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reactos/subsystems/win32/win32k/objects/dclife.c
Jérôme Gardou c7b7713c5d [WIN32K] 
- Initialize virtual device coordinates when creating a DC
All gdi32::mapping tests pass now

svn path=/branches/reactos-yarotows/; revision=47352
2010-05-25 14:41:44 +00:00

971 lines
25 KiB
C
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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Functions for creation and destruction of DCs
* FILE: subsystem/win32/win32k/objects/dclife.c
* PROGRAMER: Timo Kreuzer (timo.kreuzer@rectos.org)
*/
#include <win32k.h>
#include <bugcodes.h>
#define NDEBUG
#include <debug.h>
//FIXME: windows uses 0x0012009f
#define DIRTY_DEFAULT DIRTY_CHARSET|DIRTY_BACKGROUND|DIRTY_TEXT|DIRTY_LINE|DIRTY_FILL
PSURFACE psurfDefaultBitmap = NULL;
PBRUSH pbrDefaultBrush = NULL;
// FIXME: these should go to floatobj.h or something
#define FLOATOBJ_0 {0x00000000, 0x00000000}
#define FLOATOBJ_1 {0x40000000, 0x00000002}
#define FLOATOBJ_16 {0x40000000, 0x00000006}
#define FLOATOBJ_1_16 {0x40000000, 0xfffffffe}
static const FLOATOBJ gef0 = FLOATOBJ_0;
static const FLOATOBJ gef1 = FLOATOBJ_1;
static const FLOATOBJ gef16 = FLOATOBJ_16;
static const MATRIX gmxWorldToDeviceDefault =
{
FLOATOBJ_16, FLOATOBJ_0,
FLOATOBJ_0, FLOATOBJ_16,
FLOATOBJ_0, FLOATOBJ_0,
0, 0, 0x4b
};
static const MATRIX gmxDeviceToWorldDefault =
{
FLOATOBJ_1_16, FLOATOBJ_0,
FLOATOBJ_0, FLOATOBJ_1_16,
FLOATOBJ_0, FLOATOBJ_0,
0, 0, 0x53
};
static const MATRIX gmxWorldToPageDefault =
{
FLOATOBJ_1, FLOATOBJ_0,
FLOATOBJ_0, FLOATOBJ_1,
FLOATOBJ_0, FLOATOBJ_0,
0, 0, 0x63
};
// HACK!! Fix XFORMOBJ then use 1:16 / 16:1
#define gmxWorldToDeviceDefault gmxWorldToPageDefault
#define gmxDeviceToWorldDefault gmxWorldToPageDefault
/** Internal functions ********************************************************/
NTSTATUS
InitDcImpl()
{
psurfDefaultBitmap = SURFACE_ShareLockSurface(StockObjects[DEFAULT_BITMAP]);
if (!psurfDefaultBitmap)
return STATUS_UNSUCCESSFUL;
pbrDefaultBrush = BRUSH_ShareLockBrush(StockObjects[BLACK_BRUSH]);
if (!pbrDefaultBrush)
return STATUS_UNSUCCESSFUL;
return STATUS_SUCCESS;
}
PDC
NTAPI
DC_AllocDcWithHandle()
{
PDC pdc;
pdc = (PDC)GDIOBJ_AllocObjWithHandle(GDILoObjType_LO_DC_TYPE);
pdc->pdcattr = &pdc->dcattr;
return pdc;
}
void
DC_InitHack(PDC pdc)
{
HRGN hVisRgn;
TextIntRealizeFont(pdc->pdcattr->hlfntNew,NULL);
pdc->pdcattr->iCS_CP = ftGdiGetTextCharsetInfo(pdc,NULL,0);
/* This should never fail */
ASSERT(pdc->dclevel.ppal);
/* Select regions */
// FIXME: too complicated, broken error handling
pdc->rosdc.hClipRgn = NULL;
pdc->rosdc.hGCClipRgn = NULL;
hVisRgn = NtGdiCreateRectRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
ASSERT(hVisRgn);
