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LibWebView+WebContent: Move backing store allocation into WebContent

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In the upcoming changes, we are going to switch macOS to using an
IOSurface for the backing store. This change will simplify the process
of sharing an IOSurface between processes because we already have the
MachPortServer running in the browser, and WebContent knows how to
locate the corresponding server.
This commit is contained in:
Aliaksandr Kalenik 2024-06-17 18:50:57 +03:00 • committed by Andreas Kling
commit be2c484bb6
Notes: sideshowbarker 2024-07-17 05:13:53 +09:00
14 changed files with 158 additions and 94 deletions
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31
Userland/Services/WebContent/PageClient.cpp
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@ -55,6 +55,7 @@ PageClient::PageClient(PageHost& owner, u64 id)
: m_owner(owner)
, m_page(Web::Page::create(Web::Bindings::main_thread_vm(), *this))
, m_id(id)
, m_backing_store_manager(*this)
{
setup_palette();
@ -96,14 +97,6 @@ void PageClient::ready_to_paint()
}
}
void PageClient::add_backing_store(i32 front_bitmap_id, Gfx::ShareableBitmap const& front_bitmap, i32 back_bitmap_id, Gfx::ShareableBitmap const& back_bitmap)
{
m_backing_stores.front_bitmap_id = front_bitmap_id;
m_backing_stores.back_bitmap_id = back_bitmap_id;
m_backing_stores.front_bitmap = *const_cast<Gfx::ShareableBitmap&>(front_bitmap).bitmap();
m_backing_stores.back_bitmap = *const_cast<Gfx::ShareableBitmap&>(back_bitmap).bitmap();
}
void PageClient::visit_edges(JS::Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
@ -216,20 +209,17 @@ void PageClient::paint_next_frame()
}
}
if (!m_backing_stores.back_bitmap) {
auto back_bitmap = m_backing_store_manager.back_bitmap();
if (!back_bitmap)
return;
}
auto& back_bitmap = *m_backing_stores.back_bitmap;
auto viewport_rect = page().css_to_device_rect(page().top_level_traversable()->viewport_rect());
paint(viewport_rect, back_bitmap);
paint(viewport_rect, *back_bitmap);
auto& backing_stores = m_backing_stores;
swap(backing_stores.front_bitmap, backing_stores.back_bitmap);
swap(backing_stores.front_bitmap_id, backing_stores.back_bitmap_id);
m_backing_store_manager.swap_back_and_front();
m_paint_state = PaintState::WaitingForClient;
client().async_did_paint(m_id, viewport_rect.to_type<int>(), backing_stores.front_bitmap_id);
client().async_did_paint(m_id, viewport_rect.to_type<int>(), m_backing_store_manager.front_id());
}
void PageClient::paint(Web::DevicePixelRect const& content_rect, Gfx::Bitmap& target, Web::PaintOptions paint_options)
@ -245,6 +235,9 @@ void PageClient::paint(Web::DevicePixelRect const& content_rect, Gfx::Bitmap& ta
void PageClient::set_viewport_size(Web::DevicePixelSize const& size)
{
page().top_level_traversable()->set_viewport_size(page().device_to_css_size(size));
m_backing_store_manager.restart_resize_timer();
m_backing_store_manager.resize_backing_stores_if_needed(BackingStoreManager::WindowResizingInProgress::Yes);
}
void PageClient::page_did_request_cursor_change(Gfx::StandardCursor cursor)
@ -596,6 +589,11 @@ void PageClient::page_did_change_audio_play_state(Web::HTML::AudioPlayState play
client().async_did_change_audio_play_state(m_id, play_state);
}
void PageClient::page_did_allocate_backing_stores(i32 front_bitmap_id, Gfx::ShareableBitmap front_bitmap, i32 back_bitmap_id, Gfx::ShareableBitmap back_bitmap)
{
client().async_did_allocate_backing_stores(m_id, front_bitmap_id, front_bitmap, back_bitmap_id, back_bitmap);
}
IPC::File PageClient::request_worker_agent()
{
auto response = client().send_sync_but_allow_failure<Messages::WebContentClient::RequestWorkerAgent>(m_id);
@ -756,5 +754,4 @@ void PageClient::queue_screenshot_task(Optional<i32> node_id)
m_screenshot_tasks.enqueue({ node_id });
page().top_level_traversable()->set_needs_display();
}
}