git.oblomov.eu Git - wine/blob - dlls/windowscodecs/info.c

   1 /*
   2  * Copyright 2009 Vincent Povirk for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winreg.h"
  28 #include "objbase.h"
  29 #include "wincodec.h"
  30
  31 #include "wincodecs_private.h"
  32
  33 #include "wine/debug.h"
  34 #include "wine/unicode.h"
  35 #include "wine/list.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  38
  39 static WCHAR const mimetypes_valuename[] = {'M','i','m','e','T','y','p','e','s',0};
  40 static WCHAR const pixelformats_keyname[] = {'P','i','x','e','l','F','o','r','m','a','t','s',0};
  41
  42 static HRESULT ComponentInfo_GetStringValue(HKEY classkey, LPCWSTR value,
  43     UINT buffer_size, WCHAR *buffer, UINT *actual_size)
  44 {
  45     LONG ret;
  46     DWORD cbdata=buffer_size * sizeof(WCHAR);
  47
  48     if (!actual_size)
  49         return E_INVALIDARG;
  50
  51     ret = RegGetValueW(classkey, NULL, value, RRF_RT_REG_SZ|RRF_NOEXPAND, NULL,
  52         buffer, &cbdata);
  53
  54     if (ret == 0 || ret == ERROR_MORE_DATA)
  55         *actual_size = cbdata/sizeof(WCHAR);
  56
  57     if (!buffer && buffer_size != 0)
  58         /* Yes, native returns the correct size in this case. */
  59         return E_INVALIDARG;
  60
  61     if (ret == ERROR_MORE_DATA)
  62         return WINCODEC_ERR_INSUFFICIENTBUFFER;
  63
  64     return HRESULT_FROM_WIN32(ret);
  65 }
  66
  67 typedef struct {
  68     IWICBitmapDecoderInfo IWICBitmapDecoderInfo_iface;
  69     LONG ref;
  70     HKEY classkey;
  71     CLSID clsid;
  72 } BitmapDecoderInfo;
  73
  74 static inline BitmapDecoderInfo *impl_from_IWICBitmapDecoderInfo(IWICBitmapDecoderInfo *iface)
  75 {
  76     return CONTAINING_RECORD(iface, BitmapDecoderInfo, IWICBitmapDecoderInfo_iface);
  77 }
  78
  79 static HRESULT WINAPI BitmapDecoderInfo_QueryInterface(IWICBitmapDecoderInfo *iface, REFIID iid,
  80     void **ppv)
  81 {
  82     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
  83     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  84
  85     if (!ppv) return E_INVALIDARG;
  86
  87     if (IsEqualIID(&IID_IUnknown, iid) ||
  88         IsEqualIID(&IID_IWICComponentInfo, iid) ||
  89         IsEqualIID(&IID_IWICBitmapCodecInfo, iid) ||
  90         IsEqualIID(&IID_IWICBitmapDecoderInfo ,iid))
  91     {
  92         *ppv = This;
  93     }
  94     else
  95     {
  96         *ppv = NULL;
  97         return E_NOINTERFACE;
  98     }
  99
 100     IUnknown_AddRef((IUnknown*)*ppv);
 101     return S_OK;
 102 }
 103
 104 static ULONG WINAPI BitmapDecoderInfo_AddRef(IWICBitmapDecoderInfo *iface)
 105 {
 106     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 107     ULONG ref = InterlockedIncrement(&This->ref);
 108
 109     TRACE("(%p) refcount=%u\n", iface, ref);
 110
 111     return ref;
 112 }
 113
 114 static ULONG WINAPI BitmapDecoderInfo_Release(IWICBitmapDecoderInfo *iface)
 115 {
 116     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 117     ULONG ref = InterlockedDecrement(&This->ref);
 118
 119     TRACE("(%p) refcount=%u\n", iface, ref);
 120
 121     if (ref == 0)
 122     {
 123         RegCloseKey(This->classkey);
 124         HeapFree(GetProcessHeap(), 0, This);
 125     }
 126
 127     return ref;
 128 }
 129
 130 static HRESULT WINAPI BitmapDecoderInfo_GetComponentType(IWICBitmapDecoderInfo *iface,
 131     WICComponentType *pType)
 132 {
 133     TRACE("(%p,%p)\n", iface, pType);
 134     *pType = WICDecoder;
 135     return S_OK;
 136 }
 137
 138 static HRESULT WINAPI BitmapDecoderInfo_GetCLSID(IWICBitmapDecoderInfo *iface, CLSID *pclsid)
 139 {
 140     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 141     TRACE("(%p,%p)\n", iface, pclsid);
 142
 143     if (!pclsid)
 144         return E_INVALIDARG;
 145
 146     memcpy(pclsid, &This->clsid, sizeof(CLSID));
 147
 148     return S_OK;
 149 }
 150
 151 static HRESULT WINAPI BitmapDecoderInfo_GetSigningStatus(IWICBitmapDecoderInfo *iface, DWORD *pStatus)
 152 {
 153     FIXME("(%p,%p): stub\n", iface, pStatus);
 154     return E_NOTIMPL;
 155 }
 156
 157 static HRESULT WINAPI BitmapDecoderInfo_GetAuthor(IWICBitmapDecoderInfo *iface, UINT cchAuthor,
 158     WCHAR *wzAuthor, UINT *pcchActual)
 159 {
 160     FIXME("(%p,%u,%p,%p): stub\n", iface, cchAuthor, wzAuthor, pcchActual);
 161     return E_NOTIMPL;
 162 }
 163
 164 static HRESULT WINAPI BitmapDecoderInfo_GetVendorGUID(IWICBitmapDecoderInfo *iface, GUID *pguidVendor)
 165 {
 166     FIXME("(%p,%p): stub\n", iface, pguidVendor);
 167     return E_NOTIMPL;
 168 }
 169
 170 static HRESULT WINAPI BitmapDecoderInfo_GetVersion(IWICBitmapDecoderInfo *iface, UINT cchVersion,
 171     WCHAR *wzVersion, UINT *pcchActual)
 172 {
 173     FIXME("(%p,%u,%p,%p): stub\n", iface, cchVersion, wzVersion, pcchActual);
 174     return E_NOTIMPL;
 175 }
 176
 177 static HRESULT WINAPI BitmapDecoderInfo_GetSpecVersion(IWICBitmapDecoderInfo *iface, UINT cchSpecVersion,
 178     WCHAR *wzSpecVersion, UINT *pcchActual)
 179 {
 180     FIXME("(%p,%u,%p,%p): stub\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
 181     return E_NOTIMPL;
 182 }
 183
 184 static HRESULT WINAPI BitmapDecoderInfo_GetFriendlyName(IWICBitmapDecoderInfo *iface, UINT cchFriendlyName,
 185     WCHAR *wzFriendlyName, UINT *pcchActual)
 186 {
 187     FIXME("(%p,%u,%p,%p): stub\n", iface, cchFriendlyName, wzFriendlyName, pcchActual);
 188     return E_NOTIMPL;
 189 }
 190
 191 static HRESULT WINAPI BitmapDecoderInfo_GetContainerFormat(IWICBitmapDecoderInfo *iface,
 192     GUID *pguidContainerFormat)
 193 {
 194     FIXME("(%p,%p): stub\n", iface, pguidContainerFormat);
 195     return E_NOTIMPL;
 196 }
 197
 198 static HRESULT WINAPI BitmapDecoderInfo_GetPixelFormats(IWICBitmapDecoderInfo *iface,
 199     UINT cFormats, GUID *pguidPixelFormats, UINT *pcActual)
 200 {
 201     FIXME("(%p,%u,%p,%p): stub\n", iface, cFormats, pguidPixelFormats, pcActual);
 202     return E_NOTIMPL;
 203 }
 204
 205 static HRESULT WINAPI BitmapDecoderInfo_GetColorManagementVersion(IWICBitmapDecoderInfo *iface,
 206     UINT cchColorManagementVersion, WCHAR *wzColorManagementVersion, UINT *pcchActual)
 207 {
 208     FIXME("(%p,%u,%p,%p): stub\n", iface, cchColorManagementVersion, wzColorManagementVersion, pcchActual);
