Re: Add wglGetExtensionsStringARB to opengl

[Michael Schlüter]

Hi Lionel,

On Sat, 2003-05-03 at 22:44, Lionel Ulmer wrote:
> > this patch adds wglGetExtensionsStringARB to the opengl.dll. I don't
> > know if it really does all in the proper way. So somebody with more
> > opengl experiences should take a look at the patch before including it.
>
> Well, I think the best way would be to do something like that :
> Index: dlls/opengl32/opengl32.spec
>
> RCS file: /home/wine/wine/dlls/opengl32/opengl32.spec,v
> retrieving revision 1.19
> diff -u -r1.19 opengl32.spec
> --- dlls/opengl32/opengl32.spec 20 Mar 2003 03:53:13 -0000      1.19
> +++ dlls/opengl32/opengl32.spec 3 May 2003 20:41:57 -0000
> @@ -6,6 +6,7 @@
>  @  stdcall wglGetCurrentContext()
>  @  stdcall wglGetCurrentDC()
>  @  stdcall wglGetExtensionsStringEXT()
> +@  stdcall wglGetExtensionsStringARB() wglGetExtensionsStringEXT
>  @  stdcall wglGetLayerPaletteEntries(long long long long ptr)
>  @  stdcall wglGetProcAddress(str)
>  @  stdcall wglMakeCurrent(long long)
>
> Could you try if this works for you ?

didn't work:

trace:opengl:X11DRV_ChoosePixelFormat (0x403942a0,0x40dd1bd4)
  - size / version : 40 / 1
  - dwFlags : PFD_DOUBLEBUFFER PFD_DRAW_TO_WINDOW PFD_SUPPORT_OPENGL
  - iPixelType : PFD_TYPE_RGBA
  - Color   : 16
  - Alpha   : 0
  - Accum   : 0
  - Depth   : 16
  - Stencil : 0
  - Aux     : 0
  - iLayerType : PFD_MAIN_PLANE
trace:opengl:X11DRV_ChoosePixelFormat Found visual : 0x3c0b8160 -
returns 1
trace:opengl:X11DRV_SetPixelFormat (0x403942a0,1,0x40dd1bd4)
trace:opengl:wglCreateContext (0x12c)
trace:opengl:wglCreateContext  creating context 0x40394338 (GL context
creation delayed)
trace:opengl:wglMakeCurrent (0x12c,0x40394338)
trace:opengl:wglMakeCurrent  created a delayed OpenGL context
(0x3c0bd990)
trace:opengl:wglMakeCurrent  returning True
trace:opengl:wine_glGetString (7939)
trace:opengl:wglGetProcAddress (wglGetExtensionsStringARB)
trace:opengl:wglGetProcAddress  found function in 'standard' OpenGL
functions (0x43e5cca8)
trace:opengl:wglGetExtensionsStringEXT () returning ""
trace:opengl:wglMakeCurrent ((nil),(nil))
trace:opengl:wglMakeCurrent  returning True
trace:opengl:wglDeleteContext ((nil))
warn:opengl:wglDeleteContext Error deleting context !

Looks like it needs some extensions.
> Basically, your patch is wrong because you return OpenGL extensions whereas
> this function should return WGL extensions (and as we do not support any for
> now, we return an empty string).

I thought that, but it was working and I've not much experiences with
opengl.

Bye, Michael