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1 | /* |
2 | * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "libavutil/arm/asm.S" | |
22 | #include "neon.S" | |
23 | ||
24 | /* H.264 loop filter */ | |
25 | ||
26 | .macro h264_loop_filter_start | |
27 | ldr r12, [sp] | |
28 | tst r2, r2 | |
29 | ldr r12, [r12] | |
30 | it ne | |
31 | tstne r3, r3 | |
32 | vmov.32 d24[0], r12 | |
33 | and r12, r12, r12, lsl #16 | |
34 | it eq | |
35 | bxeq lr | |
36 | ands r12, r12, r12, lsl #8 | |
37 | it lt | |
38 | bxlt lr | |
39 | .endm | |
40 | ||
41 | .macro h264_loop_filter_luma | |
42 | vdup.8 q11, r2 @ alpha | |
43 | vmovl.u8 q12, d24 | |
44 | vabd.u8 q6, q8, q0 @ abs(p0 - q0) | |
45 | vmovl.u16 q12, d24 | |
46 | vabd.u8 q14, q9, q8 @ abs(p1 - p0) | |
47 | vsli.16 q12, q12, #8 | |
48 | vabd.u8 q15, q1, q0 @ abs(q1 - q0) | |
49 | vsli.32 q12, q12, #16 | |
50 | vclt.u8 q6, q6, q11 @ < alpha | |
51 | vdup.8 q11, r3 @ beta | |
52 | vclt.s8 q7, q12, #0 | |
53 | vclt.u8 q14, q14, q11 @ < beta | |
54 | vclt.u8 q15, q15, q11 @ < beta | |
55 | vbic q6, q6, q7 | |
56 | vabd.u8 q4, q10, q8 @ abs(p2 - p0) | |
57 | vand q6, q6, q14 | |
58 | vabd.u8 q5, q2, q0 @ abs(q2 - q0) | |
59 | vclt.u8 q4, q4, q11 @ < beta | |
60 | vand q6, q6, q15 | |
61 | vclt.u8 q5, q5, q11 @ < beta | |
62 | vand q4, q4, q6 | |
63 | vand q5, q5, q6 | |
64 | vand q12, q12, q6 | |
65 | vrhadd.u8 q14, q8, q0 | |
66 | vsub.i8 q6, q12, q4 | |
67 | vqadd.u8 q7, q9, q12 | |
68 | vhadd.u8 q10, q10, q14 | |
69 | vsub.i8 q6, q6, q5 | |
70 | vhadd.u8 q14, q2, q14 | |
71 | vmin.u8 q7, q7, q10 | |
72 | vqsub.u8 q11, q9, q12 | |
73 | vqadd.u8 q2, q1, q12 | |
74 | vmax.u8 q7, q7, q11 | |
75 | vqsub.u8 q11, q1, q12 | |
76 | vmin.u8 q14, q2, q14 | |
77 | vmovl.u8 q2, d0 | |
78 | vmax.u8 q14, q14, q11 | |
79 | vmovl.u8 q10, d1 | |
80 | vsubw.u8 q2, q2, d16 | |
81 | vsubw.u8 q10, q10, d17 | |
82 | vshl.i16 q2, q2, #2 | |
83 | vshl.i16 q10, q10, #2 | |
84 | vaddw.u8 q2, q2, d18 | |
85 | vaddw.u8 q10, q10, d19 | |
86 | vsubw.u8 q2, q2, d2 | |
87 | vsubw.u8 q10, q10, d3 | |
88 | vrshrn.i16 d4, q2, #3 | |
89 | vrshrn.i16 d5, q10, #3 | |
90 | vbsl q4, q7, q9 | |
91 | vbsl q5, q14, q1 | |
92 | vneg.s8 q7, q6 | |
93 | vmovl.u8 q14, d16 | |
94 | vmin.s8 q2, q2, q6 | |
95 | vmovl.u8 q6, d17 | |
96 | vmax.s8 q2, q2, q7 | |
97 | vmovl.u8 q11, d0 | |
98 | vmovl.u8 q12, d1 | |
99 | vaddw.s8 q14, q14, d4 | |
100 | vaddw.s8 q6, q6, d5 | |
101 | vsubw.s8 q11, q11, d4 | |
102 | vsubw.s8 q12, q12, d5 | |
