mirror of
git://source.winehq.org/git/wine.git
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334 lines
9.4 KiB
C
334 lines
9.4 KiB
C
/*
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* TWAIN32 Source Manager
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*
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* Copyright 2000 Corel Corporation
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* Copyright 2006 Marcus Meissner
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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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#include "config.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "twain.h"
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#include "twain_i.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(twain);
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static TW_UINT16 DSM_initialized; /* whether Source Manager is initialized */
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static TW_UINT32 DSM_sourceId; /* source id generator */
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static TW_UINT16 DSM_currentDevice; /* keep track of device during enumeration */
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struct all_devices {
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char *modname;
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TW_IDENTITY identity;
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};
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static int nrdevices = 0;
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static struct all_devices *devices = NULL;
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static void
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twain_add_onedriver(const char *dsname) {
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HMODULE hmod;
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DSENTRYPROC dsEntry;
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TW_IDENTITY fakeOrigin;
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TW_IDENTITY sourceId;
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TW_UINT16 ret;
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hmod = LoadLibraryA(dsname);
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if (!hmod) {
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ERR("Failed to load TWAIN Source %s\n", dsname);
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return;
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}
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dsEntry = (DSENTRYPROC)GetProcAddress(hmod, "DS_Entry");
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if (!dsEntry) {
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ERR("Failed to find DS_Entry() in TWAIN DS %s\n", dsname);
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return;
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}
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/* Loop to do multiple detects, mostly for sane.ds and gphoto2.ds */
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do {
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int i;
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sourceId.Id = DSM_sourceId;
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sourceId.ProtocolMajor = TWON_PROTOCOLMAJOR;
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sourceId.ProtocolMinor = TWON_PROTOCOLMINOR;
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ret = dsEntry (&fakeOrigin, DG_CONTROL, DAT_IDENTITY, MSG_GET, &sourceId);
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if (ret != TWRC_SUCCESS) {
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ERR("Source->(DG_CONTROL,DAT_IDENTITY,MSG_GET) failed!\n");
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return;
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}
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TRACE("Manufacturer: %s\n", debugstr_a(sourceId.Manufacturer));
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TRACE("ProductFamily: %s\n", debugstr_a(sourceId.ProductFamily));
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TRACE("ProductName: %s\n", debugstr_a(sourceId.ProductName));
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for (i=0;i<nrdevices;i++) {
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if (!strcmp(sourceId.ProductName,devices[i].identity.ProductName))
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break;
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}
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if (i < nrdevices)
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break;
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if (nrdevices)
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devices = HeapReAlloc(GetProcessHeap(), 0, devices, sizeof(devices[0])*(nrdevices+1));
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else
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devices = HeapAlloc(GetProcessHeap(), 0, sizeof(devices[0]));
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if ((devices[nrdevices].modname = HeapAlloc(GetProcessHeap(), 0, strlen(dsname) + 1)))
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lstrcpyA(devices[nrdevices].modname, dsname);
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devices[nrdevices].identity = sourceId;
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nrdevices++;
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DSM_sourceId++;
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} while (1);
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FreeLibrary (hmod);
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}
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static int detectionrun = 0;
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static void
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twain_autodetect(void) {
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if (detectionrun) return;
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detectionrun = 1;
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twain_add_onedriver("sane.ds");
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twain_add_onedriver("gphoto2.ds");
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#if 0
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twain_add_onedriver("c:\\windows\\Twain_32\\Largan\\sp503a.ds");
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twain_add_onedriver("c:\\windows\\Twain_32\\vivicam10\\vivicam10.ds");
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twain_add_onedriver("c:\\windows\\Twain_32\\ws30slim\\sp500a.ds");
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#endif
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_CLOSEDS */
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TW_UINT16 TWAIN_CloseDS (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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TW_UINT16 twRC = TWRC_SUCCESS;
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pTW_IDENTITY pIdentity = (pTW_IDENTITY) pData;
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activeDS *currentDS = NULL, *prevDS = NULL;
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TRACE ("DG_CONTROL/DAT_IDENTITY/MSG_CLOSEDS\n");
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for (currentDS = activeSources; currentDS; currentDS = currentDS->next) {
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if (currentDS->identity.Id == pIdentity->Id)
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break;
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prevDS = currentDS;
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}
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if (!currentDS) {
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DSM_twCC = TWCC_NODS;
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return TWRC_FAILURE;
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}
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twRC = currentDS->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_CLOSEDS, pData);
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/* This causes crashes due to still open Windows, so leave out for now.
