Imported Debian version 2.5.0~trusty1.1
[deb_ffmpeg.git] / ffmpeg / libavcodec / x86 / blockdsp.asm
CommitLineData
2ba45a60
DM
1;******************************************************************************
2;* SIMD-optimized clear block functions
3;* Copyright (c) 2002 Michael Niedermayer
4;* Copyright (c) 2008 Loren Merritt
5;* Copyright (c) 2009 Fiona Glaser
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
26SECTION_TEXT
27
28;----------------------------------------
29; void ff_clear_block(int16_t *blocks);
30;----------------------------------------
31; %1 = number of xmm registers used
32; %2 = number of inline store loops
33%macro CLEAR_BLOCK 2
34cglobal clear_block, 1, 1, %1, blocks
35 ZERO m0, m0
36%assign %%i 0
37%rep %2
38 mova [blocksq+mmsize*(0+%%i)], m0
39 mova [blocksq+mmsize*(1+%%i)], m0
40 mova [blocksq+mmsize*(2+%%i)], m0
41 mova [blocksq+mmsize*(3+%%i)], m0
42 mova [blocksq+mmsize*(4+%%i)], m0
43 mova [blocksq+mmsize*(5+%%i)], m0
44 mova [blocksq+mmsize*(6+%%i)], m0
45 mova [blocksq+mmsize*(7+%%i)], m0
46%assign %%i %%i+8
47%endrep
48 RET
49%endmacro
50
51INIT_MMX mmx
52%define ZERO pxor
53CLEAR_BLOCK 0, 2
54INIT_XMM sse
55%define ZERO xorps
56CLEAR_BLOCK 1, 1
57
58;-----------------------------------------
59; void ff_clear_blocks(int16_t *blocks);
60;-----------------------------------------
61; %1 = number of xmm registers used
62%macro CLEAR_BLOCKS 1
63cglobal clear_blocks, 1, 2, %1, blocks, len
64 add blocksq, 768
65 mov lenq, -768
66 ZERO m0, m0
67.loop
68 mova [blocksq+lenq+mmsize*0], m0
69 mova [blocksq+lenq+mmsize*1], m0
70 mova [blocksq+lenq+mmsize*2], m0
71 mova [blocksq+lenq+mmsize*3], m0
72 mova [blocksq+lenq+mmsize*4], m0
73 mova [blocksq+lenq+mmsize*5], m0
74 mova [blocksq+lenq+mmsize*6], m0
75 mova [blocksq+lenq+mmsize*7], m0
76 add lenq, mmsize*8
77 js .loop
78 RET
79%endmacro
80
81INIT_MMX mmx
82%define ZERO pxor
83CLEAR_BLOCKS 0
84INIT_XMM sse
85%define ZERO xorps
86CLEAR_BLOCKS 1