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- Hack around the system start up Dll Initialization Bug for GdiHandleTable.
svn path=/trunk/; revision=41191
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@ -124,47 +124,43 @@ BOOL GdiIsHandleValid(HGDIOBJ hGdiObj)
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BOOL GdiGetHandleUserData(HGDIOBJ hGdiObj, DWORD ObjectType, PVOID *UserData)
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{
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if ( GdiHandleTable )
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if ( !GdiHandleTable )
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{
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PGDI_TABLE_ENTRY Entry = GdiHandleTable + GDI_HANDLE_GET_INDEX(hGdiObj);
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if((Entry->Type & GDI_ENTRY_BASETYPE_MASK) == ObjectType &&
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( (Entry->Type << GDI_ENTRY_UPPER_SHIFT) & GDI_HANDLE_TYPE_MASK ) ==
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GDI_HANDLE_GET_TYPE(hGdiObj))
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{
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HANDLE pid = (HANDLE)((ULONG_PTR)Entry->ProcessId & ~0x1);
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if(pid == NULL || pid == CurrentProcessId)
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{
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//
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// Need to test if we have Read & Write access to the VM address space.
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//
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BOOL Result = TRUE;
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if(Entry->UserData)
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// FIXME HAX!! Due to the "Dll Initialization Bug" set the local handle table pointer.
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GdiHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
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}
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PGDI_TABLE_ENTRY Entry = GdiHandleTable + GDI_HANDLE_GET_INDEX(hGdiObj);
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if((Entry->Type & GDI_ENTRY_BASETYPE_MASK) == ObjectType &&
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( (Entry->Type << GDI_ENTRY_UPPER_SHIFT) & GDI_HANDLE_TYPE_MASK ) ==
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GDI_HANDLE_GET_TYPE(hGdiObj))
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{
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HANDLE pid = (HANDLE)((ULONG_PTR)Entry->ProcessId & ~0x1);
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if(pid == NULL || pid == CurrentProcessId)
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{
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//
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// Need to test if we have Read & Write access to the VM address space.
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//
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BOOL Result = TRUE;
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if(Entry->UserData)
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{
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volatile CHAR *Current = (volatile CHAR*)Entry->UserData;
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_SEH2_TRY
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{
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volatile CHAR *Current = (volatile CHAR*)Entry->UserData;
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_SEH2_TRY
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{
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*Current = *Current;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Result = FALSE;
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}
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_SEH2_END
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*Current = *Current;
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}
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else
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Result = FALSE; // Can not be zero.
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if (Result) *UserData = Entry->UserData;
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return Result;
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}
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}
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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else
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{
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DPRINT1("!GGHUD: Warning System Initialization Error!!!! GdiHandleTable == 0x%x !!!\n",GdiHandleTable);
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*UserData = NULL;
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Result = FALSE;
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}
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_SEH2_END
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}
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else
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Result = FALSE; // Can not be zero.
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if (Result) *UserData = Entry->UserData;
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return Result;
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}
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}
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SetLastError(ERROR_INVALID_PARAMETER);
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return FALSE;
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}
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@ -172,43 +168,40 @@ PLDC
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FASTCALL
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GdiGetLDC(HDC hDC)
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{
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if ( GdiHandleTable )
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if ( !GdiHandleTable )
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{
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PDC_ATTR Dc_Attr;
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PGDI_TABLE_ENTRY Entry = GdiHandleTable + GDI_HANDLE_GET_INDEX((HGDIOBJ) hDC);
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HANDLE pid = (HANDLE)((ULONG_PTR)Entry->ProcessId & ~0x1);
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// Don't check the mask, just the object type.
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if ( Entry->ObjectType == GDIObjType_DC_TYPE &&
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(pid == NULL || pid == CurrentProcessId) )
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{
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BOOL Result = TRUE;
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if (Entry->UserData)
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{
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volatile CHAR *Current = (volatile CHAR*)Entry->UserData;
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_SEH2_TRY
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{
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*Current = *Current;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Result = FALSE;
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}
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_SEH2_END
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}
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else
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Result = FALSE;
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if (Result)
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{
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Dc_Attr = (PDC_ATTR)Entry->UserData;
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return Dc_Attr->pvLDC;
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}
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}
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return NULL;
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// FIXME HAX!! Due to the "Dll Initialization Bug" set the local handle table pointer.
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GdiHandleTable = NtCurrentTeb()->ProcessEnvironmentBlock->GdiSharedHandleTable;
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}
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else
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PDC_ATTR Dc_Attr;
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PGDI_TABLE_ENTRY Entry = GdiHandleTable + GDI_HANDLE_GET_INDEX((HGDIOBJ) hDC);
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HANDLE pid = (HANDLE)((ULONG_PTR)Entry->ProcessId & ~0x1);
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// Don't check the mask, just the object type.
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if ( Entry->ObjectType == GDIObjType_DC_TYPE &&
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(pid == NULL || pid == CurrentProcessId) )
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{
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DPRINT1("!LDC: Warning System Initialization Error!!!! GdiHandleTable == 0x%x !!!\n",GdiHandleTable);
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BOOL Result = TRUE;
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if (Entry->UserData)
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{
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volatile CHAR *Current = (volatile CHAR*)Entry->UserData;
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_SEH2_TRY
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{
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*Current = *Current;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Result = FALSE;
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}
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_SEH2_END
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}
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else
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Result = FALSE;
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if (Result)
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{
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Dc_Attr = (PDC_ATTR)Entry->UserData;
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return Dc_Attr->pvLDC;
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}
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}
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return NULL;
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}
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