Sweden-Number/dlls/msdmo/dmoreg.c

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/*
2008-10-18 19:20:10 +02:00
* Copyright (C) 2003 Michael Günnewig
* Copyright (C) 2003 CodeWeavers Inc. (Ulrich Czekalla)
*
* 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 <stdarg.h>
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#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "winreg.h"
#include "objbase.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "dmo.h"
WINE_DEFAULT_DEBUG_CHANNEL(msdmo);
#define MSDMO_MAJOR_VERSION 6
static const WCHAR szDMORootKey[] =
{
'D','i','r','e','c','t','S','h','o','w','\\',
'M','e','d','i','a','O','b','j','e','c','t','s',0
};
static const WCHAR szDMOInputType[] =
{
'I','n','p','u','t','T','y','p','e','s',0
};
static const WCHAR szDMOOutputType[] =
{
'O','u','t','p','u','t','T','y','p','e','s',0
};
static const WCHAR szDMOKeyed[] =
{
'K','e','y','e','d',0
};
static const WCHAR szDMOCategories[] =
{
'C','a','t','e','g','o','r','i','e','s',0
};
static const WCHAR szGUIDFmt[] =
{
'%','0','8','X','-','%','0','4','X','-','%','0','4','X','-','%','0',
'2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','%','0','2',
'X','%','0','2','X','%','0','2','X','%','0','2','X',0
};
static const WCHAR szCat3Fmt[] =
{
'%','s','\\','%','s','\\','%','s',0
};
static const WCHAR szCat2Fmt[] =
{
'%','s','\\','%','s',0
};
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static const WCHAR szToGuidFmt[] =
{
'{','%','s','}',0
};
typedef struct
{
IEnumDMO IEnumDMO_iface;
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LONG ref;
DWORD index;
GUID category;
DWORD dwFlags;
DWORD cInTypes;
DMO_PARTIAL_MEDIATYPE *pInTypes;
DWORD cOutTypes;
DMO_PARTIAL_MEDIATYPE *pOutTypes;
HKEY hkey;
} IEnumDMOImpl;
static inline IEnumDMOImpl *impl_from_IEnumDMO(IEnumDMO *iface)
{
return CONTAINING_RECORD(iface, IEnumDMOImpl, IEnumDMO_iface);
}
static HRESULT read_types(HKEY root, LPCWSTR key, ULONG *supplied, ULONG requested, DMO_PARTIAL_MEDIATYPE* types);
static const IEnumDMOVtbl edmovt;
static LPWSTR GUIDToString(LPWSTR lpwstr, REFGUID lpcguid)
{
wsprintfW(lpwstr, szGUIDFmt, lpcguid->Data1, lpcguid->Data2,
lpcguid->Data3, lpcguid->Data4[0], lpcguid->Data4[1],
lpcguid->Data4[2], lpcguid->Data4[3], lpcguid->Data4[4],
lpcguid->Data4[5], lpcguid->Data4[6], lpcguid->Data4[7]);
return lpwstr;
}
static HRESULT string_to_guid(const WCHAR *string, GUID *guid)
{
WCHAR buffer[39];
buffer[0] = '{';
strcpyW(buffer + 1, string);
buffer[37] = '}';
buffer[38] = 0;
return CLSIDFromString(buffer, guid);
}
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static BOOL IsMediaTypeEqual(const DMO_PARTIAL_MEDIATYPE* mt1, const DMO_PARTIAL_MEDIATYPE* mt2)
{
return (IsEqualCLSID(&mt1->type, &mt2->type) ||
IsEqualCLSID(&mt2->type, &GUID_NULL) ||
IsEqualCLSID(&mt1->type, &GUID_NULL)) &&
(IsEqualCLSID(&mt1->subtype, &mt2->subtype) ||
IsEqualCLSID(&mt2->subtype, &GUID_NULL) ||
IsEqualCLSID(&mt1->subtype, &GUID_NULL));
}
static HRESULT write_types(HKEY hkey, LPCWSTR name, const DMO_PARTIAL_MEDIATYPE* types, DWORD count)
{
LONG ret;
if (MSDMO_MAJOR_VERSION > 5)
{
ret = RegSetValueExW(hkey, name, 0, REG_BINARY, (const BYTE*) types,
count* sizeof(DMO_PARTIAL_MEDIATYPE));
}
else
{
HKEY skey1,skey2,skey3;
DWORD index = 0;
WCHAR szGuidKey[64];
ret = RegCreateKeyExW(hkey, name, 0, NULL, REG_OPTION_NON_VOLATILE,
KEY_WRITE, NULL, &skey1, NULL);
if (ret)
return HRESULT_FROM_WIN32(ret);
while (index < count)
{
GUIDToString(szGuidKey,&types[index].type);
ret = RegCreateKeyExW(skey1, szGuidKey, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &skey2, NULL);
GUIDToString(szGuidKey,&types[index].subtype);
ret = RegCreateKeyExW(skey2, szGuidKey, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &skey3, NULL);
RegCloseKey(skey3);
RegCloseKey(skey2);
index ++;
}
RegCloseKey(skey1);
}
return HRESULT_FROM_WIN32(ret);
}
/***************************************************************
* DMORegister (MSDMO.@)
*
* Register a DirectX Media Object.
