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 "ts_xlib.h"
  14
  15 #include "gdi.h"
  16 #include "color.h"
  17 #include "palette.h"
  18 #include "xmalloc.h"
  19 #include "debug.h"
  20
  21 static UINT32 SystemPaletteUse = SYSPAL_STATIC;  /* currently not considered */
  22
  23 static HPALETTE16 hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */
  24 static HPALETTE16 hLastRealizedPalette = 0; /* UnrealizeObject() needs it */
  25
  26
  27 /***********************************************************************
  28  *           PALETTE_Init
  29  *
  30  * Create the system palette.
  31  */
  32 HPALETTE16 PALETTE_Init(void)
  33 {
  34     int                 i;
  35     HPALETTE16          hpalette;
  36     LOGPALETTE *        palPtr;
  37     PALETTEOBJ*         palObj;
  38     const PALETTEENTRY* __sysPalTemplate = COLOR_GetSystemPaletteTemplate();
  39
  40     /* create default palette (20 system colors) */
  41
  42     palPtr = HeapAlloc( GetProcessHeap(), 0,
  43              sizeof(LOGPALETTE) + (NB_RESERVED_COLORS-1)*sizeof(PALETTEENTRY));
  44     if (!palPtr) return FALSE;
  45
  46     palPtr->palVersion = 0x300;
  47     palPtr->palNumEntries = NB_RESERVED_COLORS;
  48     for( i = 0; i < NB_RESERVED_COLORS; i ++ )
  49     {
  50         palPtr->palPalEntry[i].peRed = __sysPalTemplate[i].peRed;
  51         palPtr->palPalEntry[i].peGreen = __sysPalTemplate[i].peGreen;
  52         palPtr->palPalEntry[i].peBlue = __sysPalTemplate[i].peBlue;
  53         palPtr->palPalEntry[i].peFlags = 0;
  54     }
  55     hpalette = CreatePalette16( palPtr );
  56
  57     palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
  58
  59     palObj->mapping = xmalloc( sizeof(int) * 20 );
  60
  61     GDI_HEAP_UNLOCK( hpalette );
  62
  63     HeapFree( GetProcessHeap(), 0, palPtr );
  64     return hpalette;
  65 }
  66
  67 /***********************************************************************
  68  *           PALETTE_ValidateFlags
  69  */
  70 void PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, int size)
  71 {
  72     int i = 0;
  73     for( ; i<size ; i++ )
  74         lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
  75 }
  76
  77
  78 /***********************************************************************
  79  *           CreatePalette16    (GDI.360)
  80  */
  81 HPALETTE16 WINAPI CreatePalette16( const LOGPALETTE* palette )
  82 {
  83     return CreatePalette32( palette );
  84 }
  85
  86
  87 /***********************************************************************
  88  *           CreatePalette32    (GDI32.53)
  89  */
  90 HPALETTE32 WINAPI CreatePalette32( const LOGPALETTE* palette )
  91 {
  92     PALETTEOBJ * palettePtr;
  93     HPALETTE32 hpalette;
  94     int size = sizeof(LOGPALETTE) + (palette->palNumEntries - 1) * sizeof(PALETTEENTRY);
  95
  96     dprintf_info(palette,"CreatePalette: %i entries \n",
  97                     palette->palNumEntries);
  98
  99     hpalette = GDI_AllocObject( size + sizeof(int*) +sizeof(GDIOBJHDR) , PALETTE_MAGIC );
 100     if (!hpalette) return 0;
 101
 102     palettePtr = (PALETTEOBJ *) GDI_HEAP_LOCK( hpalette );
 103     memcpy( &palettePtr->logpalette, palette, size );
 104     PALETTE_ValidateFlags(palettePtr->logpalette.palPalEntry,
 105                           palettePtr->logpalette.palNumEntries);
 106     palettePtr->mapping = NULL;
 107     GDI_HEAP_UNLOCK( hpalette );
 108
 109     dprintf_info(palette,"   returning %04x\n", hpalette);
 110     return hpalette;
 111 }
 112
 113 /***********************************************************************
 114  *           CreateHalftonePalette   (GDI32.47)
 115  */
 116 HPALETTE32 WINAPI CreateHalftonePalette(HDC32 hdc)
 117 {
 118   fprintf(stdnimp,"CreateHalftonePalette: empty stub!\n");
 119   return NULL;
 120 }
 121
 122 /***********************************************************************
 123  *           GetPaletteEntries16    (GDI.363)
 124  */
 125 UINT16 WINAPI GetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
