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1 : | edgomez | 1192 | ;/**************************************************************************** |
2 : | Isibaar | 3 | ; * |
3 : | edgomez | 1192 | ; * XVID MPEG-4 VIDEO CODEC |
4 : | ; * - MMX CBP computation - | ||
5 : | Isibaar | 3 | ; * |
6 : | edgomez | 1192 | ; * Copyright (C) 2001-2003 Peter Ross <pross@xvid.org> |
7 : | ; * 2002-2003 Pascal Massimino <skal@planet-d.net> | ||
8 : | Isibaar | 3 | ; * |
9 : | edgomez | 1192 | ; * 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. | ||
13 : | Isibaar | 3 | ; * |
14 : | edgomez | 1192 | ; * 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. | ||
18 : | Isibaar | 3 | ; * |
19 : | edgomez | 1192 | ; * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 : | Isibaar | 3 | ; * |
23 : | edgomez | 1192 | ; * $Id: cbp_mmx.asm,v 1.8.2.1 2003-10-28 22:23:03 edgomez Exp $ |
24 : | Isibaar | 3 | ; * |
25 : | edgomez | 1192 | ; ***************************************************************************/ |
26 : | Isibaar | 3 | |
27 : | edgomez | 1192 | BITS 32 |
28 : | edgomez | 851 | |
29 : | edgomez | 1192 | ;============================================================================= |
30 : | ; Macros | ||
31 : | ;============================================================================= | ||
32 : | Isibaar | 3 | |
33 : | %macro cglobal 1 | ||
34 : | Isibaar | 262 | %ifdef PREFIX |
35 : | global _%1 | ||
36 : | %define %1 _%1 | ||
37 : | %else | ||
38 : | global %1 | ||
39 : | %endif | ||
40 : | Isibaar | 3 | %endmacro |
41 : | |||
42 : | edgomez | 1192 | ;============================================================================= |
43 : | ; Local data | ||
44 : | ;============================================================================= | ||
45 : | Isibaar | 3 | |
46 : | edgomez | 1192 | SECTION .rodata |
47 : | Isibaar | 3 | |
48 : | edgomez | 1192 | ALIGN 16 |
49 : | Isibaar | 3 | |
50 : | edgomez | 1192 | ignore_dc: |
51 : | dw 0, -1, -1, -1, -1, -1, -1, -1 | ||
52 : | |||
53 : | ;============================================================================= | ||
54 : | ; Code | ||
55 : | ;============================================================================= | ||
56 : | |||
57 : | SECTION .text | ||
58 : | |||
59 : | Isibaar | 262 | cglobal calc_cbp_mmx |
60 : | Isibaar | 3 | |
61 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
62 : | Isibaar | 3 | ; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
63 : | edgomez | 1192 | ;----------------------------------------------------------------------------- |
64 : | Isibaar | 3 | |
65 : | edgomez | 1192 | ALIGN 16 |
66 : | Isibaar | 262 | calc_cbp_mmx: |
67 : | edgomez | 1192 | push ebx |
68 : | push esi | ||
69 : | Isibaar | 3 | |
70 : | edgomez | 1192 | mov esi, [esp + 8 + 4] ; coeff |
71 : | xor eax, eax ; cbp = 0 | ||
72 : | mov edx, (1 << 5) | ||
73 : | Isibaar | 3 | |
74 : | edgomez | 1192 | movq mm7, [ignore_dc] |
75 : | Isibaar | 262 | |
76 : | Isibaar | 3 | .loop |
77 : | edgomez | 1192 | movq mm0, [esi] |
78 : | movq mm1, [esi+8] | ||
79 : | pand mm0, mm7 | ||
80 : | Isibaar | 3 | |
81 : | edgomez | 1192 | por mm0, [esi+16] |
82 : | por mm1, [esi+24] | ||
83 : | Isibaar | 3 | |
84 : | edgomez | 1192 | por mm0, [esi+32] |
85 : | por mm1, [esi+40] | ||
86 : | Isibaar | 3 | |
87 : | edgomez | 1192 | por mm0, [esi+48] |
88 : | por mm1, [esi+56] | ||
89 : | Isibaar | 3 | |
90 : | edgomez | 1192 | por mm0, [esi+64] |
91 : | por mm1, [esi+72] | ||
92 : | Isibaar | 3 | |
93 : | edgomez | 1192 | por mm0, [esi+80] |
94 : | por mm1, [esi+88] | ||
95 : | Isibaar | 3 | |
96 : | edgomez | 1192 | por mm0, [esi+96] |
97 : | por mm1, [esi+104] | ||
98 : | Isibaar | 3 | |
99 : | edgomez | 1192 | por mm0, [esi+112] |
100 : | por mm1, [esi+120] | ||
101 : | Isibaar | 3 | |
102 : | edgomez | 1192 | por mm0, mm1 |
103 : | movq mm1, mm0 | ||
104 : | psrlq mm1, 32 | ||
105 : | lea esi, [esi + 128] | ||
106 : | Isibaar | 3 | |
107 : | edgomez | 1192 | por mm0, mm1 |
108 : | movd ebx, mm0 | ||
109 : | Isibaar | 3 | |
110 : | edgomez | 1192 | test ebx, ebx |
111 : | jz .next | ||
112 : | or eax, edx ; cbp |= 1 << (5-i) | ||
113 : | Isibaar | 3 | |
114 : | Isibaar | 262 | .next |
115 : | edgomez | 1192 | shr edx,1 |
116 : | jnc .loop | ||
117 : | Isibaar | 3 | |
118 : | edgomez | 1192 | pop esi |
119 : | pop ebx | ||
120 : | |||
121 : | ret |
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