NAME
        GetGBuffers -- Attempt to allocate ALL buffers of an entire animob.

   SYNOPSIS
        status = GetGBuffers(anOb, rp, db)
        D0                   A0    A1  D0

        bool getgbuffers(struct animob *, struct rastport *, bool);

   FUNCTION
        For each sequence of each component of the animob, allocate memory for:
            SaveBuffer
            BorderLine
            CollMask and ImageShadow (point to same buffer)
            if db is set TRUE (user wants double-buffering) allocate:
                dbufpacket
                BufBuffer

   INPUTS
        anOb = pointer to the animob structure
        rp   = pointer to the current rastport
        db   = double-buffer indicator (set TRUE for double-buffering)

   RESULT
        status = TRUE if the memory allocations were all successful, else FALSE

   BUGS
        If any of the memory allocations fail it does not free the partial
        allocations that did succeed.

   SEE ALSO
        freegbuffers() graphics/gels.h