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sane-project-backends/backend/plustek.h

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/*.............................................................................
* Project : SANE library for Plustek flatbed scanners.
*.............................................................................
* File: plustek.h - definitions for the backend
*.............................................................................
*
* based on Kazuhiro Sasayama previous
* Work on plustek.[ch] file from the SANE package.
*
* original code taken from sane-0.71
* Copyright (C) 1997 Hypercore Software Design, Ltd.
* Copyright (C) 2000/2001 Gerhard Jaeger <g.jaeger@earthling.net>
* Last Update:
* Gerhard Jaeger <g.jaeger@earthling.net>
*.............................................................................
* History:
* 0.30 - initial version
* 0.31 - no changes
* 0.32 - no changes
* 0.33 - no changes
* 0.34 - moved some definitions and typedefs from plustek.c
* 0.35 - removed OPT_MODEL from options list
* added max_y to struct Plustek_Scan
* 0.36 - added reader_pid, pipe and bytes_read to struct Plustek_Scanner
* removed unused variables from struct Plustek_Scanner
* moved fd from struct Plustek_Scanner to Plustek_Device
* added next members to struct Plustek_Scanner and Plustek_Device
* 0.37 - added max_x to struct Plustek_Device
* 0.38 - added caps to struct Plustek_Device
* added exit code to struct Plustek_Scanner
* removed dropout stuff
* 0.39 - PORTTYPE enum
* added function pointers to control a scanner device
* (Parport and USB)
* 0.40 - added USB stuff
* 0.41 - added configuration stuff
*
*.............................................................................
*
* This file is part of the SANE package.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*
* As a special exception, the authors of SANE give permission for
* additional uses of the libraries contained in this release of SANE.
*
* The exception is that, if you link a SANE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. Your use of that executable is in no way restricted on
* account of linking the SANE library code into it.
*
* This exception does not, however, invalidate any other reasons why
* the executable file might be covered by the GNU General Public
* License.
*
* If you submit changes to SANE to the maintainers to be included in
* a subsequent release, you agree by submitting the changes that
* those changes may be distributed with this exception intact.
*
* If you write modifications of your own for SANE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*/
#ifndef __PLUSTEK_H__
#define __PLUSTEK_H__
/************************ some definitions ***********************************/
#define MM_PER_INCH 25.4
#define PLUSTEK_CONFIG_FILE "plustek.conf"
#ifndef PATH_MAX
# define PATH_MAX 1024
#endif
#define walloc(x) ( x *) malloc( sizeof( x) )
#define walloca(x) ( x *) alloca( sizeof( x) )
/*
* the default image size
*/
#define _DEFAULT_TLX 0 /* 0..216 mm */
#define _DEFAULT_TLY 0 /* 0..297 mm */
#define _DEFAULT_BRX 126 /* 0..216 mm*/
#define _DEFAULT_BRY 76.21 /* 0..297 mm */
#define _DEFAULT_TP_TLX 3.5 /* 0..42.3 mm */
#define _DEFAULT_TP_TLY 10.5 /* 0..43.1 mm */
#define _DEFAULT_TP_BRX 38.5 /* 0..42.3 mm */
#define _DEFAULT_TP_BRY 33.5 /* 0..43.1 mm */
#define _DEFAULT_NEG_TLX 1.5 /* 0..38.9 mm */
#define _DEFAULT_NEG_TLY 1.5 /* 0..29.6 mm */
#define _DEFAULT_NEG_BRX 37.5 /* 0..38.9 mm */
