Subject: None
To: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: tech-kern
Date: 04/21/1997 07:34:38
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> And any X server newer than a few years supports the
> MIT-SHM-Extension.  It allows knowledgable clients which are on the
> local machine two write directly into the graphics board RAM in a
> controlled manner (_if_ the graphics board RAM is mapped into the
> CPU's memory space).  For example, mpeg_play does this.

It does?  That's not how I thought MIT-SHM worked.  I was under the
impression it shared pixmap contents, not window contents, with the
client - the server must still copy from the pixmap to the window, but
the image at least doesn't have to be serialized over the X connection.

However, MIT-SHM is not a shared-memory transport, which is what I read
the initial query as asking for.

					der Mouse

			       mouse@rodents.montreal.qc.ca
		     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B

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