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goldberg_emulator/overlay_experimental/Renderer_Detector.cpp

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#include "Renderer_Detector.h"
#include "Hook_Manager.h"
#include <algorithm>
constexpr int max_hook_retries = 500;
#ifdef STEAM_WIN32
#include "DX12_Hook.h"
#include "DX11_Hook.h"
#include "DX10_Hook.h"
#include "DX9_Hook.h"
#include "OpenGL_Hook.h"
#include "Windows_Hook.h"
static decltype(&IDXGISwapChain::Present) _IDXGISwapChain_Present = nullptr;
static decltype(&IDirect3DDevice9::Present) _IDirect3DDevice9_Present = nullptr;
static decltype(&IDirect3DDevice9Ex::PresentEx) _IDirect3DDevice9Ex_PresentEx = nullptr;
static decltype(wglMakeCurrent)* _wglMakeCurrent = nullptr;
static constexpr auto windowClassName = "___overlay_window_class___";
void Renderer_Detector::create_hwnd()
{
if (dummy_hWnd == nullptr)
{
HINSTANCE hInst = GetModuleHandle(nullptr);
if (atom == 0)
{
// Register a window class for creating our render window with.
WNDCLASSEX windowClass = {};
windowClass.cbSize = sizeof(WNDCLASSEX);
windowClass.style = CS_HREDRAW | CS_VREDRAW;
windowClass.lpfnWndProc = DefWindowProc;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = hInst;
windowClass.hIcon = NULL;
windowClass.hCursor = ::LoadCursor(NULL, IDC_ARROW);
windowClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
windowClass.lpszMenuName = NULL;
windowClass.lpszClassName = windowClassName;
windowClass.hIconSm = NULL;
atom = ::RegisterClassEx(&windowClass);
}
if (atom > 0)
{
dummy_hWnd = ::CreateWindowEx(
NULL,
windowClassName,
"",
WS_OVERLAPPEDWINDOW,
0,
0,
1,
1,
NULL,
NULL,
hInst,
nullptr
);
assert(dummy_hWnd && "Failed to create window");
}
}
}
void Renderer_Detector::destroy_hwnd()
{
if (dummy_hWnd != nullptr)
{
DestroyWindow(dummy_hWnd);
UnregisterClass(windowClassName, GetModuleHandle(nullptr));
}
}
HRESULT STDMETHODCALLTYPE Renderer_Detector::MyIDXGISwapChain_Present(IDXGISwapChain* _this, UINT SyncInterval, UINT Flags)
{
Renderer_Detector& inst = Renderer_Detector::Inst();
Hook_Manager& hm = Hook_Manager::Inst();
auto res = (_this->*_IDXGISwapChain_Present)(SyncInterval, Flags);
if (!inst.stop_retry())
{
IUnknown* pDevice = nullptr;
_this->GetDevice(IID_PPV_ARGS(reinterpret_cast<ID3D10Device**>(&pDevice)));
if (pDevice)
{
DX10_Hook::Inst()->start_hook();
}
else
{
_this->GetDevice(IID_PPV_ARGS(reinterpret_cast<ID3D11Device**>(&pDevice)));
if (pDevice)
{
DX11_Hook::Inst()->start_hook();
}
else
{
//_this->GetDevice(IID_PPV_ARGS(reinterpret_cast<ID3D12Device**>(&pDevice)));
//if (pDevice)
//{
// DX12_Hook::Inst()->start_hook();
//}
}
}
if (pDevice) pDevice->Release();
}
return res;
}
HRESULT STDMETHODCALLTYPE Renderer_Detector::MyPresent(IDirect3DDevice9* _this, CONST RECT* pSourceRect, CONST RECT* pDestRect, HWND hDestWindowOverride, CONST RGNDATA* pDirtyRegion)
