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Fixed a gamma table bug, fixed some color shifting problems, some cleanups.

DEVEL_2_0_BRANCH-1
Frank Zago 2002-03-03 09:14:49 +00:00
rodzic b94c5ea0b6
commit 3e8e7174bb
2 zmienionych plików z 439 dodań i 311 usunięć
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712
backend/sceptre.c
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38
backend/sceptre.h
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@ -44,7 +44,7 @@
$Id$ $Id$
*/ */
/* Commands supported by the Sceptre S120 scanner. */ /* Commands supported by the Sceptre S1200 scanner. */
#define SCSI_TEST_UNIT_READY 0x00 #define SCSI_TEST_UNIT_READY 0x00
#define SCSI_GET_STATUS 0x02 #define SCSI_GET_STATUS 0x02
#define SCSI_INQUIRY 0x12 #define SCSI_INQUIRY 0x12
@ -230,6 +230,9 @@ CDB;
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
#define MM_PER_INCH 25.4 #define MM_PER_INCH 25.4
#define length_quant SANE_UNFIX(SANE_FIX(MM_PER_INCH / 600))
#define mmToIlu(mm) ((mm) / length_quant)
#define iluToMm(ilu) ((ilu) * length_quant)
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
@ -300,24 +303,29 @@ typedef struct Sceptre_Scanner
/* Scanner infos. */ /* Scanner infos. */
SANE_Range x_range; SANE_Range x_range;
SANE_Range y_range; SANE_Range y_range;
SANE_Range x_dpi_range; SANE_Range resolution_range;
SANE_Range y_dpi_range;
/* SCSI handling */ /* SCSI handling */
size_t bufsize; /* usable size of the buffer, not the
* real size */
SANE_Byte *buffer; /* for SCSI transfer. */ SANE_Byte *buffer; /* for SCSI transfer. */
SANE_Byte *shift_buffer; /* for color shift */ size_t buffer_size; /* allocated size of buffer */
int shift_buffer_size; /* valid size in shift_buffer */
SANE_Byte *image; /* keep the current image there */ SANE_Byte *image; /* keep the current image there */
size_t image_size; /* allocated size of image */
size_t image_begin; /* first significant byte in image */ size_t image_begin; /* first significant byte in image */
size_t image_end; /* first free byte in image */ size_t image_end; /* first free byte in image */
int raster_size; /* size of a raster */
int raster_num; /* for colour scan, current raster read */
int raster_real; /* real number of raster in the
* scan. This is necessary since I
* don't know how to reliably compute
* the number of lines */
int line; /* current line of the scan */
/* Scanning handling. */ /* Scanning handling. */
int scanning; /* TRUE is a scan is running. */ int scanning; /* TRUE is a scan is running. */
int x_dpi; int resolution; /* scan resolution */
int y_dpi;
int x_tl; /* X top left */ int x_tl; /* X top left */
int y_tl; /* Y top left */ int y_tl; /* Y top left */
int x_br; /* X bottom right */ int x_br; /* X bottom right */
@ -326,13 +334,13 @@ typedef struct Sceptre_Scanner
int length; /* length of the scan area in mm */ int length; /* length of the scan area in mm */
enum enum
{ /* as per SCSI spec */ {
SCEPTRE_LINEART = 0, SCEPTRE_LINEART,
SCEPTRE_HALFTONE = 0, SCEPTRE_HALFTONE,
SCEPTRE_GRAYSCALE = 2, SCEPTRE_GRAYSCALE,
SCEPTRE_COLOR = 5 SCEPTRE_COLOR
} }
image_composition; scan_mode;
int depth; /* depth per color */ int depth; /* depth per color */
int halftone_param; /* haltone number, valid for SCEPTRE_HALFTONE */ int halftone_param; /* haltone number, valid for SCEPTRE_HALFTONE */