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Eskil Abrahamsen Blomfeldt 28b2232e78 Don't dither antialiasing on glyphs when converting to mono
When glyphs are converted to monochrome from an alpha map,
it does not make sense to apply high quality dithering, because
the result will be that some the subpixels along the edges
that cover only part of a pixel are filled. This causes the
glyphs to look jagged and ugly.

Instead, we use ThresholdDither to fill all pixels that are
>= 50% opacity.

[ChangeLog][QtGui][Text] Improved appearance of monochrome
text on some platforms.

Fixes: QTBUG-69702
Change-Id: I0f44a8d73f6b9f1eb59f297d66438575f1e9db10
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-12-21 10:27:22 +00:00
bin syncqt: Do not clean header directory before "-minimal" run 2018-11-22 14:16:53 +00:00
config.tests configure: modernize iconv use 2018-12-19 19:22:16 +00:00
dist Include CLDR 34 update in change log 2018-12-11 18:57:27 +00:00
doc doc: Update online navigation header to match http://doc.qt.io/ 2018-10-17 16:16:28 +00:00
examples threads: disable threads examples for nothread builds 2018-12-10 05:36:08 +00:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
mkspecs qmake: remove support for pre-5.6 qt module pris 2018-12-20 21:01:16 +00:00
qmake qmake: fixify target paths of extra compilers more consistently 2018-12-20 21:01:07 +00:00
src Don't dither antialiasing on glyphs when converting to mono 2018-12-21 10:27:22 +00:00
tests Fix text shifting vertically when elided 2018-12-21 10:27:12 +00:00
util Clean up and update Unicode character data 3rd-party infrastructure 2018-11-11 22:09:27 +00:00
.gitattributes Update the git-archive export options 2012-09-07 15:39:31 +02:00
.gitignore Remove support for qml1 plugins and modules 2018-11-15 19:52:13 +00:00
.qmake.conf Bump version 2018-11-08 11:26:39 +01:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
config_help.txt src/3rdparty: remove xkbcommon 2018-11-30 09:47:03 +00:00
configure configure: Treat win32-clang-g++ the same as win32-g++ 2018-10-10 04:10:40 +00:00
configure.bat configure: Prefer cl.exe over clang-cl.exe 2018-01-04 21:22:42 +00:00
configure.json configure: enable inline tests to contain auxiliary files 2018-12-19 19:22:06 +00:00
configure.pri configure: fix license determination failure message 2018-11-21 23:07:48 +00:00
header.BSD Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.FDL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL-EXCEPT Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3-COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-NOGPL2 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-ONLY Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.MIT qsimd: add support for new x86 CPU features 2018-05-05 06:20:07 +00:00
INSTALL Doc: Update links in INSTALL file 2015-02-16 09:06:41 +00:00
LICENSE.FDL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.GPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPLv3 Remove LICENSE.GPLv3, LICENSE.LGPLv21, LGPL_EXCEPTION.txt 2018-04-16 11:02:14 +00:00
LICENSE.QT-LICENSE-AGREEMENT-4.0 Replace commercial preview license with Qt License Agreement 4.0 2018-06-21 11:39:15 +00:00
qtbase.pro nuke configure -host-option 2016-12-13 18:55:59 +00:00
sync.profile Fix build failed with ANGLE 2018-10-16 05:19:43 +00:00