Ansification and prototypes.
Changed instances of "int4" to "int32" and "int2" to "int16"
Moved dircode.c and fixed prototype compiles in hd directory
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
removed unnecessary inclusion of sys/types.h
changed to dissolve when redrawing large numbers of samples
normalized drawing order in odUpdate()
changed make_arms() to keep arc length (rather than area) constant
fixed minor oversight in blockend()
changed edge clipping to include boundary and avoid black edges
improved edge precheck added odRedrawAll() routine
fixed odUpdate() for multiple views
made odUpdate() simpler and faster
added presence map for quick check of duplicate pixels
improved sample insertion to take better samples fixed and improved tone mapping
Initial revision
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