Statistics
| Branch: | Revision:

ffmpeg / libavcodec / x86 / motion_est_mmx.c @ 2912e87a

History | View | Annotate | Download (16 KB)

1
/*
2
 * MMX optimized motion estimation
3
 * Copyright (c) 2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer
5
 *
6
 * mostly by Michael Niedermayer <michaelni@gmx.at>
7
 *
8
 * This file is part of Libav.
9
 *
10
 * Libav is free software; you can redistribute it and/or
11
 * modify it under the terms of the GNU Lesser General Public
12
 * License as published by the Free Software Foundation; either
13
 * version 2.1 of the License, or (at your option) any later version.
14
 *
15
 * Libav is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with Libav; if not, write to the Free Software
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24

    
25
#include "libavutil/x86_cpu.h"
26
#include "libavcodec/dsputil.h"
27
#include "dsputil_mmx.h"
28

    
29
DECLARE_ASM_CONST(8, uint64_t, round_tab)[3]={
30
0x0000000000000000ULL,
31
0x0001000100010001ULL,
32
0x0002000200020002ULL,
33
};
34

    
35
DECLARE_ASM_CONST(8, uint64_t, bone)= 0x0101010101010101LL;
36

    
37
static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
38
{
39
    x86_reg len= -(stride*h);
40
    __asm__ volatile(
41
        ".p2align 4                     \n\t"
42
        "1:                             \n\t"
43
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
44
        "movq (%2, %%"REG_a"), %%mm2    \n\t"
45
        "movq (%2, %%"REG_a"), %%mm4    \n\t"
46
        "add %3, %%"REG_a"              \n\t"
47
        "psubusb %%mm0, %%mm2           \n\t"
48
        "psubusb %%mm4, %%mm0           \n\t"
49
        "movq (%1, %%"REG_a"), %%mm1    \n\t"
50
        "movq (%2, %%"REG_a"), %%mm3    \n\t"
51
        "movq (%2, %%"REG_a"), %%mm5    \n\t"
52
        "psubusb %%mm1, %%mm3           \n\t"
53
        "psubusb %%mm5, %%mm1           \n\t"
54
        "por %%mm2, %%mm0               \n\t"
55
        "por %%mm1, %%mm3               \n\t"
56
        "movq %%mm0, %%mm1              \n\t"
57
        "movq %%mm3, %%mm2              \n\t"
58
        "punpcklbw %%mm7, %%mm0         \n\t"
59
        "punpckhbw %%mm7, %%mm1         \n\t"
60
        "punpcklbw %%mm7, %%mm3         \n\t"
61
        "punpckhbw %%mm7, %%mm2         \n\t"
62
        "paddw %%mm1, %%mm0             \n\t"
63
        "paddw %%mm3, %%mm2             \n\t"
64
        "paddw %%mm2, %%mm0             \n\t"
65
        "paddw %%mm0, %%mm6             \n\t"
66
        "add %3, %%"REG_a"              \n\t"
67
        " js 1b                         \n\t"
68
        : "+a" (len)
69
        : "r" (blk1 - len), "r" (blk2 - len), "r" ((x86_reg)stride)
70
    );
71
}
72

    
73
static inline void sad8_1_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
74
{
75
    __asm__ volatile(
76
        ".p2align 4                     \n\t"
77
        "1:                             \n\t"
78
        "movq (%1), %%mm0               \n\t"
79
        "movq (%1, %3), %%mm1           \n\t"
80
        "psadbw (%2), %%mm0             \n\t"
81
        "psadbw (%2, %3), %%mm1         \n\t"
82
        "paddw %%mm0, %%mm6             \n\t"
83
        "paddw %%mm1, %%mm6             \n\t"
84
        "lea (%1,%3,2), %1              \n\t"
85
        "lea (%2,%3,2), %2              \n\t"
86
        "sub $2, %0                     \n\t"
87
        " jg 1b                         \n\t"
88
        : "+r" (h), "+r" (blk1), "+r" (blk2)
89
        : "r" ((x86_reg)stride)
90
    );
91
}
92

