Relate number of entries in shade4 stream to read bytes, not buffer size.
Relate number of entries in shade4 stream to read bytes, not buffer size.

darcs-hash:20080821095242-86a4e-58e514d3fb50cfd0e2231dd6ab81acd884919d1c.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf