2 * Copyright 2009 Jeremy White <jwhite@codeweavers.com> for CodeWeavers
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.
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.
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
24 #include "wine/debug.h"
27 static SANE_Status sane_find_option(SANE_Handle h, const char *option_name,
28 const SANE_Option_Descriptor **opt_p, int *optno, SANE_Value_Type type)
32 const SANE_Option_Descriptor *opt;
35 /* Debian, in 32_net_backend_standard_fix.dpatch,
36 * forces a frontend (that's us) to reload options
37 * manually by invoking get_option_descriptor. */
38 opt = psane_get_option_descriptor(h, 0);
40 return SANE_STATUS_EOF;
42 rc = psane_control_option(h, 0, SANE_ACTION_GET_VALUE, &optcount, NULL);
43 if (rc != SANE_STATUS_GOOD)
46 for (i = 1; i < optcount; i++)
48 opt = psane_get_option_descriptor(h, i);
49 if (opt && (opt->name && strcmp(opt->name, option_name) == 0) &&
54 return SANE_STATUS_GOOD;
57 return SANE_STATUS_EOF;
60 SANE_Status sane_option_get_int(SANE_Handle h, const char *option_name, SANE_Int *val)
64 const SANE_Option_Descriptor *opt;
66 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
67 if (rc != SANE_STATUS_GOOD)
70 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, val, NULL);
73 SANE_Status sane_option_set_int(SANE_Handle h, const char *option_name, SANE_Int val, SANE_Int *status)
77 const SANE_Option_Descriptor *opt;
79 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
80 if (rc != SANE_STATUS_GOOD)
83 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
86 SANE_Status sane_option_get_bool(SANE_Handle h, const char *option_name, SANE_Bool *val, SANE_Int *status)
90 const SANE_Option_Descriptor *opt;
92 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_BOOL);
93 if (rc != SANE_STATUS_GOOD)
96 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, (void *) val, status);
99 SANE_Status sane_option_set_bool(SANE_Handle h, const char *option_name, SANE_Bool val, SANE_Int *status)
103 const SANE_Option_Descriptor *opt;
105 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_BOOL);
106 if (rc != SANE_STATUS_GOOD)
109 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
112 SANE_Status sane_option_set_fixed(SANE_Handle h, const char *option_name, SANE_Fixed val, SANE_Int *status)
116 const SANE_Option_Descriptor *opt;
118 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_FIXED);
119 if (rc != SANE_STATUS_GOOD)
122 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
125 SANE_Status sane_option_get_str(SANE_Handle h, const char *option_name, SANE_String val, size_t len, SANE_Int *status)
129 const SANE_Option_Descriptor *opt;
131 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_STRING);
132 if (rc != SANE_STATUS_GOOD)
136 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, (void *) val, status);
138 return SANE_STATUS_NO_MEM;
141 /* Important: SANE has the side effect of overwriting val with the returned value */
142 SANE_Status sane_option_set_str(SANE_Handle h, const char *option_name, SANE_String val, SANE_Int *status)
146 const SANE_Option_Descriptor *opt;
148 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_STRING);
149 if (rc != SANE_STATUS_GOOD)
152 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) val, status);
155 SANE_Status sane_option_probe_resolution(SANE_Handle h, const char *option_name, SANE_Int *minval, SANE_Int *maxval, SANE_Int *quant)
159 const SANE_Option_Descriptor *opt;
161 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
162 if (rc != SANE_STATUS_GOOD)
165 if (opt->constraint_type != SANE_CONSTRAINT_RANGE)
166 return SANE_STATUS_UNSUPPORTED;
168 *minval = opt->constraint.range->min;
169 *maxval = opt->constraint.range->max;
170 *quant = opt->constraint.range->quant;
175 SANE_Status sane_option_probe_mode(SANE_Handle h, SANE_String_Const **choices, char *current, int current_size)
179 const SANE_Option_Descriptor *opt;
180 rc = sane_find_option(h, "mode", &opt, &optno, SANE_TYPE_STRING);
181 if (rc != SANE_STATUS_GOOD)
184 if (choices && opt->constraint_type == SANE_CONSTRAINT_STRING_LIST)
185 *choices = (SANE_String_Const *) opt->constraint.string_list;
187 if (opt->size < current_size)
188 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, current, NULL);
190 return SANE_STATUS_NO_MEM;
194 SANE_Status sane_option_probe_scan_area(SANE_Handle h, const char *option_name, SANE_Fixed *val,
195 SANE_Unit *unit, SANE_Fixed *min, SANE_Fixed *max, SANE_Fixed *quant)
199 const SANE_Option_Descriptor *opt;
201 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_FIXED);
202 if (rc != SANE_STATUS_GOOD)
208 *min = opt->constraint.range->min;
210 *max = opt->constraint.range->max;
212 *quant = opt->constraint.range->quant;
215 rc = psane_control_option(h, optno, SANE_ACTION_GET_VALUE, val, NULL);
220 TW_UINT16 sane_status_to_twcc(SANE_Status rc)
224 case SANE_STATUS_GOOD:
226 case SANE_STATUS_UNSUPPORTED:
227 return TWCC_CAPUNSUPPORTED;
228 case SANE_STATUS_JAMMED:
229 return TWCC_PAPERJAM;
230 case SANE_STATUS_NO_MEM:
231 return TWCC_LOWMEMORY;
232 case SANE_STATUS_ACCESS_DENIED:
235 case SANE_STATUS_IO_ERROR:
236 case SANE_STATUS_NO_DOCS:
237 case SANE_STATUS_COVER_OPEN:
238 case SANE_STATUS_EOF:
239 case SANE_STATUS_INVAL:
240 case SANE_STATUS_CANCELLED:
241 case SANE_STATUS_DEVICE_BUSY:
246 static void convert_double_fix32(double d, TW_FIX32 *fix32)
248 TW_INT32 value = (TW_INT32) (d * 65536.0 + 0.5);
249 fix32->Whole = value >> 16;
250 fix32->Frac = value & 0x0000ffffL;
253 BOOL convert_sane_res_to_twain(double sane_res, SANE_Unit unit, TW_FIX32 *twain_res, TW_UINT16 twtype)
257 if (unit != SANE_UNIT_MM)
260 if (twtype != TWUN_INCHES)
263 d = (sane_res / 10.0) / 2.54;
264 convert_double_fix32((sane_res / 10.0) / 2.54, twain_res);