gpu/config/gpu_info_collector_win.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gpu/config/gpu_info_collector.h"
   6
   7 // This has to be included before windows.h.
   8 #include "third_party/re2/re2/re2.h"
   9
  10 #include <windows.h>
  11 #include <d3d9.h>
  12 #include <d3d11.h>
  13 #include <dxgi.h>
  14 #include <setupapi.h>
  15
  16 #include "base/command_line.h"
  17 #include "base/debug/trace_event.h"
  18 #include "base/file_util.h"
  19 #include "base/files/file_enumerator.h"
  20 #include "base/files/file_path.h"
  21 #include "base/logging.h"
  22 #include "base/message_loop/message_loop.h"
  23 #include "base/metrics/field_trial.h"
  24 #include "base/metrics/histogram.h"
  25 #include "base/scoped_native_library.h"
  26 #include "base/strings/string16.h"
  27 #include "base/strings/string_number_conversions.h"
  28 #include "base/strings/string_util.h"
  29 #include "base/strings/stringprintf.h"
  30 #include "base/strings/utf_string_conversions.h"
  31 #include "base/threading/thread.h"
  32 #include "base/threading/worker_pool.h"
  33 #include "base/win/registry.h"
  34 #include "base/win/scoped_com_initializer.h"
  35 #include "base/win/scoped_comptr.h"
  36 #include "base/win/windows_version.h"
  37 #include "third_party/libxml/chromium/libxml_utils.h"
  38 #include "ui/gl/gl_implementation.h"
  39 #include "ui/gl/gl_surface_egl.h"
  40
  41 namespace gpu {
  42
  43 namespace {
  44
  45 // This must be kept in sync with histograms.xml.
  46 enum DisplayLinkInstallationStatus {
  47   DISPLAY_LINK_NOT_INSTALLED,
  48   DISPLAY_LINK_7_1_OR_EARLIER,
  49   DISPLAY_LINK_7_2_OR_LATER,
  50   DISPLAY_LINK_INSTALLATION_STATUS_MAX
  51 };
  52
  53 float ReadXMLFloatValue(XmlReader* reader) {
  54   std::string score_string;
  55   if (!reader->ReadElementContent(&score_string))
  56     return 0.0;
  57
  58   double score;
  59   if (!base::StringToDouble(score_string, &score))
  60     return 0.0;
  61
  62   return static_cast<float>(score);
  63 }
  64
  65 GpuPerformanceStats RetrieveGpuPerformanceStats() {
  66   TRACE_EVENT0("gpu", "RetrieveGpuPerformanceStats");
  67
  68   // If the user re-runs the assessment without restarting, the COM API
  69   // returns WINSAT_ASSESSMENT_STATE_NOT_AVAILABLE. Because of that and
  70   // http://crbug.com/124325, read the assessment result files directly.
  71   GpuPerformanceStats stats;
  72
  73   // Get path to WinSAT results files.
  74   wchar_t winsat_results_path[MAX_PATH];
  75   DWORD size = ExpandEnvironmentStrings(
  76       L"%WinDir%\\Performance\\WinSAT\\DataStore\\",
  77       winsat_results_path, MAX_PATH);
  78   if (size == 0 || size > MAX_PATH) {
  79     LOG(ERROR) << "The path to the WinSAT results is too long: "
  80                << size << " chars.";
  81     return stats;
  82   }
  83
  84   // Find most recent formal assessment results.
  85   base::FileEnumerator file_enumerator(
  86       base::FilePath(winsat_results_path),
  87       false,  // not recursive
  88       base::FileEnumerator::FILES,
  89       FILE_PATH_LITERAL("* * Formal.Assessment (*).WinSAT.xml"));
  90
  91   base::FilePath current_results;
  92   for (base::FilePath results = file_enumerator.Next(); !results.empty();
  93        results = file_enumerator.Next()) {
  94     // The filenames start with the date and time as yyyy-mm-dd hh.mm.ss.xxx,
  95     // so the greatest file lexicographically is also the most recent file.
