nanogui: Shared memory + SDL
Subject:
RE: Shared memory + SDL
From:
Greg Haerr ####@####.####
Date:
23 Feb 2000 23:42:33 -0000
Message-Id: <C1962B36D9BBD311B0F80060083DFEFB06FA85@SYS.CenSoft.COM>
:
:It applies to anything that maintains an off screen buffer. With shared
:memory support, you can just blit the buffer directly onto
:screen, without
:it, you'll end up calling GrArea(), which will serialize the data over
:a Unix domain socket, and the Nano-X server will buffer it in a server
:side memory area, and then copy it onto screen.
:
No - this will only work if the application has unobstructed
access (that is, no overlapping windows) on the screen.
Otherwise, the server clip information has to be available
also. Now, this latter design is one I'm interested in,
but considerably more complicated than Vidar is
suggesting/requiring.
Greg
:So you avoid quite a few context switches, and some copies.
:
:Note that this only apply when you compile Nano-X as
:client-server. When
:you link apps directly into the server it won't make a difference.
:
:Vidar Hokstad
:
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