GdiSelectVisRgn(pdc->BaseObject.hHmgr, hVisRgn);
GreDeleteObject(hVisRgn);
ASSERT(pdc->prgnVis);
}
VOID
NTAPI
DC_vInitDc(
PDC pdc,
DCTYPE dctype,
PPDEVOBJ ppdev)
{
/* Setup some basic fields */
pdc->dctype = dctype;
pdc->ppdev = ppdev;
pdc->dhpdev = ppdev->dhpdev;
pdc->hsem = ppdev->hsemDevLock;
pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
pdc->fs = DC_DIRTY_RAO;
/* Setup dc attribute */
pdc->pdcattr = &pdc->dcattr;
pdc->dcattr.pvLDC = NULL;
pdc->dcattr.ulDirty_ = DIRTY_DEFAULT;
if (ppdev == gppdevPrimary)
pdc->dcattr.ulDirty_ |= DC_PRIMARY_DISPLAY;
/* Setup the DC size */
if (dctype == DCTYPE_MEMORY)
{
/* Memory DCs have a 1 x 1 bitmap by default */
pdc->dclevel.sizl.cx = 1;
pdc->dclevel.sizl.cy = 1;
}
else
{
/* Other DC's are as big as the related PDEV */
pdc->dclevel.sizl.cx = ppdev->gdiinfo.ulHorzRes;
pdc->dclevel.sizl.cy = ppdev->gdiinfo.ulVertRes;
}
/* Setup Window rect based on DC size */
pdc->erclWindow.left = 0;
pdc->erclWindow.top = 0;
pdc->erclWindow.right = pdc->dclevel.sizl.cx;
pdc->erclWindow.bottom = pdc->dclevel.sizl.cy;
if (dctype == DCTYPE_DIRECT)
{
/* Direct DCs get the surface from the PDEV */
pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
pdc->erclBounds.left = 0x7fffffff;
pdc->erclBounds.top = 0x7fffffff;
pdc->erclBounds.right = 0x80000000;
pdc->erclBounds.bottom = 0x80000000;
pdc->erclBoundsApp.left = 0xffffffff;
pdc->erclBoundsApp.top = 0xfffffffc;
pdc->erclBoundsApp.right = 0x00007ffc; // FIXME
pdc->erclBoundsApp.bottom = 0x00000333; // FIXME
pdc->erclClip = pdc->erclBounds;
// pdc->co
pdc->fs |= DC_SYNCHRONIZEACCESS | DC_ACCUM_APP | DC_PERMANANT | DC_DISPLAY;
}
else
{
/* Non-direct DCs don't have a surface by default */
pdc->dclevel.pSurface = NULL;
// FIXME: HACK, because our code expects a surface
pdc->dclevel.pSurface = SURFACE_ShareLockSurface(StockObjects[DEFAULT_BITMAP]);
pdc->erclBounds.left = 0;
pdc->erclBounds.top = 0;
pdc->erclBounds.right = 0;
pdc->erclBounds.bottom = 0;
pdc->erclBoundsApp = pdc->erclBounds;
pdc->erclClip = pdc->erclWindow;
// pdc->co = NULL
}
// pdc->dcattr.VisRectRegion:
/* Setup coordinate transformation data */
pdc->dclevel.mxWorldToDevice = gmxWorldToDeviceDefault;
pdc->dclevel.mxDeviceToWorld = gmxDeviceToWorldDefault;
pdc->dclevel.mxWorldToPage = gmxWorldToPageDefault;
pdc->dclevel.efM11PtoD = gef16;
pdc->dclevel.efM22PtoD = gef16;
pdc->dclevel.efDxPtoD = gef0;
pdc->dclevel.efDyPtoD = gef0;
pdc->dclevel.efM11_TWIPS = gef0;
pdc->dclevel.efM22_TWIPS = gef0;
pdc->dclevel.efPr11 = gef0;
pdc->dclevel.efPr22 = gef0;
pdc->dcattr.mxWorldToDevice = pdc->dclevel.mxWorldToDevice;
pdc->dcattr.mxDeviceToWorld = pdc->dclevel.mxDeviceToWorld;
pdc->dcattr.mxWorldToPage = pdc->dclevel.mxWorldToPage;
pdc->dcattr.efM11PtoD = pdc->dclevel.efM11PtoD;
pdc->dcattr.efM22PtoD = pdc->dclevel.efM22PtoD;
pdc->dcattr.efDxPtoD = pdc->dclevel.efDxPtoD;
pdc->dcattr.efDyPtoD = pdc->dclevel.efDyPtoD;
pdc->dcattr.iMapMode = MM_TEXT;
pdc->dcattr.dwLayout = 0;
pdc->dcattr.flXform = PAGE_TO_DEVICE_SCALE_IDENTITY |
PAGE_TO_DEVICE_IDENTITY |
WORLD_TO_PAGE_IDENTITY;
/* Setup more coordinates */
pdc->ptlDCOrig.x = 0;
pdc->ptlDCOrig.y = 0;
pdc->dcattr.lWindowOrgx = 0;
pdc->dcattr.ptlWindowOrg.x = 0;
pdc->dcattr.ptlWindowOrg.y = 0;
pdc->dcattr.szlWindowExt.cx = 1;
pdc->dcattr.szlWindowExt.cy = 1;
pdc->dcattr.ptlViewportOrg.x = 0;
pdc->dcattr.ptlViewportOrg.y = 0;
pdc->dcattr.szlViewportExt.cx = 1;
pdc->dcattr.szlViewportExt.cy = 1;
pdc->dcattr.szlVirtualDevicePixel.cx = ppdev->gdiinfo.ulHorzRes;
pdc->dcattr.szlVirtualDevicePixel.cy = ppdev->gdiinfo.ulVertRes;
pdc->dcattr.szlVirtualDeviceMm.cx = ppdev->gdiinfo.ulHorzSize;
pdc->dcattr.szlVirtualDeviceMm.cy = ppdev->gdiinfo.ulVertSize;
pdc->dcattr.szlVirtualDeviceSize.cx = 0;
pdc->dcattr.szlVirtualDeviceSize.cy = 0;
/* Setup regions */
pdc->prgnAPI = NULL;
pdc->prgnVis = NULL; // FIXME
pdc->prgnRao = NULL;
/* Setup palette */
pdc->dclevel.hpal = StockObjects[DEFAULT_PALETTE];
pdc->dclevel.ppal = PALETTE_ShareLockPalette(pdc->dclevel.hpal);
/* Setup path */
pdc->dclevel.hPath = NULL;
pdc->dclevel.flPath = 0;
// pdc->dclevel.lapath:
/* Setup colors */
pdc->dcattr.crBackgroundClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.ulBackgroundClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.crForegroundClr = RGB(0, 0, 0);
pdc->dcattr.ulForegroundClr = RGB(0, 0, 0);
pdc->dcattr.crBrushClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.ulBrushClr = RGB(0xff, 0xff, 0xff);
pdc->dcattr.crPenClr = RGB(0, 0, 0);
pdc->dcattr.ulPenClr = RGB(0, 0, 0);
/* Select the default fill and line brush */
pdc->dcattr.hbrush = StockObjects[WHITE_BRUSH];
pdc->dcattr.hpen = StockObjects[BLACK_PEN];
pdc->dclevel.pbrFill = BRUSH_ShareLockBrush(pdc->pdcattr->hbrush);
pdc->dclevel.pbrLine = PEN_ShareLockPen(pdc->pdcattr->hpen);
pdc->dclevel.ptlBrushOrigin.x = 0;
pdc->dclevel.ptlBrushOrigin.y = 0;
pdc->dcattr.ptlBrushOrigin = pdc->dclevel.ptlBrushOrigin;
/* Initialize EBRUSHOBJs */
EBRUSHOBJ_vInit(&pdc->eboFill, pdc->dclevel.pbrFill, pdc);
EBRUSHOBJ_vInit(&pdc->eboLine, pdc->dclevel.pbrLine, pdc);
EBRUSHOBJ_vInit(&pdc->eboText, pbrDefaultBrush, pdc);
EBRUSHOBJ_vInit(&pdc->eboBackground, pbrDefaultBrush, pdc);
/* Setup fill data */
pdc->dcattr.jROP2 = R2_COPYPEN;
pdc->dcattr.jBkMode = 2;
pdc->dcattr.lBkMode = 2;
pdc->dcattr.jFillMode = ALTERNATE;
pdc->dcattr.lFillMode = 1;
pdc->dcattr.jStretchBltMode = 1;
pdc->dcattr.lStretchBltMode = 1;
pdc->ptlFillOrigin.x = 0;
pdc->ptlFillOrigin.y = 0;
