e43f7e9de81d38a09417587314bf99f38723c8d3
[libav.git] / libavcodec / i386 / snowdsp_mmx.c
1 /*
2 * MMX and SSE2 optimized snow DSP utils
3 * Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>
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 "avcodec.h"
23 #include "snow.h"
24 #include "x86_cpu.h"
25
26 void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){
27 const int w2= (width+1)>>1;
28 DECLARE_ALIGNED_16(IDWTELEM, temp[width>>1]);
29 const int w_l= (width>>1);
30 const int w_r= w2 - 1;
31 int i;
32
33 { // Lift 0
34 IDWTELEM * const ref = b + w2 - 1;
35 IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice
36 // (the first time erroneously), we allow the SSE2 code to run an extra pass.
37 // The savings in code and time are well worth having to store this value and
38 // calculate b[0] correctly afterwards.
39
40 i = 0;
41 asm volatile(
42 "pcmpeqd %%xmm7, %%xmm7 \n\t"
43 "pcmpeqd %%xmm3, %%xmm3 \n\t"
44 "psllw $1, %%xmm3 \n\t"
45 "paddw %%xmm7, %%xmm3 \n\t"
46 "psllw $13, %%xmm3 \n\t"
47 ::);
48 for(; i<w_l-15; i+=16){
49 asm volatile(
50 "movdqu (%1), %%xmm1 \n\t"
51 "movdqu 16(%1), %%xmm5 \n\t"
52 "movdqu 2(%1), %%xmm2 \n\t"
53 "movdqu 18(%1), %%xmm6 \n\t"
54 "paddw %%xmm1, %%xmm2 \n\t"
55 "paddw %%xmm5, %%xmm6 \n\t"
56 "paddw %%xmm7, %%xmm2 \n\t"
57 "paddw %%xmm7, %%xmm6 \n\t"
58 "pmulhw %%xmm3, %%xmm2 \n\t"
59 "pmulhw %%xmm3, %%xmm6 \n\t"
60 "paddw (%0), %%xmm2 \n\t"
61 "paddw 16(%0), %%xmm6 \n\t"
62 "movdqa %%xmm2, (%0) \n\t"
63 "movdqa %%xmm6, 16(%0) \n\t"
64 :: "r"(&b[i]), "r"(&ref[i])
65 : "memory"
66 );
67 }
68 snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
69 b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
70 }
71
72 { // Lift 1
73 IDWTELEM * const dst = b+w2;
74
75 i = 0;
76 for(; (((long)&dst[i]) & 0x1F) && i<w_r; i++){
77 dst[i] = dst[i] - (b[i] + b[i + 1]);
78 }
79 for(; i<w_r-15; i+=16){
80 asm volatile(
81 "movdqu (%1), %%xmm1 \n\t"
82 "movdqu 16(%1), %%xmm5 \n\t"
83 "movdqu 2(%1), %%xmm2 \n\t"
84 "movdqu 18(%1), %%xmm6 \n\t"
85 "paddw %%xmm1, %%xmm2 \n\t"
86 "paddw %%xmm5, %%xmm6 \n\t"
87 "movdqa (%0), %%xmm0 \n\t"
88 "movdqa 16(%0), %%xmm4 \n\t"
89 "psubw %%xmm2, %%xmm0 \n\t"
90 "psubw %%xmm6, %%xmm4 \n\t"
91 "movdqa %%xmm0, (%0) \n\t"
92 "movdqa %%xmm4, 16(%0) \n\t"
93 :: "r"(&dst[i]), "r"(&b[i])
94 : "memory"
95 );
96 }
97 snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
98 }
99
100 { // Lift 2
101 IDWTELEM * const ref = b+w2 - 1;
102 IDWTELEM b_0 = b[0];
103
104 i = 0;
105 asm volatile(
106 "psllw $15, %%xmm7 \n\t"
107 "pcmpeqw %%xmm6, %%xmm6 \n\t"
108 "psrlw $13, %%xmm6 \n\t"
109 "paddw %%xmm7, %%xmm6 \n\t"
110 ::);
111 for(; i<w_l-15; i+=16){
112 asm volatile(
113 "movdqu (%1), %%xmm0 \n\t"
114 "movdqu 16(%1), %%xmm4 \n\t"
115 "movdqu 2(%1), %%xmm1 \n\t"
116 "movdqu 18(%1), %%xmm5 \n\t" //FIXME try aligned reads and shifts
117 "paddw %%xmm6, %%xmm0 \n\t"
118 "paddw %%xmm6, %%xmm4 \n\t"
119 "paddw %%xmm7, %%xmm1 \n\t"
120 "paddw %%xmm7, %%xmm5 \n\t"
121 "pavgw %%xmm1, %%xmm0 \n\t"
122 "pavgw %%xmm5, %%xmm4 \n\t"
123 "psubw %%xmm7, %%xmm0 \n\t"
124 "psubw %%xmm7, %%xmm4 \n\t"
125 "psraw $1, %%xmm0 \n\t"
126 "psraw $1, %%xmm4 \n\t"
127 "movdqa (%0), %%xmm1 \n\t"
128 "movdqa 16(%0), %%xmm5 \n\t"
129 "paddw %%xmm1, %%xmm0 \n\t"
130 "paddw %%xmm5, %%xmm4 \n\t"
131 "psraw $2, %%xmm0 \n\t"
132 "psraw $2, %%xmm4 \n\t"
133 "paddw %%xmm1, %%xmm0 \n\t"
134 "paddw %%xmm5, %%xmm4 \n\t"
135 "movdqa %%xmm0, (%0) \n\t"
136 "movdqa %%xmm4, 16(%0) \n\t"
137 :: "r"(&b[i]), "r"(&ref[i])
138 : "memory"
139 );
140 }
141 snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