 126                                    UINT16 count, LPPALETTEENTRY entries )
 127 {
 128     return GetPaletteEntries32( hpalette, start, count, entries );
 129 }
 130
 131
 132 /***********************************************************************
 133  *           GetPaletteEntries32    (GDI32.209)
 134  */
 135 UINT32 WINAPI GetPaletteEntries32( HPALETTE32 hpalette, UINT32 start,
 136                                    UINT32 count, LPPALETTEENTRY entries )
 137 {
 138     PALETTEOBJ * palPtr;
 139     INT32 numEntries;
 140
 141     dprintf_info(palette,"GetPaletteEntries: hpal = %04x, %i entries\n",
 142                      hpalette, count );
 143
 144     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 145     if (!palPtr) return 0;
 146
 147     numEntries = palPtr->logpalette.palNumEntries;
 148     if (start >= numEntries)
 149     {
 150       GDI_HEAP_UNLOCK( hpalette );
 151       return 0;
 152     }
 153     if (start+count > numEntries) count = numEntries - start;
 154     memcpy( entries, &palPtr->logpalette.palPalEntry[start],
 155             count * sizeof(PALETTEENTRY) );
 156     for( numEntries = 0; numEntries < count ; numEntries++ )
 157          if (entries[numEntries].peFlags & 0xF0)
 158              entries[numEntries].peFlags = 0;
 159     GDI_HEAP_UNLOCK( hpalette );
 160     return count;
 161 }
 162
 163
 164 /***********************************************************************
 165  *           SetPaletteEntries16    (GDI.364)
 166  */
 167 UINT16 WINAPI SetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
 168                                    UINT16 count, LPPALETTEENTRY entries )
 169 {
 170     return SetPaletteEntries32( hpalette, start, count, entries );
 171 }
 172
 173
 174 /***********************************************************************
 175  *           SetPaletteEntries32    (GDI32.326)
 176  */
 177 UINT32 WINAPI SetPaletteEntries32( HPALETTE32 hpalette, UINT32 start,
 178                                    UINT32 count, LPPALETTEENTRY entries )
 179 {
 180     PALETTEOBJ * palPtr;
 181     INT32 numEntries;
 182
 183     dprintf_info(palette,"SetPaletteEntries: hpal = %04x, %i entries\n",
 184                      hpalette, count );
 185
 186     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 187     if (!palPtr) return 0;
 188
 189     numEntries = palPtr->logpalette.palNumEntries;
 190     if (start >= numEntries)
 191     {
 192       GDI_HEAP_UNLOCK( hpalette );
 193       return 0;
 194     }
 195     if (start+count > numEntries) count = numEntries - start;
 196     memcpy( &palPtr->logpalette.palPalEntry[start], entries,
 197             count * sizeof(PALETTEENTRY) );
 198     PALETTE_ValidateFlags(palPtr->logpalette.palPalEntry,
 199                           palPtr->logpalette.palNumEntries);
 200     free(palPtr->mapping);
 201     palPtr->mapping = NULL;
 202     GDI_HEAP_UNLOCK( hpalette );
 203     return count;
 204 }
 205
 206
 207 /***********************************************************************
 208  *           ResizePalette16   (GDI.368)
 209  */
 210 BOOL16 WINAPI ResizePalette16( HPALETTE16 hPal, UINT16 cEntries )
 211 {
 212     return ResizePalette32( hPal, cEntries );
 213 }
 214
 215
 216 /***********************************************************************
 217  *           ResizePalette32   (GDI32.289)
 218  */
 219 BOOL32 WINAPI ResizePalette32( HPALETTE32 hPal, UINT32 cEntries )
 220 {
 221     PALETTEOBJ * palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 222     UINT32       cPrevEnt, prevVer;
 223     int          prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
 224     int*         mapping = NULL;
 225
 226     dprintf_info(palette,"ResizePalette: hpal = %04x, prev = %i, new = %i\n",
 227                     hPal, palPtr ? palPtr->logpalette.palNumEntries : -1,
 228                     cEntries );
 229     if( !palPtr ) return FALSE;
 230     cPrevEnt = palPtr->logpalette.palNumEntries;
 231     prevVer = palPtr->logpalette.palVersion;
 232     prevsize = sizeof(LOGPALETTE) + (cPrevEnt - 1) * sizeof(PALETTEENTRY) +
