dlls/gdiplus/metafile.c

   1 /*
   2  * Copyright (C) 2011 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 <stdarg.h>
  20 #include <math.h>
  21
  22 #include "windef.h"
  23 #include "winbase.h"
  24 #include "wingdi.h"
  25 #include "wine/unicode.h"
  26
  27 #define COBJMACROS
  28 #include "objbase.h"
  29 #include "ocidl.h"
  30 #include "olectl.h"
  31 #include "ole2.h"
  32
  33 #include "winreg.h"
  34 #include "shlwapi.h"
  35
  36 #include "gdiplus.h"
  37 #include "gdiplus_private.h"
  38 #include "wine/debug.h"
  39 #include "wine/list.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  42
  43 typedef struct EmfPlusRecordHeader
  44 {
  45     WORD Type;
  46     WORD Flags;
  47     DWORD Size;
  48     DWORD DataSize;
  49 } EmfPlusRecordHeader;
  50
  51 typedef struct EmfPlusHeader
  52 {
  53     EmfPlusRecordHeader Header;
  54     DWORD Version;
  55     DWORD EmfPlusFlags;
  56     DWORD LogicalDpiX;
  57     DWORD LogicalDpiY;
  58 } EmfPlusHeader;
  59
  60 typedef struct EmfPlusFillRects
  61 {
  62     EmfPlusRecordHeader Header;
  63     DWORD BrushID;
  64     DWORD Count;
  65 } EmfPlusFillRects;
  66
  67 typedef struct EmfPlusRect
  68 {
  69     SHORT X;
  70     SHORT Y;
  71     SHORT Width;
  72     SHORT Height;
  73 } EmfPlusRect;
  74
  75 static GpStatus METAFILE_AllocateRecord(GpMetafile *metafile, DWORD size, void **result)
  76 {
  77     DWORD size_needed;
  78     EmfPlusRecordHeader *record;
  79
  80     if (!metafile->comment_data_size)
  81     {
  82         DWORD data_size = max(256, size * 2 + 4);
  83         metafile->comment_data = GdipAlloc(data_size);
  84
  85         if (!metafile->comment_data)
  86             return OutOfMemory;
  87
  88         memcpy(metafile->comment_data, "EMF+", 4);
  89
  90         metafile->comment_data_size = data_size;
  91         metafile->comment_data_length = 4;
  92     }
  93
  94     size_needed = size + metafile->comment_data_length;
  95
  96     if (size_needed > metafile->comment_data_size)
  97     {
  98         DWORD data_size = size_needed * 2;
  99         BYTE *new_data = GdipAlloc(data_size);
 100
 101         if (!new_data)
 102             return OutOfMemory;
 103
 104         memcpy(new_data, metafile->comment_data, metafile->comment_data_length);
 105
 106         metafile->comment_data_size = data_size;
 107         GdipFree(metafile->comment_data);
 108         metafile->comment_data = new_data;
 109     }
 110
 111     *result = metafile->comment_data + metafile->comment_data_length;
 112     metafile->comment_data_length += size;
 113
 114     record = (EmfPlusRecordHeader*)*result;
 115     record->Size = size;
 116     record->DataSize = size - sizeof(EmfPlusRecordHeader);
 117
 118     return Ok;
 119 }
 120
 121 static void METAFILE_WriteRecords(GpMetafile *metafile)
 122 {
 123     if (metafile->comment_data_length > 4)
 124     {
 125         GdiComment(metafile->record_dc, metafile->comment_data_length, metafile->comment_data);
 126         metafile->comment_data_length = 4;
 127     }
 128 }
 129
 130 static GpStatus METAFILE_WriteHeader(GpMetafile *metafile, HDC hdc)
 131 {
 132     GpStatus stat;
 133
 134     if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
 135     {
 136         EmfPlusHeader *header;
 137
 138         stat = METAFILE_AllocateRecord(metafile, sizeof(EmfPlusHeader), (void**)&header);
 139         if (stat != Ok)
 140             return stat;
 141
 142         header->Header.Type = EmfPlusRecordTypeHeader;
 143
 144         if (metafile->metafile_type == MetafileTypeEmfPlusDual)