142 b[0] = b_0 + ((2 * ref[1] + W_BO-1 + 4 * b_0) >> W_BS);
143 }
144
145 { // Lift 3
146 IDWTELEM * const src = b+w2;
147
148 i = 0;
149 for(; (((long)&temp[i]) & 0x1F) && i<w_r; i++){
150 temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);
151 }
152 for(; i<w_r-7; i+=8){
153 asm volatile(
154 "movdqu 2(%1), %%xmm2 \n\t"
155 "movdqu 18(%1), %%xmm6 \n\t"
156 "paddw (%1), %%xmm2 \n\t"
157 "paddw 16(%1), %%xmm6 \n\t"
158 "movdqu (%0), %%xmm0 \n\t"
159 "movdqu 16(%0), %%xmm4 \n\t"
160 "paddw %%xmm2, %%xmm0 \n\t"
161 "paddw %%xmm6, %%xmm4 \n\t"
162 "psraw $1, %%xmm2 \n\t"
163 "psraw $1, %%xmm6 \n\t"
164 "paddw %%xmm0, %%xmm2 \n\t"
165 "paddw %%xmm4, %%xmm6 \n\t"
166 "movdqa %%xmm2, (%2) \n\t"
167 "movdqa %%xmm6, 16(%2) \n\t"
168 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
169 : "memory"
170 );
171 }
172 snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
173 }
174
175 {
176 snow_interleave_line_header(&i, width, b, temp);
177
178 for (; (i & 0x3E) != 0x3E; i-=2){
179 b[i+1] = temp[i>>1];
180 b[i] = b[i>>1];
181 }
182 for (i-=62; i>=0; i-=64){
183 asm volatile(
184 "movdqa (%1), %%xmm0 \n\t"
185 "movdqa 16(%1), %%xmm2 \n\t"
186 "movdqa 32(%1), %%xmm4 \n\t"
187 "movdqa 48(%1), %%xmm6 \n\t"
188 "movdqa (%1), %%xmm1 \n\t"
189 "movdqa 16(%1), %%xmm3 \n\t"
190 "movdqa 32(%1), %%xmm5 \n\t"
191 "movdqa 48(%1), %%xmm7 \n\t"
192 "punpcklwd (%2), %%xmm0 \n\t"
193 "punpcklwd 16(%2), %%xmm2 \n\t"
194 "punpcklwd 32(%2), %%xmm4 \n\t"
195 "punpcklwd 48(%2), %%xmm6 \n\t"
196 "movdqa %%xmm0, (%0) \n\t"
197 "movdqa %%xmm2, 32(%0) \n\t"
198 "movdqa %%xmm4, 64(%0) \n\t"
199 "movdqa %%xmm6, 96(%0) \n\t"
200 "punpckhwd (%2), %%xmm1 \n\t"
201 "punpckhwd 16(%2), %%xmm3 \n\t"
202 "punpckhwd 32(%2), %%xmm5 \n\t"
203 "punpckhwd 48(%2), %%xmm7 \n\t"
204 "movdqa %%xmm1, 16(%0) \n\t"
205 "movdqa %%xmm3, 48(%0) \n\t"
206 "movdqa %%xmm5, 80(%0) \n\t"
207 "movdqa %%xmm7, 112(%0) \n\t"
208 :: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])
209 : "memory"
210 );
211 }
212 }
213 }
214
215 void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, int width){
216 const int w2= (width+1)>>1;
217 IDWTELEM temp[width >> 1];
218 const int w_l= (width>>1);
219 const int w_r= w2 - 1;
220 int i;
221
222 { // Lift 0
223 IDWTELEM * const ref = b + w2 - 1;
224
225 i = 1;
226 b[0] = b[0] - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
227 asm volatile(
228 "pcmpeqw %%mm7, %%mm7 \n\t"
229 "pcmpeqw %%mm3, %%mm3 \n\t"
230 "psllw $1, %%mm3 \n\t"
231 "paddw %%mm7, %%mm3 \n\t"
232 "psllw $13, %%mm3 \n\t"
233 ::);
234 for(; i<w_l-7; i+=8){
235 asm volatile(
236 "movq (%1), %%mm2 \n\t"
237 "movq 8(%1), %%mm6 \n\t"
238 "paddw 2(%1), %%mm2 \n\t"
239 "paddw 10(%1), %%mm6 \n\t"
240 "paddw %%mm7, %%mm2 \n\t"
241 "paddw %%mm7, %%mm6 \n\t"
242 "pmulhw %%mm3, %%mm2 \n\t"
243 "pmulhw %%mm3, %%mm6 \n\t"
244 "paddw (%0), %%mm2 \n\t"
245 "paddw 8(%0), %%mm6 \n\t"
246 "movq %%mm2, (%0) \n\t"
247 "movq %%mm6, 8(%0) \n\t"
248 :: "r"(&b[i]), "r"(&ref[i])
249 : "memory"
250 );
251 }
252 snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
253 }
254
255 { // Lift 1
256 IDWTELEM * const dst = b+w2;
257
258 i = 0;
259 for(; i<w_r-7; i+=8){
260 asm volatile(
261 "movq (%1), %%mm2 \n\t"
262 "movq 8(%1), %%mm6 \n\t"
263 "paddw 2(%1), %%mm2 \n\t"
264 "paddw 10(%1), %%mm6 \n\t"
265 "movq (%0), %%mm0 \n\t"
266 "movq 8(%0), %%mm4 \n\t"
267 "psubw %%mm2, %%mm0 \n\t"
268 "psubw %%mm6, %%mm4 \n\t"
269 "movq %%mm0, (%0) \n\t"
270 "movq %%mm4, 8(%0) \n\t"
271 :: "r"(&dst[i]), "r"(&b[i])
272 : "memory"
273 );
274 }
275 snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
276 }
