kopia lustrzana https://gitlab.com/sane-project/backends
3214 wiersze
92 KiB
C
3214 wiersze
92 KiB
C
/*.............................................................................
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* Project : SANE library for Plustek flatbed scanners.
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*.............................................................................
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*/
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/** @file plustek-usbshading.c
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* @brief Calibration routines.
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*
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* Based on sources acquired from Plustek Inc.<br>
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* Copyright (C) 2001-2013 Gerhard Jaeger <gerhard@gjaeger.de>
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*
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* History:
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* - 0.40 - starting version of the USB support
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* - 0.41 - minor fixes
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* - added workaround stuff for EPSON1250
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* - 0.42 - added workaround stuff for UMAX 3400
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* - 0.43 - added call to usb_switchLamp before reading dark data
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* - 0.44 - added more debug output and bypass calibration
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* - added dump of shading data
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* - 0.45 - added coarse calibration for CIS devices
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* - added _WAF_SKIP_FINE to skip the results of fine calibration
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* - CanoScan fixes and fine-tuning
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* - 0.46 - CanoScan will now be calibrated by code in plustek-usbcal.c
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* - added functions to save and restore calibration data from a file
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* - fixed some TPA issues
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* - 0.47 - made calibration work on big-endian machines
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* - 0.48 - added more debug output
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* - added usb_AutoWarmup()
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* - 0.49 - a_bRegs is now part of the device structure
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* - using now PhyDpi.y as selector for the motor MCLK range
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* - 0.50 - readded kCIS670 to add 5% extra to LiDE20 fine calibration
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* - fixed line statistics and added data output
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* - 0.51 - added fine calibration cache
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* - 0.52 - added get_ptrs to let various sensororders work
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* correctly
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* - fixed warning condition
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* .
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* <hr>
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* This file is part of the SANE package.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* As a special exception, the authors of SANE give permission for
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* additional uses of the libraries contained in this release of SANE.
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*
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* The exception is that, if you link a SANE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public
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* License. Your use of that executable is in no way restricted on
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* account of linking the SANE library code into it.
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*
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* This exception does not, however, invalidate any other reasons why
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* the executable file might be covered by the GNU General Public
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* License.
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*
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* If you submit changes to SANE to the maintainers to be included in
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* a subsequent release, you agree by submitting the changes that
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* those changes may be distributed with this exception intact.
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*
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* If you write modifications of your own for SANE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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* <hr>
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*/
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/************** global stuff - I hate it, but we need it... ******************/
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#define _MAX_AUTO_WARMUP 60 /**< number of loops */
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#define _AUTO_SLEEP 1 /**< time to sleep, when lamp is not stable */
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#define _AUTO_THRESH 60 /**< threshold for stop waiting (normal lamp) */
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#define _AUTO_TPA_THRESH 40 /**< threshold for stop waiting (TPA lamp) */
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#define _MAX_GAIN_LOOPS 10 /**< max number of loops for coarse calibration */
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#define _TLOOPS 3 /**< test loops for transfer rate measurement */
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#define SWAP_COARSE
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#define SWAP_FINE
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/************************** static variables *********************************/
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static RGBUShortDef Gain_Hilight;
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static RGBUShortDef Gain_NegHilight;
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static RGBByteDef Gain_Reg;
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static u_long m_dwPixels;
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static ScanParam m_ScanParam;
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static u_long m_dwIdealGain;
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static double dMCLK, dExpect, dMax;
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static double dMCLK_ADF;
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/** do some statistics...
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*/
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static void usb_line_statistics( char *cmt, u_short* buf,
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u_long dim_x, SANE_Bool color )
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{
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char fn[50];
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int i, channel;
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u_long dw, imad, imid, alld, cld, cud;
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u_short mid, mad, aved, lbd, ubd, tmp;
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MonoWordDef *pvd, *pvd2;
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FILE *fp;
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SANE_Bool swap = usb_HostSwap();
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pvd = pvd2 = (MonoWordDef*)buf;
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if( color )
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channel = 3;
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else
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channel = 1;
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for( i = 0; i < channel; i++ ) {
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mid = 0xFFFF;
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mad = 0;
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imid = 0;
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imad = 0;
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alld = 0;
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fp = NULL;
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if( DBG_LEVEL >= _DBG_DCALDATA ) {
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sprintf( fn, "%scal%u.dat", cmt, i );
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fp = fopen( fn, "w+b" );
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if( fp == NULL )
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DBG( _DBG_ERROR, "Could not open %s\n", fn );
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}
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/* do the standard min/max stuff */
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for( dw = 0; dw < dim_x; pvd++, dw++ ) {
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if( swap )
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tmp = _LOBYTE(pvd->Mono) * 256 + _HIBYTE(pvd->Mono);
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else
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tmp = pvd->Mono;
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if( tmp > mad ) {
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mad = tmp;
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imad = dw;
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}
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if( tmp < mid ) {
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mid = tmp;
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imid = dw;
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}
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if( fp )
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fprintf(fp, "%u\n", tmp );
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alld += tmp;
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}
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if( fp )
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fclose(fp);
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/* calculate average and 5% limit */
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aved = (u_short)(alld/dim_x);
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lbd = aved - 0.05*aved;
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ubd = aved + 0.05*aved;
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cld = 0;
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cud = 0;
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/* find the number of values beyond the 5% limits */
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for( dw = 0; dw < dim_x; pvd2++, dw++ ) {
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if( swap )
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tmp = _LOBYTE(pvd2->Mono) * 256 + _HIBYTE(pvd2->Mono);
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else
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tmp = pvd2->Mono;
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if( tmp > ubd ) cud++;
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if( tmp < lbd ) cld++;
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}
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DBG( _DBG_INFO2, "Color[%u] (%s): %lu all "
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"min=%u(%lu) max=%u(%lu) ave=%u\n",
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i, cmt, dim_x, mid, imid, mad, imad, aved);
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DBG( _DBG_INFO2, "5%%: low@%u (count=%lu), upper@%u (count=%lu)\n",
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lbd, cld, ubd, cud);
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}
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}
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/**
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*/
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static void
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usb_PrepareFineCal( Plustek_Device *dev, ScanParam *tmp_sp, u_short cal_dpi )
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{
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ScanParam *sp = &dev->scanning.sParam;
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DCapsDef *scaps = &dev->usbDev.Caps;
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*tmp_sp = *sp;
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if( dev->adj.cacheCalData ) {
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DBG( _DBG_INFO2, "* Cal-cache active, tweaking scanparams"
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" - DPI=%u!\n", cal_dpi );
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tmp_sp->UserDpi.x = usb_SetAsicDpiX(dev, sp->UserDpi.x );
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if( cal_dpi != 0 )
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tmp_sp->UserDpi.x = cal_dpi;
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tmp_sp->PhyDpi = scaps->OpticDpi;
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tmp_sp->Origin.x = 0;
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tmp_sp->Size.dwPixels = scaps->Normal.Size.x *
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usb_SetAsicDpiX(dev, tmp_sp->UserDpi.x)/ 300UL;
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}
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#if 0
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if( tmp_sp->PhyDpi.x > 75)
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tmp_sp->Size.dwLines = 64;
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else
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#endif
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tmp_sp->Size.dwLines = 32;
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tmp_sp->Origin.y = 0;
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tmp_sp->bBitDepth = 16;
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tmp_sp->UserDpi.y = scaps->OpticDpi.y;
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tmp_sp->Size.dwBytes = tmp_sp->Size.dwPixels * 2 * tmp_sp->bChannels;
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if( usb_IsCISDevice(dev) && (tmp_sp->bDataType == SCANDATATYPE_Color)) {
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tmp_sp->Size.dwBytes *= 3;
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}
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tmp_sp->dMCLK = dMCLK;
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}
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/**
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*/
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static double usb_GetMCLK( Plustek_Device *dev, ScanParam *param )
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{
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int idx, i;
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double mclk;
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ClkMotorDef *clk;
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HWDef *hw = &dev->usbDev.HwSetting;
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clk = usb_GetMotorSet( hw->motorModel );
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idx = 0;
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for( i = 0; i < _MAX_CLK; i++ ) {
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if( param->PhyDpi.y <= dpi_ranges[i] )
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break;
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idx++;
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}
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if( idx >= _MAX_CLK )
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idx = _MAX_CLK - 1;
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if( param->bDataType != SCANDATATYPE_Color ) {
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if( param->bBitDepth > 8 )
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mclk = clk->gray_mclk_16[idx];
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else
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mclk = clk->gray_mclk_8[idx];
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} else {
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if( param->bBitDepth > 8 )
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mclk = clk->color_mclk_16[idx];
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else
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mclk = clk->color_mclk_8[idx];
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}
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DBG( _DBG_INFO, "GETMCLK[%u/%u], using entry %u: %.3f, %u\n",
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hw->motorModel, param->bDataType, idx, mclk, param->PhyDpi.x );
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return mclk;
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}
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/** usb_SetMCLK
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* get the MCLK out of our table
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*/
