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, source_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 == 2)
 330         {
 331             ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
 332             if (!ret)
 333             {
 334                 extra_sample_count = 1;
 335                 extra_sample = 0;
 336                 extra_samples = &extra_sample;
 337             }
 338         }
 339         else if (samples != 1)
 340         {
 341             FIXME("unhandled %dbpp sample count %u\n", bps, samples);
 342             return E_FAIL;
 343         }
 344
 345         decode_info->bpp = bps * samples;
 346         decode_info->source_bpp = decode_info->bpp;
 347         switch (bps)
 348         {
 349         case 1:
 350             if (samples != 1)
 351             {
 352                 FIXME("unhandled 1bpp sample count %u\n", samples);
 353                 return E_FAIL;
 354             }
 355             decode_info->format = &GUID_WICPixelFormatBlackWhite;
 356             break;
 357         case 4:
 358             if (samples != 1)
 359             {
 360                 FIXME("unhandled 4bpp grayscale sample count %u\n", samples);
 361                 return E_FAIL;
 362             }
 363             decode_info->format = &GUID_WICPixelFormat4bppGray;
 364             break;
 365         case 8:
 366             if (samples == 1)
 367                 decode_info->format = &GUID_WICPixelFormat8bppGray;
 368             else
 369             {
 370                 decode_info->bpp = 32;
 371
 372                 switch(extra_samples[0])
 373                 {
 374                 case 1: /* Associated (pre-multiplied) alpha data */
 375                     decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
 376                     break;
 377                 case 0: /* Unspecified data */
 378                 case 2: /* Unassociated alpha data */
 379                     decode_info->format = &GUID_WICPixelFormat32bppBGRA;
 380                     break;
 381                 default:
 382                     FIXME("unhandled extra sample type %u\n", extra_samples[0]);
 383                     return E_FAIL;
 384                 }
 385             }
 386             break;
 387         default:
 388             FIXME("unhandled greyscale bit count %u\n", bps);
 389             return E_FAIL;
 390         }
 391         break;
 392     case 2: /* RGB */
 393         decode_info->bpp = bps * samples;
 394
 395         if (samples == 4)
 396         {
 397             ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
 398             if (!ret)
 399             {
 400                 extra_sample_count = 1;
 401                 extra_sample = 0;
 402                 extra_samples = &extra_sample;
 403             }
 404         }
 405         else if (samples != 3)
 406         {
 407             FIXME("unhandled RGB sample count %u\n", samples);
 408             return E_FAIL;
 409         }
 410
 411         switch(bps)
 412         {
 413         case 8:
 414             decode_info->reverse_bgr = 1;
 415             if (samples == 3)
 416                 decode_info->format = &GUID_WICPixelFormat24bppBGR;
 417             else
 418                 switch(extra_samples[0])
 419                 {
 420                 case 1: /* Associated (pre-multiplied) alpha data */
 421                     decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
 422                     break;
 423                 case 0: /* Unspecified data */
 424                 case 2: /* Unassociated alpha data */
 425                     decode_info->format = &GUID_WICPixelFormat32bppBGRA;
 426                     break;
 427                 default:
 428                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 429                     return E_FAIL;
 430                 }
 431             break;
 432         case 16:
 433             if (samples == 3)
 434                 decode_info->format = &GUID_WICPixelFormat48bppRGB;
 435             else
 436                 switch(extra_samples[0])
 437                 {
 438                 case 1: /* Associated (pre-multiplied) alpha data */
 439                     decode_info->format = &GUID_WICPixelFormat64bppPRGBA;
 440                     break;
 441                 case 0: /* Unspecified data */
 442                 case 2: /* Unassociated alpha data */
 443                     decode_info->format = &GUID_WICPixelFormat64bppRGBA;
 444                     break;
 445                 default:
 446                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 447                     return E_FAIL;
 448                 }
 449             break;
 450         default:
 451             FIXME("unhandled RGB bit count %u\n", bps);
 452             return E_FAIL;
 453         }
 454         break;
 455     case 3: /* RGB Palette */
 456         if (samples != 1)
 457         {
 458             FIXME("unhandled indexed sample count %u\n", samples);
 459             return E_FAIL;
 460         }
 461
 462         decode_info->indexed = 1;
 463         decode_info->bpp = bps;
 464         switch (bps)
 465         {
 466         case 4:
 467             decode_info->format = &GUID_WICPixelFormat4bppIndexed;
 468             break;
 469         case 8:
 470             decode_info->format = &GUID_WICPixelFormat8bppIndexed;
 471             break;
 472         default:
 473             FIXME("unhandled indexed bit count %u\n", bps);
 474             return E_FAIL;
 475         }
 476         break;
 477     case 4: /* Transparency mask */
 478     case 5: /* CMYK */
 479     case 6: /* YCbCr */
 480     case 8: /* CIELab */
 481     default:
 482         FIXME("unhandled PhotometricInterpretation %u\n", photometric);
 483         return E_FAIL;
 484     }
 485
 486     ret = pTIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &decode_info->width);
 487     if (!ret)
 488     {
 489         WARN("missing image width\n");
 490         return E_FAIL;
 491     }
 492
 493     ret = pTIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &decode_info->height);
 494     if (!ret)
 495     {
 496         WARN("missing image length\n");
 497         return E_FAIL;
 498     }
 499
 500     if ((ret = pTIFFGetField(tiff, TIFFTAG_TILEWIDTH, &decode_info->tile_width)))
 501     {
 502         decode_info->tiled = 1;
 503
 504         ret = pTIFFGetField(tiff, TIFFTAG_TILELENGTH, &decode_info->tile_height);
 505         if (!ret)
 506         {
 507             WARN("missing tile height\n");
 508             return E_FAIL;
 509         }
 510
 511         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 512         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 513         decode_info->tiles_across = (decode_info->width + decode_info->tile_width - 1) / decode_info->tile_width;
 514     }
 515     else if ((ret = pTIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &decode_info->tile_height)))
 516     {
 517         if (decode_info->tile_height > decode_info->height)
 518             decode_info->tile_height = decode_info->height;
 519         decode_info->tile_width = decode_info->width;
 520         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 521         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 522     }
 523     else
 524     {
