Platform/2008-07-09

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GFX 1.9.1 Update

• GFX blocking 1.9.1+
  • vlad finishing up border work, need to find machine to reproduce perf problems
• GFX wanted 1.9.1+
  • SVG fonts
    • karlt: no progress due to distractions. This will benefit from the infrastructure being developed for downloadable fonts.
  • Do we have an update on bz's work to make <img src="foo.svg> possible?
• Video (roc/cdouble)
  • Core element patch uploaded, needs content review now, hopefully land soon
  • Some tests written, still working on them
  • Ogg Vorbis/Theora backend could get review soon after core element patch lands
  • Probably should try to land GStreamer and Quicktime backends soonish
  • DirectShow backend playing some movies, needs more work
• downloadable fonts (jdaggett)
  • unified font entry in this week hopefully (bug 437356)
  • starting on user font object (bug 441473)
  • zack: @font-face parsing is coded, but does not populate any data structure yet; am planning to make it build a standard CSS DOM structure; the user font set object should then populate from that; see bug 441469 for details
  • roc: this (and SVG fonts) seem most at risk; hard to see it working by end of July
  • jdaggett: SVG fonts is a much bigger task than downloadable fonts (parsing, external refs, shaping, drawing, etc.)
• pixman/cairo perf (vlad):
  • Will do new drop of cairo in next 2 weeks
  • Will have SSE2 opts and additional work from antoine/fred
  • 16.16 pixman coordinate space still an issue

Layout 1.9.1 Update

• 1.9.1 Layout Bugs
• Acid3: Roc or dbaron, status?
  • Nothing much happening, lots of patches waiting for review (dbaron, bz, jonas)
• SMIL still @ risk? (dholbert)
  • May not have a 100% complete implementation, but we should have a good subset implemented in time for feature freeze
  • Currently working on integrating with style system to animate CSS properties
• SVG fonts at risk?
  • karlt: yes.
• SVG CSS, roc:
  • Patches trickling into trunk, need review mats immediately and will need reviews from mats and rlongson and others for ongoing merging
  • SVG gradients and patterns as backgrounds for HTML elements --- working in branch
  • Starting work on feature to use an element as background for another element (covers -webkit-canvas, (combined with transforms) reflections, thumbnails and other use cases), should be quick as infrastructure is in place
• white-space:pre-line (roc)
  • needs updated patch for review
• box-shadow (Ventnor)
  • landed
• border-image (robarnold, dbaron)
  • very close to ready-to-review
• media queries (dbaron)
  • awaiting review (from bzbarsky)
• CSS transforms - keith:
  • Parser can read -moz-transform property. Working on helper -moz-transform-origin property.
  • Basic rendering works (e.g. can draw all transforms). Need to work on computing overflow rectangles.
  • Working on mouse interaction and click detection.

Content 1.9.1 Update

• Content 1.9.1 Bugs
  • ~30 wanted bugs, will triage today. Nothing critical for alpha1 on the list from first look.
  • Worker Threads: Moving forward well. Ben will be out for a week, but will still try to get the basics in for a1. Patches up for review already, though still some changes coming.

Template:Bug 437152.

• • Cross-site XHR: Jonas and Arun had a good meeting about the remaining spec issues last week, but there's still some final decisions to be made and to agree to.
  • Java/OJI bug waiting for reviews (from Jonas).

JS 1.9.1

• JS 1.9.1 Bugs
• JS Tracing:
  • Last week's status:
    • Tamarin nanojit integrated in SpiderMonkey
    • Recording traces for single paths through simple loops
    • Cooperating with Adobe folks on nanojit API and memory management
    • TT has more new String API improvements
  • This Week's Status:
    • merged m-c and TT latest
    • adding tracing for various opcodes
    • TT prepping for SSE opts
    • landed nanojit refactorings

Landed some incremental perf wins, 5-10% improvement over 1.9 so far.

• Need to prioritize/file these.
  • JSObject ops makeover
  • direct threaded interpreter loop on Windows
  • SDK / compiler adjustments on Mac
  • Profile guided input improvements

Blocking
417131	brendan@mozilla.org	review_igor?	JS Enumeration Allocation Consternation
430133	general@js.bugs		Object.defineProperty
421864	igor@mir2.org	wip-patch	Interpreter creates too many doubles
433337	igor@mir2.org	review_brendan?	Reunify jsinterp.c on Windows
Wanted
229756	brendan@mozilla.org		Make SpiderMonkey's const extension JS2/ES4 compatible
260106	brendan@mozilla.org	wip-patch	elisions in array literals should not create properties (js1_5/Array/11.1.4.js)
312354	brendan@mozilla.org	FIXED	Assignment expressions have wrong type (ecma_3/Operators/11.13.1-002.js)
363534	brendan@mozilla.org	FIXED	Combine JSOP_LT and JSOP_IFEQ, etc., pairs
384244	crowder@fiverocks.com	wip-patch	update jsdtoa with interesting pieces of more-recent dtoa
433351	crowder@fiverocks.com		Implement Object.extend
442379	dmandelin@mozilla.com	wip-patch	try inline-threading, at least with GCC if not MSVC
305064	general@js.bugs		Add trim, ltrim, and rtrim features for javascript strings
352437	general@js.bugs		string.link does not escape url
429507	general@js.bugs		Function.prototype.bind
411575	igor@mir2.org	FIXED	js_PutCallObject() is slow.
432881	igor@mir2.org	FIXED	SM: JSVAL_VOID as a pseudo-boolean
346749	mrbkap@gmail.com	still_want?	let declarations at top level are turned into var declarations
312116	nobody@mozilla.org		should support catchall getters/setters
419225	sayrer@gmail.com	wip-patch	refactor ExecuteREBytecode and SimpleMatch
430930	sayrer@gmail.com		Date.parse cannot even parse "2008-04-26" (should understand ISO 8601)
419743	shaver@mozilla.org	wip-patch	JSOP_CONCATN for improved chained-concat performance
433335	shaver@mozilla.org		mark sharp object avoidance
433336	shaver@mozilla.org		array iteration optimization

Mobile 1.9.1 Update

• DirectFB port
  • Code in good shape, needs a final review and to be landed on mozilla-central
• bug 437948 Geolocation
  • Dougt has a patch to add geolocation support to the DOM.
• bug 436083 Viewport meta tag support
  • Bobby has a patch together than hooks in to Fennec to support Apple's proposed viewport meta tag

General 1.9.1 Updates

• offline, dcamp:
  • Last week:
    • Versioned app cache patch attached 442806 (with some followups in the dependencies). Waiting for review.
    • Opportunistic/fallback caching namespace patch attached 442813. One round of review done, waiting on a new patch.
    • Test suite started 443017. Some review done, will need an updated patch.
    • Image requests/caching will be an issue, see bug 442809
  • This week:
    • Not much change - have a few more reviews and revisions of the patches above. Will need to redo the patch for 442809 to work with the changes in patch 430061.

• GSoc Windows Text Services Framework
  • Seems to be making significant progress without much help:

http://wiki.mozilla.org/Community:SummerOfCode08:TSF

mozilla-central

• Need a query facility, like bonsai. Status?
  • Need pushlog code updated on hg.mozilla.org to use new sqlite backend bug 437637, then pushlog web extension needs query support added bug 437445
• Cycle times are seemingly slower on moz-central (about an hour slower). Need to look into this. John O to investigate. Sorry, no chance to investigate yet. (01july2008)