Line data Source code
1 : /*
2 : * Copyright (c) 2016, 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 <emmintrin.h>
13 : #include <xmmintrin.h>
14 :
15 : #include "./aom_dsp_rtcd.h"
16 : #include "aom/aom_integer.h"
17 :
18 0 : static INLINE __m128i load_coefficients(const tran_low_t *coeff_ptr) {
19 : #if CONFIG_HIGHBITDEPTH
20 0 : return _mm_setr_epi16((int16_t)coeff_ptr[0], (int16_t)coeff_ptr[1],
21 0 : (int16_t)coeff_ptr[2], (int16_t)coeff_ptr[3],
22 0 : (int16_t)coeff_ptr[4], (int16_t)coeff_ptr[5],
23 0 : (int16_t)coeff_ptr[6], (int16_t)coeff_ptr[7]);
24 : #else
25 : return _mm_load_si128((const __m128i *)coeff_ptr);
26 : #endif
27 : }
28 :
29 0 : static INLINE void store_coefficients(__m128i coeff_vals,
30 : tran_low_t *coeff_ptr) {
31 : #if CONFIG_HIGHBITDEPTH
32 0 : __m128i one = _mm_set1_epi16(1);
33 0 : __m128i coeff_vals_hi = _mm_mulhi_epi16(coeff_vals, one);
34 0 : __m128i coeff_vals_lo = _mm_mullo_epi16(coeff_vals, one);
35 0 : __m128i coeff_vals_1 = _mm_unpacklo_epi16(coeff_vals_lo, coeff_vals_hi);
36 0 : __m128i coeff_vals_2 = _mm_unpackhi_epi16(coeff_vals_lo, coeff_vals_hi);
37 : _mm_store_si128((__m128i *)(coeff_ptr), coeff_vals_1);
38 0 : _mm_store_si128((__m128i *)(coeff_ptr + 4), coeff_vals_2);
39 : #else
40 : _mm_store_si128((__m128i *)(coeff_ptr), coeff_vals);
41 : #endif
42 0 : }
43 :
44 0 : void aom_quantize_b_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
45 : int skip_block, const int16_t *zbin_ptr,
46 : const int16_t *round_ptr, const int16_t *quant_ptr,
47 : const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
48 : tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr,
49 : uint16_t *eob_ptr, const int16_t *scan_ptr,
50 : const int16_t *iscan_ptr) {
51 : __m128i zero;
52 : (void)scan_ptr;
53 :
54 0 : coeff_ptr += n_coeffs;
55 0 : iscan_ptr += n_coeffs;
56 0 : qcoeff_ptr += n_coeffs;
57 0 : dqcoeff_ptr += n_coeffs;
58 0 : n_coeffs = -n_coeffs;
59 0 : zero = _mm_setzero_si128();
60 0 : if (!skip_block) {
61 : __m128i eob;
62 : __m128i zbin;
63 : __m128i round, quant, dequant, shift;
64 : {
65 : __m128i coeff0, coeff1;
66 :
67 : // Setup global values
68 : {
69 : __m128i pw_1;
70 0 : zbin = _mm_load_si128((const __m128i *)zbin_ptr);
71 0 : round = _mm_load_si128((const __m128i *)round_ptr);
72 0 : quant = _mm_load_si128((const __m128i *)quant_ptr);
73 0 : pw_1 = _mm_set1_epi16(1);
74 0 : zbin = _mm_sub_epi16(zbin, pw_1);
75 0 : dequant = _mm_load_si128((const __m128i *)dequant_ptr);
76 0 : shift = _mm_load_si128((const __m128i *)quant_shift_ptr);
77 : }
78 :
79 : {
80 : __m128i coeff0_sign, coeff1_sign;
81 : __m128i qcoeff0, qcoeff1;
82 : __m128i qtmp0, qtmp1;
83 : __m128i cmp_mask0, cmp_mask1;
84 : // Do DC and first 15 AC
85 0 : coeff0 = load_coefficients(coeff_ptr + n_coeffs);
86 0 : coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8);
87 :
88 : // Poor man's sign extract
89 0 : coeff0_sign = _mm_srai_epi16(coeff0, 15);
90 0 : coeff1_sign = _mm_srai_epi16(coeff1, 15);
91 0 : qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
92 0 : qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
93 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
94 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
95 :
96 0 : cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
97 0 : zbin = _mm_unpackhi_epi64(zbin, zbin); // Switch DC to AC
98 0 : cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
99 0 : qcoeff0 = _mm_adds_epi16(qcoeff0, round);
100 0 : round = _mm_unpackhi_epi64(round, round);
101 0 : qcoeff1 = _mm_adds_epi16(qcoeff1, round);
102 0 : qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
103 0 : quant = _mm_unpackhi_epi64(quant, quant);
104 0 : qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
105 0 : qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
106 0 : qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
107 0 : qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
108 0 : shift = _mm_unpackhi_epi64(shift, shift);
109 0 : qcoeff1 = _mm_mulhi_epi16(qtmp1, shift);
110 :
111 : // Reinsert signs
112 0 : qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign);
113 0 : qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign);
114 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
115 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
116 :
117 : // Mask out zbin threshold coeffs
118 0 : qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
119 0 : qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
120 :
121 0 : store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs);
122 0 : store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8);
123 :
124 0 : coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
125 0 : dequant = _mm_unpackhi_epi64(dequant, dequant);
126 0 : coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
127 :
128 0 : store_coefficients(coeff0, dqcoeff_ptr + n_coeffs);