 525         /* Some broken TIFF files have a single strip and lack the RowsPerStrip tag */
 526         decode_info->tile_height = decode_info->height;
 527         decode_info->tile_width = decode_info->width;
 528         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 529         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 530     }
 531
 532     decode_info->resolution_unit = 0;
 533     pTIFFGetField(tiff, TIFFTAG_RESOLUTIONUNIT, &decode_info->resolution_unit);
 534     if (decode_info->resolution_unit != 0)
 535     {
 536         ret = pTIFFGetField(tiff, TIFFTAG_XRESOLUTION, &decode_info->xres);
 537         if (!ret)
 538         {
 539             WARN("missing X resolution\n");
 540             decode_info->resolution_unit = 0;
 541         }
 542
 543         ret = pTIFFGetField(tiff, TIFFTAG_YRESOLUTION, &decode_info->yres);
 544         if (!ret)
 545         {
 546             WARN("missing Y resolution\n");
 547             decode_info->resolution_unit = 0;
 548         }
 549     }
 550
 551     return S_OK;
 552 }
 553
 554 static HRESULT WINAPI TiffDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
 555     void **ppv)
 556 {
 557     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 558     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 559
 560     if (!ppv) return E_INVALIDARG;
 561
 562     if (IsEqualIID(&IID_IUnknown, iid) ||
 563         IsEqualIID(&IID_IWICBitmapDecoder, iid))
 564     {
 565         *ppv = &This->IWICBitmapDecoder_iface;
 566     }
 567     else
 568     {
 569         *ppv = NULL;
 570         return E_NOINTERFACE;
 571     }
 572
 573     IUnknown_AddRef((IUnknown*)*ppv);
 574     return S_OK;
 575 }
 576
 577 static ULONG WINAPI TiffDecoder_AddRef(IWICBitmapDecoder *iface)
 578 {
 579     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 580     ULONG ref = InterlockedIncrement(&This->ref);
 581
 582     TRACE("(%p) refcount=%u\n", iface, ref);
 583
 584     return ref;
 585 }
 586
 587 static ULONG WINAPI TiffDecoder_Release(IWICBitmapDecoder *iface)
 588 {
 589     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 590     ULONG ref = InterlockedDecrement(&This->ref);
 591
 592     TRACE("(%p) refcount=%u\n", iface, ref);
 593
 594     if (ref == 0)
 595     {
 596         if (This->tiff) pTIFFClose(This->tiff);
 597         if (This->stream) IStream_Release(This->stream);
 598         This->lock.DebugInfo->Spare[0] = 0;
 599         DeleteCriticalSection(&This->lock);
 600         HeapFree(GetProcessHeap(), 0, This);
 601     }
 602
 603     return ref;
 604 }
 605
 606 static HRESULT WINAPI TiffDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
 607     DWORD *capability)
 608 {
 609     HRESULT hr;
 610
 611     TRACE("(%p,%p,%p)\n", iface, stream, capability);
 612
 613     if (!stream || !capability) return E_INVALIDARG;
 614
 615     hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
 616     if (hr != S_OK) return hr;
 617
 618     *capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
 619                   WICBitmapDecoderCapabilityCanDecodeSomeImages |
 620                   WICBitmapDecoderCapabilityCanEnumerateMetadata;
 621     return S_OK;
 622 }
 623
 624 static HRESULT WINAPI TiffDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
 625     WICDecodeOptions cacheOptions)
 626 {
 627     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 628     TIFF *tiff;
 629     HRESULT hr=S_OK;
 630
 631     TRACE("(%p,%p,%x): stub\n", iface, pIStream, cacheOptions);
 632
 633     EnterCriticalSection(&This->lock);
 634
 635     if (This->initialized)
 636     {
 637         hr = WINCODEC_ERR_WRONGSTATE;
 638         goto exit;
 639     }
 640
 641     tiff = tiff_open_stream(pIStream, "r");
 642
 643     if (!tiff)
 644     {
 645         hr = E_FAIL;
 646         goto exit;
 647     }
 648
 649     This->tiff = tiff;
 650     This->stream = pIStream;
 651     IStream_AddRef(pIStream);
 652     This->initialized = TRUE;
 653
 654 exit:
 655     LeaveCriticalSection(&This->lock);
 656     return hr;
 657 }
 658
 659 static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
 660     GUID *pguidContainerFormat)
 661 {
 662     if (!pguidContainerFormat) return E_INVALIDARG;
 663
 664     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
 665     return S_OK;
 666 }
 667
 668 static HRESULT WINAPI TiffDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
 669     IWICBitmapDecoderInfo **ppIDecoderInfo)
 670 {
 671     HRESULT hr;
 672     IWICComponentInfo *compinfo;
 673
 674     TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
 675
 676     hr = CreateComponentInfo(&CLSID_WICTiffDecoder, &compinfo);
 677     if (FAILED(hr)) return hr;
 678
 679     hr = IWICComponentInfo_QueryInterface(compinfo, &IID_IWICBitmapDecoderInfo,
 680         (void**)ppIDecoderInfo);
 681
 682     IWICComponentInfo_Release(compinfo);
 683
 684     return hr;
 685 }
 686
 687 static HRESULT WINAPI TiffDecoder_CopyPalette(IWICBitmapDecoder *iface,
 688     IWICPalette *pIPalette)
 689 {
 690     FIXME("(%p,%p): stub\n", iface, pIPalette);
 691     return E_NOTIMPL;
 692 }
 693
 694 static HRESULT WINAPI TiffDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
 695     IWICMetadataQueryReader **ppIMetadataQueryReader)
 696 {
 697     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
 698     return E_NOTIMPL;
 699 }
 700
 701 static HRESULT WINAPI TiffDecoder_GetPreview(IWICBitmapDecoder *iface,
 702     IWICBitmapSource **ppIBitmapSource)
 703 {
 704     TRACE("(%p,%p)\n", iface, ppIBitmapSource);
 705
 706     if (!ppIBitmapSource) return E_INVALIDARG;
 707
 708     *ppIBitmapSource = NULL;
 709     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 710 }
 711
 712 static HRESULT WINAPI TiffDecoder_GetColorContexts(IWICBitmapDecoder *iface,
 713     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 714 {
 715     FIXME("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
 716     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 717 }
 718
 719 static HRESULT WINAPI TiffDecoder_GetThumbnail(IWICBitmapDecoder *iface,
 720     IWICBitmapSource **ppIThumbnail)
 721 {
 722     TRACE("(%p,%p)\n", iface, ppIThumbnail);
 723
 724     if (!ppIThumbnail) return E_INVALIDARG;
 725
 726     *ppIThumbnail = NULL;
 727     return WINCODEC_ERR_CODECNOTHUMBNAIL;
 728 }
 729
 730 static HRESULT WINAPI TiffDecoder_GetFrameCount(IWICBitmapDecoder *iface,
 731     UINT *pCount)
 732 {
 733     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 734
 735     if (!pCount) return E_INVALIDARG;
 736
 737     EnterCriticalSection(&This->lock);
 738     *pCount = This->tiff ? pTIFFNumberOfDirectories(This->tiff) : 0;
 739     LeaveCriticalSection(&This->lock);
 740
 741     TRACE("(%p) <-- %i\n", iface, *pCount);
 742
 743     return S_OK;
 744 }
 745
 746 static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
 747     UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
 748 {
 749     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 750     TiffFrameDecode *result;
 751     int res;
 752     tiff_decode_info decode_info;
 753     HRESULT hr;
 754
 755     TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
 756
 757     if (!This->tiff)
 758         return WINCODEC_ERR_FRAMEMISSING;
 759
 760     EnterCriticalSection(&This->lock);
 761     res = pTIFFSetDirectory(This->tiff, index);
 762     if (!res) hr = E_INVALIDARG;
