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Dither images to correct width

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This commit is contained in:
Joscha 2025-03-01 14:18:52 +01:00
parent 5cafe3fe2b
commit 6112a8c02f
2 changed files with 69 additions and 7 deletions
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18
showbits-thermal-printer/src/documents/lib.typ
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@ -26,8 +26,18 @@
#import plugin("plugin.wasm") as p
#let dither(path) = {
let bytes = read(path, encoding: none)
let dithered = p.dither(bytes)
image(dithered)
#let _length_to_bytes(len) = {
let len = len.pt()
let n = if len > 10000 { -1 } else { int(len) }
n.to-bytes(size: 8)
}
#let dither(path) = layout(size => {
let bytes = read(path, encoding: none)
let dithered = p.dither(
bytes,
_length_to_bytes(size.width),
_length_to_bytes(size.height),
)
image(dithered)
})