+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Win32k subsystem
- * PURPOSE: GDI Color Translation Functions
- * FILE: win32ss/gdi/eng/xlateobj.c
- * PROGRAMER: Timo Kreuzer (timo.kreuzer@reactos.org)
- */
-
-#include <win32k.h>
-
-#define NDEBUG
-#include <debug.h>
-
-_Post_satisfies_(return==iColor)
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateTrivial(
- _In_ PEXLATEOBJ pexlo,
- _In_ ULONG iColor);
-
-/** Globals *******************************************************************/
-
-EXLATEOBJ gexloTrivial = {{0, XO_TRIVIAL, 0, 0, 0, 0}, EXLATEOBJ_iXlateTrivial};
-
-static ULONG giUniqueXlate = 0;
-
-static const BYTE gajXlate5to8[32] =
-{ 0, 8, 16, 25, 33, 41, 49, 58, 66, 74, 82, 90, 99,107,115,123,
- 132,140,148,156,165,173,181,189,197,206,214,222,231,239,247,255};
-
-static const BYTE gajXlate6to8[64] =
-{ 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 45, 49, 52, 57, 61,
- 65, 69, 73, 77, 81, 85, 89, 93, 97,101,105,109,113,117,121,125,
-130,134,138,142,146,150,154,158,162,166,170,174,178,182,186,190,
-194,198,202,207,210,215,219,223,227,231,235,239,243,247,251,255};
-
-
-/** iXlate functions **********************************************************/
-
-_Post_satisfies_(return==iColor)
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateTrivial(
- _In_ PEXLATEOBJ pexlo,
- _In_ ULONG iColor)
-{
- return iColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateToMono(_In_ PEXLATEOBJ pexlo, ULONG iColor)
-{
- return (iColor == pexlo->xlo.pulXlate[0]);
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateTable(PEXLATEOBJ pexlo, ULONG iColor)
-{
- if (iColor >= pexlo->xlo.cEntries) return 0;
- return pexlo->xlo.pulXlate[iColor];
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateRGBtoBGR(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy green */
- iNewColor = iColor & 0xff00ff00;
-
- /* Mask red and blue */
- iColor &= 0x00ff00ff;
-
- /* Shift and copy red and blue */
- iNewColor |= iColor >> 16;
- iNewColor |= iColor << 16;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateRGBto555(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy red */
- iColor <<= 7;
- iNewColor = iColor & 0x7C00;
-
- /* Copy green */
- iColor >>= 13;
- iNewColor |= iColor & 0x3E0;
-
- /* Copy blue */
- iColor >>= 13;
- iNewColor |= iColor & 0x1F;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateBGRto555(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iColor >>= 3;
- iNewColor = iColor & 0x1f;
-
- /* Copy green */
- iColor >>= 3;
- iNewColor |= (iColor & 0x3E0);
-
- /* Copy red */
- iColor >>= 3;
- iNewColor |= (iColor & 0x7C00);
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateRGBto565(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy red */
- iColor <<= 8;