 145             header->Header.Flags = 1;
 146         else
 147             header->Header.Flags = 0;
 148
 149         header->Version = 0xDBC01002;
 150
 151         if (GetDeviceCaps(hdc, TECHNOLOGY) == DT_RASDISPLAY)
 152             header->EmfPlusFlags = 1;
 153         else
 154             header->EmfPlusFlags = 0;
 155
 156         header->LogicalDpiX = GetDeviceCaps(hdc, LOGPIXELSX);
 157         header->LogicalDpiY = GetDeviceCaps(hdc, LOGPIXELSY);
 158
 159         METAFILE_WriteRecords(metafile);
 160     }
 161
 162     return Ok;
 163 }
 164
 165 static GpStatus METAFILE_WriteEndOfFile(GpMetafile *metafile)
 166 {
 167     GpStatus stat;
 168
 169     if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
 170     {
 171         EmfPlusRecordHeader *record;
 172
 173         stat = METAFILE_AllocateRecord(metafile, sizeof(EmfPlusRecordHeader), (void**)&record);
 174         if (stat != Ok)
 175             return stat;
 176
 177         record->Type = EmfPlusRecordTypeEndOfFile;
 178         record->Flags = 0;
 179
 180         METAFILE_WriteRecords(metafile);
 181     }
 182
 183     return Ok;
 184 }
 185
 186 GpStatus WINGDIPAPI GdipRecordMetafile(HDC hdc, EmfType type, GDIPCONST GpRectF *frameRect,
 187                                        MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc, GpMetafile **metafile)
 188 {
 189     HDC record_dc;
 190     REAL framerect_factor_x, framerect_factor_y;
 191     RECT rc;
 192     GpStatus stat;
 193
 194     TRACE("(%p %d %p %d %p %p)\n", hdc, type, frameRect, frameUnit, desc, metafile);
 195
 196     if (!hdc || type < EmfTypeEmfOnly || type > EmfTypeEmfPlusDual || !metafile)
 197         return InvalidParameter;
 198
 199     if (!frameRect)
 200     {
 201         FIXME("not implemented for NULL rect\n");
 202         return NotImplemented;
 203     }
 204
 205     switch (frameUnit)
 206     {
 207     case MetafileFrameUnitPixel:
 208         framerect_factor_x = 2540.0 / GetDeviceCaps(hdc, LOGPIXELSX);
 209         framerect_factor_y = 2540.0 / GetDeviceCaps(hdc, LOGPIXELSY);
 210         break;
 211     case MetafileFrameUnitPoint:
 212         framerect_factor_x = framerect_factor_y = 2540.0 / 72.0;
 213         break;
 214     case MetafileFrameUnitInch:
 215         framerect_factor_x = framerect_factor_y = 2540.0;
 216         break;
 217     case MetafileFrameUnitDocument:
 218         framerect_factor_x = framerect_factor_y = 2540.0 / 300.0;
 219         break;
 220     case MetafileFrameUnitMillimeter:
 221         framerect_factor_x = framerect_factor_y = 100.0;
 222         break;
 223     case MetafileFrameUnitGdi:
 224         framerect_factor_x = framerect_factor_y = 1.0;
 225         break;
 226     default:
 227         return InvalidParameter;
 228     }
 229
 230     rc.left = framerect_factor_x * frameRect->X;
 231     rc.top = framerect_factor_y * frameRect->Y;
 232     rc.right = rc.left + framerect_factor_x * frameRect->Width;
 233     rc.bottom = rc.top + framerect_factor_y * frameRect->Height;
 234
 235     record_dc = CreateEnhMetaFileW(hdc, NULL, &rc, desc);
 236
 237     if (!record_dc)
 238         return GenericError;
 239
 240     *metafile = GdipAlloc(sizeof(GpMetafile));
 241     if(!*metafile)
 242     {
 243         DeleteEnhMetaFile(CloseEnhMetaFile(record_dc));
 244         return OutOfMemory;
 245     }
 246
 247     (*metafile)->image.type = ImageTypeMetafile;
 248     (*metafile)->image.picture = NULL;
 249     (*metafile)->image.flags   = ImageFlagsNone;
 250     (*metafile)->image.palette = NULL;
 251     (*metafile)->bounds = *frameRect;
