kopia lustrzana https://gitlab.com/sane-project/backends
417 wiersze
11 KiB
C
417 wiersze
11 KiB
C
/*.............................................................................
|
|
* Project : SANE library for Plustek flatbed scanners.
|
|
*.............................................................................
|
|
*/
|
|
|
|
/** @file plustek-usbcalfile.c
|
|
* @brief Functions for saving/restoring calibration settings
|
|
*
|
|
* Copyright (C) 2001-2003 Gerhard Jaeger <gerhard@gjaeger.de>
|
|
*
|
|
* History:
|
|
* - 0.46 - first version
|
|
* - 0.47 - no changes
|
|
* .
|
|
* <hr>
|
|
* 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.
|
|
* <hr>
|
|
*/
|
|
|
|
typedef struct {
|
|
u_long red_light_on;
|
|
u_long red_light_off;
|
|
u_long green_light_on;
|
|
u_long green_light_off;
|
|
u_long blue_light_on;
|
|
u_long blue_light_off;
|
|
u_long green_pwm_duty;
|
|
|
|
} LightCtrl, *pLightCtrl;
|
|
|
|
typedef struct {
|
|
u_short version;
|
|
|
|
u_short red_gain;
|
|
u_short green_gain;
|
|
u_short blue_gain;
|
|
|
|
u_short red_offs;
|
|
u_short green_offs;
|
|
u_short blue_offs;
|
|
|
|
LightCtrl light;
|
|
|
|
} CalData, *pCalData;
|
|
|
|
#define _PT_CF_VERSION 0x0001
|
|
|
|
/** function to read a text file and returns the string which starts which
|
|
* 'id' string.
|
|
* no duplicate entries where detected, always the first occurance will be
|
|
* red.
|
|
* @param fp - file pointer of file to read
|
|
* @param id - what to search for
|
|
* @param res - where to store the result upon success
|
|
* @return SANE_TRUE on success, SANE_FALSE on any error
|
|
*/
|
|
static SANE_Bool usb_ReadSpecLine( FILE *fp, char *id, char* res )
|
|
{
|
|
char tmp[1024];
|
|
char *ptr;
|
|
|
|
/* rewind file pointer */
|
|
if( 0 != fseek( fp, 0L, SEEK_SET)) {
|
|
DBG( _DBG_ERROR, "fseek: %s\n", strerror(errno));
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* roam through the file and examine each line... */
|
|
while( !feof( fp )) {
|
|
|
|
if( NULL != fgets( tmp, 1024, fp )) {
|
|
|
|
if( 0 == strncmp( tmp, id, strlen(id))) {
|
|
|
|
ptr = &tmp[strlen(id)];
|
|
if( '\0' == *ptr )
|
|
break;
|
|
|
|
strcpy( res, ptr );
|
|
res[strlen(res)-1] = '\0';
|
|
return SANE_TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static char *usb_ReadOtherLines( FILE *fp, char *except )
|
|
{
|
|
char tmp[1024];
|
|
char *ptr, *ptr_base;
|
|
int len;
|
|
|
|
if( 0 != fseek( fp, 0L, SEEK_END))
|
|
return NULL;
|
|
|
|
len = ftell(fp);
|
|
|
|
/* rewind file pointer */
|
|
if( 0 != fseek( fp, 0L, SEEK_SET))
|
|
return NULL;
|
|
|
|
if( len == 0 )
|
|
return NULL;
|
|
|
|
ptr = (char*)malloc(len);
|
|
if( NULL == ptr )
|
|
