[Bug 19341] err:wgl error upon FARColony launch

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=19341


Roderick Colenbrander <thunderbird2k at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |thunderbird2k at gmail.com
         Resolution|                            |INVALID




--- Comment #4 from Roderick Colenbrander <thunderbird2k at gmail.com>  2010-03-03 09:29:23 ---
I have downloaded the app and investigated the bug. This are the calls you see:
trace:wgl:wglGetProcAddress (glResizeBuffersMESA)
trace:wgl:wglGetCurrentContext  returning (nil)
trace:wgl:is_extension_supported Checking for extension
'GL_MESA_resize_buffers'
err:wgl:is_extension_supported No OpenGL extensions found, check if your OpenGL
setup is correct!
warn:wgl:wglGetProcAddress Extension 'GL_MESA_resize_buffers' required by
function 'glResizeBuffersMESA' not supported!
trace:wgl:wglGetProcAddress func: 'glResizeBuffersMESA'
trace:wgl:wglGetProcAddress  extension not found in the Linux OpenGL library,
checking against libGL bug with glResizeBuffersM..
warn:wgl:wglGetProcAddress Did not find function glResizeBuffersMESA
(glResizeBuffersMESA) in your OpenGL library !
trace:wgl:wglGetProcAddress (glResizeBuffersMESA)
trace:wgl:wglGetCurrentContext  returning (nil)

It is the game which is checking for the presence of some Mesa extensions.
Since on Windows you don't have these, I think the game has some cross-platform
code for loading OpenGL extensions.

On Windows when you load extensions using wglGetProcAddress an OpenGL context
must be active which is not the case for glXGetProcAddress on X. The game only
loads these two extensions without a context. Later on it loads more and at
that time a context is around.

The 'bug' if you would call it that is in the game itself and it is quite
harmless as it is basically Linux-specific code, so you can just ignore the
Wine messages (they are correct) :)

I'm marking this bug as invalid.

Roderick

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