Sweden-Number/dlls/windowscodecs/info.c

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/*
* Copyright 2009 Vincent Povirk for CodeWeavers
*
* 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 <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "objbase.h"
#include "wincodec.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "wine/list.h"
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
typedef struct {
const IWICBitmapDecoderInfoVtbl *lpIWICBitmapDecoderInfoVtbl;
LONG ref;
HKEY classkey;
CLSID clsid;
} BitmapDecoderInfo;
static HRESULT WINAPI BitmapDecoderInfo_QueryInterface(IWICBitmapDecoderInfo *iface, REFIID iid,
void **ppv)
{
BitmapDecoderInfo *This = (BitmapDecoderInfo*)iface;
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICComponentInfo, iid) ||
IsEqualIID(&IID_IWICBitmapCodecInfo, iid) ||
IsEqualIID(&IID_IWICBitmapDecoderInfo ,iid))
{
*ppv = This;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI BitmapDecoderInfo_AddRef(IWICBitmapDecoderInfo *iface)
{
BitmapDecoderInfo *This = (BitmapDecoderInfo*)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI BitmapDecoderInfo_Release(IWICBitmapDecoderInfo *iface)
{
BitmapDecoderInfo *This = (BitmapDecoderInfo*)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
RegCloseKey(This->classkey);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI BitmapDecoderInfo_GetComponentType(IWICBitmapDecoderInfo *iface,
WICComponentType *pType)
{
TRACE("(%p,%p)\n", iface, pType);
*pType = WICDecoder;
return S_OK;
}
static HRESULT WINAPI BitmapDecoderInfo_GetCLSID(IWICBitmapDecoderInfo *iface, CLSID *pclsid)
{
FIXME("(%p,%p): stub\n", iface, pclsid);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetSigningStatus(IWICBitmapDecoderInfo *iface, DWORD *pStatus)
{
FIXME("(%p,%p): stub\n", iface, pStatus);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetAuthor(IWICBitmapDecoderInfo *iface, UINT cchAuthor,
WCHAR *wzAuthor, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchAuthor, wzAuthor, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetVendorGUID(IWICBitmapDecoderInfo *iface, GUID *pguidVendor)
{
FIXME("(%p,%p): stub\n", iface, pguidVendor);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetVersion(IWICBitmapDecoderInfo *iface, UINT cchVersion,
WCHAR *wzVersion, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchVersion, wzVersion, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetSpecVersion(IWICBitmapDecoderInfo *iface, UINT cchSpecVersion,
WCHAR *wzSpecVersion, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetFriendlyName(IWICBitmapDecoderInfo *iface, UINT cchFriendlyName,
WCHAR *wzFriendlyName, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchFriendlyName, wzFriendlyName, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetContainerFormat(IWICBitmapDecoderInfo *iface,
GUID *pguidContainerFormat)
{
FIXME("(%p,%p): stub\n", iface, pguidContainerFormat);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetPixelFormats(IWICBitmapDecoderInfo *iface,
UINT cFormats, GUID *pguidPixelFormats, UINT *pcActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cFormats, pguidPixelFormats, pcActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetColorManagementVersion(IWICBitmapDecoderInfo *iface,
UINT cchColorManagementVersion, WCHAR *wzColorManagementVersion, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchColorManagementVersion, wzColorManagementVersion, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetDeviceManufacturer(IWICBitmapDecoderInfo *iface,
UINT cchDeviceManufacturer, WCHAR *wzDeviceManufacturer, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceManufacturer, wzDeviceManufacturer, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetDeviceModels(IWICBitmapDecoderInfo *iface,
