reactos/subsystems/win32/win32k/objects/bitmaps.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program 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
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$ */
  20
  21 #include <w32k.h>
  22
  23 #define NDEBUG
  24 #include <debug.h>
  25
  26 #define IN_RECT(r,x,y) \
  27 ( \
  28  (x) >= (r).left && \
  29  (y) >= (r).top && \
  30  (x) < (r).right && \
  31  (y) < (r).bottom \
  32 )
  33
  34 HBITMAP STDCALL
  35 IntGdiCreateBitmap(
  36     INT  Width,
  37     INT  Height,
  38     UINT  Planes,
  39     UINT  BitsPixel,
  40     IN OPTIONAL LPBYTE pBits)
  41 {
  42    HBITMAP hBitmap;
  43    SIZEL Size;
  44    LONG WidthBytes;
  45
  46    /* NOTE: Windows also doesn't store nr. of planes separately! */
  47    BitsPixel = BITMAPOBJ_GetRealBitsPixel(BitsPixel * Planes);
  48
  49    /* Check parameters */
  50    if (BitsPixel == 0 || Width < 0)
  51    {
  52       DPRINT1("Width = %d, Height = %d BitsPixel = %d\n", Width, Height, BitsPixel);
  53       SetLastWin32Error(ERROR_INVALID_PARAMETER);
  54       return 0;
  55    }
  56
  57    WidthBytes = BITMAPOBJ_GetWidthBytes(Width, BitsPixel);
  58
  59    Size.cx = Width;
  60    Size.cy = abs(Height);
  61
  62    /* Create the bitmap object. */
  63    hBitmap = IntCreateBitmap(Size, WidthBytes,
  64                              BitmapFormat(BitsPixel, BI_RGB),
  65                              (Height < 0 ? BMF_TOPDOWN : 0) |
  66                              (NULL == pBits ? 0 : BMF_NOZEROINIT), NULL);
  67    if (!hBitmap)
  68    {
  69       DPRINT("IntGdiCreateBitmap: returned 0\n");
  70       return 0;
  71    }
  72
  73    if (NULL != pBits)
  74    {
  75        PBITMAPOBJ bmp = BITMAPOBJ_LockBitmap( hBitmap );
  76        if (bmp == NULL)
  77        {
  78           NtGdiDeleteObject(hBitmap);
  79           return NULL;
  80        }
  81
  82        bmp->flFlags = BITMAPOBJ_IS_APIBITMAP;
  83
  84        IntSetBitmapBits(bmp, bmp->SurfObj.cjBits, pBits);
  85
  86
  87        BITMAPOBJ_UnlockBitmap( bmp );
  88    }
  89
  90    DPRINT("IntGdiCreateBitmap : %dx%d, %d BPP colors, topdown %d, returning %08x\n",
  91           Size.cx, Size.cy, BitsPixel, (Height < 0 ? 1 : 0), hBitmap);
  92
  93    return hBitmap;
  94 }
  95
  96
  97 HBITMAP STDCALL
  98 NtGdiCreateBitmap(
  99     INT  Width,
 100     INT  Height,
 101     UINT  Planes,
 102     UINT  BitsPixel,
 103     IN OPTIONAL LPBYTE pUnsafeBits)
 104 {
 105    HBITMAP hBitmap;
 106
 107    _SEH_TRY
 108    {
 109       if (pUnsafeBits)
 110       {
 111          UINT cjBits = BITMAPOBJ_GetWidthBytes(Width, BitsPixel) * Height;
 112          ProbeForRead(pUnsafeBits, cjBits, 1);
 113       }
 114
 115       if (0 == Width || 0 == Height)
 116       {
 117          hBitmap = IntGdiCreateBitmap (1, 1, 1, 1, NULL);
 118       }
 119       else
 120       {
 121         hBitmap = IntGdiCreateBitmap(Width, Height, Planes, BitsPixel, pUnsafeBits);
 122       }
 123    }
 124    _SEH_HANDLE
 125    {
 126       hBitmap = 0;
 127    }
 128    _SEH_END
 129
 130    return hBitmap;
 131 }
 132
 133 BOOL INTERNAL_CALL
 134 BITMAP_Cleanup(PVOID ObjectBody)
 135 {
 136         PBITMAPOBJ pBmp = (PBITMAPOBJ)ObjectBody;
 137         if (pBmp->SurfObj.pvBits != NULL &&
 138                 (pBmp->flFlags & BITMAPOBJ_IS_APIBITMAP))
 139         {
 140                 if (pBmp->dib == NULL)
 141                 {
 142                         if (pBmp->SurfObj.pvBits != NULL)
 143                             ExFreePool(pBmp->SurfObj.pvBits);
 144                 }
 145                 else
 146                 {
 147                         if (pBmp->SurfObj.pvBits != NULL)
 148                                 EngFreeUserMem(pBmp->SurfObj.pvBits);
 149                 }
 150                 if (pBmp->hDIBPalette != NULL)
