xref: /third_party/backends/backend/p5.c

303  * Called to establish connection with the session. This function will
323   struct P5_Session *session = NULL;
402   session = (P5_Session *) malloc (sizeof (P5_Session));
403   if (session == NULL)
409   /* initialize session */
410   session->dev = device;
411   session->scanning = SANE_FALSE;
412   session->non_blocking = SANE_FALSE;
414   /* initialize SANE options for this session */
415   init_options (session);
418   session->next = sessions;
419   sessions = session;
422   *handle = session;
437   P5_Session *session = (P5_Session *) handle;
440   if (session->scanning != SANE_TRUE)
445   session->non_blocking = non_blocking;
488   struct P5_Session *session = handle;
496        session->options[option].descriptor.name);
499   return &(session->options[option].descriptor);
810  * @param handle opaque handle to a frontend session
812  * in use by another session or SANE_STATUS_WARMING_UP if the device is
819   struct P5_Session *session = handle;
821   P5_Device *dev = session->dev;
826   if (session->scanning == SANE_TRUE)
849   compute_parameters (session);
891   session->scanning = SANE_TRUE;
892   session->sent = 0;
894   DBG (DBG_io, "sane_start: to_send=%d\n", session->to_send);
908  * @param session fronted session to compute final scan parameters
912 compute_parameters (P5_Session * session)
914   P5_Device *dev = session->dev;
921   mode = session->options[OPT_MODE].value.s;
922   dpi = session->options[OPT_RESOLUTION].value.w;
925   tl_x = SANE_UNFIX (session->options[OPT_TL_X].value.w);
926   tl_y = SANE_UNFIX (session->options[OPT_TL_Y].value.w);
927   br_x = SANE_UNFIX (session->options[OPT_BR_X].value.w);
928   br_y = SANE_UNFIX (session->options[OPT_BR_Y].value.w);
931   session->params.last_frame = SANE_TRUE;
936       session->params.format = SANE_FRAME_GRAY;
942       session->params.format = SANE_FRAME_GRAY;
949       session->params.format = SANE_FRAME_RGB;
955   session->params.lines = ((br_y - tl_y) * dpi) / MM_PER_INCH;
956   if (session->params.lines == 0)
957     session->params.lines = 1;
958   session->params.pixels_per_line = ((br_x - tl_x) * dpi) / MM_PER_INCH;
959   if (session->params.pixels_per_line == 0)
960     session->params.pixels_per_line = 1;
963        session->params.pixels_per_line);
967       session->params.depth = 1;
971       session->params.pixels_per_line =
972 	((session->params.pixels_per_line + 7) / 8) * 8;
975     session->params.depth = 8;
978   if (session->params.pixels_per_line & 1)
979     session->params.pixels_per_line++;
984   dev->lines = session->params.lines;
985   dev->pixels = session->params.pixels_per_line;
1000       session->params.lines =
1001 	(session->params.lines / dev->lines) * dev->lines;
1002       if (session->params.lines == 0)
1003 	session->params.lines = 1;
1023   session->params.bytes_per_line = session->params.pixels_per_line;
1025   if (session->params.format == SANE_FRAME_RGB)
1033   if (session->params.depth == 1)
1035       session->params.bytes_per_line =
1036 	(session->params.bytes_per_line + 7) / 8;
1039   session->params.bytes_per_line = dev->bytes_per_line;
1040   session->to_send = session->params.bytes_per_line * session->params.lines;
1041   session->params.bytes_per_line = dev->bytes_per_line;
1044        session->params.bytes_per_line);
1046        session->params.depth);
1048        session->params.lines);
1050        session->to_send);
1086   struct P5_Session *session = (struct P5_Session *) handle;
1091   status = compute_parameters (session);
1093     *params = session->params;
1120   struct P5_Session *session = (struct P5_Session *) handle;
1121   struct P5_Device *dev = session->dev;
1132   if (!session)
1153   /* check if session is scanning */
1154   if (!session->scanning)
1162   if (session->sent >= session->to_send)
1178       if (count < dev->bytes_per_line && session->non_blocking == SANE_TRUE)
1192 	      session->to_send = session->sent;
1207       if (session->to_send - session->sent < size)
1210 	  size = session->to_send - session->sent;
1300       session->sent += *len;
1353   P5_Session *session = handle;
1358   if (session->scanning == SANE_TRUE)
1362       if (session->sent < session->to_send)
1372       session->scanning = SANE_FALSE;
1374   eject (session->dev->fd);
1381  * Ends use of the session.
