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implement DxEngLockShareSem

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implement DxEngUnlockShareSem

svn path=/trunk/; revision=31554
This commit is contained in:
Magnus Olsen 2008-01-02 08:47:46 +00:00
parent e71f4394b7
commit 57cfafda1d
2 changed files with 59 additions and 21 deletions
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10
reactos/include/reactos/drivers/directx/dxeng.h
View file

@ -78,13 +78,15 @@ BOOL DxEngUnlockDC(PDC pDC);
/* Notes : Set Gamma ramp */
BOOL DxEngSetDeviceGammaRamp(HDEV hPDev, PGAMMARAMP Ramp, BOOL Unuse);
/* prototypes are not done yet, I need gather all my notes
* to make them correct
BOOLEAN DxEngLockShareSem();
BOOLEAN DxEngUnlockShareSem();
/* prototypes are not done yet, I need gather all my notes
* to make them correct
*/
DWORD DxEngCreateMemoryDC(DWORD x1);
DWORD DxEngScreenAccessCheck();
DWORD DxEngLockShareSem();
DWORD DxEngUnlockShareSem();
DWORD DxEngLockHdev(DWORD x1);
DWORD DxEngUnlockHdev(DWORD x1);
DWORD DxEngReferenceHdev(DWORD x1);

70
reactos/subsystems/win32/win32k/ntddraw/dxeng.c
View file

@ -10,6 +10,7 @@
#include <w32k.h>
#include <debug.h>
ERESOURCE ghsemShareDevLock;
@ -214,22 +215,57 @@ DWORD DxEngScreenAccessCheck()
return FALSE;
}
/************************************************************************/
/* DxEngLockShareSem */
/************************************************************************/
DWORD DxEngLockShareSem()
/*++
* @name DxEngLockShareSem
* @implemented
*
* The function DxEngLockShareSem doing share lock of ghsemShareDevLock
*
* @return
* This function returns TRUE for susssess, or FALSE for fail, FALSE can only
* mean it being already lock.
*
* @remarks.
* it being use in diffent ntuser* functions and ntgdi*
* ReactOS specify it is not been inuse at moment
*SystemResourcesList
*--*/
BOOLEAN
DxEngLockShareSem()
{
UNIMPLEMENTED;
return FALSE;
BOOLEAN retVal = 0;
if (ExIsResourceAcquiredExclusiveLite(&ghsemShareDevLock) == FALSE)
{
KeEnterCriticalRegion();
retVal = ExAcquireResourceExclusiveLite(&ghsemShareDevLock, TRUE);
}
return retVal;
}
/************************************************************************/
/* DxEngUnlockShareSem */
/************************************************************************/
DWORD DxEngUnlockShareSem()
/*++
* @name DxEngUnlockShareSem
* @implemented
*
* The function DxEngUnlockShareSem doing share unlock of ghsemShareDevLock
*
* @return
* This function returns TRUE no matter what
*
* @remarks.
* ReactOS specify it is not been inuse at moment
*
*--*/
BOOLEAN
DxEngUnlockShareSem()
{
UNIMPLEMENTED;
return FALSE;
if (ExIsResourceAcquiredExclusiveLite(&ghsemShareDevLock) == TRUE)
{
ExReleaseResourceLite(&ghsemShareDevLock);
KeLeaveCriticalRegion();
}
return TRUE;
}
/************************************************************************/
@ -415,9 +451,9 @@ DWORD DxEngSetDCState(DWORD x1, DWORD x2, DWORD x3)
* The DC handle
*
* @param DWORD type
* value 1 = Is DC fullscreen
* value 2 = Get Complexity of visible region.
* value 3 = Get Driver hdev, which is a pPDev.
* value 1 = Is DC fullscreen
* value 2 = Get Complexity of visible region.
* value 3 = Get Driver hdev, which is a pPDev.
*
* @return
* Return one of the type values
@ -445,13 +481,13 @@ DxEngGetDCState(HDC hDC,
break;
case 3:
{
/* Return the HDEV of this DC. */
/* Return the HDEV of this DC. */
retVal = (DWORD) pDC->pPDev;
break;
}
default:
/* if a valid type is not found, zero is returned */
DPRINT1("Warning did not find type %d\n",type);
DPRINT1("Warning did not find type %d\n",type);
break;
}
DC_UnlockDc(pDC);