    
93
static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
94
{
95
    int ret;
96
    __asm__ volatile(
97
        "pxor %%xmm2, %%xmm2            \n\t"
98
        ".p2align 4                     \n\t"
99
        "1:                             \n\t"
100
        "movdqu (%1), %%xmm0            \n\t"
101
        "movdqu (%1, %4), %%xmm1        \n\t"
102
        "psadbw (%2), %%xmm0            \n\t"
103
        "psadbw (%2, %4), %%xmm1        \n\t"
104
        "paddw %%xmm0, %%xmm2           \n\t"
105
        "paddw %%xmm1, %%xmm2           \n\t"
106
        "lea (%1,%4,2), %1              \n\t"
107
        "lea (%2,%4,2), %2              \n\t"
108
        "sub $2, %0                     \n\t"
109
        " jg 1b                         \n\t"
110
        "movhlps %%xmm2, %%xmm0         \n\t"
111
        "paddw   %%xmm0, %%xmm2         \n\t"
112
        "movd    %%xmm2, %3             \n\t"
113
        : "+r" (h), "+r" (blk1), "+r" (blk2), "=r"(ret)
114
        : "r" ((x86_reg)stride)
115
    );
116
    return ret;
117
}
118

    
119
static inline void sad8_x2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
120
{
121
    __asm__ volatile(
122
        ".p2align 4                     \n\t"
123
        "1:                             \n\t"
124
        "movq (%1), %%mm0               \n\t"
125
        "movq (%1, %3), %%mm1           \n\t"
126
        "pavgb 1(%1), %%mm0             \n\t"
127
        "pavgb 1(%1, %3), %%mm1         \n\t"
128
        "psadbw (%2), %%mm0             \n\t"
129
        "psadbw (%2, %3), %%mm1         \n\t"
130
        "paddw %%mm0, %%mm6             \n\t"
131
        "paddw %%mm1, %%mm6             \n\t"
132
        "lea (%1,%3,2), %1              \n\t"
133
        "lea (%2,%3,2), %2              \n\t"
134
        "sub $2, %0                     \n\t"
135
        " jg 1b                         \n\t"
136
        : "+r" (h), "+r" (blk1), "+r" (blk2)
137
        : "r" ((x86_reg)stride)
138
    );
139
}
140

    
141
static inline void sad8_y2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
142
{
143
    __asm__ volatile(
144
        "movq (%1), %%mm0               \n\t"
145
        "add %3, %1                     \n\t"
146
        ".p2align 4                     \n\t"
147
        "1:                             \n\t"
148
        "movq (%1), %%mm1               \n\t"
149
        "movq (%1, %3), %%mm2           \n\t"
150
        "pavgb %%mm1, %%mm0             \n\t"
151
        "pavgb %%mm2, %%mm1             \n\t"
152
        "psadbw (%2), %%mm0             \n\t"
153
        "psadbw (%2, %3), %%mm1         \n\t"
154
        "paddw %%mm0, %%mm6             \n\t"
155
        "paddw %%mm1, %%mm6             \n\t"
156
        "movq %%mm2, %%mm0              \n\t"
157
        "lea (%1,%3,2), %1              \n\t"
158
        "lea (%2,%3,2), %2              \n\t"
159
        "sub $2, %0                     \n\t"
160
        " jg 1b                         \n\t"
161
        : "+r" (h), "+r" (blk1), "+r" (blk2)
162
        : "r" ((x86_reg)stride)
163
    );
164
}
165

