BlitMask question

[retropunk]

Hey there, I am wondering if I can use BlitMask for this idea.

 

I have a series of PNG files that when played in sequence is a 360 rotation of an engine. I have code that lets the user click and drag which plays the sequence forward/backward. It's basically a poor mans QTVR. So it doesn't scroll as much as it updates the rect with a new bitmap

 

I am creating another version for the iPad that uses copyPixels and cloning. It works great on the desktop but I was curious if BlitMask will do what I've described.

 

I am having memory issues so I am exploring alternatives to my own copyPixels and cloning solutions.

 

Thanks!

- Patrick

[Carl]

if you can manage to get all the frames of your animation into single bitmap I imagine BlitMask could very easily do the heavy lifting for you.

you just have to configure your dragger to offset the x position of the BlitMask's target.

 

 

I'd say give it a try. Keep in mind that although BlitMask performs great there is no way around the overhead of keeping the pixel data in memory.

[retropunk]

Thanks Carl.

 

Using copyPixels is great but the Memory thing is baffling. I can destroy the bitmaps from memory but the memory seems to increase even after I destroy the bitmaps.

For example:

1. Flash starts and memory is at 80

2. I load 10 bitmaps and use copyPixels. the memory is at 200

3. I destroy all 10 bitmaps and the memory is 90

4. I load 10 bitmaps again and use copyPixels. the memory is at 220

etc

 

Not sure how to pin pint the leak. Might be a garbage collection thing

 

Thanks for the insight though

 

rock on