Re: [gl4java-usergroup] Dynamic loading of fn's

[Sven G. <sgo...@ja...>]

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On Wednesday 11 April 2001 02:57, Steven Hugg wrote:
> Sorry, my question was unclear ...
>
> What I meant: When GL4Java dynamically loads a function for the first
> time (by way of getGLProcAddressHelper) does it call any gl*** functions
> inside of that code?  If it does, this could potentially upset
> glBegin..glEnd blocks.
>

no !

well, you can see, that only glXGetProxAdress is tried to fetched/called ..

in gl4java 2.7.1 (since 2.7.0),
all function pointers are now global and fetched right after loading 
the libraries !

> The problem is that I am experiencing is "invalid operation" when
> calling a command for the *first* time inside of a glBegin..glEnd pair.
> This could be glNormal, or glTexCoord.
>
> I can fix the problem by calling the commands in my initialization
> routine, *outside* of a glBegin..glEnd pair (they do nothing in this
> case except load the function inside GL4Java).
>
> I don't know what's causing the problem .. but if something inside of
> getGLProcAddressHelper (or a function it calls) happened to call
> glGetError internally, that function is prohibited inside of
> glBegin..glEnd and throws an error when glEnd() is called.
>

this problem may be fixed now with 2.7.1 ..

> Food for thought..
>

cheers, sven

> take care,
> Steve


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