277
278 { // Lift 2
279 IDWTELEM * const ref = b+w2 - 1;
280
281 i = 1;
282 b[0] = b[0] + (((2 * ref[1] + W_BO) + 4 * b[0]) >> W_BS);
283 asm volatile(
284 "psllw $15, %%mm7 \n\t"
285 "pcmpeqw %%mm6, %%mm6 \n\t"
286 "psrlw $13, %%mm6 \n\t"
287 "paddw %%mm7, %%mm6 \n\t"
288 ::);
289 for(; i<w_l-7; i+=8){
290 asm volatile(
291 "movq (%1), %%mm0 \n\t"
292 "movq 8(%1), %%mm4 \n\t"
293 "movq 2(%1), %%mm1 \n\t"
294 "movq 10(%1), %%mm5 \n\t"
295 "paddw %%mm6, %%mm0 \n\t"
296 "paddw %%mm6, %%mm4 \n\t"
297 "paddw %%mm7, %%mm1 \n\t"
298 "paddw %%mm7, %%mm5 \n\t"
299 "pavgw %%mm1, %%mm0 \n\t"
300 "pavgw %%mm5, %%mm4 \n\t"
301 "psubw %%mm7, %%mm0 \n\t"
302 "psubw %%mm7, %%mm4 \n\t"
303 "psraw $1, %%mm0 \n\t"
304 "psraw $1, %%mm4 \n\t"
305 "movq (%0), %%mm1 \n\t"
306 "movq 8(%0), %%mm5 \n\t"
307 "paddw %%mm1, %%mm0 \n\t"
308 "paddw %%mm5, %%mm4 \n\t"
309 "psraw $2, %%mm0 \n\t"
310 "psraw $2, %%mm4 \n\t"
311 "paddw %%mm1, %%mm0 \n\t"
312 "paddw %%mm5, %%mm4 \n\t"
313 "movq %%mm0, (%0) \n\t"
314 "movq %%mm4, 8(%0) \n\t"
315 :: "r"(&b[i]), "r"(&ref[i])
316 : "memory"
317 );
318 }
319 snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
320 }
321
322 { // Lift 3
323 IDWTELEM * const src = b+w2;
324 i = 0;
325
326 for(; i<w_r-7; i+=8){
327 asm volatile(
328 "movq 2(%1), %%mm2 \n\t"
329 "movq 10(%1), %%mm6 \n\t"
330 "paddw (%1), %%mm2 \n\t"
331 "paddw 8(%1), %%mm6 \n\t"
332 "movq (%0), %%mm0 \n\t"
333 "movq 8(%0), %%mm4 \n\t"
334 "paddw %%mm2, %%mm0 \n\t"
335 "paddw %%mm6, %%mm4 \n\t"
336 "psraw $1, %%mm2 \n\t"
337 "psraw $1, %%mm6 \n\t"
338 "paddw %%mm0, %%mm2 \n\t"
339 "paddw %%mm4, %%mm6 \n\t"
340 "movq %%mm2, (%2) \n\t"
341 "movq %%mm6, 8(%2) \n\t"
342 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
343 : "memory"
344 );
345 }
346 snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
347 }
348
349 {
350 snow_interleave_line_header(&i, width, b, temp);
351
352 for (; (i & 0x1E) != 0x1E; i-=2){
353 b[i+1] = temp[i>>1];
354 b[i] = b[i>>1];
355 }
356 for (i-=30; i>=0; i-=32){
357 asm volatile(
358 "movq (%1), %%mm0 \n\t"
359 "movq 8(%1), %%mm2 \n\t"
360 "movq 16(%1), %%mm4 \n\t"
361 "movq 24(%1), %%mm6 \n\t"
362 "movq (%1), %%mm1 \n\t"
363 "movq 8(%1), %%mm3 \n\t"
364 "movq 16(%1), %%mm5 \n\t"
365 "movq 24(%1), %%mm7 \n\t"
366 "punpcklwd (%2), %%mm0 \n\t"
367 "punpcklwd 8(%2), %%mm2 \n\t"
368 "punpcklwd 16(%2), %%mm4 \n\t"
369 "punpcklwd 24(%2), %%mm6 \n\t"
370 "movq %%mm0, (%0) \n\t"
371 "movq %%mm2, 16(%0) \n\t"
372 "movq %%mm4, 32(%0) \n\t"
373 "movq %%mm6, 48(%0) \n\t"
374 "punpckhwd (%2), %%mm1 \n\t"
375 "punpckhwd 8(%2), %%mm3 \n\t"
376 "punpckhwd 16(%2), %%mm5 \n\t"
377 "punpckhwd 24(%2), %%mm7 \n\t"
378 "movq %%mm1, 8(%0) \n\t"
379 "movq %%mm3, 24(%0) \n\t"
380 "movq %%mm5, 40(%0) \n\t"
381 "movq %%mm7, 56(%0) \n\t"
382 :: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])
383 : "memory"
384 );
385 }
386 }
387 }
388
389 #ifdef HAVE_7REGS
390 #define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
391 ""op" ("r",%%"REG_d"), %%"t0" \n\t"\
392 ""op" 16("r",%%"REG_d"), %%"t1" \n\t"\
393 ""op" 32("r",%%"REG_d"), %%"t2" \n\t"\
394 ""op" 48("r",%%"REG_d"), %%"t3" \n\t"
395
396 #define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
397 snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
398
399 #define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
400 snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
401
402 #define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
403 "psubw %%"s0", %%"t0" \n\t"\
404 "psubw %%"s1", %%"t1" \n\t"\
405 "psubw %%"s2", %%"t2" \n\t"\
406 "psubw %%"s3", %%"t3" \n\t"
407
