Re: escape sequence for 'Ic' terminal capability
Peter Pentchev writes:
> On Tue, Jan 09, 2001 at 10:05:01AM +0200, Peter Pentchev wrote:
> > I'm thinking of messing with the syscons ioctl handler to allow setting
> > of color values - all EGA- and VGA-compatible video controllers allow this.
> > The idea is to later define my termcap(5) entry to let ncurses deal with
> > color setting.
> >
> > termcap(5) lists the 'cc' - 'can change color' and 'Ic' - 'initialize color'
> > capabilities. Setting the boolean 'cc' is easy, 'Ic' however presents a bit
> > of a problem to me - does anyone know what it is set to on any other terms
> > so I can keep a bit of compatibility here, or do I just randomly pick an esc
> > sequence, and lead on a happy existence until someone else defines this same
> > esc sequence to do something else? :)
>
> OK, since I started this thread, I got several suggestions, mainly
> pointing me at the FBIO_{GET,SET}PALETTE console ioctl's. I still
> need the 'Ic' capability to transfer the color information across
> network connections (yes, both machines will be running fbsd with
> identical kernel/userland local mods).
>
> So my original question still stands: has anybody seen the 'Ic'
> capability actually used in some OS's termcap, so I can borrow
> the sequence with an eye on compatiblity, or has 'Ic' been just
> a nice idea that nobody has bothered to implement?
Look at http://www.tuxedo.org/~esr/terminfo/
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Re: escape sequence for 'Ic' terminal capability
On Tue, Jan 09, 2001 at 10:05:01AM +0200, Peter Pentchev wrote:
> Hi,
>
> I'm thinking of messing with the syscons ioctl handler to allow setting
> of color values - all EGA- and VGA-compatible video controllers allow this.
> The idea is to later define my termcap(5) entry to let ncurses deal with
> color setting.
>
> termcap(5) lists the 'cc' - 'can change color' and 'Ic' - 'initialize color'
> capabilities. Setting the boolean 'cc' is easy, 'Ic' however presents a bit
> of a problem to me - does anyone know what it is set to on any other terms
> so I can keep a bit of compatibility here, or do I just randomly pick an esc
> sequence, and lead on a happy existence until someone else defines this same
> esc sequence to do something else? :)
OK, since I started this thread, I got several suggestions, mainly
pointing me at the FBIO_{GET,SET}PALETTE console ioctl's. I still
need the 'Ic' capability to transfer the color information across
network connections (yes, both machines will be running fbsd with
identical kernel/userland local mods).
So my original question still stands: has anybody seen the 'Ic'
capability actually used in some OS's termcap, so I can borrow
the sequence with an eye on compatiblity, or has 'Ic' been just
a nice idea that nobody has bothered to implement?
G'luck,
Peter
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Re: escape sequence for 'Ic' terminal capability
On Tue, Jan 09, 2001 at 06:24:30PM +0900, Kazutaka YOKOTA wrote: > > >On Tue, Jan 09, 2001 at 05:32:29PM +0900, Kazutaka YOKOTA wrote: > >> syscons is already capable of changing forground and background colors > >> via escape sequences. Is it not sufficient for your intended > >> application? > >> > >> Kazu > >> > > > >Since I received the same question in private mail more than once, > >I guess I'll have to clarify. What I'm after is not exactly color > >changes, but *palette* changes - changing the RGB/HLS components > >of an existing color index, in order to display a new color. > > > >I'm writing a full-screen interactive console application (and yes, > >it has to be a console app for many reasons). One of the design > >requirements is a customizable palette, so users can have some say > >about what they'll be staring at for hours day after day :) > > In that case, have you looked at ioctls defined in /usr/include/sys/fbio.h: > FBIO_GETPALETTE and FBIO_SETPALETTE? > > Kazu Yes, I have, and I'm considering reusing that code, or possibly calling it. However, I still wonder why there isn't an escape sequence interface - kinda hard to specify ioctl's in termcap(5) :) -- G'luck, Peter -- This inert sentence is my body, but my soul is alive, dancing in the sparks of your brain. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: escape sequence for 'Ic' terminal capability
