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Sweden-Number/objects/palette.c

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/*
* GDI palette objects
*
* Copyright 1993,1994 Alexandre Julliard
* Copyright 1996 Alex Korobka
*
* PALETTEOBJ is documented in the Dr. Dobbs Journal May 1993.
* Information in the "Undocumented Windows" is incorrect.
*/
#include <stdlib.h>
#include <string.h>
#include "gdi.h"
#include "color.h"
#include "palette.h"
#include "xmalloc.h"
#include "debug.h"
#include "wine/winuser16.h"
FARPROC32 pfnSelectPalette = NULL;
FARPROC32 pfnRealizePalette = NULL;
static UINT32 SystemPaletteUse = SYSPAL_STATIC; /* currently not considered */
static HPALETTE16 hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */
static HPALETTE16 hLastRealizedPalette = 0; /* UnrealizeObject() needs it */
/***********************************************************************
* PALETTE_Init
*
* Create the system palette.
*/
HPALETTE16 PALETTE_Init(void)
{
int i;
HPALETTE16 hpalette;
LOGPALETTE * palPtr;
PALETTEOBJ* palObj;
const PALETTEENTRY* __sysPalTemplate = COLOR_GetSystemPaletteTemplate();
/* create default palette (20 system colors) */
palPtr = HeapAlloc( GetProcessHeap(), 0,
sizeof(LOGPALETTE) + (NB_RESERVED_COLORS-1)*sizeof(PALETTEENTRY));
if (!palPtr) return FALSE;
palPtr->palVersion = 0x300;
palPtr->palNumEntries = NB_RESERVED_COLORS;
for( i = 0; i < NB_RESERVED_COLORS; i ++ )
{
palPtr->palPalEntry[i].peRed = __sysPalTemplate[i].peRed;
palPtr->palPalEntry[i].peGreen = __sysPalTemplate[i].peGreen;
palPtr->palPalEntry[i].peBlue = __sysPalTemplate[i].peBlue;
palPtr->palPalEntry[i].peFlags = 0;
}
hpalette = CreatePalette16( palPtr );
palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (palObj)
{
palObj->mapping = xmalloc( sizeof(int) * 20 );
GDI_HEAP_UNLOCK( hpalette );
HeapFree( GetProcessHeap(), 0, palPtr );
}
return hpalette;
}
/***********************************************************************
* PALETTE_ValidateFlags
*/
void PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, int size)
{
int i = 0;
for( ; i<size ; i++ )
lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
}
/***********************************************************************
* CreatePalette16 (GDI.360)
*/
HPALETTE16 WINAPI CreatePalette16( const LOGPALETTE* palette )
{
return CreatePalette32( palette );
}
/***********************************************************************
* CreatePalette32 [GDI32.53] Creates a logical color palette
*
* RETURNS
* Success: Handle to logical palette
* Failure: NULL
*/
HPALETTE32 WINAPI CreatePalette32(
const LOGPALETTE* palette) /* [in] Pointer to logical color palette */
{
PALETTEOBJ * palettePtr;
HPALETTE32 hpalette;
int size;
if (!palette) return 0;
TRACE(palette,"entries=%i\n", palette->palNumEntries);
size = sizeof(LOGPALETTE) + (palette->palNumEntries - 1) * sizeof(PALETTEENTRY);
hpalette = GDI_AllocObject( size + sizeof(int*) +sizeof(GDIOBJHDR) , PALETTE_MAGIC );
if (!hpalette) return 0;
palettePtr = (PALETTEOBJ *) GDI_HEAP_LOCK( hpalette );
memcpy( &palettePtr->logpalette, palette, size );
PALETTE_ValidateFlags(palettePtr->logpalette.palPalEntry,
palettePtr->logpalette.palNumEntries);
palettePtr->mapping = NULL;
GDI_HEAP_UNLOCK( hpalette );
TRACE(palette," returning %04x\n", hpalette);
return hpalette;
}
/***********************************************************************
* CreateHalftonePalette [GDI32.47] Creates a halftone palette
*
* RETURNS
* Success: Handle to logical halftone palette
* Failure: 0
*
* FIXME: not truly tested
*/
HPALETTE32 WINAPI CreateHalftonePalette(HDC32 hdc) /* [in] Handle to device context */
{ int r,g,b,i;
HPALETTE32 hPalette = 0;
int palNumEntries = 216 + NB_RESERVED_COLORS;
const PALETTEENTRY* __sysPalTemplate = COLOR_GetSystemPaletteTemplate();
LOGPALETTE * pLogPal = (LOGPALETTE*) HeapAlloc( GetProcessHeap(), 0,
sizeof(LOGPALETTE) + (palNumEntries-1)*sizeof(PALETTEENTRY));
TRACE(palette,"(0x%x)\n", hdc);
pLogPal->palVersion = 0x300;
pLogPal->palNumEntries = palNumEntries;
for( i = 0; i < NB_RESERVED_COLORS; i ++ )
{ pLogPal->palPalEntry[i].peRed = __sysPalTemplate[i].peRed;
pLogPal->palPalEntry[i].peGreen = __sysPalTemplate[i].peGreen;
pLogPal->palPalEntry[i].peBlue = __sysPalTemplate[i].peBlue;
pLogPal->palPalEntry[i].peFlags = 0;
}
for (r=0; r<6; r++)
{ for (g=0; g<6; g++)
{ for (b=0; b<6; b++)
{ pLogPal->palPalEntry[NB_RESERVED_COLORS+r*36+g*6+b].peRed = r*51;
pLogPal->palPalEntry[NB_RESERVED_COLORS+r*36+g*6+b].peGreen = g*51;
pLogPal->palPalEntry[NB_RESERVED_COLORS+r*36+g*6+b].peBlue = b*51;
pLogPal->palPalEntry[NB_RESERVED_COLORS+r*36+g*6+b].peFlags = 0;
}
}
}
hPalette = CreatePalette32 (pLogPal);
if (hPalette)
{ SelectPalette32 (hdc, hPalette, FALSE);
}
HeapFree (GetProcessHeap(), 0, pLogPal);
return hPalette;
}
/***********************************************************************
* GetPaletteEntries16 (GDI.363)
*/
UINT16 WINAPI GetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
UINT16 count, LPPALETTEENTRY entries )
{
return GetPaletteEntries32( hpalette, start, count, entries );
}
/***********************************************************************
* GetPaletteEntries32 [GDI32.209] Retrieves palette entries
*
* RETURNS
* Success: Number of entries from logical palette
* Failure: 0
*/
UINT32 WINAPI GetPaletteEntries32(
HPALETTE32 hpalette, /* [in] Handle of logical palette */
UINT32 start, /* [in] First entry to receive */
UINT32 count, /* [in] Number of entries to receive */
LPPALETTEENTRY entries) /* [out] Address of array receiving entries */
{
PALETTEOBJ * palPtr;
INT32 numEntries;
TRACE(palette,"hpal = %04x, count=%i\n", hpalette, count );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (!palPtr) return 0;
numEntries = palPtr->logpalette.palNumEntries;
if (start+count > numEntries) count = numEntries - start;
if (entries)
{
if (start >= numEntries)
{
GDI_HEAP_UNLOCK( hpalette );
return 0;
}
memcpy( entries, &palPtr->logpalette.palPalEntry[start],
count * sizeof(PALETTEENTRY) );
for( numEntries = 0; numEntries < count ; numEntries++ )
if (entries[numEntries].peFlags & 0xF0)
entries[numEntries].peFlags = 0;
GDI_HEAP_UNLOCK( hpalette );
}
return count;
}
/***********************************************************************
* SetPaletteEntries16 (GDI.364)
*/
UINT16 WINAPI SetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
UINT16 count, LPPALETTEENTRY entries )
{
return SetPaletteEntries32( hpalette, start, count, entries );
}
/***********************************************************************
* SetPaletteEntries32 [GDI32.326] Sets color values for range in palette
*
* RETURNS
* Success: Number of entries that were set
* Failure: 0
*/
UINT32 WINAPI SetPaletteEntries32(
HPALETTE32 hpalette, /* [in] Handle of logical palette */
UINT32 start, /* [in] Index of first entry to set */
UINT32 count, /* [in] Number of entries to set */
LPPALETTEENTRY entries) /* [in] Address of array of structures */
{
PALETTEOBJ * palPtr;
INT32 numEntries;
TRACE(palette,"hpal=%04x,start=%i,count=%i\n",hpalette,start,count );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (!palPtr) return 0;
numEntries = palPtr->logpalette.palNumEntries;
if (start >= numEntries)
{
GDI_HEAP_UNLOCK( hpalette );
return 0;
}
if (start+count > numEntries) count = numEntries - start;
