FFmpeg
vp9_idct_lsx.c
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1 /*
2  * Copyright (c) 2021 Loongson Technology Corporation Limited
3  * Contributed by Jin Bo <jinbo@loongson.cn>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavcodec/vp9dsp.h"
23 #include "libavutil/loongarch/loongson_intrinsics.h"
24 #include "vp9dsp_loongarch.h"
25 #include "libavutil/attributes.h"
26 
27 #define VP9_DCT_CONST_BITS 14
28 #define ALLOC_ALIGNED(align) __attribute__ ((aligned(align)))
29 #define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n) - 1))) >> (n))
30 
31 const int32_t cospi_1_64 = 16364;
32 const int32_t cospi_2_64 = 16305;
33 const int32_t cospi_3_64 = 16207;
34 const int32_t cospi_4_64 = 16069;
35 const int32_t cospi_5_64 = 15893;
36 const int32_t cospi_6_64 = 15679;
37 const int32_t cospi_7_64 = 15426;
38 const int32_t cospi_8_64 = 15137;
39 const int32_t cospi_9_64 = 14811;
40 const int32_t cospi_10_64 = 14449;
41 const int32_t cospi_11_64 = 14053;
42 const int32_t cospi_12_64 = 13623;
43 const int32_t cospi_13_64 = 13160;
44 const int32_t cospi_14_64 = 12665;
45 const int32_t cospi_15_64 = 12140;
46 const int32_t cospi_16_64 = 11585;
47 const int32_t cospi_17_64 = 11003;
48 const int32_t cospi_18_64 = 10394;
49 const int32_t cospi_19_64 = 9760;
50 const int32_t cospi_20_64 = 9102;
51 const int32_t cospi_21_64 = 8423;
52 const int32_t cospi_22_64 = 7723;
53 const int32_t cospi_23_64 = 7005;
54 const int32_t cospi_24_64 = 6270;
55 const int32_t cospi_25_64 = 5520;
56 const int32_t cospi_26_64 = 4756;
57 const int32_t cospi_27_64 = 3981;
58 const int32_t cospi_28_64 = 3196;
59 const int32_t cospi_29_64 = 2404;
60 const int32_t cospi_30_64 = 1606;
61 const int32_t cospi_31_64 = 804;
62 
63 const int32_t sinpi_1_9 = 5283;
64 const int32_t sinpi_2_9 = 9929;
65 const int32_t sinpi_3_9 = 13377;
66 const int32_t sinpi_4_9 = 15212;
67 
68 #define VP9_DOTP_CONST_PAIR(reg0, reg1, cnst0, cnst1, out0, out1) \
69 { \
70  __m128i k0_m = __lsx_vreplgr2vr_h(cnst0); \
71  __m128i s0_m, s1_m, s2_m, s3_m; \
72  \
73  s0_m = __lsx_vreplgr2vr_h(cnst1); \
74  k0_m = __lsx_vpackev_h(s0_m, k0_m); \
75  \
76  s1_m = __lsx_vilvl_h(__lsx_vneg_h(reg1), reg0); \
77  s0_m = __lsx_vilvh_h(__lsx_vneg_h(reg1), reg0); \
78  s3_m = __lsx_vilvl_h(reg0, reg1); \
79  s2_m = __lsx_vilvh_h(reg0, reg1); \
80  DUP2_ARG2(__lsx_vdp2_w_h, s1_m, k0_m, s0_m, k0_m, s1_m, s0_m); \
81  DUP2_ARG2(__lsx_vsrari_w, s1_m, VP9_DCT_CONST_BITS, \
82  s0_m, VP9_DCT_CONST_BITS, s1_m, s0_m); \
83  out0 = __lsx_vpickev_h(s0_m, s1_m); \
84  DUP2_ARG2(__lsx_vdp2_w_h, s3_m, k0_m, s2_m, k0_m, s1_m, s0_m); \
85  DUP2_ARG2(__lsx_vsrari_w, s1_m, VP9_DCT_CONST_BITS, \
86  s0_m, VP9_DCT_CONST_BITS, s1_m, s0_m); \
87  out1 = __lsx_vpickev_h(s0_m, s1_m); \
88 }
89 
90 #define VP9_SET_COSPI_PAIR(c0_h, c1_h) \
91 ( { \
92  __m128i out0_m, r0_m, r1_m; \
93  \
94  r0_m = __lsx_vreplgr2vr_h(c0_h); \
95  r1_m = __lsx_vreplgr2vr_h(c1_h); \
96  out0_m = __lsx_vpackev_h(r1_m, r0_m); \
97  \
98  out0_m; \
99 } )
100 
101 #define VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3) \
102 { \
103  uint8_t *dst_m = (uint8_t *) (dst); \
104  __m128i dst0_m, dst1_m, dst2_m, dst3_m; \
105  __m128i tmp0_m, tmp1_m; \
106  __m128i res0_m, res1_m, res2_m, res3_m; \
107  __m128i zero_m = __lsx_vldi(0); \
108  DUP4_ARG2(__lsx_vld, dst_m, 0, dst_m + dst_stride, 0, \
109  dst_m + 2 * dst_stride, 0, dst_m + 3 * dst_stride, 0, \
110  dst0_m, dst1_m, dst2_m, dst3_m); \
111  DUP4_ARG2(__lsx_vilvl_b, zero_m, dst0_m, zero_m, dst1_m, zero_m, \
112  dst2_m, zero_m, dst3_m, res0_m, res1_m, res2_m, res3_m);\
113  DUP4_ARG2(__lsx_vadd_h, res0_m, in0, res1_m, in1, res2_m, in2, \
114  res3_m, in3, res0_m, res1_m, res2_m, res3_m); \
115  DUP4_ARG1(__lsx_vclip255_h, res0_m, res1_m, res2_m, res3_m, \
116  res0_m, res1_m, res2_m, res3_m); \
117  DUP2_ARG2(__lsx_vpickev_b, res1_m, res0_m, res3_m, res2_m, \
118  tmp0_m, tmp1_m); \
119  __lsx_vstelm_d(tmp0_m, dst_m, 0, 0); \
120  __lsx_vstelm_d(tmp0_m, dst_m + dst_stride, 0, 1); \
121  __lsx_vstelm_d(tmp1_m, dst_m + 2 * dst_stride, 0, 0); \
122  __lsx_vstelm_d(tmp1_m, dst_m + 3 * dst_stride, 0, 1); \
123 }
124 
125 #define VP9_UNPCK_UB_SH(in, out_h, out_l) \
126 { \
127  __m128i zero = __lsx_vldi(0); \
128  out_l = __lsx_vilvl_b(zero, in); \
129  out_h = __lsx_vilvh_b(zero, in); \
130 }
131 
132 #define VP9_ILVLTRANS4x8_H(in0, in1, in2, in3, in4, in5, in6, in7, \
133  out0, out1, out2, out3, out4, out5, out6, out7) \
134 { \
135  __m128i tmp0_m, tmp1_m, tmp2_m, tmp3_m; \
136  __m128i tmp0_n, tmp1_n, tmp2_n, tmp3_n; \
137  __m128i zero_m = __lsx_vldi(0); \
138  \
139  DUP4_ARG2(__lsx_vilvl_h, in1, in0, in3, in2, in5, in4, in7, in6, \
140  tmp0_n, tmp1_n, tmp2_n, tmp3_n); \
141  tmp0_m = __lsx_vilvl_w(tmp1_n, tmp0_n); \
142  tmp2_m = __lsx_vilvh_w(tmp1_n, tmp0_n); \
143  tmp1_m = __lsx_vilvl_w(tmp3_n, tmp2_n); \
144  tmp3_m = __lsx_vilvh_w(tmp3_n, tmp2_n); \
145  \
146  out0 = __lsx_vilvl_d(tmp1_m, tmp0_m); \
147  out1 = __lsx_vilvh_d(tmp1_m, tmp0_m); \
148  out2 = __lsx_vilvl_d(tmp3_m, tmp2_m); \
149  out3 = __lsx_vilvh_d(tmp3_m, tmp2_m); \
150  \
151  out4 = zero_m; \
152  out5 = zero_m; \
153  out6 = zero_m; \
154  out7 = zero_m; \
155 }
156 
157 /* multiply and add macro */
158 #define VP9_MADD(inp0, inp1, inp2, inp3, cst0, cst1, cst2, cst3, \
159  out0, out1, out2, out3) \
160 { \
161  __m128i madd_s0_m, madd_s1_m, madd_s2_m, madd_s3_m; \
162  __m128i tmp0_m, tmp1_m, tmp2_m, tmp3_m; \
163  \
164  madd_s1_m = __lsx_vilvl_h(inp1, inp0); \
165  madd_s0_m = __lsx_vilvh_h(inp1, inp0); \
166  madd_s3_m = __lsx_vilvl_h(inp3, inp2); \
167  madd_s2_m = __lsx_vilvh_h(inp3, inp2); \
168  DUP4_ARG2(__lsx_vdp2_w_h, madd_s1_m, cst0, madd_s0_m, cst0, \
169  madd_s1_m, cst1, madd_s0_m, cst1, tmp0_m, tmp1_m, \
170  tmp2_m, tmp3_m); \
171  DUP4_ARG2(__lsx_vsrari_w, tmp0_m, VP9_DCT_CONST_BITS, tmp1_m, \
172  VP9_DCT_CONST_BITS, tmp2_m, VP9_DCT_CONST_BITS, tmp3_m, \
173  VP9_DCT_CONST_BITS, tmp0_m, tmp1_m, tmp2_m, tmp3_m); \
174  DUP2_ARG2(__lsx_vpickev_h, tmp1_m, tmp0_m, tmp3_m, tmp2_m, out0, out1); \
175  DUP4_ARG2(__lsx_vdp2_w_h, madd_s3_m, cst2, madd_s2_m, cst2, madd_s3_m, \
176  cst3, madd_s2_m, cst3, tmp0_m, tmp1_m, tmp2_m, tmp3_m); \
177  DUP4_ARG2(__lsx_vsrari_w, tmp0_m, VP9_DCT_CONST_BITS, \
178  tmp1_m, VP9_DCT_CONST_BITS, tmp2_m, VP9_DCT_CONST_BITS, \
179  tmp3_m, VP9_DCT_CONST_BITS, tmp0_m, tmp1_m, tmp2_m, tmp3_m); \
180  DUP2_ARG2(__lsx_vpickev_h, tmp1_m, tmp0_m, tmp3_m, tmp2_m, out2, out3); \
181 }
182 
183 #define VP9_SET_CONST_PAIR(mask_h, idx1_h, idx2_h) \
184 ( { \
185  __m128i c0_m, c1_m; \
186  \
187  DUP2_ARG2(__lsx_vreplvei_h, mask_h, idx1_h, mask_h, idx2_h, c0_m, c1_m); \
188  c0_m = __lsx_vpackev_h(c1_m, c0_m); \
189  \
190  c0_m; \
191 } )
192 
193 /* idct 8x8 macro */
194 #define VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7, \
195  out0, out1, out2, out3, out4, out5, out6, out7) \
196 { \
197  __m128i tp0_m, tp1_m, tp2_m, tp3_m, tp4_m, tp5_m, tp6_m, tp7_m; \
198  __m128i k0_m, k1_m, k2_m, k3_m, res0_m, res1_m, res2_m, res3_m; \
199  __m128i tmp0_m, tmp1_m, tmp2_m, tmp3_m; \
200  v8i16 mask_m = { cospi_28_64, cospi_4_64, cospi_20_64, cospi_12_64, \
201  cospi_16_64, -cospi_4_64, -cospi_20_64, -cospi_16_64 }; \
202  \
203  k0_m = VP9_SET_CONST_PAIR(mask_m, 0, 5); \
204  k1_m = VP9_SET_CONST_PAIR(mask_m, 1, 0); \
205  k2_m = VP9_SET_CONST_PAIR(mask_m, 6, 3); \
206  k3_m = VP9_SET_CONST_PAIR(mask_m, 3, 2); \
207  VP9_MADD(in1, in7, in3, in5, k0_m, k1_m, k2_m, k3_m, in1, in7, in3, in5); \
208  DUP2_ARG2(__lsx_vsub_h, in1, in3, in7, in5, res0_m, res1_m); \
209  k0_m = VP9_SET_CONST_PAIR(mask_m, 4, 7); \
210  k1_m = __lsx_vreplvei_h(mask_m, 4); \
211  \
212  res2_m = __lsx_vilvl_h(res0_m, res1_m); \
213  res3_m = __lsx_vilvh_h(res0_m, res1_m); \
214  DUP4_ARG2(__lsx_vdp2_w_h, res2_m, k0_m, res3_m, k0_m, res2_m, k1_m, \
