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