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windows-server-2003/windows/core/ntgdi/gre/umpdeng.cxx

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/******************************Module*Header*******************************\
* Module Name: umpdeng.c
* This file contains stubs for calls made by umpdeng.c from gdi32.dll
*
* Created: 8/5/97
* Author: Lingyun Wang [lingyunw]
*
* Copyright (c) 1997-1999 Microsoft Corporation
*
\**************************************************************************/
#include "precomp.hxx"
#if !defined(_GDIPLUS_)
//
// Macro for extracting the topmost UMPDOBJS structure
// associated with the current thread.
//
// Put the following line at the beginning of each NtGdi...
// function (after all other local variable declarations):
//
// EXTRACT_THREAD_UMPDOBJS retVal;
//
// where retVal is the error return value. If the function doesn't return
// any value, simply omit the retVal.
//
#define EXTRACT_THREAD_UMPDOBJS \
PUMPDOBJ pUMObjs = (PUMPDOBJ) W32GetCurrentThread()->pUMPDObj; \
if (pUMObjs) \
pUMObjs->vSetFlags(UMPDOBJ_ENGCALL); \
else \
return
#define FIXUP_THREAD_UMPDOBJS \
if (pUMObjs) \
pUMObjs->vClearFlags(UMPDOBJ_ENGCALL);
//
// determine whether a BRUSHOBJ is a pattern brush
//
#define ISPATBRUSH(_pbo) ((_pbo) && (_pbo)->iSolidColor == 0xffffffff)
#define MIXNEEDMASK(_mix) (((_mix) & 0xf) != (((_mix) >> 8) & 0xf))
//
// Map a user-mode BRUSHOBJ to its kernel-mode counterpart
//
#define MAP_UM_BRUSHOBJ(pUMObjs, pbo, pboTemp) \
{ \
BRUSHOBJ *tempVar; \
tempVar = (pUMObjs)->GetDDIOBJ(pbo); \
pbo = tempVar ? tempVar : CaptureAndFakeBRUSHOBJ(pbo, pboTemp); \
}
inline BOOL
PROBEDISPATBRUSH(BRUSHOBJ *pbo)
{
BRUSHOBJ tmpBo;
BOOL bRet = FALSE;
__try
{
tmpBo = ProbeAndReadStructure(pbo, BRUSHOBJ);
if (ISPATBRUSH(&tmpBo))
bRet = TRUE;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
return bRet;
}
//
// "Manufacture" a kernel-mode BRUSHOBJ structure using
// the user-mode BRUSHOBJ as template
//
BRUSHOBJ *
CaptureAndFakeBRUSHOBJ(
BRUSHOBJ *pboUm,
BRUSHOBJ *pboKm
)
{
if (pboUm)
{
__try
{
// Copy user-mode BRUSHOBJ structure into kernel-mode memory
*pboKm = ProbeAndReadStructure(pboUm, BRUSHOBJ);
// Succeed only if BRUSHOBJ represents a solid color brush
if (!ISPATBRUSH(pboKm))
pboKm->pvRbrush = NULL;
else
pboKm = NULL;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
pboKm = NULL;
}
}
else
pboKm = NULL;
return pboKm;
}
//
// Capture a user-mode CLIPOBJ that orignated from EngCreateClip
//
CLIPOBJ *
CaptureAndMungeCLIPOBJ(
CLIPOBJ *pcoUm,
CLIPOBJ *pcoKm,
SIZEL *szLimit
)
{
CLIPOBJ co;
//
// Capture user-mode CLIPOBJ structure into a temporary buffer
//
if (pcoUm)
{
__try
{
co = ProbeAndReadStructure(pcoUm, CLIPOBJ);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
pcoKm = NULL;
}
//
// Munge the relevant fields in kernel-mode CLIPOBJ
//
if (pcoKm)
{
switch (co.iDComplexity)
{
case DC_RECT:
if (szLimit)
{
co.rclBounds.left = max(0, co.rclBounds.left);
co.rclBounds.top = max(0, co.rclBounds.top);
co.rclBounds.right = min(szLimit->cx, co.rclBounds.right);
co.rclBounds.bottom = min(szLimit->cy, co.rclBounds.bottom);
}
pcoKm->rclBounds = co.rclBounds;
// fall through
case DC_TRIVIAL:
pcoKm->iDComplexity = co.iDComplexity;
break;
default:
WARNING("User-mode CLIPOBJ is not DC_TRIVIAL or DC_RECT\n");
pcoKm = NULL;
break;
}
}
}
else
{
ASSERTGDI(pcoKm == NULL, "CaptureAndMungeCLIPOBJ: invalid pcoKm\n");
}
return pcoKm;
}
/******************************Public*Routine******************************\
* GetSTROBJGlyphMode
*
* helper function to determine the Glyphmode based on strobj
*
* History:
* 26-Sept-1997 -by- Lingyun Wang [lingyunw]
* Wrote it.
\**************************************************************************/
__inline
ULONG GetSTROBJGlyphMode (STROBJ *pstro)
{
return (((ESTROBJ*)pstro)->prfo->prfnt->ulContent);
}
__inline
BOOL bOrder (RECTL *prcl)
{
return ((prcl->left < prcl->right) && (prcl->top < prcl->bottom));
}
/******************************Public*Routine******************************\
* helper functions to copy user memory
*
* CaptureRECTL CapturePOINTL CapturePOINTFIX
* CaptureLINEATTRS CaptureCOLORADJUSTMENT
*
* Note: prclFrom points to the captured rect on the way back
* Note: Needs to be called within try/except
*
* History:
* 26-Sept-1997 -by- Lingyun Wang [lingyunw]
* Wrote it.
\**************************************************************************/
__inline
VOID CaptureRECTL (RECTL **pprclFrom, RECTL *prclTo)
{
if (*pprclFrom)
{
*prclTo = ProbeAndReadStructure(*pprclFrom,RECTL);
//
// repoint pprclFrom to prclTo
//
*pprclFrom = prclTo;
}
return;
}
__inline
VOID CapturePOINTL (POINTL **ppptlFrom, POINTL *pptlTo)
{
if (*ppptlFrom)
{
*pptlTo = ProbeAndReadStructure(*ppptlFrom,POINTL);
*ppptlFrom = pptlTo;
}
return;
}
__inline
VOID CapturePOINTFIX (POINTFIX **ppptfxFrom, POINTFIX *pptfxTo)
{
if (*ppptfxFrom)
{
*pptfxTo = ProbeAndReadStructure(*ppptfxFrom,POINTFIX);
*ppptfxFrom = pptfxTo;
}
return;
}
//
// the calling routine needs to free pStyle
//
// Note: plineFrom will be changed to plineTo upon returning from this routine
// so to save some changes into the lower level calls
//
__inline
BOOL bCaptureLINEATTRS (LINEATTRS **pplineFrom, LINEATTRS *plineTo)
{
BOOL bRet = TRUE;
if (*pplineFrom)
{
PFLOAT_LONG pstyle = NULL;
__try
{
*plineTo = ProbeAndReadStructure(*pplineFrom,LINEATTRS);
if (plineTo->pstyle)
{
if (BALLOC_OVERFLOW1(plineTo->cstyle, FLOAT_LONG))
return FALSE;
ProbeForRead(plineTo->pstyle, plineTo->cstyle*sizeof(FLOAT_LONG), sizeof(BYTE));
pstyle = (PFLOAT_LONG)PALLOCNOZ(plineTo->cstyle*sizeof(FLOAT_LONG), UMPD_MEMORY_TAG);
if (!pstyle)
{
//
// so we won't free it later
//
plineTo->pstyle = NULL;
bRet = FALSE;
}
else
{
RtlCopyMemory(pstyle, plineTo->pstyle, plineTo->cstyle*sizeof(FLOAT_LONG));
plineTo->pstyle = pstyle;
}
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("bCaptureLINEATTRS -- exception in try/except \n");
if (pstyle)
VFREEMEM(pstyle);
bRet = FALSE;
}
*pplineFrom = plineTo;
}
return bRet;
}
__inline
VOID CaptureCOLORADJUSTMENT (COLORADJUSTMENT **ppcaFrom, COLORADJUSTMENT *pcaTo)
{
if (*ppcaFrom)
{
*pcaTo = ProbeAndReadStructure(*ppcaFrom,COLORADJUSTMENT);
*ppcaFrom = pcaTo;
}
return;
}
__inline
VOID CaptureDWORD (DWORD **ppdwFrom, DWORD *pdwTo)
{
if (*ppdwFrom)
{
*pdwTo = ProbeAndReadStructure(*ppdwFrom,DWORD);
//
// repoint pprclFrom to prclTo
//
*ppdwFrom = pdwTo;
}
return;
}
__inline
VOID CaptureBits (PVOID pv, PVOID pvTmp, ULONG cj)
{
if (pv && pvTmp)
{
ProbeAndReadBuffer(pv, pvTmp, cj);
}
return;
}
/******************************Public*Routine******************************\
* bSecureBits bSafeReadBits bSafeCopyBits
*
* helper functions to secure or copy user memory
* These donot need to be called from within try/except
*
* History:
* 26-Sept-1997 -by- Lingyun Wang [lingyunw]
* Wrote it.
\**************************************************************************/
__inline
BOOL bSecureBits (PVOID pv, ULONG cj, HANDLE *phSecure)
{
BOOL bRet = TRUE;
*phSecure = 0;
if (pv)
{
__try
{
ProbeForRead(pv,cj,sizeof(BYTE));
*phSecure = MmSecureVirtualMemory(pv, cj, PAGE_READONLY);
if (*phSecure == 0)
{
bRet = FALSE;
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("bSecureBits -- exception in try/except \n");
bRet = FALSE;
}
}
return (bRet);
}
__inline
BOOL bSafeCopyBits (PVOID pv, PVOID pvTmp, ULONG cj)
{
BOOL bRet = TRUE;
if (pv && pvTmp)
{
__try
{
ProbeAndWriteBuffer(pv, pvTmp, cj);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("fail in try/except to write into buffer\n");
bRet = FALSE;
}
}
return bRet;
}
__inline
BOOL bSafeReadBits (PVOID pv, PVOID pvTmp, ULONG cj)
{
BOOL bRet = TRUE;
if (pv && pvTmp)
{
__try
{
ProbeAndReadBuffer(pv, pvTmp, cj);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("fail in try/except to read from buffer\n");
bRet = FALSE;
}
}
return bRet;
}
/******************************Public*Routine******************************\
* bCheckSurfaceRect bCheckSurfaceRectSize
*
* Check rect and pco against the surface, make sure we are not going to
* draw outside the surface
*
* bCheckSurfacePath
*
* Check the path against the surface, make sure not going to draw outside
* the surface
*
* bCheckSurfacePoint
*
* Check the point against the surface
*
* History:
* 26-Sept-1997 -by- Lingyun Wang [lingyunw]
* Wrote it.
\**************************************************************************/
__inline
BOOL bCheckSurfaceRect(SURFOBJ *pso, RECTL *prcl, CLIPOBJ *pco)
{
BOOL bRet = TRUE;
BOOL bTrivial;
if (pso)
{
if (pco)
{
bTrivial = (pco->iDComplexity == DC_TRIVIAL) ? TRUE : FALSE;
}
else
{
bTrivial = TRUE;
}
//
// if no clipping, check against the rectangle.
//
if (!bTrivial)
{
//
// there is clipping invloved, check against pco->rclBounds.
//
prcl = &(pco->rclBounds);
}
if (prcl)
{
if ((prcl->left > prcl->right) || (prcl->top > prcl->bottom))
{
WARNING ("prcl not well ordered, returing failure\n");
bRet = FALSE;
}
if (bRet && ((prcl->right > pso->sizlBitmap.cx) || (prcl->left < 0)||
(prcl->bottom > pso->sizlBitmap.cy)|| (prcl->top < 0)))
{
WARNING ("we might draw outside the surface, returning failure\n");
bRet = FALSE;
}
}
}
return bRet;
}
__inline
BOOL bCheckSurfaceRectSize(SURFOBJ *pso, RECTL *prcl, CLIPOBJ *pco,
ULONG *pcx, ULONG *pcy, BOOL bOrder = TRUE)
{
BOOL bRet = TRUE;
BOOL bTrivial;
ERECTL rcl(0, 0, 0, 0);
PRECTL prclBounds = NULL;
if (pso)
{
if (pco)
{
bTrivial = (pco->iDComplexity == DC_TRIVIAL) ? TRUE : FALSE;
}
else
{
bTrivial = TRUE;
}
//
// if no clipping, check against the rectangle.
