[haiku-appserver] Re: moving windows using 2D HW ACC

  • From: Adi Oanca <adioanca@xxxxxxxxxxxxx>
  • To: haiku-appserver@xxxxxxxxxxxxx
  • Date: Tue, 18 Jan 2005 19:19:25 +0200


Rudolf wrote:
>>      In the mean time I would like your opinions regarding those:
>>1. See which is the biggest rectangle in the new window's visible 
>>and use 2D ACC to copy from old location.
> Correct.
>>Then copy all other rectangles 
> All smaller rectangles of course can be copied using 2D acc as well. 
> You simple make a list of all parts that are currently visible but need 
> to be moved. That list you send as a single ACC command.
>>by copying them into main memory and then paste to new location. 
>>is if the new location overlaps the original location, else copy each 
>>rect using HW ACC)
> Overlaps you do not need to concern yourself with. It's the task of the 
> accelerant to blit in the right direction. Just give a source and dest 
> rect list to the accelerant's command.

        Oh, yeah baby! I'm so glad to hear this!
        I'm *not* so glad :-) to admit how stupid I was. :-D I didn't even 
looked at Accelerant.h before writing this email.
        Thanks Rudolf for enlighten me!


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