objects/palette.c

   1 /*
   2  * GDI palette objects
   3  *
   4  * Copyright 1993,1994 Alexandre Julliard
   5  * Copyright 1996 Alex Korobka
   6  *
   7  * PALETTEOBJ is documented in the Dr. Dobbs Journal May 1993.
   8  * Information in the "Undocumented Windows" is incorrect.
   9  */
  10
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <X11/Xlib.h>
  14
  15 #include "gdi.h"
  16 #include "color.h"
  17 #include "palette.h"
  18 #include "xmalloc.h"
  19 #include "stddebug.h"
  20 /* #define DEBUG_PALETTE */
  21 #include "debug.h"
  22
  23  /* lookup pixel among static entries of the system palette */
  24 extern int COLOR_LookupSystemPixel(COLORREF);
  25
  26 static UINT32 SystemPaletteUse = SYSPAL_STATIC;  /* currently not considered */
  27
  28 static HPALETTE16 hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */
  29 static HPALETTE16 hLastRealizedPalette = 0; /* UnrealizeObject() needs it */
  30
  31
  32 /***********************************************************************
  33  *           PALETTE_Init
  34  *
  35  * Create the system palette.
  36  */
  37 HPALETTE16 PALETTE_Init(void)
  38 {
  39     extern const PALETTEENTRY* COLOR_GetSystemPaletteTemplate(void);
  40
  41     int                 i;
  42     HPALETTE16          hpalette;
  43     LOGPALETTE *        palPtr;
  44     PALETTEOBJ*         palObj;
  45     const PALETTEENTRY* __sysPalTemplate = COLOR_GetSystemPaletteTemplate();
  46
  47     /* create default palette (20 system colors) */
  48
  49     palPtr = xmalloc( sizeof(LOGPALETTE) + (NB_RESERVED_COLORS-1)*sizeof(PALETTEENTRY) );
  50     if (!palPtr) return FALSE;
  51
  52     palPtr->palVersion = 0x300;
  53     palPtr->palNumEntries = NB_RESERVED_COLORS;
  54     for( i = 0; i < NB_RESERVED_COLORS; i ++ )
  55     {
  56         palPtr->palPalEntry[i].peRed = __sysPalTemplate[i].peRed;
  57         palPtr->palPalEntry[i].peGreen = __sysPalTemplate[i].peGreen;
  58         palPtr->palPalEntry[i].peBlue = __sysPalTemplate[i].peBlue;
  59         palPtr->palPalEntry[i].peFlags = 0;
  60     }
  61     hpalette = CreatePalette16( palPtr );
  62
  63     palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
  64
  65     palObj->mapping = xmalloc( sizeof(int) * 20 );
  66
  67     GDI_HEAP_UNLOCK( hpalette );
  68
  69     free( palPtr );
  70     return hpalette;
  71 }
  72
  73 /***********************************************************************
  74  *           PALETTE_ValidateFlags
  75  */
  76 void PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, int size)
  77 {
  78     int i = 0;
  79     for( ; i<size ; i++ )
  80         lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
  81 }
  82
  83
  84 /***********************************************************************
  85  *           CreatePalette16    (GDI.360)
  86  */
  87 HPALETTE16 WINAPI CreatePalette16( const LOGPALETTE* palette )
  88 {
  89     return CreatePalette32( palette );
  90 }
  91
  92
  93 /***********************************************************************
  94  *           CreatePalette32    (GDI32.53)
  95  */
  96 HPALETTE32 WINAPI CreatePalette32( const LOGPALETTE* palette )
  97 {
  98     PALETTEOBJ * palettePtr;
  99     HPALETTE32 hpalette;
 100     int size = sizeof(LOGPALETTE) + (palette->palNumEntries - 1) * sizeof(PALETTEENTRY);
 101
 102     dprintf_palette(stddeb,"CreatePalette: %i entries, ",
 103                     palette->palNumEntries);
 104
 105     hpalette = GDI_AllocObject( size + sizeof(int*) +sizeof(GDIOBJHDR) , PALETTE_MAGIC );
 106     if (!hpalette) return 0;
 107
 108     palettePtr = (PALETTEOBJ *) GDI_HEAP_LOCK( hpalette );
 109     memcpy( &palettePtr->logpalette, palette, size );
 110     PALETTE_ValidateFlags(palettePtr->logpalette.palPalEntry,
 111                           palettePtr->logpalette.palNumEntries);
 112     palettePtr->mapping = NULL;
 113     GDI_HEAP_UNLOCK( hpalette );
 114
 115     dprintf_palette(stddeb,"returning %04x\n", hpalette);
 116     return hpalette;
 117 }
 118
 119
 120 /***********************************************************************
