Export MmCopyFrom/ToCaller from ntoskrnl. Added MulDiv.

svn path=/trunk/; revision=3261

reactos/include/ddk/winddi.h

@@ -1204,11 +1204,15 @@ EngMapFontFile
 EngMapModule
 EngMarkBandingSurface
 EngMovePointer
-EngMulDiv
 EngMultiByteToUnicodeN
 EngMultiByteToWideChar
 */
 
+INT STDCALL EngMulDiv(
+	     INT nMultiplicand,
+	     INT nMultiplier,
+	     INT nDivisor);
+
 BOOL STDCALL
 EngPaint(IN SURFOBJ *Surface,
 	 IN CLIPOBJ *ClipRegion,

reactos/lib/kernel32/misc/stubs.c

@@ -1,4 +1,4 @@
-/* $Id: stubs.c,v 1.28 2001/05/03 06:13:05 ekohl Exp $
+/* $Id: stubs.c,v 1.29 2002/07/18 21:49:58 ei Exp $
  *
  * KERNEL32.DLL stubs (unimplemented functions)
  * Remove from this file, if you implement them.
@@ -872,16 +872,58 @@ LoadModule (
 }
 
 
-int
-STDCALL
-MulDiv (
-	int	nNumber,
-	int	nNumerator,
-	int	nDenominator
-	)
+/***********************************************************************
+ *           MulDiv   (KERNEL32.@)
+ * RETURNS
+ *	Result of multiplication and division
+ *	-1: Overflow occurred or Divisor was 0
+ */
+
+//FIXME! move to correct file
+INT STDCALL MulDiv(
+	     INT nMultiplicand,
+	     INT nMultiplier,
+	     INT nDivisor)
 {
-	SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
-	return 0;
+#if SIZEOF_LONG_LONG >= 8
+    long long ret;
+
+    if (!nDivisor) return -1;
+
+    /* We want to deal with a positive divisor to simplify the logic. */
+    if (nDivisor < 0)
+    {
+      nMultiplicand = - nMultiplicand;
+      nDivisor = -nDivisor;
+    }
+
+    /* If the result is positive, we "add" to round. else, we subtract to round. */
+    if ( ( (nMultiplicand <  0) && (nMultiplier <  0) ) ||
+	 ( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
+      ret = (((long long)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
+    else
+      ret = (((long long)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
+
+    if ((ret > 2147483647) || (ret < -2147483647)) return -1;
+    return ret;
+#else
+    if (!nDivisor) return -1;
+
+    /* We want to deal with a positive divisor to simplify the logic. */
+    if (nDivisor < 0)
+    {
+      nMultiplicand = - nMultiplicand;
+      nDivisor = -nDivisor;
+    }
+
+    /* If the result is positive, we "add" to round. else, we subtract to round. */
+    if ( ( (nMultiplicand <  0) && (nMultiplier <  0) ) ||
+	 ( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
+      return ((nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
+
+    return ((nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
+
+#endif
 }
 
 

reactos/ntoskrnl/include/internal/safe.h

@@ -4,9 +4,9 @@
 NTSTATUS MmSafeCopyFromUser(PVOID Dest, PVOID Src, ULONG NumberOfBytes);
 NTSTATUS MmSafeCopyToUser(PVOID Dest, PVOID Src, ULONG NumberOfBytes);
 
-NTSTATUS
+NTSTATUS STDCALL
 MmCopyFromCaller(PVOID Dest, PVOID Src, ULONG NumberOfBytes);
-NTSTATUS
+NTSTATUS STDCALL
 MmCopyToCaller(PVOID Dest, PVOID Src, ULONG NumberOfBytes);
 
 NTSTATUS

reactos/ntoskrnl/ntoskrnl.def

@@ -1,4 +1,4 @@
-; $Id: ntoskrnl.def,v 1.136 2002/07/18 18:15:09 ekohl Exp $
+; $Id: ntoskrnl.def,v 1.137 2002/07/18 21:49:59 ei Exp $
 ;
 ; reactos/ntoskrnl/ntoskrnl.def
 ;
@@ -474,6 +474,8 @@ MmAllocateContiguousMemory@12
 MmAllocateNonCachedMemory@4
 MmBuildMdlForNonPagedPool@4
 MmCanFileBeTruncated@8
+MmCopyFromCaller@12
+MmCopyToCaller@12
 MmCreateMdl@12
 MmCreateSection@32
 MmDbgTranslatePhysicalAddress@8

reactos/ntoskrnl/ntoskrnl.edf

@@ -1,4 +1,4 @@
-; $Id: ntoskrnl.edf,v 1.122 2002/07/18 18:15:09 ekohl Exp $
+; $Id: ntoskrnl.edf,v 1.123 2002/07/18 21:49:59 ei Exp $
 ;
 ; reactos/ntoskrnl/ntoskrnl.def
 ;
@@ -474,6 +474,8 @@ MmAllocateContiguousMemory=MmAllocateContiguousMemory@12
 MmAllocateNonCachedMemory=MmAllocateNonCachedMemory@4
 MmBuildMdlForNonPagedPool=MmBuildMdlForNonPagedPool@4
 MmCanFileBeTruncated=MmCanFileBeTruncated@8
+MmCopyFromCaller=MmCopyFromCaller@12
+MmCopyToCaller=MmCopyToCaller@12
 MmCreateMdl=MmCreateMdl@12
 MmCreateSection=MmCreateSection@32
 MmDbgTranslatePhysicalAddress=MmDbgTranslatePhysicalAddress@8

reactos/ntoskrnl/rtl/mem.c

@@ -1,4 +1,4 @@
-/* $Id: mem.c,v 1.13 2002/05/14 21:19:21 dwelch Exp $
+/* $Id: mem.c,v 1.14 2002/07/18 21:49:59 ei Exp $
  *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
@@ -19,7 +19,7 @@
 
 /* FUNCTIONS *****************************************************************/
 
-NTSTATUS
+NTSTATUS STDCALL
 MmCopyToCaller(PVOID Dest, PVOID Src, ULONG NumberOfBytes)
 {
   NTSTATUS Status;
@@ -40,7 +40,7 @@ MmCopyToCaller(PVOID Dest, PVOID Src, ULONG NumberOfBytes)
     }
 }
 
-NTSTATUS
+NTSTATUS STDCALL
 MmCopyFromCaller(PVOID Dest, PVOID Src, ULONG NumberOfBytes)
 {
   NTSTATUS Status;