm/gtx/constants.inl
Unescape View File

@ -0,0 +1,792 @@
///////////////////////////////////////////////////////////////////////////////////
/// 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
Write Preview
Loading…
Cancel
Save