{
Renderer_Detector& inst = Renderer_Detector::Inst();
Hook_Manager& hm = Hook_Manager::Inst();
auto res = (_this->*_IDirect3DDevice9_Present)(pSourceRect, pDestRect, hDestWindowOverride, pDirtyRegion);
if (!inst.stop_retry())
{
DX9_Hook::Inst()->start_hook();
}
return res;
}
HRESULT STDMETHODCALLTYPE Renderer_Detector::MyPresentEx(IDirect3DDevice9Ex* _this, CONST RECT* pSourceRect, CONST RECT* pDestRect, HWND hDestWindowOverride, CONST RGNDATA* pDirtyRegion, DWORD dwFlags)
{
Renderer_Detector& inst = Renderer_Detector::Inst();
Hook_Manager& hm = Hook_Manager::Inst();
auto res = (_this->*_IDirect3DDevice9Ex_PresentEx)(pSourceRect, pDestRect, hDestWindowOverride, pDirtyRegion, dwFlags);
if (!inst.stop_retry())
{
DX9_Hook::Inst()->start_hook();
}
return res;
}
BOOL WINAPI Renderer_Detector::MywglMakeCurrent(HDC hDC, HGLRC hGLRC)
{
Renderer_Detector& inst = Renderer_Detector::Inst();
Hook_Manager& hm = Hook_Manager::Inst();
auto res = _wglMakeCurrent(hDC, hGLRC);
if (!inst.stop_retry())
{
OpenGL_Hook::Inst()->start_hook();
}
return res;
}
void Renderer_Detector::HookDXGIPresent(IDXGISwapChain* pSwapChain)
{
if (!_dxgi_hooked)
{
_dxgi_hooked = true;
(void*&)_IDXGISwapChain_Present = (*reinterpret_cast<void***>(pSwapChain))[(int)IDXGISwapChainVTable::Present];
rendererdetect_hook->BeginHook();
rendererdetect_hook->HookFuncs(
std::pair<void**, void*>((PVOID*)& _IDXGISwapChain_Present, &Renderer_Detector::MyIDXGISwapChain_Present)
);
rendererdetect_hook->EndHook();
}
}
void Renderer_Detector::HookDX9Present(IDirect3DDevice9* pDevice, bool ex)
{
(void*&)_IDirect3DDevice9_Present = (*reinterpret_cast<void***>(pDevice))[(int)IDirect3DDevice9VTable::Present];
if (ex)
(void*&)_IDirect3DDevice9Ex_PresentEx = (*reinterpret_cast<void***>(pDevice))[(int)IDirect3DDevice9VTable::PresentEx];
rendererdetect_hook->BeginHook();
rendererdetect_hook->HookFuncs(
std::pair<void**, void*>((PVOID*)& _IDirect3DDevice9_Present, &Renderer_Detector::MyPresent)
);
if (ex)
{
rendererdetect_hook->HookFuncs(
std::pair<void**, void*>((PVOID*)& _IDirect3DDevice9Ex_PresentEx, &Renderer_Detector::MyPresentEx)
);
}
rendererdetect_hook->EndHook();
}
void Renderer_Detector::HookwglMakeCurrent(decltype(wglMakeCurrent)* wglMakeCurrent)
{
_wglMakeCurrent = wglMakeCurrent;
rendererdetect_hook->BeginHook();
rendererdetect_hook->HookFuncs(
std::pair<void**, void*>((PVOID*)& _wglMakeCurrent, &Renderer_Detector::MywglMakeCurrent)
);
rendererdetect_hook->EndHook();
}
void Renderer_Detector::hook_dx9()
{
if (!_dx9_hooked && !_renderer_found)
{
create_hwnd();
if (dummy_hWnd == nullptr)
return;
IDirect3D9Ex* pD3D = nullptr;
IUnknown* pDevice = nullptr;
HMODULE library = GetModuleHandle(DX9_Hook::DLL_NAME);
decltype(Direct3DCreate9Ex)* Direct3DCreate9Ex = nullptr;
if (library != nullptr)
{
Direct3DCreate9Ex = (decltype(Direct3DCreate9Ex))GetProcAddress(library, "Direct3DCreate9Ex");
