mirror of
https://git.FreeBSD.org/src.git
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Move scrshot(1) functionality into vidcontrol(1).
Suggested by: many Not objected to by: nik (scrshot co-author)
This commit is contained in:
Maxim Sobolev
parent
aa3a855755
commit
d02ca551d3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=76845
@ -224,7 +224,6 @@ SUBDIR+=ar \
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nm \
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nm \
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ranlib \
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ranlib \
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sasc \
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sasc \
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scrshot \
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size \
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size \
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strings \
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strings \
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strip
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strip
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@ -1,5 +0,0 @@
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# $FreeBSD$
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PROG= scrshot
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.include <bsd.prog.mk>
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@ -1,162 +0,0 @@
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.\" Copyright (c) 2001 Nik Clayton
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.\" All rights reserved
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
|
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
|
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.\" notice, this list of conditions and the following disclaimer in the
|
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 17, 2001
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.Dt SCRSHOT 1
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.Os
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.Sh NAME
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.Nm scrshot
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.Nd capture the contents of a syscons terminal
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.Sh SYNOPSIS
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.Nm
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.Ar device
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.Sh DESCRIPTION
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The
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.Nm
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utility uses the
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.Xr syscons 4
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.Dv CONS_SCRSHOT
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.Xr ioctl 2
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to capture the current contents of the video buffer corresponding to the
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terminal device given as the first argument.
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.Nm
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writes version and additional information to the standard output, followed by
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the contents of the terminal device.
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.Sh IMPLEMENTATION NOTES
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PC video memory is typically arranged in two byte tuples, one per character
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position.
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In each tuple, the first byte will be the character code, and the
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second byte is the character's color attribute.
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.Pp
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The color attribute byte is further broken down in to the low nibble, which
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specifies which of 16 different foreground colors is active, and the high
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nibble, which specifies which of 16 different background colors is active.
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.Pp
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.Bl -hang -offset indent -compact
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.It 0
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Black
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.It 1
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Blue
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.It 2
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Green
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.It 3
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Cyan
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.It 4
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Red
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.It 5
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Magenta
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.It 6
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Brown
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.It 7
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White
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.It 8
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Grey
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.It 9
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Light Blue
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.It 10
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Light Green
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.It 11
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Light Cyan
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.It 12
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Light Red
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.It 13
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Light Magenta
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.It 14
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Yellow
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.It 15
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White
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.El
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.Pp
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It can be seen that the last 8 colors are brighter versions of the first 8.
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.Pp
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For example, the two bytes
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.Pp
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.Dl "65 158"
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.Pp
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specify an uppercase A (character code 65), in yellow (low nibble 15) on a
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light blue background (high nibble 9).
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.Pp
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The
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.Nm
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output contains a small header which includes additional information which may
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be useful to utilities processing the output.
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.Pp
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The first 10 bytes are always arranged as follows:
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.Bl -column "Byte range" "Contents" -offset indent
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.It Sy "Byte Range Contents"
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.It "1 thru 8 Literal text" Dq Li SCRSHOT_
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.It "9 File format version number"
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.It "10 Remaining number of bytes in the header"
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.El
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.Pp
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Subsequent bytes depend on the version number.
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.Bl -column "Version" "13 and up" -offset indent
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.It Sy "Version Byte Meaning"
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.It "1 11 Terminal width, in characters"
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.It " 12 Terminal depth, in characters"
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.It " 13 and up The snapshot data"
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.El
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.Pp
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So a dump of an 80x25 screen would start (in hex)
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.Bd -literal -offset indent
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53 43 52 53 48 4f 54 5f 01 02 50 19
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----------------------- -- -- -- --
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| | | | ` 25 decimal
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| | | `--- 80 decimal
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| | `------ 2 remaining bytes of header data
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| `--------- File format version 1
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`------------------------ Literal "SCRSHOT_"
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.Ed
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.Sh EXAMPLES
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The command:
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.Pp
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.Dl "scrshot /dev/ttyv0 > shot.scr"
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.Pp
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will capture the contents of the first virtual terminal, and redirect the
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output to the
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.Pa shot.scr
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file.
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.Sh DIAGNOSTICS
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The
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.Nm
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utility exits 0 on success or >0 if an error occurred.
