libcdr_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 part of the libcdr 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 __LIBCDR_UTILS_H__
11#define __LIBCDR_UTILS_H__
12
13#ifdef HAVE_CONFIG_H
14#include "config.h"
15#endif
16
17#include <math.h>
18#include <memory>
19#include <vector>
20
21#include <boost/cstdint.hpp>
22
23#include <librevenge-stream/librevenge-stream.h>
24#include <librevenge/librevenge.h>
25
26#ifndef M_PI
27#define M_PI 3.14159265358979323846
28#endif
29
30#define CDR_EPSILON 1E-6
31#define CDR_ALMOST_ZERO(m) (fabs(m) <= CDR_EPSILON)
32
33#if defined(HAVE_FUNC_ATTRIBUTE_FORMAT)
34# define CDR_ATTRIBUTE_PRINTF(fmt, arg) __attribute__((__format__(__printf__, fmt, arg)))
35#else
36# define CDR_ATTRIBUTE_PRINTF(fmt, arg)
37#endif
38
39#if defined(HAVE_CLANG_ATTRIBUTE_FALLTHROUGH)
40# define CDR_FALLTHROUGH [[clang::fallthrough]]
41#elif defined(HAVE_GCC_ATTRIBUTE_FALLTHROUGH)
42# define CDR_FALLTHROUGH __attribute__((fallthrough))
43#else
44# define CDR_FALLTHROUGH ((void) 0)
45#endif
46
47// do nothing with debug messages in a release compile
48#ifdef DEBUG
49 namespace libcdr
50{
51 void debugPrint(const char *format, ...) CDR_ATTRIBUTE_PRINTF(1, 2);
52}
53#define CDR_DEBUG_MSG(M) libcdr::debugPrint M
54#define CDR_DEBUG(M) M
55#else
56#define CDR_DEBUG_MSG(M)
57#define CDR_DEBUG(M)
58#endif
59
60 namespace libcdr
61{
62
63 struct CDRDummyDeleter
64{
65 void operator()(void *) const {}
66};
67
68 template<typename T, typename... Args>
69std::unique_ptr<T> make_unique(Args &&... args)
70{
71 return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
72}
73
74uint8_t readU8(librevenge::RVNGInputStream *input, bool bigEndian=false);
75uint16_t readU16(librevenge::RVNGInputStream *input, bool bigEndian=false);
76uint32_t readU32(librevenge::RVNGInputStream *input, bool bigEndian=false);
77uint64_t readU64(librevenge::RVNGInputStream *input, bool bigEndian=false);
78int32_t readS32(librevenge::RVNGInputStream *input, bool bigEndian=false);
79int16_t readS16(librevenge::RVNGInputStream *input, bool bigEndian=false);
80
81 double readDouble(librevenge::RVNGInputStream *input, bool bigEndian=false);
82
83 double readFixedPoint(librevenge::RVNGInputStream *input, bool bigEndian=false);
84
85 unsigned long getLength(librevenge::RVNGInputStream *input);
86 unsigned long getRemainingLength(librevenge::RVNGInputStream *input);
87
88 int cdr_round(double d);
89
90 void writeU16(librevenge::RVNGBinaryData &buffer, const int value);
91 void writeU32(librevenge::RVNGBinaryData &buffer, const int value);
92 void appendCharacters(librevenge::RVNGString &text, std::vector<unsigned char> characters, unsigned short charset);
93 void appendCharacters(librevenge::RVNGString &text, std::vector<unsigned char> characters);
94 void appendUTF8Characters(librevenge::RVNGString &text, std::vector<unsigned char> characters);
95
96#ifdef DEBUG
97 const char *toFourCC(unsigned value, bool bigEndian=false);
98#endif
99
100 class EndOfStreamException
101{
102};
103
104 class GenericException
105{
106};
107
108 class UnknownPrecisionException
109{
110};
111
112 class EncodingException
113{
114};
115
116} // namespace libcdr
117
118#endif // __LIBCDR_UTILS_H__
119/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
libcdr::EncodingException
Definition: libcdr_utils.h:113
libcdr::EndOfStreamException
Definition: libcdr_utils.h:101
libcdr::GenericException
Definition: libcdr_utils.h:105
libcdr::UnknownPrecisionException
Definition: libcdr_utils.h:109
CDR_ATTRIBUTE_PRINTF
#define CDR_ATTRIBUTE_PRINTF(fmt, arg)
Definition: libcdr_utils.h:36
libcdr
Definition: CDRDocument.h:17
libcdr::readDouble
double readDouble(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:249
libcdr::appendUTF8Characters
void appendUTF8Characters(librevenge::RVNGString &text, std::vector< unsigned char > characters)
Definition: libcdr_utils.cpp:465
libcdr::readU8
uint8_t readU8(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:163
libcdr::readFixedPoint
double readFixedPoint(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:262
libcdr::writeU32
void writeU32(librevenge::RVNGBinaryData &buffer, const int value)
Definition: libcdr_utils.cpp:317
libcdr::writeU16
void writeU16(librevenge::RVNGBinaryData &buffer, const int value)
Definition: libcdr_utils.cpp:311
libcdr::readU64
uint64_t readU64(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:229
libcdr::appendCharacters
void appendCharacters(librevenge::RVNGString &text, std::vector< unsigned char > characters, unsigned short charset)
Definition: libcdr_utils.cpp:325
libcdr::getLength
unsigned long getLength(librevenge::RVNGInputStream *input)
Definition: libcdr_utils.cpp:270
libcdr::cdr_round
int cdr_round(double d)
Definition: libcdr_utils.cpp:306
libcdr::readS32
int32_t readS32(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:224
libcdr::readU32
uint32_t readU32(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:204
libcdr::make_unique
std::unique_ptr< T > make_unique(Args &&... args)
Definition: libcdr_utils.h:69
libcdr::readU16
uint16_t readU16(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:179
libcdr::readS16
int16_t readS16(librevenge::RVNGInputStream *input, bool bigEndian=false)
Definition: libcdr_utils.cpp:199
libcdr::getRemainingLength
unsigned long getRemainingLength(librevenge::RVNGInputStream *input)
Definition: libcdr_utils.cpp:301
libcdr::CDRDummyDeleter
Definition: libcdr_utils.h:64
libcdr::CDRDummyDeleter::operator()
void operator()(void *) const
Definition: libcdr_utils.h:65