dlls/windowscodecs/regsvr.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 #define COBJMACROS
  20 #include <stdarg.h>
  21 #include <string.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "winreg.h"
  28 #include "winerror.h"
  29
  30 #include "objbase.h"
  31 #include "ocidl.h"
  32
  33 #include "wine/debug.h"
  34 #include "wine/unicode.h"
  35
  36 #include "wincodecs_private.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  39
  40 /***********************************************************************
  41  *              interface for self-registering
  42  */
  43 struct decoder_pattern
  44 {
  45     DWORD length;    /* 0 for end of list */
  46     DWORD position;
  47     const BYTE *pattern;
  48     const BYTE *mask;
  49     DWORD endofstream;
  50 };
  51
  52 struct regsvr_decoder
  53 {
  54     CLSID const *clsid;         /* NULL for end of list */
  55     LPCSTR author;
  56     LPCSTR friendlyname;
  57     LPCSTR version;
  58     GUID const *vendor;
  59     GUID const *container_format;
  60     LPCSTR mimetypes;
  61     LPCSTR extensions;
  62     GUID const * const *formats;
  63     const struct decoder_pattern *patterns;
  64 };
  65
  66 static HRESULT register_decoders(struct regsvr_decoder const *list);
  67 static HRESULT unregister_decoders(struct regsvr_decoder const *list);
  68
  69 struct regsvr_encoder
  70 {
  71     CLSID const *clsid;         /* NULL for end of list */
  72     LPCSTR author;
  73     LPCSTR friendlyname;
  74     LPCSTR version;
  75     GUID const *vendor;
  76     GUID const *container_format;
  77     LPCSTR mimetypes;
  78     LPCSTR extensions;
  79     GUID const * const *formats;
  80 };
  81
  82 static HRESULT register_encoders(struct regsvr_encoder const *list);
  83 static HRESULT unregister_encoders(struct regsvr_encoder const *list);
  84
  85 struct regsvr_converter
  86 {
  87     CLSID const *clsid;         /* NULL for end of list */
  88     LPCSTR author;
  89     LPCSTR friendlyname;
  90     LPCSTR version;
  91     GUID const *vendor;
  92     GUID const * const *formats;
  93 };
  94
  95 static HRESULT register_converters(struct regsvr_converter const *list);
  96 static HRESULT unregister_converters(struct regsvr_converter const *list);
  97
  98 struct metadata_pattern
  99 {
 100     DWORD position;
 101     DWORD length;
 102     const BYTE *pattern;
 103     const BYTE *mask;
 104     DWORD data_offset;
 105 };
 106
 107 struct reader_containers
 108 {
 109     GUID const *format;
 110     const struct metadata_pattern *patterns;
 111 };
 112
 113 struct regsvr_metadatareader
 114 {
 115     CLSID const *clsid;         /* NULL for end of list */
 116     LPCSTR author;
 117     LPCSTR friendlyname;
 118     LPCSTR version;
 119     LPCSTR specversion;
 120     GUID const *vendor;
 121     GUID const *metadata_format;
 122     DWORD requires_fullstream;
 123     DWORD supports_padding;
 124     DWORD requires_fixedsize;
 125     const struct reader_containers *containers;
 126 };
 127
 128 static HRESULT register_metadatareaders(struct regsvr_metadatareader const *list);
 129 static HRESULT unregister_metadatareaders(struct regsvr_metadatareader const *list);
 130
 131 struct regsvr_pixelformat
 132 {
 133     CLSID const *clsid;         /* NULL for end of list */
 134     LPCSTR author;
 135     LPCSTR friendlyname;
 136     LPCSTR version;
 137     GUID const *vendor;
 138     UINT bitsperpixel;
 139     UINT channelcount;
 140     BYTE const * const *channelmasks;
 141     WICPixelFormatNumericRepresentation numericrepresentation;
 142     UINT supportsalpha;
 143 };
 144
 145 static HRESULT register_pixelformats(struct regsvr_pixelformat const *list);
 146 static HRESULT unregister_pixelformats(struct regsvr_pixelformat const *list);
 147
 148 /***********************************************************************
 149  *              static string constants
 150  */
 151 static const WCHAR clsid_keyname[] = {
 152     'C', 'L', 'S', 'I', 'D', 0 };
 153 static const char author_valuename[] = "Author";
 154 static const char friendlyname_valuename[] = "FriendlyName";
 155 static const WCHAR vendor_valuename[] = {'V','e','n','d','o','r',0};
 156 static const WCHAR containerformat_valuename[] = {'C','o','n','t','a','i','n','e','r','F','o','r','m','a','t',0};
 157 static const char version_valuename[] = "Version";
 158 static const char mimetypes_valuename[] = "MimeTypes";
 159 static const char extensions_valuename[] = "FileExtensions";
 160 static const WCHAR formats_keyname[] = {'F','o','r','m','a','t','s',0};
 161 static const WCHAR patterns_keyname[] = {'P','a','t','t','e','r','n','s',0};
 162 static const WCHAR instance_keyname[] = {'I','n','s','t','a','n','c','e',0};
 163 static const WCHAR clsid_valuename[] = {'C','L','S','I','D',0};
 164 static const char length_valuename[] = "Length";
 165 static const char position_valuename[] = "Position";
 166 static const char pattern_valuename[] = "Pattern";
 167 static const char mask_valuename[] = "Mask";
 168 static const char endofstream_valuename[] = "EndOfStream";
 169 static const WCHAR pixelformats_keyname[] = {'P','i','x','e','l','F','o','r','m','a','t','s',0};
 170 static const WCHAR metadataformat_valuename[] = {'M','e','t','a','d','a','t','a','F','o','r','m','a','t',0};
 171 static const char specversion_valuename[] = "SpecVersion";
 172 static const char requiresfullstream_valuename[] = "RequiresFullStream";
 173 static const char supportspadding_valuename[] = "SupportsPadding";
 174 static const char requiresfixedsize_valuename[] = "FixedSize";
 175 static const WCHAR containers_keyname[] = {'C','o','n','t','a','i','n','e','r','s',0};
 176 static const char dataoffset_valuename[] = "DataOffset";
 177 static const char bitsperpixel_valuename[] = "BitLength";
 178 static const char channelcount_valuename[] = "ChannelCount";
 179 static const char numericrepresentation_valuename[] = "NumericRepresentation";
 180 static const char supportstransparency_valuename[] = "SupportsTransparency";
 181 static const WCHAR channelmasks_keyname[] = {'C','h','a','n','n','e','l','M','a','s','k','s',0};
 182
 183 /***********************************************************************
 184  *              register_decoders
 185  */
 186 static HRESULT register_decoders(struct regsvr_decoder const *list)
 187 {
 188     LONG res = ERROR_SUCCESS;
 189     HKEY coclass_key;
 190     WCHAR buf[39];
 191     HKEY decoders_key;
 192     HKEY instance_key;
 193
 194     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 195                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 196     if (res == ERROR_SUCCESS)  {
 197         StringFromGUID2(&CATID_WICBitmapDecoders, buf, 39);
 198         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 199                               KEY_READ | KEY_WRITE, NULL, &decoders_key, NULL);
 200         if (res == ERROR_SUCCESS)
 201         {
 202             res = RegCreateKeyExW(decoders_key, instance_keyname, 0, NULL, 0,
 203                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 204             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 205         }
 206         if (res != ERROR_SUCCESS)
 207             RegCloseKey(coclass_key);
 208     }
 209     if (res != ERROR_SUCCESS) goto error_return;
 210
 211     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 212         HKEY clsid_key;
 213         HKEY instance_clsid_key;
 214
 215         StringFromGUID2(list->clsid, buf, 39);
 216         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 217                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 218         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 219
 220         StringFromGUID2(list->clsid, buf, 39);
 221         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
 222                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
 223         if (res == ERROR_SUCCESS) {
 224             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
 225                                  (const BYTE*)buf, 78);
 226             RegCloseKey(instance_clsid_key);
 227         }
 228         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 229
 230         if (list->author) {
 231             res = RegSetValueExA(clsid_key, author_valuename, 0, REG_SZ,
 232                                  (const BYTE*)list->author,
 233                                  strlen(list->author) + 1);
 234             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 235         }
 236
 237         if (list->friendlyname) {
 238             res = RegSetValueExA(clsid_key, friendlyname_valuename, 0, REG_SZ,
 239                                  (const BYTE*)list->friendlyname,
 240                                  strlen(list->friendlyname) + 1);
 241             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 242         }
 243
 244         if (list->vendor) {
 245             StringFromGUID2(list->vendor, buf, 39);
 246             res = RegSetValueExW(clsid_key, vendor_valuename, 0, REG_SZ,
 247                                  (const BYTE*)buf, 78);
 248             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 249         }
 250
 251         if (list->container_format) {
 252             StringFromGUID2(list->container_format, buf, 39);
 253             res = RegSetValueExW(clsid_key, containerformat_valuename, 0, REG_SZ,
 254                                  (const BYTE*)buf, 78);
 255             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 256         }
 257
 258         if (list->version) {
 259             res = RegSetValueExA(clsid_key, version_valuename, 0, REG_SZ,
 260                                  (const BYTE*)list->version,
 261                                  strlen(list->version) + 1);
 262             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 263         }
 264
 265         if (list->mimetypes) {
 266             res = RegSetValueExA(clsid_key, mimetypes_valuename, 0, REG_SZ,
 267                                  (const BYTE*)list->mimetypes,
 268                                  strlen(list->mimetypes) + 1);
 269             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 270         }
 271
 272         if (list->extensions) {
 273             res = RegSetValueExA(clsid_key, extensions_valuename, 0, REG_SZ,
 274                                  (const BYTE*)list->extensions,
 275                                  strlen(list->extensions) + 1);
