gecko-dev/widget/windows/GfxInfo.cpp

/* -*- 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 "GfxInfo.h"

#include "gfxConfig.h"
#include "GfxDriverInfo.h"
#include "gfxWindowsPlatform.h"
#include "jsapi.h"
#include "nsExceptionHandler.h"
#include "nsPrintfCString.h"
#include "nsUnicharUtils.h"
#include "prenv.h"
#include "prprf.h"
#include "xpcpublic.h"

#include "mozilla/Components.h"
#include "mozilla/Preferences.h"
#include "mozilla/gfx/DeviceManagerDx.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/SSE.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/WindowsProcessMitigations.h"

#include <intrin.h>
#include <windows.h>
#include <devguid.h>   // for GUID_DEVCLASS_BATTERY
#include <setupapi.h>  // for SetupDi*
#include <winioctl.h>  // for IOCTL_*
#include <batclass.h>  // for BATTERY_*

#define NS_CRASHREPORTER_CONTRACTID "@mozilla.org/toolkit/crash-reporter;1"

using namespace mozilla;
using namespace mozilla::gfx;
using namespace mozilla::widget;

#ifdef DEBUG
NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
#endif

static void AssertNotWin32kLockdown() {
  // Check that we are not in Win32k lockdown
  MOZ_DIAGNOSTIC_ASSERT(!IsWin32kLockedDown(),
                        "Invalid Windows GfxInfo API with Win32k lockdown");
}

/* 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) {
  // Telemetry queries this during XPCOM initialization, and there's no
  // gfxPlatform by then. Just bail out if gfxPlatform isn't initialized.
  if (!gfxPlatform::Initialized()) {
    *aEnabled = false;
    return NS_OK;
  }

  // We check gfxConfig rather than the actual render mode, since the UI
  // process does not use Direct2D if the GPU process is enabled. However,
  // content processes can still use Direct2D.
  *aEnabled = gfx::gfxConfig::IsEnabled(gfx::Feature::DIRECT2D);
  return NS_OK;
}

nsresult GfxInfo::GetDWriteEnabled(bool* aEnabled) {
  *aEnabled = gfxWindowsPlatform::GetPlatform()->DWriteEnabled();
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetDWriteVersion(nsAString& aDwriteVersion) {
  gfxWindowsPlatform::GetDLLVersion(L"dwrite.dll", aDwriteVersion);
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetHasBattery(bool* aHasBattery) {
  AssertNotWin32kLockdown();

  *aHasBattery = mHasBattery;
  return NS_OK;
}

int32_t GfxInfo::GetMaxRefreshRate(bool* aMixed) {
  AssertNotWin32kLockdown();

  int32_t maxRefreshRate = -1;
  if (aMixed) {
    *aMixed = false;
  }

  for (auto displayInfo : mDisplayInfo) {
    int32_t refreshRate = int32_t(displayInfo.mRefreshRate);
    if (aMixed && maxRefreshRate > 0 && maxRefreshRate != refreshRate) {
      *aMixed = true;
    }
    maxRefreshRate = std::max(maxRefreshRate, refreshRate);
  }
  return maxRefreshRate;
}

NS_IMETHODIMP
GfxInfo::GetEmbeddedInFirefoxReality(bool* aEmbeddedInFirefoxReality) {
  *aEmbeddedInFirefoxReality = gfxVars::FxREmbedded();
  return NS_OK;
}

#define PIXEL_STRUCT_RGB 1
#define PIXEL_STRUCT_BGR 2

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: %.4g ", params.gamma / 1000.0);
    }

    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 ? u"RGB" : u"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(u"] ");
    }
  }

  if (foundData) {
    aCleartypeParams.Assign(outStr);
    return NS_OK;
  }
  return NS_ERROR_FAILURE;
}

NS_IMETHODIMP
GfxInfo::GetWindowProtocol(nsAString& aWindowProtocol) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
GfxInfo::GetDesktopEnvironment(nsAString& aDesktopEnvironment) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
GfxInfo::GetTestType(nsAString& aTestType) { return NS_ERROR_NOT_IMPLEMENTED; }

static nsresult GetKeyValue(const WCHAR* keyLocation, const WCHAR* keyName,
                            uint32_t& destValue, int type) {
  MOZ_ASSERT(type == REG_DWORD || type == REG_QWORD);
  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) {
        destValue = (uint32_t)(dValue / 1024 / 1024);
      } else {
        retval = NS_ERROR_FAILURE;
      }
      break;
    }
    case REG_QWORD: {
      // We only use this for vram size
      LONGLONG qValue;
      dwcbData = sizeof(qValue);
      result = RegQueryValueExW(key, keyName, nullptr, &resultType,
                                (LPBYTE)&qValue, &dwcbData);
      if (result == ERROR_SUCCESS && resultType == REG_QWORD) {
        destValue = (uint32_t)(qValue / 1024 / 1024);
      } else {
        retval = NS_ERROR_FAILURE;
      }
      break;
    }
  }
  RegCloseKey(key);

  return retval;
}

static nsresult GetKeyValue(const WCHAR* keyLocation, const WCHAR* keyName,
                            nsAString& destString, int type) {
  MOZ_ASSERT(type == REG_MULTI_SZ);

  HKEY key;
  DWORD dwcbData;
  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;
  }

  // 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;
  }

  RegCloseKey(key);

  return retval;
}

static nsresult GetKeyValues(const WCHAR* keyLocation, const WCHAR* keyName,
                             nsTArray<nsString>& destStrings) {
  // First ask for the size of the value
  DWORD size;
  LONG rv = RegGetValueW(HKEY_LOCAL_MACHINE, keyLocation, keyName,
                         RRF_RT_REG_MULTI_SZ, nullptr, nullptr, &size);
  if (rv != ERROR_SUCCESS) {
    return NS_ERROR_FAILURE;
  }

  // Create a buffer with the proper size and retrieve the value
  WCHAR* wCharValue = new WCHAR[size / sizeof(WCHAR)];
  rv = RegGetValueW(HKEY_LOCAL_MACHINE, keyLocation, keyName,
                    RRF_RT_REG_MULTI_SZ, nullptr, (LPBYTE)wCharValue, &size);
  if (rv != ERROR_SUCCESS) {
    delete[] wCharValue;
    return NS_ERROR_FAILURE;
  }

  // The value is a sequence of null-terminated strings, usually terminated by
  // an empty string (\0). RegGetValue ensures that the value is properly
  // terminated with a null character.
  DWORD i = 0;
  DWORD strLen = size / sizeof(WCHAR);
  while (i < strLen) {
    nsString value(wCharValue + i);
    if (!value.IsEmpty()) {
      destStrings.AppendElement(value);
    }
    i += value.Length() + 1;
  }
  delete[] wCharValue;

  return NS_OK;
}

// 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);
  }
  if (id.Equals(L"QCOM", nsCaseInsensitiveStringComparator)) {
    // String format assumptions are broken, so use a Qualcomm PCI Vendor ID
    // for now. See also GfxDriverInfo::GetDeviceVendor.
    return 0x5143;
  }
  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,
  kWindows7 = 0x60001,
  kWindows8 = 0x60002,
  kWindows8_1 = 0x60003,
  kWindows10 = 0xA0000
};

static bool HasBattery() {
  // Helper classes to manage lifetimes of Windows structs.
  class MOZ_STACK_CLASS HDevInfoHolder final {
   public:
    explicit HDevInfoHolder(HDEVINFO aHandle) : mHandle(aHandle) {}

    ~HDevInfoHolder() { ::SetupDiDestroyDeviceInfoList(mHandle); }

   private:
    HDEVINFO mHandle;
  };

  class MOZ_STACK_CLASS HandleHolder final {
   public:
    explicit HandleHolder(HANDLE aHandle) : mHandle(aHandle) {}

    ~HandleHolder() { ::CloseHandle(mHandle); }

   private:
    HANDLE mHandle;
  };

  HDEVINFO hdev =
      ::SetupDiGetClassDevs(&GUID_DEVCLASS_BATTERY, nullptr, nullptr,
                            DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
  if (hdev == INVALID_HANDLE_VALUE) {
    return true;
  }

  HDevInfoHolder hdevHolder(hdev);

