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Images: the web app keeps the decoder's 512 MB limit 

#677 lets one image decode take up to 2 GB, so large print sheets open on the
desktop. wasm32 can address only 4 GB and aborts when an allocation fails, so
the web app keeps the decoder's default 512 MB and reports larger images as an
error instead.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
bflatastic 2026-10-09 11:43:59 +07:00
parent 2b91d7effd
commit 7bd496b1e2
1 changed files with 3 additions and 2 deletions
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5
crates/engine/src/cmd/fileio/load.rs
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@ -283,8 +283,9 @@ pub(super) fn new_from_template(s: &mut Session, p: &Value) -> Result<Value> {
}
/// The most memory decoding one image may take: a 60 in print sheet at 300 ppi (18000 × 6600 px)
/// is ~475 MB as RGBA, past the decoder's 512 MB default once it is converted.
const MAX_RASTER_ALLOC: u64 = 2 << 30;
/// is ~475 MB as RGBA, past the decoder's 512 MB default once it is converted. The web app keeps
/// that default: wasm32 has 4 GB to address and aborts when an allocation fails.
const MAX_RASTER_ALLOC: u64 = if cfg!(target_arch = "wasm32") { 512 << 20 } else { 2 << 30 };
/// Decode an image's header (and, for formats stored as PNG, its pixels). CMYK TIFFs are kept as
/// they are, with their ink amounts ([`ImageBlob::cmyk`]); CMYK TIFFs with an alpha channel, which