August 2009 - webkit-dev - lists.webkit.org

Using JavaScriptCore in Win32
by Brian Barnes 11 Aug '09

11 Aug '09

I'm attempting to use JSC in my win32 port of my application, and am running into a number of problems. I suspect they all stem from the fact that there must be some #defines I need to properly set before compiling the headers or some other required library or header. This seems to be the case as the first error I get is: #if !PLATFORM(WIN_OS) throws up an "unexpected token". I can obviously work around this one but I suspect there are more. Can anybody give me a list and this should probably be something that's in the docs somewhere. I'm using Express 2008 for the compile. [>] Brian

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Re: [webkit-dev] WebKit port to Sony Ericsson phones in progress
by Sandblad, Andreas 11 Aug '09

11 Aug '09

Hi, My name is Andreas Sandblad (andreas.sandblad(a)sonyericsson.com) I am overall responsible for the technical design of the SEMC WebKit integration (OPA port). Currently I am designing the Java WebKit API exposed to our applications. Kind regards, Andreas Sandblad (Sony Ericsson WebKit team) -----Original Message----- From: Pileryd, Björn Sent: fredag den 7 augusti 2009 14:32 To: 'webkit-dev(a)lists.webkit.org' Subject: WebKit port to Sony Ericsson phones in progress Hello everybody! We are a team of developers at Sony Ericsson Mobile Communications, creating a new port of WebKit. This port is using the OPA platform from ST Ericsson as operating-system and toolkit-level dependencies. The underlying operating system is OSE from Enea. In short we will call it "the OPA port". This port is still under development and is not yet ready for release. However we are making good progress and are very impressed with WebKit. We would like to introduce some members of our team that may be asking questions and joining discussions on this mailing list in the future. Björn Pileryd (bjorn.pileryd(a)sonyericsson.com) - My responsibility is the software module at SEMC that contains the WebKit library for the OPA based phones. I am involved in the design and implementation of stuff all the way from WebCore up to our UI. Henrik Baard (henrik.baard(a)sonyericsson.com) - Have done work on the OPA port, now investigating WebKit Browser on the Android platform. More members will introduce themselves as they get back to office from their vacations. If you have any questions about this port, we will do our best to answer them. Best regards, The WebKit team at Sony Ericsson

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Building Webkit on Linux
by Jilu Oommen 11 Aug '09

11 Aug '09

Hi, I am trying to build webkit on Linux using gcc (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8). Currently I am getting stuck on linking error: ar: DerivedSources/.libs/JSCSSCharsetRule.o: No such file or directory Can you please let me know a solution at the earliest. Or Please suggest the latest version of webkit source that will work fine on Linux. thanks in advance, Jil

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Building webkit on Linux platform
by LinuxUserJS 11 Aug '09

11 Aug '09

Hi, I am trying to build webkit on Linux using gcc (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8). Currently I am getting stuck on linking error: ar: DerivedSources/.libs/JSCSSCharsetRule.o: No such file or directory Can you please let me know a solution at the earliest. Or Please suggest the latest version of webkit source that will work fine on Linux. thanks in advance, LinuxUserJS -- View this message in context: http://www.nabble.com/Building-webkit-on-Linux-platform-tp24914488p24914488… Sent from the Webkit mailing list archive at Nabble.com.

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resolve-ChangeLogs now seems to be broken the same was prepare-ChangeLog was before
by Darin Adler 10 Aug '09

10 Aug '09

$ resolve-ChangeLogs WebCore/ChangeLog svn: warning: '../../../../Volumes/Home/darin/Safari/OpenSource/ WebCore/ChangeLog' is not a working copy WARNING: ../../../../Volumes/Home/darin/Safari/OpenSource/WebCore/ ChangeLog is not in a conflicted state. Anyone know who broke this? -- Darin

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Using Nightly Builds as Development Binaries
by Brian Barnes 10 Aug '09

10 Aug '09

After weeks of labor, I'm ready to switch from SpiderMonkey to Nitro. One thing that would make my life much easier is to use the nightly builds as "development binary releases." I know this is a little outside their intended use. For OS X, it's easy, I just open the package and grab the framework. For win32, though, I'm missing the lib to go along with the dll. Is it possible whatever script builds the nightly could also put in the lib, and even better (I can get these from the source, so it's not a big deal), the interface headers for JSC (and probably those for the other components.) I understand that I'm basically asking for a convenience on my part, but I think a lot of open source libraries have binary releases and hopefully it might be simple on your end (to alter some script.) Thanks, [>] Brian

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WebKit and Khronos Group
by Harry Underwood 10 Aug '09

10 Aug '09

Hello all, just a few questions. I was reading a post on Ars Technica from earlier this week<http://arstechnica.com/open-source/news/2009/08/webgl-standard-to-bring-3d-…>concerning the Khronos Group's announcement of a partnership on WebGL development with Google, Mozilla and Opera. Weirdly, I didn't see Apple in that list, or WebKit for that matter. Is Apple and/or WebKit abstaining from WebGL because Google is promoting a seemingly-competing product, O3D, as opposed to your efforts with CSS 2D/3D Transforms and Animations? Or is it because WebGL, as announced by Khronos Group, simply doesn't yet take CSS (or SVG) into technical account for hardware accelerated 3D Web graphics? Harry

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Loading from shared workers (shadow documents?)
by Drew Wilson 09 Aug '09

