bool TestDX11Present()
{
HMODULE hD3D11 = LoadLibrary("d3d11.dll");
if (!hD3D11)
{
Msg("* DX11: failed to load d3d11.dll");
return false;
}
FuncPtrD3D11CreateDeviceAndSwapChain pD3D11CreateDeviceAndSwapChain =
(FuncPtrD3D11CreateDeviceAndSwapChain)GetProcAddress(hD3D11, "D3D11CreateDeviceAndSwapChain");
if (!pD3D11CreateDeviceAndSwapChain)
{
Msg("* DX11: failed to get address of D3D11CreateDeviceAndSwapChain");
return false;
}
// Register class
WNDCLASSEX wcex;
ZeroMemory(&wcex, sizeof(wcex));
wcex.cbSize = sizeof( WNDCLASSEX );
wcex.lpfnWndProc = WndProc;
wcex.hInstance = GetModuleHandle(NULL);
wcex.lpszClassName = "TestDX11WindowClass";
if( !RegisterClassEx( &wcex ) )
{
Msg("* DX11: failed to register window class");
return false;
}
// Create window
HWND hWnd = CreateWindow( "TestDX11WindowClass", "",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, NULL, NULL );
DXGI_SWAP_CHAIN_DESC sd;
if (!hWnd)
{
Msg("* DX11: failed to create window");
return false;
}
HRESULT hr = E_FAIL;
ZeroMemory( &sd, sizeof( sd ) );
sd.BufferCount = 1;
sd.BufferDesc.Width = 800;
sd.BufferDesc.Height = 600;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BufferDesc.RefreshRate.Numerator = 60;
sd.BufferDesc.RefreshRate.Denominator = 1;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.Windowed = TRUE;
D3D_FEATURE_LEVEL pFeatureLevels[] = {D3D_FEATURE_LEVEL_11_0};
D3D_FEATURE_LEVEL FeatureLevel;
ID3D11Device* pd3dDevice = NULL;
ID3D11DeviceContext* pContext = NULL;
IDXGISwapChain* pSwapChain = NULL;
hr = pD3D11CreateDeviceAndSwapChain( NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, 0, pFeatureLevels, 1,
D3D11_SDK_VERSION, &sd, &pSwapChain, &pd3dDevice, &FeatureLevel, &pContext );
if (FAILED(hr))
Msg("* D3D11: device creation failed with hr=0x%08x", hr);
if (pContext) pContext->Release();
if (pSwapChain) pSwapChain->Release();
if (pd3dDevice) pd3dDevice->Release();
FreeLibrary(hD3D11);
DestroyWindow(hWnd);
return SUCCEEDED(hr);
}
/// Prepares DXGI and D3D11 data by trying to determine the module filepath
/// and function offsets in memory.
/// (This data can later be used for hooking / code injection.)
///
/// Adjusts the data behind the global variables dxgi and d3d11.
void PrepareDXGI11(IDXGIAdapter1* pAdapter, bool initializeDXGIData) {
if (!dxgi || !d3d11 || !pAdapter)
return;
ods("D3D11: Preparing static data for DXGI and D3D11 Injection");
d3d11->wcFileName[0] = 0;
d3d11->iOffsetAddRef = 0;
d3d11->iOffsetRelease = 0;
HMODULE hD3D11 = LoadLibrary("D3D11.DLL");
if (hD3D11 != NULL) {
HWND hwnd = CreateWindowW(L"STATIC", L"Mumble DXGI Window", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, 0,
NULL, NULL, 0);
D3D11CreateDeviceAndSwapChainType pD3D11CreateDeviceAndSwapChain = reinterpret_cast<D3D11CreateDeviceAndSwapChainType>(GetProcAddress(hD3D11, "D3D11CreateDeviceAndSwapChain"));
DXGI_SWAP_CHAIN_DESC desc;
ZeroMemory(&desc, sizeof(desc));
RECT rcWnd;
BOOL success = GetClientRect(hwnd, &rcWnd);
if (success) {
desc.BufferDesc.Width = rcWnd.right - rcWnd.left;
desc.BufferDesc.Height = rcWnd.bottom - rcWnd.top;
ods("D3D11: Got ClientRect W %d H %d", desc.BufferDesc.Width, desc.BufferDesc.Height);
desc.BufferDesc.RefreshRate.Numerator = 60;
desc.BufferDesc.RefreshRate.Denominator = 1;
desc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
desc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
desc.BufferDesc.Scaling = DXGI_MODE_SCALING_CENTERED;
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc.BufferCount = 2;
desc.OutputWindow = hwnd;
desc.Windowed = true;
desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
IDXGISwapChain *pSwapChain = NULL;
ID3D11Device *pDevice = NULL;
D3D_FEATURE_LEVEL featureLevel;
ID3D11DeviceContext *pDeviceContext = NULL;
HRESULT hr = pD3D11CreateDeviceAndSwapChain(pAdapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, 0, NULL, 0, D3D11_SDK_VERSION, &desc, &pSwapChain, &pDevice, &featureLevel, &pDeviceContext);
if (FAILED(hr))
ods("D3D11: pD3D11CreateDeviceAndSwapChain failure!");
if (pDevice && pDeviceContext && pSwapChain) {
// For VC++ the vtable is located at the base addr. of the object and each function entry is a single pointer. Since p.e. the base classes
// of IDXGISwapChain have a total of 8 functions the 8+Xth entry points to the Xth added function in the derived interface.
