1 files changed, 282 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/aom_quantize_avx.c b/third_party/aom/aom_dsp/x86/aom_quantize_avx.c
new file mode 100644
index 0000000000..b2d6d4b76d
--- /dev/null
+++ b/third_party/aom/aom_dsp/x86/aom_quantize_avx.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2020, 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.
+ */
+
+#include <immintrin.h>
+
+#include "config/aom_dsp_rtcd.h"
+#include "aom/aom_integer.h"
+#include "aom_dsp/x86/bitdepth_conversion_sse2.h"
+#include "aom_dsp/x86/quantize_x86.h"
+
+static INLINE void calculate_dqcoeff_and_store(__m128i qcoeff, __m128i dequant,
+                                               tran_low_t *dqcoeff) {
+  const __m128i low = _mm_mullo_epi16(qcoeff, dequant);
+  const __m128i high = _mm_mulhi_epi16(qcoeff, dequant);
+
+  const __m128i dqcoeff32_0 = _mm_unpacklo_epi16(low, high);
+  const __m128i dqcoeff32_1 = _mm_unpackhi_epi16(low, high);
+
+  _mm_store_si128((__m128i *)(dqcoeff), dqcoeff32_0);
+  _mm_store_si128((__m128i *)(dqcoeff + 4), dqcoeff32_1);
+}
+
+void aom_quantize_b_avx(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                        const int16_t *zbin_ptr, const int16_t *round_ptr,
+                        const int16_t *quant_ptr,
+                        const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
+                        tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr,
+                        uint16_t *eob_ptr, const int16_t *scan,
+                        const int16_t *iscan) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m256i big_zero = _mm256_setzero_si256();
+  int index;
+
+  __m128i zbin, round, quant, dequant, shift;
+  __m128i coeff0, coeff1;
+  __m128i qcoeff0, qcoeff1;
+  __m128i cmp_mask0, cmp_mask1;
+  __m128i all_zero;
+  __m128i eob = zero, eob0;
+
+  (void)scan;
+
+  *eob_ptr = 0;
+
+  load_b_values(zbin_ptr, &zbin, round_ptr, &round, quant_ptr, &quant,
+                dequant_ptr, &dequant, quant_shift_ptr, &shift);
+
+  // Do DC and first 15 AC.
+  coeff0 = load_tran_low(coeff_ptr);
+  coeff1 = load_tran_low(coeff_ptr + 8);
+
+  qcoeff0 = _mm_abs_epi16(coeff0);
+  qcoeff1 = _mm_abs_epi16(coeff1);
+
+  cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
+  zbin = _mm_unpackhi_epi64(zbin, zbin);  // Switch DC to AC
+  cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
+
+  all_zero = _mm_or_si128(cmp_mask0, cmp_mask1);
+  if (_mm_test_all_zeros(all_zero, all_zero)) {
+    _mm256_store_si256((__m256i *)(qcoeff_ptr), big_zero);
+    _mm256_store_si256((__m256i *)(dqcoeff_ptr), big_zero);
+    _mm256_store_si256((__m256i *)(qcoeff_ptr + 8), big_zero);
+    _mm256_store_si256((__m256i *)(dqcoeff_ptr + 8), big_zero);
+
+    if (n_coeffs == 16) return;
+
+    round = _mm_unpackhi_epi64(round, round);
+    quant = _mm_unpackhi_epi64(quant, quant);
+    shift = _mm_unpackhi_epi64(shift, shift);
+    dequant = _mm_unpackhi_epi64(dequant, dequant);
+  } else {
+    calculate_qcoeff(&qcoeff0, round, quant, shift);
+    round = _mm_unpackhi_epi64(round, round);
+    quant = _mm_unpackhi_epi64(quant, quant);
+    shift = _mm_unpackhi_epi64(shift, shift);
+    calculate_qcoeff(&qcoeff1, round, quant, shift);
+
+    // Reinsert signs
+    qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0);
+    qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1);
+
+    // Mask out zbin threshold coeffs
+    qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
+    qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
+
+    store_tran_low(qcoeff0, qcoeff_ptr);
+    store_tran_low(qcoeff1, qcoeff_ptr + 8);
+
+    calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr);
+    dequant = _mm_unpackhi_epi64(dequant, dequant);
+    calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + 8);
+
+    eob =
+        scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero);
+  }
+
+  // AC only loop.
+  for (index = 16; index < n_coeffs; index += 16) {
+    coeff0 = load_tran_low(coeff_ptr + index);
+    coeff1 = load_tran_low(coeff_ptr + index + 8);
+
+    qcoeff0 = _mm_abs_epi16(coeff0);
+    qcoeff1 = _mm_abs_epi16(coeff1);
+
+    cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
+    cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
+
+    all_zero = _mm_or_si128(cmp_mask0, cmp_mask1);
+    if (_mm_test_all_zeros(all_zero, all_zero)) {
+      _mm256_store_si256((__m256i *)(qcoeff_ptr + index), big_zero);
+      _mm256_store_si256((__m256i *)(dqcoeff_ptr + index), big_zero);
+      _mm256_store_si256((__m256i *)(qcoeff_ptr + index + 8), big_zero);
+      _mm256_store_si256((__m256i *)(dqcoeff_ptr + index + 8), big_zero);
+      continue;
+    }
+
+    calculate_qcoeff(&qcoeff0, round, quant, shift);
+    calculate_qcoeff(&qcoeff1, round, quant, shift);
+
+    qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0);
+    qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1);
+
+    qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
+    qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
+
+    store_tran_low(qcoeff0, qcoeff_ptr + index);
+    store_tran_low(qcoeff1, qcoeff_ptr + index + 8);
+
+    calculate_dqcoeff_and_store(qcoeff0, dequant, dqcoeff_ptr + index);
+    calculate_dqcoeff_and_store(qcoeff1, dequant, dqcoeff_ptr + index + 8);
+
+    eob0 = scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, index,
+                        zero);
+    eob = _mm_max_epi16(eob, eob0);
+  }
+
+  *eob_ptr = accumulate_eob(eob);
+}
+
+void aom_quantize_b_32x32_avx(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                              const int16_t *zbin_ptr, const int16_t *round_ptr,
+                              const int16_t *quant_ptr,
+                              const int16_t *quant_shift_ptr,
+                              tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                              const int16_t *dequant_ptr, uint16_t *eob_ptr,
+                              const int16_t *scan, const int16_t *iscan) {
+  const __m128i zero = _mm_setzero_si128();
+  const __m128i one = _mm_set1_epi16(1);
+  const __m256i big_zero = _mm256_setzero_si256();
+  int index;
+  const int log_scale = 1;
+
+  __m128i zbin, round, quant, dequant, shift;
+  __m128i coeff0, coeff1;
+  __m128i qcoeff0, qcoeff1;
+  __m128i cmp_mask0, cmp_mask1;
+  __m128i all_zero;
+  __m128i eob = zero, eob0;
+
+  (void)scan;
+
+  // Setup global values.
+  // The 32x32 halves zbin and round.
+  zbin = _mm_load_si128((const __m128i *)zbin_ptr);
+  // Shift with rounding.
+  zbin = _mm_add_epi16(zbin, one);
+  zbin = _mm_srli_epi16(zbin, 1);
+  // x86 has no "greater *or equal*" comparison. Subtract 1 from zbin so
+  // it is a strict "greater" comparison.
+  zbin = _mm_sub_epi16(zbin, one);
+
+  round = _mm_load_si128((const __m128i *)round_ptr);
+  round = _mm_add_epi16(round, one);
+  round = _mm_srli_epi16(round, 1);
+
+  quant = _mm_load_si128((const __m128i *)quant_ptr);
+  dequant = _mm_load_si128((const __m128i *)dequant_ptr);
+  shift = _mm_load_si128((const __m128i *)quant_shift_ptr);
+
+  // Do DC and first 15 AC.
+  coeff0 = load_tran_low(coeff_ptr);
+  coeff1 = load_tran_low(coeff_ptr + 8);
+
+  qcoeff0 = _mm_abs_epi16(coeff0);
+  qcoeff1 = _mm_abs_epi16(coeff1);
+
+  cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
+  zbin = _mm_unpackhi_epi64(zbin, zbin);  // Switch DC to AC.
