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
  63     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, &val, needs_reload );
  64     return rc;
  65 }
  66
  67 TW_UINT16 sane_option_get_bool(const char *option_name, int *val)
  68 {
  69     struct option_descriptor opt;
  70     TW_UINT16 rc = sane_find_option(option_name, TYPE_BOOL, &opt);
  71
  72     if (rc == TWCC_SUCCESS) rc = sane_option_get_value( opt.optno, val );
  73     return rc;
  74 }
  75
  76 TW_UINT16 sane_option_set_bool(const char *option_name, int val )
  77 {
  78     struct option_descriptor opt;
  79     TW_UINT16 rc = sane_find_option(option_name, TYPE_BOOL, &opt);
  80
  81     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, &val, NULL );
  82     return rc;
  83 }
  84
  85 TW_UINT16 sane_option_get_str(const char *option_name, char *val, int len)
  86 {
  87     struct option_descriptor opt;
  88     TW_UINT16 rc = sane_find_option(option_name, TYPE_STRING, &opt);
  89
  90     if (rc == TWCC_SUCCESS)
  91     {
  92         if (opt.size < len)
  93             rc = sane_option_get_value( opt.optno, val );
  94         else
  95             rc = TWCC_BADVALUE;
  96     }
  97     return rc;
  98 }
  99
 100 /* Important:  SANE has the side effect of overwriting val with the returned value */
 101 TW_UINT16 sane_option_set_str(const char *option_name, char *val, BOOL *needs_reload)
 102 {
 103     struct option_descriptor opt;
 104     TW_UINT16 rc = sane_find_option(option_name, TYPE_STRING, &opt);
 105
 106     if (rc == TWCC_SUCCESS) rc = sane_option_set_value( opt.optno, val, needs_reload );
 107     return rc;
 108 }
 109
 110 TW_UINT16 sane_option_probe_resolution(const char *option_name, struct option_descriptor *opt)
 111 {
 112     return sane_find_option(option_name, TYPE_INT, opt);
 113 }
 114
 115 TW_UINT16 sane_option_probe_mode(TW_UINT16 *current, TW_UINT32 *choices, int *count)
 116 {
 117     WCHAR *p;
 118     char buffer[256];
 119     struct option_descriptor opt;
 120     TW_UINT16 rc = sane_find_option("mode", TYPE_STRING, &opt);
 121
 122     if (rc != TWCC_SUCCESS) return rc;
 123     if (opt.size > sizeof(buffer)) return TWCC_BADVALUE;
 124     rc = sane_option_get_value( opt.optno, buffer );
 125     if (rc != TWCC_SUCCESS) return rc;
 126
 127     if (!strcmp( buffer, "Lineart" )) *current = TWPT_BW;
 128     else if (!strcmp( buffer, "Color" )) *current = TWPT_RGB;
 129     else if (!strncmp( buffer, "Gray", 4 )) *current = TWPT_GRAY;
 130
 131     *count = 0;
 132     if (opt.constraint_type == CONSTRAINT_STRING_LIST)
 133     {
 134         for (p = opt.constraint.strings; *p; p += lstrlenW(p) + 1)
 135         {
 136             if (!wcscmp( p, L"Lineart" )) choices[(*count)++] = TWPT_BW;
 137             else if (!wcscmp( p, L"Color" )) choices[(*count)++] = TWPT_RGB;
 138             else if (!wcsncmp( p, L"Gray", 4 )) choices[(*count)++] = TWPT_GRAY;
 139         }
 140     }
 141     return rc;
 142 }
 143
 144 TW_UINT16 sane_option_get_scan_area( int *tlx, int *tly, int *brx, int *bry )
 145 {
 146     TW_UINT16 rc;
 147     struct option_descriptor opt;
 148
 149     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 150     if ((rc = sane_option_get_value( opt.optno, tlx )) != TWCC_SUCCESS) return rc;
 151     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 152     if ((rc = sane_option_get_value( opt.optno, tly )) != TWCC_SUCCESS) return rc;
 153     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 154     if ((rc = sane_option_get_value( opt.optno, brx )) != TWCC_SUCCESS) return rc;
 155     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 156     if ((rc = sane_option_get_value( opt.optno, bry )) != TWCC_SUCCESS) return rc;
 157     if (opt.unit != UNIT_MM) FIXME( "unsupported unit %u\n", opt.unit );
 158     return rc;
 159 }
 160
 161 TW_UINT16 sane_option_get_max_scan_area( int *tlx, int *tly, int *brx, int *bry )
 162 {
 163     TW_UINT16 rc;
 164     struct option_descriptor opt;
 165
 166     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 167     *tlx = opt.constraint.range.min;
 168     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 169     *tly = opt.constraint.range.min;
 170     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 171     *brx = opt.constraint.range.max;
 172     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 173     *bry = opt.constraint.range.max;
 174     if (opt.unit != UNIT_MM) FIXME( "unsupported unit %u\n", opt.unit );
 175     return rc;
 176 }
 177
 178 TW_UINT16 sane_option_set_scan_area( int tlx, int tly, int brx, int bry, BOOL *reload )
 179 {
 180     TW_UINT16 rc;
 181     struct option_descriptor opt;
 182
 183     if ((rc = sane_find_option( "tl-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 184     if ((rc = sane_option_set_value( opt.optno, &tlx, reload )) != TWCC_SUCCESS) return rc;
 185     if ((rc = sane_find_option( "tl-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 186     if ((rc = sane_option_set_value( opt.optno, &tly, reload )) != TWCC_SUCCESS) return rc;
 187     if ((rc = sane_find_option( "br-x", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 188     if ((rc = sane_option_set_value( opt.optno, &brx, reload )) != TWCC_SUCCESS) return rc;
 189     if ((rc = sane_find_option( "br-y", TYPE_FIXED, &opt )) != TWCC_SUCCESS) return rc;
 190     if ((rc = sane_option_set_value( opt.optno, &bry, reload )) != TWCC_SUCCESS) return rc;
 191     return rc;
 192 }
 193
 194 TW_FIX32 convert_sane_res_to_twain(int res)
 195 {
 196     TW_FIX32 value;
 197     res = MulDiv( res, 10, 254 );  /* mm -> inch */
 198     value.Whole = res / 65536;
 199     value.Frac  = res & 0xffff;
 200     return value;
 201 }
 202
 203 int convert_twain_res_to_sane( TW_FIX32 res )
 204 {
 205     return MulDiv( res.Whole * 65536 + res.Frac, 254, 10 );  /* inch -> mm */
 206 }
 207
 208 TW_UINT16 get_sane_params( struct frame_parameters *params )
 209 {
 210     return SANE_CALL( get_params, params );
 211 }