kopia lustrzana https://gitlab.com/sane-project/backends
486 wiersze
22 KiB
Plaintext
486 wiersze
22 KiB
Plaintext
TODO (2002-01-19)
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******** todo ********
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backends
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--------
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* Add new backends (?)
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- hp4200 http://hp4200-backend.sourceforge.net/
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- v4l2 http://video.inodes.org/sane-v4l2/
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- Relisys Scorpio Super 3 SCSI II
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Mark Plowman <sane-devel@plowman.xs4all.nl>
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http://www.xs4all.nl/~plowman/
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- Linux Handscanner Ioctl Interface scanner by Harald
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Bauer <bauer-h@web.de>
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- viceo (Visioneer OneTouch 8600)
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http://www.littlecms.com/iphoto/otlinux.htm
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- Genius Vivid Pro USB, Colorado USB 19200, Visioneer OneTouch 7600
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IBM IdeaScan 2000 USB
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http://homepages.paradise.net.nz/stevenel/scanner/
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- Fujitsu M3091DCd support
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Frederik Ramm <frederik@remote.org>
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http://www.remote.org/frederik/projects/software/sane/
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- Canon FB620S flatbed scanner and FS2710 film scanner
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ftp://stthd0.pc.uni-koeln.de/pub/canon-1.08.tar.gz
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Ulrich Deiters <ukd@xenon.pc.Uni-Koeln.DE>
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- Hewlett-Packard ScanJet 3300C / 3400C and 4300C (wip)
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http://sourceforge.net/projects/hp3300backend
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* Update backends
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- Combine all the Fujitsu backends into one single backend
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* All backends should check for TL_X < BR_X and TL_Y < BR_Y to
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avoid segfaults or even scanner damage.
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* Don't use exit() in backends.
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- (v4l)
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- tamarack
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* Use DBG(...) instead of fprintf(stderr, ...) or printf
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- microtek
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* qcam:
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- implement auto mode for brightness and black-level (don't
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just advertise it!) Actually, implement an auto "backend" instead
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that can be plugged in front of any backend with brightness/contrast
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etc controls
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- figure out how/if to support bulb mode
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- convert to use sanei_pio functions instead of direct port
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access.
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- The result of locking isn't checked --> does it make sense at all?
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* dll: Rewrite to use libtool ltdl library
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* dc210 and jpeg stuff: move sanei_* functions to sanei/ (if they are
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necessary).
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* v4l: Problems (crash) with more than one video card. It looks like
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the two different cards are identified as the same card.
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* Fix backends where sane_exit() does not release memory allocated by
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sane_get_devices().
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- abaton
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- agfafocus
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- apple
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- as6e
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- avision
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- bh
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- canon
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- coolscan
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- dmc
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- m3096
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- microtek
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- qcam
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- ricoh
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- s9036
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- sharp
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- sp15c
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- tamarack
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- etc?
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* as6e: attach: memory (dev + dev-sane.name) isn't freed if driver isn't
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found.
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* avision: line 1393: word isn't freed sometimes (maybe if cp == line?)
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* net: add IPv6 support.
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doc
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---
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* Add doxygen documentation for the remaining sanei files:
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- sanei_auth.c
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- sanei_codec*
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- sanei_config.c
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- sanei_config2.c
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- sanei_constrain_value.c
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- sanei_init_debug.c
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- sanei_net.c
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- sanei_pa4s2.c
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- sanei_pio.c
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- sanei_pv8630.c
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- sanei_scsi.c
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- sanei_thread.c
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- sanei_wire.c
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* sane.tex: Define the return values for sane_init? Define the
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consequences if sane_init doesn't return SANE_STATUS_GOOD.
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* sane.tex: Add a warning/explanation about problems with
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sane_get_select_fd, Unix select() calls and sane_cancel.