 209     return E_NOTIMPL;
 210 }
 211
 212 static HRESULT WINAPI BitmapDecoderInfo_GetDeviceManufacturer(IWICBitmapDecoderInfo *iface,
 213     UINT cchDeviceManufacturer, WCHAR *wzDeviceManufacturer, UINT *pcchActual)
 214 {
 215     FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceManufacturer, wzDeviceManufacturer, pcchActual);
 216     return E_NOTIMPL;
 217 }
 218
 219 static HRESULT WINAPI BitmapDecoderInfo_GetDeviceModels(IWICBitmapDecoderInfo *iface,
 220     UINT cchDeviceModels, WCHAR *wzDeviceModels, UINT *pcchActual)
 221 {
 222     FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceModels, wzDeviceModels, pcchActual);
 223     return E_NOTIMPL;
 224 }
 225
 226 static HRESULT WINAPI BitmapDecoderInfo_GetMimeTypes(IWICBitmapDecoderInfo *iface,
 227     UINT cchMimeTypes, WCHAR *wzMimeTypes, UINT *pcchActual)
 228 {
 229     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 230
 231     TRACE("(%p,%u,%p,%p)\n", iface, cchMimeTypes, wzMimeTypes, pcchActual);
 232
 233     return ComponentInfo_GetStringValue(This->classkey, mimetypes_valuename,
 234         cchMimeTypes, wzMimeTypes, pcchActual);
 235 }
 236
 237 static HRESULT WINAPI BitmapDecoderInfo_GetFileExtensions(IWICBitmapDecoderInfo *iface,
 238     UINT cchFileExtensions, WCHAR *wzFileExtensions, UINT *pcchActual)
 239 {
 240     FIXME("(%p,%u,%p,%p): stub\n", iface, cchFileExtensions, wzFileExtensions, pcchActual);
 241     return E_NOTIMPL;
 242 }
 243
 244 static HRESULT WINAPI BitmapDecoderInfo_DoesSupportAnimation(IWICBitmapDecoderInfo *iface,
 245     BOOL *pfSupportAnimation)
 246 {
 247     FIXME("(%p,%p): stub\n", iface, pfSupportAnimation);
 248     return E_NOTIMPL;
 249 }
 250
 251 static HRESULT WINAPI BitmapDecoderInfo_DoesSupportChromaKey(IWICBitmapDecoderInfo *iface,
 252     BOOL *pfSupportChromaKey)
 253 {
 254     FIXME("(%p,%p): stub\n", iface, pfSupportChromaKey);
 255     return E_NOTIMPL;
 256 }
 257
 258 static HRESULT WINAPI BitmapDecoderInfo_DoesSupportLossless(IWICBitmapDecoderInfo *iface,
 259     BOOL *pfSupportLossless)
 260 {
 261     FIXME("(%p,%p): stub\n", iface, pfSupportLossless);
 262     return E_NOTIMPL;
 263 }
 264
 265 static HRESULT WINAPI BitmapDecoderInfo_DoesSupportMultiframe(IWICBitmapDecoderInfo *iface,
 266     BOOL *pfSupportMultiframe)
 267 {
 268     FIXME("(%p,%p): stub\n", iface, pfSupportMultiframe);
 269     return E_NOTIMPL;
 270 }
 271
 272 static HRESULT WINAPI BitmapDecoderInfo_MatchesMimeType(IWICBitmapDecoderInfo *iface,
 273     LPCWSTR wzMimeType, BOOL *pfMatches)
 274 {
 275     FIXME("(%p,%s,%p): stub\n", iface, debugstr_w(wzMimeType), pfMatches);
 276     return E_NOTIMPL;
 277 }
 278
 279 static HRESULT WINAPI BitmapDecoderInfo_GetPatterns(IWICBitmapDecoderInfo *iface,
 280     UINT cbSizePatterns, WICBitmapPattern *pPatterns, UINT *pcPatterns, UINT *pcbPatternsActual)
 281 {
 282     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 283     UINT pattern_count=0, patterns_size=0;
 284     WCHAR subkeyname[11];
 285     LONG res;
 286     HKEY patternskey, patternkey;
 287     static const WCHAR uintformatW[] = {'%','u',0};
 288     static const WCHAR patternsW[] = {'P','a','t','t','e','r','n','s',0};
 289     static const WCHAR positionW[] = {'P','o','s','i','t','i','o','n',0};
 290     static const WCHAR lengthW[] = {'L','e','n','g','t','h',0};
 291     static const WCHAR patternW[] = {'P','a','t','t','e','r','n',0};
 292     static const WCHAR maskW[] = {'M','a','s','k',0};
 293     static const WCHAR endofstreamW[] = {'E','n','d','O','f','S','t','r','e','a','m',0};
 294     HRESULT hr=S_OK;
 295     UINT i;
 296     BYTE *bPatterns=(BYTE*)pPatterns;
 297     DWORD length, valuesize;
 298
 299     TRACE("(%p,%i,%p,%p,%p)\n", iface, cbSizePatterns, pPatterns, pcPatterns, pcbPatternsActual);
 300
 301     res = RegOpenKeyExW(This->classkey, patternsW, 0, KEY_READ, &patternskey);
 302     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
 303
 304     res = RegQueryInfoKeyW(patternskey, NULL, NULL, NULL, &pattern_count, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
 305     if (res == ERROR_SUCCESS)
 306     {
 307         patterns_size = pattern_count * sizeof(WICBitmapPattern);
 308
 309         for (i=0; i<pattern_count; i++)
 310         {
 311             snprintfW(subkeyname, 11, uintformatW, i);
 312             res = RegOpenKeyExW(patternskey, subkeyname, 0, KEY_READ, &patternkey);
 313             if (res == ERROR_SUCCESS)
 314             {
 315                 valuesize = sizeof(ULONG);
 316                 res = RegGetValueW(patternkey, NULL, lengthW, RRF_RT_DWORD, NULL,
 317                     &length, &valuesize);
 318                 patterns_size += length*2;
 319
 320                 if ((cbSizePatterns >= patterns_size) && (res == ERROR_SUCCESS))
 321                 {
 322                     pPatterns[i].Length = length;
 323
 324                     pPatterns[i].EndOfStream = 0;
 325                     valuesize = sizeof(BOOL);
 326                     RegGetValueW(patternkey, NULL, endofstreamW, RRF_RT_DWORD, NULL,
 327                         &pPatterns[i].EndOfStream, &valuesize);
 328
 329                     pPatterns[i].Position.QuadPart = 0;
 330                     valuesize = sizeof(ULARGE_INTEGER);
 331                     res = RegGetValueW(patternkey, NULL, positionW, RRF_RT_DWORD|RRF_RT_QWORD, NULL,
 332                         &pPatterns[i].Position, &valuesize);
 333
 334                     if (res == ERROR_SUCCESS)
 335                     {
 336                         pPatterns[i].Pattern = bPatterns+patterns_size-length*2;
 337                         valuesize = length;
 338                         res = RegGetValueW(patternkey, NULL, patternW, RRF_RT_REG_BINARY, NULL,
 339                             pPatterns[i].Pattern, &valuesize);
 340                     }
 341
 342                     if (res == ERROR_SUCCESS)
 343                     {
 344                         pPatterns[i].Mask = bPatterns+patterns_size-length;
 345                         valuesize = length;
 346                         res = RegGetValueW(patternkey, NULL, maskW, RRF_RT_REG_BINARY, NULL,
