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ffmpeg / libavcodec / i386 / motion_est_mmx.c @ 766324fc

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1
/*
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 * MMX optimized motion estimation
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 * Copyright (c) 2001 Fabrice Bellard.
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 * Copyright (c) 2002-2004 Michael Niedermayer
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 *
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 * mostly by Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "dsputil.h"
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#include "x86_cpu.h"
26

    
27
DECLARE_ASM_CONST(8, uint64_t, round_tab[3])={
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0x0000000000000000ULL,
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0x0001000100010001ULL,
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0x0002000200020002ULL,
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};
32

    
33
DECLARE_ASM_CONST(8, uint64_t, bone)= 0x0101010101010101LL;
34

    
35
static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
36
{
37
    long len= -(stride*h);
38
    asm volatile(
39
        ASMALIGN(4)
40
        "1:                             \n\t"
41
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
42
        "movq (%2, %%"REG_a"), %%mm2    \n\t"
43
        "movq (%2, %%"REG_a"), %%mm4    \n\t"
44
        "add %3, %%"REG_a"              \n\t"
45
        "psubusb %%mm0, %%mm2           \n\t"
46
        "psubusb %%mm4, %%mm0           \n\t"
47
        "movq (%1, %%"REG_a"), %%mm1    \n\t"
48
        "movq (%2, %%"REG_a"), %%mm3    \n\t"
49
        "movq (%2, %%"REG_a"), %%mm5    \n\t"
50
        "psubusb %%mm1, %%mm3           \n\t"
51
        "psubusb %%mm5, %%mm1           \n\t"
52
        "por %%mm2, %%mm0               \n\t"
53
        "por %%mm1, %%mm3               \n\t"
54
        "movq %%mm0, %%mm1              \n\t"
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        "movq %%mm3, %%mm2              \n\t"
56
        "punpcklbw %%mm7, %%mm0         \n\t"
57
        "punpckhbw %%mm7, %%mm1         \n\t"
58
        "punpcklbw %%mm7, %%mm3         \n\t"
59
        "punpckhbw %%mm7, %%mm2         \n\t"
60
        "paddw %%mm1, %%mm0             \n\t"
61
        "paddw %%mm3, %%mm2             \n\t"
62
        "paddw %%mm2, %%mm0             \n\t"
63
        "paddw %%mm0, %%mm6             \n\t"
64
        "add %3, %%"REG_a"              \n\t"
65
        " js 1b                         \n\t"
66
        : "+a" (len)
67
        : "r" (blk1 - len), "r" (blk2 - len), "r" ((long)stride)
68
    );
69
}
70

    
71
static inline void sad8_1_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
72
{
73
    asm volatile(
74
        ASMALIGN(4)
75
        "1:                             \n\t"
76
        "movq (%1), %%mm0               \n\t"
77
        "movq (%1, %3), %%mm1           \n\t"
78
        "psadbw (%2), %%mm0             \n\t"
79
        "psadbw (%2, %3), %%mm1         \n\t"
80
        "paddw %%mm0, %%mm6             \n\t"
81
        "paddw %%mm1, %%mm6             \n\t"
82
        "lea (%1,%3,2), %1              \n\t"
83
        "lea (%2,%3,2), %2              \n\t"
84
        "sub $2, %0                     \n\t"
85
        " jg 1b                         \n\t"
86
        : "+r" (h), "+r" (blk1), "+r" (blk2)
87
        : "r" ((long)stride)
88
    );
89
}
90