 763     else hr = tiff_get_decode_info(This->tiff, &decode_info);
 764     LeaveCriticalSection(&This->lock);
 765
 766     if (SUCCEEDED(hr))
 767     {
 768         result = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffFrameDecode));
 769
 770         if (result)
 771         {
 772             result->IWICBitmapFrameDecode_iface.lpVtbl = &TiffFrameDecode_Vtbl;
 773             result->IWICMetadataBlockReader_iface.lpVtbl = &TiffFrameDecode_BlockVtbl;
 774             result->ref = 1;
 775             result->parent = This;
 776             result->index = index;
 777             result->decode_info = decode_info;
 778             result->cached_tile_x = -1;
 779             result->cached_tile = HeapAlloc(GetProcessHeap(), 0, decode_info.tile_size);
 780
 781             if (result->cached_tile)
 782                 *ppIBitmapFrame = &result->IWICBitmapFrameDecode_iface;
 783             else
 784             {
 785                 hr = E_OUTOFMEMORY;
 786                 HeapFree(GetProcessHeap(), 0, result);
 787             }
 788         }
 789         else hr = E_OUTOFMEMORY;
 790     }
 791
 792     if (FAILED(hr)) *ppIBitmapFrame = NULL;
 793
 794     return hr;
 795 }
 796
 797 static const IWICBitmapDecoderVtbl TiffDecoder_Vtbl = {
 798     TiffDecoder_QueryInterface,
 799     TiffDecoder_AddRef,
 800     TiffDecoder_Release,
 801     TiffDecoder_QueryCapability,
 802     TiffDecoder_Initialize,
 803     TiffDecoder_GetContainerFormat,
 804     TiffDecoder_GetDecoderInfo,
 805     TiffDecoder_CopyPalette,
 806     TiffDecoder_GetMetadataQueryReader,
 807     TiffDecoder_GetPreview,
 808     TiffDecoder_GetColorContexts,
 809     TiffDecoder_GetThumbnail,
 810     TiffDecoder_GetFrameCount,
 811     TiffDecoder_GetFrame
 812 };
 813
 814 static HRESULT WINAPI TiffFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
 815     void **ppv)
 816 {
 817     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 818     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 819
 820     if (!ppv) return E_INVALIDARG;
 821
 822     if (IsEqualIID(&IID_IUnknown, iid) ||
 823         IsEqualIID(&IID_IWICBitmapSource, iid) ||
 824         IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
 825     {
 826         *ppv = &This->IWICBitmapFrameDecode_iface;
 827     }
 828     else if (IsEqualIID(&IID_IWICMetadataBlockReader, iid))
 829     {
 830         *ppv = &This->IWICMetadataBlockReader_iface;
 831     }
 832     else
 833     {
 834         *ppv = NULL;
 835         return E_NOINTERFACE;
 836     }
 837
 838     IUnknown_AddRef((IUnknown*)*ppv);
 839     return S_OK;
 840 }
 841
 842 static ULONG WINAPI TiffFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
 843 {
 844     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 845     ULONG ref = InterlockedIncrement(&This->ref);
 846
 847     TRACE("(%p) refcount=%u\n", iface, ref);
 848
 849     return ref;
 850 }
 851
 852 static ULONG WINAPI TiffFrameDecode_Release(IWICBitmapFrameDecode *iface)
 853 {
 854     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 855     ULONG ref = InterlockedDecrement(&This->ref);
 856
 857     TRACE("(%p) refcount=%u\n", iface, ref);
 858
 859     if (ref == 0)
 860     {
 861         HeapFree(GetProcessHeap(), 0, This->cached_tile);
 862         HeapFree(GetProcessHeap(), 0, This);
 863     }
 864
 865     return ref;
 866 }
 867
 868 static HRESULT WINAPI TiffFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
 869     UINT *puiWidth, UINT *puiHeight)
 870 {
 871     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 872
 873     *puiWidth = This->decode_info.width;
 874     *puiHeight = This->decode_info.height;
 875
 876     TRACE("(%p) <-- %ux%u\n", iface, *puiWidth, *puiHeight);
 877
 878     return S_OK;
 879 }
 880
 881 static HRESULT WINAPI TiffFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
 882     WICPixelFormatGUID *pPixelFormat)
 883 {
 884     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 885
 886     memcpy(pPixelFormat, This->decode_info.format, sizeof(GUID));
 887
 888     TRACE("(%p) <-- %s\n", This, debugstr_guid(This->decode_info.format));
 889
 890     return S_OK;
 891 }
 892
 893 static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
 894     double *pDpiX, double *pDpiY)
 895 {
 896     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 897
 898     switch (This->decode_info.resolution_unit)
 899     {
 900     default:
 901         FIXME("unknown resolution unit %i\n", This->decode_info.resolution_unit);
 902         /* fall through */
 903     case 0: /* Not set */
 904         *pDpiX = *pDpiY = 96.0;
 905         break;
 906     case 1: /* Relative measurements */
 907         *pDpiX = 96.0;
 908         *pDpiY = 96.0 * This->decode_info.yres / This->decode_info.xres;
 909         break;
 910     case 2: /* Inch */
 911         *pDpiX = This->decode_info.xres;
 912         *pDpiY = This->decode_info.yres;
 913         break;
 914     case 3: /* Centimeter */
 915         *pDpiX = This->decode_info.xres / 2.54;
 916         *pDpiY = This->decode_info.yres / 2.54;
 917         break;
 918     }
 919
 920     TRACE("(%p) <-- %f,%f unit=%i\n", iface, *pDpiX, *pDpiY, This->decode_info.resolution_unit);
 921
 922     return S_OK;
 923 }
 924
 925 static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
 926     IWICPalette *pIPalette)
 927 {
 928     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 929     uint16 *red, *green, *blue;
 930     WICColor colors[256];
 931     int color_count, ret, i;
 932
 933     TRACE("(%p,%p)\n", iface, pIPalette);
 934
 935     color_count = 1<<This->decode_info.bps;
 936
 937     EnterCriticalSection(&This->parent->lock);
 938     ret = pTIFFGetField(This->parent->tiff, TIFFTAG_COLORMAP, &red, &green, &blue);
 939     LeaveCriticalSection(&This->parent->lock);
 940
 941     if (!ret)
 942     {
 943         WARN("Couldn't read color map\n");
 944         return WINCODEC_ERR_PALETTEUNAVAILABLE;
 945     }
 946
 947     for (i=0; i<color_count; i++)
 948     {
 949         colors[i] = 0xff000000 |
 950             ((red[i]<<8) & 0xff0000) |
 951             (green[i] & 0xff00) |
 952             ((blue[i]>>8) & 0xff);
 953     }
 954
 955     return IWICPalette_InitializeCustom(pIPalette, colors, color_count);
 956 }
 957
 958 static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)
 959 {
 960     HRESULT hr=S_OK;
 961     tsize_t ret;
 962     int swap_bytes;
 963
 964     swap_bytes = pTIFFIsByteSwapped(This->parent->tiff);
 965
 966     ret = pTIFFSetDirectory(This->parent->tiff, This->index);
 967
 968     if (ret == -1)
 969         hr = E_FAIL;
 970
 971     if (hr == S_OK)
 972     {
 973         if (This->decode_info.tiled)
 974         {
 975             ret = pTIFFReadEncodedTile(This->parent->tiff, tile_x + tile_y * This->decode_info.tiles_across, This->cached_tile, This->decode_info.tile_size);
 976         }
 977         else
 978         {
 979             ret = pTIFFReadEncodedStrip(This->parent->tiff, tile_y, This->cached_tile, This->decode_info.tile_size);
 980         }
 981
 982         if (ret == -1)
 983             hr = E_FAIL;
 984     }
 985
 986     /* 8bpp grayscale with extra alpha */
 987     if (hr == S_OK && This->decode_info.source_bpp == 16 && This->decode_info.samples == 2 && This->decode_info.bpp == 32)
 988     {