408 #define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
409 "movdqa %%"s0", ("w",%%"REG_d") \n\t"\
410 "movdqa %%"s1", 16("w",%%"REG_d") \n\t"\
411 "movdqa %%"s2", 32("w",%%"REG_d") \n\t"\
412 "movdqa %%"s3", 48("w",%%"REG_d") \n\t"
413
414 #define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
415 "psraw $"n", %%"t0" \n\t"\
416 "psraw $"n", %%"t1" \n\t"\
417 "psraw $"n", %%"t2" \n\t"\
418 "psraw $"n", %%"t3" \n\t"
419
420 #define snow_vertical_compose_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
421 "paddw %%"s0", %%"t0" \n\t"\
422 "paddw %%"s1", %%"t1" \n\t"\
423 "paddw %%"s2", %%"t2" \n\t"\
424 "paddw %%"s3", %%"t3" \n\t"
425
426 #define snow_vertical_compose_r2r_pmulhw(s0,s1,s2,s3,t0,t1,t2,t3)\
427 "pmulhw %%"s0", %%"t0" \n\t"\
428 "pmulhw %%"s1", %%"t1" \n\t"\
429 "pmulhw %%"s2", %%"t2" \n\t"\
430 "pmulhw %%"s3", %%"t3" \n\t"
431
432 #define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
433 "movdqa %%"s0", %%"t0" \n\t"\
434 "movdqa %%"s1", %%"t1" \n\t"\
435 "movdqa %%"s2", %%"t2" \n\t"\
436 "movdqa %%"s3", %%"t3" \n\t"
437
438 void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
439 long i = width;
440
441 while(i & 0x1F)
442 {
443 i--;
444 b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
445 b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
446 b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
447 b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
448 }
449 i+=i;
450
451 asm volatile (
452 "jmp 2f \n\t"
453 "1: \n\t"
454 snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
455 snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
456
457
458 "pcmpeqw %%xmm0, %%xmm0 \n\t"
459 "pcmpeqw %%xmm2, %%xmm2 \n\t"
460 "paddw %%xmm2, %%xmm2 \n\t"
461 "paddw %%xmm0, %%xmm2 \n\t"
462 "psllw $13, %%xmm2 \n\t"
463 snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
464 snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
465 snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
466 snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
467 snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
468 snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
469 snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
470 snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
471
472 "pcmpeqw %%xmm7, %%xmm7 \n\t"
473 "pcmpeqw %%xmm5, %%xmm5 \n\t"
474 "psllw $15, %%xmm7 \n\t"
475 "psrlw $13, %%xmm5 \n\t"
476 "paddw %%xmm7, %%xmm5 \n\t"
477 snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
478 "movq (%2,%%"REG_d"), %%xmm1 \n\t"
479 "movq 8(%2,%%"REG_d"), %%xmm3 \n\t"
480 "paddw %%xmm7, %%xmm1 \n\t"
481 "paddw %%xmm7, %%xmm3 \n\t"
482 "pavgw %%xmm1, %%xmm0 \n\t"
483 "pavgw %%xmm3, %%xmm2 \n\t"
484 "movq 16(%2,%%"REG_d"), %%xmm1 \n\t"
485 "movq 24(%2,%%"REG_d"), %%xmm3 \n\t"
486 "paddw %%xmm7, %%xmm1 \n\t"
487 "paddw %%xmm7, %%xmm3 \n\t"
488 "pavgw %%xmm1, %%xmm4 \n\t"
489 "pavgw %%xmm3, %%xmm6 \n\t"
490 snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
491 snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
492 snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
493
494 snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
495 snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
496 snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
497 snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
498 snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
499 snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
500 snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
501 snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
