24-bit color support to Xvnc
paresh masani
masaniparesh "at" gmail.com
Wed Jun 18 15:06:01 2008
Thanks a lot James for your help. I got it..
Thanks,
Paresh.
On 6/18/08, James Weatherall <jnw "at" realvnc.com> wrote:
>
> Sorry, what I should have said was probably:
>
> There is no such thing as depth 32 (to a close approximation). What you
> probably mean by depth 32 is actually depth 24 with 32 bits per pixel, so
> you should specify depth 24 when starting your VNC Server to get what you
> want.
>
> Cheers,
>
> --
> Wez @ RealVNC Ltd
>
>
> > -----Original Message-----
> > From: paresh masani [mailto:masaniparesh "at" gmail.com]
> > Sent: 18 June 2008 14:43
> > To: James Weatherall
> > Cc: vnc-list "at" realvnc.com
> > Subject: Re: 24-bit color support to Xvnc
> >
> > James,
> >
> > Then it should display proper VNC session while i uses
> > "vncserver -depth 32" but I could see that it displays VNC
> > session as a complete black screen. I am not able to see anything.
> >
> > Thanks,
> > Paresh
> >
> >
> > On 6/18/08, James Weatherall <jnw "at" realvnc.com> wrote:
> >
> > Hi Paresh,
> >
> > What most people mean by depth 32 is actually depth 24 with 32
> > bits-per-pixel, which is what VNC server uses for depth 24.
> >
> > Cheers,
> >
> > --
> > Wez @ RealVNC Ltd
> >
> >
> > > -----Original Message-----
> > > From: paresh masani [mailto:masaniparesh "at" gmail.com]
> > > Sent: 18 June 2008 13:04
> > > To: James Weatherall
> > > Cc: vnc-list "at" realvnc.com
> > > Subject: Re: 24-bit color support to Xvnc
> > >
> > > Hey James,
> > >
> > > Thaks you were right my vncviewer was running at 16-bpp. now
> > > i set it to 32 bits. And ""vncserver -depth 24" showing the
> > > correct info but "vncserver -depth 32" not. I think it should
> > > work for 32 bit also right?
> > >
> > > Please refer the attached images.
> > >
> > > Thanks,
> > > Paresh
> > >
> > > On 6/18/08, paresh masani <masaniparesh "at" gmail.com> wrote:
> > >
> > > Ok James,
> > >
> > > I have removed pixelformat at all and using "vncserver
> > > -depth 8", "vncserver -depth 16" and "vncserver -depth 24"
> > > created three sessions. For depth 8 and 16, Xvnc info dialog
> > > box showing correct info but for depth 24 it is showing
> > > default 24 depth but pixel format 16. :-(
> > >
> > > Please refer the attached xwininfo dialog box for all
> > > three sessions.
> > >
> > > Is it related to RGB565. because i could see that when
> > > i specified depth 16, it uses RGB565 and same it is uses for
> > > depth 24 even though default server depth is 24 BGR888.
> > >
> > >
> > > Thanks,
> > > Paresh
> > >
> > >
> > > On 6/18/08, James Weatherall <jnw "at" realvnc.com> wrote:
> > >
> > > Hi Paresh,
> > >
> > > Tow points:
> > >
> > > 1. You're specifying "-depth 24" but then
> > > overriding that with "-pixeformat
> > > rgb888". You only need one or the other.
> > >
> > > 2. The VNC Viewer's Connection Info dialog
> > > provides the Server format and
> > > the format currently in-use. The format
> > > currently in-use can never be
> > > higher colour-depth than the format of the
> > > viewer computer's display. From
> > > what you've described it sounds like your
> > > viewer is running on 16bpp display
> > > hardware.
> > >
> > > Cheers,
> > >
> > > --
> > > Wez @ RealVNC Ltd
> > >
> > >
> > > > -----Original Message-----
> > > > From: paresh masani
> > [mailto:masaniparesh "at" gmail.com]
> > > > Sent: 18 June 2008 12:35
> > > > To: James Weatherall
> > > > Cc: vnc-list "at" realvnc.com
> > > > Subject: Re: 24-bit color support to Xvnc
> > > >
> > > > That what i am doing. Please refer
> > below command in
> > > >
> > > > Xvnc :10 -desktop 'UNIX" -httpd
> > > /usr/local/vnc/classes -auth
> > > > /.Xauthority -geometry 1268x896 -depth 24
> > > -pixelformat RGB888
> > > > -rfbwait 30000 -rfbauth /passwd -pn -fp
> > > >
> > > > Here specified depth is 24 then also i am
> > > getting pixel
> > > > formate depth is 16. Please refer
> > attached file.
> > > >
> > > > Thanks,
> > > > Paresh
> > > >
> > > >
> > > > On 6/18/08, James Weatherall
> > <jnw "at" realvnc.com> wrote:
> > > >
> > > > Paresh,
> > > >
> > > > Please refer to the
> > documentation for details on
> > > > configuring the Xvnc VNC
> > > > Server for Unix, in particular the
> > > "-depth" option,
> > > > which controls the
> > > > colour depth of the root window of the
> > > X desktop. E.g:
> > > >
> > > > vncserver -depth 24
> > > >
> > > > Will create a true-colour 32
> > > bits-per-pixel, depth 24
> > > > desktop, with 8 bits
> > > > for each of the red, green and blue
> > > colour components.
> > > >
> > > > Regards,
> > > >
> > > > --
> > > > Wez @ RealVNC Ltd
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: vnc-list-admin "at" realvnc.com
> > > > > [mailto:vnc-list-admin "at" realvnc.com]
> > > On Behalf Of paresh masani
> > > > > Sent: 16 June 2008 11:39
> > > > > To: vnc-list "at" realvnc.com
> > > > > Subject: 24-bit color support to Xvnc
> > > > >
> > > > > Hi,
> > > > >
> > > > > I read documentation of Xvnc and
> > > found that it uses cfb(color
> > > > > frame buffer).
> > > > > It supports only 8, 16 and 32 bit
> > > colore and dont have
> > > > > support for 24-bit color and 64-bit
> > > color. Could any one
> > > > > please tell me why it is like this.
> > > 24 and 64-bit color
> > > > > support does not required?
> > > > >
> > > > > Thanks,
> > > > > Paresh
> > > > >
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