gecko-dev/gfx/layers/PaintThread.h

63 строки
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 sts=2 ts=8 et tw=99 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_LAYERS_PAINTTHREAD_H
#define MOZILLA_LAYERS_PAINTTHREAD_H
#include "base/platform_thread.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/UniquePtr.h"
#include "nsThreadUtils.h"
namespace mozilla {
namespace gfx {
class DrawTarget;
class DrawTargetCapture;
};
namespace layers {
class CompositorBridgeChild;
class PaintThread final
{
friend void DestroyPaintThread(UniquePtr<PaintThread>&& aPaintThread);
public:
static void Start();
static void Shutdown();
static PaintThread* Get();
void PaintContents(gfx::DrawTargetCapture* aCapture,
gfx::DrawTarget* aTarget);
// Sync Runnables need threads to be ref counted,
// But this thread lives through the whole process.
// We're only temporarily using sync runnables so
// Override release/addref but don't do anything.
void Release();
void AddRef();
// Helper for asserts.
static bool IsOnPaintThread();
private:
bool Init();
void ShutdownOnPaintThread();
void InitOnPaintThread();
void PaintContentsAsync(CompositorBridgeChild* aBridge,
gfx::DrawTargetCapture* aCapture,
gfx::DrawTarget* aTarget);
static StaticAutoPtr<PaintThread> sSingleton;
static StaticRefPtr<nsIThread> sThread;
static PlatformThreadId sThreadId;
};
} // namespace layers
} // namespace mozilla
#endif