dlls/windowscodecs/tiffformat.c

   1 /*
   2  * Copyright 2010 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 #include "wine/port.h"
  21
  22 #include <stdarg.h>
  23 #ifdef HAVE_UNISTD_H
  24 #include <unistd.h>
  25 #endif
  26 #ifdef HAVE_TIFFIO_H
  27 #include <tiffio.h>
  28 #endif
  29
  30 #define COBJMACROS
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "objbase.h"
  35 #include "wincodec.h"
  36 #include "wincodecsdk.h"
  37
  38 #include "wincodecs_private.h"
  39
  40 #include "wine/debug.h"
  41 #include "wine/library.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  44
  45 #ifdef SONAME_LIBTIFF
  46
  47 /* Workaround for broken libtiff 4.x headers on some 64-bit hosts which
  48  * define TIFF_UINT64_T/toff_t as 32-bit for 32-bit builds, while they
  49  * are supposed to be always 64-bit.
  50  * TIFF_UINT64_T doesn't exist in libtiff 3.x, it was introduced in 4.x.
  51  */
  52 #ifdef TIFF_UINT64_T
  53 # undef toff_t
  54 # define toff_t UINT64
  55 #endif
  56
  57 static CRITICAL_SECTION init_tiff_cs;
  58 static CRITICAL_SECTION_DEBUG init_tiff_cs_debug =
  59 {
  60     0, 0, &init_tiff_cs,
  61     { &init_tiff_cs_debug.ProcessLocksList,
  62       &init_tiff_cs_debug.ProcessLocksList },
  63     0, 0, { (DWORD_PTR)(__FILE__ ": init_tiff_cs") }
  64 };
  65 static CRITICAL_SECTION init_tiff_cs = { &init_tiff_cs_debug, -1, 0, 0, 0, 0 };
  66
  67 static const WCHAR wszTiffCompressionMethod[] = {'T','i','f','f','C','o','m','p','r','e','s','s','i','o','n','M','e','t','h','o','d',0};
  68 static const WCHAR wszCompressionQuality[] = {'C','o','m','p','r','e','s','s','i','o','n','Q','u','a','l','i','t','y',0};
  69
  70 static void *libtiff_handle;
  71 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
  72 MAKE_FUNCPTR(TIFFClientOpen);
  73 MAKE_FUNCPTR(TIFFClose);
  74 MAKE_FUNCPTR(TIFFCurrentDirOffset);
  75 MAKE_FUNCPTR(TIFFGetField);
  76 MAKE_FUNCPTR(TIFFIsByteSwapped);
  77 MAKE_FUNCPTR(TIFFNumberOfDirectories);
  78 MAKE_FUNCPTR(TIFFReadDirectory);
  79 MAKE_FUNCPTR(TIFFReadEncodedStrip);
  80 MAKE_FUNCPTR(TIFFReadEncodedTile);
  81 MAKE_FUNCPTR(TIFFSetDirectory);
  82 MAKE_FUNCPTR(TIFFSetField);
  83 MAKE_FUNCPTR(TIFFWriteDirectory);
  84 MAKE_FUNCPTR(TIFFWriteScanline);
  85 #undef MAKE_FUNCPTR
  86
  87 static void *load_libtiff(void)
  88 {
  89     void *result;
  90
  91     EnterCriticalSection(&init_tiff_cs);
  92
  93     if (!libtiff_handle &&
  94         (libtiff_handle = wine_dlopen(SONAME_LIBTIFF, RTLD_NOW, NULL, 0)) != NULL)
  95     {
  96         void * (*pTIFFSetWarningHandler)(void *);
  97         void * (*pTIFFSetWarningHandlerExt)(void *);
  98
  99 #define LOAD_FUNCPTR(f) \
 100     if((p##f = wine_dlsym(libtiff_handle, #f, NULL, 0)) == NULL) { \
 101         ERR("failed to load symbol %s\n", #f); \
 102         libtiff_handle = NULL; \
 103         LeaveCriticalSection(&init_tiff_cs); \
 104         return NULL; \
 105     }
 106         LOAD_FUNCPTR(TIFFClientOpen);
 107         LOAD_FUNCPTR(TIFFClose);
 108         LOAD_FUNCPTR(TIFFCurrentDirOffset);
 109         LOAD_FUNCPTR(TIFFGetField);
 110         LOAD_FUNCPTR(TIFFIsByteSwapped);
 111         LOAD_FUNCPTR(TIFFNumberOfDirectories);
 112         LOAD_FUNCPTR(TIFFReadDirectory);
 113         LOAD_FUNCPTR(TIFFReadEncodedStrip);
 114         LOAD_FUNCPTR(TIFFReadEncodedTile);
 115         LOAD_FUNCPTR(TIFFSetDirectory);
 116         LOAD_FUNCPTR(TIFFSetField);
 117         LOAD_FUNCPTR(TIFFWriteDirectory);
 118         LOAD_FUNCPTR(TIFFWriteScanline);
 119 #undef LOAD_FUNCPTR
 120
 121         if ((pTIFFSetWarningHandler = wine_dlsym(libtiff_handle, "TIFFSetWarningHandler", NULL, 0)))
 122             pTIFFSetWarningHandler(NULL);
 123         if ((pTIFFSetWarningHandlerExt = wine_dlsym(libtiff_handle, "TIFFSetWarningHandlerExt", NULL, 0)))
 124             pTIFFSetWarningHandlerExt(NULL);
 125     }
 126
 127     result = libtiff_handle;
 128
 129     LeaveCriticalSection(&init_tiff_cs);
 130     return result;
 131 }
 132
 133 static tsize_t tiff_stream_read(thandle_t client_data, tdata_t data, tsize_t size)
 134 {
 135     IStream *stream = (IStream*)client_data;
 136     ULONG bytes_read;
 137     HRESULT hr;
 138
 139     hr = IStream_Read(stream, data, size, &bytes_read);
 140     if (FAILED(hr)) bytes_read = 0;
 141     return bytes_read;
 142 }
 143
 144 static tsize_t tiff_stream_write(thandle_t client_data, tdata_t data, tsize_t size)
 145 {
 146     IStream *stream = (IStream*)client_data;
 147     ULONG bytes_written;
 148     HRESULT hr;
 149
 150     hr = IStream_Write(stream, data, size, &bytes_written);
 151     if (FAILED(hr)) bytes_written = 0;
 152     return bytes_written;
 153 }
 154
 155 static toff_t tiff_stream_seek(thandle_t client_data, toff_t offset, int whence)
 156 {
 157     IStream *stream = (IStream*)client_data;
 158     LARGE_INTEGER move;
 159     DWORD origin;
 160     ULARGE_INTEGER new_position;
 161     HRESULT hr;
 162
 163     move.QuadPart = offset;
 164     switch (whence)
 165     {
 166         case SEEK_SET:
 167             origin = STREAM_SEEK_SET;
 168             break;
 169         case SEEK_CUR:
 170             origin = STREAM_SEEK_CUR;
 171             break;
 172         case SEEK_END:
 173             origin = STREAM_SEEK_END;
 174             break;
 175         default:
 176             ERR("unknown whence value %i\n", whence);
 177             return -1;
 178     }
 179
 180     hr = IStream_Seek(stream, move, origin, &new_position);
 181     if (SUCCEEDED(hr)) return new_position.QuadPart;
 182     else return -1;
 183 }
 184
 185 static int tiff_stream_close(thandle_t client_data)
 186 {
 187     /* Caller is responsible for releasing the stream object. */
 188     return 0;
 189 }
 190
 191 static toff_t tiff_stream_size(thandle_t client_data)
 192 {
 193     IStream *stream = (IStream*)client_data;
 194     STATSTG statstg;
 195     HRESULT hr;
 196
 197     hr = IStream_Stat(stream, &statstg, STATFLAG_NONAME);
 198
 199     if (SUCCEEDED(hr)) return statstg.cbSize.QuadPart;
 200     else return -1;
 201 }
 202
 203 static int tiff_stream_map(thandle_t client_data, tdata_t *addr, toff_t *size)
 204 {
 205     /* Cannot mmap streams */
 206     return 0;
 207 }
 208
 209 static void tiff_stream_unmap(thandle_t client_data, tdata_t addr, toff_t size)
 210 {
 211     /* No need to ever do this, since we can't map things. */
 212 }
 213
 214 static TIFF* tiff_open_stream(IStream *stream, const char *mode)
 215 {
 216     LARGE_INTEGER zero;
 217
 218     zero.QuadPart = 0;
 219     IStream_Seek(stream, zero, STREAM_SEEK_SET, NULL);
 220
 221     return pTIFFClientOpen("<IStream object>", mode, stream, tiff_stream_read,
 222         tiff_stream_write, (void *)tiff_stream_seek, tiff_stream_close,
 223         (void *)tiff_stream_size, (void *)tiff_stream_map, (void *)tiff_stream_unmap);
 224 }
 225
 226 typedef struct {
 227     IWICBitmapDecoder IWICBitmapDecoder_iface;
 228     LONG ref;
 229     IStream *stream;
 230     CRITICAL_SECTION lock; /* Must be held when tiff is used or initiailzed is set */
 231     TIFF *tiff;
 232     BOOL initialized;
 233 } TiffDecoder;
 234
 235 typedef struct {
 236     const WICPixelFormatGUID *format;
 237     int bps;
 238     int samples;
 239     int bpp;
 240     int planar;
 241     int indexed;
 242     int reverse_bgr;
 243     int invert_grayscale;
 244     UINT width, height;
 245     UINT tile_width, tile_height;
 246     UINT tile_stride;
 247     UINT tile_size;
 248     int tiled;
 249     UINT tiles_across;
 250     UINT resolution_unit;
 251     float xres, yres;
 252 } tiff_decode_info;
 253
 254 typedef struct {
 255     IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
 256     IWICMetadataBlockReader IWICMetadataBlockReader_iface;
 257     LONG ref;
 258     TiffDecoder *parent;
 259     UINT index;
 260     tiff_decode_info decode_info;
 261     INT cached_tile_x, cached_tile_y;
 262     BYTE *cached_tile;
 263 } TiffFrameDecode;
 264
 265 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl;
 266 static const IWICMetadataBlockReaderVtbl TiffFrameDecode_BlockVtbl;
 267
 268 static inline TiffDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
 269 {
 270     return CONTAINING_RECORD(iface, TiffDecoder, IWICBitmapDecoder_iface);
 271 }
 272
 273 static inline TiffFrameDecode *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
