dll/win32/windowscodecs/tiffformat.c

   1 /*
   2  * Copyright 2010 Vincent Povirk for CodeWeavers
   3  * Copyright 2016 Dmitry Timoshkov
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #include <stdarg.h>
  24 #ifdef HAVE_UNISTD_H
  25 #include <unistd.h>
  26 #endif
  27 #ifdef HAVE_TIFFIO_H
  28 #include <tiffio.h>
  29 #endif
  30
  31 #define COBJMACROS
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "objbase.h"
  36
  37 #include "wincodecs_private.h"
  38
  39 #include "wine/debug.h"
  40 #include "wine/library.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  43
  44 #ifdef SONAME_LIBTIFF
  45
  46 /* Workaround for broken libtiff 4.x headers on some 64-bit hosts which
  47  * define TIFF_UINT64_T/toff_t as 32-bit for 32-bit builds, while they
  48  * are supposed to be always 64-bit.
  49  * TIFF_UINT64_T doesn't exist in libtiff 3.x, it was introduced in 4.x.
  50  */
  51 #ifdef TIFF_UINT64_T
  52 # undef toff_t
  53 # define toff_t UINT64
  54 #endif
  55
  56 static CRITICAL_SECTION init_tiff_cs;
  57 static CRITICAL_SECTION_DEBUG init_tiff_cs_debug =
  58 {
  59     0, 0, &init_tiff_cs,
  60     { &init_tiff_cs_debug.ProcessLocksList,
  61       &init_tiff_cs_debug.ProcessLocksList },
  62     0, 0, { (DWORD_PTR)(__FILE__ ": init_tiff_cs") }
  63 };
  64 static CRITICAL_SECTION init_tiff_cs = { &init_tiff_cs_debug, -1, 0, 0, 0, 0 };
  65
  66 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};
  67 static const WCHAR wszCompressionQuality[] = {'C','o','m','p','r','e','s','s','i','o','n','Q','u','a','l','i','t','y',0};
  68
  69 static void *libtiff_handle;
  70 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
  71 MAKE_FUNCPTR(TIFFClientOpen);
  72 MAKE_FUNCPTR(TIFFClose);
  73 MAKE_FUNCPTR(TIFFCurrentDirOffset);
  74 MAKE_FUNCPTR(TIFFGetField);
  75 MAKE_FUNCPTR(TIFFIsByteSwapped);
  76 MAKE_FUNCPTR(TIFFNumberOfDirectories);
  77 MAKE_FUNCPTR(TIFFReadDirectory);
  78 MAKE_FUNCPTR(TIFFReadEncodedStrip);
  79 MAKE_FUNCPTR(TIFFReadEncodedTile);
  80 MAKE_FUNCPTR(TIFFSetDirectory);
  81 MAKE_FUNCPTR(TIFFSetField);
  82 MAKE_FUNCPTR(TIFFWriteDirectory);
  83 MAKE_FUNCPTR(TIFFWriteScanline);
  84 #undef MAKE_FUNCPTR
  85
  86 static void *load_libtiff(void)
  87 {
  88     void *result;
  89
  90     EnterCriticalSection(&init_tiff_cs);
  91
  92     if (!libtiff_handle &&
  93         (libtiff_handle = wine_dlopen(SONAME_LIBTIFF, RTLD_NOW, NULL, 0)) != NULL)
  94     {
  95         void * (*pTIFFSetWarningHandler)(void *);
  96         void * (*pTIFFSetWarningHandlerExt)(void *);
  97
  98 #define LOAD_FUNCPTR(f) \
  99     if((p##f = wine_dlsym(libtiff_handle, #f, NULL, 0)) == NULL) { \
 100         ERR("failed to load symbol %s\n", #f); \
 101         libtiff_handle = NULL; \
 102         LeaveCriticalSection(&init_tiff_cs); \
 103         return NULL; \
 104     }
 105         LOAD_FUNCPTR(TIFFClientOpen);
 106         LOAD_FUNCPTR(TIFFClose);
 107         LOAD_FUNCPTR(TIFFCurrentDirOffset);
 108         LOAD_FUNCPTR(TIFFGetField);
 109         LOAD_FUNCPTR(TIFFIsByteSwapped);
 110         LOAD_FUNCPTR(TIFFNumberOfDirectories);
 111         LOAD_FUNCPTR(TIFFReadDirectory);
 112         LOAD_FUNCPTR(TIFFReadEncodedStrip);
 113         LOAD_FUNCPTR(TIFFReadEncodedTile);
 114         LOAD_FUNCPTR(TIFFSetDirectory);
 115         LOAD_FUNCPTR(TIFFSetField);
 116         LOAD_FUNCPTR(TIFFWriteDirectory);
 117         LOAD_FUNCPTR(TIFFWriteScanline);
 118 #undef LOAD_FUNCPTR
 119
 120         if ((pTIFFSetWarningHandler = wine_dlsym(libtiff_handle, "TIFFSetWarningHandler", NULL, 0)))
 121             pTIFFSetWarningHandler(NULL);
 122         if ((pTIFFSetWarningHandlerExt = wine_dlsym(libtiff_handle, "TIFFSetWarningHandlerExt", NULL, 0)))
 123             pTIFFSetWarningHandlerExt(NULL);
 124     }
 125
 126     result = libtiff_handle;
 127
 128     LeaveCriticalSection(&init_tiff_cs);
 129     return result;
 130 }
 131
 132 static tsize_t tiff_stream_read(thandle_t client_data, tdata_t data, tsize_t size)
 133 {
 134     IStream *stream = (IStream*)client_data;
 135     ULONG bytes_read;
 136     HRESULT hr;
 137
 138     hr = IStream_Read(stream, data, size, &bytes_read);
 139     if (FAILED(hr)) bytes_read = 0;
 140     return bytes_read;
 141 }
 142
 143 static tsize_t tiff_stream_write(thandle_t client_data, tdata_t data, tsize_t size)
 144 {
 145     IStream *stream = (IStream*)client_data;
 146     ULONG bytes_written;
 147     HRESULT hr;
 148
 149     hr = IStream_Write(stream, data, size, &bytes_written);
 150     if (FAILED(hr)) bytes_written = 0;
 151     return bytes_written;
 152 }
 153
 154 static toff_t tiff_stream_seek(thandle_t client_data, toff_t offset, int whence)
 155 {
 156     IStream *stream = (IStream*)client_data;
 157     LARGE_INTEGER move;
 158     DWORD origin;
 159     ULARGE_INTEGER new_position;
 160     HRESULT hr;
 161
 162     move.QuadPart = offset;
 163     switch (whence)
 164     {
 165         case SEEK_SET:
 166             origin = STREAM_SEEK_SET;
 167             break;
 168         case SEEK_CUR:
 169             origin = STREAM_SEEK_CUR;
 170             break;
 171         case SEEK_END:
 172             origin = STREAM_SEEK_END;
 173             break;
 174         default:
 175             ERR("unknown whence value %i\n", whence);
 176             return -1;
 177     }
 178
 179     hr = IStream_Seek(stream, move, origin, &new_position);
 180     if (SUCCEEDED(hr)) return new_position.QuadPart;
 181     else return -1;
 182 }
 183
 184 static int tiff_stream_close(thandle_t client_data)
 185 {
 186     /* Caller is responsible for releasing the stream object. */
 187     return 0;
 188 }
 189
 190 static toff_t tiff_stream_size(thandle_t client_data)
 191 {
 192     IStream *stream = (IStream*)client_data;
 193     STATSTG statstg;
 194     HRESULT hr;
 195
 196     hr = IStream_Stat(stream, &statstg, STATFLAG_NONAME);
 197
 198     if (SUCCEEDED(hr)) return statstg.cbSize.QuadPart;
 199     else return -1;
 200 }
 201
 202 static int tiff_stream_map(thandle_t client_data, tdata_t *addr, toff_t *size)
 203 {
 204     /* Cannot mmap streams */
 205     return 0;
 206 }
 207
 208 static void tiff_stream_unmap(thandle_t client_data, tdata_t addr, toff_t size)
 209 {
 210     /* No need to ever do this, since we can't map things. */
 211 }
 212
 213 static TIFF* tiff_open_stream(IStream *stream, const char *mode)
 214 {
 215     LARGE_INTEGER zero;
 216
 217     zero.QuadPart = 0;
 218     IStream_Seek(stream, zero, STREAM_SEEK_SET, NULL);
 219
 220     return pTIFFClientOpen("<IStream object>", mode, stream, tiff_stream_read,
 221         tiff_stream_write, (void *)tiff_stream_seek, tiff_stream_close,
 222         (void *)tiff_stream_size, (void *)tiff_stream_map, (void *)tiff_stream_unmap);
 223 }
 224
 225 typedef struct {
 226     IWICBitmapDecoder IWICBitmapDecoder_iface;
 227     LONG ref;
 228     IStream *stream;
 229     CRITICAL_SECTION lock; /* Must be held when tiff is used or initialized is set */
 230     TIFF *tiff;
 231     BOOL initialized;
 232 } TiffDecoder;
 233
 234 typedef struct {
 235     const WICPixelFormatGUID *format;
 236     int bps;
 237     int samples;
 238     int bpp, source_bpp;
 239     int planar;
 240     int indexed;
 241     int reverse_bgr;
 242     int invert_grayscale;
 243     UINT width, height;
 244     UINT tile_width, tile_height;
 245     UINT tile_stride;
 246     UINT tile_size;
 247     int tiled;
 248     UINT tiles_across;
 249     UINT resolution_unit;
 250     float xres, yres;
 251 } tiff_decode_info;
 252
 253 typedef struct {
 254     IWICBitmapFrameDecode IWICBitmapFrameDecode_iface;
 255     IWICMetadataBlockReader IWICMetadataBlockReader_iface;
 256     LONG ref;
 257     TiffDecoder *parent;
 258     UINT index;
 259     tiff_decode_info decode_info;
 260     INT cached_tile_x, cached_tile_y;
 261     BYTE *cached_tile;
 262 } TiffFrameDecode;
 263
 264 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl;
 265 static const IWICMetadataBlockReaderVtbl TiffFrameDecode_BlockVtbl;
 266
 267 static inline TiffDecoder *impl_from_IWICBitmapDecoder(IWICBitmapDecoder *iface)
 268 {
 269     return CONTAINING_RECORD(iface, TiffDecoder, IWICBitmapDecoder_iface);
 270 }
 271
 272 static inline TiffFrameDecode *impl_from_IWICBitmapFrameDecode(IWICBitmapFrameDecode *iface)
 273 {
 274     return CONTAINING_RECORD(iface, TiffFrameDecode, IWICBitmapFrameDecode_iface);
 275 }
 276
 277 static inline TiffFrameDecode *impl_from_IWICMetadataBlockReader(IWICMetadataBlockReader *iface)
 278 {
 279     return CONTAINING_RECORD(iface, TiffFrameDecode, IWICMetadataBlockReader_iface);
 280 }
 281
 282 static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
 283 {
 284     uint16 photometric, bps, samples, planar;
 285     uint16 extra_sample_count, extra_sample, *extra_samples;
 286     int ret;
 287
 288     decode_info->indexed = 0;
 289     decode_info->reverse_bgr = 0;
 290     decode_info->invert_grayscale = 0;
 291     decode_info->tiled = 0;
 292
 293     ret = pTIFFGetField(tiff, TIFFTAG_PHOTOMETRIC, &photometric);
 294     if (!ret)
 295     {
 296         WARN("missing PhotometricInterpretation tag\n");
 297         return E_FAIL;
 298     }
 299
 300     ret = pTIFFGetField(tiff, TIFFTAG_BITSPERSAMPLE, &bps);
 301     if (!ret) bps = 1;
 302     decode_info->bps = bps;
 303
 304     ret = pTIFFGetField(tiff, TIFFTAG_SAMPLESPERPIXEL, &samples);
 305     if (!ret) samples = 1;
 306     decode_info->samples = samples;
 307
 308     if (samples == 1)
 309         planar = 1;
 310     else
 311     {
 312         ret = pTIFFGetField(tiff, TIFFTAG_PLANARCONFIG, &planar);
 313         if (!ret) planar = 1;
 314         if (planar != 1)
 315         {
 316             FIXME("unhandled planar configuration %u\n", planar);
 317             return E_FAIL;
 318         }
 319     }
 320     decode_info->planar = planar;
 321
 322     TRACE("planar %u, photometric %u, samples %u, bps %u\n", planar, photometric, samples, bps);
 323
 324     switch(photometric)
 325     {
 326     case 0: /* WhiteIsZero */
