servicepoint/servicepoint-simulator
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fix out of bounds read

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This commit is contained in:
Vinzenz Schroeter 2024-10-12 20:40:11 +02:00
parent 9ea79a370f
commit 43b096bd69
1 changed files with 2 additions and 2 deletions
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4
src/font.rs
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@ -10,7 +10,7 @@ use servicepoint::{Grid, PixelGrid, TILE_SIZE};
const DEFAULT_FONT_FILE: &[u8] = include_bytes!("../Web437_IBM_BIOS.woff");
pub struct BitmapFont {
bitmaps: [PixelGrid; u8::MAX as usize],
bitmaps: [PixelGrid; u8::MAX as usize + 1],
}
impl BitmapFont {
@ -18,7 +18,7 @@ impl BitmapFont {
let mut bitmaps =
core::array::from_fn(|_| PixelGrid::new(TILE_SIZE, TILE_SIZE));
for char_code in u8::MIN..u8::MAX {
for char_code in u8::MIN..=u8::MAX {
let char = char_code as char;
let glyph_id = match font.glyph_for_char(char) {
None => continue,