215  res3_m, k1_m, tmp0_m, tmp1_m, tmp2_m, tmp3_m); \
216  DUP4_ARG2(__lsx_vsrari_w, tmp0_m, VP9_DCT_CONST_BITS, \
217  tmp1_m, VP9_DCT_CONST_BITS, tmp2_m, VP9_DCT_CONST_BITS, \
218  tmp3_m, VP9_DCT_CONST_BITS, tmp0_m, tmp1_m, tmp2_m, tmp3_m); \
219  tp4_m = __lsx_vadd_h(in1, in3); \
220  DUP2_ARG2(__lsx_vpickev_h, tmp1_m, tmp0_m, tmp3_m, tmp2_m, tp5_m, tp6_m); \
221  tp7_m = __lsx_vadd_h(in7, in5); \
222  k2_m = VP9_SET_COSPI_PAIR(cospi_24_64, -cospi_8_64); \
223  k3_m = VP9_SET_COSPI_PAIR(cospi_8_64, cospi_24_64); \
224  VP9_MADD(in0, in4, in2, in6, k1_m, k0_m, k2_m, k3_m, \
225  in0, in4, in2, in6); \
226  LSX_BUTTERFLY_4_H(in0, in4, in2, in6, tp0_m, tp1_m, tp2_m, tp3_m); \
227  LSX_BUTTERFLY_8_H(tp0_m, tp1_m, tp2_m, tp3_m, tp4_m, tp5_m, tp6_m, tp7_m, \
228  out0, out1, out2, out3, out4, out5, out6, out7); \
229 }
230 
231 static av_always_inline
232 void vp9_idct8x8_1_add_lsx(int16_t *input, uint8_t *dst,
233  int32_t dst_stride)
234 {
235  int16_t out;
236  int32_t val;
237  __m128i vec;
238 
239  out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), VP9_DCT_CONST_BITS);
240  out = ROUND_POWER_OF_TWO((out * cospi_16_64), VP9_DCT_CONST_BITS);
241  val = ROUND_POWER_OF_TWO(out, 5);
242  vec = __lsx_vreplgr2vr_h(val);
243  input[0] = 0;
244 
245  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec);
246  dst += (4 * dst_stride);
247  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, vec, vec, vec, vec);
248 }
249 
250 static void vp9_idct8x8_12_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
251  int32_t dst_stride)
252 {
253  __m128i in0, in1, in2, in3, in4, in5, in6, in7;
254  __m128i s0, s1, s2, s3, s4, s5, s6, s7, k0, k1, k2, k3, m0, m1, m2, m3;
255  __m128i tmp0, tmp1, tmp2, tmp3;
256  __m128i zero = __lsx_vldi(0);
257 
258  /* load vector elements of 8x8 block */
259  DUP4_ARG2(__lsx_vld, input, 0, input, 16, input, 32, input, 48,
260  in0, in1, in2, in3);
261  DUP4_ARG2(__lsx_vld, input, 64, input, 80, input, 96, input, 112,
262  in4, in5, in6, in7);
263  __lsx_vst(zero, input, 0);
264  __lsx_vst(zero, input, 16);
265  __lsx_vst(zero, input, 32);
266  __lsx_vst(zero, input, 48);
267  __lsx_vst(zero, input, 64);
268  __lsx_vst(zero, input, 80);
269  __lsx_vst(zero, input, 96);
270  __lsx_vst(zero, input, 112);
271  DUP4_ARG2(__lsx_vilvl_d,in1, in0, in3, in2, in5, in4, in7,
272  in6, in0, in1, in2, in3);
273 
274  /* stage1 */
275  DUP2_ARG2(__lsx_vilvh_h, in3, in0, in2, in1, s0, s1);
276  k0 = VP9_SET_COSPI_PAIR(cospi_28_64, -cospi_4_64);
277  k1 = VP9_SET_COSPI_PAIR(cospi_4_64, cospi_28_64);
278  k2 = VP9_SET_COSPI_PAIR(-cospi_20_64, cospi_12_64);
279  k3 = VP9_SET_COSPI_PAIR(cospi_12_64, cospi_20_64);
280  DUP4_ARG2(__lsx_vdp2_w_h, s0, k0, s0, k1, s1, k2, s1, k3,
281  tmp0, tmp1, tmp2, tmp3);
282  DUP4_ARG2(__lsx_vsrari_w, tmp0, VP9_DCT_CONST_BITS, tmp1,
283  VP9_DCT_CONST_BITS, tmp2, VP9_DCT_CONST_BITS, tmp3,
284  VP9_DCT_CONST_BITS, tmp0, tmp1, tmp2, tmp3);
285  DUP4_ARG2(__lsx_vpickev_h, zero, tmp0, zero, tmp1, zero, tmp2, zero, tmp3,
286  s0, s1, s2, s3);
287  LSX_BUTTERFLY_4_H(s0, s1, s3, s2, s4, s7, s6, s5);
288 
289  /* stage2 */
290  DUP2_ARG2(__lsx_vilvl_h, in3, in1, in2, in0, s1, s0);
291  k0 = VP9_SET_COSPI_PAIR(cospi_16_64, cospi_16_64);
292  k1 = VP9_SET_COSPI_PAIR(cospi_16_64, -cospi_16_64);
293  k2 = VP9_SET_COSPI_PAIR(cospi_24_64, -cospi_8_64);
294  k3 = VP9_SET_COSPI_PAIR(cospi_8_64, cospi_24_64);
295  DUP4_ARG2(__lsx_vdp2_w_h, s0, k0, s0, k1, s1, k2, s1, k3,
296  tmp0, tmp1, tmp2, tmp3);
297  DUP4_ARG2(__lsx_vsrari_w, tmp0, VP9_DCT_CONST_BITS, tmp1,
298  VP9_DCT_CONST_BITS, tmp2, VP9_DCT_CONST_BITS, tmp3,
299  VP9_DCT_CONST_BITS, tmp0, tmp1, tmp2, tmp3);
300  DUP4_ARG2(__lsx_vpickev_h, zero, tmp0, zero, tmp1, zero, tmp2, zero, tmp3,
301  s0, s1, s2, s3);
302  LSX_BUTTERFLY_4_H(s0, s1, s2, s3, m0, m1, m2, m3);
303 
304  /* stage3 */
305  s0 = __lsx_vilvl_h(s6, s5);
306 
307  k1 = VP9_SET_COSPI_PAIR(-cospi_16_64, cospi_16_64);
308  DUP2_ARG2(__lsx_vdp2_w_h, s0, k1, s0, k0, tmp0, tmp1);
309  DUP2_ARG2(__lsx_vsrari_w, tmp0, VP9_DCT_CONST_BITS, tmp1,
310  VP9_DCT_CONST_BITS, tmp0, tmp1);
311  DUP2_ARG2(__lsx_vpickev_h, zero, tmp0, zero, tmp1, s2, s3);
312 
313  /* stage4 */
314  LSX_BUTTERFLY_8_H(m0, m1, m2, m3, s4, s2, s3, s7,
315  in0, in1, in2, in3, in4, in5, in6, in7);
316  VP9_ILVLTRANS4x8_H(in0, in1, in2, in3, in4, in5, in6, in7,
317  in0, in1, in2, in3, in4, in5, in6, in7);
318  VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7,
319  in0, in1, in2, in3, in4, in5, in6, in7);
320 
321  /* final rounding (add 2^4, divide by 2^5) and shift */
322  DUP4_ARG2(__lsx_vsrari_h, in0 , 5, in1, 5, in2, 5, in3, 5,
323  in0, in1, in2, in3);
324  DUP4_ARG2(__lsx_vsrari_h, in4 , 5, in5, 5, in6, 5, in7, 5,
325  in4, in5, in6, in7);
326 
327  /* add block and store 8x8 */
328  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3);
329  dst += (4 * dst_stride);
330  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7);
331 }
332 
333 static void vp9_idct8x8_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
334  int32_t dst_stride)
335 {
336  __m128i in0, in1, in2, in3, in4, in5, in6, in7;
337  __m128i zero = __lsx_vldi(0);
338 
339  /* load vector elements of 8x8 block */
340  DUP4_ARG2(__lsx_vld, input, 0, input, 16, input, 32, input, 48,
341  in0, in1, in2, in3);
342  DUP4_ARG2(__lsx_vld, input, 64, input, 80, input, 96, input, 112,
343  in4, in5, in6, in7);
344  __lsx_vst(zero, input, 0);
345  __lsx_vst(zero, input, 16);
346  __lsx_vst(zero, input, 32);
347  __lsx_vst(zero, input, 48);
348  __lsx_vst(zero, input, 64);
349  __lsx_vst(zero, input, 80);
350  __lsx_vst(zero, input, 96);
351  __lsx_vst(zero, input, 112);
352  /* 1D idct8x8 */
353  VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7,
354  in0, in1, in2, in3, in4, in5, in6, in7);
355  /* columns transform */
356  LSX_TRANSPOSE8x8_H(in0, in1, in2, in3, in4, in5, in6, in7,
357  in0, in1, in2, in3, in4, in5, in6, in7);
358  /* 1D idct8x8 */
359  VP9_IDCT8x8_1D(in0, in1, in2, in3, in4, in5, in6, in7,
360  in0, in1, in2, in3, in4, in5, in6, in7);
361  /* final rounding (add 2^4, divide by 2^5) and shift */
362  DUP4_ARG2(__lsx_vsrari_h, in0, 5, in1, 5, in2, 5, in3, 5,
363  in0, in1, in2, in3);
364  DUP4_ARG2(__lsx_vsrari_h, in4, 5, in5, 5, in6, 5, in7, 5,
365  in4, in5, in6, in7);
366  /* add block and store 8x8 */
367  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3);
368  dst += (4 * dst_stride);
369  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in4, in5, in6, in7);
370 }
371 
372 static void vp9_idct16_1d_columns_addblk_lsx(int16_t *input, uint8_t *dst,
373  int32_t dst_stride)
374 {
375  __m128i loc0, loc1, loc2, loc3;
376  __m128i reg0, reg2, reg4, reg6, reg8, reg10, reg12, reg14;
377  __m128i reg1, reg3, reg5, reg7, reg9, reg11, reg13, reg15;
378  __m128i tmp5, tmp6, tmp7;
379  __m128i zero = __lsx_vldi(0);
380  int32_t offset = dst_stride << 2;
381 
382  DUP4_ARG2(__lsx_vld, input, 32*0, input, 32*1, input, 32*2, input, 32*3,
383  reg0, reg1, reg2, reg3);
384  DUP4_ARG2(__lsx_vld, input, 32*4, input, 32*5, input, 32*6, input, 32*7,
385  reg4, reg5, reg6, reg7);
386  DUP4_ARG2(__lsx_vld, input, 32*8, input, 32*9, input, 32*10, input, 32*11,
387  reg8, reg9, reg10, reg11);
388  DUP4_ARG2(__lsx_vld, input, 32*12, input, 32*13, input, 32*14, input,
389  32*15, reg12, reg13, reg14, reg15);
390 
391  __lsx_vst(zero, input, 32*0);
392  __lsx_vst(zero, input, 32*1);
393  __lsx_vst(zero, input, 32*2);
394  __lsx_vst(zero, input, 32*3);
395  __lsx_vst(zero, input, 32*4);
396  __lsx_vst(zero, input, 32*5);
397  __lsx_vst(zero, input, 32*6);
398  __lsx_vst(zero, input, 32*7);
399  __lsx_vst(zero, input, 32*8);
400  __lsx_vst(zero, input, 32*9);
401  __lsx_vst(zero, input, 32*10);
402  __lsx_vst(zero, input, 32*11);
