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;; This file is evaluated (not (load)-ed) right before the file defined in the k_guile object in pd is evaluated or the
;; reload message has been sent. (see k_guile.c/k_guile_new)
;; Kjetil S. Matheussen, 2004.
;;
;;/* This program is free software; you can redistribute it and/or */
;;/* modify it under the terms of the GNU General Public License */
;;/* as published by the Free Software Foundation; either version 2 */
;;/* of the License, or (at your option) any later version. */
;;/* */
;;/* This program is distributed in the hope that it will be useful, */
;;/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
;;/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
;;/* GNU General Public License for more details. */
;;/* */
;;/* You should have received a copy of the GNU General Public License */
;;/* along with this program; if not, write to the Free Software */
;;/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
;;/* */
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Instance data
;;
;;
(define pd-num-inlets 1)
(define pd-num-outlets 0)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Argument checking
;;
;;
(define (pd-legaloutlet outlet-num)
(if (and (< outlet-num pd-num-outlets) (>= outlet-num 0))
#t
(begin
(pd-display "outlet-num out of range")
#f)))
(define (pd-legalinlet inlet-num)
(if (and (< inlet-num pd-num-inlets) (>= inlet-num 0))
#t
(begin
(pd-display "inlet-num out of range")
#f)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Inlets
;;
;;
(define pd-inlet-vector (make-vector 1 '()))
(define pd-inlet-anyvector (make-vector 1 '()))
;; This function is called from the C side when the object receives something on an inlet.
(define (pd-inlet-func inlet-num symbol args)
(let ((inlet-func (assq symbol
(vector-ref pd-inlet-vector
inlet-num))))
(if (not inlet-func)
(begin
(set! inlet-func (assq 'any
(vector-ref pd-inlet-vector inlet-num)))
(set! args (cons symbol args))))
(if inlet-func
(apply (cadr inlet-func) args)
(pd-display "No function defined for handling \'" symbol " to inlet " inlet-num))))
(define (pd-inlet inlet-num symbol func)
(if (not (procedure? func))
(pd-display "Wrong argument to pd-inlet: " func " is not a procedure")
(if (and (pd-check-number inlet-num "pd-inlet")
(pd-legalinlet inlet-num))
(let ((inlet-funcs (vector-ref (if (eq? symbol 'any)
pd-inlet-anyvector
pd-inlet-vector)
inlet-num)))
(vector-set! pd-inlet-vector
inlet-num
(cons (list symbol func)
inlet-funcs))))))
(define (pd-inlets new-num-inlets)
(let ((num-inlets (if (pd-c-inited? pd-instance)
(pd-c-get-num-inlets pd-instance)
new-num-inlets)))
(if (pd-check-number num-inlets "pd-inlets")
(if (<= num-inlets 0)
(pd-display "num-inlets must be greater than 0, not " num-inlets)
(begin
(set! pd-num-inlets num-inlets)
(set! pd-inlet-vector (make-vector num-inlets '()))
(pd-c-inlets pd-instance num-inlets))))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Outlets
;;
;;
(define (pd-outlets new-num-outlets)
(let ((num-outlets (if (pd-c-inited? pd-instance)
(pd-c-get-num-outlets pd-instance)
new-num-outlets)))
(if (pd-check-number num-outlets "pd-outlets")
(if (<= num-outlets 0)
(pd-display "num-outlets must be greater than 0, not " num-outlets)
(begin
(set! pd-num-outlets num-outlets)
(pd-c-outlets pd-instance num-outlets))))))
(define (pd-outlet outlet-num firstarg . args)
(if (pd-legaloutlet outlet-num)
(cond ((> (length args) 0) (pd-c-outlet-list pd-instance outlet-num issymbol (cons firstarg args)))
((list? firstarg) (pd-c-outlet-list pd-instance outlet-num firstarg))
((number? firstarg) (pd-c-outlet-number pd-instance outlet-num firstarg))
((string? firstarg) (pd-c-outlet-string pd-instance outlet-num firstarg))
((eq? 'bang firstarg) (pd-c-outlet-bang pd-instance outlet-num))
((symbol? firstarg) (pd-c-outlet-symbol pd-instance outlet-num firstarg))
(else
(pd-display "Unknown argument to pd-outlet-or-send:" firstarg)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Bindings
;;
;;
;; We must have our own local bind/unbind functions to be able to clean up automaticly.
(define pd-local-bindings '())
(define (pd-bind symbol func)
(set! pd-local-bindings (pd-bind-do symbol func pd-local-bindings)))
(define (pd-unbind symbol)
(set! pd-local-bindings (pd-unbind-do symbol pd-local-bindings)))
(define (pd-unbind-all)
(if (not (null? pd-local-bindings))
(begin
(pd-unbind (car (car pd-local-bindings)))
(pd-unbind-all))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Cleanup
;;
;;
(define pd-destroy-func #f)
(define (pd-set-destroy-func thunk)
(if (not (procedure? thunk))
(pd-display "Wrong argument to pd-set-destroy-func: " thunk " is not a procedure.")
(set! pd-destroy-func thunk)))
;; This func is called from the C-side.
(define (pd-cleanup-func)
(if pd-destroy-func
(begin
(pd-destroy-func)
(set! pd-destroy-func #f)))
(pd-unbind-all))
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