502 snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
503
504 "2: \n\t"
505 "sub $64, %%"REG_d" \n\t"
506 "jge 1b \n\t"
507 :"+d"(i)
508 :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
509 }
510
511 #define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
512 ""op" ("r",%%"REG_d"), %%"t0" \n\t"\
513 ""op" 8("r",%%"REG_d"), %%"t1" \n\t"\
514 ""op" 16("r",%%"REG_d"), %%"t2" \n\t"\
515 ""op" 24("r",%%"REG_d"), %%"t3" \n\t"
516
517 #define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
518 snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
519
520 #define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
521 snow_vertical_compose_mmx_load_add("paddw",r,t0,t1,t2,t3)
522
523 #define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
524 "movq %%"s0", ("w",%%"REG_d") \n\t"\
525 "movq %%"s1", 8("w",%%"REG_d") \n\t"\
526 "movq %%"s2", 16("w",%%"REG_d") \n\t"\
527 "movq %%"s3", 24("w",%%"REG_d") \n\t"
528
529 #define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
530 "movq %%"s0", %%"t0" \n\t"\
531 "movq %%"s1", %%"t1" \n\t"\
532 "movq %%"s2", %%"t2" \n\t"\
533 "movq %%"s3", %%"t3" \n\t"
534
535
536 void ff_snow_vertical_compose97i_mmx(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
537 long i = width;
538 while(i & 15)
539 {
540 i--;
541 b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
542 b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
543 b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
544 b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
545 }
546 i+=i;
547 asm volatile(
548 "jmp 2f \n\t"
549 "1: \n\t"
550
551 snow_vertical_compose_mmx_load("%4","mm1","mm3","mm5","mm7")
552 snow_vertical_compose_mmx_add("%6","mm1","mm3","mm5","mm7")
553 "pcmpeqw %%mm0, %%mm0 \n\t"
554 "pcmpeqw %%mm2, %%mm2 \n\t"
555 "paddw %%mm2, %%mm2 \n\t"
556 "paddw %%mm0, %%mm2 \n\t"
557 "psllw $13, %%mm2 \n\t"
558 snow_vertical_compose_r2r_add("mm0","mm0","mm0","mm0","mm1","mm3","mm5","mm7")
559 snow_vertical_compose_r2r_pmulhw("mm2","mm2","mm2","mm2","mm1","mm3","mm5","mm7")
560 snow_vertical_compose_mmx_add("%5","mm1","mm3","mm5","mm7")
561 snow_vertical_compose_mmx_store("%5","mm1","mm3","mm5","mm7")
562 snow_vertical_compose_mmx_load("%4","mm0","mm2","mm4","mm6")
563 snow_vertical_compose_mmx_add("%3","mm1","mm3","mm5","mm7")
564 snow_vertical_compose_r2r_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
565 snow_vertical_compose_mmx_store("%4","mm0","mm2","mm4","mm6")
566 "pcmpeqw %%mm7, %%mm7 \n\t"
567 "pcmpeqw %%mm5, %%mm5 \n\t"
568 "psllw $15, %%mm7 \n\t"
569 "psrlw $13, %%mm5 \n\t"
570 "paddw %%mm7, %%mm5 \n\t"
571 snow_vertical_compose_r2r_add("mm5","mm5","mm5","mm5","mm0","mm2","mm4","mm6")
572 "movq (%2,%%"REG_d"), %%mm1 \n\t"
573 "movq 8(%2,%%"REG_d"), %%mm3 \n\t"
574 "paddw %%mm7, %%mm1 \n\t"
575 "paddw %%mm7, %%mm3 \n\t"
576 "pavgw %%mm1, %%mm0 \n\t"
577 "pavgw %%mm3, %%mm2 \n\t"
578 "movq 16(%2,%%"REG_d"), %%mm1 \n\t"
579 "movq 24(%2,%%"REG_d"), %%mm3 \n\t"
580 "paddw %%mm7, %%mm1 \n\t"
581 "paddw %%mm7, %%mm3 \n\t"
582 "pavgw %%mm1, %%mm4 \n\t"
583 "pavgw %%mm3, %%mm6 \n\t"
584 snow_vertical_compose_r2r_sub("mm7","mm7","mm7","mm7","mm0","mm2","mm4","mm6")
585 snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
586 snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
587
588 snow_vertical_compose_sra("2","mm0","mm2","mm4","mm6")
589 snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
590 snow_vertical_compose_mmx_store("%3","mm0","mm2","mm4","mm6")
591 snow_vertical_compose_mmx_add("%1","mm0","mm2","mm4","mm6")
592 snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