    
91
static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
92
{
93
    int ret;
94
    asm volatile(
95
        "pxor %%xmm6, %%xmm6            \n\t"
96
        ASMALIGN(4)
97
        "1:                             \n\t"
98
        "movdqu (%1), %%xmm0            \n\t"
99
        "movdqu (%1, %3), %%xmm1        \n\t"
100
        "psadbw (%2), %%xmm0            \n\t"
101
        "psadbw (%2, %3), %%xmm1        \n\t"
102
        "paddw %%xmm0, %%xmm6           \n\t"
103
        "paddw %%xmm1, %%xmm6           \n\t"
104
        "lea (%1,%3,2), %1              \n\t"
105
        "lea (%2,%3,2), %2              \n\t"
106
        "sub $2, %0                     \n\t"
107
        " jg 1b                         \n\t"
108
        : "+r" (h), "+r" (blk1), "+r" (blk2)
109
        : "r" ((long)stride)
110
    );
111
    asm volatile(
112
        "movhlps %%xmm6, %%xmm0         \n\t"
113
        "paddw   %%xmm0, %%xmm6         \n\t"
114
        "movd    %%xmm6, %0             \n\t"
115
        : "=r"(ret)
116
    );
117
    return ret;
118
}
119

    
120
static inline void sad8_x2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
121
{
122
    asm volatile(
123
        ASMALIGN(4)
124
        "1:                             \n\t"
125
        "movq (%1), %%mm0               \n\t"
126
        "movq (%1, %3), %%mm1           \n\t"
127
        "pavgb 1(%1), %%mm0             \n\t"
128
        "pavgb 1(%1, %3), %%mm1         \n\t"
129
        "psadbw (%2), %%mm0             \n\t"
130
        "psadbw (%2, %3), %%mm1         \n\t"
131
        "paddw %%mm0, %%mm6             \n\t"
132
        "paddw %%mm1, %%mm6             \n\t"
133
        "lea (%1,%3,2), %1              \n\t"
134
        "lea (%2,%3,2), %2              \n\t"
135
        "sub $2, %0                     \n\t"
136
        " jg 1b                         \n\t"
137
        : "+r" (h), "+r" (blk1), "+r" (blk2)
138
        : "r" ((long)stride)
139
    );
140
}
141

    
142
static inline void sad8_y2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
143
{
144
    asm volatile(
145
        "movq (%1), %%mm0               \n\t"
146
        "add %3, %1                     \n\t"
147
        ASMALIGN(4)
148
        "1:                             \n\t"
149
        "movq (%1), %%mm1               \n\t"
150
        "movq (%1, %3), %%mm2           \n\t"
151
        "pavgb %%mm1, %%mm0             \n\t"
152
        "pavgb %%mm2, %%mm1             \n\t"
153
        "psadbw (%2), %%mm0             \n\t"
154
        "psadbw (%2, %3), %%mm1         \n\t"
155
        "paddw %%mm0, %%mm6             \n\t"
156
        "paddw %%mm1, %%mm6             \n\t"
157
        "movq %%mm2, %%mm0              \n\t"
158
        "lea (%1,%3,2), %1              \n\t"
159
        "lea (%2,%3,2), %2              \n\t"
160
        "sub $2, %0                     \n\t"
161
        " jg 1b                         \n\t"
162
        : "+r" (h), "+r" (blk1), "+r" (blk2)
163
        : "r" ((long)stride)
164
    );
165
}
166

    
167
static inline void sad8_4_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
168
{
169
    asm volatile(
170
        "movq "MANGLE(bone)", %%mm5     \n\t"
171
        "movq (%1), %%mm0               \n\t"
172
        "pavgb 1(%1), %%mm0             \n\t"
173
        "add %3, %1                     \n\t"
174
        ASMALIGN(4)
175
        "1:                             \n\t"
176
        "movq (%1), %%mm1               \n\t"
177
        "movq (%1,%3), %%mm2            \n\t"
178
        "pavgb 1(%1), %%mm1             \n\t"
179
        "pavgb 1(%1,%3), %%mm2          \n\t"
180
        "psubusb %%mm5, %%mm1           \n\t"
181
        "pavgb %%mm1, %%mm0             \n\t"
182
        "pavgb %%mm2, %%mm1             \n\t"
183
        "psadbw (%2), %%mm0             \n\t"
184
        "psadbw (%2,%3), %%mm1          \n\t"
185
        "paddw %%mm0, %%mm6             \n\t"
186
        "paddw %%mm1, %%mm6             \n\t"
187
        "movq %%mm2, %%mm0              \n\t"
188
        "lea (%1,%3,2), %1              \n\t"
189
        "lea (%2,%3,2), %2              \n\t"
190
        "sub $2, %0                     \n\t"
191
        " jg 1b                         \n\t"
192
        : "+r" (h), "+r" (blk1), "+r" (blk2)
193
        : "r" ((long)stride)
194
    );
195
}
196

