Move compare low levels into their own files, for consistency with NEON.
BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/921004
git-svn-id: http://libyuv.googlecode.com/svn/trunk@429 16f28f9a-4ce2-e073-06de-1de4eb20be90
diff --git a/source/compare_common.cc b/source/compare_common.cc
new file mode 100644
index 0000000..9fa801e
--- /dev/null
+++ b/source/compare_common.cc
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012 The LibYuv Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "libyuv/basic_types.h"
+
+#ifdef __cplusplus
+namespace libyuv {
+extern "C" {
+#endif
+
+uint32 SumSquareError_C(const uint8* src_a, const uint8* src_b, int count) {
+ uint32 sse = 0u;
+ for (int i = 0; i < count; ++i) {
+ int diff = src_a[i] - src_b[i];
+ sse += static_cast<uint32>(diff * diff);
+ }
+ return sse;
+}
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace libyuv
+#endif
+