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This commit is contained in:
Alexandru Victor Macocian
2023-11-17 16:15:56 +01:00
parent cba2475993
commit 19b511d907
1 changed files with 34 additions and 88 deletions
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source/uMod_DX9_dll.cpp
+34 -88
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@@ -13,6 +13,8 @@ HANDLE gl_ServerThread = nullptr;
using Direct3DCreate9_type = IDirect3D9* (APIENTRY*)(UINT);
using Direct3DCreate9Ex_type = HRESULT(APIENTRY*)(UINT SDKVersion, IDirect3D9Ex** ppD3D);
Direct3DCreate9_type OriginalDirect3DCreate9Trampoline = nullptr;
Direct3DCreate9Ex_type OriginalDirect3DCreate9ExTrampoline = nullptr;
Direct3DCreate9_type Direct3DCreate9_fn; // we need to store the pointer to the original Direct3DCreate9 function after we have done a detour
Direct3DCreate9Ex_type Direct3DCreate9Ex_fn; // we need to store the pointer to the original Direct3DCreate9 function after we have done a detour
HHOOK gl_hHook = nullptr;
@@ -88,16 +90,19 @@ void InitInstance(HINSTANCE hModule)
gl_TextureServer = std::make_unique<uMod_TextureServer>(game, uMod.data()); //create the server which listen on the pipe and prepare the update for the texture clients
LoadOriginalDll();
if (gl_hOriginalDll) {
Direct3DCreate9_fn = reinterpret_cast<Direct3DCreate9_type>(GetProcAddress(gl_hOriginalDll, "Direct3DCreate9"));
if (Direct3DCreate9_fn != nullptr) {
// we detour the original Direct3DCreate9 to our MyDirect3DCreate9
Direct3DCreate9_fn = (Direct3DCreate9_type)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9");
if (Direct3DCreate9_fn != NULL)
{
Message("Detour: Direct3DCreate9\n");
Direct3DCreate9_fn = static_cast<Direct3DCreate9_type>(DetourFunc((BYTE*)Direct3DCreate9_fn, (BYTE*)uMod_Direct3DCreate9, 5));
OriginalDirect3DCreate9Trampoline = (Direct3DCreate9_type)DetourFunc((BYTE*)Direct3DCreate9_fn, (BYTE*)uMod_Direct3DCreate9, 5);
}
Direct3DCreate9Ex_fn = reinterpret_cast<Direct3DCreate9Ex_type>(GetProcAddress(gl_hOriginalDll, "Direct3DCreate9Ex"));
if (Direct3DCreate9Ex_fn != nullptr) {
Direct3DCreate9Ex_fn = (Direct3DCreate9Ex_type)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9Ex");
if (Direct3DCreate9Ex_fn != NULL)
{
Message("Detour: Direct3DCreate9Ex\n");
Direct3DCreate9Ex_fn = static_cast<Direct3DCreate9Ex_type>(DetourFunc((BYTE*)Direct3DCreate9Ex_fn, (BYTE*)uMod_Direct3DCreate9Ex, 7));
OriginalDirect3DCreate9ExTrampoline = (Direct3DCreate9Ex_type)DetourFunc((BYTE*)Direct3DCreate9Ex_fn, (BYTE*)uMod_Direct3DCreate9Ex, 7);
}
}
gl_TextureServer->Initialize();
@@ -201,101 +206,42 @@ void ExitInstance()
* We inject the dll into the game, thus we retour the original Direct3DCreate9 function to our MyDirect3DCreate9 function
*/
IDirect3D9* APIENTRY uMod_Direct3DCreate9(UINT SDKVersion)
IDirect3D9* WINAPI uMod_Direct3DCreate9(UINT SDKVersion)
{
Message("uMod_Direct3DCreate9: original %p, uMod %p\n", Direct3DCreate9_fn, uMod_Direct3DCreate9);
Message("WINAPI Direct3DCreate9\n");
// in the Internet are many tutorials for detouring functions and all of them will work without the following 5 marked lines
// but somehow, for me it only works, if I retour the function and calling afterward the original function
if (!gl_hOriginalDll) LoadOriginalDll(); // looking for the "right d3d9.dll"
// BEGIN
// find original function in original d3d9.dll
//Create originale IDirect3D9 object
IDirect3D9* pIDirect3D9_orig = OriginalDirect3DCreate9Trampoline(SDKVersion);
LoadOriginalDll();
//create our uMod_IDirect3D9 object
uMod_IDirect3D9* pIDirect3D9 = new uMod_IDirect3D9(pIDirect3D9_orig, gl_TextureServer.get());