 276             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 277         }
 278
 279         if (list->formats) {
 280             HKEY formats_key;
 281             GUID const * const *format;
 282
 283             res = RegCreateKeyExW(clsid_key, formats_keyname, 0, NULL, 0,
 284                                   KEY_READ | KEY_WRITE, NULL, &formats_key, NULL);
 285             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 286             for (format=list->formats; *format; ++format)
 287             {
 288                 HKEY format_key;
 289                 StringFromGUID2(*format, buf, 39);
 290                 res = RegCreateKeyExW(formats_key, buf, 0, NULL, 0,
 291                                       KEY_READ | KEY_WRITE, NULL, &format_key, NULL);
 292                 if (res != ERROR_SUCCESS) break;
 293                 RegCloseKey(format_key);
 294             }
 295             RegCloseKey(formats_key);
 296             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 297         }
 298
 299         if (list->patterns) {
 300             HKEY patterns_key;
 301             int i;
 302
 303             res = RegCreateKeyExW(clsid_key, patterns_keyname, 0, NULL, 0,
 304                                   KEY_READ | KEY_WRITE, NULL, &patterns_key, NULL);
 305             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 306             for (i=0; list->patterns[i].length; i++)
 307             {
 308                 HKEY pattern_key;
 309                 static const WCHAR int_format[] = {'%','i',0};
 310                 snprintfW(buf, 39, int_format, i);
 311                 res = RegCreateKeyExW(patterns_key, buf, 0, NULL, 0,
 312                                       KEY_READ | KEY_WRITE, NULL, &pattern_key, NULL);
 313                 if (res != ERROR_SUCCESS) break;
 314                 res = RegSetValueExA(pattern_key, length_valuename, 0, REG_DWORD,
 315                                      (const BYTE*)&list->patterns[i].length, 4);
 316                 if (res == ERROR_SUCCESS)
 317                     res = RegSetValueExA(pattern_key, position_valuename, 0, REG_DWORD,
 318                                          (const BYTE*)&list->patterns[i].position, 4);
 319                 if (res == ERROR_SUCCESS)
 320                     res = RegSetValueExA(pattern_key, pattern_valuename, 0, REG_BINARY,
 321                                          list->patterns[i].pattern,
 322                                          list->patterns[i].length);
 323                 if (res == ERROR_SUCCESS)
 324                     res = RegSetValueExA(pattern_key, mask_valuename, 0, REG_BINARY,
 325                                          list->patterns[i].mask,
 326                                          list->patterns[i].length);
 327                 if (res == ERROR_SUCCESS)
 328                     res = RegSetValueExA(pattern_key, endofstream_valuename, 0, REG_DWORD,
 329                                          (const BYTE*)&list->patterns[i].endofstream, 4);
 330                 RegCloseKey(pattern_key);
 331             }
 332             RegCloseKey(patterns_key);
 333             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 334         }
 335
 336     error_close_clsid_key:
 337         RegCloseKey(clsid_key);
 338     }
 339
 340 error_close_coclass_key:
 341     RegCloseKey(instance_key);
 342     RegCloseKey(decoders_key);
 343     RegCloseKey(coclass_key);
 344 error_return:
 345     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 346 }
 347
 348 /***********************************************************************
 349  *              unregister_decoders
 350  */
 351 static HRESULT unregister_decoders(struct regsvr_decoder const *list)
 352 {
 353     LONG res = ERROR_SUCCESS;
 354     HKEY coclass_key;
 355     WCHAR buf[39];
 356     HKEY decoders_key;
 357     HKEY instance_key;
 358
 359     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 360                         KEY_READ | KEY_WRITE, &coclass_key);
 361     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 362
 363     if (res == ERROR_SUCCESS)  {
 364         StringFromGUID2(&CATID_WICBitmapDecoders, buf, 39);
 365         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 366                               KEY_READ | KEY_WRITE, NULL, &decoders_key, NULL);
 367         if (res == ERROR_SUCCESS)
 368         {
 369             res = RegCreateKeyExW(decoders_key, instance_keyname, 0, NULL, 0,
 370                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 371             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 372         }
 373         if (res != ERROR_SUCCESS)
 374             RegCloseKey(coclass_key);
 375     }
 376     if (res != ERROR_SUCCESS) goto error_return;
 377
 378     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 379         StringFromGUID2(list->clsid, buf, 39);
 380
 381         res = RegDeleteTreeW(coclass_key, buf);
 382         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 383         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 384
 385         res = RegDeleteTreeW(instance_key, buf);
 386         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 387         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 388     }
 389
 390 error_close_coclass_key:
 391     RegCloseKey(instance_key);
 392     RegCloseKey(decoders_key);
 393     RegCloseKey(coclass_key);
 394 error_return:
 395     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 396 }
 397
 398 /***********************************************************************
 399  *              register_encoders
 400  */
 401 static HRESULT register_encoders(struct regsvr_encoder const *list)
 402 {
 403     LONG res = ERROR_SUCCESS;
 404     HKEY coclass_key;
 405     WCHAR buf[39];
 406     HKEY encoders_key;
 407     HKEY instance_key;
 408
 409     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 410                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 411     if (res == ERROR_SUCCESS)  {
 412         StringFromGUID2(&CATID_WICBitmapEncoders, buf, 39);
 413         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 414                               KEY_READ | KEY_WRITE, NULL, &encoders_key, NULL);
 415         if (res == ERROR_SUCCESS)
 416         {
 417             res = RegCreateKeyExW(encoders_key, instance_keyname, 0, NULL, 0,
 418                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 419             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 420         }
 421         if (res != ERROR_SUCCESS)
 422             RegCloseKey(coclass_key);
 423     }
 424     if (res != ERROR_SUCCESS) goto error_return;
 425
 426     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 427         HKEY clsid_key;
 428         HKEY instance_clsid_key;
 429
 430         StringFromGUID2(list->clsid, buf, 39);
 431         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 432                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 433         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 434
 435         StringFromGUID2(list->clsid, buf, 39);
 436         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
 437                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
 438         if (res == ERROR_SUCCESS) {
 439             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
 440                                  (const BYTE*)buf, 78);
 441             RegCloseKey(instance_clsid_key);
 442         }
 443         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 444
 445         if (list->author) {
 446             res = RegSetValueExA(clsid_key, author_valuename, 0, REG_SZ,
 447                                  (const BYTE*)list->author,
 448                                  strlen(list->author) + 1);
 449             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 450         }
 451
 452         if (list->friendlyname) {
 453             res = RegSetValueExA(clsid_key, friendlyname_valuename, 0, REG_SZ,
 454                                  (const BYTE*)list->friendlyname,
 455                                  strlen(list->friendlyname) + 1);
 456             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 457         }
 458
 459         if (list->vendor) {
 460             StringFromGUID2(list->vendor, buf, 39);
 461             res = RegSetValueExW(clsid_key, vendor_valuename, 0, REG_SZ,
 462                                  (const BYTE*)buf, 78);
 463             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 464         }
 465
 466         if (list->container_format) {
 467             StringFromGUID2(list->container_format, buf, 39);
 468             res = RegSetValueExW(clsid_key, containerformat_valuename, 0, REG_SZ,
 469                                  (const BYTE*)buf, 78);
 470             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 471         }
 472
 473         if (list->version) {
 474             res = RegSetValueExA(clsid_key, version_valuename, 0, REG_SZ,
 475                                  (const BYTE*)list->version,
 476                                  strlen(list->version) + 1);
 477             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 478         }
 479
 480         if (list->mimetypes) {
 481             res = RegSetValueExA(clsid_key, mimetypes_valuename, 0, REG_SZ,
 482                                  (const BYTE*)list->mimetypes,
 483                                  strlen(list->mimetypes) + 1);
 484             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 485         }
 486
 487         if (list->extensions) {
 488             res = RegSetValueExA(clsid_key, extensions_valuename, 0, REG_SZ,
 489                                  (const BYTE*)list->extensions,
 490                                  strlen(list->extensions) + 1);
 491             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 492         }
 493
 494         if (list->formats) {
 495             HKEY formats_key;
 496             GUID const * const *format;
 497
 498             res = RegCreateKeyExW(clsid_key, formats_keyname, 0, NULL, 0,
 499                                   KEY_READ | KEY_WRITE, NULL, &formats_key, NULL);
 500             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 501             for (format=list->formats; *format; ++format)
 502             {
 503                 HKEY format_key;
