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1 | ;****************************************************************************** |
2 | ;* SIMD-optimized IDCT-related routines | |
3 | ;* Copyright (c) 2008 Loren Merritt | |
4 | ;* Copyright (c) 2003-2013 Michael Niedermayer | |
5 | ;* Copyright (c) 2013 Daniel Kang | |
6 | ;* | |
7 | ;* This file is part of FFmpeg. | |
8 | ;* | |
9 | ;* FFmpeg is free software; you can redistribute it and/or | |
10 | ;* modify it under the terms of the GNU Lesser General Public | |
11 | ;* License as published by the Free Software Foundation; either | |
12 | ;* version 2.1 of the License, or (at your option) any later version. | |
13 | ;* | |
14 | ;* FFmpeg 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 GNU | |
17 | ;* Lesser General Public License for more details. | |
18 | ;* | |
19 | ;* You should have received a copy of the GNU Lesser General Public | |
20 | ;* License along with FFmpeg; if not, write to the Free Software | |
21 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | ;****************************************************************************** | |
23 | ||
24 | %include "libavutil/x86/x86util.asm" | |
25 | ||
26 | SECTION_RODATA | |
27 | ||
28 | cextern pb_80 | |
29 | ||
30 | SECTION_TEXT | |
31 | ||
32 | ;-------------------------------------------------------------------------- | |
33 | ;void ff_put_signed_pixels_clamped(const int16_t *block, uint8_t *pixels, | |
34 | ; int line_size) | |
35 | ;-------------------------------------------------------------------------- | |
36 | ||
37 | %macro PUT_SIGNED_PIXELS_CLAMPED_HALF 1 | |
38 | mova m1, [blockq+mmsize*0+%1] | |
39 | mova m2, [blockq+mmsize*2+%1] | |
40 | %if mmsize == 8 | |
41 | mova m3, [blockq+mmsize*4+%1] | |
42 | mova m4, [blockq+mmsize*6+%1] | |
43 | %endif | |
44 | packsswb m1, [blockq+mmsize*1+%1] | |
45 | packsswb m2, [blockq+mmsize*3+%1] | |
46 | %if mmsize == 8 | |
47 | packsswb m3, [blockq+mmsize*5+%1] | |
48 | packsswb m4, [blockq+mmsize*7+%1] | |
49 | %endif | |
50 | paddb m1, m0 | |
51 | paddb m2, m0 | |
52 | %if mmsize == 8 | |
53 | paddb m3, m0 | |
54 | paddb m4, m0 | |
55 | movq [pixelsq+lsizeq*0], m1 | |
56 | movq [pixelsq+lsizeq*1], m2 | |
57 | movq [pixelsq+lsizeq*2], m3 | |
58 | movq [pixelsq+lsize3q ], m4 | |
59 | %else | |
60 | movq [pixelsq+lsizeq*0], m1 | |
61 | movhps [pixelsq+lsizeq*1], m1 | |
62 | movq [pixelsq+lsizeq*2], m2 | |
63 | movhps [pixelsq+lsize3q ], m2 | |
64 | %endif | |
65 | %endmacro | |
66 | ||
67 | %macro PUT_SIGNED_PIXELS_CLAMPED 1 | |
68 | cglobal put_signed_pixels_clamped, 3, 4, %1, block, pixels, lsize, lsize3 | |
69 | mova m0, [pb_80] | |
70 | lea lsize3q, [lsizeq*3] | |
71 | PUT_SIGNED_PIXELS_CLAMPED_HALF 0 | |
72 | lea pixelsq, [pixelsq+lsizeq*4] | |
73 | PUT_SIGNED_PIXELS_CLAMPED_HALF 64 | |
74 | RET | |
75 | %endmacro | |
76 | ||
77 | INIT_MMX mmx | |
78 | PUT_SIGNED_PIXELS_CLAMPED 0 | |
79 | INIT_XMM sse2 | |
80 | PUT_SIGNED_PIXELS_CLAMPED 3 |