mirror of
https://github.com/RGBCube/serenity
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87f8f892d8
If we tried to change the resolution before of this patch, we triggered a kernel crash due to mmaping the framebuffer device again. Therefore, on mmaping of the framebuffer device, we create an entire new set of VMObjects and Regions for the new settings. Then, when we change the resolution, the framebuffersconsole needs to be updated with the new resolution and also to be refreshed with the new settings. To ensure we handle both shrinking of the resolution and growth of it, we only copy the right amount of available data from the cells Region.
82 lines
2.2 KiB
C++
82 lines
2.2 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) const = 0;
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virtual void write(size_t x, size_t y, char ch, Color background, Color foreground) const = 0;
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virtual void write(size_t x, size_t y, String, Color background, Color foreground) const = 0;
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virtual void write(size_t x, size_t y, char ch) const = 0;
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virtual void write(size_t x, size_t y, String) const = 0;
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virtual void write(char ch) const = 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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