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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/gpu/chrome_browser_main_extra_parts_gpu.h"
#include "base/check.h"
#include "chrome/browser/metrics/chrome_metrics_service_accessor.h"
#include "content/public/browser/gpu_data_manager.h"
#include "gpu/config/gpu_info.h"
#include "gpu/config/gpu_preferences.h"
namespace {
const char kTrialName[] = "SkiaBackend";
// Synthetic trial group names. Groups added here should be added to finch
// service side as well.
const char kGroupNone[] = "None";
const char kGroupGaneshGL[] = "GL";
const char kGroupGaneshVulkan[] = "Vulkan";
const char kGroupGraphiteDawnVulkan[] = "GraphiteDawnVulkan";
const char kGroupGraphiteDawnMetal[] = "GraphiteDawnMetal";
const char kGroupGraphiteDawnD3D11[] = "GraphiteDawnD3D11";
const char kGroupGraphiteDawnD3D12[] = "GraphiteDawnD3D12";
const char kGroupGraphiteMetal[] = "GraphiteMetal";
} // namespace
ChromeBrowserMainExtraPartsGpu::ChromeBrowserMainExtraPartsGpu() = default;
ChromeBrowserMainExtraPartsGpu::~ChromeBrowserMainExtraPartsGpu() {
content::GpuDataManager::GetInstance()->RemoveObserver(this);
}
void ChromeBrowserMainExtraPartsGpu::PreCreateThreads() {
// This should be the first time to get an instance of GpuDataManager.
// This is where it's initialized.
// 1) Need to initialize in-process GpuDataManager before creating threads.
// It's unsafe to append the gpu command line switches to the global
// CommandLine::ForCurrentProcess object after threads are created.
// 2) Must be after other parts' PreCreateThreads to pick up chrome://flags.
DCHECK(!content::GpuDataManager::Initialized());
content::GpuDataManager* manager = content::GpuDataManager::GetInstance();
manager->AddObserver(this);
}
void ChromeBrowserMainExtraPartsGpu::OnGpuInfoUpdate() {
const auto* backend_name = GetSkiaBackendName();
if (backend_name) {
ChromeMetricsServiceAccessor::RegisterSyntheticFieldTrial(kTrialName,
backend_name);
}
}
const char* ChromeBrowserMainExtraPartsGpu::GetSkiaBackendName() const {
auto* manager = content::GpuDataManager::GetInstance();
if (!manager->IsEssentialGpuInfoAvailable()) {
return nullptr;
}
switch (manager->GetGPUInfo().skia_backend_type) {
case gpu::SkiaBackendType::kNone:
return kGroupNone;
case gpu::SkiaBackendType::kGaneshGL:
return kGroupGaneshGL;
case gpu::SkiaBackendType::kGaneshVulkan:
return kGroupGaneshVulkan;
case gpu::SkiaBackendType::kGraphiteDawnVulkan:
return kGroupGraphiteDawnVulkan;
case gpu::SkiaBackendType::kGraphiteDawnMetal:
return kGroupGraphiteDawnMetal;
case gpu::SkiaBackendType::kGraphiteDawnD3D11:
return kGroupGraphiteDawnD3D11;
case gpu::SkiaBackendType::kGraphiteDawnD3D12:
return kGroupGraphiteDawnD3D12;
case gpu::SkiaBackendType::kGraphiteMetal:
return kGroupGraphiteMetal;
case gpu::SkiaBackendType::kUnknown:
return nullptr;
}
}
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