Line data Source code
1 : /*
2 : * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
3 : *
4 : * Use of this source code is governed by a BSD-style license
5 : * that can be found in the LICENSE file in the root of the source
6 : * tree. An additional intellectual property rights grant can be found
7 : * in the file PATENTS. All contributing project authors may
8 : * be found in the AUTHORS file in the root of the source tree.
9 : */
10 :
11 : #include <assert.h>
12 : #include <tmmintrin.h> // SSSE3
13 :
14 : #include "./vp9_rtcd.h"
15 : #include "./vpx_config.h"
16 : #include "vpx_dsp/vpx_dsp_common.h"
17 : #include "vpx_dsp/x86/fdct.h"
18 : #include "vpx_dsp/x86/inv_txfm_sse2.h"
19 : #include "vpx_dsp/x86/txfm_common_sse2.h"
20 :
21 0 : void vp9_fdct8x8_quant_ssse3(
22 : const int16_t *input, int stride, tran_low_t *coeff_ptr, intptr_t n_coeffs,
23 : int skip_block, const int16_t *zbin_ptr, const int16_t *round_ptr,
24 : const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
25 : tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr,
26 : uint16_t *eob_ptr, const int16_t *scan_ptr, const int16_t *iscan_ptr) {
27 : __m128i zero;
28 : int pass;
29 : // Constants
30 : // When we use them, in one case, they are all the same. In all others
31 : // it's a pair of them that we need to repeat four times. This is done
32 : // by constructing the 32 bit constant corresponding to that pair.
33 0 : const __m128i k__dual_p16_p16 = dual_set_epi16(23170, 23170);
34 0 : const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
35 0 : const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
36 0 : const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
37 0 : const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
38 0 : const __m128i k__cospi_p28_p04 = pair_set_epi16(cospi_28_64, cospi_4_64);
39 0 : const __m128i k__cospi_m04_p28 = pair_set_epi16(-cospi_4_64, cospi_28_64);
40 0 : const __m128i k__cospi_p12_p20 = pair_set_epi16(cospi_12_64, cospi_20_64);
41 0 : const __m128i k__cospi_m20_p12 = pair_set_epi16(-cospi_20_64, cospi_12_64);
42 0 : const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
43 : // Load input
44 0 : __m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
45 0 : __m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
46 0 : __m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
47 0 : __m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
48 0 : __m128i in4 = _mm_load_si128((const __m128i *)(input + 4 * stride));
49 0 : __m128i in5 = _mm_load_si128((const __m128i *)(input + 5 * stride));
50 0 : __m128i in6 = _mm_load_si128((const __m128i *)(input + 6 * stride));
51 0 : __m128i in7 = _mm_load_si128((const __m128i *)(input + 7 * stride));
52 : __m128i *in[8];
53 0 : int index = 0;
54 :
55 : (void)scan_ptr;
56 : (void)zbin_ptr;
57 : (void)quant_shift_ptr;
58 : (void)coeff_ptr;
59 :
60 : // Pre-condition input (shift by two)
61 0 : in0 = _mm_slli_epi16(in0, 2);
62 0 : in1 = _mm_slli_epi16(in1, 2);
63 0 : in2 = _mm_slli_epi16(in2, 2);
64 0 : in3 = _mm_slli_epi16(in3, 2);
65 0 : in4 = _mm_slli_epi16(in4, 2);
66 0 : in5 = _mm_slli_epi16(in5, 2);
67 0 : in6 = _mm_slli_epi16(in6, 2);
68 0 : in7 = _mm_slli_epi16(in7, 2);
69 :
70 0 : in[0] = &in0;
71 0 : in[1] = &in1;
72 0 : in[2] = &in2;
73 0 : in[3] = &in3;
74 0 : in[4] = &in4;
75 0 : in[5] = &in5;
76 0 : in[6] = &in6;
77 0 : in[7] = &in7;
78 :
79 : // We do two passes, first the columns, then the rows. The results of the
80 : // first pass are transposed so that the same column code can be reused. The
81 : // results of the second pass are also transposed so that the rows (processed
82 : // as columns) are put back in row positions.
83 0 : for (pass = 0; pass < 2; pass++) {
84 : // To store results of each pass before the transpose.
