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
  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 static CRITICAL_SECTION init_tiff_cs;
  47 static CRITICAL_SECTION_DEBUG init_tiff_cs_debug =
  48 {
  49     0, 0, &init_tiff_cs,
  50     { &init_tiff_cs_debug.ProcessLocksList,
  51       &init_tiff_cs_debug.ProcessLocksList },
  52     0, 0, { (DWORD_PTR)(__FILE__ ": init_tiff_cs") }
  53 };
  54 static CRITICAL_SECTION init_tiff_cs = { &init_tiff_cs_debug, -1, 0, 0, 0, 0 };
  55
  56 static void *libtiff_handle;
  57 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
  58 MAKE_FUNCPTR(TIFFClientOpen);
  59 MAKE_FUNCPTR(TIFFClose);
  60 MAKE_FUNCPTR(TIFFCurrentDirectory);
  61 MAKE_FUNCPTR(TIFFGetField);
  62 MAKE_FUNCPTR(TIFFReadDirectory);
  63 MAKE_FUNCPTR(TIFFReadEncodedStrip);
  64 MAKE_FUNCPTR(TIFFSetDirectory);
  65 #undef MAKE_FUNCPTR
  66
  67 static void *load_libtiff(void)
  68 {
  69     void *result;
  70
  71     EnterCriticalSection(&init_tiff_cs);
  72
  73     if (!libtiff_handle &&
  74         (libtiff_handle = wine_dlopen(SONAME_LIBTIFF, RTLD_NOW, NULL, 0)) != NULL)
  75     {
  76
  77 #define LOAD_FUNCPTR(f) \
  78     if((p##f = wine_dlsym(libtiff_handle, #f, NULL, 0)) == NULL) { \
  79         ERR("failed to load symbol %s\n", #f); \
  80         libtiff_handle = NULL; \
  81         LeaveCriticalSection(&init_tiff_cs); \
  82         return NULL; \
  83     }
  84         LOAD_FUNCPTR(TIFFClientOpen);
  85         LOAD_FUNCPTR(TIFFClose);
  86         LOAD_FUNCPTR(TIFFCurrentDirectory);
  87         LOAD_FUNCPTR(TIFFGetField);
  88         LOAD_FUNCPTR(TIFFReadDirectory);
  89         LOAD_FUNCPTR(TIFFReadEncodedStrip);
  90         LOAD_FUNCPTR(TIFFSetDirectory);
  91 #undef LOAD_FUNCPTR
  92
  93     }
  94
  95     result = libtiff_handle;
  96
  97     LeaveCriticalSection(&init_tiff_cs);
  98     return result;
  99 }
 100
 101 static tsize_t tiff_stream_read(thandle_t client_data, tdata_t data, tsize_t size)
 102 {
 103     IStream *stream = (IStream*)client_data;
 104     ULONG bytes_read;
 105     HRESULT hr;
 106
 107     hr = IStream_Read(stream, data, size, &bytes_read);
 108     if (FAILED(hr)) bytes_read = 0;
 109     return bytes_read;
 110 }
 111
 112 static tsize_t tiff_stream_write(thandle_t client_data, tdata_t data, tsize_t size)
 113 {
 114     IStream *stream = (IStream*)client_data;
 115     ULONG bytes_written;
 116     HRESULT hr;
 117
 118     hr = IStream_Write(stream, data, size, &bytes_written);
 119     if (FAILED(hr)) bytes_written = 0;
 120     return bytes_written;
 121 }
 122
 123 static toff_t tiff_stream_seek(thandle_t client_data, toff_t offset, int whence)
 124 {
 125     IStream *stream = (IStream*)client_data;
 126     LARGE_INTEGER move;
 127     DWORD origin;
 128     ULARGE_INTEGER new_position;
 129     HRESULT hr;
 130
 131     move.QuadPart = offset;
 132     switch (whence)
 133     {
 134         case SEEK_SET:
 135             origin = STREAM_SEEK_SET;
 136             break;
 137         case SEEK_CUR:
 138             origin = STREAM_SEEK_CUR;
 139             break;
 140         case SEEK_END:
 141             origin = STREAM_SEEK_END;
 142             break;
 143         default:
 144             ERR("unknown whence value %i\n", whence);
 145             return -1;
 146     }
 147
 148     hr = IStream_Seek(stream, move, origin, &new_position);
 149     if (SUCCEEDED(hr)) return new_position.QuadPart;
 150     else return -1;
 151 }
 152
 153 static int tiff_stream_close(thandle_t client_data)
 154 {
 155     /* Caller is responsible for releasing the stream object. */
 156     return 0;
 157 }
 158
 159 static toff_t tiff_stream_size(thandle_t client_data)
 160 {
 161     IStream *stream = (IStream*)client_data;
