WebRender newsletter #40

WebRender is a GPU based 2D rendering engine for web written in Rust , currently powering Mozilla’s research web browser Servo and on its way to becoming Firefox ‘s rendering engine.

Notable WebRender and Gecko changes

• Kats made improvements to the continuous integration on Mac.
• Kvark fixed a crash.
• Kvark added a way to dump the state of the frame builder for debugging.
• kvark made transform flattening operate at preserve-3d context boundaries.
• kvark enabled non-screen-space rasterization of plane-splits.
• kvark fixed seams between image tiles.
• Glenn fixed a bug with border-style: double where the border widths are exactly 1 pixel.
• Glenn made some improvements to pixel snapping.
• Glenn added some debugging infrastructure for pixel snapping.
• Glenn tidied up some code and added a few optimizations.
• Nical fixed a rendering bug with shadows and blurs causing them to flicker in some cases.
• Nical simplified the code that manages the lifetime of image and blob image handles on the content process.
• Nical added a test.
• Sotaro enabled mochitest-chrome with WebRender in the CI.
• Sotaro improved scrolling smoothness when using direct composition.
• Sotaro fixed a window creation failure when using WebRender with Wayland.
• Emilio improved background-clip: text invalidation.

Blocker bugs countdown

Only 0 P2 bugs and 4 P3 bugs left (two of which have fixes up for review)!

Enabling WebRender in Firefox Nightly

The best place to report bugs related to WebRender in Firefox is the Graphics :: WebRender component in bugzilla.

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