GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: src/unrrdu/shuffle.c Lines: 15 51 29.4 %
Date: 2017-05-26 Branches: 1 24 4.2 %

Line Branch Exec Source
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/*
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  Teem: Tools to process and visualize scientific data and images             .
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  Copyright (C) 2013, 2012, 2011, 2010, 2009  University of Chicago
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  Copyright (C) 2008, 2007, 2006, 2005  Gordon Kindlmann
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  Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998  University of Utah
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  This library is free software; you can redistribute it and/or
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  modify it under the terms of the GNU Lesser General Public License
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  (LGPL) as published by the Free Software Foundation; either
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  version 2.1 of the License, or (at your option) any later version.
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  The terms of redistributing and/or modifying this software also
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  include exceptions to the LGPL that facilitate static linking.
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  This library is distributed in the hope that it will be useful,
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  but WITHOUT ANY WARRANTY; without even the implied warranty of
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  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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  Lesser General Public License for more details.
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  You should have received a copy of the GNU Lesser General Public License
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  along with this library; if not, write to Free Software Foundation, Inc.,
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  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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*/
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#include "unrrdu.h"
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#include "privateUnrrdu.h"
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#define INFO "Permute slices along one axis"
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static const char *_unrrdu_shuffleInfoL =
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(INFO
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 ". Slices along one axis are re-arranged as units "
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 "according to the given permutation (or its inverse). "
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 "The permutation tells which old slice to put at each "
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 "new position.  For example, the shuffle "
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 "0->1,\t1->2,\t2->0 would be \"2 0 1\".  Obviously, "
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 "if you have to rearrange the many slices of a large "
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 "dataset, you should probably store the permutation "
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 "in a plain text file and use it as a "
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 "\"response file\".\n "
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 "* Uses nrrdShuffle");
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int
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unrrdu_shuffleMain(int argc, const char **argv, const char *me,
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                   hestParm *hparm) {
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  hestOpt *opt = NULL;
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1
  char *out, *err;
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  Nrrd *nin, *nout;
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1
  unsigned int di, axis, permLen, *perm, *iperm, *whichperm;
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  size_t *realperm;
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  int inverse, pret;
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  airArray *mop;
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  /* so that long permutations can be read from file */
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1
  hparm->respFileEnable = AIR_TRUE;
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  hestOptAdd(&opt, "p,permute", "slc0 slc1", airTypeUInt, 1, -1, &perm, NULL,
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             "new slice ordering", &permLen);
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1
  hestOptAdd(&opt, "inv,inverse", NULL, airTypeInt, 0, 0, &inverse, NULL,
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             "use inverse of given permutation");
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  OPT_ADD_AXIS(axis, "axis to shuffle along");
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  OPT_ADD_NIN(nin, "input nrrd");
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  OPT_ADD_NOUT(out, "output nrrd");
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  mop = airMopNew();
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  airMopAdd(mop, opt, (airMopper)hestOptFree, airMopAlways);
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  USAGE(_unrrdu_shuffleInfoL);
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  PARSE();
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  airMopAdd(mop, opt, (airMopper)hestParseFree, airMopAlways);
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  nout = nrrdNew();
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  airMopAdd(mop, nout, (airMopper)nrrdNuke, airMopAlways);
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  /* we have to do error checking on axis in order to do error
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     checking on length of permutation */
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  if (!( axis < nin->dim )) {
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    fprintf(stderr, "%s: axis %d not in valid range [0,%d]\n",
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            me, axis, nin->dim-1);
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    airMopError(mop);
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    return 1;
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  }
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  if (!( permLen == nin->axis[axis].size )) {
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    char stmp[AIR_STRLEN_SMALL];
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    fprintf(stderr, "%s: permutation length (%u) != axis %d's size (%s)\n",
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            me, permLen, axis,
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            airSprintSize_t(stmp, nin->axis[axis].size));
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    airMopError(mop);
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    return 1;
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  }
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  if (inverse) {
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    iperm = AIR_CALLOC(permLen, unsigned int);
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    airMopAdd(mop, iperm, airFree, airMopAlways);
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    if (nrrdInvertPerm(iperm, perm, permLen)) {
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      fprintf(stderr,
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              "%s: couldn't compute inverse of given permutation\n", me);
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      airMopError(mop);
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      return 1;
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    }
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    whichperm = iperm;
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  } else {
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    whichperm = perm;
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  }
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  realperm = AIR_CALLOC(permLen, size_t);
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  airMopAdd(mop, realperm, airFree, airMopAlways);
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  for (di=0; di<permLen; di++) {
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    realperm[di] = whichperm[di];
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  }
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  if (nrrdShuffle(nout, nin, axis, realperm)) {
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    airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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    fprintf(stderr, "%s: error shuffling nrrd:\n%s", me, err);
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    airMopError(mop);
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    return 1;
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  }
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  SAVE(out, nout, NULL);
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  airMopOkay(mop);
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  return 0;
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1
}
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UNRRDU_CMD(shuffle, INFO);