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static void usb_SetMCLK( Plustek_Device *dev, ScanParam *param )
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{
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HWDef *hw = &dev->usbDev.HwSetting;
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dMCLK = usb_GetMCLK( dev, param );
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param->dMCLK = dMCLK;
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DBG( _DBG_INFO, "SETMCLK[%u/%u]: %.3f\n",
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hw->motorModel, param->bDataType, dMCLK );
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}
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/** usb_SetDarkShading
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* download the dark shading data to Merlins' DRAM
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*/
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static SANE_Bool usb_SetDarkShading( Plustek_Device *dev, u_char channel,
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void *coeff_buffer, u_short wCount )
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{
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int res;
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u_char *regs = dev->usbDev.a_bRegs;
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regs[0x03] = 0;
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if( channel == CHANNEL_green )
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regs[0x03] |= 4;
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else
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if( channel == CHANNEL_blue )
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regs[0x03] |= 8;
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if( usbio_WriteReg( dev->fd, 0x03, regs[0x03] )) {
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/* Dataport address is always 0 for setting offset coefficient */
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regs[0x04] = 0;
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regs[0x05] = 0;
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res = sanei_lm983x_write( dev->fd, 0x04, ®s[0x04], 2, SANE_TRUE );
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/* Download offset coefficients */
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if( SANE_STATUS_GOOD == res ) {
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res = sanei_lm983x_write( dev->fd, 0x06,
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(u_char*)coeff_buffer, wCount, SANE_FALSE );
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if( SANE_STATUS_GOOD == res )
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return SANE_TRUE;
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}
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}
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DBG( _DBG_ERROR, "usb_SetDarkShading() failed\n" );
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return SANE_FALSE;
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}
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/** usb_SetWhiteShading
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* download the white shading data to Merlins' DRAM
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*/
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static SANE_Bool usb_SetWhiteShading( Plustek_Device *dev, u_char channel,
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void *data_buffer, u_short wCount )
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{
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int res;
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u_char *regs = dev->usbDev.a_bRegs;
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regs[0x03] = 1;
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if (channel == CHANNEL_green)
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regs [0x03] |= 4;
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else
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if (channel == CHANNEL_blue)
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regs[0x03] |= 8;
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if( usbio_WriteReg( dev->fd, 0x03, regs[0x03] )) {
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/* Dataport address is always 0 for setting offset coefficient */
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regs[0x04] = 0;
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regs[0x05] = 0;
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res = sanei_lm983x_write( dev->fd, 0x04, ®s[0x04], 2, SANE_TRUE );
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/* Download offset coefficients */
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if( SANE_STATUS_GOOD == res ) {
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res = sanei_lm983x_write(dev->fd, 0x06,
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(u_char*)data_buffer, wCount, SANE_FALSE );
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if( SANE_STATUS_GOOD == res )
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return SANE_TRUE;
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}
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}
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DBG( _DBG_ERROR, "usb_SetWhiteShading() failed\n" );
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return SANE_FALSE;
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}
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/** usb_GetSWOffsetGain4TPA
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* preset the offset and gain parameter for fine calibration for
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* TPA/ADF scanning
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*/
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static void usb_GetSWOffsetGain4TPA( Plustek_Device *dev )
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{
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ScanParam *param = &dev->scanning.sParam;
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DCapsDef *sCaps = &dev->usbDev.Caps;
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switch( sCaps->bCCD ) {
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case kEPSON:
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DBG( _DBG_INFO2, "kEPSON TPA adjustments\n" );
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param->swGain[0] = 1000;
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param->swGain[1] = 1000;
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param->swGain[2] = 1000;
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break;
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}
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}
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/** usb_GetSWOffsetGain
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* preset the offset and gain parameter for fine calibration for normal
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* scanning
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*/
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static void usb_GetSWOffsetGain( Plustek_Device *dev )
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{
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ScanParam *param = &dev->scanning.sParam;
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DCapsDef *sCaps = &dev->usbDev.Caps;
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HWDef *hw = &dev->usbDev.HwSetting;
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param->swOffset[0] = 0;
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param->swOffset[1] = 0;
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param->swOffset[2] = 0;
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param->swGain[0] = 1000;
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param->swGain[1] = 1000;
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param->swGain[2] = 1000;
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if( param->bSource != SOURCE_Reflection ) {
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usb_GetSWOffsetGain4TPA( dev );
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return;
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}
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/* only valid for normal scanning... */
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switch( sCaps->bCCD ) {
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case kEPSON:
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DBG( _DBG_INFO2, "kEPSON adjustments\n" );
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#if 0
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param->swGain[0] = 800;
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param->swGain[1] = 800;
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param->swGain[2] = 800;
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#endif
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break;
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case kNECSLIM:
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DBG( _DBG_INFO2, "kNECSLIM adjustments\n" );
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if( param->PhyDpi.x <= 150 ) {
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param->swOffset[0] = 600;
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param->swOffset[1] = 500;
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param->swOffset[2] = 300;
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param->swGain[0] = 960;
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param->swGain[1] = 970;
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param->swGain[2] = 1000;
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} else if (param->PhyDpi.x <= 300) {
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param->swOffset[0] = 700;
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param->swOffset[1] = 600;
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param->swOffset[2] = 400;
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param->swGain[0] = 967;
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param->swGain[1] = 980;
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param->swGain[2] = 1000;
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} else {
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param->swOffset[0] = 900;
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param->swOffset[1] = 850;
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param->swOffset[2] = 620;
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param->swGain[0] = 965;
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param->swGain[1] = 980;
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param->swGain[2] = 1000;
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}
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break;
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case kNEC8861:
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DBG( _DBG_INFO2, "kNEC8861 adjustments\n" );
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break;
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case kCIS670:
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DBG( _DBG_INFO2, "kCIS670 adjustments\n" );
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if(param->bDataType == SCANDATATYPE_Color) {
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param->swGain[0] =
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param->swGain[1] =
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param->swGain[2] = 952;
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param->swOffset[0] =
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param->swOffset[1] =
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param->swOffset[2] = 1000;
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}
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break;
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#if 0
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case kCIS650:
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case kCIS1220:
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DBG( _DBG_INFO2, "kCIS adjustments\n" );
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if(param->bDataType == SCANDATATYPE_Color) {
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param->swGain[0] =
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param->swGain[1] =
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param->swGain[2] = 952;
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param->swOffset[0] =
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param->swOffset[1] =
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param->swOffset[2] = 1000;
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}
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break;
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case kCIS1240:
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DBG( _DBG_INFO2, "kCIS1240 adjustments\n" );
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if(param->bDataType == SCANDATATYPE_Color) {
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param->swGain[0] = 950;
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param->swGain[1] = 950;
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param->swGain[2] = 900;
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param->swOffset[0] =
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param->swOffset[1] =
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param->swOffset[2] = 0; /*1000;*/
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}
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break;
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#endif
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case kNEC3799:
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DBG( _DBG_INFO2, "kNEC3799 adjustments\n" );
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if( sCaps->bPCB == 2 ) {
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if( param->PhyDpi.x <= 150 ) {
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param->swOffset[0] = 600;
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param->swOffset[1] = 500;
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param->swOffset[2] = 300;
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param->swGain[0] = 960;
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param->swGain[1] = 970;
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param->swGain[2] = 1000;
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} else if (param->PhyDpi.x <= 300) {
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|
param->swOffset[0] = 700;
|
|
param->swOffset[1] = 600;
|
|
param->swOffset[2] = 400;
|
|
param->swGain[0] = 967;
|
|
param->swGain[1] = 980;
|
|
param->swGain[2] = 1000;
|
|
} else {
|
|
param->swOffset[0] = 900;
|
|
param->swOffset[1] = 850;
|
|
param->swOffset[2] = 620;
|
|
param->swGain[0] = 965;
|
|
param->swGain[1] = 980;
|
|
param->swGain[2] = 1000;
|
|
}
|
|
} else if( hw->motorModel == MODEL_KaoHsiung ) {
|
|
param->swOffset[0] = 1950;
|
|
param->swOffset[1] = 1700;
|
|
param->swOffset[2] = 1250;
|
|
param->swGain[0] = 955;
|
|
param->swGain[1] = 950;
|
|
param->swGain[2] = 1000;
|
|
} else { /* MODEL_Hualien */
|
|
if( param->PhyDpi.x <= 300 ) {
|
|
if( param->bBitDepth > 8 ) {
|
|
param->swOffset[0] = 0;
|
|
param->swOffset[1] = 0;
|
|
param->swOffset[2] = -300;
|
|
param->swGain[0] = 970;
|
|
param->swGain[1] = 985;
|
|
param->swGain[2] = 1050;
|
|
} else {
|
|
param->swOffset[0] = -485;
|
|
param->swOffset[1] = -375;
|
|
param->swOffset[2] = -628;
|
|
param->swGain[0] = 970;
|
|
param->swGain[1] = 980;
|
|
param->swGain[2] = 1050;
|
|
}
|
|
} else {
|
|
if( param->bBitDepth > 8 ) {
|
|
param->swOffset[0] = 1150;
|
|
param->swOffset[1] = 1000;
|
|
param->swOffset[2] = 700;
|
|
param->swGain[0] = 990;
|
|
param->swGain[1] = 1000;
|
|
param->swGain[2] = 1050;
|
|
} else {
|
|
param->swOffset[0] = -30;
|
|
param->swOffset[1] = 0;
|
|
param->swOffset[2] = -250;
|
|
param->swGain[0] = 985;
|
|
param->swGain[1] = 995;
|
|
param->swGain[2] = 1050;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case kSONY548:
|
|
DBG( _DBG_INFO2, "kSONY548 adjustments\n" );
|
|
if(param->bDataType == SCANDATATYPE_Color)
|
|
{
|
|
if(param->PhyDpi.x <= 75)
|
|
{
|
|
param->swOffset[0] = 650;
|
|
param->swOffset[1] = 850;
|
|
param->swOffset[2] = 500;
|
|
param->swGain[0] = 980;
|
|
param->swGain[1] = 1004;
|
|
param->swGain[2] = 1036;
|
|
}
|
|
else if(param->PhyDpi.x <= 300)
|
|
{
|
|
param->swOffset[0] = 700;
|
|
param->swOffset[1] = 900;
|
|
param->swOffset[2] = 550;
|
|
param->swGain[0] = 970;
|
|
param->swGain[1] = 995;
|
|
param->swGain[2] = 1020;
|
|
}
|
|
else if(param->PhyDpi.x <= 400)
|
|
{
|
|
param->swOffset[0] = 770;
|
|
param->swOffset[1] = 1010;
|
|
param->swOffset[2] = 600;
|
|
param->swGain[0] = 970;
|
|
param->swGain[1] = 993;
|
|
param->swGain[2] = 1023;
|
|
}
|
|
else
|
|
{
|
|
param->swOffset[0] = 380;
|
|
param->swOffset[1] = 920;
|
|
param->swOffset[2] = 450;
|
|
param->swGain[0] = 957;
|
|
param->swGain[1] = 980;
|
|
param->swGain[2] = 1008;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(param->PhyDpi.x <= 75)
|
|
{
|
|
param->swOffset[1] = 1250;
|
|
param->swGain[1] = 950;
|
|
}
|
|
else if(param->PhyDpi.x <= 300)
|
|
{
|
|
param->swOffset[1] = 1250;
|
|
param->swGain[1] = 950;
|
|
}
|
|
else if(param->PhyDpi.x <= 400)
|
|
{
|
|
param->swOffset[1] = 1250;
|
|
param->swGain[1] = 950;
|
|
}
|
|
else
|
|
{
|
|
param->swOffset[1] = 1250;
|
|
param->swGain[1] = 950;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case kNEC3778:
|
|
