xref: /aosp_15_r20/external/libaom/av1/encoder/x86/highbd_fwd_txfm_avx2.c (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2018, 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 #include <assert.h>
12 #include <immintrin.h> /*AVX2*/
13 
14 #include "config/aom_config.h"
15 #include "config/av1_rtcd.h"
16 #include "av1/common/av1_txfm.h"
17 #include "av1/encoder/av1_fwd_txfm1d_cfg.h"
18 #include "aom_dsp/txfm_common.h"
19 #include "aom_ports/mem.h"
20 #include "aom_dsp/x86/txfm_common_sse2.h"
21 #include "aom_dsp/x86/txfm_common_avx2.h"
22 
load_buffer_8x8_avx2(const int16_t * input,__m256i * out,int stride,int flipud,int fliplr,int shift)23 static inline void load_buffer_8x8_avx2(const int16_t *input, __m256i *out,
24                                         int stride, int flipud, int fliplr,
25                                         int shift) {
26   __m128i out1[8];
27   if (!flipud) {
28     out1[0] = _mm_load_si128((const __m128i *)(input + 0 * stride));
29     out1[1] = _mm_load_si128((const __m128i *)(input + 1 * stride));
30     out1[2] = _mm_load_si128((const __m128i *)(input + 2 * stride));
31     out1[3] = _mm_load_si128((const __m128i *)(input + 3 * stride));
32     out1[4] = _mm_load_si128((const __m128i *)(input + 4 * stride));
33     out1[5] = _mm_load_si128((const __m128i *)(input + 5 * stride));
34     out1[6] = _mm_load_si128((const __m128i *)(input + 6 * stride));
35     out1[7] = _mm_load_si128((const __m128i *)(input + 7 * stride));
36 
37   } else {
38     out1[7] = _mm_load_si128((const __m128i *)(input + 0 * stride));
39     out1[6] = _mm_load_si128((const __m128i *)(input + 1 * stride));
40     out1[5] = _mm_load_si128((const __m128i *)(input + 2 * stride));
41     out1[4] = _mm_load_si128((const __m128i *)(input + 3 * stride));
42     out1[3] = _mm_load_si128((const __m128i *)(input + 4 * stride));
43     out1[2] = _mm_load_si128((const __m128i *)(input + 5 * stride));
44     out1[1] = _mm_load_si128((const __m128i *)(input + 6 * stride));
45     out1[0] = _mm_load_si128((const __m128i *)(input + 7 * stride));
46   }
47   if (!fliplr) {
48     out[0] = _mm256_cvtepi16_epi32(out1[0]);
49     out[1] = _mm256_cvtepi16_epi32(out1[1]);
50     out[2] = _mm256_cvtepi16_epi32(out1[2]);
51     out[3] = _mm256_cvtepi16_epi32(out1[3]);
52     out[4] = _mm256_cvtepi16_epi32(out1[4]);
53     out[5] = _mm256_cvtepi16_epi32(out1[5]);
54     out[6] = _mm256_cvtepi16_epi32(out1[6]);
55     out[7] = _mm256_cvtepi16_epi32(out1[7]);
56 
57   } else {
58     out[0] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[0]));
59     out[1] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[1]));
60     out[2] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[2]));
61     out[3] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[3]));
62     out[4] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[4]));
63     out[5] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[5]));
64     out[6] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[6]));
65     out[7] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[7]));
66   }
67   out[0] = _mm256_slli_epi32(out[0], shift);
68   out[1] = _mm256_slli_epi32(out[1], shift);
69   out[2] = _mm256_slli_epi32(out[2], shift);
70   out[3] = _mm256_slli_epi32(out[3], shift);
71   out[4] = _mm256_slli_epi32(out[4], shift);
72   out[5] = _mm256_slli_epi32(out[5], shift);
73   out[6] = _mm256_slli_epi32(out[6], shift);
74   out[7] = _mm256_slli_epi32(out[7], shift);
75 }
col_txfm_8x8_rounding(__m256i * in,int shift)76 static inline void col_txfm_8x8_rounding(__m256i *in, int shift) {
77   const __m256i rounding = _mm256_set1_epi32(1 << (shift - 1));
78 
79   in[0] = _mm256_add_epi32(in[0], rounding);
80   in[1] = _mm256_add_epi32(in[1], rounding);
81   in[2] = _mm256_add_epi32(in[2], rounding);
82   in[3] = _mm256_add_epi32(in[3], rounding);
83   in[4] = _mm256_add_epi32(in[4], rounding);
84   in[5] = _mm256_add_epi32(in[5], rounding);
85   in[6] = _mm256_add_epi32(in[6], rounding);
86   in[7] = _mm256_add_epi32(in[7], rounding);
87 
88   in[0] = _mm256_srai_epi32(in[0], shift);
89   in[1] = _mm256_srai_epi32(in[1], shift);
90   in[2] = _mm256_srai_epi32(in[2], shift);
91   in[3] = _mm256_srai_epi32(in[3], shift);
92   in[4] = _mm256_srai_epi32(in[4], shift);
93   in[5] = _mm256_srai_epi32(in[5], shift);
94   in[6] = _mm256_srai_epi32(in[6], shift);
95   in[7] = _mm256_srai_epi32(in[7], shift);
96 }
load_buffer_8x16_avx2(const int16_t * input,__m256i * out,int stride,int flipud,int fliplr,int shift)97 static inline void load_buffer_8x16_avx2(const int16_t *input, __m256i *out,
98                                          int stride, int flipud, int fliplr,
99                                          int shift) {
100   const int16_t *topL = input;
101   const int16_t *botL = input + 8 * stride;
102 
103   const int16_t *tmp;
104 
105   if (flipud) {
106     tmp = topL;
107     topL = botL;
108     botL = tmp;
109   }
110   load_buffer_8x8_avx2(topL, out, stride, flipud, fliplr, shift);
111   load_buffer_8x8_avx2(botL, out + 8, stride, flipud, fliplr, shift);
112 }
load_buffer_16xn_avx2(const int16_t * input,__m256i * out,int stride,int height,int outstride,int flipud,int fliplr)113 static inline void load_buffer_16xn_avx2(const int16_t *input, __m256i *out,
114                                          int stride, int height, int outstride,
115                                          int flipud, int fliplr) {
116   __m256i out1[64];
117   if (!flipud) {
118     for (int i = 0; i < height; i++) {
119       out1[i] = _mm256_loadu_si256((const __m256i *)(input + i * stride));
120     }
121   } else {
122     for (int i = 0; i < height; i++) {
123       out1[(height - 1) - i] =
124           _mm256_loadu_si256((const __m256i *)(input + i * stride));
125     }
126   }
127   if (!fliplr) {
128     for (int i = 0; i < height; i++) {
129       out[i * outstride] =
130           _mm256_cvtepi16_epi32(_mm256_castsi256_si128(out1[i]));
131       out[i * outstride + 1] =
132           _mm256_cvtepi16_epi32(_mm256_extractf128_si256(out1[i], 1));
133     }
134   } else {
135     for (int i = 0; i < height; i++) {
136       out[i * outstride + 1] = _mm256_cvtepi16_epi32(
137           mm_reverse_epi16(_mm256_castsi256_si128(out1[i])));
138       out[i * outstride + 0] = _mm256_cvtepi16_epi32(
139           mm_reverse_epi16(_mm256_extractf128_si256(out1[i], 1)));
140     }
141   }
142 }
143 
fwd_txfm_transpose_8x8_avx2(const __m256i * in,__m256i * out,const int instride,const int outstride)144 static void fwd_txfm_transpose_8x8_avx2(const __m256i *in, __m256i *out,
145                                         const int instride,
146                                         const int outstride) {
147   __m256i u0, u1, u2, u3, u4, u5, u6, u7;
148   __m256i x0, x1;
149 
150   u0 = _mm256_unpacklo_epi32(in[0 * instride], in[1 * instride]);
151   u1 = _mm256_unpackhi_epi32(in[0 * instride], in[1 * instride]);
152 
153   u2 = _mm256_unpacklo_epi32(in[2 * instride], in[3 * instride]);
154   u3 = _mm256_unpackhi_epi32(in[2 * instride], in[3 * instride]);
155 
156   u4 = _mm256_unpacklo_epi32(in[4 * instride], in[5 * instride]);
157   u5 = _mm256_unpackhi_epi32(in[4 * instride], in[5 * instride]);
158 
159   u6 = _mm256_unpacklo_epi32(in[6 * instride], in[7 * instride]);
160   u7 = _mm256_unpackhi_epi32(in[6 * instride], in[7 * instride]);
161 
162   x0 = _mm256_unpacklo_epi64(u0, u2);
163   x1 = _mm256_unpacklo_epi64(u4, u6);
164   out[0 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
165   out[4 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
166 
167   x0 = _mm256_unpackhi_epi64(u0, u2);
168   x1 = _mm256_unpackhi_epi64(u4, u6);
169   out[1 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
170   out[5 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
171 
172   x0 = _mm256_unpacklo_epi64(u1, u3);
173   x1 = _mm256_unpacklo_epi64(u5, u7);
174   out[2 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
175   out[6 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
176 
177   x0 = _mm256_unpackhi_epi64(u1, u3);
178   x1 = _mm256_unpackhi_epi64(u5, u7);
179   out[3 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
180   out[7 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
181 }
round_shift_32_8xn_avx2(__m256i * in,int size,int bit,int stride)182 static inline void round_shift_32_8xn_avx2(__m256i *in, int size, int bit,
183                                            int stride) {
184   if (bit < 0) {
185     bit = -bit;
186     __m256i round = _mm256_set1_epi32(1 << (bit - 1));
187     for (int i = 0; i < size; ++i) {
188       in[stride * i] = _mm256_add_epi32(in[stride * i], round);
189       in[stride * i] = _mm256_srai_epi32(in[stride * i], bit);
190     }
191   } else if (bit > 0) {
192     for (int i = 0; i < size; ++i) {
193       in[stride * i] = _mm256_slli_epi32(in[stride * i], bit);
194     }
195   }
196 }
store_buffer_avx2(const __m256i * const in,int32_t * out,const int stride,const int out_size)197 static inline void store_buffer_avx2(const __m256i *const in, int32_t *out,
198                                      const int stride, const int out_size) {
199   for (int i = 0; i < out_size; ++i) {
200     _mm256_store_si256((__m256i *)(out), in[i]);
201     out += stride;
202   }
203 }
fwd_txfm_transpose_16x16_avx2(const __m256i * in,__m256i * out)204 static inline void fwd_txfm_transpose_16x16_avx2(const __m256i *in,
205                                                  __m256i *out) {
206   fwd_txfm_transpose_8x8_avx2(&in[0], &out[0], 2, 2);
207   fwd_txfm_transpose_8x8_avx2(&in[1], &out[16], 2, 2);
208   fwd_txfm_transpose_8x8_avx2(&in[16], &out[1], 2, 2);
209   fwd_txfm_transpose_8x8_avx2(&in[17], &out[17], 2, 2);
210 }
211 
av1_half_btf_avx2(const __m256i * w0,const __m256i * n0,const __m256i * w1,const __m256i * n1,const __m256i * rounding,int bit)212 static inline __m256i av1_half_btf_avx2(const __m256i *w0, const __m256i *n0,
213                                         const __m256i *w1, const __m256i *n1,
214                                         const __m256i *rounding, int bit) {
215   __m256i x, y;
216 
217   x = _mm256_mullo_epi32(*w0, *n0);
218   y = _mm256_mullo_epi32(*w1, *n1);
219   x = _mm256_add_epi32(x, y);
220   x = _mm256_add_epi32(x, *rounding);
221   x = _mm256_srai_epi32(x, bit);
222   return x;
223 }
224 #define btf_32_avx2_type0(w0, w1, in0, in1, out0, out1, bit) \
225   do {                                                       \
226     const __m256i ww0 = _mm256_set1_epi32(w0);               \
227     const __m256i ww1 = _mm256_set1_epi32(w1);               \
228     const __m256i in0_w0 = _mm256_mullo_epi32(in0, ww0);     \
229     const __m256i in1_w1 = _mm256_mullo_epi32(in1, ww1);     \
230     out0 = _mm256_add_epi32(in0_w0, in1_w1);                 \
231     round_shift_32_8xn_avx2(&out0, 1, -bit, 1);              \
232     const __m256i in0_w1 = _mm256_mullo_epi32(in0, ww1);     \
233     const __m256i in1_w0 = _mm256_mullo_epi32(in1, ww0);     \
234     out1 = _mm256_sub_epi32(in0_w1, in1_w0);                 \
235     round_shift_32_8xn_avx2(&out1, 1, -bit, 1);              \
236   } while (0)
237 
238 #define btf_32_type0_avx2_new(ww0, ww1, in0, in1, out0, out1, r, bit) \
239   do {                                                                \
240     const __m256i in0_w0 = _mm256_mullo_epi32(in0, ww0);              \
241     const __m256i in1_w1 = _mm256_mullo_epi32(in1, ww1);              \
242     out0 = _mm256_add_epi32(in0_w0, in1_w1);                          \
243     out0 = _mm256_add_epi32(out0, r);                                 \
244     out0 = _mm256_srai_epi32(out0, bit);                              \
245     const __m256i in0_w1 = _mm256_mullo_epi32(in0, ww1);              \
246     const __m256i in1_w0 = _mm256_mullo_epi32(in1, ww0);              \
247     out1 = _mm256_sub_epi32(in0_w1, in1_w0);                          \
248     out1 = _mm256_add_epi32(out1, r);                                 \
249     out1 = _mm256_srai_epi32(out1, bit);                              \
250   } while (0)
251 
252 typedef void (*transform_1d_avx2)(__m256i *in, __m256i *out,
253                                   const int8_t cos_bit, int instride,
254                                   int outstride);
fdct8_avx2(__m256i * in,__m256i * out,const int8_t bit,const int col_num,const int outstride)255 static void fdct8_avx2(__m256i *in, __m256i *out, const int8_t bit,
256                        const int col_num, const int outstride) {
257   const int32_t *cospi = cospi_arr(bit);
258   const __m256i cospi32 = _mm256_set1_epi32(cospi[32]);
259   const __m256i cospim32 = _mm256_set1_epi32(-cospi[32]);
260   const __m256i cospi48 = _mm256_set1_epi32(cospi[48]);
261   const __m256i cospi16 = _mm256_set1_epi32(cospi[16]);
262   const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
263   const __m256i cospi8 = _mm256_set1_epi32(cospi[8]);
264   const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
265   const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
266   const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
267   __m256i u[8], v[8];
268   for (int col = 0; col < col_num; ++col) {
269     u[0] = _mm256_add_epi32(in[0 * col_num + col], in[7 * col_num + col]);
270     v[7] = _mm256_sub_epi32(in[0 * col_num + col], in[7 * col_num + col]);
271     u[1] = _mm256_add_epi32(in[1 * col_num + col], in[6 * col_num + col]);
272     u[6] = _mm256_sub_epi32(in[1 * col_num + col], in[6 * col_num + col]);
273     u[2] = _mm256_add_epi32(in[2 * col_num + col], in[5 * col_num + col]);
274     u[5] = _mm256_sub_epi32(in[2 * col_num + col], in[5 * col_num + col]);
275     u[3] = _mm256_add_epi32(in[3 * col_num + col], in[4 * col_num + col]);
276     v[4] = _mm256_sub_epi32(in[3 * col_num + col], in[4 * col_num + col]);
277     v[0] = _mm256_add_epi32(u[0], u[3]);
278     v[3] = _mm256_sub_epi32(u[0], u[3]);
279     v[1] = _mm256_add_epi32(u[1], u[2]);
280     v[2] = _mm256_sub_epi32(u[1], u[2]);
281 
282     v[5] = _mm256_mullo_epi32(u[5], cospim32);
283     v[6] = _mm256_mullo_epi32(u[6], cospi32);
284     v[5] = _mm256_add_epi32(v[5], v[6]);
285     v[5] = _mm256_add_epi32(v[5], rnding);
286     v[5] = _mm256_srai_epi32(v[5], bit);
287 
288     u[0] = _mm256_mullo_epi32(u[5], cospi32);
289     v[6] = _mm256_mullo_epi32(u[6], cospim32);
290     v[6] = _mm256_sub_epi32(u[0], v[6]);
291     v[6] = _mm256_add_epi32(v[6], rnding);
292     v[6] = _mm256_srai_epi32(v[6], bit);
293 
294     // stage 3
295     // type 0
296     v[0] = _mm256_mullo_epi32(v[0], cospi32);
297     v[1] = _mm256_mullo_epi32(v[1], cospi32);
298     u[0] = _mm256_add_epi32(v[0], v[1]);
299     u[0] = _mm256_add_epi32(u[0], rnding);
300     u[0] = _mm256_srai_epi32(u[0], bit);
301 
302     u[1] = _mm256_sub_epi32(v[0], v[1]);
303     u[1] = _mm256_add_epi32(u[1], rnding);
304     u[1] = _mm256_srai_epi32(u[1], bit);
305 
306     // type 1
307     v[0] = _mm256_mullo_epi32(v[2], cospi48);
308     v[1] = _mm256_mullo_epi32(v[3], cospi16);
309     u[2] = _mm256_add_epi32(v[0], v[1]);
310     u[2] = _mm256_add_epi32(u[2], rnding);
311     u[2] = _mm256_srai_epi32(u[2], bit);
312 
313     v[0] = _mm256_mullo_epi32(v[2], cospi16);
314     v[1] = _mm256_mullo_epi32(v[3], cospi48);
315     u[3] = _mm256_sub_epi32(v[1], v[0]);
316     u[3] = _mm256_add_epi32(u[3], rnding);
317     u[3] = _mm256_srai_epi32(u[3], bit);
318 
319     u[4] = _mm256_add_epi32(v[4], v[5]);
320     u[5] = _mm256_sub_epi32(v[4], v[5]);
321     u[6] = _mm256_sub_epi32(v[7], v[6]);
322     u[7] = _mm256_add_epi32(v[7], v[6]);
323 
324     // stage 4
325     // stage 5
326     v[0] = _mm256_mullo_epi32(u[4], cospi56);
327     v[1] = _mm256_mullo_epi32(u[7], cospi8);
328     v[0] = _mm256_add_epi32(v[0], v[1]);
329     v[0] = _mm256_add_epi32(v[0], rnding);
330     out[1 * outstride + col] = _mm256_srai_epi32(v[0], bit);  // buf0[4]
331 
332     v[0] = _mm256_mullo_epi32(u[4], cospi8);
333     v[1] = _mm256_mullo_epi32(u[7], cospi56);
334     v[0] = _mm256_sub_epi32(v[1], v[0]);
335     v[0] = _mm256_add_epi32(v[0], rnding);
336     out[7 * outstride + col] = _mm256_srai_epi32(v[0], bit);  // buf0[7]
337 
338     v[0] = _mm256_mullo_epi32(u[5], cospi24);
339     v[1] = _mm256_mullo_epi32(u[6], cospi40);
340     v[0] = _mm256_add_epi32(v[0], v[1]);
341     v[0] = _mm256_add_epi32(v[0], rnding);
342     out[5 * outstride + col] = _mm256_srai_epi32(v[0], bit);  // buf0[5]
343 
344     v[0] = _mm256_mullo_epi32(u[5], cospi40);
345     v[1] = _mm256_mullo_epi32(u[6], cospi24);
346     v[0] = _mm256_sub_epi32(v[1], v[0]);
347     v[0] = _mm256_add_epi32(v[0], rnding);
348     out[3 * outstride + col] = _mm256_srai_epi32(v[0], bit);  // buf0[6]
349 
350     out[0 * outstride + col] = u[0];  // buf0[0]
351     out[4 * outstride + col] = u[1];  // buf0[1]
352     out[2 * outstride + col] = u[2];  // buf0[2]
353     out[6 * outstride + col] = u[3];  // buf0[3]
354   }
355 }
fadst8_avx2(__m256i * in,__m256i * out,const int8_t bit,const int col_num,const int outstirde)356 static void fadst8_avx2(__m256i *in, __m256i *out, const int8_t bit,
357                         const int col_num, const int outstirde) {
358   (void)col_num;
359   const int32_t *cospi = cospi_arr(bit);
360   const __m256i cospi32 = _mm256_set1_epi32(cospi[32]);
361   const __m256i cospi16 = _mm256_set1_epi32(cospi[16]);
362   const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]);
363   const __m256i cospi48 = _mm256_set1_epi32(cospi[48]);
364   const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]);
365   const __m256i cospi4 = _mm256_set1_epi32(cospi[4]);
366   const __m256i cospim4 = _mm256_set1_epi32(-cospi[4]);
367   const __m256i cospi60 = _mm256_set1_epi32(cospi[60]);
368   const __m256i cospi20 = _mm256_set1_epi32(cospi[20]);
369   const __m256i cospim20 = _mm256_set1_epi32(-cospi[20]);
370   const __m256i cospi44 = _mm256_set1_epi32(cospi[44]);
371   const __m256i cospi28 = _mm256_set1_epi32(cospi[28]);
