/*

     File: CConeResponseDomain.mm

 Abstract: 

 Utility class for mapping CIE XYZ white point coordinates into cone response domain space.

  Version: 1.2

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 */

//---------------------------------------------------------------------------

#import <cmath>

#import <iostream>

//---------------------------------------------------------------------------

#import "CEnums.h"

#import "CCIEXYZ.h"

//---------------------------------------------------------------------------

#import "CBradfordAdaptation.h"

#import "CConeResponseDomain.h"

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Private - Data Structures - Cone Response Domain

//---------------------------------------------------------------------------

template <typename Type>

struct Color::ConeResponseDomainStruct

{

    bool mbD65WhitePoints;

    Math::Vector3<Type> m_WhitePoint[2];

    Math::Vector3<Type> m_SVector;

    Math::Matrix3<Type> m_SMatrix;

}; // ConeResponseDomainStruct

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Private - Utilities - White Point Transformation

//---------------------------------------------------------------------------

template <typename Type>

static void CConeResponseDomainGetSrcWhitePoint(ColorSyncProfileRef pProfile,

                                                Color::ConeResponseDomainStruct<Type> *pSCRD)

{

    Color::CIE::XYZ<Type> colorants(pProfile);

    pSCRD->m_WhitePoint[0] = colorants.GetColorantWhitePoint();

    Math::Vector3<Type> delta = diff(pSCRD->m_WhitePoint[0], pSCRD->m_WhitePoint[1]);

    pSCRD->mbD65WhitePoints = ( delta.x <= Type(1E-4) )

    && ( delta.y <= Type(1E-4) )

    && ( delta.z <= Type(1E-4) );

} // CConeResponseDomainGetSrcWhitePoint

//---------------------------------------------------------------------------

template <typename Type>

static void CConeResponseDomainGetSrcWhitePoint(const CGDirectDisplayID nDisplayID,

                                                Color::ConeResponseDomainStruct<Type> *pSCRD)

{

    ColorSyncProfileRef  pProfile = ColorSyncProfileCreateWithDisplayID( nDisplayID );

    if( pProfile != NULL )

    {

        CConeResponseDomainGetSrcWhitePoint<Type>(pProfile, pSCRD);

        CFRelease(pProfile);

        pProfile = NULL;

    } // if

} // CConeResponseDomainGetSrcWhitePoint

//---------------------------------------------------------------------------

template <typename Type>

static void CConeResponseDomainSetScale(Color::ConeResponseDomainStruct<Type> *pSCRD)

{

    if( !pSCRD->mbD65WhitePoints )

    {

        Color::BradfordAdaptation<Type> BAM(1);

        Math::Matrix3<Type> M = BAM.GetBradfordAdaptation();

        Math::Vector3<Type> s = M * pSCRD->m_WhitePoint[0];

        Math::Vector3<Type> d = M * pSCRD->m_WhitePoint[1];

        pSCRD->m_SVector.x = d.x / s.x;

        pSCRD->m_SVector.y = d.y / s.y;

        pSCRD->m_SVector.z = d.z / s.z;

    } // if

    else

    {

        pSCRD->m_SVector.x = Type(1);

        pSCRD->m_SVector.y = Type(1);

        pSCRD->m_SVector.z = Type(1);

    } // else

    pSCRD->m_SMatrix = Math::diag(pSCRD->m_SVector);

} // CConeResponseDomainSetScale

//---------------------------------------------------------------------------

//

// For D65 standard observer and starting with CIE xy: { 0.312727, 0.329023 }

//

//---------------------------------------------------------------------------

template <typename Type>

static void CConeResponseDomainGetDstWhitePoint(Color::ConeResponseDomainStruct<Type> *pSCRD)

{

    static Math::Vector2<Type> D65(Type(0.312727), Type(0.329023));

    pSCRD->m_WhitePoint[1].x = D65.x / D65.y;

    pSCRD->m_WhitePoint[1].y = Type(1);

    pSCRD->m_WhitePoint[1].z = (Type(1) - D65.x - D65.y) / D65.y;

} // CConeResponseDomainGetDstWhitePoint

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Private - Utilities - Constructors

//---------------------------------------------------------------------------

template <typename Type>

static Color::ConeResponseDomainStruct<Type> *CConeResponseDomainCreate(ColorSyncProfileRef pProfile)

{

    Color::ConeResponseDomainStruct<Type> *pSCRD = NULL;

    if( pProfile != NULL )

    {

        pSCRD = new Color::ConeResponseDomainStruct<Type>;

        if( pSCRD != NULL )

        {

            CConeResponseDomainGetDstWhitePoint<Type>(pSCRD);

            CConeResponseDomainGetSrcWhitePoint<Type>(pProfile,pSCRD);

            CConeResponseDomainSetScale<Type>(pSCRD);

        } // if

    } // if

    return pSCRD;