 327         decode_info->invert_grayscale = 1;
 328         /* fall through */
 329     case 1: /* BlackIsZero */
 330         if (samples == 2)
 331         {
 332             ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
 333             if (!ret)
 334             {
 335                 extra_sample_count = 1;
 336                 extra_sample = 0;
 337                 extra_samples = &extra_sample;
 338             }
 339         }
 340         else if (samples != 1)
 341         {
 342             FIXME("unhandled %dbpp sample count %u\n", bps, samples);
 343             return E_FAIL;
 344         }
 345
 346         decode_info->bpp = bps * samples;
 347         decode_info->source_bpp = decode_info->bpp;
 348         switch (bps)
 349         {
 350         case 1:
 351             if (samples != 1)
 352             {
 353                 FIXME("unhandled 1bpp sample count %u\n", samples);
 354                 return E_FAIL;
 355             }
 356             decode_info->format = &GUID_WICPixelFormatBlackWhite;
 357             break;
 358         case 4:
 359             if (samples != 1)
 360             {
 361                 FIXME("unhandled 4bpp grayscale sample count %u\n", samples);
 362                 return E_FAIL;
 363             }
 364             decode_info->format = &GUID_WICPixelFormat4bppGray;
 365             break;
 366         case 8:
 367             if (samples == 1)
 368                 decode_info->format = &GUID_WICPixelFormat8bppGray;
 369             else
 370             {
 371                 decode_info->bpp = 32;
 372
 373                 switch(extra_samples[0])
 374                 {
 375                 case 1: /* Associated (pre-multiplied) alpha data */
 376                     decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
 377                     break;
 378                 case 0: /* Unspecified data */
 379                 case 2: /* Unassociated alpha data */
 380                     decode_info->format = &GUID_WICPixelFormat32bppBGRA;
 381                     break;
 382                 default:
 383                     FIXME("unhandled extra sample type %u\n", extra_samples[0]);
 384                     return E_FAIL;
 385                 }
 386             }
 387             break;
 388         case 16:
 389             if (samples != 1)
 390             {
 391                 FIXME("unhandled 16bpp grayscale sample count %u\n", samples);
 392                 return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 393             }
 394             decode_info->format = &GUID_WICPixelFormat16bppGray;
 395             break;
 396         case 32:
 397             if (samples != 1)
 398             {
 399                 FIXME("unhandled 32bpp grayscale sample count %u\n", samples);
 400                 return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 401             }
 402             decode_info->format = &GUID_WICPixelFormat32bppGrayFloat;
 403             break;
 404         default:
 405             WARN("unhandled greyscale bit count %u\n", bps);
 406             return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 407         }
 408         break;
 409     case 2: /* RGB */
 410         if (samples == 4)
 411         {
 412             ret = pTIFFGetField(tiff, TIFFTAG_EXTRASAMPLES, &extra_sample_count, &extra_samples);
 413             if (!ret)
 414             {
 415                 extra_sample_count = 1;
 416                 extra_sample = 0;
 417                 extra_samples = &extra_sample;
 418             }
 419         }
 420         else if (samples != 3)
 421         {
 422             FIXME("unhandled RGB sample count %u\n", samples);
 423             return E_FAIL;
 424         }
 425
 426         decode_info->bpp = max(bps, 8) * samples;
 427         decode_info->source_bpp = bps * samples;
 428         switch(bps)
 429         {
 430         case 1:
 431         case 4:
 432         case 8:
 433             decode_info->reverse_bgr = 1;
 434             if (samples == 3)
 435                 decode_info->format = &GUID_WICPixelFormat24bppBGR;
 436             else
 437                 switch(extra_samples[0])
 438                 {
 439                 case 1: /* Associated (pre-multiplied) alpha data */
 440                     decode_info->format = &GUID_WICPixelFormat32bppPBGRA;
 441                     break;
 442                 case 0: /* Unspecified data */
 443                 case 2: /* Unassociated alpha data */
 444                     decode_info->format = &GUID_WICPixelFormat32bppBGRA;
 445                     break;
 446                 default:
 447                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 448                     return E_FAIL;
 449                 }
 450             break;
 451         case 16:
 452             if (samples == 3)
 453                 decode_info->format = &GUID_WICPixelFormat48bppRGB;
 454             else
 455                 switch(extra_samples[0])
 456                 {
 457                 case 1: /* Associated (pre-multiplied) alpha data */
 458                     decode_info->format = &GUID_WICPixelFormat64bppPRGBA;
 459                     break;
 460                 case 0: /* Unspecified data */
 461                 case 2: /* Unassociated alpha data */
 462                     decode_info->format = &GUID_WICPixelFormat64bppRGBA;
 463                     break;
 464                 default:
 465                     FIXME("unhandled extra sample type %i\n", extra_samples[0]);
 466                     return E_FAIL;
 467                 }
 468             break;
 469         case 32:
 470             if (samples != 4)
 471             {
 472                 FIXME("unhandled 32bpp RGB sample count %u\n", samples);
 473                 return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 474             }
 475             decode_info->format = &GUID_WICPixelFormat128bppRGBAFloat;
 476             break;
 477         default:
 478             WARN("unhandled RGB bit count %u\n", bps);
 479             return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 480         }
 481         break;
 482     case 3: /* RGB Palette */
 483         if (samples != 1)
 484         {
 485             FIXME("unhandled indexed sample count %u\n", samples);
 486             return E_FAIL;
 487         }
 488
 489         decode_info->indexed = 1;
 490         decode_info->bpp = bps;
 491         switch (bps)
 492         {
 493         case 1:
 494             decode_info->format = &GUID_WICPixelFormat1bppIndexed;
 495             break;
 496         case 2:
 497             decode_info->format = &GUID_WICPixelFormat2bppIndexed;
 498             break;
 499         case 4:
 500             decode_info->format = &GUID_WICPixelFormat4bppIndexed;
 501             break;
 502         case 8:
 503             decode_info->format = &GUID_WICPixelFormat8bppIndexed;
 504             break;
 505         default:
 506             FIXME("unhandled indexed bit count %u\n", bps);
 507             return E_FAIL;
 508         }
 509         break;
 510
 511     case 5: /* Separated */
 512         if (samples != 4)
 513         {
 514             FIXME("unhandled Separated sample count %u\n", samples);
 515             return E_FAIL;
 516         }
 517
 518         decode_info->bpp = bps * samples;
 519         switch(bps)
 520         {
 521         case 8:
 522             decode_info->format = &GUID_WICPixelFormat32bppCMYK;
 523             break;
 524         case 16:
 525             decode_info->format = &GUID_WICPixelFormat64bppCMYK;
 526             break;
 527
 528         default:
 529             WARN("unhandled Separated bit count %u\n", bps);
 530             return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
 531         }
 532         break;
 533
 534     case 4: /* Transparency mask */
 535     case 6: /* YCbCr */
 536     case 8: /* CIELab */
 537     default:
 538         FIXME("unhandled PhotometricInterpretation %u\n", photometric);
 539         return E_FAIL;
 540     }
 541
 542     ret = pTIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &decode_info->width);
 543     if (!ret)
 544     {
 545         WARN("missing image width\n");
 546         return E_FAIL;
 547     }
 548
 549     ret = pTIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &decode_info->height);
 550     if (!ret)
 551     {
 552         WARN("missing image length\n");
 553         return E_FAIL;
 554     }
 555
 556     if ((ret = pTIFFGetField(tiff, TIFFTAG_TILEWIDTH, &decode_info->tile_width)))
 557     {
 558         decode_info->tiled = 1;
 559
 560         ret = pTIFFGetField(tiff, TIFFTAG_TILELENGTH, &decode_info->tile_height);
 561         if (!ret)
 562         {
 563             WARN("missing tile height\n");
 564             return E_FAIL;
 565         }
 566
 567         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 568         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 569         decode_info->tiles_across = (decode_info->width + decode_info->tile_width - 1) / decode_info->tile_width;
 570     }
 571     else if ((ret = pTIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &decode_info->tile_height)))
 572     {
 573         if (decode_info->tile_height > decode_info->height)
 574             decode_info->tile_height = decode_info->height;
 575         decode_info->tile_width = decode_info->width;
 576         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 577         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 578     }
 579     else
 580     {
 581         /* Some broken TIFF files have a single strip and lack the RowsPerStrip tag */
 582         decode_info->tile_height = decode_info->height;
 583         decode_info->tile_width = decode_info->width;
 584         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 585         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 586     }
 587
 588     decode_info->resolution_unit = 0;
 589     pTIFFGetField(tiff, TIFFTAG_RESOLUTIONUNIT, &decode_info->resolution_unit);