D3DPRESENT_PARAMETERS params = {};
params.BackBufferWidth = 1;
params.BackBufferHeight = 1;
params.hDeviceWindow = dummy_hWnd;
params.BackBufferCount = 1;
params.Windowed = TRUE;
params.SwapEffect = D3DSWAPEFFECT_DISCARD;
if (Direct3DCreate9Ex != nullptr)
{
Direct3DCreate9Ex(D3D_SDK_VERSION, &pD3D);
pD3D->CreateDeviceEx(D3DADAPTER_DEFAULT, D3DDEVTYPE_NULLREF, NULL, D3DCREATE_HARDWARE_VERTEXPROCESSING, &params, NULL, reinterpret_cast<IDirect3DDevice9Ex * *>(&pDevice));
}
else
{
decltype(Direct3DCreate9)* Direct3DCreate9 = (decltype(Direct3DCreate9))GetProcAddress(library, "Direct3DCreate9");
if (Direct3DCreate9 != nullptr)
{
pD3D = reinterpret_cast<IDirect3D9Ex*>(Direct3DCreate9(D3D_SDK_VERSION));
pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_NULLREF, NULL, D3DCREATE_HARDWARE_VERTEXPROCESSING, &params, reinterpret_cast<IDirect3DDevice9 * *>(&pDevice));
}
}
}
if (pDevice != nullptr)
{
PRINT_DEBUG("Hooked D3D9::Present to detect DX Version\n");
_dx9_hooked = true;
auto h = DX9_Hook::Inst();
h->loadFunctions(reinterpret_cast<IDirect3DDevice9*>(pDevice), Direct3DCreate9Ex != nullptr);
Hook_Manager::Inst().AddHook(h);
HookDX9Present(reinterpret_cast<IDirect3DDevice9*>(pDevice), Direct3DCreate9Ex != nullptr);
}
else
{
PRINT_DEBUG("Failed to hook D3D9::Present to detect DX Version\n");
}
if (pDevice) pDevice->Release();
if (pD3D) pD3D->Release();
}
}
void Renderer_Detector::hook_dx10()
{
if (!_dxgi_hooked && !_renderer_found)
{
create_hwnd();
if (dummy_hWnd == nullptr)
return;
IDXGISwapChain* pSwapChain = nullptr;
ID3D10Device* pDevice = nullptr;
HMODULE library = GetModuleHandle(DX10_Hook::DLL_NAME);
if (library != nullptr)
{
decltype(D3D10CreateDeviceAndSwapChain)* D3D10CreateDeviceAndSwapChain =
(decltype(D3D10CreateDeviceAndSwapChain))GetProcAddress(library, "D3D10CreateDeviceAndSwapChain");
if (D3D10CreateDeviceAndSwapChain != nullptr)
{
DXGI_SWAP_CHAIN_DESC SwapChainDesc = {};
SwapChainDesc.BufferCount = 1;
SwapChainDesc.BufferDesc.Width = 1;
SwapChainDesc.BufferDesc.Height = 1;
SwapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.BufferDesc.RefreshRate.Numerator = 0;
SwapChainDesc.BufferDesc.RefreshRate.Denominator = 0;
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.OutputWindow = dummy_hWnd;
SwapChainDesc.SampleDesc.Count = 1;
SwapChainDesc.SampleDesc.Quality = 0;
SwapChainDesc.Windowed = TRUE;
D3D10CreateDeviceAndSwapChain(NULL, D3D10_DRIVER_TYPE_NULL, NULL, 0, D3D10_SDK_VERSION, &SwapChainDesc, &pSwapChain, &pDevice);
}
}
if (pSwapChain != nullptr)
{
PRINT_DEBUG("Hooked IDXGISwapChain::Present to detect DX Version\n");
_dx10_hooked = true;
auto h = DX10_Hook::Inst();
h->loadFunctions(pSwapChain);
Hook_Manager::Inst().AddHook(h);
HookDXGIPresent(pSwapChain);
}
else
{
PRINT_DEBUG("Failed to Hook IDXGISwapChain::Present to detect DX Version\n");
