chromium/content/gpu/gpu_main.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>
#include <stdlib.h>

#include <memory>
#include <tuple>
#include <utility>

#include "base/allocator/partition_alloc_support.h"
#include "base/check.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/message_loop/message_pump_type.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/clamped_math.h"
#include "base/process/current_process.h"
#include "base/process/process_metrics.h"
#include "base/rand_util.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/system/sys_info.h"
#include "base/task/current_thread.h"
#include "base/task/single_thread_task_executor.h"
#include "base/task/thread_pool/thread_pool_instance.h"
#include "base/threading/platform_thread.h"
#include "base/time/time.h"
#include "base/timer/hi_res_timer_manager.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "components/viz/service/main/viz_main_impl.h"
#include "content/child/child_process.h"
#include "content/common/content_constants_internal.h"
#include "content/common/content_switches_internal.h"
#include "content/common/features.h"
#include "content/common/skia_utils.h"
#include "content/gpu/gpu_child_thread.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/main_function_params.h"
#include "content/public/common/result_codes.h"
#include "content/public/gpu/content_gpu_client.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/config/gpu_driver_bug_list.h"
#include "gpu/config/gpu_finch_features.h"
#include "gpu/config/gpu_info_collector.h"
#include "gpu/config/gpu_preferences.h"
#include "gpu/config/gpu_switches.h"
#include "gpu/config/gpu_util.h"
#include "gpu/ipc/common/gpu_memory_buffer_support.h"
#include "gpu/ipc/service/gpu_config.h"
#include "gpu/ipc/service/gpu_init.h"
#include "gpu/ipc/service/gpu_watchdog_thread.h"
#include "media/gpu/buildflags.h"
#include "mojo/public/cpp/bindings/interface_endpoint_client.h"
#include "mojo/public/cpp/bindings/sync_call_restrictions.h"
#include "services/tracing/public/cpp/trace_startup.h"
#include "third_party/angle/src/gpu_info_util/SystemInfo.h"
#include "ui/base/ui_base_features.h"
#include "ui/events/platform/platform_event_source.h"
#include "ui/gfx/switches.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_features.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/gl_switches.h"
#include "ui/gl/gpu_switching_manager.h"
#include "ui/gl/init/gl_factory.h"

#if BUILDFLAG(IS_WIN)
#include <windows.h>

#include <dwmapi.h>
#endif

#if BUILDFLAG(IS_ANDROID)
#include "base/android/meminfo_dump_provider.h"
#include "base/trace_event/memory_dump_manager.h"
#include "components/tracing/common/graphics_memory_dump_provider_android.h"
#endif

#if BUILDFLAG(IS_WIN)
#include "base/trace_event/trace_event_etw_export_win.h"
#include "base/win/scoped_com_initializer.h"
#include "base/win/win_util.h"
#include "base/win/windows_version.h"
#include "media/base/win/mf_initializer.h"
#include "sandbox/policy/win/sandbox_warmup.h"
#include "sandbox/win/src/sandbox.h"
#endif

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#include "content/child/sandboxed_process_thread_type_handler.h"
#include "content/common/gpu_pre_sandbox_hook_linux.h"
#include "sandbox/policy/linux/sandbox_linux.h"
#include "sandbox/policy/sandbox_type.h"
#endif

#if BUILDFLAG(IS_MAC)
#include "base/message_loop/message_pump_apple.h"
#include "components/metal_util/device_removal.h"
#include "gpu/ipc/service/built_in_shader_cache_loader.h"
#include "sandbox/mac/seatbelt.h"
#endif

#if BUILDFLAG(USE_VAAPI)
#include "media/gpu/vaapi/vaapi_wrapper.h"
#endif

namespace content {

namespace {

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
bool StartSandboxLinux(gpu::GpuWatchdogThread*,
                       const gpu::GPUInfo*,
                       const gpu::GpuPreferences&);
#elif BUILDFLAG(IS_WIN)
bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo*);
#endif

class ContentSandboxHelper : public gpu::GpuSandboxHelper { … };

void LoadMetalShaderCacheIfNecessary() { … }

}  // namespace

// Main function for starting the Gpu process.
int GpuMain(MainFunctionParams parameters) { … }

namespace {

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
bool StartSandboxLinux(gpu::GpuWatchdogThread* watchdog_thread,
                       const gpu::GPUInfo* gpu_info,
                       const gpu::GpuPreferences& gpu_prefs) { … }
#endif  // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)

#if BUILDFLAG(IS_WIN)
bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo* sandbox_info) {
  TRACE_EVENT0("gpu,startup", "Lower token");

  // For Windows, if the target_services interface is not zero, the process
  // is sandboxed and we must call LowerToken() before rendering untrusted
  // content.
  sandbox::TargetServices* target_services = sandbox_info->target_services;
  if (target_services) {
    target_services->LowerToken();
    return true;
  }

  return false;
}
#endif  // BUILDFLAG(IS_WIN)

}  // namespace.

}  // namespace content