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frontends
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---------
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* saned:
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- saned times out after 60 minutes. Check if the
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watchdog timer is really necessary (e.g. to avoid blocking scanners
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by one user). Maybe add a command line option to saned to set the
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timeout. Otherwise turn on TCP keep alive (where available) and
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(maybe) check the connection from server side.
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- Add IPv6 support.
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* scanimage: Add i18n (NLS) support?
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[the remaining entries have been moved to the sane-frontends package]
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sanei
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-----
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* sanei_scsi: Check return values of req_wait and cmd in case of
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SCSI DEVICE BUSY. Better specification of the behaviour of sanei_scsi
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functions (e.g. return values, timeout 10 min versus 1 min)?
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* create sanei_parport_* and remove all inb, outb,... from all backends;
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use libieee1284 if available (see
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http://people.redhat.com/twaugh/libieee1284/). Or just include this
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library into sane.
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platform-specific
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-----------------
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* Keep config.guess and config.sub up-to-date.
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* SCSI access doesn't seem to work on Linux/Sparc. See emails from
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Tomislav Renic on sane-devel (2001-09-21).
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* Really fix all the parport/inb/outb compilation issues which break
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porting to some non-i386 platforms.
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* Add AC_OBJEXT and AC_EXEEXT to configure.in for automatically adding
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the correct extensions (e.g. for OS/2). Also update the Makefiles
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accordingly.
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* Add support for semaphores also for OS/2 (currently used in snapscan).
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* Fix shared lib problem with NetBSD. Starting scanimage results in:
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"Cannot open "../backend/.libs/libsane.so".
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* Shared libs work with OpenBSD. However, they are named libsane.so.1.6
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instead of 1.0.6. Is this correct?
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misc
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----
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* sane-config: add options "--exec-prefix=...." and "--prefix=..."
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compareable to gtk-config
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* Check include/sane/config.h.in for unnecessary macros.
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* Add configure option to enable only the net backend for users without
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local scanners. Install only sane-dll/sane-net (or even only sane-net).
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Maybe something like --network-client-only or --disable-local-devices.
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******** done ********
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* Documentation for sanei API
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* Fix missing or wrong links to backend homepages (*.desc). If a homepage
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doesn't exist, add a contact address (where available).
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* Check all backends which use fork/kill for the kill (-1,...) bug
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first found in the microtek2 backend.
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* Add support for qt NLS (msg2qm) if possible without too much hassle.
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* Add new backend primax http://primax.sourceforge.net/ (won't be ever a
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real sane backend)
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* qcam: Check file handling in /tmp.
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* Add a check in the frontends if the backend delivers more data than
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it announced by sane_get_parameters to avoid segfaults with bad
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backends?
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* Add installation procedure for translations of SANE backend's options.
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* check memory leaks (checked with purify and mtrace (from glibc)):
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* Test SANE on different os/platforms, fix possible compilation problems
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Test methods: scanimage -d pnm:0 --filename=file.pnm -T
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scanimage -d net:localhost:pnm:0 --filename=file.pnm -T
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(start saned by inetd or saned -d before testing)
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xscanimage / gimp with xscanimage plugin (where available)
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All the above with shared and static libraries.->backend-writing.txt
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* Remove compiler warnings (>300 warnings even in disable-warnings mode,
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>700 with --enable-warnings)) ->backend-writing.txt
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* Use #include "../include/sane/..." instead of #include <sane...>
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->backend-writing.txt
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* Use #include "../include/lalloca.h" instead of #include <lalloca.h>
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->backend-writing.txt
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* Update backend manpages (->backend-writing.txt).
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* Add description of --enable-parport-directio.
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* saned: Add documentation about the data connection.
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* UMAX Astra 1220U backend
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http://umax1220u-sane.sourceforge.net/
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* There seems to be yet another race condition or other source for
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freezes in saned or net. Wheile scanning with pnm and auth, scanimage
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freezes. Last message from saned: "process_request: got request 2".