 347                             pPatterns[i].Mask, &valuesize);
 348                     }
 349                 }
 350
 351                 RegCloseKey(patternkey);
 352             }
 353             if (res != ERROR_SUCCESS)
 354             {
 355                 hr = HRESULT_FROM_WIN32(res);
 356                 break;
 357             }
 358         }
 359     }
 360     else hr = HRESULT_FROM_WIN32(res);
 361
 362     RegCloseKey(patternskey);
 363
 364     if (hr == S_OK)
 365     {
 366         *pcPatterns = pattern_count;
 367         *pcbPatternsActual = patterns_size;
 368         if (pPatterns && cbSizePatterns < patterns_size)
 369             hr = WINCODEC_ERR_INSUFFICIENTBUFFER;
 370     }
 371
 372     return hr;
 373 }
 374
 375 static HRESULT WINAPI BitmapDecoderInfo_MatchesPattern(IWICBitmapDecoderInfo *iface,
 376     IStream *pIStream, BOOL *pfMatches)
 377 {
 378     WICBitmapPattern *patterns;
 379     UINT pattern_count=0, patterns_size=0;
 380     HRESULT hr;
 381     int i, pos;
 382     BYTE *data=NULL;
 383     ULONG datasize=0;
 384     ULONG bytesread;
 385     LARGE_INTEGER seekpos;
 386
 387     TRACE("(%p,%p,%p)\n", iface, pIStream, pfMatches);
 388
 389     hr = BitmapDecoderInfo_GetPatterns(iface, 0, NULL, &pattern_count, &patterns_size);
 390     if (FAILED(hr)) return hr;
 391
 392     patterns = HeapAlloc(GetProcessHeap(), 0, patterns_size);
 393     if (!patterns) return E_OUTOFMEMORY;
 394
 395     hr = BitmapDecoderInfo_GetPatterns(iface, patterns_size, patterns, &pattern_count, &patterns_size);
 396     if (FAILED(hr)) goto end;
 397
 398     for (i=0; i<pattern_count; i++)
 399     {
 400         if (datasize < patterns[i].Length)
 401         {
 402             HeapFree(GetProcessHeap(), 0, data);
 403             datasize = patterns[i].Length;
 404             data = HeapAlloc(GetProcessHeap(), 0, patterns[i].Length);
 405             if (!data)
 406             {
 407                 hr = E_OUTOFMEMORY;
 408                 break;
 409             }
 410         }
 411
 412         if (patterns[i].EndOfStream)
 413             seekpos.QuadPart = -patterns[i].Position.QuadPart;
 414         else
 415             seekpos.QuadPart = patterns[i].Position.QuadPart;
 416         hr = IStream_Seek(pIStream, seekpos, patterns[i].EndOfStream ? STREAM_SEEK_END : STREAM_SEEK_SET, NULL);
 417         if (hr == STG_E_INVALIDFUNCTION) continue; /* before start of stream */
 418         if (FAILED(hr)) break;
 419
 420         hr = IStream_Read(pIStream, data, patterns[i].Length, &bytesread);
 421         if (hr == S_FALSE || (hr == S_OK && bytesread != patterns[i].Length)) /* past end of stream */
 422             continue;
 423         if (FAILED(hr)) break;
 424
 425         for (pos=0; pos<patterns[i].Length; pos++)
 426         {
 427             if ((data[pos] & patterns[i].Mask[pos]) != patterns[i].Pattern[pos])
 428                 break;
 429         }
 430         if (pos == patterns[i].Length) /* matches pattern */
 431         {
 432             hr = S_OK;
 433             *pfMatches = TRUE;
 434             break;
 435         }
 436     }
 437
 438     if (i == pattern_count) /* does not match any pattern */
 439     {
 440         hr = S_OK;
 441         *pfMatches = FALSE;
 442     }
 443
 444 end:
 445     HeapFree(GetProcessHeap(), 0, patterns);
 446     HeapFree(GetProcessHeap(), 0, data);
 447
 448     return hr;
 449 }
 450
 451 static HRESULT WINAPI BitmapDecoderInfo_CreateInstance(IWICBitmapDecoderInfo *iface,
 452     IWICBitmapDecoder **ppIBitmapDecoder)
 453 {
 454     BitmapDecoderInfo *This = impl_from_IWICBitmapDecoderInfo(iface);
 455
 456     TRACE("(%p,%p)\n", iface, ppIBitmapDecoder);
 457
 458     return CoCreateInstance(&This->clsid, NULL, CLSCTX_INPROC_SERVER,
 459         &IID_IWICBitmapDecoder, (void**)ppIBitmapDecoder);
 460 }
 461
 462 static const IWICBitmapDecoderInfoVtbl BitmapDecoderInfo_Vtbl = {
 463     BitmapDecoderInfo_QueryInterface,
 464     BitmapDecoderInfo_AddRef,
 465     BitmapDecoderInfo_Release,
 466     BitmapDecoderInfo_GetComponentType,
 467     BitmapDecoderInfo_GetCLSID,
 468     BitmapDecoderInfo_GetSigningStatus,
 469     BitmapDecoderInfo_GetAuthor,
 470     BitmapDecoderInfo_GetVendorGUID,
 471     BitmapDecoderInfo_GetVersion,
 472     BitmapDecoderInfo_GetSpecVersion,
 473     BitmapDecoderInfo_GetFriendlyName,
 474     BitmapDecoderInfo_GetContainerFormat,
 475     BitmapDecoderInfo_GetPixelFormats,
 476     BitmapDecoderInfo_GetColorManagementVersion,
 477     BitmapDecoderInfo_GetDeviceManufacturer,
 478     BitmapDecoderInfo_GetDeviceModels,
 479     BitmapDecoderInfo_GetMimeTypes,
 480     BitmapDecoderInfo_GetFileExtensions,
 481     BitmapDecoderInfo_DoesSupportAnimation,
 482     BitmapDecoderInfo_DoesSupportChromaKey,
 483     BitmapDecoderInfo_DoesSupportLossless,
 484     BitmapDecoderInfo_DoesSupportMultiframe,
 485     BitmapDecoderInfo_MatchesMimeType,
 486     BitmapDecoderInfo_GetPatterns,
 487     BitmapDecoderInfo_MatchesPattern,
 488     BitmapDecoderInfo_CreateInstance
 489 };
 490
 491 static HRESULT BitmapDecoderInfo_Constructor(HKEY classkey, REFCLSID clsid, IWICComponentInfo **ppIInfo)
 492 {
 493     BitmapDecoderInfo *This;
 494
 495     This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapDecoderInfo));
 496     if (!This)
 497     {
 498         RegCloseKey(classkey);
 499         return E_OUTOFMEMORY;
 500     }
 501
 502     This->IWICBitmapDecoderInfo_iface.lpVtbl = &BitmapDecoderInfo_Vtbl;
 503     This->ref = 1;
 504     This->classkey = classkey;
 505     memcpy(&This->clsid, clsid, sizeof(CLSID));
 506
 507     *ppIInfo = (IWICComponentInfo*)This;
 508     return S_OK;
 509 }
 510
 511 typedef struct {
 512     IWICBitmapEncoderInfo IWICBitmapEncoderInfo_iface;
 513     LONG ref;
 514     HKEY classkey;
 515     CLSID clsid;
 516 } BitmapEncoderInfo;
 517
 518 static inline BitmapEncoderInfo *impl_from_IWICBitmapEncoderInfo(IWICBitmapEncoderInfo *iface)
 519 {
 520     return CONTAINING_RECORD(iface, BitmapEncoderInfo, IWICBitmapEncoderInfo_iface);
 521 }
 522
 523 static HRESULT WINAPI BitmapEncoderInfo_QueryInterface(IWICBitmapEncoderInfo *iface, REFIID iid,
 524     void **ppv)
 525 {