 504                 StringFromGUID2(*format, buf, 39);
 505                 res = RegCreateKeyExW(formats_key, buf, 0, NULL, 0,
 506                                       KEY_READ | KEY_WRITE, NULL, &format_key, NULL);
 507                 if (res != ERROR_SUCCESS) break;
 508                 RegCloseKey(format_key);
 509             }
 510             RegCloseKey(formats_key);
 511             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 512         }
 513
 514     error_close_clsid_key:
 515         RegCloseKey(clsid_key);
 516     }
 517
 518 error_close_coclass_key:
 519     RegCloseKey(instance_key);
 520     RegCloseKey(encoders_key);
 521     RegCloseKey(coclass_key);
 522 error_return:
 523     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 524 }
 525
 526 /***********************************************************************
 527  *              unregister_encoders
 528  */
 529 static HRESULT unregister_encoders(struct regsvr_encoder const *list)
 530 {
 531     LONG res = ERROR_SUCCESS;
 532     HKEY coclass_key;
 533     WCHAR buf[39];
 534     HKEY encoders_key;
 535     HKEY instance_key;
 536
 537     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 538                         KEY_READ | KEY_WRITE, &coclass_key);
 539     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 540
 541     if (res == ERROR_SUCCESS)  {
 542         StringFromGUID2(&CATID_WICBitmapEncoders, buf, 39);
 543         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 544                               KEY_READ | KEY_WRITE, NULL, &encoders_key, NULL);
 545         if (res == ERROR_SUCCESS)
 546         {
 547             res = RegCreateKeyExW(encoders_key, instance_keyname, 0, NULL, 0,
 548                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 549             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 550         }
 551         if (res != ERROR_SUCCESS)
 552             RegCloseKey(coclass_key);
 553     }
 554     if (res != ERROR_SUCCESS) goto error_return;
 555
 556     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 557         StringFromGUID2(list->clsid, buf, 39);
 558
 559         res = RegDeleteTreeW(coclass_key, buf);
 560         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 561         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 562
 563         res = RegDeleteTreeW(instance_key, buf);
 564         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 565         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 566     }
 567
 568 error_close_coclass_key:
 569     RegCloseKey(instance_key);
 570     RegCloseKey(encoders_key);
 571     RegCloseKey(coclass_key);
 572 error_return:
 573     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 574 }
 575
 576 /***********************************************************************
 577  *              register_converters
 578  */
 579 static HRESULT register_converters(struct regsvr_converter const *list)
 580 {
 581     LONG res = ERROR_SUCCESS;
 582     HKEY coclass_key;
 583     WCHAR buf[39];
 584     HKEY converters_key;
 585     HKEY instance_key;
 586
 587     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 588                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 589     if (res == ERROR_SUCCESS)  {
 590         StringFromGUID2(&CATID_WICFormatConverters, buf, 39);
 591         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 592                               KEY_READ | KEY_WRITE, NULL, &converters_key, NULL);
 593         if (res == ERROR_SUCCESS)
 594         {
 595             res = RegCreateKeyExW(converters_key, instance_keyname, 0, NULL, 0,
 596                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 597             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 598         }
 599         if (res != ERROR_SUCCESS)
 600             RegCloseKey(coclass_key);
 601     }
 602     if (res != ERROR_SUCCESS) goto error_return;
 603
 604     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 605         HKEY clsid_key;
 606         HKEY instance_clsid_key;
 607
 608         StringFromGUID2(list->clsid, buf, 39);
 609         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 610                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 611         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 612
 613         StringFromGUID2(list->clsid, buf, 39);
 614         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
 615                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
 616         if (res == ERROR_SUCCESS) {
 617             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
 618                                  (const BYTE*)buf, 78);
 619             RegCloseKey(instance_clsid_key);
 620         }
 621         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 622
 623         if (list->author) {
 624             res = RegSetValueExA(clsid_key, author_valuename, 0, REG_SZ,
 625                                  (const BYTE*)list->author,
 626                                  strlen(list->author) + 1);
 627             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 628         }
 629
 630         if (list->friendlyname) {
 631             res = RegSetValueExA(clsid_key, friendlyname_valuename, 0, REG_SZ,
 632                                  (const BYTE*)list->friendlyname,
 633                                  strlen(list->friendlyname) + 1);
 634             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 635         }
 636
 637         if (list->vendor) {
 638             StringFromGUID2(list->vendor, buf, 39);
 639             res = RegSetValueExW(clsid_key, vendor_valuename, 0, REG_SZ,
 640                                  (const BYTE*)buf, 78);
 641             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 642         }
 643
 644         if (list->version) {
 645             res = RegSetValueExA(clsid_key, version_valuename, 0, REG_SZ,
 646                                  (const BYTE*)list->version,
 647                                  strlen(list->version) + 1);
 648             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 649         }
 650
 651         if (list->formats) {
 652             HKEY formats_key;
 653             GUID const * const *format;
 654
 655             res = RegCreateKeyExW(clsid_key, pixelformats_keyname, 0, NULL, 0,
 656                                   KEY_READ | KEY_WRITE, NULL, &formats_key, NULL);
 657             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 658             for (format=list->formats; *format; ++format)
 659             {
 660                 HKEY format_key;
 661                 StringFromGUID2(*format, buf, 39);
 662                 res = RegCreateKeyExW(formats_key, buf, 0, NULL, 0,
 663                                       KEY_READ | KEY_WRITE, NULL, &format_key, NULL);
 664                 if (res != ERROR_SUCCESS) break;
 665                 RegCloseKey(format_key);
 666             }
 667             RegCloseKey(formats_key);
 668             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 669         }
 670
 671     error_close_clsid_key:
 672         RegCloseKey(clsid_key);
 673     }
 674
 675 error_close_coclass_key:
 676     RegCloseKey(instance_key);
 677     RegCloseKey(converters_key);
 678     RegCloseKey(coclass_key);
 679 error_return:
 680     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 681 }
 682
 683 /***********************************************************************
 684  *              unregister_converters
 685  */
 686 static HRESULT unregister_converters(struct regsvr_converter const *list)
 687 {
 688     LONG res = ERROR_SUCCESS;
 689     HKEY coclass_key;
 690     WCHAR buf[39];
 691     HKEY converters_key;
 692     HKEY instance_key;
 693
 694     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 695                         KEY_READ | KEY_WRITE, &coclass_key);
 696     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 697
 698     if (res == ERROR_SUCCESS)  {
 699         StringFromGUID2(&CATID_WICFormatConverters, buf, 39);
 700         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 701                               KEY_READ | KEY_WRITE, NULL, &converters_key, NULL);
 702         if (res == ERROR_SUCCESS)
 703         {
 704             res = RegCreateKeyExW(converters_key, instance_keyname, 0, NULL, 0,
 705                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 706             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 707         }
 708         if (res != ERROR_SUCCESS)
 709             RegCloseKey(coclass_key);
 710     }
 711     if (res != ERROR_SUCCESS) goto error_return;
 712
 713     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 714         StringFromGUID2(list->clsid, buf, 39);
 715
 716         res = RegDeleteTreeW(coclass_key, buf);
 717         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 718         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 719
 720         res = RegDeleteTreeW(instance_key, buf);
 721         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 722         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 723     }
 724
 725 error_close_coclass_key:
 726     RegCloseKey(instance_key);
 727     RegCloseKey(converters_key);
 728     RegCloseKey(coclass_key);
 729 error_return:
 730     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 731 }
 732
 733 /***********************************************************************
 734  *              register_metadatareaders
 735  */
 736 static HRESULT register_metadatareaders(struct regsvr_metadatareader const *list)
 737 {
 738     LONG res = ERROR_SUCCESS;
 739     HKEY coclass_key;
 740     WCHAR buf[39];
 741     HKEY readers_key;
 742     HKEY instance_key;
 743
 744     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 745                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 746     if (res == ERROR_SUCCESS)  {
 747         StringFromGUID2(&CATID_WICMetadataReader, buf, 39);
 748         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 749                               KEY_READ | KEY_WRITE, NULL, &readers_key, NULL);
 750         if (res == ERROR_SUCCESS)
 751         {
 752             res = RegCreateKeyExW(readers_key, instance_keyname, 0, NULL, 0,
 753                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 754             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 755         }
