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34e9fa4d3b
Currently, Kernel::Graphics::FramebufferConsole is written assuming that the underlying framebuffer memory exists in physically contiguous memory. There are a bunch of framebuffer devices that would need to use the components of FramebufferConsole (in particular access to the kernel bitmap font rendering logic). To reduce code duplication, framebuffer console has been split into two parts, the abstract GenericFramebufferConsole class which does the rendering, and the ContiguousFramebufferConsole class which contains all logic related to managing the underling vm object. Also, a new flush method has been added to the class, to support devices that require an extra flush step to render.
80 lines
2 KiB
C++
80 lines
2 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/RefCounted.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <Kernel/Graphics/GraphicsDevice.h>
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namespace Kernel::Graphics {
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class Console : public RefCounted<Console> {
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public:
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// Stanadard VGA text mode colors
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enum Color : u8 {
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Black = 0,
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Blue,
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Green,
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Cyan,
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Red,
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Magenta,
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Brown,
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LightGray,
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DarkGray,
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BrightBlue,
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BrightGreen,
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BrightCyan,
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BrightRed,
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BrightMagenta,
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Yellow,
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White,
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};
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public:
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size_t width() const { return m_width; }
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size_t height() const { return m_height; }
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size_t pitch() const { return bytes_per_base_glyph() * width(); }
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virtual size_t max_column() const { return m_width; }
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virtual size_t max_row() const { return m_height; }
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virtual size_t bytes_per_base_glyph() const = 0;
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virtual size_t chars_per_line() const = 0;
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virtual void enable() = 0;
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virtual void disable() = 0;
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virtual bool is_hardware_paged_capable() const = 0;
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virtual bool has_hardware_cursor() const = 0;
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virtual void set_cursor(size_t x, size_t y) = 0;
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virtual void hide_cursor() = 0;
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virtual void show_cursor() = 0;
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virtual void clear(size_t x, size_t y, size_t length) = 0;
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virtual void write(size_t x, size_t y, char ch, Color background, Color foreground, bool critical = false) = 0;
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virtual void write(size_t x, size_t y, char ch, bool critical = false) = 0;
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virtual void write(char ch, bool critical = false) = 0;
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virtual ~Console() { }
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protected:
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Console(size_t width, size_t height)
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: m_width(width)
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, m_height(height)
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{
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m_enabled.store(true);
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}
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Atomic<bool> m_enabled;
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Color m_default_foreground_color { Color::White };
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Color m_default_background_color { Color::Black };
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size_t m_width;
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size_t m_height;
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mutable size_t m_x { 0 };
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mutable size_t m_y { 0 };
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};
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}
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