reactos/win32ss/gdi/eng/pdevobj.c
David Quintana 057a69972f Sync with trunk r63174.
CORE-8176 #resolve #comment Trunk commit r63174 should fix this issue. I merged from trunk to bring it into Shell-experiments.

svn path=/branches/shell-experiments/; revision=63175
2014-05-06 15:51:24 +00:00

906 lines
23 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* PURPOSE: Support for physical devices
* FILE: subsystems/win32/win32k/eng/pdevobj.c
* PROGRAMER: Timo Kreuzer (timo.kreuzer@reactos.org)
*/
#include <win32k.h>
#define NDEBUG
#include <debug.h>
PPDEVOBJ gppdevPrimary = NULL;
static PPDEVOBJ gppdevList = NULL;
static HSEMAPHORE ghsemPDEV;
INIT_FUNCTION
NTSTATUS
NTAPI
InitPDEVImpl()
{
ghsemPDEV = EngCreateSemaphore();
if (!ghsemPDEV) return STATUS_INSUFFICIENT_RESOURCES;
return STATUS_SUCCESS;
}
#if DBG
PPDEVOBJ
NTAPI
DbgLookupDHPDEV(DHPDEV dhpdev)
{
PPDEVOBJ ppdev;
/* Lock PDEV list */
EngAcquireSemaphoreShared(ghsemPDEV);
/* Walk through the list of PDEVs */
for (ppdev = gppdevList; ppdev; ppdev = ppdev->ppdevNext)
{
/* Compare with the given DHPDEV */
if (ppdev->dhpdev == dhpdev) break;
}
/* Unlock PDEV list */
EngReleaseSemaphore(ghsemPDEV);
return ppdev;
}
#endif
PPDEVOBJ
PDEVOBJ_AllocPDEV()
{
PPDEVOBJ ppdev;
ppdev = ExAllocatePoolWithTag(PagedPool, sizeof(PDEVOBJ), GDITAG_PDEV);
if (!ppdev)
return NULL;
RtlZeroMemory(ppdev, sizeof(PDEVOBJ));
ppdev->cPdevRefs = 1;
return ppdev;
}
VOID
NTAPI
PDEVOBJ_vRelease(PPDEVOBJ ppdev)
{
/* Lock loader */
EngAcquireSemaphore(ghsemPDEV);
/* Decrease reference count */
--ppdev->cPdevRefs;
ASSERT(ppdev->cPdevRefs >= 0) ;
/* Check if references are left */
if (ppdev->cPdevRefs == 0)
{
/* Do we have a surface? */
if(ppdev->pSurface)
{
/* Release the surface and let the driver free it */
SURFACE_ShareUnlockSurface(ppdev->pSurface);
ppdev->pfn.DisableSurface(ppdev->dhpdev);
}
/* Do we have a palette? */
if(ppdev->ppalSurf)
{
PALETTE_ShareUnlockPalette(ppdev->ppalSurf);
}
/* Check if the PDEV was enabled */
if (ppdev->dhpdev != NULL)
{
/* Disable the PDEV */
ppdev->pfn.DisablePDEV(ppdev->dhpdev);
}
/* Remove it from list */
if( ppdev == gppdevList )
gppdevList = ppdev->ppdevNext ;
else
{
PPDEVOBJ ppdevCurrent = gppdevList;
BOOL found = FALSE ;
while (!found && ppdevCurrent->ppdevNext)
{
if (ppdevCurrent->ppdevNext == ppdev)
found = TRUE;
else
ppdevCurrent = ppdevCurrent->ppdevNext ;
}
if(found)
ppdevCurrent->ppdevNext = ppdev->ppdevNext;
}
/* Is this the primary one ? */
