objects/dib.c

   1 /*
   2  * GDI device-independent bitmaps
   3  *
   4  * Copyright 1993,1994  Alexandre Julliard
   5  *
   6  * TODO: Still contains some references to X11DRV.
   7  */
   8
   9 #include "ts_xlib.h"
  10 #include "x11drv.h"
  11
  12 #include <stdlib.h>
  13 #include "dc.h"
  14 #include "bitmap.h"
  15 #include "callback.h"
  16 #include "palette.h"
  17 #include "global.h"
  18 #include "selectors.h"
  19 #include "debug.h"
  20 #include "local.h"
  21 #include "xmalloc.h" /* for XCREATEIMAGE macro */
  22 #include "monitor.h"
  23
  24
  25 /***********************************************************************
  26  *           DIB_GetDIBWidthBytes
  27  *
  28  * Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
  29  * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/struc/src/str01.htm
  30  */
  31 int DIB_GetDIBWidthBytes( int width, int depth )
  32 {
  33     int words;
  34
  35     switch(depth)
  36     {
  37         case 1:  words = (width + 31) / 32; break;
  38         case 4:  words = (width + 7) / 8; break;
  39         case 8:  words = (width + 3) / 4; break;
  40         case 15:
  41         case 16: words = (width + 1) / 2; break;
  42         case 24: words = (width * 3 + 3)/4; break;
  43
  44         default:
  45             WARN(bitmap, "(%d): Unsupported depth\n", depth );
  46         /* fall through */
  47         case 32:
  48                 words = width;
  49     }
  50     return 4 * words;
  51 }
  52
  53
  54 /***********************************************************************
  55  *           DIB_BitmapInfoSize
  56  *
  57  * Return the size of the bitmap info structure including color table.
  58  */
  59 int DIB_BitmapInfoSize( BITMAPINFO * info, WORD coloruse )
  60 {
  61     int colors;
  62
  63     if (info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
  64     {
  65         BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)info;
  66         colors = (core->bcBitCount <= 8) ? 1 << core->bcBitCount : 0;
  67         return sizeof(BITMAPCOREHEADER) + colors *
  68              ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBTRIPLE) : sizeof(WORD));
  69     }
  70     else  /* assume BITMAPINFOHEADER */
  71     {
  72         colors = info->bmiHeader.biClrUsed;
  73         if (!colors && (info->bmiHeader.biBitCount <= 8))
  74             colors = 1 << info->bmiHeader.biBitCount;
  75         return sizeof(BITMAPINFOHEADER) + colors *
  76                ((coloruse == DIB_RGB_COLORS) ? sizeof(RGBQUAD) : sizeof(WORD));
  77     }
  78 }
  79
  80
  81 /***********************************************************************
  82  *           DIB_GetBitmapInfo
  83  *
  84  * Get the info from a bitmap header.
  85  * Return 1 for INFOHEADER, 0 for COREHEADER, -1 for error.
  86  */
  87 int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, DWORD *width,
  88                               int *height, WORD *bpp, WORD *compr )
  89 {
  90     if (header->biSize == sizeof(BITMAPINFOHEADER))
  91     {
  92         *width  = header->biWidth;
  93         *height = header->biHeight;
  94         *bpp    = header->biBitCount;
  95         *compr  = header->biCompression;
  96         return 1;
  97     }
  98     if (header->biSize == sizeof(BITMAPCOREHEADER))
  99     {
 100         BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)header;
 101         *width  = core->bcWidth;
 102         *height = core->bcHeight;
 103         *bpp    = core->bcBitCount;
 104         *compr  = 0;
 105         return 0;
 106     }
 107     WARN(bitmap, "(%ld): wrong size for header\n", header->biSize );
 108     return -1;
 109 }
 110
 111
 112 /***********************************************************************
 113  *           StretchDIBits16   (GDI.439)
 114  */
 115 INT16 WINAPI StretchDIBits16(HDC16 hdc, INT16 xDst, INT16 yDst, INT16 widthDst,
 116                        INT16 heightDst, INT16 xSrc, INT16 ySrc, INT16 widthSrc,
 117                        INT16 heightSrc, const VOID *bits,
 118                        const BITMAPINFO *info, UINT16 wUsage, DWORD dwRop )
 119 {
 120     return (INT16)StretchDIBits( hdc, xDst, yDst, widthDst, heightDst,
 121                                    xSrc, ySrc, widthSrc, heightSrc, bits,
 122                                    info, wUsage, dwRop );
 123 }
 124
 125
 126 /***********************************************************************
 127  *           StretchDIBits32   (GDI32.351)
 128  */
 129 INT WINAPI StretchDIBits(HDC hdc, INT xDst, INT yDst, INT widthDst,
 130                        INT heightDst, INT xSrc, INT ySrc, INT widthSrc,
 131                        INT heightSrc, const void *bits,
 132                        const BITMAPINFO *info, UINT wUsage, DWORD dwRop )
 133 {
 134     DC *dc = DC_GetDCPtr( hdc );
 135     if(!dc) return FALSE;
 136
 137     if(dc->funcs->pStretchDIBits)
 138            return dc->funcs->pStretchDIBits(dc, xDst, yDst, widthDst,
 139                                             heightDst, xSrc, ySrc, widthSrc,
 140                                             heightSrc, bits, info, wUsage,
 141                                             dwRop);
 142     else { /* use StretchBlt32 */
 143         HBITMAP hBitmap, hOldBitmap;
 144         HDC hdcMem;
 145
 146         hBitmap = CreateDIBitmap( hdc, &info->bmiHeader, CBM_INIT,
 147                                     bits, info, wUsage );
 148         hdcMem = CreateCompatibleDC( hdc );
 149         hOldBitmap = SelectObject( hdcMem, hBitmap );
 150         /* Origin for DIBitmap is bottom left ! */
 151         StretchBlt( hdc, xDst, yDst, widthDst, heightDst,
 152                       hdcMem, xSrc, info->bmiHeader.biHeight - heightSrc - ySrc,
 153                       widthSrc, heightSrc, dwRop );
 154         SelectObject( hdcMem, hOldBitmap );
 155         DeleteDC( hdcMem );
 156         DeleteObject( hBitmap );
 157         return heightSrc;
 158     }
 159 }
 160
 161
 162 /***********************************************************************
 163  *           SetDIBits16    (GDI.440)
 164  */
 165 INT16 WINAPI SetDIBits16( HDC16 hdc, HBITMAP16 hbitmap, UINT16 startscan,
 166                           UINT16 lines, LPCVOID bits, const BITMAPINFO *info,
 167                           UINT16 coloruse )
 168 {
 169     return SetDIBits( hdc, hbitmap, startscan, lines, bits, info, coloruse );
 170 }
 171
 172
 173 /******************************************************************************
 174  * SetDIBits32 [GDI32.312]  Sets pixels in a bitmap using colors from DIB
 175  *
 176  * PARAMS
 177  *    hdc       [I] Handle to device context
 178  *    hbitmap   [I] Handle to bitmap
 179  *    startscan [I] Starting scan line
 180  *    lines     [I] Number of scan lines
 181  *    bits      [I] Array of bitmap bits
 182  *    info      [I] Address of structure with data
 183  *    coloruse  [I] Type of color indexes to use
 184  *
 185  * RETURNS
 186  *    Success: Number of scan lines copied
 187  *    Failure: 0
 188  */
 189 INT WINAPI SetDIBits( HDC hdc, HBITMAP hbitmap, UINT startscan,
 190                           UINT lines, LPCVOID bits, const BITMAPINFO *info,
 191                           UINT coloruse )
 192 {
 193     DIB_SETIMAGEBITS_DESCR descr;
 194     BITMAPOBJ * bmp;
 195     int height, tmpheight;
 196     INT result;
 197
 198       /* Check parameters */
 199
 200     descr.dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 201     if (!descr.dc)
 202     {
 203         descr.dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 204         if (!descr.dc) return 0;
 205     }
 206     if (!(bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbitmap, BITMAP_MAGIC )))
 207     {
 208         GDI_HEAP_UNLOCK( hdc );
 209         return 0;
 210     }
 211     if (DIB_GetBitmapInfo( &info->bmiHeader, &descr.infoWidth, &height,
 212                            &descr.infoBpp, &descr.compression ) == -1)
 213     {
 214         GDI_HEAP_UNLOCK( hbitmap );
 215         GDI_HEAP_UNLOCK( hdc );
 216         return 0;
 217     }
 218     tmpheight = height;
 219     if (height < 0) height = -height;
 220     if (!lines || (startscan >= height))
 221     {
 222         GDI_HEAP_UNLOCK( hbitmap );
 223         GDI_HEAP_UNLOCK( hdc );
 224         return 0;
 225     }
 226     if (startscan + lines > height) lines = height - startscan;
 227
 228     if (descr.infoBpp <= 8)
 229     {
 230         descr.colorMap = X11DRV_DIB_BuildColorMap( descr.dc, coloruse,
 231                                                    bmp->bitmap.bmBitsPixel,
 232                                                    info, &descr.nColorMap );
 233         if (!descr.colorMap)
 234         {
 235             GDI_HEAP_UNLOCK( hbitmap );
 236             GDI_HEAP_UNLOCK( hdc );
 237             return 0;
 238         }
 239     } else
 240         descr.colorMap = 0;
 241
 242     /* HACK for now */
 243     if(!bmp->DDBitmap)
 244         X11DRV_CreateBitmap(hbitmap);
 245 {
 246     X11DRV_PHYSBITMAP *pbitmap = bmp->DDBitmap->physBitmap;
 247
 248
 249     descr.bits      = bits;
 250     descr.image     = NULL;
 251     descr.lines     = tmpheight >= 0 ? lines : -lines;
 252     descr.depth     = bmp->bitmap.bmBitsPixel;
 253     descr.drawable  = pbitmap->pixmap;
 254     descr.gc        = BITMAP_GC(bmp);
 255     descr.xSrc      = 0;
 256     descr.ySrc      = 0;
 257     descr.xDest     = 0;
 258     descr.yDest     = height - startscan - lines;
 259     descr.width     = bmp->bitmap.bmWidth;
 260     descr.height    = lines;
 261 }
 262     EnterCriticalSection( &X11DRV_CritSection );
 263     result = CALL_LARGE_STACK( X11DRV_DIB_SetImageBits, &descr );
 264     LeaveCriticalSection( &X11DRV_CritSection );
 265
 266     if (descr.colorMap) HeapFree(GetProcessHeap(), 0, descr.colorMap);
 267
 268     GDI_HEAP_UNLOCK( hdc );
 269     GDI_HEAP_UNLOCK( hbitmap );
 270     return result;
 271 }
 272
 273
 274 /***********************************************************************
 275  *           SetDIBitsToDevice16    (GDI.443)
 276  */
 277 INT16 WINAPI SetDIBitsToDevice16(HDC16 hdc, INT16 xDest, INT16 yDest, INT16 cx,
 278                            INT16 cy, INT16 xSrc, INT16 ySrc, UINT16 startscan,
 279                            UINT16 lines, LPCVOID bits, const BITMAPINFO *info,
 280                            UINT16 coloruse )
 281 {
 282     return SetDIBitsToDevice( hdc, xDest, yDest, cx, cy, xSrc, ySrc,
 283                                 startscan, lines, bits, info, coloruse );
 284 }
 285
 286
 287 /***********************************************************************
 288  *           SetDIBitsToDevice32   (GDI32.313)
 289  */
 290 INT WINAPI SetDIBitsToDevice(HDC hdc, INT xDest, INT yDest, DWORD cx,
 291                            DWORD cy, INT xSrc, INT ySrc, UINT startscan,
 292                            UINT lines, LPCVOID bits, const BITMAPINFO *info,
 293                            UINT coloruse )
 294 {
 295     INT ret;
 296     DC *dc;
 297
 298     if (!(dc = DC_GetDCPtr( hdc ))) return 0;
 299
 300     if(dc->funcs->pSetDIBitsToDevice)
 301         ret = dc->funcs->pSetDIBitsToDevice( dc, xDest, yDest, cx, cy, xSrc,
 302                                              ySrc, startscan, lines, bits,
 303                                              info, coloruse );
 304     else {
 305         FIXME(bitmap, "unimplemented on hdc %08x\n", hdc);
 306         ret = 0;
 307     }
 308
 309     GDI_HEAP_UNLOCK( hdc );
