kopia lustrzana https://gitlab.com/sane-project/backends
2465 wiersze
70 KiB
C
2465 wiersze
70 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.c
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* @brief SANE backend for Plustek scanner
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*
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* Based on Kazuhiro Sasayama previous work on
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* plustek.[ch] file from the SANE package.<br>
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* Original code taken from sane-0.71<br>
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* Copyright (C) 1997 Hypercore Software Design, Ltd.<br>
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* Also based on the work done by Rick Bronson<br>
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* Copyright (C) 2000-2003 Gerhard Jaeger <gerhard@gjaeger.de><br>
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*
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* History:
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* - 0.30 - initial version
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* - 0.31 - no changes
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* - 0.32 - no changes
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* - 0.33 - no changes
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* - 0.34 - moved some definitions and typedefs to plustek.h
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* - 0.35 - removed Y-correction for 12000P model<br>
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* - getting Y-size of scan area from driver
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* - 0.36 - disabled Dropout, as this does currently not work<br>
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* - enabled Halftone selection only for Halftone-mode<br>
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* - made the cancel button work by using a child process during read<br>
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* - added version code to driver interface<br>
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* - cleaned up the code<br>
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* - fixed sane compatibility problems<br>
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* - added multiple device support<br>
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* - 12bit color-depth are now available for scanimage
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* - 0.37 - removed X/Y autocorrection, now correcting the stuff
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* before scanning
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* - applied Michaels' patch to solve the sane_get_parameter problem<br>
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* - getting X-size of scan area from driver<br>
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* - applied Michaels patch for OPT_RESOLUTION (SANE_INFO_INEXACT stuff)
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* - 0.38 - now using the information from the driver
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* - some minor fixes<br>
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* - removed dropout stuff<br>
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* - removed some warning conditions
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* - 0.39 - added stuff to use the backend completely in user mode<br>
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* - fixed a potential buffer problem<br>
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* - removed function attach_one()<br>
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* - added USB interface stuff
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* - 0.40 - USB scanning works now
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* - 0.41 - added some configuration stuff and also changed .conf file<br>
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* - added call to sanei_usb_init() and sanei_lm983x_init()
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* - 0.42 - added adjustment stuff<br>
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* - added custom gamma tables<br>
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* - fixed a problem with the "size-sliders"<br>
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* - fixed a bug that causes segfault when using the autodetection for
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* USB devices<br>
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* - added OS/2 switch to disable the USB stuff for OS/2
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* - 0.43 - added support for PREVIEW flag
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* - 0.44 - added _DBG_DUMP debug level<br>
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* - fixed a bug, that stops our lamp timer
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* - 0.45 - added additional flags
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* - added WIFSIGNALED to check result of child termination
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* - changed readImage interface for USB devices
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* - homeing of USB scanner is now working correctly
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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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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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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/** @mainpage
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* @verbinclude Plustek-USB.txt
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*/
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#ifdef _AIX
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# include <lalloca.h> /* MUST come first for AIX! */
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#endif
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#include "sane/config.h"
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#include <lalloca.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <time.h>
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#include <math.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include "sane/sane.h"
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#include "sane/sanei.h"
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#include "sane/saneopts.h"
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#define BACKEND_VERSION "0.45-6"
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#define BACKEND_NAME plustek
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#include "sane/sanei_backend.h"
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#include "sane/sanei_config.h"
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/** might be used to disable all USB stuff - esp. for OS/2 */
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#ifndef HAVE_OS2_H
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# define _PLUSTEK_USB
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#endif
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#include "plustek-share.h"
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#ifdef _PLUSTEK_USB
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# include "plustek-usb.h"
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#endif
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#include "plustek.h"
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/*********************** the debug levels ************************************/
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#define _DBG_FATAL 0
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#define _DBG_ERROR 1
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#define _DBG_WARNING 3
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#define _DBG_INFO 5
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#define _DBG_PROC 7
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#define _DBG_SANE_INIT 10
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#define _DBG_INFO2 13
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#define _DBG_DUMP 20
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#define _DBG_READ 25
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/*****************************************************************************/
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#define _DEFAULT_DEVICE "/dev/pt_drv"
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/* declare it here, as it's used in plustek-usbscan.c too :-( */
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static SANE_Bool cancelRead;
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/* the USB-stuff... I know this is in general no good idea, but it works */
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#ifdef _PLUSTEK_USB
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# include "plustek-usbio.c"
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# include "plustek-devs.c"
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# include "plustek-usbhw.c"
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# include "plustek-usbmap.c"
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# include "plustek-usbscan.c"
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# include "plustek-usbimg.c"
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# include "plustek-usbshading.c"
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# include "plustek-usb.c"
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#endif
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/* the parport wrapper... */
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#include "plustek-pp.c"
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/************************** global vars **************************************/
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static int num_devices;
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static Plustek_Device *first_dev;
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static Plustek_Scanner *first_handle;
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static const SANE_Device **devlist = 0;
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static unsigned long tsecs = 0;
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static ModeParam mode_params[] =
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{
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{0, 1, COLOR_BW},
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{0, 1, COLOR_HALFTONE},
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{0, 8, COLOR_256GRAY},
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{1, 8, COLOR_TRUE24},
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{1, 16, COLOR_TRUE32},
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{1, 16, COLOR_TRUE36}
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};
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static ModeParam mode_9800x_params[] =
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{
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{0, 1, COLOR_BW},
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{0, 1, COLOR_HALFTONE},
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{0, 8, COLOR_256GRAY},
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{1, 8, COLOR_TRUE24},
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{1, 16, COLOR_TRUE48}
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};
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static ModeParam mode_usb_params[] =
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{
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{0, 1, COLOR_BW},
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{0, 8, COLOR_256GRAY},
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{0, 16, COLOR_GRAY16},
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{1, 8, COLOR_TRUE24},
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{1, 16, COLOR_TRUE48}
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};
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static const SANE_String_Const mode_list[] =
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{
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SANE_I18N("Binary"),
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SANE_I18N("Halftone"),
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SANE_I18N("Gray"),
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SANE_I18N("Color"),
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/* SANE_I18N("Color30"), */
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NULL
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};
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static const SANE_String_Const mode_9800x_list[] =
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{
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SANE_I18N("Binary"),
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SANE_I18N("Halftone"),
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SANE_I18N("Gray"),
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SANE_I18N("Color"),
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SANE_I18N("Color36"),
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NULL
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};
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static const SANE_String_Const mode_usb_list[] =
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{
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SANE_I18N("Binary"),
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SANE_I18N("Gray"),
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SANE_I18N("Gray 14/16"),
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SANE_I18N("Color"),
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SANE_I18N("Color 42/48"),
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NULL
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};
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static const SANE_String_Const ext_mode_list[] =
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{
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SANE_I18N("Normal"),
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SANE_I18N("Transparency"),
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SANE_I18N("Negative"),
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NULL
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};
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static const SANE_String_Const halftone_list[] =
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{
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SANE_I18N("Dithermap 1"),
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SANE_I18N("Dithermap 2"),
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SANE_I18N("Randomize"),
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NULL
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};
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static const SANE_Range percentage_range =
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{
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-100 << SANE_FIXED_SCALE_SHIFT, /* minimum */
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100 << SANE_FIXED_SCALE_SHIFT, /* maximum */
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1 << SANE_FIXED_SCALE_SHIFT /* quantization */
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};
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/*
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* lens info
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*/
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static LensInfo lens = {{0,0,0,0,},{0,0,0,0,},{0,0,0,0,},{0,0,0,0,},0,0};
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/*
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* see plustek-share.h
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*/
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MODELSTR;
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/* authorization stuff */
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static SANE_Auth_Callback auth = NULL;
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/****************************** the backend... *******************************/
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/**
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* function to display the configuration options for the current device
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* @param cnf - pointer to the configuration structure whose content should be
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* displayed
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*/
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static void show_cnf( pCnfDef cnf )
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{
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DBG( _DBG_SANE_INIT, "Device configuration:\n" );
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DBG( _DBG_SANE_INIT, "device name : >%s<\n", cnf->devName );
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DBG( _DBG_SANE_INIT, "porttype : %d\n", cnf->porttype );
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DBG( _DBG_SANE_INIT, "USB-ID : >%s<\n", cnf->usbId );
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DBG( _DBG_SANE_INIT, "warmup : %ds\n", cnf->adj.warmup );
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DBG( _DBG_SANE_INIT, "lampOff : %d\n", cnf->adj.lampOff );
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DBG( _DBG_SANE_INIT, "lampOffOnEnd : %d\n", cnf->adj.lampOffOnEnd );
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DBG( _DBG_SANE_INIT, "skipCalibr. : %d\n", cnf->adj.skipCalibration );
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DBG( _DBG_SANE_INIT, "skipFine : %d\n", cnf->adj.skipFine );
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DBG( _DBG_SANE_INIT, "skipFineWhite: %d\n", cnf->adj.skipFineWhite );
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DBG( _DBG_SANE_INIT, "invertNegs. : %d\n", cnf->adj.invertNegatives );
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DBG( _DBG_SANE_INIT, "pos_x : %d\n", cnf->adj.pos.x );
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DBG( _DBG_SANE_INIT, "pos_y : %d\n", cnf->adj.pos.y );
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DBG( _DBG_SANE_INIT, "pos_shading_y: %d\n", cnf->adj.posShadingY );
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DBG( _DBG_SANE_INIT, "neg_x : %d\n", cnf->adj.neg.x );
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DBG( _DBG_SANE_INIT, "neg_y : %d\n", cnf->adj.neg.y );
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DBG( _DBG_SANE_INIT, "neg_shading_y: %d\n", cnf->adj.negShadingY );
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DBG( _DBG_SANE_INIT, "tpa_x : %d\n", cnf->adj.tpa.x );
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DBG( _DBG_SANE_INIT, "tpa_y : %d\n", cnf->adj.tpa.y );
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DBG( _DBG_SANE_INIT, "tpa_shading_y: %d\n", cnf->adj.tpaShadingY );
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DBG( _DBG_SANE_INIT, "red gain : %d\n", cnf->adj.rgain );
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DBG( _DBG_SANE_INIT, "green gain : %d\n", cnf->adj.ggain );
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DBG( _DBG_SANE_INIT, "blue gain : %d\n", cnf->adj.bgain );
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DBG( _DBG_SANE_INIT, "red Gamma : %.2f\n", cnf->adj.rgamma );
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DBG( _DBG_SANE_INIT, "green Gamma : %.2f\n", cnf->adj.ggamma );
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DBG( _DBG_SANE_INIT, "blue Gamma : %.2f\n", cnf->adj.bgamma );
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DBG( _DBG_SANE_INIT, "gray Gamma : %.2f\n", cnf->adj.graygamma );
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DBG( _DBG_SANE_INIT, "---------------------\n" );
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}
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/** open the device specific driver and reset the internal timing stuff
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* @param dev - pointer to the device specific structure
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* @return the function returns the result of the open call, on success
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* of course the handle
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*/
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static int drvopen( Plustek_Device *dev )
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{
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int handle;
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DBG( _DBG_INFO, "drvopen()\n" );
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handle = dev->open((const char*)dev->name, (void *)dev );
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tsecs = 0;
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return handle;
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}
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/** Calls the device specific stop and close functions.