    
197
static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2, int stride, int h)
198
{
199
    long len= -(stride*h);
200
    asm volatile(
201
        ASMALIGN(4)
202
        "1:                             \n\t"
203
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
204
        "movq (%2, %%"REG_a"), %%mm1    \n\t"
205
        "movq (%1, %%"REG_a"), %%mm2    \n\t"
206
        "movq (%2, %%"REG_a"), %%mm3    \n\t"
207
        "punpcklbw %%mm7, %%mm0         \n\t"
208
        "punpcklbw %%mm7, %%mm1         \n\t"
209
        "punpckhbw %%mm7, %%mm2         \n\t"
210
        "punpckhbw %%mm7, %%mm3         \n\t"
211
        "paddw %%mm0, %%mm1             \n\t"
212
        "paddw %%mm2, %%mm3             \n\t"
213
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
214
        "movq (%3, %%"REG_a"), %%mm2    \n\t"
215
        "paddw %%mm5, %%mm1             \n\t"
216
        "paddw %%mm5, %%mm3             \n\t"
217
        "psrlw $1, %%mm1                \n\t"
218
        "psrlw $1, %%mm3                \n\t"
219
        "packuswb %%mm3, %%mm1          \n\t"
220
        "psubusb %%mm1, %%mm4           \n\t"
221
        "psubusb %%mm2, %%mm1           \n\t"
222
        "por %%mm4, %%mm1               \n\t"
223
        "movq %%mm1, %%mm0              \n\t"
224
        "punpcklbw %%mm7, %%mm0         \n\t"
225
        "punpckhbw %%mm7, %%mm1         \n\t"
226
        "paddw %%mm1, %%mm0             \n\t"
227
        "paddw %%mm0, %%mm6             \n\t"
228
        "add %4, %%"REG_a"              \n\t"
229
        " js 1b                         \n\t"
230
        : "+a" (len)
231
        : "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" ((long)stride)
232
    );
233
}
234