- iNewColor = iColor & 0xF800;
-
- /* Copy green */
- iColor >>= 13;
- iNewColor |= iColor & 0x7E0;
-
- /* Copy green */
- iColor >>= 14;
- iNewColor |= iColor & 0x1F;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateBGRto565(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iColor >>= 3;
- iNewColor = iColor & 0x1f;
-
- /* Copy green */
- iColor >>= 2;
- iNewColor |= (iColor & 0x7E0);
-
- /* Copy red */
- iColor >>= 3;
- iNewColor |= (iColor & 0xF800);
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateRGBtoPal(PEXLATEOBJ pexlo, ULONG iColor)
-{
- return PALETTE_ulGetNearestPaletteIndex(pexlo->ppalDst, iColor);
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate555toRGB(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = gajXlate5to8[iColor & 0x1F] << 16;
-
- /* Copy green */
- iColor >>= 5;
- iNewColor |= gajXlate5to8[iColor & 0x1F] << 8;
-
- /* Copy red */
- iColor >>= 5;
- iNewColor |= gajXlate5to8[iColor & 0x1F];
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate555toBGR(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = gajXlate5to8[iColor & 0x1F];
-
- /* Copy green */
- iColor >>= 5;
- iNewColor |= gajXlate5to8[iColor & 0x1F] << 8;
-
- /* Copy red */
- iColor >>= 5;
- iNewColor |= gajXlate5to8[iColor & 0x1F] << 16;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate555to565(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = iColor & 0x1f;
-
- /* Copy red and green */
- iColor <<= 1;
- iNewColor |= iColor & 0xFFC0;
-
- /* Duplicate highest green bit */
- iColor >>= 5;
- iNewColor |= (iColor & 0x20);
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate555toPal(PEXLATEOBJ pexlo, ULONG iColor)
-{
- iColor = EXLATEOBJ_iXlate555toRGB(pexlo, iColor);
-
- return PALETTE_ulGetNearestPaletteIndex(pexlo->ppalDst, iColor);
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate565to555(PEXLATEOBJ pxlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = iColor & 0x1f;
-
- /* Copy red and green */
- iColor >>= 1;
- iNewColor |= iColor & 0x7FE0;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate565toRGB(PEXLATEOBJ pexlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = gajXlate5to8[iColor & 0x1F] << 16;
-
- /* Copy green */
- iColor >>= 5;
- iNewColor |= gajXlate6to8[iColor & 0x3F] << 8;
-
- /* Copy red */
- iColor >>= 6;
- iNewColor |= gajXlate5to8[iColor & 0x1F];
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate565toBGR(PEXLATEOBJ pexlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- /* Copy blue */
- iNewColor = gajXlate5to8[iColor & 0x1F];
-
- /* Copy green */
- iColor >>= 5;
- iNewColor |= gajXlate6to8[iColor & 0x3F] << 8;
-
- /* Copy blue */
- iColor >>= 6;
- iNewColor |= gajXlate5to8[iColor & 0x1F] << 16;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlate565toPal(EXLATEOBJ *pexlo, ULONG iColor)