593 snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
594 snow_vertical_compose_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
595 snow_vertical_compose_mmx_add("%2","mm0","mm2","mm4","mm6")
596 snow_vertical_compose_mmx_store("%2","mm0","mm2","mm4","mm6")
597
598 "2: \n\t"
599 "sub $32, %%"REG_d" \n\t"
600 "jge 1b \n\t"
601 :"+d"(i)
602 :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
603 }
604 #endif //HAVE_7REGS
605
606 #define snow_inner_add_yblock_sse2_header \
607 IDWTELEM * * dst_array = sb->line + src_y;\
608 long tmp;\
609 asm volatile(\
610 "mov %7, %%"REG_c" \n\t"\
611 "mov %6, %2 \n\t"\
612 "mov %4, %%"REG_S" \n\t"\
613 "pxor %%xmm7, %%xmm7 \n\t" /* 0 */\
614 "pcmpeqd %%xmm3, %%xmm3 \n\t"\
615 "psllw $15, %%xmm3 \n\t"\
616 "psrlw $12, %%xmm3 \n\t" /* FRAC_BITS >> 1 */\
617 "1: \n\t"\
618 "mov %1, %%"REG_D" \n\t"\
619 "mov (%%"REG_D"), %%"REG_D" \n\t"\
620 "add %3, %%"REG_D" \n\t"
621
622 #define snow_inner_add_yblock_sse2_start_8(out_reg1, out_reg2, ptr_offset, s_offset)\
623 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
624 "movq (%%"REG_d"), %%"out_reg1" \n\t"\
625 "movq (%%"REG_d", %%"REG_c"), %%"out_reg2" \n\t"\
626 "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
627 "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
628 "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
629 "movq "s_offset"+16(%%"REG_S"), %%xmm4 \n\t"\
630 "punpcklbw %%xmm7, %%xmm0 \n\t"\
631 "punpcklbw %%xmm7, %%xmm4 \n\t"\
632 "pmullw %%xmm0, %%"out_reg1" \n\t"\
633 "pmullw %%xmm4, %%"out_reg2" \n\t"
634
635 #define snow_inner_add_yblock_sse2_start_16(out_reg1, out_reg2, ptr_offset, s_offset)\
636 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
637 "movq (%%"REG_d"), %%"out_reg1" \n\t"\
638 "movq 8(%%"REG_d"), %%"out_reg2" \n\t"\
639 "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
640 "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
641 "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
642 "movq "s_offset"+8(%%"REG_S"), %%xmm4 \n\t"\
643 "punpcklbw %%xmm7, %%xmm0 \n\t"\
644 "punpcklbw %%xmm7, %%xmm4 \n\t"\
645 "pmullw %%xmm0, %%"out_reg1" \n\t"\
646 "pmullw %%xmm4, %%"out_reg2" \n\t"
647
648 #define snow_inner_add_yblock_sse2_accum_8(ptr_offset, s_offset) \
649 snow_inner_add_yblock_sse2_start_8("xmm2", "xmm6", ptr_offset, s_offset)\
650 "paddusw %%xmm2, %%xmm1 \n\t"\
651 "paddusw %%xmm6, %%xmm5 \n\t"
652
653 #define snow_inner_add_yblock_sse2_accum_16(ptr_offset, s_offset) \
654 snow_inner_add_yblock_sse2_start_16("xmm2", "xmm6", ptr_offset, s_offset)\
655 "paddusw %%xmm2, %%xmm1 \n\t"\
656 "paddusw %%xmm6, %%xmm5 \n\t"
657
658 #define snow_inner_add_yblock_sse2_end_common1\
659 "add $32, %%"REG_S" \n\t"\
660 "add %%"REG_c", %0 \n\t"\
661 "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
662 "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
663 "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
664 "add %%"REG_c", (%%"REG_a") \n\t"
665
666 #define snow_inner_add_yblock_sse2_end_common2\
667 "jnz 1b \n\t"\
668 :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
669 :\
670 "rm"((long)(src_x<<1)),"m"(obmc),"a"(block),"m"((long)b_h),"m"((long)src_stride):\
671 "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
672
673 #define snow_inner_add_yblock_sse2_end_8\
674 "sal $1, %%"REG_c" \n\t"\
675 "add $"PTR_SIZE"*2, %1 \n\t"\
676 snow_inner_add_yblock_sse2_end_common1\
677 "sar $1, %%"REG_c" \n\t"\
678 "sub $2, %2 \n\t"\
679 snow_inner_add_yblock_sse2_end_common2
680
681 #define snow_inner_add_yblock_sse2_end_16\
682 "add $"PTR_SIZE"*1, %1 \n\t"\