if (ppdev == gppdevPrimary)
gppdevPrimary = NULL;
/* Free it */
ExFreePoolWithTag(ppdev, GDITAG_PDEV );
}
/* Unlock loader */
EngReleaseSemaphore(ghsemPDEV);
}
BOOL
NTAPI
PDEVOBJ_bEnablePDEV(
PPDEVOBJ ppdev,
PDEVMODEW pdevmode,
PWSTR pwszLogAddress)
{
PFN_DrvEnablePDEV pfnEnablePDEV;
ULONG i;
DPRINT("PDEVOBJ_bEnablePDEV()\n");
/* Get the DrvEnablePDEV function */
pfnEnablePDEV = ppdev->pldev->pfn.EnablePDEV;
/* Call the drivers DrvEnablePDEV function */
ppdev->dhpdev = pfnEnablePDEV(pdevmode,
pwszLogAddress,
HS_DDI_MAX,
ppdev->ahsurf,
sizeof(GDIINFO),
(PULONG)&ppdev->gdiinfo,
sizeof(DEVINFO),
&ppdev->devinfo,
(HDEV)ppdev,
ppdev->pGraphicsDevice->pwszDescription,
ppdev->pGraphicsDevice->DeviceObject);
if (ppdev->dhpdev == NULL)
{
DPRINT1("Failed to enable PDEV\n");
return FALSE;
}
/* Fix up some values */
if (ppdev->gdiinfo.ulLogPixelsX == 0)
ppdev->gdiinfo.ulLogPixelsX = 96;
if (ppdev->gdiinfo.ulLogPixelsY == 0)
ppdev->gdiinfo.ulLogPixelsY = 96;
/* Set raster caps */
ppdev->gdiinfo.flRaster = RC_OP_DX_OUTPUT | RC_GDI20_OUTPUT | RC_BIGFONT;
if ((ppdev->gdiinfo.ulTechnology != DT_PLOTTER) && (ppdev->gdiinfo.ulTechnology != DT_CHARSTREAM))
ppdev->gdiinfo.flRaster |= RC_STRETCHDIB | RC_STRETCHBLT | RC_DIBTODEV | RC_DI_BITMAP | RC_BITMAP64 | RC_BITBLT;
if (ppdev->gdiinfo.ulTechnology == DT_RASDISPLAY)
ppdev->gdiinfo.flRaster |= RC_FLOODFILL;
if (ppdev->devinfo.flGraphicsCaps & GCAPS_PALMANAGED)
ppdev->gdiinfo.flRaster |= RC_PALETTE;
/* Setup Palette */
ppdev->ppalSurf = PALETTE_ShareLockPalette(ppdev->devinfo.hpalDefault);
/* Setup hatch brushes */
for (i = 0; i < HS_DDI_MAX; i++)
{
if (ppdev->ahsurf[i] == NULL)
ppdev->ahsurf[i] = gahsurfHatch[i];
}
DPRINT("PDEVOBJ_bEnablePDEV - dhpdev = %p\n", ppdev->dhpdev);
return TRUE;
}
VOID
NTAPI
PDEVOBJ_vCompletePDEV(
PPDEVOBJ ppdev)
{
/* Call the drivers DrvCompletePDEV function */
ppdev->pldev->pfn.CompletePDEV(ppdev->dhpdev, (HDEV)ppdev);
}
PSURFACE
NTAPI
PDEVOBJ_pSurface(
PPDEVOBJ ppdev)
{
HSURF hsurf;
/* Check if we already have a surface */
if (ppdev->pSurface)
{
/* Increment reference count */
GDIOBJ_vReferenceObjectByPointer(&ppdev->pSurface->BaseObject);
}
else
{
/* Call the drivers DrvEnableSurface */
hsurf = ppdev->pldev->pfn.EnableSurface(ppdev->dhpdev);
/* Lock the surface */
ppdev->pSurface = SURFACE_ShareLockSurface(hsurf);
}
DPRINT("PDEVOBJ_pSurface() returning %p\n", ppdev->pSurface);
return ppdev->pSurface;
}
PDEVMODEW
NTAPI
PDEVOBJ_pdmMatchDevMode(
PPDEVOBJ ppdev,
PDEVMODEW pdm)
{
PGRAPHICS_DEVICE pGraphicsDevice;
PDEVMODEW pdmCurrent;
ULONG i;
DWORD dwFields;
pGraphicsDevice = ppdev->pGraphicsDevice;
for (i = 0; i < pGraphicsDevice->cDevModes; i++)
{
pdmCurrent = pGraphicsDevice->pDevModeList[i].pdm;
/* Compare asked DEVMODE fields
* Only compare those that are valid in both DEVMODE structs */
dwFields = pdmCurrent->dmFields & pdm->dmFields ;
/* For now, we only need those */
if ((dwFields & DM_BITSPERPEL) &&
(pdmCurrent->dmBitsPerPel != pdm->dmBitsPerPel)) continue;
if ((dwFields & DM_PELSWIDTH) &&
(pdmCurrent->dmPelsWidth != pdm->dmPelsWidth)) continue;
if ((dwFields & DM_PELSHEIGHT) &&
(pdmCurrent->dmPelsHeight != pdm->dmPelsHeight)) continue;
if ((dwFields & DM_DISPLAYFREQUENCY) &&
(pdmCurrent->dmDisplayFrequency != pdm->dmDisplayFrequency)) continue;
/* Match! Return the DEVMODE */
return pdmCurrent;
}
/* Nothing found */
return NULL;
}
static
PPDEVOBJ
EngpCreatePDEV(
PUNICODE_STRING pustrDeviceName,
PDEVMODEW pdm)
{
PGRAPHICS_DEVICE pGraphicsDevice;
PPDEVOBJ ppdev;
DPRINT("EngpCreatePDEV(%wZ, %p)\n", pustrDeviceName, pdm);
/* Try to find the GRAPHICS_DEVICE */
if (pustrDeviceName)
{
pGraphicsDevice = EngpFindGraphicsDevice(pustrDeviceName, 0, 0);
if (!pGraphicsDevice)
{
DPRINT1("No GRAPHICS_DEVICE found for %ls!\n",
pustrDeviceName ? pustrDeviceName->Buffer : 0);
return NULL;
}
}
else
{
pGraphicsDevice = gpPrimaryGraphicsDevice;
}
/* Allocate a new PDEVOBJ */
ppdev = PDEVOBJ_AllocPDEV();
if (!ppdev)
{
DPRINT1("failed to allocate a PDEV\n");
return NULL;
}
/* If no DEVMODEW is given, ... */
if (!pdm)
{
/* ... use the device's default one */
pdm = pGraphicsDevice->pDevModeList[pGraphicsDevice->iDefaultMode].pdm;
DPRINT("Using iDefaultMode = %lu\n", pGraphicsDevice->iDefaultMode);
}
/* Try to get a diplay driver */
ppdev->pldev = EngLoadImageEx(pdm->dmDeviceName, LDEV_DEVICE_DISPLAY);
if (!ppdev->pldev)
{
DPRINT1("Could not load display driver '%ls', '%ls'\n",
pGraphicsDevice->pDiplayDrivers,
pdm->dmDeviceName);
ExFreePoolWithTag(ppdev, GDITAG_PDEV);
return NULL;
}
/* Copy the function table */
ppdev->pfn = ppdev->pldev->pfn;
/* Set MovePointer function */
ppdev->pfnMovePointer = ppdev->pfn.MovePointer;
if (!ppdev->pfnMovePointer)
ppdev->pfnMovePointer = EngMovePointer;
ppdev->pGraphicsDevice = pGraphicsDevice;
ppdev->hsemDevLock = EngCreateSemaphore();
// Should we change the ative mode of pGraphicsDevice ?