403  __lsx_vst(zero, input, 32*12);
404  __lsx_vst(zero, input, 32*13);
405  __lsx_vst(zero, input, 32*14);
406  __lsx_vst(zero, input, 32*15);
407 
408  VP9_DOTP_CONST_PAIR(reg2, reg14, cospi_28_64, cospi_4_64, reg2, reg14);
409  VP9_DOTP_CONST_PAIR(reg10, reg6, cospi_12_64, cospi_20_64, reg10, reg6);
410  LSX_BUTTERFLY_4_H(reg2, reg14, reg6, reg10, loc0, loc1, reg14, reg2);
411  VP9_DOTP_CONST_PAIR(reg14, reg2, cospi_16_64, cospi_16_64, loc2, loc3);
412  VP9_DOTP_CONST_PAIR(reg0, reg8, cospi_16_64, cospi_16_64, reg0, reg8);
413  VP9_DOTP_CONST_PAIR(reg4, reg12, cospi_24_64, cospi_8_64, reg4, reg12);
414  LSX_BUTTERFLY_4_H(reg8, reg0, reg4, reg12, reg2, reg6, reg10, reg14);
415 
416  reg0 = __lsx_vsub_h(reg2, loc1);
417  reg2 = __lsx_vadd_h(reg2, loc1);
418  reg12 = __lsx_vsub_h(reg14, loc0);
419  reg14 = __lsx_vadd_h(reg14, loc0);
420  reg4 = __lsx_vsub_h(reg6, loc3);
421  reg6 = __lsx_vadd_h(reg6, loc3);
422  reg8 = __lsx_vsub_h(reg10, loc2);
423  reg10 = __lsx_vadd_h(reg10, loc2);
424 
425  /* stage2 */
426  VP9_DOTP_CONST_PAIR(reg1, reg15, cospi_30_64, cospi_2_64, reg1, reg15);
427  VP9_DOTP_CONST_PAIR(reg9, reg7, cospi_14_64, cospi_18_64, loc2, loc3);
428 
429  reg9 = __lsx_vsub_h(reg1, loc2);
430  reg1 = __lsx_vadd_h(reg1, loc2);
431  reg7 = __lsx_vsub_h(reg15, loc3);
432  reg15 = __lsx_vadd_h(reg15, loc3);
433 
434  VP9_DOTP_CONST_PAIR(reg5, reg11, cospi_22_64, cospi_10_64, reg5, reg11);
435  VP9_DOTP_CONST_PAIR(reg13, reg3, cospi_6_64, cospi_26_64, loc0, loc1);
436  LSX_BUTTERFLY_4_H(loc0, loc1, reg11, reg5, reg13, reg3, reg11, reg5);
437 
438  loc1 = __lsx_vadd_h(reg15, reg3);
439  reg3 = __lsx_vsub_h(reg15, reg3);
440  loc2 = __lsx_vadd_h(reg2, loc1);
441  reg15 = __lsx_vsub_h(reg2, loc1);
442 
443  loc1 = __lsx_vadd_h(reg1, reg13);
444  reg13 = __lsx_vsub_h(reg1, reg13);
445  loc0 = __lsx_vadd_h(reg0, loc1);
446  loc1 = __lsx_vsub_h(reg0, loc1);
447  tmp6 = loc0;
448  tmp7 = loc1;
449  reg0 = loc2;
450 
451  VP9_DOTP_CONST_PAIR(reg7, reg9, cospi_24_64, cospi_8_64, reg7, reg9);
452  VP9_DOTP_CONST_PAIR(__lsx_vneg_h(reg5), __lsx_vneg_h(reg11), cospi_8_64,
453  cospi_24_64, reg5, reg11);
454 
455  loc0 = __lsx_vadd_h(reg9, reg5);
456  reg5 = __lsx_vsub_h(reg9, reg5);
457  reg2 = __lsx_vadd_h(reg6, loc0);
458  reg1 = __lsx_vsub_h(reg6, loc0);
459 
460  loc0 = __lsx_vadd_h(reg7, reg11);
461  reg11 = __lsx_vsub_h(reg7, reg11);
462  loc1 = __lsx_vadd_h(reg4, loc0);
463  loc2 = __lsx_vsub_h(reg4, loc0);
464  tmp5 = loc1;
465 
466  VP9_DOTP_CONST_PAIR(reg5, reg11, cospi_16_64, cospi_16_64, reg5, reg11);
467  LSX_BUTTERFLY_4_H(reg8, reg10, reg11, reg5, loc0, reg4, reg9, loc1);
468 
469  reg10 = loc0;
470  reg11 = loc1;
471 
472  VP9_DOTP_CONST_PAIR(reg3, reg13, cospi_16_64, cospi_16_64, reg3, reg13);
473  LSX_BUTTERFLY_4_H(reg12, reg14, reg13, reg3, reg8, reg6, reg7, reg5);
474  reg13 = loc2;
475 
476  /* Transpose and store the output */
477  reg12 = tmp5;
478  reg14 = tmp6;
479  reg3 = tmp7;
480 
481  DUP4_ARG2(__lsx_vsrari_h, reg0, 6, reg2, 6, reg4, 6, reg6, 6,
482  reg0, reg2, reg4, reg6);
483  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, reg0, reg2, reg4, reg6);
484  dst += offset;
485  DUP4_ARG2(__lsx_vsrari_h, reg8, 6, reg10, 6, reg12, 6, reg14, 6,
486  reg8, reg10, reg12, reg14);
487  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, reg8, reg10, reg12, reg14);
488  dst += offset;
489  DUP4_ARG2(__lsx_vsrari_h, reg3, 6, reg5, 6, reg11, 6, reg13, 6,
490  reg3, reg5, reg11, reg13);
491  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, reg3, reg13, reg11, reg5);
492  dst += offset;
493  DUP4_ARG2(__lsx_vsrari_h, reg1, 6, reg7, 6, reg9, 6, reg15, 6,
494  reg1, reg7, reg9, reg15);
495  VP9_ADDBLK_ST8x4_UB(dst, dst_stride, reg7, reg9, reg1, reg15);
496 }
497 
498 static void vp9_idct16_1d_columns_lsx(int16_t *input, int16_t *output)
499 {
500  __m128i loc0, loc1, loc2, loc3;
501  __m128i reg1, reg3, reg5, reg7, reg9, reg11, reg13, reg15;
502  __m128i reg0, reg2, reg4, reg6, reg8, reg10, reg12, reg14;
503  __m128i tmp5, tmp6, tmp7;
504  __m128i zero = __lsx_vldi(0);
505  int16_t *offset;
506 
507  DUP4_ARG2(__lsx_vld, input, 32*0, input, 32*1, input, 32*2, input, 32*3,
508  reg0, reg1, reg2, reg3);
509  DUP4_ARG2(__lsx_vld, input, 32*4, input, 32*5, input, 32*6, input, 32*7,
510  reg4, reg5, reg6, reg7);
511  DUP4_ARG2(__lsx_vld, input, 32*8, input, 32*9, input, 32*10, input, 32*11,
512  reg8, reg9, reg10, reg11);
513  DUP4_ARG2(__lsx_vld, input, 32*12, input, 32*13, input, 32*14, input,
514  32*15, reg12, reg13, reg14, reg15);
515 
516  __lsx_vst(zero, input, 32*0);
517  __lsx_vst(zero, input, 32*1);
518  __lsx_vst(zero, input, 32*2);
519  __lsx_vst(zero, input, 32*3);
520  __lsx_vst(zero, input, 32*4);
521  __lsx_vst(zero, input, 32*5);
522  __lsx_vst(zero, input, 32*6);
523  __lsx_vst(zero, input, 32*7);
524  __lsx_vst(zero, input, 32*8);
525  __lsx_vst(zero, input, 32*9);
526  __lsx_vst(zero, input, 32*10);
527  __lsx_vst(zero, input, 32*11);
528  __lsx_vst(zero, input, 32*12);
529  __lsx_vst(zero, input, 32*13);
530  __lsx_vst(zero, input, 32*14);
531  __lsx_vst(zero, input, 32*15);
532 
533  VP9_DOTP_CONST_PAIR(reg2, reg14, cospi_28_64, cospi_4_64, reg2, reg14);
534  VP9_DOTP_CONST_PAIR(reg10, reg6, cospi_12_64, cospi_20_64, reg10, reg6);
535  LSX_BUTTERFLY_4_H(reg2, reg14, reg6, reg10, loc0, loc1, reg14, reg2);
536  VP9_DOTP_CONST_PAIR(reg14, reg2, cospi_16_64, cospi_16_64, loc2, loc3);
537  VP9_DOTP_CONST_PAIR(reg0, reg8, cospi_16_64, cospi_16_64, reg0, reg8);
538  VP9_DOTP_CONST_PAIR(reg4, reg12, cospi_24_64, cospi_8_64, reg4, reg12);
539  LSX_BUTTERFLY_4_H(reg8, reg0, reg4, reg12, reg2, reg6, reg10, reg14);
540 
541  reg0 = __lsx_vsub_h(reg2, loc1);
542  reg2 = __lsx_vadd_h(reg2, loc1);
543  reg12 = __lsx_vsub_h(reg14, loc0);
544  reg14 = __lsx_vadd_h(reg14, loc0);
545  reg4 = __lsx_vsub_h(reg6, loc3);
546  reg6 = __lsx_vadd_h(reg6, loc3);
547  reg8 = __lsx_vsub_h(reg10, loc2);
548  reg10 = __lsx_vadd_h(reg10, loc2);
549 
550  /* stage2 */
551  VP9_DOTP_CONST_PAIR(reg1, reg15, cospi_30_64, cospi_2_64, reg1, reg15);
552  VP9_DOTP_CONST_PAIR(reg9, reg7, cospi_14_64, cospi_18_64, loc2, loc3);
553 
554  reg9 = __lsx_vsub_h(reg1, loc2);
555  reg1 = __lsx_vadd_h(reg1, loc2);
556  reg7 = __lsx_vsub_h(reg15, loc3);
557  reg15 = __lsx_vadd_h(reg15, loc3);
558 
559  VP9_DOTP_CONST_PAIR(reg5, reg11, cospi_22_64, cospi_10_64, reg5, reg11);
560  VP9_DOTP_CONST_PAIR(reg13, reg3, cospi_6_64, cospi_26_64, loc0, loc1);
561  LSX_BUTTERFLY_4_H(loc0, loc1, reg11, reg5, reg13, reg3, reg11, reg5);
562 
563  loc1 = __lsx_vadd_h(reg15, reg3);
564  reg3 = __lsx_vsub_h(reg15, reg3);
565  loc2 = __lsx_vadd_h(reg2, loc1);
566  reg15 = __lsx_vsub_h(reg2, loc1);
567 
568  loc1 = __lsx_vadd_h(reg1, reg13);
569  reg13 = __lsx_vsub_h(reg1, reg13);
570  loc0 = __lsx_vadd_h(reg0, loc1);
571  loc1 = __lsx_vsub_h(reg0, loc1);
572  tmp6 = loc0;
573  tmp7 = loc1;
574  reg0 = loc2;
575 
576  VP9_DOTP_CONST_PAIR(reg7, reg9, cospi_24_64, cospi_8_64, reg7, reg9);
577  VP9_DOTP_CONST_PAIR(__lsx_vneg_h(reg5), __lsx_vneg_h(reg11), cospi_8_64,
578  cospi_24_64, reg5, reg11);
579 
580  loc0 = __lsx_vadd_h(reg9, reg5);
581  reg5 = __lsx_vsub_h(reg9, reg5);
582  reg2 = __lsx_vadd_h(reg6, loc0);
583  reg1 = __lsx_vsub_h(reg6, loc0);
584 
585  loc0 = __lsx_vadd_h(reg7, reg11);
586  reg11 = __lsx_vsub_h(reg7, reg11);
587  loc1 = __lsx_vadd_h(reg4, loc0);
588  loc2 = __lsx_vsub_h(reg4, loc0);
589 
590  tmp5 = loc1;
591 
592  VP9_DOTP_CONST_PAIR(reg5, reg11, cospi_16_64, cospi_16_64, reg5, reg11);
593  LSX_BUTTERFLY_4_H(reg8, reg10, reg11, reg5, loc0, reg4, reg9, loc1);
594 
595  reg10 = loc0;
596  reg11 = loc1;
597 
598  VP9_DOTP_CONST_PAIR(reg3, reg13, cospi_16_64, cospi_16_64, reg3, reg13);
599  LSX_BUTTERFLY_4_H(reg12, reg14, reg13, reg3, reg8, reg6, reg7, reg5);
600  reg13 = loc2;
601 
