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1 : | edgomez | 1.9 | ;/**************************************************************************** |
2 : | Isibaar | 1.1 | ; * |
3 : | edgomez | 1.9 | ; * XVID MPEG-4 VIDEO CODEC |
4 : | ; * - MMX CBP computation - | ||
5 : | Isibaar | 1.1 | ; * |
6 : | edgomez | 1.9 | ; * Copyright (C) 2001-2003 Peter Ross <pross@xvid.org> |
7 : | ; * 2002-2003 Pascal Massimino <skal@planet-d.net> | ||
8 : | edgomez | 1.8 | ; * |
9 : | edgomez | 1.9 | ; * 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 : | edgomez | 1.8 | ; * |
14 : | edgomez | 1.9 | ; * 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 : | edgomez | 1.8 | ; * |
19 : | edgomez | 1.9 | ; * 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 | 1.1 | ; * |
23 : | edgomez | 1.9 | ; * $Id$ |
24 : | Isibaar | 1.1 | ; * |
25 : | edgomez | 1.9 | ; ***************************************************************************/ |
26 : | edgomez | 1.8 | |
27 : | edgomez | 1.9 | BITS 32 |
28 : | Isibaar | 1.1 | |
29 : | edgomez | 1.9 | ;============================================================================= |
30 : | ; Macros | ||
31 : | ;============================================================================= | ||
32 : | Isibaar | 1.1 | |
33 : | %macro cglobal 1 | ||
34 : | Isibaar | 1.5 | %ifdef PREFIX |
35 : | edgomez | 1.11 | %ifdef MARK_FUNCS |
36 : | edgomez | 1.12 | global _%1:function %1.endfunc-%1 |
37 : | %define %1 _%1:function %1.endfunc-%1 | ||
38 : | edgomez | 1.11 | %else |
39 : | global _%1 | ||
40 : | %define %1 _%1 | ||
41 : | %endif | ||
42 : | Isibaar | 1.5 | %else |
43 : | edgomez | 1.11 | %ifdef MARK_FUNCS |
44 : | edgomez | 1.12 | global %1:function %1.endfunc-%1 |
45 : | edgomez | 1.11 | %else |
46 : | global %1 | ||
47 : | %endif | ||
48 : | Isibaar | 1.5 | %endif |
49 : | Isibaar | 1.1 | %endmacro |
50 : | |||
51 : | edgomez | 1.9 | ;============================================================================= |
52 : | ; Local data | ||
53 : | ;============================================================================= | ||
54 : | |||
55 : | %ifdef FORMAT_COFF | ||
56 : | edgomez | 1.10 | SECTION .rodata |
57 : | edgomez | 1.9 | %else |
58 : | edgomez | 1.10 | SECTION .rodata align=16 |
59 : | edgomez | 1.9 | %endif |
60 : | |||
61 : | ALIGN 16 | ||
62 : | |||
63 : | ignore_dc: | ||
64 : | dw 0, -1, -1, -1, -1, -1, -1, -1 | ||
65 : | |||
66 : | ;============================================================================= | ||
67 : | ; Code | ||
68 : | ;============================================================================= | ||
69 : | Isibaar | 1.1 | |
70 : | edgomez | 1.9 | SECTION .text |
71 : | Isibaar | 1.1 | |
72 : | Isibaar | 1.5 | cglobal calc_cbp_mmx |
73 : | Isibaar | 1.1 | |
74 : | edgomez | 1.9 | ;----------------------------------------------------------------------------- |
75 : | Isibaar | 1.1 | ; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
76 : | edgomez | 1.9 | ;----------------------------------------------------------------------------- |
77 : | Isibaar | 1.1 | |
78 : | edgomez | 1.9 | ALIGN 16 |
79 : | Isibaar | 1.5 | calc_cbp_mmx: |
80 : | edgomez | 1.9 | push ebx |
81 : | push esi | ||
82 : | Isibaar | 1.5 | |
83 : | edgomez | 1.9 | mov esi, [esp + 8 + 4] ; coeff |
84 : | xor eax, eax ; cbp = 0 | ||
85 : | mov edx, (1 << 5) | ||
86 : | Isibaar | 1.1 | |
87 : | edgomez | 1.9 | movq mm7, [ignore_dc] |
88 : | Isibaar | 1.1 | |
89 : | .loop | ||
90 : | edgomez | 1.9 | movq mm0, [esi] |
91 : | movq mm1, [esi+8] | ||
92 : | pand mm0, mm7 | ||
93 : | Isibaar | 1.5 | |
94 : | edgomez | 1.9 | por mm0, [esi+16] |
95 : | por mm1, [esi+24] | ||
96 : | Isibaar | 1.1 | |
97 : | edgomez | 1.9 | por mm0, [esi+32] |
98 : | por mm1, [esi+40] | ||
99 : | Isibaar | 1.1 | |
100 : | edgomez | 1.9 | por mm0, [esi+48] |
101 : | por mm1, [esi+56] | ||
102 : | Isibaar | 1.1 | |
103 : | edgomez | 1.9 | por mm0, [esi+64] |
104 : | por mm1, [esi+72] | ||
105 : | Isibaar | 1.1 | |
106 : | edgomez | 1.9 | por mm0, [esi+80] |
107 : | por mm1, [esi+88] | ||
108 : | Isibaar | 1.1 | |
109 : | edgomez | 1.9 | por mm0, [esi+96] |
110 : | por mm1, [esi+104] | ||
111 : | Isibaar | 1.1 | |
112 : | edgomez | 1.9 | por mm0, [esi+112] |
113 : | por mm1, [esi+120] | ||
114 : | Isibaar | 1.1 | |
115 : | edgomez | 1.9 | por mm0, mm1 |
116 : | movq mm1, mm0 | ||
117 : | psrlq mm1, 32 | ||
118 : | lea esi, [esi + 128] | ||
119 : | Isibaar | 1.1 | |
120 : | edgomez | 1.9 | por mm0, mm1 |
121 : | movd ebx, mm0 | ||
122 : | Isibaar | 1.1 | |
123 : | edgomez | 1.9 | test ebx, ebx |
124 : | jz .next | ||
125 : | or eax, edx ; cbp |= 1 << (5-i) | ||
126 : | Isibaar | 1.1 | |
127 : | Isibaar | 1.5 | .next |
128 : | edgomez | 1.9 | shr edx,1 |
129 : | jnc .loop | ||
130 : | |||
131 : | pop esi | ||
132 : | pop ebx | ||
133 : | Isibaar | 1.1 | |
134 : | edgomez | 1.9 | ret |
135 : | edgomez | 1.12 | .endfunc |
136 : |
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