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gecko-dev/widget/android/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 "GLContext.h"
#include "GLContextProvider.h"
#include "nsUnicharUtils.h"
#include "prenv.h"
#include "nsExceptionHandler.h"
#include "nsHashKeys.h"
#include "nsICrashReporter.h"
#include "nsVersionComparator.h"
#include "AndroidBridge.h"
#include "nsIWindowWatcher.h"
#include "nsServiceManagerUtils.h"
#include "mozilla/Preferences.h"
#define NS_CRASHREPORTER_CONTRACTID "@mozilla.org/toolkit/crash-reporter;1"
namespace mozilla {
namespace widget {
class GfxInfo::GLStrings {
nsCString mVendor;
nsCString mRenderer;
nsCString mVersion;
bool mReady;
public:
GLStrings() : mReady(false) {}
const nsCString& Vendor() {
EnsureInitialized();
return mVendor;
}
// This spoofed value wins, even if the environment variable
// MOZ_GFX_SPOOF_GL_VENDOR was set.
void SpoofVendor(const nsCString& s) { mVendor = s; }
const nsCString& Renderer() {
EnsureInitialized();
return mRenderer;
}
// This spoofed value wins, even if the environment variable
// MOZ_GFX_SPOOF_GL_RENDERER was set.
void SpoofRenderer(const nsCString& s) { mRenderer = s; }
const nsCString& Version() {
EnsureInitialized();
return mVersion;
}
// This spoofed value wins, even if the environment variable
// MOZ_GFX_SPOOF_GL_VERSION was set.
void SpoofVersion(const nsCString& s) { mVersion = s; }
void EnsureInitialized() {
if (mReady) {
return;
}
RefPtr<gl::GLContext> gl;
nsCString discardFailureId;
gl = gl::GLContextProvider::CreateHeadless(
gl::CreateContextFlags::REQUIRE_COMPAT_PROFILE, &discardFailureId);
if (!gl) {
// Setting mReady to true here means that we won't retry. Everything will
// remain blacklisted forever. Ideally, we would like to update that once
// any GLContext is successfully created, like the compositor's GLContext.
mReady = true;
return;
}
gl->MakeCurrent();
if (mVendor.IsEmpty()) {
const char* spoofedVendor = PR_GetEnv("MOZ_GFX_SPOOF_GL_VENDOR");
if (spoofedVendor) {
mVendor.Assign(spoofedVendor);
} else {
mVendor.Assign((const char*)gl->fGetString(LOCAL_GL_VENDOR));
}
}
if (mRenderer.IsEmpty()) {
const char* spoofedRenderer = PR_GetEnv("MOZ_GFX_SPOOF_GL_RENDERER");
if (spoofedRenderer) {
mRenderer.Assign(spoofedRenderer);
} else {
mRenderer.Assign((const char*)gl->fGetString(LOCAL_GL_RENDERER));
}
}
if (mVersion.IsEmpty()) {
const char* spoofedVersion = PR_GetEnv("MOZ_GFX_SPOOF_GL_VERSION");
if (spoofedVersion) {
mVersion.Assign(spoofedVersion);
} else {
mVersion.Assign((const char*)gl->fGetString(LOCAL_GL_VERSION));
}
}
mReady = true;
}
};
#ifdef DEBUG
NS_IMPL_ISUPPORTS_INHERITED(GfxInfo, GfxInfoBase, nsIGfxInfoDebug)
#endif
GfxInfo::GfxInfo()
: mInitialized(false),
mGLStrings(new GLStrings),
mOSVersionInteger(0),
mSDKVersion(0) {}
GfxInfo::~GfxInfo() {}
/* 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) { return NS_ERROR_FAILURE; }
nsresult GfxInfo::GetDWriteEnabled(bool* aEnabled) { return NS_ERROR_FAILURE; }
NS_IMETHODIMP
GfxInfo::GetDWriteVersion(nsAString& aDwriteVersion) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetCleartypeParameters(nsAString& aCleartypeParams) {
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetWindowProtocol(nsAString& aWindowProtocol) {
return NS_ERROR_FAILURE;
}
void GfxInfo::EnsureInitialized() {
if (mInitialized) return;
if (!mozilla::AndroidBridge::Bridge()) {
gfxWarning() << "AndroidBridge missing during initialization";
return;
}
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build",
"MODEL", mModel)) {
mAdapterDescription.AppendPrintf("Model: %s",
NS_LossyConvertUTF16toASCII(mModel).get());
}
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "PRODUCT", mProduct)) {
mAdapterDescription.AppendPrintf(
", Product: %s", NS_LossyConvertUTF16toASCII(mProduct).get());
}
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "MANUFACTURER", mManufacturer)) {
mAdapterDescription.AppendPrintf(
", Manufacturer: %s", NS_LossyConvertUTF16toASCII(mManufacturer).get());
}
if (mozilla::AndroidBridge::Bridge()->GetStaticIntField(
"android/os/Build$VERSION", "SDK_INT", &mSDKVersion)) {
// the HARDWARE field isn't available on Android SDK < 8, but we require 9+
// anyway.