*/
HRESULT WINAPI DMORegister(
LPCWSTR szName,
REFCLSID clsidDMO,
REFGUID guidCategory,
DWORD dwFlags,
DWORD cInTypes,
const DMO_PARTIAL_MEDIATYPE *pInTypes,
DWORD cOutTypes,
const DMO_PARTIAL_MEDIATYPE *pOutTypes
)
{
WCHAR szguid[64];
HRESULT hres;
HKEY hrkey = 0;
HKEY hkey = 0;
HKEY hckey = 0;
HKEY hclskey = 0;
LONG ret;
TRACE("%s %s %s\n", debugstr_w(szName), debugstr_guid(clsidDMO), debugstr_guid(guidCategory));
if (IsEqualGUID(guidCategory, &GUID_NULL))
return E_INVALIDARG;
ret = RegCreateKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hrkey, NULL);
if (ret)
return E_FAIL;
/* Create clsidDMO key under MediaObjects */
ret = RegCreateKeyExW(hrkey, GUIDToString(szguid, clsidDMO), 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, NULL);
if (ret)
goto lend;
/* Set default Name value */
ret = RegSetValueExW(hkey, NULL, 0, REG_SZ, (const BYTE*) szName,
(strlenW(szName) + 1) * sizeof(WCHAR));
/* Set InputTypes */
hres = write_types(hkey, szDMOInputType, pInTypes, cInTypes);
/* Set OutputTypes */
hres = write_types(hkey, szDMOOutputType, pOutTypes, cOutTypes);
if (dwFlags & DMO_REGISTERF_IS_KEYED)
{
/* Create Keyed key */
ret = RegCreateKeyExW(hkey, szDMOKeyed, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hckey, NULL);
if (ret)
goto lend;
RegCloseKey(hckey);
}
/* Register the category */
ret = RegCreateKeyExW(hrkey, szDMOCategories, 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hckey, NULL);
if (ret)
goto lend;
RegCloseKey(hkey);
ret = RegCreateKeyExW(hckey, GUIDToString(szguid, guidCategory), 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, NULL);
if (ret)
goto lend;
ret = RegCreateKeyExW(hkey, GUIDToString(szguid, clsidDMO), 0, NULL,
REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hclskey, NULL);
if (ret)
goto lend;
lend:
if (hkey)
RegCloseKey(hkey);
if (hckey)
RegCloseKey(hckey);
if (hclskey)
RegCloseKey(hclskey);
if (hrkey)
RegCloseKey(hrkey);
hres = HRESULT_FROM_WIN32(ret);
TRACE(" hresult=0x%08x\n", hres);
return hres;
}
static HRESULT unregister_dmo_from_category(const WCHAR *dmoW, const WCHAR *catW, HKEY categories)
{
HKEY catkey;
LONG ret;
ret = RegOpenKeyExW(categories, catW, 0, KEY_WRITE, &catkey);
if (!ret)
{
ret = RegDeleteKeyW(catkey, dmoW);
RegCloseKey(catkey);
}
return !ret ? S_OK : S_FALSE;
}
/***************************************************************
* DMOUnregister (MSDMO.@)
*
* Unregister a DirectX Media Object.
