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sane-project-backends/backend/u12.h

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/** @file u12.h
* @brief Definitions for the backend.
*
* Copyright (c) 2003-2004 Gerhard Jaeger <gerhard@gjaeger.de>
*
* History:
* - 0.01 - initial version
* - 0.02 - added scaling variables to struct u12d
* .
* <hr>
* 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.
* <hr>
*/
#ifndef __U12_H__
#define __U12_H__
#ifndef SANE_OPTION
/* for compatibility with older versions */
typedef union
{
SANE_Word w;
SANE_Word *wa; /* word array */
SANE_String s;
} Option_Value;
#endif
/************************ some definitions ***********************************/
#define U12_CONFIG_FILE "u12.conf"
#ifndef PATH_MAX
# define PATH_MAX 1024
#endif
#define _MM_PER_INCH 25.4
#define _MEASURE_BASE 300UL
#define _DEF_DPI 50
/** the default image
*/
#define _DEFAULT_TLX 0
#define _DEFAULT_TLY 0
#define _DEFAULT_BRX 126
#define _DEFAULT_BRY 76
#define _DEFAULT_TP_TLX 3.5
#define _DEFAULT_TP_TLY 10.5
#define _DEFAULT_TP_BRX 38.5
#define _DEFAULT_TP_BRY 33.5
#define _DEFAULT_NEG_TLX 1.5
#define _DEFAULT_NEG_TLY 1.5
#define _DEFAULT_NEG_BRX 37.5
#define _DEFAULT_NEG_BRY 25.5
/** image sizes for normal, transparent and negative modes
*/
#define _TPAPageWidth 500U
#define _TPAPageHeight 510U
#define _TPAMinDpi 150
#define _TPAModeSupportMin COLOR_TRUE24
#define _NegativePageWidth 460UL
#define _NegativePageHeight 350UL
#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)
/** scan modes
*/
#define COLOR_BW 0
#define COLOR_256GRAY 1
#define COLOR_TRUE24 2
#define COLOR_TRUE42 3
#define _VAR_NOT_USED(x) ((x)=(x))
/** usb id buffer
*/
#define _MAX_ID_LEN 20
/** Scanmodes
*/
#define _ScanMode_Color 0
#define _ScanMode_AverageOut 1 /* CCD averaged 2 pixels value for output*/
#define _ScanMode_Mono 2 /* not color mode */
/** Scansource + additional flags
*/
#define _SCANDEF_PREVIEW 0x00000001
#define _SCANDEF_Transparency 0x00000100
#define _SCANDEF_Negative 0x00000200
#define _SCANDEF_TPA (_SCANDEF_Transparency | _SCANDEF_Negative)
#define _SCANDEF_SCANNING 0x8000000
/** for Gamma tables
*/
#define _MAP_RED 0
#define _MAP_GREEN 1
#define _MAP_BLUE 2
#define _MAP_MASTER 3
/** the ASIC modes */
#define _PP_MODE_SPP 0
#define _PP_MODE_EPP 1
/************************ some structures ************************************/
enum {
OPT_NUM_OPTS = 0,
OPT_MODE_GROUP,
#ifdef ALL_MODES
OPT_MODE,
OPT_EXT_MODE,
#endif
OPT_RESOLUTION,
OPT_PREVIEW,
OPT_GEOMETRY_GROUP,
OPT_TL_X,
OPT_TL_Y,
OPT_BR_X,
OPT_BR_Y,
OPT_ENHANCEMENT_GROUP,
OPT_BRIGHTNESS,
OPT_CONTRAST,
OPT_CUSTOM_GAMMA,
OPT_GAMMA_VECTOR,
OPT_GAMMA_VECTOR_R,
OPT_GAMMA_VECTOR_G,
OPT_GAMMA_VECTOR_B,
NUM_OPTIONS
};
/** for adjusting the scanner settings
*/
typedef struct {
int lampOff;
int lampOffOnEnd;
int warmup;
/* for adjusting the default gamma settings */
double rgamma;
double ggamma;
double bgamma;
double graygamma;
/* for adjusting scan-area */
long upNormal;
long upPositive;
long upNegative;
long leftNormal;
} AdjDef, *pAdjDef;
/** for holding basic capabilities
*/
typedef struct {
unsigned short scanAreaX;
unsigned short scanAreaY;
unsigned long flag;
#if 0
RANGE rDataType; /* available scan modes */
unsigned short wMaxExtentX; /* scanarea width */
unsigned short wMaxExtentY; /* scanarea height */
