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Diffstat (limited to 'backend/hp5400.h')
| -rw-r--r-- | backend/hp5400.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/backend/hp5400.h b/backend/hp5400.h new file mode 100644 index 0000000..b0efb4f --- /dev/null +++ b/backend/hp5400.h @@ -0,0 +1,143 @@ +/* sane - Scanner Access Now Easy. + Copyright (C) 2003 Martijn van Oosterhout <kleptog@svana.org> + Copyright (C) 2003 Thomas Soumarmon <thomas.soumarmon@cogitae.net> + + Originally copied from HP3300 testtools. Original notice follows: + + Copyright (C) 2001 Bertrik Sikken (bertrik@zonnet.nl) + + 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. + + $Id$ +*/ + + +/* + Core HP5400 functions. +*/ + + +#ifndef _HP5400_H_ +#define _HP5400_H_ + +#include <unistd.h> + +#include "hp5400_xfer.h" /* for EScannerModel */ + +#define HW_DPI 300 /* horizontal resolution of hardware */ +#define HW_LPI 300 /* vertical resolution of hardware */ + +enum ScanType +{ + SCAN_TYPE_CALIBRATION, + SCAN_TYPE_PREVIEW, + SCAN_TYPE_NORMAL +}; + +/* In case we ever need to track multiple models */ +typedef struct +{ + char *pszVendor; + char *pszName; +} +TScannerModel; + +typedef struct +{ + /* transfer buffer */ + void *buffer; /* Pointer to memory allocated for buffer */ + int roff, goff, boff; /* Offset into buffer of rows to be copied *next* */ + int bufstart, bufend; /* What is currently the valid buffer */ + int bpp; /* Bytes per pixel per colour (1 or 2) */ + int linelength, pixels; /* Bytes per line from scanner */ + int transfersize; /* Number of bytes to transfer resulting image */ + int blksize; /* Size of blocks to pull from scanner */ + int buffersize; /* Size of the buffer */ +} +TDataPipe; + +typedef struct +{ + int iXferHandle; /* handle used for data transfer to HW */ + TDataPipe pipe; /* Pipe for data */ + + int iTopLeftX; /* in mm */ + int iTopLeftY; /* in mm */ + /* int iSensorSkew; *//* in units of 1/1200 inch */ + /* int iSkipLines; *//* lines of garbage to skip */ + /* int fReg07; *//* NIASH00019 */ + /* int fGamma16; *//* if TRUE, gamma entries are 16 bit */ +/* int iExpTime; */ + /* int iReversedHead; *//* Head is reversed */ + /* int iBufferSize; *//* Size of internal scan buffer */ +/* EScannerModel eModel; */ +} +THWParams; + +/* The scanner needs a Base DPI off which all it's calibration and + * offset/size parameters are based. For the time being this is the same as + * the iDpi but maybe we want it seperate. This is because while this field + * would have limited values (300,600,1200,2400) the x/y dpi can vary. The + * windows interface seems to allow 200dpi (though I've never tried it). We + * need to decide how these values are related to the HW coordinates. */ + + +typedef struct +{ + int iDpi; /* horizontal resolution */ + int iLpi; /* vertical resolution */ + int iTop; /* in HW coordinates (units HW_LPI) */ + int iLeft; /* in HW coordinates (units HW_LPI) */ + int iWidth; /* in HW coordinates (units HW_LPI) */ + int iHeight; /* in HW coordinates (units HW_LPI) */ + + int iBytesPerLine; /* Resulting bytes per line */ + int iLines; /* Resulting lines of image */ + int iLinesRead; /* Lines of image already read */ + + int iColourOffset; /* How far the colours are offset. Currently this is + * set by the caller. This doesn't seem to be + * necessary anymore since the scanner is doing it + * internally. Leave it for the time being as it + * may be needed later. */ +} +TScanParams; + + + +#endif /* NO _HP5400_H_ */ |