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Diffstat (limited to 'doc/gt68xx')
| -rw-r--r-- | doc/gt68xx/gt68xx.CHANGES | 720 | ||||
| -rw-r--r-- | doc/gt68xx/gt68xx.TODO | 105 |
2 files changed, 825 insertions, 0 deletions
diff --git a/doc/gt68xx/gt68xx.CHANGES b/doc/gt68xx/gt68xx.CHANGES new file mode 100644 index 0000000..43f2e85 --- /dev/null +++ b/doc/gt68xx/gt68xx.CHANGES @@ -0,0 +1,720 @@ +gt68xx.CHANGES -*-text-*- + +V 1.0.84 (2007-08-19) + +* Added Artec Ultima 2000 e+, Nortek Myscan 1200, NeatReceipts Scanalizer + Professional, Genius Colorpage Slim-1200. +* Name and email address changes. + +V 1.0.83 (2007-01-28) + +* Added .conf entry for Plustek OpticPro S12 and S24. Updated .desc file. + +V 1.0.82 (2006-10-03) + +* Added support for Genius Colorpage SF600. + +V 1.0.81 (2006-05-21) + +* Added support for Plustek OpticPro S24 (some models). Added .conf entry for + Plustek OpticPro S12. + +V 1.0.80 (2006-01-02) + +* Added Plustek OpticPro S(T)12 (product id 0x040b). Mostly untested. +* Print warmup message 5 seconds after starting the warm-up. + +V 1.0.79 (2005-12-09) sane-backends 1.0.17 + +* Silenced warning when scan is cancelled. +* Silenced often non-fatal check_result error messages. +* Reduced timeout for cancelling a scan. Some scanners freeze for 30 seconds + otherwise. Repeat is_moving test even if an error was received. +* Run fix_descriptors before cancelling the scan. Without that, some gt6816 + scanners are not detected anymore after closing the device. +* Fixed wait_lamp_stable. Wait for a maximum time of 60 seconds. Print + warming up message after 5 seconds. Print how long warming up took. +* For Mustek ScanExpress A3 USB, use more intelligent warm-up mechanism. The + brightness for this scanner first decreases and then increases again. With the + previous logic the scanner always warmed up for at least 10 seconds even if it + wasn't necessary. +* Warm up lamp also when changing from flatbed to transparency. Without this the + lamp may be too dark directly after changing the source. +* Decreased scan width of Plustek OpticPro 1248U. This fixes some strange color + artifacts and results in less backtracking in some modes. + +V 1.0.78 (2005-10-16) + +* Minor modifications to sheet-fed scanner support. + +V 1.0.77 (2005-09-29) + +* Added support for Plustek OpticSlim M12 (untested). Based on patch from + Gerhard Jaeger <gerhard@gjaeger.de>. +* Fixed gt68xx homepage links in man page. Changed minimum version of libusb + to 0.1.8. + +V 1.0.76 (2005-09-18) + +* Fixed segfault that may happen with Mustek ScanExpress A3 USB. + +V 1.0.75 (2005-09-01) + +* Genius ColorPage Vivid 1200 X is reported to work. +* Genius ColorPage Vivid 4 XE seems to be the same as 4 X, it just doesn't have + buttons. +* Cleanup of .desc file. +* Fixed gain setting. +* Mustek ScanExpress A3 USB 600 dpi color scanning works now. + +V 1.0.74 (2005-08-20) + +* Increased number limit of scanners that can work with this backend to 50. +* Added support for Genius ColorPage Vivid 1200 X (untested). + +V 1.0.73 (2005-08-19) + +* Enabled GT68XX_FLAG_NO_STOP for Mustek BearPaw 2400 CU Plus. Some of these + scanners don't seem to like that command. + +V 1.0.72 (2005-08-18) + +* Finally fixed the problem concerning scanning on *BSD. Scanning only worked + once. After that, the scanner wasn't even detected anymore beacuse the config + descriptor returned by the device was corrupted. This is a hardware bug. When + filling the internal memory of the scanner completely, the config descriptor + is overwritten. The work-around is to ask the scanner for the device + descriptor before closing the device. This rewrites also the config descriptor + to the memory of the scanner. +* Fixed compilation warnings. + +V 1.0.71 (2005-07-10) Included in sane-backends 1.0.16 + +* Changed resolution from 75 to 100 dpi and changed 16 bit/color to 12 based on + a user report for the Visioneer OneTouch 7300. Updated .desc. +* Moved check for stable lamp to its own function. +* Mustek ScanExpress A3 USB: Use CIS calibration. Use lamp