602  /* Transpose and store the output */
603  reg12 = tmp5;
604  reg14 = tmp6;
605  reg3 = tmp7;
606 
607  /* transpose block */
608  LSX_TRANSPOSE8x8_H(reg0, reg2, reg4, reg6, reg8, reg10, reg12, reg14,
609  reg0, reg2, reg4, reg6, reg8, reg10, reg12, reg14);
610 
611  __lsx_vst(reg0, output, 32*0);
612  __lsx_vst(reg2, output, 32*1);
613  __lsx_vst(reg4, output, 32*2);
614  __lsx_vst(reg6, output, 32*3);
615  __lsx_vst(reg8, output, 32*4);
616  __lsx_vst(reg10, output, 32*5);
617  __lsx_vst(reg12, output, 32*6);
618  __lsx_vst(reg14, output, 32*7);
619 
620  /* transpose block */
621  LSX_TRANSPOSE8x8_H(reg3, reg13, reg11, reg5, reg7, reg9, reg1, reg15,
622  reg3, reg13, reg11, reg5, reg7, reg9, reg1, reg15);
623 
624  offset = output + 8;
625  __lsx_vst(reg3, offset, 32*0);
626  __lsx_vst(reg13, offset, 32*1);
627  __lsx_vst(reg11, offset, 32*2);
628  __lsx_vst(reg5, offset, 32*3);
629 
630  offset = output + 8 + 4 * 16;
631  __lsx_vst(reg7, offset, 32*0);
632  __lsx_vst(reg9, offset, 32*1);
633  __lsx_vst(reg1, offset, 32*2);
634  __lsx_vst(reg15, offset, 32*3);
635 }
636 
637 static void vp9_idct16x16_1_add_lsx(int16_t *input, uint8_t *dst,
638  int32_t dst_stride)
639 {
640  uint8_t i;
641  int16_t out;
642  __m128i vec, res0, res1, res2, res3, res4, res5, res6, res7;
643  __m128i dst0, dst1, dst2, dst3, tmp0, tmp1, tmp2, tmp3;
644  int32_t stride2 = dst_stride << 1;
645  int32_t stride3 = stride2 + dst_stride;
646  int32_t stride4 = stride2 << 1;
647 
648  out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), VP9_DCT_CONST_BITS);
649  out = ROUND_POWER_OF_TWO((out * cospi_16_64), VP9_DCT_CONST_BITS);
650  out = ROUND_POWER_OF_TWO(out, 6);
651  input[0] = 0;
652  vec = __lsx_vreplgr2vr_h(out);
653 
654  for (i = 4; i--;) {
655  dst0 = __lsx_vld(dst, 0);
656  DUP2_ARG2(__lsx_vldx, dst, dst_stride, dst, stride2, dst1, dst2);
657  dst3 = __lsx_vldx(dst, stride3);
658  VP9_UNPCK_UB_SH(dst0, res4, res0);
659  VP9_UNPCK_UB_SH(dst1, res5, res1);
660  VP9_UNPCK_UB_SH(dst2, res6, res2);
661  VP9_UNPCK_UB_SH(dst3, res7, res3);
662  DUP4_ARG2(__lsx_vadd_h, res0, vec, res1, vec, res2, vec, res3, vec,
663  res0, res1, res2, res3);
664  DUP4_ARG2(__lsx_vadd_h, res4, vec, res5, vec, res6, vec, res7, vec,
665  res4, res5, res6, res7);
666  DUP4_ARG1(__lsx_vclip255_h, res0, res1, res2, res3,
667  res0, res1, res2, res3);
668  DUP4_ARG1(__lsx_vclip255_h, res4, res5, res6, res7,
669  res4, res5, res6, res7);
670  DUP4_ARG2(__lsx_vpickev_b, res4, res0, res5, res1, res6,
671  res2, res7, res3, tmp0, tmp1, tmp2, tmp3);
672  __lsx_vst(tmp0, dst, 0);
673  __lsx_vstx(tmp1, dst, dst_stride);
674  __lsx_vstx(tmp2, dst, stride2);
675  __lsx_vstx(tmp3, dst, stride3);
676  dst += stride4;
677  }
678 }
679 
680 static void vp9_idct16x16_10_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
681  int32_t dst_stride)
682 {
683  int32_t i;
684  int16_t out_arr[16 * 16] ALLOC_ALIGNED(16);
685  int16_t *out = out_arr;
686  __m128i zero = __lsx_vldi(0);
687 
688  /* transform rows */
689  vp9_idct16_1d_columns_lsx(input, out);
690 
691  /* short case just considers top 4 rows as valid output */
692  out += 4 * 16;
693  for (i = 3; i--;) {
694  __lsx_vst(zero, out, 0);
695  __lsx_vst(zero, out, 16);
696  __lsx_vst(zero, out, 32);
697  __lsx_vst(zero, out, 48);
698  __lsx_vst(zero, out, 64);
699  __lsx_vst(zero, out, 80);
700  __lsx_vst(zero, out, 96);
701  __lsx_vst(zero, out, 112);
702  out += 64;
703  }
704 
705  out = out_arr;
706 
707  /* transform columns */
708  for (i = 0; i < 2; i++) {
709  /* process 8 * 16 block */
710  vp9_idct16_1d_columns_addblk_lsx((out + (i << 3)), (dst + (i << 3)),
711  dst_stride);
712  }
713 }
714 
715 static void vp9_idct16x16_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
716  int32_t dst_stride)
717 {
718  int32_t i;
719  int16_t out_arr[16 * 16] ALLOC_ALIGNED(16);
720  int16_t *out = out_arr;
721 
722  /* transform rows */
723  for (i = 0; i < 2; i++) {
724  /* process 8 * 16 block */
725  vp9_idct16_1d_columns_lsx((input + (i << 3)), (out + (i << 7)));
726  }
727 
728  /* transform columns */
729  for (i = 0; i < 2; i++) {
730  /* process 8 * 16 block */
731  vp9_idct16_1d_columns_addblk_lsx((out + (i << 3)), (dst + (i << 3)),
732  dst_stride);
733  }
734 }
735 
736 static void vp9_idct_butterfly_transpose_store(int16_t *tmp_buf,
737  int16_t *tmp_eve_buf,
738  int16_t *tmp_odd_buf,
739  int16_t *dst)
740 {
741  __m128i vec0, vec1, vec2, vec3, loc0, loc1, loc2, loc3;
742  __m128i m0, m1, m2, m3, m4, m5, m6, m7, n0, n1, n2, n3, n4, n5, n6, n7;
743 
744  /* FINAL BUTTERFLY : Dependency on Even & Odd */
745  vec0 = __lsx_vld(tmp_odd_buf, 0);
746  vec1 = __lsx_vld(tmp_odd_buf, 9 * 16);
747  vec2 = __lsx_vld(tmp_odd_buf, 14 * 16);
748  vec3 = __lsx_vld(tmp_odd_buf, 6 * 16);
749  loc0 = __lsx_vld(tmp_eve_buf, 0);
750  loc1 = __lsx_vld(tmp_eve_buf, 8 * 16);
751  loc2 = __lsx_vld(tmp_eve_buf, 4 * 16);
752  loc3 = __lsx_vld(tmp_eve_buf, 12 * 16);
753 
754  DUP4_ARG2(__lsx_vadd_h,loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
755  m0, m4, m2, m6);
756 
757  #define SUB(a, b) __lsx_vsub_h(a, b)
758 
759  __lsx_vst(SUB(loc0, vec3), tmp_buf, 31 * 16);
760  __lsx_vst(SUB(loc1, vec2), tmp_buf, 23 * 16);
761  __lsx_vst(SUB(loc2, vec1), tmp_buf, 27 * 16);
762  __lsx_vst(SUB(loc3, vec0), tmp_buf, 19 * 16);
763 
764  /* Load 8 & Store 8 */
765  vec0 = __lsx_vld(tmp_odd_buf, 4 * 16);
766  vec1 = __lsx_vld(tmp_odd_buf, 13 * 16);
767  vec2 = __lsx_vld(tmp_odd_buf, 10 * 16);
768  vec3 = __lsx_vld(tmp_odd_buf, 3 * 16);
769  loc0 = __lsx_vld(tmp_eve_buf, 2 * 16);
770  loc1 = __lsx_vld(tmp_eve_buf, 10 * 16);
771  loc2 = __lsx_vld(tmp_eve_buf, 6 * 16);
772  loc3 = __lsx_vld(tmp_eve_buf, 14 * 16);
773 
774  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
775  m1, m5, m3, m7);
776 
777  __lsx_vst(SUB(loc0, vec3), tmp_buf, 29 * 16);
778  __lsx_vst(SUB(loc1, vec2), tmp_buf, 21 * 16);
779  __lsx_vst(SUB(loc2, vec1), tmp_buf, 25 * 16);
780  __lsx_vst(SUB(loc3, vec0), tmp_buf, 17 * 16);
781 
782  /* Load 8 & Store 8 */
783  vec0 = __lsx_vld(tmp_odd_buf, 2 * 16);
784  vec1 = __lsx_vld(tmp_odd_buf, 11 * 16);
785  vec2 = __lsx_vld(tmp_odd_buf, 12 * 16);
786  vec3 = __lsx_vld(tmp_odd_buf, 7 * 16);
787  loc0 = __lsx_vld(tmp_eve_buf, 1 * 16);
788  loc1 = __lsx_vld(tmp_eve_buf, 9 * 16);
789  loc2 = __lsx_vld(tmp_eve_buf, 5 * 16);
790  loc3 = __lsx_vld(tmp_eve_buf, 13 * 16);
791 
792  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
793  n0, n4, n2, n6);
794 
795  __lsx_vst(SUB(loc0, vec3), tmp_buf, 30 * 16);
796  __lsx_vst(SUB(loc1, vec2), tmp_buf, 22 * 16);
797  __lsx_vst(SUB(loc2, vec1), tmp_buf, 26 * 16);
798  __lsx_vst(SUB(loc3, vec0), tmp_buf, 18 * 16);
799 
800  /* Load 8 & Store 8 */
801  vec0 = __lsx_vld(tmp_odd_buf, 5 * 16);
802  vec1 = __lsx_vld(tmp_odd_buf, 15 * 16);
803  vec2 = __lsx_vld(tmp_odd_buf, 8 * 16);
804  vec3 = __lsx_vld(tmp_odd_buf, 1 * 16);
805  loc0 = __lsx_vld(tmp_eve_buf, 3 * 16);
806  loc1 = __lsx_vld(tmp_eve_buf, 11 * 16);
807  loc2 = __lsx_vld(tmp_eve_buf, 7 * 16);
808  loc3 = __lsx_vld(tmp_eve_buf, 15 * 16);
809 
810  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
811  n1, n5, n3, n7);
812 
813  __lsx_vst(SUB(loc0, vec3), tmp_buf, 28 * 16);
814  __lsx_vst(SUB(loc1, vec2), tmp_buf, 20 * 16);
815  __lsx_vst(SUB(loc2, vec1), tmp_buf, 24 * 16);
816  __lsx_vst(SUB(loc3, vec0), tmp_buf, 16 * 16);
817 
818  /* Transpose : 16 vectors */
819  /* 1st & 2nd 8x8 */
820  LSX_TRANSPOSE8x8_H(m0, n0, m1, n1, m2, n2, m3, n3,
821  m0, n0, m1, n1, m2, n2, m3, n3);
822  __lsx_vst(m0, dst, 0);
823  __lsx_vst(n0, dst, 32 * 2);
824  __lsx_vst(m1, dst, 32 * 4);
825  __lsx_vst(n1, dst, 32 * 6);
826  __lsx_vst(m2, dst, 32 * 8);
827  __lsx_vst(n2, dst, 32 * 10);
828  __lsx_vst(m3, dst, 32 * 12);
829  __lsx_vst(n3, dst, 32 * 14);
830 
831  LSX_TRANSPOSE8x8_H(m4, n4, m5, n5, m6, n6, m7, n7,
