/*
******** nrrdEmpty()
**
** frees data inside nrrd AND resets all its state, so its the
** same as what comes from nrrdNew(). This includes free()ing
** any comments.
*/
Nrrd *
nrrdEmpty(Nrrd *nrrd) {
if (nrrd) {
nrrd->data = airFree(nrrd->data);
nrrdInit(nrrd);
}
return nrrd;
}
/*
******** nrrdNew()
**
** creates and initializes a Nrrd
**
** this does NOT use biff
*/
Nrrd *
nrrdNew(void)
{
int ii;
Nrrd *nrrd;
nrrd = (Nrrd*)(calloc(1, sizeof(Nrrd)));
if (!nrrd)
{
return NULL;
}
/* explicitly set pointers to NULL, since calloc isn't officially
guaranteed to do that. */
nrrd->data = NULL;
for (ii=0; ii<NRRD_DIM_MAX; ii++)
{
_nrrdAxisInfoNewInit(nrrd->axis + ii);
}
for (ii=0; ii<NRRD_SPACE_DIM_MAX; ii++)
{
nrrd->spaceUnits[ii] = NULL;
}
nrrd->content = NULL;
nrrd->sampleUnits = NULL;
/* create comment airArray (even though it starts empty) */
nrrd->cmt = NULL;
void *pvoid = (void*)&(nrrd->cmt);
nrrd->cmtArr = airArrayNew((void**)pvoid, NULL,
sizeof(char *), NRRD_COMMENT_INCR);
if (!nrrd->cmtArr)
{
return NULL;
}
airArrayPointerCB(nrrd->cmtArr, airNull, airFree);
/* create key/value airArray (even thought it starts empty) */
nrrd->kvp = NULL;
pvoid = &(nrrd->kvp);
nrrd->kvpArr = airArrayNew((void**)pvoid, NULL,
2*sizeof(char *), NRRD_KEYVALUE_INCR);
if (!nrrd->kvpArr)
{
return NULL;
}
/* key/value airArray uses no callbacks for now */
/* finish initializations */
nrrdInit(nrrd);
return nrrd;
}