*/
HRESULT WINAPI DMOUnregister(REFCLSID dmo, REFGUID category)
{
HKEY rootkey = 0, categorieskey = 0;
WCHAR dmoW[64], catW[64];
HRESULT hr = S_FALSE;
LONG ret;
TRACE("%s %s\n", debugstr_guid(dmo), debugstr_guid(category));
ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, KEY_WRITE, &rootkey);
if (ret)
return S_FALSE;
GUIDToString(dmoW, dmo);
RegDeleteKeyW(rootkey, dmoW);
/* open 'Categories' */
ret = RegOpenKeyExW(rootkey, szDMOCategories, 0, KEY_WRITE|KEY_ENUMERATE_SUB_KEYS, &categorieskey);
RegCloseKey(rootkey);
if (ret)
{
hr = HRESULT_FROM_WIN32(ret);
goto lend;
}
/* remove from all categories */
if (IsEqualGUID(category, &GUID_NULL))
{
DWORD index = 0, len = ARRAY_SIZE(catW);
while (!RegEnumKeyExW(categorieskey, index++, catW, &len, NULL, NULL, NULL, NULL))
hr = unregister_dmo_from_category(dmoW, catW, categorieskey);
}
else
{
GUIDToString(catW, category);
hr = unregister_dmo_from_category(dmoW, catW, categorieskey);
}
lend:
if (categorieskey)
RegCloseKey(categorieskey);
return hr;
}
/***************************************************************
* DMOGetName (MSDMO.@)
*
* Get DMO Name from the registry
*/
HRESULT WINAPI DMOGetName(REFCLSID clsidDMO, WCHAR name[])
{
static const INT max_name_len = 80*sizeof(WCHAR);
DWORD count = max_name_len;
WCHAR szguid[64];
HKEY hrkey, hkey;
LONG ret;
TRACE("%s %p\n", debugstr_guid(clsidDMO), name);
if (RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, KEY_READ, &hrkey))
return E_FAIL;
ret = RegOpenKeyExW(hrkey, GUIDToString(szguid, clsidDMO), 0, KEY_READ, &hkey);
RegCloseKey(hrkey);
if (ret)
return E_FAIL;
ret = RegQueryValueExW(hkey, NULL, NULL, NULL, (LPBYTE)name, &count);
RegCloseKey(hkey);
if (!ret && count > 1)
{
TRACE("name=%s\n", debugstr_w(name));
return S_OK;
}
name[0] = 0;
return S_FALSE;
}
static HRESULT dup_partial_mediatype(const DMO_PARTIAL_MEDIATYPE *types, DWORD count, DMO_PARTIAL_MEDIATYPE **ret)
{
*ret = NULL;
if (count == 0)
return S_OK;
*ret = HeapAlloc(GetProcessHeap(), 0, count*sizeof(*types));
if (!*ret)
return E_OUTOFMEMORY;
memcpy(*ret, types, count*sizeof(*types));
return S_OK;
}
/**************************************************************************
* IEnumDMO_Constructor
*/
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static HRESULT IEnumDMO_Constructor(
REFGUID guidCategory,
DWORD dwFlags,
DWORD cInTypes,
const DMO_PARTIAL_MEDIATYPE *pInTypes,
DWORD cOutTypes,
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const DMO_PARTIAL_MEDIATYPE *pOutTypes,
IEnumDMO **obj)
{
IEnumDMOImpl* lpedmo;
HRESULT hr;
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*obj = NULL;
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lpedmo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumDMOImpl));
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if (!lpedmo)
return E_OUTOFMEMORY;
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lpedmo->IEnumDMO_iface.lpVtbl = &edmovt;
lpedmo->ref = 1;
lpedmo->index = -1;
lpedmo->category = *guidCategory;
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lpedmo->dwFlags = dwFlags;
lpedmo->cInTypes = cInTypes;
lpedmo->cOutTypes = cOutTypes;
lpedmo->hkey = NULL;
hr = dup_partial_mediatype(pInTypes, cInTypes, &lpedmo->pInTypes);
if (FAILED(hr))
goto lerr;
hr = dup_partial_mediatype(pOutTypes, cOutTypes, &lpedmo->pOutTypes);
if (FAILED(hr))
goto lerr;
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/* If not filtering by category enum from media objects root */
if (IsEqualGUID(guidCategory, &GUID_NULL))
{
RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, KEY_READ, &lpedmo->hkey);