    
235
static inline void sad8_4_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
236
{
237
    long len= -(stride*h);
238
    asm volatile(
239
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
240
        "movq 1(%1, %%"REG_a"), %%mm2   \n\t"
241
        "movq %%mm0, %%mm1              \n\t"
242
        "movq %%mm2, %%mm3              \n\t"
243
        "punpcklbw %%mm7, %%mm0         \n\t"
244
        "punpckhbw %%mm7, %%mm1         \n\t"
245
        "punpcklbw %%mm7, %%mm2         \n\t"
246
        "punpckhbw %%mm7, %%mm3         \n\t"
247
        "paddw %%mm2, %%mm0             \n\t"
248
        "paddw %%mm3, %%mm1             \n\t"
249
        ASMALIGN(4)
250
        "1:                             \n\t"
251
        "movq (%2, %%"REG_a"), %%mm2    \n\t"
252
        "movq 1(%2, %%"REG_a"), %%mm4   \n\t"
253
        "movq %%mm2, %%mm3              \n\t"
254
        "movq %%mm4, %%mm5              \n\t"
255
        "punpcklbw %%mm7, %%mm2         \n\t"
256
        "punpckhbw %%mm7, %%mm3         \n\t"
257
        "punpcklbw %%mm7, %%mm4         \n\t"
258
        "punpckhbw %%mm7, %%mm5         \n\t"
259
        "paddw %%mm4, %%mm2             \n\t"
260
        "paddw %%mm5, %%mm3             \n\t"
261
        "movq 16+"MANGLE(round_tab)", %%mm5 \n\t"
262
        "paddw %%mm2, %%mm0             \n\t"
263
        "paddw %%mm3, %%mm1             \n\t"
264
        "paddw %%mm5, %%mm0             \n\t"
265
        "paddw %%mm5, %%mm1             \n\t"
266
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
267
        "movq (%3, %%"REG_a"), %%mm5    \n\t"
268
        "psrlw $2, %%mm0                \n\t"
269
        "psrlw $2, %%mm1                \n\t"
270
        "packuswb %%mm1, %%mm0          \n\t"
271
        "psubusb %%mm0, %%mm4           \n\t"
272
        "psubusb %%mm5, %%mm0           \n\t"
273
        "por %%mm4, %%mm0               \n\t"
274
        "movq %%mm0, %%mm4              \n\t"
275
        "punpcklbw %%mm7, %%mm0         \n\t"
276
        "punpckhbw %%mm7, %%mm4         \n\t"
277
        "paddw %%mm0, %%mm6             \n\t"
278
        "paddw %%mm4, %%mm6             \n\t"
279
        "movq  %%mm2, %%mm0             \n\t"
280
        "movq  %%mm3, %%mm1             \n\t"
281
        "add %4, %%"REG_a"              \n\t"
282
        " js 1b                         \n\t"
283
        : "+a" (len)
284
        : "r" (blk1 - len), "r" (blk1 -len + stride), "r" (blk2 - len), "r" ((long)stride)
285
    );
286
}
287

    
288
static inline int sum_mmx(void)
289
{
290
    int ret;
291
    asm volatile(
292
        "movq %%mm6, %%mm0              \n\t"
293
        "psrlq $32, %%mm6               \n\t"
294
        "paddw %%mm0, %%mm6             \n\t"
295
        "movq %%mm6, %%mm0              \n\t"
296
        "psrlq $16, %%mm6               \n\t"
297
        "paddw %%mm0, %%mm6             \n\t"
298
        "movd %%mm6, %0                 \n\t"
299
        : "=r" (ret)
300
    );
301
    return ret&0xFFFF;
302
}
303

    
304
static inline int sum_mmx2(void)
305
{
306
    int ret;
307
    asm volatile(
308
        "movd %%mm6, %0                 \n\t"
309
        : "=r" (ret)
310
    );
311
    return ret;
312
}
313

    
314
static inline void sad8_x2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
315
{
316
    sad8_2_mmx(blk1, blk1+1, blk2, stride, h);
317
}
318
static inline void sad8_y2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
319
{
320
    sad8_2_mmx(blk1, blk1+stride, blk2, stride, h);
321
}
322