//
if (!bTrivial)
{
//
// there is clipping invloved, check against pco->rclBounds.
//
prclBounds = &(pco->rclBounds);
rcl = *prclBounds;
}
else
{
if (prcl)
{
rcl = *prcl;
}
}
//
// check the rectangle
//
if (bOrder && ((rcl.left > rcl.right) || (rcl.top > rcl.bottom)))
{
WARNING ("rcl not well ordered, returing failure\n");
return FALSE;
}
//
// check that we are not going outside the surface
//
if ((rcl.right > pso->sizlBitmap.cx) || (rcl.left < 0)||
(rcl.bottom > pso->sizlBitmap.cy)|| (rcl.top < 0))
{
WARNING ("we might draw outside the surface, returning failure\n");
return FALSE;
}
//
// figure out the size
//
if (prclBounds && prcl)
{
RECTL rclIntersect;
rclIntersect.left = MAX(prclBounds->left, prcl->left);
rclIntersect.right = MIN(prclBounds->right, prcl->right);
rclIntersect.top = MAX(prclBounds->top, prcl->top);
rclIntersect.bottom = MAX(prclBounds->bottom, prcl->bottom);
*pcx = (rclIntersect.right - rclIntersect.left) > 0 ?
rclIntersect.right - rclIntersect.left : 0;
*pcy = (rclIntersect.bottom - rclIntersect.top) > 0 ?
rclIntersect.bottom - rclIntersect.top : 0 ;
}
else if (prcl)
{
*pcx = (prcl->right - prcl->left) > 0 ?
prcl->right - prcl->left : 0;
*pcy = (prcl->bottom - prcl->top) > 0 ?
prcl->bottom - prcl->top : 0;
}
else if (prclBounds)
{
*pcx = (prclBounds->right - prclBounds->left) > 0 ?
prclBounds->right - prclBounds->left : 0;
*pcy = (prclBounds->bottom - prclBounds->top) > 0 ?
prclBounds->bottom - prclBounds->top : 0;
}
}
return bRet;
}
__inline
BOOL bCheckDestSurfaceOverlap(SURFOBJ *pso, RECTL* prcl)
{
ERECTL ercl = *prcl;
// If we need to mirror do it.
if (ercl.bottom < ercl.top)
{
LONG lTemp = ercl.top;
ercl.top = ercl.bottom;
ercl.bottom = lTemp;
}
if (ercl.right < ercl.left)
{
LONG lTemp = ercl.left;
ercl.left = ercl.right;
ercl.right = lTemp;
}
ERECTL erclTrg(0, 0, pso->sizlBitmap.cx, pso->sizlBitmap.cy);
ercl *= erclTrg;
if (ercl.bEmpty())
return(FALSE);
return(TRUE);
}
__inline
BOOL bCheckSurfacePath(SURFOBJ *pso, PATHOBJ *ppo, CLIPOBJ *pco)
{
BOOL bRet = TRUE;
BOOL bTrivial;
RECTL *prcl;
if (pso && ppo)
{
if (pco)
{
bTrivial = (pco->iDComplexity == DC_TRIVIAL) ? TRUE : FALSE;
}
else
{
bTrivial = TRUE;
}
if (bTrivial)
{
//
// no clipping, check against ppo->rcfxBoundBox.
//
RECTFX rcfx;
rcfx = ((EPATHOBJ *)ppo)->ppath->rcfxBoundBox;
prcl = (RECTL *)&rcfx;
prcl->left = FXTOL(rcfx.xLeft);
prcl->top = FXTOL(rcfx.yTop);
prcl->right = FXTOL(rcfx.xRight);
prcl->bottom = FXTOL(rcfx.yBottom);
}
else
{
//
// there is clipping invloved, check against pco->rclBounds.
//
prcl = &(pco->rclBounds);
}
if (prcl)
{
if ((prcl->left > prcl->right) || (prcl->top > prcl->bottom))
{
WARNING ("prcl not well ordered, returing failure\n");
bRet = FALSE;
}
if (bRet && (prcl->right > pso->sizlBitmap.cx) || (prcl->left < 0) ||
(prcl->bottom > pso->sizlBitmap.cy)|| (prcl->top < 0))
{
bRet = FALSE;
}
}
}
else
{
WARNING("bCheckSurfacePath either pso or ppo is NULL\n");
bRet = FALSE;
}
return bRet;
}
__inline
BOOL bCheckSurfacePoint(SURFOBJ *pso, POINTL *ptl)
{
BOOL bRet = TRUE;
if (pso && ptl)
{
if ((pso->sizlBitmap.cx < ptl->x) || (ptl->x < 0) ||
(pso->sizlBitmap.cy < ptl->y)|| (ptl->y < 0))
{
bRet = FALSE;
}
}
return bRet;
}
__inline
BOOL bCheckMask(SURFOBJ *psoMask, RECTL *prcl)
{
BOOL bRet = TRUE;
if (psoMask)
{
if (psoMask->iBitmapFormat != BMF_1BPP)
bRet = FALSE;
if (bRet)
bRet = bCheckSurfaceRect(psoMask, prcl, NULL);
}
return bRet;
}
//
// Make sure the we are not going to access pulXlate when there is no one
// Any other checks on xlateobj?
//
__inline
BOOL bCheckXlate(SURFOBJ *pso, XLATEOBJ *pxlo)
{
BOOL bRet = TRUE;
if (pso)
{
if (pxlo && !(pxlo->flXlate & XO_TRIVIAL))
{
switch (pso->iBitmapFormat)
{
case BMF_1BPP:
{
bRet = (pxlo->cEntries == 2) ? TRUE : FALSE;
break;
}
case BMF_4BPP:
{
//we can have a halftone palette of 8 entries
bRet = ((pxlo->cEntries == 16) || (pxlo->cEntries == 8)) ? TRUE : FALSE;
break;
}
case BMF_8BPP:
{
// halftone palette can be any combination
bRet = (pxlo->cEntries <= 256) ? TRUE : FALSE;
break;
}
}
}
}
return bRet;
}
__inline
PRECTL pRect(POINTL *pptl, RECTL *prcl, ULONG cx, ULONG cy)
{
PRECTL prclRet;
if (pptl)
{
prcl->left = pptl->x;
prcl->right = pptl->x + cx;
prcl->top = pptl->y;
prcl->bottom = pptl->y + cy;
prclRet = prcl;
}
else
{
prclRet = NULL;
}
return prclRet;
}
//
// check the order of a rectangle
//
__inline
BOOL bCheckRect(RECTL *prcl)
{
BOOL bRet = TRUE;
if (prcl)
{
if ((prcl->left > prcl->right) || (prcl->top > prcl->bottom))
{
WARNING ("prcl not well ordered, returing failure\n");
bRet = FALSE;
}
}
return bRet;
}
//
// Validate an HSURF and make sure it refers to a UMPD surface
//
__inline BOOL
ValidUmpdHsurf(
HSURF hsurf
)
{
SURFREF so(hsurf);
//
// Make sure hsurf is valid and it refers to a UMPD surface
//
return (so.bValid() && so.ps->bUMPD());
}
//
// Validate an HSURF and Unsecure hSecure
//
__inline BOOL
ValidUmpdHsurfAndUnSecure(
HSURF hsurf
)
{
SURFREF so(hsurf);
//
// Make sure hsurf is valid and it refers to a UMPD surface
//
if (so.bValid() && so.ps->bUMPD())
{
if (so.ps->hSecureUMPD)
{
ASSERTGDI(so.ps->iType() == STYPE_BITMAP, "surf type != STYPE_BITMAP\n");
MmUnsecureVirtualMemory(so.ps->hSecureUMPD);
}
return TRUE;
}
else
{
return FALSE;
}
}
//
// Validate an HDEV belongs to us
//
BOOL
ValidUmpdHdev(
HDEV hdev
)
{
BOOL bRet = FALSE;
if (hdev == NULL)
return FALSE;
if (!IS_SYSTEM_ADDRESS(hdev))
return FALSE;
PPDEV ppdev;
GreAcquireSemaphoreEx(ghsemDriverMgmt, SEMORDER_DRIVERMGMT, NULL);
for (ppdev = gppdevList; ppdev != NULL; ppdev = ppdev->ppdevNext)
{
if ((HDEV)ppdev == hdev)
{
bRet = TRUE;
break;
}
}
GreReleaseSemaphoreEx(ghsemDriverMgmt);
return bRet;
}
//
// Make sure for each HOOK_XXX flag set, we actually
// has the driver function in ppfn
//
BOOL
ValidUmpdHooks (
HDEV hdev,
FLONG flHooks
)
{
PDEVOBJ po(hdev);
return (PPFNGET(po, BitBlt, flHooks) &&
PPFNGET(po, StretchBlt, flHooks) &&
PPFNGET(po, PlgBlt, flHooks) &&
PPFNGET(po, TextOut, flHooks) &&
PPFNGET(po, StrokePath, flHooks) &&
PPFNGET(po, FillPath, flHooks) &&
PPFNGET(po, StrokeAndFillPath, flHooks) &&
PPFNGET(po, Paint, flHooks) &&
PPFNGET(po, CopyBits, flHooks) &&
PPFNGET(po, LineTo, flHooks) &&
PPFNGET(po, StretchBltROP, flHooks) &&
PPFNGET(po, TransparentBlt, flHooks) &&
PPFNGET(po, AlphaBlend, flHooks) &&
PPFNGET(po, GradientFill, flHooks));
}
//
// Valid size for bitmap/surface creation
//
BOOL
ValidUmpdSizl(
SIZEL sizl
)
{
if ((sizl.cx <= 0) || (sizl.cy <= 0))
{
WARNING("ValidUmpdSizl failed - cx or cy <=0 \n");
return FALSE;
}
else
{
ULONGLONG cj = ((ULONGLONG)sizl.cx) * sizl.cy;
if (cj > MAXULONG)
{
WARNING("ValidUmpdSizl failed - cx*cy overflow\n");
return FALSE;
}
}
return TRUE;
}
ULONG
ValidUmpdOverflow(LONG cx, LONG cy)
{
ULONGLONG cj = ((ULONGLONG)cx) * cy;
if (cj > MAXULONG)
return FALSE;
else
return (ULONG)cj;
}
BOOL APIENTRY NtGdiEngAssociateSurface(
IN HSURF hsurf,
IN HDEV hdev,
IN FLONG flHooks
)
{
return ValidUmpdHsurf(hsurf) &&
ValidUmpdHdev(hdev) &&
(!(flHooks & ~HOOK_FLAGS))&&
ValidUmpdHooks (hdev, flHooks) &&
EngAssociateSurface(hsurf, hdev, flHooks);
}
BOOL APIENTRY NtGdiEngDeleteSurface(
IN HSURF hsurf
)
{
return ValidUmpdHsurfAndUnSecure(hsurf) &&
EngDeleteSurface(hsurf);
}
BOOL APIENTRY NtGdiEngMarkBandingSurface(
HSURF hsurf
)
{
return ValidUmpdHsurf(hsurf) &&
EngMarkBandingSurface(hsurf);
}
HBITMAP APIENTRY NtGdiEngCreateBitmap(
IN SIZEL sizl,
IN LONG lWidth,
IN ULONG iFormat,
IN FLONG fl,
IN PVOID pvBits
)
{
HBITMAP hbm = NULL;
HANDLE hSecure = NULL;
ULONG cj;
BOOL bSuccess = TRUE;
TRACE_INIT (("Entering NtGdiEngCreateBitmap\n"));
// check sizl.x and y
if (!ValidUmpdSizl(sizl))
return 0;
cj = ValidUmpdOverflow(lWidth, sizl.cy);
//
// set the high bit of iFormat to indicate umpd driver
//
iFormat |= UMPD_FLAG;
if (pvBits)
{
fl &= ~BMF_USERMEM;
__try
{
ProbeForRead(pvBits,cj,sizeof(BYTE));
hSecure = MmSecureVirtualMemory(pvBits, cj, PAGE_READWRITE);
if (!hSecure)
bSuccess = FALSE;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("EngCreateBitmap -- exception in try/except \n");
bSuccess = FALSE;
}
}
else
{
fl |= BMF_USERMEM;
#if defined(_WIN64)
// wow64 printing
PW32THREAD pw32thread = W32GetCurrentThread();
if (pw32thread->pClientID)
fl |= BMF_UMPDMEM;
#endif
}
if (bSuccess)
{
hbm = EngCreateBitmap(sizl, lWidth, iFormat, fl, pvBits);
}
if (hSecure != NULL)
{
if (hbm != NULL)
{
//
// set hSecure into hSecureUMPD, at EngDeleteSurface time,
// we unsecure it
//
SURFREF so((HSURF) hbm);
if (so.bValid())
{
so.ps->hSecureUMPD = hSecure;
}
else
{
MmUnsecureVirtualMemory(hSecure);
EngDeleteSurface((HSURF)hbm);
hbm = NULL;
}
}
else
{
//
// We secured caller's memory but EngCreateBitmap failed.