  96     if (base::FilePath::CompareLessIgnoreCase(current_results.value(),
  97                                               results.value()))
  98       current_results = results;
  99   }
 100
 101   std::string current_results_string = current_results.MaybeAsASCII();
 102   if (current_results_string.empty()) {
 103     LOG(ERROR) << "Can't retrieve a valid WinSAT assessment.";
 104     return stats;
 105   }
 106
 107   // Get relevant scores from results file. XML schema at:
 108   // http://msdn.microsoft.com/en-us/library/windows/desktop/aa969210.aspx
 109   XmlReader reader;
 110   if (!reader.LoadFile(current_results_string)) {
 111     LOG(ERROR) << "Could not open WinSAT results file.";
 112     return stats;
 113   }
 114   // Descend into <WinSAT> root element.
 115   if (!reader.SkipToElement() || !reader.Read()) {
 116     LOG(ERROR) << "Could not read WinSAT results file.";
 117     return stats;
 118   }
 119
 120   // Search for <WinSPR> element containing the results.
 121   do {
 122     if (reader.NodeName() == "WinSPR")
 123       break;
 124   } while (reader.Next());
 125   // Descend into <WinSPR> element.
 126   if (!reader.Read()) {
 127     LOG(ERROR) << "Could not find WinSPR element in results file.";
 128     return stats;
 129   }
 130
 131   // Read scores.
 132   for (int depth = reader.Depth(); reader.Depth() == depth; reader.Next()) {
 133     std::string node_name = reader.NodeName();
 134     if (node_name == "SystemScore")
 135       stats.overall = ReadXMLFloatValue(&reader);
 136     else if (node_name == "GraphicsScore")
 137       stats.graphics = ReadXMLFloatValue(&reader);
 138     else if (node_name == "GamingScore")
 139       stats.gaming = ReadXMLFloatValue(&reader);
 140   }
 141
 142   if (stats.overall == 0.0)
 143     LOG(ERROR) << "Could not read overall score from assessment results.";
 144   if (stats.graphics == 0.0)
 145     LOG(ERROR) << "Could not read graphics score from assessment results.";
 146   if (stats.gaming == 0.0)
 147     LOG(ERROR) << "Could not read gaming score from assessment results.";
 148
 149   return stats;
 150 }
 151
 152 GpuPerformanceStats RetrieveGpuPerformanceStatsWithHistograms() {
 153   base::TimeTicks start_time = base::TimeTicks::Now();
 154
 155   GpuPerformanceStats stats = RetrieveGpuPerformanceStats();
 156
 157   UMA_HISTOGRAM_TIMES("GPU.WinSAT.ReadResultsFileTime",
 158                       base::TimeTicks::Now() - start_time);
 159   UMA_HISTOGRAM_CUSTOM_COUNTS("GPU.WinSAT.OverallScore2",
 160                               stats.overall * 10, 10, 200, 50);
 161   UMA_HISTOGRAM_CUSTOM_COUNTS("GPU.WinSAT.GraphicsScore2",
 162                               stats.graphics * 10, 10, 200, 50);
 163   UMA_HISTOGRAM_CUSTOM_COUNTS("GPU.WinSAT.GamingScore2",
 164                               stats.gaming * 10, 10, 200, 50);
 165   UMA_HISTOGRAM_BOOLEAN(
 166       "GPU.WinSAT.HasResults",
 167       stats.overall != 0.0 && stats.graphics != 0.0 && stats.gaming != 0.0);
 168
 169   return stats;
 170 }
 171
 172 // Returns the display link driver version or an invalid version if it is
 173 // not installed.
 174 Version DisplayLinkVersion() {
 175   base::win::RegKey key;
 176
 177   if (key.Open(HKEY_LOCAL_MACHINE, L"SOFTWARE", KEY_READ | KEY_WOW64_64KEY))
 178     return Version();
 179
 180   if (key.OpenKey(L"DisplayLink", KEY_READ | KEY_WOW64_64KEY))
 181     return Version();
 182
 183   if (key.OpenKey(L"Core", KEY_READ | KEY_WOW64_64KEY))
 184     return Version();
 185
 186   base::string16 version;
 187   if (key.ReadValue(L"Version", &version))
 188     return Version();
 189
 190   return Version(base::UTF16ToASCII(version));
 191 }
 192
 193 // Returns whether Lenovo dCute is installed.