MOZ_ASSERT(mSDKVersion >= 8);
if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build", "HARDWARE", mHardware)) {
mAdapterDescription.AppendPrintf(
", Hardware: %s", NS_LossyConvertUTF16toASCII(mHardware).get());
}
} else {
mSDKVersion = 0;
}
nsString release;
mozilla::AndroidBridge::Bridge()->GetStaticStringField(
"android/os/Build$VERSION", "RELEASE", release);
mOSVersion = NS_LossyConvertUTF16toASCII(release);
mOSVersionInteger = 0;
char a[5], b[5], c[5], d[5];
SplitDriverVersion(mOSVersion.get(), a, b, c, d);
uint8_t na = atoi(a);
uint8_t nb = atoi(b);
uint8_t nc = atoi(c);
uint8_t nd = atoi(d);
mOSVersionInteger = (uint32_t(na) << 24) | (uint32_t(nb) << 16) |
(uint32_t(nc) << 8) | uint32_t(nd);
mAdapterDescription.AppendPrintf(
", OpenGL: %s -- %s -- %s", mGLStrings->Vendor().get(),
mGLStrings->Renderer().get(), mGLStrings->Version().get());
AddCrashReportAnnotations();
mInitialized = true;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDescription(nsAString& aAdapterDescription) {
EnsureInitialized();
aAdapterDescription = NS_ConvertASCIItoUTF16(mAdapterDescription);
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDescription2(nsAString& aAdapterDescription) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterRAM(nsAString& aAdapterRAM) {
EnsureInitialized();
aAdapterRAM.Truncate();
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterRAM2(nsAString& aAdapterRAM) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriver(nsAString& aAdapterDriver) {
EnsureInitialized();
aAdapterDriver.Truncate();
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriver2(nsAString& aAdapterDriver) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverVendor(nsAString& aAdapterDriverVendor) {
EnsureInitialized();
aAdapterDriverVendor.Truncate();
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverVendor2(nsAString& aAdapterDriverVendor) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverVersion(nsAString& aAdapterDriverVersion) {
EnsureInitialized();
aAdapterDriverVersion = NS_ConvertASCIItoUTF16(mGLStrings->Version());
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverVersion2(nsAString& aAdapterDriverVersion) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverDate(nsAString& aAdapterDriverDate) {
EnsureInitialized();
aAdapterDriverDate.Truncate();
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDriverDate2(nsAString& aAdapterDriverDate) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterVendorID(nsAString& aAdapterVendorID) {
EnsureInitialized();
aAdapterVendorID = NS_ConvertASCIItoUTF16(mGLStrings->Vendor());
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterVendorID2(nsAString& aAdapterVendorID) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDeviceID(nsAString& aAdapterDeviceID) {
EnsureInitialized();
aAdapterDeviceID = NS_ConvertASCIItoUTF16(mGLStrings->Renderer());
return NS_OK;
}
NS_IMETHODIMP
GfxInfo::GetAdapterDeviceID2(nsAString& aAdapterDeviceID) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterSubsysID(nsAString& aAdapterSubsysID) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetAdapterSubsysID2(nsAString& aAdapterSubsysID) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
GfxInfo::GetIsGPU2Active(bool* aIsGPU2Active) {
EnsureInitialized();
return NS_ERROR_FAILURE;
}
void GfxInfo::AddCrashReportAnnotations() {
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterVendorID,
mGLStrings->Vendor());
CrashReporter::AnnotateCrashReport(CrashReporter::Annotation::AdapterDeviceID,
mGLStrings->Renderer());
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::AdapterDriverVersion, mGLStrings->Version());
}
const nsTArray<GfxDriverInfo>& GfxInfo::GetGfxDriverInfo() {
if (sDriverInfo->IsEmpty()) {
APPEND_TO_DRIVER_BLOCKLIST2(
OperatingSystem::Android,
(nsAString&)GfxDriverInfo::GetDeviceVendor(VendorAll),