372   const __m256i cospi36 = _mm256_set1_epi32(cospi[36]);
373   const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]);
374   const __m256i cospi52 = _mm256_set1_epi32(cospi[52]);
375   const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]);
376   const __m256i cospi12 = _mm256_set1_epi32(cospi[12]);
377   const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
378   const __m256i zero = _mm256_setzero_si256();
379   __m256i u0, u1, u2, u3, u4, u5, u6, u7;
380   __m256i v0, v1, v2, v3, v4, v5, v6, v7;
381   __m256i x, y;
382   for (int col = 0; col < col_num; ++col) {
383     u0 = in[0 * col_num + col];
384     u1 = _mm256_sub_epi32(zero, in[7 * col_num + col]);
385     u2 = _mm256_sub_epi32(zero, in[3 * col_num + col]);
386     u3 = in[4 * col_num + col];
387     u4 = _mm256_sub_epi32(zero, in[1 * col_num + col]);
388     u5 = in[6 * col_num + col];
389     u6 = in[2 * col_num + col];
390     u7 = _mm256_sub_epi32(zero, in[5 * col_num + col]);
391 
392     // stage 2
393     v0 = u0;
394     v1 = u1;
395 
396     x = _mm256_mullo_epi32(u2, cospi32);
397     y = _mm256_mullo_epi32(u3, cospi32);
398     v2 = _mm256_add_epi32(x, y);
399     v2 = _mm256_add_epi32(v2, rnding);
400     v2 = _mm256_srai_epi32(v2, bit);
401 
402     v3 = _mm256_sub_epi32(x, y);
403     v3 = _mm256_add_epi32(v3, rnding);
404     v3 = _mm256_srai_epi32(v3, bit);
405 
406     v4 = u4;
407     v5 = u5;
408 
409     x = _mm256_mullo_epi32(u6, cospi32);
410     y = _mm256_mullo_epi32(u7, cospi32);
411     v6 = _mm256_add_epi32(x, y);
412     v6 = _mm256_add_epi32(v6, rnding);
413     v6 = _mm256_srai_epi32(v6, bit);
414 
415     v7 = _mm256_sub_epi32(x, y);
416     v7 = _mm256_add_epi32(v7, rnding);
417     v7 = _mm256_srai_epi32(v7, bit);
418 
419     // stage 3
420     u0 = _mm256_add_epi32(v0, v2);
421     u1 = _mm256_add_epi32(v1, v3);
422     u2 = _mm256_sub_epi32(v0, v2);
423     u3 = _mm256_sub_epi32(v1, v3);
424     u4 = _mm256_add_epi32(v4, v6);
425     u5 = _mm256_add_epi32(v5, v7);
426     u6 = _mm256_sub_epi32(v4, v6);
427     u7 = _mm256_sub_epi32(v5, v7);
428 
429     // stage 4
430     v0 = u0;
431     v1 = u1;
432     v2 = u2;
433     v3 = u3;
434 
435     x = _mm256_mullo_epi32(u4, cospi16);
436     y = _mm256_mullo_epi32(u5, cospi48);
437     v4 = _mm256_add_epi32(x, y);
438     v4 = _mm256_add_epi32(v4, rnding);
439     v4 = _mm256_srai_epi32(v4, bit);
440 
441     x = _mm256_mullo_epi32(u4, cospi48);
442     y = _mm256_mullo_epi32(u5, cospim16);
443     v5 = _mm256_add_epi32(x, y);
444     v5 = _mm256_add_epi32(v5, rnding);
445     v5 = _mm256_srai_epi32(v5, bit);
446 
447     x = _mm256_mullo_epi32(u6, cospim48);
448     y = _mm256_mullo_epi32(u7, cospi16);
449     v6 = _mm256_add_epi32(x, y);
450     v6 = _mm256_add_epi32(v6, rnding);
451     v6 = _mm256_srai_epi32(v6, bit);
452 
453     x = _mm256_mullo_epi32(u6, cospi16);
454     y = _mm256_mullo_epi32(u7, cospi48);
455     v7 = _mm256_add_epi32(x, y);
456     v7 = _mm256_add_epi32(v7, rnding);
457     v7 = _mm256_srai_epi32(v7, bit);
458 
459     // stage 5
460     u0 = _mm256_add_epi32(v0, v4);
461     u1 = _mm256_add_epi32(v1, v5);
462     u2 = _mm256_add_epi32(v2, v6);
463     u3 = _mm256_add_epi32(v3, v7);
464     u4 = _mm256_sub_epi32(v0, v4);
465     u5 = _mm256_sub_epi32(v1, v5);
466     u6 = _mm256_sub_epi32(v2, v6);
467     u7 = _mm256_sub_epi32(v3, v7);
468 
469     // stage 6
470     x = _mm256_mullo_epi32(u0, cospi4);
471     y = _mm256_mullo_epi32(u1, cospi60);
472     v0 = _mm256_add_epi32(x, y);
473     v0 = _mm256_add_epi32(v0, rnding);
474     v0 = _mm256_srai_epi32(v0, bit);
475 
476     x = _mm256_mullo_epi32(u0, cospi60);
477     y = _mm256_mullo_epi32(u1, cospim4);
478     v1 = _mm256_add_epi32(x, y);
479     v1 = _mm256_add_epi32(v1, rnding);
480     v1 = _mm256_srai_epi32(v1, bit);
481 
482     x = _mm256_mullo_epi32(u2, cospi20);
483     y = _mm256_mullo_epi32(u3, cospi44);
484     v2 = _mm256_add_epi32(x, y);
485     v2 = _mm256_add_epi32(v2, rnding);
486     v2 = _mm256_srai_epi32(v2, bit);
487 
488     x = _mm256_mullo_epi32(u2, cospi44);
489     y = _mm256_mullo_epi32(u3, cospim20);
490     v3 = _mm256_add_epi32(x, y);
491     v3 = _mm256_add_epi32(v3, rnding);
492     v3 = _mm256_srai_epi32(v3, bit);
493 
494     x = _mm256_mullo_epi32(u4, cospi36);
495     y = _mm256_mullo_epi32(u5, cospi28);
496     v4 = _mm256_add_epi32(x, y);
497     v4 = _mm256_add_epi32(v4, rnding);
498     v4 = _mm256_srai_epi32(v4, bit);
499 
500     x = _mm256_mullo_epi32(u4, cospi28);
501     y = _mm256_mullo_epi32(u5, cospim36);
502     v5 = _mm256_add_epi32(x, y);
503     v5 = _mm256_add_epi32(v5, rnding);
504     v5 = _mm256_srai_epi32(v5, bit);
505 
506     x = _mm256_mullo_epi32(u6, cospi52);
507     y = _mm256_mullo_epi32(u7, cospi12);
508     v6 = _mm256_add_epi32(x, y);
509     v6 = _mm256_add_epi32(v6, rnding);
510     v6 = _mm256_srai_epi32(v6, bit);
511 
512     x = _mm256_mullo_epi32(u6, cospi12);
513     y = _mm256_mullo_epi32(u7, cospim52);
514     v7 = _mm256_add_epi32(x, y);
515     v7 = _mm256_add_epi32(v7, rnding);
516     v7 = _mm256_srai_epi32(v7, bit);
517 
518     // stage 7
519     out[0 * outstirde + col] = v1;
520     out[1 * outstirde + col] = v6;
521     out[2 * outstirde + col] = v3;
522     out[3 * outstirde + col] = v4;
523     out[4 * outstirde + col] = v5;
524     out[5 * outstirde + col] = v2;
525     out[6 * outstirde + col] = v7;
526     out[7 * outstirde + col] = v0;
527   }
528 }
idtx8_avx2(__m256i * in,__m256i * out,const int8_t bit,int col_num,int outstride)529 static void idtx8_avx2(__m256i *in, __m256i *out, const int8_t bit, int col_num,
530                        int outstride) {
531   (void)bit;
532   (void)outstride;
533   int num_iters = 8 * col_num;
534   for (int i = 0; i < num_iters; i += 8) {
535     out[i] = _mm256_add_epi32(in[i], in[i]);
536     out[i + 1] = _mm256_add_epi32(in[i + 1], in[i + 1]);
537     out[i + 2] = _mm256_add_epi32(in[i + 2], in[i + 2]);
538     out[i + 3] = _mm256_add_epi32(in[i + 3], in[i + 3]);
539     out[i + 4] = _mm256_add_epi32(in[i + 4], in[i + 4]);
540     out[i + 5] = _mm256_add_epi32(in[i + 5], in[i + 5]);
541     out[i + 6] = _mm256_add_epi32(in[i + 6], in[i + 6]);
542     out[i + 7] = _mm256_add_epi32(in[i + 7], in[i + 7]);
543   }
544 }
av1_fwd_txfm2d_8x8_avx2(const int16_t * input,int32_t * coeff,int stride,TX_TYPE tx_type,int bd)545 void av1_fwd_txfm2d_8x8_avx2(const int16_t *input, int32_t *coeff, int stride,
546                              TX_TYPE tx_type, int bd) {
547   __m256i in[8], out[8];
548   const TX_SIZE tx_size = TX_8X8;
549   const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
550   const int txw_idx = get_txw_idx(tx_size);
551   const int txh_idx = get_txh_idx(tx_size);
552   const int width = tx_size_wide[tx_size];
553   const int width_div8 = (width >> 3);
554 
555   switch (tx_type) {
556     case DCT_DCT:
557       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
558       fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
559                  width_div8);
560       col_txfm_8x8_rounding(out, -shift[1]);
561       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
562       fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
563                  width_div8);
564       store_buffer_avx2(out, coeff, 8, 8);
565       break;
566     case ADST_DCT:
567       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
568       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
569                   width_div8);
570       col_txfm_8x8_rounding(out, -shift[1]);
571       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
572       fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
573                  width_div8);
574       store_buffer_avx2(out, coeff, 8, 8);
575       break;
576     case DCT_ADST:
577       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
578       fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
579                  width_div8);
580       col_txfm_8x8_rounding(out, -shift[1]);
581       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
582       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
583                   width_div8);
584       store_buffer_avx2(out, coeff, 8, 8);
585       break;
586     case ADST_ADST:
587       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
588       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
589                   width_div8);
590       col_txfm_8x8_rounding(out, -shift[1]);
591       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
592       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
593                   width_div8);
594       store_buffer_avx2(out, coeff, 8, 8);
595       break;
596     case FLIPADST_DCT:
597       load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
598       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
599                   width_div8);
600       col_txfm_8x8_rounding(out, -shift[1]);
601       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
602       fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
603                  width_div8);
604       store_buffer_avx2(out, coeff, 8, 8);
605       break;
606     case DCT_FLIPADST:
607       load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
608       fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
609                  width_div8);
610       col_txfm_8x8_rounding(out, -shift[1]);
611       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
612       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
613                   width_div8);
614       store_buffer_avx2(out, coeff, 8, 8);
615       break;
616     case FLIPADST_FLIPADST:
617       load_buffer_8x8_avx2(input, in, stride, 1, 1, shift[0]);
618       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
619                   width_div8);
620       col_txfm_8x8_rounding(out, -shift[1]);
621       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
622       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
623                   width_div8);
624       store_buffer_avx2(out, coeff, 8, 8);
625       break;
626     case ADST_FLIPADST:
627       load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
628       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
629                   width_div8);
630       col_txfm_8x8_rounding(out, -shift[1]);
631       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
632       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
633                   width_div8);
634       store_buffer_avx2(out, coeff, 8, 8);
635       break;
636     case FLIPADST_ADST:
637       load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
638       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
639                   width_div8);
640       col_txfm_8x8_rounding(out, -shift[1]);
641       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
642       fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
643                   width_div8);
644       store_buffer_avx2(out, coeff, 8, 8);
645       break;
646     case IDTX:
647       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
648       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
649                  width_div8);
650       col_txfm_8x8_rounding(out, -shift[1]);
651       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
652       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
653                  width_div8);
654       store_buffer_avx2(out, coeff, 8, 8);
655       break;
656     case V_DCT:
657       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
658       fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
659                  width_div8);
660       col_txfm_8x8_rounding(out, -shift[1]);
661       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
662       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
663                  width_div8);
664       store_buffer_avx2(out, coeff, 8, 8);
665       break;
666     case H_DCT:
667       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
668       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
669                  width_div8);
670       col_txfm_8x8_rounding(out, -shift[1]);
671       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
672       fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
673                  width_div8);
674       store_buffer_avx2(out, coeff, 8, 8);
675       break;
676     case V_ADST:
677       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
678       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
679                   width_div8);
680       col_txfm_8x8_rounding(out, -shift[1]);
681       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
682       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
683                  width_div8);
684       store_buffer_avx2(out, coeff, 8, 8);
685       break;
686     case H_ADST:
687       load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
688       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
689                  width_div8);
690       col_txfm_8x8_rounding(out, -shift[1]);
691       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
692       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
693                   width_div8);
694       store_buffer_avx2(out, coeff, 8, 8);
695       break;
696     case V_FLIPADST:
697       load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
698       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
699                   width_div8);
700       col_txfm_8x8_rounding(out, -shift[1]);
701       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
702       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
703                  width_div8);
704       store_buffer_avx2(out, coeff, 8, 8);
705       break;
706     case H_FLIPADST:
707       load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
708       idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
709                  width_div8);
710       col_txfm_8x8_rounding(out, -shift[1]);
711       fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
712       fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
713                   width_div8);
714       store_buffer_avx2(out, coeff, 8, 8);
715       break;
716     default: assert(0);
717   }
718   (void)bd;
719 }
720 
fdct16_avx2(__m256i * in,__m256i * out,const int8_t bit,const int col_num,const int outstride)721 static void fdct16_avx2(__m256i *in, __m256i *out, const int8_t bit,
722                         const int col_num, const int outstride) {
723   const int32_t *cospi = cospi_arr(bit);
724   const __m256i cospi32 = _mm256_set1_epi32(cospi[32]);
725   const __m256i cospim32 = _mm256_set1_epi32(-cospi[32]);
726   const __m256i cospi48 = _mm256_set1_epi32(cospi[48]);
727   const __m256i cospi16 = _mm256_set1_epi32(cospi[16]);
728   const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]);
729   const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]);
730   const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
731   const __m256i cospi8 = _mm256_set1_epi32(cospi[8]);
732   const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
733   const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
734   const __m256i cospi60 = _mm256_set1_epi32(cospi[60]);
735   const __m256i cospi4 = _mm256_set1_epi32(cospi[4]);
736   const __m256i cospi28 = _mm256_set1_epi32(cospi[28]);
737   const __m256i cospi36 = _mm256_set1_epi32(cospi[36]);
738   const __m256i cospi44 = _mm256_set1_epi32(cospi[44]);
739   const __m256i cospi20 = _mm256_set1_epi32(cospi[20]);
740   const __m256i cospi12 = _mm256_set1_epi32(cospi[12]);
741   const __m256i cospi52 = _mm256_set1_epi32(cospi[52]);
742   const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
743   __m256i u[16], v[16], x;
744   int col;
745 
746   // Calculate the column 0, 1, 2, 3
747   for (col = 0; col < col_num; ++col) {
748     // stage 0
749     // stage 1
750     u[0] = _mm256_add_epi32(in[0 * col_num + col], in[15 * col_num + col]);
751     u[15] = _mm256_sub_epi32(in[0 * col_num + col], in[15 * col_num + col]);
752     u[1] = _mm256_add_epi32(in[1 * col_num + col], in[14 * col_num + col]);
753     u[14] = _mm256_sub_epi32(in[1 * col_num + col], in[14 * col_num + col]);
754     u[2] = _mm256_add_epi32(in[2 * col_num + col], in[13 * col_num + col]);
755     u[13] = _mm256_sub_epi32(in[2 * col_num + col], in[13 * col_num + col]);
756     u[3] = _mm256_add_epi32(in[3 * col_num + col], in[12 * col_num + col]);
757     u[12] = _mm256_sub_epi32(in[3 * col_num + col], in[12 * col_num + col]);
758     u[4] = _mm256_add_epi32(in[4 * col_num + col], in[11 * col_num + col]);
759     u[11] = _mm256_sub_epi32(in[4 * col_num + col], in[11 * col_num + col]);
760     u[5] = _mm256_add_epi32(in[5 * col_num + col], in[10 * col_num + col]);
761     u[10] = _mm256_sub_epi32(in[5 * col_num + col], in[10 * col_num + col]);
762     u[6] = _mm256_add_epi32(in[6 * col_num + col], in[9 * col_num + col]);
763     u[9] = _mm256_sub_epi32(in[6 * col_num + col], in[9 * col_num + col]);
764     u[7] = _mm256_add_epi32(in[7 * col_num + col], in[8 * col_num + col]);
765     u[8] = _mm256_sub_epi32(in[7 * col_num + col], in[8 * col_num + col]);
766 
767     // stage 2
768     v[0] = _mm256_add_epi32(u[0], u[7]);
769     v[7] = _mm256_sub_epi32(u[0], u[7]);
770     v[1] = _mm256_add_epi32(u[1], u[6]);
771     v[6] = _mm256_sub_epi32(u[1], u[6]);
772     v[2] = _mm256_add_epi32(u[2], u[5]);
773     v[5] = _mm256_sub_epi32(u[2], u[5]);
774     v[3] = _mm256_add_epi32(u[3], u[4]);
775     v[4] = _mm256_sub_epi32(u[3], u[4]);
776     v[8] = u[8];
777     v[9] = u[9];
778 
779     v[10] = _mm256_mullo_epi32(u[10], cospim32);
780     x = _mm256_mullo_epi32(u[13], cospi32);
781     v[10] = _mm256_add_epi32(v[10], x);
782     v[10] = _mm256_add_epi32(v[10], rnding);
783     v[10] = _mm256_srai_epi32(v[10], bit);
784 
785     v[13] = _mm256_mullo_epi32(u[10], cospi32);
