Merge branch 'master' into js-modules

# Conflicts:
#	modules/libpref/init/all.js

1 files changed, 199 insertions, 0 deletions

diff --git a/third_party/aom/aom_dsp/x86/convolve_avx2.h b/third_party/aom/aom_dsp/x86/convolve_avx2.h
new file mode 100644
index 000000000..30253f65c
--- /dev/null
+++ b/third_party/aom/aom_dsp/x86/convolve_avx2.h
@@ -0,0 +1,199 @@
+/*
+ * 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_AOM_DSP_X86_CONVOLVE_AVX2_H_
+#define AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_
+
+// filters for 16
+DECLARE_ALIGNED(32, static const uint8_t, filt_global_avx2[]) = {
+  0,  1,  1,  2,  2, 3,  3,  4,  4,  5,  5,  6,  6,  7,  7,  8,  0,  1,  1,
+  2,  2,  3,  3,  4, 4,  5,  5,  6,  6,  7,  7,  8,  2,  3,  3,  4,  4,  5,
+  5,  6,  6,  7,  7, 8,  8,  9,  9,  10, 2,  3,  3,  4,  4,  5,  5,  6,  6,
+  7,  7,  8,  8,  9, 9,  10, 4,  5,  5,  6,  6,  7,  7,  8,  8,  9,  9,  10,
+  10, 11, 11, 12, 4, 5,  5,  6,  6,  7,  7,  8,  8,  9,  9,  10, 10, 11, 11,
+  12, 6,  7,  7,  8, 8,  9,  9,  10, 10, 11, 11, 12, 12, 13, 13, 14, 6,  7,
+  7,  8,  8,  9,  9, 10, 10, 11, 11, 12, 12, 13, 13, 14
+};
+
+DECLARE_ALIGNED(32, static const uint8_t, filt_d4_global_avx2[]) = {
+  0, 1, 2, 3,  1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, 0, 1, 2, 3,  1, 2,
+  3, 4, 2, 3,  4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7,  8, 9,
+  7, 8, 9, 10, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10,
+};
+
+DECLARE_ALIGNED(32, static const uint8_t, filt4_d4_global_avx2[]) = {
+  2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8,
+  2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8,
+};
+
+static INLINE void prepare_coeffs_lowbd(
+    const InterpFilterParams *const filter_params, const int subpel_q4,
+    __m256i *const coeffs /* [4] */) {
+  const int16_t *const filter = av1_get_interp_filter_subpel_kernel(
+      filter_params, subpel_q4 & SUBPEL_MASK);
+  const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter);
+  const __m256i filter_coeffs = _mm256_broadcastsi128_si256(coeffs_8);
+
+  // right shift all filter co-efficients by 1 to reduce the bits required.
+  // This extra right shift will be taken care of at the end while rounding
+  // the result.
+  // Since all filter co-efficients are even, this change will not affect the
+  // end result
+  assert(_mm_test_all_zeros(_mm_and_si128(coeffs_8, _mm_set1_epi16(1)),
+                            _mm_set1_epi16(0xffff)));
+
+  const __m256i coeffs_1 = _mm256_srai_epi16(filter_coeffs, 1);
+
+  // coeffs 0 1 0 1 0 1 0 1
+  coeffs[0] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0200u));
+  // coeffs 2 3 2 3 2 3 2 3
+  coeffs[1] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0604u));
+  // coeffs 4 5 4 5 4 5 4 5
+  coeffs[2] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0a08u));
+  // coeffs 6 7 6 7 6 7 6 7
+  coeffs[3] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0e0cu));
+}
+
+static INLINE void prepare_coeffs(const InterpFilterParams *const filter_params,
+                                  const int subpel_q4,
+                                  __m256i *const coeffs /* [4] */) {
+  const int16_t *filter = av1_get_interp_filter_subpel_kernel(
+      filter_params, subpel_q4 & SUBPEL_MASK);
+
+  const __m128i coeff_8 = _mm_loadu_si128((__m128i *)filter);
+  const __m256i coeff = _mm256_broadcastsi128_si256(coeff_8);
+
+  // coeffs 0 1 0 1 0 1 0 1
+  coeffs[0] = _mm256_shuffle_epi32(coeff, 0x00);
+  // coeffs 2 3 2 3 2 3 2 3
+  coeffs[1] = _mm256_shuffle_epi32(coeff, 0x55);
+  // coeffs 4 5 4 5 4 5 4 5
+  coeffs[2] = _mm256_shuffle_epi32(coeff, 0xaa);
+  // coeffs 6 7 6 7 6 7 6 7
+  coeffs[3] = _mm256_shuffle_epi32(coeff, 0xff);
+}
+
+static INLINE __m256i convolve_lowbd(const __m256i *const s,
+                                     const __m256i *const coeffs) {
+  const __m256i res_01 = _mm256_maddubs_epi16(s[0], coeffs[0]);
+  const __m256i res_23 = _mm256_maddubs_epi16(s[1], coeffs[1]);
+  const __m256i res_45 = _mm256_maddubs_epi16(s[2], coeffs[2]);
+  const __m256i res_67 = _mm256_maddubs_epi16(s[3], coeffs[3]);
+
+  // order: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+  const __m256i res = _mm256_add_epi16(_mm256_add_epi16(res_01, res_45),
+                                       _mm256_add_epi16(res_23, res_67));
+
+  return res;
+}
+
+static INLINE __m256i convolve(const __m256i *const s,
+                               const __m256i *const coeffs) {
+  const __m256i res_0 = _mm256_madd_epi16(s[0], coeffs[0]);
+  const __m256i res_1 = _mm256_madd_epi16(s[1], coeffs[1]);
+  const __m256i res_2 = _mm256_madd_epi16(s[2], coeffs[2]);
+  const __m256i res_3 = _mm256_madd_epi16(s[3], coeffs[3]);
+
+  const __m256i res = _mm256_add_epi32(_mm256_add_epi32(res_0, res_1),
+                                       _mm256_add_epi32(res_2, res_3));
+
+  return res;
+}
+
+static INLINE __m256i convolve_lowbd_x(const __m256i data,
+                                       const __m256i *const coeffs,
+                                       const __m256i *const filt) {
+  __m256i s[4];
+
+  s[0] = _mm256_shuffle_epi8(data, filt[0]);
+  s[1] = _mm256_shuffle_epi8(data, filt[1]);
+  s[2] = _mm256_shuffle_epi8(data, filt[2]);
+  s[3] = _mm256_shuffle_epi8(data, filt[3]);
+
+  return convolve_lowbd(s, coeffs);
+}
+
+static INLINE void add_store_aligned_256(CONV_BUF_TYPE *const dst,
+                                         const __m256i *const res,
+                                         const int do_average) {
+  __m256i d;
+  if (do_average) {
+    d = _mm256_load_si256((__m256i *)dst);
+    d = _mm256_add_epi32(d, *res);
+    d = _mm256_srai_epi32(d, 1);
+  } else {
+    d = *res;
+  }
+  _mm256_store_si256((__m256i *)dst, d);
+}
+
+static INLINE __m256i comp_avg(const __m256i *const data_ref_0,
+                               const __m256i *const res_unsigned,
+                               const __m256i *const wt,
+                               const int use_jnt_comp_avg) {
+  __m256i res;
+  if (use_jnt_comp_avg) {
+    const __m256i data_lo = _mm256_unpacklo_epi16(*data_ref_0, *res_unsigned);
+    const __m256i data_hi = _mm256_unpackhi_epi16(*data_ref_0, *res_unsigned);
+
+    const __m256i wt_res_lo = _mm256_madd_epi16(data_lo, *wt);
+    const __m256i wt_res_hi = _mm256_madd_epi16(data_hi, *wt);
+
+    const __m256i res_lo = _mm256_srai_epi32(wt_res_lo, DIST_PRECISION_BITS);
+    const __m256i res_hi = _mm256_srai_epi32(wt_res_hi, DIST_PRECISION_BITS);
+
+    res = _mm256_packs_epi32(res_lo, res_hi);
+  } else {
+    const __m256i wt_res = _mm256_add_epi16(*data_ref_0, *res_unsigned);
+    res = _mm256_srai_epi16(wt_res, 1);
+  }
+  return res;
+}
+
+static INLINE __m256i convolve_rounding(const __m256i *const res_unsigned,
+                                        const __m256i *const offset_const,
+                                        const __m256i *const round_const,
+                                        const int round_shift) {
+  const __m256i res_signed = _mm256_sub_epi16(*res_unsigned, *offset_const);
+  const __m256i res_round = _mm256_srai_epi16(
+      _mm256_add_epi16(res_signed, *round_const), round_shift);
+  return res_round;
+}
+
+static INLINE __m256i highbd_comp_avg(const __m256i *const data_ref_0,
+                                      const __m256i *const res_unsigned,
+                                      const __m256i *const wt0,
+                                      const __m256i *const wt1,
+                                      const int use_jnt_comp_avg) {
+  __m256i res;
+  if (use_jnt_comp_avg) {
+    const __m256i wt0_res = _mm256_mullo_epi32(*data_ref_0, *wt0);
+    const __m256i wt1_res = _mm256_mullo_epi32(*res_unsigned, *wt1);
+    const __m256i wt_res = _mm256_add_epi32(wt0_res, wt1_res);
+    res = _mm256_srai_epi32(wt_res, DIST_PRECISION_BITS);
+  } else {
+    const __m256i wt_res = _mm256_add_epi32(*data_ref_0, *res_unsigned);
+    res = _mm256_srai_epi32(wt_res, 1);
+  }
+  return res;
+}
+
+static INLINE __m256i highbd_convolve_rounding(
+    const __m256i *const res_unsigned, const __m256i *const offset_const,
+    const __m256i *const round_const, const int round_shift) {
+  const __m256i res_signed = _mm256_sub_epi32(*res_unsigned, *offset_const);
+  const __m256i res_round = _mm256_srai_epi32(
+      _mm256_add_epi32(res_signed, *round_const), round_shift);
+
+  return res_round;
+}
+
+#endif  // AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_