UINT cchDeviceModels, WCHAR *wzDeviceModels, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceModels, wzDeviceModels, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetMimeTypes(IWICBitmapDecoderInfo *iface,
UINT cchMimeTypes, WCHAR *wzMimeTypes, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchMimeTypes, wzMimeTypes, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetFileExtensions(IWICBitmapDecoderInfo *iface,
UINT cchFileExtensions, WCHAR *wzFileExtensions, UINT *pcchActual)
{
FIXME("(%p,%u,%p,%p): stub\n", iface, cchFileExtensions, wzFileExtensions, pcchActual);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_DoesSupportAnimation(IWICBitmapDecoderInfo *iface,
BOOL *pfSupportAnimation)
{
FIXME("(%p,%p): stub\n", iface, pfSupportAnimation);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_DoesSupportChromaKey(IWICBitmapDecoderInfo *iface,
BOOL *pfSupportChromaKey)
{
FIXME("(%p,%p): stub\n", iface, pfSupportChromaKey);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_DoesSupportLossless(IWICBitmapDecoderInfo *iface,
BOOL *pfSupportLossless)
{
FIXME("(%p,%p): stub\n", iface, pfSupportLossless);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_DoesSupportMultiframe(IWICBitmapDecoderInfo *iface,
BOOL *pfSupportMultiframe)
{
FIXME("(%p,%p): stub\n", iface, pfSupportMultiframe);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_MatchesMimeType(IWICBitmapDecoderInfo *iface,
LPCWSTR wzMimeType, BOOL *pfMatches)
{
FIXME("(%p,%s,%p): stub\n", iface, debugstr_w(wzMimeType), pfMatches);
return E_NOTIMPL;
}
static HRESULT WINAPI BitmapDecoderInfo_GetPatterns(IWICBitmapDecoderInfo *iface,
UINT cbSizePatterns, WICBitmapPattern *pPatterns, UINT *pcPatterns, UINT *pcbPatternsActual)
{
BitmapDecoderInfo *This = (BitmapDecoderInfo*)iface;
UINT pattern_count=0, patterns_size=0;
WCHAR subkeyname[11];
LONG res;
HKEY patternskey, patternkey;
static const WCHAR uintformatW[] = {'%','u',0};
static const WCHAR patternsW[] = {'P','a','t','t','e','r','n','s',0};
static const WCHAR positionW[] = {'P','o','s','i','t','i','o','n',0};
static const WCHAR lengthW[] = {'L','e','n','g','t','h',0};
static const WCHAR patternW[] = {'P','a','t','t','e','r','n',0};
static const WCHAR maskW[] = {'M','a','s','k',0};
static const WCHAR endofstreamW[] = {'E','n','d','O','f','S','t','r','e','a','m',0};
HRESULT hr=S_OK;
UINT i;
BYTE *bPatterns=(BYTE*)pPatterns;
DWORD length, valuesize;
TRACE("(%p,%i,%p,%p,%p)\n", iface, cbSizePatterns, pPatterns, pcPatterns, pcbPatternsActual);
res = RegOpenKeyExW(This->classkey, patternsW, 0, KEY_READ, &patternskey);
if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
res = RegQueryInfoKeyW(patternskey, NULL, NULL, NULL, &pattern_count, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
if (res == ERROR_SUCCESS)
{
patterns_size = pattern_count * sizeof(WICBitmapPattern);
for (i=0; i<pattern_count; i++)
{
snprintfW(subkeyname, 11, uintformatW, i);
res = RegOpenKeyExW(patternskey, subkeyname, 0, KEY_READ, &patternkey);
if (res == ERROR_SUCCESS)
{
valuesize = sizeof(ULONG);
res = RegGetValueW(patternkey, NULL, lengthW, RRF_RT_DWORD, NULL,
&length, &valuesize);
patterns_size += length*2;
if ((cbSizePatterns >= patterns_size) && (res == ERROR_SUCCESS))
{
pPatterns[i].Length = length;
pPatterns[i].EndOfStream = 0;
valuesize = sizeof(BOOL);
RegGetValueW(patternkey, NULL, endofstreamW, RRF_RT_DWORD, NULL,
&pPatterns[i].EndOfStream, &valuesize);
pPatterns[i].Position.QuadPart = 0;
valuesize = sizeof(ULARGE_INTEGER);
res = RegGetValueW(patternkey, NULL, positionW, RRF_RT_DWORD|RRF_RT_QWORD, NULL,
&pPatterns[i].Position, &valuesize);
if (res == ERROR_SUCCESS)
{
pPatterns[i].Pattern = bPatterns+patterns_size-length*2;