103 | vqmovun.s16 d16, q14 | |
104 | vqmovun.s16 d17, q6 | |
105 | vqmovun.s16 d0, q11 | |
106 | vqmovun.s16 d1, q12 | |
107 | .endm | |
108 | ||
109 | function ff_h264_v_loop_filter_luma_neon, export=1 | |
110 | h264_loop_filter_start | |
111 | ||
112 | vld1.8 {d0, d1}, [r0,:128], r1 | |
113 | vld1.8 {d2, d3}, [r0,:128], r1 | |
114 | vld1.8 {d4, d5}, [r0,:128], r1 | |
115 | sub r0, r0, r1, lsl #2 | |
116 | sub r0, r0, r1, lsl #1 | |
117 | vld1.8 {d20,d21}, [r0,:128], r1 | |
118 | vld1.8 {d18,d19}, [r0,:128], r1 | |
119 | vld1.8 {d16,d17}, [r0,:128], r1 | |
120 | ||
121 | vpush {d8-d15} | |
122 | ||
123 | h264_loop_filter_luma | |
124 | ||
125 | sub r0, r0, r1, lsl #1 | |
126 | vst1.8 {d8, d9}, [r0,:128], r1 | |
127 | vst1.8 {d16,d17}, [r0,:128], r1 | |
128 | vst1.8 {d0, d1}, [r0,:128], r1 | |
129 | vst1.8 {d10,d11}, [r0,:128] | |
130 | ||
131 | vpop {d8-d15} | |
132 | bx lr | |
133 | endfunc | |
134 | ||
135 | function ff_h264_h_loop_filter_luma_neon, export=1 | |
136 | h264_loop_filter_start | |
137 | ||
138 | sub r0, r0, #4 | |
139 | vld1.8 {d6}, [r0], r1 | |
140 | vld1.8 {d20}, [r0], r1 | |
141 | vld1.8 {d18}, [r0], r1 | |
142 | vld1.8 {d16}, [r0], r1 | |
143 | vld1.8 {d0}, [r0], r1 | |
144 | vld1.8 {d2}, [r0], r1 | |
145 | vld1.8 {d4}, [r0], r1 | |
146 | vld1.8 {d26}, [r0], r1 | |
147 | vld1.8 {d7}, [r0], r1 | |
148 | vld1.8 {d21}, [r0], r1 | |
149 | vld1.8 {d19}, [r0], r1 | |
150 | vld1.8 {d17}, [r0], r1 | |
151 | vld1.8 {d1}, [r0], r1 | |
152 | vld1.8 {d3}, [r0], r1 | |
153 | vld1.8 {d5}, [r0], r1 | |
154 | vld1.8 {d27}, [r0], r1 | |
155 | ||
156 | transpose_8x8 q3, q10, q9, q8, q0, q1, q2, q13 | |
157 | ||
158 | vpush {d8-d15} | |
159 | ||
160 | h264_loop_filter_luma | |
161 | ||
162 | transpose_4x4 q4, q8, q0, q5 | |
163 | ||
164 | sub r0, r0, r1, lsl #4 | |
165 | add r0, r0, #2 | |
166 | vst1.32 {d8[0]}, [r0], r1 | |
167 | vst1.32 {d16[0]}, [r0], r1 | |
168 | vst1.32 {d0[0]}, [r0], r1 | |
169 | vst1.32 {d10[0]}, [r0], r1 | |
170 | vst1.32 {d8[1]}, [r0], r1 | |
171 | vst1.32 {d16[1]}, [r0], r1 | |
172 | vst1.32 {d0[1]}, [r0], r1 | |
173 | vst1.32 {d10[1]}, [r0], r1 | |
174 | vst1.32 {d9[0]}, [r0], r1 | |
175 | vst1.32 {d17[0]}, [r0], r1 | |
176 | vst1.32 {d1[0]}, [r0], r1 | |
177 | vst1.32 {d11[0]}, [r0], r1 | |
178 | vst1.32 {d9[1]}, [r0], r1 | |
179 | vst1.32 {d17[1]}, [r0], r1 | |
180 | vst1.32 {d1[1]}, [r0], r1 | |
181 | vst1.32 {d11[1]}, [r0], r1 | |
182 | ||
183 | vpop {d8-d15} | |
184 | bx lr | |
185 | endfunc | |
186 | ||
