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adding a file loading func - ugly code

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Tonton Th 2019-12-18 14:39:47 +01:00
parent 452bc6cf29
commit 538023b586
2 changed files with 44 additions and 2 deletions
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3
floatimg.h
View File

@ -2,7 +2,7 @@
* floatimg.h
*/
#define FIMG_VERSION 81
#define FIMG_VERSION 82
/*
* in memory descriptor
@ -91,6 +91,7 @@ int fimg_mk_gray_from(FloatImg *src, FloatImg*dst, int k);
/* FIMG files module */
int fimg_fileinfos(char *fname, int *datas);
int fimg_dump_to_file(FloatImg *head, char *fname, int notused);
int fimg_load_from_dump(char *fname, FloatImg *where);
int fimg_create_from_dump(char *fname, FloatImg *head);
/* mathematics operations */

43
lib/fimg-file.c
View File

@ -8,7 +8,7 @@
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "../floatimg.h"
extern int verbosity; /* must be declared around main() */
@ -99,6 +99,47 @@ if (nbre != foo) {
fclose(fp);
return 0;
}
/* ---------------------------------------------------------------- */
int fimg_load_from_dump(char *fname, FloatImg *where)
{
FILE *fp;
int foo, nbre;
FimgFileHead filehead;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, head);
#endif
if (NULL==(fp = fopen(fname, "r"))) {
perror(fname); exit(1);
}
foo = fread(&filehead, sizeof(FimgFileHead), 1, fp);
if (1 != foo) {
fprintf(stderr, "%s : short read\n", fname);
fclose(fp);
return -1;
}
/* check compatibility */
if ( (filehead.w != where->width) ||
(filehead.h != where->height) ||
(filehead.t != where->type) ) {
fprintf(stderr, "file '%s' incompatible\n", fname);
exit(3);
}
nbre = filehead.w*filehead.h*filehead.t; /* ugly quirk */
foo = fread(where->R, sizeof(float), nbre, fp);
if (nbre != foo) {
fprintf(stderr, "err read '%s' : %d\n", fname, errno);
exit(3);
}
fclose(fp);
return 0;
}
/* ---------------------------------------------------------------- */