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/*
* Pure Data Packet module. DPD base class implementation.
* Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "pdp_dpd_base.h"
#include "pdp_internals.h"
#define THIS(b) t_pdp_dpd_base *b = (t_pdp_dpd_base *)x
#ifdef __cplusplus
extern "C"
{
#endif
/* PRIVATE METHODS */
/* dpd packet context input handler */
static void _pdp_dpd_base_context_input(t_pdp_dpd_base *b, t_symbol *s, t_floatarg f)
{
int p = (int)f;
int i;
//post ("pdp_dpd_base_context_input: got %s %d", s->s_name, p);
/* sources/sinks have active inlet disabled */
if (b->b_dpd_active_inlet_disabled) return;
/* handle inspect message */
if (s == S_INSPECT){
/* store packet for inspector */
b->b_context_packet = p;
/* add inspector to pdp queue
this is special: it doesn't use a command object */
pdp_dpd_base_queue_command(b, b, b->b_inspector_method, b->b_inspector_callback, 0);
}
/* handle accumulate message */
if (s == S_ACCUMULATE){
/* store context for accumulator methods */
b->b_context_packet = p;
/* call bang */
pdp_dpd_base_bang(b);
}
}
/* default command object (returns self) */
void *_pdp_dpd_base_get_command_object(void *x){return x;}
/* PUBLIC METHODS */
void pdp_dpd_base_queue_command(void *x, void *c, t_pdp_method process,
t_pdp_method callback, int *id)
{
THIS(b);
t_pdp_procqueue *q = pdp_base_get_queue(x);
pdp_procqueue_add(q, c, process, callback, id);
}
/* bang method (propagate context to outlet) : it is not registered as a pd message by default ! */
void pdp_dpd_base_bang(void *x)
{
THIS(b);
int i, id;
void *cobj;
/* move passive pdp packets in place */
pdp_base_movepassive(x);
/* get command object (or use self) */
cobj = b->b_command_factory_method ? (b->b_command_factory_method)(b) : b;
//post(" command object is %x. object is %x", cobj, b);
/* queue acc method & propagate for all outlets */
for (i=b->b_nb_context_outlets; i--;){
/* propagate the context packet to the outlet */
if (b->b_outlet_enable[i]){
pdp_dpd_base_queue_command(x, cobj, b->b_accum_method[i], b->b_accum_callback[i], 0);
outlet_dpd(b->b_context_outlet[i], b->b_context_packet);
}
else{
//post("outlet %d disabled", i);
}
}
/* queue cleanup method */
if (b->b_cleanup_method)
//pdp_procqueue_add(b->b_q, b, b->b_cleanup_method, 0, &b->b_cleanup_queue_id);
pdp_dpd_base_queue_command(x, cobj, b->b_cleanup_method, b->b_cleanup_callback, 0);
/* send communication complete notify */
if (b->b_complete_notify)
(b->b_complete_notify)(x);
}
/* get/set context packet */
int pdp_dpd_base_get_context_packet(void *x){
THIS(b);
return b->b_context_packet;
}
int pdp_dpd_base_move_context_packet(void *x){
THIS(b);
int p = b->b_context_packet;
b->b_context_packet = -1;
return p;
}
void pdp_dpd_base_set_context_packet(void *x, int p){
THIS(b);
pdp_packet_mark_unused(b->b_context_packet);
b->b_context_packet = p;
}
/* add a cleanup callback (called after all propagation is finished) for sources/sinks */
void pdp_dpd_base_add_cleanup(void *x, t_pdp_method cleanup_method, t_pdp_method cleanup_callback)
{
THIS(b);
b->b_cleanup_method = cleanup_method;
b->b_cleanup_callback = cleanup_callback;
//b->b_cleanup_queue_id = -1;
}
/* add a inspector callback */
void pdp_dpd_base_add_inspector(void *x, t_pdp_method inspector_method)
{
THIS(b);
b->b_inspector_method = inspector_method;
//b->b_inspector_queue_id = -1;
}
/* add a context outlet */
t_outlet *pdp_dpd_base_add_outlet(void *x, t_pdp_method accum_method, t_pdp_method accum_callback)
{
THIS(b);
int i = b->b_nb_context_outlets;
if (i < PDP_DPD_MAX_CONTEXT_OUTLETS){
b->b_context_outlet[i] = outlet_new((t_object *)b, &s_anything);
b->b_outlet_enable[i] = 1;
b->b_accum_method[i] = accum_method;
b->b_accum_callback[i] = accum_callback;
//b->b_accum_queue_id[i] = -1;
b->b_nb_context_outlets++;
return b->b_context_outlet[i];
}
else{
post("pdp_dpd_base_add_outlet: no more free outlet slots");
return 0;
}
}
/* destructor */
void pdp_dpd_base_free(void *x)
{
THIS(b);
/* free base */
pdp_base_free(b);
}
void pdp_dpd_base_disable_active_inlet(void *x)
{
THIS(b);
b->b_dpd_active_inlet_disabled = 1;
}
void pdp_dpd_base_enable_outlet(void *x, int outlet, int toggle)
{
THIS(b);
if (outlet >=0 && outlet < PDP_DPD_MAX_CONTEXT_OUTLETS){
b->b_outlet_enable[outlet] = toggle;
}
}
void pdp_dpd_base_register_complete_notify(void *x, t_pdp_method method)
{
THIS(b);
b->b_complete_notify = method;
}
void pdp_dpd_base_register_command_factory_method(void *x, t_pdp_newmethod command_factory_method)
{
THIS(b);
b->b_command_factory_method = command_factory_method;
}
/* init method */
void pdp_dpd_base_init(void *x)
{
THIS(b);
/* super init */
pdp_base_init(b);
/* disable pdp messages on active inlet (dpd messages are used as sync) */
pdp_base_disable_active_inlet(b);
/* init data */
b->b_nb_context_outlets = 0;
b->b_context_packet = -1;
b->b_cleanup_method = 0;
//b->b_cleanup_queue_id = -1;
b->b_inspector_method = 0;
//b->b_inspector_queue_id = -1;
b->b_dpd_active_inlet_disabled = 0;
// default notify == none
b->b_complete_notify = 0;
// default command object getter
b->b_command_factory_method = 0;
}
void pdp_dpd_base_setup(t_class *class)
{
pdp_base_setup(class);
class_addmethod(class, (t_method)_pdp_dpd_base_context_input, gensym("dpd"), A_SYMBOL, A_FLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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