 151                 {
 152                         NtGdiDeleteObject(pBmp->hDIBPalette);
 153                 }
 154         }
 155
 156         if (NULL != pBmp->BitsLock)
 157         {
 158                 ExFreePoolWithTag(pBmp->BitsLock, TAG_BITMAPOBJ);
 159                 pBmp->BitsLock = NULL;
 160         }
 161
 162         return TRUE;
 163 }
 164
 165
 166 HBITMAP FASTCALL
 167 IntCreateCompatibleBitmap(
 168         PDC Dc,
 169         INT Width,
 170         INT Height)
 171 {
 172         HBITMAP Bmp;
 173
 174         Bmp = NULL;
 175
 176         if ((Width >= 0x10000) || (Height >= 0x10000))
 177         {
 178                 DPRINT1("got bad width %d or height %d, please look for reason\n", Width, Height);
 179                 return NULL;
 180         }
 181
 182         /* MS doc says if width or height is 0, return 1-by-1 pixel, monochrome bitmap */
 183         if (0 == Width || 0 == Height)
 184         {
 185                 Bmp = IntGdiCreateBitmap (1, 1, 1, 1, NULL);
 186         }
 187         else
 188         {
 189                 Bmp = IntGdiCreateBitmap(Width, Height, 1, Dc->w.bitsPerPixel, NULL);
 190         }
 191
 192         return Bmp;
 193 }
 194
 195 HBITMAP STDCALL
 196 NtGdiCreateCompatibleBitmap(
 197         HDC hDC,
 198         INT Width,
 199         INT Height)
 200 {
 201         HBITMAP Bmp;
 202         PDC Dc;
 203
 204         Dc = DC_LockDc(hDC);
 205
 206         DPRINT("NtGdiCreateCompatibleBitmap(%04x,%d,%d, bpp:%d) = \n", hDC, Width, Height, Dc->w.bitsPerPixel);
 207
 208         if (NULL == Dc)
 209         {
 210                 SetLastWin32Error(ERROR_INVALID_HANDLE);
 211                 return NULL;
 212         }
 213
 214         Bmp = IntCreateCompatibleBitmap(Dc, Width, Height);
 215
 216         DPRINT ("\t\t%04x\n", Bmp);
 217         DC_UnlockDc(Dc);
 218         return Bmp;
 219 }
 220
 221 BOOL STDCALL
 222 NtGdiGetBitmapDimension(
 223         HBITMAP  hBitmap,
 224         LPSIZE  Dimension)
 225 {
 226         PBITMAPOBJ  bmp;
 227
 228         bmp = BITMAPOBJ_LockBitmap(hBitmap);
 229         if (bmp == NULL)
 230         {
 231                 return FALSE;
 232         }
 233
 234         *Dimension = bmp->dimension;
 235
 236         BITMAPOBJ_UnlockBitmap(bmp);
 237
 238         return  TRUE;
 239 }
 240
 241 COLORREF STDCALL
 242 NtGdiGetPixel(HDC hDC, INT XPos, INT YPos)
 243 {
 244         PDC dc = NULL;
 245         COLORREF Result = (COLORREF)CLR_INVALID; // default to failure
 246         BOOL bInRect = FALSE;
 247         BITMAPOBJ *BitmapObject;
 248         SURFOBJ *SurfaceObject;
 249         HPALETTE Pal = 0;
 250         XLATEOBJ *XlateObj;
 251         HBITMAP hBmpTmp;
 252
 253         dc = DC_LockDc (hDC);
 254
 255         if ( !dc )
 256         {
 257                 SetLastWin32Error(ERROR_INVALID_HANDLE);
 258                 return Result;
 259         }
 260         if (dc->IsIC)
 261         {
 262                 DC_UnlockDc(dc);
 263                 return Result;
 264         }
 265         XPos += dc->w.DCOrgX;
 266         YPos += dc->w.DCOrgY;
 267         if ( IN_RECT(dc->CombinedClip->rclBounds,XPos,YPos) )
 268         {
 269                 bInRect = TRUE;
 270                 BitmapObject = BITMAPOBJ_LockBitmap(dc->w.hBitmap);
 271                 SurfaceObject = &BitmapObject->SurfObj;
 272                 if ( BitmapObject )
 273                 {
 274                         if ( dc->w.hPalette != 0 )
 275                                 Pal = dc->w.hPalette;
 276                         /* FIXME: Verify if it shouldn't be PAL_BGR! */
 277                         XlateObj = (XLATEOBJ*)IntEngCreateXlate ( PAL_RGB, 0, NULL, Pal );
 278                         if ( XlateObj )
 279                         {
 280                                 // check if this DC has a DIB behind it...
