[opendemo-devel] zlib problems

[Conor D. <co...@ma...>]

Hello,

I've pretty much given up on getting zlib to work with qvm files, especially
with the garbage return value bug. I started to do a bunch of hacks the
stored return values in global variables, but that addresses the symptoms
and not the problem. Anyway, in my testing I've found that the qvm maximum
stack size seems to be 512K (after that quake3 crashes). I suspected that
zlib was exceeding the maximum stack size, but with 512K it looks doubtful.

Instead of zlib, maybe we should use a binary XML format similar to wbxml?
It could even speed things up, since we could store numbers in binary
instead of text.

I reduced the number of demo states from 16 to 1, which reduced the memory
footprint from 11 megs to 3 megs. The file format is unchanged for now (I
plan to mess with it soon).

-Conor