Package: fbi
Version: 2.09-1+b1
Severity: normal
Tags: patch
Dear Maintainer,
PDF documents can be hard to read using fbgs because text is not being
antialiased. Some documents are so unpleasant to
read that the program is essentially unusable.
Fortunately, it is a simple matter to enable antialiasing in ghostscript, if
the output device is not monochrome.
I have created a patch which makes color and antialiasing work by default in
fbgs. Of course, I have added flags to
disable those defaults if someone should so wish. (-M for monochrome, -A for no
antialiasing).
Note that since antialiasing requires "color" output, this patch includes the
fixes I sent on BUG #780643.
A second patch is included for the man page.
Ben
-- System Information:
Debian Release: 8.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i586)
Kernel: Linux 3.16.0-4-586
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages fbi depends on:
ii ghostscript 9.06~dfsg-2
ii libc6 2.19-15
ii libcurl3-gnutls 7.38.0-4
ii libexif12 0.6.21-2
ii libfontconfig1 2.11.0-6.3
ii libfreetype6 2.5.2-3
ii libgif4 4.1.6-11
ii libjpeg62-turbo 1:1.3.1-11+deb7u1
ii libpng12-0 1.2.50-2+b2
ii libtiff5 4.0.3-12.1
ii zlib1g 1:1.2.8.dfsg-2+b1
fbi recommends no packages.
Versions of packages fbi suggests:
pn imagemagick <none>
-- no debconf information
*** antialiaspatch
--- fbgs.orig 2012-02-22 09:13:36.000000000 -0800
+++ fbgs 2015-03-14 12:31:17.468334244 -0700
@@ -14,8 +14,9 @@
# parse options
fbiopts=""
gsopts=""
+antialias="-dTextAlphaBits=4 -dGraphicsAlphaBits=4"
passwd=""
-device="tiffpack"
+device="png16m"
opt=1
bell="off"
helptext="
@@ -24,12 +25,13 @@
usage: fbgs [fbgs options] [fbi options] file
+ -A --no-antialias do not antialias (faster rendering)
-b --bell emit a beep when the document is ready
-h --help print this help text
-p --password <arg> a <password> passed to the PDF
-fp --firstpage <arg> begins on the <arg> page
-lp --lastpage <arg> stops on the <arg> page
- -c --color pages in color
+ -M --monochrome render in monochrome (B&W)
-l pages rendered with 100 dpi
-xl pages rendered with 120 dpi
-xxl pages rendered with 150 dpi
@@ -41,6 +43,15 @@
while test "$opt" = "1"; do
case "$1" in
# fbgs options
+ -A | --no-antialias)
+ antialias=""
+ shift
+ ;;
+ --antialias)
+ # Needless since this is the default, but just in case.
+ antialias="-dTextAlphaBits=4 -dGraphicsAlphaBits=4"
+ shift
+ ;;
-b | --bell)
bell="on"
shift
@@ -61,7 +72,12 @@
gsopts="$gsopts -dLastPage=$2"
shift; shift
;;
+ -M | --monochrome)
+ device="tiffpack"
+ shift
+ ;;
-c | --color)
+ echo "The $1 flag is deprecated. Color is now the
default." >&2
device="png16m"
shift
;;
@@ -116,7 +132,7 @@
gs -dSAFER -dNOPAUSE -dBATCH \
-sPDFPassword="$password" \
-sDEVICE=${device} -sOutputFile=$DIR/ps%03d.tiff \
- $gsopts \
+ $antialias $gsopts \
"$1"
# tell the user we are done :-)
*** antialiaspatchmanpage
--- fbgs.1.orig 2014-10-14 11:51:07.000000000 -0700
+++ fbgs.1 2015-03-14 12:20:35.212408494 -0700
@@ -8,7 +8,8 @@
.SH SYNOPSIS
\fBfbgs\fP\
[\fB\-l\fP|\fB\-xl\fP|\fB\-xxl\fP|\fB\-r\fP \fIn\fP]\
- [\fB\-c\fP]\
+ [\fB\-A\fP]\
+ [\fB\-M\fP]\
[\fB\-b\fP]\
[\fB\-p\fP\ \fIpassword\fP]\
[\fB\--fp\fP\ \fInumber\fP]\
@@ -37,11 +38,14 @@
.B -h, --help
Print usage info (overwrites fbi option).
