Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* INTERPOLATOR 2070
*
* Don't use that software in real life !
*
* imported in FloatImg Mon Nov 9 19:08:57 CET 2020
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <glob.h>
#include "../floatimg.h"
#include "crapulator.h"
// XXX #include "fonctions.h"
int verbosity;
int convert_to_gray; /* needed by fonctions.c */
/* -------------------------------------------------------------- */
int interpolator(char *pattern, char *outdir, int Nsteps)
{
FloatImg A, B, Out, *pFirst, *pSecond, *pTmp;
glob_t globbuf;
int foo, idx, ipng, w, h, step;
int iarray[3];
char *cptr, line[200];
float coef;
fprintf(stderr, "\nfrom %s to %s with %d steps.\n", pattern, outdir, Nsteps);
memset(&globbuf, 0, sizeof(glob_t));
foo = glob(pattern, 0, NULL, &globbuf);
fprintf(stderr, "globbing '%s' -> %d, %ld files found\n",
pattern, foo, globbuf.gl_pathc);
if (0 == globbuf.gl_pathc) {
fprintf(stderr, "%s : no file found, aborting\n", __func__);
return -1;
}
foo = fimg_fileinfos(globbuf.gl_pathv[0], iarray);
w = iarray[0], h = iarray[1];
fprintf(stderr, "\tfirst image size : %dx%d\n", w, h);
fimg_create(&A, w, h, 3); pFirst = &A;
fimg_create(&B, w, h, 3); pSecond = &B;
fimg_create(&Out, w, h, 3);
pTmp = NULL;
ipng = 0;
for (idx=0; idx<globbuf.gl_pathc; idx++) {
cptr = globbuf.gl_pathv[idx];
/* read the next file in B */
fprintf(stderr, "loading %s\n", cptr);
foo = fimg_load_from_dump(cptr, &B);
if (foo) {
fprintf(stderr, "load #%d from dump -> %d\n", idx, foo);
continue;
}
/* here, we can insert the input filter */
/* OK try it ... */
foo = crapulator(&B, 8, 1.0);
if (foo) {
fprintf(stderr, "crapulator failure %d\n", foo);
exit(1);
}
for (step=0; step<Nsteps; step++) {
coef = (float)step / (float)Nsteps;
fimg_interpolate(pSecond, pFirst, &Out, coef);
/* here we can insert the output filter */
sprintf(line, "%s/%05d.png", outdir, ipng);
foo = fimg_save_as_png(&Out, line, 0);
if (foo) {
fprintf(stderr, "err saving %s\n", line);
return -8;
}
ipng++;
}
#if 1
/* temporary hack : move datas */
fimg_copy_data(&B, &A);
#else
/* swap pointers to the two picz */
pTmp = pSecond;
pSecond = pFirst;
pFirst = pTmp;
/* XXX THIS CODE DON'T WORK !!! */
#endif
}
fprintf(stderr, "generated %d png files\n", ipng);
return 0;
}
/* -------------------------------------------------------------- */
int main (int argc, char *argv[])
{
int foo;
int nbrsteps = 9;
fprintf(stderr, "*** %s : compiled by tTh, %s %s\n", __FILE__,
__DATE__, __TIME__);
fimg_print_version(2);
if (4 != argc) {
fprintf(stderr, "args: <in globpattern> <out dir> <nbrsteep>\n");
exit(1);
}
nbrsteps = atoi(argv[3]);
foo = interpolator(argv[1], argv[2], nbrsteps);
fprintf(stderr, "interpolator -> %d\n", foo);
return 0;
}
/* -------------------------------------------------------------- */