///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
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/// 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.
///
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// 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 gtx_compatibility
/// @file glm/gtx/compatibility.hpp
/// @date 2007-01-24 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtc_half_float (dependence)
///
/// @defgroup gtx_compatibility GLM_GTX_compatibility: Cg and HLSL compatibility
/// @ingroup gtx
///
/// @brief Provide functions to increase the compatibility with Cg and HLSL languages
///
/// <glm/gtx/compatibility.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLM_GTX_compatibility
#define GLM_GTX_compatibility GLM_VERSION

// Dependency:
#include "../glm.hpp"
#include "../gtc/half_float.hpp"
#include "../gtc/quaternion.hpp"

#if (defined(GLM_MESSAGES) && !defined(glm_ext))
#pragma message("GLM: GLM_GTX_compatibility extension included")
#endif

#if (GLM_COMPILER & GLM_COMPILER_VC)
#include <cfloat>
#elif (GLM_COMPILER & GLM_COMPILER_GCC)
#include <cmath>
#if (GLM_PLATFORM & GLM_PLATFORM_ANDROID)
#undef isfinite
#endif
#endif //GLM_COMPILER

namespace glm {
/// @addtogroup gtx_compatibility
/// @{

template<typename T>
GLM_FUNC_QUALIFIER T lerp(T x, T y, T a)
{
    return mix(x, y, a);
} //!< \brief Returns x * (1.0 - a) + y * a, i.e., the linear blend of x and y using the floating-point value a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec2<T> lerp(const detail::tvec2<T> & x, const detail::tvec2<T> & y, T a)
{
    return mix(x, y, a);
} //!< \brief Returns x * (1.0 - a) + y * a, i.e., the linear blend of x and y using the floating-point value a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec3<T> lerp(const detail::tvec3<T> & x, const detail::tvec3<T> & y, T a)
{
    return mix(x, y, a);
} //!< \brief Returns x * (1.0 - a) + y * a, i.e., the linear blend of x and y using the floating-point value a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec4<T> lerp(const detail::tvec4<T> & x, const detail::tvec4<T> & y, T a)
{
    return mix(x, y, a);
} //!< \brief Returns x * (1.0 - a) + y * a, i.e., the linear blend of x and y using the floating-point value a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec2<T> lerp(const detail::tvec2<T> & x, const detail::tvec2<T> & y, const detail::tvec2<T> & a)
{
    return mix(x, y, a);
} //!< \brief Returns the component-wise result of x * (1.0 - a) + y * a, i.e., the linear blend of x and y using vector a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec3<T> lerp(const detail::tvec3<T> & x, const detail::tvec3<T> & y, const detail::tvec3<T> & a)
{
    return mix(x, y, a);
} //!< \brief Returns the component-wise result of x * (1.0 - a) + y * a, i.e., the linear blend of x and y using vector a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec4<T> lerp(const detail::tvec4<T> & x, const detail::tvec4<T> & y, const detail::tvec4<T> & a)
{
    return mix(x, y, a);
} //!< \brief Returns the component-wise result of x * (1.0 - a) + y * a, i.e., the linear blend of x and y using vector a. The value for a is not restricted to the range [0, 1]. (From GLM_GTX_compatibility)

template<typename T>
GLM_FUNC_QUALIFIER T slerp(detail::tquat<T> const & x, detail::tquat<T> const & y, T const & a)
{
    return mix(x, y, a);
} //!< \brief Returns the slurp interpolation between two quaternions.

template<typename T>
GLM_FUNC_QUALIFIER T saturate(T x)
{
    return clamp(x, T(0), T(1));
} //!< \brief Returns clamp(x, 0, 1) for each component in x. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec2<T> saturate(const detail::tvec2<T> & x)
{
    return clamp(x, T(0), T(1));
} //!< \brief Returns clamp(x, 0, 1) for each component in x. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec3<T> saturate(const detail::tvec3<T> & x)
{
    return clamp(x, T(0), T(1));
} //!< \brief Returns clamp(x, 0, 1) for each component in x. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec4<T> saturate(const detail::tvec4<T> & x)
{
    return clamp(x, T(0), T(1));
} //!< \brief Returns clamp(x, 0, 1) for each component in x. (From GLM_GTX_compatibility)

