SDL_Palette

typedef struct{
  int ncolors;
  SDL_Color *colors;
} SDL_Palette;

ncolors

Number of colors used in this palette

colors

Pointer to SDL_Color structures that make up the palette.

Each pixel in an 8-bit surface is an index into the colors field of the SDL_Palette structure store in SDL_PixelFormat. A SDL_Palette should never need to be created manually. It is automatically created when SDL allocates a SDL_PixelFormat for a surface. The colors values of a SDL_Surfaces palette can be set with the SDL_SetColors.

SDL_Color, SDL_Surface, SDL_SetColors SDL_SetPalette