advanceState Confusion

[_Devrim_Erdem_]

Hello,

I have got a filter plug-in which uses advanceState to read scanlines from the plugin. However I seem to have crashes related to advanceState. (Using SDK 7)

Q1. Can advanceState be called anytime in filterSelectorStart ? E.g I have got simple scanline reading loops but also loops which process a circular region. I want to call advanceState in several loops.

Q2. Is it required to reset FilterRecord in some way before starting another loop which uses advanceState ?

Thanks in advance.

Dev

[Tom Ruark]

advanceState is advancing the state from the previous state so several loops may have problems. I would look at using channel ports suite instead.

Setting the rects to 0,0,0,0 should reset advanceState but that is an 'as is' warranty statement if you know what i mean.

[_Devrim_Erdem_]

Thanks Tom,

Interestingly I couldn't find what the "state" variables are.

I have tried resetting the rects (it is hinted in the doc) but didn't really help.

Are channel ports suite a direct alternative to advanceState or shall it be used in conjunction with advanceState ? I am a bit confused there.

Thanks again.

Dev