1 /*****************************************************************************
2 * mc.h: h264 encoder library
3 *****************************************************************************
4 * Copyright (C) 2008 Loren Merritt
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 *****************************************************************************/
21 #ifndef X264_X86_UTIL_H
22 #define X264_X86_UTIL_H
25 #define x264_median_mv x264_median_mv_mmxext
26 static inline void x264_median_mv_mmxext( int16_t *dst, int16_t *a, int16_t *b, int16_t *c )
31 "movq %%mm0, %%mm3 \n"
33 "pmaxsw %%mm1, %%mm0 \n"
34 "pminsw %%mm3, %%mm1 \n"
35 "pminsw %%mm2, %%mm0 \n"
36 "pmaxsw %%mm1, %%mm0 \n"
38 :"=m"(*(uint32_t*)dst)
39 :"m"(*(uint32_t*)a), "m"(*(uint32_t*)b), "m"(*(uint32_t*)c)
42 #define x264_predictor_difference x264_predictor_difference_mmxext
43 static inline int x264_predictor_difference_mmxext( int16_t (*mvc)[2], int i_mvc )
48 "pxor %%mm4, %%mm4 \n"
51 "movd -8(%2,%1,4), %%mm0 \n"
52 "movd -4(%2,%1,4), %%mm3 \n"
53 "psubw %%mm3, %%mm0 \n"
58 "movq -8(%2,%1,4), %%mm0 \n"
59 "psubw -4(%2,%1,4), %%mm0 \n"
62 "pxor %%mm2, %%mm2 \n"
63 "psubw %%mm0, %%mm2 \n"
64 "pmaxsw %%mm2, %%mm0 \n"
65 "paddusw %%mm0, %%mm4 \n"
68 :"=m"(output), "+r"(i_mvc), "+r"(mvc)
70 sum += output[0] + output[1] + output[2] + output[3];