src/gpu/config/gpu_info_collector_mac.mm

   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 #include <vector>
   8
   9 #include "base/debug/trace_event.h"
  10 #include "base/logging.h"
  11 #include "base/mac/mac_util.h"
  12 #include "base/mac/scoped_cftyperef.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/strings/string_number_conversions.h"
  15 #include "base/strings/string_piece.h"
  16 #include "base/strings/string_util.h"
  17 #include "base/strings/sys_string_conversions.h"
  18 #include "ui/gl/gl_bindings.h"
  19 #include "ui/gl/gl_context.h"
  20 #include "ui/gl/gl_implementation.h"
  21
  22 #import <Cocoa/Cocoa.h>
  23 #import <Foundation/Foundation.h>
  24 #import <IOKit/IOKitLib.h>
  25
  26 namespace gpu {
  27
  28 namespace {
  29
  30 const UInt32 kVendorIDIntel = 0x8086;
  31 const UInt32 kVendorIDNVidia = 0x10de;
  32 const UInt32 kVendorIDAMD = 0x1002;
  33
  34 // Return 0 if we couldn't find the property.
  35 // The property values we use should not be 0, so it's OK to use 0 as failure.
  36 UInt32 GetEntryProperty(io_registry_entry_t entry, CFStringRef property_name) {
  37   base::ScopedCFTypeRef<CFDataRef> data_ref(
  38       static_cast<CFDataRef>(IORegistryEntrySearchCFProperty(
  39           entry,
  40           kIOServicePlane,
  41           property_name,
  42           kCFAllocatorDefault,
  43           kIORegistryIterateRecursively | kIORegistryIterateParents)));
  44   if (!data_ref)
  45     return 0;
  46
  47   UInt32 value = 0;
  48   const UInt32* value_pointer =
  49       reinterpret_cast<const UInt32*>(CFDataGetBytePtr(data_ref));
  50   if (value_pointer != NULL)
  51     value = *value_pointer;
  52   return value;
  53 }
  54
  55 // Find the info of the current GPU.
  56 GPUInfo::GPUDevice GetActiveGPU() {
  57   GPUInfo::GPUDevice gpu;
  58   io_registry_entry_t dsp_port = CGDisplayIOServicePort(kCGDirectMainDisplay);
  59   gpu.vendor_id = GetEntryProperty(dsp_port, CFSTR("vendor-id"));
  60   gpu.device_id = GetEntryProperty(dsp_port, CFSTR("device-id"));
  61   return gpu;
  62 }
  63
  64 // Scan IO registry for PCI video cards.
  65 bool CollectPCIVideoCardInfo(GPUInfo* gpu_info) {
  66   DCHECK(gpu_info);
  67   GPUInfo::GPUDevice active_gpu = GetActiveGPU();
  68
  69   // Collect all GPUs' info.
  70   // match_dictionary will be consumed by IOServiceGetMatchingServices, no need
  71   // to release it.
  72   CFMutableDictionaryRef match_dictionary = IOServiceMatching("IOPCIDevice");
  73   io_iterator_t entry_iterator;
  74   std::vector<GPUInfo::GPUDevice> gpu_list;
  75   if (IOServiceGetMatchingServices(kIOMasterPortDefault,
  76                                    match_dictionary,
  77                                    &entry_iterator) == kIOReturnSuccess) {
  78     io_registry_entry_t entry;
  79     while ((entry = IOIteratorNext(entry_iterator))) {
  80       GPUInfo::GPUDevice gpu;
  81       if (GetEntryProperty(entry, CFSTR("class-code")) != 0x30000) {
  82         // 0x30000 : DISPLAY_VGA
  83         continue;
  84       }
  85       gpu.vendor_id = GetEntryProperty(entry, CFSTR("vendor-id"));
  86       gpu.device_id = GetEntryProperty(entry, CFSTR("device-id"));
  87       if (gpu.vendor_id && gpu.device_id) {
  88         if (gpu.vendor_id == active_gpu.vendor_id &&
  89             gpu.device_id == active_gpu.device_id) {
  90           gpu.active = true;
  91         }
  92         gpu_list.push_back(gpu);
  93       }
  94     }
  95     IOObjectRelease(entry_iterator);
  96   }
  97
  98   switch (gpu_list.size()) {
  99     case 0:
 100       return false;
 101     case 1:
 102       gpu_info->gpu = gpu_list[0];
 103       break;
 104     case 2:
 105       {
 106         int integrated = -1;
 107         int discrete = -1;
 108         if (gpu_list[0].vendor_id == kVendorIDIntel)
 109           integrated = 0;
 110         else if (gpu_list[1].vendor_id == kVendorIDIntel)
 111           integrated = 1;
 112         if (integrated >= 0) {
 113           switch (gpu_list[1 - integrated].vendor_id) {
 114             case kVendorIDAMD:
 115               gpu_info->amd_switchable = true;
 116               discrete = 1 - integrated;
 117               break;
 118             case kVendorIDNVidia:
 119               gpu_info->optimus = true;
 120               discrete = 1 - integrated;
 121               break;
 122             default:
 123               break;
 124           }
 125         }
 126         if (integrated >= 0 && discrete >= 0) {
 127           // We always put discrete GPU as primary for blacklisting purpose.
