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GfxInfo.cpp
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GfxInfo.cpp
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/* -*- 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 "js/PropertyAndElement.h" // JS_SetElement, JS_SetProperty
#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;
}
}
}