85 : __m128i res0, res1, res2, res3, res4, res5, res6, res7;
86 : // Add/subtract
87 0 : const __m128i q0 = _mm_add_epi16(in0, in7);
88 0 : const __m128i q1 = _mm_add_epi16(in1, in6);
89 0 : const __m128i q2 = _mm_add_epi16(in2, in5);
90 0 : const __m128i q3 = _mm_add_epi16(in3, in4);
91 0 : const __m128i q4 = _mm_sub_epi16(in3, in4);
92 0 : const __m128i q5 = _mm_sub_epi16(in2, in5);
93 0 : const __m128i q6 = _mm_sub_epi16(in1, in6);
94 0 : const __m128i q7 = _mm_sub_epi16(in0, in7);
95 : // Work on first four results
96 : {
97 : // Add/subtract
98 0 : const __m128i r0 = _mm_add_epi16(q0, q3);
99 0 : const __m128i r1 = _mm_add_epi16(q1, q2);
100 0 : const __m128i r2 = _mm_sub_epi16(q1, q2);
101 0 : const __m128i r3 = _mm_sub_epi16(q0, q3);
102 : // Interleave to do the multiply by constants which gets us into 32bits
103 0 : const __m128i t0 = _mm_unpacklo_epi16(r0, r1);
104 0 : const __m128i t1 = _mm_unpackhi_epi16(r0, r1);
105 0 : const __m128i t2 = _mm_unpacklo_epi16(r2, r3);
106 0 : const __m128i t3 = _mm_unpackhi_epi16(r2, r3);
107 :
108 0 : const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p16_p16);
109 0 : const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p16_p16);
110 0 : const __m128i u2 = _mm_madd_epi16(t0, k__cospi_p16_m16);
111 0 : const __m128i u3 = _mm_madd_epi16(t1, k__cospi_p16_m16);
112 :
113 0 : const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p24_p08);
114 0 : const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p24_p08);
115 0 : const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m08_p24);
116 0 : const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m08_p24);
117 : // dct_const_round_shift
118 :
119 0 : const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING);
120 0 : const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING);
121 0 : const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING);
122 0 : const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING);
123 :
124 0 : const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING);
125 0 : const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING);
126 0 : const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING);
127 0 : const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING);
128 :
129 0 : const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
130 0 : const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
131 0 : const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
132 0 : const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
133 :
134 0 : const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
135 0 : const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
136 0 : const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
137 0 : const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
138 : // Combine
139 :
140 0 : res0 = _mm_packs_epi32(w0, w1);
141 0 : res4 = _mm_packs_epi32(w2, w3);
142 0 : res2 = _mm_packs_epi32(w4, w5);
143 0 : res6 = _mm_packs_epi32(w6, w7);
144 : }
145 : // Work on next four results
146 : {
147 : // Interleave to do the multiply by constants which gets us into 32bits
148 0 : const __m128i d0 = _mm_sub_epi16(q6, q5);
149 0 : const __m128i d1 = _mm_add_epi16(q6, q5);
150 0 : const __m128i r0 = _mm_mulhrs_epi16(d0, k__dual_p16_p16);
151 0 : const __m128i r1 = _mm_mulhrs_epi16(d1, k__dual_p16_p16);
152 :
153 : // Add/subtract
154 0 : const __m128i x0 = _mm_add_epi16(q4, r0);
155 0 : const __m128i x1 = _mm_sub_epi16(q4, r0);
156 0 : const __m128i x2 = _mm_sub_epi16(q7, r1);
157 0 : const __m128i x3 = _mm_add_epi16(q7, r1);
158 : // Interleave to do the multiply by constants which gets us into 32bits
159 0 : const __m128i t0 = _mm_unpacklo_epi16(x0, x3);
160 0 : const __m128i t1 = _mm_unpackhi_epi16(x0, x3);
161 0 : const __m128i t2 = _mm_unpacklo_epi16(x1, x2);
162 0 : const __m128i t3 = _mm_unpackhi_epi16(x1, x2);
163 0 : const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p28_p04);
164 0 : const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p28_p04);
165 0 : const __m128i u2 = _mm_madd_epi16(t0, k__cospi_m04_p28);
166 0 : const __m128i u3 = _mm_madd_epi16(t1, k__cospi_m04_p28);
167 0 : const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p12_p20);
168 0 : const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p12_p20);
169 0 : const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m20_p12);
170 0 : const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m20_p12);
171 : // dct_const_round_shift
172 0 : const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING);
173 0 : const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING);
174 0 : const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING);
175 0 : const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING);
176 0 : const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING);
177 0 : const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING);
178 0 : const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING);
179 0 : const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING);
180 0 : const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
181 0 : const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
182 0 : const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
183 0 : const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
184 0 : const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
185 0 : const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
186 0 : const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
187 0 : const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
188 : // Combine
189 0 : res1 = _mm_packs_epi32(w0, w1);
190 0 : res7 = _mm_packs_epi32(w2, w3);
191 0 : res5 = _mm_packs_epi32(w4, w5);
192 0 : res3 = _mm_packs_epi32(w6, w7);
193 : }
194 : // Transpose the 8x8.