ppdev->pdmwDev = PDEVOBJ_pdmMatchDevMode(ppdev, pdm) ;
/* FIXME! */
ppdev->flFlags = PDEV_DISPLAY;
/* HACK: Don't use the pointer */
ppdev->Pointer.Exclude.right = -1;
/* Call the driver to enable the PDEV */
if (!PDEVOBJ_bEnablePDEV(ppdev, pdm, NULL))
{
DPRINT1("Failed to enable PDEV!\n");
PDEVOBJ_vRelease(ppdev);
return NULL;
}
/* FIXME: this must be done in a better way */
pGraphicsDevice->StateFlags |= DISPLAY_DEVICE_ATTACHED_TO_DESKTOP;
/* Tell the driver that the PDEV is ready */
PDEVOBJ_vCompletePDEV(ppdev);
/* Return the PDEV */
return ppdev;
}
FORCEINLINE
VOID
SwitchPointer(
_Inout_ PVOID pvPointer1,
_Inout_ PVOID pvPointer2)
{
PVOID *ppvPointer1 = pvPointer1;
PVOID *ppvPointer2 = pvPointer2;
PVOID pvTemp;
pvTemp = *ppvPointer1;
*ppvPointer1 = *ppvPointer2;
*ppvPointer2 = pvTemp;
}
VOID
NTAPI
PDEVOBJ_vSwitchPdev(
PPDEVOBJ ppdev,
PPDEVOBJ ppdev2)
{
union
{
DRIVER_FUNCTIONS pfn;
GDIINFO gdiinfo;
DEVINFO devinfo;
DWORD StateFlags;
} temp;
/* Exchange driver functions */
temp.pfn = ppdev->pfn;
ppdev->pfn = ppdev2->pfn;
ppdev2->pfn = temp.pfn;
/* Exchange LDEVs */
SwitchPointer(&ppdev->pldev, &ppdev2->pldev);
/* Exchange DHPDEV */
SwitchPointer(&ppdev->dhpdev, &ppdev2->dhpdev);
/* Exchange surfaces and associate them with their new PDEV */
SwitchPointer(&ppdev->pSurface, &ppdev2->pSurface);
ppdev->pSurface->SurfObj.hdev = (HDEV)ppdev;
ppdev2->pSurface->SurfObj.hdev = (HDEV)ppdev2;
/* Exchange devinfo */
temp.devinfo = ppdev->devinfo;
ppdev->devinfo = ppdev2->devinfo;
ppdev2->devinfo = temp.devinfo;
/* Exchange gdiinfo */
temp.gdiinfo = ppdev->gdiinfo;
ppdev->gdiinfo = ppdev2->gdiinfo;
ppdev2->gdiinfo = temp.gdiinfo;
/* Exchange DEVMODE */
SwitchPointer(&ppdev->pdmwDev, &ppdev2->pdmwDev);
/* Exchange state flags */
temp.StateFlags = ppdev->pGraphicsDevice->StateFlags;
ppdev->pGraphicsDevice->StateFlags = ppdev2->pGraphicsDevice->StateFlags;
ppdev2->pGraphicsDevice->StateFlags = temp.StateFlags;
/* Notify each driver instance of its new HDEV association */
ppdev->pfn.CompletePDEV(ppdev->dhpdev, (HDEV)ppdev);
ppdev2->pfn.CompletePDEV(ppdev2->dhpdev, (HDEV)ppdev2);
}
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;
}
PPDEVOBJ
NTAPI
EngpGetPDEV(
_In_opt_ PUNICODE_STRING pustrDeviceName)
{
UNICODE_STRING ustrCurrent;
PPDEVOBJ ppdev;
PGRAPHICS_DEVICE pGraphicsDevice;
/* Acquire PDEV lock */
EngAcquireSemaphore(ghsemPDEV);
/* Did the caller pass a device name? */
if (pustrDeviceName)
{
/* Loop all present PDEVs */
for (ppdev = gppdevList; ppdev; ppdev = ppdev->ppdevNext)
{
/* Get a pointer to the GRAPHICS_DEVICE */
