av1_highbd_quantize_avx2.c (5077B)
1 /* 2 * Copyright (c) 2017, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include <immintrin.h> 13 14 #include "config/av1_rtcd.h" 15 16 #include "aom/aom_integer.h" 17 #include "aom_dsp/aom_dsp_common.h" 18 19 static inline void init_one_qp(const __m128i *p, __m256i *qp) { 20 const __m128i zero = _mm_setzero_si128(); 21 const __m128i dc = _mm_unpacklo_epi16(*p, zero); 22 const __m128i ac = _mm_unpackhi_epi16(*p, zero); 23 *qp = _mm256_insertf128_si256(_mm256_castsi128_si256(dc), ac, 1); 24 } 25 26 static inline void update_qp(__m256i *qp) { 27 qp[0] = _mm256_permute2x128_si256(qp[0], qp[0], 0x11); 28 qp[1] = _mm256_permute2x128_si256(qp[1], qp[1], 0x11); 29 qp[2] = _mm256_permute2x128_si256(qp[2], qp[2], 0x11); 30 } 31 32 static inline void init_qp(const int16_t *round_ptr, const int16_t *quant_ptr, 33 const int16_t *dequant_ptr, int log_scale, 34 __m256i *qp) { 35 __m128i round = _mm_loadu_si128((const __m128i *)round_ptr); 36 if (log_scale) { 37 const __m128i round_scale = _mm_set1_epi16(1 << (15 - log_scale)); 38 round = _mm_mulhrs_epi16(round, round_scale); 39 } 40 const __m128i quant = _mm_loadu_si128((const __m128i *)quant_ptr); 41 const __m128i dequant = _mm_loadu_si128((const __m128i *)dequant_ptr); 42 43 init_one_qp(&round, &qp[0]); 44 init_one_qp(&quant, &qp[1]); 45 init_one_qp(&dequant, &qp[2]); 46 } 47 48 static inline void quantize(const __m256i *qp, __m256i *c, 49 const int16_t *iscan_ptr, int log_scale, 50 tran_low_t *qcoeff, tran_low_t *dqcoeff, 51 __m256i *eob) { 52 const __m256i abs_coeff = _mm256_abs_epi32(*c); 53 __m256i q = _mm256_add_epi32(abs_coeff, qp[0]); 54 55 __m256i q_lo = _mm256_mul_epi32(q, qp[1]); 56 __m256i q_hi = _mm256_srli_epi64(q, 32); 57 const __m256i qp_hi = _mm256_srli_epi64(qp[1], 32); 58 q_hi = _mm256_mul_epi32(q_hi, qp_hi); 59 q_lo = _mm256_srli_epi64(q_lo, 16 - log_scale); 60 q_hi = _mm256_srli_epi64(q_hi, 16 - log_scale); 61 q_hi = _mm256_slli_epi64(q_hi, 32); 62 q = _mm256_or_si256(q_lo, q_hi); 63 const __m256i abs_s = _mm256_slli_epi32(abs_coeff, 1 + log_scale); 64 const __m256i mask = _mm256_cmpgt_epi32(qp[2], abs_s); 65 q = _mm256_andnot_si256(mask, q); 66 67 __m256i dq = _mm256_mullo_epi32(q, qp[2]); 68 dq = _mm256_srai_epi32(dq, log_scale); 69 q = _mm256_sign_epi32(q, *c); 70 dq = _mm256_sign_epi32(dq, *c); 71 72 _mm256_storeu_si256((__m256i *)qcoeff, q); 73 _mm256_storeu_si256((__m256i *)dqcoeff, dq); 74 75 const __m128i isc = _mm_loadu_si128((const __m128i *)iscan_ptr); 76 const __m128i zr = _mm_setzero_si128(); 77 const __m128i lo = _mm_unpacklo_epi16(isc, zr); 78 const __m128i hi = _mm_unpackhi_epi16(isc, zr); 79 const __m256i iscan = 80 _mm256_insertf128_si256(_mm256_castsi128_si256(lo), hi, 1); 81 82 const __m256i zero = _mm256_setzero_si256(); 83 const __m256i zc = _mm256_cmpeq_epi32(dq, zero); 84 const __m256i nz = _mm256_cmpeq_epi32(zc, zero); 85 __m256i cur_eob = _mm256_sub_epi32(iscan, nz); 86 cur_eob = _mm256_and_si256(cur_eob, nz); 87 *eob = _mm256_max_epi32(cur_eob, *eob); 88 } 89 90 void av1_highbd_quantize_fp_avx2( 91 const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr, 92 const int16_t *round_ptr, const int16_t *quant_ptr, 93 const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, 94 tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, 95 const int16_t *scan, const int16_t *iscan, int log_scale) { 96 (void)scan; 97 (void)zbin_ptr; 98 (void)quant_shift_ptr; 99 const unsigned int step = 8; 100 __m256i qp[3], coeff; 101 102 init_qp(round_ptr, quant_ptr, dequant_ptr, log_scale, qp); 103 coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); 104 105 __m256i eob = _mm256_setzero_si256(); 106 quantize(qp, &coeff, iscan, log_scale, qcoeff_ptr, dqcoeff_ptr, &eob); 107 108 coeff_ptr += step; 109 qcoeff_ptr += step; 110 dqcoeff_ptr += step; 111 iscan += step; 112 n_coeffs -= step; 113 114 update_qp(qp); 115 while (n_coeffs > 0) { 116 coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); 117 quantize(qp, &coeff, iscan, log_scale, qcoeff_ptr, dqcoeff_ptr, &eob); 118 119 coeff_ptr += step; 120 qcoeff_ptr += step; 121 dqcoeff_ptr += step; 122 iscan += step; 123 n_coeffs -= step; 124 } 125 { 126 __m256i eob_s; 127 eob_s = _mm256_shuffle_epi32(eob, 0xe); 128 eob = _mm256_max_epi16(eob, eob_s); 129 eob_s = _mm256_shufflelo_epi16(eob, 0xe); 130 eob = _mm256_max_epi16(eob, eob_s); 131 eob_s = _mm256_shufflelo_epi16(eob, 1); 132 eob = _mm256_max_epi16(eob, eob_s); 133 const __m128i final_eob = _mm_max_epi16(_mm256_castsi256_si128(eob), 134 _mm256_extractf128_si256(eob, 1)); 135 *eob_ptr = _mm_extract_epi16(final_eob, 0); 136 } 137 }