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Implemented CreateHalftonePalette. 

Fixed 3 crashes (1 real, 2 potential).
This commit is contained in:
Juergen Schmied 1999-01-23 12:09:30 +00:00 committed by Alexandre Julliard
parent 628e3e0f01
commit 58b2f0a0a2
1 changed files with 52 additions and 9 deletions
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59
objects/palette.c
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@ -56,12 +56,15 @@ HPALETTE16 PALETTE_Init(void)
hpalette = CreatePalette16( palPtr );
palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (palObj)
{
palObj->mapping = xmalloc( sizeof(int) * 20 );
palObj->mapping = xmalloc( sizeof(int) * 20 );
GDI_HEAP_UNLOCK( hpalette );
GDI_HEAP_UNLOCK( hpalette );
HeapFree( GetProcessHeap(), 0, palPtr );
}
HeapFree( GetProcessHeap(), 0, palPtr );
return hpalette;
}
@ -125,12 +128,49 @@ HPALETTE32 WINAPI CreatePalette32(
* RETURNS
* Success: Handle to logical halftone palette
* Failure: 0
*
* FIXME: not truly tested
*/
HPALETTE32 WINAPI CreateHalftonePalette(
HDC32 hdc) /* [in] Handle to device context */
{
FIXME(palette,"(0x%x): stub\n", hdc);
return (HPALETTE32)NULL;
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;
}
@ -325,6 +365,7 @@ BOOL32 WINAPI AnimatePalette32(
if( hPal != STOCK_DEFAULT_PALETTE )
{
PALETTEOBJ* palPtr = (PALETTEOBJ *)GDI_GetObjPtr(hPal, PALETTE_MAGIC);
if (!palPtr) return FALSE;
if( (StartIndex + NumEntries) <= palPtr->logpalette.palNumEntries )
{
@ -508,6 +549,7 @@ COLORREF WINAPI GetNearestColor32(
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 );
@ -652,6 +694,7 @@ UINT16 WINAPI RealizeDefaultPalette( HDC16 hdc )
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 */