The Tor Browser: widget/windows/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/windows/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/windows/GfxInfo.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "mozilla/ArrayUtils.h"
 #include <windows.h>
 #include <setupapi.h>
 #include "gfxWindowsPlatform.h"
 #include "GfxInfo.h"
 #include "GfxInfoWebGL.h"
 #include "nsUnicharUtils.h"
 #include "prenv.h"
 #include "prprf.h"
 #include "GfxDriverInfo.h"
 #include "mozilla/Preferences.h"
 #include "nsPrintfCString.h"
 #if defined(MOZ_CRASHREPORTER)
 #include "nsExceptionHandler.h"
 #include "nsICrashReporter.h"
 #define NS_CRASHREPORTER_CONTRACTID "@mozilla.org/toolkit/crash-reporter;1"
 #endif
 using namespace mozilla;
 using namespace mozilla::widget;
 #ifdef DEBUG
 NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
 #endif
 static const uint32_t allWindowsVersions = 0xffffffff;
 GfxInfo::GfxInfo()
  :  mWindowsVersion(0),
     mHasDualGPU(false),
     mIsGPU2Active(false)
 {
 }
 /* GetD2DEnabled and GetDwriteEnabled shouldn't be called until after gfxPlatform initialization
  * has occurred because they depend on it for information. (See bug 591561) */
 nsresult
 GfxInfo::GetD2DEnabled(bool *aEnabled)
 {
   *aEnabled = gfxWindowsPlatform::GetPlatform()->GetRenderMode() == gfxWindowsPlatform::RENDER_DIRECT2D;
   return NS_OK;
 }
 nsresult
 GfxInfo::GetDWriteEnabled(bool *aEnabled)
 {
   *aEnabled = gfxWindowsPlatform::GetPlatform()->DWriteEnabled();
   return NS_OK;
 }
 /* readonly attribute DOMString DWriteVersion; */
 NS_IMETHODIMP
 GfxInfo::GetDWriteVersion(nsAString & aDwriteVersion)
 {
   gfxWindowsPlatform::GetDLLVersion(L"dwrite.dll", aDwriteVersion);
   return NS_OK;
 }
 #define PIXEL_STRUCT_RGB  1
 #define PIXEL_STRUCT_BGR  2
 /* readonly attribute DOMString cleartypeParameters; */
 NS_IMETHODIMP
 GfxInfo::GetCleartypeParameters(nsAString & aCleartypeParams)
 {
   nsTArray<ClearTypeParameterInfo> clearTypeParams;
   gfxWindowsPlatform::GetPlatform()->GetCleartypeParams(clearTypeParams);
   uint32_t d, numDisplays = clearTypeParams.Length();
   bool displayNames = (numDisplays > 1);
   bool foundData = false;
   nsString outStr;
   for (d = 0; d < numDisplays; d++) {
     ClearTypeParameterInfo& params = clearTypeParams[d];
     if (displayNames) {
       outStr.AppendPrintf("%s [ ", params.displayName.get());
     }
     if (params.gamma >= 0) {
       foundData = true;
       outStr.AppendPrintf("Gamma: %d ", params.gamma);
     }
     if (params.pixelStructure >= 0) {
       foundData = true;
       if (params.pixelStructure == PIXEL_STRUCT_RGB ||
           params.pixelStructure == PIXEL_STRUCT_BGR)
       {
         outStr.AppendPrintf("Pixel Structure: %s ",
                    (params.pixelStructure == PIXEL_STRUCT_RGB ?
                       L"RGB" : L"BGR"));
       } else {
         outStr.AppendPrintf("Pixel Structure: %d ", params.pixelStructure);
       }
     }
     if (params.clearTypeLevel >= 0) {
       foundData = true;
       outStr.AppendPrintf("ClearType Level: %d ", params.clearTypeLevel);
     }
     if (params.enhancedContrast >= 0) {
       foundData = true;
       outStr.AppendPrintf("Enhanced Contrast: %d ", params.enhancedContrast);
     }
     if (displayNames) {
       outStr.Append(MOZ_UTF16("] "));
     }
   }
   if (foundData) {
     aCleartypeParams.Assign(outStr);
     return NS_OK;
   }
   return NS_ERROR_FAILURE;
 }
 static nsresult GetKeyValue(const WCHAR* keyLocation, const WCHAR* keyName, nsAString& destString, int type)
 {
   HKEY key;
   DWORD dwcbData;
   DWORD dValue;
   DWORD resultType;
   LONG result;
   nsresult retval = NS_OK;
   result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, keyLocation, 0, KEY_QUERY_VALUE, &key);
   if (result != ERROR_SUCCESS) {
     return NS_ERROR_FAILURE;
   }
   switch (type) {
     case REG_DWORD: {
       // We only use this for vram size
       dwcbData = sizeof(dValue);
       result = RegQueryValueExW(key, keyName, nullptr, &resultType,
                                 (LPBYTE)&dValue, &dwcbData);
       if (result == ERROR_SUCCESS && resultType == REG_DWORD) {
         dValue = dValue / 1024 / 1024;
         destString.AppendInt(int32_t(dValue));
       } else {
         retval = NS_ERROR_FAILURE;
       }
       break;
     }
     case REG_MULTI_SZ: {
       // A chain of null-separated strings; we convert the nulls to spaces
       WCHAR wCharValue[1024];
       dwcbData = sizeof(wCharValue);
       result = RegQueryValueExW(key, keyName, nullptr, &resultType,
                                 (LPBYTE)wCharValue, &dwcbData);
       if (result == ERROR_SUCCESS && resultType == REG_MULTI_SZ) {
         // This bit here could probably be cleaner.