    
166
static inline void sad8_4_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
167
{
168
    __asm__ volatile(
169
        "movq "MANGLE(bone)", %%mm5     \n\t"
170
        "movq (%1), %%mm0               \n\t"
171
        "pavgb 1(%1), %%mm0             \n\t"
172
        "add %3, %1                     \n\t"
173
        ".p2align 4                     \n\t"
174
        "1:                             \n\t"
175
        "movq (%1), %%mm1               \n\t"
176
        "movq (%1,%3), %%mm2            \n\t"
177
        "pavgb 1(%1), %%mm1             \n\t"
178
        "pavgb 1(%1,%3), %%mm2          \n\t"
179
        "psubusb %%mm5, %%mm1           \n\t"
180
        "pavgb %%mm1, %%mm0             \n\t"
181
        "pavgb %%mm2, %%mm1             \n\t"
182
        "psadbw (%2), %%mm0             \n\t"
183
        "psadbw (%2,%3), %%mm1          \n\t"
184
        "paddw %%mm0, %%mm6             \n\t"
185
        "paddw %%mm1, %%mm6             \n\t"
186
        "movq %%mm2, %%mm0              \n\t"
187
        "lea (%1,%3,2), %1              \n\t"
188
        "lea (%2,%3,2), %2              \n\t"
189
        "sub $2, %0                     \n\t"
190
        " jg 1b                         \n\t"
191
        : "+r" (h), "+r" (blk1), "+r" (blk2)
192
        : "r" ((x86_reg)stride)
193
    );
194
}
195

    
196
static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2, int stride, int h)
197
{
198
    x86_reg len= -(stride*h);
199
    __asm__ volatile(
200
        ".p2align 4                     \n\t"
201
        "1:                             \n\t"
202
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
203
        "movq (%2, %%"REG_a"), %%mm1    \n\t"
204
        "movq (%1, %%"REG_a"), %%mm2    \n\t"
205
        "movq (%2, %%"REG_a"), %%mm3    \n\t"
206
        "punpcklbw %%mm7, %%mm0         \n\t"
207
        "punpcklbw %%mm7, %%mm1         \n\t"
208
        "punpckhbw %%mm7, %%mm2         \n\t"
209
        "punpckhbw %%mm7, %%mm3         \n\t"
210
        "paddw %%mm0, %%mm1             \n\t"
211
        "paddw %%mm2, %%mm3             \n\t"
212
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
213
        "movq (%3, %%"REG_a"), %%mm2    \n\t"
214
        "paddw %%mm5, %%mm1             \n\t"
215
        "paddw %%mm5, %%mm3             \n\t"
216
        "psrlw $1, %%mm1                \n\t"
217
        "psrlw $1, %%mm3                \n\t"
218
        "packuswb %%mm3, %%mm1          \n\t"
219
        "psubusb %%mm1, %%mm4           \n\t"
220
        "psubusb %%mm2, %%mm1           \n\t"
221
        "por %%mm4, %%mm1               \n\t"
222
        "movq %%mm1, %%mm0              \n\t"
223
        "punpcklbw %%mm7, %%mm0         \n\t"
224
        "punpckhbw %%mm7, %%mm1         \n\t"
225
        "paddw %%mm1, %%mm0             \n\t"
226
        "paddw %%mm0, %%mm6             \n\t"
227
        "add %4, %%"REG_a"              \n\t"
228
        " js 1b                         \n\t"
229
        : "+a" (len)
230
        : "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" ((x86_reg)stride)
231
    );
232
}
233