valuesize = length;
res = RegGetValueW(patternkey, NULL, patternW, RRF_RT_REG_BINARY, NULL,
pPatterns[i].Pattern, &valuesize);
}
if (res == ERROR_SUCCESS)
{
pPatterns[i].Mask = bPatterns+patterns_size-length;
valuesize = length;
res = RegGetValueW(patternkey, NULL, maskW, RRF_RT_REG_BINARY, NULL,
pPatterns[i].Mask, &valuesize);
}
}
RegCloseKey(patternkey);
}
if (res != ERROR_SUCCESS)
{
hr = HRESULT_FROM_WIN32(res);
break;
}
}
}
else hr = HRESULT_FROM_WIN32(res);
RegCloseKey(patternskey);
if (hr == S_OK)
{
*pcPatterns = pattern_count;
*pcbPatternsActual = patterns_size;
if (pPatterns && cbSizePatterns < patterns_size)
hr = WINCODEC_ERR_INSUFFICIENTBUFFER;
}
return hr;
}
static HRESULT WINAPI BitmapDecoderInfo_MatchesPattern(IWICBitmapDecoderInfo *iface,
IStream *pIStream, BOOL *pfMatches)
{
WICBitmapPattern *patterns;
UINT pattern_count=0, patterns_size=0;
HRESULT hr;
int i, pos;
BYTE *data=NULL;
ULONG datasize=0;
ULONG bytesread;
LARGE_INTEGER seekpos;
TRACE("(%p,%p,%p)\n", iface, pIStream, pfMatches);
hr = BitmapDecoderInfo_GetPatterns(iface, 0, NULL, &pattern_count, &patterns_size);
if (FAILED(hr)) return hr;
patterns = HeapAlloc(GetProcessHeap(), 0, patterns_size);
if (!patterns) return E_OUTOFMEMORY;
hr = BitmapDecoderInfo_GetPatterns(iface, patterns_size, patterns, &pattern_count, &patterns_size);
if (FAILED(hr)) goto end;
for (i=0; i<pattern_count; i++)
{
if (datasize < patterns[i].Length)
{
HeapFree(GetProcessHeap(), 0, data);
datasize = patterns[i].Length;
data = HeapAlloc(GetProcessHeap(), 0, patterns[i].Length);
if (!data)
{
hr = E_OUTOFMEMORY;
break;
}
}
if (patterns[i].EndOfStream)
seekpos.QuadPart = -patterns[i].Position.QuadPart;
else
seekpos.QuadPart = patterns[i].Position.QuadPart;
hr = IStream_Seek(pIStream, seekpos, patterns[i].EndOfStream ? STREAM_SEEK_END : STREAM_SEEK_SET, NULL);
if (hr == STG_E_INVALIDFUNCTION) continue; /* before start of stream */
if (FAILED(hr)) break;
hr = IStream_Read(pIStream, data, patterns[i].Length, &bytesread);
if (hr == S_FALSE || (hr == S_OK && bytesread != patterns[i].Length)) /* past end of stream */
continue;
if (FAILED(hr)) break;
for (pos=0; pos<patterns[i].Length; pos++)
{
if ((data[pos] & patterns[i].Mask[pos]) != patterns[i].Pattern[pos])
break;
}
if (pos == patterns[i].Length) /* matches pattern */
{
hr = S_OK;
*pfMatches = TRUE;
break;
}
}
if (i == pattern_count) /* does not match any pattern */
{
hr = S_OK;
*pfMatches = FALSE;
}
end:
HeapFree(GetProcessHeap(), 0, patterns);
HeapFree(GetProcessHeap(), 0, data);
return hr;
}
static HRESULT WINAPI BitmapDecoderInfo_CreateInstance(IWICBitmapDecoderInfo *iface,
IWICBitmapDecoder **ppIBitmapDecoder)
{
BitmapDecoderInfo *This = (BitmapDecoderInfo*)iface;
TRACE("(%p,%p)\n", iface, ppIBitmapDecoder);
return CoCreateInstance(&This->clsid, NULL, CLSCTX_INPROC_SERVER,
&IID_IWICBitmapDecoder, (void**)ppIBitmapDecoder);
}
static const IWICBitmapDecoderInfoVtbl BitmapDecoderInfo_Vtbl = {
BitmapDecoderInfo_QueryInterface,
BitmapDecoderInfo_AddRef,
BitmapDecoderInfo_Release,
BitmapDecoderInfo_GetComponentType,
BitmapDecoderInfo_GetCLSID,
BitmapDecoderInfo_GetSigningStatus,
BitmapDecoderInfo_GetAuthor,
BitmapDecoderInfo_GetVendorGUID,
BitmapDecoderInfo_GetVersion,
BitmapDecoderInfo_GetSpecVersion,
BitmapDecoderInfo_GetFriendlyName,
BitmapDecoderInfo_GetContainerFormat,
BitmapDecoderInfo_GetPixelFormats,
BitmapDecoderInfo_GetColorManagementVersion,
BitmapDecoderInfo_GetDeviceManufacturer,
BitmapDecoderInfo_GetDeviceModels,
BitmapDecoderInfo_GetMimeTypes,
BitmapDecoderInfo_GetFileExtensions,
BitmapDecoderInfo_DoesSupportAnimation,
BitmapDecoderInfo_DoesSupportChromaKey,
BitmapDecoderInfo_DoesSupportLossless,
BitmapDecoderInfo_DoesSupportMultiframe,