 526     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 527     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 528
 529     if (!ppv) return E_INVALIDARG;
 530
 531     if (IsEqualIID(&IID_IUnknown, iid) ||
 532         IsEqualIID(&IID_IWICComponentInfo, iid) ||
 533         IsEqualIID(&IID_IWICBitmapCodecInfo, iid) ||
 534         IsEqualIID(&IID_IWICBitmapEncoderInfo ,iid))
 535     {
 536         *ppv = This;
 537     }
 538     else
 539     {
 540         *ppv = NULL;
 541         return E_NOINTERFACE;
 542     }
 543
 544     IUnknown_AddRef((IUnknown*)*ppv);
 545     return S_OK;
 546 }
 547
 548 static ULONG WINAPI BitmapEncoderInfo_AddRef(IWICBitmapEncoderInfo *iface)
 549 {
 550     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 551     ULONG ref = InterlockedIncrement(&This->ref);
 552
 553     TRACE("(%p) refcount=%u\n", iface, ref);
 554
 555     return ref;
 556 }
 557
 558 static ULONG WINAPI BitmapEncoderInfo_Release(IWICBitmapEncoderInfo *iface)
 559 {
 560     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 561     ULONG ref = InterlockedDecrement(&This->ref);
 562
 563     TRACE("(%p) refcount=%u\n", iface, ref);
 564
 565     if (ref == 0)
 566     {
 567         RegCloseKey(This->classkey);
 568         HeapFree(GetProcessHeap(), 0, This);
 569     }
 570
 571     return ref;
 572 }
 573
 574 static HRESULT WINAPI BitmapEncoderInfo_GetComponentType(IWICBitmapEncoderInfo *iface,
 575     WICComponentType *pType)
 576 {
 577     TRACE("(%p,%p)\n", iface, pType);
 578     *pType = WICEncoder;
 579     return S_OK;
 580 }
 581
 582 static HRESULT WINAPI BitmapEncoderInfo_GetCLSID(IWICBitmapEncoderInfo *iface, CLSID *pclsid)
 583 {
 584     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 585     TRACE("(%p,%p)\n", iface, pclsid);
 586
 587     if (!pclsid)
 588         return E_INVALIDARG;
 589
 590     memcpy(pclsid, &This->clsid, sizeof(CLSID));
 591
 592     return S_OK;
 593 }
 594
 595 static HRESULT WINAPI BitmapEncoderInfo_GetSigningStatus(IWICBitmapEncoderInfo *iface, DWORD *pStatus)
 596 {
 597     FIXME("(%p,%p): stub\n", iface, pStatus);
 598     return E_NOTIMPL;
 599 }
 600
 601 static HRESULT WINAPI BitmapEncoderInfo_GetAuthor(IWICBitmapEncoderInfo *iface, UINT cchAuthor,
 602     WCHAR *wzAuthor, UINT *pcchActual)
 603 {
 604     FIXME("(%p,%u,%p,%p): stub\n", iface, cchAuthor, wzAuthor, pcchActual);
 605     return E_NOTIMPL;
 606 }
 607
 608 static HRESULT WINAPI BitmapEncoderInfo_GetVendorGUID(IWICBitmapEncoderInfo *iface, GUID *pguidVendor)
 609 {
 610     FIXME("(%p,%p): stub\n", iface, pguidVendor);
 611     return E_NOTIMPL;
 612 }
 613
 614 static HRESULT WINAPI BitmapEncoderInfo_GetVersion(IWICBitmapEncoderInfo *iface, UINT cchVersion,
 615     WCHAR *wzVersion, UINT *pcchActual)
 616 {
 617     FIXME("(%p,%u,%p,%p): stub\n", iface, cchVersion, wzVersion, pcchActual);
 618     return E_NOTIMPL;
 619 }
 620
 621 static HRESULT WINAPI BitmapEncoderInfo_GetSpecVersion(IWICBitmapEncoderInfo *iface, UINT cchSpecVersion,
 622     WCHAR *wzSpecVersion, UINT *pcchActual)
 623 {
 624     FIXME("(%p,%u,%p,%p): stub\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
 625     return E_NOTIMPL;
 626 }
 627
 628 static HRESULT WINAPI BitmapEncoderInfo_GetFriendlyName(IWICBitmapEncoderInfo *iface, UINT cchFriendlyName,
 629     WCHAR *wzFriendlyName, UINT *pcchActual)
 630 {
 631     FIXME("(%p,%u,%p,%p): stub\n", iface, cchFriendlyName, wzFriendlyName, pcchActual);
 632     return E_NOTIMPL;
 633 }
 634
 635 static HRESULT WINAPI BitmapEncoderInfo_GetContainerFormat(IWICBitmapEncoderInfo *iface,
 636     GUID *pguidContainerFormat)
 637 {
 638     FIXME("(%p,%p): stub\n", iface, pguidContainerFormat);
 639     return E_NOTIMPL;
 640 }
 641
 642 static HRESULT WINAPI BitmapEncoderInfo_GetPixelFormats(IWICBitmapEncoderInfo *iface,
 643     UINT cFormats, GUID *pguidPixelFormats, UINT *pcActual)
 644 {
 645     FIXME("(%p,%u,%p,%p): stub\n", iface, cFormats, pguidPixelFormats, pcActual);
 646     return E_NOTIMPL;
 647 }
 648
 649 static HRESULT WINAPI BitmapEncoderInfo_GetColorManagementVersion(IWICBitmapEncoderInfo *iface,
 650     UINT cchColorManagementVersion, WCHAR *wzColorManagementVersion, UINT *pcchActual)
 651 {
 652     FIXME("(%p,%u,%p,%p): stub\n", iface, cchColorManagementVersion, wzColorManagementVersion, pcchActual);
 653     return E_NOTIMPL;
 654 }
 655
 656 static HRESULT WINAPI BitmapEncoderInfo_GetDeviceManufacturer(IWICBitmapEncoderInfo *iface,
 657     UINT cchDeviceManufacturer, WCHAR *wzDeviceManufacturer, UINT *pcchActual)
 658 {
 659     FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceManufacturer, wzDeviceManufacturer, pcchActual);
 660     return E_NOTIMPL;
 661 }
 662
 663 static HRESULT WINAPI BitmapEncoderInfo_GetDeviceModels(IWICBitmapEncoderInfo *iface,
 664     UINT cchDeviceModels, WCHAR *wzDeviceModels, UINT *pcchActual)
 665 {
 666     FIXME("(%p,%u,%p,%p): stub\n", iface, cchDeviceModels, wzDeviceModels, pcchActual);
 667     return E_NOTIMPL;
 668 }
 669
 670 static HRESULT WINAPI BitmapEncoderInfo_GetMimeTypes(IWICBitmapEncoderInfo *iface,
 671     UINT cchMimeTypes, WCHAR *wzMimeTypes, UINT *pcchActual)
 672 {
 673     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 674
 675     TRACE("(%p,%u,%p,%p)\n", iface, cchMimeTypes, wzMimeTypes, pcchActual);
 676
 677     return ComponentInfo_GetStringValue(This->classkey, mimetypes_valuename,
 678         cchMimeTypes, wzMimeTypes, pcchActual);
 679 }
 680
 681 static HRESULT WINAPI BitmapEncoderInfo_GetFileExtensions(IWICBitmapEncoderInfo *iface,
 682     UINT cchFileExtensions, WCHAR *wzFileExtensions, UINT *pcchActual)
 683 {
 684     FIXME("(%p,%u,%p,%p): stub\n", iface, cchFileExtensions, wzFileExtensions, pcchActual);
 685     return E_NOTIMPL;
 686 }
 687
 688 static HRESULT WINAPI BitmapEncoderInfo_DoesSupportAnimation(IWICBitmapEncoderInfo *iface,
 689     BOOL *pfSupportAnimation)
 690 {
 691     FIXME("(%p,%p): stub\n", iface, pfSupportAnimation);
 692     return E_NOTIMPL;
 693 }
 694
 695 static HRESULT WINAPI BitmapEncoderInfo_DoesSupportChromaKey(IWICBitmapEncoderInfo *iface,
 696     BOOL *pfSupportChromaKey)
 697 {
 698     FIXME("(%p,%p): stub\n", iface, pfSupportChromaKey);
 699     return E_NOTIMPL;