//
MmUnsecureVirtualMemory(hSecure);
}
}
return (hbm);
}
BOOL APIENTRY NtGdiEngCopyBits(
IN SURFOBJ *psoDst,
OUT SURFOBJ *psoSrc,
IN CLIPOBJ *pco,
IN XLATEOBJ *pxlo,
IN RECTL *prclDst,
IN POINTL *pptlSrc
)
{
RECTL rcl;
POINTL ptl;
ULONG cx, cy;
BOOL bRet = TRUE;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDst(psoDst, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
psoDst = umsoDst.pso();
psoSrc = umsoSrc.pso();
if (psoDst && psoSrc && (psoDst->iType == STYPE_BITMAP) && prclDst && pptlSrc)
{
__try
{
CaptureRECTL(&prclDst, &rcl);
CapturePOINTL(&pptlSrc, &ptl);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngCopyBits failed in try/except\n");
bRet = FALSE;
}
if (bRet && bOrder(prclDst))
{
pco = pUMObjs->GetDDIOBJ(pco, &psoDst->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
if (bRet = (bCheckSurfaceRectSize(psoDst, prclDst, pco, &cx, &cy) && bCheckXlate(psoSrc, pxlo)))
{
RECTL rclSrc, *prclSrc;
prclSrc = psoSrc ? pRect(pptlSrc, &rclSrc, cx, cy) : NULL;
if (bRet = bCheckSurfaceRect(psoSrc, prclSrc, NULL))
{
bRet = EngCopyBits(psoDst,
psoSrc,
pco,
pxlo,
prclDst,
pptlSrc);
}
}
}
}
else
{
bRet = FALSE;
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngStretchBlt(
SURFOBJ *psoDest,
SURFOBJ *psoSrc,
SURFOBJ *psoMask,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
COLORADJUSTMENT *pca,
POINTL *pptlHTOrg,
RECTL *prclDest,
RECTL *prclSrc,
POINTL *pptlMask,
ULONG iMode
)
{
BOOL bRet = TRUE;
RECTL rclDst, rclSrc;
POINTL ptlMask, ptlHTOrg;
COLORADJUSTMENT ca;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDest(psoDest, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
UMPDSURFOBJ umsoMask(psoMask, pUMObjs);
psoDest = umsoDest.pso();
psoSrc = umsoSrc.pso();
psoMask = umsoMask.pso();
if (!pptlHTOrg && (iMode == HALFTONE))
{
WARNING ("pptlHTOrg is NULL for HALFTONE mode\n");
FIXUP_THREAD_UMPDOBJS;
return (FALSE);
}
if (psoDest && psoSrc && prclDest && prclSrc)
{
__try
{
CaptureRECTL(&prclDest, &rclDst);
CapturePOINTL(&pptlMask, &ptlMask);
CaptureRECTL(&prclSrc, &rclSrc);
CaptureCOLORADJUSTMENT(&pca, &ca);
CapturePOINTL(&pptlHTOrg, &ptlHTOrg);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngStretchBlt failed in try/except\n");
bRet = FALSE;
}
if (!bCheckDestSurfaceOverlap(psoDest,prclDest))
{
FIXUP_THREAD_UMPDOBJS;
return(TRUE);
}
if (bRet)
{
pco = pUMObjs->GetDDIOBJ(pco, &psoDest->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
//
// EngStretchBlt does trimming and checking of the dest and src rectangles,
// but it assumes the src rect is well-ordered. Check here.
//
bRet = bOrder(prclSrc) && bCheckXlate(psoSrc, pxlo);
if (bRet && psoMask)
{
RECTL rclMask, *prclMask;
ULONG cx, cy;
if (bRet = bCheckSurfaceRectSize(psoSrc, prclSrc, NULL, &cx, &cy))
{
prclMask = pRect(pptlMask, &rclMask, cx, cy);
bRet = bCheckMask(psoMask, prclMask);
}
}
if (bRet)
bRet = EngStretchBlt(psoDest,
psoSrc,
psoMask,
pco,
pxlo,
pca,
pptlHTOrg,
prclDest,
prclSrc,
pptlMask,
iMode);
}
}
else
{
bRet = FALSE;
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngStretchBltROP(
SURFOBJ *psoDest,
SURFOBJ *psoSrc,
SURFOBJ *psoMask,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
COLORADJUSTMENT *pca,
POINTL *pptlHTOrg,
RECTL *prclDest,
RECTL *prclSrc,
POINTL *pptlMask,
ULONG iMode,
BRUSHOBJ *pbo,
DWORD rop4
)
{
BOOL bRet = TRUE;
RECTL rclDst, rclSrc;
POINTL ptlMask, ptlHTOrg;
COLORADJUSTMENT ca;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDest(psoDest, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
UMPDSURFOBJ umsoMask(psoMask, pUMObjs);
psoDest = umsoDest.pso();
psoSrc = umsoSrc.pso();
psoMask = umsoMask.pso();
if (!pptlHTOrg && (iMode == HALFTONE))
{
WARNING ("pptlHTOrg is NULL for HALFTONE mode\n");
FIXUP_THREAD_UMPDOBJS;
return (FALSE);
}
if (psoDest && psoSrc && prclDest && prclSrc)
{
__try
{
CaptureRECTL(&prclDest, &rclDst);
CaptureRECTL(&prclSrc, &rclSrc);
CapturePOINTL(&pptlMask, &ptlMask);
CapturePOINTL(&pptlHTOrg, &ptlHTOrg);
CaptureCOLORADJUSTMENT(&pca, &ca);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngStretchBltTROP failed in try/except\n");
bRet = FALSE;
}
if (!bCheckDestSurfaceOverlap(psoDest,prclDest))
{
FIXUP_THREAD_UMPDOBJS;
return(TRUE);
}
if (bRet)
{
ULONG cx, cy;
BRUSHOBJ boTemp;
pco = pUMObjs->GetDDIOBJ(pco, &psoDest->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
//
// EngStretchBlt does trimming and checking of the rectangles,
// but it assumes the src rect is well-ordered, check here.
//
bRet = (!ROP4NEEDSRC(rop4) || bOrder(prclSrc)) && bCheckXlate(psoSrc, pxlo) &&
(!ROP4NEEDMASK(rop4) || psoMask || PROBEDISPATBRUSH(pbo));
if (ROP4NEEDMASK(rop4) && (!psoMask || !pptlMask))
bRet = FALSE;
if (bRet && (rop4 == 0XAACC) && psoMask)
{
RECTL rclMask, *prclMask;
ULONG cx, cy;
if (bRet = bCheckSurfaceRectSize(psoSrc, prclSrc, NULL, &cx, &cy))
{
prclMask = pRect(pptlMask, &rclMask, cx, cy);
bRet = bCheckMask(psoMask, prclMask);
}
}
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
bRet = bRet &&
EngStretchBltROP(psoDest,
psoSrc,
psoMask,
pco,
pxlo,
pca,
pptlHTOrg,
prclDest,
prclSrc,
pptlMask,
iMode,
pbo,
rop4);
}
}
else
{
bRet = FALSE;
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngPlgBlt(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
SURFOBJ *psoMsk,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
COLORADJUSTMENT *pca,
POINTL *pptlBrushOrg,
POINTFIX *pptfxDest,
RECTL *prclSrc,
POINTL *pptlMask,
ULONG iMode
)
{
BOOL bRet = TRUE;
RECTL rcl;
POINTL ptl, ptlBrushOrg;
POINTFIX pptfx[3];
COLORADJUSTMENT ca;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoTrg(psoTrg, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
UMPDSURFOBJ umsoMsk(psoMsk, pUMObjs);
psoTrg = umsoTrg.pso();
psoSrc = umsoSrc.pso();
psoMsk = umsoMsk.pso();
if (psoTrg && psoSrc && prclSrc && pptfxDest)
{
__try
{
CaptureRECTL(&prclSrc, &rcl);
CaptureCOLORADJUSTMENT(&pca, &ca);
CapturePOINTL(&pptlMask, &ptl);
CapturePOINTL(&pptlBrushOrg, &ptlBrushOrg);
CaptureBits(pptfx, pptfxDest, sizeof(POINTFIX)*3);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngPlgBlt failed in try/except\n");
bRet = FALSE;
}
if (bRet)
{
ULONG cx, cy;
pco = pUMObjs->GetDDIOBJ(pco, &psoTrg->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
//
// EngPlgBlt does the rectangle trimming and checking of dest and src
//
if (bRet = (bCheckRect(prclSrc) && bCheckXlate(psoSrc, pxlo)))
{
if (psoMsk)
{
RECTL rclMask, *prclMask;
ULONG cx, cy;
if (bRet = bCheckSurfaceRectSize(psoSrc, prclSrc, NULL, &cx, &cy))
{
prclMask = pRect(pptlMask, &rclMask, cx, cy);
bRet = bCheckMask(psoMsk, prclMask);
}
}
if (bRet)
bRet = EngPlgBlt(psoTrg,
psoSrc,
psoMsk,
pco,
pxlo,
pca,
&ptlBrushOrg,
pptfx,
prclSrc,
pptlMask,
iMode);
}
}
}
else
{
bRet = FALSE;
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
SURFOBJ *APIENTRY NtGdiEngLockSurface(
IN HSURF hsurf
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
SURFOBJ *surfRet = pUMObjs->LockSurface(hsurf);
FIXUP_THREAD_UMPDOBJS;
return (surfRet);
}
VOID APIENTRY NtGdiEngUnlockSurface(
IN SURFOBJ *pso
)
{
EXTRACT_THREAD_UMPDOBJS;
pUMObjs->UnlockSurface(pso);
FIXUP_THREAD_UMPDOBJS;
}
BOOL APIENTRY NtGdiEngBitBlt(
IN SURFOBJ *psoDst,
IN SURFOBJ *psoSrc,
IN SURFOBJ *psoMask,
IN CLIPOBJ *pco,
IN XLATEOBJ *pxlo,
IN RECTL *prclDst,
IN POINTL *pptlSrc,
IN POINTL *pptlMask,
IN BRUSHOBJ *pbo,
IN POINTL *pptlBrush,
IN ROP4 rop4
)
{
BOOL bRet = TRUE;
RECTL rclDst;
POINTL ptlSrc, ptlMask, ptlBrush;
BRUSHOBJ boTemp;