(nsAString&)GfxDriverInfo::GetDriverVendor(DriverVendorAll),
GfxDriverInfo::allDevices, nsIGfxInfo::FEATURE_OPENGL_LAYERS,
nsIGfxInfo::FEATURE_STATUS_OK, DRIVER_COMPARISON_IGNORED,
GfxDriverInfo::allDriverVersions, "FEATURE_OK_FORCE_OPENGL");
}
return *sDriverInfo;
}
nsresult GfxInfo::GetFeatureStatusImpl(
int32_t aFeature, int32_t* aStatus, nsAString& aSuggestedDriverVersion,
const nsTArray<GfxDriverInfo>& aDriverInfo, nsACString& aFailureId,
OperatingSystem* aOS /* = nullptr */) {
NS_ENSURE_ARG_POINTER(aStatus);
aSuggestedDriverVersion.SetIsVoid(true);
*aStatus = nsIGfxInfo::FEATURE_STATUS_UNKNOWN;
OperatingSystem os = mOS;
if (aOS) *aOS = os;
if (sShutdownOccurred) {
return NS_OK;
}
// OpenGL layers are never blacklisted on Android.
// This early return is so we avoid potentially slow
// GLStrings initialization on startup when we initialize GL layers.
if (aFeature == nsIGfxInfo::FEATURE_OPENGL_LAYERS) {
*aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
return NS_OK;
}
EnsureInitialized();
if (mGLStrings->Vendor().IsEmpty() || mGLStrings->Renderer().IsEmpty()) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
return NS_OK;
}
// Don't evaluate special cases when evaluating the downloaded blocklist.
if (aDriverInfo.IsEmpty()) {
if (aFeature == nsIGfxInfo::FEATURE_CANVAS2D_ACCELERATION) {
if (mSDKVersion < 11) {
// It's slower than software due to not having a compositing fast path
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_OS_VERSION;
aFailureId = "FEATURE_FAILURE_CANVAS_2D_SDK";
} else if (mGLStrings->Renderer().Find("Vivante GC1000") != -1) {
// Blocklist Vivante GC1000. See bug 1248183.
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILED_CANVAS_2D_HW";
} else {
*aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
}
return NS_OK;
}
if (aFeature == FEATURE_WEBGL_OPENGL) {
if (mGLStrings->Renderer().Find("Adreno 200") != -1 ||
mGLStrings->Renderer().Find("Adreno 205") != -1) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_ADRENO_20x";
return NS_OK;
}
if (mSDKVersion <= 17) {
if (mGLStrings->Renderer().Find("Adreno (TM) 3") != -1) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_ADRENO_3xx";
}
return NS_OK;
}
if (mHardware.EqualsLiteral("ville")) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_VILLE";
return NS_OK;
}
}
if (aFeature == FEATURE_STAGEFRIGHT) {
NS_LossyConvertUTF16toASCII cManufacturer(mManufacturer);
NS_LossyConvertUTF16toASCII cModel(mModel);
NS_LossyConvertUTF16toASCII cHardware(mHardware);
if (cHardware.EqualsLiteral("antares") ||
cHardware.EqualsLiteral("harmony") ||
cHardware.EqualsLiteral("picasso") ||
cHardware.EqualsLiteral("picasso_e") ||
cHardware.EqualsLiteral("ventana") ||
cHardware.EqualsLiteral("rk30board")) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_STAGE_HW";
return NS_OK;
}
if (CompareVersions(mOSVersion.get(), "4.1.0") < 0) {
// Whitelist:
// All Samsung ICS devices, except for:
// Samsung SGH-I717 (Bug 845729)
// Samsung SGH-I727 (Bug 845729)
// Samsung SGH-I757 (Bug 845729)
// All Galaxy nexus ICS devices
// Sony Xperia Ion (LT28) ICS devices
bool isWhitelisted =
cModel.Equals("LT28h", nsCaseInsensitiveCStringComparator()) ||
cManufacturer.Equals("samsung",
nsCaseInsensitiveCStringComparator()) ||
cModel.Equals(
"galaxy nexus",
nsCaseInsensitiveCStringComparator()); // some Galaxy Nexus
// have
// manufacturer=amazon
if (cModel.Find("SGH-I717", true) != -1 ||
cModel.Find("SGH-I727", true) != -1 ||
cModel.Find("SGH-I757", true) != -1) {
isWhitelisted = false;
}
if (!isWhitelisted) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_4_1_HW";
return NS_OK;
}
} else if (CompareVersions(mOSVersion.get(), "4.2.0") < 0) {
// Whitelist:
// All JB phones except for those in blocklist below
// Blocklist:
// Samsung devices from bug 812881 and 853522.
