Crate ufb

ufb

Just quickly show or draw a framebuffer in a window, nothing else! Why use ufb:

• Uses hardware-acceleration via OpenGL.
• To quickly debug image or framebuffer output, instead of writing to files.
• Supports L8, La8, Rgb8 and Rgba8 &[u8] buffers.
• Fast to build.
• Doesn’t need vulkan drivers.
• Minimal interface.

Usage

[dependencies]
ufb = "0.2"

use ufb::{ColorDepth, Window};

const WIDTH: u32 = 768;
const HEIGHT: u32 = 768;

let mut win = Window::new(WIDTH, HEIGHT, ColorDepth::Rgb8, "My Framebuffer").unwrap();
for (iter, pixel) in win.get_frame().chunks_exact_mut(3).enumerate() {
    let x = iter % WIDTH as usize;
    let y = iter / WIDTH as usize;
    let val = x ^ y;
    let hex = format!("{:06x}", val);
    let r = u8::from_str_radix(&hex[0..2], 16).unwrap();
    let g = u8::from_str_radix(&hex[2..4], 16).unwrap();
    let b = u8::from_str_radix(&hex[4..6], 16).unwrap();
    pixel.copy_from_slice(&[r, g, b]);
}
win.show();

Using the image crate:

use ufb::{ColorDepth, Window};
use image::GenericImageView;

let img = image::open("screenshots/image.jpg").unwrap();
let (w, h) = img.dimensions();
let mut win = Window::new(w, h, ColorDepth::Rgba8, "image.jpg").unwrap();
win.get_frame().copy_from_slice(&img.to_rgba8());
win.show();

Structs

Window

Wrapper around a glfw window

Enums

ColorDepth

Supported color depths

UfbError

ufb error types

UfbErrorKind

ufb error kinds