mirror of
https://github.com/LibreVR/Revive.git
synced 2026-08-04 00:54:37 -04:00
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
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#include <Windows.h>
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#include <stdio.h>
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#include <Shlwapi.h>
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#include <string>
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#include "MinHook.h"
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#include "Extras\OVR_CAPI_Util.h"
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#include "OVR_Version.h"
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#include "microprofile.h"
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typedef HMODULE(__stdcall* _LoadLibrary)(LPCWSTR lpFileName);
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_LoadLibrary TrueLoadLibrary;
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WCHAR revModuleName[MAX_PATH];
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WCHAR ovrModuleName[MAX_PATH];
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HMODULE WINAPI HookLoadLibrary(LPCWSTR lpFileName)
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{
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LPCWSTR name = PathFindFileNameW(lpFileName);
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LPCWSTR ext = PathFindExtensionW(name);
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size_t length = ext - name;
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// Load our own library again so the ref count is incremented.
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if (wcsncmp(name, ovrModuleName, length) == 0)
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return TrueLoadLibrary(revModuleName);
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return TrueLoadLibrary(lpFileName);
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}
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BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
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{
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#if defined(_WIN64)
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const char* pBitDepth = "64";
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#else
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const char* pBitDepth = "32";
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#endif
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switch (ul_reason_for_call)
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{
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case DLL_PROCESS_ATTACH:
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GetModuleFileName((HMODULE)hModule, revModuleName, MAX_PATH);
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swprintf(ovrModuleName, MAX_PATH, L"LibOVRRT%hs_%d.dll", pBitDepth, OVR_MAJOR_VERSION);
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MH_Initialize();
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MH_CreateHook(LoadLibraryW, HookLoadLibrary, (PVOID*)&TrueLoadLibrary);
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MH_EnableHook(MH_ALL_HOOKS);
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break;
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case DLL_PROCESS_DETACH:
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MH_Uninitialize();
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break;
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default:
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break;
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}
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return TRUE;
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}
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