         bool isValid = false;
         DWORD strLen = dwcbData/sizeof(wCharValue[0]);
         for (DWORD i = 0; i < strLen; i++) {
           if (wCharValue[i] == '\0') {
             if (i < strLen - 1 && wCharValue[i + 1] == '\0') {
               isValid = true;
               break;
             } else {
               wCharValue[i] = ' ';
             }
           }
         }
         // ensure wCharValue is null terminated
         wCharValue[strLen-1] = '\0';
         if (isValid)
           destString = wCharValue;
       } else {
         retval = NS_ERROR_FAILURE;
       }
       break;
     }
   }
   RegCloseKey(key);
   return retval;
 }
 // The driver ID is a string like PCI\VEN_15AD&DEV_0405&SUBSYS_040515AD, possibly
 // followed by &REV_XXXX.  We uppercase the string, and strip the &REV_ part
 // from it, if found.
 static void normalizeDriverId(nsString& driverid) {
   ToUpperCase(driverid);
   int32_t rev = driverid.Find(NS_LITERAL_CSTRING("&REV_"));
   if (rev != -1) {
     driverid.Cut(rev, driverid.Length());
   }
 }
 // The device ID is a string like PCI\VEN_15AD&DEV_0405&SUBSYS_040515AD
 // this function is used to extract the id's out of it
 uint32_t
 ParseIDFromDeviceID(const nsAString &key, const char *prefix, int length)
 {
   nsAutoString id(key);
   ToUpperCase(id);
   int32_t start = id.Find(prefix);
   if (start != -1) {
     id.Cut(0, start + strlen(prefix));
     id.Truncate(length);
   }
   nsresult err;
   return id.ToInteger(&err, 16);
 }
 // OS version in 16.16 major/minor form
 // based on http://msdn.microsoft.com/en-us/library/ms724834(VS.85).aspx
 enum {
   kWindowsUnknown = 0,
   kWindowsXP = 0x50001,
   kWindowsServer2003 = 0x50002,
   kWindowsVista = 0x60000,
   kWindows7 = 0x60001,
   kWindows8 = 0x60002,
   kWindows8_1 = 0x60003
 };
 static int32_t
 WindowsOSVersion()
 {
   static int32_t winVersion = UNINITIALIZED_VALUE;
   OSVERSIONINFO vinfo;
   if (winVersion == UNINITIALIZED_VALUE) {
     vinfo.dwOSVersionInfoSize = sizeof (vinfo);
 #pragma warning(push)
 #pragma warning(disable:4996)
     if (!GetVersionEx(&vinfo)) {
 #pragma warning(pop)
       winVersion = kWindowsUnknown;
     } else {
       winVersion = int32_t(vinfo.dwMajorVersion << 16) + vinfo.dwMinorVersion;
     }
   }
   return winVersion;
 }
 /* Other interesting places for info:
  *   IDXGIAdapter::GetDesc()
  *   IDirectDraw7::GetAvailableVidMem()
  *   e->GetAvailableTextureMem()
  * */
 #define DEVICE_KEY_PREFIX L"\\Registry\\Machine\\"
 nsresult
 GfxInfo::Init()
 {
   nsresult rv = GfxInfoBase::Init();
   DISPLAY_DEVICEW displayDevice;
   displayDevice.cb = sizeof(displayDevice);
   int deviceIndex = 0;
   const char *spoofedWindowsVersion = PR_GetEnv("MOZ_GFX_SPOOF_WINDOWS_VERSION");
   if (spoofedWindowsVersion) {
     PR_sscanf(spoofedWindowsVersion, "%x", &mWindowsVersion);
   } else {
     mWindowsVersion = WindowsOSVersion();
   }
   mDeviceKeyDebug = NS_LITERAL_STRING("PrimarySearch");
   while (EnumDisplayDevicesW(nullptr, deviceIndex, &displayDevice, 0)) {
     if (displayDevice.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
       mDeviceKeyDebug = NS_LITERAL_STRING("NullSearch");
       break;
     }
     deviceIndex++;
   }
   // make sure the string is nullptr terminated
   if (wcsnlen(displayDevice.DeviceKey, ArrayLength(displayDevice.DeviceKey))
       == ArrayLength(displayDevice.DeviceKey)) {
     // we did not find a nullptr
     return rv;
   }
   mDeviceKeyDebug = displayDevice.DeviceKey;
   /* DeviceKey is "reserved" according to MSDN so we'll be careful with it */
   /* check that DeviceKey begins with DEVICE_KEY_PREFIX */
   /* some systems have a DeviceKey starting with \REGISTRY\Machine\ so we need to compare case insenstively */
   if (_wcsnicmp(displayDevice.DeviceKey, DEVICE_KEY_PREFIX, ArrayLength(DEVICE_KEY_PREFIX)-1) != 0)
     return rv;
   // chop off DEVICE_KEY_PREFIX
   mDeviceKey = displayDevice.DeviceKey + ArrayLength(DEVICE_KEY_PREFIX)-1;
   mDeviceID = displayDevice.DeviceID;
   mDeviceString = displayDevice.DeviceString;
   // On Windows 8 and Server 2012 hosts, we want to not block RDP
   // sessions from attempting hardware acceleration.  RemoteFX
   // provides features and functionaltiy that can give a good D3D10 +
   // D2D + DirectWrite experience emulated via a software GPU.
