chafa-rust (wip)

Rust bindings for chafa, a terminal graphics library:

With chafa, you can now view very, very reasonable approximations of pictures and animations in the comfort of your favorite terminal emulator. The power of ANSI X3.64 compels you!

Demo

Using a convenience function: examples/image2ansi.rs

use chafa::image2ansi;

fn main() {
    let output = image2ansi("examples/test.png", (33, 16)).unwrap();
    println!("{}", output);
}

Before	After

Or using the normal chafa API: examples/demo.rs

use chafa::{Canvas, Config, PixelType, SymbolMap, Symbols};

fn main() {
    // see https://hpjansson.org/chafa/ref/chafa-using.html
 
    const PIX_WIDTH : i32 = 3;
    const PIX_HEIGHT : i32 = 3;
    const N_CHANNELS : i32 = 4;
    let pixels : [u8; (PIX_WIDTH * PIX_HEIGHT * N_CHANNELS) as usize] = [
        0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff,
        0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff,
        0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff
    ];

    let symbol_map = SymbolMap::new();
    symbol_map.add_by_tags(Symbols::ALL);

    let config = Config::new();
    config.set_geometry(23, 12);
    config.set_symbol_map(symbol_map);

    let canvas = Canvas::new(config);

    canvas.draw_all_pixels(PixelType::RGBA8_UNASSOCIATED,
                           &pixels,
                           PIX_WIDTH,
                           PIX_HEIGHT,
                           PIX_WIDTH * N_CHANNELS);

    let output : String = canvas.build_ansi();

    println!("{}", output);
}

Build

• Uses rustc --version 1.65.0

• Dependencies: chafa and glib must be installed. See the chafa installation page, the compilation page, and my notes at chafa-sys/build.rs::main.

• git clone https://github.com/wong-justin/chafa-rust.git

• cd chafa-rust && cargo build

• Confirm that the example works by running cargo test

Docs

See the chafa C API.

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Note: I'm new to both chafa and Rust's FFI binding process, so things may be a bit broken.

Looking for help: configuring builds + compilation, especially for Windows and Mac