mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 07:30:19 +00:00
c92f8ab1ea
Using mmap-allocated memory for backing stores does not allow us to benefit from using GPU-accelerated painting, because all the performance increase we get is mostly negated by reading the GPU-allocated texture back into RAM, so it can be shared with the browser process. With IOSurface, we get a framebuffer that is both shareable between processes and can be used as underlying memory for an OpenGL/Metal texture. This change does not yet benefit from using IOSurface and merely wraps them into Gfx::Bitmap to be used by the CPU painter.
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2024, Andrew Kaster <akaster@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Platform.h>
|
|
|
|
#if !defined(AK_OS_MACH)
|
|
# error "This file is only for Mach kernel-based OS's"
|
|
#endif
|
|
|
|
#include <AK/Atomic.h>
|
|
#include <AK/String.h>
|
|
#include <LibCore/MachPort.h>
|
|
#include <LibThreading/Thread.h>
|
|
|
|
namespace Ladybird {
|
|
|
|
class MachPortServer {
|
|
|
|
public:
|
|
MachPortServer();
|
|
~MachPortServer();
|
|
|
|
void start();
|
|
void stop();
|
|
|
|
bool is_initialized();
|
|
|
|
Function<void(pid_t, Core::MachPort)> on_receive_child_mach_port;
|
|
struct BackingStoresMessage {
|
|
pid_t pid { -1 };
|
|
u64 page_id { 0 };
|
|
i32 front_backing_store_id { 0 };
|
|
i32 back_backing_store_id { 0 };
|
|
Core::MachPort front_backing_store_port;
|
|
Core::MachPort back_backing_store_port;
|
|
};
|
|
Function<void(BackingStoresMessage)> on_receive_backing_stores;
|
|
|
|
ByteString const& server_port_name() const { return m_server_port_name; }
|
|
|
|
private:
|
|
void thread_loop();
|
|
ErrorOr<void> allocate_server_port();
|
|
|
|
NonnullRefPtr<Threading::Thread> m_thread;
|
|
ByteString const m_server_port_name;
|
|
Core::MachPort m_server_port_recv_right;
|
|
Core::MachPort m_server_port_send_right;
|
|
|
|
Atomic<bool> m_should_stop { false };
|
|
};
|
|
|
|
}
|