Hi all,

I noticed now that the Scanned Synthesis opcodes have changed in
behavior.  It seems now that if a scanned synthesis ID is already used
it now kills csound.  The following code seems to be the reason:

 for ( ; i != NULL; i = i->next) {
      if (i->id == p->id)
        csound->Die(csound, Str("scanu: id %d is already in use"), p->id);
    }

which comes from code that was previously #ifdef'd out but now in use.
 The changes in code seem to assume a different lifetime of scanned
tables too, destroying the table at note end (did I read this
incorrectly?).

This has broken all of my scanned synthesis instruments, and
consequently pieces of mine no longer run.  The instruments were
writen knowingly accessing the same scanned table (not a generally
good idea, but I liked the resultant sound quality).  I understand
that the scanned code was redone to get rid of statics, but I don't
think the change in behavior should have been done.

On the other hand, it also brings up an issue of the scanned
instrument table id.  It seems like somehow that a new opcode would be
useful to find an open table id for scanned synthesis use, so that
there can be a per-instrument table generated.  Otherwise, managing to
find an open ID to pass to scans and scanu would be incredibly
tedious, and changing scanu to return an id if 0 is given would break
instruments and pieces.

Thanks,
steven


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