832  m4, n4, m5, n5, m6, n6, m7, n7);
833 
834  __lsx_vst(m4, dst, 16);
835  __lsx_vst(n4, dst, 16 + 32 * 2);
836  __lsx_vst(m5, dst, 16 + 32 * 4);
837  __lsx_vst(n5, dst, 16 + 32 * 6);
838  __lsx_vst(m6, dst, 16 + 32 * 8);
839  __lsx_vst(n6, dst, 16 + 32 * 10);
840  __lsx_vst(m7, dst, 16 + 32 * 12);
841  __lsx_vst(n7, dst, 16 + 32 * 14);
842 
843  /* 3rd & 4th 8x8 */
844  DUP4_ARG2(__lsx_vld, tmp_buf, 16 * 16, tmp_buf, 16 * 17,
845  tmp_buf, 16 * 18, tmp_buf, 16 * 19, m0, n0, m1, n1);
846  DUP4_ARG2(__lsx_vld, tmp_buf, 16 * 20, tmp_buf, 16 * 21,
847  tmp_buf, 16 * 22, tmp_buf, 16 * 23, m2, n2, m3, n3);
848 
849  DUP4_ARG2(__lsx_vld, tmp_buf, 16 * 24, tmp_buf, 16 * 25,
850  tmp_buf, 16 * 26, tmp_buf, 16 * 27, m4, n4, m5, n5);
851  DUP4_ARG2(__lsx_vld, tmp_buf, 16 * 28, tmp_buf, 16 * 29,
852  tmp_buf, 16 * 30, tmp_buf, 16 * 31, m6, n6, m7, n7);
853 
854  LSX_TRANSPOSE8x8_H(m0, n0, m1, n1, m2, n2, m3, n3,
855  m0, n0, m1, n1, m2, n2, m3, n3);
856 
857  __lsx_vst(m0, dst, 32);
858  __lsx_vst(n0, dst, 32 + 32 * 2);
859  __lsx_vst(m1, dst, 32 + 32 * 4);
860  __lsx_vst(n1, dst, 32 + 32 * 6);
861  __lsx_vst(m2, dst, 32 + 32 * 8);
862  __lsx_vst(n2, dst, 32 + 32 * 10);
863  __lsx_vst(m3, dst, 32 + 32 * 12);
864  __lsx_vst(n3, dst, 32 + 32 * 14);
865 
866  LSX_TRANSPOSE8x8_H(m4, n4, m5, n5, m6, n6, m7, n7,
867  m4, n4, m5, n5, m6, n6, m7, n7);
868 
869  __lsx_vst(m4, dst, 48);
870  __lsx_vst(n4, dst, 48 + 32 * 2);
871  __lsx_vst(m5, dst, 48 + 32 * 4);
872  __lsx_vst(n5, dst, 48 + 32 * 6);
873  __lsx_vst(m6, dst, 48 + 32 * 8);
874  __lsx_vst(n6, dst, 48 + 32 * 10);
875  __lsx_vst(m7, dst, 48 + 32 * 12);
876  __lsx_vst(n7, dst, 48 + 32 * 14);
877 }
878 
879 static void vp9_idct8x32_column_even_process_store(int16_t *tmp_buf,
880  int16_t *tmp_eve_buf)
881 {
882  __m128i vec0, vec1, vec2, vec3, loc0, loc1, loc2, loc3;
883  __m128i reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
884  __m128i stp0, stp1, stp2, stp3, stp4, stp5, stp6, stp7;
885  __m128i zero = __lsx_vldi(0);
886 
887  /* Even stage 1 */
888  DUP4_ARG2(__lsx_vld, tmp_buf, 0, tmp_buf, 32 * 8,
889  tmp_buf, 32 * 16, tmp_buf, 32 * 24, reg0, reg1, reg2, reg3);
890  DUP4_ARG2(__lsx_vld, tmp_buf, 32 * 32, tmp_buf, 32 * 40,
891  tmp_buf, 32 * 48, tmp_buf, 32 * 56, reg4, reg5, reg6, reg7);
892 
893  __lsx_vst(zero, tmp_buf, 0);
894  __lsx_vst(zero, tmp_buf, 32 * 8);
895  __lsx_vst(zero, tmp_buf, 32 * 16);
896  __lsx_vst(zero, tmp_buf, 32 * 24);
897  __lsx_vst(zero, tmp_buf, 32 * 32);
898  __lsx_vst(zero, tmp_buf, 32 * 40);
899  __lsx_vst(zero, tmp_buf, 32 * 48);
900  __lsx_vst(zero, tmp_buf, 32 * 56);
901 
902  tmp_buf += (2 * 32);
903 
904  VP9_DOTP_CONST_PAIR(reg1, reg7, cospi_28_64, cospi_4_64, reg1, reg7);
905  VP9_DOTP_CONST_PAIR(reg5, reg3, cospi_12_64, cospi_20_64, reg5, reg3);
906  LSX_BUTTERFLY_4_H(reg1, reg7, reg3, reg5, vec1, vec3, vec2, vec0);
907  VP9_DOTP_CONST_PAIR(vec2, vec0, cospi_16_64, cospi_16_64, loc2, loc3);
908 
909  loc1 = vec3;
910  loc0 = vec1;
911 
912  VP9_DOTP_CONST_PAIR(reg0, reg4, cospi_16_64, cospi_16_64, reg0, reg4);
913  VP9_DOTP_CONST_PAIR(reg2, reg6, cospi_24_64, cospi_8_64, reg2, reg6);
914  LSX_BUTTERFLY_4_H(reg4, reg0, reg2, reg6, vec1, vec3, vec2, vec0);
915  LSX_BUTTERFLY_4_H(vec0, vec1, loc1, loc0, stp3, stp0, stp7, stp4);
916  LSX_BUTTERFLY_4_H(vec2, vec3, loc3, loc2, stp2, stp1, stp6, stp5);
917 
918  /* Even stage 2 */
919  /* Load 8 */
920  DUP4_ARG2(__lsx_vld, tmp_buf, 0, tmp_buf, 32 * 8,
921  tmp_buf, 32 * 16, tmp_buf, 32 * 24, reg0, reg1, reg2, reg3);
922  DUP4_ARG2(__lsx_vld, tmp_buf, 32 * 32, tmp_buf, 32 * 40,
923  tmp_buf, 32 * 48, tmp_buf, 32 * 56, reg4, reg5, reg6, reg7);
924 
925  __lsx_vst(zero, tmp_buf, 0);
926  __lsx_vst(zero, tmp_buf, 32 * 8);
927  __lsx_vst(zero, tmp_buf, 32 * 16);
928  __lsx_vst(zero, tmp_buf, 32 * 24);
929  __lsx_vst(zero, tmp_buf, 32 * 32);
930  __lsx_vst(zero, tmp_buf, 32 * 40);
931  __lsx_vst(zero, tmp_buf, 32 * 48);
932  __lsx_vst(zero, tmp_buf, 32 * 56);
933 
934  VP9_DOTP_CONST_PAIR(reg0, reg7, cospi_30_64, cospi_2_64, reg0, reg7);
935  VP9_DOTP_CONST_PAIR(reg4, reg3, cospi_14_64, cospi_18_64, reg4, reg3);
936  VP9_DOTP_CONST_PAIR(reg2, reg5, cospi_22_64, cospi_10_64, reg2, reg5);
937  VP9_DOTP_CONST_PAIR(reg6, reg1, cospi_6_64, cospi_26_64, reg6, reg1);
938 
939  vec0 = __lsx_vadd_h(reg0, reg4);
940  reg0 = __lsx_vsub_h(reg0, reg4);
941  reg4 = __lsx_vadd_h(reg6, reg2);
942  reg6 = __lsx_vsub_h(reg6, reg2);
943  reg2 = __lsx_vadd_h(reg1, reg5);
944  reg1 = __lsx_vsub_h(reg1, reg5);
945  reg5 = __lsx_vadd_h(reg7, reg3);
946  reg7 = __lsx_vsub_h(reg7, reg3);
947  reg3 = vec0;
948 
949  vec1 = reg2;
950  reg2 = __lsx_vadd_h(reg3, reg4);
951  reg3 = __lsx_vsub_h(reg3, reg4);
952  reg4 = __lsx_vsub_h(reg5, vec1);
953  reg5 = __lsx_vadd_h(reg5, vec1);
954 
955  VP9_DOTP_CONST_PAIR(reg7, reg0, cospi_24_64, cospi_8_64, reg0, reg7);
956  VP9_DOTP_CONST_PAIR(__lsx_vneg_h(reg6), reg1, cospi_24_64, cospi_8_64,
957  reg6, reg1);
958 
959  vec0 = __lsx_vsub_h(reg0, reg6);
960  reg0 = __lsx_vadd_h(reg0, reg6);
961  vec1 = __lsx_vsub_h(reg7, reg1);
962  reg7 = __lsx_vadd_h(reg7, reg1);
963 
964  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_16_64, cospi_16_64, reg6, reg1);
965  VP9_DOTP_CONST_PAIR(reg4, reg3, cospi_16_64, cospi_16_64, reg3, reg4);
966 
967  /* Even stage 3 : Dependency on Even stage 1 & Even stage 2 */
968  /* Store 8 */
969  LSX_BUTTERFLY_4_H(stp0, stp1, reg7, reg5, loc1, loc3, loc2, loc0);
970  __lsx_vst(loc1, tmp_eve_buf, 0);
971  __lsx_vst(loc3, tmp_eve_buf, 16);
972  __lsx_vst(loc2, tmp_eve_buf, 14 * 16);
973  __lsx_vst(loc0, tmp_eve_buf, 14 * 16 + 16);
974  LSX_BUTTERFLY_4_H(stp2, stp3, reg4, reg1, loc1, loc3, loc2, loc0);
975  __lsx_vst(loc1, tmp_eve_buf, 2 * 16);
976  __lsx_vst(loc3, tmp_eve_buf, 2 * 16 + 16);
977  __lsx_vst(loc2, tmp_eve_buf, 12 * 16);
978  __lsx_vst(loc0, tmp_eve_buf, 12 * 16 + 16);
979 
980  /* Store 8 */
981  LSX_BUTTERFLY_4_H(stp4, stp5, reg6, reg3, loc1, loc3, loc2, loc0);
982  __lsx_vst(loc1, tmp_eve_buf, 4 * 16);
983  __lsx_vst(loc3, tmp_eve_buf, 4 * 16 + 16);
984  __lsx_vst(loc2, tmp_eve_buf, 10 * 16);
985  __lsx_vst(loc0, tmp_eve_buf, 10 * 16 + 16);
986 
987  LSX_BUTTERFLY_4_H(stp6, stp7, reg2, reg0, loc1, loc3, loc2, loc0);
988  __lsx_vst(loc1, tmp_eve_buf, 6 * 16);
989  __lsx_vst(loc3, tmp_eve_buf, 6 * 16 + 16);
990  __lsx_vst(loc2, tmp_eve_buf, 8 * 16);
991  __lsx_vst(loc0, tmp_eve_buf, 8 * 16 + 16);
992 }
993 
994 static void vp9_idct8x32_column_odd_process_store(int16_t *tmp_buf,
995  int16_t *tmp_odd_buf)
996 {
997  __m128i vec0, vec1, vec2, vec3, loc0, loc1, loc2, loc3;
998  __m128i reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
999  __m128i zero = __lsx_vldi(0);
1000 
1001  /* Odd stage 1 */
1002  reg0 = __lsx_vld(tmp_buf, 64);
1003  reg1 = __lsx_vld(tmp_buf, 7 * 64);
1004  reg2 = __lsx_vld(tmp_buf, 9 * 64);
1005  reg3 = __lsx_vld(tmp_buf, 15 * 64);
1006  reg4 = __lsx_vld(tmp_buf, 17 * 64);
1007  reg5 = __lsx_vld(tmp_buf, 23 * 64);
1008  reg6 = __lsx_vld(tmp_buf, 25 * 64);
1009  reg7 = __lsx_vld(tmp_buf, 31 * 64);
1010 
1011  __lsx_vst(zero, tmp_buf, 64);
1012  __lsx_vst(zero, tmp_buf, 7 * 64);
1013  __lsx_vst(zero, tmp_buf, 9 * 64);
1014  __lsx_vst(zero, tmp_buf, 15 * 64);
1015  __lsx_vst(zero, tmp_buf, 17 * 64);
1016  __lsx_vst(zero, tmp_buf, 23 * 64);
1017  __lsx_vst(zero, tmp_buf, 25 * 64);
1018  __lsx_vst(zero, tmp_buf, 31 * 64);
1019 
1020  VP9_DOTP_CONST_PAIR(reg0, reg7, cospi_31_64, cospi_1_64, reg0, reg7);
1021  VP9_DOTP_CONST_PAIR(reg4, reg3, cospi_15_64, cospi_17_64, reg3, reg4);
1022  VP9_DOTP_CONST_PAIR(reg2, reg5, cospi_23_64, cospi_9_64, reg2, reg5);
1023  VP9_DOTP_CONST_PAIR(reg6, reg1, cospi_7_64, cospi_25_64, reg1, reg6);
1024 
1025  vec0 = __lsx_vadd_h(reg0, reg3);
1026  reg0 = __lsx_vsub_h(reg0, reg3);
1027  reg3 = __lsx_vadd_h(reg7, reg4);
