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sane.ds: More completely implement ICAP_XFERMECH, with helper functions.

This commit is contained in:
Jeremy White 2009-02-05 16:23:29 -06:00 committed by Alexandre Julliard
parent 25624b677d
commit 0639904cc2
1 changed files with 119 additions and 53 deletions
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172
dlls/sane.ds/capability.c
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@ -183,6 +183,98 @@ TW_UINT16 SANE_SaneCapability (pTW_CAPABILITY pCapability, TW_UINT16 action)
return twCC; return twCC;
} }
static TW_UINT16 get_onevalue(pTW_CAPABILITY pCapability, TW_UINT16 *type, TW_UINT32 *value)
{
if (pCapability->hContainer)
{
pTW_ONEVALUE pVal = GlobalLock (pCapability->hContainer);
if (pVal)
{
*value = pVal->Item;
if (type)
*type = pVal->ItemType;
GlobalUnlock (pCapability->hContainer);
return TWCC_SUCCESS;
}
}
return TWCC_BUMMER;
}
static TW_UINT16 set_onevalue(pTW_CAPABILITY pCapability, TW_UINT16 type, TW_UINT32 value)
{
pCapability->hContainer = GlobalAlloc (0, sizeof(TW_ONEVALUE));
if (pCapability->hContainer)
{
pTW_ONEVALUE pVal = GlobalLock (pCapability->hContainer);
if (pVal)
{
pCapability->ConType = TWON_ONEVALUE;
pVal->ItemType = type;
pVal->Item = value;
GlobalUnlock (pCapability->hContainer);
return TWCC_SUCCESS;
}
}
return TWCC_LOWMEMORY;
}
static TW_UINT16 msg_set(pTW_CAPABILITY pCapability, TW_UINT32 *val)
{
if (pCapability->ConType == TWON_ONEVALUE)
return get_onevalue(pCapability, NULL, val);
FIXME("Partial Stub: MSG_SET only supports TW_ONEVALUE\n");
return TWCC_BADCAP;
}
static TW_UINT16 msg_get_enum(pTW_CAPABILITY pCapability, const TW_UINT32 *values, int value_count,
TW_UINT16 type, TW_UINT32 current, TW_UINT32 default_value)
{
TW_ENUMERATION *enumv = NULL;
TW_UINT32 *p32;
TW_UINT16 *p16;
int i;
pCapability->ConType = TWON_ENUMERATION;
pCapability->hContainer = 0;
if (type == TWTY_INT16 || type == TWTY_UINT16)
pCapability->hContainer = GlobalAlloc (0, FIELD_OFFSET( TW_ENUMERATION, ItemList[value_count * sizeof(TW_UINT16)]));
if (type == TWTY_INT32 || type == TWTY_UINT32)
pCapability->hContainer = GlobalAlloc (0, FIELD_OFFSET( TW_ENUMERATION, ItemList[value_count * sizeof(TW_UINT32)]));
if (pCapability->hContainer)
enumv = GlobalLock(pCapability->hContainer);
if (! enumv)
return TWCC_LOWMEMORY;
enumv->ItemType = type;
enumv->NumItems = value_count;
p16 = (TW_UINT16 *) enumv->ItemList;
p32 = (TW_UINT32 *) enumv->ItemList;
for (i = 0; i < value_count; i++)
{
if (values[i] == current)
enumv->CurrentIndex = i;
if (values[i] == default_value)
enumv->DefaultIndex = i;
if (type == TWTY_INT16 || type == TWTY_UINT16)
p16[i] = values[i];
if (type == TWTY_INT32 || type == TWTY_UINT32)
p32[i] = values[i];
}
GlobalUnlock(pCapability->hContainer);
return TWCC_SUCCESS;
}