  DWORD i = 0;
  SP_DEVICE_INTERFACE_DATA did = {0};
  did.cbSize = sizeof(did);

  while (::SetupDiEnumDeviceInterfaces(hdev, nullptr, &GUID_DEVCLASS_BATTERY, i,
                                       &did)) {
    DWORD bufferSize = 0;
    ::SetupDiGetDeviceInterfaceDetail(hdev, &did, nullptr, 0, &bufferSize,
                                      nullptr);
    if (::GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
      return true;
    }

    UniquePtr<uint8_t[]> buffer(new (std::nothrow) uint8_t[bufferSize]);
    if (!buffer) {
      return true;
    }

    PSP_DEVICE_INTERFACE_DETAIL_DATA pdidd =
        reinterpret_cast<PSP_DEVICE_INTERFACE_DETAIL_DATA>(buffer.get());
    pdidd->cbSize = sizeof(*pdidd);
    if (!::SetupDiGetDeviceInterfaceDetail(hdev, &did, pdidd, bufferSize,
                                           &bufferSize, nullptr)) {
      return true;
    }

    HANDLE hbat = ::CreateFile(pdidd->DevicePath, GENERIC_READ | GENERIC_WRITE,
                               FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr,
                               OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
    if (hbat == INVALID_HANDLE_VALUE) {
      return true;
    }

    HandleHolder hbatHolder(hbat);

    BATTERY_QUERY_INFORMATION bqi = {0};
    DWORD dwWait = 0;
    DWORD dwOut;

    // We need the tag to query the information below.
    if (!::DeviceIoControl(hbat, IOCTL_BATTERY_QUERY_TAG, &dwWait,
                           sizeof(dwWait), &bqi.BatteryTag,
                           sizeof(bqi.BatteryTag), &dwOut, nullptr) ||
        !bqi.BatteryTag) {
      return true;
    }

    BATTERY_INFORMATION bi = {0};
    bqi.InformationLevel = BatteryInformation;

    if (!::DeviceIoControl(hbat, IOCTL_BATTERY_QUERY_INFORMATION, &bqi,
                           sizeof(bqi), &bi, sizeof(bi), &dwOut, nullptr)) {
      return true;
    }

    // If a battery intended for general use (i.e. system use) is not a UPS
    // (i.e. short term), then we know for certain we have a battery.
    if ((bi.Capabilities & BATTERY_SYSTEM_BATTERY) &&
        !(bi.Capabilities & BATTERY_IS_SHORT_TERM)) {
      return true;
    }

    // Otherwise we check the next battery.
    ++i;
  }

  // If we fail to enumerate because there are no more batteries to check, then
  // we can safely say there are indeed no system batteries.
  return ::GetLastError() != ERROR_NO_MORE_ITEMS;
}

/* 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();

  // If we are locked down in a content process, we can't call any of the
  // Win32k APIs below. Any method that accesses members of this class should
  // assert that it's not used in content
  if (IsWin32kLockedDown()) {
    return rv;
  }

  mHasBattery = HasBattery();

  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,%u", &mWindowsVersion,
              &mWindowsBuildNumber);
  } else {
    OSVERSIONINFO vinfo;
    vinfo.dwOSVersionInfoSize = sizeof(vinfo);
#ifdef _MSC_VER
#  pragma warning(push)
#  pragma warning(disable : 4996)
#endif
    if (!GetVersionEx(&vinfo)) {
#ifdef _MSC_VER
#  pragma warning(pop)
#endif
      mWindowsVersion = kWindowsUnknown;
    } else {
      mWindowsVersion =
          int32_t(vinfo.dwMajorVersion << 16) + vinfo.dwMinorVersion;
      mWindowsBuildNumber = vinfo.dwBuildNumber;
    }
  }

  mDeviceKeyDebug = u"PrimarySearch"_ns;

  while (EnumDisplayDevicesW(nullptr, deviceIndex, &displayDevice, 0)) {
    if (displayDevice.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
      mDeviceKeyDebug = u"NullSearch"_ns;
      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 the device key is empty, we are most likely in a remote desktop
   * environment. In this case we set the devicekey to an empty string so
   * it can be handled later.
   */
  if (displayDevice.DeviceKey[0] != '\0') {
    if (_wcsnicmp(displayDevice.DeviceKey, DEVICE_KEY_PREFIX,
                  ArrayLength(DEVICE_KEY_PREFIX) - 1) != 0) {
      return rv;
    }

    // chop off DEVICE_KEY_PREFIX
    mDeviceKey[0] =
        displayDevice.DeviceKey + ArrayLength(DEVICE_KEY_PREFIX) - 1;
  } else {
    mDeviceKey[0].Truncate();
  }

  mDeviceID[0] = displayDevice.DeviceID;
  mDeviceString[0] = 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).
  UINT flags = DIGCF_PRESENT | DIGCF_PROFILE | DIGCF_ALLCLASSES;
  if (mWindowsVersion >= kWindows8 && mDeviceID[0].Length() == 0 &&
      mDeviceString[0].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[0]);
      mDriverDate[0].AssignLiteral("01-01-1970");

      // 0x1414 is Microsoft; 0xfefe is an invented (and unused) code
      mDeviceID[0].AssignLiteral("PCI\\VEN_1414&DEV_FEFE&SUBSYS_00000000");
      flags |= DIGCF_DEVICEINTERFACE;
    }
  }

  /* create a device information set composed of the current display device */
  HDEVINFO devinfo =
      SetupDiGetClassDevsW(nullptr, mDeviceID[0].get(), nullptr, flags);

  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);
    constexpr auto driverKeyPre =
        u"System\\CurrentControlSet\\Control\\Class\\"_ns;
    /* 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[0] = value;
          } else {
            // If the entry wasn't found, assume the worst (0.0.0.0).
            mDriverVersion[0].AssignLiteral("0.0.0.0");
          }
          dwcbData = sizeof(value);
          result = RegQueryValueExW(key, L"DriverDate", nullptr, nullptr,
                                    (LPBYTE)value, &dwcbData);
          if (result == ERROR_SUCCESS) {
            mDriverDate[0] = value;
          } else {
            // Again, assume the worst
            mDriverDate[0].AssignLiteral("01-01-1970");
          }
          RegCloseKey(key);
          break;
        }
      }
    }

    SetupDiDestroyDeviceInfoList(devinfo);
  }

  // It is convenient to have these as integers
  uint32_t adapterVendorID[2] = {0, 0};
  uint32_t adapterDeviceID[2] = {0, 0};
  uint32_t adapterSubsysID[2] = {0, 0};

  adapterVendorID[0] = ParseIDFromDeviceID(mDeviceID[0], "VEN_", 4);
  adapterDeviceID[0] = ParseIDFromDeviceID(mDeviceID[0], "&DEV_", 4);
  adapterSubsysID[0] = ParseIDFromDeviceID(mDeviceID[0], "&SUBSYS_", 8);

  // Sometimes we don't get the valid device using this method.  For now,
  // allow zero vendor or device as valid, as long as the other value is
  // non-zero.
  bool foundValidDevice = (adapterVendorID[0] != 0 || adapterDeviceID[0] != 0);

  // We now check for second display adapter.  If we didn't find the valid
  // device using the original approach, we will try the alternative.

  // 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;

      constexpr auto driverKeyPre =
          u"System\\CurrentControlSet\\Control\\Class\\"_ns;
      /* 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;
            adapterVendorID[1] = ParseIDFromDeviceID(deviceID2, "VEN_", 4);
            adapterDeviceID[1] = ParseIDFromDeviceID(deviceID2, "&DEV_", 4);
            // Skip the devices we already considered, as well as any
            // "zero" ones.
            if ((adapterVendorID[0] == adapterVendorID[1] &&
                 adapterDeviceID[0] == adapterDeviceID[1]) ||
                (adapterVendorID[1] == 0 && adapterDeviceID[1] == 0)) {
              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) {
              // If we didn't find a valid device with the original method
              // take this one, and continue looking for the second GPU.
              if (!foundValidDevice) {
                foundValidDevice = true;
                adapterVendorID[0] = adapterVendorID[1];
                adapterDeviceID[0] = adapterDeviceID[1];
                mDeviceString[0] = value;
                mDeviceID[0] = deviceID2;
                mDeviceKey[0] = driverKey2;
                mDriverVersion[0] = driverVersion2;
                mDriverDate[0] = driverDate2;
                adapterSubsysID[0] =
                    ParseIDFromDeviceID(mDeviceID[0], "&SUBSYS_", 8);
                continue;
              }

              mHasDualGPU = true;
              mDeviceString[1] = value;
              mDeviceID[1] = deviceID2;
              mDeviceKey[1] = driverKey2;
              mDriverVersion[1] = driverVersion2;
              mDriverDate[1] = driverDate2;
              adapterSubsysID[1] =
                  ParseIDFromDeviceID(mDeviceID[1], "&SUBSYS_", 8);
              mAdapterVendorID[1].AppendPrintf("0x%04x", adapterVendorID[1]);
              mAdapterDeviceID[1].AppendPrintf("0x%04x", adapterDeviceID[1]);
              mAdapterSubsysID[1].AppendPrintf("%08x", adapterSubsysID[1]);
              break;
            }
          }
        }
      }