 590
 591     ret = pTIFFGetField(tiff, TIFFTAG_XRESOLUTION, &decode_info->xres);
 592     if (!ret)
 593     {
 594         WARN("missing X resolution\n");
 595     }
 596     /* Emulate the behavior of current libtiff versions (libtiff commit a39f6131)
 597      * yielding 0 instead of INFINITY for IFD_RATIONAL fields with denominator 0. */
 598     if (!isfinite(decode_info->xres))
 599     {
 600         decode_info->xres = 0.0;
 601     }
 602
 603     ret = pTIFFGetField(tiff, TIFFTAG_YRESOLUTION, &decode_info->yres);
 604     if (!ret)
 605     {
 606         WARN("missing Y resolution\n");
 607     }
 608     if (!isfinite(decode_info->yres))
 609     {
 610         decode_info->yres = 0.0;
 611     }
 612
 613     return S_OK;
 614 }
 615
 616 static HRESULT WINAPI TiffDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
 617     void **ppv)
 618 {
 619     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 620     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 621
 622     if (!ppv) return E_INVALIDARG;
 623
 624     if (IsEqualIID(&IID_IUnknown, iid) ||
 625         IsEqualIID(&IID_IWICBitmapDecoder, iid))
 626     {
 627         *ppv = &This->IWICBitmapDecoder_iface;
 628     }
 629     else
 630     {
 631         *ppv = NULL;
 632         return E_NOINTERFACE;
 633     }
 634
 635     IUnknown_AddRef((IUnknown*)*ppv);
 636     return S_OK;
 637 }
 638
 639 static ULONG WINAPI TiffDecoder_AddRef(IWICBitmapDecoder *iface)
 640 {
 641     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 642     ULONG ref = InterlockedIncrement(&This->ref);
 643
 644     TRACE("(%p) refcount=%u\n", iface, ref);
 645
 646     return ref;
 647 }
 648
 649 static ULONG WINAPI TiffDecoder_Release(IWICBitmapDecoder *iface)
 650 {
 651     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 652     ULONG ref = InterlockedDecrement(&This->ref);
 653
 654     TRACE("(%p) refcount=%u\n", iface, ref);
 655
 656     if (ref == 0)
 657     {
 658         if (This->tiff) pTIFFClose(This->tiff);
 659         if (This->stream) IStream_Release(This->stream);
 660         This->lock.DebugInfo->Spare[0] = 0;
 661         DeleteCriticalSection(&This->lock);
 662         HeapFree(GetProcessHeap(), 0, This);
 663     }
 664
 665     return ref;
 666 }
 667
 668 static HRESULT WINAPI TiffDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
 669     DWORD *capability)
 670 {
 671     HRESULT hr;
 672
 673     TRACE("(%p,%p,%p)\n", iface, stream, capability);
 674
 675     if (!stream || !capability) return E_INVALIDARG;
 676
 677     hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
 678     if (hr != S_OK) return hr;
 679
 680     *capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
 681                   WICBitmapDecoderCapabilityCanDecodeSomeImages |
 682                   WICBitmapDecoderCapabilityCanEnumerateMetadata;
 683     return S_OK;
 684 }
 685
 686 static HRESULT WINAPI TiffDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
 687     WICDecodeOptions cacheOptions)
 688 {
 689     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 690     TIFF *tiff;
 691     tiff_decode_info decode_info;
 692     HRESULT hr=S_OK;
 693
 694     TRACE("(%p,%p,%x)\n", iface, pIStream, cacheOptions);
 695
 696     EnterCriticalSection(&This->lock);
 697
 698     if (This->initialized)
 699     {
 700         hr = WINCODEC_ERR_WRONGSTATE;
 701         goto exit;
 702     }
 703
 704     tiff = tiff_open_stream(pIStream, "r");
 705     if (!tiff)
 706     {
 707         hr = E_FAIL;
 708         goto exit;
 709     }
 710
 711     /* make sure that TIFF format is supported */
 712     hr = tiff_get_decode_info(tiff, &decode_info);
 713     if (hr != S_OK)
 714     {
 715         pTIFFClose(tiff);
 716         goto exit;
 717     }
 718
 719     This->tiff = tiff;
 720     This->stream = pIStream;
 721     IStream_AddRef(pIStream);
 722     This->initialized = TRUE;
 723
 724 exit:
 725     LeaveCriticalSection(&This->lock);
 726     return hr;
 727 }
 728
 729 static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
 730     GUID *pguidContainerFormat)
 731 {
 732     if (!pguidContainerFormat) return E_INVALIDARG;
 733
 734     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
 735     return S_OK;
 736 }
 737
 738 static HRESULT WINAPI TiffDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
 739     IWICBitmapDecoderInfo **ppIDecoderInfo)
 740 {
 741     TRACE("(%p,%p)\n", iface, ppIDecoderInfo);
 742
 743     return get_decoder_info(&CLSID_WICTiffDecoder, ppIDecoderInfo);
 744 }
 745
 746 static HRESULT WINAPI TiffDecoder_CopyPalette(IWICBitmapDecoder *iface,
 747     IWICPalette *palette)
 748 {
 749     TRACE("(%p,%p)\n", iface, palette);
 750     return WINCODEC_ERR_PALETTEUNAVAILABLE;
 751 }
 752
 753 static HRESULT WINAPI TiffDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
 754     IWICMetadataQueryReader **ppIMetadataQueryReader)
 755 {
 756     TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
 757
 758     if (!ppIMetadataQueryReader) return E_INVALIDARG;
 759
 760     *ppIMetadataQueryReader = NULL;
 761     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 762 }
 763
 764 static HRESULT WINAPI TiffDecoder_GetPreview(IWICBitmapDecoder *iface,
 765     IWICBitmapSource **ppIBitmapSource)
 766 {
 767     TRACE("(%p,%p)\n", iface, ppIBitmapSource);
 768
 769     if (!ppIBitmapSource) return E_INVALIDARG;
 770
 771     *ppIBitmapSource = NULL;
 772     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 773 }
 774
 775 static HRESULT WINAPI TiffDecoder_GetColorContexts(IWICBitmapDecoder *iface,
 776     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 777 {
 778     FIXME("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
 779     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
 780 }
 781
 782 static HRESULT WINAPI TiffDecoder_GetThumbnail(IWICBitmapDecoder *iface,
 783     IWICBitmapSource **ppIThumbnail)
 784 {
 785     TRACE("(%p,%p)\n", iface, ppIThumbnail);
 786
 787     if (!ppIThumbnail) return E_INVALIDARG;
 788
 789     *ppIThumbnail = NULL;
 790     return WINCODEC_ERR_CODECNOTHUMBNAIL;
 791 }
 792
 793 static HRESULT WINAPI TiffDecoder_GetFrameCount(IWICBitmapDecoder *iface,
 794     UINT *pCount)
 795 {
 796     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 797
 798     if (!pCount) return E_INVALIDARG;
 799
 800     EnterCriticalSection(&This->lock);
 801     *pCount = This->tiff ? pTIFFNumberOfDirectories(This->tiff) : 0;
 802     LeaveCriticalSection(&This->lock);
 803
 804     TRACE("(%p) <-- %i\n", iface, *pCount);
 805
 806     return S_OK;
 807 }
 808
 809 static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
 810     UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
 811 {
 812     TiffDecoder *This = impl_from_IWICBitmapDecoder(iface);
 813     TiffFrameDecode *result;
 814     int res;
 815     tiff_decode_info decode_info;
 816     HRESULT hr;
 817
 818     TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
 819
 820     if (!This->tiff)
 821         return WINCODEC_ERR_FRAMEMISSING;
 822
 823     EnterCriticalSection(&This->lock);
 824     res = pTIFFSetDirectory(This->tiff, index);
 825     if (!res) hr = E_INVALIDARG;
 826     else hr = tiff_get_decode_info(This->tiff, &decode_info);
 827     LeaveCriticalSection(&This->lock);
 828
 829     if (SUCCEEDED(hr))
 830     {
 831         result = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffFrameDecode));
 832
 833         if (result)
 834         {
 835             result->IWICBitmapFrameDecode_iface.lpVtbl = &TiffFrameDecode_Vtbl;
 836             result->IWICMetadataBlockReader_iface.lpVtbl = &TiffFrameDecode_BlockVtbl;
 837             result->ref = 1;
 838             result->parent = This;
 839             result->index = index;
 840             result->decode_info = decode_info;
 841             result->cached_tile_x = -1;
 842             result->cached_tile = HeapAlloc(GetProcessHeap(), 0, decode_info.tile_size);
 843
 844             if (result->cached_tile)
 845                 *ppIBitmapFrame = &result->IWICBitmapFrameDecode_iface;
 846             else
 847             {
 848                 hr = E_OUTOFMEMORY;
 849                 HeapFree(GetProcessHeap(), 0, result);
 850             }
 851         }
 852         else hr = E_OUTOFMEMORY;
 853     }
 854
 855     if (FAILED(hr)) *ppIBitmapFrame = NULL;
 856
 857     return hr;
 858 }
 859
 860 static const IWICBitmapDecoderVtbl TiffDecoder_Vtbl = {
 861     TiffDecoder_QueryInterface,
 862     TiffDecoder_AddRef,
 863     TiffDecoder_Release,
 864     TiffDecoder_QueryCapability,
 865     TiffDecoder_Initialize,
 866     TiffDecoder_GetContainerFormat,
 867     TiffDecoder_GetDecoderInfo,
 868     TiffDecoder_CopyPalette,
 869     TiffDecoder_GetMetadataQueryReader,
 870     TiffDecoder_GetPreview,
 871     TiffDecoder_GetColorContexts,
 872     TiffDecoder_GetThumbnail,
 873     TiffDecoder_GetFrameCount,
 874     TiffDecoder_GetFrame
 875 };
 876
 877 static HRESULT WINAPI TiffFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
 878     void **ppv)
 879 {
 880     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 881     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 882
 883     if (!ppv) return E_INVALIDARG;
 884
 885     if (IsEqualIID(&IID_IUnknown, iid) ||
 886         IsEqualIID(&IID_IWICBitmapSource, iid) ||
 887         IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
 888     {
 889         *ppv = &This->IWICBitmapFrameDecode_iface;
 890     }
 891     else if (IsEqualIID(&IID_IWICMetadataBlockReader, iid))
 892     {
 893         *ppv = &This->IWICMetadataBlockReader_iface;
 894     }
 895     else
 896     {
 897         *ppv = NULL;
 898         return E_NOINTERFACE;
 899     }
 900
 901     IUnknown_AddRef((IUnknown*)*ppv);
 902     return S_OK;
 903 }
 904
 905 static ULONG WINAPI TiffFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
 906 {
 907     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 908     ULONG ref = InterlockedIncrement(&This->ref);
