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ffmpeg / libavcodec / x86 / motion_est_mmx.c @ cfe67526

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/*
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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 "libavutil/x86_cpu.h"
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#include "libavcodec/dsputil.h"
27

    
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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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};
33

    
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DECLARE_ASM_CONST(8, uint64_t, bone)= 0x0101010101010101LL;
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static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
37
{
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    x86_reg len= -(stride*h);
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    __asm__ volatile(
40
        ASMALIGN(4)
41
        "1:                             \n\t"
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        "movq (%1, %%"REG_a"), %%mm0    \n\t"
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        "movq (%2, %%"REG_a"), %%mm2    \n\t"
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        "movq (%2, %%"REG_a"), %%mm4    \n\t"
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        "add %3, %%"REG_a"              \n\t"
46
        "psubusb %%mm0, %%mm2           \n\t"
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        "psubusb %%mm4, %%mm0           \n\t"
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        "movq (%1, %%"REG_a"), %%mm1    \n\t"
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        "movq (%2, %%"REG_a"), %%mm3    \n\t"
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        "movq (%2, %%"REG_a"), %%mm5    \n\t"
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        "psubusb %%mm1, %%mm3           \n\t"
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        "psubusb %%mm5, %%mm1           \n\t"
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        "por %%mm2, %%mm0               \n\t"
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        "por %%mm1, %%mm3               \n\t"
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        "movq %%mm0, %%mm1              \n\t"
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        "movq %%mm3, %%mm2              \n\t"
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        "punpcklbw %%mm7, %%mm0         \n\t"
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        "punpckhbw %%mm7, %%mm1         \n\t"
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        "punpcklbw %%mm7, %%mm3         \n\t"
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        "punpckhbw %%mm7, %%mm2         \n\t"
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        "paddw %%mm1, %%mm0             \n\t"
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        "paddw %%mm3, %%mm2             \n\t"
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        "paddw %%mm2, %%mm0             \n\t"
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        "paddw %%mm0, %%mm6             \n\t"
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        "add %3, %%"REG_a"              \n\t"
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        " js 1b                         \n\t"
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        : "+a" (len)
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        : "r" (blk1 - len), "r" (blk2 - len), "r" ((x86_reg)stride)
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    );
70
}
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static inline void sad8_1_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
73
{
74
    __asm__ volatile(
75
        ASMALIGN(4)
76
        "1:                             \n\t"
77
        "movq (%1), %%mm0               \n\t"
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        "movq (%1, %3), %%mm1           \n\t"
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        "psadbw (%2), %%mm0             \n\t"
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        "psadbw (%2, %3), %%mm1         \n\t"
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        "paddw %%mm0, %%mm6             \n\t"
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        "paddw %%mm1, %%mm6             \n\t"
83
        "lea (%1,%3,2), %1              \n\t"
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        "lea (%2,%3,2), %2              \n\t"
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        "sub $2, %0                     \n\t"
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        " jg 1b                         \n\t"
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        : "+r" (h), "+r" (blk1), "+r" (blk2)
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        : "r" ((x86_reg)stride)
89
    );
90
}
91

    
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static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
93
{
94
    int ret;
95
    __asm__ volatile(
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        "pxor %%xmm6, %%xmm6            \n\t"
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        ASMALIGN(4)
98
        "1:                             \n\t"
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        "movdqu (%1), %%xmm0            \n\t"
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        "movdqu (%1, %3), %%xmm1        \n\t"
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        "psadbw (%2), %%xmm0            \n\t"
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        "psadbw (%2, %3), %%xmm1        \n\t"
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        "paddw %%xmm0, %%xmm6           \n\t"
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        "paddw %%xmm1, %%xmm6           \n\t"
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        "lea (%1,%3,2), %1              \n\t"
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        "lea (%2,%3,2), %2              \n\t"
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        "sub $2, %0                     \n\t"
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        " jg 1b                         \n\t"
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        : "+r" (h), "+r" (blk1), "+r" (blk2)
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        : "r" ((x86_reg)stride)
111
    );
112
    __asm__ volatile(
113
        "movhlps %%xmm6, %%xmm0         \n\t"
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        "paddw   %%xmm0, %%xmm6         \n\t"
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        "movd    %%xmm6, %0             \n\t"
116
        : "=r"(ret)
117
    );
118
    return ret;
119
}
120