   //
   // Unfortunately, the Device ID is nullptr, and we can't enumerate
   // it using the setup infrastructure (SetupDiGetClassDevsW below
   // will return INVALID_HANDLE_VALUE).
   if (mWindowsVersion == kWindows8 &&
       mDeviceID.Length() == 0 &&
       mDeviceString.EqualsLiteral("RDPUDD Chained DD"))
   {
     WCHAR sysdir[255];
     UINT len = GetSystemDirectory(sysdir, sizeof(sysdir));
     if (len < sizeof(sysdir)) {
       nsString rdpudd(sysdir);
       rdpudd.AppendLiteral("\\rdpudd.dll");
       gfxWindowsPlatform::GetDLLVersion(rdpudd.BeginReading(), mDriverVersion);
       mDriverDate.AssignLiteral("01-01-1970");
       // 0x1414 is Microsoft; 0xfefe is an invented (and unused) code
       mDeviceID.AssignLiteral("PCI\\VEN_1414&DEV_FEFE&SUBSYS_00000000");
     }
   }
   /* create a device information set composed of the current display device */
   HDEVINFO devinfo = SetupDiGetClassDevsW(nullptr, mDeviceID.get(), nullptr,
                                           DIGCF_PRESENT | DIGCF_PROFILE | DIGCF_ALLCLASSES);
   if (devinfo != INVALID_HANDLE_VALUE) {
     HKEY key;
     LONG result;
     WCHAR value[255];
     DWORD dwcbData;
     SP_DEVINFO_DATA devinfoData;
     DWORD memberIndex = 0;
     devinfoData.cbSize = sizeof(devinfoData);
     NS_NAMED_LITERAL_STRING(driverKeyPre, "System\\CurrentControlSet\\Control\\Class\\");
     /* enumerate device information elements in the device information set */
     while (SetupDiEnumDeviceInfo(devinfo, memberIndex++, &devinfoData)) {
       /* get a string that identifies the device's driver key */
       if (SetupDiGetDeviceRegistryPropertyW(devinfo,
                                             &devinfoData,
                                             SPDRP_DRIVER,
                                             nullptr,
                                             (PBYTE)value,
                                             sizeof(value),
                                             nullptr)) {
         nsAutoString driverKey(driverKeyPre);
         driverKey += value;
         result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, driverKey.get(), 0, KEY_QUERY_VALUE, &key);
         if (result == ERROR_SUCCESS) {
           /* we've found the driver we're looking for */
           dwcbData = sizeof(value);
           result = RegQueryValueExW(key, L"DriverVersion", nullptr, nullptr,
                                     (LPBYTE)value, &dwcbData);
           if (result == ERROR_SUCCESS) {
             mDriverVersion = value;
           } else {
             // If the entry wasn't found, assume the worst (0.0.0.0).
             mDriverVersion.AssignLiteral("0.0.0.0");
           }
           dwcbData = sizeof(value);
           result = RegQueryValueExW(key, L"DriverDate", nullptr, nullptr,
                                     (LPBYTE)value, &dwcbData);
           if (result == ERROR_SUCCESS) {
             mDriverDate = value;
           } else {
             // Again, assume the worst
             mDriverDate.AssignLiteral("01-01-1970");
           }
           RegCloseKey(key);
           break;
         }
       }
     }
     SetupDiDestroyDeviceInfoList(devinfo);
   }
   mAdapterVendorID.AppendPrintf("0x%04x", ParseIDFromDeviceID(mDeviceID, "VEN_", 4));
   mAdapterDeviceID.AppendPrintf("0x%04x", ParseIDFromDeviceID(mDeviceID, "&DEV_", 4));
   mAdapterSubsysID  = ParseIDFromDeviceID(mDeviceID,  "&SUBSYS_", 8);
   // We now check for second display adapter.
   // Device interface class for display adapters.
