RE: status of hmtx transform proposal?

Hi Cosimo,

I believe the WG agreed to use two reserved bits as an additional transform version number for future extensibility. We also agreed that if we confirm the ‘hmtx’ transform to yield about 1% gains on average (as your data shown) we will go ahead and implement it into the spec. This is something we plan to discuss tomorrow during the WG telcon (https://www.w3.org/Fonts/WG/track/actions/open, action 176).

Thank you,
Vlad


From: Cosimo Lupo [mailto:cosimo.lupo@daltonmaag.com]
Sent: Tuesday, July 28, 2015 5:02 AM
To: public-webfonts-wg@w3.org
Subject: status of hmtx transform proposal?

Hello,

I just wanted to know what is the situation of the hmtx transform that was proposed a few months ago.

I remember Jonathan Kew proposed to use some of the reserved bits in the WOFF2 directory entries to specify a version number that would indicate the kind of transform to apply for each table.

Are you planning to proceed along these lines and add this to the WOFF2 spec?

Thank you,

All best,

—
Cosimo Lupo