-{
- iColor = EXLATEOBJ_iXlate565toRGB(pexlo, iColor);
-
- return PALETTE_ulGetNearestPaletteIndex(pexlo->ppalDst, iColor);
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateShiftAndMask(PEXLATEOBJ pexlo, ULONG iColor)
-{
- ULONG iNewColor;
-
- iNewColor = _rotl(iColor, pexlo->ulRedShift) & pexlo->ulRedMask;
- iNewColor |= _rotl(iColor, pexlo->ulGreenShift) & pexlo->ulGreenMask;
- iNewColor |= _rotl(iColor, pexlo->ulBlueShift) & pexlo->ulBlueMask;
-
- return iNewColor;
-}
-
-_Function_class_(FN_XLATE)
-ULONG
-FASTCALL
-EXLATEOBJ_iXlateBitfieldsToPal(PEXLATEOBJ pexlo, ULONG iColor)
-{
- /* Convert bitfields to RGB */
- iColor = EXLATEOBJ_iXlateShiftAndMask(pexlo, iColor);
-
- /* Return nearest index */
- return PALETTE_ulGetNearestPaletteIndex(pexlo->ppalDst, iColor);
-}
-
-
-/** Private Functions *********************************************************/
-
-VOID
-NTAPI
-EXLATEOBJ_vInitialize(
- _Out_ PEXLATEOBJ pexlo,
- _In_opt_ PALETTE *ppalSrc,
- _In_opt_ PALETTE *ppalDst,
- _In_ COLORREF crSrcBackColor,
- _In_ COLORREF crDstBackColor,
- _In_ COLORREF crDstForeColor)
-{
- ULONG cEntries;
- ULONG i, ulColor;
-
- if (!ppalSrc) ppalSrc = &gpalRGB;
- if (!ppalDst) ppalDst = &gpalRGB;
-
- pexlo->xlo.iUniq = InterlockedIncrement((LONG*)&giUniqueXlate);
- pexlo->xlo.cEntries = 0;
- pexlo->xlo.flXlate = 0;
- pexlo->xlo.pulXlate = pexlo->aulXlate;
- pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
- pexlo->hColorTransform = NULL;
- pexlo->ppalSrc = ppalSrc;
- pexlo->ppalDst = ppalDst;
- pexlo->xlo.iSrcType = (USHORT)ppalSrc->flFlags;
- pexlo->xlo.iDstType = (USHORT)ppalDst->flFlags;
- pexlo->ppalDstDc = &gpalRGB;
-
- if (ppalDst == ppalSrc)
- {
- pexlo->xlo.flXlate |= XO_TRIVIAL;
- return;
- }
-
- /* Check if both of the pallettes are indexed */
- if (!(ppalSrc->flFlags & PAL_INDEXED) || !(ppalDst->flFlags & PAL_INDEXED))
- {
- /* At least one palette is not indexed, calculate shifts/masks */
- ULONG aulMasksSrc[3], aulMasksDst[3];
-
- PALETTE_vGetBitMasks(ppalSrc, aulMasksSrc);
- PALETTE_vGetBitMasks(ppalDst, aulMasksDst);
-
- pexlo->ulRedMask = aulMasksDst[0];
- pexlo->ulGreenMask = aulMasksDst[1];
- pexlo->ulBlueMask = aulMasksDst[2];
-
- pexlo->ulRedShift = CalculateShift(aulMasksSrc[0], aulMasksDst[0]);
- pexlo->ulGreenShift = CalculateShift(aulMasksSrc[1], aulMasksDst[1]);
- pexlo->ulBlueShift = CalculateShift(aulMasksSrc[2], aulMasksDst[2]);
- }
-
- if (ppalSrc->flFlags & PAL_MONOCHROME)
- {
- /* This is a monochrome palette */
- if (!(ppalDst->flFlags & PAL_MONOCHROME))
- {
- /* Mono to color, use the dest DC's fore and back color */
- pexlo->pfnXlate = EXLATEOBJ_iXlateTable;
- pexlo->xlo.flXlate |= XO_TABLE;
- pexlo->xlo.cEntries = 2;
- pexlo->xlo.pulXlate[0] =