DBG( _DBG_INFO2, "kNEC3778 adjustments\n" );
|
|
if((_LM9831 == hw->chip) && (param->PhyDpi.x <= 300))
|
|
{
|
|
param->swOffset[0] = 0;
|
|
param->swOffset[1] = 0;
|
|
param->swOffset[2] = 0;
|
|
param->swGain[0] = 900;
|
|
param->swGain[1] = 920;
|
|
param->swGain[2] = 980;
|
|
}
|
|
else if( hw->motorModel == MODEL_HuaLien && param->PhyDpi.x > 800)
|
|
{
|
|
param->swOffset[0] = 0;
|
|
param->swOffset[1] = 0;
|
|
param->swOffset[2] = -200;
|
|
param->swGain[0] = 980;
|
|
param->swGain[1] = 930;
|
|
param->swGain[2] = 1080;
|
|
}
|
|
else
|
|
{
|
|
param->swOffset[0] = -304;
|
|
param->swOffset[1] = -304;
|
|
param->swOffset[2] = -304;
|
|
param->swGain[0] = 910;
|
|
param->swGain[1] = 920;
|
|
param->swGain[2] = 975;
|
|
}
|
|
|
|
if(param->bDataType == SCANDATATYPE_BW && param->PhyDpi.x <= 300)
|
|
{
|
|
param->swOffset[1] = 1000;
|
|
param->swGain[1] = 1000;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/** according to the pixel values,
|
|
*/
|
|
static u_char usb_GetNewGain( Plustek_Device *dev, u_short wMax, int channel )
|
|
{
|
|
double dRatio, dAmp;
|
|
u_long dwInc, dwDec;
|
|
u_char bGain;
|
|
|
|
if( !wMax )
|
|
wMax = 1;
|
|
|
|
dAmp = 0.93 + 0.067 * dev->usbDev.a_bRegs[0x3b+channel];
|
|
|
|
if((m_dwIdealGain / (wMax / dAmp)) < 3) {
|
|
|
|
dRatio = ((double) m_dwIdealGain * dAmp / wMax - 0.93) / 0.067;
|
|
if(ceil(dRatio) > 0x3f)
|
|
return 0x3f;
|
|
|
|
dwInc = (u_long)((0.93 + ceil (dRatio) * 0.067) * wMax / dAmp);
|
|
dwDec = (u_long)((0.93 + floor (dRatio) * 0.067) * wMax / dAmp);
|
|
if((dwInc >= 0xff00) ||
|
|
(dwInc - m_dwIdealGain > m_dwIdealGain - dwDec)) {
|
|
bGain = (u_char)floor(dRatio);
|
|
} else {
|
|
bGain = (u_char)ceil(dRatio);
|
|
}
|
|
|
|
} else {
|
|
|
|
dRatio = m_dwIdealGain / (wMax / dAmp);
|
|
dAmp = floor((dRatio / 3 - 0.93)/0.067);
|
|
|
|
if( dAmp > 31 )
|
|
dAmp = 31;
|
|
|
|
bGain = (u_char)dAmp + 32;
|
|
}
|
|
|
|
if( bGain > 0x3f ) {
|
|
DBG( _DBG_INFO, "* GAIN Overflow!!!\n" );
|
|
bGain = 0x3f;
|
|
}
|
|
return bGain;
|
|
}
|
|
|
|
/** limit and set register given by address
|
|
* @param gain -
|
|
* @param reg -
|
|
*/
|
|
static void setAdjGain( int gain, u_char *reg )
|
|
{
|
|
if( gain >= 0 ) {
|
|
|
|
if( gain > 0x3f )
|
|
*reg = 0x3f;
|
|
else
|
|
*reg = gain;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param channel - 0 = red, 1 = green, 2 = blue
|
|
* @param max -
|
|
* @param ideal -
|
|
* @param l_on -
|
|
* @param l_off -
|
|
* @return
|
|
*/
|
|
static SANE_Bool adjLampSetting( Plustek_Device *dev, int channel, u_long max,
|
|
u_long ideal, u_short l_on, u_short *l_off )
|
|
{
|
|
SANE_Bool adj = SANE_FALSE;
|
|
u_long lamp_on;
|
|
|
|
/* so if the image was too bright, we dim the lamps by 3% */
|
|
if( max > ideal ) {
|
|
|
|
lamp_on = (*l_off) - l_on;
|
|
lamp_on = (lamp_on * 97)/100;
|
|
*l_off = l_on + lamp_on;
|
|
DBG( _DBG_INFO2,
|
|
"lamp(%u) adjust (-3%%): %i %i\n", channel, l_on, *l_off );
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
/* if the image was too dull, increase lamp by 1% */
|
|
if( dev->usbDev.a_bRegs[0x3b + channel] == 63 ) {
|
|
|
|
lamp_on = (*l_off) - l_on;
|
|
lamp_on += (lamp_on/100);
|
|
*l_off = l_on + lamp_on;
|
|
DBG( _DBG_INFO2,
|
|
"lamp(%u) adjust (+1%%): %i %i\n", channel, l_on, *l_off );
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
return adj;
|
|
}
|
|
|
|
/** usb_AdjustGain
|
|
* function to perform the "coarse calibration step" part 1.
|
|
* We scan reference image pixels to determine the optimum coarse gain settings
|
|
* for R, G, B. (Analog gain and offset prior to ADC). These coefficients are
|
|
* applied at the line rate during normal scanning.
|
|
* The scanned line should contain a white strip with some black at the
|
|
* beginning. The function searches for the maximum value which corresponds to
|
|
* the maximum white value.
|
|
* Affects register 0x3b, 0x3c and 0x3d
|
|
*
|
|
*/
|
|
static SANE_Bool usb_AdjustGain( Plustek_Device *dev, int fNegative )
|
|
{
|
|
char tmp[40];
|
|
int i;
|
|
double min_mclk;
|
|
ScanDef *scanning = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_long *scanbuf = scanning->pScanBuffer;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
u_long dw, start, end, len;
|
|
SANE_Bool fRepeatITA = SANE_TRUE;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
bMaxITA = 0xff;
|
|
|
|
DBG( _DBG_INFO, "#########################\n" );
|
|
DBG( _DBG_INFO, "usb_AdjustGain()\n" );
|
|
if((dev->adj.rgain != -1) &&
|
|
(dev->adj.ggain != -1) && (dev->adj.bgain != -1)) {
|
|
setAdjGain( dev->adj.rgain, ®s[0x3b] );
|
|
setAdjGain( dev->adj.ggain, ®s[0x3c] );
|
|
setAdjGain( dev->adj.bgain, ®s[0x3d] );
|
|
DBG( _DBG_INFO, "- function skipped, using frontend values!\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
min_mclk = usb_GetMCLK( dev, &scanning->sParam );
|
|
|
|
/* define the strip to scan for coarse calibration */
|
|
m_ScanParam.Size.dwLines = 1;
|
|
m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
|
|
scaps->OpticDpi.x / 300UL;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
|
|
2 * m_ScanParam.bChannels;
|
|
|
|
if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color)
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
|
|
m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
|
|
300UL / scaps->OpticDpi.x);
|
|
m_ScanParam.bCalibration = PARAM_Gain;
|
|
|
|
start = 0;
|
|
len = m_ScanParam.Size.dwPixels;
|
|
|
|
if( scanning->sParam.bSource == SOURCE_Transparency ) {
|
|
start = scaps->Positive.DataOrigin.x * scaps->OpticDpi.x / 300UL;
|
|
len = scaps->Positive.Size.x * scaps->OpticDpi.x / 300UL;
|
|
}
|
|
else if( scanning->sParam.bSource == SOURCE_Negative ) {
|
|
start = scaps->Negative.DataOrigin.x * scaps->OpticDpi.x / 300UL;
|
|
len = scaps->Negative.Size.x * scaps->OpticDpi.x / 300UL;
|
|
}
|
|
end = start + len;
|
|
|
|
start = ((u_long)dev->usbDev.pSource->DataOrigin.x*scaps->OpticDpi.x/300UL);
|
|
len = ((u_long)dev->usbDev.pSource->Size.x * scaps->OpticDpi.x / 300UL);
|
|
|
|
DBG( _DBG_INFO2, "Coarse Calibration Strip:\n" );
|
|
DBG( _DBG_INFO2, "Lines = %lu\n", m_ScanParam.Size.dwLines );
|
|
DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
|
|
DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
|
|
DBG( _DBG_INFO2, "Origin.X = %u\n", m_ScanParam.Origin.x );
|
|
DBG( _DBG_INFO2, "Start = %lu\n", start );
|
|
DBG( _DBG_INFO2, "Len = %lu\n", len );
|
|
DBG( _DBG_INFO2, "End = %lu\n", end );
|
|
DBG( _DBG_INFO, "MIN MCLK = %.2f\n", min_mclk );
|
|
|
|
i = 0;
|
|
TOGAIN:
|
|
m_ScanParam.dMCLK = dMCLK;
|
|
|
|
if( !usb_SetScanParameters( dev, &m_ScanParam ))
|
|
return SANE_FALSE;
|
|
|
|
if( !usb_ScanBegin( dev, SANE_FALSE) ||
|
|
!usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes ) ||
|
|
!usb_ScanEnd( dev )) {
|
|
DBG( _DBG_ERROR, "usb_AdjustGain() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "PhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
|
|
DBG( _DBG_INFO2, "PhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
|
|
|
|
if( end > m_ScanParam.Size.dwPhyPixels )
|
|
end = m_ScanParam.Size.dwPhyPixels;
|
|
|
|
sprintf( tmp, "coarse-gain-%u.raw", i++ );
|
|
|
|
dumpPicInit(&m_ScanParam, tmp);
|
|
dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
|
|
|
|
#ifdef SWAP_COARSE
|
|
if(usb_HostSwap())
|
|
#endif
|
|
usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
|
|
|
|
if( fNegative ) {
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
RGBULongDef rgb, rgbSum;
|
|
u_long dwLoop = (len - start) / 20 * 20;
|
|
u_long dw10, dwGray, dwGrayMax;
|
|
|
|
rgb.Red = rgb.Green = rgb.Blue = dwGrayMax = 0;
|
|
|
|
for( dw = start; dwLoop; dwLoop-- ) {
|
|
|
|
rgbSum.Red = rgbSum.Green = rgbSum.Blue = 0;
|
|
for( dw10 = 20; dw10--; dw++ ) {
|
|
rgbSum.Red += (u_long)(((RGBULongDef*)scanbuf)[dw].Red);
|
|
rgbSum.Green += (u_long)(((RGBULongDef*)scanbuf)[dw].Green);
|
|
rgbSum.Blue += (u_long)(((RGBULongDef*)scanbuf)[dw].Blue);
|
|
}
|
|
|
|
/* do some weighting of the color planes for negatives */
|
|
dwGray = (rgbSum.Red * 30UL + rgbSum.Green * 59UL + rgbSum.Blue * 11UL) / 100UL;
|
|
|
|
if( fNegative == 1 || rgbSum.Red > rgbSum.Green) {
|
|
if( dwGray > dwGrayMax ) {
|
|
dwGrayMax = dwGray;
|
|
rgb.Red = rgbSum.Red;
|
|
rgb.Green = rgbSum.Green;
|
|
rgb.Blue = rgbSum.Blue;
|
|
}
|
|
}
|
|
}
|
|
|
|
Gain_Hilight.Red = (u_short)(rgb.Red / 20UL);
|
|
Gain_Hilight.Green = (u_short)(rgb.Green / 20UL);
|
|
Gain_Hilight.Blue = (u_short)(rgb.Blue / 20UL);
|
|
DBG(_DBG_INFO2, "MAX(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
|
|
Gain_Hilight.Red, Gain_Hilight.Red, Gain_Hilight.Green,
|
|
Gain_Hilight.Green, Gain_Hilight.Blue, Gain_Hilight.Blue );
|
|
|
|
regs[0x3b] = usb_GetNewGain(dev,Gain_Hilight.Red, 0 );
|
|
regs[0x3c] = usb_GetNewGain(dev,Gain_Hilight.Green, 1 );
|
|
regs[0x3d] = usb_GetNewGain(dev,Gain_Hilight.Blue, 2 );
|
|
|
|
} else {
|
|
|
|
u_long dwMax = 0, dwSum;
|
|
u_long dwLoop = (len - start) / 20 * 20;
|
|
u_long dw10;
|
|
|
|
for( dw = start; dwLoop; dwLoop-- ) {
|
|
|
|
dwSum = 0;
|
|
for( dw10 = 20; dw10--; dw++ )
|
|
dwSum += (u_long)((u_short*)scanbuf)[dw];
|
|
|
|
if((fNegative == 1) || (dwSum < 0x6000 * 20)) {
|
|
if( dwMax < dwSum )
|
|
dwMax = dwSum;
|
|
}
|
|
}
|
|
Gain_Hilight.Red = Gain_Hilight.Green =
|
|
Gain_Hilight.Blue = (u_short)(dwMax / 20UL);
|
|
|
|
Gain_Reg.Red = Gain_Reg.Green =
|
|
Gain_Reg.Blue = regs[0x3b] =
|
|
regs[0x3c] = regs[0x3d] = usb_GetNewGain(dev,Gain_Hilight.Green,1);
|
|
}
|
|
} else {
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
RGBUShortDef max_rgb, min_rgb, tmp_rgb;
|
|
u_long dwR, dwG, dwB;
|
|
u_long dwDiv = 10;
|
|
u_long dwLoop1 = (len - start) / dwDiv, dwLoop2;
|
|
|
|
max_rgb.Red = max_rgb.Green = max_rgb.Blue = 0;
|
|
min_rgb.Red = min_rgb.Green = min_rgb.Blue = 0xffff;
|
|
|
|
/* find out the max pixel value for R, G, B */
|
|
for( dw = start; dwLoop1; dwLoop1-- ) {
|
|
|
|
/* do some averaging... */
|
|
for (dwLoop2 = dwDiv, dwR = dwG = dwB = 0;
|
|
dwLoop2; dwLoop2--, dw++) {
|
|
if( usb_IsCISDevice(dev)) {
|
|
dwR += ((u_short*)scanbuf)[dw];
|
|
dwG += ((u_short*)scanbuf)[dw+m_ScanParam.Size.dwPhyPixels+1];
|
|
dwB += ((u_short*)scanbuf)[dw+(m_ScanParam.Size.dwPhyPixels+1)*2];
|
|
} else {
|
|
dwR += ((RGBUShortDef*)scanbuf)[dw].Red;
|
|
dwG += ((RGBUShortDef*)scanbuf)[dw].Green;
|
|
dwB += ((RGBUShortDef*)scanbuf)[dw].Blue;
|
|
}
|
|
}
|
|
dwR = dwR / dwDiv;
|
|
dwG = dwG / dwDiv;
|
|
dwB = dwB / dwDiv;
|
|
|
|
if(max_rgb.Red < dwR)
|
|
max_rgb.Red = dwR;
|
|
if(max_rgb.Green < dwG)
|
|
max_rgb.Green = dwG;
|
|
if(max_rgb.Blue < dwB)
|
|
max_rgb.Blue = dwB;
|
|
|
|
if(min_rgb.Red > dwR)
|
|
min_rgb.Red = dwR;
|
|
if(min_rgb.Green > dwG)
|
|
min_rgb.Green = dwG;
|
|
if(min_rgb.Blue > dwB)
|
|
min_rgb.Blue = dwB;
|
|
}
|
|
|
|
DBG(_DBG_INFO2, "MAX(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
|
|
max_rgb.Red, max_rgb.Red, max_rgb.Green,
|
|
max_rgb.Green, max_rgb.Blue, max_rgb.Blue );
|
|
DBG(_DBG_INFO2, "MIN(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
|
|
min_rgb.Red, min_rgb.Red, min_rgb.Green,
|
|
min_rgb.Green, min_rgb.Blue, min_rgb.Blue );
|
|
|
|
/* on CIS scanner, we use the min value, on CCD the max value
|
|
* for adjusting the gain
|
|
*/
|
|
tmp_rgb = max_rgb;
|
|
if( usb_IsCISDevice(dev))
|
|
tmp_rgb = min_rgb;
|
|
|
|
DBG(_DBG_INFO2, "CUR(R,G,B)= 0x%04x(%u), 0x%04x(%u), 0x%04x(%u)\n",
|
|
tmp_rgb.Red, tmp_rgb.Red, tmp_rgb.Green,
|
|
tmp_rgb.Green, tmp_rgb.Blue, tmp_rgb.Blue);
|
|
|
|
/* m_dwIdealGain = IDEAL_GainNormal;
|
|
*/ /* min(min(rgb.wRed, rgb.wGreen), rgb.wBlue) */
|
|
|
|
regs[0x3b] = usb_GetNewGain( dev, tmp_rgb.Red, 0 );
|
|
regs[0x3c] = usb_GetNewGain( dev, tmp_rgb.Green, 1 );
|
|
regs[0x3d] = usb_GetNewGain( dev, tmp_rgb.Blue, 2 );
|
|
|
|
if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
|
|
SANE_Bool adj = SANE_FALSE;
|
|
|
|
/* on CIS devices, we can control the lamp off settings */
|
|
if( usb_IsCISDevice(dev)) {
|
|
|
|
/* m_dwIdealGain = IDEAL_GainNormal;
|
|
*/
|
|
if( adjLampSetting( dev, CHANNEL_red, tmp_rgb.Red, m_dwIdealGain,
|
|
hw->red_lamp_on, &hw->red_lamp_off )) {
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
if( adjLampSetting( dev, CHANNEL_green, tmp_rgb.Green, m_dwIdealGain,
|
|
hw->green_lamp_on, &hw->green_lamp_off )) {
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
if( adjLampSetting( dev, CHANNEL_blue, tmp_rgb.Blue, m_dwIdealGain,
|
|
hw->blue_lamp_on, &hw->blue_lamp_off)){
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
/* on any adjustment, set the registers... */
|
|
if( adj ) {
|
|
usb_AdjustLamps( dev, SANE_TRUE );
|
|
|
|
if( i < _MAX_GAIN_LOOPS )
|
|
goto TOGAIN;
|
|
}
|
|
|
|
} else {
|
|
|
|
if((!regs[0x3b] ||
|
|
!regs[0x3c] || !regs[0x3d]) && dMCLK > min_mclk) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
adj = SANE_TRUE;
|
|
|
|
} else if(((regs[0x3b] == 63) || (regs[0x3c] == 63) ||
|
|
(regs[0x3d] == 63)) && (dMCLK < 10)) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
if( adj ) {
|
|
if( i < _MAX_GAIN_LOOPS )
|
|
goto TOGAIN;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
/* for MODEL KaoHsiung 1200 scanner multi-straight-line bug at
|
|
* 1200 dpi color mode
|
|
*/
|
|
if( hw->motorModel == MODEL_KaoHsiung &&
|
|
scaps->bCCD == kNEC3778 && dMCLK>= 5.5 && !regs[0x3c]){
|
|
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK - 1.5;
|
|
goto TOGAIN;
|
|
|
|
} else if( hw->motorModel == MODEL_HuaLien &&
|
|
scaps->bCCD == kNEC3799 && fRepeatITA ) {
|
|
|
|
if((!regs[0x3b] ||
|
|
!regs[0x3c] || !regs[0x3d]) && dMCLK > 3.0) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
goto TOGAIN;
|
|
|
|
} else if(((regs[0x3b] == 63) || (regs[0x3c] == 63) ||
|
|
(regs[0x3d] == 63)) && (dMCLK < 10)) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
goto TOGAIN;
|
|
}
|
|
bMaxITA = (u_char)floor((dMCLK + 1) / 2);
|
|
fRepeatITA = SANE_FALSE;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
u_short w_max = 0, w_min = 0xffff, w_tmp;
|
|
|
|
for( dw = start; dw < end; dw++ ) {
|
|
if( w_max < ((u_short*)scanbuf)[dw])
|
|
w_max = ((u_short*)scanbuf)[dw];
|
|
if( w_min > ((u_short*)scanbuf)[dw])
|
|
w_min = ((u_short*)scanbuf)[dw];
|
|
}
|
|
|
|
w_tmp = w_max;
|
|
if( usb_IsCISDevice(dev))
|
|
w_tmp = w_min;
|
|
|
|
regs[0x3b] =
|
|
regs[0x3c] =
|
|
regs[0x3d] = usb_GetNewGain(dev, w_tmp, 0);
|
|
|
|
DBG(_DBG_INFO2, "MAX(G)= 0x%04x(%u)\n", w_max, w_max );
|
|
DBG(_DBG_INFO2, "MIN(G)= 0x%04x(%u)\n", w_min, w_min );
|
|
DBG(_DBG_INFO2, "CUR(G)= 0x%04x(%u)\n", w_tmp, w_tmp );
|
|
|
|
/* m_dwIdealGain = IDEAL_GainNormal;
|
|
*/
|
|
if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
|
|
SANE_Bool adj = SANE_FALSE;
|
|
|
|
/* on CIS devices, we can control the lamp off settings */
|
|
if( usb_IsCISDevice(dev)) {
|
|
|
|
if( adjLampSetting( dev, CHANNEL_green, w_tmp, m_dwIdealGain,
|
|
hw->green_lamp_on, &hw->green_lamp_off )) {
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
/* on any adjustment, set the registers... */
|
|
if( adj ) {
|
|
usb_AdjustLamps( dev, SANE_TRUE );
|
|
|
|
if( i < _MAX_GAIN_LOOPS )
|
|
goto TOGAIN;
|
|
}
|
|
|
|
} else {
|
|
|
|
if( !regs[0x3b] && (dMCLK > min_mclk)) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK - 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
adj = SANE_TRUE;
|
|
|
|
} else if((regs[0x3b] == 63) && (dMCLK < 20)) {
|
|
|
|
scanning->sParam.dMCLK = dMCLK = dMCLK + 0.5;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
adj = SANE_TRUE;
|
|
}
|
|
|
|
if( adj ) {
|
|
if( i < _MAX_GAIN_LOOPS )
|
|
goto TOGAIN;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "REG[0x3b] = %u\n", regs[0x3b] );
|
|
DBG( _DBG_INFO2, "REG[0x3c] = %u\n", regs[0x3c] );
|
|
DBG( _DBG_INFO2, "REG[0x3d] = %u\n", regs[0x3d] );
|
|
|
|
DBG( _DBG_INFO2, "red_lamp_on = %u\n", hw->red_lamp_on );
|
|
DBG( _DBG_INFO2, "red_lamp_off = %u\n", hw->red_lamp_off );
|
|
DBG( _DBG_INFO2, "green_lamp_on = %u\n", hw->green_lamp_on );
|
|
DBG( _DBG_INFO2, "green_lamp_off = %u\n", hw->green_lamp_off );
|
|
DBG( _DBG_INFO2, "blue_lamp_on = %u\n", hw->blue_lamp_on );
|
|
DBG( _DBG_INFO2, "blue_lamp_off = %u\n", hw->blue_lamp_off );
|
|
|
|
DBG( _DBG_INFO, "usb_AdjustGain() done.\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** usb_GetNewOffset
|
|
* @param pdwSum -
|
|
* @param pdwDiff -
|
|
* @param pcOffset -
|
|
* @param pIdeal -
|
|
* @param channel -
|
|
* @param cAdjust -
|
|
*/
|
|
static void usb_GetNewOffset( Plustek_Device *dev, u_long *pdwSum, u_long *pdwDiff,
|
|
signed char *pcOffset, u_char *pIdeal,
|
|
u_long channel, signed char cAdjust )
|
|
{
|
|
/* IDEAL_Offset is currently set to 0x1000 = 4096 */
|
|
u_long dwIdealOffset = IDEAL_Offset;
|
|
|
|
if( pdwSum[channel] > dwIdealOffset ) {
|
|
|
|
/* Over ideal value */
|
|
pdwSum[channel] -= dwIdealOffset;
|
|
if( pdwSum[channel] < pdwDiff[channel] ) {
|
|
/* New offset is better than old one */
|
|
pdwDiff[channel] = pdwSum[channel];
|
|
pIdeal[channel] = dev->usbDev.a_bRegs[0x38 + channel];
|
|
}
|
|
pcOffset[channel] -= cAdjust;
|
|
|
|
} else {
|
|
|
|
/* Below than ideal value */
|
|
pdwSum[channel] = dwIdealOffset - pdwSum [channel];
|
|
if( pdwSum[channel] < pdwDiff[channel] ) {
|
|
/* New offset is better than old one */
|
|
pdwDiff[channel] = pdwSum[channel];
|
|
pIdeal[channel] = dev->usbDev.a_bRegs[0x38 + channel];
|
|
}
|
|
pcOffset[channel] += cAdjust;
|
|
}
|
|
|
|
if( pcOffset[channel] >= 0 )
|
|
dev->usbDev.a_bRegs[0x38 + channel] = pcOffset[channel];
|
|
else
|
|
dev->usbDev.a_bRegs[0x38 + channel] = (u_char)(32 - pcOffset[channel]);
|
|
}
|
|
|
|
/** usb_AdjustOffset
|
|
* function to perform the "coarse calibration step" part 2.
|
|
* We scan reference image pixels to determine the optimum coarse offset settings
|
|
* for R, G, B. (Analog gain and offset prior to ADC). These coefficients are
|
|
* applied at the line rate during normal scanning.
|
|
* On CIS based devices, we switch the light off, on CCD devices, we use the optical
|
|
* black pixels.
