/*
 *  Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
 *
 *  This program 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 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef _KIS_TIFF_YCBCR_READER_H_
#define _KIS_TIFF_YCBCR_READER_H_

#include "kis_tiff_reader.h"

namespace KisTIFFYCbCr
{
enum Position {
    POSITION_CENTERED = 1,
    POSITION_COSITED = 2
};
}

class KisTIFFYCbCrReaderTarget8Bit : public KisTIFFReaderBase
{
public:
    /**
     * @param hsub horizontal subsampling of Cb and Cr
     * @param hsub vertical subsampling of Cb and Cr
     */
    KisTIFFYCbCrReaderTarget8Bit(KisPaintDeviceSP device, quint32 width, quint32 height, quint8* poses, int8 alphapos, uint8 sourceDepth, uint8 nbcolorssamples, uint8 extrasamplescount,  KoColorTransformation* transformProfile, KisTIFFPostProcessor* postprocessor, uint16 hsub, uint16 vsub, KisTIFFYCbCr::Position position);
    ~KisTIFFYCbCrReaderTarget8Bit();
    virtual uint copyDataToChannels(quint32 x, quint32 y, quint32 dataWidth, KisBufferStreamBase* tiffstream);
    virtual void finalize();
private:
    quint8* m_bufferCb;
    quint8* m_bufferCr;
    quint32 m_bufferWidth, m_bufferHeight;
    uint16 m_hsub;
    uint16 m_vsub;
    KisTIFFYCbCr::Position m_position;
    quint32 m_imageWidth, m_imageHeight;

};

class KisTIFFYCbCrReaderTarget16Bit : public KisTIFFReaderBase
{
public:
    /**
     * @param hsub horizontal subsampling of Cb and Cr
     * @param hsub vertical subsampling of Cb and Cr
     */
    KisTIFFYCbCrReaderTarget16Bit(KisPaintDeviceSP device, quint32 width, quint32 height, quint8* poses, int8 alphapos, uint8 sourceDepth, uint8 nbcolorssamples, uint8 extrasamplescount,  KoColorTransformation* transformProfile, KisTIFFPostProcessor* postprocessor, uint16 hsub, uint16 vsub, KisTIFFYCbCr::Position position);
    ~KisTIFFYCbCrReaderTarget16Bit();
    virtual uint copyDataToChannels(quint32 x, quint32 y, quint32 dataWidth, KisBufferStreamBase* tiffstream);
    virtual void finalize();
private:
    quint16* m_bufferCb;
    quint16* m_bufferCr;
    quint32 m_bufferWidth, m_bufferHeight;
    uint16 m_hsub;
    uint16 m_vsub;
    KisTIFFYCbCr::Position m_position;
    quint32 m_imageWidth, m_imageHeight;

};


#endif