 194 bool IsLenovoDCuteInstalled() {
 195   base::win::RegKey key;
 196
 197   if (key.Open(HKEY_LOCAL_MACHINE, L"SOFTWARE", KEY_READ | KEY_WOW64_64KEY))
 198     return false;
 199
 200   if (key.OpenKey(L"Lenovo", KEY_READ | KEY_WOW64_64KEY))
 201     return false;
 202
 203   if (key.OpenKey(L"Lenovo dCute", KEY_READ | KEY_WOW64_64KEY))
 204     return false;
 205
 206   return true;
 207 }
 208
 209 // Determines whether D3D11 won't work, either because it is not supported on
 210 // the machine or because it is known it is likely to crash.
 211 bool D3D11ShouldWork(const GPUInfo& gpu_info) {
 212   // TODO(apatrick): This is a temporary change to see what impact disabling
 213   // D3D11 stats collection has on Canary.
 214 #if 1
 215   return false;
 216 #else
 217   // Windows XP never supports D3D11. It seems to be less stable that D3D9 on
 218   // Vista.
 219   if (base::win::GetVersion() <= base::win::VERSION_VISTA)
 220     return false;
 221
 222   // http://crbug.com/175525.
 223   if (gpu_info.display_link_version.IsValid())
 224     return false;
 225
 226   return true;
 227 #endif
 228 }
 229
 230 // Collects information about the level of D3D11 support and records it in
 231 // the UMA stats. Records no stats when D3D11 in not supported at all.
 232 void CollectD3D11SupportOnWorkerThread() {
 233   TRACE_EVENT0("gpu", "CollectD3D11Support");
 234
 235   typedef HRESULT (WINAPI *D3D11CreateDeviceFunc)(
 236       IDXGIAdapter* adapter,
 237       D3D_DRIVER_TYPE driver_type,
 238       HMODULE software,
 239       UINT flags,
 240       const D3D_FEATURE_LEVEL* feature_levels,
 241       UINT num_feature_levels,
 242       UINT sdk_version,
 243       ID3D11Device** device,
 244       D3D_FEATURE_LEVEL* feature_level,
 245       ID3D11DeviceContext** immediate_context);
 246
 247   // This enumeration must be kept in sync with histograms.xml. Do not reorder
 248   // the members; always add to the end.
 249   enum FeatureLevel {
 250     FEATURE_LEVEL_UNKNOWN,
 251     FEATURE_LEVEL_NO_D3D11_DLL,
 252     FEATURE_LEVEL_NO_CREATE_DEVICE_ENTRY_POINT,
 253     FEATURE_LEVEL_DEVICE_CREATION_FAILED,
 254     FEATURE_LEVEL_9_1,
 255     FEATURE_LEVEL_9_2,
 256     FEATURE_LEVEL_9_3,
 257     FEATURE_LEVEL_10_0,
 258     FEATURE_LEVEL_10_1,
 259     FEATURE_LEVEL_11_0,
 260     NUM_FEATURE_LEVELS
 261   };
 262
 263   FeatureLevel feature_level = FEATURE_LEVEL_UNKNOWN;
 264   UINT bgra_support = 0;
 265
 266   // This module is leaked in case it is hooked by third party software.
 267   base::NativeLibrary d3d11_module = base::LoadNativeLibrary(
 268       base::FilePath(L"d3d11.dll"),
 269       NULL);
 270
 271   if (!d3d11_module) {
 272     feature_level = FEATURE_LEVEL_NO_D3D11_DLL;
 273   } else {
 274     D3D11CreateDeviceFunc create_func =
 275         reinterpret_cast<D3D11CreateDeviceFunc>(
 276             base::GetFunctionPointerFromNativeLibrary(d3d11_module,
 277                                                       "D3D11CreateDevice"));
 278     if (!create_func) {
 279       feature_level = FEATURE_LEVEL_NO_CREATE_DEVICE_ENTRY_POINT;
 280     } else {
 281       static const D3D_FEATURE_LEVEL d3d_feature_levels[] = {
 282         D3D_FEATURE_LEVEL_11_0,
 283         D3D_FEATURE_LEVEL_10_1,
 284         D3D_FEATURE_LEVEL_10_0,
 285         D3D_FEATURE_LEVEL_9_3,
