/*
*  This file is part of RawTherapee.
*
*  Copyright (c) 2012 Oliver Duis <www.oliverduis.de>
*
*  RawTherapee is free software: you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation, either version 3 of the License, or
*  (at your option) any later version.
* 
*  RawTherapee is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _DCP_
#define _DCP_

#include "imagefloat.h"
#include "curves.h"
#include "colortemp.h"
#include "../rtgui/threadutils.h"
#include <glibmm.h>
#include <map>
#include <string>

namespace rtengine {

    class DCPProfile {
        struct HSBModify
        {
            float fHueShift;
            float fSatScale;
            float fValScale;
        };
        struct HSDTableInfo
        {
            int iHueDivisions, iSatDivisions, iValDivisions;
            int iHueStep, iValStep, iArrayCount;
            struct
            {
                float hScale, sScale, vScale;
                int maxHueIndex0, maxSatIndex0, maxValIndex0;
                int hueStep, valStep;
            } pc;
        };

        double mColorMatrix1[3][3],mColorMatrix2[3][3];
        bool hasColorMatrix1, hasColorMatrix2, hasForwardMatrix1, hasForwardMatrix2, hasToneCurve, willInterpolate;
        double mForwardMatrix1[3][3],mForwardMatrix2[3][3];
        double temperature1, temperature2;
        HSBModify *aDeltas1,*aDeltas2,*aLookTable;
        HSDTableInfo DeltaInfo,LookInfo;
        short iLightSource1,iLightSource2;

        AdobeToneCurve toneCurve;

        void dngref_XYCoord2Temperature(const double whiteXY[2], double *temp, double *tint) const;
        void dngref_FindXYZtoCamera(const double whiteXY[2], int preferredIlluminant, double (*xyzToCamera)[3]) const;
        void dngref_NeutralToXY(double neutral[3], int preferredIlluminant, double XY[2]) const;
        void MakeXYZCAM(ColorTemp &wb, double pre_mul[3], double camWbMatrix[3][3], int preferredIlluminant, double (*mXYZCAM)[3]) const;
        const HSBModify* MakeHueSatMap(ColorTemp &wb, int preferredIlluminant, HSBModify **deleteHandle) const;
        void ConvertDNGMatrix2XYZCAM(const double (*mColorMatrix)[3], double (*mXYZCAM)[3]) const;
        void ConvertDNGForwardMatrix2XYZCAM(const double (*mForwardMatrix)[3], double (*mXYZCAM)[3], const double whiteXY[2]) const;
        void HSDApply(const HSDTableInfo &ti, const HSBModify *tableBase, const float hs, const float ss, const float vs, float &h, float &s, float &v) const;

    public:
        DCPProfile(Glib::ustring fname, bool isRTProfile);
        ~DCPProfile();

        bool getHasToneCurve() { return hasToneCurve; }
        void getIlluminants(int &i1, double &temp1, int &i2, double &temp2, bool &willInterpolate_) { i1 = iLightSource1; i2 = iLightSource2; temp1 = temperature1, temp2 = temperature2; willInterpolate_ = willInterpolate; };
        void Apply(Imagefloat *pImg, int preferredIlluminant, Glib::ustring workingSpace, ColorTemp &wb, double pre_mul[3], double camMatrix[3][3], float rawWhiteFac=1, bool useToneCurve=false) const;
        void Apply(Image16 *pImg, int preferredIlluminant, Glib::ustring workingSpace, ColorTemp &wb, double pre_mul[3], double camMatrix[3][3], bool useToneCurve) const;
    };

    class DCPStore {
        MyMutex mtx;

        // these contain standard profiles from RT. keys are all in uppercase, file path is value
        std::map<Glib::ustring, Glib::ustring> fileStdProfiles;
        
        // Maps file name to profile as cache
        std::map<Glib::ustring, DCPProfile*> profileCache;

    public:
        void init(Glib::ustring rtProfileDir);

        bool isValidDCPFileName(Glib::ustring filename) const;

        DCPProfile* getProfile(Glib::ustring filename, bool isRTProfile=false);
        DCPProfile* getStdProfile(Glib::ustring camShortName);
        
        static DCPStore* getInstance();
    };

    #define dcpStore DCPStore::getInstance()
}
#endif