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
23 #include "wine/debug.h"
26 static SANE_Status sane_find_option(SANE_Handle h, const char *option_name,
27 const SANE_Option_Descriptor **opt_p, int *optno, SANE_Value_Type type)
31 const SANE_Option_Descriptor *opt;
34 /* Debian, in 32_net_backend_standard_fix.dpatch,
35 * forces a frontend (that's us) to reload options
36 * manually by invoking get_option_descriptor. */
37 opt = psane_get_option_descriptor(h, 0);
39 return SANE_STATUS_EOF;
41 rc = psane_control_option(h, 0, SANE_ACTION_GET_VALUE, &optcount, NULL);
42 if (rc != SANE_STATUS_GOOD)
45 for (i = 1; i < optcount; i++)
47 opt = psane_get_option_descriptor(h, i);
48 if (opt && (opt->name && strcmp(opt->name, option_name) == 0) &&
53 return SANE_STATUS_GOOD;
56 return SANE_STATUS_EOF;
59 SANE_Status sane_option_get_int(SANE_Handle h, const char *option_name, SANE_Int *val)
63 const SANE_Option_Descriptor *opt;
65 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
66 if (rc != SANE_STATUS_GOOD)
69 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, val, NULL);
72 SANE_Status sane_option_set_int(SANE_Handle h, const char *option_name, SANE_Int val, SANE_Int *status)
76 const SANE_Option_Descriptor *opt;
78 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
79 if (rc != SANE_STATUS_GOOD)
82 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
85 SANE_Status sane_option_get_bool(SANE_Handle h, const char *option_name, SANE_Bool *val, SANE_Int *status)
89 const SANE_Option_Descriptor *opt;
91 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_BOOL);
92 if (rc != SANE_STATUS_GOOD)
95 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, (void *) val, status);
98 SANE_Status sane_option_set_bool(SANE_Handle h, const char *option_name, SANE_Bool val, SANE_Int *status)
102 const SANE_Option_Descriptor *opt;
104 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_BOOL);
105 if (rc != SANE_STATUS_GOOD)
108 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
111 SANE_Status sane_option_set_fixed(SANE_Handle h, const char *option_name, SANE_Fixed val, SANE_Int *status)
115 const SANE_Option_Descriptor *opt;
117 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_FIXED);
118 if (rc != SANE_STATUS_GOOD)
121 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) &val, status);
124 SANE_Status sane_option_get_str(SANE_Handle h, const char *option_name, SANE_String val, size_t len, SANE_Int *status)
128 const SANE_Option_Descriptor *opt;
130 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_STRING);
131 if (rc != SANE_STATUS_GOOD)
135 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, (void *) val, status);
137 return SANE_STATUS_NO_MEM;
140 /* Important: SANE has the side effect of overwriting val with the returned value */
141 SANE_Status sane_option_set_str(SANE_Handle h, const char *option_name, SANE_String val, SANE_Int *status)
145 const SANE_Option_Descriptor *opt;
147 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_STRING);
148 if (rc != SANE_STATUS_GOOD)
151 return psane_control_option(h, optno, SANE_ACTION_SET_VALUE, (void *) val, status);
154 SANE_Status sane_option_probe_resolution(SANE_Handle h, const char *option_name, SANE_Int *minval, SANE_Int *maxval, SANE_Int *quant)
158 const SANE_Option_Descriptor *opt;
160 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_INT);
161 if (rc != SANE_STATUS_GOOD)
164 if (opt->constraint_type != SANE_CONSTRAINT_RANGE)
165 return SANE_STATUS_UNSUPPORTED;
167 *minval = opt->constraint.range->min;
168 *maxval = opt->constraint.range->max;
169 *quant = opt->constraint.range->quant;
174 SANE_Status sane_option_probe_mode(SANE_Handle h, SANE_String_Const **choices, char *current, int current_size)
178 const SANE_Option_Descriptor *opt;
179 rc = sane_find_option(h, "mode", &opt, &optno, SANE_TYPE_STRING);
180 if (rc != SANE_STATUS_GOOD)
183 if (choices && opt->constraint_type == SANE_CONSTRAINT_STRING_LIST)
184 *choices = (SANE_String_Const *) opt->constraint.string_list;
186 if (opt->size < current_size)
187 return psane_control_option(h, optno, SANE_ACTION_GET_VALUE, current, NULL);
189 return SANE_STATUS_NO_MEM;
193 SANE_Status sane_option_probe_scan_area(SANE_Handle h, const char *option_name, SANE_Fixed *val,
194 SANE_Unit *unit, SANE_Fixed *min, SANE_Fixed *max, SANE_Fixed *quant)
198 const SANE_Option_Descriptor *opt;
200 rc = sane_find_option(h, option_name, &opt, &optno, SANE_TYPE_FIXED);
201 if (rc != SANE_STATUS_GOOD)
207 *min = opt->constraint.range->min;
209 *max = opt->constraint.range->max;
211 *quant = opt->constraint.range->quant;
214 rc = psane_control_option(h, optno, SANE_ACTION_GET_VALUE, val, NULL);
219 TW_UINT16 sane_status_to_twcc(SANE_Status rc)
223 case SANE_STATUS_GOOD:
225 case SANE_STATUS_UNSUPPORTED:
226 return TWCC_CAPUNSUPPORTED;
227 case SANE_STATUS_JAMMED:
228 return TWCC_PAPERJAM;
229 case SANE_STATUS_NO_MEM:
230 return TWCC_LOWMEMORY;
231 case SANE_STATUS_ACCESS_DENIED:
234 case SANE_STATUS_IO_ERROR:
235 case SANE_STATUS_NO_DOCS:
236 case SANE_STATUS_COVER_OPEN:
237 case SANE_STATUS_EOF:
238 case SANE_STATUS_INVAL:
239 case SANE_STATUS_CANCELLED:
240 case SANE_STATUS_DEVICE_BUSY:
245 static void convert_double_fix32(double d, TW_FIX32 *fix32)
247 TW_INT32 value = (TW_INT32) (d * 65536.0 + 0.5);
248 fix32->Whole = value >> 16;
249 fix32->Frac = value & 0x0000ffffL;
252 BOOL convert_sane_res_to_twain(double sane_res, SANE_Unit unit, TW_FIX32 *twain_res, TW_UINT16 twtype)
254 if (unit != SANE_UNIT_MM)
257 if (twtype != TWUN_INCHES)
260 convert_double_fix32((sane_res / 10.0) / 2.54, twain_res);