mirror of
https://github.com/reactos/reactos.git
synced 2024-11-11 01:04:11 +00:00
1132 lines
28 KiB
C
1132 lines
28 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: GDI Palette Functions
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* FILE: subsys/win32k/eng/palette.c
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* PROGRAMERS: Jason Filby
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* Timo Kreuzer
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*/
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#include <win32k.h>
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#define NDEBUG
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#include <debug.h>
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static UINT SystemPaletteUse = SYSPAL_NOSTATIC; /* the program need save the pallete and restore it */
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PALETTE gpalRGB, gpalBGR, gpalMono;
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const PALETTEENTRY g_sysPalTemplate[NB_RESERVED_COLORS] =
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{
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// first 10 entries in the system palette
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// red green blue flags
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{ 0x00, 0x00, 0x00, PC_SYS_USED },
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{ 0x80, 0x00, 0x00, PC_SYS_USED },
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{ 0x00, 0x80, 0x00, PC_SYS_USED },
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{ 0x80, 0x80, 0x00, PC_SYS_USED },
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{ 0x00, 0x00, 0x80, PC_SYS_USED },
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{ 0x80, 0x00, 0x80, PC_SYS_USED },
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{ 0x00, 0x80, 0x80, PC_SYS_USED },
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{ 0xc0, 0xc0, 0xc0, PC_SYS_USED },
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{ 0xc0, 0xdc, 0xc0, PC_SYS_USED },
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{ 0xa6, 0xca, 0xf0, PC_SYS_USED },
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// ... c_min/2 dynamic colorcells
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// ... gap (for sparse palettes)
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// ... c_min/2 dynamic colorcells
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{ 0xff, 0xfb, 0xf0, PC_SYS_USED },
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{ 0xa0, 0xa0, 0xa4, PC_SYS_USED },
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{ 0x80, 0x80, 0x80, PC_SYS_USED },
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{ 0xff, 0x00, 0x00, PC_SYS_USED },
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{ 0x00, 0xff, 0x00, PC_SYS_USED },
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{ 0xff, 0xff, 0x00, PC_SYS_USED },
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{ 0x00, 0x00, 0xff, PC_SYS_USED },
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{ 0xff, 0x00, 0xff, PC_SYS_USED },
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{ 0x00, 0xff, 0xff, PC_SYS_USED },
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{ 0xff, 0xff, 0xff, PC_SYS_USED } // last 10
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};
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unsigned short GetNumberOfBits(unsigned int dwMask)
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{
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unsigned short wBits;
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for (wBits = 0; dwMask; dwMask = dwMask & (dwMask - 1))
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wBits++;
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return wBits;
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}
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// Create the system palette
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HPALETTE FASTCALL PALETTE_Init(VOID)
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{
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int i;
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HPALETTE hpalette;
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PLOGPALETTE palPtr;
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// create default palette (20 system colors)
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palPtr = ExAllocatePoolWithTag(PagedPool,
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sizeof(LOGPALETTE) +
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(NB_RESERVED_COLORS * sizeof(PALETTEENTRY)),
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TAG_PALETTE);
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if (!palPtr) return FALSE;
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palPtr->palVersion = 0x300;
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palPtr->palNumEntries = NB_RESERVED_COLORS;
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for (i=0; i<NB_RESERVED_COLORS; i++)
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{
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palPtr->palPalEntry[i].peRed = g_sysPalTemplate[i].peRed;
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palPtr->palPalEntry[i].peGreen = g_sysPalTemplate[i].peGreen;
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palPtr->palPalEntry[i].peBlue = g_sysPalTemplate[i].peBlue;
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palPtr->palPalEntry[i].peFlags = 0;
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}
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hpalette = NtGdiCreatePaletteInternal(palPtr,NB_RESERVED_COLORS);
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ExFreePoolWithTag(palPtr, TAG_PALETTE);
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/* palette_size = visual->map_entries; */
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gpalRGB.Mode = PAL_RGB;
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gpalRGB.RedMask = RGB(0xFF, 0x00, 0x00);
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gpalRGB.GreenMask = RGB(0x00, 0xFF, 0x00);
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gpalRGB.BlueMask = RGB(0x00, 0x00, 0xFF);
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gpalBGR.Mode = PAL_BGR;
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gpalBGR.RedMask = RGB(0x00, 0x00, 0xFF);
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gpalBGR.GreenMask = RGB(0x00, 0xFF, 0x00);
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gpalBGR.BlueMask = RGB(0xFF, 0x00, 0x00);
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memset(&gpalMono, 0, sizeof(PALETTE));
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gpalMono.Mode = PAL_MONOCHROME;
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return hpalette;
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}
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VOID FASTCALL PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, INT size)
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{
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int i = 0;
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for (; i<size ; i++)
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lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
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}
