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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 = 948640645;
u_long options = BE_SFX3D|BEQ_3D|BEQ_PARTICLES;
u_long mode = OVERLAY;
char desc[] = "Space-phase reconstruction using particles";
#define SPAN_SIZE 9
#define CONNECT 1
static const Point3d_t ORIGIN = { { 0.0, 0.0, 0.0 } };
static Spline_t *s = NULL;
static Particle_System_t *ps = NULL;
static void
Delay1_points(Context_t *ctx)
{
u_short i;
Buffer8_t *dst = passive_buffer(ctx);
const Params3d_t *params3d = &ctx->params3d;
Input_t *input = ctx->input;
Buffer8_clear(dst);
for (i = 0; i < s->nb_spoints; i++) {
Pixel_t color = Input_random_u_char(input);
set_pixel_3d(params3d, dst, &s->spoints[i], color);
}
}
static void
Delay1_lines(Context_t *ctx)
{
u_short i;
Buffer8_t *dst = passive_buffer(ctx);
const Params3d_t *params3d = &ctx->params3d;
Input_t *input = ctx->input;
u_long points;
Buffer8_clear(dst);
points = s->nb_spoints-1;
for (i = 0; i < points; i++) {
Pixel_t color = Input_random_u_char(input);
draw_line_3d(params3d, dst, &s->spoints[i], &s->spoints[i+1], color);
}
}
static void
Delay1_draw(Context_t *ctx)
{
if (CONNECT)
Delay1_lines(ctx);
else
Delay1_points(ctx);
}
static void
Delay1_particles(Context_t *ctx)
{
u_short i;
Input_t *input = ctx->input;
Buffer8_t *dst = passive_buffer(ctx);
Particle_System_go(ps);
for (i = 0; (i < s->nb_spoints) && Particle_System_can_add(ps); i++) {
Particle_t *p = NULL;
float ttl = Input_random_float_range(input, 0.8, 2.0);
/* XXX Input_random_Pixel */
Pixel_t col = Input_random_u_char(input);
p = Particle_new_indexed(ttl, col, s->spoints[i], p3d_mul(&s->spoints[i], 0.25), ORIGIN, 0.0);
Particle_System_add(ps, p);
}
Particle_System_draw(ps, &ctx->params3d, dst);
}
static void
Delay1_init(Context_t *ctx)
{
u_short i;
pthread_mutex_lock(&ctx->input->mutex);
/* Map cubique (x y z) */
s->cpoints[0].pos.x = ctx->input->data[A_MONO][0];
s->cpoints[0].pos.y = ctx->input->data[A_MONO][1];
s->cpoints[0].pos.z = ctx->input->data[A_MONO][2];
for (i = 1; i < s->nb_cpoints; i++) {
s->cpoints[i].pos.x = s->cpoints[i-1].pos.y;
s->cpoints[i].pos.y = s->cpoints[i-1].pos.z;
s->cpoints[i].pos.z = ctx->input->data[A_MONO][i+2];
}
pthread_mutex_unlock(&ctx->input->mutex);
}
void
create(Context_t *ctx)
{
if (ctx->input == NULL) {
options |= BEQ_DISABLED;
return;
}
ps = Particle_System_new(PS_DEFAULT_MAX_PARTICLES * 2);
s = Spline_new(SPAN_SIZE, ctx->input->size - 2);
#ifdef DEBUG
Spline_info(s);
#endif
}
void
destroy(__attribute__ ((unused)) Context_t *ctx)
{
if (ps != NULL)
Particle_System_delete(ps);
if (s != NULL)
Spline_delete(s);
}
void
run(Context_t *ctx)
{
if (s != NULL) {
Delay1_init(ctx);
Spline_compute(s);
Delay1_draw(ctx);
Delay1_particles(ctx);
}
}
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