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/*
* Copyright 1994-2012 Olivier Girondel
*
* This file is part of lebiniou.
*
* lebiniou 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.
*
* lebiniou 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 lebiniou. If not, see <http://www.gnu.org/licenses/>.
*/
#include "context.h"
#include "spline.h"
#include "particles.h"
u_long id = 1192734840;
u_long options = BE_SFX3D|BEQ_3D|BEQ_PARTICLES|BEQ_NORANDOM;
u_long mode = OVERLAY;
char desc[] = "Space-phase reconstruction with lines";
#define SPAN_SIZE 9
#define CONNECT 1
#if 0
#define MAX_PARTICLES PS_DEFAULT_MAX_PARTICLES
#else
#define MAX_PARTICLES PS_NOLIMIT
#endif
static Particle_System_t *ps = NULL;
static const Point3d_t ORIGIN = { { 0.0, 0.0, 0.0 } };
static void
Delay2_generate(Input_t *input)
{
u_short i;
#define TTL 0.666
#define MUL 0.15
#define COL 255
Point3d_t p;
Particle_t *part = NULL;
pthread_mutex_lock(&input->mutex);
/* Map cubique (x y z) */
p.pos.x = input->data[A_MONO][0];
p.pos.y = input->data[A_MONO][1];
p.pos.z = input->data[A_MONO][2];
part = Particle_new_indexed(TTL, COL, p, p3d_mul(&p, MUL), ORIGIN, 0.0);
Particle_System_add(ps, part);
for (i = 1; i < input->size - 2; i++) {
Point3d_t q;
q.pos.x = p.pos.y;
q.pos.y = p.pos.z;
q.pos.z = input->data[A_MONO][i+2];
p = q;
part = Particle_new_indexed(TTL, COL, p, p3d_mul(&p, MUL), ORIGIN, 0.0);
Particle_System_add(ps, part);
}
pthread_mutex_unlock(&input->mutex);
}
static void
Delay2_init_spline(Spline_t *s)
{
/* init the spline from the particle system */
GSList *p = NULL;
u_long i = 0;
for (p = ps->particles; p != NULL; p = g_slist_next(p), i++) {
Particle_t *part = (Particle_t *)p->data;
if (i > ps->nb_particles)
xerror("FUCK DAMN SHIT i= %li max= %li\n", i, s->nb_cpoints);
s->cpoints[i] = part->pos;
}
}
static void
Delay2_draw_spline(Context_t *ctx, Spline_t *s)
{
u_long i;
Buffer8_t *dst = passive_buffer(ctx);
const Params3d_t *params3d = &ctx->params3d;
Input_t *input = ctx->input;
#if CONNECT
/* with LINES */
for (i = 0; i < s->nb_spoints-1; i++)
draw_line_3d(params3d, dst, &s->spoints[i], &s->spoints[i+1], Input_random_u_char(input));
#else
/* with DOTS */
for (i = 0; i < s->nb_spoints; i++)
set_pixel_3d(params3d, dst, &s->spoints[i], Input_random_u_char(input));
#endif
}
void
create(Context_t *ctx)
{
if (ctx->input == NULL) {
options |= BEQ_DISABLED;
return;
}
ps = Particle_System_new(MAX_PARTICLES);
}
void
destroy(__attribute__ ((unused)) Context_t *ctx)
{
if (ps != NULL)
Particle_System_delete(ps);
}
void
run(Context_t *ctx)
{
if (ctx->input != NULL) {
Buffer8_t *dst = passive_buffer(ctx);
Buffer8_clear(dst);
Particle_System_go(ps);
Delay2_generate(ctx->input);
if (ps->nb_particles) {
Spline_t *spline = NULL;
spline = Spline_new(SPAN_SIZE, ps->nb_particles);
Delay2_init_spline(spline);
Spline_compute(spline);
Delay2_draw_spline(ctx, spline);
Spline_delete(spline);
}
}
}
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