- PALETTE_ulGetNearestIndex(ppalDst, crDstForeColor);
- pexlo->xlo.pulXlate[1] =
- PALETTE_ulGetNearestIndex(ppalDst, crDstBackColor);
- }
- }
- else if (ppalDst->flFlags & PAL_MONOCHROME)
- {
- pexlo->pfnXlate = EXLATEOBJ_iXlateToMono;
- pexlo->xlo.flXlate |= XO_TO_MONO;
- pexlo->xlo.cEntries = 1;
-
- if (ppalSrc->flFlags & PAL_INDEXED)
- {
- pexlo->aulXlate[0] =
- PALETTE_ulGetNearestPaletteIndex(ppalSrc, crSrcBackColor);
- }
- else if (ppalSrc->flFlags & PAL_RGB)
- {
- pexlo->aulXlate[0] = crSrcBackColor;
- }
- else if (ppalSrc->flFlags & PAL_BGR)
- {
- pexlo->aulXlate[0] = RGB(GetBValue(crSrcBackColor),
- GetGValue(crSrcBackColor),
- GetRValue(crSrcBackColor));
- }
- else if (ppalSrc->flFlags & PAL_BITFIELDS)
- {
- PALETTE_vGetBitMasks(ppalSrc, &pexlo->ulRedMask);
- pexlo->ulRedShift = CalculateShift(RGB(0xFF,0,0), pexlo->ulRedMask);
- pexlo->ulGreenShift = CalculateShift(RGB(0,0xFF,0), pexlo->ulGreenMask);
- pexlo->ulBlueShift = CalculateShift(RGB(0,0,0xFF), pexlo->ulBlueMask);
-
- pexlo->aulXlate[0] = EXLATEOBJ_iXlateShiftAndMask(pexlo, crSrcBackColor);
- }
- }
- else if (ppalSrc->flFlags & PAL_INDEXED)
- {
- cEntries = ppalSrc->NumColors;
-
- /* Allocate buffer if needed */
- if (cEntries > 6)
- {
- pexlo->xlo.pulXlate = EngAllocMem(0,
- cEntries * sizeof(ULONG),
- GDITAG_PXLATE);
- if (!pexlo->xlo.pulXlate)
- {
- DPRINT1("Could not allocate pulXlate buffer.\n");
- pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
- pexlo->xlo.flXlate = XO_TRIVIAL;
- return;
- }
- }
-
- pexlo->pfnXlate = EXLATEOBJ_iXlateTable;
- pexlo->xlo.cEntries = cEntries;
- pexlo->xlo.flXlate |= XO_TABLE;
-
- if (ppalDst->flFlags & PAL_INDEXED)
- {
- ULONG cDiff = 0;
-
- for (i = 0; i < cEntries; i++)
- {
- ulColor = RGB(ppalSrc->IndexedColors[i].peRed,
- ppalSrc->IndexedColors[i].peGreen,
- ppalSrc->IndexedColors[i].peBlue);
-
- pexlo->xlo.pulXlate[i] =
- PALETTE_ulGetNearestPaletteIndex(ppalDst, ulColor);
-
- if (pexlo->xlo.pulXlate[i] != i) cDiff++;
- }
-
- /* Check if we have only trivial mappings */
- if (cDiff == 0)
- {
- if (pexlo->xlo.pulXlate != pexlo->aulXlate)
- {
- EngFreeMem(pexlo->xlo.pulXlate);
- pexlo->xlo.pulXlate = pexlo->aulXlate;
- }
- pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
- pexlo->xlo.flXlate = XO_TRIVIAL;
- pexlo->xlo.cEntries = 0;
- return;
- }
- }
- else
- {
- for (i = 0; i < pexlo->xlo.cEntries; i++)
- {
- ulColor = RGB(ppalSrc->IndexedColors[i].peRed,
- ppalSrc->IndexedColors[i].peGreen,
- ppalSrc->IndexedColors[i].peBlue);
- pexlo->xlo.pulXlate[i] = PALETTE_ulGetNearestBitFieldsIndex(ppalDst, ulColor);
- }
- }
- }
- else if (ppalSrc->flFlags & PAL_RGB)
- {
- if (ppalDst->flFlags & PAL_INDEXED)
- pexlo->pfnXlate = EXLATEOBJ_iXlateRGBtoPal;
-
- else if (ppalDst->flFlags & PAL_BGR)
- pexlo->pfnXlate = EXLATEOBJ_iXlateRGBtoBGR;