 128           gpu_info->gpu = gpu_list[discrete];
 129           gpu_info->secondary_gpus.push_back(gpu_list[integrated]);
 130           break;
 131         }
 132         // If it's not optimus or amd_switchable, we put the current GPU as
 133         // primary.  Fall through to default.
 134       }
 135     default:
 136       {
 137         size_t current = gpu_list.size();
 138         for (size_t i = 0; i < gpu_list.size(); ++i) {
 139           if (gpu_list[i].active) {
 140             current = i;
 141             break;
 142           }
 143         }
 144         if (current == gpu_list.size()) {
 145           // If we fail to identify the current GPU, select any one as primary.
 146           current = 0;
 147         }
 148         for (size_t i = 0; i < gpu_list.size(); ++i) {
 149           if (i == current)
 150             gpu_info->gpu = gpu_list[i];
 151           else
 152             gpu_info->secondary_gpus.push_back(gpu_list[i]);
 153         }
 154       }
 155       break;
 156   }
 157   return (gpu_info->gpu.vendor_id && gpu_info->gpu.device_id);
 158 }
 159
 160 }  // namespace anonymous
 161
 162 CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
 163   DCHECK(gpu_info);
 164
 165   TRACE_EVENT0("gpu", "gpu_info_collector::CollectGraphicsInfo");
 166
 167   gpu_info->can_lose_context =
 168       (gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2);
 169   gpu_info->finalized = true;
 170   return CollectGraphicsInfoGL(gpu_info);
 171 }
 172
 173 GpuIDResult CollectGpuID(uint32* vendor_id, uint32* device_id) {
 174   DCHECK(vendor_id && device_id);
 175
 176   GPUInfo::GPUDevice gpu = GetActiveGPU();
 177   *vendor_id = gpu.vendor_id;
 178   *device_id = gpu.device_id;
 179
 180   if (*vendor_id != 0 && *device_id != 0)
 181     return kGpuIDSuccess;
 182   return kGpuIDFailure;
 183 }
 184
 185 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
 186   DCHECK(gpu_info);
 187
 188   int32 model_major = 0, model_minor = 0;
 189   base::mac::ParseModelIdentifier(base::mac::GetModelIdentifier(),
 190                                   &gpu_info->machine_model_name,
 191                                   &model_major, &model_minor);
 192   gpu_info->machine_model_version =
 193       base::IntToString(model_major) + "." + base::IntToString(model_minor);
 194
 195   bool result = CollectPCIVideoCardInfo(gpu_info);
 196   return result ? kCollectInfoSuccess : kCollectInfoNonFatalFailure;
 197 }
 198
 199 CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) {
 200   DCHECK(gpu_info);
 201
 202   // Extract the OpenGL driver version string from the GL_VERSION string.
 203   // Mac OpenGL drivers have the driver version
 204   // at the end of the gl version string preceded by a dash.
 205   // Use some jiggery-pokery to turn that utf8 string into a std::wstring.
 206   size_t pos = gpu_info->gl_version.find_last_of('-');
 207   if (pos == std::string::npos)
 208     return kCollectInfoNonFatalFailure;
 209   gpu_info->driver_version = gpu_info->gl_version.substr(pos + 1);
 210   return kCollectInfoSuccess;
 211 }
 212
 213 void MergeGPUInfo(GPUInfo* basic_gpu_info,
 214                   const GPUInfo& context_gpu_info) {
 215   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 216 }
 217
 218 }  // namespace gpu