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