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LibWeb: Make 2D and 3D canvas rendering contexts GC-allocated
This commit is contained in:
Andreas Kling
parent
b8d485e6f0
commit
4452b5ca09
Notes:
sideshowbarker
2024-07-18 02:47:59 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/4452b5ca09 Pull-request: https://github.com/SerenityOS/serenity/pull/14816 Reviewed-by: https://github.com/ADKaster Reviewed-by: https://github.com/linusg ✅
11 changed files with 107 additions and 61 deletions
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@ -151,6 +151,10 @@ static bool impl_is_wrapper(Type const& type)
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return true;
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if (type.name == "MutationRecord"sv)
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return true;
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if (type.name == "CanvasRenderingContext2D"sv)
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return true;
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if (type.name == "WebGLRenderingContext"sv)
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return true;
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return false;
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}
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@ -450,7 +450,6 @@ class URLSearchParamsIterator;
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namespace Web::Bindings {
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class BlobWrapper;
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class CanvasGradientWrapper;
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class CanvasRenderingContext2DWrapper;
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class CryptoWrapper;
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class DOMExceptionWrapper;
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class DOMPointWrapper;
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@ -478,7 +477,6 @@ class TextMetricsWrapper;
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class URLSearchParamsIteratorWrapper;
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class URLSearchParamsWrapper;
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class URLWrapper;
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class WebGLRenderingContextWrapper;
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class WindowProxy;
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class WorkerLocationWrapper;
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class WorkerNavigatorWrapper;
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@ -10,7 +10,7 @@
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#include <LibGfx/Painter.h>
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#include <LibGfx/Quad.h>
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#include <LibGfx/Rect.h>
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#include <LibWeb/Bindings/CanvasRenderingContext2DWrapper.h>
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#include <LibWeb/Bindings/CanvasRenderingContext2DPrototype.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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#include <LibWeb/HTML/CanvasRenderingContext2D.h>
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#include <LibWeb/HTML/HTMLCanvasElement.h>
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@ -23,13 +23,26 @@
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namespace Web::HTML {
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CanvasRenderingContext2D::CanvasRenderingContext2D(HTMLCanvasElement& element)
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: m_element(JS::make_handle(element))
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JS::NonnullGCPtr<CanvasRenderingContext2D> CanvasRenderingContext2D::create(HTML::Window& window, HTMLCanvasElement& element)
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{
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return *window.heap().allocate<CanvasRenderingContext2D>(window.realm(), window, element);
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}
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CanvasRenderingContext2D::CanvasRenderingContext2D(HTML::Window& window, HTMLCanvasElement& element)
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: PlatformObject(window.realm())
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, m_element(element)
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{
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set_prototype(&window.ensure_web_prototype<Bindings::CanvasRenderingContext2DPrototype>("CanvasRenderingContext2D"));
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}
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CanvasRenderingContext2D::~CanvasRenderingContext2D() = default;
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void CanvasRenderingContext2D::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_element.ptr());
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}
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HTMLCanvasElement& CanvasRenderingContext2D::canvas_element()
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{
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return *m_element;
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@ -306,11 +319,7 @@ void CanvasRenderingContext2D::fill(Path2D& path, String const& fill_rule)
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RefPtr<ImageData> CanvasRenderingContext2D::create_image_data(int width, int height) const
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{
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if (!wrapper()) {
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dbgln("Hmm! Attempted to create ImageData for wrapper-less CRC2D.");
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return {};
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}
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return ImageData::create_with_size(wrapper()->vm(), width, height);
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return ImageData::create_with_size(vm(), width, height);
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}
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// https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-getimagedata
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@ -326,7 +335,7 @@ DOM::ExceptionOr<RefPtr<ImageData>> CanvasRenderingContext2D::get_image_data(int
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// 3. Let imageData be a new ImageData object.
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// 4. Initialize imageData given sw, sh, settings set to settings, and defaultColorSpace set to this's color space.
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auto image_data = ImageData::create_with_size(wrapper()->vm(), width, height);
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auto image_data = ImageData::create_with_size(vm(), width, height);
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// NOTE: We don't attempt to create the underlying bitmap here; if it doesn't exist, it's like copying only transparent black pixels (which is a no-op).
