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
|
// Copyright 2021 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "DiscIO/GameModDescriptor.h"
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include <picojson.h>
#include "Common/IOFile.h"
#include "Common/MathUtil.h"
#include "Common/StringUtil.h"
namespace DiscIO
{
static std::string MakeAbsolute(const std::string& directory, const std::string& path)
{
#ifdef _WIN32
return PathToString(StringToPath(directory) / StringToPath(path));
#else
if (StringBeginsWith(path, "/"))
return path;
return directory + "/" + path;
#endif
}
std::optional<GameModDescriptor> ParseGameModDescriptorFile(const std::string& filename)
{
::File::IOFile f(filename, "rb");
if (!f)
return std::nullopt;
std::vector<char> data;
data.resize(f.GetSize());
if (!f.ReadBytes(data.data(), data.size()))
return std::nullopt;
#ifdef _WIN32
std::string path = ReplaceAll(filename, "\\", "/");
#else
const std::string& path = filename;
#endif
return ParseGameModDescriptorString(std::string_view(data.data(), data.size()), path);
}
static std::vector<GameModDescriptorRiivolutionPatchOption>
ParseRiivolutionOptions(const picojson::array& array)
{
std::vector<GameModDescriptorRiivolutionPatchOption> options;
for (const auto& option_object : array)
{
if (!option_object.is<picojson::object>())
continue;
auto& option = options.emplace_back();
for (const auto& [key, value] : option_object.get<picojson::object>())
{
if (key == "section-name" && value.is<std::string>())
option.section_name = value.get<std::string>();
else if (key == "option-id" && value.is<std::string>())
option.option_id = value.get<std::string>();
else if (key == "option-name" && value.is<std::string>())
option.option_name = value.get<std::string>();
else if (key == "choice" && value.is<double>())
option.choice = MathUtil::SaturatingCast<u32>(value.get<double>());
}
}
return options;
}
static GameModDescriptorRiivolution ParseRiivolutionObject(const std::string& json_directory,
const picojson::object& object)
{
GameModDescriptorRiivolution r;
for (const auto& [element_key, element_value] : object)
{
if (element_key == "patches" && element_value.is<picojson::array>())
{
for (const auto& patch_object : element_value.get<picojson::array>())
{
if (!patch_object.is<picojson::object>())
continue;
auto& patch = r.patches.emplace_back();
for (const auto& [key, value] : patch_object.get<picojson::object>())
{
if (key == "xml" && value.is<std::string>())
patch.xml = MakeAbsolute(json_directory, value.get<std::string>());
else if (key == "root" && value.is<std::string>())
patch.root = MakeAbsolute(json_directory, value.get<std::string>());
else if (key == "options" && value.is<picojson::array>())
patch.options = ParseRiivolutionOptions(value.get<picojson::array>());
}
}
}
}
return r;
}
std::optional<GameModDescriptor> ParseGameModDescriptorString(std::string_view json,
std::string_view json_path)
{
std::string json_directory;
SplitPath(json_path, &json_directory, nullptr, nullptr);
picojson::value json_root;
std::string err;
picojson::parse(json_root, json.begin(), json.end(), &err);
if (!err.empty())
return std::nullopt;
if (!json_root.is<picojson::object>())
return std::nullopt;
GameModDescriptor descriptor;
bool is_game_mod_descriptor = false;
bool is_valid_version = false;
for (const auto& [key, value] : json_root.get<picojson::object>())
{
if (key == "type" && value.is<std::string>())
{
is_game_mod_descriptor = value.get<std::string>() == "dolphin-game-mod-descriptor";
}
else if (key == "version" && value.is<double>())
{
is_valid_version = value.get<double>() == 1.0;
}
else if (key == "base-file" && value.is<std::string>())
{
descriptor.base_file = MakeAbsolute(json_directory, value.get<std::string>());
}
else if (key == "display-name" && value.is<std::string>())
{
descriptor.display_name = value.get<std::string>();
}
else if (key == "banner" && value.is<std::string>())
{
descriptor.banner = MakeAbsolute(json_directory, value.get<std::string>());
}
else if (key == "riivolution" && value.is<picojson::object>())
{
descriptor.riivolution =
ParseRiivolutionObject(json_directory, value.get<picojson::object>());
}
}
if (!is_game_mod_descriptor || !is_valid_version)
return std::nullopt;
return descriptor;
}
} // namespace DiscIO
|
