Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-07-12 23:55:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
reactos/subsystems/win32/win32k/objects/palette.c
Jérôme Gardou 10e3e81202 [WIN32K] 
- IntGdiCreateBitmap : assign a default palette to the bitmap created
  - Use IntCreateBitmap where we already have a bitmap to assign
  - delete all mono bitmaps related hacks in xlateobj implementation, as now all bitmaps should have a palette
Fixes last immediately visible glitches when switching modes

svn path=/branches/reactos-yarotows/; revision=47203
2010-05-14 18:51:48 +00:00

1172 lines
29 KiB
C
Raw Blame History

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: GDI Palette Functions
* FILE: subsys/win32k/eng/palette.c
* PROGRAMERS: Jason Filby
* Timo Kreuzer
*/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
static UINT SystemPaletteUse = SYSPAL_NOSTATIC; /* the program need save the pallete and restore it */
PALETTE gpalRGB, gpalBGR, gpalMono, gpalRGB555, gpalRGB565;
const PALETTEENTRY g_sysPalTemplate[NB_RESERVED_COLORS] =
{
// first 10 entries in the system palette
// red green blue flags
{ 0x00, 0x00, 0x00, PC_SYS_USED },
{ 0x80, 0x00, 0x00, PC_SYS_USED },
{ 0x00, 0x80, 0x00, PC_SYS_USED },
{ 0x80, 0x80, 0x00, PC_SYS_USED },
{ 0x00, 0x00, 0x80, PC_SYS_USED },
{ 0x80, 0x00, 0x80, PC_SYS_USED },
{ 0x00, 0x80, 0x80, PC_SYS_USED },
{ 0xc0, 0xc0, 0xc0, PC_SYS_USED },
{ 0xc0, 0xdc, 0xc0, PC_SYS_USED },
{ 0xa6, 0xca, 0xf0, PC_SYS_USED },
// ... c_min/2 dynamic colorcells
// ... gap (for sparse palettes)
// ... c_min/2 dynamic colorcells
{ 0xff, 0xfb, 0xf0, PC_SYS_USED },
{ 0xa0, 0xa0, 0xa4, PC_SYS_USED },
{ 0x80, 0x80, 0x80, PC_SYS_USED },
{ 0xff, 0x00, 0x00, PC_SYS_USED },
{ 0x00, 0xff, 0x00, PC_SYS_USED },
{ 0xff, 0xff, 0x00, PC_SYS_USED },
{ 0x00, 0x00, 0xff, PC_SYS_USED },
{ 0xff, 0x00, 0xff, PC_SYS_USED },
{ 0x00, 0xff, 0xff, PC_SYS_USED },
{ 0xff, 0xff, 0xff, PC_SYS_USED } // last 10
};
unsigned short GetNumberOfBits(unsigned int dwMask)
{
unsigned short wBits;
for (wBits = 0; dwMask; dwMask = dwMask & (dwMask - 1))
wBits++;
return wBits;
}
// Create the system palette
HPALETTE FASTCALL PALETTE_Init(VOID)
{
int i;
HPALETTE hpalette;
PLOGPALETTE palPtr;
#ifndef NO_MAPPING
PALOBJ *palObj;
#endif
// create default palette (20 system colors)
palPtr = ExAllocatePoolWithTag(PagedPool,
sizeof(LOGPALETTE) +
(NB_RESERVED_COLORS * sizeof(PALETTEENTRY)),
TAG_PALETTE);
if (!palPtr) return FALSE;
palPtr->palVersion = 0x300;
palPtr->palNumEntries = NB_RESERVED_COLORS;
for (i=0; i<NB_RESERVED_COLORS; i++)
{
palPtr->palPalEntry[i].peRed = g_sysPalTemplate[i].peRed;
palPtr->palPalEntry[i].peGreen = g_sysPalTemplate[i].peGreen;
palPtr->palPalEntry[i].peBlue = g_sysPalTemplate[i].peBlue;
palPtr->palPalEntry[i].peFlags = 0;
}
hpalette = NtGdiCreatePaletteInternal(palPtr,NB_RESERVED_COLORS);
ExFreePoolWithTag(palPtr, TAG_PALETTE);
#ifndef NO_MAPPING
palObj = (PALOBJ*)PALETTE_LockPalette(hpalette);
if (palObj)
{
if (!(palObj->mapping = ExAllocatePool(PagedPool, sizeof(int) * 20)))
{
DbgPrint("Win32k: Can not create palette mapping -- out of memory!");
return FALSE;
}
PALETTE_UnlockPalette(palObj);
}
#endif
/* palette_size = visual->map_entries; */