 756         if (res != ERROR_SUCCESS)
 757             RegCloseKey(coclass_key);
 758     }
 759     if (res != ERROR_SUCCESS) goto error_return;
 760
 761     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 762         HKEY clsid_key;
 763         HKEY instance_clsid_key;
 764
 765         StringFromGUID2(list->clsid, buf, 39);
 766         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 767                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 768         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 769
 770         StringFromGUID2(list->clsid, buf, 39);
 771         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
 772                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
 773         if (res == ERROR_SUCCESS) {
 774             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
 775                                  (const BYTE*)buf, 78);
 776             RegCloseKey(instance_clsid_key);
 777         }
 778         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 779
 780         if (list->author) {
 781             res = RegSetValueExA(clsid_key, author_valuename, 0, REG_SZ,
 782                                  (const BYTE*)list->author,
 783                                  strlen(list->author) + 1);
 784             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 785         }
 786
 787         if (list->friendlyname) {
 788             res = RegSetValueExA(clsid_key, friendlyname_valuename, 0, REG_SZ,
 789                                  (const BYTE*)list->friendlyname,
 790                                  strlen(list->friendlyname) + 1);
 791             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 792         }
 793
 794         if (list->vendor) {
 795             StringFromGUID2(list->vendor, buf, 39);
 796             res = RegSetValueExW(clsid_key, vendor_valuename, 0, REG_SZ,
 797                                  (const BYTE*)buf, 78);
 798             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 799         }
 800
 801         if (list->metadata_format) {
 802             StringFromGUID2(list->metadata_format, buf, 39);
 803             res = RegSetValueExW(clsid_key, metadataformat_valuename, 0, REG_SZ,
 804                                  (const BYTE*)buf, 78);
 805             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 806         }
 807
 808         if (list->version) {
 809             res = RegSetValueExA(clsid_key, version_valuename, 0, REG_SZ,
 810                                  (const BYTE*)list->version,
 811                                  strlen(list->version) + 1);
 812             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 813         }
 814
 815         if (list->specversion) {
 816             res = RegSetValueExA(clsid_key, specversion_valuename, 0, REG_SZ,
 817                                  (const BYTE*)list->version,
 818                                  strlen(list->version) + 1);
 819             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 820         }
 821
 822         res = RegSetValueExA(clsid_key, requiresfullstream_valuename, 0, REG_DWORD,
 823                              (const BYTE*)&list->requires_fullstream, 4);
 824         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 825
 826         res = RegSetValueExA(clsid_key, supportspadding_valuename, 0, REG_DWORD,
 827                              (const BYTE*)&list->supports_padding, 4);
 828         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 829
 830         if (list->requires_fixedsize) {
 831             res = RegSetValueExA(clsid_key, requiresfixedsize_valuename, 0, REG_DWORD,
 832                                  (const BYTE*)&list->requires_fixedsize, 4);
 833             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 834         }
 835
 836         if (list->containers) {
 837             HKEY containers_key;
 838             const struct reader_containers *container;
 839
 840             res = RegCreateKeyExW(clsid_key, containers_keyname, 0, NULL, 0,
 841                                   KEY_READ | KEY_WRITE, NULL, &containers_key, NULL);
 842             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 843             for (container=list->containers; container->format; ++container)
 844             {
 845                 HKEY format_key;
 846                 int i;
 847                 StringFromGUID2(container->format, buf, 39);
 848                 res = RegCreateKeyExW(containers_key, buf, 0, NULL, 0,
 849                                       KEY_READ | KEY_WRITE, NULL, &format_key, NULL);
 850                 if (res != ERROR_SUCCESS) break;
 851
 852                 for (i=0; container->patterns[i].length; i++)
 853                 {
 854                     HKEY pattern_key;
 855                     static const WCHAR int_format[] = {'%','i',0};
 856                     snprintfW(buf, 39, int_format, i);
 857                     res = RegCreateKeyExW(format_key, buf, 0, NULL, 0,
 858                                           KEY_READ | KEY_WRITE, NULL, &pattern_key, NULL);
 859                     if (res != ERROR_SUCCESS) break;
 860                     res = RegSetValueExA(pattern_key, position_valuename, 0, REG_DWORD,
 861                                          (const BYTE*)&container->patterns[i].position, 4);
 862                     if (res == ERROR_SUCCESS)
 863                         res = RegSetValueExA(pattern_key, pattern_valuename, 0, REG_BINARY,
 864                                              container->patterns[i].pattern,
 865                                              container->patterns[i].length);
 866                     if (res == ERROR_SUCCESS)
 867                         res = RegSetValueExA(pattern_key, mask_valuename, 0, REG_BINARY,
 868                                              container->patterns[i].mask,
 869                                              container->patterns[i].length);
 870                     if (res == ERROR_SUCCESS && container->patterns[i].data_offset)
 871                         res = RegSetValueExA(pattern_key, dataoffset_valuename, 0, REG_DWORD,
 872                                              (const BYTE*)&container->patterns[i].data_offset, 4);
 873                     RegCloseKey(pattern_key);
 874                 }
 875
 876                 RegCloseKey(format_key);
 877             }
 878             RegCloseKey(containers_key);
 879         }
 880
 881     error_close_clsid_key:
 882         RegCloseKey(clsid_key);
 883     }
 884
 885 error_close_coclass_key:
 886     RegCloseKey(instance_key);
 887     RegCloseKey(readers_key);
 888     RegCloseKey(coclass_key);
 889 error_return:
 890     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 891 }
 892
 893 /***********************************************************************
 894  *              unregister_metadatareaders
 895  */
 896 static HRESULT unregister_metadatareaders(struct regsvr_metadatareader const *list)
 897 {
 898     LONG res = ERROR_SUCCESS;
 899     HKEY coclass_key;
 900     WCHAR buf[39];
 901     HKEY readers_key;
 902     HKEY instance_key;
 903
 904     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
 905                         KEY_READ | KEY_WRITE, &coclass_key);
 906     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
 907
 908     if (res == ERROR_SUCCESS)  {
 909         StringFromGUID2(&CATID_WICMetadataReader, buf, 39);
 910         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 911                               KEY_READ | KEY_WRITE, NULL, &readers_key, NULL);
 912         if (res == ERROR_SUCCESS)
 913         {
 914             res = RegCreateKeyExW(readers_key, instance_keyname, 0, NULL, 0,
 915                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 916             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 917         }
 918         if (res != ERROR_SUCCESS)
 919             RegCloseKey(coclass_key);
 920     }
 921     if (res != ERROR_SUCCESS) goto error_return;
 922
 923     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 924         StringFromGUID2(list->clsid, buf, 39);
 925
 926         res = RegDeleteTreeW(coclass_key, buf);
 927         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 928         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 929
 930         res = RegDeleteTreeW(instance_key, buf);
 931         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
 932         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 933     }
 934
 935 error_close_coclass_key:
 936     RegCloseKey(instance_key);
 937     RegCloseKey(readers_key);
 938     RegCloseKey(coclass_key);
 939 error_return:
 940     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
 941 }
 942
 943 /***********************************************************************
 944  *                register_pixelformats
 945  */
 946 static HRESULT register_pixelformats(struct regsvr_pixelformat const *list)
 947 {
 948     LONG res = ERROR_SUCCESS;
 949     HKEY coclass_key;
 950     WCHAR buf[39];
 951     HKEY formats_key;
 952     HKEY instance_key;
 953
 954     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
 955                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
 956     if (res == ERROR_SUCCESS)  {
 957         StringFromGUID2(&CATID_WICPixelFormats, buf, 39);
 958         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 959                               KEY_READ | KEY_WRITE, NULL, &formats_key, NULL);
 960         if (res == ERROR_SUCCESS)
 961         {
 962             res = RegCreateKeyExW(formats_key, instance_keyname, 0, NULL, 0,
 963                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
 964             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 965         }
 966         if (res != ERROR_SUCCESS)
 967             RegCloseKey(coclass_key);
 968     }
 969     if (res != ERROR_SUCCESS) goto error_return;
 970
 971     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
 972         HKEY clsid_key;
 973         HKEY instance_clsid_key;
 974
 975         StringFromGUID2(list->clsid, buf, 39);
 976         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
 977                               KEY_READ | KEY_WRITE, NULL, &clsid_key, NULL);
 978         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
 979