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* Split configure option --enable-directio into --enable-scsi-directio and
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--enable-parport-directio to avoid confusion. Also add appropriate
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documentation.
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* sanei_usb: Add sanei_usb_control_msg.
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* Add support for PV8630 USB chipset (as sanei interface):
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* Fix libsocket problem (OS/2). libsocket must be linked when testing for
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libsyslog.
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* Add bearpaw backend (Mustek BearPaw 1200 + maybe 2400)
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(will be supported by plustek backend)
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* Must -ldl be added to sane-config.in?
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* Use @LIBDIR@, @CONFIGDIR@ and the other @@ macros to refer to paths.
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These are updated when installing to a non-standard prefix.
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* net: cancel doesn't work over the net at least with pnm and mustek.
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* add Jochen Eisinger's net.c and sanei_wire.c fixes/additions.
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* net.c: don't just ignore the byte-order for the image data (needed to
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support depths > 8 bits/channel)
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* saned seems to have problems checking the peer name of incoming
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connections. This happens at least with glibc 2.2.4 if the
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name in saned.conf is not fully qualified. See sane-devel
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"saned.conf hostname format".
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* If you mention sane-devel, also mention the website concerning
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subscription (http://www.mostang.com/sane/mail.html), because you can't
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write to sane-devel without subscribing.
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Or use your own mail address in the manual page.
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* Check for logical errors and spelling
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* Check .desc files:
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* Check for formatting bugs in manual pages:
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* Use #include "../include/assert.h" instead of #include <assert.h> to
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avoid problem with shared libraries on AIX.
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* scanimage: Maybe add ADF extensions from Caskey Dickson (or add them to
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scanadf if necessary).
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* Add Mustek USB backend (1200UB, 1200CU, 1200CU Plus)
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http://www.meier-geinitz.de/sane/
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Henning Meier-Geinitz <henning@meier-geinitz.de>
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* Add USB support for sane-find-scanner.
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* move .desc files for backends that are not included in SANE to
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different directory (e.g. backends and external-backends)?
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* create sanei_usb.* (maybe containing access for libusb and direct access
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for usb device files)? (sane-1.0.6)
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* Add sane-usb manpage
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* Check net/saned
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- sometimes saned+net freezes right after a scan (is this still
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occuring 2001-06-04?)
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* add warning when prefix dir is not listed in /etc/ld.so.conf on
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linux systems may be there is a general way to test this if the
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destination library directory is in the search path of the
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linker. [The correct fix is to use -R (on Solaris) and -rpath
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(on the rest?) to include the dynamic link path in the binaries
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/ libraries. pere 2001-02-09 -- I believe this is partly fixed
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in tools/sane-config.in 2001-05-18]
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* Add links to sane(7) in all maual pages
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* Check AIX/gcc shared lib loading problem: When starting scanimage,
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only dll is loaded.
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Backend libraries can't be loaded:
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[dll] load: dlopen() failed (Symbol resolution failed for
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/tmp/sane-bin/lib/sane/libsane-umax.so.1 because:
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Symbol __eprintf (number 55) is not exported from dependent
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module scanimage.
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This happens in most libraries. The reason is assert() e.g. in
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sanei_scsci.c. As assert() is in libgcc.a it can't be linked at runtime.
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* Don't export any other symbols than sane_* and sanei_*
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* nec:
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- Remove references to sharp backend (grep for "JX").
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- Check for HAVE_SYS_SHM_H before including sys/shm.h and
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disable shared memory support if necessary.
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* lines like "if (config_line[len - 1] == '\n')" can cause segfaults and
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should be removed (removing "\n" is already done in sanei_config_read).
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This ist just a fast grep. Check all backends!
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* add additions/bug fixes to microtek2 from Karsten Festag
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<karsten.festag@t-online.de> (partially done)
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* include snapscan updates http://sourceforge.net/projects/snapscan
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* as6e: change :new status to :alpha, :beta, or :stable.
