kopia lustrzana https://gitlab.com/sane-project/backends
120 wiersze
3.8 KiB
C
120 wiersze
3.8 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2003 Martijn van Oosterhout <kleptog@svana.org>
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Originally copied from HP3300 testtools. Original notice follows:
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Copyright (C) 2001 Bertrik Sikken (bertrik@zonnet.nl)
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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$Id$
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*/
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/*
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Core HP5400 functions.
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*/
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#ifndef _HP5400_H_
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#define _HP5400_H_
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#include <unistd.h>
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#include "hp5400_xfer.h" /* for EScannerModel */
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#define HW_DPI 300 /* horizontal resolution of hardware */
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#define HW_LPI 300 /* vertical resolution of hardware */
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enum ScanType
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{
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SCAN_TYPE_CALIBRATION,
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SCAN_TYPE_PREVIEW,
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SCAN_TYPE_NORMAL
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};
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/* In case we ever need to track multiple models */
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typedef struct
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{
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char *pszVendor;
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char *pszName;
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}
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TScannerModel;
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typedef struct
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{
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/* transfer buffer */
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void *buffer; /* Pointer to memory allocated for buffer */
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int roff, goff, boff; /* Offset into buffer of rows to be copied *next* */
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int bufstart, bufend; /* What is currently the valid buffer */
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int bpp; /* Bytes per pixel per colour (1 or 2) */
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int linelength, pixels; /* Bytes per line from scanner */
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int transfersize; /* Number of bytes to transfer resulting image */
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int blksize; /* Size of blocks to pull from scanner */
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int buffersize; /* Size of the buffer */
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}
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TDataPipe;
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typedef struct
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{
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int iXferHandle; /* handle used for data transfer to HW */
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TDataPipe pipe; /* Pipe for data */
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int iTopLeftX; /* in mm */
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int iTopLeftY; /* in mm */
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/* int iSensorSkew; *//* in units of 1/1200 inch */
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/* int iSkipLines; *//* lines of garbage to skip */
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/* int fReg07; *//* NIASH00019 */
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/* int fGamma16; *//* if TRUE, gamma entries are 16 bit */
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/* int iExpTime; */
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/* int iReversedHead; *//* Head is reversed */
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/* int iBufferSize; *//* Size of internal scan buffer */
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/* EScannerModel eModel; */
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}
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THWParams;
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/* The scanner needs a Base DPI off which all it's calibration and
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* offset/size parameters are based. For the time being this is the same as
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* the iDpi but maybe we want it seperate. This is because while this field
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* would have limited values (300,600,1200,2400) the x/y dpi can vary. The
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* windows interface seems to allow 200dpi (though I've never tried it). We
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* need to decide how these values are related to the HW coordinates. */
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typedef struct
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{
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int iDpi; /* horizontal resolution */
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int iLpi; /* vertical resolution */
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int iTop; /* in HW coordinates (units HW_LPI) */
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int iLeft; /* in HW coordinates (units HW_LPI) */
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int iWidth; /* in HW coordinates (units HW_LPI) */
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int iHeight; /* in HW coordinates (units HW_LPI) */
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int iBytesPerLine; /* Resulting bytes per line */
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int iLines; /* Resulting lines of image */
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int iLinesRead; /* Lines of image already read */
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int iColourOffset; /* How far the colours are offset. Currently this is
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* set by the caller. This doesn't seem to be
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* necessary anymore since the scanner is doing it
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* internally. Leave it for the time being as it
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* may be needed later. */
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}
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TScanParams;
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#endif /* NO _HP5400_H_ */
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