-
- else if (ppalDst->flFlags & PAL_RGB16_555)
- pexlo->pfnXlate = EXLATEOBJ_iXlateRGBto555;
-
- else if (ppalDst->flFlags & PAL_RGB16_565)
- pexlo->pfnXlate = EXLATEOBJ_iXlateRGBto565;
-
- else if (ppalDst->flFlags & PAL_BITFIELDS)
- pexlo->pfnXlate = EXLATEOBJ_iXlateShiftAndMask;
- }
- else if (ppalSrc->flFlags & PAL_BGR)
- {
- if (ppalDst->flFlags & PAL_INDEXED)
- pexlo->pfnXlate = EXLATEOBJ_iXlateBitfieldsToPal;
-
- else if (ppalDst->flFlags & PAL_RGB)
- /* The inverse function works the same */
- pexlo->pfnXlate = EXLATEOBJ_iXlateRGBtoBGR;
-
- else if (ppalDst->flFlags & PAL_RGB16_555)
- pexlo->pfnXlate = EXLATEOBJ_iXlateBGRto555;
-
- else if (ppalDst->flFlags & PAL_RGB16_565)
- pexlo->pfnXlate = EXLATEOBJ_iXlateBGRto565;
-
- else if (ppalDst->flFlags & PAL_BITFIELDS)
- pexlo->pfnXlate = EXLATEOBJ_iXlateShiftAndMask;
- }
- else if (ppalSrc->flFlags & PAL_RGB16_555)
- {
- if (ppalDst->flFlags & PAL_INDEXED)
- pexlo->pfnXlate = EXLATEOBJ_iXlate555toPal;
-
- else if (ppalDst->flFlags & PAL_RGB)
- pexlo->pfnXlate = EXLATEOBJ_iXlate555toRGB;
-
- else if (ppalDst->flFlags & PAL_BGR)
- pexlo->pfnXlate = EXLATEOBJ_iXlate555toBGR;
-
- else if (ppalDst->flFlags & PAL_RGB16_565)
- pexlo->pfnXlate = EXLATEOBJ_iXlate555to565;
-
- else if (ppalDst->flFlags & PAL_BITFIELDS)
- pexlo->pfnXlate = EXLATEOBJ_iXlateShiftAndMask;
- }
- else if (ppalSrc->flFlags & PAL_RGB16_565)
- {
- if (ppalDst->flFlags & PAL_INDEXED)
- pexlo->pfnXlate = EXLATEOBJ_iXlate565toPal;
-
- else if (ppalDst->flFlags & PAL_RGB)
- pexlo->pfnXlate = EXLATEOBJ_iXlate565toRGB;
-
- else if (ppalDst->flFlags & PAL_BGR)
- pexlo->pfnXlate = EXLATEOBJ_iXlate565toBGR;
-
- else if (ppalDst->flFlags & PAL_RGB16_555)
- pexlo->pfnXlate = EXLATEOBJ_iXlate565to555;
-
- else if (ppalDst->flFlags & PAL_BITFIELDS)
- pexlo->pfnXlate = EXLATEOBJ_iXlateShiftAndMask;
- }
- else if (ppalSrc->flFlags & PAL_BITFIELDS)
- {
- if (ppalDst->flFlags & PAL_INDEXED)
- pexlo->pfnXlate = EXLATEOBJ_iXlateBitfieldsToPal;
- else
- pexlo->pfnXlate = EXLATEOBJ_iXlateShiftAndMask;
- }
-
- /* Check for a trivial shift and mask operation */
- if (pexlo->pfnXlate == EXLATEOBJ_iXlateShiftAndMask &&
- !pexlo->ulRedShift && !pexlo->ulGreenShift && !pexlo->ulBlueShift)
- {
- pexlo->pfnXlate = EXLATEOBJ_iXlateTrivial;
- }
-
- /* Check for trivial xlate */
- if (pexlo->pfnXlate == EXLATEOBJ_iXlateTrivial)
- pexlo->xlo.flXlate = XO_TRIVIAL;
- else
- pexlo->xlo.flXlate &= ~XO_TRIVIAL;
-}
-
-VOID
-NTAPI
-EXLATEOBJ_vInitXlateFromDCs(
- _Out_ EXLATEOBJ* pexlo,
- _In_ PDC pdcSrc,
- _In_ PDC pdcDst)
-{
- PSURFACE psurfDst, psurfSrc;
-
- psurfDst = pdcDst->dclevel.pSurface;
- psurfSrc = pdcSrc->dclevel.pSurface;
-
- /* Normal initialisation. No surface means DEFAULT_BITMAP */
- EXLATEOBJ_vInitialize(pexlo,