 281                                 if ( SurfaceObject->pvScan0 ) // STYPE_BITMAP == SurfaceObject->iType
 282                                 {
 283                                         ASSERT ( SurfaceObject->lDelta );
 284                                         Result = XLATEOBJ_iXlate(XlateObj,
 285                                                 DibFunctionsForBitmapFormat[SurfaceObject->iBitmapFormat].DIB_GetPixel ( SurfaceObject, XPos, YPos ) );
 286                                 }
 287                                 EngDeleteXlate(XlateObj);
 288                         }
 289                         BITMAPOBJ_UnlockBitmap(BitmapObject);
 290                 }
 291         }
 292         DC_UnlockDc(dc);
 293
 294         // if Result is still CLR_INVALID, then the "quick" method above didn't work
 295         if ( bInRect && Result == CLR_INVALID )
 296         {
 297                 // FIXME: create a 1x1 32BPP DIB, and blit to it
 298                 HDC hDCTmp = NtGdiCreateCompatibleDC(hDC);
 299                 if ( hDCTmp )
 300                 {
 301                         static const BITMAPINFOHEADER bih = { sizeof(BITMAPINFOHEADER), 1, 1, 1, 32, BI_RGB, 0, 0, 0, 0, 0 };
 302                         BITMAPINFO bi;
 303                         RtlMoveMemory ( &(bi.bmiHeader), &bih, sizeof(bih) );
 304                         hBmpTmp = NtGdiCreateDIBitmap ( hDC, &bi.bmiHeader, 0, NULL, &bi, DIB_RGB_COLORS );
 305                         //HBITMAP hBmpTmp = IntGdiCreateBitmap ( 1, 1, 1, 32, NULL);
 306                         if ( hBmpTmp )
 307                         {
 308                                 HBITMAP hBmpOld = (HBITMAP)NtGdiSelectObject ( hDCTmp, hBmpTmp );
 309                                 if ( hBmpOld )
 310                                 {
 311                                         PBITMAPOBJ bmpobj;
 312
 313                                         NtGdiBitBlt ( hDCTmp, 0, 0, 1, 1, hDC, XPos, YPos, SRCCOPY, 0, 0 );
 314                                         NtGdiSelectObject ( hDCTmp, hBmpOld );
 315
 316                                         // our bitmap is no longer selected, so we can access it's stuff...