 700 }
 701
 702 static HRESULT WINAPI BitmapEncoderInfo_DoesSupportLossless(IWICBitmapEncoderInfo *iface,
 703     BOOL *pfSupportLossless)
 704 {
 705     FIXME("(%p,%p): stub\n", iface, pfSupportLossless);
 706     return E_NOTIMPL;
 707 }
 708
 709 static HRESULT WINAPI BitmapEncoderInfo_DoesSupportMultiframe(IWICBitmapEncoderInfo *iface,
 710     BOOL *pfSupportMultiframe)
 711 {
 712     FIXME("(%p,%p): stub\n", iface, pfSupportMultiframe);
 713     return E_NOTIMPL;
 714 }
 715
 716 static HRESULT WINAPI BitmapEncoderInfo_MatchesMimeType(IWICBitmapEncoderInfo *iface,
 717     LPCWSTR wzMimeType, BOOL *pfMatches)
 718 {
 719     FIXME("(%p,%s,%p): stub\n", iface, debugstr_w(wzMimeType), pfMatches);
 720     return E_NOTIMPL;
 721 }
 722
 723 static HRESULT WINAPI BitmapEncoderInfo_CreateInstance(IWICBitmapEncoderInfo *iface,
 724     IWICBitmapEncoder **ppIBitmapEncoder)
 725 {
 726     BitmapEncoderInfo *This = impl_from_IWICBitmapEncoderInfo(iface);
 727
 728     TRACE("(%p,%p)\n", iface, ppIBitmapEncoder);
 729
 730     return CoCreateInstance(&This->clsid, NULL, CLSCTX_INPROC_SERVER,
 731         &IID_IWICBitmapEncoder, (void**)ppIBitmapEncoder);
 732 }
 733
 734 static const IWICBitmapEncoderInfoVtbl BitmapEncoderInfo_Vtbl = {
 735     BitmapEncoderInfo_QueryInterface,
 736     BitmapEncoderInfo_AddRef,
 737     BitmapEncoderInfo_Release,
 738     BitmapEncoderInfo_GetComponentType,
 739     BitmapEncoderInfo_GetCLSID,
 740     BitmapEncoderInfo_GetSigningStatus,
 741     BitmapEncoderInfo_GetAuthor,
 742     BitmapEncoderInfo_GetVendorGUID,
 743     BitmapEncoderInfo_GetVersion,
 744     BitmapEncoderInfo_GetSpecVersion,
 745     BitmapEncoderInfo_GetFriendlyName,
 746     BitmapEncoderInfo_GetContainerFormat,
 747     BitmapEncoderInfo_GetPixelFormats,
 748     BitmapEncoderInfo_GetColorManagementVersion,
 749     BitmapEncoderInfo_GetDeviceManufacturer,
 750     BitmapEncoderInfo_GetDeviceModels,
 751     BitmapEncoderInfo_GetMimeTypes,
 752     BitmapEncoderInfo_GetFileExtensions,
 753     BitmapEncoderInfo_DoesSupportAnimation,
 754     BitmapEncoderInfo_DoesSupportChromaKey,
 755     BitmapEncoderInfo_DoesSupportLossless,
 756     BitmapEncoderInfo_DoesSupportMultiframe,
 757     BitmapEncoderInfo_MatchesMimeType,
 758     BitmapEncoderInfo_CreateInstance
 759 };
 760
 761 static HRESULT BitmapEncoderInfo_Constructor(HKEY classkey, REFCLSID clsid, IWICComponentInfo **ppIInfo)
 762 {
 763     BitmapEncoderInfo *This;
 764
 765     This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapEncoderInfo));
 766     if (!This)
 767     {
 768         RegCloseKey(classkey);
 769         return E_OUTOFMEMORY;
 770     }
 771
 772     This->IWICBitmapEncoderInfo_iface.lpVtbl = &BitmapEncoderInfo_Vtbl;
 773     This->ref = 1;
 774     This->classkey = classkey;
 775     memcpy(&This->clsid, clsid, sizeof(CLSID));
 776
 777     *ppIInfo = (IWICComponentInfo*)This;
 778     return S_OK;
 779 }
 780
 781 typedef struct {
 782     IWICFormatConverterInfo IWICFormatConverterInfo_iface;
 783     LONG ref;
 784     HKEY classkey;
 785     CLSID clsid;
 786 } FormatConverterInfo;
 787
 788 static inline FormatConverterInfo *impl_from_IWICFormatConverterInfo(IWICFormatConverterInfo *iface)
 789 {
 790     return CONTAINING_RECORD(iface, FormatConverterInfo, IWICFormatConverterInfo_iface);
 791 }
 792
 793 static HRESULT WINAPI FormatConverterInfo_QueryInterface(IWICFormatConverterInfo *iface, REFIID iid,
 794     void **ppv)
 795 {
 796     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 797     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 798
 799     if (!ppv) return E_INVALIDARG;
 800
 801     if (IsEqualIID(&IID_IUnknown, iid) ||
 802         IsEqualIID(&IID_IWICComponentInfo, iid) ||
 803         IsEqualIID(&IID_IWICFormatConverterInfo ,iid))
 804     {
 805         *ppv = This;
 806     }
 807     else
 808     {
 809         *ppv = NULL;
 810         return E_NOINTERFACE;
 811     }
 812
 813     IUnknown_AddRef((IUnknown*)*ppv);
 814     return S_OK;
 815 }
 816
 817 static ULONG WINAPI FormatConverterInfo_AddRef(IWICFormatConverterInfo *iface)
 818 {
 819     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 820     ULONG ref = InterlockedIncrement(&This->ref);
 821
 822     TRACE("(%p) refcount=%u\n", iface, ref);
 823
 824     return ref;
 825 }
 826
 827 static ULONG WINAPI FormatConverterInfo_Release(IWICFormatConverterInfo *iface)
 828 {
 829     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 830     ULONG ref = InterlockedDecrement(&This->ref);
 831
 832     TRACE("(%p) refcount=%u\n", iface, ref);
 833
 834     if (ref == 0)
 835     {
 836         RegCloseKey(This->classkey);
 837         HeapFree(GetProcessHeap(), 0, This);
 838     }
 839
 840     return ref;
 841 }
 842
 843 static HRESULT WINAPI FormatConverterInfo_GetComponentType(IWICFormatConverterInfo *iface,
 844     WICComponentType *pType)
 845 {
 846     TRACE("(%p,%p)\n", iface, pType);
 847     *pType = WICPixelFormatConverter;
 848     return S_OK;
 849 }
 850
 851 static HRESULT WINAPI FormatConverterInfo_GetCLSID(IWICFormatConverterInfo *iface, CLSID *pclsid)
 852 {
 853     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 854     TRACE("(%p,%p)\n", iface, pclsid);
 855
 856     if (!pclsid)
 857         return E_INVALIDARG;
 858
 859     memcpy(pclsid, &This->clsid, sizeof(CLSID));
 860
 861     return S_OK;
 862 }
 863
 864 static HRESULT WINAPI FormatConverterInfo_GetSigningStatus(IWICFormatConverterInfo *iface, DWORD *pStatus)
 865 {
 866     FIXME("(%p,%p): stub\n", iface, pStatus);
 867     return E_NOTIMPL;
 868 }
 869
 870 static HRESULT WINAPI FormatConverterInfo_GetAuthor(IWICFormatConverterInfo *iface, UINT cchAuthor,
 871     WCHAR *wzAuthor, UINT *pcchActual)
 872 {
 873     FIXME("(%p,%u,%p,%p): stub\n", iface, cchAuthor, wzAuthor, pcchActual);
 874     return E_NOTIMPL;
 875 }
 876
 877 static HRESULT WINAPI FormatConverterInfo_GetVendorGUID(IWICFormatConverterInfo *iface, GUID *pguidVendor)
 878 {
 879     FIXME("(%p,%p): stub\n", iface, pguidVendor);
 880     return E_NOTIMPL;
 881 }
 882
 883 static HRESULT WINAPI FormatConverterInfo_GetVersion(IWICFormatConverterInfo *iface, UINT cchVersion,
