GCC Code Coverage Report


Directory: ./
File: lib/geogram/image/image_serializer_pgm.cpp
Date: 2026-09-07 02:25:23
Exec Total Coverage
Lines: 2 25 8.0%
Functions: 1 3 33.3%
Branches: 0 32 0.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2000-2022 Inria
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * * Neither the name of the ALICE Project-Team nor the names of its
14 * contributors may be used to endorse or promote products derived from this
15 * software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 *
29 * Contact: Bruno Levy
30 *
31 * https://www.inria.fr/fr/bruno-levy
32 *
33 * Inria,
34 * Domaine de Voluceau,
35 * 78150 Le Chesnay - Rocquencourt
36 * FRANCE
37 *
38 */
39
40 #include <geogram/image/image_serializer_pgm.h>
41 #include <geogram/image/image.h>
42 #include <geogram/basic/logger.h>
43
44 #include <sstream>
45 #include <string.h>
46
47 namespace GEO {
48
49 /***************************************************************/
50
51 Image* ImageSerializer_pgm::serialize_read(const std::string& file_name) {
52 FILE* f = fopen(file_name.c_str(),"rb");
53 if(f == nullptr) {
54 Logger::err("Image")<< file_name << ": could not open file"
55 << std::endl;
56 return nullptr;
57 }
58
59 char magic[255];
60 int width, height, maxval;
61 if(
62 (fscanf(f, "%s", magic) != 1) ||
63 (strcmp(magic,"P5") != 0) ||
64 (fscanf(f, "%d", &width) != 1) ||
65 (fscanf(f, "%d", &height) != 1) ||
66 (fscanf(f, "%d", &maxval) != 1)
67
68 ) {
69 Logger::err("PGM") << "Invalid header" << std::endl;
70 return nullptr;
71 }
72
73 Image* result = nullptr;
74 if(maxval == 255) {
75 result = new Image(Image::GRAY, Image::BYTE, index_t(width), index_t(height));
76 } else if(maxval == 65535) {
77 result = new Image(Image::GRAY, Image::INT16, index_t(width), index_t(height));
78 } else {
79 Logger::err("PGM") << maxval << " unsupported maxval"
80 << std::endl;
81 return nullptr;
82 }
83 size_t nbread = fread(result->base_mem(), 1, result->bytes(), f);
84 if(nbread != result->bytes()) {
85 Logger::warn("PGM") << "file is truncated"
86 << std::endl;
87 }
88 fclose(f);
89 return result;
90 }
91
92 bool ImageSerializer_pgm::binary() const {
93 return true;
94 }
95
96
97 249 bool ImageSerializer_pgm::read_supported() const {
98 249 return true ;
99 }
100
101 /**************************************************************/
102
103 }
104