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/*
* Pure Data Packet module.
* 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 <GL/gl.h>
#include "pdp.h"
#include "pdp_3dp_base.h"
#include "pdp_opengl.h"
typedef struct _pdp_3d_snap
{
t_pdp_3dp_base x_base;
t_pdp_dpd_commandfactory x_cfact;
t_outlet *x_result_outlet;
t_pdp_symbol *x_dest_template;
int x_is_texture;
u32 x_width;
u32 x_height;
int x_auto_snap;
int x_pending_snap;
} t_pdp_3d_snap;
typedef struct _snap_command
{
t_pdp_dpd_command x_base;
t_pdp_3d_snap *x_mother;
int x_context_packet;
int x_result_packet;
int x_active;
} t_snap_command;
/* COMAND METHODS */
static void snap_texture_process(t_snap_command *x)
{
int pt = -1;
int p = x->x_context_packet;
int i;
u32 w,h;
if (x->x_active && pdp_packet_3Dcontext_isvalid(p)){
/* get dest texture sub dims */
w = (x->x_mother->x_width) ? x->x_mother->x_width : pdp_packet_3Dcontext_subwidth(p);
h = (x->x_mother->x_height) ? x->x_mother->x_height : pdp_packet_3Dcontext_subheight(p);
/* texture is a special case */
if (x->x_mother->x_is_texture){
/* create a new texture packet */
pt = pdp_packet_new_texture(w,h,GL_RGB);
if (-1 != pt) {
/* set rendering context */
pdp_packet_3Dcontext_set_rendering_context(p);
/* copy pbuf to new texture */
pdp_packet_texture_make_current(pt);
//glReadBuffer(GL_FRONT); //this is for weird feedback stuff..
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, w, h);
x->x_result_packet = pt;
}
}
/* other type: snap to bitmap first, then convert */
else{
//nvidia driver 4191 bug workaround (w -> multiple of 4)
w &= -4;
pt = pdp_packet_3Dcontext_snap_to_bitmap(p, w, h);
//pt = pdp_packet_new_bitmap_rgb(w, h);
//pdp_packet_print_debug(pt);
x->x_result_packet = pdp_packet_convert_ro(pt, x->x_mother->x_dest_template);
pdp_packet_mark_unused(pt);
}
}
}
static void snap_callback(t_snap_command *x)
{
/* send packet to outlet */
pdp_packet_pass_if_valid(x->x_mother->x_result_outlet, &x->x_result_packet);
pdp_dpd_command_suicide(x);
}
/* PD OBJECT METHODS */
static void pdp_3d_snap_snap(t_pdp_3d_snap *x)
{
x->x_pending_snap = 1;
}
static void pdp_3d_snap_autosnap(t_pdp_3d_snap *x, t_floatarg f)
{
if (f){
x->x_auto_snap = 1;
x->x_pending_snap = 1;
}
else{
x->x_auto_snap = 0;
x->x_pending_snap = 0;
}
}
static void *pdp_3d_snap_get_new_command(t_pdp_3d_snap *x)
{
t_snap_command *c = (t_snap_command *)pdp_dpd_commandfactory_get_new_command(&x->x_cfact);
c->x_mother = x;
c->x_context_packet = pdp_3dp_base_get_context_packet(x);
c->x_result_packet = -1;
c->x_active = x->x_pending_snap;
if (!x->x_auto_snap) x->x_pending_snap = 0;
return (void *)c;
}
t_class *pdp_3d_snap_class;
void pdp_3d_snap_free(t_pdp_3d_snap *x)
{
//pdp_dpd_base_queue_wait(x);
pdp_3dp_base_free(x);
}
void *pdp_3d_snap_new(t_symbol *s, t_floatarg w, t_floatarg h)
{
t_pdp_3d_snap *x = (t_pdp_3d_snap *)pd_new(pdp_3d_snap_class);
/* super init */
pdp_3dp_base_init(x);
/* get destination template */
x->x_dest_template = (s == gensym("")) ? pdp_gensym("texture/*/*") : pdp_gensym(s->s_name);
x->x_is_texture = pdp_type_description_match(x->x_dest_template, pdp_gensym("texture/*/*"));
w = (w < 0) ? 0 : w;
h = (h < 0) ? 0 : h;
x->x_width = w;
x->x_height = h;
x->x_auto_snap = 1;
x->x_pending_snap = 1;
/* issue warning */
if (!x->x_is_texture && !(x->x_width && x->x_height)){
//post("WARNING: 3dp_snap: target is not a texture and dimensions are not set.");
//post("WARNING: using default image size 320x240.");
//x->x_width = 320;
//x->x_height = 240;
}
/* create outlets */
pdp_3dp_base_add_outlet(x, (t_pdp_method)snap_texture_process, (t_pdp_method)snap_callback);
x->x_result_outlet = outlet_new((t_object *)x, &s_anything);
/* init command list */
pdp_dpd_commandfactory_init(&x->x_cfact, sizeof(t_snap_command));
/* register command factory method */
pdp_dpd_base_register_command_factory_method(x, (t_pdp_newmethod)pdp_3d_snap_get_new_command);
return (void *)x;
}
#ifdef __cplusplus
extern "C"
{
#endif
void pdp_3d_snap_setup(void)
{
pdp_3d_snap_class = class_new(gensym("3dp_snap"), (t_newmethod)pdp_3d_snap_new,
(t_method)pdp_3d_snap_free, sizeof(t_pdp_3d_snap), 0, A_DEFSYMBOL, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
pdp_3dp_base_setup(pdp_3d_snap_class);
class_addmethod(pdp_3d_snap_class, (t_method)pdp_3d_snap_snap, gensym("bang"), A_NULL);
class_addmethod(pdp_3d_snap_class, (t_method)pdp_3d_snap_autosnap, gensym("autosnap"), A_FLOAT, A_NULL);
}
#ifdef __cplusplus
}
#endif
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