1396   P5_Session *prev, *session;
1402   for (session = sessions; session; session = session->next)
1404       if (session == handle)
1406       prev = session;
1408   if (!session)
1415   if (session->scanning == SANE_TRUE)
1421     prev->next = session->next;
1423     sessions = session->next;
1426   if (session->dev->initialized == SANE_TRUE)
1428       if (session->dev->calibrated == SANE_TRUE)
1430 	  save_calibration (session->dev);
1432       disconnect (session->dev->fd);
1433       close_pp (session->dev->fd);
1434       session->dev->fd = -1;
1435       session->dev->initialized = SANE_FALSE;
1438       if (session->dev->buffer != NULL)
1440 	  free (session->dev->buffer);
1442       if (session->dev->buffer != NULL)
1444 	  free (session->dev->gain);
1445 	  free (session->dev->offset);
1447       if (session->dev->calibrated == SANE_TRUE)
1449 	  cleanup_calibration (session->dev);
1453   /* free per session data */
1454   free (session->options[OPT_MODE].value.s);
1455   free ((void *)session->options[OPT_RESOLUTION].descriptor.constraint.word_list);
1457   free (session);
1480   struct P5_Session *session, *next;
1495   /* free session structs */
1496   for (session = sessions; session; session = next)
1498       next = session->next;
1499       sane_close ((SANE_Handle *) session);
1500       free (session);
1683   /* with the new session struct */
1699  * @param session scanner session to initialize options
1703 init_options (struct P5_Session *session)
1707   P5_Model *model = session->dev->model;
1712   memset (session->options, 0, sizeof (session->options[OPT_NUM_OPTS]));
1715       session->options[option].descriptor.size = sizeof (SANE_Word);
1716       session->options[option].descriptor.cap =
1723   session->options[OPT_NUM_OPTS].descriptor.name = SANE_NAME_NUM_OPTIONS;
1724   session->options[OPT_NUM_OPTS].descriptor.title = SANE_TITLE_NUM_OPTIONS;
1725   session->options[OPT_NUM_OPTS].descriptor.desc = SANE_DESC_NUM_OPTIONS;
1726   session->options[OPT_NUM_OPTS].descriptor.type = SANE_TYPE_INT;
1727   session->options[OPT_NUM_OPTS].descriptor.cap = SANE_CAP_SOFT_DETECT;
1728   session->options[OPT_NUM_OPTS].value.w = NUM_OPTIONS;
1731   session->options[OPT_STANDARD_GROUP].descriptor.title = SANE_TITLE_STANDARD;
1732   session->options[OPT_STANDARD_GROUP].descriptor.name = SANE_NAME_STANDARD;
1733   session->options[OPT_STANDARD_GROUP].descriptor.desc = SANE_DESC_STANDARD;
1734   session->options[OPT_STANDARD_GROUP].descriptor.type = SANE_TYPE_GROUP;
1735   session->options[OPT_STANDARD_GROUP].descriptor.size = 0;
1736   session->options[OPT_STANDARD_GROUP].descriptor.cap = 0;
1737   session->options[OPT_STANDARD_GROUP].descriptor.constraint_type =
1741   session->options[OPT_MODE].descriptor.name = SANE_NAME_SCAN_MODE;
1742   session->options[OPT_MODE].descriptor.title = SANE_TITLE_SCAN_MODE;
1743   session->options[OPT_MODE].descriptor.desc = SANE_DESC_SCAN_MODE;
1744   session->options[OPT_MODE].descriptor.type = SANE_TYPE_STRING;
1745   session->options[OPT_MODE].descriptor.cap |= SANE_CAP_AUTOMATIC;
1746   session->options[OPT_MODE].descriptor.constraint_type =
1748   session->options[OPT_MODE].descriptor.size = max_string_size (mode_list);
1749   session->options[OPT_MODE].descriptor.constraint.string_list = mode_list;
1750   session->options[OPT_MODE].value.s = strdup (mode_list[0]);
1753   session->options[OPT_PREVIEW].descriptor.name = SANE_NAME_PREVIEW;