1028  reg7 = __lsx_vsub_h(reg7, reg4);
1029  reg4 = __lsx_vadd_h(reg1, reg2);
1030  reg1 = __lsx_vsub_h(reg1, reg2);
1031  reg2 = __lsx_vadd_h(reg6, reg5);
1032  reg6 = __lsx_vsub_h(reg6, reg5);
1033  reg5 = vec0;
1034 
1035  /* 4 Stores */
1036  DUP2_ARG2(__lsx_vadd_h, reg5, reg4, reg3, reg2, vec0, vec1);
1037  __lsx_vst(vec0, tmp_odd_buf, 4 * 16);
1038  __lsx_vst(vec1, tmp_odd_buf, 4 * 16 + 16);
1039  DUP2_ARG2(__lsx_vsub_h, reg5, reg4, reg3, reg2, vec0, vec1);
1040  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_24_64, cospi_8_64, vec0, vec1);
1041  __lsx_vst(vec0, tmp_odd_buf, 0);
1042  __lsx_vst(vec1, tmp_odd_buf, 16);
1043 
1044  /* 4 Stores */
1045  VP9_DOTP_CONST_PAIR(reg7, reg0, cospi_28_64, cospi_4_64, reg0, reg7);
1046  VP9_DOTP_CONST_PAIR(reg6, reg1, -cospi_4_64, cospi_28_64, reg1, reg6);
1047  LSX_BUTTERFLY_4_H(reg0, reg7, reg6, reg1, vec0, vec1, vec2, vec3);
1048  __lsx_vst(vec0, tmp_odd_buf, 6 * 16);
1049  __lsx_vst(vec1, tmp_odd_buf, 6 * 16 + 16);
1050  VP9_DOTP_CONST_PAIR(vec2, vec3, cospi_24_64, cospi_8_64, vec2, vec3);
1051  __lsx_vst(vec2, tmp_odd_buf, 2 * 16);
1052  __lsx_vst(vec3, tmp_odd_buf, 2 * 16 + 16);
1053 
1054  /* Odd stage 2 */
1055  /* 8 loads */
1056  reg0 = __lsx_vld(tmp_buf, 3 * 64);
1057  reg1 = __lsx_vld(tmp_buf, 5 * 64);
1058  reg2 = __lsx_vld(tmp_buf, 11 * 64);
1059  reg3 = __lsx_vld(tmp_buf, 13 * 64);
1060  reg4 = __lsx_vld(tmp_buf, 19 * 64);
1061  reg5 = __lsx_vld(tmp_buf, 21 * 64);
1062  reg6 = __lsx_vld(tmp_buf, 27 * 64);
1063  reg7 = __lsx_vld(tmp_buf, 29 * 64);
1064 
1065  __lsx_vst(zero, tmp_buf, 3 * 64);
1066  __lsx_vst(zero, tmp_buf, 5 * 64);
1067  __lsx_vst(zero, tmp_buf, 11 * 64);
1068  __lsx_vst(zero, tmp_buf, 13 * 64);
1069  __lsx_vst(zero, tmp_buf, 19 * 64);
1070  __lsx_vst(zero, tmp_buf, 21 * 64);
1071  __lsx_vst(zero, tmp_buf, 27 * 64);
1072  __lsx_vst(zero, tmp_buf, 29 * 64);
1073 
1074  VP9_DOTP_CONST_PAIR(reg1, reg6, cospi_27_64, cospi_5_64, reg1, reg6);
1075  VP9_DOTP_CONST_PAIR(reg5, reg2, cospi_11_64, cospi_21_64, reg2, reg5);
1076  VP9_DOTP_CONST_PAIR(reg3, reg4, cospi_19_64, cospi_13_64, reg3, reg4);
1077  VP9_DOTP_CONST_PAIR(reg7, reg0, cospi_3_64, cospi_29_64, reg0, reg7);
1078 
1079  /* 4 Stores */
1080  DUP4_ARG2(__lsx_vsub_h,reg1, reg2, reg6, reg5, reg0, reg3, reg7, reg4,
1081  vec0, vec1, vec2, vec3);
1082  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_12_64, cospi_20_64, loc0, loc1);
1083  VP9_DOTP_CONST_PAIR(vec3, vec2, -cospi_20_64, cospi_12_64, loc2, loc3);
1084  LSX_BUTTERFLY_4_H(loc2, loc3, loc1, loc0, vec0, vec1, vec3, vec2);
1085  __lsx_vst(vec0, tmp_odd_buf, 12 * 16);
1086  __lsx_vst(vec1, tmp_odd_buf, 12 * 16 + 3 * 16);
1087  VP9_DOTP_CONST_PAIR(vec3, vec2, -cospi_8_64, cospi_24_64, vec0, vec1);
1088  __lsx_vst(vec0, tmp_odd_buf, 10 * 16);
1089  __lsx_vst(vec1, tmp_odd_buf, 10 * 16 + 16);
1090 
1091  /* 4 Stores */
1092  DUP4_ARG2(__lsx_vadd_h, reg0, reg3, reg1, reg2, reg5, reg6, reg4, reg7,
1093  vec0, vec1, vec2, vec3);
1094  LSX_BUTTERFLY_4_H(vec0, vec3, vec2, vec1, reg0, reg1, reg3, reg2);
1095  __lsx_vst(reg0, tmp_odd_buf, 13 * 16);
1096  __lsx_vst(reg1, tmp_odd_buf, 13 * 16 + 16);
1097  VP9_DOTP_CONST_PAIR(reg3, reg2, -cospi_8_64, cospi_24_64,
1098  reg0, reg1);
1099  __lsx_vst(reg0, tmp_odd_buf, 8 * 16);
1100  __lsx_vst(reg1, tmp_odd_buf, 8 * 16 + 16);
1101 
1102  /* Odd stage 3 : Dependency on Odd stage 1 & Odd stage 2 */
1103  /* Load 8 & Store 8 */
1104  DUP4_ARG2(__lsx_vld, tmp_odd_buf, 0, tmp_odd_buf, 16,
1105  tmp_odd_buf, 32, tmp_odd_buf, 48, reg0, reg1, reg2, reg3);
1106  DUP4_ARG2(__lsx_vld, tmp_odd_buf, 8 * 16, tmp_odd_buf, 8 * 16 + 16,
1107  tmp_odd_buf, 8 * 16 + 32, tmp_odd_buf, 8 * 16 + 48,
1108  reg4, reg5, reg6, reg7);
1109 
1110  DUP4_ARG2(__lsx_vadd_h, reg0, reg4, reg1, reg5, reg2, reg6, reg3, reg7,
1111  loc0, loc1, loc2, loc3);
1112  __lsx_vst(loc0, tmp_odd_buf, 0);
1113  __lsx_vst(loc1, tmp_odd_buf, 16);
1114  __lsx_vst(loc2, tmp_odd_buf, 32);
1115  __lsx_vst(loc3, tmp_odd_buf, 48);
1116  DUP2_ARG2(__lsx_vsub_h, reg0, reg4, reg1, reg5, vec0, vec1);
1117  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_16_64, cospi_16_64, loc0, loc1);
1118 
1119  DUP2_ARG2(__lsx_vsub_h, reg2, reg6, reg3, reg7, vec0, vec1);
1120  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_16_64, cospi_16_64, loc2, loc3);
1121  __lsx_vst(loc0, tmp_odd_buf, 8 * 16);
1122  __lsx_vst(loc1, tmp_odd_buf, 8 * 16 + 16);
1123  __lsx_vst(loc2, tmp_odd_buf, 8 * 16 + 32);
1124  __lsx_vst(loc3, tmp_odd_buf, 8 * 16 + 48);
1125 
1126  /* Load 8 & Store 8 */
1127  DUP4_ARG2(__lsx_vld, tmp_odd_buf, 4 * 16, tmp_odd_buf, 4 * 16 + 16,
1128  tmp_odd_buf, 4 * 16 + 32, tmp_odd_buf, 4 * 16 + 48,
1129  reg1, reg2, reg0, reg3);
1130  DUP4_ARG2(__lsx_vld, tmp_odd_buf, 12 * 16, tmp_odd_buf, 12 * 16 + 16,
1131  tmp_odd_buf, 12 * 16 + 32, tmp_odd_buf, 12 * 16 + 48,
1132  reg4, reg5, reg6, reg7);
1133 
1134  DUP4_ARG2(__lsx_vadd_h, reg0, reg4, reg1, reg5, reg2, reg6, reg3, reg7,
1135  loc0, loc1, loc2, loc3);
1136  __lsx_vst(loc0, tmp_odd_buf, 4 * 16);
1137  __lsx_vst(loc1, tmp_odd_buf, 4 * 16 + 16);
1138  __lsx_vst(loc2, tmp_odd_buf, 4 * 16 + 32);
1139  __lsx_vst(loc3, tmp_odd_buf, 4 * 16 + 48);
1140 
1141  DUP2_ARG2(__lsx_vsub_h, reg0, reg4, reg3, reg7, vec0, vec1);
1142  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_16_64, cospi_16_64, loc0, loc1);
1143 
1144  DUP2_ARG2(__lsx_vsub_h, reg1, reg5, reg2, reg6, vec0, vec1);
1145  VP9_DOTP_CONST_PAIR(vec1, vec0, cospi_16_64, cospi_16_64, loc2, loc3);
1146  __lsx_vst(loc0, tmp_odd_buf, 12 * 16);
1147  __lsx_vst(loc1, tmp_odd_buf, 12 * 16 + 16);
1148  __lsx_vst(loc2, tmp_odd_buf, 12 * 16 + 32);
1149  __lsx_vst(loc3, tmp_odd_buf, 12 * 16 + 48);
1150 }
1151 
1152 static void vp9_idct8x32_column_butterfly_addblk(int16_t *tmp_eve_buf,
1153  int16_t *tmp_odd_buf,
1154  uint8_t *dst,
1155  int32_t dst_stride)
1156 {
1157  __m128i vec0, vec1, vec2, vec3, loc0, loc1, loc2, loc3;
1158  __m128i m0, m1, m2, m3, m4, m5, m6, m7, n0, n1, n2, n3, n4, n5, n6, n7;
1159 
1160  /* FINAL BUTTERFLY : Dependency on Even & Odd */
1161  vec0 = __lsx_vld(tmp_odd_buf, 0);
1162  vec1 = __lsx_vld(tmp_odd_buf, 9 * 16);
1163  vec2 = __lsx_vld(tmp_odd_buf, 14 * 16);
1164  vec3 = __lsx_vld(tmp_odd_buf, 6 * 16);
1165  loc0 = __lsx_vld(tmp_eve_buf, 0);
1166  loc1 = __lsx_vld(tmp_eve_buf, 8 * 16);
1167  loc2 = __lsx_vld(tmp_eve_buf, 4 * 16);
1168  loc3 = __lsx_vld(tmp_eve_buf, 12 * 16);
1169 
1170  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1171  m0, m4, m2, m6);
1172  DUP4_ARG2(__lsx_vsrari_h, m0, 6, m2, 6, m4, 6, m6, 6, m0, m2, m4, m6);
1173  VP9_ADDBLK_ST8x4_UB(dst, (4 * dst_stride), m0, m2, m4, m6);
1174 
1175  DUP4_ARG2(__lsx_vsub_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1176  m6, m2, m4, m0);
1177  DUP4_ARG2(__lsx_vsrari_h, m0, 6, m2, 6, m4, 6, m6, 6, m0, m2, m4, m6);
1178  VP9_ADDBLK_ST8x4_UB((dst + 19 * dst_stride), (4 * dst_stride),
1179  m0, m2, m4, m6);
1180 
1181  /* Load 8 & Store 8 */
1182  vec0 = __lsx_vld(tmp_odd_buf, 4 * 16);
1183  vec1 = __lsx_vld(tmp_odd_buf, 13 * 16);
1184  vec2 = __lsx_vld(tmp_odd_buf, 10 * 16);
1185  vec3 = __lsx_vld(tmp_odd_buf, 3 * 16);
1186  loc0 = __lsx_vld(tmp_eve_buf, 2 * 16);
1187  loc1 = __lsx_vld(tmp_eve_buf, 10 * 16);
1188  loc2 = __lsx_vld(tmp_eve_buf, 6 * 16);
1189  loc3 = __lsx_vld(tmp_eve_buf, 14 * 16);
1190 
1191  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1192  m1, m5, m3, m7);
1193  DUP4_ARG2(__lsx_vsrari_h, m1, 6, m3, 6, m5, 6, m7, 6, m1, m3, m5, m7);
1194  VP9_ADDBLK_ST8x4_UB((dst + 2 * dst_stride), (4 * dst_stride),
1195  m1, m3, m5, m7);
1196 
1197  DUP4_ARG2(__lsx_vsub_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1198  m7, m3, m5, m1);
1199  DUP4_ARG2(__lsx_vsrari_h, m1, 6, m3, 6, m5, 6, m7, 6, m1, m3, m5, m7);
1200  VP9_ADDBLK_ST8x4_UB((dst + 17 * dst_stride), (4 * dst_stride),