 274 {
 275     return CONTAINING_RECORD(iface, TiffFrameDecode, IWICBitmapFrameDecode_iface);
 276 }
 277
 278 static inline TiffFrameDecode *impl_from_IWICMetadataBlockReader(IWICMetadataBlockReader *iface)
 279 {
 280     return CONTAINING_RECORD(iface, TiffFrameDecode, IWICMetadataBlockReader_iface);
 281 }
 282
 283 static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
 284 {
 285     uint16 photometric, bps, samples, planar;
 286     uint16 extra_sample_count, extra_sample, *extra_samples;
 287     int ret;
 288
 289     decode_info->indexed = 0;
 290     decode_info->reverse_bgr = 0;
 291     decode_info->invert_grayscale = 0;
 292     decode_info->tiled = 0;
 293
 294     ret = pTIFFGetField(tiff, TIFFTAG_PHOTOMETRIC, &photometric);
 295     if (!ret)
 296     {
 297         WARN("missing PhotometricInterpretation tag\n");
 298         return E_FAIL;
 299     }
 300
 301     ret = pTIFFGetField(tiff, TIFFTAG_BITSPERSAMPLE, &bps);
 302     if (!ret) bps = 1;
 303     decode_info->bps = bps;
 304
 305     ret = pTIFFGetField(tiff, TIFFTAG_SAMPLESPERPIXEL, &samples);
 306     if (!ret) samples = 1;
 307     decode_info->samples = samples;
 308
 309     if (samples == 1)
 310         planar = 1;
 311     else
 312     {
 313         ret = pTIFFGetField(tiff, TIFFTAG_PLANARCONFIG, &planar);
 314         if (!ret) planar = 1;
 315         if (planar != 1)
 316         {
 317             FIXME("unhandled planar configuration %u\n", planar);
 318             return E_FAIL;
 319         }
 320     }
 321     decode_info->planar = planar;
 322
 323     switch(photometric)
 324     {
 325     case 0: /* WhiteIsZero */
 326         decode_info->invert_grayscale = 1;
 327         /* fall through */
 328     case 1: /* BlackIsZero */
 329         if (samples != 1)
 330         {
 331             FIXME("unhandled grayscale sample count %u\n", samples);
 332             return E_FAIL;
 333         }
 334
 335         decode_info->bpp = bps;
 336         switch (bps)
 337         {
 338         case 1:
 339             decode_info->format = &GUID_WICPixelFormatBlackWhite;
 340             break;
 341         case 4:
 342             decode_info->format = &GUID_WICPixelFormat4bppGray;
 343             break;
 344         case 8:
 345             decode_info->format = &GUID_WICPixelFormat8bppGray;
 346             break;
 347         default:
 348             FIXME("unhandled greyscale bit count %u\n", bps);
 349             return E_FAIL;
 350         }
 351         break;
 352     case 2: /* RGB */
 353         decode_info->bpp = bps * samples;
 354
 355         if (samples == 4)
 356         {
 357             ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
 358             if (!ret)
 359             {
 360                 extra_sample_count = 1;
 361                 extra_sample = 0;
 362                 extra_samples = &extra_sample;
 363             }
 364         }
 365         else if (samples != 3)
 366         {
 367             FIXME("unhandled RGB sample count %u\n", samples);
 368             return E_FAIL;
 369         }
 370
 371         switch(bps)
 372         {
 373         case 8:
 374             decode_info->reverse_bgr = 1;
 375             if (samples == 3)
 376                 decode_info->format = &GUID_WICPixelFormat24bppBGR;
 377             else
 378                 switch(extra_samples[0])
 379                 {
 380                 case 1: /* Associated (pre-multiplied) alpha data */
 381                     decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
 382                     break;
 383                 case 0: /* Unspecified data */
 384                 case 2: /* Unassociated alpha data */
 385                     decode_info->format = &GUID_WICPixelFormat32bppBGRA;
 386                     break;
 387                 default:
 388                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 389                     return E_FAIL;
 390                 }
 391             break;
 392         case 16:
 393             if (samples == 3)
 394                 decode_info->format = &GUID_WICPixelFormat48bppRGB;
 395             else
 396                 switch(extra_samples[0])
 397                 {
 398                 case 1: /* Associated (pre-multiplied) alpha data */
 399                     decode_info->format = &GUID_WICPixelFormat64bppPRGBA;
 400                     break;
 401                 case 0: /* Unspecified data */
 402                 case 2: /* Unassociated alpha data */
 403                     decode_info->format = &GUID_WICPixelFormat64bppRGBA;
 404                     break;
 405                 default:
 406                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 407                     return E_FAIL;
 408                 }
 409             break;
 410         default:
 411             FIXME("unhandled RGB bit count %u\n", bps);
 412             return E_FAIL;
 413         }
 414         break;
 415     case 3: /* RGB Palette */
 416         if (samples != 1)
 417         {
 418             FIXME("unhandled indexed sample count %u\n", samples);
 419             return E_FAIL;
 420         }
 421
 422         decode_info->indexed = 1;
 423         decode_info->bpp = bps;
 424         switch (bps)
 425         {
 426         case 4:
 427             decode_info->format = &GUID_WICPixelFormat4bppIndexed;
 428             break;
 429         case 8:
 430             decode_info->format = &GUID_WICPixelFormat8bppIndexed;
 431             break;
 432         default:
 433             FIXME("unhandled indexed bit count %u\n", bps);
 434             return E_FAIL;
 435         }
 436         break;
 437     case 4: /* Transparency mask */
 438     case 5: /* CMYK */
 439     case 6: /* YCbCr */
 440     case 8: /* CIELab */
 441     default:
 442         FIXME("unhandled PhotometricInterpretation %u\n", photometric);
 443         return E_FAIL;
 444     }
 445
 446     ret = pTIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &decode_info->width);
 447     if (!ret)
 448     {
 449         WARN("missing image width\n");
 450         return E_FAIL;
 451     }
 452
 453     ret = pTIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &decode_info->height);
 454     if (!ret)
 455     {
 456         WARN("missing image length\n");
 457         return E_FAIL;
 458     }
 459
 460     if ((ret = pTIFFGetField(tiff, TIFFTAG_TILEWIDTH, &decode_info->tile_width)))
 461     {
 462         decode_info->tiled = 1;
 463
 464         ret = pTIFFGetField(tiff, TIFFTAG_TILELENGTH, &decode_info->tile_height);
 465         if (!ret)
 466         {
 467             WARN("missing tile height\n");
 468             return E_FAIL;
 469         }
 470
 471         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 472         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 473         decode_info->tiles_across = (decode_info->width + decode_info->tile_width - 1) / decode_info->tile_width;
 474     }
 475     else if ((ret = pTIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &decode_info->tile_height)))
 476     {
 477         if (decode_info->tile_height > decode_info->height)
 478             decode_info->tile_height = decode_info->height;
 479         decode_info->tile_width = decode_info->width;
 480         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 481         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 482     }
 483     else
 484     {
 485         /* Some broken TIFF files have a single strip and lack the RowsPerStrip tag */
 486         decode_info->tile_height = decode_info->height;
 487         decode_info->tile_width = decode_info->width;
 488         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 489         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 490     }
 491
 492     decode_info->resolution_unit = 0;
 493     pTIFFGetField(tiff, TIFFTAG_RESOLUTIONUNIT, &decode_info->resolution_unit);
 494     if (decode_info->resolution_unit != 0)
 495     {
 496         ret = pTIFFGetField(tiff, TIFFTAG_XRESOLUTION, &decode_info->xres);
 497         if (!ret)
 498         {
 499             WARN("missing X resolution\n");
 500             decode_info->resolution_unit = 0;
 501         }
 502
 503         ret = pTIFFGetField(tiff, TIFFTAG_YRESOLUTION, &decode_info->yres);
 504         if (!ret)