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* @param dev - pointer to the device specific structure
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* @return The function always returns SANE_STATUS_GOOD
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*/
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static SANE_Status drvclose( Plustek_Device *dev )
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{
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int int_cnt;
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if( dev->fd >= 0 ) {
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DBG( _DBG_INFO, "drvclose()\n" );
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if( 0 != tsecs ) {
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DBG( _DBG_INFO, "TIME END 1: %lus\n", time(NULL)-tsecs);
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}
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/*
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* don't check the return values, simply do it and close the driver
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*/
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int_cnt = 0;
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dev->stopScan( dev, &int_cnt );
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dev->close( dev );
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}
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dev->fd = -1;
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return SANE_STATUS_GOOD;
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}
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/** according to the mode and source we return the corresponding mode list
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*/
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static pModeParam getModeList( Plustek_Scanner *scanner )
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{
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pModeParam mp;
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if( _ASIC_IS_USB == scanner->hw->caps.AsicID ) {
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mp = mode_usb_params;
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} else {
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if((_ASIC_IS_98003 == scanner->hw->caps.AsicID) ||
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(_ASIC_IS_98001 == scanner->hw->caps.AsicID)) {
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mp = mode_9800x_params;
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} else {
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mp = mode_params;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* the transparency/negative mode supports only GRAY/COLOR/COLOR32/COLOR48
|
||
*/
|
||
if( 0 != scanner->val[OPT_EXT_MODE].w ) {
|
||
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if( _ASIC_IS_USB == scanner->hw->caps.AsicID )
|
||
mp = &mp[_TPAModeSupportMin];
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||
else
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||
mp = &mp[_TPAModeSupportMin];
|
||
}
|
||
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return mp;
|
||
}
|
||
|
||
/** function to check what our reader process returns. If the
|
||
* process didn't exist, we can be sure, that we had any other problems
|
||
*/
|
||
static SANE_Bool getReaderProcessExitCode( Plustek_Scanner *scanner )
|
||
{
|
||
int res;
|
||
int status;
|
||
|
||
scanner->exit_code = SANE_STATUS_IO_ERROR;
|
||
|
||
if( scanner->reader_pid > 0 ) {
|
||
|
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res = waitpid( scanner->reader_pid, &status, WNOHANG );
|
||
|
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if( res == scanner->reader_pid ) {
|
||
|
||
DBG( _DBG_INFO, "res=%i, status=%i\n",res,status );
|
||
|
||
if( WIFEXITED( status )) {
|
||
|
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scanner->exit_code = WEXITSTATUS(status);
|
||
DBG( _DBG_INFO, "Child WEXITSTATUS = %d\n",scanner->exit_code);
|
||
|
||
} else {
|
||
|
||
if( !WIFSIGNALED( status )) {
|
||
scanner->exit_code = SANE_STATUS_GOOD;
|
||
DBG( _DBG_INFO, "Child termination okay\n" );
|
||
} else {
|
||
DBG( _DBG_ERROR, "Child terminated by signal %d\n",
|
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WTERMSIG(status));
|
||
}
|
||
}
|
||
|
||
scanner->reader_pid = -1;
|
||
return SANE_TRUE;
|
||
}
|
||
}
|
||
|
||
return SANE_FALSE;
|
||
}
|
||
|
||
/**
|
||
*/
|
||
static SANE_Status close_pipe( Plustek_Scanner *scanner )
|
||
{
|
||
if( scanner->pipe >= 0 ) {
|
||
|
||
DBG( _DBG_PROC, "close_pipe\n" );
|
||
|
||
close( scanner->pipe );
|
||
scanner->pipe = -1;
|
||
}
|
||
|
||
return SANE_STATUS_EOF;
|
||
}
|
||
|
||
/**
|
||
*/
|
||
static void sig_chldhandler( int signo )
|
||
{
|
||
DBG( _DBG_PROC, "Child is down (signal=%d)\n", signo );
|
||
}
|
||
|
||
/** signal handler to kill the child process
|
||
*/
|
||
static RETSIGTYPE reader_process_sigterm_handler( int signo )
|
||
{
|
||
DBG( _DBG_PROC, "reader_process: terminated by signal %d\n", signo );
|
||
_exit( SANE_STATUS_GOOD );
|
||
}
|
||
|
||
static RETSIGTYPE usb_reader_process_sigterm_handler( int signo )
|
||
{
|
||
DBG( _DBG_PROC, "reader_process: terminated by signal %d\n", signo );
|
||
cancelRead = SANE_TRUE;
|
||
}
|
||
|
||
static RETSIGTYPE sigalarm_handler( int signo )
|
||
{
|
||
_VAR_NOT_USED( signo );
|
||
DBG( _DBG_PROC, "ALARM!!!\n" );
|
||
}
|
||
|
||
/** executed as a child process
|
||
* read the data from the driver and send them to the parent process
|
||
*/
|
||
static int reader_process( Plustek_Scanner *scanner, int pipe_fd )
|
||
{
|
||
int line;
|
||
unsigned long status;
|
||
unsigned long data_length;
|
||
struct SIGACTION act;
|
||
|
||
DBG( _DBG_PROC, "reader_process started\n" );
|
||
|
||
/* install the signal handler */
|
||
cancelRead = SANE_FALSE;
|
||
|
||
sigemptyset(&(act.sa_mask));
|
||
act.sa_flags = 0;
|
||
|
||
act.sa_handler = reader_process_sigterm_handler;
|
||
sigaction( SIGTERM, &act, 0 );
|
||
|
||
if( _ASIC_IS_USB == scanner->hw->caps.AsicID ) {
|
||
act.sa_handler = usb_reader_process_sigterm_handler;
|
||
sigaction( SIGUSR1, &act, 0 );
|
||
}
|
||
|
||
data_length = scanner->params.lines * scanner->params.bytes_per_line;
|
||
|
||
DBG( _DBG_PROC, "reader_process:"
|
||
"starting to READ data (%lu bytes)\n", data_length );
|
||
DBG( _DBG_PROC, "buf = 0x%08lx\n", (unsigned long)scanner->buf );
|
||
|
||
if( NULL == scanner->buf ) {
|
||
DBG( _DBG_FATAL, "NULL Pointer !!!!\n" );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* here we read all data from the driver... */
|
||
if( scanner->hw->readImage ) {
|
||
|
||
status = (unsigned long)scanner->hw->readImage( scanner->hw,
|
||
scanner->buf, data_length);
|
||
} else {
|
||
|
||
unsigned char *buf = scanner->buf;
|
||
|
||
|
||
status = scanner->hw->prepare( scanner->hw, buf );
|
||
|
||
if( 0 == status ) {
|
||
|
||
for( line = 0; line < scanner->params.lines; line++ ) {
|
||
|
||
status = scanner->hw->readLine( scanner->hw );
|
||
if((int)status < 0 ) {
|
||
break;
|
||
}
|
||
|
||
write( pipe_fd, buf, scanner->params.bytes_per_line );
|
||
|
||
buf += scanner->params.bytes_per_line;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* on error, there's no need to clean up, as this is done by the parent */
|
||
if((int)status < 0 ) {
|
||
DBG( _DBG_ERROR, "read failed, status = %i, errno %i\n",
|
||
(int)status, errno );
|
||
if( -9009 == (int)status )
|
||
return SANE_STATUS_CANCELLED;
|
||
|
||
if( errno == EBUSY )
|
||
return SANE_STATUS_DEVICE_BUSY;
|
||
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* send to parent */
|
||
if( scanner->hw->readImage ) {
|
||
DBG( _DBG_PROC, "sending %lu bytes to parent\n", status );
|
||
write( pipe_fd, scanner->buf, status );
|
||
}
|
||
|
||
pipe_fd = -1;
|
||
|
||
DBG( _DBG_PROC, "reader_process: finished reading data\n" );
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** stop the current scan process
|
||
*/
|
||
static SANE_Status do_cancel( Plustek_Scanner *scanner, SANE_Bool closepipe )
|
||
{
|
||
struct SIGACTION act;
|
||
pid_t res;
|
||
int int_cnt;
|
||
|
||
DBG( _DBG_PROC,"do_cancel\n" );
|
||
|
||
scanner->scanning = SANE_FALSE;
|
||
|
||
if( scanner->reader_pid > 0 ) {
|
||
|
||
DBG( _DBG_PROC, ">>>>>>>> killing reader_process <<<<<<<<\n" );
|
||
|
||
/* tell the driver to stop scanning */
|
||
if( _ASIC_IS_USB != scanner->hw->caps.AsicID ) {
|
||
if( -1 != scanner->hw->fd ) {
|
||
int_cnt = 1;
|
||
scanner->hw->stopScan( scanner->hw, &int_cnt );
|
||
}
|
||
}
|
||
|
||
cancelRead = SANE_TRUE;
|
||
|
||
sigemptyset(&(act.sa_mask));
|
||
act.sa_flags = 0;
|
||
|
||
act.sa_handler = sigalarm_handler;
|
||
sigaction( SIGALRM, &act, 0 );
|
||
|
||
/* kill our child process and wait until done */
|
||
if( _ASIC_IS_USB == scanner->hw->caps.AsicID )
|
||
kill( scanner->reader_pid, SIGUSR1 );
|
||
else
|
||
kill( scanner->reader_pid, SIGTERM );
|
||
|
||
/* give'em 10 seconds 'til done...*/
|
||
alarm(10);
|
||
res = waitpid( scanner->reader_pid, 0, 0 );
|
||
alarm(0);
|
||
|
||
if( res != scanner->reader_pid ) {
|
||
DBG( _DBG_PROC,"waitpid() failed !\n");
|
||
kill( scanner->reader_pid, SIGKILL );
|
||
}
|
||
|
||
scanner->reader_pid = 0;
|
||
DBG( _DBG_PROC,"reader_process killed\n");
|
||
}
|
||
|
||
if( SANE_TRUE == closepipe ) {
|
||
close_pipe( scanner );
|
||
}
|
||
|
||
drvclose( scanner->hw );
|
||
|
||
if( tsecs != 0 ) {
|
||
DBG( _DBG_INFO, "TIME END 2: %lus\n", time(NULL)-tsecs);
|
||
tsecs = 0;
|
||
}
|
||
|
||
return SANE_STATUS_CANCELLED;
|
||
}
|
||
|
||
/** because of some internal problems (inside the parport driver), we have to
|
||
* limit the max resolution to optical resolution. This is done by this
|
||
* function
|
||
* @param dev - pointer to the device specific structure
|
||
* @return The function always returns SANE_STATUS_GOOD
|
||
*/
|
||
static SANE_Status limitResolution( Plustek_Device *dev )
|
||
{
|
||
dev->dpi_range.min = /*lens.rDpiY.wMin; */ _DEF_DPI;
|
||
if( dev->dpi_range.min < _DEF_DPI )
|
||
dev->dpi_range.min = _DEF_DPI;
|
||
|
||
/*
|
||
* CHANGE: limit resolution to max. physical available one
|
||
* Note: the resolution for the Asic 96001/3 models is limited to
|
||
* the X-Resolution
|
||
*/
|
||
if((_ASIC_IS_96003 == dev->caps.AsicID) ||
|
||
(_ASIC_IS_96001 == dev->caps.AsicID)) {
|
||
dev->dpi_range.max = lens.rDpiX.wPhyMax;
|
||
} else {
|
||
dev->dpi_range.max = lens.rDpiY.wPhyMax;
|
||
}
|
||
|
||
dev->dpi_range.quant = 0;
|
||
dev->x_range.min = 0;
|
||
dev->x_range.max = SANE_FIX(dev->max_x);
|
||
dev->x_range.quant = 0;
|
||
dev->y_range.min = 0;
|
||
dev->y_range.max = SANE_FIX(dev->max_y);
|
||
dev->y_range.quant = 0;
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** Currently we support only LM9831/2/3 chips and these use the same
|
||
* sizes...