template<typename T>
GLM_FUNC_QUALIFIER T atan2(T x, T y)
{
    return atan(x, y);
} //!< \brief Arc tangent. Returns an angle whose tangent is y/x. The signs of x and y are used to determine what quadrant the angle is in. The range of values returned by this function is [-PI, PI]. Results are undefined if x and y are both 0. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec2<T> atan2(const detail::tvec2<T> & x, const detail::tvec2<T> & y)
{
    return atan(x, y);
} //!< \brief Arc tangent. Returns an angle whose tangent is y/x. The signs of x and y are used to determine what quadrant the angle is in. The range of values returned by this function is [-PI, PI]. Results are undefined if x and y are both 0. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec3<T> atan2(const detail::tvec3<T> & x, const detail::tvec3<T> & y)
{
    return atan(x, y);
} //!< \brief Arc tangent. Returns an angle whose tangent is y/x. The signs of x and y are used to determine what quadrant the angle is in. The range of values returned by this function is [-PI, PI]. Results are undefined if x and y are both 0. (From GLM_GTX_compatibility)
template<typename T>
GLM_FUNC_QUALIFIER detail::tvec4<T> atan2(const detail::tvec4<T> & x, const detail::tvec4<T> & y)
{
    return atan(x, y);
} //!< \brief Arc tangent. Returns an angle whose tangent is y/x. The signs of x and y are used to determine what quadrant the angle is in. The range of values returned by this function is [-PI, PI]. Results are undefined if x and y are both 0. (From GLM_GTX_compatibility)

template<typename genType>
bool isfinite(genType const & x); //!< \brief Test whether or not a scalar or each vector component is a finite value. (From GLM_GTX_compatibility)
template<typename valType>
detail::tvec2<bool> isfinite(const detail::tvec2<valType> & x); //!< \brief Test whether or not a scalar or each vector component is a finite value. (From GLM_GTX_compatibility)
template<typename valType>
detail::tvec3<bool> isfinite(const detail::tvec3<valType> & x); //!< \brief Test whether or not a scalar or each vector component is a finite value. (From GLM_GTX_compatibility)
template<typename valType>
detail::tvec4<bool> isfinite(const detail::tvec4<valType> & x); //!< \brief Test whether or not a scalar or each vector component is a finite value. (From GLM_GTX_compatibility)

typedef bool bool1; //!< \brief boolean type with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tvec2<bool> bool2; //!< \brief boolean type with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec3<bool> bool3; //!< \brief boolean type with 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec4<bool> bool4; //!< \brief boolean type with 4 components. (From GLM_GTX_compatibility extension)

typedef bool bool1x1; //!< \brief boolean matrix with 1 x 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x2<bool> bool2x2; //!< \brief boolean matrix with 2 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x3<bool> bool2x3; //!< \brief boolean matrix with 2 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x4<bool> bool2x4; //!< \brief boolean matrix with 2 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x2<bool> bool3x2; //!< \brief boolean matrix with 3 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x3<bool> bool3x3; //!< \brief boolean matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x4<bool> bool3x4; //!< \brief boolean matrix with 3 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x2<bool> bool4x2; //!< \brief boolean matrix with 4 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x3<bool> bool4x3; //!< \brief boolean matrix with 4 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x4<bool> bool4x4; //!< \brief boolean matrix with 4 x 4 components. (From GLM_GTX_compatibility extension)

typedef int int1; //!< \brief integer vector with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tvec2<int> int2; //!< \brief integer vector with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec3<int> int3; //!< \brief integer vector with 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec4<int> int4; //!< \brief integer vector with 4 components. (From GLM_GTX_compatibility extension)

typedef int int1x1; //!< \brief integer matrix with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x2<int> int2x2; //!< \brief integer matrix with 2 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x3<int> int2x3; //!< \brief integer matrix with 2 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x4<int> int2x4; //!< \brief integer matrix with 2 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x2<int> int3x2; //!< \brief integer matrix with 3 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x3<int> int3x3; //!< \brief integer matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x4<int> int3x4; //!< \brief integer matrix with 3 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x2<int> int4x2; //!< \brief integer matrix with 4 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x3<int> int4x3; //!< \brief integer matrix with 4 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x4<int> int4x4; //!< \brief integer matrix with 4 x 4 components. (From GLM_GTX_compatibility extension)