memcpy( &palPtr->logpalette.palPalEntry[start], entries,
count * sizeof(PALETTEENTRY) );
PALETTE_ValidateFlags(palPtr->logpalette.palPalEntry,
palPtr->logpalette.palNumEntries);
free(palPtr->mapping);
palPtr->mapping = NULL;
GDI_HEAP_UNLOCK( hpalette );
return count;
}
/***********************************************************************
* ResizePalette16 (GDI.368)
*/
BOOL16 WINAPI ResizePalette16( HPALETTE16 hPal, UINT16 cEntries )
{
return ResizePalette32( hPal, cEntries );
}
/***********************************************************************
* ResizePalette32 [GDI32.289] Resizes logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL32 WINAPI ResizePalette32(
HPALETTE32 hPal, /* [in] Handle of logical palette */
UINT32 cEntries) /* [in] Number of entries in logical palette */
{
PALETTEOBJ * palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
UINT32 cPrevEnt, prevVer;
int prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
int* mapping = NULL;
TRACE(palette,"hpal = %04x, prev = %i, new = %i\n",
hPal, palPtr ? palPtr->logpalette.palNumEntries : -1,
cEntries );
if( !palPtr ) return FALSE;
cPrevEnt = palPtr->logpalette.palNumEntries;
prevVer = palPtr->logpalette.palVersion;
prevsize = sizeof(LOGPALETTE) + (cPrevEnt - 1) * sizeof(PALETTEENTRY) +
sizeof(int*) + sizeof(GDIOBJHDR);
size += sizeof(int*) + sizeof(GDIOBJHDR);
mapping = palPtr->mapping;
GDI_HEAP_UNLOCK( hPal );
hPal = GDI_HEAP_REALLOC( hPal, size );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
if( !palPtr ) return FALSE;
if( mapping )
palPtr->mapping = (int*) xrealloc( mapping, cEntries * sizeof(int) );
if( cEntries > cPrevEnt )
{
if( mapping )
memset(palPtr->mapping + cPrevEnt, 0, (cEntries - cPrevEnt)*sizeof(int));
memset( (BYTE*)palPtr + prevsize, 0, size - prevsize );
PALETTE_ValidateFlags((PALETTEENTRY*)((BYTE*)palPtr + prevsize),
cEntries - cPrevEnt );
}
palPtr->logpalette.palNumEntries = cEntries;
palPtr->logpalette.palVersion = prevVer;
GDI_HEAP_UNLOCK( hPal );
return TRUE;
}
/***********************************************************************
* AnimatePalette16 (GDI.367)
*/
void WINAPI AnimatePalette16( HPALETTE16 hPal, UINT16 StartIndex,
UINT16 NumEntries, const PALETTEENTRY* PaletteColors)
{
AnimatePalette32( hPal, StartIndex, NumEntries, PaletteColors );
}
/***********************************************************************
* AnimatePalette32 [GDI32.6] Replaces entries in logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* FIXME
* Should use existing mapping when animating a primary palette
*/
BOOL32 WINAPI AnimatePalette32(
HPALETTE32 hPal, /* [in] Handle to logical palette */
UINT32 StartIndex, /* [in] First entry in palette */
UINT32 NumEntries, /* [in] Count of entries in palette */
const PALETTEENTRY* PaletteColors) /* [in] Pointer to first replacement */
{
TRACE(palette, "%04x (%i - %i)\n", hPal, StartIndex,StartIndex+NumEntries);
if( hPal != STOCK_DEFAULT_PALETTE )
{
PALETTEOBJ* palPtr = (PALETTEOBJ *)GDI_GetObjPtr(hPal, PALETTE_MAGIC);
if (!palPtr) return FALSE;
if( (StartIndex + NumEntries) <= palPtr->logpalette.palNumEntries )
{
UINT32 u;
for( u = 0; u < NumEntries; u++ )
palPtr->logpalette.palPalEntry[u + StartIndex] = PaletteColors[u];
COLOR_SetMapping(palPtr, StartIndex, NumEntries,
hPal != hPrimaryPalette );
GDI_HEAP_UNLOCK( hPal );
return TRUE;
}
}
return FALSE;
}
/***********************************************************************
* SetSystemPaletteUse16 (GDI.373)
*/
UINT16 WINAPI SetSystemPaletteUse16( HDC16 hdc, UINT16 use )
{
return SetSystemPaletteUse32( hdc, use );
}
/***********************************************************************
* SetSystemPaletteUse32 [GDI32.335]