 252     (*metafile)->unit = frameUnit;
 253     (*metafile)->metafile_type = type;
 254     (*metafile)->record_dc = record_dc;
 255     (*metafile)->comment_data = NULL;
 256     (*metafile)->comment_data_size = 0;
 257     (*metafile)->comment_data_length = 0;
 258     (*metafile)->hemf = NULL;
 259
 260     stat = METAFILE_WriteHeader(*metafile, hdc);
 261
 262     if (stat != Ok)
 263     {
 264         DeleteEnhMetaFile(CloseEnhMetaFile(record_dc));
 265         GdipFree(*metafile);
 266         *metafile = NULL;
 267         return OutOfMemory;
 268     }
 269
 270     return stat;
 271 }
 272
 273 /*****************************************************************************
 274  * GdipRecordMetafileI [GDIPLUS.@]
 275  */
 276 GpStatus WINGDIPAPI GdipRecordMetafileI(HDC hdc, EmfType type, GDIPCONST GpRect *frameRect,
 277                                         MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc, GpMetafile **metafile)
 278 {
 279     GpRectF frameRectF, *pFrameRectF;
 280
 281     TRACE("(%p %d %p %d %p %p)\n", hdc, type, frameRect, frameUnit, desc, metafile);
 282
 283     if (frameRect)
 284     {
 285         frameRectF.X = frameRect->X;
 286         frameRectF.Y = frameRect->Y;
 287         frameRectF.Width = frameRect->Width;
 288         frameRectF.Height = frameRect->Height;
 289         pFrameRectF = &frameRectF;
 290     }
 291     else
 292         pFrameRectF = NULL;
 293
 294     return GdipRecordMetafile(hdc, type, pFrameRectF, frameUnit, desc, metafile);
 295 }
 296
 297 GpStatus METAFILE_GetGraphicsContext(GpMetafile* metafile, GpGraphics **result)
 298 {
 299     GpStatus stat;
 300
 301     if (!metafile->record_dc || metafile->record_graphics)
 302         return InvalidParameter;
 303
 304     stat = graphics_from_image((GpImage*)metafile, &metafile->record_graphics);
 305
 306     if (stat == Ok)
 307         *result = metafile->record_graphics;
 308
 309     return stat;
 310 }
 311
 312 GpStatus METAFILE_GetDC(GpMetafile* metafile, HDC *hdc)
 313 {
 314     if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
 315     {
 316         EmfPlusRecordHeader *record;
 317         GpStatus stat;
 318
 319         stat = METAFILE_AllocateRecord(metafile, sizeof(EmfPlusRecordHeader), (void**)&record);
 320         if (stat != Ok)
 321             return stat;
 322
 323         record->Type = EmfPlusRecordTypeGetDC;
 324         record->Flags = 0;
 325
 326         METAFILE_WriteRecords(metafile);
 327     }
 328
 329     *hdc = metafile->record_dc;
 330
 331     return Ok;
 332 }
 333
 334 static BOOL is_integer_rect(const GpRectF *rect)
 335 {
 336     SHORT x, y, width, height;
 337     x = rect->X;
 338     y = rect->Y;
 339     width = rect->Width;
 340     height = rect->Height;
 341     if (rect->X != (REAL)x || rect->Y != (REAL)y ||
 342         rect->Width != (REAL)width || rect->Height != (REAL)height)
 343         return FALSE;
 344     return TRUE;
 345 }
 346
 347 GpStatus METAFILE_FillRectangles(GpMetafile* metafile, GpBrush* brush,
 348     GDIPCONST GpRectF* rects, INT count)
 349 {
 350     if (metafile->metafile_type == MetafileTypeEmfPlusOnly || metafile->metafile_type == MetafileTypeEmfPlusDual)
 351     {
 352         EmfPlusFillRects *record;
 353         GpStatus stat;
 354         BOOL integer_rects=1;
 355         int i;
 356         DWORD brushid;
 357         int flags = 0;
 358
 359         if (brush->bt == BrushTypeSolidColor)
 360         {
 361             flags |= 0x8000;
 362             brushid = ((GpSolidFill*)brush)->color;
 363         }