187 | .macro h264_loop_filter_chroma | |
188 | vdup.8 d22, r2 @ alpha | |
189 | vmovl.u8 q12, d24 | |
190 | vabd.u8 d26, d16, d0 @ abs(p0 - q0) | |
191 | vmovl.u8 q2, d0 | |
192 | vabd.u8 d28, d18, d16 @ abs(p1 - p0) | |
193 | vsubw.u8 q2, q2, d16 | |
194 | vsli.16 d24, d24, #8 | |
195 | vshl.i16 q2, q2, #2 | |
196 | vabd.u8 d30, d2, d0 @ abs(q1 - q0) | |
197 | vaddw.u8 q2, q2, d18 | |
198 | vclt.u8 d26, d26, d22 @ < alpha | |
199 | vsubw.u8 q2, q2, d2 | |
200 | vdup.8 d22, r3 @ beta | |
201 | vrshrn.i16 d4, q2, #3 | |
202 | vclt.u8 d28, d28, d22 @ < beta | |
203 | vclt.u8 d30, d30, d22 @ < beta | |
204 | vmin.s8 d4, d4, d24 | |
205 | vneg.s8 d25, d24 | |
206 | vand d26, d26, d28 | |
207 | vmax.s8 d4, d4, d25 | |
208 | vand d26, d26, d30 | |
209 | vmovl.u8 q11, d0 | |
210 | vand d4, d4, d26 | |
211 | vmovl.u8 q14, d16 | |
212 | vaddw.s8 q14, q14, d4 | |
213 | vsubw.s8 q11, q11, d4 | |
214 | vqmovun.s16 d16, q14 | |
215 | vqmovun.s16 d0, q11 | |
216 | .endm | |
217 | ||
218 | function ff_h264_v_loop_filter_chroma_neon, export=1 | |
219 | h264_loop_filter_start | |
220 | ||
221 | sub r0, r0, r1, lsl #1 | |
222 | vld1.8 {d18}, [r0,:64], r1 | |
223 | vld1.8 {d16}, [r0,:64], r1 | |
224 | vld1.8 {d0}, [r0,:64], r1 | |
225 | vld1.8 {d2}, [r0,:64] | |
226 | ||
227 | h264_loop_filter_chroma | |
228 | ||
229 | sub r0, r0, r1, lsl #1 | |
230 | vst1.8 {d16}, [r0,:64], r1 | |
231 | vst1.8 {d0}, [r0,:64], r1 | |
232 | ||
233 | bx lr | |
234 | endfunc | |
235 | ||
236 | function ff_h264_h_loop_filter_chroma_neon, export=1 | |
237 | h264_loop_filter_start | |
238 | ||
239 | sub r0, r0, #2 | |
240 | vld1.32 {d18[0]}, [r0], r1 | |
241 | vld1.32 {d16[0]}, [r0], r1 | |
242 | vld1.32 {d0[0]}, [r0], r1 | |
243 | vld1.32 {d2[0]}, [r0], r1 | |
244 | vld1.32 {d18[1]}, [r0], r1 | |
245 | vld1.32 {d16[1]}, [r0], r1 | |
246 | vld1.32 {d0[1]}, [r0], r1 | |
247 | vld1.32 {d2[1]}, [r0], r1 | |
248 | ||
249 | vtrn.16 d18, d0 | |
250 | vtrn.16 d16, d2 | |
251 | vtrn.8 d18, d16 | |
252 | vtrn.8 d0, d2 | |
253 | ||
254 | h264_loop_filter_chroma | |
255 | ||
256 | vtrn.16 d18, d0 | |
257 | vtrn.16 d16, d2 | |
258 | vtrn.8 d18, d16 | |
259 | vtrn.8 d0, d2 | |
260 | ||
261 | sub r0, r0, r1, lsl #3 | |
262 | vst1.32 {d18[0]}, [r0], r1 | |
263 | vst1.32 {d16[0]}, [r0], r1 | |
264 | vst1.32 {d0[0]}, [r0], r1 | |
265 | vst1.32 {d2[0]}, [r0], r1 | |
266 | vst1.32 {d18[1]}, [r0], r1 | |
267 | vst1.32 {d16[1]}, [r0], r1 | |
268 | vst1.32 {d0[1]}, [r0], r1 | |
269 | vst1.32 {d2[1]}, [r0], r1 | |