 121  *           GetPaletteEntries16    (GDI.363)
 122  */
 123 UINT16 WINAPI GetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
 124                                    UINT16 count, LPPALETTEENTRY entries )
 125 {
 126     return GetPaletteEntries32( hpalette, start, count, entries );
 127 }
 128
 129
 130 /***********************************************************************
 131  *           GetPaletteEntries32    (GDI32.209)
 132  */
 133 UINT32 WINAPI GetPaletteEntries32( HPALETTE32 hpalette, UINT32 start,
 134                                    UINT32 count, LPPALETTEENTRY entries )
 135 {
 136     PALETTEOBJ * palPtr;
 137     INT32 numEntries;
 138
 139     dprintf_palette( stddeb,"GetPaletteEntries: hpal = %04x, %i entries\n",
 140                      hpalette, count );
 141
 142     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 143     if (!palPtr) return 0;
 144
 145     numEntries = palPtr->logpalette.palNumEntries;
 146     if (start >= numEntries)
 147     {
 148       GDI_HEAP_UNLOCK( hpalette );
 149       return 0;
 150     }
 151     if (start+count > numEntries) count = numEntries - start;
 152     memcpy( entries, &palPtr->logpalette.palPalEntry[start],
 153             count * sizeof(PALETTEENTRY) );
 154     for( numEntries = 0; numEntries < count ; numEntries++ )
 155          if (entries[numEntries].peFlags & 0xF0)
 156              entries[numEntries].peFlags = 0;
 157     GDI_HEAP_UNLOCK( hpalette );
 158     return count;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           SetPaletteEntries16    (GDI.364)
 164  */
 165 UINT16 WINAPI SetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
 166                                    UINT16 count, LPPALETTEENTRY entries )
 167 {
 168     return SetPaletteEntries32( hpalette, start, count, entries );
 169 }
 170
 171
 172 /***********************************************************************
 173  *           SetPaletteEntries32    (GDI32.326)
 174  */
 175 UINT32 WINAPI SetPaletteEntries32( HPALETTE32 hpalette, UINT32 start,
 176                                    UINT32 count, LPPALETTEENTRY entries )
 177 {
 178     PALETTEOBJ * palPtr;
 179     INT32 numEntries;
 180
 181     dprintf_palette( stddeb,"SetPaletteEntries: hpal = %04x, %i entries\n",
 182                      hpalette, count );
 183
 184     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 185     if (!palPtr) return 0;
 186
 187     numEntries = palPtr->logpalette.palNumEntries;
 188     if (start >= numEntries)
 189     {
 190       GDI_HEAP_UNLOCK( hpalette );
 191       return 0;
 192     }
 193     if (start+count > numEntries) count = numEntries - start;
 194     memcpy( &palPtr->logpalette.palPalEntry[start], entries,
 195             count * sizeof(PALETTEENTRY) );
 196     PALETTE_ValidateFlags(palPtr->logpalette.palPalEntry,
 197                           palPtr->logpalette.palNumEntries);
 198     free(palPtr->mapping);
 199     palPtr->mapping = NULL;
 200     GDI_HEAP_UNLOCK( hpalette );
 201     return count;
 202 }
 203
 204
 205 /***********************************************************************
 206  *           ResizePalette16   (GDI.368)
 207  */
 208 BOOL16 WINAPI ResizePalette16( HPALETTE16 hPal, UINT16 cEntries )
 209 {
 210     return ResizePalette32( hPal, cEntries );
 211 }
 212
 213
 214 /***********************************************************************
 215  *           ResizePalette32   (GDI32.289)
 216  */
 217 BOOL32 WINAPI ResizePalette32( HPALETTE32 hPal, UINT32 cEntries )
 218 {
 219     PALETTEOBJ * palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 220     UINT32       cPrevEnt, prevVer;
 221     int          prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
 222     int*         mapping = NULL;
 223
 224     dprintf_palette(stddeb,"ResizePalette: hpal = %04x, prev = %i, new = %i\n",
 225                     hPal, palPtr ? palPtr->logpalette.palNumEntries : -1,
 226                     cEntries );
 227     if( !palPtr ) return FALSE;
 228     cPrevEnt = palPtr->logpalette.palNumEntries;
 229     prevVer = palPtr->logpalette.palVersion;
