NetBSD Problem Report #59544

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Date: Tue, 22 Jul 2025 12:41:39 +0000 (UTC)
From: kolipe.c@exoticsilicon.com
Reply-To: kolipe.c@exoticsilicon.com
To: gnats-bugs@NetBSD.org
Subject: Add support for 256 colours to wscons
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>Number:         59544
>Category:       kern
>Synopsis:       Add support for 256 colours to wscons
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 22 12:45:00 +0000 2025
>Last-Modified:  Fri Nov 14 13:15:01 +0000 2025
>Originator:     Crystal Kolipe
>Release:        10.1-release
>Organization:
Exotic Silicon
>Environment:
>Description:
The framebuffer console only supports direct selection of eight colours, with another eight being indirectly selectable using the highlight/bold attribute.

In the case of 32-bit rasops displays, the underlying hardware supports much more.  As a first step, add support for direct selection of the bright colours for both foreground and background, as well as separately increasing the colour palette to 256.
>How-To-Repeat:

>Fix:
I posted a patch to the tech-kern mailing list to implement these two features:

https://mail-index.netbsd.org/tech-kern/2025/07/06/msg030599.html

>Audit-Trail:
From: "Nia Alarie" <nia@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/59544 CVS commit: src/sys/dev
Date: Sun, 2 Nov 2025 22:16:24 +0000

 Module Name:	src
 Committed By:	nia
 Date:		Sun Nov  2 22:16:24 UTC 2025

 Modified Files:
 	src/sys/dev/rasops: rasops.c rasops.h rasops_putchar.h
 	src/sys/dev/wscons: wsdisplayvar.h wsemul_vt100_subr.c

 Log Message:
 wscons(4): Add support for 256 colours to VT100 emulation

 Also implemented are CSI 90-97 and CSI 100-107 to set the bright
 versions of the regular eight colours directly.

 wscons already has full support of 8/16/24/32-bit displays (and
 can take advantage of them for antialiased fonts), but increasingly
 command-line applications are built to take advantage of colours beyond
 the standard 8 provided by the ANSI escape codes. These extensions are
 not generally standardized, but xterm serves as a de-facto standard.

 Patch from Crystal Kolipe, adjusted slightly to work on 16-bit and
 24-bit displays by me.

 PR kern/59544


 To generate a diff of this commit:
 cvs rdiff -u -r1.128 -r1.129 src/sys/dev/rasops/rasops.c
 cvs rdiff -u -r1.51 -r1.52 src/sys/dev/rasops/rasops.h
 cvs rdiff -u -r1.8 -r1.9 src/sys/dev/rasops/rasops_putchar.h
 cvs rdiff -u -r1.57 -r1.58 src/sys/dev/wscons/wsdisplayvar.h
 cvs rdiff -u -r1.34 -r1.35 src/sys/dev/wscons/wsemul_vt100_subr.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

From: "Martin Husemann" <martin@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/59544 CVS commit: [netbsd-11] src/sys/dev
Date: Fri, 14 Nov 2025 13:12:27 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Fri Nov 14 13:12:27 UTC 2025

 Modified Files:
 	src/sys/dev/rasops [netbsd-11]: rasops.c rasops.h rasops_putchar.h
 	src/sys/dev/wscons [netbsd-11]: wsdisplayvar.h wsemul_vt100_subr.c

 Log Message:
 Pull up following revision(s) (requested by nia in ticket #81):

 	sys/dev/rasops/rasops.h: revision 1.52
 	sys/dev/wscons/wsemul_vt100_subr.c: revision 1.35
 	sys/dev/rasops/rasops_putchar.h: revision 1.9
 	sys/dev/rasops/rasops.c: revision 1.129
 	sys/dev/wscons/wsdisplayvar.h: revision 1.58

 wscons(4): Add support for 256 colours to VT100 emulation

 Also implemented are CSI 90-97 and CSI 100-107 to set the bright
 versions of the regular eight colours directly.
 wscons already has full support of 8/16/24/32-bit displays (and
 can take advantage of them for antialiased fonts), but increasingly
 command-line applications are built to take advantage of colours beyond
 the standard 8 provided by the ANSI escape codes. These extensions are
 not generally standardized, but xterm serves as a de-facto standard.
 Patch from Crystal Kolipe, adjusted slightly to work on 16-bit and
 24-bit displays by me.

 PR kern/59544


 To generate a diff of this commit:
 cvs rdiff -u -r1.128 -r1.128.12.1 src/sys/dev/rasops/rasops.c
 cvs rdiff -u -r1.51 -r1.51.2.1 src/sys/dev/rasops/rasops.h
 cvs rdiff -u -r1.8 -r1.8.36.1 src/sys/dev/rasops/rasops_putchar.h
 cvs rdiff -u -r1.57 -r1.57.8.1 src/sys/dev/wscons/wsdisplayvar.h
 cvs rdiff -u -r1.34 -r1.34.8.1 src/sys/dev/wscons/wsemul_vt100_subr.c

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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