typedef detail::half half1; //!< \brief half-precision floating-point vector with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tvec2<detail::half> half2; //!< \brief half-precision floating-point vector with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec3<detail::half> half3; //!< \brief half-precision floating-point vector with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec4<detail::half> half4; //!< \brief half-precision floating-point vector with 2 components. (From GLM_GTX_compatibility extension)

typedef detail::half half1x1; //!< \brief half-precision floating-point matrix with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x2<detail::half> half2x2; //!< \brief half-precision floating-point matrix with 2 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x3<detail::half> half2x3; //!< \brief half-precision floating-point matrix with 2 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x4<detail::half> half2x4; //!< \brief half-precision floating-point matrix with 2 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x2<detail::half> half3x2; //!< \brief half-precision floating-point matrix with 3 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x3<detail::half> half3x3; //!< \brief half-precision floating-point matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x4<detail::half> half3x4; //!< \brief half-precision floating-point matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x2<detail::half> half4x2; //!< \brief half-precision floating-point matrix with 4 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x3<detail::half> half4x3; //!< \brief half-precision floating-point matrix with 4 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x4<detail::half> half4x4; //!< \brief half-precision floating-point matrix with 4 x 4 components. (From GLM_GTX_compatibility extension)

typedef float float1; //!< \brief single-precision floating-point vector with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tvec2<float> float2; //!< \brief single-precision floating-point vector with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec3<float> float3; //!< \brief single-precision floating-point vector with 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec4<float> float4; //!< \brief single-precision floating-point vector with 4 components. (From GLM_GTX_compatibility extension)

typedef float float1x1; //!< \brief single-precision floating-point matrix with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x2<float> float2x2; //!< \brief single-precision floating-point matrix with 2 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x3<float> float2x3; //!< \brief single-precision floating-point matrix with 2 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x4<float> float2x4; //!< \brief single-precision floating-point matrix with 2 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x2<float> float3x2; //!< \brief single-precision floating-point matrix with 3 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x3<float> float3x3; //!< \brief single-precision floating-point matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x4<float> float3x4; //!< \brief single-precision floating-point matrix with 3 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x2<float> float4x2; //!< \brief single-precision floating-point matrix with 4 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x3<float> float4x3; //!< \brief single-precision floating-point matrix with 4 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x4<float> float4x4; //!< \brief single-precision floating-point matrix with 4 x 4 components. (From GLM_GTX_compatibility extension)

typedef double double1; //!< \brief double-precision floating-point vector with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tvec2<double> double2; //!< \brief double-precision floating-point vector with 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec3<double> double3; //!< \brief double-precision floating-point vector with 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tvec4<double> double4; //!< \brief double-precision floating-point vector with 4 components. (From GLM_GTX_compatibility extension)

typedef double double1x1; //!< \brief double-precision floating-point matrix with 1 component. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x2<double> double2x2; //!< \brief double-precision floating-point matrix with 2 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x3<double> double2x3; //!< \brief double-precision floating-point matrix with 2 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat2x4<double> double2x4; //!< \brief double-precision floating-point matrix with 2 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x2<double> double3x2; //!< \brief double-precision floating-point matrix with 3 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x3<double> double3x3; //!< \brief double-precision floating-point matrix with 3 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat3x4<double> double3x4; //!< \brief double-precision floating-point matrix with 3 x 4 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x2<double> double4x2; //!< \brief double-precision floating-point matrix with 4 x 2 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x3<double> double4x3; //!< \brief double-precision floating-point matrix with 4 x 3 components. (From GLM_GTX_compatibility extension)
typedef detail::tmat4x4<double> double4x4; //!< \brief double-precision floating-point matrix with 4 x 4 components. (From GLM_GTX_compatibility extension)

/// @}
} //namespace glm

#include "compatibility.inl"

#endif //GLM_GTX_compatibility