 909
 910     TRACE("(%p) refcount=%u\n", iface, ref);
 911
 912     return ref;
 913 }
 914
 915 static ULONG WINAPI TiffFrameDecode_Release(IWICBitmapFrameDecode *iface)
 916 {
 917     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 918     ULONG ref = InterlockedDecrement(&This->ref);
 919
 920     TRACE("(%p) refcount=%u\n", iface, ref);
 921
 922     if (ref == 0)
 923     {
 924         HeapFree(GetProcessHeap(), 0, This->cached_tile);
 925         HeapFree(GetProcessHeap(), 0, This);
 926     }
 927
 928     return ref;
 929 }
 930
 931 static HRESULT WINAPI TiffFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
 932     UINT *puiWidth, UINT *puiHeight)
 933 {
 934     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 935
 936     *puiWidth = This->decode_info.width;
 937     *puiHeight = This->decode_info.height;
 938
 939     TRACE("(%p) <-- %ux%u\n", iface, *puiWidth, *puiHeight);
 940
 941     return S_OK;
 942 }
 943
 944 static HRESULT WINAPI TiffFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
 945     WICPixelFormatGUID *pPixelFormat)
 946 {
 947     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 948
 949     memcpy(pPixelFormat, This->decode_info.format, sizeof(GUID));
 950
 951     TRACE("(%p) <-- %s\n", This, debugstr_guid(This->decode_info.format));
 952
 953     return S_OK;
 954 }
 955
 956 static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
 957     double *pDpiX, double *pDpiY)
 958 {
 959     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 960
 961     if (This->decode_info.xres == 0 || This->decode_info.yres == 0)
 962     {
 963         *pDpiX = *pDpiY = 96.0;
 964     }
 965     else
 966     {
 967         switch (This->decode_info.resolution_unit)
 968         {
 969         default:
 970             FIXME("unknown resolution unit %i\n", This->decode_info.resolution_unit);
 971             /* fall through */
 972         case 0: /* Not set */
 973         case 1: /* Relative measurements */
 974         case 2: /* Inch */
 975             *pDpiX = This->decode_info.xres;
 976             *pDpiY = This->decode_info.yres;
 977             break;
 978         case 3: /* Centimeter */
 979             *pDpiX = This->decode_info.xres * 2.54;
 980             *pDpiY = This->decode_info.yres * 2.54;
 981             break;
 982         }
 983     }
 984
 985     TRACE("(%p) <-- %f,%f unit=%i\n", iface, *pDpiX, *pDpiY, This->decode_info.resolution_unit);
 986
 987     return S_OK;
 988 }
 989
 990 static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
 991     IWICPalette *pIPalette)
 992 {
 993     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
 994     uint16 *red, *green, *blue;
 995     WICColor colors[256];
 996     int color_count, ret, i;
 997
 998     TRACE("(%p,%p)\n", iface, pIPalette);
 999
1000     color_count = 1<<This->decode_info.bps;
1001
1002     EnterCriticalSection(&This->parent->lock);
1003     ret = pTIFFGetField(This->parent->tiff, TIFFTAG_COLORMAP, &red, &green, &blue);
1004     LeaveCriticalSection(&This->parent->lock);
1005
1006     if (!ret)
1007     {
1008         WARN("Couldn't read color map\n");
1009         return WINCODEC_ERR_PALETTEUNAVAILABLE;
1010     }
1011
1012     for (i=0; i<color_count; i++)
1013     {
1014         colors[i] = 0xff000000 |
1015             ((red[i]<<8) & 0xff0000) |
1016             (green[i] & 0xff00) |
1017             ((blue[i]>>8) & 0xff);
1018     }
1019
1020     return IWICPalette_InitializeCustom(pIPalette, colors, color_count);
1021 }
1022
1023 static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)
1024 {
1025     tsize_t ret;
1026     int swap_bytes;
1027
1028     swap_bytes = pTIFFIsByteSwapped(This->parent->tiff);
1029
1030     ret = pTIFFSetDirectory(This->parent->tiff, This->index);
1031     if (ret == -1)
1032         return E_FAIL;
1033
1034     if (This->decode_info.tiled)
1035         ret = pTIFFReadEncodedTile(This->parent->tiff, tile_x + tile_y * This->decode_info.tiles_across, This->cached_tile, This->decode_info.tile_size);
1036     else
1037         ret = pTIFFReadEncodedStrip(This->parent->tiff, tile_y, This->cached_tile, This->decode_info.tile_size);
1038
1039     if (ret == -1)
1040         return E_FAIL;
1041
1042     /* 3bpp RGB */
1043     if (This->decode_info.source_bpp == 3 && This->decode_info.samples == 3 && This->decode_info.bpp == 24)
1044     {
1045         BYTE *srcdata, *src, *dst;
1046         DWORD x, y, count, width_bytes = (This->decode_info.tile_width * 3 + 7) / 8;
1047
1048         count = width_bytes * This->decode_info.tile_height;
1049
1050         srcdata = HeapAlloc(GetProcessHeap(), 0, count);
1051         if (!srcdata) return E_OUTOFMEMORY;
1052         memcpy(srcdata, This->cached_tile, count);
1053
1054         for (y = 0; y < This->decode_info.tile_height; y++)
1055         {
1056             src = srcdata + y * width_bytes;
1057             dst = This->cached_tile + y * This->decode_info.tile_width * 3;
1058
1059             for (x = 0; x < This->decode_info.tile_width; x += 8)
1060             {
1061                 dst[2] = (src[0] & 0x80) ? 0xff : 0; /* R */
1062                 dst[1] = (src[0] & 0x40) ? 0xff : 0; /* G */
1063                 dst[0] = (src[0] & 0x20) ? 0xff : 0; /* B */
1064                 if (x + 1 < This->decode_info.tile_width)
1065                 {
1066                     dst[5] = (src[0] & 0x10) ? 0xff : 0; /* R */
1067                     dst[4] = (src[0] & 0x08) ? 0xff : 0; /* G */
1068                     dst[3] = (src[0] & 0x04) ? 0xff : 0; /* B */
1069                 }
1070                 if (x + 2 < This->decode_info.tile_width)
1071                 {
1072                     dst[8] = (src[0] & 0x02) ? 0xff : 0; /* R */
1073                     dst[7] = (src[0] & 0x01) ? 0xff : 0; /* G */
1074                     dst[6]  = (src[1] & 0x80) ? 0xff : 0; /* B */
1075                 }
1076                 if (x + 3 < This->decode_info.tile_width)
1077                 {
1078                     dst[11] = (src[1] & 0x40) ? 0xff : 0; /* R */
1079                     dst[10] = (src[1] & 0x20) ? 0xff : 0; /* G */
1080                     dst[9]  = (src[1] & 0x10) ? 0xff : 0; /* B */
1081                 }
1082                 if (x + 4 < This->decode_info.tile_width)
1083                 {
1084                     dst[14] = (src[1] & 0x08) ? 0xff : 0; /* R */
1085                     dst[13] = (src[1] & 0x04) ? 0xff : 0; /* G */
1086                     dst[12] = (src[1] & 0x02) ? 0xff : 0; /* B */
1087                 }
1088                 if (x + 5 < This->decode_info.tile_width)
1089                 {
1090                     dst[17] = (src[1] & 0x01) ? 0xff : 0; /* R */
1091                     dst[16] = (src[2] & 0x80) ? 0xff : 0; /* G */
1092                     dst[15] = (src[2] & 0x40) ? 0xff : 0; /* B */
1093                 }
1094                 if (x + 6 < This->decode_info.tile_width)
1095                 {
1096                     dst[20] = (src[2] & 0x20) ? 0xff : 0; /* R */
1097                     dst[19] = (src[2] & 0x10) ? 0xff : 0; /* G */
1098                     dst[18] = (src[2] & 0x08) ? 0xff : 0; /* B */
1099                 }
1100                 if (x + 7 < This->decode_info.tile_width)
1101                 {
1102                     dst[23] = (src[2] & 0x04) ? 0xff : 0; /* R */
1103                     dst[22] = (src[2] & 0x02) ? 0xff : 0; /* G */
1104                     dst[21] = (src[2] & 0x01) ? 0xff : 0; /* B */
1105                 }
1106                 src += 3;
1107                 dst += 24;
1108             }
1109         }
1110
1111         HeapFree(GetProcessHeap(), 0, srcdata);
1112     }
1113     /* 12bpp RGB */
1114     else if (This->decode_info.source_bpp == 12 && This->decode_info.samples == 3 && This->decode_info.bpp == 24)
1115     {
1116         BYTE *srcdata, *src, *dst;
1117         DWORD x, y, count, width_bytes = (This->decode_info.tile_width * 12 + 7) / 8;
1118
1119         count = width_bytes * This->decode_info.tile_height;
1120
1121         srcdata = HeapAlloc(GetProcessHeap(), 0, count);
1122         if (!srcdata) return E_OUTOFMEMORY;
1123         memcpy(srcdata, This->cached_tile, count);
1124
1125         for (y = 0; y < This->decode_info.tile_height; y++)
1126         {
1127             src = srcdata + y * width_bytes;
1128             dst = This->cached_tile + y * This->decode_info.tile_width * 3;
1129
1130             for (x = 0; x < This->decode_info.tile_width; x += 2)
1131             {
1132                 dst[0] = ((src[1] & 0xf0) >> 4) * 17; /* B */
1133                 dst[1] = (src[0] & 0x0f) * 17; /* G */
1134                 dst[2] = ((src[0] & 0xf0) >> 4) * 17; /* R */
1135                 if (x + 1 < This->decode_info.tile_width)
1136                 {
1137                     dst[5] = (src[1] & 0x0f) * 17; /* B */
1138                     dst[4] = ((src[2] & 0xf0) >> 4) * 17; /* G */
1139                     dst[3] = (src[2] & 0x0f) * 17; /* R */
1140                 }
1141                 src += 3;
1142                 dst += 6;
1143             }
1144         }
1145
1146         HeapFree(GetProcessHeap(), 0, srcdata);
1147     }
1148     /* 4bpp RGBA */
1149     else if (This->decode_info.source_bpp == 4 && This->decode_info.samples == 4 && This->decode_info.bpp == 32)
1150     {
1151         BYTE *src, *dst;
1152         DWORD count;
1153
1154         /* 1 source byte expands to 2 BGRA samples */
1155         count = (This->decode_info.tile_width * This->decode_info.tile_height + 1) / 2;
1156
1157         src = This->cached_tile + count - 1;
1158         dst = This->cached_tile + This->decode_info.tile_size;
1159
1160         while (count--)
1161         {
1162             BYTE b = *src--;
1163
1164             dst -= 8;
1165             dst[2] = (b & 0x80) ? 0xff : 0; /* R */
1166             dst[1] = (b & 0x40) ? 0xff : 0; /* G */
1167             dst[0] = (b & 0x20) ? 0xff : 0; /* B */
1168             dst[3] = (b & 0x10) ? 0xff : 0; /* A */
1169             dst[6] = (b & 0x08) ? 0xff : 0; /* R */