warmup. +* Fixed CCD on GT6801 scanning (color scanning was broken due to a change in + motormode_2. + +V 1.0.70 (2005-05-29) + +* Start exposure with the settings from the scanner entry. +* CIS Calibration and exposure uses a broader spectrum now. +* Expsoure limit is increased to 50 loops. +* Genius Vivid 4x is reported to work so the UNTESTED label is removed now. +* Visioneer 7300 is reported to work so the UNTESTED label is removed now. +* Genius ColorPage Vivid 1200XE: Removed UNTESTED label. Fixed + resolutions. Adjusted margins. Fixed color order. Fixed linedistance. + Adjusted AFE. +* Mustek ScanExpress 1248 UB: Fixed margins. Adjusted AFE. Adjusted + exposure. Adjusted gamma. Changed status to "complete". +* Mustek BearPaw 2400 CU Plus: Adsusted exposure and AFE parameters. Hopefully + stripes and similar trouble are gone now. +* Mustek BearPaw 1200 CU: Increased exposure to avoid vertical lines. +* Updated manual page. + +V 1.0.69 (2005-05-20) + +* Mustek BearPaw 1200 CU Plus model 0x21b works now. Fixed firmware and offset + settings. Calibration is not completely ok yet, however. +* Code cleanup for setup_scan (only one function for all chipsets). +* Simplified line mode/pixel mode setting +* Updated TODO. +* Mustek BearPaw 2448 TA Plus is now only "basic". Too much trouble for + "good". +* Removed option "fast preview". By default for preview mode 8 bits/pixel + are used. +* Fixed indentation. +* Full scan really scans from y=0 on gt6816 scanners now. + +V 1.0.68 (2005-05-07) + +* GT68XX_FLAG_NO_STOP is needed for BearPaw 2448 TA Plus. +* Plustek OpticSlim 2400: Fixed list of resolutions. That fixed the + preview. Removed "untested" warning. Adjusted scan area. +* Updated gt68xx.TODO. +* Find firmwares independent of capitalization (bug #301580). + +V 1.0.67 (2004-11-14) + +* Fixed test to move home sensor at the start of scan. +* Fixed gray mode linemode test. That stopped e.g. the Plustek OpticPro U 16 B + from working in gray mode. + +V 1.0.66 (2004-10-31) + +* Removed unused gain and offset options. + +V 1.0.65 (2004-10-11) + +* Used new lamp option from saneopts.h. +* Fixed typos. +* Added Packard Bell Diamond 2450 to .conf and changed status to "good". +* Avoid error message when closing scanner. +* Don't print max_white warning when debugging is not enabled. + +V 1.0.64 (2004-10-02) + +* Added Trust 240TH easy Webscan Gold to list of supported devices. +* Changed status of Visioneer 7300 to basic. +* Changed name of Genius 1200 EX to "XE". That seems to be the real name. Fixed + firmware name. Changed status to "minimal." + +V 1.0.63 (2004-09-03) + +* Fixed firmware name for Mustek 1248 UB. Changed status to basic. Removed + "unsupported" warning. +* Added workaround for shared memory compilation problem on Windows. +* It's now possible to add a new vendor/product id line to gt68xx.conf to test + yet unsupported scanners without changing the source code. + +V 1.0.62 (2004-08-08) + +* Added detection for Mustek ScanExpress 1248 UB. It's untested however and I + don't even know the name of the firmware. +* Added new id for Mustek BearPaw 1200 CU Plus (0x021b). It's completely untested. + +V 1.0-61 (2004-06-18) + +* General: + * Re-enabled forked reader process when fork is not disabled. That's faster + with high resolutions and big scan widths. + * In gray and lineart mode the color to be used can be selected now. + * Resolution and depth lists are now in the "correct" order. + * Fixed "move to the end" bug when full scan is enabled. + * Used SANE_VALUE_SCAN_MODE_* macros. + * Added debugging code for brightness/calibration. + * Changed status of Genius Colorpage Vivid4x too good. + * Removed special command set for U16B (and Genesys Vivid4) as those scanners + are quite normal GT6816 devices. + * Removed special test for gt6816, 600 dpi, 16 bits -> linemode. The other + tests should change the settings to linemode if necessary. + * Added flag to indicate that a scanner doesn't support linemode. Print an error + if linemode is activated for that sort of scanners. + * Adjusted various debug