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1 | ;****************************************************************************** |
2 | ;* SIMD-optimized SVQ1 encoder functions | |
3 | ;* Copyright (c) 2007 Loren Merritt | |
4 | ;* | |
5 | ;* This file is part of FFmpeg. | |
6 | ;* | |
7 | ;* FFmpeg is free software; you can redistribute it and/or | |
8 | ;* modify it under the terms of the GNU Lesser General Public | |
9 | ;* License as published by the Free Software Foundation; either | |
10 | ;* version 2.1 of the License, or (at your option) any later version. | |
11 | ;* | |
12 | ;* FFmpeg is distributed in the hope that it will be useful, | |
13 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | ;* Lesser General Public License for more details. | |
16 | ;* | |
17 | ;* You should have received a copy of the GNU Lesser General Public | |
18 | ;* License along with FFmpeg; if not, write to the Free Software | |
19 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | ;****************************************************************************** | |
21 | ||
22 | %include "libavutil/x86/x86util.asm" | |
23 | ||
24 | SECTION_TEXT | |
25 | ||
26 | %macro SSD_INT8_VS_INT16 0 | |
27 | cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size | |
28 | pxor m0, m0 | |
29 | .loop | |
30 | sub sizeq, 8 | |
31 | movq m1, [pix1q + sizeq] | |
32 | movu m2, [pix2q + sizeq*2] | |
33 | %if mmsize == 8 | |
34 | movq m3, [pix2q + sizeq*2 + mmsize] | |
35 | punpckhbw m4, m1 | |
36 | punpcklbw m1, m1 | |
37 | psraw m4, 8 | |
38 | psraw m1, 8 | |
39 | psubw m3, m4 | |
40 | psubw m2, m1 | |
41 | pmaddwd m3, m3 | |
42 | pmaddwd m2, m2 | |
43 | paddd m0, m3 | |
44 | paddd m0, m2 | |
45 | %else | |
46 | punpcklbw m1, m1 | |
47 | psraw m1, 8 | |
48 | psubw m2, m1 | |
49 | pmaddwd m2, m2 | |
50 | paddd m0, m2 | |
51 | %endif | |
52 | jg .loop | |
53 | HADDD m0, m1 | |
54 | movd eax, m0 | |
55 | RET | |
56 | %endmacro | |
57 | ||
58 | INIT_MMX mmx | |
59 | SSD_INT8_VS_INT16 | |
60 | INIT_XMM sse2 | |
61 | SSD_INT8_VS_INT16 |