Cleaned up the mode coding to not use global variables when decoding a custom alphabet.
Cleaned up the mode coding to not use global variables when decoding a custom alphabet.

This allows this portion of the code to be re-entrant.


git-svn-id: 8dbf393e6e9ab8d4979d29f9a341a98016792aa6@4966 0101bb08-14d6-0310-b084-bc0e0c8e3800

KTXSoftware/theora,KTXSoftware/theora,Distrotech/libtheora,KTXSoftware/theora,Distrotech/libtheora,Distrotech/libtheora,Distrotech/libtheora,Distrotech/libtheora,KTXSoftware/theora,KTXSoftware/theora