Separate DWT from snow and dsputil
[libav.git] / libavcodec / x86 / 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 "libavutil/x86_cpu.h"
23 #include "libavcodec/avcodec.h"
24 #include "libavcodec/snow.h"
25 #include "libavcodec/dwt.h"
26 #include "dsputil_mmx.h"
27
28 static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){
29 const int w2= (width+1)>>1;
30 DECLARE_ALIGNED(16, IDWTELEM, temp)[width>>1];
31 const int w_l= (width>>1);
32 const int w_r= w2 - 1;
33 int i;
34
35 { // Lift 0
36 IDWTELEM * const ref = b + w2 - 1;
37 IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice
38 // (the first time erroneously), we allow the SSE2 code to run an extra pass.
39 // The savings in code and time are well worth having to store this value and
40 // calculate b[0] correctly afterwards.
41
42 i = 0;
43 __asm__ volatile(
44 "pcmpeqd %%xmm7, %%xmm7 \n\t"
45 "pcmpeqd %%xmm3, %%xmm3 \n\t"
46 "psllw $1, %%xmm3 \n\t"
47 "paddw %%xmm7, %%xmm3 \n\t"
48 "psllw $13, %%xmm3 \n\t"
49 ::);
50 for(; i<w_l-15; i+=16){
51 __asm__ volatile(
52 "movdqu (%1), %%xmm1 \n\t"
53 "movdqu 16(%1), %%xmm5 \n\t"
54 "movdqu 2(%1), %%xmm2 \n\t"
55 "movdqu 18(%1), %%xmm6 \n\t"
56 "paddw %%xmm1, %%xmm2 \n\t"
57 "paddw %%xmm5, %%xmm6 \n\t"
58 "paddw %%xmm7, %%xmm2 \n\t"
59 "paddw %%xmm7, %%xmm6 \n\t"
60 "pmulhw %%xmm3, %%xmm2 \n\t"
61 "pmulhw %%xmm3, %%xmm6 \n\t"
62 "paddw (%0), %%xmm2 \n\t"
63 "paddw 16(%0), %%xmm6 \n\t"
64 "movdqa %%xmm2, (%0) \n\t"
65 "movdqa %%xmm6, 16(%0) \n\t"
66 :: "r"(&b[i]), "r"(&ref[i])
67 : "memory"
68 );
69 }
70 snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
71 b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
72 }
73
74 { // Lift 1
75 IDWTELEM * const dst = b+w2;
76
77 i = 0;
78 for(; (((x86_reg)&dst[i]) & 0x1F) && i<w_r; i++){
79 dst[i] = dst[i] - (b[i] + b[i + 1]);
80 }
81 for(; i<w_r-15; i+=16){
82 __asm__ volatile(
83 "movdqu (%1), %%xmm1 \n\t"
84 "movdqu 16(%1), %%xmm5 \n\t"
85 "movdqu 2(%1), %%xmm2 \n\t"
86 "movdqu 18(%1), %%xmm6 \n\t"
87 "paddw %%xmm1, %%xmm2 \n\t"
88 "paddw %%xmm5, %%xmm6 \n\t"
89 "movdqa (%0), %%xmm0 \n\t"
90 "movdqa 16(%0), %%xmm4 \n\t"
91 "psubw %%xmm2, %%xmm0 \n\t"
92 "psubw %%xmm6, %%xmm4 \n\t"
93 "movdqa %%xmm0, (%0) \n\t"
94 "movdqa %%xmm4, 16(%0) \n\t"
95 :: "r"(&dst[i]), "r"(&b[i])
96 : "memory"
97 );
98 }
99 snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
100 }
101
102 { // Lift 2
103 IDWTELEM * const ref = b+w2 - 1;
104 IDWTELEM b_0 = b[0];
105
106 i = 0;
107 __asm__ volatile(
108 "psllw $15, %%xmm7 \n\t"
109 "pcmpeqw %%xmm6, %%xmm6 \n\t"
110 "psrlw $13, %%xmm6 \n\t"
111 "paddw %%xmm7, %%xmm6 \n\t"
112 ::);
113 for(; i<w_l-15; i+=16){
114 __asm__ volatile(
115 "movdqu (%1), %%xmm0 \n\t"
116 "movdqu 16(%1), %%xmm4 \n\t"
117 "movdqu 2(%1), %%xmm1 \n\t"
118 "movdqu 18(%1), %%xmm5 \n\t" //FIXME try aligned reads and shifts
119 "paddw %%xmm6, %%xmm0 \n\t"
120 "paddw %%xmm6, %%xmm4 \n\t"
121 "paddw %%xmm7, %%xmm1 \n\t"
122 "paddw %%xmm7, %%xmm5 \n\t"
123 "pavgw %%xmm1, %%xmm0 \n\t"
124 "pavgw %%xmm5, %%xmm4 \n\t"
125 "psubw %%xmm7, %%xmm0 \n\t"
126 "psubw %%xmm7, %%xmm4 \n\t"
127 "psraw $1, %%xmm0 \n\t"
128 "psraw $1, %%xmm4 \n\t"
129 "movdqa (%0), %%xmm1 \n\t"
130 "movdqa 16(%0), %%xmm5 \n\t"
131 "paddw %%xmm1, %%xmm0 \n\t"
132 "paddw %%xmm5, %%xmm4 \n\t"
133 "psraw $2, %%xmm0 \n\t"
134 "psraw $2, %%xmm4 \n\t"
135 "paddw %%xmm1, %%xmm0 \n\t"
136 "paddw %%xmm5, %%xmm4 \n\t"
137 "movdqa %%xmm0, (%0) \n\t"
138 "movdqa %%xmm4, 16(%0) \n\t"
139 :: "r"(&b[i]), "r"(&ref[i])
140 : "memory"
141 );
142 }
143 snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
144 b[0] = b_0 + ((2 * ref[1] + W_BO-1 + 4 * b_0) >> W_BS);
145 }
146