    
323

    
324
#define PIX_SAD(suf)\
325
static int sad8_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
326
{\
327
    assert(h==8);\
328
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
329
                 "pxor %%mm6, %%mm6     \n\t":);\
330
\
331
    sad8_1_ ## suf(blk1, blk2, stride, 8);\
332
\
333
    return sum_ ## suf();\
334
}\
335
static int sad8_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
336
{\
337
    assert(h==8);\
338
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
339
                 "pxor %%mm6, %%mm6     \n\t"\
340
                 "movq %0, %%mm5        \n\t"\
341
                 :: "m"(round_tab[1]) \
342
                 );\
343
\
344
    sad8_x2a_ ## suf(blk1, blk2, stride, 8);\
345
\
346
    return sum_ ## suf();\
347
}\
348
\
349
static int sad8_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
350
{\
351
    assert(h==8);\
352
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
353
                 "pxor %%mm6, %%mm6     \n\t"\
354
                 "movq %0, %%mm5        \n\t"\
355
                 :: "m"(round_tab[1]) \
356
                 );\
357
\
358
    sad8_y2a_ ## suf(blk1, blk2, stride, 8);\
359
\
360
    return sum_ ## suf();\
361
}\
362
\
363
static int sad8_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
364
{\
365
    assert(h==8);\
366
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
367
                 "pxor %%mm6, %%mm6     \n\t"\
368
                 ::);\
369
\
370
    sad8_4_ ## suf(blk1, blk2, stride, 8);\
371
\
372
    return sum_ ## suf();\
373
}\
374
\
375
static int sad16_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
376
{\
377
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
378
                 "pxor %%mm6, %%mm6     \n\t":);\
379
\
380
    sad8_1_ ## suf(blk1  , blk2  , stride, h);\
381
    sad8_1_ ## suf(blk1+8, blk2+8, stride, h);\
382
\
383
    return sum_ ## suf();\
384
}\
385
static int sad16_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
386
{\
387
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
388
                 "pxor %%mm6, %%mm6     \n\t"\
389
                 "movq %0, %%mm5        \n\t"\
390
                 :: "m"(round_tab[1]) \
391
                 );\
392
\
393
    sad8_x2a_ ## suf(blk1  , blk2  , stride, h);\
394
    sad8_x2a_ ## suf(blk1+8, blk2+8, stride, h);\
395
\
396
    return sum_ ## suf();\
397
}\
398
static int sad16_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
399
{\
400
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
401
                 "pxor %%mm6, %%mm6     \n\t"\
402
                 "movq %0, %%mm5        \n\t"\
403
                 :: "m"(round_tab[1]) \
404
                 );\
405
\
406
    sad8_y2a_ ## suf(blk1  , blk2  , stride, h);\
407
    sad8_y2a_ ## suf(blk1+8, blk2+8, stride, h);\
408
\
409
    return sum_ ## suf();\
410
}\
411
static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
412
{\
413
    asm volatile("pxor %%mm7, %%mm7     \n\t"\
414
                 "pxor %%mm6, %%mm6     \n\t"\
415
                 ::);\
416
\
417
    sad8_4_ ## suf(blk1  , blk2  , stride, h);\
418
    sad8_4_ ## suf(blk1+8, blk2+8, stride, h);\
419
\
420
    return sum_ ## suf();\
421
}\
422

    
423
PIX_SAD(mmx)
424
PIX_SAD(mmx2)
425

    
426
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
427
{
428
    if (mm_flags & MM_MMX) {
429
        c->pix_abs[0][0] = sad16_mmx;
430
        c->pix_abs[0][1] = sad16_x2_mmx;
431
        c->pix_abs[0][2] = sad16_y2_mmx;
432
        c->pix_abs[0][3] = sad16_xy2_mmx;
433
        c->pix_abs[1][0] = sad8_mmx;
434
        c->pix_abs[1][1] = sad8_x2_mmx;
435
        c->pix_abs[1][2] = sad8_y2_mmx;
436
        c->pix_abs[1][3] = sad8_xy2_mmx;
437

    
438
        c->sad[0]= sad16_mmx;
439
        c->sad[1]= sad8_mmx;
440
    }
441
    if (mm_flags & MM_MMXEXT) {
442
        c->pix_abs[0][0] = sad16_mmx2;
443
        c->pix_abs[1][0] = sad8_mmx2;
444

    
445
        c->sad[0]= sad16_mmx2;
446
        c->sad[1]= sad8_mmx2;
447

    
448
        if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
449
            c->pix_abs[0][1] = sad16_x2_mmx2;
450
            c->pix_abs[0][2] = sad16_y2_mmx2;
451
            c->pix_abs[0][3] = sad16_xy2_mmx2;
452
            c->pix_abs[1][1] = sad8_x2_mmx2;
453
            c->pix_abs[1][2] = sad8_y2_mmx2;
454
            c->pix_abs[1][3] = sad8_xy2_mmx2;
455
        }
456
    }
457
    if ((mm_flags & MM_SSE2) && !(mm_flags & MM_3DNOW)) {
458
        c->sad[0]= sad16_sse2;
459
    }
460
}