414 lines
12 KiB
C
414 lines
12 KiB
C
/*
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* Unix library interface for SANE
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*
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* Copyright 2000 Shi Quan He
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* Copyright 2021 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if 0
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#pragma makedep unix
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#endif
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#include "config.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sane/sane.h>
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#include <sane/saneopts.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "unixlib.h"
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#include "wine/list.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(twain);
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static SANE_Handle device_handle;
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static BOOL device_started;
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static const SANE_Device **device_list;
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/* Sane returns device names that are longer than the 32 bytes allowed
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by TWAIN. However, it colon separates them, and the last bit is
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the most interesting. So we use the last bit, and add a signature
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to ensure uniqueness */
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static void copy_sane_short_name(const char *in, char *out, size_t outsize)
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{
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const char *p;
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int signature = 0;
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if (strlen(in) <= outsize - 1)
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{
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strcpy(out, in);
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return;
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}
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for (p = in; *p; p++)
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signature += *p;
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p = strrchr(in, ':');
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if (!p)
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p = in;
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else
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p++;
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if (strlen(p) > outsize - 7 - 1)
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p += strlen(p) - (outsize - 7 - 1);
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strcpy(out, p);
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sprintf(out + strlen(out), "(%04X)", signature % 0x10000);
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}
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static void detect_sane_devices(void)
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{
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if (device_list && device_list[0]) return;
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TRACE("detecting sane...\n");
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sane_get_devices( &device_list, SANE_FALSE );
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}
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static TW_UINT16 sane_status_to_twcc(SANE_Status rc)
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{
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switch (rc)
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{
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case SANE_STATUS_GOOD:
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return TWCC_SUCCESS;
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case SANE_STATUS_UNSUPPORTED:
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return TWCC_CAPUNSUPPORTED;
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case SANE_STATUS_JAMMED:
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return TWCC_PAPERJAM;
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case SANE_STATUS_NO_MEM:
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return TWCC_LOWMEMORY;
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case SANE_STATUS_ACCESS_DENIED:
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return TWCC_DENIED;
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case SANE_STATUS_IO_ERROR:
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case SANE_STATUS_NO_DOCS:
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case SANE_STATUS_COVER_OPEN:
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case SANE_STATUS_EOF:
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case SANE_STATUS_INVAL:
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case SANE_STATUS_CANCELLED:
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case SANE_STATUS_DEVICE_BUSY:
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default:
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return TWCC_BUMMER;
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}
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}
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static int map_type( SANE_Value_Type type )
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{
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switch (type)
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{
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case SANE_TYPE_BOOL: return TYPE_BOOL;
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case SANE_TYPE_INT: return TYPE_INT;
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case SANE_TYPE_FIXED: return TYPE_FIXED;
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case SANE_TYPE_STRING: return TYPE_STRING;
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case SANE_TYPE_BUTTON: return TYPE_BUTTON;
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case SANE_TYPE_GROUP: return TYPE_GROUP;
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default: return -1;
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}
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}
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static int map_unit( SANE_Unit unit )
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{
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switch (unit)
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{
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case SANE_UNIT_NONE: return UNIT_NONE;
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case SANE_UNIT_PIXEL: return UNIT_PIXEL;
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case SANE_UNIT_BIT: return UNIT_BIT;
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case SANE_UNIT_MM: return UNIT_MM;
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case SANE_UNIT_DPI: return UNIT_DPI;
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case SANE_UNIT_PERCENT: return UNIT_PERCENT;
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case SANE_UNIT_MICROSECOND: return UNIT_MICROSECOND;
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default: return -1;
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}
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}
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static int map_constraint_type( SANE_Constraint_Type type )
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{
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switch (type)
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{
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case SANE_CONSTRAINT_NONE: return CONSTRAINT_NONE;
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case SANE_CONSTRAINT_RANGE: return CONSTRAINT_RANGE;
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case SANE_CONSTRAINT_WORD_LIST: return CONSTRAINT_WORD_LIST;
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case SANE_CONSTRAINT_STRING_LIST: return CONSTRAINT_STRING_LIST;
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default: return CONSTRAINT_NONE;
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}
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}
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static void map_descr( struct option_descriptor *descr, const SANE_Option_Descriptor *opt )
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{
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unsigned int i, size, len = 0;
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WCHAR *p;
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descr->type = map_type( opt->type );
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descr->unit = map_unit( opt->unit );
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descr->constraint_type = map_constraint_type( opt->constraint_type );
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descr->size = opt->size;
