dnutiu/chip8-rust
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improve terminal display & emulation fluidity

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This commit is contained in:
Denis-Cosmin Nutiu 2025-01-05 00:48:42 +02:00
parent 652b11cd04
commit 6b2a6e288d
2 changed files with 26 additions and 31 deletions
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55
src/display.rs
View file

@ -1,7 +1,5 @@
use ratatui::layout::Rect;
use ratatui::style::Color;
use ratatui::symbols::Marker;
use ratatui::widgets::canvas::Canvas;
use ratatui::style::{Style, Stylize};
use ratatui::widgets::{Block, Borders};
use ratatui::DefaultTerminal;
@ -71,37 +69,34 @@ impl Display for RatatuiDisplay {
fn render(&mut self, display_data: &[bool; DISPLAY_WIDTH * DISPLAY_HEIGHT]) {
self.terminal
.draw(|frame| {
let canvas = Canvas::default()
.block(
Block::default()
.title("Chip8 Emulator by nuculabs.dev")
.borders(Borders::ALL),
)
.marker(Marker::Braille)
.paint(|ctx| {
for row in 0..DISPLAY_HEIGHT {
for column in 0..DISPLAY_WIDTH {
if display_data[row * DISPLAY_WIDTH + column] {
ctx.draw(&ratatui::widgets::canvas::Rectangle {
x: column as f64,
y: DISPLAY_HEIGHT as f64 - row as f64,
width: 1.0,
height: 1.0,
color: Color::White,
});
}
}
}
})
.x_bounds([0.0, DISPLAY_WIDTH as f64])
.y_bounds([0.0, DISPLAY_HEIGHT as f64]);
// Render the canvas widget
frame.render_widget(
canvas,
Rect::new(0, 0, DISPLAY_WIDTH as u16, DISPLAY_HEIGHT as u16),
Block::default()
.title("Chip8 Emulator by nuculabs.dev")
.borders(Borders::ALL),
Rect::new(
0,
0,
(DISPLAY_WIDTH * 2 + 2) as u16,
(DISPLAY_HEIGHT * 2) as u16,
),
);
display_data.iter().enumerate().for_each(|(index, pixel)| {
if *pixel {
let x = (index % DISPLAY_WIDTH) as u16;
let y = (index / DISPLAY_WIDTH) as u16;
let area = Rect::new(x * 2, y, 2, 1);
let block = Block::default().style(Style::new().on_white());
frame.render_widget(block, area);
}
});
})
.expect("failed to draw");
}
}
impl Drop for RatatuiDisplay {
fn drop(&mut self) {
ratatui::restore();
}
}

2
src/emulator.rs
View file

@ -146,7 +146,7 @@ where
// Handle sound and delay timer.
self.handle_timers();
for _ in 0..=7 {
for _ in 0..=14 {
// fetch instruction & decode it
let instruction = self.fetch_instruction()?;
self.program_counter += 2;