levels. + * Added options to force backtracking and to set the number of lines to + backtrack. + * Increased default lamp-warmup time to 60 seconds. Also lamp-warmup doesn't + stop if lamp brightness is 0. + * reader_process returns an error now if read fails. + * Added gt68xx.TODO. + * Removed XDBG macros. Used DBG instead. + * Checks for correct gain and offset are in gt68xx_generic now. + * Fixed gain setting (including multiplier). + * Check for status of read_scanned_data every 10 ms. Avoids short stops before + scan data comes in. + * Added resolution limit for using backtracking. + * Reduced deafult CCD backtracking to 0x10 lines. +* CCD coarse calibration: + * Check if calib has succeeded per color now (fewer loops). + * Added loop detection now. + * Use the brightest CCD element as max_white now. + * Added debugging DEFINE to check the position of the black mark. + * Print which color is currently calibrated. + * Changed debug messages. +* CIS coarse calibration: + * Removed offset multiplier. + * Changed limits. + * Changed debug messages. + * Incresed exposure count. + * Removed special lamp-warmup in CIS calibration. + * CIS coarse calibration now does gain and offset at the same time + similar to CCD calibration. This change should avoid loops. + * Print which color is currently calibrated. +* Mustek ScanExpress A3 USB: + * Fixed black mark. + * Use CCD calib now. + * Use inverted offset. + * Warm up for 10 seconds minimum. + * Fixes for geometry. +* Plustek OpticPro U16B (and Genius Vivid 4): + * Linemode is not supported + * Reduced vertical res to 600 dpi. +* Mustek BearPaw 1200 TA: + * Fixed position of black mark. +* Mustek BearPaw 2448 TA Plus: + * Fixed position of black mark. +* Mustek BearPaw 1200 CU: + * Increased start of white strip. + +V 1.0-60 (2004-04-19) + +* Mustek BearPaw 2448 TA PLUS: + - Fixed resolution settings (added missing 200 dpi mode) + - Fixed margins + - Fixed black mark + - Fixed TA margins + - Removed untested flag + - Changed status to "good" + +V 1.0-59 (2004-04-10) + +* Used 0, 4, 4 as linedistance for Mustek A3 USB. +* Other mionor fixes for A3 USB. +* Removed "unsupported scanner warning" from Mustek A3 USB. +* Added Genius Colorpage Vivid4 to .conf file. Changed status to good. Added + to man page. +* Fixed black mark for Mustek BearPaw 2448 TA Plus. This one and the Mustek A3 + fixes are from Jakub Dvořák <xdvorak@chello.cz>. +* Status of BearPaw 2448 TA/CS Plus is "basic" now. + +V 1.0-58 (2004-04-04) + +* Added BGR color order for pixel mode. Until now, only line mode worked in + that mode. +* Plustek U16B uses setup_scan for gt6816 now. +* Fixed linedistance for Plustek U16B. +* Enabled 16 bit mode for Plustek U16B. +* Fixed margins for Plustek U16B. +* Made 600 dpi mode for Mustek BearPaw 2400 TA Plus a bit faster. +* Changed Mustek ScanExpress A3 linedistance correction to 1, 5, 5 (?). +* Added detection of Visioneer Onetouch 7300. + +V 1.0-57 (2004-03-28) + +* Plustek U16B: Added GT68XX_FLAG_SE_2400. Fixed color order. +* Increased debug level for setup_scan. +* Fixed CCD ocarse calibration. + +V 1.0-56 (2004-03-19) + +* Genius Vivid 4xe now has color order RGB. +* Removed 50 dpi for Mustek BearPaw 2448 as that resolution doesn't work. +* Make sure that the lamp of the Mustek A3 USB gets warmed up. It's a CIS + scanner with a lamp. That code is untested. +* Full scan starts scanning from the start position of the white strip now. + +V 1.0-55 (2004-03-06) + +* Added detection for Genius Vivid 1200 EX. +* Fixed product id of Mustek BearPaw 2448 TA Plus. +* Other minor updates. + +V 1.0-54 (2004-02-10) + +* Added basic support for Plustek OpticSlim 2400. Thanks to Radoslaw Grzanka and + Detlef Gausepohl for providing details and testing. +* Fixed calibration debug output. + +V 1.0-53 (2004-01-19) + +* Debug options are only enabled if the debug level is 1 and higher. This may + stop some people from activating dangerous options. +* Added product id 0x0402 for Plustek U16B. + +V 1.0-52 (2004-01-01) + +* gt68xx_gt6801.c: Fixed a bug in the stop scan function for