RetourFunc((BYTE*)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9"), (BYTE*)Direct3DCreate9_fn, 5);
Direct3DCreate9_fn = (Direct3DCreate9_type)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9");
/*
if (Direct3DCreate9Ex_fn!=NULL)
{
RetourFunc((BYTE*) GetProcAddress( gl_hOriginalDll, "Direct3DCreate9Ex"), (BYTE*)Direct3DCreate9Ex_fn, 7);
Direct3DCreate9Ex_fn = (Direct3DCreate9Ex_type) GetProcAddress( gl_hOriginalDll, "Direct3DCreate9Ex");
}
*/
// END
IDirect3D9* pIDirect3D9_orig = nullptr;
if (Direct3DCreate9_fn) {
pIDirect3D9_orig = Direct3DCreate9_fn(SDKVersion); //creating the original IDirect3D9 object
}
else {
return nullptr;
}
uMod_IDirect3D9* pIDirect3D9;
if (pIDirect3D9_orig) {
pIDirect3D9 = new uMod_IDirect3D9(pIDirect3D9_orig, gl_TextureServer.get()); //creating our uMod_IDirect3D9 object
}
// we detour again
Direct3DCreate9_fn = static_cast<Direct3DCreate9_type>(DetourFunc((BYTE*)Direct3DCreate9_fn, (BYTE*)uMod_Direct3DCreate9, 5));
/*
if (Direct3DCreate9Ex_fn!=NULL)
{
Direct3DCreate9Ex_fn = (Direct3DCreate9Ex_type)DetourFunc( (BYTE*) Direct3DCreate9Ex_fn, (BYTE*)uMod_Direct3DCreate9Ex,7);
}
*/
return pIDirect3D9; //return our object instead of the "real one"
// Return pointer to our object instead of "real one"
return (pIDirect3D9);
}
HRESULT APIENTRY uMod_Direct3DCreate9Ex(UINT SDKVersion, IDirect3D9Ex** ppD3D)
HRESULT WINAPI uMod_Direct3DCreate9Ex(UINT SDKVersion, IDirect3D9Ex** ppD3D)
{
Message("uMod_Direct3DCreate9Ex: original %p, uMod %p\n", Direct3DCreate9Ex_fn, uMod_Direct3DCreate9Ex);
Message("WINAPI Direct3DCreate9Ex\n");
// in the Internet are many tutorials for detouring functions and all of them will work without the following 5 marked lines
// but somehow, for me it only works, if I retour the function and calling afterward the original function
if (!gl_hOriginalDll) LoadOriginalDll(); // looking for the "right d3d9.dll"
// BEGIN
// find original function in original d3d9.dll
LoadOriginalDll();
/*
if (Direct3DCreate9_fn!=NULL)
{
RetourFunc((BYTE*) GetProcAddress( gl_hOriginalDll, "Direct3DCreate9"), (BYTE*)Direct3DCreate9_fn, 5);
Direct3DCreate9_fn = (Direct3DCreate9_type) GetProcAddress( gl_hOriginalDll, "Direct3DCreate9");
}
*/
RetourFunc((BYTE*)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9Ex"), (BYTE*)Direct3DCreate9Ex_fn, 7);
Direct3DCreate9Ex_fn = (Direct3DCreate9Ex_type)GetProcAddress(gl_hOriginalDll, "Direct3DCreate9Ex");
// END
//Create originale IDirect3D9 object
IDirect3D9Ex* pIDirect3D9Ex_orig;
HRESULT ret = OriginalDirect3DCreate9ExTrampoline(SDKVersion, &pIDirect3D9Ex_orig);
if (ret != S_OK) return (ret);
IDirect3D9Ex* pIDirect3D9Ex_orig = nullptr;
HRESULT ret;
if (Direct3DCreate9Ex_fn) {
ret = Direct3DCreate9Ex_fn(SDKVersion, &pIDirect3D9Ex_orig); //creating the original IDirect3D9 object
}
else {
return D3DERR_NOTAVAILABLE;
}
//create our uMod_IDirect3D9 object
uMod_IDirect3D9Ex* pIDirect3D9Ex = new uMod_IDirect3D9Ex(pIDirect3D9Ex_orig, gl_TextureServer.get());
if (ret != S_OK) {
return ret;
}
uMod_IDirect3D9Ex* pIDirect3D9Ex;
if (pIDirect3D9Ex_orig) {
pIDirect3D9Ex = new uMod_IDirect3D9Ex(pIDirect3D9Ex_orig, gl_TextureServer.get()); //creating our uMod_IDirect3D9 object
}
// we detour again
/*
if (Direct3DCreate9_fn!=NULL)
{
Direct3DCreate9_fn = (Direct3DCreate9_type)DetourFunc( (BYTE*) Direct3DCreate9_fn, (BYTE*)uMod_Direct3DCreate9,5);
}
*/
Direct3DCreate9Ex_fn = static_cast<Direct3DCreate9Ex_type>(DetourFunc((BYTE*)Direct3DCreate9Ex_fn, (BYTE*)uMod_Direct3DCreate9Ex, 7));
ppD3D = (IDirect3D9Ex**)&pIDirect3D9Ex; //return our object instead of the "real one"
return ret;
ppD3D = &pIDirect3D9Ex_orig; // Return pointer to our object instead of "real one"
return (ret);
}
bool HookThisProgram(char* ret)