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* FreeLibrary (currentDS->hmod);
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*/
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if (prevDS)
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prevDS->next = currentDS->next;
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else
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activeSources = currentDS->next;
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HeapFree (GetProcessHeap(), 0, currentDS);
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if (twRC == TWRC_SUCCESS)
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DSM_twCC = TWCC_SUCCESS;
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else /* FIXME: unclear how to get TWCC */
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DSM_twCC = TWCC_SEQERROR;
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return twRC;
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_GETDEFAULT */
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TW_UINT16 TWAIN_IdentityGetDefault (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
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TRACE("DG_CONTROL/DAT_IDENTITY/MSG_GETDEFAULT\n");
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DSM_twCC = TWCC_NODS;
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twain_autodetect();
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if (!nrdevices)
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return TWRC_FAILURE;
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*pSourceIdentity = devices[0].identity;
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DSM_twCC = TWCC_SUCCESS;
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return TWRC_SUCCESS;
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_GETFIRST */
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TW_UINT16 TWAIN_IdentityGetFirst (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
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TRACE ("DG_CONTROL/DAT_IDENTITY/MSG_GETFIRST\n");
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twain_autodetect();
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if (!nrdevices) {
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TRACE ("no entries found.\n");
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DSM_twCC = TWCC_NODS;
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return TWRC_FAILURE;
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}
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DSM_currentDevice = 0;
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*pSourceIdentity = devices[DSM_currentDevice++].identity;
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return TWRC_SUCCESS;
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_GETNEXT */
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TW_UINT16 TWAIN_IdentityGetNext (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
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TRACE("DG_CONTROL/DAT_IDENTITY/MSG_GETNEXT\n");
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if (!nrdevices || (DSM_currentDevice == nrdevices)) {
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DSM_twCC = TWCC_SUCCESS;
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return TWRC_ENDOFLIST;
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}
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*pSourceIdentity = devices[DSM_currentDevice++].identity;
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return TWRC_SUCCESS;
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_OPENDS */
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TW_UINT16 TWAIN_OpenDS (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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TW_UINT16 i = 0;
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pTW_IDENTITY pIdentity = (pTW_IDENTITY) pData;
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activeDS *newSource;
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const char *modname = NULL;
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HMODULE hmod;
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TRACE("DG_CONTROL/DAT_IDENTITY/MSG_OPENDS\n");
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TRACE("pIdentity is %s\n", pIdentity->ProductName);
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if (!DSM_initialized) {
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FIXME("seq error\n");
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DSM_twCC = TWCC_SEQERROR;
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return TWRC_FAILURE;
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}
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twain_autodetect();
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if (!nrdevices) {
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FIXME("no devs.\n");
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DSM_twCC = TWCC_NODS;
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return TWRC_FAILURE;
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}
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if (pIdentity->ProductName[0] != '\0') {
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/* Make sure the source to be opened exists in the device list */
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for (i = 0; i<nrdevices; i++)
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if (!strcmp (devices[i].identity.ProductName, pIdentity->ProductName))
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break;
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if (i == nrdevices)
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i = 0;
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} /* else use the first device */
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/* the source is found in the device list */
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newSource = HeapAlloc (GetProcessHeap(), 0, sizeof (activeDS));
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if (!newSource) {
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DSM_twCC = TWCC_LOWMEMORY;
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FIXME("Out of memory.\n");
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return TWRC_FAILURE;
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}
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hmod = LoadLibraryA(devices[i].modname);
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if (!hmod) {
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ERR("Failed to load TWAIN Source %s\n", modname);