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HPALETTE
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FASTCALL
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PALETTE_AllocPalette(ULONG Mode,
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ULONG NumColors,
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ULONG *Colors,
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ULONG Red,
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ULONG Green,
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ULONG Blue)
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{
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HPALETTE NewPalette;
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PPALETTE PalGDI;
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PalGDI = (PPALETTE)GDIOBJ_AllocObjWithHandle(GDI_OBJECT_TYPE_PALETTE);
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if (!PalGDI)
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{
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return NULL;
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}
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NewPalette = PalGDI->BaseObject.hHmgr;
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PalGDI->Self = NewPalette;
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PalGDI->Mode = Mode;
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if (NULL != Colors)
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{
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PalGDI->IndexedColors = ExAllocatePoolWithTag(PagedPool,
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sizeof(PALETTEENTRY) * NumColors,
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TAG_PALETTE);
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if (NULL == PalGDI->IndexedColors)
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{
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PALETTE_UnlockPalette(PalGDI);
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PALETTE_FreePaletteByHandle(NewPalette);
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return NULL;
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}
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RtlCopyMemory(PalGDI->IndexedColors, Colors, sizeof(PALETTEENTRY) * NumColors);
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}
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if (PAL_INDEXED == Mode)
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{
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PalGDI->NumColors = NumColors;
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}
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else if (PAL_BITFIELDS == Mode)
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{
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PalGDI->RedMask = Red;
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PalGDI->GreenMask = Green;
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PalGDI->BlueMask = Blue;
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if (Red == 0x7c00 && Green == 0x3E0 && Blue == 0x1F)
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PalGDI->Mode |= PAL_RGB16_555;
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else if (Red == 0xF800 && Green == 0x7E0 && Blue == 0x1F)
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PalGDI->Mode |= PAL_RGB16_565;
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}
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PALETTE_UnlockPalette(PalGDI);
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return NewPalette;
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}
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HPALETTE
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FASTCALL
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PALETTE_AllocPaletteIndexedRGB(ULONG NumColors,
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CONST RGBQUAD *Colors)
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{
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HPALETTE NewPalette;
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PPALETTE PalGDI;
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UINT i;
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PalGDI = (PPALETTE)GDIOBJ_AllocObjWithHandle(GDI_OBJECT_TYPE_PALETTE);
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if (!PalGDI)
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{
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return NULL;
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}
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NewPalette = PalGDI->BaseObject.hHmgr;
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PalGDI->Self = NewPalette;
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PalGDI->Mode = PAL_INDEXED;
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PalGDI->IndexedColors = ExAllocatePoolWithTag(PagedPool,
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sizeof(PALETTEENTRY) * NumColors,
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TAG_PALETTE);
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if (NULL == PalGDI->IndexedColors)
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{
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PALETTE_UnlockPalette(PalGDI);
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PALETTE_FreePaletteByHandle(NewPalette);
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return NULL;
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}
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for (i = 0; i < NumColors; i++)
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{
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PalGDI->IndexedColors[i].peRed = Colors[i].rgbRed;
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PalGDI->IndexedColors[i].peGreen = Colors[i].rgbGreen;
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PalGDI->IndexedColors[i].peBlue = Colors[i].rgbBlue;
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PalGDI->IndexedColors[i].peFlags = 0;
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}
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PalGDI->NumColors = NumColors;
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PALETTE_UnlockPalette(PalGDI);
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return NewPalette;
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}
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BOOL INTERNAL_CALL
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PALETTE_Cleanup(PVOID ObjectBody)
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{
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PPALETTE pPal = (PPALETTE)ObjectBody;
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if (NULL != pPal->IndexedColors)
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{
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ExFreePoolWithTag(pPal->IndexedColors, TAG_PALETTE);
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}
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return TRUE;
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}
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INT FASTCALL
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PALETTE_GetObject(PPALETTE ppal, INT cbCount, LPLOGBRUSH lpBuffer)
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{
