[Gtkradiant] [Bug 575] less texture load, binding low res versions

[EvilTypeGuy]

On Sun, 2002-09-22 at 17:37, bugzilla-daemon@zerowing.idsoftware.com
> the use of good texture compression settings, and fixing of texture
mipmapping
> gigantic memory leaks by EvilTypeGuy has brought memory usage by nearly a factor 6

I would like to apologize for the mipmap memory leak, that one was my
fault, it was due to the new code that I added to GtkRadiant to improve
the quality of mipmaps on the win32 platform. It will encourage me to
double check memory usage after I make changes like that to ensure I
haven't introduced a memory leak.

On a side note, I hope everyone thinks the mipmap quality is
substantially better since I made that change for mipmaps...

Thanks to LordHavoc for the resampling code and the idea...

-eviltypeguy