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Re: CVOpenGLBuffer Question

Subject: Re: CVOpenGLBuffer Question
From: "Jonathan Cochrane" <email@hidden>
Date: Tue, 1 Jul 2008 17:51:48 +0100
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The apps have a long history... so wrapping them into one would require significant effort ! Its the last resort...

I have implemented a solution using CGWindowListCreateImage, but the GPU pixel read back performance hit is unacceptable.

I guess i'm stubborn too.. there has to be a solution, but not at the application level.

I'd also found a link to a patent which seems to achieve something similar

http://www.freshpatents.com/Method-and-system-for-parent-child-application-integration-dt20070329ptan20070074181.php

thanks again
JC

On Tue, Jul 1, 2008 at 5:43 PM, Christopher Wright <email@hidden> wrote:

BTW, the thread that prompted me to ask the question in the first place is here:

http://lists.apple.com/archives/quartzcomposer-dev/2006/Feb/msg00065.html

That's an example of intra-app -- the VJ application has its own QCRenderer, so it can pass stuff to it simply. This is a pretty common design, and it's extraordinarily fast :) That's why I suggested wrapping both apps into one, so it would work like this :)

Is this possible for your needs? There are a bunch of talented people on this list that can make such data sharing a piece of cake for you in this context.

--
[ christopher wright ]
email@hidden
http://kineme.net/

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References:
	>CVOpenGLBuffer Question (From: "Jonathan Cochrane" <email@hidden>)
	>Re: CVOpenGLBuffer Question (From: Christopher Wright <email@hidden>)
	>Re: CVOpenGLBuffer Question (From: vade <email@hidden>)
	>Re: CVOpenGLBuffer Question (From: Christopher Wright <email@hidden>)
	>Re: CVOpenGLBuffer Question (From: "Jonathan Cochrane" <email@hidden>)
	>Re: CVOpenGLBuffer Question (From: Christopher Wright <email@hidden>)

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