 980         StringFromGUID2(list->clsid, buf, 39);
 981         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
 982                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
 983         if (res == ERROR_SUCCESS) {
 984             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
 985                                  (const BYTE*)buf, 78);
 986             RegCloseKey(instance_clsid_key);
 987         }
 988         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 989
 990         if (list->author) {
 991             res = RegSetValueExA(clsid_key, author_valuename, 0, REG_SZ,
 992                                  (const BYTE*)list->author,
 993                                  strlen(list->author) + 1);
 994             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
 995         }
 996
 997         if (list->friendlyname) {
 998             res = RegSetValueExA(clsid_key, friendlyname_valuename, 0, REG_SZ,
 999                                  (const BYTE*)list->friendlyname,
1000                                  strlen(list->friendlyname) + 1);
1001             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1002         }
1003
1004         if (list->vendor) {
1005             StringFromGUID2(list->vendor, buf, 39);
1006             res = RegSetValueExW(clsid_key, vendor_valuename, 0, REG_SZ,
1007                                  (const BYTE*)buf, 78);
1008             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1009         }
1010
1011         if (list->version) {
1012             res = RegSetValueExA(clsid_key, version_valuename, 0, REG_SZ,
1013                                  (const BYTE*)list->version,
1014                                  strlen(list->version) + 1);
1015             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1016         }
1017
1018         res = RegSetValueExA(clsid_key, bitsperpixel_valuename, 0, REG_DWORD,
1019                              (const BYTE*)&list->bitsperpixel, 4);
1020         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1021
1022         res = RegSetValueExA(clsid_key, channelcount_valuename, 0, REG_DWORD,
1023                              (const BYTE*)&list->channelcount, 4);
1024         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1025
1026         res = RegSetValueExA(clsid_key, numericrepresentation_valuename, 0, REG_DWORD,
1027                              (const BYTE*)&list->numericrepresentation, 4);
1028         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1029
1030         res = RegSetValueExA(clsid_key, supportstransparency_valuename, 0, REG_DWORD,
1031                              (const BYTE*)&list->supportsalpha, 4);
1032         if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1033
1034         if (list->channelmasks) {
1035             static const WCHAR valuename_format[] = {'%','d',0};
1036             HKEY masks_key;
1037             UINT i, mask_size;
1038             WCHAR mask_valuename[11];
1039
1040             mask_size = (list->bitsperpixel + 7)/8;
1041
1042             res = RegCreateKeyExW(clsid_key, channelmasks_keyname, 0, NULL, 0,
1043                                   KEY_READ | KEY_WRITE, NULL, &masks_key, NULL);
1044             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1045             for (i=0; i < list->channelcount; i++)
1046             {
1047                 sprintfW(mask_valuename, valuename_format, i);
1048                 res = RegSetValueExW(masks_key, mask_valuename, 0, REG_BINARY,
1049                                      list->channelmasks[i], mask_size);
1050                 if (res != ERROR_SUCCESS) break;
1051             }
1052             RegCloseKey(masks_key);
1053             if (res != ERROR_SUCCESS) goto error_close_clsid_key;
1054         }
1055
1056     error_close_clsid_key:
1057         RegCloseKey(clsid_key);
1058     }
1059
1060 error_close_coclass_key:
1061     RegCloseKey(instance_key);
1062     RegCloseKey(formats_key);
1063     RegCloseKey(coclass_key);
1064 error_return:
1065     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
1066 }
1067
1068 /***********************************************************************
1069  *                unregister_pixelformats
1070  */
1071 static HRESULT unregister_pixelformats(struct regsvr_pixelformat const *list)
1072 {
1073     LONG res = ERROR_SUCCESS;
1074     HKEY coclass_key;
1075     WCHAR buf[39];
1076     HKEY formats_key;
1077     HKEY instance_key;
1078
1079     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
1080                         KEY_READ | KEY_WRITE, &coclass_key);
1081     if (res == ERROR_FILE_NOT_FOUND) return S_OK;
1082
1083     if (res == ERROR_SUCCESS)  {
1084         StringFromGUID2(&CATID_WICPixelFormats, buf, 39);
1085         res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
1086                               KEY_READ | KEY_WRITE, NULL, &formats_key, NULL);
1087         if (res == ERROR_SUCCESS)
1088         {
1089             res = RegCreateKeyExW(formats_key, instance_keyname, 0, NULL, 0,
1090                               KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
1091             if (res != ERROR_SUCCESS) goto error_close_coclass_key;
1092         }
1093         if (res != ERROR_SUCCESS)
1094             RegCloseKey(coclass_key);
1095     }
1096     if (res != ERROR_SUCCESS) goto error_return;
1097
1098     for (; res == ERROR_SUCCESS && list->clsid; ++list) {
1099         StringFromGUID2(list->clsid, buf, 39);
1100
1101         res = RegDeleteTreeW(coclass_key, buf);
1102         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
1103         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
1104
1105         res = RegDeleteTreeW(instance_key, buf);
1106         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
1107         if (res != ERROR_SUCCESS) goto error_close_coclass_key;
1108     }
1109
1110 error_close_coclass_key:
1111     RegCloseKey(instance_key);
1112     RegCloseKey(formats_key);
1113     RegCloseKey(coclass_key);
1114 error_return:
1115     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
1116 }
1117
1118 /***********************************************************************
1119  *              decoder list
1120  */
1121 static const BYTE mask_all[] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
1122
1123 static const BYTE bmp_magic[] = {0x42,0x4d};
1124
1125 static GUID const * const bmp_formats[] = {
1126     &GUID_WICPixelFormat1bppIndexed,
1127     &GUID_WICPixelFormat2bppIndexed,
1128     &GUID_WICPixelFormat4bppIndexed,
1129     &GUID_WICPixelFormat8bppIndexed,
1130     &GUID_WICPixelFormat16bppBGR555,
1131     &GUID_WICPixelFormat16bppBGR565,
1132     &GUID_WICPixelFormat24bppBGR,
1133     &GUID_WICPixelFormat32bppBGR,
1134     &GUID_WICPixelFormat32bppBGRA,
1135     NULL
1136 };
1137
1138 static struct decoder_pattern const bmp_patterns[] = {
1139     {2,0,bmp_magic,mask_all,0},
1140     {0}
1141 };
1142
1143 static const BYTE gif87a_magic[6] = "GIF87a";
1144 static const BYTE gif89a_magic[6] = "GIF89a";
1145
1146 static GUID const * const gif_formats[] = {
1147     &GUID_WICPixelFormat8bppIndexed,
1148     NULL
1149 };
1150
1151 static struct decoder_pattern const gif_patterns[] = {
1152     {6,0,gif87a_magic,mask_all,0},
1153     {6,0,gif89a_magic,mask_all,0},
1154     {0}
1155 };
1156
1157 static const BYTE ico_magic[] = {00,00,01,00};
1158
1159 static GUID const * const ico_formats[] = {
1160     &GUID_WICPixelFormat32bppBGRA,
1161     NULL
1162 };
1163
1164 static struct decoder_pattern const ico_patterns[] = {
1165     {4,0,ico_magic,mask_all,0},
1166     {0}
1167 };
1168
1169 static const BYTE jpeg_magic[] = {0xff, 0xd8};
1170
1171 static GUID const * const jpeg_formats[] = {
1172     &GUID_WICPixelFormat24bppBGR,
1173     &GUID_WICPixelFormat32bppCMYK,
1174     &GUID_WICPixelFormat8bppGray,
1175     NULL
1176 };
1177
1178 static struct decoder_pattern const jpeg_patterns[] = {
1179     {2,0,jpeg_magic,mask_all,0},
1180     {0}
1181 };
1182
1183 static const BYTE png_magic[] = {137,80,78,71,13,10,26,10};
1184
1185 static GUID const * const png_formats[] = {
1186     &GUID_WICPixelFormatBlackWhite,
1187     &GUID_WICPixelFormat2bppGray,
1188     &GUID_WICPixelFormat4bppGray,
1189     &GUID_WICPixelFormat8bppGray,
1190     &GUID_WICPixelFormat16bppGray,
1191     &GUID_WICPixelFormat32bppBGRA,
1192     &GUID_WICPixelFormat64bppRGBA,
1193     &GUID_WICPixelFormat1bppIndexed,
1194     &GUID_WICPixelFormat2bppIndexed,
1195     &GUID_WICPixelFormat4bppIndexed,
1196     &GUID_WICPixelFormat8bppIndexed,
1197     &GUID_WICPixelFormat24bppBGR,
1198     &GUID_WICPixelFormat48bppRGB,
1199     NULL
1200 };
1201
1202 static struct decoder_pattern const png_patterns[] = {
1203     {8,0,png_magic,mask_all,0},
1204     {0}
1205 };
1206
1207 static const BYTE tiff_magic_le[] = {0x49,0x49,42,0};
1208 static const BYTE tiff_magic_be[] = {0x4d,0x4d,0,42};
1209
1210 static GUID const * const tiff_decode_formats[] = {
1211     &GUID_WICPixelFormatBlackWhite,
1212     &GUID_WICPixelFormat4bppGray,
1213     &GUID_WICPixelFormat8bppGray,
1214     &GUID_WICPixelFormat1bppIndexed,
1215     &GUID_WICPixelFormat2bppIndexed,
1216     &GUID_WICPixelFormat4bppIndexed,
1217     &GUID_WICPixelFormat8bppIndexed,
1218     &GUID_WICPixelFormat24bppBGR,
1219     &GUID_WICPixelFormat32bppBGR,
1220     &GUID_WICPixelFormat32bppBGRA,
1221     &GUID_WICPixelFormat32bppPBGRA,
1222     &GUID_WICPixelFormat48bppRGB,
1223     &GUID_WICPixelFormat64bppRGBA,
1224     &GUID_WICPixelFormat64bppPRGBA,
1225     NULL
1226 };
1227
1228 static struct decoder_pattern const tiff_patterns[] = {
1229     {4,0,tiff_magic_le,mask_all,0},
1230     {4,0,tiff_magic_be,mask_all,0},
1231     {0}
1232 };
1233
1234 static const BYTE tga_footer_magic[18] = "TRUEVISION-XFILE.";
1235
1236 static const BYTE tga_indexed_magic[18] = {0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0};
1237 static const BYTE tga_indexed_mask[18] = {0,0xff,0xf7,0,0,0,0,0,0,0,0,0,0,0,0,0,0xff,0xcf};
1238
1239 static const BYTE tga_truecolor_magic[18] = {0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
1240 static const BYTE tga_truecolor_mask[18] = {0,0xff,0xf7,0,0,0,0,0,0,0,0,0,0,0,0,0,0x87,0xc0};
1241
1242 static const BYTE tga_grayscale_magic[18] = {0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0};
1243 static const BYTE tga_grayscale_mask[18] = {0,0xff,0xf7,0,0,0,0,0,0,0,0,0,0,0,0,0,0xff,0xcf};
1244
1245 static GUID const * const tga_formats[] = {
