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-rw-r--r--third_party/aom/aom_dsp/sse.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/sse.c b/third_party/aom/aom_dsp/sse.c
new file mode 100644
index 000000000..249394807
--- /dev/null
+++ b/third_party/aom/aom_dsp/sse.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2018, 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.
+ */
+
+/* Sum the difference between every corresponding element of the buffers. */
+
+#include "config/aom_config.h"
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom/aom_integer.h"
+
+int64_t aom_sse_c(const uint8_t *a, int a_stride, const uint8_t *b,
+ int b_stride, int width, int height) {
+ int y, x;
+ int64_t sse = 0;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ const int32_t diff = abs(a[x] - b[x]);
+ sse += diff * diff;
+ }
+
+ a += a_stride;
+ b += b_stride;
+ }
+ return sse;
+}
+
+int64_t aom_highbd_sse_c(const uint8_t *a8, int a_stride, const uint8_t *b8,
+ int b_stride, int width, int height) {
+ int y, x;
+ int64_t sse = 0;
+ uint16_t *a = CONVERT_TO_SHORTPTR(a8);
+ uint16_t *b = CONVERT_TO_SHORTPTR(b8);
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ const int32_t diff = (int32_t)(a[x]) - (int32_t)(b[x]);
+ sse += diff * diff;
+ }
+
+ a += a_stride;
+ b += b_stride;
+ }
+ return sse;
+}