libzmf_utils.h
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1/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2/*
3 * This file is a part of the libzmf project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 */
9
10#ifndef LIBZMF_UTILS_H_INCLUDED
11#define LIBZMF_UTILS_H_INCLUDED
12
13#ifdef HAVE_CONFIG_H
14#include "config.h"
15#endif
16
17#include <cmath>
18#include <memory>
19#include <string>
20#include <bitset>
21
22#include <boost/cstdint.hpp>
23
24#include <librevenge-stream/librevenge-stream.h>
25#include <librevenge/librevenge.h>
26
27#ifdef DEBUG
28#include <boost/type_index.hpp>
29#include <regex>
30#endif
31
32#define ZMF_EPSILON 1E-6
33#define ZMF_ALMOST_ZERO(m) (std::fabs(m) <= ZMF_EPSILON)
34
35#ifdef DEBUG
36
37#if defined(HAVE_FUNC_ATTRIBUTE_FORMAT)
38#define ZMF_ATTRIBUTE_PRINTF(fmt, arg) __attribute__((__format__(__printf__, fmt, arg)))
39#else
40#define ZMF_ATTRIBUTE_PRINTF(fmt, arg)
41#endif
42
43#define ZMF_DEBUG_MSG(M) libzmf::debugPrint M
44#define ZMF_DEBUG(M) M
45
46#else // !DEBUG
47
48// do nothing with debug messages in a release compile
49#define ZMF_DEBUG_MSG(M)
50#define ZMF_DEBUG(M)
51
52#endif // DEBUG
53
54#define ZMF_NUM_ELEMENTS(array) sizeof(array)/sizeof(array[0])
55
56namespace libzmf
57{
58
59template<typename T>
60std::string prettyTypeName()
61{
62#ifdef DEBUG
63 auto str = boost::typeindex::type_id<T>().pretty_name();
64 str = std::regex_replace(str, std::regex("libzmf::"), "");
65 str = std::regex_replace(str, std::regex("boost::"), "");
66 return str;
67#else
68 return "";
69#endif
70}
71
72typedef std::shared_ptr<librevenge::RVNGInputStream> RVNGInputStreamPtr;
73
75{
76 void operator()(void *) {}
77};
78
79uint8_t readU8(const RVNGInputStreamPtr &input, bool = false);
80uint16_t readU16(const RVNGInputStreamPtr &input, bool bigEndian=false);
81uint32_t readU32(const RVNGInputStreamPtr &input, bool bigEndian=false);
82uint64_t readU64(const RVNGInputStreamPtr &input, bool bigEndian=false);
83int32_t readS32(const RVNGInputStreamPtr &input, bool bigEndian=false);
84
85float readFloat(const RVNGInputStreamPtr &input, bool bigEndian=false);
86
87const unsigned char *readNBytes(const RVNGInputStreamPtr &input, unsigned long numBytes);
88
89void skip(const RVNGInputStreamPtr &input, unsigned long numBytes);
90
91void seek(const RVNGInputStreamPtr &input, unsigned long pos);
92void seekRelative(const RVNGInputStreamPtr &input, long pos);
93
94unsigned long getLength(const RVNGInputStreamPtr &input);
95
96void appendCharacters(librevenge::RVNGString &text, const unsigned char *characters, uint32_t size,
97 const char *encoding);
98
99void writeU16(librevenge::RVNGBinaryData &buffer, const int value);
100void writeU32(librevenge::RVNGBinaryData &buffer, const int value);
101
102double rad2deg(double value);
103double normalizeAngle(double radAngle);
104
105template<std::size_t numBytes>
106std::bitset<numBytes * 8> bytesToBitset(const uint8_t *data)
107{
108 std::bitset<numBytes * 8> b;
109
110 for (std::size_t i = 0; i < numBytes; ++i)
111 {
112 uint8_t cur = data[i];
113 std::size_t offset = i * 8;
114
115 for (int j = 0; j < 8; ++j)
116 {
117 b[offset++] = cur & 1;
118 cur >>= 1;
119 }
120 }
121
122 return b;
123}
124
125template<typename T>
126double um2in(T micrometers)
127{
128 return micrometers / 1000.0 / 25.4;
129}
130
131#ifdef DEBUG
132void debugPrint(const char *format, ...) ZMF_ATTRIBUTE_PRINTF(1, 2);
133#endif
134
139
141{
142};
143
144}
145
146#endif // LIBZMF_UTILS_H_INCLUDED
147
148/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
Definition BMIHeader.cpp:14
double um2in(T micrometers)
Definition libzmf_utils.h:126
uint32_t readU32(const RVNGInputStreamPtr &input, bool bigEndian)
Definition libzmf_utils.cpp:116
uint64_t readU64(const RVNGInputStreamPtr &input, bool bigEndian)
Definition libzmf_utils.cpp:132
std::string prettyTypeName()
Definition libzmf_utils.h:60
const unsigned char * readNBytes(const RVNGInputStreamPtr &input, const unsigned long numBytes)
Definition libzmf_utils.cpp:161
void seek(const RVNGInputStreamPtr &input, const unsigned long pos)
Definition libzmf_utils.cpp:181
void writeU32(librevenge::RVNGBinaryData &buffer, const int value)
Definition libzmf_utils.cpp:260
double rad2deg(double value)
Definition libzmf_utils.cpp:268
void seekRelative(const RVNGInputStreamPtr &input, const long pos)
Definition libzmf_utils.cpp:189
double normalizeAngle(double radAngle)
Definition libzmf_utils.cpp:275
uint8_t readU8(const RVNGInputStreamPtr &input, bool)
Definition libzmf_utils.cpp:88
void writeU16(librevenge::RVNGBinaryData &buffer, const int value)
Definition libzmf_utils.cpp:254
void appendCharacters(librevenge::RVNGString &text, const unsigned char *characters, uint32_t size, const char *encoding)
Definition libzmf_utils.cpp:221
void skip(const RVNGInputStreamPtr &input, unsigned long numBytes)
Definition libzmf_utils.cpp:174
uint16_t readU16(const RVNGInputStreamPtr &input, bool bigEndian)
Definition libzmf_utils.cpp:100
unsigned long getLength(const RVNGInputStreamPtr &input)
Definition libzmf_utils.cpp:197
std::bitset< numBytes *8 > bytesToBitset(const uint8_t *data)
Definition libzmf_utils.h:106
int32_t readS32(const RVNGInputStreamPtr &input, bool bigEndian)
Definition libzmf_utils.cpp:148
std::shared_ptr< librevenge::RVNGInputStream > RVNGInputStreamPtr
Definition libzmf_utils.h:72
float readFloat(const RVNGInputStreamPtr &input, bool bigEndian)
Definition libzmf_utils.cpp:153
Definition libzmf_utils.h:136
EndOfStreamException()
Definition libzmf_utils.cpp:297
Definition libzmf_utils.h:141
Definition libzmf_utils.h:75
void operator()(void *)
Definition libzmf_utils.h:76

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