-
Notifications
You must be signed in to change notification settings - Fork 49
/
Wad
200 lines (137 loc) · 3.85 KB
/
Wad
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
// -*- mode: c++ -*-
#ifndef __IMP_WAD__45443636
#define __IMP_WAD__45443636
#include <imp/Prelude>
#include <imp/util/Optional>
namespace imp {
namespace gfx {
class Image;
}
namespace wad {
enum struct Section;
class Lump;
class LumpIterator;
void init();
bool mount(StringView path);
void merge();
bool have_lump(StringView name);
Optional<Lump> find(StringView name);
Optional<Lump> find(std::size_t index);
Optional<Lump> find(Section section, std::size_t index);
LumpIterator section(Section s);
std::size_t section_size(Section s);
class LumpHash {
uint32 hash_ {};
public:
LumpHash() = default;
LumpHash(LumpHash&&) = default;
LumpHash(const LumpHash&) = default;
LumpHash(StringView str):
hash_(1315423911)
{
for (int i = 0; i < 8 && str[i]; ++i) {
int c = str[i];
hash_ ^= (hash_ << 5) + toupper(c) + (hash_ >> 2);
}
hash_ &= 0xffff;
}
LumpHash(uint32 hash):
hash_(hash) {}
uint32 get() const
{ return hash_; }
LumpHash& operator=(LumpHash&&) = default;
LumpHash& operator=(const LumpHash&) = default;
bool operator<(LumpHash other) const
{ return hash_ < other.hash_; }
};
enum struct Section {
normal,
textures,
graphics,
sprites,
sounds
};
constexpr size_t num_sections = 5;
class BasicLump {
std::size_t id_;
public:
BasicLump(std::size_t id):
id_(id) {}
virtual ~BasicLump() {}
StringView lump_name() const;
std::size_t lump_index() const;
Section section() const;
std::size_t section_index() const;
virtual std::istream& stream() = 0;
virtual String as_bytes();
virtual gfx::Image as_image();
};
class Lump {
UniquePtr<BasicLump> data_ {};
public:
Lump() = default;
Lump(UniquePtr<BasicLump> data):
data_(std::move(data)) {}
Lump(Lump&&) = default;
Lump(const Lump&) = delete;
Lump& operator=(Lump&&) = default;
Lump& operator=(const Lump&) = delete;
StringView lump_name() const
{ return data_->lump_name(); }
std::size_t lump_index() const
{ return data_->lump_index(); }
Section section() const
{ return data_->section(); }
std::size_t section_index() const
{ return data_->section_index(); }
std::istream& stream()
{ return data_->stream(); }
String as_bytes()
{ return data_->as_bytes(); }
char* bytes_ptr()
{
auto bytes = as_bytes();
char *memory = new char[bytes.size()];
std::copy(bytes.begin(), bytes.end(), memory);
return memory;
}
gfx::Image as_image();
};
class LumpIterator {
std::size_t index_ {};
Section section_ {};
Lump lump_;
public:
LumpIterator(Section section);
Lump& operator*();
Lump* operator->()
{ return &**this; }
bool has_next() const;
void next();
operator bool() const
{ return has_next(); }
LumpIterator& operator++()
{
next();
return *this;
}
};
}
inline StringView to_string(wad::Section s)
{
using Section = wad::Section;
switch (s) {
case Section::normal:
return "normal"_sv;
case Section::textures:
return "textures"_sv;
case Section::graphics:
return "graphics"_sv;
case Section::sprites:
return "sprites"_sv;
case Section::sounds:
return "sounds"_sv;
}
}
}
#endif //__IMP_WAD__45443636