#endif
} ScannerCaps, *pScannerCaps;
/** for defining the scanmodes
*/
typedef const struct mode_param
{
int color;
int depth;
int scanmode;
} ModeParam, *pModeParam;
/** Here we hold all device specific data
*/
typedef struct u12d
{
SANE_Bool initialized; /* device already initialized? */
struct u12d *next; /* pointer to next dev in list */
int fd; /* device handle */
int mode;
char *name; /* (to avoid compiler warnings!)*/
SANE_Device sane; /* info struct */
/* scan-area settings */
SANE_Int max_x; /* max XY-extension of the scan-*/
SANE_Int max_y; /* area */
SANE_Range x_range; /* x-range of the scan-area */
SANE_Range y_range; /* y-range of the scan-area */
/* resolution settings */
SANE_Int dpi_max_x; /* */
SANE_Int dpi_max_y; /* */
SANE_Range dpi_range; /* resolution range */
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 */
char usbId[_MAX_ID_LEN];/* to keep Vendor and product */
/* ID string (from conf) file */
/* our gamma tables */
SANE_Word gamma_table[4][4096];
SANE_Range gamma_range;
int gamma_length;
/* the shading section */
pFnDACOffs fnDarkOffset; /**< ... */
ShadingDef shade; /**< shading parameters */
/* */
SANE_Byte PCBID; /**< which version of the PCB */
/* motor control section */
SANE_Byte MotorID; /**< the type of the motor drivers */
SANE_Byte MotorPower; /**< how to drive the motor */
SANE_Bool f2003;
SANE_Byte XStepMono;
SANE_Byte XStepColor;
SANE_Byte XStepBack;
SANE_Bool f0_8_16;
SANE_Byte scanStates[_SCANSTATE_BYTES];
/* CCD section */
SANE_Byte CCDID; /**< what CCD do we have */
RegDef *CCDRegs; /**< pointer to the register descr */
u_short numCCDRegs; /**< number of values to write */
/* DAC section */
SANE_Byte DACType; /**< what DAC do we have */
RegDef *DACRegs; /**< pointer to DAC reg descr. */
u_short numDACRegs; /**< number of values to write */
pFnDACDark fnDACDark; /**< */
RGBByteDef RegDACOffset;
RGBByteDef RegDACGain;
ShadowRegs regs; /**< for holding ASIC register values */
DataInfo DataInf; /**< all static info about the current scan */
ScanInfo scan; /**< buffer and motor management during scan */
BufferDef bufs;
void *scaleBuf; /**< buffer for line scaling */
int scaleStep; /**< step size for line scaling */
int scaleIzoom; /**< factor for line scaling */
u_long ModelOriginY;
SANE_Byte ModelCtrl;
SANE_Bool Tpa; /**< do we have a TPA */
SANE_Byte Buttons; /**< number of buttons */
/* lamp control section */
SANE_Bool warmupNeeded;
SANE_Byte lastLampStatus; /**< for keeping the lamp status */
#ifdef HAVE_SETITIMER
struct itimerval saveSettings; /**< for lamp timer */
#endif
} U12_Device;
typedef struct u12s
{
struct u12s *next;
pid_t reader_pid; /* process id of reader */
SANE_Status exit_code; /* status of the reader process */
int r_pipe; /* pipe to reader process */
int w_pipe; /* pipe from reader process */
unsigned long bytes_read; /* number of bytes currently read*/
U12_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];
} U12_Scanner;
/** for collecting configuration info...
*/
typedef struct {
char devName[PATH_MAX];
char usbId[_MAX_ID_LEN];
/* contains the stuff to adjust... */
AdjDef adj;
} CnfDef, *pCnfDef;
#endif /* guard __U12_H__ */
/* END U12.H ................................................................*/
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