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This is Moonlight, an open source implementation of Silverlight 1.0
and 2.0 for Unix systems.
See for more information.
For installation instructions, see the INSTALL file
Runtime Options
There is a couple of runtime-parameters that affect Moonlight behavior
and turn on/off certain features. Those options are specified through
the MOONLIGHT_OVERRIDES env variable. The more interesting ones are:
* shapecache=yes/no
Use some extra memory for caching shapes. Increases
memory usage but helps with performance (off by
default). The shape cache size is 6MB max.
* render=ftb/btf
Use front-to-back or back-to-front rendering (ftb is
the default).
* cache=show/hide
Show the (shape) cache usage statistics. In plugin
mode they're available through the right-click popup
menu (hide by default).
* converter=yuv/ffmpeg
Use native mmx/sse2 conversion code or ffmpeg to do
the yuv -> rgb colorspace conversion (by default we
use the native yuv code).
To launch Firefox with shape caching and ffmpeg converters use:
$> MOONLIGHT_OVERRIDES="shapecache=yes,converter=ffmpeg" firefox
Other options include:
* ms-codecs=yes/no
* ffmpeg-codecs=yes/no
Controls which sets of codecs to use, the Microsoft
ones or the ffmpeg ones.
* timesource=manual/system
Defaults to `system'.
Also if --with-debug=yes option was provided to configure script, the
MOONLIGHT_DEBUG env variable controls which debug output is printed
on the console. Valid values are:
alsa, alsa-ex, audio, audio-ex, pulse, pulse-ex, httpstreaming,
markers, markers-ex, mms, mediaplayer, mediaplayer-ex, pipeline,
pipeline-error, framereaderloop, ui, ffmpeg, codecs, dependencyobject,
downloader, font, layout, media, mediaelement, mediaelement-ex,
buffering, asf, playlist, playlist-warn, text, xaml
The C and C++ code that makes up the engine is dual-licensed
under the LGPL v2 license and is also available commercially
for developers interested in using Moonlight on embedded
systems or other systems where the end-user can not upgrade
the LGPL code on his own.
The C# tests in test/2.0/Microsoft.Silverlight.Testing are
copyrighted by Microsoft and released by them under the
open source MS-PL license.
The C# controls in class/Microsoft.SilverlightControls/ and
class/WPF.Toolkit are copyrighted by Microsoft and released by
them under the open source MS-PL license.
Technical Details
For implementation details and notes, see the NOTES file.
Test Suite
To run the test suite, make sure that the output from
configure indicates that the tests will be run. Once this is
done, you can run the tests like this:
To run the Novell tests:
cd moon/tests
./make-xephyr run-tests
To run the Microsoft tests (you need the moonlight-ms module
as a peer of moon):
cd moon/test
./make-xephyr run-ms-tests
To run the Moonlight Unit Tests:
cd moon/test/2.0/moon-unit
make test
Firefox 3
The original Silverlight.js shipped by Microsoft was incompatible
with Firefox 3. We have released a greasemonkey script
(data/silverlight-ff3-quirks.user.js) that will patch this behaviour
for some sites.
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