}
if (pDevice)pDevice->Release();
if (pSwapChain)pSwapChain->Release();
}
}
void Renderer_Detector::hook_dx11()
{
if (!_dxgi_hooked && !_renderer_found)
{
create_hwnd();
if (dummy_hWnd == nullptr)
return;
IDXGISwapChain* pSwapChain = nullptr;
ID3D11Device* pDevice = nullptr;
HMODULE library = GetModuleHandle(DX11_Hook::DLL_NAME);
if (library != nullptr)
{
decltype(D3D11CreateDeviceAndSwapChain)* D3D11CreateDeviceAndSwapChain =
(decltype(D3D11CreateDeviceAndSwapChain))GetProcAddress(library, "D3D11CreateDeviceAndSwapChain");
if (D3D11CreateDeviceAndSwapChain != nullptr)
{
DXGI_SWAP_CHAIN_DESC SwapChainDesc = {};
SwapChainDesc.BufferCount = 1;
SwapChainDesc.BufferDesc.Width = 1;
SwapChainDesc.BufferDesc.Height = 1;
SwapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.BufferDesc.RefreshRate.Numerator = 0;
SwapChainDesc.BufferDesc.RefreshRate.Denominator = 0;
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.OutputWindow = dummy_hWnd;
SwapChainDesc.SampleDesc.Count = 1;
SwapChainDesc.SampleDesc.Quality = 0;
SwapChainDesc.Windowed = TRUE;
D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_NULL, NULL, 0, NULL, NULL, D3D11_SDK_VERSION, &SwapChainDesc, &pSwapChain, &pDevice, NULL, NULL);
}
}
if (pSwapChain != nullptr)
{
PRINT_DEBUG("Hooked IDXGISwapChain::Present to detect DX Version\n");
_dx11_hooked = true;
auto h = DX11_Hook::Inst();
h->loadFunctions(pSwapChain);
Hook_Manager::Inst().AddHook(h);
HookDXGIPresent(pSwapChain);
}
else
{
PRINT_DEBUG("Failed to Hook IDXGISwapChain::Present to detect DX Version\n");
}
if (pDevice) pDevice->Release();
if (pSwapChain) pSwapChain->Release();
}
}
void Renderer_Detector::hook_dx12()
{
if (!_dxgi_hooked && !_renderer_found)
{
create_hwnd();
if (dummy_hWnd == nullptr)
return;
IDXGIFactory4* pDXGIFactory = nullptr;
IDXGISwapChain1* pSwapChain = nullptr;
ID3D12CommandQueue* pCommandQueue = nullptr;
ID3D12Device* pDevice = nullptr;
ID3D12CommandAllocator* pCommandAllocator = nullptr;
ID3D12GraphicsCommandList* pCommandList = nullptr;
HMODULE library = GetModuleHandle(DX12_Hook::DLL_NAME);
if (library != nullptr)
{
decltype(D3D12CreateDevice)* D3D12CreateDevice =
(decltype(D3D12CreateDevice))GetProcAddress(library, "D3D12CreateDevice");
if (D3D12CreateDevice != nullptr)
{
D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_11_0, IID_PPV_ARGS(&pDevice));
if (pDevice != nullptr)
{
DXGI_SWAP_CHAIN_DESC1 SwapChainDesc = {};
SwapChainDesc.BufferCount = 2;
SwapChainDesc.Width = 1;
SwapChainDesc.Height = 1;
SwapChainDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.Stereo = FALSE;
SwapChainDesc.SampleDesc = { 1, 0 };
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.Scaling = DXGI_SCALING_NONE;
SwapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
SwapChainDesc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
pDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&pCommandQueue));
if (pCommandQueue != nullptr)
{
HMODULE dxgi = GetModuleHandle("dxgi.dll");
if (dxgi != nullptr)
{
decltype(CreateDXGIFactory1)* CreateDXGIFactory1 = (decltype(CreateDXGIFactory1))GetProcAddress(dxgi, "CreateDXGIFactory1");
if (CreateDXGIFactory1 != nullptr)
{
CreateDXGIFactory1(IID_PPV_ARGS(&pDXGIFactory));
if (pDXGIFactory != nullptr)
{
pDXGIFactory->CreateSwapChainForHwnd(pCommandQueue, dummy_hWnd, &SwapChainDesc, NULL, NULL, &pSwapChain);
pDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&pCommandAllocator));
if (pCommandAllocator != nullptr)
{
pDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, pCommandAllocator, NULL, IID_PPV_ARGS(&pCommandList));
}
}
}
}
}
}//if (pDevice != nullptr)
}//if (D3D12CreateDevice != nullptr)
}//if (library != nullptr)
if (pCommandQueue != nullptr && pCommandList != nullptr && pSwapChain != nullptr)
{
PRINT_DEBUG("Hooked IDXGISwapChain::Present to detect DX Version\n");
_dx12_hooked = true;
auto h = DX12_Hook::Inst();
h->loadFunctions(pCommandQueue, pCommandList, pSwapChain);
Hook_Manager::Inst().AddHook(h);
HookDXGIPresent(pSwapChain);
}
else
{
PRINT_DEBUG("Failed to Hook IDXGISwapChain::Present to detect DX Version\n");
}
if (pCommandList) pCommandList->Release();
if (pCommandAllocator) pCommandAllocator->Release();
if (pSwapChain) pSwapChain->Release();
if (pDXGIFactory) pDXGIFactory->Release();
if (pCommandQueue) pCommandQueue->Release();
if (pDevice) pDevice->Release();
}
}
void Renderer_Detector::hook_opengl()
{
if (!_ogl_hooked && !_renderer_found)
{
HMODULE library = GetModuleHandle(OpenGL_Hook::DLL_NAME);
decltype(wglMakeCurrent)* wglMakeCurrent = nullptr;
OpenGL_Hook::wglSwapBuffers_t wglSwapBuffers = nullptr;
if (library != nullptr)
{
wglMakeCurrent = (decltype(wglMakeCurrent))GetProcAddress(library, "wglMakeCurrent");
wglSwapBuffers = (decltype(wglSwapBuffers))GetProcAddress(library, "wglSwapBuffers");
}
if (wglMakeCurrent != nullptr && wglSwapBuffers != nullptr)
{
PRINT_DEBUG("Hooked wglMakeCurrent to detect OpenGL\n");
_ogl_hooked = true;
auto h = OpenGL_Hook::Inst();
h->loadFunctions(wglSwapBuffers);
Hook_Manager::Inst().AddHook(h);
HookwglMakeCurrent(wglMakeCurrent);
}
else
{
PRINT_DEBUG("Failed to Hook wglMakeCurrent to detect OpenGL\n");
}
}
}
void Renderer_Detector::create_hook(const char* libname)
{
if (!_stricmp(libname, DX9_Hook::DLL_NAME))
hook_dx9();
else if (!_stricmp(libname, DX10_Hook::DLL_NAME))
hook_dx10();
else if (!_stricmp(libname, DX11_Hook::DLL_NAME))
hook_dx11();
else if (!_stricmp(libname, DX12_Hook::DLL_NAME))
hook_dx12();
else if (!_stricmp(libname, OpenGL_Hook::DLL_NAME))
hook_opengl();
}
void Renderer_Detector::find_renderer_proc(Renderer_Detector* _this)
{
_this->rendererdetect_hook = new Base_Hook();
Hook_Manager& hm = Hook_Manager::Inst();
hm.AddHook(_this->rendererdetect_hook);
