gbe_fork/overlay_experimental/Hook_Manager.cpp

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#include "../dll/dll.h"
#include "Hook_Manager.h"
#include "../detours/detours.h"
#include "DX12_Hook.h"
#include "DX11_Hook.h"
#include "DX10_Hook.h"
#include "DX9_Hook.h"
#include <algorithm>
decltype(LoadLibraryA )* _LoadLibraryA = LoadLibraryA;
decltype(LoadLibraryW )* _LoadLibraryW = LoadLibraryW;
decltype(LoadLibraryExA )* _LoadLibraryExA = LoadLibraryExA;
decltype(LoadLibraryExW )* _LoadLibraryExW = LoadLibraryExW;
void create_hookA(const char* libname)
{
if (!strcmp(libname, "d3d9.dll"))
DX9_Hook::Create();
else if (!strcmp(libname, "d3d10.dll"))
DX10_Hook::Create();
else if (!strcmp(libname, "d3d11.dll"))
DX11_Hook::Create();
else if (!strcmp(libname, "d3d12.dll"))
DX12_Hook::Create();
}
void create_hookW(const wchar_t *libname)
{
if (!wcscmp(libname, L"d3d9.dll"))
DX9_Hook::Create();
else if (!wcscmp(libname, L"d3d10.dll"))
DX10_Hook::Create();
else if (!wcscmp(libname, L"d3d11.dll"))
DX11_Hook::Create();
else if (!wcscmp(libname, L"d3d12.dll"))
DX12_Hook::Create();
}
HMODULE WINAPI mLoadLibraryA(LPCTSTR lpLibFileName)
{
auto res = _LoadLibraryA(lpLibFileName);
create_hookA(lpLibFileName);
return res;
}
HMODULE WINAPI mLoadLibraryW(LPCWSTR lpLibFileName)
{
auto res = _LoadLibraryW(lpLibFileName);
create_hookW(lpLibFileName);
return res;
}
HMODULE WINAPI mLoadLibraryExA(LPCTSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)
{
auto res = _LoadLibraryA(lpLibFileName);
create_hookA(lpLibFileName);
return res;
}
HMODULE WINAPI mLoadLibraryExW(LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)
{
auto res = _LoadLibraryExW(lpLibFileName, hFile, dwFlags);
create_hookW(lpLibFileName);
return res;
}
Hook_Manager::Hook_Manager():
_isSet(false),
_LoadLibraryHooked(false)
{}
Hook_Manager::~Hook_Manager()
{
for (auto& i : _hooks)
delete i;
}
Hook_Manager& Hook_Manager::Inst()
{
static Hook_Manager hook;
return hook;
}
void Hook_Manager::HookRenderer(Steam_Overlay *ovlay)
{
overlay = ovlay;
HookLoadLibrary();
std::vector<std::string> const libraries = { "d3d12.dll", "d3d11.dll", "d3d10.dll", "d3d9.dll" };
std::vector<std::string>::const_iterator it = libraries.begin();
while (it != libraries.end())
{
it = std::find_if(it, libraries.end(), [](std::string const& name) {
auto x = GetModuleHandle(name.c_str());
if (x != 0 && x != INVALID_HANDLE_VALUE)
return true;
return false;
});
if (it == libraries.end())
break;
if (*it == "d3d9.dll")
DX9_Hook::Create();
else if (*it == "d3d10.dll")
DX10_Hook::Create();
else if (*it == "d3d11.dll")
DX11_Hook::Create();
else if (*it == "d3d12.dll")
DX12_Hook::Create();
++it;
}
}
void Hook_Manager::UnHookLoadLibrary()
{
_LoadLibraryHooked = false;
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach((PVOID*)& _LoadLibraryA, mLoadLibraryA);
DetourDetach((PVOID*)& _LoadLibraryW, mLoadLibraryW);
DetourDetach((PVOID*)& _LoadLibraryExA, mLoadLibraryExA);
DetourDetach((PVOID*)& _LoadLibraryExW, mLoadLibraryExW);
DetourTransactionCommit();
}
void Hook_Manager::HookLoadLibrary()
{
if (!_isSet && !_LoadLibraryHooked)
{
_LoadLibraryHooked = true;
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach((PVOID*)& _LoadLibraryA, mLoadLibraryA);
DetourAttach((PVOID*)& _LoadLibraryW, mLoadLibraryW);
DetourAttach((PVOID*)& _LoadLibraryExA, mLoadLibraryExA);
DetourAttach((PVOID*)& _LoadLibraryExW, mLoadLibraryExW);
DetourTransactionCommit();
}
}
void Hook_Manager::FoundHook(Base_Hook* hook)
{
if (!_isSet)
{
_isSet = true;
UnHookLoadLibrary();
// Remove all hooks that are unused
_hooks.erase(std::remove_if(_hooks.begin(), _hooks.end(), [&hook](Base_Hook* it_hook) {
if (hook != it_hook)
{
delete it_hook;
return true;
}
return false;
}), _hooks.end());
}
}
void Hook_Manager::ChangeGameWindow(HWND hWnd) const
{
overlay->HookReady(hWnd);
}
void Hook_Manager::CallOverlayProc(int width, int height) const
{
overlay->OverlayProc(width, height);
}