 310     return ret;
 311 }
 312
 313 /***********************************************************************
 314  *           SetDIBColorTable16    (GDI.602)
 315  */
 316 UINT16 WINAPI SetDIBColorTable16( HDC16 hdc, UINT16 startpos, UINT16 entries,
 317                                   RGBQUAD *colors )
 318 {
 319     return SetDIBColorTable( hdc, startpos, entries, colors );
 320 }
 321
 322 /***********************************************************************
 323  *           SetDIBColorTable32    (GDI32.311)
 324  */
 325 UINT WINAPI SetDIBColorTable( HDC hdc, UINT startpos, UINT entries,
 326                                   RGBQUAD *colors )
 327 {
 328     DC * dc;
 329     PALETTEENTRY * palEntry;
 330     PALETTEOBJ * palette;
 331     RGBQUAD *end;
 332
 333     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 334     if (!dc)
 335     {
 336         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 337         if (!dc) return 0;
 338     }
 339
 340     if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC )))
 341     {
 342         return 0;
 343     }
 344
 345     /* Transfer color info */
 346
 347     if (dc->w.bitsPerPixel <= 8) {
 348         palEntry = palette->logpalette.palPalEntry + startpos;
 349         if (startpos + entries > (1 << dc->w.bitsPerPixel)) {
 350             entries = (1 << dc->w.bitsPerPixel) - startpos;
 351         }
 352         for (end = colors + entries; colors < end; palEntry++, colors++)
 353         {
 354             palEntry->peRed   = colors->rgbRed;
 355             palEntry->peGreen = colors->rgbGreen;
 356             palEntry->peBlue  = colors->rgbBlue;
 357         }
 358     } else {
 359         entries = 0;
 360     }
 361     GDI_HEAP_UNLOCK( dc->w.hPalette );
 362     return entries;
 363 }
 364
 365 /***********************************************************************
 366  *           GetDIBColorTable16    (GDI.603)
 367  */
 368 UINT16 WINAPI GetDIBColorTable16( HDC16 hdc, UINT16 startpos, UINT16 entries,
 369                                   RGBQUAD *colors )
 370 {
 371     return GetDIBColorTable( hdc, startpos, entries, colors );
 372 }
 373
 374 /***********************************************************************
 375  *           GetDIBColorTable32    (GDI32.169)
 376  */
 377 UINT WINAPI GetDIBColorTable( HDC hdc, UINT startpos, UINT entries,
 378                                   RGBQUAD *colors )
 379 {
 380     DC * dc;
 381     PALETTEENTRY * palEntry;
 382     PALETTEOBJ * palette;
 383     RGBQUAD *end;
 384
 385     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 386     if (!dc)
 387     {
 388         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 389         if (!dc) return 0;
 390     }
 391
 392     if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC )))
 393     {
 394         return 0;
 395     }
 396
 397     /* Transfer color info */
 398
 399     if (dc->w.bitsPerPixel <= 8) {
 400         palEntry = palette->logpalette.palPalEntry + startpos;
 401         if (startpos + entries > (1 << dc->w.bitsPerPixel)) {
 402             entries = (1 << dc->w.bitsPerPixel) - startpos;
 403         }
 404         for (end = colors + entries; colors < end; palEntry++, colors++)
 405         {
 406             colors->rgbRed      = palEntry->peRed;
 407             colors->rgbGreen    = palEntry->peGreen;
 408             colors->rgbBlue     = palEntry->peBlue;
 409             colors->rgbReserved = 0;
 410         }
 411     } else {
 412         entries = 0;
 413     }
 414     GDI_HEAP_UNLOCK( dc->w.hPalette );
 415     return entries;
 416 }
 417
 418 /***********************************************************************
 419  *           GetDIBits16    (GDI.441)
 420  */
 421 INT16 WINAPI GetDIBits16( HDC16 hdc, HBITMAP16 hbitmap, UINT16 startscan,
 422                           UINT16 lines, LPVOID bits, BITMAPINFO * info,
 423                           UINT16 coloruse )
 424 {
 425     return GetDIBits( hdc, hbitmap, startscan, lines, bits, info, coloruse );
 426 }
 427
 428
 429 /******************************************************************************
 430  * GetDIBits32 [GDI32.170]  Retrieves bits of bitmap and copies to buffer
 431  *
 432  * RETURNS
 433  *    Success: Number of scan lines copied from bitmap
 434  *    Failure: 0
 435  *
 436  * http://www.microsoft.com/msdn/sdk/platforms/doc/sdk/win32/func/src/f30_14.htm
 437  */
 438 INT WINAPI GetDIBits(
 439     HDC hdc,         /* [in]  Handle to device context */
 440     HBITMAP hbitmap, /* [in]  Handle to bitmap */
 441     UINT startscan,  /* [in]  First scan line to set in dest bitmap */
 442     UINT lines,      /* [in]  Number of scan lines to copy */
 443     LPVOID bits,       /* [out] Address of array for bitmap bits */
 444     BITMAPINFO * info, /* [out] Address of structure with bitmap data */
 445     UINT coloruse)   /* [in]  RGB or palette index */
 446 {
 447     DC * dc;
 448     BITMAPOBJ * bmp;
 449     PALETTEENTRY * palEntry;
 450     PALETTEOBJ * palette;
 451     XImage * bmpImage;
 452     int i, x, y;
 453
 454     if (!lines) return 0;
 455     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 456     if (!dc)
 457     {
 458         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 459         if (!dc) return 0;
 460     }
 461     if (!(bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbitmap, BITMAP_MAGIC )))
 462         return 0;
 463     if (!(palette = (PALETTEOBJ*)GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC )))
 464     {
 465         GDI_HEAP_UNLOCK( hbitmap );
 466         return 0;
 467     }
 468
 469     /* Transfer color info (FIXME) */
 470
 471     if (info && (info->bmiHeader.biBitCount <= 8) &&
