1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/x86/av1_txfm_sse4.h b/third_party/aom/av1/common/x86/av1_txfm_sse4.h
new file mode 100644
index 000000000..6cad821b1
--- /dev/null
+++ b/third_party/aom/av1/common/x86/av1_txfm_sse4.h
@@ -0,0 +1,72 @@
+/*
+ * 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.
+ */
+
+#ifndef AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_
+#define AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_
+
+#include <smmintrin.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static INLINE __m128i av1_round_shift_32_sse4_1(__m128i vec, int bit) {
+  __m128i tmp, round;
+  round = _mm_set1_epi32(1 << (bit - 1));
+  tmp = _mm_add_epi32(vec, round);
+  return _mm_srai_epi32(tmp, bit);
+}
+
+static INLINE void av1_round_shift_array_32_sse4_1(__m128i *input,
+                                                   __m128i *output,
+                                                   const int size,
+                                                   const int bit) {
+  if (bit > 0) {
+    int i;
+    for (i = 0; i < size; i++) {
+      output[i] = av1_round_shift_32_sse4_1(input[i], bit);
+    }
+  } else {
+    int i;
+    for (i = 0; i < size; i++) {
+      output[i] = _mm_slli_epi32(input[i], -bit);
+    }
+  }
+}
+
+static INLINE void av1_round_shift_rect_array_32_sse4_1(__m128i *input,
+                                                        __m128i *output,
+                                                        const int size,
+                                                        const int bit,
+                                                        const int val) {
+  const __m128i sqrt2 = _mm_set1_epi32(val);
+  if (bit > 0) {
+    int i;
+    for (i = 0; i < size; i++) {
+      const __m128i r0 = av1_round_shift_32_sse4_1(input[i], bit);
+      const __m128i r1 = _mm_mullo_epi32(sqrt2, r0);
+      output[i] = av1_round_shift_32_sse4_1(r1, NewSqrt2Bits);
+    }
+  } else {
+    int i;
+    for (i = 0; i < size; i++) {
+      const __m128i r0 = _mm_slli_epi32(input[i], -bit);
+      const __m128i r1 = _mm_mullo_epi32(sqrt2, r0);
+      output[i] = av1_round_shift_32_sse4_1(r1, NewSqrt2Bits);
+    }
+  }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_