MAINT-2980 Fix for AMD cards reporting system ram + vram for dedicated vram -- use WMI instead of DxDiag to get dedicated video memory.

1 files changed, 173 insertions, 5 deletions

diff --git a/indra/llwindow/lldxhardware.cpp b/indra/llwindow/lldxhardware.cpp
index ba5bc8fcfb..e7afef63f8 100755
--- a/indra/llwindow/lldxhardware.cpp
+++ b/indra/llwindow/lldxhardware.cpp
@@ -34,9 +34,12 @@
 #include <dxdiag.h>
 #undef INITGUID
 
+#include <wbemidl.h>
+
 #include <boost/tokenizer.hpp>
 
 #include "lldxhardware.h"
+
 #include "llerror.h"
 
 #include "llstring.h"
@@ -53,11 +56,160 @@ LLDXHardware gDXHardware;
 #define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p);   (p)=NULL; } }
 #define SAFE_RELEASE(p)      { if(p) { (p)->Release(); (p)=NULL; } }
 
-std::string get_string(IDxDiagContainer *containerp, WCHAR *wszPropName)
+typedef BOOL ( WINAPI* PfnCoSetProxyBlanket )( IUnknown* pProxy, DWORD dwAuthnSvc, DWORD dwAuthzSvc,
+                                               OLECHAR* pServerPrincName, DWORD dwAuthnLevel, DWORD dwImpLevel,
+                                               RPC_AUTH_IDENTITY_HANDLE pAuthInfo, DWORD dwCapabilities );
+
+HRESULT GetVideoMemoryViaWMI( WCHAR* strInputDeviceID, DWORD* pdwAdapterRam )
 {
     HRESULT hr;
+    bool bGotMemory = false;
+    HRESULT hrCoInitialize = S_OK;
+    IWbemLocator* pIWbemLocator = nullptr;
+    IWbemServices* pIWbemServices = nullptr;
+    BSTR pNamespace = nullptr;
+
+    *pdwAdapterRam = 0;
+    hrCoInitialize = CoInitialize( 0 );
+
+    hr = CoCreateInstance( CLSID_WbemLocator,
+                           nullptr,
+                           CLSCTX_INPROC_SERVER,
+                           IID_IWbemLocator,
+                           ( LPVOID* )&pIWbemLocator );
+#ifdef PRINTF_DEBUGGING
+    if( FAILED( hr ) ) wprintf( L"WMI: CoCreateInstance failed: 0x%0.8x\n", hr );
+#endif
+
+    if( SUCCEEDED( hr ) && pIWbemLocator )
+    {
+        // Using the locator, connect to WMI in the given namespace.
+        pNamespace = SysAllocString( L"\\\\.\\root\\cimv2" );
+
+        hr = pIWbemLocator->ConnectServer( pNamespace, nullptr, nullptr, 0L,
+                                           0L, nullptr, nullptr, &pIWbemServices );
+#ifdef PRINTF_DEBUGGING
+        if( FAILED( hr ) ) wprintf( L"WMI: pIWbemLocator->ConnectServer failed: 0x%0.8x\n", hr );
+#endif
+        if( SUCCEEDED( hr ) && pIWbemServices != 0 )
+        {
+            HINSTANCE hinstOle32 = nullptr;
+
+            hinstOle32 = LoadLibraryW( L"ole32.dll" );
+            if( hinstOle32 )
+            {
+                PfnCoSetProxyBlanket pfnCoSetProxyBlanket = nullptr;
+
+                pfnCoSetProxyBlanket = ( PfnCoSetProxyBlanket )GetProcAddress( hinstOle32, "CoSetProxyBlanket" );
+                if( pfnCoSetProxyBlanket != 0 )
+                {
+                    // Switch security level to IMPERSONATE. 
+                    pfnCoSetProxyBlanket( pIWbemServices, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, nullptr,
+                                          RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, nullptr, 0 );
+                }
+
+                FreeLibrary( hinstOle32 );
+            }
+
+            IEnumWbemClassObject* pEnumVideoControllers = nullptr;
+            BSTR pClassName = nullptr;
+
+            pClassName = SysAllocString( L"Win32_VideoController" );
+
+            hr = pIWbemServices->CreateInstanceEnum( pClassName, 0,
+                                                     nullptr, &pEnumVideoControllers );
+#ifdef PRINTF_DEBUGGING
+            if( FAILED( hr ) ) wprintf( L"WMI: pIWbemServices->CreateInstanceEnum failed: 0x%0.8x\n", hr );
+#endif
+
+            if( SUCCEEDED( hr ) && pEnumVideoControllers )
+            {
+                IWbemClassObject* pVideoControllers[10] = {0};
+                DWORD uReturned = 0;
+                BSTR pPropName = nullptr;
+
+                // Get the first one in the list
+                pEnumVideoControllers->Reset();
+                hr = pEnumVideoControllers->Next( 5000,             // timeout in 5 seconds
+                                                  10,                  // return the first 10
+                                                  pVideoControllers,
+                                                  &uReturned );
+#ifdef PRINTF_DEBUGGING
+                if( FAILED( hr ) ) wprintf( L"WMI: pEnumVideoControllers->Next failed: 0x%0.8x\n", hr );
+                if( uReturned == 0 ) wprintf( L"WMI: pEnumVideoControllers uReturned == 0\n" );
+#endif
+
+                VARIANT var;
+                if( SUCCEEDED( hr ) )
+                {
+                    bool bFound = false;
+                    for( UINT iController = 0; iController < uReturned; iController++ )
+                    {
+                        if ( !pVideoControllers[iController] )
+                            continue;
+
+                        pPropName = SysAllocString( L"PNPDeviceID" );
+                        hr = pVideoControllers[iController]->Get( pPropName, 0L, &var, nullptr, nullptr );
+#ifdef PRINTF_DEBUGGING
+                        if( FAILED( hr ) )
+                            wprintf( L"WMI: pVideoControllers[iController]->Get PNPDeviceID failed: 0x%0.8x\n", hr );
+#endif
+                        if( SUCCEEDED( hr ) )
+                        {
+                            if( wcsstr( var.bstrVal, strInputDeviceID ) != 0 )
+                                bFound = true;
+                        }
+                        VariantClear( &var );
+                        if( pPropName ) SysFreeString( pPropName );
+
+                        if( bFound )
+                        {
+                            pPropName = SysAllocString( L"AdapterRAM" );
+                            hr = pVideoControllers[iController]->Get( pPropName, 0L, &var, nullptr, nullptr );
+#ifdef PRINTF_DEBUGGING
+                            if( FAILED( hr ) )
+                                wprintf( L"WMI: pVideoControllers[iController]->Get AdapterRAM failed: 0x%0.8x\n",
+                                         hr );
+#endif
+                            if( SUCCEEDED( hr ) )
+                            {
+                                bGotMemory = true;
+                                *pdwAdapterRam = var.ulVal;
+                            }
+                            VariantClear( &var );
+                            if( pPropName ) SysFreeString( pPropName );
+                            break;
+                        }
+                        SAFE_RELEASE( pVideoControllers[iController] );
+                    }
+                }
+            }
+
+            if( pClassName )
+                SysFreeString( pClassName );
+            SAFE_RELEASE( pEnumVideoControllers );
+        }
+
+        if( pNamespace )
+            SysFreeString( pNamespace );
+        SAFE_RELEASE( pIWbemServices );
+    }
+
+    SAFE_RELEASE( pIWbemLocator );
+
+    if( SUCCEEDED( hrCoInitialize ) )
+        CoUninitialize();
+
+    if( bGotMemory )
+        return S_OK;
+    else
+        return E_FAIL;
+}
+
+void get_wstring(IDxDiagContainer* containerp, WCHAR* wszPropName, WCHAR* wszPropValue, int outputSize)
+{
+	HRESULT hr;
 	VARIANT var;
-	WCHAR wszPropValue[256];
 
