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/*
* Pure Data Packet module.
* Copyright (c) by Tom Schouten <tom@zwizwa.be>
*
* 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 <GL/gl.h>
#include "pdp_opengl.h"
#include "pdp_3dp_base.h"
typedef struct pdp_3d_windowcontext_struct
{
t_pdp_3dp_base x_base;
int x_width;
int x_height;
t_outlet *x_eventout;
int x_finish_queue_id[2];
int x_finish_queue_id_current;
} t_pdp_3d_windowcontext;
static void pdp_3d_windowcontext_sendfinish(t_pdp_3d_windowcontext *x)
{
PDP_ASSERT(x);
PDP_ASSERT(x->x_eventout);
outlet_symbol(x->x_eventout, gensym("done"));
}
/* outlet methods */
/* called before the context is propagated */
static void pdp_3d_windowcontext_clearbuffer(t_pdp_3d_windowcontext *x)
{
int p = pdp_3dp_base_get_context_packet(x);
//post("setting up render buffer");
// for multipass rendering
//pdp_packet_3Dcontext_set_subwidth(p, 320);
//pdp_packet_3Dcontext_set_subheight(p, 240);
pdp_packet_3Dcontext_set_rendering_context(p);
pdp_packet_3Dcontext_setup_3d_context(p);
/* clear buffer */
//glScissor(0,0,
// pdp_packet_3Dcontext_subwidth(p),
// pdp_packet_3Dcontext_subheight(p));
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
/* called after context is propagated */
static void pdp_3d_windowcontext_swapbuffer(t_pdp_3d_windowcontext *x)
{
int p = pdp_3dp_base_get_context_packet(x);
//post("displaying render buffer");
//pdp_packet_3Dcontext_set_rendering_context(p);
pdp_packet_3Dcontext_win_swapbuffers(p);
//pdp_packet_3Dcontext_unset_rendering_context(p);
}
void pdp_3d_windowcontext_resize(t_pdp_3d_windowcontext *x, t_floatarg width, t_floatarg height)
{
int w = (int)width;
int h = (int)height;
int p = pdp_3dp_base_get_context_packet(x);
if ((w>0) && (h>0)){
pdp_packet_3Dcontext_win_resize(p, w, h);
x->x_width = w;
x->x_height = h;
}
}
void pdp_3d_windowcontext_open(t_pdp_3d_windowcontext *x)
{
int p = pdp_3dp_base_get_context_packet(x);
if (-1 == p){
p = pdp_packet_new_3Dcontext_win();
pdp_3d_windowcontext_resize(x, x->x_width, x->x_height);
pdp_3dp_base_set_context_packet(x, p);
}
}
void pdp_3d_windowcontext_close(t_pdp_3d_windowcontext *x)
{
t_pdp_procqueue *q = pdp_3dp_base_get_queue(x);
/* flush all pending tasks in the queue */
//post("preflush");
pdp_procqueue_flush(q);
//post("postflush");
/* now it is safe to delete the context packet */
pdp_packet_delete(pdp_3dp_base_move_context_packet(x));
//post("deleted");
}
void pdp_3d_windowcontext_cursor(t_pdp_3d_windowcontext *x, t_floatarg f)
{
int p = pdp_3dp_base_get_context_packet(x);
bool toggle = (f != 0.0f);
pdp_packet_3Dcontext_win_cursor(p, toggle);
}
static void pdp_3d_windowcontext_bang(t_pdp_3d_windowcontext *x)
{
int p;
int cur = x->x_finish_queue_id_current;
t_pdp_list *eventlist;
/* check if at least recent processing chain is done (two chains busy = max pipeline depth) */
if (-1 != x->x_finish_queue_id[cur]){
//post("pdp_3d_windowcontext_bang: bang ignored (previous rendering not finished)");
return;
}
/* create a window context if needed */
pdp_3d_windowcontext_open(x);
/* get events and send to outlet */
p = pdp_3dp_base_get_context_packet(x);
eventlist = pdp_packet_3Dcontext_win_get_eventlist(p);
if (eventlist){
t_pdp_atom *a;
for (a=eventlist->first; a; a=a->next){
outlet_pdp_list(x->x_eventout, a->w.w_list);
}
pdp_tree_free(eventlist);
}
/* bang base */
pdp_3dp_base_bang(x);
/* add a dummy process to the queue for synchro */
pdp_procqueue_add(pdp_3dp_base_get_queue(x), x, 0, 0, &x->x_finish_queue_id[cur]);
x->x_finish_queue_id_current = !cur;
}
static void pdp_3d_windowcontext_free(t_pdp_3d_windowcontext *x)
{
pdp_3d_windowcontext_close(x);
pdp_3dp_base_free(x);
}
t_class *pdp_3d_windowcontext_class;
void *pdp_3d_windowcontext_new(void)
{
/* allocate */
t_pdp_3d_windowcontext *x = (t_pdp_3d_windowcontext *)pd_new(pdp_3d_windowcontext_class);
x->x_width = 320;
x->x_height = 240;
x->x_finish_queue_id[0] = -1;
x->x_finish_queue_id[1] = -1;
x->x_finish_queue_id_current =0;
/* init super: this is mandatory */
pdp_3dp_base_init(x);
pdp_3dp_base_disable_active_inlet(x);
/* set the dpd processing methods & outlets */
pdp_3dp_base_add_outlet(x, (t_pdp_method)pdp_3d_windowcontext_clearbuffer, 0);
pdp_3dp_base_add_cleanup(x, (t_pdp_method)pdp_3d_windowcontext_swapbuffer, (t_pdp_method)pdp_3d_windowcontext_sendfinish);
/* add event outlet */
x->x_eventout = outlet_new((t_object *)x, &s_anything);
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_3d_windowcontext_setup(void)
{
/* create a standard pd class */
pdp_3d_windowcontext_class = class_new(gensym("3dp_windowcontext"), (t_newmethod)pdp_3d_windowcontext_new,
(t_method)pdp_3d_windowcontext_free, sizeof(t_pdp_3d_windowcontext), 0, A_NULL);
/* inherit pdp base class methods */
pdp_3dp_base_setup(pdp_3d_windowcontext_class);
/* register methods */
class_addbang(pdp_3d_windowcontext_class, pdp_3d_windowcontext_bang);
class_addmethod(pdp_3d_windowcontext_class, (t_method)pdp_3d_windowcontext_open, gensym("open"), A_NULL);
class_addmethod(pdp_3d_windowcontext_class, (t_method)pdp_3d_windowcontext_close, gensym("close"), A_NULL);
class_addmethod(pdp_3d_windowcontext_class, (t_method)pdp_3d_windowcontext_resize, gensym("dim"), A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(pdp_3d_windowcontext_class, (t_method)pdp_3d_windowcontext_resize, gensym("size"), A_FLOAT, A_FLOAT, A_NULL);
class_addmethod(pdp_3d_windowcontext_class, (t_method)pdp_3d_windowcontext_cursor, gensym("cursor"), A_FLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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