Re: Quartz blitter/hardware support?
Re: Quartz blitter/hardware support?
- Subject: Re: Quartz blitter/hardware support?
- From: Paul Fox <email@hidden>
- Date: Wed, 26 Jun 2002 22:00:48 +0100
>
Date: Wed, 26 Jun 2002 12:07:28 -0500
>
Subject: Re: Quartz blitter/hardware support?
>
From: Darrell Walisser <email@hidden>
>
To: email@hidden
>
>
...
>
1. Quartz (really the window server), seem to sync screen updates to the
>
display refresh. This means you normally can't go faster than the screen
>
refresh rate.
>
>
2. To do a screen update, you have to synchronize with an external
>
process (the window server), which involves IPC and hence has
>
performance penalties associated with that.
>
Oh yes. And my X server running over a slot 802.11b wireless lan
(about 5mbps sustained) can do this faster even going through a TCP
connection and doing all sorts of emulation.
So, yeah, I can understand this is slow for a Mac....not.
Interesting point about the screen update limited to
screen refresh. What does this mean? That a windowFlush can only occur
max of 60 times a second?
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.