|
|
* Affects register 0x38, 0x39 and 0x3a
|
|
*/
|
|
static SANE_Bool usb_AdjustOffset( Plustek_Device *dev )
|
|
{
|
|
char tmp[40];
|
|
signed char cAdjust = 16;
|
|
signed char cOffset[3];
|
|
u_char bExpect[3];
|
|
int i;
|
|
u_long dw, dwPixels;
|
|
u_long dwDiff[3], dwSum[3];
|
|
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
u_long *scanbuf = dev->scanning.pScanBuffer;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
DBG( _DBG_INFO, "#########################\n" );
|
|
DBG( _DBG_INFO, "usb_AdjustOffset()\n" );
|
|
if((dev->adj.rofs != -1) &&
|
|
(dev->adj.gofs != -1) && (dev->adj.bofs != -1)) {
|
|
regs[0x38] = (dev->adj.rofs & 0x3f);
|
|
regs[0x39] = (dev->adj.gofs & 0x3f);
|
|
regs[0x3a] = (dev->adj.bofs & 0x3f);
|
|
DBG( _DBG_INFO, "- function skipped, using frontend values!\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
m_ScanParam.Size.dwLines = 1;
|
|
m_ScanParam.Size.dwPixels = 2550;
|
|
|
|
if( usb_IsCISDevice(dev))
|
|
dwPixels = m_ScanParam.Size.dwPixels;
|
|
else
|
|
dwPixels = (u_long)(hw->bOpticBlackEnd - hw->bOpticBlackStart );
|
|
|
|
m_ScanParam.Size.dwPixels = 2550;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels * 2 *
|
|
m_ScanParam.bChannels;
|
|
if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
|
|
m_ScanParam.Origin.x = (u_short)((u_long)hw->bOpticBlackStart * 300UL /
|
|
dev->usbDev.Caps.OpticDpi.x);
|
|
m_ScanParam.bCalibration = PARAM_Offset;
|
|
m_ScanParam.dMCLK = dMCLK;
|
|
|
|
dwDiff[0] = dwDiff[1] = dwDiff[2] = 0xffff;
|
|
cOffset[0] = cOffset[1] = cOffset[2] = 0;
|
|
bExpect[0] = bExpect[1] = bExpect[2] = 0;
|
|
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = 0;
|
|
|
|
if( usb_IsCISDevice(dev)) {
|
|
/*
|
|
* if we have dark shading strip, there's no need to switch
|
|
* the lamp off
|
|
*/
|
|
if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
|
|
|
|
usb_ModuleToHome( dev, SANE_TRUE );
|
|
usb_ModuleMove ( dev, MOVE_Forward,
|
|
(u_long)dev->usbDev.pSource->DarkShadOrgY );
|
|
|
|
regs[0x45] &= ~0x10;
|
|
|
|
} else {
|
|
|
|
/* switch lamp off to read dark data... */
|
|
regs[0x29] = 0;
|
|
usb_switchLamp( dev, SANE_FALSE );
|
|
}
|
|
}
|
|
|
|
if( 0 == dwPixels ) {
|
|
DBG( _DBG_ERROR, "OpticBlackEnd = OpticBlackStart!!!\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
if( !usb_SetScanParameters( dev, &m_ScanParam )) {
|
|
DBG( _DBG_ERROR, "usb_AdjustOffset() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
i = 0;
|
|
|
|
DBG( _DBG_INFO2, "S.dwPixels = %lu\n", m_ScanParam.Size.dwPixels );
|
|
DBG( _DBG_INFO2, "dwPixels = %lu\n", dwPixels );
|
|
DBG( _DBG_INFO2, "dwPhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
|
|
DBG( _DBG_INFO2, "dwPhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
|
|
|
|
while( cAdjust ) {
|
|
|
|
/*
|
|
* read data (a white calibration strip - hopefully ;-)
|
|
*/
|
|
if((!usb_ScanBegin(dev, SANE_FALSE)) ||
|
|
(!usb_ScanReadImage(dev,scanbuf,m_ScanParam.Size.dwPhyBytes)) ||
|
|
!usb_ScanEnd( dev )) {
|
|
DBG( _DBG_ERROR, "usb_AdjustOffset() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
sprintf( tmp, "coarse-off-%u.raw", i++ );
|
|
|
|
#ifdef SWAP_COARSE
|
|
if(usb_HostSwap())
|
|
usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
|
|
#endif
|
|
dumpPicInit(&m_ScanParam, tmp);
|
|
dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
dwSum[0] = dwSum[1] = dwSum[2] = 0;
|
|
|
|
for (dw = 0; dw < dwPixels; dw++) {
|
|
#ifndef SWAP_COARSE
|
|
dwSum[0] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[0]);
|
|
dwSum[1] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[1]);
|
|
dwSum[2] += (u_long)_HILO2WORD(((ColorWordDef*)scanbuf)[dw].HiLo[2]);
|
|
#else
|
|
dwSum[0] += ((RGBUShortDef*)scanbuf)[dw].Red;
|
|
dwSum[1] += ((RGBUShortDef*)scanbuf)[dw].Green;
|
|
dwSum[2] += ((RGBUShortDef*)scanbuf)[dw].Blue;
|
|
#endif
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "RedSum = %lu, ave = %lu\n",
|
|
dwSum[0], dwSum[0] /dwPixels );
|
|
DBG( _DBG_INFO2, "GreenSum = %lu, ave = %lu\n",
|
|
dwSum[1], dwSum[1] /dwPixels );
|
|
DBG( _DBG_INFO2, "BlueSum = %lu, ave = %lu\n",
|
|
dwSum[2], dwSum[2] /dwPixels );
|
|
|
|
/* do averaging for each channel */
|
|
dwSum[0] /= dwPixels;
|
|
dwSum[1] /= dwPixels;
|
|
dwSum[2] /= dwPixels;
|
|
|
|
usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 0, cAdjust );
|
|
usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 1, cAdjust );
|
|
usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 2, cAdjust );
|
|
|
|
DBG( _DBG_INFO2, "RedExpect = %u\n", bExpect[0] );
|
|
DBG( _DBG_INFO2, "GreenExpect = %u\n", bExpect[1] );
|
|
DBG( _DBG_INFO2, "BlueExpect = %u\n", bExpect[2] );
|
|
|
|
} else {
|
|
dwSum[0] = 0;
|
|
|
|
for( dw = 0; dw < dwPixels; dw++ ) {
|
|
#ifndef SWAP_COARSE
|
|
dwSum[0] += (u_long)_HILO2WORD(((HiLoDef*)scanbuf)[dw]);
|
|
#else
|
|
dwSum[0] += ((u_short*)scanbuf)[dw];
|
|
#endif
|
|
}
|
|
dwSum [0] /= dwPixels;
|
|
usb_GetNewOffset( dev, dwSum, dwDiff, cOffset, bExpect, 0, cAdjust );
|
|
regs[0x3a] = regs[0x39] = regs[0x38];
|
|
|
|
DBG(_DBG_INFO2,"Sum = %lu, ave = %lu\n",dwSum[0],dwSum[0]/dwPixels);
|
|
DBG(_DBG_INFO2,"Expect = %u\n", bExpect[0]);
|
|
}
|
|
|
|
_UIO(sanei_lm983x_write(dev->fd, 0x38, ®s[0x38], 3, SANE_TRUE));
|
|
cAdjust >>= 1;
|
|
}
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
regs[0x38] = bExpect[0];
|
|
regs[0x39] = bExpect[1];
|
|
regs[0x3a] = bExpect[2];
|
|
} else {
|
|
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = bExpect[0];
|
|
}
|
|
|
|
DBG( _DBG_INFO2, "REG[0x38] = %u\n", regs[0x38] );
|
|
DBG( _DBG_INFO2, "REG[0x39] = %u\n", regs[0x39] );
|
|
DBG( _DBG_INFO2, "REG[0x3a] = %u\n", regs[0x3a] );
|
|
DBG( _DBG_INFO, "usb_AdjustOffset() done.\n" );
|
|
|
|
/* switch it on again on CIS based scanners */
|
|
if( usb_IsCISDevice(dev)) {
|
|
|
|
if( dev->usbDev.pSource->DarkShadOrgY < 0 ) {
|
|
regs[0x29] = hw->bReg_0x29;
|
|
usb_switchLamp( dev, SANE_TRUE );
|
|
usbio_WriteReg( dev->fd, 0x29, regs[0x29]);
|
|
}
|
|
}
|
|
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** this function tries to find out some suitable values for the dark
|
|
* fine calibration. If the device owns a black calibration strip
|
|
* the data is simply copied. If not, then the white strip is read
|
|
* with the lamp switched off...
|
|
*/
|
|
static void usb_GetDarkShading( Plustek_Device *dev, u_short *pwDest,
|
|
HiLoDef *pSrce, u_long dwPixels,
|
|
u_long dwAdd, int iOffset )
|
|
{
|
|
u_long dw;
|
|
u_long dwSum[2];
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
|
|
if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
|
|
|
|
u_short w;
|
|
int wtmp;
|
|
|
|
/* here we use the source buffer + a static offset */
|
|
for (dw = 0; dw < dwPixels; dw++, pSrce += dwAdd)
|
|
{
|
|
#ifndef SWAP_FINE
|
|
wtmp = ((int)_PHILO2WORD(pSrce) + iOffset);
|
|
#else
|
|
wtmp = ((int)_PLOHI2WORD(pSrce) + iOffset);
|
|
#endif
|
|
if( wtmp < 0 )
|
|
wtmp = 0;
|
|
|
|
if( wtmp > 0xffff )
|
|
wtmp = 0xffff;
|
|
|
|
w = (u_short)wtmp;
|
|
|
|
#ifndef SWAP_FINE
|
|
pwDest[dw] = _LOBYTE(w) * 256 + _HIBYTE(w);
|
|
#else
|
|
pwDest[dw] = w;
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dwSum[0] = dwSum[1] = 0;
|
|
if( hw->bSensorConfiguration & 0x04 ) {
|
|
|
|
/* Even/Odd CCD */
|
|
for( dw = 0; dw < dwPixels; dw++, pSrce += dwAdd ) {
|
|
#ifndef SWAP_FINE
|
|
dwSum[dw & 1] += (u_long)_PHILO2WORD(pSrce);
|
|
#else
|
|
dwSum[dw & 1] += (u_long)_PLOHI2WORD(pSrce);
|
|
#endif
|
|
}
|
|
dwSum[0] /= ((dwPixels + 1UL) >> 1);
|
|
dwSum[1] /= (dwPixels >> 1);
|
|
|
|
if( /*Registry.GetEvenOdd() == 1 ||*/ scaps->bPCB == 2)
|
|
{
|
|
dwSum[0] = dwSum[1] = (dwSum[0] + dwSum[1]) / 2;
|
|
}
|
|
|
|
dwSum[0] = (int)dwSum[0] + iOffset;
|
|
dwSum[1] = (int)dwSum[1] + iOffset;
|
|
|
|
if((int)dwSum[0] < 0)
|
|
dwSum[0] = 0;
|
|
|
|
if((int)dwSum[1] < 0)
|
|
dwSum[1] = 0;
|
|
#ifndef SWAP_FINE
|
|
dwSum[0] = (u_long)_LOBYTE(_LOWORD(dwSum[0])) * 256UL +
|
|
_HIBYTE(_LOWORD(dwSum[0]));
|
|
dwSum[1] = (u_long)_LOBYTE(_LOWORD(dwSum[1])) * 256UL +
|
|
_HIBYTE(_LOWORD(dwSum[1]));
|
|
#else
|
|
dwSum[0] = (u_long)_LOWORD(dwSum[0]);
|
|
dwSum[1] = (u_long)_LOWORD(dwSum[1]);
|
|
#endif
|
|
|
|
for( dw = 0; dw < dwPixels; dw++ )
|
|
pwDest[dw] = (u_short)dwSum[dw & 1];
|
|
} else {
|
|
|
|
/* Standard CCD */
|
|
|
|
/* do some averaging on the line */
|
|
for( dw = 0; dw < dwPixels; dw++, pSrce += dwAdd ) {
|
|
#ifndef SWAP_FINE
|
|
dwSum[0] += (u_long)_PHILO2WORD(pSrce);
|
|
#else
|
|
dwSum[0] += (u_long)_PLOHI2WORD(pSrce);
|
|
#endif
|
|
}
|
|
|
|
dwSum[0] /= dwPixels;
|
|
|
|
/* add our offset... */
|
|
dwSum[0] = (int)dwSum[0] + iOffset;
|
|
if((int)dwSum[0] < 0)
|
|
dwSum[0] = 0;
|
|
#ifndef SWAP_FINE
|
|
dwSum[0] = (u_long)_LOBYTE(_LOWORD(dwSum[0])) * 256UL +
|
|
_HIBYTE(_LOWORD(dwSum[0]));
|
|
#else
|
|
dwSum[0] = (u_long)_LOWORD(dwSum[0]);
|
|
#endif
|
|
|
|
/* fill the shading data */
|
|
for( dw = 0; dw < dwPixels; dw++ )
|
|
pwDest[dw] = (u_short)dwSum[0];
|
|
}
|
|
}
|
|
#ifdef SWAP_FINE
|
|
if(usb_HostSwap())
|
|
usb_Swap( pwDest, dwPixels *2 );
|
|
#endif
|
|
}
|
|
|
|
/** usb_AdjustDarkShading
|
|
* fine calibration part 1 - read the black calibration area and write
|
|
* the black line data to the offset coefficient data in Merlins' DRAM
|
|
* If there's no black line available, we can use the min pixel value
|
|
* from coarse calibration...
|
|
*/
|
|
static SANE_Bool usb_AdjustDarkShading( Plustek_Device *dev )
|
|
{
|
|
char tmp[40];
|
|
ScanDef *scanning = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_long *scanbuf = scanning->pScanBuffer;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
if( scaps->workaroundFlag & _WAF_SKIP_FINE )
|
|
return SANE_TRUE;
|
|
|
|
DBG( _DBG_INFO, "#########################\n" );
|
|
DBG( _DBG_INFO, "usb_AdjustDarkShading()\n" );
|
|
DBG( _DBG_INFO2, "* MCLK = %f (scanparam-MCLK=%f)\n",
|
|
dMCLK, scanning->sParam.dMCLK );
|
|
|
|
usb_PrepareFineCal( dev, &m_ScanParam, 0 );
|
|
|
|
m_ScanParam.Size.dwLines = 1; /* for gain */
|
|
m_ScanParam.bCalibration = PARAM_DarkShading;
|
|
|
|
if( _LM9831 == hw->chip ) {
|
|
|
|
m_ScanParam.UserDpi.x = usb_SetAsicDpiX( dev, m_ScanParam.UserDpi.x);
|
|
if( m_ScanParam.UserDpi.x < 100)
|
|
m_ScanParam.UserDpi.x = 150;
|
|
|
|
/* Now DPI X is physical */
|
|
m_ScanParam.Origin.x = m_ScanParam.Origin.x %
|
|
(u_short)m_dHDPIDivider;
|
|
m_ScanParam.Size.dwPixels = (u_long)scaps->Normal.Size.x *
|
|
m_ScanParam.UserDpi.x / 300UL;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
|
|
2UL * m_ScanParam.bChannels;
|
|
m_dwPixels = scanning->sParam.Size.dwPixels *
|
|
m_ScanParam.UserDpi.x / scanning->sParam.UserDpi.x;
|
|
|
|
if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
}
|
|
|
|
/* if we have dark shading strip, there's no need to switch
|
|
* the lamp off
|
|
*/
|
|
if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
|
|
|
|
usb_ModuleToHome( dev, SANE_TRUE );
|
|
usb_ModuleMove ( dev, MOVE_Forward,
|
|
(u_long)dev->usbDev.pSource->DarkShadOrgY );
|
|
} else {
|
|
|
|
/* switch lamp off to read dark data... */
|
|
regs[0x29] = 0;
|
|
usb_switchLamp( dev, SANE_FALSE );
|
|
}
|
|
|
|
usb_SetScanParameters( dev, &m_ScanParam );
|
|
|
|
if((!usb_ScanBegin(dev, SANE_FALSE)) ||
|
|
(!usb_ScanReadImage(dev,scanbuf, m_ScanParam.Size.dwPhyBytes)) ||
|
|
(!usb_ScanEnd( dev ))) {
|
|
|
|
/* on error, reset the lamp settings*/
|
|
regs[0x29] = hw->bReg_0x29;
|
|
usb_switchLamp( dev, SANE_TRUE );
|
|
usbio_WriteReg( dev->fd, 0x29, regs[0x29] );
|
|
|
|
DBG( _DBG_ERROR, "usb_AdjustDarkShading() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* set illumination mode and switch lamp on again
|
|
*/
|
|
regs[0x29] = hw->bReg_0x29;
|
|
usb_switchLamp( dev, SANE_TRUE );
|
|
|
|
if( !usbio_WriteReg( dev->fd, 0x29, regs[0x29])) {
|
|
DBG( _DBG_ERROR, "usb_AdjustDarkShading() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
#ifdef SWAP_FINE
|
|
if(usb_HostSwap())
|
|
usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
|
|
#endif
|
|
|
|
sprintf( tmp, "fine-black.raw" );
|
|
|
|
dumpPicInit(&m_ScanParam, tmp);
|
|
dumpPic(tmp, (u_char*)scanbuf, m_ScanParam.Size.dwPhyBytes, 0);
|
|
|
|
usleep(500 * 1000); /* Warm up lamp again */
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
if( usb_IsCISDevice(dev)) {
|
|
|
|
usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
|
|
m_ScanParam.Size.dwPhyPixels, 1,
|
|
scanning->sParam.swOffset[0]);
|
|
|
|
usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
|
|
(HiLoDef*)scanbuf + m_ScanParam.Size.dwPhyPixels,
|
|
m_ScanParam.Size.dwPhyPixels, 1, scanning->sParam.swOffset[1]);
|
|
|
|
usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
|
|
(HiLoDef*)scanbuf + m_ScanParam.Size.dwPhyPixels * 2,
|
|
m_ScanParam.Size.dwPhyPixels, 1, scanning->sParam.swOffset[2]);
|
|
|
|
} else {
|
|
|
|
usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
|
|
m_ScanParam.Size.dwPhyPixels, 3,
|
|
scanning->sParam.swOffset[0]);
|
|
usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
|
|
(HiLoDef*)scanbuf + 1, m_ScanParam.Size.dwPhyPixels,
|
|
3, scanning->sParam.swOffset[1]);
|
|
usb_GetDarkShading( dev, a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
|
|
(HiLoDef*)scanbuf + 2, m_ScanParam.Size.dwPhyPixels,
|
|
3, scanning->sParam.swOffset[2]);
|
|
}
|
|
} else {
|
|
|
|
usb_GetDarkShading( dev, a_wDarkShading, (HiLoDef*)scanbuf,
|
|
m_ScanParam.Size.dwPhyPixels, 1,
|
|
scanning->sParam.swOffset[1]);
|
|
|
|
memcpy( a_wDarkShading + m_ScanParam.Size.dwPhyPixels,
|
|
a_wDarkShading, m_ScanParam.Size.dwPhyPixels * 2 );
|
|
memcpy( a_wDarkShading + m_ScanParam.Size.dwPhyPixels * 2,
|
|
a_wDarkShading, m_ScanParam.Size.dwPhyPixels * 2 );
|
|
}
|
|
|
|
regs[0x45] |= 0x10;
|
|
|
|
usb_line_statistics( "Dark", a_wDarkShading, m_ScanParam.Size.dwPhyPixels,
|
|
scanning->sParam.bDataType == SCANDATATYPE_Color?1:0);
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** function to remove the brightest values out of each row
|
|
* @param dev - the almighty device structure.
