179 lines
4.3 KiB
C
179 lines
4.3 KiB
C
/*
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combine5.c
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----------
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dégradés linéaires divers.
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avec des erreurs d'arrondi dedans.
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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_combine_Vdegrade(Image_Desc *s1, Image_Desc *s2,
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Image_Desc *dst, int sens)
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{
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int x, y, foo;
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int r1, g1, b1;
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int r2, g2, b2;
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int rd, gd, bd;
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double k, ka, kb;
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if ( (foo=Image_compare_desc(s1, s2)) ) {
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fprintf(stderr, "%s: sources err: %s\n", __func__, Image_err2str(foo));
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return foo;
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}
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for (y=0; y<s1->height; y++) {
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k = (double)y/(double)s1->height;
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if (sens) { ka = k; kb = 1.0 - ka; }
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else { kb = k; ka = 1.0 - kb; }
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for (x=0; x<s1->width; x++) {
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Image_getRGB(s1, x, y, &r1, &g1, &b1);
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Image_getRGB(s2, x, y, &r2, &g2, &b2);
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rd = (int)((double)r1*ka+(double)r2*(kb));
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gd = (int)((double)g1*ka+(double)g2*(kb));
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bd = (int)((double)b1*ka+(double)b2*(kb));
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Image_plotRGB(dst, x, y, rd, gd, bd);
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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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int
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Image_combine_Hdegrade( Image_Desc *s1, Image_Desc *s2,
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Image_Desc *dst, int sens)
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{
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int x, y, foo;
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int r1, g1, b1;
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int r2, g2, b2;
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int rd, gd, bd;
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double k, ka, kb;
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if ( (foo=Image_compare_desc(s1, s2)) ) {
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fprintf(stderr, "%s: sources err: %s\n", __func__, Image_err2str(foo));
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return foo;
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}
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for (x=0; x<s1->width; x++) {
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k = (double)x/(double)s1->width;
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if (sens) { ka = k; kb = 1.0-ka; }
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else { kb = k; ka = 1.0-kb; }
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for (y=0; y<s1->height; y++) {
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Image_getRGB(s1, x, y, &r1, &g1, &b1);
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Image_getRGB(s2, x, y, &r2, &g2, &b2);
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rd = (int)((double)r1*ka+(double)r2*(kb));
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gd = (int)((double)g1*ka+(double)g2*(kb));
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bd = (int)((double)b1*ka+(double)b2*(kb));
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Image_plotRGB(dst, x, y, rd, gd, bd);
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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, là, on va essayer de faire ça en diagonale, mais
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* je pense que ça ne va pas être simple, car il faut traiter
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* le cas des images qui ne sont pas carrées...
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*/
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int
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Image_combine_Ddegrade( Image_Desc *s1, Image_Desc *s2,
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Image_Desc *dst, int sens)
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{
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int foo;
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fprintf(stderr, "%s:%d:%s: no such function or procedure\n",
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__FILE__, __LINE__, __func__);
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if ( (foo=Image_compare_desc(s1, s2)) ) {
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fprintf(stderr, "%s: sources err: %s\n", __func__, Image_err2str(foo));
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return foo;
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}
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if ( (foo=Image_compare_desc(s1, dst)) ) {
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fprintf(stderr, "%s: dst err: %s\n", __func__, Image_err2str(foo));
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return foo;
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}
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fprintf(stderr, "%s : sens=%d\n", __func__, sens); /* XXX */
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return FUNC_NOT_FINISH;
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}
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/*::------------------------------------------------------------------::*/
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/* nouveau 29 novembre 2013
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*/
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int Image_combine_Vsplit(Image_Desc *s1, Image_Desc *s2, Image_Desc *d,
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int xv, int uh)
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{
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int foo, x, y;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %p %p %d %d )\n", __func__, s1, s2, d, xv, uh);
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#endif
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if (0 != uh)
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fprintf(stderr, "%s : uh must be 0 and not %d\n", __func__, uh);
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if ( (foo=Image_compare_desc(s1, s2)) ) {
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fprintf(stderr, "%s : src err: %s\n", __func__, Image_err2str(foo));
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return foo;
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}
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for (y=0; y<s1->height; y++) {
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for (x=0; x<s1->width; x++) {
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if (x<xv) {
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(d->Rpix[y])[x] = (s1->Rpix[y])[x];
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(d->Gpix[y])[x] = (s1->Gpix[y])[x];
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(d->Bpix[y])[x] = (s1->Bpix[y])[x];
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}
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else {
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(d->Rpix[y])[x] = (s2->Rpix[y])[x];
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(d->Gpix[y])[x] = (s2->Gpix[y])[x];
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(d->Bpix[y])[x] = (s2->Bpix[y])[x];
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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 29 novembre 2013
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*/
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int Image_combine_Hsplit(Image_Desc *s1, Image_Desc *s2, Image_Desc *d,
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int yv, int uh)
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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 %p %p %d %d )\n", __func__, s1, s2, d, yv, uh);
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#endif
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if (0 != uh)
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fprintf(stderr, "*** %s : uh must be 0 and not %d\n", __func__, uh);
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for (y=0; y<s1->height; y++) {
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for (x=0; x<s1->width; x++) {
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if (y<yv)
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{
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(d->Rpix[y])[x] = (s1->Rpix[y])[x];
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(d->Gpix[y])[x] = (s1->Gpix[y])[x];
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(d->Bpix[y])[x] = (s1->Bpix[y])[x];
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}
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else
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{
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(d->Rpix[y])[x] = (s2->Rpix[y])[x];
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(d->Gpix[y])[x] = (s2->Gpix[y])[x];
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(d->Bpix[y])[x] = (s2->Bpix[y])[x];
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}
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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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