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