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DSM_twCC = TWCC_OPERATIONERROR;
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HeapFree(GetProcessHeap(), 0, newSource);
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return TWRC_FAILURE;
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}
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newSource->hmod = hmod;
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newSource->dsEntry = (DSENTRYPROC)GetProcAddress(hmod, "DS_Entry");
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if (TWRC_SUCCESS != newSource->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_OPENDS, pIdentity)) {
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DSM_twCC = TWCC_OPERATIONERROR;
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HeapFree(GetProcessHeap(), 0, newSource);
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return TWRC_FAILURE;
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}
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/* Assign name and id for the opened data source */
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pIdentity->Id = DSM_sourceId ++;
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/* add the data source to an internal active source list */
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newSource->next = activeSources;
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newSource->identity.Id = pIdentity->Id;
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strcpy (newSource->identity.ProductName, pIdentity->ProductName);
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activeSources = newSource;
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DSM_twCC = TWCC_SUCCESS;
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return TWRC_SUCCESS;
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}
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/* DG_CONTROL/DAT_IDENTITY/MSG_USERSELECT */
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TW_UINT16 TWAIN_UserSelect (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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pTW_IDENTITY selected = (pTW_IDENTITY)pData;
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if (!nrdevices) {
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DSM_twCC = TWCC_OPERATIONERROR;
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return TWRC_FAILURE;
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}
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*selected = devices[0].identity;
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DSM_twCC = TWCC_SUCCESS;
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return TWRC_SUCCESS;
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}
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/* DG_CONTROL/DAT_PARENT/MSG_CLOSEDSM */
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TW_UINT16 TWAIN_CloseDSM (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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activeDS *currentDS = activeSources, *nextDS;
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TRACE("DG_CONTROL/DAT_PARENT/MSG_CLOSEDSM\n");
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if (DSM_initialized)
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{
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DSM_initialized = FALSE;
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/* If there are data sources still open, close them now. */
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while (currentDS != NULL)
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{
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nextDS = currentDS->next;
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currentDS->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_CLOSEDS, pData);
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HeapFree (GetProcessHeap(), 0, currentDS);
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currentDS = nextDS;
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}
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activeSources = NULL;
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DSM_twCC = TWCC_SUCCESS;
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return TWRC_SUCCESS;
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} else {
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DSM_twCC = TWCC_SEQERROR;
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return TWRC_FAILURE;
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}
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}
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/* DG_CONTROL/DAT_PARENT/MSG_OPENDSM */
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TW_UINT16 TWAIN_OpenDSM (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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TW_UINT16 twRC = TWRC_SUCCESS;
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TRACE("DG_CONTROL/DAT_PARENT/MSG_OPENDSM\n");
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if (!DSM_initialized) {
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DSM_currentDevice = 0;
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DSM_initialized = TRUE;
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DSM_twCC = TWCC_SUCCESS;
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twRC = TWRC_SUCCESS;
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} else {
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/* operation invoked in invalid state */
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DSM_twCC = TWCC_SEQERROR;
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twRC = TWRC_FAILURE;
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}
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return twRC;
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}
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/* DG_CONTROL/DAT_STATUS/MSG_GET */
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TW_UINT16 TWAIN_GetDSMStatus (pTW_IDENTITY pOrigin, TW_MEMREF pData)
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{
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pTW_STATUS pSourceStatus = (pTW_STATUS) pData;
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TRACE ("DG_CONTROL/DAT_STATUS/MSG_GET\n");
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pSourceStatus->ConditionCode = DSM_twCC;
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DSM_twCC = TWCC_SUCCESS; /* clear the condition code */
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return TWRC_SUCCESS;
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}
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