Re: [ft-devel] Experimental: v38 interpreter with minimal backwards compatibility mode and linear advance widths

[Nikolaus Waxweiler]

Patch is almost ready for for mainlining.

The new lean interpreter can now coexist with the Infinality code. Both 
are gated by macros: TT_CONFIG_OPTION_SUBPIXEL_HINTING for the 
Infinality code, TT_CONFIG_OPTION_SUBPIXEL_HINTING_LEAN for the new 
code. You can define none, one of them or both. The new code is on by 
default.

@Werner: I just now remembered that you sent me proofed patches but 
forgot to base these patches on them... Aside, I defined a new public 
property "hinting-engine" for the TT driver, akin to the CFF driver. I 
don't really feel comfortable doing that as the Infinality code may be 
removed in the future and I'm bound to have overlooked a combinatorial 
corner case with "interpreter-version". A patch for ftview etc. may 
follow at a later point. And yes, it turned into an ifdef orgy.

0001-Prepare-landing-of-v38-bytecode-interpreter.patch
Description: Text Data

0002-Implement-v38-bytecode-interpreter.patch
Description: Text Data

0003-Coexist-with-Infinality-code.-Engine-can-be-switched.patch
Description: Text Data