 505         {
 506             WARN("missing Y resolution\n");
 507             decode_info->resolution_unit = 0;
 508         }
 509     }
 510
 511     return S_OK;
 512 }
 513
 514 static HRESULT WINAPI TiffDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
 515     void **ppv)
 516 {
 517     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 518     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 519
 520     if (!ppv) return E_INVALIDARG;
 521
 522     if (IsEqualIID(&IID_IUnknown, iid) ||
 523         IsEqualIID(&IID_IWICBitmapDecoder, iid))
 524     {
 525         *ppv = &This->IWICBitmapDecoder_iface;
 526     }
 527     else
 528     {
 529         *ppv = NULL;
 530         return E_NOINTERFACE;
 531     }
 532
 533     IUnknown_AddRef((IUnknown*)*ppv);
 534     return S_OK;
 535 }
 536
 537 static ULONG WINAPI TiffDecoder_AddRef(IWICBitmapDecoder *iface)
 538 {
 539     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 540     ULONG ref = InterlockedIncrement(&This->ref);
 541
 542     TRACE("(%p) refcount=%u\n", iface, ref);
 543
 544     return ref;
 545 }
 546
 547 static ULONG WINAPI TiffDecoder_Release(IWICBitmapDecoder *iface)
 548 {
 549     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 550     ULONG ref = InterlockedDecrement(&This->ref);
 551
 552     TRACE("(%p) refcount=%u\n", iface, ref);
 553
 554     if (ref == 0)
 555     {
 556         if (This->tiff) pTIFFClose(This->tiff);
 557         if (This->stream) IStream_Release(This->stream);
 558         This->lock.DebugInfo->Spare[0] = 0;
 559         DeleteCriticalSection(&This->lock);
 560         HeapFree(GetProcessHeap(), 0, This);
 561     }
 562
 563     return ref;
 564 }
 565
 566 static HRESULT WINAPI TiffDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
 567     DWORD *capability)
 568 {
 569     HRESULT hr;
 570
 571     TRACE("(%p,%p,%p)\n", iface, stream, capability);
 572
 573     if (!stream || !capability) return E_INVALIDARG;
 574
 575     hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
 576     if (hr != S_OK) return hr;
 577
 578     *capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
 579                   WICBitmapDecoderCapabilityCanDecodeSomeImages |
 580                   WICBitmapDecoderCapabilityCanEnumerateMetadata;
 581     return S_OK;
 582 }
 583
 584 static HRESULT WINAPI TiffDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
 585     WICDecodeOptions cacheOptions)
 586 {
 587     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 588     TIFF *tiff;
 589     HRESULT hr=S_OK;
 590
 591     TRACE("(%p,%p,%x): stub\n", iface, pIStream, cacheOptions);
 592
 593     EnterCriticalSection(&This->lock);
 594
 595     if (This->initialized)
 596     {
 597         hr = WINCODEC_ERR_WRONGSTATE;
 598         goto exit;
 599     }
 600
 601     tiff = tiff_open_stream(pIStream, "r");
 602
 603     if (!tiff)
 604     {
 605         hr = E_FAIL;
 606         goto exit;
 607     }
 608
 609     This->tiff = tiff;
 610     This->stream = pIStream;
 611     IStream_AddRef(pIStream);
 612     This->initialized = TRUE;
 613
 614 exit:
 615     LeaveCriticalSection(&This->lock);
 616     return hr;
 617 }
 618
 619 static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
 620     GUID *pguidContainerFormat)
 621 {
 622     if (!pguidContainerFormat) return E_INVALIDARG;
 623
 624     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
 625     return S_OK;
 626 }
 627
 628 static HRESULT WINAPI TiffDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
 629     IWICBitmapDecoderInfo **ppIDecoderInfo)
 630 {
 631     HRESULT hr;
 632     IWICComponentInfo *compinfo;
 633
 634     TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
 635
 636     hr = CreateComponentInfo(&CLSID_WICTiffDecoder, &compinfo);
 637     if (FAILED(hr)) return hr;
 638
 639     hr = IWICComponentInfo_QueryInterface(compinfo, &IID_IWICBitmapDecoderInfo,
 640         (void**)ppIDecoderInfo);
 641
 642     IWICComponentInfo_Release(compinfo);
 643
 644     return hr;
 645 }
 646
 647 static HRESULT WINAPI TiffDecoder_CopyPalette(IWICBitmapDecoder *iface,
 648     IWICPalette *pIPalette)
 649 {
 650     FIXME("(%p,%p): stub\n", iface, pIPalette);
 651     return E_NOTIMPL;
 652 }
 653
 654 static HRESULT WINAPI TiffDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
 655     IWICMetadataQueryReader **ppIMetadataQueryReader)
 656 {
 657     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
 658     return E_NOTIMPL;
 659 }
 660
 661 static HRESULT WINAPI TiffDecoder_GetPreview(IWICBitmapDecoder *iface,
 662     IWICBitmapSource **ppIBitmapSource)
 663 {
 664     TRACE("(%p,%p)\n", iface, ppIBitmapSource);
 665
 666     if (!ppIBitmapSource) return E_INVALIDARG;
 667
 668     *ppIBitmapSource = NULL;
 669     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 670 }
 671
 672 static HRESULT WINAPI TiffDecoder_GetColorContexts(IWICBitmapDecoder *iface,
 673     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 674 {
 675     FIXME("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
 676     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 677 }
 678
 679 static HRESULT WINAPI TiffDecoder_GetThumbnail(IWICBitmapDecoder *iface,
 680     IWICBitmapSource **ppIThumbnail)
 681 {
 682     TRACE("(%p,%p)\n", iface, ppIThumbnail);
 683
 684     if (!ppIThumbnail) return E_INVALIDARG;
 685
 686     *ppIThumbnail = NULL;
 687     return WINCODEC_ERR_CODECNOTHUMBNAIL;
 688 }
 689
 690 static HRESULT WINAPI TiffDecoder_GetFrameCount(IWICBitmapDecoder *iface,
 691     UINT *pCount)
 692 {
 693     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 694
 695     if (!pCount) return E_INVALIDARG;
 696
 697     EnterCriticalSection(&This->lock);
 698     *pCount = This->tiff ? pTIFFNumberOfDirectories(This->tiff) : 0;
 699     LeaveCriticalSection(&This->lock);
 700
 701     TRACE("(%p) <-- %i\n", iface, *pCount);
 702
 703     return S_OK;
 704 }
 705
 706 static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
 707     UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
 708 {
 709     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 710     TiffFrameDecode *result;
 711     int res;
 712     tiff_decode_info decode_info;
 713     HRESULT hr;
 714
 715     TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
 716
 717     if (!This->tiff)
 718         return WINCODEC_ERR_FRAMEMISSING;
 719
 720     EnterCriticalSection(&This->lock);
 721     res = pTIFFSetDirectory(This->tiff, index);
 722     if (!res) hr = E_INVALIDARG;
 723     else hr = tiff_get_decode_info(This->tiff, &decode_info);
 724     LeaveCriticalSection(&This->lock);
 725
 726     if (SUCCEEDED(hr))
 727     {
 728         result = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffFrameDecode));
 729
 730         if (result)
 731         {
 732             result->IWICBitmapFrameDecode_iface.lpVtbl = &TiffFrameDecode_Vtbl;
 733             result->IWICMetadataBlockReader_iface.lpVtbl = &TiffFrameDecode_BlockVtbl;
 734             result->ref = 1;
 735             result->parent = This;
 736             result->index = index;
 737             result->decode_info = decode_info;
 738             result->cached_tile_x = -1;
 739             result->cached_tile = HeapAlloc(GetProcessHeap(), 0, decode_info.tile_size);
 740
 741             if (result->cached_tile)
 742                 *ppIBitmapFrame = &result->IWICBitmapFrameDecode_iface;
 743             else
 744             {
 745                 hr = E_OUTOFMEMORY;
 746                 HeapFree(GetProcessHeap(), 0, result);
 747             }
 748         }
 749         else hr = E_OUTOFMEMORY;
 750     }
 751
 752     if (FAILED(hr)) *ppIBitmapFrame = NULL;
 753
 754     return hr;
 755 }
 756
 757 static const IWICBitmapDecoderVtbl TiffDecoder_Vtbl = {
 758     TiffDecoder_QueryInterface,
 759     TiffDecoder_AddRef,
 760     TiffDecoder_Release,
 761     TiffDecoder_QueryCapability,
 762     TiffDecoder_Initialize,
 763     TiffDecoder_GetContainerFormat,
 764     TiffDecoder_GetDecoderInfo,
 765     TiffDecoder_CopyPalette,
 766     TiffDecoder_GetMetadataQueryReader,
 767     TiffDecoder_GetPreview,
 768     TiffDecoder_GetColorContexts,
 769     TiffDecoder_GetThumbnail,
 770     TiffDecoder_GetFrameCount,
 771     TiffDecoder_GetFrame
 772 };
 773
