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Diffstat (limited to 'backend/dmc.h')
| -rw-r--r-- | backend/dmc.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/backend/dmc.h b/backend/dmc.h new file mode 100644 index 0000000..aa866bc --- /dev/null +++ b/backend/dmc.h @@ -0,0 +1,125 @@ +/* sane - Scanner Access Now Easy. + Copyright (C) 1998 David F. Skoll + 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. */ + +/* $Id$ */ + +#ifndef polaroid_dmc_h +#define polaroid_dmc_h + +#include <sys/types.h> + +#define BYTES_PER_RAW_LINE 1599 + +typedef enum { + OPT_NUM_OPTS = 0, + + 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_MODE_GROUP, /* Image acquisition mode */ + OPT_IMAGE_MODE, /* Thumbnail, center cut or MFI'd image */ + OPT_ASA, /* ASA Settings */ + OPT_SHUTTER_SPEED, /* Shutter speed */ + OPT_WHITE_BALANCE, /* White balance */ + + /* must come last: */ + NUM_OPTIONS +} DMC_Option; + +typedef struct DMC_Device { + struct DMC_Device *next; + SANE_Device sane; + SANE_Range shutterSpeedRange; + unsigned int shutterSpeed; + int asa; + int whiteBalance; +} DMC_Device; + +typedef struct DMC_Camera { + /* all the state needed to define a scan request: */ + struct DMC_Camera *next; + + SANE_Option_Descriptor opt[NUM_OPTIONS]; + Option_Value val[NUM_OPTIONS]; + + SANE_Parameters params; + size_t bytes_to_read; + + SANE_Range tl_x_range; + SANE_Range tl_y_range; + SANE_Range br_x_range; + SANE_Range br_y_range; + + int imageMode; + + /* The DMC needs certain reads to be done in one chunk, meaning + we might have to buffer them. */ + char *readBuffer; + char *readPtr; + int inViewfinderMode; + int fd; /* SCSI filedescriptor */ + SANE_Byte currentRawLine[BYTES_PER_RAW_LINE]; + SANE_Byte nextRawLine[BYTES_PER_RAW_LINE]; + int nextRawLineValid; + + /* scanner dependent/low-level state: */ + DMC_Device *hw; +} DMC_Camera; + +/* We only support the following four imaging modes */ +#define IMAGE_MFI 0x0000 /* 801x600 filtered image */ +#define IMAGE_VIEWFINDER 0x0001 /* 270x201 viewfinder image */ +#define IMAGE_RAW 0x0002 /* 1599x600 raw image */ +#define IMAGE_THUMB 0x0003 /* 80x60 thumbnail image */ +#define IMAGE_SUPER_RES 0x0004 +#define NUM_IMAGE_MODES 5 + +#define ASA_25 0 +#define ASA_50 1 +#define ASA_100 2 + +#define WHITE_BALANCE_DAYLIGHT 0 +#define WHITE_BALANCE_INCANDESCENT 1 +#define WHITE_BALANCE_FLUORESCENT 2 + +#endif /* polaroid_dmc_h */ |