Plustek U16b. +* Added support for Genius Vivid4xe. + +V 1.0-51 (2003-12-14) + +* Changed color order to RGB vor Genius Vivid 4x. Seems to work now. Updated + manpage and .desc. +* Set linedistance correction to 0, 4, 2 for ScanExpress A3 USB. Not perfect + yet but better than before. +* Added Genius Colorpage Vivid3 V2 and Googlegear 2000 as supported deviced + to manpage and .desc. +* Changed Genius Colorpage Vivid3x status to good as it seems to work now. +* Changed status of Mustek BearPaw 2448 TA Plus to minimal as it seems to at + least scan something. + +V 1.0-50 (2003-11-23) + +* Added Mustek BearPaw 2448 TA Plus. It's completely untested. +* Added special command set for Plustek U16B. Changed stop scan command and + download_firmware. Everything is untested. +* Added Plug-n-Scan 2400 M(T) to list of devices. No positive report yet. +* Used request for memory writes and reads instead of a fixed value of 0x04. +* Set Genius Vivid4x to GT6816. Untested. + +V 1.0-49 (2003-09-30) + +* Fixed wrong test for allocation in gt68xx.c. +* Added ScanMagic 1200 UB Plus to man page and .desc. +* Added Settings for Plustek OpticSlim 1200 +* Added detection of Genius Vivid 4x. It won't work out-of-the-box, however. +* CCD coarse calib shouldn't run into an endless loop anymore. Plustek 1248U + is much faster now. + +V 1.0-48 (2003-07-25) + +* Added RevScan 19200i to manpage and .desc file. +* Updated .desc file to new :status system. +* Added Fujitsu 1200CUS to man page, .conf and .desc. +* Changed .conf file to be more readable. +* Added RevScan 19200i to .conf file. +* Added Plustek U16B to .desc and .conf, updated UT16B. + +V 1.0-47 (2003-06-05) + +* Don't check if the firmware is loaded. The check seems to confuse the USB + system on some UHCI chips. + +V 1.0-46 (2003-04-27) + +- Added Genius 3x as working scanner, removed testing flag. +- Added Artec 2000 e+ to manpage. +- Added detection for the Plustek OpticPro U16B. + +V 1.0-45 (2003-04-11) + +- Updated Mustek BearPaw 1200 CU Plus white strip value. +- Set Mustek ScanExpress A3 USB to CCD. Black mark may be still wrong. +- Minor formatting changes in the manpage. +- Decreased ScanExpress A3 USB status to alpha because of CIS/CCD change. + +V 1.0-44 (2003-03-13) + +- Added Packard Bell Diamond 1200 Plus to .desc and manpage. +- New flag to avoid running stop_scan before doing a scan. The Windows firmware + of the BearPaw 1200 CU Plus doesn't seem to like that. + +V 1.0-43 (2003-03-06) + +- Small requests are done with a response buffer of 8 bytes (instead of 64) + now. Looks like GT-6816 based scanners return 8 bytes if the firmware is + loaded and 64 bytes if it's not loaded. +- Changed GT-6816 firmware check to ignore errors from above change. + GT-6816 scanners work with the BSDs now (at least once). +- Updated manpage concerning the BSDs. + +V 1.0-42 (2003-03-02) + +- Make sure that the firmware for plustek-like scanners is loaded. Didn't work for + Genius vivid3xe. +- Added both Genius scanners to man page. +- Removed warning from Genius Vivid3xe. + +V 1.0-41 (2003-02-27) + +- Added Genius Colorpage Vivid3xe. +- Added request_type and request fields to the command set. Request is 0x01 + or 0x04. + +V 1.0-40 (2003-02-22) + +- Added vid/pid 0x07b3/0x0400 to gt68xx.conf also +- Added indormation about Medion 4394. +- Mention ma1509 backend. +- Fix segfault when calling sane_open with an empty device name. +- Explicitely initialize global variables to avoid segfaults when calling + sane_init/sane_exit more than once. + +V 1.0-39 (2003-02-16) + +- Added BearPaw 2400 CS Plus as supported. +- Make fast preview the default (otherwise BP 2400 TA Plus wouldn't work with + 12/16 bits). +- Added vid/pid 0x07b3/0x0400, that's another Plustek OpticPro 1248U. + + +V 1.0-38 (2003-02-05) + +- Fixed resolutions for BearPaw 1200 TA (75 instead of 100). +- Increase the lowest black for CCD coarse calibration to avoid too much black. +- Adjusted internal gamma correction to avoid getting 0 for high gamma values. +- CCD scanners use color mode for coarse+quality cal now. This fixes