 364         else
 365         {
 366             FIXME("brush serialization not implemented\n");
 367             return NotImplemented;
 368         }
 369
 370         for (i=0; i<count; i++)
 371         {
 372             if (!is_integer_rect(&rects[i]))
 373             {
 374                 integer_rects = 0;
 375                 break;
 376             }
 377         }
 378
 379         if (integer_rects)
 380             flags |= 0x4000;
 381
 382         stat = METAFILE_AllocateRecord(metafile,
 383             sizeof(EmfPlusFillRects) + count * (integer_rects ? sizeof(EmfPlusRect) : sizeof(GpRectF)),
 384             (void**)&record);
 385         if (stat != Ok)
 386             return stat;
 387
 388         record->Header.Type = EmfPlusRecordTypeFillRects;
 389         record->Header.Flags = flags;
 390         record->BrushID = brushid;
 391         record->Count = count;
 392
 393         if (integer_rects)
 394         {
 395             EmfPlusRect *record_rects = (EmfPlusRect*)(record+1);
 396             for (i=0; i<count; i++)
 397             {
 398                 record_rects[i].X = (SHORT)rects[i].X;
 399                 record_rects[i].Y = (SHORT)rects[i].Y;
 400                 record_rects[i].Width = (SHORT)rects[i].Width;
 401                 record_rects[i].Height = (SHORT)rects[i].Height;
 402             }
 403         }
 404         else
 405             memcpy(record+1, rects, sizeof(GpRectF) * count);
 406
 407         METAFILE_WriteRecords(metafile);
 408     }
 409
 410     return Ok;
 411 }
 412
 413 GpStatus METAFILE_ReleaseDC(GpMetafile* metafile, HDC hdc)
 414 {
 415     if (hdc != metafile->record_dc)
 416         return InvalidParameter;
 417
 418     return Ok;
 419 }
 420
 421 GpStatus METAFILE_GraphicsDeleted(GpMetafile* metafile)
 422 {
 423     GpStatus stat;
 424
 425     stat = METAFILE_WriteEndOfFile(metafile);
 426     metafile->record_graphics = NULL;
 427
 428     metafile->hemf = CloseEnhMetaFile(metafile->record_dc);
 429     metafile->record_dc = NULL;
 430
 431     GdipFree(metafile->comment_data);
 432     metafile->comment_data = NULL;
 433     metafile->comment_data_size = 0;
 434
 435     return stat;
 436 }
 437
 438 GpStatus WINGDIPAPI GdipGetHemfFromMetafile(GpMetafile *metafile, HENHMETAFILE *hEmf)
 439 {
 440     TRACE("(%p,%p)\n", metafile, hEmf);
 441
 442     if (!metafile || !hEmf || !metafile->hemf)
 443         return InvalidParameter;
 444
 445     *hEmf = metafile->hemf;
 446     metafile->hemf = NULL;
 447
 448     return Ok;
 449 }
 450
 451 static GpStatus METAFILE_PlaybackGetDC(GpMetafile *metafile)
 452 {
 453     GpStatus stat = Ok;
 454
 455     stat = GdipGetDC(metafile->playback_graphics, &metafile->playback_dc);
 456
 457     if (stat == Ok)
 458     {
 459         /* The result of GdipGetDC always expects device co-ordinates, but the
 460          * device co-ordinates of the source metafile do not correspond to
 461          * device co-ordinates of the destination. Therefore, we set up the DC
 462          * so that the metafile's bounds map to the destination points where we
 463          * are drawing this metafile. */
 464         SetMapMode(metafile->playback_dc, MM_ANISOTROPIC);
 465
 466         SetWindowOrgEx(metafile->playback_dc, metafile->bounds.X, metafile->bounds.Y, NULL);
 467         SetWindowExtEx(metafile->playback_dc, metafile->bounds.Width, metafile->bounds.Height, NULL);
 468
 469         SetViewportOrgEx(metafile->playback_dc, metafile->playback_points[0].X, metafile->playback_points[0].Y, NULL);
 470         SetViewportExtEx(metafile->playback_dc,