std::vector<std::string> const libraries = { "opengl32.dll", "d3d12.dll", "d3d11.dll", "d3d10.dll", "d3d9.dll" };
while (!_this->_renderer_found && !_this->stop_retry())
{
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 != NULL)
return true;
return false;
});
if (it == libraries.end())
break;
_this->create_hook(it->c_str());
++it;
}
std::this_thread::sleep_for(std::chrono::milliseconds(500));
}
}
void Renderer_Detector::renderer_found(Base_Hook* hook)
{
Hook_Manager& hm = Hook_Manager::Inst();
_renderer_found = true;
game_renderer = hook;
if (hook == nullptr)
PRINT_DEBUG("We found a renderer but couldn't hook it, aborting overlay hook.\n");
else
PRINT_DEBUG("Hooked renderer in %d/%d tries\n", _hook_retries, max_hook_retries);
_hook_thread->join();
delete _hook_thread;
_hook_thread = nullptr;
hm.RemoveHook(rendererdetect_hook);
destroy_hwnd();
if (hook == nullptr) // Couldn't hook renderer
{
hm.RemoveHook(Windows_Hook::Inst());
}
else
{
hm.AddHook(Windows_Hook::Inst());
}
if (_ogl_hooked)
{
auto h = OpenGL_Hook::Inst();
if (h != hook)
{
_ogl_hooked = false;
hm.RemoveHook(h);
}
}
if (_dx9_hooked)
{
auto h = DX9_Hook::Inst();
if (h != hook)
{
_dx9_hooked = false;
hm.RemoveHook(h);
}
}
if (_dx10_hooked)
{
auto h = DX10_Hook::Inst();
if (h != hook)
{
_dx10_hooked = false;
hm.RemoveHook(h);
}
}
if (_dx11_hooked)
{
auto h = DX11_Hook::Inst();
if (h != hook)
{
_dx11_hooked = false;
hm.RemoveHook(h);
}
}
if (_dx12_hooked)
{
auto h = DX12_Hook::Inst();
if (h != hook)
{
_dx12_hooked = false;
hm.RemoveHook(h);
}
}
}
Renderer_Detector::Renderer_Detector():
_hook_thread(nullptr),
_hook_retries(0),
_renderer_found(false),
_dx9_hooked(false),
_dx10_hooked(false),
_dx11_hooked(false),
_dx12_hooked(false),
_dxgi_hooked(false),
_ogl_hooked(false),
rendererdetect_hook(nullptr),
game_renderer(nullptr),
atom(0),
dummy_hWnd(nullptr)
{}
#else// defined(__LINUX__)//!STEAM_WIN32
#include "linux/X11_Hook.h"
#include <dlfcn.h>
#include <fstream>
static decltype(glXSwapBuffers)* _glXSwapBuffers = nullptr;
void Renderer_Detector::MyglXSwapBuffers(Display *dpy, GLXDrawable drawable)
{
Renderer_Detector& inst = Renderer_Detector::Inst();
Hook_Manager& hm = Hook_Manager::Inst();
_glXSwapBuffers(reinterpret_cast<::Display*>(dpy), drawable);
if (!inst.stop_retry())
{
OpenGLX_Hook::Inst()->start_hook();
}
}
void Renderer_Detector::HookglXSwapBuffers(decltype(glXSwapBuffers)* glXSwapBuffers)
{
_glXSwapBuffers = glXSwapBuffers;
rendererdetect_hook->BeginHook();
rendererdetect_hook->HookFuncs(
std::pair<void**, void*>(&(void*&)_glXSwapBuffers, (void*)MyglXSwapBuffers)
);
rendererdetect_hook->EndHook();
}
void Renderer_Detector::hook_openglx(const char* libname)
{
if (!_oglx_hooked && !_renderer_found)
{
void* library = dlopen(libname, RTLD_NOW);
decltype(glXSwapBuffers)* glXSwapBuffers = nullptr;
if (library != nullptr)