 162     STATSTG statstg;
 163     HRESULT hr;
 164
 165     hr = IStream_Stat(stream, &statstg, STATFLAG_NONAME);
 166
 167     if (SUCCEEDED(hr)) return statstg.cbSize.QuadPart;
 168     else return -1;
 169 }
 170
 171 static int tiff_stream_map(thandle_t client_data, tdata_t *addr, toff_t *size)
 172 {
 173     /* Cannot mmap streams */
 174     return 0;
 175 }
 176
 177 static void tiff_stream_unmap(thandle_t client_data, tdata_t addr, toff_t size)
 178 {
 179     /* No need to ever do this, since we can't map things. */
 180 }
 181
 182 static TIFF* tiff_open_stream(IStream *stream, const char *mode)
 183 {
 184     return pTIFFClientOpen("<IStream object>", mode, stream, tiff_stream_read,
 185         tiff_stream_write, tiff_stream_seek, tiff_stream_close,
 186         tiff_stream_size, tiff_stream_map, tiff_stream_unmap);
 187 }
 188
 189 typedef struct {
 190     const IWICBitmapDecoderVtbl *lpVtbl;
 191     LONG ref;
 192     IStream *stream;
 193     CRITICAL_SECTION lock; /* Must be held when tiff is used or initiailzed is set */
 194     TIFF *tiff;
 195     BOOL initialized;
 196 } TiffDecoder;
 197
 198 typedef struct {
 199     const WICPixelFormatGUID *format;
 200     int bpp;
 201     int indexed;
 202     int reverse_bgr;
 203     UINT width, height;
 204     UINT tile_width, tile_height;
 205     UINT tile_stride;
 206     UINT tile_size;
 207 } tiff_decode_info;
 208
 209 typedef struct {
 210     const IWICBitmapFrameDecodeVtbl *lpVtbl;
 211     LONG ref;
 212     TiffDecoder *parent;
 213     UINT index;
 214     tiff_decode_info decode_info;
 215     INT cached_tile_x, cached_tile_y;
 216     BYTE *cached_tile;
 217 } TiffFrameDecode;
 218
 219 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl;
 220
 221 static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
 222 {
 223     uint16 photometric, bps, samples, planar;
 224     int ret;
 225
 226     decode_info->indexed = 0;
 227     decode_info->reverse_bgr = 0;
 228
 229     ret = pTIFFGetField(tiff, TIFFTAG_PHOTOMETRIC, &photometric);
 230     if (!ret)
 231     {
 232         WARN("missing PhotometricInterpretation tag\n");
 233         return E_FAIL;
 234     }
 235
 236     ret = pTIFFGetField(tiff, TIFFTAG_BITSPERSAMPLE, &bps);
 237     if (!ret) bps = 1;
 238
 239     switch(photometric)
 240     {
 241     case 1: /* BlackIsZero */
 242         decode_info->bpp = bps;
 243         switch (bps)
 244         {
 245         case 1:
 246             decode_info->format = &GUID_WICPixelFormatBlackWhite;
 247             break;
 248         case 4:
 249             decode_info->format = &GUID_WICPixelFormat4bppGray;
 250             break;
 251         case 8:
 252             decode_info->format = &GUID_WICPixelFormat8bppGray;
 253             break;
 254         default:
 255             FIXME("unhandled greyscale bit count %u\n", bps);
 256             return E_FAIL;
 257         }
 258         break;
 259     case 2: /* RGB */
 260         if (bps != 8)
 261         {
 262             FIXME("unhandled RGB bit count %u\n", bps);
 263             return E_FAIL;
 264         }
 265         ret = pTIFFGetField(tiff, TIFFTAG_SAMPLESPERPIXEL, &samples);
 266         if (samples != 3)
 267         {
 268             FIXME("unhandled RGB sample count %u\n", samples);
 269             return E_FAIL;
 270         }
 271         ret = pTIFFGetField(tiff, TIFFTAG_PLANARCONFIG, &planar);
 272         if (!ret) planar = 1;
 273         if (planar != 1)
 274         {
 275             FIXME("unhandled planar configuration %u\n", planar);
 276             return E_FAIL;
 277         }
 278         decode_info->bpp = bps * samples;
 279         decode_info->reverse_bgr = 1;
 280         decode_info->format = &GUID_WICPixelFormat24bppBGR;
 281         break;
 282     case 3: /* RGB Palette */
 283         decode_info->indexed = 1;
 284         decode_info->bpp = bps;
 285         switch (bps)
 286         {
 287         case 4:
 288             decode_info->format = &GUID_WICPixelFormat4bppIndexed;
 289             break;
 290         case 8:
 291             decode_info->format = &GUID_WICPixelFormat8bppIndexed;
 292             break;
 293         default:
 294             FIXME("unhandled indexed bit count %u\n", bps);
 295             return E_FAIL;
 296         }
 297         break;
 298     case 0: /* WhiteIsZero */
 299     case 4: /* Transparency mask */
 300     case 5: /* CMYK */
 301     case 6: /* YCbCr */
 302     case 8: /* CIELab */
 303     default:
 304         FIXME("unhandled PhotometricInterpretation %u\n", photometric);
 305         return E_FAIL;
 306     }
 307
 308     ret = pTIFFGetField(tiff, TIFFTAG_IMAGEWIDTH, &decode_info->width);
 309     if (!ret)
 310     {
 311         WARN("missing image width\n");
 312         return E_FAIL;
 313     }
 314
 315     ret = pTIFFGetField(tiff, TIFFTAG_IMAGELENGTH, &decode_info->height);
 316     if (!ret)
 317     {
 318         WARN("missing image length\n");
 319         return E_FAIL;
 320     }
 321
 322     ret = pTIFFGetField(tiff, TIFFTAG_ROWSPERSTRIP, &decode_info->tile_height);
 323     if (ret)
 324     {
 325         decode_info->tile_width = decode_info->width;
 326         decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
 327         decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
 328     }
 329     else
 330     {
 331         /* Probably a tiled image */
 332         FIXME("missing RowsPerStrip value\n");
 333         return E_FAIL;
 334     }
 335
 336     return S_OK;
 337 }
 338
 339 static HRESULT WINAPI TiffDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
 340     void **ppv)
 341 {
 342     TiffDecoder *This = (TiffDecoder*)iface;
 343     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 344
 345     if (!ppv) return E_INVALIDARG;
 346
 347     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICBitmapDecoder, iid))
 348     {
 349         *ppv = This;
 350     }
 351     else
 352     {
 353         *ppv = NULL;
 354         return E_NOINTERFACE;
 355     }
 356
 357     IUnknown_AddRef((IUnknown*)*ppv);
 358     return S_OK;
 359 }
 360
 361 static ULONG WINAPI TiffDecoder_AddRef(IWICBitmapDecoder *iface)
 362 {
 363     TiffDecoder *This = (TiffDecoder*)iface;
 364     ULONG ref = InterlockedIncrement(&This->ref);
 365
 366     TRACE("(%p) refcount=%u\n", iface, ref);
 367
 368     return ref;
 369 }
 370
 371 static ULONG WINAPI TiffDecoder_Release(IWICBitmapDecoder *iface)
 372 {
 373     TiffDecoder *This = (TiffDecoder*)iface;
 374     ULONG ref = InterlockedDecrement(&This->ref);
 375
 376     TRACE("(%p) refcount=%u\n", iface, ref);
 377
 378     if (ref == 0)
 379     {
 380         if (This->tiff) pTIFFClose(This->tiff);
 381         if (This->stream) IStream_Release(This->stream);
 382         This->lock.DebugInfo->Spare[0] = 0;
 383         DeleteCriticalSection(&This->lock);
 384         HeapFree(GetProcessHeap(), 0, This);
 385     }
 386
 387     return ref;
 388 }
 389
 390 static HRESULT WINAPI TiffDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *pIStream,
 391     DWORD *pdwCapability)
 392 {
 393     FIXME("(%p,%p,%p): stub\n", iface, pIStream, pdwCapability);
 394     return E_NOTIMPL;
 395 }
 396
 397 static HRESULT WINAPI TiffDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
 398     WICDecodeOptions cacheOptions)
 399 {
 400     TiffDecoder *This = (TiffDecoder*)iface;
 401     TIFF *tiff;
 402     HRESULT hr=S_OK;
 403
 404     TRACE("(%p,%p,%x): stub\n", iface, pIStream, cacheOptions);
 405
 406     EnterCriticalSection(&This->lock);
 407
 408     if (This->initialized)
 409     {
 410         hr = WINCODEC_ERR_WRONGSTATE;
 411         goto exit;
 412     }
 413
 414     tiff = tiff_open_stream(pIStream, "r");
 415
 416     if (!tiff)
 417     {
 418         hr = E_FAIL;
 419         goto exit;
 420     }
 421
 422     This->tiff = tiff;
 423     This->stream = pIStream;
 424     IStream_AddRef(pIStream);
 425     This->initialized = TRUE;
 426
 427 exit:
 428     LeaveCriticalSection(&This->lock);
 429     return hr;
 430 }
 431
 432 static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
 433     GUID *pguidContainerFormat)
 434 {
 435     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
 436     return S_OK;
 437 }
 438
 439 static HRESULT WINAPI TiffDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
 440     IWICBitmapDecoderInfo **ppIDecoderInfo)
 441 {
 442     FIXME("(%p,%p): stub\n", iface, ppIDecoderInfo);
 443     return E_NOTIMPL;
 444 }
 445
 446 static HRESULT WINAPI TiffDecoder_CopyPalette(IWICBitmapDecoder *iface,
 447     IWICPalette *pIPalette)
 448 {
 449     FIXME("(%p,%p): stub\n", iface, pIPalette);
 450     return E_NOTIMPL;
 451 }
 452
 453 static HRESULT WINAPI TiffDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
 454     IWICMetadataQueryReader **ppIMetadataQueryReader)
 455 {
 456     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
 457     return E_NOTIMPL;
 458 }
 459
 460 static HRESULT WINAPI TiffDecoder_GetPreview(IWICBitmapDecoder *iface,
 461     IWICBitmapSource **ppIBitmapSource)
 462 {
 463     FIXME("(%p,%p): stub\n", iface, ppIBitmapSource);
 464     return E_NOTIMPL;
 465 }
 466
 467 static HRESULT WINAPI TiffDecoder_GetColorContexts(IWICBitmapDecoder *iface,
 468     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 469 {
 470     FIXME("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
 471     return E_NOTIMPL;
 472 }
 473
 474 static HRESULT WINAPI TiffDecoder_GetThumbnail(IWICBitmapDecoder *iface,
 475     IWICBitmapSource **ppIThumbnail)
 476 {
 477     TRACE("(%p,%p)\n", iface, ppIThumbnail);
 478     return WINCODEC_ERR_CODECNOTHUMBNAIL;
 479 }
 480
 481 static HRESULT WINAPI TiffDecoder_GetFrameCount(IWICBitmapDecoder *iface,
 482     UINT *pCount)
 483 {
 484     TiffDecoder *This = (TiffDecoder*)iface;
 485
 486     if (!This->tiff)
 487     {
 488         WARN("(%p) <-- WINCODEC_ERR_WRONGSTATE\n", iface);
 489         return WINCODEC_ERR_WRONGSTATE;
 490     }
 491
 492     EnterCriticalSection(&This->lock);
 493     while (pTIFFReadDirectory(This->tiff)) { }
 494     *pCount = pTIFFCurrentDirectory(This->tiff)+1;
 495     LeaveCriticalSection(&This->lock);
 496
 497     TRACE("(%p) <-- %i\n", iface, *pCount);
 498
 499     return S_OK;
 500 }
 501
 502 static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
 503     UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
 504 {
 505     TiffDecoder *This = (TiffDecoder*)iface;
 506     TiffFrameDecode *result;
 507     int res;
 508     tiff_decode_info decode_info;
 509     HRESULT hr;
 510
 511     TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
 512
 513     if (!This->tiff)
 514         return WINCODEC_ERR_WRONGSTATE;
 515
 516     EnterCriticalSection(&This->lock);
 517     res = pTIFFSetDirectory(This->tiff, index);
 518     if (!res) hr = E_INVALIDARG;
 519     else hr = tiff_get_decode_info(This->tiff, &decode_info);
 520     LeaveCriticalSection(&This->lock);
 521
 522     if (SUCCEEDED(hr))
 523     {
 524         result = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffFrameDecode));
 525
 526         if (result)
 527         {
 528             result->lpVtbl = &TiffFrameDecode_Vtbl;
 529             result->ref = 1;
 530             result->parent = This;
 531             result->index = index;
 532             result->decode_info = decode_info;
 533             result->cached_tile_x = -1;
 534             result->cached_tile = HeapAlloc(GetProcessHeap(), 0, decode_info.tile_size);
 535
 536             if (result->cached_tile)
 537                 *ppIBitmapFrame = (IWICBitmapFrameDecode*)result;
 538             else
 539             {
 540                 hr = E_OUTOFMEMORY;
 541                 HeapFree(GetProcessHeap(), 0, result);
 542             }
 543         }
 544         else hr = E_OUTOFMEMORY;
 545     }
 546
 547     if (FAILED(hr)) *ppIBitmapFrame = NULL;
 548
 549     return hr;
 550 }
 551
 552 static const IWICBitmapDecoderVtbl TiffDecoder_Vtbl = {
 553     TiffDecoder_QueryInterface,
 554     TiffDecoder_AddRef,
 555     TiffDecoder_Release,
 556     TiffDecoder_QueryCapability,
 557     TiffDecoder_Initialize,
 558     TiffDecoder_GetContainerFormat,
 559     TiffDecoder_GetDecoderInfo,
 560     TiffDecoder_CopyPalette,
 561     TiffDecoder_GetMetadataQueryReader,
 562     TiffDecoder_GetPreview,
 563     TiffDecoder_GetColorContexts,
 564     TiffDecoder_GetThumbnail,
 565     TiffDecoder_GetFrameCount,
 566     TiffDecoder_GetFrame
 567 };
 568
 569 static HRESULT WINAPI TiffFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
 570     void **ppv)
 571 {
 572     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 573     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
 574
 575     if (!ppv) return E_INVALIDARG;
 576
 577     if (IsEqualIID(&IID_IUnknown, iid) ||
 578         IsEqualIID(&IID_IWICBitmapSource, iid) ||
 579         IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
 580     {
 581         *ppv = This;
 582     }
 583     else
 584     {
 585         *ppv = NULL;
 586         return E_NOINTERFACE;
 587     }
 588
 589     IUnknown_AddRef((IUnknown*)*ppv);
 590     return S_OK;
 591 }
 592
 593 static ULONG WINAPI TiffFrameDecode_AddRef(IWICBitmapFrameDecode *iface)
 594 {
 595     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 596     ULONG ref = InterlockedIncrement(&This->ref);
 597
 598     TRACE("(%p) refcount=%u\n", iface, ref);
 599
 600     return ref;
 601 }
 602
 603 static ULONG WINAPI TiffFrameDecode_Release(IWICBitmapFrameDecode *iface)
 604 {
 605     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 606     ULONG ref = InterlockedDecrement(&This->ref);
 607
 608     TRACE("(%p) refcount=%u\n", iface, ref);
 609
 610     if (ref == 0)
 611     {
 612         HeapFree(GetProcessHeap(), 0, This->cached_tile);
 613         HeapFree(GetProcessHeap(), 0, This);
 614     }
 615
 616     return ref;
 617 }
 618
 619 static HRESULT WINAPI TiffFrameDecode_GetSize(IWICBitmapFrameDecode *iface,
 620     UINT *puiWidth, UINT *puiHeight)
 621 {
 622     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 623
 624     *puiWidth = This->decode_info.width;
 625     *puiHeight = This->decode_info.height;
 626
 627     TRACE("(%p) <-- %ux%u\n", iface, *puiWidth, *puiHeight);
 628
 629     return S_OK;
 630 }
 631
 632 static HRESULT WINAPI TiffFrameDecode_GetPixelFormat(IWICBitmapFrameDecode *iface,
 633     WICPixelFormatGUID *pPixelFormat)
 634 {
 635     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 636
 637     memcpy(pPixelFormat, This->decode_info.format, sizeof(GUID));
 638
 639     TRACE("(%p) <-- %s\n", This, debugstr_guid(This->decode_info.format));
 640
 641     return S_OK;
 642 }
 643
 644 static HRESULT WINAPI TiffFrameDecode_GetResolution(IWICBitmapFrameDecode *iface,
 645     double *pDpiX, double *pDpiY)
 646 {
 647     FIXME("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