 471             metafile->playback_points[1].X - metafile->playback_points[0].X,
 472             metafile->playback_points[2].Y - metafile->playback_points[0].Y, NULL);
 473     }
 474
 475     return stat;
 476 }
 477
 478 static void METAFILE_PlaybackReleaseDC(GpMetafile *metafile)
 479 {
 480     if (metafile->playback_dc)
 481     {
 482         GdipReleaseDC(metafile->playback_graphics, metafile->playback_dc);
 483         metafile->playback_dc = NULL;
 484     }
 485 }
 486
 487 static GpStatus METAFILE_PlaybackUpdateWorldTransform(GpMetafile *metafile)
 488 {
 489     GpMatrix *real_transform;
 490     GpStatus stat;
 491
 492     stat = GdipCreateMatrix3(&metafile->src_rect, metafile->playback_points, &real_transform);
 493
 494     if (stat == Ok)
 495     {
 496         /* FIXME: Prepend page transform. */
 497
 498         stat = GdipMultiplyMatrix(real_transform, metafile->world_transform, MatrixOrderPrepend);
 499
 500         if (stat == Ok)
 501             stat = GdipSetWorldTransform(metafile->playback_graphics, real_transform);
 502
 503         GdipDeleteMatrix(real_transform);
 504     }
 505
 506     return stat;
 507 }
 508
 509 GpStatus WINGDIPAPI GdipPlayMetafileRecord(GDIPCONST GpMetafile *metafile,
 510     EmfPlusRecordType recordType, UINT flags, UINT dataSize, GDIPCONST BYTE *data)
 511 {
 512     GpStatus stat;
 513
 514     TRACE("(%p,%x,%x,%d,%p)\n", metafile, recordType, flags, dataSize, data);
 515
 516     if (!metafile || (dataSize && !data) || !metafile->playback_graphics)
 517         return InvalidParameter;
 518
 519     if (recordType >= 1 && recordType <= 0x7a)
 520     {
 521         /* regular EMF record */
 522         if (metafile->playback_dc)
 523         {
 524             ENHMETARECORD *record;
 525
 526             record = GdipAlloc(dataSize + 8);
 527
 528             if (record)
 529             {
 530                 record->iType = recordType;
 531                 record->nSize = dataSize + 8;
 532                 memcpy(record->dParm, data, dataSize);
 533
 534                 PlayEnhMetaFileRecord(metafile->playback_dc, metafile->handle_table,
 535                     record, metafile->handle_count);
 536
 537                 GdipFree(record);
 538             }
 539             else
 540                 return OutOfMemory;
 541         }
 542     }
 543     else
 544     {
 545         EmfPlusRecordHeader *header = (EmfPlusRecordHeader*)(data)-1;
 546
 547         METAFILE_PlaybackReleaseDC((GpMetafile*)metafile);
 548
 549         switch(recordType)
 550         {
 551         case EmfPlusRecordTypeHeader:
 552         case EmfPlusRecordTypeEndOfFile:
 553             break;
 554         case EmfPlusRecordTypeGetDC:
 555             METAFILE_PlaybackGetDC((GpMetafile*)metafile);
 556             break;
 557         case EmfPlusRecordTypeFillRects:
 558         {
 559             EmfPlusFillRects *record = (EmfPlusFillRects*)header;
 560             GpBrush *brush, *temp_brush=NULL;
 561             GpRectF *rects, *temp_rects=NULL;
 562
 563             if (dataSize + sizeof(EmfPlusRecordHeader) < sizeof(EmfPlusFillRects))
 564                 return InvalidParameter;
 565
 566             if (flags & 0x4000)
 567             {
 568                 if (dataSize + sizeof(EmfPlusRecordHeader) < sizeof(EmfPlusFillRects) + sizeof(EmfPlusRect) * record->Count)
 569                     return InvalidParameter;
 570             }
 571             else
 572             {
 573                 if (dataSize + sizeof(EmfPlusRecordHeader) < sizeof(EmfPlusFillRects) + sizeof(GpRectF) * record->Count)
