a80babffb6
Canvas rendering is a major remaining path where WebContent directly owns GPU-facing drawing state. Back 2D and WebGL canvas contexts with remote Compositor transports, so WebContent talks to canvas surfaces through IPC while the Compositor owns the rasterization resources. This is a large step toward GPU sandboxing because canvas GPU work now lives behind the Compositor boundary. It also gives OffscreenCanvas the process-independent canvas plumbing that HTMLCanvasElement now uses, making worker-owned canvases possible without another WebContent-local rendering path.
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (c) 2024, Jelle Raaijmakers <jelle@ladybird.org>
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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* Copyright (c) 2024, Luke Wilde <luke@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Optional.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Export.h>
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#include <LibWeb/WebGL/Types.h>
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#include <LibWeb/WebGL/WebGLRenderingContextBase.h>
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namespace Web::WebGL {
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class WEB_API WebGLObject : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(WebGLObject, Bindings::PlatformObject);
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public:
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virtual ~WebGLObject();
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String label() const { return m_label; }
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void set_label(String const& label) { m_label = label; }
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ErrorOr<GLuint> handle(WebGLRenderingContextBase const* context) const;
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ErrorOr<Optional<GLuint>> handle_for_deletion(WebGLRenderingContextBase const* context);
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ErrorOr<Optional<GLuint>> handle_for_query(WebGLRenderingContextBase const* context) const;
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protected:
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explicit WebGLObject(JS::Realm&, GC::Ref<WebGLRenderingContextBase>, GLuint handle);
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void initialize(JS::Realm&) override;
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void visit_edges(Visitor&) override;
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bool invalidated() const { return m_invalidated; }
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bool invalidated_for_context(WebGLRenderingContextBase const*) const;
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void invalidate() { m_invalidated = true; }
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ErrorOr<void> validate_context(WebGLRenderingContextBase const* context) const;
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GC::Ref<WebGLRenderingContextBase> m_context;
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private:
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GLuint m_handle { 0 };
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bool m_invalidated { false };
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String m_label;
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};
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}
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