1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/intrapred_x86.h b/third_party/aom/aom_dsp/x86/intrapred_x86.h
new file mode 100644
index 0000000000..b13f575a76
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+++ b/third_party/aom/aom_dsp/x86/intrapred_x86.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2020, 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.
+ */
+
+#ifndef AOM_AOM_DSP_X86_INTRAPRED_X86_H_
+#define AOM_AOM_DSP_X86_INTRAPRED_X86_H_
+
+#include <emmintrin.h>  // SSE2
+#include "aom/aom_integer.h"
+#include "config/aom_config.h"
+
+static INLINE __m128i dc_sum_16_sse2(const uint8_t *ref) {
+  __m128i x = _mm_load_si128((__m128i const *)ref);
+  const __m128i zero = _mm_setzero_si128();
+  x = _mm_sad_epu8(x, zero);
+  const __m128i high = _mm_unpackhi_epi64(x, x);
+  return _mm_add_epi16(x, high);
+}
+
+static INLINE __m128i dc_sum_32_sse2(const uint8_t *ref) {
+  __m128i x0 = _mm_load_si128((__m128i const *)ref);
+  __m128i x1 = _mm_load_si128((__m128i const *)(ref + 16));
+  const __m128i zero = _mm_setzero_si128();
+  x0 = _mm_sad_epu8(x0, zero);
+  x1 = _mm_sad_epu8(x1, zero);
+  x0 = _mm_add_epi16(x0, x1);
+  const __m128i high = _mm_unpackhi_epi64(x0, x0);
+  return _mm_add_epi16(x0, high);
+}
+
+#endif  // AOM_AOM_DSP_X86_INTRAPRED_X86_H_