786     x = _mm256_mullo_epi32(u[13], cospim32);
787     v[13] = _mm256_sub_epi32(v[13], x);
788     v[13] = _mm256_add_epi32(v[13], rnding);
789     v[13] = _mm256_srai_epi32(v[13], bit);
790 
791     v[11] = _mm256_mullo_epi32(u[11], cospim32);
792     x = _mm256_mullo_epi32(u[12], cospi32);
793     v[11] = _mm256_add_epi32(v[11], x);
794     v[11] = _mm256_add_epi32(v[11], rnding);
795     v[11] = _mm256_srai_epi32(v[11], bit);
796 
797     v[12] = _mm256_mullo_epi32(u[11], cospi32);
798     x = _mm256_mullo_epi32(u[12], cospim32);
799     v[12] = _mm256_sub_epi32(v[12], x);
800     v[12] = _mm256_add_epi32(v[12], rnding);
801     v[12] = _mm256_srai_epi32(v[12], bit);
802     v[14] = u[14];
803     v[15] = u[15];
804 
805     // stage 3
806     u[0] = _mm256_add_epi32(v[0], v[3]);
807     u[3] = _mm256_sub_epi32(v[0], v[3]);
808     u[1] = _mm256_add_epi32(v[1], v[2]);
809     u[2] = _mm256_sub_epi32(v[1], v[2]);
810     u[4] = v[4];
811 
812     u[5] = _mm256_mullo_epi32(v[5], cospim32);
813     x = _mm256_mullo_epi32(v[6], cospi32);
814     u[5] = _mm256_add_epi32(u[5], x);
815     u[5] = _mm256_add_epi32(u[5], rnding);
816     u[5] = _mm256_srai_epi32(u[5], bit);
817 
818     u[6] = _mm256_mullo_epi32(v[5], cospi32);
819     x = _mm256_mullo_epi32(v[6], cospim32);
820     u[6] = _mm256_sub_epi32(u[6], x);
821     u[6] = _mm256_add_epi32(u[6], rnding);
822     u[6] = _mm256_srai_epi32(u[6], bit);
823 
824     u[7] = v[7];
825     u[8] = _mm256_add_epi32(v[8], v[11]);
826     u[11] = _mm256_sub_epi32(v[8], v[11]);
827     u[9] = _mm256_add_epi32(v[9], v[10]);
828     u[10] = _mm256_sub_epi32(v[9], v[10]);
829     u[12] = _mm256_sub_epi32(v[15], v[12]);
830     u[15] = _mm256_add_epi32(v[15], v[12]);
831     u[13] = _mm256_sub_epi32(v[14], v[13]);
832     u[14] = _mm256_add_epi32(v[14], v[13]);
833 
834     // stage 4
835     u[0] = _mm256_mullo_epi32(u[0], cospi32);
836     u[1] = _mm256_mullo_epi32(u[1], cospi32);
837     v[0] = _mm256_add_epi32(u[0], u[1]);
838     v[0] = _mm256_add_epi32(v[0], rnding);
839     v[0] = _mm256_srai_epi32(v[0], bit);
840 
841     v[1] = _mm256_sub_epi32(u[0], u[1]);
842     v[1] = _mm256_add_epi32(v[1], rnding);
843     v[1] = _mm256_srai_epi32(v[1], bit);
844 
845     v[2] = _mm256_mullo_epi32(u[2], cospi48);
846     x = _mm256_mullo_epi32(u[3], cospi16);
847     v[2] = _mm256_add_epi32(v[2], x);
848     v[2] = _mm256_add_epi32(v[2], rnding);
849     v[2] = _mm256_srai_epi32(v[2], bit);
850 
851     v[3] = _mm256_mullo_epi32(u[2], cospi16);
852     x = _mm256_mullo_epi32(u[3], cospi48);
853     v[3] = _mm256_sub_epi32(x, v[3]);
854     v[3] = _mm256_add_epi32(v[3], rnding);
855     v[3] = _mm256_srai_epi32(v[3], bit);
856 
857     v[4] = _mm256_add_epi32(u[4], u[5]);
858     v[5] = _mm256_sub_epi32(u[4], u[5]);
859     v[6] = _mm256_sub_epi32(u[7], u[6]);
860     v[7] = _mm256_add_epi32(u[7], u[6]);
861     v[8] = u[8];
862 
863     v[9] = _mm256_mullo_epi32(u[9], cospim16);
864     x = _mm256_mullo_epi32(u[14], cospi48);
865     v[9] = _mm256_add_epi32(v[9], x);
866     v[9] = _mm256_add_epi32(v[9], rnding);
867     v[9] = _mm256_srai_epi32(v[9], bit);
868 
869     v[14] = _mm256_mullo_epi32(u[9], cospi48);
870     x = _mm256_mullo_epi32(u[14], cospim16);
871     v[14] = _mm256_sub_epi32(v[14], x);
872     v[14] = _mm256_add_epi32(v[14], rnding);
873     v[14] = _mm256_srai_epi32(v[14], bit);
874 
875     v[10] = _mm256_mullo_epi32(u[10], cospim48);
876     x = _mm256_mullo_epi32(u[13], cospim16);
877     v[10] = _mm256_add_epi32(v[10], x);
878     v[10] = _mm256_add_epi32(v[10], rnding);
879     v[10] = _mm256_srai_epi32(v[10], bit);
880 
881     v[13] = _mm256_mullo_epi32(u[10], cospim16);
882     x = _mm256_mullo_epi32(u[13], cospim48);
883     v[13] = _mm256_sub_epi32(v[13], x);
884     v[13] = _mm256_add_epi32(v[13], rnding);
885     v[13] = _mm256_srai_epi32(v[13], bit);
886 
887     v[11] = u[11];
888     v[12] = u[12];
889     v[15] = u[15];
890 
891     // stage 5
892     u[0] = v[0];
893     u[1] = v[1];
894     u[2] = v[2];
895     u[3] = v[3];
896 
897     u[4] = _mm256_mullo_epi32(v[4], cospi56);
898     x = _mm256_mullo_epi32(v[7], cospi8);
899     u[4] = _mm256_add_epi32(u[4], x);
900     u[4] = _mm256_add_epi32(u[4], rnding);
901     u[4] = _mm256_srai_epi32(u[4], bit);
902 
903     u[7] = _mm256_mullo_epi32(v[4], cospi8);
904     x = _mm256_mullo_epi32(v[7], cospi56);
905     u[7] = _mm256_sub_epi32(x, u[7]);
906     u[7] = _mm256_add_epi32(u[7], rnding);
907     u[7] = _mm256_srai_epi32(u[7], bit);
908 
909     u[5] = _mm256_mullo_epi32(v[5], cospi24);
910     x = _mm256_mullo_epi32(v[6], cospi40);
911     u[5] = _mm256_add_epi32(u[5], x);
912     u[5] = _mm256_add_epi32(u[5], rnding);
913     u[5] = _mm256_srai_epi32(u[5], bit);
914 
915     u[6] = _mm256_mullo_epi32(v[5], cospi40);
916     x = _mm256_mullo_epi32(v[6], cospi24);
917     u[6] = _mm256_sub_epi32(x, u[6]);
918     u[6] = _mm256_add_epi32(u[6], rnding);
919     u[6] = _mm256_srai_epi32(u[6], bit);
920 
921     u[8] = _mm256_add_epi32(v[8], v[9]);
922     u[9] = _mm256_sub_epi32(v[8], v[9]);
923     u[10] = _mm256_sub_epi32(v[11], v[10]);
924     u[11] = _mm256_add_epi32(v[11], v[10]);
925     u[12] = _mm256_add_epi32(v[12], v[13]);
926     u[13] = _mm256_sub_epi32(v[12], v[13]);
927     u[14] = _mm256_sub_epi32(v[15], v[14]);
928     u[15] = _mm256_add_epi32(v[15], v[14]);
929 
930     // stage 6
931     v[0] = u[0];
932     v[1] = u[1];
933     v[2] = u[2];
934     v[3] = u[3];
935     v[4] = u[4];
936     v[5] = u[5];
937     v[6] = u[6];
938     v[7] = u[7];
939 
940     v[8] = _mm256_mullo_epi32(u[8], cospi60);
941     x = _mm256_mullo_epi32(u[15], cospi4);
942     v[8] = _mm256_add_epi32(v[8], x);
943     v[8] = _mm256_add_epi32(v[8], rnding);
944     v[8] = _mm256_srai_epi32(v[8], bit);
945 
946     v[15] = _mm256_mullo_epi32(u[8], cospi4);
947     x = _mm256_mullo_epi32(u[15], cospi60);
948     v[15] = _mm256_sub_epi32(x, v[15]);
949     v[15] = _mm256_add_epi32(v[15], rnding);
950     v[15] = _mm256_srai_epi32(v[15], bit);
951 
952     v[9] = _mm256_mullo_epi32(u[9], cospi28);
953     x = _mm256_mullo_epi32(u[14], cospi36);
954     v[9] = _mm256_add_epi32(v[9], x);
955     v[9] = _mm256_add_epi32(v[9], rnding);
956     v[9] = _mm256_srai_epi32(v[9], bit);
957 
958     v[14] = _mm256_mullo_epi32(u[9], cospi36);
959     x = _mm256_mullo_epi32(u[14], cospi28);
960     v[14] = _mm256_sub_epi32(x, v[14]);
961     v[14] = _mm256_add_epi32(v[14], rnding);
962     v[14] = _mm256_srai_epi32(v[14], bit);
963 
964     v[10] = _mm256_mullo_epi32(u[10], cospi44);
965     x = _mm256_mullo_epi32(u[13], cospi20);
966     v[10] = _mm256_add_epi32(v[10], x);
967     v[10] = _mm256_add_epi32(v[10], rnding);
968     v[10] = _mm256_srai_epi32(v[10], bit);
969 
970     v[13] = _mm256_mullo_epi32(u[10], cospi20);
971     x = _mm256_mullo_epi32(u[13], cospi44);
972     v[13] = _mm256_sub_epi32(x, v[13]);
973     v[13] = _mm256_add_epi32(v[13], rnding);
974     v[13] = _mm256_srai_epi32(v[13], bit);
975 
976     v[11] = _mm256_mullo_epi32(u[11], cospi12);
977     x = _mm256_mullo_epi32(u[12], cospi52);
978     v[11] = _mm256_add_epi32(v[11], x);
979     v[11] = _mm256_add_epi32(v[11], rnding);
980     v[11] = _mm256_srai_epi32(v[11], bit);
981 
982     v[12] = _mm256_mullo_epi32(u[11], cospi52);
983     x = _mm256_mullo_epi32(u[12], cospi12);
984     v[12] = _mm256_sub_epi32(x, v[12]);
985     v[12] = _mm256_add_epi32(v[12], rnding);
986     v[12] = _mm256_srai_epi32(v[12], bit);
987 
988     out[0 * outstride + col] = v[0];
989     out[1 * outstride + col] = v[8];
990     out[2 * outstride + col] = v[4];
991     out[3 * outstride + col] = v[12];
992     out[4 * outstride + col] = v[2];
993     out[5 * outstride + col] = v[10];
994     out[6 * outstride + col] = v[6];
995     out[7 * outstride + col] = v[14];
996     out[8 * outstride + col] = v[1];
997     out[9 * outstride + col] = v[9];
998     out[10 * outstride + col] = v[5];
999     out[11 * outstride + col] = v[13];
1000     out[12 * outstride + col] = v[3];
1001     out[13 * outstride + col] = v[11];
1002     out[14 * outstride + col] = v[7];
1003     out[15 * outstride + col] = v[15];
1004   }
1005 }
fadst16_avx2(__m256i * in,__m256i * out,const int8_t bit,const int num_cols,const int outstride)1006 static void fadst16_avx2(__m256i *in, __m256i *out, const int8_t bit,
1007                          const int num_cols, const int outstride) {
1008   const int32_t *cospi = cospi_arr(bit);
1009   const __m256i cospi32 = _mm256_set1_epi32(cospi[32]);
1010   const __m256i cospi48 = _mm256_set1_epi32(cospi[48]);
1011   const __m256i cospi16 = _mm256_set1_epi32(cospi[16]);
1012   const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]);
1013   const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]);
1014   const __m256i cospi8 = _mm256_set1_epi32(cospi[8]);
1015   const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
1016   const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]);
1017   const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]);
1018   const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
1019   const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]);
1020   const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]);
1021   const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
1022   const __m256i cospi2 = _mm256_set1_epi32(cospi[2]);
1023   const __m256i cospi62 = _mm256_set1_epi32(cospi[62]);
1024   const __m256i cospim2 = _mm256_set1_epi32(-cospi[2]);
1025   const __m256i cospi10 = _mm256_set1_epi32(cospi[10]);
1026   const __m256i cospi54 = _mm256_set1_epi32(cospi[54]);
1027   const __m256i cospim10 = _mm256_set1_epi32(-cospi[10]);
1028   const __m256i cospi18 = _mm256_set1_epi32(cospi[18]);
1029   const __m256i cospi46 = _mm256_set1_epi32(cospi[46]);
1030   const __m256i cospim18 = _mm256_set1_epi32(-cospi[18]);
1031   const __m256i cospi26 = _mm256_set1_epi32(cospi[26]);
1032   const __m256i cospi38 = _mm256_set1_epi32(cospi[38]);
1033   const __m256i cospim26 = _mm256_set1_epi32(-cospi[26]);
1034   const __m256i cospi34 = _mm256_set1_epi32(cospi[34]);
1035   const __m256i cospi30 = _mm256_set1_epi32(cospi[30]);
1036   const __m256i cospim34 = _mm256_set1_epi32(-cospi[34]);
1037   const __m256i cospi42 = _mm256_set1_epi32(cospi[42]);
1038   const __m256i cospi22 = _mm256_set1_epi32(cospi[22]);
1039   const __m256i cospim42 = _mm256_set1_epi32(-cospi[42]);
1040   const __m256i cospi50 = _mm256_set1_epi32(cospi[50]);
1041   const __m256i cospi14 = _mm256_set1_epi32(cospi[14]);
1042   const __m256i cospim50 = _mm256_set1_epi32(-cospi[50]);
1043   const __m256i cospi58 = _mm256_set1_epi32(cospi[58]);
1044   const __m256i cospi6 = _mm256_set1_epi32(cospi[6]);
1045   const __m256i cospim58 = _mm256_set1_epi32(-cospi[58]);
1046   const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
1047   const __m256i zero = _mm256_setzero_si256();
1048 
1049   __m256i u[16], v[16], x, y;
1050   int col;
1051 
1052   for (col = 0; col < num_cols; ++col) {
1053     // stage 0
1054     // stage 1
1055     u[0] = in[0 * num_cols + col];
1056     u[1] = _mm256_sub_epi32(zero, in[15 * num_cols + col]);
1057     u[2] = _mm256_sub_epi32(zero, in[7 * num_cols + col]);
1058     u[3] = in[8 * num_cols + col];
1059     u[4] = _mm256_sub_epi32(zero, in[3 * num_cols + col]);
1060     u[5] = in[12 * num_cols + col];
1061     u[6] = in[4 * num_cols + col];
1062     u[7] = _mm256_sub_epi32(zero, in[11 * num_cols + col]);
1063     u[8] = _mm256_sub_epi32(zero, in[1 * num_cols + col]);
1064     u[9] = in[14 * num_cols + col];
1065     u[10] = in[6 * num_cols + col];
1066     u[11] = _mm256_sub_epi32(zero, in[9 * num_cols + col]);
1067     u[12] = in[2 * num_cols + col];
1068     u[13] = _mm256_sub_epi32(zero, in[13 * num_cols + col]);
1069     u[14] = _mm256_sub_epi32(zero, in[5 * num_cols + col]);
1070     u[15] = in[10 * num_cols + col];
1071 
1072     // stage 2
1073     v[0] = u[0];
1074     v[1] = u[1];
1075 
1076     x = _mm256_mullo_epi32(u[2], cospi32);
1077     y = _mm256_mullo_epi32(u[3], cospi32);
1078     v[2] = _mm256_add_epi32(x, y);
1079     v[2] = _mm256_add_epi32(v[2], rnding);
1080     v[2] = _mm256_srai_epi32(v[2], bit);
1081 
1082     v[3] = _mm256_sub_epi32(x, y);
1083     v[3] = _mm256_add_epi32(v[3], rnding);
1084     v[3] = _mm256_srai_epi32(v[3], bit);
1085 
1086     v[4] = u[4];
1087     v[5] = u[5];
1088 
1089     x = _mm256_mullo_epi32(u[6], cospi32);
1090     y = _mm256_mullo_epi32(u[7], cospi32);
1091     v[6] = _mm256_add_epi32(x, y);
1092     v[6] = _mm256_add_epi32(v[6], rnding);
1093     v[6] = _mm256_srai_epi32(v[6], bit);
1094 
1095     v[7] = _mm256_sub_epi32(x, y);
1096     v[7] = _mm256_add_epi32(v[7], rnding);
1097     v[7] = _mm256_srai_epi32(v[7], bit);
1098 
1099     v[8] = u[8];
1100     v[9] = u[9];
1101 
1102     x = _mm256_mullo_epi32(u[10], cospi32);
1103     y = _mm256_mullo_epi32(u[11], cospi32);
1104     v[10] = _mm256_add_epi32(x, y);
1105     v[10] = _mm256_add_epi32(v[10], rnding);
1106     v[10] = _mm256_srai_epi32(v[10], bit);
1107 
1108     v[11] = _mm256_sub_epi32(x, y);
1109     v[11] = _mm256_add_epi32(v[11], rnding);
1110     v[11] = _mm256_srai_epi32(v[11], bit);
1111 
1112     v[12] = u[12];
1113     v[13] = u[13];
1114 
1115     x = _mm256_mullo_epi32(u[14], cospi32);
1116     y = _mm256_mullo_epi32(u[15], cospi32);
1117     v[14] = _mm256_add_epi32(x, y);
1118     v[14] = _mm256_add_epi32(v[14], rnding);
1119     v[14] = _mm256_srai_epi32(v[14], bit);
1120 
1121     v[15] = _mm256_sub_epi32(x, y);
1122     v[15] = _mm256_add_epi32(v[15], rnding);
1123     v[15] = _mm256_srai_epi32(v[15], bit);
1124 
1125     // stage 3
1126     u[0] = _mm256_add_epi32(v[0], v[2]);
1127     u[1] = _mm256_add_epi32(v[1], v[3]);
1128     u[2] = _mm256_sub_epi32(v[0], v[2]);
1129     u[3] = _mm256_sub_epi32(v[1], v[3]);
1130     u[4] = _mm256_add_epi32(v[4], v[6]);
1131     u[5] = _mm256_add_epi32(v[5], v[7]);
1132     u[6] = _mm256_sub_epi32(v[4], v[6]);
1133     u[7] = _mm256_sub_epi32(v[5], v[7]);
1134     u[8] = _mm256_add_epi32(v[8], v[10]);
1135     u[9] = _mm256_add_epi32(v[9], v[11]);
1136     u[10] = _mm256_sub_epi32(v[8], v[10]);
1137     u[11] = _mm256_sub_epi32(v[9], v[11]);
1138     u[12] = _mm256_add_epi32(v[12], v[14]);
1139     u[13] = _mm256_add_epi32(v[13], v[15]);
1140     u[14] = _mm256_sub_epi32(v[12], v[14]);
1141     u[15] = _mm256_sub_epi32(v[13], v[15]);
1142 
1143     // stage 4
1144     v[0] = u[0];
1145     v[1] = u[1];
1146     v[2] = u[2];
1147     v[3] = u[3];
1148     v[4] = av1_half_btf_avx2(&cospi16, &u[4], &cospi48, &u[5], &rnding, bit);
1149     v[5] = av1_half_btf_avx2(&cospi48, &u[4], &cospim16, &u[5], &rnding, bit);
1150     v[6] = av1_half_btf_avx2(&cospim48, &u[6], &cospi16, &u[7], &rnding, bit);
1151     v[7] = av1_half_btf_avx2(&cospi16, &u[6], &cospi48, &u[7], &rnding, bit);
1152     v[8] = u[8];
1153     v[9] = u[9];
1154     v[10] = u[10];
1155     v[11] = u[11];
1156     v[12] = av1_half_btf_avx2(&cospi16, &u[12], &cospi48, &u[13], &rnding, bit);
1157     v[13] =
1158         av1_half_btf_avx2(&cospi48, &u[12], &cospim16, &u[13], &rnding, bit);
1159     v[14] =
1160         av1_half_btf_avx2(&cospim48, &u[14], &cospi16, &u[15], &rnding, bit);
1161     v[15] = av1_half_btf_avx2(&cospi16, &u[14], &cospi48, &u[15], &rnding, bit);
1162 
1163     // stage 5
1164     u[0] = _mm256_add_epi32(v[0], v[4]);
1165     u[1] = _mm256_add_epi32(v[1], v[5]);
1166     u[2] = _mm256_add_epi32(v[2], v[6]);
1167     u[3] = _mm256_add_epi32(v[3], v[7]);
1168     u[4] = _mm256_sub_epi32(v[0], v[4]);
1169     u[5] = _mm256_sub_epi32(v[1], v[5]);
1170     u[6] = _mm256_sub_epi32(v[2], v[6]);
1171     u[7] = _mm256_sub_epi32(v[3], v[7]);
1172     u[8] = _mm256_add_epi32(v[8], v[12]);
1173     u[9] = _mm256_add_epi32(v[9], v[13]);
1174     u[10] = _mm256_add_epi32(v[10], v[14]);
1175     u[11] = _mm256_add_epi32(v[11], v[15]);
1176     u[12] = _mm256_sub_epi32(v[8], v[12]);
1177     u[13] = _mm256_sub_epi32(v[9], v[13]);
1178     u[14] = _mm256_sub_epi32(v[10], v[14]);
1179     u[15] = _mm256_sub_epi32(v[11], v[15]);
1180 
1181     // stage 6
1182     v[0] = u[0];
1183     v[1] = u[1];
1184     v[2] = u[2];
1185     v[3] = u[3];
1186     v[4] = u[4];
1187     v[5] = u[5];
1188     v[6] = u[6];
1189     v[7] = u[7];
1190     v[8] = av1_half_btf_avx2(&cospi8, &u[8], &cospi56, &u[9], &rnding, bit);
1191     v[9] = av1_half_btf_avx2(&cospi56, &u[8], &cospim8, &u[9], &rnding, bit);
1192     v[10] = av1_half_btf_avx2(&cospi40, &u[10], &cospi24, &u[11], &rnding, bit);
1193     v[11] =
1194         av1_half_btf_avx2(&cospi24, &u[10], &cospim40, &u[11], &rnding, bit);
1195     v[12] = av1_half_btf_avx2(&cospim56, &u[12], &cospi8, &u[13], &rnding, bit);
1196     v[13] = av1_half_btf_avx2(&cospi8, &u[12], &cospi56, &u[13], &rnding, bit);
1197     v[14] =
1198         av1_half_btf_avx2(&cospim24, &u[14], &cospi40, &u[15], &rnding, bit);
1199     v[15] = av1_half_btf_avx2(&cospi40, &u[14], &cospi24, &u[15], &rnding, bit);
1200 
1201     // stage 7
1202     u[0] = _mm256_add_epi32(v[0], v[8]);
1203     u[1] = _mm256_add_epi32(v[1], v[9]);
1204     u[2] = _mm256_add_epi32(v[2], v[10]);
1205     u[3] = _mm256_add_epi32(v[3], v[11]);
1206     u[4] = _mm256_add_epi32(v[4], v[12]);
1207     u[5] = _mm256_add_epi32(v[5], v[13]);
1208     u[6] = _mm256_add_epi32(v[6], v[14]);
1209     u[7] = _mm256_add_epi32(v[7], v[15]);
1210     u[8] = _mm256_sub_epi32(v[0], v[8]);
1211     u[9] = _mm256_sub_epi32(v[1], v[9]);
1212     u[10] = _mm256_sub_epi32(v[2], v[10]);
1213     u[11] = _mm256_sub_epi32(v[3], v[11]);
1214     u[12] = _mm256_sub_epi32(v[4], v[12]);
1215     u[13] = _mm256_sub_epi32(v[5], v[13]);
1216     u[14] = _mm256_sub_epi32(v[6], v[14]);
1217     u[15] = _mm256_sub_epi32(v[7], v[15]);
1218 
1219     // stage 8
1220     v[0] = av1_half_btf_avx2(&cospi2, &u[0], &cospi62, &u[1], &rnding, bit);
1221     v[1] = av1_half_btf_avx2(&cospi62, &u[0], &cospim2, &u[1], &rnding, bit);