      SetupDiDestroyDeviceInfoList(devinfo);
    }
  }

  mAdapterVendorID[0].AppendPrintf("0x%04x", adapterVendorID[0]);
  mAdapterDeviceID[0].AppendPrintf("0x%04x", adapterDeviceID[0]);
  mAdapterSubsysID[0].AppendPrintf("%08x", adapterSubsysID[0]);

  // Sometimes, the enumeration is not quite right and the two adapters
  // end up being swapped.  Actually enumerate the adapters that come
  // back from the DXGI factory to check, and tag the second as active
  // if found.
  if (mHasDualGPU) {
    nsModuleHandle dxgiModule(LoadLibrarySystem32(L"dxgi.dll"));
    decltype(CreateDXGIFactory)* createDXGIFactory =
        (decltype(CreateDXGIFactory)*)GetProcAddress(dxgiModule,
                                                     "CreateDXGIFactory");

    if (createDXGIFactory) {
      RefPtr<IDXGIFactory> factory = nullptr;
      createDXGIFactory(__uuidof(IDXGIFactory), (void**)(&factory));
      if (factory) {
        RefPtr<IDXGIAdapter> adapter;
        if (SUCCEEDED(factory->EnumAdapters(0, getter_AddRefs(adapter)))) {
          DXGI_ADAPTER_DESC desc;
          PodZero(&desc);
          if (SUCCEEDED(adapter->GetDesc(&desc))) {
            if (desc.VendorId != adapterVendorID[0] &&
                desc.DeviceId != adapterDeviceID[0] &&
                desc.VendorId == adapterVendorID[1] &&
                desc.DeviceId == adapterDeviceID[1]) {
              mActiveGPUIndex = 1;
            }
          }
        }
      }
    }
  }

  mHasDriverVersionMismatch = false;
  if (mAdapterVendorID[mActiveGPUIndex] ==
      GfxDriverInfo::GetDeviceVendor(DeviceVendor::Intel)) {
    // 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.

    // Note that these start without the .dll extension but eventually gain it.
    bool is64bitApp = sizeof(void*) == 8;
    nsAutoString dllFileName(is64bitApp ? u"igd10umd64" : u"igd10umd32");
    nsAutoString dllFileName2(is64bitApp ? u"igd10iumd64" : u"igd10iumd32");

    nsString dllVersion, dllVersion2;
    uint64_t dllNumericVersion = 0, dllNumericVersion2 = 0,
             driverNumericVersion = 0, knownSafeMismatchVersion = 0;

    // Only parse the DLL version for those found in the driver list
    nsAutoString eligibleDLLs;
    if (NS_SUCCEEDED(GetAdapterDriver(eligibleDLLs))) {
      if (FindInReadable(dllFileName, eligibleDLLs)) {
        dllFileName += u".dll"_ns;
        gfxWindowsPlatform::GetDLLVersion(dllFileName.get(), dllVersion);
        ParseDriverVersion(dllVersion, &dllNumericVersion);
      }
      if (FindInReadable(dllFileName2, eligibleDLLs)) {
        dllFileName2 += u".dll"_ns;
        gfxWindowsPlatform::GetDLLVersion(dllFileName2.get(), dllVersion2);
        ParseDriverVersion(dllVersion2, &dllNumericVersion2);
      }
    }

    // Sometimes the DLL is not in the System32 nor SysWOW64 directories. But
    // UserModeDriverName (or UserModeDriverNameWow, if available) might provide
    // the full path to the DLL in some DriverStore FileRepository.
    if (dllNumericVersion == 0 && dllNumericVersion2 == 0) {
      nsTArray<nsString> eligibleDLLpaths;
      const WCHAR* keyLocation = mDeviceKey[mActiveGPUIndex].get();
      GetKeyValues(keyLocation, L"UserModeDriverName", eligibleDLLpaths);
      GetKeyValues(keyLocation, L"UserModeDriverNameWow", eligibleDLLpaths);
      size_t length = eligibleDLLpaths.Length();
      for (size_t i = 0;
           i < length && dllNumericVersion == 0 && dllNumericVersion2 == 0;
           ++i) {
        if (FindInReadable(dllFileName, eligibleDLLpaths[i])) {
          gfxWindowsPlatform::GetDLLVersion(eligibleDLLpaths[i].get(),
                                            dllVersion);
          ParseDriverVersion(dllVersion, &dllNumericVersion);
        } else if (FindInReadable(dllFileName2, eligibleDLLpaths[i])) {
          gfxWindowsPlatform::GetDLLVersion(eligibleDLLpaths[i].get(),
                                            dllVersion2);
          ParseDriverVersion(dllVersion2, &dllNumericVersion2);
        }
      }
    }

    ParseDriverVersion(mDriverVersion[mActiveGPUIndex], &driverNumericVersion);
    ParseDriverVersion(u"9.17.10.0"_ns, &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, we are not calling it a mismatch.
    if ((dllNumericVersion != 0 && dllNumericVersion != driverNumericVersion) ||
        (dllNumericVersion2 != 0 &&
         dllNumericVersion2 != driverNumericVersion)) {
      if (driverNumericVersion < knownSafeMismatchVersion ||
          std::max(dllNumericVersion, dllNumericVersion2) <
              knownSafeMismatchVersion) {
        mHasDriverVersionMismatch = true;
        gfxCriticalNoteOnce
            << "Mismatched driver versions between the registry "
            << NS_ConvertUTF16toUTF8(mDriverVersion[mActiveGPUIndex]).get()
            << " and DLL(s) " << NS_ConvertUTF16toUTF8(dllVersion).get() << ", "
            << NS_ConvertUTF16toUTF8(dllVersion2).get() << " reported.";
      }
    } else if (dllNumericVersion == 0 && dllNumericVersion2 == 0) {
      // Leave it as an asserting error for now, to see if we can find
      // a system that exhibits this kind of a problem internally.
      gfxCriticalErrorOnce()
          << "Potential driver version mismatch ignored due to missing DLLs "
          << NS_ConvertUTF16toUTF8(dllFileName).get()
          << " v=" << NS_ConvertUTF16toUTF8(dllVersion).get() << " and "
          << NS_ConvertUTF16toUTF8(dllFileName2).get()
          << " v=" << NS_ConvertUTF16toUTF8(dllVersion2).get();
    }
  }

  // Get monitor information
  RefreshMonitors();

  const char* spoofedDriverVersionString =
      PR_GetEnv("MOZ_GFX_SPOOF_DRIVER_VERSION");
  if (spoofedDriverVersionString) {
    mDriverVersion[mActiveGPUIndex].AssignASCII(spoofedDriverVersionString);
  }

  const char* spoofedVendor = PR_GetEnv("MOZ_GFX_SPOOF_VENDOR_ID");
  if (spoofedVendor) {
    mAdapterVendorID[mActiveGPUIndex].AssignASCII(spoofedVendor);
  }

  const char* spoofedDevice = PR_GetEnv("MOZ_GFX_SPOOF_DEVICE_ID");
  if (spoofedDevice) {
    mAdapterDeviceID[mActiveGPUIndex].AssignASCII(spoofedDevice);
  }

  AddCrashReportAnnotations();

  return rv;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDescription(nsAString& aAdapterDescription) {
  AssertNotWin32kLockdown();

  aAdapterDescription = mDeviceString[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDescription2(nsAString& aAdapterDescription) {
  AssertNotWin32kLockdown();

  aAdapterDescription = mDeviceString[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::RefreshMonitors() {
  AssertNotWin32kLockdown();

  mDisplayInfo.Clear();

  for (int deviceIndex = 0;; deviceIndex++) {
    DISPLAY_DEVICEW device;
    device.cb = sizeof(device);
    if (!::EnumDisplayDevicesW(nullptr, deviceIndex, &device, 0)) {
      break;
    }

    if (!(device.StateFlags & DISPLAY_DEVICE_ACTIVE)) {
      continue;
    }

    DEVMODEW mode;
    mode.dmSize = sizeof(mode);
    mode.dmDriverExtra = 0;
    if (!::EnumDisplaySettingsW(device.DeviceName, ENUM_CURRENT_SETTINGS,
                                &mode)) {
      continue;
    }

