/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  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 _IMAGEIO_
#define _IMAGEIO_

#define IMIO_SUCCESS               0
#define IMIO_CANNOTREADFILE        1
#define IMIO_INVALIDHEADER         2
#define IMIO_HEADERERROR           3
#define IMIO_READERROR             4
#define IMIO_VARIANTNOTSUPPORTED   5
#define IMIO_FILETYPENOTSUPPORTED  6
#define IMIO_CANNOTWRITEFILE       7

#include "rtengine.h"
#include <glibmm.h>
#include "procparams.h"
#include <libiptcdata/iptc-data.h>
#include "../rtexif/rtexif.h"
#include "imagedimensions.h"
#include "iimage.h"
#include "colortemp.h"

namespace rtengine
{

class ProgressListener;
class Imagefloat;

typedef enum IIO_Sample_Format {
    IIOSF_UNKNOWN        = 0,       // Unknown or Unsupported file type; Has to remain 0
    //IIOSF_SIGNED_INT         ,    // Not yet supported
    IIOSF_UNSIGNED_CHAR  = 1 << 0,
    IIOSF_UNSIGNED_SHORT = 1 << 1,
    //IIOSF_HALF               ,    // OpenEXR & NVidia's Half Float, not yet supported
    IIOSF_LOGLUV24       = 1 << 2,
    IIOSF_LOGLUV32       = 1 << 3,
    IIOSF_FLOAT          = 1 << 4
} IIOSampleFormat;

typedef enum IIO_Sample_Arrangement {
    IIOSA_UNKNOWN,       // Unknown or Unsupported file type
    IIOSA_CHUNKY,
    IIOSA_PLANAR
} IIOSampleArrangement;

typedef enum SensorType {
    ST_NONE,   // use this value if the image is already demosaiced (i.e. not a raw file)
    ST_BAYER,
    ST_FUJI_XTRANS,
    ST_FOVEON,
    //ST_FUJI_EXR
} eSensorType;

class ImageIO : virtual public ImageDatas
{

protected:
    ProgressListener* pl;
    cmsHPROFILE embProfile;
    char* profileData;
    int profileLength;
    char* loadedProfileData;
    bool loadedProfileDataJpg;
    int loadedProfileLength;
    procparams::ExifPairs exifChange;
    IptcData* iptc;
    const rtexif::TagDirectory* exifRoot;
    MyMutex imutex;
    IIOSampleFormat sampleFormat;
    IIOSampleArrangement sampleArrangement;

private:
    void deleteLoadedProfileData( )
    {
        if(loadedProfileData) {
            if(loadedProfileDataJpg) {
                free(loadedProfileData);
            } else {
                delete[] loadedProfileData;
            }
        }

        loadedProfileData = NULL;
    }
public:
    static Glib::ustring errorMsg[6];

    ImageIO () : pl (NULL), embProfile(NULL), profileData(NULL), profileLength(0), loadedProfileData(NULL), loadedProfileDataJpg(false),
        loadedProfileLength(0), iptc(NULL), exifRoot (NULL), sampleFormat(IIOSF_UNKNOWN),
        sampleArrangement(IIOSA_UNKNOWN) {}

    virtual ~ImageIO ();

    void setProgressListener (ProgressListener* l)
    {
        pl = l;
    }

    void                 setSampleFormat(IIOSampleFormat sFormat)
    {
        sampleFormat = sFormat;
    }
    IIOSampleFormat      getSampleFormat()
    {
        return sampleFormat;
    }
    void                 setSampleArrangement(IIOSampleArrangement sArrangement)
    {
        sampleArrangement = sArrangement;
    }
    IIOSampleArrangement getSampleArrangement()
    {
        return sampleArrangement;
    }

    virtual void    getStdImage (ColorTemp ctemp, int tran, Imagefloat* image, PreviewProps pp, bool first, procparams::ToneCurveParams hrp)
    {
        printf("getStdImage NULL!\n");
    }

    virtual int     getBPS      () = 0;
    virtual void    getScanline (int row, unsigned char* buffer, int bps) {}
    virtual void    setScanline (int row, unsigned char* buffer, int bps, float minValue[3] = NULL, float  maxValue[3] = NULL) {}

    virtual bool    readImage   (Glib::ustring &fname, FILE *fh)
    {
        return false;
    };
    virtual bool    writeImage  (Glib::ustring &fname, FILE *fh)
    {
        return false;
    };

    int load (Glib::ustring fname);
    int save (Glib::ustring fname);

    int loadPNG  (Glib::ustring fname);
    int loadJPEG (Glib::ustring fname);
    int loadTIFF (Glib::ustring fname);
    static int getPNGSampleFormat  (Glib::ustring fname, IIOSampleFormat &sFormat, IIOSampleArrangement &sArrangement);
    static int getTIFFSampleFormat (Glib::ustring fname, IIOSampleFormat &sFormat, IIOSampleArrangement &sArrangement);

    int loadJPEGFromMemory (const char* buffer, int bufsize);
    int loadPPMFromMemory(const char* buffer, int width, int height, bool swap, int bps);

    int savePNG  (Glib::ustring fname, int compression = -1, volatile int bps = -1);
    int saveJPEG (Glib::ustring fname, int quality = 100, int subSamp = 3);
    int saveTIFF (Glib::ustring fname, int bps = -1, bool uncompressed = false);

    cmsHPROFILE getEmbeddedProfile ()
    {
        return embProfile;
    }
    void        getEmbeddedProfileData (int& length, unsigned char*& pdata)
    {
        length = loadedProfileLength;
        pdata = (unsigned char*)loadedProfileData;
    }

    void setMetadata (const rtexif::TagDirectory* eroot);
    void setMetadata (const rtexif::TagDirectory* eroot, const rtengine::procparams::ExifPairs& exif, const rtengine::procparams::IPTCPairs& iptcc);
    void setOutputProfile  (char* pdata, int plen);
    MyMutex& mutex ()
    {
        return imutex;
    }
};

}
#endif