1222     v[2] = av1_half_btf_avx2(&cospi10, &u[2], &cospi54, &u[3], &rnding, bit);
1223     v[3] = av1_half_btf_avx2(&cospi54, &u[2], &cospim10, &u[3], &rnding, bit);
1224     v[4] = av1_half_btf_avx2(&cospi18, &u[4], &cospi46, &u[5], &rnding, bit);
1225     v[5] = av1_half_btf_avx2(&cospi46, &u[4], &cospim18, &u[5], &rnding, bit);
1226     v[6] = av1_half_btf_avx2(&cospi26, &u[6], &cospi38, &u[7], &rnding, bit);
1227     v[7] = av1_half_btf_avx2(&cospi38, &u[6], &cospim26, &u[7], &rnding, bit);
1228     v[8] = av1_half_btf_avx2(&cospi34, &u[8], &cospi30, &u[9], &rnding, bit);
1229     v[9] = av1_half_btf_avx2(&cospi30, &u[8], &cospim34, &u[9], &rnding, bit);
1230     v[10] = av1_half_btf_avx2(&cospi42, &u[10], &cospi22, &u[11], &rnding, bit);
1231     v[11] =
1232         av1_half_btf_avx2(&cospi22, &u[10], &cospim42, &u[11], &rnding, bit);
1233     v[12] = av1_half_btf_avx2(&cospi50, &u[12], &cospi14, &u[13], &rnding, bit);
1234     v[13] =
1235         av1_half_btf_avx2(&cospi14, &u[12], &cospim50, &u[13], &rnding, bit);
1236     v[14] = av1_half_btf_avx2(&cospi58, &u[14], &cospi6, &u[15], &rnding, bit);
1237     v[15] = av1_half_btf_avx2(&cospi6, &u[14], &cospim58, &u[15], &rnding, bit);
1238 
1239     // stage 9
1240     out[0 * outstride + col] = v[1];
1241     out[1 * outstride + col] = v[14];
1242     out[2 * outstride + col] = v[3];
1243     out[3 * outstride + col] = v[12];
1244     out[4 * outstride + col] = v[5];
1245     out[5 * outstride + col] = v[10];
1246     out[6 * outstride + col] = v[7];
1247     out[7 * outstride + col] = v[8];
1248     out[8 * outstride + col] = v[9];
1249     out[9 * outstride + col] = v[6];
1250     out[10 * outstride + col] = v[11];
1251     out[11 * outstride + col] = v[4];
1252     out[12 * outstride + col] = v[13];
1253     out[13 * outstride + col] = v[2];
1254     out[14 * outstride + col] = v[15];
1255     out[15 * outstride + col] = v[0];
1256   }
1257 }
idtx16_avx2(__m256i * in,__m256i * out,const int8_t bit,int col_num,const int outstride)1258 static void idtx16_avx2(__m256i *in, __m256i *out, const int8_t bit,
1259                         int col_num, const int outstride) {
1260   (void)bit;
1261   (void)outstride;
1262   __m256i fact = _mm256_set1_epi32(2 * NewSqrt2);
1263   __m256i offset = _mm256_set1_epi32(1 << (NewSqrt2Bits - 1));
1264   __m256i a_low;
1265 
1266   int num_iters = 16 * col_num;
1267   for (int i = 0; i < num_iters; i++) {
1268     a_low = _mm256_mullo_epi32(in[i], fact);
1269     a_low = _mm256_add_epi32(a_low, offset);
1270     out[i] = _mm256_srai_epi32(a_low, NewSqrt2Bits);
1271   }
1272 }
1273 static const transform_1d_avx2 col_highbd_txfm8x16_arr[TX_TYPES] = {
1274   fdct16_avx2,   // DCT_DCT
1275   fadst16_avx2,  // ADST_DCT
1276   fdct16_avx2,   // DCT_ADST
1277   fadst16_avx2,  // ADST_ADST
1278   fadst16_avx2,  // FLIPADST_DCT
1279   fdct16_avx2,   // DCT_FLIPADST
1280   fadst16_avx2,  // FLIPADST_FLIPADST
1281   fadst16_avx2,  // ADST_FLIPADST
1282   fadst16_avx2,  // FLIPADST_ADST
1283   idtx16_avx2,   // IDTX
1284   fdct16_avx2,   // V_DCT
1285   idtx16_avx2,   // H_DCT
1286   fadst16_avx2,  // V_ADST
1287   idtx16_avx2,   // H_ADST
1288   fadst16_avx2,  // V_FLIPADST
1289   idtx16_avx2    // H_FLIPADST
1290 };
1291 static const transform_1d_avx2 row_highbd_txfm8x8_arr[TX_TYPES] = {
1292   fdct8_avx2,   // DCT_DCT
1293   fdct8_avx2,   // ADST_DCT
1294   fadst8_avx2,  // DCT_ADST
1295   fadst8_avx2,  // ADST_ADST
1296   fdct8_avx2,   // FLIPADST_DCT
1297   fadst8_avx2,  // DCT_FLIPADST
1298   fadst8_avx2,  // FLIPADST_FLIPADST
1299   fadst8_avx2,  // ADST_FLIPADST
1300   fadst8_avx2,  // FLIPADST_ADST
1301   idtx8_avx2,   // IDTX
1302   idtx8_avx2,   // V_DCT
1303   fdct8_avx2,   // H_DCT
1304   idtx8_avx2,   // V_ADST
1305   fadst8_avx2,  // H_ADST
1306   idtx8_avx2,   // V_FLIPADST
1307   fadst8_avx2   // H_FLIPADST
1308 };
av1_fwd_txfm2d_8x16_avx2(const int16_t * input,int32_t * coeff,int stride,TX_TYPE tx_type,int bd)1309 void av1_fwd_txfm2d_8x16_avx2(const int16_t *input, int32_t *coeff, int stride,
1310                               TX_TYPE tx_type, int bd) {
1311   __m256i in[16], out[16];
1312   const int8_t *shift = av1_fwd_txfm_shift_ls[TX_8X16];
1313   const int txw_idx = get_txw_idx(TX_8X16);
1314   const int txh_idx = get_txh_idx(TX_8X16);
1315   const transform_1d_avx2 col_txfm = col_highbd_txfm8x16_arr[tx_type];
1316   const transform_1d_avx2 row_txfm = row_highbd_txfm8x8_arr[tx_type];
1317   const int8_t bit = av1_fwd_cos_bit_col[txw_idx][txh_idx];
1318   int ud_flip, lr_flip;
1319   get_flip_cfg(tx_type, &ud_flip, &lr_flip);
1320 
1321   load_buffer_8x16_avx2(input, in, stride, ud_flip, lr_flip, shift[0]);
1322   col_txfm(in, out, bit, 1, 1);
1323   col_txfm_8x8_rounding(out, -shift[1]);
1324   col_txfm_8x8_rounding(&out[8], -shift[1]);
1325   fwd_txfm_transpose_8x8_avx2(out, in, 1, 2);
1326   fwd_txfm_transpose_8x8_avx2(&out[8], &in[1], 1, 2);
1327   row_txfm(in, out, bit, 2, 2);
1328   round_shift_rect_array_32_avx2(out, in, 16, -shift[2], NewSqrt2);
1329   store_buffer_avx2(in, coeff, 8, 16);
1330   (void)bd;
1331 }
1332 static const transform_1d_avx2 col_highbd_txfm8x8_arr[TX_TYPES] = {
1333   fdct8_avx2,   // DCT_DCT
1334   fadst8_avx2,  // ADST_DCT
1335   fdct8_avx2,   // DCT_ADST
1336   fadst8_avx2,  // ADST_ADST
1337   fadst8_avx2,  // FLIPADST_DCT
1338   fdct8_avx2,   // DCT_FLIPADST
1339   fadst8_avx2,  // FLIPADST_FLIPADST
1340   fadst8_avx2,  // ADST_FLIPADST
1341   fadst8_avx2,  // FLIPADST_ADST
1342   idtx8_avx2,   // IDTX
1343   fdct8_avx2,   // V_DCT
1344   idtx8_avx2,   // H_DCT
1345   fadst8_avx2,  // V_ADST
1346   idtx8_avx2,   // H_ADST
1347   fadst8_avx2,  // V_FLIPADST
1348   idtx8_avx2    // H_FLIPADST
1349 };
1350 static const transform_1d_avx2 row_highbd_txfm8x16_arr[TX_TYPES] = {
1351   fdct16_avx2,   // DCT_DCT
1352   fdct16_avx2,   // ADST_DCT
1353   fadst16_avx2,  // DCT_ADST
1354   fadst16_avx2,  // ADST_ADST
1355   fdct16_avx2,   // FLIPADST_DCT
1356   fadst16_avx2,  // DCT_FLIPADST
1357   fadst16_avx2,  // FLIPADST_FLIPADST
1358   fadst16_avx2,  // ADST_FLIPADST
1359   fadst16_avx2,  // FLIPADST_ADST
1360   idtx16_avx2,   // IDTX
1361   idtx16_avx2,   // V_DCT
1362   fdct16_avx2,   // H_DCT
1363   idtx16_avx2,   // V_ADST
1364   fadst16_avx2,  // H_ADST
1365   idtx16_avx2,   // V_FLIPADST
1366   fadst16_avx2   // H_FLIPADST
1367 };
av1_fwd_txfm2d_16x8_avx2(const int16_t * input,int32_t * coeff,int stride,TX_TYPE tx_type,int bd)1368 void av1_fwd_txfm2d_16x8_avx2(const int16_t *input, int32_t *coeff, int stride,
1369                               TX_TYPE tx_type, int bd) {
1370   __m256i in[16], out[16];
1371   const int8_t *shift = av1_fwd_txfm_shift_ls[TX_16X8];
1372   const int txw_idx = get_txw_idx(TX_16X8);
1373   const int txh_idx = get_txh_idx(TX_16X8);
1374   const transform_1d_avx2 col_txfm = col_highbd_txfm8x8_arr[tx_type];
1375   const transform_1d_avx2 row_txfm = row_highbd_txfm8x16_arr[tx_type];
1376   const int8_t bit = av1_fwd_cos_bit_col[txw_idx][txh_idx];
1377   int ud_flip, lr_flip;
1378   get_flip_cfg(tx_type, &ud_flip, &lr_flip);
1379 
1380   load_buffer_16xn_avx2(input, in, stride, 8, 2, ud_flip, lr_flip);
1381   round_shift_32_8xn_avx2(in, 16, shift[0], 1);
1382   col_txfm(in, out, bit, 2, 2);
1383   round_shift_32_8xn_avx2(out, 16, shift[1], 1);
1384   fwd_txfm_transpose_8x8_avx2(out, in, 2, 1);
1385   fwd_txfm_transpose_8x8_avx2(&out[1], &in[8], 2, 1);
1386   row_txfm(in, out, bit, 1, 1);
1387   round_shift_rect_array_32_avx2(out, out, 16, -shift[2], NewSqrt2);
1388   store_buffer_avx2(out, coeff, 8, 16);
1389   (void)bd;
1390 }
av1_fwd_txfm2d_16x16_avx2(const int16_t * input,int32_t * coeff,int stride,TX_TYPE tx_type,int bd)1391 void av1_fwd_txfm2d_16x16_avx2(const int16_t *input, int32_t *coeff, int stride,
1392                                TX_TYPE tx_type, int bd) {
1393   __m256i in[32], out[32];
1394   const TX_SIZE tx_size = TX_16X16;
1395   const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
1396   const int txw_idx = get_txw_idx(tx_size);
1397   const int txh_idx = get_txh_idx(tx_size);
1398   const int width = tx_size_wide[tx_size];
1399   const int height = tx_size_high[tx_size];
1400   const int width_div8 = (width >> 3);
1401   const int width_div16 = (width >> 4);
1402   const int size = (height << 1);
1403   switch (tx_type) {
1404     case DCT_DCT:
1405       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1406       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1407       fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1408                   width_div8);
1409       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1410       fwd_txfm_transpose_16x16_avx2(out, in);
1411       fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1412                   width_div8);
1413       store_buffer_avx2(out, coeff, 8, 32);
1414       break;
1415     case ADST_DCT:
1416       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1417       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1418       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1419                    width_div8);
1420       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1421       fwd_txfm_transpose_16x16_avx2(out, in);
1422       fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1423                   width_div8);
1424       store_buffer_avx2(out, coeff, 8, 32);
1425       break;
1426     case DCT_ADST:
1427       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1428       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1429       fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1430                   width_div8);
1431       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1432       fwd_txfm_transpose_16x16_avx2(out, in);
1433       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1434                    width_div8);
1435       store_buffer_avx2(out, coeff, 8, 32);
1436       break;
1437     case ADST_ADST:
1438       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1439       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1440       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1441                    width_div8);
1442       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1443       fwd_txfm_transpose_16x16_avx2(out, in);
1444       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1445                    width_div8);
1446       store_buffer_avx2(out, coeff, 8, 32);
1447       break;
1448     case FLIPADST_DCT:
1449       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
1450       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1451       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1452                    width_div8);
1453       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1454       fwd_txfm_transpose_16x16_avx2(out, in);
1455       fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1456                   width_div8);
1457       store_buffer_avx2(out, coeff, 8, 32);
1458       break;
1459     case DCT_FLIPADST:
1460       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
1461       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1462       fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1463                   width_div8);
1464       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1465       fwd_txfm_transpose_16x16_avx2(out, in);
1466       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1467                    width_div8);
1468       store_buffer_avx2(out, coeff, 8, 32);
1469       break;
1470     case FLIPADST_FLIPADST:
1471       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 1);
1472       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1473       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1474                    width_div8);
1475       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1476       fwd_txfm_transpose_16x16_avx2(out, in);
1477       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1478                    width_div8);
1479       store_buffer_avx2(out, coeff, 8, 32);
1480       break;
1481     case ADST_FLIPADST:
1482       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
1483       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1484       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1485                    width_div8);
1486       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1487       fwd_txfm_transpose_16x16_avx2(out, in);
1488       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1489                    width_div8);
1490       store_buffer_avx2(out, coeff, 8, 32);
1491       break;
1492     case FLIPADST_ADST:
1493       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
1494       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1495       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1496                    width_div8);
1497       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1498       fwd_txfm_transpose_16x16_avx2(out, in);
1499       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1500                    width_div8);
1501       store_buffer_avx2(out, coeff, 8, 32);
1502       break;
1503     case IDTX:
1504       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1505       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1506       idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1507                   width_div8);
1508       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1509       fwd_txfm_transpose_16x16_avx2(out, in);
1510       idtx16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1511                   width_div8);
1512       store_buffer_avx2(out, coeff, 8, 32);
1513       break;
1514     case V_DCT:
1515       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1516       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1517       fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1518                   width_div8);
1519       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1520       fwd_txfm_transpose_16x16_avx2(out, in);
1521       idtx16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1522                   width_div8);
1523       store_buffer_avx2(out, coeff, 8, 32);
1524       break;
1525     case H_DCT:
1526       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1527       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1528       idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1529                   width_div8);
1530       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1531       fwd_txfm_transpose_16x16_avx2(out, in);
1532       fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1533                   width_div8);
1534       store_buffer_avx2(out, coeff, 8, 32);
1535       break;
1536     case V_ADST:
1537       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1538       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1539       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1540                    width_div8);
1541       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1542       fwd_txfm_transpose_16x16_avx2(out, in);
1543       idtx16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1544                   width_div8);
1545       store_buffer_avx2(out, coeff, 8, 32);
1546       break;
1547     case H_ADST:
1548       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
1549       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1550       idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1551                   width_div8);
1552       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1553       fwd_txfm_transpose_16x16_avx2(out, in);
1554       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1555                    width_div8);
1556       store_buffer_avx2(out, coeff, 8, 32);
1557       break;
1558     case V_FLIPADST:
1559       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
1560       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1561       fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1562                    width_div8);
1563       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1564       fwd_txfm_transpose_16x16_avx2(out, in);
1565       idtx16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1566                   width_div8);
1567       store_buffer_avx2(out, coeff, 8, 32);
1568       break;
1569     case H_FLIPADST:
1570       load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
1571       round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
1572       idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
1573                   width_div8);
1574       round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
1575       fwd_txfm_transpose_16x16_avx2(out, in);
1576       fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
1577                    width_div8);
1578       store_buffer_avx2(out, coeff, 8, 32);
1579       break;
1580     default: assert(0);
1581   }
1582   (void)bd;
1583 }
fdct32_avx2(__m256i * input,__m256i * output,const int8_t cos_bit,const int instride,const int outstride)1584 static inline void fdct32_avx2(__m256i *input, __m256i *output,
1585                                const int8_t cos_bit, const int instride,
1586                                const int outstride) {
1587   __m256i buf0[32];
1588   __m256i buf1[32];
1589   const int32_t *cospi;
1590   int startidx = 0 * instride;
1591   int endidx = 31 * instride;
1592   // stage 0
1593   // stage 1
1594   buf1[0] = _mm256_add_epi32(input[startidx], input[endidx]);
1595   buf1[31] = _mm256_sub_epi32(input[startidx], input[endidx]);
1596   startidx += instride;
1597   endidx -= instride;
1598   buf1[1] = _mm256_add_epi32(input[startidx], input[endidx]);
1599   buf1[30] = _mm256_sub_epi32(input[startidx], input[endidx]);
1600   startidx += instride;
1601   endidx -= instride;
1602   buf1[2] = _mm256_add_epi32(input[startidx], input[endidx]);