pGraphicsDevice = ppdev->pGraphicsDevice;
/* Compare the name */
RtlInitUnicodeString(&ustrCurrent, pGraphicsDevice->szWinDeviceName);
if (RtlEqualUnicodeString(pustrDeviceName, &ustrCurrent, FALSE))
{
/* Found! */
break;
}
}
}
else
{
/* Otherwise use the primary PDEV */
ppdev = gppdevPrimary;
}
/* Did we find one? */
if (ppdev)
{
/* Yes, reference the PDEV */
InterlockedIncrement(&ppdev->cPdevRefs);
}
else
{
/* No, create a new PDEV for the given device */
ppdev = EngpCreatePDEV(pustrDeviceName, NULL);
if (ppdev)
{
/* Insert the PDEV into the list */
ppdev->ppdevNext = gppdevList;
gppdevList = ppdev;
/* Set as primary PDEV, if we don't have one yet */
if (!gppdevPrimary)
{
gppdevPrimary = ppdev;
ppdev->pGraphicsDevice->StateFlags |= DISPLAY_DEVICE_PRIMARY_DEVICE;
}
}
}
/* Release PDEV lock */
EngReleaseSemaphore(ghsemPDEV);
return ppdev;
}
INT
NTAPI
PDEVOBJ_iGetColorManagementCaps(PPDEVOBJ ppdev)
{
INT ret = CM_NONE;
if (ppdev->flFlags & PDEV_DISPLAY)
{
if (ppdev->devinfo.iDitherFormat == BMF_8BPP ||
ppdev->devinfo.flGraphicsCaps2 & GCAPS2_CHANGEGAMMARAMP)
ret = CM_GAMMA_RAMP;
}
if (ppdev->devinfo.flGraphicsCaps & GCAPS_CMYKCOLOR)
ret |= CM_CMYK_COLOR;
if (ppdev->devinfo.flGraphicsCaps & GCAPS_ICM)
ret |= CM_DEVICE_ICM;
return ret;
}
VOID
NTAPI
PDEVOBJ_vGetDeviceCaps(
IN PPDEVOBJ ppdev,
OUT PDEVCAPS pDevCaps)
{
PGDIINFO pGdiInfo = &ppdev->gdiinfo;
pDevCaps->ulVersion = pGdiInfo->ulVersion;
pDevCaps->ulTechnology = pGdiInfo->ulTechnology;
pDevCaps->ulHorzSizeM = (pGdiInfo->ulHorzSize + 500) / 1000;
pDevCaps->ulVertSizeM = (pGdiInfo->ulVertSize + 500) / 1000;
pDevCaps->ulHorzSize = pGdiInfo->ulHorzSize;
pDevCaps->ulVertSize = pGdiInfo->ulVertSize;
pDevCaps->ulHorzRes = pGdiInfo->ulHorzRes;
pDevCaps->ulVertRes = pGdiInfo->ulVertRes;
pDevCaps->ulBitsPixel = pGdiInfo->cBitsPixel;
if (pDevCaps->ulBitsPixel == 15) pDevCaps->ulBitsPixel = 16;
pDevCaps->ulPlanes = pGdiInfo->cPlanes;
pDevCaps->ulNumPens = pGdiInfo->ulNumColors;
if (pDevCaps->ulNumPens != -1) pDevCaps->ulNumPens *= 5;
pDevCaps->ulNumFonts = 0; // PDEVOBJ_cFonts(ppdev);
pDevCaps->ulNumColors = pGdiInfo->ulNumColors;
pDevCaps->ulRasterCaps = pGdiInfo->flRaster;
pDevCaps->ulAspectX = pGdiInfo->ulAspectX;
pDevCaps->ulAspectY = pGdiInfo->ulAspectY;
pDevCaps->ulAspectXY = pGdiInfo->ulAspectXY;
pDevCaps->ulLogPixelsX = pGdiInfo->ulLogPixelsX;
pDevCaps->ulLogPixelsY = pGdiInfo->ulLogPixelsY;
pDevCaps->ulSizePalette = pGdiInfo->ulNumPalReg;
pDevCaps->ulColorRes = pGdiInfo->ulDACRed +
pGdiInfo->ulDACGreen +
pGdiInfo->ulDACBlue;
pDevCaps->ulPhysicalWidth = pGdiInfo->szlPhysSize.cx;