    DisplayInfo displayInfo;

    displayInfo.mScreenWidth = mode.dmPelsWidth;
    displayInfo.mScreenHeight = mode.dmPelsHeight;
    displayInfo.mRefreshRate = mode.dmDisplayFrequency;
    displayInfo.mIsPseudoDisplay =
        !!(device.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER);
    displayInfo.mDeviceString = device.DeviceString;

    mDisplayInfo.AppendElement(displayInfo);
  }
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterRAM(uint32_t* aAdapterRAM) {
  AssertNotWin32kLockdown();

  uint32_t result = 0;
  if (NS_FAILED(GetKeyValue(mDeviceKey[mActiveGPUIndex].get(),
                            L"HardwareInformation.qwMemorySize", result,
                            REG_QWORD)) ||
      result == 0) {
    if (NS_FAILED(GetKeyValue(mDeviceKey[mActiveGPUIndex].get(),
                              L"HardwareInformation.MemorySize", result,
                              REG_DWORD))) {
      result = 0;
    }
  }
  *aAdapterRAM = result;
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterRAM2(uint32_t* aAdapterRAM) {
  AssertNotWin32kLockdown();

  uint32_t result = 0;
  if (mHasDualGPU) {
    if (NS_FAILED(GetKeyValue(mDeviceKey[1 - mActiveGPUIndex].get(),
                              L"HardwareInformation.qwMemorySize", result,
                              REG_QWORD)) ||
        result == 0) {
      if (NS_FAILED(GetKeyValue(mDeviceKey[1 - mActiveGPUIndex].get(),
                                L"HardwareInformation.MemorySize", result,
                                REG_DWORD))) {
        result = 0;
      }
    }
  }
  *aAdapterRAM = result;
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriver(nsAString& aAdapterDriver) {
  AssertNotWin32kLockdown();

  if (NS_FAILED(GetKeyValue(mDeviceKey[mActiveGPUIndex].get(),
                            L"InstalledDisplayDrivers", aAdapterDriver,
                            REG_MULTI_SZ)))
    aAdapterDriver = L"Unknown";
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriver2(nsAString& aAdapterDriver) {
  AssertNotWin32kLockdown();

  if (!mHasDualGPU) {
    aAdapterDriver.Truncate();
  } else if (NS_FAILED(GetKeyValue(mDeviceKey[1 - mActiveGPUIndex].get(),
                                   L"InstalledDisplayDrivers", aAdapterDriver,
                                   REG_MULTI_SZ))) {
    aAdapterDriver = L"Unknown";
  }
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverVendor(nsAString& aAdapterDriverVendor) {
  aAdapterDriverVendor.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverVersion(nsAString& aAdapterDriverVersion) {
  AssertNotWin32kLockdown();

  aAdapterDriverVersion = mDriverVersion[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverDate(nsAString& aAdapterDriverDate) {
  AssertNotWin32kLockdown();

  aAdapterDriverDate = mDriverDate[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverVendor2(nsAString& aAdapterDriverVendor) {
  aAdapterDriverVendor.Truncate();
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverVersion2(nsAString& aAdapterDriverVersion) {
  AssertNotWin32kLockdown();

  aAdapterDriverVersion = mDriverVersion[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDriverDate2(nsAString& aAdapterDriverDate) {
  AssertNotWin32kLockdown();

  aAdapterDriverDate = mDriverDate[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterVendorID(nsAString& aAdapterVendorID) {
  AssertNotWin32kLockdown();

  aAdapterVendorID = mAdapterVendorID[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterVendorID2(nsAString& aAdapterVendorID) {
  AssertNotWin32kLockdown();

  aAdapterVendorID = mAdapterVendorID[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDeviceID(nsAString& aAdapterDeviceID) {
  AssertNotWin32kLockdown();

  aAdapterDeviceID = mAdapterDeviceID[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterDeviceID2(nsAString& aAdapterDeviceID) {
  AssertNotWin32kLockdown();

  aAdapterDeviceID = mAdapterDeviceID[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterSubsysID(nsAString& aAdapterSubsysID) {
  AssertNotWin32kLockdown();

  aAdapterSubsysID = mAdapterSubsysID[mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetAdapterSubsysID2(nsAString& aAdapterSubsysID) {
  AssertNotWin32kLockdown();

  aAdapterSubsysID = mAdapterSubsysID[1 - mActiveGPUIndex];
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active) {
  // This is never the case, as the active GPU ends up being
  // the first one.  It should probably be removed.
  *aIsGPU2Active = false;
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetDisplayInfo(nsTArray<nsString>& aDisplayInfo) {
  AssertNotWin32kLockdown();

  for (auto displayInfo : mDisplayInfo) {
    nsString value;
    value.AppendPrintf("%dx%d@%dHz %s %s", displayInfo.mScreenWidth,
                       displayInfo.mScreenHeight, displayInfo.mRefreshRate,
                       displayInfo.mIsPseudoDisplay ? "Pseudo Display :" : ":",
                       NS_ConvertUTF16toUTF8(displayInfo.mDeviceString).get());

    aDisplayInfo.AppendElement(value);
  }

  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetDisplayWidth(nsTArray<uint32_t>& aDisplayWidth) {
  AssertNotWin32kLockdown();

  for (auto displayInfo : mDisplayInfo) {
    aDisplayWidth.AppendElement((uint32_t)displayInfo.mScreenWidth);
  }
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetDisplayHeight(nsTArray<uint32_t>& aDisplayHeight) {
  AssertNotWin32kLockdown();

  for (auto displayInfo : mDisplayInfo) {
    aDisplayHeight.AppendElement((uint32_t)displayInfo.mScreenHeight);
  }
  return NS_OK;
}

NS_IMETHODIMP
GfxInfo::GetDrmRenderDevice(nsACString& aDrmRenderDevice) {
  return NS_ERROR_NOT_IMPLEMENTED;
}

/* 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("Cisco VPN\n"_ns);
  }
}

void GfxInfo::AddCrashReportAnnotations() {
  AssertNotWin32kLockdown();

  CheckForCiscoVPN();

  if (mHasDriverVersionMismatch) {
    CrashReporter::AppendAppNotesToCrashReport("DriverVersionMismatch\n"_ns);
  }

  nsString deviceID, vendorID, driverVersion, subsysID;
  nsCString narrowDeviceID, narrowVendorID, narrowDriverVersion, narrowSubsysID;

  GetAdapterDeviceID(deviceID);
  CopyUTF16toUTF8(deviceID, narrowDeviceID);
  GetAdapterVendorID(vendorID);
  CopyUTF16toUTF8(vendorID, narrowVendorID);
  GetAdapterDriverVersion(driverVersion);
  CopyUTF16toUTF8(driverVersion, narrowDriverVersion);
  GetAdapterSubsysID(subsysID);
  CopyUTF16toUTF8(subsysID, narrowSubsysID);

  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterVendorID,
                                     narrowVendorID);
  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterDeviceID,
                                     narrowDeviceID);
  CrashReporter::AnnotateCrashReport(
      CrashReporter::Annotation::AdapterDriverVersion, narrowDriverVersion);
  CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterSubsysID,
                                     narrowSubsysID);

  /* Add an App Note, this contains extra information. */
  nsAutoCString note;

  // TODO: We should probably convert this into a proper annotation
  if (vendorID == GfxDriverInfo::GetDeviceVendor(DeviceVendor::All)) {
    /* if we didn't find a valid vendorID lets append the mDeviceID string to
     * try to find out why */
    LossyAppendUTF16toASCII(mDeviceID[mActiveGPUIndex], note);
    note.AppendLiteral(", ");
    LossyAppendUTF16toASCII(mDeviceKeyDebug, note);
  }
  note.AppendLiteral("\n");

  if (mHasDualGPU) {
    nsString deviceID2, vendorID2, subsysID2;
    nsAutoString adapterDriverVersionString2;
    nsCString narrowDeviceID2, narrowVendorID2, narrowSubsysID2;