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* Check Tru64 Unix compilation problems with u_int* types. They are already
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defined in sys/bitypes.h but this file isn't checked with AC_CHECK_TYPE.
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(-> include sys/bitypes.h in these cases).
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* Fix HP-UX problems in isfdtype.c (and maybe others). sys/stat.h doesn't
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seem to define stuct stat (not a bug, make was used instead of gmake).
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* Polaroid SprintScan 35 LE [should be included into microtek]
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* Maybe add script to deinstall existing sane versions
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- make uninstall
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- install sane-uninstall script. Advantage: uninstall possible
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without sourcecode (I think that's not necessary because you usually
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have the sourcecode of a newer version if you want to uninstall. hmg)
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* Add sane manpage (this is work in progress: Henning Meier-Geinitz
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<henning@meier-geinitz.de>)
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- versioning system?
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- SANE API (maybe summary only?)
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- point to backends and other information?
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* Add backend UMAX 1220P/2000P & HP 320C http://umax1220p.sourceforge.net
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* install all documentation that's available
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* Add a check for installed sane versions.
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- Print a warning when already a sane version is installed
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- If SANE is installed at a different location, ask user to
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remove old installation first
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* epson: backend tries to detect usb scanners by default. This breaks with
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non-epson scanners like the LM9831 bases Mustek Bearpaw 1200. The epson
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backend freezes if such a scanner is plugged in. Try to make the test safe
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or don't test without user interaction.
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* pnm: add more options for testing (e.g. arrays and read-only options)
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* sanei_scsi.c: OS/2: struct param breaks compilation with --enable-warnings.
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(probably fixed by testing for os2.h in configure).
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* Check all manpages for references to find-scanner (->sane-find-scanner).
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* net.c doesn't compile on Irix because socklen_t isn't known
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* Add new backends: bh http://www.martoneconsulting.com/sane-bh.html
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* Add manpage for find-scanner.
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* Should find-scanner be installed?
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* net backend segfaults sometimes when connected to localhost. Enabling
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debug output sometimes prevents segfaults. Cause of the problem:
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Copying SANE_TYPE_STRINGs up to their maximum size in
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SANE_Option_Descriptor (strings may be shorter then size).
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* Compilation of most backends break with OS/2 and gcc because the
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option -ansi doesn't seem to like sigset_t ?
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* Check for shm.h in configure
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* Add a global PATH_MAX macro somewhere (config.h ?) if it's not defined
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by the system.
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* sanei_scsi.c: Add patch from FreeBSD ports (sanei_scsi_find_devices)
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(after 1.0.4).
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* update libtool versioning system
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- in /usr/local/lib/libsane.la "installed=no" is set, isn't
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"installed=yes" the correct entry?
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* plustek-share.h: remove //
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* as6e: Check result of stat for errors to avoid false recognitions of the
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as6edriver.
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* artec: O_SYNC is not Posix. Breaks compilation on FreeBSD and (maybe) OS/2.
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* use strchr() instead of index() in mustek_pp to avoid problems when
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icluding strings.h or string.h.
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* Add test for PTAL to acinclude.m4/configure.in
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* build on Irix fails because of problems with the jpeg library. If this
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is removed in configure, build works. It complains about functions like
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(typename) functionname (). It doesn't like the brackets which result
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from expanding the macros EXTERN(x), METHODDEF(x), and GLOBAL(x) to
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(x). Defining something like EXTERN(x) x seems to work. Same for dc210.c
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Something like --disable-jpeg for configure would be nice.
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* addition to hp backend (support for SCL-based HP OfficeJets)
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http://hpoj.sourceforge.net
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* Libtool:
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- -version-info is used but with the current version number system
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-release should be used. (We should not change the version syntax
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within an existing sane-standard, so we leave this)
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- look for AIX problems (overwriting shared libs with eachother
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because all libs are named libsane.so.1) (solved)
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- look for Irix/cc problems (program searches for libsane.so.2 instead
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of libsane.so.1). (Patch works for existing sane standard)
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* getopt.c and umax.c seem to use gettext? Can cause crash if frontends
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are linked to libintl, too.
