Module vga 

Framebuffer text console (Limine framebuffer + PSF font). https://en.wikipedia.org/wiki/PC_Screen_Font

Keeps the existing vga_print! / vga_println! API but renders text into the graphical framebuffer when available. Falls back to serial otherwise.

Module structure

• types : Color, RgbColor, UiTheme, layout types, terminal widget
• font : PSF font parsing (PSF1/PSF2 + unicode map)
• writer : VgaWriter struct: glyph rendering, scrollback, cursors, double-buffering, dirty-rect tracking, present
• canvas : Canvas convenience drawing API
• api : Public free functions, VGA_WRITER static, init()
• panic_screen : Lock-free panic framebuffer drawing
• debug_overlay : Live debug overlay (bypasses VGA_WRITER)
• status_line : Status bar kthread and rendering

Re-exports

pub use crate::framebuffer::RgbColor;

Modules

api 🔒

Public VGA API surface : free functions, the global VGA_WRITER, and the vga_print! / vga_println! macros that the rest of the kernel uses to talk to the framebuffer console.

canvas 🔒

Canvas convenience drawing API : a thin wrapper around VgaWriter for drawing primitives.

cursor 🔒

Cursor manager for the framebuffer terminal.

debug_overlay 🔒

font 🔒

PSF (PC Screen Font) font parsing.

panic_screen 🔒

Panic-safe framebuffer drawing.

scrollback 🔒

Scrollback buffer for the framebuffer terminal.

status_line 🔒

types 🔒

VGA color types, UI theme/layout types, and terminal widget types.

writer 🔒

Structs

Canvas

FramebufferInfo

RenderStats

SpriteRgba

TerminalWidget

TextMetrics

TextOptions

UiDockLayout

UiLabel

UiPanel

UiProgressBar

UiRect

UiTable

UiTheme

VgaWriter

Enums

Color

VGA colors mapped to RGB for text rendering.

DockEdge

TextAlign

UiScale

Statics

VGA_WRITER

Functions

begin_frame

Performs the begin frame operation.

blit_rgb

Performs the blit rgb operation.

blit_rgb24

Performs the blit rgb24 operation.

blit_rgba

Performs the blit rgba operation.

blit_sprite_rgba

Performs the blit sprite rgba operation.

clear_selection

Performs the clear selection operation.

double_buffer_mode

Performs the double buffer mode operation.

draw_line

Performs the draw line operation.

draw_pixel

Performs the draw pixel operation.

draw_pixel_alpha

Performs the draw pixel alpha operation.

draw_rect

Performs the draw rect operation.

draw_strata_stack

Performs the draw strata stack operation.

draw_system_status_line

Performs the draw system status line operation.

draw_text

Performs the draw text operation.

draw_text_at

Performs the draw text at operation.

draw_text_cursor

Performs the draw text cursor operation.

end_frame

Performs the end frame operation.

end_selection

Performs the end selection operation.

fill_rect

Performs the fill rect operation.

fill_rect_alpha

Performs the fill rect alpha operation.

framebuffer_info

Performs the framebuffer info operation.

get_clipboard_text

Returns clipboard text.

get_text_cursor

Returns text cursor.

glyph_size

Performs the glyph size operation.

height

Performs the height operation.

hide_mouse_cursor

Performs the hide mouse cursor operation.

hide_text_cursor

Performs the hide text cursor operation.

init

Performs the init operation.

init_panic_fb_globals

Initialise the panic-screen framebuffer globals. Must be called once from vga::init() after configure() succeeds.

is_available

Returns whether available.

maybe_refresh_system_status_line

Performs the maybe refresh system status line operation.

measure_text

Performs the measure text operation.

panic_draw_direct

Draw the full panic screen directly to the framebuffer (no locking).

present

Performs the present operation.

render_stats

Returns lightweight render metrics for profiling.

reset_clip_rect

Performs the reset clip rect operation.

screen_size

Performs the screen size operation.

scroll_to_live

Return immediately to the live (bottom) view.

scroll_view_down

Scroll the console view down (forward, toward live output) by lines lines.

scroll_view_up

Scroll the console view up (backward in history) by lines lines.

scrollbar_click

Handle a click at framebuffer pixel (px_x, px_y). If the click lands on the scrollbar, jump the view accordingly.

scrollbar_drag_to

Drag the scrollbar to a given Y pixel coordinate.

scrollbar_hit_test

Returns true if (px_x, px_y) falls within the scrollbar strip.

set_clip_rect

Sets clip rect.

set_double_buffer_mode

Sets double buffer mode.

set_status_hostname

Sets status hostname.

set_status_ip

Sets status ip.

set_text_color

Sets text color.

set_text_cursor

Sets text cursor.

set_ui_scale

Sets ui scale.

start_selection

Starts selection.

status_line_task_main

Performs the status line task main operation.

text_cols

Performs the text cols operation.

text_rows

Performs the text rows operation.

try_with_writer

Performs the try with writer operation.

ui_clear

Performs the ui clear operation.

ui_draw_label

Performs the ui draw label operation.

ui_draw_panel

Performs the ui draw panel operation.

ui_draw_panel_widget

Performs the ui draw panel widget operation.

ui_draw_progress_bar

Performs the ui draw progress bar operation.

ui_draw_status_bar

Performs the ui draw status bar operation.

ui_draw_table

Performs the ui draw table operation.

ui_layout_screen

Performs the ui layout screen operation.

ui_scale

Performs the ui scale operation.

ui_scale_px

Performs the ui scale px operation.

update_mouse_cursor

Updates mouse cursor.

update_selection

Updates selection.

vga_debug_init

Initialise or re-initialise the live debug writer’s geometry. Called automatically from vga::init().

vga_debug_write

Write a string directly to the VGA framebuffer in real time.

vga_debug_writeln

Write a newline-terminated line to the live VGA debug output.

width

Performs the width operation.

with_writer

Performs the with writer operation.

write_char

Writes one console character to the framebuffer console.

write_text

Writes raw console text to the framebuffer console in a single writer batch.