--- /dev/null
+/*
+ * 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.
+ */
+
+#include <assert.h>
+#if defined(_MSC_VER)
+#include <intrin.h>
+#endif
+#include <immintrin.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/x86/bitdepth_conversion_sse2.h"
+
+void vpx_quantize_b_avx(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+ int skip_block, 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_ptr,
+ const int16_t *iscan_ptr) {
+ 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 qtmp0, qtmp1;
+ __m128i zero_coeff0, zero_coeff1, iscan0, iscan1;
+ __m128i eob = zero, eob0, eob1;
+
+ (void)scan_ptr;
+ (void)skip_block;
+ assert(!skip_block);
+
+ *eob_ptr = 0;
+
+ // Setup global values.
+ zbin = _mm_load_si128((const __m128i *)zbin_ptr);
+ // x86 has no "greater *or equal* comparison. Subtract 1 from zbin so
+ // it is a strict "greater" comparison.
+ zbin = _mm_sub_epi16(zbin, _mm_set1_epi16(1));
+ round = _mm_load_si128((const __m128i *)round_ptr);
+ 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);
+#if CONFIG_VP9_HIGHBITDEPTH
+ _mm256_store_si256((__m256i *)(qcoeff_ptr + 8), big_zero);
+ _mm256_store_si256((__m256i *)(dqcoeff_ptr + 8), big_zero);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+ 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 {
+ qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+ round = _mm_unpackhi_epi64(round, round);
+ qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+
+ qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
+ quant = _mm_unpackhi_epi64(quant, quant);
+ qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+ qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
+ qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
+
+ qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
+ shift = _mm_unpackhi_epi64(shift, shift);
+ qcoeff1 = _mm_mulhi_epi16(qtmp1, 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);
+
+ coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+ dequant = _mm_unpackhi_epi64(dequant, dequant);
+ coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+ store_tran_low(coeff0, dqcoeff_ptr);
+ store_tran_low(coeff1, dqcoeff_ptr + 8);
+
+ // Scan for eob.
+ zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
+ zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
+ iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr));
+ iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + 8));
+ // Add one to convert from indices to counts
+ iscan0 = _mm_sub_epi16(iscan0, cmp_mask0);
+ iscan1 = _mm_sub_epi16(iscan1, cmp_mask1);
+ eob = _mm_andnot_si128(zero_coeff0, iscan0);
+ eob1 = _mm_andnot_si128(zero_coeff1, iscan1);
+ eob = _mm_max_epi16(eob, eob1);
+ }
+
+ // 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);
+#if CONFIG_VP9_HIGHBITDEPTH
+ _mm256_store_si256((__m256i *)(qcoeff_ptr + index + 8), big_zero);
+ _mm256_store_si256((__m256i *)(dqcoeff_ptr + index + 8), big_zero);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+ continue;
+ }
+
+ qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+ qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+
+ qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
+ qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+ qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
+ qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
+
+ qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
+ qcoeff1 = _mm_mulhi_epi16(qtmp1, 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);
+
+ coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+ coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+ store_tran_low(coeff0, dqcoeff_ptr + index);
+ store_tran_low(coeff1, dqcoeff_ptr + index + 8);
+
+ zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
+ zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
+ iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + index));
+ iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + index + 8));
+ iscan0 = _mm_sub_epi16(iscan0, cmp_mask0);
+ iscan1 = _mm_sub_epi16(iscan1, cmp_mask1);
+ eob0 = _mm_andnot_si128(zero_coeff0, iscan0);
+ eob1 = _mm_andnot_si128(zero_coeff1, iscan1);
+ eob0 = _mm_max_epi16(eob0, eob1);
+ eob = _mm_max_epi16(eob, eob0);
+ }
+
+ // Accumulate eob.
+ {
+ __m128i eob_shuffled;
+ eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
+ eob = _mm_max_epi16(eob, eob_shuffled);
+ *eob_ptr = _mm_extract_epi16(eob, 1);
+ }
+}
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