OpenGL Extensions

flat assembler
Message board for the users of flat assembler.

Index > Windows > OpenGL Extensions

Author

Thread

Rbraz

Joined: 08 Oct 2006
Posts: 2

Rbraz 10 Oct 2006, 00:13

Hello,

I'm coding a little OpenGL program in FASM and I need to add "wglSwapIntervalEXT" function and disable/enable vertical synch.

Does anyone know how to convert this C code into FASM ?

Code:

typedef void (APIENTRY *PFNWGLEXTSWAPCONTROLPROC)(int);
static PFNWGLEXTSWAPCONTROLPROC wglSwapIntervalEXT = NULL;

wglSwapIntervalEXT = (PFNWGLEXTSWAPCONTROLPROC)wglGetProcAddress("wglSwapIntervalEXT");

Any help will be much appreciated Smile

Rbraz

10 Oct 2006, 00:13

wisepenguin

Joined: 30 Mar 2005
Posts: 129

wisepenguin 10 Oct 2006, 07:35

havent tested it, but i imagine like this

Code:

wglSwapIntervalEXT_Name db "wglSwapIntervalEXT", 0
wglSwapIntervalEXT rd 1

push wglSwapIntervalEXT_Name
invoke wglGetProcAddress
mov [wglSwapIntervalEXT], eax

; wglSwapIntervalEXT is defined as a function pointer
; to call it...
call [wglSwapIntervalEXT]

10 Oct 2006, 07:35

Rbraz

Joined: 08 Oct 2006
Posts: 2

Rbraz 10 Oct 2006, 15:49

Thank you very much wisepenguin, it works fine Smile

Code:

stdcall [wglSwapIntervalEXT],1  ; to enable OGL vertical sync
stdcall [wglSwapIntervalEXT],0  ; to disable OGL vertical sync

10 Oct 2006, 15:49

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum