1 files changed, 56 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_sse2.h b/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_sse2.h
new file mode 100644
index 0000000000..74dde656b1
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/x86/bitdepth_conversion_sse2.h
@@ -0,0 +1,56 @@
+/*
+ *  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_SSE2_H_
+#define VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_SSE2_H_
+
+#include <xmmintrin.h>
+
+#include "./vpx_config.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+
+// Load 8 16 bit values. If the source is 32 bits then pack down with
+// saturation.
+static INLINE __m128i load_tran_low(const tran_low_t *a) {
+#if CONFIG_VP9_HIGHBITDEPTH
+  const __m128i a_low = _mm_load_si128((const __m128i *)a);
+  return _mm_packs_epi32(a_low, *(const __m128i *)(a + 4));
+#else
+  return _mm_load_si128((const __m128i *)a);
+#endif
+}
+
+// Store 8 16 bit values. If the destination is 32 bits then sign extend the
+// values by multiplying by 1.
+static INLINE void store_tran_low(__m128i a, tran_low_t *b) {
+#if CONFIG_VP9_HIGHBITDEPTH
+  const __m128i one = _mm_set1_epi16(1);
+  const __m128i a_hi = _mm_mulhi_epi16(a, one);
+  const __m128i a_lo = _mm_mullo_epi16(a, one);
+  const __m128i a_1 = _mm_unpacklo_epi16(a_lo, a_hi);
+  const __m128i a_2 = _mm_unpackhi_epi16(a_lo, a_hi);
+  _mm_store_si128((__m128i *)(b), a_1);
+  _mm_store_si128((__m128i *)(b + 4), a_2);
+#else
+  _mm_store_si128((__m128i *)(b), a);
+#endif
+}
+
+// Zero fill 8 positions in the output buffer.
+static INLINE void store_zero_tran_low(tran_low_t *a) {
+  const __m128i zero = _mm_setzero_si128();
+#if CONFIG_VP9_HIGHBITDEPTH
+  _mm_store_si128((__m128i *)(a), zero);
+  _mm_store_si128((__m128i *)(a + 4), zero);
+#else
+  _mm_store_si128((__m128i *)(a), zero);
+#endif
+}
+#endif  // VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_SSE2_H_