/* Setup drawing position */
pdc->dcattr.ptlCurrent.x = 0;
pdc->dcattr.ptlCurrent.y = 0;
pdc->dcattr.ptfxCurrent.x = 0;
pdc->dcattr.ptfxCurrent.y = 0;
/* Setup ICM data */
pdc->dclevel.lIcmMode = 0;
pdc->dcattr.lIcmMode = 0;
pdc->dcattr.hcmXform = NULL;
pdc->dcattr.flIcmFlags = 0;
pdc->dcattr.IcmBrushColor = CLR_INVALID;
pdc->dcattr.IcmPenColor = CLR_INVALID;
pdc->dcattr.pvLIcm = NULL;
pdc->dcattr.hColorSpace = NULL; // FIXME: 0189001f
pdc->dclevel.pColorSpace = NULL; // FIXME
pdc->pClrxFormLnk = NULL;
// pdc->dclevel.ca =
/* Setup font data */
pdc->hlfntCur = NULL; // FIXME: 2f0a0cf8
pdc->pPFFList = NULL;
pdc->flSimulationFlags = 0;
pdc->lEscapement = 0;
pdc->prfnt = NULL;
pdc->dcattr.flFontMapper = 0;
pdc->dcattr.flTextAlign = 0;
pdc->dcattr.lTextAlign = 0;
pdc->dcattr.lTextExtra = 0;
pdc->dcattr.lRelAbs = 1;
pdc->dcattr.lBreakExtra = 0;
pdc->dcattr.cBreak = 0;
pdc->dcattr.hlfntNew = StockObjects[SYSTEM_FONT];
// pdc->dclevel.pFont = LFONT_ShareLockFont(pdc->dcattr.hlfntNew);
/* Other stuff */
pdc->hdcNext = NULL;
pdc->hdcPrev = NULL;
pdc->ipfdDevMax = 0x0000ffff;
pdc->ulCopyCount = -1;
pdc->ptlDoBanding.x = 0;
pdc->ptlDoBanding.y = 0;
pdc->dclevel.lSaveDepth = 1;
pdc->dclevel.hdcSave = NULL;
pdc->dcattr.iGraphicsMode = GM_COMPATIBLE;
pdc->dcattr.iCS_CP = 0;
pdc->pSurfInfo = NULL;
}
BOOL
INTERNAL_CALL
DC_Cleanup(PVOID ObjectBody)
{
PDC pdc = (PDC)ObjectBody;
/* Free DC_ATTR */
DC_vFreeDcAttr(pdc);
/* Delete saved DCs */
DC_vRestoreDC(pdc, 1);
/* Deselect dc objects */
DC_vSelectSurface(pdc, NULL);
DC_vSelectFillBrush(pdc, NULL);
DC_vSelectLineBrush(pdc, NULL);
DC_vSelectPalette(pdc, NULL);
/* Cleanup the dc brushes */
EBRUSHOBJ_vCleanup(&pdc->eboFill);
EBRUSHOBJ_vCleanup(&pdc->eboLine);
EBRUSHOBJ_vCleanup(&pdc->eboText);
EBRUSHOBJ_vCleanup(&pdc->eboBackground);
/* Free regions */
if (pdc->rosdc.hClipRgn)
GreDeleteObject(pdc->rosdc.hClipRgn);
if (pdc->prgnVis)
REGION_FreeRgnByHandle(pdc->prgnVis->BaseObject.hHmgr);
if (pdc->rosdc.hGCClipRgn)
GreDeleteObject(pdc->rosdc.hGCClipRgn);
if (NULL != pdc->rosdc.CombinedClip)
IntEngDeleteClipRegion(pdc->rosdc.CombinedClip);
PATH_Delete(pdc->dclevel.hPath);
if(pdc->dclevel.pSurface)
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
PDEVOBJ_vRelease(pdc->ppdev) ;
return TRUE;
}
BOOL
FASTCALL
DC_SetOwnership(HDC hDC, PEPROCESS Owner)
{
INT Index;
PGDI_TABLE_ENTRY Entry;
PDC pDC;
BOOL ret = FALSE;
/* FIXME: This function has broken error handling */
if (!GDIOBJ_SetOwnership(hDC, Owner))
{
DPRINT1("GDIOBJ_SetOwnership failed\n");
return FALSE;
}
pDC = DC_LockDc(hDC);
if (!pDC)
{
DPRINT1("Could not lock DC\n");
return FALSE;
}
/*
System Regions:
These regions do not use attribute sections and when allocated, use
gdiobj level functions.
