X
Нажмите здесь, чтобы перейти на мобильную версию сайта.

Форум поддержки

[regression] Text rendering is incorrect

Размещено

Those three operations should make the text rendering correct:

Disable hardware acceleration Set gfx.canvas.azure.backends to direct2d1.1,cairo Set gfx.content.azure.backends to direct2d1.1,cairo

https://renderingenginetest.netlify.com/

Dark theme can be tested by reversing the foreground and background colors in the HTML.

For reference, here is the correct GDI rendering of this website:

https://i.imgur.com/dWuZfbD.png https://i.imgur.com/M4oKd7i.png

In Firefox ESR 52.4.1 (32-bit), text renders correctly:

https://i.imgur.com/InrXmeI.png https://i.imgur.com/kn3bZra.png

which is the same as the GDI rendering of this website, except for some line spacing issues.

However, in Firefox 70.0b6 (32-bit), the rendering regressed and text no longer renders correctly:

https://i.imgur.com/Jn2NxGJ.png https://i.imgur.com/qDxww7y.png

Line spacing is correct, but don't let this distract you from how profoundly unsmooth the rendering is in the light theme version. The dark theme version is nearly identical though.

Those three operations should make the text rendering correct: Disable hardware acceleration Set gfx.canvas.azure.backends to direct2d1.1,cairo Set gfx.content.azure.backends to direct2d1.1,cairo https://renderingenginetest.netlify.com/ Dark theme can be tested by reversing the foreground and background colors in the HTML. For reference, here is the correct GDI rendering of this website: https://i.imgur.com/dWuZfbD.png https://i.imgur.com/M4oKd7i.png In Firefox ESR 52.4.1 (32-bit), text renders correctly: https://i.imgur.com/InrXmeI.png https://i.imgur.com/kn3bZra.png which is the same as the GDI rendering of this website, except for some line spacing issues. However, in Firefox 70.0b6 (32-bit), the rendering regressed and text no longer renders correctly: https://i.imgur.com/Jn2NxGJ.png https://i.imgur.com/qDxww7y.png Line spacing is correct, but don't let this distract you from how profoundly unsmooth the rendering is in the light theme version. The dark theme version is nearly identical though.
Цитата

Дополнительные сведения о системе

Установленные плагины

  • Adobe PDF Plug-In For Firefox and Netscape 19.12.20036
  • NPWLPG
  • Shockwave Flash 32.0 r0
  • Vizzed Retro Game Room Plugin

Приложение

  • User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0

Дополнительная информация

TyDraniu
  • Top 25 Contributor
316 решений 1782 ответов
Размещено

PiotrGrochowski said

Those three operations should make the text rendering correct: Disable hardware acceleration Set gfx.canvas.azure.backends to direct2d1.1,cairo Set gfx.content.azure.backends to direct2d1.1,cairo

If you disabled HA, enumerating 'direct2d1.1' was redundant. You've been using cairo for text rendering.

Recently cairo code has been removed from the browser. See bug 1517077.

''PiotrGrochowski [[#question-1268750|said]]'' <blockquote> Those three operations should make the text rendering correct: Disable hardware acceleration Set gfx.canvas.azure.backends to direct2d1.1,cairo Set gfx.content.azure.backends to direct2d1.1,cairo </blockquote> If you disabled HA, enumerating 'direct2d1.1' was redundant. You've been using cairo for text rendering. Recently cairo code has been removed from the browser. See [https://bugzilla.mozilla.org/show_bug.cgi?id=1517077 bug 1517077].
Помогла ли вам это?
Цитата

Задавший вопрос

What a facepalm it is that high quality text rendering has been removed. It is a regression. It is a dealbreaker because many if not most webpages have text in them so I'm not using the recent version.

What a facepalm it is that high quality text rendering has been removed. It is a regression. It is a dealbreaker because many if not most webpages have text in them so I'm not using the recent version.
Помогла ли вам это?
Цитата
McCoy
  • Top 10 Contributor
534 решений 5035 ответов
Размещено
See this Reddit thread : https://www.reddit.com/r/firefox/comments/cz6nys/firefox_69_breaks_windows_font_rendering/
Помогла ли вам это?
Цитата

Задавший вопрос

Has anyone tested whether this regression is crossplatform? (all platforms using Mozilla's open-source DirectWrite renderer as opposed to the system native text rendering engine)

Has anyone tested whether this regression is crossplatform? (all platforms using Mozilla's open-source DirectWrite renderer as opposed to the system native text rendering engine)

Изменено PiotrGrochowski

Помогла ли вам это?
Цитата

Задавший вопрос

https://fontgammatest.netlify.com/ is the test of gamma.

https://fontgammatest.netlify.com/ is the test of gamma.
Помогла ли вам это?
Цитата

Задавший вопрос

To this day, Firefox ESR 52.4.1 (32-bit) is one of the only browsers to even remotely allow standard GDI rendering.

To this day, Firefox ESR 52.4.1 (32-bit) is one of the only browsers to even remotely allow standard GDI rendering.
Помогла ли вам это?
Цитата
Задать вопрос

Для ответа на сообщения вы должны войти в свою учётную запись. Пожалуйста, задайте новый вопрос, если у вас ещё нет учётной записи.