 317                                         bmpobj = BITMAPOBJ_LockBitmap ( hBmpTmp );
 318                                         if ( bmpobj )
 319                                         {
 320                                                 Result = *(COLORREF*)bmpobj->SurfObj.pvScan0;
 321                                                 BITMAPOBJ_UnlockBitmap ( bmpobj );
 322                                         }
 323                                 }
 324                                 NtGdiDeleteObject ( hBmpTmp );
 325                         }
 326                         NtGdiDeleteObjectApp ( hDCTmp );
 327                 }
 328         }
 329
 330         return Result;
 331 }
 332
 333
 334 LONG STDCALL
 335 IntGetBitmapBits(
 336         PBITMAPOBJ bmp,
 337         DWORD Bytes,
 338         OUT PBYTE Bits)
 339 {
 340         LONG ret;
 341
 342         ASSERT(Bits);
 343
 344         /* Don't copy more bytes than the buffer has */
 345         Bytes = min(Bytes, bmp->SurfObj.cjBits);
 346
 347 #if 0
 348         /* FIXME: Call DDI CopyBits here if available  */
 349         if(bmp->DDBitmap)
 350         {
 351                 DPRINT("Calling device specific BitmapBits\n");
 352                 if(bmp->DDBitmap->funcs->pBitmapBits)
 353                 {
 354                         ret = bmp->DDBitmap->funcs->pBitmapBits(hbitmap, bits, count, DDB_GET);
 355                 }
 356                 else
 357                 {
 358                         ERR_(bitmap)("BitmapBits == NULL??\n");
 359                         ret = 0;
 360                 }
 361         }
 362         else
 363 #endif
 364         {
 365                 RtlCopyMemory(Bits, bmp->SurfObj.pvBits, Bytes);
 366                 ret = Bytes;
 367         }
 368         return ret;
 369 }
 370
 371 LONG STDCALL
 372 NtGdiGetBitmapBits(HBITMAP  hBitmap,
 373                    ULONG  Bytes,
 374                    OUT OPTIONAL PBYTE pUnsafeBits)
 375 {
 376         PBITMAPOBJ  bmp;
 377         LONG  ret;
 378
 379         if (pUnsafeBits != NULL && Bytes == 0)
 380         {
 381                 return 0;
 382         }
 383
 384         bmp = BITMAPOBJ_LockBitmap (hBitmap);
 385         if (!bmp)
 386         {
 387                 SetLastWin32Error(ERROR_INVALID_HANDLE);
 388                 return 0;
 389         }
 390
 391         /* If the bits vector is null, the function should return the read size */
 392         if (pUnsafeBits == NULL)
 393         {
 394                 ret = bmp->SurfObj.cjBits;
 395                 BITMAPOBJ_UnlockBitmap (bmp);
 396                 return ret;
 397         }
 398
 399         /* Don't copy more bytes than the buffer has */
 400         Bytes = min(Bytes, bmp->SurfObj.cjBits);
 401
 402         _SEH_TRY
 403         {
 404                 ProbeForWrite(pUnsafeBits, Bytes, 1);
 405                 ret = IntGetBitmapBits(bmp, Bytes, pUnsafeBits);
 406         }
 407         _SEH_HANDLE
 408         {
 409                 ret = 0;
 410         }
 411         _SEH_END
 412
 413         BITMAPOBJ_UnlockBitmap (bmp);
 414
 415         return  ret;
 416 }
 417
 418
 419 LONG STDCALL
 420 IntSetBitmapBits(
 421         PBITMAPOBJ bmp,
 422         DWORD  Bytes,
 423         IN PBYTE Bits)
 424 {
 425         LONG ret;
 426
 427         /* Don't copy more bytes than the buffer has */
 428         Bytes = min(Bytes, bmp->SurfObj.cjBits);
 429
 430 #if 0
 431         /* FIXME: call DDI specific function here if available  */
 432         if(bmp->DDBitmap)
 433         {
 434                 DPRINT ("Calling device specific BitmapBits\n");
 435                 if (bmp->DDBitmap->funcs->pBitmapBits)
 436                 {
 437                         ret = bmp->DDBitmap->funcs->pBitmapBits(hBitmap, (void *) Bits, Bytes, DDB_SET);
 438                 }
 439                 else
 440                 {
 441                         DPRINT ("BitmapBits == NULL??\n");
 442                         ret = 0;
 443                 }