1754   session->options[OPT_PREVIEW].descriptor.title = SANE_TITLE_PREVIEW;
1755   session->options[OPT_PREVIEW].descriptor.desc = SANE_DESC_PREVIEW;
1756   session->options[OPT_PREVIEW].descriptor.type = SANE_TYPE_BOOL;
1757   session->options[OPT_PREVIEW].descriptor.cap |= SANE_CAP_AUTOMATIC;
1758   session->options[OPT_PREVIEW].descriptor.unit = SANE_UNIT_NONE;
1759   session->options[OPT_PREVIEW].descriptor.constraint_type =
1761   session->options[OPT_PREVIEW].value.w = SANE_FALSE;
1823   session->options[OPT_RESOLUTION].descriptor.name =
1825   session->options[OPT_RESOLUTION].descriptor.title =
1827   session->options[OPT_RESOLUTION].descriptor.desc =
1829   session->options[OPT_RESOLUTION].descriptor.type = SANE_TYPE_INT;
1830   session->options[OPT_RESOLUTION].descriptor.cap |= SANE_CAP_AUTOMATIC;
1831   session->options[OPT_RESOLUTION].descriptor.unit = SANE_UNIT_DPI;
1832   session->options[OPT_RESOLUTION].descriptor.constraint_type =
1834   session->options[OPT_RESOLUTION].descriptor.constraint.word_list = dpi_list;
1837   session->options[OPT_RESOLUTION].value.w = min;
1840   session->options[OPT_GEOMETRY_GROUP].descriptor.title = SANE_TITLE_GEOMETRY;
1841   session->options[OPT_GEOMETRY_GROUP].descriptor.name = SANE_NAME_GEOMETRY;
1842   session->options[OPT_GEOMETRY_GROUP].descriptor.desc = SANE_DESC_GEOMETRY;
1843   session->options[OPT_GEOMETRY_GROUP].descriptor.type = SANE_TYPE_GROUP;
1844   session->options[OPT_GEOMETRY_GROUP].descriptor.cap = SANE_CAP_ADVANCED;
1845   session->options[OPT_GEOMETRY_GROUP].descriptor.size = 0;
1846   session->options[OPT_GEOMETRY_GROUP].descriptor.constraint_type =
1854   session->options[OPT_TL_X].descriptor.name = SANE_NAME_SCAN_TL_X;
1855   session->options[OPT_TL_X].descriptor.title = SANE_TITLE_SCAN_TL_X;
1856   session->options[OPT_TL_X].descriptor.desc = SANE_DESC_SCAN_TL_X;
1857   session->options[OPT_TL_X].descriptor.type = SANE_TYPE_FIXED;
1858   session->options[OPT_TL_X].descriptor.cap |= SANE_CAP_AUTOMATIC;
1859   session->options[OPT_TL_X].descriptor.unit = SANE_UNIT_MM;
1860   session->options[OPT_TL_X].descriptor.constraint_type =
1862   session->options[OPT_TL_X].descriptor.constraint.range = &x_range;
1863   session->options[OPT_TL_X].value.w = 0;
1866   session->options[OPT_TL_Y].descriptor.name = SANE_NAME_SCAN_TL_Y;
1867   session->options[OPT_TL_Y].descriptor.title = SANE_TITLE_SCAN_TL_Y;
1868   session->options[OPT_TL_Y].descriptor.desc = SANE_DESC_SCAN_TL_Y;
1869   session->options[OPT_TL_Y].descriptor.type = SANE_TYPE_FIXED;
1870   session->options[OPT_TL_Y].descriptor.cap |= SANE_CAP_AUTOMATIC;
1871   session->options[OPT_TL_Y].descriptor.unit = SANE_UNIT_MM;
1872   session->options[OPT_TL_Y].descriptor.constraint_type =
1874   session->options[OPT_TL_Y].descriptor.constraint.range = &y_range;
1875   session->options[OPT_TL_Y].value.w = 0;
1878   session->options[OPT_BR_X].descriptor.name = SANE_NAME_SCAN_BR_X;
1879   session->options[OPT_BR_X].descriptor.title = SANE_TITLE_SCAN_BR_X;
1880   session->options[OPT_BR_X].descriptor.desc = SANE_DESC_SCAN_BR_X;
1881   session->options[OPT_BR_X].descriptor.type = SANE_TYPE_FIXED;
1882   session->options[OPT_BR_X].descriptor.cap |= SANE_CAP_AUTOMATIC;
1883   session->options[OPT_BR_X].descriptor.unit = SANE_UNIT_MM;
1884   session->options[OPT_BR_X].descriptor.constraint_type =
1886   session->options[OPT_BR_X].descriptor.constraint.range = &x_range;