TRACE_INIT (("Entering NtGdiEngBitBlt\n"));
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDst(psoDst, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
UMPDSURFOBJ umsoMask(psoMask, pUMObjs);
psoDst = umsoDst.pso();
psoSrc = umsoSrc.pso();
psoMask = umsoMask.pso();
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
if (((rop4 & 0xffff0000) != 0) ||
!prclDst ||
(ROP4NEEDPAT(rop4) && (!pbo || ISPATBRUSH(pbo) && !pptlBrush)) ||
(ROP4NEEDSRC(rop4) && !(pptlSrc && psoSrc)) ||
(ROP4NEEDMASK(rop4) && !(psoMask || ISPATBRUSH(pbo))))
{
WARNING ("NtGdiEngBitBlt invalid parameters passed in\n");
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
if (psoDst)
{
__try
{
CaptureRECTL(&prclDst, &rclDst);
CapturePOINTL(&pptlSrc, &ptlSrc);
CapturePOINTL(&pptlMask, &ptlMask);
CapturePOINTL(&pptlBrush, &ptlBrush);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngBitBlt failed in try/except\n");
bRet = FALSE;
}
if (bRet)
{
ULONG cx, cy;
pco = pUMObjs->GetDDIOBJ(pco, &psoDst->sizlBitmap);
if (bRet = bCheckSurfaceRectSize(psoDst, prclDst, pco, &cx, &cy) &&
bCheckXlate(psoSrc, pxlo))
{
RECTL rclSrc, *prclSrc;
RECTL rclMask, *prclMask;
prclSrc = psoSrc ? pRect(pptlSrc, &rclSrc, cx, cy) : NULL;
prclMask = psoMask ? pRect(pptlMask, &rclMask, cx, cy) : NULL;
if (bRet = (bCheckSurfaceRect(psoSrc, prclSrc, NULL) &&
bCheckMask(psoMask, prclMask)))
{
bRet = EngBitBlt(psoDst,
psoSrc,
psoMask,
pco,
pxlo,
prclDst,
pptlSrc,
pptlMask,
pbo,
pptlBrush,
rop4);
}
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngStrokePath(
SURFOBJ *pso,
PATHOBJ *ppo,
CLIPOBJ *pco,
XFORMOBJ *pxo,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
LINEATTRS *plineattrs,
MIX mix
)
{
BOOL bRet = TRUE;
POINTL ptl;
LINEATTRS line;
BRUSHOBJ boTemp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
TRACE_INIT (("Entering NtGdiEngStrokePath\n"));
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
ppo = pUMObjs->GetDDIOBJ(ppo);
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
if (pso && pbo && ppo && plineattrs && pptlBrushOrg)
{
__try
{
CapturePOINTL(&pptlBrushOrg, &ptl);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngStrokePath failed in try/except\n");
bRet = FALSE;
}
if (bRet)
bRet = bCaptureLINEATTRS(&plineattrs, &line);
if (bRet)
{
pco = pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap);
pxo = pUMObjs->GetDDIOBJ(pxo);
if ((plineattrs->fl & LA_GEOMETRIC) && pxo == 0)
bRet = FALSE;
bRet = bRet && bCheckSurfacePath(pso, ppo, pco) &&
(!MIXNEEDMASK(mix) || ISPATBRUSH(pbo)) &&
EngStrokePath(pso,
ppo,
pco,
pxo,
pbo,
pptlBrushOrg,
plineattrs,
mix);
if (plineattrs && plineattrs->pstyle)
VFREEMEM(plineattrs->pstyle);
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngFillPath(
SURFOBJ *pso,
PATHOBJ *ppo,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
MIX mix,
FLONG flOptions
)
{
BOOL bRet = FALSE;
POINTL ptlBrushOrg;
BRUSHOBJ boTemp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
ppo = pUMObjs->GetDDIOBJ(ppo);
pco = pso ? pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap) : NULL;
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
if (pso && pbo && ppo && pco && (pco->iMode == TC_RECTANGLES) && pptlBrushOrg)
{
__try
{
CapturePOINTL(&pptlBrushOrg, &ptlBrushOrg);
bRet = TRUE;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngFillPath failed in try/except\n");
}
bRet = bRet &&
bCheckSurfacePath(pso, ppo, pco) &&
(!MIXNEEDMASK(mix) || ISPATBRUSH(pbo)) &&
EngFillPath(pso,
ppo,
pco,
pbo,
pptlBrushOrg,
mix,
flOptions);
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngStrokeAndFillPath(
SURFOBJ *pso,
PATHOBJ *ppo,
CLIPOBJ *pco,
XFORMOBJ *pxo,
BRUSHOBJ *pboStroke,
LINEATTRS *plineattrs,
BRUSHOBJ *pboFill,
POINTL *pptlBrushOrg,
MIX mixFill,
FLONG flOptions
)
{
BOOL bRet = FALSE;
POINTL ptl;
LINEATTRS line;
BRUSHOBJ boTempStroke, boTempFill;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
ppo = pUMObjs->GetDDIOBJ(ppo);
pco = pso ? pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap) : NULL;
MAP_UM_BRUSHOBJ(pUMObjs, pboStroke, &boTempStroke);
MAP_UM_BRUSHOBJ(pUMObjs, pboFill, &boTempFill);
if (pso && pboStroke && pboFill && ppo && plineattrs && pco && pptlBrushOrg)
{
__try
{
CapturePOINTL(&pptlBrushOrg, &ptl);
bRet = TRUE;
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngStrokeAndFillPath failed in try/except\n");
}
if (bRet)
bRet = bCaptureLINEATTRS(&plineattrs, &line);
if (bRet)
{
pxo = pUMObjs->GetDDIOBJ(pxo);
if ((plineattrs->fl & LA_GEOMETRIC) && pxo == 0)
bRet = FALSE;
bRet = bRet && bCheckSurfacePath(pso, ppo, pco) &&
(!MIXNEEDMASK(mixFill) || ISPATBRUSH(pboFill)) &&
EngStrokeAndFillPath(pso,
ppo,
pco,
pxo,
pboStroke,
plineattrs,
pboFill,
pptlBrushOrg,
mixFill,
flOptions);
if (plineattrs && plineattrs->pstyle)
VFREEMEM(plineattrs->pstyle);
}
}
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
BOOL APIENTRY
NtGdiEngPaint(
SURFOBJ *pso,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
MIX mix
)
{
POINTL ptlBrushOrg;
BOOL bRet = TRUE;
BRUSHOBJ boTemp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
pco = pso ? pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap) : NULL;
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
if (pso && pco && (pco->iMode == TC_RECTANGLES) && (mix & 0xff00))
{
__try
{
CapturePOINTL(&pptlBrushOrg, &ptlBrushOrg);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngPaint failed in try/except\n");
bRet = FALSE;
}
if (bRet && (bRet = bCheckSurfaceRect(pso, NULL, pco)))
{
bRet = EngPaint(pso, pco, pbo, pptlBrushOrg, mix);
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
BOOL APIENTRY NtGdiEngLineTo(
SURFOBJ *pso,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
LONG x1,
LONG y1,
LONG x2,
LONG y2,
RECTL *prclBounds,
MIX mix
)
{
BOOL bRet = TRUE;
RECTL rcl;
RECTL rclline = {x1,y1,x2,y2};
BRUSHOBJ boTemp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
MAP_UM_BRUSHOBJ(pUMObjs, pbo, &boTemp);
if (pso && pbo)
{
__try
{
CaptureRECTL(&prclBounds, &rcl);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngLineTo failed in try/except\n");
bRet = FALSE;
}
if (bRet)
{
pco = pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap);
if (bRet = bCheckSurfaceRect(pso, &rclline, pco))
{
bRet = EngLineTo(pso,
pco,
pbo,
x1,
y1,
x2,
y2,
prclBounds,
mix);
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngAlphaBlend(
SURFOBJ *psoDest,
SURFOBJ *psoSrc,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclDest,
RECTL *prclSrc,
BLENDOBJ *pBlendObj
)
{
BOOL bRet = TRUE;
RECTL rclDest, rclSrc;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDest(psoDest, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
pBlendObj = pUMObjs->GetDDIOBJ(pBlendObj);
psoDest = umsoDest.pso();
psoSrc = umsoSrc.pso();
if (psoDest && psoSrc && pBlendObj && prclDest && prclSrc)
{
__try
{
CaptureRECTL(&prclSrc, &rclSrc);
CaptureRECTL(&prclDest, &rclDest);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngAlphaBlend failed in try/except\n");
bRet = FALSE;
}
if (bRet && bOrder(prclSrc) && bOrder(prclDest))
{
pco = pUMObjs->GetDDIOBJ(pco, &psoDest->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
if (bRet = (bCheckSurfaceRect(psoSrc, prclSrc, NULL) && bCheckXlate(psoSrc, pxlo)))
{
bRet = EngAlphaBlend(psoDest,
psoSrc,
pco,
pxlo,
prclDest,
prclSrc,
pBlendObj);
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
//
// Make sure the Vertex and Mesh data are valid. i.e that they are bounded
// within each other.