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if (!lpBuffer)
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{
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return sizeof(WORD);
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}
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if ((UINT)cbCount < sizeof(WORD)) return 0;
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*((WORD*)lpBuffer) = (WORD)ppal->NumColors;
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return sizeof(WORD);
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}
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ULONG
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NTAPI
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PALETTE_ulGetNearestPaletteIndex(PALETTE* ppal, ULONG iColor)
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{
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ULONG ulDiff, ulColorDiff, ulMinimalDiff = 0xFFFFFF;
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ULONG i, ulBestIndex = 0;
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PALETTEENTRY peColor = *(PPALETTEENTRY)&iColor;
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/* Loop all palette entries, break on exact match */
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for (i = 0; i < ppal->NumColors && ulMinimalDiff != 0; i++)
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{
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/* Calculate distance in the color cube */
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ulDiff = peColor.peRed - ppal->IndexedColors[i].peRed;
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ulColorDiff = ulDiff * ulDiff;
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ulDiff = peColor.peGreen - ppal->IndexedColors[i].peGreen;
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ulColorDiff += ulDiff * ulDiff;
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ulDiff = peColor.peBlue - ppal->IndexedColors[i].peBlue;
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ulColorDiff += ulDiff * ulDiff;
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/* Check for a better match */
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if (ulColorDiff < ulMinimalDiff)
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{
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ulBestIndex = i;
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ulMinimalDiff = ulColorDiff;
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}
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}
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return ulBestIndex;
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}
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ULONG
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NTAPI
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PALETTE_ulGetNearestBitFieldsIndex(PALETTE* ppal, ULONG ulColor)
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{
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ULONG ulNewColor;
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// FIXME: HACK, should be stored already
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ppal->ulRedShift = CalculateShift(RGB(0xff,0,0), ppal->RedMask);
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ppal->ulGreenShift = CalculateShift(RGB(0,0xff,0), ppal->GreenMask);
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ppal->ulBlueShift = CalculateShift(RGB(0,0,0xff), ppal->BlueMask);
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ulNewColor = _rotl(ulColor, ppal->ulRedShift) & ppal->RedMask;
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ulNewColor |= _rotl(ulColor, ppal->ulGreenShift) & ppal->GreenMask;
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ulNewColor |= _rotl(ulColor, ppal->ulBlueShift) & ppal->BlueMask;
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return ulNewColor;
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}
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ULONG
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NTAPI
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PALETTE_ulGetNearestIndex(PALETTE* ppal, ULONG ulColor)
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{
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if (ppal->Mode & PAL_INDEXED) // use fl & PALINDEXED
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return PALETTE_ulGetNearestPaletteIndex(ppal, ulColor);
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else
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return PALETTE_ulGetNearestBitFieldsIndex(ppal, ulColor);
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}
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VOID
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NTAPI
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PALETTE_vGetBitMasks(PPALETTE ppal, PULONG pulColors)
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{
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ASSERT(pulColors);
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if (ppal->Mode & PAL_INDEXED || ppal->Mode & PAL_RGB)
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{
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pulColors[0] = RGB(0xFF, 0x00, 0x00);
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pulColors[1] = RGB(0x00, 0xFF, 0x00);
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pulColors[2] = RGB(0x00, 0x00, 0xFF);
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}
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else if (ppal->Mode & PAL_BGR)
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{
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pulColors[0] = RGB(0x00, 0x00, 0xFF);
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pulColors[1] = RGB(0x00, 0xFF, 0x00);
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pulColors[2] = RGB(0xFF, 0x00, 0x00);
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}
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else if (ppal->Mode & PAL_BITFIELDS)
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{
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pulColors[0] = ppal->RedMask;
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pulColors[1] = ppal->GreenMask;
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pulColors[2] = ppal->BlueMask;
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}
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}
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VOID
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FASTCALL
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ColorCorrection(PPALETTE PalGDI, PPALETTEENTRY PaletteEntry, ULONG Colors)
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{
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PPDEVOBJ ppdev = (PPDEVOBJ)PalGDI->hPDev;
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if (!ppdev) return;
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if (ppdev->flFlags & PDEV_GAMMARAMP_TABLE)
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{
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INT i;
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PGAMMARAMP GammaRamp = (PGAMMARAMP)ppdev->pvGammaRamp;
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for ( i = 0; i < Colors; i++)
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{