 574                     return InvalidParameter;
 575             }
 576
 577             if (flags & 0x8000)
 578             {
 579                 stat = GdipCreateSolidFill((ARGB)record->BrushID, (GpSolidFill**)&temp_brush);
 580                 brush = temp_brush;
 581             }
 582             else
 583             {
 584                 FIXME("brush deserialization not implemented\n");
 585                 return NotImplemented;
 586             }
 587
 588             if (stat == Ok)
 589             {
 590                 if (flags & 0x4000)
 591                 {
 592                     EmfPlusRect *int_rects = (EmfPlusRect*)(record+1);
 593                     int i;
 594
 595                     rects = temp_rects = GdipAlloc(sizeof(GpRectF) * record->Count);
 596                     if (rects)
 597                     {
 598                         for (i=0; i<record->Count; i++)
 599                         {
 600                             rects[i].X = int_rects[i].X;
 601                             rects[i].Y = int_rects[i].Y;
 602                             rects[i].Width = int_rects[i].Width;
 603                             rects[i].Height = int_rects[i].Height;
 604                         }
 605                     }
 606                     else
 607                         stat = OutOfMemory;
 608                 }
 609                 else
 610                     rects = (GpRectF*)(record+1);
 611             }
 612
 613             if (stat == Ok)
 614             {
 615                 stat = GdipFillRectangles(metafile->playback_graphics, brush, rects, record->Count);
 616             }
 617
 618             GdipDeleteBrush(temp_brush);
 619             GdipFree(temp_rects);
 620
 621             return stat;
 622         }
 623         default:
 624             FIXME("Not implemented for record type %x\n", recordType);
 625             return NotImplemented;
 626         }
 627     }
 628
 629     return Ok;
 630 }
 631
 632 struct enum_metafile_data
 633 {
 634     EnumerateMetafileProc callback;
 635     void *callback_data;
 636     GpMetafile *metafile;
 637 };
 638
 639 static int CALLBACK enum_metafile_proc(HDC hDC, HANDLETABLE *lpHTable, const ENHMETARECORD *lpEMFR,
 640     int nObj, LPARAM lpData)
 641 {
 642     BOOL ret;
 643     struct enum_metafile_data *data = (struct enum_metafile_data*)lpData;
 644     const BYTE* pStr;
 645
 646     data->metafile->handle_table = lpHTable;
 647     data->metafile->handle_count = nObj;
 648
 649     /* First check for an EMF+ record. */
 650     if (lpEMFR->iType == EMR_GDICOMMENT)
 651     {
 652         const EMRGDICOMMENT *comment = (const EMRGDICOMMENT*)lpEMFR;
 653
 654         if (comment->cbData >= 4 && memcmp(comment->Data, "EMF+", 4) == 0)
 655         {
 656             int offset = 4;
 657
 658             while (offset + sizeof(EmfPlusRecordHeader) <= comment->cbData)
 659             {
 660                 const EmfPlusRecordHeader *record = (const EmfPlusRecordHeader*)&comment->Data[offset];
 661
 662                 if (record->DataSize)
 663                     pStr = (const BYTE*)(record+1);
 664                 else
 665                     pStr = NULL;
 666
 667                 ret = data->callback(record->Type, record->Flags, record->DataSize,
 668                     pStr, data->callback_data);
 669
 670                 if (!ret)
 671                     return 0;
 672
 673                 offset += record->Size;
 674             }
 675
 676             return 1;
 677         }
 678     }
 679