the + problem with extremly high gains and terrible quality cal in gray mode at + least for the BearPaw 1200 TA. +--> Thanks to Alexei V. Mezin for reporting these bugs. +- Preview isn't always in 8 bit mode now (can be selected by option). +- Upper and lower limits for coarse calibration are unified now. +- Added options for adjusting gain and offset. + +V 1.0-37 (2003-01-18) + +- Removed untested flag from A3 USB and Lexmark X70/X73. + +V 1.0-36 (2003-01-09) + +- Updated manpage and .desc concerning Lexmark X70. +- Updated manpage concerning kernel 2.4.21-pre3 containing the 1-endpoint fix. +- Fixed A3 USB resolution setting. +- Updated A3 USB margins (Pedro Morais <morais@inocam.com>). +- Added detection of Genius Colorpage Vivid3x. It's unknown if it works. +- Updated .desc file. +- Don't print calib line warnings by default. + +V 1.0-35 (2002-12-23) + +- Added "afe" option for gt68xx.conf for selecting default afe values. +- Removed AFE and exposure SANE options. +- Added documentation for afe option in gt68xx.conf. + +V 1.0-34 (2002-12-18) + +- fixed gt68xx_gt6801 -> lamp control. +- adjusted Plustek 1248U geometry and afe values. +- CCD gross calibration changed: start with the default value from module struct. + Is faster now for most cases. +- Only 2.5 mm of calibration for GT-6801 scanners. + +V 1.0-33 (2002-12-10) + +- Updated ScanExpress 2400 USB values (from "Fan Dan" <dan_fancn@hotmail.com>). +- Added implementation of gt6801 lamp control for CCD scanners. +- Added flag for SE 2400 USB, added some quirks in gt68xx_gt6801.c. + +V 1.0-32 (2002-12-08) + +- "Coarse calibration for first scan only" is off by default now. As at least + CIS calibration is faster now, it doesn't seem to be necessary and produces + wrong images sometimes. +- Added gamma table. +- Setup gamma to 2.0 by default. +- Fixed (hopefully) sigpipe when cancelling. +- No geometry quantization anymore (not necessary). That should fix scanimage + warnings. +- Plustek 1248U: do linemode for every resolution, fix color correction. +- Set SANE_CAP_EMULATED for gamma value. +- Added comments for every Model member in gt68xx_devices. +- Added Plustek UT16B and Genius Vivid3x to .desc. +- Added implementation for inverted offset for CCD scanners. +- Added Mustek ScanExpress 2400 USB. Well, at least it's detected. +- Added NEW marker to .desc. + +V 1.0-31 (2002-11-21) + +- Changed 150 to 200 dpi for Mustek BearPaw 2400 TA. +- Fixed warnings in gt68xx_low.c +- Used DBG instead of XDBG in gt68xx_low.c +- Minor manpage fixes. Added man page links to other backends. +- gt68xx_low.h: Fixed __FUNCTION__ bug on non-gcc compilers. +- Added more details about the BSDs in the manpage. +- Fixed color order for ScanExpress A3 USB. + +V 1.0-30 (2002-11-13) + +- Added basic support for Plustek OpticPro 1248U (from Gerhard Jaeger + <gerhard@gjaeger.de>). Only gray mode without calib seems to work until + now. +- Removed 50 and 1200 dpi from Lexmark X73 (doesn't seem to work). Decreased + height. +- Backend status is BETA now. + +V 1.0-29 (2002-11-07) + +- Changed option titles and descriptions to make them better readable. +- Added translation markers for all options. +- Added German translation for backend options. +- Updated manpage and .desc file concerning scanner status. +- Added untested flag for Mustek ScanEpress A3 USB and Lexmark X73. + +V 1.0-28 (2002-10-31) + +- Reduce scan width of 2400 TA Plus: otherwise the black mark would create + light vertical stripes. +- Removed default parameters. Set AFE and exposure in every model struct. +- Faster automatic gain setting for the CIS scanners. The default values from + the model struct and the last values are used for calculation. +- Set default AFE values for ScanExpress 1200 UB Plus, BearPaw 1200 CU, BearPaw + 2400 CU Plus. + +V 1.0-27 (2002-10-25) + +- Bugfix: override applies to all devices found by the last usb line. +- Individual resolutions + depth values for every scanner. +- Bugfix: Mirroring code had an off-by-one error (garbage in the first column). +- Artec Ultima 2000, MD 9385: Removed 