OpenEuphoria

Re: Weird Error

• Posted by Icy_Viking Apr 05, 2023
• 375 views

Thanks Greg. I had the naming thing wrong. I fixed it. The example works now. I'll keep your tips in mind.

I've also changed the the naming to libSDL2 and such for Linux/FreeBSD platforms. Yes I usually do my development under Windows, but I do have WSL installed, so I can test for Linux.

Updated example

include std/ffi.e 
 
include SDL.e 
include SDL_ttf.e 
 
if SDL_Init(SDL_INIT_VIDEO) = -1 then 
	puts(1,"Failed to init SDL!\n") 
	abort(0) 
end if 
 
atom win = SDL_CreateWindow("Font Ex",10,10,800,600,SDL_WINDOW_SHOWN) 
 
if win = -1 then 
	puts(1,"Failed to create window!\n") 
	abort(0) 
end if 
 
atom ren = SDL_CreateRenderer(win,-1,0) 
 
if ren = -1 then 
	puts(1,"Failed to create renderer!\n") 
	abort(0) 
end if 
 
atom x = TTF_Init() 
 
if x = -1 then 
	puts(1,"Failed to init TTF!\n") 
	abort(0) 
end if 
 
atom font = TTF_OpenFont("arial.ttf",20) 
 
if font = -1 then 
	puts(1,"Failed to open font!\n") 
	abort(0) 
end if 
 
atom r = SDL_SetRenderDrawColor(ren,0,0,0,0) 
atom run = 1 
 
--Color of text (default red) 
--change values to experiment with different colors 
sequence col = {255,0,0,0} 
 
atom h = TTF_RenderText_Solid(font,"Hello World",col) 
atom ht = SDL_CreateTextureFromSurface(ren,h) 
 
atom evt = 0 
atom evt_type = 0 
 
atom key = SDL_GetKeyboardState(NULL) 
 
--allocate struct for position and size of text "Hello World" 
atom rect = allocate_struct(SDL_Rect,{800/4,600/4,200,200}) 
 
evt = allocate_struct(SDL_Event) 
 
while run = 1 do 
 
	while SDL_PollEvent(evt) != 0 do 
	 
		evt_type = peek_type(evt,C_UINT32) 
		 
		if evt_type = SDL_QUIT then 
			run = 0				 
		end if 
		 
	end while 
	 
	--quick and dirty code to close program with ESC key 
	SDL_PumpEvents() 
	if peek(key+SDL_SCANCODE_ESCAPE) > 0 then 
		run = 0 
	end if 
	-- 
	 
	SDL_RenderClear(ren) 
	 
	SDL_RenderCopy(ren,ht,0,rect) 
	 
	SDL_RenderPresent(ren) 
	 
end while 
 
SDL_DestroyRenderer(ren) 
SDL_DestroyWindow(win) 
 
TTF_CloseFont(font) 
 
TTF_Quit() 
SDL_Quit()