    
121
static inline void sad8_x2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
122
{
123
    __asm__ volatile(
124
        ASMALIGN(4)
125
        "1:                             \n\t"
126
        "movq (%1), %%mm0               \n\t"
127
        "movq (%1, %3), %%mm1           \n\t"
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        "pavgb 1(%1), %%mm0             \n\t"
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        "pavgb 1(%1, %3), %%mm1         \n\t"
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        "psadbw (%2), %%mm0             \n\t"
131
        "psadbw (%2, %3), %%mm1         \n\t"
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        "paddw %%mm0, %%mm6             \n\t"
133
        "paddw %%mm1, %%mm6             \n\t"
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        "lea (%1,%3,2), %1              \n\t"
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        "lea (%2,%3,2), %2              \n\t"
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        "sub $2, %0                     \n\t"
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        " jg 1b                         \n\t"
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        : "+r" (h), "+r" (blk1), "+r" (blk2)
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        : "r" ((x86_reg)stride)
140
    );
141
}
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143
static inline void sad8_y2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
144
{
145
    __asm__ volatile(
146
        "movq (%1), %%mm0               \n\t"
147
        "add %3, %1                     \n\t"
148
        ASMALIGN(4)
149
        "1:                             \n\t"
150
        "movq (%1), %%mm1               \n\t"
151
        "movq (%1, %3), %%mm2           \n\t"
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        "pavgb %%mm1, %%mm0             \n\t"
153
        "pavgb %%mm2, %%mm1             \n\t"
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        "psadbw (%2), %%mm0             \n\t"
155
        "psadbw (%2, %3), %%mm1         \n\t"
156
        "paddw %%mm0, %%mm6             \n\t"
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        "paddw %%mm1, %%mm6             \n\t"
158
        "movq %%mm2, %%mm0              \n\t"
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        "lea (%1,%3,2), %1              \n\t"
160
        "lea (%2,%3,2), %2              \n\t"
161
        "sub $2, %0                     \n\t"
162
        " jg 1b                         \n\t"
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        : "+r" (h), "+r" (blk1), "+r" (blk2)
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        : "r" ((x86_reg)stride)
165
    );
166
}
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static inline void sad8_4_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
169
{
170
    __asm__ volatile(
171
        "movq "MANGLE(bone)", %%mm5     \n\t"
172
        "movq (%1), %%mm0               \n\t"
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        "pavgb 1(%1), %%mm0             \n\t"
174
        "add %3, %1                     \n\t"
175
        ASMALIGN(4)
176
        "1:                             \n\t"
177
        "movq (%1), %%mm1               \n\t"
178
        "movq (%1,%3), %%mm2            \n\t"
179
        "pavgb 1(%1), %%mm1             \n\t"
180
        "pavgb 1(%1,%3), %%mm2          \n\t"
181
        "psubusb %%mm5, %%mm1           \n\t"
182
        "pavgb %%mm1, %%mm0             \n\t"
183
        "pavgb %%mm2, %%mm1             \n\t"
184
        "psadbw (%2), %%mm0             \n\t"
185
        "psadbw (%2,%3), %%mm1          \n\t"
186
        "paddw %%mm0, %%mm6             \n\t"
187
        "paddw %%mm1, %%mm6             \n\t"
188
        "movq %%mm2, %%mm0              \n\t"
189
        "lea (%1,%3,2), %1              \n\t"
190
        "lea (%2,%3,2), %2              \n\t"
191
        "sub $2, %0                     \n\t"
192
        " jg 1b                         \n\t"
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        : "+r" (h), "+r" (blk1), "+r" (blk2)
194
        : "r" ((x86_reg)stride)
195
    );
196
}
197