 	VariantInit( &var );
 	hr = containerp->GetProp(wszPropName, &var );
@@ -76,13 +228,19 @@ std::string get_string(IDxDiagContainer *containerp, WCHAR *wszPropName)
 				wcscpy( wszPropValue, (var.boolVal) ? L"true" : L"false" );	/* Flawfinder: ignore */
 				break;
 			case VT_BSTR:
-				wcsncpy( wszPropValue, var.bstrVal, 255 );	/* Flawfinder: ignore */
-				wszPropValue[255] = 0;
+				wcsncpy( wszPropValue, var.bstrVal, outputSize-1 );	/* Flawfinder: ignore */
+				wszPropValue[outputSize-1] = 0;
 				break;
 		}
 	}
 	// Clear the variant (this is needed to free BSTR memory)
 	VariantClear( &var );
+}
+
+std::string get_string(IDxDiagContainer *containerp, WCHAR *wszPropName)
+{
+    WCHAR wszPropValue[256];
+	get_wstring(containerp, wszPropName, wszPropValue, 256);
 
 	return utf16str_to_utf8str(wszPropValue);
 }
@@ -361,8 +519,18 @@ BOOL LLDXHardware::getInfo(BOOL vram_only)
             goto LCleanup;
 		}
 		
-		// Get the English VRAM string
+		DWORD vram = 0;
+
+		WCHAR deviceID[512];
+
+		get_wstring(device_containerp, L"szDeviceID", deviceID, 512);
+		
+		if (SUCCEEDED(GetVideoMemoryViaWMI(deviceID, &vram))) 
 		{
+			mVRAM = vram/(1024*1024);
+		}
+		else
+		{ // Get the English VRAM string
 		  std::string ram_str = get_string(device_containerp, L"szDisplayMemoryEnglish");
 
 		  // We don't need the device any more