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Re: Using QTNewGWorldFromPtr() with SetTrackGWorld()

Steve, looking quickly at the (surface) code, there is nothing that
SetTrackGWorld does or doesn9t do differently with any gworld you pass it -
it simply takes the info from you, stores it, and then works with it.

I believe that things should work fine. Have you confirmed that you can
draw into/from the gworld your self? Are you locking the bits, etc?

Ando

> I'm working on some movie playback...the application wants the actual
> decompressed video for each frame (as it blits it to different in game
> windows it manages). Playback currently works fine, but I'm hoping to
> remove an unnessecary copy. Currently, I'm creating a standard GWorld and
> using SetTrackGWorld() to have QT draw into it and notify me that a new
> frame is ready. When a new frame is ready, I copy the data from the GWorld
> into an internal buffer that the app uses.
>
> I'd like to use QTNewGWorldFromPtr() to create a GWorld that points to this
> resident internal buffer. Creating this new GWorld and setting it with
> SetTrackGWorld() doesn't return any errors. But no data is actually being
> decoded into the new GWorld.
>
> Is it possible to do this? Or are GWorlds created with QTNewGWorldFromPtr()
> not really valid for passing back into the toolbox?
>
> Regards,
> Steve
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References: 
 >Re: Using QTNewGWorldFromPtr() with SetTrackGWorld() (From: "Stephen Nowalk" <email@hidden>)



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