Re: [LAD] Real-time plotting of audio/ oscilloscope.

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To: Jeremy <jeremybubs@...>
Cc: <linux-audio-dev@...>
Date: Thursday, June 17, 2010 - 5:59 pm

you could also do something with openGL that would be fairly
efficient...I know a fellow who implemented something very similar to
this for an iPhone oscilloscope.

you'll most certainly want to copy the samples into a
ringbuffer...doing the GUI work from the realtime thread is just
asking for trouble. off in the GUI thread, read the samples from the
ringbuffer and push them to the graphics card as a vertex buffer
object. should keep things pretty speedy...

-w
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Messages in current thread:
Re: [LAD] Real-time plotting of audio/ oscilloscope., Johannes Kroll, (Fri Jun 18, 5:10 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Damien Zammit, (Fri Jun 18, 12:53 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Robin Gareus, (Thu Jun 17, 2:23 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Peter Nelson, (Thu Jun 17, 7:21 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Jörn Nettingsmeier, (Thu Jun 17, 7:29 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Paul Davis, (Thu Jun 17, 8:28 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Nick Copeland, (Thu Jun 17, 8:53 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Robin Gareus, (Fri Jun 18, 1:13 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., David Olofson, (Fri Jun 18, 12:37 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Will Light, (Thu Jun 17, 5:59 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., James Morris, (Thu Jun 17, 7:57 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Philipp Überbacher, (Thu Jun 17, 8:11 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Jeremy Jongepier, (Thu Jun 17, 1:36 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Ralf Mardorf, (Thu Jun 17, 6:25 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Gene Heskett, (Thu Jun 17, 2:30 pm)
Re: [LAD] , Mike Cookson, (Thu Jun 17, 8:04 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Ralf Mardorf, (Thu Jun 17, 7:26 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Paul Davis, (Thu Jun 17, 10:41 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Gene Heskett, (Thu Jun 17, 2:48 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Ralf Mardorf, (Thu Jun 17, 7:33 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Ralf Mardorf, (Thu Jun 17, 6:41 am)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Gene Heskett, (Thu Jun 17, 2:27 pm)
Re: [LAD] Real-time plotting of audio/ oscilloscope., Ralf Mardorf, (Thu Jun 17, 6:43 am)