{
glXSwapBuffers = (decltype(glXSwapBuffers))dlsym(library, "glXSwapBuffers");
}
if (glXSwapBuffers != nullptr)
{
PRINT_DEBUG("Hooked glXMakeCurrent to detect OpenGLX\n");
_oglx_hooked = true;
auto h = OpenGLX_Hook::Inst();
h->loadFunctions(glXSwapBuffers);
Hook_Manager::Inst().AddHook(h);
HookglXSwapBuffers(glXSwapBuffers);
}
else
{
PRINT_DEBUG("Failed to Hook glXMakeCurrent to detect OpenGLX\n");
}
}
}
void Renderer_Detector::create_hook(const char* libname)
{
if (strcasestr(libname, OpenGLX_Hook::DLL_NAME) != nullptr)
hook_openglx(libname);
}
void Renderer_Detector::find_renderer_proc(Renderer_Detector* _this)
{
_this->rendererdetect_hook = new Base_Hook();
Hook_Manager& hm = Hook_Manager::Inst();
hm.AddHook(_this->rendererdetect_hook);
std::vector<std::string> const libraries = { "libGLX.so" };
while (!_this->_renderer_found && !_this->stop_retry())
{
std::ifstream flibrary("/proc/self/maps");
std::string line;
while( std::getline(flibrary, line) )
{
std::for_each(libraries.begin(), libraries.end(), [&line, &_this]( std::string const& library )
{
if( std::search(line.begin(), line.end(), library.begin(), library.end()) != line.end() )
{
_this->create_hook(line.substr(line.find('/')).c_str());
}
});
}
std::this_thread::sleep_for(std::chrono::milliseconds(500));
}
}
Renderer_Detector::Renderer_Detector():
_hook_thread(nullptr),
_hook_retries(0),
_renderer_found(false),
_oglx_hooked(false),
rendererdetect_hook(nullptr),
game_renderer(nullptr)
{}
void Renderer_Detector::renderer_found(Base_Hook* hook)
{
Hook_Manager& hm = Hook_Manager::Inst();
_renderer_found = true;
game_renderer = hook;
if (hook == nullptr)
PRINT_DEBUG("We found a renderer but couldn't hook it, aborting overlay hook.\n");
else
PRINT_DEBUG("Hooked renderer in %d/%d tries\n", _hook_retries, max_hook_retries);
_hook_thread->join();
delete _hook_thread;
_hook_thread = nullptr;
hm.RemoveHook(rendererdetect_hook);
if (hook == nullptr) // Couldn't hook renderer
{
hm.RemoveHook(X11_Hook::Inst());
}
else
{
hm.AddHook(X11_Hook::Inst());
}
if (_oglx_hooked)
{
auto h = OpenGLX_Hook::Inst();
if (h != hook)
{
_oglx_hooked = false;
hm.RemoveHook(h);
}
}
}
#endif
bool Renderer_Detector::stop_retry()
{
// Retry or not
bool stop = ++_hook_retries >= max_hook_retries;
if (stop)
{
renderer_found(nullptr);
}
return stop;
}
void Renderer_Detector::find_renderer()
{
if (_hook_thread == nullptr)
{
_hook_thread = new std::thread(&Renderer_Detector::find_renderer_proc, this);
}
}
Renderer_Detector& Renderer_Detector::Inst()
{
static Renderer_Detector inst;
return inst;
}
Base_Hook* Renderer_Detector::get_renderer() const
{
return game_renderer;
}
Renderer_Detector::~Renderer_Detector()
{
if (_hook_thread != nullptr)
{
_hook_retries = max_hook_retries;
_hook_thread->join();
delete _hook_thread;
}
}
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