ladybird/Libraries/LibWeb/Painting/BackingStoreManager.h
Aliaksandr Kalenik c18314b942 LibWeb+LibGfx: Replace BackingStore with PaintingSurface
Now, when Skia backend context is available by the time backing stores
are allocated, there is no need to have a separate BackingStore class.

This allows us to get rid of BackingStore -> PaintingSurface cache.
2025-07-04 16:12:47 +02:00

62 lines
1.5 KiB
C++

/*
* Copyright (c) 2024-2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/HTML/Navigable.h>
namespace Web::Painting {
class BackingStoreManager : public JS::Cell {
GC_CELL(BackingStoreManager, JS::Cell);
GC_DECLARE_ALLOCATOR(BackingStoreManager);
public:
#ifdef AK_OS_MACOS
static void set_browser_mach_port(Core::MachPort&&);
#endif
enum class WindowResizingInProgress {
No,
Yes
};
void resize_backing_stores_if_needed(WindowResizingInProgress window_resize_in_progress);
void reallocate_backing_stores(Gfx::IntSize);
void restart_resize_timer();
struct BackingStore {
i32 bitmap_id { -1 };
RefPtr<Gfx::PaintingSurface> store;
};
BackingStore acquire_store_for_next_frame()
{
BackingStore backing_store;
backing_store.bitmap_id = m_back_bitmap_id;
backing_store.store = m_back_store;
swap_back_and_front();
return backing_store;
}
virtual void visit_edges(Cell::Visitor& visitor) override;
BackingStoreManager(HTML::Navigable&);
private:
void swap_back_and_front();
GC::Ref<HTML::Navigable> m_navigable;
i32 m_front_bitmap_id { -1 };
i32 m_back_bitmap_id { -1 };
RefPtr<Gfx::PaintingSurface> m_front_store;
RefPtr<Gfx::PaintingSurface> m_back_store;
int m_next_bitmap_id { 0 };
RefPtr<Core::Timer> m_backing_store_shrink_timer;
};
}