1603   buf1[29] = _mm256_sub_epi32(input[startidx], input[endidx]);
1604   startidx += instride;
1605   endidx -= instride;
1606   buf1[3] = _mm256_add_epi32(input[startidx], input[endidx]);
1607   buf1[28] = _mm256_sub_epi32(input[startidx], input[endidx]);
1608   startidx += instride;
1609   endidx -= instride;
1610   buf1[4] = _mm256_add_epi32(input[startidx], input[endidx]);
1611   buf1[27] = _mm256_sub_epi32(input[startidx], input[endidx]);
1612   startidx += instride;
1613   endidx -= instride;
1614   buf1[5] = _mm256_add_epi32(input[startidx], input[endidx]);
1615   buf1[26] = _mm256_sub_epi32(input[startidx], input[endidx]);
1616   startidx += instride;
1617   endidx -= instride;
1618   buf1[6] = _mm256_add_epi32(input[startidx], input[endidx]);
1619   buf1[25] = _mm256_sub_epi32(input[startidx], input[endidx]);
1620   startidx += instride;
1621   endidx -= instride;
1622   buf1[7] = _mm256_add_epi32(input[startidx], input[endidx]);
1623   buf1[24] = _mm256_sub_epi32(input[startidx], input[endidx]);
1624   startidx += instride;
1625   endidx -= instride;
1626   buf1[8] = _mm256_add_epi32(input[startidx], input[endidx]);
1627   buf1[23] = _mm256_sub_epi32(input[startidx], input[endidx]);
1628   startidx += instride;
1629   endidx -= instride;
1630   buf1[9] = _mm256_add_epi32(input[startidx], input[endidx]);
1631   buf1[22] = _mm256_sub_epi32(input[startidx], input[endidx]);
1632   startidx += instride;
1633   endidx -= instride;
1634   buf1[10] = _mm256_add_epi32(input[startidx], input[endidx]);
1635   buf1[21] = _mm256_sub_epi32(input[startidx], input[endidx]);
1636   startidx += instride;
1637   endidx -= instride;
1638   buf1[11] = _mm256_add_epi32(input[startidx], input[endidx]);
1639   buf1[20] = _mm256_sub_epi32(input[startidx], input[endidx]);
1640   startidx += instride;
1641   endidx -= instride;
1642   buf1[12] = _mm256_add_epi32(input[startidx], input[endidx]);
1643   buf1[19] = _mm256_sub_epi32(input[startidx], input[endidx]);
1644   startidx += instride;
1645   endidx -= instride;
1646   buf1[13] = _mm256_add_epi32(input[startidx], input[endidx]);
1647   buf1[18] = _mm256_sub_epi32(input[startidx], input[endidx]);
1648   startidx += instride;
1649   endidx -= instride;
1650   buf1[14] = _mm256_add_epi32(input[startidx], input[endidx]);
1651   buf1[17] = _mm256_sub_epi32(input[startidx], input[endidx]);
1652   startidx += instride;
1653   endidx -= instride;
1654   buf1[15] = _mm256_add_epi32(input[startidx], input[endidx]);
1655   buf1[16] = _mm256_sub_epi32(input[startidx], input[endidx]);
1656 
1657   // stage 2
1658   cospi = cospi_arr(cos_bit);
1659   buf0[0] = _mm256_add_epi32(buf1[0], buf1[15]);
1660   buf0[15] = _mm256_sub_epi32(buf1[0], buf1[15]);
1661   buf0[1] = _mm256_add_epi32(buf1[1], buf1[14]);
1662   buf0[14] = _mm256_sub_epi32(buf1[1], buf1[14]);
1663   buf0[2] = _mm256_add_epi32(buf1[2], buf1[13]);
1664   buf0[13] = _mm256_sub_epi32(buf1[2], buf1[13]);
1665   buf0[3] = _mm256_add_epi32(buf1[3], buf1[12]);
1666   buf0[12] = _mm256_sub_epi32(buf1[3], buf1[12]);
1667   buf0[4] = _mm256_add_epi32(buf1[4], buf1[11]);
1668   buf0[11] = _mm256_sub_epi32(buf1[4], buf1[11]);
1669   buf0[5] = _mm256_add_epi32(buf1[5], buf1[10]);
1670   buf0[10] = _mm256_sub_epi32(buf1[5], buf1[10]);
1671   buf0[6] = _mm256_add_epi32(buf1[6], buf1[9]);
1672   buf0[9] = _mm256_sub_epi32(buf1[6], buf1[9]);
1673   buf0[7] = _mm256_add_epi32(buf1[7], buf1[8]);
1674   buf0[8] = _mm256_sub_epi32(buf1[7], buf1[8]);
1675   buf0[16] = buf1[16];
1676   buf0[17] = buf1[17];
1677   buf0[18] = buf1[18];
1678   buf0[19] = buf1[19];
1679   btf_32_avx2_type0(-cospi[32], cospi[32], buf1[20], buf1[27], buf0[20],
1680                     buf0[27], cos_bit);
1681   btf_32_avx2_type0(-cospi[32], cospi[32], buf1[21], buf1[26], buf0[21],
1682                     buf0[26], cos_bit);
1683   btf_32_avx2_type0(-cospi[32], cospi[32], buf1[22], buf1[25], buf0[22],
1684                     buf0[25], cos_bit);
1685   btf_32_avx2_type0(-cospi[32], cospi[32], buf1[23], buf1[24], buf0[23],
1686                     buf0[24], cos_bit);
1687   buf0[28] = buf1[28];
1688   buf0[29] = buf1[29];
1689   buf0[30] = buf1[30];
1690   buf0[31] = buf1[31];
1691 
1692   // stage 3
1693   cospi = cospi_arr(cos_bit);
1694   buf1[0] = _mm256_add_epi32(buf0[0], buf0[7]);
1695   buf1[7] = _mm256_sub_epi32(buf0[0], buf0[7]);
1696   buf1[1] = _mm256_add_epi32(buf0[1], buf0[6]);
1697   buf1[6] = _mm256_sub_epi32(buf0[1], buf0[6]);
1698   buf1[2] = _mm256_add_epi32(buf0[2], buf0[5]);
1699   buf1[5] = _mm256_sub_epi32(buf0[2], buf0[5]);
1700   buf1[3] = _mm256_add_epi32(buf0[3], buf0[4]);
1701   buf1[4] = _mm256_sub_epi32(buf0[3], buf0[4]);
1702   buf1[8] = buf0[8];
1703   buf1[9] = buf0[9];
1704   btf_32_avx2_type0(-cospi[32], cospi[32], buf0[10], buf0[13], buf1[10],
1705                     buf1[13], cos_bit);
1706   btf_32_avx2_type0(-cospi[32], cospi[32], buf0[11], buf0[12], buf1[11],
1707                     buf1[12], cos_bit);
1708   buf1[14] = buf0[14];
1709   buf1[15] = buf0[15];
1710   buf1[16] = _mm256_add_epi32(buf0[16], buf0[23]);
1711   buf1[23] = _mm256_sub_epi32(buf0[16], buf0[23]);
1712   buf1[17] = _mm256_add_epi32(buf0[17], buf0[22]);
1713   buf1[22] = _mm256_sub_epi32(buf0[17], buf0[22]);
1714   buf1[18] = _mm256_add_epi32(buf0[18], buf0[21]);
1715   buf1[21] = _mm256_sub_epi32(buf0[18], buf0[21]);
1716   buf1[19] = _mm256_add_epi32(buf0[19], buf0[20]);
1717   buf1[20] = _mm256_sub_epi32(buf0[19], buf0[20]);
1718   buf1[24] = _mm256_sub_epi32(buf0[31], buf0[24]);
1719   buf1[31] = _mm256_add_epi32(buf0[31], buf0[24]);
1720   buf1[25] = _mm256_sub_epi32(buf0[30], buf0[25]);
1721   buf1[30] = _mm256_add_epi32(buf0[30], buf0[25]);
1722   buf1[26] = _mm256_sub_epi32(buf0[29], buf0[26]);
1723   buf1[29] = _mm256_add_epi32(buf0[29], buf0[26]);
1724   buf1[27] = _mm256_sub_epi32(buf0[28], buf0[27]);
1725   buf1[28] = _mm256_add_epi32(buf0[28], buf0[27]);
1726 
1727   // stage 4
1728   cospi = cospi_arr(cos_bit);
1729   buf0[0] = _mm256_add_epi32(buf1[0], buf1[3]);
1730   buf0[3] = _mm256_sub_epi32(buf1[0], buf1[3]);
1731   buf0[1] = _mm256_add_epi32(buf1[1], buf1[2]);
1732   buf0[2] = _mm256_sub_epi32(buf1[1], buf1[2]);
1733   buf0[4] = buf1[4];
1734   btf_32_avx2_type0(-cospi[32], cospi[32], buf1[5], buf1[6], buf0[5], buf0[6],
1735                     cos_bit);
1736   buf0[7] = buf1[7];
1737   buf0[8] = _mm256_add_epi32(buf1[8], buf1[11]);
1738   buf0[11] = _mm256_sub_epi32(buf1[8], buf1[11]);
1739   buf0[9] = _mm256_add_epi32(buf1[9], buf1[10]);
1740   buf0[10] = _mm256_sub_epi32(buf1[9], buf1[10]);
1741   buf0[12] = _mm256_sub_epi32(buf1[15], buf1[12]);
1742   buf0[15] = _mm256_add_epi32(buf1[15], buf1[12]);
1743   buf0[13] = _mm256_sub_epi32(buf1[14], buf1[13]);
1744   buf0[14] = _mm256_add_epi32(buf1[14], buf1[13]);
1745   buf0[16] = buf1[16];
1746   buf0[17] = buf1[17];
1747   btf_32_avx2_type0(-cospi[16], cospi[48], buf1[18], buf1[29], buf0[18],
1748                     buf0[29], cos_bit);
1749   btf_32_avx2_type0(-cospi[16], cospi[48], buf1[19], buf1[28], buf0[19],
1750                     buf0[28], cos_bit);
1751   btf_32_avx2_type0(-cospi[48], -cospi[16], buf1[20], buf1[27], buf0[20],
1752                     buf0[27], cos_bit);
1753   btf_32_avx2_type0(-cospi[48], -cospi[16], buf1[21], buf1[26], buf0[21],
1754                     buf0[26], cos_bit);
1755   buf0[22] = buf1[22];
1756   buf0[23] = buf1[23];
1757   buf0[24] = buf1[24];
1758   buf0[25] = buf1[25];
1759   buf0[30] = buf1[30];
1760   buf0[31] = buf1[31];
1761 
1762   // stage 5
1763   cospi = cospi_arr(cos_bit);
1764   btf_32_avx2_type0(cospi[32], cospi[32], buf0[0], buf0[1], buf1[0], buf1[1],
1765                     cos_bit);
1766   btf_32_avx2_type0(cospi[16], cospi[48], buf0[3], buf0[2], buf1[2], buf1[3],
1767                     cos_bit);
1768   buf1[4] = _mm256_add_epi32(buf0[4], buf0[5]);
1769   buf1[5] = _mm256_sub_epi32(buf0[4], buf0[5]);
1770   buf1[6] = _mm256_sub_epi32(buf0[7], buf0[6]);
1771   buf1[7] = _mm256_add_epi32(buf0[7], buf0[6]);
1772   buf1[8] = buf0[8];
1773   btf_32_avx2_type0(-cospi[16], cospi[48], buf0[9], buf0[14], buf1[9], buf1[14],
1774                     cos_bit);
1775   btf_32_avx2_type0(-cospi[48], -cospi[16], buf0[10], buf0[13], buf1[10],
1776                     buf1[13], cos_bit);
1777   buf1[11] = buf0[11];
1778   buf1[12] = buf0[12];
1779   buf1[15] = buf0[15];
1780   buf1[16] = _mm256_add_epi32(buf0[16], buf0[19]);
1781   buf1[19] = _mm256_sub_epi32(buf0[16], buf0[19]);
1782   buf1[17] = _mm256_add_epi32(buf0[17], buf0[18]);
1783   buf1[18] = _mm256_sub_epi32(buf0[17], buf0[18]);
1784   buf1[20] = _mm256_sub_epi32(buf0[23], buf0[20]);
1785   buf1[23] = _mm256_add_epi32(buf0[23], buf0[20]);
1786   buf1[21] = _mm256_sub_epi32(buf0[22], buf0[21]);
1787   buf1[22] = _mm256_add_epi32(buf0[22], buf0[21]);
1788   buf1[24] = _mm256_add_epi32(buf0[24], buf0[27]);
1789   buf1[27] = _mm256_sub_epi32(buf0[24], buf0[27]);
1790   buf1[25] = _mm256_add_epi32(buf0[25], buf0[26]);
1791   buf1[26] = _mm256_sub_epi32(buf0[25], buf0[26]);
1792   buf1[28] = _mm256_sub_epi32(buf0[31], buf0[28]);
1793   buf1[31] = _mm256_add_epi32(buf0[31], buf0[28]);
1794   buf1[29] = _mm256_sub_epi32(buf0[30], buf0[29]);
1795   buf1[30] = _mm256_add_epi32(buf0[30], buf0[29]);
1796 
1797   // stage 6
1798   cospi = cospi_arr(cos_bit);
1799   buf0[0] = buf1[0];
1800   buf0[1] = buf1[1];
1801   buf0[2] = buf1[2];
1802   buf0[3] = buf1[3];
1803   btf_32_avx2_type0(cospi[8], cospi[56], buf1[7], buf1[4], buf0[4], buf0[7],
1804                     cos_bit);
1805   btf_32_avx2_type0(cospi[40], cospi[24], buf1[6], buf1[5], buf0[5], buf0[6],
1806                     cos_bit);
1807   buf0[8] = _mm256_add_epi32(buf1[8], buf1[9]);
1808   buf0[9] = _mm256_sub_epi32(buf1[8], buf1[9]);
1809   buf0[10] = _mm256_sub_epi32(buf1[11], buf1[10]);
1810   buf0[11] = _mm256_add_epi32(buf1[11], buf1[10]);
1811   buf0[12] = _mm256_add_epi32(buf1[12], buf1[13]);
1812   buf0[13] = _mm256_sub_epi32(buf1[12], buf1[13]);
1813   buf0[14] = _mm256_sub_epi32(buf1[15], buf1[14]);
1814   buf0[15] = _mm256_add_epi32(buf1[15], buf1[14]);
1815   buf0[16] = buf1[16];
1816   btf_32_avx2_type0(-cospi[8], cospi[56], buf1[17], buf1[30], buf0[17],
1817                     buf0[30], cos_bit);
1818   btf_32_avx2_type0(-cospi[56], -cospi[8], buf1[18], buf1[29], buf0[18],
1819                     buf0[29], cos_bit);
1820   buf0[19] = buf1[19];
1821   buf0[20] = buf1[20];
1822   btf_32_avx2_type0(-cospi[40], cospi[24], buf1[21], buf1[26], buf0[21],
1823                     buf0[26], cos_bit);
1824   btf_32_avx2_type0(-cospi[24], -cospi[40], buf1[22], buf1[25], buf0[22],
1825                     buf0[25], cos_bit);
1826   buf0[23] = buf1[23];
1827   buf0[24] = buf1[24];
1828   buf0[27] = buf1[27];
1829   buf0[28] = buf1[28];
1830   buf0[31] = buf1[31];
1831 
1832   // stage 7
1833   cospi = cospi_arr(cos_bit);
1834   buf1[0] = buf0[0];
1835   buf1[1] = buf0[1];
1836   buf1[2] = buf0[2];
1837   buf1[3] = buf0[3];
1838   buf1[4] = buf0[4];
1839   buf1[5] = buf0[5];
1840   buf1[6] = buf0[6];
1841   buf1[7] = buf0[7];
1842   btf_32_avx2_type0(cospi[4], cospi[60], buf0[15], buf0[8], buf1[8], buf1[15],
1843                     cos_bit);
1844   btf_32_avx2_type0(cospi[36], cospi[28], buf0[14], buf0[9], buf1[9], buf1[14],
1845                     cos_bit);
1846   btf_32_avx2_type0(cospi[20], cospi[44], buf0[13], buf0[10], buf1[10],
1847                     buf1[13], cos_bit);
1848   btf_32_avx2_type0(cospi[52], cospi[12], buf0[12], buf0[11], buf1[11],
1849                     buf1[12], cos_bit);
1850   buf1[16] = _mm256_add_epi32(buf0[16], buf0[17]);
1851   buf1[17] = _mm256_sub_epi32(buf0[16], buf0[17]);
1852   buf1[18] = _mm256_sub_epi32(buf0[19], buf0[18]);
1853   buf1[19] = _mm256_add_epi32(buf0[19], buf0[18]);
1854   buf1[20] = _mm256_add_epi32(buf0[20], buf0[21]);
1855   buf1[21] = _mm256_sub_epi32(buf0[20], buf0[21]);
1856   buf1[22] = _mm256_sub_epi32(buf0[23], buf0[22]);
1857   buf1[23] = _mm256_add_epi32(buf0[23], buf0[22]);
1858   buf1[24] = _mm256_add_epi32(buf0[24], buf0[25]);
1859   buf1[25] = _mm256_sub_epi32(buf0[24], buf0[25]);
1860   buf1[26] = _mm256_sub_epi32(buf0[27], buf0[26]);
1861   buf1[27] = _mm256_add_epi32(buf0[27], buf0[26]);
1862   buf1[28] = _mm256_add_epi32(buf0[28], buf0[29]);
1863   buf1[29] = _mm256_sub_epi32(buf0[28], buf0[29]);
1864   buf1[30] = _mm256_sub_epi32(buf0[31], buf0[30]);
1865   buf1[31] = _mm256_add_epi32(buf0[31], buf0[30]);
1866 
1867   // stage 8
1868   cospi = cospi_arr(cos_bit);
1869   buf0[0] = buf1[0];
1870   buf0[1] = buf1[1];
1871   buf0[2] = buf1[2];
1872   buf0[3] = buf1[3];
1873   buf0[4] = buf1[4];
1874   buf0[5] = buf1[5];
1875   buf0[6] = buf1[6];
1876   buf0[7] = buf1[7];
1877   buf0[8] = buf1[8];
1878   buf0[9] = buf1[9];
1879   buf0[10] = buf1[10];
1880   buf0[11] = buf1[11];
1881   buf0[12] = buf1[12];
1882   buf0[13] = buf1[13];
1883   buf0[14] = buf1[14];
1884   buf0[15] = buf1[15];
1885   btf_32_avx2_type0(cospi[2], cospi[62], buf1[31], buf1[16], buf0[16], buf0[31],
1886                     cos_bit);
1887   btf_32_avx2_type0(cospi[34], cospi[30], buf1[30], buf1[17], buf0[17],
1888                     buf0[30], cos_bit);
1889   btf_32_avx2_type0(cospi[18], cospi[46], buf1[29], buf1[18], buf0[18],
1890                     buf0[29], cos_bit);
1891   btf_32_avx2_type0(cospi[50], cospi[14], buf1[28], buf1[19], buf0[19],
1892                     buf0[28], cos_bit);
1893   btf_32_avx2_type0(cospi[10], cospi[54], buf1[27], buf1[20], buf0[20],
1894                     buf0[27], cos_bit);
1895   btf_32_avx2_type0(cospi[42], cospi[22], buf1[26], buf1[21], buf0[21],
1896                     buf0[26], cos_bit);
1897   btf_32_avx2_type0(cospi[26], cospi[38], buf1[25], buf1[22], buf0[22],
1898                     buf0[25], cos_bit);
1899   btf_32_avx2_type0(cospi[58], cospi[6], buf1[24], buf1[23], buf0[23], buf0[24],
1900                     cos_bit);
1901 
1902   startidx = 0 * outstride;
1903   endidx = 31 * outstride;
1904   // stage 9
1905   output[startidx] = buf0[0];
1906   output[endidx] = buf0[31];
1907   startidx += outstride;
1908   endidx -= outstride;
1909   output[startidx] = buf0[16];
1910   output[endidx] = buf0[15];
1911   startidx += outstride;
1912   endidx -= outstride;
1913   output[startidx] = buf0[8];
1914   output[endidx] = buf0[23];
1915   startidx += outstride;
1916   endidx -= outstride;
1917   output[startidx] = buf0[24];
1918   output[endidx] = buf0[7];
1919   startidx += outstride;
1920   endidx -= outstride;
1921   output[startidx] = buf0[4];
1922   output[endidx] = buf0[27];
1923   startidx += outstride;
1924   endidx -= outstride;
1925   output[startidx] = buf0[20];
1926   output[endidx] = buf0[11];
1927   startidx += outstride;
1928   endidx -= outstride;
1929   output[startidx] = buf0[12];
1930   output[endidx] = buf0[19];
1931   startidx += outstride;
1932   endidx -= outstride;
1933   output[startidx] = buf0[28];
1934   output[endidx] = buf0[3];
1935   startidx += outstride;
1936   endidx -= outstride;
1937   output[startidx] = buf0[2];
1938   output[endidx] = buf0[29];
1939   startidx += outstride;
1940   endidx -= outstride;
1941   output[startidx] = buf0[18];
1942   output[endidx] = buf0[13];
1943   startidx += outstride;
1944   endidx -= outstride;
1945   output[startidx] = buf0[10];
1946   output[endidx] = buf0[21];
1947   startidx += outstride;
1948   endidx -= outstride;
1949   output[startidx] = buf0[26];
1950   output[endidx] = buf0[5];
1951   startidx += outstride;
1952   endidx -= outstride;
1953   output[startidx] = buf0[6];
1954   output[endidx] = buf0[25];
1955   startidx += outstride;
1956   endidx -= outstride;
1957   output[startidx] = buf0[22];
1958   output[endidx] = buf0[9];
1959   startidx += outstride;
1960   endidx -= outstride;
1961   output[startidx] = buf0[14];
1962   output[endidx] = buf0[17];
1963   startidx += outstride;
1964   endidx -= outstride;
1965   output[startidx] = buf0[30];
1966   output[endidx] = buf0[1];
1967 }
idtx32x32_avx2(__m256i * input,__m256i * output,const int8_t cos_bit,int instride,int outstride)1968 static inline void idtx32x32_avx2(__m256i *input, __m256i *output,
1969                                   const int8_t cos_bit, int instride,
1970                                   int outstride) {
1971   (void)cos_bit;
1972   for (int i = 0; i < 32; i += 8) {
1973     output[i * outstride] = _mm256_slli_epi32(input[i * instride], 2);
1974     output[(i + 1) * outstride] =
1975         _mm256_slli_epi32(input[(i + 1) * instride], 2);
1976     output[(i + 2) * outstride] =
1977         _mm256_slli_epi32(input[(i + 2) * instride], 2);
1978     output[(i + 3) * outstride] =
1979         _mm256_slli_epi32(input[(i + 3) * instride], 2);
1980     output[(i + 4) * outstride] =
1981         _mm256_slli_epi32(input[(i + 4) * instride], 2);
1982     output[(i + 5) * outstride] =
1983         _mm256_slli_epi32(input[(i + 5) * instride], 2);
1984     output[(i + 6) * outstride] =
1985         _mm256_slli_epi32(input[(i + 6) * instride], 2);
1986     output[(i + 7) * outstride] =
1987         _mm256_slli_epi32(input[(i + 7) * instride], 2);
1988   }
1989 }
1990 static const transform_1d_avx2 col_txfm8x32_arr[TX_TYPES] = {
1991   fdct32_avx2,     // DCT_DCT
1992   NULL,            // ADST_DCT
1993   NULL,            // DCT_ADST
1994   NULL,            // ADST_ADST
1995   NULL,            // FLIPADST_DCT
1996   NULL,            // DCT_FLIPADST
1997   NULL,            // FLIPADST_FLIPADST
1998   NULL,            // ADST_FLIPADST
1999   NULL,            // FLIPADST_ADST
2000   idtx32x32_avx2,  // IDTX
2001   NULL,            // V_DCT
2002   NULL,            // H_DCT
2003   NULL,            // V_ADST
2004   NULL,            // H_ADST
2005   NULL,            // V_FLIPADST
2006   NULL             // H_FLIPADST
2007 };
2008 static const transform_1d_avx2 row_txfm8x32_arr[TX_TYPES] = {
2009   fdct32_avx2,     // DCT_DCT
2010   NULL,            // ADST_DCT
2011   NULL,            // DCT_ADST
2012   NULL,            // ADST_ADST