#define _DEFAULT_NEG_BRY 25.5 /* 0..29.6 mm */
/*
* image sizes for normal, transparent and negative modes
*/
#define _NORMAL_X 216.0
#define _NORMAL_Y 297.0
#define _TP_X ((double)_TPAPageWidth/300.0 * MM_PER_INCH)
#define _TP_Y ((double)_TPAPageHeight/300.0 * MM_PER_INCH)
#define _NEG_X ((double)_NegativePageWidth/300.0 * MM_PER_INCH)
#define _NEG_Y ((double)_NegativePageHeight/300.0 * MM_PER_INCH)
/************************ some structures ************************************/
enum {
OPT_NUM_OPTS = 0,
OPT_MODE_GROUP,
OPT_MODE,
OPT_EXT_MODE,
OPT_HALFTONE,
OPT_BRIGHTNESS,
OPT_CONTRAST,
OPT_RESOLUTION,
OPT_GEOMETRY_GROUP,
OPT_TL_X,
OPT_TL_Y,
OPT_BR_X,
OPT_BR_Y,
NUM_OPTIONS
};
/*
* to distinguish between parallelport and USB device
*/
typedef enum {
PARPORT = 0,
USB,
NUM_PORTTYPES
} PORTTYPE;
typedef struct Plustek_Device
{
struct Plustek_Device *next; /* pointer to next dev in list */
int fd; /* device handle */
char *name; /* (to avoid compiler warnings!)*/
SANE_Device sane; /* info struct */
SANE_Int max_x; /* max XY-extension of the scan-*/
SANE_Int max_y; /* area */
SANE_Range dpi_range; /* resolution range */
SANE_Range x_range; /* x-range of the scan-area */
SANE_Range y_range; /* y-range of the scan-area */
SANE_Int *res_list; /* to hold the available phys. */
SANE_Int res_list_size; /* resolution values */
ScannerCaps caps; /* caps reported by the driver */
AdjDef adj; /* for driver adjustment */
/**************************** USB-stuff **********************************/
char *usbId; /* pointer to Vendor and product*/
/* ID string (from conf) file */
#ifdef _PLUSTEK_USB
ScanDef scanning; /* here we hold all stuff for */
/* the USB-scanner */
DeviceDef usbDev;
#endif
/*
* each device we support may need other access functions...
*/
int (*open) ( const char*, void* );
int (*close) ( struct Plustek_Device* );
void (*shutdown) ( struct Plustek_Device* );
int (*getCaps) ( struct Plustek_Device* );
int (*getLensInfo)( struct Plustek_Device*, pLensInfo );
int (*getCropInfo)( struct Plustek_Device*, pCropInfo );
int (*putImgInfo) ( struct Plustek_Device*, pImgDef );
int (*setScanEnv) ( struct Plustek_Device*, pScanInfo );
int (*startScan) ( struct Plustek_Device*, pStartScan );
int (*stopScan) ( struct Plustek_Device*, int* );
int (*readImage) ( struct Plustek_Device*, SANE_Byte*, unsigned long );
} Plustek_Device, *pPlustek_Device;
typedef union
{
SANE_Word w;
SANE_Word *wa; /* word array */
SANE_String s;
} Option_Value;
typedef struct Plustek_Scanner
{
struct Plustek_Scanner *next;
pid_t reader_pid; /* process id of reader */
SANE_Status exit_code; /* status of the reader process */
int pipe; /* pipe to reader process */
unsigned long bytes_read; /* number of bytes currently read*/
Plustek_Device *hw; /* pointer to current device */
Option_Value val[NUM_OPTIONS];
SANE_Byte *buf; /* the image buffer */
SANE_Bool scanning; /* TRUE during scan-process */
SANE_Parameters params; /* for keeping the parameter */
SANE_Option_Descriptor opt[NUM_OPTIONS];
} Plustek_Scanner;
typedef const struct mode_param {
int color;
int depth;
int scanmode;
} ModeParam, *pModeParam;
/*
* for collecting configuration info...
*/
typedef struct {
char devName[PATH_MAX];
PORTTYPE porttype;
char usbId[20];
/* contains the stuff to adjust... */
AdjDef adj;
} CnfDef, *pCnfDef;
#endif /* guard __PLUSTEK_H__ */
/* END PLUSTEK.H.............................................................*/
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