 472         (bmp->bitmap.bmBitsPixel <= 8))
 473     {
 474         int colors = 1 << info->bmiHeader.biBitCount;
 475         info->bmiHeader.biClrUsed = 0;
 476         palEntry = palette->logpalette.palPalEntry;
 477         for (i = 0; i < colors; i++, palEntry++)
 478         {
 479             if (coloruse == DIB_RGB_COLORS)
 480             {
 481                 info->bmiColors[i].rgbRed      = palEntry->peRed;
 482                 info->bmiColors[i].rgbGreen    = palEntry->peGreen;
 483                 info->bmiColors[i].rgbBlue     = palEntry->peBlue;
 484                 info->bmiColors[i].rgbReserved = 0;
 485             }
 486             else ((WORD *)info->bmiColors)[i] = (WORD)i;
 487         }
 488     }
 489
 490     if (bits)
 491     {
 492         BYTE    *bbits = (BYTE*)bits, *linestart;
 493         int     dstwidth, yend, xend = bmp->bitmap.bmWidth;
 494
 495         TRACE(bitmap, "%u scanlines of (%i,%i) -> (%i,%i) starting from %u\n",
 496               lines, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
 497               (int)info->bmiHeader.biWidth, (int)info->bmiHeader.biHeight,
 498               startscan );
 499
 500         /* adjust number of scanlines to copy */
 501
 502         if( lines > info->bmiHeader.biHeight ) lines = info->bmiHeader.biHeight;
 503         yend = startscan + lines;
 504         if( startscan >= bmp->bitmap.bmHeight )
 505         {
 506             GDI_HEAP_UNLOCK( hbitmap );
 507             GDI_HEAP_UNLOCK( dc->w.hPalette );
 508             return FALSE;
 509         }
 510         if( yend > bmp->bitmap.bmHeight ) yend = bmp->bitmap.bmHeight;
 511
 512         /* adjust scanline width */
 513
 514         if(bmp->bitmap.bmWidth > info->bmiHeader.biWidth)
 515             xend = info->bmiHeader.biWidth;
 516
 517         /* HACK for now */
 518         if(!bmp->DDBitmap)
 519             X11DRV_CreateBitmap(hbitmap);
 520
 521         dstwidth = DIB_GetDIBWidthBytes( info->bmiHeader.biWidth,
 522                                          info->bmiHeader.biBitCount );
 523
 524         EnterCriticalSection( &X11DRV_CritSection );
 525         bmpImage = (XImage *)CALL_LARGE_STACK( X11DRV_BITMAP_GetXImage, bmp );
 526
 527         linestart = bbits;
 528         switch( info->bmiHeader.biBitCount )
 529         {
 530            case 8:
 531                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 532                 {
 533                    for( x = 0; x < xend; x++ )
 534                         *bbits++ = XGetPixel( bmpImage, x, y );
 535                    bbits = (linestart += dstwidth);
 536                 }
 537                 break;
 538            case 1:
 539                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 540                 {
 541                    for( x = 0; x < xend; x++ ) {
 542                         if (!(x&7)) *bbits = 0;
 543                         *bbits |= XGetPixel( bmpImage, x, y)<<(7-(x&7));
 544                         if ((x&7)==7) bbits++;
 545                    }
 546                    bbits = (linestart += dstwidth);
 547                 }
 548                 break;
 549            case 4:
 550                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 551                 {
 552                    for( x = 0; x < xend; x++ ) {
 553                         if (!(x&1)) *bbits = 0;
 554                         *bbits |= XGetPixel( bmpImage, x, y)<<(4*(1-(x&1)));
 555                         if ((x&1)==1) bbits++;
 556                    }
 557                    bbits = (linestart += dstwidth);
 558                 }
 559                 break;
 560            case 15:
 561            case 16:
 562                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 563                 {
 564                    for( x = 0; x < xend; x++ ) {
 565                         unsigned long pixel=XGetPixel( bmpImage, x, y);
 566                         *bbits++ = pixel & 0xff;
 567                         *bbits++ = (pixel >> 8) & 0xff;
 568                    }
 569                    bbits = (linestart += dstwidth);
 570                 }
 571                 break;
 572            case 24:
 573                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 574                 {
 575                    for( x = 0; x < xend; x++ ) {
 576                         unsigned long pixel=XGetPixel( bmpImage, x, y);
 577                         *bbits++ = (pixel >>16) & 0xff;
 578                         *bbits++ = (pixel >> 8) & 0xff;
 579                         *bbits++ =  pixel       & 0xff;
 580                    }
 581                    bbits = (linestart += dstwidth);
 582                 }
 583                 break;
 584            case 32:
 585                 for( y = yend - 1; (int)y >= (int)startscan; y-- )
 586                 {
 587                    for( x = 0; x < xend; x++ ) {
 588                         unsigned long pixel=XGetPixel( bmpImage, x, y);
 589                         *bbits++ = (pixel >>16) & 0xff;
 590                         *bbits++ = (pixel >> 8) & 0xff;
 591                         *bbits++ =  pixel       & 0xff;
 592                    }
 593                    bbits = (linestart += dstwidth);
 594                 }
 595                 break;
 596            default:
 597                 WARN(bitmap,"Unsupported depth %d\n",
 598                    info->bmiHeader.biBitCount);
 599                 break;
 600         }
 601
 602         XDestroyImage( bmpImage );
 603         LeaveCriticalSection( &X11DRV_CritSection );
 604
 605         if(bbits - (BYTE *)bits > info->bmiHeader.biSizeImage)
 606             ERR(bitmap, "Buffer overrun. Please investigate.\n");
 607
 608         info->bmiHeader.biCompression = 0;