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if (!canvas_element().bitmap())
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@ -7,14 +7,13 @@
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#pragma once
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#include <AK/RefCountForwarder.h>
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#include <AK/Variant.h>
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#include <LibGfx/AffineTransform.h>
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#include <LibGfx/Color.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Painter.h>
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#include <LibGfx/Path.h>
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#include <LibWeb/Bindings/Wrappable.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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#include <LibWeb/HTML/Canvas/CanvasDrawImage.h>
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#include <LibWeb/HTML/Canvas/CanvasDrawPath.h>
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@ -37,8 +36,7 @@ namespace Web::HTML {
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using CanvasImageSource = Variant<JS::Handle<HTMLImageElement>, JS::Handle<HTMLCanvasElement>>;
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class CanvasRenderingContext2D
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: public RefCounted<CanvasRenderingContext2D>
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, public Bindings::Wrappable
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: public Bindings::PlatformObject
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, public CanvasPath
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, public CanvasState
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, public CanvasTransform<CanvasRenderingContext2D>
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@ -50,14 +48,11 @@ class CanvasRenderingContext2D
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, public CanvasImageData
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, public CanvasPathDrawingStyles<CanvasRenderingContext2D> {
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AK_MAKE_NONCOPYABLE(CanvasRenderingContext2D);
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AK_MAKE_NONMOVABLE(CanvasRenderingContext2D);
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WEB_PLATFORM_OBJECT(CanvasRenderingContext2D, Bindings::PlatformObject);
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public:
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using WrapperType = Bindings::CanvasRenderingContext2DWrapper;
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static NonnullRefPtr<CanvasRenderingContext2D> create(HTMLCanvasElement& element) { return adopt_ref(*new CanvasRenderingContext2D(element)); }
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~CanvasRenderingContext2D();
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static JS::NonnullGCPtr<CanvasRenderingContext2D> create(HTML::Window&, HTMLCanvasElement&);
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virtual ~CanvasRenderingContext2D() override;
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virtual void fill_rect(float x, float y, float width, float height) override;
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virtual void stroke_rect(float x, float y, float width, float height) override;
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@ -88,7 +83,9 @@ public:
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virtual void clip() override;
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private:
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explicit CanvasRenderingContext2D(HTMLCanvasElement&);
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explicit CanvasRenderingContext2D(HTML::Window&, HTMLCanvasElement&);
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virtual void visit_edges(Cell::Visitor&) override;
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struct PreparedTextGlyph {
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unsigned int c;
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@ -112,7 +109,7 @@ private:
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void stroke_internal(Gfx::Path const&);
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void fill_internal(Gfx::Path&, String const& fill_rule);
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JS::Handle<HTMLCanvasElement> m_element;
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JS::NonnullGCPtr<HTMLCanvasElement> m_element;
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// https://html.spec.whatwg.org/multipage/canvas.html#concept-canvas-origin-clean
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bool m_origin_clean { true };
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@ -127,3 +124,5 @@ DOM::ExceptionOr<CanvasImageSourceUsability> check_usability_of_image(CanvasImag
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bool image_is_not_origin_clean(CanvasImageSource const&);
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}
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WRAPPER_HACK(CanvasRenderingContext2D, Web::HTML)
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@ -8,6 +8,7 @@
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#include <AK/Checked.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/PNGWriter.h>
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#include <LibWeb/Bindings/HTMLCanvasElementPrototype.h>
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#include <LibWeb/CSS/StyleComputer.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/CanvasRenderingContext2D.h>
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@ -21,10 +22,25 @@ static constexpr auto max_canvas_area = 16384 * 16384;
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HTMLCanvasElement::HTMLCanvasElement(DOM::Document& document, DOM::QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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set_prototype(&document.window().ensure_web_prototype<Bindings::HTMLCanvasElementPrototype>("HTMLCanvasElement"));
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}
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HTMLCanvasElement::~HTMLCanvasElement() = default;
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void HTMLCanvasElement::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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m_context.visit(
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[&](JS::NonnullGCPtr<CanvasRenderingContext2D>& context) {
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visitor.visit(context.ptr());
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},
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[&](JS::NonnullGCPtr<WebGL::WebGLRenderingContext>& context) {
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visitor.visit(context.ptr());
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},
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[](Empty) {
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});
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}
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unsigned HTMLCanvasElement::width() const
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{
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return attribute(HTML::AttributeNames::width).to_uint().value_or(300);
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@ -38,10 +54,10 @@ unsigned HTMLCanvasElement::height() const
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void HTMLCanvasElement::reset_context_to_default_state()
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{
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m_context.visit(
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[](NonnullRefPtr<CanvasRenderingContext2D>& context) {
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[](JS::NonnullGCPtr<CanvasRenderingContext2D>& context) {
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context->reset_to_default_state();
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},
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[](NonnullRefPtr<WebGL::WebGLRenderingContext>&) {
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[](JS::NonnullGCPtr<WebGL::WebGLRenderingContext>&) {
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TODO();
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},
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[](Empty) {