 286         D3D_FEATURE_LEVEL_9_2,
 287         D3D_FEATURE_LEVEL_9_1
 288       };
 289
 290       base::win::ScopedComPtr<ID3D11Device> device;
 291       D3D_FEATURE_LEVEL d3d_feature_level;
 292       base::win::ScopedComPtr<ID3D11DeviceContext> device_context;
 293       HRESULT hr = create_func(NULL,
 294                                D3D_DRIVER_TYPE_HARDWARE,
 295                                NULL,
 296                                0,
 297                                d3d_feature_levels,
 298                                arraysize(d3d_feature_levels),
 299                                D3D11_SDK_VERSION,
 300                                device.Receive(),
 301                                &d3d_feature_level,
 302                                device_context.Receive());
 303       if (FAILED(hr)) {
 304         feature_level = FEATURE_LEVEL_DEVICE_CREATION_FAILED;
 305       } else {
 306         switch (d3d_feature_level) {
 307           case D3D_FEATURE_LEVEL_11_0:
 308             feature_level = FEATURE_LEVEL_11_0;
 309             break;
 310           case D3D_FEATURE_LEVEL_10_1:
 311             feature_level = FEATURE_LEVEL_10_1;
 312             break;
 313           case D3D_FEATURE_LEVEL_10_0:
 314             feature_level = FEATURE_LEVEL_10_0;
 315             break;
 316           case D3D_FEATURE_LEVEL_9_3:
 317             feature_level = FEATURE_LEVEL_9_3;
 318             break;
 319           case D3D_FEATURE_LEVEL_9_2:
 320             feature_level = FEATURE_LEVEL_9_2;
 321             break;
 322           case D3D_FEATURE_LEVEL_9_1:
 323             feature_level = FEATURE_LEVEL_9_1;
 324             break;
 325           default:
 326             NOTREACHED();
 327             break;
 328         }
 329
 330         hr = device->CheckFormatSupport(DXGI_FORMAT_B8G8R8A8_UNORM,
 331                                         &bgra_support);
 332         DCHECK(SUCCEEDED(hr));
 333       }
 334     }
 335   }
 336
 337   UMA_HISTOGRAM_ENUMERATION("GPU.D3D11_FeatureLevel",
 338                             feature_level,
 339                             NUM_FEATURE_LEVELS);
 340
 341   // ANGLE requires at least feature level 10.0. Do not record any further
 342   // stats if ANGLE would not work anyway.
 343   if (feature_level < FEATURE_LEVEL_10_0)
 344     return;
 345
 346   UMA_HISTOGRAM_BOOLEAN(
 347       "GPU.D3D11_B8G8R8A8_Texture2DSupport",
 348       (bgra_support & D3D11_FORMAT_SUPPORT_TEXTURE2D) != 0);
 349   UMA_HISTOGRAM_BOOLEAN(
 350       "GPU.D3D11_B8G8R8A8_RenderTargetSupport",
 351       (bgra_support & D3D11_FORMAT_SUPPORT_RENDER_TARGET) != 0);
 352 }
 353
 354 // Collects information about the level of D3D11 support and records it in
 355 // the UMA stats. Records no stats when D3D11 in not supported at all.
 356 void CollectD3D11Support() {
 357   // D3D11 takes about 50ms to initialize so do this on a worker thread.
 358   base::WorkerPool::PostTask(
 359       FROM_HERE,
 360       base::Bind(CollectD3D11SupportOnWorkerThread),
 361       false);
 362 }
 363 }  // namespace anonymous
 364
 365 #if !defined(GOOGLE_CHROME_BUILD)
 366 void GetAMDVideocardInfo(GPUInfo* gpu_info) {
 367   DCHECK(gpu_info);
 368   return;
 369 }
 370 #else
 371 // This function has a real implementation for official builds that can
 372 // be found in src/third_party/amd.
