1617553 - [Wayland] Activating DMA-BUF for WebGL has swapped color channels

Status: RESOLVED FIXED

(Core :: Graphics: CanvasWebGL, defect)

Description

[Kenny Levinsen :kennylevinsen]

Attachment: Screenshot with DMA-BUF enabled for WebGL

Reproduction on latest nightly:

1. Force-enable OpenGL compositing.
2. Enable widget.wayland_dmabuf_webgl.enabled
3. Run WebGL aquarium test (https://webglsamples.org/aquarium/aquarium.html)

Tested on intel integrated graphics with sway/wlroots.

Observed result

Increased performance, but with swapped color channels (red/blue swap).

Expected result

Increased performance with same output.

Comment 1

[Kenny Levinsen :kennylevinsen]

Attachment: Screenshot without DMA-BUF enabled for WebGL

Comment 2

[Martin Stránský [:stransky] (ni? me)]

That's very interesting, Thanks. It's because I tested that on https://webglsamples.org/blob/blob.html where the colors are not so visible :)

Comment 3

[Jan Alexander Steffens [:heftig]]

I can reproduce this with OpenGL layers, but not basic layers or WebRender.

Comment 4

[Martin Stránský [:stransky] (ni? me)]

I expect it may be also broken in gl compositor when "widget.wayland_dmabuf_textures.enabled" is set to true.

Comment 5

[Martin Stránský [:stransky] (ni? me)]

Attachment: Bug 1617553 [Wayland] Use GL texture format instead of surface one for GL texture source, r?sotaro

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/83c66ad3ea49
[Wayland] Use GL texture format instead of surface one for GL texture source, r=sotaro

Comment 7

[Kenny Levinsen :kennylevinsen]

Confirmed to also affect widget.wayland_dmabuf_textures.enabled

Comment 8

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/83c66ad3ea49