 989         BYTE *src;
 990         DWORD *dst, count = This->decode_info.tile_width * This->decode_info.tile_height;
 991
 992         src = This->cached_tile + This->decode_info.tile_width * This->decode_info.tile_height * 2 - 2;
 993         dst = (DWORD *)(This->cached_tile + This->decode_info.tile_size - 4);
 994
 995         while (count--)
 996         {
 997             *dst-- = src[0] | (src[0] << 8) | (src[0] << 16) | (src[1] << 24);
 998             src -= 2;
 999         }
1000     }
1001
1002     if (hr == S_OK && This->decode_info.reverse_bgr)
1003     {
1004         if (This->decode_info.bps == 8)
1005         {
1006             UINT sample_count = This->decode_info.samples;
1007
1008             reverse_bgr8(sample_count, This->cached_tile, This->decode_info.tile_width,
1009                 This->decode_info.tile_height, This->decode_info.tile_width * sample_count);
1010         }
1011     }
1012
1013     if (hr == S_OK && swap_bytes && This->decode_info.bps > 8)
1014     {
1015         UINT row, i, samples_per_row;
1016         BYTE *sample, temp;
1017
1018         samples_per_row = This->decode_info.tile_width * This->decode_info.samples;
1019
1020         switch(This->decode_info.bps)
1021         {
1022         case 16:
1023             for (row=0; row<This->decode_info.tile_height; row++)
1024             {
1025                 sample = This->cached_tile + row * This->decode_info.tile_stride;
1026                 for (i=0; i<samples_per_row; i++)
1027                 {
1028                     temp = sample[1];
1029                     sample[1] = sample[0];
1030                     sample[0] = temp;
1031                     sample += 2;
1032                 }
1033             }
1034             break;
1035         default:
1036             ERR("unhandled bps for byte swap %u\n", This->decode_info.bps);
1037             return E_FAIL;
1038         }
1039     }
1040
1041     if (hr == S_OK && This->decode_info.invert_grayscale)
1042     {
1043         BYTE *byte, *end;
1044
1045         if (This->decode_info.samples != 1)
1046         {
1047             ERR("cannot invert grayscale image with %u samples\n", This->decode_info.samples);
1048             return E_FAIL;
1049         }
1050
1051         end = This->cached_tile+This->decode_info.tile_size;
1052
1053         for (byte = This->cached_tile; byte != end; byte++)
1054             *byte = ~(*byte);
1055     }
1056
1057     if (hr == S_OK)
1058     {
1059         This->cached_tile_x = tile_x;
1060         This->cached_tile_y = tile_y;
1061     }
1062
1063     return hr;
1064 }
1065
1066 static HRESULT WINAPI TiffFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
1067     const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
1068 {
1069     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1070     UINT min_tile_x, max_tile_x, min_tile_y, max_tile_y;
1071     UINT tile_x, tile_y;
1072     WICRect rc;
1073     HRESULT hr=S_OK;
1074     BYTE *dst_tilepos;
1075     UINT bytesperrow;
1076     WICRect rect;
1077
1078     TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
1079
1080     if (!prc)
1081     {
1082         rect.X = 0;
1083         rect.Y = 0;
1084         rect.Width = This->decode_info.width;
1085         rect.Height = This->decode_info.height;
1086         prc = &rect;
1087     }
1088     else
1089     {
1090         if (prc->X < 0 || prc->Y < 0 || prc->X+prc->Width > This->decode_info.width ||
1091             prc->Y+prc->Height > This->decode_info.height)
1092             return E_INVALIDARG;
1093     }
1094
1095     bytesperrow = ((This->decode_info.bpp * prc->Width)+7)/8;
1096
1097     if (cbStride < bytesperrow)
1098         return E_INVALIDARG;
1099
1100     if ((cbStride * prc->Height) > cbBufferSize)
1101         return E_INVALIDARG;
1102
1103     min_tile_x = prc->X / This->decode_info.tile_width;
1104     min_tile_y = prc->Y / This->decode_info.tile_height;
1105     max_tile_x = (prc->X+prc->Width-1) / This->decode_info.tile_width;
1106     max_tile_y = (prc->Y+prc->Height-1) / This->decode_info.tile_height;
1107
1108     EnterCriticalSection(&This->parent->lock);
1109
1110     for (tile_x=min_tile_x; tile_x <= max_tile_x; tile_x++)
1111     {
1112         for (tile_y=min_tile_y; tile_y <= max_tile_y; tile_y++)
1113         {
1114             if (tile_x != This->cached_tile_x || tile_y != This->cached_tile_y)
1115             {
1116                 hr = TiffFrameDecode_ReadTile(This, tile_x, tile_y);
1117             }
1118
1119             if (SUCCEEDED(hr))
1120             {
1121                 if (prc->X < tile_x * This->decode_info.tile_width)
1122                     rc.X = 0;
1123                 else
1124                     rc.X = prc->X - tile_x * This->decode_info.tile_width;
1125
1126                 if (prc->Y < tile_y * This->decode_info.tile_height)
1127                     rc.Y = 0;
1128                 else
1129                     rc.Y = prc->Y - tile_y * This->decode_info.tile_height;
1130
1131                 if (prc->X+prc->Width > (tile_x+1) * This->decode_info.tile_width)
1132                     rc.Width = This->decode_info.tile_width - rc.X;
1133                 else if (prc->X < tile_x * This->decode_info.tile_width)
1134                     rc.Width = prc->Width + prc->X - tile_x * This->decode_info.tile_width;
1135                 else
1136                     rc.Width = prc->Width;
1137
1138                 if (prc->Y+prc->Height > (tile_y+1) * This->decode_info.tile_height)
1139                     rc.Height = This->decode_info.tile_height - rc.Y;
1140                 else if (prc->Y < tile_y * This->decode_info.tile_height)
1141                     rc.Height = prc->Height + prc->Y - tile_y * This->decode_info.tile_height;
1142                 else
1143                     rc.Height = prc->Height;
1144
1145                 dst_tilepos = pbBuffer + (cbStride * ((rc.Y + tile_y * This->decode_info.tile_height) - prc->Y)) +
1146                     ((This->decode_info.bpp * ((rc.X + tile_x * This->decode_info.tile_width) - prc->X) + 7) / 8);
1147
1148                 hr = copy_pixels(This->decode_info.bpp, This->cached_tile,
1149                     This->decode_info.tile_width, This->decode_info.tile_height, This->decode_info.tile_stride,
1150                     &rc, cbStride, cbBufferSize, dst_tilepos);
1151             }
1152
1153             if (FAILED(hr))
1154             {
1155                 LeaveCriticalSection(&This->parent->lock);
1156                 TRACE("<-- 0x%x\n", hr);
1157                 return hr;
1158             }
1159         }
1160     }
1161
1162     LeaveCriticalSection(&This->parent->lock);
1163
1164     return S_OK;
1165 }
1166
1167 static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
1168     IWICMetadataQueryReader **ppIMetadataQueryReader)
1169 {
1170     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
1171     return E_NOTIMPL;
1172 }
1173
1174 static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
1175     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
1176 {
1177     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1178     const BYTE *profile;
1179     UINT len;
1180     HRESULT hr;
1181
1182     TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
1183
1184     EnterCriticalSection(&This->parent->lock);
1185
1186     if (pTIFFGetField(This->parent->tiff, TIFFTAG_ICCPROFILE, &len, &profile))