2013   NULL,            // FLIPADST_DCT
2014   NULL,            // DCT_FLIPADST
2015   NULL,            // FLIPADST_FLIPADST
2016   NULL,            // ADST_FLIPADST
2017   NULL,            // FLIPADST_ADST
2018   idtx32x32_avx2,  // IDTX
2019   NULL,            // V_DCT
2020   NULL,            // H_DCT
2021   NULL,            // V_ADST
2022   NULL,            // H_ADST
2023   NULL,            // V_FLIPADST
2024   NULL             // H_FLIPADST
2025 };
av1_fwd_txfm2d_32x32_avx2(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)2026 void av1_fwd_txfm2d_32x32_avx2(const int16_t *input, int32_t *output,
2027                                int stride, TX_TYPE tx_type, int bd) {
2028   (void)bd;
2029   __m256i buf0[128], buf1[128];
2030   const int tx_size = TX_32X32;
2031   const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
2032   const int txw_idx = get_txw_idx(tx_size);
2033   const int txh_idx = get_txh_idx(tx_size);
2034   const int cos_bit_col = av1_fwd_cos_bit_col[txw_idx][txh_idx];
2035   const int cos_bit_row = av1_fwd_cos_bit_row[txw_idx][txh_idx];
2036   const int width = tx_size_wide[tx_size];
2037   const int height = tx_size_high[tx_size];
2038   const transform_1d_avx2 col_txfm = col_txfm8x32_arr[tx_type];
2039   const transform_1d_avx2 row_txfm = row_txfm8x32_arr[tx_type];
2040   int r, c;
2041   const int width_div16 = (width >> 4);
2042   const int width_div8 = (width >> 3);
2043 
2044   for (int i = 0; i < width_div16; i++) {
2045     load_buffer_16xn_avx2(input + (i << 4), &buf0[(i << 1)], stride, height,
2046                           width_div8, 0, 0);
2047     round_shift_32_8xn_avx2(&buf0[(i << 1)], height, shift[0], width_div8);
2048     round_shift_32_8xn_avx2(&buf0[(i << 1) + 1], height, shift[0], width_div8);
2049     col_txfm(&buf0[(i << 1)], &buf0[(i << 1)], cos_bit_col, width_div8,
2050              width_div8);
2051     col_txfm(&buf0[(i << 1) + 1], &buf0[(i << 1) + 1], cos_bit_col, width_div8,
2052              width_div8);
2053     round_shift_32_8xn_avx2(&buf0[(i << 1)], height, shift[1], width_div8);
2054     round_shift_32_8xn_avx2(&buf0[(i << 1) + 1], height, shift[1], width_div8);
2055   }
2056 
2057   for (r = 0; r < height; r += 8) {
2058     for (c = 0; c < width_div8; c++) {
2059       fwd_txfm_transpose_8x8_avx2(&buf0[r * width_div8 + c],
2060                                   &buf1[c * 8 * width_div8 + (r >> 3)],
2061                                   width_div8, width_div8);
2062     }
2063   }
2064 
2065   for (int i = 0; i < width_div16; i++) {
2066     row_txfm(&buf1[(i << 1)], &buf1[(i << 1)], cos_bit_row, width_div8,
2067              width_div8);
2068     row_txfm(&buf1[(i << 1) + 1], &buf1[(i << 1) + 1], cos_bit_row, width_div8,
2069              width_div8);
2070     round_shift_32_8xn_avx2(&buf1[(i << 1)], height, shift[2], width_div8);
2071     round_shift_32_8xn_avx2(&buf1[(i << 1) + 1], height, shift[2], width_div8);
2072   }
2073 
2074   store_buffer_avx2(buf1, output, 8, 128);
2075 }
fdct64_stage2_avx2(__m256i * x1,__m256i * x2,__m256i * cospi_m32,__m256i * cospi_p32,const __m256i * __rounding,int8_t cos_bit)2076 static inline void fdct64_stage2_avx2(__m256i *x1, __m256i *x2,
2077                                       __m256i *cospi_m32, __m256i *cospi_p32,
2078                                       const __m256i *__rounding,
2079                                       int8_t cos_bit) {
2080   x2[0] = _mm256_add_epi32(x1[0], x1[31]);
2081   x2[31] = _mm256_sub_epi32(x1[0], x1[31]);
2082   x2[1] = _mm256_add_epi32(x1[1], x1[30]);
2083   x2[30] = _mm256_sub_epi32(x1[1], x1[30]);
2084   x2[2] = _mm256_add_epi32(x1[2], x1[29]);
2085   x2[29] = _mm256_sub_epi32(x1[2], x1[29]);
2086   x2[3] = _mm256_add_epi32(x1[3], x1[28]);
2087   x2[28] = _mm256_sub_epi32(x1[3], x1[28]);
2088   x2[4] = _mm256_add_epi32(x1[4], x1[27]);
2089   x2[27] = _mm256_sub_epi32(x1[4], x1[27]);
2090   x2[5] = _mm256_add_epi32(x1[5], x1[26]);
2091   x2[26] = _mm256_sub_epi32(x1[5], x1[26]);
2092   x2[6] = _mm256_add_epi32(x1[6], x1[25]);
2093   x2[25] = _mm256_sub_epi32(x1[6], x1[25]);
2094   x2[7] = _mm256_add_epi32(x1[7], x1[24]);
2095   x2[24] = _mm256_sub_epi32(x1[7], x1[24]);
2096   x2[8] = _mm256_add_epi32(x1[8], x1[23]);
2097   x2[23] = _mm256_sub_epi32(x1[8], x1[23]);
2098   x2[9] = _mm256_add_epi32(x1[9], x1[22]);
2099   x2[22] = _mm256_sub_epi32(x1[9], x1[22]);
2100   x2[10] = _mm256_add_epi32(x1[10], x1[21]);
2101   x2[21] = _mm256_sub_epi32(x1[10], x1[21]);
2102   x2[11] = _mm256_add_epi32(x1[11], x1[20]);
2103   x2[20] = _mm256_sub_epi32(x1[11], x1[20]);
2104   x2[12] = _mm256_add_epi32(x1[12], x1[19]);
2105   x2[19] = _mm256_sub_epi32(x1[12], x1[19]);
2106   x2[13] = _mm256_add_epi32(x1[13], x1[18]);
2107   x2[18] = _mm256_sub_epi32(x1[13], x1[18]);
2108   x2[14] = _mm256_add_epi32(x1[14], x1[17]);
2109   x2[17] = _mm256_sub_epi32(x1[14], x1[17]);
2110   x2[15] = _mm256_add_epi32(x1[15], x1[16]);
2111   x2[16] = _mm256_sub_epi32(x1[15], x1[16]);
2112   x2[32] = x1[32];
2113   x2[33] = x1[33];
2114   x2[34] = x1[34];
2115   x2[35] = x1[35];
2116   x2[36] = x1[36];
2117   x2[37] = x1[37];
2118   x2[38] = x1[38];
2119   x2[39] = x1[39];
2120   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[40], x1[55], x2[40], x2[55],
2121                         *__rounding, cos_bit);
2122   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[41], x1[54], x2[41], x2[54],
2123                         *__rounding, cos_bit);
2124   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[42], x1[53], x2[42], x2[53],
2125                         *__rounding, cos_bit);
2126   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[43], x1[52], x2[43], x2[52],
2127                         *__rounding, cos_bit);
2128   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[44], x1[51], x2[44], x2[51],
2129                         *__rounding, cos_bit);
2130   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[45], x1[50], x2[45], x2[50],
2131                         *__rounding, cos_bit);
2132   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[46], x1[49], x2[46], x2[49],
2133                         *__rounding, cos_bit);
2134   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x1[47], x1[48], x2[47], x2[48],
2135                         *__rounding, cos_bit);
2136   x2[56] = x1[56];
2137   x2[57] = x1[57];
2138   x2[58] = x1[58];
2139   x2[59] = x1[59];
2140   x2[60] = x1[60];
2141   x2[61] = x1[61];
2142   x2[62] = x1[62];
2143   x2[63] = x1[63];
2144 }
fdct64_stage3_avx2(__m256i * x2,__m256i * x3,__m256i * cospi_m32,__m256i * cospi_p32,const __m256i * __rounding,int8_t cos_bit)2145 static inline void fdct64_stage3_avx2(__m256i *x2, __m256i *x3,
2146                                       __m256i *cospi_m32, __m256i *cospi_p32,
2147                                       const __m256i *__rounding,
2148                                       int8_t cos_bit) {
2149   x3[0] = _mm256_add_epi32(x2[0], x2[15]);
2150   x3[15] = _mm256_sub_epi32(x2[0], x2[15]);
2151   x3[1] = _mm256_add_epi32(x2[1], x2[14]);
2152   x3[14] = _mm256_sub_epi32(x2[1], x2[14]);
2153   x3[2] = _mm256_add_epi32(x2[2], x2[13]);
2154   x3[13] = _mm256_sub_epi32(x2[2], x2[13]);
2155   x3[3] = _mm256_add_epi32(x2[3], x2[12]);
2156   x3[12] = _mm256_sub_epi32(x2[3], x2[12]);
2157   x3[4] = _mm256_add_epi32(x2[4], x2[11]);
2158   x3[11] = _mm256_sub_epi32(x2[4], x2[11]);
2159   x3[5] = _mm256_add_epi32(x2[5], x2[10]);
2160   x3[10] = _mm256_sub_epi32(x2[5], x2[10]);
2161   x3[6] = _mm256_add_epi32(x2[6], x2[9]);
2162   x3[9] = _mm256_sub_epi32(x2[6], x2[9]);
2163   x3[7] = _mm256_add_epi32(x2[7], x2[8]);
2164   x3[8] = _mm256_sub_epi32(x2[7], x2[8]);
2165   x3[16] = x2[16];
2166   x3[17] = x2[17];
2167   x3[18] = x2[18];
2168   x3[19] = x2[19];
2169   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x2[20], x2[27], x3[20], x3[27],
2170                         *__rounding, cos_bit);
2171   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x2[21], x2[26], x3[21], x3[26],
2172                         *__rounding, cos_bit);
2173   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x2[22], x2[25], x3[22], x3[25],
2174                         *__rounding, cos_bit);
2175   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x2[23], x2[24], x3[23], x3[24],
2176                         *__rounding, cos_bit);
2177   x3[28] = x2[28];
2178   x3[29] = x2[29];
2179   x3[30] = x2[30];
2180   x3[31] = x2[31];
2181   x3[32] = _mm256_add_epi32(x2[32], x2[47]);
2182   x3[47] = _mm256_sub_epi32(x2[32], x2[47]);
2183   x3[33] = _mm256_add_epi32(x2[33], x2[46]);
2184   x3[46] = _mm256_sub_epi32(x2[33], x2[46]);
2185   x3[34] = _mm256_add_epi32(x2[34], x2[45]);
2186   x3[45] = _mm256_sub_epi32(x2[34], x2[45]);
2187   x3[35] = _mm256_add_epi32(x2[35], x2[44]);
2188   x3[44] = _mm256_sub_epi32(x2[35], x2[44]);
2189   x3[36] = _mm256_add_epi32(x2[36], x2[43]);
2190   x3[43] = _mm256_sub_epi32(x2[36], x2[43]);
2191   x3[37] = _mm256_add_epi32(x2[37], x2[42]);
2192   x3[42] = _mm256_sub_epi32(x2[37], x2[42]);
2193   x3[38] = _mm256_add_epi32(x2[38], x2[41]);
2194   x3[41] = _mm256_sub_epi32(x2[38], x2[41]);
2195   x3[39] = _mm256_add_epi32(x2[39], x2[40]);
2196   x3[40] = _mm256_sub_epi32(x2[39], x2[40]);
2197   x3[48] = _mm256_sub_epi32(x2[63], x2[48]);
2198   x3[63] = _mm256_add_epi32(x2[63], x2[48]);
2199   x3[49] = _mm256_sub_epi32(x2[62], x2[49]);
2200   x3[62] = _mm256_add_epi32(x2[62], x2[49]);
2201   x3[50] = _mm256_sub_epi32(x2[61], x2[50]);
2202   x3[61] = _mm256_add_epi32(x2[61], x2[50]);
2203   x3[51] = _mm256_sub_epi32(x2[60], x2[51]);
2204   x3[60] = _mm256_add_epi32(x2[60], x2[51]);
2205   x3[52] = _mm256_sub_epi32(x2[59], x2[52]);
2206   x3[59] = _mm256_add_epi32(x2[59], x2[52]);
2207   x3[53] = _mm256_sub_epi32(x2[58], x2[53]);
2208   x3[58] = _mm256_add_epi32(x2[58], x2[53]);
2209   x3[54] = _mm256_sub_epi32(x2[57], x2[54]);
2210   x3[57] = _mm256_add_epi32(x2[57], x2[54]);
2211   x3[55] = _mm256_sub_epi32(x2[56], x2[55]);
2212   x3[56] = _mm256_add_epi32(x2[56], x2[55]);
2213 }
fdct64_stage4_avx2(__m256i * x3,__m256i * x4,__m256i * cospi_m32,__m256i * cospi_p32,__m256i * cospi_m16,__m256i * cospi_p48,__m256i * cospi_m48,const __m256i * __rounding,int8_t cos_bit)2214 static inline void fdct64_stage4_avx2(__m256i *x3, __m256i *x4,
2215                                       __m256i *cospi_m32, __m256i *cospi_p32,
2216                                       __m256i *cospi_m16, __m256i *cospi_p48,
2217                                       __m256i *cospi_m48,
2218                                       const __m256i *__rounding,
2219                                       int8_t cos_bit) {
2220   x4[0] = _mm256_add_epi32(x3[0], x3[7]);
2221   x4[7] = _mm256_sub_epi32(x3[0], x3[7]);
2222   x4[1] = _mm256_add_epi32(x3[1], x3[6]);
2223   x4[6] = _mm256_sub_epi32(x3[1], x3[6]);
2224   x4[2] = _mm256_add_epi32(x3[2], x3[5]);
2225   x4[5] = _mm256_sub_epi32(x3[2], x3[5]);
2226   x4[3] = _mm256_add_epi32(x3[3], x3[4]);
2227   x4[4] = _mm256_sub_epi32(x3[3], x3[4]);
2228   x4[8] = x3[8];
2229   x4[9] = x3[9];
2230   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x3[10], x3[13], x4[10], x4[13],
2231                         *__rounding, cos_bit);
2232   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x3[11], x3[12], x4[11], x4[12],
2233                         *__rounding, cos_bit);
2234   x4[14] = x3[14];
2235   x4[15] = x3[15];
2236   x4[16] = _mm256_add_epi32(x3[16], x3[23]);
2237   x4[23] = _mm256_sub_epi32(x3[16], x3[23]);
2238   x4[17] = _mm256_add_epi32(x3[17], x3[22]);
2239   x4[22] = _mm256_sub_epi32(x3[17], x3[22]);
2240   x4[18] = _mm256_add_epi32(x3[18], x3[21]);
2241   x4[21] = _mm256_sub_epi32(x3[18], x3[21]);
2242   x4[19] = _mm256_add_epi32(x3[19], x3[20]);
2243   x4[20] = _mm256_sub_epi32(x3[19], x3[20]);
2244   x4[24] = _mm256_sub_epi32(x3[31], x3[24]);
2245   x4[31] = _mm256_add_epi32(x3[31], x3[24]);
2246   x4[25] = _mm256_sub_epi32(x3[30], x3[25]);
2247   x4[30] = _mm256_add_epi32(x3[30], x3[25]);
2248   x4[26] = _mm256_sub_epi32(x3[29], x3[26]);
2249   x4[29] = _mm256_add_epi32(x3[29], x3[26]);
2250   x4[27] = _mm256_sub_epi32(x3[28], x3[27]);
2251   x4[28] = _mm256_add_epi32(x3[28], x3[27]);
2252   x4[32] = x3[32];
2253   x4[33] = x3[33];
2254   x4[34] = x3[34];
2255   x4[35] = x3[35];
2256   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x3[36], x3[59], x4[36], x4[59],
2257                         *__rounding, cos_bit);
2258   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x3[37], x3[58], x4[37], x4[58],
2259                         *__rounding, cos_bit);
2260   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x3[38], x3[57], x4[38], x4[57],
2261                         *__rounding, cos_bit);
2262   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x3[39], x3[56], x4[39], x4[56],
2263                         *__rounding, cos_bit);
2264   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x3[40], x3[55], x4[40], x4[55],
2265                         *__rounding, cos_bit);
2266   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x3[41], x3[54], x4[41], x4[54],
2267                         *__rounding, cos_bit);
2268   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x3[42], x3[53], x4[42], x4[53],
2269                         *__rounding, cos_bit);
2270   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x3[43], x3[52], x4[43], x4[52],
2271                         *__rounding, cos_bit);
2272   x4[44] = x3[44];
2273   x4[45] = x3[45];
2274   x4[46] = x3[46];
2275   x4[47] = x3[47];
2276   x4[48] = x3[48];
2277   x4[49] = x3[49];
2278   x4[50] = x3[50];
2279   x4[51] = x3[51];
2280   x4[60] = x3[60];
2281   x4[61] = x3[61];
2282   x4[62] = x3[62];
2283   x4[63] = x3[63];
2284 }
fdct64_stage5_avx2(__m256i * x4,__m256i * x5,__m256i * cospi_m32,__m256i * cospi_p32,__m256i * cospi_m16,__m256i * cospi_p48,__m256i * cospi_m48,const __m256i * __rounding,int8_t cos_bit)2285 static inline void fdct64_stage5_avx2(__m256i *x4, __m256i *x5,
2286                                       __m256i *cospi_m32, __m256i *cospi_p32,
2287                                       __m256i *cospi_m16, __m256i *cospi_p48,
2288                                       __m256i *cospi_m48,
2289                                       const __m256i *__rounding,
2290                                       int8_t cos_bit) {
2291   x5[0] = _mm256_add_epi32(x4[0], x4[3]);
2292   x5[3] = _mm256_sub_epi32(x4[0], x4[3]);
2293   x5[1] = _mm256_add_epi32(x4[1], x4[2]);
2294   x5[2] = _mm256_sub_epi32(x4[1], x4[2]);
2295   x5[4] = x4[4];
2296   btf_32_type0_avx2_new(*cospi_m32, *cospi_p32, x4[5], x4[6], x5[5], x5[6],
2297                         *__rounding, cos_bit);
2298   x5[7] = x4[7];
2299   x5[8] = _mm256_add_epi32(x4[8], x4[11]);
2300   x5[11] = _mm256_sub_epi32(x4[8], x4[11]);
2301   x5[9] = _mm256_add_epi32(x4[9], x4[10]);
2302   x5[10] = _mm256_sub_epi32(x4[9], x4[10]);
2303   x5[12] = _mm256_sub_epi32(x4[15], x4[12]);
2304   x5[15] = _mm256_add_epi32(x4[15], x4[12]);
2305   x5[13] = _mm256_sub_epi32(x4[14], x4[13]);
2306   x5[14] = _mm256_add_epi32(x4[14], x4[13]);
2307   x5[16] = x4[16];
2308   x5[17] = x4[17];
2309   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x4[18], x4[29], x5[18], x5[29],
2310                         *__rounding, cos_bit);
2311   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x4[19], x4[28], x5[19], x5[28],
2312                         *__rounding, cos_bit);
2313   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x4[20], x4[27], x5[20], x5[27],
2314                         *__rounding, cos_bit);
2315   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x4[21], x4[26], x5[21], x5[26],
2316                         *__rounding, cos_bit);
2317   x5[22] = x4[22];
2318   x5[23] = x4[23];
2319   x5[24] = x4[24];
2320   x5[25] = x4[25];
2321   x5[30] = x4[30];
2322   x5[31] = x4[31];
2323   x5[32] = _mm256_add_epi32(x4[32], x4[39]);
2324   x5[39] = _mm256_sub_epi32(x4[32], x4[39]);
2325   x5[33] = _mm256_add_epi32(x4[33], x4[38]);
2326   x5[38] = _mm256_sub_epi32(x4[33], x4[38]);
2327   x5[34] = _mm256_add_epi32(x4[34], x4[37]);
2328   x5[37] = _mm256_sub_epi32(x4[34], x4[37]);
2329   x5[35] = _mm256_add_epi32(x4[35], x4[36]);
2330   x5[36] = _mm256_sub_epi32(x4[35], x4[36]);
2331   x5[40] = _mm256_sub_epi32(x4[47], x4[40]);
2332   x5[47] = _mm256_add_epi32(x4[47], x4[40]);
2333   x5[41] = _mm256_sub_epi32(x4[46], x4[41]);
2334   x5[46] = _mm256_add_epi32(x4[46], x4[41]);
2335   x5[42] = _mm256_sub_epi32(x4[45], x4[42]);
2336   x5[45] = _mm256_add_epi32(x4[45], x4[42]);
2337   x5[43] = _mm256_sub_epi32(x4[44], x4[43]);
2338   x5[44] = _mm256_add_epi32(x4[44], x4[43]);
2339   x5[48] = _mm256_add_epi32(x4[48], x4[55]);
2340   x5[55] = _mm256_sub_epi32(x4[48], x4[55]);
2341   x5[49] = _mm256_add_epi32(x4[49], x4[54]);
2342   x5[54] = _mm256_sub_epi32(x4[49], x4[54]);
2343   x5[50] = _mm256_add_epi32(x4[50], x4[53]);
2344   x5[53] = _mm256_sub_epi32(x4[50], x4[53]);
2345   x5[51] = _mm256_add_epi32(x4[51], x4[52]);
2346   x5[52] = _mm256_sub_epi32(x4[51], x4[52]);
2347   x5[56] = _mm256_sub_epi32(x4[63], x4[56]);
2348   x5[63] = _mm256_add_epi32(x4[63], x4[56]);
2349   x5[57] = _mm256_sub_epi32(x4[62], x4[57]);
2350   x5[62] = _mm256_add_epi32(x4[62], x4[57]);
2351   x5[58] = _mm256_sub_epi32(x4[61], x4[58]);
2352   x5[61] = _mm256_add_epi32(x4[61], x4[58]);
2353   x5[59] = _mm256_sub_epi32(x4[60], x4[59]);
2354   x5[60] = _mm256_add_epi32(x4[60], x4[59]);
2355 }
fdct64_stage6_avx2(__m256i * x5,__m256i * x6,__m256i * cospi_p16,__m256i * cospi_p32,__m256i * cospi_m16,__m256i * cospi_p48,__m256i * cospi_m48,__m256i * cospi_m08,__m256i * cospi_p56,__m256i * cospi_m56,__m256i * cospi_m40,__m256i * cospi_p24,__m256i * cospi_m24,const __m256i * __rounding,int8_t cos_bit)2356 static inline void fdct64_stage6_avx2(
2357     __m256i *x5, __m256i *x6, __m256i *cospi_p16, __m256i *cospi_p32,
2358     __m256i *cospi_m16, __m256i *cospi_p48, __m256i *cospi_m48,
2359     __m256i *cospi_m08, __m256i *cospi_p56, __m256i *cospi_m56,
