1911231 - [GPU-Canvas] Dwitter demo (https://beta.dwitter.net/d/32153) doesnt render anything on screen (but continues to use CPU/GPU)

Status: RESOLVED FIXED

(Core :: Graphics: Canvas2D, defect)

Description

[Mayank Bansal]

Go to https://beta.dwitter.net/d/32153

AR: Nothing is drawn on the screen
ER: Not so.

Bisection:https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=b57f595130acee604d2c3f63a97940d030575498&tochange=b109fa8d1c86af435d42db733a3975891db26095
Suspect: bug 1828570 or bug 1828137

Gets fixed if i disable gpu-canvas and enable d2d-canvas.

Comment 1

[Mayank Bansal]

Attachment: about:suppoprt GPU_Canvas

Comment 2

[Mayank Bansal]

Attachment: about:support. D2D-canvas. No Bug.

Comment 3

[Mayank Bansal]

Gets fixed if you set both:
gfx.direct2d.disabled = False
gfx.canvas.accelerated = False

Comment 4

[Lee Salzman [:lsalzman]]

Attachment: Bug 1911231 - Clip fill/clear ops to viewport when possible. r?aosmond

We can avoid falling back to Skia on certain fill/clear ops so long as
the transform produces axis-aligned rectangles. In that case, we can
do a precise clip of the transformed rect to the viewport, which can
then be accelerated without any risk of fallback.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5e74addf2af7
Clip fill/clear ops to viewport when possible. r=aosmond

Comment 6

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/5e74addf2af7

Comment 7

[Mayank Bansal]

This is fixed for me on the latest Nightly.