 233                                         sizeof(int*) + sizeof(GDIOBJHDR);
 234     size += sizeof(int*) + sizeof(GDIOBJHDR);
 235     mapping = palPtr->mapping;
 236
 237     GDI_HEAP_UNLOCK( hPal );
 238
 239     hPal = GDI_HEAP_REALLOC( hPal, size );
 240     palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 241     if( !palPtr ) return FALSE;
 242
 243     if( mapping )
 244         palPtr->mapping = (int*) xrealloc( mapping, cEntries * sizeof(int) );
 245     if( cEntries > cPrevEnt )
 246     {
 247         if( mapping )
 248             memset(palPtr->mapping + cPrevEnt, 0, (cEntries - cPrevEnt)*sizeof(int));
 249         memset( (BYTE*)palPtr + prevsize, 0, size - prevsize );
 250         PALETTE_ValidateFlags((PALETTEENTRY*)((BYTE*)palPtr + prevsize),
 251                                                      cEntries - cPrevEnt );
 252     }
 253     palPtr->logpalette.palNumEntries = cEntries;
 254     palPtr->logpalette.palVersion = prevVer;
 255     GDI_HEAP_UNLOCK( hPal );
 256     return TRUE;
 257 }
 258
 259
 260 /***********************************************************************
 261  *           AnimatePalette16   (GDI.367)
 262  */
 263 void WINAPI AnimatePalette16( HPALETTE16 hPal, UINT16 StartIndex,
 264                               UINT16 NumEntries, LPPALETTEENTRY PaletteColors)
 265 {
 266     AnimatePalette32( hPal, StartIndex, NumEntries, PaletteColors );
 267 }
 268
 269
 270 /***********************************************************************
 271  *           AnimatePalette32   (GDI32.6)
 272  *
 273  * FIXME: should use existing mapping when animating a primary palette
 274  */
 275 BOOL32 WINAPI AnimatePalette32( HPALETTE32 hPal, UINT32 StartIndex,
 276                                UINT32 NumEntries, LPPALETTEENTRY PaletteColors)
 277 {
 278     dprintf_info(palette, "AnimatePalette: %04x (%i - %i)\n", hPal,
 279                     StartIndex, StartIndex + NumEntries );
 280
 281     if( hPal != STOCK_DEFAULT_PALETTE )
 282     {
 283         PALETTEOBJ* palPtr = (PALETTEOBJ *)GDI_GetObjPtr(hPal, PALETTE_MAGIC);
 284
 285         if( (StartIndex + NumEntries) <= palPtr->logpalette.palNumEntries )
 286         {
 287             UINT32 u;
 288             for( u = 0; u < NumEntries; u++ )
 289                 palPtr->logpalette.palPalEntry[u + StartIndex] = PaletteColors[u];
 290             COLOR_SetMapping(palPtr, StartIndex, NumEntries,
 291                              hPal != hPrimaryPalette );
 292             GDI_HEAP_UNLOCK( hPal );
 293             return TRUE;
 294         }
 295     }
 296     return FALSE;
 297 }
 298
 299
 300 /***********************************************************************
 301  *           SetSystemPaletteUse16   (GDI.373)
 302  */
 303 UINT16 WINAPI SetSystemPaletteUse16( HDC16 hdc, UINT16 use )
 304 {
 305     return SetSystemPaletteUse32( hdc, use );
 306 }
 307
 308
 309 /***********************************************************************
 310  *           SetSystemPaletteUse32   (GDI32.335)
 311  */
 312 UINT32 WINAPI SetSystemPaletteUse32( HDC32 hdc, UINT32 use )
 313 {
 314     UINT32 old = SystemPaletteUse;
 315     fprintf( stdnimp,"SetSystemPaletteUse(%04x,%04x) // empty stub !!!\n",
 316              hdc, use );
 317     SystemPaletteUse = use;
 318     return old;
 319 }
 320
 321
 322 /***********************************************************************
 323  *           GetSystemPaletteUse16   (GDI.374)
 324  */
 325 UINT16 WINAPI GetSystemPaletteUse16( HDC16 hdc )
 326 {
 327     return SystemPaletteUse;
 328 }
 329
 330
 331 /***********************************************************************
 332  *           GetSystemPaletteUse32   (GDI32.223)
 333  */
 334 UINT32 WINAPI GetSystemPaletteUse32( HDC32 hdc )
 335 {
 336     return SystemPaletteUse;
 337 }
 338
 339
 340 /***********************************************************************
 341  *           GetSystemPaletteEntries16   (GDI.375)
 342  */
 343 UINT16 WINAPI GetSystemPaletteEntries16( HDC16 hdc, UINT16 start, UINT16 count,