// Motorola XT890 from bug 882342.
bool isBlocklisted = cModel.Find("GT-P3100", true) != -1 ||
cModel.Find("GT-P3110", true) != -1 ||
cModel.Find("GT-P3113", true) != -1 ||
cModel.Find("GT-P5100", true) != -1 ||
cModel.Find("GT-P5110", true) != -1 ||
cModel.Find("GT-P5113", true) != -1 ||
cModel.Find("XT890", true) != -1;
if (isBlocklisted) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_4_2_HW";
return NS_OK;
}
} else if (CompareVersions(mOSVersion.get(), "4.3.0") < 0) {
// Blocklist all Sony devices
if (cManufacturer.Find("Sony", true) != -1) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_4_3_SONY";
return NS_OK;
}
}
}
if (aFeature == FEATURE_WEBRTC_HW_ACCELERATION_ENCODE) {
if (mozilla::AndroidBridge::Bridge()) {
*aStatus = WebRtcHwEncodeSupported();
aFailureId = "FEATURE_FAILURE_WEBRTC_ENCODE";
return NS_OK;
}
}
if (aFeature == FEATURE_WEBRTC_HW_ACCELERATION_DECODE) {
if (mozilla::AndroidBridge::Bridge()) {
*aStatus = WebRtcHwDecodeSupported();
aFailureId = "FEATURE_FAILURE_WEBRTC_DECODE";
return NS_OK;
}
}
if (aFeature == FEATURE_VP8_HW_DECODE ||
aFeature == FEATURE_VP9_HW_DECODE) {
NS_LossyConvertUTF16toASCII model(mModel);
bool isBlocked =
// GIFV crash, see bug 1232911.
model.Equals("GT-N8013", nsCaseInsensitiveCStringComparator());
if (isBlocked) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_VPx";
} else {
*aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
}
return NS_OK;
}
if (aFeature == FEATURE_WEBRENDER) {
NS_LossyConvertUTF16toASCII model(mModel);
bool isBlocked = !model.Equals("Pixel 2", nsCaseInsensitiveCStringComparator());
if (isBlocked) {
*aStatus = nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
aFailureId = "FEATURE_FAILURE_WEBRENDER_BLOCKED_DEVICE";
} else {
*aStatus = nsIGfxInfo::FEATURE_STATUS_OK;
}
return NS_OK;
}
}
return GfxInfoBase::GetFeatureStatusImpl(
aFeature, aStatus, aSuggestedDriverVersion, aDriverInfo, aFailureId, &os);
}
static nsCString FeatureCacheOsVerPrefName(int32_t aFeature) {
nsCString osPrefName;
osPrefName.AppendASCII("gfxinfo.cache.");
osPrefName.AppendInt(aFeature);
osPrefName.AppendASCII(".osver");
return osPrefName;
}
static nsCString FeatureCacheValuePrefName(int32_t aFeature) {
nsCString osPrefName;
osPrefName.AppendASCII("gfxinfo.cache.");
osPrefName.AppendInt(aFeature);
osPrefName.AppendASCII(".value");
return osPrefName;
}
static bool GetCachedFeatureVal(int32_t aFeature, uint32_t aExpectedOsVer,
int32_t& aOutStatus) {
uint32_t osVer = 0;
nsresult rv =
Preferences::GetUint(FeatureCacheOsVerPrefName(aFeature).get(), &osVer);
if (NS_FAILED(rv) || osVer != aExpectedOsVer) {
return false;
}
int32_t status = 0;
rv = Preferences::GetInt(FeatureCacheValuePrefName(aFeature).get(), &status);
if (NS_FAILED(rv)) {
return false;
}
aOutStatus = status;
return true;
}
static void SetCachedFeatureVal(int32_t aFeature, uint32_t aOsVer,
int32_t aStatus) {
// Ignore failures; not much we can do anyway.