*/
if (pDC->rosdc.hClipRgn)
{ // FIXME! HAX!!!
Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hClipRgn);
Entry = &GdiHandleTable->Entries[Index];
if (Entry->UserData) FreeObjectAttr(Entry->UserData);
Entry->UserData = NULL;
//
if (!GDIOBJ_SetOwnership(pDC->rosdc.hClipRgn, Owner)) goto leave;
}
if (pDC->prgnVis)
{ // FIXME! HAX!!!
Index = GDI_HANDLE_GET_INDEX(pDC->prgnVis->BaseObject.hHmgr);
Entry = &GdiHandleTable->Entries[Index];
if (Entry->UserData) FreeObjectAttr(Entry->UserData);
Entry->UserData = NULL;
//
if (!GDIOBJ_SetOwnership(pDC->prgnVis->BaseObject.hHmgr, Owner)) goto leave;
}
if (pDC->rosdc.hGCClipRgn)
{ // FIXME! HAX!!!
Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hGCClipRgn);
Entry = &GdiHandleTable->Entries[Index];
if (Entry->UserData) FreeObjectAttr(Entry->UserData);
Entry->UserData = NULL;
//
if (!GDIOBJ_SetOwnership(pDC->rosdc.hGCClipRgn, Owner)) goto leave;
}
if (pDC->dclevel.hPath)
{
if (!GDIOBJ_SetOwnership(pDC->dclevel.hPath, Owner)) goto leave;
}
ret = TRUE;
leave:
DC_UnlockDc(pDC);
return ret;
}
int FASTCALL
CLIPPING_UpdateGCRegion(DC* Dc);
static
void
DC_vUpdateDC(PDC pdc)
{
HRGN hVisRgn ;
PPDEVOBJ ppdev = pdc->ppdev ;
pdc->dhpdev = ppdev->dhpdev;
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
PDEVOBJ_sizl(pdc->ppdev, &pdc->dclevel.sizl);
hVisRgn = NtGdiCreateRectRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
ASSERT(hVisRgn);
GdiSelectVisRgn(pdc->BaseObject.hHmgr, hVisRgn);
GreDeleteObject(hVisRgn);
pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
/* Mark EBRUSHOBJs as dirty */
pdc->pdcattr->ulDirty_ |= DIRTY_DEFAULT ;
}
/* Prepare a blit for up to 2 DCs */
/* rc1 and rc2 are the rectangles where we want to draw or
* from where we take pixels. */
VOID
FASTCALL
DC_vPrepareDCsForBlit(PDC pdc1,
RECT rc1,
PDC pdc2,
RECT rc2)
{
PDC pdcFirst, pdcSecond;
PRECT prcFirst, prcSecond;
/* Lock them in good order */
if(pdc2)
{
if((ULONG_PTR)pdc1->ppdev->hsemDevLock >= (ULONG_PTR)pdc2->ppdev->hsemDevLock)
{
pdcFirst = pdc1;
prcFirst = &rc1;
pdcSecond = pdc2;
prcSecond = &rc2;
}
else
{
pdcFirst = pdc2;
prcFirst = &rc2;
pdcSecond = pdc1;
prcSecond = &rc1;
}
}
else
{
pdcFirst = pdc1 ;
prcFirst = &rc1;
pdcSecond = NULL ;
}
if(pdcFirst && pdcFirst->dctype == DCTYPE_DIRECT)
{
EngAcquireSemaphore(pdcFirst->ppdev->hsemDevLock);
MouseSafetyOnDrawStart(pdcFirst->ppdev,
prcFirst->left,
prcFirst->top,
prcFirst->right,
prcFirst->bottom) ;
/* Update surface if needed */
if(pdcFirst->ppdev->pSurface != pdcFirst->dclevel.pSurface)
{
DC_vUpdateDC(pdcFirst);
}
}
if(pdcSecond && pdcSecond->dctype == DCTYPE_DIRECT)
{
