Re: sdl2 and ffi

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  • Posted by ChrisB (moderator) Nov 17, 2022
  • 2205 views

FAO Andy

Hi

You've defined SDL_surface in SDL_surface.e as a define_c_type, and then 

export constant xSDL_GetWindowSurface = define_c_func(sdl,"+SDL_GetWindowSurface",{C_POINTER},SDL_Surface) 
 
public function SDL_GetWindowSurface(atom win) 
	return c_func(xSDL_GetWindowSurface,{win}) 
end function

the function SDL_GetWindowSurface returns a pointer to the SDL_surface, not the actual structure itself, so eu is throwing type errors. 

atom surf = SDL_GetWindowSurface(win) 


D:\EuProgramming\Euphoria4_1\SDL2Wrapper\Examples\WinImage.exw:28 
type_check failure, surf is {7195552,{36'$',{1952061344,{298874067,2684419766,...

So, am I missing a step somewhere?

Cheers

Chris

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