683 snow_inner_add_yblock_sse2_end_common1\
684 "dec %2 \n\t"\
685 snow_inner_add_yblock_sse2_end_common2
686
687 static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
688 int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
689 snow_inner_add_yblock_sse2_header
690 snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")
691 snow_inner_add_yblock_sse2_accum_8("2", "8")
692 snow_inner_add_yblock_sse2_accum_8("1", "128")
693 snow_inner_add_yblock_sse2_accum_8("0", "136")
694
695 "mov %0, %%"REG_d" \n\t"
696 "movdqa (%%"REG_D"), %%xmm0 \n\t"
697 "movdqa %%xmm1, %%xmm2 \n\t"
698
699 "punpckhwd %%xmm7, %%xmm1 \n\t"
700 "punpcklwd %%xmm7, %%xmm2 \n\t"
701 "paddd %%xmm2, %%xmm0 \n\t"
702 "movdqa 16(%%"REG_D"), %%xmm2 \n\t"
703 "paddd %%xmm1, %%xmm2 \n\t"
704 "paddd %%xmm3, %%xmm0 \n\t"
705 "paddd %%xmm3, %%xmm2 \n\t"
706
707 "mov %1, %%"REG_D" \n\t"
708 "mov "PTR_SIZE"(%%"REG_D"), %%"REG_D";\n\t"
709 "add %3, %%"REG_D" \n\t"
710
711 "movdqa (%%"REG_D"), %%xmm4 \n\t"
712 "movdqa %%xmm5, %%xmm6 \n\t"
713 "punpckhwd %%xmm7, %%xmm5 \n\t"
714 "punpcklwd %%xmm7, %%xmm6 \n\t"
715 "paddd %%xmm6, %%xmm4 \n\t"
716 "movdqa 16(%%"REG_D"), %%xmm6 \n\t"
717 "paddd %%xmm5, %%xmm6 \n\t"
718 "paddd %%xmm3, %%xmm4 \n\t"
719 "paddd %%xmm3, %%xmm6 \n\t"
720
721 "psrad $8, %%xmm0 \n\t" /* FRAC_BITS. */
722 "psrad $8, %%xmm2 \n\t" /* FRAC_BITS. */
723 "packssdw %%xmm2, %%xmm0 \n\t"
724 "packuswb %%xmm7, %%xmm0 \n\t"
725 "movq %%xmm0, (%%"REG_d") \n\t"
726
727 "psrad $8, %%xmm4 \n\t" /* FRAC_BITS. */
728 "psrad $8, %%xmm6 \n\t" /* FRAC_BITS. */
729 "packssdw %%xmm6, %%xmm4 \n\t"
730 "packuswb %%xmm7, %%xmm4 \n\t"
731 "movq %%xmm4, (%%"REG_d",%%"REG_c");\n\t"
732 snow_inner_add_yblock_sse2_end_8
733 }
734
735 static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
736 int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
737 snow_inner_add_yblock_sse2_header
738 snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")
739 snow_inner_add_yblock_sse2_accum_16("2", "16")
740 snow_inner_add_yblock_sse2_accum_16("1", "512")
741 snow_inner_add_yblock_sse2_accum_16("0", "528")
742
743 "mov %0, %%"REG_d" \n\t"
744 "psrlw $4, %%xmm1 \n\t"
745 "psrlw $4, %%xmm5 \n\t"
746 "paddw (%%"REG_D"), %%xmm1 \n\t"
747 "paddw 16(%%"REG_D"), %%xmm5 \n\t"
748 "paddw %%xmm3, %%xmm1 \n\t"
749 "paddw %%xmm3, %%xmm5 \n\t"
750 "psraw $4, %%xmm1 \n\t" /* FRAC_BITS. */
751 "psraw $4, %%xmm5 \n\t" /* FRAC_BITS. */
752 "packuswb %%xmm5, %%xmm1 \n\t"
753
754 "movdqu %%xmm1, (%%"REG_d") \n\t"
755
756 snow_inner_add_yblock_sse2_end_16
757 }
758
759 #define snow_inner_add_yblock_mmx_header \
760 IDWTELEM * * dst_array = sb->line + src_y;\
761 long tmp;\
762 asm volatile(\
763 "mov %7, %%"REG_c" \n\t"\
764 "mov %6, %2 \n\t"\
765 "mov %4, %%"REG_S" \n\t"\
766 "pxor %%mm7, %%mm7 \n\t" /* 0 */\
767 "pcmpeqd %%mm3, %%mm3 \n\t"\
768 "psllw $15, %%mm3 \n\t"\
769 "psrlw $12, %%mm3 \n\t" /* FRAC_BITS >> 1 */\
770 "1: \n\t"\
771 "mov %1, %%"REG_D" \n\t"\
772 "mov (%%"REG_D"), %%"REG_D" \n\t"\
773 "add %3, %%"REG_D" \n\t"
774
775 #define snow_inner_add_yblock_mmx_start(out_reg1, out_reg2, ptr_offset, s_offset, d_offset)\
776 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
777 "movd "d_offset"(%%"REG_d"), %%"out_reg1" \n\t"\
778 "movd "d_offset"+4(%%"REG_d"), %%"out_reg2" \n\t"\
779 "punpcklbw %%mm7, %%"out_reg1" \n\t"\
780 "punpcklbw %%mm7, %%"out_reg2" \n\t"\
781 "movd "s_offset"(%%"REG_S"), %%mm0 \n\t"\
782 "movd "s_offset"+4(%%"REG_S"), %%mm4 \n\t"\
783 "punpcklbw %%mm7, %%mm0 \n\t"\
784 "punpcklbw %%mm7, %%mm4 \n\t"\
785 "pmullw %%mm0, %%"out_reg1" \n\t"\
786 "pmullw %%mm4, %%"out_reg2" \n\t"
