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/* sane - Scanner Access Now Easy.
This file (C) 1997 Ingo Schneider
This file is part of the SANE package.
SANE 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.
SANE 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 sane; see the file COPYING.
If not, see <https://www.gnu.org/licenses/>. */
#ifndef s9036_h
#define s9036_h
enum S9036_Option
{
OPT_NUM_OPTS = 0,
OPT_MODE_GROUP,
OPT_DEPTH,
OPT_RESOLUTION,
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,
OPT_BRIGHTNESS,
OPT_CONTRAST,
OPT_BRIGHT_ADJUST,
OPT_CONTR_ADJUST,
/* must come last: */
NUM_OPTIONS
};
typedef struct S9036_Device
{
struct S9036_Device *next;
SANE_Device sane;
SANE_Handle handle;
}
S9036_Device;
typedef struct S9036_Scanner
{
/* all the state needed to define a scan request: */
SANE_Option_Descriptor opt[NUM_OPTIONS];
SANE_Word val[NUM_OPTIONS];
/* Parsed option values and variables that are valid only during
actual scanning: */
SANE_Bool scanning;
SANE_Parameters params;
size_t bufsize; /* about SCSI_MAX_REQUEST_SIZE */
SANE_Byte *buffer; /* buffer of size 'bufsize' */
SANE_Byte *bufstart; /* Start of data for next read */
size_t in_buffer; /* bytes already in buffer */
int lines_in_scanner; /* Lines in scanner memory */
int lines_read; /* Total lines read for now */
int fd; /* SCSI filedescriptor */
/* scanner dependent/low-level state: */
S9036_Device *hw;
}
S9036_Scanner;
#endif /* s9036_h */
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