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fixing smaller bugs in NtGdiDdWaitForVerticalBlank now it is compatible with windows 2000 in all my test case.

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svn path=/trunk/; revision=26282
This commit is contained in:
Magnus Olsen 2007-04-08 12:05:22 +00:00
parent 923523688f
commit ce8c107dbc
1 changed files with 41 additions and 34 deletions
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19
reactos/subsystems/win32/win32k/ntddraw/dd.c
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@ -386,13 +386,19 @@ DWORD STDCALL NtGdiDdWaitForVerticalBlank(
PDD_DIRECTDRAW pDirectDraw = NULL;
NTSTATUS Status = FALSE;
DD_WAITFORVERTICALBLANKDATA WaitForVerticalBlankData;
LPDDHAL_WAITFORVERTICALBLANKDATA pWaitForVerticalBlankData = (LPDDHAL_WAITFORVERTICALBLANKDATA)puWaitForVerticalBlankData;
DPRINT1("NtGdiDdWaitForVerticalBlank\n");
if ((hDirectDrawLocal) &&
(puWaitForVerticalBlankData))
{
RtlZeroMemory(&WaitForVerticalBlankData,sizeof(DD_WAITFORVERTICALBLANKDATA));
_SEH_TRY
{
ProbeForRead(puWaitForVerticalBlankData, sizeof(DD_WAITFORVERTICALBLANKDATA), 1);
RtlCopyMemory(&WaitForVerticalBlankData,puWaitForVerticalBlankData, sizeof(DD_WAITFORVERTICALBLANKDATA));
ProbeForRead(pWaitForVerticalBlankData, sizeof(DDHAL_WAITFORVERTICALBLANKDATA), 1);
WaitForVerticalBlankData.dwFlags = pWaitForVerticalBlankData->dwFlags;
WaitForVerticalBlankData.bIsInVB = pWaitForVerticalBlankData->bIsInVB;
WaitForVerticalBlankData.hEvent = pWaitForVerticalBlankData->hEvent;
}
_SEH_HANDLE
{
@ -414,9 +420,9 @@ DWORD STDCALL NtGdiDdWaitForVerticalBlank(
}
_SEH_TRY
{
ProbeForWrite(puWaitForVerticalBlankData, sizeof(DD_WAITFORVERTICALBLANKDATA), 1);
puWaitForVerticalBlankData->ddRVal = WaitForVerticalBlankData.ddRVal;
puWaitForVerticalBlankData->bIsInVB = WaitForVerticalBlankData.bIsInVB;
ProbeForWrite(pWaitForVerticalBlankData, sizeof(DDHAL_WAITFORVERTICALBLANKDATA), 1);
pWaitForVerticalBlankData->ddRVal = WaitForVerticalBlankData.ddRVal;
pWaitForVerticalBlankData->bIsInVB = WaitForVerticalBlankData.bIsInVB;
}
_SEH_HANDLE
{
@ -427,6 +433,7 @@ DWORD STDCALL NtGdiDdWaitForVerticalBlank(
GDIOBJ_UnlockObjByPtr(DdHandleTable, pDirectDraw);
}
}
}
return ddRVal;
}