270 | ||
271 | bx lr | |
272 | endfunc | |
273 | ||
274 | @ Biweighted prediction | |
275 | ||
276 | .macro biweight_16 macs, macd | |
277 | vdup.8 d0, r4 | |
278 | vdup.8 d1, r5 | |
279 | vmov q2, q8 | |
280 | vmov q3, q8 | |
281 | 1: subs r3, r3, #2 | |
282 | vld1.8 {d20-d21},[r0,:128], r2 | |
283 | \macd q2, d0, d20 | |
284 | pld [r0] | |
285 | \macd q3, d0, d21 | |
286 | vld1.8 {d22-d23},[r1,:128], r2 | |
287 | \macs q2, d1, d22 | |
288 | pld [r1] | |
289 | \macs q3, d1, d23 | |
290 | vmov q12, q8 | |
291 | vld1.8 {d28-d29},[r0,:128], r2 | |
292 | vmov q13, q8 | |
293 | \macd q12, d0, d28 | |
294 | pld [r0] | |
295 | \macd q13, d0, d29 | |
296 | vld1.8 {d30-d31},[r1,:128], r2 | |
297 | \macs q12, d1, d30 | |
298 | pld [r1] | |
299 | \macs q13, d1, d31 | |
300 | vshl.s16 q2, q2, q9 | |
301 | vshl.s16 q3, q3, q9 | |
302 | vqmovun.s16 d4, q2 | |
303 | vqmovun.s16 d5, q3 | |
304 | vshl.s16 q12, q12, q9 | |
305 | vshl.s16 q13, q13, q9 | |
306 | vqmovun.s16 d24, q12 | |
307 | vqmovun.s16 d25, q13 | |
308 | vmov q3, q8 | |
309 | vst1.8 {d4- d5}, [r6,:128], r2 | |
310 | vmov q2, q8 | |
311 | vst1.8 {d24-d25},[r6,:128], r2 | |
312 | bne 1b | |
313 | pop {r4-r6, pc} | |
314 | .endm | |
315 | ||
316 | .macro biweight_8 macs, macd | |
317 | vdup.8 d0, r4 | |
318 | vdup.8 d1, r5 | |
319 | vmov q1, q8 | |
320 | vmov q10, q8 | |
321 | 1: subs r3, r3, #2 | |
322 | vld1.8 {d4},[r0,:64], r2 | |
323 | \macd q1, d0, d4 | |
324 | pld [r0] | |
325 | vld1.8 {d5},[r1,:64], r2 | |
326 | \macs q1, d1, d5 | |
327 | pld [r1] | |
328 | vld1.8 {d6},[r0,:64], r2 | |
329 | \macd q10, d0, d6 | |
330 | pld [r0] | |
331 | vld1.8 {d7},[r1,:64], r2 | |
332 | \macs q10, d1, d7 | |
333 | pld [r1] | |
334 | vshl.s16 q1, q1, q9 | |
335 | vqmovun.s16 d2, q1 | |
336 | vshl.s16 q10, q10, q9 | |
337 | vqmovun.s16 d4, q10 | |
338 | vmov q10, q8 | |
339 | vst1.8 {d2},[r6,:64], r2 | |
340 | vmov q1, q8 | |
341 | vst1.8 {d4},[r6,:64], r2 | |
342 | bne 1b | |
343 | pop {r4-r6, pc} | |
344 | .endm | |
345 | ||
346 | .macro biweight_4 macs, macd | |
347 | vdup.8 d0, r4 | |
348 | vdup.8 d1, r5 | |
349 | vmov q1, q8 | |
350 | vmov q10, q8 | |
351 | 1: subs r3, r3, #4 | |
352 | vld1.32 {d4[0]},[r0,:32], r2 | |
353 | vld1.32 {d4[1]},[r0,:32], r2 | |
354 | \macd q1, d0, d4 | |
355 | pld [r0] | |
356 | vld1.32 {d5[0]},[r1,:32], r2 | |
357 | vld1.32 {d5[1]},[r1,:32], r2 | |
358 | \macs q1, d1, d5 | |
359 | pld [r1] | |
360 | blt 2f | |
361 | vld1.32 {d6[0]},[r0,:32], r2 | |
362 | vld1.32 {d6[1]},[r0,:32], r2 | |
363 | \macd q10, d0, d6 | |
364 | pld [r0] | |
365 | vld1.32 {d7[0]},[r1,:32], r2 | |
366 | vld1.32 {d7[1]},[r1,:32], r2 | |
367 | \macs q10, d1, d7 | |
368 | pld [r1] | |
369 | vshl.s16 q1, q1, q9 | |
370 | vqmovun.s16 d2, q1 | |
371 | vshl.s16 q10, q10, q9 | |
372 | vqmovun.s16 d4, q10 | |
373 | vmov q10, q8 | |
374 | vst1.32 {d2[0]},[r6,:32], r2 | |
375 | vst1.32 {d2[1]},[r6,:32], r2 | |
376 | vmov q1, q8 | |
377 | vst1.32 {d4[0]},[r6,:32], r2 | |
378 | vst1.32 {d4[1]},[r6,:32], r2 | |
379 | bne 1b | |
380 | pop {r4-r6, pc} | |
381 | 2: vshl.s16 q1, q1, q9 | |
382 | vqmovun.s16 d2, q1 | |
383 | vst1.32 {d2[0]},[r6,:32], r2 | |
384 | vst1.32 {d2[1]},[r6,:32], r2 | |
385 | pop {r4-r6, pc} | |
386 | .endm | |
387 | ||
388 | .macro biweight_func w | |
389 | function ff_biweight_h264_pixels_\w\()_neon, export=1 | |
390 | push {r4-r6, lr} | |
391 | ldr r12, [sp, #16] | |
392 | add r4, sp, #20 | |
393 | ldm r4, {r4-r6} | |
394 | lsr lr, r4, #31 | |
395 | add r6, r6, #1 | |
396 | eors lr, lr, r5, lsr #30 | |
397 | orr r6, r6, #1 | |
398 | vdup.16 q9, r12 | |
399 | lsl r6, r6, r12 | |
400 | vmvn q9, q9 | |
401 | vdup.16 q8, r6 | |
402 | mov r6, r0 | |
403 | beq 10f | |
404 | subs lr, lr, #1 | |
405 | beq 20f | |
406 | subs lr, lr, #1 | |
407 | beq 30f | |
408 | b 40f | |
409 | 10: biweight_\w vmlal.u8, vmlal.u8 | |
410 | 20: rsb r4, r4, #0 | |
411 | biweight_\w vmlal.u8, vmlsl.u8 | |
412 | 30: rsb r4, r4, #0 | |
413 | rsb r5, r5, #0 | |
414 | biweight_\w vmlsl.u8, vmlsl.u8 | |
415 | 40: rsb r5, r5, #0 | |
416 | biweight_\w vmlsl.u8, vmlal.u8 | |
417 | endfunc | |
418 | .endm | |
419 | ||
420 | biweight_func 16 | |
421 | biweight_func 8 | |
422 | biweight_func 4 | |
423 | ||
424 | @ Weighted prediction | |
425 | ||
426 | .macro weight_16 add | |
427 | vdup.8 d0, r12 | |
428 | 1: subs r2, r2, #2 | |
429 | vld1.8 {d20-d21},[r0,:128], r1 | |
430 | vmull.u8 q2, d0, d20 | |
431 | pld [r0] | |
432 | vmull.u8 q3, d0, d21 | |
433 | vld1.8 {d28-d29},[r0,:128], r1 | |
434 | vmull.u8 q12, d0, d28 | |
435 | pld [r0] | |
436 | vmull.u8 q13, d0, d29 | |
437 | \add q2, q8, q2 | |
438 | vrshl.s16 q2, q2, q9 | |
439 | \add q3, q8, q3 | |
440 | vrshl.s16 q3, q3, q9 | |
441 | vqmovun.s16 d4, q2 | |
442 | vqmovun.s16 d5, q3 | |
443 | \add q12, q8, q12 | |
444 | vrshl.s16 q12, q12, q9 | |
445 | \add q13, q8, q13 | |
446 | vrshl.s16 q13, q13, q9 | |
447 | vqmovun.s16 d24, q12 | |
448 | vqmovun.s16 d25, q13 | |
449 | vst1.8 {d4- d5}, [r4,:128], r1 | |