//
__inline
BOOL bValidVertexMeshData(
TRIVERTEX *pVertex,
PVOID pMeshIn,
ULONG nVertex,
ULONG nMesh,
ULONG ulMode)
{
ULONG ulIndex;
if (nVertex <= 1)
return FALSE;
PTRIVERTEX pTVb = pVertex;
PTRIVERTEX pTVe = pVertex + nVertex - 1;
PTRIVERTEX pTV;
switch (ulMode)
{
case GRADIENT_FILL_RECT_H:
case GRADIENT_FILL_RECT_V:
{
PGRADIENT_RECT pMesh = (PGRADIENT_RECT)pMeshIn;
for (ulIndex = 0; ulIndex < nMesh; ulIndex++)
{
pTV = pTVb + pMesh[ulIndex].UpperLeft;
if (!(pTV >= pTVb && pTV <= pTVe))
return FALSE;
pTV = pTVb + pMesh[ulIndex].LowerRight;
if (!(pTV >= pTVb && pTV <= pTVe))
return FALSE;
}
}
break;
case GRADIENT_FILL_TRIANGLE:
{
PGRADIENT_TRIANGLE pMesh = (PGRADIENT_TRIANGLE)pMeshIn;
for (ulIndex = 0; ulIndex < nMesh; ulIndex++)
{
pTV = pTVb + pMesh[ulIndex].Vertex1;
if (!(pTV >= pTVb && pTV <= pTVe))
return FALSE;
pTV = pTVb + pMesh[ulIndex].Vertex2;
if (!(pTV >= pTVb && pTV <= pTVe))
return FALSE;
pTV = pTVb + pMesh[ulIndex].Vertex3;
if (!(pTV >= pTVb && pTV <= pTVe))
return FALSE;
}
}
break;
default:
return FALSE;
}
return TRUE;
}
BOOL APIENTRY NtGdiEngGradientFill(
SURFOBJ *psoDest,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
TRIVERTEX *pVertex,
ULONG nVertex,
PVOID pMesh,
ULONG nMesh,
RECTL *prclExtents,
POINTL *pptlDitherOrg,
ULONG ulMode
)
{
BOOL bRet = TRUE;
RECTL rcl;
POINTL ptl;
TRIVERTEX *pVertexTmp = (TRIVERTEX *)NULL;
PVOID pMeshTmp = NULL;
ULONG cjMesh;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDest(psoDest, pUMObjs);
psoDest = umsoDest.pso();
switch (ulMode)
{
case GRADIENT_FILL_RECT_H:
case GRADIENT_FILL_RECT_V:
cjMesh = sizeof(GRADIENT_RECT);
if (BALLOC_OVERFLOW1(nMesh, GRADIENT_RECT))
{
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
break;
case GRADIENT_FILL_TRIANGLE:
cjMesh = sizeof(GRADIENT_TRIANGLE);
if (BALLOC_OVERFLOW1(nMesh, GRADIENT_TRIANGLE))
{
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
break;
default:
WARNING ("Invalid ulMode in DrvGradientFill\n");
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
if (nMesh == 0 || nVertex == 0)
{
FIXUP_THREAD_UMPDOBJS;
return TRUE;
}
cjMesh *= nMesh;
if (BALLOC_OVERFLOW1(nVertex, TRIVERTEX))
{
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
pVertexTmp = (TRIVERTEX *)PALLOCNOZ (sizeof(TRIVERTEX)*nVertex, UMPD_MEMORY_TAG);
pMeshTmp = PALLOCNOZ (cjMesh, UMPD_MEMORY_TAG);
if (psoDest && pVertex && pMesh && pVertexTmp && pMeshTmp && prclExtents && pptlDitherOrg)
{
__try
{
CaptureRECTL(&prclExtents, &rcl);
CapturePOINTL(&pptlDitherOrg, &ptl);
CaptureBits(pVertexTmp, pVertex, sizeof(TRIVERTEX)*nVertex);
CaptureBits(pMeshTmp, pMesh, cjMesh);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngAlphaBlend failed in try/except\n");
bRet = FALSE;
}
bRet = bRet && bValidVertexMeshData(pVertexTmp,pMeshTmp,nVertex,nMesh,ulMode);
if (bRet)
{
pco = pUMObjs->GetDDIOBJ(pco, &psoDest->sizlBitmap);
bRet = EngGradientFill(psoDest,
pco,
pUMObjs->GetDDIOBJ(pxlo),
pVertexTmp,
nVertex,
pMeshTmp,
nMesh,
prclExtents,
pptlDitherOrg,
ulMode);
}
}
else
bRet = FALSE;
if (pVertexTmp)
VFREEMEM(pVertexTmp);
if (pMeshTmp)
VFREEMEM(pMeshTmp);
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
BOOL APIENTRY NtGdiEngTransparentBlt(
SURFOBJ *psoDst,
SURFOBJ *psoSrc,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclDst,
RECTL *prclSrc,
ULONG iTransColor,
ULONG ulReserved
)
{
BOOL bRet = TRUE;
RECTL rclDst, rclSrc;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umsoDst(psoDst, pUMObjs);
UMPDSURFOBJ umsoSrc(psoSrc, pUMObjs);
psoDst = umsoDst.pso();
psoSrc = umsoSrc.pso();
if (psoDst && psoSrc && prclDst && prclSrc)
{
__try
{
CaptureRECTL(&prclSrc, &rclSrc);
CaptureRECTL(&prclDst, &rclDst);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngTransparentBlt failed in try/except\n");
bRet = FALSE;
}
if (bRet && bOrder(prclDst) && bOrder(prclSrc))
{
pco = pUMObjs->GetDDIOBJ(pco, &psoDst->sizlBitmap);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
if (bRet = (bCheckSurfaceRect(psoSrc, prclSrc, NULL) && bCheckXlate(psoSrc, pxlo)))
{
bRet = EngTransparentBlt(psoDst,
psoSrc,
pco,
pxlo,
prclDst,
prclSrc,
iTransColor,
ulReserved);
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
BOOL APIENTRY NtGdiEngTextOut(
SURFOBJ *pso,
STROBJ *pstro,
FONTOBJ *pfo,
CLIPOBJ *pco,
RECTL *prclExtra,
RECTL *prclOpaque,
BRUSHOBJ *pboFore,
BRUSHOBJ *pboOpaque,
POINTL *pptlOrg,
MIX mix
)
{
BOOL bRet = TRUE;
RECTL rclExtra, rclOpaque;
POINTL ptlOrg;
BRUSHOBJ boTempFore, boTempOpaque;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
pstro = pUMObjs->GetDDIOBJ(pstro);
pfo = pUMObjs->GetDDIOBJ(pfo);
MAP_UM_BRUSHOBJ(pUMObjs, pboFore, &boTempFore);
MAP_UM_BRUSHOBJ(pUMObjs, pboOpaque, &boTempOpaque);
if (pso && pstro && pfo && pboFore && pptlOrg)
{
__try
{
CaptureRECTL(&prclExtra, &rclExtra);
CaptureRECTL(&prclOpaque, &rclOpaque);
CapturePOINTL(&pptlOrg, &ptlOrg);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngTextOut failed in try/except\n");
bRet = FALSE;
}
if (bRet)
{
pco = pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap);
if (bRet = (!MIXNEEDMASK(mix) || ISPATBRUSH(pboFore)) &&
bCheckSurfaceRect(pso, prclOpaque, pco))
{
RFONTTMPOBJ rfto(PFO_TO_PRF(pfo));
UMPDAcquireRFONTSem(rfto, pUMObjs, 0, 0, NULL);
bRet = EngTextOut(pso,
pstro,
pfo,
pco,
prclExtra,
prclOpaque,
pboFore,
pboOpaque,
pptlOrg,
mix);
UMPDReleaseRFONTSem(rfto, pUMObjs, NULL, NULL, NULL);
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
HPALETTE APIENTRY NtGdiEngCreatePalette(
ULONG iMode,
ULONG cColors,
ULONG *pulColors,
FLONG flRed,
FLONG flGreen,
FLONG flBlue
)
{
HPALETTE hpal = (HPALETTE)1;
ULONG pulColorsTmp[256];
HANDLE hSecure = 0;
TRACE_INIT (("Entering NtGdiEngCreatePalette\n"));
//
// cColors has a limit of 64k
//
if (cColors > 64 * 1024)
return 0;
if ((iMode == PAL_INDEXED) && cColors)
{
if (cColors > 256)
hpal = (HPALETTE)(ULONG_PTR)bSecureBits(pulColors, cColors*sizeof(ULONG), &hSecure);
else
{
hpal = (HPALETTE)(ULONG_PTR)bSafeReadBits(pulColorsTmp, pulColors, cColors*sizeof(ULONG));
}
}
if (hpal)
{
//
// set the high bit of iMode to indicate umpd driver
//
iMode |= UMPD_FLAG;
hpal = EngCreatePalette(iMode, cColors, pulColors, flRed, flGreen, flBlue);
}
if (hSecure)
{
MmUnsecureVirtualMemory(hSecure);
}
return hpal;
}
BOOL APIENTRY NtGdiEngDeletePalette(
IN HPALETTE hpal
)
{
TRACE_INIT (("Entering NtGdiEngDeletePalette\n"));
//
// EngDeletePalette will check if hpal is valid
// so we don't need to check hpal here
//
return (EngDeletePalette(hpal));
}
BOOL APIENTRY NtGdiEngEraseSurface(
IN SURFOBJ *pso,
IN RECTL *prcl,
IN ULONG iColor
)
{
BOOL bRet = TRUE;
RECTL rcl;
EXTRACT_THREAD_UMPDOBJS(FALSE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
if (pso)
{
__try
{
CaptureRECTL(&prcl, &rcl);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiEngEraseSurface failed in try/except\n");
bRet = FALSE;
}
if (bRet)
{
if (bRet = bCheckSurfaceRect(pso, prcl, NULL))
{
bRet = EngEraseSurface(pso, prcl, iColor);
}
}
}
else
bRet = FALSE;
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
PATHOBJ* APIENTRY NtGdiCLIPOBJ_ppoGetPath(
CLIPOBJ *pco
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
PATHOBJ* poRet = pUMObjs->GetCLIPOBJPath(pco);
FIXUP_THREAD_UMPDOBJS;
return poRet;
}
VOID APIENTRY NtGdiEngDeletePath(
IN PATHOBJ *ppo
)
{
EXTRACT_THREAD_UMPDOBJS;
pUMObjs->DeleteCLIPOBJPath(ppo);
FIXUP_THREAD_UMPDOBJS;
}
CLIPOBJ* APIENTRY NtGdiEngCreateClip()
{
EXTRACT_THREAD_UMPDOBJS(NULL);
CLIPOBJ* clipRet = pUMObjs->CreateCLIPOBJ();
FIXUP_THREAD_UMPDOBJS;
return clipRet;
}
VOID APIENTRY NtGdiEngDeleteClip(
CLIPOBJ *pco
)
{
EXTRACT_THREAD_UMPDOBJS;
pUMObjs->DeleteCLIPOBJ(pco);
FIXUP_THREAD_UMPDOBJS;
}
ULONG APIENTRY NtGdiCLIPOBJ_cEnumStart(
CLIPOBJ *pco,
BOOL bAll,
ULONG iType,
ULONG iDirection,
ULONG cLimit
)
{
EXTRACT_THREAD_UMPDOBJS(0xffffffff);
ULONG ulRet = 0xffffffff;
pco = pUMObjs->GetDDIOBJ(pco);
if (pco)
{
ulRet = CLIPOBJ_cEnumStart(pco,
bAll,
iType,
iDirection,
cLimit);
}
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
BOOL APIENTRY NtGdiCLIPOBJ_bEnum(
CLIPOBJ *pco,
ULONG cj,
ULONG *pul
)
{
BOOL bRet = DDI_ERROR;
ULONG *pulTmp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
pco = pUMObjs->GetDDIOBJ(pco);
if (pco)
{
pulTmp = (PULONG)PALLOCNOZ(cj, UMPD_MEMORY_TAG);
if (pulTmp)
{
ULONG cjFilled = 0;
bRet = (*(XCLIPOBJ *)pco).bEnum(cj, pulTmp, &cjFilled);
if (bRet != DDI_ERROR)
if (!bSafeCopyBits(pul, pulTmp, cjFilled))
bRet = DDI_ERROR;
VFREEMEM(pulTmp);
}
}
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
PVOID APIENTRY NtGdiBRUSHOBJ_pvAllocRbrush(
BRUSHOBJ *pbo,
ULONG cj
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
PVOID pvRet = ((pbo = pUMObjs->GetDDIOBJ(pbo)) != NULL) ?
BRUSHOBJ_pvAllocRbrushUMPD(pbo, cj) :
NULL;
FIXUP_THREAD_UMPDOBJS;
return pvRet;
}
PVOID APIENTRY NtGdiBRUSHOBJ_pvGetRbrush(
BRUSHOBJ *pbo
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
PVOID pvRet = ((pbo = pUMObjs->GetDDIOBJ(pbo)) != NULL) ?
BRUSHOBJ_pvGetRbrushUMPD(pbo) :
NULL;
FIXUP_THREAD_UMPDOBJS;
return pvRet;
}
ULONG APIENTRY NtGdiBRUSHOBJ_ulGetBrushColor(
BRUSHOBJ *pbo
)
{
EXTRACT_THREAD_UMPDOBJS(0);
ULONG ulRet = 0;
BRUSHOBJ *pbokm;
if (pbokm = pUMObjs->GetDDIOBJ(pbo))
{
if ((pbo->flColorType & BR_ORIGCOLOR) && ((EBRUSHOBJ*)pbokm)->bIsSolid())
{
pbokm->flColorType |= BR_ORIGCOLOR;
}
ulRet = BRUSHOBJ_ulGetBrushColor(pbokm);
pbo->flColorType &= ~BR_ORIGCOLOR;
}
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
HANDLE APIENTRY NtGdiBRUSHOBJ_hGetColorTransform(
BRUSHOBJ *pbo
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
HANDLE hRet = ((pbo = pUMObjs->GetDDIOBJ(pbo)) != NULL) ?
