Sweden-Number/dlls/twain_32/dsm_ctrl.c

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/*
* TWAIN32 Source Manager
*
* Copyright 2000 Corel Corporation
* Copyright 2006 Marcus Meissner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "twain.h"
#include "twain_i.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(twain);
static TW_UINT16 DSM_initialized; /* whether Source Manager is initialized */
static TW_UINT32 DSM_sourceId; /* source id generator */
static TW_UINT16 DSM_currentDevice; /* keep track of device during enumeration */
struct all_devices {
char *modname;
TW_IDENTITY identity;
};
static int nrdevices = 0;
static struct all_devices *devices = NULL;
static void
twain_add_onedriver(const char *dsname) {
HMODULE hmod;
DSENTRYPROC dsEntry;
TW_IDENTITY fakeOrigin;
TW_IDENTITY sourceId;
TW_UINT16 ret;
hmod = LoadLibraryA(dsname);
if (!hmod) {
ERR("Failed to load TWAIN Source %s\n", dsname);
return;
}
dsEntry = (DSENTRYPROC)GetProcAddress(hmod, "DS_Entry");
if (!dsEntry) {
ERR("Failed to find DS_Entry() in TWAIN DS %s\n", dsname);
return;
}
/* Loop to do multiple detects, mostly for sane.ds and gphoto2.ds */
do {
int i;
sourceId.Id = DSM_sourceId;
sourceId.ProtocolMajor = TWON_PROTOCOLMAJOR;
sourceId.ProtocolMinor = TWON_PROTOCOLMINOR;
ret = dsEntry (&fakeOrigin, DG_CONTROL, DAT_IDENTITY, MSG_GET, &sourceId);
if (ret != TWRC_SUCCESS) {
ERR("Source->(DG_CONTROL,DAT_IDENTITY,MSG_GET) failed!\n");
return;
}
TRACE("Manufacturer: %s\n", debugstr_a(sourceId.Manufacturer));
TRACE("ProductFamily: %s\n", debugstr_a(sourceId.ProductFamily));
TRACE("ProductName: %s\n", debugstr_a(sourceId.ProductName));
for (i=0;i<nrdevices;i++) {
if (!strcmp(sourceId.ProductName,devices[i].identity.ProductName))
break;
}
if (i < nrdevices)
break;
if (nrdevices)
devices = HeapReAlloc(GetProcessHeap(), 0, devices, sizeof(devices[0])*(nrdevices+1));
else
devices = HeapAlloc(GetProcessHeap(), 0, sizeof(devices[0]));
if ((devices[nrdevices].modname = HeapAlloc(GetProcessHeap(), 0, strlen(dsname) + 1)))
lstrcpyA(devices[nrdevices].modname, dsname);
devices[nrdevices].identity = sourceId;
nrdevices++;
DSM_sourceId++;
} while (1);
FreeLibrary (hmod);
}
static int detectionrun = 0;
static void
twain_autodetect(void) {
if (detectionrun) return;
detectionrun = 1;
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twain_add_onedriver("sane.ds");
twain_add_onedriver("gphoto2.ds");
#if 0
twain_add_onedriver("c:\\windows\\Twain_32\\Largan\\sp503a.ds");
twain_add_onedriver("c:\\windows\\Twain_32\\vivicam10\\vivicam10.ds");
twain_add_onedriver("c:\\windows\\Twain_32\\ws30slim\\sp500a.ds");
#endif
}
/* DG_CONTROL/DAT_IDENTITY/MSG_CLOSEDS */
TW_UINT16 TWAIN_CloseDS (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
TW_UINT16 twRC = TWRC_SUCCESS;
pTW_IDENTITY pIdentity = (pTW_IDENTITY) pData;
activeDS *currentDS = NULL, *prevDS = NULL;
TRACE ("DG_CONTROL/DAT_IDENTITY/MSG_CLOSEDS\n");
for (currentDS = activeSources; currentDS; currentDS = currentDS->next) {
if (currentDS->identity.Id == pIdentity->Id)
break;
prevDS = currentDS;
}
if (!currentDS) {
DSM_twCC = TWCC_NODS;
return TWRC_FAILURE;
}
twRC = currentDS->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_CLOSEDS, pData);
/* This causes crashes due to still open Windows, so leave out for now.