 230     prevsize = sizeof(LOGPALETTE) + (cPrevEnt - 1) * sizeof(PALETTEENTRY) +
 231                                         sizeof(int*) + sizeof(GDIOBJHDR);
 232     size += sizeof(int*) + sizeof(GDIOBJHDR);
 233     mapping = palPtr->mapping;
 234
 235     GDI_HEAP_UNLOCK( hPal );
 236
 237     hPal = GDI_HEAP_REALLOC( hPal, size );
 238     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 239     if( !palPtr ) return FALSE;
 240
 241     if( mapping )
 242         palPtr->mapping = (int*) xrealloc( mapping, cEntries * sizeof(int) );
 243     if( cEntries > cPrevEnt )
 244     {
 245         if( mapping )
 246             memset(palPtr->mapping + cPrevEnt, 0, (cEntries - cPrevEnt)*sizeof(int));
 247         memset( (BYTE*)palPtr + prevsize, 0, size - prevsize );
 248         PALETTE_ValidateFlags((PALETTEENTRY*)((BYTE*)palPtr + prevsize),
 249                                                      cEntries - cPrevEnt );
 250     }
 251     palPtr->logpalette.palNumEntries = cEntries;
 252     palPtr->logpalette.palVersion = prevVer;
 253     GDI_HEAP_UNLOCK( hPal );
 254     return TRUE;
 255 }
 256
 257
 258 /***********************************************************************
 259  *           AnimatePalette16   (GDI.367)
 260  */
 261 void WINAPI AnimatePalette16( HPALETTE16 hPal, UINT16 StartIndex,
 262                               UINT16 NumEntries, LPPALETTEENTRY PaletteColors)
 263 {
 264     AnimatePalette32( hPal, StartIndex, NumEntries, PaletteColors );
 265 }
 266
 267
 268 /***********************************************************************
 269  *           AnimatePalette32   (GDI32.6)
 270  *
 271  * FIXME: should use existing mapping when animating a primary palette
 272  */
 273 BOOL32 WINAPI AnimatePalette32( HPALETTE32 hPal, UINT32 StartIndex,
 274                                UINT32 NumEntries, LPPALETTEENTRY PaletteColors)
 275 {
 276     dprintf_palette(stddeb, "AnimatePalette: %04x (%i - %i)", hPal,
 277                     StartIndex, StartIndex + NumEntries );
 278
 279     if( hPal != STOCK_DEFAULT_PALETTE )
 280     {
 281         PALETTEOBJ* palPtr = (PALETTEOBJ *)GDI_GetObjPtr(hPal, PALETTE_MAGIC);
 282
 283         if( (StartIndex + NumEntries) < palPtr->logpalette.palNumEntries )
 284         {
 285             UINT32 u;
 286             for( u = 0; u < NumEntries; u++ )
 287                 palPtr->logpalette.palPalEntry[u + StartIndex] = PaletteColors[u];
 288             COLOR_SetMapping(palPtr, StartIndex, NumEntries,
 289                              hPal != hPrimaryPalette );
 290             GDI_HEAP_UNLOCK( hPal );
 291             return TRUE;
 292         }
 293     }
 294     return FALSE;
 295 }
 296
 297
 298 /***********************************************************************
 299  *           SetSystemPaletteUse16   (GDI.373)
 300  */
 301 UINT16 WINAPI SetSystemPaletteUse16( HDC16 hdc, UINT16 use )
 302 {
 303     return SetSystemPaletteUse32( hdc, use );
 304 }
 305
 306
 307 /***********************************************************************
 308  *           SetSystemPaletteUse32   (GDI32.335)
 309  */
 310 UINT32 WINAPI SetSystemPaletteUse32( HDC32 hdc, UINT32 use )
 311 {
 312     UINT32 old = SystemPaletteUse;
 313     fprintf( stdnimp,"SetSystemPaletteUse(%04x,%04x) // empty stub !!!\n",
 314              hdc, use );
 315     SystemPaletteUse = use;
 316     return old;
 317 }
 318
 319
 320 /***********************************************************************
 321  *           GetSystemPaletteUse16   (GDI.374)
 322  */
 323 UINT16 WINAPI GetSystemPaletteUse16( HDC16 hdc )
 324 {
 325     return SystemPaletteUse;
 326 }
 327
 328
 329 /***********************************************************************
 330  *           GetSystemPaletteUse32   (GDI32.223)
 331  */
 332 UINT32 WINAPI GetSystemPaletteUse32( HDC32 hdc )
 333 {
 334     return SystemPaletteUse;
 335 }
 336
 337
 338 /***********************************************************************
 339  *           GetSystemPaletteEntries16   (GDI.375)
 340  */