|
|
* @param sp - is a pointer to the scanparam structure used for
|
|
* scanning the shading lines.
|
|
* @param hilight - defines the number of values to skip.
|
|
* @param shading_lines - defines the overall number of shading lines.
|
|
*/
|
|
static void usb_CalSortHighlight( Plustek_Device *dev, ScanParam *sp,
|
|
u_long hilight, u_long shading_lines )
|
|
{
|
|
ScanDef *scan = &dev->scanning;
|
|
u_short r, g, b;
|
|
u_long lines, w, x;
|
|
RGBUShortDef *pw, *rgb;
|
|
|
|
if( hilight == 0 )
|
|
return;
|
|
|
|
rgb = (RGBUShortDef*)scan->pScanBuffer;
|
|
|
|
/* do it for all relevant lines */
|
|
for( lines = hilight, rgb = rgb + sp->Size.dwPhyPixels * lines;
|
|
lines < shading_lines; lines++, rgb += sp->Size.dwPhyPixels ) {
|
|
|
|
/* scan the complete line */
|
|
for( x = 0; x < sp->Size.dwPhyPixels; x++ ) {
|
|
|
|
/* reference is the first scanline */
|
|
pw = (RGBUShortDef*)scan->pScanBuffer;
|
|
r = rgb[x].Red;
|
|
g = rgb[x].Green;
|
|
b = rgb[x].Blue;
|
|
|
|
for( w = 0; w < hilight; w++, pw += sp->Size.dwPhyPixels ) {
|
|
|
|
if( r > pw[x].Red )
|
|
_SWAP( r, pw[x].Red );
|
|
|
|
if( g > pw[x].Green )
|
|
_SWAP( g, pw[x].Green );
|
|
|
|
if( b > pw[x].Blue )
|
|
_SWAP( b, pw[x].Blue );
|
|
}
|
|
rgb[x].Red = r;
|
|
rgb[x].Green = g;
|
|
rgb[x].Blue = b;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** function to remove the brightest values out of each row
|
|
* @param dev - the almighty device structure.
|
|
* @param sp - is a pointer to the scanparam structure used for
|
|
* scanning the shading lines.
|
|
* @param hilight - defines the number of values to skip.
|
|
* @param shading_lines - defines the overall number of shading lines.
|
|
*/
|
|
static void usb_CalSortShadow( Plustek_Device *dev, ScanParam *sp,
|
|
u_long hilight, u_long shadow, u_long shading_lines )
|
|
{
|
|
ScanDef *scan = &dev->scanning;
|
|
u_short r, g, b;
|
|
u_long lines, w, x;
|
|
RGBUShortDef *pw, *rgb;
|
|
|
|
if( shadow == 0 )
|
|
return;
|
|
|
|
rgb = (RGBUShortDef*)scan->pScanBuffer;
|
|
|
|
for( lines = hilight, rgb = rgb + sp->Size.dwPhyPixels * lines;
|
|
lines < shading_lines-shadow; lines++, rgb += sp->Size.dwPhyPixels ) {
|
|
|
|
for (x = 0; x < sp->Size.dwPhyPixels; x++) {
|
|
|
|
pw = ((RGBUShortDef*)scan->pScanBuffer) + (shading_lines - shadow) *
|
|
sp->Size.dwPhyPixels;
|
|
r = rgb[x].Red;
|
|
g = rgb[x].Green;
|
|
b = rgb[x].Blue;
|
|
|
|
for( w = 0; w < shadow; w++, pw += sp->Size.dwPhyPixels ) {
|
|
if( r < pw[x].Red )
|
|
_SWAP( r, pw[x].Red );
|
|
if( g < pw[x].Green )
|
|
_SWAP( g, pw [x].Green );
|
|
if( b > pw[x].Blue )
|
|
_SWAP( b, pw[x].Blue );
|
|
}
|
|
rgb[x].Red = r;
|
|
rgb[x].Green = g;
|
|
rgb[x].Blue = b;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void usb_procHighlightAndShadow( Plustek_Device *dev, ScanParam *sp,
|
|
u_long hilight, u_long shadow, u_long shading_lines )
|
|
{
|
|
ScanDef *scan = &dev->scanning;
|
|
u_long lines, x;
|
|
u_long *pr, *pg, *pb;
|
|
RGBUShortDef *rgb;
|
|
|
|
pr = (u_long*)((u_char*)scan->pScanBuffer + sp->Size.dwPhyBytes * shading_lines);
|
|
pg = pr + sp->Size.dwPhyPixels;
|
|
pb = pg + sp->Size.dwPhyPixels;
|
|
|
|
memset(pr, 0, sp->Size.dwPhyPixels * sizeof(*pr) * 3UL);
|
|
|
|
/* Sort hilight */
|
|
usb_CalSortHighlight(dev, sp, hilight, shading_lines);
|
|
|
|
/* Sort shadow */
|
|
usb_CalSortShadow(dev, sp, hilight, shadow, shading_lines);
|
|
|
|
rgb = (RGBUShortDef*)scan->pScanBuffer;
|
|
rgb += sp->Size.dwPhyPixels * hilight;
|
|
|
|
/* Sum */
|
|
for( lines = hilight; lines < (shading_lines-shadow); lines++ ) {
|
|
|
|
for( x = 0; x < sp->Size.dwPhyPixels; x++ ) {
|
|
pr[x] += rgb[x].Red;
|
|
pg[x] += rgb[x].Green;
|
|
pb[x] += rgb[x].Blue;
|
|
}
|
|
|
|
rgb += sp->Size.dwPhyPixels;
|
|
}
|
|
}
|
|
|
|
/** usb_AdjustWhiteShading
|
|
* fine calibration part 2 - read the white calibration area and calculate
|
|
* the gain coefficient for each pixel
|
|
*/
|
|
static SANE_Bool usb_AdjustWhiteShading( Plustek_Device *dev )
|
|
{
|
|
char tmp[40];
|
|
ScanDef *scan = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_long *pBuf = scan->pScanBuffer;
|
|
u_long dw, dwLines, dwRead;
|
|
u_long shading_lines;
|
|
MonoWordDef *pValue;
|
|
u_short *m_pAvMono;
|
|
u_long *pdw, *m_pSum;
|
|
u_short hilight, shadow;
|
|
int i;
|
|
SANE_Bool swap = usb_HostSwap();
|
|
|
|
if( scaps->workaroundFlag & _WAF_SKIP_FINE )
|
|
return SANE_TRUE;
|
|
|
|
DBG( _DBG_INFO, "#########################\n" );
|
|
DBG( _DBG_INFO, "usb_AdjustWhiteShading()\n" );
|
|
|
|
m_pAvMono = (u_short*)scan->pScanBuffer;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
usb_PrepareFineCal( dev, &m_ScanParam, 0 );
|
|
|
|
if( m_ScanParam.PhyDpi.x > 75)
|
|
shading_lines = 64;
|
|
else
|
|
shading_lines = 32;
|
|
|
|
/* NOTE: hilight + shadow < shading_lines */
|
|
hilight = 4;
|
|
shadow = 4;
|
|
|
|
m_ScanParam.bCalibration = PARAM_WhiteShading;
|
|
m_ScanParam.Size.dwLines = shading_lines;
|
|
|
|
if( _LM9831 == hw->chip ) {
|
|
|
|
m_ScanParam.UserDpi.x = usb_SetAsicDpiX( dev, m_ScanParam.UserDpi.x);
|
|
if( m_ScanParam.UserDpi.x < 100 )
|
|
m_ScanParam.UserDpi.x = 150;
|
|
|
|
/* Now DPI X is physical */
|
|
m_ScanParam.Origin.x = m_ScanParam.Origin.x % (u_short)m_dHDPIDivider;
|
|
m_ScanParam.Size.dwPixels = (u_long)scaps->Normal.Size.x * m_ScanParam.UserDpi.x / 300UL;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels * 2UL * m_ScanParam.bChannels;
|
|
if( usb_IsCISDevice(dev) && m_ScanParam.bDataType == SCANDATATYPE_Color )
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
|
|
m_dwPixels = scan->sParam.Size.dwPixels * m_ScanParam.UserDpi.x /
|
|
scan->sParam.UserDpi.x;
|
|
|
|
dw = (u_long)(hw->wDRAMSize - 196 /*192 KiB*/) * 1024UL;
|
|
for( dwLines = dw / m_ScanParam.Size.dwBytes;
|
|
dwLines < m_ScanParam.Size.dwLines; m_ScanParam.Size.dwLines>>=1);
|
|
}
|
|
|
|
/* goto the correct position again... */
|
|
if( dev->usbDev.pSource->DarkShadOrgY >= 0 ) {
|
|
|
|
usb_ModuleToHome( dev, SANE_TRUE );
|
|
usb_ModuleMove ( dev, MOVE_Forward,
|
|
(u_long)dev->usbDev.pSource->ShadingOriginY );
|
|
}
|
|
|
|
sprintf( tmp, "fine-white.raw" );
|
|
DBG( _DBG_INFO2, "FINE WHITE Calibration Strip: %s\n", tmp );
|
|
DBG( _DBG_INFO2, "Shad.-Lines = %lu\n", shading_lines );
|
|
DBG( _DBG_INFO2, "Lines = %lu\n", m_ScanParam.Size.dwLines );
|
|
DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
|
|
DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
|
|
DBG( _DBG_INFO2, "Origin.X = %u\n", m_ScanParam.Origin.x );
|
|
|
|
for( dw = shading_lines, dwRead = 0; dw; dw -= m_ScanParam.Size.dwLines ) {
|
|
|
|
if( usb_SetScanParameters( dev, &m_ScanParam ) &&
|
|
usb_ScanBegin( dev, SANE_FALSE )) {
|
|
|
|
DBG(_DBG_INFO2,"TotalBytes = %lu\n",m_ScanParam.Size.dwTotalBytes);
|
|
if( _LM9831 == hw->chip ) {
|
|
/* Delay for white shading hold for 9831-1200 scanner */
|
|
usleep(900000);
|
|
}
|
|
|
|
if( usb_ScanReadImage( dev, (u_char*)pBuf + dwRead,
|
|
m_ScanParam.Size.dwTotalBytes)) {
|
|
|
|
if( _LM9831 == hw->chip ) {
|
|
/* Delay for white shading hold for 9831-1200 scanner */
|
|
usleep(10000);
|
|
}
|
|
|
|
if( 0 == dwRead ) {
|
|
dumpPicInit(&m_ScanParam, tmp);
|
|
}
|
|
|
|
dumpPic(tmp, (u_char*)pBuf + dwRead, m_ScanParam.Size.dwTotalBytes, 0);
|
|
|
|
if( usb_ScanEnd( dev )) {
|
|
dwRead += m_ScanParam.Size.dwTotalBytes;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG( _DBG_ERROR, "usb_AdjustWhiteShading() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
m_pSum = (u_long*)((u_char*)pBuf + m_ScanParam.Size.dwPhyBytes * shading_lines);
|
|
|
|
/*
|
|
* do some reordering on CIS based devices:
|
|
* from RRRRRRR.... GGGGGGGG.... BBBBBBBBB, create RGB RGB RGB ...
|
|
* to use the following code, originally written for CCD devices...
