ladybird/Kernel/Graphics/Console/BootFramebufferConsole.h
Liav A 37ed1b28fa Kernel: Ensure proper locking when mutating boot console cursor
The BootFramebufferConsole highly depends on using the m_lock spinlock,
therefore setting and changing the cursor state should be done under
that spinlock too to avoid crashing.
2022-09-20 20:51:03 +01:00

53 lines
1.5 KiB
C++

/*
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Forward.h>
#include <Kernel/Graphics/Console/GenericFramebufferConsole.h>
namespace Kernel::Graphics {
class BootFramebufferConsole : public GenericFramebufferConsoleImpl {
public:
virtual void clear(size_t x, size_t y, size_t length) override;
virtual void write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical = false) override;
using GenericFramebufferConsoleImpl::write;
virtual void enable() override;
virtual void disable() override;
virtual void flush(size_t, size_t, size_t, size_t) override { }
virtual void set_resolution(size_t, size_t, size_t) override { }
// FIXME: Port MemoryManager to aarch64
#if ARCH(AARCH64)
BootFramebufferConsole(u8* framebuffer_addr, size_t width, size_t height, size_t pitch);
#else
BootFramebufferConsole(PhysicalAddress framebuffer_addr, size_t width, size_t height, size_t pitch);
#endif
private:
virtual void set_cursor(size_t x, size_t y) override;
virtual void hide_cursor() override;
virtual void show_cursor() override;
protected:
virtual void clear_glyph(size_t x, size_t y) override;
virtual u8* framebuffer_data() override;
// FIXME: Port MemoryManager to aarch64
#if ARCH(AARCH64)
u8* m_framebuffer;
#else
OwnPtr<Memory::Region> m_framebuffer;
#endif
u8* m_framebuffer_data {};
mutable Spinlock m_lock { LockRank::None };
};
}