Rgba.inl

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/**<!-------------------------------------------------------------------->
  @file   Rgba.inl
  @author Travis Fischer (fisch0920@gmail.com)
  @author Matthew Jacobs (jacobs.mh@gmail.com)
  @date   Fall 2008

  @brief
     32-bit and 128-bit Rgba structs
  <!-------------------------------------------------------------------->**/

#ifndef MILTON_RGBA_INL_
#define MILTON_RGBA_INL_


inline Rgba32::Rgba32(unsigned char r_, unsigned char g_, 
                      unsigned char b_, unsigned char a_)
   : b(b_), g(g_), r(r_), a(a_)
{ }

inline Rgba32::operator Vector3() const {
   return Vector3(CAP(r / 255.0, 0, 1), 
                  CAP(g / 255.0, 0, 1),  
                  CAP(b / 255.0, 0, 1));
}

inline Rgba32::operator RgbaHDR() const {
   return RgbaHDR::fromVector(*this);
}

inline real_t Rgba32::luminance() const {
   return (0.299 * r + 0.587 * g + 0.11 * b) / 255;
}


inline RgbaHDR::RgbaHDR(real_t r_, real_t g_, 
                        real_t b_, real_t a_)
   : r(r_), g(g_), b(b_), a(a_)
{ }

inline RgbaHDR::operator Vector3() const {
   return Vector3(r, g, b);
}

inline RgbaHDR::operator Rgba32() const {
   return Rgba32::fromVector(*this);
}

inline real_t RgbaHDR::luminance() const {
   return (0.299 * r + 0.587 * g + 0.11 * b);
}

inline RgbaHDR RgbaHDR::operator*(real_t scalar) const {
   return RgbaHDR(r * scalar, g * scalar, b * scalar, a);
}

inline RgbaHDR &RgbaHDR::operator*=(real_t scalar) {
   r *= scalar;
   g *= scalar;
   b *= scalar;
   
   return *this;
}

#endif // MILTON_RGBA_INL_