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.Sh SEE ALSO
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.Xr syscons 4 ,
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.Xr ascii 7 ,
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.Xr watch 8
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.Pp
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The various
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.Li shot2*
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utilities in the
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.Li textproc
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category of the ports collection.
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.Sh HISTORY
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A
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.Nm
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utility first appeared in
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.Fx 4.4 .
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.Sh AUTHORS
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.An Joel Holveck Aq joelh@gnu.org
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.An Nik Clayton Aq nik@FreeBSD.org
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@ -1,81 +0,0 @@
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/*-
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* Copyright (c) 2001 Joel Holveck and Nik Clayton
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer,
|
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* without modification, immediately at the beginning of the file.
|
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/consio.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define VERSION 1 /* File format version */
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/*
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* Given the path to a syscons terminal (e.g., "/dev/ttyv0"), tries to
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* snapshot the video memory of that terminal, using the CONS_SCRSHOT
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* ioctl, and writes the results to stdout.
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*/
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int
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main(int argc, char *argv[])
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{
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int fd;
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scrshot_t shot;
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vid_info_t info;
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if (argc != 2)
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errx(1, "improper # of args");
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fd = open(argv[1], O_RDWR);
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if (fd < 0)
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err(1, "%s", argv[1]);
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info.size = sizeof(info);
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if (ioctl(fd, CONS_GETINFO, &info) == -1)
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err(1, "ioctl(CONS_GETINFO)");
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shot.buf = malloc(info.mv_csz * info.mv_rsz * sizeof(u_int16_t));
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if (shot.buf == NULL)
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err(1, "couldn't allocate shot space");
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shot.xsize = info.mv_csz;
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shot.ysize = info.mv_rsz;
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if (ioctl(fd, CONS_SCRSHOT, &shot) == -1)
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err(1, "ioctl(CONS_SCRSHOT)");
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printf("SCRSHOT_%c%c%c%c", VERSION, 2, shot.xsize, shot.ysize);
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fflush(stdout);
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(void)write(STDOUT_FILENO, shot.buf,
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shot.xsize * shot.ysize * sizeof(u_int16_t));
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exit(0);
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}
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@ -36,6 +36,8 @@
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.Op Fl M Ar char
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.Op Fl M Ar char
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.Op Fl m Cm on | off
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.Op Fl m Cm on | off
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.Op Fl r Ar foreground Ar background
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.Op Fl r Ar foreground Ar background
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.Op Fl p
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.Op Fl P
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.Op Fl s Ar number
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.Op Fl s Ar number
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.Op Fl t Ar N | Cm off
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.Op Fl t Ar N | Cm off
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.Op Fl x
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.Op Fl x
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@ -185,6 +187,21 @@ or
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Used together with the
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Used together with the
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.Xr moused 8
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.Xr moused 8
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daemon for text mode cut & paste functionality.
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daemon for text mode cut & paste functionality.
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.It Fl p
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Capture the current contents of the video buffer corresponding
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to the terminal device referred to by standard input.
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.Nm
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writes contents of the video buffer to the standard
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output in a raw binary format. For details about that
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format see
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.Sx Format of Video Buffer Dump
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below.
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.It Fl P
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Same as
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.Fl p ,
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but dump contents of the video buffer in a plain text format
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ignoring nonprintable characters and information about text
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attributes.
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.It Fl r Ar foreground background
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.It Fl r Ar foreground background
|
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Change reverse mode colors to
|
Change reverse mode colors to
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.Ar foreground
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.Ar foreground
|
||||||
@ -253,6 +270,106 @@ you need to recompile your kernel with the
|
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option. See
|
option. See
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.Xr syscons 4
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.Xr syscons 4
|
||||||
for more details on this kernel option.
|
for more details on this kernel option.
|
||||||
|
.Ss Format of Video Buffer Dump
|
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|
The
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.Nm
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||||||
|
utility uses the
|
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|
.Xr syscons 4
|
||||||
|
.Dv CONS_SCRSHOT
|
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|
.Xr ioctl 2
|
||||||
|
to capture the current contents of the video buffer.
|
||||||
|
.Nm
|
||||||
|
writes version and additional information to the standard
|
||||||
|
output, followed by the contents of the terminal device.