147 { // Lift 3
148 IDWTELEM * const src = b+w2;
149
150 i = 0;
151 for(; (((x86_reg)&temp[i]) & 0x1F) && i<w_r; i++){
152 temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);
153 }
154 for(; i<w_r-7; i+=8){
155 __asm__ volatile(
156 "movdqu 2(%1), %%xmm2 \n\t"
157 "movdqu 18(%1), %%xmm6 \n\t"
158 "paddw (%1), %%xmm2 \n\t"
159 "paddw 16(%1), %%xmm6 \n\t"
160 "movdqu (%0), %%xmm0 \n\t"
161 "movdqu 16(%0), %%xmm4 \n\t"
162 "paddw %%xmm2, %%xmm0 \n\t"
163 "paddw %%xmm6, %%xmm4 \n\t"
164 "psraw $1, %%xmm2 \n\t"
165 "psraw $1, %%xmm6 \n\t"
166 "paddw %%xmm0, %%xmm2 \n\t"
167 "paddw %%xmm4, %%xmm6 \n\t"
168 "movdqa %%xmm2, (%2) \n\t"
169 "movdqa %%xmm6, 16(%2) \n\t"
170 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
171 : "memory"
172 );
173 }
174 snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
175 }
176
177 {
178 snow_interleave_line_header(&i, width, b, temp);
179
180 for (; (i & 0x3E) != 0x3E; i-=2){
181 b[i+1] = temp[i>>1];
182 b[i] = b[i>>1];
183 }
184 for (i-=62; i>=0; i-=64){
185 __asm__ volatile(
186 "movdqa (%1), %%xmm0 \n\t"
187 "movdqa 16(%1), %%xmm2 \n\t"
188 "movdqa 32(%1), %%xmm4 \n\t"
189 "movdqa 48(%1), %%xmm6 \n\t"
190 "movdqa (%1), %%xmm1 \n\t"
191 "movdqa 16(%1), %%xmm3 \n\t"
192 "movdqa 32(%1), %%xmm5 \n\t"
193 "movdqa 48(%1), %%xmm7 \n\t"
194 "punpcklwd (%2), %%xmm0 \n\t"
195 "punpcklwd 16(%2), %%xmm2 \n\t"
196 "punpcklwd 32(%2), %%xmm4 \n\t"
197 "punpcklwd 48(%2), %%xmm6 \n\t"
198 "movdqa %%xmm0, (%0) \n\t"
199 "movdqa %%xmm2, 32(%0) \n\t"
200 "movdqa %%xmm4, 64(%0) \n\t"
201 "movdqa %%xmm6, 96(%0) \n\t"
202 "punpckhwd (%2), %%xmm1 \n\t"
203 "punpckhwd 16(%2), %%xmm3 \n\t"
204 "punpckhwd 32(%2), %%xmm5 \n\t"
205 "punpckhwd 48(%2), %%xmm7 \n\t"
206 "movdqa %%xmm1, 16(%0) \n\t"
207 "movdqa %%xmm3, 48(%0) \n\t"
208 "movdqa %%xmm5, 80(%0) \n\t"
209 "movdqa %%xmm7, 112(%0) \n\t"
210 :: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])
211 : "memory"
212 );
213 }
214 }
215 }
216
217 static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, int width){
218 const int w2= (width+1)>>1;
219 IDWTELEM temp[width >> 1];
220 const int w_l= (width>>1);
221 const int w_r= w2 - 1;
222 int i;
223
224 { // Lift 0
225 IDWTELEM * const ref = b + w2 - 1;
226
227 i = 1;
228 b[0] = b[0] - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
229 __asm__ volatile(
230 "pcmpeqw %%mm7, %%mm7 \n\t"
231 "pcmpeqw %%mm3, %%mm3 \n\t"
232 "psllw $1, %%mm3 \n\t"
233 "paddw %%mm7, %%mm3 \n\t"
234 "psllw $13, %%mm3 \n\t"
235 ::);
236 for(; i<w_l-7; i+=8){
237 __asm__ volatile(
238 "movq (%1), %%mm2 \n\t"
239 "movq 8(%1), %%mm6 \n\t"
240 "paddw 2(%1), %%mm2 \n\t"
241 "paddw 10(%1), %%mm6 \n\t"
242 "paddw %%mm7, %%mm2 \n\t"
243 "paddw %%mm7, %%mm6 \n\t"
244 "pmulhw %%mm3, %%mm2 \n\t"
245 "pmulhw %%mm3, %%mm6 \n\t"
246 "paddw (%0), %%mm2 \n\t"
247 "paddw 8(%0), %%mm6 \n\t"
248 "movq %%mm2, (%0) \n\t"
249 "movq %%mm6, 8(%0) \n\t"
250 :: "r"(&b[i]), "r"(&ref[i])
251 : "memory"
252 );
253 }
254 snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
255 }
256
257 { // Lift 1
258 IDWTELEM * const dst = b+w2;
259
260 i = 0;
261 for(; i<w_r-7; i+=8){
262 __asm__ volatile(
263 "movq (%1), %%mm2 \n\t"
264 "movq 8(%1), %%mm6 \n\t"
265 "paddw 2(%1), %%mm2 \n\t"
266 "paddw 10(%1), %%mm6 \n\t"
267 "movq (%0), %%mm0 \n\t"
268 "movq 8(%0), %%mm4 \n\t"
269 "psubw %%mm2, %%mm0 \n\t"
270 "psubw %%mm6, %%mm4 \n\t"
271 "movq %%mm0, (%0) \n\t"
272 "movq %%mm4, 8(%0) \n\t"
273 :: "r"(&dst[i]), "r"(&b[i])
274 : "memory"
275 );
276 }
277 snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
278 }
279
280 { // Lift 2
281 IDWTELEM * const ref = b+w2 - 1;
282
283 i = 1;
284 b[0] = b[0] + (((2 * ref[1] + W_BO) + 4 * b[0]) >> W_BS);
285 __asm__ volatile(
286 "psllw $15, %%mm7 \n\t"
287 "pcmpeqw %%mm6, %%mm6 \n\t"
288 "psrlw $13, %%mm6 \n\t"
289 "paddw %%mm7, %%mm6 \n\t"
290 ::);
291 for(; i<w_l-7; i+=8){
292 __asm__ volatile(
293 "movq (%1), %%mm0 \n\t"
294 "movq 8(%1), %%mm4 \n\t"
295 "movq 2(%1), %%mm1 \n\t"
296 "movq 10(%1), %%mm5 \n\t"
297 "paddw %%mm6, %%mm0 \n\t"
298 "paddw %%mm6, %%mm4 \n\t"
299 "paddw %%mm7, %%mm1 \n\t"
300 "paddw %%mm7, %%mm5 \n\t"
301 "pavgw %%mm1, %%mm0 \n\t"
302 "pavgw %%mm5, %%mm4 \n\t"
303 "psubw %%mm7, %%mm0 \n\t"
304 "psubw %%mm7, %%mm4 \n\t"
305 "psraw $1, %%mm0 \n\t"
306 "psraw $1, %%mm4 \n\t"
307 "movq (%0), %%mm1 \n\t"
308 "movq 8(%0), %%mm5 \n\t"
309 "paddw %%mm1, %%mm0 \n\t"
310 "paddw %%mm5, %%mm4 \n\t"
311 "psraw $2, %%mm0 \n\t"
312 "psraw $2, %%mm4 \n\t"
313 "paddw %%mm1, %%mm0 \n\t"
314 "paddw %%mm5, %%mm4 \n\t"
315 "movq %%mm0, (%0) \n\t"
316 "movq %%mm4, 8(%0) \n\t"
317 :: "r"(&b[i]), "r"(&ref[i])
318 : "memory"
319 );
320 }
321 snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
322 }
323
324 { // Lift 3
325 IDWTELEM * const src = b+w2;
326 i = 0;
327
328 for(; i<w_r-7; i+=8){
329 __asm__ volatile(
330 "movq 2(%1), %%mm2 \n\t"
331 "movq 10(%1), %%mm6 \n\t"
332 "paddw (%1), %%mm2 \n\t"
333 "paddw 8(%1), %%mm6 \n\t"
334 "movq (%0), %%mm0 \n\t"
335 "movq 8(%0), %%mm4 \n\t"
336 "paddw %%mm2, %%mm0 \n\t"
337 "paddw %%mm6, %%mm4 \n\t"
338 "psraw $1, %%mm2 \n\t"
339 "psraw $1, %%mm6 \n\t"
340 "paddw %%mm0, %%mm2 \n\t"
341 "paddw %%mm4, %%mm6 \n\t"
342 "movq %%mm2, (%2) \n\t"
343 "movq %%mm6, 8(%2) \n\t"
344 :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
345 : "memory"
346 );
347 }
348 snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
349 }
350
351 {
352 snow_interleave_line_header(&i, width, b, temp);
353
354 for (; (i & 0x1E) != 0x1E; i-=2){
355 b[i+1] = temp[i>>1];
356 b[i] = b[i>>1];
357 }
358 for (i-=30; i>=0; i-=32){
359 __asm__ volatile(
360 "movq (%1), %%mm0 \n\t"
361 "movq 8(%1), %%mm2 \n\t"
362 "movq 16(%1), %%mm4 \n\t"
363 "movq 24(%1), %%mm6 \n\t"
364 "movq (%1), %%mm1 \n\t"
365 "movq 8(%1), %%mm3 \n\t"
366 "movq 16(%1), %%mm5 \n\t"
367 "movq 24(%1), %%mm7 \n\t"
368 "punpcklwd (%2), %%mm0 \n\t"
369 "punpcklwd 8(%2), %%mm2 \n\t"
370 "punpcklwd 16(%2), %%mm4 \n\t"
371 "punpcklwd 24(%2), %%mm6 \n\t"
372 "movq %%mm0, (%0) \n\t"
373 "movq %%mm2, 16(%0) \n\t"
374 "movq %%mm4, 32(%0) \n\t"
375 "movq %%mm6, 48(%0) \n\t"
376 "punpckhwd (%2), %%mm1 \n\t"
377 "punpckhwd 8(%2), %%mm3 \n\t"
378 "punpckhwd 16(%2), %%mm5 \n\t"
379 "punpckhwd 24(%2), %%mm7 \n\t"
380 "movq %%mm1, 8(%0) \n\t"
381 "movq %%mm3, 24(%0) \n\t"
382 "movq %%mm5, 40(%0) \n\t"
383 "movq %%mm7, 56(%0) \n\t"
384 :: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])
385 : "memory"
386 );
387 }
388 }
389 }
390
391 #if HAVE_7REGS
392 #define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
393 ""op" ("r",%%"REG_d"), %%"t0" \n\t"\
394 ""op" 16("r",%%"REG_d"), %%"t1" \n\t"\
395 ""op" 32("r",%%"REG_d"), %%"t2" \n\t"\
396 ""op" 48("r",%%"REG_d"), %%"t3" \n\t"
397
398 #define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
399 snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
400
401 #define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
402 snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
403
404 #define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
405 "psubw %%"s0", %%"t0" \n\t"\
406 "psubw %%"s1", %%"t1" \n\t"\
407 "psubw %%"s2", %%"t2" \n\t"\
408 "psubw %%"s3", %%"t3" \n\t"
409
410 #define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
411 "movdqa %%"s0", ("w",%%"REG_d") \n\t"\
412 "movdqa %%"s1", 16("w",%%"REG_d") \n\t"\