|
||
* @param s - pointer to the scanner specific structure
|
||
* @return The function always returns SANE_STATUS_GOOD
|
||
*/
|
||
static SANE_Status initGammaSettings( Plustek_Scanner *s )
|
||
{
|
||
int i, j, val;
|
||
double gamma;
|
||
|
||
/*
|
||
* this setting is common to the ASIC98001/3 and
|
||
* LM9831/2/3 based devices
|
||
* older parallelport devices use 256 entries
|
||
*/
|
||
s->gamma_length = 4096;
|
||
s->gamma_range.min = 0;
|
||
s->gamma_range.max = 255;
|
||
s->gamma_range.quant = 0;
|
||
|
||
if((_ASIC_IS_96003 == s->hw->caps.AsicID) ||
|
||
(_ASIC_IS_96001 == s->hw->caps.AsicID)) {
|
||
|
||
s->gamma_length = 256;
|
||
}
|
||
|
||
DBG( _DBG_INFO, "Presetting Gamma tables (len=%u)\n", s->gamma_length );
|
||
DBG( _DBG_INFO, "----------------------------------\n" );
|
||
|
||
/*
|
||
* preset the gamma maps
|
||
*/
|
||
for( i = 0; i < 4; i++ ) {
|
||
|
||
switch( i ) {
|
||
case 1: gamma = s->hw->adj.rgamma; break;
|
||
case 2: gamma = s->hw->adj.ggamma; break;
|
||
case 3: gamma = s->hw->adj.bgamma; break;
|
||
default: gamma = s->hw->adj.graygamma; break;
|
||
}
|
||
|
||
for( j = 0; j < s->gamma_length; j++ ) {
|
||
|
||
val = (s->gamma_range.max *
|
||
pow((double) j / ((double)s->gamma_length - 1.0),
|
||
1.0 / gamma ));
|
||
|
||
if( val > s->gamma_range.max )
|
||
val = s->gamma_range.max;
|
||
|
||
s->gamma_table[i][j] = val;
|
||
}
|
||
}
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** Check the gamma vectors we got back and limit if necessary
|
||
* @param s - pointer to the scanner specific structure
|
||
* @return nothing
|
||
*/
|
||
static void checkGammaSettings( Plustek_Scanner *s )
|
||
{
|
||
int i, j;
|
||
|
||
for( i = 0; i < 4 ; i++ ) {
|
||
for( j = 0; j < s->gamma_length; j++ ) {
|
||
if( s->gamma_table[i][j] > s->gamma_range.max ) {
|
||
s->gamma_table[i][j] = s->gamma_range.max;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/** initialize the options for the backend according to the device we have
|
||
*/
|
||
static SANE_Status init_options( Plustek_Scanner *s )
|
||
{
|
||
int i;
|
||
|
||
memset( s->opt, 0, sizeof(s->opt));
|
||
|
||
for( i = 0; i < NUM_OPTIONS; ++i ) {
|
||
s->opt[i].size = sizeof (SANE_Word);
|
||
s->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
|
||
}
|
||
|
||
s->opt[OPT_NUM_OPTS].name = SANE_NAME_NUM_OPTIONS;
|
||
s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
|
||
s->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
|
||
s->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
|
||
s->opt[OPT_NUM_OPTS].unit = SANE_UNIT_NONE;
|
||
s->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
|
||
s->opt[OPT_NUM_OPTS].constraint_type = SANE_CONSTRAINT_NONE;
|
||
s->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
|
||
|
||
/* "Scan Mode" group: */
|
||
s->opt[OPT_MODE_GROUP].name = "scanmode-group";
|
||
s->opt[OPT_MODE_GROUP].title = SANE_I18N("Scan Mode");
|
||
s->opt[OPT_MODE_GROUP].desc = "";
|
||
s->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
|
||
s->opt[OPT_MODE_GROUP].cap = 0;
|
||
|
||
/* scan mode */
|
||
s->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
|
||
s->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
|
||
s->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
|
||
s->opt[OPT_MODE].type = SANE_TYPE_STRING;
|
||
s->opt[OPT_MODE].size = 32;
|
||
s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
|
||
|
||
if( _ASIC_IS_USB == s->hw->caps.AsicID ) {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_usb_list;
|
||
s->val[OPT_MODE].w = 3; /* Color */
|
||
|
||
} else {
|
||
if((_ASIC_IS_98001 == s->hw->caps.AsicID) ||
|
||
(_ASIC_IS_98003 == s->hw->caps.AsicID)) {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_9800x_list;
|
||
} else {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_list;
|
||
}
|
||
s->val[OPT_MODE].w = 3; /* Color */
|
||
}
|
||
|
||
/* scan source */
|
||
s->opt[OPT_EXT_MODE].name = SANE_NAME_SCAN_SOURCE;
|
||
s->opt[OPT_EXT_MODE].title = SANE_TITLE_SCAN_SOURCE;
|
||
s->opt[OPT_EXT_MODE].desc = SANE_DESC_SCAN_SOURCE;
|
||
s->opt[OPT_EXT_MODE].type = SANE_TYPE_STRING;
|
||
s->opt[OPT_EXT_MODE].size = 32;
|
||
s->opt[OPT_EXT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
|
||
s->opt[OPT_EXT_MODE].constraint.string_list = ext_mode_list;
|
||
s->val[OPT_EXT_MODE].w = 0; /* Normal */
|
||
|
||
/* halftone */
|
||
s->opt[OPT_HALFTONE].name = SANE_NAME_HALFTONE_PATTERN;
|
||
s->opt[OPT_HALFTONE].title = SANE_TITLE_HALFTONE;
|
||
s->opt[OPT_HALFTONE].desc = SANE_DESC_HALFTONE_PATTERN;
|
||
s->opt[OPT_HALFTONE].type = SANE_TYPE_STRING;
|
||
s->opt[OPT_HALFTONE].size = 32;
|
||
s->opt[OPT_HALFTONE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
|
||
s->opt[OPT_HALFTONE].constraint.string_list = halftone_list;
|
||
s->val[OPT_HALFTONE].w = 0; /* Standard dithermap */
|
||
s->opt[OPT_HALFTONE].cap |= SANE_CAP_INACTIVE;
|
||
|
||
/* brightness */
|
||
s->opt[OPT_BRIGHTNESS].name = SANE_NAME_BRIGHTNESS;
|
||
s->opt[OPT_BRIGHTNESS].title = SANE_TITLE_BRIGHTNESS;
|
||
s->opt[OPT_BRIGHTNESS].desc = SANE_DESC_BRIGHTNESS;
|
||
s->opt[OPT_BRIGHTNESS].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_PERCENT;
|
||
s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_BRIGHTNESS].constraint.range = &percentage_range;
|
||
s->val[OPT_BRIGHTNESS].w = 0;
|
||
|
||
/* contrast */
|
||
s->opt[OPT_CONTRAST].name = SANE_NAME_CONTRAST;
|
||
s->opt[OPT_CONTRAST].title = SANE_TITLE_CONTRAST;
|
||
s->opt[OPT_CONTRAST].desc = SANE_DESC_CONTRAST;
|
||
s->opt[OPT_CONTRAST].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_CONTRAST].unit = SANE_UNIT_PERCENT;
|
||
s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_CONTRAST].constraint.range = &percentage_range;
|
||
s->val[OPT_CONTRAST].w = 0;
|
||
|
||
/* resolution */
|
||
s->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
|
||
s->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
|
||
s->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
|
||
s->opt[OPT_RESOLUTION].type = SANE_TYPE_INT;
|
||
s->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
|
||
|
||
s->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_RESOLUTION].constraint.range = &s->hw->dpi_range;
|
||
s->val[OPT_RESOLUTION].w = s->hw->dpi_range.min;
|
||
|
||
/* custom-gamma table */
|
||
s->opt[OPT_CUSTOM_GAMMA].name = SANE_NAME_CUSTOM_GAMMA;
|
||
s->opt[OPT_CUSTOM_GAMMA].title = SANE_TITLE_CUSTOM_GAMMA;
|
||
s->opt[OPT_CUSTOM_GAMMA].desc = SANE_DESC_CUSTOM_GAMMA;
|
||
s->opt[OPT_CUSTOM_GAMMA].type = SANE_TYPE_BOOL;
|
||
s->val[OPT_CUSTOM_GAMMA].w = SANE_FALSE;
|
||
|
||
/* preview */
|
||
s->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
|
||
s->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
|
||
s->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
|
||
s->opt[OPT_PREVIEW].cap = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT;
|
||
s->val[OPT_PREVIEW].w = 0;
|
||
|
||
/* "Geometry" group: */
|
||
s->opt[OPT_GEOMETRY_GROUP].name = "geometry-group";
|
||
s->opt[OPT_GEOMETRY_GROUP].title = SANE_I18N("Geometry");
|
||
s->opt[OPT_GEOMETRY_GROUP].desc = "";
|
||
s->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
|
||
s->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
|
||
|
||
/* top-left x */
|
||
s->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
|
||
s->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
|
||
s->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
|
||
s->opt[OPT_TL_X].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_TL_X].unit = SANE_UNIT_MM;
|
||
s->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_TL_X].constraint.range = &s->hw->x_range;
|
||
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TLX);
|
||
|
||
/* top-left y */
|
||
s->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
|
||
s->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
|
||
s->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
|
||
s->opt[OPT_TL_Y].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
|
||
s->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_TL_Y].constraint.range = &s->hw->y_range;
|
||
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TLY);
|
||
|
||
/* bottom-right x */
|
||
s->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
|
||
s->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
|
||
s->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
|
||
s->opt[OPT_BR_X].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_BR_X].unit = SANE_UNIT_MM;
|
||
s->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_BR_X].constraint.range = &s->hw->x_range;
|
||
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_BRX);
|
||
|
||
/* bottom-right y */
|
||
s->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
|
||
s->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
|
||
s->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
|
||
s->opt[OPT_BR_Y].type = SANE_TYPE_FIXED;
|
||
s->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
|
||
s->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->opt[OPT_BR_Y].constraint.range = &s->hw->y_range;
|
||
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_BRY);
|
||
|
||
/* "Enhancement" group: */
|
