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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 cuda
  } // namespace pcl
  #endif //#ifndef PCL_CUDA_COMMON_POINT_TYPE_RGB_H_
  