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elene@5
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1 #include <ctype.h>
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elene@5
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2 #include <errno.h>
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elene@4
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3 #include <stdio.h>
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elene@5
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4 #include <string.h>
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elene@5
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5
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elene@5
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6 #include <string>
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elene@5
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7 #include <vector>
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elene@4
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8
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elene@3
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9 #include "volume.h"
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elene@4
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10
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elene@5
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11 static char *strip_whitespaces(char *buf);
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elene@5
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12
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elene@4
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13 Volume::Volume()
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elene@4
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14 {
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elene@4
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15 width = height = 0;
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elene@5
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16 zaspect = 1;
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elene@4
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17 }
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elene@4
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18
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elene@4
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19 bool Volume::load_volume(const char *fname)
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elene@4
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20 {
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elene@5
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21 FILE *fp = fopen(fname, "r");
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elene@5
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22 if(!fp) {
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elene@5
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23 fprintf(stderr, "Failed to open file: %s: %s\n", fname, strerror(errno));
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elene@5
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24 return false;
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elene@5
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25 }
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elene@5
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26
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elene@5
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27 char buf[512];
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elene@5
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28 if(!fgets(buf, sizeof buf, fp)) {
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elene@5
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29 fprintf(stderr, "Empty file: %s.\n", fname);
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elene@5
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30 return false;
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elene@5
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31 }
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elene@5
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32 if(strstr(buf, "VOLUME") != buf) {
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elene@5
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33 fprintf(stderr, "Invalid volume file format: %s\n", fname);
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elene@5
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34 return false;
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elene@5
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35 }
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elene@5
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36
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elene@5
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37 bool reading_slices = false;
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elene@5
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38 std::vector<std::string> img_fnames;
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elene@5
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39
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elene@5
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40 while(fgets(buf, sizeof buf, fp)) {
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elene@5
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41 char *line = strip_whitespaces(buf);
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elene@5
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42 if(!line || *line == 0 || *line == '#')
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elene@5
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43 continue;
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elene@5
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44
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elene@5
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45 if(reading_slices == false) {
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elene@5
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46 if(strcmp(line, "SLICES") == 0)
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elene@5
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47 reading_slices = true;
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elene@5
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48
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elene@5
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49 sscanf(line, "zaspect = %f", &zaspect);
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elene@5
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50 }
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elene@5
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51 else {
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elene@5
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52 img_fnames.push_back(line);
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elene@5
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53 }
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elene@5
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54 }
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elene@5
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55
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elene@5
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56 fclose(fp);
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elene@5
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57
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elene@5
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58 for(size_t i=0; i<img_fnames.size(); i++) {
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elene@5
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59 Image img;
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elene@5
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60 if(img.load(img_fnames[i].c_str())) {
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elene@5
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61 push_slice(std::move(img));
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elene@5
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62 }
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elene@5
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63 else {
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elene@5
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64 fprintf(stderr, "Failed to load slice: %s\n", img_fnames[i].c_str());
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elene@5
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65 }
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elene@5
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66 }
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elene@5
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67
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elene@4
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68 return true;
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elene@4
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69 }
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elene@4
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70
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elene@4
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71 bool Volume::push_slice(Image &&slice)
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elene@4
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72 {
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elene@4
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73 if(slices.empty()) {
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elene@4
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74 width = slice.get_width();
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elene@4
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75 height = slice.get_height();
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elene@4
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76 }
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elene@4
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77 else {
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elene@4
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78 if(width != slice.get_width() || height != slice.get_height()) {
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elene@4
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79 fprintf(stderr, "failed to load slice no: %d\n", (int)slices.size() + 1);
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elene@4
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80 return false;
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elene@4
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81 }
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elene@4
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82 }
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elene@4
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83
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elene@4
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84 slices.push_back(slice);
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elene@4
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85 return true;
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elene@4
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86 }
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elene@5
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87
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elene@5
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88 void Volume::draw()
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elene@5
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89 {
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elene@5
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90 }
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elene@5
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91
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elene@5
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92 static char *strip_whitespaces(char *buf)
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elene@5
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93 {
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elene@5
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94 while(*buf && isspace(*buf))
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elene@5
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95 buf++;
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elene@5
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96
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elene@5
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97 if(!*buf)
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elene@5
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98 return 0;
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elene@5
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99
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elene@5
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100 char *end = buf + strlen(buf) - 1;
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elene@5
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101 while(end > buf && isspace(*end))
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elene@5
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102 end--;
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elene@5
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103 end[1] = 0;
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elene@5
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104 return buf;
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elene@5
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105 }
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