 884     WCHAR *wzVersion, UINT *pcchActual)
 885 {
 886     FIXME("(%p,%u,%p,%p): stub\n", iface, cchVersion, wzVersion, pcchActual);
 887     return E_NOTIMPL;
 888 }
 889
 890 static HRESULT WINAPI FormatConverterInfo_GetSpecVersion(IWICFormatConverterInfo *iface, UINT cchSpecVersion,
 891     WCHAR *wzSpecVersion, UINT *pcchActual)
 892 {
 893     FIXME("(%p,%u,%p,%p): stub\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
 894     return E_NOTIMPL;
 895 }
 896
 897 static HRESULT WINAPI FormatConverterInfo_GetFriendlyName(IWICFormatConverterInfo *iface, UINT cchFriendlyName,
 898     WCHAR *wzFriendlyName, UINT *pcchActual)
 899 {
 900     FIXME("(%p,%u,%p,%p): stub\n", iface, cchFriendlyName, wzFriendlyName, pcchActual);
 901     return E_NOTIMPL;
 902 }
 903
 904 static HRESULT WINAPI FormatConverterInfo_GetPixelFormats(IWICFormatConverterInfo *iface,
 905     UINT cFormats, GUID *pguidPixelFormats, UINT *pcActual)
 906 {
 907     FIXME("(%p,%u,%p,%p): stub\n", iface, cFormats, pguidPixelFormats, pcActual);
 908     return E_NOTIMPL;
 909 }
 910
 911 static HRESULT WINAPI FormatConverterInfo_CreateInstance(IWICFormatConverterInfo *iface,
 912     IWICFormatConverter **ppIFormatConverter)
 913 {
 914     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 915
 916     TRACE("(%p,%p)\n", iface, ppIFormatConverter);
 917
 918     return CoCreateInstance(&This->clsid, NULL, CLSCTX_INPROC_SERVER,
 919         &IID_IWICFormatConverter, (void**)ppIFormatConverter);
 920 }
 921
 922 static BOOL ConverterSupportsFormat(IWICFormatConverterInfo *iface, const WCHAR *formatguid)
 923 {
 924     LONG res;
 925     FormatConverterInfo *This = impl_from_IWICFormatConverterInfo(iface);
 926     HKEY formats_key, guid_key;
 927
 928     /* Avoid testing using IWICFormatConverter_GetPixelFormats because that
 929         would be O(n). A registry test should do better. */
 930
 931     res = RegOpenKeyExW(This->classkey, pixelformats_keyname, 0, KEY_READ, &formats_key);
 932     if (res != ERROR_SUCCESS) return FALSE;
 933
 934     res = RegOpenKeyExW(formats_key, formatguid, 0, KEY_READ, &guid_key);
 935     if (res == ERROR_SUCCESS) RegCloseKey(guid_key);
 936
 937     RegCloseKey(formats_key);
 938
 939     return (res == ERROR_SUCCESS);
 940 }
 941
 942 static const IWICFormatConverterInfoVtbl FormatConverterInfo_Vtbl = {
 943     FormatConverterInfo_QueryInterface,
 944     FormatConverterInfo_AddRef,
 945     FormatConverterInfo_Release,
 946     FormatConverterInfo_GetComponentType,
 947     FormatConverterInfo_GetCLSID,
 948     FormatConverterInfo_GetSigningStatus,
 949     FormatConverterInfo_GetAuthor,
 950     FormatConverterInfo_GetVendorGUID,
 951     FormatConverterInfo_GetVersion,
 952     FormatConverterInfo_GetSpecVersion,
 953     FormatConverterInfo_GetFriendlyName,
 954     FormatConverterInfo_GetPixelFormats,
 955     FormatConverterInfo_CreateInstance
 956 };
 957
 958 static HRESULT FormatConverterInfo_Constructor(HKEY classkey, REFCLSID clsid, IWICComponentInfo **ppIInfo)
 959 {
 960     FormatConverterInfo *This;
 961
 962     This = HeapAlloc(GetProcessHeap(), 0, sizeof(FormatConverterInfo));
 963     if (!This)
 964     {
 965         RegCloseKey(classkey);
 966         return E_OUTOFMEMORY;
 967     }
 968
 969     This->IWICFormatConverterInfo_iface.lpVtbl = &FormatConverterInfo_Vtbl;
 970     This->ref = 1;
 971     This->classkey = classkey;
 972     memcpy(&This->clsid, clsid, sizeof(CLSID));
 973
 974     *ppIInfo = (IWICComponentInfo*)This;
 975     return S_OK;
 976 }
 977
 978 static WCHAR const clsid_keyname[] = {'C','L','S','I','D',0};
 979 static WCHAR const instance_keyname[] = {'I','n','s','t','a','n','c','e',0};
 980
 981 struct category {
 982     WICComponentType type;
 983     const GUID *catid;
 984     HRESULT (*constructor)(HKEY,REFCLSID,IWICComponentInfo**);
 985 };
 986
 987 static const struct category categories[] = {
 988     {WICDecoder, &CATID_WICBitmapDecoders, BitmapDecoderInfo_Constructor},
 989     {WICEncoder, &CATID_WICBitmapEncoders, BitmapEncoderInfo_Constructor},
 990     {WICPixelFormatConverter, &CATID_WICFormatConverters, FormatConverterInfo_Constructor},
 991     {0}
 992 };
 993
 994 HRESULT CreateComponentInfo(REFCLSID clsid, IWICComponentInfo **ppIInfo)
 995 {
 996     HKEY clsidkey;
 997     HKEY classkey;
 998     HKEY catidkey;
 999     HKEY instancekey;
1000     WCHAR guidstring[39];
1001     LONG res;
1002     const struct category *category;
1003     int found=0;
1004     HRESULT hr;
1005
1006     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, KEY_READ, &clsidkey);
1007     if (res != ERROR_SUCCESS)
1008         return HRESULT_FROM_WIN32(res);
1009
1010     for (category=categories; category->type; category++)
1011     {
1012         StringFromGUID2(category->catid, guidstring, 39);
1013         res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &catidkey);
1014         if (res == ERROR_SUCCESS)
1015         {
1016             res = RegOpenKeyExW(catidkey, instance_keyname, 0, KEY_READ, &instancekey);
1017             if (res == ERROR_SUCCESS)
1018             {
1019                 StringFromGUID2(clsid, guidstring, 39);
1020                 res = RegOpenKeyExW(instancekey, guidstring, 0, KEY_READ, &classkey);
1021                 if (res == ERROR_SUCCESS)
1022                 {
1023                     RegCloseKey(classkey);
1024                     found = 1;
1025                 }
1026                 RegCloseKey(instancekey);
1027             }
1028             RegCloseKey(catidkey);
1029         }
1030         if (found) break;
1031     }
1032
1033     if (found)
1034     {
1035         res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &classkey);
1036         if (res == ERROR_SUCCESS)
1037             hr = category->constructor(classkey, clsid, ppIInfo);
1038         else
1039             hr = HRESULT_FROM_WIN32(res);
1040     }
1041     else
1042         hr = E_FAIL;
1043
1044     RegCloseKey(clsidkey);
1045
1046     return hr;
1047 }
1048
1049 typedef struct {
1050     IEnumUnknown IEnumUnknown_iface;
1051     LONG ref;
1052     struct list objects;
1053     struct list *cursor;
1054     CRITICAL_SECTION lock; /* Must be held when reading or writing cursor */