    // Make a slight difference between the two cases so that we
    // can see it in the crash reports.  It may come in handy.
    if (mActiveGPUIndex == 1) {
      note.AppendLiteral("Has dual GPUs. GPU-#2: ");
    } else {
      note.AppendLiteral("Has dual GPUs. GPU #2: ");
    }
    GetAdapterDeviceID2(deviceID2);
    CopyUTF16toUTF8(deviceID2, narrowDeviceID2);
    GetAdapterVendorID2(vendorID2);
    CopyUTF16toUTF8(vendorID2, narrowVendorID2);
    GetAdapterDriverVersion2(adapterDriverVersionString2);
    GetAdapterSubsysID(subsysID2);
    CopyUTF16toUTF8(subsysID2, narrowSubsysID2);
    note.AppendLiteral("AdapterVendorID2: ");
    note.Append(narrowVendorID2);
    note.AppendLiteral(", AdapterDeviceID2: ");
    note.Append(narrowDeviceID2);
    note.AppendLiteral(", AdapterSubsysID2: ");
    note.Append(narrowSubsysID2);
    note.AppendLiteral(", AdapterDriverVersion2: ");
    note.Append(NS_LossyConvertUTF16toASCII(adapterDriverVersionString2));
  }
  CrashReporter::AppendAppNotesToCrashReport(note);
}

static OperatingSystem WindowsVersionToOperatingSystem(
    int32_t aWindowsVersion) {
  switch (aWindowsVersion) {
    case kWindows7:
      return OperatingSystem::Windows7;
    case kWindows8:
      return OperatingSystem::Windows8;
    case kWindows8_1:
      return OperatingSystem::Windows8_1;
    case kWindows10:
      return OperatingSystem::Windows10;
    case kWindowsUnknown:
    default:
      return OperatingSystem::Unknown;
  }
}

static bool OnlyAllowFeatureOnWhitelistedVendor(int32_t aFeature) {
  switch (aFeature) {
    // The GPU process doesn't need hardware acceleration and can run on
    // devices that we normally block from not being on our whitelist.
    case nsIGfxInfo::FEATURE_GPU_PROCESS:
    // We can mostly assume that ANGLE will work
    case nsIGfxInfo::FEATURE_DIRECT3D_11_ANGLE:
    // Software WebRender is our Basic compositor replacement. It needs to
    // always work.
    case nsIGfxInfo::FEATURE_WEBRENDER_SOFTWARE:
      return false;
    default:
      return true;
  }
}

// Return true if the CPU supports AVX, but the operating system does not.
#if defined(_M_X64)
static inline bool DetectBrokenAVX() {
  int regs[4];
  __cpuid(regs, 0);
  if (regs[0] == 0) {
    // Level not supported.
    return false;
  }

  __cpuid(regs, 1);

  const unsigned AVX = 1u << 28;
  const unsigned XSAVE = 1u << 26;
  if ((regs[2] & (AVX | XSAVE)) != (AVX | XSAVE)) {
    // AVX is not supported on this CPU.
    return false;
  }

  const unsigned OSXSAVE = 1u << 27;
  if ((regs[2] & OSXSAVE) != OSXSAVE) {
    // AVX is supported, but the OS didn't enable it.
    // This can be forced via bcdedit /set xsavedisable 1.
    return true;
  }

  const unsigned AVX_CTRL_BITS = (1 << 1) | (1 << 2);
  return (xgetbv(0) & AVX_CTRL_BITS) != AVX_CTRL_BITS;
}
#endif

const nsTArray<GfxDriverInfo>& GfxInfo::GetGfxDriverInfo() {
  if (!sDriverInfo->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
     * blocklisting call.
     */

    /*
     * NVIDIA entries
     */
    /*
     * The last 5 digit of the NVIDIA driver version maps to the version that
     * NVIDIA uses. The minor version (15, 16, 17) corresponds roughtly to the
     * OS (Vista, Win7, Win7) but they show up in smaller numbers across all
     * OS versions (perhaps due to OS upgrades). So we want to support
     * October 2009+ drivers across all these minor versions.
     *
     * 187.45 (late October 2009) and earlier contain a bug which can cause us
     * to crash on shutdown.
     */
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::NvidiaAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_LESS_THAN_OR_EQUAL, V(8, 15, 11, 8745),
        "FEATURE_FAILURE_NV_W7_15", "nVidia driver > 187.45");
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows7, DeviceFamily::NvidiaAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BETWEEN_INCLUSIVE_START, V(8, 16, 10, 0000), V(8, 16, 11, 8745),
        "FEATURE_FAILURE_NV_W7_16", "nVidia driver > 187.45");
    // Telemetry doesn't show any driver in this range so it might not even be
    // required.
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows7, DeviceFamily::NvidiaAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BETWEEN_INCLUSIVE_START, V(8, 17, 10, 0000), V(8, 17, 11, 8745),
        "FEATURE_FAILURE_NV_W7_17", "nVidia driver > 187.45");

    /*
     * AMD/ATI entries. 8.56.1.15 is the driver that shipped with Windows 7 RTM
     */
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_LESS_THAN, V(8, 56, 1, 15), "FEATURE_FAILURE_AMD1", "8.56.1.15");

    // Bug 1099252
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::AtiAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_EQUAL, V(8, 832, 0, 0), "FEATURE_FAILURE_BUG_1099252");

    // Bug 1118695
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::AtiAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_EQUAL, V(8, 783, 2, 2000), "FEATURE_FAILURE_BUG_1118695");

    // Bug 1587155
    //
    // There are a several reports of strange rendering corruptions with this
    // driver version, with and without webrender. We weren't able to
    // reproduce these problems, but the users were able to update their
    // drivers and it went away. So just to be safe, let's blocklist all
    // gpu use with this particular (very old) driver, restricted
    // to Win10 since we only have reports from that platform.
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows10, DeviceFamily::AtiAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_EQUAL, V(22, 19, 162, 4), "FEATURE_FAILURE_BUG_1587155");

    // Bug 1198815
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_BETWEEN_INCLUSIVE,
        V(15, 200, 0, 0), V(15, 200, 1062, 1004), "FEATURE_FAILURE_BUG_1198815",
        "15.200.0.0-15.200.1062.1004");

    // Bug 1267970
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows10, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_BETWEEN_INCLUSIVE,
        V(15, 200, 0, 0), V(15, 301, 2301, 1002), "FEATURE_FAILURE_BUG_1267970",
        "15.200.0.0-15.301.2301.1002");
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows10, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_BETWEEN_INCLUSIVE,
        V(16, 100, 0, 0), V(16, 300, 2311, 0), "FEATURE_FAILURE_BUG_1267970",
        "16.100.0.0-16.300.2311.0");

    /*
     * Bug 783517 - crashes in AMD driver on Windows 8
     */
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows8, DeviceFamily::AtiAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BETWEEN_INCLUSIVE_START, V(8, 982, 0, 0), V(8, 983, 0, 0),
        "FEATURE_FAILURE_BUG_783517_AMD", "!= 8.982.*.*");

    /*
     *  Bug 1599981 - crashes in AMD driver on Windows 10
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows10, DeviceFamily::RadeonCaicos,
        nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN,
        V(15, 301, 1901, 0), "FEATURE_FAILURE_BUG_1599981");

    /* 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(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_DISCOURAGED,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_OGL_ATI_DIS");

/*
 * Intel entries
 */

/* The driver versions used here come from bug 594877. They might not
 * be particularly relevant anymore.
 */
#define IMPLEMENT_INTEL_DRIVER_BLOCKLIST(winVer, devFamily, driverVer, ruleId) \
  APPEND_TO_DRIVER_BLOCKLIST2(winVer, devFamily, GfxDriverInfo::allFeatures,   \
                              nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,      \
                              DRIVER_LESS_THAN, driverVer, ruleId)

#define IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(winVer, devFamily, driverVer,     \
                                             ruleId)                           \
  APPEND_TO_DRIVER_BLOCKLIST2(winVer, devFamily, nsIGfxInfo::FEATURE_DIRECT2D, \
                              nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,      \
                              DRIVER_BUILD_ID_LESS_THAN, driverVer, ruleId)