|
||||||
|
.Pp
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||||||
|
PC video memory is typically arranged in two byte tuples,
|
||||||
|
one per character position. In each tuple, the first byte
|
||||||
|
will be the character code, and the second byte is the
|
||||||
|
character's color attribute.
|
||||||
|
.Pp
|
||||||
|
The color attribute byte is further broken down in to the
|
||||||
|
low nibble, which specifies which of 16 different foreground
|
||||||
|
colors is active, and the high nibble, which specifies which
|
||||||
|
of 16 different background colors is active.
|
||||||
|
.Pp
|
||||||
|
.Bl -hang -offset indent -compact
|
||||||
|
.It 0
|
||||||
|
Black
|
||||||
|
.It 1
|
||||||
|
Blue
|
||||||
|
.It 2
|
||||||
|
Green
|
||||||
|
.It 3
|
||||||
|
Cyan
|
||||||
|
.It 4
|
||||||
|
Red
|
||||||
|
.It 5
|
||||||
|
Magenta
|
||||||
|
.It 6
|
||||||
|
Brown
|
||||||
|
.It 7
|
||||||
|
White
|
||||||
|
.It 8
|
||||||
|
Grey
|
||||||
|
.It 9
|
||||||
|
Light Blue
|
||||||
|
.It 10
|
||||||
|
Light Green
|
||||||
|
.It 11
|
||||||
|
Light Cyan
|
||||||
|
.It 12
|
||||||
|
Light Red
|
||||||
|
.It 13
|
||||||
|
Light Magenta
|
||||||
|
.It 14
|
||||||
|
Yellow
|
||||||
|
.It 15
|
||||||
|
White
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
It can be seen that the last 8 colors are brighter
|
||||||
|
versions of the first 8.
|
||||||
|
.Pp
|
||||||
|
For example, the two bytes
|
||||||
|
.Pp
|
||||||
|
.Dl "65 158"
|
||||||
|
.Pp
|
||||||
|
specify an uppercase A (character code 65), in
|
||||||
|
yellow (low nibble 15) on a light blue background
|
||||||
|
(high nibble 9).
|
||||||
|
.Pp
|
||||||
|
The
|
||||||
|
.Nm
|
||||||
|
output contains a small header which includes additional
|
||||||
|
information which may be useful to utilities processing
|
||||||
|
the output.
|
||||||
|
.Pp
|
||||||
|
The first 10 bytes are always arranged as follows:
|
||||||
|
.Bl -column "Byte range" "Contents" -offset indent
|
||||||
|
.It Sy "Byte Range Contents"
|
||||||
|
.It "1 thru 8 Literal text" Dq Li SCRSHOT_
|
||||||
|
.It "9 File format version number"
|
||||||
|
.It "10 Remaining number of bytes in the header"
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
Subsequent bytes depend on the version number.
|
||||||
|
.Bl -column "Version" "13 and up" -offset indent
|
||||||
|
.It Sy "Version Byte Meaning"
|
||||||
|
.It "1 11 Terminal width, in characters"
|
||||||
|
.It " 12 Terminal depth, in characters"
|
||||||
|
.It " 13 and up The snapshot data"
|
||||||
|
.El
|
||||||
|
.Pp
|
||||||
|
So a dump of an 80x25 screen would start (in hex)
|
||||||
|
.Bd -literal -offset indent
|
||||||
|
53 43 52 53 48 4f 54 5f 01 02 50 19
|
||||||
|
----------------------- -- -- -- --
|
||||||
|
| | | | ` 25 decimal
|
||||||
|
| | | `--- 80 decimal
|
||||||
|
| | `------ 2 remaining bytes of header data
|
||||||
|
| `--------- File format version 1
|
||||||
|
`------------------------ Literal "SCRSHOT_"
|
||||||
|
.Ed
|
||||||
.Sh VIDEO OUTPUT CONFIGURATION
|
.Sh VIDEO OUTPUT CONFIGURATION
|
||||||
.Ss Boot Time Configuration
|
.Ss Boot Time Configuration