1187     {
1188         if (cCount && ppIColorContexts)
1189         {
1190             hr = IWICColorContext_InitializeFromMemory(*ppIColorContexts, profile, len);
1191             if (FAILED(hr))
1192             {
1193                 LeaveCriticalSection(&This->parent->lock);
1194                 return hr;
1195             }
1196         }
1197         *pcActualCount = 1;
1198     }
1199     else
1200         *pcActualCount = 0;
1201
1202     LeaveCriticalSection(&This->parent->lock);
1203
1204     return S_OK;
1205 }
1206
1207 static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
1208     IWICBitmapSource **ppIThumbnail)
1209 {
1210     TRACE("(%p,%p)\n", iface, ppIThumbnail);
1211
1212     if (!ppIThumbnail) return E_INVALIDARG;
1213
1214     *ppIThumbnail = NULL;
1215     return WINCODEC_ERR_CODECNOTHUMBNAIL;
1216 }
1217
1218 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl = {
1219     TiffFrameDecode_QueryInterface,
1220     TiffFrameDecode_AddRef,
1221     TiffFrameDecode_Release,
1222     TiffFrameDecode_GetSize,
1223     TiffFrameDecode_GetPixelFormat,
1224     TiffFrameDecode_GetResolution,
1225     TiffFrameDecode_CopyPalette,
1226     TiffFrameDecode_CopyPixels,
1227     TiffFrameDecode_GetMetadataQueryReader,
1228     TiffFrameDecode_GetColorContexts,
1229     TiffFrameDecode_GetThumbnail
1230 };
1231
1232 static HRESULT WINAPI TiffFrameDecode_Block_QueryInterface(IWICMetadataBlockReader *iface,
1233     REFIID iid, void **ppv)
1234 {
1235     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1236     return IWICBitmapFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
1237 }
1238
1239 static ULONG WINAPI TiffFrameDecode_Block_AddRef(IWICMetadataBlockReader *iface)
1240 {
1241     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1242     return IWICBitmapFrameDecode_AddRef(&This->IWICBitmapFrameDecode_iface);
1243 }
1244
1245 static ULONG WINAPI TiffFrameDecode_Block_Release(IWICMetadataBlockReader *iface)
1246 {
1247     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1248     return IWICBitmapFrameDecode_Release(&This->IWICBitmapFrameDecode_iface);
1249 }
1250
1251 static HRESULT WINAPI TiffFrameDecode_Block_GetContainerFormat(IWICMetadataBlockReader *iface,
1252     GUID *guid)
1253 {
1254     TRACE("(%p,%p)\n", iface, guid);
1255
1256     if (!guid) return E_INVALIDARG;
1257
1258     *guid = GUID_ContainerFormatTiff;
1259     return S_OK;
1260 }
1261
1262 static HRESULT WINAPI TiffFrameDecode_Block_GetCount(IWICMetadataBlockReader *iface,
1263     UINT *count)
1264 {
1265     TRACE("%p,%p\n", iface, count);
1266
1267     if (!count) return E_INVALIDARG;
1268
1269     *count = 1;
1270     return S_OK;
1271 }
1272
1273 static HRESULT create_metadata_reader(TiffFrameDecode *This, IWICMetadataReader **reader)
1274 {
1275     HRESULT hr;
1276     LARGE_INTEGER dir_offset;
1277     IWICMetadataReader *metadata_reader;
1278     IWICPersistStream *persist;
1279
1280     /* FIXME: Use IWICComponentFactory_CreateMetadataReader once it's implemented */
1281
1282     hr = IfdMetadataReader_CreateInstance(&IID_IWICMetadataReader, (void **)&metadata_reader);
1283     if (FAILED(hr)) return hr;
1284
1285     hr = IWICMetadataReader_QueryInterface(metadata_reader, &IID_IWICPersistStream, (void **)&persist);
1286     if (FAILED(hr))
1287     {
1288         IWICMetadataReader_Release(metadata_reader);
1289         return hr;
1290     }
1291
1292     EnterCriticalSection(&This->parent->lock);
1293
1294     dir_offset.QuadPart = pTIFFCurrentDirOffset(This->parent->tiff);
1295     hr = IStream_Seek(This->parent->stream, dir_offset, STREAM_SEEK_SET, NULL);
1296     if (SUCCEEDED(hr))
1297     {
1298         BOOL byte_swapped = pTIFFIsByteSwapped(This->parent->tiff);
1299 #ifdef WORDS_BIGENDIAN
1300         DWORD persist_options = byte_swapped ? WICPersistOptionsLittleEndian : WICPersistOptionsBigEndian;
1301 #else
1302         DWORD persist_options = byte_swapped ? WICPersistOptionsBigEndian : WICPersistOptionsLittleEndian;
1303 #endif
1304         persist_options |= WICPersistOptionsNoCacheStream;
1305         hr = IWICPersistStream_LoadEx(persist, This->parent->stream, NULL, persist_options);
1306         if (FAILED(hr))
1307             ERR("IWICPersistStream_LoadEx error %#x\n", hr);
1308     }
1309
1310     LeaveCriticalSection(&This->parent->lock);
1311
1312     IWICPersistStream_Release(persist);
1313
1314     if (FAILED(hr))
1315     {
1316         IWICMetadataReader_Release(metadata_reader);
1317         return hr;
1318     }
1319
1320     *reader = metadata_reader;
1321     return S_OK;
1322 }
1323
1324 static HRESULT WINAPI TiffFrameDecode_Block_GetReaderByIndex(IWICMetadataBlockReader *iface,
1325     UINT index, IWICMetadataReader **reader)
1326 {
1327     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1328
1329     TRACE("(%p,%u,%p)\n", iface, index, reader);
1330
1331     if (!reader || index != 0) return E_INVALIDARG;
1332
1333     return create_metadata_reader(This, reader);
1334 }
1335
1336 static HRESULT WINAPI TiffFrameDecode_Block_GetEnumerator(IWICMetadataBlockReader *iface,
1337     IEnumUnknown **enum_metadata)
1338 {
1339     FIXME("(%p,%p): stub\n", iface, enum_metadata);
1340     return E_NOTIMPL;
1341 }
1342
1343 static const IWICMetadataBlockReaderVtbl TiffFrameDecode_BlockVtbl =
1344 {
1345     TiffFrameDecode_Block_QueryInterface,
1346     TiffFrameDecode_Block_AddRef,
1347     TiffFrameDecode_Block_Release,
1348     TiffFrameDecode_Block_GetContainerFormat,
1349     TiffFrameDecode_Block_GetCount,
1350     TiffFrameDecode_Block_GetReaderByIndex,
1351     TiffFrameDecode_Block_GetEnumerator
1352 };
1353
1354 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
1355 {
1356     HRESULT ret;
1357     TiffDecoder *This;
1358
1359     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
1360
1361     *ppv = NULL;
1362
1363     if (!load_libtiff())
1364     {
1365         ERR("Failed reading TIFF because unable to load %s\n",SONAME_LIBTIFF);
1366         return E_FAIL;
1367     }
1368
1369     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffDecoder));
1370     if (!This) return E_OUTOFMEMORY;
1371
1372     This->IWICBitmapDecoder_iface.lpVtbl = &TiffDecoder_Vtbl;
1373     This->ref = 1;
1374     This->stream = NULL;
1375     InitializeCriticalSection(&This->lock);
1376     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffDecoder.lock");
1377     This->tiff = NULL;
1378     This->initialized = FALSE;
1379
1380     ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
1381     IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
1382
1383     return ret;
1384 }
1385
1386 struct tiff_encode_format {
1387     const WICPixelFormatGUID *guid;
1388     int photometric;
1389     int bps;
1390     int samples;
1391     int bpp;
1392     int extra_sample;
1393     int extra_sample_type;
1394     int reverse_bgr;
1395 };
1396
1397 static const struct tiff_encode_format formats[] = {
1398     {&GUID_WICPixelFormat24bppBGR, 2, 8, 3, 24, 0, 0, 1},
1399     {&GUID_WICPixelFormat24bppRGB, 2, 8, 3, 24, 0, 0, 0},
1400     {&GUID_WICPixelFormatBlackWhite, 1, 1, 1, 1, 0, 0, 0},
1401     {&GUID_WICPixelFormat4bppGray, 1, 4, 1, 4, 0, 0, 0},
1402     {&GUID_WICPixelFormat8bppGray, 1, 8, 1, 8, 0, 0, 0},
1403     {&GUID_WICPixelFormat32bppBGRA, 2, 8, 4, 32, 1, 2, 1},
1404     {&GUID_WICPixelFormat32bppPBGRA, 2, 8, 4, 32, 1, 1, 1},
