Julian Harnath 10df15449b app_server: plug leak of layers when empty clipping
* If there is an empty clipping region (invalid clipping) for the
  current view, a new layer could still be started, but not ended
  anymore. That's because unlike begin layer, end layer is handled in
  _DispatchViewDrawingMessage (because it can do actual drawing)
  and this method checks whether the clipping is valid and bails out
  if it isn't.

* Add an exception for the AS_VIEW_END_LAYER command code to still
  process it even when the clipping is invalid. The layer itself
  can after all set a valid clipping later on when its command list
  is played back. And even if it doesn't, we still have to play it
  to make sure nested layers are cleaned up.

* Fixes the memory leak in #12460 where webkit creates
  said situation: it had a layer open and then the closing was
  ignored due to empty clipping. All subsequent layer calls created
  nested layers in that one, hundreds of them, and their BPictures
  contained bitmaps, quickly eating up and leaking hundreds of MiB
  in app_server.
2015-11-14 16:09:49 +01:00
2015-11-14 06:39:38 +01:00
2015-10-18 10:00:02 +02:00

Haiku

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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.

Goals

  • Sensible defaults with minimal configuration required.
  • Clean, clear, concise code.
  • Unified desktop environment.

Trying Haiku

Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.

Compiling Haiku

See ReadMe.Compiling.

Contributing

Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!

Contributing code

If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.

If you're having trouble finding something in the source tree, you can use one of our OpenGrok servers:

Contributing documentation

The main piece of documentation that still needs work are the API docs (found in the tree at docs/user). Just find an undocumented class, write documentation for it, and submit a patch.

Contributing translations

See wiki:i18n.

Contributing software ports

See HaikuPorts.

Description
The Haiku operating system
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