||
s->opt[OPT_ENHANCEMENT_GROUP].title = SANE_I18N("Enhancement");
|
||
s->opt[OPT_ENHANCEMENT_GROUP].desc = "";
|
||
s->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
|
||
s->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
|
||
s->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
|
||
|
||
initGammaSettings( s );
|
||
|
||
/* grayscale gamma vector */
|
||
s->opt[OPT_GAMMA_VECTOR].name = SANE_NAME_GAMMA_VECTOR;
|
||
s->opt[OPT_GAMMA_VECTOR].title = SANE_TITLE_GAMMA_VECTOR;
|
||
s->opt[OPT_GAMMA_VECTOR].desc = SANE_DESC_GAMMA_VECTOR;
|
||
s->opt[OPT_GAMMA_VECTOR].type = SANE_TYPE_INT;
|
||
s->opt[OPT_GAMMA_VECTOR].unit = SANE_UNIT_NONE;
|
||
s->opt[OPT_GAMMA_VECTOR].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->val[OPT_GAMMA_VECTOR].wa = &(s->gamma_table[0][0]);
|
||
s->opt[OPT_GAMMA_VECTOR].constraint.range = &(s->gamma_range);
|
||
s->opt[OPT_GAMMA_VECTOR].size = s->gamma_length * sizeof(SANE_Word);
|
||
|
||
/* red gamma vector */
|
||
s->opt[OPT_GAMMA_VECTOR_R].name = SANE_NAME_GAMMA_VECTOR_R;
|
||
s->opt[OPT_GAMMA_VECTOR_R].title = SANE_TITLE_GAMMA_VECTOR_R;
|
||
s->opt[OPT_GAMMA_VECTOR_R].desc = SANE_DESC_GAMMA_VECTOR_R;
|
||
s->opt[OPT_GAMMA_VECTOR_R].type = SANE_TYPE_INT;
|
||
s->opt[OPT_GAMMA_VECTOR_R].unit = SANE_UNIT_NONE;
|
||
s->opt[OPT_GAMMA_VECTOR_R].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->val[OPT_GAMMA_VECTOR_R].wa = &(s->gamma_table[1][0]);
|
||
s->opt[OPT_GAMMA_VECTOR_R].constraint.range = &(s->gamma_range);
|
||
s->opt[OPT_GAMMA_VECTOR_R].size = s->gamma_length * sizeof(SANE_Word);
|
||
|
||
/* green gamma vector */
|
||
s->opt[OPT_GAMMA_VECTOR_G].name = SANE_NAME_GAMMA_VECTOR_G;
|
||
s->opt[OPT_GAMMA_VECTOR_G].title = SANE_TITLE_GAMMA_VECTOR_G;
|
||
s->opt[OPT_GAMMA_VECTOR_G].desc = SANE_DESC_GAMMA_VECTOR_G;
|
||
s->opt[OPT_GAMMA_VECTOR_G].type = SANE_TYPE_INT;
|
||
s->opt[OPT_GAMMA_VECTOR_G].unit = SANE_UNIT_NONE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->val[OPT_GAMMA_VECTOR_G].wa = &(s->gamma_table[2][0]);
|
||
s->opt[OPT_GAMMA_VECTOR_G].constraint.range = &(s->gamma_range);
|
||
s->opt[OPT_GAMMA_VECTOR_G].size = s->gamma_length * sizeof(SANE_Word);
|
||
|
||
/* blue gamma vector */
|
||
s->opt[OPT_GAMMA_VECTOR_B].name = SANE_NAME_GAMMA_VECTOR_B;
|
||
s->opt[OPT_GAMMA_VECTOR_B].title = SANE_TITLE_GAMMA_VECTOR_B;
|
||
s->opt[OPT_GAMMA_VECTOR_B].desc = SANE_DESC_GAMMA_VECTOR_B;
|
||
s->opt[OPT_GAMMA_VECTOR_B].type = SANE_TYPE_INT;
|
||
s->opt[OPT_GAMMA_VECTOR_B].unit = SANE_UNIT_NONE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].constraint_type = SANE_CONSTRAINT_RANGE;
|
||
s->val[OPT_GAMMA_VECTOR_B].wa = &(s->gamma_table[3][0]);
|
||
s->opt[OPT_GAMMA_VECTOR_B].constraint.range = &(s->gamma_range);
|
||
s->opt[OPT_GAMMA_VECTOR_B].size = s->gamma_length * sizeof(SANE_Word);
|
||
|
||
/* GAMMA stuff is disabled per default */
|
||
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
||
|
||
/* disable extended mode list for devices without TPA */
|
||
if( 0 == (s->hw->caps.dwFlag & SFLAG_TPA)) {
|
||
s->opt[OPT_EXT_MODE].cap |= SANE_CAP_INACTIVE;
|
||
}
|
||
|
||
/* disable custom gamma, if not supported by the driver... */
|
||
if( 0 == (s->hw->caps.dwFlag & SFLAG_CUSTOM_GAMMA)) {
|
||
s->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
|
||
}
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** Function to retrieve the vendor and product id from a given string
|
||
* @param src - string, that should be investigated
|
||
* @param dest - pointer to a string to receive the USB ID
|
||
*/
|
||
static void decodeUsbIDs( char *src, char **dest )
|
||
{
|
||
const char *name;
|
||
char *tmp = *dest;
|
||
|
||
if( isspace(src[5])) {
|
||
strncpy( tmp, &src[6], (strlen(src)-6));
|
||
tmp[(strlen(src)-6)] = '\0';
|
||
}
|
||
|
||
name = tmp;
|
||
name = sanei_config_skip_whitespace( name );
|
||
|
||
if( '\0' == name[0] ) {
|
||
DBG( _DBG_SANE_INIT, "next device is a USB device (autodetection)\n" );
|
||
} else {
|
||
|
||
u_short pi = 0, vi = 0;
|
||
|
||
if( *name ) {
|
||
|
||
name = sanei_config_get_string( name, &tmp );
|
||
if( tmp ) {
|
||
vi = strtol( tmp, 0, 0 );
|
||
free( tmp );
|
||
}
|
||
}
|
||
|
||
name = sanei_config_skip_whitespace( name );
|
||
if( *name ) {
|
||
|
||
name = sanei_config_get_string( name, &tmp );
|
||
if( tmp ) {
|
||
pi = strtol( tmp, 0, 0 );
|
||
free( tmp );
|
||
}
|
||
}
|
||
|
||
/* create what we need to go through our device list...*/
|
||
sprintf( *dest, "0x%04X-0x%04X", vi, pi );
|
||
DBG( _DBG_SANE_INIT, "next device is a USB device (%s)\n", *dest );
|
||
}
|
||
}
|
||
|
||
#define _INT 0
|
||
#define _FLOAT 1
|
||
|
||
/** function to decode an value and give it back to the caller.
|
||
* @param src - pointer to the source string to check
|
||
* @param opt - string that keeps the option name to check src for
|
||
* @param what - _FLOAT or _INT
|
||
* @param result - pointer to the var that should receive our result
|
||
* @param def - default value that result should be in case of any error
|
||
* @return The function returns SANE_TRUE if the option has been found,
|
||
* if not, it returns SANE_FALSE
|
||
*/
|
||
static SANE_Bool decodeVal( char *src, char *opt,
|
||
int what, void *result, void *def )
|
||
{
|
||
char *tmp, *tmp2;
|
||
const char *name;
|
||
|
||
/* skip the option string */
|
||
name = (const char*)&src[strlen("option")];
|
||
|
||
/* get the name of the option */
|
||
name = sanei_config_get_string( name, &tmp );
|
||
|
||
if( tmp ) {
|
||
|
||
/* on success, compare wiht the given one */
|
||
if( 0 == strcmp( tmp, opt )) {
|
||
|
||
DBG( _DBG_SANE_INIT, "Decoding option >%s<\n", opt );
|
||
|
||
if( _INT == what ) {
|
||
|
||
/* assign the default value for this option... */
|
||
*((int*)result) = *((int*)def);
|
||
|
||
if( *name ) {
|
||
|
||
/* get the configuration value and decode it */
|
||
name = sanei_config_get_string( name, &tmp2 );
|
||
|
||
if( tmp2 ) {
|
||
*((int*)result) = strtol( tmp2, 0, 0 );
|
||
free( tmp2 );
|
||
}
|
||
}
|
||
free( tmp );
|
||
return SANE_TRUE;
|
||
|
||
} else if( _FLOAT == what ) {
|
||
|
||
/* assign the default value for this option... */
|
||
*((double*)result) = *((double*)def);
|
||
|
||
if( *name ) {
|
||
|
||
/* get the configuration value and decode it */
|
||
name = sanei_config_get_string( name, &tmp2 );
|
||
|
||
if( tmp2 ) {
|
||
*((double*)result) = strtod( tmp2, 0 );
|
||
free( tmp2 );
|
||
}
|
||
}
|
||
free( tmp );
|
||
return SANE_TRUE;
|
||
}
|
||
}
|
||
free( tmp );
|
||
}
|
||
|
||
return SANE_FALSE;
|
||
}
|
||
|
||
/** function to retrive the device name of a given string
|
||
* @param src - string that keeps the option name to check src for
|
||
* @param dest - pointer to the string, that should receive the detected
|
||
* devicename
|
||
* @return The function returns SANE_TRUE if the devicename has been found,
|
||
* if not, it returns SANE_FALSE
|
||
*/
|
||
static SANE_Bool decodeDevName( char *src, char *dest )
|
||
{
|
||
char *tmp;
|
||
const char *name;
|
||
|
||
if( 0 == strncmp( "device", src, 6 )) {
|
||
|
||
name = (const char*)&src[strlen("device")];
|
||
name = sanei_config_skip_whitespace( name );
|
||
|
||
DBG( _DBG_SANE_INIT, "Decoding device name >%s<\n", name );
|
||
|
||
if( *name ) {
|
||
name = sanei_config_get_string( name, &tmp );
|
||
if( tmp ) {
|
||
|
||
strcpy( dest, tmp );
|
||
free( tmp );
|
||
return SANE_TRUE;
|
||
}
|
||
}
|
||
}
|
||
|
||
return SANE_FALSE;
|
||
}
|
||
|
||
/** attach a device to the backend
|
||
*/
|
||
static SANE_Status attach( const char *dev_name, pCnfDef cnf,
|
||
Plustek_Device **devp )
|
||
{
|
||
int cntr;
|
||
int result;
|
||
int handle;
|
||
SANE_Status status;
|
||
Plustek_Device *dev;
|
||
|
||
DBG( _DBG_SANE_INIT, "attach (%s, %p, %p)\n",
|
||
dev_name, (void *)cnf, (void *)devp);
|
||
|
||
/* already attached ?*/
|
||
for( dev = first_dev; dev; dev = dev->next ) {
|
||
|
||
if( 0 == strcmp( dev->sane.name, dev_name )) {
|
||
if( devp )
|
||
*devp = dev;
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
}
|
||
|
||
/* allocate some memory for the device */
|
||
dev = malloc( sizeof (*dev));
|
||
if( NULL == dev )
|
||
return SANE_STATUS_NO_MEM;
|
||
|
||
/* assign all the stuff we need fo this device... */
|
||
|
||
memset(dev, 0, sizeof (*dev));
|
||
|
||
dev->fd = -1;
|
||
dev->name = strdup(dev_name); /* hold it double to avoid */
|
||
dev->sane.name = dev->name; /* compiler warnings */
|
||
dev->sane.vendor = "Plustek";
|
||
dev->initialized = SANE_FALSE;
|
||
|
||
memcpy( &dev->adj, &cnf->adj, sizeof(AdjDef));
|
||
|
||
show_cnf( cnf );
|
||
|
||
if( PARPORT == cnf->porttype ) {
|
||
|
||
dev->sane.type = "parallel port flatbed scanner";
|
||
|
||
dev->open = ppDev_open;
|
||
dev->close = ppDev_close;
|
||
dev->getCaps = ppDev_getCaps;
|
||
dev->getLensInfo = ppDev_getLensInfo;
|
||
dev->getCropInfo = ppDev_getCropInfo;
|
||
dev->putImgInfo = ppDev_putImgInfo;
|
||
dev->setScanEnv = ppDev_setScanEnv;
|
||
dev->startScan = ppDev_startScan;
|
||
dev->stopScan = ppDev_stopScan;
|
||
dev->setMap = ppDev_setMap;
|
||
dev->readImage = ppDev_readImage;
|
||
dev->shutdown = NULL;
|
||
dev->readLine = NULL;
|
||
dev->prepare = NULL;
|
||
|
||
} else {
|
||
