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https://github.com/Mauler125/r5sdk.git
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edc52ad669
Originally, we store the search results in a CMemory instance which we then assign to the actual function pointer. CMemory is just a pointer class; we can assign the results directly to the actual function pointer. This commit reduces a lot of code verbosity, and also reduced roughly 2KiB worth of static pointers in the resulting executable. This commit also officially deprecates the support for any GameDLL's below S3 (Season 3), since it makes more sense to port the assets from earlier/later games back to the version this SDK supports.
89 lines
5.6 KiB
C++
89 lines
5.6 KiB
C++
#pragma once
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#include "public/ifilesystem.h"
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class CBaseFileSystem : public IFileSystem
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{
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public:
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//--------------------------------------------------------
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// Purpose: Static methods used for hooking.
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//--------------------------------------------------------
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static void Warning(CBaseFileSystem* pFileSystem, FileWarningLevel_t level, const char* fmt, ...);
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static bool VCheckDisk(const char* pszFilePath);
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static FileHandle_t VReadFromVPK(CBaseFileSystem* pFileSystem, FileHandle_t pResults, const char* pszFilePath);
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static bool VReadFromCache(CBaseFileSystem* pFileSystem, const char* pszFilePath, FileSystemCache* pCache);
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static void VAddMapPackFile(CBaseFileSystem* pFileSystem, const char* pPath, const char* pPathID, SearchPathAdd_t addType);
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static VPKData_t* VMountVPKFile(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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static const char* VUnmountVPKFile(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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CUtlString ReadString(FileHandle_t pFile);
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protected:
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//----------------------------------------------------------------------------
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// Purpose: Functions implementing basic file system behavior.
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//----------------------------------------------------------------------------
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virtual FILE* FS_fopen(const char* filename, const char* options, unsigned flags, int64* size) = 0;
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virtual void FS_setbufsize(FILE* fp, unsigned nBytes) = 0;
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virtual void FS_fclose(FILE* fp) = 0;
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virtual void FS_fseek(FILE* fp, int64 pos, int seekType) = 0;
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virtual long FS_ftell(FILE* fp) = 0;
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virtual int FS_feof(FILE* fp) = 0;
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virtual size_t FS_fread(void* dest, size_t destSize, size_t size, FILE* fp) = 0;
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virtual size_t FS_fwrite(const void* src, size_t size, FILE* fp) = 0;
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virtual bool FS_setmode(FILE* fp, FileMode_t mode) = 0;
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virtual size_t FS_vfprintf(FILE* fp, const char* fmt, va_list list) = 0;
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virtual int FS_ferror(FILE* fp) = 0;
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virtual int FS_fflush(FILE* fp) = 0;
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virtual char* FS_fgets(char* dest, int destSize, FILE* fp) = 0;
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virtual int FS_stat(const char* path, struct _stat* buf, bool* pbLoadedFromSteamCache = NULL) = 0;
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virtual int FS_chmod(const char* path, int pmode) = 0;
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virtual HANDLE FS_FindFirstFile(const char* findname, WIN32_FIND_DATA* dat) = 0;
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virtual bool FS_FindNextFile(HANDLE handle, WIN32_FIND_DATA* dat) = 0;
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virtual bool FS_FindClose(HANDLE handle) = 0;
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virtual int FS_GetSectorSize(FILE*) = 0;
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};
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/* ==== CBASEFILESYSTEM ================================================================================================================================================= */
