Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* ADDPNM
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include "../floatimg.h"
int verbosity;
/* --------------------------------------------------------------------- */
int add_pnm_to_fimg(char *srcname, char *dstname, int notused)
{
FloatImg dst, src;
int foo, x, y, idx;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %s' )\n", __func__, srcname, dstname);
#endif
foo = fimg_create_from_dump(dstname, &dst);
if (foo) fprintf(stderr, "create dst fimg from '%s' -> %d\n", dstname, foo);
#if DEBUG_LEVEL
fimg_describe(&dst, "created fimg from dump");
#endif
foo = fimg_load_from_pnm(srcname, &src, 0);
if (foo) fprintf(stderr, "create src fimg from '%s' -> %d\n", dstname, foo);
#if DEBUG_LEVEL
fimg_describe(&src, "created fimg from PNM");
#endif
// fprintf(stderr, "src is %dx%d\n", src.width, src.height);
idx = 0;
for (y=0; y<src.height; y++) {
for (x=0; x<src.width; x++) {
dst.R[idx] += src.R[idx];
dst.G[idx] += src.G[idx];
dst.B[idx] += src.B[idx];
idx++;
}
}
foo = fimg_dump_to_file(&dst, dstname, 0);
if (foo) { fprintf(stderr, "fimg dump -> %d\n", foo); }
return 0;
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo;
// int srcW, srcH;
int infos[3];
if (3 != argc) {
fimg_print_version(1);
fprintf(stderr, "usage:\n\t%s img.fimg cumul.fimg\n", argv[0]);
exit(1);
}
verbosity = 0;
if ( 0==access(argv[2], R_OK|W_OK) ) { /* fimg is readable */
// fprintf(stderr, "%s exist\n", argv[2]);
}
/*
else {
fprintf(stderr, "*** must create '%s' %dx%d first !!!\n",
argv[2], tgaW, tgaH);
exit(1);
} */
foo = fimg_fileinfos(argv[2], infos);
// fprintf(stderr, "get dims of '%s' -> %d\n", argv[2], foo);
if (foo) {
fprintf(stderr, "*** %s is badly broken\n", argv[2]);
exit(2);
}
foo = add_pnm_to_fimg(argv[1], argv[2], 0);
return 0;
}
/* --------------------------------------------------------------------- */