Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* FloatImg from tTh - 2021
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
/* --------------------------------------------------------------------- */
void fimg_print_minmax(float minmax[6], char *titre)
{
fprintf(stderr, "\t\tminmax %s\n", titre);
fprintf(stderr, "red\t\t%10f %10f\n", minmax[0], minmax[1]);
fprintf(stderr, "green\t\t%10f %10f\n", minmax[2], minmax[3]);
fprintf(stderr, "blue\t\t%10f %10f\n", minmax[4], minmax[5]);
}
/* --------------------------------------------------------------------- */
int parse_WxH(char *str, int *pw, int *ph)
{
// char *ptr;
int foo, w, h;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
str, pw, ph);
#endif
foo = sscanf(str, "%dx%d", &w, &h);
if (2 != foo) {
fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
return foo;
}
*pw = w; *ph = h;
return 2;
}
/* --------------------------------------------------------------------- */
int parse_double(char *str, double *dptr)
{
double value;
int foo;
foo = sscanf(str, "%lf", &value);
if (1 == foo) {
*dptr = value;
return 1;
}
return -1;
}
/* --------------------------------------------------------------------- */
int file_type_from_name(char *name)
{
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, name);
#endif
if (!strcasecmp(name, "pnm" )) return FILE_TYPE_PNM;
if (!strcasecmp(name, "fimg")) return FILE_TYPE_FIMG;
if (!strcasecmp(name, "tga" )) return FILE_TYPE_TGA;
if (!strcasecmp(name, "png" )) return FILE_TYPE_PNG;
if (!strcasecmp(name, "tiff")) return FILE_TYPE_TIFF;
if (!strcasecmp(name, "tif" )) return FILE_TYPE_TIFF;
if (!strcasecmp(name, "fits")) return FILE_TYPE_FITS;
if (!strcasecmp(name, "exr")) return FILE_TYPE_EXR;
return -1;
}
/* --------------------------------------------------------------------- */
int print_rectangle(char *str, FimgArea51 *rect)
{
printf("rect @ %p '%s':\n\t %dx%d at %d,%d\n", rect, str,
rect->w, rect->h, rect->x, rect->y);
return 0;
}
/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */
/*
* /!\ return 4 on success
*/
int parse_rectangle(char *str, FimgArea51 *r, int notused)
{
int x, y, w, h, foo;
if (verbosity)
fprintf(stderr, "parsing %s\n", str);
foo = sscanf(str, "%d,%d,%d,%d", &w, &h, &x, &y);
if (4 == foo) {
r->x = x, r->y = y, r->w = w, r->h = h;
return 4;
}
return -1;
}
/* --------------------------------------------------------------------- */
int format_from_extension(char *fname)
{
char *cptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' )\n", __func__, fname);
#endif
cptr = rindex(fname, '.');
if (NULL==cptr) {
fprintf(stderr, "No dot in %s\n", fname);
return -1;
}
#if DEBUG_LEVEL
fprintf(stderr, "\t[%s] --> [%s]\n", fname, cptr);
#endif
return file_type_from_name(cptr+1);
}
/* --------------------------------------------------------------------- */
char * extension_from_format(int fmt)
{
switch (fmt) {
case FILE_TYPE_FIMG: return ".fimg"; break;
case FILE_TYPE_PNM: return ".pnm"; break;
case FILE_TYPE_PNG: return ".png"; break;
case FILE_TYPE_TIFF: return ".tiff"; break;
case FILE_TYPE_FITS: return ".fits"; break;
case FILE_TYPE_TGA: return ".tga"; break;
default:
fprintf(stderr, "%s: bad %d fmt type\n", __func__, fmt);
return NULL;
}
return "???";
}
/* --------------------------------------------------------------------- */