473 lines
11 KiB
C
473 lines
11 KiB
C
/*
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fabrication de cadres dans des images.
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--------------------------------------
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new 24 Janvier 2000
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include "../tthimage.h"
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/*::------------------------------------------------------------------::*/
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/*
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* l'epaisseur de ce cadre est de DEUX pixels, et cette valeur
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* ne doit pas changer, car d'autres fonctions en dependent.
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*/
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int Image_cadre_A(Image_Desc *im)
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{
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int x, y;
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int a, b;
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a = 0; b = 255;
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for (x=0; x<im->width; x++) {
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(im->Rpix[0])[x] = a;
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(im->Gpix[0])[x] = a;
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(im->Bpix[0])[x] = a;
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Image_plotRGB(im, x, im->height-1, a, a, a);
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}
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for (y=0; y<im->height; y++) {
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(im->Rpix[y])[0] = a;
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(im->Gpix[y])[0] = a;
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(im->Bpix[y])[0] = a;
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Image_plotRGB(im, im->width-1, y, a, a, a);
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}
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for (x=1; x<im->width-1; x++) {
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(im->Rpix[1])[x] = b;
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(im->Gpix[1])[x] = b;
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(im->Bpix[1])[x] = b;
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Image_plotRGB(im, x, im->height-2, b, b, b);
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}
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for (y=1; y<im->height-1; y++) {
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(im->Rpix[y])[1] = b;
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(im->Gpix[y])[1] = b;
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(im->Bpix[y])[1] = b;
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Image_plotRGB(im, im->width-2, y, b, b, b);
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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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* 30 septembre 2008: Image_cadre_B devient Image_cadre_cracra :)
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*/
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int Image_cadre_cracra(Image_Desc *im, int largeur, int k)
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{
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int x, y, r, g, b;
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if (im->width < (largeur+5) || im->height < (largeur+5))
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return IMAGE_TOO_SMALL;
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#if DEBUG_LEVEL
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fprintf(stderr, "%s: k is $%04x\n", __func__, k);
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#endif
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for (y=0; y<im->height; y++) {
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for (x=0; x<largeur; x++) {
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r = rand() % (10 + x * 20);
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g = rand() % (11 + x * 10);
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b = rand() % (10 + x * 12);
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (x=0; x<largeur; x++) {
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r = rand() % (10 + (largeur-x) * 20);
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g = rand() % (10 + (largeur-x) * 10);
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b = rand() % (10 + (largeur-x) * 12);
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Image_plotRGB(im, x+im->width-largeur, y, r, g, b);
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}
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}
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for (x=0; x<im->width; x++) {
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for (y=0; y<largeur; y++) {
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r = rand() % (10 + y * 10);
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g = rand() % (10 + y * 12);
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b = rand() % (10 + y * 20);
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (y=0; y<largeur; y++) {
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r = rand() % (10 + (largeur-y) * 10);
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g = rand() % (10 + (largeur-y) * 12);
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b = rand() % (10 + (largeur-y) * 20);
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(im->Rpix[y+im->height-largeur])[x] = r;
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(im->Gpix[y+im->height-largeur])[x] = g;
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(im->Bpix[y+im->height-largeur])[x] = b;
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}
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}
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return OLL_KORRECT; /* OK, this func is really finishd */
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}
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/*::------------------------------------------------------------------::*/
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/*
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* killing this func - 30 sept 2008 - ave St Exupery
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*/
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int Image_cadre_B(Image_Desc *im, int larg)
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{
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int foo;
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fprintf(stderr, "****** Image_cadre_B is obsolete ******\n");
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fprintf(stderr, "****** Use Image_cadre_cracra !! ******\n");
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foo = Image_cadre_cracra(im, larg, 0);
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return foo;
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}
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/*::------------------------------------------------------------------::*/
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/*
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* --------------------------------------------------
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* 3 octobre 2009 : il faudra la renommer pour etre XXX
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* en accord avec 'tga_cadre' qui la nomme "sweep". XXX
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*/
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int Image_cadre_C(Image_Desc *im, int r, int g, int b, int n)
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{
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int x, y, x2, y2, ir, ig, ib;
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float fx, fy;
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float d, fn, coef;
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "%s : %d %d %d / %d\n", __func__, r, g, b, n);
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#endif
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fn = (float)(n*n);
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x2 = im->width / 2;
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y2 = im->height / 2;
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for (y=0; y<im->height; y++) {
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/*
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* distance au bord HAUT BAS le plus proche
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*/
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if (y < y2) fy = (float)y;
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else fy = (float)((im->height - y)-1);
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fy = fy*fy;
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for (x=0; x<im->width; x++) {
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/*
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* distance au bord DROITE GAUCHE le plus proche
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*/
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if (x < x2) fx = (float)x;
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else fx = (float)((im->width - x)-1);
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fx = fx*fx;
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/* XXX un peu plus d'explications ici */
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if (fx < fy) d = fx;
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else d = fy;
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if (d < fn) {
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coef = d / fn;
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ir = (im->Rpix[y])[x];
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ig = (im->Gpix[y])[x];
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ib = (im->Bpix[y])[x];
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ir=(int)(((float)ir * coef) + ((float)r * (1.0-coef)));
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ig=(int)(((float)ig * coef) + ((float)g * (1.0-coef)));
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ib=(int)(((float)ib * coef) + ((float)b * (1.0-coef)));
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/* Image_plotRGB(im, x, y, ir, ig, ib); */
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(im->Rpix[y])[x] = ir;
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(im->Gpix[y])[x] = ig;
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(im->Bpix[y])[x] = ib;
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}
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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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* this function was the successor of the 'C' cadre. Need a rename.