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@ -71,22 +87,22 @@ RefPtr<Layout::Node> HTMLCanvasElement::create_layout_node(NonnullRefPtr<CSS::St
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HTMLCanvasElement::HasOrCreatedContext HTMLCanvasElement::create_2d_context()
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{
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if (!m_context.has<Empty>())
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return m_context.has<NonnullRefPtr<CanvasRenderingContext2D>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
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return m_context.has<JS::NonnullGCPtr<CanvasRenderingContext2D>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
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m_context = CanvasRenderingContext2D::create(*this);
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m_context = CanvasRenderingContext2D::create(window(), *this);
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return HasOrCreatedContext::Yes;
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}
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JS::ThrowCompletionOr<HTMLCanvasElement::HasOrCreatedContext> HTMLCanvasElement::create_webgl_context(JS::Value options)
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{
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if (!m_context.has<Empty>())
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return m_context.has<NonnullRefPtr<WebGL::WebGLRenderingContext>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
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return m_context.has<JS::NonnullGCPtr<WebGL::WebGLRenderingContext>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
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auto maybe_context = TRY(WebGL::WebGLRenderingContext::create(*this, options));
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auto maybe_context = TRY(WebGL::WebGLRenderingContext::create(window(), *this, options));
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if (!maybe_context)
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return HasOrCreatedContext::No;
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m_context = maybe_context.release_nonnull();
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m_context = JS::NonnullGCPtr<WebGL::WebGLRenderingContext>(*maybe_context);
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return HasOrCreatedContext::Yes;
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}
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@ -104,7 +120,7 @@ JS::ThrowCompletionOr<HTMLCanvasElement::RenderingContext> HTMLCanvasElement::ge
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// NOTE: See the spec for the full table.
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if (type == "2d"sv) {
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if (create_2d_context() == HasOrCreatedContext::Yes)
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return m_context;
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return JS::make_handle(*m_context.get<JS::NonnullGCPtr<HTML::CanvasRenderingContext2D>>());
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return Empty {};
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}
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@ -112,7 +128,7 @@ JS::ThrowCompletionOr<HTMLCanvasElement::RenderingContext> HTMLCanvasElement::ge
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// NOTE: The WebGL spec says "experimental-webgl" is also acceptable and must be equivalent to "webgl". Other engines accept this, so we do too.
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if (type.is_one_of("webgl"sv, "experimental-webgl"sv)) {
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if (TRY(create_webgl_context(options)) == HasOrCreatedContext::Yes)
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return m_context;
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return JS::make_handle(*m_context.get<JS::NonnullGCPtr<WebGL::WebGLRenderingContext>>());
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return Empty {};
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}
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@ -168,10 +184,10 @@ String HTMLCanvasElement::to_data_url(String const& type, [[maybe_unused]] Optio
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void HTMLCanvasElement::present()
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{
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m_context.visit(
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[](NonnullRefPtr<CanvasRenderingContext2D>&) {
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[](JS::NonnullGCPtr<CanvasRenderingContext2D>&) {
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// Do nothing, CRC2D writes directly to the canvas bitmap.
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},
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[](NonnullRefPtr<WebGL::WebGLRenderingContext>& context) {
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[](JS::NonnullGCPtr<WebGL::WebGLRenderingContext>& context) {
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context->present();
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},
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[](Empty) {
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@ -17,7 +17,7 @@ class HTMLCanvasElement final : public HTMLElement {
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WEB_PLATFORM_OBJECT(HTMLCanvasElement, HTMLElement);
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public:
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using RenderingContext = Variant<NonnullRefPtr<CanvasRenderingContext2D>, NonnullRefPtr<WebGL::WebGLRenderingContext>, Empty>;
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using RenderingContext = Variant<JS::Handle<CanvasRenderingContext2D>, JS::Handle<WebGL::WebGLRenderingContext>, Empty>;
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virtual ~HTMLCanvasElement() override;
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@ -40,6 +40,8 @@ public:
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private:
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HTMLCanvasElement(DOM::Document&, DOM::QualifiedName);
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virtual void visit_edges(Cell::Visitor&) override;
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virtual RefPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;
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enum class HasOrCreatedContext {
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@ -52,7 +54,8 @@ private:
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void reset_context_to_default_state();
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RefPtr<Gfx::Bitmap> m_bitmap;
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RenderingContext m_context;
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Variant<JS::NonnullGCPtr<HTML::CanvasRenderingContext2D>, JS::NonnullGCPtr<WebGL::WebGLRenderingContext>, Empty> m_context;
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};
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}
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@ -4,9 +4,11 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/WebGLRenderingContextPrototype.h>
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#include <LibWeb/Bindings/Wrapper.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/HTMLCanvasElement.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/WebGL/WebGLContextEvent.h>
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#include <LibWeb/WebGL/WebGLRenderingContext.h>
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@ -30,7 +32,7 @@ static void fire_webgl_context_creation_error(HTML::HTMLCanvasElement& canvas_el
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fire_webgl_context_event(canvas_element, "webglcontextcreationerror"sv);
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}
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JS::ThrowCompletionOr<RefPtr<WebGLRenderingContext>> WebGLRenderingContext::create(HTML::HTMLCanvasElement& canvas_element, JS::Value options)
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JS::ThrowCompletionOr<JS::GCPtr<WebGLRenderingContext>> WebGLRenderingContext::create(HTML::Window& window, HTML::HTMLCanvasElement& canvas_element, JS::Value options)
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{
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// We should be coming here from getContext being called on a wrapped <canvas> element.
