On Thu, 8 Jul 1999, Mikl[ISO-8859-1] ós Fazekas wrote:
> I'm just wondering if it's always necessary to maintain a copy of the
> texture in Mesa?
> Couldn't it avoided in some ways?
I think we had this discussion before - and the answer is that the
driver really does have to keep a copy.
If you run out of texture memory, you need to overwrite an old texture with
a new one. If you don't keep a copy of the texture back in Mesa then you
would have to suck the old one back out of the hardware....which is either
very slow - or potentially impossible (on some hypothetical hardware).
There are also some issues with partial sub-textures being loaded and
the need to do software fall-backs for some rendering modes that the
hardware can't manage by itself.
Steve Baker (817)619-2657 (Vox/Vox-Mail)
Raytheon Systems Inc. (817)619-2466 (Fax)
Work: [EMAIL PROTECTED] http://www.hti.com
Home: [EMAIL PROTECTED] http://web2.airmail.net/sjbaker1
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