   CLSID GUID_DISPLAY_DEVICE_ARRIVAL;
   HRESULT hresult = CLSIDFromString(L"{1CA05180-A699-450A-9A0C-DE4FBE3DDD89}",
                                &GUID_DISPLAY_DEVICE_ARRIVAL);
   if (hresult == NOERROR) {
     devinfo = SetupDiGetClassDevsW(&GUID_DISPLAY_DEVICE_ARRIVAL,
                                    nullptr, nullptr,
                                    DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);
     if (devinfo != INVALID_HANDLE_VALUE) {
       HKEY key;
       LONG result;
       WCHAR value[255];
       DWORD dwcbData;
       SP_DEVINFO_DATA devinfoData;
       DWORD memberIndex = 0;
       devinfoData.cbSize = sizeof(devinfoData);
       nsAutoString adapterDriver2;
       nsAutoString deviceID2;
       nsAutoString driverVersion2;
       nsAutoString driverDate2;
       uint32_t adapterVendorID2;
       uint32_t adapterDeviceID2;
       NS_NAMED_LITERAL_STRING(driverKeyPre, "System\\CurrentControlSet\\Control\\Class\\");
       /* enumerate device information elements in the device information set */
       while (SetupDiEnumDeviceInfo(devinfo, memberIndex++, &devinfoData)) {
         /* get a string that identifies the device's driver key */
         if (SetupDiGetDeviceRegistryPropertyW(devinfo,
                                               &devinfoData,
                                               SPDRP_DRIVER,
                                               nullptr,
                                               (PBYTE)value,
                                               sizeof(value),
                                               nullptr)) {
           nsAutoString driverKey2(driverKeyPre);
           driverKey2 += value;
           result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, driverKey2.get(), 0, KEY_QUERY_VALUE, &key);
           if (result == ERROR_SUCCESS) {
             dwcbData = sizeof(value);
             result = RegQueryValueExW(key, L"MatchingDeviceId", nullptr,
                                       nullptr, (LPBYTE)value, &dwcbData);
             if (result != ERROR_SUCCESS) {
               continue;
             }
             deviceID2 = value;
             nsAutoString adapterVendorID2String;
             nsAutoString adapterDeviceID2String;
             adapterVendorID2 = ParseIDFromDeviceID(deviceID2, "VEN_", 4);
             adapterVendorID2String.AppendPrintf("0x%04x", adapterVendorID2);
             adapterDeviceID2 = ParseIDFromDeviceID(deviceID2, "&DEV_", 4);
             adapterDeviceID2String.AppendPrintf("0x%04x", adapterDeviceID2);
             if (mAdapterVendorID == adapterVendorID2String &&
                 mAdapterDeviceID == adapterDeviceID2String) {
               RegCloseKey(key);
               continue;
             }
             // If this device is missing driver information, it is unlikely to
             // be a real display adapter.
             if (NS_FAILED(GetKeyValue(driverKey2.get(), L"InstalledDisplayDrivers",
                            adapterDriver2, REG_MULTI_SZ))) {
               RegCloseKey(key);
               continue;
             }
             dwcbData = sizeof(value);
             result = RegQueryValueExW(key, L"DriverVersion", nullptr, nullptr,
                                       (LPBYTE)value, &dwcbData);
             if (result != ERROR_SUCCESS) {
               RegCloseKey(key);
               continue;
             }
             driverVersion2 = value;
             dwcbData = sizeof(value);
             result = RegQueryValueExW(key, L"DriverDate", nullptr, nullptr,
                                       (LPBYTE)value, &dwcbData);
             if (result != ERROR_SUCCESS) {
               RegCloseKey(key);
               continue;
             }
             driverDate2 = value;
             dwcbData = sizeof(value);
             result = RegQueryValueExW(key, L"Device Description", nullptr,
                                       nullptr, (LPBYTE)value, &dwcbData);
             if (result != ERROR_SUCCESS) {
               dwcbData = sizeof(value);
               result = RegQueryValueExW(key, L"DriverDesc", nullptr, nullptr,
                                         (LPBYTE)value, &dwcbData);
             }
             RegCloseKey(key);
             if (result == ERROR_SUCCESS) {
               mHasDualGPU = true;
               mDeviceString2 = value;
               mDeviceID2 = deviceID2;
               mDeviceKey2 = driverKey2;
               mDriverVersion2 = driverVersion2;
               mDriverDate2 = driverDate2;
               mAdapterVendorID2.AppendPrintf("0x%04x", adapterVendorID2);
               mAdapterDeviceID2.AppendPrintf("0x%04x", adapterDeviceID2);
               mAdapterSubsysID2 = ParseIDFromDeviceID(mDeviceID2, "&SUBSYS_", 8);
               break;
             }
           }
         }
       }
       SetupDiDestroyDeviceInfoList(devinfo);
     }
   }
   mHasDriverVersionMismatch = false;
   if (mAdapterVendorID == GfxDriverInfo::GetDeviceVendor(VendorIntel)) {
     // we've had big crashers (bugs 590373 and 595364) apparently correlated
     // with bad Intel driver installations where the DriverVersion reported
     // by the registry was not the version of the DLL.
     bool is64bitApp = sizeof(void*) == 8;
     const char16_t *dllFileName = is64bitApp
                                  ? MOZ_UTF16("igd10umd64.dll")
                                  : MOZ_UTF16("igd10umd32.dll"),
                     *dllFileName2 = is64bitApp
                                  ? MOZ_UTF16("igd10iumd64.dll")
                                  : MOZ_UTF16("igd10iumd32.dll");
     nsString dllVersion, dllVersion2;
     gfxWindowsPlatform::GetDLLVersion((char16_t*)dllFileName, dllVersion);
     gfxWindowsPlatform::GetDLLVersion((char16_t*)dllFileName2, dllVersion2);
     uint64_t dllNumericVersion = 0, dllNumericVersion2 = 0,
              driverNumericVersion = 0, knownSafeMismatchVersion = 0;
     ParseDriverVersion(dllVersion, &dllNumericVersion);
     ParseDriverVersion(dllVersion2, &dllNumericVersion2);
     ParseDriverVersion(mDriverVersion, &driverNumericVersion);
     ParseDriverVersion(NS_LITERAL_STRING("9.17.10.0"), &knownSafeMismatchVersion);
     // If there's a driver version mismatch, consider this harmful only when
     // the driver version is less than knownSafeMismatchVersion.  See the
     // above comment about crashes with old mismatches. If the GetDllVersion
     // call fails, then they return 0, so that will be considered a mismatch.