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auto context_attributes = TRY(convert_value_to_context_attributes_dictionary(canvas_element.vm(), options));
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@ -38,20 +40,29 @@ JS::ThrowCompletionOr<RefPtr<WebGLRenderingContext>> WebGLRenderingContext::crea
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bool created_bitmap = canvas_element.create_bitmap(/* minimum_width= */ 1, /* minimum_height= */ 1);
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if (!created_bitmap) {
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fire_webgl_context_creation_error(canvas_element);
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return RefPtr<WebGLRenderingContext> { nullptr };
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return JS::GCPtr<WebGLRenderingContext> { nullptr };
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}
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#ifndef __serenity__
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// FIXME: Make WebGL work on other platforms.
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(void)window;
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(void)context_attributes;
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dbgln("FIXME: WebGL not supported on the current platform");
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fire_webgl_context_creation_error(canvas_element);
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return RefPtr<WebGLRenderingContext> { nullptr };
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return JS::GCPtr<WebGLRenderingContext> { nullptr };
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#else
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// FIXME: LibGL currently doesn't propagate context creation errors.
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auto context = GL::create_context(*canvas_element.bitmap());
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return adopt_ref(*new WebGLRenderingContext(canvas_element, move(context), context_attributes, context_attributes));
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return window.heap().allocate<WebGLRenderingContext>(window.realm(), window, canvas_element, move(context), context_attributes, context_attributes);
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#endif
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}
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WebGLRenderingContext::WebGLRenderingContext(HTML::Window& window, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
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: WebGLRenderingContextBase(window, canvas_element, move(context), move(context_creation_parameters), move(actual_context_parameters))
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{
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set_prototype(&window.ensure_web_prototype<Bindings::WebGLRenderingContextPrototype>("WebGLRenderingContext"));
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}
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WebGLRenderingContext::~WebGLRenderingContext() = default;
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}
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@ -6,26 +6,22 @@
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#pragma once
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#include <LibWeb/Bindings/Wrappable.h>
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#include <LibWeb/WebGL/WebGLRenderingContextBase.h>
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namespace Web::WebGL {
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class WebGLRenderingContext
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: public WebGLRenderingContextBase
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, public Bindings::Wrappable {
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class WebGLRenderingContext final : public WebGLRenderingContextBase {
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WEB_PLATFORM_OBJECT(WebGLRenderingContext, WebGLRenderingContextBase);
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public:
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using WrapperType = Bindings::WebGLRenderingContextWrapper;
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static JS::ThrowCompletionOr<JS::GCPtr<WebGLRenderingContext>> create(HTML::Window&, HTML::HTMLCanvasElement& canvas_element, JS::Value options);
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static JS::ThrowCompletionOr<RefPtr<WebGLRenderingContext>> create(HTML::HTMLCanvasElement& canvas_element, JS::Value options);
