101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* rt_raytracer.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: scebula <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/01/03 16:05:36 by scebula #+# #+# */
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/* Updated: 2017/01/10 19:39:23 by scebula ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "rt.h"
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static void init_x_info_color(double *x, t_record **info,
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t_color *color)
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{
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*x = -1;
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*info = NULL;
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*color = set_color(0, 0, 0);
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}
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static t_color calculate_pixel(t_data *d, t_thread *t)
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{
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double x;
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double y;
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t_record *info;
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t_ray cam_ray;
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t_color color;
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init_x_info_color(&x, &info, &color);
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while (++x < d->aa_lvl)
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{
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y = -1;
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while (++y < d->aa_lvl)
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{
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cam_ray = calculate_ray(d, x, y, t);
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info = find_n(cam_ray, d, t);
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if (info)
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{
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info->current_thread = t;
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get_color_at(d, info);
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color_add_nolimit(&color, info->color);
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free_info(info);
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}
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}
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}
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color_divide(&(color), d->dpp);
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return (color);
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}
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static void init_thread_values(t_thread *t)
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{
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t->x = t->num * t->d->width / THREADS;
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t->y = 0;
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t->d->x = 0;
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t->d->y = 0;
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}
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static void *calculate(void *p)
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{
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t_color color;
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t_thread *t;
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double end_x;
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t = (t_thread *)p;
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end_x = (t->num + 1) * t->d->width / THREADS;
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init_thread_values(t);
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while (t->x < end_x)
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{
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while (t->y < t->d->height)
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{
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color = calculate_pixel(t->d, t);
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putpixel(t->x, t->y, get_color(color), t->d->img);
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t->y++;
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t->d->y++;
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}
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t->y = 0;
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t->d->y = 0;
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t->d->x++;
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t->x++;
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}
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pthread_exit(0);
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}
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void raytracer(t_data *d)
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{
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int i;
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i = -1;
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while (++i < THREADS)
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{
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d->th[i].num = i;
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d->th[i].d = (t_data *)d;
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pthread_create(&d->th[i].t, NULL, calculate, &d->th[i]);
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}
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i = -1;
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while (++i < THREADS)
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pthread_join(d->th[i].t, NULL);
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}
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