|
||
dev->sane.type = "USB flatbed scanner";
|
||
|
||
#ifdef _PLUSTEK_USB
|
||
dev->open = usbDev_open;
|
||
dev->close = usbDev_close;
|
||
dev->getCaps = usbDev_getCaps;
|
||
dev->getLensInfo = usbDev_getLensInfo;
|
||
dev->getCropInfo = usbDev_getCropInfo;
|
||
dev->putImgInfo = NULL;
|
||
dev->setScanEnv = usbDev_setScanEnv;
|
||
dev->startScan = usbDev_startScan;
|
||
dev->stopScan = usbDev_stopScan;
|
||
dev->setMap = usbDev_setMap;
|
||
dev->readImage = NULL;
|
||
dev->readLine = usbDev_readLine;
|
||
dev->prepare = usbDev_Prepare;
|
||
dev->shutdown = usbDev_shutdown;
|
||
|
||
strncpy( dev->usbId, cnf->usbId, _MAX_ID_LEN );
|
||
|
||
if( cnf->adj.warmup >= 0 )
|
||
dev->usbDev.dwWarmup = cnf->adj.warmup;
|
||
|
||
if( cnf->adj.lampOff >= 0 )
|
||
dev->usbDev.dwLampOnPeriod = cnf->adj.lampOff;
|
||
|
||
if( cnf->adj.lampOffOnEnd >= 0 )
|
||
dev->usbDev.bLampOffOnEnd = cnf->adj.lampOffOnEnd;
|
||
#else
|
||
free( dev->name );
|
||
free( dev );
|
||
DBG( _DBG_ERROR, "Portmode %u not supported\n", cnf->porttype );
|
||
return SANE_STATUS_INVAL;
|
||
#endif
|
||
}
|
||
|
||
|
||
/*
|
||
* go ahead and open the scanner device
|
||
*/
|
||
handle = drvopen( dev );
|
||
if( handle < 0 ) {
|
||
DBG( _DBG_ERROR,"open failed: %d\n", handle );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* okay, so assign the handle... */
|
||
dev->fd = handle;
|
||
|
||
result = dev->getCaps( dev );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->getCaps() failed(%d)\n", result);
|
||
dev->close(dev);
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
result = dev->getLensInfo( dev, &lens );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->getLensInfo() failed(%d)\n", result );
|
||
dev->close(dev);
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* did we fail on connection? */
|
||
if( _NO_BASE == dev->caps.wIOBase ) {
|
||
DBG( _DBG_ERROR, "failed to find Plustek scanner\n" );
|
||
dev->close(dev);
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
/* save the info we got from the driver */
|
||
DBG( _DBG_INFO, "Scanner information:\n" );
|
||
if( dev->caps.Model == MODEL_OP_USB ) {
|
||
|
||
#ifdef _PLUSTEK_USB
|
||
if( NULL != dev->usbDev.ModelStr )
|
||
dev->sane.model = dev->usbDev.ModelStr;
|
||
else
|
||
#endif
|
||
dev->sane.model = ModelStr[MODEL_OP_USB];
|
||
|
||
} else if( dev->caps.Model < MODEL_OP_USB ) {
|
||
|
||
dev->sane.model = ModelStr[dev->caps.Model];
|
||
} else {
|
||
|
||
dev->sane.model = ModelStr[0];
|
||
}
|
||
|
||
DBG( _DBG_INFO, "Vendor : %s\n", dev->sane.vendor );
|
||
DBG( _DBG_INFO, "Model : %s\n", dev->sane.model );
|
||
DBG( _DBG_INFO, "Asic : 0x%02x\n", dev->caps.AsicID );
|
||
DBG( _DBG_INFO, "Flags : 0x%08lx\n", dev->caps.dwFlag );
|
||
DBG( _DBG_INFO, "Version: 0x%08x\n", dev->caps.Version );
|
||
|
||
dev->max_x = dev->caps.wMaxExtentX*MM_PER_INCH/_MEASURE_BASE;
|
||
dev->max_y = dev->caps.wMaxExtentY*MM_PER_INCH/_MEASURE_BASE;
|
||
|
||
dev->res_list = (SANE_Int *)calloc(((lens.rDpiX.wMax -_DEF_DPI)/25 + 1),
|
||
sizeof (SANE_Int)); /* one more to avoid a buffer overflow */
|
||
|
||
if (NULL == dev->res_list) {
|
||
DBG( _DBG_ERROR, "alloc fail, resolution problem\n" );
|
||
dev->close(dev);
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
/* build up the resolution table */
|
||
dev->res_list_size = 0;
|
||
for( cntr = _DEF_DPI; cntr <= lens.rDpiX.wMax; cntr += 25 ) {
|
||
dev->res_list_size++;
|
||
dev->res_list[dev->res_list_size - 1] = (SANE_Int)cntr;
|
||
}
|
||
|
||
status = limitResolution( dev );
|
||
|
||
dev->fd = handle;
|
||
drvclose( dev );
|
||
|
||
DBG( _DBG_SANE_INIT, "attach: model = >%s<\n", dev->sane.model );
|
||
|
||
++num_devices;
|
||
dev->next = first_dev;
|
||
first_dev = dev;
|
||
|
||
if (devp)
|
||
*devp = dev;
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** function to preset a configuration structure
|
||
* @param cnf - pointer to the structure that should be initialized
|
||
*/
|
||
static void init_config_struct( pCnfDef cnf, SANE_Bool is_usb )
|
||
{
|
||
memset( cnf, 0, sizeof(CnfDef));
|
||
|
||
if( is_usb )
|
||
strcpy( cnf->devName, "auto" );
|
||
|
||
cnf->adj.warmup = -1;
|
||
cnf->adj.lampOff = -1;
|
||
cnf->adj.lampOffOnEnd = -1;
|
||
|
||
cnf->adj.posShadingY = -1;
|
||
cnf->adj.tpaShadingY = -1;
|
||
cnf->adj.negShadingY = -1;
|
||
cnf->adj.rgain = -1;
|
||
cnf->adj.ggain = -1;
|
||
cnf->adj.bgain = -1;
|
||
|
||
cnf->adj.graygamma = 1.0;
|
||
cnf->adj.rgamma = 1.0;
|
||
cnf->adj.ggamma = 1.0;
|
||
cnf->adj.bgamma = 1.0;
|
||
}
|
||
|
||
/** intialize the backend
|
||
*/
|
||
SANE_Status sane_init( SANE_Int *version_code, SANE_Auth_Callback authorize )
|
||
{
|
||
char str[PATH_MAX] = _DEFAULT_DEVICE;
|
||
CnfDef config;
|
||
size_t len;
|
||
FILE *fp;
|
||
|
||
DBG_INIT();
|
||
|
||
#ifdef _PLUSTEK_USB
|
||
sanei_usb_init();
|
||
sanei_lm983x_init();
|
||
#endif
|
||
|
||
#if defined PACKAGE && defined VERSION
|
||
DBG( _DBG_SANE_INIT, "Plustek backend V"BACKEND_VERSION", part of "
|
||
PACKAGE " " VERSION "\n");
|
||
#else
|
||
DBG( _DBG_INFO, "Plustek backend V"BACKEND_VERSION"\n" );
|
||
#endif
|
||
|
||
/* do some presettings... */
|
||
auth = authorize;
|
||
first_dev = NULL;
|
||
first_handle = NULL;
|
||
num_devices = 0;
|
||
|
||
/* initialize the configuration structure */
|
||
init_config_struct( &config, SANE_FALSE );
|
||
|
||
if( version_code != NULL )
|
||
*version_code = SANE_VERSION_CODE(V_MAJOR, V_MINOR, 0);
|
||
|
||
fp = sanei_config_open( PLUSTEK_CONFIG_FILE );
|
||
|
||
/* default to _DEFAULT_DEVICE instead of insisting on config file */
|
||
if( NULL == fp ) {
|
||
return attach(_DEFAULT_DEVICE, &config, 0);
|
||
}
|
||
|
||
while( sanei_config_read( str, sizeof(str), fp)) {
|
||
|
||
DBG( _DBG_SANE_INIT, ">%s<\n", str );
|
||
if( str[0] == '#') /* ignore line comments */
|
||
continue;
|
||
|
||
len = strlen(str);
|
||
if( 0 == len )
|
||
continue; /* ignore empty lines */
|
||
|
||
/* check for options */
|
||
if( 0 == strncmp(str, "option", 6)) {
|
||
|
||
int ival;
|
||
double dval;
|
||
|
||
ival = -1;
|
||
decodeVal( str, "warmup", _INT, &config.adj.warmup, &ival);
|
||
decodeVal( str, "lampOff", _INT, &config.adj.lampOff, &ival);
|
||
decodeVal( str, "lOffOnEnd", _INT, &config.adj.lampOffOnEnd,&ival);
|
||
decodeVal( str, "posShadingY",_INT, &config.adj.posShadingY,&ival);
|
||
decodeVal( str, "tpaShadingY",_INT, &config.adj.tpaShadingY,&ival);
|
||
decodeVal( str, "negShadingY",_INT, &config.adj.negShadingY,&ival);
|
||
decodeVal( str, "red_gain", _INT, &config.adj.rgain, &ival);
|
||
decodeVal( str, "green_gain", _INT, &config.adj.ggain, &ival);
|
||
decodeVal( str, "blue_gain", _INT, &config.adj.bgain, &ival);
|
||
|
||
ival = 0;
|
||
decodeVal( str, "enableTPA", _INT, &config.adj.enableTpa, &ival);
|
||
decodeVal( str, "skipCalibration",
|
||
_INT, &config.adj.skipCalibration,&ival);
|
||
decodeVal( str, "skipFine",
|
||
_INT, &config.adj.skipFine,&ival);
|
||
decodeVal( str, "skipFineWhite",
|
||
_INT, &config.adj.skipFineWhite,&ival);
|
||
decodeVal( str, "invertNegatives",
|
||
_INT, &config.adj.invertNegatives,&ival);
|
||
|
||
decodeVal( str, "posOffX", _INT, &config.adj.pos.x, &ival );
|
||
decodeVal( str, "posOffY", _INT, &config.adj.pos.y, &ival );
|
||
|
||
decodeVal( str, "negOffX", _INT, &config.adj.neg.x, &ival );
|
||
decodeVal( str, "negOffY", _INT, &config.adj.neg.y, &ival );
|
||
|
||
decodeVal( str, "tpaOffX", _INT, &config.adj.tpa.x, &ival );
|
||
decodeVal( str, "tpaOffY", _INT, &config.adj.tpa.y, &ival );
|
||
|
||
dval = 1.0;
|
||
decodeVal( str, "grayGamma", _FLOAT, &config.adj.graygamma,&dval);
|
||
decodeVal( str, "redGamma", _FLOAT, &config.adj.rgamma, &dval );
|
||
decodeVal( str, "greenGamma", _FLOAT, &config.adj.ggamma, &dval );
|
||
decodeVal( str, "blueGamma", _FLOAT, &config.adj.bgamma, &dval );
|
||
continue;
|
||
|
||
/* check for sections: */
|
||
} else if( 0 == strncmp( str, "[usb]", 5)) {
|
||
|
||
char *tmp;
|
||
|
||
/* new section, try and attach previous device */
|
||
if( config.devName[0] != '\0' )
|
||
attach( config.devName, &config, 0 );
|
||
|
||
/* re-initialize the configuration structure */
|
||
init_config_struct( &config, SANE_TRUE );
|
||
|
||
tmp = config.usbId;
|
||
decodeUsbIDs( str, &tmp );
|
||
|
||
config.porttype = USB;
|
||
DBG( _DBG_SANE_INIT, "next device is an USB device\n" );
|
||
continue;
|
||
|
||
} else if(( 0 == strncmp( str, "[parport]", 10))&&( '\0' == str[10])) {
|
||
|
||
/* new section, try and attach previous device */
|
||
if( config.devName[0] != '\0' )
|
||
attach( config.devName, &config, 0 );
|
||
|
||
/* re-initialize the configuration structure */
|
||
init_config_struct( &config, SANE_FALSE );
|
||
DBG( _DBG_SANE_INIT, "next device is a PARPORT device\n" );
|
||
continue;
|
||
|
||
} else if( SANE_TRUE == decodeDevName( str, config.devName )) {
|
||
continue;
|
||
}
|
||
|
||
/* ignore other stuff... */
|
||
DBG( _DBG_SANE_INIT, "ignoring >%s<\n", str );
|
||
}
|
||
fclose (fp);
|
||
|
||
/* try to attach the last device in the config file... */
|
||
if( config.devName[0] != '\0' )
|
||
attach( config.devName, &config, 0 );
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** cleanup the backend...
