3c9df3fccd
Prep work for serializing display lists across the IPC boundary. Replace Gfx::Filter's Skia-specific backing with a portable Variant-based representation, add serialize_filter/deserialize_filter, and store filter data inline in ApplyEffects/ApplyBackdropFilter command payloads instead of in DisplayListResourceStorage. FilterResourceId is removed along with the per-storage filter map.
111 lines
4.1 KiB
C++
111 lines
4.1 KiB
C++
/*
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* Copyright (c) 2026, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Filter.h>
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#include <LibGfx/Font/Font.h>
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#include <LibWeb/Painting/DisplayList.h>
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#include <LibWeb/Painting/DisplayListResourceStorage.h>
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namespace Web::Painting {
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DisplayListResourceStorage::~DisplayListResourceStorage() = default;
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FontResourceId DisplayListResourceStorage::add_font(Gfx::Font const& font)
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{
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auto id = font.id();
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m_fonts.ensure(id, [&]() -> NonnullRefPtr<Gfx::Font const> {
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return font;
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});
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return { id };
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}
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ImageFrameResourceId DisplayListResourceStorage::add_image_frame(Gfx::DecodedImageFrame const& frame)
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{
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auto id = frame.id();
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m_image_frames.ensure(id, [&] {
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return frame;
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});
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return { id };
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}
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ExternalContentResourceId DisplayListResourceStorage::add_external_content_source(
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NonnullRefPtr<ExternalContentSource const> source)
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{
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auto id = source->id();
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m_external_content_sources.ensure(id, [&] {
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return move(source);
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});
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return { id };
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}
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VideoFrameResourceId DisplayListResourceStorage::add_video_frame_source(NonnullRefPtr<VideoFrameSource const> source)
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{
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auto id = source->id();
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m_video_frame_sources.ensure(id, [&] {
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return move(source);
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});
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return { id };
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}
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DisplayListResourceId DisplayListResourceStorage::add_display_list(NonnullRefPtr<DisplayList const> display_list)
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{
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auto id = display_list->id();
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m_display_lists.ensure(id, [&] {
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return move(display_list);
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});
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return { id };
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}
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static ReadonlyBytes inline_data(ReadonlyBytes payload, DisplayListDataSpan span)
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{
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VERIFY(static_cast<size_t>(span.offset) + span.size <= payload.size());
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return payload.slice(span.offset, span.size);
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}
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void DisplayListResourceStorage::append_referenced_resources_from(
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DisplayListResourceStorage const& source,
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ReadonlyBytes command_bytes)
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{
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DisplayList::for_each_command_header(command_bytes, [&](DisplayListCommandHeader const& header, ReadonlyBytes payload) {
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visit_display_list_command(header.type, payload, [&](auto const& command) {
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if constexpr (requires { command.font_id; })
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add_font(source.font(command.font_id));
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if constexpr (requires { command.frame_id; })
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add_image_frame(source.image_frame(command.frame_id));
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if constexpr (requires { source.external_content_source(command.source_id); })
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add_external_content_source(source.external_content_source(command.source_id));
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if constexpr (requires { source.video_frame_source(command.source_id); })
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add_video_frame_source(source.video_frame_source(command.source_id));
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if constexpr (requires { command.paint_style; command.paint_kind; }) {
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if (command.paint_kind == decltype(command.paint_kind)::PaintStyle
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&& command.paint_style.type == DisplayListPaintStyleType::Pattern)
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add_display_list(source.display_list(command.paint_style.pattern_tile_display_list_id));
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}
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if constexpr (requires { command.backdrop_filter_data; }) {
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if (command.has_backdrop_filter) {
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Gfx::deserialize_filter(inline_data(payload, command.backdrop_filter_data), [&](u64 image_id) {
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auto const& frame = source.image_frame(ImageFrameResourceId { image_id });
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add_image_frame(frame);
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return frame;
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});
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}
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}
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if constexpr (requires { command.filter_data; }) {
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if (command.has_filter) {
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Gfx::deserialize_filter(inline_data(payload, command.filter_data), [&](u64 image_id) {
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auto const& frame = source.image_frame(ImageFrameResourceId { image_id });
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add_image_frame(frame);
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return frame;
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});
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}
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}
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if constexpr (requires { command.display_list_id; })
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add_display_list(source.display_list(command.display_list_id));
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});
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});
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}
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}
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