[Plib-devel] build fix for msvc8 and texture loading improovement

[Mathias <Mat...@gm...>]

Hi all,

I have two patches attached here. Credits belong to Olaf Flebbe and our=20
discussions during meals ...
:)

1. The const-char-hack-removal.diff is required to build on windows using t=
he=20
current msvc8 compiler. It corrects the usage of the const qualifier and=20
obsolete some ifdef's in cases where correct usage of consts will make it=20
work without preprocessor.

2. The texture-size-limit.diff which implements an API to limit the maximum=
=20
texture size which is thrown into OpenGL.
Mipmaps are computed as usual, but if the size of a mipmap level exceeds th=
e=20
maximum texture size it is just not handed off to OpenGL.
The default behavour is unchanged until you call ssgSetTextureMaxSize with =
a=20
positive argument from your application to activate that limit.
We have also a patch for flightgear in the works which makes use of that=20
feature.

I for myself used a similar but hardcoded approach to be able to run=20
flightgear on my notebook with 32MB gpu memory. Without such a limit=20
flightgear just creeps instead of runs ...

Please apply!

    Many thanks

               Mathias

=2D-=20
Mathias Fr=F6hlich, email: Mat...@gm...