serenity/Kernel/Graphics/GraphicsDevice.h

/*
 * Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <AK/String.h>
#include <AK/Types.h>
#include <Kernel/Bus/PCI/Definitions.h>
#include <Kernel/Devices/BlockDevice.h>
#include <Kernel/PhysicalAddress.h>

namespace Kernel {
class GraphicsDevice : public RefCounted<GraphicsDevice> {
public:
    enum class Type {
        VGACompatible,
        Bochs,
        SVGA,
        Raw
    };
    virtual ~GraphicsDevice() = default;
    virtual void initialize_framebuffer_devices() = 0;
    virtual Type type() const = 0;
    PCI::Address device_pci_address() const { return m_pci_address; }
    virtual void enable_consoles() = 0;
    virtual void disable_consoles() = 0;
    bool consoles_enabled() const { return m_consoles_enabled; }
    virtual bool framebuffer_devices_initialized() const = 0;

    virtual bool modesetting_capable() const = 0;
    virtual bool double_framebuffering_capable() const = 0;

    virtual bool try_to_set_resolution(size_t output_port_index, size_t width, size_t height) = 0;
    virtual bool set_y_offset(size_t output_port_index, size_t y) = 0;

protected:
    GraphicsDevice(PCI::Address pci_address)
        : m_pci_address(pci_address)
    {
    }

    const PCI::Address m_pci_address;
    bool m_consoles_enabled { false };
};

}