413 "movdqa %%"s2", 32("w",%%"REG_d") \n\t"\
414 "movdqa %%"s3", 48("w",%%"REG_d") \n\t"
415
416 #define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
417 "psraw $"n", %%"t0" \n\t"\
418 "psraw $"n", %%"t1" \n\t"\
419 "psraw $"n", %%"t2" \n\t"\
420 "psraw $"n", %%"t3" \n\t"
421
422 #define snow_vertical_compose_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
423 "paddw %%"s0", %%"t0" \n\t"\
424 "paddw %%"s1", %%"t1" \n\t"\
425 "paddw %%"s2", %%"t2" \n\t"\
426 "paddw %%"s3", %%"t3" \n\t"
427
428 #define snow_vertical_compose_r2r_pmulhw(s0,s1,s2,s3,t0,t1,t2,t3)\
429 "pmulhw %%"s0", %%"t0" \n\t"\
430 "pmulhw %%"s1", %%"t1" \n\t"\
431 "pmulhw %%"s2", %%"t2" \n\t"\
432 "pmulhw %%"s3", %%"t3" \n\t"
433
434 #define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
435 "movdqa %%"s0", %%"t0" \n\t"\
436 "movdqa %%"s1", %%"t1" \n\t"\
437 "movdqa %%"s2", %%"t2" \n\t"\
438 "movdqa %%"s3", %%"t3" \n\t"
439
440 static void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
441 x86_reg i = width;
442
443 while(i & 0x1F)
444 {
445 i--;
446 b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
447 b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
448 b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
449 b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
450 }
451 i+=i;
452
453 __asm__ volatile (
454 "jmp 2f \n\t"
455 "1: \n\t"
456 snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
457 snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
458
459
460 "pcmpeqw %%xmm0, %%xmm0 \n\t"
461 "pcmpeqw %%xmm2, %%xmm2 \n\t"
462 "paddw %%xmm2, %%xmm2 \n\t"
463 "paddw %%xmm0, %%xmm2 \n\t"
464 "psllw $13, %%xmm2 \n\t"
465 snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
466 snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
467 snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
468 snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
469 snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
470 snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
471 snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
472 snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
473
474 "pcmpeqw %%xmm7, %%xmm7 \n\t"
475 "pcmpeqw %%xmm5, %%xmm5 \n\t"
476 "psllw $15, %%xmm7 \n\t"
477 "psrlw $13, %%xmm5 \n\t"
478 "paddw %%xmm7, %%xmm5 \n\t"
479 snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
480 "movq (%2,%%"REG_d"), %%xmm1 \n\t"
481 "movq 8(%2,%%"REG_d"), %%xmm3 \n\t"
482 "paddw %%xmm7, %%xmm1 \n\t"
483 "paddw %%xmm7, %%xmm3 \n\t"
484 "pavgw %%xmm1, %%xmm0 \n\t"
485 "pavgw %%xmm3, %%xmm2 \n\t"
486 "movq 16(%2,%%"REG_d"), %%xmm1 \n\t"
487 "movq 24(%2,%%"REG_d"), %%xmm3 \n\t"
488 "paddw %%xmm7, %%xmm1 \n\t"
489 "paddw %%xmm7, %%xmm3 \n\t"
490 "pavgw %%xmm1, %%xmm4 \n\t"
491 "pavgw %%xmm3, %%xmm6 \n\t"
492 snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
493 snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
494 snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
495
496 snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
497 snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
498 snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
499 snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
500 snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
501 snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
502 snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
503 snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
504 snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
505
506 "2: \n\t"
507 "sub $64, %%"REG_d" \n\t"
508 "jge 1b \n\t"
509 :"+d"(i)
510 :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
511 }
512