1170             dst[5] = (b & 0x04) ? 0xff : 0; /* G */
1171             dst[4] = (b & 0x02) ? 0xff : 0; /* B */
1172             dst[7] = (b & 0x01) ? 0xff : 0; /* A */
1173         }
1174     }
1175     /* 16bpp RGBA */
1176     else if (This->decode_info.source_bpp == 16 && This->decode_info.samples == 4 && This->decode_info.bpp == 32)
1177     {
1178         BYTE *src, *dst;
1179         DWORD count = This->decode_info.tile_width * This->decode_info.tile_height;
1180
1181         src = This->cached_tile + count * 2;
1182         dst = This->cached_tile + This->decode_info.tile_size;
1183
1184         while (count--)
1185         {
1186             BYTE b[2];
1187
1188             src -= 2;
1189             dst -= 4;
1190
1191             b[0] = src[0];
1192             b[1] = src[1];
1193
1194             dst[0] = ((b[1] & 0xf0) >> 4) * 17; /* B */
1195             dst[1] = (b[0] & 0x0f) * 17; /* G */
1196             dst[2] = ((b[0] & 0xf0) >> 4) * 17; /* R */
1197             dst[3] = (b[1] & 0x0f) * 17; /* A */
1198         }
1199     }
1200     /* 8bpp grayscale with extra alpha */
1201     else if (This->decode_info.source_bpp == 16 && This->decode_info.samples == 2 && This->decode_info.bpp == 32)
1202     {
1203         BYTE *src;
1204         DWORD *dst, count = This->decode_info.tile_width * This->decode_info.tile_height;
1205
1206         src = This->cached_tile + This->decode_info.tile_width * This->decode_info.tile_height * 2 - 2;
1207         dst = (DWORD *)(This->cached_tile + This->decode_info.tile_size - 4);
1208
1209         while (count--)
1210         {
1211             *dst-- = src[0] | (src[0] << 8) | (src[0] << 16) | (src[1] << 24);
1212             src -= 2;
1213         }
1214     }
1215
1216     if (This->decode_info.reverse_bgr)
1217     {
1218         if (This->decode_info.bps == 8)
1219         {
1220             UINT sample_count = This->decode_info.samples;
1221
1222             reverse_bgr8(sample_count, This->cached_tile, This->decode_info.tile_width,
1223                 This->decode_info.tile_height, This->decode_info.tile_width * sample_count);
1224         }
1225     }
1226
1227     if (swap_bytes && This->decode_info.bps > 8)
1228     {
1229         UINT row, i, samples_per_row;
1230         BYTE *sample, temp;
1231
1232         samples_per_row = This->decode_info.tile_width * This->decode_info.samples;
1233
1234         switch(This->decode_info.bps)
1235         {
1236         case 16:
1237             for (row=0; row<This->decode_info.tile_height; row++)
1238             {
1239                 sample = This->cached_tile + row * This->decode_info.tile_stride;
1240                 for (i=0; i<samples_per_row; i++)
1241                 {
1242                     temp = sample[1];
1243                     sample[1] = sample[0];
1244                     sample[0] = temp;
1245                     sample += 2;
1246                 }
1247             }
1248             break;
1249         default:
1250             ERR("unhandled bps for byte swap %u\n", This->decode_info.bps);
1251             return E_FAIL;
1252         }
1253     }
1254
1255     if (This->decode_info.invert_grayscale)
1256     {
1257         BYTE *byte, *end;
1258
1259         if (This->decode_info.samples != 1)
1260         {
1261             ERR("cannot invert grayscale image with %u samples\n", This->decode_info.samples);
1262             return E_FAIL;
1263         }
1264
1265         end = This->cached_tile+This->decode_info.tile_size;
1266
1267         for (byte = This->cached_tile; byte != end; byte++)
1268             *byte = ~(*byte);
1269     }
1270
1271     This->cached_tile_x = tile_x;
1272     This->cached_tile_y = tile_y;
1273
1274     return S_OK;
1275 }
1276
1277 static HRESULT WINAPI TiffFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
1278     const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
1279 {
1280     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1281     UINT min_tile_x, max_tile_x, min_tile_y, max_tile_y;
1282     UINT tile_x, tile_y;
1283     WICRect rc;
1284     HRESULT hr=S_OK;
1285     BYTE *dst_tilepos;
1286     UINT bytesperrow;
1287     WICRect rect;
1288
1289     TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
1290
1291     if (!prc)
1292     {
1293         rect.X = 0;
1294         rect.Y = 0;
1295         rect.Width = This->decode_info.width;
1296         rect.Height = This->decode_info.height;
1297         prc = &rect;
1298     }
1299     else
1300     {
1301         if (prc->X < 0 || prc->Y < 0 || prc->X+prc->Width > This->decode_info.width ||
1302             prc->Y+prc->Height > This->decode_info.height)
1303             return E_INVALIDARG;
1304     }
1305
1306     bytesperrow = ((This->decode_info.bpp * prc->Width)+7)/8;
1307
1308     if (cbStride < bytesperrow)
1309         return E_INVALIDARG;
1310
1311     if ((cbStride * (prc->Height-1)) + ((prc->Width * This->decode_info.bpp) + 7)/8 > cbBufferSize)
1312         return E_INVALIDARG;
1313
1314     min_tile_x = prc->X / This->decode_info.tile_width;
1315     min_tile_y = prc->Y / This->decode_info.tile_height;
1316     max_tile_x = (prc->X+prc->Width-1) / This->decode_info.tile_width;
1317     max_tile_y = (prc->Y+prc->Height-1) / This->decode_info.tile_height;
1318
1319     EnterCriticalSection(&This->parent->lock);
1320
1321     for (tile_x=min_tile_x; tile_x <= max_tile_x; tile_x++)
1322     {
1323         for (tile_y=min_tile_y; tile_y <= max_tile_y; tile_y++)
1324         {
1325             if (tile_x != This->cached_tile_x || tile_y != This->cached_tile_y)
1326             {
1327                 hr = TiffFrameDecode_ReadTile(This, tile_x, tile_y);
1328             }
1329
1330             if (SUCCEEDED(hr))
1331             {
1332                 if (prc->X < tile_x * This->decode_info.tile_width)
1333                     rc.X = 0;
1334                 else
1335                     rc.X = prc->X - tile_x * This->decode_info.tile_width;
1336
1337                 if (prc->Y < tile_y * This->decode_info.tile_height)
1338                     rc.Y = 0;
1339                 else
1340                     rc.Y = prc->Y - tile_y * This->decode_info.tile_height;
1341
1342                 if (prc->X+prc->Width > (tile_x+1) * This->decode_info.tile_width)
1343                     rc.Width = This->decode_info.tile_width - rc.X;
1344                 else if (prc->X < tile_x * This->decode_info.tile_width)
1345                     rc.Width = prc->Width + prc->X - tile_x * This->decode_info.tile_width;
1346                 else
1347                     rc.Width = prc->Width;
1348
1349                 if (prc->Y+prc->Height > (tile_y+1) * This->decode_info.tile_height)
1350                     rc.Height = This->decode_info.tile_height - rc.Y;
1351                 else if (prc->Y < tile_y * This->decode_info.tile_height)
1352                     rc.Height = prc->Height + prc->Y - tile_y * This->decode_info.tile_height;
1353                 else
1354                     rc.Height = prc->Height;
1355
1356                 dst_tilepos = pbBuffer + (cbStride * ((rc.Y + tile_y * This->decode_info.tile_height) - prc->Y)) +
1357                     ((This->decode_info.bpp * ((rc.X + tile_x * This->decode_info.tile_width) - prc->X) + 7) / 8);
1358
1359                 hr = copy_pixels(This->decode_info.bpp, This->cached_tile,
1360                     This->decode_info.tile_width, This->decode_info.tile_height, This->decode_info.tile_stride,
1361                     &rc, cbStride, cbBufferSize, dst_tilepos);
1362             }
1363
1364             if (FAILED(hr))
1365             {
1366                 LeaveCriticalSection(&This->parent->lock);
1367                 TRACE("<-- 0x%x\n", hr);
1368                 return hr;
1369             }
1370         }
1371     }
1372
1373     LeaveCriticalSection(&This->parent->lock);
1374
1375     return S_OK;
1376 }
1377
1378 static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
1379     IWICMetadataQueryReader **ppIMetadataQueryReader)
1380 {
1381     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1382
1383     TRACE("(%p,%p)\n", iface, ppIMetadataQueryReader);
1384
1385     if (!ppIMetadataQueryReader)
1386         return E_INVALIDARG;
1387
1388     return MetadataQueryReader_CreateInstance(&This->IWICMetadataBlockReader_iface, NULL, ppIMetadataQueryReader);
1389 }
1390
1391 static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
1392     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
1393 {
1394     TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
1395     const BYTE *profile;
1396     UINT len;
1397     HRESULT hr;
1398
1399     TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
1400
1401     EnterCriticalSection(&This->parent->lock);
1402
1403     if (pTIFFGetField(This->parent->tiff, TIFFTAG_ICCPROFILE, &len, &profile))
1404     {
1405         if (cCount && ppIColorContexts)
1406         {
1407             hr = IWICColorContext_InitializeFromMemory(*ppIColorContexts, profile, len);
1408             if (FAILED(hr))
1409             {
1410                 LeaveCriticalSection(&This->parent->lock);
1411                 return hr;
1412             }
1413         }
1414         *pcActualCount = 1;
1415     }
1416     else
1417         *pcActualCount = 0;
1418
1419     LeaveCriticalSection(&This->parent->lock);
1420
1421     return S_OK;
1422 }
1423
1424 static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
1425     IWICBitmapSource **ppIThumbnail)
1426 {
1427     TRACE("(%p,%p)\n", iface, ppIThumbnail);
1428
1429     if (!ppIThumbnail) return E_INVALIDARG;
1430
1431     *ppIThumbnail = NULL;
1432     return WINCODEC_ERR_CODECNOTHUMBNAIL;
1433 }
1434
1435 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl = {
1436     TiffFrameDecode_QueryInterface,
1437     TiffFrameDecode_AddRef,
1438     TiffFrameDecode_Release,
1439     TiffFrameDecode_GetSize,
1440     TiffFrameDecode_GetPixelFormat,
1441     TiffFrameDecode_GetResolution,
1442     TiffFrameDecode_CopyPalette,
1443     TiffFrameDecode_CopyPixels,
1444     TiffFrameDecode_GetMetadataQueryReader,