     if (dllNumericVersion != driverNumericVersion &&
         dllNumericVersion2 != driverNumericVersion &&
         (driverNumericVersion < knownSafeMismatchVersion ||
          std::max(dllNumericVersion, dllNumericVersion2) < knownSafeMismatchVersion)) {
       mHasDriverVersionMismatch = true;
     }
   }
   const char *spoofedDriverVersionString = PR_GetEnv("MOZ_GFX_SPOOF_DRIVER_VERSION");
   if (spoofedDriverVersionString) {
     mDriverVersion.AssignASCII(spoofedDriverVersionString);
   }
   const char *spoofedVendor = PR_GetEnv("MOZ_GFX_SPOOF_VENDOR_ID");
   if (spoofedVendor) {
     mAdapterVendorID.AssignASCII(spoofedVendor);
   }
   const char *spoofedDevice = PR_GetEnv("MOZ_GFX_SPOOF_DEVICE_ID");
   if (spoofedDevice) {
     mAdapterDeviceID.AssignASCII(spoofedDevice);
   }
   AddCrashReportAnnotations();
   return rv;
 }
 /* readonly attribute DOMString adapterDescription; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDescription(nsAString & aAdapterDescription)
 {
   aAdapterDescription = mDeviceString;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDescription2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDescription2(nsAString & aAdapterDescription)
 {
   aAdapterDescription = mDeviceString2;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterRAM; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterRAM(nsAString & aAdapterRAM)
 {
   if (NS_FAILED(GetKeyValue(mDeviceKey.get(), L"HardwareInformation.MemorySize", aAdapterRAM, REG_DWORD)))
     aAdapterRAM = L"Unknown";
   return NS_OK;
 }
 /* readonly attribute DOMString adapterRAM2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterRAM2(nsAString & aAdapterRAM)
 {
   if (!mHasDualGPU) {
     aAdapterRAM.AssignLiteral("");
   } else if (NS_FAILED(GetKeyValue(mDeviceKey2.get(), L"HardwareInformation.MemorySize", aAdapterRAM, REG_DWORD))) {
     aAdapterRAM = L"Unknown";
   }
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriver; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriver(nsAString & aAdapterDriver)
 {
   if (NS_FAILED(GetKeyValue(mDeviceKey.get(), L"InstalledDisplayDrivers", aAdapterDriver, REG_MULTI_SZ)))
     aAdapterDriver = L"Unknown";
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriver2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriver2(nsAString & aAdapterDriver)
 {
   if (!mHasDualGPU) {
     aAdapterDriver.AssignLiteral("");
   } else if (NS_FAILED(GetKeyValue(mDeviceKey2.get(), L"InstalledDisplayDrivers", aAdapterDriver, REG_MULTI_SZ))) {
     aAdapterDriver = L"Unknown";
   }
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverVersion; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverVersion(nsAString & aAdapterDriverVersion)
 {
   aAdapterDriverVersion = mDriverVersion;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverDate; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverDate(nsAString & aAdapterDriverDate)
 {
   aAdapterDriverDate = mDriverDate;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverVersion2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverVersion2(nsAString & aAdapterDriverVersion)
 {
   aAdapterDriverVersion = mDriverVersion2;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDriverDate2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDriverDate2(nsAString & aAdapterDriverDate)
 {
   aAdapterDriverDate = mDriverDate2;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterVendorID; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterVendorID(nsAString & aAdapterVendorID)
 {
   aAdapterVendorID = mAdapterVendorID;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterVendorID2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterVendorID2(nsAString & aAdapterVendorID)
 {
   aAdapterVendorID = mAdapterVendorID2;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDeviceID; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDeviceID(nsAString & aAdapterDeviceID)
 {
   aAdapterDeviceID = mAdapterDeviceID;
   return NS_OK;
 }
 /* readonly attribute DOMString adapterDeviceID2; */
 NS_IMETHODIMP
 GfxInfo::GetAdapterDeviceID2(nsAString & aAdapterDeviceID)
 {
   aAdapterDeviceID = mAdapterDeviceID2;
   return NS_OK;
 }
 /* readonly attribute boolean isGPU2Active; */
 NS_IMETHODIMP
 GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active)
 {
   *aIsGPU2Active = mIsGPU2Active;
   return NS_OK;
 }
 #if defined(MOZ_CRASHREPORTER)
 /* Cisco's VPN software can cause corruption of the floating point state.
