mirror of
https://github.com/mozilla-firefox/firefox
synced 2026-08-12 12:35:33 +00:00
Sylvestre Ledru
e1fe74e9e3
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287846
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _include_gfx_ipc_CanvasRenderThread_h_
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#define _include_gfx_ipc_CanvasRenderThread_h_
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/Mutex.h"
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#include "nsCOMPtr.h"
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#include "nsISupportsImpl.h"
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#include "nsTArray.h"
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class nsIRunnable;
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class nsIThread;
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namespace mozilla {
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namespace gfx {
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/**
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* This class represents the virtual thread for canvas rendering. Depending on
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* platform requirements and user configuration, canvas rendering may happen on
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* the Compositor thread, Render thread or the CanvasRender thread.
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*/
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class CanvasRenderThread final {
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING_WITH_DELETE_ON_MAIN_THREAD(
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CanvasRenderThread)
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public:
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/// Can only be called from the main thread, expected to be called at most
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/// once during a process' lifetime. Must be called after the Compositor and
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/// Render threads are initialized.
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static void Start();
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/// Can only be called from the main thread. Must be called before the
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/// Compositor and Render threads are shutdown.
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static void Shutdown();
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/// Can be called from any thread.
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static bool IsInCanvasRenderThread();
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/// Can be called from any thread.
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static bool IsInCanvasWorkerThread();
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/// Can be called from any thread.
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static bool IsInCanvasRenderOrWorkerThread();
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/// Can be called from any thread, may return nullptr late in shutdown.
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static already_AddRefed<nsIThread> GetCanvasRenderThread();
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static void Dispatch(already_AddRefed<nsIRunnable> aRunnable);
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private:
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CanvasRenderThread(nsCOMPtr<nsIThread>&& aThread, bool aCreatedThread);
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~CanvasRenderThread();
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Mutex mMutex;
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nsCOMPtr<nsIThread> const mThread;
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// True if mThread points to CanvasRender thread, false if mThread points to
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// Compositor/Render thread.
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const bool mCreatedThread;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif // _include_gfx_ipc_CanvasRenderThread_h_
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