r7737 - trunk/darkplaces

[black at icculus.org]

Author: black
Date: 2007-11-29 15:45:19 -0500 (Thu, 29 Nov 2007)
New Revision: 7737

Modified:
   trunk/darkplaces/cl_gecko.c
   trunk/darkplaces/cl_video.c
   trunk/darkplaces/gl_rmain.c
   trunk/darkplaces/gl_textures.c
   trunk/darkplaces/r_textures.h
Log is attached.
Add TEXF_PERSISTENT and R_PurgeTexture which only frees textures if that flag isn't set. Changed the SkinFrame purging code accordingly (and the default texture creation calls).
Fixed a bug that caused dynamic textures not to survive map switches (LoadExternal would try to load pixel data because ->base was set to NULL - it now restores the pointer in SkinFrame_Find..)

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