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//Based on "imgcodecs/src/grfmt_pxm.hpp"
//Written by Dimitrios Katsaros <patcherwork@gmail.com>

#ifndef _OPENCV_PAM_HPP_
#define _OPENCV_PAM_HPP_

#ifdef HAVE_IMGCODEC_PXM

#include "grfmt_base.hpp"
#include "bitstrm.hpp"

namespace cv
{

class PAMDecoder CV_FINAL : public BaseImageDecoder
{
public:

    PAMDecoder();
    virtual ~PAMDecoder() CV_OVERRIDE;

    bool  readData( Mat& img ) CV_OVERRIDE;
    bool  readHeader() CV_OVERRIDE;

    size_t signatureLength() const CV_OVERRIDE;
    bool checkSignature( const String& signature ) const CV_OVERRIDE;
    ImageDecoder newDecoder() const CV_OVERRIDE;

protected:

    RLByteStream    m_strm;
    int m_maxval, m_channels, m_sampledepth, m_offset,
        selected_fmt;
    bool bit_mode;
};


class PAMEncoder CV_FINAL : public BaseImageEncoder
{
public:
    PAMEncoder();
    virtual ~PAMEncoder() CV_OVERRIDE;

    bool  isFormatSupported( int depth ) const CV_OVERRIDE;
    bool  write( const Mat& img, const std::vector<int>& params ) CV_OVERRIDE;

    ImageEncoder newEncoder() const CV_OVERRIDE;
};

}

#endif

#endif /* _OPENCV_PAM_HPP_ */