|
|
*/
|
|
if( usb_IsCISDevice(dev)) {
|
|
|
|
u_short *dest, *src;
|
|
u_long dww;
|
|
|
|
src = (u_short*)pBuf;
|
|
|
|
DBG( _DBG_INFO2, "PhyBytes = %lu\n", m_ScanParam.Size.dwPhyBytes );
|
|
DBG( _DBG_INFO2, "PhyPixels = %lu\n", m_ScanParam.Size.dwPhyPixels );
|
|
DBG( _DBG_INFO2, "Pixels = %lu\n", m_ScanParam.Size.dwPixels );
|
|
DBG( _DBG_INFO2, "Bytes = %lu\n", m_ScanParam.Size.dwBytes );
|
|
DBG( _DBG_INFO2, "Channels = %u\n", m_ScanParam.bChannels );
|
|
|
|
for( dwLines = shading_lines; dwLines; dwLines-- ) {
|
|
|
|
dest = a_wWhiteShading;
|
|
|
|
for( dw=dww=0; dw < m_ScanParam.Size.dwPhyPixels; dw++, dww+=3 ) {
|
|
|
|
dest[dww] = src[dw];
|
|
dest[dww + 1] = src[m_ScanParam.Size.dwPhyPixels + dw];
|
|
dest[dww + 2] = src[m_ScanParam.Size.dwPhyPixels * 2 + dw];
|
|
}
|
|
|
|
/* copy line back ... */
|
|
memcpy( src, dest, m_ScanParam.Size.dwPhyPixels * 3 * 2 );
|
|
src = &src[m_ScanParam.Size.dwPhyPixels * 3];
|
|
}
|
|
|
|
m_ScanParam.bChannels = 3;
|
|
}
|
|
|
|
if( _LM9831 == hw->chip ) {
|
|
|
|
u_short *pwDest = (u_short*)pBuf;
|
|
HiLoDef *pwSrce = (HiLoDef*)pBuf;
|
|
|
|
pwSrce += ((u_long)(scan->sParam.Origin.x-m_ScanParam.Origin.x) /
|
|
(u_short)m_dHDPIDivider) *
|
|
(scaps->OpticDpi.x / 300UL) * m_ScanParam.bChannels;
|
|
|
|
for( dwLines = shading_lines; dwLines; dwLines--) {
|
|
|
|
#ifdef SWAP_FINE
|
|
if(usb_HostSwap()) {
|
|
#endif
|
|
for( dw = 0; dw < m_dwPixels * m_ScanParam.bChannels; dw++ )
|
|
pwDest[dw] = _HILO2WORD(pwSrce[dw]);
|
|
#ifdef SWAP_FINE
|
|
} else {
|
|
for( dw = 0; dw < m_dwPixels * m_ScanParam.bChannels; dw++ )
|
|
pwDest[dw] = _LOHI2WORD(pwSrce[dw]);
|
|
}
|
|
#endif
|
|
pwDest += (u_long)m_dwPixels * m_ScanParam.bChannels;
|
|
pwSrce = (HiLoDef*)((u_char*)pwSrce + m_ScanParam.Size.dwPhyBytes);
|
|
}
|
|
|
|
_SWAP(m_ScanParam.Size.dwPhyPixels, m_dwPixels);
|
|
} else {
|
|
/* Discard the status word and conv. the hi-lo order to intel format */
|
|
u_short *pwDest = (u_short*)pBuf;
|
|
HiLoDef *pwSrce = (HiLoDef*)pBuf;
|
|
|
|
for( dwLines = shading_lines; dwLines; dwLines-- ) {
|
|
|
|
#ifdef SWAP_FINE
|
|
if(usb_HostSwap()) {
|
|
#endif
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels *
|
|
m_ScanParam.bChannels; dw++) {
|
|
pwDest[dw] = _HILO2WORD(pwSrce[dw]);
|
|
}
|
|
#ifdef SWAP_FINE
|
|
} else {
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels *
|
|
m_ScanParam.bChannels; dw++) {
|
|
pwDest[dw] = _LOHI2WORD(pwSrce[dw]);
|
|
}
|
|
}
|
|
#endif
|
|
pwDest += m_ScanParam.Size.dwPhyPixels * m_ScanParam.bChannels;
|
|
pwSrce = (HiLoDef*)((u_char*)pwSrce + m_ScanParam.Size.dwPhyBytes);
|
|
}
|
|
}
|
|
|
|
if( scan->sParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
usb_procHighlightAndShadow(dev, &m_ScanParam, hilight, shadow, shading_lines);
|
|
|
|
pValue = (MonoWordDef*)a_wWhiteShading;
|
|
pdw = (u_long*)m_pSum;
|
|
|
|
/* Software gain */
|
|
if( scan->sParam.bSource != SOURCE_Negative ) {
|
|
|
|
for( i = 0; i < 3; i++ ) {
|
|
|
|
for(dw=m_ScanParam.Size.dwPhyPixels; dw; dw--,pValue++,pdw++) {
|
|
|
|
*pdw = *pdw * 1000 / ((shading_lines - hilight - shadow) *
|
|
scan->sParam.swGain[i]);
|
|
if(*pdw > 65535U)
|
|
pValue->Mono = 65535U;
|
|
else
|
|
pValue->Mono = (u_short)*pdw;
|
|
|
|
if (pValue->Mono > 16384U)
|
|
pValue->Mono = (u_short)(GAIN_Target * 16384U / pValue->Mono);
|
|
else
|
|
pValue->Mono = GAIN_Target;
|
|
|
|
#ifdef SWAP_FINE
|
|
if( swap )
|
|
#endif
|
|
_SWAP(pValue->HiLo.bHi, pValue->HiLo.bLo);
|
|
}
|
|
}
|
|
} else {
|
|
for( dw = m_ScanParam.Size.dwPhyPixels*3; dw; dw--,pValue++,pdw++)
|
|
pValue->Mono=(u_short)(*pdw/(shading_lines-hilight-shadow));
|
|
|
|
/* swapping will be done later in usb_ResizeWhiteShading() */
|
|
}
|
|
} else {
|
|
|
|
/* gray mode */
|
|
u_short *pwAv, *pw;
|
|
u_short w, wV;
|
|
|
|
memset( m_pSum, 0, m_ScanParam.Size.dwPhyPixels << 2 );
|
|
if( hilight ) {
|
|
for( dwLines = hilight,
|
|
pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
|
|
dwLines < shading_lines;
|
|
dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels) {
|
|
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
|
|
|
|
pw = m_pAvMono;
|
|
wV = pwAv [dw];
|
|
for( w = 0; w < hilight; w++,
|
|
pw += m_ScanParam.Size.dwPhyPixels ) {
|
|
if( wV > pw[dw] )
|
|
_SWAP( wV, pw[dw] );
|
|
}
|
|
pwAv[dw] = wV;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Sort shadow */
|
|
if (shadow) {
|
|
for (dwLines = hilight, pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
|
|
dwLines < (shading_lines - shadow); dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels)
|
|
for (dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++)
|
|
{
|
|
pw = m_pAvMono + (shading_lines - shadow) * m_ScanParam.Size.dwPhyPixels;
|
|
wV = pwAv [dw];
|
|
for (w = 0; w < shadow; w++, pw += m_ScanParam.Size.dwPhyPixels)
|
|
if (wV < pw [dw])
|
|
_SWAP (wV, pw[dw]);
|
|
pwAv [dw] = wV;
|
|
}
|
|
}
|
|
|
|
/* Sum */
|
|
pdw = (u_long*)m_pSum;
|
|
|
|
for (dwLines = hilight,
|
|
pwAv = m_pAvMono + m_ScanParam.Size.dwPhyPixels * dwLines;
|
|
dwLines < (shading_lines - shadow);
|
|
dwLines++, pwAv += m_ScanParam.Size.dwPhyPixels) {
|
|
for (dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++)
|
|
pdw[dw] += pwAv[dw];
|
|
}
|
|
|
|
/* Software gain */
|
|
pValue = (MonoWordDef*)a_wWhiteShading;
|
|
if( scan->sParam.bSource != SOURCE_Negative ) {
|
|
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++) {
|
|
|
|
pdw[dw] = pdw[dw] * 1000 /((shading_lines-hilight-shadow) *
|
|
scan->sParam.swGain[1]);
|
|
if( pdw[dw] > 65535U )
|
|
pValue[dw].Mono = 65535;
|
|
else
|
|
pValue[dw].Mono = (u_short)pdw[dw];
|
|
|
|
if( pValue[dw].Mono > 16384U ) {
|
|
pValue[dw].Mono = (u_short)(GAIN_Target * 16384U / pValue[dw].Mono);
|
|
} else {
|
|
pValue[dw].Mono = GAIN_Target;
|
|
}
|
|
|
|
#ifdef SWAP_FINE
|
|
if( swap )
|
|
#endif
|
|
_SWAP(pValue[dw].HiLo.bHi, pValue[dw].HiLo.bLo);
|
|
}
|
|
|
|
} else{
|
|
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
|
|
pValue[dw].Mono = (u_short)(pdw[dw] /
|
|
(shading_lines - hilight - shadow));
|
|
|
|
/* swapping will be done later in usb_ResizeWhiteShading() */
|
|
}
|
|
}
|
|
}
|
|
|
|
usb_SaveCalSetShading( dev, &m_ScanParam );
|
|
|
|
if( scan->sParam.bSource != SOURCE_Negative ) {
|
|
usb_line_statistics( "White", a_wWhiteShading, m_ScanParam.Size.dwPhyPixels,
|
|
scan->sParam.bDataType == SCANDATATYPE_Color?1:0);
|
|
}
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** for negative film only
|
|
* we need to resize the gain to obtain bright white...
|
|
*/
|
|
static void usb_ResizeWhiteShading( double dAmp, u_short *pwShading, int iGain )
|
|
{
|
|
u_long dw, dwAmp;
|
|
u_short w;
|
|
|
|
DBG( _DBG_INFO2, "ResizeWhiteShading: dAmp=%.3f, iGain=%i\n", dAmp, iGain );
|
|
|
|
for( dw = 0; dw < m_ScanParam.Size.dwPhyPixels; dw++ ) {
|
|
|
|
dwAmp = (u_long)(GAIN_Target * 0x4000 /
|
|
(pwShading[dw] + 1) * dAmp) * iGain / 1000;
|
|
|
|
if( dwAmp <= GAIN_Target)
|
|
w = (u_short)dwAmp;
|
|
else
|
|
w = GAIN_Target;
|
|
|
|
#ifndef SWAP_FINE
|
|
pwShading[dw] = (u_short)_LOBYTE(w) * 256 + _HIBYTE(w);
|
|
#else
|
|
pwShading[dw] = w;
|
|
#endif
|
|
}
|
|
|
|
#ifdef SWAP_FINE
|
|
if( usb_HostSwap())
|
|
usb_Swap( pwShading, m_ScanParam.Size.dwPhyPixels );
|
|
#endif
|
|
}
|
|
|
|
/** do the base settings for calibration scans
|
|
*/
|
|
static void
|
|
usb_PrepareCalibration( Plustek_Device *dev )
|
|
{
|
|
ScanDef *scan = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
usb_GetSWOffsetGain( dev );
|
|
|
|
memset( &m_ScanParam, 0, sizeof(ScanParam));
|
|
|
|
m_ScanParam.UserDpi = scaps->OpticDpi;
|
|
m_ScanParam.PhyDpi = scaps->OpticDpi;
|
|
m_ScanParam.bChannels = scan->sParam.bChannels;
|
|
m_ScanParam.bBitDepth = 16;
|
|
m_ScanParam.bSource = scan->sParam.bSource;
|
|
m_ScanParam.Origin.y = 0;
|
|
|
|
if( scan->sParam.bDataType == SCANDATATYPE_Color )
|
|
m_ScanParam.bDataType = SCANDATATYPE_Color;
|
|
else
|
|
m_ScanParam.bDataType = SCANDATATYPE_Gray;
|
|
|
|
usb_SetMCLK( dev, &m_ScanParam );
|
|
|
|
/* preset these registers offset/gain */
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = 0;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
regs[0x45] &= ~0x10;
|
|
|
|
memset( a_wWhiteShading, 0, _SHADING_BUF * sizeof(a_wWhiteShading[0]) );
|
|
memset( a_wDarkShading, 0, _SHADING_BUF * sizeof(a_wDarkShading[0]) );
|
|
|
|
scan->skipCoarseCalib = SANE_FALSE;
|
|
|
|
if( dev->adj.cacheCalData )
|
|
if( usb_ReadAndSetCalData( dev ))
|
|
scan->skipCoarseCalib = SANE_TRUE;
|
|
|
|
/* as sheet-fed device we use the cached values, or
|
|
* perform the calibration upon request
|
|
*/
|
|
if( usb_IsSheetFedDevice(dev)) {
|
|
if( !scan->skipCoarseCalib && !usb_InCalibrationMode(dev)) {
|
|
|
|
DBG(_DBG_INFO2,"SHEET-FED device, skip coarse calibration!\n");
|
|
scan->skipCoarseCalib = SANE_TRUE;
|
|
|
|
regs[0x3b] = 0x0a;
|
|
regs[0x3c] = 0x0a;
|
|
regs[0x3d] = 0x0a;
|
|
|
|
/* use frontend values... */
|
|
if((dev->adj.rofs != -1) &&
|
|
(dev->adj.gofs != -1) && (dev->adj.bofs != -1)) {
|
|
regs[0x38] = (dev->adj.rofs & 0x3f);
|
|
regs[0x39] = (dev->adj.gofs & 0x3f);
|
|
regs[0x3a] = (dev->adj.bofs & 0x3f);
|
|
}
|
|
|
|
if((dev->adj.rgain != -1) &&
|
|
(dev->adj.ggain != -1) && (dev->adj.bgain != -1)) {
|
|
setAdjGain( dev->adj.rgain, ®s[0x3b] );
|
|
setAdjGain( dev->adj.ggain, ®s[0x3c] );
|
|
setAdjGain( dev->adj.bgain, ®s[0x3d] );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static SANE_Bool
|
|
usb_SpeedTest( Plustek_Device *dev )
|
|
{
|
|
int i;
|
|
double s, e, r, tr;
|
|
struct timeval start, end;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
u_long *scanbuf = dev->scanning.pScanBuffer;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
bMaxITA = 0xff;
|
|
|
|
DBG( 1, "#########################\n" );
|
|
DBG( 1, "usb_SpeedTest(%d,%lu)\n", dev->initialized, dev->transferRate );
|
|
if( dev->transferRate != DEFAULT_RATE ) {
|
|
DBG( 1, "* skipped, using already detected speed: %lu Bytes/s\n",
|
|
dev->transferRate );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
usb_PrepareCalibration( dev );
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = 0;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
/* define the strip to scan for warming up the lamp, in the end
|
|
* we always scan the full line, even for TPA
|
|
*/
|
|
m_ScanParam.bDataType = SCANDATATYPE_Color;
|
|
m_ScanParam.bCalibration = PARAM_Gain;
|
|
m_ScanParam.dMCLK = dMCLK;
|
|
m_ScanParam.bBitDepth = 8;
|
|
m_ScanParam.Size.dwLines = 1;
|
|
m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
|
|
scaps->OpticDpi.x / 300UL;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
|
|
2 * m_ScanParam.bChannels;
|
|
|
|
if( usb_IsCISDevice(dev))
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
|
|
m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
|
|
300UL / scaps->OpticDpi.x);
|
|
r = 0.0;
|
|
dev->transferRate = 2000000;
|
|
|
|
for( i = 0; i < _TLOOPS ; i++ ) {
|
|
|
|
if( !usb_SetScanParameters( dev, &m_ScanParam ))
|
|
return SANE_FALSE;
|
|
|
|
if( !usb_ScanBegin( dev, SANE_FALSE )) {
|
|
DBG( _DBG_ERROR, "usb_SpeedTest() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
if (!usb_IsDataAvailableInDRAM( dev ))
|
|
return SANE_FALSE;
|
|
|
|
m_fFirst = SANE_FALSE;
|
|
gettimeofday( &start, NULL );
|
|
usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes );
|
|
gettimeofday( &end, NULL );
|
|
usb_ScanEnd( dev );
|
|
s = (double)start.tv_sec * 1000000.0 + (double)start.tv_usec;
|
|
e = (double)end.tv_sec * 1000000.0 + (double)end.tv_usec;
|
|
|
|
if( e > s )
|
|
r += (e - s);
|
|
else
|
|
r += (s - e);
|
|
}
|
|
|
|
tr = ((double)m_ScanParam.Size.dwPhyBytes * _TLOOPS * 1000000.0)/r;
|
|
dev->transferRate = (u_long)tr;
|
|
DBG( 1, "usb_SpeedTest() done - %u loops, %.4fus --> %.4f B/s, %lu\n",
|
|
_TLOOPS, r, tr, dev->transferRate );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/** read the white calibration strip until the lamp seems to be stable
|
|
* the timed warmup will be used, when the warmup time is set to -1
|
|
*/
|
|
static SANE_Bool
|
|
usb_AutoWarmup( Plustek_Device *dev )
|
|
{
|
|
int i, stable_count;
|
|
ScanDef *scanning = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_long *scanbuf = scanning->pScanBuffer;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
u_long dw, start, end, len;
|
|
u_long curR, curG, curB;
|
|
u_long lastR, lastG, lastB;
|
|
long diffR, diffG, diffB;
|
|
long thresh = _AUTO_THRESH;
|
|
|
|
if( usb_IsEscPressed())
|
|
return SANE_FALSE;
|
|
|
|
bMaxITA = 0xff;
|
|
|
|
DBG( _DBG_INFO, "#########################\n" );
|
|
DBG( _DBG_INFO, "usb_AutoWarmup()\n" );
|
|
|
|
if( usb_IsCISDevice(dev)) {
|
|
DBG( _DBG_INFO, "- function skipped, CIS device!\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
if( dev->adj.warmup >= 0 ) {
|
|
DBG( _DBG_INFO, "- using timed warmup: %ds\n", dev->adj.warmup );
|
|
if( !usb_Wait4Warmup( dev )) {
|
|
DBG( _DBG_ERROR, "- CANCEL detected\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
usb_PrepareCalibration( dev );
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = 0;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
/* define the strip to scan for warming up the lamp, in the end
|
|
* we always scan the full line, even for TPA
|
|
*/
|
|
m_ScanParam.bDataType = SCANDATATYPE_Color;
|
|
m_ScanParam.bCalibration = PARAM_Gain;
|
|
m_ScanParam.dMCLK = dMCLK;
|
|
m_ScanParam.Size.dwLines = 1;
|
|
m_ScanParam.Size.dwPixels = scaps->Normal.Size.x *
|
|
scaps->OpticDpi.x / 300UL;
|
|
m_ScanParam.Size.dwBytes = m_ScanParam.Size.dwPixels *
|
|
2 * m_ScanParam.bChannels;
|
|
|
|
if( usb_IsCISDevice(dev))
|
|
m_ScanParam.Size.dwBytes *= 3;
|
|
|
|