195 : {
196 : // 00 01 02 03 04 05 06 07
197 : // 10 11 12 13 14 15 16 17
198 : // 20 21 22 23 24 25 26 27
199 : // 30 31 32 33 34 35 36 37
200 : // 40 41 42 43 44 45 46 47
201 : // 50 51 52 53 54 55 56 57
202 : // 60 61 62 63 64 65 66 67
203 : // 70 71 72 73 74 75 76 77
204 0 : const __m128i tr0_0 = _mm_unpacklo_epi16(res0, res1);
205 0 : const __m128i tr0_1 = _mm_unpacklo_epi16(res2, res3);
206 0 : const __m128i tr0_2 = _mm_unpackhi_epi16(res0, res1);
207 0 : const __m128i tr0_3 = _mm_unpackhi_epi16(res2, res3);
208 0 : const __m128i tr0_4 = _mm_unpacklo_epi16(res4, res5);
209 0 : const __m128i tr0_5 = _mm_unpacklo_epi16(res6, res7);
210 0 : const __m128i tr0_6 = _mm_unpackhi_epi16(res4, res5);
211 0 : const __m128i tr0_7 = _mm_unpackhi_epi16(res6, res7);
212 : // 00 10 01 11 02 12 03 13
213 : // 20 30 21 31 22 32 23 33
214 : // 04 14 05 15 06 16 07 17
215 : // 24 34 25 35 26 36 27 37
216 : // 40 50 41 51 42 52 43 53
217 : // 60 70 61 71 62 72 63 73
218 : // 54 54 55 55 56 56 57 57
219 : // 64 74 65 75 66 76 67 77
220 0 : const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
221 0 : const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3);
222 0 : const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1);
223 0 : const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3);
224 0 : const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5);
225 0 : const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7);
226 0 : const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5);
227 0 : const __m128i tr1_7 = _mm_unpackhi_epi32(tr0_6, tr0_7);
228 : // 00 10 20 30 01 11 21 31
229 : // 40 50 60 70 41 51 61 71
230 : // 02 12 22 32 03 13 23 33
231 : // 42 52 62 72 43 53 63 73
232 : // 04 14 24 34 05 15 21 36
233 : // 44 54 64 74 45 55 61 76
234 : // 06 16 26 36 07 17 27 37
235 : // 46 56 66 76 47 57 67 77
236 0 : in0 = _mm_unpacklo_epi64(tr1_0, tr1_4);
237 0 : in1 = _mm_unpackhi_epi64(tr1_0, tr1_4);
238 0 : in2 = _mm_unpacklo_epi64(tr1_2, tr1_6);
239 0 : in3 = _mm_unpackhi_epi64(tr1_2, tr1_6);
240 0 : in4 = _mm_unpacklo_epi64(tr1_1, tr1_5);
241 0 : in5 = _mm_unpackhi_epi64(tr1_1, tr1_5);
242 0 : in6 = _mm_unpacklo_epi64(tr1_3, tr1_7);
243 0 : in7 = _mm_unpackhi_epi64(tr1_3, tr1_7);
244 : // 00 10 20 30 40 50 60 70
245 : // 01 11 21 31 41 51 61 71
246 : // 02 12 22 32 42 52 62 72
247 : // 03 13 23 33 43 53 63 73
248 : // 04 14 24 34 44 54 64 74
249 : // 05 15 25 35 45 55 65 75
250 : // 06 16 26 36 46 56 66 76
251 : // 07 17 27 37 47 57 67 77
252 : }
253 : }
254 : // Post-condition output and store it
255 : {
256 : // Post-condition (division by two)
257 : // division of two 16 bits signed numbers using shifts
258 : // n / 2 = (n - (n >> 15)) >> 1
259 0 : const __m128i sign_in0 = _mm_srai_epi16(in0, 15);
260 0 : const __m128i sign_in1 = _mm_srai_epi16(in1, 15);
261 0 : const __m128i sign_in2 = _mm_srai_epi16(in2, 15);
262 0 : const __m128i sign_in3 = _mm_srai_epi16(in3, 15);
263 0 : const __m128i sign_in4 = _mm_srai_epi16(in4, 15);
264 0 : const __m128i sign_in5 = _mm_srai_epi16(in5, 15);
265 0 : const __m128i sign_in6 = _mm_srai_epi16(in6, 15);
266 0 : const __m128i sign_in7 = _mm_srai_epi16(in7, 15);
267 0 : in0 = _mm_sub_epi16(in0, sign_in0);
268 0 : in1 = _mm_sub_epi16(in1, sign_in1);
269 0 : in2 = _mm_sub_epi16(in2, sign_in2);
270 0 : in3 = _mm_sub_epi16(in3, sign_in3);
271 0 : in4 = _mm_sub_epi16(in4, sign_in4);
272 0 : in5 = _mm_sub_epi16(in5, sign_in5);
273 0 : in6 = _mm_sub_epi16(in6, sign_in6);
274 0 : in7 = _mm_sub_epi16(in7, sign_in7);
275 0 : in0 = _mm_srai_epi16(in0, 1);
276 0 : in1 = _mm_srai_epi16(in1, 1);
277 0 : in2 = _mm_srai_epi16(in2, 1);