513 #define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
514 ""op" ("r",%%"REG_d"), %%"t0" \n\t"\
515 ""op" 8("r",%%"REG_d"), %%"t1" \n\t"\
516 ""op" 16("r",%%"REG_d"), %%"t2" \n\t"\
517 ""op" 24("r",%%"REG_d"), %%"t3" \n\t"
518
519 #define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
520 snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
521
522 #define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
523 snow_vertical_compose_mmx_load_add("paddw",r,t0,t1,t2,t3)
524
525 #define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
526 "movq %%"s0", ("w",%%"REG_d") \n\t"\
527 "movq %%"s1", 8("w",%%"REG_d") \n\t"\
528 "movq %%"s2", 16("w",%%"REG_d") \n\t"\
529 "movq %%"s3", 24("w",%%"REG_d") \n\t"
530
531 #define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
532 "movq %%"s0", %%"t0" \n\t"\
533 "movq %%"s1", %%"t1" \n\t"\
534 "movq %%"s2", %%"t2" \n\t"\
535 "movq %%"s3", %%"t3" \n\t"
536
537
538 static void ff_snow_vertical_compose97i_mmx(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
539 x86_reg i = width;
540 while(i & 15)
541 {
542 i--;
543 b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
544 b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
545 b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
546 b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
547 }
548 i+=i;
549 __asm__ volatile(
550 "jmp 2f \n\t"
551 "1: \n\t"
552
553 snow_vertical_compose_mmx_load("%4","mm1","mm3","mm5","mm7")
554 snow_vertical_compose_mmx_add("%6","mm1","mm3","mm5","mm7")
555 "pcmpeqw %%mm0, %%mm0 \n\t"
556 "pcmpeqw %%mm2, %%mm2 \n\t"
557 "paddw %%mm2, %%mm2 \n\t"
558 "paddw %%mm0, %%mm2 \n\t"
559 "psllw $13, %%mm2 \n\t"
560 snow_vertical_compose_r2r_add("mm0","mm0","mm0","mm0","mm1","mm3","mm5","mm7")
561 snow_vertical_compose_r2r_pmulhw("mm2","mm2","mm2","mm2","mm1","mm3","mm5","mm7")
562 snow_vertical_compose_mmx_add("%5","mm1","mm3","mm5","mm7")
563 snow_vertical_compose_mmx_store("%5","mm1","mm3","mm5","mm7")
564 snow_vertical_compose_mmx_load("%4","mm0","mm2","mm4","mm6")
565 snow_vertical_compose_mmx_add("%3","mm1","mm3","mm5","mm7")
566 snow_vertical_compose_r2r_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
567 snow_vertical_compose_mmx_store("%4","mm0","mm2","mm4","mm6")
568 "pcmpeqw %%mm7, %%mm7 \n\t"
569 "pcmpeqw %%mm5, %%mm5 \n\t"
570 "psllw $15, %%mm7 \n\t"
571 "psrlw $13, %%mm5 \n\t"
572 "paddw %%mm7, %%mm5 \n\t"
573 snow_vertical_compose_r2r_add("mm5","mm5","mm5","mm5","mm0","mm2","mm4","mm6")
574 "movq (%2,%%"REG_d"), %%mm1 \n\t"
575 "movq 8(%2,%%"REG_d"), %%mm3 \n\t"
576 "paddw %%mm7, %%mm1 \n\t"
577 "paddw %%mm7, %%mm3 \n\t"
578 "pavgw %%mm1, %%mm0 \n\t"
579 "pavgw %%mm3, %%mm2 \n\t"
580 "movq 16(%2,%%"REG_d"), %%mm1 \n\t"
581 "movq 24(%2,%%"REG_d"), %%mm3 \n\t"
582 "paddw %%mm7, %%mm1 \n\t"
583 "paddw %%mm7, %%mm3 \n\t"
584 "pavgw %%mm1, %%mm4 \n\t"
585 "pavgw %%mm3, %%mm6 \n\t"
586 snow_vertical_compose_r2r_sub("mm7","mm7","mm7","mm7","mm0","mm2","mm4","mm6")
587 snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
588 snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
589
590 snow_vertical_compose_sra("2","mm0","mm2","mm4","mm6")
591 snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
592 snow_vertical_compose_mmx_store("%3","mm0","mm2","mm4","mm6")
593 snow_vertical_compose_mmx_add("%1","mm0","mm2","mm4","mm6")
594 snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
595 snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
596 snow_vertical_compose_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
597 snow_vertical_compose_mmx_add("%2","mm0","mm2","mm4","mm6")
598 snow_vertical_compose_mmx_store("%2","mm0","mm2","mm4","mm6")