129 0 : store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8);
130 : }
131 :
132 : {
133 : // Scan for eob
134 : __m128i zero_coeff0, zero_coeff1;
135 : __m128i nzero_coeff0, nzero_coeff1;
136 : __m128i iscan0, iscan1;
137 : __m128i eob1;
138 0 : zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
139 0 : zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
140 0 : nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
141 0 : nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
142 0 : iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
143 0 : iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
144 : // Add one to convert from indices to counts
145 0 : iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
146 0 : iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
147 0 : eob = _mm_and_si128(iscan0, nzero_coeff0);
148 0 : eob1 = _mm_and_si128(iscan1, nzero_coeff1);
149 0 : eob = _mm_max_epi16(eob, eob1);
150 : }
151 0 : n_coeffs += 8 * 2;
152 : }
153 :
154 : // AC only loop
155 0 : while (n_coeffs < 0) {
156 : __m128i coeff0, coeff1;
157 : {
158 : __m128i coeff0_sign, coeff1_sign;
159 : __m128i qcoeff0, qcoeff1;
160 : __m128i qtmp0, qtmp1;
161 : __m128i cmp_mask0, cmp_mask1;
162 :
163 0 : coeff0 = load_coefficients(coeff_ptr + n_coeffs);
164 0 : coeff1 = load_coefficients(coeff_ptr + n_coeffs + 8);
165 :
166 : // Poor man's sign extract
167 0 : coeff0_sign = _mm_srai_epi16(coeff0, 15);
168 0 : coeff1_sign = _mm_srai_epi16(coeff1, 15);
169 0 : qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
170 0 : qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
171 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
172 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
173 :
174 0 : cmp_mask0 = _mm_cmpgt_epi16(qcoeff0, zbin);
175 0 : cmp_mask1 = _mm_cmpgt_epi16(qcoeff1, zbin);
176 0 : qcoeff0 = _mm_adds_epi16(qcoeff0, round);
177 0 : qcoeff1 = _mm_adds_epi16(qcoeff1, round);
178 0 : qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
179 0 : qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
180 0 : qtmp0 = _mm_add_epi16(qtmp0, qcoeff0);
181 0 : qtmp1 = _mm_add_epi16(qtmp1, qcoeff1);
182 0 : qcoeff0 = _mm_mulhi_epi16(qtmp0, shift);
183 0 : qcoeff1 = _mm_mulhi_epi16(qtmp1, shift);
184 :
185 : // Reinsert signs
186 0 : qcoeff0 = _mm_xor_si128(qcoeff0, coeff0_sign);
187 0 : qcoeff1 = _mm_xor_si128(qcoeff1, coeff1_sign);
188 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
189 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
190 :
191 : // Mask out zbin threshold coeffs
192 0 : qcoeff0 = _mm_and_si128(qcoeff0, cmp_mask0);
193 0 : qcoeff1 = _mm_and_si128(qcoeff1, cmp_mask1);
194 :
195 0 : store_coefficients(qcoeff0, qcoeff_ptr + n_coeffs);
196 0 : store_coefficients(qcoeff1, qcoeff_ptr + n_coeffs + 8);
197 :
198 0 : coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
199 0 : coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
200 :
201 0 : store_coefficients(coeff0, dqcoeff_ptr + n_coeffs);
202 0 : store_coefficients(coeff1, dqcoeff_ptr + n_coeffs + 8);
203 : }
204 :
205 : {
206 : // Scan for eob
207 : __m128i zero_coeff0, zero_coeff1;
208 : __m128i nzero_coeff0, nzero_coeff1;
209 : __m128i iscan0, iscan1;
210 : __m128i eob0, eob1;
211 0 : zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
212 0 : zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
213 0 : nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
214 0 : nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
215 0 : iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
216 0 : iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
217 : // Add one to convert from indices to counts
218 0 : iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
219 0 : iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
220 0 : eob0 = _mm_and_si128(iscan0, nzero_coeff0);
221 0 : eob1 = _mm_and_si128(iscan1, nzero_coeff1);
222 0 : eob0 = _mm_max_epi16(eob0, eob1);
223 0 : eob = _mm_max_epi16(eob, eob0);
224 : }
225 0 : n_coeffs += 8 * 2;
226 : }
227 :
228 : // Accumulate EOB
229 : {
230 : __m128i eob_shuffled;
231 0 : eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
232 0 : eob = _mm_max_epi16(eob, eob_shuffled);
233 0 : eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
234 0 : eob = _mm_max_epi16(eob, eob_shuffled);
235 0 : eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
236 0 : eob = _mm_max_epi16(eob, eob_shuffled);
237 0 : *eob_ptr = _mm_extract_epi16(eob, 1);
238 : }
239 : } else {
240 : do {
241 0 : store_coefficients(zero, dqcoeff_ptr + n_coeffs);
242 0 : store_coefficients(zero, dqcoeff_ptr + n_coeffs + 8);
243 0 : store_coefficients(zero, qcoeff_ptr + n_coeffs);
244 0 : store_coefficients(zero, qcoeff_ptr + n_coeffs + 8);
245 0 : n_coeffs += 8 * 2;
246 0 : } while (n_coeffs < 0);
247 0 : *eob_ptr = 0;
248 : }
249 0 : }
|