  * Make a note of this in our crash reports so that some weird crashes
  * make more sense */
 static void
 CheckForCiscoVPN() {
   LONG result;
   HKEY key;
   /* This will give false positives, but hopefully no false negatives */
   result = RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"Software\\Cisco Systems\\VPN Client", 0, KEY_QUERY_VALUE, &key);
   if (result == ERROR_SUCCESS) {
     RegCloseKey(key);
     CrashReporter::AppendAppNotesToCrashReport(NS_LITERAL_CSTRING("Cisco VPN\n"));
   }
 }
 #endif
 void
 GfxInfo::AddCrashReportAnnotations()
 {
 #if defined(MOZ_CRASHREPORTER)
   CheckForCiscoVPN();
   nsString deviceID, vendorID;
   nsCString narrowDeviceID, narrowVendorID;
   nsAutoString adapterDriverVersionString;
   GetAdapterDeviceID(deviceID);
   CopyUTF16toUTF8(deviceID, narrowDeviceID);
   GetAdapterVendorID(vendorID);
   CopyUTF16toUTF8(vendorID, narrowVendorID);
   GetAdapterDriverVersion(adapterDriverVersionString);
   CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("AdapterVendorID"),
                                      narrowVendorID);
   CrashReporter::AnnotateCrashReport(NS_LITERAL_CSTRING("AdapterDeviceID"),
                                      narrowDeviceID);
   /* Add an App Note for now so that we get the data immediately. These
    * can go away after we store the above in the socorro db */
   nsAutoCString note;
   /* AppendPrintf only supports 32 character strings, mrghh. */
   note.Append("AdapterVendorID: ");
   note.Append(narrowVendorID);
   note.Append(", AdapterDeviceID: ");
   note.Append(narrowDeviceID);
   note.AppendPrintf(", AdapterSubsysID: %08x, ", mAdapterSubsysID);
   note.Append("AdapterDriverVersion: ");
   note.Append(NS_LossyConvertUTF16toASCII(adapterDriverVersionString));
   if (vendorID == GfxDriverInfo::GetDeviceVendor(VendorAll)) {
     /* if we didn't find a valid vendorID lets append the mDeviceID string to try to find out why */
     note.Append(", ");
     LossyAppendUTF16toASCII(mDeviceID, note);
     note.Append(", ");
     LossyAppendUTF16toASCII(mDeviceKeyDebug, note);
     LossyAppendUTF16toASCII(mDeviceKeyDebug, note);
   }
   note.Append("\n");
   if (mHasDualGPU) {
     nsString deviceID2, vendorID2;
     nsAutoString adapterDriverVersionString2;
     nsCString narrowDeviceID2, narrowVendorID2;
     note.AppendLiteral("Has dual GPUs. GPU #2: ");
     GetAdapterDeviceID2(deviceID2);
     CopyUTF16toUTF8(deviceID2, narrowDeviceID2);
     GetAdapterVendorID2(vendorID2);
     CopyUTF16toUTF8(vendorID2, narrowVendorID2);
     GetAdapterDriverVersion2(adapterDriverVersionString2);
     note.Append("AdapterVendorID2: ");
     note.Append(narrowVendorID2);
     note.Append(", AdapterDeviceID2: ");
     note.Append(narrowDeviceID2);
     note.AppendPrintf(", AdapterSubsysID2: %08x, ", mAdapterSubsysID2);
     note.AppendPrintf("AdapterDriverVersion2: ");
     note.Append(NS_LossyConvertUTF16toASCII(adapterDriverVersionString2));
   }
   CrashReporter::AppendAppNotesToCrashReport(note);
 #endif
 }
 static OperatingSystem
 WindowsVersionToOperatingSystem(int32_t aWindowsVersion)
 {
   switch(aWindowsVersion) {
     case kWindowsXP:
       return DRIVER_OS_WINDOWS_XP;
     case kWindowsServer2003:
       return DRIVER_OS_WINDOWS_SERVER_2003;
     case kWindowsVista:
       return DRIVER_OS_WINDOWS_VISTA;
     case kWindows7:
       return DRIVER_OS_WINDOWS_7;
     case kWindows8:
       return DRIVER_OS_WINDOWS_8;
     case kWindows8_1:
       return DRIVER_OS_WINDOWS_8_1;
     case kWindowsUnknown:
     default:
       return DRIVER_OS_UNKNOWN;
     };
 }
 const nsTArray<GfxDriverInfo>&
 GfxInfo::GetGfxDriverInfo()
 {
   if (!mDriverInfo->Length()) {
     /*
      * It should be noted here that more specialized rules on certain features
      * should be inserted -before- more generalized restriction. As the first
      * match for feature/OS/device found in the list will be used for the final
      * blacklisting call.
      */
     /*
      * NVIDIA entries
      */
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_WINDOWS_VISTA,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,17,12,5721), "257.21" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_WINDOWS_7,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,17,12,5721), "257.21" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_WINDOWS_XP,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(6,14,11,8265), "182.65" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_WINDOWS_VISTA,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,17,11,8265), "182.65" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_WINDOWS_7,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,17,11,8265), "182.65" );
     /*
      * AMD/ATI entries
      */
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorATI), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_LESS_THAN, V(8,741,0,0), "10.6" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAMD), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,741,0,0), "10.6" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorATI), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,62,0,0), "9.6" );
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAMD), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(8,62,0,0), "9.6" );
     /*
      * Bug 783517 - crashes in AMD driver on Windows 8
      */
     APPEND_TO_DRIVER_BLOCKLIST_RANGE( DRIVER_OS_WINDOWS_8,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorATI), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_BETWEEN_INCLUSIVE_START, V(8,982,0,0), V(8,983,0,0), "!= 8.982.*.*" );
     APPEND_TO_DRIVER_BLOCKLIST_RANGE( DRIVER_OS_WINDOWS_8,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAMD), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_BETWEEN_INCLUSIVE_START, V(8,982,0,0), V(8,983,0,0), "!= 8.982.*.*" );
     /* OpenGL on any ATI/AMD hardware is discouraged
      * See:
      *  bug 619773 - WebGL: Crash with blue screen : "NMI: Parity Check / Memory Parity Error"
      *  bugs 584403, 584404, 620924 - crashes in atioglxx
      *  + many complaints about incorrect rendering
      */
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorATI), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorATI), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAMD), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorAMD), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     /*
      * Intel entries
      */
     /* implement the blocklist from bug 594877
      * Block all features on any drivers before this, as there's a crash when a MS Hotfix is installed.