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virtual ~WebGLRenderingContext() override = default;
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virtual ~WebGLRenderingContext() override;
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private:
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WebGLRenderingContext(HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
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: WebGLRenderingContextBase(canvas_element, move(context), move(context_creation_parameters), move(actual_context_parameters))
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{
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}
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WebGLRenderingContext(HTML::Window&, HTML::HTMLCanvasElement&, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters);
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};
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}
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WRAPPER_HACK(WebGLRenderingContext, Web::WebGL)
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|
|||
|
|
@ -7,12 +7,14 @@
|
|||
#include <AK/Debug.h>
|
||||
#include <LibGL/GLContext.h>
|
||||
#include <LibWeb/HTML/HTMLCanvasElement.h>
|
||||
#include <LibWeb/HTML/Window.h>
|
||||
#include <LibWeb/WebGL/WebGLRenderingContextBase.h>
|
||||
|
||||
namespace Web::WebGL {
|
||||
|
||||
WebGLRenderingContextBase::WebGLRenderingContextBase(HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
|
||||
: m_canvas_element(canvas_element)
|
||||
WebGLRenderingContextBase::WebGLRenderingContextBase(HTML::Window& window, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters)
|
||||
: PlatformObject(window.realm())
|
||||
, m_canvas_element(canvas_element)
|
||||
, m_context(move(context))
|
||||
, m_context_creation_parameters(move(context_creation_parameters))
|
||||
, m_actual_context_parameters(move(actual_context_parameters))
|
||||
|
|
@ -21,6 +23,12 @@ WebGLRenderingContextBase::WebGLRenderingContextBase(HTML::HTMLCanvasElement& ca
|
|||
|
||||
WebGLRenderingContextBase::~WebGLRenderingContextBase() = default;
|
||||
|
||||
void WebGLRenderingContextBase::visit_edges(Cell::Visitor& visitor)
|
||||
{
|
||||
Base::visit_edges(visitor);
|
||||
visitor.visit(m_canvas_element.ptr());
|
||||
}
|
||||
|
||||
#define RETURN_WITH_WEBGL_ERROR_IF(condition, error) \
|
||||
if (condition) { \
|
||||
dbgln_if(WEBGL_CONTEXT_DEBUG, "{}(): error {:#x}", __func__, error); \
|
||||
|
|
|
|||
|
|
@ -15,9 +15,9 @@
|
|||
|
||||
namespace Web::WebGL {
|
||||
|
||||
class WebGLRenderingContextBase
|
||||
: public RefCounted<WebGLRenderingContextBase>
|
||||
, public Weakable<WebGLRenderingContextBase> {
|
||||
class WebGLRenderingContextBase : public Bindings::PlatformObject {
|
||||
WEB_PLATFORM_OBJECT(WebGLRenderingContextBase, Bindings::PlatformObject);
|
||||
|
||||
public:
|
||||
virtual ~WebGLRenderingContextBase();
|
||||
|
||||
|
|
@ -62,10 +62,12 @@ public:
|
|||
void viewport(GLint x, GLint y, GLsizei width, GLsizei height);
|
||||
|
||||
protected:
|
||||
WebGLRenderingContextBase(HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters);
|
||||
WebGLRenderingContextBase(HTML::Window&, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<GL::GLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters);
|
||||
|
||||
private:
|
||||
JS::Handle<HTML::HTMLCanvasElement> m_canvas_element;
|
||||
virtual void visit_edges(Cell::Visitor&) override;
|
||||
|
||||
JS::NonnullGCPtr<HTML::HTMLCanvasElement> m_canvas_element;
|
||||
|
||||
NonnullOwnPtr<GL::GLContext> m_context;
|
||||
|
||||
|
|
|
|||
|
|
@ -62,7 +62,7 @@ libweb_js_wrapper(Geometry/DOMRect)
|
|||
libweb_js_wrapper(Geometry/DOMRectList)
|
||||
libweb_js_wrapper(Geometry/DOMRectReadOnly)
|
||||
libweb_js_wrapper(HTML/CanvasGradient)
|
||||
libweb_js_wrapper(HTML/CanvasRenderingContext2D)
|
||||
libweb_js_wrapper(HTML/CanvasRenderingContext2D NO_INSTANCE)
|
||||
libweb_js_wrapper(HTML/CloseEvent NO_INSTANCE)
|
||||
libweb_js_wrapper(HTML/DOMParser NO_INSTANCE)
|
||||
libweb_js_wrapper(HTML/DOMStringMap NO_INSTANCE)
|
||||
|
|
@ -183,7 +183,7 @@ libweb_js_wrapper(UIEvents/UIEvent NO_INSTANCE)
|
|||
libweb_js_wrapper(URL/URL)
|
||||
libweb_js_wrapper(URL/URLSearchParams ITERABLE)
|
||||
libweb_js_wrapper(WebGL/WebGLContextEvent NO_INSTANCE)
|
||||
libweb_js_wrapper(WebGL/WebGLRenderingContext)
|
||||
libweb_js_wrapper(WebGL/WebGLRenderingContext NO_INSTANCE)
|
||||
libweb_js_wrapper(WebSockets/WebSocket NO_INSTANCE)
|
||||
libweb_js_wrapper(XHR/ProgressEvent NO_INSTANCE)
|
||||
libweb_js_wrapper(XHR/XMLHttpRequest NO_INSTANCE)
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue