1 files changed, 51 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/x86/quantize_ssse3.h b/media/libvpx/libvpx/vpx_dsp/x86/quantize_ssse3.h
new file mode 100644
index 0000000000..e8d2a05771
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/x86/quantize_ssse3.h
@@ -0,0 +1,51 @@
+/*
+ *  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_QUANTIZE_SSSE3_H_
+#define VPX_VPX_DSP_X86_QUANTIZE_SSSE3_H_
+
+#include <emmintrin.h>
+
+#include "./vpx_config.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/x86/quantize_sse2.h"
+
+static INLINE void calculate_dqcoeff_and_store_32x32(const __m128i qcoeff,
+                                                     const __m128i dequant,
+                                                     const __m128i zero,
+                                                     tran_low_t *dqcoeff) {
+  // Un-sign to bias rounding like C.
+  const __m128i coeff = _mm_abs_epi16(qcoeff);
+
+  const __m128i sign_0 = _mm_unpacklo_epi16(zero, qcoeff);
+  const __m128i sign_1 = _mm_unpackhi_epi16(zero, qcoeff);
+
+  const __m128i low = _mm_mullo_epi16(coeff, dequant);
+  const __m128i high = _mm_mulhi_epi16(coeff, dequant);
+  __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high);
+  __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high);
+
+  // "Divide" by 2.
+  dqcoeff32_0 = _mm_srli_epi32(dqcoeff32_0, 1);
+  dqcoeff32_1 = _mm_srli_epi32(dqcoeff32_1, 1);
+
+  dqcoeff32_0 = _mm_sign_epi32(dqcoeff32_0, sign_0);
+  dqcoeff32_1 = _mm_sign_epi32(dqcoeff32_1, sign_1);
+
+#if CONFIG_VP9_HIGHBITDEPTH
+  _mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0);
+  _mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1);
+#else
+  _mm_store_si128((__m128i *)(dqcoeff),
+                  _mm_packs_epi32(dqcoeff32_0, dqcoeff32_1));
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+}
+
+#endif  // VPX_VPX_DSP_X86_QUANTIZE_SSSE3_H_