 774 static HRESULT WINAPI TiffFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
 775     void **ppv)
 776 {
 777     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 778     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 779
 780     if (!ppv) return E_INVALIDARG;
 781
 782     if (IsEqualIID(&IID_IUnknown, iid) ||
 783         IsEqualIID(&IID_IWICBitmapSource, iid) ||
 784         IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
 785     {
 786         *ppv = &This->IWICBitmapFrameDecode_iface;
 787     }
 788     else if (IsEqualIID(&IID_IWICMetadataBlockReader, iid))
 789     {
 790         *ppv = &This->IWICMetadataBlockReader_iface;
 791     }
 792     else
 793     {
 794         *ppv = NULL;
 795         return E_NOINTERFACE;
 796     }
 797
 798     IUnknown_AddRef((IUnknown*)*ppv);
 799     return S_OK;
 800 }
 801
 802 static ULONG WINAPI TiffFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
 803 {
 804     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 805     ULONG ref = InterlockedIncrement(&This->ref);
 806
 807     TRACE("(%p) refcount=%u\n", iface, ref);
 808
 809     return ref;
 810 }
 811
 812 static ULONG WINAPI TiffFrameDecode_Release(IWICBitmapFrameDecode *iface)
 813 {
 814     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 815     ULONG ref = InterlockedDecrement(&This->ref);
 816
 817     TRACE("(%p) refcount=%u\n", iface, ref);
 818
 819     if (ref == 0)
 820     {
 821         HeapFree(GetProcessHeap(), 0, This->cached_tile);
 822         HeapFree(GetProcessHeap(), 0, This);
 823     }
 824
 825     return ref;
 826 }
 827
 828 static HRESULT WINAPI TiffFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
 829     UINT *puiWidth, UINT *puiHeight)
 830 {
 831     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 832
 833     *puiWidth = This->decode_info.width;
 834     *puiHeight = This->decode_info.height;
 835
 836     TRACE("(%p) <-- %ux%u\n", iface, *puiWidth, *puiHeight);
 837
 838     return S_OK;
 839 }
 840
 841 static HRESULT WINAPI TiffFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
 842     WICPixelFormatGUID *pPixelFormat)
 843 {
 844     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 845
 846     memcpy(pPixelFormat, This->decode_info.format, sizeof(GUID));
 847
 848     TRACE("(%p) <-- %s\n", This, debugstr_guid(This->decode_info.format));
 849
 850     return S_OK;
 851 }
 852
 853 static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
 854     double *pDpiX, double *pDpiY)
 855 {
 856     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 857
 858     switch (This->decode_info.resolution_unit)
 859     {
 860     default:
 861         FIXME("unknown resolution unit %i\n", This->decode_info.resolution_unit);
 862         /* fall through */
 863     case 0: /* Not set */
 864         *pDpiX = *pDpiY = 96.0;
 865         break;
 866     case 1: /* Relative measurements */
 867         *pDpiX = 96.0;
 868         *pDpiY = 96.0 * This->decode_info.yres / This->decode_info.xres;
 869         break;
 870     case 2: /* Inch */
 871         *pDpiX = This->decode_info.xres;
 872         *pDpiY = This->decode_info.yres;
 873         break;
 874     case 3: /* Centimeter */
 875         *pDpiX = This->decode_info.xres / 2.54;
 876         *pDpiY = This->decode_info.yres / 2.54;
 877         break;
 878     }
 879
 880     TRACE("(%p) <-- %f,%f unit=%i\n", iface, *pDpiX, *pDpiY, This->decode_info.resolution_unit);
 881
 882     return S_OK;
 883 }
 884
 885 static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
 886     IWICPalette *pIPalette)
 887 {
 888     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 889     uint16 *red, *green, *blue;
 890     WICColor colors[256];
 891     int color_count, ret, i;
 892
 893     TRACE("(%p,%p)\n", iface, pIPalette);
 894
 895     color_count = 1<<This->decode_info.bps;
 896
 897     EnterCriticalSection(&This->parent->lock);
 898     ret = pTIFFGetField(This->parent->tiff, TIFFTAG_COLORMAP, &red, &green, &blue);
 899     LeaveCriticalSection(&This->parent->lock);
 900
 901     if (!ret)
 902     {
 903         WARN("Couldn't read color map\n");
 904         return WINCODEC_ERR_PALETTEUNAVAILABLE;
 905     }
 906
 907     for (i=0; i<color_count; i++)
 908     {
 909         colors[i] = 0xff000000 |
 910             ((red[i]<<8) & 0xff0000) |
 911             (green[i] & 0xff00) |
 912             ((blue[i]>>8) & 0xff);
 913     }
 914
 915     return IWICPalette_InitializeCustom(pIPalette, colors, color_count);
 916 }
 917
 918 static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)
 919 {
 920     HRESULT hr=S_OK;
 921     tsize_t ret;
 922     int swap_bytes;
 923
 924     swap_bytes = pTIFFIsByteSwapped(This->parent->tiff);
 925
 926     ret = pTIFFSetDirectory(This->parent->tiff, This->index);
 927
 928     if (ret == -1)
 929         hr = E_FAIL;
 930
 931     if (hr == S_OK)
 932     {
 933         if (This->decode_info.tiled)
 934         {
 935             ret = pTIFFReadEncodedTile(This->parent->tiff, tile_x + tile_y * This->decode_info.tiles_across, This->cached_tile, This->decode_info.tile_size);
 936         }
 937         else
 938         {
 939             ret = pTIFFReadEncodedStrip(This->parent->tiff, tile_y, This->cached_tile, This->decode_info.tile_size);
 940         }
 941
 942         if (ret == -1)
 943             hr = E_FAIL;
 944     }
 945
 946     if (hr == S_OK && This->decode_info.reverse_bgr)
 947     {
 948         if (This->decode_info.bps == 8)
 949         {
 950             UINT sample_count = This->decode_info.samples;
 951
 952             reverse_bgr8(sample_count, This->cached_tile, This->decode_info.tile_width,
 953                 This->decode_info.tile_height, This->decode_info.tile_width * sample_count);
 954         }
 955     }
 956
 957     if (hr == S_OK && swap_bytes && This->decode_info.bps > 8)
 958     {
 959         UINT row, i, samples_per_row;
 960         BYTE *sample, temp;
 961
 962         samples_per_row = This->decode_info.tile_width * This->decode_info.samples;
 963
 964         switch(This->decode_info.bps)
 965         {
 966         case 16:
 967             for (row=0; row<This->decode_info.tile_height; row++)
 968             {
 969                 sample = This->cached_tile + row * This->decode_info.tile_stride;
 970                 for (i=0; i<samples_per_row; i++)
 971                 {
 972                     temp = sample[1];
 973                     sample[1] = sample[0];
 974                     sample[0] = temp;
 975                     sample += 2;
 976                 }
 977             }
 978             break;
 979         default:
 980             ERR("unhandled bps for byte swap %u\n", This->decode_info.bps);
 981             return E_FAIL;
 982         }
 983     }
 984
 985     if (hr == S_OK && This->decode_info.invert_grayscale)
 986     {
 987         BYTE *byte, *end;
 988
 989         if (This->decode_info.samples != 1)
 990         {
 991             ERR("cannot invert grayscale image with %u samples\n", This->decode_info.samples);
 992             return E_FAIL;
 993         }
 994
 995         end = This->cached_tile+This->decode_info.tile_size;
 996
 997         for (byte = This->cached_tile; byte != end; byte++)
 998             *byte = ~(*byte);
 999     }
1000
1001     if (hr == S_OK)
1002     {
1003         This->cached_tile_x = tile_x;
1004         This->cached_tile_y = tile_y;
1005     }
1006
1007     return hr;
1008 }
1009
1010 static HRESULT WINAPI TiffFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
1011     const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
1012 {
1013     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1014     UINT min_tile_x, max_tile_x, min_tile_y, max_tile_y;
1015     UINT tile_x, tile_y;
1016     WICRect rc;
1017     HRESULT hr=S_OK;
1018     BYTE *dst_tilepos;
1019     UINT bytesperrow;
1020     WICRect rect;
1021
1022     TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
1023
1024     if (!prc)
1025     {
1026         rect.X = 0;
1027         rect.Y = 0;
1028         rect.Width = This->decode_info.width;
1029         rect.Height = This->decode_info.height;
1030         prc = &rect;
1031     }
1032     else
1033     {
1034         if (prc->X < 0 || prc->Y < 0 || prc->X+prc->Width > This->decode_info.width ||
1035             prc->Y+prc->Height > This->decode_info.height)
