| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #include <immintrin.h> |
| |
| #include "config/av1_rtcd.h" |
| |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/aom_dsp_common.h" |
| |
| static INLINE void update_qp(__m256i *qp) { |
| qp[0] = _mm256_permute2x128_si256(qp[0], qp[0], 0x11); |
| qp[1] = _mm256_permute2x128_si256(qp[1], qp[1], 0x11); |
| qp[2] = _mm256_permute2x128_si256(qp[2], qp[2], 0x11); |
| } |
| |
| static INLINE void init_qp(const int32_t *round_ptr, const int32_t *quant_ptr, |
| const int32_t *dequant_ptr, int log_scale, |
| __m256i *qp) { |
| const int round1 = ROUND_POWER_OF_TWO(round_ptr[1], log_scale); |
| const int round0 = ROUND_POWER_OF_TWO(round_ptr[0], log_scale); |
| qp[0] = _mm256_set_epi32(round1, round1, round1, round1, round1, round1, |
| round1, round0); |
| |
| const int quant1 = quant_ptr[1]; |
| const int quant0 = quant_ptr[0]; |
| qp[1] = _mm256_set_epi32(quant1, quant1, quant1, quant1, quant1, quant1, |
| quant1, quant0); |
| |
| const int dequant1 = dequant_ptr[1]; |
| const int dequant0 = dequant_ptr[0]; |
| qp[2] = _mm256_set_epi32(dequant1, dequant1, dequant1, dequant1, dequant1, |
| dequant1, dequant1, dequant0); |
| } |
| |
| static INLINE void quantize(const __m256i *qp, __m256i *c, |
| const int16_t *iscan_ptr, int log_scale, |
| tran_low_t *qcoeff, tran_low_t *dqcoeff, |
| __m256i *eob) { |
| const __m256i abs_coeff = _mm256_abs_epi32(*c); |
| const __m256i round = _mm256_set1_epi32((1 << QUANT_TABLE_BITS) >> 1); |
| __m256i q = _mm256_add_epi32(abs_coeff, qp[0]); |
| __m256i q_lo = _mm256_mul_epi32(q, qp[1]); |
| __m256i q_hi = _mm256_srli_epi64(q, 32); |
| const __m256i qp_hi = _mm256_srli_epi64(qp[1], 32); |
| q_hi = _mm256_mul_epi32(q_hi, qp_hi); |
| q_lo = _mm256_srli_epi64(q_lo, 16 - log_scale + QUANT_FP_BITS); |
| q_hi = _mm256_srli_epi64(q_hi, 16 - log_scale + QUANT_FP_BITS); |
| log_scale += QUANT_TABLE_BITS; |
| |
| q_hi = _mm256_slli_epi64(q_hi, 32); |
| q = _mm256_or_si256(q_lo, q_hi); |
| const __m256i abs_s = _mm256_slli_epi32(abs_coeff, 1 + log_scale); |
| const __m256i mask = _mm256_cmpgt_epi32(qp[2], abs_s); |
| q = _mm256_andnot_si256(mask, q); |
| |
| __m256i dq = _mm256_mullo_epi32(q, qp[2]); |
| dq = _mm256_add_epi64(dq, round); |
| dq = _mm256_srai_epi32(dq, log_scale); |
| q = _mm256_sign_epi32(q, *c); |
| dq = _mm256_sign_epi32(dq, *c); |
| |
| _mm256_storeu_si256((__m256i *)qcoeff, q); |
| _mm256_storeu_si256((__m256i *)dqcoeff, dq); |
| |
| const __m128i isc = _mm_loadu_si128((const __m128i *)iscan_ptr); |
| const __m128i zr = _mm_setzero_si128(); |
| const __m128i lo = _mm_unpacklo_epi16(isc, zr); |
| const __m128i hi = _mm_unpackhi_epi16(isc, zr); |
| const __m256i iscan = |
| _mm256_insertf128_si256(_mm256_castsi128_si256(lo), hi, 1); |
| |
| const __m256i zero = _mm256_setzero_si256(); |
| const __m256i zc = _mm256_cmpeq_epi32(dq, zero); |
| const __m256i nz = _mm256_cmpeq_epi32(zc, zero); |
| __m256i cur_eob = _mm256_sub_epi32(iscan, nz); |
| cur_eob = _mm256_and_si256(cur_eob, nz); |
| *eob = _mm256_max_epi32(cur_eob, *eob); |
| } |
| |
| void av1_highbd_quantize_fp_avx2( |
| const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int32_t *zbin_ptr, |
| const int32_t *round_ptr, const int32_t *quant_ptr, |
| const int32_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, const int32_t *dequant_ptr, uint16_t *eob_ptr, |
| const int16_t *scan, const int16_t *iscan, int log_scale) { |
| (void)scan; |
| (void)zbin_ptr; |
| (void)quant_shift_ptr; |
| const unsigned int step = 8; |
| __m256i qp[3], coeff; |
| |
| init_qp(round_ptr, quant_ptr, dequant_ptr, log_scale, qp); |
| coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); |
| |
| __m256i eob = _mm256_setzero_si256(); |
| quantize(qp, &coeff, iscan, log_scale, qcoeff_ptr, dqcoeff_ptr, &eob); |
| |
| coeff_ptr += step; |
| qcoeff_ptr += step; |
| dqcoeff_ptr += step; |
| iscan += step; |
| n_coeffs -= step; |
| |
| update_qp(qp); |
| while (n_coeffs > 0) { |
| coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); |
| quantize(qp, &coeff, iscan, log_scale, qcoeff_ptr, dqcoeff_ptr, &eob); |
| |
| coeff_ptr += step; |
| qcoeff_ptr += step; |
| dqcoeff_ptr += step; |
| iscan += step; |
| n_coeffs -= step; |
| } |
| { |
| __m256i eob_s; |
| eob_s = _mm256_shuffle_epi32(eob, 0xe); |
| eob = _mm256_max_epi16(eob, eob_s); |
| eob_s = _mm256_shufflelo_epi16(eob, 0xe); |
| eob = _mm256_max_epi16(eob, eob_s); |
| eob_s = _mm256_shufflelo_epi16(eob, 1); |
| eob = _mm256_max_epi16(eob, eob_s); |
| const __m128i final_eob = _mm_max_epi16(_mm256_castsi256_si128(eob), |
| _mm256_extractf128_si256(eob, 1)); |
| *eob_ptr = _mm_extract_epi16(final_eob, 0); |
| } |
| } |