599
600 "2: \n\t"
601 "sub $32, %%"REG_d" \n\t"
602 "jge 1b \n\t"
603 :"+d"(i)
604 :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
605 }
606 #endif //HAVE_7REGS
607
608 #define snow_inner_add_yblock_sse2_header \
609 IDWTELEM * * dst_array = sb->line + src_y;\
610 x86_reg tmp;\
611 __asm__ volatile(\
612 "mov %7, %%"REG_c" \n\t"\
613 "mov %6, %2 \n\t"\
614 "mov %4, %%"REG_S" \n\t"\
615 "pxor %%xmm7, %%xmm7 \n\t" /* 0 */\
616 "pcmpeqd %%xmm3, %%xmm3 \n\t"\
617 "psllw $15, %%xmm3 \n\t"\
618 "psrlw $12, %%xmm3 \n\t" /* FRAC_BITS >> 1 */\
619 "1: \n\t"\
620 "mov %1, %%"REG_D" \n\t"\
621 "mov (%%"REG_D"), %%"REG_D" \n\t"\
622 "add %3, %%"REG_D" \n\t"
623
624 #define snow_inner_add_yblock_sse2_start_8(out_reg1, out_reg2, ptr_offset, s_offset)\
625 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
626 "movq (%%"REG_d"), %%"out_reg1" \n\t"\
627 "movq (%%"REG_d", %%"REG_c"), %%"out_reg2" \n\t"\
628 "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
629 "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
630 "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
631 "movq "s_offset"+16(%%"REG_S"), %%xmm4 \n\t"\
632 "punpcklbw %%xmm7, %%xmm0 \n\t"\
633 "punpcklbw %%xmm7, %%xmm4 \n\t"\
634 "pmullw %%xmm0, %%"out_reg1" \n\t"\
635 "pmullw %%xmm4, %%"out_reg2" \n\t"
636
637 #define snow_inner_add_yblock_sse2_start_16(out_reg1, out_reg2, ptr_offset, s_offset)\
638 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
639 "movq (%%"REG_d"), %%"out_reg1" \n\t"\
640 "movq 8(%%"REG_d"), %%"out_reg2" \n\t"\
641 "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
642 "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
643 "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
644 "movq "s_offset"+8(%%"REG_S"), %%xmm4 \n\t"\
645 "punpcklbw %%xmm7, %%xmm0 \n\t"\
646 "punpcklbw %%xmm7, %%xmm4 \n\t"\
647 "pmullw %%xmm0, %%"out_reg1" \n\t"\
648 "pmullw %%xmm4, %%"out_reg2" \n\t"
649
650 #define snow_inner_add_yblock_sse2_accum_8(ptr_offset, s_offset) \
651 snow_inner_add_yblock_sse2_start_8("xmm2", "xmm6", ptr_offset, s_offset)\
652 "paddusw %%xmm2, %%xmm1 \n\t"\
653 "paddusw %%xmm6, %%xmm5 \n\t"
654
655 #define snow_inner_add_yblock_sse2_accum_16(ptr_offset, s_offset) \
656 snow_inner_add_yblock_sse2_start_16("xmm2", "xmm6", ptr_offset, s_offset)\
657 "paddusw %%xmm2, %%xmm1 \n\t"\
658 "paddusw %%xmm6, %%xmm5 \n\t"
659
660 #define snow_inner_add_yblock_sse2_end_common1\
661 "add $32, %%"REG_S" \n\t"\
662 "add %%"REG_c", %0 \n\t"\
663 "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
664 "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
665 "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
666 "add %%"REG_c", (%%"REG_a") \n\t"
667
668 #define snow_inner_add_yblock_sse2_end_common2\
669 "jnz 1b \n\t"\
670 :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
671 :\
672 "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
673 "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
674
675 #define snow_inner_add_yblock_sse2_end_8\
676 "sal $1, %%"REG_c" \n\t"\
677 "add $"PTR_SIZE"*2, %1 \n\t"\
678 snow_inner_add_yblock_sse2_end_common1\
679 "sar $1, %%"REG_c" \n\t"\
680 "sub $2, %2 \n\t"\
681 snow_inner_add_yblock_sse2_end_common2
682
683 #define snow_inner_add_yblock_sse2_end_16\
684 "add $"PTR_SIZE"*1, %1 \n\t"\
685 snow_inner_add_yblock_sse2_end_common1\
686 "dec %2 \n\t"\
687 snow_inner_add_yblock_sse2_end_common2
688
689 static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
690 int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
691 snow_inner_add_yblock_sse2_header
692 snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")
