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https://github.com/RGBCube/serenity
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fb488e2b27
If we have a VGA-capable graphics adapter that we support, we should prefer it over any legacy VGA because we wouldn't use it in legacy VGA mode in this case. This solves the problem where we would only use the legacy VGA card when both a legacy VGA card as well as a VGA-mode capable adapter is present.
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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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/NonnullOwnPtr.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/Types.h>
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#include <Kernel/Graphics/Console/Console.h>
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#include <Kernel/Graphics/GraphicsDevice.h>
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#include <Kernel/Graphics/VGACompatibleAdapter.h>
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#include <Kernel/PCI/Definitions.h>
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#include <Kernel/VM/Region.h>
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namespace Kernel {
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class BochsGraphicsAdapter;
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class IntelNativeGraphicsAdapter;
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class VGACompatibleAdapter;
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class GraphicsManagement {
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friend class BochsGraphicsAdapter;
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friend class IntelNativeGraphicsAdapter;
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friend class VGACompatibleAdapter;
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AK_MAKE_ETERNAL
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public:
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static GraphicsManagement& the();
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static bool is_initialized();
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bool initialize();
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unsigned allocate_minor_device_number() { return m_current_minor_number++; };
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GraphicsManagement();
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bool framebuffer_devices_allowed() const { return m_framebuffer_devices_allowed; }
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bool framebuffer_devices_exist() const;
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SpinLock<u8>& main_vga_lock() { return m_main_vga_lock; }
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RefPtr<Graphics::Console> console() const { return m_console; }
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void deactivate_graphical_mode();
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void activate_graphical_mode();
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private:
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NonnullRefPtrVector<GraphicsDevice> m_graphics_devices;
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NonnullOwnPtr<Region> m_vga_font_region;
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RefPtr<Graphics::Console> m_console;
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// Note: there could be multiple VGA adapters, but only one can operate in VGA mode
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RefPtr<VGACompatibleAdapter> m_vga_adapter;
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unsigned m_current_minor_number { 0 };
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const bool m_framebuffer_devices_allowed;
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SpinLock<u8> m_main_vga_lock;
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};
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}
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