+  cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
+
+  all_zero = _mm_or_si128(cmp_mask0, cmp_mask1);
+  if (_mm_test_all_zeros(all_zero, all_zero)) {
+    _mm256_store_si256((__m256i *)(qcoeff_ptr), big_zero);
+    _mm256_store_si256((__m256i *)(dqcoeff_ptr), big_zero);
+    _mm256_store_si256((__m256i *)(qcoeff_ptr + 8), big_zero);
+    _mm256_store_si256((__m256i *)(dqcoeff_ptr + 8), big_zero);
+
+    round = _mm_unpackhi_epi64(round, round);
+    quant = _mm_unpackhi_epi64(quant, quant);
+    shift = _mm_unpackhi_epi64(shift, shift);
+    dequant = _mm_unpackhi_epi64(dequant, dequant);
+  } else {
+    calculate_qcoeff_log_scale(&qcoeff0, round, quant, &shift, &log_scale);
+    round = _mm_unpackhi_epi64(round, round);
+    quant = _mm_unpackhi_epi64(quant, quant);
+    shift = _mm_unpackhi_epi64(shift, shift);
+    calculate_qcoeff_log_scale(&qcoeff1, round, quant, &shift, &log_scale);
+
+    // Reinsert signs.
+    qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0);
+    qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1);
+
+    // Mask out zbin threshold coeffs.
+    qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
+    qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
+
+    store_tran_low(qcoeff0, qcoeff_ptr);
+    store_tran_low(qcoeff1, qcoeff_ptr + 8);
+
+    calculate_dqcoeff_and_store_log_scale(qcoeff0, dequant, zero, dqcoeff_ptr,
+                                          &log_scale);
+    dequant = _mm_unpackhi_epi64(dequant, dequant);
+    calculate_dqcoeff_and_store_log_scale(qcoeff1, dequant, zero,
+                                          dqcoeff_ptr + 8, &log_scale);
+
+    eob =
+        scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, 0, zero);
+  }
+
+  // AC only loop.
+  for (index = 16; index < n_coeffs; index += 16) {
+    coeff0 = load_tran_low(coeff_ptr + index);
+    coeff1 = load_tran_low(coeff_ptr + index + 8);
+
+    qcoeff0 = _mm_abs_epi16(coeff0);
+    qcoeff1 = _mm_abs_epi16(coeff1);
+
+    cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
+    cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
+
+    all_zero = _mm_or_si128(cmp_mask0, cmp_mask1);
+    if (_mm_test_all_zeros(all_zero, all_zero)) {
+      _mm256_store_si256((__m256i *)(qcoeff_ptr + index), big_zero);
+      _mm256_store_si256((__m256i *)(dqcoeff_ptr + index), big_zero);
+      _mm256_store_si256((__m256i *)(qcoeff_ptr + index + 8), big_zero);
+      _mm256_store_si256((__m256i *)(dqcoeff_ptr + index + 8), big_zero);
+      continue;
+    }
+
+    calculate_qcoeff_log_scale(&qcoeff0, round, quant, &shift, &log_scale);
+    calculate_qcoeff_log_scale(&qcoeff1, round, quant, &shift, &log_scale);
+
+    qcoeff0 = _mm_sign_epi16(qcoeff0, coeff0);
+    qcoeff1 = _mm_sign_epi16(qcoeff1, coeff1);
+
+    qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
+    qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
+
+    store_tran_low(qcoeff0, qcoeff_ptr + index);
+    store_tran_low(qcoeff1, qcoeff_ptr + index + 8);
+
+    calculate_dqcoeff_and_store_log_scale(qcoeff0, dequant, zero,
+                                          dqcoeff_ptr + index, &log_scale);
+    calculate_dqcoeff_and_store_log_scale(qcoeff1, dequant, zero,
+                                          dqcoeff_ptr + index + 8, &log_scale);
+
+    eob0 = scan_for_eob(&qcoeff0, &qcoeff1, cmp_mask0, cmp_mask1, iscan, index,
+                        zero);
+    eob = _mm_max_epi16(eob, eob0);
+  }
+
+  *eob_ptr = accumulate_eob(eob);
+}