    
234
static inline void sad8_4_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
235
{
236
    x86_reg len= -(stride*h);
237
    __asm__ volatile(
238
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
239
        "movq 1(%1, %%"REG_a"), %%mm2   \n\t"
240
        "movq %%mm0, %%mm1              \n\t"
241
        "movq %%mm2, %%mm3              \n\t"
242
        "punpcklbw %%mm7, %%mm0         \n\t"
243
        "punpckhbw %%mm7, %%mm1         \n\t"
244
        "punpcklbw %%mm7, %%mm2         \n\t"
245
        "punpckhbw %%mm7, %%mm3         \n\t"
246
        "paddw %%mm2, %%mm0             \n\t"
247
        "paddw %%mm3, %%mm1             \n\t"
248
        ".p2align 4                     \n\t"
249
        "1:                             \n\t"
250
        "movq (%2, %%"REG_a"), %%mm2    \n\t"
251
        "movq 1(%2, %%"REG_a"), %%mm4   \n\t"
252
        "movq %%mm2, %%mm3              \n\t"
253
        "movq %%mm4, %%mm5              \n\t"
254
        "punpcklbw %%mm7, %%mm2         \n\t"
255
        "punpckhbw %%mm7, %%mm3         \n\t"
256
        "punpcklbw %%mm7, %%mm4         \n\t"
257
        "punpckhbw %%mm7, %%mm5         \n\t"
258
        "paddw %%mm4, %%mm2             \n\t"
259
        "paddw %%mm5, %%mm3             \n\t"
260
        "movq 16+"MANGLE(round_tab)", %%mm5 \n\t"
261
        "paddw %%mm2, %%mm0             \n\t"
262
        "paddw %%mm3, %%mm1             \n\t"
263
        "paddw %%mm5, %%mm0             \n\t"
264
        "paddw %%mm5, %%mm1             \n\t"
265
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
266
        "movq (%3, %%"REG_a"), %%mm5    \n\t"
267
        "psrlw $2, %%mm0                \n\t"
268
        "psrlw $2, %%mm1                \n\t"
269
        "packuswb %%mm1, %%mm0          \n\t"
270
        "psubusb %%mm0, %%mm4           \n\t"
271
        "psubusb %%mm5, %%mm0           \n\t"
272
        "por %%mm4, %%mm0               \n\t"
273
        "movq %%mm0, %%mm4              \n\t"
274
        "punpcklbw %%mm7, %%mm0         \n\t"
275
        "punpckhbw %%mm7, %%mm4         \n\t"
276
        "paddw %%mm0, %%mm6             \n\t"
277
        "paddw %%mm4, %%mm6             \n\t"
278
        "movq  %%mm2, %%mm0             \n\t"
279
        "movq  %%mm3, %%mm1             \n\t"
280
        "add %4, %%"REG_a"              \n\t"
281
        " js 1b                         \n\t"
282
        : "+a" (len)
283
        : "r" (blk1 - len), "r" (blk1 -len + stride), "r" (blk2 - len), "r" ((x86_reg)stride)
284
    );
285
}
286

    
287
static inline int sum_mmx(void)
288
{
289
    int ret;
290
    __asm__ volatile(
291
        "movq %%mm6, %%mm0              \n\t"
292
        "psrlq $32, %%mm6               \n\t"
293
        "paddw %%mm0, %%mm6             \n\t"
294
        "movq %%mm6, %%mm0              \n\t"
295
        "psrlq $16, %%mm6               \n\t"
296
        "paddw %%mm0, %%mm6             \n\t"
297
        "movd %%mm6, %0                 \n\t"
298
        : "=r" (ret)
299
    );
300
    return ret&0xFFFF;
301
}
302

    
303
static inline int sum_mmx2(void)
304
{
305
    int ret;
306
    __asm__ volatile(
307
        "movd %%mm6, %0                 \n\t"
308
        : "=r" (ret)
309
    );
310
    return ret;
311
}
312

    
313
static inline void sad8_x2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
314
{
315
    sad8_2_mmx(blk1, blk1+1, blk2, stride, h);
316
}
317
static inline void sad8_y2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
318
{
319
    sad8_2_mmx(blk1, blk1+stride, blk2, stride, h);
320
}
321