EngAcquireSemaphore(pdcSecond->ppdev->hsemDevLock);
MouseSafetyOnDrawStart(pdcSecond->ppdev,
prcSecond->left,
prcSecond->top,
prcSecond->right,
prcSecond->bottom) ;
/* Update surface if needed */
if(pdcSecond->ppdev->pSurface != pdcSecond->dclevel.pSurface)
{
DC_vUpdateDC(pdcSecond);
}
}
}
/* Finishes a blit for one or two DCs */
VOID
FASTCALL
DC_vFinishBlit(PDC pdc1, PDC pdc2)
{
if(pdc1->dctype == DCTYPE_DIRECT)
{
MouseSafetyOnDrawEnd(pdc1->ppdev);
EngReleaseSemaphore(pdc1->ppdev->hsemDevLock);
}
if(pdc2)
{
if(pdc2->dctype == DCTYPE_DIRECT)
{
MouseSafetyOnDrawEnd(pdc2->ppdev);
EngReleaseSemaphore(pdc2->ppdev->hsemDevLock);
}
}
}
HDC
NTAPI
GreOpenDCW(
PUNICODE_STRING pustrDevice,
DEVMODEW *pdmInit,
PUNICODE_STRING pustrLogAddr,
ULONG iType,
BOOL bDisplay,
HANDLE hspool,
VOID *pDriverInfo2,
VOID *pUMdhpdev)
{
PPDEVOBJ ppdev;
PDC pdc;
HDC hdc;
DPRINT("GreOpenDCW(%S, iType=%ld)\n",
pustrDevice ? pustrDevice->Buffer : NULL, iType);
/* Get a PDEVOBJ for the device */
ppdev = EngpGetPDEV(pustrDevice);
if (!ppdev)
{
DPRINT1("Didn't find a suitable PDEV\n");
return NULL;
}
DPRINT("GreOpenDCW - ppdev = %p\n", ppdev);
pdc = DC_AllocDcWithHandle();
if (!pdc)
{
DPRINT1("Could not Allocate a DC\n");
PDEVOBJ_vRelease(ppdev);
return NULL;
}
hdc = pdc->BaseObject.hHmgr;
/* Lock ppdev and initialize the new DC */
DC_vInitDc(pdc, iType, ppdev);
/* FIXME: HACK! */
DC_InitHack(pdc);
DC_AllocDcAttr(pdc);
DC_UnlockDc(pdc);
DPRINT("returning hdc = %p\n", hdc);
return hdc;
}
HDC
APIENTRY
NtGdiOpenDCW(
PUNICODE_STRING pustrDevice,
DEVMODEW *pdmInit,
PUNICODE_STRING pustrLogAddr,
ULONG iType,
BOOL bDisplay,
HANDLE hspool,
VOID *pDriverInfo2,
VOID *pUMdhpdev)
{
UNICODE_STRING ustrDevice;
WCHAR awcDevice[CCHDEVICENAME];
DEVMODEW dmInit;
PVOID dhpdev;
HDC hdc;
/* Only if a devicename is given, we need any data */
if (pustrDevice)
{
/* Initialize destination string */
RtlInitEmptyUnicodeString(&ustrDevice, awcDevice, sizeof(awcDevice));
_SEH2_TRY
{
/* Probe the UNICODE_STRING and the buffer */
ProbeForRead(pustrDevice, sizeof(UNICODE_STRING), 1);
ProbeForRead(pustrDevice->Buffer, pustrDevice->Length, 1);
/* Copy the string */
RtlCopyUnicodeString(&ustrDevice, pustrDevice);
if (pdmInit)
{
/* FIXME: could be larger */
ProbeForRead(pdmInit, sizeof(DEVMODEW), 1);
RtlCopyMemory(&dmInit, pdmInit, sizeof(DEVMODEW));
}
if (pUMdhpdev)
{
ProbeForWrite(pUMdhpdev, sizeof(HANDLE), 1);
}
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
SetLastNtError(_SEH2_GetExceptionCode());
_SEH2_YIELD(return NULL);
}
_SEH2_END
}
else
{
pdmInit = NULL;
pUMdhpdev = NULL;
}
/* FIXME: HACK! */
