gromacs-2021.3.tar.gz: …/src/compression/dict.c | Fossies

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Member “gromacs-2021.3/src/external/tng_io/src/compression/dict.c” (18 Aug 2021, 972 Bytes) of package /linux/privat/gromacs-2021.3.tar.gz:

    1 /* This code is part of the tng compression routines.
    2  *
    3  * Written by Daniel Spangberg and Magnus Lundborg
    4  * Copyright (c) 2010, 2013-2014 The GROMACS development team.
    5  *
    6  *
    7  * This program is free software; you can redistribute it and/or
    8  * modify it under the terms of the Revised BSD License.
    9  */
   10 
   11 
   12 #include <string.h>
   13 #include "../../include/compression/dict.h"
   14 
   15 void Ptngc_comp_canonical_dict(unsigned int *dict, int *ndict)
   16 {
   17   int i;
   18   for (i=0; i<0x20004; i++)
   19     dict[i]=i;
   20 
   21   *ndict=0x20004;
   22 }
   23 
   24 void Ptngc_comp_make_dict_hist(unsigned int *vals, const int nvals,
   25                          unsigned int *dict, int *ndict,
   26                          unsigned int *hist)
   27 {
   28   int i;
   29   int j=0;
   30 
   31   memset(hist, 0, sizeof(unsigned int)*0x20004);
   32 
   33   for (i=0; i<nvals; i++)
   34     hist[vals[i]]++;
   35   for (i=0; i<0x20004; i++)
   36     if (hist[i]!=0)
   37       {
   38         hist[j]=hist[i];
   39         dict[j]=i;
   40         j++;
   41         if(j==nvals)
   42           break;
   43       }
   44   *ndict=j;
   45 }