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* libdl is used in dll backend but -ldl is not added to LDFLAGS?
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* use strchr() instead of index() in sanei_auth, scanimage, saned
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to avoid problems when icluding strings.h or string.h.
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* Remove frontends (at least xscanimage/xcam) from distribution.
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* build on AIX does only work for static libraries. The shared libraries
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seem to overwrite each other.
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* add sanei_authorize (function for all backends)
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* make authorization_callback work in net-backend and saned. Try to
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avoid plain text passwords?
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* Add as6e http://as6edriver.sourceforge.net/
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* stiff.c: Tiff header not written correctly: "Jaeger, Gerhard"
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<gjaeger@sysgo.de> writes: When writing the TIFF header, you have to
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specify the TAG "BitsPerSample", which tells a reader how many bits each
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sample has. The current version only specifies one value (8 or 16). This
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is wrong, as we have to specify one value for each channel (i.e for a
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24bit RGB pic we must specify 8,8,8, see TIFF6.0 spec, [...]
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* don't install sanei_* headers
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* Add sane-pie (Pacific Image Electronics series of ScanAce SCSI scanners, and
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the Devcom 9636/9630 BlackWidow) http://www.munton.demon.co.uk/sane
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* configure --without-x doesn't work (doesn't matter when frontends
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are removed from package)
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* Create new package for frontends.
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* 0 is white for sane in lineart and halftone, however, 0 is black for
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the other modes. Possible reason: pnm data format. The SANE standard
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doesn't talk about this (added point to SANE standard)
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* add ADF and TA entries to .desc files (not done, probably webpage gets
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too wide)
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* check DBG problems for non gcc compilers:
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- no backend name output
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- only global debug level
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* dll: make it robust against it being listed in the configuration
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file (currently bad things will happen if dll attempts to load itself)
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* scanimage: add information about backend:devicename in the man
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page and scanimage --help.
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* scanimage: check if devicename starts with a / and print a warning
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message
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* scanimage: if no devices are detected print a message
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* use sanei_config_read() instead of fgets()
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* use #include "sane/..." instead of #include <sane/...>
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* Update LEVEL2 file. Ideas:
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* xscanimage: Fix "Gtk-CRITICAL **: file gtkmain.c: line 534 ..." bug
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when no SANE devices found
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+ PREVIEW: maybe there should be an option to limit the preview
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scan to the selected area? YES => this will also make it easier
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to avoid the scan area selection to get confused when the user
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resizes the preview area in a way that changes the aspect ratio;
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in essence we want to allow for the preview-image to be a subregion
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of the preview-window (done in xsane)
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+ xcam: allow disabling of advanced options and tooltips
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+ man page for xcam
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+ scanimage: support depths > 8 bits/channel
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+ upgrade to GTK 1.2 (but stay backwards compatible to 1.0 if possible)
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+ saned: check_host() consider using strncasecmp()
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+ GTK: changing the length unit causes dirty pixels in the unit-labels
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of the "Geometry Group"
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+ preview: image data doesn't get preserved properly when changing
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scan area size (reproducable by changing Mustek Scan source to TA)
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+ preview: when popping up the preview window, the current scan area is
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not visible
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+ qcam: test b&w support (need volunteer!)
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+ hp: convert to use pixel-unit commands only; HP 5P doesn't support
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decipoint commands
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+ mustek: the MFS-06000SP with firmware v3.12 does not seem to need any
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line-distance correction at all!?!
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+ scanimage/xscanimage: when a scanner is busy while probing for devices,
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the device is dropped silently from the list of available devices; this
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is confusing particularly when remote controlling a device; it should
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be possible to distinguish between a device that's busy and one that's
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absent
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+ xscanimage: program crashes when preview window is popped down while
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preview is being acquired!