1036             return E_INVALIDARG;
1037     }
1038
1039     bytesperrow = ((This->decode_info.bpp * prc->Width)+7)/8;
1040
1041     if (cbStride < bytesperrow)
1042         return E_INVALIDARG;
1043
1044     if ((cbStride * prc->Height) > cbBufferSize)
1045         return E_INVALIDARG;
1046
1047     min_tile_x = prc->X / This->decode_info.tile_width;
1048     min_tile_y = prc->Y / This->decode_info.tile_height;
1049     max_tile_x = (prc->X+prc->Width-1) / This->decode_info.tile_width;
1050     max_tile_y = (prc->Y+prc->Height-1) / This->decode_info.tile_height;
1051
1052     EnterCriticalSection(&This->parent->lock);
1053
1054     for (tile_x=min_tile_x; tile_x <= max_tile_x; tile_x++)
1055     {
1056         for (tile_y=min_tile_y; tile_y <= max_tile_y; tile_y++)
1057         {
1058             if (tile_x != This->cached_tile_x || tile_y != This->cached_tile_y)
1059             {
1060                 hr = TiffFrameDecode_ReadTile(This, tile_x, tile_y);
1061             }
1062
1063             if (SUCCEEDED(hr))
1064             {
1065                 if (prc->X < tile_x * This->decode_info.tile_width)
1066                     rc.X = 0;
1067                 else
1068                     rc.X = prc->X - tile_x * This->decode_info.tile_width;
1069
1070                 if (prc->Y < tile_y * This->decode_info.tile_height)
1071                     rc.Y = 0;
1072                 else
1073                     rc.Y = prc->Y - tile_y * This->decode_info.tile_height;
1074
1075                 if (prc->X+prc->Width > (tile_x+1) * This->decode_info.tile_width)
1076                     rc.Width = This->decode_info.tile_width - rc.X;
1077                 else if (prc->X < tile_x * This->decode_info.tile_width)
1078                     rc.Width = prc->Width + prc->X - tile_x * This->decode_info.tile_width;
1079                 else
1080                     rc.Width = prc->Width;
1081
1082                 if (prc->Y+prc->Height > (tile_y+1) * This->decode_info.tile_height)
1083                     rc.Height = This->decode_info.tile_height - rc.Y;
1084                 else if (prc->Y < tile_y * This->decode_info.tile_height)
1085                     rc.Height = prc->Height + prc->Y - tile_y * This->decode_info.tile_height;
1086                 else
1087                     rc.Height = prc->Height;
1088
1089                 dst_tilepos = pbBuffer + (cbStride * ((rc.Y + tile_y * This->decode_info.tile_height) - prc->Y)) +
1090                     ((This->decode_info.bpp * ((rc.X + tile_x * This->decode_info.tile_width) - prc->X) + 7) / 8);
1091
1092                 hr = copy_pixels(This->decode_info.bpp, This->cached_tile,
1093                     This->decode_info.tile_width, This->decode_info.tile_height, This->decode_info.tile_stride,
1094                     &rc, cbStride, cbBufferSize, dst_tilepos);
1095             }
1096
1097             if (FAILED(hr))
1098             {
1099                 LeaveCriticalSection(&This->parent->lock);
1100                 TRACE("<-- 0x%x\n", hr);
1101                 return hr;
1102             }
1103         }
1104     }
1105
1106     LeaveCriticalSection(&This->parent->lock);
1107
1108     return S_OK;
1109 }
1110
1111 static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
1112     IWICMetadataQueryReader **ppIMetadataQueryReader)
1113 {
1114     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
1115     return E_NOTIMPL;
1116 }
1117
1118 static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
1119     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
1120 {
1121     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1122     const BYTE *profile;
1123     UINT len;
1124     HRESULT hr;
1125
1126     TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
1127
1128     EnterCriticalSection(&This->parent->lock);
1129
1130     if (pTIFFGetField(This->parent->tiff, TIFFTAG_ICCPROFILE, &len, &profile))
1131     {
1132         if (cCount && ppIColorContexts)
1133         {
1134             hr = IWICColorContext_InitializeFromMemory(*ppIColorContexts, profile, len);
1135             if (FAILED(hr))
1136             {
1137                 LeaveCriticalSection(&This->parent->lock);
1138                 return hr;
1139             }
1140         }
1141         *pcActualCount = 1;
1142     }
1143     else
1144         *pcActualCount = 0;
1145
1146     LeaveCriticalSection(&This->parent->lock);
1147
1148     return S_OK;
1149 }
1150
1151 static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
1152     IWICBitmapSource **ppIThumbnail)
1153 {
1154     TRACE("(%p,%p)\n", iface, ppIThumbnail);
1155
1156     if (!ppIThumbnail) return E_INVALIDARG;
1157
1158     *ppIThumbnail = NULL;
1159     return WINCODEC_ERR_CODECNOTHUMBNAIL;
1160 }
1161
1162 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl = {
1163     TiffFrameDecode_QueryInterface,
1164     TiffFrameDecode_AddRef,
1165     TiffFrameDecode_Release,
1166     TiffFrameDecode_GetSize,
1167     TiffFrameDecode_GetPixelFormat,
1168     TiffFrameDecode_GetResolution,
1169     TiffFrameDecode_CopyPalette,
1170     TiffFrameDecode_CopyPixels,
1171     TiffFrameDecode_GetMetadataQueryReader,
1172     TiffFrameDecode_GetColorContexts,
1173     TiffFrameDecode_GetThumbnail
1174 };
1175
1176 static HRESULT WINAPI TiffFrameDecode_Block_QueryInterface(IWICMetadataBlockReader *iface,
1177     REFIID iid, void **ppv)
1178 {
1179     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1180     return IWICBitmapFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
1181 }
1182
1183 static ULONG WINAPI TiffFrameDecode_Block_AddRef(IWICMetadataBlockReader *iface)
1184 {
1185     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1186     return IWICBitmapFrameDecode_AddRef(&This->IWICBitmapFrameDecode_iface);
1187 }
1188
1189 static ULONG WINAPI TiffFrameDecode_Block_Release(IWICMetadataBlockReader *iface)
1190 {
1191     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1192     return IWICBitmapFrameDecode_Release(&This->IWICBitmapFrameDecode_iface);
1193 }
1194
1195 static HRESULT WINAPI TiffFrameDecode_Block_GetContainerFormat(IWICMetadataBlockReader *iface,
1196     GUID *guid)
1197 {
1198     TRACE("(%p,%p)\n", iface, guid);
1199
1200     if (!guid) return E_INVALIDARG;
1201
1202     *guid = GUID_ContainerFormatTiff;
1203     return S_OK;
1204 }
1205
1206 static HRESULT WINAPI TiffFrameDecode_Block_GetCount(IWICMetadataBlockReader *iface,
1207     UINT *count)
1208 {
1209     TRACE("%p,%p\n", iface, count);
1210
1211     if (!count) return E_INVALIDARG;
1212
1213     *count = 1;
1214     return S_OK;
1215 }
1216
1217 static HRESULT create_metadata_reader(TiffFrameDecode *This, IWICMetadataReader **reader)
1218 {
1219     HRESULT hr;
1220     LARGE_INTEGER dir_offset;
1221     IWICMetadataReader *metadata_reader;
1222     IWICPersistStream *persist;
1223
1224     /* FIXME: Use IWICComponentFactory_CreateMetadataReader once it's implemented */
1225
1226     hr = IfdMetadataReader_CreateInstance(&IID_IWICMetadataReader, (void **)&metadata_reader);
1227     if (FAILED(hr)) return hr;
1228
1229     hr = IWICMetadataReader_QueryInterface(metadata_reader, &IID_IWICPersistStream, (void **)&persist);
1230     if (FAILED(hr))
1231     {
1232         IWICMetadataReader_Release(metadata_reader);
1233         return hr;
1234     }
1235
1236     EnterCriticalSection(&This->parent->lock);
1237
1238     dir_offset.QuadPart = pTIFFCurrentDirOffset(This->parent->tiff);
1239     hr = IStream_Seek(This->parent->stream, dir_offset, STREAM_SEEK_SET, NULL);
1240     if (SUCCEEDED(hr))
1241     {
1242         BOOL byte_swapped = pTIFFIsByteSwapped(This->parent->tiff);
1243 #ifdef WORDS_BIGENDIAN
1244         DWORD persist_options = byte_swapped ? WICPersistOptionsLittleEndian : WICPersistOptionsBigEndian;
1245 #else
1246         DWORD persist_options = byte_swapped ? WICPersistOptionsBigEndian : WICPersistOptionsLittleEndian;
1247 #endif
1248         persist_options |= WICPersistOptionsNoCacheStream;
1249         hr = IWICPersistStream_LoadEx(persist, This->parent->stream, NULL, persist_options);
1250         if (FAILED(hr))
1251             ERR("IWICPersistStream_LoadEx error %#x\n", hr);
1252     }
1253
1254     LeaveCriticalSection(&This->parent->lock);
1255
1256     IWICPersistStream_Release(persist);
1257
1258     if (FAILED(hr))
1259     {
1260         IWICMetadataReader_Release(metadata_reader);
