OpenEuphoria

1. Fresh Pair of Eyes

• Posted by Icy_Viking Apr 06, 2023
• 600 views

Hello all,

I was recently working on a wrapper for Tilengine. However, it seems that the library or DLL is not being loaded at all. I can't figure out why. The code itself is fine. The program runs, but is returning 0 and -1, thus the DLL is not being loaded. Maybe I'm overlooking something simple?

include std/ffi.e 
include std/machine.e 
include std/os.e 
include std/math.e 
 
public atom tile = 0 
 
ifdef WINDOWS then 
	tile = open_dll("Tilengine.dll") --This is how its spelled from the actual DLL  
	? tile --returns 0 
	elsifdef LINUX or FREEBSD then 
	tile = open_dll("libTilengine.so") 
end ifdef 
 
export constant xTLN_Init = define_c_func(tile,"+TLN_Init",{C_INT,C_INT,C_INT,C_INT,C_INT},C_INT) 
 
? xTLN_Init --returns -1 
 
public function TLN_Init(atom hres,atom vres,atom numlayers,atom numsprites,atom numani) 
	return c_func(xTLN_Init,{hres,vres,numlayers,numsprites,numani}) 
end function 

3. Re: Fresh Pair of Eyes

• Posted by Icy_Viking Apr 06, 2023
• 577 views

Ok I got it. It needed SDL2.dll. I added that to the project directory, but I'm still getting 0 and -1 for the return values. I'm using the 64-bit DLLs for both Tilengine and SDL2.

5. Re: Fresh Pair of Eyes

• Posted by Icy_Viking Apr 06, 2023
• 574 views

Yes. I looked through it and no errors come up and it says the DLL were loaded successfully. I've made a zip of my project so far. Maybe there is something I'm overlooking or some weird bug?

https://katfile.com/nl9g9d6tnpux/Tilengine.zip.html

OK, I think the DLL may not be loaded or opened using the open_dll() command.

7. Re: Fresh Pair of Eyes

• Posted by ghaberek (admin) Apr 07, 2023
• 531 views

Strange, it loads correctly for me. I downloaded my own copies of Tilengine.dll and SDL2.dll but the SHA256 hash matches for both files in your zip:

c2325ce01734ee1abe0f2a040d2ca8551012be3820a1fb2f32530d872df19517 SDL2.dll 
e4a3a5739512e78428e9062b63e8f9ac9da811c5c4b06b81bb94849804f77158 Tilengine.dll 

I put both of these files in C:\Euphoria\bin. Are you sure you're using 64-bit eui.exe when testing this?

You could try manually loading SDL2 first. This would help determine which library is actually causing the problem.

public atom sdl2 = 0 
public atom tile = 0 
 
ifdef WINDOWS then 
    sdl2 = open_dll("SDL2.dll") 
    tile = open_dll("Tilengine1.dll") 
elsifdef LINUX or FREEBSD then 
    sdl2 = open_dll("libSDL2-2.0.so.0") 
    tile = open_dll("libTilengine.so") 
end ifdef 
 
? sdl2 
? tile 

It's throttled to 100 KB/sec but the file is only ~900 KB so after jumping through the captcha it only takes a few seconds to download.

-Greg