 344                                          LPPALETTEENTRY entries )
 345 {
 346     return GetSystemPaletteEntries32( hdc, start, count, entries );
 347 }
 348
 349
 350 /***********************************************************************
 351  *           GetSystemPaletteEntries32   (GDI32.222)
 352  */
 353 UINT32 WINAPI GetSystemPaletteEntries32( HDC32 hdc, UINT32 start, UINT32 count,
 354                                          LPPALETTEENTRY entries )
 355 {
 356     UINT32 i;
 357     DC *dc;
 358
 359     dprintf_info(palette, "GetSystemPaletteEntries: hdc = %04x, "
 360                     "cound = %i\n", hdc, count );
 361
 362     if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
 363     if (start >= dc->w.devCaps->sizePalette)
 364       {
 365         GDI_HEAP_UNLOCK( hdc );
 366         return 0;
 367       }
 368     if (start+count >= dc->w.devCaps->sizePalette)
 369         count = dc->w.devCaps->sizePalette - start;
 370     for (i = 0; i < count; i++)
 371     {
 372         *(COLORREF*)(entries + i) = COLOR_GetSystemPaletteEntry( start + i );
 373
 374         dprintf_info(palette,"\tidx(%02x) -> RGB(%08lx)\n",
 375                          start + i, *(COLORREF*)(entries + i) );
 376     }
 377     GDI_HEAP_UNLOCK( hdc );
 378     return count;
 379 }
 380
 381
 382 /***********************************************************************
 383  *           GetNearestPaletteIndex16   (GDI.370)
 384  */
 385 UINT16 WINAPI GetNearestPaletteIndex16( HPALETTE16 hpalette, COLORREF color )
 386 {
 387     return GetNearestPaletteIndex32( hpalette, color );
 388 }
 389
 390
 391 /***********************************************************************
 392  *           GetNearestPaletteIndex32   (GDI32.203)
 393  */
 394 UINT32 WINAPI GetNearestPaletteIndex32( HPALETTE32 hpalette, COLORREF color )
 395 {
 396     PALETTEOBJ* palObj = (PALETTEOBJ*)GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
 397     UINT32 index  = 0;
 398
 399     if( palObj )
 400         index = COLOR_PaletteLookupPixel( palObj->logpalette.palPalEntry,
 401                                           palObj->logpalette.palNumEntries,
 402                                           NULL, color, FALSE );
 403
 404     dprintf_info(palette,"GetNearestPaletteIndex(%04x,%06lx): returning %d\n",
 405                     hpalette, color, index );
 406     GDI_HEAP_UNLOCK( hpalette );
 407     return index;
 408 }
 409
 410
 411 /***********************************************************************
 412  *           GetNearestColor16   (GDI.154)
 413  */
 414 COLORREF WINAPI GetNearestColor16( HDC16 hdc, COLORREF color )
 415 {
 416     return GetNearestColor32( hdc, color );
 417 }
 418
 419
 420 /***********************************************************************
 421  *           GetNearestColor32   (GDI32.202)
 422  */
 423 COLORREF WINAPI GetNearestColor32( HDC32 hdc, COLORREF color )
 424 {
 425     COLORREF     nearest = 0xFADECAFE;
 426     DC          *dc;
 427     PALETTEOBJ  *palObj;
 428
 429     if ( (dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC )) )
 430     {
 431       palObj = (PALETTEOBJ*)
 432                 GDI_GetObjPtr( (dc->w.hPalette)? dc->w.hPalette
 433                                                : STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
 434
 435       nearest = COLOR_LookupNearestColor( palObj->logpalette.palPalEntry,
 436                                           palObj->logpalette.palNumEntries, color );
 437       GDI_HEAP_UNLOCK( dc->w.hPalette );
 438     }
 439
 440     dprintf_info(palette,"GetNearestColor(%06lx): returning %06lx\n",
 441                     color, nearest );
 442     GDI_HEAP_UNLOCK( hdc );
 443     return nearest;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           PALETTE_GetObject
 449  */
 450 int PALETTE_GetObject( PALETTEOBJ * palette, int count, LPSTR buffer )
 451 {
 452     if (count > sizeof(WORD)) count = sizeof(WORD);
 453     memcpy( buffer, &palette->logpalette.palNumEntries, count );
 454     return count;
 455 }
 456
 457