1200 dpi mode (doesn't seem to work?), + added 100 and 200 dpi modes. Renamed model to Artec Ultima 2000, because + that's probably the "father" of all the clones. +- Mustek BearPaw 1200 CU: Added 200 dpi mode. +- Added manual page. +- Removed override for Packard Bell (seems to be exact Bearpaw 1200 CU Plus + clone). +- Removed override for Trust Copmact Scan and Medion/Tevion/Lifetec LT 9452 + (Mustek ScanExpress 1200 UB Plus clones). +- Removed override for Tevion MD 9458 (seems to be an Artec Ultima 2000 (e +?) + clone). + +V 1.0-26 (2002-10-22) + +- Several fixes for Medion MD-9385 and Artec Ultima 2000 based scanners. The + Cytron MD 9385 works now. +- Diabled Plustek-like firmware check again, didn't work for MD 9385. +- Splitted flags for mirror_x and sset_home. + +V 1.0-25 (2002-10-20) + +- Fixed segfault for GT-6801 based scanners. +- Added override for Medion MD9385. +- Changed firmware detection code for Plustek scanners. +- CIS autogain seraches max white and min black now (removed segment code). + Hopefully no more vertical stripes. +- Adjusted ScanExpress 1200 UB Plus and BearPaw 1200 CU geometry and white + strip. + +V 1.0-24 (2002-10-12) + +- Added "override" keyword for gt68xx.conf. So model settings can be changed + at run-time. If set up correctly, firmware lines aren't necessary any more. +- Added support for the Mustek BearPaw 2400 CU. +- Tevion hack (now enabled by override option) also mirrors coordinates. +- Mustek BearPaw 1200 TA 1200 dpi is set up for the Windows firmware again. +- Added some basic I18N markers. +- Removed option backtrack (setup automatically now). + +V 1.0-23 (2002-10-10), + +- Added detection of Mustek BearPaw A3 USB. +- Added auto-detection of lamp status for CCD scanners (from David Stevenson). + No wait for the fixed time of 40 seconds any more. +- The scan slider of the GT-6816 bsed scanners don't move home after + calibration/gain. TA mode is faster therefore. +- Added hack for Tevion MD 9458 to solve the mirror and "scan-slider doesn't + come home" problems. +- Fixed BearPaw 1200 TA 1200 dpi problem. +- Fixed manual firmware selection in gt68xx.conf. +- Added warning if power supply isn't ok. + +V 1.0-22 (2002-10-07), + +- Mustek Bearpaw 2400 CU Plus works in gray mode again +- Line calibration uses the bit depth of the main scan now. +- Vendor, product ids and other information is printed when debugging is active +- Fixed segfault in attach (). +- Fixed endianess issues (untested). +- Code cleanup. + +V 1.0-21 (2002-10-07), + +- Added 12 bit modes for all scanners (Sergey Vlasov). +- Fixed 2400 TA Plus in 12/16 bit modes in 1200/2400 dpi. +- Disable depth option in lineart mode and for some scanners in gray mode. +- Scan preview in 8 bit. + +V 1.0-20 (2002-10-06) + +- Calibration of the CCD scanners in gray mode should work better now. +- Added 50 dpi mode for BearPaw 2400 TA Plus. Faster preview. +- By default, /usr/local/share/sane/gt68xx/ is checked for firmware files. + Manual adjustment is only necessary if the firmware name is different from + default or at a different path. +- Mixed and lower-case is tried when loading the firmware. +- Adjusted geometry of BearPaw 1200 TA and 2400 TA. +- Automatic gain fixes for TA mode. +- Don't show "lamp off" option for CIS scanners. + +V 1.0-19 (2002-10-01) + +- Various minor fixes and adjustments concerning calibration. +- Fixed sane_open detection of already known devices. +- Added missing usleep for 2400 CU Plus. +- Adjusted scan area for 1200 TA. +- Removed detection of Artec Umltima 2000 (product id 0x4001) as this is not + a GT-68xx based scanner. +- Fixed some compilation warnings. +- Minor misc fixes. + +V 1.0-18 (2002-10-01) + +- Added detection of Artec Ultima 2000. +- Updated Lexmark X70 settings. +- Fixed segfault that occured when no device was detected. +- Changed test for loaded firmware for GT-6801 scanners. + +V 1.0-17 (2002-10-01) + +- Added support for the Lexmark X70 and X73 scanners +- Fixed shifted columns problem for BearPaw 2400 TA Plus and maybe 2400 TA. +- Fixed y-margin for the BearPaw 