752a8de24f
CompositorThread still owned the backing-store surfaces and allocation helpers after BackingStoreManager moved into the compositor. That left the thread class responsible for low-level surface creation details even though the manager now decides when backing stores need to change.
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/*
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* Copyright (c) 2024-2026, 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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#pragma once
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#include <AK/Noncopyable.h>
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#include <AK/Optional.h>
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/SharedImage.h>
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#include <LibGfx/Size.h>
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#include <LibWeb/Export.h>
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namespace Web::Compositor {
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enum class WindowResizingInProgress : u8;
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class WEB_API BackingStoreManager {
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AK_MAKE_NONCOPYABLE(BackingStoreManager);
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AK_MAKE_NONMOVABLE(BackingStoreManager);
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public:
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struct Allocation {
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Gfx::IntSize size;
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i32 front_bitmap_id { -1 };
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i32 back_bitmap_id { -1 };
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};
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struct Publication {
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i32 front_bitmap_id { -1 };
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Gfx::SharedImage front_shared_image;
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i32 back_bitmap_id { -1 };
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Gfx::SharedImage back_shared_image;
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};
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BackingStoreManager() = default;
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Optional<Allocation> resize_backing_stores_if_needed(
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Gfx::IntSize viewport_size, bool is_top_level_traversable, WindowResizingInProgress);
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Optional<Publication> allocate_backing_stores(Allocation const&, RefPtr<Gfx::SkiaBackendContext> const&, bool should_publish);
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bool is_valid() const;
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Gfx::PaintingSurface& front_store();
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Gfx::PaintingSurface& back_store();
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i32 back_bitmap_id() const;
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void swap();
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private:
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struct BackingStoreState {
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RefPtr<Gfx::PaintingSurface> front_store;
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RefPtr<Gfx::PaintingSurface> back_store;
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i32 front_bitmap_id { -1 };
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i32 back_bitmap_id { -1 };
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bool is_valid() const { return front_store && back_store; }
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};
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int m_next_bitmap_id { 0 };
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// Used to track if backing stores need reallocation
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Gfx::IntSize m_allocated_size;
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BackingStoreState m_backing_stores;
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};
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}
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