    
198
static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2, int stride, int h)
199
{
200
    x86_reg len= -(stride*h);
201
    __asm__ volatile(
202
        ASMALIGN(4)
203
        "1:                             \n\t"
204
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
205
        "movq (%2, %%"REG_a"), %%mm1    \n\t"
206
        "movq (%1, %%"REG_a"), %%mm2    \n\t"
207
        "movq (%2, %%"REG_a"), %%mm3    \n\t"
208
        "punpcklbw %%mm7, %%mm0         \n\t"
209
        "punpcklbw %%mm7, %%mm1         \n\t"
210
        "punpckhbw %%mm7, %%mm2         \n\t"
211
        "punpckhbw %%mm7, %%mm3         \n\t"
212
        "paddw %%mm0, %%mm1             \n\t"
213
        "paddw %%mm2, %%mm3             \n\t"
214
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
215
        "movq (%3, %%"REG_a"), %%mm2    \n\t"
216
        "paddw %%mm5, %%mm1             \n\t"
217
        "paddw %%mm5, %%mm3             \n\t"
218
        "psrlw $1, %%mm1                \n\t"
219
        "psrlw $1, %%mm3                \n\t"
220
        "packuswb %%mm3, %%mm1          \n\t"
221
        "psubusb %%mm1, %%mm4           \n\t"
222
        "psubusb %%mm2, %%mm1           \n\t"
223
        "por %%mm4, %%mm1               \n\t"
224
        "movq %%mm1, %%mm0              \n\t"
225
        "punpcklbw %%mm7, %%mm0         \n\t"
226
        "punpckhbw %%mm7, %%mm1         \n\t"
227
        "paddw %%mm1, %%mm0             \n\t"
228
        "paddw %%mm0, %%mm6             \n\t"
229
        "add %4, %%"REG_a"              \n\t"
230
        " js 1b                         \n\t"
231
        : "+a" (len)
232
        : "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" ((x86_reg)stride)
233
    );
234
}
235

    
236
static inline void sad8_4_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
237
{
238
    x86_reg len= -(stride*h);
239
    __asm__ volatile(
240
        "movq (%1, %%"REG_a"), %%mm0    \n\t"
241
        "movq 1(%1, %%"REG_a"), %%mm2   \n\t"
242
        "movq %%mm0, %%mm1              \n\t"
243
        "movq %%mm2, %%mm3              \n\t"
244
        "punpcklbw %%mm7, %%mm0         \n\t"
245
        "punpckhbw %%mm7, %%mm1         \n\t"
246
        "punpcklbw %%mm7, %%mm2         \n\t"
247
        "punpckhbw %%mm7, %%mm3         \n\t"
248
        "paddw %%mm2, %%mm0             \n\t"
249
        "paddw %%mm3, %%mm1             \n\t"
250
        ASMALIGN(4)
251
        "1:                             \n\t"
252
        "movq (%2, %%"REG_a"), %%mm2    \n\t"
253
        "movq 1(%2, %%"REG_a"), %%mm4   \n\t"
254
        "movq %%mm2, %%mm3              \n\t"
255
        "movq %%mm4, %%mm5              \n\t"
256
        "punpcklbw %%mm7, %%mm2         \n\t"
257
        "punpckhbw %%mm7, %%mm3         \n\t"
258
        "punpcklbw %%mm7, %%mm4         \n\t"
259
        "punpckhbw %%mm7, %%mm5         \n\t"
260
        "paddw %%mm4, %%mm2             \n\t"
261
        "paddw %%mm5, %%mm3             \n\t"
262
        "movq 16+"MANGLE(round_tab)", %%mm5 \n\t"
263
        "paddw %%mm2, %%mm0             \n\t"
264
        "paddw %%mm3, %%mm1             \n\t"
265
        "paddw %%mm5, %%mm0             \n\t"
266
        "paddw %%mm5, %%mm1             \n\t"
267
        "movq (%3, %%"REG_a"), %%mm4    \n\t"
268
        "movq (%3, %%"REG_a"), %%mm5    \n\t"
269
        "psrlw $2, %%mm0                \n\t"
270
        "psrlw $2, %%mm1                \n\t"
271
        "packuswb %%mm1, %%mm0          \n\t"
272
        "psubusb %%mm0, %%mm4           \n\t"
273
        "psubusb %%mm5, %%mm0           \n\t"
274
        "por %%mm4, %%mm0               \n\t"
275
        "movq %%mm0, %%mm4              \n\t"
276
        "punpcklbw %%mm7, %%mm0         \n\t"
277
        "punpckhbw %%mm7, %%mm4         \n\t"
278
        "paddw %%mm0, %%mm6             \n\t"
279
        "paddw %%mm4, %%mm6             \n\t"
280
        "movq  %%mm2, %%mm0             \n\t"
281
        "movq  %%mm3, %%mm1             \n\t"
282
        "add %4, %%"REG_a"              \n\t"
283
        " js 1b                         \n\t"
284
        : "+a" (len)
285
        : "r" (blk1 - len), "r" (blk1 -len + stride), "r" (blk2 - len), "r" ((x86_reg)stride)
286
    );
287
}
288