 648     return E_NOTIMPL;
 649 }
 650
 651 static HRESULT WINAPI TiffFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
 652     IWICPalette *pIPalette)
 653 {
 654     FIXME("(%p,%p)\n", iface, pIPalette);
 655     return E_NOTIMPL;
 656 }
 657
 658 static HRESULT TiffFrameDecode_ReadTile(TiffFrameDecode *This, UINT tile_x, UINT tile_y)
 659 {
 660     HRESULT hr=S_OK;
 661     tsize_t ret;
 662
 663     ret = pTIFFSetDirectory(This->parent->tiff, This->index);
 664
 665     if (ret == -1)
 666         hr = E_FAIL;
 667
 668     if (hr == S_OK)
 669     {
 670         ret = pTIFFReadEncodedStrip(This->parent->tiff, tile_y, This->cached_tile, This->decode_info.tile_size);
 671
 672         if (ret == -1)
 673             hr = E_FAIL;
 674     }
 675
 676     if (hr == S_OK && This->decode_info.reverse_bgr)
 677     {
 678         if (This->decode_info.format == &GUID_WICPixelFormat24bppBGR)
 679         {
 680             UINT i, total_pixels;
 681             BYTE *pixel, temp;
 682
 683             total_pixels = This->decode_info.tile_width * This->decode_info.tile_height;
 684             pixel = This->cached_tile;
 685             for (i=0; i<total_pixels; i++)
 686             {
 687                 temp = pixel[2];
 688                 pixel[2] = pixel[0];
 689                 pixel[0] = temp;
 690                 pixel += 3;
 691             }
 692         }
 693     }
 694
 695     if (hr == S_OK)
 696     {
 697         This->cached_tile_x = tile_x;
 698         This->cached_tile_y = tile_y;
 699     }
 700
 701     return hr;
 702 }
 703
 704 static HRESULT WINAPI TiffFrameDecode_CopyPixels(IWICBitmapFrameDecode *iface,
 705     const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
 706 {
 707     TiffFrameDecode *This = (TiffFrameDecode*)iface;
 708     UINT min_tile_x, max_tile_x, min_tile_y, max_tile_y;
 709     UINT tile_x, tile_y;
 710     WICRect rc;
 711     HRESULT hr=S_OK;
 712     BYTE *dst_tilepos;
 713     UINT bytesperrow;
 714
 715     TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
 716
 717     if (prc->X < 0 || prc->Y < 0 || prc->X+prc->Width > This->decode_info.width ||
 718         prc->Y+prc->Height > This->decode_info.height)
 719         return E_INVALIDARG;
 720
 721     bytesperrow = ((This->decode_info.bpp * prc->Width)+7)/8;
 722
 723     if (cbStride < bytesperrow)
 724         return E_INVALIDARG;
 725
 726     if ((cbStride * prc->Height) > cbBufferSize)
 727         return E_INVALIDARG;
 728
 729     min_tile_x = prc->X / This->decode_info.tile_width;
 730     min_tile_y = prc->Y / This->decode_info.tile_height;
 731     max_tile_x = (prc->X+prc->Width-1) / This->decode_info.tile_width;
 732     max_tile_y = (prc->Y+prc->Height-1) / This->decode_info.tile_height;
 733
 734     EnterCriticalSection(&This->parent->lock);
 735
 736     for (tile_x=min_tile_x; tile_x <= max_tile_x; tile_x++)
 737     {
 738         for (tile_y=min_tile_y; tile_y <= max_tile_y; tile_y++)
 739         {
 740             if (tile_x != This->cached_tile_x || tile_y != This->cached_tile_y)
 741             {
 742                 hr = TiffFrameDecode_ReadTile(This, tile_x, tile_y);
 743             }
 744
 745             if (SUCCEEDED(hr))
 746             {
 747                 if (prc->X < tile_x * This->decode_info.tile_width)
 748                     rc.X = 0;
 749                 else
 750                     rc.X = prc->X - tile_x * This->decode_info.tile_width;
 751
 752                 if (prc->Y < tile_y * This->decode_info.tile_height)
 753                     rc.Y = 0;
 754                 else
 755                     rc.Y = prc->Y - tile_y * This->decode_info.tile_height;
 756