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}
else
{
WCHAR szguid[64];
WCHAR szKey[MAX_PATH];
wsprintfW(szKey, szCat3Fmt, szDMORootKey, szDMOCategories, GUIDToString(szguid, guidCategory));
RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 0, KEY_READ, &lpedmo->hkey);
}
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lerr:
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if (FAILED(hr))
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IEnumDMO_Release(&lpedmo->IEnumDMO_iface);
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else
{
TRACE("returning %p\n", lpedmo);
*obj = &lpedmo->IEnumDMO_iface;
}
return hr;
}
/******************************************************************************
* IEnumDMO_fnAddRef
*/
static ULONG WINAPI IEnumDMO_fnAddRef(IEnumDMO * iface)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p)->(%d)\n", This, refCount);
return refCount;
}
/**************************************************************************
* EnumDMO_QueryInterface
*/
static HRESULT WINAPI IEnumDMO_fnQueryInterface(IEnumDMO* iface, REFIID riid, void **ppvObj)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObj);
*ppvObj = NULL;
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if (IsEqualIID(riid, &IID_IEnumDMO) ||
IsEqualIID(riid, &IID_IUnknown))
{
*ppvObj = iface;
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IEnumDMO_AddRef(iface);
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}
return *ppvObj ? S_OK : E_NOINTERFACE;
}
/******************************************************************************
* IEnumDMO_fnRelease
*/
static ULONG WINAPI IEnumDMO_fnRelease(IEnumDMO * iface)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%d)\n", This, refCount);
if (!refCount)
{
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if (This->hkey)
RegCloseKey(This->hkey);
HeapFree(GetProcessHeap(), 0, This->pInTypes);
HeapFree(GetProcessHeap(), 0, This->pOutTypes);
HeapFree(GetProcessHeap(), 0, This);
}
return refCount;
}
/******************************************************************************
* IEnumDMO_fnNext
*/
static HRESULT WINAPI IEnumDMO_fnNext(
IEnumDMO * iface,
DWORD cItemsToFetch,
CLSID * pCLSID,
WCHAR ** Names,
DWORD * pcItemsFetched)
{
HKEY hkey;
WCHAR szNextKey[MAX_PATH];
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WCHAR szGuidKey[64];
WCHAR szKey[MAX_PATH];
WCHAR szValue[MAX_PATH];
DWORD len;
UINT count = 0;
HRESULT hres = S_OK;
LONG ret;
GUID guid;
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
TRACE("(%p)->(%d %p %p %p)\n", This, cItemsToFetch, pCLSID, Names, pcItemsFetched);
if (!pCLSID)
return E_POINTER;
if (!pcItemsFetched && cItemsToFetch > 1)
return E_INVALIDARG;
while (count < cItemsToFetch)
{
This->index++;
len = MAX_PATH;
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ret = RegEnumKeyExW(This->hkey, This->index, szNextKey, &len, NULL, NULL, NULL, NULL);
if (ret != ERROR_SUCCESS)
{
hres = HRESULT_FROM_WIN32(ret);
break;
}
if (string_to_guid(szNextKey, &guid) != S_OK)
continue;
TRACE("found %s\n", debugstr_w(szNextKey));
if (!(This->dwFlags & DMO_ENUMF_INCLUDE_KEYED))
{
wsprintfW(szKey, szCat3Fmt, szDMORootKey, szNextKey, szDMOKeyed);
ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 0, KEY_READ, &hkey);
if (ERROR_SUCCESS == ret)
{
RegCloseKey(hkey);
/* Skip Keyed entries */
continue;
}
}
wsprintfW(szKey, szCat2Fmt, szDMORootKey, szNextKey);
ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 0, KEY_READ, &hkey);
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TRACE("testing %s\n", debugstr_w(szKey));