 458 /***********************************************************************
 459  *           PALETTE_UnrealizeObject
 460  */
 461 BOOL32 PALETTE_UnrealizeObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
 462 {
 463     if (palette->mapping)
 464     {
 465         free( palette->mapping );
 466         palette->mapping = NULL;
 467     }
 468     if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
 469     return TRUE;
 470 }
 471
 472
 473 /***********************************************************************
 474  *           PALETTE_DeleteObject
 475  */
 476 BOOL32 PALETTE_DeleteObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
 477 {
 478     free( palette->mapping );
 479     if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
 480     return GDI_FreeObject( hpalette );
 481 }
 482
 483
 484 /***********************************************************************
 485  *           GDISelectPalette    (GDI.361)
 486  */
 487 HPALETTE16 WINAPI GDISelectPalette( HDC16 hdc, HPALETTE16 hpal, WORD wBkg)
 488 {
 489     HPALETTE16 prev;
 490     DC *dc;
 491
 492     dprintf_info(palette, "GDISelectPalette: %04x %04x\n", hdc, hpal );
 493
 494     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 495     if (!dc)
 496     {
 497         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 498         if (!dc) return 0;
 499     }
 500     prev = dc->w.hPalette;
 501     dc->w.hPalette = hpal;
 502     GDI_HEAP_UNLOCK( hdc );
 503     if (!wBkg) hPrimaryPalette = hpal;
 504     return prev;
 505 }
 506
 507
 508 /***********************************************************************
 509  *           GDIRealizePalette    (GDI.362)
 510  */
 511 UINT16 WINAPI GDIRealizePalette( HDC16 hdc )
 512 {
 513     PALETTEOBJ* palPtr;
 514     int realized = 0;
 515     DC*         dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 516     if (!dc)
 517     {
 518         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 519         if (!dc) return 0;
 520     }
 521
 522     dprintf_info(palette, "GDIRealizePalette: %04x...\n", hdc );
 523
 524     if( dc &&  dc->w.hPalette != hLastRealizedPalette )
 525     {
 526         if( dc->w.hPalette == STOCK_DEFAULT_PALETTE )
 527             return RealizeDefaultPalette( hdc );
 528
 529         palPtr = (PALETTEOBJ *) GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC );
 530
 531         realized = COLOR_SetMapping(palPtr,0,palPtr->logpalette.palNumEntries,
 532                                     (dc->w.hPalette != hPrimaryPalette) ||
 533                                     (dc->w.hPalette == STOCK_DEFAULT_PALETTE));
 534         GDI_HEAP_UNLOCK( dc->w.hPalette );
 535         hLastRealizedPalette = dc->w.hPalette;
 536     }
 537     else dprintf_info(palette, "  skipping (hLastRealizedPalette = %04x)\n",
 538                          hLastRealizedPalette);
 539
 540     GDI_HEAP_UNLOCK( hdc );
 541     dprintf_fixme(palette, "   realized %i colors - not impmenented?\n", realized );
 542     return (UINT16)realized;
 543 }
 544
 545
 546 /***********************************************************************
 547  *           RealizeDefaultPalette    (GDI.365)
 548  */
 549 UINT16 WINAPI RealizeDefaultPalette( HDC16 hdc )
 550 {
 551     DC          *dc;
 552     PALETTEOBJ*  palPtr;
 553     int          i, index, realized = 0;
 554
 555     dprintf_info(palette,"RealizeDefaultPalette: %04x\n", hdc );
 556
 557     dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
 558     if (!dc)
 559     {
 560         dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
 561         if (!dc) return 0;
 562     }
 563
 564     if ( dc->w.flags & DC_MEMORY )
 565       {
 566         GDI_HEAP_UNLOCK( hdc );
 567         return 0;
 568       }
 569
 570     hPrimaryPalette = STOCK_DEFAULT_PALETTE;
 571     hLastRealizedPalette = STOCK_DEFAULT_PALETTE;
 572
 573     palPtr = (PALETTEOBJ*)GDI_GetObjPtr(STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
 574
 575     /* lookup is needed to account for SetSystemPaletteUse() stuff */
 576
 577     for( i = 0; i < 20; i++ )