1261         return hr;
1262     }
1263
1264     *reader = metadata_reader;
1265     return S_OK;
1266 }
1267
1268 static HRESULT WINAPI TiffFrameDecode_Block_GetReaderByIndex(IWICMetadataBlockReader *iface,
1269     UINT index, IWICMetadataReader **reader)
1270 {
1271     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1272
1273     TRACE("(%p,%u,%p)\n", iface, index, reader);
1274
1275     if (!reader || index != 0) return E_INVALIDARG;
1276
1277     return create_metadata_reader(This, reader);
1278 }
1279
1280 static HRESULT WINAPI TiffFrameDecode_Block_GetEnumerator(IWICMetadataBlockReader *iface,
1281     IEnumUnknown **enum_metadata)
1282 {
1283     FIXME("(%p,%p): stub\n", iface, enum_metadata);
1284     return E_NOTIMPL;
1285 }
1286
1287 static const IWICMetadataBlockReaderVtbl TiffFrameDecode_BlockVtbl =
1288 {
1289     TiffFrameDecode_Block_QueryInterface,
1290     TiffFrameDecode_Block_AddRef,
1291     TiffFrameDecode_Block_Release,
1292     TiffFrameDecode_Block_GetContainerFormat,
1293     TiffFrameDecode_Block_GetCount,
1294     TiffFrameDecode_Block_GetReaderByIndex,
1295     TiffFrameDecode_Block_GetEnumerator
1296 };
1297
1298 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
1299 {
1300     HRESULT ret;
1301     TiffDecoder *This;
1302
1303     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
1304
1305     *ppv = NULL;
1306
1307     if (!load_libtiff())
1308     {
1309         ERR("Failed reading TIFF because unable to load %s\n",SONAME_LIBTIFF);
1310         return E_FAIL;
1311     }
1312
1313     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffDecoder));
1314     if (!This) return E_OUTOFMEMORY;
1315
1316     This->IWICBitmapDecoder_iface.lpVtbl = &TiffDecoder_Vtbl;
1317     This->ref = 1;
1318     This->stream = NULL;
1319     InitializeCriticalSection(&This->lock);
1320     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffDecoder.lock");
1321     This->tiff = NULL;
1322     This->initialized = FALSE;
1323
1324     ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
1325     IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
1326
1327     return ret;
1328 }
1329
1330 struct tiff_encode_format {
1331     const WICPixelFormatGUID *guid;
1332     int photometric;
1333     int bps;
1334     int samples;
1335     int bpp;
1336     int extra_sample;
1337     int extra_sample_type;
1338     int reverse_bgr;
1339 };
1340
1341 static const struct tiff_encode_format formats[] = {
1342     {&GUID_WICPixelFormat24bppBGR, 2, 8, 3, 24, 0, 0, 1},
1343     {&GUID_WICPixelFormat24bppRGB, 2, 8, 3, 24, 0, 0, 0},
1344     {&GUID_WICPixelFormatBlackWhite, 1, 1, 1, 1, 0, 0, 0},
1345     {&GUID_WICPixelFormat4bppGray, 1, 4, 1, 4, 0, 0, 0},
1346     {&GUID_WICPixelFormat8bppGray, 1, 8, 1, 8, 0, 0, 0},
1347     {&GUID_WICPixelFormat32bppBGRA, 2, 8, 4, 32, 1, 2, 1},
1348     {&GUID_WICPixelFormat32bppPBGRA, 2, 8, 4, 32, 1, 1, 1},
1349     {&GUID_WICPixelFormat48bppRGB, 2, 16, 3, 48, 0, 0, 0},
1350     {&GUID_WICPixelFormat64bppRGBA, 2, 16, 4, 64, 1, 2, 0},
1351     {&GUID_WICPixelFormat64bppPRGBA, 2, 16, 4, 64, 1, 1, 0},
1352     {0}
1353 };
1354
1355 typedef struct TiffEncoder {
1356     IWICBitmapEncoder IWICBitmapEncoder_iface;
1357     LONG ref;
1358     IStream *stream;
1359     CRITICAL_SECTION lock; /* Must be held when tiff is used or fields below are set */
1360     TIFF *tiff;
1361     BOOL initialized;
1362     BOOL committed;
1363     ULONG num_frames;
1364     ULONG num_frames_committed;
1365 } TiffEncoder;
1366
1367 static inline TiffEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
1368 {
1369     return CONTAINING_RECORD(iface, TiffEncoder, IWICBitmapEncoder_iface);
1370 }
1371
1372 typedef struct TiffFrameEncode {
1373     IWICBitmapFrameEncode IWICBitmapFrameEncode_iface;
1374     LONG ref;
1375     TiffEncoder *parent;
1376     /* fields below are protected by parent->lock */
1377     BOOL initialized;
1378     BOOL info_written;
1379     BOOL committed;
1380     const struct tiff_encode_format *format;
1381     UINT width, height;
1382     double xres, yres;
1383     UINT lines_written;
1384 } TiffFrameEncode;
1385
1386 static inline TiffFrameEncode *impl_from_IWICBitmapFrameEncode(IWICBitmapFrameEncode *iface)
1387 {
1388     return CONTAINING_RECORD(iface, TiffFrameEncode, IWICBitmapFrameEncode_iface);
1389 }
1390
1391 static HRESULT WINAPI TiffFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
1392     void **ppv)
1393 {
1394     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1395     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1396
1397     if (!ppv) return E_INVALIDARG;
1398
1399     if (IsEqualIID(&IID_IUnknown, iid) ||
1400         IsEqualIID(&IID_IWICBitmapFrameEncode, iid))
1401     {
1402         *ppv = &This->IWICBitmapFrameEncode_iface;
1403     }
1404     else
1405     {
1406         *ppv = NULL;
1407         return E_NOINTERFACE;
1408     }
1409
1410     IUnknown_AddRef((IUnknown*)*ppv);
1411     return S_OK;
1412 }
1413
1414 static ULONG WINAPI TiffFrameEncode_AddRef(IWICBitmapFrameEncode *iface)
1415 {
1416     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1417     ULONG ref = InterlockedIncrement(&This->ref);
1418
1419     TRACE("(%p) refcount=%u\n", iface, ref);
1420
1421     return ref;
1422 }
1423
1424 static ULONG WINAPI TiffFrameEncode_Release(IWICBitmapFrameEncode *iface)
1425 {
1426     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1427     ULONG ref = InterlockedDecrement(&This->ref);
1428
1429     TRACE("(%p) refcount=%u\n", iface, ref);
1430
1431     if (ref == 0)
1432     {
1433         IWICBitmapEncoder_Release(&This->parent->IWICBitmapEncoder_iface);
1434         HeapFree(GetProcessHeap(), 0, This);
1435     }
1436
1437     return ref;
1438 }
1439
1440 static HRESULT WINAPI TiffFrameEncode_Initialize(IWICBitmapFrameEncode *iface,
1441     IPropertyBag2 *pIEncoderOptions)
1442 {
1443     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1444     TRACE("(%p,%p)\n", iface, pIEncoderOptions);
1445
1446     EnterCriticalSection(&This->parent->lock);
1447
1448     if (This->initialized)
1449     {
1450         LeaveCriticalSection(&This->parent->lock);
1451         return WINCODEC_ERR_WRONGSTATE;
1452     }
1453
1454     This->initialized = TRUE;
1455
1456     LeaveCriticalSection(&This->parent->lock);
1457
1458     return S_OK;
1459 }
1460
1461 static HRESULT WINAPI TiffFrameEncode_SetSize(IWICBitmapFrameEncode *iface,
1462     UINT uiWidth, UINT uiHeight)
1463 {
1464     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1465     TRACE("(%p,%u,%u)\n", iface, uiWidth, uiHeight);
1466
1467     EnterCriticalSection(&This->parent->lock);
1468
1469     if (!This->initialized || This->info_written)
1470     {
1471         LeaveCriticalSection(&This->parent->lock);
1472         return WINCODEC_ERR_WRONGSTATE;
1473     }
1474
1475     This->width = uiWidth;
1476     This->height = uiHeight;
1477
1478     LeaveCriticalSection(&This->parent->lock);
1479
1480     return S_OK;
1481 }
1482
1483 static HRESULT WINAPI TiffFrameEncode_SetResolution(IWICBitmapFrameEncode *iface,
1484     double dpiX, double dpiY)
1485 {
1486     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1487     TRACE("(%p,%0.2f,%0.2f)\n", iface, dpiX, dpiY);
1488
1489     EnterCriticalSection(&This->parent->lock);
1490
1491     if (!This->initialized || This->info_written)
1492     {
1493         LeaveCriticalSection(&This->parent->lock);
1494         return WINCODEC_ERR_WRONGSTATE;
1495     }
1496
1497     This->xres = dpiX;
1498     This->yres = dpiY;
1499
1500     LeaveCriticalSection(&This->parent->lock);
1501
1502     return S_OK;
1503 }
1504
1505 static HRESULT WINAPI TiffFrameEncode_SetPixelFormat(IWICBitmapFrameEncode *iface,
1506     WICPixelFormatGUID *pPixelFormat)
1507 {
1508     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1509     int i;
1510
1511     TRACE("(%p,%s)\n", iface, debugstr_guid(pPixelFormat));
1512
1513     EnterCriticalSection(&This->parent->lock);
1514
1515     if (!This->initialized || This->info_written)
1516     {
1517         LeaveCriticalSection(&This->parent->lock);
1518         return WINCODEC_ERR_WRONGSTATE;
1519     }
1520
1521     for (i=0; formats[i].guid; i++)
1522     {
1523         if (memcmp(formats[i].guid, pPixelFormat, sizeof(GUID)) == 0)
1524             break;
1525     }
1526
