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"(*(uint32_t*)dst)
42 :"m"(*(uint32_t*)a), "m"(*(uint32_t*)b), "m"(*(uint32_t*)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 )
51 "pxor %%mm4, %%mm4 \n"
54 "movd -8(%2,%1,4), %%mm0 \n"
55 "movd -4(%2,%1,4), %%mm3 \n"
56 "psubw %%mm3, %%mm0 \n"
61 "movq -8(%2,%1,4), %%mm0 \n"
62 "psubw -4(%2,%1,4), %%mm0 \n"
65 "pxor %%mm2, %%mm2 \n"
66 "psubw %%mm0, %%mm2 \n"
67 "pmaxsw %%mm2, %%mm0 \n"
68 "paddusw %%mm0, %%mm4 \n"
71 :"=m"(output), "+r"(i_mvc)
72 :"r"(mvc), "m"(*(struct {int16_t x[4];} *)mvc)
74 sum += output[0] + output[1] + output[2] + output[3];
77 #undef array_non_zero_int
78 #define array_non_zero_int array_non_zero_int_mmx
79 static ALWAYS_INLINE int array_non_zero_int_mmx( void *v, int i_count )
87 "por 16(%1), %%mm0 \n"
88 "por 24(%1), %%mm0 \n"
89 "por 32(%1), %%mm0 \n"
90 "por 40(%1), %%mm0 \n"
91 "por 48(%1), %%mm0 \n"
92 "por 56(%1), %%mm0 \n"
93 "por 64(%1), %%mm0 \n"
94 "por 72(%1), %%mm0 \n"
95 "por 80(%1), %%mm0 \n"
96 "por 88(%1), %%mm0 \n"
97 "por 96(%1), %%mm0 \n"
98 "por 104(%1), %%mm0 \n"
99 "por 112(%1), %%mm0 \n"
100 "por 120(%1), %%mm0 \n"
101 "packsswb %%mm0, %%mm0 \n"
104 :"r"(v), "m"(*(struct {int16_t x[64];} *)v)
108 else return array_non_zero_int_c( v, i_count );
110 #define x264_cabac_amvd_sum x264_cabac_amvd_sum_mmxext
111 static ALWAYS_INLINE uint32_t x264_cabac_amvd_sum_mmxext(int16_t *mvdleft, int16_t *mvdtop)
113 static const uint64_t pw_2 = 0x0002000200020002ULL;
114 static const uint64_t pw_28 = 0x001C001C001C001CULL;
115 static const uint64_t pw_2184 = 0x0888088808880888ULL;
116 /* MIN(((x+28)*2184)>>16,2) = (x>2) + (x>32) */
117 /* 2184 = fix16(1/30) */
122 "pxor %%mm2, %%mm2 \n"
123 "pxor %%mm3, %%mm3 \n"
124 "psubw %%mm0, %%mm2 \n"
125 "psubw %%mm1, %%mm3 \n"
126 "pmaxsw %%mm2, %%mm0 \n"
127 "pmaxsw %%mm3, %%mm1 \n"
129 "paddw %%mm1, %%mm0 \n"
130 "pmulhuw %4, %%mm0 \n"
131 "pminsw %5, %%mm0 \n"
134 :"m"(*(uint32_t*)mvdleft),"m"(*(uint32_t*)mvdtop),
135 "m"(pw_28),"m"(pw_2184),"m"(pw_2)