BRUSHOBJ_hGetColorTransform(pbo) :
NULL;
FIXUP_THREAD_UMPDOBJS;
return hRet;
}
BOOL APIENTRY NtGdiXFORMOBJ_bApplyXform(
XFORMOBJ *pxo,
ULONG iMode,
ULONG cPoints,
PVOID pvIn,
PVOID pvOut
)
#define APPLYXFORM_STACK_POINTS 4
{
POINTL ptlIn[APPLYXFORM_STACK_POINTS];
POINTL ptlOut[APPLYXFORM_STACK_POINTS];
PVOID pvInTmp, pvOutTmp;
BOOL bRet = FALSE;
if (BALLOC_OVERFLOW1(cPoints, POINTL))
return FALSE;
EXTRACT_THREAD_UMPDOBJS(FALSE);
pxo = pUMObjs->GetDDIOBJ(pxo);
if (pxo && pvIn && pvOut && cPoints)
{
if (cPoints <= APPLYXFORM_STACK_POINTS)
{
pvInTmp = ptlIn;
pvOutTmp = ptlOut;
}
else
{
pvInTmp = PALLOCNOZ(sizeof(POINTL)*cPoints, UMPD_MEMORY_TAG);
pvOutTmp = PALLOCNOZ(sizeof(POINTL)*cPoints, UMPD_MEMORY_TAG);
}
if (pvInTmp != NULL &&
pvOutTmp != NULL &&
bSafeReadBits(pvInTmp, pvIn, cPoints*sizeof(POINTL)))
{
bRet = XFORMOBJ_bApplyXform(pxo, iMode, cPoints, pvInTmp, pvOutTmp) &&
bSafeCopyBits(pvOut, pvOutTmp, cPoints*sizeof(POINTL));
}
if (cPoints > APPLYXFORM_STACK_POINTS)
{
if (pvInTmp != NULL)
VFREEMEM(pvInTmp);
if (pvOutTmp != NULL)
VFREEMEM(pvOutTmp);
}
}
FIXUP_THREAD_UMPDOBJS;
return (bRet);
}
ULONG APIENTRY NtGdiXFORMOBJ_iGetXform(
XFORMOBJ *pxo,
XFORML *pxform
)
{
ULONG ulRet = DDI_ERROR;
XFORML xform;
EXTRACT_THREAD_UMPDOBJS(DDI_ERROR);
pxo = pUMObjs->GetDDIOBJ(pxo);
if (pxo)
{
ulRet = XFORMOBJ_iGetXform(pxo, pxform? &xform : NULL);
if ((ulRet != DDI_ERROR) && pxform)
{
__try
{
ProbeAndWriteStructure (pxform, xform, XFORML);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
ulRet = DDI_ERROR;
}
}
}
FIXUP_THREAD_UMPDOBJS;
return (ulRet);
}
VOID APIENTRY NtGdiFONTOBJ_vGetInfo(
FONTOBJ *pfo,
ULONG cjSize,
FONTINFO *pfi
)
{
FONTINFO *pfiTmp = NULL;
EXTRACT_THREAD_UMPDOBJS;
pfo = pUMObjs->GetDDIOBJ(pfo);
if (pfo)
{
if (cjSize && pfi)
{
if (pfiTmp = (FONTINFO *)PALLOCNOZ(cjSize, UMPD_MEMORY_TAG))
{
FONTOBJ_vGetInfo(pfo, cjSize, pfiTmp);
bSafeCopyBits(pfi, pfiTmp, cjSize);
VFREEMEM(pfiTmp);
}
}
}
FIXUP_THREAD_UMPDOBJS;
}
//
// FONTOBJ_cGetGlyphs is a service to the font consumer that translates glyph handles into
// pointers to glyph data. These pointers are valid until the next call to FONTOBJ_cGetGlyphs.
// this means that we only need to attache one ppvGlyph onto the thread at any time.
//
// Note: another way to do this is to pre-allocate a reasonable size of User memory and
// use that memory for all temporary data buffers, and grow it when we are reaching the limit
// Thus we save the memory allocation calls.
//
ULONG APIENTRY NtGdiFONTOBJ_cGetGlyphs(
FONTOBJ *pfo,
ULONG iMode,
ULONG cGlyph,
HGLYPH *phg,
PVOID *ppvGlyph
)
{
GLYPHDATA *pgd, *pgdkm;
HGLYPH hg;
ULONG ulRet = 1;
EXTRACT_THREAD_UMPDOBJS(0);
if ((pfo = pUMObjs->GetDDIOBJ(pfo)) == NULL ||
(iMode != FO_GLYPHBITS && iMode != FO_PATHOBJ))
{
WARNING("Invalid parameter passed to NtGdiFONTOBJ_cGetGlyphs\n");
FIXUP_THREAD_UMPDOBJS;
return 0;
}
//
// Call the engine to retrive glyph data
//
// NOTE: DDK documentation is bogus.
// Font driver only supports cGlyph == 1 case.
//
__try
{
CaptureDWORD (&phg, &hg);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("NtGdiFONTOBJ_cGetGlyphs failed in try/except\n");
ulRet = 0;
}
if (ulRet)
{
RFONTTMPOBJ rfto(PFO_TO_PRF(pfo));
UMPDAcquireRFONTSem(rfto, pUMObjs, 0, 0, NULL);
if ((ulRet = FONTOBJ_cGetGlyphs(pfo, iMode, 1, phg, (PVOID *) &pgd)) == 1)
{
//
// Thunk GLYPHDATA structure
//
pgdkm = pgd;
if (!pUMObjs->ThunkMemBlock((PVOID *) &pgd, sizeof(GLYPHDATA)))
{
WARNING("Couldn't thunk GLYPHDATA structure\n");
ulRet = 0;
}
else if (iMode == FO_GLYPHBITS)
{
//
// Thunk GLYPHBITS structure
//
if (pgdkm->gdf.pgb != NULL &&
(pgd->gdf.pgb = pUMObjs->CacheGlyphBits(pgdkm->gdf.pgb)) == NULL)
{
WARNING("Couldn't thunk GLYPHBITS structure\n");
ulRet = 0;
}
}
else
{
//
// Thunk PATHOBJ
//
if (pgdkm->gdf.ppo != NULL &&
(pgd->gdf.ppo = pUMObjs->CacheGlyphPath(pgdkm->gdf.ppo)) == NULL)
{
WARNING("Couldn't thunk PATHOBJ structure\n");
ulRet = 0;
}
}
}
UMPDReleaseRFONTSem(rfto, pUMObjs, NULL, NULL, NULL);
if (ulRet != 0)
{
__try
{
ProbeAndWriteStructure (ppvGlyph, (PVOID)pgd, PVOID);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING ("fail to write in ppvGlyph\n");
ulRet = 0;
}
}
}
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
ULONG APIENTRY NtGdiFONTOBJ_cGetAllGlyphHandles(
IN FONTOBJ *pfo,
OUT HGLYPH *phg
)
{
ULONG ulCount = 0;
HGLYPH *phgTmp = NULL;
ULONG ulRet = 0;
EXTRACT_THREAD_UMPDOBJS(0);
pfo = pUMObjs->GetDDIOBJ(pfo);
if (pfo)
{
if (phg)
{
if (ulCount = FONTOBJ_cGetAllGlyphHandles(pfo, NULL))
{
// we are a little bit over cautious here,well...
if (BALLOC_OVERFLOW1(ulCount, HGLYPH))
{
FIXUP_THREAD_UMPDOBJS;
return NULL;
}
phgTmp = (HGLYPH *)PALLOCNOZ(ulCount*sizeof(HGLYPH), UMPD_MEMORY_TAG);
}
}
ulRet = FONTOBJ_cGetAllGlyphHandles(pfo, phgTmp);
ASSERTGDI(phg == NULL || ulRet == ulCount, "NtGdiFONTOBJ_cGetAllGlyphHandles: inconsistent return values from FONTOBJ_cGetAllGlyphHandles\n");
if (ulRet && phg && phgTmp)
{
if (!bSafeCopyBits(phg, phgTmp, ulCount * sizeof(HGLYPH)))
ulRet = NULL;
}
if (phgTmp)
{
VFREEMEM(phgTmp);
}
}
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
XFORMOBJ* APIENTRY NtGdiFONTOBJ_pxoGetXform(
FONTOBJ *pfo
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
XFORMOBJ* xoRet= pUMObjs->GetFONTOBJXform(pfo);
FIXUP_THREAD_UMPDOBJS;
return xoRet;
}
//
// If the return value is a system address, we copy it into user memory
//
// IMPORTANT!!
// We assume FD_GLYPHSET information is stored in one contiguous block
// of memory and FD_GLYPHSET.cjThis field is the size of the entire block.
// HGLYPH arrays in each WCRUN are part of the block, placed just after
// FD_GLYPHSET structure itself.
//
BOOL
GreCopyFD_GLYPHSET(
FD_GLYPHSET *dst,
FD_GLYPHSET *src,
ULONG cjSize,
BOOL bFromKernel
)
{
ULONG size;
PBYTE phg, pbMax;
//
// bFromKernel TRUE: we are copying from kernel mode address(src) to user mode address (dst)
// the src should contain everything in one chunk of memory
//
// FALSE: copying from user mode (src) to kernel mode (dst)
// glyph indices in src might be stored in a different chunk of memory from src
//
size = bFromKernel ? cjSize : offsetof(FD_GLYPHSET, awcrun) + src->cRuns * sizeof(WCRUN);
RtlCopyMemory(dst, src, size);
dst->cjThis = cjSize;
pbMax = (PBYTE)dst + cjSize;
phg = (PBYTE)dst + size;
//
// Patch up memory pointers in each WCRUN structure
//
ULONG index, offset;
for (index=0; index < src->cRuns; index++)
{
if (src->awcrun[index].phg != NULL)
{
if (bFromKernel)
{
offset = (ULONG)((PBYTE) src->awcrun[index].phg - (PBYTE) src);
if (offset >= cjSize)
{
WARNING("GreCopyFD_GLYPHSET failed.\n");
return FALSE;
}
dst->awcrun[index].phg = (HGLYPH*) ((PBYTE) dst + offset);
}
else
{
size = src->awcrun[index].cGlyphs * sizeof(HGLYPH);
if (phg + size <= pbMax)
{
RtlCopyMemory(phg, src->awcrun[index].phg, size);
dst->awcrun[index].phg = (HGLYPH*) phg;
phg += size;
}
else
return FALSE;
}
}
}
return TRUE;
}
FD_GLYPHSET * APIENTRY NtGdiFONTOBJ_pfdg(
FONTOBJ *pfo
)
{
FD_GLYPHSET *pfdg = NULL, *pfdgTmp;
ULONG cjSize;
EXTRACT_THREAD_UMPDOBJS(NULL);
//
// Check if this function has already been
// called during the current DDI entrypoint
//
if (! (pfo = pUMObjs->GetDDIOBJ(pfo)) ||
(pfdg = pUMObjs->pfdg()) != NULL)
{
FIXUP_THREAD_UMPDOBJS;
return pfdg;
}
//
// Call FONTOBJ_pifi and cache the pointer in UMPDOBJ
//
RFONTTMPOBJ rfto(PFO_TO_PRF(pfo));
UMPDAcquireRFONTSem(rfto, pUMObjs, 0, 0, NULL);
pfdgTmp = NULL;
if ((pfdg = FONTOBJ_pfdg(pfo)) != NULL)
{
if (IS_SYSTEM_ADDRESS(pfdg))
{
if ((cjSize = SZ_GLYPHSET(pfdg->cRuns, pfdg->cGlyphsSupported)) &&
(pfdgTmp = (FD_GLYPHSET *) pUMObjs->AllocUserMem(cjSize)))
{
if (GreCopyFD_GLYPHSET(pfdgTmp, pfdg, cjSize, TRUE))
pUMObjs->pfdg(pfdgTmp);
else
pfdgTmp = NULL;
}
}
else
{
pfdgTmp = pfdg;
pUMObjs->pfdg(pfdgTmp);
}
}
UMPDReleaseRFONTSem(rfto, pUMObjs, NULL, NULL, NULL);
FIXUP_THREAD_UMPDOBJS;