if (pustrDevice)
{
UNICODE_STRING ustrDISPLAY = RTL_CONSTANT_STRING(L"DISPLAY");
if (RtlEqualUnicodeString(&ustrDevice, &ustrDISPLAY, TRUE))
{
pustrDevice = NULL;
}
}
/* Call the internal function */
hdc = GreOpenDCW(pustrDevice ? &ustrDevice : NULL,
pdmInit ? &dmInit : NULL,
NULL, // fixme pwszLogAddress
iType,
bDisplay,
hspool,
NULL, //FIXME: pDriverInfo2
pUMdhpdev ? &dhpdev : NULL);
/* If we got a HDC and a UM dhpdev is requested,... */
if (hdc && pUMdhpdev)
{
/* Copy dhpdev to caller (FIXME: use dhpdev?? */
_SEH2_TRY
{
/* Pointer was already probed */
*(HANDLE*)pUMdhpdev = dhpdev;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* Ignore error */
}
_SEH2_END
}
return hdc;
}
HDC
APIENTRY
NtGdiCreateCompatibleDC(HDC hdc)
{
HDC hdcNew;
PPDEVOBJ ppdev;
PDC pdc, pdcNew;
DPRINT("NtGdiCreateCompatibleDC(0x%p)\n", hdc);
/* Did the caller provide a DC? */
if (hdc)
{
/* Yes, try to lock it */
pdc = DC_LockDc(hdc);
if (!pdc)
{
DPRINT1("Could not lock source DC %p\n", hdc);
return NULL;
}
/* Get the pdev from the DC */
ppdev = pdc->ppdev;
InterlockedIncrement(&ppdev->cPdevRefs);
/* Unlock the source DC */
DC_UnlockDc(pdc);
}
else
{
/* No DC given, get default device */
ppdev = EngpGetPDEV(NULL);
}
if (!ppdev)
{
DPRINT1("Didn't find a suitable PDEV\n");
return NULL;
}
/* Allocate a new DC */
pdcNew = DC_AllocDcWithHandle();
if (!pdcNew)
{
DPRINT1("Could not allocate a new DC\n");
PDEVOBJ_vRelease(ppdev);
return NULL;
}
hdcNew = pdcNew->BaseObject.hHmgr;
/* Lock ppdev and initialize the new DC */
DC_vInitDc(pdcNew, DCTYPE_MEMORY, ppdev);
/* FIXME: HACK! */
DC_InitHack(pdcNew);
/* Allocate a dc attribute */
DC_AllocDcAttr(pdcNew);
// HACK!
DC_vSelectSurface(pdcNew, psurfDefaultBitmap);
DC_UnlockDc(pdcNew);
DPRINT("Leave NtGdiCreateCompatibleDC hdcNew = %p\n", hdcNew);
return hdcNew;
}
BOOL
FASTCALL
IntGdiDeleteDC(HDC hDC, BOOL Force)
{
PDC DCToDelete = DC_LockDc(hDC);
if (DCToDelete == NULL)
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
if (!Force)
{
/* Windows permits NtGdiDeleteObjectApp to delete a permanent DC
* For some reason, it's still a valid handle, pointing to some kernel data.
* Not sure if this is a bug, a feature, some cache stuff... Who knows?
* See NtGdiDeleteObjectApp test for details */
if (DCToDelete->fs & DC_FLAG_PERMANENT)
{
DC_UnlockDc(DCToDelete);
if(UserReleaseDC(NULL, hDC, FALSE))
{
/* ReactOs feature : call UserReleaseDC
* I don't think windows does it.
* Still, complain, no one should ever call DeleteDC
* on a window DC */
DPRINT1("No, you naughty application!\n");
return TRUE;
}
else
{
/* This is not a window owned DC.