 444         }
 445         else
 446 #endif
 447         {
 448                 RtlCopyMemory(bmp->SurfObj.pvBits, Bits, Bytes);
 449                 ret = Bytes;
 450         }
 451
 452         return ret;
 453 }
 454
 455
 456 LONG STDCALL
 457 NtGdiSetBitmapBits(
 458         HBITMAP  hBitmap,
 459         DWORD  Bytes,
 460         IN PBYTE pUnsafeBits)
 461 {
 462         LONG ret;
 463         PBITMAPOBJ bmp;
 464
 465         if (pUnsafeBits == NULL || Bytes == 0)
 466         {
 467                 return 0;
 468         }
 469
 470         bmp = BITMAPOBJ_LockBitmap(hBitmap);
 471         if (bmp == NULL)
 472         {
 473                 SetLastWin32Error(ERROR_INVALID_HANDLE);
 474                 return 0;
 475         }
 476
 477         _SEH_TRY
 478         {
 479                 ProbeForRead(pUnsafeBits, Bytes, 1);
 480                 ret = IntSetBitmapBits(bmp, Bytes, pUnsafeBits);
 481         }
 482         _SEH_HANDLE
 483         {
 484                 ret = 0;
 485         }
 486         _SEH_END
 487
 488         BITMAPOBJ_UnlockBitmap(bmp);
 489
 490         return ret;
 491 }
 492
 493 BOOL STDCALL
 494 NtGdiSetBitmapDimension(
 495         HBITMAP  hBitmap,
 496         INT  Width,
 497         INT  Height,
 498         LPSIZE  Size)
 499 {
 500         PBITMAPOBJ  bmp;
 501
 502         bmp = BITMAPOBJ_LockBitmap(hBitmap);
 503         if (bmp == NULL)
 504         {
 505                 return FALSE;
 506         }
 507
 508         if (Size)
 509         {
 510                 *Size = bmp->dimension;
 511         }
 512         bmp->dimension.cx = Width;
 513         bmp->dimension.cy = Height;
 514
 515         BITMAPOBJ_UnlockBitmap (bmp);
 516
 517         return TRUE;
 518 }
 519
 520 BOOL STDCALL
 521 GdiSetPixelV(
 522         HDC  hDC,
 523         INT  X,
 524         INT  Y,
 525         COLORREF  Color)
 526 {
 527         HBRUSH NewBrush = NtGdiCreateSolidBrush(Color, NULL);
 528         HGDIOBJ OldBrush;
 529
 530         if (NewBrush == NULL)
 531                 return(FALSE);
 532         OldBrush = NtGdiSelectObject(hDC, NewBrush);
 533         if (OldBrush == NULL)
 534         {
 535                 NtGdiDeleteObject(NewBrush);
 536                 return(FALSE);
 537         }
 538         NtGdiPatBlt(hDC, X, Y, 1, 1, PATCOPY);
 539         NtGdiSelectObject(hDC, OldBrush);
 540         NtGdiDeleteObject(NewBrush);
 541         return TRUE;
 542 }
 543
 544 COLORREF STDCALL
 545 NtGdiSetPixel(
 546         HDC  hDC,
 547         INT  X,
 548         INT  Y,
 549         COLORREF  Color)
 550 {
 551         DPRINT("0 NtGdiSetPixel X %ld Y %ld C %ld\n",X,Y,Color);
 552
 553         if (GdiSetPixelV(hDC,X,Y,Color))
 554         {
 555                 Color = NtGdiGetPixel(hDC,X,Y);
 556                 DPRINT("1 NtGdiSetPixel X %ld Y %ld C %ld\n",X,Y,Color);
 557                 return Color;
 558         }
 559
 560         Color = ((COLORREF) CLR_INVALID);
 561         DPRINT("2 NtGdiSetPixel X %ld Y %ld C %ld\n",X,Y,Color);
 562         return Color;
 563 }
 564
 565
 566 /*  Internal Functions  */
 567
 568 INT FASTCALL
 569 BITMAPOBJ_GetRealBitsPixel(INT nBitsPixel)
 570 {
 571         if (nBitsPixel < 0)
 572                 return 0;
 573         if (nBitsPixel <= 1)
 574                 return 1;
 575         if (nBitsPixel <= 2)
 576                 return 2;
 577         if (nBitsPixel <= 4)
 578                 return 4;
 579         if (nBitsPixel <= 8)
 580                 return 8;
 581         if (nBitsPixel <= 16)
 582                 return 16;
 583         if (nBitsPixel <= 24)
 584                 return 24;
 585         if (nBitsPixel <= 32)
 586                 return 32;
 587
 588         return 0;
 589 }
 590
 591 INT FASTCALL
 592 BITMAPOBJ_GetWidthBytes (INT bmWidth, INT bpp)
 593 {
 594 #if 0
 595         switch(bpp)
 596         {
 597         case 1:
 598                 return 2 * ((bmWidth+15) >> 4);
 599
 600         case 24:
 601                 bmWidth *= 3; /* fall through */
