1718497 - Minimize / maximize / close buttons are not visible with Alpenglow theme with WebRender(Software D3D11) on Window7

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect)

Description

[Sotaro Ikeda [:sotaro]]

Created from a user post on the desktop development channel.

Comment 1

[Sotaro Ikeda [:sotaro]]

Attachment: No buttons.png

Comment 2

[Sotaro Ikeda [:sotaro]]

It looks similar to Bug 1636683.

Comment 3

[Sotaro Ikeda [:sotaro]]

WebRender(Software D3D11) could be enabled with pref gfx.webrender.software=true and pref gfx.webrender.software.d3d11=true.

Comment 4

[Sotaro Ikeda [:sotaro]]

It seems that clear tile is not handled by WebRender(Software D3D11). composite_simple() handle the clear tile like the following.

• https://searchfox.org/mozilla-central/rev/eb4579a52d8a155d69cf0743772ca3f0a7244a41/gfx/wr/webrender/src/renderer/mod.rs#3347
• https://searchfox.org/mozilla-central/rev/eb4579a52d8a155d69cf0743772ca3f0a7244a41/gfx/wr/webrender/src/renderer/mod.rs#3418

Comment 5

[Sotaro Ikeda [:sotaro]]

With WebRender(Software), the problem did not happen. Since it copy BGRA data instead of blit data when tile is opaque.
https://searchfox.org/mozilla-central/rev/ed5c7b4262d4e30656886a45321cbbf4200de349/gfx/wr/swgl/src/composite.h#442

Comment 6

[Sotaro Ikeda [:sotaro]]

Attachment: Bug 1718497 - Copy opaque tile instead of premultiplied blending

Comment 7

[Sotaro Ikeda [:sotaro]]

https://treeherder.mozilla.org/jobs?repo=try&revision=6bec10f8d5d13beceb50c561c7402c49adf714e8

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/827ee33b9a37
Copy opaque tile instead of premultiplied blending r=lsalzman

Comment 9

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/827ee33b9a37