if (This->pInTypes)
{
UINT i, j;
DWORD cInTypes;
DMO_PARTIAL_MEDIATYPE* pInTypes;
hres = read_types(hkey, szDMOInputType, &cInTypes,
sizeof(szValue)/sizeof(DMO_PARTIAL_MEDIATYPE),
(DMO_PARTIAL_MEDIATYPE*)szValue);
if (FAILED(hres))
{
RegCloseKey(hkey);
continue;
}
pInTypes = (DMO_PARTIAL_MEDIATYPE *)szValue;
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TRACE("read %d intypes for %s:\n", cInTypes, debugstr_w(szKey));
for (i = 0; i < cInTypes; i++) {
TRACE("intype %d: type %s, subtype %s\n", i, debugstr_guid(&pInTypes[i].type),
debugstr_guid(&pInTypes[i].subtype));
}
for (i = 0; i < This->cInTypes; i++)
{
for (j = 0; j < cInTypes; j++)
{
if (IsMediaTypeEqual(&pInTypes[j], &This->pInTypes[i]))
break;
}
if (j >= cInTypes)
break;
}
if (i < This->cInTypes)
{
RegCloseKey(hkey);
continue;
}
}
if (This->pOutTypes)
{
UINT i, j;
DWORD cOutTypes;
DMO_PARTIAL_MEDIATYPE* pOutTypes;
hres = read_types(hkey, szDMOOutputType, &cOutTypes,
sizeof(szValue)/sizeof(DMO_PARTIAL_MEDIATYPE),
(DMO_PARTIAL_MEDIATYPE*)szValue);
if (FAILED(hres))
{
RegCloseKey(hkey);
continue;
}
pOutTypes = (DMO_PARTIAL_MEDIATYPE *)szValue;
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TRACE("read %d outtypes for %s:\n", cOutTypes, debugstr_w(szKey));
for (i = 0; i < cOutTypes; i++) {
TRACE("outtype %d: type %s, subtype %s\n", i, debugstr_guid(&pOutTypes[i].type),
debugstr_guid(&pOutTypes[i].subtype));
}
for (i = 0; i < This->cOutTypes; i++)
{
for (j = 0; j < cOutTypes; j++)
{
if (IsMediaTypeEqual(&pOutTypes[j], &This->pOutTypes[i]))
break;
}
if (j >= cOutTypes)
break;
}
if (i < This->cOutTypes)
{
RegCloseKey(hkey);
continue;
}
}
/* Media object wasn't filtered so add it to return list */
len = MAX_PATH * sizeof(WCHAR);
ret = RegQueryValueExW(hkey, NULL, NULL, NULL, (LPBYTE)szValue, &len);
if (Names)
{
Names[count] = NULL;
if (ret == ERROR_SUCCESS)
{
Names[count] = CoTaskMemAlloc((strlenW(szValue) + 1) * sizeof(WCHAR));
if (Names[count])
strcpyW(Names[count], szValue);
}
}
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wsprintfW(szGuidKey,szToGuidFmt,szNextKey);
CLSIDFromString(szGuidKey, &pCLSID[count]);
TRACE("found match %s %s\n", debugstr_w(szValue), debugstr_w(szNextKey));
RegCloseKey(hkey);
count++;
}
if (pcItemsFetched) *pcItemsFetched = count;
if (count < cItemsToFetch)
hres = S_FALSE;
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TRACE("<-- %i found\n",count);
return hres;
}
/******************************************************************************
* IEnumDMO_fnSkip
*/
static HRESULT WINAPI IEnumDMO_fnSkip(IEnumDMO * iface, DWORD cItemsToSkip)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
TRACE("(%p)->(%d)\n", This, cItemsToSkip);
This->index += cItemsToSkip;
return S_OK;
}
/******************************************************************************
* IEnumDMO_fnReset
*/
static HRESULT WINAPI IEnumDMO_fnReset(IEnumDMO * iface)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
TRACE("(%p)\n", This);
This->index = -1;
return S_OK;
}
/******************************************************************************
* IEnumDMO_fnClone
*/
static HRESULT WINAPI IEnumDMO_fnClone(IEnumDMO *iface, IEnumDMO **ppEnum)
{
IEnumDMOImpl *This = impl_from_IEnumDMO(iface);
TRACE("(%p)->(%p)\n", This, ppEnum);
return IEnumDMO_Constructor(&This->category, This->dwFlags, This->cInTypes, This->pInTypes,
This->cOutTypes, This->pOutTypes, ppEnum);
}
/***************************************************************
* DMOEnum (MSDMO.@)
*
* Enumerate DirectX Media Objects in the registry.