1527     if (!formats[i].guid) i = 0;
1528
1529     This->format = &formats[i];
1530     memcpy(pPixelFormat, This->format->guid, sizeof(GUID));
1531
1532     LeaveCriticalSection(&This->parent->lock);
1533
1534     return S_OK;
1535 }
1536
1537 static HRESULT WINAPI TiffFrameEncode_SetColorContexts(IWICBitmapFrameEncode *iface,
1538     UINT cCount, IWICColorContext **ppIColorContext)
1539 {
1540     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
1541     return E_NOTIMPL;
1542 }
1543
1544 static HRESULT WINAPI TiffFrameEncode_SetPalette(IWICBitmapFrameEncode *iface,
1545     IWICPalette *pIPalette)
1546 {
1547     FIXME("(%p,%p): stub\n", iface, pIPalette);
1548     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1549 }
1550
1551 static HRESULT WINAPI TiffFrameEncode_SetThumbnail(IWICBitmapFrameEncode *iface,
1552     IWICBitmapSource *pIThumbnail)
1553 {
1554     FIXME("(%p,%p): stub\n", iface, pIThumbnail);
1555     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1556 }
1557
1558 static HRESULT WINAPI TiffFrameEncode_WritePixels(IWICBitmapFrameEncode *iface,
1559     UINT lineCount, UINT cbStride, UINT cbBufferSize, BYTE *pbPixels)
1560 {
1561     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1562     BYTE *row_data, *swapped_data = NULL;
1563     UINT i, j, line_size;
1564
1565     TRACE("(%p,%u,%u,%u,%p)\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
1566
1567     EnterCriticalSection(&This->parent->lock);
1568
1569     if (!This->initialized || !This->width || !This->height || !This->format)
1570     {
1571         LeaveCriticalSection(&This->parent->lock);
1572         return WINCODEC_ERR_WRONGSTATE;
1573     }
1574
1575     if (lineCount == 0 || lineCount + This->lines_written > This->height)
1576     {
1577         LeaveCriticalSection(&This->parent->lock);
1578         return E_INVALIDARG;
1579     }
1580
1581     line_size = ((This->width * This->format->bpp)+7)/8;
1582
1583     if (This->format->reverse_bgr)
1584     {
1585         swapped_data = HeapAlloc(GetProcessHeap(), 0, line_size);
1586         if (!swapped_data)
1587         {
1588             LeaveCriticalSection(&This->parent->lock);
1589             return E_OUTOFMEMORY;
1590         }
1591     }
1592
1593     if (!This->info_written)
1594     {
1595         pTIFFSetField(This->parent->tiff, TIFFTAG_PHOTOMETRIC, (uint16)This->format->photometric);
1596         pTIFFSetField(This->parent->tiff, TIFFTAG_PLANARCONFIG, (uint16)1);
1597         pTIFFSetField(This->parent->tiff, TIFFTAG_BITSPERSAMPLE, (uint16)This->format->bps);
1598         pTIFFSetField(This->parent->tiff, TIFFTAG_SAMPLESPERPIXEL, (uint16)This->format->samples);
1599
1600         if (This->format->extra_sample)
1601         {
1602             uint16 extra_samples;
1603             extra_samples = This->format->extra_sample_type;
1604
1605             pTIFFSetField(This->parent->tiff, TIFFTAG_EXTRASAMPLES, (uint16)1, &extra_samples);
1606         }
1607
1608         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGEWIDTH, (uint32)This->width);
1609         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGELENGTH, (uint32)This->height);
1610
1611         if (This->xres != 0.0 && This->yres != 0.0)
1612         {
1613             pTIFFSetField(This->parent->tiff, TIFFTAG_RESOLUTIONUNIT, (uint16)2); /* Inch */
1614             pTIFFSetField(This->parent->tiff, TIFFTAG_XRESOLUTION, (float)This->xres);
1615             pTIFFSetField(This->parent->tiff, TIFFTAG_YRESOLUTION, (float)This->yres);
1616         }
1617
1618         This->info_written = TRUE;
1619     }
1620
1621     for (i=0; i<lineCount; i++)
1622     {
1623         row_data = pbPixels + i * cbStride;
1624
1625         if (This->format->reverse_bgr && This->format->bps == 8)
1626         {
1627             memcpy(swapped_data, row_data, line_size);
1628             for (j=0; j<line_size; j += This->format->samples)
1629             {
1630                 BYTE temp;
1631                 temp = swapped_data[j];
1632                 swapped_data[j] = swapped_data[j+2];
1633                 swapped_data[j+2] = temp;
1634             }
1635             row_data = swapped_data;
1636         }
1637
1638         pTIFFWriteScanline(This->parent->tiff, (tdata_t)row_data, i+This->lines_written, 0);
1639     }
1640
1641     This->lines_written += lineCount;
1642
1643     LeaveCriticalSection(&This->parent->lock);
1644
1645     HeapFree(GetProcessHeap(), 0, swapped_data);
1646
1647     return S_OK;
1648 }
1649
1650 static HRESULT WINAPI TiffFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
1651     IWICBitmapSource *pIBitmapSource, WICRect *prc)
1652 {
1653     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1654     HRESULT hr;
1655
1656     TRACE("(%p,%p,%p)\n", iface, pIBitmapSource, prc);
1657
1658     if (!This->initialized)
1659         return WINCODEC_ERR_WRONGSTATE;
1660
1661     hr = configure_write_source(iface, pIBitmapSource, prc,
1662         This->format ? This->format->guid : NULL, This->width, This->height,
1663         This->xres, This->yres);
1664
1665     if (SUCCEEDED(hr))
1666     {
1667         hr = write_source(iface, pIBitmapSource, prc,
1668             This->format->guid, This->format->bpp, This->width, This->height);
1669     }
1670
1671     return hr;
1672 }
1673
1674 static HRESULT WINAPI TiffFrameEncode_Commit(IWICBitmapFrameEncode *iface)
1675 {
1676     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1677
1678     TRACE("(%p)\n", iface);
1679
1680     EnterCriticalSection(&This->parent->lock);
1681
1682     if (!This->info_written || This->lines_written != This->height || This->committed)
1683     {
1684         LeaveCriticalSection(&This->parent->lock);
1685         return WINCODEC_ERR_WRONGSTATE;
1686     }
1687
1688     /* libtiff will commit the data when creating a new frame or closing the file */
1689
1690     This->committed = TRUE;
1691     This->parent->num_frames_committed++;
1692
1693     LeaveCriticalSection(&This->parent->lock);
1694
1695     return S_OK;
1696 }
1697
1698 static HRESULT WINAPI TiffFrameEncode_GetMetadataQueryWriter(IWICBitmapFrameEncode *iface,
1699     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
1700 {
1701     FIXME("(%p, %p): stub\n", iface, ppIMetadataQueryWriter);
1702     return E_NOTIMPL;
1703 }
1704
1705 static const IWICBitmapFrameEncodeVtbl TiffFrameEncode_Vtbl = {
1706     TiffFrameEncode_QueryInterface,
1707     TiffFrameEncode_AddRef,
1708     TiffFrameEncode_Release,
1709     TiffFrameEncode_Initialize,
1710     TiffFrameEncode_SetSize,
1711     TiffFrameEncode_SetResolution,
1712     TiffFrameEncode_SetPixelFormat,
1713     TiffFrameEncode_SetColorContexts,
1714     TiffFrameEncode_SetPalette,
1715     TiffFrameEncode_SetThumbnail,
1716     TiffFrameEncode_WritePixels,
1717     TiffFrameEncode_WriteSource,
1718     TiffFrameEncode_Commit,
1719     TiffFrameEncode_GetMetadataQueryWriter
1720 };
1721
1722 static HRESULT WINAPI TiffEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
1723     void **ppv)
1724 {
1725     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1726     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1727
1728     if (!ppv) return E_INVALIDARG;
1729
1730     if (IsEqualIID(&IID_IUnknown, iid) ||
1731         IsEqualIID(&IID_IWICBitmapEncoder, iid))
1732     {
1733         *ppv = &This->IWICBitmapEncoder_iface;
1734     }
1735     else
1736     {
1737         *ppv = NULL;
1738         return E_NOINTERFACE;
1739     }
1740
1741     IUnknown_AddRef((IUnknown*)*ppv);
1742     return S_OK;
1743 }
1744
1745 static ULONG WINAPI TiffEncoder_AddRef(IWICBitmapEncoder *iface)
1746 {
1747     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1748     ULONG ref = InterlockedIncrement(&This->ref);
1749
1750     TRACE("(%p) refcount=%u\n", iface, ref);
1751
1752     return ref;
1753 }
1754
1755 static ULONG WINAPI TiffEncoder_Release(IWICBitmapEncoder *iface)
1756 {
1757     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1758     ULONG ref = InterlockedDecrement(&This->ref);
1759
1760     TRACE("(%p) refcount=%u\n", iface, ref);
1761
1762     if (ref == 0)
1763     {
1764         if (This->tiff) pTIFFClose(This->tiff);
1765         if (This->stream) IStream_Release(This->stream);
1766         This->lock.DebugInfo->Spare[0] = 0;
1767         DeleteCriticalSection(&This->lock);