278 0 : in3 = _mm_srai_epi16(in3, 1);
279 0 : in4 = _mm_srai_epi16(in4, 1);
280 0 : in5 = _mm_srai_epi16(in5, 1);
281 0 : in6 = _mm_srai_epi16(in6, 1);
282 0 : in7 = _mm_srai_epi16(in7, 1);
283 : }
284 :
285 0 : iscan_ptr += n_coeffs;
286 0 : qcoeff_ptr += n_coeffs;
287 0 : dqcoeff_ptr += n_coeffs;
288 0 : n_coeffs = -n_coeffs;
289 0 : zero = _mm_setzero_si128();
290 :
291 0 : if (!skip_block) {
292 : __m128i eob;
293 : __m128i round, quant, dequant, thr;
294 : int16_t nzflag;
295 : {
296 : __m128i coeff0, coeff1;
297 :
298 : // Setup global values
299 : {
300 0 : round = _mm_load_si128((const __m128i *)round_ptr);
301 0 : quant = _mm_load_si128((const __m128i *)quant_ptr);
302 0 : dequant = _mm_load_si128((const __m128i *)dequant_ptr);
303 : }
304 :
305 : {
306 : __m128i coeff0_sign, coeff1_sign;
307 : __m128i qcoeff0, qcoeff1;
308 : __m128i qtmp0, qtmp1;
309 : // Do DC and first 15 AC
310 0 : coeff0 = *in[0];
311 0 : coeff1 = *in[1];
312 :
313 : // Poor man's sign extract
314 0 : coeff0_sign = _mm_srai_epi16(coeff0, 15);
315 0 : coeff1_sign = _mm_srai_epi16(coeff1, 15);
316 0 : qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
317 0 : qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
318 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
319 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
320 :
321 0 : qcoeff0 = _mm_adds_epi16(qcoeff0, round);
322 0 : round = _mm_unpackhi_epi64(round, round);
323 0 : qcoeff1 = _mm_adds_epi16(qcoeff1, round);
324 0 : qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
325 0 : quant = _mm_unpackhi_epi64(quant, quant);
326 0 : qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
327 :
328 : // Reinsert signs
329 0 : qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
330 0 : qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign);
331 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
332 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
333 :
334 0 : store_tran_low(qcoeff0, qcoeff_ptr + n_coeffs);
335 0 : store_tran_low(qcoeff1, qcoeff_ptr + n_coeffs + 8);
336 :
337 0 : coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
338 0 : dequant = _mm_unpackhi_epi64(dequant, dequant);
339 0 : coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
340 :
341 0 : store_tran_low(coeff0, dqcoeff_ptr + n_coeffs);
342 0 : store_tran_low(coeff1, dqcoeff_ptr + n_coeffs + 8);
343 : }
344 :
345 : {
346 : // Scan for eob
347 : __m128i zero_coeff0, zero_coeff1;
348 : __m128i nzero_coeff0, nzero_coeff1;
349 : __m128i iscan0, iscan1;
350 : __m128i eob1;
351 0 : zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
352 0 : zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
353 0 : nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
354 0 : nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
355 0 : iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
356 0 : iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
357 : // Add one to convert from indices to counts
358 0 : iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
359 0 : iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
360 0 : eob = _mm_and_si128(iscan0, nzero_coeff0);
361 0 : eob1 = _mm_and_si128(iscan1, nzero_coeff1);
362 0 : eob = _mm_max_epi16(eob, eob1);
363 : }
364 0 : n_coeffs += 8 * 2;
365 : }
366 :
367 : // AC only loop
368 0 : index = 2;
369 0 : thr = _mm_srai_epi16(dequant, 1);
370 0 : while (n_coeffs < 0) {
371 : __m128i coeff0, coeff1;
372 : {
373 : __m128i coeff0_sign, coeff1_sign;
374 : __m128i qcoeff0, qcoeff1;
375 : __m128i qtmp0, qtmp1;
376 :
377 0 : assert(index < (int)(sizeof(in) / sizeof(in[0])) - 1);
378 0 : coeff0 = *in[index];
