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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "web_engine_context.h"
#include "base/bind.h"
#include "base/task/post_task.h"
#include "base/threading/platform_thread.h"
#include "base/threading/thread_restrictions.h"
#include "content/browser/gpu/gpu_main_thread_factory.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/utility_process_host.h"
#include "content/gpu/gpu_child_thread.h"
#include "content/gpu/gpu_process.h"
#include "content/gpu/in_process_gpu_thread.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/renderer/in_process_renderer_thread.h"
#include "content/utility/in_process_utility_thread.h"
#include "gpu/ipc/service/gpu_init.h"
#include <memory>
#include <QEventLoop>
namespace QtWebEngineCore {
struct GpuThreadControllerQt : content::GpuThreadController
{
GpuThreadControllerQt(const content::InProcessChildThreadParams ¶ms, const gpu::GpuPreferences &gpuPreferences)
{
base::PostTask(
FROM_HERE, { content::BrowserThread::UI },
base::BindOnce(&GpuThreadControllerQt::createGpuProcess, params, gpuPreferences));
}
~GpuThreadControllerQt() override
{
base::PostTask(
FROM_HERE, { content::BrowserThread::UI },
base::BindOnce(&GpuThreadControllerQt::destroyGpuProcess));
}
static void createGpuProcess(
const content::InProcessChildThreadParams ¶ms,
const gpu::GpuPreferences &gpuPreferences)
{
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (s_gpuProcessDestroyed)
return;
s_gpuProcess = std::make_unique<content::GpuProcess>(base::ThreadPriority::NORMAL);
auto gpuInit = std::make_unique<gpu::GpuInit>();
gpuInit->InitializeInProcess(base::CommandLine::ForCurrentProcess(), gpuPreferences);
auto childThread = new content::GpuChildThread(params, std::move(gpuInit));
childThread->Init(base::Time::Now());
s_gpuProcess->set_main_thread(childThread);
}
static void destroyGpuProcess()
{
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (s_gpuProcessDestroyed)
return;
// viz::GpuServiceImpl::~GpuServiceImpl waits for io task.
base::ScopedAllowBaseSyncPrimitivesForTesting allow;
s_gpuProcess.reset();
s_gpuProcessDestroyed = true;
}
static std::unique_ptr<content::GpuProcess> s_gpuProcess;
static bool s_gpuProcessDestroyed;
};
std::unique_ptr<content::GpuProcess> GpuThreadControllerQt::s_gpuProcess;
bool GpuThreadControllerQt::s_gpuProcessDestroyed = false;
static std::unique_ptr<content::GpuThreadController> createGpuThreadController(
const content::InProcessChildThreadParams ¶ms,
const gpu::GpuPreferences &gpuPreferences)
{
return std::make_unique<GpuThreadControllerQt>(params, gpuPreferences);
}
// static
void WebEngineContext::destroyGpuProcess()
{
GpuThreadControllerQt::destroyGpuProcess();
}
// static
void WebEngineContext::registerMainThreadFactories()
{
content::UtilityProcessHost::RegisterUtilityMainThreadFactory(content::CreateInProcessUtilityThread);
content::RenderProcessHostImpl::RegisterRendererMainThreadFactory(content::CreateInProcessRendererThread);
if (!isGpuServiceOnUIThread())
content::RegisterGpuMainThreadFactory(content::CreateInProcessGpuThread);
else
content::RegisterGpuMainThreadFactory(createGpuThreadController);
}
} // namespace QtWebEngineCore
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