 757                 if (prc->X+prc->Width > (tile_x+1) * This->decode_info.tile_width)
 758                     rc.Width = This->decode_info.tile_width - rc.X;
 759                 else
 760                     rc.Width = prc->Width + rc.X - prc->X;
 761
 762                 if (prc->Y+prc->Height > (tile_y+1) * This->decode_info.tile_height)
 763                     rc.Height = This->decode_info.tile_height - rc.Y;
 764                 else
 765                     rc.Height = prc->Height + rc.Y - prc->Y;
 766
 767                 dst_tilepos = pbBuffer + (cbStride * (rc.Y - prc->Y)) +
 768                     ((This->decode_info.bpp * (rc.X - prc->X) + 7) / 8);
 769
 770                 hr = copy_pixels(This->decode_info.bpp, This->cached_tile,
 771                     This->decode_info.tile_width, This->decode_info.tile_height, This->decode_info.tile_stride,
 772                     &rc, cbStride, cbBufferSize, dst_tilepos);
 773             }
 774
 775             if (FAILED(hr))
 776             {
 777                 LeaveCriticalSection(&This->parent->lock);
 778                 TRACE("<-- 0x%x\n", hr);
 779                 return hr;
 780             }
 781         }
 782     }
 783
 784     LeaveCriticalSection(&This->parent->lock);
 785
 786     return S_OK;
 787 }
 788
 789 static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDecode *iface,
 790     IWICMetadataQueryReader **ppIMetadataQueryReader)
 791 {
 792     FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
 793     return E_NOTIMPL;
 794 }
 795
 796 static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
 797     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 798 {
 799     FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
 800     return E_NOTIMPL;
 801 }
 802
 803 static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,
 804     IWICBitmapSource **ppIThumbnail)
 805 {
 806     FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
 807     return E_NOTIMPL;
 808 }
 809
 810 static const IWICBitmapFrameDecodeVtbl TiffFrameDecode_Vtbl = {
 811     TiffFrameDecode_QueryInterface,
 812     TiffFrameDecode_AddRef,
 813     TiffFrameDecode_Release,
 814     TiffFrameDecode_GetSize,
 815     TiffFrameDecode_GetPixelFormat,
 816     TiffFrameDecode_GetResolution,
 817     TiffFrameDecode_CopyPalette,
 818     TiffFrameDecode_CopyPixels,
 819     TiffFrameDecode_GetMetadataQueryReader,
 820     TiffFrameDecode_GetColorContexts,
 821     TiffFrameDecode_GetThumbnail
 822 };
 823
 824 HRESULT TiffDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 825 {
 826     HRESULT ret;
 827     TiffDecoder *This;
 828
 829     TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
 830
 831     *ppv = NULL;
 832
 833     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
 834
 835     if (!load_libtiff())
 836     {
 837         ERR("Failed reading TIFF because unable to load %s\n",SONAME_LIBTIFF);
 838         return E_FAIL;
 839     }
 840
 841     This = HeapAlloc(GetProcessHeap(), 0, sizeof(TiffDecoder));
 842     if (!This) return E_OUTOFMEMORY;
 843
 844     This->lpVtbl = &TiffDecoder_Vtbl;
 845     This->ref = 1;
 846     This->stream = NULL;
 847     InitializeCriticalSection(&This->lock);
 848     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TiffDecoder.lock");
 849     This->tiff = NULL;
 850     This->initialized = FALSE;
 851
 852     ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
 853     IUnknown_Release((IUnknown*)This);
 854
 855     return ret;
 856 }
 857
 858 #else /* !SONAME_LIBTIFF */
 859
 860 HRESULT TiffDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
 861 {
 862     ERR("Trying to load TIFF picture, but Wine was compiled without TIFF support.\n");
 863     return E_FAIL;
 864 }
 865
 866 #endif