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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
#include "pch.h"
#include "rpakfilesystem.h"
#include "modmanager.h"
#include "dedicated.h"
AUTOHOOK_INIT()
// there are more i'm just too lazy to add
struct PakLoadFuncs
{
void* unk0[2];
void* (*LoadPakSync)(const char* pPath, void* unknownSingleton, int flags);
int (*LoadPakAsync)(const char* pPath, void* unknownSingleton, int flags, void* callback0, void* callback1);
void* unk1[2];
void* (*UnloadPak)(int iPakHandle, void* callback);
void* unk2[17];
void* (*ReadFullFileFromDisk)(const char* pPath, void* a2);
};
PakLoadFuncs* g_pakLoadApi;
void** pUnknownPakLoadSingleton;
PakLoadManager* g_pPakLoadManager;
void PakLoadManager::LoadPakSync(const char* path)
{
g_pakLoadApi->LoadPakSync(path, *pUnknownPakLoadSingleton, 0);
}
void PakLoadManager::LoadPakAsync(const char* path, bool bMarkForUnload)
{
int handle = g_pakLoadApi->LoadPakAsync(path, *pUnknownPakLoadSingleton, 2, nullptr, nullptr);
if (bMarkForUnload)
m_pakHandlesToUnload.push_back(handle);
}
void PakLoadManager::UnloadPaks()
{
for (int pakHandle : m_pakHandlesToUnload)
g_pakLoadApi->UnloadPak(pakHandle, nullptr);
m_pakHandlesToUnload.clear();
}
void HandlePakAliases(char** map)
{
// convert the pak being loaded to it's aliased one, e.g. aliasing mp_hub_timeshift => sp_hub_timeshift
for (int64_t i = g_pModManager->m_loadedMods.size() - 1; i > -1; i--)
{
Mod* mod = &g_pModManager->m_loadedMods[i];
if (!mod->Enabled)
continue;
if (mod->RpakAliases.find(*map) != mod->RpakAliases.end())
{
*map = &mod->RpakAliases[*map][0];
return;
}
}
}
void LoadPreloadPaks()
{
// note, loading from ./ is necessary otherwise paks will load from gamedir/r2/paks
for (Mod& mod : g_pModManager->m_loadedMods)
{
if (!mod.Enabled)
continue;
// need to get a relative path of mod to mod folder
fs::path modPakPath("./" / mod.ModDirectory / "paks");
for (ModRpakEntry& pak : mod.Rpaks)
if (pak.m_bAutoLoad)
g_pPakLoadManager->LoadPakAsync((modPakPath / pak.m_sPakName).string().c_str(), false);
}
}
void LoadCustomMapPaks(char** pakName, bool* bNeedToFreePakName)
{
// whether the vanilla game has this rpak
bool bHasOriginalPak = fs::exists(fs::path("./r2/paks/Win64/") / *pakName);
// note, loading from ./ is necessary otherwise paks will load from gamedir/r2/paks
for (Mod& mod : g_pModManager->m_loadedMods)
{
if (!mod.Enabled)
continue;
// need to get a relative path of mod to mod folder
fs::path modPakPath("./" / mod.ModDirectory / "paks");
for (ModRpakEntry& pak : mod.Rpaks)
{
if (!pak.m_bAutoLoad && !pak.m_sPakName.compare(*pakName))
{
// if the game doesn't have the original pak, let it handle loading this one as if it was the one it was loading originally
if (!bHasOriginalPak)
{
std::string path = (modPakPath / pak.m_sPakName).string();
*pakName = new char[path.size() + 1];
strcpy(*pakName, &path[0]);
(*pakName)[path.size()] = '\0';
bHasOriginalPak = true;
*bNeedToFreePakName =
true; // we can't free this memory until we're done with the pak, so let whatever's calling this deal with it
}
else
g_pPakLoadManager->LoadPakAsync((modPakPath / pak.m_sPakName).string().c_str(), true);
}
}
}
}
HOOK(LoadPakAsyncHook, LoadPakAsync,
int,, (char* pPath, void* unknownSingleton, int flags, void* callback0, void* callback1),
{
HandlePakAliases(&pPath);
bool bNeedToFreePakName = false;
static bool bShouldLoadPaks = true;
if (bShouldLoadPaks)
{
// make a copy of the path for comparing to determine whether we should load this pak on dedi, before it could get overwritten by LoadCustomMapPaks
std::string originalPath(pPath);
// disable preloading while we're doing this
bShouldLoadPaks = false;
LoadPreloadPaks();
LoadCustomMapPaks(&pPath, &bNeedToFreePakName);
bShouldLoadPaks = true;
// do this after custom paks load and in bShouldLoadPaks so we only ever call this on the root pakload call
// todo: could probably add some way to flag custom paks to not be loaded on dedicated servers in rpak.json
if (IsDedicatedServer() && strncmp(&originalPath[0], "common", 6)) // dedicated only needs common and common_mp
{
spdlog::info("Not loading pak {} for dedicated server", originalPath);
return -1;
}
}
int ret = LoadPakAsync(pPath, unknownSingleton, flags, callback0, callback1);
spdlog::info("LoadPakAsync {} {}", pPath, ret);
if (bNeedToFreePakName)
delete[] pPath;
return ret;
})
HOOK(UnloadPakHook, UnloadPak,
void*,, (int iPakHandle, void* callback),
{
static bool bShouldUnloadPaks = true;
if (bShouldUnloadPaks)
{
bShouldUnloadPaks = false;
g_pPakLoadManager->UnloadPaks();
bShouldUnloadPaks = true;
}
spdlog::info("UnloadPak {}", iPakHandle);
return UnloadPak(iPakHandle, callback);
})
// we hook this exclusively for resolving stbsp paths, but seemingly it's also used for other stuff like vpk and rpak loads
// possibly just async loading altogether?
HOOK(ReadFullFileFromDiskHook, ReadFullFileFromDisk,
void*, , (const char* pPath, void* a2),
{
fs::path path(pPath);
char* allocatedNewPath = nullptr;
if (path.extension() == ".stbsp")
{
fs::path filename = path.filename();
spdlog::info("LoadStreamBsp: {}", filename.string());
// resolve modded stbsp path so we can load mod stbsps
auto modFile = g_pModManager->m_modFiles.find(g_pModManager->NormaliseModFilePath(fs::path("maps" / filename)));
if (modFile != g_pModManager->m_modFiles.end())
{
// need to allocate a new string for this
std::string newPath = (modFile->second.owningMod->ModDirectory / "mod" / modFile->second.path).string();
allocatedNewPath = new char[newPath.size() + 1];
strncpy(allocatedNewPath, newPath.c_str(), newPath.size());
allocatedNewPath[newPath.size()] = '\0';
pPath = allocatedNewPath;
}
}
void* ret = ReadFullFileFromDisk(pPath, a2);
if (allocatedNewPath)
delete[] allocatedNewPath;
return ret;
})
ON_DLL_LOAD("engine.dll", RpakFilesystem, [](HMODULE baseAddress)
{
AUTOHOOK_DISPATCH();
g_pPakLoadManager = new PakLoadManager;
g_pakLoadApi = *(PakLoadFuncs**)((char*)baseAddress + 0x5BED78);
pUnknownPakLoadSingleton = (void**)((char*)baseAddress + 0x7C5E20);
LoadPakAsyncHook.Dispatch(g_pakLoadApi->LoadPakAsync);
UnloadPakHook.Dispatch(g_pakLoadApi->UnloadPak);
ReadFullFileFromDiskHook.Dispatch(g_pakLoadApi->ReadFullFileFromDisk);
})
|