gpalRGB.Mode = PAL_RGB;
gpalRGB.RedMask = RGB(0xFF, 0x00, 0x00);
gpalRGB.GreenMask = RGB(0x00, 0xFF, 0x00);
gpalRGB.BlueMask = RGB(0x00, 0x00, 0xFF);
gpalRGB.BaseObject.ulShareCount = 0;
gpalRGB.BaseObject.BaseFlags = 0 ;
gpalBGR.Mode = PAL_BGR;
gpalBGR.RedMask = RGB(0x00, 0x00, 0xFF);
gpalBGR.GreenMask = RGB(0x00, 0xFF, 0x00);
gpalBGR.BlueMask = RGB(0xFF, 0x00, 0x00);
gpalBGR.BaseObject.ulShareCount = 0;
gpalBGR.BaseObject.BaseFlags = 0 ;
gpalRGB555.Mode = PAL_RGB16_555 | PAL_BITFIELDS;
gpalRGB555.RedMask = 0x7C00;
gpalRGB555.GreenMask = 0x3E0;
gpalRGB555.BlueMask = 0x1F;
gpalRGB555.BaseObject.ulShareCount = 0;
gpalRGB555.BaseObject.BaseFlags = 0 ;
gpalRGB565.Mode = PAL_RGB16_565 | PAL_BITFIELDS;
gpalRGB565.RedMask = 0xF800;
gpalRGB565.GreenMask = 0x7E0;
gpalRGB565.BlueMask = 0x1F;
gpalRGB565.BaseObject.ulShareCount = 0;
gpalRGB565.BaseObject.BaseFlags = 0 ;
memset(&gpalMono, 0, sizeof(PALETTE));
gpalMono.Mode = PAL_MONOCHROME;
gpalMono.BaseObject.ulShareCount = 0;
gpalMono.BaseObject.BaseFlags = 0 ;
return hpalette;
}
VOID FASTCALL PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, INT size)
{
int i = 0;
for (; i<size ; i++)
lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
}
HPALETTE
FASTCALL
PALETTE_AllocPalette(ULONG Mode,
ULONG NumColors,
ULONG *Colors,
ULONG Red,
ULONG Green,
ULONG Blue)
{
HPALETTE NewPalette;
PPALETTE PalGDI;
PalGDI = (PPALETTE)GDIOBJ_AllocObjWithHandle(GDI_OBJECT_TYPE_PALETTE);
if (!PalGDI)
{
return NULL;
}
NewPalette = PalGDI->BaseObject.hHmgr;
PalGDI->Self = NewPalette;
PalGDI->Mode = Mode;
if (NULL != Colors)
{
PalGDI->IndexedColors = ExAllocatePoolWithTag(PagedPool,
sizeof(PALETTEENTRY) * NumColors,
TAG_PALETTE);
if (NULL == PalGDI->IndexedColors)
{
PALETTE_UnlockPalette(PalGDI);
PALETTE_FreePaletteByHandle(NewPalette);
return NULL;
}
RtlCopyMemory(PalGDI->IndexedColors, Colors, sizeof(PALETTEENTRY) * NumColors);
}
if (PAL_INDEXED == Mode)
{
PalGDI->NumColors = NumColors;
}
else if (PAL_BITFIELDS == Mode)
{
PalGDI->RedMask = Red;
PalGDI->GreenMask = Green;
PalGDI->BlueMask = Blue;
if (Red == 0x7c00 && Green == 0x3E0 && Blue == 0x1F)
PalGDI->Mode |= PAL_RGB16_555;
else if (Red == 0xF800 && Green == 0x7E0 && Blue == 0x1F)
PalGDI->Mode |= PAL_RGB16_565;
}
PALETTE_UnlockPalette(PalGDI);
return NewPalette;
}
HPALETTE
FASTCALL
PALETTE_AllocPaletteIndexedRGB(ULONG NumColors,
CONST RGBQUAD *Colors)
{
HPALETTE NewPalette;
PPALETTE PalGDI;
UINT i;
PalGDI = (PPALETTE)GDIOBJ_AllocObjWithHandle(GDI_OBJECT_TYPE_PALETTE);
if (!PalGDI)
{
return NULL;
}
NewPalette = PalGDI->BaseObject.hHmgr;
PalGDI->Self = NewPalette;
PalGDI->Mode = PAL_INDEXED;
PalGDI->IndexedColors = ExAllocatePoolWithTag(PagedPool,
sizeof(PALETTEENTRY) * NumColors,
TAG_PALETTE);
if (NULL == PalGDI->IndexedColors)
{
PALETTE_UnlockPalette(PalGDI);
PALETTE_FreePaletteByHandle(NewPalette);
return NULL;
}
for (i = 0; i < NumColors; i++)
{
PalGDI->IndexedColors[i].peRed = Colors[i].rgbRed;
PalGDI->IndexedColors[i].peGreen = Colors[i].rgbGreen;
PalGDI->IndexedColors[i].peBlue = Colors[i].rgbBlue;
PalGDI->IndexedColors[i].peFlags = 0;
}
PalGDI->NumColors = NumColors;
PALETTE_UnlockPalette(PalGDI);
return NewPalette;
}
BOOL INTERNAL_CALL
