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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* color.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/05/13 11:53:53 by charles #+# #+# */
/* Updated: 2020/05/13 13:00:48 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "scop.h"
#include <string.h>
float *color_new(size_t n)
{
size_t i;
float step;
float *colors;
union u_color c;
if ((colors = malloc(sizeof(float) * (n * 4))) == NULL)
return (NULL);
step = 1.0 / (float)n;
i = 0;
c.r = 0.0;
c.g = 0.0;
c.b = 0.0;
c.a = 1.0;
while (i < n)
{
c.r += step;
c.g += step;
c.b += step;
ft_memcpy(&colors[i * 4], c.data, 4 * sizeof(float));
i++;
}
return (colors);
}
bool color_merge_vertices(t_object *object)
{
size_t i;
float *colors;
float *new_vertices;
if ((colors = color_new(object->vertices_len)) == NULL)
return (false);
if ((new_vertices = malloc(sizeof(float) * (object->vertices_len * 8))) == NULL)
{
free(colors);
return (false);
}
i = 0;
while (i < object->vertices_len)
{
ft_memcpy(&new_vertices[i * 8], &object->vertices[i * 4], 4 * sizeof(float));
ft_memcpy(&new_vertices[i * 8 + 4], &colors[i * 4], 4 * sizeof(float));
i++;
}
free(object->vertices);
object->vertices = new_vertices;
return (true);
}
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