components/metrics/gpu/gpu_metrics_provider.cc

   1 // Copyright 2014 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 "components/metrics/gpu/gpu_metrics_provider.h"
   6
   7 #include "components/metrics/proto/system_profile.pb.h"
   8 #include "content/public/browser/gpu_data_manager.h"
   9 #include "gpu/config/gpu_info.h"
  10 #include "ui/gfx/screen.h"
  11
  12 namespace metrics {
  13
  14 #if defined(OS_WIN)
  15
  16 #include <windows.h>
  17
  18 namespace {
  19
  20 struct ScreenDPIInformation {
  21   double max_dpi_x;
  22   double max_dpi_y;
  23 };
  24
  25 // Called once for each connected monitor.
  26 BOOL CALLBACK GetMonitorDPICallback(HMONITOR, HDC hdc, LPRECT, LPARAM dwData) {
  27   const double kMillimetersPerInch = 25.4;
  28   ScreenDPIInformation* screen_info =
  29       reinterpret_cast<ScreenDPIInformation*>(dwData);
  30   // Size of screen, in mm.
  31   DWORD size_x = GetDeviceCaps(hdc, HORZSIZE);
  32   DWORD size_y = GetDeviceCaps(hdc, VERTSIZE);
  33   double dpi_x = (size_x > 0) ?
  34       GetDeviceCaps(hdc, HORZRES) / (size_x / kMillimetersPerInch) : 0;
  35   double dpi_y = (size_y > 0) ?
  36       GetDeviceCaps(hdc, VERTRES) / (size_y / kMillimetersPerInch) : 0;
  37   screen_info->max_dpi_x = std::max(dpi_x, screen_info->max_dpi_x);
  38   screen_info->max_dpi_y = std::max(dpi_y, screen_info->max_dpi_y);
  39   return TRUE;
  40 }
  41
  42 void WriteScreenDPIInformationProto(SystemProfileProto::Hardware* hardware) {
  43   HDC desktop_dc = GetDC(NULL);
  44   if (desktop_dc) {
  45     ScreenDPIInformation si = {0, 0};
  46     if (EnumDisplayMonitors(desktop_dc, NULL, GetMonitorDPICallback,
  47             reinterpret_cast<LPARAM>(&si))) {
  48       hardware->set_max_dpi_x(si.max_dpi_x);
  49       hardware->set_max_dpi_y(si.max_dpi_y);
  50     }
  51     ReleaseDC(GetDesktopWindow(), desktop_dc);
  52   }
  53 }
  54
  55 }  // namespace
  56
  57 #endif  // defined(OS_WIN)
  58
  59 GPUMetricsProvider::GPUMetricsProvider() {
  60 }
  61
  62 GPUMetricsProvider::~GPUMetricsProvider() {
  63 }
  64
  65 void GPUMetricsProvider::ProvideSystemProfileMetrics(
  66     SystemProfileProto* system_profile_proto) {
  67   SystemProfileProto::Hardware* hardware =
  68       system_profile_proto->mutable_hardware();
  69
  70   const gpu::GPUInfo& gpu_info =
  71       content::GpuDataManager::GetInstance()->GetGPUInfo();
  72   SystemProfileProto::Hardware::Graphics* gpu =
  73       hardware->mutable_gpu();
  74   gpu->set_vendor_id(gpu_info.gpu.vendor_id);
  75   gpu->set_device_id(gpu_info.gpu.device_id);
  76   gpu->set_driver_version(gpu_info.driver_version);
  77   gpu->set_driver_date(gpu_info.driver_date);
  78   gpu->set_gl_vendor(gpu_info.gl_vendor);
  79   gpu->set_gl_renderer(gpu_info.gl_renderer);
  80
  81   const gfx::Size display_size = GetScreenSize();
  82   hardware->set_primary_screen_width(display_size.width());
  83   hardware->set_primary_screen_height(display_size.height());
  84   hardware->set_primary_screen_scale_factor(GetScreenDeviceScaleFactor());
  85   hardware->set_screen_count(GetScreenCount());
  86
  87 #if defined(OS_WIN)
  88   WriteScreenDPIInformationProto(hardware);
  89 #endif
  90 }
  91
  92 gfx::Size GPUMetricsProvider::GetScreenSize() const {
  93   return gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().GetSizeInPixel();
  94 }
  95
  96 float GPUMetricsProvider::GetScreenDeviceScaleFactor() const {
  97   return gfx::Screen::GetNativeScreen()->
  98       GetPrimaryDisplay().device_scale_factor();
  99 }
 100
 101 int GPUMetricsProvider::GetScreenCount() const {
 102   // TODO(scottmg): NativeScreen maybe wrong. http://crbug.com/133312
 103   return gfx::Screen::GetNativeScreen()->GetNumDisplays();
 104 }
 105
 106 }  // namespace metrics