Re: X11 and speed
Re: X11 and speed
- Subject: Re: X11 and speed
- From: Sean Ahern <email@hidden>
- Date: Thu, 26 Jun 2003 09:36:35 -0700
Daniel Berlin wrote:
> Actually, this is only true if speedup due to hardware
> acceleration/optimization that Quartz does given the Quartz drawing
> primitives called by the X11 server is either
> 1. Less than the overhead of calling through Quartz in the first place
> or
> 2. Not as good as the normal hardware acceleration layer XFree86 uses
> natively.
>
> The second seems unlikely. Quartz's handling is probably quite a bit
> more advanced.
> The first is a possibility.
>
> But in short, your statement is only true if Quartz isn't doing anything
> internally to the primitives.
If I understand what you're saying, you're making the claim that doing things
through the Quartz layer may give you speed advantages because it is going
through a different, possibly faster, path to the video hardware.
I guess I can see the argument, but I'm skeptical that it's true. However, I
have no empirical evidence to say that doing an operation through raw XFree86
on darwin is faster than doing the equivalent operation in Quartz.
It would be interesting to find out, though!
-Sean
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