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*/
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int Image_cadre_bruit(Image_Desc *im, int r, int g, int b, int n)
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{
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int x, y, x2, y2, ir, ig, ib;
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float fx, fy;
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float d, fn, level;
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#if DEBUG_LEVEL
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fprintf(stderr, "%s : %d %d %d / %d\n", __func__, r, g, b, n);
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#endif
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#if DEBUG_LEVEL
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fprintf(stderr, " %s : current random is %d\n", __func__, rand());
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#endif
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fn = (float)(n*n);
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x2 = im->width / 2;
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y2 = im->height / 2;
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for (y=0; y<im->height; y++) {
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/*
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* distance au bord HAUT BAS le plus proche
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*/
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if (y < y2) fy = (float)y;
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else fy = (float)((im->height - y)-1);
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fy = fy*fy;
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for (x=0; x<im->width; x++) {
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/*
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* distance au bord DROITE GAUCHE le plus proche
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*/
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if (x < x2) fx = (float)x;
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else fx = (float)((im->width - x)-1);
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fx = fx*fx;
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if (fx < fy) d = fx;
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else d = fy;
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if (d < fn) {
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level = (int)((d / fn) * 1000.0);
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if ( (rand()%1000) < level ) {
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Image_getRGB(im, x, y, &ir, &ig, &ib);
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}
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else {
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ir = r; ig = g; ib = b;
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}
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/* Image_plotRGB(im, x, y, ir, ig, ib); */
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(im->Rpix[y])[x] = ir;
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(im->Gpix[y])[x] = ig;
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(im->Bpix[y])[x] = ib;
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}
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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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/* inventee pour blablanux :) */
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int Image_cadre_E(Image_Desc *im, int v1, int v2, int v3, int dim)
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{
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int foo, bar;
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Image_Rect rect;
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for (foo=0; foo<dim; foo++) {
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bar = 1 << (foo%8);
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#if DEBUG_LEVEL > 1
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fprintf(stderr, "cadre E: foo is %d, bar is 0x%x\n", foo, bar);
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#endif
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rect.x = foo;
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rect.y = foo;
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rect.w = im->width - foo*2;
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rect.h = im->height - foo*2;
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Image_draw_rect(im, &rect, v1^bar, v2^bar, v3^bar);
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}
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return OLL_KORRECT;
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}
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/*::------------------------------------------------------------------::*/
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/* 5 Fev 2001
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* pas de d<>grad<61>
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*/
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int Image_cadre_pattern_0(Image_Desc *im, Image_Desc *pat, int larg)
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{
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int x, y, r, g, b;
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/*
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* Tiens, je la supposais plus facile a ecrire...
