#7797: [app_server] Alternative implementation of subpixel rendering (patch)
----------------------------------+----------------------------
Reporter: diver | Owner: leavengood
Type: bug | Status: in-progress
Priority: normal | Milestone: Unscheduled
Component: Servers/app_server | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
----------------------------------+----------------------------
Comment (by diver):
From [https://sourceforge.net/projects/freetype/files/freetype2/2.6.4/
freetype 2.6.4 release]:
{{{
CHANGES BETWEEN 2.6.3 and 2.6.4
I. IMPORTANT CHANGES
- A new subpixel hinting mode has been contributed by Nikolaus
Waxweiler, which is now the default rendering mode for TrueType
fonts. It implements (almost everything of) version 40 of the
bytecode engine.
The existing code base in FreeType (the `Infinality code') was
stripped to the bare minimum and all configurability removed in
the name of speed and simplicity. The configurability was
mainly aimed at legacy fonts like Arial, Times New Roman, or
Courier. [Legacy fonts are fonts that modify vertical stems to
achieve clean black-and-white bitmaps.] The new mode focuses on
applying a minimal set of rules to all fonts indiscriminately so
that modern and web fonts render well while legacy fonts render
okay.
Activation of the subpixel hinting support can be controlled
with the `TT_CONFIG_OPTION_SUBPIXEL_HINTING' configuration
option at compile time: If set to value 1, you get the old
Infinality mode (which was never the default due to its
slowness). Value 2 activates the new subpixel hinting mode, and
value 3 activates both. The default is value 2.
At run time, you can select the subpixel hinting mode with the
`interpreter-version' property (provided you have compiled in
the corresponding hinting mode); see `ftttdrv.h' for more.
}}}
--
Ticket URL: <https://dev.haiku-os.org/ticket/7797#comment:21>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.
