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1 : | suxen_drol | 1397 | ;/***************************************************************************** |
2 : | ; * | ||
3 : | ; * XVID MPEG-4 VIDEO CODEC | ||
4 : | ; * - mmx post processing - | ||
5 : | ; * | ||
6 : | ; * Copyright(C) 2004 Peter Ross <pross@xvid.org> | ||
7 : | ; * | ||
8 : | ; * XviD is free software; you can redistribute it and/or modify it | ||
9 : | ; * under the terms of the GNU General Public License as published by | ||
10 : | ; * the Free Software Foundation; either version 2 of the License, or | ||
11 : | ; * (at your option) any later version. | ||
12 : | ; * | ||
13 : | ; * This program is distributed in the hope that it will be useful, | ||
14 : | ; * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 : | ; * GNU General Public License for more details. | ||
17 : | ; * | ||
18 : | ; * You should have received a copy of the GNU General Public License | ||
19 : | ; * along with this program; if not, write to the Free Software | ||
20 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 : | ; * | ||
22 : | Isibaar | 1795 | ; * $Id: postprocessing_mmx.asm,v 1.7 2008-11-26 01:04:34 Isibaar Exp $ |
23 : | suxen_drol | 1397 | ; * |
24 : | ; *************************************************************************/ | ||
25 : | |||
26 : | Isibaar | 1795 | %include "nasm.inc" |
27 : | suxen_drol | 1397 | |
28 : | ;=========================================================================== | ||
29 : | ; read only data | ||
30 : | ;=========================================================================== | ||
31 : | |||
32 : | Isibaar | 1795 | DATA |
33 : | suxen_drol | 1397 | |
34 : | mmx_0x80: | ||
35 : | times 8 db 0x80 | ||
36 : | |||
37 : | mmx_offset: | ||
38 : | %assign i -128 | ||
39 : | %rep 256 | ||
40 : | times 8 db i | ||
41 : | %assign i i+1 | ||
42 : | %endrep | ||
43 : | |||
44 : | |||
45 : | ;============================================================================= | ||
46 : | ; Code | ||
47 : | ;============================================================================= | ||
48 : | |||
49 : | Isibaar | 1795 | SECTION .rotext align=SECTION_ALIGN |
50 : | suxen_drol | 1397 | |
51 : | cglobal image_brightness_mmx | ||
52 : | |||
53 : | |||
54 : | ;////////////////////////////////////////////////////////////////////// | ||
55 : | ;// image_brightness_mmx | ||
56 : | ;////////////////////////////////////////////////////////////////////// | ||
57 : | |||
58 : | Isibaar | 1795 | align SECTION_ALIGN |
59 : | suxen_drol | 1397 | image_brightness_mmx: |
60 : | |||
61 : | movq mm6, [mmx_0x80] | ||
62 : | |||
63 : | Isibaar | 1795 | mov eax, prm5d ; offset |
64 : | %ifdef ARCH_IS_X86_64 | ||
65 : | lea r9, [mmx_offset] | ||
66 : | movq mm7, [r9 + (_EAX + 128)*8] ; being lazy | ||
67 : | %else | ||
68 : | movq mm7, [mmx_offset + (_EAX + 128)*8] ; being lazy | ||
69 : | %endif | ||
70 : | suxen_drol | 1397 | |
71 : | Isibaar | 1795 | mov TMP1, prm1 ; Dst |
72 : | mov TMP0, prm2 ; stride | ||
73 : | suxen_drol | 1397 | |
74 : | Isibaar | 1795 | push _ESI |
75 : | push _EDI | ||
76 : | %ifdef ARCH_IS_X86_64 | ||
77 : | mov _ESI, prm3 | ||
78 : | mov _EDI, prm4 | ||
79 : | %else | ||
80 : | mov _ESI, [_ESP+8+12] ; width | ||
81 : | mov _EDI, [_ESP+8+16] ; height | ||
82 : | %endif | ||
83 : | |||
84 : | Isibaar | 1793 | .yloop: |
85 : | Isibaar | 1795 | xor _EAX, _EAX |
86 : | suxen_drol | 1397 | |
87 : | Isibaar | 1793 | .xloop: |
88 : | Isibaar | 1795 | movq mm0, [TMP1 + _EAX] |
89 : | movq mm1, [TMP1 + _EAX + 8] ; mm0 = [dst] | ||
90 : | suxen_drol | 1397 | |
91 : | paddb mm0, mm6 ; unsigned -> signed domain | ||
92 : | paddb mm1, mm6 | ||
93 : | paddsb mm0, mm7 | ||
94 : | paddsb mm1, mm7 ; mm0 += offset | ||
95 : | psubb mm0, mm6 | ||
96 : | psubb mm1, mm6 ; signed -> unsigned domain | ||
97 : | |||
98 : | Isibaar | 1795 | movq [TMP1 + _EAX], mm0 |
99 : | movq [TMP1 + _EAX + 8], mm1 ; [dst] = mm0 | ||
100 : | suxen_drol | 1397 | |
101 : | Isibaar | 1795 | add _EAX,16 |
102 : | cmp _EAX,_ESI | ||
103 : | suxen_drol | 1397 | jl .xloop |
104 : | |||
105 : | Isibaar | 1795 | add TMP1, TMP0 ; dst += stride |
106 : | sub _EDI, 1 | ||
107 : | suxen_drol | 1397 | jg .yloop |
108 : | |||
109 : | Isibaar | 1795 | pop _EDI |
110 : | pop _ESI | ||
111 : | suxen_drol | 1397 | |
112 : | ret | ||
113 : | Isibaar | 1793 | ENDFUNC |
114 : | suxen_drol | 1397 | ;////////////////////////////////////////////////////////////////////// |
115 : | Isibaar | 1790 | |
116 : | %ifidn __OUTPUT_FORMAT__,elf | ||
117 : | section ".note.GNU-stack" noalloc noexec nowrite progbits | ||
118 : | %endif | ||
119 : |
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