|
||
*/
|
||
void sane_exit( void )
|
||
{
|
||
Plustek_Device *dev, *next;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_exit\n" );
|
||
|
||
for( dev = first_dev; dev; ) {
|
||
|
||
next = dev->next;
|
||
|
||
/* call the shutdown function of each device... */
|
||
if( dev->shutdown )
|
||
dev->shutdown( dev );
|
||
|
||
/*
|
||
* we're doin' this to avoid compiler warnings as dev->sane.name
|
||
* is defined as const char*
|
||
*/
|
||
if( dev->sane.name )
|
||
free( dev->name );
|
||
|
||
if( dev->res_list )
|
||
free( dev->res_list );
|
||
free( dev );
|
||
|
||
dev = next;
|
||
}
|
||
|
||
if( devlist )
|
||
free( devlist );
|
||
|
||
/* call driver specific shutdown function... */
|
||
_DOWN();
|
||
|
||
devlist = NULL;
|
||
auth = NULL;
|
||
first_dev = NULL;
|
||
first_handle = NULL;
|
||
}
|
||
|
||
/** return a list of all devices
|
||
*/
|
||
SANE_Status sane_get_devices(const SANE_Device ***device_list,
|
||
SANE_Bool local_only )
|
||
{
|
||
int i;
|
||
Plustek_Device *dev;
|
||
|
||
DBG(_DBG_SANE_INIT, "sane_get_devices (%p, %ld)\n",
|
||
(void *)device_list, (long) local_only);
|
||
|
||
/* already called, so cleanup */
|
||
if( devlist )
|
||
free( devlist );
|
||
|
||
devlist = malloc((num_devices + 1) * sizeof (devlist[0]));
|
||
if ( NULL == devlist )
|
||
return SANE_STATUS_NO_MEM;
|
||
|
||
i = 0;
|
||
for (dev = first_dev; i < num_devices; dev = dev->next)
|
||
devlist[i++] = &dev->sane;
|
||
devlist[i++] = 0;
|
||
|
||
*device_list = devlist;
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** open the sane device
|
||
*/
|
||
SANE_Status sane_open( SANE_String_Const devicename, SANE_Handle* handle )
|
||
{
|
||
SANE_Status status;
|
||
Plustek_Device *dev;
|
||
Plustek_Scanner *s;
|
||
CnfDef config;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_open - %s\n", devicename );
|
||
|
||
if( devicename[0] ) {
|
||
for( dev = first_dev; dev; dev = dev->next ) {
|
||
if( strcmp( dev->sane.name, devicename ) == 0 )
|
||
break;
|
||
}
|
||
|
||
if( !dev ) {
|
||
|
||
memset( &config, 0, sizeof(CnfDef));
|
||
|
||
/* check if a valid parport-device is meant... */
|
||
status = attach( devicename, &config, &dev );
|
||
if( SANE_STATUS_GOOD != status ) {
|
||
|
||
/* check if a valid usb-device is meant... */
|
||
config.porttype = USB;
|
||
status = attach( devicename, &config, &dev );
|
||
if( SANE_STATUS_GOOD != status )
|
||
return status;
|
||
}
|
||
}
|
||
} else {
|
||
/* empty devicename -> use first device */
|
||
dev = first_dev;
|
||
}
|
||
|
||
if( !dev )
|
||
return SANE_STATUS_INVAL;
|
||
|
||
s = malloc (sizeof (*s));
|
||
if( NULL == s )
|
||
return SANE_STATUS_NO_MEM;
|
||
|
||
memset(s, 0, sizeof (*s));
|
||
s->pipe = -1;
|
||
s->hw = dev;
|
||
s->scanning = SANE_FALSE;
|
||
|
||
init_options(s);
|
||
|
||
/* insert newly opened handle into list of open handles: */
|
||
s->next = first_handle;
|
||
first_handle = s;
|
||
|
||
*handle = s;
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/**
|
||
*/
|
||
void sane_close (SANE_Handle handle)
|
||
{
|
||
Plustek_Scanner *prev, *s;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_close\n" );
|
||
|
||
/* remove handle from list of open handles: */
|
||
prev = 0;
|
||
|
||
for( s = first_handle; s; s = s->next ) {
|
||
if( s == handle )
|
||
break;
|
||
prev = s;
|
||
}
|
||
|
||
if (!s) {
|
||
DBG( _DBG_ERROR, "close: invalid handle %p\n", handle);
|
||
return;
|
||
}
|
||
|
||
close_pipe( s );
|
||
|
||
if( NULL != s->buf )
|
||
free(s->buf);
|
||
|
||
drvclose( s->hw );
|
||
|
||
if (prev)
|
||
prev->next = s->next;
|
||
else
|
||
first_handle = s->next;
|
||
|
||
free(s);
|
||
}
|
||
|
||
/** goes through a string list and returns the start-address of the string
|
||
* that has been found, or NULL on error
|
||
*/
|
||
static const SANE_String_Const *search_string_list(
|
||
const SANE_String_Const *list, SANE_String value )
|
||
{
|
||
while( *list != NULL && strcmp(value, *list) != 0 )
|
||
++list;
|
||
|
||
if( *list == NULL )
|
||
return NULL;
|
||
|
||
return list;
|
||
}
|
||
|
||
/** return or set the parameter values, also do some checks
|
||
*/
|
||
SANE_Status sane_control_option( SANE_Handle handle, SANE_Int option,
|
||
SANE_Action action, void *value,
|
||
SANE_Int * info)
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
SANE_Status status;
|
||
const SANE_String_Const *optval;
|
||
pModeParam mp;
|
||
int scanmode;
|
||
|
||
if ( s->scanning )
|
||
return SANE_STATUS_DEVICE_BUSY;
|
||
|
||
if((option < 0) || (option >= NUM_OPTIONS))
|
||
return SANE_STATUS_INVAL;
|
||
|
||
if( NULL != info )
|
||
*info = 0;
|
||
|
||
switch( action ) {
|
||
|
||
case SANE_ACTION_GET_VALUE:
|
||
switch (option) {
|
||
case OPT_PREVIEW:
|
||
case OPT_NUM_OPTS:
|
||
case OPT_RESOLUTION:
|
||
case OPT_TL_X:
|
||
case OPT_TL_Y:
|
||
case OPT_BR_X:
|
||
case OPT_BR_Y:
|
||
case OPT_CUSTOM_GAMMA:
|
||
*(SANE_Word *)value = s->val[option].w;
|
||
break;
|
||
|
||
case OPT_CONTRAST:
|
||
case OPT_BRIGHTNESS:
|
||
*(SANE_Word *)value =
|
||
(s->val[option].w << SANE_FIXED_SCALE_SHIFT);
|
||
break;
|
||
|
||
case OPT_MODE:
|
||
case OPT_EXT_MODE:
|
||
case OPT_HALFTONE:
|
||
strcpy ((char *) value,
|
||
s->opt[option].constraint.string_list[s->val[option].w]);
|
||
break;
|
||
|
||
/* word array options: */
|
||
case OPT_GAMMA_VECTOR:
|
||
case OPT_GAMMA_VECTOR_R:
|
||
case OPT_GAMMA_VECTOR_G:
|
||
case OPT_GAMMA_VECTOR_B:
|
||
memcpy( value, s->val[option].wa, s->opt[option].size );
|
||
break;
|
||
|
||
default:
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
break;
|
||
|
||
case SANE_ACTION_SET_VALUE:
|
||
status = sanei_constrain_value( s->opt + option, value, info );
|
||
if( SANE_STATUS_GOOD != status )
|
||
return status;
|
||
|
||
optval = NULL;
|
||
if( SANE_CONSTRAINT_STRING_LIST == s->opt[option].constraint_type ) {
|
||
|
||
optval = search_string_list( s->opt[option].constraint.string_list,
|
||
(char *) value);
|
||
if( NULL == optval )
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
switch (option) {
|
||
|
||
case OPT_RESOLUTION: {
|
||
int n;
|
||
int min_d = s->hw->res_list[s->hw->res_list_size - 1];
|
||
int v = *(SANE_Word *)value;
|
||
int best = v;
|
||
|
||
for( n = 0; n < s->hw->res_list_size; n++ ) {
|
||
int d = abs(v - s->hw->res_list[n]);
|
||
|
||
if( d < min_d ) {
|
||
min_d = d;
|
||
best = s->hw->res_list[n];
|
||
}
|
||
}
|
||
|
||
s->val[option].w = (SANE_Word)best;
|
||
|
||
if( v != best )
|
||
*(SANE_Word *)value = best;
|
||
|
||
if( NULL != info ) {
|
||
if( v != best )
|
||
*info |= SANE_INFO_INEXACT;
|
||
*info |= SANE_INFO_RELOAD_PARAMS;
|
||
}
|
||
break;
|
||
|
||
}
|
||
|
||
case OPT_PREVIEW:
|
||
case OPT_TL_X:
|
||
case OPT_TL_Y:
|
||
case OPT_BR_X:
|
||
case OPT_BR_Y:
|
||
s->val[option].w = *(SANE_Word *)value;
|
||
if( NULL != info )
|
||
*info |= SANE_INFO_RELOAD_PARAMS;
|
||
break;
|
||
|
||
case OPT_CUSTOM_GAMMA:
|
||
s->val[option].w = *(SANE_Word *)value;
|
||
if( NULL != info )
|
||
*info |= SANE_INFO_RELOAD_PARAMS | SANE_INFO_RELOAD_OPTIONS;
|
||
|
||
mp = getModeList( s );
|
||
scanmode = mp[s->val[OPT_MODE].w].scanmode;
|
||
|
||
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
||
|
||
if( SANE_TRUE == s->val[option].w ) {
|
||
|
||
if((scanmode == COLOR_256GRAY) ||
|
||
(scanmode == COLOR_GRAY16)) {
|
||
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
|
||
} else {
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
|
||
}
|
||
|
||
} else {
|
||
|
||
initGammaSettings( s );
|
||
|
||
if((scanmode == COLOR_256GRAY) ||
|
||
(scanmode == COLOR_GRAY16)) {
|
||
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
|
||
} else {
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case OPT_CONTRAST:
|
||
case OPT_BRIGHTNESS:
|
||
s->val[option].w =
|
||
((*(SANE_Word *)value) >> SANE_FIXED_SCALE_SHIFT);
|
||
break;
|
||
|
||
case OPT_MODE: {
|
||
|
||
int idx = (optval - mode_list);
|
||
|
||
if((_ASIC_IS_98001 == s->hw->caps.AsicID) ||
|
||
(_ASIC_IS_98003 == s->hw->caps.AsicID)) {
|
||
idx = optval - mode_9800x_list;
|
||
} else if( _ASIC_IS_USB == s->hw->caps.AsicID ) {
|
||
idx = optval - mode_usb_list;
|
||
}
|
||
|
||
mp = getModeList( s );
|
||
|
||
if( mp[idx].scanmode != COLOR_HALFTONE ){
|
||
s->opt[OPT_HALFTONE].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CUSTOM_GAMMA].cap &= ~SANE_CAP_INACTIVE;
|
||
} else {
|
||
s->opt[OPT_HALFTONE].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
|
||
}
|
||
|
||
if( mp[idx].scanmode == COLOR_BW ) {
|
||
s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
|
||
}
|
||
|
||
s->opt[OPT_GAMMA_VECTOR].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
||
|
||
if( s->val[OPT_CUSTOM_GAMMA].w &&
|
||
!(s->opt[OPT_CUSTOM_GAMMA].cap & SANE_CAP_INACTIVE)) {
|
||
|
||
if((mp[idx].scanmode == COLOR_256GRAY) ||
|
||
(mp[idx].scanmode == COLOR_GRAY16)) {
|
||
s->opt[OPT_GAMMA_VECTOR].cap &= ~SANE_CAP_INACTIVE;
|
||
} else {
|
||
s->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
|
||
s->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