 609     }
 610     else if( info->bmiHeader.biSize >= sizeof(BITMAPINFOHEADER) )
 611     {
 612         /* fill in struct members */
 613
 614         info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
 615         info->bmiHeader.biHeight = bmp->bitmap.bmHeight;
 616         info->bmiHeader.biPlanes = 1;
 617         info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
 618         info->bmiHeader.biSizeImage = bmp->bitmap.bmHeight *
 619                              DIB_GetDIBWidthBytes( bmp->bitmap.bmWidth,
 620                                                    bmp->bitmap.bmBitsPixel );
 621         info->bmiHeader.biCompression = 0;
 622     }
 623     TRACE(bitmap, "biSizeImage = %ld, biWidth = %ld, biHeight = %ld\n",
 624           info->bmiHeader.biSizeImage, info->bmiHeader.biWidth,
 625           info->bmiHeader.biHeight);
 626     GDI_HEAP_UNLOCK( hbitmap );
 627     GDI_HEAP_UNLOCK( dc->w.hPalette );
 628     return lines;
 629 }
 630
 631
 632 /***********************************************************************
 633  *           CreateDIBitmap16    (GDI.442)
 634  */
 635 HBITMAP16 WINAPI CreateDIBitmap16( HDC16 hdc, const BITMAPINFOHEADER * header,
 636                             DWORD init, LPCVOID bits, const BITMAPINFO * data,
 637                             UINT16 coloruse )
 638 {
 639     return CreateDIBitmap( hdc, header, init, bits, data, coloruse );
 640 }
 641
 642
 643 /***********************************************************************
 644  *           CreateDIBitmap32    (GDI32.37)
 645  */
 646 HBITMAP WINAPI CreateDIBitmap( HDC hdc, const BITMAPINFOHEADER *header,
 647                             DWORD init, LPCVOID bits, const BITMAPINFO *data,
 648                             UINT coloruse )
 649 {
 650     HBITMAP handle;
 651     BOOL fColor;
 652     DWORD width;
 653     int height;
 654     WORD bpp;
 655     WORD compr;
 656
 657     if (DIB_GetBitmapInfo( header, &width, &height, &bpp, &compr ) == -1) return 0;
 658     if (height < 0) height = -height;
 659
 660     /* Check if we should create a monochrome or color bitmap. */
 661     /* We create a monochrome bitmap only if it has exactly 2  */
 662     /* colors, which are either black or white, nothing else.  */
 663     /* In all other cases, we create a color bitmap.           */
 664
 665     if (bpp != 1) fColor = TRUE;
 666     else if ((coloruse != DIB_RGB_COLORS) ||
 667              (init != CBM_INIT) || !data) fColor = FALSE;
 668     else
 669     {
 670         if (data->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
 671         {
 672             RGBQUAD *rgb = data->bmiColors;
 673             DWORD col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue );
 674             if ((col == RGB(0,0,0)) || (col == RGB(0xff,0xff,0xff)))
 675             {
 676                 rgb++;
 677                 col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue );
 678                 fColor = ((col != RGB(0,0,0)) && (col != RGB(0xff,0xff,0xff)));
 679             }
 680             else fColor = TRUE;
 681         }
 682         else if (data->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
 683         {
 684             RGBTRIPLE *rgb = ((BITMAPCOREINFO *)data)->bmciColors;
 685             DWORD col = RGB( rgb->rgbtRed, rgb->rgbtGreen, rgb->rgbtBlue );
 686             if ((col == RGB(0,0,0)) || (col == RGB(0xff,0xff,0xff)))
 687             {
 688                 rgb++;
 689                 col = RGB( rgb->rgbtRed, rgb->rgbtGreen, rgb->rgbtBlue );
 690                 fColor = ((col != RGB(0,0,0)) && (col != RGB(0xff,0xff,0xff)));
 691             }
 692             else fColor = TRUE;
 693         }
 694         else
 695         {
 696             WARN(bitmap, "(%ld): wrong size for data\n",
 697                      data->bmiHeader.biSize );
 698             return 0;
 699         }
 700     }
 701
 702     /* Now create the bitmap */
 703
 704     handle = fColor ? CreateBitmap( width, height, 1, MONITOR_GetDepth(&MONITOR_PrimaryMonitor), NULL ) :
 705                       CreateBitmap( width, height, 1, 1, NULL );
 706     if (!handle) return 0;
 707
 708     if (init == CBM_INIT)
 709         SetDIBits( hdc, handle, 0, height, bits, data, coloruse );
 710     return handle;
 711 }
 712
 713
 714 /***********************************************************************
 715  *           DIB_DoProtectDIBSection
 716  */
 717 static void DIB_DoProtectDIBSection( BITMAPOBJ *bmp, DWORD new_prot )
 718 {
 719     DIBSECTION *dib = &bmp->dib->dibSection;
 720     INT effHeight = dib->dsBm.bmHeight >= 0? dib->dsBm.bmHeight
 721                                              : -dib->dsBm.bmHeight;
 722     INT totalSize = dib->dsBmih.biSizeImage? dib->dsBmih.biSizeImage
 723                          : dib->dsBm.bmWidthBytes * effHeight;
 724     DWORD old_prot;
 725
 726     VirtualProtect(dib->dsBm.bmBits, totalSize, new_prot, &old_prot);
 727     TRACE(bitmap, "Changed protection from %ld to %ld\n",
 728                   old_prot, new_prot);
 729 }
 730
 731 /***********************************************************************
 732  *           DIB_DoUpdateDIBSection
 733  */
 734 static void DIB_DoUpdateDIBSection( BITMAPOBJ *bmp, BOOL toDIB )
 735 {
 736     DIBSECTIONOBJ *dib = bmp->dib;
 737     DIB_SETIMAGEBITS_DESCR descr;
 738
 739     if (DIB_GetBitmapInfo( &dib->dibSection.dsBmih, &descr.infoWidth, &descr.lines,
 740                            &descr.infoBpp, &descr.compression ) == -1)
 741         return;
 742
 743     descr.dc        = NULL;
 744     descr.image     = dib->image;
 745     descr.colorMap  = dib->colorMap;
 746     descr.nColorMap = dib->nColorMap;
 747     descr.bits      = dib->dibSection.dsBm.bmBits;