return pfdgTmp;
}
PFD_GLYPHATTR APIENTRY NtGdiFONTOBJ_pQueryGlyphAttrs(
FONTOBJ *pfo,
ULONG iMode
)
{
PFD_GLYPHATTR pfdga, pfdgaTmp;
ULONG i;
EXTRACT_THREAD_UMPDOBJS(FALSE);
if ((pfo = pUMObjs->GetDDIOBJ(pfo)) == NULL)
{
WARNING("Invalid parameter passed to NtGdiFONTOBJ_pQueryGlyphAttrs\n");
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
pfdga = NULL;
if ((pfdgaTmp = pUMObjs->pfdga()) == NULL)
{
RFONTTMPOBJ rfto(PFO_TO_PRF(pfo));
UMPDAcquireRFONTSem(rfto, pUMObjs, 0, 0, NULL);
pfdgaTmp = FONTOBJ_pQueryGlyphAttrs(pfo, iMode);
if (pfdgaTmp)
{
ULONG cjSize;
cjSize = ((PFD_GLYPHATTR)pfdgaTmp)->cjThis;
pfdga = (PFD_GLYPHATTR) pUMObjs->AllocUserMem(cjSize);
if (pfdga)
{
RtlCopyMemory((PVOID) pfdga, (PVOID) pfdgaTmp, cjSize);
pUMObjs->pfdga(pfdga);
}
}
UMPDReleaseRFONTSem(rfto, pUMObjs, NULL, NULL, NULL);
}
else
pfdga = pfdgaTmp;
FIXUP_THREAD_UMPDOBJS;
return pfdga;
}
//
// if the return value is a system address, we copy it into user memory
//
IFIMETRICS * APIENTRY NtGdiFONTOBJ_pifi(
FONTOBJ *pfo
)
{
IFIMETRICS *pifi = NULL, *pifiTmp;
EXTRACT_THREAD_UMPDOBJS(NULL);
//
// Check if this function has already been
// called during the current DDI entrypoint
//
if (! (pfo = pUMObjs->GetDDIOBJ(pfo)) ||
(pifi = pUMObjs->pifi()) != NULL)
{
FIXUP_THREAD_UMPDOBJS;
return pifi;
}
//
// Call FONTOBJ_pifi and cache the pointer in UMPDOBJ
//
RFONTTMPOBJ rfto(PFO_TO_PRF(pfo));
UMPDAcquireRFONTSem(rfto, pUMObjs, 0, 0, NULL);
if ((pifi = FONTOBJ_pifi(pfo)) != NULL &&
IS_SYSTEM_ADDRESS(pifi))
{
pifiTmp = pifi;
pifi = (PIFIMETRICS) pUMObjs->AllocUserMem(pifi->cjThis);
if (pifi != NULL)
{
RtlCopyMemory (pifi, pifiTmp, pifiTmp->cjThis);
pUMObjs->pifi(pifi);
}
}
UMPDReleaseRFONTSem(rfto, pUMObjs, NULL, NULL, NULL);
FIXUP_THREAD_UMPDOBJS;
return pifi;
}
BOOL APIENTRY NtGdiSTROBJ_bEnumInternal(
STROBJ *pstro,
ULONG *pc,
PGLYPHPOS *ppgpos,
BOOL bPositionsOnly
)
{
GLYPHPOS *pgp, *pgpTmp;
ULONG c;
BOOL bRet;
EXTRACT_THREAD_UMPDOBJS(DDI_ERROR);
//
// bRet from STROBJ_bEnum could have 3 different values:
// TRUE: more glyphs remained to be enumurated
// FALSE: no more glyphs to be enumrated
// DDI_ERROR: failure
//
if ((pstro = pUMObjs->GetDDIOBJ(pstro)) == NULL ||
((bRet = bPositionsOnly ? STROBJ_bEnumPositionsOnly(pstro, &c, &pgp) : STROBJ_bEnum(pstro, &c, &pgp)) == DDI_ERROR))
{
FIXUP_THREAD_UMPDOBJS;
return DDI_ERROR;
}
else
{
// over cautious here
if (BALLOC_OVERFLOW1(c, GLYPHPOS) ||
(!(pgpTmp = (GLYPHPOS *) pUMObjs->AllocUserMem(sizeof(GLYPHPOS) * c))))
{
FIXUP_THREAD_UMPDOBJS;
return DDI_ERROR;
}
}
RtlCopyMemory(pgpTmp, pgp, sizeof(GLYPHPOS)*c);
__try
{
ProbeAndWriteStructure(ppgpos, pgpTmp, PVOID);
ProbeAndWriteUlong(pc, c);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("fail to write in ppgpos or pc\n");
c = 0;
bRet = FALSE;
}
//
// NULL out GLYPHPOS.pgdf field to force the driver
// to call FONTOBJ_cGetGlyphs.
//
for (ULONG i=0; i < c; i++)
pgpTmp[i].pgdf = NULL;
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
BOOL APIENTRY NtGdiSTROBJ_bEnum(
STROBJ *pstro,
ULONG *pc,
PGLYPHPOS *ppgpos
)
{
return NtGdiSTROBJ_bEnumInternal(pstro, pc, ppgpos, FALSE);
}
BOOL APIENTRY NtGdiSTROBJ_bEnumPositionsOnly(
STROBJ *pstro,
ULONG *pc,
PGLYPHPOS *ppgpos
)
{
return NtGdiSTROBJ_bEnumInternal(pstro, pc, ppgpos, TRUE);
}
BOOL APIENTRY NtGdiSTROBJ_bGetAdvanceWidths(
STROBJ *pstro,
ULONG iFirst,
ULONG c,
POINTQF *pptqD
)
{
BOOL bRet = FALSE;
POINTQF *pptqDTmp;
EXTRACT_THREAD_UMPDOBJS(FALSE);
if ((pstro = pUMObjs->GetDDIOBJ(pstro)) == NULL ||
BALLOC_OVERFLOW1(c, POINTQF) ||
!(pptqDTmp = (POINTQF *) pUMObjs->AllocUserMem(sizeof(POINTQF) * c)))
{
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
// kernel mode can not fail
bRet = STROBJ_bGetAdvanceWidths(pstro, iFirst, c, pptqDTmp);
if (bRet)
{
__try
{
ProbeAndWriteAlignedBuffer( pptqD, pptqDTmp, sizeof(POINTQF) * c, sizeof(LARGE_INTEGER));
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("fail to write in ppgpos or pc\n");
bRet = FALSE;
}
}
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
VOID APIENTRY NtGdiSTROBJ_vEnumStart(
IN STROBJ *pstro
)
{
EXTRACT_THREAD_UMPDOBJS;
if ((pstro = pUMObjs->GetDDIOBJ(pstro)) != NULL)
STROBJ_vEnumStart(pstro);
FIXUP_THREAD_UMPDOBJS;
}
DWORD APIENTRY NtGdiSTROBJ_dwGetCodePage(
STROBJ *pstro
)
{
EXTRACT_THREAD_UMPDOBJS(0);
DWORD dwRet = ((pstro = pUMObjs->GetDDIOBJ(pstro)) != NULL) ?
STROBJ_dwGetCodePage(pstro) :
0;
FIXUP_THREAD_UMPDOBJS;
return dwRet;
}
//
// private
//
DHPDEV NtGdiGetDhpdev(HDEV hdev)
{
return ValidUmpdHdev(hdev) ? ((PPDEV)hdev)->dhpdev : NULL;
}
BOOL NtGdiSetPUMPDOBJ(
HUMPD humpd,
BOOL bStoreID,
HUMPD *phumpd,
BOOL *pbWOW64
)
{
UMPDREF umpdRef(humpd);
if (
(bStoreID && humpd == NULL) ||
(bStoreID && umpdRef.pumpdGet() == NULL) ||
(!bStoreID && phumpd == NULL)
)
{
return FALSE;
}
PW32THREAD pw32thread = W32GetCurrentThread();
HUMPD hSaved = pw32thread->pUMPDObj ? (HUMPD)((PUMPDOBJ)pw32thread->pUMPDObj)->hGet() : 0;
HUMPD humpdTmp;
if (!bStoreID)
{
__try
{
ProbeAndReadBuffer(&humpdTmp,phumpd,sizeof(HUMPD));
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("NtGdiSetPUMPDOBJ probe phumpd failed\n");
return FALSE;
}
}
if (bStoreID)
{
BOOL bWOW64;
bWOW64 = umpdRef.bWOW64();
__try
{
if (pbWOW64)
{
ProbeAndWriteBuffer(pbWOW64, &bWOW64, sizeof(BOOL));
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("NtGdiSetPUMPDOBJ: bad pumpdobj or probe pbWOW64 failed\n");
return FALSE;
}
#if defined(_WIN64)
if (bWOW64)
{
ASSERTGDI(pw32thread->pClientID == NULL, "NtGdiSetPUMPDOBJ: existing non-null pClientID\n");
if (pw32thread->pClientID == NULL)
{
KERNEL_PVOID pclientID = (KERNEL_PVOID)PALLOCMEM(sizeof(PRINTCLIENTID), 'dipG');
if (pclientID)
{
__try
{
((PRINTCLIENTID*)pclientID)->clientTid = umpdRef.clientTid();
((PRINTCLIENTID*)pclientID)->clientPid = umpdRef.clientPid();
pw32thread->pClientID = pclientID;
ProbeAndWriteBuffer(phumpd, &hSaved, sizeof(HUMPD));
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("NtGdiSetPUMPDOBJ: wow64 failed to access pumpdobj or ppumpdobj\n");
pw32thread->pClientID = NULL;
VFREEMEM(pclientID);
return FALSE;
}
}
else
{
WARNING("NtGdiSetPUMPDOBJ: failed to allocate pclientID\n");
return FALSE;
}
}
else
{
WARNING("NtGdiSetPUMPDOBJ: bWOW64 and existing pClientID\n");
return FALSE;
}
}
else
#endif
{
__try
{
ProbeAndWriteBuffer(phumpd, &hSaved, sizeof(HUMPD));
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("NtGdiSetPUMPDOBJ: failed to access ppumpdobj\n");
return FALSE;
}
}
}
else
{
if (humpdTmp != hSaved)
{
WARNING("NtGdiSetPUMPDOBJ: mismatched pumpdobj\n");
return FALSE;
}
#if defined(_WIN64)
UMPDREF umpdSaved(hSaved);
ASSERTGDI(umpdSaved.pumpdGet(), "NtGdiSetPUMPDOBJ: saved pumpdobj is NULL\n");
if (umpdSaved.bWOW64() && pw32thread->pClientID)
{
VFREEMEM(pw32thread->pClientID);
pw32thread->pClientID = NULL;
}
#endif
}
pw32thread->pUMPDObj = umpdRef.pumpdGet();
return TRUE;
}
//
// private, called only for WOW64 printing
//
BOOL NtGdiBRUSHOBJ_DeleteRbrush(BRUSHOBJ *pbo, BRUSHOBJ *pboB)
{
EXTRACT_THREAD_UMPDOBJS(FALSE);
BRUSHOBJ *pbokm;
if (pbo)
{
pbokm = pUMObjs->GetDDIOBJ(pbo);
if (pbokm && pbokm->pvRbrush && !IS_SYSTEM_ADDRESS(pbokm->pvRbrush))
{
EngFreeUserMem(DBRUSHSTART(pbokm->pvRbrush));
pbokm->pvRbrush = NULL;
}
}
if (pboB)
{
pbokm = pUMObjs->GetDDIOBJ(pboB);
if (pbokm && pbokm->pvRbrush && !IS_SYSTEM_ADDRESS(pbokm->pvRbrush))
{
EngFreeUserMem(DBRUSHSTART(pbokm->pvRbrush));
pbokm->pvRbrush = NULL;
}
}
FIXUP_THREAD_UMPDOBJS;
return TRUE;
}
// Private, used only for WOW64 printing
BOOL APIENTRY NtGdiUMPDEngFreeUserMem(KERNEL_PVOID *ppv)
{
#if defined(_WIN64)
PVOID pv = NULL, pvTmp;
__try
{
if (ppv)
{
ProbeAndReadBuffer(&pv, ppv, sizeof(PVOID));
ProbeForRead(pv, sizeof(ULONG), sizeof(ULONG));
// Winbug 397346
// We are doing the following probing since EngFreeUserMem
// does NOT try-except/probe while accessing pvTmp.