return NULL;
|
|
|
|
ptr_base = ptr;
|
|
*ptr = '\0';
|
|
/* roam through the file and examine each line... */
|
|
while( !feof( fp )) {
|
|
|
|
if( NULL != fgets( tmp, 1024, fp )) {
|
|
|
|
if( 0 == strncmp( tmp, "version=", 8 ))
|
|
continue;
|
|
|
|
if( 0 != strncmp( tmp, except, strlen(except))) {
|
|
|
|
if( strlen( tmp ) > 0 ) {
|
|
strcpy( ptr, tmp );
|
|
ptr += strlen(tmp);
|
|
*ptr = '\0';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return ptr_base;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void usb_RestoreCalData( pCalData cal )
|
|
{
|
|
a_bRegs[0x3b] = (u_char)cal->red_gain;
|
|
a_bRegs[0x3c] = (u_char)cal->green_gain;
|
|
a_bRegs[0x3d] = (u_char)cal->blue_gain;
|
|
a_bRegs[0x38] = (u_char)cal->red_offs;
|
|
a_bRegs[0x39] = (u_char)cal->green_offs;
|
|
a_bRegs[0x3a] = (u_char)cal->blue_offs;
|
|
|
|
a_bRegs[0x2a] = _HIBYTE((u_short)cal->light.green_pwm_duty);
|
|
a_bRegs[0x2b] = _LOBYTE((u_short)cal->light.green_pwm_duty);
|
|
|
|
a_bRegs[0x2c] = _HIBYTE((u_short)cal->light.red_light_on);
|
|
a_bRegs[0x2d] = _LOBYTE((u_short)cal->light.red_light_on);
|
|
a_bRegs[0x2e] = _HIBYTE((u_short)cal->light.red_light_off);
|
|
a_bRegs[0x2f] = _LOBYTE((u_short)cal->light.red_light_off);
|
|
|
|
a_bRegs[0x30] = _HIBYTE((u_short)cal->light.green_light_on);
|
|
a_bRegs[0x31] = _LOBYTE((u_short)cal->light.green_light_on);
|
|
a_bRegs[0x32] = _HIBYTE((u_short)cal->light.green_light_off);
|
|
a_bRegs[0x33] = _LOBYTE((u_short)cal->light.green_light_off);
|
|
|
|
a_bRegs[0x34] = _HIBYTE((u_short)cal->light.blue_light_on);
|
|
a_bRegs[0x35] = _LOBYTE((u_short)cal->light.blue_light_on);
|
|
a_bRegs[0x36] = _HIBYTE((u_short)cal->light.blue_light_off);
|
|
a_bRegs[0x37] = _LOBYTE((u_short)cal->light.blue_light_off);
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void usb_CreatePrefix( pPlustek_Device dev, char *pfx )
|
|
{
|
|
char bd[5];
|
|
pScanDef scanning = &dev->scanning;
|
|
pScanParam param = &scanning->sParam;
|
|
|
|
switch( scanning->sParam.bSource ) {
|
|
|
|
case SOURCE_Transparency: strcpy( pfx, "tpa-" ); break;
|
|
case SOURCE_Negative: strcpy( pfx, "neg-" ); break;
|
|
case SOURCE_ADF: strcpy( pfx, "adf-" ); break;
|
|
default: pfx[0] = '\0'; break;
|
|
}
|
|
|
|
sprintf( bd, "%u=", param->bBitDepth );
|
|
if( param->bDataType == SCANDATATYPE_Color )
|
|
strcat( pfx, "color" );
|
|
else
|
|
strcat( pfx, "gray" );
|
|
|
|
strcat( pfx, bd );
|
|
}
|
|
|
|
/** function to read and set the calibration data from external file
|
|
*/
|
|
static SANE_Bool usb_ReadAndSetCalData( pPlustek_Device dev )
|
|
{
|
|
char pfx[20];
|
|
char tmp[1024];
|
|
u_short version;
|
|
int res;
|
|
FILE *fp;
|
|
CalData cal;
|
