text: /*
   * Copyright (c) 1999-2000 Image Power, Inc. and the University of
   *   British Columbia.
   * Copyright (c) 2001-2003 Michael David Adams.
   * All rights reserved.
   */
  
  /* __START_OF_JASPER_LICENSE__
   * 
   * JasPer License Version 2.0
   * 
   * Copyright (c) 2001-2006 Michael David Adams
   * Copyright (c) 1999-2000 Image Power, Inc.
   * Copyright (c) 1999-2000 The University of British Columbia
   * 
   * All rights reserved.
   * 
   * Permission is hereby granted, free of charge, to any person (the
   * "User") obtaining a copy of this software and associated documentation
   * files (the "Software"), to deal in the Software without restriction,
   * including without limitation the rights to use, copy, modify, merge,
   * publish, distribute, and/or sell copies of the Software, and to permit
   * persons to whom the Software is furnished to do so, subject to the
   * following conditions:
   * 
   * 1.  The above copyright notices and this permission notice (which
   * includes the disclaimer below) shall be included in all copies or
   * substantial portions of the Software.
   * 
   * 2.  The name of a copyright holder shall not be used to endorse or
   * promote products derived from the Software without specific prior
   * written permission.
   * 
   * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
   * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
   * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
   * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
   * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
   * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO
   * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
   * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
   * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
   * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
   * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE
   * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
   * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
   * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
   * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
   * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS
   * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
   * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE
   * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
   * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
   * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
   * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
   * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
   * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
   * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
   * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
   * 
   * __END_OF_JASPER_LICENSE__
   */
  
  /*
   * $Id$
   */
  
  /******************************************************************************\
  * Includes
  \******************************************************************************/
  
  #include <assert.h>
  #include <stdio.h>
  #include <string.h>
  #include <math.h>
  #include <stdlib.h>
  #include <stdarg.h>
  
  #include "jasper/jas_math.h"
  #include "jasper/jas_malloc.h"
  
  #include "jpc_fix.h"
  #include "jpc_cs.h"
  #include "jpc_flt.h"
  #include "jpc_util.h"
  
  /******************************************************************************\
  * Miscellaneous Functions
  \******************************************************************************/
  
  int jpc_atoaf(const char *s, int *numvalues, double **values)
  {
  	static char delim[] = ", \t\n";
  	char buf[4096];
  	int n;
  	double *vs;
  	char *cp;
  
  	strncpy(buf, s, sizeof(buf));
  	buf[sizeof(buf) - 1] = '\0';
  	n = 0;
  	if ((cp = strtok(buf, delim))) {
  		++n;
  		while ((cp = strtok(0, delim))) {
  			if (cp != '\0') {
  				++n;
  			}
  		}
  	}
  
  	if (n) {
  		if (!(vs = jas_alloc2(n, sizeof(double)))) {
  			return -1;
  		}
  
  		strncpy(buf, s, sizeof(buf));
  		buf[sizeof(buf) - 1] = '\0';
  		n = 0;
  		if ((cp = strtok(buf, delim))) {
  			vs[n] = atof(cp);
  			++n;
  			while ((cp = strtok(0, delim))) {
  				if (cp != '\0') {
  					vs[n] = atof(cp);
  					++n;
  				}
  			}
  		}
  	} else {
  		vs = 0;
  	}
  
  	*numvalues = n;
  	*values = vs;
  
  	return 0;
  }
  
  jas_seq_t *jpc_seq_upsample(jas_seq_t *x, int m)
  {
  	jas_seq_t *z;
  	int i;
  
  	if (!(z = jas_seq_create(jas_seq_start(x) * m, (jas_seq_end(x) - 1) * m + 1)))
  		return 0;
  	for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {
  		*jas_seq_getref(z, i) = (!JAS_MOD(i, m)) ? jas_seq_get(x, i / m) :
  		  jpc_inttofix(0);
  	}
  
  	return z;
  }
  
  jpc_fix_t jpc_seq_norm(jas_seq_t *x)
  {
  	jpc_fix_t s;
  	int i;
  
  	s = jpc_inttofix(0);
  	for (i = jas_seq_start(x); i < jas_seq_end(x); i++) {
  		s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(x, i), jas_seq_get(x, i)));
  	}
  
  	return jpc_dbltofix(sqrt(jpc_fixtodbl(s)));
  }
  
  jas_seq_t *jpc_seq_conv(jas_seq_t *x, jas_seq_t *y)
  {
  	int i;
  	int j;
  	int k;
  	jas_seq_t *z;
  	jpc_fix_t s;
  	jpc_fix_t v;
  
  	z = jas_seq_create(jas_seq_start(x) + jas_seq_start(y),
  	  jas_seq_end(x) + jas_seq_end(y) - 1);
  	assert(z);
  	for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {
  		s = jpc_inttofix(0);
  		for (j = jas_seq_start(y); j < jas_seq_end(y); j++) {
  			k = i - j;
  			if (k < jas_seq_start(x) || k >= jas_seq_end(x)) {
  				v = JPC_FIX_ZERO;
  			} else {
  				v = jas_seq_get(x, k);
  			}
  			s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(y, j), v));
  		}
  		*jas_seq_getref(z, i) = s;
  	}
  
  	return z;
  }
  