*
* RETURNS
* Success: Previous system palette
* Failure: SYSPAL_ERROR
*/
UINT32 WINAPI SetSystemPaletteUse32(
HDC32 hdc, /* [in] Handle of device context */
UINT32 use) /* [in] Palette-usage flag */
{
UINT32 old = SystemPaletteUse;
FIXME(palette,"(%04x,%04x): stub\n", hdc, use );
SystemPaletteUse = use;
return old;
}
/***********************************************************************
* GetSystemPaletteUse16 (GDI.374)
*/
UINT16 WINAPI GetSystemPaletteUse16( HDC16 hdc )
{
return SystemPaletteUse;
}
/***********************************************************************
* GetSystemPaletteUse32 [GDI32.223] Gets state of system palette
*
* RETURNS
* Current state of system palette
*/
UINT32 WINAPI GetSystemPaletteUse32(
HDC32 hdc) /* [in] Handle of device context */
{
return SystemPaletteUse;
}
/***********************************************************************
* GetSystemPaletteEntries16 (GDI.375)
*/
UINT16 WINAPI GetSystemPaletteEntries16( HDC16 hdc, UINT16 start, UINT16 count,
LPPALETTEENTRY entries )
{
return GetSystemPaletteEntries32( hdc, start, count, entries );
}
/***********************************************************************
* GetSystemPaletteEntries32 [GDI32.222] Gets range of palette entries
*
* RETURNS
* Success: Number of entries retrieved from palette
* Failure: 0
*/
UINT32 WINAPI GetSystemPaletteEntries32(
HDC32 hdc, /* [in] Handle of device context */
UINT32 start, /* [in] Index of first entry to be retrieved */
UINT32 count, /* [in] Number of entries to be retrieved */
LPPALETTEENTRY entries) /* [out] Array receiving system-palette entries */
{
UINT32 i;
DC *dc;
TRACE(palette, "hdc=%04x,start=%i,count=%i\n", hdc,start,count);
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
if (!entries) return COLOR_GetSystemPaletteSize();
if (start >= dc->w.devCaps->sizePalette)
{
GDI_HEAP_UNLOCK( hdc );
return 0;
}
if (start+count >= dc->w.devCaps->sizePalette)
count = dc->w.devCaps->sizePalette - start;
for (i = 0; i < count; i++)
{
*(COLORREF*)(entries + i) = COLOR_GetSystemPaletteEntry( start + i );
TRACE(palette,"\tidx(%02x) -> RGB(%08lx)\n",
start + i, *(COLORREF*)(entries + i) );
}
GDI_HEAP_UNLOCK( hdc );
return count;
}
/***********************************************************************
* GetNearestPaletteIndex16 (GDI.370)
*/
UINT16 WINAPI GetNearestPaletteIndex16( HPALETTE16 hpalette, COLORREF color )
{
return GetNearestPaletteIndex32( hpalette, color );
}
/***********************************************************************
* GetNearestPaletteIndex32 [GDI32.203] Gets palette index for color
*
* NOTES
* Should index be initialized to CLR_INVALID instead of 0?
*
* RETURNS
* Success: Index of entry in logical palette
* Failure: CLR_INVALID
*/
UINT32 WINAPI GetNearestPaletteIndex32(
HPALETTE32 hpalette, /* [in] Handle of logical color palette */
COLORREF color) /* [in] Color to be matched */
{
PALETTEOBJ* palObj = (PALETTEOBJ*)GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
UINT32 index = 0;
if( palObj )
index = COLOR_PaletteLookupPixel( palObj->logpalette.palPalEntry,
palObj->logpalette.palNumEntries,
NULL, color, FALSE );
TRACE(palette,"(%04x,%06lx): returning %d\n", hpalette, color, index );
GDI_HEAP_UNLOCK( hpalette );
return index;
}
/***********************************************************************
* GetNearestColor16 (GDI.154)
*/
COLORREF WINAPI GetNearestColor16( HDC16 hdc, COLORREF color )
{
return GetNearestColor32( hdc, color );
}
/***********************************************************************
* GetNearestColor32 [GDI32.202] Gets a system color to match
*
* NOTES
* Should this return CLR_INVALID instead of FadeCafe?
