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LibWeb/WebGL: Forward the render context ref count to HTMLCanvasElement

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This allows HTMLCanvasElement and WebGL rendering contexts to share
their lifetime, as JS allows them to arbitrarily access them at any
time and WebGLRCB.canvas expects a non-null return value.
This commit is contained in:
Luke Wilde
2022-06-19 19:45:33 +01:00
committed by Linus Groh
parent adf8341c4e
commit 0ec8a19a34
Notes: sideshowbarker 2024-07-17 09:56:01 +09:00 
Author: https://github.com/Lubrsi
Commit: https://github.com/SerenityOS/serenity/commit/0ec8a19a34
Pull-request: https://github.com/SerenityOS/serenity/pull/14341
2 changed files with 18 additions and 9 deletions
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9
Userland/Libraries/LibWeb/WebGL/WebGLRenderingContextBase.h
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@@ -6,7 +6,7 @@
#pragma once
#include <AK/RefCounted.h>
#include <AK/RefCountForwarder.h>
#include <AK/WeakPtr.h>
#include <AK/Weakable.h>
#include <LibGL/GLContext.h>
@@ -16,7 +16,7 @@
namespace Web::WebGL {
class WebGLRenderingContextBase
: public RefCounted<WebGLRenderingContextBase>
: public RefCountForwarder<HTML::HTMLCanvasElement>
, public Weakable<WebGLRenderingContextBase> {
public:
virtual ~WebGLRenderingContextBase();
@@ -63,8 +63,6 @@ protected:
WebGLRenderingContextBase(HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters);
private:
WeakPtr<HTML::HTMLCanvasElement> m_canvas_element;
NonnullOwnPtr<GL::GLContext> m_context;
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#context-creation-parameters
@@ -87,6 +85,9 @@ private:
GLenum m_error { GL_NO_ERROR };
HTML::HTMLCanvasElement& canvas_element();
HTML::HTMLCanvasElement const& canvas_element() const;
void needs_to_present();
void set_error(GLenum error);
};