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=%lu)\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_bAllocDcAttr(pdc);
DC_UnlockDc(pdc);
DPRINT("Returning hdc = %p\n", hdc);
return hdc;
}
BOOL
NTAPI
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);
/* Release font */
LFONT_ShareUnlockFont(pdc->dclevel.plfnt);
/* Free regions */
if (pdc->rosdc.hClipRgn && GreIsHandleValid(pdc->rosdc.hClipRgn))
GreDeleteObject(pdc->rosdc.hClipRgn);
if (pdc->prgnVis)
{
REGION_Delete(pdc->prgnVis);
}
if (pdc->rosdc.hGCClipRgn && GreIsHandleValid(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;
}
VOID
NTAPI
DC_vCleanup(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);
/* Release font */
LFONT_ShareUnlockFont(pdc->dclevel.plfnt);
/* Free regions */
if (pdc->dclevel.prgnClip)
REGION_Delete(pdc->dclevel.prgnClip);
if (pdc->dclevel.prgnMeta)
REGION_Delete(pdc->dclevel.prgnMeta);
if (pdc->prgnVis)
REGION_Delete(pdc->prgnVis);
if (pdc->prgnRao)
REGION_Delete(pdc->prgnRao);
if (pdc->prgnAPI)
REGION_Delete(pdc->prgnAPI);
/* Free CLIPOBJ resources */
IntEngFreeClipResources(&pdc->co);
PATH_Delete(pdc->dclevel.hPath);
if(pdc->dclevel.pSurface)
SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
PDEVOBJ_vRelease(pdc->ppdev) ;
}
NTSTATUS
NTAPI
UserEnumCurrentDisplaySettings(
PUNICODE_STRING pustrDevice,
PDEVMODEW *ppdm)
{
PPDEVOBJ ppdev;
/* Get the PDEV for the device */
ppdev = EngpGetPDEV(pustrDevice);
if (!ppdev)
{
/* No device found */
ERR("No PDEV found!\n");
return STATUS_UNSUCCESSFUL;
}
*ppdm = ppdev->pdmwDev;
PDEVOBJ_vRelease(ppdev);
return STATUS_SUCCESS;
}
LONG
APIENTRY
UserChangeDisplaySettings(
PUNICODE_STRING pustrDevice,
LPDEVMODEW pdm,
HWND hwnd,
DWORD flags,
LPVOID lParam)
{
DEVMODEW dm;
LONG lResult = DISP_CHANGE_SUCCESSFUL;
HKEY hkey;
NTSTATUS Status;
PPDEVOBJ ppdev;
//PDESKTOP pdesk;
/* If no DEVMODE is given, use registry settings */
if (!pdm)
{
/* Get the registry settings */
Status = UserEnumRegistryDisplaySettings(pustrDevice, &dm);
if (!NT_SUCCESS(Status))
{
ERR("Could not load registry settings\n");
return DISP_CHANGE_BADPARAM;
}
}
else if (pdm->dmSize < FIELD_OFFSET(DEVMODEW, dmFields))
return DISP_CHANGE_BADMODE; /* This is what winXP SP3 returns */
else
dm = *pdm;
/* Check params */
if ((dm.dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
{
ERR("Devmode doesn't specify the resolution.\n");
return DISP_CHANGE_BADMODE;
}
/* Get the PDEV */
ppdev = EngpGetPDEV(pustrDevice);
if (!ppdev)
{
ERR("Failed to get PDEV\n");
return DISP_CHANGE_BADPARAM;
}
/* Fixup values */
if(dm.dmBitsPerPel == 0 || !(dm.dmFields & DM_BITSPERPEL))
{
dm.dmBitsPerPel = ppdev->pdmwDev->dmBitsPerPel;
dm.dmFields |= DM_BITSPERPEL;
}
if((dm.dmFields & DM_DISPLAYFREQUENCY) && (dm.dmDisplayFrequency == 0))
dm.dmDisplayFrequency = ppdev->pdmwDev->dmDisplayFrequency;
/* Look for the requested DEVMODE */
pdm = PDEVOBJ_pdmMatchDevMode(ppdev, &dm);
if (!pdm)
{
ERR("Could not find a matching DEVMODE\n");
lResult = DISP_CHANGE_BADMODE;
goto leave;
}
else if (flags & CDS_TEST)
{
/* It's possible, go ahead! */
lResult = DISP_CHANGE_SUCCESSFUL;
goto leave;
}
/* Shall we update the registry? */
if (flags & CDS_UPDATEREGISTRY)
{
/* Open the local or global settings key */
Status = UserOpenDisplaySettingsKey(&hkey, pustrDevice, flags & CDS_GLOBAL);
if (NT_SUCCESS(Status))
{
/* Store the settings */
RegWriteDisplaySettings(hkey, pdm);
/* Close the registry key */
ZwClose(hkey);
}
else
{
ERR("Could not open registry key\n");
lResult = DISP_CHANGE_NOTUPDATED;
}
}
/* Check if DEVMODE matches the current mode */
if (pdm == ppdev->pdmwDev && !(flags & CDS_RESET))
{
ERR("DEVMODE matches, nothing to do\n");
goto leave;
}
/* Shall we apply the settings? */
if (!(flags & CDS_NORESET))
{
ULONG ulResult;
PVOID pvOldCursor;
/* Remove mouse pointer */
pvOldCursor = UserSetCursor(NULL, TRUE);
/* Do the mode switch */
ulResult = PDEVOBJ_bSwitchMode(ppdev, pdm);
/* Restore mouse pointer, no hooks called */
UserSetCursor(pvOldCursor, TRUE);
/* Check for failure */
if (!ulResult)
{
ERR("Failed to set mode\n");
lResult = (lResult == DISP_CHANGE_NOTUPDATED) ?
DISP_CHANGE_FAILED : DISP_CHANGE_RESTART;
goto leave;
}
/* Update the system metrics */
InitMetrics();
//IntvGetDeviceCaps(&PrimarySurface, &GdiHandleTable->DevCaps);
/* Set new size of the monitor */
UserUpdateMonitorSize((HDEV)ppdev);
/* Remove all cursor clipping */
UserClipCursor(NULL);
//pdesk = IntGetActiveDesktop();
//IntHideDesktop(pdesk);
/* Send WM_DISPLAYCHANGE to all toplevel windows */
co_IntSendMessageTimeout(HWND_BROADCAST,
WM_DISPLAYCHANGE,
(WPARAM)ppdev->gdiinfo.cBitsPixel,
(LPARAM)(ppdev->gdiinfo.ulHorzRes + (ppdev->gdiinfo.ulVertRes << 16)),
SMTO_NORMAL,
100,
&ulResult);
//co_IntShowDesktop(pdesk, ppdev->gdiinfo.ulHorzRes, ppdev->gdiinfo.ulVertRes);
UserRedrawDesktop();
}
leave:
/* Release the PDEV */
PDEVOBJ_vRelease(ppdev);
return lResult;
}
BOOL
NTAPI
PDEVOBJ_bSwitchMode(
PPDEVOBJ ppdev,
PDEVMODEW pdm)
{
UNICODE_STRING ustrDevice;
PPDEVOBJ ppdevTmp;
PSURFACE pSurface;
BOOL retval = FALSE;
/* Lock the PDEV */
EngAcquireSemaphore(ppdev->hsemDevLock);
/* And everything else */
EngAcquireSemaphore(ghsemPDEV);
DPRINT1("PDEVOBJ_bSwitchMode, ppdev = %p, pSurface = %p\n", ppdev, ppdev->pSurface);
// Lookup the GraphicsDevice + select DEVMODE
// pdm = PDEVOBJ_pdmMatchDevMode(ppdev, pdm);
/* 1. Temporarily disable the current PDEV */
if (!ppdev->pfn.AssertMode(ppdev->dhpdev, FALSE))
{
DPRINT1("DrvAssertMode failed\n");
goto leave;
}
/* 2. Create new PDEV */
RtlInitUnicodeString(&ustrDevice, ppdev->pGraphicsDevice->szWinDeviceName);
ppdevTmp = EngpCreatePDEV(&ustrDevice, pdm);
if (!ppdevTmp)
{
DPRINT1("Failed to create a new PDEV\n");
goto leave;
}
/* 3. Create a new surface */
pSurface = PDEVOBJ_pSurface(ppdevTmp);
if (!pSurface)
{
DPRINT1("DrvEnableSurface failed\n");
goto leave;
}
/* 4. Get DirectDraw information */
/* 5. Enable DirectDraw Not traced */
/* 6. Copy old PDEV state to new PDEV instance */
/* 7. Switch the PDEVs */
PDEVOBJ_vSwitchPdev(ppdev, ppdevTmp);
/* 8. Disable DirectDraw */
PDEVOBJ_vRelease(ppdevTmp);
/* Update primary display capabilities */
if(ppdev == gppdevPrimary)
{
PDEVOBJ_vGetDeviceCaps(ppdev, &GdiHandleTable->DevCaps);
}
/* Success! */
retval = TRUE;
leave:
/* Unlock PDEV */
EngReleaseSemaphore(ppdev->hsemDevLock);
EngReleaseSemaphore(ghsemPDEV);
DPRINT1("leave, ppdev = %p, pSurface = %p\n", ppdev, ppdev->pSurface);
return retval;
}