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+ Mustek backend crashes when invoked via xscanimage through the network
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backend. It does not crash if there are no saved device settings.
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+ gtkglue: support vectors (requires a "graph" widget; see gimp/app/curves.c)
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+ xscan: make scrollbar wider
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+ xscan: at startup or after rebuilding the dialog, the notebook widget
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displays both the standard and advanced options simultaneously
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+ xscan: pnm backend causes crash when hitting "Defaults" button
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+ scan: add three pass scanning support
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+ xscan: double-clicking selection should imply OK
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+ xscan: enabling the gtk_rc_parse() code causes segfault when scanning in
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three-pass mode (pnm backend) => bug in gtkstyle.c (patch submitted)
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+ qcam: implement "christmas light" filter
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+ xscan/qcam: after scanning a preview, the original scan area seems to
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|
get lost somehow => bug in restoring the scan area settings
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|
+ qcam: image always comes out black until the blacklevel has been modified;
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why is this? => send dummy black-level after qc_reset()
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+ xscan: provide access option doc strings
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+ xscan: in GIMP mode, RED/GREEN/BLUE frames are not handled properly yet.
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+ preview: bit-depth is currently ignored (makes lineart etc fail)
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+ sanei: allow saving/restoring options on a per-device and per-user basis
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+ xcam: replace ugly top-left/bottom-right corner coordinates with something
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|
more useful => they're advanced options now
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+ preview: modifying the scan area coordinates should update the selection
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+ preview: should we allow saving the current preview image? => yes
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+ xscan: make it possible to build with gtk alone (i.e., without gimp libs)
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+ xscan: use same scan-logic as preview (select-based, if possible);
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|
should be able to share most of the code
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|
+ replace params.first_frame with params.last_frame---i don't know how to
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|
use the former, the latter would be useful for xcam to implement support
|
|
for individual R/G/B frames
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|
+ saned: add multi-host capabilities (selection-phase ... how ??).
|
|
+ saned: add authorization
|
|
+ ensure frontend never link sanei_*() functions dynamically
|
|
+ always define unique names in backends and define weak-aliases for
|
|
generic names where elf_alias is available---this should make it
|
|
easy to add "pre-load" support to dll.c (either for faster loading or
|
|
for systems that don't have dl*())
|
|
+ make install: don't overwrite existing configuration files
|
|
+ xcam: let user be able to type in a device string
|
|
+ mustek: make sane_close() hang around until sane_cancel() has finished
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|
+ net: implement it: socket-based backend [Andy is working on this]
|
|
+ need a camera front end (to allow recording video & audio)
|
|
+ qcam: allow changing all parameters "on-the-fly" (while scanning)
|
|
+ qcam backend: implement sane_set_io_mode() and sane_get_select_fd()
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|
+ make "scan" print current value of each option
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|
+ make "scan" apply any options before printing help message
|
|
+ initialize backend debug level through environment variable (e.g.,
|
|
SANE_DEBUG_LEVEL)
|
|
+ allow abbreviating string values and make them case-insensitive (as long
|
|
as they're unique) => see sanei_constrain_value()
|
|
+ add support to "scan" for setting options to "automatic"
|
|
+ update documentation and convert to latex & html
|
|
+ add --width/--height support
|
|
+ update Mustek backend with new notion of inactive options
|
|
+ in verbose multibit mode print min/max graylevel value
|
|
+ Mustek segfaults after ctrl-C => need -Bsymbolic to ensure mustek backend's
|
|
references to sane_foo() get resolved within backend
|
|
+ test parsing of boolean options
|
|
+ --mode Gray causes segfault
|
|
+ change scan to use getopt_long
|
|
+ make Mustek backend work without having to first call get_devices()
|
|
+ implement meta backend
|
|
+ bring pnm backend up to speed
|