 341 UINT16 WINAPI GetSystemPaletteEntries16( HDC16 hdc, UINT16 start, UINT16 count,
 342                                          LPPALETTEENTRY entries )
 343 {
 344     return GetSystemPaletteEntries32( hdc, start, count, entries );
 345 }
 346
 347
 348 /***********************************************************************
 349  *           GetSystemPaletteEntries32   (GDI32.222)
 350  */
 351 UINT32 WINAPI GetSystemPaletteEntries32( HDC32 hdc, UINT32 start, UINT32 count,
 352                                          LPPALETTEENTRY entries )
 353 {
 354     UINT32 i;
 355     DC *dc;
 356
 357     dprintf_palette(stddeb,"GetSystemPaletteEntries: hdc = %04x, cound = %i", hdc, count );
 358
 359     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
 360     if (start >= dc->w.devCaps->sizePalette)
 361       {
 362         GDI_HEAP_UNLOCK( hdc );
 363         return 0;
 364       }
 365     if (start+count >= dc->w.devCaps->sizePalette)
 366         count = dc->w.devCaps->sizePalette - start;
 367     for (i = 0; i < count; i++)
 368     {
 369         *(COLORREF*)(entries + i) = COLOR_GetSystemPaletteEntry( start + i );
 370
 371         dprintf_palette( stddeb,"\tidx(%02x) -> RGB(%08lx)\n",
 372                          start + i, *(COLORREF*)(entries + i) );
 373     }
 374     GDI_HEAP_UNLOCK( hdc );
 375     return count;
 376 }
 377
 378
 379 /***********************************************************************
 380  *           GetNearestPaletteIndex16   (GDI.370)
 381  */
 382 UINT16 WINAPI GetNearestPaletteIndex16( HPALETTE16 hpalette, COLORREF color )
 383 {
 384     return GetNearestPaletteIndex32( hpalette, color );
 385 }
 386
 387
 388 /***********************************************************************
 389  *           GetNearestPaletteIndex32   (GDI32.203)
 390  */
 391 UINT32 WINAPI GetNearestPaletteIndex32( HPALETTE32 hpalette, COLORREF color )
 392 {
 393     PALETTEOBJ* palObj = (PALETTEOBJ*)GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 394     UINT32 index  = 0;
 395
 396     if( palObj )
 397         index = COLOR_PaletteLookupPixel( palObj->logpalette.palPalEntry,
 398                                           palObj->logpalette.palNumEntries,
 399                                           NULL, color, FALSE );
 400
 401     dprintf_palette(stddeb,"GetNearestPaletteIndex(%04x,%06lx): returning %d\n",
 402                     hpalette, color, index );
 403     GDI_HEAP_UNLOCK( hpalette );
 404     return index;
 405 }
 406
 407
 408 /***********************************************************************
 409  *           GetNearestColor16   (GDI.154)
 410  */
 411 COLORREF WINAPI GetNearestColor16( HDC16 hdc, COLORREF color )
 412 {
 413     return GetNearestColor32( hdc, color );
 414 }
 415
 416
 417 /***********************************************************************
 418  *           GetNearestColor32   (GDI32.202)
 419  */
 420 COLORREF WINAPI GetNearestColor32( HDC32 hdc, COLORREF color )
 421 {
 422     COLORREF     nearest = 0xFADECAFE;
 423     DC          *dc;
 424     PALETTEOBJ  *palObj;
 425
 426     if ( (dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC )) )
 427     {
 428       palObj = (PALETTEOBJ*)
 429                 GDI_GetObjPtr( (dc->w.hPalette)? dc->w.hPalette
 430                                                : STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
 431
 432       nearest = COLOR_LookupNearestColor( palObj->logpalette.palPalEntry,
 433                                           palObj->logpalette.palNumEntries, color );
 434       GDI_HEAP_UNLOCK( dc->w.hPalette );
 435     }
 436
 437     dprintf_palette(stddeb,"GetNearestColor(%06lx): returning %06lx\n",
 438                     color, nearest );
 439     GDI_HEAP_UNLOCK( hdc );
 440     return nearest;
 441 }
 442
 443
 444 /***********************************************************************
 445  *           PALETTE_GetObject
 446  */
 447 int PALETTE_GetObject( PALETTEOBJ * palette, int count, LPSTR buffer )
 448 {
 449     if (count > sizeof(WORD)) count = sizeof(WORD);
 450     memcpy( buffer, &palette->logpalette.palNumEntries, count );
