/*
* @implemented
*/
HPALETTE APIENTRY
NtGdiCreatePaletteInternal ( IN LPLOGPALETTE pLogPal, IN UINT cEntries )
{
PPALETTE PalGDI;
HPALETTE NewPalette;
pLogPal->palNumEntries = cEntries;
NewPalette = PALETTE_AllocPalette( PAL_INDEXED,
cEntries,
(PULONG)pLogPal->palPalEntry,
0, 0, 0);
if (NewPalette == NULL)
{
return NULL;
}
PalGDI = (PPALETTE) PALETTE_ShareLockPalette(NewPalette);
if (PalGDI != NULL)
{
PALETTE_ValidateFlags(PalGDI->IndexedColors, PalGDI->NumColors);
PALETTE_ShareUnlockPalette(PalGDI);
}
else
{
/* FIXME - Handle PalGDI == NULL!!!! */
DPRINT1("PalGDI is NULL\n");
}
return NewPalette;
}
UINT APIENTRY
IntAnimatePalette(HPALETTE hPal,
UINT StartIndex,
UINT NumEntries,
CONST PPALETTEENTRY PaletteColors)
{
UINT ret = 0;
if( hPal != NtGdiGetStockObject(DEFAULT_PALETTE) )
{
PPALETTE palPtr;
UINT pal_entries;
HDC hDC;
PDC dc;
PWND Wnd;
const PALETTEENTRY *pptr = PaletteColors;
palPtr = PALETTE_ShareLockPalette(hPal);
if (!palPtr) return FALSE;
pal_entries = palPtr->NumColors;
if (StartIndex >= pal_entries)
{
PALETTE_ShareUnlockPalette(palPtr);
return FALSE;
}
if (StartIndex+NumEntries > pal_entries) NumEntries = pal_entries - StartIndex;
for (NumEntries += StartIndex; StartIndex < NumEntries; StartIndex++, pptr++)
{
/* According to MSDN, only animate PC_RESERVED colours */
if (palPtr->IndexedColors[StartIndex].peFlags & PC_RESERVED)
{
memcpy( &palPtr->IndexedColors[StartIndex], pptr,
sizeof(PALETTEENTRY) );
ret++;
PALETTE_ValidateFlags(&palPtr->IndexedColors[StartIndex], 1);
}
}
PALETTE_ShareUnlockPalette(palPtr);
/* Immediately apply the new palette if current window uses it */
Wnd = UserGetDesktopWindow();
hDC = UserGetWindowDC(Wnd);
dc = DC_LockDc(hDC);
if (NULL != dc)
{
if (dc->dclevel.hpal == hPal)
{
DC_UnlockDc(dc);
IntGdiRealizePalette(hDC);
}
else
DC_UnlockDc(dc);
}
UserReleaseDC(Wnd,hDC, FALSE);
}
return ret;
}
HPALETTE
NTAPI
GreCreatePaletteInternal(
IN LPLOGPALETTE pLogPal,
IN UINT cEntries)
{
HPALETTE hpal = NULL;
PPALETTE ppal;
pLogPal->palNumEntries = cEntries;
ppal = PALETTE_AllocPalWithHandle(PAL_INDEXED,
cEntries,
pLogPal->palPalEntry,
0, 0, 0);
if (ppal != NULL)
{
PALETTE_ValidateFlags(ppal->IndexedColors, ppal->NumColors);
hpal = ppal->BaseObject.hHmgr;
PALETTE_UnlockPalette(ppal);
}
return hpal;
}
/*
* @implemented
*/
HPALETTE
APIENTRY
NtGdiCreatePaletteInternal(
IN LPLOGPALETTE plogpalUser,
IN UINT cEntries)
{
HPALETTE hpal = NULL;
PPALETTE ppal;
ULONG i, cjSize;
ppal = PALETTE_AllocPalWithHandle(PAL_INDEXED, cEntries, NULL, 0, 0, 0);
if (ppal == NULL)
{
return NULL;
}
cjSize = FIELD_OFFSET(LOGPALETTE, palPalEntry[cEntries]);
_SEH2_TRY
{
ProbeForRead(plogpalUser, cjSize, 1);
for (i = 0; i < cEntries; i++)
{
ppal->IndexedColors[i] = plogpalUser->palPalEntry[i];
}
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
GDIOBJ_vDeleteObject(&ppal->BaseObject);
_SEH2_YIELD(return NULL);
}
_SEH2_END;
PALETTE_ValidateFlags(ppal->IndexedColors, cEntries);
hpal = ppal->BaseObject.hHmgr;
PALETTE_UnlockPalette(ppal);
return hpal;
}