m_ScanParam.Origin.x = (u_short)((u_long) hw->wActivePixelsStart *
|
|
300UL / scaps->OpticDpi.x);
|
|
|
|
stable_count = 0;
|
|
start = 500;
|
|
len = m_ScanParam.Size.dwPixels;
|
|
|
|
if( scanning->sParam.bSource == SOURCE_Transparency ) {
|
|
start = scaps->Positive.DataOrigin.x * scaps->OpticDpi.x / 300UL;
|
|
len = scaps->Positive.Size.x * scaps->OpticDpi.x / 300UL;
|
|
thresh = _AUTO_TPA_THRESH;
|
|
}
|
|
else if( scanning->sParam.bSource == SOURCE_Negative ) {
|
|
start = scaps->Negative.DataOrigin.x * scaps->OpticDpi.x / 300UL;
|
|
len = scaps->Negative.Size.x * scaps->OpticDpi.x / 300UL;
|
|
thresh = _AUTO_TPA_THRESH;
|
|
}
|
|
end = start + len;
|
|
DBG( _DBG_INFO2, "Start=%lu, End=%lu, Len=%lu, Thresh=%li\n",
|
|
start, end, len, thresh );
|
|
|
|
lastR = lastG = lastB = 0;
|
|
for( i = 0; i < _MAX_AUTO_WARMUP + 1 ; i++ ) {
|
|
|
|
if( !usb_SetScanParameters( dev, &m_ScanParam ))
|
|
return SANE_FALSE;
|
|
|
|
if( !usb_ScanBegin( dev, SANE_FALSE ) ||
|
|
!usb_ScanReadImage( dev, scanbuf, m_ScanParam.Size.dwPhyBytes ) ||
|
|
!usb_ScanEnd( dev )) {
|
|
DBG( _DBG_ERROR, "usb_AutoWarmup() failed\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
#ifdef SWAP_COARSE
|
|
if(usb_HostSwap())
|
|
#endif
|
|
usb_Swap((u_short *)scanbuf, m_ScanParam.Size.dwPhyBytes );
|
|
|
|
if( end > m_ScanParam.Size.dwPhyPixels )
|
|
end = m_ScanParam.Size.dwPhyPixels;
|
|
|
|
curR = curG = curB = 0;
|
|
for( dw = start; dw < end; dw++ ) {
|
|
|
|
if( usb_IsCISDevice(dev)) {
|
|
curR += ((u_short*)scanbuf)[dw];
|
|
curG += ((u_short*)scanbuf)[dw+m_ScanParam.Size.dwPhyPixels+1];
|
|
curB += ((u_short*)scanbuf)[dw+(m_ScanParam.Size.dwPhyPixels+1)*2];
|
|
} else {
|
|
curR += ((RGBUShortDef*)scanbuf)[dw].Red;
|
|
curG += ((RGBUShortDef*)scanbuf)[dw].Green;
|
|
curB += ((RGBUShortDef*)scanbuf)[dw].Blue;
|
|
}
|
|
}
|
|
curR /= len;
|
|
curG /= len;
|
|
curB /= len;
|
|
|
|
diffR = curR - lastR; lastR = curR;
|
|
diffG = curG - lastG; lastG = curG;
|
|
diffB = curB - lastB; lastB = curB;
|
|
DBG( _DBG_INFO2, "%i/%i-AVE(R,G,B)= %lu(%ld), %lu(%ld), %lu(%ld)\n",
|
|
i, stable_count, curR, diffR, curG, diffG, curB, diffB );
|
|
|
|
/* we consider the lamp to be stable,
|
|
* when the diffs are less than thresh for at least 3 loops
|
|
*/
|
|
if((diffR < thresh) && (diffG < thresh) && (diffB < thresh)) {
|
|
if( stable_count > 3 )
|
|
break;
|
|
stable_count++;
|
|
} else {
|
|
stable_count = 0;
|
|
}
|
|
|
|
/* no need to sleep in the first loop */
|
|
if((i != 0) && (stable_count == 0))
|
|
sleep( _AUTO_SLEEP );
|
|
}
|
|
|
|
DBG( _DBG_INFO, "usb_AutoWarmup() done - %u loops\n", i+1 );
|
|
DBG( _DBG_INFO, "* AVE(R,G,B)= %lu(%ld), %lu(%ld), %lu(%ld)\n",
|
|
curR, diffR, curG, diffG, curB, diffB );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static int
|
|
usb_DoIt( Plustek_Device *dev )
|
|
{
|
|
SANE_Bool skip_fine;
|
|
ScanDef *scan = &dev->scanning;
|
|
|
|
DBG( _DBG_INFO, "Settings done, so start...\n" );
|
|
if( !scan->skipCoarseCalib ) {
|
|
DBG( _DBG_INFO2, "###### ADJUST GAIN (COARSE)#######\n" );
|
|
if( !usb_AdjustGain(dev, 0)) {
|
|
DBG( _DBG_ERROR, "Coarse Calibration failed!!!\n" );
|
|
return _E_INTERNAL;
|
|
}
|
|
DBG( _DBG_INFO2, "###### ADJUST OFFSET (COARSE) ####\n" );
|
|
if( !usb_AdjustOffset(dev)) {
|
|
DBG( _DBG_ERROR, "Coarse Calibration failed!!!\n" );
|
|
return _E_INTERNAL;
|
|
}
|
|
} else {
|
|
DBG( _DBG_INFO2, "Coarse Calibration skipped, using saved data\n" );
|
|
}
|
|
|
|
skip_fine = SANE_FALSE;
|
|
if( dev->adj.cacheCalData ) {
|
|
skip_fine = usb_FineShadingFromFile(dev);
|
|
}
|
|
|
|
if( !skip_fine ) {
|
|
DBG( _DBG_INFO2, "###### ADJUST DARK (FINE) ########\n" );
|
|
if( !usb_AdjustDarkShading(dev)) {
|
|
DBG( _DBG_ERROR, "Fine Calibration failed!!!\n" );
|
|
return _E_INTERNAL;
|
|
}
|
|
DBG( _DBG_INFO2, "###### ADJUST WHITE (FINE) #######\n" );
|
|
if( !usb_AdjustWhiteShading(dev)) {
|
|
DBG( _DBG_ERROR, "Fine Calibration failed!!!\n" );
|
|
return _E_INTERNAL;
|
|
}
|
|
} else {
|
|
DBG( _DBG_INFO2, "###### FINE calibration skipped #######\n" );
|
|
|
|
m_ScanParam = scan->sParam;
|
|
usb_GetPhyPixels( dev, &m_ScanParam );
|
|
|
|
usb_line_statistics( "Dark", a_wDarkShading, m_ScanParam.Size.dwPhyPixels,
|
|
m_ScanParam.bDataType == SCANDATATYPE_Color?1:0);
|
|
usb_line_statistics( "White", a_wWhiteShading, m_ScanParam.Size.dwPhyPixels,
|
|
m_ScanParam.bDataType == SCANDATATYPE_Color?1:0);
|
|
|
|
/* dev->usbDev.a_bRegs[0x45] &= ~0x10;*/
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/** usb_DoCalibration
|
|
*/
|
|
static int
|
|
usb_DoCalibration( Plustek_Device *dev )
|
|
{
|
|
int result;
|
|
ScanDef *scanning = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
double dRed, dGreen, dBlue;
|
|
|
|
DBG( _DBG_INFO, "usb_DoCalibration()\n" );
|
|
|
|
if( SANE_TRUE == scanning->fCalibrated )
|
|
return SANE_TRUE;
|
|
|
|
/* Go to shading position
|
|
*/
|
|
DBG( _DBG_INFO, "...goto shading position\n" );
|
|
|
|
/* HEINER: Currently not clear why Plustek didn't use the ShadingOriginY
|
|
* for all modes
|
|
* It should be okay to remove this and reference to the ShadingOriginY
|
|
*/
|
|
#if 0
|
|
if( scanning->sParam.bSource == SOURCE_Negative ) {
|
|
|
|
DBG( _DBG_INFO, "DataOrigin.x=%u, DataOrigin.y=%u\n",
|
|
dev->usbDev.pSource->DataOrigin.x, dev->usbDev.pSource->DataOrigin.y);
|
|
if(!usb_ModuleMove( dev, MOVE_Forward,
|
|
(dev->usbDev.pSource->DataOrigin.y +
|
|
dev->usbDev.pSource->Size.y / 2))) {
|
|
return _E_LAMP_NOT_IN_POS;
|
|
}
|
|
|
|
} else {
|
|
#endif
|
|
DBG( _DBG_INFO, "ShadingOriginY=%lu\n",
|
|
(u_long)dev->usbDev.pSource->ShadingOriginY );
|
|
|
|
if((hw->motorModel == MODEL_HuaLien) && (scaps->OpticDpi.x==600)) {
|
|
if (!usb_ModuleMove(dev, MOVE_ToShading,
|
|
(u_long)dev->usbDev.pSource->ShadingOriginY)) {
|
|
return _E_LAMP_NOT_IN_POS;
|
|
}
|
|
} else {
|
|
if( !usb_ModuleMove(dev, MOVE_Forward,
|
|
(u_long)dev->usbDev.pSource->ShadingOriginY)) {
|
|
return _E_LAMP_NOT_IN_POS;
|
|
}
|
|
}
|
|
/* }*/
|
|
|
|
DBG( _DBG_INFO, "shading position reached\n" );
|
|
|
|
usb_SpeedTest( dev );
|
|
|
|
if( !usb_AutoWarmup( dev ))
|
|
return SANE_FALSE;
|
|
|
|
usb_PrepareCalibration( dev );
|
|
|
|
/** this won't work for Plustek devices!!!
|
|
*/
|
|
#if 0
|
|
if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ||
|
|
!(SCANDEF_QualityScan & dev->scanning.dwFlag)) {
|
|
#else
|
|
if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ) {
|
|
#endif
|
|
|
|
DBG( _DBG_INFO, "--> BYPASS\n" );
|
|
regs[0x38] = regs[0x39] = regs[0x3a] = 0;
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
setAdjGain( dev->adj.rgain, ®s[0x3b] );
|
|
setAdjGain( dev->adj.ggain, ®s[0x3c] );
|
|
setAdjGain( dev->adj.bgain, ®s[0x3d] );
|
|
|
|
regs[0x45] |= 0x10;
|
|
usb_SetMCLK( dev, &scanning->sParam );
|
|
|
|
dumpregs( dev->fd, regs );
|
|
DBG( _DBG_INFO, "<-- BYPASS\n" );
|
|
|
|
} else {
|
|
|
|
switch( scanning->sParam.bSource ) {
|
|
|
|
case SOURCE_Negative:
|
|
DBG( _DBG_INFO, "NEGATIVE Shading\n" );
|
|
m_dwIdealGain = IDEAL_GainNormal;
|
|
|
|
if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
DBG( _DBG_INFO, "No Plustek model: %udpi\n",
|
|
scanning->sParam.PhyDpi.x );
|
|
usb_SetMCLK( dev, &scanning->sParam );
|
|
} else {
|
|
|
|
if( dev->usbDev.Caps.OpticDpi.x == 600 )
|
|
dMCLK = 7;
|
|
else
|
|
dMCLK = 8;
|
|
}
|
|
|
|
for(;;) {
|
|
if( usb_AdjustGain( dev, 2)) {
|
|
if( regs[0x3b] && regs[0x3c] && regs[0x3d]) {
|
|
break;
|
|
} else {
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
dMCLK--;
|
|
}
|
|
} else {
|
|
return _E_LAMP_NOT_STABLE;
|
|
}
|
|
}
|
|
scanning->sParam.dMCLK = dMCLK;
|
|
Gain_Reg.Red = regs[0x3b];
|
|
Gain_Reg.Green = regs[0x3c];
|
|
Gain_Reg.Blue = regs[0x3d];
|
|
Gain_NegHilight = Gain_Hilight;
|
|
|
|
DBG( _DBG_INFO, "MCLK = %.3f\n", dMCLK );
|
|
DBG( _DBG_INFO, "GainRed = %u\n", regs[0x3b] );
|
|
DBG( _DBG_INFO, "GainGreen = %u\n", regs[0x3c] );
|
|
DBG( _DBG_INFO, "GainBlue = %u\n", regs[0x3d] );
|
|
|
|
#if 0
|
|
if( !usb_ModuleMove( dev, MOVE_Backward,
|
|
dev->usbDev.pSource->DataOrigin.y +
|
|
dev->usbDev.pSource->Size.y / 2 -
|
|
dev->usbDev.pSource->ShadingOriginY)) {
|
|
return _E_LAMP_NOT_IN_POS;
|
|
}
|
|
#endif
|
|
regs[0x45] &= ~0x10;
|
|
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
if(!usb_AdjustGain( dev, 1 ))
|
|
return _E_INTERNAL;
|
|
|
|
regs[0x3b] = regs[0x3c] = regs[0x3d] = 1;
|
|
|
|
DBG( _DBG_INFO, "Settings done, so start...\n" );
|
|
if( !usb_AdjustOffset(dev) || !usb_AdjustDarkShading(dev) ||
|
|
!usb_AdjustWhiteShading(dev)) {
|
|
return _E_INTERNAL;
|
|
}
|
|
|
|
dRed = 0.93 + 0.067 * Gain_Reg.Red;
|
|
dGreen = 0.93 + 0.067 * Gain_Reg.Green;
|
|
dBlue = 0.93 + 0.067 * Gain_Reg.Blue;
|
|
dExpect = 2.85;
|
|
if( dBlue >= dGreen && dBlue >= dRed )
|
|
dMax = dBlue;
|
|
else
|
|
if( dGreen >= dRed && dGreen >= dBlue )
|
|
dMax = dGreen;
|
|
else
|
|
dMax = dRed;
|
|
|
|
dMax = dExpect / dMax;
|
|
dRed *= dMax;
|
|
dGreen *= dMax;
|
|
dBlue *= dMax;
|
|
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
usb_ResizeWhiteShading( dRed, a_wWhiteShading,
|
|
scanning->sParam.swGain[0]);
|
|
usb_ResizeWhiteShading( dGreen, a_wWhiteShading +
|
|
m_ScanParam.Size.dwPhyPixels,
|
|
scanning->sParam.swGain[1]);
|
|
usb_ResizeWhiteShading( dBlue, a_wWhiteShading +
|
|
m_ScanParam.Size.dwPhyPixels*2,
|
|
scanning->sParam.swGain[2]);
|
|
}
|
|
usb_line_statistics( "White", a_wWhiteShading,
|
|
m_ScanParam.Size.dwPhyPixels, SANE_TRUE);
|
|
break;
|
|
|
|
case SOURCE_ADF:
|
|
DBG( _DBG_INFO, "ADF Shading\n" );
|
|
m_dwIdealGain = IDEAL_GainPositive;
|
|
if( scanning->sParam.bDataType == SCANDATATYPE_BW ) {
|
|
if( scanning->sParam.PhyDpi.x <= 200 ) {
|
|
scanning->sParam.dMCLK = 4.5;
|
|
dMCLK = 4.0;
|
|
} else if ( scanning->sParam.PhyDpi.x <= 300 ) {
|
|
scanning->sParam.dMCLK = 4.0;
|
|
dMCLK = 3.5;
|
|
} else if( scanning->sParam.PhyDpi.x <= 400 ) {
|
|
scanning->sParam.dMCLK = 5.0;
|
|
dMCLK = 4.0;
|
|
} else {
|
|
scanning->sParam.dMCLK = 6.0;
|
|
dMCLK = 4.0;
|
|
}
|
|
} else { /* Gray */
|
|
|
|
if( scanning->sParam.PhyDpi.x <= 400 ) {
|
|
scanning->sParam.dMCLK = 6.0;
|
|
dMCLK = 4.5;
|
|
} else {
|
|
scanning->sParam.dMCLK = 9.0;
|
|
dMCLK = 7.0;
|
|
}
|
|
}
|
|
dMCLK_ADF = dMCLK;
|
|
|
|
result = usb_DoIt( dev );
|
|
if( result != 0 )
|
|
return result;
|
|
break;
|
|
|
|
case SOURCE_Transparency:
|
|
DBG( _DBG_INFO, "TRANSPARENCY Shading\n" );
|
|
m_dwIdealGain = IDEAL_GainPositive;
|
|
|
|
if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
DBG( _DBG_INFO, "No Plustek model: %udpi\n",
|
|
scanning->sParam.PhyDpi.x );
|
|
usb_SetMCLK( dev, &scanning->sParam );
|
|
|
|
} else {
|
|
if( dev->usbDev.Caps.OpticDpi.x == 600 ) {
|
|
scanning->sParam.dMCLK = 8;
|
|
dMCLK = 4;
|
|
} else {
|
|
scanning->sParam.dMCLK = 8;
|
|
dMCLK = 6;
|
|
}
|
|
}
|
|
result = usb_DoIt( dev );
|
|
if( result != 0 )
|
|
return result;
|
|
break;
|
|
|
|
default:
|
|
if( !_IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
DBG( _DBG_INFO, "No Plustek model: %udpi\n",
|
|
scanning->sParam.PhyDpi.x );
|
|
usb_SetMCLK( dev, &scanning->sParam );
|
|
|
|
} else if( dev->usbDev.Caps.OpticDpi.x == 600 ) {
|
|
|
|
DBG( _DBG_INFO, "Default Shading (600dpi)\n" );
|
|
|
|
if( dev->usbDev.Caps.bCCD == kSONY548 ) {
|
|
|
|
DBG( _DBG_INFO, "CCD - SONY548\n" );
|
|
if( scanning->sParam.PhyDpi.x <= 75 ) {
|
|
if( scanning->sParam.bDataType == SCANDATATYPE_Color )
|
|
scanning->sParam.dMCLK = dMCLK = 2.5;
|
|
else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
|
|
scanning->sParam.dMCLK = dMCLK = 7.0;
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = 7.0;
|
|
|
|
} else if( scanning->sParam.PhyDpi.x <= 300 ) {
|
|
if( scanning->sParam.bDataType == SCANDATATYPE_Color )
|
|
scanning->sParam.dMCLK = dMCLK = 3.0;
|
|
else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
else {
|
|
if( scanning->sParam.PhyDpi.x <= 100 )
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
else if( scanning->sParam.PhyDpi.x <= 200 )
|
|
scanning->sParam.dMCLK = dMCLK = 5.0;
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = 4.5;
|
|
}
|
|
} else if( scanning->sParam.PhyDpi.x <= 400 ) {
|
|
if( scanning->sParam.bDataType == SCANDATATYPE_Color )
|
|
scanning->sParam.dMCLK = dMCLK = 4.0;
|
|
else if( scanning->sParam.bDataType == SCANDATATYPE_Gray )
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = 4.0;
|
|
} else {
|
|
if(scanning->sParam.bDataType == SCANDATATYPE_Color)
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
else if(scanning->sParam.bDataType == SCANDATATYPE_Gray)
|
|
scanning->sParam.dMCLK = dMCLK = 7.0;
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
}
|
|
|
|
} else if( dev->usbDev.Caps.bPCB == 0x02 ) {
|
|
DBG( _DBG_INFO, "PCB - 0x02\n" );
|
|
if( scanning->sParam.PhyDpi.x > 300 )
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 16);
|
|
else if( scanning->sParam.PhyDpi.x > 150 )
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?4.5: 13.5);
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 8);
|
|
|
|
} else if( dev->usbDev.Caps.bButtons ) { /* with lens Shading piece (with gobo) */
|
|
|
|
DBG( _DBG_INFO, "CAPS - Buttons\n" );
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
|
|
if( dev->usbDev.HwSetting.motorModel == MODEL_KaoHsiung ) {
|
|
if( dev->usbDev.Caps.bCCD == kNEC3799 ) {
|
|
if( scanning->sParam.PhyDpi.x > 300 )
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 13);
|
|
else if(scanning->sParam.PhyDpi.x > 150)
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?4.5:13.5);
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
|
|
} else {
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
|
|
}
|
|
} else { /* motorModel == MODEL_Hualien */
|
|
/* IMPORTANT !!!!