    
289
static inline int sum_mmx(void)
290
{
291
    int ret;
292
    __asm__ volatile(
293
        "movq %%mm6, %%mm0              \n\t"
294
        "psrlq $32, %%mm6               \n\t"
295
        "paddw %%mm0, %%mm6             \n\t"
296
        "movq %%mm6, %%mm0              \n\t"
297
        "psrlq $16, %%mm6               \n\t"
298
        "paddw %%mm0, %%mm6             \n\t"
299
        "movd %%mm6, %0                 \n\t"
300
        : "=r" (ret)
301
    );
302
    return ret&0xFFFF;
303
}
304

    
305
static inline int sum_mmx2(void)
306
{
307
    int ret;
308
    __asm__ volatile(
309
        "movd %%mm6, %0                 \n\t"
310
        : "=r" (ret)
311
    );
312
    return ret;
313
}
314

    
315
static inline void sad8_x2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
316
{
317
    sad8_2_mmx(blk1, blk1+1, blk2, stride, h);
318
}
319
static inline void sad8_y2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
320
{
321
    sad8_2_mmx(blk1, blk1+stride, blk2, stride, h);
322
}
323

    
324

    
325
#define PIX_SAD(suf)\
326
static int sad8_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
327
{\
328
    assert(h==8);\
329
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
330
                 "pxor %%mm6, %%mm6     \n\t":);\
331
\
332
    sad8_1_ ## suf(blk1, blk2, stride, 8);\
333
\
334
    return sum_ ## suf();\
335
}\
336
static int sad8_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
337
{\
338
    assert(h==8);\
339
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
340
                 "pxor %%mm6, %%mm6     \n\t"\
341
                 "movq %0, %%mm5        \n\t"\
342
                 :: "m"(round_tab[1]) \
343
                 );\
344
\
345
    sad8_x2a_ ## suf(blk1, blk2, stride, 8);\
346
\
347
    return sum_ ## suf();\
348
}\
349
\
350
static int sad8_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
351
{\
352
    assert(h==8);\
353
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
354
                 "pxor %%mm6, %%mm6     \n\t"\
355
                 "movq %0, %%mm5        \n\t"\
356
                 :: "m"(round_tab[1]) \
357
                 );\
358
\
359
    sad8_y2a_ ## suf(blk1, blk2, stride, 8);\
360
\
361
    return sum_ ## suf();\
362
}\
363
\
364
static int sad8_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
365
{\
366
    assert(h==8);\
367
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
368
                 "pxor %%mm6, %%mm6     \n\t"\
369
                 ::);\
370
\
371
    sad8_4_ ## suf(blk1, blk2, stride, 8);\
372
\
373
    return sum_ ## suf();\
374
}\
375
\
376
static int sad16_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
377
{\
378
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
379
                 "pxor %%mm6, %%mm6     \n\t":);\
380
\
381
    sad8_1_ ## suf(blk1  , blk2  , stride, h);\
382
    sad8_1_ ## suf(blk1+8, blk2+8, stride, h);\
383
\
384
    return sum_ ## suf();\
385
}\
386
static int sad16_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
387
{\
388
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
389
                 "pxor %%mm6, %%mm6     \n\t"\
390
                 "movq %0, %%mm5        \n\t"\
391
                 :: "m"(round_tab[1]) \
392
                 );\
393
\
394
    sad8_x2a_ ## suf(blk1  , blk2  , stride, h);\
395
    sad8_x2a_ ## suf(blk1+8, blk2+8, stride, h);\
396
\
397
    return sum_ ## suf();\
398
}\
399
static int sad16_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
400
{\
401
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
402
                 "pxor %%mm6, %%mm6     \n\t"\
403
                 "movq %0, %%mm5        \n\t"\
404
                 :: "m"(round_tab[1]) \
405
                 );\
406
\
407
    sad8_y2a_ ## suf(blk1  , blk2  , stride, h);\
408
    sad8_y2a_ ## suf(blk1+8, blk2+8, stride, h);\
409
\
410
    return sum_ ## suf();\
411
}\
412
static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
413
{\
414
    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
415
                 "pxor %%mm6, %%mm6     \n\t"\
416
                 ::);\
417
\
418
    sad8_4_ ## suf(blk1  , blk2  , stride, h);\
419
    sad8_4_ ## suf(blk1+8, blk2+8, stride, h);\
420
\
421
    return sum_ ## suf();\
422
}\
423

    
424
PIX_SAD(mmx)
425
PIX_SAD(mmx2)
426

    
427
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
428
{
429
    if (mm_flags & FF_MM_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 & FF_MM_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 & FF_MM_SSE2) && !(mm_flags & FF_MM_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) {
459
        c->sad[0]= sad16_sse2;
460
    }
461
}