/* sane - Scanner Access Now Easy.
   Copyright (C) 2000 Jochen Eisinger <jochen.eisinger@gmx.net>
   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 mustek_pp_h
#define mustek_pp_h

#include <sys/types.h>
#include <sys/time.h>
#include <sane/sanei_debug.h>

/* #define for user authentification */
/* #undef	HAVE_AUTHORIZATION */

/* #define for invert option */
/* #undef	HAVE_INVERSION */

/* #define if you want to patch for ASIC 1505 */
/* #undef	PATCH_MUSTEK_PP_1505 */

#ifdef HAVE_AUTHORIZATION

#define MAX_LINE_LEN	512

  /* Here are the usernames and passwords stored
   * the file name is relative to SANE_CONFIG_DIR */
   
#define PASSWD_FILE	".auth"
#define SEPARATOR	':'

#define SALT		"je"

#endif

enum Mustek_PP_Option
{
  OPT_NUM_OPTS = 0,

  OPT_MODE_GROUP,
  OPT_MODE,
  OPT_RESOLUTION,
  OPT_PREVIEW,
  OPT_GRAY_PREVIEW,

  OPT_GEOMETRY_GROUP,
  OPT_TL_X,			/* top-left x */
  OPT_TL_Y,			/* top-left y */
  OPT_BR_X,			/* bottom-right x */
  OPT_BR_Y,			/* bottom-right y */

  OPT_ENHANCEMENT_GROUP,

#ifdef HAVE_INVERSION

  OPT_INVERT,

#endif
  OPT_CUSTOM_GAMMA,		/* use custom gamma tables? */
  /* The gamma vectors MUST appear in the order gray, red, green,
     blue.  */
  OPT_GAMMA_VECTOR,
  OPT_GAMMA_VECTOR_R,
  OPT_GAMMA_VECTOR_G,
  OPT_GAMMA_VECTOR_B,

  /* must come last: */
  NUM_OPTIONS
};

typedef union
{
  SANE_Word w;
  SANE_Word *wa;		/* word array */
  SANE_String s;
}
Option_Value;

typedef struct CCD_info
{
  int mode;
  int invert;
  /* how many positions to skip until scanable area starts */
  int skipcount;
  /* how many positions to skip until scan area starts */
  int skipimagebytes;	
  /* total skip, adjusted to resolution */
  int adjustskip;
  int res;
  int hwres;
  int res_step;
  int line_step;
  int channel;
}
CCD_Info;

typedef struct Mustek_PP_Descriptor
{
  SANE_Device sane;

  SANE_String port;

  SANE_Int max_res;
  SANE_Int max_h_size;
  SANE_Int max_v_size;
  unsigned int wait_bank;
  SANE_Int strip_height;
  long int buf_size;
  u_char asic;
  u_char ccd;
  int requires_auth;
  int wait_lamp;
}
Mustek_PP_Descriptor;

typedef struct Mustek_PP_Device
{
  struct Mustek_PP_Device *next;
  Mustek_PP_Descriptor *desc;

  int fd;

  CCD_Info CCD;
  CCD_Info Saved_CCD;

  SANE_Option_Descriptor opt[NUM_OPTIONS];
  Option_Value val[NUM_OPTIONS];
  SANE_Int gamma_table[4][256];

  int state;

  int TopX;
  int TopY;
  int BottomX;
  int BottomY;

  int asic_id;
  int ccd_type;

  time_t lamp_on;

  int image_control;
  int bank_count;
  int motor_phase;
  int motor_step;

  int line;
  int line_diff;
  int ccd_line;
  int lines_left;
  int max_lines;
  int redline;
  int blueline;

  int blackpos;

  int rdiff, gdiff, bdiff;

  SANE_Byte *calib_r;
  SANE_Byte *calib_g;
  SANE_Byte *calib_b;

  SANE_Byte ref_black, ref_red, ref_green, ref_blue;

  SANE_Byte *green;
  SANE_Byte **red;
  SANE_Byte **blue;

  int blue_offs;
  int green_offs;

  SANE_Byte *buf;
  long int bufsize, buflen;

  SANE_Parameters params;
  SANE_Range dpi_range;
  SANE_Range x_range;
  SANE_Range y_range;

}
Mustek_PP_Device;


#if (!defined __GNUC__ || __GNUC__ < 2 || \
     __GNUC_MINOR__ < (defined __cplusplus ? 6 : 4))

#define __PRETTY_FUNCTION__	"mustek_pp"

#endif

#define DEBUG()		DBG(4, "%s(v%d.%d.%d-%s): line %d: debug exception\n", \
			  __PRETTY_FUNCTION__, V_MAJOR, V_MINOR,	\
			  MUSTEK_PP_BUILD, MUSTEK_PP_STATE, __LINE__)

#define ASSERT(cond)	if (!(cond))					\
			  {						\
                            DEBUG();					\
			    DBG(1, "ASSERT(%s) failed\n", STRINGIFY(cond)); \
			    DBG(1, "expect disaster...\n");\
			  }

/* Please note: ASSERT won't go away if you define NDEBUG, it just won't
 * output a message when ASSERT failes. So if "cond" does anything, it will
 * be executed, even if NDEBUG is defined... 
 */


#endif /* mustek_pp_h */