} // CConeResponseDomainCreate

//---------------------------------------------------------------------------

template <typename Type>

static Color::ConeResponseDomainStruct<Type> *CConeResponseDomainCreate(const CGDirectDisplayID nDisplayID)

{

    Color::ConeResponseDomainStruct<Type> *pSCRD = new Color::ConeResponseDomainStruct<Type>;

    if( pSCRD != NULL )

    {

        CConeResponseDomainGetDstWhitePoint<Type>(pSCRD);

        CConeResponseDomainGetSrcWhitePoint<Type>(nDisplayID,pSCRD);

        CConeResponseDomainSetScale<Type>(pSCRD);

    } // if

    return pSCRD;

} // CConeResponseDomainCreate

//---------------------------------------------------------------------------

template <typename Type>

static Color::ConeResponseDomainStruct<Type> *CConeResponseDomainCreate()

{

    return CConeResponseDomainCreate<Type>(CGMainDisplayID());

} // CConeResponseDomainCreate

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Destructor

//---------------------------------------------------------------------------

template <typename Type>

static void CConeResponseDomainDelete(Color::ConeResponseDomainStruct<Type> *pSCRD)

{

    if( pSCRD != NULL )

    {

        delete pSCRD;

        pSCRD = NULL;

    } // if

} // Destructor

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Private - Utilities - Copy Constructor

//---------------------------------------------------------------------------

template <typename Type>

static Color::ConeResponseDomainStruct<Type> *CConeResponseDomainCreateCopy(const Color::ConeResponseDomainStruct<Type> * const pSCRDSrc)

{

    Color::ConeResponseDomainStruct<Type> *pSCRDDst = NULL;

    if( pSCRDSrc != NULL )

    {

        pSCRDDst = new Color::ConeResponseDomainStruct<Type>;

        if( pSCRDDst != NULL )

        {

            pSCRDDst->m_WhitePoint[0] = pSCRDSrc->m_WhitePoint[0];

            pSCRDDst->m_WhitePoint[1] = pSCRDSrc->m_WhitePoint[1];

            pSCRDDst->m_SVector = pSCRDSrc->m_SVector;

            pSCRDDst->m_SMatrix = pSCRDSrc->m_SMatrix;

        } // if

    } // if

    return pSCRDDst;

} // CConeResponseDomainCreateCopy

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Constructors

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::ConeResponseDomain()

{

    mpSCRD = CConeResponseDomainCreate<Type>();

} // Constructor

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::ConeResponseDomain( const CGDirectDisplayID nDisplayID )

{

    mpSCRD = CConeResponseDomainCreate<Type>(nDisplayID);

} // Constructor

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::ConeResponseDomain( ColorSyncProfileRef pDisplayProfile )

{

    mpSCRD = CConeResponseDomainCreate<Type>(pDisplayProfile);

} // Constructor

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Destructor

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::~ConeResponseDomain()

{

    CConeResponseDomainDelete<Type>(mpSCRD);

} // Destructor

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Copy Constructor

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::ConeResponseDomain( const Color::ConeResponseDomain<Type> &rCRD )

{

    mpSCRD = CConeResponseDomainCreateCopy<Type>(rCRD.mpSCRD);

} // Copy Constructor

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type>::ConeResponseDomain( const Color::ConeResponseDomain<Type> * const pCRD )

{

    if( pCRD != NULL )

    {

        mpSCRD = CConeResponseDomainCreateCopy<Type>(pCRD->mpSCRD);

    } // if

} // Copy Constructor

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Assignment Operator

//---------------------------------------------------------------------------

template <typename Type>

Color::ConeResponseDomain<Type> &Color::ConeResponseDomain<Type>::operator=(const Color::ConeResponseDomain<Type> &rCRD)

{

    if( ( this != &rCRD ) && ( rCRD.mpSCRD != NULL ) )

    {

        CConeResponseDomainDelete<Type>(mpSCRD);

        mpSCRD = CConeResponseDomainCreateCopy<Type>(rCRD.mpSCRD);

    } // if

    return *this;

} // ConeResponseDomain::operator=

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Public - Accessors

//---------------------------------------------------------------------------

template <typename Type>

const Math::Vector3<Type> &Color::ConeResponseDomain<Type>::GetScaleVector() const

{

    return mpSCRD->m_SVector;

} // GetScaleVector

//---------------------------------------------------------------------------

template <typename Type>

const Math::Matrix3<Type> &Color::ConeResponseDomain<Type>::GetScaleMatrix() const

{

    return mpSCRD->m_SMatrix;

} // GetScaleMatrix

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------

#pragma mark -

#pragma mark Template Implementations - Cone Response Domain

//---------------------------------------------------------------------------

template class Color::ConeResponseDomain<float>;

template class Color::ConeResponseDomain<double>;

//---------------------------------------------------------------------------

//---------------------------------------------------------------------------