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feat: pack large artworks in Artes avulsas from a streamed copy
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Artes avulsas decoded every file whole, and the packing decoded each one
again on every repaint, so a large artwork failed to load. A PNG over 150
MB is now measured from its header (pixel size, so DPI and grade stay
exact) and packed from a 1200-pixel copy read as a stream, with progress on
its card; every artwork's image is loaded once and reused by the packing.
A large JPG or WebP asks for a PNG, and the grade card no longer calls a
file unreadable while it is still being read.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Cauê Faleiros
2026-09-29 16:02:35 -03:00
parent 64e47ee481
commit f4aacb5776
4 changed files with 51 additions and 4 deletions
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3
web/site-quality.js
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@@ -63,6 +63,9 @@ function avaliar(){
return {pronto:true};
}
if(!artes.length) return {pronto:false, falta:'Arraste suas artes para começar.'};
if(artes.some(a=>a.lendo!=null)) return {pronto:false, falta:'Gerando a prévia das artes grandes…'};
if(artes.some(a=>a.decodeError==='grande'))
return {pronto:false, falta:'Uma arte grande está em JPG ou WebP. Exporte-a em PNG para montar a folha.'};
if(artes.some(a=>a.decodeError || !a.src || !(a.px>0) || !(a.py>0)))
return {pronto:false, falta:'Não conseguimos ler uma das imagens. Exporte-a novamente em PNG ou JPG antes de continuar.'};
if(artes.some(a=>!Number.isFinite(a.cm) || a.cm>larguraFilme()))