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PaletteEntry[i].peRed += GammaRamp->Red[i];
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PaletteEntry[i].peGreen += GammaRamp->Green[i];
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PaletteEntry[i].peBlue += GammaRamp->Blue[i];
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}
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}
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return;
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}
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/** Display Driver Interface **************************************************/
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/*
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* @implemented
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*/
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HPALETTE
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APIENTRY
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EngCreatePalette(
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ULONG Mode,
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ULONG NumColors,
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ULONG *Colors,
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ULONG Red,
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ULONG Green,
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ULONG Blue)
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{
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HPALETTE Palette;
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Palette = PALETTE_AllocPalette(Mode, NumColors, Colors, Red, Green, Blue);
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if (Palette != NULL)
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{
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GDIOBJ_SetOwnership(Palette, NULL);
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}
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return Palette;
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}
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/*
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* @implemented
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*/
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BOOL
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APIENTRY
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EngDeletePalette(IN HPALETTE Palette)
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{
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GDIOBJ_SetOwnership(Palette, PsGetCurrentProcess());
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return PALETTE_FreePaletteByHandle(Palette);
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}
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/*
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* @implemented
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*/
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ULONG
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APIENTRY
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PALOBJ_cGetColors(PALOBJ *PalObj, ULONG Start, ULONG Colors, ULONG *PaletteEntry)
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{
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PALETTE *PalGDI;
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PalGDI = (PALETTE*)PalObj;
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/* PalGDI = (PALETTE*)AccessInternalObjectFromUserObject(PalObj); */
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if (Start >= PalGDI->NumColors)
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return 0;
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Colors = min(Colors, PalGDI->NumColors - Start);
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/* NOTE: PaletteEntry ULONGs are in the same order as PALETTEENTRY. */
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RtlCopyMemory(PaletteEntry, PalGDI->IndexedColors + Start, sizeof(ULONG) * Colors);
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if (PalGDI->Mode & PAL_GAMMACORRECTION)
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ColorCorrection(PalGDI, (PPALETTEENTRY)PaletteEntry, Colors);
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return Colors;
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}
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/** Systemcall Interface ******************************************************/
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/*
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* @implemented
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*/
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HPALETTE APIENTRY
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NtGdiCreatePaletteInternal ( IN LPLOGPALETTE pLogPal, IN UINT cEntries )
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{
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PPALETTE PalGDI;
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HPALETTE NewPalette;
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pLogPal->palNumEntries = cEntries;
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NewPalette = PALETTE_AllocPalette( PAL_INDEXED,
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cEntries,
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(PULONG)pLogPal->palPalEntry,
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0, 0, 0);
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if (NewPalette == NULL)
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{
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return NULL;
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}
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PalGDI = (PPALETTE) PALETTE_LockPalette(NewPalette);
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if (PalGDI != NULL)
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{
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PALETTE_ValidateFlags(PalGDI->IndexedColors, PalGDI->NumColors);
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PALETTE_UnlockPalette(PalGDI);
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}
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else
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{
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/* FIXME - Handle PalGDI == NULL!!!! */
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DPRINT1("PalGDI is NULL\n");
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}
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return NewPalette;
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}
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HPALETTE APIENTRY NtGdiCreateHalftonePalette(HDC hDC)
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{
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int i, r, g, b;
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struct {
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WORD Version;
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WORD NumberOfEntries;
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PALETTEENTRY aEntries[256];
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} Palette;
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Palette.Version = 0x300;
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Palette.NumberOfEntries = 256;