|
||
}
|
||
}
|
||
|
||
if( NULL != info )
|
||
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
|
||
}
|
||
|
||
/* fall through to OPT_HALFTONE */
|
||
case OPT_HALFTONE:
|
||
s->val[option].w = optval - s->opt[option].constraint.string_list;
|
||
break;
|
||
|
||
case OPT_EXT_MODE: {
|
||
s->val[option].w = optval - s->opt[option].constraint.string_list;
|
||
|
||
/*
|
||
* change the area and mode_list when changing the source
|
||
*/
|
||
if( s->val[option].w == 0 ) {
|
||
|
||
s->hw->dpi_range.min = _DEF_DPI;
|
||
|
||
s->hw->x_range.max = SANE_FIX(s->hw->max_x);
|
||
s->hw->y_range.max = SANE_FIX(s->hw->max_y);
|
||
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TLX);
|
||
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TLY);
|
||
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_BRX);
|
||
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_BRY);
|
||
s->val[OPT_MODE].w = 3; /* COLOR_TRUE24 */
|
||
|
||
if((_ASIC_IS_98001 == s->hw->caps.AsicID) ||
|
||
(_ASIC_IS_98003 == s->hw->caps.AsicID)) {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_9800x_list;
|
||
} else if( _ASIC_IS_USB == s->hw->caps.AsicID ) {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_usb_list;
|
||
s->val[OPT_MODE].w = 3; /* COLOR_TRUE24 */
|
||
} else {
|
||
s->opt[OPT_MODE].constraint.string_list = mode_list;
|
||
}
|
||
|
||
} else {
|
||
|
||
s->hw->dpi_range.min = _TPAMinDpi;
|
||
|
||
if( s->val[option].w == 1 ) {
|
||
s->hw->x_range.max = SANE_FIX(_TP_X);
|
||
s->hw->y_range.max = SANE_FIX(_TP_Y);
|
||
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_TP_TLX);
|
||
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_TP_TLY);
|
||
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_TP_BRX);
|
||
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_TP_BRY);
|
||
|
||
} else {
|
||
s->hw->x_range.max = SANE_FIX(_NEG_X);
|
||
s->hw->y_range.max = SANE_FIX(_NEG_Y);
|
||
s->val[OPT_TL_X].w = SANE_FIX(_DEFAULT_NEG_TLX);
|
||
s->val[OPT_TL_Y].w = SANE_FIX(_DEFAULT_NEG_TLY);
|
||
s->val[OPT_BR_X].w = SANE_FIX(_DEFAULT_NEG_BRX);
|
||
s->val[OPT_BR_Y].w = SANE_FIX(_DEFAULT_NEG_BRY);
|
||
}
|
||
|
||
if( s->hw->caps.dwFlag & SFLAG_TPA ) {
|
||
|
||
if( _ASIC_IS_USB == s->hw->caps.AsicID )
|
||
s->opt[OPT_MODE].constraint.string_list =
|
||
&mode_usb_list[_TPAModeSupportMin];
|
||
else
|
||
s->opt[OPT_MODE].constraint.string_list =
|
||
&mode_9800x_list[_TPAModeSupportMin];
|
||
} else {
|
||
s->opt[OPT_MODE].constraint.string_list =
|
||
&mode_list[_TPAModeSupportMin];
|
||
}
|
||
s->val[OPT_MODE].w = 0; /* COLOR_24 is the default */
|
||
}
|
||
|
||
s->opt[OPT_HALFTONE].cap |= SANE_CAP_INACTIVE;
|
||
s->opt[OPT_CONTRAST].cap &= ~SANE_CAP_INACTIVE;
|
||
|
||
if( NULL != info )
|
||
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
|
||
break;
|
||
}
|
||
case OPT_GAMMA_VECTOR:
|
||
case OPT_GAMMA_VECTOR_R:
|
||
case OPT_GAMMA_VECTOR_G:
|
||
case OPT_GAMMA_VECTOR_B:
|
||
memcpy( s->val[option].wa, value, s->opt[option].size );
|
||
checkGammaSettings(s);
|
||
if( NULL != info )
|
||
*info |= SANE_INFO_RELOAD_PARAMS;
|
||
break;
|
||
|
||
default:
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
break;
|
||
|
||
|
||
default:
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** according to the option number, return a pointer to a descriptor
|
||
*/
|
||
const SANE_Option_Descriptor *
|
||
sane_get_option_descriptor( SANE_Handle handle, SANE_Int option )
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
|
||
if((option < 0) || (option >= NUM_OPTIONS))
|
||
return NULL;
|
||
|
||
return &(s->opt[option]);
|
||
}
|
||
|
||
/** return the current parameter settings
|
||
*/
|
||
SANE_Status sane_get_parameters( SANE_Handle handle, SANE_Parameters *params )
|
||
{
|
||
int ndpi;
|
||
pModeParam mp;
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
|
||
/* if we're calling from within, calc best guess
|
||
* do the same, if sane_get_parameters() is called
|
||
* by a frontend before sane_start() is called
|
||
*/
|
||
if((NULL == params) || (s->scanning != SANE_TRUE)) {
|
||
|
||
mp = getModeList( s );
|
||
|
||
memset( &s->params, 0, sizeof (SANE_Parameters));
|
||
|
||
ndpi = s->val[OPT_RESOLUTION].w;
|
||
|
||
s->params.pixels_per_line = SANE_UNFIX(s->val[OPT_BR_X].w -
|
||
s->val[OPT_TL_X].w) / MM_PER_INCH * ndpi;
|
||
|
||
s->params.lines = SANE_UNFIX( s->val[OPT_BR_Y].w -
|
||
s->val[OPT_TL_Y].w) / MM_PER_INCH * ndpi;
|
||
|
||
/* pixels_per_line seems to be 8 * n. */
|
||
/* s->params.pixels_per_line = s->params.pixels_per_line & ~7; debug only */
|
||
|
||
s->params.last_frame = SANE_TRUE;
|
||
s->params.depth = mp[s->val[OPT_MODE].w].depth;
|
||
|
||
if( mp[s->val[OPT_MODE].w].color ) {
|
||
s->params.format = SANE_FRAME_RGB;
|
||
s->params.bytes_per_line = 3 * s->params.pixels_per_line;
|
||
} else {
|
||
s->params.format = SANE_FRAME_GRAY;
|
||
if (s->params.depth == 1)
|
||
s->params.bytes_per_line = (s->params.pixels_per_line + 7) / 8;
|
||
else
|
||
s->params.bytes_per_line = s->params.pixels_per_line *
|
||
s->params.depth / 8;
|
||
}
|
||
|
||
/* if sane_get_parameters() was called before sane_start() */
|
||
/* pass new values to the caller */
|
||
if ((NULL != params) && (s->scanning != SANE_TRUE))
|
||
*params = s->params;
|
||
} else
|
||
*params = s->params;
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** initiate the scan process
|
||
*/
|
||
SANE_Status sane_start( SANE_Handle handle )
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *) handle;
|
||
pModeParam mp;
|
||
|
||
int result;
|
||
int ndpi;
|
||
int left, top;
|
||
int width, height;
|
||
int scanmode;
|
||
int fds[2];
|
||
StartScan start;
|
||
CropInfo crop;
|
||
ScanInfo sinfo;
|
||
SANE_Status status;
|
||
SANE_Word tmp;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_start\n" );
|
||
|
||
if( s->scanning ) {
|
||
return SANE_STATUS_DEVICE_BUSY;
|
||
}
|
||
|
||
status = sane_get_parameters (handle, NULL);
|
||
if (status != SANE_STATUS_GOOD) {
|
||
DBG( _DBG_ERROR, "sane_get_parameters failed\n" );
|
||
return status;
|
||
}
|
||
|
||
/*
|
||
* open the driver and get some information about the scanner
|
||
*/
|
||
s->hw->fd = drvopen( s->hw );
|
||
if( s->hw->fd < 0 ) {
|
||
DBG( _DBG_ERROR,"sane_start: open failed: %d\n", errno );
|
||
|
||
if( errno == EBUSY )
|
||
return SANE_STATUS_DEVICE_BUSY;
|
||
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
result = s->hw->getCaps( s->hw );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->getCaps() failed(%d)\n", result);
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
result = s->hw->getLensInfo( s->hw, &lens );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->getLensInfo() failed(%d)\n", result );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* did we fail on connection? */
|
||
if ( s->hw->caps.wIOBase == _NO_BASE ) {
|
||
DBG( _DBG_ERROR, "failed to find Plustek scanner\n" );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
/* All ready to go. Set image def and see what the scanner
|
||
* says for crop info.
|
||
*/
|
||
ndpi = s->val[OPT_RESOLUTION].w;
|
||
|
||
/* exchange the values as we can't deal with negative heights and so on...*/
|
||
tmp = s->val[OPT_TL_X].w;
|
||
if( tmp > s->val[OPT_BR_X].w ) {
|
||
DBG( _DBG_INFO, "exchanging BR-X - TL-X\n" );
|
||
s->val[OPT_TL_X].w = s->val[OPT_BR_X].w;
|
||
s->val[OPT_BR_X].w = tmp;
|
||
}
|
||
|
||
tmp = s->val[OPT_TL_Y].w;
|
||
if( tmp > s->val[OPT_BR_Y].w ) {
|
||
DBG( _DBG_INFO, "exchanging BR-Y - TL-Y\n" );
|
||
s->val[OPT_TL_Y].w = s->val[OPT_BR_Y].w;
|
||
s->val[OPT_BR_Y].w = tmp;
|
||
}
|
||
|
||
/* position and extent are always relative to 300 dpi */
|
||
left = (int)(SANE_UNFIX (s->val[OPT_TL_X].w)*(double)lens.rDpiX.wPhyMax/
|
||
(MM_PER_INCH*((double)lens.rDpiX.wPhyMax/300.0)));
|
||
top = (int)(SANE_UNFIX (s->val[OPT_TL_Y].w)*(double)lens.rDpiY.wPhyMax/
|
||
(MM_PER_INCH*((double)lens.rDpiY.wPhyMax/300.0)));
|
||
width = (int)(SANE_UNFIX (s->val[OPT_BR_X].w - s->val[OPT_TL_X].w) *
|
||
(double)lens.rDpiX.wPhyMax /
|
||
(MM_PER_INCH *((double)lens.rDpiX.wPhyMax/300.0)));
|
||
height = (int)(SANE_UNFIX (s->val[OPT_BR_Y].w - s->val[OPT_TL_Y].w) *
|
||
(double)lens.rDpiY.wPhyMax /
|
||
(MM_PER_INCH *((double)lens.rDpiY.wPhyMax/300.0)));
|
||
|
||
/*
|
||
* adjust mode list according to the model we use and the
|
||
* source we have
|
||
*/
|
||
mp = getModeList( s );
|
||
|
||
scanmode = mp[s->val[OPT_MODE].w].scanmode;
|
||
DBG( _DBG_INFO, "scanmode = %u\n", scanmode );
|
||
|
||
/* clear it out just in case */
|
||
memset (&sinfo, 0, sizeof(sinfo));
|
||
sinfo.ImgDef.xyDpi.x = ndpi;
|
||
sinfo.ImgDef.xyDpi.y = ndpi;
|
||
sinfo.ImgDef.crArea.x = left; /* offset from left edge to area you want to scan */
|
||
sinfo.ImgDef.crArea.y = top; /* offset from top edge to area you want to scan */
|
||
sinfo.ImgDef.crArea.cx = width; /* always relative to 300 dpi */
|
||
sinfo.ImgDef.crArea.cy = height;
|
||
sinfo.ImgDef.wDataType = scanmode;
|
||
|
||
/*
|
||
* CHECK: what about the 10 bit mode?
