libtthimage/Lib/combine_rnd.c
2022-06-26 12:22:12 +02:00

105 lines
2.1 KiB
C

/*
combine_rnd.c random effects
============= --------------
made by Thierry Boudet, aka "Oulala", aka "Tonton Th".
*/
#include <stdio.h>
#include <stdlib.h>
#include "tthimage.h"
/*::------------------------------------------------------------------::*/
/*
* on va prendre au hasard un point sur une des deux images
* le parametre 'yo' doit etre entre 0 et 10000
*/
int
Image_combine_random_point(Image_Desc *s1, Image_Desc *s2, Image_Desc *d,
int yo)
{
int foo, x, y, r, g, b;
if ( (foo=Image_compare_desc(s1, s2)) )
{
fprintf(stderr, "%s: sources are differents (%d)\n", __func__, foo);
return foo;
}
if ( (foo=Image_compare_desc(s1, d)) )
{
fprintf(stderr, "%s: destination different (%d)\n", __func__, foo);
return foo;
}
if (yo > 10000) yo = 10000;
else if (yo < 0) yo = 0;
for (y=0; y<s1->height; y++)
{
for (x=0; x<s1->width; x++)
{
if ( (rand()%10000) > yo )
{
r = (s1->Rpix[y])[x];
g = (s1->Gpix[y])[x];
b = (s1->Bpix[y])[x];
}
else
{
r = (s2->Rpix[y])[x];
g = (s2->Gpix[y])[x];
b = (s2->Bpix[y])[x];
}
(d->Rpix[y])[x] = r;
(d->Gpix[y])[x] = g;
(d->Bpix[y])[x] = b;
}
}
return OLL_KORRECT;
}
/*::------------------------------------------------------------------::*/
/* new 7 mars 2010 */
int
Image_combine_random_rgb(Image_Desc *s1, Image_Desc *s2, Image_Desc *d,
int yo)
{
int foo, x, y, r, g, b, r7, g7, b7;
if ( (foo=Image_compare_desc(s1, s2)) )
{
fprintf(stderr, "%s: sources are differents (%d)\n", __func__, foo);
return foo;
}
if ( (foo=Image_compare_desc(s1, d)) )
{
fprintf(stderr, "%s: destination different (%d)\n", __func__, foo);
return foo;
}
for (y=0; y<s1->height; y++)
{
for (x=0; x<s1->width; x++)
{
if ( (rand()%100) > yo ) r = (s1->Rpix[y])[x];
else r = (s2->Rpix[y])[x];
if ( (rand()%100) > yo ) g = (s1->Gpix[y])[x];
else g = (s2->Gpix[y])[x];
if ( (rand()%100) > yo ) b = (s1->Bpix[y])[x];
else b = (s2->Bpix[y])[x];
(d->Rpix[y])[x] = r;
(d->Gpix[y])[x] = g;
(d->Bpix[y])[x] = b;
}
}
return FULL_NUCKED;
}
/*::------------------------------------------------------------------::*/