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Store font data more compressed

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This commit is contained in:
Gwilym Kuiper 2022-04-23 15:42:08 +01:00
parent 1b71ef6473
commit fb197d3e79
2 changed files with 19 additions and 3 deletions
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16
agb-image-converter/src/font_loader.rs
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@ -33,10 +33,24 @@ pub fn load_font(font_data: &[u8], pixels_per_em: f32) -> TokenStream {
let width = metrics.width; let width = metrics.width;
let height = metrics.height; let height = metrics.height;
let rendered = bitmap
.chunks(8)
.map(|chunk| {
let mut output = 0u8;
for (i, &value) in chunk.iter().enumerate() {
if value > 100 {
output |= 1 << i;
}
}
output
})
.collect();
LetterData { LetterData {
width, width,
height, height,
rendered: bitmap, rendered,
xmin: metrics.xmin, xmin: metrics.xmin,
ymin: metrics.ymin, ymin: metrics.ymin,
advance_width: metrics.advance_width, advance_width: metrics.advance_width,

6
agb/src/display/font.rs
View file

@ -154,9 +154,11 @@ impl<'a> TextRenderer<'a> {
for letter_x in letter_x_start..letter_x_end { for letter_x in letter_x_start..letter_x_end {
let x = letter_x - letter_offset_x; let x = letter_x - letter_offset_x;
let px = letter.data[(x + y * letter.width as i32) as usize]; let pos = x + y * letter.width as i32;
let px_line = letter.data[(pos / 8) as usize];
let px = (px_line >> (pos & 7)) & 1;
if px > 100 { if px != 0 {
masks[(letter_y & 7) as usize] |= masks[(letter_y & 7) as usize] |=
(foreground_colour as u32) << ((letter_x & 7) * 4); (foreground_colour as u32) << ((letter_x & 7) * 4);
zero = false; zero = false;