PALETTE_Cleanup(PVOID ObjectBody)
{
PPALETTE pPal = (PPALETTE)ObjectBody;
if (NULL != pPal->IndexedColors)
{
ExFreePool(pPal->IndexedColors);
}
return TRUE;
}
INT FASTCALL
PALETTE_GetObject(PPALETTE ppal, INT cbCount, LPLOGBRUSH lpBuffer)
{
if (!lpBuffer)
{
return sizeof(WORD);
}
if ((UINT)cbCount < sizeof(WORD)) return 0;
*((WORD*)lpBuffer) = (WORD)ppal->NumColors;
return sizeof(WORD);
}
ULONG
NTAPI
PALETTE_ulGetNearestPaletteIndex(PALETTE* ppal, ULONG iColor)
{
ULONG ulDiff, ulColorDiff, ulMinimalDiff = 0xFFFFFF;
ULONG i, ulBestIndex = 0;
PALETTEENTRY peColor = *(PPALETTEENTRY)&iColor;
/* Loop all palette entries, break on exact match */
for (i = 0; i < ppal->NumColors && ulMinimalDiff != 0; i++)
{
/* Calculate distance in the color cube */
ulDiff = peColor.peRed - ppal->IndexedColors[i].peRed;
ulColorDiff = ulDiff * ulDiff;
ulDiff = peColor.peGreen - ppal->IndexedColors[i].peGreen;
ulColorDiff += ulDiff * ulDiff;
ulDiff = peColor.peBlue - ppal->IndexedColors[i].peBlue;
ulColorDiff += ulDiff * ulDiff;
/* Check for a better match */
if (ulColorDiff < ulMinimalDiff)
{
ulBestIndex = i;
ulMinimalDiff = ulColorDiff;
}
}
return ulBestIndex;
}
ULONG
NTAPI
PALETTE_ulGetNearestBitFieldsIndex(PALETTE* ppal, ULONG ulColor)
{
ULONG ulNewColor;
// FIXME: HACK, should be stored already
ppal->ulRedShift = CalculateShift(RGB(0xff,0,0), ppal->RedMask);
ppal->ulGreenShift = CalculateShift(RGB(0,0xff,0), ppal->GreenMask);
ppal->ulBlueShift = CalculateShift(RGB(0,0,0xff), ppal->BlueMask);
ulNewColor = _rotl(ulColor, ppal->ulRedShift) & ppal->RedMask;
ulNewColor |= _rotl(ulColor, ppal->ulGreenShift) & ppal->GreenMask;
ulNewColor |= _rotl(ulColor, ppal->ulBlueShift) & ppal->BlueMask;
return ulNewColor;
}
ULONG
NTAPI
PALETTE_ulGetNearestIndex(PALETTE* ppal, ULONG ulColor)
{
if (ppal->Mode & PAL_INDEXED) // use fl & PALINDEXED
return PALETTE_ulGetNearestPaletteIndex(ppal, ulColor);
else
return PALETTE_ulGetNearestBitFieldsIndex(ppal, ulColor);
}
VOID
NTAPI
PALETTE_vGetBitMasks(PPALETTE ppal, PULONG pulColors)
{
ASSERT(pulColors);
if (ppal->Mode & PAL_INDEXED || ppal->Mode & PAL_RGB)
{
pulColors[0] = RGB(0xFF, 0x00, 0x00);
pulColors[1] = RGB(0x00, 0xFF, 0x00);
pulColors[2] = RGB(0x00, 0x00, 0xFF);
}
else if (ppal->Mode & PAL_BGR)
{
pulColors[0] = RGB(0x00, 0x00, 0xFF);
pulColors[1] = RGB(0x00, 0xFF, 0x00);
pulColors[2] = RGB(0xFF, 0x00, 0x00);
}
else if (ppal->Mode & PAL_BITFIELDS)
{
pulColors[0] = ppal->RedMask;
pulColors[1] = ppal->GreenMask;
pulColors[2] = ppal->BlueMask;
}
}
VOID
FASTCALL
ColorCorrection(PPALETTE PalGDI, PPALETTEENTRY PaletteEntry, ULONG Colors)
{
PPDEVOBJ ppdev = (PPDEVOBJ)PalGDI->hPDev;
if (!ppdev) return;
if (ppdev->flFlags & PDEV_GAMMARAMP_TABLE)
{
INT i;
PGAMMARAMP GammaRamp = (PGAMMARAMP)ppdev->pvGammaRamp;
for ( i = 0; i < Colors; i++)
{
PaletteEntry[i].peRed += GammaRamp->Red[i];
PaletteEntry[i].peGreen += GammaRamp->Green[i];
PaletteEntry[i].peBlue += GammaRamp->Blue[i];
}
}
return;
}
/** Display Driver Interface **************************************************/
/*
* @implemented
*/
HPALETTE
APIENTRY
EngCreatePalette(
ULONG Mode,
ULONG NumColors,
ULONG *Colors,
ULONG Red,
ULONG Green,
ULONG Blue)
{
HPALETTE Palette;