 680     if (lpEMFR->nSize != 8)
 681         pStr = (const BYTE*)lpEMFR->dParm;
 682     else
 683         pStr = NULL;
 684
 685     return data->callback(lpEMFR->iType, 0, lpEMFR->nSize-8,
 686         pStr, data->callback_data);
 687 }
 688
 689 GpStatus WINGDIPAPI GdipEnumerateMetafileSrcRectDestPoints(GpGraphics *graphics,
 690     GDIPCONST GpMetafile *metafile, GDIPCONST GpPointF *destPoints, INT count,
 691     GDIPCONST GpRectF *srcRect, Unit srcUnit, EnumerateMetafileProc callback,
 692     VOID *callbackData, GDIPCONST GpImageAttributes *imageAttributes)
 693 {
 694     struct enum_metafile_data data;
 695     GpStatus stat;
 696     GpMetafile *real_metafile = (GpMetafile*)metafile; /* whoever made this const was joking */
 697     GraphicsContainer state;
 698
 699     TRACE("(%p,%p,%p,%i,%p,%i,%p,%p,%p)\n", graphics, metafile,
 700         destPoints, count, srcRect, srcUnit, callback, callbackData,
 701         imageAttributes);
 702
 703     if (!graphics || !metafile || !destPoints || count != 3 || !srcRect)
 704         return InvalidParameter;
 705
 706     if (!metafile->hemf)
 707         return InvalidParameter;
 708
 709     if (metafile->playback_graphics)
 710         return ObjectBusy;
 711
 712     TRACE("%s %i -> %s %s %s\n", debugstr_rectf(srcRect), srcUnit,
 713         debugstr_pointf(&destPoints[0]), debugstr_pointf(&destPoints[1]),
 714         debugstr_pointf(&destPoints[2]));
 715
 716     data.callback = callback;
 717     data.callback_data = callbackData;
 718     data.metafile = real_metafile;
 719
 720     real_metafile->playback_graphics = graphics;
 721     real_metafile->playback_dc = NULL;
 722     real_metafile->src_rect = *srcRect;
 723
 724     memcpy(real_metafile->playback_points, destPoints, sizeof(PointF) * 3);
 725     stat = GdipTransformPoints(graphics, CoordinateSpaceDevice, CoordinateSpaceWorld, real_metafile->playback_points, 3);
 726
 727     if (stat == Ok)
 728         stat = GdipBeginContainer2(graphics, &state);
 729
 730     if (stat == Ok)
 731     {
 732         stat = GdipSetPageScale(graphics, 1.0);
 733
 734         if (stat == Ok)
 735             stat = GdipSetPageUnit(graphics, UnitPixel);
 736
 737         if (stat == Ok)
 738             stat = GdipCreateMatrix(&real_metafile->world_transform);
 739
 740         if (stat == Ok)
 741         {
 742             real_metafile->page_unit = UnitPixel; /* FIXME: Use frame unit here? */
 743             real_metafile->page_scale = 1.0;
 744             stat = METAFILE_PlaybackUpdateWorldTransform(real_metafile);
 745         }
 746
 747         if (stat == Ok && (metafile->metafile_type == MetafileTypeEmf ||
 748             metafile->metafile_type == MetafileTypeWmfPlaceable ||
 749             metafile->metafile_type == MetafileTypeWmf))
 750             stat = METAFILE_PlaybackGetDC(real_metafile);
 751
 752         if (stat == Ok)
 753             EnumEnhMetaFile(0, metafile->hemf, enum_metafile_proc, &data, NULL);
 754
 755         METAFILE_PlaybackReleaseDC(real_metafile);
 756
 757         GdipDeleteMatrix(real_metafile->world_transform);
 758         real_metafile->world_transform = NULL;
 759
 760         GdipEndContainer(graphics, state);
 761     }
 762
 763     real_metafile->playback_graphics = NULL;
 764
 765     return stat;
 766 }
 767
 768 GpStatus WINGDIPAPI GdipEnumerateMetafileDestRect(GpGraphics *graphics,
 769     GDIPCONST GpMetafile *metafile, GDIPCONST GpRectF *dest,
 770     EnumerateMetafileProc callback, VOID *cb_data, GDIPCONST GpImageAttributes *attrs)
 771 {
 772     GpPointF points[3];
 773
