webpositive

WebKit weekly report #36

Blog post by PulkoMandy on Fri, 2014-06-27 07:37

Hello everyone,

Things are rather quiet on the WebKit side this week. I'm reviewing and fixing the remaining bugs with the new drawing code, which is now working rather well. On the WebKit side, I have implemented a limited form of transform support for regions (only handling translation and scaling, not shear and rotations), which has very good results. As a consequence, we now have mostly correct drawing and quite good performance. Before I do a release (I know the version in current nightlies is quite outdated now), I want to fix one more bug, which is the lack of video display on youtube. This is probably a simple fix once I understand why the current code isn't working anymore.

WebKit weekly report #35

Blog post by PulkoMandy on Fri, 2014-06-20 07:56

Hello world, another update!

The most exciting news this week is that I enabled the CSS JIT on Haiku. This is a new feature in WebKit that applies the same optimization techniques used for JavaScript, to CSS. CSS is becoming a complex language, and matching elements in the page with CSS rules and selectors can take a lot of time with complex stylesheets. WebKit will now use a JIT to compile CSS rules, which allows faster matching, and thus faster layout and rendering of the page. Since this uses mostly the same code as JS, enabling it was just a matter of switching the flag on in the webkit compile-time configuration.

WebKit weekly report #34

Blog post by PulkoMandy on Fri, 2014-06-06 06:53

Hello there,

app_server optimizations

Work on WebKit continued this week. In the previous report, I mentioned several issues with the new tiled rendering. Most of them turned out to be either problems in app_server or misuse of the APIs in the WebKit code. The most important part was that WebKit used region clipping and expected the region to be transformed when using SetTransform; however, with the current design, region clipping isn't affected by the view transform.

WebKit weekly report #32

Blog post by PulkoMandy on Fri, 2014-05-16 12:04

Hello everyone,

I spent most of the week working on the texture mapper drawing code. I spent a lot of time tweaking the options (each change requires a complete build of Web+, so this added up to a lot of time...), and today I got the texture mapper to display something in a BWindow.

WebKit weekly report #31

Blog post by PulkoMandy on Fri, 2014-05-09 06:22

Hello everyone.

Well, just got confirmation from Haiku, Inc. that I can continue working on this during May. Thanks to everyone who donated money to Haiku, Inc. for making this possible!

As mentioned last week, I'm working on fixing the flickering and missing rendering on some pages. I didn't get very good results yet, but I can at least give you an overview of the different ways WebKit can render things on screen.

WebKit weekly report #30

Blog post by PulkoMandy on Fri, 2014-05-02 06:51

Hello everyone,

Not so much exciting things this week...

Well, good news first, on wednesday I uploaded HaikuWebkit 1.3.1 packages. It should be more stable than the previous releases, and includes work from the last 3 weeks including some more bugfixes for audio/video support, working web socket support, and many smaller fixes.

WebKit weekly report #29

Blog post by PulkoMandy on Fri, 2014-04-25 07:26

Hello world!

Work continues on the testsuite: I found one bug in the testsuite system that greatly improved the results. Things are now properly reset between each test, which avoids many of the issues I was having. The last test run breaks down as follows:

  • 2 unexpected crashes
  • 2300 unexected failures
  • 400 unexpected successes
  • 5000 tests have no reference
  • And the remaining 30000 or so tests are now properly tagged

I will continue marking the failing tests as expected to fail, and review them in case I find one that's easy to fix. The 5000 "no references" tests are easily fixed, we just need to generate a reference rendering of the page. This is because these tests have platform-specific results, so there is no common reference for all platforms, and we need a haiku-specific one.

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