1445     TiffFrameDecode_GetColorContexts,
1446     TiffFrameDecode_GetThumbnail
1447 };
1448
1449 static HRESULT WINAPI TiffFrameDecode_Block_QueryInterface(IWICMetadataBlockReader *iface,
1450     REFIID iid, void **ppv)
1451 {
1452     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1453     return IWICBitmapFrameDecode_QueryInterface(&This->IWICBitmapFrameDecode_iface, iid, ppv);
1454 }
1455
1456 static ULONG WINAPI TiffFrameDecode_Block_AddRef(IWICMetadataBlockReader *iface)
1457 {
1458     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1459     return IWICBitmapFrameDecode_AddRef(&This->IWICBitmapFrameDecode_iface);
1460 }
1461
1462 static ULONG WINAPI TiffFrameDecode_Block_Release(IWICMetadataBlockReader *iface)
1463 {
1464     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1465     return IWICBitmapFrameDecode_Release(&This->IWICBitmapFrameDecode_iface);
1466 }
1467
1468 static HRESULT WINAPI TiffFrameDecode_Block_GetContainerFormat(IWICMetadataBlockReader *iface,
1469     GUID *guid)
1470 {
1471     TRACE("(%p,%p)\n", iface, guid);
1472
1473     if (!guid) return E_INVALIDARG;
1474
1475     *guid = GUID_ContainerFormatTiff;
1476     return S_OK;
1477 }
1478
1479 static HRESULT WINAPI TiffFrameDecode_Block_GetCount(IWICMetadataBlockReader *iface,
1480     UINT *count)
1481 {
1482     TRACE("%p,%p\n", iface, count);
1483
1484     if (!count) return E_INVALIDARG;
1485
1486     *count = 1;
1487     return S_OK;
1488 }
1489
1490 static HRESULT create_metadata_reader(TiffFrameDecode *This, IWICMetadataReader **reader)
1491 {
1492     HRESULT hr;
1493     LARGE_INTEGER dir_offset;
1494     IWICMetadataReader *metadata_reader;
1495     IWICPersistStream *persist;
1496
1497     /* FIXME: Use IWICComponentFactory_CreateMetadataReader once it's implemented */
1498
1499     hr = IfdMetadataReader_CreateInstance(&IID_IWICMetadataReader, (void **)&metadata_reader);
1500     if (FAILED(hr)) return hr;
1501
1502     hr = IWICMetadataReader_QueryInterface(metadata_reader, &IID_IWICPersistStream, (void **)&persist);
1503     if (FAILED(hr))
1504     {
1505         IWICMetadataReader_Release(metadata_reader);
1506         return hr;
1507     }
1508
1509     EnterCriticalSection(&This->parent->lock);
1510
1511     dir_offset.QuadPart = pTIFFCurrentDirOffset(This->parent->tiff);
1512     hr = IStream_Seek(This->parent->stream, dir_offset, STREAM_SEEK_SET, NULL);
1513     if (SUCCEEDED(hr))
1514     {
1515         BOOL byte_swapped = pTIFFIsByteSwapped(This->parent->tiff);
1516 #ifdef WORDS_BIGENDIAN
1517         DWORD persist_options = byte_swapped ? WICPersistOptionLittleEndian : WICPersistOptionBigEndian;
1518 #else
1519         DWORD persist_options = byte_swapped ? WICPersistOptionBigEndian : WICPersistOptionLittleEndian;
1520 #endif
1521         persist_options |= WICPersistOptionNoCacheStream;
1522         hr = IWICPersistStream_LoadEx(persist, This->parent->stream, NULL, persist_options);
1523         if (FAILED(hr))
1524             ERR("IWICPersistStream_LoadEx error %#x\n", hr);
1525     }
1526
1527     LeaveCriticalSection(&This->parent->lock);
1528
1529     IWICPersistStream_Release(persist);
1530
1531     if (FAILED(hr))
1532     {
1533         IWICMetadataReader_Release(metadata_reader);
1534         return hr;
1535     }
1536
1537     *reader = metadata_reader;
1538     return S_OK;
1539 }
1540
1541 static HRESULT WINAPI TiffFrameDecode_Block_GetReaderByIndex(IWICMetadataBlockReader *iface,
1542     UINT index, IWICMetadataReader **reader)
1543 {
1544     TiffFrameDecode *This = impl_from_IWICMetadataBlockReader(iface);
1545
1546     TRACE("(%p,%u,%p)\n", iface, index, reader);
1547
1548     if (!reader || index != 0) return E_INVALIDARG;
1549
1550     return create_metadata_reader(This, reader);
1551 }
1552
1553 static HRESULT WINAPI TiffFrameDecode_Block_GetEnumerator(IWICMetadataBlockReader *iface,
1554     IEnumUnknown **enum_metadata)
1555 {
1556     FIXME("(%p,%p): stub\n", iface, enum_metadata);
1557     return E_NOTIMPL;
1558 }
1559
1560 static const IWICMetadataBlockReaderVtbl TiffFrameDecode_BlockVtbl =
1561 {
1562     TiffFrameDecode_Block_QueryInterface,
1563     TiffFrameDecode_Block_AddRef,
1564     TiffFrameDecode_Block_Release,
1565     TiffFrameDecode_Block_GetContainerFormat,
1566     TiffFrameDecode_Block_GetCount,
1567     TiffFrameDecode_Block_GetReaderByIndex,
1568     TiffFrameDecode_Block_GetEnumerator
1569 };
1570
1571 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
1572 {
1573     HRESULT ret;
1574     TiffDecoder *This;
1575
1576     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
1577
1578     *ppv = NULL;
1579
1580     if (!load_libtiff())
1581     {
1582         ERR("Failed reading TIFF because unable to load %s\n",SONAME_LIBTIFF);
1583         return E_FAIL;
1584     }
1585
1586     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffDecoder));
1587     if (!This) return E_OUTOFMEMORY;
1588
1589     This->IWICBitmapDecoder_iface.lpVtbl = &TiffDecoder_Vtbl;
1590     This->ref = 1;
1591     This->stream = NULL;
1592     InitializeCriticalSection(&This->lock);
1593     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffDecoder.lock");
1594     This->tiff = NULL;
1595     This->initialized = FALSE;
1596
1597     ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
1598     IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
1599
1600     return ret;
1601 }
1602
1603 struct tiff_encode_format {
1604     const WICPixelFormatGUID *guid;
1605     int photometric;
1606     int bps;
1607     int samples;
1608     int bpp;
1609     int extra_sample;
1610     int extra_sample_type;
1611     int reverse_bgr;
1612 };
1613
1614 static const struct tiff_encode_format formats[] = {
1615     {&GUID_WICPixelFormat24bppBGR, 2, 8, 3, 24, 0, 0, 1},
1616     {&GUID_WICPixelFormat24bppRGB, 2, 8, 3, 24, 0, 0, 0},
1617     {&GUID_WICPixelFormatBlackWhite, 1, 1, 1, 1, 0, 0, 0},
1618     {&GUID_WICPixelFormat4bppGray, 1, 4, 1, 4, 0, 0, 0},
1619     {&GUID_WICPixelFormat8bppGray, 1, 8, 1, 8, 0, 0, 0},
1620     {&GUID_WICPixelFormat32bppBGRA, 2, 8, 4, 32, 1, 2, 1},
1621     {&GUID_WICPixelFormat32bppPBGRA, 2, 8, 4, 32, 1, 1, 1},
1622     {&GUID_WICPixelFormat48bppRGB, 2, 16, 3, 48, 0, 0, 0},
1623     {&GUID_WICPixelFormat64bppRGBA, 2, 16, 4, 64, 1, 2, 0},
1624     {&GUID_WICPixelFormat64bppPRGBA, 2, 16, 4, 64, 1, 1, 0},
1625     {&GUID_WICPixelFormat1bppIndexed, 3, 1, 1, 1, 0, 0, 0},
1626     {&GUID_WICPixelFormat2bppIndexed, 3, 2, 1, 2, 0, 0, 0},
1627     {&GUID_WICPixelFormat4bppIndexed, 3, 4, 1, 4, 0, 0, 0},
1628     {&GUID_WICPixelFormat8bppIndexed, 3, 8, 1, 8, 0, 0, 0},
1629     {0}
1630 };
1631
1632 typedef struct TiffEncoder {
1633     IWICBitmapEncoder IWICBitmapEncoder_iface;
1634     LONG ref;
1635     IStream *stream;
1636     CRITICAL_SECTION lock; /* Must be held when tiff is used or fields below are set */
1637     TIFF *tiff;
1638     BOOL initialized;
1639     BOOL committed;
1640     ULONG num_frames;
1641     ULONG num_frames_committed;
1642 } TiffEncoder;
1643
1644 static inline TiffEncoder *impl_from_IWICBitmapEncoder(IWICBitmapEncoder *iface)
1645 {
1646     return CONTAINING_RECORD(iface, TiffEncoder, IWICBitmapEncoder_iface);
1647 }
1648
1649 typedef struct TiffFrameEncode {
1650     IWICBitmapFrameEncode IWICBitmapFrameEncode_iface;
1651     LONG ref;
1652     TiffEncoder *parent;
1653     /* fields below are protected by parent->lock */
1654     BOOL initialized;
1655     BOOL info_written;
1656     BOOL committed;
1657     const struct tiff_encode_format *format;
1658     UINT width, height;
1659     double xres, yres;
1660     UINT lines_written;
1661     WICColor palette[256];
1662     UINT colors;
1663 } TiffFrameEncode;
1664
1665 static inline TiffFrameEncode *impl_from_IWICBitmapFrameEncode(IWICBitmapFrameEncode *iface)
1666 {
1667     return CONTAINING_RECORD(iface, TiffFrameEncode, IWICBitmapFrameEncode_iface);
1668 }
1669
1670 static HRESULT WINAPI TiffFrameEncode_QueryInterface(IWICBitmapFrameEncode *iface, REFIID iid,
1671     void **ppv)
1672 {
1673     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1674     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
1675
1676     if (!ppv) return E_INVALIDARG;
1677
1678     if (IsEqualIID(&IID_IUnknown, iid) ||
1679         IsEqualIID(&IID_IWICBitmapFrameEncode, iid))
1680     {
1681         *ppv = &This->IWICBitmapFrameEncode_iface;
1682     }
1683     else
1684     {
1685         *ppv = NULL;
1686         return E_NOINTERFACE;
1687     }
1688
1689     IUnknown_AddRef((IUnknown*)*ppv);
1690     return S_OK;
1691 }
1692
1693 static ULONG WINAPI TiffFrameEncode_AddRef(IWICBitmapFrameEncode *iface)
1694 {
1695     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1696     ULONG ref = InterlockedIncrement(&This->ref);
1697
1698     TRACE("(%p) refcount=%u\n", iface, ref);
1699
1700     return ref;
1701 }
1702
1703 static ULONG WINAPI TiffFrameEncode_Release(IWICBitmapFrameEncode *iface)
1704 {
1705     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1706     ULONG ref = InterlockedDecrement(&This->ref);
1707
1708     TRACE("(%p) refcount=%u\n", iface, ref);
1709
1710     if (ref == 0)
1711     {
1712         IWICBitmapEncoder_Release(&This->parent->IWICBitmapEncoder_iface);
1713         HeapFree(GetProcessHeap(), 0, This);
1714     }
1715
1716     return ref;
1717 }
1718
1719 static HRESULT WINAPI TiffFrameEncode_Initialize(IWICBitmapFrameEncode *iface,
1720     IPropertyBag2 *pIEncoderOptions)
1721 {
1722     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1723     TRACE("(%p,%p)\n", iface, pIEncoderOptions);
1724
1725     EnterCriticalSection(&This->parent->lock);
1726
1727     if (This->initialized)
1728     {
1729         LeaveCriticalSection(&This->parent->lock);
1730         return WINCODEC_ERR_WRONGSTATE;
1731     }
1732
1733     This->initialized = TRUE;
1734
1735     LeaveCriticalSection(&This->parent->lock);
1736
1737     return S_OK;
1738 }
1739
1740 static HRESULT WINAPI TiffFrameEncode_SetSize(IWICBitmapFrameEncode *iface,
1741     UINT uiWidth, UINT uiHeight)
1742 {
