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#ifndef PCL_CUDA_COMMON_POINT_TYPE_RGB_H_
#define PCL_CUDA_COMMON_POINT_TYPE_RGB_H_

#include <cuda.h>
#include <pcl/cuda/cutil_math.h>

#ifdef RGB
# undef RGB
#endif

namespace pcl
{
namespace cuda
{

  /** \brief Default RGB structure, defined as a union over 4 chars. */
  union RGB
  {
    int rgb;
    struct
    {
      char r;
      char g;
      char b;
      char alpha;
    };

    inline __host__ __device__ RGB () {}
    inline __host__ __device__ RGB (int _rgb) : rgb(_rgb) {}
    inline __host__ __device__ RGB (char _r, char _g, char _b, char _alpha) :
                                       r(_r), g(_g), b(_b), alpha(_alpha) {}

    inline __host__ __device__ bool operator == (const RGB &rhs)
    {
      return (r == rhs.r && g == rhs.g && b == rhs.b && alpha == rhs.alpha);
    }

    inline __host__ __device__ RGB& operator - (RGB &rhs)
    {
      r = -r;
      g = -g;
      b = -b;
      alpha = -alpha;
      return (*this);
    }

    inline __host__ __device__ RGB& operator += (const RGB &rhs)
    {
      r += rhs.r;
      g += rhs.g;
      b += rhs.b;
      alpha += rhs.alpha;
      return (*this);
    }

    inline __host__ __device__ RGB& operator -= (const RGB &rhs)
    {
      r -= rhs.r;
      g -= rhs.g;
      b -= rhs.b;
      alpha -= rhs.alpha;
      return (*this);
    }

    inline __host__ __device__ RGB& operator *= (const RGB &rhs)
    {
      r *= rhs.r;
      g *= rhs.g;
      b *= rhs.b;
      alpha *= rhs.alpha;
      return (*this);
    }

    inline __host__ __device__ RGB& operator /= (const RGB &rhs)
    {
      r /= rhs.r;
      g /= rhs.g;
      b /= rhs.b;
      alpha /= rhs.alpha;
      return (*this);
    }
  };

} // namespace
} // namespace
#endif  //#ifndef PCL_CUDA_COMMON_POINT_TYPE_RGB_H_

