#pragma once

#ifndef igs_ifx_common_h

#define igs_ifx_common_h

#ifndef IGS_IFX_COMMON_EXPORT

#define IGS_IFX_COMMON_EXPORT

#endif

#define RGBA_ORDER_OF_TOONZ6

namespace igs {

namespace image {

#if defined RGBA_ORDER_OF_TOONZ6

// Toonz6, or GDI, TGA order

/*	Exsample:

        igs::image::rgba::num order = igs::image::rgba::red;

        igs::image::rgb::num order = igs::image::rgba::red;

  */

namespace rgba {

enum num { blu = 0, gre, red, alp, siz };

}

namespace rgb {

enum num { blu = 0, gre, red, siz };

}

#elif defined RGBA_ORDER_OF_OPENGL

// OpenGL order

namespace rgba {

enum num { red = 0, gre, blu, alp, siz };

}

namespace rgb {

enum num { red = 0, gre, blu, siz };

}

#else

Must be define / DRGBA_ORDER_OF_TOONZ6 or

    / DRGBA_ORDER_OF_OPENGL

#endif

// Direct 3D, Apple Packed Pixel order

// namespace rgba {enum num { alp=0, red, gre, blu, siz }; }

// Direct 3D 10

// namespace rgba {enum num { alp=0, blu, gre, red, siz }; }

template <class t=""></class>

void copy_except_margin(const T *in, const int margin, T *out, const int hh,

                        const int ww, const int cc) {

  const T *p_in = in + margin * (ww + margin * 2) * cc + margin * cc;

  T *pout       = out;

  for (int yy = margin; yy < hh + margin; ++yy, p_in += 2 * margin * cc) {

    for (int xx = margin; xx < ww + margin; ++xx, p_in += cc, pout += cc) {

      for (int zz = 0; zz < cc; ++zz) {

        pout[zz] = p_in[zz];

      }

    }

  }

}

}

namespace color {

template <class t=""></class>

double ref_value(const T *ref, const int cc, const int ref_max,

                 const int ref_mode) {

  if (igs::image::rgba::siz == cc) {

    using namespace igs::image::rgba;

    switch (ref_mode) {

    case 0:

      return static_cast<double>(ref[red]) / ref_max;</double>

      break;

    case 1:

      return static_cast<double>(ref[gre]) / ref_max;</double>

      break;

    case 2:

      return static_cast<double>(ref[blu]) / ref_max;</double>

      break;

    case 3:

      return static_cast<double>(ref[alp]) / ref_max;</double>

      break;

    case 4:

      return /* 輝度(Luminance)(CCIR Rec.601) */

          0.298912 * static_cast<double>(ref[red]) / ref_max +</double>

          0.586611 * static_cast<double>(ref[gre]) / ref_max +</double>

          0.114478 * static_cast<double>(ref[blu]) / ref_max;</double>

      break;

    }

  } else if (igs::image::rgb::siz == cc) {

    using namespace igs::image::rgb;

    switch (ref_mode) {

    case 0:

      return static_cast<double>(ref[red]) / ref_max;</double>

      break;

    case 1:

      return static_cast<double>(ref[gre]) / ref_max;</double>

      break;

    case 2:

      return static_cast<double>(ref[blu]) / ref_max;</double>

      break;

    case 3:

      return /* 輝度(Luminance)(CCIR Rec.601) */

          0.298912 * static_cast<double>(ref[red]) / ref_max +</double>

          0.586611 * static_cast<double>(ref[gre]) / ref_max +</double>

          0.114478 * static_cast<double>(ref[blu]) / ref_max;</double>

      break;

    }

  } else if (1 == cc) {

    return static_cast<double>(ref[0]) / ref_max;</double>

  }

  return 1.0;

}

}

}

#endif /* !igs_ifx_common_h */