* FreeLibrary (currentDS->hmod);
*/
if (prevDS)
prevDS->next = currentDS->next;
else
activeSources = currentDS->next;
HeapFree (GetProcessHeap(), 0, currentDS);
if (twRC == TWRC_SUCCESS)
DSM_twCC = TWCC_SUCCESS;
else /* FIXME: unclear how to get TWCC */
DSM_twCC = TWCC_SEQERROR;
return twRC;
}
/* DG_CONTROL/DAT_IDENTITY/MSG_GETDEFAULT */
TW_UINT16 TWAIN_IdentityGetDefault (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
TRACE("DG_CONTROL/DAT_IDENTITY/MSG_GETDEFAULT\n");
DSM_twCC = TWCC_NODS;
twain_autodetect();
if (!nrdevices)
return TWRC_FAILURE;
*pSourceIdentity = devices[0].identity;
DSM_twCC = TWCC_SUCCESS;
return TWRC_SUCCESS;
}
/* DG_CONTROL/DAT_IDENTITY/MSG_GETFIRST */
TW_UINT16 TWAIN_IdentityGetFirst (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
TRACE ("DG_CONTROL/DAT_IDENTITY/MSG_GETFIRST\n");
twain_autodetect();
if (!nrdevices) {
TRACE ("no entries found.\n");
DSM_twCC = TWCC_NODS;
return TWRC_FAILURE;
}
DSM_currentDevice = 0;
*pSourceIdentity = devices[DSM_currentDevice++].identity;
return TWRC_SUCCESS;
}
/* DG_CONTROL/DAT_IDENTITY/MSG_GETNEXT */
TW_UINT16 TWAIN_IdentityGetNext (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
pTW_IDENTITY pSourceIdentity = (pTW_IDENTITY) pData;
TRACE("DG_CONTROL/DAT_IDENTITY/MSG_GETNEXT\n");
if (!nrdevices || (DSM_currentDevice == nrdevices)) {
DSM_twCC = TWCC_SUCCESS;
return TWRC_ENDOFLIST;
}
*pSourceIdentity = devices[DSM_currentDevice++].identity;
return TWRC_SUCCESS;
}
/* DG_CONTROL/DAT_IDENTITY/MSG_OPENDS */
TW_UINT16 TWAIN_OpenDS (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
TW_UINT16 i = 0;
pTW_IDENTITY pIdentity = (pTW_IDENTITY) pData;
activeDS *newSource;
const char *modname = NULL;
HMODULE hmod;
TRACE("DG_CONTROL/DAT_IDENTITY/MSG_OPENDS\n");
TRACE("pIdentity is %s\n", pIdentity->ProductName);
if (!DSM_initialized) {
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FIXME("seq error\n");
DSM_twCC = TWCC_SEQERROR;
return TWRC_FAILURE;
}
twain_autodetect();
if (!nrdevices) {
FIXME("no devs.\n");
DSM_twCC = TWCC_NODS;
return TWRC_FAILURE;
}
if (pIdentity->ProductName[0] != '\0') {
/* Make sure the source to be opened exists in the device list */
for (i = 0; i<nrdevices; i++)
if (!strcmp (devices[i].identity.ProductName, pIdentity->ProductName))
break;
if (i == nrdevices)
i = 0;
} /* else use the first device */
/* the source is found in the device list */
newSource = HeapAlloc (GetProcessHeap(), 0, sizeof (activeDS));
if (!newSource) {
DSM_twCC = TWCC_LOWMEMORY;
FIXME("Out of memory.\n");
return TWRC_FAILURE;
}
hmod = LoadLibraryA(devices[i].modname);
if (!hmod) {
ERR("Failed to load TWAIN Source %s\n", modname);
DSM_twCC = TWCC_OPERATIONERROR;
HeapFree(GetProcessHeap(), 0, newSource);
return TWRC_FAILURE;
}
newSource->hmod = hmod;
newSource->dsEntry = (DSENTRYPROC)GetProcAddress(hmod, "DS_Entry");
if (TWRC_SUCCESS != newSource->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_OPENDS, pIdentity)) {
DSM_twCC = TWCC_OPERATIONERROR;
HeapFree(GetProcessHeap(), 0, newSource);
return TWRC_FAILURE;
}
/* Assign name and id for the opened data source */
pIdentity->Id = DSM_sourceId ++;
/* add the data source to an internal active source list */
newSource->next = activeSources;
newSource->identity.Id = pIdentity->Id;
strcpy (newSource->identity.ProductName, pIdentity->ProductName);
activeSources = newSource;
DSM_twCC = TWCC_SUCCESS;
return TWRC_SUCCESS;
}
/* DG_CONTROL/DAT_IDENTITY/MSG_USERSELECT */
TW_UINT16 TWAIN_UserSelect (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
pTW_IDENTITY selected = (pTW_IDENTITY)pData;
if (!nrdevices) {
DSM_twCC = TWCC_OPERATIONERROR;
return TWRC_FAILURE;
}
*selected = devices[0].identity;
DSM_twCC = TWCC_SUCCESS;
return TWRC_SUCCESS;
}
/* DG_CONTROL/DAT_PARENT/MSG_CLOSEDSM */
TW_UINT16 TWAIN_CloseDSM (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
activeDS *currentDS = activeSources, *nextDS;
TRACE("DG_CONTROL/DAT_PARENT/MSG_CLOSEDSM\n");
if (DSM_initialized)
{
DSM_initialized = FALSE;
/* If there are data sources still open, close them now. */
while (currentDS != NULL)
{
nextDS = currentDS->next;
currentDS->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_CLOSEDS, pData);
HeapFree (GetProcessHeap(), 0, currentDS);
currentDS = nextDS;
}
activeSources = NULL;
DSM_twCC = TWCC_SUCCESS;
return TWRC_SUCCESS;
} else {
DSM_twCC = TWCC_SEQERROR;
return TWRC_FAILURE;
}
}
/* DG_CONTROL/DAT_PARENT/MSG_OPENDSM */
TW_UINT16 TWAIN_OpenDSM (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
TW_UINT16 twRC = TWRC_SUCCESS;
TRACE("DG_CONTROL/DAT_PARENT/MSG_OPENDSM\n");
if (!DSM_initialized) {
DSM_currentDevice = 0;
DSM_initialized = TRUE;
DSM_twCC = TWCC_SUCCESS;
twRC = TWRC_SUCCESS;
} else {
/* operation invoked in invalid state */
DSM_twCC = TWCC_SEQERROR;
twRC = TWRC_FAILURE;
}
return twRC;
}
/* DG_CONTROL/DAT_STATUS/MSG_GET */
TW_UINT16 TWAIN_GetDSMStatus (pTW_IDENTITY pOrigin, TW_MEMREF pData)
{
pTW_STATUS pSourceStatus = (pTW_STATUS) pData;
TRACE ("DG_CONTROL/DAT_STATUS/MSG_GET\n");
pSourceStatus->ConditionCode = DSM_twCC;
DSM_twCC = TWCC_SUCCESS; /* clear the condition code */
return TWRC_SUCCESS;
}