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Tina6/tina-libs/tina/file/fileEdges_read.c

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  1 /**********
  2  * 
  3  * Copyright (c) 2003, Division of Imaging Science and Biomedical Engineering,
  4  * University of Manchester, UK.  All rights reserved.
  5  * 
  6  * Redistribution and use in source and binary forms, with or without modification, 
  7  * are permitted provided that the following conditions are met:
  8  * 
  9  *   . Redistributions of source code must retain the above copyright notice, 
 10  *     this list of conditions and the following disclaimer.
 11  *    
 12  *   . Redistributions in binary form must reproduce the above copyright notice,
 13  *     this list of conditions and the following disclaimer in the documentation 
 14  *     and/or other materials provided with the distribution.
 15  * 
 16  *   . Neither the name of the University of Manchester nor the names of its
 17  *     contributors may be used to endorse or promote products derived from this 
 18  *     software without specific prior written permission.
 19  * 
 20  * 
 21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 31  * POSSIBILITY OF SUCH DAMAGE.
 32  *
 33  **********
 34  * 
 35  * Program :    TINA
 36  * File    :  $Source: /home/tina/cvs/tina-libs/tina/file/fileEdges_read.c,v $
 37  * Date    :  $Date: 2009/03/19 18:36:26 $
 38  * Version :  $Revision: 1.4 $
 39  * CVS Id  :  $Id: fileEdges_read.c,v 1.4 2009/03/19 18:36:26 paul Exp $
 40  *
 41  * Author  :  Legacy TINA
 42  *
 43  * Notes   :
 44  * 
 45  *
 46  *********
 47 */
 48 
 49 #include "fileEdges_read.h"
 50 
 51 #if HAVE_CONFIG_H
 52   #include <config.h>
 53 #endif
 54 
 55 #include <stdio.h>
 56 #include <tina/sys/sysDef.h>
 57 #include <tina/sys/sysPro.h>
 58 #include <tina/math/mathDef.h>
 59 #include <tina/math/mathPro.h>
 60 #include <tina/image/imgPro.h>
 61 #include <tina/image/imgDef.h>
 62 #include <tina/geometry/geomDef.h>
 63 #include <tina/geometry/geomPro.h>
 64 #include <tina/vision/visDef.h>
 65 #include <tina/vision/visPro.h>
 66 #include <tina/file/fileUtil_io.h>
 67 
 68 Imrect *edges_read_stream(int height, int width, Imregion * region, FILE *
 69                                   stream, const char *pathname)
 70 {
 71     Imrect *edge_image;
 72     float   (*buffer)[4];
 73     int     count, i;
 74     unsigned int buffsize;
 75 
 76     if (1 != fread((char *) &count, sizeof(int), 1, stream))
 77     {
 78         errorf(non_fatal, "edges_read_stream: empty file: %s\n", pathname);
 79         return (NULL);
 80     }
 81     buffsize = count * sizeof(float[4]);
 82     buffer = (float (*)[4]) ralloc(buffsize);
 83     if (fread((char *) buffer, sizeof(float[4]), count, stream)
 84                       != (unsigned int) count)
 85     {
 86         errorf(non_fatal, "edges_read_stream: premature end of file: %s\n", pathname);
 87         rfree((void *) buffer);
 88         return (NULL);
 89     }
 90     edge_image = im_alloc(height, width, region, ptr_v);
 91     region = edge_image->region;
 92 
 93     for (i = 0; i < count; ++i)
 94     {
 95         Edgel  *eptr;
 96         extern int er_add_edge(Imrect * edgerect, Edgel * edge);
 97 
 98         float  *edge_buff = buffer[i];
 99 
100         if (!roi_inregion(region, (int) edge_buff[1], (int) edge_buff[0]))
101             continue;
102 
103         eptr = edge_alloc(EDGE_RAW);
104         eptr->pos = vec2(edge_buff[1], edge_buff[0]);
105         eptr->contrast = edge_buff[2];
106         eptr->orient = edge_buff[3];
107         (void) er_add_edge(edge_image, eptr);
108     }
109 
110     rfree((void *) buffer);
111     return (edge_image);
112 }
113 
114 Imrect *edges_read_file(const char *pathname, const int height, const int width,
115                                 Imregion * region)
116 {
117     FILE   *stream = fopen_2(pathname, "r");
118     Imrect *er = NULL;
119 
120     if (stream)
121     {
122         er = edges_read_stream(height, width, region, stream, pathname);
123         (void) fclose_2(stream, pathname);
124     }
125     return (er);
126 }
127 

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