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Add render_atlas.rs example

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Erin 8 years ago
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1 changed files with 37 additions and 0 deletions
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      textium/examples/render_atlas.rs

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textium/examples/render_atlas.rs View File

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extern crate textium;
extern crate rusttype;
use rusttype::{FontCollection};
/// An array of all of the ascii printable characters.
pub const ASCII: &'static [char] = &[
' ', '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.', '/',
':', ';', '<', '=', '>', '?', '[', ']', '\\', '|', '{', '}', '^', '~', '_', '@',
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E',
'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
'V', 'W', 'X', 'Y', 'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
];
fn main() {
let font_data = include_bytes!("Gudea-Regular.ttf");
let font = FontCollection::from_bytes(font_data as &[u8])
.into_font().unwrap();
let font = textium::Font::new(font);
let chrs = ASCII.iter().cloned();
let (atlas, bitmap, line_height) = font.make_atlas(chrs, 40.0, 1, 64, 64);
// println!("{:?}", atlas.glyph_data);
for line in bitmap.lines() {
print!("{:03} ", line.len());
for &pixel in line {
if pixel == 0 {
print!(" ");
} else {
print!("#");
}
}
println!("");
}
}

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