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if (IntGetSystemPaletteEntries(hDC, 0, 256, Palette.aEntries) == 0)
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{
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/* from wine, more that 256 color math */
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Palette.NumberOfEntries = 20;
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for (i = 0; i < Palette.NumberOfEntries; i++)
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{
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Palette.aEntries[i].peRed=0xff;
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Palette.aEntries[i].peGreen=0xff;
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Palette.aEntries[i].peBlue=0xff;
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Palette.aEntries[i].peFlags=0x00;
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}
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Palette.aEntries[0].peRed=0x00;
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Palette.aEntries[0].peBlue=0x00;
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Palette.aEntries[0].peGreen=0x00;
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/* the first 6 */
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for (i=1; i <= 6; i++)
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{
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Palette.aEntries[i].peRed=(i%2)?0x80:0;
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Palette.aEntries[i].peGreen=(i==2)?0x80:(i==3)?0x80:(i==6)?0x80:0;
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Palette.aEntries[i].peBlue=(i>3)?0x80:0;
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}
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for (i=7; i <= 12; i++)
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{
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switch(i)
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{
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case 7:
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Palette.aEntries[i].peRed=0xc0;
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Palette.aEntries[i].peBlue=0xc0;
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Palette.aEntries[i].peGreen=0xc0;
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break;
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case 8:
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Palette.aEntries[i].peRed=0xc0;
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Palette.aEntries[i].peGreen=0xdc;
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Palette.aEntries[i].peBlue=0xc0;
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break;
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case 9:
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Palette.aEntries[i].peRed=0xa6;
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Palette.aEntries[i].peGreen=0xca;
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Palette.aEntries[i].peBlue=0xf0;
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break;
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case 10:
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Palette.aEntries[i].peRed=0xff;
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Palette.aEntries[i].peGreen=0xfb;
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Palette.aEntries[i].peBlue=0xf0;
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break;
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case 11:
|
|
Palette.aEntries[i].peRed=0xa0;
|
|
Palette.aEntries[i].peGreen=0xa0;
|
|
Palette.aEntries[i].peBlue=0xa4;
|
|
break;
|
|
case 12:
|
|
Palette.aEntries[i].peRed=0x80;
|
|
Palette.aEntries[i].peGreen=0x80;
|
|
Palette.aEntries[i].peBlue=0x80;
|
|
}
|
|
}
|
|
|
|
for (i=13; i <= 18; i++)
|
|
{
|
|
Palette.aEntries[i].peRed=(i%2)?0xff:0;
|
|
Palette.aEntries[i].peGreen=(i==14)?0xff:(i==15)?0xff:(i==18)?0xff:0;
|
|
Palette.aEntries[i].peBlue=(i>15)?0xff:0x00;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* 256 color table */
|
|
for (r = 0; r < 6; r++)
|
|
for (g = 0; g < 6; g++)
|
|
for (b = 0; b < 6; b++)
|
|
{
|
|
i = r + g*6 + b*36 + 10;
|
|
Palette.aEntries[i].peRed = r * 51;
|
|
Palette.aEntries[i].peGreen = g * 51;
|
|
Palette.aEntries[i].peBlue = b * 51;
|
|
}
|
|
|
|
for (i = 216; i < 246; i++)
|
|
{
|
|
int v = (i - 216) << 3;
|
|
Palette.aEntries[i].peRed = v;
|
|
Palette.aEntries[i].peGreen = v;
|
|
Palette.aEntries[i].peBlue = v;
|
|
}
|
|
}
|
|
|
|
return NtGdiCreatePaletteInternal((LOGPALETTE *)&Palette, Palette.NumberOfEntries);
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiResizePalette(
|
|
HPALETTE hpal,
|
|
UINT Entries)
|
|
{
|
|
/* PALOBJ *palPtr = (PALOBJ*)AccessUserObject(hPal);
|
|
UINT cPrevEnt, prevVer;
|
|
INT prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
|
|
XLATEOBJ *XlateObj = NULL;
|
|
|
|
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);
|
|
XlateObj = palPtr->logicalToSystem;
|
|
|
|
if (!(palPtr = GDI_ReallocObject(size, hPal, palPtr))) return FALSE;
|
|
|
|
if(XlateObj)
|
|
{
|
|
XLATEOBJ *NewXlateObj = (int*) HeapReAlloc(GetProcessHeap(), 0, XlateObj, cEntries * sizeof(int));
|
|
if(NewXlateObj == NULL)
|
|
{
|
|
ERR("Can not resize logicalToSystem -- out of memory!");
|
|
GDI_ReleaseObj( hPal );
|
|
return FALSE;
|
|
}
|
|
palPtr->logicalToSystem = NewXlateObj;
|
|
}
|
|
|
|
if(cEntries > cPrevEnt)
|
|
{
|
|
if(XlateObj) memset(palPtr->logicalToSystem + 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_ReleaseObj( hPal );
|
|
return TRUE; */
|
|
|
|
UNIMPLEMENTED;
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiGetColorAdjustment(
|
|
HDC hdc,
|
|
LPCOLORADJUSTMENT pca)
|
|
{
|
|
UNIMPLEMENTED;
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiSetColorAdjustment(
|
|
HDC hdc,
|
|
LPCOLORADJUSTMENT pca)
|
|
{
|
|
UNIMPLEMENTED;
|
|
return FALSE;
|
|
}
|
|
|
|
COLORREF APIENTRY NtGdiGetNearestColor(HDC hDC, COLORREF Color)
|
|
{
|
|
COLORREF nearest = CLR_INVALID;
|
|
PDC dc;
|
|
PPALETTE palGDI;
|
|
LONG RBits, GBits, BBits;
|
|
|
|
dc = DC_LockDc(hDC);
|
|
if (NULL != dc)
|
|
{
|
|
HPALETTE hpal = dc->dclevel.hpal;
|
|
palGDI = (PPALETTE) PALETTE_LockPalette(hpal);
|
|
if (!palGDI)
|
|
{
|
|
DC_UnlockDc(dc);
|
|
return nearest;
|
|
}
|
|
|
|
if (palGDI->Mode & PAL_INDEXED)
|
|
{
|
|
ULONG index;
|
|
index = PALETTE_ulGetNearestPaletteIndex(palGDI, Color);
|
|
nearest = PALETTE_ulGetRGBColorFromIndex(palGDI, index);
|
|
}
|
|
else if (palGDI->Mode & PAL_RGB || palGDI->Mode & PAL_BGR)
|
|
{
|
|
nearest = Color;
|
|
}
|
|
else if (palGDI->Mode & PAL_BITFIELDS)
|
|
{
|
|
RBits = 8 - GetNumberOfBits(palGDI->RedMask);
|
|
GBits = 8 - GetNumberOfBits(palGDI->GreenMask);
|
|
BBits = 8 - GetNumberOfBits(palGDI->BlueMask);
|
|
nearest = RGB(
|
|
(GetRValue(Color) >> RBits) << RBits,
|
|
(GetGValue(Color) >> GBits) << GBits,
|
|
(GetBValue(Color) >> BBits) << BBits);
|
|
}
|
|
PALETTE_UnlockPalette(palGDI);
|
|
DC_UnlockDc(dc);
|
|
}
|
|
|
|
return nearest;
|
|
}
|
|
|
|
UINT
|
|
APIENTRY
|
|
NtGdiGetNearestPaletteIndex(
|
|
HPALETTE hpal,
|
|
COLORREF crColor)
|
|
{
|
|
PPALETTE ppal = (PPALETTE) PALETTE_LockPalette(hpal);
|
|
UINT index = 0;
|
|
|
|
if (ppal)
|
|
{
|
|
if (ppal->Mode & PAL_INDEXED)
|
|
{
|
|
/* Return closest match for the given RGB color */
|
|
index = PALETTE_ulGetNearestPaletteIndex(ppal, crColor);
|
|
}
|
|
// else SetLastError ?