    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(OperatingSystem::Windows7,
                                         DeviceFamily::IntelGMA500, 2026,
                                         "FEATURE_FAILURE_594877_7");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(
        OperatingSystem::Windows7, DeviceFamily::IntelGMA900,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_594877_8");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(OperatingSystem::Windows7,
                                         DeviceFamily::IntelGMA950, 1930,
                                         "FEATURE_FAILURE_594877_9");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(OperatingSystem::Windows7,
                                         DeviceFamily::IntelGMA3150, 2117,
                                         "FEATURE_FAILURE_594877_10");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(OperatingSystem::Windows7,
                                         DeviceFamily::IntelGMAX3000, 1930,
                                         "FEATURE_FAILURE_594877_11");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST_D2D(
        OperatingSystem::Windows7, DeviceFamily::IntelHDGraphicsToSandyBridge,
        2202, "FEATURE_FAILURE_594877_12");

    /* Disable Direct2D on Intel GMAX4500 devices because of rendering
     * corruption discovered in bug 1180379. These seems to affect even the most
     * recent drivers. We're black listing all of the devices to be safe even
     * though we've only confirmed the issue on the G45
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelGMAX4500HD,
        nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_1180379");

    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMA500, V(5, 0, 0, 2026),
        "FEATURE_FAILURE_INTEL_16");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMA900,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_INTEL_17");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMA950,
        V(8, 15, 10, 1930), "FEATURE_FAILURE_INTEL_18");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMA3150,
        V(8, 14, 10, 1972), "FEATURE_FAILURE_INTEL_19");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMAX3000,
        V(7, 15, 10, 1666), "FEATURE_FAILURE_INTEL_20");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMAX4500HD,
        V(7, 15, 10, 1666), "FEATURE_FAILURE_INTEL_21");
    IMPLEMENT_INTEL_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelHDGraphicsToSandyBridge,
        V(7, 15, 10, 1666), "FEATURE_FAILURE_INTEL_22");

    // Bug 1074378
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelGMAX4500HD,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_EQUAL, V(8, 15, 10, 1749), "FEATURE_FAILURE_BUG_1074378_1",
        "8.15.10.2342");
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows7, DeviceFamily::IntelHDGraphicsToSandyBridge,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_EQUAL, V(8, 15, 10, 1749), "FEATURE_FAILURE_BUG_1074378_2",
        "8.15.10.2342");

    /* OpenGL on any Intel hardware is discouraged */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelAll,
        nsIGfxInfo::FEATURE_OPENGL_LAYERS, nsIGfxInfo::FEATURE_DISCOURAGED,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_INTEL_OGL_DIS");

    /**
     * Disable acceleration on Intel HD 3000 for graphics drivers
     * <= 8.15.10.2321. See bug 1018278 and bug 1060736.
     */
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows, DeviceFamily::IntelSandyBridge,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BUILD_ID_LESS_THAN_OR_EQUAL, 2321, "FEATURE_FAILURE_BUG_1018278",
        "X.X.X.2342");

    /**
     * Disable D2D on Win7 on Intel Haswell for graphics drivers build id <=
     * 4578. See bug 1432610
     */
    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Windows7,
                                DeviceFamily::IntelHaswell,
                                nsIGfxInfo::FEATURE_DIRECT2D,
                                nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
                                DRIVER_BUILD_ID_LESS_THAN_OR_EQUAL, 4578,
                                "FEATURE_FAILURE_BUG_1432610");

    /* Disable D2D on Win7 on Intel HD Graphics on driver <= 8.15.10.2302
     * See bug 806786
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::IntelMobileHDGraphics,
        nsIGfxInfo::FEATURE_DIRECT2D,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN_OR_EQUAL,
        V(8, 15, 10, 2302), "FEATURE_FAILURE_BUG_806786");

    /* Disable D2D on Win8 on Intel HD Graphics on driver <= 8.15.10.2302
     * See bug 804144 and 863683
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows8, DeviceFamily::IntelMobileHDGraphics,
        nsIGfxInfo::FEATURE_DIRECT2D,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN_OR_EQUAL,
        V(8, 15, 10, 2302), "FEATURE_FAILURE_BUG_804144");

    /* Disable D2D on Win7 on Intel HD Graphics on driver == 8.15.10.2418
     * See bug 1433790
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::IntelHDGraphicsToSandyBridge,
        nsIGfxInfo::FEATURE_DIRECT2D,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_EQUAL,
        V(8, 15, 10, 2418), "FEATURE_FAILURE_BUG_1433790");

    /* Disable D3D11 layers on Intel G41 express graphics and Intel GM965, Intel
     * X3100, for causing device resets. See bug 1116812.
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::Bug1116812,
        nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_BUG_1116812");

    /* Disable D3D11 layers on Intel GMA 3150 for failing to allocate a shared
     * handle for textures. See bug 1207665. Additionally block D2D so we don't
     * accidentally use WARP.
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::Bug1207665,
        nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_BUG_1207665_1");
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::Bug1207665,
        nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_BUG_1207665_2");

    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows10, DeviceFamily::QualcommAll,
        nsIGfxInfo::FEATURE_DIRECT2D,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_QUALCOMM");

    // Bug 1548410. Disable hardware accelerated video decoding on
    // Qualcomm drivers used on Windows on ARM64 which are known to
    // cause BSOD's and output suprious green frames while decoding video.
    // Bug 1592826 expands the blocklist.
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows10, DeviceFamily::QualcommAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN_OR_EQUAL,
        V(25, 18, 10440, 0), "FEATURE_FAILURE_BUG_1592826");

    /* Disable D2D on AMD Catalyst 14.4 until 14.6
     * See bug 984488
     */
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_DIRECT2D,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BETWEEN_INCLUSIVE_START, V(14, 1, 0, 0), V(14, 2, 0, 0),
        "FEATURE_FAILURE_BUG_984488_1", "ATI Catalyst 14.6+");

    /* Disable D3D9 layers on NVIDIA 6100/6150/6200 series due to glitches
     * whilst scrolling. See bugs: 612007, 644787 & 645872.
     */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::NvidiaBlockD3D9Layers,
        nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_BUG_612007");

    /* Microsoft RemoteFX; blocked less than 6.2.0.0 */
    APPEND_TO_DRIVER_BLOCKLIST(
        OperatingSystem::Windows, DeviceFamily::MicrosoftAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_LESS_THAN, V(6, 2, 0, 0), "< 6.2.0.0",
        "FEATURE_FAILURE_REMOTE_FX");

    /* Bug 1008759: Optimus (NVidia) crash.  Disable D2D on NV 310M. */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::Nvidia310M,
        nsIGfxInfo::FEATURE_DIRECT2D, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_BUG_1008759");

    /* Bug 1139503: DXVA crashes with ATI cards on windows 10. */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows10, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_EQUAL,
        V(15, 200, 1006, 0), "FEATURE_FAILURE_BUG_1139503");

    /* Bug 1213107: D3D9 crashes with ATI cards on Windows 7. */
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows7, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_BETWEEN_INCLUSIVE,
        V(8, 861, 0, 0), V(8, 862, 6, 5000), "FEATURE_FAILURE_BUG_1213107_1",
        "Radeon driver > 8.862.6.5000");
    APPEND_TO_DRIVER_BLOCKLIST_RANGE(
        OperatingSystem::Windows7, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_WEBGL_ANGLE,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_BETWEEN_INCLUSIVE,
        V(8, 861, 0, 0), V(8, 862, 6, 5000), "FEATURE_FAILURE_BUG_1213107_2",
        "Radeon driver > 8.862.6.5000");

    /* This may not be needed at all */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::Bug1155608,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN,
        V(8, 15, 10, 2869), "FEATURE_FAILURE_INTEL_W7_HW_DECODING");

    /* Bug 1203199/1092166: DXVA startup crashes on some intel drivers. */
    APPEND_TO_DRIVER_BLOCKLIST(OperatingSystem::Windows, DeviceFamily::IntelAll,
                               nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
                               nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
                               DRIVER_BUILD_ID_LESS_THAN_OR_EQUAL, 2849,
                               "FEATURE_FAILURE_BUG_1203199_1",
                               "Intel driver > X.X.X.2849");

    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::Nvidia8800GTS,
        nsIGfxInfo::FEATURE_HARDWARE_VIDEO_DECODING,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_EQUAL,
        V(9, 18, 13, 4052), "FEATURE_FAILURE_BUG_1203199_2");