787
788 #define snow_inner_add_yblock_mmx_accum(ptr_offset, s_offset, d_offset) \
789 snow_inner_add_yblock_mmx_start("mm2", "mm6", ptr_offset, s_offset, d_offset)\
790 "paddusw %%mm2, %%mm1 \n\t"\
791 "paddusw %%mm6, %%mm5 \n\t"
792
793 #define snow_inner_add_yblock_mmx_mix(read_offset, write_offset)\
794 "mov %0, %%"REG_d" \n\t"\
795 "psrlw $4, %%mm1 \n\t"\
796 "psrlw $4, %%mm5 \n\t"\
797 "paddw "read_offset"(%%"REG_D"), %%mm1 \n\t"\
798 "paddw "read_offset"+8(%%"REG_D"), %%mm5 \n\t"\
799 "paddw %%mm3, %%mm1 \n\t"\
800 "paddw %%mm3, %%mm5 \n\t"\
801 "psraw $4, %%mm1 \n\t"\
802 "psraw $4, %%mm5 \n\t"\
803 "packuswb %%mm5, %%mm1 \n\t"\
804 "movq %%mm1, "write_offset"(%%"REG_d") \n\t"
805
806 #define snow_inner_add_yblock_mmx_end(s_step)\
807 "add $"s_step", %%"REG_S" \n\t"\
808 "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
809 "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
810 "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
811 "add %%"REG_c", (%%"REG_a") \n\t"\
812 "add $"PTR_SIZE"*1, %1 \n\t"\
813 "add %%"REG_c", %0 \n\t"\
814 "dec %2 \n\t"\
815 "jnz 1b \n\t"\
816 :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
817 :\
818 "rm"((long)(src_x<<1)),"m"(obmc),"a"(block),"m"((long)b_h),"m"((long)src_stride):\
819 "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
820
821 static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
822 int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
823 snow_inner_add_yblock_mmx_header
824 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
825 snow_inner_add_yblock_mmx_accum("2", "8", "0")
826 snow_inner_add_yblock_mmx_accum("1", "128", "0")
827 snow_inner_add_yblock_mmx_accum("0", "136", "0")
828 snow_inner_add_yblock_mmx_mix("0", "0")
829 snow_inner_add_yblock_mmx_end("16")
830 }
831
832 static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const long obmc_stride, uint8_t * * block, int b_w, long b_h,
833 int src_x, int src_y, long src_stride, slice_buffer * sb, int add, uint8_t * dst8){
834 snow_inner_add_yblock_mmx_header
835 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
836 snow_inner_add_yblock_mmx_accum("2", "16", "0")
837 snow_inner_add_yblock_mmx_accum("1", "512", "0")
838 snow_inner_add_yblock_mmx_accum("0", "528", "0")
839 snow_inner_add_yblock_mmx_mix("0", "0")
840
841 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "8", "8")
842 snow_inner_add_yblock_mmx_accum("2", "24", "8")
843 snow_inner_add_yblock_mmx_accum("1", "520", "8")
844 snow_inner_add_yblock_mmx_accum("0", "536", "8")
845 snow_inner_add_yblock_mmx_mix("16", "8")
846 snow_inner_add_yblock_mmx_end("32")
847 }
848
849 void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
850 int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
851
852 if (b_w == 16)
853 inner_add_yblock_bw_16_obmc_32_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
854 else if (b_w == 8 && obmc_stride == 16) {
855 if (!(b_h & 1))
856 inner_add_yblock_bw_8_obmc_16_bh_even_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
857 else
858 inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
859 } else
860 ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
861 }
862
863 void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
864 int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
865 if (b_w == 16)
866 inner_add_yblock_bw_16_obmc_32_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
867 else if (b_w == 8 && obmc_stride == 16)
868 inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
869 else
870 ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
871 }