|
|
PALETTE_UnlockPalette(ppal);
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
UINT
|
|
FASTCALL
|
|
IntGdiRealizePalette(HDC hDC)
|
|
{
|
|
/*
|
|
* This function doesn't do any real work now and there's plenty
|
|
* of bugs in it.
|
|
*/
|
|
|
|
PPALETTE palGDI, sysGDI;
|
|
int realized = 0;
|
|
PDC dc;
|
|
HPALETTE systemPalette;
|
|
|
|
dc = DC_LockDc(hDC);
|
|
if (!dc) return 0;
|
|
|
|
systemPalette = NtGdiGetStockObject(DEFAULT_PALETTE);
|
|
palGDI = PALETTE_LockPalette(dc->dclevel.hpal);
|
|
|
|
if (palGDI == NULL)
|
|
{
|
|
DPRINT1("IntGdiRealizePalette(): palGDI is NULL, exiting\n");
|
|
DC_UnlockDc(dc);
|
|
return 0;
|
|
}
|
|
|
|
sysGDI = PALETTE_LockPalette(systemPalette);
|
|
|
|
if (sysGDI == NULL)
|
|
{
|
|
DPRINT1("IntGdiRealizePalette(): sysGDI is NULL, exiting\n");
|
|
PALETTE_UnlockPalette(palGDI);
|
|
DC_UnlockDc(dc);
|
|
return 0;
|
|
}
|
|
|
|
// 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.
|
|
if(dc->dctype == DC_TYPE_MEMORY)
|
|
{
|
|
// Memory managed DC
|
|
DPRINT1("RealizePalette unimplemented for memory managed DCs\n");
|
|
} else
|
|
{
|
|
DPRINT1("RealizePalette unimplemented for device DCs\n");
|
|
}
|
|
|
|
// need to pass this to IntEngCreateXlate with palettes unlocked
|
|
PALETTE_UnlockPalette(sysGDI);
|
|
PALETTE_UnlockPalette(palGDI);
|
|
|
|
DC_UnlockDc(dc);
|
|
|
|
return realized;
|
|
}
|
|
|
|
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;
|
|
PWINDOW_OBJECT Wnd;
|
|
const PALETTEENTRY *pptr = PaletteColors;
|
|
|
|
palPtr = (PPALETTE)PALETTE_LockPalette(hPal);
|
|
if (!palPtr) return FALSE;
|
|
|
|
pal_entries = palPtr->NumColors;
|
|
if (StartIndex >= pal_entries)
|
|
{
|
|
PALETTE_UnlockPalette(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_UnlockPalette(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;
|
|
}
|
|
|
|
UINT APIENTRY
|
|
IntGetPaletteEntries(
|
|
HPALETTE hpal,
|
|
UINT StartIndex,
|
|
UINT Entries,
|
|
LPPALETTEENTRY pe)
|
|
{
|
|
PPALETTE palGDI;
|
|
UINT numEntries;
|
|
|
|
palGDI = (PPALETTE) PALETTE_LockPalette(hpal);
|
|
if (NULL == palGDI)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
numEntries = palGDI->NumColors;
|
|
if (NULL != pe)
|
|
{
|
|
if (numEntries < StartIndex + Entries)
|
|
{
|
|
Entries = numEntries - StartIndex;
|
|
}
|
|
if (numEntries <= StartIndex)
|
|
{
|
|
PALETTE_UnlockPalette(palGDI);
|
|
return 0;
|
|
}
|
|
memcpy(pe, palGDI->IndexedColors + StartIndex, Entries * sizeof(PALETTEENTRY));
|
|
}
|
|
else
|
|
{
|
|
Entries = numEntries;
|
|
}
|
|
|
|
PALETTE_UnlockPalette(palGDI);
|
|
return Entries;
|
|
}
|
|
|
|
UINT APIENTRY
|
|
IntGetSystemPaletteEntries(HDC hDC,
|
|
UINT StartIndex,
|
|
UINT Entries,
|
|
LPPALETTEENTRY pe)
|
|
{
|
|
PPALETTE palGDI = NULL;
|
|
PDC dc = NULL;
|
|
UINT EntriesSize = 0;
|
|
UINT Ret = 0;
|
|
|
|
if (Entries == 0)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