1201  m1, m3, m5, m7);
1202 
1203  /* Load 8 & Store 8 */
1204  vec0 = __lsx_vld(tmp_odd_buf, 2 * 16);
1205  vec1 = __lsx_vld(tmp_odd_buf, 11 * 16);
1206  vec2 = __lsx_vld(tmp_odd_buf, 12 * 16);
1207  vec3 = __lsx_vld(tmp_odd_buf, 7 * 16);
1208  loc0 = __lsx_vld(tmp_eve_buf, 1 * 16);
1209  loc1 = __lsx_vld(tmp_eve_buf, 9 * 16);
1210  loc2 = __lsx_vld(tmp_eve_buf, 5 * 16);
1211  loc3 = __lsx_vld(tmp_eve_buf, 13 * 16);
1212 
1213  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1214  n0, n4, n2, n6);
1215  DUP4_ARG2(__lsx_vsrari_h, n0, 6, n2, 6, n4, 6, n6, 6, n0, n2, n4, n6);
1216  VP9_ADDBLK_ST8x4_UB((dst + 1 * dst_stride), (4 * dst_stride),
1217  n0, n2, n4, n6);
1218  DUP4_ARG2(__lsx_vsub_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1219  n6, n2, n4, n0);
1220  DUP4_ARG2(__lsx_vsrari_h, n0, 6, n2, 6, n4, 6, n6, 6, n0, n2, n4, n6);
1221  VP9_ADDBLK_ST8x4_UB((dst + 18 * dst_stride), (4 * dst_stride),
1222  n0, n2, n4, n6);
1223 
1224  /* Load 8 & Store 8 */
1225  vec0 = __lsx_vld(tmp_odd_buf, 5 * 16);
1226  vec1 = __lsx_vld(tmp_odd_buf, 15 * 16);
1227  vec2 = __lsx_vld(tmp_odd_buf, 8 * 16);
1228  vec3 = __lsx_vld(tmp_odd_buf, 1 * 16);
1229  loc0 = __lsx_vld(tmp_eve_buf, 3 * 16);
1230  loc1 = __lsx_vld(tmp_eve_buf, 11 * 16);
1231  loc2 = __lsx_vld(tmp_eve_buf, 7 * 16);
1232  loc3 = __lsx_vld(tmp_eve_buf, 15 * 16);
1233 
1234  DUP4_ARG2(__lsx_vadd_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1235  n1, n5, n3, n7);
1236  DUP4_ARG2(__lsx_vsrari_h, n1, 6, n3, 6, n5, 6, n7, 6, n1, n3, n5, n7);
1237  VP9_ADDBLK_ST8x4_UB((dst + 3 * dst_stride), (4 * dst_stride),
1238  n1, n3, n5, n7);
1239  DUP4_ARG2(__lsx_vsub_h, loc0, vec3, loc1, vec2, loc2, vec1, loc3, vec0,
1240  n7, n3, n5, n1);
1241  DUP4_ARG2(__lsx_vsrari_h, n1, 6, n3, 6, n5, 6, n7, 6, n1, n3, n5, n7);
1242  VP9_ADDBLK_ST8x4_UB((dst + 16 * dst_stride), (4 * dst_stride),
1243  n1, n3, n5, n7);
1244 }
1245 
1246 static void vp9_idct8x32_1d_columns_addblk_lsx(int16_t *input, uint8_t *dst,
1247  int32_t dst_stride)
1248 {
1249  int16_t tmp_odd_buf[16 * 8] ALLOC_ALIGNED(16);
1250  int16_t tmp_eve_buf[16 * 8] ALLOC_ALIGNED(16);
1251 
1252  vp9_idct8x32_column_even_process_store(input, &tmp_eve_buf[0]);
1253  vp9_idct8x32_column_odd_process_store(input, &tmp_odd_buf[0]);
1254  vp9_idct8x32_column_butterfly_addblk(&tmp_eve_buf[0], &tmp_odd_buf[0],
1255  dst, dst_stride);
1256 }
1257 
1258 static void vp9_idct8x32_1d_columns_lsx(int16_t *input, int16_t *output,
1259  int16_t *tmp_buf)
1260 {
1261  int16_t tmp_odd_buf[16 * 8] ALLOC_ALIGNED(16);
1262  int16_t tmp_eve_buf[16 * 8] ALLOC_ALIGNED(16);
1263 
1264  vp9_idct8x32_column_even_process_store(input, &tmp_eve_buf[0]);
1265  vp9_idct8x32_column_odd_process_store(input, &tmp_odd_buf[0]);
1266  vp9_idct_butterfly_transpose_store(tmp_buf, &tmp_eve_buf[0],
1267  &tmp_odd_buf[0], output);
1268 }
1269 
1270 static void vp9_idct32x32_1_add_lsx(int16_t *input, uint8_t *dst,
1271  int32_t dst_stride)
1272 {
1273  int32_t i;
1274  int16_t out;
1275  uint8_t *dst_tmp = dst + dst_stride;
1276  __m128i zero = __lsx_vldi(0);
1277  __m128i dst0, dst1, dst2, dst3, tmp0, tmp1, tmp2, tmp3;
1278  __m128i res0, res1, res2, res3, res4, res5, res6, res7, vec;
1279 
1280  out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), VP9_DCT_CONST_BITS);
1281  out = ROUND_POWER_OF_TWO((out * cospi_16_64), VP9_DCT_CONST_BITS);
1282  out = ROUND_POWER_OF_TWO(out, 6);
1283  input[0] = 0;
1284 
1285  vec = __lsx_vreplgr2vr_h(out);
1286 
1287  for (i = 16; i--;) {
1288  DUP2_ARG2(__lsx_vld, dst, 0, dst, 16, dst0, dst1);
1289  DUP2_ARG2(__lsx_vld, dst_tmp, 0, dst_tmp, 16, dst2, dst3);
1290 
1291  DUP4_ARG2(__lsx_vilvl_b, zero, dst0, zero, dst1, zero, dst2, zero, dst3,
1292  res0, res1, res2, res3);
1293  DUP4_ARG2(__lsx_vilvh_b, zero, dst0, zero, dst1, zero, dst2, zero, dst3,
1294  res4, res5, res6, res7);
1295  DUP4_ARG2(__lsx_vadd_h, res0, vec, res1, vec, res2, vec, res3, vec,
1296  res0, res1, res2, res3);
1297  DUP4_ARG2(__lsx_vadd_h, res4, vec, res5, vec, res6, vec, res7, vec,
1298  res4, res5, res6, res7);
1299  DUP4_ARG1(__lsx_vclip255_h, res0, res1, res2, res3, res0, res1, res2, res3);
1300  DUP4_ARG1(__lsx_vclip255_h, res4, res5, res6, res7, res4, res5, res6, res7);
1301  DUP4_ARG2(__lsx_vpickev_b, res4, res0, res5, res1, res6, res2, res7, res3,
1302  tmp0, tmp1, tmp2, tmp3);
1303 
1304  __lsx_vst(tmp0, dst, 0);
1305  __lsx_vst(tmp1, dst, 16);
1306  __lsx_vst(tmp2, dst_tmp, 0);
1307  __lsx_vst(tmp3, dst_tmp, 16);
1308  dst = dst_tmp + dst_stride;
1309  dst_tmp = dst + dst_stride;
1310  }
1311 }
1312 
1313 static void vp9_idct32x32_34_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
1314  int32_t dst_stride)
1315 {
1316  int32_t i;
1317  int16_t out_arr[32 * 32] ALLOC_ALIGNED(16);
1318  int16_t *out_ptr = out_arr;
1319  int16_t tmp_buf[8 * 32] ALLOC_ALIGNED(16);
1320  __m128i zero = __lsx_vldi(0);
1321 
1322  for (i = 16; i--;) {
1323  __lsx_vst(zero, out_ptr, 0);
1324  __lsx_vst(zero, out_ptr, 16);
1325  __lsx_vst(zero, out_ptr, 32);
1326  __lsx_vst(zero, out_ptr, 48);
1327  __lsx_vst(zero, out_ptr, 64);
1328  __lsx_vst(zero, out_ptr, 80);
1329  __lsx_vst(zero, out_ptr, 96);
1330  __lsx_vst(zero, out_ptr, 112);
1331  out_ptr += 64;
1332  }
1333 
1334  out_ptr = out_arr;
1335 
1336  /* process 8*32 block */
1337  vp9_idct8x32_1d_columns_lsx(input, out_ptr, &tmp_buf[0]);
1338 
1339  /* transform columns */
1340  for (i = 0; i < 4; i++) {
1341  /* process 8*32 block */
1342  vp9_idct8x32_1d_columns_addblk_lsx((out_ptr + (i << 3)),
1343  (dst + (i << 3)), dst_stride);
1344  }
1345 }
1346 
1347 static void vp9_idct32x32_colcol_addblk_lsx(int16_t *input, uint8_t *dst,
1348  int32_t dst_stride)
1349 {
1350  int32_t i;
1351  int16_t out_arr[32 * 32] ALLOC_ALIGNED(16);
1352  int16_t *out_ptr = out_arr;
1353  int16_t tmp_buf[8 * 32] ALLOC_ALIGNED(16);
1354 
1355  /* transform rows */
1356  for (i = 0; i < 4; i++) {
1357  /* process 8*32 block */
1358  vp9_idct8x32_1d_columns_lsx((input + (i << 3)), (out_ptr + (i << 8)),
1359  &tmp_buf[0]);
1360  }
1361 
1362  /* transform columns */
1363  for (i = 0; i < 4; i++) {
1364  /* process 8*32 block */
1365  vp9_idct8x32_1d_columns_addblk_lsx((out_ptr + (i << 3)),
1366  (dst + (i << 3)), dst_stride);
1367  }
1368 }
1369 
1370 void ff_idct_idct_8x8_add_lsx(uint8_t *dst, ptrdiff_t stride,
1371  int16_t *block, int eob)
1372 {
1373  if (eob == 1) {
1374  vp9_idct8x8_1_add_lsx(block, dst, stride);
1375  }
1376  else if (eob <= 12) {
1377  vp9_idct8x8_12_colcol_addblk_lsx(block, dst, stride);
1378  }
1379  else {
1380  vp9_idct8x8_colcol_addblk_lsx(block, dst, stride);
1381  }
1382 }
1383 
1384 void ff_idct_idct_16x16_add_lsx(uint8_t *dst, ptrdiff_t stride,
1385  int16_t *block, int eob)
1386 {
1387  if (eob == 1) {
1388  /* DC only DCT coefficient. */
1389  vp9_idct16x16_1_add_lsx(block, dst, stride);
1390  }
1391  else if (eob <= 10) {
1392  vp9_idct16x16_10_colcol_addblk_lsx(block, dst, stride);
1393  }
1394  else {
1395  vp9_idct16x16_colcol_addblk_lsx(block, dst, stride);
1396  }
1397 }
1398 
1399 void ff_idct_idct_32x32_add_lsx(uint8_t *dst, ptrdiff_t stride,
1400  int16_t *block, int eob)
1401 {
1402  if (eob == 1) {
1403  vp9_idct32x32_1_add_lsx(block, dst, stride);
1404  }
1405  else if (eob <= 34) {
1406  vp9_idct32x32_34_colcol_addblk_lsx(block, dst, stride);
1407  }
1408  else {
1409  vp9_idct32x32_colcol_addblk_lsx(block, dst, stride);
1410  }
1411 }
stride
int stride
Definition: mace.c:144
cospi_27_64
const int32_t cospi_27_64
Definition: vp9_idct_lsx.c:57
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#define s5
Definition: regdef.h:42
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Definition: vp9_idct_lsx.c:38
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Definition: vp9_idct_lsx.c:65
