1 files changed, 44 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_avx2.h b/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_avx2.h
new file mode 100644
index 0000000000..c02b47a3eb
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_avx2.h
@@ -0,0 +1,44 @@
+/*
+ *  Copyright (c) 2017 The WebM 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.
+ */
+#ifndef VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
+#define VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
+
+#include <immintrin.h>
+
+#include "./vpx_config.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+
+// Load 16 16 bit values. If the source is 32 bits then pack down with
+// saturation.
+static INLINE __m256i load_tran_low(const tran_low_t *a) {
+#if CONFIG_VP9_HIGHBITDEPTH
+  const __m256i a_low = _mm256_loadu_si256((const __m256i *)a);
+  const __m256i a_high = _mm256_loadu_si256((const __m256i *)(a + 8));
+  return _mm256_packs_epi32(a_low, a_high);
+#else
+  return _mm256_loadu_si256((const __m256i *)a);
+#endif
+}
+
+static INLINE void store_tran_low(__m256i a, tran_low_t *b) {
+#if CONFIG_VP9_HIGHBITDEPTH
+  const __m256i one = _mm256_set1_epi16(1);
+  const __m256i a_hi = _mm256_mulhi_epi16(a, one);
+  const __m256i a_lo = _mm256_mullo_epi16(a, one);
+  const __m256i a_1 = _mm256_unpacklo_epi16(a_lo, a_hi);
+  const __m256i a_2 = _mm256_unpackhi_epi16(a_lo, a_hi);
+  _mm256_storeu_si256((__m256i *)b, a_1);
+  _mm256_storeu_si256((__m256i *)(b + 8), a_2);
+#else
+  _mm256_storeu_si256((__m256i *)b, a);
+#endif
+}
+#endif  // VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_