 451     return count;
 452 }
 453
 454
 455 /***********************************************************************
 456  *           PALETTE_UnrealizeObject
 457  */
 458 BOOL32 PALETTE_UnrealizeObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
 459 {
 460     if (palette->mapping)
 461     {
 462         free( palette->mapping );
 463         palette->mapping = NULL;
 464     }
 465     if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
 466     return TRUE;
 467 }
 468
 469
 470 /***********************************************************************
 471  *           PALETTE_DeleteObject
 472  */
 473 BOOL32 PALETTE_DeleteObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
 474 {
 475     free( palette->mapping );
 476     if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
 477     return GDI_FreeObject( hpalette );
 478 }
 479
 480
 481 /***********************************************************************
 482  *           GDISelectPalette    (GDI.361)
 483  */
 484 HPALETTE16 WINAPI GDISelectPalette( HDC16 hdc, HPALETTE16 hpal, WORD wBkg)
 485 {
 486     HPALETTE16 prev;
 487     DC *dc;
 488
 489     dprintf_palette(stddeb, "GDISelectPalette: %04x %04x\n", hdc, hpal );
 490
 491     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 492     if (!dc)
 493     {
 494         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 495         if (!dc) return 0;
 496     }
 497     prev = dc->w.hPalette;
 498     dc->w.hPalette = hpal;
 499     GDI_HEAP_UNLOCK( hdc );
 500     if (!wBkg) hPrimaryPalette = hpal;
 501     return prev;
 502 }
 503
 504
 505 /***********************************************************************
 506  *           GDIRealizePalette    (GDI.362)
 507  */
 508 UINT16 WINAPI GDIRealizePalette( HDC16 hdc )
 509 {
 510     PALETTEOBJ* palPtr;
 511     int realized = 0;
 512     DC*         dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 513     if (!dc)
 514     {
 515         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 516         if (!dc) return 0;
 517     }
 518
 519     dprintf_palette(stddeb, "GDIRealizePalette: %04x...", hdc );
 520
 521     if( dc &&  dc->w.hPalette != hLastRealizedPalette )
 522     {
 523         if( dc->w.hPalette == STOCK_DEFAULT_PALETTE )
 524             return RealizeDefaultPalette( hdc );
 525
 526         palPtr = (PALETTEOBJ *) GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC );
 527
 528         realized = COLOR_SetMapping(palPtr,0,palPtr->logpalette.palNumEntries,
 529                                     (dc->w.hPalette != hPrimaryPalette) ||
 530                                     (dc->w.hPalette == STOCK_DEFAULT_PALETTE));
 531         GDI_HEAP_UNLOCK( dc->w.hPalette );
 532         hLastRealizedPalette = dc->w.hPalette;
 533     }
 534     else dprintf_palette(stddeb, " skipping (hLastRealizedPalette = %04x) ",
 535                          hLastRealizedPalette);
 536
 537     GDI_HEAP_UNLOCK( hdc );
 538     dprintf_palette(stdnimp, " realized %i colors\n", realized );
 539     return (UINT16)realized;
 540 }
 541
 542
 543 /***********************************************************************
 544  *           RealizeDefaultPalette    (GDI.365)
 545  */
 546 UINT16 WINAPI RealizeDefaultPalette( HDC16 hdc )
 547 {
 548     DC          *dc;
 549     PALETTEOBJ*  palPtr;
 550     int          i, index, realized = 0;
 551
 552     dprintf_palette(stddeb,"RealizeDefaultPalette: %04x\n", hdc );
 553
 554     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 555     if (!dc)
 556     {
 557         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 558         if (!dc) return 0;
 559     }
 560
 561     if ( dc->w.flags & DC_MEMORY )
 562       {
 563         GDI_HEAP_UNLOCK( hdc );
 564         return 0;
 565       }
 566
 567     hPrimaryPalette = STOCK_DEFAULT_PALETTE;
 568     hLastRealizedPalette = STOCK_DEFAULT_PALETTE;
 569
 570     palPtr = (PALETTEOBJ*)GDI_GetObjPtr(STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
 571
 572     /* lookup is needed to account for SetSystemPaletteUse() stuff */
 573