>On Tue, Jan 09, 2001 at 05:32:29PM +0900, Kazutaka YOKOTA wrote: >> syscons is already capable of changing forground and background colors >> via escape sequences. Is it not sufficient for your intended >> application? >> >> Kazu >> > >Since I received the same question in private mail more than once, >I guess I'll have to clarify. What I'm after is not exactly color >changes, but *palette* changes - changing the RGB/HLS components >of an existing color index, in order to display a new color. > >I'm writing a full-screen interactive console application (and yes, >it has to be a console app for many reasons). One of the design >requirements is a customizable palette, so users can have some say >about what they'll be staring at for hours day after day :) In that case, have you looked at ioctls defined in /usr/include/sys/fbio.h: FBIO_GETPALETTE and FBIO_SETPALETTE? Kazu To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: escape sequence for 'Ic' terminal capability
On Tue, Jan 09, 2001 at 05:32:29PM +0900, Kazutaka YOKOTA wrote: > syscons is already capable of changing forground and background colors > via escape sequences. Is it not sufficient for your intended > application? > > Kazu > Since I received the same question in private mail more than once, I guess I'll have to clarify. What I'm after is not exactly color changes, but *palette* changes - changing the RGB/HLS components of an existing color index, in order to display a new color. I'm writing a full-screen interactive console application (and yes, it has to be a console app for many reasons). One of the design requirements is a customizable palette, so users can have some say about what they'll be staring at for hours day after day :) G'luck, Peter -- This sentence contradicts itself - or rather - well, no, actually it doesn't! > >Hi, > > > >I'm thinking of messing with the syscons ioctl handler to allow setting > >of color values - all EGA- and VGA-compatible video controllers allow this. > >The idea is to later define my termcap(5) entry to let ncurses deal with > >color setting. > > > >termcap(5) lists the 'cc' - 'can change color' and 'Ic' - 'initialize color' > >capabilities. Setting the boolean 'cc' is easy, 'Ic' however presents a bit > >of a problem to me - does anyone know what it is set to on any other terms > >so I can keep a bit of compatibility here, or do I just randomly pick an esc > >sequence, and lead on a happy existence until someone else defines this same > >esc sequence to do something else? :) > > > >G'luck, > >Peter > > > To Unsubscribe: send mail to [EMAIL PROTECTED] > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
Re: escape sequence for 'Ic' terminal capability
syscons is already capable of changing forground and background colors via escape sequences. Is it not sufficient for your intended application? Kazu >Hi, > >I'm thinking of messing with the syscons ioctl handler to allow setting >of color values - all EGA- and VGA-compatible video controllers allow this. >The idea is to later define my termcap(5) entry to let ncurses deal with >color setting. > >termcap(5) lists the 'cc' - 'can change color' and 'Ic' - 'initialize color' >capabilities. Setting the boolean 'cc' is easy, 'Ic' however presents a bit >of a problem to me - does anyone know what it is set to on any other terms >so I can keep a bit of compatibility here, or do I just randomly pick an esc >sequence, and lead on a happy existence until someone else defines this same >esc sequence to do something else? :) > >G'luck, >Peter To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
escape sequence for 'Ic' terminal capability
Hi, I'm thinking of messing with the syscons ioctl handler to allow setting of color values - all EGA- and VGA-compatible video controllers allow this. The idea is to later define my termcap(5) entry to let ncurses deal with color setting. termcap(5) lists the 'cc' - 'can change color' and 'Ic' - 'initialize color' capabilities. Setting the boolean 'cc' is easy, 'Ic' however presents a bit of a problem to me - does anyone know what it is set to on any other terms so I can keep a bit of compatibility here, or do I just randomly pick an esc sequence, and lead on a happy existence until someone else defines this same esc sequence to do something else? :) G'luck, Peter -- This sentence was in the past tense. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
