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[Devel] unpatented hinting system checked in
From: |
Graham Asher |
Subject: |
[Devel] unpatented hinting system checked in |
Date: |
Fri, 25 Apr 2003 12:52:55 +0100 |
I have now checked in the new 'unpatented hinting system' (David Turner gave
me permission to do this in an email dated Sat 15/03/2003 1:36 pm), and
mindful of Werner's requests, I'm notifying everybody. It has NO effect on
the operation of FreeType unless specifically enabled by defining a new
macro, TT_CONFIG_OPTION_COMPILE_UNPATENTED_HINTING, in ftoption.h.
When enabled, it allows typefaces like mingliu.ttc from Dynalab to work
properly without infringing Apple patents. These typefaces use the hinting
system to form their glyphs properly; the glyphs are completely the wrong
shape when hinting (i.e., the TrueType bytecode interpreter) is not used.
This work was commissioned by Artifex, Inc., but is subject to the ordinary
FreeType license and has no other restrictions.
I enclose a picture demonstrating the effects.
Please tell me if you have any problems with this code.
Best wishes to all FreeTypers,
Graham Asher
unpatented-hinting-demo.bmp
Description: Windows bitmap