pDevCaps->ulPhysicalHeight = pGdiInfo->szlPhysSize.cy;
pDevCaps->ulPhysicalOffsetX = pGdiInfo->ptlPhysOffset.x;
pDevCaps->ulPhysicalOffsetY = pGdiInfo->ptlPhysOffset.y;
pDevCaps->ulTextCaps = pGdiInfo->flTextCaps;
pDevCaps->ulTextCaps |= (TC_SO_ABLE|TC_UA_ABLE|TC_CP_STROKE|TC_OP_STROKE|TC_OP_CHARACTER);
if (pGdiInfo->ulTechnology != DT_PLOTTER)
pDevCaps->ulTextCaps |= TC_VA_ABLE;
pDevCaps->ulVRefresh = pGdiInfo->ulVRefresh;
pDevCaps->ulDesktopHorzRes = pGdiInfo->ulHorzRes;
pDevCaps->ulDesktopVertRes = pGdiInfo->ulVertRes;
pDevCaps->ulBltAlignment = pGdiInfo->ulBltAlignment;
pDevCaps->ulPanningHorzRes = pGdiInfo->ulPanningHorzRes;
pDevCaps->ulPanningVertRes = pGdiInfo->ulPanningVertRes;
pDevCaps->xPanningAlignment = pGdiInfo->xPanningAlignment;
pDevCaps->yPanningAlignment = pGdiInfo->yPanningAlignment;
pDevCaps->ulShadeBlend = pGdiInfo->flShadeBlend;
pDevCaps->ulColorMgmtCaps = PDEVOBJ_iGetColorManagementCaps(ppdev);
}
/** Exported functions ********************************************************/
_Must_inspect_result_ _Ret_z_
LPWSTR
APIENTRY
EngGetDriverName(_In_ HDEV hdev)
{
PPDEVOBJ ppdev = (PPDEVOBJ)hdev;
ASSERT(ppdev);
ASSERT(ppdev->pldev);
ASSERT(ppdev->pldev->pGdiDriverInfo);
ASSERT(ppdev->pldev->pGdiDriverInfo->DriverName.Buffer);
return ppdev->pldev->pGdiDriverInfo->DriverName.Buffer;
}
INT
APIENTRY
NtGdiGetDeviceCaps(
HDC hdc,
INT Index)
{
PDC pdc;
DEVCAPS devcaps;
/* Lock the given DC */
pdc = DC_LockDc(hdc);
if (!pdc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return 0;
}
/* Get the data */
PDEVOBJ_vGetDeviceCaps(pdc->ppdev, &devcaps);
/* Unlock the DC */
DC_UnlockDc(pdc);
/* Return capability */
switch (Index)
{
case DRIVERVERSION:
return devcaps.ulVersion;
case TECHNOLOGY:
return devcaps.ulTechnology;
case HORZSIZE:
return devcaps.ulHorzSize;
case VERTSIZE:
return devcaps.ulVertSize;
case HORZRES:
return devcaps.ulHorzRes;
case VERTRES:
return devcaps.ulVertRes;
case LOGPIXELSX:
return devcaps.ulLogPixelsX;
case LOGPIXELSY:
return devcaps.ulLogPixelsY;
case BITSPIXEL:
return devcaps.ulBitsPixel;
case PLANES:
return devcaps.ulPlanes;
case NUMBRUSHES:
return -1;
case NUMPENS:
return devcaps.ulNumPens;
case NUMFONTS:
return devcaps.ulNumFonts;
case NUMCOLORS:
return devcaps.ulNumColors;
case ASPECTX:
return devcaps.ulAspectX;
case ASPECTY:
return devcaps.ulAspectY;
case ASPECTXY:
return devcaps.ulAspectXY;
case CLIPCAPS:
return CP_RECTANGLE;
case SIZEPALETTE:
return devcaps.ulSizePalette;
case NUMRESERVED:
return 20;
case COLORRES:
return devcaps.ulColorRes;
case DESKTOPVERTRES:
return devcaps.ulVertRes;
case DESKTOPHORZRES:
return devcaps.ulHorzRes;
case BLTALIGNMENT:
return devcaps.ulBltAlignment;
case SHADEBLENDCAPS:
return devcaps.ulShadeBlend;
case COLORMGMTCAPS:
return devcaps.ulColorMgmtCaps;
case PHYSICALWIDTH:
return devcaps.ulPhysicalWidth;
case PHYSICALHEIGHT:
return devcaps.ulPhysicalHeight;
case PHYSICALOFFSETX:
return devcaps.ulPhysicalOffsetX;
case PHYSICALOFFSETY:
return devcaps.ulPhysicalOffsetY;
case VREFRESH:
return devcaps.ulVRefresh;
case RASTERCAPS:
return devcaps.ulRasterCaps;
case CURVECAPS:
return (CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES | CC_WIDE |
CC_STYLED | CC_WIDESTYLED | CC_INTERIORS | CC_ROUNDRECT);
case LINECAPS:
return (LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
LC_STYLED | LC_WIDESTYLED | LC_INTERIORS);
case POLYGONALCAPS:
return (PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON | PC_SCANLINE |
PC_WIDE | PC_STYLED | PC_WIDESTYLED | PC_INTERIORS);
case TEXTCAPS:
return devcaps.ulTextCaps;
case CAPS1:
case PDEVICESIZE:
case SCALINGFACTORX:
case SCALINGFACTORY:
default:
return 0;
}
return 0;
}
_Success_(return!=FALSE)
BOOL
APIENTRY
NtGdiGetDeviceCapsAll(
IN HDC hDC,
OUT PDEVCAPS pDevCaps)
{
PDC pdc;
DEVCAPS devcaps;
BOOL bResult = TRUE;
/* Lock the given DC */
pdc = DC_LockDc(hDC);
if (!pdc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
/* Get the data */
PDEVOBJ_vGetDeviceCaps(pdc->ppdev, &devcaps);
/* Unlock the DC */
DC_UnlockDc(pdc);
/* Copy data to caller */
_SEH2_TRY
{
ProbeForWrite(pDevCaps, sizeof(DEVCAPS), 1);
RtlCopyMemory(pDevCaps, &devcaps, sizeof(DEVCAPS));
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
SetLastNtError(_SEH2_GetExceptionCode());
bResult = FALSE;
}
_SEH2_END;
return bResult;
}
DHPDEV
APIENTRY
NtGdiGetDhpdev(
IN HDEV hdev)
{
PPDEVOBJ ppdev;
DHPDEV dhpdev = NULL;
/* Check parameter */
if (!hdev || (PCHAR)hdev < (PCHAR)MmSystemRangeStart)
return NULL;
/* Lock PDEV list */
EngAcquireSemaphoreShared(ghsemPDEV);
/* Walk through the list of PDEVs */
for (ppdev = gppdevList; ppdev; ppdev = ppdev->ppdevNext)
{
/* Compare with the given HDEV */
if (ppdev == (PPDEVOBJ)hdev)
{
/* Found the PDEV! Get it's dhpdev and break */
dhpdev = ppdev->dhpdev;
break;
}
}
/* Unlock PDEV list */
EngReleaseSemaphore(ghsemPDEV);
return dhpdev;
}
PSIZEL
FASTCALL
PDEVOBJ_sizl(PPDEVOBJ ppdev, PSIZEL psizl)
{
if (ppdev->flFlags & PDEV_META_DEVICE)
{
psizl->cx = ppdev->ulHorzRes;
psizl->cy = ppdev->ulVertRes;
}
else
{
psizl->cx = ppdev->gdiinfo.ulHorzRes;
psizl->cy = ppdev->gdiinfo.ulVertRes;
}
return psizl;
}