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Minor changes to palette code.

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svn path=/trunk/; revision=4072
This commit is contained in:
Eugene Ingerman 2003-01-25 23:01:24 +00:00
parent d4e882e816
commit 9715d6594d
1 changed files with 24 additions and 8 deletions
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32
reactos/subsys/win32k/objects/color.c
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@ -271,8 +271,7 @@ UINT STDCALL W32kGetSystemPaletteUse(HDC hDC)
UNIMPLEMENTED;
}
UINT STDCALL W32kRealizePalette(HDC hDC)
/*
/*!
The RealizePalette function modifies the palette for the device associated with the specified device context. If the device context is a memory DC, the color table for the bitmap selected into the DC is modified. If the device context is a display DC, the physical palette for that device is modified.
A logical palette is a buffer between color-intensive applications and the system, allowing these applications to use as many colors as needed without interfering with colors displayed by other windows.
@ -287,16 +286,19 @@ A logical palette is a buffer between color-intensive applications and the syste
the dc palette.
-- If it is an RGB palette, then an XLATEOBJ is created between the RGB values and the dc palette.
*/
UINT STDCALL W32kRealizePalette(HDC hDC)
{
PPALOBJ palPtr, sysPtr;
PPALGDI palGDI, sysGDI;
int realized = 0;
PDC dc = (PDC)AccessUserObject(hDC);
PDC dc;
HPALETTE systemPalette;
PSURFGDI SurfGDI;
BOOLEAN success;
if (!dc) return 0;
dc = DC_HandleToPtr(hDC);
if (!dc)
return 0;
palPtr = (PPALOBJ)AccessUserObject(dc->w.hPalette);
SurfGDI = (PSURFGDI)AccessInternalObjectFromUserObject(dc->Surface);
@ -381,17 +383,31 @@ BOOL STDCALL W32kResizePalette(HPALETTE hpal,
UNIMPLEMENTED;
}
/*!
* Select logical palette into device context.
* \param hDC handle to the device context
* \param hpal handle to the palette
* \param ForceBackground If this value is FALSE the logical palette will be copied to the device palette only when the applicatioon
* is in the foreground. If this value is TRUE then map the colors in the logical palette to the device
* palette colors in the best way.
* \return old palette
*
* \todo implement ForceBackground == TRUE
*/
HPALETTE STDCALL W32kSelectPalette(HDC hDC,
HPALETTE hpal,
BOOL ForceBackground)
{
PDC dc = (PDC)AccessUserObject(hDC);
PDC dc;
HPALETTE oldPal;
oldPal = dc->w.hPalette;
dc->w.hPalette = hpal;
// FIXME: mark the palette as a [fore\back]ground pal
dc = DC_HandleToPtr(hDC);
if( dc ){
oldPal = dc->w.hPalette;
dc->w.hPalette = hpal;
DC_ReleasePtr( hDC );
}
return oldPal;
}