if (pe != NULL)
|
|
{
|
|
EntriesSize = Entries * sizeof(pe[0]);
|
|
if (Entries != EntriesSize / sizeof(pe[0]))
|
|
{
|
|
/* Integer overflow! */
|
|
SetLastWin32Error(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!(dc = DC_LockDc(hDC)))
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_HANDLE);
|
|
return 0;
|
|
}
|
|
|
|
palGDI = PALETTE_LockPalette(dc->dclevel.hpal);
|
|
if (palGDI != NULL)
|
|
{
|
|
if (pe != NULL)
|
|
{
|
|
if (StartIndex >= palGDI->NumColors)
|
|
Entries = 0;
|
|
else if (Entries > palGDI->NumColors - StartIndex)
|
|
Entries = palGDI->NumColors - StartIndex;
|
|
|
|
memcpy(pe,
|
|
palGDI->IndexedColors + StartIndex,
|
|
Entries * sizeof(pe[0]));
|
|
|
|
Ret = Entries;
|
|
}
|
|
else
|
|
{
|
|
Ret = dc->ppdev->gdiinfo.ulNumPalReg;
|
|
}
|
|
}
|
|
|
|
if (palGDI != NULL)
|
|
PALETTE_UnlockPalette(palGDI);
|
|
|
|
if (dc != NULL)
|
|
DC_UnlockDc(dc);
|
|
|
|
return Ret;
|
|
}
|
|
|
|
UINT
|
|
APIENTRY
|
|
IntSetPaletteEntries(
|
|
HPALETTE hpal,
|
|
UINT Start,
|
|
UINT Entries,
|
|
CONST LPPALETTEENTRY pe)
|
|
{
|
|
PPALETTE palGDI;
|
|
WORD numEntries;
|
|
|
|
if ((UINT)hpal & GDI_HANDLE_STOCK_MASK)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
palGDI = PALETTE_LockPalette(hpal);
|
|
if (!palGDI) return 0;
|
|
|
|
numEntries = palGDI->NumColors;
|
|
if (Start >= numEntries)
|
|
{
|
|
PALETTE_UnlockPalette(palGDI);
|
|
return 0;
|
|
}
|
|
if (numEntries < Start + Entries)
|
|
{
|
|
Entries = numEntries - Start;
|
|
}
|
|
memcpy(palGDI->IndexedColors + Start, pe, Entries * sizeof(PALETTEENTRY));
|
|
PALETTE_UnlockPalette(palGDI);
|
|
|
|
return Entries;
|
|
}
|
|
|
|
W32KAPI
|
|
LONG
|
|
APIENTRY
|
|
NtGdiDoPalette(
|
|
IN HGDIOBJ hObj,
|
|
IN WORD iStart,
|
|
IN WORD cEntries,
|
|
IN LPVOID pUnsafeEntries,
|
|
IN DWORD iFunc,
|
|
IN BOOL bInbound)
|
|
{
|
|
LONG ret;
|
|
LPVOID pEntries = NULL;
|
|
|
|
/* FIXME: Handle bInbound correctly */
|
|
|
|
if (bInbound &&
|
|
(pUnsafeEntries == NULL || cEntries == 0))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (pUnsafeEntries)
|
|
{
|
|
pEntries = ExAllocatePoolWithTag(PagedPool, cEntries * sizeof(PALETTEENTRY), TAG_PALETTE);
|
|
if (!pEntries)
|
|
return 0;
|
|
if (bInbound)
|
|
{
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForRead(pUnsafeEntries, cEntries * sizeof(PALETTEENTRY), 1);
|
|
memcpy(pEntries, pUnsafeEntries, cEntries * sizeof(PALETTEENTRY));
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
ExFreePoolWithTag(pEntries, TAG_PALETTE);
|
|
_SEH2_YIELD(return 0);
|
|
}
|
|
_SEH2_END
|
|
}
|
|
}
|
|
|
|
ret = 0;
|
|
switch(iFunc)
|
|
{
|
|
case GdiPalAnimate:
|
|
if (pEntries)
|
|
ret = IntAnimatePalette((HPALETTE)hObj, iStart, cEntries, (CONST PPALETTEENTRY)pEntries);
|
|
break;
|
|
|
|
case GdiPalSetEntries:
|
|
if (pEntries)
|
|
ret = IntSetPaletteEntries((HPALETTE)hObj, iStart, cEntries, (CONST LPPALETTEENTRY)pEntries);
