sdlGetRgb function
void
sdlGetRgb()
Get RGB values from a pixel in the specified format.
This function uses the entire 8-bit 0..255
range when converting color
components from pixel formats with less than 8-bits per RGB component
(e.g., a completely white pixel in 16-bit RGB565 format would return 0xff,
0xff, 0xff
not 0xf8, 0xfc, 0xf8
).
\param pixel a pixel value \param format an SDL_PixelFormat structure describing the format of the pixel \param r a pointer filled in with the red component \param g a pointer filled in with the green component \param b a pointer filled in with the blue component
\since This function is available since SDL 2.0.0.
\sa SDL_GetRGBA \sa SDL_MapRGB \sa SDL_MapRGBA
extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel, const SDL_PixelFormat * format, Uint8 * r, Uint8 * g, Uint8 * b)
Implementation
void sdlGetRgb(int pixel, Pointer<SdlPixelFormat> format, Pointer<Uint8> r,
Pointer<Uint8> g, Pointer<Uint8> b) {
final sdlGetRgbLookupFunction = libSdl2.lookupFunction<
Void Function(Uint32 pixel, Pointer<SdlPixelFormat> format,
Pointer<Uint8> r, Pointer<Uint8> g, Pointer<Uint8> b),
void Function(int pixel, Pointer<SdlPixelFormat> format, Pointer<Uint8> r,
Pointer<Uint8> g, Pointer<Uint8> b)>('SDL_GetRGB');
return sdlGetRgbLookupFunction(pixel, format, r, g, b);
}