#include "pch.h" #include "rpakfilesystem.h" #include "hookutils.h" #include "modmanager.h" typedef void* (*LoadCommonPaksForMapType)(char* map); LoadCommonPaksForMapType LoadCommonPaksForMap; typedef void* (*LoadPakSyncType)(const char* path, void* unknownSingleton, int flags); typedef int (*LoadPakAsyncType)(const char* path, void* unknownSingleton, int flags, void* callback0, void* callback1); // there are more i'm just too lazy to add struct PakLoadFuncs { void* unknown[2]; LoadPakSyncType LoadPakSync; LoadPakAsyncType LoadPakAsync; }; PakLoadFuncs* g_pakLoadApi; void** pUnknownPakLoadSingleton; PakLoadManager* g_PakLoadManager; void PakLoadManager::LoadPakSync(const char* path) { g_pakLoadApi->LoadPakSync(path, *pUnknownPakLoadSingleton, 0); } void PakLoadManager::LoadPakAsync(const char* path) { g_pakLoadApi->LoadPakAsync(path, *pUnknownPakLoadSingleton, 2, nullptr, nullptr); } 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_ModManager->m_loadedMods.size() - 1; i > -1; i--) { Mod* mod = &g_ModManager->m_loadedMods[i]; if (!mod->Enabled) continue; if (mod->RpakAliases.find(*map) != mod->RpakAliases.end()) { *map = &mod->RpakAliases[*map][0]; return; } } } bool bShouldPreload = true; void LoadPreloadPaks() { // disable preloading while we're doing this bShouldPreload = false; // note, loading from ./ is necessary otherwise paks will load from gamedir/r2/paks for (Mod& mod : g_ModManager->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_PakLoadManager->LoadPakAsync((modPakPath / pak.m_sPakPath).string().c_str()); } bShouldPreload = true; } LoadPakSyncType LoadPakSyncOriginal; void* LoadPakSyncHook(char* path, void* unknownSingleton, int flags) { HandlePakAliases(&path); // note: we don't handle loading any preloaded custom paks synchronously since LoadPakSync is never actually called in retail, just load // them async instead LoadPreloadPaks(); spdlog::info("LoadPakSync {}", path); return LoadPakSyncOriginal(path, unknownSingleton, flags); } LoadPakAsyncType LoadPakAsyncOriginal; int LoadPakAsyncHook(char* path, void* unknownSingleton, int flags, void* callback0, void* callback1) { HandlePakAliases(&path); if (bShouldPreload) LoadPreloadPaks(); int ret = LoadPakAsyncOriginal(path, unknownSingleton, flags, callback0, callback1); spdlog::info("LoadPakAsync {} {}", path, ret); return ret; } void InitialiseEngineRpakFilesystem(HMODULE baseAddress) { g_PakLoadManager = new PakLoadManager; g_pakLoadApi = *(PakLoadFuncs**)((char*)baseAddress + 0x5BED78); pUnknownPakLoadSingleton = (void**)((char*)baseAddress + 0x7C5E20); HookEnabler hook; ENABLER_CREATEHOOK(hook, g_pakLoadApi->LoadPakSync, &LoadPakSyncHook, reinterpret_cast<LPVOID*>(&LoadPakSyncOriginal)); ENABLER_CREATEHOOK(hook, g_pakLoadApi->LoadPakAsync, &LoadPakAsyncHook, reinterpret_cast<LPVOID*>(&LoadPakAsyncOriginal)); }