693 snow_inner_add_yblock_sse2_accum_8("2", "8")
694 snow_inner_add_yblock_sse2_accum_8("1", "128")
695 snow_inner_add_yblock_sse2_accum_8("0", "136")
696
697 "mov %0, %%"REG_d" \n\t"
698 "movdqa (%%"REG_D"), %%xmm0 \n\t"
699 "movdqa %%xmm1, %%xmm2 \n\t"
700
701 "punpckhwd %%xmm7, %%xmm1 \n\t"
702 "punpcklwd %%xmm7, %%xmm2 \n\t"
703 "paddd %%xmm2, %%xmm0 \n\t"
704 "movdqa 16(%%"REG_D"), %%xmm2 \n\t"
705 "paddd %%xmm1, %%xmm2 \n\t"
706 "paddd %%xmm3, %%xmm0 \n\t"
707 "paddd %%xmm3, %%xmm2 \n\t"
708
709 "mov %1, %%"REG_D" \n\t"
710 "mov "PTR_SIZE"(%%"REG_D"), %%"REG_D";\n\t"
711 "add %3, %%"REG_D" \n\t"
712
713 "movdqa (%%"REG_D"), %%xmm4 \n\t"
714 "movdqa %%xmm5, %%xmm6 \n\t"
715 "punpckhwd %%xmm7, %%xmm5 \n\t"
716 "punpcklwd %%xmm7, %%xmm6 \n\t"
717 "paddd %%xmm6, %%xmm4 \n\t"
718 "movdqa 16(%%"REG_D"), %%xmm6 \n\t"
719 "paddd %%xmm5, %%xmm6 \n\t"
720 "paddd %%xmm3, %%xmm4 \n\t"
721 "paddd %%xmm3, %%xmm6 \n\t"
722
723 "psrad $8, %%xmm0 \n\t" /* FRAC_BITS. */
724 "psrad $8, %%xmm2 \n\t" /* FRAC_BITS. */
725 "packssdw %%xmm2, %%xmm0 \n\t"
726 "packuswb %%xmm7, %%xmm0 \n\t"
727 "movq %%xmm0, (%%"REG_d") \n\t"
728
729 "psrad $8, %%xmm4 \n\t" /* FRAC_BITS. */
730 "psrad $8, %%xmm6 \n\t" /* FRAC_BITS. */
731 "packssdw %%xmm6, %%xmm4 \n\t"
732 "packuswb %%xmm7, %%xmm4 \n\t"
733 "movq %%xmm4, (%%"REG_d",%%"REG_c");\n\t"
734 snow_inner_add_yblock_sse2_end_8
735 }
736
737 static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
738 int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
739 snow_inner_add_yblock_sse2_header
740 snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")
741 snow_inner_add_yblock_sse2_accum_16("2", "16")
742 snow_inner_add_yblock_sse2_accum_16("1", "512")
743 snow_inner_add_yblock_sse2_accum_16("0", "528")
744
745 "mov %0, %%"REG_d" \n\t"
746 "psrlw $4, %%xmm1 \n\t"
747 "psrlw $4, %%xmm5 \n\t"
748 "paddw (%%"REG_D"), %%xmm1 \n\t"
749 "paddw 16(%%"REG_D"), %%xmm5 \n\t"
750 "paddw %%xmm3, %%xmm1 \n\t"
751 "paddw %%xmm3, %%xmm5 \n\t"
752 "psraw $4, %%xmm1 \n\t" /* FRAC_BITS. */
753 "psraw $4, %%xmm5 \n\t" /* FRAC_BITS. */
754 "packuswb %%xmm5, %%xmm1 \n\t"
755
756 "movdqu %%xmm1, (%%"REG_d") \n\t"
757
758 snow_inner_add_yblock_sse2_end_16
759 }
760
761 #define snow_inner_add_yblock_mmx_header \
762 IDWTELEM * * dst_array = sb->line + src_y;\
763 x86_reg tmp;\
764 __asm__ volatile(\
765 "mov %7, %%"REG_c" \n\t"\
766 "mov %6, %2 \n\t"\
767 "mov %4, %%"REG_S" \n\t"\
768 "pxor %%mm7, %%mm7 \n\t" /* 0 */\
769 "pcmpeqd %%mm3, %%mm3 \n\t"\
770 "psllw $15, %%mm3 \n\t"\
771 "psrlw $12, %%mm3 \n\t" /* FRAC_BITS >> 1 */\
772 "1: \n\t"\
773 "mov %1, %%"REG_D" \n\t"\
774 "mov (%%"REG_D"), %%"REG_D" \n\t"\
775 "add %3, %%"REG_D" \n\t"
776
777 #define snow_inner_add_yblock_mmx_start(out_reg1, out_reg2, ptr_offset, s_offset, d_offset)\
778 "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
779 "movd "d_offset"(%%"REG_d"), %%"out_reg1" \n\t"\
780 "movd "d_offset"+4(%%"REG_d"), %%"out_reg2" \n\t"\
781 "punpcklbw %%mm7, %%"out_reg1" \n\t"\
782 "punpcklbw %%mm7, %%"out_reg2" \n\t"\
783 "movd "s_offset"(%%"REG_S"), %%mm0 \n\t"\
784 "movd "s_offset"+4(%%"REG_S"), %%mm4 \n\t"\
785 "punpcklbw %%mm7, %%mm0 \n\t"\
786 "punpcklbw %%mm7, %%mm4 \n\t"\
787 "pmullw %%mm0, %%"out_reg1" \n\t"\
788 "pmullw %%mm4, %%"out_reg2" \n\t"
789
790 #define snow_inner_add_yblock_mmx_accum(ptr_offset, s_offset, d_offset) \
791 snow_inner_add_yblock_mmx_start("mm2", "mm6", ptr_offset, s_offset, d_offset)\
792 "paddusw %%mm2, %%mm1 \n\t"\
793 "paddusw %%mm6, %%mm5 \n\t"
794
795 #define snow_inner_add_yblock_mmx_mix(read_offset, write_offset)\
796 "mov %0, %%"REG_d" \n\t"\
797 "psrlw $4, %%mm1 \n\t"\
798 "psrlw $4, %%mm5 \n\t"\
