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Re: [ft-devel] [GSoC] CID font support, and others
From: |
Werner LEMBERG |
Subject: |
Re: [ft-devel] [GSoC] CID font support, and others |
Date: |
Tue, 01 Aug 2017 15:46:02 +0200 (CEST) |
> I think I've isolated the problem with hinting. Suffice to say the
> hinter works on the premise that all hints are known at the start.
> This is generally not true for Type 1 fonts. Perhaps it is possible
> to change the logic to remove this condition.
Hmm. Please elaborate and give an example.
> The only other solution that comes to mind is doing an extra pass
> just to build the initial hintmap, after which hint moves should
> presumably work right.
I like your first suggestion better.
> As for the profiling, I was unable to reproduce the difference in
> load times.
>
> ftbench results for font `SourceHansSans-Regular.otf':
> FT_Load_Glyph (units: us/op)
> flags adobe freetype
> 0x0 14.628 14.193
> 0x1 13.088 13.160
> 0x2 13.674 13.147
>
> Note: This was done on master branch.
I guess it's not `FT_Load_Glyph' but rather `FT_Get_Advance' that
might cause slow-downs. Behdad?
> I ran it with valgrind too but couldn't get useful information.
What did you exactly do?
Werner
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/01
- Re: [ft-devel] [GSoC] CID font support, and others,
Werner LEMBERG <=
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/01
- Re: [ft-devel] [GSoC] CID font support, and others, Werner LEMBERG, 2017/08/05
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/07
- Re: [ft-devel] [GSoC] CID font support, and others, Werner LEMBERG, 2017/08/07
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/08
- Re: [ft-devel] [GSoC] CID font support, and others, Werner LEMBERG, 2017/08/08
- Re: [ft-devel] [GSoC] CID font support, and others, Werner LEMBERG, 2017/08/08
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/08
- Re: [ft-devel] [GSoC] CID font support, and others, Ewald Hew, 2017/08/09
- Re: [ft-devel] [GSoC] CID font support, and others, Werner LEMBERG, 2017/08/10