MERGE

1 files changed, 41 insertions, 0 deletions

diff --git a/Software/Visual_Studio/SideChains/RealTimeGraphEx/WriteableBitmap/NativeMethods.cs b/Software/Visual_Studio/SideChains/RealTimeGraphEx/WriteableBitmap/NativeMethods.cs
new file mode 100644
index 000000000..59b2b7bcc
--- /dev/null
+++ b/Software/Visual_Studio/SideChains/RealTimeGraphEx/WriteableBitmap/NativeMethods.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Runtime;
+using System.Runtime.InteropServices;
+
+namespace System.Windows.Media.Imaging
+{
+    internal static class NativeMethods
+    {
+        [TargetedPatchingOptOut("Internal method only, inlined across NGen boundaries for performance reasons")]
+        internal static unsafe void CopyUnmanagedMemory(byte* srcPtr, int srcOffset, byte* dstPtr, int dstOffset, int count)
+        {
+            srcPtr += srcOffset;
+            dstPtr += dstOffset;
+
+            memcpy(dstPtr, srcPtr, count);
+        }
+
+        [TargetedPatchingOptOut("Internal method only, inlined across NGen boundaries for performance reasons")]
+        internal static void SetUnmanagedMemory(IntPtr dst, int filler, int count)
+        {
+            memset(dst, filler, count);
+        }
+
+        // Win32 memory copy function
+        //[DllImport("ntdll.dll")]
+        [DllImport("msvcrt.dll", EntryPoint = "memcpy", CallingConvention = CallingConvention.Cdecl, SetLastError = false)]
+        private static extern unsafe byte* memcpy(
+            byte* dst,
+            byte* src,
+            int count);
+        
+        // Win32 memory set function
+        //[DllImport("ntdll.dll")]
+        //[DllImport("coredll.dll", EntryPoint = "memset", SetLastError = false)]
+        [DllImport("msvcrt.dll", EntryPoint = "memset", CallingConvention = CallingConvention.Cdecl, SetLastError = false)]
+        private static extern void memset(
+            IntPtr dst,
+            int filler,
+            int count);
+    }
+}