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Coding > Hblank + Windowing help

#25501 - Ethos - Tue Aug 24, 2004 4:25 am

I am using Windowing and shrinking the dimensions of the Window, but I am having to use timer delays. Someone once told me I could update the REG_WIN0H/REG_WIN0V during the Hblank period. Could someone show me a snippet of how this would work??

Thanks

#25702 - batblaster - Fri Aug 27, 2004 12:49 pm

You can manage the WINDOW register on hblank , open the HBLANk andler and on the beginning of Hblank interrupt tke the Vcount value after change the Window value at the specific Vcount value, with this on each line you want you can manage your window... I'm sorry but at the moment i cant write an example but if nobody do i will try to make later, i'm on beach now...

Cu...

P.S. is not very hard and if you search on this forum i think you can try some example already made from users, try to search about spotlight or onli window spot i remember some about it...
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Batblaster / 7 Raven Studios Co. Ltd
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#25717 - Ethos - Fri Aug 27, 2004 6:00 pm

batblaster wrote:
You can manage the WINDOW register on hblank , open the HBLANk andler and on the beginning of Hblank interrupt tke the Vcount value after change the Window value at the specific Vcount value, with this on each line you want you can manage your window... I'm sorry but at the moment i cant write an example but if nobody do i will try to make later, i'm on beach now...

Cu...

P.S. is not very hard and if you search on this forum i think you can try some example already made from users, try to search about spotlight or onli window spot i remember some about it...


lol...I got lazy and just decided to utilize only my vblank time, the effect works at acceptable quality there.