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windowManager: Use MetaWindowActor.paint_to_content() for window effects

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Previously we used `get_image()`, which returned `cairo_surface`,
in order to create a `ClutterContent` with a screenshot of the
`MetaWindowActor`. This added a roundtrip from GPU to CPU memory.

Instead, use the new `paint_to_content()` API which lets us use a
`CoglTexture` directly as source of our `ClutterContent`.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1879>
This commit is contained in:
Robert Mader 2021-06-06 14:29:47 +02:00 committed by Marge Bot
parent 46f2c29acc
commit 36a1fb78cd
1 changed files with 1 additions and 1 deletions
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2
js/ui/windowManager.js
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@ -1283,7 +1283,7 @@ var WindowManager = class {
_prepareAnimationInfo(shellwm, actor, oldFrameRect, _change) { _prepareAnimationInfo(shellwm, actor, oldFrameRect, _change) {
// Position a clone of the window on top of the old position, // Position a clone of the window on top of the old position,
// while actor updates are frozen. // while actor updates are frozen.
let actorContent = Shell.util_get_content_for_window_actor(actor, oldFrameRect); let actorContent = actor.paint_to_content(oldFrameRect);
let actorClone = new St.Widget({ content: actorContent }); let actorClone = new St.Widget({ content: actorContent });
actorClone.set_offscreen_redirect(Clutter.OffscreenRedirect.ALWAYS); actorClone.set_offscreen_redirect(Clutter.OffscreenRedirect.ALWAYS);
actorClone.set_position(oldFrameRect.x, oldFrameRect.y); actorClone.set_position(oldFrameRect.x, oldFrameRect.y);