BitmapDecoderInfo_MatchesMimeType,
BitmapDecoderInfo_GetPatterns,
BitmapDecoderInfo_MatchesPattern,
BitmapDecoderInfo_CreateInstance
};
static HRESULT BitmapDecoderInfo_Constructor(HKEY classkey, REFCLSID clsid, IWICComponentInfo **ppIInfo)
{
BitmapDecoderInfo *This;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapDecoderInfo));
if (!This)
{
RegCloseKey(classkey);
return E_OUTOFMEMORY;
}
This->lpIWICBitmapDecoderInfoVtbl = &BitmapDecoderInfo_Vtbl;
This->ref = 1;
This->classkey = classkey;
memcpy(&This->clsid, clsid, sizeof(CLSID));
*ppIInfo = (IWICComponentInfo*)This;
return S_OK;
}
static WCHAR const clsid_keyname[] = {'C','L','S','I','D',0};
static WCHAR const instance_keyname[] = {'I','n','s','t','a','n','c','e',0};
struct category {
WICComponentType type;
const GUID *catid;
HRESULT (*constructor)(HKEY,REFCLSID,IWICComponentInfo**);
};
static const struct category categories[] = {
{WICDecoder, &CATID_WICBitmapDecoders, BitmapDecoderInfo_Constructor},
{0}
};
HRESULT CreateComponentInfo(REFCLSID clsid, IWICComponentInfo **ppIInfo)
{
HKEY clsidkey;
HKEY classkey;
HKEY catidkey;
HKEY instancekey;
WCHAR guidstring[39];
LONG res;
const struct category *category;
int found=0;
HRESULT hr;
res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, KEY_READ, &clsidkey);
if (res != ERROR_SUCCESS)
return HRESULT_FROM_WIN32(res);
for (category=categories; category->type; category++)
{
StringFromGUID2(category->catid, guidstring, 39);
res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &catidkey);
if (res == ERROR_SUCCESS)
{
res = RegOpenKeyExW(catidkey, instance_keyname, 0, KEY_READ, &instancekey);
if (res == ERROR_SUCCESS)
{
StringFromGUID2(clsid, guidstring, 39);
res = RegOpenKeyExW(instancekey, guidstring, 0, KEY_READ, &classkey);
if (res == ERROR_SUCCESS)
{
RegCloseKey(classkey);
found = 1;
}
RegCloseKey(instancekey);
}
RegCloseKey(catidkey);
}
if (found) break;
}
if (found)
{
res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &classkey);
if (res == ERROR_SUCCESS)
hr = category->constructor(classkey, clsid, ppIInfo);
else
hr = HRESULT_FROM_WIN32(res);
}
else
hr = E_FAIL;
RegCloseKey(clsidkey);
return hr;
}
typedef struct {
const IEnumUnknownVtbl *IEnumUnknown_Vtbl;
LONG ref;
struct list objects;
struct list *cursor;
} ComponentEnum;
typedef struct {
struct list entry;
IUnknown *unk;
} ComponentEnumItem;
static const IEnumUnknownVtbl ComponentEnumVtbl;
static HRESULT WINAPI ComponentEnum_QueryInterface(IEnumUnknown *iface, REFIID iid,
void **ppv)
{
ComponentEnum *This = (ComponentEnum*)iface;
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IEnumUnknown, iid))
{
*ppv = This;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI ComponentEnum_AddRef(IEnumUnknown *iface)
{
ComponentEnum *This = (ComponentEnum*)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI ComponentEnum_Release(IEnumUnknown *iface)
{
ComponentEnum *This = (ComponentEnum*)iface;
ULONG ref = InterlockedDecrement(&This->ref);
ComponentEnumItem *cursor, *cursor2;
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &This->objects, ComponentEnumItem, entry)
{
IUnknown_Release(cursor->unk);
list_remove(&cursor->entry);
HeapFree(GetProcessHeap(), 0, cursor);
}
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI ComponentEnum_Next(IEnumUnknown *iface, ULONG celt,
IUnknown **rgelt, ULONG *pceltFetched)
{
ComponentEnum *This = (ComponentEnum*)iface;
int num_fetched=0;
ComponentEnumItem *item;
TRACE("(%p,%u,%p,%p)\n", iface, celt, rgelt, pceltFetched);
while (num_fetched<celt)
{
if (!This->cursor)
{
*pceltFetched = num_fetched;
return S_FALSE;
}
item = LIST_ENTRY(This->cursor, ComponentEnumItem, entry);
IUnknown_AddRef(item->unk);
rgelt[num_fetched] = item->unk;
num_fetched++;
