122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
/*
|
|
patterns2.c
|
|
------------------
|
|
various random patterns.
|
|
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "../tthimage.h"
|
|
|
|
/*::------------------------------------------------------------------::*/
|
|
int
|
|
Image_texture_0(Image_Desc *dst, int bas, int haut)
|
|
{
|
|
int foo;
|
|
|
|
fprintf(stderr, "Texture 0: obsolete! use 'Image_gray_noise_0' now!\n");
|
|
|
|
foo = Image_gray_noise_0(dst, bas, haut);
|
|
|
|
return foo;
|
|
}
|
|
/*::------------------------------------------------------------------::*/
|
|
int
|
|
Image_texture_1(Image_Desc *dst, int bas, int haut)
|
|
{
|
|
int x, y, r, g, b;
|
|
|
|
#if DEBUG_LEVEL
|
|
fprintf(stderr, "Texture 1: %d %d\n", bas, haut);
|
|
#endif
|
|
|
|
for (y=0; y<dst->height; y++)
|
|
{
|
|
for (x=0; x<dst->width; x++)
|
|
{
|
|
r = rand()%(haut-bas) + bas;
|
|
g = rand()%(haut-bas) + bas;
|
|
b = rand()%(haut-bas) + bas;
|
|
|
|
(dst->Rpix[y])[y] = r;
|
|
(dst->Gpix[y])[y] = g;
|
|
(dst->Bpix[y])[y] = b;
|
|
}
|
|
}
|
|
|
|
return OLL_KORRECT;
|
|
}
|
|
/*::------------------------------------------------------------------::*/
|
|
/*
|
|
* en cours de mise au point ? à quoi servent les paramètres ?
|
|
* ou est la doc ? mais que fait tTh ? il moule dans une tribune ?
|
|
*/
|
|
int
|
|
Image_texture_2(Image_Desc *dst, int bas, int haut, int mod)
|
|
{
|
|
int x, y, r, g, b, foo;
|
|
|
|
|
|
#if DEBUG_LEVEL
|
|
fprintf(stderr, "Image texture 2: this func is experimental ;)\n");
|
|
#endif
|
|
|
|
if (mod == 0)
|
|
{
|
|
fprintf(stderr, "Image texture 2: 'mod' must be positive.\n");
|
|
return DIVISOR_IS_ZERO;
|
|
}
|
|
|
|
r = g = b = 127;
|
|
for (y=0; y<dst->height; y++)
|
|
{
|
|
for (x=0; x<dst->width; x++)
|
|
{
|
|
foo = rand() % mod;
|
|
switch(foo)
|
|
{
|
|
case 0: r = rand()%(haut-bas) + bas; break;
|
|
case 1: g = rand()%(haut-bas) + bas; break;
|
|
case 2: b = rand()%(haut-bas) + bas; break;
|
|
case 3: r = b = g = haut; break;
|
|
case 4: r = b = g = bas; break;
|
|
case 5: r = 0; break;
|
|
case 6: g = 0; break;
|
|
case 7: b = 0; break;
|
|
/*
|
|
* à partir de là, il y a beaucoup de 'case'
|
|
* qui se ressemblent trop...
|
|
*/
|
|
case 8: r = (x * rand()) & 0xff; break;
|
|
case 9: g = (x * rand()) & 0xff; break;
|
|
case 10: b = (x * rand()) & 0xff; break;
|
|
case 11: r = (y * rand()) & 0xff; break;
|
|
case 12: g = (y * rand()) & 0xff; break;
|
|
case 13: b = (y * rand()) & 0xff; break;
|
|
}
|
|
(dst->Rpix[y])[x] = r;
|
|
(dst->Gpix[y])[x] = g;
|
|
(dst->Bpix[y])[x] = b;
|
|
}
|
|
}
|
|
|
|
return OLL_KORRECT;
|
|
}
|
|
/*::------------------------------------------------------------------::*/
|
|
/*
|
|
* bon sang, j'ai le prototype sous les yeux, mais je n'ai pas
|
|
* la moindre idée de ce que doit faire la fonction !
|
|
*/
|
|
int
|
|
Image_texture_3(Image_Desc *dst, int bas, int haut, char *ctl, int quux)
|
|
{
|
|
int x, y;
|
|
|
|
fprintf(stderr, "Texture 3 is not here\n");
|
|
|
|
return FUNC_NOT_FINISH;
|
|
}
|
|
/*::------------------------------------------------------------------::*/
|