    
322

    
323
#define PIX_SAD(suf)\
324
static int sad8_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
325
{\
326
    assert(h==8);\
327
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
328
                 "pxor %%mm6, %%mm6     \n\t":);\
329
\
330
    sad8_1_ ## suf(blk1, blk2, stride, 8);\
331
\
332
    return sum_ ## suf();\
333
}\
334
static int sad8_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
335
{\
336
    assert(h==8);\
337
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
338
                 "pxor %%mm6, %%mm6     \n\t"\
339
                 "movq %0, %%mm5        \n\t"\
340
                 :: "m"(round_tab[1]) \
341
                 );\
342
\
343
    sad8_x2a_ ## suf(blk1, blk2, stride, 8);\
344
\
345
    return sum_ ## suf();\
346
}\
347
\
348
static int sad8_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
349
{\
350
    assert(h==8);\
351
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
352
                 "pxor %%mm6, %%mm6     \n\t"\
353
                 "movq %0, %%mm5        \n\t"\
354
                 :: "m"(round_tab[1]) \
355
                 );\
356
\
357
    sad8_y2a_ ## suf(blk1, blk2, stride, 8);\
358
\
359
    return sum_ ## suf();\
360
}\
361
\
362
static int sad8_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
363
{\
364
    assert(h==8);\
365
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
366
                 "pxor %%mm6, %%mm6     \n\t"\
367
                 ::);\
368
\
369
    sad8_4_ ## suf(blk1, blk2, stride, 8);\
370
\
371
    return sum_ ## suf();\
372
}\
373
\
374
static int sad16_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
375
{\
376
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
377
                 "pxor %%mm6, %%mm6     \n\t":);\
378
\
379
    sad8_1_ ## suf(blk1  , blk2  , stride, h);\
380
    sad8_1_ ## suf(blk1+8, blk2+8, stride, h);\
381
\
382
    return sum_ ## suf();\
383
}\
384
static int sad16_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
385
{\
386
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
387
                 "pxor %%mm6, %%mm6     \n\t"\
388
                 "movq %0, %%mm5        \n\t"\
389
                 :: "m"(round_tab[1]) \
390
                 );\
391
\
392
    sad8_x2a_ ## suf(blk1  , blk2  , stride, h);\
393
    sad8_x2a_ ## suf(blk1+8, blk2+8, stride, h);\
394
\
395
    return sum_ ## suf();\
396
}\
397
static int sad16_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
398
{\
399
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
400
                 "pxor %%mm6, %%mm6     \n\t"\
401
                 "movq %0, %%mm5        \n\t"\
402
                 :: "m"(round_tab[1]) \
403
                 );\
404
\
405
    sad8_y2a_ ## suf(blk1  , blk2  , stride, h);\
406
    sad8_y2a_ ## suf(blk1+8, blk2+8, stride, h);\
407
\
408
    return sum_ ## suf();\
409
}\
410
static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
411
{\
412
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
413
                 "pxor %%mm6, %%mm6     \n\t"\
414
                 ::);\
415
\
416
    sad8_4_ ## suf(blk1  , blk2  , stride, h);\
417
    sad8_4_ ## suf(blk1+8, blk2+8, stride, h);\
418
\
419
    return sum_ ## suf();\
420
}\
421

    
422
PIX_SAD(mmx)
423
PIX_SAD(mmx2)
424

    
425
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
426
{
427
    int mm_flags = av_get_cpu_flags();
428

    
429
    if (mm_flags & AV_CPU_FLAG_MMX) {
430
        c->pix_abs[0][0] = sad16_mmx;
431
        c->pix_abs[0][1] = sad16_x2_mmx;
432
        c->pix_abs[0][2] = sad16_y2_mmx;
433
        c->pix_abs[0][3] = sad16_xy2_mmx;
434
        c->pix_abs[1][0] = sad8_mmx;
435
        c->pix_abs[1][1] = sad8_x2_mmx;
436
        c->pix_abs[1][2] = sad8_y2_mmx;
437
        c->pix_abs[1][3] = sad8_xy2_mmx;
438

    
439
        c->sad[0]= sad16_mmx;
440
        c->sad[1]= sad8_mmx;
441
    }
442
    if (mm_flags & AV_CPU_FLAG_MMX2) {
443
        c->pix_abs[0][0] = sad16_mmx2;
444
        c->pix_abs[1][0] = sad8_mmx2;
445

    
446
        c->sad[0]= sad16_mmx2;
447
        c->sad[1]= sad8_mmx2;
448

    
449
        if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
450
            c->pix_abs[0][1] = sad16_x2_mmx2;
451
            c->pix_abs[0][2] = sad16_y2_mmx2;
452
            c->pix_abs[0][3] = sad16_xy2_mmx2;
453
            c->pix_abs[1][1] = sad8_x2_mmx2;
454
            c->pix_abs[1][2] = sad8_y2_mmx2;
455
            c->pix_abs[1][3] = sad8_xy2_mmx2;
456
        }
457
    }
458
    if ((mm_flags & AV_CPU_FLAG_SSE2) && !(mm_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) {
459
        c->sad[0]= sad16_sse2;
460
    }
461
}