09 Aug '09

Hi all, I'm about to work on adding network access support to shared workers. To refresh your memory, shared workers can outlive any specific document object - they exit when the last referring document exits. Current dedicated workers just proxy all network operations over to their associated Document object. If the Document is closed prematurely, then the network operation is aborted and an error is returned to the worker, which is fine because the Worker is exiting anyway. For shared workers we can't just proxy network operations over to an arbitrary parent document, because the user may choose to close that document in mid-load yielding an inappropriate error response to the user. We have a few options: 1) If a document closes mid-load, just return an error to the worker. So treat this case like Just Another Network Hiccup. 2) If a document closes mid-load, just retry the network access on another parent document. I'm not certain that this is acceptable from a spec-compliance standpoint (the server might end up seeing multiple network requests even though from the client stand point only one was issued). 3) Don't let documents fully go away while there's outstanding worker network access. For a long-lived hanging get, this seems like it might keep a document around (in hidden state) for a long time, and I'm not sure what the ramifications are of that. Also, there's the issue of how to deal with things like HTTP auth from hidden documents (although HTTP auth is problematic for shared workers in general as it's kind of arbitrary which window the auth UI appears under). 4) Create a new "shadow document" for the worker that it uses to satisfy all of its loading requests. This is what Chromium does for all its worker network access currently. This is the most robust solution, although I'm still not certain how HTTP auth would be handled in this case). I'm leaning towards #1 in the short-term, but I'd like to get feedback about what our long-term approach should be. -atw

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automatic webkit bugzilla bug-posting / management tool
by Luke Kenneth Casson Leighton 09 Aug '09

09 Aug '09

as part of managing 29 patches to webkit i decided to develop a system which parses the ChangeLog entries and re-creates the patches. but - not only that, there's a system for automatic uploading of the patch attachment, as well: http://lkcl.net/webkit/patman it could probably be adapted equally well to work on any bugzilla system, but the Webkit ChangeLog format makes it particularly convenient to use. one of the important things that the patman tool does is re-create the ChangeLog entry at the _top_ of the relevant ChangeLog file, and also it updates the date. then, it goes through looking for the files listed in the ChangeLog, and splits them out of the svn diff (yes, there's a diff/patch parser included in the tool) also, it looks for the first https://bugs.webkit.org entry, parses the number and then spits out the re-formatted patches in to a file patches/patch.<bugnumber>.txt then, if you want to submit the patch as an attachment, run patman/poemposter.py (yes, that's where the code came from - poem posting :) with the following arguments: bugnumber 'bugdescription' [optional review flag - use ? to request review] the [daftly-named] poemposter.py will search for the file patches/patch.{bugnumber}.txt and will upload it automatically to bugs.webkit.org, to the requested bugreport. you will need to create a file login.txt with: user: <email address> pass: <bugzilla password> as this is a bit of a hack-job, you will need to do "svn diff > f" - patman/patchsplit.py doesn't accept any arguments yet, it just assumes that there is a file "f" in the current working directory. also, the tool must be run from the top-level webkit svn. but, it should prove to be incredibly useful to those people submitting bugreports for review, and save a great deal of time. also, the patch-parsing system on its own might prove to be useful for the commit queue processing, as it is capable of splitting out the contents of patches e.g. individual ChangeLog entries. you can see the process by which the ChangeLog entry is re-created as a diff (see use of FakeChangeSet) that is always at the top of the file. l.

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Fwd: WebKit and Khronos Group
by Adam Barth 09 Aug '09

09 Aug '09

Resending from the proper address even though Maciej already answered your question. Adam ---------- Forwarded message ---------- From: Adam Barth <abarth(a)eecs.berkeley.edu> Date: Sat, Aug 8, 2009 at 11:39 PM Subject: Re: [webkit-dev] WebKit and Khronos Group To: Harry Underwood <raynenamibia(a)gmail.com> Cc: Jeremy Orlow <jorlow(a)chromium.org>, webkit-dev(a)lists.webkit.org On Sat, Aug 8, 2009 at 11:14 PM, Harry Underwood<raynenamibia(a)gmail.com> wrote: > So what you're also saying is that the combination of CSS 3D Transforms in > Animations with SVG (resulting, I'm assuming, in SVG-transformed animation > through CSS styling) does not translate or correlate to what either WebGL or > O3D are meant to do, even though O3D and SVG are both retained mode APIs? Yes. For example, O3D lets you specify a light source and a bump map for objects whereas this API would not. Also O3D gives you access to hardware accelerated pixel shaders. > And you're also saying that it isn't the intention of WebKit's > implementation (or Apple's Working Draft) of SVG Transforms (as > per http://www.w3.org/TR/SVG-Transforms/ ) to allow for the construction and > styling of full scenes and models like those in O3D? I can't speak for Apple, but that would be quite surprising. If you're interested in this topic, you might be interested in reading about Cg and the O3D shading language: http://developer.nvidia.com/page/cg_main.html http://code.google.com/apis/o3d/docs/shadinglanguage.html > The draft has a > combination of CSS transitions, CSS Animations and CSS 3D to plug into SVG, > so it would seem like any composition using SVG Transforms could accomplish > mostly with CSS what O3D accomplishes with JavaScript (unless I'm not > reading it correctly). There's a lot more to 3D rendering than transitions, animations, and transforms. In particular, 3D is largely about framing your drawing in a way that your graphics hardware can be blazingly fast. That's way most modern 3D drawing APIs use something akin to glDrawElements: http://code.google.com/apis/o3d/docs/reference/classo3d_1_1_draw_element.ht… This API is usually the fastest possible way to send geometry information from main memory to the GPU. Adam

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