Platform/GFX/2011-May-16
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Agenda
- WebGL security (bjacob)
- bug 656277: we're going to restrict WebGL textures to same-origin
- We then want to relax this with CORS. Requires ImageLib changes.
- Text Rendering with DirectWrite (joe and a cast of thousands)
- Overview
- General concern that text rendering via DirectWrite is causing users not to upgrade, to leave FF or PR churn
- Fonts with the largest issues are
- Arial, Verdana, Tahoma, Times New Roman, Georgia
- Font updates that were supposed to help not yet released by MS
- Supposed to be out in April
- We need both an interim solution and a longer term plan
- Testing
- http://people.mozilla.org/~jdaggett/tests/cleartype-waterfall.html
- Needs to include non-Latin-1 text as well
- about:config settings
- gfx.font_rendering.directwrite.enabled = true
- gfx.font_rendering.cleartype_params.*
- rendering_mode -> -1/2
- DW default vs GDI
- enhanced_contrast -> -1/200
- rendering_mode -> -1/2
- cleartype params in about:support
- won't show up until you tune clear type in the control panel
- http://people.mozilla.org/~jdaggett/tests/cleartype-waterfall.html
- Proposed interim solutions
- GDI_CLASSIC flag for direct write
- rendering_mode = 2
- Affect about 34% of Windows 7 FF4 users
- About 10% of user base (less because we still have a lot of 3.6 users, but they are migrating fast)
- Possibly only for key fonts at certain sizes
- Increase contrast
- enhanced_contrast = 200
- GDI_CLASSIC flag for direct write
- Proposed long term solutions
- Test pilot study for feedback
- More complete QA review on top websites
- Overview
- Intern projects (joe)
- We're looking for self-contained project proposals for interns to work on in September/January.
- If you have ideas, please contact joe!
- bug 657141
- 2x fps difference in for example speedreading
- Backout or fix?
- Onboarding (Benwa)
- bug 598425: Will be reading windows async code and investigating how to integrate the design on OS X.
- Cairo update
- we are leaking a shared memory buffer the size of the window with D2D