    /* Bug 1137716: XXX this should really check for the matching Intel piece as
     * well. Unfortunately, we don't have the infrastructure to do that */
    APPEND_TO_DRIVER_BLOCKLIST_RANGE_GPU2(
        OperatingSystem::Windows7, DeviceFamily::Bug1137716,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BETWEEN_INCLUSIVE, V(8, 17, 12, 5730), V(8, 17, 12, 6901),
        "FEATURE_FAILURE_BUG_1137716", "Nvidia driver > 8.17.12.6901");

    /* Bug 1336710: Crash in rx::Blit9::initialize. */
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::WindowsXP, DeviceFamily::IntelGMAX4500HD,
        nsIGfxInfo::FEATURE_WEBGL_ANGLE, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_BUG_1336710");

    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::WindowsXP, DeviceFamily::IntelHDGraphicsToSandyBridge,
        nsIGfxInfo::FEATURE_WEBGL_ANGLE, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_FAILURE_BUG_1336710");

    /* Bug 1304360: Graphical artifacts with D3D9 on Windows 7. */
    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Windows7,
                                DeviceFamily::IntelGMAX3000,
                                nsIGfxInfo::FEATURE_DIRECT3D_9_LAYERS,
                                nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
                                DRIVER_BUILD_ID_LESS_THAN_OR_EQUAL, 1749,
                                "FEATURE_FAILURE_INTEL_W7_D3D9_LAYERS");

#if defined(_M_X64)
    if (DetectBrokenAVX()) {
      APPEND_TO_DRIVER_BLOCKLIST2(
          OperatingSystem::Windows7, DeviceFamily::IntelAll,
          nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS,
          nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN,
          GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_BUG_1403353");
    }
#endif

    ////////////////////////////////////
    // WebGL

    // Older than 5-15-2016
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
        DRIVER_LESS_THAN, V(16, 200, 1010, 1002), "WEBGL_NATIVE_GL_OLD_AMD");

    // Older than 11-18-2015
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelAll,
        nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
        DRIVER_BUILD_ID_LESS_THAN, 4331, "WEBGL_NATIVE_GL_OLD_INTEL");

    // Older than 2-23-2016
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::NvidiaAll,
        nsIGfxInfo::FEATURE_WEBGL_OPENGL, nsIGfxInfo::FEATURE_DISCOURAGED,
        DRIVER_LESS_THAN, V(10, 18, 13, 6200), "WEBGL_NATIVE_GL_OLD_NVIDIA");

    ////////////////////////////////////
    // FEATURE_DX_INTEROP2

    // All AMD.
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::AtiAll,
        nsIGfxInfo::FEATURE_DX_INTEROP2,
        nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "DX_INTEROP2_AMD_CRASH");

    ////////////////////////////////////
    // FEATURE_D3D11_KEYED_MUTEX

    // bug 1359416
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelHDGraphicsToSandyBridge,
        nsIGfxInfo::FEATURE_D3D11_KEYED_MUTEX,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_LESS_THAN,
        GfxDriverInfo::allDriverVersions, "FEATURE_FAILURE_BUG_1359416");

    // Bug 1447141, for causing device creation crashes.
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::Bug1447141,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_EQUAL, V(15, 201, 2201, 0), "FEATURE_FAILURE_BUG_1447141_1");
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows7, DeviceFamily::Bug1447141,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_EQUAL, V(15, 201, 1701, 0), "FEATURE_FAILURE_BUG_1447141_1");

    // bug 1457758
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::NvidiaAll,
        GfxDriverInfo::allFeatures, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_EQUAL, V(24, 21, 13, 9731), "FEATURE_FAILURE_BUG_1457758");

    ////////////////////////////////////
    // FEATURE_DX_NV12

    // Bug 1437334
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelHDGraphicsToSandyBridge,
        nsIGfxInfo::FEATURE_DX_NV12, nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
        DRIVER_BUILD_ID_LESS_THAN_OR_EQUAL, 4459,
        "FEATURE_BLOCKED_DRIVER_VERSION");

    ////////////////////////////////////
    // FEATURE_DX_P010

    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::NvidiaAll,
        nsIGfxInfo::FEATURE_DX_P010, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_UNQUALIFIED_P010_NVIDIA");

    ////////////////////////////////////
    // FEATURE_WEBRENDER
#ifndef EARLY_BETA_OR_EARLIER
    // Block some specific Nvidia cards for being too low-powered.
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::NvidiaBlockWebRender,
        nsIGfxInfo::FEATURE_WEBRENDER, nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
        DRIVER_LESS_THAN, GfxDriverInfo::allDriverVersions,
        "FEATURE_UNQUALIFIED_WEBRENDER_NVIDIA_BLOCKED");
#endif

    // Block 8.56.1.15/16
    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Windows, DeviceFamily::AtiAll,
                                nsIGfxInfo::FEATURE_WEBRENDER,
                                nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION,
                                DRIVER_LESS_THAN_OR_EQUAL, V(8, 56, 1, 16),
                                "CRASHY_DRIVERS_BUG_1678808");

    ////////////////////////////////////
    // FEATURE_WEBRENDER - ALLOWLIST
    APPEND_TO_DRIVER_BLOCKLIST2_EXT(
        OperatingSystem::Windows, ScreenSizeStatus::All, BatteryStatus::All,
        DesktopEnvironment::All, WindowProtocol::All, DriverVendor::All,
        DeviceFamily::AtiAll, nsIGfxInfo::FEATURE_WEBRENDER,
        nsIGfxInfo::FEATURE_ALLOW_ALWAYS, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_ROLLOUT_AMD");

    APPEND_TO_DRIVER_BLOCKLIST2_EXT(
        OperatingSystem::Windows, ScreenSizeStatus::All, BatteryStatus::All,
        DesktopEnvironment::All, WindowProtocol::All, DriverVendor::All,
        DeviceFamily::NvidiaRolloutWebRender, nsIGfxInfo::FEATURE_WEBRENDER,
        nsIGfxInfo::FEATURE_ALLOW_ALWAYS, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_ROLLOUT_NV");

    APPEND_TO_DRIVER_BLOCKLIST2_EXT(
        OperatingSystem::Windows, ScreenSizeStatus::All, BatteryStatus::All,
        DesktopEnvironment::All, WindowProtocol::All, DriverVendor::All,
        DeviceFamily::IntelRolloutWebRender, nsIGfxInfo::FEATURE_WEBRENDER,
        nsIGfxInfo::FEATURE_ALLOW_ALWAYS, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_ROLLOUT_INTEL");

    APPEND_TO_DRIVER_BLOCKLIST2_EXT(
        OperatingSystem::Windows, ScreenSizeStatus::All, BatteryStatus::All,
        DesktopEnvironment::All, WindowProtocol::All, DriverVendor::All,
        DeviceFamily::QualcommAll, nsIGfxInfo::FEATURE_WEBRENDER,
        nsIGfxInfo::FEATURE_ALLOW_ALWAYS, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_ROLLOUT_QUALCOMM");

    ////////////////////////////////////
    // FEATURE_WEBRENDER_COMPOSITOR

#ifndef EARLY_BETA_OR_EARLIER
    // See also bug 1616874
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelAll,
        nsIGfxInfo::FEATURE_WEBRENDER_COMPOSITOR,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_EQUAL, V(24, 20, 100, 6293),
        "FEATURE_FAILURE_BUG_1602511");

    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Windows, DeviceFamily::AtiAll,
                                nsIGfxInfo::FEATURE_WEBRENDER_COMPOSITOR,
                                nsIGfxInfo::FEATURE_BLOCKED_DEVICE,
                                DRIVER_LESS_THAN_OR_EQUAL, V(8, 17, 10, 1129),
                                "FEATURE_FAILURE_CHROME_BUG_800950");
#endif

    // WebRender is unable to use scissored clears in some cases
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::IntelAll,
        nsIGfxInfo::FEATURE_WEBRENDER_SCISSORED_CACHE_CLEARS,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_FAILURE_BUG_1603515");

    ////////////////////////////////////
    // FEATURE_WEBRENDER_SOFTWARE

    // TODO(aosmond): Bug 1678044 - wdspec tests ignore enable/disable-webrender
    // Once the test infrastructure is fixed, we can remove this blocklist rule
    APPEND_TO_DRIVER_BLOCKLIST2(
        OperatingSystem::Windows, DeviceFamily::AmazonAll,
        nsIGfxInfo::FEATURE_WEBRENDER_SOFTWARE,
        nsIGfxInfo::FEATURE_BLOCKED_DEVICE, DRIVER_COMPARISON_IGNORED,
        V(0, 0, 0, 0), "FEATURE_FAILURE_BUG_1678044");

