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Use white instead of black for serial console text, add print macros

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This commit is contained in:
csd4ni3l
2026-03-14 16:51:39 +01:00
parent 7a938283f7
commit 8701b83f57
2 changed files with 44 additions and 21 deletions
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17
kernel/src/arch/serial.rs
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@@ -2,9 +2,22 @@ use crate::driver::graphics::framebuffer::{with_framebuffer, Framebuffer};
use crate::driver::graphics::font_render::render_text;
use crate::driver::graphics::base::rgb;
use spin::Mutex;
use core::fmt::{self, Write};
const DEFAULT_FONT_SIZE: usize = 3;
pub struct ConsoleWriter<'a> {
pub fb: &'a mut Framebuffer,
pub console: &'a mut SerialConsole,
}
impl Write for ConsoleWriter<'_> {
fn write_str(&mut self, s: &str) -> fmt::Result {
self.console.render_text(self.fb, s);
Ok(())
}
}
pub struct SerialConsole {
start_x: usize,
current_y: usize
@@ -19,8 +32,8 @@ impl SerialConsole {
}
pub fn render_text(&mut self, fb: &mut Framebuffer, text: &str) {
self.current_y = render_text(fb, self.start_x - ((text.len() - text.matches('\n').count()) * DEFAULT_FONT_SIZE * 4), self.current_y, text, DEFAULT_FONT_SIZE, rgb(0, 0, 0));
self.current_y = render_text(fb, self.start_x - ((text.len() - text.matches('\n').count()) * DEFAULT_FONT_SIZE * 4), self.current_y, "\n", DEFAULT_FONT_SIZE, rgb(0, 0, 0)); // add a newline
self.current_y = render_text(fb, self.start_x - ((text.len() - text.matches('\n').count()) * DEFAULT_FONT_SIZE * 4), self.current_y, text, DEFAULT_FONT_SIZE, rgb(255, 255, 255));
self.current_y = render_text(fb, self.start_x - ((text.len() - text.matches('\n').count()) * DEFAULT_FONT_SIZE * 4), self.current_y, "\n", DEFAULT_FONT_SIZE, rgb(255, 255, 255)); // add a newline
}
pub fn clear(&mut self, start_y: usize) {

48
kernel/src/main.rs
View File

@@ -2,6 +2,7 @@
#![no_main]
use core::arch::asm;
use core::fmt::Write;
use limine::BaseRevision;
use limine::request::{FramebufferRequest, RequestsEndMarker, RequestsStartMarker};
@@ -10,7 +11,7 @@ pub mod driver;
pub mod arch;
use spin::Mutex;
use crate::arch::serial::{SerialConsole, init_serial_console, with_serial_console};
use crate::arch::serial::{ConsoleWriter, SerialConsole, init_serial_console, with_serial_console};
use crate::driver::graphics::font_render::render_text;
use crate::driver::graphics::primitives::{circle_filled, circle_outline, rectangle_filled, rectangle_outline, triangle_outline};
use crate::driver::graphics::base::rgb;
@@ -36,26 +37,32 @@ static _START_MARKER: RequestsStartMarker = RequestsStartMarker::new();
#[unsafe(link_section = ".requests_end_marker")]
static _END_MARKER: RequestsEndMarker = RequestsEndMarker::new();
// #[macro_export]
// macro_rules! print {
// ($($arg:tt)*) => (with_framebuffer(|mut fb|{
// with_serial_console(|serial_console| {
// serial_console.render_text(&mut fb, format_args!($($arg)*));
// });
// }));
// }
#[macro_export]
macro_rules! print {
($($arg:tt)*) => {
$crate::_print(core::format_args!($($arg)*))
};
}
// #[macro_export]
// macro_rules! println {
// () => ($crate::print!("\n"));
// ($($arg:tt)*) => ($crate::print!("{}\n", format_args!($($arg)*)));
// }
#[macro_export]
macro_rules! println {
() => {
$crate::_print(core::format_args!("\n"))
};
($($arg:tt)*) => {
$crate::_print(core::format_args!("{}\n", core::format_args!($($arg)*)))
};
}
// #[doc(hidden)]
// pub fn _print(args: fmt::Arguments) {
// use core::fmt::Write;
// WRITER.lock().write_fmt(args).unwrap();
// }
#[doc(hidden)]
pub fn _print(args: core::fmt::Arguments) {
with_framebuffer(|fb| {
with_serial_console(|console| {
let mut writer = ConsoleWriter { fb, console };
let _ = writer.write_fmt(args);
});
});
}
#[unsafe(no_mangle)]
unsafe extern "C" fn kmain() -> ! {
@@ -95,6 +102,9 @@ fn rust_panic(_info: &core::panic::PanicInfo) -> ! {
serial_console.render_text(&mut fb, "Message:");
serial_console.render_text(&mut fb, message);
}
crate::println!("Kernel Panic! :C");
crate::print!("Message: ");
crate::println!("{}", _info);
});
});