July 2012 - Pro-apps-dev - lists.apple.com

Re: FxPlug: Invalid Context with NSString drawInRect
by Paul Schneider 09 Jul '12

09 Jul '12

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Re: FxPlug: Invalid Context with NSString drawInRect
by Darrin Cardani 09 Jul '12

09 Jul '12

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Re: FxPlug: Invalid Context with NSString drawInRect
by Christoph Vonrhein 09 Jul '12

09 Jul '12

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Re: FxPlug: Invalid Context with NSString drawInRect
by Darrin Cardani 09 Jul '12

09 Jul '12

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Re: FxPlug: Invalid Context with NSString drawInRect
by Christoph Vonrhein 09 Jul '12

09 Jul '12

It's part of the rendering. Is there a better way to render text to a FxPlug plugin's output? Christoph On Jul 9, 2012, at 11:35 AM, Darrin Cardani wrote: Darrin On Jul 7, 2012, at 9:40 AM, Christoph Vonrhein wrote: Hello Darrin (and everybody else), This also happens when I try to draw text to a pBuffer. Any ideas? Christoph Vonrhein --- OSX 10.6.8 FCP X Motion 5 _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/dcardani%40apple.com This email sent to dcardani(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com I'm working on some FxPlug plugins for Motion 5 / FCP X. One thing I want to do is to render text into the plugins output. Imagine that I want to create something like a "Lower 3rd" or a "Timecode Overlay" plugin. I already have the text as a NSString, but it can also be a simple CString. I was trying to draw the text to the regular output image buffer with the regular [NSString drawInRect: withAttributes:] (or drawAtPoint:) method: https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ ApplicationKit/Classes/NSString_AppKitAdditions/Reference/Reference.html The code compiles, but when it runs I get lots of CGL errors (invalid context 0x0) in the console for each call of the drawInRect method. I don't get any crashes... just the error messages in the console. I know how to use the drawInRect method. I did it many times in my other applications. It just does not want to work in a FxPlug plugin. When using a pBuffer, does glGetError() return anything? Have you tried running with OpenGL Profiler? The error happens when the drawInRect method is called... and not when any of the PBuffer commands are called. Can you give some more details? I don't understand where you're trying to draw the string using [NSString drawInRect:withAttributes:]. Is this in a custom parameter, or as part of rendering? When using a pBuffer, does glGetError() return anything? Have you tried running with OpenGL Profiler? I am trying to draw some text on the screen in a FxPlug plugin with the [NSString drawInRect: withAttributes] method. In continuously wind up with lots of "invalid context 0x0" error messages in the console.

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Re: FxPlug: Invalid Context with NSString drawInRect
by Darrin Cardani 09 Jul '12

09 Jul '12

Can you give some more details? I don't understand where you're trying to draw the string using [NSString drawInRect:withAttributes:]. Is this in a custom parameter, or as part of rendering? When using a pBuffer, does glGetError() return anything? Have you tried running with OpenGL Profiler? Darrin On Jul 7, 2012, at 9:40 AM, Christoph Vonrhein wrote: > Hello Darrin (and everybody else), > > I am trying to draw some text on the screen in a FxPlug plugin with the [NSString drawInRect: withAttributes] method. In continuously wind up with lots of "invalid context 0x0" error messages in the console. > > This also happens when I try to draw text to a pBuffer. > > Any ideas? > > Christoph Vonrhein > > --- > OSX 10.6.8 > FCP X > Motion 5 > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/pro-apps-dev/dcardani%40apple.com > > This email sent to dcardani(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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FxPlug: Invalid Context with NSString drawInRect
by Christoph Vonrhein 07 Jul '12

07 Jul '12

Hello Darrin (and everybody else), This also happens when I try to draw text to a pBuffer. Any ideas? Christoph Vonrhein --- OSX 10.6.8 FCP X Motion 5 _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com I am trying to draw some text on the screen in a FxPlug plugin with the [NSString drawInRect: withAttributes] method. In continuously wind up with lots of "invalid context 0x0" error messages in the console.

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