1405     {&GUID_WICPixelFormat48bppRGB, 2, 16, 3, 48, 0, 0, 0},
1406     {&GUID_WICPixelFormat64bppRGBA, 2, 16, 4, 64, 1, 2, 0},
1407     {&GUID_WICPixelFormat64bppPRGBA, 2, 16, 4, 64, 1, 1, 0},
1408     {0}
1409 };
1410
1411 typedef struct TiffEncoder {
1412     IWICBitmapEncoder IWICBitmapEncoder_iface;
1413     LONG ref;
1414     IStream *stream;
1415     CRITICAL_SECTION lock; /* Must be held when tiff is used or fields below are set */
1416     TIFF *tiff;
1417     BOOL initialized;
1418     BOOL committed;
1419     ULONG num_frames;
1420     ULONG num_frames_committed;
1421 } TiffEncoder;
1422
1423 static inline TiffEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
1424 {
1425     return CONTAINING_RECORD(iface, TiffEncoder, IWICBitmapEncoder_iface);
1426 }
1427
1428 typedef struct TiffFrameEncode {
1429     IWICBitmapFrameEncode IWICBitmapFrameEncode_iface;
1430     LONG ref;
1431     TiffEncoder *parent;
1432     /* fields below are protected by parent->lock */
1433     BOOL initialized;
1434     BOOL info_written;
1435     BOOL committed;
1436     const struct tiff_encode_format *format;
1437     UINT width, height;
1438     double xres, yres;
1439     UINT lines_written;
1440 } TiffFrameEncode;
1441
1442 static inline TiffFrameEncode *impl_from_IWICBitmapFrameEncode(IWICBitmapFrameEncode *iface)
1443 {
1444     return CONTAINING_RECORD(iface, TiffFrameEncode, IWICBitmapFrameEncode_iface);
1445 }
1446
1447 static HRESULT WINAPI TiffFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
1448     void **ppv)
1449 {
1450     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1451     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1452
1453     if (!ppv) return E_INVALIDARG;
1454
1455     if (IsEqualIID(&IID_IUnknown, iid) ||
1456         IsEqualIID(&IID_IWICBitmapFrameEncode, iid))
1457     {
1458         *ppv = &This->IWICBitmapFrameEncode_iface;
1459     }
1460     else
1461     {
1462         *ppv = NULL;
1463         return E_NOINTERFACE;
1464     }
1465
1466     IUnknown_AddRef((IUnknown*)*ppv);
1467     return S_OK;
1468 }
1469
1470 static ULONG WINAPI TiffFrameEncode_AddRef(IWICBitmapFrameEncode *iface)
1471 {
1472     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1473     ULONG ref = InterlockedIncrement(&This->ref);
1474
1475     TRACE("(%p) refcount=%u\n", iface, ref);
1476
1477     return ref;
1478 }
1479
1480 static ULONG WINAPI TiffFrameEncode_Release(IWICBitmapFrameEncode *iface)
1481 {
1482     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1483     ULONG ref = InterlockedDecrement(&This->ref);
1484
1485     TRACE("(%p) refcount=%u\n", iface, ref);
1486
1487     if (ref == 0)
1488     {
1489         IWICBitmapEncoder_Release(&This->parent->IWICBitmapEncoder_iface);
1490         HeapFree(GetProcessHeap(), 0, This);
1491     }
1492
1493     return ref;
1494 }
1495
1496 static HRESULT WINAPI TiffFrameEncode_Initialize(IWICBitmapFrameEncode *iface,
1497     IPropertyBag2 *pIEncoderOptions)
1498 {
1499     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1500     TRACE("(%p,%p)\n", iface, pIEncoderOptions);
1501
1502     EnterCriticalSection(&This->parent->lock);
1503
1504     if (This->initialized)
1505     {
1506         LeaveCriticalSection(&This->parent->lock);
1507         return WINCODEC_ERR_WRONGSTATE;
1508     }
1509
1510     This->initialized = TRUE;
1511
1512     LeaveCriticalSection(&This->parent->lock);
1513
1514     return S_OK;
1515 }
1516
1517 static HRESULT WINAPI TiffFrameEncode_SetSize(IWICBitmapFrameEncode *iface,
1518     UINT uiWidth, UINT uiHeight)
1519 {
1520     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1521     TRACE("(%p,%u,%u)\n", iface, uiWidth, uiHeight);
1522
1523     EnterCriticalSection(&This->parent->lock);
1524
1525     if (!This->initialized || This->info_written)
1526     {
1527         LeaveCriticalSection(&This->parent->lock);
1528         return WINCODEC_ERR_WRONGSTATE;
1529     }
1530
1531     This->width = uiWidth;
1532     This->height = uiHeight;
1533
1534     LeaveCriticalSection(&This->parent->lock);
1535
1536     return S_OK;
1537 }
1538
1539 static HRESULT WINAPI TiffFrameEncode_SetResolution(IWICBitmapFrameEncode *iface,
1540     double dpiX, double dpiY)
1541 {
1542     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1543     TRACE("(%p,%0.2f,%0.2f)\n", iface, dpiX, dpiY);
1544
1545     EnterCriticalSection(&This->parent->lock);
1546
1547     if (!This->initialized || This->info_written)
1548     {
1549         LeaveCriticalSection(&This->parent->lock);
1550         return WINCODEC_ERR_WRONGSTATE;
1551     }
1552
1553     This->xres = dpiX;
1554     This->yres = dpiY;
1555
1556     LeaveCriticalSection(&This->parent->lock);
1557
1558     return S_OK;
1559 }
1560
1561 static HRESULT WINAPI TiffFrameEncode_SetPixelFormat(IWICBitmapFrameEncode *iface,
1562     WICPixelFormatGUID *pPixelFormat)
1563 {
1564     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1565     int i;
1566
1567     TRACE("(%p,%s)\n", iface, debugstr_guid(pPixelFormat));
1568
1569     EnterCriticalSection(&This->parent->lock);
1570
1571     if (!This->initialized || This->info_written)
1572     {
1573         LeaveCriticalSection(&This->parent->lock);
1574         return WINCODEC_ERR_WRONGSTATE;
1575     }
1576
1577     for (i=0; formats[i].guid; i++)
1578     {
1579         if (memcmp(formats[i].guid, pPixelFormat, sizeof(GUID)) == 0)
1580             break;
1581     }
1582
1583     if (!formats[i].guid) i = 0;
1584
1585     This->format = &formats[i];
1586     memcpy(pPixelFormat, This->format->guid, sizeof(GUID));
1587
1588     LeaveCriticalSection(&This->parent->lock);
1589
1590     return S_OK;
1591 }
1592
1593 static HRESULT WINAPI TiffFrameEncode_SetColorContexts(IWICBitmapFrameEncode *iface,
1594     UINT cCount, IWICColorContext **ppIColorContext)
1595 {
1596     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
1597     return E_NOTIMPL;
1598 }
1599
1600 static HRESULT WINAPI TiffFrameEncode_SetPalette(IWICBitmapFrameEncode *iface,
1601     IWICPalette *pIPalette)
1602 {
1603     FIXME("(%p,%p): stub\n", iface, pIPalette);
1604     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1605 }
1606
1607 static HRESULT WINAPI TiffFrameEncode_SetThumbnail(IWICBitmapFrameEncode *iface,
1608     IWICBitmapSource *pIThumbnail)
1609 {
1610     FIXME("(%p,%p): stub\n", iface, pIThumbnail);
1611     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1612 }
1613
1614 static HRESULT WINAPI TiffFrameEncode_WritePixels(IWICBitmapFrameEncode *iface,
1615     UINT lineCount, UINT cbStride, UINT cbBufferSize, BYTE *pbPixels)
1616 {
1617     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1618     BYTE *row_data, *swapped_data = NULL;
1619     UINT i, j, line_size;
1620
1621     TRACE("(%p,%u,%u,%u,%p)\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
1622
1623     EnterCriticalSection(&This->parent->lock);
1624
1625     if (!This->initialized || !This->width || !This->height || !This->format)
1626     {
1627         LeaveCriticalSection(&This->parent->lock);
1628         return WINCODEC_ERR_WRONGSTATE;
1629     }
1630
1631     if (lineCount == 0 || lineCount + This->lines_written > This->height)
1632     {
1633         LeaveCriticalSection(&This->parent->lock);
1634         return E_INVALIDARG;
1635     }
1636
1637     line_size = ((This->width * This->format->bpp)+7)/8;
1638