 373 void GetAMDVideocardInfo(GPUInfo* gpu_info);
 374 #endif
 375
 376 bool CollectDriverInfoD3D(const std::wstring& device_id,
 377                           GPUInfo* gpu_info) {
 378   TRACE_EVENT0("gpu", "CollectDriverInfoD3D");
 379
 380   // create device info for the display device
 381   HDEVINFO device_info = SetupDiGetClassDevsW(
 382       NULL, device_id.c_str(), NULL,
 383       DIGCF_PRESENT | DIGCF_PROFILE | DIGCF_ALLCLASSES);
 384   if (device_info == INVALID_HANDLE_VALUE) {
 385     LOG(ERROR) << "Creating device info failed";
 386     return false;
 387   }
 388
 389   DWORD index = 0;
 390   bool found = false;
 391   SP_DEVINFO_DATA device_info_data;
 392   device_info_data.cbSize = sizeof(device_info_data);
 393   while (SetupDiEnumDeviceInfo(device_info, index++, &device_info_data)) {
 394     WCHAR value[255];
 395     if (SetupDiGetDeviceRegistryPropertyW(device_info,
 396                                         &device_info_data,
 397                                         SPDRP_DRIVER,
 398                                         NULL,
 399                                         reinterpret_cast<PBYTE>(value),
 400                                         sizeof(value),
 401                                         NULL)) {
 402       HKEY key;
 403       std::wstring driver_key = L"System\\CurrentControlSet\\Control\\Class\\";
 404       driver_key += value;
 405       LONG result = RegOpenKeyExW(
 406           HKEY_LOCAL_MACHINE, driver_key.c_str(), 0, KEY_QUERY_VALUE, &key);
 407       if (result == ERROR_SUCCESS) {
 408         DWORD dwcb_data = sizeof(value);
 409         std::string driver_version;
 410         result = RegQueryValueExW(
 411             key, L"DriverVersion", NULL, NULL,
 412             reinterpret_cast<LPBYTE>(value), &dwcb_data);
 413         if (result == ERROR_SUCCESS)
 414           driver_version = base::UTF16ToASCII(std::wstring(value));
 415
 416         std::string driver_date;
 417         dwcb_data = sizeof(value);
 418         result = RegQueryValueExW(
 419             key, L"DriverDate", NULL, NULL,
 420             reinterpret_cast<LPBYTE>(value), &dwcb_data);
 421         if (result == ERROR_SUCCESS)
 422           driver_date = base::UTF16ToASCII(std::wstring(value));
 423
 424         std::string driver_vendor;
 425         dwcb_data = sizeof(value);
 426         result = RegQueryValueExW(
 427             key, L"ProviderName", NULL, NULL,
 428             reinterpret_cast<LPBYTE>(value), &dwcb_data);
 429         if (result == ERROR_SUCCESS) {
 430           driver_vendor = base::UTF16ToASCII(std::wstring(value));
 431           if (driver_vendor == "Advanced Micro Devices, Inc." ||
 432               driver_vendor == "ATI Technologies Inc.") {
 433             // We are conservative and assume that in the absence of a clear
 434             // signal the videocard is assumed to be switchable. Additionally,
 435             // some switchable systems with Intel GPUs aren't correctly
 436             // detected, so always count them.
 437             GetAMDVideocardInfo(gpu_info);
 438             if (!gpu_info->amd_switchable &&
 439                 gpu_info->gpu.vendor_id == 0x8086) {
 440               gpu_info->amd_switchable = true;
 441               gpu_info->secondary_gpus.push_back(gpu_info->gpu);
 442               gpu_info->gpu.vendor_id = 0x1002;
 443               gpu_info->gpu.device_id = 0;  // Unknown discrete AMD GPU.