799 "paddw "read_offset"(%%"REG_D"), %%mm1 \n\t"\
800 "paddw "read_offset"+8(%%"REG_D"), %%mm5 \n\t"\
801 "paddw %%mm3, %%mm1 \n\t"\
802 "paddw %%mm3, %%mm5 \n\t"\
803 "psraw $4, %%mm1 \n\t"\
804 "psraw $4, %%mm5 \n\t"\
805 "packuswb %%mm5, %%mm1 \n\t"\
806 "movq %%mm1, "write_offset"(%%"REG_d") \n\t"
807
808 #define snow_inner_add_yblock_mmx_end(s_step)\
809 "add $"s_step", %%"REG_S" \n\t"\
810 "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
811 "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
812 "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
813 "add %%"REG_c", (%%"REG_a") \n\t"\
814 "add $"PTR_SIZE"*1, %1 \n\t"\
815 "add %%"REG_c", %0 \n\t"\
816 "dec %2 \n\t"\
817 "jnz 1b \n\t"\
818 :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
819 :\
820 "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
821 "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
822
823 static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
824 int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
825 snow_inner_add_yblock_mmx_header
826 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
827 snow_inner_add_yblock_mmx_accum("2", "8", "0")
828 snow_inner_add_yblock_mmx_accum("1", "128", "0")
829 snow_inner_add_yblock_mmx_accum("0", "136", "0")
830 snow_inner_add_yblock_mmx_mix("0", "0")
831 snow_inner_add_yblock_mmx_end("16")
832 }
833
834 static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
835 int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
836 snow_inner_add_yblock_mmx_header
837 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
838 snow_inner_add_yblock_mmx_accum("2", "16", "0")
839 snow_inner_add_yblock_mmx_accum("1", "512", "0")
840 snow_inner_add_yblock_mmx_accum("0", "528", "0")
841 snow_inner_add_yblock_mmx_mix("0", "0")
842
843 snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "8", "8")
844 snow_inner_add_yblock_mmx_accum("2", "24", "8")
845 snow_inner_add_yblock_mmx_accum("1", "520", "8")
846 snow_inner_add_yblock_mmx_accum("0", "536", "8")
847 snow_inner_add_yblock_mmx_mix("16", "8")
848 snow_inner_add_yblock_mmx_end("32")
849 }
850
851 static void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
852 int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
853
854 if (b_w == 16)
855 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);
856 else if (b_w == 8 && obmc_stride == 16) {
857 if (!(b_h & 1))
858 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);
859 else
860 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);
861 } else
862 ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
863 }
864
865 static void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
866 int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
867 if (b_w == 16)
868 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);
869 else if (b_w == 8 && obmc_stride == 16)
870 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);
871 else
872 ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
873 }
874
875 void ff_dwt_init_x86(DWTContext *c)
876 {
877 mm_flags = mm_support();
878
879 if (mm_flags & FF_MM_MMX) {
880 if(mm_flags & FF_MM_SSE2 & 0){
881 c->horizontal_compose97i = ff_snow_horizontal_compose97i_sse2;
882 #if HAVE_7REGS
883 c->vertical_compose97i = ff_snow_vertical_compose97i_sse2;
884 #endif
885 c->inner_add_yblock = ff_snow_inner_add_yblock_sse2;
886 }
887 else{
888 if(mm_flags & FF_MM_MMX2){
889 c->horizontal_compose97i = ff_snow_horizontal_compose97i_mmx;
890 #if HAVE_7REGS
891 c->vertical_compose97i = ff_snow_vertical_compose97i_mmx;
892 #endif
893 }
894 c->inner_add_yblock = ff_snow_inner_add_yblock_mmx;
895 }
896 }
897 }