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Definition: movenc.c:54
vp9_idct32x32_34_colcol_addblk_lsx
static void vp9_idct32x32_34_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:1313
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static void vp9_idct16x16_1_add_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:637
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const int32_t cospi_5_64
Definition: vp9_idct_lsx.c:35
cospi_11_64
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Definition: vp9_idct_lsx.c:41
cospi_3_64
const int32_t cospi_3_64
Definition: vp9_idct_lsx.c:33
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filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce output
Definition: filter_design.txt:225
VP9_DOTP_CONST_PAIR
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Definition: vp9_idct_lsx.c:68
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#define VP9_SET_COSPI_PAIR(c0_h, c1_h)
Definition: vp9_idct_lsx.c:90
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Definition: vp9_idct_lsx.c:51
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Definition: vp9_idct_lsx.c:34
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Definition: vp9_idct_lsx.c:1258
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#define DUP2_ARG2(_INS, _IN0, _IN1, _IN2, _IN3, _OUT0, _OUT1)
Definition: loongson_intrinsics.h:58
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void ff_idct_idct_32x32_add_lsx(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_lsx.c:1399
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void ff_idct_idct_8x8_add_lsx(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_lsx.c:1370
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static void vp9_idct16_1d_columns_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:372
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const int32_t cospi_28_64
Definition: vp9_idct_lsx.c:58
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Definition: vp9_idct_lsx.c:61
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#define VP9_ILVLTRANS4x8_H(in0, in1, in2, in3, in4, in5, in6, in7, out0, out1, out2, out3, out4, out5, out6, out7)
Definition: vp9_idct_lsx.c:132
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const int32_t cospi_26_64
Definition: vp9_idct_lsx.c:56
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Definition: vp9_idct_lsx.c:59
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#define s3
Definition: regdef.h:40
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static void vp9_idct32x32_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:1347
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#define VP9_DCT_CONST_BITS
Definition: vp9_idct_lsx.c:27
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Definition: aeval.c:76
VP9_IDCT8x8_1D
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Definition: vp9_idct_lsx.c:194
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#define VP9_UNPCK_UB_SH(in, out_h, out_l)
Definition: vp9_idct_lsx.c:125
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Definition: loongson_intrinsics.h:76
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static void vp9_idct8x32_1d_columns_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:1246
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const int32_t cospi_12_64
Definition: vp9_idct_lsx.c:42
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Definition: regdef.h:38
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const int32_t sinpi_2_9
Definition: vp9_idct_lsx.c:64
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Definition: vp9_idct_lsx.c:31
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static void vp9_idct8x8_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:333
s6
#define s6
Definition: regdef.h:43
SUB
#define SUB(a, b)
cospi_30_64
const int32_t cospi_30_64
Definition: vp9_idct_lsx.c:60
vp9_idct16x16_colcol_addblk_lsx
static void vp9_idct16x16_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:715
VP9_ADDBLK_ST8x4_UB
#define VP9_ADDBLK_ST8x4_UB(dst, dst_stride, in0, in1, in2, in3)
Definition: vp9_idct_lsx.c:101
cospi_6_64
const int32_t cospi_6_64
Definition: vp9_idct_lsx.c:36
ALLOC_ALIGNED
#define ALLOC_ALIGNED(align)
Definition: vp9_idct_lsx.c:28
vp9dsp.h
cospi_16_64
const int32_t cospi_16_64
Definition: vp9_idct_lsx.c:46
cospi_22_64
const int32_t cospi_22_64
Definition: vp9_idct_lsx.c:52
DUP4_ARG1
#define DUP4_ARG1(_INS, _IN0, _IN1, _IN2, _IN3, _OUT0, _OUT1, _OUT2, _OUT3)
Definition: loongson_intrinsics.h:70
s2
#define s2
Definition: regdef.h:39
cospi_17_64
const int32_t cospi_17_64
Definition: vp9_idct_lsx.c:47
cospi_13_64
const int32_t cospi_13_64
Definition: vp9_idct_lsx.c:43
cospi_20_64
const int32_t cospi_20_64
Definition: vp9_idct_lsx.c:50
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
attributes.h
vp9_idct16_1d_columns_lsx
static void vp9_idct16_1d_columns_lsx(int16_t *input, int16_t *output)
Definition: vp9_idct_lsx.c:498
input
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some input
Definition: filter_design.txt:172
cospi_25_64
const int32_t cospi_25_64
Definition: vp9_idct_lsx.c:55
cospi_23_64
const int32_t cospi_23_64
Definition: vp9_idct_lsx.c:53
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
cospi_2_64
const int32_t cospi_2_64
Definition: vp9_idct_lsx.c:32
ROUND_POWER_OF_TWO
#define ROUND_POWER_OF_TWO(value, n)
Definition: vp9_idct_lsx.c:29
vp9dsp_loongarch.h
av_always_inline
#define av_always_inline
Definition: attributes.h:49
s4
#define s4
Definition: regdef.h:41
vp9_idct8x32_column_even_process_store
static void vp9_idct8x32_column_even_process_store(int16_t *tmp_buf, int16_t *tmp_eve_buf)
Definition: vp9_idct_lsx.c:879
cospi_18_64
const int32_t cospi_18_64
Definition: vp9_idct_lsx.c:48
vp9_idct32x32_1_add_lsx
static void vp9_idct32x32_1_add_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:1270
cospi_24_64
const int32_t cospi_24_64
Definition: vp9_idct_lsx.c:54
cospi_7_64
const int32_t cospi_7_64
Definition: vp9_idct_lsx.c:37
vp9_idct8x32_column_butterfly_addblk
static void vp9_idct8x32_column_butterfly_addblk(int16_t *tmp_eve_buf, int16_t *tmp_odd_buf, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:1152
cospi_9_64
const int32_t cospi_9_64
Definition: vp9_idct_lsx.c:39
sinpi_1_9
const int32_t sinpi_1_9
Definition: vp9_idct_lsx.c:63
cospi_15_64
const int32_t cospi_15_64
Definition: vp9_idct_lsx.c:45
zero
#define zero
Definition: regdef.h:64
loongson_intrinsics.h
s0
#define s0
Definition: regdef.h:37
vp9_idct8x8_1_add_lsx
static av_always_inline void vp9_idct8x8_1_add_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:232
ff_idct_idct_16x16_add_lsx
void ff_idct_idct_16x16_add_lsx(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_lsx.c:1384
cospi_14_64
const int32_t cospi_14_64
Definition: vp9_idct_lsx.c:44
int32_t
int32_t
Definition: audioconvert.c:56
cospi_10_64
const int32_t cospi_10_64
Definition: vp9_idct_lsx.c:40
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
sinpi_4_9
const int32_t sinpi_4_9
Definition: vp9_idct_lsx.c:66
vp9_idct8x8_12_colcol_addblk_lsx
static void vp9_idct8x8_12_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:250
vp9_idct8x32_column_odd_process_store
static void vp9_idct8x32_column_odd_process_store(int16_t *tmp_buf, int16_t *tmp_odd_buf)
Definition: vp9_idct_lsx.c:994
vp9_idct16x16_10_colcol_addblk_lsx
static void vp9_idct16x16_10_colcol_addblk_lsx(int16_t *input, uint8_t *dst, int32_t dst_stride)
Definition: vp9_idct_lsx.c:680
vp9_idct_butterfly_transpose_store
static void vp9_idct_butterfly_transpose_store(int16_t *tmp_buf, int16_t *tmp_eve_buf, int16_t *tmp_odd_buf, int16_t *dst)
Definition: vp9_idct_lsx.c:736
cospi_19_64
const int32_t cospi_19_64
Definition: vp9_idct_lsx.c:49
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