[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [ft-devel] Clean-up of af_loader_load_glyph()

From: Werner LEMBERG
Subject: Re: [ft-devel] Clean-up of af_loader_load_glyph()
Date: Mon, 07 Nov 2016 06:02:47 +0100 (CET)

>> No.  It's not related.  I just want to point you to the warper that
>> does try to micro-optimize the horizontal positioning of a glyph.
> Okay, but my question is, would this "subpixel hinting support" in
> the AH be relevant to LIGHT (Y-axis only) or NORMAL (X+Y-axis) mode?
> My guess would be no.  LIGHT doesn't touch the X-axis, NORMAL by
> nature adjusts to pixel integers.

I guess the idea was to lift the integer alignment restriction for the
NORMAL mode (as you call it).

> By the way, I found that the warper modifies advance widths. I guess
> you could compensate for that by twiddling the scaler deltas?

Maybe, yes.

> Well, wouldn't it be easier to stop rounding to pixels integers
> instead if the hinting doesn't change the advance widths anyway?

This is something to investigate.  On the other hand, you can already
use `linearHoriAdvance' for subpixel positioning.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]