pvTmp = (PBYTE)pv - sizeof(ULONG_PTR)*4;
ProbeForRead(pvTmp, sizeof(ULONG_PTR)*4, sizeof(ULONG_PTR));
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("NtGdiUMPDEngFreeUserMem: bad input pointer\n");
return FALSE;
}
if (pv)
EngFreeUserMem(pv);
#endif
return TRUE;
}
HSURF APIENTRY NtGdiEngCreateDeviceSurface(
DHSURF dhsurf,
SIZEL sizl,
ULONG iFormatCompat
)
{
TRACE_INIT (("Entering NtGdiEngCreateDeviceSurface\n"));
if ((iFormatCompat > BMF_8RLE) || (iFormatCompat < BMF_1BPP))
return 0;
//
// set high bit of iFormatCompat to indicate umpd driver
//
return (EngCreateDeviceSurface(dhsurf, sizl, iFormatCompat|= UMPD_FLAG));
}
HBITMAP APIENTRY NtGdiEngCreateDeviceBitmap(
DHSURF dhsurf,
SIZEL sizl,
ULONG iFormatCompat
)
{
if (!ValidUmpdSizl(sizl))
return 0;
if ((iFormatCompat > BMF_8RLE) || (iFormatCompat < BMF_1BPP))
return 0;
return EngCreateDeviceBitmap(dhsurf, sizl, iFormatCompat | UMPD_FLAG);
}
VOID APIENTRY NtGdiPATHOBJ_vGetBounds(
IN PATHOBJ *ppo,
OUT PRECTFX prectfx
)
{
RECTFX rectfx;
EXTRACT_THREAD_UMPDOBJS;
ppo = pUMObjs->GetDDIOBJ(ppo);
if (ppo)
{
PATHOBJ_vGetBounds(ppo, &rectfx);
__try
{
ProbeAndWriteStructure(prectfx, rectfx, RECTFX);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("fail to write into prectfx\n");
}
}
FIXUP_THREAD_UMPDOBJS;
}
BOOL APIENTRY NtGdiPATHOBJ_bEnum(
IN PATHOBJ *ppo,
OUT PATHDATA *ppd
)
{
PATHDATA pathdata;
BOOL bRet = FALSE;
PVOID pvTmp = NULL;
EXTRACT_THREAD_UMPDOBJS(FALSE);
if (ppo = pUMObjs->GetDDIOBJ(ppo))
{
bRet = PATHOBJ_bEnum(ppo, &pathdata);
// over cautious
if (BALLOC_OVERFLOW1(pathdata.count, POINTFIX))
{
FIXUP_THREAD_UMPDOBJS;
return FALSE;
}
if (pvTmp = pUMObjs->AllocUserMem(sizeof(POINTFX) * pathdata.count))
{
RtlCopyMemory(pvTmp, pathdata.pptfx, sizeof(POINTFX) * pathdata.count);
pathdata.pptfx = (POINTFIX *) pvTmp;
}
else
bRet = FALSE;
}
if (pvTmp == NULL)
RtlZeroMemory(&pathdata, sizeof(pathdata));
__try
{
ProbeAndWriteStructure(ppd, pathdata, PATHDATA);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("fail to write into ppd\n");
bRet = FALSE;
}
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
VOID APIENTRY NtGdiPATHOBJ_vEnumStart(
IN PATHOBJ *ppo
)
{
EXTRACT_THREAD_UMPDOBJS;
if ((ppo = pUMObjs->GetDDIOBJ(ppo)) != NULL)
PATHOBJ_vEnumStart(ppo);
FIXUP_THREAD_UMPDOBJS;
}
VOID APIENTRY NtGdiPATHOBJ_vEnumStartClipLines(
PATHOBJ *ppo,
CLIPOBJ *pco,
SURFOBJ *pso,
LINEATTRS *pla
)
{
LINEATTRS lineattrs;
EXTRACT_THREAD_UMPDOBJS;
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
ppo = pUMObjs->GetDDIOBJ(ppo);
if (pso && ppo && bCaptureLINEATTRS(&pla, &lineattrs))
{
pco = pUMObjs->GetDDIOBJ(pco, &pso->sizlBitmap);
PATHOBJ_vEnumStartClipLines(ppo, pco, pso, pla);
if (pla && pla->pstyle)
VFREEMEM(pla->pstyle);
}
FIXUP_THREAD_UMPDOBJS;
}
BOOL APIENTRY NtGdiPATHOBJ_bEnumClipLines(
PATHOBJ *ppo,
ULONG cb,
CLIPLINE *pcl
)
{
BOOL bRet = FALSE;
PVOID pvTmp = NULL;
EXTRACT_THREAD_UMPDOBJS(FALSE);
if (cb <= sizeof(CLIPLINE))
{
FIXUP_THREAD_UMPDOBJS;
return(FALSE);
}
if ((ppo = pUMObjs->GetDDIOBJ(ppo)) != NULL &&
(pvTmp = PALLOCNOZ(cb, UMPD_MEMORY_TAG)) != NULL)
{
bRet = PATHOBJ_bEnumClipLines(ppo, cb, (CLIPLINE *) pvTmp);
}
__try
{
ProbeForWrite(pcl, cb, sizeof(ULONG));
if (pvTmp != NULL)
RtlCopyMemory(pcl, pvTmp, cb);
else
RtlZeroMemory(pcl, cb);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
bRet = FALSE;
}
if (pvTmp != NULL)
VFREEMEM(pvTmp);
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
PVOID APIENTRY NtGdiFONTOBJ_pvTrueTypeFontFile(
IN FONTOBJ *pfo,
OUT ULONG *pcjFile
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
PVOID pBase, p = NULL;
ULONG size;
if ((pfo = pUMObjs->GetDDIOBJ(pfo)) != NULL &&
(p = pUMObjs->pvFontFile(&size)) == NULL &&
(p = FONTOBJ_pvTrueTypeFontFileUMPD(pfo, &size, &pBase)) != NULL)
{
pUMObjs->pvFontFile(p, pBase, size);
}
if (p == NULL)
size = 0;
if (pcjFile != NULL)
{
__try
{
ProbeAndWriteStructure(pcjFile, size, DWORD);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
WARNING("fail to write into pcjFilie\n");
p = NULL;
}
}
FIXUP_THREAD_UMPDOBJS;
return p;
}
HANDLE APIENTRY NtGdiXLATEOBJ_hGetColorTransform(
XLATEOBJ *pxlo
)
{
EXTRACT_THREAD_UMPDOBJS(NULL);
HANDLE hRet = ((pxlo = pUMObjs->GetDDIOBJ(pxlo)) != NULL) ?
XLATEOBJ_hGetColorTransform(pxlo) :
NULL;
FIXUP_THREAD_UMPDOBJS;
return hRet;
}
ULONG APIENTRY NtGdiXLATEOBJ_cGetPalette(
IN XLATEOBJ* pxlo,
IN ULONG iPal,
IN ULONG cPal,
IN ULONG *pPal
)
{
ULONG ulRet = 0;
ULONG *pPalTmp = NULL;
EXTRACT_THREAD_UMPDOBJS(0);
pxlo = pUMObjs->GetDDIOBJ(pxlo);
if (pxlo)
{
if (pPal)
{
if (BALLOC_OVERFLOW1(cPal, DWORD))
{
FIXUP_THREAD_UMPDOBJS;
return 0;
}
pPalTmp = (PULONG)PALLOCNOZ(sizeof(DWORD)*cPal, UMPD_MEMORY_TAG);
}
if (pPalTmp)
{
ulRet = XLATEOBJ_cGetPalette(pxlo, iPal, cPal, pPalTmp);
if (ulRet)
{
if (!bSafeCopyBits(pPal, pPalTmp, sizeof(DWORD)*cPal))
ulRet = 0;
}
VFREEMEM(pPalTmp);
}
}
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
ULONG APIENTRY NtGdiXLATEOBJ_iXlate(
IN XLATEOBJ *pxlo,
IN ULONG iColor
)
{
EXTRACT_THREAD_UMPDOBJS(0xffffffff);
ULONG ulRet = ((pxlo = pUMObjs->GetDDIOBJ(pxlo)) != NULL ? XLATEOBJ_iXlate(pxlo, iColor) : NULL);
FIXUP_THREAD_UMPDOBJS;
return ulRet;
}
BOOL APIENTRY NtGdiEngCheckAbort(
SURFOBJ *pso
)
{
EXTRACT_THREAD_UMPDOBJS(TRUE);
UMPDSURFOBJ umso(pso, pUMObjs);
pso = umso.pso();
BOOL bRet = pso ? EngCheckAbort(pso) : TRUE;
FIXUP_THREAD_UMPDOBJS;
return bRet;
}
//
// Ported from EngComputeGlyphSet with necessary changes
//
FD_GLYPHSET* APIENTRY NtGdiEngComputeGlyphSet(
INT nCodePage,
INT nFirstChar,
INT cChars
)
{
FD_GLYPHSET *pGlyphSet, *pGlyphSetTmp = NULL;
ULONG cjSize;
EXTRACT_THREAD_UMPDOBJS(NULL);
//
// Call kernel-mode EngComputeGlyphSet first and then copy
// the FD_GLYPHSET structure into a temporary user-mode buffer
//
if ((pGlyphSet = EngComputeGlyphSet(nCodePage, nFirstChar, cChars)) &&
(cjSize = pGlyphSet->cjThis) &&
(pGlyphSetTmp = (PFD_GLYPHSET) pUMObjs->AllocUserMem(cjSize)))
{
if (!GreCopyFD_GLYPHSET(pGlyphSetTmp, pGlyphSet, cjSize, TRUE))
pGlyphSetTmp = NULL;
}
//
// Free the kernel copy of the FD_GLYPHSET structure right away
//
if (pGlyphSet)
EngFreeMem(pGlyphSet);
FIXUP_THREAD_UMPDOBJS;
return (pGlyphSetTmp);
}
LONG APIENTRY NtGdiHT_Get8BPPFormatPalette(
LPPALETTEENTRY pPaletteEntry,
USHORT RedGamma,
USHORT GreenGamma,
USHORT BlueGamma
)
{
if (pPaletteEntry)
{
LPPALETTEENTRY pPal = NULL;
ULONG ulRet = 0;
ULONG c = HT_Get8BPPFormatPalette(NULL, RedGamma, GreenGamma, BlueGamma);
if (c)
{
if (BALLOC_OVERFLOW1(c, PALETTEENTRY))
return 0;
pPal = (LPPALETTEENTRY)PALLOCNOZ(c*sizeof(PALETTEENTRY), UMPD_MEMORY_TAG);
}
if (pPal)
{
ulRet = HT_Get8BPPFormatPalette(pPal, RedGamma, GreenGamma, BlueGamma);
if (!bSafeCopyBits(pPaletteEntry, pPal, c*sizeof(PALETTEENTRY)))
ulRet = 0;
VFREEMEM(pPal);
}
return ulRet;
}
else
return HT_Get8BPPFormatPalette(NULL, RedGamma, GreenGamma, BlueGamma);
}
LONG APIENTRY NtGdiHT_Get8BPPMaskPalette(
LPPALETTEENTRY pPaletteEntry,
BOOL Use8BPPMaskPal,
BYTE CMYMask,
USHORT RedGamma,
USHORT GreenGamma,
USHORT BlueGamma
)
{
LONG c = HT_Get8BPPMaskPalette(NULL, Use8BPPMaskPal, CMYMask, RedGamma, GreenGamma, BlueGamma);
if (pPaletteEntry) {
LPPALETTEENTRY pPal = NULL;
LONG cbPal;
if (((cbPal = c * sizeof(PALETTEENTRY)) > 0) &&
(!BALLOC_OVERFLOW1(c, PALETTEENTRY)) &&
(pPal = (LPPALETTEENTRY)PALLOCNOZ(cbPal, UMPD_MEMORY_TAG)) &&
(bSafeReadBits(pPal, pPaletteEntry, cbPal)) &&
(c = HT_Get8BPPMaskPalette(pPal,
Use8BPPMaskPal,
CMYMask,
RedGamma,
GreenGamma,
BlueGamma)) &&
(bSafeCopyBits(pPaletteEntry, pPal, cbPal))) {
NULL;
} else {
c = 0;
}
if (pPal) {
VFREEMEM(pPal);
}
}
return(c);
}
#endif // !_GDIPLUS_