Actually Adobe/Mozilla OT-SVG fonts do *not* return EM, EM but something like
a few hundred, a few hundred.
The bug fix in freetype2-demos I submitted was that, if it comes out as 1,1, it
means EM, EM (1024, 2048 or there abouts).
Search for "memory exhaustion" in the freetype2-demos commit log, as I
suggested. It isn't that hard to find.
On Thursday, 6 July 2023 at 06:36:49 GMT+8, Hin-Tak Leung
<ht...@users.sourceforge.net> wrote:
It is the result from the "intrinsic dimensions" routine - (there is a
routine of that sort of name in both rsvg and skia). It returns some larger
numbers, EM,EM I think for Adobe/Mozilla OT-SVG fonts, but 1,1 from rsvg and
0,0 from skia for Google-origin OT-SVG fonts.
Clear enough?
On Wednesday, 5 July 2023 at 22:00:54 GMT+8, Cosimo Lupo
<cos...@anthrotype.com> wrote:
I have no idea what you're talking about. Please, clarify what this difference
is supposed to be, otherwise this is just spreading rumors.
On Wed, Jul 5, 2023 at 2:33 PM Hin-Tak Leung <ht...@users.sourceforge.net>
wrote:
On Wednesday, 5 July 2023 at 20:49:42 GMT+8, Hin-Tak Leung
<ht...@users.sourceforge.net> wrote:
> On Wednesday, 5 July 2023 at 03:24:11 GMT+8, Cosimo Lupo
<cos...@anthrotype.com> wrote:
> > Hin-Tak, what do you mean by "Google OT-SVG fonts"? They're only one
> > OT-SVG format.
> Yes and no. I don't have that many OT-SVG fonts - 3 from Adobe/Mozilla
> sources, and the rest (more than 2 and less than 10) from Google Fonts. The
> two sets behave differently, and get processed by two different code paths in
> freetype2-demos. The Google set triggers the memory exhaustion bug I fixed in
> freetype2-demos about a month ago; the Adobe/Mozilla set does not.
> That was all part of the activities around the time with the Google font SVG
> subsetting bug. Look at the freetype2-demo log around the same time you
> investigated and fixed the subletting bug.
Actually having looked at Skia and skia-python's SVG related functionality last
night, Skia also follows two slightly different code paths for the two "types"
of OT-SVG fonts. There will be a small "if x else ..." clause separating the
two in Skia related code, if /when I finish.