 578        {
 579          index = COLOR_LookupSystemPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
 580
 581          /* mapping is allocated in COLOR_InitPalette() */
 582
 583          if( index != palPtr->mapping[i] ) { palPtr->mapping[i]=index; realized++; }
 584        }
 585     return realized;
 586 }
 587
 588 /***********************************************************************
 589  *           IsDCCurrentPalette   (GDI.412)
 590  */
 591 BOOL16 WINAPI IsDCCurrentPalette(HDC16 hDC)
 592 {
 593     DC* dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
 594     if (dc)
 595     {
 596       GDI_HEAP_UNLOCK( hDC );
 597       return dc->w.hPalette == hPrimaryPalette;
 598     }
 599     return FALSE;
 600 }
 601
 602
 603 /***********************************************************************
 604  *           SelectPalette16    (USER.282)
 605  */
 606 HPALETTE16 WINAPI SelectPalette16( HDC16 hDC, HPALETTE16 hPal,
 607                                    BOOL16 bForceBackground )
 608 {
 609     return SelectPalette32( hDC, hPal, bForceBackground );
 610 }
 611
 612
 613 /***********************************************************************
 614  *           SelectPalette32    (GDI32.300)
 615  */
 616 HPALETTE32 WINAPI SelectPalette32( HDC32 hDC, HPALETTE32 hPal,
 617                                    BOOL32 bForceBackground )
 618 {
 619     WORD        wBkgPalette = 1;
 620     PALETTEOBJ* lpt = (PALETTEOBJ*) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
 621
 622     dprintf_info(palette,"SelectPalette: dc %04x pal %04x, force=%i \n",
 623                             hDC, hPal, bForceBackground);
 624     if( !lpt ) return 0;
 625
 626     dprintf_info(palette," entries = %d\n",
 627                             lpt->logpalette.palNumEntries);
 628     GDI_HEAP_UNLOCK( hPal );
 629
 630     if( hPal != STOCK_DEFAULT_PALETTE )
 631     {
 632         HWND32 hWnd = WindowFromDC32( hDC );
 633         HWND32 hActive = GetActiveWindow32();
 634
 635         /* set primary palette if it's related to current active */
 636
 637         if((!hWnd || (hActive == hWnd || IsChild16(hActive,hWnd))) &&
 638             !bForceBackground )
 639             wBkgPalette = 0;
 640     }
 641     return GDISelectPalette( hDC, hPal, wBkgPalette);
 642 }
 643
 644
 645 /***********************************************************************
 646  *           RealizePalette16    (USER.283)
 647  */
 648 UINT16 WINAPI RealizePalette16( HDC16 hDC )
 649 {
 650     return RealizePalette32( hDC );
 651 }
 652
 653
 654 /***********************************************************************
 655  *           RealizePalette32    (GDI32.280)
 656  */
 657 UINT32 WINAPI RealizePalette32( HDC32 hDC )
 658 {
 659     UINT32 realized = GDIRealizePalette( hDC );
 660
 661     /* do not send anything if no colors were changed */
 662
 663     if( IsDCCurrentPalette( hDC ) && realized &&
 664         !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
 665     {
 666         /* Send palette change notification */
 667
 668         HWND32 hWnd;
 669         if( (hWnd = WindowFromDC32( hDC )) )
 670             SendMessage16( HWND_BROADCAST, WM_PALETTECHANGED, hWnd, 0L);
 671     }
 672     return realized;
 673 }
 674
 675
 676 /**********************************************************************
 677  *            UpdateColors16   (GDI.366)
 678  */
 679 INT16 WINAPI UpdateColors16( HDC16 hDC )
 680 {
 681     HWND32 hWnd = WindowFromDC32( hDC );
 682
 683     /* Docs say that we have to remap current drawable pixel by pixel
 684      * but it would take forever given the speed of XGet/PutPixel.
 685      */
 686     if (hWnd && !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
 687         InvalidateRect32( hWnd, NULL, FALSE );
 688     return 0x666;
 689 }
 690
 691
 692 /**********************************************************************
 693  *            UpdateColors32   (GDI32.359)
 694  */
 695 BOOL32 WINAPI UpdateColors32( HDC32 hDC )
 696 {
 697     UpdateColors16( hDC );
 698     return TRUE;
 699 }