This->cursor = list_next(&This->objects, This->cursor);
}
*pceltFetched = num_fetched;
return S_OK;
}
static HRESULT WINAPI ComponentEnum_Skip(IEnumUnknown *iface, ULONG celt)
{
ComponentEnum *This = (ComponentEnum*)iface;
int i;
TRACE("(%p,%u)\n", iface, celt);
for (i=0; i<celt; i++)
{
if (!This->cursor)
return S_FALSE;
This->cursor = list_next(&This->objects, This->cursor);
}
return S_OK;
}
static HRESULT WINAPI ComponentEnum_Reset(IEnumUnknown *iface)
{
ComponentEnum *This = (ComponentEnum*)iface;
TRACE("(%p)\n", iface);
This->cursor = list_head(&This->objects);
return S_OK;
}
static HRESULT WINAPI ComponentEnum_Clone(IEnumUnknown *iface, IEnumUnknown **ppenum)
{
ComponentEnum *This = (ComponentEnum*)iface;
ComponentEnum *new_enum;
ComponentEnumItem *old_item, *new_item;
HRESULT ret=S_OK;
new_enum = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnum));
if (!new_enum)
{
*ppenum = NULL;
return E_OUTOFMEMORY;
}
new_enum->IEnumUnknown_Vtbl = &ComponentEnumVtbl;
new_enum->ref = 1;
new_enum->cursor = NULL;
list_init(&new_enum->objects);
LIST_FOR_EACH_ENTRY(old_item, &This->objects, ComponentEnumItem, entry)
{
new_item = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnumItem));
if (!new_item)
{
ret = E_OUTOFMEMORY;
break;
}
new_item->unk = old_item->unk;
list_add_tail(&new_enum->objects, &new_item->entry);
IUnknown_AddRef(new_item->unk);
if (&old_item->entry == This->cursor) new_enum->cursor = &new_item->entry;
}
if (FAILED(ret))
{
IUnknown_Release((IUnknown*)new_enum);
*ppenum = NULL;
}
else
*ppenum = (IEnumUnknown*)new_enum;
return ret;
}
static const IEnumUnknownVtbl ComponentEnumVtbl = {
ComponentEnum_QueryInterface,
ComponentEnum_AddRef,
ComponentEnum_Release,
ComponentEnum_Next,
ComponentEnum_Skip,
ComponentEnum_Reset,
ComponentEnum_Clone
};
HRESULT CreateComponentEnumerator(DWORD componentTypes, DWORD options, IEnumUnknown **ppIEnumUnknown)
{
ComponentEnum *This;
ComponentEnumItem *item;
const struct category *category;
HKEY clsidkey, catidkey, instancekey;
WCHAR guidstring[39];
LONG res;
int i;
HRESULT hr=S_OK;
CLSID clsid;
if (options) FIXME("ignoring flags %x\n", options);
res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, KEY_READ, &clsidkey);
if (res != ERROR_SUCCESS)
return HRESULT_FROM_WIN32(res);
This = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnum));
if (!This)
{
RegCloseKey(clsidkey);
return E_OUTOFMEMORY;
}
This->IEnumUnknown_Vtbl = &ComponentEnumVtbl;
This->ref = 1;
list_init(&This->objects);
for (category=categories; category->type && hr == S_OK; category++)
{
if ((category->type & componentTypes) == 0) continue;
StringFromGUID2(category->catid, guidstring, 39);
res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &catidkey);
if (res == ERROR_SUCCESS)
{
res = RegOpenKeyExW(catidkey, instance_keyname, 0, KEY_READ, &instancekey);
if (res == ERROR_SUCCESS)
{
i=0;
for (;;i++)
{
DWORD guidstring_size = 39;
res = RegEnumKeyExW(instancekey, i, guidstring, &guidstring_size, NULL, NULL, NULL, NULL);
if (res != ERROR_SUCCESS) break;
item = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnumItem));
if (!item) { hr = E_OUTOFMEMORY; break; }
hr = CLSIDFromString(guidstring, &clsid);
if (SUCCEEDED(hr))
{
hr = CreateComponentInfo(&clsid, (IWICComponentInfo**)&item->unk);
if (SUCCEEDED(hr))
list_add_tail(&This->objects, &item->entry);
}
if (!SUCCEEDED(hr))
{
HeapFree(GetProcessHeap(), 0, item);
hr = S_OK;
}
}
RegCloseKey(instancekey);
}
RegCloseKey(catidkey);
}
if (res != ERROR_SUCCESS && res != ERROR_NO_MORE_ITEMS)
hr = HRESULT_FROM_WIN32(res);
}
RegCloseKey(clsidkey);
if (SUCCEEDED(hr))
{
IEnumUnknown_Reset((IEnumUnknown*)This);
*ppIEnumUnknown = (IEnumUnknown*)This;
}
else
{
*ppIEnumUnknown = NULL;
IUnknown_Release((IUnknown*)This);
}
return hr;
}