 774     if (!graphics || !metafile || !dest) return InvalidParameter;
 775
 776     points[0].X = points[2].X = dest->X;
 777     points[0].Y = points[1].Y = dest->Y;
 778     points[1].X = dest->X + dest->Width;
 779     points[2].Y = dest->Y + dest->Height;
 780
 781     return GdipEnumerateMetafileSrcRectDestPoints(graphics, metafile, points, 3,
 782         &metafile->bounds, metafile->unit, callback, cb_data, attrs);
 783 }
 784
 785 GpStatus WINGDIPAPI GdipEnumerateMetafileDestRectI(GpGraphics *graphics,
 786     GDIPCONST GpMetafile *metafile, GDIPCONST GpRect *dest,
 787     EnumerateMetafileProc callback, VOID *cb_data, GDIPCONST GpImageAttributes *attrs)
 788 {
 789     GpRectF destf;
 790
 791     if (!graphics || !metafile || !dest) return InvalidParameter;
 792
 793     destf.X = dest->X;
 794     destf.Y = dest->Y;
 795     destf.Width = dest->Width;
 796     destf.Height = dest->Height;
 797
 798     return GdipEnumerateMetafileDestRect(graphics, metafile, &destf, callback, cb_data, attrs);
 799 }
 800
 801 GpStatus WINGDIPAPI GdipEnumerateMetafileDestPoint(GpGraphics *graphics,
 802     GDIPCONST GpMetafile *metafile, GDIPCONST GpPointF *dest,
 803     EnumerateMetafileProc callback, VOID *cb_data, GDIPCONST GpImageAttributes *attrs)
 804 {
 805     GpRectF destf;
 806
 807     if (!graphics || !metafile || !dest) return InvalidParameter;
 808
 809     destf.X = dest->X;
 810     destf.Y = dest->Y;
 811     destf.Width = units_to_pixels(metafile->bounds.Width, metafile->unit, metafile->image.xres);
 812     destf.Height = units_to_pixels(metafile->bounds.Height, metafile->unit, metafile->image.yres);
 813
 814     return GdipEnumerateMetafileDestRect(graphics, metafile, &destf, callback, cb_data, attrs);
 815 }
 816
 817 GpStatus WINGDIPAPI GdipEnumerateMetafileDestPointI(GpGraphics *graphics,
 818     GDIPCONST GpMetafile *metafile, GDIPCONST GpPoint *dest,
 819     EnumerateMetafileProc callback, VOID *cb_data, GDIPCONST GpImageAttributes *attrs)
 820 {
 821     GpPointF ptf;
 822
 823     if (!graphics || !metafile || !dest) return InvalidParameter;
 824
 825     ptf.X = dest->X;
 826     ptf.Y = dest->Y;
 827
 828     return GdipEnumerateMetafileDestPoint(graphics, metafile, &ptf, callback, cb_data, attrs);
 829 }
 830
 831 static int CALLBACK get_metafile_type_proc(HDC hDC, HANDLETABLE *lpHTable, const ENHMETARECORD *lpEMFR,
 832     int nObj, LPARAM lpData)
 833 {
 834     MetafileType *result = (MetafileType*)lpData;
 835
 836     if (lpEMFR->iType == EMR_GDICOMMENT)
 837     {
 838         const EMRGDICOMMENT *comment = (const EMRGDICOMMENT*)lpEMFR;
 839
 840         if (comment->cbData >= 4 && memcmp(comment->Data, "EMF+", 4) == 0)
 841         {
 842             const EmfPlusRecordHeader *header = (const EmfPlusRecordHeader*)&comment->Data[4];
 843
 844             if (4 + sizeof(EmfPlusRecordHeader) <= comment->cbData &&
 845                 header->Type == EmfPlusRecordTypeHeader)
 846             {
 847                 if ((header->Flags & 1) == 1)
 848                     *result = MetafileTypeEmfPlusDual;
 849                 else
 850                     *result = MetafileTypeEmfPlusOnly;
 851             }
 852         }
 853         else
 854             *result = MetafileTypeEmf;
 855     }
 856     else
 857         *result = MetafileTypeEmf;
 858
 859     return FALSE;
 860 }
 861
 862 MetafileType METAFILE_GetEmfType(HENHMETAFILE hemf)
 863 {
 864     MetafileType result = MetafileTypeInvalid;
 865     EnumEnhMetaFile(NULL, hemf, get_metafile_type_proc, &result, NULL);
 866     return result;
 867 }