1639     if (This->format->reverse_bgr)
1640     {
1641         swapped_data = HeapAlloc(GetProcessHeap(), 0, line_size);
1642         if (!swapped_data)
1643         {
1644             LeaveCriticalSection(&This->parent->lock);
1645             return E_OUTOFMEMORY;
1646         }
1647     }
1648
1649     if (!This->info_written)
1650     {
1651         pTIFFSetField(This->parent->tiff, TIFFTAG_PHOTOMETRIC, (uint16)This->format->photometric);
1652         pTIFFSetField(This->parent->tiff, TIFFTAG_PLANARCONFIG, (uint16)1);
1653         pTIFFSetField(This->parent->tiff, TIFFTAG_BITSPERSAMPLE, (uint16)This->format->bps);
1654         pTIFFSetField(This->parent->tiff, TIFFTAG_SAMPLESPERPIXEL, (uint16)This->format->samples);
1655
1656         if (This->format->extra_sample)
1657         {
1658             uint16 extra_samples;
1659             extra_samples = This->format->extra_sample_type;
1660
1661             pTIFFSetField(This->parent->tiff, TIFFTAG_EXTRASAMPLES, (uint16)1, &extra_samples);
1662         }
1663
1664         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGEWIDTH, (uint32)This->width);
1665         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGELENGTH, (uint32)This->height);
1666
1667         if (This->xres != 0.0 && This->yres != 0.0)
1668         {
1669             pTIFFSetField(This->parent->tiff, TIFFTAG_RESOLUTIONUNIT, (uint16)2); /* Inch */
1670             pTIFFSetField(This->parent->tiff, TIFFTAG_XRESOLUTION, (float)This->xres);
1671             pTIFFSetField(This->parent->tiff, TIFFTAG_YRESOLUTION, (float)This->yres);
1672         }
1673
1674         This->info_written = TRUE;
1675     }
1676
1677     for (i=0; i<lineCount; i++)
1678     {
1679         row_data = pbPixels + i * cbStride;
1680
1681         if (This->format->reverse_bgr && This->format->bps == 8)
1682         {
1683             memcpy(swapped_data, row_data, line_size);
1684             for (j=0; j<line_size; j += This->format->samples)
1685             {
1686                 BYTE temp;
1687                 temp = swapped_data[j];
1688                 swapped_data[j] = swapped_data[j+2];
1689                 swapped_data[j+2] = temp;
1690             }
1691             row_data = swapped_data;
1692         }
1693
1694         pTIFFWriteScanline(This->parent->tiff, (tdata_t)row_data, i+This->lines_written, 0);
1695     }
1696
1697     This->lines_written += lineCount;
1698
1699     LeaveCriticalSection(&This->parent->lock);
1700
1701     HeapFree(GetProcessHeap(), 0, swapped_data);
1702
1703     return S_OK;
1704 }
1705
1706 static HRESULT WINAPI TiffFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
1707     IWICBitmapSource *pIBitmapSource, WICRect *prc)
1708 {
1709     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1710     HRESULT hr;
1711
1712     TRACE("(%p,%p,%p)\n", iface, pIBitmapSource, prc);
1713
1714     if (!This->initialized)
1715         return WINCODEC_ERR_WRONGSTATE;
1716
1717     hr = configure_write_source(iface, pIBitmapSource, prc,
1718         This->format ? This->format->guid : NULL, This->width, This->height,
1719         This->xres, This->yres);
1720
1721     if (SUCCEEDED(hr))
1722     {
1723         hr = write_source(iface, pIBitmapSource, prc,
1724             This->format->guid, This->format->bpp, This->width, This->height);
1725     }
1726
1727     return hr;
1728 }
1729
1730 static HRESULT WINAPI TiffFrameEncode_Commit(IWICBitmapFrameEncode *iface)
1731 {
1732     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1733
1734     TRACE("(%p)\n", iface);
1735
1736     EnterCriticalSection(&This->parent->lock);
1737
1738     if (!This->info_written || This->lines_written != This->height || This->committed)
1739     {
1740         LeaveCriticalSection(&This->parent->lock);
1741         return WINCODEC_ERR_WRONGSTATE;
1742     }
1743
1744     /* libtiff will commit the data when creating a new frame or closing the file */
1745
1746     This->committed = TRUE;
1747     This->parent->num_frames_committed++;
1748
1749     LeaveCriticalSection(&This->parent->lock);
1750
1751     return S_OK;
1752 }
1753
1754 static HRESULT WINAPI TiffFrameEncode_GetMetadataQueryWriter(IWICBitmapFrameEncode *iface,
1755     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
1756 {
1757     FIXME("(%p, %p): stub\n", iface, ppIMetadataQueryWriter);
1758     return E_NOTIMPL;
1759 }
1760
1761 static const IWICBitmapFrameEncodeVtbl TiffFrameEncode_Vtbl = {
1762     TiffFrameEncode_QueryInterface,
1763     TiffFrameEncode_AddRef,
1764     TiffFrameEncode_Release,
1765     TiffFrameEncode_Initialize,
1766     TiffFrameEncode_SetSize,
1767     TiffFrameEncode_SetResolution,
1768     TiffFrameEncode_SetPixelFormat,
1769     TiffFrameEncode_SetColorContexts,
1770     TiffFrameEncode_SetPalette,
1771     TiffFrameEncode_SetThumbnail,
1772     TiffFrameEncode_WritePixels,
1773     TiffFrameEncode_WriteSource,
1774     TiffFrameEncode_Commit,
1775     TiffFrameEncode_GetMetadataQueryWriter
1776 };
1777
1778 static HRESULT WINAPI TiffEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
1779     void **ppv)
1780 {
1781     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1782     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1783
1784     if (!ppv) return E_INVALIDARG;
1785
1786     if (IsEqualIID(&IID_IUnknown, iid) ||
1787         IsEqualIID(&IID_IWICBitmapEncoder, iid))
1788     {
1789         *ppv = &This->IWICBitmapEncoder_iface;
1790     }
1791     else
1792     {
1793         *ppv = NULL;
1794         return E_NOINTERFACE;
1795     }
1796
1797     IUnknown_AddRef((IUnknown*)*ppv);
1798     return S_OK;
1799 }
1800
1801 static ULONG WINAPI TiffEncoder_AddRef(IWICBitmapEncoder *iface)
1802 {
1803     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1804     ULONG ref = InterlockedIncrement(&This->ref);
1805
1806     TRACE("(%p) refcount=%u\n", iface, ref);
1807
1808     return ref;
1809 }
1810
1811 static ULONG WINAPI TiffEncoder_Release(IWICBitmapEncoder *iface)
1812 {
1813     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1814     ULONG ref = InterlockedDecrement(&This->ref);
1815
1816     TRACE("(%p) refcount=%u\n", iface, ref);
1817
1818     if (ref == 0)
1819     {
1820         if (This->tiff) pTIFFClose(This->tiff);
1821         if (This->stream) IStream_Release(This->stream);
1822         This->lock.DebugInfo->Spare[0] = 0;
1823         DeleteCriticalSection(&This->lock);
1824         HeapFree(GetProcessHeap(), 0, This);
1825     }
1826
1827     return ref;
1828 }
1829
1830 static HRESULT WINAPI TiffEncoder_Initialize(IWICBitmapEncoder *iface,
1831     IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
1832 {
1833     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1834     TIFF *tiff;
1835     HRESULT hr=S_OK;
1836
1837     TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOption);
1838
1839     EnterCriticalSection(&This->lock);
1840
1841     if (This->initialized || This->committed)
1842     {
1843         hr = WINCODEC_ERR_WRONGSTATE;
1844         goto exit;
1845     }
1846
1847     tiff = tiff_open_stream(pIStream, "w");
1848
1849     if (!tiff)
1850     {
1851         hr = E_FAIL;
1852         goto exit;
1853     }
1854
1855     This->tiff = tiff;
1856     This->stream = pIStream;
1857     IStream_AddRef(pIStream);
1858     This->initialized = TRUE;
1859
1860 exit:
1861     LeaveCriticalSection(&This->lock);
1862     return hr;
1863 }