* Force its deletion */
return IntGdiDeleteDC(hDC, TRUE);
}
}
}
DC_UnlockDc(DCToDelete);
if (!IsObjectDead(hDC))
{
if (!GDIOBJ_FreeObjByHandle(hDC, GDI_OBJECT_TYPE_DC))
{
DPRINT1("DC_FreeDC failed\n");
}
}
else
{
DPRINT1("Attempted to Delete 0x%x currently being destroyed!!!\n", hDC);
}
return TRUE;
}
BOOL
APIENTRY
NtGdiDeleteObjectApp(HANDLE DCHandle)
{
/* Complete all pending operations */
NtGdiFlushUserBatch();
if (GDI_HANDLE_IS_STOCKOBJ(DCHandle)) return TRUE;
if (GDI_HANDLE_GET_TYPE(DCHandle) != GDI_OBJECT_TYPE_DC)
return GreDeleteObject((HGDIOBJ) DCHandle);
if (IsObjectDead((HGDIOBJ)DCHandle)) return TRUE;
if (!GDIOBJ_OwnedByCurrentProcess(DCHandle))
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
return IntGdiDeleteDC(DCHandle, FALSE);
}
BOOL
FASTCALL
MakeInfoDC(PDC pdc, BOOL bSet)
{
PSURFACE pSurface;
SIZEL sizl;
/* Can not be a display DC. */
if (pdc->fs & DC_FLAG_DISPLAY) return FALSE;
if (bSet)
{
if (pdc->fs & DC_FLAG_TEMPINFODC || pdc->dctype == DC_TYPE_DIRECT)
return FALSE;
pSurface = pdc->dclevel.pSurface;
pdc->fs |= DC_FLAG_TEMPINFODC;
pdc->pSurfInfo = pSurface;
pdc->dctype = DC_TYPE_INFO;
pdc->dclevel.pSurface = NULL;
PDEVOBJ_sizl(pdc->ppdev, &sizl);
if ( sizl.cx == pdc->dclevel.sizl.cx &&
sizl.cy == pdc->dclevel.sizl.cy )
return TRUE;
pdc->dclevel.sizl.cx = sizl.cx;
pdc->dclevel.sizl.cy = sizl.cy;
}
else
{
if (!(pdc->fs & DC_FLAG_TEMPINFODC) || pdc->dctype != DC_TYPE_INFO)
return FALSE;
pSurface = pdc->pSurfInfo;
pdc->fs &= ~DC_FLAG_TEMPINFODC;
pdc->dclevel.pSurface = pSurface;
pdc->dctype = DC_TYPE_DIRECT;
pdc->pSurfInfo = NULL;
if ( !pSurface ||
(pSurface->SurfObj.sizlBitmap.cx == pdc->dclevel.sizl.cx &&
pSurface->SurfObj.sizlBitmap.cy == pdc->dclevel.sizl.cy) )
return TRUE;
pdc->dclevel.sizl.cx = pSurface->SurfObj.sizlBitmap.cx;
pdc->dclevel.sizl.cy = pSurface->SurfObj.sizlBitmap.cy;
}
return IntSetDefaultRegion(pdc);
}
/*
* @implemented
*/
BOOL
APIENTRY
NtGdiMakeInfoDC(
IN HDC hdc,
IN BOOL bSet)
{
BOOL Ret;
PDC pdc = DC_LockDc(hdc);
if (pdc)
{
Ret = MakeInfoDC(pdc, bSet);
DC_UnlockDc(pdc);
return Ret;
}
return FALSE;
}
HDC FASTCALL
IntGdiCreateDC(
PUNICODE_STRING Driver,
PUNICODE_STRING pustrDevice,
PVOID pUMdhpdev,
CONST PDEVMODEW pdmInit,
BOOL CreateAsIC)
{
HDC hdc;
hdc = GreOpenDCW(pustrDevice,
pdmInit,
NULL,
CreateAsIC ? DCTYPE_INFO :
(Driver ? DC_TYPE_DIRECT : DC_TYPE_DIRECT),
TRUE,
NULL,
NULL,
pUMdhpdev);
return hdc;
}
HDC FASTCALL
IntGdiCreateDisplayDC(HDEV hDev, ULONG DcType, BOOL EmptyDC)
{
HDC hDC;
UNIMPLEMENTED;
ASSERT(FALSE);
if (DcType == DC_TYPE_MEMORY)
hDC = NtGdiCreateCompatibleDC(NULL); // OH~ Yuck! I think I taste vomit in my mouth!
else
hDC = IntGdiCreateDC(NULL, NULL, NULL, NULL, (DcType == DC_TYPE_INFO));
return hDC;
}
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