dlls/sane.ds/options.c

   1 /*
   2  * Copyright 2009 Jeremy White <jwhite@codeweavers.com> for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20 #include <stdlib.h>
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "winnls.h"
  24 #include "sane_i.h"
  25 #include "wine/debug.h"
  26
  27 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  28
  29 TW_UINT16 sane_option_get_value( int optno, void *val )
  30 {
  31     struct option_get_value_params params = { optno, val };
  32
  33     return SANE_CALL( option_get_value, &params );
  34 }
  35
  36 TW_UINT16 sane_option_set_value( int optno, void *val, BOOL *reload )
  37 {
  38     struct option_set_value_params params = { optno, val, reload };
  39
  40     return SANE_CALL( option_set_value, &params );
  41 }
  42
  43 static TW_UINT16 sane_find_option( const char *name, int type, struct option_descriptor *descr )
  44 {
  45     struct option_find_descriptor_params params = { name, type, descr };
  46     return SANE_CALL( option_find_descriptor, &params ) ? TWCC_CAPUNSUPPORTED : TWCC_SUCCESS;
  47 }
  48
  49 TW_UINT16 sane_option_get_int(const char *option_name, int *val)
  50 {
  51     struct option_descriptor opt;
  52     TW_UINT16 rc = sane_find_option(option_name, TYPE_INT, &opt);
  53
  54     if (rc == TWCC_SUCCESS) rc = sane_option_get_value( opt.optno, val );
  55     return rc;
  56 }
  57
  58 TW_UINT16 sane_option_set_int(const char *option_name, int val, BOOL *needs_reload )
  59 {
  60     struct option_descriptor opt;
  61     TW_UINT16 rc = sane_find_option(option_name, TYPE_INT, &opt);
  62     if (!opt.is_settable) return TWCC_OPERATIONERROR;
  63
  64     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, &val, needs_reload );
  65     return rc;
  66 }
  67
  68 TW_UINT16 sane_option_get_bool(const char *option_name, int *val)
  69 {
  70     struct option_descriptor opt;
  71     TW_UINT16 rc = sane_find_option(option_name, TYPE_BOOL, &opt);
  72
  73     if (rc == TWCC_SUCCESS) rc = sane_option_get_value( opt.optno, val );
  74     return rc;
  75 }
  76
  77 TW_UINT16 sane_option_set_bool(const char *option_name, int val )
  78 {
  79     struct option_descriptor opt;
  80     TW_UINT16 rc = sane_find_option(option_name, TYPE_BOOL, &opt);
  81     if (!opt.is_settable) return TWCC_OPERATIONERROR;
  82
  83     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, &val, NULL );
  84     return rc;
  85 }
  86
  87 TW_UINT16 sane_option_get_str(const char *option_name, char *val, int len)
  88 {
  89     struct option_descriptor opt;
  90     TW_UINT16 rc = sane_find_option(option_name, TYPE_STRING, &opt);
  91
  92     if (rc == TWCC_SUCCESS)
  93     {
  94         if (opt.size < len)
  95             rc = sane_option_get_value( opt.optno, val );
  96         else
  97             rc = TWCC_BADVALUE;
  98     }
  99     return rc;
 100 }
 101
 102 /* Important:  SANE has the side effect of overwriting val with the returned value */
 103 TW_UINT16 sane_option_set_str(const char *option_name, char *val, BOOL *needs_reload)
 104 {
 105     struct option_descriptor opt;
 106     TW_UINT16 rc = sane_find_option(option_name, TYPE_STRING, &opt);
 107     if (!opt.is_settable) return TWCC_OPERATIONERROR;
 108
 109     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, val, needs_reload );
 110     return rc;
 111 }
 112
 113 TW_UINT16 sane_option_probe_resolution(const char *option_name, struct option_descriptor *opt)
 114 {
 115     return sane_find_option(option_name, TYPE_INT, opt);
 116 }
 117
 118 static TW_UINT32 sane_categorize_value(const WCHAR* value, const WCHAR* const* filter[], char* categories, int buf_len)
 119 {
 120     TW_UINT32 i, j;
 121     for(i=0; filter[i]; ++i)
 122     {
 123         if (!*categories)
 124         {
 125             for(j=0; filter[i][j]; ++j)
 126             {
