1 /*****************************************************************************
2 * mc.h: h264 encoder library
3 *****************************************************************************
4 * Copyright (C) 2008 x264 Project
6 * Authors: Fiona Glaser <fiona@x264.com>
7 * Loren Merritt <lorenm@u.washington.edu>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
22 *****************************************************************************/
24 #ifndef X264_X86_UTIL_H
25 #define X264_X86_UTIL_H
28 #define x264_median_mv x264_median_mv_mmxext
29 static inline void x264_median_mv_mmxext( int16_t *dst, int16_t *a, int16_t *b, int16_t *c )
34 "movq %%mm0, %%mm3 \n"
36 "pmaxsw %%mm1, %%mm0 \n"
37 "pminsw %%mm3, %%mm1 \n"
38 "pminsw %%mm2, %%mm0 \n"
39 "pmaxsw %%mm1, %%mm0 \n"
41 :"=m"(*(x264_union32_t*)dst)
42 :"m"(M32( a )), "m"(M32( b )), "m"(M32( c ))
45 #define x264_predictor_difference x264_predictor_difference_mmxext
46 static inline int x264_predictor_difference_mmxext( int16_t (*mvc)[2], intptr_t i_mvc )
49 static const uint64_t pw_1 = 0x0001000100010001ULL;
52 "pxor %%mm4, %%mm4 \n"
55 "movd -8(%2,%1,4), %%mm0 \n"
56 "movd -4(%2,%1,4), %%mm3 \n"
57 "psubw %%mm3, %%mm0 \n"
62 "movq -8(%2,%1,4), %%mm0 \n"
63 "psubw -4(%2,%1,4), %%mm0 \n"
66 "pxor %%mm2, %%mm2 \n"
67 "psubw %%mm0, %%mm2 \n"
68 "pmaxsw %%mm2, %%mm0 \n"
69 "paddusw %%mm0, %%mm4 \n"
71 "pmaddwd %4, %%mm4 \n"
72 "pshufw $14, %%mm4, %%mm0 \n"
73 "paddd %%mm0, %%mm4 \n"
75 :"=r"(sum), "+r"(i_mvc)
76 :"r"(mvc), "m"(M64( mvc )), "m"(pw_1)
80 #define x264_cabac_amvd_sum x264_cabac_amvd_sum_mmxext
81 static ALWAYS_INLINE uint32_t x264_cabac_amvd_sum_mmxext(int16_t *mvdleft, int16_t *mvdtop)
83 static const uint64_t pw_2 = 0x0002000200020002ULL;
84 static const uint64_t pw_28 = 0x001C001C001C001CULL;
85 static const uint64_t pw_2184 = 0x0888088808880888ULL;
86 /* MIN(((x+28)*2184)>>16,2) = (x>2) + (x>32) */
87 /* 2184 = fix16(1/30) */
92 "pxor %%mm2, %%mm2 \n"
93 "pxor %%mm3, %%mm3 \n"
94 "psubw %%mm0, %%mm2 \n"
95 "psubw %%mm1, %%mm3 \n"
96 "pmaxsw %%mm2, %%mm0 \n"
97 "pmaxsw %%mm3, %%mm1 \n"
99 "paddw %%mm1, %%mm0 \n"
100 "pmulhuw %4, %%mm0 \n"
101 "pminsw %5, %%mm0 \n"
104 :"m"(M32( mvdleft )),"m"(M32( mvdtop )),
105 "m"(pw_28),"m"(pw_2184),"m"(pw_2)