From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- gfx/layers/OOPCanvasRenderer.h | 53 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 gfx/layers/OOPCanvasRenderer.h (limited to 'gfx/layers/OOPCanvasRenderer.h') diff --git a/gfx/layers/OOPCanvasRenderer.h b/gfx/layers/OOPCanvasRenderer.h new file mode 100644 index 0000000000..bc56a2a5fa --- /dev/null +++ b/gfx/layers/OOPCanvasRenderer.h @@ -0,0 +1,53 @@ +/* -*- 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_ -- cgit v1.2.3