void ***vtbl = (void ***) pSwapChain;
void *pPresent = (*vtbl)[8];
int offset = GetFnOffsetInModule(reinterpret_cast<voidFunc>(pPresent), dxgi->wcFileName, ARRAY_NUM_ELEMENTS(dxgi->wcFileName), "D3D11", "Present");
if (offset >= 0) {
if (initializeDXGIData) {
dxgi->iOffsetPresent = offset;
ods("D3D11: Successfully found Present offset: %ls: %d", dxgi->wcFileName, dxgi->iOffsetPresent);
} else {
if (dxgi->iOffsetPresent == offset) {
ods("D3D11: Successfully verified Present offset: %ls: %d", dxgi->wcFileName, dxgi->iOffsetPresent);
} else {
ods("D3D11: Failed to verify Present offset for %ls. Found %d, but previously found %d.", dxgi->wcFileName, offset, dxgi->iOffsetPresent);
}
}
}
void *pResize = (*vtbl)[13];
offset = GetFnOffsetInModule(reinterpret_cast<voidFunc>(pResize), dxgi->wcFileName, ARRAY_NUM_ELEMENTS(dxgi->wcFileName), "D3D11", "ResizeBuffers");
if (offset >= 0) {
if (initializeDXGIData) {
dxgi->iOffsetResize = offset;
ods("D3D11: Successfully found ResizeBuffers offset: %ls: %d", dxgi->wcFileName, dxgi->iOffsetResize);
} else {
if (dxgi->iOffsetResize == offset) {
ods("D3D11: Successfully verified ResizeBuffers offset: %ls: %d", dxgi->wcFileName, dxgi->iOffsetResize);
} else {
ods("D3D11: Failed to verify ResizeBuffers offset for %ls. Found %d, but previously found %d.", dxgi->wcFileName, offset, dxgi->iOffsetResize);
}
}
}
vtbl = (void ***) pDevice;
void *pAddRef = (*vtbl)[1];
offset = GetFnOffsetInModule(reinterpret_cast<voidFunc>(pAddRef), d3d11->wcFileName, ARRAY_NUM_ELEMENTS(d3d11->wcFileName), "D3D11", "AddRef");
if (offset >= 0) {
d3d11->iOffsetAddRef = offset;
ods("D3D11: Successfully found AddRef offset: %ls: %d", d3d11->wcFileName, d3d11->iOffsetAddRef);
}
void *pRelease = (*vtbl)[2];
offset = GetFnOffsetInModule(reinterpret_cast<voidFunc>(pRelease), d3d11->wcFileName, ARRAY_NUM_ELEMENTS(d3d11->wcFileName), "D3D11", "Release");
if (offset >= 0) {
d3d11->iOffsetRelease = offset;
ods("D3D11: Successfully found Release offset: %ls: %d", d3d11->wcFileName, d3d11->iOffsetRelease);
}
}
if (pDevice)
pDevice->Release();
if (pDeviceContext)
pDeviceContext->Release();
if (pSwapChain)
pSwapChain->Release();
} else {
FreeLibrary(hD3D11);
}
DestroyWindow(hwnd);
} else {
FreeLibrary(hD3D11);
}
}