    ////////////////////////////////////
    // FEATURE_WEBRENDER_SOFTWARE - ALLOWLIST
    APPEND_TO_DRIVER_BLOCKLIST2(OperatingSystem::Windows, DeviceFamily::All,
                                nsIGfxInfo::FEATURE_WEBRENDER_SOFTWARE,
                                nsIGfxInfo::FEATURE_ALLOW_ALWAYS,
                                DRIVER_COMPARISON_IGNORED, V(0, 0, 0, 0),
                                "FEATURE_ROLLOUT_SOFTWARE_WR");
  }
  return *sDriverInfo;
}

nsresult GfxInfo::GetFeatureStatusImpl(
    int32_t aFeature, int32_t* aStatus, nsAString& aSuggestedDriverVersion,
    const nsTArray<GfxDriverInfo>& aDriverInfo, nsACString& aFailureId,
    OperatingSystem* aOS /* = nullptr */) {
  AssertNotWin32kLockdown();

  NS_ENSURE_ARG_POINTER(aStatus);
  aSuggestedDriverVersion.SetIsVoid(true);
  OperatingSystem os = WindowsVersionToOperatingSystem(mWindowsVersion);
  *aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
  if (aOS) *aOS = os;

  if (sShutdownOccurred) {
    return NS_OK;
  }

  // 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))) {
      aFailureId = "FEATURE_FAILURE_GET_ADAPTER";
      *aStatus = FEATURE_BLOCKED_DEVICE;
      return NS_OK;
    }

    if (OnlyAllowFeatureOnWhitelistedVendor(aFeature) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::Intel),
            nsCaseInsensitiveStringComparator) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::NVIDIA),
            nsCaseInsensitiveStringComparator) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::ATI),
            nsCaseInsensitiveStringComparator) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::Microsoft),
            nsCaseInsensitiveStringComparator) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::Parallels),
            nsCaseInsensitiveStringComparator) &&
        !adapterVendorID.Equals(
            GfxDriverInfo::GetDeviceVendor(DeviceVendor::Qualcomm),
            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")) {
      if (adapterVendorID.Equals(
              GfxDriverInfo::GetDeviceVendor(DeviceVendor::MicrosoftHyperV),
              nsCaseInsensitiveStringComparator) ||
          adapterVendorID.Equals(
              GfxDriverInfo::GetDeviceVendor(DeviceVendor::VMWare),
              nsCaseInsensitiveStringComparator) ||
          adapterVendorID.Equals(
              GfxDriverInfo::GetDeviceVendor(DeviceVendor::VirtualBox),
              nsCaseInsensitiveStringComparator)) {
        aFailureId = "FEATURE_FAILURE_VM_VENDOR";
      } else if (adapterVendorID.Equals(GfxDriverInfo::GetDeviceVendor(
                                            DeviceVendor::MicrosoftBasic),
                                        nsCaseInsensitiveStringComparator)) {
        aFailureId = "FEATURE_FAILURE_MICROSOFT_BASIC_VENDOR";
      } else if (adapterVendorID.IsEmpty()) {
        aFailureId = "FEATURE_FAILURE_EMPTY_DEVICE_VENDOR";
      } else {
        aFailureId = "FEATURE_FAILURE_UNKNOWN_DEVICE_VENDOR";
      }
      *aStatus = FEATURE_BLOCKED_DEVICE;
      return NS_OK;
    }

    uint64_t driverVersion;
    if (!ParseDriverVersion(adapterDriverVersionString, &driverVersion)) {
      aFailureId = "FEATURE_FAILURE_PARSE_DRIVER";
      *aStatus = FEATURE_BLOCKED_DRIVER_VERSION;
      return NS_OK;
    }

    if (mHasDriverVersionMismatch) {
      *aStatus = nsIGfxInfo::FEATURE_BLOCKED_MISMATCHED_VERSION;
      return NS_OK;
    }
  }

  return GfxInfoBase::GetFeatureStatusImpl(
      aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, aFailureId, &os);
}

nsresult GfxInfo::FindMonitors(JSContext* aCx, JS::HandleObject aOutArray) {
  AssertNotWin32kLockdown();

  int deviceCount = 0;
  for (auto displayInfo : mDisplayInfo) {
    JS::Rooted<JSObject*> obj(aCx, JS_NewPlainObject(aCx));

    JS::Rooted<JS::Value> screenWidth(aCx,
                                      JS::Int32Value(displayInfo.mScreenWidth));
    JS_SetProperty(aCx, obj, "screenWidth", screenWidth);

    JS::Rooted<JS::Value> screenHeight(
        aCx, JS::Int32Value(displayInfo.mScreenHeight));
    JS_SetProperty(aCx, obj, "screenHeight", screenHeight);

    JS::Rooted<JS::Value> refreshRate(aCx,
                                      JS::Int32Value(displayInfo.mRefreshRate));
    JS_SetProperty(aCx, obj, "refreshRate", refreshRate);

    JS::Rooted<JS::Value> pseudoDisplay(
        aCx, JS::BooleanValue(displayInfo.mIsPseudoDisplay));
    JS_SetProperty(aCx, obj, "pseudoDisplay", pseudoDisplay);

    JS::Rooted<JS::Value> element(aCx, JS::ObjectValue(*obj));
    JS_SetElement(aCx, aOutArray, deviceCount++, element);
  }
  return NS_OK;
}

void GfxInfo::DescribeFeatures(JSContext* aCx, JS::Handle<JSObject*> aObj) {
  // Add the platform neutral features
  GfxInfoBase::DescribeFeatures(aCx, aObj);

  JS::Rooted<JSObject*> obj(aCx);

  gfx::FeatureState& d3d11 = gfxConfig::GetFeature(Feature::D3D11_COMPOSITING);
  if (!InitFeatureObject(aCx, aObj, "d3d11", d3d11, &obj)) {
    return;
  }
  if (d3d11.GetValue() == gfx::FeatureStatus::Available) {
    DeviceManagerDx* dm = DeviceManagerDx::Get();
    JS::Rooted<JS::Value> val(aCx,
                              JS::Int32Value(dm->GetCompositorFeatureLevel()));
    JS_SetProperty(aCx, obj, "version", val);

    val = JS::BooleanValue(dm->IsWARP());
    JS_SetProperty(aCx, obj, "warp", val);

    val = JS::BooleanValue(dm->TextureSharingWorks());
    JS_SetProperty(aCx, obj, "textureSharing", val);

    bool blocklisted = false;
    if (nsCOMPtr<nsIGfxInfo> gfxInfo = components::GfxInfo::Service()) {
      int32_t status;
      nsCString discardFailureId;
      if (SUCCEEDED(
              gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT3D_11_LAYERS,
                                        discardFailureId, &status))) {
        blocklisted = (status != nsIGfxInfo::FEATURE_STATUS_OK);
      }
    }

    val = JS::BooleanValue(blocklisted);
    JS_SetProperty(aCx, obj, "blocklisted", val);
  }

  gfx::FeatureState& d2d = gfxConfig::GetFeature(Feature::DIRECT2D);
  if (!InitFeatureObject(aCx, aObj, "d2d", d2d, &obj)) {
    return;
  }
  {
    const char* version = "1.1";
    JS::Rooted<JSString*> str(aCx, JS_NewStringCopyZ(aCx, version));
    JS::Rooted<JS::Value> val(aCx, JS::StringValue(str));
    JS_SetProperty(aCx, obj, "version", val);
  }
}

#ifdef DEBUG

// Implement nsIGfxInfoDebug

NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString& aVendorID) {
  mAdapterVendorID[mActiveGPUIndex] = aVendorID;
  return NS_OK;
}

NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString& aDeviceID) {
  mAdapterDeviceID[mActiveGPUIndex] = aDeviceID;
  return NS_OK;
}

NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString& aDriverVersion) {
  mDriverVersion[mActiveGPUIndex] = aDriverVersion;
  return NS_OK;
}

NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion) {
  mWindowsVersion = aVersion;
  return NS_OK;
}

NS_IMETHODIMP GfxInfo::FireTestProcess() { return NS_OK; }

#endif