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inline void(*CBaseFileSystem__Warning)(CBaseFileSystem* pFileSystem, FileWarningLevel_t level, const char* fmt, ...);
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inline FileHandle_t(*CBaseFileSystem__LoadFromVPK)(CBaseFileSystem* pFileSystem, FileHandle_t pResults, const char* pszAssetName);
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inline bool(*CBaseFileSystem__LoadFromCache)(CBaseFileSystem* pFileSystem, const char* pszAssetName, FileSystemCache* pCache);
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inline void(*CBaseFileSystem__AddMapPackFile)(CBaseFileSystem* pFileSystem, const char* pPath, const char* pPathID, SearchPathAdd_t addType);
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inline VPKData_t*(*CBaseFileSystem__MountVPKFile)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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inline const char* (*CBaseFileSystem__UnmountVPKFile)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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inline int(*CBaseFileSystem__GetMountedVPKHandle)(CBaseFileSystem* pFileSystem, const char* pszVpkPath);
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extern CBaseFileSystem* g_pFileSystem;
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///////////////////////////////////////////////////////////////////////////////
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class VBaseFileSystem : public IDetour
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{
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virtual void GetAdr(void) const
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{
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LogFunAdr("CBaseFileSystem::Warning", CBaseFileSystem__Warning);
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LogFunAdr("CBaseFileSystem::LoadFromVPK", CBaseFileSystem__LoadFromVPK);
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LogFunAdr("CBaseFileSystem::LoadFromCache", CBaseFileSystem__LoadFromCache);
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LogFunAdr("CBaseFileSystem::AddMapPackFile", CBaseFileSystem__AddMapPackFile);
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LogFunAdr("CBaseFileSystem::MountVPKFile", CBaseFileSystem__MountVPKFile);
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LogFunAdr("CBaseFileSystem::UnmountVPKFile", CBaseFileSystem__UnmountVPKFile);
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LogFunAdr("CBaseFileSystem::GetMountedVPKHandle", CBaseFileSystem__GetMountedVPKHandle);
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LogVarAdr("g_pFileSystem", g_pFileSystem);
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}
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virtual void GetFun(void) const
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{
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g_GameDll.FindPatternSIMD("4C 89 4C 24 20 C3 CC CC CC CC CC CC CC CC CC CC 48").GetPtr(CBaseFileSystem__Warning);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 57 48 81 EC ?? ?? ?? ?? 49 8B C0 4C 8D 8C 24 ?? ?? ?? ??").GetPtr(CBaseFileSystem__LoadFromVPK);
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g_GameDll.FindPatternSIMD("40 53 48 81 EC ?? ?? ?? ?? 80 3D ?? ?? ?? ?? ?? 49 8B D8").GetPtr(CBaseFileSystem__LoadFromCache);
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g_GameDll.FindPatternSIMD("4C 89 44 24 ?? 48 89 54 24 ?? 55 ?? 41 54 41 55 48 8D AC 24 ?? ?? ?? ??").GetPtr(CBaseFileSystem__AddMapPackFile);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 48 89 6C 24 ?? 57 48 81 EC ?? ?? ?? ?? 48 8B F9 4C 8D 05 ?? ?? ?? ??").GetPtr(CBaseFileSystem__MountVPKFile);
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g_GameDll.FindPatternSIMD("48 89 5C 24 ?? 57 48 83 EC 20 48 8B DA 48 8B F9 48 8B CB 48 8D 15 ?? ?? ?? ?? E8 ?? ?? ?? ?? 48 85 C0").GetPtr(CBaseFileSystem__UnmountVPKFile);
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g_GameDll.FindPatternSIMD("48 89 74 24 ?? 57 48 81 EC ?? ?? ?? ?? 48 8B F9 4C 8D 05 ?? ?? ?? ??").GetPtr(CBaseFileSystem__GetMountedVPKHandle);
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}
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virtual void GetVar(void) const
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{
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g_pFileSystem = g_GameDll.FindPatternSIMD("48 8D 05 ?? ?? ?? ?? 48 89 05 ?? ?? ?? ?? 48 8D 0D ?? ?? ?? ?? 48 8D 05 ?? ?? ?? ?? 48 89 05 ?? ?? ?? ?? E9 ?? ?? ?? ??")
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.FindPattern("48 89", CMemory::Direction::DOWN, 512, 2).ResolveRelativeAddressSelf(0x3, 0x7).RCast<CBaseFileSystem*>();
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}
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virtual void GetCon(void) const { }
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virtual void Detour(const bool bAttach) const;
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};
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///////////////////////////////////////////////////////////////////////////////
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