Palette = PALETTE_AllocPalette(Mode, NumColors, Colors, Red, Green, Blue);
if (Palette != NULL)
{
GDIOBJ_SetOwnership(Palette, NULL);
}
return Palette;
}
/*
* @implemented
*/
BOOL
APIENTRY
EngDeletePalette(IN HPALETTE Palette)
{
GDIOBJ_SetOwnership(Palette, PsGetCurrentProcess());
return PALETTE_FreePaletteByHandle(Palette);
}
/*
* @implemented
*/
ULONG
APIENTRY
PALOBJ_cGetColors(PALOBJ *PalObj, ULONG Start, ULONG Colors, ULONG *PaletteEntry)
{
PALETTE *PalGDI;
PalGDI = (PALETTE*)PalObj;
/* PalGDI = (PALETTE*)AccessInternalObjectFromUserObject(PalObj); */
if (Start >= PalGDI->NumColors)
return 0;
Colors = min(Colors, PalGDI->NumColors - Start);
/* NOTE: PaletteEntry ULONGs are in the same order as PALETTEENTRY. */
RtlCopyMemory(PaletteEntry, PalGDI->IndexedColors + Start, sizeof(ULONG) * Colors);
if (PalGDI->Mode & PAL_GAMMACORRECTION)
ColorCorrection(PalGDI, (PPALETTEENTRY)PaletteEntry, Colors);
return Colors;
}
/** Systemcall Interface ******************************************************/
/*
* @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_LockPalette(NewPalette);
if (PalGDI != NULL)
{
PALETTE_ValidateFlags(PalGDI->IndexedColors, PalGDI->NumColors);
PALETTE_UnlockPalette(PalGDI);
}
else
{
/* FIXME - Handle PalGDI == NULL!!!! */
DPRINT1("waring PalGDI is NULL \n");
}
return NewPalette;
}
HPALETTE APIENTRY NtGdiCreateHalftonePalette(HDC hDC)
{
int i, r, g, b;
struct {
WORD Version;
WORD NumberOfEntries;
PALETTEENTRY aEntries[256];
} Palette;
Palette.Version = 0x300;
Palette.NumberOfEntries = 256;
if (IntGetSystemPaletteEntries(hDC, 0, 256, Palette.aEntries) == 0)
{
/* from wine, more that 256 color math */
Palette.NumberOfEntries = 20;
for (i = 0; i < Palette.NumberOfEntries; i++)
{
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xff;
Palette.aEntries[i].peBlue=0xff;
Palette.aEntries[i].peFlags=0x00;
}
Palette.aEntries[0].peRed=0x00;
Palette.aEntries[0].peBlue=0x00;
Palette.aEntries[0].peGreen=0x00;
/* the first 6 */
for (i=1; i <= 6; i++)
{
Palette.aEntries[i].peRed=(i%2)?0x80:0;
Palette.aEntries[i].peGreen=(i==2)?0x80:(i==3)?0x80:(i==6)?0x80:0;
Palette.aEntries[i].peBlue=(i>3)?0x80:0;
}
for (i=7; i <= 12; i++)
{
switch(i)
{
case 7:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peBlue=0xc0;
Palette.aEntries[i].peGreen=0xc0;
break;
case 8:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peGreen=0xdc;
Palette.aEntries[i].peBlue=0xc0;
break;
case 9:
Palette.aEntries[i].peRed=0xa6;
Palette.aEntries[i].peGreen=0xca;
Palette.aEntries[i].peBlue=0xf0;
break;
case 10:
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xfb;
Palette.aEntries[i].peBlue=0xf0;
break;
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;
USHORT sysMode, palMode;
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
sysMode = sysGDI->Mode;
palMode = palGDI->Mode;
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 = ExAllocatePool(PagedPool, cEntries * sizeof(PALETTEENTRY));
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)
{
ExFreePool(pEntries);
_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
}
ExFreePool(pEntries);
}
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 */
Reference in a new issue View git blame Copy permalink