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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_util.h"
#include <memory>
#include <vector>
#include "base/command_line.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/sys_info.h"
#include "gpu/config/gpu_blacklist.h"
#include "gpu/config/gpu_control_list_jsons.h"
#include "gpu/config/gpu_driver_bug_list.h"
#include "gpu/config/gpu_feature_type.h"
#include "gpu/config/gpu_finch_features.h"
#include "gpu/config/gpu_info_collector.h"
#include "gpu/config/gpu_switches.h"
#include "ui/gl/gl_switches.h"
#include "ui/gl/gpu_switching_manager.h"
namespace gpu {
namespace {
// Combine the integers into a string, seperated by ','.
std::string IntSetToString(const std::set<int>& list) {
std::string rt;
for (std::set<int>::const_iterator it = list.begin();
it != list.end(); ++it) {
if (!rt.empty())
rt += ",";
rt += base::IntToString(*it);
}
return rt;
}
void StringToIntSet(const std::string& str, std::set<int>* list) {
DCHECK(list);
for (const base::StringPiece& piece :
base::SplitStringPiece(str, ",", base::TRIM_WHITESPACE,
base::SPLIT_WANT_ALL)) {
int number = 0;
bool succeed = base::StringToInt(piece, &number);
DCHECK(succeed);
list->insert(number);
}
}
// |str| is in the format of "0x040a;0x10de;...;hex32_N".
void StringToIds(const std::string& str, std::vector<uint32_t>* list) {
DCHECK(list);
for (const base::StringPiece& piece : base::SplitStringPiece(
str, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
uint32_t id = 0;
bool succeed = base::HexStringToUInt(piece, &id);
DCHECK(succeed);
list->push_back(id);
}
}
GpuFeatureStatus GetGpuRasterizationFeatureStatus(
const std::set<int>& blacklisted_features,
const base::CommandLine& command_line) {
if (command_line.HasSwitch(switches::kDisableGpuRasterization))
return kGpuFeatureStatusDisabled;
else if (command_line.HasSwitch(switches::kEnableGpuRasterization))
return kGpuFeatureStatusEnabled;
if (blacklisted_features.count(GPU_FEATURE_TYPE_GPU_RASTERIZATION))
return kGpuFeatureStatusBlacklisted;
#if defined(OS_ANDROID)
// We can't use GPU rasterization on low-end devices, because the Ganesh
// cache would consume too much memory.
if (base::SysInfo::IsLowEndDevice())
return kGpuFeatureStatusBlacklisted;
#endif // defined(OS_ANDROID)
// Gpu Rasterization on platforms that are not fully enabled is controlled by
// a finch experiment.
if (!base::FeatureList::IsEnabled(features::kDefaultEnableGpuRasterization))
return kGpuFeatureStatusDisabled;
return kGpuFeatureStatusEnabled;
}
} // namespace anonymous
void ApplyGpuDriverBugWorkarounds(const GPUInfo& gpu_info,
base::CommandLine* command_line) {
std::unique_ptr<GpuDriverBugList> list(GpuDriverBugList::Create());
list->LoadList(kGpuDriverBugListJson,
GpuControlList::kCurrentOsOnly);
std::set<int> workarounds = list->MakeDecision(
GpuControlList::kOsAny, std::string(), gpu_info);
GpuDriverBugList::AppendWorkaroundsFromCommandLine(
&workarounds, *command_line);
if (!workarounds.empty()) {
command_line->AppendSwitchASCII(switches::kGpuDriverBugWorkarounds,
IntSetToString(workarounds));
}
std::set<std::string> disabled_extensions;
std::vector<std::string> buglist_disabled_extensions =
list->GetDisabledExtensions();
disabled_extensions.insert(buglist_disabled_extensions.begin(),
buglist_disabled_extensions.end());
if (command_line->HasSwitch(switches::kDisableGLExtensions)) {
std::vector<std::string> existing_disabled_extensions = base::SplitString(
command_line->GetSwitchValueASCII(switches::kDisableGLExtensions), " ",
base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
disabled_extensions.insert(existing_disabled_extensions.begin(),
existing_disabled_extensions.end());
}
if (!disabled_extensions.empty()) {
std::vector<std::string> v(disabled_extensions.begin(),
disabled_extensions.end());
command_line->AppendSwitchASCII(switches::kDisableGLExtensions,
base::JoinString(v, " "));
}
}
void StringToFeatureSet(
const std::string& str, std::set<int>* feature_set) {
StringToIntSet(str, feature_set);
}
void ParseSecondaryGpuDevicesFromCommandLine(
const base::CommandLine& command_line,
GPUInfo* gpu_info) {
DCHECK(gpu_info);
const char* secondary_vendor_switch_key = switches::kGpuSecondaryVendorIDs;
const char* secondary_device_switch_key = switches::kGpuSecondaryDeviceIDs;
if (command_line.HasSwitch(switches::kGpuTestingSecondaryVendorIDs) &&
command_line.HasSwitch(switches::kGpuTestingSecondaryDeviceIDs)) {
secondary_vendor_switch_key = switches::kGpuTestingSecondaryVendorIDs;
secondary_device_switch_key = switches::kGpuTestingSecondaryDeviceIDs;
}
if (!command_line.HasSwitch(secondary_vendor_switch_key) ||
!command_line.HasSwitch(secondary_device_switch_key)) {
return;
}
std::vector<uint32_t> vendor_ids;
std::vector<uint32_t> device_ids;
StringToIds(command_line.GetSwitchValueASCII(secondary_vendor_switch_key),
&vendor_ids);
StringToIds(command_line.GetSwitchValueASCII(secondary_device_switch_key),
&device_ids);
DCHECK(vendor_ids.size() == device_ids.size());
gpu_info->secondary_gpus.clear();
for (size_t i = 0; i < vendor_ids.size() && i < device_ids.size(); ++i) {
gpu::GPUInfo::GPUDevice secondary_device;
secondary_device.active = false;
secondary_device.vendor_id = vendor_ids[i];
secondary_device.device_id = device_ids[i];
gpu_info->secondary_gpus.push_back(secondary_device);
}
}
void InitializeDualGpusIfSupported(
const std::set<int>& driver_bug_workarounds) {
ui::GpuSwitchingManager* switching_manager =
ui::GpuSwitchingManager::GetInstance();
if (!switching_manager->SupportsDualGpus())
return;
if (driver_bug_workarounds.count(gpu::FORCE_DISCRETE_GPU) == 1)
ui::GpuSwitchingManager::GetInstance()->ForceUseOfDiscreteGpu();
else if (driver_bug_workarounds.count(gpu::FORCE_INTEGRATED_GPU) == 1)
ui::GpuSwitchingManager::GetInstance()->ForceUseOfIntegratedGpu();
}
GpuFeatureInfo GetGpuFeatureInfo(const GPUInfo& gpu_info,
const base::CommandLine& command_line) {
GpuFeatureInfo gpu_feature_info;
std::set<int> blacklisted_features;
if (!command_line.HasSwitch(switches::kIgnoreGpuBlacklist)) {
std::unique_ptr<GpuBlacklist> list(GpuBlacklist::Create());
list->LoadList(kSoftwareRenderingListJson, GpuControlList::kCurrentOsOnly);
blacklisted_features =
list->MakeDecision(GpuControlList::kOsAny, std::string(), gpu_info);
}
// Currently only used for GPU rasterization.
gpu_feature_info.status_values[GPU_FEATURE_TYPE_GPU_RASTERIZATION] =
GetGpuRasterizationFeatureStatus(blacklisted_features, command_line);
return gpu_feature_info;
}
} // namespace gpu
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