.TP
+.B -A, --no-antialias
+Disable antialiasing (smoothing). Faster, but can make text very hard to read.
+.TP
.B -b, --bell
Emit a beep when the document is ready.
.TP
-.B -c, --color
-To render the pages in color (default is N&B).
+.B -M, --monochrome
+To render the pages in monochrome (black and white). Faster, but also disables
antialiasing.
.TP
.B -l
To get the pages rendered with 100 dpi (default is 75).
--- fbgs.orig 2012-02-22 09:13:36.000000000 -0800
+++ fbgs 2015-03-14 12:31:17.468334244 -0700
@@ -14,8 +14,9 @@
# parse options
fbiopts=""
gsopts=""
+antialias="-dTextAlphaBits=4 -dGraphicsAlphaBits=4"
passwd=""
-device="tiffpack"
+device="png16m"
opt=1
bell="off"
helptext="
@@ -24,12 +25,13 @@
usage: fbgs [fbgs options] [fbi options] file
+ -A --no-antialias do not antialias (faster rendering)
-b --bell emit a beep when the document is ready
-h --help print this help text
-p --password <arg> a <password> passed to the PDF
-fp --firstpage <arg> begins on the <arg> page
-lp --lastpage <arg> stops on the <arg> page
- -c --color pages in color
+ -M --monochrome render in monochrome (B&W)
-l pages rendered with 100 dpi
-xl pages rendered with 120 dpi
-xxl pages rendered with 150 dpi
@@ -41,6 +43,15 @@
while test "$opt" = "1"; do
case "$1" in
# fbgs options
+ -A | --no-antialias)
+ antialias=""
+ shift
+ ;;
+ --antialias)
+ # Needless since this is the default, but just in case.
+ antialias="-dTextAlphaBits=4 -dGraphicsAlphaBits=4"
+ shift
+ ;;
-b | --bell)
bell="on"
shift
@@ -61,7 +72,12 @@
gsopts="$gsopts -dLastPage=$2"
shift; shift
;;
+ -M | --monochrome)
+ device="tiffpack"
+ shift
+ ;;
-c | --color)
+ echo "The $1 flag is deprecated. Color is now the default." >&2
device="png16m"
shift
;;
@@ -116,7 +132,7 @@
gs -dSAFER -dNOPAUSE -dBATCH \
-sPDFPassword="$password" \
-sDEVICE=${device} -sOutputFile=$DIR/ps%03d.tiff \
- $gsopts \
+ $antialias $gsopts \
"$1"
# tell the user we are done :-)
--- fbgs.1.orig 2014-10-14 11:51:07.000000000 -0700
+++ fbgs.1 2015-03-14 12:20:35.212408494 -0700
@@ -8,7 +8,8 @@
.SH SYNOPSIS
\fBfbgs\fP\
[\fB\-l\fP|\fB\-xl\fP|\fB\-xxl\fP|\fB\-r\fP \fIn\fP]\
- [\fB\-c\fP]\
+ [\fB\-A\fP]\
+ [\fB\-M\fP]\
[\fB\-b\fP]\
[\fB\-p\fP\ \fIpassword\fP]\
[\fB\--fp\fP\ \fInumber\fP]\
@@ -37,11 +38,14 @@
.B -h, --help
Print usage info (overwrites fbi option).
.TP
+.B -A, --no-antialias
+Disable antialiasing (smoothing). Faster, but can make text very hard to read.
+.TP
.B -b, --bell
Emit a beep when the document is ready.
.TP
-.B -c, --color
-To render the pages in color (default is N&B).
+.B -M, --monochrome
+To render the pages in monochrome (black and white). Faster, but also disables antialiasing.
.TP
.B -l
To get the pages rendered with 100 dpi (default is 75).
