Brandon Thomas ffd811d679 feat(save): File › Save keeps a JPEG's quality and a WebP's lossy/lossless encoding (#2399) ... Opening a JPEG now estimates the quality it was saved at from its quantisation tables (the Annex K tables of ITU-T T.81 scaled by the IJG quality curve; exact for such tables, the closest fit otherwise). Opening a WebP records whether it is lossless (VP8L) or lossy (VP8), and a lossy one's quality from its base quantiser index. The settings live on the document (`Document::file_encoding`, saved in .pcraft) and a save that asks for no quality writes the file back the same way, as Photoshop's Save does: File › Save, Save As and Save a Copy start there instead of the fixed codec defaults (quality 90, WebP always lossless). An explicit quality still wins; new documents and other formats keep the defaults. Hostile or truncated DQT/VP8 headers give no estimate, never a panic. Refs #2399 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>		2026-10-12 04:13:51 -04:00
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src	feat(save): File › Save keeps a JPEG's quality and a WebP's lossy/lossless encoding (#2399)	2026-10-12 04:13:51 -04:00
Cargo.toml	one-shot	2026-09-30 05:02:08 -04:00