|
|
* for Hualien 600 dpi scanner big noise
|
|
*/
|
|
hw->wLineEnd = 5384;
|
|
if(scanning->sParam.bDataType == SCANDATATYPE_Color &&
|
|
((scanning->sParam.bBitDepth == 8 &&
|
|
(scanning->sParam.PhyDpi.x == 200 ||scanning->sParam.PhyDpi.x == 300))))
|
|
hw->wLineEnd = 7000;
|
|
regs[0x20] = _HIBYTE(hw->wLineEnd);
|
|
regs[0x21] = _LOBYTE(hw->wLineEnd);
|
|
|
|
if( scanning->sParam.PhyDpi.x > 300 ) {
|
|
if (scanning->sParam.bBitDepth > 8)
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 5: 13);
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 6: 13);
|
|
} else {
|
|
if( scanning->sParam.bBitDepth > 8 )
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 5: 13);
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)?3: 6);
|
|
}
|
|
}
|
|
} else { /* without lens Shading piece (without gobo) - Model U12 only */
|
|
DBG( _DBG_INFO, "Default trunc (U12)\n" );
|
|
if( scanning->sParam.PhyDpi.x > 300 )
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 3: 9);
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = ((scanning->sParam.bDataType == SCANDATATYPE_Color)? 2: 6);
|
|
}
|
|
} else { /* Device.Caps.OpticDpi.x == 1200 */
|
|
|
|
DBG( _DBG_INFO, "Default Shading (1200dpi)\n" );
|
|
if( scanning->sParam.bDataType != SCANDATATYPE_Color ) {
|
|
if( scanning->sParam.PhyDpi.x > 300 )
|
|
scanning->sParam.dMCLK = dMCLK = 6.0;
|
|
else {
|
|
scanning->sParam.dMCLK = dMCLK = 5.0;
|
|
regs[0x0a] = 1;
|
|
}
|
|
} else {
|
|
if( scanning->sParam.PhyDpi.x <= 300)
|
|
scanning->sParam.dMCLK = dMCLK = 2.0;
|
|
else if( scanning->sParam.PhyDpi.x <= 800 )
|
|
scanning->sParam.dMCLK = dMCLK = 4.0;
|
|
else
|
|
scanning->sParam.dMCLK = dMCLK = 5.5;
|
|
}
|
|
}
|
|
|
|
if (m_ScanParam.bSource == SOURCE_ADF)
|
|
m_dwIdealGain = IDEAL_GainPositive;
|
|
else
|
|
m_dwIdealGain = IDEAL_GainNormal;
|
|
|
|
result = usb_DoIt( dev );
|
|
if( result != 0 )
|
|
return result;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* home the sensor after calibration */
|
|
if( _IS_PLUSTEKMOTOR(hw->motorModel)) {
|
|
if( hw->motorModel != MODEL_Tokyo600 ) {
|
|
usb_ModuleMove ( dev, MOVE_Forward, hw->wMotorDpi / 5 );
|
|
usb_ModuleToHome( dev, SANE_TRUE );
|
|
}
|
|
} else {
|
|
usb_ModuleMove( dev, MOVE_Forward, 10 );
|
|
usleep( 1500 );
|
|
usb_ModuleToHome( dev, SANE_TRUE );
|
|
}
|
|
|
|
if( scanning->sParam.bSource == SOURCE_ADF ) {
|
|
|
|
if( scaps->bCCD == kNEC3778 )
|
|
usb_ModuleMove( dev, MOVE_Forward, 1000 );
|
|
|
|
else /* if( scaps->bCCD == kNEC3799) */
|
|
usb_ModuleMove( dev, MOVE_Forward, 3 * 300 + 38 );
|
|
|
|
usb_MotorOn( dev, SANE_FALSE );
|
|
}
|
|
|
|
scanning->fCalibrated = SANE_TRUE;
|
|
DBG( _DBG_INFO, "Calibration done\n" );
|
|
DBG( _DBG_INFO, "-----------------------\n" );
|
|
DBG( _DBG_INFO, "Static Gain:\n" );
|
|
DBG( _DBG_INFO, "REG[0x3b] = %u\n", regs[0x3b] );
|
|
DBG( _DBG_INFO, "REG[0x3c] = %u\n", regs[0x3c] );
|
|
DBG( _DBG_INFO, "REG[0x3d] = %u\n", regs[0x3d] );
|
|
DBG( _DBG_INFO, "Static Offset:\n" );
|
|
DBG( _DBG_INFO, "REG[0x38] = %i\n", regs[0x38] );
|
|
DBG( _DBG_INFO, "REG[0x39] = %i\n", regs[0x39] );
|
|
DBG( _DBG_INFO, "REG[0x3a] = %i\n", regs[0x3a] );
|
|
DBG( _DBG_INFO, "MCLK = %.2f\n", scanning->sParam.dMCLK );
|
|
DBG( _DBG_INFO, "-----------------------\n" );
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/* on different sensor orders, we need to adjust the shading buffer
|
|
* pointer, otherwise we correct the wrong channels
|
|
*/
|
|
static void
|
|
get_ptrs(Plustek_Device *dev, u_short *buf, u_long offs,
|
|
u_short **r, u_short **g, u_short **b)
|
|
{
|
|
ScanDef *scan = &dev->scanning;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
u_char so = scaps->bSensorOrder;
|
|
|
|
if (_WAF_RESET_SO_TO_RGB & scaps->workaroundFlag) {
|
|
if (scaps->bPCB != 0) {
|
|
if (scan->sParam.PhyDpi.x > scaps->bPCB)
|
|
so = SENSORORDER_rgb;
|
|
}
|
|
}
|
|
|
|
switch( so ) {
|
|
case SENSORORDER_gbr:
|
|
*g = buf;
|
|
*b = buf + offs;
|
|
*r = buf + offs * 2;
|
|
break;
|
|
|
|
case SENSORORDER_bgr:
|
|
*b = buf;
|
|
*g = buf + offs;
|
|
*r = buf + offs * 2;
|
|
break;
|
|
|
|
case SENSORORDER_rgb:
|
|
default:
|
|
*r = buf;
|
|
*g = buf + offs;
|
|
*b = buf + offs * 2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/** usb_DownloadShadingData
|
|
* according to the job id, different registers or DRAM areas are set
|
|
* in preparation for calibration or scanning
|
|
*/
|
|
static SANE_Bool
|
|
usb_DownloadShadingData( Plustek_Device *dev, u_char what )
|
|
{
|
|
u_char channel;
|
|
u_short *r, *g, *b;
|
|
DCapsDef *scaps = &dev->usbDev.Caps;
|
|
ScanDef *scan = &dev->scanning;
|
|
HWDef *hw = &dev->usbDev.HwSetting;
|
|
ScanParam *param = &dev->scanning.sParam;
|
|
u_char *regs = dev->usbDev.a_bRegs;
|
|
|
|
DBG( _DBG_INFO, "usb_DownloadShadingData(%u)\n", what );
|
|
|
|
channel = CHANNEL_green;
|
|
if( usb_IsCISDevice(dev))
|
|
channel = CHANNEL_blue;
|
|
|
|
switch( what ) {
|
|
|
|
case PARAM_WhiteShading:
|
|
if( m_ScanParam.bDataType == SCANDATATYPE_Color ) {
|
|
|
|
usb_SetDarkShading( dev, CHANNEL_red, a_wDarkShading,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetDarkShading( dev, CHANNEL_green, a_wDarkShading +
|
|
m_ScanParam.Size.dwPhyPixels,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetDarkShading( dev, CHANNEL_blue, a_wDarkShading +
|
|
m_ScanParam.Size.dwPhyPixels * 2,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
} else {
|
|
usb_SetDarkShading( dev, channel, a_wDarkShading +
|
|
m_ScanParam.Size.dwPhyPixels,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
}
|
|
regs[0x40] = 0x40;
|
|
regs[0x41] = 0x00;
|
|
|
|
/* set RAM configuration AND
|
|
* Gain = Multiplier Coefficient/16384
|
|
* CFG Register 0x40/0x41 for Multiplier Coefficient Source
|
|
* External DRAM for Offset Coefficient Source
|
|
*/
|
|
regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x64: 0x24);
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x40,
|
|
®s[0x40], 0x42-0x40+1, SANE_TRUE ));
|
|
break;
|
|
|
|
case PARAM_Scan:
|
|
{
|
|
#if 0
|
|
if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ||
|
|
!(SCANDEF_QualityScan & dev->scanning.dwFlag)) {
|
|
#else
|
|
if( scaps->workaroundFlag & _WAF_BYPASS_CALIBRATION ) {
|
|
#endif
|
|
DBG( _DBG_INFO, "--> BYPASS\n" );
|
|
/* set RAM configuration AND
|
|
* Bypass Multiplier
|
|
* CFG Register 0x40/0x41 for Multiplier Coefficient Source
|
|
* CFG Register 0x3e/0x3f for Offset Coefficient Source
|
|
*/
|
|
regs[0x03] = 0;
|
|
regs[0x40] = 0x40;
|
|
regs[0x41] = 0x00;
|
|
regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x61:0x21);
|
|
if( !usbio_WriteReg( dev->fd, 0x03, regs[0x03]))
|
|
return SANE_FALSE;
|
|
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x40,
|
|
®s[0x40], 3, SANE_TRUE));
|
|
break;
|
|
}
|
|
|
|
if( _LM9831 != hw->chip )
|
|
m_dwPixels = m_ScanParam.Size.dwPhyPixels;
|
|
|
|
if( scaps->workaroundFlag & _WAF_SKIP_FINE ) {
|
|
DBG( _DBG_INFO, "Skipping fine calibration\n" );
|
|
regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x60: 0x20);
|
|
if (scan->skipCoarseCalib) {
|
|
|
|
DBG( _DBG_INFO, "...cleaning shading buffer\n" );
|
|
memset( a_wWhiteShading, 0, _SHADING_BUF * sizeof(a_wWhiteShading[0]) );
|
|
memset( a_wDarkShading, 0, _SHADING_BUF * sizeof(a_wDarkShading[0]) );
|
|
|
|
regs[0x40] = 0x3f;
|
|
regs[0x41] = 0xff;
|
|
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x40,
|
|
®s[0x40], 3, SANE_TRUE));
|
|
} else {
|
|
if( !usbio_WriteReg( dev->fd, 0x42, regs[0x42]))
|
|
return SANE_FALSE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
DBG( _DBG_INFO, "Downloading %lu pixels\n", m_dwPixels );
|
|
/* Download the dark & white shadings to LM983x */
|
|
if( param->bDataType == SCANDATATYPE_Color ) {
|
|
|
|
get_ptrs(dev, a_wDarkShading, m_dwPixels, &r, &g, &b);
|
|
|
|
usb_SetDarkShading( dev, CHANNEL_red, r,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetDarkShading( dev, CHANNEL_green, g,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetDarkShading( dev, CHANNEL_blue, b,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
} else {
|
|
usb_SetDarkShading( dev, channel,
|
|
a_wDarkShading + m_dwPixels,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
}
|
|
if( param->bDataType == SCANDATATYPE_Color ) {
|
|
|
|
get_ptrs(dev, a_wWhiteShading,
|
|
m_ScanParam.Size.dwPhyPixels, &r, &g, &b);
|
|
|
|
usb_SetWhiteShading( dev, CHANNEL_red, r,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetWhiteShading( dev, CHANNEL_green, g,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
usb_SetWhiteShading( dev, CHANNEL_blue, b,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
} else {
|
|
usb_SetWhiteShading( dev, channel, a_wWhiteShading,
|
|
(u_short)m_ScanParam.Size.dwPhyPixels * 2);
|
|
}
|
|
|
|
/* set RAM configuration AND
|
|
* Gain = Multiplier Coefficient/16384
|
|
* External DRAM for Multiplier Coefficient Source
|
|
* External DRAM for Offset Coefficient Source
|
|
*/
|
|
regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x66: 0x26);
|
|
|
|
if( scaps->workaroundFlag & _WAF_SKIP_WHITEFINE ) {
|
|
DBG( _DBG_INFO,"Skipping fine white calibration result\n");
|
|
regs[0x42] = (u_char)(( hw->wDRAMSize > 512)? 0x64: 0x24);
|
|
}
|
|
|
|
if( !usbio_WriteReg( dev->fd, 0x42, regs[0x42]))
|
|
return SANE_FALSE;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* for coarse calibration and "black fine" */
|
|
regs[0x3e] = 0;
|
|
regs[0x3f] = 0;
|
|
regs[0x40] = 0x40;
|
|
regs[0x41] = 0x00;
|
|
|
|
/* set RAM configuration AND
|
|
* GAIN = Multiplier Coefficient/16384
|
|
* CFG Register 0x40/0x41 for Multiplier Coefficient Source
|
|
* CFG Register 0x3e/0x3f for Offset Coefficient Source
|
|
*/
|
|
regs[0x42] = (u_char)((hw->wDRAMSize > 512)? 0x60: 0x20);
|
|
_UIO(sanei_lm983x_write( dev->fd, 0x3e, ®s[0x3e],
|
|
0x42 - 0x3e + 1, SANE_TRUE ));
|
|
break;
|
|
}
|
|
return SANE_TRUE;
|
|
}
|
|
|
|
/* END PLUSTEK-USBSHADING.C .................................................*/
|