Preferences::SetUint(FeatureCacheOsVerPrefName(aFeature).get(), aOsVer);
Preferences::SetInt(FeatureCacheValuePrefName(aFeature).get(), aStatus);
}
int32_t GfxInfo::WebRtcHwEncodeSupported() {
MOZ_ASSERT(mozilla::AndroidBridge::Bridge());
// The Android side of this caclulation is very slow, so we cache the result
// in preferences, invalidating if the OS version changes.
int32_t status = 0;
if (GetCachedFeatureVal(FEATURE_WEBRTC_HW_ACCELERATION_ENCODE,
mOSVersionInteger, status)) {
return status;
}
status = mozilla::AndroidBridge::Bridge()->GetHWEncoderCapability()
? nsIGfxInfo::FEATURE_STATUS_OK
: nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
SetCachedFeatureVal(FEATURE_WEBRTC_HW_ACCELERATION_ENCODE, mOSVersionInteger,
status);
return status;
}
int32_t GfxInfo::WebRtcHwDecodeSupported() {
MOZ_ASSERT(mozilla::AndroidBridge::Bridge());
// The Android side of this caclulation is very slow, so we cache the result
// in preferences, invalidating if the OS version changes.
int32_t status = 0;
if (GetCachedFeatureVal(FEATURE_WEBRTC_HW_ACCELERATION_DECODE,
mOSVersionInteger, status)) {
return status;
}
status = mozilla::AndroidBridge::Bridge()->GetHWDecoderCapability()
? nsIGfxInfo::FEATURE_STATUS_OK
: nsIGfxInfo::FEATURE_BLOCKED_DEVICE;
SetCachedFeatureVal(FEATURE_WEBRTC_HW_ACCELERATION_DECODE, mOSVersionInteger,
status);
return status;
}
#ifdef DEBUG
// Implement nsIGfxInfoDebug
NS_IMETHODIMP GfxInfo::SpoofVendorID(const nsAString& aVendorID) {
mGLStrings->SpoofVendor(NS_LossyConvertUTF16toASCII(aVendorID));
return NS_OK;
}
NS_IMETHODIMP GfxInfo::SpoofDeviceID(const nsAString& aDeviceID) {
mGLStrings->SpoofRenderer(NS_LossyConvertUTF16toASCII(aDeviceID));
return NS_OK;
}
NS_IMETHODIMP GfxInfo::SpoofDriverVersion(const nsAString& aDriverVersion) {
mGLStrings->SpoofVersion(NS_LossyConvertUTF16toASCII(aDriverVersion));
return NS_OK;
}
NS_IMETHODIMP GfxInfo::SpoofOSVersion(uint32_t aVersion) {
EnsureInitialized();
mOSVersion = aVersion;
return NS_OK;
}
NS_IMETHODIMP GfxInfo::FireTestProcess() { return NS_OK; }
#endif
nsString GfxInfo::Model() {
EnsureInitialized();
return mModel;
}
nsString GfxInfo::Hardware() {
EnsureInitialized();
return mHardware;
}
nsString GfxInfo::Product() {
EnsureInitialized();
return mProduct;
}
nsString GfxInfo::Manufacturer() {
EnsureInitialized();
return mManufacturer;
}
uint32_t GfxInfo::OperatingSystemVersion() {
EnsureInitialized();
return mOSVersionInteger;
}
} // namespace widget
} // namespace mozilla
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