|
SANE_Bool ret;
|
|
|
|
DBG( _DBG_INFO, "usb_ReadAndSetCalData()\n" );
|
|
|
|
if( NULL == dev->calFile ) {
|
|
DBG( _DBG_ERROR, "- No calibration filename set!\n" );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
DBG( _DBG_INFO, "- Reading calibration data from file\n");
|
|
DBG( _DBG_INFO, " %s\n", dev->calFile );
|
|
|
|
fp = fopen( dev->calFile, "r" );
|
|
if( NULL == fp ) {
|
|
DBG( _DBG_ERROR, "File %s not found\n", dev->calFile );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
/* check version */
|
|
if( !usb_ReadSpecLine( fp, "version=", tmp )) {
|
|
DBG( _DBG_ERROR, "Could not find version info!\n" );
|
|
fclose( fp );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
DBG( _DBG_INFO, "- Calibration file version: %s\n", tmp );
|
|
if( 1 != sscanf( tmp, "0x%04hx", &version )) {
|
|
DBG( _DBG_ERROR, "Could not decode version info!\n" );
|
|
fclose( fp );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
if( version != _PT_CF_VERSION ) {
|
|
DBG( _DBG_ERROR, "Versions do not match!\n" );
|
|
fclose( fp );
|
|
return SANE_FALSE;
|
|
}
|
|
|
|
usb_CreatePrefix( dev, pfx );
|
|
|
|
ret = SANE_FALSE;
|
|
if( usb_ReadSpecLine( fp, pfx, tmp )) {
|
|
DBG( _DBG_INFO, "- Calibration data: %s\n", tmp );
|
|
|
|
res = sscanf( tmp, "%hu,%hu,%hu,%hu,%hu,%hu,"
|
|
"%lu,%lu,%lu,%lu,%lu,%lu,%lu\n",
|
|
&cal.red_gain, &cal.red_offs,
|
|
&cal.green_gain, &cal.green_offs,
|
|
&cal.blue_gain, &cal.blue_offs,
|
|
&cal.light.red_light_on, &cal.light.red_light_off,
|
|
&cal.light.green_light_on, &cal.light.green_light_off,
|
|
&cal.light.blue_light_on, &cal.light.blue_light_off,
|
|
&cal.light.green_pwm_duty );
|
|
|
|
if( 13 == res ) {
|
|
usb_RestoreCalData( &cal );
|
|
ret = SANE_TRUE;
|
|
}
|
|
}
|
|
|
|
fclose( fp );
|
|
DBG( _DBG_INFO, "usb_ReadAndSetCalData() done -> %u\n", ret );
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
*/
|
|
static void usb_PrepCalData( pCalData cal )
|
|
{
|
|
memset( cal, 0, sizeof(CalData));
|
|
cal->version = _PT_CF_VERSION;
|
|
|
|
cal->red_gain = (u_short)a_bRegs[0x3b];
|
|
cal->green_gain = (u_short)a_bRegs[0x3c];
|
|
cal->blue_gain = (u_short)a_bRegs[0x3d];
|
|
cal->red_offs = (u_short)a_bRegs[0x38];
|
|
cal->green_offs = (u_short)a_bRegs[0x39];
|
|
cal->blue_offs = (u_short)a_bRegs[0x3a];
|
|
|
|
cal->light.green_pwm_duty = a_bRegs[0x2a] * 256 + a_bRegs[0x2b];
|
|
|
|
cal->light.red_light_on = a_bRegs[0x2c] * 256 + a_bRegs[0x2d];
|
|
cal->light.red_light_off = a_bRegs[0x2e] * 256 + a_bRegs[0x2f];
|
|
cal->light.green_light_on = a_bRegs[0x30] * 256 + a_bRegs[0x31];
|
|
cal->light.green_light_off = a_bRegs[0x32] * 256 + a_bRegs[0x33];
|
|
cal->light.blue_light_on = a_bRegs[0x34] * 256 + a_bRegs[0x35];