|
||||||
You may set the following variables in
|
You may set the following variables in
|
||||||
@ -329,6 +446,18 @@ The following command will set-up a 100x37 raster text mode (useful for
|
|||||||
some LCD models):
|
some LCD models):
|
||||||
.Pp
|
.Pp
|
||||||
.Dl vidcontrol -g 100x37 VESA_800x600
|
.Dl vidcontrol -g 100x37 VESA_800x600
|
||||||
|
.Pp
|
||||||
|
The following command will capture the contents of the first virtual
|
||||||
|
terminal, and redirect the output to the
|
||||||
|
.Pa shot.scr
|
||||||
|
file:
|
||||||
|
.Pp
|
||||||
|
.Dl vidcontrol -p < /dev/ttyv0 > shot.scr
|
||||||
|
.Pp
|
||||||
|
The following command will dump contents of the forth virtual terminal
|
||||||
|
to the standard output in the human readable format:
|
||||||
|
.Pp
|
||||||
|
.Dl vidcontrol -P < /dev/ttyv3
|
||||||
.Sh SEE ALSO
|
.Sh SEE ALSO
|
||||||
.Xr kbdcontrol 1 ,
|
.Xr kbdcontrol 1 ,
|
||||||
.Xr vidfont 1 ,
|
.Xr vidfont 1 ,
|
||||||
@ -339,5 +468,13 @@ some LCD models):
|
|||||||
.Xr rc.conf 5 ,
|
.Xr rc.conf 5 ,
|
||||||
.Xr kldload 8 ,
|
.Xr kldload 8 ,
|
||||||
.Xr moused 8
|
.Xr moused 8
|
||||||
|
.Xr watch 8
|
||||||
|
.Pp
|
||||||
|
The various
|
||||||
|
.Li shot2*
|
||||||
|
utilities in the
|
||||||
|
.Li textproc
|
||||||
|
category of the
|
||||||
|
.Em "Ports Collection" .
|
||||||
.Sh AUTHORS
|
.Sh AUTHORS
|
||||||
.An S\(/oren Schmidt Aq sos@FreeBSD.org
|
.An S\(/oren Schmidt Aq sos@FreeBSD.org
|
||||||
|
|||||||
@ -50,6 +50,11 @@ static const char rcsid[] =
|
|||||||
#define _VESA_800x600_DFL_ROWS 25
|
#define _VESA_800x600_DFL_ROWS 25
|
||||||
#define _VESA_800x600_DFL_FNSZ 16
|
#define _VESA_800x600_DFL_FNSZ 16
|
||||||
|
|
||||||
|
#define DUMP_RAW 0
|
||||||
|
#define DUMP_TXT 1
|
||||||
|
|
||||||
|
#define DUMP_FMT_REV 1
|
||||||
|
|
||||||
char legal_colors[16][16] = {
|
char legal_colors[16][16] = {
|
||||||
"black", "blue", "green", "cyan",
|
"black", "blue", "green", "cyan",
|
||||||
"red", "magenta", "brown", "white",
|
"red", "magenta", "brown", "white",
|
||||||
@ -70,8 +75,8 @@ usage()
|
|||||||
fprintf(stderr, "%s\n%s\n%s\n%s\n",
|
fprintf(stderr, "%s\n%s\n%s\n%s\n",
|
||||||
"usage: vidcontrol [-r fg bg] [-b color] [-c appearance] [-d] [-l scrmap]",
|
"usage: vidcontrol [-r fg bg] [-b color] [-c appearance] [-d] [-l scrmap]",
|
||||||
" [-i adapter | mode] [-L] [-M char] [-m on|off]",
|
" [-i adapter | mode] [-L] [-M char] [-m on|off]",
|
||||||
" [-f size file] [-s number] [-t N|off] [-x] [-g geometry]",
|
" [-f size file] [-s number] [-t N|off] [-x] [-g geometry]",
|
||||||
" [mode] [fgcol [bgcol]] [show]");
|
" [-p] [-P] [mode] [fgcol [bgcol]] [show]");
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -638,6 +643,77 @@ test_frame()
|
|||||||
info.mv_rev.fore, info.mv_rev.back);
|
info.mv_rev.fore, info.mv_rev.back);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Snapshot the video memory of that terminal, using the CONS_SCRSHOT
|
||||||
|
* ioctl, and writes the results to stdout either in the special
|
||||||
|
* binary format (see manual page for details), or in the plain
|
||||||
|
* text format.
