1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-06-08 05:27:14 +09:00
ladybird/Libraries/LibGfx/PaintingSurface.h
Aliaksandr Kalenik fd147e6be0 LibWeb: Protect SkiaBackendContext with a mutex
The Skia Ganesh backend we currently use doesn't support painting from
multiple threads, which could happen before this change when the main
thread used Skia to paint on the HTML canvas while the rendering thread
was working on display list rasterization.

Fixes https://github.com/LadybirdBrowser/ladybird/issues/4172
2025-04-01 23:39:05 +02:00

71 lines
1.5 KiB
C++

/*
* Copyright (c) 2024-2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/AtomicRefCounted.h>
#include <AK/Function.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/RefPtr.h>
#include <LibGfx/Color.h>
#include <LibGfx/Size.h>
#include <LibGfx/SkiaBackendContext.h>
#ifdef AK_OS_MACOS
# include <LibGfx/MetalContext.h>
#endif
class SkCanvas;
class SkSurface;
namespace Gfx {
class PaintingSurface : public AtomicRefCounted<PaintingSurface> {
public:
enum class Origin {
TopLeft,
BottomLeft,
};
Function<void(PaintingSurface&)> on_flush;
static NonnullRefPtr<PaintingSurface> create_with_size(RefPtr<SkiaBackendContext> context, IntSize size, BitmapFormat color_type, AlphaType alpha_type);
static NonnullRefPtr<PaintingSurface> wrap_bitmap(Bitmap&);
#ifdef AK_OS_MACOS
static NonnullRefPtr<PaintingSurface> wrap_iosurface(Core::IOSurfaceHandle const&, RefPtr<SkiaBackendContext>, Origin = Origin::TopLeft);
#endif
void read_into_bitmap(Bitmap&);
void write_from_bitmap(Bitmap const&);
void notify_content_will_change();
IntSize size() const;
IntRect rect() const;
SkCanvas& canvas() const;
SkSurface& sk_surface() const;
template<typename T>
T sk_image_snapshot() const;
void flush();
~PaintingSurface();
void lock_context() const;
void unlock_context() const;
private:
struct Impl;
PaintingSurface(NonnullOwnPtr<Impl>&&);
NonnullOwnPtr<Impl> m_impl;
};
}