1246     &GUID_WICPixelFormat8bppGray,
1247     &GUID_WICPixelFormat8bppIndexed,
1248     &GUID_WICPixelFormat16bppGray,
1249     &GUID_WICPixelFormat16bppBGR555,
1250     &GUID_WICPixelFormat24bppBGR,
1251     &GUID_WICPixelFormat32bppBGRA,
1252     &GUID_WICPixelFormat32bppPBGRA,
1253     NULL
1254 };
1255
1256 static struct decoder_pattern const tga_patterns[] = {
1257     {18,18,tga_footer_magic,mask_all,1},
1258     {18,0,tga_indexed_magic,tga_indexed_mask,0},
1259     {18,0,tga_truecolor_magic,tga_truecolor_mask,0},
1260     {18,0,tga_grayscale_magic,tga_grayscale_mask,0},
1261     {0}
1262 };
1263
1264 static struct regsvr_decoder const decoder_list[] = {
1265     {   &CLSID_WICBmpDecoder,
1266         "The Wine Project",
1267         "BMP Decoder",
1268         "1.0.0.0",
1269         &GUID_VendorMicrosoft,
1270         &GUID_ContainerFormatBmp,
1271         "image/bmp",
1272         ".bmp,.dib,.rle",
1273         bmp_formats,
1274         bmp_patterns
1275     },
1276     {   &CLSID_WICGifDecoder,
1277         "The Wine Project",
1278         "GIF Decoder",
1279         "1.0.0.0",
1280         &GUID_VendorMicrosoft,
1281         &GUID_ContainerFormatGif,
1282         "image/gif",
1283         ".gif",
1284         gif_formats,
1285         gif_patterns
1286     },
1287     {   &CLSID_WICIcoDecoder,
1288         "The Wine Project",
1289         "ICO Decoder",
1290         "1.0.0.0",
1291         &GUID_VendorMicrosoft,
1292         &GUID_ContainerFormatIco,
1293         "image/vnd.microsoft.icon",
1294         ".ico",
1295         ico_formats,
1296         ico_patterns
1297     },
1298     {   &CLSID_WICJpegDecoder,
1299         "The Wine Project",
1300         "JPEG Decoder",
1301         "1.0.0.0",
1302         &GUID_VendorMicrosoft,
1303         &GUID_ContainerFormatJpeg,
1304         "image/jpeg",
1305         ".jpg;.jpeg;.jfif",
1306         jpeg_formats,
1307         jpeg_patterns
1308     },
1309     {   &CLSID_WICPngDecoder,
1310         "The Wine Project",
1311         "PNG Decoder",
1312         "1.0.0.0",
1313         &GUID_VendorMicrosoft,
1314         &GUID_ContainerFormatPng,
1315         "image/png",
1316         ".png",
1317         png_formats,
1318         png_patterns
1319     },
1320     {   &CLSID_WICTiffDecoder,
1321         "The Wine Project",
1322         "TIFF Decoder",
1323         "1.0.0.0",
1324         &GUID_VendorMicrosoft,
1325         &GUID_ContainerFormatTiff,
1326         "image/tiff",
1327         ".tif;.tiff",
1328         tiff_decode_formats,
1329         tiff_patterns
1330     },
1331     {   &CLSID_WineTgaDecoder,
1332         "The Wine Project",
1333         "TGA Decoder",
1334         "1.0.0.0",
1335         &GUID_VendorWine,
1336         &GUID_WineContainerFormatTga,
1337         "image/x-targa",
1338         ".tga;.tpic",
1339         tga_formats,
1340         tga_patterns
1341     },
1342     { NULL }                    /* list terminator */
1343 };
1344
1345 static GUID const * const bmp_encode_formats[] = {
1346     &GUID_WICPixelFormat16bppBGR555,
1347     &GUID_WICPixelFormat16bppBGR565,
1348     &GUID_WICPixelFormat24bppBGR,
1349     &GUID_WICPixelFormat32bppBGR,
1350     &GUID_WICPixelFormatBlackWhite,
1351     &GUID_WICPixelFormat1bppIndexed,
1352     &GUID_WICPixelFormat4bppIndexed,
1353     &GUID_WICPixelFormat8bppIndexed,
1354     NULL
1355 };
1356
1357 static GUID const * const png_encode_formats[] = {
1358     &GUID_WICPixelFormat24bppBGR,
1359     &GUID_WICPixelFormatBlackWhite,
1360     &GUID_WICPixelFormat2bppGray,
1361     &GUID_WICPixelFormat4bppGray,
1362     &GUID_WICPixelFormat8bppGray,
1363     &GUID_WICPixelFormat16bppGray,
1364     &GUID_WICPixelFormat32bppBGR,
1365     &GUID_WICPixelFormat32bppBGRA,
1366     &GUID_WICPixelFormat48bppRGB,
1367     &GUID_WICPixelFormat64bppRGBA,
1368     &GUID_WICPixelFormat1bppIndexed,
1369     &GUID_WICPixelFormat2bppIndexed,
1370     &GUID_WICPixelFormat4bppIndexed,
1371     &GUID_WICPixelFormat8bppIndexed,
1372     NULL
1373 };
1374
1375 static GUID const * const tiff_encode_formats[] = {
1376     &GUID_WICPixelFormatBlackWhite,
1377     &GUID_WICPixelFormat4bppGray,
1378     &GUID_WICPixelFormat8bppGray,
1379     &GUID_WICPixelFormat1bppIndexed,
1380     &GUID_WICPixelFormat4bppIndexed,
1381     &GUID_WICPixelFormat8bppIndexed,
1382     &GUID_WICPixelFormat24bppBGR,
1383     &GUID_WICPixelFormat32bppBGRA,
1384     &GUID_WICPixelFormat32bppPBGRA,
1385     &GUID_WICPixelFormat48bppRGB,
1386     &GUID_WICPixelFormat64bppRGBA,
1387     &GUID_WICPixelFormat64bppPRGBA,
1388     NULL
1389 };
1390
1391 static GUID const * const icns_encode_formats[] = {
1392     &GUID_WICPixelFormat32bppBGRA,
1393     NULL
1394 };
1395
1396 static struct regsvr_encoder const encoder_list[] = {
1397     {   &CLSID_WICBmpEncoder,
1398         "The Wine Project",
1399         "BMP Encoder",
1400         "1.0.0.0",
1401         &GUID_VendorMicrosoft,
1402         &GUID_ContainerFormatBmp,
1403         "image/bmp",
1404         ".bmp,.dib,.rle",
1405         bmp_encode_formats
1406     },
1407     {   &CLSID_WICJpegEncoder,
1408         "The Wine Project",
1409         "JPEG Encoder",
1410         "1.0.0.0",
1411         &GUID_VendorMicrosoft,
1412         &GUID_ContainerFormatJpeg,
1413         "image/jpeg",
1414         ".jpg;.jpeg;.jfif",
1415         jpeg_formats
1416     },
1417     {   &CLSID_WICPngEncoder,
1418         "The Wine Project",
1419         "PNG Encoder",
1420         "1.0.0.0",
1421         &GUID_VendorMicrosoft,
1422         &GUID_ContainerFormatPng,
1423         "image/png",
1424         ".png",
1425         png_encode_formats
1426     },
1427     {   &CLSID_WICTiffEncoder,
1428         "The Wine Project",
1429         "TIFF Encoder",
1430         "1.0.0.0",
1431         &GUID_VendorMicrosoft,
1432         &GUID_ContainerFormatTiff,
1433         "image/tiff",
1434         ".tif;.tiff",
1435         tiff_encode_formats
1436     },
1437     {   &CLSID_WICIcnsEncoder,
1438         "The Wine Project",
1439         "ICNS Encoder",
1440         "1.0.0.0",
1441         &GUID_VendorWine,
1442         NULL, /* no container format guid */
1443         "image/icns",
1444         ".icns",
1445         icns_encode_formats
1446     },
1447     { NULL }                    /* list terminator */
1448 };
1449
1450 static GUID const * const converter_formats[] = {
1451     &GUID_WICPixelFormat1bppIndexed,
1452     &GUID_WICPixelFormat2bppIndexed,
1453     &GUID_WICPixelFormat4bppIndexed,
1454     &GUID_WICPixelFormat8bppIndexed,
1455     &GUID_WICPixelFormatBlackWhite,
1456     &GUID_WICPixelFormat2bppGray,
1457     &GUID_WICPixelFormat4bppGray,
1458     &GUID_WICPixelFormat8bppGray,
1459     &GUID_WICPixelFormat16bppGray,
1460     &GUID_WICPixelFormat16bppBGR555,
1461     &GUID_WICPixelFormat16bppBGR565,
1462     &GUID_WICPixelFormat16bppBGRA5551,
1463     &GUID_WICPixelFormat24bppBGR,
1464     &GUID_WICPixelFormat24bppRGB,
1465     &GUID_WICPixelFormat32bppBGR,
1466     &GUID_WICPixelFormat32bppRGB,
1467     &GUID_WICPixelFormat32bppBGRA,
1468     &GUID_WICPixelFormat32bppRGBA,
1469     &GUID_WICPixelFormat32bppPBGRA,
1470     &GUID_WICPixelFormat32bppPRGBA,
1471     &GUID_WICPixelFormat32bppGrayFloat,
1472     &GUID_WICPixelFormat48bppRGB,
1473     &GUID_WICPixelFormat64bppRGBA,
1474     &GUID_WICPixelFormat32bppCMYK,
1475     NULL
1476 };
1477
1478 static struct regsvr_converter const converter_list[] = {
1479     {   &CLSID_WICDefaultFormatConverter,
1480         "The Wine Project",
1481         "Default Pixel Format Converter",
1482         "1.0.0.0",
1483         &GUID_VendorMicrosoft,
1484         converter_formats
1485     },
1486     { NULL }                    /* list terminator */
1487 };
1488
1489 static const BYTE no_magic[1] = { 0 };
1490 static const BYTE no_mask[1] = { 0 };
1491
1492 static const struct metadata_pattern ifd_metadata_pattern[] = {
1493     { 0, 1, no_magic, no_mask, 0 },
1494     { 0 }
1495 };
1496
1497 static const struct reader_containers ifd_containers[] = {
1498     {
1499         &GUID_ContainerFormatTiff,
1500         ifd_metadata_pattern
1501     },
1502     { NULL } /* list terminator */
1503 };
1504
1505 static const BYTE tEXt[] = "tEXt";
1506
1507 static const struct metadata_pattern pngtext_metadata_pattern[] = {
1508     { 4, 4, tEXt, mask_all, 4 },
1509     { 0 }
1510 };
1511
1512 static const struct reader_containers pngtext_containers[] = {
1513     {
1514         &GUID_ContainerFormatPng,
1515         pngtext_metadata_pattern
1516     },
1517     { NULL } /* list terminator */
1518 };
1519
1520 static const BYTE gAMA[] = "gAMA";
1521
1522 static const struct metadata_pattern pnggama_metadata_pattern[] = {
1523     { 4, 4, gAMA, mask_all, 4 },
1524     { 0 }
1525 };
1526
1527 static const struct reader_containers pnggama_containers[] = {
1528     {
1529         &GUID_ContainerFormatPng,
1530         pnggama_metadata_pattern
1531     },
1532     { NULL } /* list terminator */
1533 };
1534
1535 static const BYTE cHRM[] = "cHRM";
1536
1537 static const struct metadata_pattern pngchrm_metadata_pattern[] = {
1538     { 4, 4, cHRM, mask_all, 4 },
1539     { 0 }
1540 };
1541
1542 static const struct reader_containers pngchrm_containers[] = {
1543     {
1544         &GUID_ContainerFormatPng,
1545         pngchrm_metadata_pattern
1546     },
1547     { NULL } /* list terminator */
1548 };
1549
1550 static const struct metadata_pattern lsd_metadata_patterns[] = {
1551     { 0, 6, gif87a_magic, mask_all, 0 },
1552     { 0, 6, gif89a_magic, mask_all, 0 },
1553     { 0 }
1554 };
1555
1556 static const struct reader_containers lsd_containers[] = {
1557     {
1558         &GUID_ContainerFormatGif,
1559         lsd_metadata_patterns
1560     },
1561     { NULL } /* list terminator */
1562 };
1563
1564 static const BYTE imd_magic[] = { 0x2c };
1565
1566 static const struct metadata_pattern imd_metadata_pattern[] = {
1567     { 0, 1, imd_magic, mask_all, 1 },
1568     { 0 }
1569 };
1570
1571 static const struct reader_containers imd_containers[] = {
1572     {
1573         &GUID_ContainerFormatGif,
1574         imd_metadata_pattern
1575     },
1576     { NULL } /* list terminator */
1577 };
1578
1579 static const BYTE gce_magic[] = { 0x21, 0xf9, 0x04 };
1580
1581 static const struct metadata_pattern gce_metadata_pattern[] = {
1582     { 0, 3, gce_magic, mask_all, 3 },
1583     { 0 }
1584 };
1585
1586 static const struct reader_containers gce_containers[] = {
1587     {
1588         &GUID_ContainerFormatGif,
