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https://github.com/LadybirdBrowser/ladybird
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40f2abb7fe
Decoded image data should not continue to traffic in ImmutableBitmap now that the bitmap wrapper is being retired. Introduce DecodedImageFrame as the paintable decoded-image unit and store a Bitmap plus ColorSpace in it directly. Thread the new frame type through decoded image data, display-list image commands, filters, canvas drawImage, patterns, WebGL texture upload, and CSS/SVG image consumers. ImmutableBitmap remains only at the legacy boundaries that still need it, such as HTML video snapshots and callers that explicitly ask for a bitmap snapshot. This keeps color-space ownership with the decoded frame while making the expensive or legacy ImmutableBitmap path explicit at the few call sites that still need it.
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* Copyright (c) 2026, Gregory Bertilson <gregory@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 <LibGfx/Forward.h>
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#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/HTMLMediaElement.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::HTML {
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struct VideoFrame {
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RefPtr<Gfx::Bitmap> frame;
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double position { 0.0 };
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};
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class HTMLVideoElement final : public HTMLMediaElement {
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WEB_PLATFORM_OBJECT(HTMLVideoElement, HTMLMediaElement);
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GC_DECLARE_ALLOCATOR(HTMLVideoElement);
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public:
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static constexpr bool OVERRIDES_FINALIZE = true;
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virtual ~HTMLVideoElement() override;
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Layout::VideoBox* layout_node();
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Layout::VideoBox const* layout_node() const;
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void set_intrinsic_video_dimensions(Optional<Gfx::Size<u32>>);
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u32 video_width() const;
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u32 video_height() const;
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virtual void update_intrinsic_video_dimensions() override;
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virtual void update_natural_dimensions() override;
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Optional<Gfx::Size<u32>> natural_media_size() const;
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Optional<CSSPixelSize> natural_element_size() const;
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RefPtr<Gfx::Bitmap> const& poster_frame() const { return m_poster_frame; }
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// https://html.spec.whatwg.org/multipage/media.html#the-video-element:the-video-element-7
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// NB: We combine the values of...
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// - The last frame of the video to have been rendered
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// - The frame of video corresponding to the current playback position
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// ...into the value of VideoFrame below, as the playback system itself implements
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// the details of the selection of a video frame to match the specification in this
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// respect.
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enum class Representation : u8 {
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VideoFrame,
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FirstVideoFrame,
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PosterFrame,
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TransparentBlack,
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};
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Representation current_representation() const;
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// FIXME: This is a hack for images used as CanvasImageSource. Do something more elegant.
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RefPtr<Gfx::ImmutableBitmap> bitmap() const;
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Gfx::ColorSpace const* current_frame_color_space() const;
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private:
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HTMLVideoElement(DOM::Document&, DOM::QualifiedName);
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virtual void initialize(JS::Realm&) override;
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virtual void finalize() override;
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_) override;
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// https://html.spec.whatwg.org/multipage/media.html#the-video-element:dimension-attributes
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virtual bool supports_dimension_attributes() const override { return true; }
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virtual GC::Ptr<Layout::Node> create_layout_node(GC::Ref<CSS::ComputedProperties>) override;
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WebIDL::ExceptionOr<void> determine_element_poster_frame(Optional<String> const& poster);
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GC::Ptr<HTML::VideoTrack> m_video_track;
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VideoFrame m_current_frame;
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RefPtr<Gfx::Bitmap> m_poster_frame;
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Optional<Gfx::Size<u32>> m_intrinsic_video_dimensions;
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Optional<CSSPixelSize> m_natural_dimensiosn;
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GC::Ptr<Fetch::Infrastructure::FetchController> m_fetch_controller;
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Optional<DOM::DocumentLoadEventDelayer> m_load_event_delayer;
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};
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}
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