 748     descr.depth     = bmp->bitmap.bmBitsPixel;
 749
 750     /* Hack for now */
 751     descr.drawable  = ((X11DRV_PHYSBITMAP *)bmp->DDBitmap->physBitmap)->pixmap;
 752     descr.gc        = BITMAP_GC(bmp);
 753     descr.xSrc      = 0;
 754     descr.ySrc      = 0;
 755     descr.xDest     = 0;
 756     descr.yDest     = 0;
 757     descr.width     = bmp->bitmap.bmWidth;
 758     descr.height    = bmp->bitmap.bmHeight;
 759
 760     if (toDIB)
 761     {
 762         TRACE(bitmap, "Copying from Pixmap to DIB bits\n");
 763         EnterCriticalSection( &X11DRV_CritSection );
 764         CALL_LARGE_STACK( X11DRV_DIB_GetImageBits, &descr );
 765         LeaveCriticalSection( &X11DRV_CritSection );
 766     }
 767     else
 768     {
 769         TRACE(bitmap, "Copying from DIB bits to Pixmap\n");
 770         EnterCriticalSection( &X11DRV_CritSection );
 771         CALL_LARGE_STACK( X11DRV_DIB_SetImageBits, &descr );
 772         LeaveCriticalSection( &X11DRV_CritSection );
 773     }
 774 }
 775
 776 /***********************************************************************
 777  *           DIB_FaultHandler
 778  */
 779 static BOOL DIB_FaultHandler( LPVOID res, LPCVOID addr )
 780 {
 781     BOOL handled = FALSE;
 782     BITMAPOBJ *bmp;
 783
 784     bmp = (BITMAPOBJ *)GDI_GetObjPtr( (HBITMAP)res, BITMAP_MAGIC );
 785     if (!bmp) return FALSE;
 786
 787     if (bmp->dib)
 788         switch (bmp->dib->status)
 789         {
 790         case DIB_GdiMod:
 791             TRACE( bitmap, "called in status DIB_GdiMod\n" );
 792             DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
 793             DIB_DoUpdateDIBSection( bmp, TRUE );
 794             DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
 795             bmp->dib->status = DIB_InSync;
 796             handled = TRUE;
 797             break;
 798
 799         case DIB_InSync:
 800             TRACE( bitmap, "called in status DIB_InSync\n" );
 801             DIB_DoProtectDIBSection( bmp, PAGE_READWRITE );
 802             bmp->dib->status = DIB_AppMod;
 803             handled = TRUE;
 804             break;
 805
 806         case DIB_AppMod:
 807             FIXME( bitmap, "called in status DIB_AppMod: "
 808                            "this can't happen!\n" );
 809             break;
 810
 811         case DIB_NoHandler:
 812             FIXME( bitmap, "called in status DIB_NoHandler: "
 813                            "this can't happen!\n" );
 814             break;
 815         }
 816
 817     GDI_HEAP_UNLOCK( (HBITMAP)res );
 818     return handled;
 819 }
 820
 821 /***********************************************************************
 822  *           DIB_UpdateDIBSection
 823  */
 824 void DIB_UpdateDIBSection( DC *dc, BOOL toDIB )
 825 {
 826     BITMAPOBJ *bmp;
 827
 828     /* Ensure this is a Compatible DC that has a DIB section selected */
 829
 830     if (!dc) return;
 831     if (!(dc->w.flags & DC_MEMORY)) return;
 832
 833     bmp = (BITMAPOBJ *)GDI_GetObjPtr( dc->w.hBitmap, BITMAP_MAGIC );
 834     if (!bmp) return;
 835
 836     if (!bmp->dib)
 837     {
 838         GDI_HEAP_UNLOCK(dc->w.hBitmap);
 839         return;
 840     }
 841
 842
 843     if (!toDIB)
 844     {
 845         /* Prepare for access to the DIB by GDI functions */
 846
 847         switch (bmp->dib->status)
 848         {
 849         default:
 850         case DIB_NoHandler:
 851             DIB_DoUpdateDIBSection( bmp, FALSE );
 852             break;
 853
 854         case DIB_GdiMod:
 855             TRACE( bitmap, "fromDIB called in status DIB_GdiMod\n" );
 856             /* nothing to do */
 857             break;
 858
 859         case DIB_InSync:
 860             TRACE( bitmap, "fromDIB called in status DIB_InSync\n" );
 861             /* nothing to do */
 862             break;
 863
 864         case DIB_AppMod:
 865             TRACE( bitmap, "fromDIB called in status DIB_AppMod\n" );
 866             DIB_DoUpdateDIBSection( bmp, FALSE );
 867             DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
 868             bmp->dib->status = DIB_InSync;
 869             break;
 870         }
 871     }
 872     else
 873     {
 874         /* Acknowledge write access to the DIB by GDI functions */
 875
 876         switch (bmp->dib->status)
 877         {
 878         default:
 879         case DIB_NoHandler:
 880             DIB_DoUpdateDIBSection( bmp, TRUE );
 881             break;
 882
 883         case DIB_GdiMod:
 884             TRACE( bitmap, "  toDIB called in status DIB_GdiMod\n" );
 885             /* nothing to do */
 886             break;
 887
 888         case DIB_InSync:
 889             TRACE( bitmap, "  toDIB called in status DIB_InSync\n" );
 890             DIB_DoProtectDIBSection( bmp, PAGE_NOACCESS );
 891             bmp->dib->status = DIB_GdiMod;
 892             break;
 893
 894         case DIB_AppMod:
 895             FIXME( bitmap, "  toDIB called in status DIB_AppMod: "
 896                            "this can't happen!\n" );
 897             break;
 898         }
 899     }
 900
 901
 902     GDI_HEAP_UNLOCK(dc->w.hBitmap);
 903 }
 904
 905 /***********************************************************************
 906  *           CreateDIBSection16    (GDI.489)
 907  */
 908 HBITMAP16 WINAPI CreateDIBSection16 (HDC16 hdc, BITMAPINFO *bmi, UINT16 usage,
 909                                      SEGPTR *bits, HANDLE section,
 910                                      DWORD offset)
 911 {
 912     HBITMAP res = CreateDIBSection(hdc, bmi, usage, NULL, section,
 913                                        offset);
 914
 915     if ( res )
 916     {
 917         BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr(res, BITMAP_MAGIC);
 918         if ( bmp && bmp->dib )
 919         {
 920             DIBSECTION *dib = &bmp->dib->dibSection;
 921             INT height = dib->dsBm.bmHeight >= 0 ?
 922                 dib->dsBm.bmHeight : -dib->dsBm.bmHeight;
 923             INT size = dib->dsBmih.biSizeImage ?
 924                 dib->dsBmih.biSizeImage : dib->dsBm.bmWidthBytes * height;
 925             if ( dib->dsBm.bmBits )
 926             {
 927                 bmp->dib->selector =
 928                     SELECTOR_AllocBlock( dib->dsBm.bmBits, size,
 929                                          SEGMENT_DATA, FALSE, FALSE );
 930             }
 931             printf("ptr = %p, size =%d, selector = %04x, segptr = %ld\n",
 932                    dib->dsBm.bmBits, size, bmp->dib->selector,
 933                    PTR_SEG_OFF_TO_SEGPTR(bmp->dib->selector, 0));
 934 }
 935         GDI_HEAP_UNLOCK( res );
 936
 937         if ( bits )
 938             *bits = PTR_SEG_OFF_TO_SEGPTR( bmp->dib->selector, 0 );
 939     }
 940
 941     return res;
 942 }
 943
 944 /***********************************************************************
 945  *           CreateDIBSection32    (GDI32.36)
 946  */
 947 HBITMAP WINAPI CreateDIBSection (HDC hdc, BITMAPINFO *bmi, UINT usage,
 948                                      LPVOID *bits,HANDLE section,
 949                                      DWORD offset)
 950 {
 951     HBITMAP res = 0;
 952     BITMAPOBJ *bmp = NULL;
 953     DIBSECTIONOBJ *dib = NULL;
 954     int *colorMap = NULL;
 955     int nColorMap;
 956
 957     /* Fill BITMAP32 structure with DIB data */
 958     BITMAPINFOHEADER *bi = &bmi->bmiHeader;
 959     INT effHeight, totalSize;
 960     BITMAP bm;
 961
 962     TRACE(bitmap, "format (%ld,%ld), planes %d, bpp %d, size %ld, colors %ld (%s)\n",
 963           bi->biWidth, bi->biHeight, bi->biPlanes, bi->biBitCount,
 964           bi->biSizeImage, bi->biClrUsed, usage == DIB_PAL_COLORS? "PAL" : "RGB");
 965
 966     bm.bmType = 0;
 967     bm.bmWidth = bi->biWidth;
 968     bm.bmHeight = bi->biHeight;
 969     bm.bmWidthBytes = DIB_GetDIBWidthBytes(bm.bmWidth, bi->biBitCount);
 970     bm.bmPlanes = bi->biPlanes;
 971     bm.bmBitsPixel = bi->biBitCount;
 972     bm.bmBits = NULL;
 973
 974     /* Get storage location for DIB bits */
 975     effHeight = bm.bmHeight >= 0 ? bm.bmHeight : -bm.bmHeight;
 976     totalSize = bi->biSizeImage? bi->biSizeImage : bm.bmWidthBytes * effHeight;
 977
 978     if (section)
 979         bm.bmBits = MapViewOfFile(section, FILE_MAP_ALL_ACCESS,
 980                                   0L, offset, totalSize);
 981     else
 982         bm.bmBits = VirtualAlloc(NULL, totalSize,
 983                                  MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
 984
 985     /* Create Color Map */
 986     if (bm.bmBits && bm.bmBitsPixel <= 8)
 987     {
 988         DC *dc = hdc? (DC *)GDI_GetObjPtr(hdc, DC_MAGIC) : NULL;
 989         if (hdc && !dc) dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 990
 991         if (!hdc || dc)
 992             colorMap = X11DRV_DIB_BuildColorMap( dc, usage, bm.bmBitsPixel,
 993                                                  bmi, &nColorMap );
 994         GDI_HEAP_UNLOCK(hdc);
 995     }
 996
 997     /* Allocate Memory for DIB and fill structure */
 998     if (bm.bmBits)
 999         dib = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DIBSECTIONOBJ));
1000     if (dib)
1001     {
1002         dib->dibSection.dsBm = bm;
1003         dib->dibSection.dsBmih = *bi;
1004         /* FIXME: dib->dibSection.dsBitfields ??? */
1005         dib->dibSection.dshSection = section;
1006         dib->dibSection.dsOffset = offset;
1007
1008         dib->status    = DIB_NoHandler;
1009         dib->selector  = 0;
1010
1011         dib->nColorMap = nColorMap;
1012         dib->colorMap  = colorMap;
1013     }
1014
1015     /* Create Device Dependent Bitmap and add DIB pointer */
1016     if (dib)
1017     {
1018        res = CreateDIBitmap(hdc, bi, 0, NULL, bmi, usage);
1019        if (res)
1020        {
1021            bmp = (BITMAPOBJ *) GDI_GetObjPtr(res, BITMAP_MAGIC);
1022            if (bmp)
1023            {
1024                bmp->dib = dib;
1025                /* HACK for now */
1026                if(!bmp->DDBitmap)
1027                    X11DRV_CreateBitmap(res);
1028            }
1029        }
1030     }
1031
1032     /* Create XImage */
1033     if (dib && bmp)
1034         XCREATEIMAGE( dib->image, bm.bmWidth, effHeight, bmp->bitmap.bmBitsPixel );
1035
1036     /* Clean up in case of errors */
1037     if (!res || !bmp || !dib || !bm.bmBits || (bm.bmBitsPixel <= 8 && !colorMap))
1038     {
1039         TRACE(bitmap, "got an error res=%08x, bmp=%p, dib=%p, bm.bmBits=%p\n",