1055 } ComponentEnum;
1056
1057 static inline ComponentEnum *impl_from_IEnumUnknown(IEnumUnknown *iface)
1058 {
1059     return CONTAINING_RECORD(iface, ComponentEnum, IEnumUnknown_iface);
1060 }
1061
1062 typedef struct {
1063     struct list entry;
1064     IUnknown *unk;
1065 } ComponentEnumItem;
1066
1067 static const IEnumUnknownVtbl ComponentEnumVtbl;
1068
1069 static HRESULT WINAPI ComponentEnum_QueryInterface(IEnumUnknown *iface, REFIID iid,
1070     void **ppv)
1071 {
1072     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1073     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1074
1075     if (!ppv) return E_INVALIDARG;
1076
1077     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IEnumUnknown, iid))
1078     {
1079         *ppv = This;
1080     }
1081     else
1082     {
1083         *ppv = NULL;
1084         return E_NOINTERFACE;
1085     }
1086
1087     IUnknown_AddRef((IUnknown*)*ppv);
1088     return S_OK;
1089 }
1090
1091 static ULONG WINAPI ComponentEnum_AddRef(IEnumUnknown *iface)
1092 {
1093     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1094     ULONG ref = InterlockedIncrement(&This->ref);
1095
1096     TRACE("(%p) refcount=%u\n", iface, ref);
1097
1098     return ref;
1099 }
1100
1101 static ULONG WINAPI ComponentEnum_Release(IEnumUnknown *iface)
1102 {
1103     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1104     ULONG ref = InterlockedDecrement(&This->ref);
1105     ComponentEnumItem *cursor, *cursor2;
1106
1107     TRACE("(%p) refcount=%u\n", iface, ref);
1108
1109     if (ref == 0)
1110     {
1111         LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &This->objects, ComponentEnumItem, entry)
1112         {
1113             IUnknown_Release(cursor->unk);
1114             list_remove(&cursor->entry);
1115             HeapFree(GetProcessHeap(), 0, cursor);
1116         }
1117         This->lock.DebugInfo->Spare[0] = 0;
1118         DeleteCriticalSection(&This->lock);
1119         HeapFree(GetProcessHeap(), 0, This);
1120     }
1121
1122     return ref;
1123 }
1124
1125 static HRESULT WINAPI ComponentEnum_Next(IEnumUnknown *iface, ULONG celt,
1126     IUnknown **rgelt, ULONG *pceltFetched)
1127 {
1128     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1129     int num_fetched=0;
1130     ComponentEnumItem *item;
1131     HRESULT hr=S_OK;
1132
1133     TRACE("(%p,%u,%p,%p)\n", iface, celt, rgelt, pceltFetched);
1134
1135     EnterCriticalSection(&This->lock);
1136     while (num_fetched<celt)
1137     {
1138         if (!This->cursor)
1139         {
1140             hr = S_FALSE;
1141             break;
1142         }
1143         item = LIST_ENTRY(This->cursor, ComponentEnumItem, entry);
1144         IUnknown_AddRef(item->unk);
1145         rgelt[num_fetched] = item->unk;
1146         num_fetched++;
1147         This->cursor = list_next(&This->objects, This->cursor);
1148     }
1149     LeaveCriticalSection(&This->lock);
1150     if (pceltFetched)
1151         *pceltFetched = num_fetched;
1152     return hr;
1153 }
1154
1155 static HRESULT WINAPI ComponentEnum_Skip(IEnumUnknown *iface, ULONG celt)
1156 {
1157     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1158     int i;
1159     HRESULT hr=S_OK;
1160
1161     TRACE("(%p,%u)\n", iface, celt);
1162
1163     EnterCriticalSection(&This->lock);
1164     for (i=0; i<celt; i++)
1165     {
1166         if (!This->cursor)
1167         {
1168             hr = S_FALSE;
1169             break;
1170         }
1171         This->cursor = list_next(&This->objects, This->cursor);
1172     }
1173     LeaveCriticalSection(&This->lock);
1174     return hr;
1175 }
1176
1177 static HRESULT WINAPI ComponentEnum_Reset(IEnumUnknown *iface)
1178 {
1179     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1180
1181     TRACE("(%p)\n", iface);
1182
1183     EnterCriticalSection(&This->lock);
1184     This->cursor = list_head(&This->objects);
1185     LeaveCriticalSection(&This->lock);
1186     return S_OK;
1187 }
1188
1189 static HRESULT WINAPI ComponentEnum_Clone(IEnumUnknown *iface, IEnumUnknown **ppenum)
1190 {
1191     ComponentEnum *This = impl_from_IEnumUnknown(iface);
1192     ComponentEnum *new_enum;
1193     ComponentEnumItem *old_item, *new_item;
1194     HRESULT ret=S_OK;
1195     struct list *old_cursor;
1196
1197     new_enum = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnum));
1198     if (!new_enum)
1199     {
1200         *ppenum = NULL;
1201         return E_OUTOFMEMORY;
1202     }
1203
1204     new_enum->IEnumUnknown_iface.lpVtbl = &ComponentEnumVtbl;
1205     new_enum->ref = 1;
1206     new_enum->cursor = NULL;
1207     list_init(&new_enum->objects);
1208     InitializeCriticalSection(&new_enum->lock);
1209     new_enum->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ComponentEnum.lock");
1210
1211     EnterCriticalSection(&This->lock);
1212     old_cursor = This->cursor;
1213     LeaveCriticalSection(&This->lock);
1214
1215     LIST_FOR_EACH_ENTRY(old_item, &This->objects, ComponentEnumItem, entry)
1216     {
1217         new_item = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnumItem));
1218         if (!new_item)
1219         {
1220             ret = E_OUTOFMEMORY;
1221             break;
1222         }
1223         new_item->unk = old_item->unk;
1224         list_add_tail(&new_enum->objects, &new_item->entry);
1225         IUnknown_AddRef(new_item->unk);
1226         if (&old_item->entry == old_cursor) new_enum->cursor = &new_item->entry;
1227     }
1228
1229     if (FAILED(ret))
1230     {
1231         IUnknown_Release((IUnknown*)new_enum);
1232         *ppenum = NULL;
1233     }
1234     else
1235         *ppenum = (IEnumUnknown*)new_enum;
1236
1237     return ret;
1238 }
1239
1240 static const IEnumUnknownVtbl ComponentEnumVtbl = {
1241     ComponentEnum_QueryInterface,
1242     ComponentEnum_AddRef,
1243     ComponentEnum_Release,
1244     ComponentEnum_Next,
1245     ComponentEnum_Skip,
1246     ComponentEnum_Reset,
1247     ComponentEnum_Clone
1248 };
1249
1250 HRESULT CreateComponentEnumerator(DWORD componentTypes, DWORD options, IEnumUnknown **ppIEnumUnknown)
1251 {
1252     ComponentEnum *This;
1253     ComponentEnumItem *item;
1254     const struct category *category;