*
* RETURNS
* Success: Color from system palette that corresponds to given color
* Failure: CLR_INVALID
*/
COLORREF WINAPI GetNearestColor32(
HDC32 hdc, /* [in] Handle of device context */
COLORREF color) /* [in] Color to be matched */
{
COLORREF nearest = 0xFADECAFE;
DC *dc;
PALETTEOBJ *palObj;
if ( (dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC )) )
{
palObj = (PALETTEOBJ*)
GDI_GetObjPtr( (dc->w.hPalette)? dc->w.hPalette
: STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
if (!palObj) return nearest;
nearest = COLOR_LookupNearestColor( palObj->logpalette.palPalEntry,
palObj->logpalette.palNumEntries, color );
GDI_HEAP_UNLOCK( dc->w.hPalette );
}
TRACE(palette,"(%06lx): returning %06lx\n", color, nearest );
GDI_HEAP_UNLOCK( hdc );
return nearest;
}
/***********************************************************************
* PALETTE_GetObject
*/
int PALETTE_GetObject( PALETTEOBJ * palette, int count, LPSTR buffer )
{
if (count > sizeof(WORD)) count = sizeof(WORD);
memcpy( buffer, &palette->logpalette.palNumEntries, count );
return count;
}
/***********************************************************************
* PALETTE_UnrealizeObject
*/
BOOL32 PALETTE_UnrealizeObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
{
if (palette->mapping)
{
free( palette->mapping );
palette->mapping = NULL;
}
if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
return TRUE;
}
/***********************************************************************
* PALETTE_DeleteObject
*/
BOOL32 PALETTE_DeleteObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
{
free( palette->mapping );
if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
return GDI_FreeObject( hpalette );
}
/***********************************************************************
* GDISelectPalette (GDI.361)
*/
HPALETTE16 WINAPI GDISelectPalette( HDC16 hdc, HPALETTE16 hpal, WORD wBkg)
{
HPALETTE16 prev;
DC *dc;
TRACE(palette, "%04x %04x\n", hdc, hpal );
dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0;
}
prev = dc->w.hPalette;
dc->w.hPalette = hpal;
GDI_HEAP_UNLOCK( hdc );
if (!wBkg) hPrimaryPalette = hpal;
return prev;
}
/***********************************************************************
* GDIRealizePalette (GDI.362)
*/
UINT16 WINAPI GDIRealizePalette( HDC16 hdc )
{
PALETTEOBJ* palPtr;
int realized = 0;
DC* dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0;
}
TRACE(palette, "%04x...\n", hdc );
if( dc && dc->w.hPalette != hLastRealizedPalette )
{
if( dc->w.hPalette == STOCK_DEFAULT_PALETTE )
return RealizeDefaultPalette( hdc );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC );
if (!palPtr) {
FIXME(palette,"invalid selected palette %04x\n",dc->w.hPalette);
return 0;
}
realized = COLOR_SetMapping(palPtr,0,palPtr->logpalette.palNumEntries,
(dc->w.hPalette != hPrimaryPalette) ||
(dc->w.hPalette == STOCK_DEFAULT_PALETTE));
GDI_HEAP_UNLOCK( dc->w.hPalette );
hLastRealizedPalette = dc->w.hPalette;
}
else TRACE(palette, " skipping (hLastRealizedPalette = %04x)\n",
hLastRealizedPalette);
GDI_HEAP_UNLOCK( hdc );
TRACE(palette, " realized %i colors.\n", realized );
return (UINT16)realized;
}
/***********************************************************************
* RealizeDefaultPalette (GDI.365)
*/
UINT16 WINAPI RealizeDefaultPalette( HDC16 hdc )
{
DC *dc;
PALETTEOBJ* palPtr;
int i, index, realized = 0;
TRACE(palette,"%04x\n", hdc );
dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
if (!dc)
{
dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
if (!dc) return 0;
}
if ( dc->w.flags & DC_MEMORY )
{
GDI_HEAP_UNLOCK( hdc );
return 0;
}
hPrimaryPalette = STOCK_DEFAULT_PALETTE;
hLastRealizedPalette = STOCK_DEFAULT_PALETTE;
palPtr = (PALETTEOBJ*)GDI_GetObjPtr(STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
if (!palPtr) return 0;
