Hey Martyn,

That would be a great direction!   Certainly Adobe is doing that. Compatibility across all platforms is virtually assured.   Although, then you must deal with multiple browsers.

Btw, I've been working with the HTML5 Websockets full-duplex protocol lately.  There is a "canvas" property they used for rendering games and other graphical effects.  Still, I'm not sure how you'd get the computational power to a reasonable level, since I'm sure something like Audacity requires quite a bit!


From: Martyn Shaw <martynshaw99@gmail.com>
To: Thales <thaleslv@yahoo.com>; audacity-devel@lists.sourceforge.net
Sent: Sunday, September 29, 2013 7:56 PM
Subject: Re: [Audacity-devel] OpenGL for Rendering Waveforms, etc?


I think that any change to the graphical layout of Audacity would be
towards an html thing.  The desktop version of most software is
probably a dead-end in the 'new world' of cloud-based software.


On 29/09/2013 01:02, Thales wrote:
> ----------------------------------------------------------------------
> *From:* Campbell Barton <ideasman42@gmail.com>
> *To:* Thales <thaleslv@yahoo.com>; audacity-devel@lists.sourceforge.net
> *Sent:* Saturday, September 28, 2013 4:19 AM
> *Subject:* Re: [Audacity-devel] OpenGL for Rendering Waveforms, etc?
> On Sat, Sep 28, 2013 at 1:18 AM, Thales <thaleslv@yahoo.com> wrote:
>  > Hello Campbell,
>  >
>  > I don't know off hand, but judging by the interfaces for packages
> like Adobe
>  > Audition and Pro Tools, I'm guessing they are using either DirectX or
>  > OpenGL.
>  >
>  >
>  > Here are several screenshots from both Audio Edition and Pro Tools:
>  >
> http://images.amazon.com/images/G/01/software/detail-page/B004TCG89C-1.jpg
>  >
> http://www.renderosity.com/adobe-audition-3-the-best-just-got-better-cms-13972
>  > http://www.heise.de/software/screenshots/315.jpg
>  > http://fire-software.blogspot.com/2011/02/avid-pro-tools-9-windows.html
>  >
> http://goprotools.com/blog/wp-content/uploads/2010/10/m_audio_pro_tools_recording_studio_5a.png
>  >
>  > The rich colors, sharp details, transparent images, free form
> layouts, etc.,
>  > make me think they're using OpenGL or DX!  :-)
>  >
>  >
>  > Thanks,
>  > ...John
> "Hi John, note that I'm not speaking as part of the Audacity team (I
> only did minor patches so far),
> but I think you approach it backwards."
>    Same here! :-)
> "Rather then say "theres a shiny technology - lets use it", Id approach
> from other direction.
> - Audacity is limited because "..."
> - It can be solved by "..." (improved drawing I assume?)
> - Improved/Advanced drawing can be achieved by "..."
> I'd actually be surprised if all the applications you linked to are
> using OpenGL/DirectX,
> Its quite feasible to have smooth lines without hardware acceleration."
>    Are you sure?  All graphics cards should supply OpenGL and DX
> drivers, since they are the standard libraries used for graphics for
> games and other graphically intense applications.  It would be very
> hard to do anything beyond the basics graphically without writing
> routines that are compatible across all cards.
> "Also don't under estimate the potential of cheap laptop hardware and
> buggy drivers to perform baddly with OpenGL,
> especially 2D functions which are sometimes done in software anyway
> (cheap cards tend to do this since games don't use them)."
>    Well, games do use cheap cards.  It's just that if you want the
> cutting edge games you'll need a more high end card.
> "It depends on the scope of the task but you might end up having to
> check for different opengl hardware and implement workarounds for
> known bugs. thats in fact very common in projects using OpenGL.
> Such bugs are incredible annoying since often the developers can't
> redo them and users complain that their interface is broken."
>      That's true.  Bugs will always be an issue.
> "Long term - I wouldn't assume this to be a straightforward task or
> even a net gain.
> Suggest you first define the problem - then solutions can be considered,
> though unless a developer plans to pick up this project, it probably
> ends up being a lot of noise with no outcome."
>      Well, this really came to me since I've been working on the pan
> envelope feature.    I've done quite a bit of work with graphics and
> OpenGL/DX, and thought that OpenGL would provide a great tool by which
> to create an effective pan envelope, and I see it working the same for
> many features.    It would give you a practical advantage over
> WxWidgets in terms of flexibility of interface and quality
> renderings.  Quality renderings can improve functionality, because
> being able to see things in visual space clearly adds a lot.
>    However, having said that, there is no doubt this wouldn't be a
> small change and there are always down sides.    I just wanted to
> throw this out there to see how people would respond.
> Thanks for the feedback, Campbell!!
>    ...John
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