      * The crash itself is Direct2D-related, but for safety we block all features.
      */
     #define IMPLEMENT_INTEL_DRIVER_BLOCKLIST(winVer, devFamily, driverVer)                                                      \
       APPEND_TO_DRIVER_BLOCKLIST2( winVer,                                                                                      \
         (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), (GfxDeviceFamily*) GfxDriverInfo::GetDeviceFamily(devFamily), \
         GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,                                                 \
         DRIVER_LESS_THAN, driverVer )
     #define IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(winVer, devFamily, driverVer)                                                      \
       APPEND_TO_DRIVER_BLOCKLIST2( winVer,                                                                                      \
         (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), (GfxDeviceFamily*) GfxDriverInfo::GetDeviceFamily(devFamily), \
         nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,                                                 \
         DRIVER_LESS_THAN, driverVer )
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMA500,   V(7,14,10,1006));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMA900,   GfxDriverInfo::allDriverVersions);
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMA950,   V(7,14,10,1504));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMA3150,  V(7,14,10,2124));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMAX3000, V(7,15,10,1666));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_VISTA, IntelGMAX4500HD, V(8,15,10,2202));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMA500,   V(5,0,0,2026));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMA900,   GfxDriverInfo::allDriverVersions);
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMA950,   V(8,15,10,1930));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMA3150,  V(8,14,10,2117));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMAX3000, V(8,15,10,1930));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(DRIVER_OS_WINDOWS_7, IntelGMAX4500HD, V(8,15,10,2202));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMA500,   V(3,0,20,3200));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMA900,   V(6,14,10,4764));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMA950,   V(6,14,10,4926));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMA3150,  V(6,14,10,5134));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMAX3000, V(6,14,10,5218));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_XP, IntelGMAX4500HD, V(6,14,10,4969));
     // StrechRect seems to suffer from precision issues which leads to artifacting
     // during content drawing starting with at least version 6.14.10.5082
     // and going until 6.14.10.5218. See bug 919454 and bug 949275 for more info.
     APPEND_TO_DRIVER_BLOCKLIST_RANGE(DRIVER_OS_WINDOWS_XP,
       const_cast<nsAString&>(GfxDriverInfo::GetDeviceVendor(VendorIntel)),
       const_cast<GfxDeviceFamily*>(GfxDriverInfo::GetDeviceFamily(IntelGMAX4500HD)),
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_BETWEEN_EXCLUSIVE, V(6,14,10,5076), V(6,14,10,5218), "6.14.10.5218");
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMA500,   V(3,0,20,3200));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMA900,   GfxDriverInfo::allDriverVersions);
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMA950,   V(7,14,10,1504));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMA3150,  V(7,14,10,1910));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMAX3000, V(7,15,10,1666));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_VISTA, IntelGMAX4500HD, V(7,15,10,1666));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMA500,   V(5,0,0,2026));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMA900,   GfxDriverInfo::allDriverVersions);
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMA950,   V(8,15,10,1930));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMA3150,  V(8,14,10,1972));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMAX3000, V(7,15,10,1666));
     IMPLEMENT_INTEL_DRIVER_BLOCKLIST(DRIVER_OS_WINDOWS_7, IntelGMAX4500HD, V(7,15,10,1666));
     /* OpenGL on any Intel hardware is discouraged */
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), GfxDriverInfo::allDevices,
       nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     /* Disable D2D on Win7 on Intel HD Graphics on driver <= 8.15.10.2302
      * See bug 806786
      */
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_WINDOWS_7,
         (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), (GfxDeviceFamily*) GfxDriverInfo::GetDeviceFamily(IntelMobileHDGraphics),
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN_OR_EQUAL, V(8,15,10,2302) );
     /* Disable D2D on Win8 on Intel HD Graphics on driver <= 8.15.10.2302
      * See bug 804144 and 863683
      */
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_WINDOWS_8,
         (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorIntel), (GfxDeviceFamily*) GfxDriverInfo::GetDeviceFamily(IntelMobileHDGraphics),
       nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN_OR_EQUAL, V(8,15,10,2302) );
     /* Disable D3D9 layers on NVIDIA 6100/6150/6200 series due to glitches
      * whilst scrolling. See bugs: 612007, 644787 & 645872.