379 0 : coeff1 = *in[index + 1];
380 :
381 : // Poor man's sign extract
382 0 : coeff0_sign = _mm_srai_epi16(coeff0, 15);
383 0 : coeff1_sign = _mm_srai_epi16(coeff1, 15);
384 0 : qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign);
385 0 : qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign);
386 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
387 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
388 :
389 0 : nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) |
390 0 : _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr));
391 :
392 0 : if (nzflag) {
393 0 : qcoeff0 = _mm_adds_epi16(qcoeff0, round);
394 0 : qcoeff1 = _mm_adds_epi16(qcoeff1, round);
395 0 : qtmp0 = _mm_mulhi_epi16(qcoeff0, quant);
396 0 : qtmp1 = _mm_mulhi_epi16(qcoeff1, quant);
397 :
398 : // Reinsert signs
399 0 : qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign);
400 0 : qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign);
401 0 : qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign);
402 0 : qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign);
403 :
404 0 : store_tran_low(qcoeff0, qcoeff_ptr + n_coeffs);
405 0 : store_tran_low(qcoeff1, qcoeff_ptr + n_coeffs + 8);
406 :
407 0 : coeff0 = _mm_mullo_epi16(qcoeff0, dequant);
408 0 : coeff1 = _mm_mullo_epi16(qcoeff1, dequant);
409 :
410 0 : store_tran_low(coeff0, dqcoeff_ptr + n_coeffs);
411 0 : store_tran_low(coeff1, dqcoeff_ptr + n_coeffs + 8);
412 : } else {
413 : // Maybe a more efficient way to store 0?
414 0 : store_zero_tran_low(qcoeff_ptr + n_coeffs);
415 0 : store_zero_tran_low(qcoeff_ptr + n_coeffs + 8);
416 :
417 0 : store_zero_tran_low(dqcoeff_ptr + n_coeffs);
418 0 : store_zero_tran_low(dqcoeff_ptr + n_coeffs + 8);
419 : }
420 : }
421 :
422 0 : if (nzflag) {
423 : // Scan for eob
424 : __m128i zero_coeff0, zero_coeff1;
425 : __m128i nzero_coeff0, nzero_coeff1;
426 : __m128i iscan0, iscan1;
427 : __m128i eob0, eob1;
428 0 : zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero);
429 0 : zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero);
430 0 : nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero);
431 0 : nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero);
432 0 : iscan0 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs));
433 0 : iscan1 = _mm_load_si128((const __m128i *)(iscan_ptr + n_coeffs) + 1);
434 : // Add one to convert from indices to counts
435 0 : iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0);
436 0 : iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1);
437 0 : eob0 = _mm_and_si128(iscan0, nzero_coeff0);
438 0 : eob1 = _mm_and_si128(iscan1, nzero_coeff1);
439 0 : eob0 = _mm_max_epi16(eob0, eob1);
440 0 : eob = _mm_max_epi16(eob, eob0);
441 : }
442 0 : n_coeffs += 8 * 2;
443 0 : index += 2;
444 : }
445 :
446 : // Accumulate EOB
447 : {
448 : __m128i eob_shuffled;
449 0 : eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
450 0 : eob = _mm_max_epi16(eob, eob_shuffled);
451 0 : eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
452 0 : eob = _mm_max_epi16(eob, eob_shuffled);
453 0 : eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
454 0 : eob = _mm_max_epi16(eob, eob_shuffled);
455 0 : *eob_ptr = _mm_extract_epi16(eob, 1);
456 : }
457 : } else {
458 : do {
459 0 : store_zero_tran_low(dqcoeff_ptr + n_coeffs);
460 0 : store_zero_tran_low(dqcoeff_ptr + n_coeffs + 8);
461 0 : store_zero_tran_low(qcoeff_ptr + n_coeffs);
462 0 : store_zero_tran_low(qcoeff_ptr + n_coeffs + 8);
463 0 : n_coeffs += 8 * 2;
464 0 : } while (n_coeffs < 0);
465 0 : *eob_ptr = 0;
466 : }
467 0 : }
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