[Pkg-cups-devel] Bug#563467: cups: imagetoraster generates blank raster data at 16 bit color depth

[Wulf Hofbauer]

Package: cups
Version: 1.3.8-1+lenny7
Severity: important


imagetoraster, when directed to generate 16 bit output, generates blank (i.e. all white) raster data.

Specifically:
	- input image is a JFIF file
	- output raster format set to RGB, 16 bits per pixel, chunky format (via PPD file:
		ColorModel rgb/RGB: "<</cupsColorOrder 0/cupsColorSpace 1/cupsCompression 0
		/cupsBitsPerColor 16>>setpagedevice")
	- a valid raster file is generated, however all RGB values are 0xffff (i.e. white).
	- if bit depth is changed to 8 bits in the otherwise unchanged PPD file, everything
		works fine (i.e. the generated raster data contains the image data).

Impact:
	While not much of a problem for generic office-type printing, it renders CUPS
	virtually useless for high quality photo printing if one can only pass 8 bit data
	to the printer driver.

-- System Information:
Debian Release: 5.0.3
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_SG, LC_CTYPE=en_SG (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

Versions of packages cups depends on:
ii  adduser         3.110                    add and remove users and groups
ii  cups-common     1.3.8-1+lenny7           Common UNIX Printing System(tm) - 
ii  debconf [debcon 1.5.24                   Debian configuration management sy
ii  ghostscript     8.62.dfsg.1-3.2lenny1    The GPL Ghostscript PostScript/PDF
ii  libavahi-compat 0.6.23-3lenny1           Avahi Apple Bonjour compatibility 
ii  libc6           2.7-18                   GNU C Library: Shared libraries
ii  libcups2        1.3.8-1+lenny7           Common UNIX Printing System(tm) - 
ii  libcupsimage2   1.3.8-1+lenny7           Common UNIX Printing System(tm) - 
ii  libdbus-1-3     1.2.1-5+lenny1           simple interprocess messaging syst
ii  libgnutls26     2.4.2-6+lenny2           the GNU TLS library - runtime libr
ii  libkrb53        1.6.dfsg.4~beta1-5lenny1 MIT Kerberos runtime libraries
ii  libldap-2.4-2   2.4.11-1+lenny1          OpenLDAP libraries
ii  libpam0g        1.0.1-5+lenny1           Pluggable Authentication Modules l
ii  libpaper1       1.1.23+nmu1              library for handling paper charact
ii  libslp1         1.2.1-7.5                OpenSLP libraries
ii  lsb-base        3.2-20                   Linux Standard Base 3.2 init scrip
ii  perl-modules    5.10.0-19lenny2          Core Perl modules
ii  procps          1:3.2.7-11               /proc file system utilities
ii  ssl-cert        1.0.23                   simple debconf wrapper for OpenSSL
ii  xpdf-utils [pop 3.02-1.4+lenny1          Portable Document Format (PDF) sui

Versions of packages cups recommends:
ii  avahi-utils           0.6.23-3lenny1     Avahi browsing, publishing and dis
ii  cups-client           1.3.8-1+lenny7     Common UNIX Printing System(tm) - 
ii  foomatic-filters      3.0.2-20080211-3.2 OpenPrinting printer support - fil
ii  smbclient             2:3.2.5-4lenny7    a LanManager-like simple client fo

Versions of packages cups suggests:
ii  cups-bsd                1.3.8-1+lenny7   Common UNIX Printing System(tm) - 
ii  cups-driver-gutenprint  5.0.2-4          printer drivers for CUPS
ii  cups-pdf                2.4.8-3          PDF printer for CUPS
ii  foomatic-db             20080211-2+nmu1  OpenPrinting printer support - dat
ii  foomatic-db-engine      3.0.2-20080211-1 OpenPrinting printer support - pro
ii  hplip                   2.8.6.b-4        HP Linux Printing and Imaging Syst
pn  xpdf-korean | xpdf-japa <none>           (no description available)

-- debconf information excluded