1040               res, bmp, dib, bm.bmBits);
1041         if (bm.bmBits)
1042         {
1043             if (section)
1044                 UnmapViewOfFile(bm.bmBits), bm.bmBits = NULL;
1045             else
1046                 VirtualFree(bm.bmBits, MEM_RELEASE, 0L), bm.bmBits = NULL;
1047         }
1048
1049         if (dib && dib->image) { XDestroyImage(dib->image); dib->image = NULL; }
1050         if (colorMap) { HeapFree(GetProcessHeap(), 0, colorMap); colorMap = NULL; }
1051         if (dib) { HeapFree(GetProcessHeap(), 0, dib); dib = NULL; }
1052         if (res) { DeleteObject(res); res = 0; }
1053     }
1054
1055     /* Install fault handler, if possible */
1056     if (bm.bmBits)
1057     {
1058         if (VIRTUAL_SetFaultHandler(bm.bmBits, DIB_FaultHandler, (LPVOID)res))
1059         {
1060             DIB_DoProtectDIBSection( bmp, PAGE_READONLY );
1061             if (dib) dib->status = DIB_InSync;
1062         }
1063     }
1064
1065     /* Return BITMAP handle and storage location */
1066     if (res) GDI_HEAP_UNLOCK(res);
1067     if (bm.bmBits && bits) *bits = bm.bmBits;
1068     return res;
1069 }
1070
1071 /***********************************************************************
1072  *           DIB_DeleteDIBSection
1073  */
1074 void DIB_DeleteDIBSection( BITMAPOBJ *bmp )
1075 {
1076     if (bmp && bmp->dib)
1077     {
1078         DIBSECTIONOBJ *dib = bmp->dib;
1079
1080         if (dib->dibSection.dsBm.bmBits)
1081         {
1082             if (dib->dibSection.dshSection)
1083                 UnmapViewOfFile(dib->dibSection.dsBm.bmBits);
1084             else
1085                 VirtualFree(dib->dibSection.dsBm.bmBits, MEM_RELEASE, 0L);
1086         }
1087
1088         if (dib->image)
1089             XDestroyImage( dib->image );
1090
1091         if (dib->colorMap)
1092             HeapFree(GetProcessHeap(), 0, dib->colorMap);
1093
1094         if (dib->selector)
1095         {
1096             WORD count = (GET_SEL_LIMIT( dib->selector ) >> 16) + 1;
1097             SELECTOR_FreeBlock( dib->selector, count );
1098         }
1099
1100         HeapFree(GetProcessHeap(), 0, dib);
1101         bmp->dib = NULL;
1102     }
1103 }
1104
1105 /***********************************************************************
1106  *           DIB_FixColorsToLoadflags
1107  *
1108  * Change color table entries when LR_LOADTRANSPARENT or LR_LOADMAP3DCOLORS
1109  * are in loadflags
1110  */
1111 void DIB_FixColorsToLoadflags(BITMAPINFO * bmi, UINT loadflags, BYTE pix)
1112 {
1113   int colors;
1114   COLORREF c_W, c_S, c_F, c_L, c_C;
1115   int incr,i;
1116   RGBQUAD *ptr;
1117
1118   if (bmi->bmiHeader.biBitCount > 8) return;
1119   if (bmi->bmiHeader.biSize == sizeof(BITMAPINFOHEADER)) incr = 4;
1120   else if (bmi->bmiHeader.biSize == sizeof(BITMAPCOREHEADER)) incr = 3;
1121   else {
1122     WARN(bitmap, "Wrong bitmap header size!\n");
1123     return;
1124   }
1125   colors = bmi->bmiHeader.biClrUsed;
1126   if (!colors && (bmi->bmiHeader.biBitCount <= 8))
1127     colors = 1 << bmi->bmiHeader.biBitCount;
1128   c_W = GetSysColor(COLOR_WINDOW);
1129   c_S = GetSysColor(COLOR_3DSHADOW);
1130   c_F = GetSysColor(COLOR_3DFACE);
1131   c_L = GetSysColor(COLOR_3DLIGHT);
1132   if (loadflags & LR_LOADTRANSPARENT) {
1133     switch (bmi->bmiHeader.biBitCount) {
1134       case 1: pix = pix >> 7; break;
1135       case 4: pix = pix >> 4; break;
1136       case 8: break;
1137       default:
1138         WARN(bitmap, "(%d): Unsupported depth\n", bmi->bmiHeader.biBitCount);
1139         return;
1140     }
1141     if (pix >= colors) {
1142       WARN(bitmap, "pixel has color index greater than biClrUsed!\n");
1143       return;
1144     }
1145     if (loadflags & LR_LOADMAP3DCOLORS) c_W = c_F;
1146     ptr = (RGBQUAD*)((char*)bmi->bmiColors+pix*incr);
1147     ptr->rgbBlue = GetBValue(c_W);
1148     ptr->rgbGreen = GetGValue(c_W);
1149     ptr->rgbRed = GetRValue(c_W);
1150   }
1151   if (loadflags & LR_LOADMAP3DCOLORS)
1152     for (i=0; i<colors; i++) {
1153       ptr = (RGBQUAD*)((char*)bmi->bmiColors+i*incr);
1154       c_C = RGB(ptr->rgbRed, ptr->rgbGreen, ptr->rgbBlue);
1155       if (c_C == RGB(128, 128, 128)) {
1156         ptr->rgbRed = GetRValue(c_S);
1157         ptr->rgbGreen = GetGValue(c_S);
1158         ptr->rgbBlue = GetBValue(c_S);
1159       } else if (c_C == RGB(192, 192, 192)) {
1160         ptr->rgbRed = GetRValue(c_F);
1161         ptr->rgbGreen = GetGValue(c_F);
1162         ptr->rgbBlue = GetBValue(c_F);
1163       } else if (c_C == RGB(223, 223, 223)) {
1164         ptr->rgbRed = GetRValue(c_L);
1165         ptr->rgbGreen = GetGValue(c_L);
1166         ptr->rgbBlue = GetBValue(c_L);
1167       }
1168     }
1169 }