1768         HeapFree(GetProcessHeap(), 0, This);
1769     }
1770
1771     return ref;
1772 }
1773
1774 static HRESULT WINAPI TiffEncoder_Initialize(IWICBitmapEncoder *iface,
1775     IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
1776 {
1777     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1778     TIFF *tiff;
1779     HRESULT hr=S_OK;
1780
1781     TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOption);
1782
1783     EnterCriticalSection(&This->lock);
1784
1785     if (This->initialized || This->committed)
1786     {
1787         hr = WINCODEC_ERR_WRONGSTATE;
1788         goto exit;
1789     }
1790
1791     tiff = tiff_open_stream(pIStream, "w");
1792
1793     if (!tiff)
1794     {
1795         hr = E_FAIL;
1796         goto exit;
1797     }
1798
1799     This->tiff = tiff;
1800     This->stream = pIStream;
1801     IStream_AddRef(pIStream);
1802     This->initialized = TRUE;
1803
1804 exit:
1805     LeaveCriticalSection(&This->lock);
1806     return hr;
1807 }
1808
1809 static HRESULT WINAPI TiffEncoder_GetContainerFormat(IWICBitmapEncoder *iface,
1810     GUID *pguidContainerFormat)
1811 {
1812     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
1813     return S_OK;
1814 }
1815
1816 static HRESULT WINAPI TiffEncoder_GetEncoderInfo(IWICBitmapEncoder *iface,
1817     IWICBitmapEncoderInfo **ppIEncoderInfo)
1818 {
1819     FIXME("(%p,%p): stub\n", iface, ppIEncoderInfo);
1820     return E_NOTIMPL;
1821 }
1822
1823 static HRESULT WINAPI TiffEncoder_SetColorContexts(IWICBitmapEncoder *iface,
1824     UINT cCount, IWICColorContext **ppIColorContext)
1825 {
1826     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
1827     return E_NOTIMPL;
1828 }
1829
1830 static HRESULT WINAPI TiffEncoder_SetPalette(IWICBitmapEncoder *iface, IWICPalette *pIPalette)
1831 {
1832     TRACE("(%p,%p)\n", iface, pIPalette);
1833     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1834 }
1835
1836 static HRESULT WINAPI TiffEncoder_SetThumbnail(IWICBitmapEncoder *iface, IWICBitmapSource *pIThumbnail)
1837 {
1838     TRACE("(%p,%p)\n", iface, pIThumbnail);
1839     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1840 }
1841
1842 static HRESULT WINAPI TiffEncoder_SetPreview(IWICBitmapEncoder *iface, IWICBitmapSource *pIPreview)
1843 {
1844     TRACE("(%p,%p)\n", iface, pIPreview);
1845     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1846 }
1847
1848 static HRESULT WINAPI TiffEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
1849     IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
1850 {
1851     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1852     TiffFrameEncode *result;
1853
1854     HRESULT hr=S_OK;
1855
1856     TRACE("(%p,%p,%p)\n", iface, ppIFrameEncode, ppIEncoderOptions);
1857
1858     EnterCriticalSection(&This->lock);
1859
1860     if (!This->initialized || This->committed)
1861     {
1862         hr = WINCODEC_ERR_WRONGSTATE;
1863     }
1864     else if (This->num_frames != This->num_frames_committed)
1865     {
1866         FIXME("New frame created before previous frame was committed\n");
1867         hr = E_FAIL;
1868     }
1869
1870     if (SUCCEEDED(hr))
1871     {
1872         PROPBAG2 opts[2]= {{0}};
1873         opts[0].pstrName = (LPOLESTR)wszTiffCompressionMethod;
1874         opts[0].vt = VT_UI1;
1875         opts[0].dwType = PROPBAG2_TYPE_DATA;
1876
1877         opts[1].pstrName = (LPOLESTR)wszCompressionQuality;
1878         opts[1].vt = VT_R4;
1879         opts[1].dwType = PROPBAG2_TYPE_DATA;
1880
1881         hr = CreatePropertyBag2(opts, 2, ppIEncoderOptions);
1882
1883         if (SUCCEEDED(hr))
1884         {
1885             VARIANT v;
1886             VariantInit(&v);
1887             V_VT(&v) = VT_UI1;
1888             V_UNION(&v, bVal) = WICTiffCompressionDontCare;
1889             hr = IPropertyBag2_Write(*ppIEncoderOptions, 1, opts, &v);
1890             VariantClear(&v);
1891             if (FAILED(hr))
1892             {
1893                 IPropertyBag2_Release(*ppIEncoderOptions);
1894                 *ppIEncoderOptions = NULL;
1895             }
1896         }
1897     }
1898
1899     if (SUCCEEDED(hr))
1900     {
1901         result = HeapAlloc(GetProcessHeap(), 0, sizeof(*result));
1902
1903         if (result)
1904         {
1905             result->IWICBitmapFrameEncode_iface.lpVtbl = &TiffFrameEncode_Vtbl;
1906             result->ref = 1;
1907             result->parent = This;
1908             result->initialized = FALSE;
1909             result->info_written = FALSE;
1910             result->committed = FALSE;
1911             result->format = NULL;
1912             result->width = 0;
1913             result->height = 0;
1914             result->xres = 0.0;
1915             result->yres = 0.0;
1916             result->lines_written = 0;
1917
1918             IWICBitmapEncoder_AddRef(iface);
1919             *ppIFrameEncode = &result->IWICBitmapFrameEncode_iface;
1920
1921             if (This->num_frames != 0)
1922                 pTIFFWriteDirectory(This->tiff);
1923
1924             This->num_frames++;
1925         }
1926         else
1927             hr = E_OUTOFMEMORY;
1928
1929         if (FAILED(hr))
1930         {
1931             IPropertyBag2_Release(*ppIEncoderOptions);
1932             *ppIEncoderOptions = NULL;
1933         }
1934     }
1935
1936     LeaveCriticalSection(&This->lock);
1937
1938     return hr;
1939 }
1940
1941 static HRESULT WINAPI TiffEncoder_Commit(IWICBitmapEncoder *iface)
1942 {
1943     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1944
1945     TRACE("(%p)\n", iface);
1946
1947     EnterCriticalSection(&This->lock);
1948
1949     if (!This->initialized || This->committed)
1950     {
1951         LeaveCriticalSection(&This->lock);
1952         return WINCODEC_ERR_WRONGSTATE;
1953     }
1954
1955     pTIFFClose(This->tiff);
1956     IStream_Release(This->stream);
1957     This->stream = NULL;
1958     This->tiff = NULL;
1959
1960     This->committed = TRUE;
1961
1962     LeaveCriticalSection(&This->lock);
1963
1964     return S_OK;
1965 }
1966
1967 static HRESULT WINAPI TiffEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
1968     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
1969 {
1970     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryWriter);
1971     return E_NOTIMPL;
1972 }
1973
1974 static const IWICBitmapEncoderVtbl TiffEncoder_Vtbl = {
1975     TiffEncoder_QueryInterface,
1976     TiffEncoder_AddRef,
1977     TiffEncoder_Release,
1978     TiffEncoder_Initialize,
1979     TiffEncoder_GetContainerFormat,
1980     TiffEncoder_GetEncoderInfo,
1981     TiffEncoder_SetColorContexts,
1982     TiffEncoder_SetPalette,
1983     TiffEncoder_SetThumbnail,
1984     TiffEncoder_SetPreview,
1985     TiffEncoder_CreateNewFrame,
1986     TiffEncoder_Commit,
1987     TiffEncoder_GetMetadataQueryWriter
1988 };
1989
1990 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
1991 {
1992     TiffEncoder *This;
1993     HRESULT ret;
1994
1995     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
1996
1997     *ppv = NULL;
1998
1999     if (!load_libtiff())
2000     {
2001         ERR("Failed writing TIFF because unable to load %s\n",SONAME_LIBTIFF);
2002         return E_FAIL;
2003     }
2004
2005     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffEncoder));
2006     if (!This) return E_OUTOFMEMORY;
2007
2008     This->IWICBitmapEncoder_iface.lpVtbl = &TiffEncoder_Vtbl;
2009     This->ref = 1;
2010     This->stream = NULL;
2011     InitializeCriticalSection(&This->lock);
2012     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffEncoder.lock");
2013     This->tiff = NULL;
2014     This->initialized = FALSE;
2015     This->num_frames = 0;
2016     This->num_frames_committed = 0;
2017     This->committed = FALSE;
2018
2019     ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
2020     IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
2021
2022     return ret;
2023 }
2024
2025 #else /* !SONAME_LIBTIFF */
2026
2027 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
2028 {
2029     ERR("Trying to load TIFF picture, but Wine was compiled without TIFF support.\n");
2030     return E_FAIL;
2031 }
2032
2033 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
2034 {
2035     ERR("Trying to save TIFF picture, but Wine was compiled without TIFF support.\n");
2036     return E_FAIL;
2037 }
2038
2039 #endif