1589         gce_metadata_pattern
1590     },
1591     { NULL } /* list terminator */
1592 };
1593
1594 static const BYTE ape_magic[] = { 0x21, 0xff, 0x0b };
1595
1596 static const struct metadata_pattern ape_metadata_pattern[] = {
1597     { 0, 3, ape_magic, mask_all, 0 },
1598     { 0 }
1599 };
1600
1601 static const struct reader_containers ape_containers[] = {
1602     {
1603         &GUID_ContainerFormatGif,
1604         ape_metadata_pattern
1605     },
1606     { NULL } /* list terminator */
1607 };
1608
1609 static const BYTE gif_comment_magic[] = { 0x21, 0xfe };
1610
1611 static const struct metadata_pattern gif_comment_metadata_pattern[] = {
1612     { 0, 2, gif_comment_magic, mask_all, 0 },
1613     { 0 }
1614 };
1615
1616 static const struct reader_containers gif_comment_containers[] = {
1617     {
1618         &GUID_ContainerFormatGif,
1619         gif_comment_metadata_pattern
1620     },
1621     { NULL } /* list terminator */
1622 };
1623
1624 static struct regsvr_metadatareader const metadatareader_list[] = {
1625     {   &CLSID_WICUnknownMetadataReader,
1626         "The Wine Project",
1627         "Unknown Metadata Reader",
1628         "1.0.0.0",
1629         "1.0.0.0",
1630         &GUID_VendorMicrosoft,
1631         &GUID_MetadataFormatUnknown,
1632         0, 0, 0,
1633         NULL
1634     },
1635     {   &CLSID_WICIfdMetadataReader,
1636         "The Wine Project",
1637         "Ifd Reader",
1638         "1.0.0.0",
1639         "1.0.0.0",
1640         &GUID_VendorMicrosoft,
1641         &GUID_MetadataFormatIfd,
1642         1, 1, 0,
1643         ifd_containers
1644     },
1645     {   &CLSID_WICPngChrmMetadataReader,
1646         "The Wine Project",
1647         "Chunk cHRM Reader",
1648         "1.0.0.0",
1649         "1.0.0.0",
1650         &GUID_VendorMicrosoft,
1651         &GUID_MetadataFormatChunkcHRM,
1652         0, 0, 0,
1653         pngchrm_containers
1654     },
1655     {   &CLSID_WICPngGamaMetadataReader,
1656         "The Wine Project",
1657         "Chunk gAMA Reader",
1658         "1.0.0.0",
1659         "1.0.0.0",
1660         &GUID_VendorMicrosoft,
1661         &GUID_MetadataFormatChunkgAMA,
1662         0, 0, 0,
1663         pnggama_containers
1664     },
1665     {   &CLSID_WICPngTextMetadataReader,
1666         "The Wine Project",
1667         "Chunk tEXt Reader",
1668         "1.0.0.0",
1669         "1.0.0.0",
1670         &GUID_VendorMicrosoft,
1671         &GUID_MetadataFormatChunktEXt,
1672         0, 0, 0,
1673         pngtext_containers
1674     },
1675     {   &CLSID_WICLSDMetadataReader,
1676         "The Wine Project",
1677         "Logical Screen Descriptor Reader",
1678         "1.0.0.0",
1679         "1.0.0.0",
1680         &GUID_VendorMicrosoft,
1681         &GUID_MetadataFormatLSD,
1682         0, 0, 0,
1683         lsd_containers
1684     },
1685     {   &CLSID_WICIMDMetadataReader,
1686         "The Wine Project",
1687         "Image Descriptor Reader",
1688         "1.0.0.0",
1689         "1.0.0.0",
1690         &GUID_VendorMicrosoft,
1691         &GUID_MetadataFormatIMD,
1692         0, 0, 0,
1693         imd_containers
1694     },
1695     {   &CLSID_WICGCEMetadataReader,
1696         "The Wine Project",
1697         "Graphic Control Extension Reader",
1698         "1.0.0.0",
1699         "1.0.0.0",
1700         &GUID_VendorMicrosoft,
1701         &GUID_MetadataFormatGCE,
1702         0, 0, 0,
1703         gce_containers
1704     },
1705     {   &CLSID_WICAPEMetadataReader,
1706         "The Wine Project",
1707         "Application Extension Reader",
1708         "1.0.0.0",
1709         "1.0.0.0",
1710         &GUID_VendorMicrosoft,
1711         &GUID_MetadataFormatAPE,
1712         0, 0, 0,
1713         ape_containers
1714     },
1715     {   &CLSID_WICGifCommentMetadataReader,
1716         "The Wine Project",
1717         "Comment Extension Reader",
1718         "1.0.0.0",
1719         "1.0.0.0",
1720         &GUID_VendorMicrosoft,
1721         &GUID_MetadataFormatGifComment,
1722         0, 0, 0,
1723         gif_comment_containers
1724     },
1725     { NULL }                    /* list terminator */
1726 };
1727
1728 static BYTE const channel_mask_1bit[] = { 0x01 };
1729 static BYTE const channel_mask_2bit[] = { 0x03 };
1730 static BYTE const channel_mask_4bit[] = { 0x0f };
1731
1732 static BYTE const channel_mask_8bit[] = { 0xff, 0x00, 0x00, 0x00 };
1733 static BYTE const channel_mask_8bit2[] = { 0x00, 0xff, 0x00, 0x00 };
1734 static BYTE const channel_mask_8bit3[] = { 0x00, 0x00, 0xff, 0x00 };
1735 static BYTE const channel_mask_8bit4[] = { 0x00, 0x00, 0x00, 0xff };
1736
1737 static BYTE const channel_mask_16bit[] = { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
1738 static BYTE const channel_mask_16bit2[] = { 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
1739 static BYTE const channel_mask_16bit3[] = { 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00 };
1740 static BYTE const channel_mask_16bit4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff };
1741
1742 static BYTE const channel_mask_32bit[] = { 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 };
1743
1744 static BYTE const channel_mask_5bit[] = { 0x1f, 0x00 };
1745 static BYTE const channel_mask_5bit2[] = { 0xe0, 0x03 };
1746 static BYTE const channel_mask_5bit3[] = { 0x00, 0x7c };
1747 static BYTE const channel_mask_5bit4[] = { 0x00, 0x80 };
1748
1749 static BYTE const channel_mask_BGR565_2[] = { 0xe0, 0x07 };
1750 static BYTE const channel_mask_BGR565_3[] = { 0x00, 0xf8 };
1751
1752 static BYTE const * const channel_masks_1bit[] = { channel_mask_1bit };
1753 static BYTE const * const channel_masks_2bit[] = { channel_mask_2bit };
1754 static BYTE const * const channel_masks_4bit[] = { channel_mask_4bit };
1755 static BYTE const * const channel_masks_8bit[] = { channel_mask_8bit,
1756     channel_mask_8bit2, channel_mask_8bit3, channel_mask_8bit4 };
1757 static BYTE const * const channel_masks_16bit[] = { channel_mask_16bit,
1758     channel_mask_16bit2, channel_mask_16bit3, channel_mask_16bit4};
1759
1760 static BYTE const * const channel_masks_32bit[] = { channel_mask_32bit };
1761
1762 static BYTE const * const channel_masks_BGRA5551[] = { channel_mask_5bit,
1763     channel_mask_5bit2, channel_mask_5bit3, channel_mask_5bit4 };
1764
1765 static BYTE const * const channel_masks_BGR565[] = { channel_mask_5bit,
1766     channel_mask_BGR565_2, channel_mask_BGR565_3 };
1767
1768 static struct regsvr_pixelformat const pixelformat_list[] = {
1769     {   &GUID_WICPixelFormat1bppIndexed,
1770         "The Wine Project",
1771         "1bpp Indexed",
1772         NULL, /* no version */
1773         &GUID_VendorMicrosoft,
1774         1, /* bitsperpixel */
1775         1, /* channel count */
1776         channel_masks_1bit,
1777         WICPixelFormatNumericRepresentationIndexed,
1778         1
1779     },
1780     {   &GUID_WICPixelFormat2bppIndexed,
1781         "The Wine Project",
1782         "2bpp Indexed",
1783         NULL, /* no version */
1784         &GUID_VendorMicrosoft,
1785         2, /* bitsperpixel */
1786         1, /* channel count */
1787         channel_masks_2bit,
1788         WICPixelFormatNumericRepresentationIndexed,
1789         1
1790     },
1791     {   &GUID_WICPixelFormat4bppIndexed,
1792         "The Wine Project",
1793         "4bpp Indexed",
1794         NULL, /* no version */
1795         &GUID_VendorMicrosoft,
1796         4, /* bitsperpixel */
1797         1, /* channel count */
1798         channel_masks_4bit,
1799         WICPixelFormatNumericRepresentationIndexed,
1800         1
1801     },
1802     {   &GUID_WICPixelFormat8bppIndexed,
1803         "The Wine Project",
1804         "8bpp Indexed",
1805         NULL, /* no version */
1806         &GUID_VendorMicrosoft,
1807         8, /* bitsperpixel */
1808         1, /* channel count */
1809         channel_masks_8bit,
1810         WICPixelFormatNumericRepresentationIndexed,
1811         1
1812     },
1813     {   &GUID_WICPixelFormatBlackWhite,
1814         "The Wine Project",
1815         "Black and White",
1816         NULL, /* no version */
1817         &GUID_VendorMicrosoft,
1818         1, /* bitsperpixel */
1819         1, /* channel count */
1820         channel_masks_1bit,
1821         WICPixelFormatNumericRepresentationUnsignedInteger,
1822         0
1823     },
1824     {   &GUID_WICPixelFormat2bppGray,
1825         "The Wine Project",
1826         "2bpp Grayscale",
1827         NULL, /* no version */
1828         &GUID_VendorMicrosoft,
1829         2, /* bitsperpixel */
1830         1, /* channel count */
1831         channel_masks_2bit,
1832         WICPixelFormatNumericRepresentationUnsignedInteger,
1833         0
1834     },
1835     {   &GUID_WICPixelFormat4bppGray,
1836         "The Wine Project",
1837         "4bpp Grayscale",
1838         NULL, /* no version */
1839         &GUID_VendorMicrosoft,
1840         4, /* bitsperpixel */
1841         1, /* channel count */
1842         channel_masks_4bit,
1843         WICPixelFormatNumericRepresentationUnsignedInteger,
1844         0
1845     },
1846     {   &GUID_WICPixelFormat8bppGray,
1847         "The Wine Project",
1848         "8bpp Grayscale",
1849         NULL, /* no version */
1850         &GUID_VendorMicrosoft,
1851         8, /* bitsperpixel */
1852         1, /* channel count */
1853         channel_masks_8bit,
1854         WICPixelFormatNumericRepresentationUnsignedInteger,
1855         0
1856     },
1857     {   &GUID_WICPixelFormat16bppGray,
1858         "The Wine Project",
1859         "16bpp Grayscale",
1860         NULL, /* no version */
1861         &GUID_VendorMicrosoft,
1862         16, /* bitsperpixel */
1863         1, /* channel count */
1864         channel_masks_16bit,
1865         WICPixelFormatNumericRepresentationUnsignedInteger,
1866         0
1867     },
1868     {   &GUID_WICPixelFormat16bppBGR555,
1869         "The Wine Project",
1870         "16bpp BGR555",
1871         NULL, /* no version */
1872         &GUID_VendorMicrosoft,
1873         16, /* bitsperpixel */
1874         3, /* channel count */
1875         channel_masks_BGRA5551,
1876         WICPixelFormatNumericRepresentationUnsignedInteger,
1877         0
1878     },
1879     {   &GUID_WICPixelFormat16bppBGR565,
1880         "The Wine Project",
1881         "16bpp BGR565",
1882         NULL, /* no version */
1883         &GUID_VendorMicrosoft,
1884         16, /* bitsperpixel */
1885         3, /* channel count */
