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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_OOPCANVASRENDERER_H_
#define MOZILLA_LAYERS_OOPCANVASRENDERER_H_
#include "nsISupportsImpl.h"
class nsICanvasRenderingContextInternal;
namespace mozilla {
namespace dom {
class HTMLCanvasElement;
}
namespace layers {
class CanvasClient;
/**
* This renderer works with WebGL running in the host process. It does
* not perform any graphics operations itself -- it is the client-side
* representation. It forwards WebGL composition to the remote process.
*/
class OOPCanvasRenderer final {
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(OOPCanvasRenderer)
public:
explicit OOPCanvasRenderer(nsICanvasRenderingContextInternal* aContext)
: mContext(aContext) {}
dom::HTMLCanvasElement* mHTMLCanvasElement = nullptr;
// The ClientWebGLContext that this is for
nsICanvasRenderingContextInternal* mContext = nullptr;
// The lifetime of this pointer is controlled by OffscreenCanvas
// Can be accessed in active thread and ImageBridge thread.
// But we never accessed it at the same time on both thread. So no
// need to protect this member.
CanvasClient* mCanvasClient = nullptr;
private:
~OOPCanvasRenderer() = default;
};
} // namespace layers
} // namespace mozilla
#endif // MOZILLA_LAYERS_OOPCANVASRENDERER_H_
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