 574     for( i = 0; i < 20; i++ )
 575        {
 576          index = COLOR_LookupSystemPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
 577
 578          /* mapping is allocated in COLOR_InitPalette() */
 579
 580          if( index != palPtr->mapping[i] ) { palPtr->mapping[i]=index; realized++; }
 581        }
 582     return realized;
 583 }
 584
 585 /***********************************************************************
 586  *           IsDCCurrentPalette   (GDI.412)
 587  */
 588 BOOL16 WINAPI IsDCCurrentPalette(HDC16 hDC)
 589 {
 590     DC* dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
 591     if (dc)
 592     {
 593       GDI_HEAP_UNLOCK( hDC );
 594       return dc->w.hPalette == hPrimaryPalette;
 595     }
 596     return FALSE;
 597 }
 598
 599
 600 /***********************************************************************
 601  *           SelectPalette16    (USER.282)
 602  */
 603 HPALETTE16 WINAPI SelectPalette16( HDC16 hDC, HPALETTE16 hPal,
 604                                    BOOL16 bForceBackground )
 605 {
 606     return SelectPalette32( hDC, hPal, bForceBackground );
 607 }
 608
 609
 610 /***********************************************************************
 611  *           SelectPalette32    (GDI32.300)
 612  */
 613 HPALETTE32 WINAPI SelectPalette32( HDC32 hDC, HPALETTE32 hPal,
 614                                    BOOL32 bForceBackground )
 615 {
 616     WORD        wBkgPalette = 1;
 617     PALETTEOBJ* lpt = (PALETTEOBJ*) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 618
 619     dprintf_palette(stddeb,"SelectPalette: dc %04x pal %04x, force=%i ",
 620                             hDC, hPal, bForceBackground);
 621     if( !lpt ) return 0;
 622
 623     dprintf_palette(stddeb," entries = %d\n",
 624                             lpt->logpalette.palNumEntries);
 625     GDI_HEAP_UNLOCK( hPal );
 626
 627     if( hPal != STOCK_DEFAULT_PALETTE )
 628     {
 629         HWND32 hWnd = WindowFromDC32( hDC );
 630         HWND32 hActive = GetActiveWindow32();
 631
 632         /* set primary palette if it's related to current active */
 633
 634         if((!hWnd || (hActive == hWnd || IsChild16(hActive,hWnd))) &&
 635             !bForceBackground )
 636             wBkgPalette = 0;
 637     }
 638     return GDISelectPalette( hDC, hPal, wBkgPalette);
 639 }
 640
 641
 642 /***********************************************************************
 643  *           RealizePalette16    (USER.283)
 644  */
 645 UINT16 WINAPI RealizePalette16( HDC16 hDC )
 646 {
 647     return RealizePalette32( hDC );
 648 }
 649
 650
 651 /***********************************************************************
 652  *           RealizePalette32    (GDI32.280)
 653  */
 654 UINT32 WINAPI RealizePalette32( HDC32 hDC )
 655 {
 656     UINT32 realized = GDIRealizePalette( hDC );
 657
 658     /* do not send anything if no colors were changed */
 659
 660     if( IsDCCurrentPalette( hDC ) && realized &&
 661         !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
 662     {
 663         /* Send palette change notification */
 664
 665         HWND32 hWnd;
 666         if( (hWnd = WindowFromDC32( hDC )) )
 667             SendMessage16( HWND_BROADCAST, WM_PALETTECHANGED, hWnd, 0L);
 668     }
 669     return realized;
 670 }
 671
 672
 673 /**********************************************************************
 674  *            UpdateColors16   (GDI.366)
 675  */
 676 INT16 WINAPI UpdateColors16( HDC16 hDC )
 677 {
 678     HWND32 hWnd = WindowFromDC32( hDC );
 679
 680     /* Docs say that we have to remap current drawable pixel by pixel
 681      * but it would take forever given the speed of XGet/PutPixel.
 682      */
 683     if (hWnd && !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
 684         InvalidateRect32( hWnd, NULL, FALSE );
 685     return 0x666;
 686 }
 687
 688
 689 /**********************************************************************
 690  *            UpdateColors32   (GDI32.359)
 691  */
 692 BOOL32 WINAPI UpdateColors32( HDC32 hDC )
 693 {
 694     UpdateColors16( hDC );
 695     return TRUE;
 696 }