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descr->is_active = SANE_OPTION_IS_ACTIVE( opt->cap );
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if (opt->title) len = ntdll_umbstowcs( opt->title, strlen(opt->title),
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descr->title, ARRAY_SIZE(descr->title) );
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descr->title[len] = 0;
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switch (descr->constraint_type)
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{
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case CONSTRAINT_RANGE:
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descr->constraint.range.min = opt->constraint.range->min;
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descr->constraint.range.max = opt->constraint.range->max;
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descr->constraint.range.quant = opt->constraint.range->quant;
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break;
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case CONSTRAINT_WORD_LIST:
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size = min( opt->constraint.word_list[0], ARRAY_SIZE(descr->constraint.word_list) - 1 );
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descr->constraint.word_list[0] = size;
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for (i = 1; i <= size; i++) descr->constraint.word_list[i] = opt->constraint.word_list[i];
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break;
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case CONSTRAINT_STRING_LIST:
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p = descr->constraint.strings;
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size = ARRAY_SIZE(descr->constraint.strings) - 1;
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for (i = 0; size && opt->constraint.string_list[i]; i++)
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{
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len = ntdll_umbstowcs( opt->constraint.string_list[i], strlen(opt->constraint.string_list[i]),
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p, size );
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p[len++] = 0;
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size -= len;
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p += len;
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}
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*p = 0;
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break;
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default:
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break;
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}
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}
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static NTSTATUS process_attach( void *args )
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{
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SANE_Int version_code;
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sane_init( &version_code, NULL );
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return STATUS_SUCCESS;
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}
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static NTSTATUS process_detach( void *args )
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{
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sane_exit();
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return STATUS_SUCCESS;
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}
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static NTSTATUS get_identity( void *args )
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{
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struct get_identity_params *params = args;
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TW_IDENTITY *id = params->id;
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static int cur_dev;
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detect_sane_devices();
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if (!device_list[cur_dev]) return STATUS_DEVICE_NOT_CONNECTED;
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id->ProtocolMajor = TWON_PROTOCOLMAJOR;
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id->ProtocolMinor = TWON_PROTOCOLMINOR;
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id->SupportedGroups = DG_CONTROL | DG_IMAGE | DF_DS2;
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copy_sane_short_name(device_list[cur_dev]->name, id->ProductName, sizeof(id->ProductName) - 1);
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lstrcpynA (id->Manufacturer, device_list[cur_dev]->vendor, sizeof(id->Manufacturer) - 1);
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lstrcpynA (id->ProductFamily, device_list[cur_dev]->model, sizeof(id->ProductFamily) - 1);
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cur_dev++;
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if (!device_list[cur_dev] || !device_list[cur_dev]->model ||
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!device_list[cur_dev]->vendor ||
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!device_list[cur_dev]->name)
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cur_dev = 0; /* wrap to begin */
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return STATUS_SUCCESS;
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}
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static NTSTATUS open_ds( void *args )
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{
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struct open_ds_params *params = args;
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TW_IDENTITY *id = params->id;
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SANE_Status status;
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int i;
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detect_sane_devices();
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if (!device_list[0])
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{
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ERR("No scanners? We should not get to OpenDS?\n");
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return STATUS_DEVICE_NOT_CONNECTED;
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}
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for (i = 0; device_list[i] && device_list[i]->model; i++)
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{
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TW_STR32 name;
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/* To make string as short as above */
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lstrcpynA(name, device_list[i]->vendor, sizeof(name)-1);
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if (*id->Manufacturer && strcmp(name, id->Manufacturer))
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continue;
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lstrcpynA(name, device_list[i]->model, sizeof(name)-1);
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if (*id->ProductFamily && strcmp(name, id->ProductFamily))
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continue;
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copy_sane_short_name(device_list[i]->name, name, sizeof(name) - 1);
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if (*id->ProductName && strcmp(name, id->ProductName))
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continue;
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break;
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}
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if (!device_list[i]) {
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WARN("Scanner not found.\n");
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return STATUS_DEVICE_NOT_CONNECTED;
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}
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status = sane_open( device_list[i]->name, &device_handle );
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if (status == SANE_STATUS_GOOD) return STATUS_SUCCESS;
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ERR("sane_open(%s): %s\n", device_list[i]->name, sane_strstatus (status));
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return STATUS_DEVICE_NOT_CONNECTED;
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}
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static NTSTATUS close_ds( void *args )
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{
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if (device_handle) sane_close( device_handle );
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device_handle = NULL;
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device_started = FALSE;
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return STATUS_SUCCESS;
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}
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static NTSTATUS start_device( void *args )
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{
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SANE_Status status;
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if (device_started) return STATUS_SUCCESS;
