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

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

@ -10,6 +10,7 @@
#include <w32k.h> #include <w32k.h>
#include <debug.h> #include <debug.h>
ERESOURCE ghsemShareDevLock;
@ -214,22 +215,57 @@ DWORD DxEngScreenAccessCheck()
return FALSE; return FALSE;
} }
/************************************************************************/ /*++
/* DxEngLockShareSem */ * @name DxEngLockShareSem
/************************************************************************/ * @implemented
DWORD DxEngLockShareSem() *
* 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; BOOLEAN retVal = 0;
return FALSE;
if (ExIsResourceAcquiredExclusiveLite(&ghsemShareDevLock) == FALSE)
{
KeEnterCriticalRegion();
retVal = ExAcquireResourceExclusiveLite(&ghsemShareDevLock, TRUE);
}
return retVal;
} }
/************************************************************************/ /*++
/* DxEngUnlockShareSem */ * @name DxEngUnlockShareSem
/************************************************************************/ * @implemented
DWORD DxEngUnlockShareSem() *
* 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; if (ExIsResourceAcquiredExclusiveLite(&ghsemShareDevLock) == TRUE)
return FALSE; {
ExReleaseResourceLite(&ghsemShareDevLock);
KeLeaveCriticalRegion();
}
return TRUE;
} }
/************************************************************************/ /************************************************************************/
@ -415,9 +451,9 @@ DWORD DxEngSetDCState(DWORD x1, DWORD x2, DWORD x3)
* The DC handle * The DC handle
* *
* @param DWORD type * @param DWORD type
* value 1 = Is DC fullscreen * value 1 = Is DC fullscreen
* value 2 = Get Complexity of visible region. * value 2 = Get Complexity of visible region.
* value 3 = Get Driver hdev, which is a pPDev. * value 3 = Get Driver hdev, which is a pPDev.
* *
* @return * @return
* Return one of the type values * Return one of the type values
@ -445,13 +481,13 @@ DxEngGetDCState(HDC hDC,
break; break;
case 3: case 3:
{ {
/* Return the HDEV of this DC. */ /* Return the HDEV of this DC. */
retVal = (DWORD) pDC->pPDev; retVal = (DWORD) pDC->pPDev;
break; break;
} }
default: default:
/* if a valid type is not found, zero is returned */ /* 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; break;
} }
DC_UnlockDc(pDC); DC_UnlockDc(pDC);