1864
1865 static HRESULT WINAPI TiffEncoder_GetContainerFormat(IWICBitmapEncoder *iface,
1866     GUID *pguidContainerFormat)
1867 {
1868     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
1869     return S_OK;
1870 }
1871
1872 static HRESULT WINAPI TiffEncoder_GetEncoderInfo(IWICBitmapEncoder *iface,
1873     IWICBitmapEncoderInfo **ppIEncoderInfo)
1874 {
1875     FIXME("(%p,%p): stub\n", iface, ppIEncoderInfo);
1876     return E_NOTIMPL;
1877 }
1878
1879 static HRESULT WINAPI TiffEncoder_SetColorContexts(IWICBitmapEncoder *iface,
1880     UINT cCount, IWICColorContext **ppIColorContext)
1881 {
1882     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
1883     return E_NOTIMPL;
1884 }
1885
1886 static HRESULT WINAPI TiffEncoder_SetPalette(IWICBitmapEncoder *iface, IWICPalette *pIPalette)
1887 {
1888     TRACE("(%p,%p)\n", iface, pIPalette);
1889     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1890 }
1891
1892 static HRESULT WINAPI TiffEncoder_SetThumbnail(IWICBitmapEncoder *iface, IWICBitmapSource *pIThumbnail)
1893 {
1894     TRACE("(%p,%p)\n", iface, pIThumbnail);
1895     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1896 }
1897
1898 static HRESULT WINAPI TiffEncoder_SetPreview(IWICBitmapEncoder *iface, IWICBitmapSource *pIPreview)
1899 {
1900     TRACE("(%p,%p)\n", iface, pIPreview);
1901     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1902 }
1903
1904 static HRESULT WINAPI TiffEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
1905     IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
1906 {
1907     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
1908     TiffFrameEncode *result;
1909
1910     HRESULT hr=S_OK;
1911
1912     TRACE("(%p,%p,%p)\n", iface, ppIFrameEncode, ppIEncoderOptions);
1913
1914     EnterCriticalSection(&This->lock);
1915
1916     if (!This->initialized || This->committed)
1917     {
1918         hr = WINCODEC_ERR_WRONGSTATE;
1919     }
1920     else if (This->num_frames != This->num_frames_committed)
1921     {
1922         FIXME("New frame created before previous frame was committed\n");
1923         hr = E_FAIL;
1924     }
1925
1926     if (SUCCEEDED(hr))
1927     {
1928         PROPBAG2 opts[2]= {{0}};
1929         opts[0].pstrName = (LPOLESTR)wszTiffCompressionMethod;
1930         opts[0].vt = VT_UI1;
1931         opts[0].dwType = PROPBAG2_TYPE_DATA;
1932
1933         opts[1].pstrName = (LPOLESTR)wszCompressionQuality;
1934         opts[1].vt = VT_R4;
1935         opts[1].dwType = PROPBAG2_TYPE_DATA;
1936
1937         hr = CreatePropertyBag2(opts, 2, ppIEncoderOptions);
1938
1939         if (SUCCEEDED(hr))
1940         {
1941             VARIANT v;
1942             VariantInit(&v);
1943             V_VT(&v) = VT_UI1;
1944             V_UNION(&v, bVal) = WICTiffCompressionDontCare;
1945             hr = IPropertyBag2_Write(*ppIEncoderOptions, 1, opts, &v);
1946             VariantClear(&v);
1947             if (FAILED(hr))
1948             {
1949                 IPropertyBag2_Release(*ppIEncoderOptions);
1950                 *ppIEncoderOptions = NULL;
1951             }
1952         }
1953     }
1954
1955     if (SUCCEEDED(hr))
1956     {
1957         result = HeapAlloc(GetProcessHeap(), 0, sizeof(*result));
1958
1959         if (result)
1960         {
1961             result->IWICBitmapFrameEncode_iface.lpVtbl = &TiffFrameEncode_Vtbl;
1962             result->ref = 1;
1963             result->parent = This;
1964             result->initialized = FALSE;
1965             result->info_written = FALSE;
1966             result->committed = FALSE;
1967             result->format = NULL;
1968             result->width = 0;
1969             result->height = 0;
1970             result->xres = 0.0;
1971             result->yres = 0.0;
1972             result->lines_written = 0;
1973
1974             IWICBitmapEncoder_AddRef(iface);
1975             *ppIFrameEncode = &result->IWICBitmapFrameEncode_iface;
1976
1977             if (This->num_frames != 0)
1978                 pTIFFWriteDirectory(This->tiff);
1979
1980             This->num_frames++;
1981         }
1982         else
1983             hr = E_OUTOFMEMORY;
1984
1985         if (FAILED(hr))
1986         {
1987             IPropertyBag2_Release(*ppIEncoderOptions);
1988             *ppIEncoderOptions = NULL;
1989         }
1990     }
1991
1992     LeaveCriticalSection(&This->lock);
1993
1994     return hr;
1995 }
1996
1997 static HRESULT WINAPI TiffEncoder_Commit(IWICBitmapEncoder *iface)
1998 {
1999     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2000
2001     TRACE("(%p)\n", iface);
2002
2003     EnterCriticalSection(&This->lock);
2004
2005     if (!This->initialized || This->committed)
2006     {
2007         LeaveCriticalSection(&This->lock);
2008         return WINCODEC_ERR_WRONGSTATE;
2009     }
2010
2011     pTIFFClose(This->tiff);
2012     IStream_Release(This->stream);
2013     This->stream = NULL;
2014     This->tiff = NULL;
2015
2016     This->committed = TRUE;
2017
2018     LeaveCriticalSection(&This->lock);
2019
2020     return S_OK;
2021 }
2022
2023 static HRESULT WINAPI TiffEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
2024     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
2025 {
2026     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryWriter);
2027     return E_NOTIMPL;
2028 }
2029
2030 static const IWICBitmapEncoderVtbl TiffEncoder_Vtbl = {
2031     TiffEncoder_QueryInterface,
2032     TiffEncoder_AddRef,
2033     TiffEncoder_Release,
2034     TiffEncoder_Initialize,
2035     TiffEncoder_GetContainerFormat,
2036     TiffEncoder_GetEncoderInfo,
2037     TiffEncoder_SetColorContexts,
2038     TiffEncoder_SetPalette,
2039     TiffEncoder_SetThumbnail,
2040     TiffEncoder_SetPreview,
2041     TiffEncoder_CreateNewFrame,
2042     TiffEncoder_Commit,
2043     TiffEncoder_GetMetadataQueryWriter
2044 };
2045
2046 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
2047 {
2048     TiffEncoder *This;
2049     HRESULT ret;
2050
2051     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
2052
2053     *ppv = NULL;
2054
2055     if (!load_libtiff())
2056     {
2057         ERR("Failed writing TIFF because unable to load %s\n",SONAME_LIBTIFF);
2058         return E_FAIL;
2059     }
2060
2061     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffEncoder));
2062     if (!This) return E_OUTOFMEMORY;
2063
2064     This->IWICBitmapEncoder_iface.lpVtbl = &TiffEncoder_Vtbl;
2065     This->ref = 1;
2066     This->stream = NULL;
2067     InitializeCriticalSection(&This->lock);
2068     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffEncoder.lock");
2069     This->tiff = NULL;
2070     This->initialized = FALSE;
2071     This->num_frames = 0;
2072     This->num_frames_committed = 0;
2073     This->committed = FALSE;
2074
2075     ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
2076     IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
2077
2078     return ret;
2079 }
2080
2081 #else /* !SONAME_LIBTIFF */
2082
2083 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
2084 {
2085     ERR("Trying to load TIFF picture, but Wine was compiled without TIFF support.\n");
2086     return E_FAIL;
2087 }
2088
2089 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
2090 {
2091     ERR("Trying to save TIFF picture, but Wine was compiled without TIFF support.\n");
2092     return E_FAIL;
2093 }
2094
2095 #endif