static TW_UINT16 TWAIN_GetSupportedCaps(pTW_CAPABILITY pCapability) static TW_UINT16 TWAIN_GetSupportedCaps(pTW_CAPABILITY pCapability)
{ {
TW_ARRAY *a; TW_ARRAY *a;
@ -209,74 +301,48 @@ static TW_UINT16 TWAIN_GetSupportedCaps(pTW_CAPABILITY pCapability)
} }
static TW_BOOL TWAIN_OneValueSet (pTW_CAPABILITY pCapability, TW_UINT32 value)
{
pCapability->hContainer = GlobalAlloc (0, sizeof(TW_ONEVALUE));
if (pCapability->hContainer)
{
pTW_ONEVALUE pVal = GlobalLock (pCapability->hContainer);
pVal->ItemType = TWTY_UINT32;
pVal->Item = value;
GlobalUnlock (pCapability->hContainer);
return TRUE;
}
else
return FALSE;
}
static TW_BOOL TWAIN_OneValueGet (pTW_CAPABILITY pCapability, TW_UINT32 *pValue)
{
pTW_ONEVALUE pVal = GlobalLock (pCapability->hContainer);
if (pVal)
{
*pValue = pVal->Item;
GlobalUnlock (pCapability->hContainer);
return TRUE;
}
else
return FALSE;
}
/* ICAP_XFERMECH */ /* ICAP_XFERMECH */
static TW_UINT16 SANE_ICAPXferMech (pTW_CAPABILITY pCapability, TW_UINT16 action) static TW_UINT16 SANE_ICAPXferMech (pTW_CAPABILITY pCapability, TW_UINT16 action)
{ {
static const TW_UINT32 possible_values[] = { TWSX_NATIVE, TWSX_MEMORY };
TW_UINT32 val;
TW_UINT16 twCC = TWCC_BADCAP;
TRACE("ICAP_XFERMECH\n"); TRACE("ICAP_XFERMECH\n");
switch (action) switch (action)
{ {
case MSG_GET: case MSG_QUERYSUPPORT:
if (pCapability->ConType == TWON_ONEVALUE) twCC = set_onevalue(pCapability, TWTY_INT32,
{ TWQC_GET | TWQC_SET | TWQC_GETDEFAULT | TWQC_GETCURRENT | TWQC_RESET );
if (!TWAIN_OneValueSet (pCapability, activeDS.capXferMech))
return TWCC_LOWMEMORY;
}
break; break;
case MSG_SET:
if (pCapability->ConType == TWON_ONEVALUE)
{
TW_UINT32 xfermechtemp = 0;
if (!TWAIN_OneValueGet (pCapability, &xfermechtemp))
return TWCC_LOWMEMORY;
activeDS.capXferMech = xfermechtemp;
}
else if (pCapability->ConType == TWON_ENUMERATION)
{
case MSG_GET:
twCC = msg_get_enum(pCapability, possible_values, sizeof(possible_values) / sizeof(possible_values[0]),
TWTY_UINT16, activeDS.capXferMech, TWSX_NATIVE);
break;
case MSG_SET:
twCC = msg_set(pCapability, &val);
if (twCC == TWCC_SUCCESS)
{
activeDS.capXferMech = (TW_UINT16) val;
FIXME("Partial Stub: XFERMECH set to %d, but ignored\n", val);
} }
break; break;
case MSG_GETCURRENT:
if (!TWAIN_OneValueSet (pCapability, activeDS.capXferMech))
return TWCC_LOWMEMORY;
break;
case MSG_GETDEFAULT: case MSG_GETDEFAULT:
if (!TWAIN_OneValueSet (pCapability, TWSX_NATIVE)) twCC = set_onevalue(pCapability, TWTY_UINT16, TWSX_NATIVE);
return TWCC_LOWMEMORY;
break; break;
case MSG_RESET: case MSG_RESET:
activeDS.capXferMech = TWSX_NATIVE; activeDS.capXferMech = TWSX_NATIVE;
/* .. fall through intentional .. */
case MSG_GETCURRENT:
twCC = set_onevalue(pCapability, TWTY_UINT16, activeDS.capXferMech);
FIXME("Partial Stub: XFERMECH of %d not actually used\n", activeDS.capXferMech);
break; break;
} }
return TWCC_SUCCESS; return twCC;
} }