1255     HKEY clsidkey, catidkey, instancekey;
1256     WCHAR guidstring[39];
1257     LONG res;
1258     int i;
1259     HRESULT hr=S_OK;
1260     CLSID clsid;
1261
1262     if (options) FIXME("ignoring flags %x\n", options);
1263
1264     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, KEY_READ, &clsidkey);
1265     if (res != ERROR_SUCCESS)
1266         return HRESULT_FROM_WIN32(res);
1267
1268     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnum));
1269     if (!This)
1270     {
1271         RegCloseKey(clsidkey);
1272         return E_OUTOFMEMORY;
1273     }
1274
1275     This->IEnumUnknown_iface.lpVtbl = &ComponentEnumVtbl;
1276     This->ref = 1;
1277     list_init(&This->objects);
1278     InitializeCriticalSection(&This->lock);
1279     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ComponentEnum.lock");
1280
1281     for (category=categories; category->type && hr == S_OK; category++)
1282     {
1283         if ((category->type & componentTypes) == 0) continue;
1284         StringFromGUID2(category->catid, guidstring, 39);
1285         res = RegOpenKeyExW(clsidkey, guidstring, 0, KEY_READ, &catidkey);
1286         if (res == ERROR_SUCCESS)
1287         {
1288             res = RegOpenKeyExW(catidkey, instance_keyname, 0, KEY_READ, &instancekey);
1289             if (res == ERROR_SUCCESS)
1290             {
1291                 i=0;
1292                 for (;;i++)
1293                 {
1294                     DWORD guidstring_size = 39;
1295                     res = RegEnumKeyExW(instancekey, i, guidstring, &guidstring_size, NULL, NULL, NULL, NULL);
1296                     if (res != ERROR_SUCCESS) break;
1297
1298                     item = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentEnumItem));
1299                     if (!item) { hr = E_OUTOFMEMORY; break; }
1300
1301                     hr = CLSIDFromString(guidstring, &clsid);
1302                     if (SUCCEEDED(hr))
1303                     {
1304                         hr = CreateComponentInfo(&clsid, (IWICComponentInfo**)&item->unk);
1305                         if (SUCCEEDED(hr))
1306                             list_add_tail(&This->objects, &item->entry);
1307                     }
1308
1309                     if (FAILED(hr))
1310                     {
1311                         HeapFree(GetProcessHeap(), 0, item);
1312                         hr = S_OK;
1313                     }
1314                 }
1315                 RegCloseKey(instancekey);
1316             }
1317             RegCloseKey(catidkey);
1318         }
1319         if (res != ERROR_SUCCESS && res != ERROR_NO_MORE_ITEMS)
1320             hr = HRESULT_FROM_WIN32(res);
1321     }
1322     RegCloseKey(clsidkey);
1323
1324     if (SUCCEEDED(hr))
1325     {
1326         IEnumUnknown_Reset((IEnumUnknown*)This);
1327         *ppIEnumUnknown = (IEnumUnknown*)This;
1328     }
1329     else
1330     {
1331         *ppIEnumUnknown = NULL;
1332         IUnknown_Release((IUnknown*)This);
1333     }
1334
1335     return hr;
1336 }
1337
1338 HRESULT WINAPI WICConvertBitmapSource(REFWICPixelFormatGUID dstFormat, IWICBitmapSource *pISrc, IWICBitmapSource **ppIDst)
1339 {
1340     HRESULT res;
1341     IEnumUnknown *enumconverters;
1342     IUnknown *unkconverterinfo;
1343     IWICFormatConverterInfo *converterinfo=NULL;
1344     IWICFormatConverter *converter=NULL;
1345     GUID srcFormat;
1346     WCHAR srcformatstr[39], dstformatstr[39];
1347     BOOL canconvert;
1348     ULONG num_fetched;
1349
1350     res = IWICBitmapSource_GetPixelFormat(pISrc, &srcFormat);
1351     if (FAILED(res)) return res;
1352
1353     if (IsEqualGUID(&srcFormat, dstFormat))
1354     {
1355         IWICBitmapSource_AddRef(pISrc);
1356         *ppIDst = pISrc;
1357         return S_OK;
1358     }
1359
1360     StringFromGUID2(&srcFormat, srcformatstr, 39);
1361     StringFromGUID2(dstFormat, dstformatstr, 39);
1362
1363     res = CreateComponentEnumerator(WICPixelFormatConverter, 0, &enumconverters);
1364     if (FAILED(res)) return res;
1365
1366     while (!converter)
1367     {
1368         res = IEnumUnknown_Next(enumconverters, 1, &unkconverterinfo, &num_fetched);
1369
1370         if (res == S_OK)
1371         {
1372             res = IUnknown_QueryInterface(unkconverterinfo, &IID_IWICFormatConverterInfo, (void**)&converterinfo);
1373
1374             if (SUCCEEDED(res))
1375             {
1376                 canconvert = ConverterSupportsFormat(converterinfo, srcformatstr);
1377
1378                 if (canconvert)
1379                     canconvert = ConverterSupportsFormat(converterinfo, dstformatstr);
1380
1381                 if (canconvert)
1382                 {
1383                     res = IWICFormatConverterInfo_CreateInstance(converterinfo, &converter);
1384
1385                     if (SUCCEEDED(res))
1386                         res = IWICFormatConverter_CanConvert(converter, &srcFormat, dstFormat, &canconvert);
1387
1388                     if (SUCCEEDED(res) && canconvert)
1389                         res = IWICFormatConverter_Initialize(converter, pISrc, dstFormat, WICBitmapDitherTypeNone,
1390                             NULL, 0.0, WICBitmapPaletteTypeCustom);
1391
1392                     if (FAILED(res) || !canconvert)
1393                     {
1394                         if (converter)
1395                         {
1396                             IWICFormatConverter_Release(converter);
1397                             converter = NULL;
1398                         }
1399                         res = S_OK;
1400                     }
1401                 }
1402
1403                 IWICFormatConverterInfo_Release(converterinfo);
1404             }
1405
1406             IUnknown_Release(unkconverterinfo);
1407         }
1408         else
1409             break;
1410     }
1411
1412     IEnumUnknown_Release(enumconverters);
1413
1414     if (converter)
1415     {
1416         *ppIDst = (IWICBitmapSource*)converter;
1417         return S_OK;
1418     }
1419     else
1420     {
1421         FIXME("cannot convert %s to %s\n", debugstr_guid(&srcFormat), debugstr_guid(dstFormat));
1422         *ppIDst = NULL;
1423         return WINCODEC_ERR_COMPONENTNOTFOUND;
1424     }
1425 }