2360     __m256i *cospi_m40, __m256i *cospi_p24, __m256i *cospi_m24,
2361     const __m256i *__rounding, int8_t cos_bit) {
2362   btf_32_type0_avx2_new(*cospi_p32, *cospi_p32, x5[0], x5[1], x6[0], x6[1],
2363                         *__rounding, cos_bit);
2364   btf_32_type0_avx2_new(*cospi_p16, *cospi_p48, x5[3], x5[2], x6[2], x6[3],
2365                         *__rounding, cos_bit);
2366   x6[4] = _mm256_add_epi32(x5[4], x5[5]);
2367   x6[5] = _mm256_sub_epi32(x5[4], x5[5]);
2368   x6[6] = _mm256_sub_epi32(x5[7], x5[6]);
2369   x6[7] = _mm256_add_epi32(x5[7], x5[6]);
2370   x6[8] = x5[8];
2371   btf_32_type0_avx2_new(*cospi_m16, *cospi_p48, x5[9], x5[14], x6[9], x6[14],
2372                         *__rounding, cos_bit);
2373   btf_32_type0_avx2_new(*cospi_m48, *cospi_m16, x5[10], x5[13], x6[10], x6[13],
2374                         *__rounding, cos_bit);
2375   x6[11] = x5[11];
2376   x6[12] = x5[12];
2377   x6[15] = x5[15];
2378   x6[16] = _mm256_add_epi32(x5[16], x5[19]);
2379   x6[19] = _mm256_sub_epi32(x5[16], x5[19]);
2380   x6[17] = _mm256_add_epi32(x5[17], x5[18]);
2381   x6[18] = _mm256_sub_epi32(x5[17], x5[18]);
2382   x6[20] = _mm256_sub_epi32(x5[23], x5[20]);
2383   x6[23] = _mm256_add_epi32(x5[23], x5[20]);
2384   x6[21] = _mm256_sub_epi32(x5[22], x5[21]);
2385   x6[22] = _mm256_add_epi32(x5[22], x5[21]);
2386   x6[24] = _mm256_add_epi32(x5[24], x5[27]);
2387   x6[27] = _mm256_sub_epi32(x5[24], x5[27]);
2388   x6[25] = _mm256_add_epi32(x5[25], x5[26]);
2389   x6[26] = _mm256_sub_epi32(x5[25], x5[26]);
2390   x6[28] = _mm256_sub_epi32(x5[31], x5[28]);
2391   x6[31] = _mm256_add_epi32(x5[31], x5[28]);
2392   x6[29] = _mm256_sub_epi32(x5[30], x5[29]);
2393   x6[30] = _mm256_add_epi32(x5[30], x5[29]);
2394   x6[32] = x5[32];
2395   x6[33] = x5[33];
2396   btf_32_type0_avx2_new(*cospi_m08, *cospi_p56, x5[34], x5[61], x6[34], x6[61],
2397                         *__rounding, cos_bit);
2398   btf_32_type0_avx2_new(*cospi_m08, *cospi_p56, x5[35], x5[60], x6[35], x6[60],
2399                         *__rounding, cos_bit);
2400   btf_32_type0_avx2_new(*cospi_m56, *cospi_m08, x5[36], x5[59], x6[36], x6[59],
2401                         *__rounding, cos_bit);
2402   btf_32_type0_avx2_new(*cospi_m56, *cospi_m08, x5[37], x5[58], x6[37], x6[58],
2403                         *__rounding, cos_bit);
2404   x6[38] = x5[38];
2405   x6[39] = x5[39];
2406   x6[40] = x5[40];
2407   x6[41] = x5[41];
2408   btf_32_type0_avx2_new(*cospi_m40, *cospi_p24, x5[42], x5[53], x6[42], x6[53],
2409                         *__rounding, cos_bit);
2410   btf_32_type0_avx2_new(*cospi_m40, *cospi_p24, x5[43], x5[52], x6[43], x6[52],
2411                         *__rounding, cos_bit);
2412   btf_32_type0_avx2_new(*cospi_m24, *cospi_m40, x5[44], x5[51], x6[44], x6[51],
2413                         *__rounding, cos_bit);
2414   btf_32_type0_avx2_new(*cospi_m24, *cospi_m40, x5[45], x5[50], x6[45], x6[50],
2415                         *__rounding, cos_bit);
2416   x6[46] = x5[46];
2417   x6[47] = x5[47];
2418   x6[48] = x5[48];
2419   x6[49] = x5[49];
2420   x6[54] = x5[54];
2421   x6[55] = x5[55];
2422   x6[56] = x5[56];
2423   x6[57] = x5[57];
2424   x6[62] = x5[62];
2425   x6[63] = x5[63];
2426 }
fdct64_stage7_avx2(__m256i * x6,__m256i * x7,__m256i * cospi_p08,__m256i * cospi_p56,__m256i * cospi_p40,__m256i * cospi_p24,__m256i * cospi_m08,__m256i * cospi_m56,__m256i * cospi_m40,__m256i * cospi_m24,const __m256i * __rounding,int8_t cos_bit)2427 static inline void fdct64_stage7_avx2(__m256i *x6, __m256i *x7,
2428                                       __m256i *cospi_p08, __m256i *cospi_p56,
2429                                       __m256i *cospi_p40, __m256i *cospi_p24,
2430                                       __m256i *cospi_m08, __m256i *cospi_m56,
2431                                       __m256i *cospi_m40, __m256i *cospi_m24,
2432                                       const __m256i *__rounding,
2433                                       int8_t cos_bit) {
2434   x7[0] = x6[0];
2435   x7[1] = x6[1];
2436   x7[2] = x6[2];
2437   x7[3] = x6[3];
2438   btf_32_type0_avx2_new(*cospi_p08, *cospi_p56, x6[7], x6[4], x7[4], x7[7],
2439                         *__rounding, cos_bit);
2440   btf_32_type0_avx2_new(*cospi_p40, *cospi_p24, x6[6], x6[5], x7[5], x7[6],
2441                         *__rounding, cos_bit);
2442   x7[8] = _mm256_add_epi32(x6[8], x6[9]);
2443   x7[9] = _mm256_sub_epi32(x6[8], x6[9]);
2444   x7[10] = _mm256_sub_epi32(x6[11], x6[10]);
2445   x7[11] = _mm256_add_epi32(x6[11], x6[10]);
2446   x7[12] = _mm256_add_epi32(x6[12], x6[13]);
2447   x7[13] = _mm256_sub_epi32(x6[12], x6[13]);
2448   x7[14] = _mm256_sub_epi32(x6[15], x6[14]);
2449   x7[15] = _mm256_add_epi32(x6[15], x6[14]);
2450   x7[16] = x6[16];
2451   btf_32_type0_avx2_new(*cospi_m08, *cospi_p56, x6[17], x6[30], x7[17], x7[30],
2452                         *__rounding, cos_bit);
2453   btf_32_type0_avx2_new(*cospi_m56, *cospi_m08, x6[18], x6[29], x7[18], x7[29],
2454                         *__rounding, cos_bit);
2455   x7[19] = x6[19];
2456   x7[20] = x6[20];
2457   btf_32_type0_avx2_new(*cospi_m40, *cospi_p24, x6[21], x6[26], x7[21], x7[26],
2458                         *__rounding, cos_bit);
2459   btf_32_type0_avx2_new(*cospi_m24, *cospi_m40, x6[22], x6[25], x7[22], x7[25],
2460                         *__rounding, cos_bit);
2461   x7[23] = x6[23];
2462   x7[24] = x6[24];
2463   x7[27] = x6[27];
2464   x7[28] = x6[28];
2465   x7[31] = x6[31];
2466   x7[32] = _mm256_add_epi32(x6[32], x6[35]);
2467   x7[35] = _mm256_sub_epi32(x6[32], x6[35]);
2468   x7[33] = _mm256_add_epi32(x6[33], x6[34]);
2469   x7[34] = _mm256_sub_epi32(x6[33], x6[34]);
2470   x7[36] = _mm256_sub_epi32(x6[39], x6[36]);
2471   x7[39] = _mm256_add_epi32(x6[39], x6[36]);
2472   x7[37] = _mm256_sub_epi32(x6[38], x6[37]);
2473   x7[38] = _mm256_add_epi32(x6[38], x6[37]);
2474   x7[40] = _mm256_add_epi32(x6[40], x6[43]);
2475   x7[43] = _mm256_sub_epi32(x6[40], x6[43]);
2476   x7[41] = _mm256_add_epi32(x6[41], x6[42]);
2477   x7[42] = _mm256_sub_epi32(x6[41], x6[42]);
2478   x7[44] = _mm256_sub_epi32(x6[47], x6[44]);
2479   x7[47] = _mm256_add_epi32(x6[47], x6[44]);
2480   x7[45] = _mm256_sub_epi32(x6[46], x6[45]);
2481   x7[46] = _mm256_add_epi32(x6[46], x6[45]);
2482   x7[48] = _mm256_add_epi32(x6[48], x6[51]);
2483   x7[51] = _mm256_sub_epi32(x6[48], x6[51]);
2484   x7[49] = _mm256_add_epi32(x6[49], x6[50]);
2485   x7[50] = _mm256_sub_epi32(x6[49], x6[50]);
2486   x7[52] = _mm256_sub_epi32(x6[55], x6[52]);
2487   x7[55] = _mm256_add_epi32(x6[55], x6[52]);
2488   x7[53] = _mm256_sub_epi32(x6[54], x6[53]);
2489   x7[54] = _mm256_add_epi32(x6[54], x6[53]);
2490   x7[56] = _mm256_add_epi32(x6[56], x6[59]);
2491   x7[59] = _mm256_sub_epi32(x6[56], x6[59]);
2492   x7[57] = _mm256_add_epi32(x6[57], x6[58]);
2493   x7[58] = _mm256_sub_epi32(x6[57], x6[58]);
2494   x7[60] = _mm256_sub_epi32(x6[63], x6[60]);
2495   x7[63] = _mm256_add_epi32(x6[63], x6[60]);
2496   x7[61] = _mm256_sub_epi32(x6[62], x6[61]);
2497   x7[62] = _mm256_add_epi32(x6[62], x6[61]);
2498 }
fdct64_stage8_avx2(__m256i * x7,__m256i * x8,const int32_t * cospi,const __m256i * __rounding,int8_t cos_bit)2499 static inline void fdct64_stage8_avx2(__m256i *x7, __m256i *x8,
2500                                       const int32_t *cospi,
2501                                       const __m256i *__rounding,
2502                                       int8_t cos_bit) {
2503   __m256i cospi_p60 = _mm256_set1_epi32(cospi[60]);
2504   __m256i cospi_p04 = _mm256_set1_epi32(cospi[4]);
2505   __m256i cospi_p28 = _mm256_set1_epi32(cospi[28]);
2506   __m256i cospi_p36 = _mm256_set1_epi32(cospi[36]);
2507   __m256i cospi_p44 = _mm256_set1_epi32(cospi[44]);
2508   __m256i cospi_p20 = _mm256_set1_epi32(cospi[20]);
2509   __m256i cospi_p12 = _mm256_set1_epi32(cospi[12]);
2510   __m256i cospi_p52 = _mm256_set1_epi32(cospi[52]);
2511   __m256i cospi_m04 = _mm256_set1_epi32(-cospi[4]);
2512   __m256i cospi_m60 = _mm256_set1_epi32(-cospi[60]);
2513   __m256i cospi_m36 = _mm256_set1_epi32(-cospi[36]);
2514   __m256i cospi_m28 = _mm256_set1_epi32(-cospi[28]);
2515   __m256i cospi_m20 = _mm256_set1_epi32(-cospi[20]);
2516   __m256i cospi_m44 = _mm256_set1_epi32(-cospi[44]);
2517   __m256i cospi_m52 = _mm256_set1_epi32(-cospi[52]);
2518   __m256i cospi_m12 = _mm256_set1_epi32(-cospi[12]);
2519 
2520   x8[0] = x7[0];
2521   x8[1] = x7[1];
2522   x8[2] = x7[2];
2523   x8[3] = x7[3];
2524   x8[4] = x7[4];
2525   x8[5] = x7[5];
2526   x8[6] = x7[6];
2527   x8[7] = x7[7];
2528 
2529   btf_32_type0_avx2_new(cospi_p04, cospi_p60, x7[15], x7[8], x8[8], x8[15],
2530                         *__rounding, cos_bit);
2531   btf_32_type0_avx2_new(cospi_p36, cospi_p28, x7[14], x7[9], x8[9], x8[14],
2532                         *__rounding, cos_bit);
2533   btf_32_type0_avx2_new(cospi_p20, cospi_p44, x7[13], x7[10], x8[10], x8[13],
2534                         *__rounding, cos_bit);
2535   btf_32_type0_avx2_new(cospi_p52, cospi_p12, x7[12], x7[11], x8[11], x8[12],
2536                         *__rounding, cos_bit);
2537   x8[16] = _mm256_add_epi32(x7[16], x7[17]);
2538   x8[17] = _mm256_sub_epi32(x7[16], x7[17]);
2539   x8[18] = _mm256_sub_epi32(x7[19], x7[18]);
2540   x8[19] = _mm256_add_epi32(x7[19], x7[18]);
2541   x8[20] = _mm256_add_epi32(x7[20], x7[21]);
2542   x8[21] = _mm256_sub_epi32(x7[20], x7[21]);
2543   x8[22] = _mm256_sub_epi32(x7[23], x7[22]);
2544   x8[23] = _mm256_add_epi32(x7[23], x7[22]);
2545   x8[24] = _mm256_add_epi32(x7[24], x7[25]);
2546   x8[25] = _mm256_sub_epi32(x7[24], x7[25]);
2547   x8[26] = _mm256_sub_epi32(x7[27], x7[26]);
2548   x8[27] = _mm256_add_epi32(x7[27], x7[26]);
2549   x8[28] = _mm256_add_epi32(x7[28], x7[29]);
2550   x8[29] = _mm256_sub_epi32(x7[28], x7[29]);
2551   x8[30] = _mm256_sub_epi32(x7[31], x7[30]);
2552   x8[31] = _mm256_add_epi32(x7[31], x7[30]);
2553   x8[32] = x7[32];
2554   btf_32_type0_avx2_new(cospi_m04, cospi_p60, x7[33], x7[62], x8[33], x8[62],
2555                         *__rounding, cos_bit);
2556   btf_32_type0_avx2_new(cospi_m60, cospi_m04, x7[34], x7[61], x8[34], x8[61],
2557                         *__rounding, cos_bit);
2558   x8[35] = x7[35];
2559   x8[36] = x7[36];
2560   btf_32_type0_avx2_new(cospi_m36, cospi_p28, x7[37], x7[58], x8[37], x8[58],
2561                         *__rounding, cos_bit);
2562   btf_32_type0_avx2_new(cospi_m28, cospi_m36, x7[38], x7[57], x8[38], x8[57],
2563                         *__rounding, cos_bit);
2564   x8[39] = x7[39];
2565   x8[40] = x7[40];
2566   btf_32_type0_avx2_new(cospi_m20, cospi_p44, x7[41], x7[54], x8[41], x8[54],
2567                         *__rounding, cos_bit);
2568   btf_32_type0_avx2_new(cospi_m44, cospi_m20, x7[42], x7[53], x8[42], x8[53],
2569                         *__rounding, cos_bit);
2570   x8[43] = x7[43];
2571   x8[44] = x7[44];
2572   btf_32_type0_avx2_new(cospi_m52, cospi_p12, x7[45], x7[50], x8[45], x8[50],
2573                         *__rounding, cos_bit);
2574   btf_32_type0_avx2_new(cospi_m12, cospi_m52, x7[46], x7[49], x8[46], x8[49],
2575                         *__rounding, cos_bit);
2576   x8[47] = x7[47];
2577   x8[48] = x7[48];
2578   x8[51] = x7[51];
2579   x8[52] = x7[52];
2580   x8[55] = x7[55];
2581   x8[56] = x7[56];
2582   x8[59] = x7[59];
2583   x8[60] = x7[60];
2584   x8[63] = x7[63];
2585 }
fdct64_stage9_avx2(__m256i * x8,__m256i * x9,const int32_t * cospi,const __m256i * __rounding,int8_t cos_bit)2586 static inline void fdct64_stage9_avx2(__m256i *x8, __m256i *x9,
2587                                       const int32_t *cospi,
2588                                       const __m256i *__rounding,
2589                                       int8_t cos_bit) {
2590   __m256i cospi_p62 = _mm256_set1_epi32(cospi[62]);
2591   __m256i cospi_p02 = _mm256_set1_epi32(cospi[2]);
2592   __m256i cospi_p30 = _mm256_set1_epi32(cospi[30]);
2593   __m256i cospi_p34 = _mm256_set1_epi32(cospi[34]);
2594   __m256i cospi_p46 = _mm256_set1_epi32(cospi[46]);
2595   __m256i cospi_p18 = _mm256_set1_epi32(cospi[18]);
2596   __m256i cospi_p14 = _mm256_set1_epi32(cospi[14]);
2597   __m256i cospi_p50 = _mm256_set1_epi32(cospi[50]);
2598   __m256i cospi_p54 = _mm256_set1_epi32(cospi[54]);
2599   __m256i cospi_p10 = _mm256_set1_epi32(cospi[10]);
2600   __m256i cospi_p22 = _mm256_set1_epi32(cospi[22]);
2601   __m256i cospi_p42 = _mm256_set1_epi32(cospi[42]);
2602   __m256i cospi_p38 = _mm256_set1_epi32(cospi[38]);
2603   __m256i cospi_p26 = _mm256_set1_epi32(cospi[26]);
2604   __m256i cospi_p06 = _mm256_set1_epi32(cospi[6]);
2605   __m256i cospi_p58 = _mm256_set1_epi32(cospi[58]);
2606 
2607   x9[0] = x8[0];
2608   x9[1] = x8[1];
2609   x9[2] = x8[2];
2610   x9[3] = x8[3];
2611   x9[4] = x8[4];
2612   x9[5] = x8[5];
2613   x9[6] = x8[6];
2614   x9[7] = x8[7];
2615   x9[8] = x8[8];
2616   x9[9] = x8[9];
2617   x9[10] = x8[10];
2618   x9[11] = x8[11];
2619   x9[12] = x8[12];
2620   x9[13] = x8[13];
2621   x9[14] = x8[14];
2622   x9[15] = x8[15];
2623   btf_32_type0_avx2_new(cospi_p02, cospi_p62, x8[31], x8[16], x9[16], x9[31],
2624                         *__rounding, cos_bit);
2625   btf_32_type0_avx2_new(cospi_p34, cospi_p30, x8[30], x8[17], x9[17], x9[30],
2626                         *__rounding, cos_bit);
2627   btf_32_type0_avx2_new(cospi_p18, cospi_p46, x8[29], x8[18], x9[18], x9[29],
2628                         *__rounding, cos_bit);
2629   btf_32_type0_avx2_new(cospi_p50, cospi_p14, x8[28], x8[19], x9[19], x9[28],
2630                         *__rounding, cos_bit);
2631   btf_32_type0_avx2_new(cospi_p10, cospi_p54, x8[27], x8[20], x9[20], x9[27],
2632                         *__rounding, cos_bit);
2633   btf_32_type0_avx2_new(cospi_p42, cospi_p22, x8[26], x8[21], x9[21], x9[26],
2634                         *__rounding, cos_bit);
2635   btf_32_type0_avx2_new(cospi_p26, cospi_p38, x8[25], x8[22], x9[22], x9[25],
2636                         *__rounding, cos_bit);
2637   btf_32_type0_avx2_new(cospi_p58, cospi_p06, x8[24], x8[23], x9[23], x9[24],
2638                         *__rounding, cos_bit);
2639   x9[32] = _mm256_add_epi32(x8[32], x8[33]);
2640   x9[33] = _mm256_sub_epi32(x8[32], x8[33]);
2641   x9[34] = _mm256_sub_epi32(x8[35], x8[34]);
2642   x9[35] = _mm256_add_epi32(x8[35], x8[34]);
2643   x9[36] = _mm256_add_epi32(x8[36], x8[37]);
2644   x9[37] = _mm256_sub_epi32(x8[36], x8[37]);
2645   x9[38] = _mm256_sub_epi32(x8[39], x8[38]);
2646   x9[39] = _mm256_add_epi32(x8[39], x8[38]);
2647   x9[40] = _mm256_add_epi32(x8[40], x8[41]);
2648   x9[41] = _mm256_sub_epi32(x8[40], x8[41]);
2649   x9[42] = _mm256_sub_epi32(x8[43], x8[42]);
2650   x9[43] = _mm256_add_epi32(x8[43], x8[42]);
2651   x9[44] = _mm256_add_epi32(x8[44], x8[45]);
2652   x9[45] = _mm256_sub_epi32(x8[44], x8[45]);
2653   x9[46] = _mm256_sub_epi32(x8[47], x8[46]);
2654   x9[47] = _mm256_add_epi32(x8[47], x8[46]);
2655   x9[48] = _mm256_add_epi32(x8[48], x8[49]);
2656   x9[49] = _mm256_sub_epi32(x8[48], x8[49]);
2657   x9[50] = _mm256_sub_epi32(x8[51], x8[50]);
2658   x9[51] = _mm256_add_epi32(x8[51], x8[50]);
2659   x9[52] = _mm256_add_epi32(x8[52], x8[53]);
2660   x9[53] = _mm256_sub_epi32(x8[52], x8[53]);
2661   x9[54] = _mm256_sub_epi32(x8[55], x8[54]);
2662   x9[55] = _mm256_add_epi32(x8[55], x8[54]);
2663   x9[56] = _mm256_add_epi32(x8[56], x8[57]);
2664   x9[57] = _mm256_sub_epi32(x8[56], x8[57]);
2665   x9[58] = _mm256_sub_epi32(x8[59], x8[58]);
2666   x9[59] = _mm256_add_epi32(x8[59], x8[58]);
2667   x9[60] = _mm256_add_epi32(x8[60], x8[61]);
2668   x9[61] = _mm256_sub_epi32(x8[60], x8[61]);
2669   x9[62] = _mm256_sub_epi32(x8[63], x8[62]);
2670   x9[63] = _mm256_add_epi32(x8[63], x8[62]);
2671 }
fdct64_stage10_avx2(__m256i * x9,__m256i * x10,const int32_t * cospi,const __m256i * __rounding,int8_t cos_bit)2672 static inline void fdct64_stage10_avx2(__m256i *x9, __m256i *x10,
2673                                        const int32_t *cospi,
2674                                        const __m256i *__rounding,
2675                                        int8_t cos_bit) {
2676   __m256i cospi_p63 = _mm256_set1_epi32(cospi[63]);
2677   __m256i cospi_p01 = _mm256_set1_epi32(cospi[1]);
2678   __m256i cospi_p31 = _mm256_set1_epi32(cospi[31]);
2679   __m256i cospi_p33 = _mm256_set1_epi32(cospi[33]);
2680   __m256i cospi_p47 = _mm256_set1_epi32(cospi[47]);
2681   __m256i cospi_p17 = _mm256_set1_epi32(cospi[17]);
2682   __m256i cospi_p15 = _mm256_set1_epi32(cospi[15]);
2683   __m256i cospi_p49 = _mm256_set1_epi32(cospi[49]);
2684   __m256i cospi_p55 = _mm256_set1_epi32(cospi[55]);
2685   __m256i cospi_p09 = _mm256_set1_epi32(cospi[9]);
2686   __m256i cospi_p23 = _mm256_set1_epi32(cospi[23]);
2687   __m256i cospi_p41 = _mm256_set1_epi32(cospi[41]);
2688   __m256i cospi_p39 = _mm256_set1_epi32(cospi[39]);
2689   __m256i cospi_p25 = _mm256_set1_epi32(cospi[25]);
2690   __m256i cospi_p07 = _mm256_set1_epi32(cospi[7]);
2691   __m256i cospi_p57 = _mm256_set1_epi32(cospi[57]);
2692   __m256i cospi_p59 = _mm256_set1_epi32(cospi[59]);
2693   __m256i cospi_p05 = _mm256_set1_epi32(cospi[5]);
2694   __m256i cospi_p27 = _mm256_set1_epi32(cospi[27]);
2695   __m256i cospi_p37 = _mm256_set1_epi32(cospi[37]);
2696   __m256i cospi_p43 = _mm256_set1_epi32(cospi[43]);
2697   __m256i cospi_p21 = _mm256_set1_epi32(cospi[21]);
2698   __m256i cospi_p11 = _mm256_set1_epi32(cospi[11]);
2699   __m256i cospi_p53 = _mm256_set1_epi32(cospi[53]);
2700   __m256i cospi_p51 = _mm256_set1_epi32(cospi[51]);
2701   __m256i cospi_p13 = _mm256_set1_epi32(cospi[13]);
2702   __m256i cospi_p19 = _mm256_set1_epi32(cospi[19]);
2703   __m256i cospi_p45 = _mm256_set1_epi32(cospi[45]);
2704   __m256i cospi_p35 = _mm256_set1_epi32(cospi[35]);
2705   __m256i cospi_p29 = _mm256_set1_epi32(cospi[29]);
2706   __m256i cospi_p03 = _mm256_set1_epi32(cospi[3]);
2707   __m256i cospi_p61 = _mm256_set1_epi32(cospi[61]);
2708 
2709   x10[0] = x9[0];
2710   x10[1] = x9[1];
2711   x10[2] = x9[2];
2712   x10[3] = x9[3];