/* lookup is needed to account for SetSystemPaletteUse() stuff */
for( i = 0; i < 20; i++ )
{
index = COLOR_LookupSystemPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
/* mapping is allocated in COLOR_InitPalette() */
if( index != palPtr->mapping[i] ) { palPtr->mapping[i]=index; realized++; }
}
return realized;
}
/***********************************************************************
* IsDCCurrentPalette (GDI.412)
*/
BOOL16 WINAPI IsDCCurrentPalette(HDC16 hDC)
{
DC* dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
if (dc)
{
GDI_HEAP_UNLOCK( hDC );
return dc->w.hPalette == hPrimaryPalette;
}
return FALSE;
}
/***********************************************************************
* SelectPalette16 (USER.282)
*/
HPALETTE16 WINAPI SelectPalette16( HDC16 hDC, HPALETTE16 hPal,
BOOL16 bForceBackground )
{
return SelectPalette32( hDC, hPal, bForceBackground );
}
/***********************************************************************
* SelectPalette32 [GDI32.300] Selects logical palette into DC
*
* RETURNS
* Success: Previous logical palette
* Failure: NULL
*/
HPALETTE32 WINAPI SelectPalette32(
HDC32 hDC, /* [in] Handle of device context */
HPALETTE32 hPal, /* [in] Handle of logical color palette */
BOOL32 bForceBackground) /* [in] Foreground/background mode */
{
WORD wBkgPalette = 1;
PALETTEOBJ* lpt = (PALETTEOBJ*) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
TRACE(palette,"dc=%04x,pal=%04x,force=%i\n", hDC, hPal, bForceBackground);
if( !lpt ) return 0;
TRACE(palette," entries = %d\n", lpt->logpalette.palNumEntries);
GDI_HEAP_UNLOCK( hPal );
if( hPal != STOCK_DEFAULT_PALETTE )
{
HWND32 hWnd = WindowFromDC32( hDC );
HWND32 hActive = GetActiveWindow32();
/* set primary palette if it's related to current active */
if((!hWnd || (hActive == hWnd || IsChild16(hActive,hWnd))) &&
!bForceBackground )
wBkgPalette = 0;
}
return GDISelectPalette( hDC, hPal, wBkgPalette);
}
/***********************************************************************
* RealizePalette16 (USER.283)
*/
UINT16 WINAPI RealizePalette16( HDC16 hDC )
{
return RealizePalette32( hDC );
}
/***********************************************************************
* RealizePalette32 [GDI32.280] Maps palette entries to system palette
*
* RETURNS
* Success: Number of entries in logical palette
* Failure: GDI_ERROR
*/
UINT32 WINAPI RealizePalette32(
HDC32 hDC) /* [in] Handle of device context */
{
UINT32 realized = GDIRealizePalette( hDC );
/* do not send anything if no colors were changed */
if( IsDCCurrentPalette( hDC ) && realized &&
!(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
{
/* Send palette change notification */
HWND32 hWnd;
if( (hWnd = WindowFromDC32( hDC )) )
SendMessage16( HWND_BROADCAST, WM_PALETTECHANGED, hWnd, 0L);
}
return realized;
}
/**********************************************************************
* UpdateColors16 (GDI.366)
*/
INT16 WINAPI UpdateColors16( HDC16 hDC )
{
HWND32 hWnd = WindowFromDC32( hDC );
/* Docs say that we have to remap current drawable pixel by pixel
* but it would take forever given the speed of XGet/PutPixel.
*/
if (hWnd && !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
InvalidateRect32( hWnd, NULL, FALSE );
return 0x666;
}
/**********************************************************************
* UpdateColors32 [GDI32.359] Remaps current colors to logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL32 WINAPI UpdateColors32(
HDC32 hDC) /* [in] Handle of device context */
{
UpdateColors16( hDC );
return TRUE;
}
/*********************************************************************
* SetMagicColors16 (GDI.606)
*/
VOID WINAPI SetMagicColors16(HDC16 hDC, COLORREF color, UINT16 index)
{
FIXME(palette,"(hDC %04x, color %04x, index %04x): stub\n", hDC, (int)color, index);
}
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