      */
     APPEND_TO_DRIVER_BLOCKLIST2( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), (GfxDeviceFamily*) GfxDriverInfo::GetDeviceFamily(NvidiaBlockD3D9Layers),
       nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
       DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions );
     /* Microsoft RemoteFX; blocked less than 6.2.0.0 */
     APPEND_TO_DRIVER_BLOCKLIST( DRIVER_OS_ALL,
       (nsAString&) GfxDriverInfo::GetDeviceVendor(VendorMicrosoft), GfxDriverInfo::allDevices,
       GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
       DRIVER_LESS_THAN, V(6,2,0,0), "< 6.2.0.0" );
   }
   return *mDriverInfo;
 }
 nsresult
 GfxInfo::GetFeatureStatusImpl(int32_t aFeature,
                               int32_t *aStatus,
                               nsAString & aSuggestedDriverVersion,
                               const nsTArray<GfxDriverInfo>& aDriverInfo,
                               OperatingSystem* aOS /* = nullptr */)
 {
   NS_ENSURE_ARG_POINTER(aStatus);
   aSuggestedDriverVersion.SetIsVoid(true);
   OperatingSystem os = WindowsVersionToOperatingSystem(mWindowsVersion);
   *aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
   if (aOS)
     *aOS = os;
   // Don't evaluate special cases if we're checking the downloaded blocklist.
   if (!aDriverInfo.Length()) {
     nsAutoString adapterVendorID;
     nsAutoString adapterDeviceID;
     nsAutoString adapterDriverVersionString;
     if (NS_FAILED(GetAdapterVendorID(adapterVendorID)) ||
         NS_FAILED(GetAdapterDeviceID(adapterDeviceID)) ||
         NS_FAILED(GetAdapterDriverVersion(adapterDriverVersionString)))
     {
       return NS_ERROR_FAILURE;
     }
     if (!adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorIntel), nsCaseInsensitiveStringComparator()) &&
         !adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), nsCaseInsensitiveStringComparator()) &&
         !adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorAMD), nsCaseInsensitiveStringComparator()) &&
         !adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorATI), nsCaseInsensitiveStringComparator()) &&
         !adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorMicrosoft), nsCaseInsensitiveStringComparator()) &&
         // FIXME - these special hex values are currently used in xpcshell tests introduced by
         // bug 625160 patch 8/8. Maybe these tests need to be adjusted now that we're only whitelisting
         // intel/ati/nvidia.
         !adapterVendorID.LowerCaseEqualsLiteral("0xabcd") &&
         !adapterVendorID.LowerCaseEqualsLiteral("0xdcba") &&
         !adapterVendorID.LowerCaseEqualsLiteral("0xabab") &&
         !adapterVendorID.LowerCaseEqualsLiteral("0xdcdc"))
     {
       *aStatus = FEATURE_BLOCKED_DEVICE;
       return NS_OK;
     }
     uint64_t driverVersion;
     if (!ParseDriverVersion(adapterDriverVersionString, &driverVersion)) {
       return NS_ERROR_FAILURE;
     }
     // special-case the WinXP test slaves: they have out-of-date drivers, but we still want to
     // whitelist them, actually we do know that this combination of device and driver version
     // works well.
     if (mWindowsVersion == kWindowsXP &&
         adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(VendorNVIDIA), nsCaseInsensitiveStringComparator()) &&
         adapterDeviceID.LowerCaseEqualsLiteral("0x0861") && // GeForce 9400
         driverVersion == V(6,14,11,7756))
     {
       *aStatus = FEATURE_NO_INFO;
       return NS_OK;
     }
     // Windows Server 2003 should be just like Windows XP for present purpose, but still has a different version number.
     // OTOH Windows Server 2008 R1 and R2 already have the same version numbers as Vista and Seven respectively
     if (os == DRIVER_OS_WINDOWS_SERVER_2003)
       os = DRIVER_OS_WINDOWS_XP;
     if (mHasDriverVersionMismatch) {
       if (aFeature == nsIGfxInfo::FEATURE_DIRECT3D_10_LAYERS ||
           aFeature == nsIGfxInfo::FEATURE_DIRECT3D_10_1_LAYERS ||
           aFeature == nsIGfxInfo::FEATURE_DIRECT2D)
       {
         *aStatus = nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION;
         return NS_OK;
       }
     }
   }
   return GfxInfoBase::GetFeatureStatusImpl(aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, &os);
 }
 #ifdef DEBUG
 // Implement nsIGfxInfoDebug
 /* void spoofVendorID (in DOMString aVendorID); */
 NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString & aVendorID)
 {
   mAdapterVendorID = aVendorID;
   return NS_OK;
 }
 /* void spoofDeviceID (in unsigned long aDeviceID); */
 NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString & aDeviceID)
 {
   mAdapterDeviceID = aDeviceID;
   return NS_OK;
 }
 /* void spoofDriverVersion (in DOMString aDriverVersion); */
 NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString & aDriverVersion)
 {
   mDriverVersion = aDriverVersion;
   return NS_OK;
 }
 /* void spoofOSVersion (in unsigned long aVersion); */
 NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion)
 {
   mWindowsVersion = aVersion;
   return NS_OK;
 }
 #endif

The Tor Browser / annotate

widget/windows/GfxInfo.cpp@b8a032363ba2 (annotated)

widget/windows/GfxInfo.cpp