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// Copyright (c) 2010 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 <stdlib.h>
#if defined(OS_WIN)
#include <windows.h>
#endif
#include "app/win/scoped_com_initializer.h"
#include "base/environment.h"
#include "base/message_loop.h"
#include "base/stringprintf.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/env_vars.h"
#include "chrome/common/main_function_params.h"
#include "chrome/gpu/gpu_config.h"
#include "chrome/gpu/gpu_process.h"
#include "chrome/gpu/gpu_thread.h"
#if defined(USE_LINUX_BREAKPAD)
#include "chrome/app/breakpad_linux.h"
#endif
#if defined(OS_MACOSX)
#include "chrome/common/chrome_application_mac.h"
#endif
#if defined(USE_X11)
#include "gfx/gtk_util.h"
#endif
// Main function for starting the Gpu process.
int GpuMain(const MainFunctionParams& parameters) {
base::Time start_time = base::Time::Now();
#if defined(USE_LINUX_BREAKPAD)
// Needs to be called after we have chrome::DIR_USER_DATA.
InitCrashReporter();
#endif
const CommandLine& command_line = parameters.command_line_;
if (command_line.HasSwitch(switches::kGpuStartupDialog)) {
ChildProcess::WaitForDebugger(L"Gpu");
}
#if defined(OS_MACOSX)
chrome_application_mac::RegisterCrApp();
#endif
MessageLoop main_message_loop(MessageLoop::TYPE_UI);
base::PlatformThread::SetName("CrGpuMain");
#if defined(OS_WIN)
// Prevent Windows from displaying a modal dialog on failures like not being
// able to load a DLL.
SetErrorMode(
SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX);
#endif
app::win::ScopedCOMInitializer com_initializer;
#if defined(USE_X11)
// The X11 port of the command buffer code assumes it can access the X
// display via the macro GDK_DISPLAY(), which implies that Gtk has been
// initialized. This code was taken from PluginThread. TODO(kbr):
// rethink whether initializing Gtk is really necessary or whether we
// should just send a raw display connection down to the GPUProcessor.
g_thread_init(NULL);
gfx::GtkInitFromCommandLine(command_line);
#endif
// We can not tolerate early returns from this code, because the
// detection of early return of a child process is implemented using
// an IPC channel error. If the IPC channel is not fully set up
// between the browser and GPU process, and the GPU process crashes
// or exits early, the browser process will never detect it. For
// this reason we defer all work related to the GPU until receiving
// the GpuMsg_Initialize message from the browser.
GpuProcess gpu_process;
GpuThread* gpu_thread = new GpuThread;
gpu_thread->Init(start_time);
gpu_process.set_main_thread(gpu_thread);
main_message_loop.Run();
gpu_thread->StopWatchdog();
return 0;
}
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