1200 TA (at least I hope so) +- Fixed BearPaw 2400 CU Plus firmware name +- Removed gt68xx_test program from distribution. Didn't work anymore anyway. + +V 1.0-16 (2002-09-29) + +- Added calibration and auto-gain support for transparency adapter mode. +- In transparency adapter mode, only the usable scan area is shown. +- Autogain is repeated when source was change.d +- Fixed geometry of ScanExpress 1200 UB Plus. +- Fixed freeze at the end of scan for GT-6801-based scanners. + +V 1.0-15 (2002-09-27) + +- Low level reading is done in a separate process now (shm is back). Some + scanners should be faster therefore. +- Added option "force backtracking". If disabled, no backtracking occurs + (->faster, but lines are lost). +- Fixed hang in reader_process. +- Fixed "auto gain once" (which really worked only once :-/) + +V 1.0-14 (2002-09-25) + +- Added basic transaprency adapter support for the Mustek Bearpaw 2400 TA + Plus. Other TA models may work also. No calibration or other nice features, + just pure external lamp on, internal lamp of. +- Support for the Mustek BearPaw 1200 Cu Plus (hopefully). +- Added Lineart (black/white) mode. +- Added warming-up for CCD lamps and an option to disable shutting off the + lamp. +- Print scanning time (debug level 3). +- Removed "safe preview". Not longer necessary. + +V 1.0-13 (2002-09-25) + +- Major rewrite of the low level scan setup functions. Probably has broken + some of the supported scanners. +- Geometry in the model struct is in mm now. Values for most scanners are + untested. +- Added support for Mustek Bearpaw 2400 CU Plus. +- CCD lamp is turned on when opening the frontend and turned off when leaving. +- Auto gain is done only for the first scan. +- Manual gain etc. options don't show up in automatic mode. +- Faster automatic gain. +- Bugfixes: gain/offset options, moving top-margin and exposure control. + +V 1.0-12 (2002-09-23) + +- Fixed bug concerning too little data transferred in sane_read. +- Added detection of the Packard Bell Diamond 1200. +- Changed some scanner names and added support for custom names in config file. +- Use the size of the scan area in the model struct. This value may need + some tweaking for the gt6816 scanners. +- Fixed the size of scanarea for the BearPaw 1200 CU/ScanEpress 1200 UB Plus +- Disabled 16 bit mode for GT-6801 scanners. This isn't even supported by the + Windows driver. +- General code cleanup. Removed gt68xx_mustek.c and SHM support. +- Made the .tar.gz file size smaller. + +V 1.0-11 (2002-09-22) + +- 1200 dpi works now at least for the BearPaw 1200 CU. Maybe also for the + other scanners. +- Added manual and automatic offset/gain/exposure control for the CIS + scanners. The image should be better now. +- Added debug option to scan the full scan area including the calibration + strip. + +V 1.0-10 (2002-09-18) + +- 50, 75, 150, 300, 600 work now for the GT6801 scanners +- Preview is fast again (can be set to safe/slow mode) +- Calibration can be disabled by option +- Added some more safety checks for USB commands +- The gt68xx_test program can be used again + +V 1.0-9 (2002-09-17) + +- Added option to disable automatic gain (->less ugly colors for GT-6801 + based models) +- Fixed segfault that occured when a scan was cancelled +- Preview uses slow but safe (?) 300 dpi 8 bit modes now +- Fixed bug concerning X0/Y0 coordinates +- Started implementing dpeth option (doesn't work yet) +- Internal changes (use high_scan's wait_for_positioning) + +V 1.0-8 (2002-09-16) + +- Fixed distortion problem in color mode +- Selected safer default option values +- Changed file names to be more appropriate for SANE + +V 1.0-7 (2002-09-16) + +- Initial version based on Sergey Vlasov's gt68xx backend v 0.0.6 +- Added basic SANE interface in gt68xx.c +- Added SANE options and SANE variables to gt68xx_high.h +- Minor adjustments to gt68xx_low.h +- Added support for Mustek BearPaw 2400 TA Plus diff --git a/doc/gt68xx/gt68xx.TODO b/doc/gt68xx/gt68xx.TODO new file mode 100644 index 0000000..74aeb17 --- /dev/null +++ b/doc/gt68xx/gt68xx.TODO @@ -0,0 +1,105 @@ +gt68xx.TODO -*-text-*- + +General: +-------- + +- some sort of fixed lookup-table may be necessary to compensate for the + non-linear CCD/CIS behaviour. A gamma value is not good enough. Or maybe line + calibration can be used for that? +- Some Plustek scanners are advertised with e.g. 1200x2400 but the maximum + vertical resolution seems to be limited to the horizontal one. Check if + that's really the case. +- Keep a log of all gain/offset combinations already tested and break if + one is repeated to avoid endless loops. +- Print commands that are send to the scanner in clear text. +- Try to implement non-blocking USB bulk reads, check libusb CVS. + +CCD: +---- + +Mustek BearPaw 2400 TA Plus: +- some lines at the beginning of each image have wrong colors (linedistance?) + This seems to happen with other scanners, too. +- 600 dpi no backtrack, 1200, 2400 dpi backtrack (gray), check with windows for + color +- 600 dpi 12 bit seems to work in pixel mode only (but long lines are too big!) + +Mustek BearPaw 1200 TA: +- similar color problem as 2400 TA Plus, doesn't always happen? + +Mustek BearPaw 2448 TA Plus: +- all modes are slow (massive backtracking). If connected to a USB2 port, the + backtracking ich much less despite this scanner can't do USB2. Strange. +- Sometimes there is a USB protocol error when cancelling the scan? +- top borders move with resolution (happened in the early days with 2400 TA!) +- gray scans have different brightness +- scan motor is bumpy and freezes sometimes, looks like accelaration is too big + (firmware problem?) +- vertical stripes +- TA settings are wrong +- no backtrack >= 600 dpi (also gray!) +- don't move before and after scan +- check jpeg output, maybe this can be used for faster scans + +Plustek 1248U: +- Linedistance seems to have problems in the first few and the last lines. +- Gain and offset values are quite high. Optimum values are not reached. Problem + with coarse calib? Better algorithm needed. +- Images in color mode sometimes look too redish (result of above problem). +- quite slow when full width is selected. Lots of backtracking. +- Check if pixel mode is possible. +- Check again 600x1200 dpi. + +Plustek U16B: +- 600 dpi 16 bit is limited to about half the size of the scan area because + only pixel mode works and 16k is the maximum buffer size. +- After scanning, a run of sane-find-scanner leads to a protocol error and + scanning does no longer work. + +Genius ColorPage Vivid 1200XE +- 16 bit per color is advertized but this mode doesn't seem to work + (only 12 bit)? +- 1200x1200 and 1200x2400 dpi doesn't seem to work despite being advertized +- Y-positioning varies slightly with resolution (some mm) + +CIS: +---- + +- It may be necessary to do an additional exposure calibration before the + offset/gain calibration to compensate for different intensities of the + colored leds. Especially for the Mustek 2400 CU Plus. +- Changing exposure doesn't seem to have any effect during calibration + sometimes while it has an effect on the final image? + +Mustek BearPaw 1200 CU +- ok + +Mustek BearPaw 1200 CU Plus (0x021b) +- ok, but similar exposure problems as 2400 CU Plus + +Mustek BearPaw 2400 CU Plus +- ok, but exposure setting may need to be done automatically if the intensity + of the colors varies for different scanners. +- calibration/exposure has sometimes sharp jumps in intensity. Reason is + unknown. + +Mustek ScanExpress A3 USB +- still slight vert. stripes +- why is line distance setup necessary? +- line distance varies with resolution (0,5,5 at 300 dpi, 0, 6, 7 with 150 dpi) +- exposure doesn't seem to have any effect + +Mustek ScanExpress 1248 UB +ok + +Plustek OpticSlim 2400 +- only upto 1200 dpi vertical works +- only 8 and 12 bit work, 16 doesn't (check Windows) +- exposure is extremely high and seems to have similar problems as with other + CIS scanners (reaches limit also) + +Mustek ScanExpress 2400 USB +- make it work (nobody seems to have this device) + +Visioneer OneTouch 7300 +- 16 bit doesn't seem to work despite beeing advertized |