 127                 if (!wcscmp(value, filter[i][j]))
 128                 {
 129                     wcstombs(categories, value, buf_len);
 130                     return i;
 131                 }
 132             }
 133         }
 134         categories += buf_len;
 135     }
 136     return 0;
 137 }
 138
 139 TW_UINT16 sane_option_probe_str(const char* option_name, const WCHAR* const* filter[], char* opt_values, int buf_len)
 140 {
 141     WCHAR *p;
 142     struct option_descriptor opt;
 143     TW_UINT16 rc = sane_find_option(option_name, TYPE_STRING, &opt);
 144
 145     if (rc != TWCC_SUCCESS) return rc;
 146     if (opt.size > buf_len) return TWCC_BADVALUE;
 147
 148     if (opt.constraint_type == CONSTRAINT_STRING_LIST)
 149     {
 150         for (p = opt.constraint.strings; *p; p += lstrlenW(p) + 1)
 151         {
 152             sane_categorize_value(p, filter, opt_values, buf_len);
 153         }
 154     }
 155     return rc;
 156 }
 157
 158 TW_UINT16 sane_option_get_scan_area( int *tlx, int *tly, int *brx, int *bry )
 159 {
 160     TW_UINT16 rc;
 161     struct option_descriptor opt;
 162
 163     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 164     if ((rc = sane_option_get_value( opt.optno, tlx )) != TWCC_SUCCESS) return rc;
 165     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 166     if ((rc = sane_option_get_value( opt.optno, tly )) != TWCC_SUCCESS) return rc;
 167     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 168     if ((rc = sane_option_get_value( opt.optno, brx )) != TWCC_SUCCESS) return rc;
 169     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 170     if ((rc = sane_option_get_value( opt.optno, bry )) != TWCC_SUCCESS) return rc;
 171     if (opt.unit != UNIT_MM) FIXME( "unsupported unit %u\n", opt.unit );
 172     return rc;
 173 }
 174
 175 TW_UINT16 sane_option_get_max_scan_area( int *tlx, int *tly, int *brx, int *bry )
 176 {
 177     TW_UINT16 rc;
 178     struct option_descriptor opt;
 179
 180     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 181     *tlx = opt.constraint.range.min;
 182     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 183     *tly = opt.constraint.range.min;
 184     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 185     *brx = opt.constraint.range.max;
 186     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 187     *bry = opt.constraint.range.max;
 188     if (opt.unit != UNIT_MM) FIXME( "unsupported unit %u\n", opt.unit );
 189     return rc;
 190 }
 191
 192 TW_UINT16 sane_option_set_scan_area( int tlx, int tly, int brx, int bry, BOOL *reload )
 193 {
 194     TW_UINT16 rc;
 195     struct option_descriptor opt;
 196
 197     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 198     if ((rc = sane_option_set_value( opt.optno, &tlx, reload )) != TWCC_SUCCESS) return rc;
 199     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 200     if ((rc = sane_option_set_value( opt.optno, &tly, reload )) != TWCC_SUCCESS) return rc;
 201     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 202     if ((rc = sane_option_set_value( opt.optno, &brx, reload )) != TWCC_SUCCESS) return rc;
 203     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 204     if ((rc = sane_option_set_value( opt.optno, &bry, reload )) != TWCC_SUCCESS) return rc;
 205     return rc;
 206 }
 207
 208 TW_FIX32 convert_sane_res_to_twain(int res)
 209 {
 210     TW_FIX32 value;
 211     res = MulDiv( res, 10, 254 );  /* mm -> inch */
 212     value.Whole = res / 65536;
 213     value.Frac  = res & 0xffff;
 214     return value;
 215 }
 216
 217 int convert_twain_res_to_sane( TW_FIX32 res )
 218 {
 219     return MulDiv( res.Whole * 65536 + res.Frac, 254, 10 );  /* inch -> mm */
 220 }
 221
 222 TW_UINT16 get_sane_params( struct frame_parameters *params )
 223 {
 224     return SANE_CALL( get_params, params );
 225 }