 444             }
 445           }
 446         }
 447
 448         gpu_info->driver_vendor = driver_vendor;
 449         gpu_info->driver_version = driver_version;
 450         gpu_info->driver_date = driver_date;
 451         found = true;
 452         RegCloseKey(key);
 453         break;
 454       }
 455     }
 456   }
 457   SetupDiDestroyDeviceInfoList(device_info);
 458   return found;
 459 }
 460
 461 CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
 462   TRACE_EVENT0("gpu", "CollectGraphicsInfo");
 463
 464   DCHECK(gpu_info);
 465
 466   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL)) {
 467     std::string requested_implementation_name =
 468         CommandLine::ForCurrentProcess()->GetSwitchValueASCII(switches::kUseGL);
 469     if (requested_implementation_name == "swiftshader") {
 470       gpu_info->software_rendering = true;
 471       return kCollectInfoNonFatalFailure;
 472     }
 473   }
 474
 475   CollectInfoResult result = CollectGraphicsInfoGL(gpu_info);
 476   if (result != kCollectInfoSuccess)
 477     return result;
 478
 479   // ANGLE's renderer strings are of the form:
 480   // ANGLE (<adapter_identifier> Direct3D<version> vs_x_x ps_x_x)
 481   std::string direct3d_version;
 482   int vertex_shader_major_version = 0;
 483   int vertex_shader_minor_version = 0;
 484   int pixel_shader_major_version = 0;
 485   int pixel_shader_minor_version = 0;
 486   gpu_info->adapter_luid = 0;
 487   if (RE2::FullMatch(gpu_info->gl_renderer,
 488                      "ANGLE \\(.*\\)") &&
 489       RE2::PartialMatch(gpu_info->gl_renderer,
 490                         " Direct3D(\\w+)",
 491                         &direct3d_version) &&
 492       RE2::PartialMatch(gpu_info->gl_renderer,
 493                         " vs_(\\d+)_(\\d+)",
 494                         &vertex_shader_major_version,
 495                         &vertex_shader_minor_version) &&
 496       RE2::PartialMatch(gpu_info->gl_renderer,
 497                         " ps_(\\d+)_(\\d+)",
 498                         &pixel_shader_major_version,
 499                         &pixel_shader_minor_version)) {
 500     gpu_info->can_lose_context = direct3d_version == "9";
 501     gpu_info->vertex_shader_version =
 502         base::StringPrintf("%d.%d",
 503                            vertex_shader_major_version,
 504                            vertex_shader_minor_version);
 505     gpu_info->pixel_shader_version =
 506         base::StringPrintf("%d.%d",
 507                            pixel_shader_major_version,
 508                            pixel_shader_minor_version);
 509
 510     // ANGLE's EGL vendor strings are of the form:
 511     // Google, Inc. (adapter LUID: 0123456789ABCDEF)
 512     // The LUID is optional and identifies the GPU adapter ANGLE is using.
 513     const char* egl_vendor = eglQueryString(
 514         gfx::GLSurfaceEGL::GetHardwareDisplay(),
 515         EGL_VENDOR);
 516     RE2::PartialMatch(egl_vendor,
 517                       " \\(adapter LUID: ([0-9A-Fa-f]{16})\\)",
 518                       RE2::Hex(&gpu_info->adapter_luid));
 519
 520     // DirectX diagnostics are collected asynchronously because it takes a
 521     // couple of seconds. Do not mark gpu_info as complete until that is done.
 522     gpu_info->finalized = false;
 523   } else {
 524     gpu_info->finalized = true;
 525   }
 526
 527   return kCollectInfoSuccess;
 528 }
 529
 530 GpuIDResult CollectGpuID(uint32* vendor_id, uint32* device_id) {
 531   DCHECK(vendor_id && device_id);
 532   *vendor_id = 0;
 533   *device_id = 0;
 534
 535   // Taken from http://developer.nvidia.com/object/device_ids.html
 536   DISPLAY_DEVICE dd;
 537   dd.cb = sizeof(DISPLAY_DEVICE);
 538   std::wstring id;
 539   for (int i = 0; EnumDisplayDevices(NULL, i, &dd, 0); ++i) {
 540     if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
 541       id = dd.DeviceID;
 542       break;
 543     }
 544   }
 545
 546   if (id.length() > 20) {
 547     int vendor = 0, device = 0;
 548     std::wstring vendor_string = id.substr(8, 4);
 549     std::wstring device_string = id.substr(17, 4);
 550     base::HexStringToInt(base::UTF16ToASCII(vendor_string), &vendor);
 551     base::HexStringToInt(base::UTF16ToASCII(device_string), &device);
 552     *vendor_id = vendor;
 553     *device_id = device;
 554     if (*vendor_id != 0 && *device_id != 0)
 555       return kGpuIDSuccess;
 556   }
 557   return kGpuIDFailure;
 558 }
 559
 560 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
 561   TRACE_EVENT0("gpu", "CollectPreliminaryGraphicsInfo");
 562
 563   DCHECK(gpu_info);
 564
 565   gpu_info->performance_stats = RetrieveGpuPerformanceStatsWithHistograms();
 566
 567   // nvd3d9wrap.dll is loaded into all processes when Optimus is enabled.
