1577024 - [Wayland] Enable experimental wayland backend modes by widget.wayland_cache_mode pref

Status: RESOLVED FIXED

(Core :: Widget: Gtk, enhancement)

Description

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Enable partial and non-cached Wayand backend rendering. May be suitable for fullscreen video playback and/or battery saving and so on. It's controled by widget.wayland_cache_mode.

Comment 1

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

btw. the non-cached mode may be set automatically when Firefox comes to fullscreen and/or whole content window update is detected (like during scrolling). While fullscreen transition may be easy to detect I wonder how I can detect the scrolling.

Comment 2

[Martin Stránský [:stransky] (ni? me) (PTO, back on Feb 17)]

Attachment: Bug 1577024 - [Wayland] Enable experimental wayland backend modes by widget.wayland_cache_mode pref, r=jhorak

Image cache mode can be set by widget.wayland_cache_mode.

• widget.wayland_cache_mode = 0 (or missing):
  Cache and clip all drawings, default. It's slowest
  but also without any rendered artifacts.

• widget.wayland_cache_mode = 1:
  Cache drawing only when back buffer is missing. May produce
  some rendering artifacts and flickering when partial screen update
  is rendered.

• widget.wayland_cache_mode = 2:
  Don't cache anything, draw only when back buffer is available.
  Suitable for fullscreen content only like fullscreen video playback and
  may work well with dmabuf backend.

Comment 3

[David Heidelberg [:okias]]

(In reply to Martin Stránský [:stransky] from comment #1)

btw. the non-cached mode may be set automatically when Firefox comes to fullscreen and/or whole content window update is detected (like during scrolling). While fullscreen transition may be easy to detect I wonder how I can detect the scrolling.

that sounds interesting, in case you want to test some patch on intel (regular or gallium iris driver)+ HD / 4K, feel free to send it and I'll do testing :) (best if I'll be able change behaviour with something like widget.wayland_cache_mode ).

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/893a4487b586
[Wayland] Enable experimental wayland backend modes by widget.wayland_cache_mode pref, r=jhorak

Comment 5

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/893a4487b586

Comment 6

[Bogdan Tara[:bogdan_tara | bogdant]]

https://hg.mozilla.org/releases/mozilla-beta/rev/893a4487b586