1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/blk_sse_sum.c b/third_party/aom/aom_dsp/blk_sse_sum.c
new file mode 100644
index 0000000000..d76c3f87b9
--- /dev/null
+++ b/third_party/aom/aom_dsp/blk_sse_sum.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2019, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "config/aom_dsp_rtcd.h"
+
+void aom_get_blk_sse_sum_c(const int16_t *data, int stride, int bw, int bh,
+                           int *x_sum, int64_t *x2_sum) {
+  *x_sum = 0;
+  *x2_sum = 0;
+  for (int i = 0; i < bh; ++i) {
+    for (int j = 0; j < bw; ++j) {
+      const int val = data[j];
+      *x_sum += val;
+      *x2_sum += val * val;
+    }
+    data += stride;
+  }
+}