|
||
*/
|
||
if( COLOR_TRUE48 == scanmode )
|
||
sinfo.ImgDef.wBits = OUTPUT_12Bits;
|
||
else if( COLOR_TRUE32 == scanmode )
|
||
sinfo.ImgDef.wBits = OUTPUT_10Bits;
|
||
else
|
||
sinfo.ImgDef.wBits = OUTPUT_8Bits;
|
||
|
||
sinfo.ImgDef.dwFlag = SCANDEF_QualityScan;
|
||
|
||
switch( s->val[OPT_EXT_MODE].w ) {
|
||
case 1: sinfo.ImgDef.dwFlag |= SCANDEF_Transparency; break;
|
||
case 2: sinfo.ImgDef.dwFlag |= SCANDEF_Negative; break;
|
||
default: break;
|
||
}
|
||
|
||
sinfo.ImgDef.wLens = s->hw->caps.wLens;
|
||
|
||
/* only for parallel-port devices */
|
||
if( s->hw->putImgInfo ) {
|
||
result = s->hw->putImgInfo( s->hw, &sinfo.ImgDef );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->putImgInfo failed(%d)\n", result );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
} else {
|
||
|
||
memcpy( &(crop.ImgDef), &sinfo.ImgDef, sizeof(ImgDef));
|
||
|
||
}
|
||
|
||
result = s->hw->getCropInfo( s->hw, &crop );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->getCropInfo() failed(%d)\n", result );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* DataInf.dwAppPixelsPerLine = crop.dwPixelsPerLine; */
|
||
s->params.pixels_per_line = crop.dwPixelsPerLine;
|
||
s->params.bytes_per_line = crop.dwBytesPerLine;
|
||
s->params.lines = crop.dwLinesPerArea;
|
||
|
||
/* build a SCANINFO block and get ready to scan it */
|
||
sinfo.ImgDef.dwFlag |= (SCANDEF_BuildBwMap | SCANDEF_QualityScan);
|
||
|
||
/* remove that for preview scans (USB only) */
|
||
if( _ASIC_IS_USB == s->hw->caps.AsicID ) {
|
||
if( s->val[OPT_PREVIEW].w )
|
||
sinfo.ImgDef.dwFlag &= (~SCANDEF_QualityScan);
|
||
}
|
||
|
||
/* set adjustments for brightness and contrast */
|
||
sinfo.siBrightness = s->val[OPT_BRIGHTNESS].w;
|
||
sinfo.siContrast = s->val[OPT_CONTRAST].w;
|
||
sinfo.wDither = s->val[OPT_HALFTONE].w;
|
||
|
||
DBG( _DBG_SANE_INIT, "bright %i contrast %i\n", sinfo.siBrightness,
|
||
sinfo.siContrast);
|
||
|
||
result = s->hw->setScanEnv( s->hw, &sinfo );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->setEnv() failed(%d)\n", result );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* download gamma correction tables... */
|
||
if( scanmode <= COLOR_256GRAY || scanmode == COLOR_GRAY16 ) {
|
||
s->hw->setMap( s->hw, s->gamma_table[0], s->gamma_length, _MAP_MASTER);
|
||
} else {
|
||
s->hw->setMap( s->hw, s->gamma_table[1], s->gamma_length, _MAP_RED );
|
||
s->hw->setMap( s->hw, s->gamma_table[2], s->gamma_length, _MAP_GREEN );
|
||
s->hw->setMap( s->hw, s->gamma_table[3], s->gamma_length, _MAP_BLUE );
|
||
}
|
||
/* work-around for USB... */
|
||
start.dwLinesPerScan = s->params.lines;
|
||
|
||
result = s->hw->startScan( s->hw, &start );
|
||
if( result < 0 ) {
|
||
DBG( _DBG_ERROR, "dev->startScan() failed(%d)\n", result );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
DBG( _DBG_SANE_INIT, "dwflag = 0x%lx dwBytesPerLine = %ld, "
|
||
"dwLinesPerScan = %ld\n",
|
||
start.dwFlag, start.dwBytesPerLine, start.dwLinesPerScan);
|
||
|
||
s->buf = realloc( s->buf, (s->params.lines) * s->params.bytes_per_line );
|
||
if( NULL == s->buf ) {
|
||
DBG( _DBG_ERROR, "realloc failed\n" );
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_NO_MEM;
|
||
}
|
||
|
||
s->scanning = SANE_TRUE;
|
||
|
||
tsecs = (unsigned long)time(NULL);
|
||
DBG( _DBG_INFO, "TIME START\n" );
|
||
|
||
/*
|
||
* everything prepared, so start the child process and a pipe to communicate
|
||
* pipe --> fds[0]=read-fd, fds[1]=write-fd
|
||
*/
|
||
if( pipe(fds) < 0 ) {
|
||
DBG( _DBG_ERROR, "ERROR: could not create pipe\n" );
|
||
s->scanning = SANE_FALSE;
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* create reader routine as new process */
|
||
s->bytes_read = 0;
|
||
s->reader_pid = fork();
|
||
|
||
cancelRead = SANE_FALSE;
|
||
|
||
if( s->reader_pid < 0 ) {
|
||
DBG( _DBG_ERROR, "ERROR: could not create child process\n" );
|
||
s->scanning = SANE_FALSE;
|
||
s->hw->close( s->hw );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
/* reader_pid = 0 ===> child process */
|
||
if( 0 == s->reader_pid ) {
|
||
|
||
sigset_t ignore_set;
|
||
struct SIGACTION act;
|
||
|
||
DBG( _DBG_SANE_INIT, "reader process...\n" );
|
||
|
||
close(fds[0]);
|
||
|
||
sigfillset ( &ignore_set );
|
||
sigdelset ( &ignore_set, SIGTERM );
|
||
sigprocmask( SIG_SETMASK, &ignore_set, 0 );
|
||
|
||
memset ( &act, 0, sizeof (act));
|
||
sigaction( SIGTERM, &act, 0 );
|
||
|
||
status = reader_process( s, fds[1] );
|
||
|
||
DBG( _DBG_SANE_INIT, "reader process done, status = %i\n", status );
|
||
|
||
/* don't use exit() since that would run the atexit() handlers */
|
||
_exit( status );
|
||
}
|
||
|
||
signal( SIGCHLD, sig_chldhandler );
|
||
|
||
close(fds[1]);
|
||
s->pipe = fds[0];
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_start done\n" );
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** function to read the data from our child process
|
||
*/
|
||
SANE_Status sane_read( SANE_Handle handle, SANE_Byte *data,
|
||
SANE_Int max_length, SANE_Int *length )
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner*)handle;
|
||
ssize_t nread;
|
||
|
||
*length = 0;
|
||
|
||
/* here we read all data from the driver... */
|
||
nread = read( s->pipe, data, max_length );
|
||
DBG( _DBG_READ, "sane_read - read %ld bytes\n", (long)nread );
|
||
if (!(s->scanning)) {
|
||
return do_cancel( s, SANE_TRUE );
|
||
}
|
||
|
||
if( nread < 0 ) {
|
||
|
||
if( EAGAIN == errno ) {
|
||
|
||
/* if we already had red the picture, so it's okay and stop */
|
||
if( s->bytes_read ==
|
||
(unsigned long)(s->params.lines * s->params.bytes_per_line)) {
|
||
waitpid( s->reader_pid, 0, 0 );
|
||
s->reader_pid = -1;
|
||
drvclose( s->hw );
|
||
return close_pipe(s);
|
||
}
|
||
|
||
/* else force the frontend to try again*/
|
||
return SANE_STATUS_GOOD;
|
||
|
||
} else {
|
||
DBG( _DBG_ERROR, "ERROR: errno=%d\n", errno );
|
||
do_cancel( s, SANE_TRUE );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
}
|
||
|
||
*length = nread;
|
||
s->bytes_read += nread;
|
||
|
||
/* nothing red means that we're finished OR we had a problem...*/
|
||
if( 0 == nread ) {
|
||
|
||
drvclose( s->hw );
|
||
getReaderProcessExitCode( s );
|
||
|
||
if( SANE_STATUS_GOOD != s->exit_code ) {
|
||
close_pipe(s);
|
||
return s->exit_code;
|
||
}
|
||
return close_pipe(s);
|
||
}
|
||
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** cancel the scanning process
|
||
*/
|
||
void sane_cancel (SANE_Handle handle)
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_cancel\n" );
|
||
|
||
if( s->scanning )
|
||
do_cancel( s, SANE_FALSE );
|
||
}
|
||
|
||
/** set the pipe to blocking/non blocking mode
|
||
*/
|
||
SANE_Status sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_set_io_mode: non_blocking=%d\n",non_blocking );
|
||
|
||
if ( !s->scanning ) {
|
||
DBG( _DBG_ERROR, "ERROR: not scanning !\n" );
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
if( -1 == s->pipe ) {
|
||
DBG( _DBG_ERROR, "ERROR: not supported !\n" );
|
||
return SANE_STATUS_UNSUPPORTED;
|
||
}
|
||
|
||
if( fcntl (s->pipe, F_SETFL, non_blocking ? O_NONBLOCK : 0) < 0) {
|
||
DBG( _DBG_ERROR, "ERROR: can<61>t set to non-blocking mode !\n" );
|
||
return SANE_STATUS_IO_ERROR;
|
||
}
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_set_io_mode done\n" );
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/** return the descriptor if available
|
||
*/
|
||
SANE_Status sane_get_select_fd( SANE_Handle handle, SANE_Int * fd )
|
||
{
|
||
Plustek_Scanner *s = (Plustek_Scanner *)handle;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_get_select_fd\n" );
|
||
|
||
if( !s->scanning ) {
|
||
DBG( _DBG_ERROR, "ERROR: not scanning !\n" );
|
||
return SANE_STATUS_INVAL;
|
||
}
|
||
|
||
*fd = s->pipe;
|
||
|
||
DBG( _DBG_SANE_INIT, "sane_get_select_fd done\n" );
|
||
return SANE_STATUS_GOOD;
|
||
}
|
||
|
||
/* END PLUSTEK.C ............................................................*/
|