|
||||||
|
*/
|
||||||
|
void
|
||||||
|
dump_screen(int mode)
|
||||||
|
{
|
||||||
|
scrshot_t shot;
|
||||||
|
vid_info_t info;
|
||||||
|
|
||||||
|
info.size = sizeof(info);
|
||||||
|
if (ioctl(0, CONS_GETINFO, &info) == -1) {
|
||||||
|
warn("failed to obtain current video mode parameters");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
shot.buf = alloca(info.mv_csz * info.mv_rsz * sizeof(u_int16_t));
|
||||||
|
if (shot.buf == NULL) {
|
||||||
|
warn("failed to allocate memory for dump");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
shot.xsize = info.mv_csz;
|
||||||
|
shot.ysize = info.mv_rsz;
|
||||||
|
if (ioctl(0, CONS_SCRSHOT, &shot) == -1) {
|
||||||
|
warn("failed to get dump of the screen");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (mode == DUMP_RAW) {
|
||||||
|
printf("SCRSHOT_%c%c%c%c", DUMP_FMT_REV, 2,
|
||||||
|
shot.xsize, shot.ysize);
|
||||||
|
fflush(stdout);
|
||||||
|
|
||||||
|
(void)write(STDOUT_FILENO, shot.buf,
|
||||||
|
shot.xsize * shot.ysize * sizeof(u_int16_t));
|
||||||
|
} else {
|
||||||
|
char *line;
|
||||||
|
int x, y;
|
||||||
|
u_int16_t ch;
|
||||||
|
|
||||||
|
line = alloca(shot.xsize + 1);
|
||||||
|
if (line == NULL) {
|
||||||
|
warn("failed to allocate memory for line buffer");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (y = 0; y < shot.ysize; y++) {
|
||||||
|
for (x = 0; x < shot.xsize; x++) {
|
||||||
|
ch = shot.buf[x + (y * shot.xsize)];
|
||||||
|
ch &= 0xff;
|
||||||
|
if (isprint(ch) == 0)
|
||||||
|
ch = ' ';
|
||||||
|
line[x] = (char)ch;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Trim trailing spaces */
|
||||||
|
do {
|
||||||
|
line[x--] = '\0';
|
||||||
|
} while (line[x] == ' ' && x != 0);
|
||||||
|
|
||||||
|
puts(line);
|
||||||
|
}
|
||||||
|
fflush(stdout);
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
int
|
int
|
||||||
main(int argc, char **argv)
|
main(int argc, char **argv)
|
||||||
{
|
{
|
||||||
@ -648,7 +724,7 @@ main(int argc, char **argv)
|
|||||||
info.size = sizeof(info);
|
info.size = sizeof(info);
|
||||||
if (ioctl(0, CONS_GETINFO, &info) < 0)
|
if (ioctl(0, CONS_GETINFO, &info) < 0)
|
||||||
err(1, "must be on a virtual console");
|
err(1, "must be on a virtual console");
|
||||||
while((opt = getopt(argc, argv, "b:c:df:g:i:l:LM:m:r:s:t:x")) != -1)
|
while((opt = getopt(argc, argv, "b:c:df:g:i:l:LM:m:pPr:s:t:x")) != -1)
|
||||||
switch(opt) {
|
switch(opt) {
|
||||||
case 'b':
|
case 'b':
|
||||||
set_border_color(optarg);
|
set_border_color(optarg);
|
||||||
@ -690,6 +766,12 @@ main(int argc, char **argv)
|
|||||||
case 'm':
|
case 'm':
|
||||||
set_mouse(optarg);
|
set_mouse(optarg);
|
||||||
break;
|
break;
|
||||||
|
case 'p':
|
||||||
|
dump_screen(DUMP_RAW);
|
||||||
|
break;
|
||||||
|
case 'P':
|
||||||
|
dump_screen(DUMP_TXT);
|
||||||
|
break;
|
||||||
case 'r':
|
case 'r':
|
||||||
set_reverse_colors(argc, argv, &optind);
|
set_reverse_colors(argc, argv, &optind);
|
||||||
break;
|
break;
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user