|
|
cal->light.blue_light_off = a_bRegs[0x36] * 256 + a_bRegs[0x37];
|
|
}
|
|
|
|
/** function to save/update the calibration data
|
|
*/
|
|
static void usb_SaveCalData( pPlustek_Device dev )
|
|
{
|
|
char pfx[20];
|
|
char tmp[1024];
|
|
char set_tmp[1024];
|
|
char *other_tmp;
|
|
u_short version;
|
|
FILE *fp;
|
|
CalData cal;
|
|
pScanDef scanning = &dev->scanning;
|
|
|
|
DBG( _DBG_INFO, "usb_SaveCalData()\n" );
|
|
|
|
/* no new data, so skip this step too */
|
|
if( SANE_TRUE == scanning->skipCoarseCalib ) {
|
|
DBG( _DBG_INFO, "- No calibration data to save!\n" );
|
|
return;
|
|
}
|
|
|
|
if( NULL == dev->calFile ) {
|
|
DBG( _DBG_ERROR, "- No calibration filename set!\n" );
|
|
return;
|
|
}
|
|
DBG( _DBG_INFO, "- Saving calibration data to file\n" );
|
|
DBG( _DBG_INFO, " %s\n", dev->calFile );
|
|
|
|
usb_PrepCalData ( &cal );
|
|
usb_CreatePrefix( dev, pfx );
|
|
|
|
sprintf( set_tmp, "%s%u,%u,%u,%u,%u,%u,"
|
|
"%lu,%lu,%lu,%lu,%lu,%lu,%lu\n", pfx,
|
|
cal.red_gain, cal.red_offs,
|
|
cal.green_gain, cal.green_offs,
|
|
cal.blue_gain, cal.blue_offs,
|
|
cal.light.red_light_on, cal.light.red_light_off,
|
|
cal.light.green_light_on, cal.light.green_light_off,
|
|
cal.light.blue_light_on, cal.light.blue_light_off,
|
|
cal.light.green_pwm_duty );
|
|
|
|
/* read complete old file if compatible... */
|
|
other_tmp = NULL;
|
|
fp = fopen( dev->calFile, "r+" );
|
|
if( NULL != fp ) {
|
|
|
|
if( usb_ReadSpecLine( fp, "version=", tmp )) {
|
|
DBG( _DBG_INFO, "- Calibration file version: %s\n", tmp );
|
|
|
|
if( 1 == sscanf( tmp, "0x%04hx", &version )) {
|
|
|
|
if( version == cal.version ) {
|
|
DBG( _DBG_INFO, "- Versions do match\n" );
|
|
|
|
/* read the rest... */
|
|
other_tmp = usb_ReadOtherLines( fp, pfx );
|
|
} else {
|
|
DBG( _DBG_INFO2, "- Versions do not match (0x%04x)\n", version );
|
|
}
|
|
} else {
|
|
DBG( _DBG_INFO2, "- cannot decode version\n" );
|
|
}
|
|
} else {
|
|
DBG( _DBG_INFO2, "- Version not found\n" );
|
|
}
|
|
fclose( fp );
|
|
}
|
|
fp = fopen( dev->calFile, "w+" );
|
|
if( NULL == fp ) {
|
|
DBG( _DBG_ERROR, "- Cannot create file %s\n", dev->calFile );
|
|
DBG( _DBG_ERROR, "- -> %s\n", strerror(errno));
|
|
if( other_tmp )
|
|
free( other_tmp );
|
|
return;
|
|
}
|
|
|
|
/* rewrite the file again... */
|
|
fprintf( fp, "version=0x%04X\n", cal.version );
|
|
if( strlen( set_tmp ))
|
|
fprintf( fp, "%s", set_tmp );
|
|
|
|
if( other_tmp ) {
|
|
fprintf( fp, "%s", other_tmp );
|
|
free( other_tmp );
|
|
}
|
|
fclose( fp );
|
|
DBG( _DBG_INFO, "usb_SaveCalData() done.\n" );
|
|
}
|
|
|
|
/* END PLUSTEK-USBCALFILE.C .................................................*/
|