*/
HRESULT WINAPI DMOEnum(
REFGUID category,
DWORD flags,
DWORD cInTypes,
const DMO_PARTIAL_MEDIATYPE *pInTypes,
DWORD cOutTypes,
const DMO_PARTIAL_MEDIATYPE *pOutTypes,
IEnumDMO **ppEnum)
{
TRACE("%s 0x%08x %d %p %d %p %p\n", debugstr_guid(category), flags, cInTypes, pInTypes,
cOutTypes, pOutTypes, ppEnum);
if (TRACE_ON(msdmo))
{
DWORD i;
if (cInTypes)
{
for (i = 0; i < cInTypes; i++)
TRACE("intype %d - type %s, subtype %s\n", i, debugstr_guid(&pInTypes[i].type),
debugstr_guid(&pInTypes[i].subtype));
}
if (cOutTypes) {
for (i = 0; i < cOutTypes; i++)
TRACE("outtype %d - type %s, subtype %s\n", i, debugstr_guid(&pOutTypes[i].type),
debugstr_guid(&pOutTypes[i].subtype));
}
}
return IEnumDMO_Constructor(category, flags, cInTypes,
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pInTypes, cOutTypes, pOutTypes, ppEnum);
}
static const IEnumDMOVtbl edmovt =
{
IEnumDMO_fnQueryInterface,
IEnumDMO_fnAddRef,
IEnumDMO_fnRelease,
IEnumDMO_fnNext,
IEnumDMO_fnSkip,
IEnumDMO_fnReset,
IEnumDMO_fnClone,
};
HRESULT read_types(HKEY root, LPCWSTR key, ULONG *supplied, ULONG requested, DMO_PARTIAL_MEDIATYPE* types )
{
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HRESULT ret = S_OK;
if (MSDMO_MAJOR_VERSION > 5)
{
DWORD len;
LONG rc;
len = requested * sizeof(DMO_PARTIAL_MEDIATYPE);
rc = RegQueryValueExW(root, key, NULL, NULL, (LPBYTE) types, &len);
ret = HRESULT_FROM_WIN32(rc);
*supplied = len / sizeof(DMO_PARTIAL_MEDIATYPE);
}
else
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{
HKEY hkey;
WCHAR szGuidKey[64];
*supplied = 0;
if (ERROR_SUCCESS == RegOpenKeyExW(root, key, 0, KEY_READ, &hkey))
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{
int index = 0;
WCHAR szNextKey[MAX_PATH];
DWORD len;
LONG rc = ERROR_SUCCESS;
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while (rc == ERROR_SUCCESS)
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{
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len = MAX_PATH;
rc = RegEnumKeyExW(hkey, index, szNextKey, &len, NULL, NULL, NULL, NULL);
if (rc == ERROR_SUCCESS)
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{
HKEY subk;
int sub_index = 0;
LONG rcs = ERROR_SUCCESS;
WCHAR szSubKey[MAX_PATH];
RegOpenKeyExW(hkey, szNextKey, 0, KEY_READ, &subk);
while (rcs == ERROR_SUCCESS)
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{
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len = MAX_PATH;
rcs = RegEnumKeyExW(subk, sub_index, szSubKey, &len, NULL, NULL, NULL, NULL);
if (rcs == ERROR_SUCCESS)
{
if (*supplied >= requested)
{
/* Bailing */
ret = S_FALSE;
rc = ERROR_MORE_DATA;
rcs = ERROR_MORE_DATA;
break;
}
wsprintfW(szGuidKey,szToGuidFmt,szNextKey);
CLSIDFromString(szGuidKey, &types[*supplied].type);
wsprintfW(szGuidKey,szToGuidFmt,szSubKey);
CLSIDFromString(szGuidKey, &types[*supplied].subtype);
TRACE("Adding type %s subtype %s at index %i\n",
debugstr_guid(&types[*supplied].type),
debugstr_guid(&types[*supplied].subtype),
*supplied);
(*supplied)++;
}
sub_index++;
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}
index++;
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}
}
RegCloseKey(hkey);
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}
}
return ret;
}
/***************************************************************
* DMOGetTypes (MSDMO.@)
*/
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HRESULT WINAPI DMOGetTypes(REFCLSID clsidDMO,
ULONG ulInputTypesRequested,
ULONG* pulInputTypesSupplied,
DMO_PARTIAL_MEDIATYPE* pInputTypes,
ULONG ulOutputTypesRequested,
ULONG* pulOutputTypesSupplied,
DMO_PARTIAL_MEDIATYPE* pOutputTypes)
{
HKEY root,hkey;
HRESULT ret = S_OK;
WCHAR szguid[64];
TRACE ("(%s,%u,%p,%p,%u,%p,%p)\n", debugstr_guid(clsidDMO), ulInputTypesRequested,
pulInputTypesSupplied, pInputTypes, ulOutputTypesRequested, pulOutputTypesSupplied,
pOutputTypes);
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if (ERROR_SUCCESS != RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0,
KEY_READ, &root))
return E_FAIL;
if (ERROR_SUCCESS != RegOpenKeyExW(root,GUIDToString(szguid,clsidDMO) , 0,
KEY_READ, &hkey))
{
RegCloseKey(root);
return E_FAIL;
}
if (ulInputTypesRequested > 0)
{
ret = read_types(hkey, szDMOInputType, pulInputTypesSupplied, ulInputTypesRequested, pInputTypes );
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}
else
*pulInputTypesSupplied = 0;
if (ulOutputTypesRequested > 0)
{
HRESULT ret2;
ret2 = read_types(hkey, szDMOOutputType, pulOutputTypesSupplied, ulOutputTypesRequested, pOutputTypes );
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if (ret == S_OK)
ret = ret2;
}
else
*pulOutputTypesSupplied = 0;
return ret;
}