mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 12:28:12 +00:00
3271c115e2
Previously we'd blit every pixel in every window that intersected any dirty rect to the back buffer. With this patch, we limit ourselves to blitting the pixels inside the actual dirty rects. There's still a lot of optimizations to make in this code.
107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
#pragma once
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#include <AK/AKString.h>
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#include <AK/Types.h>
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#include <AK/Vector.h>
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#include <SharedGraphics/GraphicsBitmap.h>
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#include <SharedGraphics/Rect.h>
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class Font;
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class Terminal {
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public:
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Terminal();
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~Terminal();
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void create_window();
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void paint();
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void on_char(byte);
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void set_in_active_window(bool);
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private:
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Font& font() { return *m_font; }
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void scroll_up();
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void set_cursor(unsigned row, unsigned column);
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void put_character_at(unsigned row, unsigned column, byte ch);
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void invalidate_cursor();
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void invalidate_window(const Rect& = Rect());
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void escape$A(const Vector<unsigned>&);
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void escape$D(const Vector<unsigned>&);
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void escape$H(const Vector<unsigned>&);
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void escape$J(const Vector<unsigned>&);
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void escape$m(const Vector<unsigned>&);
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void escape$s(const Vector<unsigned>&);
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void escape$u(const Vector<unsigned>&);
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void clear();
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void set_size(word columns, word rows);
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word columns() const { return m_columns; }
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word rows() const { return m_rows; }
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Rect glyph_rect(word row, word column);
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Rect row_rect(word row);
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struct Attribute {
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Attribute() { reset(); }
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void reset()
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{
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foreground_color = 7;
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background_color = 0;
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bold = false;
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dirty = true;
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}
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unsigned foreground_color : 4;
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unsigned background_color : 4;
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bool bold : 1;
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bool dirty : 1;
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};
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byte* m_buffer { nullptr };
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Attribute* m_attributes { nullptr };
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bool* m_row_needs_invalidation { nullptr };
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word m_columns { 0 };
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word m_rows { 0 };
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byte m_cursor_row { 0 };
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byte m_cursor_column { 0 };
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byte m_saved_cursor_row { 0 };
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byte m_saved_cursor_column { 0 };
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Attribute m_current_attribute;
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Attribute& attribute_at(word row, word column);
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void execute_escape_sequence(byte final);
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enum EscapeState {
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Normal,
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ExpectBracket,
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ExpectParameter,
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ExpectIntermediate,
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ExpectFinal,
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};
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EscapeState m_escape_state { Normal };
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Vector<byte> m_parameters;
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Vector<byte> m_intermediates;
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byte* m_horizontal_tabs { nullptr };
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bool m_belling { false };
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int m_window_id { 0 };
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RetainPtr<GraphicsBitmap> m_backing;
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int m_pixel_width { 0 };
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int m_pixel_height { 0 };
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int m_rows_to_scroll_backing_store { 0 };
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int m_inset { 2 };
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int m_line_spacing { 4 };
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int m_line_height { 0 };
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bool m_in_active_window { false };
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bool m_need_full_invalidation { false };
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RetainPtr<Font> m_font;
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};
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