1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
(c) Copyright 2001-2011 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include <direct/fastlz.h>
#include <direct/messages.h>
#include "flz.h"
int
direct_fastlz_compress( const void *input,
int length,
void *output )
{
return fastlz_compress_level( 2, input, length, output );
}
int
direct_fastlz_decompress( const void *input,
int length,
void *output,
int maxout )
{
return fastlz_decompress( input, length, output, maxout );
}
int
direct_fastlz_compress_multi( const void **inputs,
int *lengths,
unsigned int num,
void *output )
{
// FIXME: Optimize by modifying fastlz compressor to take an array of buffers directly
unsigned int i;
int total = 0;
int offset = 0;
void *buffer;
int result;
if (num == 0)
return 0;
if (num == 1)
return direct_fastlz_compress( inputs[0], lengths[0], output );
for (i=0; i<num; i++)
total += lengths[i];
buffer = malloc( total );
if (!buffer) {
D_OOM();
return 0;
}
for (i=0; i<num; i++) {
memcpy( (char*) buffer + offset, inputs[i], lengths[i] );
offset += lengths[i];
}
result = direct_fastlz_compress( buffer, total, output );
free( buffer );
return result;
}
|
