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

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