Stephan Aßmus 315ab3328e Small test-app playing ground for text rendering
The test app currently shows a number of problems in text rendering

 * Above a certain font-size, there is no glyph caching, which
   also means there is no sub-pixel filtering. It is actually
   the same problem right now for all vector-drawing. It uses the
   sub-pixel rendering pipeline, but without any filtering.
 * This test feels very sluggish. Something is going on which seems
   to be very unoptimized. To be observed when resizing the window
   and causing redraws.
 * Overlapping glyphs are handled wrongly in B_OP_COPY mode. The
   problem is that glyphs are drawn one at a time, but B_OP_COPY
   also draws the background color. In case some pixels already
   drawn with the text color by one glyph are drawn again by the
   next glyph, but with the background color, then it looks like
   gaps in the text. This problem has always existed. With the
   double filtering that was recently fixed, it was just especially
   visible, since, due to the smearing, it was much more likely that
   there were extra background pixels at the left side of glyphs.
   (Right side, too, but without visual effect.) Of course not
   completely transparent pixels, those are not drawn, but almost
   transparent pixels.

Change-Id: If590a4c93983c5a3ff0772c19074c408be8e1e74
Reviewed-on: https://review.haiku-os.org/c/871
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
2019-01-11 16:51:27 +00:00
2019-01-10 12:32:33 -05:00
2019-01-09 17:44:19 +00:00
2018-01-04 00:04:02 -06:00
2018-11-23 00:06:23 -05:00

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.

Contributing to our infrastructure

See Infrastructure.

Description
The Haiku operating system
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