 602         case 8:
 603                 return bmWidth + (bmWidth & 1);
 604
 605         case 32:
 606                 return bmWidth * 4;
 607
 608         case 16:
 609         case 15:
 610                 return bmWidth * 2;
 611
 612         case 4:
 613                 return 2 * ((bmWidth+3) >> 2);
 614
 615         default:
 616                 DPRINT ("stub");
 617         }
 618
 619         return -1;
 620 #endif
 621
 622         return ((bmWidth * bpp + 15) & ~15) >> 3;
 623 }
 624
 625 HBITMAP FASTCALL
 626 BITMAPOBJ_CopyBitmap(HBITMAP  hBitmap)
 627 {
 628         HBITMAP  res;
 629         BITMAP  bm;
 630         BITMAPOBJ *Bitmap, *resBitmap;
 631         SIZEL Size;
 632
 633         if (hBitmap == NULL)
 634         {
 635                 return 0;
 636         }
 637
 638         Bitmap = GDIOBJ_LockObj(GdiHandleTable, hBitmap, GDI_OBJECT_TYPE_BITMAP);
 639         if (Bitmap == NULL)
 640         {
 641                 return 0;
 642         }
 643
 644         BITMAP_GetObject(Bitmap, sizeof(BITMAP), &bm);
 645         bm.bmBits = NULL;
 646         if (Bitmap->SurfObj.lDelta >= 0)
 647                 bm.bmHeight = -bm.bmHeight;
 648
 649         Size.cx = abs(bm.bmWidth);
 650         Size.cy = abs(bm.bmHeight);
 651         res = IntCreateBitmap(Size,
 652                               bm.bmWidthBytes,
 653                               BitmapFormat(bm.bmBitsPixel * bm.bmPlanes, BI_RGB),
 654                               (bm.bmHeight < 0 ? BMF_TOPDOWN : 0) | BMF_NOZEROINIT,
 655                               NULL);
 656
 657         if(res)
 658         {
 659                 PBYTE buf;
 660
 661                 resBitmap = GDIOBJ_LockObj(GdiHandleTable, res, GDI_OBJECT_TYPE_BITMAP);
 662                 if (resBitmap)
 663                 {
 664                         buf = ExAllocatePoolWithTag (PagedPool, bm.bmWidthBytes * abs(bm.bmHeight), TAG_BITMAP);
 665                         IntGetBitmapBits (Bitmap, bm.bmWidthBytes * abs(bm.bmHeight), buf);
 666                         IntSetBitmapBits (resBitmap, bm.bmWidthBytes * abs(bm.bmHeight), buf);
 667                         ExFreePool (buf);
 668                         GDIOBJ_UnlockObjByPtr(GdiHandleTable, resBitmap);
 669                 }
 670         }
 671
 672         GDIOBJ_UnlockObjByPtr(GdiHandleTable, Bitmap);
 673
 674         return  res;
 675 }
 676
 677 INT STDCALL
 678 BITMAP_GetObject(BITMAPOBJ * bmp, INT Count, LPVOID buffer)
 679 {
 680         if ((UINT)Count < sizeof(BITMAP)) return 0;
 681
 682         if(bmp->dib)
 683         {
 684                 if((UINT)Count < sizeof(DIBSECTION))
 685                 {
 686                         Count = sizeof(BITMAP);
 687                 }
 688                 else
 689                 {
 690                         Count = sizeof(DIBSECTION);
 691                 }
 692                 if (buffer)
 693                 {
 694                         memcpy(buffer, bmp->dib, Count);
 695                 }
 696                 return Count;
 697         }
 698         else
 699         {
 700                 Count = sizeof(BITMAP);
 701                 if (buffer)
 702                 {
 703                         BITMAP Bitmap;
 704
 705                         Count = sizeof(BITMAP);
 706                         Bitmap.bmType = 0;
 707                         Bitmap.bmWidth = bmp->SurfObj.sizlBitmap.cx;
 708                         Bitmap.bmHeight = bmp->SurfObj.sizlBitmap.cy;
 709                         Bitmap.bmWidthBytes = abs(bmp->SurfObj.lDelta);
 710                         Bitmap.bmPlanes = 1;
 711                         Bitmap.bmBitsPixel = BitsPerFormat(bmp->SurfObj.iBitmapFormat);
 712                         //Bitmap.bmBits = bmp->SurfObj.pvBits;
 713                         Bitmap.bmBits = NULL; /* not set accoring wine test confirm in win2k */
 714                         memcpy(buffer, &Bitmap, Count);
 715                 }
 716                 return Count;
 717         }
 718 }
 719 /* EOF */