|
|
break;
|
|
|
|
case GdiPalGetEntries:
|
|
ret = IntGetPaletteEntries((HPALETTE)hObj, iStart, cEntries, (LPPALETTEENTRY)pEntries);
|
|
break;
|
|
|
|
case GdiPalGetSystemEntries:
|
|
ret = IntGetSystemPaletteEntries((HDC)hObj, iStart, cEntries, (LPPALETTEENTRY)pEntries);
|
|
break;
|
|
|
|
case GdiPalSetColorTable:
|
|
if (pEntries)
|
|
ret = IntSetDIBColorTable((HDC)hObj, iStart, cEntries, (RGBQUAD*)pEntries);
|
|
break;
|
|
|
|
case GdiPalGetColorTable:
|
|
if (pEntries)
|
|
ret = IntGetDIBColorTable((HDC)hObj, iStart, cEntries, (RGBQUAD*)pEntries);
|
|
break;
|
|
}
|
|
|
|
if (pEntries)
|
|
{
|
|
if (!bInbound)
|
|
{
|
|
_SEH2_TRY
|
|
{
|
|
ProbeForWrite(pUnsafeEntries, cEntries * sizeof(PALETTEENTRY), 1);
|
|
memcpy(pUnsafeEntries, pEntries, cEntries * sizeof(PALETTEENTRY));
|
|
}
|
|
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
ret = 0;
|
|
}
|
|
_SEH2_END
|
|
}
|
|
ExFreePoolWithTag(pEntries, TAG_PALETTE);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
UINT APIENTRY
|
|
NtGdiSetSystemPaletteUse(HDC hDC, UINT Usage)
|
|
{
|
|
UINT old = SystemPaletteUse;
|
|
|
|
/* Device doesn't support colour palettes */
|
|
if (!(NtGdiGetDeviceCaps(hDC, RASTERCAPS) & RC_PALETTE)) {
|
|
return SYSPAL_ERROR;
|
|
}
|
|
|
|
switch (Usage)
|
|
{
|
|
case SYSPAL_NOSTATIC:
|
|
case SYSPAL_NOSTATIC256:
|
|
case SYSPAL_STATIC:
|
|
SystemPaletteUse = Usage;
|
|
break;
|
|
|
|
default:
|
|
old=SYSPAL_ERROR;
|
|
break;
|
|
}
|
|
|
|
return old;
|
|
}
|
|
|
|
UINT
|
|
APIENTRY
|
|
NtGdiGetSystemPaletteUse(HDC hDC)
|
|
{
|
|
return SystemPaletteUse;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiUpdateColors(HDC hDC)
|
|
{
|
|
PWINDOW_OBJECT Wnd;
|
|
BOOL calledFromUser, ret;
|
|
USER_REFERENCE_ENTRY Ref;
|
|
|
|
calledFromUser = UserIsEntered();
|
|
|
|
if (!calledFromUser){
|
|
UserEnterExclusive();
|
|
}
|
|
|
|
Wnd = UserGetWindowObject(IntWindowFromDC(hDC));
|
|
if (Wnd == NULL)
|
|
{
|
|
SetLastWin32Error(ERROR_INVALID_WINDOW_HANDLE);
|
|
|
|
if (!calledFromUser){
|
|
UserLeave();
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
UserRefObjectCo(Wnd, &Ref);
|
|
ret = co_UserRedrawWindow(Wnd, NULL, 0, RDW_INVALIDATE);
|
|
UserDerefObjectCo(Wnd);
|
|
|
|
if (!calledFromUser){
|
|
UserLeave();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
BOOL
|
|
APIENTRY
|
|
NtGdiUnrealizeObject(HGDIOBJ hgdiobj)
|
|
{
|
|
BOOL Ret = FALSE;
|
|
PPALETTE palGDI;
|
|
|
|
if ( !hgdiobj ||
|
|
((UINT)hgdiobj & GDI_HANDLE_STOCK_MASK) ||
|
|
!GDI_HANDLE_IS_TYPE(hgdiobj, GDI_OBJECT_TYPE_PALETTE) )
|
|
return Ret;
|
|
|
|
palGDI = PALETTE_LockPalette(hgdiobj);
|
|
if (!palGDI) return FALSE;
|
|
|
|
// FIXME!!
|
|
// Need to do something!!!
|
|
// Zero out Current and Old Translated pointers?
|
|
//
|
|
Ret = TRUE;
|
|
PALETTE_UnlockPalette(palGDI);
|
|
return Ret;
|
|
}
|
|
|
|
|
|
/* EOF */
|