1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* libvisio
* Version: MPL 1.1 / GPLv2+ / LGPLv2+
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License or as specified alternatively below. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Major Contributor(s):
* Copyright (C) 2011 Fridrich Strba <fridrich.strba@bluewin.ch>
* Copyright (C) 2011 Eilidh McAdam <tibbylickle@gmail.com>
*
*
* All Rights Reserved.
*
* For minor contributions see the git repository.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPLv2+"), or
* the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
* in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
* instead of those above.
*/
#include <string>
#include "VSDInternalStream.h"
#include "libvisio_utils.h"
#include <boost/archive/iterators/binary_from_base64.hpp>
#include <boost/archive/iterators/remove_whitespace.hpp>
#include <boost/archive/iterators/transform_width.hpp>
uint8_t libvisio::readU8(WPXInputStream *input)
{
if (!input || input->atEOS())
{
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
unsigned long numBytesRead;
uint8_t const *p = input->read(sizeof(uint8_t), numBytesRead);
if (p && numBytesRead == sizeof(uint8_t))
return *(uint8_t const *)(p);
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
uint16_t libvisio::readU16(WPXInputStream *input)
{
if (!input || input->atEOS())
{
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
unsigned long numBytesRead;
uint8_t const *p = input->read(sizeof(uint16_t), numBytesRead);
if (p && numBytesRead == sizeof(uint16_t))
return (uint16_t)p[0]|((uint16_t)p[1]<<8);
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
int16_t libvisio::readS16(WPXInputStream *input)
{
return (int16_t)readU16(input);
}
uint32_t libvisio::readU32(WPXInputStream *input)
{
if (!input || input->atEOS())
{
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
unsigned long numBytesRead;
uint8_t const *p = input->read(sizeof(uint32_t), numBytesRead);
if (p && numBytesRead == sizeof(uint32_t))
return (uint32_t)p[0]|((uint32_t)p[1]<<8)|((uint32_t)p[2]<<16)|((uint32_t)p[3]<<24);
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
int32_t libvisio::readS32(WPXInputStream *input)
{
return (int32_t)readU32(input);
}
uint64_t libvisio::readU64(WPXInputStream *input)
{
if (!input || input->atEOS())
{
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
unsigned long numBytesRead;
uint8_t const *p = input->read(sizeof(uint64_t), numBytesRead);
if (p && numBytesRead == sizeof(uint64_t))
return (uint64_t)p[0]|((uint64_t)p[1]<<8)|((uint64_t)p[2]<<16)|((uint64_t)p[3]<<24)|((uint64_t)p[4]<<32)|((uint64_t)p[5]<<40)|((uint64_t)p[6]<<48)|((uint64_t)p[7]<<56);
VSD_DEBUG_MSG(("Throwing EndOfStreamException\n"));
throw EndOfStreamException();
}
double libvisio::readDouble(WPXInputStream *input)
{
union
{
uint64_t u;
double d;
} tmpUnion;
tmpUnion.u = readU64(input);
return tmpUnion.d;
}
void libvisio::appendFromBase64(WPXBinaryData &data, const unsigned char *base64Data, size_t base64DataLength)
{
std::string base64String((const char *)base64Data, base64DataLength);
typedef boost::archive::iterators::transform_width<
boost::archive::iterators::binary_from_base64<
boost::archive::iterators::remove_whitespace< std::string::const_iterator > >, 8, 6 > base64_decoder;
std::vector<unsigned char> buffer;
std::copy(base64_decoder(base64String.begin()), base64_decoder(base64String.end()), std::back_inserter(buffer));
if (!buffer.empty())
data.append(&buffer[0], buffer.size());
}
const ::WPXString libvisio::getColourString(const Colour &c)
{
::WPXString sColour;
sColour.sprintf("#%.2x%.2x%.2x", c.r, c.g, c.b);
return sColour;
}
/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
|