2713   x10[4] = x9[4];
2714   x10[5] = x9[5];
2715   x10[6] = x9[6];
2716   x10[7] = x9[7];
2717   x10[8] = x9[8];
2718   x10[9] = x9[9];
2719   x10[10] = x9[10];
2720   x10[11] = x9[11];
2721   x10[12] = x9[12];
2722   x10[13] = x9[13];
2723   x10[14] = x9[14];
2724   x10[15] = x9[15];
2725   x10[16] = x9[16];
2726   x10[17] = x9[17];
2727   x10[18] = x9[18];
2728   x10[19] = x9[19];
2729   x10[20] = x9[20];
2730   x10[21] = x9[21];
2731   x10[22] = x9[22];
2732   x10[23] = x9[23];
2733   x10[24] = x9[24];
2734   x10[25] = x9[25];
2735   x10[26] = x9[26];
2736   x10[27] = x9[27];
2737   x10[28] = x9[28];
2738   x10[29] = x9[29];
2739   x10[30] = x9[30];
2740   x10[31] = x9[31];
2741   btf_32_type0_avx2_new(cospi_p01, cospi_p63, x9[63], x9[32], x10[32], x10[63],
2742                         *__rounding, cos_bit);
2743   btf_32_type0_avx2_new(cospi_p33, cospi_p31, x9[62], x9[33], x10[33], x10[62],
2744                         *__rounding, cos_bit);
2745   btf_32_type0_avx2_new(cospi_p17, cospi_p47, x9[61], x9[34], x10[34], x10[61],
2746                         *__rounding, cos_bit);
2747   btf_32_type0_avx2_new(cospi_p49, cospi_p15, x9[60], x9[35], x10[35], x10[60],
2748                         *__rounding, cos_bit);
2749   btf_32_type0_avx2_new(cospi_p09, cospi_p55, x9[59], x9[36], x10[36], x10[59],
2750                         *__rounding, cos_bit);
2751   btf_32_type0_avx2_new(cospi_p41, cospi_p23, x9[58], x9[37], x10[37], x10[58],
2752                         *__rounding, cos_bit);
2753   btf_32_type0_avx2_new(cospi_p25, cospi_p39, x9[57], x9[38], x10[38], x10[57],
2754                         *__rounding, cos_bit);
2755   btf_32_type0_avx2_new(cospi_p57, cospi_p07, x9[56], x9[39], x10[39], x10[56],
2756                         *__rounding, cos_bit);
2757   btf_32_type0_avx2_new(cospi_p05, cospi_p59, x9[55], x9[40], x10[40], x10[55],
2758                         *__rounding, cos_bit);
2759   btf_32_type0_avx2_new(cospi_p37, cospi_p27, x9[54], x9[41], x10[41], x10[54],
2760                         *__rounding, cos_bit);
2761   btf_32_type0_avx2_new(cospi_p21, cospi_p43, x9[53], x9[42], x10[42], x10[53],
2762                         *__rounding, cos_bit);
2763   btf_32_type0_avx2_new(cospi_p53, cospi_p11, x9[52], x9[43], x10[43], x10[52],
2764                         *__rounding, cos_bit);
2765   btf_32_type0_avx2_new(cospi_p13, cospi_p51, x9[51], x9[44], x10[44], x10[51],
2766                         *__rounding, cos_bit);
2767   btf_32_type0_avx2_new(cospi_p45, cospi_p19, x9[50], x9[45], x10[45], x10[50],
2768                         *__rounding, cos_bit);
2769   btf_32_type0_avx2_new(cospi_p29, cospi_p35, x9[49], x9[46], x10[46], x10[49],
2770                         *__rounding, cos_bit);
2771   btf_32_type0_avx2_new(cospi_p61, cospi_p03, x9[48], x9[47], x10[47], x10[48],
2772                         *__rounding, cos_bit);
2773 }
fdct64_avx2(__m256i * input,__m256i * output,int8_t cos_bit,const int instride,const int outstride)2774 static void fdct64_avx2(__m256i *input, __m256i *output, int8_t cos_bit,
2775                         const int instride, const int outstride) {
2776   const int32_t *cospi = cospi_arr(cos_bit);
2777   const __m256i __rounding = _mm256_set1_epi32(1 << (cos_bit - 1));
2778   __m256i cospi_m32 = _mm256_set1_epi32(-cospi[32]);
2779   __m256i cospi_p32 = _mm256_set1_epi32(cospi[32]);
2780   __m256i cospi_m16 = _mm256_set1_epi32(-cospi[16]);
2781   __m256i cospi_p48 = _mm256_set1_epi32(cospi[48]);
2782   __m256i cospi_m48 = _mm256_set1_epi32(-cospi[48]);
2783   __m256i cospi_p16 = _mm256_set1_epi32(cospi[16]);
2784   __m256i cospi_m08 = _mm256_set1_epi32(-cospi[8]);
2785   __m256i cospi_p56 = _mm256_set1_epi32(cospi[56]);
2786   __m256i cospi_m56 = _mm256_set1_epi32(-cospi[56]);
2787   __m256i cospi_m40 = _mm256_set1_epi32(-cospi[40]);
2788   __m256i cospi_p24 = _mm256_set1_epi32(cospi[24]);
2789   __m256i cospi_m24 = _mm256_set1_epi32(-cospi[24]);
2790   __m256i cospi_p08 = _mm256_set1_epi32(cospi[8]);
2791   __m256i cospi_p40 = _mm256_set1_epi32(cospi[40]);
2792 
2793   int startidx = 0 * instride;
2794   int endidx = 63 * instride;
2795   // stage 1
2796   __m256i x1[64];
2797   x1[0] = _mm256_add_epi32(input[startidx], input[endidx]);
2798   x1[63] = _mm256_sub_epi32(input[startidx], input[endidx]);
2799   startidx += instride;
2800   endidx -= instride;
2801   x1[1] = _mm256_add_epi32(input[startidx], input[endidx]);
2802   x1[62] = _mm256_sub_epi32(input[startidx], input[endidx]);
2803   startidx += instride;
2804   endidx -= instride;
2805   x1[2] = _mm256_add_epi32(input[startidx], input[endidx]);
2806   x1[61] = _mm256_sub_epi32(input[startidx], input[endidx]);
2807   startidx += instride;
2808   endidx -= instride;
2809   x1[3] = _mm256_add_epi32(input[startidx], input[endidx]);
2810   x1[60] = _mm256_sub_epi32(input[startidx], input[endidx]);
2811   startidx += instride;
2812   endidx -= instride;
2813   x1[4] = _mm256_add_epi32(input[startidx], input[endidx]);
2814   x1[59] = _mm256_sub_epi32(input[startidx], input[endidx]);
2815   startidx += instride;
2816   endidx -= instride;
2817   x1[5] = _mm256_add_epi32(input[startidx], input[endidx]);
2818   x1[58] = _mm256_sub_epi32(input[startidx], input[endidx]);
2819   startidx += instride;
2820   endidx -= instride;
2821   x1[6] = _mm256_add_epi32(input[startidx], input[endidx]);
2822   x1[57] = _mm256_sub_epi32(input[startidx], input[endidx]);
2823   startidx += instride;
2824   endidx -= instride;
2825   x1[7] = _mm256_add_epi32(input[startidx], input[endidx]);
2826   x1[56] = _mm256_sub_epi32(input[startidx], input[endidx]);
2827   startidx += instride;
2828   endidx -= instride;
2829   x1[8] = _mm256_add_epi32(input[startidx], input[endidx]);
2830   x1[55] = _mm256_sub_epi32(input[startidx], input[endidx]);
2831   startidx += instride;
2832   endidx -= instride;
2833   x1[9] = _mm256_add_epi32(input[startidx], input[endidx]);
2834   x1[54] = _mm256_sub_epi32(input[startidx], input[endidx]);
2835   startidx += instride;
2836   endidx -= instride;
2837   x1[10] = _mm256_add_epi32(input[startidx], input[endidx]);
2838   x1[53] = _mm256_sub_epi32(input[startidx], input[endidx]);
2839   startidx += instride;
2840   endidx -= instride;
2841   x1[11] = _mm256_add_epi32(input[startidx], input[endidx]);
2842   x1[52] = _mm256_sub_epi32(input[startidx], input[endidx]);
2843   startidx += instride;
2844   endidx -= instride;
2845   x1[12] = _mm256_add_epi32(input[startidx], input[endidx]);
2846   x1[51] = _mm256_sub_epi32(input[startidx], input[endidx]);
2847   startidx += instride;
2848   endidx -= instride;
2849   x1[13] = _mm256_add_epi32(input[startidx], input[endidx]);
2850   x1[50] = _mm256_sub_epi32(input[startidx], input[endidx]);
2851   startidx += instride;
2852   endidx -= instride;
2853   x1[14] = _mm256_add_epi32(input[startidx], input[endidx]);
2854   x1[49] = _mm256_sub_epi32(input[startidx], input[endidx]);
2855   startidx += instride;
2856   endidx -= instride;
2857   x1[15] = _mm256_add_epi32(input[startidx], input[endidx]);
2858   x1[48] = _mm256_sub_epi32(input[startidx], input[endidx]);
2859   startidx += instride;
2860   endidx -= instride;
2861   x1[16] = _mm256_add_epi32(input[startidx], input[endidx]);
2862   x1[47] = _mm256_sub_epi32(input[startidx], input[endidx]);
2863   startidx += instride;
2864   endidx -= instride;
2865   x1[17] = _mm256_add_epi32(input[startidx], input[endidx]);
2866   x1[46] = _mm256_sub_epi32(input[startidx], input[endidx]);
2867   startidx += instride;
2868   endidx -= instride;
2869   x1[18] = _mm256_add_epi32(input[startidx], input[endidx]);
2870   x1[45] = _mm256_sub_epi32(input[startidx], input[endidx]);
2871   startidx += instride;
2872   endidx -= instride;
2873   x1[19] = _mm256_add_epi32(input[startidx], input[endidx]);
2874   x1[44] = _mm256_sub_epi32(input[startidx], input[endidx]);
2875   startidx += instride;
2876   endidx -= instride;
2877   x1[20] = _mm256_add_epi32(input[startidx], input[endidx]);
2878   x1[43] = _mm256_sub_epi32(input[startidx], input[endidx]);
2879   startidx += instride;
2880   endidx -= instride;
2881   x1[21] = _mm256_add_epi32(input[startidx], input[endidx]);
2882   x1[42] = _mm256_sub_epi32(input[startidx], input[endidx]);
2883   startidx += instride;
2884   endidx -= instride;
2885   x1[22] = _mm256_add_epi32(input[startidx], input[endidx]);
2886   x1[41] = _mm256_sub_epi32(input[startidx], input[endidx]);
2887   startidx += instride;
2888   endidx -= instride;
2889   x1[23] = _mm256_add_epi32(input[startidx], input[endidx]);
2890   x1[40] = _mm256_sub_epi32(input[startidx], input[endidx]);
2891   startidx += instride;
2892   endidx -= instride;
2893   x1[24] = _mm256_add_epi32(input[startidx], input[endidx]);
2894   x1[39] = _mm256_sub_epi32(input[startidx], input[endidx]);
2895   startidx += instride;
2896   endidx -= instride;
2897   x1[25] = _mm256_add_epi32(input[startidx], input[endidx]);
2898   x1[38] = _mm256_sub_epi32(input[startidx], input[endidx]);
2899   startidx += instride;
2900   endidx -= instride;
2901   x1[26] = _mm256_add_epi32(input[startidx], input[endidx]);
2902   x1[37] = _mm256_sub_epi32(input[startidx], input[endidx]);
2903   startidx += instride;
2904   endidx -= instride;
2905   x1[27] = _mm256_add_epi32(input[startidx], input[endidx]);
2906   x1[36] = _mm256_sub_epi32(input[startidx], input[endidx]);
2907   startidx += instride;
2908   endidx -= instride;
2909   x1[28] = _mm256_add_epi32(input[startidx], input[endidx]);
2910   x1[35] = _mm256_sub_epi32(input[startidx], input[endidx]);
2911   startidx += instride;
2912   endidx -= instride;
2913   x1[29] = _mm256_add_epi32(input[startidx], input[endidx]);
2914   x1[34] = _mm256_sub_epi32(input[startidx], input[endidx]);
2915   startidx += instride;
2916   endidx -= instride;
2917   x1[30] = _mm256_add_epi32(input[startidx], input[endidx]);
2918   x1[33] = _mm256_sub_epi32(input[startidx], input[endidx]);
2919   startidx += instride;
2920   endidx -= instride;
2921   x1[31] = _mm256_add_epi32(input[startidx], input[endidx]);
2922   x1[32] = _mm256_sub_epi32(input[startidx], input[endidx]);
2923 
2924   // stage 2
2925   __m256i x2[64];
2926   fdct64_stage2_avx2(x1, x2, &cospi_m32, &cospi_p32, &__rounding, cos_bit);
2927   // stage 3
2928   fdct64_stage3_avx2(x2, x1, &cospi_m32, &cospi_p32, &__rounding, cos_bit);
2929   // stage 4
2930   fdct64_stage4_avx2(x1, x2, &cospi_m32, &cospi_p32, &cospi_m16, &cospi_p48,
2931                      &cospi_m48, &__rounding, cos_bit);
2932   // stage 5
2933   fdct64_stage5_avx2(x2, x1, &cospi_m32, &cospi_p32, &cospi_m16, &cospi_p48,
2934                      &cospi_m48, &__rounding, cos_bit);
2935   // stage 6
2936   fdct64_stage6_avx2(x1, x2, &cospi_p16, &cospi_p32, &cospi_m16, &cospi_p48,
2937                      &cospi_m48, &cospi_m08, &cospi_p56, &cospi_m56, &cospi_m40,
2938                      &cospi_p24, &cospi_m24, &__rounding, cos_bit);
2939   // stage 7
2940   fdct64_stage7_avx2(x2, x1, &cospi_p08, &cospi_p56, &cospi_p40, &cospi_p24,
2941                      &cospi_m08, &cospi_m56, &cospi_m40, &cospi_m24,
2942                      &__rounding, cos_bit);
2943   // stage 8
2944   fdct64_stage8_avx2(x1, x2, cospi, &__rounding, cos_bit);
2945   // stage 9
2946   fdct64_stage9_avx2(x2, x1, cospi, &__rounding, cos_bit);
2947   // stage 10
2948   fdct64_stage10_avx2(x1, x2, cospi, &__rounding, cos_bit);
2949 
2950   startidx = 0 * outstride;
2951   endidx = 63 * outstride;
2952 
2953   // stage 11
2954   output[startidx] = x2[0];
2955   output[endidx] = x2[63];
2956   startidx += outstride;
2957   endidx -= outstride;
2958   output[startidx] = x2[32];
2959   output[endidx] = x2[31];
2960   startidx += outstride;
2961   endidx -= outstride;
2962   output[startidx] = x2[16];
2963   output[endidx] = x2[47];
2964   startidx += outstride;
2965   endidx -= outstride;
2966   output[startidx] = x2[48];
2967   output[endidx] = x2[15];
2968   startidx += outstride;
2969   endidx -= outstride;
2970   output[startidx] = x2[8];
2971   output[endidx] = x2[55];
2972   startidx += outstride;
2973   endidx -= outstride;
2974   output[startidx] = x2[40];
2975   output[endidx] = x2[23];
2976   startidx += outstride;
2977   endidx -= outstride;
2978   output[startidx] = x2[24];
2979   output[endidx] = x2[39];
2980   startidx += outstride;
2981   endidx -= outstride;
2982   output[startidx] = x2[56];
2983   output[endidx] = x2[7];
2984   startidx += outstride;
2985   endidx -= outstride;
2986   output[startidx] = x2[4];
2987   output[endidx] = x2[59];
2988   startidx += outstride;
2989   endidx -= outstride;
2990   output[startidx] = x2[36];
2991   output[endidx] = x2[27];
2992   startidx += outstride;
2993   endidx -= outstride;
2994   output[startidx] = x2[20];
2995   output[endidx] = x2[43];
2996   startidx += outstride;
2997   endidx -= outstride;
2998   output[startidx] = x2[52];
2999   output[endidx] = x2[11];
3000   startidx += outstride;
3001   endidx -= outstride;
3002   output[startidx] = x2[12];
3003   output[endidx] = x2[51];
3004   startidx += outstride;
3005   endidx -= outstride;
3006   output[startidx] = x2[44];
3007   output[endidx] = x2[19];
3008   startidx += outstride;
3009   endidx -= outstride;
3010   output[startidx] = x2[28];
3011   output[endidx] = x2[35];
3012   startidx += outstride;
3013   endidx -= outstride;
3014   output[startidx] = x2[60];
3015   output[endidx] = x2[3];
3016   startidx += outstride;
3017   endidx -= outstride;
3018   output[startidx] = x2[2];
3019   output[endidx] = x2[61];
3020   startidx += outstride;
3021   endidx -= outstride;
3022   output[startidx] = x2[34];
3023   output[endidx] = x2[29];
3024   startidx += outstride;
3025   endidx -= outstride;
3026   output[startidx] = x2[18];
3027   output[endidx] = x2[45];
3028   startidx += outstride;
3029   endidx -= outstride;
3030   output[startidx] = x2[50];
3031   output[endidx] = x2[13];
3032   startidx += outstride;
3033   endidx -= outstride;
3034   output[startidx] = x2[10];
3035   output[endidx] = x2[53];
3036   startidx += outstride;
3037   endidx -= outstride;
3038   output[startidx] = x2[42];
3039   output[endidx] = x2[21];
3040   startidx += outstride;
3041   endidx -= outstride;
3042   output[startidx] = x2[26];
3043   output[endidx] = x2[37];
3044   startidx += outstride;
3045   endidx -= outstride;
3046   output[startidx] = x2[58];
3047   output[endidx] = x2[5];
3048   startidx += outstride;
3049   endidx -= outstride;
3050   output[startidx] = x2[6];
3051   output[endidx] = x2[57];
3052   startidx += outstride;
3053   endidx -= outstride;
3054   output[startidx] = x2[38];
3055   output[endidx] = x2[25];
3056   startidx += outstride;
3057   endidx -= outstride;
3058   output[startidx] = x2[22];
3059   output[endidx] = x2[41];
3060   startidx += outstride;
3061   endidx -= outstride;
3062   output[startidx] = x2[54];
3063   output[endidx] = x2[9];
3064   startidx += outstride;
3065   endidx -= outstride;
3066   output[startidx] = x2[14];
3067   output[endidx] = x2[49];
3068   startidx += outstride;
3069   endidx -= outstride;
3070   output[startidx] = x2[46];
3071   output[endidx] = x2[17];
3072   startidx += outstride;
3073   endidx -= outstride;
3074   output[startidx] = x2[30];
3075   output[endidx] = x2[33];
3076   startidx += outstride;
3077   endidx -= outstride;
3078   output[startidx] = x2[62];
3079   output[endidx] = x2[1];
3080 }
av1_fwd_txfm2d_64x64_avx2(const int16_t * input,int32_t * output,int stride,TX_TYPE tx_type,int bd)3081 void av1_fwd_txfm2d_64x64_avx2(const int16_t *input, int32_t *output,
3082                                int stride, TX_TYPE tx_type, int bd) {
3083   (void)bd;
3084   (void)tx_type;
3085   assert(tx_type == DCT_DCT);
3086   const TX_SIZE tx_size = TX_64X64;
3087   __m256i buf0[512], buf1[512];
3088   const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
3089   const int txw_idx = get_txw_idx(tx_size);
3090   const int txh_idx = get_txh_idx(tx_size);
3091   const int cos_bit_col = av1_fwd_cos_bit_col[txw_idx][txh_idx];
3092   const int cos_bit_row = av1_fwd_cos_bit_row[txw_idx][txh_idx];
3093   const int width = tx_size_wide[tx_size];
3094   const int height = tx_size_high[tx_size];
3095   const transform_1d_avx2 col_txfm = fdct64_avx2;
3096   const transform_1d_avx2 row_txfm = fdct64_avx2;
3097   const int width_div16 = (width >> 4);
3098   const int width_div8 = (width >> 3);
3099   int r, c;
3100   for (int i = 0; i < width_div16; i++) {
3101     load_buffer_16xn_avx2(input + (i << 4), &buf0[i << 1], stride, height,
3102                           width_div8, 0, 0);
3103     round_shift_32_8xn_avx2(&buf0[i << 1], height, shift[0], width_div8);
3104     round_shift_32_8xn_avx2(&buf0[(i << 1) + 1], height, shift[0], width_div8);
3105     col_txfm(&buf0[i << 1], &buf0[i << 1], cos_bit_col, width_div8, width_div8);
3106     col_txfm(&buf0[(i << 1) + 1], &buf0[(i << 1) + 1], cos_bit_col, width_div8,
3107              width_div8);
3108     round_shift_32_8xn_avx2(&buf0[i << 1], height, shift[1], width_div8);
3109     round_shift_32_8xn_avx2(&buf0[(i << 1) + 1], height, shift[1], width_div8);
3110   }
3111 
3112   for (r = 0; r < height; r += 8) {
3113     for (c = 0; c < width_div8; c++) {
3114       fwd_txfm_transpose_8x8_avx2(&buf0[r * width_div8 + c],
3115                                   &buf1[c * 8 * width_div8 + (r >> 3)],
3116                                   width_div8, width_div8);
3117     }
3118   }
3119 
3120   for (int i = 0; i < 2; i++) {
3121     row_txfm(&buf1[i << 1], &buf0[i << 1], cos_bit_row, width_div8,
3122              width_div16);
3123     row_txfm(&buf1[(i << 1) + 1], &buf0[(i << 1) + 1], cos_bit_row, width_div8,
3124              width_div16);
3125     round_shift_32_8xn_avx2(&buf0[i << 1], (height >> 1), shift[2],
3126                             width_div16);
3127     round_shift_32_8xn_avx2(&buf0[(i << 1) + 1], (height >> 1), shift[2],
3128                             width_div16);
3129   }
3130 
3131   store_buffer_avx2(buf0, output, 8, 128);
3132 }
3133