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*/
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for (y=0; y<im->height; y++) {
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for (x=0; x<larg; x++) {
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Image_getRGB(pat, x%pat->width, y%pat->height, &r, &g, &b);
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/* Image_plotRGB(im, x, y, r, g, b); */
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (x=im->width-larg; x<im->width; x++) {
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Image_getRGB(pat, x%pat->width, y%pat->height, &r, &g, &b);
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/* Image_plotRGB(im, x, y, r, g, b); */
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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}
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for (x=0; x<im->width; x++) {
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for (y=0; y<larg; y++) {
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Image_getRGB(pat, x%pat->width, y%pat->height, &r, &g, &b);
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/* Image_plotRGB(im, x, y, r, g, b); */
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (y=im->height-larg; y<im->height; y++) {
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Image_getRGB(pat, x%pat->width, y%pat->height, &r, &g, &b);
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/* Image_plotRGB(im, x, y, r, g, b); */
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->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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/* 12 Feb 2001
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* d<>grad<61> proportionnel <20> la distance
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*/
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int Image_cadre_pattern_1(Image_Desc *im, Image_Desc *pat, int n)
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{
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int x, y, x2, y2, ir, ig, ib, jr, jg, jb, r, g, b;
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float fx, fy;
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float d, fn, level;
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int lmax;
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fn = (float)(n*n);
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fx = fy = 0.0; /* warning shutter */
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x2 = im->width / 2;
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y2 = im->height / 2;
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#if DEBUG_LEVEL
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fprintf(stderr, "*** %s: fn = %f\n", __func__, fn);
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#endif
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lmax = 0;
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for (y=0; y<im->height; y++) {
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/*
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* distance au bord HAUT BAS le plus proche
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*/
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if (y < y2) fy = (float)y;
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else fy = (float)((im->height - y)-1);
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fy = fy*fy;
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for (x=0; x<im->width; x++) {
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/*
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* distance au bord DROITE GAUCHE le plus proche
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*/
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if (x < x2) fx = (float)x;
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else fx = (float)((im->width - x)-1);
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fx = fx*fx;
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/*
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* we take the smallest of the two distances
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*/
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if (fx < fy) d = fx;
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else d = fy;
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if (d < fn) {
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level = (int)(100 * d / fn);
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if (level > lmax) {
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lmax = level;
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}
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Image_getRGB(im, x, y, &ir, &ig, &ib);
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Image_getRGB(pat, x%pat->width, y%pat->height,
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&jr, &jg, &jb);
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r = (ir * level) + (jr * (100-level));
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g = (ig * level) + (jg * (100-level));
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b = (ib * level) + (jb * (100-level));
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/* Image_plotRGB(im, x, y, r/100, g/100, b/100); */
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(im->Rpix[y])[x] = r / 100;
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(im->Gpix[y])[x] = g / 100;
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(im->Bpix[y])[x] = b / 100;
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}
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}
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "cadre pattern 1 : lmax = %d\n", lmax);
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#endif
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return OLL_KORRECT;
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}
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/*::------------------------------------------------------------------::*/
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int Image_cadre_pattern_2(Image_Desc *im, Image_Desc *pat, int n)
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{
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int x, y, x2, y2, ir, ig, ib;
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int xp, yp;
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float fx, fy;
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float d, fn, level;
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int lmax;
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fn = (float)(n*n);
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fx = fy = 0.0; /* warning shutter */
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x2 = im->width / 2;
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y2 = im->height / 2;
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#if DEBUG_LEVEL
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fprintf(stderr, "*** cadre pat 2 : fn = %f\n", fn);
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fprintf(stderr, "*** cadre pat 2 : pat: %d x %d\n", pat->width, pat->height);
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#endif
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lmax = 0;
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for (y=0; y<im->height; y++) {
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/* distance au bord HAUT BAS le plus proche */
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if (y < y2) fy = (float)y;
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else fy = (float)((im->height - y)-1);
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fy = fy*fy;
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for (x=0; x<im->width; x++) {
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/* distance au bord DROITE GAUCHE le plus proche */
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if (x < x2) fx = (float)x;
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else fx = (float)((im->width - x)-1);
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fx = fx*fx;
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/* we take the smallest of the two distances */
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if (fx < fy) d = fx;
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else d = fy;
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if (d < fn) {
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level = (int)((d / fn) * 1000.0);
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if ( (rand()%1000) < level ) {
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Image_getRGB(im, x, y, &ir, &ig, &ib);
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}
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else {
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xp = x % pat->width;
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yp = y % pat->height;
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Image_getRGB(pat, xp, yp, &ir, &ig, &ib);
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}
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/* Image_plotRGB(im, x, y, ir, ig, ib); */
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(im->Rpix[y])[x] = ir;
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(im->Gpix[y])[x] = ig;
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(im->Bpix[y])[x] = ib;
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}
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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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/* nouveau : Mon 12 Sep 2022 10:47:18 PM CEST
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*/
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int Image_cadre_std2(Image_Desc *im, int r, int g, int b, int nx, int ny)
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{
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int x, y;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %d %d %d %d %d )\n", __func__,
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im, r, g, b, nx, ny);
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#endif
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for (y=0; y<im->height; y++) {
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for (x=0; x<nx; x++) {
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (x=0; x<nx; x++) {
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(im->Rpix[y])[im->width-x-1] = r;
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(im->Gpix[y])[im->width-x-1] = g;
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(im->Bpix[y])[im->width-x-1] = b;
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}
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}
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for (x=0; x<im->width; x++) {
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for (y=0; y<ny; y++) {
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(im->Rpix[y])[x] = r;
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(im->Gpix[y])[x] = g;
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(im->Bpix[y])[x] = b;
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}
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for (y=0; y<ny; y++) {
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(im->Rpix[y+im->height-ny])[x] = r;
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(im->Gpix[y+im->height-ny])[x] = g;
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(im->Bpix[y+im->height-ny])[x] = b;
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}
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}
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return FUNC_IS_BETA;
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}
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/*::------------------------------------------------------------------::*/
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/* et maintenant ? on peut aller voir 'cadres2.c' ? */
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/*::------------------------------------------------------------------::*/
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