1886         channel_masks_BGR565,
1887         WICPixelFormatNumericRepresentationUnsignedInteger,
1888         0
1889     },
1890     {   &GUID_WICPixelFormat16bppBGRA5551,
1891         "The Wine Project",
1892         "16bpp BGRA5551",
1893         NULL, /* no version */
1894         &GUID_VendorMicrosoft,
1895         16, /* bitsperpixel */
1896         4, /* channel count */
1897         channel_masks_BGRA5551,
1898         WICPixelFormatNumericRepresentationUnsignedInteger,
1899         1
1900     },
1901     {   &GUID_WICPixelFormat24bppBGR,
1902         "The Wine Project",
1903         "24bpp BGR",
1904         NULL, /* no version */
1905         &GUID_VendorMicrosoft,
1906         24, /* bitsperpixel */
1907         3, /* channel count */
1908         channel_masks_8bit,
1909         WICPixelFormatNumericRepresentationUnsignedInteger,
1910         0
1911     },
1912     {   &GUID_WICPixelFormat24bppRGB,
1913         "The Wine Project",
1914         "24bpp RGB",
1915         NULL, /* no version */
1916         &GUID_VendorMicrosoft,
1917         24, /* bitsperpixel */
1918         3, /* channel count */
1919         channel_masks_8bit,
1920         WICPixelFormatNumericRepresentationUnsignedInteger,
1921         0
1922     },
1923     {   &GUID_WICPixelFormat32bppBGR,
1924         "The Wine Project",
1925         "32bpp BGR",
1926         NULL, /* no version */
1927         &GUID_VendorMicrosoft,
1928         32, /* bitsperpixel */
1929         3, /* channel count */
1930         channel_masks_8bit,
1931         WICPixelFormatNumericRepresentationUnsignedInteger,
1932         0
1933     },
1934     {   &GUID_WICPixelFormat32bppRGB,
1935         "The Wine Project",
1936         "32bpp RGB",
1937         NULL, /* no version */
1938         &GUID_VendorMicrosoft,
1939         32, /* bitsperpixel */
1940         3, /* channel count */
1941         channel_masks_8bit,
1942         WICPixelFormatNumericRepresentationUnsignedInteger,
1943         0
1944     },
1945     {   &GUID_WICPixelFormat32bppBGRA,
1946         "The Wine Project",
1947         "32bpp BGRA",
1948         NULL, /* no version */
1949         &GUID_VendorMicrosoft,
1950         32, /* bitsperpixel */
1951         4, /* channel count */
1952         channel_masks_8bit,
1953         WICPixelFormatNumericRepresentationUnsignedInteger,
1954         1
1955     },
1956     {   &GUID_WICPixelFormat32bppRGBA,
1957         "The Wine Project",
1958         "32bpp RGBA",
1959         NULL, /* no version */
1960         &GUID_VendorMicrosoft,
1961         32, /* bitsperpixel */
1962         4, /* channel count */
1963         channel_masks_8bit,
1964         WICPixelFormatNumericRepresentationUnsignedInteger,
1965         1
1966     },
1967     {   &GUID_WICPixelFormat32bppPBGRA,
1968         "The Wine Project",
1969         "32bpp PBGRA",
1970         NULL, /* no version */
1971         &GUID_VendorMicrosoft,
1972         32, /* bitsperpixel */
1973         4, /* channel count */
1974         channel_masks_8bit,
1975         WICPixelFormatNumericRepresentationUnsignedInteger,
1976         1
1977     },
1978     {   &GUID_WICPixelFormat32bppPRGBA,
1979         "The Wine Project",
1980         "32bpp PRGBA",
1981         NULL, /* no version */
1982         &GUID_VendorMicrosoft,
1983         32, /* bitsperpixel */
1984         4, /* channel count */
1985         channel_masks_8bit,
1986         WICPixelFormatNumericRepresentationUnsignedInteger,
1987         1
1988     },
1989     {   &GUID_WICPixelFormat32bppGrayFloat,
1990         "The Wine Project",
1991         "32bpp GrayFloat",
1992         NULL, /* no version */
1993         &GUID_VendorMicrosoft,
1994         32, /* bitsperpixel */
1995         1, /* channel count */
1996         channel_masks_32bit,
1997         WICPixelFormatNumericRepresentationFloat,
1998         1
1999     },
2000     {   &GUID_WICPixelFormat48bppRGB,
2001         "The Wine Project",
2002         "48bpp RGB",
2003         NULL, /* no version */
2004         &GUID_VendorMicrosoft,
2005         48, /* bitsperpixel */
2006         3, /* channel count */
2007         channel_masks_16bit,
2008         WICPixelFormatNumericRepresentationUnsignedInteger,
2009         0
2010     },
2011     {   &GUID_WICPixelFormat64bppRGBA,
2012         "The Wine Project",
2013         "64bpp RGBA",
2014         NULL, /* no version */
2015         &GUID_VendorMicrosoft,
2016         64, /* bitsperpixel */
2017         4, /* channel count */
2018         channel_masks_16bit,
2019         WICPixelFormatNumericRepresentationUnsignedInteger,
2020         1
2021     },
2022     {   &GUID_WICPixelFormat64bppPRGBA,
2023         "The Wine Project",
2024         "64bpp PRGBA",
2025         NULL, /* no version */
2026         &GUID_VendorMicrosoft,
2027         64, /* bitsperpixel */
2028         4, /* channel count */
2029         channel_masks_16bit,
2030         WICPixelFormatNumericRepresentationUnsignedInteger,
2031         1
2032     },
2033     {   &GUID_WICPixelFormat32bppCMYK,
2034         "The Wine Project",
2035         "32bpp CMYK",
2036         NULL, /* no version */
2037         &GUID_VendorMicrosoft,
2038         32, /* bitsperpixel */
2039         4, /* channel count */
2040         channel_masks_8bit,
2041         WICPixelFormatNumericRepresentationUnsignedInteger,
2042         0
2043     },
2044     { NULL }                    /* list terminator */
2045 };
2046
2047 struct regsvr_category
2048 {
2049     const CLSID *clsid; /* NULL for end of list */
2050 };
2051
2052 static const struct regsvr_category category_list[] = {
2053     { &CATID_WICBitmapDecoders },
2054     { &CATID_WICBitmapEncoders },
2055     { &CATID_WICFormatConverters },
2056     { &CATID_WICMetadataReader },
2057     { &CATID_WICPixelFormats },
2058     { NULL }
2059 };
2060
2061 static HRESULT register_categories(const struct regsvr_category *list)
2062 {
2063     LONG res;
2064     WCHAR buf[39];
2065     HKEY coclass_key, categories_key, instance_key;
2066
2067     res = RegCreateKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0, NULL, 0,
2068                           KEY_READ | KEY_WRITE, NULL, &coclass_key, NULL);
2069     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
2070
2071     StringFromGUID2(&CLSID_WICImagingCategories, buf, 39);
2072     res = RegCreateKeyExW(coclass_key, buf, 0, NULL, 0,
2073                           KEY_READ | KEY_WRITE, NULL, &categories_key, NULL);
2074     if (res != ERROR_SUCCESS)
2075     {
2076         RegCloseKey(coclass_key);
2077         return HRESULT_FROM_WIN32(res);
2078     }
2079
2080     res = RegCreateKeyExW(categories_key, instance_keyname, 0, NULL, 0,
2081                           KEY_READ | KEY_WRITE, NULL, &instance_key, NULL);
2082
2083     for (; res == ERROR_SUCCESS && list->clsid; list++)
2084     {
2085         HKEY instance_clsid_key;
2086
2087         StringFromGUID2(list->clsid, buf, 39);
2088         res = RegCreateKeyExW(instance_key, buf, 0, NULL, 0,
2089                               KEY_READ | KEY_WRITE, NULL, &instance_clsid_key, NULL);
2090         if (res == ERROR_SUCCESS)
2091         {
2092             res = RegSetValueExW(instance_clsid_key, clsid_valuename, 0, REG_SZ,
2093                                  (const BYTE *)buf, 78);
2094             RegCloseKey(instance_clsid_key);
2095         }
2096     }
2097
2098     RegCloseKey(instance_key);
2099     RegCloseKey(categories_key);
2100     RegCloseKey(coclass_key);
2101
2102     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
2103 }
2104
2105 static HRESULT unregister_categories(const struct regsvr_category *list)
2106 {
2107     LONG res;
2108     WCHAR buf[39];
2109     HKEY coclass_key, categories_key, instance_key;
2110
2111     res = RegOpenKeyExW(HKEY_CLASSES_ROOT, clsid_keyname, 0,
2112                         KEY_READ | KEY_WRITE, &coclass_key);
2113     if (res != ERROR_SUCCESS) return HRESULT_FROM_WIN32(res);
2114
2115     StringFromGUID2(&CLSID_WICImagingCategories, buf, 39);
2116     res = RegOpenKeyExW(coclass_key, buf, 0,
2117                         KEY_READ | KEY_WRITE, &categories_key);
2118     if (res != ERROR_SUCCESS)
2119     {
2120         if (res == ERROR_FILE_NOT_FOUND) res = ERROR_SUCCESS;
2121         RegCloseKey(coclass_key);
2122         return HRESULT_FROM_WIN32(res);
2123     }
2124
2125     res = RegOpenKeyExW(categories_key, instance_keyname, 0,
2126                           KEY_READ | KEY_WRITE, &instance_key);
2127
2128     for (; res == ERROR_SUCCESS && list->clsid; list++)
2129     {
2130         StringFromGUID2(list->clsid, buf, 39);
2131         res = RegDeleteTreeW(instance_key, buf);
2132     }
2133
2134     RegCloseKey(instance_key);
2135     RegCloseKey(categories_key);
2136
2137     StringFromGUID2(&CLSID_WICImagingCategories, buf, 39);
2138     res = RegDeleteTreeW(coclass_key, buf);
2139
2140     RegCloseKey(coclass_key);
2141
2142     return res != ERROR_SUCCESS ? HRESULT_FROM_WIN32(res) : S_OK;
2143 }
2144
2145 extern HRESULT WINAPI WIC_DllRegisterServer(void) DECLSPEC_HIDDEN;
2146 extern HRESULT WINAPI WIC_DllUnregisterServer(void) DECLSPEC_HIDDEN;
2147
2148 HRESULT WINAPI DllRegisterServer(void)
2149 {
2150     HRESULT hr;
2151
2152     TRACE("\n");
2153
2154     hr = WIC_DllRegisterServer();
2155     if (SUCCEEDED(hr))
2156         hr = register_categories(category_list);
2157     if (SUCCEEDED(hr))
2158         hr = register_decoders(decoder_list);
2159     if (SUCCEEDED(hr))
2160         hr = register_encoders(encoder_list);
2161     if (SUCCEEDED(hr))
2162         hr = register_converters(converter_list);
2163     if (SUCCEEDED(hr))
2164         hr = register_metadatareaders(metadatareader_list);
2165     if (SUCCEEDED(hr))
2166         hr = register_pixelformats(pixelformat_list);
2167     return hr;
2168 }
2169
2170 HRESULT WINAPI DllUnregisterServer(void)
2171 {
2172     HRESULT hr;
2173
2174     TRACE("\n");
2175
2176     hr = WIC_DllUnregisterServer();
2177     if (SUCCEEDED(hr))
2178         hr = unregister_categories(category_list);
2179     if (SUCCEEDED(hr))
2180         hr = unregister_decoders(decoder_list);
2181     if (SUCCEEDED(hr))
2182         hr = unregister_encoders(encoder_list);
2183     if (SUCCEEDED(hr))
2184         hr = unregister_converters(converter_list);
2185     if (SUCCEEDED(hr))
2186         hr = unregister_metadatareaders(metadatareader_list);
2187     if (SUCCEEDED(hr))
2188         hr = unregister_pixelformats(pixelformat_list);
2189     return hr;
2190 }