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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/config/gpu_info_collector.h"
#include <vector>
#include "base/logging.h"
#include "base/mac/mac_util.h"
#include "base/mac/scoped_cftyperef.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "base/strings/string_util.h"
#include "base/strings/sys_string_conversions.h"
#include "base/trace_event/trace_event.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_implementation.h"
#import <Cocoa/Cocoa.h>
#import <Foundation/Foundation.h>
#import <IOKit/IOKitLib.h>
namespace gpu {
namespace {
const UInt32 kVendorIDIntel = 0x8086;
const UInt32 kVendorIDNVidia = 0x10de;
const UInt32 kVendorIDAMD = 0x1002;
// Return 0 if we couldn't find the property.
// The property values we use should not be 0, so it's OK to use 0 as failure.
UInt32 GetEntryProperty(io_registry_entry_t entry, CFStringRef property_name) {
base::ScopedCFTypeRef<CFDataRef> data_ref(
static_cast<CFDataRef>(IORegistryEntrySearchCFProperty(
entry,
kIOServicePlane,
property_name,
kCFAllocatorDefault,
kIORegistryIterateRecursively | kIORegistryIterateParents)));
if (!data_ref)
return 0;
UInt32 value = 0;
const UInt32* value_pointer =
reinterpret_cast<const UInt32*>(CFDataGetBytePtr(data_ref));
if (value_pointer != NULL)
value = *value_pointer;
return value;
}
// Find the info of the current GPU.
GPUInfo::GPUDevice GetActiveGPU() {
GPUInfo::GPUDevice gpu;
io_registry_entry_t dsp_port = CGDisplayIOServicePort(kCGDirectMainDisplay);
gpu.vendor_id = GetEntryProperty(dsp_port, CFSTR("vendor-id"));
gpu.device_id = GetEntryProperty(dsp_port, CFSTR("device-id"));
return gpu;
}
// Scan IO registry for PCI video cards.
CollectInfoResult CollectPCIVideoCardInfo(GPUInfo* gpu_info) {
DCHECK(gpu_info);
GPUInfo::GPUDevice active_gpu = GetActiveGPU();
// Collect all GPUs' info.
// match_dictionary will be consumed by IOServiceGetMatchingServices, no need
// to release it.
CFMutableDictionaryRef match_dictionary = IOServiceMatching("IOPCIDevice");
io_iterator_t entry_iterator;
std::vector<GPUInfo::GPUDevice> gpu_list;
if (IOServiceGetMatchingServices(kIOMasterPortDefault,
match_dictionary,
&entry_iterator) == kIOReturnSuccess) {
io_registry_entry_t entry;
while ((entry = IOIteratorNext(entry_iterator))) {
GPUInfo::GPUDevice gpu;
if (GetEntryProperty(entry, CFSTR("class-code")) != 0x30000) {
// 0x30000 : DISPLAY_VGA
continue;
}
gpu.vendor_id = GetEntryProperty(entry, CFSTR("vendor-id"));
gpu.device_id = GetEntryProperty(entry, CFSTR("device-id"));
if (gpu.vendor_id && gpu.device_id) {
if (gpu.vendor_id == active_gpu.vendor_id &&
gpu.device_id == active_gpu.device_id) {
gpu.active = true;
}
gpu_list.push_back(gpu);
}
}
IOObjectRelease(entry_iterator);
}
switch (gpu_list.size()) {
case 0:
return kCollectInfoNonFatalFailure;
case 1:
gpu_info->gpu = gpu_list[0];
break;
case 2:
{
int integrated = -1;
int discrete = -1;
if (gpu_list[0].vendor_id == kVendorIDIntel)
integrated = 0;
else if (gpu_list[1].vendor_id == kVendorIDIntel)
integrated = 1;
if (integrated >= 0) {
switch (gpu_list[1 - integrated].vendor_id) {
case kVendorIDAMD:
gpu_info->amd_switchable = true;
discrete = 1 - integrated;
break;
case kVendorIDNVidia:
gpu_info->optimus = true;
discrete = 1 - integrated;
break;
default:
break;
}
}
if (integrated >= 0 && discrete >= 0) {
// We always put discrete GPU as primary for blacklisting purpose.
gpu_info->gpu = gpu_list[discrete];
gpu_info->secondary_gpus.push_back(gpu_list[integrated]);
break;
}
// If it's not optimus or amd_switchable, we put the current GPU as
// primary. Fall through to default.
}
default:
{
size_t current = gpu_list.size();
for (size_t i = 0; i < gpu_list.size(); ++i) {
if (gpu_list[i].active) {
current = i;
break;
}
}
if (current == gpu_list.size()) {
// If we fail to identify the current GPU, select any one as primary.
current = 0;
}
for (size_t i = 0; i < gpu_list.size(); ++i) {
if (i == current)
gpu_info->gpu = gpu_list[i];
else
gpu_info->secondary_gpus.push_back(gpu_list[i]);
}
}
break;
}
if (gpu_info->gpu.vendor_id == 0 || gpu_info->gpu.device_id == 0)
return kCollectInfoNonFatalFailure;
return kCollectInfoSuccess;
}
} // namespace anonymous
CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
DCHECK(gpu_info);
TRACE_EVENT0("gpu", "gpu_info_collector::CollectGraphicsInfo");
gpu_info->can_lose_context =
(gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2);
CollectInfoResult result = CollectGraphicsInfoGL(gpu_info);
gpu_info->context_info_state = result;
return result;
}
CollectInfoResult CollectGpuID(uint32* vendor_id, uint32* device_id) {
DCHECK(vendor_id && device_id);
GPUInfo::GPUDevice gpu = GetActiveGPU();
*vendor_id = gpu.vendor_id;
*device_id = gpu.device_id;
if (*vendor_id != 0 && *device_id != 0)
return kCollectInfoSuccess;
return kCollectInfoNonFatalFailure;
}
CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
DCHECK(gpu_info);
int32 model_major = 0, model_minor = 0;
base::mac::ParseModelIdentifier(base::mac::GetModelIdentifier(),
&gpu_info->machine_model_name,
&model_major, &model_minor);
gpu_info->machine_model_version =
base::IntToString(model_major) + "." + base::IntToString(model_minor);
CollectInfoResult result = CollectPCIVideoCardInfo(gpu_info);
gpu_info->basic_info_state = result;
return result;
}
CollectInfoResult CollectDriverInfoGL(GPUInfo* gpu_info) {
DCHECK(gpu_info);
// Extract the OpenGL driver version string from the GL_VERSION string.
// Mac OpenGL drivers have the driver version
// at the end of the gl version string preceded by a dash.
// Use some jiggery-pokery to turn that utf8 string into a std::wstring.
size_t pos = gpu_info->gl_version.find_last_of('-');
if (pos == std::string::npos)
return kCollectInfoNonFatalFailure;
gpu_info->driver_version = gpu_info->gl_version.substr(pos + 1);
return kCollectInfoSuccess;
}
void MergeGPUInfo(GPUInfo* basic_gpu_info,
const GPUInfo& context_gpu_info) {
MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
}
} // namespace gpu