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status = sane_start( device_handle );
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if (status != SANE_STATUS_GOOD)
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{
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TRACE("sane_start returns %s\n", sane_strstatus(status));
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return STATUS_DEVICE_NOT_CONNECTED;
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}
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device_started = TRUE;
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return STATUS_SUCCESS;
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}
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static NTSTATUS cancel_device( void *args )
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{
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if (device_started) sane_cancel( device_handle );
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device_started = FALSE;
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return STATUS_SUCCESS;
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}
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static NTSTATUS read_data( void *args )
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{
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struct read_data_params *params = args;
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unsigned char *buffer = params->buffer;
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int read_len, remaining = params->len;
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SANE_Status status;
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*params->retlen = 0;
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while (remaining)
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{
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status = sane_read( device_handle, buffer, remaining, &read_len );
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if (status != SANE_STATUS_GOOD) break;
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*params->retlen += read_len;
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buffer += read_len;
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remaining -= read_len;
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}
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if (status == SANE_STATUS_EOF) return TWCC_SUCCESS;
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return sane_status_to_twcc( status );
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}
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static NTSTATUS get_params( void *args )
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{
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struct frame_parameters *params = args;
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SANE_Parameters sane_params;
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if (sane_get_parameters( device_handle, &sane_params )) return STATUS_UNSUCCESSFUL;
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switch (sane_params.format)
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{
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case SANE_FRAME_GRAY:
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params->format = FMT_GRAY;
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break;
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case SANE_FRAME_RGB:
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params->format = FMT_RGB;
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break;
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default:
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ERR("Unhandled source frame format %i\n", sane_params.format);
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params->format = FMT_OTHER;
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break;
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}
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params->last_frame = sane_params.last_frame;
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params->bytes_per_line = sane_params.bytes_per_line;
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params->pixels_per_line = sane_params.pixels_per_line;
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params->lines = sane_params.lines;
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params->depth = sane_params.depth;
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return STATUS_SUCCESS;
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}
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static NTSTATUS option_get_value( void *args )
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{
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struct option_get_value_params *params = args;
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return sane_status_to_twcc( sane_control_option( device_handle, params->optno,
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SANE_ACTION_GET_VALUE, params->val, NULL ));
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}
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static NTSTATUS option_set_value( void *args )
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{
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struct option_set_value_params *params = args;
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int status = 0;
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TW_UINT16 rc = sane_status_to_twcc( sane_control_option( device_handle, params->optno,
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SANE_ACTION_SET_VALUE, params->val, &status ));
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if (rc == TWCC_SUCCESS && params->reload)
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*params->reload = (status & (SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS | SANE_INFO_INEXACT)) != 0;
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return rc;
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}
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static NTSTATUS option_get_descriptor( void *args )
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{
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struct option_descriptor *descr = args;
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const SANE_Option_Descriptor *opt = sane_get_option_descriptor( device_handle, descr->optno );
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if (!opt) return STATUS_NO_MORE_ENTRIES;
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map_descr( descr, opt );
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return STATUS_SUCCESS;
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}
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static NTSTATUS option_find_descriptor( void *args )
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{
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struct option_find_descriptor_params *params = args;
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struct option_descriptor *descr = params->descr;
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const SANE_Option_Descriptor *opt;
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int i;
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for (i = 1; (opt = sane_get_option_descriptor( device_handle, i )) != NULL; i++)
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{
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if (params->type != map_type( opt->type )) continue;
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if (strcmp( params->name, opt->name )) continue;
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descr->optno = i;
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map_descr( descr, opt );
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return STATUS_SUCCESS;
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}
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return STATUS_NO_MORE_ENTRIES;
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}
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unixlib_entry_t __wine_unix_call_funcs[] =
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{
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process_attach,
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process_detach,
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get_identity,
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open_ds,
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close_ds,
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start_device,
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cancel_device,
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read_data,
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get_params,
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option_get_value,
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option_set_value,
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option_get_descriptor,
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option_find_descriptor,
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};
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