1743     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1744     TRACE("(%p,%u,%u)\n", iface, uiWidth, uiHeight);
1745
1746     EnterCriticalSection(&This->parent->lock);
1747
1748     if (!This->initialized || This->info_written)
1749     {
1750         LeaveCriticalSection(&This->parent->lock);
1751         return WINCODEC_ERR_WRONGSTATE;
1752     }
1753
1754     This->width = uiWidth;
1755     This->height = uiHeight;
1756
1757     LeaveCriticalSection(&This->parent->lock);
1758
1759     return S_OK;
1760 }
1761
1762 static HRESULT WINAPI TiffFrameEncode_SetResolution(IWICBitmapFrameEncode *iface,
1763     double dpiX, double dpiY)
1764 {
1765     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1766     TRACE("(%p,%0.2f,%0.2f)\n", iface, dpiX, dpiY);
1767
1768     EnterCriticalSection(&This->parent->lock);
1769
1770     if (!This->initialized || This->info_written)
1771     {
1772         LeaveCriticalSection(&This->parent->lock);
1773         return WINCODEC_ERR_WRONGSTATE;
1774     }
1775
1776     This->xres = dpiX;
1777     This->yres = dpiY;
1778
1779     LeaveCriticalSection(&This->parent->lock);
1780
1781     return S_OK;
1782 }
1783
1784 static HRESULT WINAPI TiffFrameEncode_SetPixelFormat(IWICBitmapFrameEncode *iface,
1785     WICPixelFormatGUID *pPixelFormat)
1786 {
1787     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1788     int i;
1789
1790     TRACE("(%p,%s)\n", iface, debugstr_guid(pPixelFormat));
1791
1792     EnterCriticalSection(&This->parent->lock);
1793
1794     if (!This->initialized || This->info_written)
1795     {
1796         LeaveCriticalSection(&This->parent->lock);
1797         return WINCODEC_ERR_WRONGSTATE;
1798     }
1799
1800     for (i=0; formats[i].guid; i++)
1801     {
1802         if (memcmp(formats[i].guid, pPixelFormat, sizeof(GUID)) == 0)
1803             break;
1804     }
1805
1806     if (!formats[i].guid) i = 0;
1807
1808     This->format = &formats[i];
1809     memcpy(pPixelFormat, This->format->guid, sizeof(GUID));
1810
1811     LeaveCriticalSection(&This->parent->lock);
1812
1813     return S_OK;
1814 }
1815
1816 static HRESULT WINAPI TiffFrameEncode_SetColorContexts(IWICBitmapFrameEncode *iface,
1817     UINT cCount, IWICColorContext **ppIColorContext)
1818 {
1819     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
1820     return E_NOTIMPL;
1821 }
1822
1823 static HRESULT WINAPI TiffFrameEncode_SetPalette(IWICBitmapFrameEncode *iface,
1824     IWICPalette *palette)
1825 {
1826     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1827     HRESULT hr;
1828
1829     TRACE("(%p,%p)\n", iface, palette);
1830
1831     if (!palette) return E_INVALIDARG;
1832
1833     EnterCriticalSection(&This->parent->lock);
1834
1835     if (This->initialized)
1836         hr = IWICPalette_GetColors(palette, 256, This->palette, &This->colors);
1837     else
1838         hr = WINCODEC_ERR_NOTINITIALIZED;
1839
1840     LeaveCriticalSection(&This->parent->lock);
1841     return hr;
1842 }
1843
1844 static HRESULT WINAPI TiffFrameEncode_SetThumbnail(IWICBitmapFrameEncode *iface,
1845     IWICBitmapSource *pIThumbnail)
1846 {
1847     FIXME("(%p,%p): stub\n", iface, pIThumbnail);
1848     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
1849 }
1850
1851 static HRESULT WINAPI TiffFrameEncode_WritePixels(IWICBitmapFrameEncode *iface,
1852     UINT lineCount, UINT cbStride, UINT cbBufferSize, BYTE *pbPixels)
1853 {
1854     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1855     BYTE *row_data, *swapped_data = NULL;
1856     UINT i, j, line_size;
1857
1858     TRACE("(%p,%u,%u,%u,%p)\n", iface, lineCount, cbStride, cbBufferSize, pbPixels);
1859
1860     EnterCriticalSection(&This->parent->lock);
1861
1862     if (!This->initialized || !This->width || !This->height || !This->format)
1863     {
1864         LeaveCriticalSection(&This->parent->lock);
1865         return WINCODEC_ERR_WRONGSTATE;
1866     }
1867
1868     if (lineCount == 0 || lineCount + This->lines_written > This->height)
1869     {
1870         LeaveCriticalSection(&This->parent->lock);
1871         return E_INVALIDARG;
1872     }
1873
1874     line_size = ((This->width * This->format->bpp)+7)/8;
1875
1876     if (This->format->reverse_bgr)
1877     {
1878         swapped_data = HeapAlloc(GetProcessHeap(), 0, line_size);
1879         if (!swapped_data)
1880         {
1881             LeaveCriticalSection(&This->parent->lock);
1882             return E_OUTOFMEMORY;
1883         }
1884     }
1885
1886     if (!This->info_written)
1887     {
1888         pTIFFSetField(This->parent->tiff, TIFFTAG_PHOTOMETRIC, (uint16)This->format->photometric);
1889         pTIFFSetField(This->parent->tiff, TIFFTAG_PLANARCONFIG, (uint16)1);
1890         pTIFFSetField(This->parent->tiff, TIFFTAG_BITSPERSAMPLE, (uint16)This->format->bps);
1891         pTIFFSetField(This->parent->tiff, TIFFTAG_SAMPLESPERPIXEL, (uint16)This->format->samples);
1892
1893         if (This->format->extra_sample)
1894         {
1895             uint16 extra_samples;
1896             extra_samples = This->format->extra_sample_type;
1897
1898             pTIFFSetField(This->parent->tiff, TIFFTAG_EXTRASAMPLES, (uint16)1, &extra_samples);
1899         }
1900
1901         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGEWIDTH, (uint32)This->width);
1902         pTIFFSetField(This->parent->tiff, TIFFTAG_IMAGELENGTH, (uint32)This->height);
1903
1904         if (This->xres != 0.0 && This->yres != 0.0)
1905         {
1906             pTIFFSetField(This->parent->tiff, TIFFTAG_RESOLUTIONUNIT, (uint16)2); /* Inch */
1907             pTIFFSetField(This->parent->tiff, TIFFTAG_XRESOLUTION, (float)This->xres);
1908             pTIFFSetField(This->parent->tiff, TIFFTAG_YRESOLUTION, (float)This->yres);
1909         }
1910
1911         if (This->format->bpp <= 8 && This->colors && !IsEqualGUID(This->format->guid, &GUID_WICPixelFormatBlackWhite))
1912         {
1913             uint16 red[256], green[256], blue[256];
1914             UINT i;
1915
1916             for (i = 0; i < This->colors; i++)
1917             {
1918                 red[i] = (This->palette[i] >> 8) & 0xff00;
1919                 green[i] = This->palette[i] & 0xff00;
1920                 blue[i] = (This->palette[i] << 8) & 0xff00;
1921             }
1922
1923             pTIFFSetField(This->parent->tiff, TIFFTAG_COLORMAP, red, green, blue);
1924         }
1925
1926         This->info_written = TRUE;
1927     }
1928
1929     for (i=0; i<lineCount; i++)
1930     {
1931         row_data = pbPixels + i * cbStride;
1932
1933         if (This->format->reverse_bgr && This->format->bps == 8)
1934         {
1935             memcpy(swapped_data, row_data, line_size);
1936             for (j=0; j<line_size; j += This->format->samples)
1937             {
1938                 BYTE temp;
1939                 temp = swapped_data[j];
1940                 swapped_data[j] = swapped_data[j+2];
1941                 swapped_data[j+2] = temp;
1942             }
1943             row_data = swapped_data;
1944         }
1945
1946         pTIFFWriteScanline(This->parent->tiff, (tdata_t)row_data, i+This->lines_written, 0);
1947     }
1948
1949     This->lines_written += lineCount;
1950
1951     LeaveCriticalSection(&This->parent->lock);
1952
1953     HeapFree(GetProcessHeap(), 0, swapped_data);
1954
1955     return S_OK;
1956 }
1957
1958 static HRESULT WINAPI TiffFrameEncode_WriteSource(IWICBitmapFrameEncode *iface,
1959     IWICBitmapSource *pIBitmapSource, WICRect *prc)
1960 {
1961     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1962     HRESULT hr;
1963
1964     TRACE("(%p,%p,%p)\n", iface, pIBitmapSource, prc);
1965
1966     if (!This->initialized)
1967         return WINCODEC_ERR_WRONGSTATE;
1968
1969     hr = configure_write_source(iface, pIBitmapSource, prc,
1970         This->format ? This->format->guid : NULL, This->width, This->height,
1971         This->xres, This->yres);
1972
1973     if (SUCCEEDED(hr))
1974     {
1975         hr = write_source(iface, pIBitmapSource, prc,
1976             This->format->guid, This->format->bpp, This->width, This->height);
1977     }
1978
1979     return hr;
1980 }
1981
1982 static HRESULT WINAPI TiffFrameEncode_Commit(IWICBitmapFrameEncode *iface)
1983 {
1984     TiffFrameEncode *This = impl_from_IWICBitmapFrameEncode(iface);
1985
1986     TRACE("(%p)\n", iface);
1987
1988     EnterCriticalSection(&This->parent->lock);
1989
1990     if (!This->info_written || This->lines_written != This->height || This->committed)
1991     {
1992         LeaveCriticalSection(&This->parent->lock);
1993         return WINCODEC_ERR_WRONGSTATE;
1994     }
1995
1996     /* libtiff will commit the data when creating a new frame or closing the file */
1997
1998     This->committed = TRUE;
1999     This->parent->num_frames_committed++;
2000
2001     LeaveCriticalSection(&This->parent->lock);
2002
2003     return S_OK;
2004 }
2005
2006 static HRESULT WINAPI TiffFrameEncode_GetMetadataQueryWriter(IWICBitmapFrameEncode *iface,
2007     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
2008 {
2009     FIXME("(%p, %p): stub\n", iface, ppIMetadataQueryWriter);
2010     return E_NOTIMPL;
2011 }
2012
2013 static const IWICBitmapFrameEncodeVtbl TiffFrameEncode_Vtbl = {
2014     TiffFrameEncode_QueryInterface,
2015     TiffFrameEncode_AddRef,
2016     TiffFrameEncode_Release,
2017     TiffFrameEncode_Initialize,
2018     TiffFrameEncode_SetSize,
2019     TiffFrameEncode_SetResolution,
2020     TiffFrameEncode_SetPixelFormat,
2021     TiffFrameEncode_SetColorContexts,
2022     TiffFrameEncode_SetPalette,
2023     TiffFrameEncode_SetThumbnail,
2024     TiffFrameEncode_WritePixels,
2025     TiffFrameEncode_WriteSource,
2026     TiffFrameEncode_Commit,
2027     TiffFrameEncode_GetMetadataQueryWriter
2028 };
2029
2030 static HRESULT WINAPI TiffEncoder_QueryInterface(IWICBitmapEncoder *iface, REFIID iid,
2031     void **ppv)
2032 {
2033     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2034     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
2035
2036     if (!ppv) return E_INVALIDARG;
2037
