nanogui: framebuffer
Subject:
Re: [nanogui] framebuffer
From:
mohanreddy.b ####@####.####
Date:
24 Jun 2008 05:56:43 -0000
Message-Id: <e61d4fe21336fec58dd15392073afdfc@localhost>
is there any another way to speed up the display screen .now for me it is
taking time to display images.
please any one give some idea.
Regards
Mohan.
On Mon, 23 Jun 2008 09:03:06 -0600, "Greg Haerr" ####@####.#### wrote:
> : Can i use two frame buffer devices(fb0 and fb1) for display
> screen
> : at a time.i have two images to draw on to the display screen.i need to
> draw
> : one image in fb0 and another one on fb1 device. is it possible display
> two
> : images at a time.
>
> No, nano-X only supports one display device at a time.
>
>
>
> : if i make any change in 1st image then i need to redraw only fb0
device.
>
> You could possibly run each server with a different FRAMEBUFFER=
> environment variable. They won't work concurrently, you'd have to run
> the first, exit, then run the second. This likely won't work well
> if there needs to be communications between them.
>
> Otherwise, you'll have to hack the server to allow communications
> to another output device. In some cases, this might be accomplished
> by just changing psd->addr after opening the second device and
> performing the ioctl to map it into server memory. Then only
> the address needs to be changed, a relatively simple operation
> with a new opcode from the client.
>
> Regards,
>
> Greg
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####