 568   HMODULE nvd3d9wrap = GetModuleHandleW(L"nvd3d9wrap.dll");
 569   gpu_info->optimus = nvd3d9wrap != NULL;
 570
 571   gpu_info->lenovo_dcute = IsLenovoDCuteInstalled();
 572
 573   gpu_info->display_link_version = DisplayLinkVersion();
 574
 575   if (!gpu_info->display_link_version .IsValid()) {
 576     UMA_HISTOGRAM_ENUMERATION("GPU.DisplayLinkInstallationStatus",
 577                               DISPLAY_LINK_NOT_INSTALLED,
 578                               DISPLAY_LINK_INSTALLATION_STATUS_MAX);
 579   } else if (gpu_info->display_link_version.IsOlderThan("7.2")) {
 580     UMA_HISTOGRAM_ENUMERATION("GPU.DisplayLinkInstallationStatus",
 581                               DISPLAY_LINK_7_1_OR_EARLIER,
 582                               DISPLAY_LINK_INSTALLATION_STATUS_MAX);
 583   } else {
 584     UMA_HISTOGRAM_ENUMERATION("GPU.DisplayLinkInstallationStatus",
 585                               DISPLAY_LINK_7_2_OR_LATER,
 586                               DISPLAY_LINK_INSTALLATION_STATUS_MAX);
 587   }
 588
 589   // Taken from http://developer.nvidia.com/object/device_ids.html
 590   DISPLAY_DEVICE dd;
 591   dd.cb = sizeof(DISPLAY_DEVICE);
 592   std::wstring id;
 593   for (int i = 0; EnumDisplayDevices(NULL, i, &dd, 0); ++i) {
 594     if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
 595       id = dd.DeviceID;
 596       break;
 597     }
 598   }
 599
 600   if (id.length() <= 20)
 601     return kCollectInfoNonFatalFailure;
 602
 603   int vendor_id = 0, device_id = 0;
 604   base::string16 vendor_id_string = id.substr(8, 4);
 605   base::string16 device_id_string = id.substr(17, 4);
 606   base::HexStringToInt(base::UTF16ToASCII(vendor_id_string), &vendor_id);
 607   base::HexStringToInt(base::UTF16ToASCII(device_id_string), &device_id);
 608   gpu_info->gpu.vendor_id = vendor_id;
 609   gpu_info->gpu.device_id = device_id;
 610   // TODO(zmo): we only need to call CollectDriverInfoD3D() if we use ANGLE.
 611   if (!CollectDriverInfoD3D(id, gpu_info))
 612     return kCollectInfoNonFatalFailure;
 613
 614   // Collect basic information about supported D3D11 features. Delay for 45
 615   // seconds so as not to regress performance tests.
 616   if (D3D11ShouldWork(*gpu_info)) {
 617     // This is on a field trial so we can turn it off easily if it blows up
 618     // again in stable channel.
 619     scoped_refptr<base::FieldTrial> trial(
 620         base::FieldTrialList::FactoryGetFieldTrial(
 621             "D3D11Experiment", 100, "Disabled", 2015, 7, 8,
 622             base::FieldTrial::SESSION_RANDOMIZED, NULL));
 623     const int enabled_group =
 624         trial->AppendGroup("Enabled", 0);
 625
 626     if (trial->group() == enabled_group) {
 627       base::MessageLoop::current()->PostDelayedTask(
 628           FROM_HERE,
 629           base::Bind(&CollectD3D11Support),
 630           base::TimeDelta::FromSeconds(45));
 631     }
 632   }
 633
 634   return kCollectInfoSuccess;
 635 }
 636
 637 CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) {
 638   TRACE_EVENT0("gpu", "CollectDriverInfoGL");
 639
 640   if (!gpu_info->driver_version.empty())
 641     return kCollectInfoSuccess;
 642
 643   bool parsed = RE2::PartialMatch(
 644       gpu_info->gl_version, "([\\d\\.]+)$", &gpu_info->driver_version);
 645   return parsed ? kCollectInfoSuccess : kCollectInfoNonFatalFailure;
 646 }
 647
 648 void MergeGPUInfo(GPUInfo* basic_gpu_info,
 649                   const GPUInfo& context_gpu_info) {
 650   DCHECK(basic_gpu_info);
 651
 652   if (context_gpu_info.software_rendering) {
 653     basic_gpu_info->software_rendering = true;
 654     return;
 655   }
 656
 657   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 658
 659   basic_gpu_info->dx_diagnostics = context_gpu_info.dx_diagnostics;
 660 }
 661
 662 }  // namespace gpu