2038     if (IsEqualIID(&IID_IUnknown, iid) ||
2039         IsEqualIID(&IID_IWICBitmapEncoder, iid))
2040     {
2041         *ppv = &This->IWICBitmapEncoder_iface;
2042     }
2043     else
2044     {
2045         *ppv = NULL;
2046         return E_NOINTERFACE;
2047     }
2048
2049     IUnknown_AddRef((IUnknown*)*ppv);
2050     return S_OK;
2051 }
2052
2053 static ULONG WINAPI TiffEncoder_AddRef(IWICBitmapEncoder *iface)
2054 {
2055     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2056     ULONG ref = InterlockedIncrement(&This->ref);
2057
2058     TRACE("(%p) refcount=%u\n", iface, ref);
2059
2060     return ref;
2061 }
2062
2063 static ULONG WINAPI TiffEncoder_Release(IWICBitmapEncoder *iface)
2064 {
2065     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2066     ULONG ref = InterlockedDecrement(&This->ref);
2067
2068     TRACE("(%p) refcount=%u\n", iface, ref);
2069
2070     if (ref == 0)
2071     {
2072         if (This->tiff) pTIFFClose(This->tiff);
2073         if (This->stream) IStream_Release(This->stream);
2074         This->lock.DebugInfo->Spare[0] = 0;
2075         DeleteCriticalSection(&This->lock);
2076         HeapFree(GetProcessHeap(), 0, This);
2077     }
2078
2079     return ref;
2080 }
2081
2082 static HRESULT WINAPI TiffEncoder_Initialize(IWICBitmapEncoder *iface,
2083     IStream *pIStream, WICBitmapEncoderCacheOption cacheOption)
2084 {
2085     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2086     TIFF *tiff;
2087     HRESULT hr=S_OK;
2088
2089     TRACE("(%p,%p,%u)\n", iface, pIStream, cacheOption);
2090
2091     EnterCriticalSection(&This->lock);
2092
2093     if (This->initialized || This->committed)
2094     {
2095         hr = WINCODEC_ERR_WRONGSTATE;
2096         goto exit;
2097     }
2098
2099     tiff = tiff_open_stream(pIStream, "w");
2100
2101     if (!tiff)
2102     {
2103         hr = E_FAIL;
2104         goto exit;
2105     }
2106
2107     This->tiff = tiff;
2108     This->stream = pIStream;
2109     IStream_AddRef(pIStream);
2110     This->initialized = TRUE;
2111
2112 exit:
2113     LeaveCriticalSection(&This->lock);
2114     return hr;
2115 }
2116
2117 static HRESULT WINAPI TiffEncoder_GetContainerFormat(IWICBitmapEncoder *iface,
2118     GUID *pguidContainerFormat)
2119 {
2120     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
2121     return S_OK;
2122 }
2123
2124 static HRESULT WINAPI TiffEncoder_GetEncoderInfo(IWICBitmapEncoder *iface, IWICBitmapEncoderInfo **info)
2125 {
2126     IWICComponentInfo *comp_info;
2127     HRESULT hr;
2128
2129     TRACE("%p,%p\n", iface, info);
2130
2131     if (!info) return E_INVALIDARG;
2132
2133     hr = CreateComponentInfo(&CLSID_WICTiffEncoder, &comp_info);
2134     if (hr == S_OK)
2135     {
2136         hr = IWICComponentInfo_QueryInterface(comp_info, &IID_IWICBitmapEncoderInfo, (void **)info);
2137         IWICComponentInfo_Release(comp_info);
2138     }
2139     return hr;
2140 }
2141
2142 static HRESULT WINAPI TiffEncoder_SetColorContexts(IWICBitmapEncoder *iface,
2143     UINT cCount, IWICColorContext **ppIColorContext)
2144 {
2145     FIXME("(%p,%u,%p): stub\n", iface, cCount, ppIColorContext);
2146     return E_NOTIMPL;
2147 }
2148
2149 static HRESULT WINAPI TiffEncoder_SetPalette(IWICBitmapEncoder *iface, IWICPalette *palette)
2150 {
2151     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2152     HRESULT hr;
2153
2154     TRACE("(%p,%p)\n", iface, palette);
2155
2156     EnterCriticalSection(&This->lock);
2157
2158     hr = This->stream ? WINCODEC_ERR_UNSUPPORTEDOPERATION : WINCODEC_ERR_NOTINITIALIZED;
2159
2160     LeaveCriticalSection(&This->lock);
2161
2162     return hr;
2163 }
2164
2165 static HRESULT WINAPI TiffEncoder_SetThumbnail(IWICBitmapEncoder *iface, IWICBitmapSource *pIThumbnail)
2166 {
2167     TRACE("(%p,%p)\n", iface, pIThumbnail);
2168     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
2169 }
2170
2171 static HRESULT WINAPI TiffEncoder_SetPreview(IWICBitmapEncoder *iface, IWICBitmapSource *pIPreview)
2172 {
2173     TRACE("(%p,%p)\n", iface, pIPreview);
2174     return WINCODEC_ERR_UNSUPPORTEDOPERATION;
2175 }
2176
2177 static HRESULT WINAPI TiffEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
2178     IWICBitmapFrameEncode **ppIFrameEncode, IPropertyBag2 **ppIEncoderOptions)
2179 {
2180     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2181     TiffFrameEncode *result;
2182     static const PROPBAG2 opts[2] =
2183     {
2184         { PROPBAG2_TYPE_DATA, VT_UI1, 0, 0, (LPOLESTR)wszTiffCompressionMethod },
2185         { PROPBAG2_TYPE_DATA, VT_R4,  0, 0, (LPOLESTR)wszCompressionQuality },
2186     };
2187     HRESULT hr=S_OK;
2188
2189     TRACE("(%p,%p,%p)\n", iface, ppIFrameEncode, ppIEncoderOptions);
2190
2191     EnterCriticalSection(&This->lock);
2192
2193     if (!This->initialized || This->committed)
2194     {
2195         hr = WINCODEC_ERR_WRONGSTATE;
2196     }
2197     else if (This->num_frames != This->num_frames_committed)
2198     {
2199         FIXME("New frame created before previous frame was committed\n");
2200         hr = E_FAIL;
2201     }
2202
2203     if (ppIEncoderOptions && SUCCEEDED(hr))
2204     {
2205         hr = CreatePropertyBag2(opts, sizeof(opts)/sizeof(opts[0]), ppIEncoderOptions);
2206         if (SUCCEEDED(hr))
2207         {
2208             VARIANT v;
2209             VariantInit(&v);
2210             V_VT(&v) = VT_UI1;
2211             V_UI1(&v) = WICTiffCompressionDontCare;
2212             hr = IPropertyBag2_Write(*ppIEncoderOptions, 1, (PROPBAG2 *)opts, &v);
2213             VariantClear(&v);
2214             if (FAILED(hr))
2215             {
2216                 IPropertyBag2_Release(*ppIEncoderOptions);
2217                 *ppIEncoderOptions = NULL;
2218             }
2219         }
2220     }
2221
2222     if (SUCCEEDED(hr))
2223     {
2224         result = HeapAlloc(GetProcessHeap(), 0, sizeof(*result));
2225
2226         if (result)
2227         {
2228             result->IWICBitmapFrameEncode_iface.lpVtbl = &TiffFrameEncode_Vtbl;
2229             result->ref = 1;
2230             result->parent = This;
2231             result->initialized = FALSE;
2232             result->info_written = FALSE;
2233             result->committed = FALSE;
2234             result->format = NULL;
2235             result->width = 0;
2236             result->height = 0;
2237             result->xres = 0.0;
2238             result->yres = 0.0;
2239             result->lines_written = 0;
2240             result->colors = 0;
2241
2242             IWICBitmapEncoder_AddRef(iface);
2243             *ppIFrameEncode = &result->IWICBitmapFrameEncode_iface;
2244
2245             if (This->num_frames != 0)
2246                 pTIFFWriteDirectory(This->tiff);
2247
2248             This->num_frames++;
2249         }
2250         else
2251             hr = E_OUTOFMEMORY;
2252
2253         if (FAILED(hr))
2254         {
2255             IPropertyBag2_Release(*ppIEncoderOptions);
2256             *ppIEncoderOptions = NULL;
2257         }
2258     }
2259
2260     LeaveCriticalSection(&This->lock);
2261
2262     return hr;
2263 }
2264
2265 static HRESULT WINAPI TiffEncoder_Commit(IWICBitmapEncoder *iface)
2266 {
2267     TiffEncoder *This = impl_from_IWICBitmapEncoder(iface);
2268
2269     TRACE("(%p)\n", iface);
2270
2271     EnterCriticalSection(&This->lock);
2272
2273     if (!This->initialized || This->committed)
2274     {
2275         LeaveCriticalSection(&This->lock);
2276         return WINCODEC_ERR_WRONGSTATE;
2277     }
2278
2279     pTIFFClose(This->tiff);
2280     IStream_Release(This->stream);
2281     This->stream = NULL;
2282     This->tiff = NULL;
2283
2284     This->committed = TRUE;
2285
2286     LeaveCriticalSection(&This->lock);
2287
2288     return S_OK;
2289 }
2290
2291 static HRESULT WINAPI TiffEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
2292     IWICMetadataQueryWriter **ppIMetadataQueryWriter)
2293 {
2294     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryWriter);
2295     return E_NOTIMPL;
2296 }
2297
2298 static const IWICBitmapEncoderVtbl TiffEncoder_Vtbl = {
2299     TiffEncoder_QueryInterface,
2300     TiffEncoder_AddRef,
2301     TiffEncoder_Release,
2302     TiffEncoder_Initialize,
2303     TiffEncoder_GetContainerFormat,
2304     TiffEncoder_GetEncoderInfo,
2305     TiffEncoder_SetColorContexts,
2306     TiffEncoder_SetPalette,
2307     TiffEncoder_SetThumbnail,
2308     TiffEncoder_SetPreview,
2309     TiffEncoder_CreateNewFrame,
2310     TiffEncoder_Commit,
2311     TiffEncoder_GetMetadataQueryWriter
2312 };
2313
2314 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
2315 {
2316     TiffEncoder *This;
2317     HRESULT ret;
2318
2319     TRACE("(%s,%p)\n", debugstr_guid(iid), ppv);
2320
2321     *ppv = NULL;
2322
2323     if (!load_libtiff())
2324     {
2325         ERR("Failed writing TIFF because unable to load %s\n",SONAME_LIBTIFF);
2326         return E_FAIL;
2327     }
2328
2329     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffEncoder));
2330     if (!This) return E_OUTOFMEMORY;
2331
2332     This->IWICBitmapEncoder_iface.lpVtbl = &TiffEncoder_Vtbl;
2333     This->ref = 1;
2334     This->stream = NULL;
2335     InitializeCriticalSection(&This->lock);
2336     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffEncoder.lock");
2337     This->tiff = NULL;
2338     This->initialized = FALSE;
2339     This->num_frames = 0;
2340     This->num_frames_committed = 0;
2341     This->committed = FALSE;
2342
2343     ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
2344     IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
2345
2346     return ret;
2347 }
2348
2349 #else /* !SONAME_LIBTIFF */
2350
2351 HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv)
2352 {
2353     ERR("Trying to load TIFF picture, but Wine was compiled without TIFF support.\n");
2354     return E_FAIL;
2355 }
2356
2357 HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv)
2358 {
2359     ERR("Trying to save TIFF picture, but Wine was compiled without TIFF support.\n");
2360     return E_FAIL;
2361 }
2362
2363 #endif