450 | vst1.8 {d24-d25},[r4,:128], r1 | |
451 | bne 1b | |
452 | pop {r4, pc} | |
453 | .endm | |
454 | ||
455 | .macro weight_8 add | |
456 | vdup.8 d0, r12 | |
457 | 1: subs r2, r2, #2 | |
458 | vld1.8 {d4},[r0,:64], r1 | |
459 | vmull.u8 q1, d0, d4 | |
460 | pld [r0] | |
461 | vld1.8 {d6},[r0,:64], r1 | |
462 | vmull.u8 q10, d0, d6 | |
463 | \add q1, q8, q1 | |
464 | pld [r0] | |
465 | vrshl.s16 q1, q1, q9 | |
466 | vqmovun.s16 d2, q1 | |
467 | \add q10, q8, q10 | |
468 | vrshl.s16 q10, q10, q9 | |
469 | vqmovun.s16 d4, q10 | |
470 | vst1.8 {d2},[r4,:64], r1 | |
471 | vst1.8 {d4},[r4,:64], r1 | |
472 | bne 1b | |
473 | pop {r4, pc} | |
474 | .endm | |
475 | ||
476 | .macro weight_4 add | |
477 | vdup.8 d0, r12 | |
478 | vmov q1, q8 | |
479 | vmov q10, q8 | |
480 | 1: subs r2, r2, #4 | |
481 | vld1.32 {d4[0]},[r0,:32], r1 | |
482 | vld1.32 {d4[1]},[r0,:32], r1 | |
483 | vmull.u8 q1, d0, d4 | |
484 | pld [r0] | |
485 | blt 2f | |
486 | vld1.32 {d6[0]},[r0,:32], r1 | |
487 | vld1.32 {d6[1]},[r0,:32], r1 | |
488 | vmull.u8 q10, d0, d6 | |
489 | pld [r0] | |
490 | \add q1, q8, q1 | |
491 | vrshl.s16 q1, q1, q9 | |
492 | vqmovun.s16 d2, q1 | |
493 | \add q10, q8, q10 | |
494 | vrshl.s16 q10, q10, q9 | |
495 | vqmovun.s16 d4, q10 | |
496 | vmov q10, q8 | |
497 | vst1.32 {d2[0]},[r4,:32], r1 | |
498 | vst1.32 {d2[1]},[r4,:32], r1 | |
499 | vmov q1, q8 | |
500 | vst1.32 {d4[0]},[r4,:32], r1 | |
501 | vst1.32 {d4[1]},[r4,:32], r1 | |
502 | bne 1b | |
503 | pop {r4, pc} | |
504 | 2: \add q1, q8, q1 | |
505 | vrshl.s16 q1, q1, q9 | |
506 | vqmovun.s16 d2, q1 | |
507 | vst1.32 {d2[0]},[r4,:32], r1 | |
508 | vst1.32 {d2[1]},[r4,:32], r1 | |
509 | pop {r4, pc} | |
510 | .endm | |
511 | ||
512 | .macro weight_func w | |
513 | function ff_weight_h264_pixels_\w\()_neon, export=1 | |
514 | push {r4, lr} | |
515 | ldr r12, [sp, #8] | |
516 | ldr r4, [sp, #12] | |
517 | cmp r3, #1 | |
518 | lsl r4, r4, r3 | |
519 | vdup.16 q8, r4 | |
520 | mov r4, r0 | |
521 | ble 20f | |
522 | rsb lr, r3, #1 | |
523 | vdup.16 q9, lr | |
524 | cmp r12, #0 | |
525 | blt 10f | |
526 | weight_\w vhadd.s16 | |
527 | 10: rsb r12, r12, #0 | |
528 | weight_\w vhsub.s16 | |
529 | 20: rsb lr, r3, #0 | |
530 | vdup.16 q9, lr | |
531 | cmp r12, #0 | |
532 | blt 10f | |
533 | weight_\w vadd.s16 | |
534 | 10: rsb r12, r12, #0 | |
535 | weight_\w vsub.s16 | |
536 | endfunc | |
537 | .endm | |
538 | ||
539 | weight_func 16 | |
540 | weight_func 8 | |
541 | weight_func 4 |