1887   session->options[OPT_BR_X].value.w = x_range.max;
1890   session->options[OPT_BR_Y].descriptor.name = SANE_NAME_SCAN_BR_Y;
1891   session->options[OPT_BR_Y].descriptor.title = SANE_TITLE_SCAN_BR_Y;
1892   session->options[OPT_BR_Y].descriptor.desc = SANE_DESC_SCAN_BR_Y;
1893   session->options[OPT_BR_Y].descriptor.type = SANE_TYPE_FIXED;
1894   session->options[OPT_BR_Y].descriptor.cap |= SANE_CAP_AUTOMATIC;
1895   session->options[OPT_BR_Y].descriptor.unit = SANE_UNIT_MM;
1896   session->options[OPT_BR_Y].descriptor.constraint_type =
1898   session->options[OPT_BR_Y].descriptor.constraint.range = &y_range;
1899   session->options[OPT_BR_Y].value.w = y_range.max;
1902   session->options[OPT_SENSOR_GROUP].descriptor.name = SANE_NAME_SENSORS;
1903   session->options[OPT_SENSOR_GROUP].descriptor.title = SANE_TITLE_SENSORS;
1904   session->options[OPT_SENSOR_GROUP].descriptor.desc = SANE_DESC_SENSORS;
1905   session->options[OPT_SENSOR_GROUP].descriptor.type = SANE_TYPE_GROUP;
1906   session->options[OPT_SENSOR_GROUP].descriptor.constraint_type =
1910   session->options[OPT_PAGE_LOADED_SW].descriptor.name =
1912   session->options[OPT_PAGE_LOADED_SW].descriptor.title =
1914   session->options[OPT_PAGE_LOADED_SW].descriptor.desc =
1916   session->options[OPT_PAGE_LOADED_SW].descriptor.type = SANE_TYPE_BOOL;
1917   session->options[OPT_PAGE_LOADED_SW].descriptor.unit = SANE_UNIT_NONE;
1918   session->options[OPT_PAGE_LOADED_SW].descriptor.cap =
1920   session->options[OPT_PAGE_LOADED_SW].value.b = 0;
1923   session->options[OPT_NEED_CALIBRATION_SW].descriptor.name =
1925   session->options[OPT_NEED_CALIBRATION_SW].descriptor.title =
1927   session->options[OPT_NEED_CALIBRATION_SW].descriptor.desc =
1929   session->options[OPT_NEED_CALIBRATION_SW].descriptor.type = SANE_TYPE_BOOL;
1930   session->options[OPT_NEED_CALIBRATION_SW].descriptor.unit = SANE_UNIT_NONE;
1931   session->options[OPT_NEED_CALIBRATION_SW].descriptor.cap =
1933   session->options[OPT_NEED_CALIBRATION_SW].value.b = 0;
1936   session->options[OPT_BUTTON_GROUP].descriptor.name = "Buttons";
1937   session->options[OPT_BUTTON_GROUP].descriptor.title = SANE_I18N ("Buttons");
1938   session->options[OPT_BUTTON_GROUP].descriptor.desc = SANE_I18N ("Buttons");
1939   session->options[OPT_BUTTON_GROUP].descriptor.type = SANE_TYPE_GROUP;
1940   session->options[OPT_BUTTON_GROUP].descriptor.constraint_type =
1944   session->options[OPT_CALIBRATE].descriptor.name = "calibrate";
1945   session->options[OPT_CALIBRATE].descriptor.title = SANE_I18N ("Calibrate");
1946   session->options[OPT_CALIBRATE].descriptor.desc =
1948   session->options[OPT_CALIBRATE].descriptor.type = SANE_TYPE_BUTTON;
1949   session->options[OPT_CALIBRATE].descriptor.unit = SANE_UNIT_NONE;
1950   session->options[OPT_CALIBRATE].descriptor.cap =
1953   session->options[OPT_CALIBRATE].value.b = 0;
1956   session->options[OPT_CLEAR_CALIBRATION].descriptor.name = "clear";
1957   session->options[OPT_CLEAR_CALIBRATION].descriptor.title =
1959   session->options[OPT_CLEAR_CALIBRATION].descriptor.desc =
1961   session->options[OPT_CLEAR_CALIBRATION].descriptor.type = SANE_TYPE_BUTTON;
1962   session->options[OPT_CLEAR_CALIBRATION].descriptor.unit = SANE_UNIT_NONE;
1963   session->options[OPT_CLEAR_CALIBRATION].descriptor.cap =
1966   session->options[OPT_CLEAR_CALIBRATION].value.b = 0;

Indexes created Thu Nov 07 10:32:03 CST 2024