- psurfSrc ? psurfSrc->ppal : gppalMono,
- psurfDst ? psurfDst->ppal : gppalMono,
- pdcSrc->pdcattr->crBackgroundClr,
- pdcDst->pdcattr->crBackgroundClr,
- pdcDst->pdcattr->crForegroundClr);
-
- pexlo->ppalDstDc = pdcDst->dclevel.ppal;
-}
-
-VOID NTAPI EXLATEOBJ_vInitSrcMonoXlate(
- PEXLATEOBJ pexlo,
- PPALETTE ppalDst,
- COLORREF crBackgroundClr,
- COLORREF crForegroundClr)
-{
- /* Normal initialisation, with mono palette as source */
- EXLATEOBJ_vInitialize(pexlo,
- gppalMono,
- ppalDst,
- 0,
- crBackgroundClr,
- crForegroundClr);
-}
-
-VOID
-NTAPI
-EXLATEOBJ_vCleanup(
- _Inout_ PEXLATEOBJ pexlo)
-{
- if (pexlo->xlo.pulXlate != pexlo->aulXlate)
- {
- EngFreeMem(pexlo->xlo.pulXlate);
- }
- pexlo->xlo.pulXlate = pexlo->aulXlate;
-}
-
-/** Public DDI Functions ******************************************************/
-
-#undef XLATEOBJ_iXlate
-ULONG
-NTAPI
-XLATEOBJ_iXlate(
- _In_ XLATEOBJ *pxlo,
- _In_ ULONG iColor)
-{
- PEXLATEOBJ pexlo = (PEXLATEOBJ)pxlo;
-
- if (!pxlo)
- return iColor;
-
- /* Call the iXlate function */
- return pexlo->pfnXlate(pexlo, iColor);
-}
-
-ULONG
-NTAPI
-XLATEOBJ_cGetPalette(
- _In_ XLATEOBJ *pxlo,
- _In_ ULONG iPal,
- _In_ ULONG cPal,
- _Out_cap_(cPal) ULONG *pPalOut)
-{
- PEXLATEOBJ pexlo = (PEXLATEOBJ)pxlo;
- PPALETTE ppal;
- ULONG i;
-
- if (!pxlo)
- {
- return 0;
- }
-
- if (iPal > 5)
- {
- DPRINT1("XLATEOBJ_cGetPalette called with wrong iPal: %lu\n", iPal);
- return 0;
- }
-
- /* Get the requested palette */
- if (iPal == XO_DESTDCPALETTE)
- {
- ppal = pexlo->ppalDstDc;
- }
- else if (iPal == XO_SRCPALETTE || iPal == XO_SRCBITFIELDS)
- {
- ppal = pexlo->ppalSrc;
- }
- else
- {
- ppal = pexlo->ppalDst;
- }
-
- /* Verify palette type match */
- if (!ppal ||
- ((iPal == XO_SRCPALETTE || iPal == XO_DESTPALETTE)
- && !(ppal->flFlags & PAL_INDEXED)) ||
- ((iPal == XO_SRCBITFIELDS || iPal == XO_DESTBITFIELDS)
- && !(ppal->flFlags & PAL_BITFIELDS)))
- {
- return 0;
- }
-
- if(!pPalOut)
- {
- return ppal->NumColors;
- }
-
- /* Copy the values into the buffer */
- if (ppal->flFlags & PAL_INDEXED)
- {
- cPal = min(cPal, ppal->NumColors);
- for (i = 0; i < cPal; i++)
- {
- pPalOut[i] = RGB(ppal->IndexedColors[i].peRed,
- ppal->IndexedColors[i].peGreen,
- ppal->IndexedColors[i].peBlue);
- }
- }
- else
- {
- // FIXME: should use the above code
- pPalOut[0] = ppal->RedMask;
- pPalOut[1] = ppal->GreenMask;
- pPalOut[2] = ppal->BlueMask;
- }
-
- return cPal;
-}
-
-HANDLE
-NTAPI
-XLATEOBJ_hGetColorTransform(
- _In_ XLATEOBJ *pxlo)
-{
- PEXLATEOBJ pexlo = (PEXLATEOBJ)pxlo;
- return pexlo->hColorTransform;
-}
-
-PULONG
-NTAPI
-XLATEOBJ_piVector(
- _In_ XLATEOBJ *pxlo)
-{
- if (pxlo->iSrcType == PAL_INDEXED)
- {
- return pxlo->pulXlate;
- }
-
- return NULL;
-}
-
-/* EOF */
projects / reactos.git / blobdiff